GPER1激活调节脏纯能P2Y2受体自然尿路的活性
Supaporn Kulthinee1, Victoria L Nasci1, David M Pollock2
1Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
雌激醇激活G蛋白结合雌激素受体1 (GPER1),增强脏的分泌. 在雌性大鼠中,GPER1可调节Cx30/ATP/P2Y2通路,降低雌性大鼠的血压.
科学领域:
- 内分泌学 在内分泌学.
- 腎臟病學 (nephrology) 是一種醫學專業.
- 分子生物学分子生物学
背景情况:
- 雌激醇的尿作用是由G蛋白结合雌激素受体1 (GPER1) 介导的.
- 通过连素30 (Cx30) 释放的细胞外腺三酸盐 (ATP) 激活P2Y2受体,通过抑制表皮Na+通道 (ENaC) 来促进自然.
- 卵巢切除减少了斯普拉格·道利大鼠的P2Y2受体表达,这表明雌激素状态和这种途径之间存在联系.
研究的目的:
- 调查GPER1激活调节雌性大鼠脏Cx30/ATP/P2Y2/ENaC信号通路的假设.
- 为了确定GPER1激活是否影响血压和脏盐处理在卵巢切除和高盐摄入的背景下.
主要方法:
- 雌性Sprague Dawley大鼠进行了卵巢切除,并通过透式迷你接收了GPER1激动剂 (G1) 或载体.
- 小鼠接受了正常和高盐饮食.
- 远程测量用于监测平均动脉压.
- 分析了脏Cx30和P2Y2受体的mRNA表达.
- 还进行了GPER1缺乏小鼠的研究和完整大鼠的髓注试验.
主要成果:
- 卵巢切除会增加血压,G1治疗可以预防这种情况.
- 高盐摄入进一步提高了血压,G1也可以减轻这种影响.
- 在卵巢切除的老鼠中,G1治疗增加了脏Cx30和P2Y2受体mRNA表达.
- 在小鼠中的GPER1缺失减少了脏Cx30和P2Y2受体表达.
- 髓G1输液增加了尿中的ATP和分泌,而这种分泌被P2受体对抗剂苏拉阻断.
结论:
- GPER1的激活可提高脏中尿素Cx30/ATP/P2Y2受体信号通路的调节.
- 这一途径有助于雌性大鼠GPER1激活的降血压效应.
- GPER1在调节脏盐处理和血压恒温方面发挥着重要作用.
更多相关视频
12:19Single-channel Analysis and Calcium Imaging in the Podocytes of the Freshly Isolated Glomeruli
Published on: June 27, 2015
07:15Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway
Published on: August 23, 2024
相关概念视频
GPCRs Regulate Adenylyl Cylase Activity
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Hormonal Regulation
Glomerular Filtration Rate and its Regulation
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...
Endocrine Signaling
G-Protein Gated Ion Channels
Sensory...
