Osthole protects against inflammation in a rat model of chronic kidney failure via suppression of nuclear factor-κB, transforming growth factor-β1 and activation of phosphoinositide 3-kinase/protein kinase B/nuclear factor (erythroid-derived 2)-like 2 signaling
Affiliations: Department of Kidney Transplantation, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
- Published online on: August 1, 2017 https://doi.org/10.3892/mmr.2017.7125
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Multiple pharmacological applications of osthole have been previously recognized, including antioxidant, anti-inflammatory, anti‑platelet and estrogenic effects, and resistance to pain. The present study investigated the protective effects of osthole against inflammation in a rat model of chronic kidney failure (CRF) and the underlying mechanisms. Osthole treatment with significantly reversed CRF‑induced changes in serum creatinine, calcium, phosphorus and blood urea nitrogen levels in CRF rats. Male Sprague‑Dawley rats (age, 8 weeks) received 200 mg/kg 2% adenine suspension to induce CRF in the model group. In the osthole‑treated group, rats received 200 mg/kg 2% adenine suspension + osthole (40 mg/kg, intravenously). The results revealed that treatment with osthole significantly inhibited CRF‑induced tumor necrosis factor‑α, interleukin (IL)‑8 and IL‑6 expression, and suppressed nuclear factor‑κB (NF‑κB) protein expression in CRF rats. Osthole treatment significantly attenuated the protein expression of transforming growth factor‑β1 (TGF‑β1), reduced monocyte chemoattractant protein‑1 activity and increased the phosphoinositide 3‑kinase (PI3K)/protein kinase B (Akt) ratio in CRF rats. These results suggested that osthole protects against inflammation in a rat model of CRF via suppression of NF‑κB and TGF‑β1, and activation of PI3K/Akt/nuclear factor (erythroid‑derived 2)‑like 2 signaling. Therefore, osthole may represent a potential therapeutic agent for the treatment of CRF.