伊诺西六酸盐通过逆转持续激活的PERK和eEF2的二胺基修饰引起的衰老来增强化疗
Binghui Xu1, Qingan Jia1, Xia Liao2
1Xi'an Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Research, Northwestern Polytechnical University, Xi'an 710038, China; Shaanxi Provincial Key Laboratory of Infection and Immune Disease, Shaanxi Provincial People's Hospital, Xi'an 710038, China.
结直肠癌中牛利普拉丁耐药性源于内分泌网膜压力和细胞衰老. 伊诺西六酸盐 (IP6) 通过抑制关键的压力路径来逆转这种化学抵抗.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 奥克萨利普拉丁是晚期结直肠癌 (CRC) 的关键化疗.
- 对氧沙的获得性耐药性限制了其长期疗效.
- 了解耐药机制对于改善CRC治疗至关重要.
研究的目的:
- 调查结肠直肠癌中氧沙胺耐药性的机制.
- 为了确定潜在的治疗药物来克服抗氧沙的耐药性.
主要方法:
- 产生抗氧沙的结直肠癌模型.
- 用于基因表达分析的RNA测序 (RNA-seq).
- 在体查内质网膜 (ER) 抑制剂.
- 表面等离子体共振 (SPR) 用于结合确认.
- 在体外验证治疗效果和机制.
主要成果:
- 抗氧化抗性主要是由细胞对持续刺激的反应驱动的.
- 持续的刺激诱导的内等质网膜应激 (ERs) 和细胞衰老是抗性的核心原因.
- 伊诺西六酸盐 (IP6) 被确定为一种强大的ER抑制剂.
- IP6通过抑制二胺基对真核延长因子2 (eEF2) 的修饰和PERK激活来逆转化学抵抗.
结论:
- 抗氧化抗性涉及细胞衰老,由持久激活的PERK和eEF2二胺基修饰介导.
- 与IP6的联合治疗有效地逆转结直肠癌的化学抵抗.
- IP6代表了一种有前途的治疗策略,以克服CRC中氧化抗性.
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