独立于GPX4和受性激素差异调节的铁死监测
Deguang Liang1, Yan Feng1, Fereshteh Zandkarimi2
1Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
Cell
|June 2, 2023
概括
研究人员发现脂修饰酶MBOAT1和MBOAT2抑制细胞死亡途径铁亡. 这一发现为疾病中依赖铁的细胞死亡提供了新的治疗点,独立于已知的抑制剂,如GPX4或FSP1.
科学领域:
- 生物化学
- 细胞生物学
- 癌症学
背景情况:
- 铁是一个依赖于铁的细胞死亡过程,涉及到许多疾病.
- 已知的铁灭菌抑制剂包括谷氨过氧化酶4 (GPX4) 和铁灭菌抑制蛋白1 (FSP1).
研究的目的:
- 为了确定铁灭的新型调节剂.
- 研究脂修饰酶在抑制铁的作用.
主要方法:
- 整个基因组的CRISPR激活屏幕.
- 对已识别的基因进行机械研究.
- 铁死诱导和抑制的分析.
主要成果:
- 鉴定出脂修饰酶MBOAT1和MBOAT2是新的铁灭抑制剂.
- MBOAT1/ 2 通过改变细胞脂特征来抑制铁,独立于GPX4或FSP1.
- 分别通过雌激素受体 (ER) 和雄激素受体 (AR) 进行上调.
- 结合ER/ AR抗剂和ferroptosis诱导疗法抑制了ER+乳腺癌和AR+前列腺癌的生长,即使在耐药病例中也是如此.
结论:
- MBOAT1和MBOAT2代表了一种新的GPX4/FSP1独立的铁灭抑制途径.
- 向MBOAT1/ 2与铁灭诱导剂一起显示出治疗荷尔蒙受体阳性癌症的前景,包括耐药形式.
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