705-CAR-A:靶向清除淀粉样蛋白的星形胶质细胞疗法 episode artwork

EPISODE · Mar 27, 2026 · 20 MIN

705-CAR-A:靶向清除淀粉样蛋白的星形胶质细胞疗法

from 聊聊Sci

这项研究介绍了一种名为CAR-A的新型阿尔茨海默病治疗方法,其核心是将嵌合抗原受体技术应用于脑内的星形胶质细胞。研究人员开发了能够识别β-淀粉样蛋白(Aβ)的受体,通过单次非侵入性病毒载体递送,使星形胶质细胞转化为具有高效清理能力的“超级吞噬细胞”。实验结果显示,该疗法不仅能显著减少小鼠大脑中的淀粉样蛋白斑块,还能预防早期病理沉积并减轻神经元损伤。与传统的抗体药物相比,这种工程化细胞疗法表现出更强的自主持续性和精准的信号调节能力。通过单细胞测序分析,研究进一步证实了CAR-A能诱导星形胶质细胞与小胶质细胞产生协同免疫反应,共同改善大脑的病理环境。这为治疗神经退行性疾病提供了一种极具潜力的可扩展且可调控的新策略。References: Chen Y, Liu Y, Nguyen K, et al. Targeting amyloid-β pathology by chimeric antigen receptor astrocyte (CAR-A) therapy[J]. Science, 2026, 391(6789): eads3972.前往小宇宙评论区与主播互动

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705-CAR-A:靶向清除淀粉样蛋白的星形胶质细胞疗法

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