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MFSD7C通过抑制铁化来保护血液溶解诱导的肺损伤

Huirui Wang¹, Xiaona You², Jingcheng Wang¹

¹Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan, China.

Nature communications

|September 19, 2024

概括

含有7C (MFSD7C) 的主要促进者超级家族域通过阻断铁亡来防止血液溶解导致的肺损伤. MFSD7C可以保护小鼠免受肺损伤,为血液溶解障碍提供新的治疗点.

科学领域:

细胞生物学细胞生物学
肺部病理学肺部病理学
生物化学生化学

背景情况:

血液溶解与肺损伤和疟疾和状细胞病 (SCD) 等疾病的不良结果有关.
连接血液溶解与肺损伤的病理机制尚未完全理解.
铁亡是一种受调节的细胞死亡形式,与各种细胞损伤有关.

研究的目的:

研究含有7C的大方便者超级家族域 (MFSD7C) 在保护肺部免受血液溶解引起的损伤方面的作用.
阐明MFSD7C在血液溶解并发症的背景下影响铁亡的分子机制.
评估MFSD7C在血液溶解疾病模型中预防肺损伤的治疗潜力.

主要方法:

在血液溶解条件下研究了MFSD7C在HuLEC-5A细胞中的作用.
分析了线粒体功能,脂质重塑和铁亡标志物 (ACSL4,GPX4).
在血液溶解的小鼠模型中 (HbSS-Townes和PHZ-challenged 7C-/-小鼠) 用MFSD7C mRNA载荷的纳米颗粒.

主要成果:

细胞中的MFSD7C缺乏促进了线粒体功能障碍,改变了脂质配置,并增加了脂质过氧化,导致铁亡.
系统输送的MFSD7CmRNA纳米颗粒成功地预防了实验血液溶解小鼠的肺损伤.
该研究确定了血液溶解并发症和铁亡之间的直接联系.

结论:

在血液溶解性肺损伤中,MFSD7C充当抗铁亡的保护因子.
缺乏MFSD7C会通过诱导铁亡来加剧肺损伤.
MFSD7C代表了一种有前途的治疗点,用于治疗血液溶解障碍中的肺部并发症.

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