title: Allelic imbalance in hereditary and sporadic prostate cancer.
abstract: BACKGROUND
  In this study, we evaluate the pattern of allelic imbalance (AI) in both sporadic prostate cancer (SPC) and hereditary prostate cancer (HPC) at loci that frequently show allelic imbalance in sporadic prostate cancer, or are believed to have a putative role in the disease.
  
  
  METHODS
  DNA obtained from 35 sporadic tumors and 46 hereditary tumors were tested for AI, by using a panel of 35 microsatellite markers.
  
  
  RESULTS
  Chromosomal regions that display high frequencies of AI (>or=30%) in HPC include 1q, 5q, 7q, 8p, 13q, 16q, 17q, 18q, and 20q. In SPC, high frequencies of AI were found at 5q, 7q, 8p, 10q, 13q. Main differences (delta >or= 20%) in AI between HPC and SPC were at 1q, 10q, 17q, 18q, and 20q.
  
  
  CONCLUSIONS
  AI at the prostate cancer susceptibility loci HPC1, PCaP, and HPC20 was seen more often in HPC compared with SPC. It appears that there are marked differences in the pattern of AI between sporadic and hereditary PCa.
authors.affiliation: Department of Urology, University Medical Center Nijmegen, The Netherlands.
authors.forename: Bas A J
authors.initials: BA
authors.lastname: Verhage
authors.forename: Kjeld
authors.initials: K
authors.lastname: van Houwelingen
authors.forename: T Emiel G
authors.initials: TE
authors.lastname: Ruijter
authors.forename: Lambertus A
authors.initials: LA
authors.lastname: Kiemeney
authors.forename: Jack A
authors.initials: JA
authors.lastname: Schalken
mesh_terms: D000368:Aged; D022981:Allelic Imbalance / Q000235:genetics*; D004273:DNA, Neoplasm / Q000235:genetics*; D016147:Genes, Tumor Suppressor; D005819:Genetic Markers; D006801:Humans; D008297:Male; D018895:Microsatellite Repeats; D008875:Middle Aged; D011471:Prostatic Neoplasms / Q000235:genetics* / Q000473:pathology
chemical_list: D004273:DNA, Neoplasm; D005819:Genetic Markers