Spyridon Stavrou PhD

Spyridon Stavrou

Spyridon Stavrou
PhD

Assistant Professor

Department of Microbiology and Immunology

Jacobs School of Medicine & Biomedical Sciences


Specialty/Research Focus

Infectious Disease; Molecular and Cellular Biology; Transgenic organisms; Viral Pathogenesis; Virology

Contact Information
955 Main Street, Rm 5228
Buffalo, New York 14203
Phone: (716)-829-2994
stavrou2@buffalo.edu



Professional Summary:

Retroviruses comprise a large and diverse family of RNA viruses that can infect a variety of hosts and can lead to immune system dysfunction and cancer. The most well known member of this family is HIV (Human Immunodeficiency Virus), which is responsible for millions of deaths every year. Immune cells, such as CD4+ T cells, are the targets of HIV infection resulting in their subsequent destruction and the overall impairment of the immune system. As a result of the deterioration of the immune system, the host is unable to fight effectively infections and some other diseases. Opportunistic infections or cancers take advantage of the weakened host, which can prove to be lethal. Other members of the retrovirus family, Murine Leukemia Virus (MLV) and Mouse Mammary Tumor Virus (MMTV) are common pathogens of mice that are used in research to study the interplay between the host and retroviruses and have served as models for HIV and other human retroviruses.

In the context of the constant struggle between host cells and pathogens, cells have developed early innate immune and cell-intrinsic strategies to counteract retroviruses. Therefore, retroviruses have developed a variety of sophisticated mechanisms to counteract cellular responses and allow for productive infections to occur. Due to the complexity of the antiviral immune response, a full understanding of host-pathogen interactions requires the integration of in vitro and in vivo data, where the role of cellular restriction factors and the innate immune response are examined in a living organism. Infections in mouse models have provided important and at times surprising insights into the relationship between hosts and pathogens. Thus one of the areas of focus for our lab will be the integration of in vivo and in vitro models to study the interaction of novel cellular host factors and retroviruses.

HIV and other lentiviruses devote a relatively large portion of their genome to accessory proteins that counteract those cellular host factors. Understanding the function of these accessory proteins has provided insight into the intrinsic defenses utilized by the cell to block viral infections, as well as generated potential targets for antiviral interventions. However, there is no currently tractable in vivo model for studying cell host restriction factor/accessory protein interactions. Hence, the second major focus of our lab will be the development of in vivo models to examine the interplay between HIV accessory proteins and host cell intrinsic immunity.

Education and Training:

  • PhD, Microbiology, University of Chicago (2009)
  • MS, Molecular Biology, University of Pennsylvania (2003)
  • BA, Biology and Classical Studies, University of Pennsylvania (2001)

Employment:

  • Assistant Professor, Microbiology and Immunology, State University of New York at Buffalo Jacobs School of Medicine & Biomedical Sciences (2018-present)
  • Research Assistant Professor, Microbiology and Immunology, University of Illinois at Chicago, College of Medicine (2016–2018)
  • Post Doctoral Fellow, Microbiology, University of Pennsylvania, Perelman School of Medicine (2011–2016)
  • Graduate Student, Microbiology, University of Chicago (2003–2010)

Research Expertise:

  • Cell intrinsic immunity
  • Host cellular factors
  • Host-pathogens interactions
  • In vivo models of infection
  • Innate immunity
  • Retroviruses
  • Transgenic mice
  • Viral pathogenesis

Research Centers:

  • Witebsky Center for Microbial Pathogenesis and Immunology

Grants and Sponsored Research:

  • January 2020–December 2021
    The role of SERINC5 during retrovirus infection in vivo
    NIH/NIAID
    Role: Principal Investigator
    $435,650
  • April 2018–March 2019
    A3G induced virus evolution
    amfAR Foundation
    Role: Principal Investigator
    $50,000
  • October 2014–September 2016
    A3G induced virus evolution
    amfAR Foundation
    Role: Principal Investigator
    $130,000
  • February 2013–January 2014
    The in vivo function of APOBEC3 during retrovirus infection
    National Institute of AIlergy and Infectious Diseases
    Role: Principal Investigator
    $53,942

Journal Articles:

See all (7 more)

Abstracts:

  • Umthong S., Timilsina U., Waxman B., Lynch B., Stavrou S. (2020) Elucidating the roles of the murine MARCH protein family on retrovirus infection. ASV. Fort Collins/Virtual, Colorado (Jun)Oral
  • Timilsina U., Umthong S., Lynch B., Stavrou S. (2020) SERINC5-mediated restriction of MLV infection in vivo is dependent on glyco-Gag and the viral envelope. Retroviruses. Cold Spring Harbor, New York (May)Oral
  • Timilsina U., Umthong S., Stablewski A., Stavrou S. (2020) SERINC5 potently restricts retrovirus infection in vivo. ASV. Fort Collins/Virtual, Colorado (Jan)Oral
  • Stavrou S., Blouch K., Agarwal N., Bass A., Ross S.R.,. (2017) Sensing of reverse transcripts is critical for the in vivo control of retrovirus infection. American Society of Virology. Madison, Wisconsin (Jun)Oral
  • Stavrou S., Blouch K., Ross S.R. (2017) The nucleic acid sensor DDX41 recognizes retroviral RNA/DNA hybrids and is critical for controlling in vivo infection. Retroviruses. Cold Spring Harbor, New York (May)Oral
  • Stavrou S., Blouch K., Ross S.R. (2016) Sensing of reverse transcripts is critical for the in vivo control of retrovirus infection. The 28th International Workshop on Retrovirus Pathogenesis. New Orleans, Louisiana (Dec)Oral
  • Cadena C., Stavrou S., Iyer S., Bibollet-Ruche F., Hahn B., Browne E.P., Ross S.R. (2015) Modeling HIV VIF/APOBEC3G interactions in mice. Retroviruses. Philadelphia, Pennsylvania (May)Poster
  • Stavrou S., Blouch K., Bass A., Ross S.R. (2015) DDX41, IFI203 and CGAS synergistically detect reverse transcripts and activate the type I IFN response. Retroviruses. Cold Spring Harbor, New York (May)Oral
  • Stavrou S., Blouch K., Ross S.R. (2015) The cytidine deamination domains (CDAs) of mouse APOBEC3 are dispensable for retrovirus restriction. Retroviruses. Cold Spring Harbor, New York (May)Poster

Professional Memberships:

  • American Society of Virology (2018–present)
  • AAAS (2018–present)
  • American Society of Microbiology (2016–present)

Presentations:

  • "Elucidating the antiviral role of MARCH proteins" SUNY, University at Buffalo, School of Dental Medicine, Oral Biology Department (2021)
  • "MARCH proteins potently restrict viral infections" SUNY, University at Buffalo, Jacobs School of Medicine and Biomedical Sciences, Infectious Diseases Division (2020)
  • "MARCH proteins potently restrict retrovirus infection" Annual Upstate New York Immunology Conference (2019)
  • "The role of host cell restriction factors on retrovirus infection" Roswell Park Comprehensive Cancer Center, Dept of Molecular and Cellular Biology (2019)
  • "APOBEC3 and cytosolic DNA sensors synergistically counteract retrovirus infection" University of Indiana, Dept of Microbiology and Immunology (2017)
  • "APOBEC3 and cytosolic DNA sensors synergistically counteract retrovirus infection" University of Illinois at Chicago, Dept of Microbiology and Immunology, (2016)
  • "APOBEC3 and cytosolic DNA sensors synergistically counteract retrovirus infection" University of Pennsylvania, Dept of Microbiology (2016)
  • "APOBEC3 and cytosolic DNA sensors synergistically counteract retrovirus infection" University of Texas A&M, Dept of Microbial Pathogenesis and Immunology (2016)

Service Activities:

  • Faculty Council (2020–present)
  • Medical School Research Forum; Poster Judge (2020)
  • Cell Reports; Ad hoc reviewer (2020–present)
  • Current Research in Virological Science; Ad hoc reviewer (2020–present)
  • Small GTPases; Ad hoc reviewer (2020–present)
  • Microorganisms; Ad hoc reviewer (2020–present)
  • PPBS admissions; Secondary Microbiology and Immunology reviewer (2020–present)
  • New Frontiers Distinguished Seminar; Co-Organizer (2019–present)
  • CSTEP Research Symposium; Poster Judge (2019)
  • AmfAR Mathilde Krim Fellowship reviewer; Ad hoc reviewer (2019)
  • PPBS Admissions; Interviewer (2019)
  • mBio; Ad hoc reviewer (2019–present)
  • Plos Pathogens; Ad hoc reviewer (2019–present)
  • Netter Award Selection Committee member, Western NY ASM Chapter; Award selection Committee (2018–2019)
  • Witebsky Center Annual Buffalo Conference on Microbial Pathogenesis; Conference organizer and host of Virology speaker (2018–2019)
  • Gorzynski Award Selection; Committee Member (2018–2019)
  • Annual UB Postdoc Research Symposium; Poster Judge (2018–2019)
  • Plos One; Academic Editor (2018–present)
  • Journal of Cellular Biochemistry; Ad hoc reviewer (2018–present)
  • Cells; Ad hoc reviewer (2017–present)
  • Viruses; Ad Hoc Reviewer (2017–present)
  • Journal of Virology; Ad Hoc Reviewer (2016–present)

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Contact Information

955 Main Street, Rm 5228
Buffalo, New York 14203
Phone: (716)-829-2994
stavrou2@buffalo.edu