Eric Poeschla

Last updated
Eric Murnane Poeschla
Alma materYale School of Medicine
University of California, San Francisco
Scientific career
FieldsVirology
InstitutionsUniversity of Colorado Denver

Eric Murnane Poeschla is an American infectious disease physician, virologist, and innate immunologist.

Contents

Education

Poeschla graduated from the Yale School of Medicine in 1985 and completed his residency in internal medicine at the University of California, San Francisco School of Medicine in 1988, which was followed by a year of tropical medicine training in Papua New Guinea. [1]

Career

Poeschla was the project physician for the 1990 Vanderbilt University Petexbatun Maya Archaeology Expedition in Dos Pilas, Guatemala. [2] After infectious disease fellowship and post-doctoral training in virology at the University of California, San Diego School of Medicine, he joined the Mayo Clinic College of Medicine in 1999, where he was Professor of Molecular Medicine and directed research focused on the HIV life cycle.

Since 2014, Poeschla has been Professor of Medicine and Chief of the Infectious Diseases Division at the University of Colorado School of Medicine, where he also holds the Tim Gill Endowed Chair in HIV Research and has helped direct the institutional response to the COVID-19 pandemic. [3] [4] [5] Poeschla was elected to the Association of American Physicians (AAP) in 2016. He lives in Denver.

Research

Poeschla's laboratory is interested in how viruses interact with, use, or evade cellular proteins as they replicate, as well as innate immunity, and viral emergence. Early work determined how FIV, the feline HIV-like virus, carries out its life cycle. It also established FIV-based lentiviral vectors. [6] [7]

Subsequent research included contributions to identifying the role of a cellular protein (LEDGF) in the chromosomal attachment and integration step of HIV, and investigations of other cellular factors that regulate the HIV life cycle. [8] [9] [10] [11] [12] More recent studies have further concerned cellular innate immune defenses to other RNA viruses as well. The laboratory uses picornavirus RNA polymerase-transgenic mouse models to investigate Interferon-stimulated gene (ISG) responses triggered by viral double-stranded RNA via the sensor MDA5. [13] [14] [15]

In 2020, a restriction to primate lentiviruses (HIV and related simian viruses) was reported in cells of large bats. [16]


Related Research Articles

<i>Feline immunodeficiency virus</i> Species of virus

Feline immunodeficiency virus (FIV) is a Lentivirus that affects cats worldwide, with 2.5% to 4.4% of felines being infected.

<span class="mw-page-title-main">Viral infectivity factor</span> Protein found in lentiviruses

Viral infectivity factor, or Vif, is an accessory protein found in HIV and other lentiviruses. Its role is to disrupt the antiviral activity of the human enzyme APOBEC by targeting it for ubiquitination and cellular degradation. APOBEC is a cytidine deaminase enzyme that mutates viral nucleic acids.

<span class="mw-page-title-main">RELB</span> Protein-coding gene in the species Homo sapiens

Transcription factor RelB is a protein that in humans is encoded by the RELB gene.

<span class="mw-page-title-main">POLR2K</span> Protein-coding gene in the species Homo sapiens

DNA-directed RNA polymerases I, II, and III subunit RPABC4 is a protein that in humans is encoded by the POLR2K gene.

<span class="mw-page-title-main">Cyclin B2</span> Protein-coding gene in the species Homo sapiens

G2/mitotic-specific cyclin-B2 is a protein that in humans is encoded by the CCNB2 gene.

<span class="mw-page-title-main">CXCR6</span>

C-X-C chemokine receptor type 6 is a protein that in humans is encoded by the CXCR6 gene. CXCR6 has also recently been designated CD186.

<span class="mw-page-title-main">IFNA7</span> Protein-coding gene in the species Homo sapiens

Interferon alpha-7 is a protein that in humans is encoded by the IFNA7 gene.

<span class="mw-page-title-main">Vpu protein</span>

Vpu is an accessory protein that in HIV is encoded by the vpu gene. Vpu stands for "Viral Protein U". The Vpu protein acts in the degradation of CD4 in the endoplasmic reticulum and in the enhancement of virion release from the plasma membrane of infected cells. Vpu induces the degradation of the CD4 viral receptor and therefore participates in the general downregulation of CD4 expression during the course of HIV infection. Vpu-mediated CD4 degradation is thought to prevent CD4-Env binding in the endoplasmic reticulum to facilitate proper Env assembly into virions. It is found in the membranes of infected cells, but not the virus particles themselves.

<span class="mw-page-title-main">NS5A (hepacivirus)</span>

Nonstructural protein 5A (NS5A) is a zinc-binding and proline-rich hydrophilic phosphoprotein that plays a key role in Hepatitis C virus RNA replication. It appears to be a dimeric form without trans-membrane helices.

<span class="mw-page-title-main">Rev (HIV)</span> HIV-1 regulating protein

Rev is a transactivating protein that is essential to the regulation of HIV-1 protein expression. A nuclear localization signal is encoded in the rev gene, which allows the Rev protein to be localized to the nucleus, where it is involved in the export of unspliced and incompletely spliced mRNAs. In the absence of Rev, mRNAs of the HIV-1 late (structural) genes are retained in the nucleus, preventing their translation.

2F5 is a broadly neutralizing human monoclonal antibody (mAb) that has been shown to bind to and neutralize HIV-1 in vitro, making it a potential candidate for use in vaccine synthesis. 2F5 recognizes an epitope in the membrane-proximal external region (MPER) of HIV-1 gp41. 2F5 then binds to this epitope and its constant region interacts with the viral lipid membrane, which neutralizes the virus.

Feline coronavirus (FCoV) is a positive-stranded RNA virus that infects cats worldwide. It is a coronavirus of the species Alphacoronavirus 1 which includes canine coronavirus (CCoV) and porcine transmissible gastroenteritis coronavirus (TGEV). It has two different forms: feline enteric coronavirus (FECV) that infects the intestines and feline infectious peritonitis virus (FIPV) that causes the disease feline infectious peritonitis (FIP).

<span class="mw-page-title-main">Janice E. Clements</span> American biologist, academic and medical researcher

Janice Ellen Clements is vice dean for faculty at the Johns Hopkins School of Medicine and the Mary Wallace Stanton Professor of Faculty Affairs. She is a professor in the departments of Molecular and Comparative Pathobiology, Neurology, and Pathology, and has a joint appointment in molecular biology and genetics. Her molecular biology and virology research examines lentiviruses and how they cause neurological diseases.

Thumbi Ndung’u is a Kenyan-born HIV/AIDS researcher. He is the deputy director (Science) and a Max Planck Research Group Leader at the Africa Health Research Institute (AHRI) in Durban, South Africa. He is Professor of Infectious Diseases in the Division of Immunity and Infection, University College London. He is Professor and Victor Daitz Chair in HIV/TB Research and Scientific Director of the HIV Pathogenesis Programme (HPP) at the Nelson R. Mandela School of Medicine, University of KwaZulu-Natal. He holds the South African Research Chair in Systems Biology of HIV/AIDS. He is an Adjunct Professor of Immunology and Infectious Diseases at the Harvard T.H. Chan School of Public Health. He is the Programme Director of the Sub-Saharan African Network for TB/HIV Research Excellence (SANTHE), a research and capacity building initiative funded by the African Academy of Sciences and the Wellcome Trust.

Christine Clouser is an American virologist. During her graduate studies she discovered an interest in retro viruses and has since published scientific articles on the feline leukemia virus and HIV virus.

M. Juliana “Julie” McElrath is a senior vice president and director of the vaccine and infectious disease division at Fred Hutchinson Cancer Research Center and the principal investigator of the HIV Vaccine Trials Network Laboratory Center in Seattle, Washington. She is also a professor at the University of Washington.

<span class="mw-page-title-main">Susan Zolla-Pazner</span> American research scientist

Susan Zolla-Pazner is an American research scientist who is a Professor of Medicine in the Division of Infectious Diseases and the Department of Microbiology at Mount Sinai School of Medicine and a guest investigator in the Laboratory of Molecular Immunology at The Rockefeller University, both in New York City. Zolla-Pazner's work has focused on how the immune system responds to the human immunodeficiency virus (HIV) and, in particular, how antibodies against the viral envelope develop in the course of infection.

<span class="mw-page-title-main">Sharon Lewin</span>

Sharon Ruth Lewin, FRACP, FAHMS is the inaugural Director of the Peter Doherty Institute for Infection and Immunity. She is also a Professor of Medicine at The University of Melbourne and a National Health and Medical Research Council (NHMRC) Practitioner Fellow. As an infectious diseases physician and basic scientist, her laboratory focuses on basic, translational and clinical research aimed at finding a cure for HIV and understanding the interaction between HIV and hepatitis B virus. Her laboratory is funded by the NHMRC, the National Institutes of Health, The Wellcome Trust, the American Foundation for AIDS Research and multiple commercial partnerships. She is also the Chief Investigator of a NHMRC Centre of Research Excellence (CRE), The Australian Partnership for Preparedness Research on Infectious Diseases Emergencies (APPRISE) that aims to bring together Australia’s leading experts in clinical, laboratory and public health research to address the key components required for a rapid and effective emergency response to infectious diseases.

<span class="mw-page-title-main">Coronavirus diseases</span> List of Coronavirus diseases

Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold, while more lethal varieties can cause SARS, MERS and COVID-19. As of 2021, 45 species are registered as coronaviruses, whilst 11 diseases have been identified, as listed below.

A therapeutic interfering particle is an antiviral preparation that reduces the replication rate and pathogenesis of a particular viral infectious disease. A therapeutic interfering particle is typically a biological agent (i.e., nucleic acid) engineered from portions of the viral genome being targeted. Similar to Defective Interfering Particles (DIPs), the agent competes with the pathogen within an infected cell for critical viral replication resources, reducing the viral replication rate and resulting in reduced pathogenesis. But, in contrast to DIPs, TIPs are engineered to have an in vivo basic reproductive ratio (R0) that is greater than 1 (R0>1). The term "TIP" was first introduced in 2011 based on models of its mechanism-of-action from 2003. Given their unique R0>1 mechanism of action, TIPs exhibit high barriers to the evolution of antiviral resistance and are predicted to be resistance proof. Intervention with therapeutic interfering particles can be prophylactic (to prevent or ameliorate the effects of a future infection), or a single-administration therapeutic (to fight a disease that has already occurred, such as HIV or COVID-19). Synthetic DIPs that rely on stimulating innate antiviral immune responses (i.e., interferon) were proposed for influenza in 2008 and shown to protect mice to differing extents but are technically distinct from TIPs due to their alternate molecular mechanism of action which has not been predicted to have a similarly high barrier to resistance. Subsequent work tested the pre-clinical efficacy of TIPs against HIV, a synthetic DIP for SARS-CoV-2 (in vitro), and a TIP for SARS-CoV-2 (in vivo).

References

  1. "Kundiawa General Hospital". PNG Health Watch. Retrieved 2021-10-29.
  2. Lost City of the Maya Documentary , retrieved 2021-10-29
  3. "Poeschla named head of Division of Infectious Diseases". University of Colorado. August 21, 2014. Retrieved November 25, 2018.
  4. "Eric Poeschla, M.D". University of Colorado Denver. 2014. Retrieved November 25, 2018.
  5. "Eric M Poeschla's research" . Retrieved November 25, 2018.
  6. Poeschla, E. M.; Wong-Staal, F.; Looney, D. J. (1998). "Efficient transduction of nondividing human cells by feline immunodeficiency virus lentiviral vectors". Nature Medicine. 4 (3): 354–357. doi:10.1038/nm0398-354. ISSN   1078-8956. PMID   9500613. S2CID   6624732 via Pubmed.
  7. Poeschla, E. M.; Looney, D. J. (1998). "CXCR4 is required by a nonprimate lentivirus: heterologous expression of feline immunodeficiency virus in human, rodent, and feline cells". Journal of Virology. 72 (8): 6858–6866. doi:10.1128/JVI.72.8.6858-6866.1998. ISSN   0022-538X. PMC   109895 . PMID   9658135.
  8. Llano, Manuel; Saenz, Dyana T.; Meehan, Anne; Wongthida, Phonphimon; Peretz, Mary; Walker, William H.; Teo, Wulin; Poeschla, Eric M. (2006-10-20). "An essential role for LEDGF/p75 in HIV integration". Science. 314 (5798): 461–464. Bibcode:2006Sci...314..461L. doi:10.1126/science.1132319. ISSN   1095-9203. PMID   16959972. S2CID   24756699.
  9. Kumar, Swati; Morrison, James H.; Dingli, David; Poeschla, Eric (2018-08-15). "HIV-1 Activation of Innate Immunity Depends Strongly on the Intracellular Level of TREX1 and Sensing of Incomplete Reverse Transcription Products". Journal of Virology. 92 (16): e00001–18. doi:10.1128/JVI.00001-18. ISSN   1098-5514. PMC   6069178 . PMID   29769349.
  10. Fadel, Hind J.; Morrison, James H.; Saenz, Dyana T.; Fuchs, James R.; Kvaratskhelia, Mamuka; Ekker, Stephen C.; Poeschla, Eric M. (2014-09-01). "TALEN knockout of the PSIP1 gene in human cells: analyses of HIV-1 replication and allosteric integrase inhibitor mechanism". Journal of Virology. 88 (17): 9704–9717. doi:10.1128/JVI.01397-14. ISSN   1098-5514. PMC   4136317 . PMID   24942577.
  11. Meehan, Anne M.; Saenz, Dyana T.; Guevera, Rebekah; Morrison, James H.; Peretz, Mary; Fadel, Hind J.; Hamada, Masakazu; van Deursen, Jan; Poeschla, Eric M. (2014). "A cyclophilin homology domain-independent role for Nup358 in HIV-1 infection". PLOS Pathogens. 10 (2): e1003969. doi:10.1371/journal.ppat.1003969. ISSN   1553-7374. PMC   3930637 . PMID   24586169.
  12. Morrison, James H.; Guevara, Rebekah B.; Marcano, Adriana C.; Saenz, Dyana T.; Fadel, Hind J.; Rogstad, Daniel K.; Poeschla, Eric M. (2014). "Feline immunodeficiency virus envelope glycoproteins antagonize tetherin through a distinctive mechanism that requires virion incorporation". Journal of Virology. 88 (6): 3255–3272. doi:10.1128/JVI.03814-13. ISSN   1098-5514. PMC   3957917 . PMID   24390322.
  13. Miller, Caitlin M.; Barrett, Bradley S.; Chen, Jianfang; Morrison, James H.; Radomile, Caleb; Santiago, Mario L.; Poeschla, Eric M. (2020-04-16). "Systemic Expression of a Viral RdRP Protects against Retrovirus Infection and Disease". Journal of Virology. 94 (9): e00071–20. doi:10.1128/JVI.00071-20. ISSN   1098-5514. PMC   7163129 . PMID   32051266.
  14. Bankers, Laura; Miller, Caitlin; Liu, Guoqi; Thongkittidilok, Chommanart; Morrison, James; Poeschla, Eric M. (2020-05-15). "Development of IFN-Stimulated Gene Expression from Embryogenesis through Adulthood, with and without Constitutive MDA5 Pathway Activation". Journal of Immunology. 204 (10): 2791–2807. doi:10.4049/jimmunol.1901421. ISSN   1550-6606. PMC   7326337 . PMID   32277054.
  15. Painter, Meghan M.; Morrison, James H.; Zoecklein, Laurie J.; Rinkoski, Tommy A.; Watzlawik, Jens O.; Papke, Louisa M.; Warrington, Arthur E.; Bieber, Allan J.; Matchett, William E.; Poeschla, Eric M.; Rodriguez, Moses (2015). "Antiviral Protection via RdRP-Mediated Stable Activation of Innate Immunity". PLOS Pathogens. 11 (12): e1005311. doi:10.1371/journal.ppat.1005311. ISSN   1553-7374. PMC   4669089 . PMID   26633895.
  16. Morrison, James H.; Miller, Caitlin; Bankers, Laura; Crameri, Gary; Wang, Lin-Fa; Poeschla, Eric M. (2020-09-15). "A Potent Postentry Restriction to Primate Lentiviruses in a Yinpterochiropteran Bat". mBio. 11 (5): e01854–20. doi:10.1128/mBio.01854-20. ISSN   2150-7511. PMC   7492736 . PMID   32934084.