硫氨酸通过增强Ca2+过载诱导的细胞亡来抑制黑色素瘤的进展
Di Wang1, Ansheng Xie1, Jialiang Luo2
1Dermatology Hospital, Southern Medical University, Guangzhou, China.
Journal of dermatological science
|April 7, 2025
概括
硫氨酸 (TTAU) 通过增加 (Ca2+) 流入和氧化应激,有效地抑制黑色素瘤,导致癌细胞死亡. 这种硫化 (H2S) 供体对黑色素瘤治疗具有前途.
科学领域:
- 在瘤学瘤学.
- 生物化学 生物化学
- 细胞生物学 细胞生物学
背景情况:
- 黑色素瘤是一种侵袭性皮肤癌,治疗选择有限.
- 针对恶性细胞中的过载 (Ca2+) 提供了一个潜在的治疗策略.
- 硫化 (H2S) 供体在黑色素瘤亡中的作用尚不清楚.
研究的目的:
- 为了研究提奥林 (TTAU) 的抗黑色素瘤作用,一个H2S供体.
- 阐明TTAU在黑色素瘤细胞中的作用的潜在分子机制.
主要方法:
- 使用了体外细胞培养和体内异种移植小鼠模型.
- 评估了细胞活力,细胞亡,Ca2+水平,线粒体损伤和活性氧物种 (ROS).
- 关键的信号分子包括TRPV1,NFATc1和ATF3通过西式涂抹分析.
主要成果:
- 在体外和体内,TTAU显著降低了黑色素瘤细胞活力,并诱导了亡.
- TTAU增加了细胞内Ca2+,上调TRPV1,并调节了NFATc1-ATF3通路.
- TTAU引发了线粒体损伤和ROS过度生产,导致了亡.
结论:
- TTAU通过Ca2+输入-NFATc1-ATF3信号和线粒体氧化应激来抑制黑色素瘤的进展.
- TRPV1可能会放大Ca2+的流入,增强TTAU的抗黑色素瘤作用.
- TTAU提出了一种新的治疗策略,用于黑色素瘤和其他瘤,使用活性硫物种.
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