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Duan G, Lu YF, Chen HL, Zhu ZQ, Yang S, Wang YQ, Wang JQ, Jia XH. Smurf1-targeting microRNA-136-5p-modified bone marrow mesenchymal stem cells combined with 3D-printed β-tricalcium phosphate scaffolds strengthen osteogenic activity and alleviate bone defects. Kaohsiung J Med Sci 2024. [PMID: 38820598 DOI: 10.1002/kjm2.12847] [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: 10/18/2023] [Revised: 04/12/2024] [Accepted: 04/25/2024] [Indexed: 06/02/2024] Open
Abstract
Suitable biomaterials with seed cells have promising potential to repair bone defects. However, bone marrow mesenchymal stem cells (BMSCs), one of the most common seed cells used in tissue engineering, cannot differentiate efficiently and accurately into functional osteoblasts. In view of this, a new tissue engineering technique combined with BMSCs and scaffolds is a major task for bone defect repair. Lentiviruses interfering with miR-136-5p or Smurf1 expression were transfected into BMSCs. The effects of miR-136-5p or Smurf1 on the osteogenic differentiation (OD) of BMSCs were evaluated by measuring alkaline phosphatase activity and calcium deposition. Then, the targeting relationship between miR-136-5p and Smurf1 was verified by bioinformatics website analysis and dual luciferase reporter assay. Then, a rabbit femoral condyle bone defect model was established. miR-136-5p/BMSCs/β-TCP scaffold was implanted into the defect, and the repair of the bone defect was detected by Micro-CT and HE staining. Elevating miR-136-5p-3p or suppressing Smurf1 could stimulate OD of BMSCs. miR-136-5p negatively regulated Smurf1 expression. Overexpressing Smurf1 reduced the promoting effect of miR-136-5p on the OD of BMSCs. miR-136-5p/BMSCs/β-TCP could strengthen bone density in the defected area and accelerate bone repair. SmurF1-targeting miR-136-5p-modified BMSCs combined with 3D-printed β-TCP scaffolds can strengthen osteogenic activity and alleviate bone defects.
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Affiliation(s)
- Gang Duan
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ya-Fei Lu
- Graduate School of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hong-Liang Chen
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Zi-Qiang Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Shuo Yang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yun-Qing Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jian-Qiang Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xing-Hai Jia
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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Insua A, Galindo-Moreno P, Miron RJ, Wang HL, Monje A. Emerging factors affecting peri-implant bone metabolism. Periodontol 2000 2024; 94:27-78. [PMID: 37904311 DOI: 10.1111/prd.12532] [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: 05/03/2023] [Revised: 08/05/2023] [Accepted: 09/10/2023] [Indexed: 11/01/2023]
Abstract
Implant dentistry has evolved to the point that standard implant osseointegration is predictable. This is attributed in part to the advancements in material sciences that have led toward improvements in implant surface technology and characteristics. Nonetheless, there remain several cases where implant therapy fails (specifically at early time points), most commonly attributed to factors affecting bone metabolism. Among these patients, smokers are known to have impaired bone metabolism and thus be subject to higher risks of early implant failure and/or late complications related to the stability of the peri-implant bone and mucosal tissues. Notably, however, emerging data have unveiled other critical factors affecting osseointegration, namely, those related to the metabolism of bone tissues. The aim of this review is to shed light on the effects of implant-related factors, like implant surface or titanium particle release; surgical-related factors, like osseodensification or implanted biomaterials; various drugs, like selective serotonin reuptake inhibitors, proton pump inhibitors, anti-hypertensives, nonsteroidal anti-inflammatory medication, and statins, and host-related factors, like smoking, diet, and metabolic syndrome on bone metabolism, and aseptic peri-implant bone loss. Despite the infectious nature of peri-implant biological complications, these factors must be surveyed for the effective prevention and management of peri-implantitis.
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Affiliation(s)
- Angel Insua
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Pablo Galindo-Moreno
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Department of Oral Surgery and Implant Dentistry, University of Granada, Granada, Spain
| | - Richard J Miron
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Hom-Lay Wang
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Alberto Monje
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Department of Periodontology, University of Bern, Bern, Switzerland
- Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
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Takami K, Okamoto K, Etani Y, Hirao M, Miyama A, Okamura G, Goshima A, Miura T, Kurihara T, Fukuda Y, Kanamoto T, Nakata K, Okada S, Ebina K. Anti-NF-κB peptide derived from nuclear acidic protein attenuates ovariectomy-induced osteoporosis in mice. JCI Insight 2023; 8:e171962. [PMID: 37991021 PMCID: PMC10721323 DOI: 10.1172/jci.insight.171962] [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: 05/03/2023] [Accepted: 10/10/2023] [Indexed: 11/23/2023] Open
Abstract
NF-κB is a transcription factor that is activated with aging. It plays a key role in the development of osteoporosis by promoting osteoclast differentiation and inhibiting osteoblast differentiation. In this study, we developed a small anti-NF-κB peptide called 6A-8R from a nuclear acidic protein (also known as macromolecular translocation inhibitor II, Zn2+-binding protein, or parathymosin) that inhibits transcriptional activity of NF-κB without altering its nuclear translocation and binding to DNA. Intraperitoneal injection of 6A-8R attenuated ovariectomy-induced osteoporosis in mice by inhibiting osteoclast differentiation, promoting osteoblast differentiation, and inhibiting sclerostin production by osteocytes in vivo with no apparent side effects. Conversely, in vitro, 6A-8R inhibited osteoclast differentiation by inhibiting NF-κB transcriptional activity, promoted osteoblast differentiation by promoting Smad1 phosphorylation, and inhibited sclerostin expression in osteocytes by inhibiting myocyte enhancer factors 2C and 2D. These findings suggest that 6A-8R has the potential to be an antiosteoporotic therapeutic agent with uncoupling properties.
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Affiliation(s)
- Kenji Takami
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Orthopaedic Surgery, Nippon Life Hospital, Nishi-ku, Osaka, Japan
| | - Kazuki Okamoto
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yuki Etani
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Makoto Hirao
- Department of Orthopaedic Surgery, National Hospital Organization Osaka Minami Medical Center, Kawachinagano, Osaka, Japan
| | - Akira Miyama
- Department of Orthopaedic Surgery, National Hospital Organization Osaka Toneyama Medical Center, Toyonaka, Osaka, Japan
| | - Gensuke Okamura
- Department of Orthopaedic Surgery, Osaka Rosai Hospital, Kita-ku, Sakai, Japan
| | - Atsushi Goshima
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Taihei Miura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takuya Kurihara
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yuji Fukuda
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | | | - Ken Nakata
- Department of Health and Sport Sciences, and
| | - Seiji Okada
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kosuke Ebina
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Musculoskeletal Regenerative Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Zhong W, Feng L, Tian W, Qu H, Xu H, Ning K, Liu L, Liu W, Gong X, Chen H. SMURF1 inhibits the Th17 and Th17.1 polarization and improves the Treg/Th17 imbalance in systemic lupus erythematosus through the ubiquitination of RORγt. Mol Immunol 2023; 157:186-194. [PMID: 37054520 DOI: 10.1016/j.molimm.2023.03.024] [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: 06/13/2022] [Revised: 03/03/2023] [Accepted: 03/26/2023] [Indexed: 04/15/2023]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease. This study aimed to investigate the role of SMAD specific E3 ubiquitin protein ligase 1 (SMURF1) in the Th17 and Th17.1 differentiation and Treg/Th17 imbalance, which are major factors contributing to the pathogenesis of SLE. SLE patients and healthy individuals were recruited to detect the SMURF1 levels in naïve CD4+ cells from peripheral blood. Purified and expanded naïve CD4+ T cells were employed to evaluate the effects of SMURF1 on Th17 and Th17.1 polarization in vitro. MRL/lpr lupus model was employed to explore the disease phenotype as well as Treg/Th17 balance in vivo. The results showed that SMURF1 was down-regulated in naïve CD4+ T cells in peripheral blood of patients with SLE and in spleen of MRL/lpr mice. SMURF1 overexpression suppressed the polarization of naïve CD4+ T cells toward Th17 and Th17.1 phenotype and down-regulated the expression of retinoid-related orphan receptor-gammat (RORγt). Subsequently, SMURF1 down-regulation aggravated the disease phenotype, inflammation, and the Treg/Th17 imbalance in MRL/lpr mice. Furthermore, we found that SMURF overexpression promoted the ubiquitination and decreases the stability of RORγt. In conclusion, SMURF1 inhibited the polarization of Th17 and Th17.1 cells and improved the Treg/Th17 imbalance in SLE, which was mediated as least partly by the ubiquitination of RORγt.
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Affiliation(s)
- Wei Zhong
- Department of Rheumatology and Immunology, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China; Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China
| | - Leheng Feng
- Department of Rheumatology and Immunology, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China; Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China
| | - Wei Tian
- Department of Rheumatology and Immunology, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China; Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China
| | - Hongbo Qu
- Department of Rheumatology and Immunology, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China; Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China
| | - Haibo Xu
- Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China; Department of Endocrinology, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China
| | - Ke Ning
- Department of International Medical Service, Affiliated Zhongshan Hospital of Dalian University, Dalian City, Liaoning Province, PR China
| | - Li Liu
- Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China; Department of Imaging, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China
| | - Wei Liu
- Department of Rheumatology and Immunology, Qinhuangdao Jungong Hospital, Qinhuangdao City, Hebei Province, PR China
| | - Xiaowei Gong
- Department of Rheumatology and Immunology, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China; Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China
| | - Hong Chen
- Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar City, Heilongjiang Province, PR China; TCM Geriatric Department, The First Hospital of Qiqihar, Qiqihar City, Heilongjiang Province, PR China; Heilongjiang Academy of Traditional Chinese Medicine, Harbin City, Heilongjiang Province, PR China.
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5
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Biedermann L, Bandick E, Ren Y, Tsitsilonis S, Donner S, Müller M, Duda G, Perka C, Kienzle A. Inflammation of Bone in Patients with Periprosthetic Joint Infections of the Knee. JB JS Open Access 2023; 8:JBJSOA-D-22-00101. [PMID: 36698987 PMCID: PMC9831161 DOI: 10.2106/jbjs.oa.22.00101] [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] [Indexed: 01/12/2023] Open
Abstract
Despite the general success of total knee arthroplasty (TKA), addressing periprosthetic joint infection (PJI) and the resulting long-term complications is a growing medical need given the aging population and the increasing demand for arthroplasty. A larger proportion of patients face revision surgery because of the long-term complication of aseptic loosening despite clearance of the infection. The pathomechanisms leading to prosthetic loosening are not understood as it has been widely assumed that the bone stock recovers after explantation revision surgery. While clinical observations suggest a reduced osteogenic potential in patients with PJI, knowledge regarding the relevant biology is sparse. In the present study, we investigated the inflammatory impact of PJI on the bone and bone marrow in the vicinity of the joint. Additionally, we evaluated changes in the local inflammatory environment in a 2-stage exchange at both explantation and reimplantation. Methods In this study, we analyzed 75 human bone and bone-marrow specimens (obtained from 65 patients undergoing revision arthroplasty with cement for the treatment of PJI) for markers of inflammation. Samples were analyzed using hematoxylin and eosin overview staining, fluorescent immunohistochemical staining, flow cytometry, and polymerase chain reaction (PCR). Results Leukocyte prevalence was significantly elevated at explantation (femur, +218.9%; tibia, +134.2%). While leukocyte prevalence decreased at reimplantation (femur, -49.5%; tibia, -34.2%), the number of cells remained significantly higher compared with the control group (femur, +61.2%; tibia, +54.2%). Expression of inflammatory markers interleukin (IL)-1α (femur, +2,748.7%; tibia, +1,605.9%), IL-6 (femur, +2,062.5%; tibia, +2,385.7%), IL-10 (femur, +913.7%; tibia, +897.5%), IL-12 (femur, +386.1%; tibia, +52.5%), IL-18 (femur, +805.3%; tibia, +547.7%), and tumor necrosis factor (TNF)-α (femur, +296.9%; tibia, +220.9%) was significantly elevated at prosthesis explantation in both femoral and tibial specimens. Expression remained significantly elevated at reimplantation for all inflammatory markers except IL-12 compared with the control group. Conversely, there were only limited inflammatory changes in the bone marrow environment. Conclusions The present study demonstrated a strong and lasting upregulation of the proinflammatory environment in the joint-surrounding osseous scaffold in patients with PJI. Our data suggest that modulating the inflammatory environment has substantial potential to improve the clinical outcome in affected patients.
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Affiliation(s)
- Lara Biedermann
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Evgeniya Bandick
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Yi Ren
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Serafeim Tsitsilonis
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Stefanie Donner
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Michael Müller
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Georg Duda
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Charité—Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Carsten Perka
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Arne Kienzle
- Clinic for Orthopedics, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,Email for corresponding author:
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6
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Cui Y, Liu H, Tian Y, Fan Y, Li S, Wang G, Wang Y, Peng C, Wu D. Dual-functional composite scaffolds for inhibiting infection and promoting bone regeneration. Mater Today Bio 2022; 16:100409. [PMID: 36090611 PMCID: PMC9449864 DOI: 10.1016/j.mtbio.2022.100409] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 12/14/2022] Open
Abstract
The treatment of infected bone defects is an intractable problem in orthopedics. It comprises two critical parts, namely that of infection control and bone defect repair. According to these two core tasks during treatment, the ideal approach of simultaneously controlling infection and repairing bone defects is promising treatment strategy. Several engineered biomaterials and drug delivery systems with dual functions of anti-bacterial action and ostogenesis-promotion have been developed and demonstrated excellent therapeutic effects. Compared with the conventional treatment method, the dual-functional composite scaffold can provide one-stage treatment avoiding multiple surgeries, thereby remarkably simplifying the treatment process and reducing the treatment time, overcoming the disadvantages of conventional bone transplantation. In this review, the impaired bone repair ability and its specific mechanisms in the microenvironment of pathogen infection and excessive inflammation were analyzed, providing a theoretical basis for the treatment of infectious bone defects. Furthermore, we discussed the composite dual-functional scaffold composed of a combination of antibacterial and osteogenic material. Finally, a series of advanced drug delivery systems with antibacterial and bone-promoting capabilities were summarized and discussed. This review provides a comprehensive understanding for the microenvironment of infectious bone defects and leading-edge design strategies for the antibacterial and bone-promoting dual-function scaffold, thus providing clinically significant treatment methods for infectious bone defects. Antibacterial and bone-promoting dual-function scaffolds are ideal strategies for treatment of infectious bone defects. The effect of infection on bone repair was summarized in detail from four important aspects. A variety of dual-function scaffolds based on antibacterial and osteogenic materials were discussed. Dual-function drug delivery systems promoting repair of infectious bone defects by locally releasing functional agents. Leading-edge design strategies, challenges and prospects for dual-functional biomaterials were provided.
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7
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E3 Ubiquitin Ligases: Potential Therapeutic Targets for Skeletal Pathology and Degeneration. Stem Cells Int 2022; 2022:6948367. [PMID: 36203882 PMCID: PMC9532118 DOI: 10.1155/2022/6948367] [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: 04/20/2022] [Revised: 06/06/2022] [Accepted: 09/03/2022] [Indexed: 11/18/2022] Open
Abstract
The ubiquitination-proteasome system (UPS) is crucial in regulating a variety of cellular processes including proliferation, differentiation, and survival. Ubiquitin protein ligase E3 is the most critical molecule in the UPS system. Dysregulation of the UPS system is associated with many conditions. Over the past few decades, there have been an increasing number of studies focusing on the UPS system and how it affects bone metabolism. Multiple E3 ubiquitin ligases have been found to mediate osteogenesis or osteolysis through a variety of pathways. In this review, we describe the mechanisms of UPS, especially E3 ubiquitin ligases on bone metabolism. To date, many E3 ubiquitin ligases have been found to regulate osteogenesis or osteoclast differentiation. We review the classification of these E3 enzymes and the mechanisms that influence upstream and downstream molecules and transduction pathways. Finally, this paper reviews the discovery of the relevant UPS inhibitors, drug molecules, and noncoding RNAs so far and prospects the future research and treatment.
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8
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Wu MH, Hsu WB, Chen MH, Shi CS. Inhibition of Neddylation Suppresses Osteoclast Differentiation and Function In Vitro and Alleviates Osteoporosis In Vivo. Biomedicines 2022; 10:2355. [PMID: 36289618 PMCID: PMC9598818 DOI: 10.3390/biomedicines10102355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 09/20/2023] Open
Abstract
Neddylation, or the covalent addition of NEDD8 to specific lysine residue of proteins, is a reversible posttranslational modification, which regulates numerous biological functions; however, its involvement and therapeutic significance in osteoporosis remains unknown. Our results revealed that during the soluble receptor activator of nuclear factor-κB ligand (sRANKL)-stimulated osteoclast differentiation, the neddylation and expression of UBA3, the NEDD8-activating enzyme (NAE) catalytic subunit, were dose- and time-dependently upregulated in RAW 264.7 macrophages. UBA3 knockdown for diminishing NAE activity or administering low doses of the NAE inhibitor MLN4924 significantly suppressed sRANKL-stimulated osteoclast differentiation and bone-resorbing activity in the macrophages by inhibiting sRANKL-stimulated neddylation and tumor necrosis factor receptor-associated factor 6 (TRAF6)-activated transforming growth factor-β-activated kinase 1 (TAK1) downstream signaling for diminishing nuclear factor-activated T cells c1 (NFATc1) expression. sRANKL enhanced the interaction of TRAF6 with the neddylated proteins and the polyubiquitination of TRAF6's lysine 63, which activated TAK1 downstream signaling; however, this process was inhibited by MLN4924. MLN4924 significantly reduced osteoporosis in an ovariectomy- and sRANKL-induced osteoporosis mouse model in vivo. Our novel finding was that NAE-mediated neddylation participates in RANKL-activated TRAF6-TAK1-NFATc1 signaling during osteoclast differentiation and osteoporosis, suggesting that neddylation may be a new target for treating osteoporosis.
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Affiliation(s)
- Meng-Huang Wu
- Department of Orthopaedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Department of Orthopedics, Taipei Medical University Hospital, Taipei 11031, Taiwan
- TMU Biodesign Center, Taipei Medical University, Taipei 11031, Taiwan
| | - Wei-Bin Hsu
- Sports Medicine Center, Chang Gung Memorial Hospital, Puzi 61301, Taiwan
| | - Mei-Hsin Chen
- Sports Medicine Center, Chang Gung Memorial Hospital, Puzi 61301, Taiwan
| | - Chung-Sheng Shi
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33332, Taiwan
- Colon and Rectal Surgery, Department of Surgery, Chiayi Chang Gung Memorial Hospital, Puzi 61301, Taiwan
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Xu K, Chu Y, Liu Q, Fan W, He H, Huang F. NEDD4 E3 Ligases: Functions and Mechanisms in Bone and Tooth. Int J Mol Sci 2022; 23:ijms23179937. [PMID: 36077334 PMCID: PMC9455957 DOI: 10.3390/ijms23179937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/29/2022] Open
Abstract
Protein ubiquitination is a precisely controlled enzymatic cascade reaction belonging to the post-translational modification of proteins. In this process, E3 ligases catalyze the binding of ubiquitin (Ub) to protein substrates and define specificity. The neuronally expressed developmentally down-regulated 4 (NEDD4) subfamily, belonging to the homology to E6APC terminus (HECT) class of E3 ligases, has recently emerged as an essential determinant of multiple cellular processes in different tissues, including bone and tooth. Here, we place special emphasis on the regulatory role of the NEDD4 subfamily in the molecular and cell biology of osteogenesis. We elucidate in detail the specific roles, downstream substrates, and upstream regulatory mechanisms of the NEDD4 subfamily. Further, we provide an overview of the involvement of E3 ligases and deubiquitinases in the development, repair, and regeneration of another mineralized tissue—tooth.
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Affiliation(s)
- Ke Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Yanhao Chu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Qin Liu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Wenguo Fan
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
| | - Hongwen He
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
- Correspondence: (H.H.); (F.H.)
| | - Fang Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510008, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510008, China
- Correspondence: (H.H.); (F.H.)
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10
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Wu Z, Bai J, Ge G, Wang T, Feng S, Ma Q, Liang X, Li W, Zhang W, Xu Y, Guo K, Cui W, Zha G, Geng D. Regulating Macrophage Polarization in High Glucose Microenvironment Using Lithium-Modified Bioglass-Hydrogel for Diabetic Bone Regeneration. Adv Healthc Mater 2022; 11:e2200298. [PMID: 35388979 DOI: 10.1002/adhm.202200298] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/02/2022] [Indexed: 01/05/2023]
Abstract
Diabetes mellitus is a chronic metabolic disease with a proinflammatory microenvironment, causing poor vascularization and bone regeneration. Due to the lack of effective therapy and one-sided focus on the direct angiogenic properties of biomaterials and osteogenesis stimulation, the treatment of diabetic bone defect remains challenging and complex. In this study, using gelatin methacryloyl (GelMA) as a template, a lithium (Li) -modified bioglass-hydrogel for diabetic bone regeneration is developed. It exhibits a sustained ion release for better bone regeneration under diabetic microenvironment. The hydrogel is shown to be mechanically adaptable to the complex shape of the defect. In vitro, Li-modified bioglass-hydrogel promoted cell proliferation, direct osteogenesis, and regulated macrophages in high glucose (HG) microenvironment, with the secretion of bone morphogenetic protein-2 and vascular endothelial growth factor to stimulate osteogenesis and neovascularization indirectly. In vivo, composite hydrogels containing GelMA and Li-MBG (GM/M-Li) release Li ions to relieve inflammation, providing an anti-inflammatory microenvironment for osteogenesis and angiogenesis. Applying Li-modified bioglass-hydrogel, significantly enhances bone regeneration in a diabetic rat bone defect. Together, both remarkable in vitro and in vivo outcomes in this study present an opportunity for diabetic bone regeneration on the basis of HG microenvironment.
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Affiliation(s)
- Zerui Wu
- Department of Orthopaedics The Affiliated Hospital of Xuzhou Medical University Xuzhou Jiangsu Province 221006 China
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
| | - Jiaxiang Bai
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
| | - Gaoran Ge
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
| | - Tao Wang
- Department of Orthopaedics Shanghai General Hospital Shanghai Jiao Tong University School of Medicine 85 Wujin Road Shanghai 200080 P. R. China
- 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 Shanghai 200025 P. R. China
| | - Shuo Feng
- Department of Orthopaedics The Affiliated Hospital of Xuzhou Medical University Xuzhou Jiangsu Province 221006 China
| | - Qiaoqiao Ma
- Department of Orthopaedics The Affiliated Hospital of Xuzhou Medical University Xuzhou Jiangsu Province 221006 China
| | - Xiaolong Liang
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
| | - Wenming Li
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
| | - Wei Zhang
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
| | - Yaozeng Xu
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
| | - Kaijin Guo
- Department of Orthopaedics The Affiliated Hospital of Xuzhou Medical University Xuzhou Jiangsu Province 221006 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 Shanghai 200025 P. R. China
| | - Guochun Zha
- Department of Orthopaedics The Affiliated Hospital of Xuzhou Medical University Xuzhou Jiangsu Province 221006 China
| | - Dechun Geng
- Department of Orthopaedics The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province 215006 China
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11
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Zhang H, Li X, Liu J, Lin X, Pei L, Boyce BF, Xing L. Proteasome inhibition-enhanced fracture repair is associated with increased mesenchymal progenitor cells in mice. PLoS One 2022; 17:e0263839. [PMID: 35213543 PMCID: PMC8880819 DOI: 10.1371/journal.pone.0263839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 01/27/2022] [Indexed: 11/19/2022] Open
Abstract
The ubiquitin/proteasome system controls the stability of Runx2 and JunB, proteins essential for differentiation of mesenchymal progenitor/stem cells (MPCs) to osteoblasts. Local administration of proteasome inhibitor enhances bone fracture healing by accelerating endochondral ossification. However, if a short-term administration of proteasome inhibitor enhances fracture repair and potential mechanisms involved have yet to be exploited. We hypothesize that injury activates the ubiquitin/proteasome system in callus, leading to elevated protein ubiquitination and degradation, decreased MPCs, and impaired fracture healing, which can be prevented by a short-term of proteasome inhibition. We used a tibial fracture model in Nestin-GFP reporter mice, in which a subgroup of MPCs are labeled by Nestin-GFP, to test our hypothesis. We found increased expression of ubiquitin E3 ligases and ubiquitinated proteins in callus tissues at the early phase of fracture repair. Proteasome inhibitor Bortezomib, given soon after fracture, enhanced fracture repair, which is accompanied by increased callus Nestin-GFP+ cells and their proliferation, and the expression of osteoblast-associated genes and Runx2 and JunB proteins. Thus, early treatment of fractures with Bortezomib could enhance the fracture repair by increasing the number and proliferation of MPCs.
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Affiliation(s)
- Hengwei Zhang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Xing Li
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Jiatong Liu
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Xi Lin
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Lingpeng Pei
- Key Laboratory of Ethnomedicine, Minzu University of China, Beijing, China
| | - Brendan F. Boyce
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Lianping Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, United States of America
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12
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Kitaura H, Marahleh A, Ohori F, Noguchi T, Nara Y, Pramusita A, Kinjo R, Ma J, Kanou K, Mizoguchi I. Role of the Interaction of Tumor Necrosis Factor-α and Tumor Necrosis Factor Receptors 1 and 2 in Bone-Related Cells. Int J Mol Sci 2022; 23:ijms23031481. [PMID: 35163403 PMCID: PMC8835906 DOI: 10.3390/ijms23031481] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 02/04/2023] Open
Abstract
Tumor necrosis factor-α (TNF-α) is a pleiotropic cytokine expressed by macrophages, monocytes, and T cells, and its expression is triggered by the immune system in response to pathogens and their products, such as endotoxins. TNF-α plays an important role in host defense by inducing inflammatory reactions such as phagocytes and cytocidal systems activation. TNF-α also plays an important role in bone metabolism and is associated with inflammatory bone diseases. TNF-α binds to two cell surface receptors, the 55kDa TNF receptor-1 (TNFR1) and the 75kDa TNF receptor-2 (TNFR2). Bone is in a constant state of turnover; it is continuously degraded and built via the process of bone remodeling, which results from the regulated balance between bone-resorbing osteoclasts, bone-forming osteoblasts, and the mechanosensory cell type osteocytes. Precise interactions between these cells maintain skeletal homeostasis. Studies have shown that TNF-α affects bone-related cells via TNFRs. Signaling through either receptor results in different outcomes in different cell types as well as in the same cell type. This review summarizes and discusses current research on the TNF-α and TNFR interaction and its role in bone-related cells.
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13
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Genome-Wide CRISPR/Cas9-Based Screening for Deubiquitinase Subfamily Identifies Ubiquitin-Specific Protease 11 as a Novel Regulator of Osteogenic Differentiation. Int J Mol Sci 2022; 23:ijms23020856. [PMID: 35055037 PMCID: PMC8778097 DOI: 10.3390/ijms23020856] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 02/07/2023] Open
Abstract
The osteoblast differentiation capacity of mesenchymal stem cells must be tightly regulated, as inadequate bone mineralization can lead to osteoporosis, and excess bone formation can cause the heterotopic ossification of soft tissues. The balanced protein level of Msh homeobox 1 (MSX1) is critical during normal osteogenesis. To understand the factors that prevent MSX1 protein degradation, the identification of deubiquitinating enzymes (DUBs) for MSX1 is essential. In this study, we performed loss-of-function-based screening for DUBs regulating MSX1 protein levels using the CRISPR/Cas9 system. We identified ubiquitin-specific protease 11 (USP11) as a protein regulator of MSX1 and further demonstrated that USP11 interacts and prevents MSX1 protein degradation by its deubiquitinating activity. Overexpression of USP11 enhanced the expression of several osteogenic transcriptional factors in human mesenchymal stem cells (hMSCs). Additionally, differentiation studies revealed reduced calcification and alkaline phosphatase activity in USP11-depleted cells, while overexpression of USP11 enhanced the differentiation potential of hMSCs. These results indicate the novel role of USP11 during osteogenic differentiation and suggest USP11 as a potential target for bone regeneration.
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14
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Mathieu NA, Levin RH, Spratt DE. Exploring the Roles of HERC2 and the NEDD4L HECT E3 Ubiquitin Ligase Subfamily in p53 Signaling and the DNA Damage Response. Front Oncol 2021; 11:659049. [PMID: 33869064 PMCID: PMC8044464 DOI: 10.3389/fonc.2021.659049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/16/2021] [Indexed: 12/27/2022] Open
Abstract
Cellular homeostasis is governed by the precise expression of genes that control the translation, localization, and termination of proteins. Oftentimes, environmental and biological factors can introduce mutations into the genetic framework of cells during their growth and division, and these genetic abnormalities can result in malignant transformations caused by protein malfunction. For example, p53 is a prominent tumor suppressor protein that is capable of undergoing more than 300 posttranslational modifications (PTMs) and is involved with controlling apoptotic signaling, transcription, and the DNA damage response (DDR). In this review, we focus on the molecular mechanisms and interactions that occur between p53, the HECT E3 ubiquitin ligases WWP1, SMURF1, HECW1 and HERC2, and other oncogenic proteins in the cell to explore how irregular HECT-p53 interactions can induce tumorigenesis.
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Affiliation(s)
- Nicholas A Mathieu
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, Worcester, MA, United States
| | - Rafael H Levin
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, Worcester, MA, United States
| | - Donald E Spratt
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, Worcester, MA, United States
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15
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Xia Q, Li Y, Han D, Dong L. SMURF1, a promoter of tumor cell progression? Cancer Gene Ther 2020; 28:551-565. [PMID: 33204002 DOI: 10.1038/s41417-020-00255-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 10/14/2020] [Accepted: 10/29/2020] [Indexed: 12/20/2022]
Abstract
Overexpression of HECT-type E3 ubiquitin ligase SMURF1 is correlated with poor prognosis in patients with various cancers, such as glioblastoma, colon cancer, and clear cell renal cell carcinoma. SMURF1 acts as a tumor promoter by ubiquitination modification and/or degradation of tumor-suppressing proteins. Combined treatment of Smurf1 knockdown with rapamycin showed collaborative antitumor effects in mice. This review described the role of HECT, WW, and C2 domains in regulating SMURF1 substrate selection. We summarized up to date SMURF1 substrates regulating different type cell signaling, thus, accelerating tumor progression, invasion, and metastasis. Furthermore, the downregulation of SMURF1 expression, inhibition of its E3 activity and regulation of its specificity to substrates prevent tumor progression. The potential application of SMURF1 regulators, specifically, wisely choose certain drugs by blocking SMURF1 selectivity in tumor suppressors, to develop novel anticancer treatments.
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Affiliation(s)
- Qin Xia
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yang Li
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Da Han
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Lei Dong
- School of Life Science, Beijing Institute of Technology, Beijing, China.
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16
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Lackington WA, Gomez-Sierra MA, González-Vázquez A, O'Brien FJ, Stoddart MJ, Thompson K. Non-viral Gene Delivery of Interleukin-1 Receptor Antagonist Using Collagen-Hydroxyapatite Scaffold Protects Rat BM-MSCs From IL-1β-Mediated Inhibition of Osteogenesis. Front Bioeng Biotechnol 2020; 8:582012. [PMID: 33123517 PMCID: PMC7573213 DOI: 10.3389/fbioe.2020.582012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/16/2020] [Indexed: 11/13/2022] Open
Abstract
Although most bone fractures typically heal without complications, a small proportion of patients (≤10%) experience delayed healing or potential progression to non-union. Interleukin-1 (IL-1β) plays a crucial role in fracture healing as an early driver of inflammation. However, the effects of IL-1β can impede the healing process if they persist long after the establishment of a fracture hematoma, making it a promising target for novel therapies. Accordingly, the overall objective of this study was to develop a novel gene-based therapy that mitigates the negative effects of IL-1β-driven inflammation while providing a structural template for new bone formation. A collagen-hydroxyapatite scaffold (CHA) was used as a platform for the delivery of nanoparticles composed of pDNA, encoding for IL-1 receptor antagonist (IL-1Ra), complexed to the robust non-viral gene delivery vector, polyethyleneimine (PEI). Utilizing pDNA encoding for Gaussia luciferase and GFP as reporter genes, we found that PEI-pDNA nanoparticles induced a transient gene expression profile in rat bone marrow-derived mesenchymal stromal cells (BM-MSCs), with a transfection efficiency of 14.8 ± 1.8% in 2D. BM-MSC viability was significantly affected by PEI-pDNA nanoparticles as evaluated using CellTiter Blue; however, after 10 days in culture this effect was negligible. Transfection with PEI-pIL-1Ra nanoparticles led to functional IL-1Ra production, capable of antagonizing IL-1β-induced expression of secreted embryonic alkaline phosphatase from HEK-Blue-IL-1β reporter cells. Sustained treatment with IL-1β (0.1, 1, and 10 ng/ml) had a dose-dependent negative effect on BM-MSC osteogenesis, both in terms of gene expression (Alpl and Ibsp) and calcium deposition. BM-MSCs transfected with PEI-IL-1Ra nanoparticles were found to be capable of overcoming the inhibitory effects of sustained IL-1β (1 ng/ml) treatments on in vitro osteogenesis. Ultimately, IL-1Ra gene-activated CHA scaffolds supported mineralization of BM-MSCs under chronic inflammatory conditions in vitro, demonstrating potential for future therapeutic applications in vivo.
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Affiliation(s)
| | | | - Arlyng González-Vázquez
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland.,AMBER Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland.,AMBER Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Keith Thompson
- AO Research Institute Davos, AO Foundation, Davos, Switzerland
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17
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Xiong A, He Y, Gao L, Li G, Weng J, Kang B, Wang D, Zeng H. Smurf1-targeting miR-19b-3p-modified BMSCs combined PLLA composite scaffold to enhance osteogenic activity and treat critical-sized bone defects. Biomater Sci 2020; 8:6069-6081. [PMID: 33000773 DOI: 10.1039/d0bm01251c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Over the past few years, tissue-engineering technology provided a new direction for bone defects therapy, which involved developing applicable biological materials composite with seed cells to repair bone defects tissue. However, as one of the commonest seed cells for tissue engineering, BMSCs (bone marrow mesenchymal stem cells), are still lacking an efficient and accurate differentiation ability into functional osteoblast. Given these facts, the development of a novel tissue engineering technology integrated BMSCs and scaffold materials have become an urgent need for bone defects repair. In this work, we found that miR-19b-3p could suppress the expression of Smurf1 which is a negative regulator of osteogenesis. By employing lentivirus pLVTHM-miR-19b-3p transfected BMSCs, we verified that miR-19b-3p could promote BMSCs osteogenic differentiation via suppressing Smurf1 expression. Furthermore, we designed a new porous PLLA/POSS scaffold combined with BMSCs for tissue engineering. In vitro experiment showed that miR-19b-3p modified BMSCs facilitated the expansion and proliferation of BMSCs when culturing with the PLLA/POSS scaffold. We established rats calvarial critical-sized defect model, after transplanting the BMSCs/PLLA/POSS for 3 month, the pathology, immunohistochemical and Micro-CT results showed that miR-19b-BMSCs/PLLA/POSS significantly facilitated the osteogenesis differentiation, enhanced the bone density of defect area and accelerated the repair of bone defect. We elucidated the mechanism that miR-19b-3p suppressed the expression of Smurf1 and provided a novel tissue engineering strategy for using microRNA gene-modified BMSCs combined with PLLA/POSS scaffold in bone tissue engineering.
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Affiliation(s)
- Ao Xiong
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, PR China.
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18
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Abstract
PURPOSE OF REVIEW The clinical significance, target pathways, recent successes, and challenges that preclude translation of RNAi bone regenerative approaches are overviewed. RECENT FINDINGS RNA interference (RNAi) is a promising new therapeutic approach for bone regeneration by stimulating or inhibiting critical signaling pathways. However, RNAi suffers from significant delivery challenges. These challenges include avoiding nuclease degradation, achieving bone tissue targeting, and reaching the cytoplasm for mRNA inhibition. Many drug delivery systems have overcome stability and intracellular localization challenges but suffer from protein adsorption that results in clearance of up to 99% of injected dosages, thus severely limiting drug delivery efficacy. While RNAi has myriad promising attributes for use in bone regenerative applications, delivery challenges continue to plague translation. Thus, a focus on drug delivery system development is critical to provide greater delivery efficiency and bone targeting to reap the promise of RNAi.
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Affiliation(s)
- Dominic W Malcolm
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Yuchen Wang
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Clyde Overby
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Maureen Newman
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, 308 Robert B. Goergen Hall, Rochester, NY, 14627, USA.
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.
- Materials Science Program, University of Rochester, Rochester, NY, USA.
- Department of Chemical Engineering, University of Rochester, Rochester, NY, USA.
- Department of Biomedical Genetics and Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA.
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19
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Gomathi K, Akshaya N, Srinaath N, Moorthi A, Selvamurugan N. Regulation of Runx2 by post-translational modifications in osteoblast differentiation. Life Sci 2020; 245:117389. [PMID: 32007573 DOI: 10.1016/j.lfs.2020.117389] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 01/27/2023]
Abstract
Osteogenesis is the process of new bone formation where transcription factors play an important role in controlling cell proliferation and differentiation. Runt-related transcription factor 2 (Runx2), a key transcription factor, regulates the differentiation of mesenchymal stem cells into osteoblasts, which further mature into osteocytes. Runx2 acts as a modulator such that it can either stimulate or inhibit the osteoblast differentiation. A defect/alteration in the expression/activity of this gene may lead to skeletal dysplasia. Runx2 thus serves as the best therapeutic model gene for studying bone and bone-related diseases. In this review, we briefly outline the regulation of Runx2 and its activity at the post-translational levels by the virtue of phosphorylation, acetylation, and ubiquitination in controlling the bone homeostasis.
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Affiliation(s)
- K Gomathi
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - N Akshaya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - N Srinaath
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - A Moorthi
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India.
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20
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He P, Mo XB, Lei SF, Deng FY. Epigenetically regulated co-expression network of genes significant for rheumatoid arthritis. Epigenomics 2019; 11:1601-1612. [PMID: 31693422 DOI: 10.2217/epi-2019-0028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To identify epigenetically regulated network of genes in peripheral blood mononuclear cells significant for rheumatoid arthritis (RA). Methods: Differentially expressed genes (DEGs) and their associated differentially expressed miRNAs and differentially methylated positions (DMPs) were identified. Causal inference test (CIT) identified the causal regulation chains. The analyses, for example, weighted gene co-expression network (WGCNA), protein-protein interaction and functional enrichment, evaluated interaction patterns among the DEGs and the associated epigenetic factors. Results: A total of 181 DEGs were identified. The DEGs were significantly regulated by DMPs and/or differentially expressed miRNAs. Causal inference test analyses identified 18 causal chains of DMP-DEG-RA and 16 intermediate DEGs enriched in 'protein kinase inhibitor activity'. BTN2A1 was co-expressed with other 9 intermediate genes and 11 known RA-associated genes and played a pivotal role in the co-expression network. Conclusion: Epigenetically regulated network of genes in peripheral blood mononuclear cells (PBMC) contributed to RA. The causal DMPs and key intermediate genes may serve as potential biomarkers for RA.
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Affiliation(s)
- Pei He
- Center for Genetic Epidemiology & Genomics, Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Xing-Bo Mo
- Center for Genetic Epidemiology & Genomics, Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Shu-Feng Lei
- Center for Genetic Epidemiology & Genomics, Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Fei-Yan Deng
- Center for Genetic Epidemiology & Genomics, Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China.,Jiangsu Key Laboratory of Preventive & Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, Jiangsu 215123, PR China
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21
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Baloghova N, Lidak T, Cermak L. Ubiquitin Ligases Involved in the Regulation of Wnt, TGF-β, and Notch Signaling Pathways and Their Roles in Mouse Development and Homeostasis. Genes (Basel) 2019; 10:genes10100815. [PMID: 31623112 PMCID: PMC6826584 DOI: 10.3390/genes10100815] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 10/02/2019] [Accepted: 10/13/2019] [Indexed: 12/20/2022] Open
Abstract
The Wnt, TGF-β, and Notch signaling pathways are essential for the regulation of cellular polarity, differentiation, proliferation, and migration. Differential activation and mutual crosstalk of these pathways during animal development are crucial instructive forces in the initiation of the body axis and the development of organs and tissues. Due to the ability to initiate cell proliferation, these pathways are vulnerable to somatic mutations selectively producing cells, which ultimately slip through cellular and organismal checkpoints and develop into cancer. The architecture of the Wnt, TGF-β, and Notch signaling pathways is simple. The transmembrane receptor, activated by the extracellular stimulus, induces nuclear translocation of the transcription factor, which subsequently changes the expression of target genes. Nevertheless, these pathways are regulated by a myriad of factors involved in various feedback mechanisms or crosstalk. The most prominent group of regulators is the ubiquitin-proteasome system (UPS). To open the door to UPS-based therapeutic manipulations, a thorough understanding of these regulations at a molecular level and rigorous confirmation in vivo are required. In this quest, mouse models are exceptional and, thanks to the progress in genetic engineering, also an accessible tool. Here, we reviewed the current understanding of how the UPS regulates the Wnt, TGF-β, and Notch pathways and we summarized the knowledge gained from related mouse models.
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Affiliation(s)
- Nikol Baloghova
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
| | - Tomas Lidak
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
| | - Lukas Cermak
- Laboratory of Cancer Biology, Division BIOCEV, Institute of Molecular Genetics of the Czech Academy of Sciences, 252 42 Vestec, Czech Republic.
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22
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Chen TH, Weber FE, Malina-Altzinger J, Ghayor C. Epigenetic drugs as new therapy for tumor necrosis factor-α-compromised bone healing. Bone 2019; 127:49-58. [PMID: 31152802 DOI: 10.1016/j.bone.2019.05.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/20/2019] [Accepted: 05/27/2019] [Indexed: 02/07/2023]
Abstract
Impaired bone regeneration by excess inflammation leads to failure of bone healing. Current therapies display limited benefits making new treatments imperative. Our recent discoveries of the anti-inflammatory characteristics of bromodomain and extra terminal domain (BET) inhibitors, N-methylpyrrolidone (NMP) and N,N-Dimethylacetamide (DMA), implicate possible therapeutic use of epigenetic drugs in inflammation-impaired bone healing. Here, we investigated the effects of NMP and DMA on osteogenesis in vitro and ex vivo under the influence of TNFα, a key cytokine responsible for impaired fracture healing. NMP and DMA pre-treatment recovered TNFα-inhibited expression of essential osteoblastic genes, Alp, Runx2, and Osterix as well as mineralization in multipotent stem cells, but not in pre-osteoblasts and calvarial osteoblasts. The mechanism of action involves the recovery of TNFα-suppressed BMP-induced Smad signaling and the reduction of TNFα-triggered ERK pathway. In addition, ERK inhibitor treatment diminished the effect of TNFα on osteogenesis, which reinforces the role of ERK pathway in the adverse effect of TNFα. Furthermore, endochondral ossification was analyzed in an ex vivo bone culture model. TNFα largely abrogated BMP-promoted growth of mineralized bone while pre-treatment of NMP and DMA prevented the deleterious effect of TNFα. Taken together, these data shed light on developing low- affinity epigenetic drugs as new therapies for inflammation-compromised bone healing.
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Affiliation(s)
- Tse-Hsiang Chen
- University of Zurich, Center of Dental Medicine, Oral Biotechnology & Bioengineering, Plattenstrasse11, 8032 Zürich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland
| | - Franz E Weber
- University of Zurich, Center of Dental Medicine, Oral Biotechnology & Bioengineering, Plattenstrasse11, 8032 Zürich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Switzerland; CABMM, Center for Applied Biotechnology and Molecular Medicine, University of Zurich, Zürich, Switzerland
| | - Johann Malina-Altzinger
- Limmat Cleft and Craniofacial Centre, Zürich MKG, Hardturmstrasse 133, 8005 Zürich, Switzerland
| | - Chafik Ghayor
- University of Zurich, Center of Dental Medicine, Oral Biotechnology & Bioengineering, Plattenstrasse11, 8032 Zürich, Switzerland.
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23
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Indrawati DW, Munadziroh E, Sulisetyawati TIB, El Fadhlallah PM. Sponge amnion potential in post tooth extraction wound healing by interleukin-6 and bone morphogenetic protein-2 expression analysis: An animal study. Dent Res J (Isfahan) 2019; 16:283-288. [PMID: 31543933 PMCID: PMC6749851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Wound tooth extraction is a mechanical injury that traumatizes adjacent tissue. Sponge amnion contains growth factors that can promote postextraction wound healing. Amnion membranes can be transformed into sponge form rendering it easier to use. The aim of this study is to analyze interleukin-6 (IL-6) and bone morphogenetic protein-2 (BMP-2) expression in postextraction wound healing on the 1st and 7th day after sponge amnion application. MATERIALS AND METHODS Twenty-eight Wistar rats were used in this experimental descriptive analytical study. Fourteen animals' first right anterior mandible tooth was extracted; then, the socket applied by sponge amnion and sutured (treatment group), while 14 others only sutured (as control group). The alveolar bone tissue of animal was observed 1st and 7th days after extraction and then was analyzed using immunohistostaining to identify the expression of IL-6 and BMP-2. Statistical analysis was performed using one-way ANOVA with the level of significance (P < 0.05). RESULTS IL-6 expression in the treatment group was significantly lower than the control group on the 1st and 7th days (P = 0.000). BMP-2 expression in the treatment group was significantly higher than the control group on the 1st and 7th days (P = 0.000). CONCLUSION Sponge amnion can promote the healing process by increasing the expression of BMP-2 and decreasing IL-6 expression.
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Affiliation(s)
- Dwi Wahyu Indrawati
- Department of Dental Health Science, Faculty of Dental Medicine, Airlangga University, Surabaya, Indonesia
| | - Elly Munadziroh
- Department of Biomaterial, Faculty of Dental Medicine, Airlangga University, Surabaya, Indonesia,Address for correspondence: Dr. Elly Munadziroh, Faculty of Dental Medicine, Universitas Airlangga, Jl.Prof. Dr. Moestopo 47, Surabaya 60132, Indonesia. E-mail:
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24
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Cheng A, Krishnan L, Pradhan P, Weinstock LD, Wood LB, Roy K, Guldberg RE. Impaired bone healing following treatment of established nonunion correlates with serum cytokine expression. J Orthop Res 2019; 37:299-307. [PMID: 30480339 PMCID: PMC7605215 DOI: 10.1002/jor.24186] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 11/06/2018] [Indexed: 02/04/2023]
Abstract
Delayed union and nonunion are a significant concern in long bone fractures and spinal fusions. Treatment of nonunion often entails multiple revision surgeries that further increase the financial, physical, and emotional burden on patients. The optimal treatment strategy for nonunions remains unclear in many cases, and the risk of complications after revision procedures remains high. This is in part due to our limited understanding of the biological mechanisms that inhibit proper bone healing and lead to nonunion. And yet, few preclinical models directly investigate how healing is impacted after establishment of nonunion, with most instead primarily focusing on treatment immediately after a fresh bone injury. Here, we utilized a critical size femoral defect model in rats where treatment was delayed 8 weeks post-injury, at which time nonunion was established. In this study, acute and delayed treatments with bone morphogenetic protein-2 (BMP-2) were assessed. We found that delayed treatment resulted in decreased bone formation and reduced mechanical strength compared to acute treatment, even when BMP-2 dose was increased by 2.5 times the acute treatment dose. Interestingly, serum cytokine analysis at 12 weeks post-treatment revealed signs of chronic immune dysregulation after delayed treatment. In particular, non-responders (rats that did not exhibit defect bridging) demonstrated higher overall expression of inflammatory cytokines, including TNFα and IL-1β, compared to responders. These findings suggest that re-establishing long-term immune homeostasis may be critical for successful bone healing, particularly after nonunion. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:299-307, 2019.
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Affiliation(s)
- Albert Cheng
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia
| | - Laxminarayanan Krishnan
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia
| | - Pallab Pradhan
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
| | - Laura D. Weinstock
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
| | - Levi B. Wood
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
| | - Krishnendu Roy
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
| | - Robert E. Guldberg
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia,Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon
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25
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Ahmad N, Kushwaha P, Karvande A, Tripathi AK, Kothari P, Adhikary S, Khedgikar V, Mishra VK, Trivedi R. MicroRNA-672-5p Identified during Weaning Reverses Osteopenia and Sarcopenia in Ovariectomized Mice. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 14:536-549. [PMID: 30769134 PMCID: PMC6374523 DOI: 10.1016/j.omtn.2019.01.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/18/2018] [Accepted: 01/03/2019] [Indexed: 12/30/2022]
Abstract
Post-menopausal condition augments the biological aging process, characterized by multiple metabolic disorders in which bone loss is the most prevalent outcome and usually coupled with sarcopenia. Coexistence of such associated pathogenesis have much worse health outcomes, compared to individuals with osteoporosis only. Pre- and post-natal bone development demands calcium from mother to fetus during pregnancy and lactation leading to a significant maternal skeletal loss. It follows an anabolic phase around weaning during which there is a notable recovery of the maternal skeleton. Here, we have studied the therapeutic effect of microRNA-672-5p identified during weaning when it is predominantly expressed, in ovariectomized mice for both osteopenia and sarcopenia. miR-672-5p induced osteoblast differentiation and mineralization. These actions were mediated through inhibition of Smurf1 with enhanced Runx2 transcriptional activation. In vivo, miR-672-5p significantly increased osteoblastogenesis and mineralization, thus reversing bone loss caused by ovariectomy. It also improved bone-mineral density, load-bearing capacity, and bone quality. Sarcopenia was also alleviated by miR-672-5p, as we observed increased cross-sectional area and Feret’s diameter of muscle fibers. We hypothesize that elevated miR-672-5p expression has therapeutic efficacy in estrogen-deficiency-induced osteopenia along with sarcopenia.
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Affiliation(s)
- Naseer Ahmad
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Priyanka Kushwaha
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Anirudha Karvande
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Ashish Kumar Tripathi
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Priyanka Kothari
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Sulekha Adhikary
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Vikram Khedgikar
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Vijay Kumar Mishra
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India
| | - Ritu Trivedi
- Division of Endocrinology, CSIR-CDRI (Council of Scientific and Industrial Research-Central Drug Research Institute), Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, Uttar Pradesh, India.
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26
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Munadziroh E, Indrawati D, Sulisetyawati TB, El Fadhlallah P. Sponge amnion potential in post tooth extraction wound healing by interleukin-6 and bone morphogenetic protein-2 expression analysis: An animal study. Dent Res J (Isfahan) 2019. [DOI: 10.4103/1735-3327.266089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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27
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Liu J, Chen Y, Huang Q, Liu W, Ji X, Hu F, Zhu Y, Zhang L, Dong G. IRAK2 counterbalances oncogenic Smurf1 in colon cancer cells by dictating ER stress. Cell Signal 2018; 48:69-80. [DOI: 10.1016/j.cellsig.2018.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 01/13/2023]
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28
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Lata M, Hettinghouse AS, Liu CJ. Targeting tumor necrosis factor receptors in ankylosing spondylitis. Ann N Y Acad Sci 2018; 1442:5-16. [PMID: 30008173 DOI: 10.1111/nyas.13933] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/19/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023]
Abstract
Over the past two decades, considerable advances in our understanding of inflammatory and immune pathways have allowed for the growing use of targeted biologic therapy. Most notably, the introduction of tumor necrosis factor (TNF) inhibitors has dramatically changed the management of autoimmune inflammatory disorders, including ankylosing spondylitis (AS). Despite the efficacy of TNF inhibitors documented in multiple clinical trials, anti-TNF therapy in AS is far from foolproof; it is associated with serious adverse effects and limited response to therapy in some patients. Moreover, specific questions regarding the role of TNF as a mediator of AS remain unanswered. Therefore, additional efforts are needed in order to better understand the role of TNF in the pathogenesis of AS and to develop safer and more effective treatment strategies. The purpose of this review is to better the understanding of the physiologic and pathogenic roles of TNF signaling in the course of AS. Relevant TNF biology and novel approaches to TNF blockade in AS are discussed.
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Affiliation(s)
- Michal Lata
- Department of Orthopedic Surgery, New York University Medical Center, Hospital for Joint Diseases, New York, New York
| | - Aubryanna S Hettinghouse
- Department of Orthopedic Surgery, New York University Medical Center, Hospital for Joint Diseases, New York, New York
| | - Chuan-Ju Liu
- Department of Orthopedic Surgery, New York University Medical Center, Hospital for Joint Diseases, New York, New York.,Department of Cell Biology, New York University School of Medicine, New York, New York
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29
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Deubiquitinating Enzymes and Bone Remodeling. Stem Cells Int 2018; 2018:3712083. [PMID: 30123285 PMCID: PMC6079350 DOI: 10.1155/2018/3712083] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 05/29/2018] [Indexed: 02/05/2023] Open
Abstract
Bone remodeling, which is essential for bone homeostasis, is controlled by multiple factors and mechanisms. In the past few years, studies have emphasized the role of the ubiquitin-dependent proteolysis system in regulating bone remodeling. Deubiquitinases, which are grouped into five families, remove ubiquitin from target proteins and are involved in several cell functions. Importantly, a number of deubiquitinases mediate bone remodeling through regulating differentiation and/or function of osteoblast and osteoclasts. In this review, we review the functions and mechanisms of deubiquitinases in mediating bone remodeling.
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30
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Li J, Zuo B, Zhang L, Dai L, Zhang X. Osteoblast versus Adipocyte: Bone Marrow Microenvironment-Guided Epigenetic Control. CASE REPORTS IN ORTHOPEDIC RESEARCH 2018. [DOI: 10.1159/000489053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The commitment and differentiation of bone marrow mesenchymal stem cells (MSCs) is tightly controlled by the local environment ensuring lineage differentiation balance and bone homeostasis. However, pathological conditions linked with osteoporosis have changed the bone marrow microenvironment, shifting MSCs’ fate to favor adipocytes over osteoblasts, and consequently leading to decreased bone mass with marrow fat accumulation. Multiple questions related to the underlying mechanisms remain to be answered. As recent findings have confirmed the fundamental role of the epigenetic mechanism in connecting environmental signals with gene expression and stem cell differentiation, a regulatory network in the bone marrow microenvironment, epigenetic modulation, gene expression, and MSC differentiation begins to emerge. This review discusses how pathological environmental factors affect MSCs’ fate by epigenetic modulating lineage-specific genes. We conclude that manipulating local environments and/or the epigenetic regulatory machinery that target the adipocyte differentiation pathway might be a therapeutic implication of bone loss diseases such as osteoporosis.
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31
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Graef JL, Rendina-Ruedy E, Crockett EK, Ouyang P, King JB, Cichewicz RH, Lucas EA, Smith BJ. Select polyphenolic fractions from dried plum enhance osteoblast activity through BMP-2 signaling. J Nutr Biochem 2018; 55:59-67. [PMID: 29413490 PMCID: PMC5876065 DOI: 10.1016/j.jnutbio.2017.09.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 03/25/2017] [Accepted: 09/06/2017] [Indexed: 10/18/2022]
Abstract
Dried plum supplementation has been shown to enhance bone formation while suppressing bone resorption. Evidence from previous studies has demonstrated that these responses can be attributed in part to the fruit's polyphenolic compounds. The purpose of this study was to identify the most bioactive polyphenolic fractions of dried plum with a focus on their osteogenic activity and to investigate their mechanisms of action under normal and inflammatory conditions. Utilizing chromatographic techniques, six fractions of polyphenolic compounds were prepared from a crude extract of dried plum. Initial screening assays revealed that two fractions (DP-FrA and DP-FrB) had the greatest osteogenic potential. Subsequent experiments using primary bone-marrow-derived osteoblast cultures demonstrated these two fractions enhanced extracellular alkaline phosphatase (ALP), an indicator of osteoblast activity, and mineralized nodule formation under normal conditions. Both fractions enhanced bone morphogenetic protein (BMP) signaling, as indicated by increased Bmp2 and Runx2 gene expression and protein levels of phosphorylated Smad1/5. DP-FrB was most effective at up-regulating Tak1 and Smad1, as well as protein levels of phospho-p38. Under inflammatory conditions, TNF-α suppressed ALP and tended to decrease nodule formation (P=.0674). This response coincided with suppressed gene expression of Bmp2 and the up-regulation of Smad6, an inhibitor of BMP signaling. DP-FrA and DP-FrB partially normalized these responses. Our results show that certain fractions of polyphenolic compounds in dried plum up-regulate osteoblast activity by enhancing BMP signaling, and when this pathway is inhibited by TNF-α, the osteogenic response is attenuated.
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Affiliation(s)
- Jennifer L Graef
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK
| | | | - Erica K Crockett
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK
| | - Ping Ouyang
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK
| | - Jarrod B King
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK
| | - Robert H Cichewicz
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK
| | - Edralin A Lucas
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK
| | - Brenda J Smith
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK.
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32
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Barbe MF, Massicotte VS, Assari S, Monroy MA, Frara N, Harris MY, Amin M, King T, Cruz GE, Popoff SN. Prolonged high force high repetition pulling induces osteocyte apoptosis and trabecular bone loss in distal radius, while low force high repetition pulling induces bone anabolism. Bone 2018; 110:267-283. [PMID: 29476978 PMCID: PMC5878749 DOI: 10.1016/j.bone.2018.02.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/23/2018] [Accepted: 02/16/2018] [Indexed: 01/14/2023]
Abstract
We have an operant rat model of upper extremity reaching and grasping in which we examined the impact of performing a high force high repetition (High-ForceHR) versus a low force low repetition (Low-ForceHR) task for 18weeks on the radius and ulna, compared to age-matched controls. High-ForceHR rats performed at 4 reaches/min and 50% of their maximum voluntary pulling force for 2h/day, 3days/week. Low-ForceHR rats performed at 6% maximum voluntary pulling force. High-ForceHR rats showed decreased trabecular bone volume in the distal metaphyseal radius, decreased anabolic indices in this same bone region (e.g., decreased osteoblasts and bone formation rate), and increased catabolic indices (e.g., microcracks, increased osteocyte apoptosis, secreted sclerostin, RANKL, and osteoclast numbers), compared to controls. Distal metaphyseal trabeculae in the ulna of High-ForceHR rats showed a non-significant decrease in bone volume, some catabolic indices (e.g., decreased trabecular numbers) yet also some anabolic indices (e.g., increased osteoblasts and trabecular thickness). In contrast, the mid-diaphyseal region of High-ForceHR rats' radial and ulnar bones showed few to no microarchitecture differences and no changes in apoptosis, sclerostin or RANKL levels, compared to controls. In further contrast, Low-ForceHR rats showed increased trabecular bone volume in the radius in the distal metaphysis and increased cortical bone area its mid-diaphysis. These changes were accompanied by increased anabolic indices, no microcracks or osteocyte apoptosis, and decreased RANKL in each region, compared to controls. Ulnar bones of Low-ForceHR rats also showed increased anabolic indices, although fewer than in the adjacent radius. Thus, prolonged performance of an upper extremity reaching and grasping task is loading-, region-, and bone-dependent, with high force loads at high repetition rates inducing region-specific increases in bone degradative changes that were most prominent in distal radial trabeculae, while low force task loads at high repetition rates induced adaptive bone responses.
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Affiliation(s)
- Mary F Barbe
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States.
| | - Vicky S Massicotte
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Soroush Assari
- Temple University College of Engineering, Department of Mechanical Engineering, Philadelphia, PA 19122, United States
| | - M Alexandra Monroy
- Perelman School of Medicine, University of Pennsylvania, Department of Radiation Oncology, Philadelphia, PA 19104, United States
| | - Nagat Frara
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Michele Y Harris
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Mamta Amin
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Tamara King
- College of Osteopathic Medicine, Department of Biomedical Sciences, Biddeford, ME 04005, United States
| | - Geneva E Cruz
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
| | - Steve N Popoff
- Lewis Katz School of Medicine at Temple University, Department of Anatomy and Cell Biology, Philadelphia, PA 19140, United States
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Américo-Da-Silva L, Diaz J, Bustamante M, Mancilla G, Oyarzún I, Verdejo HE, Quiroga C. A new role for HERPUD1 and ERAD activation in osteoblast differentiation and mineralization. FASEB J 2018; 32:4681-4695. [PMID: 29570393 DOI: 10.1096/fj.201701229rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Bone integrity depends on a finely tuned balance between bone synthesis by osteoblasts and resorption by osteoclasts. The secretion capacity of mature osteoblasts requires strict control of proteostasis. Endoplasmic reticulum-associated degradation (ERAD) prevents the accumulation of unfolded ER proteins via dislocation to the cytosol and degradation by the proteasome. The ER membrane protein, homocysteine-inducible endoplasmic reticulum protein with ubiquitin-like domain 1 (HERPUD1), is a key component of the ERAD multiprotein complex which helps to stabilize the complex and facilitate the efficient degradation of unfolded proteins. HERPUD1 expression is strongly up-regulated by the unfolded protein response and cellular stress. The aim of the current study was to establish whether HERPUD1 and ERAD play roles in osteoblast differentiation and maturation. We evaluated preosteoblastic MC3T3-E1 cell and primary rat osteoblast differentiation by measuring calcium deposit levels, alkaline phosphatase activity, and runt-related transcription factor 2 and osterix expression. We found that ERAD and proteasomal degradation were activated and that HERPUD1 expression was increased as osteoblast differentiation progressed. The absence of HERPUD1 blocked osteoblast mineralization in vitro and significantly reduced alkaline phosphatase activity. In contrast, HERPUD1 overexpression activated the osteoblast differentiation program. Our results demonstrate that HERPUD1 and ERAD are important for the activation of the osteoblast maturation program and may be useful new targets for elucidating bone physiology.-Américo-Da-Silva, L., Diaz, J., Bustamante, M., Mancilla, G., Oyarzún, I., Verdejo, H. E., Quiroga, C. A new role for HERPUD1 and ERAD activation in osteoblast differentiation and mineralization.
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Affiliation(s)
- Luan Américo-Da-Silva
- División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jheimmy Diaz
- División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mario Bustamante
- División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Georthan Mancilla
- División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ingrid Oyarzún
- División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Hugo E Verdejo
- División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Clara Quiroga
- División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile
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Sapir-Koren R, Livshits G. Postmenopausal osteoporosis in rheumatoid arthritis: The estrogen deficiency-immune mechanisms link. Bone 2017; 103:102-115. [PMID: 28666971 DOI: 10.1016/j.bone.2017.06.020] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 06/13/2017] [Accepted: 06/26/2017] [Indexed: 12/20/2022]
Abstract
Rheumatoid arthritis (RA) is characterized, among other factors, by systemic bone loss, reaching ~50% prevalence of osteoporosis in postmenopausal women. This is roughly a doubled prevalence in comparison with age-matched non-RA women. Postmenopausal RA women are more likely to be sero-positive for the anti-citrullinated peptide antibody (ACPA). Our extensive review of recent scientific literature enabled us to propose several mechanisms as responsible for the accelerated bone loss in ACPA(+) RA postmenopausal women. Menopause-associated estrogen deficiency plays a major role in these pathological mechanisms, as follows.
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Affiliation(s)
- Rony Sapir-Koren
- Human Population Biology Research Group, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
| | - Gregory Livshits
- Human Population Biology Research Group, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Lilian and Marcel Pollak Chair of Biological Anthropology, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
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35
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Wang Z, Jia Y, Du F, Chen M, Dong X, Chen Y, Huang W. IL-17A Inhibits Osteogenic Differentiation of Bone Mesenchymal Stem Cells via Wnt Signaling Pathway. Med Sci Monit 2017; 23:4095-4101. [PMID: 28837545 PMCID: PMC5580517 DOI: 10.12659/msm.903027] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Interleukin-17A (IL-17A) is not only an important modulator of inflammatory reactions, but also affects bone metabolism, which is involved in osteogenic differentiation of stem cells. However, the role and mechanism of IL-17A in osteogenic differentiation of bone mesenchymal stem cells (BMSCs) are not fully understood. In this study, we investigated the role and mechanism of IL-17A in osteogenic differentiation of BMSCs. Material/Methods The osteogenic differentiation of BMSCs was induced by osteoblast-induction medium with IL-17A or without IL-17A. The osteogenic differentiation of BMSCs was confirmed by the alkaline phosphatase and alizarin red staining. The lentiviral plasmid was used to construct the sFRP1-shRNA expression vector. The associated osteogenic differentiation marks (RUNX2, ALP, OPN), Wnt signaling pathway inhibitor (sFRP1), and modulators of Wnt signaling pathway (Wnt3, Wnt6) were detected by qRT-PCR and Western blot method. Results The results showed that the addition of IL-17A inhibited osteogenic differentiation of BMSCs. IL-17A induced up-regulated expression of sFRP1 and down-regulated expression of Wnt3 and Wnt6 in BMSCs. In addition, sFRP1-shRNA abolished the inhibition effect of IL-17A in osteogenic differentiation of BMSCs and induced up-regulated expression of Wnt3 and Wnt6 in the Wnt signaling pathway in BMSCs. Conclusions Our findings show that IL-17A inhibits osteogenic differentiation of bone mesenchymal stem cells via the Wnt signaling pathway.
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Affiliation(s)
- Zhenguo Wang
- Department of Stomatology, The 1st Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China (mainland)
| | - Ying Jia
- Department of Stomatology, The 1st Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China (mainland)
| | - Fu Du
- Jindian Dendure Chain Group, Chengdu, Sichuan, China (mainland)
| | - Min Chen
- Department of Stomatology, The 1st Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China (mainland)
| | - Xiuhua Dong
- Department of Stomatology, The 1st Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China (mainland)
| | - Yan Chen
- Department of Stomatology, The 1st Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China (mainland)
| | - Wen Huang
- Department of Anesthesiology, The 1st Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China (mainland)
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Liu J, Liang C, Guo B, Wu X, Li D, Zhang Z, Zheng K, Dang L, He X, Lu C, Peng S, Pan X, Zhang BT, Lu A, Zhang G. Increased PLEKHO1 within osteoblasts suppresses Smad-dependent BMP signaling to inhibit bone formation during aging. Aging Cell 2017; 16:360-376. [PMID: 28083909 PMCID: PMC5334543 DOI: 10.1111/acel.12566] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2016] [Indexed: 12/13/2022] Open
Abstract
Emerging evidence indicates that the dysregulation of protein ubiquitination plays a crucial role in aging‐associated diseases. Smad‐dependent canonical BMP signaling pathway is indispensable for osteoblastic bone formation, which could be disrupted by the ubiquitination and subsequent proteasomal degradation of Smad1/5, the key molecules for BMP signaling transduction. However, whether the dysregulation of Smad1/5 ubiquitination and disrupted BMP signaling pathway is responsible for the age‐related bone formation reduction is still underexplored. Pleckstrin homology domain‐containing family O member 1 (PLEKHO1) is a previously identified ubiquitination‐related molecule that could specifically target the linker region between the WW domains of Smurf1 to promote the ubiquitination of Smad1/5. Here, we found an age‐related increase in the expression of PLEKHO1 in bone specimens from either fractured patients or aging rodents, which was associated with the age‐related reduction in Smad‐dependent BMP signaling and bone formation. By genetic approach, we demonstrated that loss of Plekho1 in osteoblasts could promote the Smad‐dependent BMP signaling and alleviated the age‐related bone formation reduction. In addition, osteoblast‐specific Smad1 overexpression had beneficial effect on bone formation during aging, which could be counteracted after overexpressing Plekho1 within osteoblasts. By pharmacological approach, we showed that osteoblast‐targeted Plekho1 siRNA treatment could enhance Smad‐dependent BMP signaling and promote bone formation in aging rodents. Taken together, it suggests that the increased PLEKHO1 could suppress Smad‐dependent BMP signaling to inhibit bone formation during aging, indicating the translational potential of targeting PLEKHO1 in osteoblast as a novel bone anabolic strategy for reversing established osteoporosis during aging.
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Affiliation(s)
- Jin Liu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
| | - Chao Liang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
| | - Baosheng Guo
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
| | - Xiaohao Wu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
| | - Defang Li
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
| | - Zongkang Zhang
- School of Chinese Medicine; Faculty of Medicine; The Chinese University of Hong Kong; Hong Kong SAR China
| | - Kang Zheng
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Basic Research in Clinical Medicine; China Academy of Chinese Medical Sciences; Beijing China
| | - Lei Dang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
| | - Xiaojuan He
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Basic Research in Clinical Medicine; China Academy of Chinese Medical Sciences; Beijing China
| | - Changwei Lu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Department of Orthopaedics; Xi'an Third Hospital; Xi'an, Chinajing China
| | - Songlin Peng
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Department of Spine Surgery; Shenzhen People's Hospital; Ji Nan University Second College of Medicine; Shenzhen China
| | - Xiaohua Pan
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Department of Orthopaedics and Traumatology; Bao'an Hospital Affiliated to Southern Medical University & Shenzhen 8th People Hospital; Shenzhen China
| | - Bao-Ting Zhang
- School of Chinese Medicine; Faculty of Medicine; The Chinese University of Hong Kong; Hong Kong SAR China
| | - Aiping Lu
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
| | - Ge Zhang
- Institute for Advancing Translational Medicine in Bone & Joint Diseases; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Integrated Bioinfomedicine and Translational Science; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong SAR China
- Institute of Precision Medicine and Innovative Drug Discovery; Hong Kong Baptist University; Hong Kong SAR China
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Liu J, Li X, Zhang H, Gu R, Wang Z, Gao Z, Xing L. Ubiquitin E3 ligase Itch negatively regulates osteoblast function by promoting proteasome degradation of osteogenic proteins. Bone Joint Res 2017; 6:154-161. [PMID: 28298321 PMCID: PMC5376659 DOI: 10.1302/2046-3758.63.bjr-2016-0237.r1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/17/2017] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Ubiquitin E3 ligase-mediated protein degradation regulates osteoblast function. Itch, an E3 ligase, affects numerous cell functions by regulating ubiquitination and proteasomal degradation of related proteins. However, the Itch-related cellular and molecular mechanisms by which osteoblast differentiation and function are elevated during bone fracture repair are as yet unknown. METHODS We examined the expression levels of E3 ligases and NF-κB members in callus samples during bone fracture repair by quantitative polymerase chain reaction (qPCR) and the total amount of ubiquitinated proteins by Western blot analysis in wild-type (WT) mice. The expression levels of osteoblast-associated genes in fracture callus from Itch knockout (KO) mice and their WT littermates were examined by qPCR. The effect of NF-κB on Itch expression in C2C12 osteoblast cells was determined by a chromatin immunoprecipitation (ChIP) assay. RESULTS The expression levels of WW Domain Containing E3 Ubiquitin Protein Ligase 1 (Wwp1), SMAD Specific E3 Ubiquitin Protein Ligase 1 (Smurf1), SMAD Specific E3 Ubiquitin Protein Ligase 2 (Smurf2) and Itch were all significantly increased in the fracture callus of WT mice, which was associated with elevated expression of NF-κB members and total ubiquitinated proteins. Callus tissue isolated from Itch KO mice expressed higher levels of osteoblast-associated genes, including Runx2, a positive regulator of osteoblast differentiation, but osteoclast-associated genes were not increased. Both NF-κB RelA and RelB proteins were found to bind to the NF-κB binding site in the mouse Itch promoter. CONCLUSIONS Our findings indicate that Itch depletion may have a strong positive effect on osteoblast differentiation in fracture callus. Thus, ubiquitin E3 ligase Itch could be a potential target for enhancing bone fracture healing.Cite this article: J. Liu, X. Li, H. Zhang, R. Gu, Z. Wang, Z. Gao, L. Xing. Ubiquitin E3 ligase Itch negatively regulates osteoblast function by promoting proteasome degradation of osteogenic proteins. Bone Joint Res 2017;6:154-161. DOI: 10.1302/2046-3758.63.BJR-2016-0237.R1.
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Affiliation(s)
- J Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Boulevard, Changchun, Jilin 130033, China
| | - X Li
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Centre, 601 Elmwood Ave, Rochester, NY 14642, USA
| | - H Zhang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Centre, 601 Elmwood Ave, Rochester, NY 14642, USA
| | - R Gu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Boulevard, Changchun, Jilin 130033, China
| | - Z Wang
- Fourth Hospital of Hebei Medical University, 12 Jiankang Road, Shijiazhuang 050011, China
| | - Z Gao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Boulevard, Changchun, Jilin 130033, China
| | - L Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Centre, 601 Elmwood Ave, Rochester, NY 14642, USA
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Lian C, Wu Z, Gao B, Peng Y, Liang A, Xu C, Liu L, Qiu X, Huang J, Zhou H, Cai Y, Su P, Huang D. Melatonin reversed tumor necrosis factor-alpha-inhibited osteogenesis of human mesenchymal stem cells by stabilizing SMAD1 protein. J Pineal Res 2016; 61:317-27. [PMID: 27265199 DOI: 10.1111/jpi.12349] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/03/2016] [Indexed: 12/29/2022]
Abstract
Tumor necrosis factor-alpha (TNFα) plays a pivotal role in inflammation-related osteoporosis through the promotion of bone resorption and suppression of bone formation. Numerous drugs have been produced to treat osteoporosis by inhibiting bone resorption, but they offer few benefits to bone formation, which is what is needed by patients with severe bone loss. Melatonin, which can exert both anti-inflammatory and pro-osteogenic effects, shows promise in overcoming TNFα-inhibited osteogenesis and deserves further research. This study demonstrated that melatonin rescued TNFα-inhibited osteogenesis of human mesenchymal stem cells and that the interactions between SMURF1 and SMAD1 mediated the crosstalk between melatonin signaling and TNFα signaling. Additionally, melatonin treatment was found to downregulate TNFα-induced SMURF1 expression and then decrease SMURF1-mediated ubiquitination and degradation of SMAD1 protein, leading to steady bone morphogenetic protein-SMAD1 signaling activity and restoration of TNFα-impaired osteogenesis. Thus, melatonin has prospects for treating osteoporosis caused by inflammatory factors due to its multifaceted functions on regulation of bone formation, bone resorption, and inflammation. Further studies will focus on unveiling the specific mechanisms by which melatonin downregulates SMURF1 expression and confirming the clinical therapeutic value of melatonin in the prevention and therapy of bone loss associated with inflammation.
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Affiliation(s)
- Chengjie Lian
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zizhao Wu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Bo Gao
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan Peng
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Anjing Liang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Caixia Xu
- Research Centre for Translational Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Lei Liu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xianjian Qiu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Junjun Huang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Hang Zhou
- Department of Orthopedics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yifeng Cai
- Department of Orthopedics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Peiqiang Su
- Department of Orthopedics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Dongsheng Huang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
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Selective compounds enhance osteoblastic activity by targeting HECT domain of ubiquitin ligase Smurf1. Oncotarget 2016; 8:50521-50533. [PMID: 28881580 PMCID: PMC5584161 DOI: 10.18632/oncotarget.10648] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/29/2016] [Indexed: 01/07/2023] Open
Abstract
The HECT-type ubiquitin ligase Smurf1 (Smad ubiquitination regulatory factor-1) plays the prominent role in regulation of bone formation, embryonic development, and tumorigenesis by directing the ubiquitin-proteasomal degradation of specific targets. In contrast with RING-type E3s, the catalytic HECT domain of Smurf1 firstly binds to and then transfers ubiquitin (Ub) molecules onto the substrates. The Smurf1-Ub interaction is required for Smurf1 catalytic ligase activity to promote substrate degradation. However, so far specific regulators or compounds controlling Smurf1-Ub interaction and the ligase activity have not been identified. Here we report two small molecule compounds targeting Ub binding region of HECT domain interrupt Smurf1-Ub contact, inhibit Smurf1 ligase activity and stabilize BMP signal components Smad1/5 protein level. Furthermore, these compounds increase BMP signal responsiveness and enhance osteoblastic activity in cultured cells. These findings provide a novel strategy through targeting Smurf1 ligase activity to potentially treat bone disorders such as osteoporosis.
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40
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Zangari M, Suva LJ. The effects of proteasome inhibitors on bone remodeling in multiple myeloma. Bone 2016; 86:131-8. [PMID: 26947893 PMCID: PMC5516941 DOI: 10.1016/j.bone.2016.02.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/15/2016] [Accepted: 02/29/2016] [Indexed: 10/22/2022]
Abstract
Bone disease is a characteristic feature of multiple myeloma, a malignant plasma cell dyscrasia. In patients with multiple myeloma, the normal process of bone remodeling is dysregulated by aberrant bone marrow plasma cells, resulting in increased bone resorption, prevention of new bone formation, and consequent bone destruction. The ubiquitin-proteasome system, which is hyperactive in patients with multiple myeloma, controls the catabolism of several proteins that regulate bone remodeling. Clinical studies have reported that treatment with the first-in-class proteasome inhibitor bortezomib reduces bone resorption and increases bone formation and bone mineral density in patients with multiple myeloma. Since the introduction of bortezomib in 2003, several next-generation proteasome inhibitors have also been used clinically, including carfilzomib, oprozomib, ixazomib, and delanzomib. This review summarizes the available preclinical and clinical evidence regarding the effect of proteasome inhibitors on bone remodeling in multiple myeloma.
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Affiliation(s)
- Maurizio Zangari
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | - Larry J Suva
- Department of Orthopedic Surgery, Center for Orthopaedic Research, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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Loi F, Córdova LA, Pajarinen J, Lin TH, Yao Z, Goodman SB. Inflammation, fracture and bone repair. Bone 2016; 86:119-30. [PMID: 26946132 PMCID: PMC4833637 DOI: 10.1016/j.bone.2016.02.020] [Citation(s) in RCA: 689] [Impact Index Per Article: 86.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/30/2015] [Accepted: 02/29/2016] [Indexed: 12/20/2022]
Abstract
The reconstitution of lost bone is a subject that is germane to many orthopedic conditions including fractures and non-unions, infection, inflammatory arthritis, osteoporosis, osteonecrosis, metabolic bone disease, tumors, and periprosthetic particle-associated osteolysis. In this regard, the processes of acute and chronic inflammation play an integral role. Acute inflammation is initiated by endogenous or exogenous adverse stimuli, and can become chronic in nature if not resolved by normal homeostatic mechanisms. Dysregulated inflammation leads to increased bone resorption and suppressed bone formation. Crosstalk among inflammatory cells (polymorphonuclear leukocytes and cells of the monocyte-macrophage-osteoclast lineage) and cells related to bone healing (cells of the mesenchymal stem cell-osteoblast lineage and vascular lineage) is essential to the formation, repair and remodeling of bone. In this review, the authors provide a comprehensive summary of the literature related to inflammation and bone repair. Special emphasis is placed on the underlying cellular and molecular mechanisms, and potential interventions that can favorably modulate the outcome of clinical conditions that involve bone repair.
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Affiliation(s)
- Florence Loi
- 300 Pasteur Drive, Edwards Building, Room R116, Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA.
| | - Luis A Córdova
- 300 Pasteur Drive, Edwards Building, Room R116, Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA; Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Chile, Sergio Livingstone Polhammer 943, Independencia, 8380000 Santiago, Chile.
| | - Jukka Pajarinen
- 300 Pasteur Drive, Edwards Building, Room R116, Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA.
| | - Tzu-hua Lin
- 300 Pasteur Drive, Edwards Building, Room R116, Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA.
| | - Zhenyu Yao
- 300 Pasteur Drive, Edwards Building, Room R116, Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA.
| | - Stuart B Goodman
- 300 Pasteur Drive, Edwards Building, Room R116, Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA; 300 Pasteur Drive, Edwards Building, Room R114, Department of Bioengineering, Stanford University, Stanford, CA 94305, USA.
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Trauma-induced heterotopic bone formation and the role of the immune system: A review. J Trauma Acute Care Surg 2016; 80:156-65. [PMID: 26491794 DOI: 10.1097/ta.0000000000000883] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Extremity trauma, spinal cord injuries, head injuries, and burn injuries place patients at high risk of pathologic extraskeletal bone formation. This heterotopic bone causes severe pain, deformities, and joint contractures. The immune system has been increasingly implicated in this debilitating condition. This review summarizes the various roles immune cells and inflammation play in the formation of ectopic bone and highlights potential areas of future investigation and treatment. Cell types in both the innate and adaptive immune system such as neutrophils, macrophages, mast cells, B cells, and T cells have all been implicated as having a role in ectopic bone formation through various mechanisms. Many of these cell types are promising areas of therapeutic investigation for potential treatment. The immune system has also been known to also influence osteoclastogenesis, which is heavily involved in ectopic bone formation. Chronic inflammation is also known to have an inhibitory role in the formation of ectopic bone, whereas acute inflammation is necessary for ectopic bone formation.
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43
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Li J, Liu X, Zuo B, Zhang L. The Role of Bone Marrow Microenvironment in Governing the Balance between Osteoblastogenesis and Adipogenesis. Aging Dis 2015; 7:514-25. [PMID: 27493836 DOI: 10.14336/ad.2015.1206] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 12/06/2015] [Indexed: 01/08/2023] Open
Abstract
In the adult bone marrow, osteoblasts and adipocytes share a common precursor called mesenchymal stem cells (MSCs). The plasticity between the two lineages has been confirmed over the past decades, and has important implications in the etiology of bone diseases such as osteoporosis, which involves an imbalance between osteoblasts and adipocytes. The commitment and differentiation of bone marrow (BM) MSCs is tightly controlled by the local environment that maintains a balance between osteoblast lineage and adipocyte. However, pathological conditions linked to osteoporosis can change the BM microenvironment and shift the MSC fate to favor adipocytes over osteoblasts, and consequently decrease bone mass with marrow fat accumulation. This review discusses the changes that occur in the BM microenvironment under pathological conditions, and how these changes affect MSC fate. We suggest that manipulating local environments could have therapeutic implications to avoid bone loss in diseases like osteoporosis.
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Affiliation(s)
- Jiao Li
- 1Department of Cell Biology, Zunyi Medical College, Zunyi, China
| | - Xingyu Liu
- 1Department of Cell Biology, Zunyi Medical College, Zunyi, China
| | - Bin Zuo
- 2Department of Orthopedic Surgery, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Li Zhang
- 3Department of Orthopedics, Tenth People's Hospital, Shanghai Tong Ji University, School of Medicine, Shanghai, China
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Massicotte VS, Frara N, Harris MY, Amin M, Wade CK, Popoff SN, Barbe MF. Prolonged performance of a high repetition low force task induces bone adaptation in young adult rats, but loss in mature rats. Exp Gerontol 2015; 72:204-17. [PMID: 26517953 PMCID: PMC4655973 DOI: 10.1016/j.exger.2015.10.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 10/06/2015] [Accepted: 10/26/2015] [Indexed: 10/22/2022]
Abstract
We have shown that prolonged repetitive reaching and grasping tasks lead to exposure-dependent changes in bone microarchitecture and inflammatory cytokines in young adult rats. Since aging mammals show increased tissue inflammatory cytokines, we sought here to determine if aging, combined with prolonged performance of a repetitive upper extremity task, enhances bone loss. We examined the radius, forearm flexor muscles, and serum from 16 mature (14-18 months of age) and 14 young adult (2.5-6.5 months of age) female rats after performance of a high repetition low force (HRLF) reaching and grasping task for 12 weeks. Young adult HRLF rats showed enhanced radial bone growth (e.g., increased trabecular bone volume, osteoblast numbers, bone formation rate, and mid-diaphyseal periosteal perimeter), compared to age-matched controls. Mature HRLF rats showed several indices of radial bone loss (e.g., decreased trabecular bone volume, and increased cortical bone thinning, porosity, resorptive spaces and woven bone formation), increased osteoclast numbers and inflammatory cytokines, compared to age-matched controls and young adult HRLF rats. Mature rats weighed more yet had lower maximum reflexive grip strength, than young adult rats, although each age group was able to pull at the required reach rate (4 reaches/min) and required submaximal pulling force (30 force-grams) for a food reward. Serum estrogen levels and flexor digitorum muscle size were similar in each age group. Thus, mature rats had increased bone degradative changes than in young adult rats performing the same repetitive task for 12 weeks, with increased inflammatory cytokine responses and osteoclast activity as possible causes.
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Affiliation(s)
- Vicky S Massicotte
- Department of Anatomy and Cell Biology, Temple University School of Medicine, 3500 North Broad St., Philadelphia, PA 19140, USA
| | - Nagat Frara
- Department of Anatomy and Cell Biology, Temple University School of Medicine, 3500 North Broad St., Philadelphia, PA 19140, USA
| | - Michele Y Harris
- Department of Anatomy and Cell Biology, Temple University School of Medicine, 3500 North Broad St., Philadelphia, PA 19140, USA
| | - Mamta Amin
- Department of Anatomy and Cell Biology, Temple University School of Medicine, 3500 North Broad St., Philadelphia, PA 19140, USA
| | - Christine K Wade
- Department of Physical Therapy, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Steven N Popoff
- Department of Anatomy and Cell Biology, Temple University School of Medicine, 3500 North Broad St., Philadelphia, PA 19140, USA
| | - Mary F Barbe
- Department of Anatomy and Cell Biology, Temple University School of Medicine, 3500 North Broad St., Philadelphia, PA 19140, USA; Department of Physical Therapy, Temple University, Philadelphia, PA 19140, USA.
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45
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Beier EE, Holz JD, Sheu TJ, Puzas JE. Elevated Lifetime Lead Exposure Impedes Osteoclast Activity and Produces an Increase in Bone Mass in Adolescent Mice. Toxicol Sci 2015; 149:277-88. [PMID: 26518054 DOI: 10.1093/toxsci/kfv234] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The heavy metal lead (Pb) has a deleterious effect on skeletal health. Because bone mass is maintained through a balance of bone formation and resorption, it is important to understand the effect of Pb levels on osteoblastic and osteoclastic activity. Pb exposure is associated with low bone mass in animal models and human populations; however, the correlation between Pb dosing and corresponding bone mass has been poorly explored. Thus, mice were exposed to increasing Pb and at higher levels (500 ppm), there was unexpectedly an increase in femur-tibial bone mass by 3 months of age. This is contrary to several studies alluded to earlier. Increased bone volume (BV) was accompanied by a significant increase in cortical thickness of the femur and trabecular bone that extended beyond the epiphyseal area into the marrow cavity. Subsequent evaluations revealed an increase in osteoclast numbers with high Pb exposure, but a deficiency in osteoclastic activity. These findings were substantiated by observed increases in levels of the resorption-altering hormones calcitonin and estrogen. In addition we found that pro-osteoclastic nuclear factor-kappa beta (NF-κB) pathway activity was dose dependently elevated with Pb, both in vivo and in vitro. However, the ability of osteoclasts to resorb bone was depressed in the presence of Pb in media and within test bone wafers. These findings indicate that exposure to high Pb levels disrupts early life bone accrual that may involve a disruption of osteoclast activity. This study accentuates the dose dependent variation in Pb exposure and consequent effects on skeletal health.
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Affiliation(s)
- Eric E Beier
- *Center for Musculoskeletal Research; Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, 14624; and
| | - Jonathan D Holz
- *Center for Musculoskeletal Research; Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, 14624; and Department of Math and Natural Sciences, D'Youville College, Buffalo, New York, 14201
| | | | - J Edward Puzas
- *Center for Musculoskeletal Research; Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, 14624; and
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Boonanantanasarn K, Lee HL, Baek K, Woo KM, Ryoo HM, Baek JH, Kim GS. EGF Inhibits Wnt/β-Catenin-Induced Osteoblast Differentiation by Promoting β-Catenin Degradation. J Cell Biochem 2015; 116:2849-57. [DOI: 10.1002/jcb.25231] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 05/14/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Kanitsak Boonanantanasarn
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute; Seoul National University; Seoul Korea
- Departments of Anatomy, Faculty of Dentistry; Mahidol University; Bangkok Thailand
| | - Hye-Lim Lee
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute; Seoul National University; Seoul Korea
- Laboratory of Molecular Signaling, Division of Oral Biology and Medicine; School of Dentistry and Broad Stem Cell Research Center, University of California, Los Angeles; USA
| | - Kyunghwa Baek
- Department of Pharmacology, College of Dentistry; Gangneung-Wonju National University; Gangwondo Korea
| | - Kyung Mi Woo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute; Seoul National University; Seoul Korea
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute; Seoul National University; Seoul Korea
| | - Jeong-Hwa Baek
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute; Seoul National University; Seoul Korea
| | - Gwan-Shik Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute; Seoul National University; Seoul Korea
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47
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Girgis CM, Baldock PA, Downes M. Vitamin D, muscle and bone: Integrating effects in development, aging and injury. Mol Cell Endocrinol 2015; 410:3-10. [PMID: 25837735 DOI: 10.1016/j.mce.2015.03.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 03/24/2015] [Accepted: 03/24/2015] [Indexed: 12/14/2022]
Abstract
Beyond the established effects of muscle loading on bone, a complex network of hormones and growth factors integrates these adjacent tissues. One such hormone, vitamin D, exerts broad-ranging effects in muscle and bone calcium handling, differentiation and development. Vitamin D also modulates muscle and bone-derived hormones, potentially facilitating cross-talk between these tissues. In the clinical setting, vitamin D deficiency or mutations of the vitamin D receptor result in generalized atrophy of muscle and bone, suggesting coordinated effects of vitamin D at these sites. In this review, we discuss emerging evidence that vitamin D exerts specific effects throughout the life of the musculoskeletal system - in development, aging and injury. From this holistic viewpoint, we offer new insights into an old debate: whether vitamin D's effects in the musculoskeletal system are direct via local VDR signals or indirect via its systemic effects in calcium and phosphate homeostasis.
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Affiliation(s)
- Christian M Girgis
- Westmead Millennium Institute for Medical Research, Sydney, NSW, Australia; Faculty of Medicine, University of Sydney, Sydney, NSW, Australia; Garvan Institute of Medical Research, Sydney, NSW, Australia.
| | - Paul A Baldock
- Garvan Institute of Medical Research, Sydney, NSW, Australia
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48
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Vimalraj S, Arumugam B, Miranda P, Selvamurugan N. Runx2: Structure, function, and phosphorylation in osteoblast differentiation. Int J Biol Macromol 2015; 78:202-8. [DOI: 10.1016/j.ijbiomac.2015.04.008] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 02/07/2023]
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49
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Le Henaff C, Mansouri R, Modrowski D, Zarka M, Geoffroy V, Marty C, Tarantino N, Laplantine E, Marie PJ. Increased NF-κB Activity and Decreased Wnt/β-Catenin Signaling Mediate Reduced Osteoblast Differentiation and Function in ΔF508 Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Mice. J Biol Chem 2015; 290:18009-18017. [PMID: 26060255 DOI: 10.1074/jbc.m115.646208] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Indexed: 01/11/2023] Open
Abstract
The prevalent human ΔF508 mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) is associated with reduced bone formation and bone loss in mice. The molecular mechanisms by which the ΔF508-CFTR mutation causes alterations in bone formation are poorly known. In this study, we analyzed the osteoblast phenotype in ΔF508-CFTR mice and characterized the signaling mechanisms underlying this phenotype. Ex vivo studies showed that the ΔF508-CFTR mutation negatively impacted the differentiation of bone marrow stromal cells into osteoblasts and the activity of osteoblasts, demonstrating that the ΔF508-CFTR mutation alters both osteoblast differentiation and function. Treatment with a CFTR corrector rescued the abnormal collagen gene expression in ΔF508-CFTR osteoblasts. Mechanistic analysis revealed that NF-κB signaling and transcriptional activity were increased in mutant osteoblasts. Functional studies showed that the activation of NF-κB transcriptional activity in mutant osteoblasts resulted in increased β-catenin phosphorylation, reduced osteoblast β-catenin expression, and altered expression of Wnt/β-catenin target genes. Pharmacological inhibition of NF-κB activity or activation of canonical Wnt signaling rescued Wnt target gene expression and corrected osteoblast differentiation and function in bone marrow stromal cells and osteoblasts from ΔF508-CFTR mice. Overall, the results show that the ΔF508-CFTR mutation impairs osteoblast differentiation and function as a result of overactive NF-κB and reduced Wnt/β-catenin signaling. Moreover, the data indicate that pharmacological inhibition of NF-κB or activation of Wnt/β-catenin signaling can rescue the abnormal osteoblast differentiation and function induced by the prevalent ΔF508-CFTR mutation, suggesting novel therapeutic strategies to correct the osteoblast dysfunctions in cystic fibrosis.
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Affiliation(s)
- Carole Le Henaff
- UMR-1132 INSERM, 75475 Paris; Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris
| | - Rafik Mansouri
- UMR-1132 INSERM, 75475 Paris; Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris
| | - Dominique Modrowski
- UMR-1132 INSERM, 75475 Paris; Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris
| | - Mylène Zarka
- UMR-1132 INSERM, 75475 Paris; Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris
| | - Valérie Geoffroy
- UMR-1132 INSERM, 75475 Paris; Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris
| | - Caroline Marty
- UMR-1132 INSERM, 75475 Paris; Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris
| | - Nadine Tarantino
- Laboratoire de Signalisation et Pathogenèse, Institut Pasteur, 75015 Paris, France
| | - Emmanuel Laplantine
- Laboratoire de Signalisation et Pathogenèse, Institut Pasteur, 75015 Paris, France
| | - Pierre J Marie
- UMR-1132 INSERM, 75475 Paris; Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris.
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50
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Jang WG, Jeong BC, Kim EJ, Choi H, Oh SH, Kim DK, Koo SH, Choi HS, Koh JT. Cyclic AMP Response Element-binding Protein H (CREBH) Mediates the Inhibitory Actions of Tumor Necrosis Factor α in Osteoblast Differentiation by Stimulating Smad1 Degradation. J Biol Chem 2015; 290:13556-66. [PMID: 25873397 DOI: 10.1074/jbc.m114.587923] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Indexed: 11/06/2022] Open
Abstract
Endoplasmic reticulum (ER) stress transducers, such as old astrocyte specifically induced substance (OASIS) and activating transcription factor 6 (ATF6), which are induced by bone morphogenetic protein 2 (BMP2), regulate bone formation and osteoblast differentiation. Here, we examined the role of cAMP response element-binding protein H (CREBH), a member of the same family of ER membrane-bound basic leucine zipper (bZIP) transcription factors as OASIS and ATF6, in osteoblast differentiation and bone formation. Proinflammatory cytokine TNFα increased CREBH expression by up-regulating the nuclear factor-κB (NF-κB) signaling pathway in osteoblasts, increased the level of N-terminal fragment of CREBH in the nucleus, and inhibited BMP2 induction of osteoblast specific gene expression. Overexpression of CREBH suppressed BMP2-induced up-regulation of the osteogenic markers runt-related transcription factor 2 (Runx2), alkaline phosphatase (ALP), and osteocalcin (OC) in MC3T3-E1 cells and primary osteoblasts, as well as BMP2-induced ALP activity and OC protein production. In contrast, knockdown of CREBH attenuated the inhibitory effect of TNFα on BMP2-induced osteoblast differentiation. Mechanistic studies revealed that CREBH increased the expression of Smad ubiquitination regulatory factor 1 (Smurf1), leading to ubiquitin-dependent degradation of Smad1, whereas knockdown of CREBH inhibited TNFα-mediated degradation of Smad1 by Smurf1. Consistent with these in vitro findings, administration of Ad-CREBH inhibited BMP2-induced ectopic and orthotopic bone formation in vivo. Taken together, these results suggest that CREBH is a novel negative regulator of osteoblast differentiation and bone formation.
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Affiliation(s)
- Won-Gu Jang
- From the Research Center for Biomineralization Disorders, Department of Pharmacology and Dental Therapeutics, School of Dentistry, and the Department of Biotechnology, School of Engineering, Daegu University, Gyeongsan 712-714, and
| | - Byung-Chul Jeong
- From the Research Center for Biomineralization Disorders, Department of Pharmacology and Dental Therapeutics, School of Dentistry, and
| | - Eun-Jung Kim
- From the Research Center for Biomineralization Disorders, Department of Pharmacology and Dental Therapeutics, School of Dentistry, and
| | - Hyuck Choi
- From the Research Center for Biomineralization Disorders, Department of Pharmacology and Dental Therapeutics, School of Dentistry, and
| | - Sin-Hye Oh
- From the Research Center for Biomineralization Disorders, Department of Pharmacology and Dental Therapeutics, School of Dentistry, and
| | - Don-Kyu Kim
- the National Creative Research Initiatives Center for Nuclear Receptor Signals, Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757
| | - Seung-Hoi Koo
- the Division of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Seoul-136-701, Republic-of-Korea
| | - Hueng-Sik Choi
- the National Creative Research Initiatives Center for Nuclear Receptor Signals, Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757,
| | - Jeong-Tae Koh
- From the Research Center for Biomineralization Disorders, Department of Pharmacology and Dental Therapeutics, School of Dentistry, and
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