PMID- 19382262 OWN - NLM STAT- MEDLINE DCOM- 20090608 LR - 20091119 IS - 1096-9071 (Electronic) IS - 0146-6615 (Linking) VI - 81 IP - 6 DP - 2009 Jun TI - Association of IL-4 589 C/T promoter and IL-4RalphaI50V receptor polymorphism with susceptibility to HIV-1 infection in North Indians. PG - 959-65 LID - 10.1002/jmv.21478 [doi] AB - The clinical course and outcome of HIV-1 infection are highly variable among individuals. Interleukin 4 (IL-4) is a key T helper 2 cytokine with various immune-modulating functions including induction of immunoglobulin E (IgE) production in B cells, downregulation of CCR5 and upregulation of CXCR4, the main co-receptors for HIV. Our objective is to investigate whether single-nucleotide polymorphisms (SNPs) in the IL-4 promoter 589 C/T and IL-4 Ralpha I50V affect the susceptibility to HIV infection and its progression to AIDS in North Indian individuals. The study population consisted of 180 HIV-1 seropositive (HSP) stratified on the basis of disease severity (stage I, II, III), 50 HIV-1 exposed seronegative (HES), and 305 HIV-1 seronegative (HSN) individuals. The subjects were genotyped for IL-4 589 C/T promoter polymorphism and IL-4 Ralpha I50V by polymerase chain reaction restriction fragment length polymorphism. The results showed that IL-4 589 C/T was not associated with the risk of HIV infection and disease progression. However, the IL-4Ralpha I50 allele and genotype was significantly increased in HSP compared to HSN and HSP and was associated with risk of HIV infection. The frequency of IL-4Ralpha I50 allele in the HSP group was higher than in HSN (76.11 vs. 64.75%; P = 0.000; OR = 1.734) and HES (76.11% vs. 62.00%; P = 0.007; OR = 1.953). Homozygous IL-4Ralpha I50I genotype was significantly increased in HSP group compared with HSN (58.88% vs. 44.26%; P = 0.002; OR = 1.804) and HES (58.88% vs. 42.00%; P = 0.038; OR = 1.978). The present study for the first time suggests an association of IL-4Ralpha I50 allele with increased likelihood of HIV-1 infection in North Indian population. Further studies are required to confirm these findings and understand the effect of IL-4Ralpha polymorphism on the outcome of HIV-1 infection. FAU - Chatterjee, Animesh AU - Chatterjee A AD - Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India. FAU - Rathore, Anurag AU - Rathore A FAU - Dhole, Tapan N AU - Dhole TN LA - eng SI - RefSeq/NM_000418 SI - RefSeq/NM_000589 SI - RefSeq/NM_001008699 SI - RefSeq/NM_172348 PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Med Virol JT - Journal of medical virology JID - 7705876 RN - 0 (Receptors, Interleukin-4) RN - 207137-56-2 (Interleukin-4) SB - IM MH - Adult MH - Aged MH - Female MH - Gene Frequency MH - *Genetic Testing MH - HIV Infections/*genetics MH - Humans MH - India MH - Interleukin-4/*genetics MH - Male MH - Middle Aged MH - Molecular Sequence Data MH - *Polymorphism, Single Nucleotide MH - Receptors, Interleukin-4/*genetics MH - Sequence Analysis, DNA EDAT- 2009/04/22 09:00 MHDA- 2009/06/09 09:00 CRDT- 2009/04/22 09:00 PHST- 2009/04/22 09:00 [entrez] PHST- 2009/04/22 09:00 [pubmed] PHST- 2009/06/09 09:00 [medline] AID - 10.1002/jmv.21478 [doi] PST - ppublish SO - J Med Virol. 2009 Jun;81(6):959-65. doi: 10.1002/jmv.21478.