@article{oai:u-ryukyu.repo.nii.ac.jp:02011308, author = {Nakamura, Yuichiro and Miyata, Yasuyoshi and Matsuo, Tomohiro and Shida, Yohei and Hakariya, Tomoaki and Ohba, Kojiro and Taima, Takenobu and Ito, Akihiro and Suda, Tetsuji and Hakomori, Sen-itiroh and Saito, Seiichi and Sakai, Hideki}, issue = {5}, journal = {Glycoconjugate Journal}, month = {Jun}, note = {Stage-specific embryonic antigen-4 (SSEA-4), a specific marker for pluripotent stem cells, plays an important role in the malignant behavior of several cancers. Here, SSEA-4 expression was evaluated by immunohistochemistry using monoclonal antibody RM1 specific to SSEA-4 in 181 and 117 prostate cancer (PC) specimens obtained by biopsy and radical prostatectomy (RP), respectively. The relationships between SSEA-4 expression in cancer cells or the presence of SSEA-4-positive tumor-infiltrating immune cells (TICs) and clinicopathological parameters were analyzed. SSEA-4 expression in cancer cells was significantly associated with Gleason score, local progression, and lymph node and distant metastasis. In RP specimens, high SSEA-4 expression in cancer cells and the presence of SSEA-4-positive TICs were significant predictors of pT3, i.e., invasion and worse biochemical recurrence (BCR) after RP, respectively, in univariate analysis. In contrast, combination of high SSEA-4 expression in cancer cells and the presence of SSEA-4-positive TICs was an independent predictor for pT3 and BCR in multivariate analysis. Biologically this combination was also independently associated with suppression of apoptosis. Thus, the co-expression of SSEA-4 in cancer cells and TICs may have crucial roles in the malignant aggressiveness and prognosis of PC. Invasive potential and suppression of apoptosis may be linked to SSEA-4 expression., 論文}, pages = {409--418}, title = {Stage-specific embryonic antigen-4 is a histological marker reflecting the malignant behavior of prostate cancer}, volume = {36}, year = {2019} }