Optimizing vaccine-induced CD8(+) T-cell immunity: focus on recombinant adenovirus vectors.

Abstract:

:Recombinant adenoviruses have emerged as promising viral vectors for CD8(+) T-cell vaccines. Our studies have indicated that unlike most acute infections, the CD8(+) T-cell memory population elicited by recombinant human adenovirus serotype 5 (rHuAd5) displays a dominant effector memory phenotype. Persistent, low-level transgene expression from the rHuAd5 vector sustains the CD8(+) T-cell memory population and a nonhematopoietic cell compartment appears to be involved in long-term presentation of adenoviral antigens. Although we are beginning to learn more about the factors that control the maintenance and functionality of memory CD8(+) T cells, we do not yet fully understand what comprises a protective CD8(+) T-cell response. Results from upcoming Phase II clinical trials will be important for determining whether rHuAd5 T-cell vaccines are effective in humans and should help identify correlates of CD8(+) T-cell protection.

journal_name

Expert Rev Vaccines

authors

Bassett JD,Swift SL,Bramson JL

doi

10.1586/erv.11.88

subject

Has Abstract

pub_date

2011-09-01 00:00:00

pages

1307-19

issue

9

eissn

1476-0584

issn

1744-8395

journal_volume

10

pub_type

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