Abstract

Although it has an enormous impact on public health, we have only limited knowledge of the molecular mechanisms underlying influenza A virus (IAV) ability to evade the immune response. Antigenic drift precludes long lasting natural or vaccine induced immunity, and is the cause of yearly vaccine reformulation. Despite its importance, we also are limited in our understanding of the molecular mechanisms underlying antigenic drift of IAV and the fine specificity of the B cell response to the IAV hemagglutinin. We are examining the changes in the structure and function of the influenza HA that provide an advantage in the face of the host neutralizing antibody response. This year we have continued to examine the breadth of the B cell repertoire in response to an influenza virus infection as well as biochemically studying the biogenesis of the influenza virus hemagglutinin.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Investigator-Initiated Intramural Research Projects (ZIA)
Project #
1ZIAAI001055-07
Application #
8946444
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
7
Fiscal Year
2014
Total Cost
Indirect Cost

  Institution

Name
Niaid Extramural Activities
Department
Type
DUNS #
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State
Country
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  Publications

Frank, Gregory M; Angeletti, Davide; Ince, William L et al. (2015) A Simple Flow-Cytometric Method Measuring B Cell Surface Immunoglobulin Avidity Enables Characterization of Affinity Maturation to Influenza A Virus. MBio 6:e01156
Altman, Meghan O; Bennink, Jack R; Yewdell, Jonathan W et al. (2015) Lamprey VLRB response to influenza virus supports universal rules of immunogenicity and antigenicity. Elife 4:
Magadán, Javier G; Altman, Meghan O; Ince, William L et al. (2014) Biogenesis of influenza a virus hemagglutinin cross-protective stem epitopes. PLoS Pathog 10:e1004204
Whittle, James R R; Wheatley, Adam K; Wu, Lan et al. (2014) Flow cytometry reveals that H5N1 vaccination elicits cross-reactive stem-directed antibodies from multiple Ig heavy-chain lineages. J Virol 88:4047-57
Brooke, Christopher B; Ince, William L; Wei, Jiajie et al. (2014) Influenza A virus nucleoprotein selectively decreases neuraminidase gene-segment packaging while enhancing viral fitness and transmissibility. Proc Natl Acad Sci U S A 111:16854-9
Yu, Cheng-Rong; Dambuza, Ivy M; Lee, Yong-Jun et al. (2013) STAT3 regulates proliferation and survival of CD8+ T cells: enhances effector responses to HSV-1 infection, and inhibits IL-10+ regulatory CD8+ T cells in autoimmune uveitis. Mediators Inflamm 2013:359674
Yewdell, Jonathan W; Spiro, David J; Golding, Hana et al. (2013) Getting to the heart of influenza. Sci Transl Med 5:191ed8
Magadan, Javier G; Khurana, Surender; Das, Suman R et al. (2013) Influenza a virus hemagglutinin trimerization completes monomer folding and antigenicity. J Virol 87:9742-53
Yewdell, Jonathan W; Ince, William L (2013) Greasing the SCIDs for universal flu antibodies. Cell Host Microbe 14:7-8
Brooke, Christopher B; Ince, William L; Wrammert, Jens et al. (2013) Most influenza a virions fail to express at least one essential viral protein. J Virol 87:3155-62

Showing the most recent 10 out of 23 publications