PMID- 9552030 OWN - NLM STAT- MEDLINE DCOM- 19980512 LR - 20220317 IS - 0732-183X (Print) IS - 0732-183X (Linking) VI - 16 IP - 4 DP - 1998 Apr TI - Correlation of p34cdc2 cyclin-dependent kinase overexpression, CD44s downregulation, and HER-2/neu oncogene amplification with recurrence in prostatic adenocarcinomas. PG - 1302-9 AB - PURPOSE: To test whether p34cdc2 overexpression, CD44s downregulation, and HER-2/neu amplification correlate with disease recurrence after radical prostatectomy, and to evaluate a possible biologic association between p34cdc2 and HER-2/neu expression. MATERIALS AND METHODS: Immunohistochemical (IHC) detection of both p34cdc2 cyclin-dependent kinase (CDK) and CD44s expression and fluorescence in situ hybridization (FISH)-based analysis of HER-2/neu gene status were performed on formalin-fixed, paraffin-embedded sections of 106 prostatic adenocarcinomas (PACs). Findings were correlated with Gleason grade, pathologic stage, DNA ploidy, and postsurgical biochemical disease recurrence. RESULTS: CDK overexpression correlated with tumor grade (P = .001), DNA ploidy (P = .001), pathologic stage (P = .04), and disease recurrence (P = .01). CD44s downregulation correlated with grade (P = .03), ploidy (P = .01), and recurrence (P = .02). HER-2/neu amplification correlated with grade (P = .001), ploidy (P = .001), and recurrence (P = .01). On multivariate analysis, CDK overexpression independently predicted recurrence (P = .001) after prostatectomy. CDK expression correlated with HER-2/neu status with 32 of 65 (49%) tumors that overexpressed CDK and showed concomitant HER-2/neu amplification (P = .04). CONCLUSION: This study showed that p34cdc2, CD44s, and HER-2/neu are variably expressed or amplified in prostatic carcinoma and that such alteration may affect tumor behavior. In addition, CDK overexpression and HER-2/neu amplification may be biologically related. FAU - Kallakury, B V AU - Kallakury BV AD - Department of Pathology and Laboratory Medicine, Albany Medical College, NY, USA. FAU - Sheehan, C E AU - Sheehan CE FAU - Ambros, R A AU - Ambros RA FAU - Fisher, H A AU - Fisher HA FAU - Kaufman, R P Jr AU - Kaufman RP Jr FAU - Muraca, P J AU - Muraca PJ FAU - Ross, J S AU - Ross JS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Oncol JT - Journal of clinical oncology : official journal of the American Society of Clinical Oncology JID - 8309333 RN - 0 (Hyaluronan Receptors) RN - EC 2.7.11.22 (Cyclin-Dependent Kinases) SB - IM MH - Adenocarcinoma/enzymology/genetics/*pathology/*surgery MH - Cyclin-Dependent Kinases/*metabolism MH - Down-Regulation MH - Gene Amplification MH - Genes, erbB-2/*genetics MH - Humans MH - Hyaluronan Receptors/*metabolism MH - In Situ Hybridization, Fluorescence MH - Male MH - Neoplasm Recurrence, Local/genetics MH - Ploidies MH - Prostatectomy MH - Prostatic Neoplasms/enzymology/genetics/*pathology/*surgery EDAT- 1998/04/29 06:29 MHDA- 2001/03/28 10:01 CRDT- 1998/04/29 06:29 PHST- 1998/04/29 06:29 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1998/04/29 06:29 [entrez] AID - 10.1200/JCO.1998.16.4.1302 [doi] PST - ppublish SO - J Clin Oncol. 1998 Apr;16(4):1302-9. doi: 10.1200/JCO.1998.16.4.1302.