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Wu Z, Duan S, Li M, Zhang A, Yang H, Luo J, Cheng R, Hu T. Autophagy regulates bone loss via the RANKL/RANK/OPG axis in an experimental rat apical periodontitis model. Int Endod J 2024. [PMID: 38923421 DOI: 10.1111/iej.14103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 03/19/2024] [Accepted: 05/19/2024] [Indexed: 06/28/2024]
Abstract
AIM Autophagy is involved in human apical periodontitis (AP). However, it is not clear whether autophagy is protective or destructive in bone loss via the receptor activator of nuclear factor-κB ligand (RANKL)/RANK/osteoprotegerin (OPG) axis. This study aimed to investigate the involvement of autophagy via the RANKL/RANK/OPG axis during the development of AP in an experimental rat model. METHODOLOGY Twenty-four female Sprague-Dawley rats were divided into control, experimental AP (EAP) + saline, and EAP + 3-methyladenine (An autophagy inhibitor, 3-MA) groups. The control group did not receive any treatment. The EAP + saline group and the EAP + 3-MA group received intraperitoneal injections of saline and 3-MA, respectively, starting 1 week after the pulp was exposed. Specimens were collected for microcomputed tomography (micro-CT) scanning, histological processing, and immunostaining to examine the expression of light chain 3 beta (LC3B), RANK, RANKL, and OPG. Data were analysed using one-way analysis of variance (p < .05). RESULTS Micro-CT showed greater bone loss in the EAP + 3-MA group than in the EAP + saline group, indicated by an elevated trabecular space (Tb.Sp) (p < .05). Inflammatory cell infiltration was observed in the EAP + saline and EAP + 3-MA groups. Compared with EAP + saline group, the EAP + 3-MA group showed weaker expression of LC3B (p < .01) and OPG (p < .05), more intense expression of RANK (p < .01) and RANKL (p < .01), and a higher RANKL/OPG ratio (p < .05). CONCLUSION Autophagy may exert a protective effect against AP by regulating the RANKL/RANK/OPG axis, thereby inhibiting excessive bone loss.
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Affiliation(s)
- Zhiwu Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shaoying Duan
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mingming Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Aopeng Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jingjing Luo
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ran Cheng
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tao Hu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Zhang H, Gu W, Wu G, Yu Y. Aging and Autophagy: Roles in Musculoskeletal System Injury. Aging Dis 2024:AD.2024.0362. [PMID: 38913046 DOI: 10.14336/ad.2024.0362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 06/03/2024] [Indexed: 06/25/2024] Open
Abstract
Aging is a multifactorial process that ultimately leads to a decline in physiological function and a consequent reduction in the health span, and quality of life in elderly population. In musculoskeletal diseases, aging is often associated with a gradual loss of skeletal muscle mass and strength, resulting in reduced functional capacity and an increased risk of chronic metabolic diseases, leading to impaired function and increased mortality. Autophagy is a highly conserved physiological process by which cells, under the regulation of autophagy-related genes, degrade their own organelles and large molecules by lysosomal degradation. This process is unique to eukaryotic cells and is a strict regulator of homeostasis, the maintenance of energy and substance balance. Autophagy plays an important role in a wide range of physiological and pathological processes such as cell homeostasis, aging, immunity, tumorigenesis and neurodegenerative diseases. On the one hand, under mild stress conditions, autophagy mediates the restoration of homeostasis and proliferation, reduction of the rate of aging and delay of the aging process. On the other hand, under more intense stress conditions, an inadequate suppression of autophagy can lead to cellular aging. Conversely, autophagy activity decreases during aging. Due to the interrelationship between aging and autophagy, limited literature exists on this topic. Therefore, the objective of this review is to summarize the current concepts on aging and autophagy in the musculoskeletal system. The aim is to better understand the mechanisms of age-related changes in bone, joint and muscle, as well as the interaction relationship between autophagy and aging. Its goal is to provide a comprehensive perspective for the improvement of diseases of the musculoskeletal system.
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Affiliation(s)
- Haifeng Zhang
- Department of Orthopedics Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenhui Gu
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine, Nantong University, Nantong, Jiangsu, China
| | - Genbin Wu
- Department of Orthopedics Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yinxian Yu
- Department of Orthopedics Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Chen W, Lu Y, Zhang Y, Wu J, McVicar A, Chen Y, Zhu S, Zhu G, Lu Y, Zhang J, McConnell M, Li YP. Cbfβ regulates Wnt/β-catenin, Hippo/Yap, and Tgfβ signaling pathways in articular cartilage homeostasis and protects from ACLT surgery-induced osteoarthritis. eLife 2024; 13:e95640. [PMID: 38805545 PMCID: PMC11132684 DOI: 10.7554/elife.95640] [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: 01/02/2024] [Accepted: 04/30/2024] [Indexed: 05/30/2024] Open
Abstract
As the most common degenerative joint disease, osteoarthritis (OA) contributes significantly to pain and disability during aging. Several genes of interest involved in articular cartilage damage in OA have been identified. However, the direct causes of OA are poorly understood. Evaluating the public human RNA-seq dataset showed that CBFB (subunit of a heterodimeric Cbfβ/Runx1, Runx2, or Runx3 complex) expression is decreased in the cartilage of patients with OA. Here, we found that the chondrocyte-specific deletion of Cbfb in tamoxifen-induced Cbfbf/f;Col2a1-CreERT mice caused a spontaneous OA phenotype, worn articular cartilage, increased inflammation, and osteophytes. RNA-sequencing analysis showed that Cbfβ deficiency in articular cartilage resulted in reduced cartilage regeneration, increased canonical Wnt signaling and inflammatory response, and decreased Hippo/Yap signaling and Tgfβ signaling. Immunostaining and western blot validated these RNA-seq analysis results. ACLT surgery-induced OA decreased Cbfβ and Yap expression and increased active β-catenin expression in articular cartilage, while local AAV-mediated Cbfb overexpression promoted Yap expression and diminished active β-catenin expression in OA lesions. Remarkably, AAV-mediated Cbfb overexpression in knee joints of mice with OA showed the significant protective effect of Cbfβ on articular cartilage in the ACLT OA mouse model. Overall, this study, using loss-of-function and gain-of-function approaches, uncovered that low expression of Cbfβ may be the cause of OA. Moreover, Local admission of Cbfb may rescue and protect OA through decreasing Wnt/β-catenin signaling, and increasing Hippo/Yap signaling and Tgfβ/Smad2/3 signaling in OA articular cartilage, indicating that local Cbfb overexpression could be an effective strategy for treatment of OA.
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Affiliation(s)
- Wei Chen
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
- Department of Pathology, School of Medicine, University of Alabama at BirminghamBirminghamUnited States
| | - Yun Lu
- Department of Pathology, School of Medicine, University of Alabama at BirminghamBirminghamUnited States
| | - Yan Zhang
- Department of Pathology, School of Medicine, University of Alabama at BirminghamBirminghamUnited States
| | - Jinjin Wu
- Department of Pathology, School of Medicine, University of Alabama at BirminghamBirminghamUnited States
| | - Abigail McVicar
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
| | - Yilin Chen
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
| | - Siyu Zhu
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
| | - Guochun Zhu
- Department of Pathology, School of Medicine, University of Alabama at BirminghamBirminghamUnited States
| | - You Lu
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
| | - Jiayang Zhang
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
| | - Matthew McConnell
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
| | - Yi-Ping Li
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane UniversityNew OrleansUnited States
- Department of Pathology, School of Medicine, University of Alabama at BirminghamBirminghamUnited States
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Wei Y, Zheng Z, Zhang Y, Sun J, Xu S, Di X, Ding X, Ding G. Regulation of mesenchymal stem cell differentiation by autophagy. Open Med (Wars) 2024; 19:20240968. [PMID: 38799254 PMCID: PMC11117459 DOI: 10.1515/med-2024-0968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/20/2024] [Accepted: 04/17/2024] [Indexed: 05/29/2024] Open
Abstract
Autophagy, a process that isolates intracellular components and fuses them with lysosomes for degradation, plays an important cytoprotective role by eliminating harmful intracellular substances and maintaining cellular homeostasis. Mesenchymal stem cells (MSCs) are multipotent progenitor cells with the capacity for self-renewal that can give rise to a subset of tissues and therefore have potential in regenerative medicine. However, a variety of variables influence the biological activity of MSCs following their proliferation and transplantation in vitro. The regulation of autophagy in MSCs represents a possible mechanism that influences MSC differentiation properties under the right microenvironment, affecting their regenerative and therapeutic potential. However, a deeper understanding of exactly how autophagy is mobilized to function as well as clarifying the mechanisms by which autophagy promotes MSCs differentiation is still needed. Here, we review the current literature on the complex link between MSCs differentiation and autophagy induced by various extracellular or intracellular stimuli and the molecular targets that influence MSCs lineage determination, which may highlight the potential regulation of autophagy on MSCs' therapeutic capacity, and provide a broader perspective on the clinical application of MSCs in the treatment of a wide range of diseases.
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Affiliation(s)
- Yanan Wei
- School of Stomatology, Shandong Second Medical University, Weifang, 261053, Shandong, China
| | - Zejun Zheng
- School of Stomatology, Shandong Second Medical University, Weifang, 261053, Shandong, China
| | - Ying Zhang
- School of Stomatology, Shandong Second Medical University, Weifang, 261053, Shandong, China
| | - Jinmeng Sun
- School of Stomatology, Shandong Second Medical University, Weifang, 261053, Shandong, China
| | - Shuangshuang Xu
- School of Stomatology, Shandong Second Medical University, Weifang, 261053, Shandong, China
| | - Xinsheng Di
- School of Stomatology, Shandong Second Medical University, Weifang, 261053, Shandong, China
| | - Xiaoling Ding
- Clinical Competency Training Center, Shandong Second Medical University, Weifang, 261053, Shandong, China
| | - Gang Ding
- School of Stomatology, Shandong Second Medical University, Weifang, 261053, Shandong, China
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Liang W, Wei T, Hu L, Chen M, Tong L, Zhou W, Duan X, Zhao X, Zhou W, Jiang Q, Xiao G, Zou W, Chen D, Zou Z, Bai X. An integrated multi-omics analysis reveals osteokines involved in global regulation. Cell Metab 2024; 36:1144-1163.e7. [PMID: 38574738 DOI: 10.1016/j.cmet.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/22/2024] [Accepted: 03/10/2024] [Indexed: 04/06/2024]
Abstract
Bone secretory proteins, termed osteokines, regulate bone metabolism and whole-body homeostasis. However, fundamental questions as to what the bona fide osteokines and their cellular sources are and how they are regulated remain unclear. In this study, we analyzed bone and extraskeletal tissues, osteoblast (OB) conditioned media, bone marrow supernatant (BMS), and serum, for basal osteokines and those responsive to aging and mechanical loading/unloading. We identified 375 candidate osteokines and their changes in response to aging and mechanical dynamics by integrating data from RNA-seq, scRNA-seq, and proteomic approaches. Furthermore, we analyzed their cellular sources in the bone and inter-organ communication facilitated by them (bone-brain, liver, and aorta). Notably, we discovered that senescent OBs secrete fatty-acid-binding protein 3 to propagate senescence toward vascular smooth muscle cells (VSMCs). Taken together, we identified previously unknown candidate osteokines and established a dynamic regulatory network among them, thus providing valuable resources to further investigate their systemic roles.
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Affiliation(s)
- Wenquan Liang
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Tiantian Wei
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Le Hu
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Meijun Chen
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Liping Tong
- Research Center for Computer-Aided Drug Discovery, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wu Zhou
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xingwei Duan
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaoyang Zhao
- Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Weijie Zhou
- Department of Pathology, Nanfang Hospital, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, 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, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen 518055, China
| | - Weiguo Zou
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Di Chen
- Research Center for Computer-Aided Drug Discovery, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Faculty of Pharmaceutical Sciences, Shenzhen Institute of Advanced Technology, Shenzhen, China.
| | - Zhipeng Zou
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Xiaochun Bai
- State Key Laboratory of Organ Failure Research, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Academy of Orthopedics, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province 510630, China.
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6
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Zhang S, Lee Y, Liu Y, Yu Y, Han I. Stem Cell and Regenerative Therapies for the Treatment of Osteoporotic Vertebral Compression Fractures. Int J Mol Sci 2024; 25:4979. [PMID: 38732198 PMCID: PMC11084822 DOI: 10.3390/ijms25094979] [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: 04/09/2024] [Revised: 04/28/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Osteoporotic vertebral compression fractures (OVCFs) significantly increase morbidity and mortality, presenting a formidable challenge in healthcare. Traditional interventions such as vertebroplasty and kyphoplasty, despite their widespread use, are limited in addressing the secondary effects of vertebral fractures in adjacent areas and do not facilitate bone regeneration. This review paper explores the emerging domain of regenerative therapies, spotlighting stem cell therapy's transformative potential in OVCF treatment. It thoroughly describes the therapeutic possibilities and mechanisms of action of mesenchymal stem cells against OVCFs, relying on recent clinical trials and preclinical studies for efficacy assessment. Our findings reveal that stem cell therapy, particularly in combination with scaffolding materials, holds substantial promise for bone regeneration, spinal stability improvement, and pain mitigation. This integration of stem cell-based methods with conventional treatments may herald a new era in OVCF management, potentially improving patient outcomes. This review advocates for accelerated research and collaborative efforts to translate laboratory breakthroughs into clinical practice, emphasizing the revolutionary impact of regenerative therapies on OVCF management. In summary, this paper positions stem cell therapy at the forefront of innovation for OVCF treatment, stressing the importance of ongoing research and cross-disciplinary collaboration to unlock its full clinical potential.
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Affiliation(s)
- Songzi Zhang
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea; (S.Z.); (Y.L.); (Y.Y.)
| | - Yunhwan Lee
- Department of Medicine, School of Medicine, CHA University, Seongnam-si 13496, Republic of Korea;
| | - Yanting Liu
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea; (S.Z.); (Y.L.); (Y.Y.)
| | - Yerin Yu
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea; (S.Z.); (Y.L.); (Y.Y.)
| | - Inbo Han
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Republic of Korea; (S.Z.); (Y.L.); (Y.Y.)
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Zhou F, Wang Z, Zhang G, Wu Y, Xiong Y. Immunosenescence and inflammaging: Conspiracies against alveolar bone turnover. Oral Dis 2024; 30:1806-1817. [PMID: 37288702 DOI: 10.1111/odi.14642] [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: 01/25/2023] [Revised: 05/11/2023] [Accepted: 05/27/2023] [Indexed: 06/09/2023]
Abstract
OBJECTIVE Inflammaging and immunosenescence are characteristics of senescent immune system alterations. This review provides insights into inflammaging and immunosenescence in periodontitis and focuses on the innerlink of inflammaging and immunosenescence in alveolar bone turnover from a perspective of cell-cell interaction. METHODS This review is conducted by a narrative approach to discuss the effect of inflammaging and immunosenescence in aging-related alveolar bone loss. A comprehensive literature research in PubMed and Google was applied to identify reports in English. RESULTS Inflammaging is concerned with abnormal M1 polarization and increasing circulating inflammatory cytokines, while immunosenescence involves reduced infection and vaccine responses, depressed antimicrobial function, and infiltration of aged B cells and memory T cells. TLR-mediated inflammaging and altered adaptive immunity significantly affect alveolar bone turnover and aggravate aging-related alveolar bone loss. Besides, energy consumption also plays a vital role in aged immune and skeletal system of periodontitis. CONCLUSIONS Senescent immune system exerts a significant function in aging-related alveolar bone loss. Inflammaging and immunosenescence interact functionally and mechanistically, which affects alveolar bone turnover. Therefore, further clinical treatment strategies targeting alveolar bone loss could be based on the specific molecular mechanism connecting inflammaging, immunosenescence, and alveolar bone turnover.
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Affiliation(s)
- Feng Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhanqi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Guorui Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yingying Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yi Xiong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Li Z, Wang B, Wang R, Zhang Z, Xiong J, Wang X, Ma Y, Han L. Identification of PKM2 as a pyroptosis-related key gene aggravates senile osteoporosis via the NLRP3/Caspase-1/GSDMD signaling pathway. Int J Biochem Cell Biol 2024; 169:106537. [PMID: 38342404 DOI: 10.1016/j.biocel.2024.106537] [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: 09/26/2023] [Revised: 12/16/2023] [Accepted: 01/23/2024] [Indexed: 02/13/2024]
Abstract
BACKGROUNDS Senile osteoporosis-alternatively labeled as skeletal aging-encompasses age-induced bone deterioration and loss of bone microarchitecture. Recent studies have indicated a potential association between senile osteoporosis and chronic systemic inflammation, and pyroptosis in bone marrow-derived mesenchymal stem cells is speculated to contribute to bone loss and osteoporosis. Therefore, targeting pyroptosis in stem cells may be a potential therapeutic strategy for treating osteoporosis. METHODS Initially, we conducted bioinformatics analysis to screen the GEO databases to identify the key gene associated with pyroptosis in senile osteoporosis. Next, we analyzed the relationship between altered proteins and clinical data. In vitro experiments were then performed to explore whether the downregulation of PKM2 expression could inhibit pyroptosis. Additionally, an aging-related mouse model of osteoporosis was established to validate the efficacy of a PKM2 inhibitor in alleviating osteoporosis progression. RESULTS We identified PKM2 as a key gene implicated in pyroptosis in senile osteoporosis patients through bioinformatics analysis. Further analyses of bone marrow and stem cells demonstrated significant PKM2 overexpression in senile osteoporosis patients. Silencing PKM2 expression inhibited pyroptosis in senile stem cells, of which the osteogenesis potential and angiogenic function were also primarily promoted. Moreover, the results in vivo demonstrated that administering PKM2 inhibitors suppressed pyroptosis in senile osteoporosis mice and mitigated senile osteoporosis progression. CONCLUSION Our study uncovered PKM2, a key pyroptosis marker of bone marrow mesenchymal stem cells in senile osteoporosis. Shikonin, a PKM2 inhibitor, was then identified as a potential drug candidate for the treatment of osteoporosis.
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Affiliation(s)
- Zilin Li
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Wang
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ruoyu Wang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhichao Zhang
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian Xiong
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyun Wang
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Ma
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Lizhi Han
- Department of Orthopedics, The First Affiliated Hospital of Bengbu Medical College, Anhui Key Laboratory of Tissue Transformation, Bengbu Medical College, Bengbu 233000, Anhui Province, China.
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Yang K, Zhu Y, Shao Y, Jiang Y, Zhu L, Liu Y, Zhang P, Liu Y, Zhang X, Zhou Y. Apoptotic Vesicles Derived from Dental Pulp Stem Cells Promote Bone Formation through the ERK1/2 Signaling Pathway. Biomedicines 2024; 12:730. [PMID: 38672086 PMCID: PMC11048106 DOI: 10.3390/biomedicines12040730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/12/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
Osteoporosis is a common degenerative bone disease. The treatment of osteoporosis remains a clinical challenge in light of the increasing aging population. Human dental pulp stem cells (DPSCs), a type of mesenchymal stem cells (MSCs), are easy to obtain and have a high proliferation ability, playing an important role in the treatment of osteoporosis. However, MSCs undergo apoptosis within a short time when used in vivo; therefore, apoptotic vesicles (apoVs) have attracted increasing attention. Currently, the osteogenic effect of DPSC-derived apoVs is unknown; therefore, this study aimed to determine the role of DPSC-derived apoVs and their potential mechanisms in bone regeneration. We found that MSCs could take up DPSC-derived apoVs, which then promoted MSC osteogenesis in vitro. Moreover, apoVs could increase the trabecular bone count and bone mineral density in the mouse osteoporosis model and could promote bone formation in rat cranial defects in vivo. Mechanistically, apoVs promoted MSC osteogenesis by activating the extracellular regulated kinase (ERK)1/2 signaling pathway. Consequently, we propose a novel therapy comprising DPSC-derived apoVs, representing a promising approach to treat bone loss and bone defects.
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Affiliation(s)
- Kunkun Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Yuan Zhu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Yuzi Shao
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Yuhe Jiang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Lei Zhu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Yaoshan Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Ping Zhang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Yunsong Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Xiao Zhang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China; (K.Y.); (Y.Z.); (Y.S.); (Y.J.); (L.Z.); (Y.L.); (P.Z.); (Y.L.)
- National Center of Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, No. 22, Zhongguancun South Avenue, Haidian District, Beijing 100081, China
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10
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Wang H, Ye J, Peng Y, Ma W, Chen H, Sun H, Feng Z, He W, Li G, Chu S, Zhang Z, Chen N. CKLF induces microglial activation via triggering defective mitophagy and mitochondrial dysfunction. Autophagy 2024; 20:590-613. [PMID: 37908119 PMCID: PMC10936627 DOI: 10.1080/15548627.2023.2276639] [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: 05/20/2023] [Accepted: 10/20/2023] [Indexed: 11/02/2023] Open
Abstract
Although microglial activation is induced by an increase in chemokines, the role of mitophagy in this process remains unclear. This study aimed to elucidate the role of microglial mitophagy in CKLF/CKLF1 (chemokine-like factor 1)-induced microglial activation and neuroinflammation, as well as the underlying molecular mechanisms following CKLF treatment. This study determined that CKLF, an inducible chemokine in the brain, leads to an increase in mitophagy markers, such as DNM1L, PINK1 (PTEN induced putative kinase 1), PRKN, and OPTN, along with a simultaneous increase in autophagosome formation, as evidenced by elevated levels of BECN1 and MAP1LC3B (microtubule-associated protein 1 light chain 3 beta)-II. However, SQSTM1, a substrate of autophagy, was also accumulated by CKLF treatment, suggesting that mitophagy flux was reduced and mitophagosomes accumulated. These findings were confirmed by transmission electron microscopy and confocal microscopy. The defective mitophagy observed in our study was caused by impaired lysosomal function, including mitophagosome-lysosome fusion, lysosome generation, and acidification, resulting in the accumulation of damaged mitochondria in microglial cells. Further analysis revealed that pharmacological blocking or gene-silencing of mitophagy inhibited CKLF-mediated microglial activation, as evidenced by the expression of the microglial marker AIF1 (allograft inflammatory factor 1) and the mRNA of proinflammatory cytokines (Tnf and Il6). Ultimately, defective mitophagy induced by CKLF results in microglial activation, as observed in the brains of adult mice. In summary, CKLF induces defective mitophagy, microglial activation, and inflammation, providing a potential approach for treating neuroinflammatory diseases.Abbreviation: 3-MA: 3-methyladenine; AIF1: allograft inflammatory factor 1; ANOVA: analysis of variance; BAF: bafilomycin A1; BSA: bovine serum albumin; CCCP: carbonyl cyanide m-chlorophenyl hydrazone; cGAMP: cyclic GMP-AMP; CGAS: cyclic GMP-AMP synthase; CKLF/CKLF1: chemokine-like factor 1; CNS: central nervous system; DMEM: Dulbecco's Modified Eagle Medium; DNM1L: dynamin 1 like; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; GFP: green fluorescence protein; IRF3: interferon regulatory factor 3; IgG: immunoglobulin G; LAMP1: lysosomal-associated membrane protein 1; LAPTM4A: lysosomal-associated protein transmembrane 4A; MAP1LC3B: microtubule-associated protein 1 light chain 3 beta; Mdivi-1: mitochondrial division inhibitor 1; mRFP: monomeric red fluorescent protein; mtDNA: mitochondrial DNA; MTORC1: mechanistic target of rapamycin kinase complex 1; OPTN: optineurin; PBS: phosphate-buffered saline; PCR: polymerase chain reaction; PINK1: PTEN induced putative kinase 1; PLL: poly-L-lysine; PRKN: parkin RBR E3 ubiquitin protein ligase; qPCR: quantitative polymerase chain reaction; ROS: reactive oxygen species; SQSTM1: sequestosome 1; TBK1: TANK-binding kinase 1; TFEB: transcription factor EB; VDAC: voltage-dependent anion channel.
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Affiliation(s)
- Hongyun Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Junrui Ye
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ye Peng
- School of Pharmacy, Minzu University of China, Beijing, China
| | - Wenyu Ma
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haodong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongshuo Sun
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Zhongping Feng
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Wenbin He
- National International Joint Research Center for Molecular Chinese Medicine, Shanxi University of Chinese Medicine, Shanxi, Taiyuan, China
| | - Gang Li
- Graduate school, Inner Mongolian Medical University, Hohhot, Inner Mongolia, China
| | - Shifeng Chu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhao Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Naihong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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11
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Jin J, Huang R, Chang Y, Yi X. Roles and mechanisms of optineurin in bone metabolism. Biomed Pharmacother 2024; 172:116258. [PMID: 38350370 DOI: 10.1016/j.biopha.2024.116258] [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: 12/03/2023] [Revised: 01/30/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024] Open
Abstract
Optineurin (OPTN) is a widely expressed multifunctional articulatory protein that participates in cellular or mitochondrial autophagy, vesicular transport, and endoplasmic reticulum (ER) stress via interactions with various proteins. Skeletal development is a complex biological process that requires the participation of various osteoblasts, such as bone marrow mesenchymal stem cells (BMSCs), and osteogenic, osteoclastic, and chondrogenic cells. OPTN was recently found to be involved in the regulation of osteoblast activity, which affects bone metabolism. OPTN inhibits osteoclastogenesis via signaling pathways, including NF-κB, IFN-β, and NRF2. OPTN can promote the differentiation of BMSCs toward osteogenesis and inhibit lipogenic differentiation by delaying BMSC senescence and autophagy. These effects are closely related to the development of bone metabolism disorders, such as Paget's disease of bone, rheumatoid arthritis, and osteoporosis. Therefore, this review aims to explore the role and mechanism of OPTN in the regulation of bone metabolism and related bone metabolic diseases. Our findings will provide new targets and strategies for the prevention and treatment of bone metabolic diseases.
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Affiliation(s)
- Junjie Jin
- School of Sports and Human Sciences, Shenyang Sport University, No. 36 Jinqiansong East Road, Sujiatun District, Shenyang, Liaoning 110115, China
| | - Ruiqi Huang
- School of Physical Education, Liaoning Normal University, Dalian 116029, China
| | - Yixing Chang
- Jilin University, No. 2699 Qianjin Street, Changchun, Jilin 130012, China
| | - Xuejie Yi
- Exercise and Health Research Center/Department of Kinesiology, Shenyang Sport University, No. 36 Jinqiansong East Road, Sujiatun District, Shenyang , Liaoning 110115, China.
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12
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Huo S, Tang X, Chen W, Gan D, Guo H, Yao Q, Liao R, Huang T, Wu J, Yang J, Xiao G, Han X. Epigenetic regulations of cellular senescence in osteoporosis. Ageing Res Rev 2024; 99:102235. [PMID: 38367814 DOI: 10.1016/j.arr.2024.102235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/27/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
Osteoporosis (OP) is a prevalent age-related disease that is characterized by a decrease in bone mineral density (BMD) and systemic bone microarchitectural disorders. With age, senescent cells accumulate and exhibit the senescence-associated secretory phenotype (SASP) in bone tissue, leading to the imbalance of bone homeostasis, osteopenia, changes in trabecular bone structure, and increased bone fragility. Cellular senescence in the bone microenvironment involves osteoblasts, osteoclasts, and bone marrow mesenchymal stem cells (BMSCs), whose effects on bone homeostasis are regulated by epigenetics. Therefore, the epigenetic regulatory mechanisms of cellular senescence have received considerable attention as potential targets for preventing and treating osteoporosis. In this paper, we systematically review the mechanisms of aging-associated epigenetic regulation in osteoporosis, emphasizing the impact of epigenetics on cellular senescence, and summarize three current methods of targeting cellular senescence, which is helpful better to understand the pathogenic mechanisms of cellular senescence in osteoporosis and provides strategies for the development of epigenetic drugs for the treatment of osteoporosis.
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Affiliation(s)
- Shaochuan Huo
- Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen 518000, China; Shenzhen Research Institute of Guangzhou University of Traditional Medicine (Futian), Shenzhen 518000, China
| | - Xinzheng Tang
- Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen 518000, China; Shenzhen Research Institute of Guangzhou University of Traditional Medicine (Futian), Shenzhen 518000, China
| | - Weijian Chen
- Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Donghao Gan
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hai Guo
- Liuzhou Traditional Chinese Medicine Hospital (Liuzhou Zhuang Medical Hospital), Liuzhou 545001, China
| | - Qing Yao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen 518055, China
| | - Rongdong Liao
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Tingting Huang
- Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Junxian Wu
- Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen 518000, China
| | - Junxing Yang
- Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen 518000, China; Shenzhen Research Institute of Guangzhou University of Traditional Medicine (Futian), Shenzhen 518000, China.
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Xia Han
- Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen 518000, China; Shenzhen Research Institute of Guangzhou University of Traditional Medicine (Futian), Shenzhen 518000, China.
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Chen W, Lu Y, Zhang Y, Wu J, McVicar A, Chen Y, Zhu S, Zhu G, Lu Y, Zhang J, McConnell M, Li YP. Cbfβ regulates Wnt/β-catenin, Hippo/Yap, and TGFβ signaling pathways in articular cartilage homeostasis and protects from ACLT surgery-induced osteoarthritis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.15.575763. [PMID: 38293189 PMCID: PMC10827176 DOI: 10.1101/2024.01.15.575763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
As the most common degenerative joint disease, osteoarthritis (OA) contributes significantly to pain and disability during aging. Several genes of interest involved in articular cartilage damage in OA have been identified. However, the direct causes of OA are poorly understood. Evaluating the public human RNA-seq dataset showed that Cbfβ, (subunit of a heterodimeric Cbfβ/Runx1,Runx2, or Runx3 complex) expression is decreased in the cartilage of patients with OA. Here, we found that the chondrocyte-specific deletion of Cbfβ in tamoxifen-induced Cbfβf/fCol2α1-CreERT mice caused a spontaneous OA phenotype, worn articular cartilage, increased inflammation, and osteophytes. RNA-sequencing analysis showed that Cbfβ deficiency in articular cartilage resulted in reduced cartilage regeneration, increased canonical Wnt signaling and inflammatory response, and decreased Hippo/YAP signaling and TGF-β signaling. Immunostaining and western blot validated these RNA-seq analysis results. ACLT surgery-induced OA decreased Cbfβ and Yap expression and increased active β-catenin expression in articular cartilage, while local AAV-mediated Cbfβ overexpression promoted Yap expression and diminished active β-catenin expression in OA lesions. Remarkably, AAV-mediated Cbfβ overexpression in knee joints of mice with OA showed the significant protective effect of Cbfβ on articular cartilage in the ACLT OA mouse model. Overall, this study, using loss-of-function and gain-of-function approaches, uncovered that low expression of Cbfβ may be the cause of OA. Moreover, Local admission of Cbfβ may rescue and protect OA through decreasing Wnt/β-catenin signaling, and increasing Hippo/Yap signaling and TGFβ/Smad2/3 signaling in OA articular cartilage, indicating that local Cbfβ overexpression could be an effective strategy for treatment of OA.
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Affiliation(s)
- Wei Chen
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Yun Lu
- Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Yan Zhang
- Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jinjin Wu
- Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Abigail McVicar
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Yilin Chen
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Siyu Zhu
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Guochun Zhu
- Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - You Lu
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Jiayang Zhang
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Matthew McConnell
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Yi-Ping Li
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, Louisiana, USA
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Nie J, Ma S, Zhang Y, Yu S, Yang J, Li A, Pei D. COPI Vesicle Disruption Inhibits Mineralization via mTORC1-Mediated Autophagy. Int J Mol Sci 2023; 25:339. [PMID: 38203512 PMCID: PMC10779376 DOI: 10.3390/ijms25010339] [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: 11/22/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Bone mineralization is a sophisticated regulated process composed of crystalline calcium phosphate and collagen fibril. Autophagy, an evolutionarily conserved degradation system, whereby double-membrane vesicles deliver intracellular macromolecules and organelles to lysosomes for degradation, has recently been shown to play an essential role in mineralization. However, the formation of autophagosomes in mineralization remains to be determined. Here, we show that Coat Protein Complex I (COPI), responsible for Golgi-to-ER transport, plays a pivotal role in autophagosome formation in mineralization. COPI vesicles were increased after osteoinduction, and COPI vesicle disruption impaired osteogenesis. Mechanistically, COPI regulates autophagy activity via the mTOR complex 1 (mTORC1) pathway, a key regulator of autophagy. Inhibition of mTOR1 rescues the impaired osteogenesis by activating autophagy. Collectively, our study highlights the functional importance of COPI in mineralization and identifies COPI as a potential therapeutic target for treating bone-related diseases.
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Affiliation(s)
| | | | | | | | | | | | - Dandan Pei
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China
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15
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Xu N, Cui G, Zhao S, Li Y, Liu Q, Liu X, Zhao C, Feng R, Kuang M, Han S. Therapeutic Effects of Mechanical Stress-Induced C2C12-Derived Exosomes on Glucocorticoid-Induced Osteoporosis Through miR-92a-3p/PTEN/AKT Signaling Pathway. Int J Nanomedicine 2023; 18:7583-7603. [PMID: 38106447 PMCID: PMC10725637 DOI: 10.2147/ijn.s435301] [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: 09/08/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023] Open
Abstract
Introduction Osteoporosis is a common bone disease in which the bone loses density and strength and is prone to fracture. Bone marrow mesenchymal stem cells (BMSCs) are important in bone-related diseases. Exosomes, as mediators of cell communication, have potential in cell processes. Previous studies have focused on muscle factors' regulation of bone remodeling, but research on exosomes is lacking. Methods In order to confirm the therapeutic effect of mechanically stimulated myocytes (C2C12) derived exosomes (Exosome-MS) on the Glucocorticoid-induced osteoporosis(GIOP) compared with unmechanically stimulated myocytes (C2C12) derived exosomes (Exosomes), we established a dexamethasone-induced osteoporosis model in vivo and in vitro. Cell viability and proliferation were assessed using CCK8 and EDU assays. Osteogenic potential was evaluated through Western blotting, real-time PCR, alkaline phosphatase activity assay, and alizarin red staining. Differential expression of miRNAs was determined by high-throughput sequencing. The regulatory mechanism of miR-92a-3p on cell proliferation and osteogenic differentiation via the PTEN/AKT pathway was investigated using real-time PCR, luciferase reporter gene assay, Western blotting, and immunofluorescence. The therapeutic effects of exosomes were evaluated in vivo using microCT, HE staining, Masson staining, and immunohistochemistry. Results In this study, we found that exosomes derived from mechanical stress had a positive impact on the proliferation and differentiation of bone marrow mesenchymal stem cells (BMSCs). Importantly, we demonstrated that miR-92a-3p mimics could reverse dexamethasone-induced osteoporosis in vitro and in vivo, indicating that mechanical stress-induced mouse myoblast-derived exosomes could promote osteogenesis and prevent the occurrence and progression of osteoporosis in mice through miR-92a-3p/PTEN/AKT signaling pathway. Conclusion Exosomes derived from mechanical stress-induced myoblasts can promote the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells through miR-92a-3p/PTEN/AKT signaling pathway, and can have a therapeutic effect on glucocorticoid-induced osteoporosis in mice in vivo.
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Affiliation(s)
- Ning Xu
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
| | - Guanzheng Cui
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
| | - Shengyin Zhao
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
| | - Yu Li
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
| | - Qian Liu
- Department of Pain, Qilu Hospital of Shandong University, Jinan, 250012, People’s Republic of China
| | - Xuchang Liu
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
| | - Chuanliang Zhao
- Department of Orthopedic Surgery, The Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, People’s Republic of China
| | - Rongjie Feng
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
| | - Mingjie Kuang
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
| | - Shijie Han
- Department of Orthopedic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong, 250014, People’s Republic of China
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Hu X, Foster BL, Zhao B, Tseng HC, Wu YC, Ko CC. Optineurin regulates osteoblast function in an age-dependent fashion in a mouse model of Paget's disease of bone. Bone 2023; 177:116929. [PMID: 37802379 PMCID: PMC10591808 DOI: 10.1016/j.bone.2023.116929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/17/2023] [Accepted: 10/03/2023] [Indexed: 10/09/2023]
Abstract
Paget's disease of bone (PDB) is a degenerative disorder affecting the skull and bones. Hyperactive osteoclasts (OCs) initiate bone degradation in the early stage, followed by increased bone formation by osteoblasts (OBs) in trabecular bones during the advanced stage. This OB-OC uncoupling results in bone deformations and irregular trabecular bone patterns. Current mouse models poorly replicate the advanced-stage characteristics of PDB. Optineurin (Gene: OPTN in humans, Optn in mice, protein: OPTN) has been implicated in PDB by genetic analyses. We identified PDB-like cortical lesions associated with OC hyperactivation in an Optn knockout (Optn-/-) mouse model. However, the effects of OPTN dysfunction on OBs and trabecular bone in advanced PDB remain unclear. In this study, we used the Optn-/- mouse model to investigate trabecular bone abnormalities and OB activity in PDB. Micro-computed tomography analysis revealed severe pagetic alterations in craniofacial bones and femurs of aged Optn-/- mice, resembling clinical manifestations of PDB. Altered OB activity was observed in aged Optn-/- mice, implicating compensatory OB response in trabecular bone anomalies. To elucidate the role of OC-OB interactions in PDB, we conducted in vitro experiments using OC conditioned media (CM) to examine the effects on OB osteogenic potential. We found OC CM restored compromised osteogenic induction of Optn-/- bone marrow stromal cells (BMSCs) from young mice, suggesting OCs maintain OB activity through secreted factors. Strikingly, OC CM from aged Optn-/- mice significantly enhanced osteogenic capability of Optn-/- BMSCs, providing evidence for increased OB activity in advanced stages of PDB. We further identified TGF-β/BMP signaling pathway in mediating the effects of OC CM on OBs. Our findings provide insights into Optn's role in trabecular bone abnormalities and OB activity in PDB. This enhances understanding of PDB pathogenesis and may contribute to potential therapeutic strategies for PDB and related skeletal disorders.
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Affiliation(s)
- Xiangxiang Hu
- Oral and Craniofacial Biomedicine Program, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH 43210, USA.
| | - Brian L Foster
- Division of Biosciences, The Ohio State University College of Dentistry, Columbus, OH 43210, USA
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021, USA; Department of Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10065, USA
| | - Henry C Tseng
- Duke Eye Center and Department of Ophthalmology, Duke University Medical Center, Durham, NC 27710, USA
| | - Yi-Chu Wu
- Division of Periodontology, The Ohio State University College of Dentistry, Columbus, OH 43210, USA
| | - Ching-Chang Ko
- Division of Orthodontics, The Ohio State University College of Dentistry, Columbus, OH 43210, USA.
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Zhang L, Guan Q, Wang Z, Feng J, Zou J, Gao B. Consequences of Aging on Bone. Aging Dis 2023:AD.2023.1115. [PMID: 38029404 DOI: 10.14336/ad.2023.1115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023] Open
Abstract
With the aging of the global population, the incidence of musculoskeletal diseases has been increasing, seriously affecting people's health. As people age, the microenvironment within skeleton favors bone resorption and inhibits bone formation, accompanied by bone marrow fat accumulation and multiple cellular senescence. Specifically, skeletal stem/stromal cells (SSCs) during aging tend to undergo adipogenesis rather than osteogenesis. Meanwhile, osteoblasts, as well as osteocytes, showed increased apoptosis, decreased quantity, and multiple functional limitations including impaired mechanical sensing, intercellular modulation, and exosome secretion. Also, the bone resorption function of macrophage-lineage cells (including osteoclasts and preosteoclasts) was significantly enhanced, as well as impaired vascularization and innervation. In this study, we systematically reviewed the effect of aging on bone and the within microenvironment (including skeletal cells as well as their intracellular structure variations, vascular structures, innervation, marrow fat distribution, and lymphatic system) caused by aging, and mechanisms of osteoimmune regulation of the bone environment in the aging state, and the causal relationship with multiple musculoskeletal diseases in addition with their potential therapeutic strategy.
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Affiliation(s)
- Lingli Zhang
- College of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Qiao Guan
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Zhikun Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Jie Feng
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Jun Zou
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Bo Gao
- Department of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi'an, China
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18
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Chen Q, Yang Z, Sun X, Long R, Shen J, Wang Z. Inokosterone activates the BMP2 to promote the osteogenic differentiation of bone marrow mesenchymal stem cells and improve bone loss in ovariectomized rats. Biochem Biophys Res Commun 2023; 682:349-358. [PMID: 37839103 DOI: 10.1016/j.bbrc.2023.10.032] [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: 07/21/2023] [Revised: 09/21/2023] [Accepted: 10/08/2023] [Indexed: 10/17/2023]
Abstract
Evidence suggests that enhancing the osteogenic ability of bone marrow-derived mesenchymal stem cells (BMSCs) may be beneficial in the fight against osteoporosis (OP) effects. Inokosterone (IS) is a major active constituent of Achyranthis bidentatae radix (ABR), which stimulates osteogenic differentiation of mouse embryonic osteoblasts. This study aims to investigate effect of IS on OP using osteogenic differentiated BMSCs and ovariectomy (OVX)-induced OP rats. The BMSCs were treated with 50, 100, or 200 mg/L IS and OP rats were given 2 or 4 mg/kg of IS by gavage. Cell viability, the osteogenic differentiation marker protein expression level, and mineralization were observed. This study proved that IS improved cell viability, osteogenic differentiation, and cellular mineralization in BMSCs and raised expression levels of bone morphogenetic protein-2 (BMP2), Smad1, runt-related transcription factor 2 (RUNX2), collagen I, ALP, and OCN. By BMP2 knockdown/overexpression, this study also proved the BMP2 signaling pathway activation is a potential biological mechanism of IS to improve osteogenic differentiation and mineralization in osteogenic differentiated BMSCs. In OVX-induced OP rats, IS was observed to antagonize bone loss, improve osteogenic differentiation marker protein expression levels, and activate BMP-2, smad1, and RUNX2. These findings provide scientific support for further investigation of the biological mechanisms of IS in ameliorating OP.
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Affiliation(s)
- Qiang Chen
- Department of Orthopedics, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, 311200, China
| | - Zhihua Yang
- Department of Orthopedics, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, 311200, China
| | - Xiangyi Sun
- Department of Orthopedics, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, 311200, China
| | - Ruchao Long
- Department of Orthopedics, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, 311200, China
| | - Jianwei Shen
- Department of Orthopedics, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, 311200, China
| | - Zhen Wang
- Department of Orthopedics, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou, 311200, China.
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19
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He ZH, Zou JT, Chen X, Gong JS, Chen Y, Jin L, Liu YW, Rao SS, Yin H, Tan YJ, Wang Z, Du W, Li HM, Qian YX, Wang ZX, Wang YY, Wan TF, Luo Y, Zhu H, Chen CY, Xie H. Ångstrom-scale silver particles ameliorate collagen-induced and K/BxN-transfer arthritis in mice via the suppression of inflammation and osteoclastogenesis. Inflamm Res 2023; 72:2053-2072. [PMID: 37816881 DOI: 10.1007/s00011-023-01778-0] [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: 05/04/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 10/12/2023] Open
Abstract
OBJECTIVE Nanoparticles (NPs) hold a great promise in combating rheumatoid arthritis, but are often compromised by their toxicities because the currently used NPs are usually synthesized by chemical methods. Our group has previously fabricated Ångstrom-scale silver particles (AgÅPs) and demonstrated the anti-tumor and anti-sepsis efficacy of fructose-coated AgÅPs (F-AgÅPs). This study aimed to uncover the efficacy and mechanisms of F-AgÅPs for arthritis therapy. METHODS We evaluated the efficacy of F-AgÅPs in collagen-induced arthritis (CIA) mice. We also compared the capacities of F-AgÅPs, the commercial AgNPs, and the clinical drug methotrexate (MTX) in protecting against K/BxN serum-transfer arthritis (STA) mice. Moreover, we evaluated the effects of F-AgÅPs and AgNPs on inflammation, osteoclast formation, synoviocytes migration, and matrix metalloproteinases (MMPs) production in vitro and in vivo. Meanwhile, the toxicities of F-AgÅPs and AgNPs in vitro and in vivo were also tested. RESULTS F-AgÅPs significantly prevented bone erosion, synovitis, and cartilage damage, attenuated rheumatic pain, and improved the impaired motor function in mouse models of CIA or STA, the anti-rheumatic effects of which were comparable or stronger than AgNPs and MTX. Further studies revealed that F-AgÅPs exhibited similar or greater inhibitory abilities than AgNPs to suppress inflammation, osteoclast formation, synoviocytes migration, and MMPs production. No obvious toxicities were observed in vitro and in vivo after F-AgÅPs treatment. CONCLUSIONS F-AgÅPs can effectively alleviate arthritis without notable toxicities and their anti-arthritic effects are associated with the inhibition of inflammation, osteoclastogenesis, synoviocytes migration, and MMPs production. Our study suggests the prospect of F-AgÅPs as an efficient and low-toxicity agent for arthritis therapy.
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Affiliation(s)
- Ze-Hui He
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Jing-Tao Zou
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Xia Chen
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiang-Shan Gong
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Ya Chen
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Ling Jin
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Yi-Wei Liu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Shan-Shan Rao
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hao Yin
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Yi-Juan Tan
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Zun Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Xiangya School of Nursing, Central South University, Changsha, Hunan, China
| | - Wei Du
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Rehabilitation, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Hong-Ming Li
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Yu-Xuan Qian
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Zhen-Xing Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yi-Yi Wang
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Teng-Fei Wan
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Yi Luo
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Hao Zhu
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China
- Angmedicine Research Center, Central south university, Changsha, China
| | - Chun-Yuan Chen
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China.
- Angmedicine Research Center, Central south university, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Hui Xie
- Department of Orthopedics, Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- Hunan Key Laboratory of Angmedicine, Changsha, Hunan, China.
- Angmedicine Research Center, Central south university, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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20
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Jiang X, Li W, Ge L, Lu M. Mesenchymal Stem Cell Senescence during Aging:From Mechanisms to Rejuvenation Strategies. Aging Dis 2023; 14:1651-1676. [PMID: 37196126 PMCID: PMC10529739 DOI: 10.14336/ad.2023.0208] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/08/2023] [Indexed: 05/19/2023] Open
Abstract
In cell transplantation therapy, mesenchymal stem cells(MSCs)are ideal seed cells due to their easy acquisition and cultivation, strong regenerative capacity, multi-directional differentiation abilities, and immunomodulatory effects. Autologous MSCs are better applicable compared with allogeneic MSCs in clinical practice. The elderly are the main population for cell transplantation therapy, but as donor aging, MSCs in the tissue show aging-related changes. When the number of generations of in vitro expansion is increased, MSCs will also exhibit replicative senescence. The quantity and quality of MSCs decline during aging, which limits the efficacy of autologous MSCs transplantation therapy. In this review, we examine the changes in MSC senescence as a result of aging, discuss the progress of research on mechanisms and signalling pathways of MSC senescence, and discuss possible rejuvenation strategies of aged MSCs to combat senescence and enhance the health and therapeutic potential of MSCs.
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Affiliation(s)
- Xinchen Jiang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, China.
- Hunan provincical key laboratory of Neurorestoratology, the Second Affiliated Hospital, Hunan Normal University, Changsha, China.
| | - Wenshui Li
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, China.
- Hunan provincical key laboratory of Neurorestoratology, the Second Affiliated Hospital, Hunan Normal University, Changsha, China.
| | - Lite Ge
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, China.
- Hunan provincical key laboratory of Neurorestoratology, the Second Affiliated Hospital, Hunan Normal University, Changsha, China.
- Department of Neurology, Second Xiangya Hospital, Central South University, Changsha, 410011, China, Changsha
| | - Ming Lu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, China.
- Hunan provincical key laboratory of Neurorestoratology, the Second Affiliated Hospital, Hunan Normal University, Changsha, China.
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21
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Riegger J, Schoppa A, Ruths L, Haffner-Luntzer M, Ignatius A. Oxidative stress as a key modulator of cell fate decision in osteoarthritis and osteoporosis: a narrative review. Cell Mol Biol Lett 2023; 28:76. [PMID: 37777764 PMCID: PMC10541721 DOI: 10.1186/s11658-023-00489-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/11/2023] [Indexed: 10/02/2023] Open
Abstract
During aging and after traumatic injuries, cartilage and bone cells are exposed to various pathophysiologic mediators, including reactive oxygen species (ROS), damage-associated molecular patterns, and proinflammatory cytokines. This detrimental environment triggers cellular stress and subsequent dysfunction, which not only contributes to the development of associated diseases, that is, osteoporosis and osteoarthritis, but also impairs regenerative processes. To counter ROS-mediated stress and reduce the overall tissue damage, cells possess diverse defense mechanisms. However, cellular antioxidative capacities are limited and thus ROS accumulation can lead to aberrant cell fate decisions, which have adverse effects on cartilage and bone homeostasis. In this narrative review, we address oxidative stress as a major driver of pathophysiologic processes in cartilage and bone, including senescence, misdirected differentiation, cell death, mitochondrial dysfunction, and impaired mitophagy by illustrating the consequences on tissue homeostasis and regeneration. Moreover, we elaborate cellular defense mechanisms, with a particular focus on oxidative stress response and mitophagy, and briefly discuss respective therapeutic strategies to improve cell and tissue protection.
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Affiliation(s)
- Jana Riegger
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University Medical Center, 89081, Ulm, Germany.
| | - Astrid Schoppa
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Leonie Ruths
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Melanie Haffner-Luntzer
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
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22
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Verma J, Rai AK, Satija NK. Autophagy perturbation upon acute pyrethroid treatment impacts adipogenic commitment of mesenchymal stem cells. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 195:105566. [PMID: 37666621 DOI: 10.1016/j.pestbp.2023.105566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 07/25/2023] [Accepted: 08/02/2023] [Indexed: 09/06/2023]
Abstract
Environmental chemical exposure can cause dysregulation in adipogenesis that can result in metabolic syndrome, which includes insulin resistance, type 2 diabetes, cardiovascular disease, as well as excessive body weight. The role of autophagy in adipocyte differentiation is debatable since both positive and negative effects have been reported. Type-I and type-II synthetic pyrethroids α-cypermethrin (CPM) and permethrin (PER), respectively, are reported to increase adipogenesis in vitro and in vivo. However, it is not known how these pyrethroids affect mesenchymal stem cells (MSCs). Thus, this study focused on evaluating the effect of pyrethroids (CPM and PER) pre-treatment (24 h) on MSC commitment and the regulatory role of autophagy in adipogenic lineage commitment. The formation of adipocytes was observed through nile red staining, perilipin expression by immunoflourescence, and adipogenic markers PPARγ, C/EBPα, and FABP4 by western blotting. It was found that the adipogenic differentiation ability of MSCs was significantly increased upon CPM or PER pre-treatment at 100 μM concentration as evident by lipid accumulation and enhanced expression of adipogenic markers. To assess the involvement of autophagy, the expression of p62 and LC3II were evaluated following pre-treatment. Immunoblotting results revealed an increased expression of p62 and LC3II in CPM or PER pretreated MSCs suggesting CPM and PER mediated inhibition of autophagy at 24 h. Further, an increase was observed in adipogenesis upon CPM or PER pre-treatment in combination with chloroquine, while use of rapamycin during pre-treatment abrogated the effect of CPM and PER. Thus, this study concludes that CPM or PER pre-treatment increases the adipogenic differentiation of MSCs. Since chloroquine also demonstrated similar adipogenic response, it further highlights that 24 h pre-treatment with autophagy modulators to inhibit basal autophagy primes MSCs towards adipogenic lineage.
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Affiliation(s)
- Julee Verma
- Systems Toxicology Group, Food, Drug & Chemical, Environment and Systems Toxicology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ajit Kumar Rai
- Systems Toxicology Group, Food, Drug & Chemical, Environment and Systems Toxicology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Neeraj Kumar Satija
- Systems Toxicology Group, Food, Drug & Chemical, Environment and Systems Toxicology Division, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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23
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Yang X, Wang Y, Rovella V, Candi E, Jia W, Bernassola F, Bove P, Piacentini M, Scimeca M, Sica G, Tisone G, Mauriello A, Wei L, Melino G, Shi Y. Aged mesenchymal stem cells and inflammation: from pathology to potential therapeutic strategies. Biol Direct 2023; 18:40. [PMID: 37464416 PMCID: PMC10353240 DOI: 10.1186/s13062-023-00394-6] [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: 06/17/2023] [Accepted: 06/27/2023] [Indexed: 07/20/2023] Open
Abstract
Natural ageing of organisms and corresponding age-related diseases result mainly from stem cell ageing and "inflammaging". Mesenchymal stem cells (MSCs) exhibit very high immune-regulating capacity and are promising candidates for immune-related disease treatment. However, the effect of MSC application is not satisfactory for some patients, especially in elderly individuals. With ageing, MSCs undergo many changes, including altered cell population reduction and differentiation ability, reduced migratory and homing capacity and, most important, defective immunosuppression. It is necessary to explore the relationship between the "inflammaging" and aged MSCs to prevent age-related diseases and increase the therapeutic effects of MSCs. In this review, we discuss changes in naturally ageing MSCs mainly from an inflammation perspective and propose some ideas for rejuvenating aged MSCs in future treatments.
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Affiliation(s)
- Xue Yang
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
- The Third Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, Jiangsu China
| | - Ying Wang
- The Third Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, Jiangsu China
| | - Valentina Rovella
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Eleonora Candi
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Wei Jia
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233 China
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong China
| | - Francesca Bernassola
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Pierluigi Bove
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Mauro Piacentini
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Manuel Scimeca
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Giuseppe Sica
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Giuseppe Tisone
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Alessandro Mauriello
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Lixin Wei
- Department of Tumor Immunology and Gene Therapy Center, Third Affiliated Hospital of Naval Medical University, Shanghai, 200438 China
| | - Gerry Melino
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133 Italy
| | - Yufang Shi
- The Third Affiliated Hospital of Soochow University, Institutes for Translational Medicine, State Key Laboratory of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, Jiangsu China
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Luo F, Xie Y, Chen H, Huang J, Li C, Chen L, Yang J, Su N. Fgfr1 deficiency in osteocytes leads to increased bone mass by enhancing Wnt/β-catenin signaling. Bone 2023:116817. [PMID: 37268269 DOI: 10.1016/j.bone.2023.116817] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/04/2023]
Abstract
Osteoporosis (OP) is the most common skeletal disease in middle-aged and elderly people. A comprehensive understanding of the pathogenesis of osteoporosis is important. Fibroblast growth factor receptor 1 (FGFR1) is an important molecule for skeletal development and bone remodeling. Osteocytes are the most numerous cells in bone and play critical roles in bone homeostasis, however the effect of FGFR1 on osteocytes is still unclear. To clarify the direct effects of FGFR1 on osteocytes, we conditionally deleted Fgfr1 in osteocytes with Dentin matrix protein 1 (Dmp1)-Cre. We found that mice lacking Fgfr1 in osteocytes (Fgfr1f/f;Dmp-cre, MUT) showed increased trabecular bone mass at 2 and 6 months of age, which resulted from enhanced bone formation and decreased bone resorption. Furthermore, the cortical bone was thicker in WT mice than that in MUT mice at 2 and 6 months of age. Histological analysis showed that MUT mice had a decreased number of osteocytes but an increased number of osteocyte dendrites. We further found that mice lacking Fgfr1 in osteocytes showed enhanced activation of β-catenin signaling. The expression of sclerostin, an inhibitor of Wnt/β-catenin signaling, was obviously decreased in MUT mice. Furthermore, we found that FGFR1 can inhibit the expression of β-catenin and decrease the activity of β-catenin signaling. In brief, our study showed that FGFR1 in osteocytes can regulate bone mass by regulating Wnt/β-catenin signaling, providing genetic evidence that FGFR1 plays essential roles in osteocytes during bone remodeling and suggesting that FGFR1 is a potential therapeutic target for the prevention of bone loss.
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Affiliation(s)
- Fengtao Luo
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China; Emergency Department of the 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu, PR China
| | - Yangli Xie
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China
| | - Hangang Chen
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China
| | - Junlan Huang
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China
| | - Can Li
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China
| | - Lin Chen
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China.
| | - Jing Yang
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China.
| | - Nan Su
- Center of Bone Metabolism and Repair, Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, PR China.
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25
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Sagar S, Faizan MI, Chaudhary N, Singh V, Singh P, Gheware A, Sharma K, Azmi I, Singh VP, Kharya G, Mabalirajan U, Agrawal A, Ahmad T, Sinha Roy S. Obesity impairs cardiolipin-dependent mitophagy and therapeutic intercellular mitochondrial transfer ability of mesenchymal stem cells. Cell Death Dis 2023; 14:324. [PMID: 37173333 PMCID: PMC10181927 DOI: 10.1038/s41419-023-05810-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 05/15/2023]
Abstract
Mesenchymal stem cell (MSC) transplantation alleviates metabolic defects in diseased recipient cells by intercellular mitochondrial transport (IMT). However, the effect of host metabolic conditions on IMT and thereby on the therapeutic efficacy of MSCs has largely remained unexplored. Here we found impaired mitophagy, and reduced IMT in MSCs derived from high-fat diet (HFD)-induced obese mouse (MSC-Ob). MSC-Ob failed to sequester their damaged mitochondria into LC3-dependent autophagosomes due to decrease in mitochondrial cardiolipin content, which we propose as a putative mitophagy receptor for LC3 in MSCs. Functionally, MSC-Ob exhibited diminished potential to rescue mitochondrial dysfunction and cell death in stress-induced airway epithelial cells. Pharmacological modulation of MSCs enhanced cardiolipin-dependent mitophagy and restored their IMT ability to airway epithelial cells. Therapeutically, these modulated MSCs attenuated features of allergic airway inflammation (AAI) in two independent mouse models by restoring healthy IMT. However, unmodulated MSC-Ob failed to do so. Notably, in human (h)MSCs, induced metabolic stress associated impaired cardiolipin-dependent mitophagy was restored upon pharmacological modulation. In summary, we have provided the first comprehensive molecular understanding of impaired mitophagy in obese-derived MSCs and highlight the importance of pharmacological modulation of these cells for therapeutic intervention. A MSCs obtained from (HFD)-induced obese mice (MSC-Ob) show underlying mitochondrial dysfunction with a concomitant decrease in cardiolipin content. These changes prevent LC3-cardiolipin interaction, thereby reducing dysfunctional mitochondria sequestration into LC3-autophagosomes and thus impaired mitophagy. The impaired mitophagy is associated with reduced intercellular mitochondrial transport (IMT) via tunneling nanotubes (TNTs) between MSC-Ob and epithelial cells in co-culture or in vivo. B Pyrroloquinoline quinone (PQQ) modulation in MSC-Ob restores mitochondrial health, cardiolipin content, and thereby sequestration of depolarized mitochondria into the autophagosomes to alleviate impaired mitophagy. Concomitantly, MSC-Ob shows restoration of mitochondrial health upon PQQ treatment (MSC-ObPQQ). During co-culture with epithelial cells or transplantation in vivo into the mice lungs, MSC-ObPQQ restores IMT and prevents epithelial cell death. C Upon transplantation in two independent allergic airway inflammatory mouse models, MSC-Ob failed to rescue the airway inflammation, hyperactivity, metabolic changes in epithelial cells. D PQQ modulated MSCs restored these metabolic defects and restored lung physiology and airway remodeling parameters.
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Affiliation(s)
- Shakti Sagar
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Md Imam Faizan
- Multidisciplinary Center for Advanced Research and Studies, Jamia Millia Islamia, New Delhi, 110025, India
| | - Nisha Chaudhary
- Multidisciplinary Center for Advanced Research and Studies, Jamia Millia Islamia, New Delhi, 110025, India
| | - Vandana Singh
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Praveen Singh
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Atish Gheware
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Khushboo Sharma
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110007, India
| | - Iqbal Azmi
- Multidisciplinary Center for Advanced Research and Studies, Jamia Millia Islamia, New Delhi, 110025, India
| | - Vijay Pal Singh
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110007, India
| | - Gaurav Kharya
- Center for Bone Marrow Transplantation & Cellular Therapy Indraprastha Apollo Hospital, New Delhi, 110076, India
| | | | - Anurag Agrawal
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Tanveer Ahmad
- Multidisciplinary Center for Advanced Research and Studies, Jamia Millia Islamia, New Delhi, 110025, India.
| | - Soumya Sinha Roy
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, 110007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Feixiang L, Yanchen F, Xiang L, Yunke Z, Jinxin M, Jianru W, Zixuan L. The mechanism of oxytocin and its receptors in regulating cells in bone metabolism. Front Pharmacol 2023; 14:1171732. [PMID: 37229246 PMCID: PMC10203168 DOI: 10.3389/fphar.2023.1171732] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/20/2023] [Indexed: 05/27/2023] Open
Abstract
Oxytocin (OT) is a neuropeptide known to affect social behavior and cognition. The epigenetic modification of the oxytocin receptor (OTR) via DNA methylation stimulates parturition and breast milk secretion and inhibits craniopharyngioma, breast cancer, and ovarian cancer growth significantly as well as directly regulates bone metabolism in their peripheral form rather than the central form. OT and OTR can be expressed on bone marrow mesenchymal stem cells (BMSCs), osteoblasts (OB), osteoclasts (OC), osteocytes, chondrocytes, and adipocytes. OB can synthesize OT under the stimulation of estrogen as a paracrine-autocrine regulator for bone formation. OT/OTR, estrogen, and OB form a feed-forward loop through estrogen mediation. The osteoclastogenesis inhibitory factor (OPG)/receptor activator of the nuclear factor kappa-B ligand (RANKL) signaling pathway is crucially required for OT and OTR to exert anti-osteoporosis effect. Downregulating the expression of bone resorption markers and upregulating the expression of the bone morphogenetic protein, OT could increase BMSC activity and promote OB differentiation instead of adipocytes. It could also stimulate the mineralization of OB by motivating OTR translocation into the OB nucleus. Moreover, by inducing intracytoplasmic Ca2+ release and nitric oxide synthesis, OT could regulate the OPG/RANKL ratio in OB and exert a bidirectional regulatory effect on OC. Furthermore, OT could increase the activity of osteocytes and chondrocytes, which helps increase bone mass and improve bone microstructure. This paper reviews recent studies on the role of OT and OTR in regulating cells in bone metabolism as a reference for their clinical use and research based on their reliable anti-osteoporosis effects.
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Affiliation(s)
- Liu Feixiang
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Feng Yanchen
- Traditional Chinese Medicine (Zhong Jing) School, Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Li Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Hangzhou, China
| | - Zhang Yunke
- School of Rehabilitation Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Miao Jinxin
- Research and Experiment Center, Henan University of Chinese Medicine, Zhengzhou, China
| | - Wang Jianru
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Lin Zixuan
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
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Ye P, Feng L, Zhang D, Li R, Wen Y, Tong X, Shi S, Dong C. Metformin Ameliorates D-Galactose-Induced Senescent Human Bone Marrow-Derived Mesenchymal Stem Cells by Enhancing Autophagy. Stem Cells Int 2023; 2023:1429642. [PMID: 37035446 PMCID: PMC10079386 DOI: 10.1155/2023/1429642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/16/2023] [Accepted: 03/11/2023] [Indexed: 04/04/2023] Open
Abstract
Human bone marrow-derived mesenchymal stem cells (hBMSCs) are promising candidates for stem cell therapy in clinical trials. Applications of hBMSCs in clinical therapy are limited by cellular senescence due to long-term ex vivo expansion. Metformin, an oral hypoglycemic drug for type 2 diabetes, has been shown to have antiaging effects. However, the mechanisms of metformin in antiaging treatment remain controversial. Here, we used D-galactose (D-gal) to establish an appropriate model of senescent hBMSCs to explore the antiaging effects of metformin. Following metformin treatment with a low concentration range, senescence phenotypes induced by D-gal significantly changed, including generation of reactive oxygen species (ROS), loss of mitochondrial membrane potential (MMP), and cell cycle arrest. In contrast, no apparent change was found in unsenescent hBMSCs. Furthermore, the results show that activation of 5
AMP-activated protein kinase (AMPK) by metformin enhances cell autophagy in senescent hBMSCs. These findings suggest that metformin exerts antiaging function within the low concentration range by enhancing autophagy and exhibits potential benefits for clinical stem cell therapy by ameliorating the ex vivo replicative senescence of hBMSCs.
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Affiliation(s)
- Pingting Ye
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
| | - Lei Feng
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
| | - Dan Zhang
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
| | - Ruihao Li
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
| | - Yixuan Wen
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
| | - Xiaohan Tong
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
| | - Shuo Shi
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
| | - Chunyan Dong
- Department of Oncology, Shanghai East Hospital, School of Medicine, Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200120, China
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Duan R, Hong CG, Chen ML, Wang X, Pang ZL, Xie H, Liu ZZ. Targeting autophagy receptors OPTN and SQSTM1 as a novel therapeutic strategy for osteoporosis complicated with Alzheimer's disease. Chem Biol Interact 2023; 377:110462. [PMID: 36958424 DOI: 10.1016/j.cbi.2023.110462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/16/2023] [Accepted: 03/19/2023] [Indexed: 03/25/2023]
Abstract
Alzheimer's disease (AD) is a common degenerative disease among the elderly population. In addition to cognitive impairment, AD is often accompanied by behavioral manifestations. However, little attention has been paid to changes in bone metabolism and related mechanisms in patients with AD. We found that AD mice (APPswe/PS1dE9) had reduced bone density, weakened bone strength, and amyloid beta (Aβ) deposition in the bone tissue. It was further found that targeting autophagy receptors Optineurin (OPTN) and Sequestosome 1 (SQSTM1) increased bone density and bone strength in AD mice, promoted the clearance of Aβ in the bone tissue, and maintained bone homeostasis. Our study suggests that abnormal Aβ deposition may be the co-pathogenesis of AD and osteoporosis (OP). Targeting OPTN and SQSTM1 has a dual-functional effect of alleviating both AD and OP through selective autophagy that specifically targets Aβ for clearance. Therapeutic strategies targeting autophagy may help guide the treatment of patients with AD complicated with OP.
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Affiliation(s)
- Ran Duan
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Chun-Gu Hong
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Meng-Lu Chen
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xin Wang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Zhi-Lin Pang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Hui Xie
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
| | - Zheng-Zhao Liu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
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29
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Che L, Zhu C, Huang L, Xu H, Ma X, Luo X, He H, Zhang T, Wang N. Ginsenoside Rg2 Promotes the Proliferation and Stemness Maintenance of Porcine Mesenchymal Stem Cells through Autophagy Induction. Foods 2023; 12:foods12051075. [PMID: 36900592 PMCID: PMC10000966 DOI: 10.3390/foods12051075] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) can be used as a cell source for cultivated meat production due to their adipose differentiation potential, but MSCs lose their stemness and undergo replicative senescence during expansion in vitro. Autophagy is an important mechanism for senescent cells to remove toxic substances. However, the role of autophagy in the replicative senescence of MSCs is controversial. Here, we evaluated the changes in autophagy in porcine MSCs (pMSCs) during long-term culture in vitro and identified a natural phytochemical, ginsenoside Rg2, that could stimulate pMSC proliferation. First, some typical senescence characteristics were observed in aged pMSCs, including decreased EdU-positive cells, increased senescence-associated beta-galactosidase activity, declined stemness-associated marker OCT4 expression, and enhanced P53 expression. Importantly, autophagic flux was impaired in aged pMSCs, suggesting deficient substrate clearance in aged pMSCs. Rg2 was found to promote the proliferation of pMSCs using MTT assay and EdU staining. In addition, Rg2 inhibited D-galactose-induced senescence and oxidative stress in pMSCs. Rg2 increased autophagic activity via the AMPK signaling pathway. Furthermore, long-term culture with Rg2 promoted the proliferation, inhibited the replicative senescence, and maintained the stemness of pMSCs. These results provide a potential strategy for porcine MSC expansion in vitro.
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Affiliation(s)
- Lina Che
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Caixia Zhu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Lei Huang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Hui Xu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Xinmiao Ma
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Xuegang Luo
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Hongpeng He
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Tongcun Zhang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
| | - Nan Wang
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China
- Correspondence: ; Tel.: +86-2260-6020-99; Fax: +86-2260-6022-98
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Bai H, Fang Y, Cao H, Xing C, Zhang C, Zhuang Y, Guo X, Li G, Hu M, Hu G, Yang F. Inhibition of the BNIP3/NIX-dependent mitophagy aggravates copper-induced mitochondrial dysfunction in duck renal tubular epithelial cells. ENVIRONMENTAL TOXICOLOGY 2023; 38:579-590. [PMID: 36378575 DOI: 10.1002/tox.23704] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
The accumulation of copper (Cu) in the organisms could lead to kidney damage by causing mitochondrial dysfunction. Given that mitochondria are one of the targets of Cu poisoning, this study aimed to investigate the role of mitophagy in Cu-induced mitochondrial dysfunction in renal tubular epithelial cells to understand the mechanism of Cu nephrotoxicity. Hence, the cells were treated with different concentrations of Cu sulfate (CuSO4 ) (0, 100, and 200 μM), and mitophagy inhibitor (Cyclosporine A, 0.5 μM) and/or 200 μM CuSO4 in the combination for 12 h. Results showed that Cu caused mitochondrial swelling, vacuoles, and cristae fracture; increased the number of mitochondrial and lysosome fluorescent aggregation points; upregulated the mRNA levels of mitophagy-associated genes (LC3A, LC3B, P62, BNIP3, NIX, OPTN, NDP52, Cyp D LAMP1, and LAMP2) and protein levels of LC3II/LC3I, BNIP3, and NIX, downregulated the mRNA and protein levels of P62; reduced the mitochondrial membrane potential (MMP), ATP content, mitochondrial respiratory control rate (RCR), mitochondrial respiratory control rate (OPR), and the mRNA and protein levels of PGC-1α, TOMM20, and Mfn2, but increased the mRNA and protein levels of Drp1. Besides, cotreatment with Cu and CsA dramatically decreased the level of mitophagy, but increased mitochondrial division, further reduced MMP, ATP content, RCR, and OPR, mitochondrial fusion and thereby reduced mitochondrial biogenesis. Taken together, these data indicated that Cu exposure induced BNIP3/NIX-dependent mitophagy in duck renal tubular epithelial cells, and inhibition of mitophagy aggravated Cu-induced mitochondrial dysfunction.
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Affiliation(s)
- He Bai
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, People's Republic of China
| | - Yukun Fang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
- School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Huabin Cao
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Chenghong Xing
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Caiying Zhang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Yu Zhuang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Xiaoquan Guo
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Guyue Li
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Mingwen Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Guoliang Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
| | - Fan Yang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, People's Republic of China
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Gu H, Wei J. Peiminine regulates bone-fat balance by canonical Wnt/β-catenin pathway in an ovariectomized rat model. Phytother Res 2023. [PMID: 36799485 DOI: 10.1002/ptr.7780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 11/19/2022] [Accepted: 01/29/2023] [Indexed: 02/18/2023]
Abstract
Peiminine is a major biologically active component of Fritillaria thunbergii Miq that exhibits good anticancer, antiinflammatory, and anti-osteoclast effects. However, its effects on osteoporosis (OP) remain unknown. This study aimed to explore whether Peiminine was able to regulate osteogenesis and adipogenesis in ovariectomized (OVX) rat. The effects on the differentiation of bone marrow stem cells (BMSCs), function of Wnt/β-catenin pathway, ALP activity, calcium nodule deposition, as well as adipocyte formation in vitro by Peiminine at different concentrations, were detected. The curative effects of Peiminine on the ovariectomy-induced osteoporosis model by micro-CT and bone histomorphology assays were analyzed. The promotion of osteogenic differentiation and inhibition of adipogenic differentiation by Peiminine (5-40 μg/mL) was detected and the optimum concentration was 20 μg/mL. Mechanistically, Peiminine regulated the fate of BMSCs in vitro, and activated Wnt/β-catenin signaling pathway by restraining phosphorylation of β-catenin and promoting the nuclear translocation of β-catenin. Moreover, Peiminine prevented ovariectomy-induced osteoporosis by alleviating trabecular bone loss and inhibiting adipose formation. Our data suggested that Peiminine could attenuate ovariectomy-induced osteoporosis by alleviating trabecular bone loss and inhibiting adipose formation. These encouraging discoveries could lay the foundation for Peiminine to be a promising preventive treatment strategy for skeletal diseases, such as osteoporosis.
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Affiliation(s)
- Hanwen Gu
- Department of Joint Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jian Wei
- Department of Joint Orthopedics, Liuzhou People's Hospital affiliated to Guangxi Medical University, Liuzhou, China
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Li L, Wang B, Zhou X, Ding H, Sun C, Wang Y, Zhang F, Zhao J. METTL3-mediated long non-coding RNA MIR99AHG methylation targets miR-4660 to promote bone marrow mesenchymal stem cell osteogenic differentiation. Cell Cycle 2023; 22:476-493. [PMID: 36369887 PMCID: PMC9879177 DOI: 10.1080/15384101.2022.2125751] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/15/2022] [Accepted: 09/14/2022] [Indexed: 11/13/2022] Open
Abstract
Whether long non-coding RNA Mir-99a-Let-7c Cluster Host Gene (LncRNA MIR99AHG) is involved in osteoporosis (OP) remains vague, so we hereby center on its implication. Old C57BL/6J mice were injected with the silencing lentivirus of MIR99AHG and subjected to microCT analysis and immunohistochemistry on osteogenic cells. The osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) with or without transfection was determined by alkaline phosphatase (ALP) and Alizarin Red S staining. Total N(6)-methyladenosine (m6A) on the bone marrow mesenchymal stem cells (BMSCs) was quantified. The potential methylation site and the complementary binding sites with candidate microRNA (miR) were predicted via bioinformatic analyses, with the latter being confirmed via dual-luciferase reporter, RNA immunoprecipitation and RNA pull-down assays. Quantitative real-time PCR and Western blot were used for quantification assays. MIR99AHG was decreased during the osteogenic differentiation of BMSCs, where increased Osterix (OSX), Collagen, Type I, Alpha 1 (Col1A1), Osteocalcin (OCN) and RUNX Family Transcription Factor 2 (RUNX2) as well as more color-stained areas were found. Also, silencing MIR99AHG relieved the OP in mice and reduced the loss of osteogenic cells. M6A methylation in undifferentiated BMSCs was low and MIR99AHG overexpression abolished the effects of overexpressed METTL3 on promoting osteogenic differentiation. MiR-4660, which was downregulated in BMSCs without differentiation but increased during osteogenic differentiation, could bind with MIR99AHG. Furthermore, miR-4660 promoted osteogenic differentiation and reversed the effects of overexpressed MIR99AHG. The present study demonstrated that METTL3-mediated LncRNA MIR99AHG methylation enhanced the osteogenic differentiation of BMSCs via targeting miR-4660.
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Affiliation(s)
- Lintao Li
- Department of Orthopedic, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, China
| | - Beiyue Wang
- Department of Orthopedic, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, China
| | - Xing Zhou
- Department of Orthopedic, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, China
| | - Hao Ding
- Department of Orthopedic, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, China
| | - Chang Sun
- Department of Orthopedic, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, China
| | - Yicun Wang
- Department of Orthopedic, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, China
| | - Fan Zhang
- Department of Orthopaedic, Changzheng Hospital, Navy Military Medical University, Shanghai, China
| | - Jianning Zhao
- Department of Orthopedic, Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, China
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Huang W, Wu X, Zhao Y, Liu Y, Zhang B, Qiao M, Zhu Z, Zhao Z. Janus-Inspired Core-Shell Structure Hydrogel Programmatically Releases Melatonin for Reconstruction of Postoperative Bone Tumor. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2639-2655. [PMID: 36603840 PMCID: PMC9869893 DOI: 10.1021/acsami.2c18545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
At present, surgery is one of the main treatments for bone tumor. However, the risk of recurrence and the large area of bone defects after surgery pose a great challenge. Therefore, a Janus-inspired core-shell structure bone scaffold was designed to achieve the self-programmed release of melatonin at different concentrations, clearing the residual tumor cells at early stage after resection and promoting bone repair later. The layered differential load designs inspired by Janus laid the foundation for the differential release of melatonin, where sufficient melatonin inhibited tumor growth as low dose promoted osteogenesis. Then, the automatically programmed delivery of melatonin is achieved by the gradient degradation of the core-shell structure. In the material characterization, scanning electron microscopy revealed the core-shell structure. The drug release experiment and in vivo degradation experiment reflected the programmed differential release of melatonin. In the biological experiment part, in vivo and in vitro experiments not only confirmed the significant inhibitory effect of the core-shell hydrogel scaffold on tumor but also confirmed its positive effect on osteogenesis. Our Janus-inspired core-shell hydrogel scaffold provides a safe and efficient means to inhibit tumor recurrence and bone repair after bone tumor, and it also develops a new and efficient tool for differential and programmed release of other drugs.
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Affiliation(s)
- Wei Huang
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Xiaoyue Wu
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Yifan Zhao
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Yanhua Liu
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Bo Zhang
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Mingxin Qiao
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Zhou Zhu
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
| | - Zhihe Zhao
- State Key Laboratory of Oral
Diseases & National Clinical Research Center for Oral Diseases,
West China Hospital of Stomatology, Sichuan
University, Chengdu 610041, People’s Republic
of China
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Genome-Wide Methylation Changes Associated with Replicative Senescence and Differentiation in Endothelial and Bone Marrow Mesenchymal Stromal Cells. Cells 2023; 12:cells12020285. [PMID: 36672222 PMCID: PMC9857206 DOI: 10.3390/cells12020285] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/27/2022] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Bone marrow mesenchymal stromal cells (BMSCs) are multipotent cells able to self-renew and differentiate, depending on the microenvironment, into adipocytes and osteoblasts. These cells have a limited number of replications and enter replicative senescence during in vitro expansion. The role of DNA methylation (DNAm) assumes importance in cell function and commitment; however, its exact contribution to BMSC differentiation and replicative senescence is still unclear. We performed a genome-wide DNAm analysis on BMSCs cultured in vitro at early passages and induced to differentiate into adipocytes and osteoblasts, and on replicative senescent BMSCs and HUVECs, to identify DNAm patterns of senescence and differentiation. We also compared BMSCs and HUVECs in replicative senescence and found that, in both cellular systems, genome-wide hypomethylation was accompanied by a higher-than-expected overlap of differentially methylated positions (DMPs) and concordance in terms of direction of the change. A Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis on lineage-independent senescence-associated DMPs revealed 16 common pathways, including Insulin resistance, Molecule adhesion, and Wnt/β-catenin signaling. In both adipogenesis and osteogenesis, we observed a general demethylation of CpG sites compared with undifferentiated BMSCs with a higher number of DMPs in osteogenesis. KEGG analysis resulted in 30 pathways enriched in osteoblasts and only 2 in adipocytes when compared to undifferentiated cells. When comparing differentiated BMSCs with senescent ones, osteogenesis exhibited a greater overlap with senescence in terms of number of DMPs and direction of methylation change compared to adipogenesis. In conclusion, this study may be useful for future research on general mechanisms that occur in replicative senescence and furthermore to identify trajectories of BMSC differentiation and common aspects of differentiated and senescent cells.
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Tuan RS, Zhang Y, Chen L, Guo Q, Yung PSH, Jiang Q, Lai Y, Yu J, Luo J, Xia J, Xu C, Lei G, Su J, Luo X, Zou W, Qu J, Song B, Zhao X, Ouyang H, Li G, Ding C, Wan C, Chan BP, Yang L, Xiao G, Shi D, Xu J, Cheung LWH, Bai X, Xie H, Xu R, Li ZA, Chen D, Qin L. Current progress and trends in musculoskeletal research: Highlights of NSFC-CUHK academic symposium on bone and joint degeneration and regeneration. J Orthop Translat 2022; 37:175-184. [PMID: 36605329 PMCID: PMC9791426 DOI: 10.1016/j.jot.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Rocky S. Tuan
- The Chinese University of Hong Kong, Hong Kong SAR, China
| | | | - Lin Chen
- Daping Hospital, The Third Military (Army) Medical University, China
| | - Quanyi Guo
- Chinese PLA General Hospital, Chinese PLA Medical School, China
| | - Patrick SH. Yung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Qing Jiang
- Nanjing Drum Tower Hospital, Nanjing University, China
| | - Yuxiao Lai
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, China
| | - Jiakuo Yu
- Peking University Third Hospital, China
| | - Jian Luo
- School of Medicine, Tongji University, China
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chenjie Xu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Guanghua Lei
- Xiangya Hospital Central South University, China
| | - Jiacan Su
- Changhai Hospital, People's Liberation Army Naval Medical University, China
| | | | - Weiguo Zou
- Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, China
| | - Jing Qu
- Institute of Zoology, Chinese Academy of Sciences, China
| | - Bing Song
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, China
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | | | - Gang Li
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Changhai Ding
- Zhujiang Hospital of Southern Medical University, Menzies Institute of Medical Research, University of Tasmania, Australia
| | - Chao Wan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Barbara P. Chan
- Faculty of Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Liu Yang
- Institute of Orthopaedics, Xijing Hospital, Air Force Medical University, China
| | - Guozhi Xiao
- Department of Biology, Southern University of Science and Technology, China
| | - Dongquan Shi
- Nanjing Drum Tower Hospital, Nanjing University, China
| | - Jiankun Xu
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Louis WH. Cheung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiaochun Bai
- School of Basic Medical Sciences, Southern Medical University, China
| | - Hui Xie
- Xiangya Hospital Central South University, China
| | - Ren Xu
- State Key Laboratory of Cellular Stress Biology, Xiamen University, China
| | - Zhong Alan Li
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Di Chen
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, China,Corresponding author.
| | - Ling Qin
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China,Corresponding author.
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Ma Y, Yang J, Hu Y, Xia Z, Cai K. Osteogenic differentiation of the MSCs on silk fibroin hydrogel loaded Fe3O4@PAA NPs in static magnetic field environment. Colloids Surf B Biointerfaces 2022; 220:112947. [DOI: 10.1016/j.colsurfb.2022.112947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/30/2022] [Accepted: 10/15/2022] [Indexed: 11/05/2022]
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37
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Hu X, Wu H. SUMOylation of optineurin is critical for inhibiting interferon β production. Biochem Biophys Res Commun 2022; 623:189-195. [DOI: 10.1016/j.bbrc.2022.07.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 11/02/2022]
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38
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Long-term osteogenic differentiation of human bone marrow stromal cells in simulated microgravity: novel proteins sighted. Cell Mol Life Sci 2022; 79:536. [PMID: 36181557 PMCID: PMC9526692 DOI: 10.1007/s00018-022-04553-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/23/2022] [Accepted: 09/09/2022] [Indexed: 12/03/2022]
Abstract
Microgravity-induced bone loss is a major concern for space travelers. Ground-based microgravity simulators are crucial to study the effect of microgravity exposure on biological systems and to address the limitations posed by restricted access to real space. In this work, for the first time, we adopt a multidisciplinary approach to characterize the morphological, biochemical, and molecular changes underlying the response of human bone marrow stromal cells to long-term simulated microgravity exposure during osteogenic differentiation. Our results show that osteogenic differentiation is reduced while energy metabolism is promoted. We found novel proteins were dysregulated under simulated microgravity, including CSC1-like protein, involved in the mechanotransduction of pressure signals, and PTPN11, SLC44A1 and MME which are involved in osteoblast differentiation pathways and which may become the focus of future translational projects. The investigation of cell proteome highlighted how simulated microgravity affects a relatively low number of proteins compared to time and/or osteogenic factors and has allowed us to reconstruct a hypothetical pipeline for cell response to simulated microgravity. Further investigation focused on the application of nanomaterials may help to increase understanding of how to treat or minimize the effects of microgravity.
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Chen M, Wang D, Li M, He Y, He T, Chen M, Hu Y, Luo Z, Cai K. Nanocatalytic Biofunctional MOF Coating on Titanium Implants Promotes Osteoporotic Bone Regeneration through Cooperative Pro-osteoblastogenesis MSC Reprogramming. ACS NANO 2022; 16:15397-15412. [PMID: 36106984 DOI: 10.1021/acsnano.2c07200] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
An elevated bone microenvironmental reactive oxygen species (ROS) level is a hallmark of osteoporosis that often leads to the dysfunction of bone-related mesenchymal stem cells (MSCs), which would induce MSC senescence and severely undermine their osteoblastic potential. Herein, we report the in situ construction of bone microenvironment-responsive biofunctional metal-organic framework (bio-MOF) coating on the titanium surface through the coordination between p-xylylenebisphosphonate (PXBP) and Ce/Sr ions by a hydrothermal method. Taking advantage of the anchored Ce and Sr ions, the AHT-Ce/SrMOF implants demonstrate on-demand superoxide dismutase and catalase-like catalytic activities to decompose ROS in MSCs and restore their mitochondrial functions. In vitro analysis showed that the AHT-Ce/SrMOF implants substantially activated the AMP-activated protein kinase (AMPK) signaling pathway in MSCs and reduced the ROS levels. Meanwhile, MSCs grown on AHT-Ce/SrMOF implants displayed significantly higher expressions of the mitochondrial fission marker (DRP1), mitochondrial fusion marker (MFN2 and OPA1), and mitophagy marker (PINK1 and LC3) than those of the AHT-CeMOF and AHT-SrMOF groups, which indicated that the bio-MOF could amend mitochondrial function in MSCs to reverse senescence. In vivo evaluations showed that the bio-MOF-coated Ti implants could restore MSC function in the implant site and promote new bone formation, leading to improved osteointegration in osteoporotic rat. This study may improve implant-mediated fracture healing in the clinics.
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Affiliation(s)
- Maowen Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing University, Chongqing 400044, P.R. China
| | - Dong Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing University, Chongqing 400044, P.R. China
| | - Menghuan Li
- School of Life Science, Chongqing University, Chongqing 400044, P.R. China
| | - Ye He
- Thomas Lord Department of Mechanical Engineering & Materials Science, Duke University, Durham 27705, North Carolina, United States
| | - Tingting He
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing University, Chongqing 400044, P.R. China
| | - Maohua Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing University, Chongqing 400044, P.R. China
| | - Yan Hu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing University, Chongqing 400044, P.R. China
| | - Zhong Luo
- School of Life Science, Chongqing University, Chongqing 400044, P.R. China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Chongqing University, Chongqing 400044, P.R. China
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40
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Zhang L, Zheng YL, Wang R, Wang XQ, Zhang H. Exercise for osteoporosis: A literature review of pathology and mechanism. Front Immunol 2022; 13:1005665. [PMID: 36164342 PMCID: PMC9509020 DOI: 10.3389/fimmu.2022.1005665] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Osteoporosis (OP) is a disease that weakens bones and has a high morbidity rate worldwide, which is prevalent among the elderly, particularly, women of postmenopausal age. The dynamic balance between bone formation and resorption is necessary for normal bone metabolism. Many factors, including aging, estrogen deficiency, and prolonged immobilization, disrupt normal apoptosis, autophagy, and inflammation, leading to abnormal activation of osteoclasts, which gradually overwhelm bone formation by bone resorption. Moderate exercise as an effective non-drug treatment helps increase bone formation and helps relieve OP. The possible mechanisms are that exercise affects apoptosis and autophagy through the release of exercise-stimulated myohormone and the secretion of anti-inflammatory cytokines via mechanical force. In addition, exercise may also have an impact on the epigenetic processes involved in bone metabolism. Mechanical stimulation promotes bone marrow mesenchymal stem cells (BMSCs) to osteogenic differentiation by altering the expression of non-coding RNAs. Besides, by reducing DNA methylation, the mechanical stimulus can also alter the epigenetic status of osteogenic genes and show associated increased expression. In this review, we reviewed the possible pathological mechanisms of OP and summarized the effects of exercise on bone metabolism, and the mechanisms by which exercise alleviates the progression of OP, to provide a reference for the prevention and treatment of OP.
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Affiliation(s)
- Lin Zhang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yi-Li Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Rui Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
- *Correspondence: Xue-Qiang Wang, ; Hao Zhang,
| | - Hao Zhang
- Department of Orthopedics, Changhai Hospital Affiliated to the Navy Military Medical University, Shanghai, China
- *Correspondence: Xue-Qiang Wang, ; Hao Zhang,
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41
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Zhang Y, Liu W, Yuan W, Cai Z, Ye G, Zheng G, Xu C, Wang X, Zeng C, Mi R, Feng P, Chen F, Wu Y, Shen H, Wang P. Impairment of APPL1/Myoferlin facilitates adipogenic differentiation of mesenchymal stem cells by blocking autophagy flux in osteoporosis. Cell Mol Life Sci 2022; 79:488. [PMID: 35984564 PMCID: PMC9391247 DOI: 10.1007/s00018-022-04511-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/21/2022] [Accepted: 08/02/2022] [Indexed: 11/30/2022]
Abstract
An imbalance of human mesenchymal stem cells (hMSCs) adipogenic and osteogenic differentiation is crucial in the pathogenesis of osteoporosis, and elucidation of the underlying mechanism is urgently needed. APPL1, an adaptor protein of the adiponectin receptor, was recently shown to be closely related to bone mass. However, the role of APPL1 in the imbalance of hMSC differentiation in osteoporosis is unclear. Therefore, we aimed to explore the mechanisms by which APPL1 alters hMSCs adipogenic differentiation in osteoporosis. Here, we found that APPL1 expression was downregulated in elderly patients with osteoporosis and in mouse osteoporosis model. APPL1 negatively regulated hMSC adipogenic differentiation in vivo and in vitro. Mechanistically, by enhancing ubiquitination-mediated Myoferlin degradation, downregulated APPL1 expression increased the risk of lysosome dysfunction during hMSCs adipogenic differentiation. Lysosomal dysfunction inhibited autophagy flux by suppressing autophagosome degradation and promoted hMSC differentiation towards the adipocyte lineage. Our findings suggest that APPL1/Myoferlin downregulation promoted hMSCs adipogenic differentiation by inhibiting autophagy flux, further impairing the balance of hMSCs adipogenic and osteogenic differentiation in osteoporosis; the APPL1/ Myoferlin axis may be a promising diagnostic and therapeutic target for osteoporosis.
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Affiliation(s)
- Yunhui Zhang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Wenjie Liu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Weiquan Yuan
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Zhaopeng Cai
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Guiwen Ye
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Guan Zheng
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Chenhao Xu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Xinglang Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Chenying Zeng
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Rujia Mi
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Pei Feng
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Fenglei Chen
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China
| | - Yanfeng Wu
- Center for Biotherapy, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China.
| | - Huiyong Shen
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China.
| | - Peng Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-Sen University, 3025# Shennan Road, Shenzhen, 518000, People's Republic of China.
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42
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He M, Lei H, He X, Liu Y, Wang A, Ren Z, Liu X, Yan G, Wang W, Wang Y, Li G, Wang T, Pu J, Shen Z, Wang Y, Xie J, Du W, Yuan Y, Yang L. METTL14 Regulates Osteogenesis of Bone Marrow Mesenchymal Stem Cells via Inducing Autophagy Through m6A/IGF2BPs/Beclin-1 Signal Axis. Stem Cells Transl Med 2022; 11:987-1001. [PMID: 35980318 PMCID: PMC9492283 DOI: 10.1093/stcltm/szac049] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/05/2022] [Indexed: 11/26/2022] Open
Abstract
The development of osteoporosis is often accompanied by autophagy disturbance, which also causes new osteoblast defects from bone marrow mesenchymal stem cells (BMSCs). However, the underlying molecular mechanisms are still not fully understood. Methyltransferase-like 14 (METTL14) is the main enzyme for N6-methyladenosine (m6A), the most prevalent internal modification in mammalian mRNAs, and it has been implicated in many bioprocesses. Herein, we demonstrate that METTL14 plays a critical role in autophagy induction and hinders osteoporosis process whose expression is decreased both in human osteoporosis bone tissue and ovariectomy (OVX) mice. In vivo, METTL14+/− knockdown mice exhibit elevated bone loss and impaired autophagy similar to the OVX mice, while overexpression of METTL14 significantly promotes bone formation and inhibits the progression of osteoporosis caused by OVX surgery. In vitro, METTL14 overexpression significantly enhances the osteogenic differentiation ability of BMSCs through regulating the expression of beclin-1 depending on m6A modification and inducing autophagy; the opposite is true with METTL14 silencing. Subsequently, m6A-binding proteins IGF2BP1/2/3 recognize m6A-methylated beclin-1 mRNA and promote its translation via mediating RNA stabilization. Furthermore, METTL14 negatively regulates osteoclast differentiation. Collectively, our study reveals the METTL14/IGF2BPs/beclin-1 signal axis in BMSCs osteogenic differentiation and highlights the critical roles of METTL14-mediated m6A modification in osteoporosis.
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Affiliation(s)
- Mingyu He
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Hong Lei
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Xiaoqi He
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Ying Liu
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Ao Wang
- Department of Pharmacy (The University Key Laboratory of Drug Research, Heilongjiang Province), The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,Department of Clinical Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Zijing Ren
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Xiaoyan Liu
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Gege Yan
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Wenbo Wang
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Yang Wang
- Department of Pharmacy (The University Key Laboratory of Drug Research, Heilongjiang Province), The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,Department of Clinical Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Guanghui Li
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Tong Wang
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Jiaying Pu
- Department of Pharmacy (The University Key Laboratory of Drug Research, Heilongjiang Province), The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,Department of Clinical Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Zhihua Shen
- Department of Pharmacy (The University Key Laboratory of Drug Research, Heilongjiang Province), The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,Department of Clinical Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Yanquan Wang
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Jiajie Xie
- Department of Pharmacy (The University Key Laboratory of Drug Research, Heilongjiang Province), The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,Department of Clinical Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
| | - Weijie Du
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China.,Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, Harbin, People's Republic of China
| | - Ye Yuan
- Department of Pharmacy (The University Key Laboratory of Drug Research, Heilongjiang Province), The Second Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,Department of Clinical Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China.,Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, Harbin, People's Republic of China
| | - Lei Yang
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,Key Laboratory of Hepatosplenic Surgery of Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.,NHC Key Laboratory of Cell Transplantation, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
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Lin S, Luo B, Ma J. Multiple datasets to explore the molecular mechanism of sepsis. BMC Genom Data 2022; 23:66. [PMID: 35971090 PMCID: PMC9380322 DOI: 10.1186/s12863-022-01078-2] [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: 03/15/2022] [Accepted: 07/25/2022] [Indexed: 11/10/2022] Open
Abstract
Background This study aimed to identify potential biomarkers, by means of bioinformatics, affecting the occurrence and development of septic shock. Methods Download GSE131761 septic shock data set from NCBI geo database, including 33 control samples and 81 septic shock samples. GSE131761 and sequencing data were used to identify and analyze differentially expressed genes in septic shock patients and normal subjects. In addition, with sequencing data as training set and GSE131761 as validation set, a diagnostic model was established by lasso regression to identify key genes. ROC curve verified the stability of the model. Finally, immune infiltration analysis, enrichment analysis, transcriptional regulation analysis and correlation analysis of key genes were carried out to understand the potential molecular mechanism of key genes affecting septic shock. Results A total of 292 differential genes were screened out from the self-test data, 294 differential genes were screened out by GSE131761, Lasso regression was performed on the intersection genes of the two, a diagnostic model was constructed, and 5 genes were identified as biomarkers of septic shock. These 5 genes were SIGLEC10, VSTM1, GYPB, OPTN, and GIMAP7. The five key genes were strongly correlated with immune cells, and the ROC results showed that the five genes had good predictive performance on the occurrence and development of diseases. In addition, the key genes were strongly correlated with immune regulatory genes. Conclusion In this study, a series of algorithms were used to identify five key genes that are associated with septic shock, which may become potential candidate targets for septic shock diagnosis and treatment. Trial registration Approval number:2019XE0149-1.
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Li Z, Zhao Y, Wang Z, Ren M, Wang X, Liu H, Lin Q, Wang J. Engineering Multifunctional Hydrogel-Integrated 3D Printed Bioactive Prosthetic Interfaces for Osteoporotic Osseointegration. Adv Healthc Mater 2022; 11:e2102535. [PMID: 35040266 DOI: 10.1002/adhm.202102535] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/12/2022] [Indexed: 12/31/2022]
Abstract
3D printed porous titanium alloy implants is an advanced orthopedic material for joint replacement. However, the high risk of aseptic loosening and periprosthetic infection is difficult to avoid, and the declined autophagy of osteoporosis-derived bone marrow mesenchymal stem cells (OP-BMSCs) further severely impairs the osseointegration under the osteoporotic circumstance. It is thus becoming urgently significant to develop orthopedic materials with autophagy regulation and antibacterial bioactivity. In this regard, a novel class of multifunctional hydrogel-integrated 3D printed bioactive prosthetic interfaces is engineered for in situ osseointegration in osteoporosis. The hydrogel is fabricated from the dynamic crosslinking of synthetic polymers, natural polymers, and silver nanowires to deliver autophagy-regulated rapamycin. Therefore, the resultant soft material exhibits antibacterial ability, biocompatibility, degradability, conductive, self-healing, and stimuli-responsive abilities. In vitro experiments demonstrate that the hydrogel-integrated 3D printed bioactive prosthetic interfaces can restore the declined cellular activities of OP-BMSCs by upregulating the autophagy level and show excellent antibacterial activity against S. aureus and MRSA. More remarkably, the multifunctional 3D printed bioactive prosthetic interfaces significantly improve osseointegration and inhibit infection in osteoporotic environment in vivo. This study provides an efficient strategy to develop novel prosthetic interfaces to reduce complications after arthroplasty for patients with osteoporosis.
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Affiliation(s)
- Zuhao Li
- Orthopaedic Medical Center The Second Hospital of Jilin University No. 218 Ziqiang Street Changchun 130041 P. R. China
- Orthopaedic Research Institute of Jilin Province No. 218 Ziqiang Street Changchun 130041 P. R. China
| | - Yue Zhao
- State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China
| | - Zhonghan Wang
- Orthopaedic Medical Center The Second Hospital of Jilin University No. 218 Ziqiang Street Changchun 130041 P. R. China
- Orthopaedic Research Institute of Jilin Province No. 218 Ziqiang Street Changchun 130041 P. R. China
| | - Ming Ren
- Orthopaedic Medical Center The Second Hospital of Jilin University No. 218 Ziqiang Street Changchun 130041 P. R. China
- Orthopaedic Research Institute of Jilin Province No. 218 Ziqiang Street Changchun 130041 P. R. China
| | - Xiangang Wang
- Orthopaedic Medical Center The Second Hospital of Jilin University No. 218 Ziqiang Street Changchun 130041 P. R. China
- Orthopaedic Research Institute of Jilin Province No. 218 Ziqiang Street Changchun 130041 P. R. China
| | - He Liu
- Orthopaedic Medical Center The Second Hospital of Jilin University No. 218 Ziqiang Street Changchun 130041 P. R. China
- Orthopaedic Research Institute of Jilin Province No. 218 Ziqiang Street Changchun 130041 P. R. China
| | - Quan Lin
- State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China
| | - Jincheng Wang
- Orthopaedic Medical Center The Second Hospital of Jilin University No. 218 Ziqiang Street Changchun 130041 P. R. China
- Orthopaedic Research Institute of Jilin Province No. 218 Ziqiang Street Changchun 130041 P. R. China
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Han J, Zheng Q, Cheng Y, Liu Y, Bai Y, Yan B, Guo S, Yu J, Li X, Wang C. Toll-like receptor 9 (TLR9) gene deletion-mediated fracture healing in type II diabetic osteoporosis associates with inhibition of the nuclear factor-kappa B (NF-κB) signaling pathway. Bioengineered 2022; 13:13689-13702. [PMID: 35707851 PMCID: PMC9275877 DOI: 10.1080/21655979.2022.2063663] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Diabetes is characterized by increased fracture risk. Evidence from in vivo studies is lacking for anti-fracture strategies in diabetes. Our microarray analyses predicted association of Toll-like receptor 9 (TLR9) with both diabetes and osteoporosis, which was the focus of this work in a murine model of type II diabetic osteoporosis (T2DOP). A T2DOP model with fracture was established in TLR9 knockout (TLR9−/−) mice, which were then treated with the NF-κB signaling pathway inhibitor (PDTC) and activator (TNF-α). The obtained data suggested that TLR9 knockout augmented regeneration of bone tissues and cartilage area in the callus, and diminished fibrous tissues in T2DOP mice. Moreover, TLR9 depletion significantly affected bone mineral density (BMD), bone volume/tissue volume (BV/TV), connectivity density, trabecular number, trabecular separation and trabecular thickness, thus promoting fracture recovery. Bone morphology and structure were also improved in response to TLR9 depletion in T2DOP mice. TLR9 depletion inactivated NF-κB signaling in T2DOP mice. PDTC was found to enhance fracture healing in T2DOP mice, while TNF-α negated this effect. Collectively, these data indicate that TLR9 depletion may hold anti-fracture properties, making it a potential therapeutic target for T2DOP. Abbreviations: Diabetic osteoporosis (DOP); bone mineral density (BMD); Toll-like receptors (TLRs); type 2 diabetes (T2D); Toll-like receptor 9 (TLR9); nuclear factor-kappaB (NF-κB); streptozotocin (STZ); type 2 diabetic osteoporosis (T2DOP); Gene Expression Omnibus (GEO); Kyoto encyclopedia of genes and genomes (KEGG); pyrrolidine dithiocarbamate (PDTC); computed tomography (CT); Hematoxylin–eosin (HE); bone morphogenetic protein 7 (BMP7); analysis of variance (ANOVA);
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Affiliation(s)
- Jiakai Han
- Endocrinology Department, Huaihe Hospital of Henan University, Kaifeng, PR, China
| | - Qian Zheng
- Endocrinology Department, Yan'an Hospital of Kunming Medical University, Kunming, PR, China
| | - Yongxia Cheng
- Pathology Diagnosis Center, The HongQi Hospital, The First Clinical Medical School of Mudanjiang Medical College, Mudanjiang, PR, China
| | - Yong Liu
- Platform Management Division, Scientific Research Division of Mudanjiang Medical College, Mudanjiang, PR, China
| | - Yuxin Bai
- Pathology Diagnosis Center, The HongQi Hospital, The First Clinical Medical School of Mudanjiang Medical College, Mudanjiang, PR, China
| | - Bin Yan
- Pathology Diagnosis Center, The HongQi Hospital, The First Clinical Medical School of Mudanjiang Medical College, Mudanjiang, PR, China
| | - Sufen Guo
- Pathology Diagnosis Center, The HongQi Hospital, The First Clinical Medical School of Mudanjiang Medical College, Mudanjiang, PR, China
| | - Jianbo Yu
- Pathology Diagnosis Center, The HongQi Hospital, The First Clinical Medical School of Mudanjiang Medical College, Mudanjiang, PR, China
| | - Xinxin Li
- Ultrasound Department, Second Hospital of Mudanjiang Medical College, Mudanjiang, PR, China
| | - Chong Wang
- Pathology Diagnosis Center, The HongQi Hospital, The First Clinical Medical School of Mudanjiang Medical College, Mudanjiang, PR, China
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Chen Y, Zhang L, Zang X, Shen X, Li J, Chen L. Baohuoside I Inhibits Tumor Angiogenesis in Multiple Myeloma via the Peroxisome Proliferator-Activated Receptor γ/Vascular Endothelial Growth Factor Signaling Pathway. Front Pharmacol 2022; 13:822082. [PMID: 35341213 PMCID: PMC8948427 DOI: 10.3389/fphar.2022.822082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Angiogenesis plays an important role in the development of multiple myeloma (MM). Baohuoside I (BI) is a core flavonoid monomer with anticancer property. However, the mechanism of BI on MM-stimulated angiogenesis has not been revealed. In this study, we demonstrated that BI inhibits MM-induced angiogenesis in vitro and angiogenesis in a xenograft mouse model in vivo. We further showed that peroxisome proliferator–activated receptor γ (PPARγ) transcriptional activity was mediated by a direct physical association between BI and PPARγ. Meanwhile, inhibition of PPARγ using lentivirus transfection of shRNA in human myeloma cell lines showed that the facilitation of PPARγ blocked angiogenesis and PPARγ repressed vascular endothelial growth factor (VEGF) transcription. Furthermore, BI treatment decreased VEGF expression, whereas VEGF expression remained unchanged after PPARγ knockdown when exposed to BI. Overall, our study is the first to reveal that BI inhibits MM angiogenesis by the PPARγ–VEGF signaling axis.
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Affiliation(s)
- Ying Chen
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Lina Zhang
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Xiaoyan Zang
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Xuxing Shen
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Jianyong Li
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Lijuan Chen
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
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Research on the Mechanism of Kaempferol for Treating Senile Osteoporosis by Network Pharmacology and Molecular Docking. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:6741995. [PMID: 35154351 PMCID: PMC8831051 DOI: 10.1155/2022/6741995] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/08/2022] [Indexed: 12/24/2022]
Abstract
Kaempferol (KP), as a natural anti-inflammatory compound, has been reported to have curative effects on alleviating senile osteoporosis (SOP), which is an inflammation-related musculoskeletal disease, but the molecular mechanisms remain unclear due to scanty relevant studies. We predicted the targets of KP and SOP, and the common targets of them were subsequently used to carry out PPI analysis. Moreover, we adopted GO and KEGG enrichment analysis and molecular docking to explore potential mechanisms of KP against SOP. There were totally 152 KP-related targets and 978 SOP-related targets, and their overlapped targets comprised 68 intersection targets. GO enrichment analysis showed 1529 biological processes (p < 0.05), which involved regulation of inflammatory response, oxidative stress, regulation of bone resorption and remodeling, osteoblast and osteoclast differentiation, etc. Moreover, KEGG analysis revealed 146 items including 44 signaling pathways (p < 0.05), which were closely linked to TNF, IL-17, NF-kappa B, PI3K-Akt, MAPK, estrogen, p53, prolactin, VEGF, and HIF-1 signaling pathways. By means of molecular docking, we found that kaempferol is bound with the key targets' active pockets through some connections such as hydrogen bond, pi-alkyl, pi-sigma, pi-pi Stacked, pi-pi T-shaped, and van der Waals, illustrating that kaempferol has close combination with the key targets. Collectively, various targets and pathways involve in the process of kaempferol treatment against SOP through regulating inflammatory response, oxidative stress, bone homeostasis, etc. Moreover, our study first reported that kaempferol may regulate core targets' expression with involvement of inflammatory response, oxidative stress, and bone homeostasis, thus treating SOP.
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Cai GP, Liu YL, Luo LP, Xiao Y, Jiang TJ, Yuan J, Wang M. Alkbh1-mediated DNA N6-methyladenine modification regulates bone marrow mesenchymal stem cell fate during skeletal aging. Cell Prolif 2022; 55:e13178. [PMID: 35018683 PMCID: PMC8828262 DOI: 10.1111/cpr.13178] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/25/2021] [Indexed: 12/17/2022] Open
Abstract
Objectives DNA N6‐methyladenine (N6‐mA) demethylase Alkbh1 participates in regulating osteogenic differentiation of mesenchymal stem cell (MSCs) and vascular calcification. However, the role of Alkbh1 in bone metabolism remains unclear. Materials and Methods Bone marrow mesenchymal stem cells (BMSCs)‐specific Alkbh1 knockout mice were used to investigate the role of Alkbh1 in bone metabolism. Western blot, qRT‐PCR, and immunofluorescent staining were used to evaluate the expression of Alkbh1 or optineurin (optn). Micro‐CT, histomorphometric analysis, and calcein double‐labeling assay were used to evaluate bone phenotypes. Cell staining and qRT‐PCR were used to evaluate the osteogenic or adipogenic differentiation of BMSCs. Dot blotting was used to detect the level of N6‐mA in genomic DNA. Chromatin immunoprecipitation (Chip) assays were used to identify critical targets of Alkbh1. Alkbh1 adeno‐associated virus was used to overexpress Alkbh1 in aged mice. Results Alkbh1 expression in BMSCs declined during aging. Knockout of Alkbh1 promoted adipogenic differentiation of BMSCs while inhibited osteogenic differentiation. BMSC‐specific Alkbh1 knockout mice exhibited reduced bone mass and increased marrow adiposity. Mechanistically, we identified optn as the downstream target through which Alkbh1‐mediated DNA m6A modification regulated BMSCs fate. Overexpression of Alkbh1 attenuated bone loss and marrow fat accumulation in aged mice. Conclusions Our findings demonstrated that Alkbh1 regulated BMSCs fate and bone‐fat balance during skeletal aging and provided a potential target for the treatment of osteoporosis.
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Affiliation(s)
- Guang-Ping Cai
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P. R. China
| | - Ya-Lin Liu
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P. R. China
| | - Li-Ping Luo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P. R. China
| | - Ye Xiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P. R. China
| | - Tie-Jian Jiang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P. R. China
| | - Jian Yuan
- Department of Neurosurgery, Xiangya Hospital of Central South University, Changsha, China
| | - Min Wang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, P. R. China
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Zhuang A, Chai P, Wang S, Zuo S, Yu J, Jia S, Ge S, Jia R, Zhou Y, Shi W, Xu X, Ruan J, Fan X. Metformin promotes histone deacetylation of optineurin and suppresses tumour growth through autophagy inhibition in ocular melanoma. Clin Transl Med 2022; 12:e660. [PMID: 35075807 PMCID: PMC8787022 DOI: 10.1002/ctm2.660] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 11/08/2021] [Accepted: 11/11/2021] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE To explore the therapeutic potential and the underlying mechanism of metformin, an adenosine monophosphate-activated kinase (AMPK) activator, in ocular melanoma. METHODS CCK8, transwell, and colony formation assays were performed to detect the proliferation and migration ability of ocular melanoma cells. A mouse orthotopic xenograft model was built to detect ocular tumor growth in vivo. Western blot, immunofluorescence, and electron microscopy were adopted to evaluate the autophagy levels of ocular melanoma cells, and high-throughput proteomics and CUT & Tag assays were performed to analyze the candidate for autophagy alteration. RESULTS Here, we revealed for the first time that a relatively low dose of metformin induced significant tumorspecific inhibition of the proliferation and migration of ocular melanoma cells both in vitro and in vivo. Intriguingly, we found that metformin significantly attenuated autophagic influx in ocular melanoma cells. Through high-throughput proteomics analysis, we revealed that optineurin (OPTN), which is a key candidate for autophagosome formation and maturation, was significantly downregulated after metformin treatment. Moreover, excessive OPTN expression was associated with an unfavorable prognosis of patients. Most importantly, we found that a histone deacetylase, SIRT1, was significantly upregulated after AMPK activation, resulting in histone deacetylation in the OPTN promoter. CONCLUSIONS Overall, we revealed for the first time that metformin significantly inhibited the progression of ocular melanoma, and verified that metformin acted as an autophagy inhibitor through histone deacetylation of OPTN. This study provides novel insights into metformin - guided suppression of ocular melanoma and the potential mechanism underlying the dual role of metformin in autophagy regulation.
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Affiliation(s)
- Ai Zhuang
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Peiwei Chai
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Shaoyun Wang
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Sipeng Zuo
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Jie Yu
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Shichong Jia
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Shengfang Ge
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Renbing Jia
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Yixiong Zhou
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Wodong Shi
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Xiaofang Xu
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Jing Ruan
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
| | - Xianqun Fan
- Department of OphthalmologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Shanghai Key Laboratory of Orbital Diseases and Ocular OncologyShanghaiChina
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50
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Leser JM, Harriot A, Buck HV, Ward CW, Stains JP. Aging, Osteo-Sarcopenia, and Musculoskeletal Mechano-Transduction. FRONTIERS IN REHABILITATION SCIENCES 2021; 2:782848. [PMID: 36004321 PMCID: PMC9396756 DOI: 10.3389/fresc.2021.782848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/10/2021] [Indexed: 11/13/2022]
Abstract
The decline in the mass and function of bone and muscle is an inevitable consequence of healthy aging with early onset and accelerated decline in those with chronic disease. Termed osteo-sarcopenia, this condition predisposes the decreased activity, falls, low-energy fractures, and increased risk of co-morbid disease that leads to musculoskeletal frailty. The biology of osteo-sarcopenia is most understood in the context of systemic neuro-endocrine and immune/inflammatory alterations that drive inflammation, oxidative stress, reduced autophagy, and cellular senescence in the bone and muscle. Here we integrate these concepts to our growing understanding of how bone and muscle senses, responds and adapts to mechanical load. We propose that age-related alterations in cytoskeletal mechanics alter load-sensing and mechano-transduction in bone osteocytes and muscle fibers which underscores osteo-sarcopenia. Lastly, we examine the evidence for exercise as an effective countermeasure to osteo-sarcopenia.
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Affiliation(s)
| | | | | | | | - Joseph P. Stains
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, United States
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