Biomechanism of abnormal stress on promoting osteoarthritis of temporomandibular joint through Piezo1 ion channel.

Autor: Li MJ; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.; Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, China., Li CX; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.; Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, China.; Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, School of Stomatology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China., Li JY; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China., Gong ZC; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.; Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, China., Shao B; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.; Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, China., Zhou YC; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.; Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, China., Xu YJ; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.; Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, China., Jia MY; Department of Oral and Maxillofacial Oncology and Surgery, School/Hospital of Stomatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.; Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, China.
Jazyk: angličtina
Zdroj: Journal of oral rehabilitation [J Oral Rehabil] 2024 Jun 14. Date of Electronic Publication: 2024 Jun 14.
DOI: 10.1111/joor.13777
Abstrakt: Objective: This study aimed to investigate whether flow fluid shear stress (FFSS)-mediated signal transduction affects the function of Piezo1 ion channel in chondrocyte and to further explore the role of mechanical overloading in development of temporomandibular joint osteoarthritis (TMJ OA).
Methods: Immunohistochemical staining was used to determine the expression of Piezo1 in TMJ OA tissue collected from rat unilateral anterior crossbite (UAC) models. Chondrocytes harvested from normal adult SD rats were treated with FFSS (0, 4, 8, 12 dyn/cm 2 ) in vitro. Immunofluorescent staining, real-time polymerase chain reaction, western blotting, flow cytometry and phalloidin assay were performed to detect the changes of cellular morphology as well as the expression of Piezo1 and certain pro-inflammatory and degradative factors in chondrocyte.
Results: Immunohistochemical analysis revealed that significantly increased Piezo1 expression was associated with UAC stimulation (p < .05). As applied FFSS escalated (4, 8 and 12 dyn/cm 2 ), the expression levels of Piezo1, ADAMTS-5, MMP-13 and Col-X gradually increased, compared with the non-FFSS group (p < .05). Administering Piezo1 ion channel inhibitor to chondrocytes beforehand, it was observed that expression of ADAMTS-5, MMP-13 and Col-X was substantially decreased following FFSS treatment (p < .05) and the effect of cytoskeletal thinning was counteracted. The activated Piezo1 ion channel enhanced intracellular Ca 2+ excess in chondrocytes during abnormal mechanical stimulation and the increased intracellular Ca 2+ thinned the cytoskeleton of F-actin.
Conclusions: Mechanical overloading activates Piezo1 ion channel to promote pro-inflammation and degradation and to increase Ca 2+ concentration in chondrocyte, which may eventually result in TMJ OA.
(© 2024 John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz: