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《科学》 2026年9月24日 · 中文解读

衰老导向纳米疗法改善纤维化并克服癌症免疫排斥

Senescence-directed nanotherapy ameliorates fibrosis and overcomes immune exclusion in cancer · C. Hinterleitner et al.
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这篇讲什么
研究人员开发出衰老调节纳米颗粒(SMNP),利用岩藻多糖靶向纤维化组织中表达P-选择素的衰老样巨噬细胞,递送navitoclax或dBET6。在小鼠肝、肺纤维化模型中,SMNP显著减轻纤维化并消除了游离药物的全身毒性。在纤维化肿瘤模型中,该疗法重塑免疫抑制微环境,恢复免疫浸润并使肿瘤对免疫检查点阻断敏感。
原文开头
Clemens Hinterleitner†, Valentin J. A. Barthet† , Hailey V. Goldberg†, et al. INTRODUCTION: Fibrosis, a common consequence of chronic tissue injury, involves excessive extracellular matrix deposition, disruption of tissue architecture, and immunosuppressive remodeling. These processes impair both organ function and immune surveillance. Fibrosis is also linked to cancer; many solid tumors either arise within preexisting fibrotic tissues or induce fibrosis- like stromal remodeling, creating barriers that restrict T cell infiltration and diminish the efficacy of immunotherapies. Cellular senescence, an antiproliferative program linked to tissue remodeling, is an important driver of fibrosis. Although senescent cells can support tissue repair and suppress carcinogenesis, persistent accumulation of senescent cells promotes fibrosis and immune dysfunction. …
摘自《科学》(Science)2026年9月24日,C. Hinterleitner et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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