PMID- 17134545 OWN - NLM STAT- MEDLINE DCOM- 20090112 LR - 20160818 IS - 0529-5807 (Print) IS - 0529-5807 (Linking) VI - 35 IP - 9 DP - 2006 Sep TI - [Relationship between chromosome 8 alterations and Gleason score in prostatic adenocarcinoma]. PG - 523-8 AB - OBJECTIVE: To study the gain of chromosome 8 and c-myc gene and lipoprotein lipase gene status in prostatic adenocarcinoma of Chinese patients, and to analyze the relationship between chromosome 8 alterations and Gleason score of prostatic cancer. METHODS: Formalin-fixed, paraffin-embedded prostatic biopsy tissues from 34 Chinese patients with untreated prostatic adenocarcinoma were studied by three-color fluorescence in situ hybridization (FISH) using ProVysion(TM) probe kit. The materials included 1 case with Gleason score 5, 10 cases with Gleason score 6, 14 cases with Gleason score 7, 4 cases with Gleason score 8 and 5 cases with Gleason score 9. The relationship between Gleason score and chromosome 8 aneusomy, c-myc and lipoprotein lipase gene copy number, including gene amplification or deletion, were analyzed. RESULTS: Seventeen (50%) of the 34 cases studied had gain of chromosome 8, while 21 cases (61.8%) had gain of c-myc gene copy number, 15 cases (44.1%) had lipoprotein lipase gene monosomy, 23 cases (67.6%) had c-myc gene amplification, 21 cases (61.8%) had deletion of lipoprotein lipase gene and 16 cases (47.1%) had lipoprotein lipase gene deletion coupled with c-myc gene amplification. In general, at least one type of chromosome 8 alteration was identified in 85.3% of cases (29/34). Gain of chromosome 8 was strong significant associated with Gleason score (P = 0.0006). A positive correlation between increased c-myc copy number and high Gleason score was also noted (P = 0.0035). On the other hand, loss of lipoprotein lipase gene was negatively correlated with high Gleason score (P = 0.0383). In addition, the association of c-myc gene amplification with high Gleason score was noted after age adjustment (P = 0.0462). CONCLUSIONS: Alterations in chromosome 8 are common in prostatic adenocarcinoma occurring in Chinese patients. There is a correlation between Gleason score and gain of chromosome 8, increased c-myc gene copy number, c-myc gene amplification and lipoprotein lipase gene deletion. C-myc gene amplification accompanied by lipoprotein lipase gene deletion is also a common occurrence in prostatic cancer. Our data suggest that chromosome 8 alterations may play some roles in the development and progression of prostatic adenocarcinoma. FAU - Zeng, Xuan AU - Zeng X AD - Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China. FAU - Wu, Sha-fei AU - Wu SF FAU - Xu, Qun AU - Xu Q FAU - Xiao, Yu AU - Xiao Y FAU - Liu, Tong-hua AU - Liu TH LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Bing Li Xue Za Zhi JT - Zhonghua bing li xue za zhi = Chinese journal of pathology JID - 0005331 RN - 0 (Proto-Oncogene Proteins c-myc) RN - EC 3.1.1.34 (Lipoprotein Lipase) SB - IM MH - Adenocarcinoma/classification/*genetics/*pathology MH - Aged MH - Aged, 80 and over MH - *Chromosome Aberrations MH - Chromosomes, Human, Pair 8/*genetics MH - Gene Deletion MH - Gene Dosage MH - Humans MH - In Situ Hybridization, Fluorescence MH - Lipoprotein Lipase/genetics MH - Male MH - Middle Aged MH - Prostatic Neoplasms/classification/genetics/*pathology MH - Proto-Oncogene Proteins c-myc/genetics EDAT- 2006/12/01 09:00 MHDA- 2009/01/13 09:00 CRDT- 2006/12/01 09:00 PHST- 2006/12/01 09:00 [pubmed] PHST- 2009/01/13 09:00 [medline] PHST- 2006/12/01 09:00 [entrez] PST - ppublish SO - Zhonghua Bing Li Xue Za Zhi. 2006 Sep;35(9):523-8.