Research Interest: Evolutionary Biology
| Name | PhD Program | Research Interest | Publications |
|---|---|---|
| Jenson, Justin WEBSITE PUBLICATIONS |
PHD PROGRAM RESEARCH INTEREST |
Our lab studies molecular interactions between bacteria and the viruses that infect them, called phage. For billions of years, phage and bacteria have been locked in a ‘molecular arms race’. To survive, bacteria have evolved many immune systems to protect against infection and, in response, phage have counter-adapted to evade these defenses. Our lab is interested in 1) understanding how these systems work biochemically and structurally and 2) discovering new factors involved in this ‘molecular arms race’. We are particularly interested in systems that share homology with human immune factors. |
| Pappas, Matt |
PHD PROGRAM RESEARCH INTEREST |
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| Dorofi, Sidra |
PHD PROGRAM RESEARCH INTEREST |
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| Anderson, Ashlyn (Ash) |
PHD PROGRAM RESEARCH INTEREST |
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| Schrank, Travis PUBLICATIONS |
PHD PROGRAM RESEARCH INTEREST |
I am a surgeon-scientist specialized in head and neck cancers. My goal is to address translationalquestions with genomic data and bioinformatic methods, as well as benchtop experimentation. My clinical practice as a head and neck cancer surgeon also influences my research by helping me seek solutions to problems that will directly inform gaps in the current treatment protocols. I have developed a strong interest in HPV genomics as well as HPV/host genome integrations, as these factors are intrinsically related to transcriptional diversity and patient outcomes in HPV-associated head and neck cancers. Our work has helped to demonstrate that a novel mechanism of HPV-mediated oncogenesis requiring NF-kB activation is present in nearly 50% of oropharyngeal tumors. In this vein, we are aggressively investigating the cellular interplay between the NF-kB pathway and persistent HPV infection, tumor radiation response, NRF2 signaling, and more. Another outgrowth of this work has been investigating APOBEC3B and its non-canonical roles in regulating transcription. Our preliminary work has demonstrated that APOBEC3B has surprisingly strong transcriptional effects in HPV+ HNSCC cells and may promote oncogenesis and tumor maintenance by suppressing the innate immune response and influencing the HPV viral lifecycle. Our group also have a strong interest in translational genomic studies. Our group is working to develop methods that will make gene expression-based biomarkers more successful in the clinic, as well as studying many aspects of genomic alterations that contribute to the development of squamous cell carcinomas. |
| Liu, Qingyun WEBSITE PUBLICATIONS |
PHD PROGRAM RESEARCH INTEREST |
Infectious diseases due to highly pathogenic microbes continue to pose a persistent and evolving threat to humans. In this laboratory, we study the evolutionary mechanisms underlying drug resistance and transmissibility in bacterial pathogens, including Mycobacterium tuberculosis and Mycobacterium abscessus, among others. |
| Johri, Parul WEBSITE PUBLICATIONS |
PHD PROGRAM RESEARCH INTEREST |
Our research interests broadly span population genetics, statistical inference, and evolutionary genomics. We are interested in how evolutionary processes like changes in population size, recombination, mutation, selection and factors such as genome architecture shape patterns of genomic variation. Work in the lab involves employing computational and theoretical approaches, statistical method development, or using an empirical approach to perform evolutionary inference and ask fundamental questions in population genetics. |
| Parr, Jonathan WEBSITE PUBLICATIONS |
PHD PROGRAM RESEARCH INTEREST |
Dr. Parr’s research focuses on the infectious diseases of poverty, with translational projects in the Democratic Republic of the Congo (DRC) and other sites. His research concentrates on the molecular epidemiology of malaria and the evolution of “diagnostic-resistant” strains of Plasmodium falciparum, in particular. As a founding member of a World Health Organization laboratory network, he collaborates with malaria control programs and ministries of health to support surveillance of these parasites across Africa. His recent work in Ethiopia uncovered genetic signatures of strong positive selection favoring parasites with pfhrp2 gene deletion and influenced malaria diagnostic and surveillance policy in the Horn of Africa. Dr. Parr has recently expanded his research program to include studies of other diseases that disproportionately impact marginalized populations worldwide, including viral hepatitis and syphilis, and serves as the director of the genomics core for a large NIH-funded syphilis vaccine development project that spans sites in Malawi, Columbia, China, North Carolina, and the Czech Republic. Rotating students can expect to undertake translational projects that apply cutting-edge methodologies to real-world problems. Examples include application of novel enrichment methods that enable pathogen genomic sequencing from challenging field samples, development of CRISPR-based diagnostic assays, and evaluation of how infectious disease interventions affect pathogen population structure. Trainees will interact with diverse investigators and benefit from a highly collegial training environment in the Infectious Disease Epidemiology and Ecology Lab. Dr. Parr continues to attend on the infectious disease inpatient services at UNC Medical Center and, in response to the pandemic, co-directed the UNC division of infectious diseases’ inpatient COVID-19 services. He also serves as Associate Editor for global health for Healthcare: The Journal of Delivery Science and Innovation. Dr. Parr and his work have been featured in the New York Times, Washington Post, CNN, and other media outlets. |
| Joseph, Sarah B. PUBLICATIONS |
PHD PROGRAM RESEARCH INTEREST |
We use studies of HIV/SIV evolution to reveal information about viral dynamics in vivo. This typically involves genetic and/or phenotypic analyses of viral populations in samples from HIV-infected humans or SIV-infected nonhuman primates (NHPs). We are currently exploring the mechanisms that contribute to neurocognitive impairment in HIV-infected people by sequencing viral populations in the CNS of humans and NHPs not on antiretroviral therapy. We are also using these approaches to examine viral populations that persist during long-term antiretroviral therapy in an effort to better understand the viral reservoirs that must be targeted in order to cure HIV-infected people. |
| Matute, Daniel WEBSITE PUBLICATIONS |
PHD PROGRAM RESEARCH INTEREST |
My research program studies how species form. We use a combination of approaches that range from field biology, behavior, and computational biology. |