EPISODE · Oct 3, 2026 · 23 MIN
1639-巨噬细胞调控克服三阴性乳腺癌PARP抑制剂耐药
from 聊聊Sci
这篇文章探讨了在BRCA基因突变引起的三阴性乳腺癌（TNBC）中，PARP抑制剂如何通过复杂的代谢重编程影响肿瘤巨噬细胞。研究发现，虽然此类药物能激活抗肿瘤免疫，但同时也会诱导巨噬细胞产生免疫抑制性特征，导致治疗耐药。通过单细胞分析和实验验证，作者证实了巨噬细胞是这类肿瘤中主要的浸润免疫细胞，且其表型变化具有PARP1依赖性。为了克服这一瓶颈，研究提出将PARP抑制剂与CSF1R阻断抗体联合使用。这种组合疗法在小鼠模型中成功重塑了肿瘤微环境，增强了T细胞的抗癌效力，并显著延长了生存期，为临床治疗提供了新策略。References:Mehta A K, Cheney E M, Hartl C A, et al. Targeting immunosuppressive macrophages overcomes PARP inhibitor resistance in BRCA1-associated triple-negative breast cancer[J]. Nature cancer, 2021, 2(1): 66-82.前往小宇宙评论区与主播互动
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1639-巨噬细胞调控克服三阴性乳腺癌PARP抑制剂耐药
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