Lack of evidence to support the association of a single IL28B genotype SNP rs12979860 with the HTLV-1 clinical outcomes and proviral load

BMC Infectious Diseases

Research Article

Ana Carolina Soares de Oliveira¹  Antonio Charlys da Costa¹  Rodrigo Pessôa¹  Sabri Saeed Sanabani²  Ester Cerdeira Sabino³  Aluisio C Segurado³  Juliana Pereira⁴  Youko Nukui⁴  Fabio Eudes Leal⁵  Esper Georges Kallas⁵ 

[1] Clinical Laboratory, Department of Pathology, LIM 03, Hospital das Clínicas (HC), School of Medicine, University of São Paulo, São Paulo, Brazil;Clinical Laboratory, Department of Pathology, LIM 03, Hospital das Clínicas (HC), School of Medicine, University of São Paulo, São Paulo, Brazil;São Paulo Inistitute of Tropical Medicine, São Paulo, Brazil;Deparment of Infectious Diseases, School of Medicine, University of Sao Paulo, São Paulo, Brazil;Department of Hematology, University of São Paulo, São Paulo, Brazil;Division of Clinical Immunology and Allergy, University of Sao Paulo Medical School, São Paulo, Brazil;

关键词: HTLV-1;    ILB 28 polymorphisms;    HAM/TSP;    Proviral load;   

DOI  :  10.1186/1471-2334-12-374

 received in 2012-07-10, accepted in 2012-12-20,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundThe Interleukin 28B (IL28B) rs12979860 polymorphisms was recently reported to be associated with the human T-cell leukemia virus type 1 (HTLV-1) proviral load (PvL) and the development of the HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP).MethodsIn an attempt to examine this hypothesis, we assessed the association of the rs12979860 genotypes with HTLV-1 PvL levels and clinical status in 112 unrelated Brazilian subjects (81 HTLV-1 asymptomatic carriers, 24 individuals with HAM/TSP and 7 with Adult T cell Leukemia/Lymphoma (ATLL)).ResultsAll 112 samples were successfully genotyped and their PvLs compared. Neither the homozygote TT nor the heterozygote CT mutations nor the combination genotypes (TT/CT) were associated with a greater PvL. We also observed no significant difference in allele distribution between asymptomatic carriers and patients with HTLV-1 associated HAM/TSP.ConclusionsOur study failed to support the previously reported positive association between the IL28B rs12979860 polymorphisms and an increased risk of developing HAM/TSP in the Brazilian population.

【 授权许可】

CC BY   
© Sanabani et al.; licensee BioMed Central Ltd. 2012