PMID- 31837247 OWN - NLM STAT- MEDLINE DCOM- 20210513 LR - 20210513 IS - 1742-4658 (Electronic) IS - 1742-464X (Linking) VI - 287 IP - 14 DP - 2020 Jul TI - Forkhead box C1 promotes the pathology of osteoarthritis by upregulating beta-catenin in synovial fibroblasts. PG - 3065-3087 LID - 10.1111/febs.15178 [doi] AB - Osteoarthritis (OA) is a joint disease characterized by articular cartilage degeneration, and no effective treatment is available. The OA classification has shifted from a cartilage-only disease to a whole-joint disease, and the synovial membrane plays an important role. Therefore, studies are needed to identify additional genes that regulate the pathological changes in the synovial membrane to develop a promising therapeutic strategy for OA. Here, we validated that the expression of forkhead box protein C1 (FoxC1) and beta-catenin was upregulated in OA synovial membranes and synovial fibroblasts (SFs). Gain- and loss-of-function studies revealed that FoxC1 overexpression promoted, whilst silencing inhibited OA synovial fibroblast (OASF) proliferation and pro-inflammatory cytokine [interleukin 6 (IL-6), interleukin 8 (IL-8) and tumour necrosis factor-alpha (TNF-alpha)] production. FoxC1 overexpression increased beta-catenin mRNA, total and nuclear protein expression in OASFs and upregulated a disintegrin and metalloproteinase with thrombospondin motif 5 (ADAMTS-5), fibronectin, matrix metalloproteinase 3 (MMP3) and matrix metalloproteinase 13 (MMP13) mRNA and total protein expression in OASFs. Conversely, FoxC1 knockdown reduced beta-catenin mRNA, total and nuclear protein expression in OASFs and reduced ADAMTS-5, fibronectin, MMP3 and MMP13 mRNA and total protein expression in OASFs. beta-catenin mediates FoxC1-induced pathological changes (proliferation, catabolic regulation and inflammation) in OASFs. MicroRNA-200a-3p (miR-200a-3p) binds to the 3'-UTR of FoxC1 and mediates FoxC1 expression. Intra-articular FoxC1-specific siRNA transfection hindered OA development in mice. Therefore, our results demonstrate the key role FoxC1 plays in vivo and in vitro in OA synovial pathology, possibly identifying a potential novel therapeutic target for OA. CI - (c) 2019 Federation of European Biochemical Societies. FAU - Wang, Jun AU - Wang J AD - Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, China. FAU - Wang, Yin AU - Wang Y AD - Department of Plastic Surgery, The Fourth Affiliated Hospital of Anhui Medical University, China. FAU - Zhang, Hui AU - Zhang H AD - Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, China. FAU - Gao, Weilu AU - Gao W AD - Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, China. FAU - Lu, Ming AU - Lu M AD - Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, China. FAU - Liu, Wendong AU - Liu W AD - Department of Radiology, The First Affiliated Hospital of Anhui Medical University, China. FAU - Li, Yetian AU - Li Y AD - Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, China. FAU - Yin, Zongsheng AU - Yin Z AUID- ORCID: 0000-0002-1931-913X AD - Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191229 PL - England TA - FEBS J JT - The FEBS journal JID - 101229646 RN - 0 (CTNNB1 protein, human) RN - 0 (FOXC1 protein, human) RN - 0 (Forkhead Transcription Factors) RN - 0 (MIRN200 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (beta Catenin) SB - IM MH - Adult MH - Aged MH - Animals MH - Female MH - Fibroblasts/metabolism/*pathology MH - Forkhead Transcription Factors/genetics/*metabolism MH - *Gene Expression Regulation MH - Humans MH - Male MH - Mice MH - Mice, Inbred C57BL MH - MicroRNAs/genetics MH - Osteoarthritis/genetics/metabolism/*pathology MH - Synovial Membrane/metabolism/*pathology MH - Up-Regulation MH - Young Adult MH - beta Catenin/genetics/*metabolism OTO - NOTNLM OT - FoxC1 OT - Osteoarthritis OT - miR-200a-3p OT - beta-catenin EDAT- 2019/12/15 06:00 MHDA- 2021/05/14 06:00 CRDT- 2019/12/15 06:00 PHST- 2019/09/23 00:00 [received] PHST- 2019/11/17 00:00 [revised] PHST- 2019/12/12 00:00 [accepted] PHST- 2019/12/15 06:00 [pubmed] PHST- 2021/05/14 06:00 [medline] PHST- 2019/12/15 06:00 [entrez] AID - 10.1111/febs.15178 [doi] PST - ppublish SO - FEBS J. 2020 Jul;287(14):3065-3087. doi: 10.1111/febs.15178. Epub 2019 Dec 29.