Abstract:
:Recent studies suggest that hereditary prostate cancer is a complex disease involving multiple susceptibility genes and variable phenotypic expression. While conducting a genomewide search on 162 North American families with > or =3 members affected with prostate cancer (PRCA), we found evidence for linkage to chromosome 20q13 with two-point parametric LOD scores >1 at multiple sites, with the highest two-point LOD score of 2.69 for marker D20S196. The maximum multipoint NPL score for the entire data set was 3.02 (P=.002) at D20S887. On the basis of findings from previous reports, families were stratified by the presence (n=116) or absence (n=46) of male-to-male transmission, average age of diagnosis (<66 years, n=73; > or =66 years, n=89), and number of affected individuals (<5, n=101; > or =5, n=61) for further analysis. The strongest evidence of linkage was evident with the pedigrees having <5 family members affected with prostate cancer (multipoint NPL 3.22, P=.00079), a later average age of diagnosis (multipoint NPL 3.40, P=.0006), and no male-to-male transmission (multipoint NPL 3.94, P=.00007). The group of patients having all three of these characteristics (n=19) had a multipoint NPL score of 3.69 (P=.0001). These results demonstrate evidence for a PRCA susceptibility locus in a subset of families that is distinct from the groups more likely to be linked to previously identified loci.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Berry R,Schroeder JJ,French AJ,McDonnell SK,Peterson BJ,Cunningham JM,Thibodeau SN,Schaid DJdoi
10.1086/302994subject
Has Abstractpub_date
2000-07-01 00:00:00pages
82-91issue
1eissn
0002-9297issn
1537-6605pii
S0002-9297(07)62434-3journal_volume
67pub_type
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