PMID- 15284264 OWN - NLM STAT- MEDLINE DCOM- 20040827 LR - 20220317 IS - 0732-183X (Print) IS - 0732-183X (Linking) VI - 22 IP - 15 DP - 2004 Aug 1 TI - Her-2/neu overexpression and amplification in uterine papillary serous carcinoma. PG - 3126-32 AB - PURPOSE: Uterine papillary serous carcinoma (UPSC) is an aggressive subtype of endometrial cancer characterized by early metastasis, resistance to therapy, and a high mortality rate. Little is known about the biology of these tumors. Smaller studies suggest that Her-2/neu may be involved in the tumorigenesis of this disease. The purpose of this study was to evaluate the protein expression and gene amplification of Her-2/neu in UPSC and to determine its prognostic value. PATIENTS AND METHODS: Tumor tissue from 68 patients with UPSC treated at The University of Texas M.D. Anderson Cancer Center from 1989 to 2002 was available. Her-2/neu expression was evaluated by immunohistochemistry (IHC). Overexpression was defined as complete membrane staining in greater than 10% of the cells. In tumors with overexpression of Her-2/neu by IHC, fluorescence in situ hybridization (FISH) was performed to assess gene amplification. Clinical and pathologic information was obtained from medical records. RESULTS: Twelve (18%) of 68 tumors demonstrated Her-2/neu overexpression. Of these, only two showed gene amplification. When evaluating all 68 patients, Her-2/neu overexpression was associated with a poorer overall survival (OS; P = .008). In our multivariate Cox proportional hazards models, Her-2/neu IHC overexpression, lymph node status, and stage were each associated with OS (P < or = .05). CONCLUSION: Positive IHC overexpression of Her-2/neu was seen in 18% of UPSCs but was rarely correlated with Her-2/neu gene amplification. Overexpression of Her-2/neu was associated with a worse overall prognosis. The use of trastuzumab (Herceptin; Genentech, South San Francisco, CA) in women with UPSC should be further evaluated in a clinical trial setting. CI - Copyright 2004 American Society of Clinical Onocology FAU - Slomovitz, Brian M AU - Slomovitz BM AD - Department of Gynecologic Oncology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd, Unit 440, Houston, TX 77030-4009, USA. FAU - Broaddus, Russell R AU - Broaddus RR FAU - Burke, Thomas W AU - Burke TW FAU - Sneige, Nour AU - Sneige N FAU - Soliman, Pamela T AU - Soliman PT FAU - Wu, Weiguo AU - Wu W FAU - Sun, Charlotte C AU - Sun CC FAU - Munsell, Mark F AU - Munsell MF FAU - Gershenson, David M AU - Gershenson DM FAU - Lu, Karen H AU - Lu KH LA - eng PT - Journal Article PL - United States TA - J Clin Oncol JT - Journal of clinical oncology : official journal of the American Society of Clinical Oncology JID - 8309333 SB - IM MH - Aged MH - Aged, 80 and over MH - Cystadenocarcinoma, Papillary/*genetics/mortality MH - Female MH - *Gene Amplification MH - *Gene Expression MH - Genes, erbB-2/*genetics MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Middle Aged MH - Prognosis MH - Proportional Hazards Models MH - Survival Rate MH - Uterine Neoplasms/*genetics/mortality EDAT- 2004/07/31 05:00 MHDA- 2004/08/28 05:00 CRDT- 2004/07/31 05:00 PHST- 2004/07/31 05:00 [pubmed] PHST- 2004/08/28 05:00 [medline] PHST- 2004/07/31 05:00 [entrez] AID - 22/15/3126 [pii] AID - 10.1200/JCO.2004.11.154 [doi] PST - ppublish SO - J Clin Oncol. 2004 Aug 1;22(15):3126-32. doi: 10.1200/JCO.2004.11.154.