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HMGB1-RAGE复合体的冷-EM结构及其对肺癌的抑制作用

Hyeon Jin Kim¹, Chang Woo Han¹, Mi Suk Jeong¹

¹Insitute of Systems Biology, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan 46241, Republic of Korea.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie

|April 30, 2025

概括

一种新型的HMGB1通过阻断RAGE相互作用来抑制癌症生长和转移,显著降低了肺癌,结直肠癌和胰腺癌中的线粒体功能障碍和自.

科学领域:

生物化学生化学
分子生物学分子生物学
在瘤学瘤学.

背景情况:

线粒体功能障碍和线粒体与包括癌症在内的各种人类疾病有关.
高流动性组盒1 (HMGB1) 蛋白通过与RAGE和TLRs的相互作用,促进癌细胞生长,转移和治疗耐药性.
HMGB1-RAGE信号激活ERK1/2,导致Drp1酸化,线粒体裂变和随后的自,导致癌症的进展.

研究的目的:

确定RAGE-HMGB1综合体的结构,并确定相互作用点.
根据复杂的结构合成HMGB1.
研究HMGB1在抑制癌症进展方面的治疗潜力.

主要方法:

使用冷电子显微镜以5.19 Å分辨率确定RAGE-HMGB1复合结构.
在RAGE (P66,G70,P71,S74,R77) 和HMGB1 (E145,K146,E153,E156) 上发现了特定的相互作用残留物.
一种HMGB1 (151 LKEKYEK 157) 被合成并测试了它对癌症细胞系的抑制作用.

主要成果:

RAGE-HMGB1复杂结构揭示了关键的相互作用部位,指导了的设计.
合成的HMGB1通过结合RAGE.有效地抑制了肺癌模型中的瘤生长,转移和入侵.
该显著抑制了线粒体功能障碍,自的启动,细胞活力,迁移和线粒细胞在结肠直肠和胰腺癌细胞系.

结论:

RAGE-HMGB1复杂结构为向癌症治疗提供了基础.
HMGB1是一种有前途的治疗剂,通过破坏HMGB1-RAGE信号传递来抑制癌症的进展.
通过这种来向线粒体功能障碍和自,为各种癌症提供了一种新的策略.

关键词:

抗癌治疗是一种治疗方法.化电磁波是一种冷电磁波.这就是HMGB1的特点.肺癌是一种肺癌.愤怒的愤怒愤怒的愤怒

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