Common genetic variation associated with increased susceptibility to prostate cancer does not increase risk of radiotherapy toxicity.Citation formats
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Common genetic variation associated with increased susceptibility to prostate cancer does not increase risk of radiotherapy toxicity. / Ahmed, Mahbubl; Dorling, Leila; Kerns, Sarah; Fachal, Laura; Elliott, Rebecca; Partliament, Matt; Rosenstein, Barry S; Vega, Ana; Gómez-Caamaño, Antonio; Barnett, Gill; Dearnaley, David P; Hall, Emma; Sydes, Matt; Burnet, Neil; Pharoah, Paul D P; Eeles, Ros; West, Catharine M L.
In: Br J Cancer, Vol. 114, No. 10, 10.05.2016, p. 1165-74.Research output: Contribution to journal › Article › peer-review
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T1 - Common genetic variation associated with increased susceptibility to prostate cancer does not increase risk of radiotherapy toxicity.
AU - Ahmed, Mahbubl
AU - Dorling, Leila
AU - Kerns, Sarah
AU - Fachal, Laura
AU - Elliott, Rebecca
AU - Partliament, Matt
AU - Rosenstein, Barry S
AU - Vega, Ana
AU - Gómez-Caamaño, Antonio
AU - Barnett, Gill
AU - Dearnaley, David P
AU - Hall, Emma
AU - Sydes, Matt
AU - Burnet, Neil
AU - Pharoah, Paul D P
AU - Eeles, Ros
AU - West, Catharine M L
PY - 2016/5/10
Y1 - 2016/5/10
N2 - BACKGROUND: Numerous germline single-nucleotide polymorphisms increase susceptibility to prostate cancer, some lying near genes involved in cellular radiation response. This study investigated whether prostate cancer patients with a high genetic risk have increased toxicity following radiotherapy.METHODS: The study included 1560 prostate cancer patients from four radiotherapy cohorts: RAPPER (n=533), RADIOGEN (n=597), GenePARE (n=290) and CCI (n=150). Data from genome-wide association studies were imputed with the 1000 Genomes reference panel. Individuals were genetically similar with a European ancestry based on principal component analysis. Genetic risks were quantified using polygenic risk scores. Regression models tested associations between risk scores and 2-year toxicity (overall, urinary frequency, decreased stream, rectal bleeding). Results were combined across studies using standard inverse-variance fixed effects meta-analysis methods.RESULTS: A total of 75 variants were genotyped/imputed successfully. Neither non-weighted nor weighted polygenic risk scores were associated with late radiation toxicity in individual studies (P>0.11) or after meta-analysis (P>0.24). No individual variant was associated with 2-year toxicity.CONCLUSION: Patients with a high polygenic susceptibility for prostate cancer have no increased risk for developing late radiotherapy toxicity. These findings suggest that patients with a genetic predisposition for prostate cancer, inferred by common variants, can be safely treated using current standard radiotherapy regimens.
AB - BACKGROUND: Numerous germline single-nucleotide polymorphisms increase susceptibility to prostate cancer, some lying near genes involved in cellular radiation response. This study investigated whether prostate cancer patients with a high genetic risk have increased toxicity following radiotherapy.METHODS: The study included 1560 prostate cancer patients from four radiotherapy cohorts: RAPPER (n=533), RADIOGEN (n=597), GenePARE (n=290) and CCI (n=150). Data from genome-wide association studies were imputed with the 1000 Genomes reference panel. Individuals were genetically similar with a European ancestry based on principal component analysis. Genetic risks were quantified using polygenic risk scores. Regression models tested associations between risk scores and 2-year toxicity (overall, urinary frequency, decreased stream, rectal bleeding). Results were combined across studies using standard inverse-variance fixed effects meta-analysis methods.RESULTS: A total of 75 variants were genotyped/imputed successfully. Neither non-weighted nor weighted polygenic risk scores were associated with late radiation toxicity in individual studies (P>0.11) or after meta-analysis (P>0.24). No individual variant was associated with 2-year toxicity.CONCLUSION: Patients with a high polygenic susceptibility for prostate cancer have no increased risk for developing late radiotherapy toxicity. These findings suggest that patients with a genetic predisposition for prostate cancer, inferred by common variants, can be safely treated using current standard radiotherapy regimens.
KW - Aged
KW - European Continental Ancestry Group
KW - Genetic Predisposition to Disease
KW - Genome-Wide Association Study
KW - Germ-Line Mutation
KW - Humans
KW - Male
KW - Middle Aged
KW - Polymorphism, Single Nucleotide
KW - Principal Component Analysis
KW - Prostatic Neoplasms
KW - Radiation Injuries
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
KW - Research Support, N.I.H., Extramural
KW - Research Support, U.S. Gov't, Non-P.H.S.
U2 - 10.1038/bjc.2016.94
DO - 10.1038/bjc.2016.94
M3 - Article
C2 - 27070714
VL - 114
SP - 1165
EP - 1174
JO - BJC
JF - BJC
SN - 0007-0920
IS - 10
ER -