Human immunodeficiency virus type 1 drug resistance mutations in peripheral blood mononuclear cell proviral DNA among antiretroviral treatment-naive and treatment-experienced patients from Pune, India

被引:30
作者
Sen, Sourav
Tripathy, Srikanth P.
Chimanpure, Vaishali M.
Patil, Ajit A.
Bagul, Rajani D.
Paranjape, Ramesh S.
机构
[1] Indian Council Med Res, Natl AIDS Res Inst, Pune 411026, Maharashtra, India
[2] Command Hosp, Pune, Maharashtra, India
关键词
D O I
10.1089/aid.2006.0221
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The prevalence of HIV drug resistance ( HIVDR) mutations in the HIV protease ( PR) and reverse transcriptase ( RT) genes was estimated from peripheral blood mononuclear cells ( PBMCs) in a study population of 25 antiretroviral ( ARV) therapy-naive and 50 ARV-experienced chronically infected patients from Pune city, Maharashtra State, western India. Of the 75 study HIV-1 sequences, 73 belonged to subtype C and 2 to subtype A1. On phylogenetic analysis, the study subtype C sequences sub clustered randomly with different Indian and non-Indian subtype C sequences, emphasizing the HIV-1 subtype C pol gene diversity. The heterosexual route was the most common route of transmission ( 74.67%). There were no observable HIVDR mutations in ARV-naive patients. The ARV-experienced patients had a history of exposure to nucleoside reverse transcriptase inhibitor and nonnucleoside reverse transcriptase inhibitor combinations. At least one HIVDR mutation in RT was observed in 29 ( 80.55%) of ARV-experienced patients with evidence of failing therapy. M184V was the most common observed HIVDR mutation. No PR major mutations were observed among ARV-experienced patients. A higher prevalence of proviral HIVDR mutations in PBMCs was associated with irregular adherence to therapy ( p < 0.05) and HIV-1 RNA levels > 1000 copies/ml ( p < 0.001).
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页码:489 / 497
页数:9
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