We have yet to fully define the immune responses associated with immunologic control of HIV replication. To develop an effective vaccine, we need to better understand the responses that may be controlling HIV, and why these defenses might fail. This study examines the T cell immune responses to HIV in naturally-infected subjects. It compares these responses with those generated against other viruses and non-viral pathogens in order to determine mechanisms of success or failure of an immune response.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Intramural Research (Z01)
Project #
1Z01AI005015-06
Application #
7592386
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
6
Fiscal Year
2007
Total Cost
$1,213,840
Indirect Cost
City
State
Country
United States
Zip Code
Geldmacher, Christof; Metzler, Ian S; Tovanabutra, Sodsai et al. (2009) Minor viral and host genetic polymorphisms can dramatically impact the biologic outcome of an epitope-specific CD8 T-cell response. Blood 114:1553-62
Petrovas, Constantinos; Price, David A; Mattapallil, Joseph et al. (2007) SIV-specific CD8+ T cells express high levels of PD1 and cytokines but have impaired proliferative capacity in acute and chronic SIVmac251 infection. Blood 110:928-36
Precopio, Melissa L; Betts, Michael R; Parrino, Janie et al. (2007) Immunization with vaccinia virus induces polyfunctional and phenotypically distinctive CD8(+) T cell responses. J Exp Med 204:1405-16
Lore, Karin; Adams, William C; Havenga, Menzo J E et al. (2007) Myeloid and plasmacytoid dendritic cells are susceptible to recombinant adenovirus vectors and stimulate polyfunctional memory T cell responses. J Immunol 179:1721-9
Yang, Litao; Peng, Hui; Zhu, Zhaoling et al. (2007) Persistent memory CD4+ and CD8+ T-cell responses in recovered severe acute respiratory syndrome (SARS) patients to SARS coronavirus M antigen. J Gen Virol 88:2740-8
Peng, Hui; Yang, Li-tao; Wang, Ling-yun et al. (2006) Long-lived memory T lymphocyte responses against SARS coronavirus nucleocapsid protein in SARS-recovered patients. Virology 351:466-75
Wille-Reece, Ulrike; Flynn, Barbara J; Lore, Karin et al. (2006) Toll-like receptor agonists influence the magnitude and quality of memory T cell responses after prime-boost immunization in nonhuman primates. J Exp Med 203:1249-58
Perfetto, Stephen P; Chattopadhyay, Pratip K; Lamoreaux, Laurie et al. (2006) Amine reactive dyes: an effective tool to discriminate live and dead cells in polychromatic flow cytometry. J Immunol Methods 313:199-208
Sullivan, Nancy J; Geisbert, Thomas W; Geisbert, Joan B et al. (2006) Immune protection of nonhuman primates against Ebola virus with single low-dose adenovirus vectors encoding modified GPs. PLoS Med 3:e177
Peng, Hui; Yang, Li-tao; Li, Jian et al. (2006) Human memory T cell responses to SARS-CoV E protein. Microbes Infect 8:2424-31

Showing the most recent 10 out of 33 publications