TY - JOUR
T1 - Genome-wide linkage analysis of 1,233 prostate cancer pedigrees from the International Consortium for prostate cancer genetics using novel sumLINK and sumLOD analyses
AU - Christensen, G. Bryce
AU - Baffoe-Bonnie, Agnes B.
AU - George, Asha
AU - Powell, Isaac
AU - Bailey-Wilson, Joan E.
AU - Carpten, John D.
AU - Giles, Graham G.
AU - Hopper, John L.
AU - Severi, Gianluca
AU - English, Dallas R.
AU - Foulkes, William D.
AU - Maehle, Lovise
AU - Moller, Pal
AU - Eeles, Ros
AU - Easton, Douglas
AU - Badzioch, Michael D.
AU - Whittemore, Alice S.
AU - Oakley-Girvan, Ingrid
AU - Hsieh, Chih Lin
AU - Dimitrov, Latchezar
AU - Xu, Jianfeng
AU - Stanford, Janet L.
AU - Johanneson, Bo
AU - Deutsch, Kerry
AU - McIntosh, Laura
AU - Ostrander, Elaine A.
AU - Wiley, Kathleen E.
AU - Isaacs, Sarah D.
AU - Walsh, Patrick C.
AU - Isaacs, William B.
AU - Thibodeau, Stephen N.
AU - McDonnell, Shannon K.
AU - Hebbring, Scott
AU - Schaid, Daniel J.
AU - Lange, Ethan M.
AU - Cooney, Kathleen A.
AU - Tammela, Teuvo L.J.
AU - Schleutker, Johanna
AU - Paiss, Thomas
AU - Maier, Christiane
AU - Grönberg, Henrik
AU - Wiklund, Fredrik
AU - Emanuelsson, Monica
AU - Farnham, James M.
AU - Cannon-Albright, Lisa A.
AU - Camp, Nicola J.
PY - 2010/5/15
Y1 - 2010/5/15
N2 - BACKGROUND. Prostate cancer (PC) is generally believed to have a strong inherited component, but the search for susceptibility genes has been hindered by the effects of genetic heterogeneity. The recently developed sumLINK and sumLOD statistics are powerful tools for linkage analysis in the presence of heterogeneity. METHODS. We performed a secondary analysis of 1,233 PC pedigrees from the International Consortium for Prostate Cancer Genetics (ICPCG) using two novel statistics, the sumLINK and sumLOD. For both statistics, dominant and recessive genetic models were considered. False discovery rate (FDR) analysis was conducted to assess the effects of multiple testing. RESULTS. Our analysis identified significant linkage evidence at chromosome 22q12, confirming previous findings by the initial conventional analyses of the same ICPCG data. Twelve other regions were identified with genome-wide suggestive evidence for linkage. Seven regions (1q23, 5q11, 5q35, 6p21, 8q12, 11q13, 20p11-q11) are near loci previously identified in the initial ICPCG pooled data analysis or the subset of aggressive PC pedigrees. Three other regions (1p12, 8p23, 19q13) confirm loci reported by others, and two (2p24, 6q27) are novel susceptibility loci. FDR testing indicates that over 70% of these results are likely true positive findings. Statistical recombinant mapping narrowed regions to an average of 9 cM. CONCLUSIONS. Our results represent genomic regions with the greatest consistency of positive linkage evidence across a very large collection of high-risk PC pedigrees using new statistical tests that deal powerfully with heterogeneity. These regions are excellent candidates for further study to identify PC predisposition genes.
AB - BACKGROUND. Prostate cancer (PC) is generally believed to have a strong inherited component, but the search for susceptibility genes has been hindered by the effects of genetic heterogeneity. The recently developed sumLINK and sumLOD statistics are powerful tools for linkage analysis in the presence of heterogeneity. METHODS. We performed a secondary analysis of 1,233 PC pedigrees from the International Consortium for Prostate Cancer Genetics (ICPCG) using two novel statistics, the sumLINK and sumLOD. For both statistics, dominant and recessive genetic models were considered. False discovery rate (FDR) analysis was conducted to assess the effects of multiple testing. RESULTS. Our analysis identified significant linkage evidence at chromosome 22q12, confirming previous findings by the initial conventional analyses of the same ICPCG data. Twelve other regions were identified with genome-wide suggestive evidence for linkage. Seven regions (1q23, 5q11, 5q35, 6p21, 8q12, 11q13, 20p11-q11) are near loci previously identified in the initial ICPCG pooled data analysis or the subset of aggressive PC pedigrees. Three other regions (1p12, 8p23, 19q13) confirm loci reported by others, and two (2p24, 6q27) are novel susceptibility loci. FDR testing indicates that over 70% of these results are likely true positive findings. Statistical recombinant mapping narrowed regions to an average of 9 cM. CONCLUSIONS. Our results represent genomic regions with the greatest consistency of positive linkage evidence across a very large collection of high-risk PC pedigrees using new statistical tests that deal powerfully with heterogeneity. These regions are excellent candidates for further study to identify PC predisposition genes.
KW - Cancer
KW - Genetic epidemiology
KW - Meta analysis
KW - Predisposition
KW - Susceptibility
UR - http://www.scopus.com/inward/record.url?scp=77951839049&partnerID=8YFLogxK
U2 - 10.1002/pros.21106
DO - 10.1002/pros.21106
M3 - Article
C2 - 20333727
AN - SCOPUS:77951839049
SN - 0270-4137
VL - 70
SP - 735
EP - 744
JO - Prostate
JF - Prostate
IS - 7
ER -