To investigate the effect of pantoprazole on acute lung and kidney injury with sepsis and its possible mechanism. Rats were randomly divided into six groups, the status and lung wet/dry weight ratio were determined at various time points. Hematoxylin Eosin staining (HE) for pathological changes in the lungs and kidneys of rats with sepsis. Western blot (WB) and immunohistochemistry were used to detect the pulmonary surfactant protein A(SPA) and D(SPD). The levels of markers for kidney damage in serum and urine various time points were measured by ELISA. The apoptosis in lung and kidney tissue of rats were detected using TUNEL assay. Subsequently, the cell apoptosis of LPS-induced BEAS-2B and HK-2 cells after pantoprazole treatment were detected using flow cytometry. The levels of RHOA/ROCK signaling pathway proteins in the lung and kidney tissues and cells were detected using WB. Our results indicated that Pantoprazole could suppress the expression of inflammatory factors in the blood and alleviate pathological damage of lung and kidney tissues in rats with sepsis. Pantoprazole treatment could reduce apoptosis in lung and kidney tissues and inhibit cell apoptosis induced by LPS. In addition, pantoprazole can inhibit RHOA/ROCK signaling pathway proteins and the levels of inflammatory factors in LPS-induced BEAS-2B and HK-2 cells. Pantoprazole can improve the symptoms of acute lung and kidney injury in septic rats, which suggested that pantoprazole might be used to guide the treatment of sepsis.
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