Abstract:
UNLABELLED:Foreskin is the principal site of heterosexual HIV-1 infection in men. However, little is known about HIV-1-specific immune responses or inflammation in foreskin. To the best of our knowledge, no previous studies have assessed immune responses to candidate HIV-1 vaccines in foreskin. Using the rhesus monkey model, we show that intramuscular immunization with adenovirus serotype 26 and 35 vectors expressing SIV antigens elicited durable SIV Gag-specific CD4(+) and CD8(+) T cell responses in foreskin that were detectable for more than 1 year following vaccination. Gag-specific CD4(+) and CD8(+) T cells were also detectable in foreskin of SIV- and SHIV-infected animals and were at least comparable in magnitude to those in peripheral blood. However, unlike peripheral blood T cells, the majority of foreskin T cells exhibited transitional memory or effector memory phenotype and expressed higher levels of the activation markers CD69, HLA-DR, and CCR5, although vaccination did not further enhance foreskin CD4(+) T cell activation. These findings suggest that systemic vaccination strategies can elicit potentially important SIV-specific cellular immunity in foreskin. Further characterization of vaccine-elicited immune responses and inflammation in foreskin is warranted. IMPORTANCE:We demonstrate here the induction of SIV-specific cellular immune responses in foreskin by adenovirus serotype 26 and 35 vaccine vectors. Foreskin T cells were more activated than peripheral blood T cells, but foreskin T cells were not further activated by vaccination. These findings suggest that alternative serotype adenovirus vectors induce potentially important immune responses in foreskin.
journal_name
J Viroljournal_title
Journal of virologyauthors
Balandya E,Miller AD,Beck M,Liu J,Li H,Borducchi E,Smith K,Cabral C,Stanley K,Maxfield LF,Barouch DHdoi
10.1128/JVI.03771-13subject
Has Abstractpub_date
2014-04-01 00:00:00pages
3756-65issue
7eissn
0022-538Xissn
1098-5514pii
JVI.03771-13journal_volume
88pub_type
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pub_type: 杂志文章
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更新日期:1995-02-01 00:00:00
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1989-12-01 00:00:00
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.7.6.830-835.1971
更新日期:1971-06-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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