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Cytotoxic T lymphocyte antigen-4 expression in esophageal carcinoma: implications for prognosis.


ABSTRACT: To examine the relationship between cytotoxic T lymphocyte antigen-4 (CTLA-4) expression and esophageal carcinoma prognosis, CTLA-4 expression was immunohistochemically detected in paraffin-embedded primary tumor specimens from 158 patients with esophageal cancer. CTLA-4 was detected in the cytoplasm and cell membranes of esophageal cancer cells and in interstitial lymphocytes. In univariate analyses (log-rank), higher interstitial CTLA-4+ lymphocyte density and higher tumor CTLA-4 expression were associated with shorter overall survival (OS). After controlling for age and clinical stage, multivariate analysis (Cox) found that tumor CTLA-4 expression was an independent predictor of shorter OS (HR 2.016, P = 0.004). These results indicate that CTLA-4 expression in the tumor environment (both lymphocytes and tumor cells) is associated with poorer prognosis. In addition, CTLA-4 profiles may be useful for predicting the benefits and toxicity of CTLA-4 blockade in patients with esophageal carcinoma.

SUBMITTER: Zhang XF 

PROVIDER: S-EPMC5042006 | biostudies-other | 2016 May

REPOSITORIES: biostudies-other

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Cytotoxic T lymphocyte antigen-4 expression in esophageal carcinoma: implications for prognosis.

Zhang Xiao-Fei XF   Pan Ke K   Weng De-Sheng DS   Chen Chang-Long CL   Wang Qi-Jing QJ   Zhao Jing-Jing JJ   Pan Qiu-Zhong QZ   Liu Qing Q   Jiang Shan-Shan SS   Li Yong-Qiang YQ   Zhang Hong-Xia HX   Xia Jian-Chuan JC  

Oncotarget 20160501 18


To examine the relationship between cytotoxic T lymphocyte antigen-4 (CTLA-4) expression and esophageal carcinoma prognosis, CTLA-4 expression was immunohistochemically detected in paraffin-embedded primary tumor specimens from 158 patients with esophageal cancer. CTLA-4 was detected in the cytoplasm and cell membranes of esophageal cancer cells and in interstitial lymphocytes. In univariate analyses (log-rank), higher interstitial CTLA-4+ lymphocyte density and higher tumor CTLA-4 expression we  ...[more]

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