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Title: Host immune gene polymorphisms in combination with clinical and demographic factors predict late survival in diffuse large B-cell lymphoma patients in the pre-rituximab era.
Authors: Habermann TM,  Wang SS,  Maurer MJ,  Morton LM,  Lynch CF,  Ansell SM,  Hartge P,  Severson RK,  Rothman N,  Davis S,  Geyer SM,  Cozen W,  Chanock SJ,  Cerhan JR
Journal: Blood
Date: 2008 Oct 1
Branches: MEB, REB, EBP, OEEB
PubMed ID: 18633131
PMC ID: PMC2556607
Abstract: To evaluate the hypothesis that host germ line variation in immune genes is associated with overall survival in diffuse large B-cell lymphoma (DLBCL), we genotyped 73 single nucleotide polymorphisms (SNPs) from 44 candidate genes in 365 DLBCL patients diagnosed from 1998 to 2000. We estimated hazard ratios (HRs) and 95% confidence intervals (CIs) for the association of SNPs with survival after adjusting for clinical factors. During follow-up, 96 (26%) patients died, and the median follow-up was 57 months for surviving patients. The observed survival of this cohort was consistent with population-based estimates conditioned on surviving 12 months. An IL10 haplotype (global P = .03) and SNPs in IL8RB (rs1126580; HR(AG/GG) = 2.11; CI, 1.28-3.50), IL1A (rs1800587; HR(CT/TT) = 1.90; CI, 1.26-2.87), TNF (rs1800629; HR(AG/GG) = 1.44; CI, 0.95-2.18), and IL4R (rs2107356; HR(CC/CT) = 1.97; CI, 1.01-3.83) were the strongest predictors of overall survival. A risk score that combined the latter 4 SNPs with clinical factors was strongly associated with survival in a Cox model (P = 6.0 x 10(-11)). Kaplan-Meier 5-year survival estimates for low, intermediate-low, intermediate-high, and high-risk patients were 94%, 79%, 60%, and 48%, respectively. These data support a role for germ line variation in immune genes, particularly genes associated with a proinflammatory state, as predictors of late survival in DLBCL.