PMID- 33993842 OWN - NLM STAT- MEDLINE DCOM- 20211111 LR - 20220423 IS - 1525-6049 (Electronic) IS - 0886-022X (Print) IS - 0886-022X (Linking) VI - 43 IP - 1 DP - 2021 Dec TI - Blocking core fucosylation of epidermal growth factor (EGF) receptor prevents peritoneal fibrosis progression. PG - 869-877 LID - 10.1080/0886022X.2021.1918557 [doi] AB - OBJECTIVE: Peritoneal fibrosis (PF) ultimately causes ultrafiltration failure and peritoneal dialysis (PD) termination, but there are few effective therapies for it. Core fucosylation, which is catalyzed by alpha1,6-fucosyltransferase (Fut8) in mammals, may play a crucial role in PF development. This study aims to assess the effects of inhibiting core fucosylation of epidermal growth factor (EGF) receptor on PF rats. METHODS: PF rats (established by 4.25% glucose dialysate) were treated with either an adenovirus-Fut8 short hairpin RNA (Fut8shRNA) or adenovirus-control. Masson's staining and net ultrafiltration were performed at week six. Fut8 level and core fucosylation of EGF receptor and collagen I in the peritoneal membrane were assessed, and EGF signaling was detected, including signal transducer and activator of transcription 3 (STAT3), nuclear factor kappa B (NF-kappaB) and their phosphorylation. Monocyte chemoattractant protein-1 (MCP-1) in peritoneal effluent was examined. RESULTS: Fut8 was upregulated in PF rats but decreased after Fut8shRNA treatment. EGF and EGF receptor expression was upregulated in PF rats, while core fucosylation of EGF receptor decreased after Fut8shRNA treatment. Masson's staining results showed an increase in peritoneal thickness in PF rats but a decrease after Fut8shRNA treatment. Fut8shRNA treatment increased net ultrafiltration, reduced the expression of collagen I and MCP-1 compared to PF rats. Fut8shRNA treatment suppressed phosphorylation of STAT3 and NF-kappaB in the peritoneal membrane of PF rats. CONCLUSIONS: Fut8shRNA treatment ameliorated the fibrotic changes in PF rats. A potential mechanism may be that Fut8shRNA treatment inactivated EGF signaling pathway by suppressing the phosphorylation of STAT3 and NF-kappaB. FAU - Yu, Changqing AU - Yu C AD - Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Yang, Ning AU - Yang N AD - Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Wang, Weidong AU - Wang W AD - Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Du, Xiangning AU - Du X AD - Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Tang, Qingzhu AU - Tang Q AD - Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Lin, Hongli AU - Lin H AD - Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Li, Longkai AU - Li L AUID- ORCID: 0000-0003-0607-4978 AD - Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China. LA - eng PT - Journal Article PL - England TA - Ren Fail JT - Renal failure JID - 8701128 RN - 0 (Chemokine CCL2) RN - 0 (Dialysis Solutions) RN - 0 (RNA, Small Interfering) RN - EC 2.4.1.- (Fucosyltransferases) RN - EC 2.7.10.1 (ErbB Receptors) SB - IM MH - Animals MH - Chemokine CCL2/metabolism MH - Dialysis Solutions MH - Disease Models, Animal MH - ErbB Receptors/drug effects/*metabolism MH - Fucosyltransferases/genetics/*pharmacology MH - Glycosylation/*drug effects MH - Male MH - Peritoneal Dialysis/*methods MH - Peritoneal Fibrosis/metabolism/pathology/*prevention & control MH - Peritoneum/drug effects/*metabolism/pathology MH - Phosphorylation MH - RNA, Small Interfering/genetics/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Signal Transduction/drug effects PMC - PMC8143636 OTO - NOTNLM OT - Core fucosylation OT - epidermal growth factor receptor OT - peritoneal dialysis OT - peritoneal fibrosis COIS- The authors declare that they have no conflicts of interest regarding the publication of this manuscript. EDAT- 2021/05/18 06:00 MHDA- 2021/11/12 06:00 PMCR- 2021/05/17 CRDT- 2021/05/17 05:31 PHST- 2021/05/17 05:31 [entrez] PHST- 2021/05/18 06:00 [pubmed] PHST- 2021/11/12 06:00 [medline] PHST- 2021/05/17 00:00 [pmc-release] AID - 1918557 [pii] AID - 10.1080/0886022X.2021.1918557 [doi] PST - ppublish SO - Ren Fail. 2021 Dec;43(1):869-877. doi: 10.1080/0886022X.2021.1918557.