Expression of anti-amyloid CARs in microglia promotes efficient and selective phagocytosis of Aβ1‒42.

IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Christina N Heiss, Rebecca Riise, Eric Hanse, Stefanie Fruhwürth, Henrik Zetterberg, Andreas Björefeldt
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引用次数: 0

Abstract

Genetic engineering of microglial cells is a promising therapeutic avenue emerging with advancements in gene delivery techniques. Using a recently developed AAV capsid for efficient in vitro transduction we report the engineering of microglia with CARs (CAR-Mic) targeting phagocytosis of amyloid beta 1‒42 (Aβ42). Functional screening of seven CAR constructs in human iPSC-derived microglia revealed up to 6-fold increases in internalized Aβ relative to viral control. CAR-driven phagocytic enhancement was selective for Aβ, dependent on intracellular domain signaling, and was confirmed in primary mouse microglia. These findings highlight the potential of using this approach to target dysfunctional microglia in Alzheimer's disease and other CNS disorders.

小胶质细胞中抗淀粉样蛋白CARs的表达促进了Aβ1-42的有效和选择性吞噬。
随着基因传递技术的进步,小胶质细胞的基因工程是一种很有前途的治疗途径。利用最近开发的AAV衣壳进行有效的体外转导,我们报道了靶向吞噬淀粉样蛋白β 1-42 (a - β42)的CAR-Mic工程小胶质细胞。在人类ipsc衍生的小胶质细胞中,7种CAR构建体的功能筛选显示,相对于病毒对照,内化的Aβ增加了6倍。car驱动的吞噬增强对Aβ具有选择性,依赖于细胞内信号传导,并在小鼠原代小胶质细胞中得到证实。这些发现强调了使用这种方法靶向阿尔茨海默病和其他中枢神经系统疾病的功能失调小胶质细胞的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Gene Therapy
Gene Therapy 医学-生化与分子生物学
CiteScore
9.70
自引率
2.00%
发文量
67
审稿时长
4-8 weeks
期刊介绍: Gene Therapy covers both the research and clinical applications of novel therapeutic techniques based on a genetic component. Over the last few decades, significant advances in technologies ranging from identifying novel genetic targets that cause disease through to clinical studies, which show therapeutic benefit, have elevated this multidisciplinary field to the forefront of modern medicine.
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