期刊
PROSTATE
卷 67, 期 6, 页码 623-629出版社
WILEY-LISS
DOI: 10.1002/pros.20538
关键词
FOXP3; forkhead; regulatory T-cell; prognosis; prostate cancer
资金
- Breast Cancer Now [2002:391] Funding Source: Medline
BACKGROUND. Regulatory T cells (T-R) mediate peripheral immunological tolerance and are implicated in tumor progression. Because prostate cancer is being investigated for treatment by immunotherapy, we have assessed tumor TR in prostate cancers. METHODS. TR cells were identified by FOXP3 in tissue microarrays (TMAs) from 146 radical prostatectomies and correlated with clinicopathological tumor parameters and prostatic specific antigen rise (PSA). RESULTS. Twenty of 146 tumors contained no TR. The mean of the average for the remaining 146 patients was 7.24. There was a significant correlation between TR and androgen receptor (P = 0.003) and with hypoxia-inducible factor (HIF)-2 alpha (P = 0.007) but not HIF-1 alpha (P = 0.25). There was no significant correlation between TR numbers and stage, capsular invasion, urethral margins, vascular invasion, Gleason score, pre-operative PSA, or time to PSA recurrence (all P > 0.05). CONCLUSIONS. TR in prostate tumors shows significant heterogeneity and maybe the result of hormonal and hypoxic signaling. Targeting these may reduce TR in tumors allowing more successful immune therapies.
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