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肿瘤相关巨噬细胞(TAM)
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Immunity:利用肿瘤相关巨噬细胞,促进脊髓损伤后的再生和修复
生物世界· 2026-01-27 04:36
撰文丨王聪 编辑丨王多鱼 排版丨水成文 肿瘤相关巨噬细胞 (TAM) 通过促进血管生成、细胞外基质重塑和免疫抑制来增强癌症的进展。 神经浸润 ( Nerve infiltration ) 也会促进肿瘤生长。然而, 肿瘤相关巨噬细胞 (TAM) 在促进肿瘤内神经生长方面的作用,目前仍不清楚。 2026 年 1 月 26 日, 维罗纳大学和米兰大学的研究人员在 Cell 子刊 Immunity 上发表了题为: Tumor-associated macrophages enhance peripheral nerve tumor infiltration and spinal cord repair 的研究论文。 该研究表明, 肿瘤相关巨噬细胞 (TAM) 能够 促进外周神经的肿瘤浸润 ,这一能力可被用于促进严重脊髓损伤后的神经组织再生和运动功能恢复。 该研究的核心发现: 人类和小鼠的肿瘤相关巨噬细胞 (TAM) 表现出独特的功能性神经生长基因特征; TAM 增强肿瘤神经支配; TAM 促进严重脊髓损伤后的神经组织再生和运动功能恢复; SPP1 是 TAM 诱导神经元生长所必需的。 在这项研究中,研究团队揭示了肿瘤 ...
南京医科大学最新Nature子刊:汪秀星/张茜/钱旭/张军霞等揭示阻断肿瘤微环境乳酸转运,可增强胶质母细胞瘤的抗肿瘤免疫
生物世界· 2026-01-07 04:09
Core Viewpoint - Glioblastoma (GBM) is the most common and aggressive malignant brain tumor in adults, with a median survival of only 12-18 months post-diagnosis, and current treatments have limited efficacy in extending life expectancy [3] Group 1: Research Findings - A recent study published in Nature Cell Biology indicates that inhibiting lactate transport derived from tumor-associated macrophages (TAM) can restore cGAS-STING signaling and enhance antitumor immunity in glioblastoma [4] - The research team discovered that lactate is transported from TAM to glioblastoma stem cells (GSC) via MCT4-MCT1, promoting GSC proliferation and inducing lactylation modification of the non-homologous end joining protein KU70 at lysine 317 (K317), which inhibits cGAS-STING signaling and remodels the immunosuppressive tumor microenvironment [7] - Overall, the study reveals that lactate and lactylation modifications produced by TAM are key regulatory factors in maintaining the immunosuppressive tumor microenvironment in GSC, opening new avenues for combination therapies in glioblastoma [9]