Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney disease

Renal ischemia-reperfusion (IR) induces tissue hypoxia, resulting in disrupted energy metabolism and heightened oxidative stress. These factors contribute to tubular cell damage, which is a leading cause of acute kidney injury (AKI) and can progress to chronic kidney disease (CKD). The excessive gen...

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Main Authors: Xian Liu, Qin Yu, Hai-Bo Mao, Jing-Bo Hu, Wei-Hua Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Bioengineering and Biotechnology
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Online Access:https://www.frontiersin.org/articles/10.3389/fbioe.2024.1506909/full
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author Xian Liu
Qin Yu
Hai-Bo Mao
Jing-Bo Hu
Wei-Hua Liu
author_facet Xian Liu
Qin Yu
Hai-Bo Mao
Jing-Bo Hu
Wei-Hua Liu
author_sort Xian Liu
collection DOAJ
description Renal ischemia-reperfusion (IR) induces tissue hypoxia, resulting in disrupted energy metabolism and heightened oxidative stress. These factors contribute to tubular cell damage, which is a leading cause of acute kidney injury (AKI) and can progress to chronic kidney disease (CKD). The excessive generation of reactive oxygen species (ROS) plays a crucial role in the pathogenesis of AKI. This study presents the synthesis of curcumin ultra-small coordination polymer (Ru/Cur) nanodots and their application in scavenging ROS in renal tissues. By adding ruthenium ions to a methanol solution containing the natural product curcumin, ultra-small Ru/Cur nanodots were successfully synthesized. To enhance the dispersibility of these nanoparticles in water, polyvinylpyrrolidone (PVP) was used as a growth aid, resulting in highly stable nanodots with sizes smaller than 10 nm. The results indicated that Ru/Cur nanodots effectively eliminated various ROS and demonstrated significant therapeutic effects and biocompatibility in IR-AKI mice, reducing markers of kidney function damage, alleviating renal oxidative stress, and decreasing inflammatory cell infiltration. Ru/Cur nanodots inhibited renal fibrosis by suppressing epithelial-mesenchymal transition and the secretion of transforming growth factor-β1 in the model of IR-AKI to chronic kidney disease (CKD). In summary, our findings confirm that Ru/Cur nanodots mitigate the pathological conditions associated with both AKI and its progression to CKD by reducing IR-induced tubular cell injury.
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spelling doaj-art-64a6edf8482248c0b09fa82736a7aaf12025-01-14T06:10:45ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852025-01-011210.3389/fbioe.2024.15069091506909Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney diseaseXian Liu0Qin Yu1Hai-Bo Mao2Jing-Bo Hu3Wei-Hua Liu4Department of Urology, Beilun People’s Hospital, Ningbo, Zhejiang, ChinaDepartment of Urology, Beilun People’s Hospital, Ningbo, Zhejiang, ChinaFaculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, ChinaFaculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, ChinaDepartment of Urology, Beilun People’s Hospital, Ningbo, Zhejiang, ChinaRenal ischemia-reperfusion (IR) induces tissue hypoxia, resulting in disrupted energy metabolism and heightened oxidative stress. These factors contribute to tubular cell damage, which is a leading cause of acute kidney injury (AKI) and can progress to chronic kidney disease (CKD). The excessive generation of reactive oxygen species (ROS) plays a crucial role in the pathogenesis of AKI. This study presents the synthesis of curcumin ultra-small coordination polymer (Ru/Cur) nanodots and their application in scavenging ROS in renal tissues. By adding ruthenium ions to a methanol solution containing the natural product curcumin, ultra-small Ru/Cur nanodots were successfully synthesized. To enhance the dispersibility of these nanoparticles in water, polyvinylpyrrolidone (PVP) was used as a growth aid, resulting in highly stable nanodots with sizes smaller than 10 nm. The results indicated that Ru/Cur nanodots effectively eliminated various ROS and demonstrated significant therapeutic effects and biocompatibility in IR-AKI mice, reducing markers of kidney function damage, alleviating renal oxidative stress, and decreasing inflammatory cell infiltration. Ru/Cur nanodots inhibited renal fibrosis by suppressing epithelial-mesenchymal transition and the secretion of transforming growth factor-β1 in the model of IR-AKI to chronic kidney disease (CKD). In summary, our findings confirm that Ru/Cur nanodots mitigate the pathological conditions associated with both AKI and its progression to CKD by reducing IR-induced tubular cell injury.https://www.frontiersin.org/articles/10.3389/fbioe.2024.1506909/fullacute kidney injurychronic kidney diseaseischemia-reperfusioncurcuminruthenium
spellingShingle Xian Liu
Qin Yu
Hai-Bo Mao
Jing-Bo Hu
Wei-Hua Liu
Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney disease
Frontiers in Bioengineering and Biotechnology
acute kidney injury
chronic kidney disease
ischemia-reperfusion
curcumin
ruthenium
title Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney disease
title_full Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney disease
title_fullStr Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney disease
title_full_unstemmed Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney disease
title_short Ultra-small curcumin-ruthenium coordination polymer nanodots prevent renal ischemia-reperfusion injury and the progression to chronic kidney disease
title_sort ultra small curcumin ruthenium coordination polymer nanodots prevent renal ischemia reperfusion injury and the progression to chronic kidney disease
topic acute kidney injury
chronic kidney disease
ischemia-reperfusion
curcumin
ruthenium
url https://www.frontiersin.org/articles/10.3389/fbioe.2024.1506909/full
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