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English Abstract
Journal Article
[Investigation the Inhibitory Effects of Kaempferol on Rat Renalmesangial Cells Proliferation under High Glucose Condition].
Sichuan da Xue Xue Bao. Yi Xue Ban = Journal of Sichuan University. Medical Science Edition 2017 July
OBJECTIVE: To investigate the protective effects of kaempferol on rat renal mesangial cells under high glucose condition and explore its mechanism.
METHODS: The HBZY-1 cells were divided into normal glucose group (5.5 mmol/L), high glucose group (25 mmol/L), 10 μmol/L kaempferol+high glucose group, and 30 μmol/L kaempferol+high glucose group. Cell proliferative ability was measured by MTT; cell cycle was analyzed by flow cytometry; mRNA and protein levels were determined by Real-time PCR and Western blot, respectively.
RESULTS: Kaempferol had no effect on the proliferative ability of rat renal mesangial cells under normal glucose (5.5 mmol/L) condition. High glucose (25 mmol/L) enhanced the cell proliferative ability, and this effect was antagonized by kaempferol (10-30 μmol/L) treatment. High glucose reduced the cell population at G0/G1 phase with an associated increase in S phase, and had no effect on G₂/M phase; and kaempferol treatment restored high glucose-induced changes in cell cycle. Kaempferol also prevented high glucose-induced increase in fibronectin and connective tissue growth factor mRNA and protein expression levels. Kaempferol also prevented high glucose-induced increase in fibronectin and connective tissue growth factor mRNA and protein expression levels. Further, high glucose caused an increase in protein level of phosphorylated p38 mitogen-activated protein kinases (p38 MAPK), which was antagonized by kaempferol treatment.
CONCLUSION: Our results suggest that kaempferol exerts its protective effect on rat renal mesangial cells under high glucose condition via p38 MAPK signaling pathway.
METHODS: The HBZY-1 cells were divided into normal glucose group (5.5 mmol/L), high glucose group (25 mmol/L), 10 μmol/L kaempferol+high glucose group, and 30 μmol/L kaempferol+high glucose group. Cell proliferative ability was measured by MTT; cell cycle was analyzed by flow cytometry; mRNA and protein levels were determined by Real-time PCR and Western blot, respectively.
RESULTS: Kaempferol had no effect on the proliferative ability of rat renal mesangial cells under normal glucose (5.5 mmol/L) condition. High glucose (25 mmol/L) enhanced the cell proliferative ability, and this effect was antagonized by kaempferol (10-30 μmol/L) treatment. High glucose reduced the cell population at G0/G1 phase with an associated increase in S phase, and had no effect on G₂/M phase; and kaempferol treatment restored high glucose-induced changes in cell cycle. Kaempferol also prevented high glucose-induced increase in fibronectin and connective tissue growth factor mRNA and protein expression levels. Kaempferol also prevented high glucose-induced increase in fibronectin and connective tissue growth factor mRNA and protein expression levels. Further, high glucose caused an increase in protein level of phosphorylated p38 mitogen-activated protein kinases (p38 MAPK), which was antagonized by kaempferol treatment.
CONCLUSION: Our results suggest that kaempferol exerts its protective effect on rat renal mesangial cells under high glucose condition via p38 MAPK signaling pathway.
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