Abstract

We are developing an animal model of simian T-cell lymphotropic virus (STLV-I) induced disease. We originally identified a African green monkey naturally infected with STLV-IAGM and SIVAGM that died from lymphoproliferative disease and advanced immunodeficiency disease. STLV-I was associated with abnormal lymphoproliferation and produced hyperplastic lymph nodes that were clonal outgrowths of STLV-I-infected cells. In addition, there was immunosuppression and widespread dissemination of a naturally occuring simian immunodeficiency virus (SIVAGM). The animals presently on this study are recipients of STLV-IAGM, STLV-IRhesus, or STLV-ISooty Mangabey.. All animals seroconverted, became PCR and culture positive. Certain animals developed lymphocytosis, and lymphocyte subset changes. These animals are now transiently PCR positive and culture negative, suggesting virus latency. We utilized various treatments (hormone, immunosuppresion, and coinfection with SIV) to stimulate and reactivate the virus. Transient activation was shown in some animals. We are currently developing an assay to quantitate viral expression in these animals. The extent of activation, cellular changes and associated clinical followup is being characterized both at a cellular and a molecular level. FUNDING Base Grant, Venture Research PUBLICATIONS NONE

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Primate Research Center Grants (P51)
Project #
5P51RR000164-38
Application #
6116186
Study Section
Project Start
1999-05-01
Project End
2000-04-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
38
Fiscal Year
1999
Total Cost
Indirect Cost

  Institution

Name
Tulane University
Department
Type
DUNS #
City
New Orleans
State
LA
Country
United States
Zip Code
70118

  Publications

Mahalingam, Ravi; Kaufer, Benedikt B; Ouwendijk, Werner J D et al. (2018) Attenuation of Simian Varicella Virus Infection by Enhanced Green Fluorescent Protein in Rhesus Macaques. J Virol 92:
Kumar, Vinay; Mansfield, Joshua; Fan, Rong et al. (2018) miR-130a and miR-212 Disrupt the Intestinal Epithelial Barrier through Modulation of PPAR? and Occludin Expression in Chronic Simian Immunodeficiency Virus-Infected Rhesus Macaques. J Immunol 200:2677-2689
Parthasarathy, Geetha; Philipp, Mario T (2018) Intracellular TLR7 is activated in human oligodendrocytes in response to Borrelia burgdorferi exposure. Neurosci Lett 671:38-42
McNamara, Ryan P; Costantini, Lindsey M; Myers, T Alix et al. (2018) Nef Secretion into Extracellular Vesicles or Exosomes Is Conserved across Human and Simian Immunodeficiency Viruses. MBio 9:
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
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
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:
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
Parthasarathy, Geetha; Philipp, Mario T (2017) Receptor tyrosine kinases play a significant role in human oligodendrocyte inflammation and cell death associated with the Lyme disease bacterium Borrelia burgdorferi. J Neuroinflammation 14:110

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