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BTG2 interference ameliorates high glucose-caused oxidative stress, cell apoptosis, and lipid deposition in HK-2 cells
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作者 WENjuAN ZHU zhengzheng ju FAN CUI 《BIOCELL》 SCIE 2024年第9期1379-1388,共10页
Objective:Diabetic nephropathy(DN)is a deleterious microangiopathy of diabetes,constituting a critical determinant of fatality in diabetic patients.This work is purposed to disclose the effects and modulatory mechanis... Objective:Diabetic nephropathy(DN)is a deleterious microangiopathy of diabetes,constituting a critical determinant of fatality in diabetic patients.This work is purposed to disclose the effects and modulatory mechanism of BTG anti-proliferation factor 2(BTG2)during the pathological process of DN.Methods:BTG2 expression in kidney tissues of diabetic mice and high glucose(HG)-exposed human proximal tubular cell line HK-2 was assessed with Western blot and RT-qPCR.The diabetic mice model was constructed by streptozotocin injection and confirmed by the blood glucose level beyond 16.7 mmol/L.Hematoxylin and eosin(H&E)staining and measurement of kidney function hallmarks were conducted to assess kidney injury.Cell counting kit(CCK)-8 method and TUNEL assay appraised cell activity and apoptosis.Oil red O staining assayed lipid accumulation.Relevant commercial kits were used to estimate oxidative stress-related factors.Co-immunoprecipitation(Co-IP)assay testified the binding relationship of BTG2 with protein arginine methyltransferase 1(PRMT1).Results:BTG2 expression was significantly raised in renal tissues of diabetic mice and HK-2 cells exposed to HG.BTG2 deficiency improved viability and extenuated the apoptosis,lipid deposition as well as oxidative stress in HK-2 cells following HG exposure.In addition,PRMT1 was also overexpressed in HK-2 cells exposed to HG.BTG2 interacted with PRMT1 and positively modulated PRMT1 expression.The effects of BTG2 interference on viability,apoptosis,lipid deposition,and oxidative stress in HG-challenged HK-2 cells were partially abrogated by PRMT1 overexpression.Conclusion:Altogether,BTG2 might aggravate HK-2 cell injury in response to HG by binding with PRMT1,providing a novel target for the therapeutic strategy of DN. 展开更多
关键词 BTG2 Diabetic nephropathy Lipid deposition Oxidative stress PRMT1
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