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由原蛋白触发的转录组重编程通过替代拼接驱动三阴性乳腺癌的细胞死亡
Meenakshi Sudhakaran1, Tatiana García Navarrete2, Katherine Mejía-Guerra3
1Molecular, Cellular, and Integrative Physiology Graduate Program, Michigan State University, East Lansing, MI, USA.
Cell death & disease
|December 13, 2023
概括
黄类型的阿皮根因在三阴性乳腺癌 (TNBC) 中重新编程替代拼接 (AS). 这种营养药物将异常的癌症转录组转移到正常模式,减少瘤生长并增加亡.
科学领域:
- * 瘤学 在线咨询
- * 分子生物学 * 分子生物学
- * 营养药学研究
背景情况:
- *三阴性乳腺癌 (TNBC) 由于转录组变化而表现出侵略性行为和抵抗性.
- * 替代拼接 (AS) 显著促进癌症特异性转录组,促进TNBC生长和耐药性.
- * 重编程AS电路对于延迟瘤发生或增强TNBC治疗反应至关重要.
研究的目的:
- * 为了研究黄类药原蛋白对TNBC相关的替代拼接的作用.
- * 为了确定是否可以重新编程TNBC转录组范围内的AS.
- *为了评估apigenin对瘤生长和apoptosis in vivo的影响.
主要方法:
- *人类TNBC瘤和非瘤组织的比较转录基因分析.
- * 研究阿皮基因与剪接因子的关联,特别是异质核核核糖核蛋白A2 (hnRNPA2).
- *使用TNBC异种移植小鼠模型进行体内研究,以评估原蛋白对增殖和亡的影响.
主要成果:
- * Apigenin被证明可以在TNBC相关的AS转录组中重新编程,受影响的事件被丰富在hnrnpa2基质中.
- * 原蛋白将与癌症相关的替代拼接异型 (ASI) 转移到非瘤组织中发现的异型.
- * 原蛋白优先影响抗亡和增殖因子的拼接,减少瘤增殖,并在体内增加亡,阻止TNBC生长.
结论:
- * 原蛋白有效地重编程转录组范围的TNBC特异性AS,诱导亡并阻碍瘤生长.
- *这些发现凸显了诸如阿皮基宁之类的营养药对改变癌症转录组的显著影响.
- * 原蛋白是一种潜在的治疗策略,可以影响三阴性乳腺癌治疗的结果.
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