声波刺因子GLI1通过可诱导的葡萄糖化传递耐药性
Hiba Ahmad Zahreddine1, Biljana Culjkovic-Kraljacic1, Sarit Assouline2
1Institute for Research in Immunology and Cancer and Department of Pathology and Cell Biology, Université de Montréal, P.O. Box 6128, Downtown Station, Montréal, Québec H3C 3J7, Canada.
Nature
|May 30, 2014
概括
在急性髓性白血病 (AML) 中,通过向GLI1.1,克服对细胞arabine和ribavirin的耐药性. 抑制GLI1,一种转录因子,可以防止药物失活,为AML治疗提供了一种新的策略.
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:
- 药物耐药性是急性髓性白血病 (AML) 治疗的一个重大挑战.
- 基于cytarabine (Ara-C) 的疗法为AML患者提供有限的长期存活率.
- 利巴维林是一种eIF4E抑制剂,最初在AML中表现有前途,但耐药性发展.
研究的目的:
- 确定 AML 中对利巴维林和Ara-C 的耐药性机制.
- 调查GLI1和UGT1A在调解这种抗性的作用.
- 探索克服AML中药物耐药性的策略.
主要方法:
- 对抗性AML细胞中的基因表达的分析.
- 研究GLI1在药物代谢中的功能作用.
- 在临床前模型中评估GLI1抑制的疗效.
主要成果:
- 在耐药细胞中观察到高水平的质瘤相关蛋白1 (GLI1) 和UDP葡萄糖转移酶 (UGT1A) 酶.
- 发现GLI1足以诱导瑞巴维林和Ara-C的UGT1A依赖型葡萄糖化,从而导致耐药性.
- 在基因或药理上抑制GLI1,恢复了对利巴维林和Ara-C.的敏感性.
结论:
- 已经确定了一种涉及GLI1和UGT1A在AML中的药物耐药性的新机制.
- GLI1在通过葡萄糖化对利巴维林和Ara-C的失活起着至关重要的作用.
- 准GLI1是一个潜在的治疗策略,以克服AML患者的耐药性.
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