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Adeno-Associated Viral Vectors for Homology-Directed Generation of CAR-T Cells.
Biotechnology Journal ( IF 3.2 ) Pub Date : 2019-11-19 , DOI: 10.1002/biot.201900286
Pablo D Moço 1 , Noga Aharony 1 , Amine Kamen 1
Affiliation  

Immunotherapy with T cells expressing chimeric antigen receptors (CAR) is an emerging and promising treatment against refractory cancers. However, the currently adopted methods of modification of T cells pose a risk of insertional oncogenesis because lentiviral and retroviral vectors integrate the CAR transgene in a semi-random fashion. In addition, this therapy is only available using autologous cells, which create problems in production and limit the access for patients who have their T cells depleted. One modification method that shows the ability to overcome both drawbacks is the knock-in of the CAR simultaneously knocking-out genes that prevent allogeneic therapy, such as the endogenous T cell receptor. In this mini-review, the authors present recent efforts to develop safer universal CAR-T cells. More specifically, the combined application of target-directed nucleases, which create a double-strand break at a specific genome locus, and the delivery of CAR DNA via adeno-associated viral vectors for subsequent integration via homologous recombination and silencing of the targeted gene is focused on.

中文翻译:

腺相关病毒载体,用于同源性指导的CAR-T细胞的产生。

表达嵌合抗原受体(CAR)的T细胞的免疫疗法是一种针对难治性癌症的新兴治疗方法。然而,由于慢病毒和逆转录病毒载体以半随机方式整合了CAR转基因,因此当前采用的修饰T细胞的方法存在插入肿瘤发生的风险。此外,该疗法仅可用于自体细胞,这会在生产中产生问题,并限制T细胞被耗尽的患者进入。一种具有克服上述两个缺点的能力的修饰方法是敲入CAR,同时敲除阻止异基因治疗的基因,例如内源性T细胞受体。在这份小型综述中,作者们提出了开发更安全的通用CAR-T细胞的最新努力。进一步来说,
更新日期:2019-11-20
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