肝细胞气球飞行是由于高度明显的葡萄糖发生,可能与肥胖症和代谢重编程有关
Silvia Ribback1, Kristin Peters1, Mohd Yasser1
1Institut für Pathologie, Universitaetsmedizin Greifswald, Greifswald, Germany.
Journal of clinical and translational hepatology
|January 22, 2024
概括
慢性肝病中的气球化肝细胞显示代谢重编程,而不是退化. 这些活跃的细胞,标志着糖原体和肥胖症,表明一种 preneoplastic性质.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 肝细胞气球 (BH) 在慢性肝病中很常见,通常与马洛里-克体 (MDB) 相关.
- 传统上被视为退行性病变,BH与前性病变具有共同的特征.
- 这项研究质疑BH是垂死的细胞还是活跃的,潜在的瘤细胞.
研究的目的:
- 为了研究人类肝硬化肝脏中的气球化肝细胞 (BH) 的特征.
- 为了确定BH是否代表细胞死亡或预新生状态.
- 分析BH内的代谢和信号通路.
主要方法:
- 检查了96个患有肝硬化的人类肝脏样本.
- 在序列段中使用了酶和免疫组织化学.
- 评估了葡萄糖/脂质储存,酶活性和原型瘤信号.
主要成果:
- 在43.8%的肝硬化患者中发现了BH,表现为明显的葡萄糖生成症和/或脂肪脂肪症.
- 观察到酶活动的改变 (例如,葡萄糖-6-酸盐酶,葡萄糖-6-酸盐脱酶) 和代谢途径.
- 检测到胰岛素信号的上调,葡萄糖运输体4和mTOR通路与新型脂质生成有关.
结论:
- BH表现出显著的葡萄糖生成和肥胖症,类似于前瘤病变.
- BH是代谢重编程的,可活的细胞,而不仅仅是退化的.
- 这些发现表明,气球型肝细胞的潜在 preneoplastic性质.
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