Journal
BRITISH JOURNAL OF HAEMATOLOGY
Volume 153, Issue 3, Pages 341-350Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2141.2010.08424.x
Keywords
Non-Hodgkin lymphoma; single nucleotide polymorphisms; immunogenetics; case-control study
Categories
Funding
- National Institutes of Health (NIH) (National Cancer Institute (NCI))
- Public Health Service (PHS) [N01-PC-65064, N01-PC-67008, N01-PC-67009, N01-PC-67010, N02-PC-71105]
- NCI [CA62006]
- National Health and Medical Research Council of Australia [990920]
- The Cancer Council NSW
- The University of Sydney Medical Foundation
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P>The balance between T-helper 1 (Th1) and T-helper 2 (Th2) activity is critical in lymphoid cell development and differentiation. Immune dysfunction underlies lymphomagenesis, so an alteration in the regulation of key Th1/Th2 cytokines may lead to the development of non-Hodgkin lymphoma (NHL). To study the impact of polymorphisms in Th1/Th2 cytokines on NHL risk, we analyzed 145 tag single nucleotide polymorphisms (SNPs) in 17 Th1/Th2 cytokine and related genes in three population-based case-control studies (1946 cases and 1808 controls). Logistic regression was used to compute odds ratios (OR) for NHL and four major NHL subtypes in relation to tag SNP genotypes and haplotypes. A gene-based analysis adjusting for the number of tag SNPs genotyped in each gene showed significant associations with risk of NHL combined and one or more NHL subtypes for Th1 (IL12A and IL12RB1) and Th2 (IL4, IL10RB, and IL18) genes. The strongest association was for rs485497 in IL12A, which plays a central role in bridging the cellular and humoral pathways of innate resistance and antigen-specific adaptive immune responses (allele risk OR = 1 center dot 17; P(trend) = 0 center dot 00099). This SNP was also associated specifically with risk of follicular lymphoma (allele risk OR = 1 center dot 26; P(trend) = 0 center dot 0012). These findings suggest that genetic variation in Th1/Th2 cytokine genes may contribute to lymphomagenesis.
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