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糖蛋白非转移蛋白B (GPNMB):溶酶体与肥胖之间缺失的联系

Valentina Bianco¹, Dagmar Kratky^1,2

¹Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria.

Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association

|November 13, 2023

概括

肥胖会促进炎症和心血管疾病. 糖蛋白非转移性黑色素瘤蛋白B (GPNMB) 扮演着双重角色,可溶性GPNMB可能通过促进脂肪积累来恶化肥胖.

科学领域:

生物化学生物化学
免疫学免疫学免疫学
代谢障碍代谢障碍代谢障碍

背景情况:

肥胖是一种与心血管疾病相关的全球流行病,通常是由白脂肪组织 (WAT) 和巨细胞透的炎症驱动的.
溶解体应激和代谢转变是由于巨细胞内死亡脂肪细胞的脂质积累而发生的.
糖蛋白非转移性黑色素瘤蛋白B (GPNMB) 是细胞表面蛋白质,由 lysosomal 压力上调并与炎症性疾病有关.

研究的目的:

审查糖蛋白非转移性黑色素瘤蛋白B (GPNMB) 在肥胖中的作用.
为了澄清GPNMB在与肥胖相关的代谢障碍中的功能.
探索GPNMB作为脂质相关疾病的潜在生物标志物.

主要方法:

关于GPNMB和肥胖的研究文献综述.
在巨细胞和脂肪细胞中分析GPNMB的功能.
通过 lysosomal 压力调节 GPNMB 的研究.

主要成果:

GPNMB是由 lysosomal 压力上调调节的,并且与肥胖有关.
膜结合的GPNMB显示出对代谢障碍的保护作用.
溶性GPNMB似乎促进了WAT中的脂质生成.

结论:

GPNMB在肥胖症中表现出复杂的,取决于背景的作用.
可溶性GPNMB可能是肥胖相关代谢障碍进展的关键调解者.
作为诊断和管理脂质相关疾病的潜在生物标志物,GPNMB需要进一步研究.

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