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

Details

• Alternative Title:
  Virology Journal
• Personal Author:
  Sun, Jianping ; Ma, Liying ; Yu, Xiaoling ; Huang, Yang ; Yuan, Lin ; Shao, Yiming
• Description:
  Background
  
  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.
  
  Methods
  
  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.
  
  Results
  
  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.
  
  Conclusion
  
  These data suggested that the drug resistant level could not reduce in vitro in absence of antiretroviral drugs in few weeks. And maybe helpful for these HAART experienced individuals when change antiretroviral drugs.
  
  
• Subjects:
  Acquired Immunodeficiency Syndrome Adult Antiretroviral Therapy, Highly Active Cells, Cultured China Drug Resistance, Viral Female HIV-1 Humans Male Mutation Research Virus Replication

  More +
• Source:
  Virology Journal. 2009; 6:201.
• Document Type:
  Journal Article
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:22b9c0ad5579387459a9167dcaa5fda0bbe9c044330e3e29a59e13f156d6a4c0
• Download URL:
  https://stacks.cdc.gov/view/cdc/3628/cdc_3628_DS1.pdf
• File Type:
  [PDF - 230.62 KB ]