The Majority of Freshly Sorted Simian Immunodeficiency Virus (SIV)-Specific CD8(+) T Cells Cannot Suppress Viral Replication in SIV-Infected Macrophages
作者
Vojnov, L; Martins, MA; Bean, AT; de Santana, MGV; Sacha, JB; Wilson, NA; Bonaldo, MC; Galler, R; Stevenson, M; Watkins, DI
[摘要]：Human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) primarily infect activated CD4(+) T cells but can infect macrophages. Surprisingly, ex vivo tetramer-sorted SIV-specific CD8(+) T cells that eliminated and suppressed viral replication in SIV-infected CD4(+) T cells failed to do so in SIV-infected macrophages. It is possible, therefore, that while AIDS virus-infected macrophages constitute only a small percentage of all virus-infected cells, they may be relatively resistant to CD8(+) T cell-mediated lysis and continue to produce virus over long periods of time.
