793-胶质瘤缺氧巨噬细胞识别及其血管正常化治疗潜力 episode artwork

EPISODE · Apr 14, 2026 · 19 MIN

793-胶质瘤缺氧巨噬细胞识别及其血管正常化治疗潜力

from 聊聊Sci

该研究通过单细胞和空间转录组学技术,揭示了胶质母细胞瘤中单核细胞来源的肿瘤相关巨噬细胞(Mo-TAM)的异质性。研究发现了一类定位于围坏死区的缺氧型巨噬细胞(Hypoxia-TAM),它们在缺氧环境和肿瘤信号的共同驱动下,通过激活 p50 通路分泌肾上腺髓质素(ADM)。这种蛋白质通过作用于内皮细胞的 CRLR 受体,导致 VE-cadherin 胞内转运,从而破坏血管连接并诱发血管高渗透性。研究证明,使用ADM 拮抗剂(AMA)可以实现血管正常化,显著提升抗肿瘤药物如达拉非尼的运送效率与疗效。这一发现不仅明确了缺氧微环境对免疫细胞的重塑作用,还为改善胶质瘤患者预后提供了新的治疗靶点。References: Wang W, Li T, Cheng Y, et al. Identification of hypoxic macrophages in glioblastoma with therapeutic potential for vasculature normalization[J]. Cancer cell, 2024, 42(5): 815-832. e12.前往小宇宙评论区与主播互动

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793-胶质瘤缺氧巨噬细胞识别及其血管正常化治疗潜力

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