PU.1诱导与瘤相关的巨细胞,通过BTK介导的Akt/mTOR通路激活来促进质瘤的进展
Gu Song1, Zeyu Zhang2, Yan Chen3
1Department of Neurosurgery, The First Affiliated Hospital of Anhui Medical University Hefei, Anhui, China.
American journal of cancer research
|April 9, 2024
概括
PU.1通过布鲁顿氨酸激酶 (BTK) 和Akt/mTOR途径激活瘤相关巨细胞 (TAMs) 来驱动质瘤的进展. 抑制这些通路为质瘤提供了潜在的治疗策略.
科学领域:
- 神经瘤学神经瘤学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 质瘤是一种常见的大脑瘤,涉及免疫细胞,如瘤相关巨细胞 (TAMs),促进瘤生长和治疗耐药性.
- 通过TAMs促进质瘤进展的精确分子机制尚未完全理解.
研究的目的:
- 研究转录因子PU.1在质瘤微环境中TAMs的极化和激活中的作用.
- 阐明参与PU.1-介导的TAM原始原始功能中的信号通路.
主要方法:
- 临床质瘤样本和体外培系统的生物信息分析.
- 评估巨细胞表型 (迁移,入侵,增殖) 与PU.1过度表达.
- 对布鲁顿氨酸激酶 (BTK) 和Akt/mTOR信号通路的研究.
- 在体外和体内,BTK和Akt/mTOR通路的药理抑制.
主要成果:
- 在TAM中PU.1的表达与质瘤疾病的严重程度正相关.
- 巨细胞中的PU.1过度表达增强了它们的迁移,入侵和繁殖,赋予了原始原始的表型.
- PU.1激活BTK信号通路,导致巨细胞中的Akt/mTOR激活.
- 抑制BTK或Akt/mTOR通路逆转了原源性影响,并在体内减弱了质瘤的进展.
结论:
- 在质瘤微环境中,PU.1在两极化和激活TAM中起着至关重要的作用.
- 由BTK介导的Akt/mTOR通路的激活是驱动原始TAM功能的一个关键机制.
- 在TAM中准PU.1及其下游信号通路 (BTK,Akt/mTOR) 是对质瘤的潜在治疗策略.
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