期刊
IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES
卷 24, 期 6, 页码 752-759出版社
MASHHAD UNIV MED SCIENCES
DOI: 10.22038/ijbms.2021.52759.11903
关键词
Fibrosis; Macrophage infiltration; Obstructive nephropathy; Verbascoside Unil; ateral ureteral-obstruction
资金
- National Natural Science Foundation of China [(2017) 81760134]
- Science & Technology Committee of Guizhou Province [(2019) 2801, (2018) 5636, (2014)003, (2017)1102]
The study revealed that verbascoside could alleviate renal fibrosis in UUO rats by ameliorating renal dysfunction, reducing total nucleated cell numbers and collagen fibrils deposition, as well as down-regulating the expression of fibrosis-related proteins. Additionally, macrophage infiltration was mitigated by verbascoside treatment.
Y Objective(s): To explore the effect of verbascoside on renal fibrosis in unilateral ureteral obstruction (UUO) rats. Materials and Methods: Twenty Sprague-Dawley rats were randomly distributed into sham-operated, UUO, and UUO+Verbascoside groups. After two weeks of rat model construction, urine and blood samples were collected for biochemical analysis while kidney tissues were harvested for hematoxylin and eosin (H&E), Masson's Trichrome, and immunohistochemistry staining. Pearson coefficient was used to analyze the correlation between the two proteins. Results: Verbascoside improved UUO-induced renal dysfunction as detected by decreased serum creatinine, urea nitrogen, and urinary protein excretion rate. In UUO rats, H&E staining result revealed increased total nucleated cell number, and Masson's Trichrome staining results showed tubular interstitial fibrosis with the deposition of collagen fibrils. Besides, expressions of fibrosis-related proteins including collagen type I (COL-I), alpha-smooth muscle actin (a-SMA), and tissue inhibitor of metalloproteinase 2 (TIMP2) expressed higher in the UUO group. Moreover, macrophage infiltrationrelated factors such as CD68+, F4/80+ cells, and suppressor of cytokine signaling-3 (SOCS3) were significantly higher in the UUO group than in sham-operated rats. However, after administration with verbascoside, the accumulation of collagen fibrils and total nucleated cell numbers were mitigated. Likewise, macrophage infiltration was extenuated and fibrosis-related proteins were down-regulated in the UUO+Verbascoside rats. Correlation analysis indicated that macrophage infiltration-related markers were related to fibrosis-related factors. Conclusion: Verbascoside could alleviate renal fibrosis in UUO rats probably through ameliorating macrophage infiltration.
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