Akt inhibitor deguelin aggravates inflammation and fibrosis in myocarditis | ||
| Iranian Journal of Basic Medical Sciences | ||
| مقاله 5، دوره 22، شماره 11، بهمن 2019، صفحه 1275-1282 اصل مقاله (1006.42 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22038/ijbms.2019.35518.8473 | ||
| نویسندگان | ||
| Shanshan Li1؛ Yue Wang1؛ Chunming Zhao2؛ Meixiang Zhang1؛ Wei Wang1؛ Xiaowei Yu1؛ Jiao Huang1؛ Zhao Wang1؛ Bo Zhu3؛ Cheng qian Yin3؛ Hongxing Cai* 1 | ||
| 1Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China | ||
| 2Human anatomy and Histology and Embryology, Xuzhou Medical University, Xuzhou, Jiangsu 221002, China | ||
| 3Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, Massachusetts 02118, USA | ||
| چکیده | ||
| Objective(s): Myocarditis is characterized by inflammatory cell infiltration in myocardial stroma. Attenuation of tumor necrosis factor (TNF)-α and interleukin (IL)-1β is a reliable mark for improving the prognosis. Protein kinase B (Akt) plays an important role in the development and progression of myocarditis. The specific role of the natural inhibitor of Akt, Deguelin, on myocarditis has not been reported. In this study, we used deguelin to investigate the effects of natural Akt inhibitor on myocarditis in experimental autoimmune myocarditis (EAM) rats. Materials and Methods: EAM rat models were made by using Lewis rats and Deguelin was injected intraperitoneally on day 3, 6, 9, 12 and 15 after successful modeling. On day 18, rats were sacrificed and the heart weight (HW)/ body weight (BW) ratio were measured. The pathological changes, pathological scores and fibrosis area were evaluated after H.&E. and Masson’s trichrome staining. The mRNA levels of TNF-α and IL-1β were measured by RT-qPCR, while the protein expressions of TNF-α and IL-1β were detected by immunohistochemical staining and Western bolt. The protein expressions of Akt, Akt1, phosphorylated (p-) Akt and nuclear factor (NF)-κB were detected by Western bolt. Results: We found that the TNF-α and IL-1β levels, inflammatory scores and fibrosis areas were markedly increased after 18 days deguelin administration. Conclusion: Akt inhibition with deguelin may aggravate myocarditis of EAM rats. | ||
| کلیدواژهها | ||
| Akt؛ Deguelin؛ Fibrosis؛ Inflammation؛ Myocarditis | ||
| مراجع | ||
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