骨橋蛋白和核轉(zhuǎn)錄因子在慢性環(huán)孢素A腎毒性大鼠腎組織中的作用
[Abstract]:AIM: To investigate the expression of osteopontin (oPN) and the role of nuclear transcription factors in chronic cyclosporine A (CsA) nephrotoxicity in rats.
Methods: Male Sprague-Dawley rats were fed low-salt diet (0.05% sodium salt) and divided into two groups. Normal control group was given subcutaneous injection of olive oil (1m1/kg/d); chronic CsA nephrotoxicity group was given subcutaneous injection of cyclosporine A (15mg/kg/d) for 4 weeks. The expression of OPN at mRNA and protein levels was detected by RNA imprinting and immunohistochemical staining, and the binding activity of nuclear transcription factors (NF-kappa B and AP-1) and the expression of I-kappa B protein were determined by gel electrophoretic mobility shift assay (EMSA) and immunoblotting.
Results: Compared with the control group, the toxic group showed renal tubulointerstitial banded fibrosis [(38.9 +3.3)% vs. (0.0 +0.0)%, P 0.01] and a large number of ED-1 positive cell infiltration [(89 +9)% vs. (7 +2)%, P 0.01]. Compared with the control group, the expression of OPN mRNA and protein in the toxic group increased significantly [(729 +37)% vs. (103 +4)%, P 0.01], and distributed in the renal tubules. In the toxic group, the binding activity of nuclear transcription factor NF-kappa B (218 65507 CONCLUSION: The up-regulation of OPN expression in chronic cyclosporine A nephrotoxicity is associated with the degree of tubulointerstitial fibrosis and may be closely related to the activation of NF-kappa B and AP-1.
【學(xué)位授予單位】:延邊大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類(lèi)號(hào)】:R692
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