1
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Zhao X, Lin S, Ren H, Sun S, Zheng L, Chen LF, Wang Z. The histone methyltransferase ASH1L protects against bone loss by inhibiting osteoclastogenesis. Cell Death Differ 2024; 31:605-617. [PMID: 38431690 PMCID: PMC11094046 DOI: 10.1038/s41418-024-01274-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 03/05/2024] Open
Abstract
Absent, small, or homeotic1-like (ASH1L) is a histone lysine methyltransferase that generally functions as a transcriptional activator in controlling cell fate. So far, its physiological relevance in bone homeostasis and osteoclast differentiation remains elusive. Here, by conditional deleting Ash1l in osteoclast progenitors of mice, we found ASH1L deficiency resulted in osteoporosis and potentiation of osteoclastogenesis in vivo and in vitro. Mechanistically, ASH1L binds the promoter of the Src homology 3 and cysteine-rich domain 2 (Stac2) and increases the gene's transcription via histone 3 lysine 4 (H3K4) trimethylation modification, thus augmenting the STAC2's protection against receptor activator of nuclear factor kB ligand (RANKL)-initiated inflammation during osteoclast formation. Collectively, we demonstrate the first piece of evidence to prove ASH1L as a critical checkpoint during osteoclastogenesis. The work sheds new light on our understanding about the biological function of ASH1L in bone homeostasis, therefore providing a valuable therapeutic target for the treatment of osteoporosis or inflammatory bone diseases.
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Affiliation(s)
- Xiaoli Zhao
- Department of Biochemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuai Lin
- Department of Biochemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Department of Orthodontics, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Hangjiang Ren
- Department of Biochemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shenghui Sun
- Department of Biochemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Liyun Zheng
- Department of Biochemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lin-Feng Chen
- Department of Biochemistry, School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, USA
| | - Zhen Wang
- Department of Biochemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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2
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Bhattarai G, Jeon YM, Choi KC, Wagle S, Sim HJ, Kim JI, Zhao S, Kim JG, Cho ES, Kook SH, Lee JC. Functional improvement of collagen-based bioscaffold to enhance periodontal-defect healing via combination with dietary antioxidant and COMP-angiopoietin 1. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 135:112673. [DOI: 10.1016/j.msec.2022.112673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 12/18/2021] [Accepted: 01/16/2022] [Indexed: 10/19/2022]
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3
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Bhattarai G, So HS, Kieu TTT, Kook SH, Lee JC, Jeon YM. Astaxanthin Inhibits Diabetes-Triggered Periodontal Destruction, Ameliorates Oxidative Complications in STZ-Injected Mice, and Recovers Nrf2-Dependent Antioxidant System. Nutrients 2021; 13:3575. [PMID: 34684576 PMCID: PMC8537008 DOI: 10.3390/nu13103575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 09/29/2021] [Accepted: 10/07/2021] [Indexed: 12/12/2022] Open
Abstract
Numerous studies highlight that astaxanthin (ASTX) ameliorates hyperglycemic condition and hyperglycemia-associated chronic complications. While periodontitis and periodontic tissue degradation are also triggered under chronic hyperglycemia, the roles of ASTX on diabetes-associated periodontal destruction and the related mechanisms therein are not yet fully understood. Here, we explored the impacts of supplemental ASTX on periodontal destruction and systemic complications in type I diabetic mice. To induce diabetes, C57BL/6 mice received a single intraperitoneal injection of streptozotocin (STZ; 150 mg/kg), and the hyperglycemic mice were orally administered with ASTX (12.5 mg/kg) (STZ+ASTX group) or vehicle only (STZ group) daily for 60 days. Supplemental ASTX did not improve hyperglycemic condition, but ameliorated excessive water and feed consumptions and lethality in STZ-induced diabetic mice. Compared with the non-diabetic and STZ+ASTX groups, the STZ group exhibited severe periodontal destruction. Oral gavage with ASTX inhibited osteoclastic formation and the expression of receptor activator of nuclear factor (NF)-κB ligand, 8-OHdG, γ-H2AX, cyclooxygenase 2, and interleukin-1β in the periodontium of STZ-injected mice. Supplemental ASTX not only increased the levels of nuclear factor erythroid 2-related factor 2 (Nrf2) and osteogenic transcription factors in the periodontium, but also recovered circulating lymphocytes and endogenous antioxidant enzyme activity in the blood of STZ-injected mice. Furthermore, the addition of ASTX blocked advanced glycation end products-induced oxidative stress and growth inhibition in human-derived periodontal ligament cells by upregulating the Nrf2 pathway. Together, our results suggest that ASTX does not directly improve hyperglycemia, but ameliorates hyperglycemia-triggered periodontal destruction and oxidative systemic complications in type I diabetes.
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Affiliation(s)
- Govinda Bhattarai
- Cluster for Craniofacial Development and Regeneration Research, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea;
- Institute of Oral Biosciences, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea
| | - Han-Sol So
- Research Center of Bioactive Materials, Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Korea; (H.-S.S.); (T.T.T.K.)
| | - Thi Thu Trang Kieu
- Research Center of Bioactive Materials, Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Korea; (H.-S.S.); (T.T.T.K.)
| | - Sung-Ho Kook
- Cluster for Craniofacial Development and Regeneration Research, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea;
- Research Center of Bioactive Materials, Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Korea; (H.-S.S.); (T.T.T.K.)
| | - Jeong-Chae Lee
- Cluster for Craniofacial Development and Regeneration Research, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea;
- Institute of Oral Biosciences, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea
- Research Center of Bioactive Materials, Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Korea; (H.-S.S.); (T.T.T.K.)
| | - Young-Mi Jeon
- Cluster for Craniofacial Development and Regeneration Research, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea;
- Institute of Oral Biosciences, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju 54907, Korea
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4
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Wallace RG, Rochfort KD, Barabas P, Curtis TM, Uehara H, Ambati BK, Cummins PM. COMP-Ang1: Therapeutic potential of an engineered Angiopoietin-1 variant. Vascul Pharmacol 2021; 141:106919. [PMID: 34583025 DOI: 10.1016/j.vph.2021.106919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/15/2021] [Accepted: 09/21/2021] [Indexed: 01/20/2023]
Abstract
The Angiopoietin-1/2 system is an opportune target for therapeutic intervention in a wide range of vascular pathologies, particularly through its association with endothelium. The complex multi-domain structure of native human Angiopoietin-1 has hindered its widespread applicability as a therapeutic agent, prompting the search for alternative approaches to mimicking the Ang1:Tie2 signalling axis; a system with highly complex patterns of regulation involving multiple structurally similar molecules. An engineered variant, Cartilage Oligomeric Matrix Protein - Angiopoietin-1 (COMP-Ang1), has been demonstrated to overcome the limitations of the native molecule and activate the Tie2 pathway with several fold greater potency than Ang1, both in vitro and in vivo. The therapeutic efficacy of COMP-Ang1, at both the vascular and systemic levels, is evident from multiple studies. Beneficial impacts on skeletal muscle regeneration, wound healing and angiogenesis have been reported alongside renoprotective, anti-hypertensive and anti-inflammatory effects. COMP-Ang1 has also demonstrated synergy with other compounds to heighten bone repair, has been leveraged for potential use as a co-therapeutic for enhanced targeted cancer treatment, and has received considerable attention as an anti-leakage agent for microvascular diseases like diabetic retinopathy. This review examines the vascular Angiopoietin:Tie2 signalling mechanism, evaluates the potential therapeutic merits of engineered COMP-Ang1 in both vascular and systemic contexts, and addresses the inherent translational challenges in moving this potential therapeutic from bench-to-bedside.
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Affiliation(s)
- Robert G Wallace
- School of Biotechnology, Dublin City University, Dublin, Ireland; National Institute for Cellular Biotechnology, Dublin City University, Dublin, Ireland.
| | - Keith D Rochfort
- School of Biotechnology, Dublin City University, Dublin, Ireland; National Institute for Cellular Biotechnology, Dublin City University, Dublin, Ireland
| | - Peter Barabas
- Wellcome-Wolfson Institute for Experimental Medicine, Queens' University Belfast, Northern Ireland, UK
| | - Timothy M Curtis
- Wellcome-Wolfson Institute for Experimental Medicine, Queens' University Belfast, Northern Ireland, UK
| | | | | | - Philip M Cummins
- School of Biotechnology, Dublin City University, Dublin, Ireland; National Institute for Cellular Biotechnology, Dublin City University, Dublin, Ireland
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5
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So HS, Kim MG, Lee JC, Kook SH. Glucose oxidase induces mobilization of long-term repopulating hematopoietic cells in mice. Stem Cells Transl Med 2021; 10:1446-1453. [PMID: 34160898 PMCID: PMC8459634 DOI: 10.1002/sctm.20-0514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 05/16/2021] [Accepted: 06/06/2021] [Indexed: 12/17/2022] Open
Abstract
Hematopoietic stem progenitor cells (HSPCs) mobilized to peripheral blood, rather than those remaining in the bone marrow (BM), are commonly used as stem cell source in the clinic. As reactive oxygen species (ROS) are suggested as mediator of HSPC mobilization, we examined the impacts of glucose oxidase (GO) on peripheral mobilization of BM HSPCs and the associated mechanisms. Intravenous injection of GO induced HSPC mobilization even by single treatment, and the GO‐mobilized cells maintained their long‐term reconstituting and differentiating potentials in conditioned recipients. GO‐injected mice lived a normal life without adverse effects such as stem cell senescence, hematopoietic disorders, and blood parameter alteration. The mobilization effect of GO was even evident in animal models showing poor mobilization, such as old, 5‐fluorouracil‐treated, or alendronate‐treated mice. Importantly, combined injection of GO with granulocyte colony‐stimulating factor (G‐CSF) and/or AMD3100 enhanced more greatly HSPC mobilization than did G‐CSF, AMD3100, or both. The GO‐stimulated HSPC mobilization was almost completely attenuated by n‐acetyl‐L‐cysteine treatment. Collectively, our results not only highlight the potential role of GO in HSPC mobilization via ROS signaling, but also provide a GO‐based new strategy to improve HSPC mobilization in poorly mobilizing allogeneic or autologous donors via combination with G‐CSF and/or AMD3100.
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Affiliation(s)
- Han-Sol So
- Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, South Korea
| | - Min-Guk Kim
- Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, South Korea.,Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Jeonbuk National University, Jeonju, South Korea
| | - Jeong-Chae Lee
- Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, South Korea.,Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Jeonbuk National University, Jeonju, South Korea
| | - Sung-Ho Kook
- Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, South Korea
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6
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Taguchi T, Lopez MJ. An overview of de novo bone generation in animal models. J Orthop Res 2021; 39:7-21. [PMID: 32910496 PMCID: PMC7820991 DOI: 10.1002/jor.24852] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 08/27/2020] [Accepted: 09/02/2020] [Indexed: 02/04/2023]
Abstract
Some of the earliest success in de novo tissue generation was in bone tissue, and advances, facilitated by the use of endogenous and exogenous progenitor cells, continue unabated. The concept of one health promotes shared discoveries among medical disciplines to overcome health challenges that afflict numerous species. Carefully selected animal models are vital to development and translation of targeted therapies that improve the health and well-being of humans and animals alike. While inherent differences among species limit direct translation of scientific knowledge between them, rapid progress in ex vivo and in vivo de novo tissue generation is propelling revolutionary innovation to reality among all musculoskeletal specialties. This review contains a comparison of bone deposition among species and descriptions of animal models of bone restoration designed to replicate a multitude of bone injuries and pathology, including impaired osteogenic capacity.
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Affiliation(s)
- Takashi Taguchi
- Laboratory for Equine and Comparative Orthopedic Research, Department of Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
| | - Mandi J. Lopez
- Laboratory for Equine and Comparative Orthopedic Research, Department of Veterinary Clinical Sciences, School of Veterinary MedicineLouisiana State UniversityBaton RougeLouisianaUSA
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7
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Zhang S, Niu Y, Yang Z, Zhang Y, Guo Q, Yang Y, Zhou X, Ding Y, Liu C. Biochanin A alleviates gingival inflammation and alveolar bone loss in rats with experimental periodontitis. Exp Ther Med 2020; 20:251. [PMID: 33178349 PMCID: PMC7654219 DOI: 10.3892/etm.2020.9381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 05/20/2020] [Indexed: 02/05/2023] Open
Abstract
Biochanin A (BA) is an organic compound produced by Trifolium pretense and Arachis hypogaea with anti-inflammatory and antioxidative effects. The aim of the current study was to evaluate the effects of BA on gingival inflammation and alveolar bone destruction in rats with experimental periodontitis. Experimental rats (n=25) were distributed equally into five groups: i) Healthy control (control) group; ii) experimental periodontitis (ligation) group; and iii) and ligation plus low, medium and high dose of BA (12.5, 25 and 50 mg/kg/day, respectively) groups. A nylon ligature was inserted around rats' maxillary molars for 14 days to trigger the experimental periodontitis. BA was intravenous injected once daily for 4 weeks. After that, interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), reactive oxygen species (ROS) and osteocalcin (OCN) levels were determined in gingival and/or serum samples using ELISA or reverse transcription-quantitative PCR. Alveolar bone volume was assessed via hematoxylin and eosin staining and micro-computed tomography. Osteoclasts were identified by tartrate-resistant acid phosphatase staining, and the level of the nuclear factor erythroid-2 related factor 2 (Nrf2) was also detected by immunohistochemical staining. BA treatment groups showed alleviated alveolar bone resorption compared with the ligation group. Moreover, BA treatment significantly inhibited IL-1β, TNF-α, ROS levels, and reduced leukocyte acid phosphatase-positive cells, as well as increased OCN and Nrf2 levels compared with the ligation group. BA had beneficial effects on experimental periodontitis of rats. BA treatment inhibited inflammation, regulated unbalanced oxidative stress response and ameliorated the alveolar bone loss.
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Affiliation(s)
- Shengdan Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yulong Niu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Zhuo Yang
- General Stomatology Clinic, Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P.R. China
| | - Yuwei Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Qiang Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yi Yang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yi Ding
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Chengcheng Liu
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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8
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Bhattarai G, Min CK, Jeon YM, Bashyal R, Poudel SB, Kook SH, Lee JC. Oral supplementation with p-coumaric acid protects mice against diabetes-associated spontaneous destruction of periodontal tissue. J Periodontal Res 2019; 54:690-701. [PMID: 31328274 DOI: 10.1111/jre.12678] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 04/09/2019] [Accepted: 06/09/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Dietary bioactive materials having anti-inflammatory and antioxidant potentials are able to inhibit diabetes-associated periodontal complications. Although numerous studies indicate that administration of p-coumaric acid (p-CA) ameliorates diabetes and diabetes-related complications, the roles of p-CA on periodontal tissue destruction in diabetic mice and the possible mechanisms therein are not completely understood. In this study, we evaluated whether supplementation with p-CA protects mice against diabetes-associated spontaneous periodontal destruction and also explored the associated mechanism therein using in vivo and in vitro experimental systems. MATERIALS AND METHODS C57BL/6 male mice were divided into sham, streptozotocin (STZ), and STZ+CA groups (n = 5/group). Sham group was intraperitoneally injected with sodium buffer, whereas other two groups were injected with the buffer containing 160 mg/kg of STZ. STZ-induced diabetic mice received oral gavage with p-CA (50 mg/kg) (STZ+CA group) or with buffer only (STZ group) daily for 6 weeks. The effect of p-CA on diabetes-associated spontaneous periodontal destruction was evaluated using μCT analysis, hematoxylin and eosin staining, tartrate-resistant acid phosphatase staining, and immunohistochemical staining methods. The efficacies of p-CA on cell proliferation, osteoblast differentiation, reactive oxygen species (ROS) accumulation, and antioxidant-related marker expression were examined using human periodontal ligament fibroblasts (hPLFs) cultured under high glucose condition. RESULTS Streptozotocin group exhibited periodontal tissue destruction along with increased inflammation, oxidative stress, and osteoclast formation, as well as with decreased osteogenesis. However, oral administration with p-CA protected mice against STZ-induced periodontal destruction by inhibiting inflammation and osteoclastic activation. STZ+CA group also showed higher expression of antioxidant and osteogenic markers in periodontal tissue than did STZ group. Treatment with high glucose concentration (30 mmol/L) impaired proliferation and osteoblast differentiation of hPLFs along with cellular ROS accumulation, whereas these impairments were almost completely disappeared by supplementation with p-CA. CONCLUSION These findings demonstrate that supplementation with p-CA inhibits diabetes-associated spontaneous destruction of periodontal tissue by enhancing anti-inflammatory, anti-osteoclastogenic, and antioxidant defense systems in STZ-treated mice.
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Affiliation(s)
- Govinda Bhattarai
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - Chang-Ki Min
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - Young-Mi Jeon
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, Korea.,Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Korea
| | - Rajendra Bashyal
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - Sher B Poudel
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - Sung-Ho Kook
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, Korea.,Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju, Korea
| | - Jeong-Chae Lee
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, Korea.,Research Institute of Clinical Medicine of Chonbuk National University, Jeonju, Korea.,Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju, Korea
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9
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Zhang Z, Gao Y, Qiao X. WITHDRAWN: Spleen tyrosine kinase (SYK) protects renal tubular epithelial cell against hypoxia injury in children with acute kidney injury. Gene 2018:S0378-1119(18)31156-9. [PMID: 30408549 DOI: 10.1016/j.gene.2018.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 03/13/2018] [Accepted: 11/03/2018] [Indexed: 11/21/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Zhiyong Zhang
- Medicine School of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Ya Gao
- Department of Pediatric Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi, China.
| | - Ximin Qiao
- Central Hospital of Xianyang, Xianyang 712000, Shaanxi, China
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10
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Kook SH, Sim HJ, Hwang JW, Baek YH, Kim CC, Lee JH, Cho ES, Lee JC. Genetic overexpression of COMP-Ang1 impairs BM microenvironment and induces senescence of BM HSCs. Biochem Biophys Res Commun 2018; 499:669-674. [PMID: 29604278 DOI: 10.1016/j.bbrc.2018.03.210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 12/27/2022]
Abstract
Supplemental Angiopoietin 1 (Ang1) exerts its therapeutic potential on microvascular regression-associated diseases, and this potential is linked with the function of hematopoietic stem cells (HSCs). However, the underlying mechanisms of the effect of enhanced angiogenesis on the modulation of HSCs are not yet defined. Here, we generated transgenic mice expressing Cartilage Oligomeric Matrix Protein (COMP)-Ang1 in keratin 14-expressing cells. The mutant animals expressed excessive angiogenic characteristics in the skin and bone marrow (BM) along with redder skin with more numerous and branched vessels compared with their wild-type (WT) littermates. The mutants displayed reduced long bone formation and osteoclast activity than did WT littermates and had fewer CD150+CD48-Lineage-Sca-1+c-Kit+ (LSK) cells in the BM. The mutants also exhibited greater senescence-associated (SA) β-gal activity, p16INK4a protein expression, and superoxide anion levels in CD150+CD48-LSK cells in the BM. Furthermore, transplantation assay revealed that the mutant-derived LSK cells were inferior to the cells derived from WT littermate in inducing competitive repopulating capacity in the recipients. Collectively, our results demonstrate that persistent and prolonged administration of COMP-Ang1 by inducible transgenic expression mediates excessive angiogenesis in the body and impairs BM microenvironment, eventually leading to senescence of BM HSCs.
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Affiliation(s)
- Sung-Ho Kook
- Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju, 54896, South Korea; Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Hyun-Jaung Sim
- Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju, 54896, South Korea; Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Jae-Won Hwang
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Young-Hyun Baek
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Chun-Chu Kim
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Jeong-Hoon Lee
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Eui-Sic Cho
- Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea.
| | - Jeong-Chae Lee
- Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju, 54896, South Korea; Cluster for Craniofacial Development and Regeneration Research, Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea.
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11
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Poudel SB, Bhattarai G, Kook SH, Shin YJ, Kwon TH, Lee SY, Lee JC. Recombinant human IGF-1 produced by transgenic plant cell suspension culture enhances new bone formation in calvarial defects. Growth Horm IGF Res 2017; 36:1-10. [PMID: 28787635 DOI: 10.1016/j.ghir.2017.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 07/20/2017] [Accepted: 07/28/2017] [Indexed: 12/16/2022]
Abstract
Transgenic plant cell suspension culture systems have been utilized extensively as convenient and efficient expression systems for the production of recombinant human growth factors. We produced insulin-like growth factor-1 using a plant suspension culture system (p-IGF-1) and explored its effect on new bone formation in calvarial defects. We also compared the bone regenerating potential of p-IGF-1 with commercial IGF-1 derived from Escherichia coli (e-IGF-1). Male C57BL/6 mice underwent calvarial defect surgery, and the defects were loaded with absorbable collagen sponge (ACS) only (ACS group) or ACS impregnated with 13μg of p-IGF-1 (p-IGF-1 group) or e-IGF-1 (e-IGF-1 group). The sham group did not receive any treatment with ACS or IGFs after surgery. Live μCT and histological analyses showed critical-sized bone defects in the sham group, whereas greater bone formation was observed in the p-IGF-1 and e-IGF-1 groups than the ACS group both 5 and 10weeks after surgery. Bone mineral density, bone volume, and bone surface values were also higher in the IGF groups than in the ACS group. Local delivery of p-IGF-1 or e-IGF-1 more greatly enhanced the expression of osteoblast-specific markers, but inhibited osteoclast formation, in newly formed bone compared with ACS control group. Specifically, p-IGF-1 treatment induced higher expression of alkaline phosphatase, osteocalcin, and osteopontin in the defect site than did e-IGF-1. Furthermore, treatment with p-IGF-1, but not e-IGF-1, increased mineralization of MC3T3-E1 cells, with the attendant upregulation of osteogenic marker genes. Collectively, our findings suggest the potential of p-IGF-1 in promoting the processes required for bone regeneration.
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Affiliation(s)
- Sher Bahadur Poudel
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences, Chonbuk National University, Jeonju 54896, South Korea
| | - Govinda Bhattarai
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences, Chonbuk National University, Jeonju 54896, South Korea
| | - Sung-Ho Kook
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences, Chonbuk National University, Jeonju 54896, South Korea; Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju 54896, South Korea
| | - Yun-Ji Shin
- Natural Bio-Materials Inc., Iksan 54631, South Korea
| | - Tae-Ho Kwon
- Natural Bio-Materials Inc., Iksan 54631, South Korea
| | - Seung-Youp Lee
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 54896, South Korea.
| | - Jeong-Chae Lee
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences, Chonbuk National University, Jeonju 54896, South Korea; Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Chonbuk National University, Jeonju 54896, South Korea.
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Bhattarai G, Poudel SB, Kook SH, Lee JC. Anti-inflammatory, anti-osteoclastic, and antioxidant activities of genistein protect against alveolar bone loss and periodontal tissue degradation in a mouse model of periodontitis. J Biomed Mater Res A 2017; 105:2510-2521. [PMID: 28509410 DOI: 10.1002/jbm.a.36109] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/19/2017] [Accepted: 05/09/2017] [Indexed: 01/16/2023]
Abstract
Genistein, a dietary polyphenol primarily found in soy products, has beneficial effects on bone. However, the effect of genistein on inflammatory periodontal destruction has not been investigated in detail. We explored whether genistein protects against lipopolysaccharide (LPS)/ligature-induced periodontitis in mice. We also examined the effect of genistein on LPS-stimulated inflammatory and oxidative stress using RAW 264.7 macrophages and human gingival fibroblasts (hGFs). The results from μCT and histological analyses revealed that intraperitoneal injection of genistein (20 mg/kg body weight) daily for three weeks inhibited LPS-mediated alveolar bone loss and periodontal tissue degradation. The administration of genistein also inhibited osteoclast formation and the expression of inflammation-related molecules in the inflamed region of mice with periodontitis. Treatment with 30-70 μM genistein significantly prevented osteoclast differentiation in receptor activator of nuclear factor κB ligand- or LPS-stimulated macrophages by suppressing the expression of osteoclast-specific molecules. The addition of genistein led to a dose-dependent inhibition of the expression of inflammation-related molecules both in LPS-stimulated macrophages and hGFs. In addition, genistein at 50 μM protected hGFs from LPS-mediated stresses such as mitochondrial impairment and cellular ROS accumulation. However, such protection was significantly diminished by combined treatment with 25 nM bafilomycin A1, a chemical autophagy inhibitor. Collectively, our results indicate that genistein protects against inflammatory periodontal damage by regulating autophagy induction and inhibiting osteoclast activation, the production of inflammation mediators, and mitochondrial oxidative damage. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2510-2521, 2017.
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Affiliation(s)
- Govinda Bhattarai
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Sher Bahadur Poudel
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
| | - Sung-Ho Kook
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
- Department of Bioactive Material Sciences, Chonbuk National University, Jeonju, 54896, South Korea
| | - Jeong-Chae Lee
- Cluster for Craniofacial Development & Regeneration Research, Institute of Oral Biosciences (BK21 program) and School of Dentistry, Chonbuk National University, Jeonju, 54896, South Korea
- Department of Bioactive Material Sciences, Chonbuk National University, Jeonju, 54896, South Korea
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