EBAG9/RCAS1 in human breast carcinoma: a possible factor in endocrine-immune interactions.

作者: T Suzuki , S Inoue , W Kawabata , J Akahira , T Moriya

DOI: 10.1054/BJOC.2001.2176

关键词:

摘要: EBAG9 has been recently identified as an oestrogen responsive gene in MCF-7 human breast carcinoma cells. is identical to RCAS1, a cancer cell surface antigen possibly involved immune escape. In this study, we examined the expression of EBAG9/RCAS1 carcinomas using immunohistochemistry and reverse transcription-polymerase chain reaction (RT-PCR). immunoreactivity was also associated with various clinicopathological parameters, including intratumoural infiltration inflammatory cells, examine biological significance carcinomas. detected entire cytoplasm cells 82 out 91 invasive ductal (90.1%). non-neoplastic mammary glands, weakly present on luminal epithelial Results from RT-PCR (n = 7) were consistent those immunohistochemistry. significantly estrogen receptor (ER) α labelling index (P 0.0081), inversely degree mononuclear 0.0020), or CD3+ T lymphocytes 0.0025). This study suggests that produced via ER inhibits context possible endocrine–immune interaction © 2001 Cancer Research Campaign http://www.bjcancer.com

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