PMID- 16012182 OWN - NLM STAT- MEDLINE DCOM- 20060127 LR - 20200203 IS - 0923-7534 (Print) IS - 0923-7534 (Linking) VI - 16 IP - 9 DP - 2005 Sep TI - Retinoid receptors in ovarian cancer: expression and prognosis. PG - 1477-87 AB - BACKGROUND: Ovarian cancer is frequently lethal despite aggressive multimodal therapy, and new therapies are therefore needed. Retinoids are potential candidate drugs: they prevent the development of ovarian carcinoma and enhance the efficacy of cytotoxic drugs in ovarian cancer cells. At present, little is known about the retinoid receptor expression in ovarian cancer. PATIENTS AND METHODS: The retinoid receptors comprise two classes, retinoic acid receptors (RARs) and retinoid X receptors (RXRs), each with three subclasses, alpha, beta and gamma. We investigated the expression of the subtypes RARalpha, RARgamma, RXRalpha and RXRbeta by immunohistochemistry in ovarian cancers of 80 patients, and assessed their prognostic significance. In addition, we quantified the expression of retinoid receptor mRNA using real-time PCR and correlated the results with clinical characteristics. RESULTS: RARalpha and RXRbeta were highly expressed in a majority of ovarian cancers, particularly in advanced stages. High expression of RARalpha was an independent negative prognostic factor of survival in addition to FIGO stage, age and p53 accumulation. The mRNA expression of retinoid receptors did not correlate with clinical properties of the tumors. CONCLUSIONS: Retinoic acid receptors are frequently and strongly expressed in epithelial ovarian cancer and may be indicators of an adverse prognosis. This study provides the molecular basis for the therapeutic use of retinoids in ovarian cancer. FAU - Kaiser, P C AU - Kaiser PC AD - University Hospital Berne, Department of Medical Oncology, Bern, Switzerland. FAU - Korner, M AU - Korner M FAU - Kappeler, A AU - Kappeler A FAU - Aebi, S AU - Aebi S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20050712 PL - England TA - Ann Oncol JT - Annals of oncology : official journal of the European Society for Medical Oncology JID - 9007735 RN - 0 (DNA Primers) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Retinoic Acid) SB - IM MH - Aged MH - Base Sequence MH - DNA Primers MH - Female MH - Humans MH - Immunohistochemistry MH - Middle Aged MH - Ovarian Neoplasms/*metabolism/pathology MH - Prognosis MH - RNA, Messenger/genetics MH - Receptors, Retinoic Acid/classification/genetics/*metabolism MH - Reverse Transcriptase Polymerase Chain Reaction EDAT- 2005/07/14 09:00 MHDA- 2006/01/28 09:00 CRDT- 2005/07/14 09:00 PHST- 2005/07/14 09:00 [pubmed] PHST- 2006/01/28 09:00 [medline] PHST- 2005/07/14 09:00 [entrez] AID - S0923-7534(19)54972-9 [pii] AID - 10.1093/annonc/mdi265 [doi] PST - ppublish SO - Ann Oncol. 2005 Sep;16(9):1477-87. doi: 10.1093/annonc/mdi265. Epub 2005 Jul 12.