1473-抑制CARM1酶增强树突状细胞抗癌免疫研究

这项研究深入探讨了CARM1表观遗传酶在肿瘤免疫中对cDC1型树突状细胞的关键调节作用。研究人员发现，CARM1作为一种负向调节因子，会抑制cDC1细胞通过MHC-I途径向CD8+ T细胞交叉提呈抗原的能力。实验证明，无论是在遗传层面灭活Carm1基因还是使用小分子抑制剂，都能显著增强cDC1的活性、迁移能力及其在肿瘤内部的积聚，从而激活更强有力的抗肿瘤T细胞反应。此外，肿瘤环境中的抑制性细胞因子TGFβ会诱导CARM1的表达，而抑制CARM1能有效改善肿瘤对PD-1抑制剂的敏感性。通过表观遗传学分析，研究揭示了CARM1的缺失能够增加与cDC1功能相关的关键转录因子位点的染色质开放度。总之，这项工作确定了CARM1是增强癌症免疫治疗效果的一个极具潜力的治疗靶点。References:Zhang X, Xirenayi S, Zhao Y, et al. The CARM1 epigenetic enzyme inhibits cross-presenting dendritic cell function in cancer immunity[J]. Science, 2026, 393(6807): eaea1200.前往小宇宙评论区与主播互动

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1473-抑制CARM1酶增强树突状细胞抗癌免疫研究

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