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GPR35可以防止透应激诱导的细胞损伤

Joshua E Elias^1,2, Mekdes Debela¹, Gavin W Sewell^1,2

¹Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, CB2 0AW, UK.

Communications biology

|March 23, 2025

概括

G蛋白结合受体35 (GPR35) 调节离子流量,影响细胞大小和营养物质的运输. 它的功能障碍与疾病和改变的细胞平衡有关.

科学领域:

细胞生物学细胞生物学
分子生物学分子生物学
生理学生理学生理学

背景情况:

G蛋白结合受体35 (GPR35) 是一个孤儿受体,与癌症发展有关.
GPR35在调节Na+/K+-ATPase及其信号传递方面发挥着作用.
了解GPR35的功能对于其潜在的治疗向至关重要.

研究的目的:

研究GPR35在离子流和细胞透压调节中的作用.
为了确定GPR35缺乏和变异对细胞运输和恒温的影响.
探索GPR35,饮食和肠道上皮细胞特征之间的联系.

主要方法:

利用HepG2和SW480细胞系来研究GPR35的功能.
评估了细胞内Na+水平,透压和谷氨酸的进口.
研究了高盐饮食对野生型小鼠的影响,并将它们与Gpr35-/- littermates进行了比较.

主要成果:

缺GPR35导致细胞内Na+的增加,透应激,细胞大小的增加,以及减少谷氨酸的摄取.
该GPR35-T108M变体导致细胞内Na+降低,并增强了谷氨酸的吸收.
野生型小鼠的高盐饮食模仿了Gpr35-/-小鼠的肠表型,其杯细胞减少.

结论:

GPR35极为关键地调节了离子流量,细胞透压和Na+依赖的运输.
GPR35功能障碍会影响细胞平衡和营养进口,并对疾病产生影响.
GPR35对Na+/K+-ATPase的控制对于维持离子平衡和传送器功能至关重要.

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