Abstract
Cytotoxic T-lymphocyte (CTL) responses against the external envelope glycoprotein (gp120) of the simian immunodeficiency virus (SIV) were studied in a rhesus macaque infected with SIVmac/239. CD8+ T cells enriched from concanavalin A-stimulated peripheral blood mononuclear cells lysed autologous target cells infected with recombinant vaccinia virus vectors expressing the SIVmac/239 or SIVsm/H4 envelope protein, which share approximately 80% identity in amino acid sequence. A CD8+ CTL line derived by limiting dilution culture of the concanavalin A-stimulated lymphocytes was also specific for the envelope proteins of both SIV isolates. Mapping studies revealed that this cell line recognized an epitope between amino acids 113 and 121 (CNKSETDRW) in the V1 domain of gp120. Amino acid substitutions are observed at positions 116 and 120 among viruses of the SIVsm/mac/human immunodeficiency virus type 2 group, and thus synthetic peptides representing these variants were tested for the ability to sensitize target cells for lysis by the CTL line. Autologous target cells sensitized with a synthetic peptide representing the SIVmac/239 sequence were efficiently killed. In contrast, recognition of target cells was reduced or abolished when peptides representing the amino acid substitutions at position 116 or 120 of other SIVmac, SIVsm, SIVmne, or SIVstm strains were tested. Further studies of CTL responses against this epitope could provide insights into mechanisms of variability within the gp120 V1 domain and its importance in evasion of immunity in infected or vaccinated monkeys.
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Selected References
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- Almond N., Jenkins A., Heath A. B., Kitchin P. Sequence variation in the env gene of simian immunodeficiency virus recovered from immunized macaques is predominantly in the V1 region. J Gen Virol. 1993 May;74(Pt 5):865–871. doi: 10.1099/0022-1317-74-5-865. [DOI] [PubMed] [Google Scholar]
- Bourgault I., Venet A., Levy J. P. Three epitopic peptides of the simian immunodeficiency virus Nef protein recognized by macaque cytolytic T lymphocytes. J Virol. 1992 Feb;66(2):750–756. doi: 10.1128/jvi.66.2.750-756.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Burns D. P., Desrosiers R. C. Selection of genetic variants of simian immunodeficiency virus in persistently infected rhesus monkeys. J Virol. 1991 Apr;65(4):1843–1854. doi: 10.1128/jvi.65.4.1843-1854.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Desrosiers R. C. The simian immunodeficiency viruses. Annu Rev Immunol. 1990;8:557–578. doi: 10.1146/annurev.iy.08.040190.003013. [DOI] [PubMed] [Google Scholar]
- Giavedoni L. D., Planelles V., Haigwood N. L., Ahmad S., Kluge J. D., Marthas M. L., Gardner M. B., Luciw P. A., Yilma T. D. Immune response of rhesus macaques to recombinant simian immunodeficiency virus gp130 does not protect from challenge infection. J Virol. 1993 Jan;67(1):577–583. doi: 10.1128/jvi.67.1.577-583.1993. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hirsch V. M., Olmsted R. A., Murphey-Corb M., Purcell R. H., Johnson P. R. An African primate lentivirus (SIVsm) closely related to HIV-2. Nature. 1989 Jun 1;339(6223):389–392. doi: 10.1038/339389a0. [DOI] [PubMed] [Google Scholar]
- Hu S. L., Abrams K., Barber G. N., Moran P., Zarling J. M., Langlois A. J., Kuller L., Morton W. R., Benveniste R. E. Protection of macaques against SIV infection by subunit vaccines of SIV envelope glycoprotein gp160. Science. 1992 Jan 24;255(5043):456–459. doi: 10.1126/science.1531159. [DOI] [PubMed] [Google Scholar]
- Johnson P. R., Hamm T. E., Goldstein S., Kitov S., Hirsch V. M. The genetic fate of molecularly cloned simian immunodeficiency virus in experimentally infected macaques. Virology. 1991 Nov;185(1):217–228. doi: 10.1016/0042-6822(91)90769-8. [DOI] [PubMed] [Google Scholar]
- Kestler H., Kodama T., Ringler D., Marthas M., Pedersen N., Lackner A., Regier D., Sehgal P., Daniel M., King N. Induction of AIDS in rhesus monkeys by molecularly cloned simian immunodeficiency virus. Science. 1990 Jun 1;248(4959):1109–1112. doi: 10.1126/science.2160735. [DOI] [PubMed] [Google Scholar]
- Koenig S., Hirsch V. M., Olmsted R. A., Powell D., Maury W., Rabson A., Fauci A. S., Purcell R. H., Johnson P. R. Selective infection of human CD4+ cells by simian immunodeficiency virus: productive infection associated with envelope glycoprotein-induced fusion. Proc Natl Acad Sci U S A. 1989 Apr;86(7):2443–2447. doi: 10.1073/pnas.86.7.2443. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Letvin N. L., Miller M. D., Shen L., Chen Z. W., Yasutomi Y. Simian immunodeficiency virus-specific cytotoxic T lymphocytes in rhesus monkeys: characterization and vaccine induction. Semin Immunol. 1993 Jun;5(3):215–223. doi: 10.1006/smim.1993.1025. [DOI] [PubMed] [Google Scholar]
- Miller M. D., Gould-Fogerite S., Shen L., Woods R. M., Koenig S., Mannino R. J., Letvin N. L. Vaccination of rhesus monkeys with synthetic peptide in a fusogenic proteoliposome elicits simian immunodeficiency virus-specific CD8+ cytotoxic T lymphocytes. J Exp Med. 1992 Dec 1;176(6):1739–1744. doi: 10.1084/jem.176.6.1739. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Miller M. D., Lord C. I., Stallard V., Mazzara G. P., Letvin N. L. The gag-specific cytotoxic T lymphocytes in rhesus monkeys infected with the simian immunodeficiency virus of macaques. J Immunol. 1990 Jan 1;144(1):122–128. [PubMed] [Google Scholar]
- Overbaugh J., Rudensey L. M., Papenhausen M. D., Benveniste R. E., Morton W. R. Variation in simian immunodeficiency virus env is confined to V1 and V4 during progression to simian AIDS. J Virol. 1991 Dec;65(12):7025–7031. doi: 10.1128/jvi.65.12.7025-7031.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shen L., Chen Z. W., Miller M. D., Stallard V., Mazzara G. P., Panicali D. L., Letvin N. L. Recombinant virus vaccine-induced SIV-specific CD8+ cytotoxic T lymphocytes. Science. 1991 Apr 19;252(5004):440–443. doi: 10.1126/science.1708168. [DOI] [PubMed] [Google Scholar]
- Venet A., Bourgault I., Aubertin A. M., Kiény M. P., Levy J. P. Cytotoxic T lymphocyte response against multiple simian immunodeficiency virusA (SIV) proteins in SIV-infected macaques. J Immunol. 1992 May 1;148(9):2899–2908. [PubMed] [Google Scholar]
- Walker C. M., Erickson A. L., Hsueh F. C., Levy J. A. Inhibition of human immunodeficiency virus replication in acutely infected CD4+ cells by CD8+ cells involves a noncytotoxic mechanism. J Virol. 1991 Nov;65(11):5921–5927. doi: 10.1128/jvi.65.11.5921-5927.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yamamoto H., Miller M. D., Watkins D. I., Snyder G. B., Chase N. E., Mazzara G. P., Gritz L., Panicali D. L., Letvin N. L. Two distinct lymphocyte populations mediate simian immunodeficiency virus envelope-specific target cell lysis. J Immunol. 1990 Dec 1;145(11):3740–3746. [PubMed] [Google Scholar]
- Yasutomi Y., Reimann K. A., Lord C. I., Miller M. D., Letvin N. L. Simian immunodeficiency virus-specific CD8+ lymphocyte response in acutely infected rhesus monkeys. J Virol. 1993 Mar;67(3):1707–1711. doi: 10.1128/jvi.67.3.1707-1711.1993. [DOI] [PMC free article] [PubMed] [Google Scholar]