1
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Frost K, Lewis JW, Jones SW, Edwards JR, Naylor AJ, McGettrick HM. The Species Effect: Differential Sphingosine-1-Phosphate Responses in the Bone in Human Versus Mouse. Int J Mol Sci 2024; 25:5118. [PMID: 38791156 PMCID: PMC11121697 DOI: 10.3390/ijms25105118] [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: 02/28/2024] [Revised: 04/29/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
The deterioration of osteoblast-led bone formation and the upregulation of osteoclast-regulated bone resorption are the primary causes of bone diseases, including osteoporosis. Numerous circulating factors play a role in bone homeostasis by regulating osteoblast and osteoclast activity, including the sphingolipid-sphingosine-1-phosphate (S1P). However, to date no comprehensive studies have investigated the impact of S1P activity on human and murine osteoblasts and osteoclasts. We observed species-specific responses to S1P in both osteoblasts and osteoclasts, where S1P stimulated human osteoblast mineralisation and reduced human pre-osteoclast differentiation and mineral resorption, thereby favouring bone formation. The opposite was true for murine osteoblasts and osteoclasts, resulting in more mineral resorption and less mineral deposition. Species-specific differences in osteoblast responses to S1P were potentially explained by differential expression of S1P receptor 1. By contrast, human and murine osteoclasts expressed comparable levels of S1P receptors but showed differential expression patterns of the two sphingosine kinase enzymes responsible for S1P production. Ultimately, we reveal that murine models may not accurately represent how human bone cells will respond to S1P, and thus are not a suitable model for exploring S1P physiology or potential therapeutic agents.
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Affiliation(s)
- Kathryn Frost
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK; (K.F.); (J.W.L.); (S.W.J.); (A.J.N.)
| | - Jonathan W. Lewis
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK; (K.F.); (J.W.L.); (S.W.J.); (A.J.N.)
| | - Simon W. Jones
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK; (K.F.); (J.W.L.); (S.W.J.); (A.J.N.)
| | - James R. Edwards
- Botnar Research Centre, University of Oxford, Oxford OX3 7LD, UK;
| | - Amy J. Naylor
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK; (K.F.); (J.W.L.); (S.W.J.); (A.J.N.)
| | - Helen M. McGettrick
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK; (K.F.); (J.W.L.); (S.W.J.); (A.J.N.)
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2
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Wille A, Weske S, von Wnuck Lipinski K, Wollnitzke P, Schröder NH, Thomas N, Nowak MK, Deister-Jonas J, Behr B, Keul P, Levkau B. Sphingosine-1-phosphate promotes osteogenesis by stimulating osteoblast growth and neovascularization in a vascular endothelial growth factor-dependent manner. J Bone Miner Res 2024; 39:357-372. [PMID: 38477738 PMCID: PMC11240155 DOI: 10.1093/jbmr/zjae006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 12/19/2023] [Accepted: 12/29/2023] [Indexed: 03/14/2024]
Abstract
Sphingosine-1-phosphate (S1P) plays multiple roles in bone metabolism and regeneration. Here, we have identified a novel S1P-regulated osteoanabolic mechanism functionally connecting osteoblasts (OBs) to the highly specialized bone vasculature. We demonstrate that S1P/S1PR3 signaling in OBs stimulates vascular endothelial growth factor a (VEGFa) expression and secretion to promote bone growth in an autocrine and boost osteogenic H-type differentiation of bone marrow endothelial cells in a paracrine manner. VEGFa-neutralizing antibodies and VEGF receptor inhibition by axitinib abrogated OB growth in vitro and bone formation in male C57BL/6J in vivo following S1P stimulation and S1P lyase inhibition, respectively. Pharmacological S1PR3 inhibition and genetic S1PR3 deficiency suppressed VEGFa production, OB growth in vitro, and inhibited H-type angiogenesis and bone growth in male mice in vivo. Together with previous work on the osteoanabolic functions of S1PR2 and S1PR3, our data suggest that S1P-dependent bone regeneration employs several nonredundant positive feedback loops between OBs and the bone vasculature. The identification of this yet unappreciated aspect of osteoanabolic S1P signaling may have implications for regular bone homeostasis as well as diseases where the bone microvasculature is affected such as age-related osteopenia and posttraumatic bone regeneration.
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Affiliation(s)
- Annalena Wille
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Sarah Weske
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Karin von Wnuck Lipinski
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Philipp Wollnitzke
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Nathalie H Schröder
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Nadine Thomas
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Melissa K Nowak
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Jennifer Deister-Jonas
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Björn Behr
- Department of Plastic Surgery, University Hospital BG Bergmannsheil, 44789 Bochum, Germany
| | - Petra Keul
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Bodo Levkau
- Institute of Molecular Medicine III, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
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3
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Seal A, Hughes M, Wei F, Pugazhendhi AS, Ngo C, Ruiz J, Schwartzman JD, Coathup MJ. Sphingolipid-Induced Bone Regulation and Its Emerging Role in Dysfunction Due to Disease and Infection. Int J Mol Sci 2024; 25:3024. [PMID: 38474268 DOI: 10.3390/ijms25053024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
The human skeleton is a metabolically active system that is constantly regenerating via the tightly regulated and highly coordinated processes of bone resorption and formation. Emerging evidence reveals fascinating new insights into the role of sphingolipids, including sphingomyelin, sphingosine, ceramide, and sphingosine-1-phosphate, in bone homeostasis. Sphingolipids are a major class of highly bioactive lipids able to activate distinct protein targets including, lipases, phosphatases, and kinases, thereby conferring distinct cellular functions beyond energy metabolism. Lipids are known to contribute to the progression of chronic inflammation, and notably, an increase in bone marrow adiposity parallel to elevated bone loss is observed in most pathological bone conditions, including aging, rheumatoid arthritis, osteoarthritis, and osteomyelitis. Of the numerous classes of lipids that form, sphingolipids are considered among the most deleterious. This review highlights the important primary role of sphingolipids in bone homeostasis and how dysregulation of these bioactive metabolites appears central to many chronic bone-related diseases. Further, their contribution to the invasion, virulence, and colonization of both viral and bacterial host cell infections is also discussed. Many unmet clinical needs remain, and data to date suggest the future use of sphingolipid-targeted therapy to regulate bone dysfunction due to a variety of diseases or infection are highly promising. However, deciphering the biochemical and molecular mechanisms of this diverse and extremely complex sphingolipidome, both in terms of bone health and disease, is considered the next frontier in the field.
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Affiliation(s)
- Anouska Seal
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
| | - Megan Hughes
- School of Biosciences, Cardiff University, Cardiff CF10 3AT, UK
| | - Fei Wei
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Abinaya S Pugazhendhi
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Christopher Ngo
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jonathan Ruiz
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | | | - Melanie J Coathup
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
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4
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González-Aretia D, Hernández-Coronado CG, Guzmán A, Medina-Moctezuma ZB, Gutiérrez CG, Rosales-Torres AM. Sphingosine-1-phosphate mediates FSH-induced cell viability but not steroidogenesis in bovine granulosa cells. Theriogenology 2024; 213:90-96. [PMID: 37820497 DOI: 10.1016/j.theriogenology.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/02/2023] [Accepted: 10/05/2023] [Indexed: 10/13/2023]
Abstract
Follicle-stimulating hormone (FSH) stimulates the proliferation, survival, and estradiol synthesis of granulosa cells by binding to their G protein-coupled receptors. Although FSH activates sphingosine kinase-1 (SPHK1) to induce sphingosine-1-phosphate (S1P) synthesis, which is required to mediate the proliferative and survival effect of this gonadotrophin, the mechanisms, and the role of S1P in estradiol synthesis have not been reported. This study aimed to evaluate the importance of FSH-induced S1P synthesis as a mediator of the effects of this gonadotrophin on granulosa cell viability and steroidogenesis and to determine if FSH-induced S1P synthesis depends on estradiol, cAMP, PKA, or PKC. To achieve these objectives, we tested the effects of FSH, a sphingosine kinase-1 inhibitor (SKI-178), estradiol and inhibitors of aromatase, cAMP, PKA, and PKC (Formestane, MDL-12330A, H-89 dihydrochloride hydrate and Calphostin C respectively), on granulosa cell viability, S1P and estradiol production, and the mRNA expression of CYP19A1 and STAR in four in vitro culture experiments. The addition of FSH (1 ng/mL) increased (P < 0.05) granulosa cells number and S1P concentration in the culture media. Conversely, the addition of SKI-178 (10 μM) reduced (P < 0.05) S1P concentration negating the effect of FSH on cell viability. Inhibition of PKC and PKA, but not cAMP, reduced (P < 0.05) S1P secretion of FSH treated granulosa cells. It is important to note that the reduction in S1P secretion was strong (49 %) with the use of the PKC inhibitor. The use of formestane (10 μg) did not modify (P > 0.05) S1P secretion in FSH-treated cells; however, the addition of 5 or 10 ng/mL of estradiol increased (P < 0.05) S1P secretion. Finally, FSH increased (P < 0.05) estradiol concentration in the culture media, but this effect was not blocked by the inhibition of S1P synthesis. Similarly, FSH, SKI-178 or their combination did not modify the mRNA expression of CYP19A1 and STAR. In conclusion, S1P synthesis is stimulated FSH in granulosa cells and mediated mainly by PKC. S1P in turn promotes the granulosa cell viability, however, this does not influence estradiol synthesis. Additionally, estradiol synthesis induced by FSH is not essential for S1P synthesis, however high estradiol concentration may stimulate S1P production by granulosa cells.
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Affiliation(s)
- David González-Aretia
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Ciudad de México, Mexico
| | | | - Adrián Guzmán
- Departamento Producción Agrícola y Animal, Universidad Autónoma Metropolitana unidad Xochimilco, Ciudad de México, Mexico
| | | | - Carlos G Gutiérrez
- Departamento de Reproducción, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Ana María Rosales-Torres
- Departamento Producción Agrícola y Animal, Universidad Autónoma Metropolitana unidad Xochimilco, Ciudad de México, Mexico.
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5
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Wagner JM, Wille A, Fueth M, Weske S, Lotzien S, Reinkemeier F, Wallner C, Sogorski A, Dittfeld S, Becerikli M, Schildhauer TA, Lehnhardt M, Levkau B, Behr B. Pharmacological elevation of sphingosine-1-phosphate by S1P lyase inhibition accelerates bone regeneration after post-traumatic osteomyelitis. J Cell Mol Med 2023; 27:3786-3795. [PMID: 37710406 PMCID: PMC10718149 DOI: 10.1111/jcmm.17952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/15/2023] [Accepted: 09/01/2023] [Indexed: 09/16/2023] Open
Abstract
Posttraumatic osteomyelitis and the ensuing bone defects are a debilitating complication after open fractures with little therapeutic options. We have recently identified potent osteoanabolic effects of sphingosine-1-phosphate (S1P) signalling and have now tested whether it may beneficially affect bone regeneration after infection. We employed pharmacological S1P lyase inhibition by 4-deoxypyrodoxin (DOP) to raise S1P levels in vivo in an unicortical long bone defect model of posttraumatic osteomyelitis in mice. In a translational approach, human bone specimens of clinical osteomyelitis patients were treated in organ culture in vitro with DOP. Bone regeneration was assessed by μCT, histomorphometry, immunohistology and gene expression analysis. The role of S1P receptors was addressed using S1PR3 deficient mice. Here, we present data that DOP treatment markedly enhanced osteogenesis in posttraumatic osteomyelitis. This was accompanied by greatly improved osteoblastogenesis and enhanced angiogenesis in the callus accompanied by osteoclast-mediated bone remodelling. We also identified the target of increased S1P to be the S1PR3 as S1PR3-/- mice showed no improvement of bone regeneration by DOP. In the human bone explants, bone mass significantly increased along with enhanced osteoblastogenesis and angiogenesis. Our data suggest that enhancement of S1P/S1PR3 signalling may be a promising therapeutic target for bone regeneration in posttraumatic osteomyelitis.
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Affiliation(s)
- Johannes M. Wagner
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
- Department of Trauma Surgery and General SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Annalena Wille
- Institute of Molecular Medicine IIIUniversity Hospital Düsseldorf and Heinrich Heine Universität DüsseldorfDüsseldorfGermany
| | - Maria Fueth
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Sarah Weske
- Institute of Molecular Medicine IIIUniversity Hospital Düsseldorf and Heinrich Heine Universität DüsseldorfDüsseldorfGermany
| | - Sebastian Lotzien
- Department of Trauma Surgery and General SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Felix Reinkemeier
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Christoph Wallner
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Alexander Sogorski
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Stephanie Dittfeld
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Mustafa Becerikli
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Thomas A. Schildhauer
- Department of Trauma Surgery and General SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Marcus Lehnhardt
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
| | - Bodo Levkau
- Institute of Molecular Medicine IIIUniversity Hospital Düsseldorf and Heinrich Heine Universität DüsseldorfDüsseldorfGermany
| | - Björn Behr
- Department of Plastic SurgeryBG University Hospital Bergmannsheil BochumBochumGermany
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6
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Frost K, Naylor AJ, McGettrick HM. The Ying and Yang of Sphingosine-1-Phosphate Signalling within the Bone. Int J Mol Sci 2023; 24:ijms24086935. [PMID: 37108099 PMCID: PMC10139073 DOI: 10.3390/ijms24086935] [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: 02/06/2023] [Revised: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Bone remodelling is a highly active and dynamic process that involves the tight regulation of osteoblasts, osteoclasts, and their progenitors to allow for a balance of bone resorption and formation to be maintained. Ageing and inflammation are risk factors for the dysregulation of bone remodelling. Once the balance between bone formation and resorption is lost, bone mass becomes compromised, resulting in disorders such as osteoporosis and Paget's disease. Key molecules in the sphingosine-1-phosphate signalling pathway have been identified for their role in regulating bone remodelling, in addition to its more recognised role in inflammatory responses. This review discusses the accumulating evidence for the different, and, in certain circumstances, opposing, roles of S1P in bone homeostasis and disease, including osteoporosis, Paget's disease, and inflammatory bone loss. Specifically, we describe the current, often conflicting, evidence surrounding S1P function in osteoblasts, osteoclasts, and their precursors in health and disease, concluding that S1P may be an effective biomarker of bone disease and also an attractive therapeutic target for disease.
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Affiliation(s)
- Kathryn Frost
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
| | - Amy J Naylor
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
| | - Helen M McGettrick
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2TT, UK
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7
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Yang C, Liu Y, Wang Z, Lin M, Liu C. Controlled mechanical loading improves bone regeneration by regulating type H vessels in a S1Pr1-dependent manner. FASEB J 2022; 36:e22530. [PMID: 36063128 DOI: 10.1096/fj.202200339rrr] [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: 03/01/2022] [Revised: 08/04/2022] [Accepted: 08/22/2022] [Indexed: 11/11/2022]
Abstract
Despite the best treatment, approximately 10% of fractures still face undesirable repair and result in delayed unions or non-unions. Dynamic mechanical stimulation promotes bone formation, when applied at the correct time frame, with optimal loading magnitude, frequency, and repetition. Controlled mechanical loading significantly increases osteogenic cells during the matrix deposition phase of bone repair. In the bone defect, the blood vessel network guides the initial bone formation activities. A unique blood vessel subtype (Type H) exists in bone, which expresses high levels of CD31 and endomucin, and functions to couple angiogenesis and osteogenesis. However, how this form of controlled mechanical loading regulates the Type H vessels and promotes bone formation is still not clear. Sphingosine 1-phosphate (S1P) participates in the bone anabolic process and is a key regulator of the blood vessel. Its receptor, sphingosine 1-phosphate receptor 1 (S1Pr1), is a mechanosensitive protein that regulates vascular integrity. Therefore, we hypothesis that controlled anabolic mechanical loading promotes bone repair by acting on Type H vessels. To study the effect of S1Pr1 on loading induced-bone repair, we utilized a stabilized tibial defect model, which allows for the application of anabolic mechanical loading. Mechanical loading upregulated S1Pr1 within the entire defect, with up to 80% expressed in blood vessels, as observed by deep tissue imaging. Additionally, S1Pr1 antagonism by W146 inhibited the anabolic effects of mechanical loading. We showed that mechanical loading or activating S1Pr1 could induce YAP nuclear translocation, a key regulator in the cell's mechanical response, in endothelial cells (ECs) in vitro. Inhibition of S1Pr1 in endothelial cells by siRNA reduced loading-induced YAP nuclear translocation and expressions of angiogenic genes. In vivo, YAP nuclear translocation in Type H vessels was up-regulated after mechanical loading but was inhibited by antagonizing S1Pr1. S1Pr1 agonist, FTY720, increased bone volume and Type H vessel volume, similar to that of mechanical stimulation. In conclusion, controlled anabolic mechanical loading enhanced bone formation mainly through Type H vessels in a S1Pr1-dependent manner.
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Affiliation(s)
- Chengyu Yang
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China.,Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Yang Liu
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China.,Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Ziyan Wang
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China.,Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Minmin Lin
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China.,Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Chao Liu
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China.,Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
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8
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Gao P, Zhang S, Zhang X, Xu C, Chen L, Fan L, Ren J, Lin Q, Xiang B, Ren T. S1PR1 regulates NDV-induced IL-1β expression via NLRP3/caspase-1 inflammasome. Vet Res 2022; 53:58. [PMID: 35854395 PMCID: PMC9294853 DOI: 10.1186/s13567-022-01078-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/19/2022] [Indexed: 11/10/2022] Open
Abstract
Newcastle disease (ND) is an acute, febrile, and highly contagious disease caused by the Newcastle disease virus (NDV), an important pathogen harmful to domestic poultry. Virulent NDV strain infection induces IL-1β expression and along with strong inflammatory response, ultimately results in death. Inhibition or overexpression of S1PR1, an important target for inflammatory disease treatment, regulates IL-1β expression, suggesting that S1PR1 may alter the degree of the inflammatory response induced by NDV infection by regulating pro-inflammatory cytokine expression. However, the molecular mechanism by which S1PR1 regulates IL-1β expression remains unclear. Here, we explore the expression and tissue distribution of S1PR1 after NDV infection and found that S1PR1 expression increased in the lungs, bursa of Fabricius, and DF-1. IL-1β expression induced by NDV was increased following treatment of cells with the S1PR1-specific agonist, SEW2871. In contrast, IL-1β expression induced by NDV was decreased after cells were treated with the S1PR1 inhibitor W146, suggesting that S1PR1 promotes NDV-induced IL-1β expression. Further investigation demonstrated that NDV induced IL-1β expression through p38, JNK/MAPK, and NLRP3/caspase-1 signaling molecules and S1PR1 affected the expression of IL-1β by activating the NLRP3/caspase-1 inflammasome but had no significant effect on p38 and JNK/MAPK. Our study shows that NDV infection promotes S1PR1 expression and induces IL-1β expression through p38, JNK/MAPK, and NLRP3/caspase-1 inflammasomes and that S1PR1 regulates IL-1β expression mainly through the NLRP3/caspase-1 inflammasome.
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Affiliation(s)
- Pei Gao
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Postdoctoral Research Base, Henan Institute of Science and Technology, Xinxiang, China.,Postdoctoral Research Base, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Shiyuan Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Xinxin Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Chenggang Xu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou, China
| | - Libin Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou, China
| | - Lei Fan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou, China
| | - Jinlian Ren
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou, China
| | - Qiuyan Lin
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, Guangzhou, China.,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China.,Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou, China
| | - Bin Xiang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China. .,College of Veterinary Medicine, Yunnan Agricultural University, Kunming, China.
| | - Tao Ren
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China. .,Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, Guangzhou, China. .,National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou, China. .,Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Guangzhou, China.
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9
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Zhang L, Dong Y, Wang Y, Hu W, Dong S, Chen Y. Sphingosine-1-phosphate (S1P) receptors: Promising drug targets for treating bone-related diseases. J Cell Mol Med 2020; 24:4389-4401. [PMID: 32155312 PMCID: PMC7176849 DOI: 10.1111/jcmm.15155] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/22/2020] [Accepted: 02/01/2020] [Indexed: 12/20/2022] Open
Abstract
Sphingosine-1-phosphate (S1P) is a natural bioactive lipid molecule and a common first or second messenger in the cardiovascular and immune systems. By binding with its receptors, S1P can serve as mediator of signalling during cell migration, differentiation, proliferation and apoptosis. Although the predominant role of S1P in bone regeneration has been noted in many studies, this role is not as well-known as its roles in the cardiovascular and immune systems. In this review, we summarize previous research on the role of S1P receptors (S1PRs) in osteoblasts and osteoclasts. In addition, S1P is regarded as a bridge between bone resorption and formation, which brings hope to patients with bone-related diseases. Finally, we discuss S1P and its receptors as therapeutic targets for treating osteoporosis, inflammatory osteolysis and bone metastasis based on the biological effects of S1P in osteoclastic/osteoblastic cells, immune cells and tumour cells.
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Affiliation(s)
- Lincheng Zhang
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China.,Battalion One of Basic Medical Sciences, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yutong Dong
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China.,Battalion One of Basic Medical Sciences, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yiran Wang
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wenhui Hu
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Shiwu Dong
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University (Army Medical University), Chongqing, China.,Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yueqi Chen
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China.,Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
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El Jamal A, Briolay A, Mebarek S, Le Goff B, Blanchard F, Magne D, Brizuela L, Bougault C. Cytokine-Induced and Stretch-Induced Sphingosine 1-Phosphate Production by Enthesis Cells Could Favor Abnormal Ossification in Spondyloarthritis. J Bone Miner Res 2019; 34:2264-2276. [PMID: 31373726 DOI: 10.1002/jbmr.3844] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/11/2019] [Accepted: 07/19/2019] [Indexed: 12/12/2022]
Abstract
Spondyloarthritis (SpA) is a common rheumatic disease characterized by enthesis inflammation (enthesitis) and ectopic ossification (enthesophytes). The current pathogenesis model suggests that inflammation and mechanical stress are both strongly involved in SpA pathophysiology. We have previously observed that the levels of sphingosine 1-phosphate (S1P), a bone anabolic molecule, were particularly high in SpA patients' serum compared to healthy donors. Therefore, we wondered how this deregulation was related to SpA molecular mechanisms. Mouse primary osteoblasts, chondrocytes, and tenocytes were used as cell culture models. The sphingosine kinase 1 (Sphk1) gene expression and S1P secretion were significantly enhanced by cyclic stretch in osteoblasts and chondrocytes. Further, TNF-α and IL-17, cytokines implicated in enthesitis, increased Sphk1 mRNA in chondrocytes in an additive manner when combined to stretch. The immunochemistry on mouse ankles showed that sphingosine kinase 1 (SK1) was localized in some chondrocytes; the addition of a pro-inflammatory cocktail augmented Sphk1 expression in cultured ankles. Subsequently, fingolimod was used to block S1P metabolism in cell cultures. It inhibited S1P receptors (S1PRs) signaling and SK1 and SK2 activity in both osteoblasts and chondrocytes. Fingolimod also reduced S1PR-induced activation by SpA patients' synovial fluid (SF), demonstrating that the stimulation of chondrocytes by SFs from SpA patients involves S1P. In addition, when the osteogenic culture medium was supplemented with fingolimod, alkaline phosphatase activity, matrix mineralization, and bone formation markers were significantly reduced in osteoblasts and hypertrophic chondrocytes. Osteogenic differentiation was accompanied by an increase in S1prs mRNA, especially S1P1/3 , but their contribution to S1P-impact on mineralization seemed limited. Our results suggest that S1P might be overproduced in SpA enthesis in response to cytokines and mechanical stress, most likely by chondrocytes. Moreover, S1P could locally favor the abnormal ossification of the enthesis; therefore, blocking the S1P metabolic pathway could be a potential therapeutic approach for the treatment of SpA. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Alaeddine El Jamal
- Univ Lyon, Univ Claude Bernard Lyon 1 (UCBL), CNRS, UMR5246, Lyon, France
| | - Anne Briolay
- Univ Lyon, Univ Claude Bernard Lyon 1 (UCBL), CNRS, UMR5246, Lyon, France
| | - Saida Mebarek
- Univ Lyon, Univ Claude Bernard Lyon 1 (UCBL), CNRS, UMR5246, Lyon, France
| | - Benoit Le Goff
- INSERM UMR1238, Nantes University, Nantes, France.,Rheumatology Department, Nantes University, Nantes, France
| | | | - David Magne
- Univ Lyon, Univ Claude Bernard Lyon 1 (UCBL), CNRS, UMR5246, Lyon, France
| | - Leyre Brizuela
- Univ Lyon, Univ Claude Bernard Lyon 1 (UCBL), CNRS, UMR5246, Lyon, France
| | - Carole Bougault
- Univ Lyon, Univ Claude Bernard Lyon 1 (UCBL), CNRS, UMR5246, Lyon, France
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11
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Li G, Jiang X, Liu L, Liu X, Liu H, Zhang Z. Effect of estradiol on high glucose‑induced osteoblast injury. Mol Med Rep 2019; 20:3019-3026. [PMID: 31432111 PMCID: PMC6755179 DOI: 10.3892/mmr.2019.10552] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 04/12/2019] [Indexed: 01/06/2023] Open
Abstract
Estradiol (E2) serves an important role in the changes of postmenopausal bone turnover rate and the development of osteoporosis. The present study aimed to investigate the effects of E2 on high glucose (HG)‑induced osteoblast injury. Cell Counting Kit‑8 was used to determine cell viability. Reverse transcription‑quantitative PCR (RT‑qPCR) and western blotting was used to analyze the mRNA and protein expression levels of osteocalcin, Runt‑related transcription factor 2 (Runx2), nuclear factor E2‑related factor 2 (Nrf2) and heme oxygenase‑1 (HO1). Flow cytometry was performed to analyze apoptosis. The results revealed that cell viability was lower in cells treated with HG (100, 200 or 300 mg/dl) compared with the control group. Cell viability was decreased in cells treated with 200 mg/dl HG on days 3, 5 and 7. In addition, cell viability was increased by 0.1 µM E2. E2 with HG co‑treatment increased cell viability, osteocalcin and Runx2 mRNA expression levels and nuclear Nrf2 and HO1 protein expression levels compared with the HG‑only group. All these changes, with the exception of Runx2, were reversed by silencing Nrf2 expression using small interfering (si)RNA (siNrf2). Additionally, apoptosis was reduced by E2 in HG‑treated cells, which was reversed by siNrf2 transfection. These results demonstrated that E2 may prevent HG‑induced osteoblast injury by activating Nrf2/HO1 signaling pathways.
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Affiliation(s)
- Guangrun Li
- Department of Spinal Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
| | - Xiaofeng Jiang
- Department of Joint Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
| | - Liping Liu
- Department of Allergy, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
| | - Xiaoyang Liu
- Department of Spinal Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
| | - Hongtao Liu
- Department of Spinal Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
| | - Zuofu Zhang
- Department of Joint Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
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