Replication and drug resistant mutation of HIV-1 subtype B' (Thailand B) variants isolated from HAART treatment individuals in China.

Virology Journal
Jianping SunYiming Shao

Abstract

Drug resistant HIV-1 variants were emergent more and more in AIDS individuals with highly active antiretroviral therapy (HAART) treatment. Understanding the replication and drug resistant mutation of HIV-1 variants isolated from HAART treatment individuals of China could help to design appropriate therapeutic strategies for these individuals. Use GHOST cell lines to analysis the coreceptor usage of HIV-1 variants. Coculture with PBMCs to analysis the replication capacity. Use RT-PCR to analysis the drug resistant mutation of pol gene. 13 HIV-1 variants experienced HAART were included in this study. 5 HIV-1 variants used CCR5 coreceptor (R5), while 8 use both CCR5 and CXCR4 coreceptor (R5X4). The replication capacity of R5X4 variants was no difference with R5 variants in vitro without antiretroviral drugs. Compare the drug resistant mutation between first HIV-1 variants and fourth variants; there were 37 drug resistant mutations in first variants and 32 drug resistant mutations in fourth variants. Only 7 drug resistance mutations were lost after coculture for 4 weeks, and 2 drug resistance mutations were emerged. These data suggested that the drug resistant level could not reduce in vitro in absence of antiretroviral drugs in fe...Continue Reading

References

Oct 31, 1996·Nature·L ZhangD D Ho
Oct 3, 2000·Advances in Pharmacology·F ClavelF Mammano
Apr 20, 2001·Nature·D D Richman
Jul 1, 2006·Journal of Acquired Immune Deficiency Syndromes : JAIDS·Shulin JiangYiming Shao
Jul 16, 2008·AIDS Research and Human Retroviruses·Tina Vasehus MadsenLouise Bruun Jørgensen

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Methods Mentioned

BETA
ELISA
PCR

Software Mentioned

HIVdb
GraphPad5

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