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摘要:
The host range of human immunodeficiency virus type 1 (HIV-1) is extremely narrow, which has hampered the establishment of non-human primate models for HIV-1 infection. The species-specific innate immune factor tripartite motif 5 alpha (TRIM5 alpha) is a key molecule that confers potent resistance against HIV-1 infection. In this study, we targeted the TRIM5 alpha gene of rhesus macaques (rhTRIM5 alpha) using the transcription activator-like effector nuclease (TALEN) to study the effect on HIV-1 infection. CD4(+) T cells were separated from the peripheral blood of rhesus macaques by magnetic cell sorting, and the positive rate was greater than 99%. TALEN plasmids targeting rhTRIM5 alpha were constructed and introduced into CD4(+) T cells by electroporation, with a transfection efficiency of approximately 25%. The genome of the targeted cells was extracted, and the target efficiency was analyzed by T7E1 enzyme digestion. After sorting the positive transductants, the TALENs induced rhTRIM5 alpha mutations at a rate of more than 40%. The ability of the HIV-1 virus to infect the targeted cells was demonstrated by ELISA. The results showed that targeting rhTRIM5 alpha enhanced the susceptibility to HIV-1 infection. This finding will pave the way for further establishment of a new rhesus macaque model for HIV-1 studies.
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来源 :
ARCHIVES OF VIROLOGY
ISSN: 0304-8608
年份: 2017
期: 3
卷: 162
页码: 793-798
2 . 7 0 0
JCR@2022
ESI学科: MICROBIOLOGY;
ESI高被引阀值:229
中科院分区:4
归属院系: