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. SIV infection in Chinese rhesus macaque (ChRM) results in high frequency of long-term nonprogressing macaques (LTNP). We used this model for continuous study of the role of natural killer (NK) cells in the establishment of long-term nonprogressing state in LTNP ChRM. Recently, to investigate gene expression in NK cells at different status of SIV infection, we used rhesus specific gene array chips for microarray assay. We purified NK cells in peripheral blood from the LTNP and normal progressors (NP) using CD8+, CD16+ beads. CD16 is a low affinity receptor that recognizes IgG as aggregates surrounding multivalent antigens during late immune responses. Remarkably, in comparison with NP, NK cells in LTNP had high up-regulation of CD16 (FcrRIIIa), the gene that was important for the ADCC immune responses. However, the downstream src-family kinase LCK/Fyn was downregulated that may moderate the overall NK cell activation to a relatively low level. Lower NK cell activation may avoid inducing general immune activation, which is possibly the main contributor of low viral status in the LTNP. NK cells also express numerous iNKR. Even though inhibition of NK cell pathway had both upregulation (LILRB1, AIRM1, NKG2A) and down-regulation (LAIR1), the downstream gene had minor changes, indicating minor changes of NK cell inhibition in the SIV-infected long-term nonprogressing status.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Primate Research Center Grants (P51)
Project #
5P51RR000164-50
Application #
8358101
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

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