A dominant role for CD8+-T-lymphocyte selection in simian immunodeficiency virus sequence variation

David H. O'Connor; Adrian B. McDermott; Kendall C. Krebs; Elizabeth J. Dodds; Jacqueline E. Miller; Edna J. Gonzalez; Timothy J. Jacoby; Levi Yant; Helen Piontkivska; Ralph Pantophlet; Dennis R. Burton; William M. Rehrauer; Nancy Wilson; Austin L. Hughes; David I. Watkins

doi:10.1128/JVI.78.24.14012-14022.2004

A dominant role for CD8⁺-T-lymphocyte selection in simian immunodeficiency virus sequence variation

David H. O'Connor, Adrian B. McDermott, Kendall C. Krebs, Elizabeth J. Dodds, Jacqueline E. Miller, Edna J. Gonzalez, Timothy J. Jacoby, Levi Yant, Helen Piontkivska, Ralph Pantophlet, Dennis R. Burton, William M. Rehrauer, Nancy Wilson, Austin L. Hughes, David I. Watkins

Pathology

Research output: Contribution to journal › Article

82 Scopus citations

Abstract

CD8⁺ T lymphocytes (CD8-TL) select viral escape variants in both human immunodeficiency virus and simian immunodeficiency virus (SIV) infections. The frequency of CD8-TL viral escape as well as the contribution of escape to overall virus diversification has not been assessed. We quantified CD8-TL selection in SIV infections by sequencing viral genomes from 35 SIVmac239-infected animals at the time of euthanasia. Here we show that positive selection for sequences encoding 46 known CD8-TL epitopes is comparable to the positive selection observed for the variable loops of env. We also found that >60% of viral variation outside of the viral envelope occurs within recognized CD8-TL epitopes. Therefore, we conclude that CD8-TL selection is the dominant cause of SIV diversification outside of the envelope.

Original language	English (US)
Pages (from-to)	14012-14022
Number of pages	11
Journal	Journal of virology
Volume	78
Issue number	24
DOIs	https://doi.org/10.1128/JVI.78.24.14012-14022.2004
State	Published - Dec 1 2004

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ASJC Scopus subject areas

Microbiology
Immunology
Insect Science
Virology

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O'Connor, D. H., McDermott, A. B., Krebs, K. C., Dodds, E. J., Miller, J. E., Gonzalez, E. J., Jacoby, T. J., Yant, L., Piontkivska, H., Pantophlet, R., Burton, D. R., Rehrauer, W. M., Wilson, N., Hughes, A. L., & Watkins, D. I. (2004). A dominant role for CD8⁺-T-lymphocyte selection in simian immunodeficiency virus sequence variation. Journal of virology, 78(24), 14012-14022. https://doi.org/10.1128/JVI.78.24.14012-14022.2004

A dominant role for CD8⁺-T-lymphocyte selection in simian immunodeficiency virus sequence variation. / O'Connor, David H.; McDermott, Adrian B.; Krebs, Kendall C.; Dodds, Elizabeth J.; Miller, Jacqueline E.; Gonzalez, Edna J.; Jacoby, Timothy J.; Yant, Levi; Piontkivska, Helen; Pantophlet, Ralph; Burton, Dennis R.; Rehrauer, William M.; Wilson, Nancy; Hughes, Austin L.; Watkins, David I.

In: Journal of virology, Vol. 78, No. 24, 01.12.2004, p. 14012-14022.

Research output: Contribution to journal › Article

O'Connor, DH, McDermott, AB, Krebs, KC, Dodds, EJ, Miller, JE, Gonzalez, EJ, Jacoby, TJ, Yant, L, Piontkivska, H, Pantophlet, R, Burton, DR, Rehrauer, WM, Wilson, N, Hughes, AL & Watkins, DI 2004, 'A dominant role for CD8⁺-T-lymphocyte selection in simian immunodeficiency virus sequence variation', Journal of virology, vol. 78, no. 24, pp. 14012-14022. https://doi.org/10.1128/JVI.78.24.14012-14022.2004

O'Connor, David H. ; McDermott, Adrian B. ; Krebs, Kendall C. ; Dodds, Elizabeth J. ; Miller, Jacqueline E. ; Gonzalez, Edna J. ; Jacoby, Timothy J. ; Yant, Levi ; Piontkivska, Helen ; Pantophlet, Ralph ; Burton, Dennis R. ; Rehrauer, William M. ; Wilson, Nancy ; Hughes, Austin L. ; Watkins, David I. / A dominant role for CD8⁺-T-lymphocyte selection in simian immunodeficiency virus sequence variation. In: Journal of virology. 2004 ; Vol. 78, No. 24. pp. 14012-14022.

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AU - Burton, Dennis R.

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AB - CD8+ T lymphocytes (CD8-TL) select viral escape variants in both human immunodeficiency virus and simian immunodeficiency virus (SIV) infections. The frequency of CD8-TL viral escape as well as the contribution of escape to overall virus diversification has not been assessed. We quantified CD8-TL selection in SIV infections by sequencing viral genomes from 35 SIVmac239-infected animals at the time of euthanasia. Here we show that positive selection for sequences encoding 46 known CD8-TL epitopes is comparable to the positive selection observed for the variable loops of env. We also found that >60% of viral variation outside of the viral envelope occurs within recognized CD8-TL epitopes. Therefore, we conclude that CD8-TL selection is the dominant cause of SIV diversification outside of the envelope.

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10.1128/JVI.78.24.14012-14022.2004