Transmission/disequilibrium tests of androgen receptor and glutathione S-transferase pi variants in prostate cancer families.
Population-based case-control studies have found relationships between risk of prostate cancer and genetic polymorphisms in the CAG repeat and GGC repeat of the X-linked androgen receptor gene (AR) as well as the autosomal gene coding for glutathione S-transferase pi (GSTP1). This family-based study utilized the transmission disequilibrium test to examine whether there was evidence that these polymorphisms could account for familial aggregation of prostate cancer. Seventy-nine North American pedigrees were studied. Most of these families had 3 or more affected first-degree relatives. Genotype information was obtained on 578 individuals. The reconstruction combined transmission disequilibrium test (RC-TDT) was used to test for linkage. There was no evidence of linkage to the CAG and GGC repeat sequences in the AR gene or the pentanucleotide (ATAAA) repeat in the GSTP1 gene when each allele was analyzed separately or when alleles were grouped by repeat length. Our findings do not support the hypothesis that familial clustering of prostate cancer in high-risk families is attributable to these genetic variants.
Ho
Gloria Y F
GY
Department of Epidemiology and Social Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA. ho@aecom.yu.edu
Knapp
Michael
M
Freije
Diha
D
Nelson
William G
WG
Smith
Jeffrey R
JR
Carpten
John D
JD
Bailey-Wilson
Joan E
JE
Beaty
Terri H
TH
Petersen
Gloria
G
Xu
Jianfeng
J
Kamensky
Victor
V
Walsh
Patrick C
PC
Isaacs
William B
WB
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D017931:DNA Primers / Q000737:chemistry; D004273:DNA, Neoplasm / Q000097:blood / Q000235:genetics*; D018562:Disease Transmission, Infectious; D051549:Glutathione S-Transferase pi; D005982:Glutathione Transferase / Q000235:genetics*; D006801:Humans; D007527:Isoenzymes / Q000235:genetics*; D015810:Linkage Disequilibrium / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D011471:Prostatic Neoplasms / Q000235:genetics*; D011944:Receptors, Androgen / Q000235:genetics*; D012091:Repetitive Sequences, Nucleic Acid; D012307:Risk Factors; D014960:X Chromosome / Q000235:genetics
D017931:DNA Primers; D004273:DNA, Neoplasm; D007527:Isoenzymes; D011944:Receptors, Androgen; C496556:GSTP1 protein, human; D051549:Glutathione S-Transferase pi; D005982:Glutathione Transferase