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[ PhD Program: Molecular Biology Keyword: ]

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NameEmailPhd ProgramResearch InterestsPublications
Ahmed, Shawn email , , , , , publications

Our research group utilizes the nematode C. elegans to investigate germ cell immortality: mechanisms that allow germ cells remain eternally youthful as they are transmitted from one generation to the next. We also study how telomerase functions at chromosome termini, as well as the consequences of telomere dysfunction.

Anton, Eva email , , , , , publications

Laminar organization of neurons in cerebral cortex is critical for normal brain function. Two distinct cellular events guarantee the emergence of laminar organization– coordinated sequence of neuronal migration, and generation of radial glial cells that supports neurogenesis and neuronal migration. Our goal is to understand the cellular and molecular mechanisms underlying neuronal migration and layer formation in the mammalian cerebral cortex. Towards this goal, we are studying the following three related questions: 1. What are the signals that regulate the establishment, development and differentiation of radial glial cells, a key substrate for neuronal migration and a source of new neurons in cerebral cortex?2. What are the signals for neuronal migration that determine how neurons reach their appropriate positions in the developing cerebral cortex?3. What are the specific cell-cell adhesion related mechanisms that determine how neurons migrate and coalesce into distinct layers in the developing cerebral cortex?

Archer, Trevor email , , , publications

Molecular carcinogenesis: cancer, chromatin, transcription, and epigenetics

Asokan, Aravind email , , , , , publications

Our research group is focused on combining the tools and principles of molecular biology and genetics with chemistry to generate a synthetic viral toolkit. The lab-derived synthetic viral entities are utilized to dissect mechanisms of viral tissue tropism, as new reagents for applications in genomics and proteomics and as new vectors for human gene therapy applications.

Baldwin, Albert S. email , , , , , , publications

Our laboratory studies an amazing regulatory factor known as NF-kappaB. This transcription factor controls key developmental and immunological functions and its dysregulation lies at the heart of virtually all major human diseases.

Bear, James E. email , , , , , , , publications

Our lab uses a combination of genetics, high-resolution cellular and animal imaging, animal tumor models and microfluidic approaches to study the problems of cell motility and cytoskeletal organization. We are particularly interested in 1) How cells sense cues in their environment and respond with directed migration, 2) How the actin cytoskeleton is organized at the leading edge of migrating cells and 3) How these processes contribute to tumor metastasis.

Bloom, Kerry email , , , , , , publications

Our objective is to understand the dynamic and structural properties of chromosomes during mitosis.  We use live cell imaging techniques to address how kinetochores are assembled, capture microtubules and promote faithful segregation of chromosomes.

Brenman, Jay email , , , , , , publications

The Brenman lab studies how a universal energy and stress sensor, AMP-activated protein kinase (AMPK) regulates cellular function and signaling.  AMPK is proposed to be a therapeutic target for Type 2 diabetes and Metabolic syndrome (obesity, insulin resistance, cardiovascular disease). In addition, AMPK can be activated by LKB1, a known human tumor suppressor. Thus AMPK signaling is not only relevant to diabetes but also cancer.  We are interested in molecular genetic and biochemical approaches to understand how AMPK contributes to neurodegeneration, metabolism/cardiac disease and cancer.

Brennwald, Patrick email , , , , , publications

We are interested in the mechanism by which eukaryotic cells are polarized and the role of vesicle transport plays in the determination and regulation of cell polarity and tumorigenesis.

Brustad, Eric M email , , , publications

The Brustad group is interested in applying chemical principles to expand biological systems beyond Nature’s design. We make use of developing technologies such as unnatural amino acid mutagenesis and non-natural cofactor design to increase the chemical functionality available to proteins. Current efforts are directed towards the genetic incorporation of organocofactor mimics as well as heme protein engineering through the incorporation of orthogonal metalloporphyrin scaffolds. We combine methods in synthetic chemistry, molecular biology, X-ray crystallography, and directed evolution to optimize the function of our protein engineering efforts.

Cairns, Bruce A. email , , , , publications

The immune system of severely burned patients becomes extremely suppressed after injury. An overwhelming number of patients die from wound infection and sepsis. However, we are unable to graft these patients with skin from other donors as their immune system is still able to reject the graft efficiently. Our inability to cover the wound site leaves the patients further open to bacterial and fungal infections. Our laboratory investigates the translational immune mechanisms for these devastating consequences of burn within mouse models and burn patients. Focuses in the lab include  1) investigation of innate molecule control of both the innate and adaptive immune systems after burn injury, 2) Role of innate signaling to Damage Associated Molecular Patterns in Immune Dysfunction after burn / inhalational injury,focusing on  mTOR-mediated Immunomodulation 3) Using NRF2/KEAP1-Targeted Therapy to Prevent Pneumonitis and Immune Dysfunction After Radiation or Combined Burn-Radiation Injury and 4) Investigating sex-specific disparities in Immune Dysfunction after trauma / transplantation. ​

Calabrese, J. Mauro email , , , , , , , , , publications

Our lab is trying to understand the mechanisms by which long noncoding RNAs orchestrate the epigenetic control of gene expression. Relevant examples of this type of gene regulation occur in the case of X-chromosome inactivation and autosomal imprinting. We specialize in genomics, but rely a combination of techniques —  including genetics, proteomics, and molecular, cell and computational biology — to study these processes in both mouse and human stem and somatic cell systems.

Carter, Charles email , , , , , , publications

Molecular evolution and mechanistic enzymology find powerful synergy in our study of aminoacyl-tRNA synthetases, which translate the genetic code. Class I Tryptophanyl-tRNA Synthetase stores free energy as conformational strain imposed by long-range, interactions on the minimal catalytic domain (MCD) when it binds ATP.  We study how this allostery works using X-ray crystallography, bioinformatics, molecular dynamics, enzyme kinetics, and thermodynamics. As coding sequences for class I and II MCDs have significant complementarity, we also pursuing their sense/antisense ancestry.  Member of the Molecular & Cellular Biophysics Training Program.

Church, Frank C. email , , , , , , publications

Our research is concerned with proteases and their inhibitors in various disease processes (thrombosis and cancer); our science tools are structure-activity, cell biology and signaling, pathobiology, immunohistochemistry, and in vivo models.

Coleman, William B. email , , , , , publications

The research in our laboratory involves several major projects related to the molecular pathogenesis of human cancer and investigations related to the biology of liver stem-like progenitor cells, including (i) characterization of human liver tumor suppressor genes, (ii) analysis of genetic determinants of breast cancer, (iii) investigation of mechanisms governing aberrant DNA methylation in breast cancer, (iv) liver progenitor cell responses after toxic liver injury, and (v) transplantation of liver stem-like progenitor cells for correction of genetic liver disease.

Conlon, Frank email , , , , , , publications

Our lab is studying the molecular mechanisms which are involved in the induction and proliferation and patterning of cardiac progenitor cell populations. To identify the molecular pathways involved in these processes, we have used Xenopus and mouse as model systems with particular focus on the endogenous role of genes implicated in the early steps of cardiogenesis and human congenital heart disease. Present projects in the lab involve embryological manipulations, tissue explant cultures, molecular screens as well as protein-DNA interaction experiments, biochemistry and promoter analysis.

Cook, Jeanette (Jean) email , , , , , , , publications

The Cook lab studies the major transitions in the cell division cycle and how perturbations in cell cycle control affect genome stability. We have particular interest in mechanisms that control protein abundance and localization at transitions into and out of S phase (DNA replication phase) and into an out of quiescence. We use a variety of molecular biology, cell biology, biochemical, and genetic techniques to manipulate and evaluate human cells as they proliferate or exit the cell cycle. We collaborate with colleagues interested in the interface of cell cycle control with developmental biology, signal transduction, DNA damage responses, and oncogenesis.

Copenhaver, Gregory P. email , , , , , publications

The primary research area my lab is the regulation of meiotic recombination at the genomic level in higher eukaryotes.  Genomic instability and disease states, including cancer, can occur if the cell fails to properly regulate recombination.  We have created novel tools that give our lab an unparalleled ability to find mutants in genes that control recombination. We use a combination of genetics, bioinformatics, computational biology, cell biology and genomics in our investigations.  A second research area in the lab is the role of centromere DNA in chromosome biology.  We welcome undergraduates, graduate students, postdoctoral fellows and visiting scientists to join our team.

Costello, Joe email , , , , , publications

The main research project is to determine the role of intercellular junctions in normal development, cell aging and cataract formation in human and animal lenses.

Cotter, Peggy email , , , , publications

Dr. Cotter’s research is aimed at understanding molecular mechanisms of bacterial pathogenesis. Using Bordetella species as models, her group is studying the role of virulence gene regulation in respiratory pathogenesis, how virulence factors activate and suppress inflammation in the respiratory tract, and how proteins of the Two Partner Secretion pathway family are secreted to the bacterial surface and into the extracellular environment. A second major project is focused on Burkholderia pseudomallei, an emerging infectious disease and potential biothreat agent. This research is aimed at understanding the role of autotransporter proteins in the ability of this organism to cause disease via the respiratory route.

Cox, Adrienne email , , , , , , publications

Our lab is interested in molecular mechanisms of oncogenesis, specifically as regulated by Ras and Rho family small GTPases. We are particularly interested in understanding how membrane targeting sequences of these proteins mediate both their subcellular localization and their interactions with regulators and effectors. Both Ras and Rho proteins are targeted to membranes by characteristic combinations of basic residues and lipids that may include the fatty acid palmitate as well as farnesyl and geranylgeranyl isoprenoids. The latter are targets for anticancer drugs; we are also investigating their unexpectedly complex mechanism of action. Finally, we are also studying how these small GTPases mediate cellular responses to ionizing radiation – how do cells choose whether to arrest, die or proliferate?

Cyr, Douglas M. email , , , , publications

The Cyr laboratory studies cellular mechanisms for cystic fibrosis and prion disease.  We seek to determine how protein misfolding leads to the lung pathology associated with Cystic Fibrosis and the neurodegeneration associated with prion disease.

Davis, Ian email , , , , publications

With a particular interest in pediatric solid tumors, our lab aims to develop a mechanistic understanding of the role of aberrant or dysregulated transcription factors in oncogenesis.

de Silva, Aravinda email , , , , publications

We study Borrelia burgdorferi (the agent of Lyme disease) as a model for understanding arthropod vector-borne disease transmission. We also study the epidemiology and pathogenesis of dengue viruses associated with hemorrhagic disease.

Dowen, Jill email , , , , , , publications

My lab studies how genes function within the three-dimensional context of the nucleus to control development and prevent disease. We combine genomic approaches (ChIP-Seq, ChIA-PET) and genome editing tools (CRISPR) to study the epigenetic mechanisms by which transcriptional regulatory elements control gene expression in embryonic stem cells.  Our current research efforts are divided into 3 areas: 1) Mapping the folding pattern of the genome 2) Dynamics of three-dimensional genome organization as cells differentiate and 3) Functional analysis of altered chromosome structure in cancer and other diseases.

Duronio, Bob email , , , , , publications

My lab studies how cell proliferation is controlled during animal development, with a focus on the genetic and epigenetic mechanisms that regulate DNA replication and gene expression throughout the cell cycle. Many of the genes and signaling pathways that we study are frequently mutated in human cancers. Our current research efforts are divided into three areas:  1) Plasticity of cell cycle control during development  2) Histone mRNA biosynthesis and nuclear body function  3) Epigenetic control of genome replication and function

Emanuele, Michael email , , , , , publications

Our lab applies cutting edge genetic and proteomic technologies to unravel dynamic signaling networks involved in cell proliferation, genome stability and cancer. These powerful technologies are used to systematically interrogate the ubiquitin proteasome system (UPS), and allow us to gain a systems level understanding of the cell at unparalleled depth. We are focused on UPS signaling in cell cycle progression and genome stability, since these pathways are universally perturbed in cancer.

Errede, Beverly email , , , publications

Yeast molecular genetics; MAP-Kinease activation pathways; regulation of cell differentiation.

Everett, Eric T email , , , , , publications

Our research focuses upon craniofacial and mineralized tissue genetics; gene: environment interactions; mapping of complex traits; normal variation (to the extent that normal variation becomes abnormal); and animal models for oral/dental/craniofacial disorders.

Franco, Hector L. email , , , , , publications

My lab has a long-standing interest in gene regulation, epigenetics, chromatin and RNA biology, especially as it pertains to cancer. We are interested in studying the formation and function of transcriptional enhancers and the non-coding RNAs that are actively produced at enhancers, known as enhancer RNAs, which are involved in modulating several aspects of gene regulation. In addition, we aim to understand how transcriptional enhancers help orchestrate responses to external stimuli found in the tumor microenvironment. We address these research aims by using an interdisciplinary approach that combines molecular and cellular techniques with powerful genomic and computational approaches.

Frazier-Bowers, Sylvia A. email , , , publications

My research interests include understanding the genetic basis of craniofacial anomalies relevant to the field of orthodontics.  Specifically, I investigate the genetic basis of dentofacial variation in a skeletal (mandibular prognathic) dentofacial phenotype (1-5% prevalence); tooth agenesis (congenitally missing teeth) and primary failure of eruption (a condition marked by the failure of teeth to erupt).  My current efforts focus on gene discovery and phenotype dissection of dentofacial variation using 1) 2 /3 dimensional methods for rigorous clinical characterization, 2) genotyping and linkage analysis and 3) mutational analysis using the candidate gene approach.

Furey, Terry email , , , , , publications

The Furey Lab is interested in understanding gene regulation processes in specific cell types, especially with respect to complex phenotypes, and the effect of genetic and environmental variation on gene regulation. We have explored these computationally by concentrating on the analysis of genome-wide open chromatin data generated from high-throughput sequencing experiments; and the development of statistical methods and computational tools to investigate underlying genetic and biological mechanisms of complex phenotypes. Our current projects include determining the molecular effects of exposure to 1,3-butadiene, a known carcinogen, on chromatin, gene regulation, and gene expression in lung, liver, and kidney tissues of genetically diverse mouse strains. We are also exploring chromatin, transcriptional, and microbial changes in inflammatory bowel diseases to identify biomarkers of disease onset, severity, and progression.

Giudice, Jimena email , , , , , publications

During development transcriptional and posttranscriptional networks are coordinately regulated to drive organ maturation, tissue formation, and cell fate. Interestingly, more than 90% of the human genes undergo alternative splicing, a posttranscriptional mechanism that explains how one gene can give rise to multiple protein isoforms. Heart and skeletal muscle are two of the tissues where the most tissue specific splicing takes place raising the question of how developmental stage- and tissue-specific splicing influence protein function and how this regulation occurs. In my lab we are interested on two exciting aspects of this broad question: i) how alternative splicing of trafficking and membrane remodeling genes contributes to muscle development, structure, and function, ii) the coupling between epigenetics and alternative splicing in postnatal heart development.

Goldstein, Bob email , , , , , , publications

We address fundamental issues in cell and developmental biology, issues such as how cells move to specific positions, how the orientations of cell divisions are determined, how the mitotic spindle is positioned in cells, and how cells respond to cell signaling – for example Wnt signaling, which is important in development and in cancer biology. We are committed to applying whatever methods are required to answer important questions. As a result, we use diverse methods, including methods of cell biology, developmental biology, forward and reverse genetics including RNAi, biochemistry, biophysics, mathematical and computational modeling and simulations, molecular biology, and live microscopy of cells and of the dynamic components of the cytoskeleton – microfilaments, microtubules, and motor proteins. Most experiments in the lab use C. elegans embryos, and we have also used Drosophila and Xenopus recently. C. elegans is valuable as a model system because of the possibility of combining the diverse techniques above to answer a wide array of interesting questions. We also have a project underway to develop a new model system for studying how cellular and developmental mechanisms evolve, using little-studied organisms called water bears. Rotating graduate students learn to master existing techniques, and students who join the lab typically grow their rotation projects into larger, long term projects, and/or develop creative, new projects.

Gordon-Larsen, Penny email , , , , publications

Gordon-Larsen’s work integrates biology, behavior, and environment to understand, prevent and treat obesity, cardiovascular and cardiometabolic diseases. She works with biomarker, microbiome, metabolome, genetic, weight, diet, and environment data using multilevel modeling and pathway-based analyses. She works with several longitudinal cohorts that span more than 30 years. Most of her work uses data from the US and China. Her research teams include a wide variety of scientists working in areas such as genetics, medicine, bioinformatics, biostatistics, microbiology, nutrition, and epidemiology.

Graves, Lee M. email , , , , publications

Our lab is studying the role of mitogen and stress-activated protein kinases to regulate key aspects of cell metabolism. We are also studying signalling by tyrosine kinases in response to toxicological agents or cell stress.

Griffith, Jack email , , , , , , publications

We are interested in basic DNA-protein interactions as related to – DNA replication, DNA repair and telomere function.  We utilize a combination of state of the art molecular and biochemical methods together with high resolution electron microscopes.

Hammond, Scott email , , , , , publications

My lab studies a gene silencing phenomenon called RNA interference, or RNAi.  We are interested in the role of RNAi in regulating endogenous genes, particularly those involved in cancer progression pathways.

Han, Zongchao email , , , , publications

My research focus centers on retinal gene/drug therapy using nanotechnologies. My laboratory is interested in developing gene therapies for inherited blinding diseases and eye tumors. We are particularly interested in understanding the gene expression patterns that are regulated by the cis-regulatory elements. We utilize compacted DNA nanoparticles which have the ability to transfer large genetic messages to overcome various technical challenges and to appreciate the translational potential of this technology. This multidimensional technology also facilitated targeted drug delivery. Currently, we are working on the design and development of several specific nano formulations with targeting, bioimaging and controlled release specificities.

Hayes, David N email , , , publications

Molecular carcinogenesis, research translation, biomarkers, computational toxicology

Heise, Mark email , , , , , publications

We study alphavirus infection to model virus-induced disease.  Projects include 1) mapping viral determinants involved in encephalitis, and 2) using a mouse model of virus-induced arthritis to identify viral and host factors associated with disease.

Hirsch, Matthew email , , , , , publications

Our lab works with adeno-associated viral vectors for both the characterization of vector and host responses upon transduction and as therapeutic agents for the treatment of genetic diseases.  In particular, we tend to focus on the 145 nucleotide viral inverted terminal repeats of the transgenic genome and their multiple functions including the replication initiation, inherent promoter activity, and stimulation of intra/inter molecular DNA repair pathways.  The modification of the AAV ITRs by synthetic sequences imparts unique functions/activities rendering these synthetic vectors perhaps better suited for therapeutic applications.

Hodge, Clyde email , , , , , publications

The primary goal of our research is to elucidate the neurobiological systems that mediate the behavioral effects of alcohol and drugs of abuse.

Ideraabdullah, Folami Y email , , , , publications

The lab focus is to understand the mechanism of gene-environment interactions by examining the genetic basis of epigenetic response to nutrition and environmental toxicants. The long-term goal is to identify and characterize genetic (naturally occurring and induced) and environmental (toxicant and nutritional) causes of disruption of DNA methylation patterns during development and to determine their role in disease. The primary focus is on DNA methylation patterns during germ cell and early embryonic development during critical windows of epigenetic reprogramming.

Juliano, Jonathan email , , , , publications

Despite recent success in reducing malaria transmission, the estimated annual numbers of malaria infections (~225 million) and deaths (~781,000) remain high. Despite this immense burden, our understanding of the genetic diversity of malaria and the factors that promote this diversity is limited.  This diversity among plasmodial parasites has a critical impact on many factors involved in the control of infections, including: 1) development of drug resistance, 2) development of naturally acquired immunity, and 3) vaccine design.  My laboratory’s primary interests are: 1) describing the genetic diversity of P. falciparum using molecular biological and next generation sequencing tools, and 2) using these data to understand the evolutionary and ecological factors that drive this diversity, promote the emergence of drug resistance and affect our ability to effectively develop immunity.

Kafri, Tal email , , , , publications

Our lab is focused on the development of HIV-1 vectors for gene therapy of genetic disease.  In addition, we are using the vector system to study HIV-1 biology.  We are also interested in utilizing the HIV-1 vector system for functional genomics.

Kaufman, David G. email , , , , , publications

Topic 1  We seek genomic targets for carcinogenesis among segments of DNA replicated in early S phase when cells are most susceptible to carcinogens.  We are mapping genomic sites replicated during early S phase, identifying origins of replication activated in this interval, and characterizing temporal sequencing of replication from these origins.  Topic 2  We are reconstructing differentiated and functional human endometrial tissue from epithelial and stromal cells interacting in culture.  We use these co-cultures to study development of endometrial cancer.

Kesimer, Mehmet email , , , , publications

The upper airways serve to clean inspired air from physical, chemical and pathological detritus that might damage the delicate peripheral airways where oxygen exchange is achieved. It is the heart of a powerful two tiered  innate immune system based upon a  layer of mucus that captures the incoming material that is moved over a bed of cilia. The system is called the muco-ciliary escalator.
Failure of this complex protective system is associated with a wide variety of diseases such as cancer and chronic inflammatory diseases. Biomolecules in mucus are split into two distinct groups, the first group being of globular type proteins between 6 kDa to 200 kDa and the second being of mucins which are large, space-filling glycoconjugates of 200 kDa to 100 MDa, with most of this mass being of carbohydrate in origin. Besides these biomolecules, mucus also contains secreted vesicles (exosomes) with innate immune properties. In chronic inflammatory lung diseases like cystic fibrosis (CF), chronic bronchitis (COPD) and asthma, mucus quantity and quality is altered and it is not efficiently removed from the lungs, causing airway obstruction, impaired gas exchange, bacterial colonization & infection and damage to lung tissue. The long term goal of our laboratory is to understand how this innate immune barrier is dynamically organized around the protective macromolecules under normal and pathological conditions. Currently, research in the Kesimer laboratory is focused on three main fundamentally important areas: 1- How mucins and globular proteins are organized within the airway mucosal barrier and how they are altered in disease pathogenesis, 2- How mucins are processed to mature after granular release for optimal function and how this progression is altered in chronic lung diseases, CF in particular, and 3- The role of extracellular vesicles in the airway mucosal barrier. Our laboratory is established with a wide range of state of the art biochemical, biophysical and proteomics methods including UPLC-Orbitrap mass spectrometry, atomic force microscopy, dynamic and static light scattering, and a variety of surface biophysics tools including QCM-D.

Kieber, Joe email , , , , , publications

Hormones influence virtually every aspect of plant growth and development. My lab is examining the molecular mechanisms controlling the biosynthesis and signal transduction of the phytohormones cytokinin and ethylene, and the roles that these hormones play in various aspects of development. We employ genetic, molecular, biochemical, and genomic approaches using the model species Arabidopsis to elucidate these pathways.

Kim, WIlliam Y email , , , , , publications

Our research explores the role of hypoxia-inducible factor (HIF) in tumorigenesis. HIF is a transcription factor that plays a key role in oxygen sensing, the adaptation to hypoxia and the tumor microenvironment. It is expressed in the majority of solid tumors and correlates with poor clinical outcome. Therefore, HIF is a likely promoter of solid tumor growth and angiogenesis.  Our lab uses mouse models to ask if and how HIF cooperates with other oncogenic events in cancer.  We are currently investigating HIF’s role in the upregulation of circulating tumor cells and circulating endothelial cells.

Kodavanti, Urmila P email , , , , publications

Our research focuses on understanding mechanisms of cardiovascular and metabolic health effects of inhaled air pollutants. Specific emphasis is given to susceptibility variations due to underlying cardiovascular disease, obesity, and diabetes. The roles of genetic versus physiological factors are examined. We use molecular and high throughput genomics, and proteomics techniques to establish a link with disease phenotype and physiological alterations. State-of-the-art EPA inhalation facilities are used for air pollution exposures in animal models with or without genetic predisposition. The role of environment in disease burden is the focus.

Krupenko, Natalia email , , , , , publications

My laboratory is interested in the role of folate and related metabolic pathways in methyl group metabolism, and their involvement in pathogenesis and etiology of diseases. We have recently discovered a novel function of a folate-binding methyltransferase GNMT in the regulation of cellular proliferation, and now study the genetic variations in GNMT and their effects on new function. Our lab is also interested in the cross talk between folate metabolism and sphingolipid pathways as a mediator of folate stress with the goal of exploiting this connection to improve human health.

Laederach, Alain email , , , , , publications

The Laederach Lab is interested in better understanding the relationship between RNA structure and folding and human disease. We use a combination of computational and experimental approaches to study the process of RNA folding and in the cells. In particular, we develop novel approaches to analyze and interpret chemical and enzymatic mapping data on a genomic scale. We aim to fundamentally understand the role of RNA structure in controlling post-transcriptional regulatory mechanisms, and to interpret structure as a secondary layer of information (http://www.nature.com/nature/journal/v505/n7485/full/505621a.html).  We are particularly interested in how human genetic variation affects RNA regulatory structure. We investigate the relationship between disease-associated Single Nucleotide Polymorphisms occurring in Human UTRs and their effect on RNA structure to determine if they form a RiboSNitch.

Lazear, Helen email , , , publications

We use molecular virology approaches and mouse models of infection to understand innate immune mechanisms that control arbovirus pathogenesis (e.g. West Nile, Zika, and La Crosse viruses). Bat flaviviruses have unusual vector/host relationships; understanding the viral and host factors that determine flavivirus host range is important for recognizing potential emerging infections. We are studying the antiviral effects of interferon lambda (IFN-λ) at barrier surfaces, including the blood-brain barrier and the skin. We also use mouse models of atopic dermatitis and herpes simplex virus infection to understand the effects of IFN- λ in the skin. (Accepting rotation students for spring 2016)

Li, Bo email , , , , publications

Our research focuses on the discovery and design of new gene-encoded bioactive small molecules from bacteria.  We are interested in understanding enzymes involved in their biosynthesis, their therapeutic mechanisms of action, and implications in health and diseases, in particular with respect to the human microbiome.  This work is driven by intensive development of new metabolomics and genomics technologies.  We subsequently manipulate and engineer these biosynthetic pathways to make new and improved molecules as potential therapeutics such as antibiotics.

Liu, Jian email , , , publications

The overall goal of our research is to develop an enzyme-based approach to synthesize heparin- and heparan sulfate-like therapeutics.  The lab is currently focusing on improving the anticoagulant efficacy of heparin drug as well as synthesizing heparin-like compounds that inhibit herpes simplex virus infections.  We are also interested in using protein and metabolic engineering approaches for preparing polysaccharides with unique biological functions.

Mack, Christopher P. email , , , , , publications

My research goals are to identify the mechanisms by which environmental factors regulate smooth muscle cell phenotype and to define the transcriptional pathways that regulate SMC-specific gene expression.

Maeda, Nobuyo N. email , , , , , , , publications

Our research is focused on the genetics and molecular pathology of complex multi-factorial conditions in humans – obesity, diabetes, hypercholesterolemia, insulin resistance, and hypertension.  These conditions underlie cardiovascular diseases, including atherosclerosis, the major cause of death and disabilities in North America. Our approach consists of experiments with mice carrying modifications in various genes important for the maintenance of vascular function, antioxidant defense, and metabolism.  We dissect how gene-gene and gene-environment interaction influences the pathogenesis of these common human conditions and their complications.

Magness, Scott email , , , , publications

The primary focus of my research is to understand the genetic mechanisms underlying stem cell maintenance and differentiation with the goal of translating this information into therapeutic strategies. Using a Sox9EGFP mouse model and FACSorting we are able to specifically enrich for single multipotent intestinal epithelial stem cells that are able to generate mini-guts in a culture system. Our studies are now focused on manipulating, in vitro, the genetics of stem cell behavior through viral gene therapeutics and pharmacologic agents. Additionally, we are developing stem cell transplantation and tissue engineering strategies as therapies for inborn genetic disorders as well as damage and disease of the intestine. Using novel animal models and tissue microarrays from human colon cancers, we are investigating the role of Sox-factors in colorectal cancer.

Major, Michael Ben email , , , , , , , , , publications

The overall goal of my lab is to understand how alterations in signal transduction pathways contribute to human cancer.  To that end, a systems level approach is employed wherein functional genomics, mass spectrometry-based proteomics, gene expression and mutation data are integrated.  The resulting cancer-annotated physical/functional map of a signal transduction pathway provides us with a powerful tool for mechanistic discovery in cancer biology.  We are currently working in lymphoma and lung cancer models, with a focus on the Wnt/b-catenin and Keap1/Nrf2 pathways.

Margolis, David email , , , , publications

The overall goal of our laboratory is to obtain new insights into the host-virus interaction, particularly in HIV infection, and translate discoveries in molecular biology and virology to the clinic to aid in the treatment of HIV infection. A subpopulation of HIV-infected lymphocytes is able to avoid viral or immune cytolysis and return to the resting state. Current work focuses on the molecular mechanisms that control the latent reservoir of HIV infection within resting T cells. We have found that cellular transcription factors widely distributed in lymphocytes can remodel chromatin and maintain quiescence of the HIV genome in resting CD4+ lymphocytes. These studies give insight into the basic molecular mechanisms of eukaryotic gene expression, as well as new therapeutic approaches for HIV infection.

Markovic-Plese, Silva email , , , , , publications

My long-term goal is to understand and therapeutically target the key mechanisms of disease development in patients with multiple sclerosis (MS).  Our research has been focused on the molecular events involved in the initiation of the autoimmune response in MS, and on the mechanisms of action of immunomodulatory therapies for this disabling disease.  Current projects in the laboratory include transcriptional and proteomic profiling of the peripheral blood cells and cerebrospinal fluid obtained from patients in the early phase of the disease, which lead to the discovery of the high levels of IL-11 in the CSF and its high up-regulation in the blood-derived CD4+ T-cells in patients with clinically isolated syndrome (CIS) suggestive of MS. Our center is uniquely positioned to perform the proposed research, having an access to the clinical samples through the integrated clinical and cellular/molecular biology research.

Martinez, Jennifer email , , , , , publications

The focus of the work in the Martinez lab is to examine the non-canonical roles for the autophagy machinery during inflammation.  Our recent work about LC3-associated phagocytosis (LAP) higlights the importance of this non-canonical autophagic process in maintaining tolerance and preventing unwanted autoinflammatory pathologies.

Marzluff, William email , , , , , , , , , publications

We are interested in the mechanisms by which histone protein synthesis is coupled to DNA replication, both in mammalian cell cycle and during early embryogenesis in Drosophila, Xenopus and sea urchins.

Matson, Steven email , , , , publications

Research in our laboratory is focused on the enzymatic mechanisms and biological roles of DNA helicases which convert duplex DNA to ssDNA for use as a template in DNA replication and repair or as a substrate in recombination.  Defects in genes encoding DNA helicases have been linked to genomic instability leading to a variety of progeriod disorders and human cancers. Our long-range goal is to understand the mechanism of action of helicases and to define their roles in DNA metabolism. The lab also has an interest in the process of DNA transfer by bacterial conjugation – the unidirectional and horizontal transmission of genetic information from one cell to another. Conjugative DNA transfer plays a role in increasing genetic diversity in addition to propagating the spread of antibiotic resistance and microbial virulence factors. Our long-range goal is to define the function and regulation of the relaxosome, and each protein in this nucleoprotein complex, in conjugative DNA transfer.

McCarthy, Ken email , , , , , publications

Investigating the role of astrocyte signaling in brain function.

McCullough, Shaun D. email , , , , , publications

Dr. McCullough’s lab focuses around the role of the epigenetic elements as both a molecular mechanism mediating the effects of toxic exposures and as a biomarker for predicting susceptible populations and identifying factors that can be used to mitigate adverse health outcomes.  The lab employs a translational research approach to toxicology with an emphasis on molecular biology that uses both advanced in vitro primary cell models and in vivo clinical controlled human exposure studies.

McGinty, Robert email , , , , , publications

The McGinty lab uses structural biology, protein chemistry, biochemistry, and proteomics to study epigenetic signaling through chromatin in health and disease.  Chromatin displays an extraordinary diversity of chemical modifications that choreograph gene expression, DNA replication, and DNA repair – misregeulation of which leads to human diseases, especially cancer. We prepare designer chromatin containing specific combinations of histone post-translational modifications. When paired with X-ray crystallography and cryo-electron microscopy, this allows us to interrogate mechanisms underlying epigenetic signaling at atomic resolution.

McKay, Daniel email , , , , , , publications

Research in the lab focuses on how a single genome gives rise to a variety of cell types and body parts during development. We use Drosophila as a model organism to investigate (1) how transcription factors access DNA to regulate complex patterns of gene expression, and (2) how post-translational modification of histones contributes to maintenance of gene expression programs over time. We combine genomic approaches (e.g. chromatin immunoprecipitation followed by high-throughput sequencing) with Drosophila genetics and transgenesis to address both of these questions. Defects in cell fate specification and maintenance of cell identity often occur in human diseases, including cancer.

Moody, Cary email , , , , publications

The work in my laboratory focuses on the molecular biology of human papillomaviruses (HPV), small DNA viruses that exhibit epithelial tropism. Certain types of HPV are considered the causative agents of cervical cancer and are also associated with cancers of the anus, oropharynx and esophagus.  My lab is interested in defining mechanisms that regulate the productive phase of the HPV life cycle, which is restricted to differentiating epithelia and includes viral genome amplification, late gene expression and virion production. Using various methods of epithelial differentiation, we are studying how HPV proteins modulate cell signaling pathways, including the DNA damage response and apoptosis, to facilitate viral replication, which in turn contributes to viral pathogenesis and possibly transformation. I will be accepting rotation students beginning in the winter of 2010.

Moorman, Nat email , , , , publications

How does a virus gain control over the host cell? My laboratory is interested in answering this question at the molecular level. By combining molecular biology and virology with new technologies (e.g. mass spectrometry, next generation sequencing), we investigate the mechanisms utilized by viruses to hijack infected cells. By understanding the specific function(s) of viral proteins during infection, we identify strategies used by viruses for deregulation of host cell processes. We use this information to characterize novel features of cell signaling pathways during infection, and to identify potential targets for anti-viral therapeutics.

Neher, Saskia email , , , , , publications

Our lab seeks to better understand the maturation and regulation of a group of human lipases.  We aim to uncover how these lipases properly fold and exit the ER, and how their activity is subsequently regulated.  We study the membrane-bound and secreted proteins that play a role in lipase regulation.  Our research can potentially impact human health as biochemical deficiencies in lipase activity can cause hypertriglyceridemia and associated disorders, such as diabetes and atherosclerosis.  We are an interdisciplinary lab and aim to address these questions using a variety of techniques, including membrane protein biochemistry, enzymology, and structural and molecular biology.

Nicholas, Robert A. email , , , , , , publications

My laboratory has two main interests: 1) Regulation of P2Y receptor signaling and trafficking in epithelial cells and platelets. Our laboratory investigates the cellular and molecular mechanisms by which P2Y receptors are differentially targeted to distinct membrane surfaces of polarized epithelial cells and the regulation of P2Y receptor signaling during ADP-promoted platelet aggregation. 2) Antibiotic resistance mechanisms. We investigate the mechanisms of antibiotic resistance in the pathogenic bacterium, Neisseria gonorrhoeae. Our laboratory investigates how acquisition of mutant alleles of existing genes confers resistance to penicillin and cephalosporins. We also study the biosynthesis of the gonococcal Type IV pilus and its contribution to antibiotic resistance.

Nichols, Timothy C. email , publications

My research interests include the role of von Willebrand factor in thrombosis and atherosclerosis. Our current lab work focuses on the molecular biology of porcine von Willebrand factor.

Nimchuk, Zachary email , , , , , , publications

Understanding how cells communicate and co-ordinate during development is a universal question in biology. My lab studies the cell to cell signaling systems that control plant stem cell production.  Plants contain discrete populations of self-renewing stem cells that give rise to the diverse differentiated cell types found throughout the plant.  Stem cell function is therefore ultimately responsible for the aesthetic and economic benefits plants provide us. Stem cell maintenance is controlled by overlapping receptor kinases that sense peptide ligands. Receptor kinase pathways also integrate with hormone signaling in a complex manner to modulate stem cell function.  My lab uses multiple approaches to dissect these networks including; genetics, genomics, CRISPR/Cas9 genome editing, live tissue imaging, and cell biological and biochemical methods.  This integrated approach allows us to gain an understanding of the different levels at which regulatory networks act and how they contribute to changes in form and function during evolution.

Ostrowski, Lawrence E email , , , publications

The overall focus of research in my laboratory is to improve the diagnosis and treatment of airway diseases, especially those that result from impaired mucociliary clearance. In particular, our efforts focus on the diseases cystic fibrosis and primary ciliary dyskinesia, two diseases caused by genetic mutations that impair mucociliary clearance and lead to recurrent lung infections. The work in our laboratory ranges from basic studies of ciliated cells and the proteins that make up the complex structure of the motile cilia, to translational studies of new drugs and gene therapy vectors. We use a number of model systems, including traditional and inducible animal models, in vitro culture of differentiated mouse and human airway epithelial cells, and direct studies of human tissues. We also use a wide range of experimental techniques, from studies of RNA expression and proteomics to measuring ciliary activity in cultured cells and whole animals.

Phanstiel, Doug email , , , , publications

It is estimated that less than 2% of the human genome codes for a functional protein.  Scattered throughout the rest of the genome are regulatory regions that can exert control over genes hundreds of thousands of base pairs away through the formation of DNA loops.  These loops regulate virtually all biological functions but play an especially critical role in cellular differentiation and human development. While this phenomenon has been known for thirty years or more, only a handful of such loops have been functionally characterized.  In our lab we use a combination of cutting edge genomics (in situ Hi-C, ATAC-seq, ChIP-seq), proteomics, genome editing (CRISPR/Cas), and bioinformatics to characterize and functionally interrogate dynamic DNA looping during monocyte differentiation.  We study this process both in both healthy cells and in the context of rheumatoid arthritis and our findings have broad implications for both cell biology as well as the diagnosis and treatment of human disease.

Philpot, Ben email , , , , publications

My lab is driven to understand the neuronal pathologies underlying neurodevelopmental disorders, and to use this information to identify novel therapeutics.  We focus our research on monogenic autism spectrum disorders, including Angelman, Rett, and Pitt-Hopkins syndromes.  We employ a diverse number of techniques including: electrophysiology, molecular biology, biochemistry, mouse engineering, and in vivo imaging.

Purvis, Jeremy email , , , , , publications

We study the behavior of individual cells with a specific focus on “irreversible” cell fate decisions such as apoptosis, senescence, and differentiation. Why do genetically identical cells choose different fates? How much are these decisions controlled by the cell itself and how much is influenced by its environment? We address these questions using a variety of experimental and computational approaches including time-lapse microscopy, single-molecule imaging, computational modeling, and machine learning. Our ultimate goal is to not only understand how cells make decisions under physiological conditions—but to discover how to manipulate these decisions to treat disease.

Qian, Li email , , , , , publications

Our laboratory is interested in developing innovative approaches to regenerate or repair an injured heart. Our goal is to understand the molecular basis of cardiomyocyte specification and maturation and apply this knowledge to improve efficiency and clinical applicability of cellular reprogramming in heart disease. To achieve these goals, we utilize in vivo modeling of cardiac disease in the mouse, including myocardial infarction (MI), cardiac hypertrophy, chronic heart failure and congenital heart disease (CHD). In addition, we take advantage of traditional mouse genetics, cell and molecular biology, biochemistry and newly developed reprogramming technologies (iPSC and iCM) to investigate the fundamental events underlying the progression of various cardiovascular diseases as well as to discover the basic mechanisms of cell reprogramming.

Ramsden, Dale email , , , , , publications

The end joining pathway is a major means for repairing chromosome breaks in vertebrates.  My lab is using cellular and cell-free models to learn how end joining works, and what happens when it doesn’t.

Randell, Scott email , , , , , , , publications

Identification of airway epithelial stem cells; innate immunity in the airway; the pathophysiology of post-lung transplant ischemia reperfusion injury and bronchiolitis obliterans syndrome.

Samulski, Jude email , , , , , publications

We are engaged in studying the molecular biology of the human parvovirus adeno-associated virus (AAV) with the intent to using this virus for developing a novel, safe, and efficient delivery system for human gene therapy.

Sancar, Aziz email , , , , , publications

We have three main areas of research focus: (1) Nucleotide excision repair: The only known mechanism for the removal of bulky DNA adducts in humans. (2) DNA damage checkpoints:  Biochemical pathways that transiently block cell cycle progression while DNA contains damage.  (3) Circadian rhythm:  The oscillations in biochemical, physiological and behavioral processes that occur with the periodicity of about 24 hours.

Searles, Lillie L. email , , publications

My lab is interested in mechanisms that (1) fine tune gene expression and (2) coordinate transcription and RNA processing in eukaryotes. Our work is based on molecular, genetic and biochemical analysis of the suppressor of sable gene of Drosophila.

Sekelsky, Jeff email , , , , publications

Genome instability is a major cause of cancer. We use the model organism Drosophila melanogaster to study maintenance of genome stability, including DNA double-strand break repair, meiotic and mitotic recombination, and characterization of fragile sites in the genome.  Our primary approaches are genetic (forward and reverse, transmission and molecular), but we are also using biochemistry to study protein complexes of interest, genomics to identify fragile sites and understand the regulation of meiotic recombination, fluorescence and electron microscopy for analysis of mutant phenotypes, and cell culture for experiments using RNA interference.

Slep, Kevin email , , , , , , , publications

Our lab examines cytoskeletal dynamics, the molecules that regulate it and the biological processes it is involved in using live cell imaging, in vitro reconstitution and x-ray crystallography.  Of particular interest are the microtubule +TIP proteins that dynamically localize to microtubule plus ends, communicate with the actin network, regulate microtubule dynamics, capture kinetochores and engage the cell cortex under polarity-based cues.

Stafford, Darrel W. email , , , publications

My laboratory at present is working on the vitamin K cycle and vitamin K-dependent proteins.  The enzymes of the vitamin K cycle include, at a minimum two integral membrane proteins, both of which were purified and cloned by my laboratory.  One, the vitamin K epoxide reductase is the target of warfarin for which 40 million prescriptions are written each year in the US alone.  Polymorphisms in this gene are the best example to date of the use of genomics in molecular medicine.  We are also interested in purifying any additional components of this cycle and trying to understand the ~50% of patients whose genotype is not informative about warfarin dose.  In addition, we are interested in the mechanism of how factor VIIa works and the role of the extracellular matrix in coagulation.

Strahl, Brian D. email , , , , , publications

Our laboratory is examining the role of histone post-translational modifications in chromatin structure and function.  Using a combination of molecular biology, genetics and biochemistry, we are determining how a number of modifications to the histone tails (e.g. acetylation, phosphorylation, methylation and ubiquitylation) contribute to the control of gene transcription, DNA repair and replication.

Su, Lishan email , , , , , , , publications

Major areas of research: 1) HIV-1 Virology, Immuno-Pathology and Immuno-Therapy, 2) HBV Virology, Immuno-Pathology and Immuno-Therapy, 3) Novel Immune Therapeutics Including Adjuvants and Vaccines, and 4) Humanized Mouse Models of Human Liver and Immune System.  My laboratory studies both virology and immunology of HIV-1 and HBV persistent infection.  We focus on defining viral factors that counteract host innate anti-viral immunity.  We have also developed humanized mouse models to study human immuno-pathology of chronic HIV-1 and HBV infection in vivo.  We investigate how human immune cells are dysregulated and contribute to diseases during HIV-1 and HBV persistent infection.  We are currently focused on the HIV-1/pDC/IFN-I axis that plays a critical role in HIV-1 persistence and AIDS, and on the HBV/Macrophage interaction in liver diseases.  In addition, we are developing novel immune modulatory therapeutics including antibodies, adjuvants and vaccines.

Su, Maureen A email , , , publications

Our lab is interested in understanding the genetics of autoimmunity using both mouse models and patient samples. Our work is highly translational and aims to have direct relevance to human disease. One of our approaches is to study rare Mendelian autoimmunity syndromes in order to determine the contributions of a particular gene to developing autoimmunity. We have focused on Autoimmune Polyendocrinopathy Syndrome Type 1 (APS1 or APECED), a rare condition due to mutations in the Autoimmune Regulator (Aire) gene. We are interested in how Aire promotes tolerance and have utilized both APS1 mouse models and patient samples to study this disease. We are also interested in understanding how dysregulation of the immune system results in Type 1 Diabetes Mellitus, an autoimmune disease in which beta cells in pancreatic islets are destroyed. We are primarily using patient samples to study how the balance of suppressor of effector arms of the immune system become dysregulated.

Swanstrom, Ronald email , , , , , , publications

First, we study the complex HIV-1 population that exists within a person.  We use this complexity to ask questions about viral evolution, transmission, compartmentalization, and pathogenesis.  Second, we are exploring the impact of drug resistance on viral fitness and identifying new drug targets in the viral protein processing pathway.  Third, we participate in a collaborative effort to develop an HIV-1 vaccine.  Fourth, we are using mutagenesis to determine the role of RNA secondary structure in viral replication.

Tamayo, Rita email , , , , publications

Our lab studies the mechanisms facultative pathogens use to adapt to disparate and changing extracellular conditions. Our primary interest is in the ability of Vibrio cholerae, the causative agent of cholera, to persist in its native aquatic environment and also flourish in the host intestinal tract. We are addressing key questions about the role of cyclic diguanylate, a signaling molecule unique to and ubiquitous in bacteria, in the physiological adaptations of V. cholerae as it transits from the aquatic environment into a host. In addition, we are identifying and characterizing factors produced by V. cholerae during growth in a biofilm, a determinant of survival in aquatic environments, that contribute to virulence.  I will be accepting rotation students beginning in the winter of 2009.

Tarantino, Lisa M. email , , , , , , , , publications

The Tarantino lab studies addiction and anxiety-related behaviors in mouse models using forward genetic approaches. We are currently studying a chemically-induced mutation in a splice donor site that results in increased novelty- and cocaine-induced locomotor activity and prolonged stress response. We are using RNA-seq to identify splice variants in the brain that differ between mutant and wildtype animals. We are also using measures of initial sensitivity to cocaine in dozens of inbred mouse strains to understand the genetics, biology and pharmacokinetics of acute cocaine response and how initial sensitivity might be related to addiction. Finally, we have just started a project aimed at studying the effects of perinatal exposure to dietary deficiencies on anxiety, depression and stress behaviors in adult offspring. This study utilizes RNA-seq and a unique breeding design to identify parent of origin effects on behavior and gene expression in response to perinatal diet.

Ting, Jenny email , , , , , , , , , , publications

Topics include gene discovery, genomics/proteomics, gene transcription, signal transduction, molecular immunology.  Disease relevant issues include infectious diseases, autoimmune and demyelinating disorders, cancer chemotherapy, gene linkage.

Vaziri, Cyrus email , , , , , , publications

Our broad long-term goal is to understand how mammalian cells maintain ordered control of DNA replication during normal passage through an unperturbed cell cycle, and in response to genotoxins (DNA-damaging agents).  DNA synthesis is a fundamental process for normal growth and development and accurate replication of DNA is crucial for maintenance of genomic stability.  Many cancers display defects in regulation of DNA synthesis and it is important to understand the molecular basis for aberrant DNA replication in tumors.  Moreover, since many chemotherapies specifically target cells in S-phase, a more detailed understanding of DNA replication could allow the rational design of novel cancer therapeutics.  Our lab focuses on three main aspects of DNA replication control:  (1) The S-phase checkpoint, (2) Trans-Lesion Synthesis (TLS) and (3) Re-replication.

Wan, Yisong email , , , , publications

We are a molecular genetics laboratory studying immune functions by using mouse models. The focus of our research is to investigate the molecular mechanisms of immune responses under normal and pathological conditions. Our goal is to find therapies for various human immune disorders, such as autoimmunity (type 1 diabetes and multiple sclerosis), tumor and cancer, and inflammatory diseases (inflammatory bowel disease, asthma and arthritis).

Wang, Greg Gang email , , , , , publications

With an emphasis on chromatin biology and cancer epigenetics, our group focuses on mechanistic understandings of how chemical modifications of chromatin define distinct patterns of human genome, control gene expression, and regulate cell proliferation versus differentiation during development, and how their deregulations lead to oncogenesis. Multiple on-going projects employ modern biological technologies to: 1) biochemically isolate and characterize novel factors that bind to histone methylation on chromatin, 2) examine the role of epigenetic factors (chromatin-modifying enzymes and chromatin-associated factors) during development and tumorigenesis using mouse knockout models, 3) analyze epigenomic and transcriptome alternation in cancer versus normal cells utilizing next-generation sequencing technologies, 4) identify novel oncogenic or tumor suppressor genes associated with leukemia and lymphoma using shRNA library-based screening. We are also working together with UNC Center of Drug Discovery to develop small-molecule inhibitors for chromatin-associated factors as novel targeted cancer therapies.

Webster-Cyriaque, Jennifer email , , publications

A goal of the laboratory is to understand viral molecular pathogenesis in the oral cavity. We seek to understand the critical molecular interactions that occur between DNA viruses and the host that govern the development of oral disease.

Weiss, Ellen email , , , , , , publications

The vertebrate retina is an extension of the central nervous system that controls visual signaling and circadian rhythm.  Our laboratory is interested in how the retina adapts to changing light intensities in the natural environment.  We are presently studying the regulation of 2 G protein-coupled receptor kinases, GRK1 and GRK7, that participate in signal termination in the light-detecting cells of the retina, the rods and cones.  Signal termination helps these cells recover from light exposure and adapt to continually changing light intensities.  Recently, we determined that GRK1 and GRK7 are phosphorylated by cAMP-dependent protein kinase (PKA).  Since cAMP levels are regulated by light in the retina, phosphorylation by PKA may be important in recovery and adaptation.  Biochemical and molecular approaches are used in 2 model organisms, mouse and zebrafish, to address the role of PKA in retina function. Keywords:  cAMP, cone, G protein-coupled receptor, GPCR, GRK, kinase, neurobiology, opsin, PKA, retina, rhodopsin rod, second messenger, signal transduction, vision.

Weissman, Bernard E. email , , , , , publications

How the loss of different components of the SWI/SNF complex contributes to neoplastic transformation remains an open and important question. My laboratory concentrates on addressing this question by the combined use of biological, biochemical and mouse models for SWI/SNF complex function.

Willis, Monte S. email , , , , publications

We are looking for talented and motivated individuals to join our research team. Dr. Willis’s lab investigates the molecular basis of genetic and lifestyle mediated cardiomyopathic disease (heart failure) using bioinformatics, molecular, and animal model approaches. We are seeking graduate students looking for an exciting and supportive research environment offering a diversity of experiences integrating cardiac phenotyping, mouse models of disease, molecular biology, and ubiquitin proteasome biology. Both national and international training experiences supported by the Leducq Foundation (http://fondationleducq.org/network/proteotoxicity-an-unappreciated-mechanism-of-heart-disease-and-its-potential-for-novel-therapeutics/) are possible,  depending on citizenship and interest in travel.

Wilson, Elizabeth M email , , , , , publications

Our research focus is on mechanisms of action of the androgen receptor (AR), a ligand-dependent transcriptional regulatory protein that mediates the effects of testosterone and dihydrotestosterone. Studies seek to identify and characterize AR coregulatory proteins and their regulation by phosphorylation and the cell cycle. Areas of interest include male sex development, the androgen insensitivity syndrome, and AR action in the ovary, endometrium and prostate cancer. Melanoma antigen gene protein-11 (MAGE-11) was identified as an AR coregulatory protein that belongs to the MAGE gene family of cancer-germline antigens. The MAGE-11 gene is located on the human X chromosome and is exclusively expressed in human and nonhuman primates, providing a gain-of- function to AR. Mechanisms whereby MAGE-11 regulates AR transcriptional activity through its interaction with the AR NH2-terminal FXXLF motif and cell cycle regulatory proteins are being investigated. Our objective is to understand how AR regulates gene transcription and cell proliferation in the human male and female reproductive tracts.  Keywords:  androgen receptor, MAGE-11, male reproduction, female reproduction, prostate cancer, transcription regulation, FXXLF motifs

Wolfgang, Matthew C. email , , , , , publications

Pseudomonas aeruginosa is a Gram-negative opportunistic pathogen responsible for a variety of diseases in individuals with compromised immune function. Dr. Wolfgang’s research focuses on the pathogenesis of Pseudomonas aeruginosa infection.  The goal of his research is to understand how this opportunistic pathogen coordinates the expression of virulence factors in response to the host environment. Projects in his laboratory focus on the regulation of intracellular cyclic AMP, a second messenger signaling molecule that regulates P. aeruginosa virulence. Dr. Wolfgang’s laboratory uses a combination of molecular genetics and biochemical approaches to understand how P. aeruginosa controls the synthesis, degradation and transport of cAMP in response to extracellular cues. Other related projects focus on the regulation and function of P. aeruginosa Type IV pili (TFP). TFP are cAMP regulated surface organelles that are critical for bacterial colonization of human mucosal tissue. In addition, the Wolfgang lab is actively involved in characterizing the lung microbiome of patients with chronic airway diseases and studying the interactions between P. aeruginosa and other bacterial species during mixed infections.

Wright, J. Timothy email , , , , publications

The Wright laboratory research is focused primarily on defining the phenotype and genotype relationships in a variety of craniofacial conditions such as amelogenesis and dentinogenesis imperfecta, ectodermal dysplasias, and the tricho-dento-osseous syndrome.  This is accomplished through a combination of human gene discovery approaches, the use of transgenic mice, and cell culture systems to explore mechanisms that explain genotype-phenotype relationships.  His most recent research includes investigation of the molecular controls of tooth formation as well as gene expression in tumorigenesis involving  odontogenic tumors such as ameloblastomas and keratocystic odontogenic tumors.

Xiong, Yue email , , , , , publications

Using genetic, cell biology, biochemical and proteomic approaches to determine the function and mechanism of – (1) CDK inhibitors in development and tumor suppression, (2) the p53 degradation and transport, and (3) RING family of ubiquitin ligases.

Zhang, Qing email , , , , , publications

The oxygen-sensing pathway contributes largely to the development of tumors. One of the central players in this pathway is prolyl hydroxylase (EglN1, 2 and 3). Our lab currently studies hypoxia signaling, prolyl hydroxylase and cancer, specifically breast and renal cell carcinoma. One project focuses on using proteomic and genomic approaches to screen for novel prolyl hydroxylase substrates that play important roles in cancer. The other project involves integrating CHIP-seq strategy with gene expression profiling in order to identify EglN2 prolyl hydroxylase and hypoxia inducible factor (HIF) targets in the malignant diseases. The ultimate goal is to understand mechanistically how oxygen-sensing pathways contribute to cancer progression, which will facilitate our design of efficient treatment strategies to specifically target cancer.

Zhang, Yanping email , , , , , publications

We employ modern technologies – genomics, proteomics, mouse models, multi-color digital imaging, etc. to study cancer mechanisms. We have made major contributions to our understanding of the tumor suppressor ARF and p53 and the oncoprotein Mdm2.

Zylka, Mark J. email , , , , , , , publications

Our research is focused on two general areas:  1. Autism and 2. Pain.  Our autism research is focused on topoisomerases and other transcriptional regulators that were recently linked to autism.  We use genome-wide approaches to better understand how these transcriptional regulators affect gene expression in developing and adult neurons (such as RNA-seq, ChIP-seq, Crispr/Cas9 for knocking out genes).  We also assess how synaptic function is affected, using calcium imaging and electrophysiology.   In addition, we are performing a large RNA-seq screen to identify chemicals and drugs that increase risk for autism.   /  / Our pain research is focused on lipid kinases that regulate pain signaling and sensitization.  This includes work with cultured dorsal root ganglia (DRG) neurons, molecular biology and behavioral models of chronic pain.  We also are working on drug discovery projects, with an eye towards developing new therapeutics for chronic pain.