用黄素治疗的抗多克索鲁比的MCF-7细胞的表观遗传和细胞重编程
Paola Poma1, Salvatrice Rigogliuso1, Manuela Labbozzetta1
1Department of Biological Chemical and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, 90128 Palermo, Italy.
International journal of molecular sciences
|January 8, 2025
概括
黄素是一种天然化合物,通过向表观遗传变化来逆转乳腺癌细胞的多药性耐药性 (MDR). 这为克服癌症治疗中的化疗耐药性提供了潜在的新策略.
科学领域:
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 癌症研究 癌症研究
背景情况:
- 乳腺癌中获得的多药性耐药性 (MDR),以MCF-7R细胞系为例,是一个重要的治疗挑战.
- 多种药物耐药性通常由P-glycoprotein (P-gp) 的过度表达和表观遗传变化介导.
- 现有的P-gp抑制剂因非特异性作用而在体内使用有局限性.
研究的目的:
- 研究一种天然化合物黄素影响多药耐药 (MDR) 乳腺癌细胞 (MCF-7R) 的分子机制.
- 分析黄素对与DNA甲基化和转录有关的基因表达的影响,包括MDR1基因.
- 为了识别由黄素诱导的表观遗传修饰,使用减少表示 bisulfite 测序.
主要方法:
- 利用了MCF-7R乳腺癌细胞系,这是获得多种药物耐药性的模型.
- 分析了与表观遗传调节和转录相关的基因表达特征.
- 采用减少表示双硫酸盐测序来评估DNA甲基化变化.
- 评估了对黄素治疗的反应中耐药表型的逆转.
主要成果:
- 黄素治疗调节了参与DNA甲基化和转录的基因表达,包括ABCB1/MDR1.1.
- 在暴露于黄素后,在MCF-7R细胞中发现了表观遗传修饰.
- 黄素影响了细胞过程,如核糖体生物发生和细胞骨动力学.
- 抗性MCF-7R细胞的表型逆转为敏感细胞的表型.
结论:
- 黄素显示出作为一种辅助疗法的潜力,以克服乳腺癌中的化学抵抗.
- 黄素调节表观遗传调节的能力提供了一种新的方法来重新敏感抗癌细胞.
- 用黄素等化合物准表观遗传机制为癌症治疗提供了新的药理学策略.
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