CHARACTERIZATION OF A HUMAN RENAL-CELL CARCINOMA SPECIFIC CYTOTOXIC CD8+ T-CELL LINE

被引:90
作者
FINKE, JH
RAYMAN, P
EDINGER, M
TUBBS, RR
STANLEY, J
KLEIN, E
BUKOWSKI, R
机构
[1] CLEVELAND CLIN EDUC FDN, DEPT PATHOL, CLEVELAND, OH 44106 USA
[2] CLEVELAND CLIN EDUC FDN, DEPT UROL, CLEVELAND, OH 44106 USA
[3] CLEVELAND CLIN EDUC FDN, DEPT EXPTL THERAPEUT, CLEVELAND, OH 44106 USA
关键词
SPECIFIC CYTOTOXIC TUMOR-INFILTRATING LYMPHOCYTES; RENAL CELL CARCINOMA; TCR/CD3; RECOGNITION; INTERFERON-GAMMA PRODUCTION;
D O I
10.1097/00002371-199201000-00001
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Human renal cell carcinoma (RCC) is one of the tumors most sensitive to immunotherapy and in that regard it is similar to malignant melanoma. Clinical studies reporting responses to therapy suggested that a host immune response may be involved in the antitumor activity induced by immunotherapy in these tumors. Although detection of a specific T cell response to melanoma has been well documented, this has not been the case for RCC. The lytic response of interleukin-2 (IL-2) cultured tumor-infiltrating lymphocytes (TILs) from RCC has been nonspecific. However, in this report we describe a CD8+ TIL line derived from a primary RCC tumor that displays specificity for the autologous tumor. This line is lytic for autologous RCC but does not lyse autologous lymphoblasts, allogeneic RCC, or tumor cell lines of other histologic types. It also proliferates specifically to the autologous tumor in the absence of exogenous IL-2. However, the addition of low dose IL-2 to the cultures can significantly augment its proliferative response. When stimulated with autologous RCC but not allogeneic RCC the CD8+ line will produce interferon-gamma (IFN-gamma). It appears that recognition of RCC by this TIL line is through the TCR/CD3 complex because anti-CD3 antibody blocks the lytic activity, proliferation and IFN-gamma production of the line in response to the autologous tumor. Additional studies illustrate that cytotoxic T lymphocytes with apparent specificity for the autologous tumor are present in unseparated cultured TILs that can be detected by clonal analysis. Collectively these results suggest that there is a specific T cell response to human RCC.
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页码:1 / 11
页数:11
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