通过CCL2介导的IKZF1表达,通过CD84-SHP2通路促进结质瘤相关巨细胞的M2极化
Yifu Song1, Yaochuan Zhang1, Zixun Wang1
1Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, 110001, China.
Oncogene
|August 7, 2024
概括
介质质瘤干细胞 (GSCs) 驱动M2型瘤相关巨细胞 (TAMs),促进质瘤的进展. 抑制IKZF1可以抑制这种相互作用,减少瘤生长,并在临床前模型中改善存活率.
科学领域:
- 神经瘤学神经瘤学
- 癌症免疫学 癌症免疫学
- 分子生物学分子生物学
背景情况:
- 瘤干细胞 (GSCs) 经历了前神经介质细胞 (PN-MES) 转化,增强了恶性瘤.
- 与瘤相关的巨细胞 (TAMs) 呈现出类似M2的两极分化,抑制免疫力并促进瘤生长.
- 在质瘤微环境中,GSCs和TAMs之间的相互作用尚未完全理解.
研究的目的:
- 阐明控制 GSC 和 TAM 之间的相互作用的分子机制.
- 为了研究这种相互作用在质瘤进展中的作用.
- 为了确定质瘤治疗的潜在治疗点.
主要方法:
- 生物信息学分析
- 瘤干细胞和TAM共同培养实验的实验
- 确定TAM两极化现象型的确定
- 在体外测试 (in vitro assays) 中进行测试.
- 在体内质瘤动物模型.
主要成果:
- 由间酶体GSCs分泌的CCL2通过IKZF1-CD84-SHP2通路促进TAM-M2极化.
- CCL2还通过TAM中的IKZF1-LRG1路径驱动GSC的PN-MES转换.
- 在质瘤模型中,IKZF1抑制剂显著降低了瘤体积和改善了存活率.
- IKZF1抑制抑制了TAM-M2极化和GSC恶性表型.
结论:
- 在TAMs和GSCs之间存在关键的相互作用,由IKZF1途径介导,推动质瘤的进展.
- 向IKZF1通过调节TAM功能和GSC表型,为质瘤提供了一种新的治疗策略.
- 这项研究为调节质瘤微环境的临床研究提供了基础.
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