Combination gene therapy for HIV using a conditional suicidal gene with CCR5 knockout.
Combination gene therapy for HIV using a conditional suicidal gene with CCR5 knockout.
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DOI:
10.1186/s12985-021-01501-7
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发表时间:
2021-01-30
期刊:
影响因子:
4.8
通讯作者:
Joshi A
中科院分区:
文献类型:
--
作者:
Mehmetoglu-Gurbuz T;Yeh R;Garg H;Joshi A
Gene therapy approaches using hematopoietic stem cells to generate an HIV resistant immune system have been shown to be successful. The deletion of HIV co-receptor CCR5 remains a viable strategy although co-receptor switching to CXCR4 remains a major pitfall. To overcome this, we designed a dual gene therapy strategy that incorporates a conditional suicide gene and CCR5 knockout (KO) to overcome the limitations of CCR5 KO alone. A two-vector system was designed that included an integrating lentiviral vector that expresses a HIV Tat dependent Thymidine Kinase mutant SR39 (TK-SR39) and GFP reporter gene. The second non-integrating lentiviral (NIL) vector expresses a CCR5gRNA-CRISPR/Cas9 cassette and HIV Tat protein. Transduction of cells sequentially with the integrating followed by the NIL vector allows for insertion of the conditional suicide gene, KO of CCR5 and transient expression of GFP to enrich the modified cells. We used this strategy to modify TZM cells and generate a cell line that was resistant to CCR5 tropic viruses while permitting infection of CXCR4 tropic viruses which could be controlled via treatment with Ganciclovir. Our study demonstrates proof of principle that a combination gene therapy for HIV is a viable strategy and can overcome the limitation of editing CCR5 gene alone.
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影响因子:
--
作者:
Hütter G;Ganepola S
通讯作者:
Ganepola S
影响因子:
46.9
作者:
Hendel A;Bak RO;Clark JT;Kennedy AB;Ryan DE;Roy S;Steinfeld I;Lunstad BD;Kaiser RJ;Wilkens AB;Bacchetta R;Tsalenko A;Dellinger D;Bruhn L;Porteus MH
通讯作者:
Porteus MH
DOI:
10.1007/978-1-4939-2432-5_4
发表时间:
2015-01-01
期刊:
GENE THERAPY FOR HIV AND CHRONIC INFECTIONS
影响因子:
--
作者:
Herrera-Carrillo, Elena;Berkhout, Ben
通讯作者:
Berkhout, Ben
影响因子:
3.7
作者:
Garg, Himanshu;Lee, Raphael T. C.;Joshi, Anjali
通讯作者:
Joshi, Anjali
DOI:
10.3390/v9080237
发表时间:
2017-08-22
期刊:
Viruses
影响因子:
--
作者:
Garg H;Joshi A
通讯作者:
Joshi A