血小板激活,阿司匹林和癌症:从基础科学到临床试验
Carlo Patrono1, John Burn2, Paola Patrignani3
1Department of Cardiovascular and Pulmonary Sciences, Catholic University School of Medicine, Rome, Italy.
Pharmacological reviews
|January 27, 2026
概括
低剂量阿司匹林可以通过抑制血小板激活来预防癌症,从而促进炎症并阻碍抗癌免疫力. 进一步的研究将确定最有可能从阿司匹林治疗中受益的个体.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
背景情况:
- 广泛的证据表明阿司匹林可以预防癌症,但其机制尚不清楚.
- 低剂量阿司匹林 (75-100毫克) 无法逆转地抑制血小板中的循环氧化酶-1 (COX-1),降低血小板激活由血素A2 (TXA2) 介导.
- 血小板激活越来越多地与炎症,癌症发展和进展有关.
研究的目的:
- 审查血小板激活,炎症和癌症之间的机制联系.
- 总结阿司匹林和癌症的临床试验结果和生物标志物研究.
- 假设TXA2介导的血小板激活在致癌和癌症进展中的作用.
主要方法:
- 对血小板激活和癌症的实验和临床证据的审查.
- 分析TXA2,炎症和免疫反应之间的机制联系.
- 关于阿司匹林的临床试验和元分析结果的摘要.
主要成果:
- 通过TXA2介导的持续增强的血小板激活,可以通过炎症 (COX-2诱导,前列腺素E2) 促进胃肠癌发生,并抑制抗癌T细胞免疫力.
- 异常的血小板激活在癌症患者和那些有多的人身上被观察到.
- 临床试验支持阿司匹林用于林奇综合征癌症预防和特定结直肠癌的辅助治疗.
结论:
- 血小板激活在早期结直肠癌发生,癌症进展和转移中发挥着重要作用.
- 低剂量阿司匹林在癌症预防和治疗方面表现有前途,特别是通过TXA2抑制.
- 需要进一步的研究,包括元分析和机理学研究,以确定阿司匹林最受益的患者子组.
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