USP38通过对黑色素瘤中CTNNB1的二基化来调节自性依赖性铁亡
1Department of Dermatology, First Affiliated Hospital of Nanchang University, Nanchang, China.
International journal of biological macromolecules
|December 17, 2025
概括
乌比基特异性蛋白酶38 (USP38) 通过稳定Beta 1 (CTNNB1) 素,抑制铁亡,驱动黑色素瘤的进展. 准这种USP38-CTNNB1通路为黑色素瘤提供了一个有前途的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 黑色素瘤的发病率正在上升,这带来了临床挑战.
- 乌比基特异蛋白酶38 (USP38) 在黑色素瘤进展中的作用尚不清楚.
- USP38与各种癌症的瘤进展有关.
研究的目的:
- 为了阐明黑色素瘤中USP38的机制.
- 研究USP38在黑色素瘤细胞增殖,迁移,上皮细胞-介质细胞过渡和铁亡中的作用.
- 在USP38路径中识别治疗点.
主要方法:
- 对人类黑色素瘤组织中USP38表达的分析.
- 在实验室研究黑色素瘤细胞的增殖,迁移和ferroptosis.
- 在体内和体外实验涉及USP38和Catenin Beta 1 (CTNNB1) 操纵的实验.
- 自抑制和铁灭诱导试验.
- 乌比基提尼测定和西部涂抹.
主要成果:
- USP38在黑色素瘤组织中过度表达,促进增殖,迁移和EMT,同时抑制铁亡.
- 通过USP38 Knockdown抑制生长,激活自性依赖性铁亡,并通过去除K48相关的无化,稳定CTNNB1.
- CTNNB1倒置可以逆转USP38驱动的瘤进展.
- 联合USP38敲除和CTNNB1降解剂NF764协同抑制瘤生长并诱导铁亡.
结论:
- USP38驱动黑色素瘤的进展,并通过CTNNB1稳定和自抑制铁亡.
- 针对USP38-CTNNB1轴是黑色素瘤的潜在治疗策略.
- 在黑色素瘤中,USP38调节了自性依赖性铁亡.
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