期刊
HUMAN GENE THERAPY
卷 18, 期 7, 页码 575-588出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/hum.2007.038
关键词
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资金
- NCI NIH HHS [R24CA92871] Funding Source: Medline
Understanding of the trafficking of antigen-specific CD8(+) T cells in vivo will provide insight about how our immune system controls infectious diseases and cancers. In the current study we used a luciferase-expressing human papillomavirus type 16 (HPV-16) E7-specific CD8(+) T cell for adoptive transfer to control E7-expressing TC-1 tumor cells. We used noninvasive luminescence imaging to monitor the trafficking of E7-specific CD8(+) T cells over time. We also boosted the luciferase-expressing E7-specific CD8(+) T cells in vivo, using E7-expressing vaccinia. We found that injected V-specific T cells preferentially migrated to the E7-expressing tumor site but not to the E7-negative control tumor site, and increased in number at the tumor site over time. In addition, vaccination with E7-expressing vaccinia led to a significant increase in the number of E7-specific CD8(+) T cells at the tumor site, resulting in a significant antitumor effect compared with vaccination with wild-type vaccinia. Thus, our data suggest that the antitumor effects generated by adoptive transfer of E7-specific CD8(+) T cells can be significantly enhanced by vaccination with E7-expressing vaccinia and that our system represents a plausible approach to investigate the trafficking and biology of antigen-specific T cells in vivo.
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