相关实验视频
Updated: Jul 5, 2025

08:36
In Vitro Assay to Study Tumor-macrophage Interaction
Published on: August 1, 2019
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瘤相关的巨细胞在默克尔细胞癌:旧的平衡,新的检查
Ann W Silk1, Diwakar Davar2,3
1Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts.
概括
在默克尔细胞癌 (MCC) 中表达S100A8的瘤相关巨细胞 (TAM) 与抗PD-(L) 1免疫治疗的耐药性有关. 准髓质检查点可能会改善MCC患者的治疗结果.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
背景情况:
- 默克尔细胞癌 (MCC) 是一种侵袭性皮肤癌.
- 免疫疗法,特别是抗PD-(L) 1抑制剂,在治疗MCC时表现有前途.
- 然而,一些患有MCC的患者对这些疗法没有反应.
研究的目的:
- 研究瘤相关巨细胞 (TAMs) 在MCC中的作用.
- 确定MCC.中抗PD-(L) 1治疗的耐药性背后的机制.
- 探索MCC中潜在的新治疗点.
主要方法:
- 在MCC瘤中分析TAMs.
- 在TAM中S100A8表达与治疗反应的相关性.
- 评估准骨髓质检查点的影响.
主要成果:
- 在MCC中发现了表达S100A8的TAM.
- 表达S100A8的TAMs的存在与抗PD-(L) 1抑制剂的耐药性有关.
- 这些发现表明,即使在T细胞透率高的瘤中,免疫疗法耐药性的机制也存在.
结论:
- 表达S100A8的TAMs代表了一个潜在的生物标志物,用于预测MCC的免疫治疗反应.
- 针对骨髓质检查点与PD-L1封锁一起或代替PD-L1封锁可以克服阻力.
- 对于治疗MCC而言,需要对骨髓细胞向治疗进行进一步的研究.
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