Comprehensive analysis of DNA repair gene variants and risk of meningioma.
BACKGROUND
Meningiomas account for up to 37% of all primary brain tumors. Genetic susceptibility to meningioma is well established, with the risk among relatives of meningioma patients being approximately threefold higher than that in the general population. A relationship between risk of meningioma and exposure to ionizing radiation is also well known and led us to examine whether variants in DNA repair genes contribute to disease susceptibility.


METHODS
We analyzed 1127 tagging single-nucleotide polymorphisms (SNPs) that were selected to capture most of the common variation in 136 DNA repair genes in five case-control series (631 case patients and 637 control subjects) from four countries in Europe. We also analyzed 388 putative functional SNPs in these genes for their association with meningioma. All statistical tests were two-sided.


RESULTS
The SNP rs4968451, which maps to intron 4 of the gene that encodes breast cancer susceptibility gene 1-interacting protein 1, was consistently associated with an increased risk of developing meningioma. Across the five studies, the association was highly statistically significant (trend odds ratio = 1.57, 95% confidence interval = 1.28 to 1.93; P(trend) = 8.95 x 10(-6); P = .009 after adjusting for multiple testing).


CONCLUSIONS
We have identified a novel association between rs4968451 and meningioma risk. Because approximately 28% of the European population are carriers of at-risk genotypes for rs4968451, the variant is likely to make a substantial contribution to the development of meningioma.
Bethke
Lara
L
Section of Cancer Genetics, Institute of Cancer Research, 15 Cotswold Rd, Sutton, Surrey SM2 5NG, UK.
Murray
Anne
A
Webb
Emily
E
Schoemaker
Minouk
M
Muir
Kenneth
K
McKinney
Patricia
P
Hepworth
Sarah
S
Dimitropoulou
Polyxeni
P
Lophatananon
Artitaya
A
Feychting
Maria
M
Lönn
Stefan
S
Ahlbom
Anders
A
Malmer
Beatrice
B
Henriksson
Roger
R
Auvinen
Anssi
A
Kiuru
Anne
A
Salminen
Tiina
T
Johansen
Christoffer
C
Christensen
Helle Collatz
HC
Kosteljanetz
Michael
M
Swerdlow
Anthony
A
Houlston
Richard
R
D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D004260:DNA Repair / Q000235:genetics*; D005060:Europe; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000235:genetics*; D008579:Meningioma / Q000235:genetics*; D008875:Middle Aged; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide; D018570:Risk Assessment; D012307:Risk Factors