1
|
Liu N, Ma Y, Gong W, Shao X, Shi T, Li L, Wu W, Chen X, Shi Y, Zhang P, Lin J, Wang C, Fang D, Yang L, Wang P, Gao W, He Y, An X, Du R, Chen Y, Liu B, Qin J, Chen D, Cai P, Jiang Q, Guo B. Osteocyte-derived extracellular vesicles mediate the bone-to-cartilage crosstalk and promote osteoarthritis progression. Nat Commun 2025; 16:4746. [PMID: 40399261 PMCID: PMC12095588 DOI: 10.1038/s41467-025-59861-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2024] [Accepted: 05/02/2025] [Indexed: 05/23/2025] Open
Abstract
Osteoarthritis is a common degenerative joint disease, in which mechanical overloading disrupts subchondral bone remodeling before cartilage degeneration and the osteocytes in the subchondral bone are mainly responsible for mechanosensing. However, their functional role in the early osteoarthritis is still unclear. Here we show that mechanical stress induces osteocytes in subchondral bone to secrete extracellular vesicles that accelerate cartilage metabolic dysregulation in patients with both sexes and male mice. The miR-23b-3p in extracellular vesicles promotes cartilage catabolism and inhibits anabolism by targeting OTUD4, disrupting mitophagy in chondrocytes. Inhibiting miR-23b-3p in osteocytes or chondrocytes reduces cartilage degeneration and osteoarthritis progression in male mice. Together, our findings highlight that osteocyte-derived extracellular vesicles mediate communication with chondrocytes and suggest miR-23b-3p as a potential therapeutic target for osteoarthritis.
Collapse
Affiliation(s)
- Na Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Yuze Ma
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Wang Gong
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Xiaoyan Shao
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Tianshu Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Lan Li
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Wenshu Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Xiang Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Yong Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Pan Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Jiaquan Lin
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Chengzhi Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Depeng Fang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Lin Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Pu Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Wentian Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Yi He
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Xueying An
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Rui Du
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Xuzhou Medical University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
| | - Ying Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Bin Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Jianghui Qin
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Dongyang Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China
| | - Pingqiang Cai
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China.
| | - Qing Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China.
| | - Baosheng Guo
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, PR China.
| |
Collapse
|
2
|
Zhu S, Wang YY, Hu XY, Zhou HL, Wang G, Chen HX, Zeng HB, Xie H, Wang ZX, Xu R. Akkermansia muciniphila-derived extracellular vesicles mitigate smoking-induced prostate inflammation and fibrosis. Int Immunopharmacol 2025; 149:114195. [PMID: 39904036 DOI: 10.1016/j.intimp.2025.114195] [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: 04/12/2024] [Revised: 12/26/2024] [Accepted: 01/27/2025] [Indexed: 02/06/2025]
Abstract
BACKGROUND Cigarette smoking (CS) is a well-known risk factor for inducing prostate inflammation and fibrosis, presenting significant threats to male reproductive health. Recent research has highlighted the significant role of gut microbiota (GM) in regulating extra-intestinal organs. This study aimed to investigate the effects of Akk and its extracellular vesicles (EVs) on CS-induced prostate inflammation and fibrosis. METHODS This study utilized a mouse model of mainstream smoke exposure to investigate the effects of Akkermansia muciniphila (Akk) and its EVs on prostate tissue affected by CS. Prostate inflammation and fibrosis was assessed through HE staining, qRT-PCR, IHC staining, and immunofluorescence staining. Functional protein P9 enriched in Akk-EVs was used to intervene cigarette smoke extract (CSE)-exposed BPH-1 cells in vitro to validate the anti-inflammatory and anti-fibrotic effects. RESULTS The results revealed that CS exposure leads or led to pronounced prostatic inflammation and fibrosis, accompanied by a notable decrease in intestinal levels of Akk. Supplementation with Akk was found to effectively mitigate prostate lesions caused by CS, with the therapeutic effects primarily attributed to the Akk-derived extracellular vesicles (Akk-EVs). The transport kinetics of Akk-EVs to prostate tissue and cells were elucidated, providing insights into their mechanism of action. Both in vitro and in vivo experiments demonstrated that Akk-EVs and their enriched P9 protein effectively ameliorated CS-induced pro-inflammatory cytokine expression and collagen deposition in the prostate. CONCLUSIONS These findings highlight the anti-inflammatory and anti-fibrotic properties of Akk-EVs and P9 protein, suggesting their potential as therapeutic agents for CS-induced prostate lesions.
Collapse
Affiliation(s)
- Sheng Zhu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Hunan Key Laboratory of Angmedicine, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, China
| | - Yi-Yi Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Hunan Key Laboratory of Angmedicine, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, China
| | - Xin-Yue Hu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Hunan Key Laboratory of Angmedicine, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, China
| | - Hong-Liang Zhou
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Hunan Key Laboratory of Angmedicine, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, China
| | - Guang Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Hunan Key Laboratory of Angmedicine, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, China
| | - Hui-Xiang Chen
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Hong-Bo Zeng
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Hui Xie
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Hunan Key Laboratory of Angmedicine, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, China
| | - Zhen-Xing Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Hunan Key Laboratory of Angmedicine, Changsha, Hunan 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan 410008, China.
| | - Ran Xu
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
| |
Collapse
|
3
|
Xu W, Zhang Y, Li L, Pan L, Lu L, Zhi S, Li W. Osteocyte-derived exosomes regulate the DLX2/wnt pathway to alleviate osteoarthritis by mediating cartilage repair. Autoimmunity 2024; 57:2364686. [PMID: 38946534 DOI: 10.1080/08916934.2024.2364686] [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: 09/19/2023] [Accepted: 06/02/2024] [Indexed: 07/02/2024]
Abstract
BACKGROUND Chondrocyte viability, apoptosis, and migration are closely related to cartilage injury in osteoarthritis (OA) joints. Exosomes are identified as potential therapeutic agents for OA. OBJECTIVE This study aimed to investigate the role of exosomes derived from osteocytes in OA, particularly focusing on their effects on cartilage repair and molecular mechanisms. METHODS An injury cell model was established by treating chondrocytes with IL-1β. Cartilage repair was evaluated using cell counting kit-8, flow cytometry, scratch test, and Western Blot. Molecular mechanisms were analyzed using quantitative real-time PCR, bioinformatic analysis, and Western Blot. An OA mouse model was established to explore the role of exosomal DLX2 in vivo. RESULTS Osteocyte-released exosomes promoted cell viability and migration, and inhibited apoptosis and extracellular matrix (ECM) deposition. Moreover, exosomes upregulated DLX2 expression, and knockdown of DLX2 activated the Wnt pathway. Additionally, exosomes attenuated OA in mice by transmitting DLX2. CONCLUSION Osteocyte-derived exosomal DLX2 alleviated IL-1β-induced cartilage repair and inactivated the Wnt pathway, thereby alleviating OA progression. The findings suggested that osteocyte-derived exosomes may hold promise as a treatment for OA.
Collapse
Affiliation(s)
- Wenjuan Xu
- Chongqing Emergency Medical Center, Chongqing University Central Hospital, Clinical Laboratory, Chongqing, China
| | - Yuanyuan Zhang
- Chongqing Emergency Medical Center, Chongqing University Central Hospital, Clinical Laboratory, Chongqing, China
| | - Lijuan Li
- Chongqing Emergency Medical Center, Chongqing University Central Hospital, Clinical Laboratory, Chongqing, China
| | - Liyan Pan
- Chongqing Emergency Medical Center, Chongqing University Central Hospital, Clinical Laboratory, Chongqing, China
| | - Li Lu
- Chongqing Emergency Medical Center, Chongqing University Central Hospital, Clinical Laboratory, Chongqing, China
| | - Shenshen Zhi
- Department of Blood Transfusion, Chongqing University Central Hospital, School of Medicine, Chongqing University, Chongqing, China
| | - Wei Li
- Chongqing Emergency Medical Center, Chongqing University Central Hospital, Clinical Laboratory, Chongqing, China
| |
Collapse
|
4
|
Yuze Ma, Liu N, Shao X, Shi T, Lin J, Liu B, Shen T, Guo B, Jiang Q. Mechanical loading on osteocytes regulates thermogenesis homeostasis of brown adipose tissue by influencing osteocyte-derived exosomes. J Orthop Translat 2024; 48:39-52. [PMID: 39087139 PMCID: PMC11287067 DOI: 10.1016/j.jot.2024.06.012] [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: 01/16/2024] [Revised: 05/25/2024] [Accepted: 06/19/2024] [Indexed: 08/02/2024] Open
Abstract
Background Osteocytes are the main stress-sensing cells in bone. The substances secreted by osteocytes under mechanical loading play a crucial role in maintaining body homeostasis. Osteocytes have recently been found to release exosomes into the circulation, but whether they are affected by mechanical loading or participate in the regulation of systemic homeostasis remains unclear. Methods We used a tail-suspension model to achieve mechanical unloading on osteocytes. Osteocyte-specific CD63 reporter mice were used for osteocyte exosome tracing. Exosome detection and inhibitor treatment were performed to confirm the effect of mechanical loading on exosome secretion by osteocytes. Co-culture, GW4869 and exosome treatment were used to investigate the biological functions of osteocyte-derived exosomes on brown adipose tissue (BAT) and primary brown adipocytes. Osteocyte-specific Dicer KO mice were used to screen for loading-sensitive miRNAs. Dual luciferase assay was performed to validate the selected target gene. Results Firstly, we found the thermogenic activity was increased in BAT of mice subjected to tail suspension, which is due to the effect of unloaded bone on circulating exosomes. Further, we showed that the secretion of exosomes from osteocytes is regulated by mechanical loading, and osteocyte-derived exosomes can reach BAT and affect thermogenic activity. More importantly, we confirmed the effect of osteocyte exosomes on BAT both in vivo and in vitro. Finally, we discovered that let-7e-5p contained in exosomes is under regulation of mechanical loading and regulates thermogenic activity of BAT by targeting Ppargc1a. Conclusion Exosomes derived from osteocytes are loading-sensitive, and play a vital role in regulation on BAT, suggesting that regulation of exosomes secretion can restore homeostasis. The translational potential of this article This study provides a biological rationale for using osteocyte exosomes as potential agents to modulate BAT and even whole-body homeostasis. It also provides a new pathological basis and a new treatment approach for mechanical unloading conditions such as spaceflight.
Collapse
Affiliation(s)
- Yuze Ma
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Na Liu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Xiaoyan Shao
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Tianshu Shi
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Jiaquan Lin
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Bin Liu
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Tao Shen
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Baosheng Guo
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Qing Jiang
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| |
Collapse
|
5
|
Wang ZX, Lin X, Cao J, Liu YW, Luo ZW, Rao SS, Wang Q, Wang YY, Chen CY, Zhu GQ, Li FXZ, Tan YJ, Hu Y, Yin H, Li YY, He ZH, Liu ZZ, Yuan LQ, Zhou Y, Wang ZG, Xie H. Young osteocyte-derived extracellular vesicles facilitate osteogenesis by transferring tropomyosin-1. J Nanobiotechnology 2024; 22:208. [PMID: 38664789 PMCID: PMC11046877 DOI: 10.1186/s12951-024-02367-x] [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: 10/12/2023] [Accepted: 02/22/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Bone marrow mesenchymal stem cells (BMSCs) can undergo inadequate osteogenesis or excessive adipogenesis as they age due to changes in the bone microenvironment, ultimately resulting in decreased bone density and elevated risk of fractures in senile osteoporosis. This study aims to investigate the effects of osteocyte senescence on the bone microenvironment and its influence on BMSCs during aging. RESULTS Primary osteocytes were isolated from 2-month-old and 16-month-old mice to obtain young osteocyte-derived extracellular vesicles (YO-EVs) and senescent osteocyte-derived EVs (SO-EVs), respectively. YO-EVs were found to significantly increase alkaline phosphatase activity, mineralization deposition, and the expression of osteogenesis-related genes in BMSCs, while SO-EVs promoted BMSC adipogenesis. Neither YO-EVs nor SO-EVs exerted an effect on the osteoclastogenesis of primary macrophages/monocytes. Our constructed transgenic mice, designed to trace osteocyte-derived EV distribution, revealed abundant osteocyte-derived EVs embedded in the bone matrix. Moreover, mature osteoclasts were found to release osteocyte-derived EVs from bone slices, playing a pivotal role in regulating the functions of the surrounding culture medium. Following intravenous injection into young and elderly mouse models, YO-EVs demonstrated a significant enhancement of bone mass and biomechanical strength compared to SO-EVs. Immunostaining of bone sections revealed that YO-EV treatment augmented the number of osteoblasts on the bone surface, while SO-EV treatment promoted adipocyte formation in the bone marrow. Proteomics analysis of YO-EVs and SO-EVs showed that tropomyosin-1 (TPM1) was enriched in YO-EVs, which increased the matrix stiffness of BMSCs, consequently promoting osteogenesis. Specifically, the siRNA-mediated depletion of Tpm1 eliminated pro-osteogenic activity of YO-EVs both in vitro and in vivo. CONCLUSIONS Our findings suggested that YO-EVs played a crucial role in maintaining the balance between bone resorption and formation, and their pro-osteogenic activity declining with aging. Therefore, YO-EVs and the delivered TPM1 hold potential as therapeutic targets for senile osteoporosis.
Collapse
Affiliation(s)
- Zhen-Xing Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Xiao Lin
- The Second Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Jia Cao
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Yi-Wei Liu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
| | - Zhong-Wei Luo
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
| | - Shan-Shan Rao
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Qiang Wang
- Department of Laboratory Medicine, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, 310013, Zhejiang, China
| | - Yi-Yi Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
| | - Chun-Yuan Chen
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Guo-Qiang Zhu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
| | - Fu-Xing-Zi Li
- The Second Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Yi-Juan Tan
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
| | - Yin Hu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Hao Yin
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
| | - You-You Li
- Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Ze-Hui He
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
| | - Zheng-Zhao Liu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Ling-Qing Yuan
- The Second Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Yong Zhou
- Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Zheng-Guang Wang
- Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China.
| | - Hui Xie
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China.
| |
Collapse
|
6
|
Wang YY, Zhu GQ, Xia K, Zeng HB, He YH, Xie H, Wang ZX, Xu R. Omentin-1 inhibits the development of benign prostatic hyperplasia by attenuating local inflammation. Mol Med 2024; 30:41. [PMID: 38519941 PMCID: PMC10960431 DOI: 10.1186/s10020-024-00805-y] [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: 11/28/2023] [Accepted: 03/07/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is a prevalent disease affecting elderly men, with chronic inflammation being a critical factor in its development. Omentin-1, also known as intelectin-1 (ITLN-1), is an anti-inflammatory protein primarily found in the epithelial cells of the small intestine. This study aimed to investigate the potential of ITLN-1 in mitigating BPH by modulating local inflammation in the prostate gland. METHODS Our investigation involved two in vivo experimental models. Firstly, ITLN-1 knockout mice (Itln-1-/-) were used to study the absence of ITLN-1 in BPH development. Secondly, a testosterone propionate (TP)-induced BPH mouse model was treated with an ITLN-1 overexpressing adenovirus. We assessed BPH severity using prostate weight index and histological analysis, including H&E staining, immunohistochemistry, and enzyme-linked immunosorbent assay. In vitro, the impact of ITLN-1 on BPH-1 cell proliferation and inflammatory response was evaluated using cell proliferation assays and enzyme-linked immunosorbent assay. RESULTS In vivo, Itln-1-/- mice exhibited elevated prostate weight index, enlarged lumen area, and higher TNF-α levels compared to wild-type littermates. In contrast, ITLN-1 overexpression in TP-induced BPH mice resulted in reduced prostate weight index, lumen area, and TNF-α levels. In vitro studies indicated that ITLN-1 suppressed the proliferation of prostate epithelial cells and reduced TNF-α production in macrophages, suggesting a mechanism involving the inhibition of macrophage-mediated inflammation. CONCLUSION The study demonstrates that ITLN-1 plays a significant role in inhibiting the development of BPH by reducing local inflammation in the prostate gland. These findings highlight the potential of ITLN-1 as a therapeutic target in the management of BPH.
Collapse
Affiliation(s)
- Yi-Yi Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Guo-Qiang Zhu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Kun Xia
- Department of Orthopedics, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750000, Ningxia, China
| | - Hong-Bo Zeng
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Yun-Hui He
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Hui Xie
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China
| | - Zhen-Xing Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- Hunan Key Laboratory of Angmedicine, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders (Xiangya Hospital), Changsha, 410008, Hunan, China.
| | - Ran Xu
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.
| |
Collapse
|
7
|
Jiang Y, Wang Z, Liu X, Wan M, Liu Y, Jiao B, Liao X, Luo Z, Wang Y, Hong C, Tan Y, Weng L, Zhou Y, Rao S, Cao J, Liu Z, Wan T, Zhu Y, Xie H, Shen L. The Protective Effects of Osteocyte-Derived Extracellular Vesicles Against Alzheimer's Disease Diminished with Aging. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105316. [PMID: 35508803 PMCID: PMC9189667 DOI: 10.1002/advs.202105316] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/16/2022] [Indexed: 05/16/2023]
Abstract
Both Alzheimer's disease (AD) and osteoporosis (OP) are common age-associated degenerative diseases and are strongly correlated with clinical epidemiology. However, there is a lack of clear pathological relationship between the brain and bone in the current understanding. Here, it is found that young osteocyte, the most abundant cells in bone, secretes extracellular vesicles (OCYYoung -EVs) to ameliorate cognitive impairment and the pathogenesis of AD in APP/PS1 mice and model cells. These benefits of OCYYoung -EVs are diminished in aged osteocyte-derived EVs (OCYAged -EVs). Based on the self-constructed OCY-EVs tracer transgenic mouse models and the in vivo fluorescent imaging system, OCY-EVs have been observed to be transported to the brain under physiological and pathological conditions. In the hippocampal administration of Aβ40 induced young AD model mice, the intramedullary injection of Rab27a-shRNA adenovirus inhibits OCYYoung -EVs secretion from bone and aggravates cognitive impairment. Proteomic quantitative analysis reveals that OCYYoung -EVs, compared to OCYAged -EVs, enrich multiple protective factors of AD pathway. The study uncovers the role of OCY-EV as a regulator of brain health, suggesting a novel mechanism in bone-brain communication.
Collapse
|
8
|
Exosomes in the Pathogenesis, Progression, and Treatment of Osteoarthritis. Bioengineering (Basel) 2022; 9:bioengineering9030099. [PMID: 35324788 PMCID: PMC8945849 DOI: 10.3390/bioengineering9030099] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 12/18/2022] Open
Abstract
Osteoarthritis (OA) is a prevalent and debilitating age-related joint disease characterized by articular cartilage degeneration, synovial membrane inflammation, osteophyte formation, as well as subchondral bone sclerosis. OA drugs at present are mainly palliative and do not halt or reverse disease progression. Currently, no disease-modifying OA drugs (DMOADs) are available and total joint arthroplasty remains a last resort. Therefore, there is an urgent need for the development of efficacious treatments for OA management. Among all novel pharmaco-therapeutical options, exosome-based therapeutic strategies are highly promising. Exosome cargoes, which include proteins, lipids, cytokines, and various RNA subtypes, are potentially capable of regulating intercellular communications and gene expression in target cells and tissues involved in OA development. With extensive research in recent years, exosomes in OA studies are no longer limited to classic, mesenchymal stem cell (MSC)-derived vesicles. New origins, structures, and functions of exosomes are constantly being discovered and investigated. This review systematically summarizes the non-classic origins, biosynthesis, and extraction of exosomes, describes modification and delivery techniques, explores their role in OA pathogenesis and progression, and discusses their therapeutic potential and hurdles to overcome in OA treatment.
Collapse
|