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酸盐激酶M2 (PKM2) 通过通过Akt/mTOR通路调节糖解重编程来调节类风湿性关节炎
Hai-Yang Liao1, Guo-Hua Zhang2, Jian-Xiong Zheng1
1The Second Clinical Medical College of Lanzhou University, Lanzhou 730000, PR China; Department of Rheumatology, Lanzhou University Second Hospital, Lanzhou 730000, PR China.
The international journal of biochemistry & cell biology
|October 8, 2025
概括
酸激酶M2 (PKM2) 通过促进突细胞中的葡萄糖代谢来驱动类风湿性关节炎 (RA) 的炎症. 抑制PKM2可以降低RA症状和关节损伤,这表明它可以.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 病理学 病理学 病理学
背景情况:
- 类风湿性关节炎 (RA) 是一种慢性自身免疫性疾病,导致关节炎症和破坏.
- 纤维细胞样突细胞 (FLSs) 是RA病变的关键参与者,增强的糖解有助于关节损伤.
- 酸激酶M2 (PKM2) 是关键的酶在糖解涉及RA,但其确切的作用仍然不清楚.
研究的目的:
- 为了研究PKM2在RA病变发生过程中的作用.
- 探索PKM2影响RA-FLS炎症反应和葡萄糖代谢的机制.
- 评估PKM2抑制在原诱导关节炎 (CIA) 鼠标模型中的治疗潜力.
主要方法:
- 在人类的RA突组织和RA-FLS中检测到PKM2表达.
- 评估PKM2对RA-FLS中葡萄糖摄取,ATP,乳酸盐生产和细胞因子释放的影响.
- 向CIA老鼠服用PKM2抑制剂,以评估对关节炎症状,炎症,骨质侵蚀和信号通路的影响.
主要成果:
- 在RA突组织和RA-FLS中,PKM2被上调.
- 在RA-FLS中,PKM2促进了葡萄糖代谢和促炎性细胞因子的释放 (TNF-α,IL-1β,IL-6).
- 抑制PKM2改善了CIA老鼠关节炎,减少了炎症和骨质侵蚀,并抑制了Akt/mTOR通路.
结论:
- 在RA-FLS中,PKM2通过Akt/mTOR途径调节糖分重编程,促进细胞因子的释放和RA的进展.
- 向PKM2通过调节糖溶性代谢,为类风湿性关节炎提供了一个潜在的治疗策略.
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