Tat(28-35)SL8-specific CD8+ T lymphocytes are more effective than Gag(181-189)CM9-specific CD8+ T lymphocytes at suppressing simian immunodeficiency virus replication in a functional in vitro assay.

Abstract:

:Epitope-specific CD8+ T lymphocytes may play an important role in controlling human immunodeficiency virus (HIV)/simian immunodeficiency virus replication. Unfortunately, standard cellular assays do not measure the antiviral efficacy (the ability to suppress virus replication) of CD8+ T lymphocytes. Certain epitope-specific CD8+ T lymphocytes may be better than others at suppressing viral replication. We compared the antiviral efficacy of two immunodominant CD8+ T lymphocyte responses--Tat(28-35)SL8 and Gag(181-189)CM9--by using a functional in vitro assay. Viral suppression by Tat-specific CD8+ T lymphocytes was consistently greater than that of Gag-specific CD8+ T lymphocytes. Such differences in antigen-specific CD8+-T-lymphocyte efficacy may be important for selecting CD8+ T lymphocyte epitopes for inclusion in future HIV vaccines.

journal_name

J Virol

journal_title

Journal of virology

authors

Loffredo JT,Rakasz EG,Giraldo JP,Spencer SP,Grafton KK,Martin SR,Napoé G,Yant LJ,Wilson NA,Watkins DI

doi

10.1128/JVI.79.23.14986-14991.2005

subject

Has Abstract

pub_date

2005-12-01 00:00:00

pages

14986-91

issue

23

eissn

0022-538X

issn

1098-5514

pii

79/23/14986

journal_volume

79

pub_type

杂志文章