Activation of TRPV4 channel in pancreatic INS‐1E beta cells enhances glucose‐stimulated insulin secretion via calcium‐dependent mechanisms
Activation of TRPV4 channel in pancreatic INS‐1E beta cells enhances glucose‐stimulated insulin secretion via calcium‐dependent mechanisms
复制标题
DOI:
10.1016/j.febslet.2013.08.025
复制
发表时间:
2013-10
期刊:
影响因子:
3.5
通讯作者:
M. Skrzypski;M. Kakkassery;S. Mergler;C. Grötzinger;N. Khajavi;M. Sassek;D. Szczepankiewicz;B. Wiedenmann;K. Nowak;M. Strowski
中科院分区:
文献类型:
--
作者:
M. Skrzypski;M. Kakkassery;S. Mergler;C. Grötzinger;N. Khajavi;M. Sassek;D. Szczepankiewicz;B. Wiedenmann;K. Nowak;M. Strowski
Transient receptor potential channel vanilloid type 4 (TRPV4) is a Ca2+- and Mg2+-permeable cation channel that influences oxidative metabolism and insulin sensitivity. The role of TRPV4 in pancreatic beta cells is largely unknown. Here, we characterize the role of TRPV4 in controlling intracellular Ca2+and insulin secretion in INS-1E beta cells. Osmotic, thermal or pharmacological activation of TRPV4 caused a rapid rise of intracellular Ca2+and enhanced glucose-stimulated insulin secretion. In the presence of the TRPV channel blocker ruthenium red (RuR) or after suppression of TRPV4 protein production, TRPV4 activators failed to increase [Ca2+]iand insulin secretion in INS-1E cells.