[Analysis of loss of heterozygosity on chromosome 8 in human prostate carcinoma and high grade prostatic intraepithelial neoplasia].
OBJECTIVE
To detect the status of loss of heterozygosity (LOH) on chromosome 8 in prostate carcinoma and high grade prostatic intraepithelial neoplasia (PIN).


METHODS
Pure DNA was obtained from prostate neoplasms and normal tissues by tissue microdissection. LOH on chromosome 8 was detected by PCR based microsatellite polymorphism analysis technique using 14 pairs of microsatellite primers in 10 samples of prostate carcinoma and 10 samples of high grade PIN.


RESULTS
There were different frequencies of LOH on chromosome 8 in 10 samples of prostate carcinoma. 8p23.1-p23.2 and 8p21-p22 were two high-frequency LOH regions. LOH on chromosome 8 was detected in 3 samples of high grade PIN.


CONCLUSIONS
There were high-frequency LOH regions on chromosome 8 of prostate carcinoma, located on 8p23.1-p23.2 and 8p21-p22. High grade PIN and prostate carcinoma share the same allelic loss on 8p. Tumor suppressor genes located at these two regions may be potentially involved in the initiation and progression of prostate carcinoma.
Wang
Zhaoming
Z
Department of Pathology, First Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang 310003, China.
Lai
Fernand Mac-Moune
FM
D000368:Aged; D000369:Aged, 80 and over; D002898:Chromosomes, Human, Pair 8; D006801:Humans; D019656:Loss of Heterozygosity; D008297:Male; D008875:Middle Aged; D019048:Prostatic Intraepithelial Neoplasia / Q000235:genetics*; D011471:Prostatic Neoplasms / Q000235:genetics*