1
|
Chen C, Wang B, Zhao X, Luo Y, Fu L, Qi X, Ying Z, Chen L, Wang Q, Sun S, Chen D, Kang P. Lithium Promotes Osteogenesis via Rab11a-Facilitated Exosomal Wnt10a Secretion and β-Catenin Signaling Activation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30793-30809. [PMID: 38833412 DOI: 10.1021/acsami.4c04199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Both bone mesenchymal stem cells (BMSCs) and their exosomes suggest promising therapeutic tools for bone regeneration. Lithium has been reported to regulate BMSC function and engineer exosomes to improve bone regeneration in patients with glucocorticoid-induced osteonecrosis of the femoral head. However, the mechanisms by which lithium promotes osteogenesis have not been elucidated. Here, we demonstrated that lithium promotes the osteogenesis of BMSCs via lithium-induced increases in the secretion of exosomal Wnt10a to activate Wnt/β-catenin signaling, whose secretion is correlated with enhanced MARK2 activation to increase the trafficking of the Rab11a and Rab11FIP1 complexes together with exosomal Wnt10a to the plasma membrane. Then, we compared the proosteogenic effects of exosomes derived from lithium-treated or untreated BMSCs (Li-Exo or Con-Exo) both in vitro and in vivo. We found that, compared with Con-Exo, Li-Exo had superior abilities to promote the uptake and osteogenic differentiation of BMSCs. To optimize the in vivo application of these hydrogels, we fabricated Li-Exo-functionalized gelatin methacrylate (GelMA) hydrogels, which are more effective at promoting osteogenesis and bone repair than Con-Exo. Collectively, these findings demonstrate the mechanism by which lithium promotes osteogenesis and the great promise of lithium for engineering BMSCs and their exosomes for bone regeneration, warranting further exploration in clinical practice.
Collapse
Affiliation(s)
- Changjun Chen
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan 250014, China
| | - Baoning Wang
- Department of Microbiology, West China of Preclinical and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Xin Zhao
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250014, China
| | - Yue Luo
- Department of Orthopedic Surgery, North Sichuan Medical College, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - Li Fu
- Research Core Facility, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xin Qi
- Department of Neurosurgery and Neurosurgery Research Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhendong Ying
- Department of Orthopedic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan 250014, China
| | - Liyile Chen
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiuru Wang
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shuo Sun
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dailing Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan 250014, China
| | - Pengde Kang
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| |
Collapse
|
2
|
Tao SS, Cao F, Sam NB, Li HM, Feng YT, Ni J, Wang P, Li XM, Pan HF. Dickkopf-1 as a promising therapeutic target for autoimmune diseases. Clin Immunol 2022; 245:109156. [DOI: 10.1016/j.clim.2022.109156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/24/2022] [Accepted: 10/06/2022] [Indexed: 11/03/2022]
|