Journal
MOLECULAR AND CELLULAR BIOCHEMISTRY
Volume -, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1007/s11010-023-04750-y
Keywords
Diabetic nephropathy; Renal fibrosis; PI3K/AKT/GSK3 beta signaling; Apoptosis; c-kit positive stem cell
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This study evaluated the therapeutic effect of c-kit positive cells derived from rat bone marrow on diabetic nephropathy. It was found that the administration of c-kit positive cells could reduce renal fibrosis, attenuate inflammation and restore the expression levels of PI3K/AKT/GSK-3β pathway. Additionally, c-kit positive cells decreased renal apoptosis. These findings suggest that c-kit positive cells could be used as an alternative cell source for treating diabetic nephropathy.
Stem cell-based therapy has been proposed as a novel therapeutic strategy for diabetic nephropathy. This study was designed to evaluate the effect of systemic administration of rat bone marrow-derived c-kit positive (c-kit+) cells on diabetic nephropathy in male rats, focusing on PI3K/AKT/GSK-3 ss pathway and apoptosis as a possible therapeutic mechanism. Twenty-eight animals were randomly classified into four groups: Control group (C), diabetic group ( D), diabetic group, intravenously received 50 mu l phosphate-buffered saline (PBS) containing 3 x-10(5) c-kit- cells (D +ckit(-)); and diabetic group, intravenously received 50 mu l PBS containing 3 x10(5) c- Kit(-) positive cells (D +ckit(+)). Control and diabetic groups intravenously received 50 mu l PBS. C-kit+ cell therapy could reduce renal fibrosis, which was associated with attenuation of inflammation as indicated by decreased TNF-a and IL-6 levels in the kidney tissue. In addition, c-kit+ cells restored the expression levels of PI3K, pAKT, and GSK-3 ss proteins. Furthermore, renal apoptosis was decreased following c-kit+ cell therapy, evidenced by the lower apoptotic index in parallel with the increased Bcl-2 and decreased Bax and Caspase- 3 levels. Our results showed that in contrast to c-kit- cells, the administration of c-kit(+) cells ameliorate diabetic nephropathy and suggested that c-kit(+) cells could be an alternative cell source for attenuating diabetic nephropathy.
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