1
|
Ge G, Guo Q, Zhou Y, Li W, Zhang W, Bai J, Wang Q, Tao H, Wang W, Wang Z, Gan M, Xu Y, Yang H, Li B, Geng D. GLI1 facilitates collagen-induced arthritis in mice by collaborative regulation of DNA methyltransferases. eLife 2023; 12:e92142. [PMID: 37929702 PMCID: PMC10627516 DOI: 10.7554/elife.92142] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/08/2023] [Indexed: 11/07/2023] Open
Abstract
Rheumatoid arthritis (RA) is characterized by joint synovitis and bone destruction, the etiology of which remains to be explored. Many types of cells are involved in the progression of RA joint inflammation, among which the overactivation of M1 macrophages and osteoclasts has been thought to be an essential cause of joint inflammation and bone destruction. Glioma-associated oncogene homolog 1 (GLI1) has been revealed to be closely linked to bone metabolism. In this study, GLI1 expression in the synovial tissue of RA patients was positively correlated with RA-related scores and was highly expressed in collagen-induced arthritis (CIA) mouse articular macrophage-like cells. The decreased expression and inhibition of nuclear transfer of GLI1 downregulated macrophage M1 polarization and osteoclast activation, the effect of which was achieved by modulation of DNA methyltransferases (DNMTs) via transcriptional regulation and protein interactions. By pharmacological inhibition of GLI1, the proportion of proinflammatory macrophages and the number of osteoclasts were significantly reduced, and the joint inflammatory response and bone destruction in CIA mice were alleviated. This study clarified the mechanism of GLI1 in macrophage phenotypic changes and activation of osteoclasts, suggesting potential applications of GLI1 inhibitors in the clinical treatment of RA.
Collapse
Affiliation(s)
- Gaoran Ge
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Qianping Guo
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
- Medical 3D Printing Center, The First Affiliated Hospital, School of Biology & Basic Medical Sciences, Suzhou Medical College, Soochow UniversitySuzhouChina
| | - Ying Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Wenming Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Wei Zhang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Jiaxiang Bai
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of ChinaAnhuiChina
| | - Qing Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Huaqiang Tao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Wei Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Zhen Wang
- Department of Orthopaedics, Suzhou Kowloon Hospital Shanghai Jiao Tong University School of MedicineSuzhouChina
| | - Minfeng Gan
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Yaozeng Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Huilin Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| | - Bin Li
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
- Medical 3D Printing Center, The First Affiliated Hospital, School of Biology & Basic Medical Sciences, Suzhou Medical College, Soochow UniversitySuzhouChina
- Collaborative Innovation Center of Hematology, Soochow UniversitySuzhouChina
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Medical College, Soochow UniversitySuzhouChina
| |
Collapse
|