Chinese Journal of Clinical Anatomy ›› 2022, Vol. 40 ›› Issue (4): 425-431.doi: 10.13418/j.issn.1001-165x.2022.4.10

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Effect of Urantide on the expression of ERK1/2 and P38 in the spleen of atherosclerotic rats

Xu Yuhang1, Li Ying1, Xie Yunpeng2, Wang Tu1, Cui Haipeng1, Zhao Juan1*   

  1. 1. Department of  Pathophysiology, Chengde Medical University, Chengde 067000, China; 2. Affiliated Hospital of Chengde Medical University, Chengde 067000, China
  • Received:2021-07-04 Online:2022-07-25 Published:2022-07-26

Abstract: Objective   To observe the effect of Urantide on the expression of ERK1/2 and  P38 in MAPK signaling pathway  in  spleen of  atherosclerotic rats, and to explore the effect and mechanism  of  Urantide  on  ERK1/2 and P38 MAPK signaling pathway in spleen.    Methods    A total of 180 wistar rats were randomly divided into a normal group, an AS group, a Simvastatin group, a Urantide 3 days, 7 days and 14 days group. The thoracic aorta and spleen of rats were observed by HE staining. Immunofluorescence, Western blotting were used to detect the expression of ERK1/2 and P38 in the spleen of rats.    Results    Compared with control group, the HE staining of AS group showed typical AS pathological changes in thoracic aorta, and hyaline degeneration in the central artery of spleen, the positive expression of  p-ERK1/2 and p-P38 protein in the spleen of rats significantly increased (P<0.05). Compared with AS group, the hyaline degeneration in spleen significantly reduced in Urantide groups and Simvastatin group, the positive expression of p-ERK1/2 and p-P38 protein in spleen significantly decreased, especially in the Urantide 14 days group (P<0.05).    Conclusions    Urantide can improve the degree of pathological changes in spleen of AS rats by inhibiting the expression of ERK1/2 and P38.

Key words: Atherosclerosis; ,  , Spleen; ,  , Urotensin Ⅱ; ,  , Urantide; ,  , MAPK; ,  , ERK1/2; ,  , P38 

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