活化血小板通过调节PDGFR-β/COX-2轴来促进乳腺癌的血液转移
Yu Tang1, Cheng Qian1, Yueke Zhou1
1Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
iScience
|September 8, 2023
概括
血小板通过释放PDGF-B来调解癌症的进展,PDGFR-β/COX-2信号被激活. 抑制CD36和COX-2阻断了血小板与瘤细胞的相互作用,为转移提供了治疗策略.
科学领域:
- 在瘤学瘤学.
- 血液学 血液学 血液学
- 分子生物学分子生物学
背景情况:
- 血小板是恶性疾病的公认媒介,影响瘤进展和转移.
- 血小板和瘤细胞之间的近相互作用与癌细胞扩散有关.
- 促进血液转移的血小板瘤细胞相互作用背后的机制需要进一步阐明.
研究的目的:
- 研究激活血小板,特别是CD36表达在促进瘤转移中的作用.
- 阐明参与血小板介导瘤细胞激活的信号通路.
- 评估向血小板和瘤细胞交互的治疗潜力.
主要方法:
- 从高CD36表达的活性血小板释放生长因子和细胞因子的分析.
- 研究通过血小板衍生的PDGF-B激活PDGFR-β/COX-2信号级联.
- 评估CD36和COX-2抑制剂对血小板和瘤细胞相互作用和转移的影响.
主要成果:
- 与静止血小板相比,表达CD36的激活血小板释放的PDGF-B水平明显更高.
- PDGF-B激活了PDGFR-β/COX-2信号通路,增加了促炎因素.
- 联合使用CD36和COX-2抑制剂有效地取消了血小板与瘤细胞的相互作用.
结论:
- 血小板CD36和PDGF-B信号传递在促进瘤转移方面发挥着至关重要的作用.
- 准PDGFR-β/COX-2级联提供了一个潜在的治疗途径.
- 抑制血小板和瘤细胞之间的交叉交流是对抗癌症转移的有希望的策略.
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