PMID- 11172902 OWN - NLM STAT- MEDLINE DCOM- 20010322 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 124 IP - 2 DP - 2001 Jan 15 TI - Loss of the short arm of the Y chromosome in human prostate carcinoma. PG - 122-6 AB - A change in Y chromosome number is one of the many cytogenetic abnormalities reported in human prostate tumors. However, reports in the literature have varied regarding the frequency of Y loss or gain and the significance of Y aneusomy with respect to the biology of the disease. We have conducted an analysis of the Y chromosome in malignant and benign hyperplastic human prostate epithelium in order to determine whether regional Y loss occurs in prostate cancer. To accomplish this we performed dual-color fluorescence in situ hybridization (FISH) on serial sections of paraffin-embedded prostate tumor tissues using either a Yp (SRY), Ycen (alpha-satellite) or Yq (satellite 3) probe, and an Xcen (alpha-satellite) probe that served as a control for hybridization and nuclear truncation. The results of our FISH analysis demonstrated loss of Yp in the malignant epithelium of 14/40 (35%) prostate tumor sections examined. We also found loss of Yq in 4/40 (10%) of the samples, with one of these exhibiting accompanying Yp loss. The remaining samples, 23/40 (58%), retained both Yp and Yq markers, with no evidence of either Ycen loss or Y gain in any of the tumor samples examined. In addition, Y loss was detected in the benign hyperplastic regions in nearly one-half of the tissue sections that exhibited Y loss in the malignant epithelium. These results demonstrate that regional chromosome Y loss occurs in prostate cancer, that loss of Yp is the most frequent event, and suggest that this loss may in some cases be a precursor to prostate malignancy. FAU - Jordan, J J AU - Jordan JJ AD - Department of Radiation Oncology, Fox Chase Cancer Center, 7701 Burholme Avenue, Philadelphia, PA, USA. FAU - Hanlon, A L AU - Hanlon AL FAU - Al-Saleem, T I AU - Al-Saleem TI FAU - Greenberg, R E AU - Greenberg RE FAU - Tricoli, J V AU - Tricoli JV LA - eng GR - R01-CA6130/CA/NCI NIH HHS/United States GR - UO1-CA5189/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 0 (DNA Probes) RN - 0 (DNA-Binding Proteins) RN - 0 (Nuclear Proteins) RN - 0 (SRY protein, human) RN - 0 (Sex-Determining Region Y Protein) RN - 0 (Transcription Factors) SB - IM MH - Adult MH - Age Factors MH - Aged MH - *Chromosome Deletion MH - DNA Probes MH - DNA-Binding Proteins MH - Humans MH - In Situ Hybridization, Fluorescence/methods MH - Male MH - Middle Aged MH - *Nuclear Proteins MH - Prostatic Hyperplasia/genetics/pathology MH - Prostatic Neoplasms/*genetics/pathology MH - Sex-Determining Region Y Protein MH - *Transcription Factors MH - *Y Chromosome EDAT- 2001/02/15 11:00 MHDA- 2001/03/27 10:01 CRDT- 2001/02/15 11:00 PHST- 2001/02/15 11:00 [pubmed] PHST- 2001/03/27 10:01 [medline] PHST- 2001/02/15 11:00 [entrez] AID - S0165-4608(00)00340-X [pii] AID - 10.1016/s0165-4608(00)00340-x [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2001 Jan 15;124(2):122-6. doi: 10.1016/s0165-4608(00)00340-x.