Document Detail


The major histocompatibility complex conserved extended haplotype 8.1 in AIDS-related non-Hodgkin lymphoma.
MedLine Citation:
PMID:  19654554     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Two single nucleotide polymorphisms (SNPs) in adjacent genes, lymphotoxin alpha (LTA +252G, rs909253 A>G) and tumor necrosis factor (TNF -308A, rs1800629 G>A), form the G-A haplotype repeatedly associated with increased risk of non-Hodgkin lymphoma (NHL) in individuals uninfected with HIV-1. This association has been observed alone or in combination with human leukocyte antigens HLA-B*08 or HLA-DRB1*03 in the major histocompatibility complex (MHC). Which gene variant on this highly conserved extended haplotype (CEH 8.1) in whites most likely represents a true etiologic factor remains uncertain.
OBJECTIVE: We aimed to determine whether the reported association of the G-A haplotype of LTA-TNF with non-AIDS NHL also occurs with AIDS-related NHL.
METHODS: SNPs in LTA and TNF and in 6 other genes nearby were typed in 140 non-Hispanic European American pairs of AIDS-NHL cases and matched controls selected from HIV-infected men in the Multicenter AIDS Cohort Study.
RESULTS: The G-A haplotype and a 4-SNP haplotype in the neighboring gene cluster (rs537160 (A) rs1270942 (G), rs2072633 (A), and rs6467 (C)) were associated with AIDS-NHL (odds ratio = 2.7, 95% confidence interval: 1.5 to 4.8, P = 0.0009; and odds ratio = 3.2, 95% confidence interval: 1.6 to 6.6, P = 0.0008; respectively). These 2 haplotypes occur in strong linkage disequilibrium with each other on CEH 8.1.
CONCLUSION: The CEH 8.1-specific haplotype association of MHC class III variants with AIDS-NHL closely resembles that observed for non-AIDS NHL. Corroboration of an MHC determinant of AIDS and non-AIDS NHL alike would imply an important pathogenetic mechanism common to both.
Authors:
Brahim Aissani; Kisani M Ogwaro; Sadeep Shrestha; Jianming Tang; Elizabeth C Breen; Hui-Lee Wong; Lisa P Jacobson; Charles S Rabkin; Richard F Ambinder; Otoniel Martinez-Maza; Richard A Kaslow
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Journal of acquired immune deficiency syndromes (1999)     Volume:  52     ISSN:  1944-7884     ISO Abbreviation:  J. Acquir. Immune Defic. Syndr.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2010-02-01     Completed Date:  2010-02-16     Revised Date:  2011-07-20    
Medline Journal Info:
Nlm Unique ID:  100892005     Medline TA:  J Acquir Immune Defic Syndr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  170-9     Citation Subset:  IM; X    
Affiliation:
Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL 35294-0022, USA. baissani@uab.edu
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MeSH Terms
Descriptor/Qualifier:
Gene Frequency
Genetic Predisposition to Disease
Genetic Testing
HLA Antigens / genetics*
Haplotypes
Hispanic Americans
Humans
Lymphoma, AIDS-Related / genetics*
Lymphoma, Non-Hodgkin / genetics*
Lymphotoxin-alpha / genetics
Male
Polymorphism, Single Nucleotide*
Tumor Necrosis Factor-alpha / genetics
Grant Support
ID/Acronym/Agency:
5-M01-RR-00722/RR/NCRR NIH HHS; P30 AI 045008/AI/NIAID NIH HHS; P30 AI045008-01/AI/NIAID NIH HHS; P50 CA096888-01/CA/NCI NIH HHS; P50-CA96888/CA/NCI NIH HHS; R01 CA073475-03/CA/NCI NIH HHS; R01 CA106168-01A1/CA/NCI NIH HHS; R01-CA106168/CA/NCI NIH HHS; R01-CA73475/CA/NCI NIH HHS; UO1-AI-35039/AI/NIAID NIH HHS; UO1-AI-35040,/AI/NIAID NIH HHS; UO1-AI-35041/AI/NIAID NIH HHS; UO1-AI-35042/AI/NIAID NIH HHS; UO1-AI-35043/AI/NIAID NIH HHS; UO1-AI-37613/AI/NIAID NIH HHS; UO1-AI-37984/AI/NIAID NIH HHS
Chemical
Reg. No./Substance:
0/HLA Antigens; 0/Lymphotoxin-alpha; 0/Tumor Necrosis Factor-alpha
Comments/Corrections

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