This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. Worldwide, the vast majority of HIV-1 cases occur through heterosexual transmission. However, the earliest initial events involved in vaginal transmission are uncertain. We have been working with Tom Hope using photoactivateable virus, dyes, or compounds designed to test the mechanisms of viral penetration into the vaginal mucosa. The results prove that HIV enters intact vaginal squamous epithelium by passive diffusion through multiple layers of squamous epithelial cells. Our most recent data indicate it is actually the CD4+ T Cells in the vaginal mucosal that support the earliest events in transmission, and dendritic cells play a minimal, if any, role in the early events involved in vaginal transmission. These studies were started as a collaborative, multicenter trial with the Center for HIV and AIDS vaccine Initiative (CHAVI) but now that these earliest events are known, we are now trying to determine how the virus gets from the vaginal mucosal to the intestinal tract in the first few days of infection using R01AI084793.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Primate Research Center Grants (P51)
Project #
5P51RR000164-50
Application #
8358071
Study Section
Special Emphasis Panel (ZRR1-CM-8 (01))
Project Start
2011-05-01
Project End
2012-04-30
Budget Start
2011-05-01
Budget End
2012-04-30
Support Year
50
Fiscal Year
2011
Total Cost
$57,750
Indirect Cost
Name
Tulane University
Department
Obstetrics & Gynecology
Type
Schools of Medicine
DUNS #
053785812
City
New Orleans
State
LA
Country
United States
Zip Code
70118
Yi, Fei; Guo, Jia; Dabbagh, Deemah et al. (2017) Discovery of Novel Small-Molecule Inhibitors of LIM Domain Kinase for Inhibiting HIV-1. J Virol 91:
Datta, Dibyadyuti; Bansal, Geetha P; Grasperge, Brooke et al. (2017) Comparative functional potency of DNA vaccines encoding Plasmodium falciparum transmission blocking target antigens Pfs48/45 and Pfs25 administered alone or in combination by in vivo electroporation in rhesus macaques. Vaccine 35:7049-7056
Calenda, Giulia; Villegas, Guillermo; Barnable, Patrick et al. (2017) MZC Gel Inhibits SHIV-RT and HSV-2 in Macaque Vaginal Mucosa and SHIV-RT in Rectal Mucosa. J Acquir Immune Defic Syndr 74:e67-e74
Jorgensen, Matthew J; Lambert, Kelsey R; Breaux, Sarah D et al. (2017) Pair housing of Vervets/African Green Monkeys for biomedical research. Am J Primatol 79:1-10
Ramesh, Geeta; Martinez, Alejandra N; Martin, Dale S et al. (2017) Effects of dexamethasone and meloxicam on Borrelia burgdorferi-induced inflammation in glial and neuronal cells of the central nervous system. J Neuroinflammation 14:28
Robillard, Katelyn N; Lee, Kim M; Chiu, Kevin B et al. (2016) Glial cell morphological and density changes through the lifespan of rhesus macaques. Brain Behav Immun 55:60-69
Song, Ruijiang; Pace, Craig; Seaman, Michael S et al. (2016) Distinct HIV-1 Neutralization Potency Profiles of Ibalizumab-Based Bispecific Antibodies. J Acquir Immune Defic Syndr 73:365-373
Inglis, Fiona M; Lee, Kim M; Chiu, Kevin B et al. (2016) Neuropathogenesis of Chikungunya infection: astrogliosis and innate immune activation. J Neurovirol 22:140-8
Liu, David X; Didier, Peter J; Plauche, Gail et al. (2016) Septicemia in an Indian Rhesus Macaque (Macaca mulatta) associated with Providencia stuartii. J Med Primatol 45:330-332
Lee, Kim M; Chiu, Kevin B; Sansing, Hope A et al. (2016) The flavivirus dengue induces hypertrophy of white matter astrocytes. J Neurovirol 22:831-839

Showing the most recent 10 out of 344 publications