HIV-1 proviral DNA excision using an evolved recombinase

HIV-1 proviral DNA excision using an evolved recombinase
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DOI:
10.1126/science.1141453
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发表时间:
2007-06-29
期刊:
影响因子:
56.9
通讯作者:
Buchholz, Frank
Buchholz, Frank
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Sarkar, Indrani;Hauber, Ilona;Buchholz, Frank

文献摘要

被引文献

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HIV-1整合到宿主染色体中,并作为侧接长末端重复序列(LTR)的前病毒持续存在。迄今为止,治疗方案主要针对病毒酶或病毒-细胞融合,而不是整合的前病毒。我们在这里报告的底物连接的蛋白质进化的定制重组酶,识别HIV-1 LTR内的不对称序列。这种进化的重组酶有效地从感染细胞的基因组中切除整合的HIV前病毒DNA。虽然距离临床应用还有很长的路要走,但我们推测,这种技术可能适用于未来的抗逆转录病毒疗法,以及其他可能的用途。
HIV-1 integrates into the host chromosome and persists as a provirus flanked by long terminal repeats (LTRs). To date, treatment regimens primarily target the virus enzymes or virus-cell fusion, but not the integrated provirus. We report here the substrate-linked protein evolution of a tailored recombinase that recognizes an asymmetric sequence within an HIV-1 LTR. This evolved recombinase efficiently excised integrated HIV proviral DNA from the genome of infected cells. Although a long way from use in the clinic, we speculate that this type of technology might be adapted in future antiretroviral therapies, among other possible uses.