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Yoon K, Kim JY, Kim SJ, Huh JK, Kim JW, Choi J. Multi-class segmentation of temporomandibular joint using ensemble deep learning. Sci Rep 2024; 14:18990. [PMID: 39160234 PMCID: PMC11333466 DOI: 10.1038/s41598-024-69814-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 08/08/2024] [Indexed: 08/21/2024] Open
Abstract
Temporomandibular joint disorders are prevalent causes of orofacial discomfort. Diagnosis predominantly relies on assessing the configuration and positions of temporomandibular joint components in magnetic resonance images. The complex anatomy of the temporomandibular joint, coupled with the variability in magnetic resonance image quality, often hinders an accurate diagnosis. To surmount this challenge, we developed deep learning models tailored to the automatic segmentation of temporomandibular joint components, including the temporal bone, disc, and condyle. These models underwent rigorous training and validation utilizing a dataset of 3693 magnetic resonance images from 542 patients. Upon evaluation, our ensemble model, which combines five individual models, yielded average Dice similarity coefficients of 0.867, 0.733, 0.904, and 0.952 for the temporal bone, disc, condyle, and background class during internal testing. In the external validation, the average Dice similarity coefficients values for the temporal bone, disc, condyle, and background were 0.720, 0.604, 0.800, and 0.869, respectively. When applied in a clinical setting, these artificial intelligence-augmented tools enhanced the diagnostic accuracy of physicians, especially when discerning between temporomandibular joint anterior disc displacement and osteoarthritis. In essence, automated temporomandibular joint segmentation by our deep learning approach, stands as a promising aid in refining temporomandibular joint disorders diagnosis and treatment strategies.
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Affiliation(s)
- Kyubaek Yoon
- Department of Artificial Intelligence and Software, Ewha Womans University, Seoul, South Korea
| | - Jae-Young Kim
- Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Sun-Jong Kim
- Department of Oral and Maxillofacial Surgery, School of Medicine, College of Medicine, Ewha Womans University, Anyangcheon-Ro 1071, Yangcheon-Gu, Seoul, 158-710, South Korea
| | - Jong-Ki Huh
- Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Jin-Woo Kim
- Department of Oral and Maxillofacial Surgery, School of Medicine, College of Medicine, Ewha Womans University, Anyangcheon-Ro 1071, Yangcheon-Gu, Seoul, 158-710, South Korea.
| | - Jongeun Choi
- Department of Mobility Systems Engineering, School of Mechanical Engineering, Yonsei University, 50 Yonsei Ro, Seodaemun Gu, Seoul, 03722, South Korea.
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Xue X, Li C, Chen S, Zheng Y, Zhang F, Xu Y. 17β-estradiol promotes the progression of temporomandibular joint osteoarthritis by regulating the FTO/IGF2BP1/m6A-NLRC5 axis. Immun Inflamm Dis 2024; 12:e1361. [PMID: 39092772 PMCID: PMC11295093 DOI: 10.1002/iid3.1361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/16/2024] [Accepted: 07/21/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND Temporomandibular joint osteoarthritis (TMJOA) is a degenerative cartilage disease. 17β-estradiol (E2) aggravates the pathological process of TMJOA; however, the mechanisms of its action have not been elucidated. Thus, we investigate the influence of E2 on the cellular biological behaviors of synoviocytes and the molecular mechanisms. METHODS Primary fibroblast-like synoviocytes (FLSs) isolated from rats were treated with TNF-α to establish cell model, and phenotypes were evaluated using cell counting kit-8, EdU, Tanswell, enzyme-linked immunosorbent assay, and quantitative real-time PCR (qPCR). The underlying mechanism of E2, FTO-mediated NLRC5 m6A methylation, was assessed using microarray, methylated RNA immunoprecipitation, qPCR, and western blot. Moreover, TMJOA-like rat model was established by intra-articular injection of monosodium iodoacetate (MIA), and bone morphology and pathology were assessed using micro-CT and H&E staining. RESULTS The results illustrated that E2 facilitated the proliferation, migration, invasion, and inflammation of TNF-α-treated FLSs. FTO expression was downregulated in TMJOA and was reduced by E2 in FLSs. Knockdown of FTO promoted m6A methylation of NLRC5 and enhanced NLRC5 stability by IGF2BP1 recognition. Moreover, E2 promoted TMJ pathology and condyle remodeling, and increased bone mineral density and trabecular bone volume fraction, which was rescued by NLRC5 knockdown. CONCLUSION E2 promoted the progression of TMJOA.
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Affiliation(s)
- Xintong Xue
- Department of Orthodontics, Shanghai Stomatological Hospital & School of StomatologyFudan UniversityShanghaiChina
- Shanghai Key Laboratory of Craniomaxillofacial Development and DiseasesFudan UniversityShanghaiChina
| | - Changyi Li
- Shanghai Key Laboratory of Craniomaxillofacial Development and DiseasesFudan UniversityShanghaiChina
- Department of Endodontics, Shanghai Stomatological Hospital & School of StomatologyFudan UniversityShanghaiChina
| | - Shuang Chen
- Shanghai Key Laboratory of Craniomaxillofacial Development and DiseasesFudan UniversityShanghaiChina
- Department of Prosthodontics, Shanghai Stomatological Hospital & School of StomatologyFudan UniversityShanghaiChina
| | - Yan Zheng
- Shanghai Key Laboratory of Craniomaxillofacial Development and DiseasesFudan UniversityShanghaiChina
- Department of Implantology, Shanghai Stomatological Hospital & School of StomatologyFudan UniversityShanghaiChina
| | - Fan Zhang
- Department of Orthodontics, Shanghai Stomatological Hospital & School of StomatologyFudan UniversityShanghaiChina
- Shanghai Key Laboratory of Craniomaxillofacial Development and DiseasesFudan UniversityShanghaiChina
| | - Yan Xu
- Department of Orthodontics, Shanghai Stomatological Hospital & School of StomatologyFudan UniversityShanghaiChina
- Shanghai Key Laboratory of Craniomaxillofacial Development and DiseasesFudan UniversityShanghaiChina
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Cao X, Wang Z, Jiao Y, Diao W, Geng Q, Zhao L, Wang Z, Wang X, Zhang M, Xu J, Wang B, Deng T, Xiao C. Dihydroartemisinin alleviates erosive bone destruction by modifying local Treg cells in inflamed joints: A novel role in the treatment of rheumatoid arthritis. Int Immunopharmacol 2024; 130:111795. [PMID: 38447418 DOI: 10.1016/j.intimp.2024.111795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/15/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
Treg cell-based therapy has exhibited promising efficacy in combatting rheumatoid arthritis (RA). Dihydroartemisinin (DHA) exerts broad immunomodulatory effects across various diseases, with its recent spotlight on T-cell regulation in autoimmune conditions. The modulation of DHA on Treg cells and its therapeutic role in RA has yet to be fully elucidated. This study seeks to unveil the influence of DHA on Treg cells in RA and furnish innovative substantiation for the potential of DHA to ameliorate RA. To this end, we initially scrutinized the impact of DHA-modulated Treg cells on osteoclast (OC) formation in vitro using Treg cell-bone marrow-derived monocyte (BMM) coculture systems. Subsequently, employing the collagen-induced arthritis (CIA) rat model, we validated the efficacy of DHA and probed its influence on Treg cells in the spleen and popliteal lymph nodes (PLN). Finally, leveraging deep proteomic analysis with data-independent acquisition (DIA) and parallel accumulation-serial fragmentation (PASEF) technology, we found the alterations in the Treg cell proteome in PLN by proteomic analysis. Our findings indicate that DHA augmented suppressive Treg cells, thereby impeding OC formation in vitro. Consistently, DHA mitigated erosive joint destruction and osteoclastogenesis by replenishing splenic and joint-draining lymph node Treg cells in CIA rats. Notably, DHA induced alterations in the Treg cell proteome in PLN, manifesting distinct upregulation of alloantigen Col2a1 (Type II collagen alfa 1 chain) and CD8a (T-cell surface glycoprotein CD8 alpha chain) in Treg cells, signifying DHA's targeted modulation of Treg cells, rendering them more adept at sustaining immune tolerance and impeding bone erosion. These results unveil a novel facet of DHA in the treatment of RA.
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Affiliation(s)
- Xiaoxue Cao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China.
| | - Zhaoran Wang
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China.
| | - Yi Jiao
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China.
| | - Wenya Diao
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China.
| | - Qishun Geng
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China.
| | - Lu Zhao
- China-Japan Friendship Hospital, Capital Medical University, Beijing, China.
| | - Zihan Wang
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China.
| | - Xing Wang
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China.
| | - Mengxiao Zhang
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China.
| | - Jiahe Xu
- China-Japan Friendship School of Clinical Medicine, Peking University, Beijing, China.
| | - Bailiang Wang
- Department of Orthopaedic Surgery, China-Japan Friendship Hospital, Beijing, China.
| | - Tingting Deng
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China.
| | - Cheng Xiao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China; Department of Emergency, China-Japan Friendship Hospital, Beijing, China.
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Li X, He A, Liu Y, Huang Y, Zhang X. Bioinformatics identification of ferroptosis-related genes and therapeutic drugs in rheumatoid arthritis. Front Med (Lausanne) 2023; 10:1192153. [PMID: 37521346 PMCID: PMC10374025 DOI: 10.3389/fmed.2023.1192153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/19/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction Rheumatoid arthritis (RA) is a chronic immune disease characterized by synovial inflammation and bone destruction, with a largely unclear etiology. Evidence has indicated that ferroptosis may play an increasingly important role in the onset and development of RA. However, ferroptosis-related genes are still largely unexplored in RA. Therefore, this work focused on identifying and validating the potential ferroptosis-related genes involved in RA through bioinformatics analysis. Methods We screened differentially expressed ferroptosis-related genes (DEFGs) between RA patients and healthy individuals based on GSE55235 dataset. Subsequently, correlation analysis, protein-protein interaction (PPI) network analysis, GO, and KEGG enrichment analyses were performed using these DEFGs. Finally, our results were validated by GSE12021 dataset. Results We discovered 34 potential DEFGs in RA based on bioinformatics analysis. According to functional enrichment analysis, these genes were mainly enriched in HIF-1 signaling pathway, FoxO signaling pathway, and Ferroptosis pathway. Four genes (GABARPL1, DUSP1, JUN, and MAPK8) were validated to be downregulated by GSE12021 dataset and were diagnostic biomarkers and therapeutic targets for RA via the regulation of ferroptosis. Discussion Our results help shed more light on the pathogenesis of RA. Ferroptosis-related genes in RA are valuable diagnostic biomarkers and they will be exploited clinically as therapeutic targets in the future.
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Affiliation(s)
- Xianbin Li
- Institute of Computational Science and Technology, Guangzhou University, Guangzhou, Guangdong, China
- School of Computer Science of Information Technology, Qiannan Normal University for Nationalities, Duyun, Guizhou, China
| | - Andong He
- Department of Respiratory and Critical Medicine, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Yue Liu
- Institute of Computational Science and Technology, Guangzhou University, Guangzhou, Guangdong, China
| | - Yuye Huang
- Department of Respiratory and Critical Medicine, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Xueli Zhang
- Department of Medical Technology, Zhengzhou Railway Vocational and Technical College, Zhengzhou, Henan, China
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Wang D, Qi Y, Wang Z, Guo A, Xu Y, Zhang Y. Recent Advances in Animal Models, Diagnosis, and Treatment of Temporomandibular Joint Osteoarthritis. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:62-77. [PMID: 35994388 DOI: 10.1089/ten.teb.2022.0065] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Temporomandibular joint osteoarthritis (TMJOA) is a gradual degenerative jaw joint condition. Until recent years, TMJOA is still relatively unrecognized and ineffective to be treated. Appropriate animal models with reliable detection methods can help researchers understand the pathophysiology of TMJOA and find therapeutic options. In this study, we summarized common animal models of TMJOA created by chemical, surgical, mechanical, and genetical approaches. The relevant pathological symptoms and induction mechanisms were outlined. In addition, different pathological indicators, furthermore, emerging therapeutic regimens, such as intra-articular drug delivery and tissue engineering-based approaches to treat TMJOA based on these animal models, were summarized and updated. Understanding the physiology and pathogenesis of the TMJOA, together using various ways to diagnose the TMJOA, were elaborated, including imaging techniques, molecular techniques for detecting inflammatory cytokines, histochemical staining, and histomorphometry measures. A more reliable diagnosis will enable the development of new prevention and more effective treatment strategies and thereby improve the quality of life of TMJOA patients. Impact statement Temporomandibular joint osteoarthritis (TMJOA) affects 8 to 16 percent of the population worldwide. However, TMJOA is still relatively unrecognized and ineffective to be treated in the clinic. Appropriate animal models with reliable diagnostic methods can help researchers understand the pathophysiology of TMJOA and find therapeutic options. We herein summarized common animal models of TMJOA and various ways to diagnose the TMJOA. More importantly, emerging therapeutic regimens to treat TMJOA based on these animal models were summarized. With the aid of strategies listed, more effective treatment strategies will be developed and thereby improve the life quality of TMJOA patients.
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Affiliation(s)
- Dongyun Wang
- Stomatological Center of Peking University Shenzhen Hospital, Guangdong Provincial High-level Clinical Key Specialty, Guangdong Province Engineering Research Center of Oral Disease Diagnosis and Treatment, Shenzhen, China
| | - Yajie Qi
- Stomatological Center of Peking University Shenzhen Hospital, Guangdong Provincial High-level Clinical Key Specialty, Guangdong Province Engineering Research Center of Oral Disease Diagnosis and Treatment, Shenzhen, China.,Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, China
| | - Zhubing Wang
- School of Dentistry, Health Science Center, Shenzhen University, Shenzhen, China
| | - Anyun Guo
- Department of Joint Surgery, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Yingxin Xu
- Stomatological Center of Peking University Shenzhen Hospital, Guangdong Provincial High-level Clinical Key Specialty, Guangdong Province Engineering Research Center of Oral Disease Diagnosis and Treatment, Shenzhen, China
| | - Yang Zhang
- School of Dentistry, Health Science Center, Shenzhen University, Shenzhen, China
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de Sousa LM, de Figueiredo Costa AC, Pereira AF, da Silva Martins C, de Oliveira Filho OV, Goes P, Vale ML, Gondim DV. Temporomandibular joint arthritis increases canonical Wnt pathway expression in the articular cartilage and trigeminal ganglion in rats. Bone Rep 2023; 18:101649. [PMID: 36700243 PMCID: PMC9869417 DOI: 10.1016/j.bonr.2022.101649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/27/2022] [Accepted: 12/16/2022] [Indexed: 01/18/2023] Open
Abstract
The canonical Wnt pathway participates in inflammatory diseases and it is involved in neuropathic pain. This study evaluated the immunoexpression of the canonical Wnt signaling pathway in the articular cartilage of the temporomandibular joint (TMJ) and along the nociceptive trigeminal pathway in arthritic rats. For this, male Wistar rats were divided into Control (C) and Arthritic (RA) groups. Arthritis induction was performed through subcutaneous injection of methylated bovine serum albumin (mBSA) and complete Freund Adjuvant (CFA)/ Incomplete Freund Adjuvant (IFA) on the first 14 days (once a week), followed by 3 weekly intra-articular injections of mBSA (10 μl/joint; left TMJ). The following parameters were evaluated: nociceptive threshold, inflammatory infiltrate, type I and III collagen birefringence, immunohistochemistry for IL-1β, TNF-α, IL-6, Wnt10b, β-catenin, cyclin-D1 in articular cartilage, c-Myc in synovial membrane, and immunofluorescence analysis for c-Fos, Wnt-10b and β-catenin in the trigeminal ganglion and the trigeminal subnucleus caudalis. The RA group showed intense articular cartilage damage with proliferation of type III collagen, increased immunoexpression of proinflammatory cytokines and Wnt-10b, β-catenin and cyclin-D1 in the articular cartilage and c-Myc in the synovial membrane. In the RA group, a reduction in the nociceptive threshold was observed, followed by a significant increase in the expression of Wnt-10b in neurons and β-catenin in satellite cells of the trigeminal ganglion. c-Fos immunoexpression was observed in neurons, peripherally and centrally, in arthritic rats. Our data demonstrated that TMJ arthritis in rats causes articular cartilage damage and nociceptive behavior, with increased immunoexpression of canonical Wnt pathway in the articular cartilage and trigeminal ganglion.
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Affiliation(s)
- Luane Macêdo de Sousa
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
| | | | - Anamaria Falcão Pereira
- Postgraduate Program in Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - Conceição da Silva Martins
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
| | | | - Paula Goes
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
| | - Mariana Lima Vale
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
- Postgraduate Program in Pharmacology, Faculty of Medicine, Federal University of Ceará, Brazil
| | - Delane Viana Gondim
- Postgraduate Program in Morphofunctional Sciences, Faculty of Medicine, Federal University of Ceará, Brazil
- Postgraduate Program in Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Brazil
- Corresponding author at: Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias, S/N, Rodolfo Teófilo, CEP: 60430-170 Fortaleza, CE, Brazil.
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He X, Yin J, Yu M, Qiu J, Wang A, Wang H, He X, Wu X. Identification and validation of potential hub genes in rheumatoid arthritis by bioinformatics analysis. Am J Transl Res 2022; 14:6751-6762. [PMID: 36247278 PMCID: PMC9556438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/19/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is considered to be a chronic immune disease pathologically characterized by synovial inflammation and bone destruction. At present, the potential pathogenesis of RA is still unclear. Hub genes are recognized to play a pivotal role in the occurrence and progression of RA. METHODS Firstly, we attempted to screen hub genes that are associated with RA, to clarify the underlying pathological mechanisms of RA, and to offer potential treatment methods for RA. We acquired these datasets (GSE12021, GSE55235, and GSE55457) of RA patients and healthy samples from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were recognized via R software. Then, Gene ontology (GO) functional analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were utilized to deeply explore the underlying biological functions and pathways closely associated with RA. In addition, a protein-protein interaction (PPI) network was built to further evaluate and screen for hub genes. Finally, on the basis of the results of PPI analysis, we confirmed the mRNA expression levels of five hub genes in the synovial tissue of rats modeled with RA. RESULTS In the human microarray datasets, LCK, JAK2, SOCS3, STAT1, and EGFR were identified as hub genes associated with RA by bioinformatics analysis. Furthermore, we verified the differential expression levels of hub genes in rat synovial tissues via qRT-PCR (P < 0.05). CONCLUSIONS Our findings suggest that the hub genes LCK, JAK2, SOCS3, STAT1, and EGFR might have vital roles in the progression of RA and may offer novel therapeutic treatments for RA.
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Affiliation(s)
- Xinling He
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
| | - Ji Yin
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
| | - Mingfang Yu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
- The Traditional Chinese Medicine Hospital of LuzhouLuzhou, Sichuan, China
| | - Jiao Qiu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
| | - Aiyang Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
| | - Haoyu Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
| | - Xueyi He
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
| | - Xiao Wu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhou, Sichuan, China
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Kindlin-2 loss in condylar chondrocytes causes spontaneous osteoarthritic lesions in the temporomandibular joint in mice. Int J Oral Sci 2022; 14:33. [PMID: 35788130 PMCID: PMC9253313 DOI: 10.1038/s41368-022-00185-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 05/25/2022] [Accepted: 05/28/2022] [Indexed: 11/16/2022] Open
Abstract
The progressive destruction of condylar cartilage is a hallmark of the temporomandibular joint (TMJ) osteoarthritis (OA); however, its mechanism is incompletely understood. Here, we show that Kindlin-2, a key focal adhesion protein, is strongly detected in cells of mandibular condylar cartilage in mice. We find that genetic ablation of Kindlin-2 in aggrecan-expressing condylar chondrocytes induces multiple spontaneous osteoarthritic lesions, including progressive cartilage loss and deformation, surface fissures, and ectopic cartilage and bone formation in TMJ. Kindlin-2 loss significantly downregulates the expression of aggrecan, Col2a1 and Proteoglycan 4 (Prg4), all anabolic extracellular matrix proteins, and promotes catabolic metabolism in TMJ cartilage by inducing expression of Runx2 and Mmp13 in condylar chondrocytes. Kindlin-2 loss decreases TMJ chondrocyte proliferation in condylar cartilages. Furthermore, Kindlin-2 loss promotes the release of cytochrome c as well as caspase 3 activation, and accelerates chondrocyte apoptosis in vitro and TMJ. Collectively, these findings reveal a crucial role of Kindlin-2 in condylar chondrocytes to maintain TMJ homeostasis.
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Nagai K, Ishii T, Ohno T, Nishii Y. Overload of the Temporomandibular Joints Accumulates γδ T Cells in a Mouse Model of Rheumatoid Arthritis: A Morphological and Histological Evaluation. Front Immunol 2022; 12:753754. [PMID: 35069529 PMCID: PMC8771909 DOI: 10.3389/fimmu.2021.753754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/08/2021] [Indexed: 11/13/2022] Open
Abstract
Recently, it has been reported that γδ T cells are associated with the pathology of rheumatoid arthritis (RA). However, there are many uncertainties about their relationship. In this study, we investigated the morphological and histological properties of peripheral as well as temporomandibular joints (TMJ) in a mouse model of rheumatoid arthritis with and without exposure to mechanical strain on the TMJ. Collagen antibody-induced arthritis (CAIA) was induced by administering collagen type II antibody and lipopolysaccharide to male DBA/1JNCrlj mice at 9-12 weeks of age, and mechanical stress (MS) was applied to the mandibular condyle. After 14 days, 3D morphological evaluation by micro-CT, histological staining (Hematoxylin Eosin, Safranin O, and Tartrate-Resistant Acid Phosphatase staining), and immunohistochemical staining (ADAMTS-5 antibody, CD3 antibody, CD45 antibody, RORγt antibody, γδ T cell receptor antibody) were performed. The lower jawbone was collected. The mandibular condyle showed a rough change in the surface of the mandibular condyle based on three-dimensional analysis by micro-CT imaging. Histological examination revealed bone and cartilage destruction, such as a decrease in chondrocyte layer width and an increase in the number of osteoclasts in the mandibular condyle. Then, immune-histological staining revealed accumulation of T and γδ T cells in the subchondral bone. The temporomandibular joint is less sensitive to the onset of RA, but it has been suggested that it is exacerbated by mechanical stimulation. Additionally, the involvement of γδ T cells was suggested as the etiology of rheumatoid arthritis.
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Affiliation(s)
- Kohei Nagai
- Department of Orthodontics, Tokyo Dental College, Tokyo, Japan
| | - Takenobu Ishii
- Department of Orthodontics, Tokyo Dental College, Tokyo, Japan
| | - Tatsukuni Ohno
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
- Tokyo Dental College Research Branding Project, Tokyo Dental College, Tokyo, Japan
| | - Yasushi Nishii
- Department of Orthodontics, Tokyo Dental College, Tokyo, Japan
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Rahimizadeh P, Rezaieyazdi Z, Behzadi F, Hajizade A, Lim SI. Nanotechnology as a promising platform for rheumatoid arthritis management: Diagnosis, treatment, and treatment monitoring. Int J Pharm 2021; 609:121137. [PMID: 34592396 DOI: 10.1016/j.ijpharm.2021.121137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/16/2021] [Accepted: 09/23/2021] [Indexed: 12/18/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease that develops in about 5 per 1000 people. Over the past years, substantial progresses in knowledge of the disease's pathophysiology, effective diagnosis methods, early detection, and efficient treatment strategies have been made. Notably, nanotechnology has emerged as a game-changer in the efficacious management of many diseases, especially for RA. Joint replacement, photothermal therapy (PTT), photodynamic therapy (PDT), RA diagnosis, and treatment monitoring are nano-based avenues in RA management. Here, we present a brief overview of the pathogenesis of RA, risk factors, conventional diagnostic methods and treatment approaches, and then discuss the role of nanomedicine in RA diagnosis, treatment, and treatment monitoring with an emphasis on functional characteristics distinctive from other RA therapeutics.
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Affiliation(s)
- Parastou Rahimizadeh
- Department of Chemical Engineering, Pukyong National University, Busan 48513, South Korea
| | - Zahra Rezaieyazdi
- Rheumatic Disease Research Center, Mashhad University of Medical Science, Mashhad, Iran
| | - Faezeh Behzadi
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Abbas Hajizade
- Biology Research Centre, Faculty of Basic Sciences, Imam Hossein University, Tehran, Iran.
| | - Sung In Lim
- Department of Chemical Engineering, Pukyong National University, Busan 48513, South Korea.
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