Abstract
Serum and glucocorticoid-regulated kinases (SGK) are serine/threonine kinases that belong to AGC. The SGK-1, which responds to stress, controls a range of ion channels, cell growth, transcription factors, membrane transporters, cellular enzymes, cell survival, proliferation and death. Its expression is highly controlled by various factors such as hyperosmotic or isotonic oxidative stress, cell shrinkage, radiation, high blood sugar, neuronal injury, DNA damage, mechanical stress, thermal shock, excitement, dehydration and ischemia. The structural and functional deterioration that arises after a period of ischemia when blood flow is restored is referred to as ischemia/ reperfusion injury (I/R). The current review discusses the structure, expression, function and degradation of SGK-1 with special emphasis on the various ischemic injuries in different organs such as renal, myocardial, cerebral, intestinal and lungs. Furthermore, this review highlights the various therapeutic agents that activate the SGK-1 pathway and slow down the progression of I/R injuries.
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