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Li Z, Hao J, Li L, Shen N, Wang D, Wang N, Wen X, Wang W, Qin B, Tang Q, Guo X, Song H, Du X, Yang F, Lin H. Loss of FUT8 in renal tubules ameliorates ischemia-reperfusion injury-induced renal interstitial inflammation transition to fibrosis via the TLR3-NF-κB pathway. FASEB J 2023; 37:e23091. [PMID: 37432656 DOI: 10.1096/fj.202300623r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/12/2023] [Accepted: 06/29/2023] [Indexed: 07/12/2023]
Abstract
Renal ischemia-reperfusion injury (IRI) is a common reason of acute kidney injury (AKI). AKI can progress to chronic kidney disease (CKD) in some survivors. Inflammation is considered the first-line response to early-stage IRI. We previously reported that core fucosylation (CF), specifically catalyzed by α-1,6 fucosyltransferase (FUT8), exacerbates renal fibrosis. However, the FUT8 characteristics, role, and mechanism in inflammation and fibrosis transition remain unclear. Considering renal tubular cells are the trigger cells that initiate the fibrosis in the AKI-to-CKD transition in IRI, we targeted CF by generating a renal tubular epithelial cell (TEC)-specific FUT8 knockout mouse and measured FUT8-driven and downstream signaling pathway expression and AKI-to-CKD transition. During the IRI extension phase, specific FUT8 deletion in the TECs ameliorated the IRI-induced renal interstitial inflammation and fibrosis mainly via the TLR3 CF-NF-κB signaling pathway. The results firstly indicated the role of FUT8 in the transition of inflammation and fibrosis. Therefore, the loss of FUT8 in TECs may be a novel potential strategy for treating AKI-CKD transition.
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Affiliation(s)
- Zhitong Li
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jiaojiao Hao
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Longkai Li
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Nan Shen
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Dapeng Wang
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Nan Wang
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xinyu Wen
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Weidong Wang
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Biaojie Qin
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qingzhu Tang
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xianan Guo
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Huiyi Song
- Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiangning Du
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Fan Yang
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hongli Lin
- Department of Nephrology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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