PMID- 19207611 OWN - NLM STAT- MEDLINE DCOM- 20090715 LR - 20151119 IS - 1442-2042 (Electronic) IS - 0919-8172 (Linking) VI - 16 IP - 3 DP - 2009 Mar TI - Estrogen receptor-binding fragment-associated gene 9 expression and its clinical significance in human testicular cancer. PG - 329-32 LID - 10.1111/j.1442-2042.2008.02233.x [doi] AB - OBJECTIVES: We previously demonstrated that estrogen receptor-binding fragment-associated gene 9 (EBAG9) is a tumor promoting factor in renal cell carcinoma (Ogushi T, Cancer Res. 2005; 65: 3700). Here, we evaluated EBAG9 expression and its clinical significance in normal and malignant human testicular tissues. METHODS: We investigated the expression of EBAG9 in 90 testicular specimens (28 benign testicular tissue and 62 testicular germ cell tumor samples) by immunohistochemistry using rabbit polyclonal anti-EBAG9 antibody. RESULTS: Positive immunostaining of EBAG9 in the cytoplasm was found in 32 (52%) cancerous lesions, whereas the immunoreactivity of EBAG9 was weak in benign testicular tissues. Serum lactate dehydrogenaze (LDH) level was significantly higher in EBAG9-positive cases (715.0 +/- 727.3) compared with the negative cases (221.4 +/- 126.8) (P = 0.0016). The EBAG9-positive cases among the patients with advanced clinical stage (Stage II and III) more frequently belonged to the intermediate or poor risk group in the International Germ Cell Consensus Prognostic Classification System (IGCCPCS), compared with the EBAG9-negative cases (P = 0.0012). CONCLUSIONS: These findings suggest that increased expression of EBAG9 may play a significant role in cancer progression and aggressiveness in testicular germ cell tumors. FAU - Fujimura, Tetsuya AU - Fujimura T AD - Department of Urology, Faculty of Medicine, The University of Tokyo, Tokyo, Japan. FAU - Takahashi, Satoru AU - Takahashi S FAU - Urano, Tomohiko AU - Urano T FAU - Xiaoqiang, Liu AU - Xiaoqiang L FAU - Ogushi, Tetsuo AU - Ogushi T FAU - Muramatsu, Masami AU - Muramatsu M FAU - Ouchi, Yasuyoshi AU - Ouchi Y FAU - Kitamura, Tadaichi AU - Kitamura T FAU - Homma, Yukio AU - Homma Y FAU - Inoue, Satoshi AU - Inoue S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090120 PL - Australia TA - Int J Urol JT - International journal of urology : official journal of the Japanese Urological Association JID - 9440237 RN - 0 (Antigens, Neoplasm) RN - 0 (Biomarkers, Tumor) RN - 0 (EBAG9 protein, human) SB - IM MH - Adolescent MH - Adult MH - Age Factors MH - Aged MH - Antigens, Neoplasm/*genetics/metabolism MH - Biomarkers, Tumor/genetics MH - Cohort Studies MH - Frozen Sections MH - *Gene Expression Regulation, Neoplastic MH - Humans MH - Immunohistochemistry MH - Kaplan-Meier Estimate MH - Male MH - Middle Aged MH - Neoplasms, Germ Cell and Embryonal/*genetics/pathology/surgery MH - Orchiectomy/methods MH - Probability MH - Prognosis MH - Retrospective Studies MH - Risk Assessment MH - Sensitivity and Specificity MH - Statistics, Nonparametric MH - Survival Analysis MH - Testicular Neoplasms/*genetics/mortality/pathology/surgery MH - Young Adult EDAT- 2009/02/12 09:00 MHDA- 2009/07/16 09:00 CRDT- 2009/02/12 09:00 PHST- 2009/02/12 09:00 [entrez] PHST- 2009/02/12 09:00 [pubmed] PHST- 2009/07/16 09:00 [medline] AID - IJU2233 [pii] AID - 10.1111/j.1442-2042.2008.02233.x [doi] PST - ppublish SO - Int J Urol. 2009 Mar;16(3):329-32. doi: 10.1111/j.1442-2042.2008.02233.x. Epub 2009 Jan 20.