PMID- 10391090 OWN - NLM STAT- MEDLINE DCOM- 19990719 LR - 20190513 IS - 0910-5050 (Print) IS - 0910-5050 (Linking) VI - 90 IP - 5 DP - 1999 May TI - Mutational analysis of beta-catenin gene in Japanese ovarian carcinomas: frequent mutations in endometrioid carcinomas. PG - 510-5 AB - To investigate the contribution of the beta-catenin gene to the development of ovarian carcinomas, mutational analysis of exon 3 of the beta-catenin gene was conducted. We analyzed 61 primary ovarian carcinomas, consisting of 49 non-endometrioid-type and 12 endometrioid-type tumors, for genetic alteration of the beta-catenin gene. Five carcinomas showed beta-catenin mutations (S37C, T41I, T41A), including 4 (33%) of 12 endometrioid-type tumors and 1 (14%) of 7 mucinous-type tumors. All of these mutations altered at the serine/threonine residues that are potential sites of GSK3-beta phosphorylation. We detected no carcinomas with interstitial deletion involving exon 3 of beta-catenin. Furthermore, we immunohistochemically studied 27 of the 61 ovarian carcinomas. Both nuclear and cytoplasmic beta-catenin expressions were demonstrated in 4 of the 27 ovarian carcinomas for which tissue samples were available for examination. All 4 cases exhibited mutations in exon 3 of beta-catenin, including a mucinous carcinoma. Our results suggested that beta-catenin gene mutation at potential GSK3-beta phosphorylation sites results in accumulation of beta-catenin protein within the cells and its translocation to nuclei. Accumulated beta-catenin protein may be involved in the development of endometrioid-type ovarian carcinomas, and some mucinous-type ovarian carcinomas. FAU - Sagae, S AU - Sagae S AD - Department of Obstetrics and Gynecology, Cancer Research Institute, Sapporo Medical University School of Medicine, Hokkaido. sagaes@sapmed.ac.jp FAU - Kobayashi, K AU - Kobayashi K FAU - Nishioka, Y AU - Nishioka Y FAU - Sugimura, M AU - Sugimura M FAU - Ishioka, S AU - Ishioka S FAU - Nagata, M AU - Nagata M FAU - Terasawa, K AU - Terasawa K FAU - Tokino, T AU - Tokino T FAU - Kudo, R AU - Kudo R LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Japan TA - Jpn J Cancer Res JT - Japanese journal of cancer research : Gann JID - 8509412 RN - 0 (CTNNB1 protein, human) RN - 0 (Cytoskeletal Proteins) RN - 0 (Trans-Activators) RN - 0 (beta Catenin) SB - IM MH - Adult MH - Carcinoma, Endometrioid/*genetics MH - Cytoskeletal Proteins/*genetics MH - *DNA Mutational Analysis MH - Female MH - Genome, Human MH - Humans MH - Immunohistochemistry MH - Japan MH - Middle Aged MH - Ovarian Neoplasms/*genetics MH - *Trans-Activators MH - beta Catenin PMC - PMC5926097 EDAT- 1999/07/03 00:00 MHDA- 1999/07/03 00:01 CRDT- 1999/07/03 00:00 PHST- 1999/07/03 00:00 [pubmed] PHST- 1999/07/03 00:01 [medline] PHST- 1999/07/03 00:00 [entrez] AID - S0910505099801112 [pii] AID - 10.1111/j.1349-7006.1999.tb00777.x [doi] PST - ppublish SO - Jpn J Cancer Res. 1999 May;90(5):510-5. doi: 10.1111/j.1349-7006.1999.tb00777.x.