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Zhang M, Du P, Wan J, Chen Y, Chen X, Zhang Y. Effects of sodium dehydroacetate on broiler chicken bones. Poult Sci 2024; 103:103834. [PMID: 38805999 PMCID: PMC11150974 DOI: 10.1016/j.psj.2024.103834] [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: 02/28/2024] [Revised: 04/22/2024] [Accepted: 05/03/2024] [Indexed: 05/30/2024] Open
Abstract
Sodium dehydroacetate (DHA-Na) is a fungicidal preservative widely used in food and animal feed. DHA-Na can induce coagulation disorders in rats and poultry by inhibiting carboxylation of vitamin K-dependent proteins; it can also impair bone development in zebrafish. However, the effects of DHA-Na on broiler chicken bones remain unknown. Here, we assessed whether DHA-Na impairs bone development in broiler chickens. We administered Suji yellow chickens with 200 to 800 mg/kg DHA-Na, 2 mg/kg vitamin K, or both for 2 mo. Bone metabolite-related serum indicators, tissue micromorphology, and relevant protein expression were monitored during the treatment period. We also assessed primary chicken osteoblast activity, differentiation, and bone metabolite-related proteins after treatment with DHA-Na, vitamin K, or both. The results demonstrated that DHA-Na reduced bone index values and serum and bone osteoblast differentiation marker levels but blocked bone vitamin K cycle. DHA-Na also increased serum osteoclast differentiation marker levels, as well as the bone ratio of receptor activator of nuclear factor kappa-Β ligand to osteoprotegerin ratio. Moreover, DHA-Na reduced bone trabecular number, thickness, and area and increased trabecular separation considerably. In general, compared with the control group, the DHA-Na group demonstrated impairments in osteoblast activity and differentiation, as well as in the vitamin K cycle. By contrast, vitamin K supplementation led to considerable attenuation of the DHA-Na-induced decrease in osteogenic marker levels, along with a considerable increase in serum bone absorption marker levels and restoration of DHA-Na-induced bone microstructure damage. Vitamin K also attenuated DHA-Na-induced impairment in osteoclasts. In conclusion, the results indicated that in broiler chickens, DHA-Na supplementation can damage bones by inhibiting osteoblast function and increasing osteoclast activity; this damage can be prevented through vitamin K supplementation.
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Affiliation(s)
- Meng Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Pengfei Du
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Jin Wan
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Yimeng Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Xin Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Yumei Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu 225009, China.
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2
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Martiniakova M, Biro R, Kovacova V, Babikova M, Zemanova N, Mondockova V, Omelka R. Current knowledge of bone-derived factor osteocalcin: its role in the management and treatment of diabetes mellitus, osteoporosis, osteopetrosis and inflammatory joint diseases. J Mol Med (Berl) 2024; 102:435-452. [PMID: 38363329 PMCID: PMC10963459 DOI: 10.1007/s00109-024-02418-8] [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: 08/30/2023] [Revised: 12/21/2023] [Accepted: 01/10/2024] [Indexed: 02/17/2024]
Abstract
Osteocalcin (OC) is the most abundant non-collagenous and osteoblast-secreted protein in bone. It consists of two forms such as carboxylated OC (cOC) and undercarboxylated OC (ucOC). While cOC promotes bone mineralization and increases bone strength, ucOC is regarded an endocrinologically active form that may have several functions in multiple end organs and tissues. Total OC (tOC) includes both of these forms (cOC and ucOC) and is considered a marker of bone turnover in clinical settings. Most of the data on OC is limited to preclinical studies and therefore may not accurately reflect the situation in clinical conditions. For the stated reason, the aim of this review was not only to summarize current knowledge of all forms of OC and characterize its role in diabetes mellitus, osteoporosis, osteopetrosis, inflammatory joint diseases, but also to provide new interpretations of its involvement in the management and treatment of aforementioned diseases. In this context, special emphasis was placed on available clinical trials. Significantly lower levels of tOC and ucOC could be associated with the risk of type 2 diabetes mellitus. On the contrary, tOC level does not seem to be a good indicator of high bone turnover status in postmenopausal osteoporosis, osteoarthritis and rheumatoid arthritis. The associations between several pharmacological drugs used to treat all disorders mentioned above and OC levels have also been provided. From this perspective, OC may serve as a medium through which certain medications can influence glucose metabolism, body weight, adiponectin secretion, and synovial inflammation.
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Affiliation(s)
- Monika Martiniakova
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Roman Biro
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Veronika Kovacova
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Martina Babikova
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Nina Zemanova
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Vladimira Mondockova
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia
| | - Radoslav Omelka
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 01, Nitra, Slovakia.
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Li S, Cui Y, Liu H, Tian Y, Fan Y, Wang G, Wang J, Wu D, Wang Y. Dual-functional 3D-printed porous bioactive scaffold enhanced bone repair by promoting osteogenesis and angiogenesis. Mater Today Bio 2024; 24:100943. [PMID: 38269054 PMCID: PMC10806334 DOI: 10.1016/j.mtbio.2024.100943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 01/26/2024] Open
Abstract
The treatment of bone defects is a difficult problem in orthopedics. The excessive destruction of local bone tissue at defect sites destroys blood supply and renders bone regeneration insufficient, which further leads to delayed union or even nonunion. To solve this problem, in this study, we incorporated icariin into alginate/mineralized collagen (AMC) hydrogel and then placed the drug-loaded hydrogel into the pores of a 3D-printed porous titanium alloy (AMCI/PTi) scaffold to prepare a bioactive scaffold with the dual functions of promoting angiogenesis and bone regeneration. The experimental results showed that the ACMI/PTi scaffold had suitable mechanical properties, sustained drug release function, and excellent biocompatibility. The released icariin and mineralized collagen (MC) synergistically promoted angiogenesis and osteogenic differentiation in vitro. After implantation into a rabbit radius defect, the composite scaffold showed a satisfactory effect in promoting bone repair. Therefore, this composite dual-functional scaffold could meet the requirements of bone defect treatment and provide a promising strategy for the repair of large segmental bone defects in clinic.
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Affiliation(s)
| | | | - He Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Yuhang Tian
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Yi Fan
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Gan Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Jingwei Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Dankai Wu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Yanbing Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, 130041, China
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Zhao Z, Yan K, Guan Q, Guo Q, Zhao C. Mechanism and physical activities in bone-skeletal muscle crosstalk. Front Endocrinol (Lausanne) 2024; 14:1287972. [PMID: 38239981 PMCID: PMC10795164 DOI: 10.3389/fendo.2023.1287972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 12/05/2023] [Indexed: 01/22/2024] Open
Abstract
Bone and skeletal muscle work in coordination to maintain the function of the musculoskeletal system, in which skeletal muscle contraction drives the movement of the bone lever system while bone provides insert sites for skeletal muscle through the bone-muscle junction. Existing evidence suggests that factors secreted by skeletal muscle and bone mediate the interaction between the two tissues. Herein, we focused on the relationship between skeletal muscle and bone and the underlying mechanism of the interaction. Exercise can promote bone strength and secrete osteocalcin and insulin-like growth factor I into the blood, thus improving muscle quality. In addition, exercise can also promote myostatin, interleukin-6, Irisin, and apelin in muscles to enter the blood so that they can act on bones to maintain the balance between bone absorption and bone formation. There is a special regulatory axis interleukin-6/osteocalcin between myokines and osteokines, which is mainly influenced by exercise. Therefore, we pay attention to the important factors in the bone-muscle intersection that are affected by exercise, which were found or their functions were expanded, which strengthened the connection between organs of the whole body, highlighting the importance of exercise and contributing to the diagnosis, prevention, and treatment of osteoporosis and sarcopenia in the clinic.
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Affiliation(s)
- Zhonghan Zhao
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Kai Yan
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Qiao Guan
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Qiang Guo
- Department of Orthopaedics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Can Zhao
- College of Athletic Performance, Shanghai University of Sport, Shanghai, China
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Hannani MT, Thudium CS, Karsdal MA, Ladel C, Mobasheri A, Uebelhoer M, Larkin J, Bacardit J, Struglics A, Bay-Jensen AC. From biochemical markers to molecular endotypes of osteoarthritis: a review on validated biomarkers. Expert Rev Mol Diagn 2024; 24:23-38. [PMID: 38353446 DOI: 10.1080/14737159.2024.2315282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/02/2024] [Indexed: 02/22/2024]
Abstract
INTRODUCTION Osteoarthritis (OA) affects over 500 million people worldwide. OA patients are symptomatically treated, and current therapies exhibit marginal efficacy and frequently carry safety-risks associated with chronic use. No disease-modifying therapies have been approved to date leaving surgical joint replacement as a last resort. To enable effective patient care and successful drug development there is an urgent need to uncover the pathobiological drivers of OA and how these translate into disease endotypes. Endotypes provide a more precise and mechanistic definition of disease subgroups than observable phenotypes, and a panel of tissue- and pathology-specific biochemical markers may uncover treatable endotypes of OA. AREAS COVERED We have searched PubMed for full-text articles written in English to provide an in-depth narrative review of a panel of validated biochemical markers utilized for endotyping of OA and their association to key OA pathologies. EXPERT OPINION As utilized in IMI-APPROACH and validated in OAI-FNIH, a panel of biochemical markers may uncover disease subgroups and facilitate the enrichment of treatable molecular endotypes for recruitment in therapeutic clinical trials. Understanding the link between biochemical markers and patient-reported outcomes and treatable endotypes that may respond to given therapies will pave the way for new drug development in OA.
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Affiliation(s)
- Monica T Hannani
- ImmunoScience, Nordic Bioscience A/S, Herlev, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | | | | | - Ali Mobasheri
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- World Health Organization Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, Université de Liège, Liège, Belgium
| | | | - Jonathan Larkin
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- SynOA Therapeutics, Philadelphia, PA, USA
| | - Jaume Bacardit
- School of Computing, Newcastle University, Newcastle upon Tyne, UK
| | - André Struglics
- Department of Clinical Sciences, Orthopaedics, Lund University, Lund, Sweden
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Wan S, Xie J, Liang Y, Yu X. Pathological roles of bone marrow adipocyte-derived monocyte chemotactic protein-1 in type 2 diabetic mice. Cell Death Discov 2023; 9:412. [PMID: 37957155 PMCID: PMC10643445 DOI: 10.1038/s41420-023-01708-3] [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: 06/16/2023] [Revised: 10/23/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) has become a prevalent public health concern, with beta-cell dysfunction involved in its pathogenesis. Bone marrow adipose tissue (BMAT) increases in both the quantity and area in individuals with T2DM along with heightened monocyte chemotactic protein-1 (MCP-1) secretion. This study aims to investigate the influence and underlying mechanisms of MCP-1 originating from bone marrow adipocytes (BMAs) on systemic glucose homeostasis in T2DM. Initially, a substantial decrease in the proliferation and glucose-stimulated insulin secretion (GSIS) of islet cells was observed. Moreover, a comparative analysis between the control (Ctrl) group and db/db mice revealed significant alterations in the gene expression profiles of whole bone marrow cells, with a noteworthy upregulation of Mcp-1. And the primary enriched pathways included chemokine signaling pathway and AGE-RAGE signaling pathway in diabetic complications. In addition, the level of MCP-1 was distinctly elevated in BMA-derived conditional media (CM), leading to a substantial inhibition of proliferation, GSIS and the protein level of phosphorylated Akt (p-Akt) in Min6 cells. After blocking MCP-1 pathway, we observed a restoration of p-Akt and the proliferation of islet cells, resulting in a marked improvement in disordered glucose homeostasis. In summary, there is an accumulation of BMAs in T2DM, which secrete excessive MCP-1, exacerbating the abnormal accumulation of BMAs in the bone marrow cavity through paracrine signaling. The upregulated MCP-1, in turn, worsens glucose metabolism disorder by inhibiting the proliferation and insulin secretion of islet cells through an endocrine pathway. Inhibiting MCP-1 signaling can partially restore the proliferation and insulin secretion of islet cells, ultimately ameliorating glucose metabolism disorder. It's worth noting that to delve deeper into the impact of MCP-1 derived from BMAs on islet cells and its potential mechanisms, it is imperative to develop genetically engineered mice with conditional Mcp-1 knockout from BMAs.
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Affiliation(s)
- Shan Wan
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jinwei Xie
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Liang
- Core Facilities of West China Hospital, Sichuan University, Chengdu, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China.
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7
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Zhang Q, Qu X, Liang C, Li H, Du S, Wang C, Xie Y, Zheng Y, Wang L. Effect of oligonucleotide MT01 delivered by N-isopropylacrylamide modified polyethyleneimine for bone regeneration. Front Bioeng Biotechnol 2023; 11:1204571. [PMID: 37404683 PMCID: PMC10315576 DOI: 10.3389/fbioe.2023.1204571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/09/2023] [Indexed: 07/06/2023] Open
Abstract
Objective: This study aimed to investigate the regulatory effect of N-isopropylacrylamide-modified polyethyleneimine (PEN)-delivered oligodeoxynucleotide (ODN) MT01 on bone regeneration in vitro and in vivo. Methods: A polyethylenimine (PEI) derivative, PEN, was constructed through Michael addition and employed as a carrier for ODN MT01 transfection. PEN/MT01 nanocomposites were characterized using agarose gel retardation assay, size distribution, zeta potential and transmission electron microscopy. The Cell Counting Kit-8 (CCK-8) assay was used to detect the effect of PEN on cell viability. Alkaline phosphatase (ALP) staining was used to detect the osteogenic differentiation ability of PEN/MT01 nanocomposite. Real-time quantitative PCR (q RT-PCR) and enzyme-linked immunosorbent assay (ELISA) were used to detect the regulatory effects of PEN/MT01 nanocomposite on osteogenic differentiation gene expression. Rat model was observed using the skull defect method and verified using micro-computed tomography (CT), serum biochemical indices, hematoxylin and eosin (H&E) staining and Immunohistochemistry (IHC). Results: PEN had good biological properties and could deliver MT01 well to achieve efficient transmission of MT01. PEN/MT01 nanocomposites were effectively transfected into MC3T3-E1 cells at a ratio of 6.0. CCK-8 assay displayed that PEN had no cytotoxicity to MC3T3-E1 cells. Additionally, PEN/MT01 nanocomposites could promote the expression of osteogenic genes. In vivo results revealed that PEN/MT01 nanocomposites could promote bone regeneration more effectively than the other groups. Conclusion: PEN has good biocompatibility and low toxicity, which is a good carrier for ODN MT01. PEN-delivered MT01 can be potentially employed as a useful approach to achieving bone regeneration.
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Affiliation(s)
- Qian Zhang
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun, China
| | - Xingyuan Qu
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun, China
| | - Chen Liang
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun, China
| | - Hongyan Li
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Siyu Du
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun, China
| | - Chang Wang
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun, China
| | - Yuandong Xie
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Jilin University, Changchun, China
| | - Yi Zheng
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Lei Wang
- Department of Periodontics, Hospital of Stomatology, Jilin University, Changchun, China
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Lacombe J, Guo K, Bonneau J, Faubert D, Gioanni F, Vivoli A, Muir SM, Hezzaz S, Poitout V, Ferron M. Vitamin K-dependent carboxylation regulates Ca 2+ flux and adaptation to metabolic stress in β cells. Cell Rep 2023; 42:112500. [PMID: 37171959 DOI: 10.1016/j.celrep.2023.112500] [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: 05/08/2022] [Revised: 02/24/2023] [Accepted: 04/26/2023] [Indexed: 05/14/2023] Open
Abstract
Vitamin K is a micronutrient necessary for γ-carboxylation of glutamic acids. This post-translational modification occurs in the endoplasmic reticulum (ER) and affects secreted proteins. Recent clinical studies implicate vitamin K in the pathophysiology of diabetes, but the underlying molecular mechanism remains unknown. Here, we show that mouse β cells lacking γ-carboxylation fail to adapt their insulin secretion in the context of age-related insulin resistance or diet-induced β cell stress. In human islets, γ-carboxylase expression positively correlates with improved insulin secretion in response to glucose. We identify endoplasmic reticulum Gla protein (ERGP) as a γ-carboxylated ER-resident Ca2+-binding protein expressed in β cells. Mechanistically, γ-carboxylation of ERGP protects cells against Ca2+ overfilling by diminishing STIM1 and Orai1 interaction and restraining store-operated Ca2+ entry. These results reveal a critical role of vitamin K-dependent carboxylation in regulation of Ca2+ flux in β cells and in their capacity to adapt to metabolic stress.
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Affiliation(s)
- Julie Lacombe
- Molecular Physiology Research Unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada.
| | - Kevin Guo
- Molecular Physiology Research Unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada; Division of Experimental Medicine, McGill University, Montréal, QC H4A 3J1, Canada
| | - Jessica Bonneau
- Molecular Physiology Research Unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada; Programme de Biologie Moléculaire, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Denis Faubert
- Mass Spectrometry and Proteomics Platform, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
| | - Florian Gioanni
- Molecular Physiology Research Unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
| | - Alexis Vivoli
- Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
| | - Sarah M Muir
- Molecular Physiology Research Unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
| | - Soraya Hezzaz
- Molecular Physiology Research Unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
| | - Vincent Poitout
- Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; Département de Médecine, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Mathieu Ferron
- Molecular Physiology Research Unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada; Division of Experimental Medicine, McGill University, Montréal, QC H4A 3J1, Canada; Programme de Biologie Moléculaire, Université de Montréal, Montréal, QC H3T 1J4, Canada; Département de Médecine, Université de Montréal, Montréal, QC H3T 1J4, Canada.
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Luo Z, Lu Y, Shi Y, Jiang M, Shan X, Li X, Zhang J, Qin B, Liu X, Guo X, Huang J, Liu Y, Wang S, Li Q, Luo L, You J. Neutrophil hitchhiking for drug delivery to the bone marrow. NATURE NANOTECHNOLOGY 2023:10.1038/s41565-023-01374-7. [PMID: 37081080 DOI: 10.1038/s41565-023-01374-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 03/14/2023] [Indexed: 05/03/2023]
Abstract
Pharmaceuticals have been developed for the treatment of a wide range of bone diseases and disorders, but suffer from problematic delivery to the bone marrow. Neutrophils are naturally trafficked to the bone marrow and can cross the bone marrow-blood barrier. Here we report the use of neutrophils for the targeted delivery of free drugs and drug nanoparticles to the bone marrow. We demonstrate how drug-loaded poly(lactic-co-glycolic acid) nanoparticles are taken up by neutrophils and are then transported across the bone marrow-blood barrier to boost drug concentrations in the bone marrow. We demonstrate application of this principle to two models. In a bone metastasis cancer model, neutrophil delivery is shown to deliver cabazitaxel and significantly inhibit tumour growth. In an induced osteoporosis model, neutrophil delivery of teriparatide is shown to significantly increase bone mineral density and alleviate osteoporosis indicators.
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Affiliation(s)
- Zhenyu Luo
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Yichao Lu
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Yingying Shi
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Mengshi Jiang
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Xinyu Shan
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Xiang Li
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Junlei Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Bing Qin
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Xu Liu
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Xuemeng Guo
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Jiaxin Huang
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Yu Liu
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Sijie Wang
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China
| | - Qingpo Li
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China.
| | - Lihua Luo
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China.
| | - Jian You
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, P. R. China.
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10
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Shikonin promotes rat periodontal bone defect repair and osteogenic differentiation of BMSCs by p38 MAPK pathway. Odontology 2022:10.1007/s10266-022-00774-w. [DOI: 10.1007/s10266-022-00774-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
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11
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Xu M, Li Y, Feng X, Zheng W, Zhao Z, Li Y. Parathyroid hormone promotes maxillary expansion and reduces relapse in the repeated activation maxillary expansion rat model by regulating Wnt/β-catenin pathway. Prog Orthod 2022; 23:1. [PMID: 34978631 PMCID: PMC8724514 DOI: 10.1186/s40510-021-00394-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 11/26/2021] [Indexed: 02/08/2023] Open
Abstract
Background Constricted maxillary bone is a common skeletal deformity, which may lead to crowding and posterior crossbite. Mid-palatal suture expansion is often used to increase the maxillary width, but its skeletal effects are limited and tend to relapse, even with prolonged retention. We hypothesized that parathyroid hormone (PTH) may reduce the relapse of maxillary expansion. Methods We established a novel rat maxillary expansion model using palatal tubes with an insertable “W”-shaped spring which can be repeatedly activated. A total of 32 male healthy Wistar rats were randomly divided into six groups: the control group, the PTH group, the expansion group, the expansion + PTH group, the expansion + relapse group and the expansion + PTH + relapse group. All animals in the first 4 groups were killed after 10 days and the 2 relapse groups were killed after 15 days. The maxillary arch widths and histological staining were used to assess the expansion and relapse effects. The immunohistochemical staining, micro-CT, RT-qPCR and Western blot were used to evaluate the bone remodeling during expansion. Results The suture width was increased by the expansion device, and the repeated activation maxillary expansion rat model showed better expansion effects than the conventional model. PTH significantly promoted the expansion width and reduced the relapse ratio. Meanwhile, in the expansion + PTH group, histological and immunohistochemical staining showed that osteoblasts, osteoclasts, new cartilage and osteoid were significantly increased, micro-CT showed increased bone mass, and PCR and Western blot results confirmed up-regulation of RANKL, β-catenin, type II collagen and OCN. Conclusion The novel repeated activation maxillary expansion rat model has better effects than the conventional model. PTH enhances the maxillary expansion and reduces its relapse by regulating Wnt/β-catenin and RANKL pathways. PTH administration may serve as an adjunctive therapy in addition to mechanical expansion for treatment of maxillary constriction.
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Affiliation(s)
- Mengting Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, #14, 3rd Section, South Renmin Road, Chengdu, 610041, People's Republic of China
| | - Yuan Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, #14, 3rd Section, South Renmin Road, Chengdu, 610041, People's Republic of China
| | - Xiaoxia Feng
- The Affiliated Stomatology Hospital, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Wei Zheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, #14, 3rd Section, South Renmin Road, Chengdu, 610041, People's Republic of China.
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, #14, 3rd Section, South Renmin Road, Chengdu, 610041, People's Republic of China.
| | - Yu Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, #14, 3rd Section, South Renmin Road, Chengdu, 610041, People's Republic of China
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12
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Abstract
SIRT3 is an NAD+-dependent deacetylase in the mitochondria with an extensive ability to regulate mitochondrial morphology and function. It has been reported that SIRT3 participates in the occurrence and development of many aging-related diseases. Osteoporosis is a common aging-related disease characterized by decreased bone mass and fragility fractures, which has caused a huge burden on society. Current research shows that SIRT3 is involved in the physiological processes of senescence of bone marrow mesenchymal stem cells (BMSCs), differentiation of BMSCs and osteoclasts. However, the specific effects and mechanisms of SIRT3 in osteoporosis are not clear. In the current review, we elaborated on the physiological functions of SIRT3, the cell types involved in bone remodeling, and the role of SIRT3 in osteoporosis. Furthermore, it also provided a theoretical basis for SIRT3 as a therapeutic target for osteoporosis.
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Affiliation(s)
- Siwang Hu
- The Orthopaedic Center, Wenling First People’s Hospital (The Affiliated Wenling Hospital of Wenzhou Medical University), Wenling, China
| | - Shuangshuang Wang
- Department of Cardiology, Wenling First People’s Hospital (The Affiliated Wenling Hospital of Wenzhou Medical University), Wenling, China
- *Correspondence: Shuangshuang Wang,
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13
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Berger JM, Karsenty G. Osteocalcin and the Physiology of Danger. FEBS Lett 2021; 596:665-680. [PMID: 34913486 PMCID: PMC9020278 DOI: 10.1002/1873-3468.14259] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 12/02/2022]
Abstract
Bone biology has long been driven by the question as to what molecules affect cell differentiation or the functions of bone. Exploring this issue has been an extraordinarily powerful way to improve our knowledge of bone development and physiology. More recently, a second question has emerged: does bone have other functions besides making bone? Addressing this conundrum revealed that the bone-derived hormone osteocalcin affects a surprisingly large number of organs and physiological processes, including acute stress response. This review will focus on this emerging aspect of bone biology taking osteocalcin as a case study and will show how classical and endocrine functions of bone help to define a new functional identity for this tissue.
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Affiliation(s)
- Julian Meyer Berger
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, NY, 10032, USA
| | - Gerard Karsenty
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University, NY, 10032, USA
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14
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Song L, Huang Y, Long J, Li Y, Pan Z, Fang F, Long Y, Huang C, Qi N, Guo Y, Xia H, Jiang Y. The Role of Osteocalcin in Placental Function in Gestational Diabetes Mellitus. Reprod Biol 2021; 21:100566. [PMID: 34626941 DOI: 10.1016/j.repbio.2021.100566] [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: 06/29/2021] [Revised: 09/17/2021] [Accepted: 09/25/2021] [Indexed: 10/20/2022]
Abstract
Evidence for the role of osteocalcin in glucose metabolism is increasing. The aim of this study was to examine the associations between osteocalcin and gestational diabetes mellitus. Thirteen discovery study subjects and 76 reduplication study subjects were recruited from the Maternal and Child Health Hospital Guangxi Zhuang Autonomous Region from May 2018 to August 2018. Total osteocalcin and biochemical indices of maternal serum and umbilical vein serum were analyzed. Placental tissue samples were used for transcriptome sequencing. For the discovery study subjects, the total osteocalcin concentration in umbilical vein serum was significantly higher than that in maternal serum and umbilical artery serum (55.32 ng/mL ± 17.37 vs. 12.06 ng/mL ± 5.42 [P < 0.001] vs. 38.31 ng/mL ± 11.52 [P < 0.01]), suggesting that trophoblasts may synthesize osteocalcin. In a reduplication subject study, the gestational diabetes mellitus group had lower umbilical vein serum total osteocalcin (51.46 ng/mL ± 24.29 vs. 67.00 ng/mL ± 25.33, P = 0.008), lower adiponectin (1099.72 μg/L ± 102.65 vs. 1235.85 μg/L ± 94.63, P < 0.001). Spearman's correlation analysis showed that umbilical vein serum total osteocalcin levels were closely correlated with leptin (r = -0.456, P = 0.007). A coexpression model of the placental RNA sequence was constructed. Two modules were correlated with osteocalcin, and the Gene ontology pathways of these modules were rich in glucose and lipid metabolism. In conclusion, the placenta may synthesize osteocalcin by itself, and a lower osteocalcin level in umbilical vein serum is associated with gestational diabetes mellitus.
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Affiliation(s)
- Liang Song
- Department of Obstetrics, The Maternity Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Yiming Huang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, 530021, China; Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Junqing Long
- Department of Obstetrics, The Maternity Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Yuanfan Li
- Department of Obstetrics, The Maternity Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Zongqin Pan
- Department of Obstetrics, The Maternity Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Fang Fang
- Department of Obstetrics, The Maternity Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China
| | - Yu Long
- The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Cheng Huang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Nana Qi
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Yajie Guo
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Hongwei Xia
- Department of Obstetrics, The Maternity Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, China.
| | - Yonghua Jiang
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, 530021, China; Guangxi Key Laboratory of Genomic and Personalized Medicine, Nanning, Guangxi, 530021, China; Guangxi Collaborative Innovation Center for Genomic and Personalized Medicine, Nanning, Guangxi, 530021, China.
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15
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Plantz MA, Minardi S, Lyons JG, Greene AC, Ellenbogen DJ, Hallman M, Yamaguchi JT, Jeong S, Yun C, Jakus AE, Blank KR, Havey RM, Muriuki M, Patwardhan AG, Shah RN, Hsu WK, Stock SR, Hsu EL. Osteoinductivity and biomechanical assessment of a 3D printed demineralized bone matrix-ceramic composite in a rat spine fusion model. Acta Biomater 2021; 127:146-158. [PMID: 33831576 DOI: 10.1016/j.actbio.2021.03.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/09/2021] [Accepted: 03/25/2021] [Indexed: 12/11/2022]
Abstract
We recently developed a recombinant growth factor-free bone regenerative scaffold composed of stoichiometric hydroxyapatite (HA) ceramic particles and human demineralized bone matrix (DBM) particles (HA-DBM). Here, we performed the first pre-clinical comparative evaluation of HA-DBM relative to the industry standard and established positive control, recombinant human bone morphogenetic protein-2 (rhBMP-2), using a rat posterolateral spinal fusion model (PLF). Female Sprague-Dawley rats underwent bilateral L4-L5 PLF with implantation of the HA-DBM scaffold or rhBMP-2. Fusion was evaluated using radiography and blinded manual palpation, while biomechanical testing quantified the segmental flexion-extension range-of-motion (ROM) and stiffness of the fused segments at 8-weeks postoperatively. For mechanistic studies, pro-osteogenic gene and protein expression at 2-days and 1-, 2-, and 8-weeks postoperatively was assessed with another cohort. Unilateral fusion rates did not differ between the HA-DBM (93%) and rhBMP-2 (100%) groups; however, fusion scores were higher with rhBMP-2 (p = 0.008). Both treatments resulted in significantly reduced segmental ROM (p < 0.001) and greater stiffness (p = 0.009) when compared with non-operated controls; however, the degree of stabilization was significantly higher with rhBMP-2 treatment relative to the HA-DBM scaffold. In the mechanistic studies, PLGA and HA scaffolds were used as negative controls. Both rhBMP-2 and HA-DBM treatments resulted in significant elevations of several osteogenesis-associated genes, including Runx2, Osx, and Alp. The rhBMP-2 treatment led to significantly greater early, mid, and late osteogenic markers, which may be the mechanism in which early clinical complications are seen. The HA-DBM scaffold also induced osteogenic gene expression, but primarily at the 2-week postoperative timepoint. Overall, our findings show promise for this 3D-printed composite as a recombinant growth factor-free bone graft substitute for spinal fusion. STATEMENT OF SIGNIFICANCE: Despite current developments in bone graft technology, there remains a significant void in adequate materials for bone regeneration in clinical applications. Two of the most efficacious bone graft options are the gold-standard iliac crest bone graft and recombinant human-derived bone morphogenetic protein-2 (rhBMP-2), available commercially as Infuse™. Although efficacious, autologous graft is associated with donor-site morbidity, and Infuse™ has known side effects related to its substantial host inflammatory response, possibly associated with a immediate, robust osteoinductive response. Hence, there is a need for a bone graft substitute that provides adequate osteogenesis without associated adverse events. This study represents a significant step in the design of off-the-shelf growth factor-free devices for spine fusion.
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16
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Abstract
The kexin-like proprotein convertases perform the initial proteolytic cleavages that ultimately generate a variety of different mature peptide and proteins, ranging from brain neuropeptides to endocrine peptide hormones, to structural proteins, among others. In this review, we present a general introduction to proprotein convertase structure and biochemistry, followed by a comprehensive discussion of each member of the kexin-like subfamily of proprotein convertases. We summarize current knowledge of human proprotein convertase insufficiency syndromes, including genome-wide analyses of convertase polymorphisms, and compare these to convertase null and mutant mouse models. These mouse models have illuminated our understanding of the roles specific convertases play in human disease and have led to the identification of convertase-specific substrates; for example, the identification of procorin as a specific PACE4 substrate in the heart. We also discuss the limitations of mouse null models in interpreting human disease, such as differential precursor cleavage due to species-specific sequence differences, and the challenges presented by functional redundancy among convertases in attempting to assign specific cleavages and/or physiological roles. However, in most cases, knockout mouse models have added substantively both to our knowledge of diseases caused by human proprotein convertase insufficiency and to our appreciation of their normal physiological roles, as clearly seen in the case of the furin, proprotein convertase 1/3, and proprotein convertase 5/6 mouse models. The creation of more sophisticated mouse models with tissue- or temporally-restricted expression of specific convertases will improve our understanding of human proprotein convertase insufficiency and potentially provide support for the emerging concept of therapeutic inhibition of convertases.
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Affiliation(s)
- Manita Shakya
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Iris Lindberg
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
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17
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Zhou B, Gao S. Pan-Cancer Analysis of FURIN as a Potential Prognostic and Immunological Biomarker. Front Mol Biosci 2021; 8:648402. [PMID: 33968987 PMCID: PMC8100462 DOI: 10.3389/fmolb.2021.648402] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/30/2021] [Indexed: 12/12/2022] Open
Abstract
Background Furin is a calcium-dependent protease that processes various precursor proteins through diverse secretory pathways. The deregulation of FURIN correlated with the prognosis of patients in numerous diseases. However, the role of FURIN in human pan-cancer is still largely unknown. Methods Multiple bioinformatic methods were employed to comprehensively analyze the correlation of FURIN expression with prognosis, mismatch repair (MMR), microsatellite instability (MSI), tumor mutational burden (TMB), DNA methylation, tumor immune infiltration, and common immune checkpoint inhibitors (ICIs) from the public database, and aim to evaluate the potential prognostic value of FURIN across cancers. Results FURIN was aberrantly expressed and was strongly correlated with MMR, MSI, TMB, and DNA methylation in multiple types of cancer. Moreover, survival analysis across cancers revealed that FURIN expression was correlated with overall survival (OS) in four cancers, disease-specific survival (DSS) in five cancers, progression-free interval (PFI) in seven cancers, and disease-free interval (DFI) in two cancers. Also, FURIN expression was related to immune cell infiltration in 6 cancers and ImmuneScore/StromalScore in 10 cancers, respectively. In addition, FURIN expression also showed strong association between expression levels and immune checkpoint markers in three cancers. Conclusion FURIN can serve as a significant prognostic biomarker and correlate with tumor immunity in human pan-cancer.
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Affiliation(s)
- Bolun Zhou
- Thoracic Surgery Department, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shugeng Gao
- Thoracic Surgery Department, National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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18
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Wang H, Li J, Xu Z, Wu F, Zhang H, Yang C, Chen J, Ding B, Sui X, Guo Z, Li Y, Dai Z. Undercarboxylated osteocalcin inhibits the early differentiation of osteoclast mediated by Gprc6a. PeerJ 2021; 9:e10898. [PMID: 33717684 PMCID: PMC7934677 DOI: 10.7717/peerj.10898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 01/13/2021] [Indexed: 11/20/2022] Open
Abstract
Osteocalcin (OCN) was the most abundant noncollagen protein and considered as an endocrine factor. However, the functions of Undercarboxylated osteocalcin (ucOCN) on osteoclast and bone resorption are not well understood. In the present study, preosteoclast RAW264.7 cells and bone marrow mononuclear cells (BMMs) were treated with ucOCN purified from prokaryotic bacteria. Our results showed that ucOCN attenuated the proliferation of RAW264.7 cells with a concentration dependant manner by MTS assay. Scrape wounding assay revealed the decreased motility of RAW264.7 cells after ucOCN treatment. RT-qPCR results manifested the inhibitory effects of ucOCN on the expression of osteoclastic marker genes in RAW264.7 cells during inducing differentiation of RANKL. It was also observed that ucOCN inhibited the formation of multinucleated cells from RAW264.7 cells and BMMs detected by TRAP staining. The number and area of bone resorb pits were also decreased after treatment with ucOCN during their osteoclast induction by toluidine blue staining. The formation and integrity of the osteoclast actin ring were impaired by ucOCN by immunofluorescent staining. Time dependant treatment of ucOCN during osteoclastic induction demonstrated the inhibitory effects mainly occurred at the early stage of osteoclastogenesis. Signaling analysis of luciferase activity of the CRE or SRE reporter and ERK1/2 phosphorylation showed the selective inhibitor or siRNA of Gprc6a (a presumptive ucOCN receptor) could attenuate the promotion of ucOCN on CRE-luciferase activity. Taken together, we provided the first evidence that ucOCN had negative effects on the early differentiation and bone resorption of osteoclasts via Gprc6a.
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Affiliation(s)
- Hailong Wang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Jinqiao Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China.,Space Engineering University, Beijing, China
| | - Zihan Xu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Feng Wu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Hongyu Zhang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Chao Yang
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Jian Chen
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China.,Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Bai Ding
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Xiukun Sui
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Zhifeng Guo
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
| | - Zhongquan Dai
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing, China
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19
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Leurs N, Martinand-Mari C, Ventéo S, Haitina T, Debiais-Thibaud M. Evolution of Matrix Gla and Bone Gla Protein Genes in Jawed Vertebrates. Front Genet 2021; 12:620659. [PMID: 33790944 PMCID: PMC8006282 DOI: 10.3389/fgene.2021.620659] [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: 10/23/2020] [Accepted: 02/08/2021] [Indexed: 01/05/2023] Open
Abstract
Matrix Gla protein (Mgp) and bone Gla protein (Bgp) are vitamin-K dependent proteins that bind calcium in their γ-carboxylated versions in mammals. They are recognized as positive (Bgp) or negative (Mgp and Bgp) regulators of biomineralization in a number of tissues, including skeletal tissues of bony vertebrates. The Mgp/Bgp gene family is poorly known in cartilaginous fishes, which precludes the understanding of the evolution of the biomineralization toolkit at the emergence of jawed vertebrates. Here we took advantage of recently released genomic and transcriptomic data in cartilaginous fishes and described the genomic loci and gene expression patterns of the Mgp/Bgp gene family. We identified three genes, Mgp1, Mgp2, and Bgp, in cartilaginous fishes instead of the single previously reported Mgp gene. We describe their genomic loci, resulting in a dynamic evolutionary scenario for this gene family including several events of local (tandem) duplications, but also of translocation events, along jawed vertebrate evolution. We describe the expression patterns of Mgp1, Mgp2, and Bgp in embryonic stages covering organogenesis in the small-spotted catshark Scyliorhinus canicula and present a comparative analysis with Mgp/Bgp family members previously described in bony vertebrates, highlighting ancestral features such as early embryonic, soft tissues, and neuronal expressions, but also derived features of cartilaginous fishes such as expression in fin supporting fibers. Our results support an ancestral function of Mgp in skeletal mineralization and a later derived function of Bgp in skeletal development that may be related to the divergence of bony vertebrates.
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Affiliation(s)
- Nicolas Leurs
- ISEM, CNRS, IRD, EPHE, Univ. Montpellier, Montpellier, France
| | | | - Stéphanie Ventéo
- Institute for Neurosciences of Montpellier, Saint Eloi Hospital, Inserm UMR 1051, Univ. Montpellier, Montpellier, France
| | - Tatjana Haitina
- Department of Organismal Biology, Uppsala University, Uppsala, Sweden
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20
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Pang Y, Su L, Fu Y, Jia F, Zhang C, Cao X, He W, Kong X, Xu J, Zhao J, Qin A. Inhibition of furin by bone targeting superparamagnetic iron oxide nanoparticles alleviated breast cancer bone metastasis. Bioact Mater 2021; 6:712-720. [PMID: 33005833 PMCID: PMC7516174 DOI: 10.1016/j.bioactmat.2020.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/24/2020] [Accepted: 09/11/2020] [Indexed: 12/17/2022] Open
Abstract
Breast cancer bone metastasis poses significant challenge for therapeutic strategies. Inside the metastatic environment, osteoclasts and tumor cells interact synergistically to promote cancer progression. In this study, the proprotein convertase furin is targeted due to its critical roles in both tumor cell invasion and osteoclast function. Importantly, the furin inhibitor is specifically delivered by bone targeting superparamagnetic iron oxide (SPIO) nanoparticles. Our in vitro and in vivo data demonstrate that this system can effectively inhibit both osteoclastic bone resorption and breast cancer invastion, leading to alleviated osteolysis. Therefore, the bone targeting & furin inhibition nanoparticle system is a promising therapeutic and diagnostic strategy for breast cancer bone metastasis.
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Affiliation(s)
- Yichuan Pang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Li Su
- Hongqiao International Institute of Medicine, Shanghai Jiaotong University School of Medicine, 201103, China
| | - Yao Fu
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Fan Jia
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chenxi Zhang
- Hongqiao International Institute of Medicine, Shanghai Jiaotong University School of Medicine, 201103, China
| | - Xiankun Cao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - Wenxin He
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - Xueqian Kong
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Jiake Xu
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - An Qin
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
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21
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Al Rifai O, Susan-Resiga D, Essalmani R, Creemers JWM, Seidah NG, Ferron M. In Vivo Analysis of the Contribution of Proprotein Convertases to the Processing of FGF23. Front Endocrinol (Lausanne) 2021; 12:690681. [PMID: 34149625 PMCID: PMC8213403 DOI: 10.3389/fendo.2021.690681] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 05/13/2021] [Indexed: 12/25/2022] Open
Abstract
Fibroblast growth factor 23 (FGF23) is a hormone secreted from fully differentiated osteoblasts and osteocytes that inhibits phosphate reabsorption by kidney proximal tubules. The full-length (i.e., intact) protein mediates FGF23 endocrine functions, while endoproteolytic cleavage at a consensus cleavage sequence for the proprotein convertases (PCs) inactivates FGF23. Two PCs, furin and PC5, were shown to cleave FGF23 in vitro at RHTR179↓, but whether they are fulfilling this function in vivo is currently unknown. To address this question, we used here mice lacking either or both furin and PC5 in cell-specific manners and mice lacking the paired basic amino acid-cleaving enzyme 4 (PACE4) in all cells. Our analysis shows that furin inactivation in osteoblasts and osteocytes results in a 25% increase in circulating intact FGF23, without any significant impact on serum phosphate levels, whether mice are maintained on a normal or a low phosphate diet. Under conditions of iron deficiency, FGF23 is normally processed in control mice, but its processing is impaired in mice lacking furin in osteoblasts and osteocytes. In contrast, FGF23 is normally cleaved following erythropoietin or IL-1β injections in mice lacking furin or both furin and PC5, and in PACE4-deficient mice. Altogether, these studies suggest that furin is only partially responsible for FGF23 cleavage under certain conditions in vivo. The processing of FGF23 may therefore involve the redundant action of multiple PCs or of other peptidases in osteoblasts, osteocytes and hematopoietic cells.
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Affiliation(s)
- Omar Al Rifai
- Unité de recherche en physiologie moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
- Programme de biologie moléculaire, Université de Montréal, Montréal, QC, Canada
| | - Delia Susan-Resiga
- Unité de recherche en biochimie neuroendocrinienne, Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
| | - Rachid Essalmani
- Unité de recherche en biochimie neuroendocrinienne, Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
| | - John W. M. Creemers
- Department of Human Genetics, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
| | - Nabil G. Seidah
- Unité de recherche en biochimie neuroendocrinienne, Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
| | - Mathieu Ferron
- Unité de recherche en physiologie moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, QC, Canada
- Programme de biologie moléculaire, Université de Montréal, Montréal, QC, Canada
- Département de Médecine, Université de Montréal, Montréal, QC, Canada
- Division of Experimental Medicine, McGill University, Montréal, QC, Canada
- *Correspondence: Mathieu Ferron,
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22
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Al Rifai O, Julien C, Lacombe J, Faubert D, Lira-Navarrete E, Narimatsu Y, Clausen H, Ferron M. The half-life of the bone-derived hormone osteocalcin is regulated through O-glycosylation in mice, but not in humans. eLife 2020; 9:61174. [PMID: 33284103 PMCID: PMC7822592 DOI: 10.7554/elife.61174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/06/2020] [Indexed: 12/14/2022] Open
Abstract
Osteocalcin (OCN) is an osteoblast-derived hormone with pleiotropic physiological functions. Like many peptide hormones, OCN is subjected to post-translational modifications (PTMs) which control its activity. Here, we uncover O-glycosylation as a novel PTM present on mouse OCN and occurring on a single serine (S8) independently of its carboxylation and endoproteolysis, two other PTMs regulating this hormone. We also show that O-glycosylation increases OCN half-life in plasma ex vivo and in the circulation in vivo. Remarkably, in human OCN (hOCN), the residue corresponding to S8 is a tyrosine (Y12), which is not O-glycosylated. Yet, the Y12S mutation is sufficient to O-glycosylate hOCN and to increase its half-life in plasma compared to wildtype hOCN. These findings reveal an important species difference in OCN regulation, which may explain why serum concentrations of OCN are higher in mouse than in human. Bones provide support and protection for organs in the body. However, over the last 15 years researchers have discovered that bones also release chemicals known as hormones, which can travel to other parts of the body and cause an effect. The cells responsible for making bone, known as osteoblasts, produce a hormone called osteocalcin which communicates with a number of different organs, including the pancreas and brain. When osteocalcin reaches the pancreas, it promotes the release of another hormone called insulin which helps regulate the levels of sugar in the blood. Osteocalcin also travels to other organs such as muscle, where it helps to degrade fats and sugars that can be converted into energy. It also has beneficial effects on the brain, and has been shown to aid memory and reduce depression. Osteocalcin has largely been studied in mice where levels are five to ten times higher than in humans. But it is unclear why this difference exists or how it alters the role of osteocalcin in humans. To answer this question, Al Rifai et al. used a range of experimental techniques to compare the structure and activity of osteocalcin in mice and humans. The experiments showed that mouse osteocalcin has a group of sugars attached to its protein structure, which prevent the hormone from being degraded by an enzyme in the blood. Human osteocalcin has a slightly different protein sequence and is therefore unable to bind to this sugar group. As a result, the osteocalcin molecules in humans are less stable and cannot last as long in the blood. Al Rifai et al. showed that when human osteocalcin was modified so the sugar group could attach, the hormone was able to stick around for much longer and reach higher levels when added to blood in the laboratory. These findings show how osteocalcin differs between human and mice. Understanding this difference is important as the effects of osteocalcin mean this hormone can be used to treat diabetes and brain disorders. Furthermore, the results reveal how the stability of osteocalcin could be improved in humans, which could potentially enhance its therapeutic effect.
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Affiliation(s)
- Omar Al Rifai
- Molecular Physiology Research unit, Institut de Recherches Cliniques de Montréal, Montréal, Canada.,Programme de biologie moléculaire, Université de Montréal, Montréal, Canada
| | - Catherine Julien
- Molecular Physiology Research unit, Institut de Recherches Cliniques de Montréal, Montréal, Canada
| | - Julie Lacombe
- Molecular Physiology Research unit, Institut de Recherches Cliniques de Montréal, Montréal, Canada
| | - Denis Faubert
- Proteomics Discovery Platform, Institut de Recherches Cliniques de Montréal, Montréal, Canada
| | - Erandi Lira-Navarrete
- University of Copenhagen, Faculty of Health Sciences, Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Copenhagen, Denmark
| | - Yoshiki Narimatsu
- University of Copenhagen, Faculty of Health Sciences, Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Copenhagen, Denmark
| | - Henrik Clausen
- University of Copenhagen, Faculty of Health Sciences, Copenhagen Center for Glycomics, Departments of Cellular and Molecular Medicine, Copenhagen, Denmark
| | - Mathieu Ferron
- Molecular Physiology Research unit, Institut de Recherches Cliniques de Montréal, Montréal, Canada.,Programme de biologie moléculaire, Université de Montréal, Montréal, Canada.,Département de Médecine, Université de Montréal, Montréal, Canada.,Division of Experimental Medicine, McGill University, Montréal, Canada
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23
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Zhao X, Pathak JL, Huang W, Zhu C, Li Y, Guan H, Zeng S, Ge L, Shu Y. Metformin enhances osteogenic differentiation of stem cells from human exfoliated deciduous teeth through AMPK pathway. J Tissue Eng Regen Med 2020; 14:1869-1879. [PMID: 33049108 DOI: 10.1002/term.3142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/15/2020] [Accepted: 10/01/2020] [Indexed: 12/22/2022]
Abstract
Stem cells from human exfoliated deciduous teeth (SHEDs) are ideal seed cells in bone tissue engineering. As a first-line antidiabetic drug, metformin has recently been found to promote bone formation. The purpose of this study was to investigate the effect of metformin on the osteogenic differentiation of SHEDs and its underlying mechanism. SHEDs were isolated from the dental pulp of deciduous teeth from healthy children aged 6 to 12, and their surface antigen markers of stem cells were detected by flow cytometry. The effect of metformin (10-200 μM) treatment on SHEDs cell viability, proliferation, and osteogenic differentiation was analyzed. The activation of adenosine 5'-monophosphate-activated protein kinase (AMPK) phosphorylation Thr172 (p-AMPK) was determined by western blot assay. SHEDs were confirmed as mesenchymal stem cells (MSCs) on the basis of the expression of characteristic surface antigens. Metformin (10-200 μM) did not affect the viability and proliferation of SHEDs but significantly increased the expression of osteogenic genes, alkaline phosphatase activity, matrix mineralization, and p-AMPK level expression in SHEDs. Compound C, a specific inhibitor of the AMPK pathway, abolished metformin-induced osteogenic differentiation of SHEDs. Moreover, metformin treatment enhanced the expression of proangiogenic/osteogenic growth factors BMP2 and VEGF but reduced the osteoclastogenic factor RANKL/OPG expression in SHEDs. In conclusion, metformin could induce the osteogenic differentiation of SHEDs by activating the AMPK pathway and regulates the expression of proangiogenic/osteogenic growth factors and osteoclastogenic factors in SHEDs. Therefore, metformin-pretreated SHEDs could be a potential source of seed cells during stem cell-based bone tissue engineering.
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Affiliation(s)
- Xuedan Zhao
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Janak L Pathak
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,Institute of Oral Disease, Guangzhou Medical University, Guangzhou, China
| | - Wenyan Huang
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Chuandong Zhu
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Yunyang Li
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Hongbing Guan
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Sujuan Zeng
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Linhu Ge
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,Institute of Oral Disease, Guangzhou Medical University, Guangzhou, China
| | - Yan Shu
- Department of Pediatric Dentistry, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland at Baltimore, Baltimore, MD, USA
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24
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Suchacki KJ, Morton NM, Vary C, Huesa C, Yadav MC, Thomas BJ, Turban S, Bunger L, Ball D, Barrios-Llerena ME, Guntur AR, Khavandgar Z, Cawthorn WP, Ferron M, Karsenty G, Murshed M, Rosen CJ, MacRae VE, Millán JL, Farquharson C. PHOSPHO1 is a skeletal regulator of insulin resistance and obesity. BMC Biol 2020; 18:149. [PMID: 33092598 PMCID: PMC7584094 DOI: 10.1186/s12915-020-00880-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/25/2020] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND The classical functions of the skeleton encompass locomotion, protection and mineral homeostasis. However, cell-specific gene deletions in the mouse and human genetic studies have identified the skeleton as a key endocrine regulator of metabolism. The bone-specific phosphatase, Phosphatase, Orphan 1 (PHOSPHO1), which is indispensable for bone mineralisation, has been recently implicated in the regulation of energy metabolism in humans, but its role in systemic metabolism remains unclear. Here, we probe the mechanism underlying metabolic regulation by analysing Phospho1 mutant mice. RESULTS Phospho1-/- mice exhibited improved basal glucose homeostasis and resisted high-fat-diet-induced weight gain and diabetes. The metabolic protection in Phospho1-/- mice was manifested in the absence of altered levels of osteocalcin. Osteoblasts isolated from Phospho1-/- mice were enriched for genes associated with energy metabolism and diabetes; Phospho1 both directly and indirectly interacted with genes associated with glucose transport and insulin receptor signalling. Canonical thermogenesis via brown adipose tissue did not underlie the metabolic protection observed in adult Phospho1-/- mice. However, the decreased serum choline levels in Phospho1-/- mice were normalised by feeding a 2% choline rich diet resulting in a normalisation in insulin sensitivity and fat mass. CONCLUSION We show that mice lacking the bone mineralisation enzyme PHOSPHO1 exhibit improved basal glucose homeostasis and resist high-fat-diet-induced weight gain and diabetes. This study identifies PHOSPHO1 as a potential bone-derived therapeutic target for the treatment of obesity and diabetes.
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Affiliation(s)
- Karla J Suchacki
- Roslin Institute, R(D)SVS, University of Edinburgh, Edinburgh, Scotland, UK. .,Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, Scotland, UK.
| | - Nicholas M Morton
- Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, Scotland, UK
| | - Calvin Vary
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Carmen Huesa
- Roslin Institute, R(D)SVS, University of Edinburgh, Edinburgh, Scotland, UK.,MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, Scotland, UK
| | - Manisha C Yadav
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, USA
| | - Benjamin J Thomas
- Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, Scotland, UK
| | - Sophie Turban
- Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, Scotland, UK
| | - Lutz Bunger
- Scottish Rural College, Edinburgh, Scotland, UK
| | - Derek Ball
- Medical Sciences and Nutrition, School of Medicine, University of Aberdeen, Aberdeen, Scotland, UK
| | | | - Anyonya R Guntur
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Zohreh Khavandgar
- Department of Medicine and Faculty of Dentistry, McGill University, Montreal, Canada
| | - William P Cawthorn
- Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, Scotland, UK
| | - Mathieu Ferron
- Molecular Physiology Research Unit, Institut de recherches cliniques de Montréal, Montreal, Canada
| | - Gérard Karsenty
- Department of Genetics and Development, Columbia University Medical Center, New York, USA
| | - Monzur Murshed
- Department of Medicine and Faculty of Dentistry, McGill University, Montreal, Canada
| | - Clifford J Rosen
- Center for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, USA
| | - Vicky E MacRae
- Roslin Institute, R(D)SVS, University of Edinburgh, Edinburgh, Scotland, UK
| | - Jose Luis Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, USA
| | - Colin Farquharson
- Roslin Institute, R(D)SVS, University of Edinburgh, Edinburgh, Scotland, UK
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25
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Fairfield H, Costa S, DeMambro V, Schott C, Martins JDS, Ferron M, Vary C, Reagan MR. Targeting Bone Cells During Sexual Maturation Reveals Sexually Dimorphic Regulation of Endochondral Ossification. JBMR Plus 2020; 4:e10413. [PMID: 33210065 PMCID: PMC7657395 DOI: 10.1002/jbm4.10413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 09/01/2020] [Accepted: 09/22/2020] [Indexed: 11/18/2022] Open
Abstract
In endochondral ossification, chondroblasts become embedded in their matrix and become chondrocytes, which are mature cells that continue to proliferate, eventually becoming hypertrophic. Hypertrophic chondrocytes produce cartilage that is then resorbed by osteoclasts prior to bone matrix replacement via osteoblasts. Although sexually dimorphic bone phenotypes have long been characterized, specific modulation of the growth plate during a critical window in sexual maturation has not been evaluated. Here we report that specific depletion of osteocalcin‐ (OCN‐) expressing cells in vivo during sexual maturation leads to dimorphic bone phenotypes in males and females. At 6 to 8 weeks of age, OCN‐Cre;iDTR (inducible diphtheria toxin receptor‐expressing) mice were treated with diphtheria toxin (DT) for 2 weeks to deplete OCN+ cells. At the end of the study, long bones were collected for μCT and histomorphometry, and serum was collected for proteomic and lipidomic analyses. Ablation of OCN+ cells in mice leads to consistent trends for weight loss after 2 weeks of treatment. Females exhibited decreased skeletal parameters in response to OCN+ cell ablation treatment, as expected. However, OCN+ cell ablation in males uniquely displayed an expansion of hypertrophic chondrocytes, a widening of the growth plate, and an abnormal “clubbing” anatomy of the distal femur. Following DT treatment, mice from both sexes also underwent metabolic cage analysis, in which both sexes exhibited decreased energy expenditure. We conclude that skewing endochondral bone formation during longitudinal growth has a profound effect on body weight and energy expenditure with sex‐specific effects on developing bone. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Heather Fairfield
- Center for Molecular Medicine, Maine Medical Center Research Institute Scarborough ME USA
| | - Samantha Costa
- Center for Molecular Medicine, Maine Medical Center Research Institute Scarborough ME USA.,University of Maine Graduate School of Biomedical Science and Engineering Orono ME USA.,Graduate School of Biomedical Sciences and School of Medicine Tufts University Boston MA USA
| | - Victoria DeMambro
- Center for Molecular Medicine, Maine Medical Center Research Institute Scarborough ME USA.,University of Maine Graduate School of Biomedical Science and Engineering Orono ME USA
| | - Celine Schott
- Molecular Physiology Research Unit Institut de Recherches Cliniques de Montreal Montreal Quebec Canada.,Department of Medicine and Molecular Biology Programs of the Faculty of Medicine Université de Montreal Montreal Quebec Canada
| | | | - Mathieu Ferron
- Molecular Physiology Research Unit Institut de Recherches Cliniques de Montreal Montreal Quebec Canada.,Department of Medicine and Molecular Biology Programs of the Faculty of Medicine Université de Montreal Montreal Quebec Canada
| | - Calvin Vary
- Center for Molecular Medicine, Maine Medical Center Research Institute Scarborough ME USA.,University of Maine Graduate School of Biomedical Science and Engineering Orono ME USA.,Graduate School of Biomedical Sciences and School of Medicine Tufts University Boston MA USA
| | - Michaela R Reagan
- Center for Molecular Medicine, Maine Medical Center Research Institute Scarborough ME USA.,University of Maine Graduate School of Biomedical Science and Engineering Orono ME USA.,Graduate School of Biomedical Sciences and School of Medicine Tufts University Boston MA USA
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26
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Skeletal glucocorticoid signalling determines leptin resistance and obesity in aging mice. Mol Metab 2020; 42:101098. [PMID: 33045434 PMCID: PMC7596342 DOI: 10.1016/j.molmet.2020.101098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/28/2020] [Accepted: 10/06/2020] [Indexed: 11/23/2022] Open
Abstract
Objective Aging and chronic glucocorticoid excess share a number of critical features, including the development of central obesity, insulin resistance and osteoporosis. Previous studies have shown that skeletal glucocorticoid signalling increases with aging and that osteoblasts mediate the detrimental skeletal and metabolic effects of chronic glucocorticoid excess. Here, we investigated whether endogenous glucocorticoid action in the skeleton contributes to metabolic dysfunction during normal aging. Methods Mice lacking glucocorticoid signalling in osteoblasts and osteocytes (HSD2OB/OCY-tg mice) and their wild-type littermates were studied until 3, 6, 12 and 18 months of age. Body composition, adipose tissue morphology, skeletal gene expression and glucose/insulin tolerance were assessed at each timepoint. Leptin sensitivity was assessed by arcuate nucleus STAT3 phosphorylation and inhibition of feeding following leptin administration. Tissue-specific glucose uptake and adipose tissue oxygen consumption rate were also measured. Results As they aged, wild-type mice became obese and insulin-resistant. In contrast, HSD2OB/OCY-tg mice remained lean and insulin-sensitive during aging. Obesity in wild-type mice was due to leptin resistance, evidenced by an impaired ability of exogenous leptin to suppress food intake and phosphorylate hypothalamic STAT3, from 6 months of age onwards. In contrast, HSD2OB/OCY-tg mice remained leptin-sensitive throughout the study. Compared to HSD2OB/OCY-tg mice, leptin-resistant wild-type mice displayed attenuated sympathetic outflow, with reduced tyrosine hydroxylase expression in both the hypothalamus and thermogenic adipose tissues. Adipose tissue oxygen consumption rate declined progressively in aging wild-type mice but was maintained in HSD2OB/OCY-tg mice. At 18 months of age, adipose tissue glucose uptake was increased 3.7-fold in HSD2OB/OCY-tg mice, compared to wild-type mice. Conclusions Skeletal glucocorticoid signalling is critical for the development of leptin resistance, obesity and insulin resistance during aging. These findings underscore the skeleton's importance in the regulation of body weight and implicate osteoblastic/osteocytic glucocorticoid signalling in the aetiology of aging-related obesity and metabolic disease. As they aged, wild-type CD1 mice became hyperphagic, obese and insulin-resistant. Mice lacking skeletal glucocorticoid signalling (HSD2OB/OCY-tg) were lean and healthy. Unlike wild-type mice, HSD2OB/OCY-tg mice remained leptin-sensitive during aging. Adipose tissue sympathetic outflow was maintained in aging HSD2OB/OCY-tg mice.
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27
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Sun J, Zhang D, Xu J, Chen C, Deng D, Pan F, Dong L, Li S, Ye S. Circulating FABP4, nesfatin-1, and osteocalcin concentrations in women with gestational diabetes mellitus: a meta-analysis. Lipids Health Dis 2020; 19:199. [PMID: 32861247 PMCID: PMC7456504 DOI: 10.1186/s12944-020-01365-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/10/2020] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Recent studies have investigated the circulating adipocyte fatty acid binding protein (FABP4), nesfatin-1, and osteocalcin (OC) concentrations in women diagnosed with gestational diabetes mellitus (GDM), but the findings prove to be conflicting. The objective of this research was to systematically assess the relationship of circulating levels of above adipokines with GDM. METHODS Pubmed, Embase, Web of Science, Cochrane library, OVID, and Scopus were performed to locate articles published up to January 31, 2020. Pooled standard mean differences (SMDs) with 95% confidence intervals (CIs), and 95% predictive intervals (PIs) were calculated by random-effects models to compare levels of adipokines between GDM cases and control groups. Cumulative and single-arm meta-analyses were also performed. RESULTS Thirty-one studies comprising 4590 participants were included. No significant differences were found between GDM women and healthy controls in circulating nesfatin-1 levels (4.56 vs. 5.02 ng/mL; SMD = - 0.11, 95% CI -0.61-0.38, 95% PI -1.63-1.41). Nevertheless, circulating FABP4 and OC levels observed in GDM women outnumbered normal controls (FABP4, 23.68 vs. 16.04 ng/mL; SMD = 2.99, 95% CI 2.28-3.69, 95% PI 0.28-5.71; OC, 52.34 vs. 51.04 ng/mL; SMD = 0.68, 95% CI 0.31-1.05, 95% PI -0.48-1.84). The cumulative meta-analysis showed that the SMDs of circulating FABP4 and OC levels had stabilized between the two groups. CONCLUSIONS Elevated circulating FABP4 and OC levels were observed in GDM women, but nesfatin-1 levels did not change, the PI of OC crossed the no-effect threshold. The results suggested that FABP4 is more suitable as a biomarker of GDM compared to OC in a future study, which is useful in identifying pregnant women who are likely to develop GDM and providing prompt management strategies.
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Affiliation(s)
- Jianran Sun
- Division of Life Science and Medicine, Department of Endocrinology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), University of Science and Technology of China, 17 Lujiang Road, Hefei, 230001, China
| | - Dai Zhang
- Division of Life Science and Medicine, Department of Endocrinology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), University of Science and Technology of China, 17 Lujiang Road, Hefei, 230001, China
| | - Jiang Xu
- Division of Life Science and Medicine, Department of Endocrinology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), University of Science and Technology of China, 17 Lujiang Road, Hefei, 230001, China
| | - Chao Chen
- Division of Life Science and Medicine, Department of Endocrinology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), University of Science and Technology of China, 17 Lujiang Road, Hefei, 230001, China
| | - Datong Deng
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230022, Anhui, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81Meishan Road, Hefei, 230032, Anhui, China
| | - Lin Dong
- Division of Life Science and Medicine, Department of Endocrinology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), University of Science and Technology of China, 17 Lujiang Road, Hefei, 230001, China
| | - Sumei Li
- Division of Life Science and Medicine, Department of Endocrinology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), University of Science and Technology of China, 17 Lujiang Road, Hefei, 230001, China
| | - Shandong Ye
- Division of Life Science and Medicine, Department of Endocrinology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), University of Science and Technology of China, 17 Lujiang Road, Hefei, 230001, China.
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28
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Yao D, Huang L, Ke J, Zhang M, Xiao Q, Zhu X. Bone metabolism regulation: Implications for the treatment of bone diseases. Biomed Pharmacother 2020; 129:110494. [PMID: 32887023 DOI: 10.1016/j.biopha.2020.110494] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 12/17/2022] Open
Abstract
Bone cells in the human body are continuously engaged in cellular metabolism, including the interaction between bone cells, the interaction between the erythropoietic cells of the bone marrow and stromal cells, for the remodeling and reconstruction of bone. Osteoclasts and osteoblasts play an important role in bone metabolism. Diseases occur when bone metabolism is abnormal, but little is known about the signaling pathways that affect bone metabolism. The study of these signaling pathways will help us to use the relevant techniques to intervene, so as to improve the condition. The study of these signaling pathways will help us to use the relevant techniques to intervene, so as to improve the condition. I believe they will shine in the diagnosis and treatment of future clinical bone diseases.
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Affiliation(s)
- Danqi Yao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong 524023, China
| | - Lianfang Huang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong 524023, China
| | - Jianhao Ke
- College of Agriculture, South China Agricultural University, Guangzhou 510046, China
| | - Ming Zhang
- Department of Physical Medicine and Rehabilitation, Zibo Central Hospital, Shandong University, Zibo 255000, China.
| | - Qin Xiao
- Department of Blood Transfusion, Peking University Shenzhen Hospital, Shenzhen 518036, China.
| | - Xiao Zhu
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong 524023, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong, 524023, China.
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29
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Karsenty G. The facts of the matter: What is a hormone? PLoS Genet 2020; 16:e1008938. [PMID: 32589668 PMCID: PMC7319275 DOI: 10.1371/journal.pgen.1008938] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 06/17/2020] [Indexed: 12/17/2022] Open
Affiliation(s)
- Gerard Karsenty
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, New York, United States of America
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30
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What is the function of osteocalcin? J Oral Biosci 2020; 62:223-227. [PMID: 32535287 DOI: 10.1016/j.job.2020.05.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 01/16/2023]
Abstract
BACKGROUND Osteocalcin is the most abundant non-collagenous protein in bone and is specifically expressed in osteoblasts. Previous studies using osteocalcin-deficient (Ocn-/-) mice demonstrated that osteocalcin inhibits bone formation, and serum uncarboxylated osteocalcin functions as a hormone that improves glucose metabolism, induces testosterone synthesis in the testes, and maintains muscle mass. Furthermore, the relationship between serum osteocalcin and glucose metabolism or cardiovascular risk in humans has been reported. However, new Ocn-/- mice exhibited different phenotypes. HIGHLIGHT Bone volume, formation, and resorption were normal in the new Ocn-/- mice. The orientation of collagen fibers was parallel to the bone longitudinal direction and the size of apatite crystals was normal, but the c-axis of apatite crystals was random and bone strength was reduced in new Ocn-/- mice. Glucose metabolism, testosterone synthesis, and muscle mass were normal in new Ocn-/- mice. Exercise improved glucose metabolism and increased bone formation, leading to an increase in the serum osteocalcin level, which is a marker for bone formation. CONCLUSION Contrary to previous findings, new Ocn-/- mice revealed that osteocalcin has no function in the regulation of bone quantity, but instead, functions to direct the parallel alignment of the c-axis of apatite crystals with collagen fibrils. Moreover, it has no physiological function as a hormone that regulates glucose metabolism, testosterone synthesis, or muscle mass. These controversial phenotypes require further investigation. The relationship of serum osteocalcin with glucose metabolism or cardiovascular risk suggests the importance of exercise for their improvement.
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Lacombe J, Al Rifai O, Loter L, Moran T, Turcotte AF, Grenier-Larouche T, Tchernof A, Biertho L, Carpentier AC, Prud'homme D, Rabasa-Lhoret R, Karsenty G, Gagnon C, Jiang W, Ferron M. Measurement of bioactive osteocalcin in humans using a novel immunoassay reveals association with glucose metabolism and β-cell function. Am J Physiol Endocrinol Metab 2020; 318:E381-E391. [PMID: 31935114 PMCID: PMC7395472 DOI: 10.1152/ajpendo.00321.2019] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Osteocalcin (OCN) is a bone-derived hormone involved in the regulation of glucose metabolism. In serum, OCN exists in carboxylated and uncarboxylated forms (ucOCN), and studies in rodents suggest that ucOCN is the bioactive form of this hormone. Whether this is also the case in humans is unclear, because a reliable assay to measure ucOCN is not available. Here, we established and validated a new immunoassay (ELISA) measuring human ucOCN and used it to determine the level of bioactive OCN in two cohorts of overweight or obese subjects, with or without type 2 diabetes (T2D). The ELISA could specifically detect ucOCN concentrations ranging from 0.037 to 1.8 ng/mL. In a first cohort of overweight or obese postmenopausal women without diabetes (n = 132), ucOCN correlated negatively with fasting glucose (r = -0.18, P = 0.042) and insulin resistance assessed by the homeostatic model assessment of insulin resistance (r = -0.18, P = 0.038) and positively with insulin sensitivity assessed by a hyperinsulinemic-euglycemic clamp (r = 0.18, P = 0.043) or insulin sensitivity index derived from an oral glucose tolerance test (r = 0.26, P = 0.003). In a second cohort of subjects with severe obesity (n = 16), ucOCN was found to be lower in subjects with T2D compared with those without T2D (2.76 ± 0.38 versus 4.52 ± 0.06 ng/mL, P = 0.009) and to negatively correlate with fasting glucose (r = -0.50, P = 0.046) and glycated hemoglobin (r = -0.57, P = 0.021). Moreover, the subjects with ucOCN levels below 3 ng/mL had a reduced insulin secretion rate during a hyperglycemic clamp (P = 0.03). In conclusion, ucOCN measured with this novel and specific assay is inversely associated with insulin resistance and β-cell dysfunction in humans.
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Affiliation(s)
- Julie Lacombe
- Unité de Recherche en Physiologie Moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, Québec, Canada
| | - Omar Al Rifai
- Unité de Recherche en Physiologie Moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, Québec, Canada
- Department of Medicine, Université de Montréal, Québec, Canada
| | | | - Thomas Moran
- Center for Therapeutic Antibody Development, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Anne-Frédérique Turcotte
- Endocrinology and Nephrology Unit, CHU de Québec-Université Laval Research Center, Québec City, Québec, Canada
| | - Thomas Grenier-Larouche
- Québec Heart and Lung Institute Research Centre, Québec City, Québec, Canada
- Service d'Endocrinologie, Département de Médecine, Centre de Recherche du CHUS, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - André Tchernof
- Québec Heart and Lung Institute Research Centre, Québec City, Québec, Canada
| | - Laurent Biertho
- Québec Heart and Lung Institute Research Centre, Québec City, Québec, Canada
| | - André C Carpentier
- Service d'Endocrinologie, Département de Médecine, Centre de Recherche du CHUS, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Denis Prud'homme
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
- Institut du Savoir Montfort, Ottawa, Ontario, Canada
| | - Rémi Rabasa-Lhoret
- Département de Nutrition, Université de Montréal, Montréal, Québec, Canada
- Unité de Recherche en Maladies Métaboliques, Institut de Recherches Cliniques de Montréal, Montréal, Québec, Canada
| | - Gerard Karsenty
- Department of Genetics and Development, Columbia University Medical Center, New York, New York
| | - Claudia Gagnon
- Endocrinology and Nephrology Unit, CHU de Québec-Université Laval Research Center, Québec City, Québec, Canada
- Québec Heart and Lung Institute Research Centre, Québec City, Québec, Canada
- Department of Medicine, Université Laval, Québec City, Québec, Canada
| | | | - Mathieu Ferron
- Unité de Recherche en Physiologie Moléculaire, Institut de Recherches Cliniques de Montréal, Montréal, Québec, Canada
- Department of Medicine, Université de Montréal, Québec, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montréal, Québec, Canada
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In Vitro Evaluation of a Novel Osteo-Inductive Scaffold for Osteogenic Differentiation of Bone-Marrow Mesenchymal Stem Cells. J Craniofac Surg 2020; 31:577-582. [PMID: 31895856 DOI: 10.1097/scs.0000000000006133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Demineralized bone matrices (DBMs) were demonstrated to be a promising candidate for bone regeneration by previous studies. However, the limited osteoinductivity of DBMs was insufficient for a better repairing of bone defect. Osteoblasts (OBs), the major cellular component of bone tissues, play an important role in the formation of new bone. The extracellular matrix (ECM) of OB is one of the main components of bone formation niche. OBJECTIVE To combine the DBMs with the ECM of OBs to construct a novel scaffold that could be used for bone reconstruction. METHODS In this study, OBs were cultured on the surface of DBMs for 10 days and removed by Triton X-100 and ammonium hydroxide to prepare the OBs-ECM-DBMs (OEDBMs). A series of material features such as residues of OBs and ECM, cytotoxity, and osteoinductive capability of OEDBMs were evaluated. RESULTS Low cell residues and low content of DNA were observed in OEDBMs. Compared with DBMs, OEDBMs possessed more bone tissues organic matrix proteins, such as osteocalcin, osteopontin, and collagen I. Rat bone marrow mesenchymal stem cells (rBMSCs) presented a good viability when cultured on both 2 materials. The significant upregulations of osteogenic genes and proteins of rBMSCs were observed in OEDBMs group compared with DBMs group. CONCLUSION Taken together, these findings suggested that the OB-secreted ECM may be qualified as an ideal modification method for enhancing the performance of engineered bone scaffold.
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Wang Q, Shi D, Geng Y, Huang Q, Xiang L. Baicalin augments the differentiation of osteoblasts via enhancement of microRNA-217. Mol Cell Biochem 2020; 463:91-100. [PMID: 31606864 DOI: 10.1007/s11010-019-03632-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 09/25/2019] [Indexed: 12/17/2022]
Abstract
Baicalin (BAI), a sort of flavonoid monomer, acquires from Scutellaria baicalensis Georgi, which was forcefully reported in diversified ailments due to the pleiotropic properties. But, the functions of BAI in osteoblast differentiation have not been addressed. The intentions of this study are to attest the influences of BAI in the differentiation of osteoblasts. MC3T3-E1 cells or rat primary osteoblasts were exposed to BAI, and then cell viability, ALP activity, mineralization process, and Runx2 and Ocn expression were appraised through implementing CCK-8, p-nitrophenyl phosphate (pNPP), Alizarin red staining, western blot, and RT-qPCR assays. The microRNA-217 (miR-217) expression was evaluated in MC3T3-E1 cells or rat primary osteoblasts after BAI disposition; meanwhile, the functions of miR-217 in BAI-administrated MC3T3-E1 cells were estimated after miR-217 inhibitor transfection. The impacts of BAI and miR-217 inhibition on Wnt/β-catenin and MEK/ERK pathways were probed to verify the involvements in BAI-regulated the differentiation of osteoblasts. BAI accelerated cell viability, osteoblast activity, and Runx2 and Ocn expression in MC3T3-E1 cells or rat primary osteoblasts, and the phenomena were mediated via activations of Wnt/β-catenin and MEK/ERK pathways. Elevation of miR-217 was observed in BAI-disposed MC3T3-E1 cells or rat primary osteoblasts, and miR-217 repression annulled the functions of BAI in MC3T3-E1 cell viability and differentiation. Additionally, the activations of Wnt/β-catenin and MEK/ERK pathways evoked by BAI were both restrained by repression of miR-217. These explorations uncovered that BAI augmented the differentiation of osteoblasts via activations of Wnt/β-catenin and MEK/ERK pathways by ascending miR-217 expression.
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Affiliation(s)
- Qi Wang
- Department of Orthopaedics, Heze Municipal Hospital, No. 2888 Caozhou Road, Heze, 274031, China
| | - Donglei Shi
- Department of Orthopaedics, Heze Municipal Hospital, No. 2888 Caozhou Road, Heze, 274031, China
| | - Yuanyuan Geng
- Department of Comprehensive Medical, Heze Infectious Disease Hospital, No. 298 Juyang Road, Heze, 274029, China
| | - Qishan Huang
- Department of Orthopaedics, The Second Affiliated Hospital of Wenzhou Medical University, No. 109 Xueyuan West Road, Wenzhou, 325000, China
| | - Longzhan Xiang
- Department of Orthopaedics, Heze Municipal Hospital, No. 2888 Caozhou Road, Heze, 274031, China.
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Chumachenko YD, Harbuzova VY, Ataman AV. Association Study between BGLAP Gene HindIII Polymorphism and Type 2 Diabetes Mellitus Development in Ukrainian Population. J Diabetes Res 2019; 2019:9302636. [PMID: 31886290 PMCID: PMC6900942 DOI: 10.1155/2019/9302636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 10/16/2019] [Accepted: 11/01/2019] [Indexed: 12/20/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) belongs to the diseases with hereditary predisposition, so both environmental and genetic factors contribute to its development. Recent studies have demonstrated that the skeleton realizes systemic regulation of energy metabolism through the secretion of osteocalcin (OCN). Thus, the association analysis between HindIII single nucleotide polymorphism of OCN gene (BGLAP) promoter region and T2DM development in Ukrainian population was carried out. 153 individuals diagnosed with T2DM and 311 control individuals were enrolled in the study. The genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. The lack of association between BGLAP HindIII single nucleotide polymorphism (SNP) and T2DM development among Ukrainians was found. Further studies with extended groups of comparison are needed to confirm the obtained results.
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Affiliation(s)
- Yaroslav D. Chumachenko
- Scientific Laboratory of Molecular Genetic Studies, Medical Institute of the Sumy State University, 40007, Ukraine
| | - Viktoriia Yu. Harbuzova
- Scientific Laboratory of Molecular Genetic Studies, Medical Institute of the Sumy State University, 40007, Ukraine
| | - Alexander V. Ataman
- Department of Physiology and Pathophysiology with Medical Biology Course, Medical Institute of the Sumy State University, 40018, Ukraine
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Yi Y, Du L, Qin M, Chen XQ, Sun XN, Li C, Du LJ, Liu Y, Liu Y, Sun JY, Tang Z, Xu M, Fang B, Liu X, Duan SZ. Regulation of Atrial Fibrosis by the Bone. Hypertension 2019; 73:379-389. [PMID: 30595118 DOI: 10.1161/hypertensionaha.118.11544] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
MR (mineralocorticoid receptor) antagonists have been demonstrated to provide beneficial effects on preventing atrial fibrosis. However, the underlying cellular and molecular mechanisms remain unclear. We aim to determine the role of osteoblast MR in atrial fibrosis and to explore the underlying mechanism. Using osteoblast MR knockout mouse in combination with mutant TGF (transforming growth factor)-β1 transgenic mouse, we demonstrated that MR deficiency in osteoblasts significantly attenuated atrial fibrosis. Mechanistically, MR directly regulated expression of OCN (osteocalcin) in osteoblasts. Both carboxylated and undercarboxylated OCNs (ucOC) were less secreted in osteoblast MR knockout mice. Mutant TGF-β1 transgenic mice supplemented with recombinant ucOC showed aggravated atrial fibrosis. In cultured atrial fibroblasts, ucOC treatment promoted proliferation and migration of atrial fibroblasts, whereas cotreatment with an antagonist for a GPRC6A (G-protein-coupled receptor, family C, group 6, member A) abolished these effects. Western blotting analysis revealed upregulation of PKA (protein kinase A) and CREB (cAMP-response element-binding protein) phosphorylation after ucOC treatment. Inhibition of PKA with its antagonist reduced ucOC-induced proliferation and migration of atrial fibroblasts. Finally, the impact of osteoblast MR deficiency on atrial fibrosis was abolished by ucOC administration in mutant TGF-β1 transgenic mice. Taken together, MR deficiency in osteoblasts attenuated atrial fibrosis by downregulation of OCN to promote proliferation and migration of atrial fibroblasts.
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Affiliation(s)
- Yi Yi
- From the Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, China (Y.Y., L.D., M.Q., X.-Q.C., X.L.)
| | - Lili Du
- From the Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, China (Y.Y., L.D., M.Q., X.-Q.C., X.L.)
| | - Mu Qin
- From the Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, China (Y.Y., L.D., M.Q., X.-Q.C., X.L.)
| | - Xiao-Qing Chen
- From the Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, China (Y.Y., L.D., M.Q., X.-Q.C., X.L.)
| | - Xue-Nan Sun
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of the Chinese Academy of Sciences (X.-N.S., Yuan Liu).,Laboratory of Oral Microbiota and Systemic Diseases (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., S.-Z.D.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Chao Li
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas (C.L.)
| | - Lin-Juan Du
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Laboratory of Oral Microbiota and Systemic Diseases (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., S.-Z.D.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Yuan Liu
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of the Chinese Academy of Sciences (X.-N.S., Yuan Liu).,Laboratory of Oral Microbiota and Systemic Diseases (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., S.-Z.D.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Yan Liu
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Laboratory of Oral Microbiota and Systemic Diseases (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., S.-Z.D.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Jian-Yong Sun
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Laboratory of Oral Microbiota and Systemic Diseases (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., S.-Z.D.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Zisheng Tang
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Department of Endodontics (Z.T.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Min Xu
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Department of Orthodontics (M.X., B.F.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Bing Fang
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Department of Orthodontics (M.X., B.F.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
| | - Xu Liu
- From the Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, China (Y.Y., L.D., M.Q., X.-Q.C., X.L.)
| | - Sheng-Zhong Duan
- National Clinical Research Center for Oral Diseases, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, China (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., Z.T., M.X., B.F., S.-Z.D.).,Laboratory of Oral Microbiota and Systemic Diseases (X.-N.S., L.-J.D., Yuan Liu, Yan Liu, J.-Y.S., S.-Z.D.), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, China
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Klaver E, Zhao P, May M, Flanagan-Steet H, Freeze HH, Gilmore R, Wells L, Contessa J, Steet R. Selective inhibition of N-linked glycosylation impairs receptor tyrosine kinase processing. Dis Model Mech 2019; 12:dmm.039602. [PMID: 31101650 PMCID: PMC6602306 DOI: 10.1242/dmm.039602] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 05/08/2019] [Indexed: 12/14/2022] Open
Abstract
Global inhibition of N-linked glycosylation broadly reduces glycan occupancy on glycoproteins, but identifying how this inhibition functionally impacts specific glycoproteins is challenging. This limits our understanding of pathogenesis in the congenital disorders of glycosylation (CDG). We used selective exo-enzymatic labeling of cells deficient in the two catalytic subunits of oligosaccharyltransferase - STT3A and STT3B - to monitor the presence and glycosylation status of cell surface glycoproteins. We show reduced abundance of two canonical tyrosine receptor kinases - the insulin receptor and insulin-like growth factor 1 receptor (IGF-1R) - at the cell surface in STT3A-null cells, due to decreased N-linked glycan site occupancy and proteolytic processing in combination with increased endoplasmic reticulum localization. Providing cDNA for Golgi-resident proprotein convertase subtilisin/kexin type 5a (PCSK5a) and furin cDNA to wild-type and mutant cells produced under-glycosylated forms of PCSK5a, but not furin, in cells lacking STT3A. Reduced glycosylation of PCSK5a in STT3A-null cells or cells treated with the oligosaccharyltransferase inhibitor NGI-1 corresponded with failure to rescue receptor processing, implying that alterations in the glycosylation of this convertase have functional consequences. Collectively, our findings show that STT3A-dependent inhibition of N-linked glycosylation on receptor tyrosine kinases and their convertases combines to impair receptor processing and surface localization. These results provide new insight into CDG pathogenesis and highlight how the surface abundance of some glycoproteins can be dually impacted by abnormal glycosylation.
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Affiliation(s)
- Elsenoor Klaver
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | - Peng Zhao
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | - Melanie May
- Research Division, Greenwood Genetic Center, Greenwood, SC 29646, USA
| | | | - Hudson H Freeze
- Sanford Children's Health Research Center, Sanford-Burnham-Prebys Discovery Institute, La Jolla, CA 92037, USA
| | - Reid Gilmore
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worchester, MA 01655, USA
| | - Lance Wells
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
| | - Joseph Contessa
- Departments of Therapeutic Radiology and Pharmacology, Yale University, New Haven, CT 06520, USA
| | - Richard Steet
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA .,Research Division, Greenwood Genetic Center, Greenwood, SC 29646, USA
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Kosmopoulos M, Paschou SA, Grapsa J, Anagnostis P, Vryonidou A, Goulis DG, Siasos G. The Emerging Role of Bone Markers in Diagnosis and Risk Stratification of Patients With Coronary Artery Disease. Angiology 2019; 70:690-700. [PMID: 30696256 DOI: 10.1177/0003319718822625] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecules that govern bone metabolism, such as osteoprotegerin (OPG) and osteopontin (OPN), have been isolated from other tissues, including blood vessels. Atherosclerosis and coronary artery disease (CAD) are leading causes of mortality worldwide. Despite novel biochemical and imaging techniques, early detection of CAD is still unsatisfactory. Experimental data indicate that bone turnover markers (BTMs) contribute to the development of atherosclerosis. This finding has sparked interest in their clinical use. This narrative review analyzed information from >50 human studies, which strongly suggest that OPG, OPN, and alkaline phosphatase (ALP) serum concentrations are altered in patients with CAD. Osteoprotegerin seems to be more useful for the detection of early disease, while OPN and ALP are recruited in vessels after the establishment of disease. Osteocalcin may be used as a flow cytometry marker for endothelial progenitor cells and can constitute a marker to monitor response to interventional treatments and risk of restenosis. However, most data derive from observational studies. Incorporation of BTMs in multifactorial computational algorithms could further determine their role in CAD diagnosis and prognosis together with other imaging techniques and biochemical markers.
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Affiliation(s)
- Marinos Kosmopoulos
- 1 Division of Cardiology, Department of Medicine, University of Minnesota School of Medicine, Minneapolis, MN, USA
| | - Stavroula A Paschou
- 2 Division of Endocrinology and Diabetes, "Aghia Sophia" Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Julia Grapsa
- 3 Barts Heart Center, St Bartholomew's Hospital, London, UK
| | - Panagiotis Anagnostis
- 4 Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Andromachi Vryonidou
- 5 Department of Endocrinology and Diabetes, Hellenic Red Cross Hospital, Athens, Greece
| | - Dimitrios G Goulis
- 4 Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Gerasimos Siasos
- 6 First Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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Takafuji Y, Tatsumi K, Ishida M, Kawao N, Okada K, Matsuo O, Kaji H. Plasminogen activator inhibitor-1 deficiency suppresses osteoblastic differentiation of mesenchymal stem cells in mice. J Cell Physiol 2018; 234:9687-9697. [PMID: 30387130 DOI: 10.1002/jcp.27655] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 10/02/2018] [Indexed: 12/12/2022]
Abstract
Plasminogen activator inhibitor-1 (PAI-1) is known as an inhibitor of fibrinolytic system. Previous studies suggest that PAI-1 is involved in the pathogenesis of osteoporosis induced by ovariectomy, diabetes, and glucocorticoid excess in mice. However, the roles of PAI-1 in early-stage osteogenic differentiation have remained unknown. In the current study, we investigated the roles of PAI-1 in osteoblastic differentiation of mesenchymal stem cells (MSCs) using wild-type (WT) and PAI-1-deficient (PAI-1 KO) mice. PAI-1 mRNA levels were increased with time during osteoblastic differentiation of MSCs or mesenchymal ST-2 cells. However, the increased PAI-1 levels declined at the mineralization phase in the experiment using MC3T3-E1 cells. PAI-1 deficiency significantly blunted the expression of osteogenic gene, such as osterix and alkaline phosphatase enhanced by bone morphogenetic protein (BMP)-2 in bone marrow-derived MSCs (BM-MSCs), adipose-tissue-derived MSCs (AD-MSCs), and bone marrow stromal cells of mice. Moreover, a reduction in endogenous PAI-1 levels by small interfering RNA significantly suppressed the expression of osteogenic gene in ST-2 cells. Plasmin did not affect osteoblastic differentiation of AD-MSCs induced by BMP-2 with or without PAI-1 deficiency. PAI-1 deficiency and a reduction in endogenous PAI-1 levels did not affect the phosphorylations of receptor-specific Smads by BMP-2 and transforming growth factor-β in AD-MSCs and ST-2 cells, respectively. In conclusion, we first showed that PAI-1 is crucial for the differentiation of MSCs into osteoblasts in mice.
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Affiliation(s)
- Yoshimasa Takafuji
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Kohei Tatsumi
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Masayoshi Ishida
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Naoyuki Kawao
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Kiyotaka Okada
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Osamu Matsuo
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Hiroshi Kaji
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
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Liu DM, Mosialou I, Liu JM. Bone: Another potential target to treat, prevent and predict diabetes. Diabetes Obes Metab 2018; 20:1817-1828. [PMID: 29687585 DOI: 10.1111/dom.13330] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/16/2018] [Accepted: 04/18/2018] [Indexed: 12/30/2022]
Abstract
Type 2 diabetes mellitus is now a worldwide health problem with increasing prevalence. Mounting efforts have been made to treat, prevent and predict this chronic disease. In recent years, increasing evidence from mice and clinical studies suggests that bone-derived molecules modulate glucose metabolism. This review aims to summarize our current understanding of the interplay between bone and glucose metabolism and to highlight potential new means of therapeutic intervention. The first molecule recognized as a link between bone and glucose metabolism is osteocalcin (OCN), which functions in its active form, that is, undercarboxylated OCN (ucOC). ucOC acts in promoting insulin expression and secretion, facilitating insulin sensitivity, and favouring glucose and fatty acid uptake and utilization. A second bone-derived molecule, lipocalin2, functions in suppressing appetite in mice through its action on the hypothalamus. Osteocytes, the most abundant cells in bone matrix, are suggested to act on the browning of white adipose tissue and energy expenditure through secretion of bone morphogenetic protein 7 and sclerostin. The involvement of bone resorption in glucose homeostasis has also been examined. However, there is evidence indicating the implication of the receptor activator of nuclear factor κ-B ligand, neuropeptide Y, and other known and unidentified bone-derived factors that function in glucose homeostasis. We summarize recent advances and the rationale for treating, preventing and predicting diabetes by skeleton intervention.
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Affiliation(s)
- Dong-Mei Liu
- Department of Rheumatology, ZhongShan Hospital, FuDan University, Shanghai, China
| | - Ioanna Mosialou
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Jian-Min Liu
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Rui-jin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai Institute of Endocrine and Metabolic Diseases, Shanghai, China
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Lacombe J, Ferron M. VKORC1L1, An Enzyme Mediating the Effect of Vitamin K in Liver and Extrahepatic Tissues. Nutrients 2018; 10:nu10080970. [PMID: 30050002 PMCID: PMC6116193 DOI: 10.3390/nu10080970] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/18/2018] [Accepted: 07/24/2018] [Indexed: 12/25/2022] Open
Abstract
Vitamin K is an essential nutrient involved in the regulation of blood clotting and tissue mineralization. Vitamin K oxidoreductase (VKORC1) converts vitamin K epoxide into reduced vitamin K, which acts as the co-factor for the γ-carboxylation of several proteins, including coagulation factors produced by the liver. VKORC1 is also the pharmacological target of warfarin, a widely used anticoagulant. Vertebrates possess a VKORC1 paralog, VKORC1-like 1 (VKORC1L1), but until very recently, the importance of VKORC1L1 for protein γ-carboxylation and hemostasis in vivo was not clear. Here, we first review the current knowledge on the structure, function and expression pattern of VKORC1L1, including recent data establishing that, in the absence of VKORC1, VKORC1L1 can support vitamin K-dependent carboxylation in the liver during the pre- and perinatal periods in vivo. We then provide original data showing that the partial redundancy between VKORC1 and VKORC1L1 also exists in bone around birth. Recent studies indicate that, in vitro and in cell culture models, VKORC1L1 is less sensitive to warfarin than VKORC1. Genetic evidence is presented here, which supports the notion that VKORC1L1 is not the warfarin-resistant vitamin K quinone reductase present in the liver. In summary, although the exact physiological function of VKORC1L1 remains elusive, the latest findings clearly established that this enzyme is a vitamin K oxidoreductase, which can support γ-carboxylation in vivo.
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Affiliation(s)
- Julie Lacombe
- Integrative and Molecular Physiology research unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada.
| | - Mathieu Ferron
- Integrative and Molecular Physiology research unit, Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada.
- Department of Medicine and Molecular Biology Programs of the Faculty of Medicine, Université de Montréal, QC H3C 3J7, Canada.
- Division of Experimental Medicine, McGill University, Montréal, QC H4A 3J1, Canada.
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Han Y, You X, Xing W, Zhang Z, Zou W. Paracrine and endocrine actions of bone-the functions of secretory proteins from osteoblasts, osteocytes, and osteoclasts. Bone Res 2018; 6:16. [PMID: 29844945 PMCID: PMC5967329 DOI: 10.1038/s41413-018-0019-6] [Citation(s) in RCA: 300] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/21/2018] [Accepted: 04/16/2018] [Indexed: 12/17/2022] Open
Abstract
The skeleton is a dynamic organ that is constantly remodeled. Proteins secreted from bone cells, namely osteoblasts, osteocytes, and osteoclasts exert regulation on osteoblastogenesis, osteclastogenesis, and angiogenesis in a paracrine manner. Osteoblasts secrete a range of different molecules including RANKL/OPG, M-CSF, SEMA3A, WNT5A, and WNT16 that regulate osteoclastogenesis. Osteoblasts also produce VEGFA that stimulates osteoblastogenesis and angiogenesis. Osteocytes produce sclerostin (SOST) that inhibits osteoblast differentiation and promotes osteoclast differentiation. Osteoclasts secrete factors including BMP6, CTHRC1, EFNB2, S1P, WNT10B, SEMA4D, and CT-1 that act on osteoblasts and osteocytes, and thereby influenceaA osteogenesis. Osteoclast precursors produce the angiogenic factor PDGF-BB to promote the formation of Type H vessels, which then stimulate osteoblastogenesis. Besides, the evidences over the past decades show that at least three hormones or "osteokines" from bone cells have endocrine functions. FGF23 is produced by osteoblasts and osteocytes and can regulate phosphate metabolism. Osteocalcin (OCN) secreted by osteoblasts regulates systemic glucose and energy metabolism, reproduction, and cognition. Lipocalin-2 (LCN2) is secreted by osteoblasts and can influence energy metabolism by suppressing appetite in the brain. We review the recent progresses in the paracrine and endocrine functions of the secretory proteins of osteoblasts, osteocytes, and osteoclasts, revealing connections of the skeleton with other tissues and providing added insights into the pathogenesis of degenerative diseases affecting multiple organs and the drug discovery process.
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Affiliation(s)
- Yujiao Han
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Xiuling You
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Wenhui Xing
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Zhong Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
| | - Weiguo Zou
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031 China
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Matteucci E, Maroni P, Nicassio F, Ghini F, Bendinelli P, Desiderio MA. Microenvironment Stimuli HGF and Hypoxia Differently Affected miR-125b and Ets-1 Function with Opposite Effects on the Invasiveness of Bone Metastatic Cells: A Comparison with Breast Carcinoma Cells. Int J Mol Sci 2018; 19:ijms19010258. [PMID: 29337876 PMCID: PMC5796204 DOI: 10.3390/ijms19010258] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/04/2018] [Accepted: 01/09/2018] [Indexed: 12/14/2022] Open
Abstract
We examined the influence of microenvironment stimuli on molecular events relevant to the biological functions of 1833-bone metastatic clone and the parental MDA-MB231 cells. (i) In both the cell lines, hepatocyte growth factor (HGF) and the osteoblasts' biological products down regulated nuclear Ets-1-protein level in concomitance with endogenous miR-125b accumulation. In contrast, under hypoxia nuclear Ets-1 was unchanged, notwithstanding the miR-125b increase. (ii) Also, the 1833-cell invasiveness and the expression of Endothelin-1, the target gene of Ets-1/HIF-1, showed opposite patterns under HGF and hypoxia. We clarified the molecular mechanism(s) reproducing the high miR-125b levels with the mimic in 1833 cells. Under hypoxia, the miR-125b mimic maintained a basal level and functional Ets-1 protein, as testified by the elevated cell invasiveness. However, under HGF ectopic miR-125b downregulated Ets-1 protein and cell motility, likely involving an Ets-1-dominant negative form sensible to serum conditions; Ets-1-activity inhibition by HGF implicated HIF-1α accumulation, which drugged Ets-1 in the complex bound to the Endothelin-1 promoter. Altogether, 1833-cell exposure to HGF would decrease Endothelin-1 transactivation and protein expression, with the possible impairment of Endothelin-1-dependent induction of E-cadherin, and the reversion towards an invasive phenotype: this was favoured by Ets-1 overexpression, which inhibited HIF-1α expression and HIF-1 activity. (iii) In MDA-MB231 cells, HGF strongly and rapidly decreased Ets-1, hampering invasiveness and reducing Ets-1-binding to Endothelin-1 promoter; HIF-1α did not form a complex with Ets-1 and Endothelin-1-luciferase activity was unchanged. Overall, depending on the microenvironment conditions and endogenous miR-125b levels, bone-metastatic cells might switch from Ets-1-dependent motility towards colonization/growth, regulated by the balance between Ets-1 and HIF-1.
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Affiliation(s)
- Emanuela Matteucci
- Dipartimento di Scienze Biomediche per la Salute, Molecular Pathology Laboratory, Università degli Studi di Milano, Milano 20133, Italy.
| | - Paola Maroni
- Istituto Ortopedico Galeazzi, Scientific Institute for Research, Hospitalization and Health Care (IRCCS), Milano 20161, Italy.
| | - Francesco Nicassio
- Center for Genomic Science of IIT@SEMM, Istituto Italiano di Tecnologia (IIT), Milano 20139, Italy.
| | - Francesco Ghini
- Center for Genomic Science of IIT@SEMM, Istituto Italiano di Tecnologia (IIT), Milano 20139, Italy.
| | - Paola Bendinelli
- Dipartimento di Scienze Biomediche per la Salute, Molecular Pathology Laboratory, Università degli Studi di Milano, Milano 20133, Italy.
| | - Maria Alfonsina Desiderio
- Dipartimento di Scienze Biomediche per la Salute, Molecular Pathology Laboratory, Università degli Studi di Milano, Milano 20133, Italy.
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