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Wu X, Yan M, Shen J, Xiang Y, Jian K, Pan X, Yuan D, Shi J. Enhancing calvarial defects repair with PDGF-BB mimetic peptide hydrogels. J Control Release 2024; 370:277-286. [PMID: 38679161 DOI: 10.1016/j.jconrel.2024.04.045] [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: 11/15/2023] [Revised: 04/08/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Addressing bone defects represents a significant challenge to public health. Localized delivery of growth factor has emerged as promising approach for bone regeneration. However, the clinical application of Platelet-Derived Growth Factor (PDGF) is hindered by its high cost and short half-life. In this work, we introduce the application of PDGF-mimicking peptide (PMP1) hydrogels for calvarial defect restoration, showcasing their remarkable effectiveness. Through osteogenic differentiation assays and q-PCR analyses, we demonstrate PMP1's substantial capacity to enhance osteogenic differentiation of bone marrow mesenchymal stem cell (BMSC), leading to increased expression of crucial osteogenic genes. Further molecular mechanistic investigations reveal PMP1's activation of the PI3K-AKT-mTOR signaling pathway, a key element of its osteogenic effect. In vivo experiments utilizing a rat calvaria critical-sized defect model underscore the hydrogels' exceptional ability to accelerate new bone formation, thereby significantly advancing the restoration of calvaria defects. This research provides a promising bioactive material for bone tissue regeneration.
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Affiliation(s)
- Xia Wu
- The Affliated XiangTan Central Hospital of Hunan University, School of Biomedical Sciences, Hunan University, Changsha, Hunan 410082, China; Shenzhen International Institute for Biomedical Research, Longhua District, Shenzhen, Guangdong 518116, China
| | - Mingming Yan
- Department of Orthopaedic Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410082, China
| | - Jun Shen
- The Affliated XiangTan Central Hospital of Hunan University, School of Biomedical Sciences, Hunan University, Changsha, Hunan 410082, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong 518000, China
| | - Yatong Xiang
- The Affliated XiangTan Central Hospital of Hunan University, School of Biomedical Sciences, Hunan University, Changsha, Hunan 410082, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong 518000, China
| | - Ke Jian
- The Affliated XiangTan Central Hospital of Hunan University, School of Biomedical Sciences, Hunan University, Changsha, Hunan 410082, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong 518000, China
| | - Xiaoyun Pan
- Department of Orthopedics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China.
| | - Dan Yuan
- The Affliated XiangTan Central Hospital of Hunan University, School of Biomedical Sciences, Hunan University, Changsha, Hunan 410082, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong 518000, China.
| | - Junfeng Shi
- The Affliated XiangTan Central Hospital of Hunan University, School of Biomedical Sciences, Hunan University, Changsha, Hunan 410082, China; Shenzhen Research Institute, Hunan University, Shenzhen, Guangdong 518000, China.
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Fang L, Liu Z, Wang C, Shi M, He Y, Lu A, Li X, Li T, Zhu D, Zhang B, Guan J, Shen J. Vascular restoration through local delivery of angiogenic factors stimulates bone regeneration in critical size defects. Bioact Mater 2024; 36:580-594. [PMID: 39100886 PMCID: PMC11295624 DOI: 10.1016/j.bioactmat.2024.07.003] [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: 05/05/2024] [Revised: 06/20/2024] [Accepted: 07/02/2024] [Indexed: 08/06/2024] Open
Abstract
Critical size bone defects represent a significant challenge worldwide, often leading to persistent pain and physical disability that profoundly impact patients' quality of life and mental well-being. To address the intricate and complex repair processes involved in these defects, we performed single-cell RNA sequencing and revealed notable shifts in cellular populations within regenerative tissue. Specifically, we observed a decrease in progenitor lineage cells and endothelial cells, coupled with an increase in fibrotic lineage cells and pro-inflammatory cells within regenerative tissue. Furthermore, our analysis of differentially expressed genes and associated signaling pathway at the single-cell level highlighted impaired angiogenesis as a central pathway in critical size bone defects, notably influenced by reduction of Spp1 and Cxcl12 expression. This deficiency was particularly pronounced in progenitor lineage cells and myeloid lineage cells, underscoring its significance in the regeneration process. In response to these findings, we developed an innovative approach to enhance bone regeneration in critical size bone defects. Our fabrication process involves the integration of electrospun PCL fibers with electrosprayed PLGA microspheres carrying Spp1 and Cxcl12. This design allows for the gradual release of Spp1 and Cxcl12 in vitro and in vivo. To evaluate the efficacy of our approach, we locally applied PCL scaffolds loaded with Spp1 and Cxcl12 in a murine model of critical size bone defects. Our results demonstrated restored angiogenesis, accelerated bone regeneration, alleviated pain responses and improved mobility in treated mice.
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Affiliation(s)
- Liang Fang
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Zhongting Liu
- Department of Mechanical Engineering & Materials Sciences, School of Engineering, Washington University, St. Louis, MO, 63110, USA
| | - Cuicui Wang
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, MO, 63110, USA
- Department of Developmental Biology, Center of Regenerative Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Meng Shi
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Yonghua He
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Aiwu Lu
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Xiaofei Li
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Tiandao Li
- Department of Developmental Biology, Center of Regenerative Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Donghui Zhu
- Department of Biomedical Engineering, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Bo Zhang
- Department of Developmental Biology, Center of Regenerative Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Jianjun Guan
- Department of Mechanical Engineering & Materials Sciences, School of Engineering, Washington University, St. Louis, MO, 63110, USA
| | - Jie Shen
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, MO, 63110, USA
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Wang X, Ge Q, Zeng Q, Zou K, Bao Z, Ying J, Wu Z, Jin H, Chen J, Xu T. Dnmt3b ablation affects fracture repair process by regulating apoptosis. BMC Musculoskelet Disord 2024; 25:180. [PMID: 38413962 PMCID: PMC10900613 DOI: 10.1186/s12891-024-07283-7] [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: 11/26/2023] [Accepted: 02/14/2024] [Indexed: 02/29/2024] Open
Abstract
PURPOSE Previous studies have shown that DNA methyltransferase 3b (Dnmt3b) is the only Dnmt responsive to fracture repair and Dnmt3b ablation in Prx1-positive stem cells and chondrocyte cells both delayed fracture repair. Our study aims to explore the influence of Dnmt3b ablation in Gli1-positive stem cells in fracture healing mice and the underlying mechanism. METHODS We generated Gli1-CreERT2; Dnmt3bflox/flox (Dnmt3bGli1ER) mice to operated tibia fracture. Fracture callus tissues of Dnmt3bGli1ER mice and control mice were collected and analyzed by X-ray, micro-CT, biomechanical testing, histopathology and TUNEL assay. RESULTS The cartilaginous callus significantly decrease in ablation of Dnmt3b in Gli1-positive stem cells during fracture repair. The chondrogenic and osteogenic indicators (Sox9 and Runx2) in the fracture healing tissues in Dnmt3bGli1ER mice much less than control mice. Dnmt3bGli1ER mice led to delayed bone callus remodeling and decreased biomechanical properties of the newly formed bone during fracture repair. Both the expressions of Caspase-3 and Caspase-8 were upregulated in Dnmt3bGli1ER mice as well as the expressions of BCL-2. CONCLUSIONS Our study provides an evidence that Dnmt3b ablation Gli1-positive stem cells can affect fracture healing and lead to poor fracture healing by regulating apoptosis to decrease chondrocyte hypertrophic maturation.
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Affiliation(s)
- Xu Wang
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Qinwen Ge
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Qinghe Zeng
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Kaiao Zou
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Zhengsheng Bao
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Jun Ying
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Zhen Wu
- Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang Province, China
| | - Hongting Jin
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China.
| | - Jiali Chen
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China.
| | - Taotao Xu
- Institute of Orthopedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang Province, China.
- The First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China.
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Zhang P, Feng B, Dai G, Niu K, Zhang L. FOXC1 Promotes Osteoblastic Differentiation of Bone Marrow Mesenchymal Stem Cells via the Dnmt3b/CXCL12 Axis. Biochem Genet 2024; 62:176-192. [PMID: 37306827 DOI: 10.1007/s10528-023-10403-y] [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: 11/16/2022] [Accepted: 05/12/2023] [Indexed: 06/13/2023]
Abstract
Bone defects have remained a clinical problem in current orthopedics. Bone marrow mesenchymal stem cells (BM-MSCs) with multi-directional differentiation ability have become a research hotspot for repairing bone defects. In vitro and in vivo models were constructed, respectively. Alkaline phosphatase (ALP) staining and alizarin red staining were performed to detect osteogenic differentiation ability. Western blotting (WB) was used to detect the expression of osteogenic differentiation-related proteins. Serum inflammatory cytokine levels were detected by ELISA. Fracture recovery was evaluated by HE staining. The binding relationship between FOXC1 and Dnmt3b was verified by dual-luciferase reporter assay. The relationship between Dnmt3b and CXCL12 was explored by MSP and ChIP assays. FOXC1 overexpression promoted calcium nodule formation, upregulated osteogenic differentiation-related protein expression, promoted osteogenic differentiation, and decreased inflammatory factor levels in BM-MSCs, and promoted callus formation, upregulated osteogenic differentiation-related protein expression, and downregulated CXCL12 expression in the mouse model. Furthermore, FOXC1 targeted Dnmt3b, with Dnmt3b knockdown decreasing calcium nodule formation and downregulating osteogenic differentiation-related protein expression. Additionally, inhibiting Dnmt3b expression upregulated CXCL12 protein expression and inhibited CXCL12 methylation. Dnmt3b could be binded to CXCL12. CXCL12 overexpression attenuated the effects of FOXC1 overexpression and inhibited BM-MSCs osteogenic differentiation. This study confirmed that the FOXC1-mediated regulation of the Dnmt3b/CXCL12 axis had positive effects on the osteogenic differentiation of BM-MSCs.
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Affiliation(s)
- Peiguang Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Bo Feng
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Guangming Dai
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Kecheng Niu
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Lan Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China.
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Zhao D, Saiding Q, Li Y, Tang Y, Cui W. Bone Organoids: Recent Advances and Future Challenges. Adv Healthc Mater 2024; 13:e2302088. [PMID: 38079529 DOI: 10.1002/adhm.202302088] [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: 07/04/2023] [Revised: 11/23/2023] [Indexed: 12/21/2023]
Abstract
Bone defects stemming from tumorous growths, traumatic events, and diverse conditions present a profound conundrum in clinical practice and research. While bone has the inherent ability to regenerate, substantial bone anomalies require bone regeneration techniques. Bone organoids represent a new concept in this field, involving the 3D self-assembly of bone-associated stem cells guided in vitro with or without extracellular matrix material, resulting in a tissue that mimics the structural, functional, and genetic properties of native bone tissue. Within the scientific panorama, bone organoids ascend to an esteemed status, securing significant experimental endorsement. Through a synthesis of current literature and pioneering studies, this review offers a comprehensive survey of the bone organoid paradigm, delves into the quintessential architecture and ontogeny of bone, and highlights the latest progress in bone organoid fabrication. Further, existing challenges and prospective directions for future research are identified, advocating for interdisciplinary collaboration to fully harness the potential of this burgeoning domain. Conclusively, as bone organoid technology continues to mature, its implications for both clinical and research landscapes are poised to be profound.
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Affiliation(s)
- Ding Zhao
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Qimanguli Saiding
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yihan Li
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yunkai Tang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
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Wang Y, Li HY, Guan SY, Yu SH, Zhou YC, Zheng LW, Zhang J. Different Sources of Bone Marrow Mesenchymal Stem Cells: A Comparison of Subchondral, Mandibular, and Tibia Bone-derived Mesenchymal Stem Cells. Curr Stem Cell Res Ther 2024; 19:1029-1041. [PMID: 37937557 DOI: 10.2174/011574888x260686231023091127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/04/2023] [Accepted: 09/01/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND Stem cell properties vary considerably based on the source and tissue site of mesenchymal stem cells (MSCs). The mandibular condyle is a unique kind of craniofacial bone with a special structure and a relatively high remodeling rate. MSCs here may also be unique to address specific physical needs. OBJECTIVE The aim of this study was to compare the proliferation and multidirectional differentiation potential among MSCs derived from the tibia (TMSCs), mandibular ramus marrow (MMSCs), and condylar subchondral bone (SMSCs) of rats in vitro. METHODS Cell proliferation and migration were assessed by CCK-8, laser confocal, and cell scratch assays. Histochemical staining and real-time PCR were used to evaluate the multidirectional differentiation potential and DNA methylation and histone deacetylation levels. RESULTS The proliferation rate and self-renewal capacity of SMSCs were significantly higher than those of MMSCs and TMSCs. Moreover, SMSCs possessed significantly higher mineralization and osteogenic differentiation potential. Dnmt2, Dnmt3b, Hdac6, Hdac7, Hdac9, and Hdac10 may be instrumental in the osteogenesis of SMSCs. In addition, SMSCs are distinct from MMSCs and TMSCs with lower adipogenic differentiation and chondrogenic differentiation potential. The multidirectional differentiation capacities of TMSCs were exactly the opposite of those of SMSCs, and the results of MMSCs were intermediate. CONCLUSION This research offers a new paradigm in which SMSCs could be a useful source of stem cells for further application in stem cell-based medical therapies due to their strong cell renewal and osteogenic capacity.
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Affiliation(s)
- Yu Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hong-Yu Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shu-Yuan Guan
- Department of Stomatology, Medical College, Dalian University, Dalian, 116622, Liaoning, China
| | - Si-Han Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ya-Chuan Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Li-Wei Zheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jun Zhang
- Yunnan Key Laboratory of Stomatology, Kunming Medical University School and Hospital of Stomatology, Kunming, China
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Zhang P, Feng Q, Chen W, Bai X. Catalpol antagonizes LPS-mediated inflammation and promotes osteoblast differentiation through the miR-124-3p/DNMT3b/TRAF6 axis. Acta Histochem 2024; 126:152118. [PMID: 38039796 DOI: 10.1016/j.acthis.2023.152118] [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: 06/30/2023] [Accepted: 11/13/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Dysregulated inflammation and osteoblast differentiation are implicated in osteoporosis. Exploring the activity of catalpol in inflammation and osteoblast differentiation deepens the understanding of osteoporosis pathogenesis. METHODS LPS was used to treated hFOB1.19 cells to induce inflammation and repress osteoblast differentiation. FOB1.19 cells were induced in osteoblast differentiation medium and treated with LPS and catalpol. Cell viability was assessed using CCK-8. ALP and Alizarin red S staining were conducted for analyzing osteoblast differentiation. The levels of IL-1β, TNF-α and IL-6 were examined by ELISA. The methylation of TRAF6 promoter was examined through MS-PCR. The binding of miR-124-3p to DNMT3b and DNMT3b to TRAF6 promoter was determined with dual luciferase reporter and ChIP assays. RESULTS LPS enhanced secretion of inflammatory cytokines and suppressed osteoblast differentiation. MiR-124-3p and TRAF6 were upregulated and DNMT3b was downregulated in LPS-induced hFOB1.19 cells. Catalpol protected hFOB1.19 cells against LPS via inhibiting inflammation and promoting osteoblast differentiation. MiR-124-3p targeted DNMT3b, and its overexpression abrogated catalpol-mediated protection in LPS-treated hFOB1.19 cells. In addition, DNMT3b methylated TRAF6 promoter to restrain its expression. Catalpol exerted protective effects through suppression of the miR-124-3p/DNMT3b/TRAF6 axis in hFOB1.19 cells. CONCLUSION Catalpol antagonizes LPS-mediated inflammation and suppressive osteoblast differentiation via controlling the miR-124-3p/DNMT3b/TRAF6 axis.
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Affiliation(s)
- Pan Zhang
- Department of Orthopaedics, The People's Hospital of Liaoning Province, Shenyang 110016, Liaoning, People's Republic of China
| | - Qun Feng
- Department of Orthopaedics, The People's Hospital of Liaoning Province, Shenyang 110016, Liaoning, People's Republic of China
| | - Wenxiao Chen
- Department of Orthopaedics, The People's Hospital of Liaoning Province, Shenyang 110016, Liaoning, People's Republic of China
| | - Xizhuang Bai
- Department of Orthopaedics, The People's Hospital of Liaoning Province, Shenyang 110016, Liaoning, People's Republic of China.
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Xiao D, Fang L, Liu Z, He Y, Ying J, Qin H, Lu A, Shi M, Li T, Zhang B, Guan J, Wang C, Abu-Amer Y, Shen J. DNA methylation-mediated Rbpjk suppression protects against fracture nonunion caused by systemic inflammation. J Clin Invest 2023; 134:e168558. [PMID: 38051594 PMCID: PMC10849763 DOI: 10.1172/jci168558] [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: 01/04/2023] [Accepted: 11/30/2023] [Indexed: 12/07/2023] Open
Abstract
Challenging skeletal repairs are frequently seen in patients experiencing systemic inflammation. To tackle the complexity and heterogeneity of the skeletal repair process, we performed single-cell RNA sequencing and revealed that progenitor cells were one of the major lineages responsive to elevated inflammation and this response adversely affected progenitor differentiation by upregulation of Rbpjk in fracture nonunion. We then validated the interplay between inflammation (via constitutive activation of Ikk2, Ikk2ca) and Rbpjk specifically in progenitors by using genetic animal models. Focusing on epigenetic regulation, we identified Rbpjk as a direct target of Dnmt3b. Mechanistically, inflammation decreased Dnmt3b expression in progenitor cells, consequently leading to Rbpjk upregulation via hypomethylation within its promoter region. We also showed that Dnmt3b loss-of-function mice phenotypically recapitulated the fracture repair defects observed in Ikk2ca-transgenic mice, whereas Dnmt3b-transgenic mice alleviated fracture repair defects induced by Ikk2ca. Moreover, Rbpjk ablation restored fracture repair in both Ikk2ca mice and Dnmt3b loss-of-function mice. Altogether, this work elucidates a common mechanism involving a NF-κB/Dnmt3b/Rbpjk axis within the context of inflamed bone regeneration. Building on this mechanistic insight, we applied local treatment with epigenetically modified progenitor cells in a previously established mouse model of inflammation-mediated fracture nonunion and showed a functional restoration of bone regeneration under inflammatory conditions through an increase in progenitor differentiation potential.
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Affiliation(s)
- Ding Xiao
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
- The Second Xiangya Hospital, Central South University, Changsha, China
| | - Liang Fang
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
| | - Zhongting Liu
- Department of Mechanical Engineering & Materials Sciences, School of Engineering and
| | - Yonghua He
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
| | - Jun Ying
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
| | - Haocheng Qin
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
- The Second Xiangya Hospital, Central South University, Changsha, China
| | - Aiwu Lu
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
| | - Meng Shi
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
| | - Tiandao Li
- Department of Developmental Biology, Center of Regenerative Medicine, Washington University, St. Louis, Missouri, USA
| | - Bo Zhang
- Department of Developmental Biology, Center of Regenerative Medicine, Washington University, St. Louis, Missouri, USA
| | - Jianjun Guan
- Department of Mechanical Engineering & Materials Sciences, School of Engineering and
| | - Cuicui Wang
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
- Department of Developmental Biology, Center of Regenerative Medicine, Washington University, St. Louis, Missouri, USA
| | - Yousef Abu-Amer
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
- Shriners Hospital for Children, St. Louis, Missouri, USA
| | - Jie Shen
- Department of Orthopaedic Surgery, School of Medicine, Washington University, St. Louis, Missouri, USA
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Wang Z, Yi X, Jian C, Qi B, Liu Q, Li Z, Yu A. Sustained notch signaling inhibition with a gamma-secretase inhibitor prevents traumatic heterotopic ossification. J Orthop Translat 2023; 42:31-42. [PMID: 37575153 PMCID: PMC10415638 DOI: 10.1016/j.jot.2023.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/23/2023] [Accepted: 06/30/2023] [Indexed: 08/15/2023] Open
Abstract
Background Traumatic heterotopic ossification (THO) is a devastating sequela following traumatic injuries and orthopedic surgeries. To date, the exact molecular mechanism of THO formation is still unclear, which hinders the development of effective treatments. The process of THO formation is believed to recapitulate a series of spatiotemporal cellular and signaling events that occur during skeletal development. The Notch signaling pathway is a critical genetic regulator in embryological bone development and fracture healing. However, few data are available concerning whether Notch signaling regulates THO development and maturation. Methods We firstly detected the expressions of Notch target genes in both mouse and human THO samples with quantitative RT-PCR and immunohistochemistry (IHC). Then, tissue-resident mesenchymal progenitor cells (TMPCs) were isolated, and the abilities of the proliferation and osteogenic and chondrogenic differentiation of TMPCs were examined under the intervention of the gamma-secretase inhibitor-DAPT at different time points. Finally, DAPT was also administrated in THO mice by burn and Achilles tenotomy injury, and ectopic cartilage and bone formation were monitored by histology and micro-CT. Results Several Notch target genes were upregulated in both mouse and human THO tissues. Sustained Notch signaling inhibition by DAPT reduced proliferation, osteogenic and chondrogenic differentiation of TMPCs in a time-dependent manner. Moreover, DAPT administration within 3 weeks could inhibit ectopic cartilage and bone formation in a mouse THO model without affecting the total body bone mass. Conclusions The Notch signaling serves as an important therapeutic target during THO formation. And sustained gamma-secretase inhibition by DAPT has great potential in repressing chondrogenic and osteogenic differentiation of TMPCs, as well as inhibited ectopic cartilage and bone formation in vivo. The translational potential of this article Sustained Notch inhibition via systemic DAPT (or other similar gamma-secretase inhibitors) administration has promising clinical utility for inhibiting THO formation, providing new insight into THO prophylaxis and treatment.
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Affiliation(s)
- Zheng Wang
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Xinzeyu Yi
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Chao Jian
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Baiwen Qi
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Qiaoyun Liu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Zonghuan Li
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
| | - Aixi Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Hubei Clinical Medical Research Center of Trauma and Microsurgery, Wuhan, Hubei, China
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10
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Collagen Modulates the Biological Characteristics of WJ-MSCs in Basal and Osteoinduced Conditions. Stem Cells Int 2022; 2022:2116367. [PMID: 36071734 PMCID: PMC9441371 DOI: 10.1155/2022/2116367] [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: 03/21/2022] [Accepted: 08/10/2022] [Indexed: 12/04/2022] Open
Abstract
Transcriptomic analysis revealed mesenchymal stem/stromal cells (MSCs) from various origins exhibited distinct gene and protein expression profiles dictating their biological properties. Although collagen type 1 (COL) has been widely studied in bone marrow MSCs, its role in regulating cell fate of Wharton jelly- (WJ-) MSCs is not well understood. In this study, we investigated the effects of collagen on the characteristics of WJ-MSCs associated with proliferation, surface markers, adhesion, migration, self-renewal, and differentiation capabilities through gene expression studies. The isolated WJ-MSCs expressed positive surface markers but not negative markers. Gene expression profiles showed that COL not only maintained the pluripotency, self-renewal, and immunophenotype of WJ-MSCs but also primed cells toward lineage differentiations by upregulating BMP2 and TGFB1 genes. Upon osteoinduction, WJ-MSC-COL underwent osteogenesis by switching on the transcription of BMP6/7 and TGFB3 followed by activation of downstream target genes such as INS, IGF1, RUNX2, and VEGFR2 through p38 signalling. This molecular event was also accompanied by hypomethylation at the OCT4 promoter and increase of H3K9 acetylation. In conclusion, COL provides a conducive cellular environment in priming WJ-MSCs that undergo a lineage specification upon receiving an appropriate signal from extrinsic factor. These findings would contribute to better control of fate determination of MSCs for therapeutic applications related to bone disease.
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11
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Yang X, Tian S, Fan L, Niu R, Yan M, Chen S, Zheng M, Zhang S. Integrated regulation of chondrogenic differentiation in mesenchymal stem cells and differentiation of cancer cells. Cancer Cell Int 2022; 22:169. [PMID: 35488254 PMCID: PMC9052535 DOI: 10.1186/s12935-022-02598-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/19/2022] [Indexed: 11/15/2022] Open
Abstract
Chondrogenesis is the formation of chondrocytes and cartilage tissues and starts with mesenchymal stem cell (MSC) recruitment and migration, condensation of progenitors, chondrocyte differentiation, and maturation. The chondrogenic differentiation of MSCs depends on co-regulation of many exogenous and endogenous factors including specific microenvironmental signals, non-coding RNAs, physical factors existed in culture condition, etc. Cancer stem cells (CSCs) exhibit self-renewal capacity, pluripotency and cellular plasticity, which have the potential to differentiate into post-mitotic and benign cells. Accumulating evidence has shown that CSCs can be induced to differentiate into various benign cells including adipocytes, fibrocytes, osteoblast, and so on. Retinoic acid has been widely used in the treatment of acute promyelocytic leukemia. Previous study confirmed that polyploid giant cancer cells, a type of cancer stem-like cells, could differentiate into adipocytes, osteocytes, and chondrocytes. In this review, we will summarize signaling pathways and cytokines in chondrogenic differentiation of MSCs. Understanding the molecular mechanism of chondrogenic differentiation of CSCs and cancer cells may provide new strategies for cancer treatment.
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Affiliation(s)
- Xiaohui Yang
- Nankai University School of Medicine, Nankai University, Tianjin, 300071, People's Republic of China
| | - Shifeng Tian
- Graduate School, Tianjin Medical University, Tianjin, 300070, People's Republic of China
| | - Linlin Fan
- Department of Pathology, Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Rui Niu
- Department of Pathology, Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Man Yan
- Department of Pathology, Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Shuo Chen
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, People's Republic of China
| | - Minying Zheng
- Department of Pathology, Tianjin Union Medical Center, Tianjin, 300071, People's Republic of China
| | - Shiwu Zhang
- Department of Pathology, Tianjin Union Medical Center, Tianjin, 300071, People's Republic of China.
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12
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Sun K, Wang C, Xiao J, Brodt MD, Yuan L, Yang T, Alippe Y, Hu H, Hao D, Abu-Amer Y, Silva MJ, Shen J, Mbalaviele G. Fracture healing is delayed in the absence of gasdermin - interleukin-1 signaling. eLife 2022; 11:75753. [PMID: 35244027 PMCID: PMC8923664 DOI: 10.7554/elife.75753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/27/2022] [Indexed: 11/13/2022] Open
Abstract
Amino-terminal fragments from proteolytically cleaved gasdermins (GSDMs) form plasma membrane pores that enable the secretion of interleukin-1β (IL-1β) and IL-18. Excessive GSDM-mediated pore formation can compromise the integrity of the plasma membrane thereby causing the lytic inflammatory cell death, pyroptosis. We found that GSDMD and GSDME were the only GSDMs that were readily expressed in bone microenvironment. Therefore, we tested the hypothesis that GSDMD and GSDME are implicated in fracture healing owing to their role in the obligatory inflammatory response following injury. We found that bone callus volume and biomechanical properties of injured bones were significantly reduced in mice lacking either GSDM compared with wild-type (WT) mice, indicating that fracture healing was compromised in mutant mice. However, compound loss of GSDMD and GSDME did not exacerbate the outcomes, suggesting shared actions of both GSDMs in fracture healing. Mechanistically, bone injury induced IL-1β and IL-18 secretion in vivo, a response that was mimicked in vitro by bone debris and ATP, which function as inflammatory danger signals. Importantly, the secretion of these cytokines was attenuated in conditions of GSDMD deficiency. Finally, deletion of IL-1 receptor reproduced the phenotype of Gsdmd or Gsdme deficient mice, implying that inflammatory responses induced by the GSDM-IL-1 axis promote bone healing after fracture.
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Affiliation(s)
- Kai Sun
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, United States
| | - Chun Wang
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, United States
| | - Jianqiu Xiao
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, United States
| | - Michael D Brodt
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, United States
| | - Luorongxin Yuan
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, United States
| | - Tong Yang
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, United States
| | - Yael Alippe
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, United States
| | - Huimin Hu
- Department of Spine Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Dingjun Hao
- Department of Spine Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yousef Abu-Amer
- Department of Orthopaedic Surgery, Washington University School of Medicine, Saint Louis, United States
| | - Matthew J Silva
- Department of Orthopaedic Surgery, Washington University School of Medicine, Saint Louis, United States
| | - Jie Shen
- Department of Orthopaedic Surgery, Washington University School of Medicine, Saint Louis, United States
| | - Gabriel Mbalaviele
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, United States
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13
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Parodi C, Di Fede E, Peron A, Viganò I, Grazioli P, Castiglioni S, Finnell RH, Gervasini C, Vignoli A, Massa V. Chromatin Imbalance as the Vertex Between Fetal Valproate Syndrome and Chromatinopathies. Front Cell Dev Biol 2021; 9:654467. [PMID: 33959609 PMCID: PMC8093873 DOI: 10.3389/fcell.2021.654467] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 04/01/2021] [Indexed: 12/12/2022] Open
Abstract
Prenatal exposure to valproate (VPA), an antiepileptic drug, has been associated with fetal valproate spectrum disorders (FVSD), a clinical condition including congenital malformations, developmental delay, intellectual disability as well as autism spectrum disorder, together with a distinctive facial appearance. VPA is a known inhibitor of histone deacetylase which regulates the chromatin state. Interestingly, perturbations of this epigenetic balance are associated with chromatinopathies, a heterogeneous group of Mendelian disorders arising from mutations in components of the epigenetic machinery. Patients affected from these disorders display a plethora of clinical signs, mainly neurological deficits and intellectual disability, together with distinctive craniofacial dysmorphisms. Remarkably, critically examining the phenotype of FVSD and chromatinopathies, they shared several overlapping features that can be observed despite the different etiologies of these disorders, suggesting the possible existence of a common perturbed mechanism(s) during embryonic development.
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Affiliation(s)
- Chiara Parodi
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Elisabetta Di Fede
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Angela Peron
- Human Pathology and Medical Genetics, ASST Santi Paolo e Carlo, San Paolo Hospital, Milan, Italy.,Child Neuropsychiatry Unit-Epilepsy Center, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo e Carlo, Università degli Studi di Milano, Milan, Italy.,Division of Medical Genetics, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Ilaria Viganò
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Paolo Grazioli
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Silvia Castiglioni
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Richard H Finnell
- Departments of Molecular and Cellular Biology, Molecular and Human Genetics and Medicine, Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, United States
| | - Cristina Gervasini
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy.,"Aldo Ravelli" Center for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milan, Italy
| | - Aglaia Vignoli
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Valentina Massa
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy.,"Aldo Ravelli" Center for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milan, Italy
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14
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Chakraborty S, Sinha S, Sengupta A. Emerging trends in chromatin remodeler plasticity in mesenchymal stromal cell function. FASEB J 2020; 35:e21234. [PMID: 33337557 DOI: 10.1096/fj.202002232r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/10/2020] [Accepted: 11/13/2020] [Indexed: 12/13/2022]
Abstract
Emerging evidences highlight importance of epigenetic regulation and their integration with transcriptional and cell signaling machinery in determining tissue resident adult pluripotent mesenchymal stem/stromal cell (MSC) activity, lineage commitment, and multicellular development. Histone modifying enzymes and large multi-subunit chromatin remodeling complexes and their cell type-specific plasticity remain the central defining features of gene regulation and establishment of tissue identity. Modulation of transcription factor expression gradient ex vivo and concomitant flexibility of higher order chromatin architecture in response to signaling cues are exciting approaches to regulate MSC activity and tissue rejuvenation. Being an important constituent of the adult bone marrow microenvironment/niche, pathophysiological perturbation in MSC homeostasis also causes impaired hematopoietic stem/progenitor cell function in a non-cell autonomous mechanism. In addition, pluripotent MSCs can function as immune regulatory cells, and they reside at the crossroad of innate and adaptive immune response pathways. Research in the past few years suggest that MSCs/stromal fibroblasts significantly contribute to the establishment of immunosuppressive microenvironment in shaping antitumor immunity. Therefore, it is important to understand mesenchymal stromal epigenome and transcriptional regulation to leverage its applications in regenerative medicine, epigenetic memory-guided trained immunity, immune-metabolic rewiring, and precision immune reprogramming. In this review, we highlight the latest developments and prospects in chromatin biology in determining MSC function in the context of lineage commitment and immunomodulation.
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Affiliation(s)
- Sayan Chakraborty
- Stem Cell & Leukemia Laboratory, Cancer Biology & Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Translational Research Unit of Excellence (TRUE), Kolkata, India
| | - Sayantani Sinha
- Stem Cell & Leukemia Laboratory, Cancer Biology & Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Translational Research Unit of Excellence (TRUE), Kolkata, India
| | - Amitava Sengupta
- Stem Cell & Leukemia Laboratory, Cancer Biology & Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Translational Research Unit of Excellence (TRUE), Kolkata, India
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15
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Radix Rehmanniae Praeparata promotes bone fracture healing through activation of TGF-β signaling in mesenchymal progenitors. Biomed Pharmacother 2020; 130:110581. [DOI: 10.1016/j.biopha.2020.110581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/21/2020] [Accepted: 07/26/2020] [Indexed: 02/07/2023] Open
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