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Kornsuthisopon C, Photichailert S, Nowwarote N, Tompkins KA, Osathanon T. Wnt signaling in dental pulp homeostasis and dentin regeneration. Arch Oral Biol 2021; 134:105322. [PMID: 34844087 DOI: 10.1016/j.archoralbio.2021.105322] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Wnt signaling is crucial in the physiological and pathological processes of dental pulp tissues. The present study described the effects of Wnt signaling in dental pulp homeostasis and regeneration. DESIGN Publications in Pubmed and Scopus database were searched, and a narrative review was performed. The roles of Wnt signaling in dental pulp tissue were reviewed and discussed. RESULT In vitro and in vivo evidence have confirmed the involvement of Wnt signaling in tooth development, dental pulp homeostasis, and physiological processes in dental pulp responses. Manipulating Wnt signaling components generates beneficial effects on pulp healing, dentin repair, and epigenetic regulation related to stemness maintenance, implying that Wnt signaling is a potential therapeutic target for future clinical dental applications. Additionally, an overview of the epigenetic control of dental pulp stem cells by Wnt signaling is provided. CONCLUSION This review provides basic knowledge on Wnt signaling and outlines its functions in dental pulp tissues, focusing on their potential as therapeutic treatments by targeting the Wnt signaling pathway.
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Affiliation(s)
- Chatvadee Kornsuthisopon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Suphalak Photichailert
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nunthawan Nowwarote
- Centre de Recherche des Cordeliers, Universite de Paris, Sorbonne Universite, INSERM UMRS 1138, Molecular Oral Pathophysiology and Universite de Paris, Dental Faculty Garanciere, Oral Biology Department, Paris F-75006, France
| | - Kevin A Tompkins
- Office of Research Affairs, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thanaphum Osathanon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand; Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand.
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Affiliation(s)
- Isabella Albanese
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Kashif Khan
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Bianca Barratt
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Hamood Al-Kindi
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
| | - Adel Schwertani
- Division of Cardiology and Division of Cardiac Surgery, McGill University Health Centre, Montreal, Quebec, Canada
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Sindhavajiva PR, Sastravaha P, Arksornnukit M, Pavasant P. Intermittent compressive force induces human mandibular-derived osteoblast differentiation via WNT/β-catenin signaling. J Cell Biochem 2018; 119:3474-3485. [PMID: 29143994 DOI: 10.1002/jcb.26519] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/13/2017] [Indexed: 02/02/2023]
Abstract
Mechanical force induces an efflux of ATP that regulates osteoblast differentiation. However, the effect of mechanical force-induced ATP efflux on WNT/β-catenin signaling remains unclarified. The aim of this study was to investigate the effect of intermittent compressive force (ICF) and ICF-induced extracellular ATP on osteoblast differentiation via WNT/β-catenin signaling in human mandibular-derived osteoblast precursors (hMOBPs). The hMOBPs were subjected to ICF (1.5 g/cm2 , 0.3 Hz) for 20 h. To investigate the role of ATP, Apyrase (0.5 units/mL), an enzyme that hydrolyzes ATP, was added 30 min before ICF was applied. The extracellular ATP levels were measured immediately after ICF was removed. The mRNA expression of osteogenic related genes, including WNT was evaluated via quantitative real time polymerase chain reaction. In vitro mineralization was determined by Alizarin Red S staining. The localization of β-catenin was detected using immunofluorescence staining and lentiviral-TOP-dGFP reporter assay. The results demonstrated that ICF increased ATP efflux and in vitro mineralization by hMOBPs. In addition, OSX, ALP, and WNT3A mRNA expression and β-catenin nuclear translocation increased when ICF was applied. The upregulation of these genes was reduced by Apyrase, suggesting the role of ICF-induced ATP on osteoblast differentiation. Notably, ICF altered the mRNA expression of purinergic 2X receptors (P2XRs). A P2X1R antagonist (NF449) downregulated ICF-induced WNT3A, OSX, and ALP mRNA expression. Moreover, when 25 μM α, β-meATP, a P2X1R agonist, was added, WNT3A, and OSX expression increased. In conclusion, our results demonstrate that ICF-induced ATP enhanced hMOBP differentiation. This enhancement was associated with WNT/β-catenin signaling and P2X1R activation.
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Affiliation(s)
- Pimrumpai R Sindhavajiva
- Graduate Program in Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Mineralized Tissue Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Panunn Sastravaha
- Department of Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Mansuang Arksornnukit
- Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Prasit Pavasant
- Mineralized Tissue Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
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Sindhavajiva PR, Sastravaha P, Arksornnukit M, Pavasant P. Purinergic 2X7 receptor activation regulates WNT signaling in human mandibular-derived osteoblasts. Arch Oral Biol 2017; 81:167-174. [PMID: 28549259 DOI: 10.1016/j.archoralbio.2017.05.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/16/2017] [Accepted: 05/16/2017] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Purinergic 2X7 receptor (P2X7R) activation modulates in vitro mineralization by primary rat and human osteoblasts. However, the detailed mechanism of how P2X7R activation affects primary human osteoblasts remains unclear. The aim of this study was to investigate the effect of P2X7R activation on human mandibular-derived osteoblast (hMOB) differentiation. DESIGN Primary human osteoblasts were obtained from non-pathologic mandibular bone from healthy patients. The hMOBs were cultured in osteogenic medium with or without 0.5-5μM 2'(3')-O-(4-benzoyl) benzoyl-ATP (BzATP), a selective P2X7R agonist. The mRNA expression of osteogenic differentiation markers and WNT-signaling molecules was investigated by quantitative real time polymerase chain reaction. In vitro mineral deposition was determined by Alizarin Red S staining. Transfection of small interfering RNA was performed to confirm the effect of P2X7R activation. WNT/β-catenin signaling was detected by immunofluorescence staining for β-catenin. RESULTS BzATP inhibited osteogenic medium-induced RUNX2 and OSX mRNA expression in hMOBs. Moreover, BzATP significantly retarded in vitro mineralization. These findings indicated that BzATP/P2X7R activation inhibited hMOB differentiation. Interestingly, reduced WNT3A mRNA expression and blockage of osteogenic medium-induced β-catenin nuclear translocation were also found. These data suggested that WNT signaling might be a target of P2X7R-regulated osteogenic differentiation. Furthermore, when recombinant human WNT3A was added to the BzATP-treated group, it rescued the reduced RUNX2 and OSX expression, and in vitro mineralization. CONCLUSION Our results demonstrate that P2X7R activation by BzATP inhibits hMOB differentiation. This inhibitory effect was associated with inhibition of the WNT/β-catenin signaling pathway.
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Affiliation(s)
- Pimrumpai Rochanakit Sindhavajiva
- Graduate Program in Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand; Mineralized Tissue Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Panunn Sastravaha
- Department of Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Mansuang Arksornnukit
- Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Prasit Pavasant
- Mineralized Tissue Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand; Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand.
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Gao J, Liu J, Yang Y, Liang J, Xie J, Li S, Zheng G, Xie L, Zhang R. Identification and expression characterization of three Wnt signaling genes in pearl oyster ( Pinctada fucata ). Comp Biochem Physiol B Biochem Mol Biol 2016; 196-197:92-101. [DOI: 10.1016/j.cbpb.2016.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 02/26/2016] [Accepted: 03/04/2016] [Indexed: 11/28/2022]
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Schroder EA, Harfmann BD, Zhang X, Srikuea R, England JH, Hodge BA, Wen Y, Riley LA, Yu Q, Christie A, Smith JD, Seward T, Wolf Horrell EM, Mula J, Peterson CA, Butterfield TA, Esser KA. Intrinsic muscle clock is necessary for musculoskeletal health. J Physiol 2015; 593:5387-404. [PMID: 26486627 PMCID: PMC4704520 DOI: 10.1113/jp271436] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 10/12/2015] [Indexed: 12/21/2022] Open
Abstract
KEY POINTS The endogenous molecular clock in skeletal muscle is necessary for maintenance of phenotype and function. Loss of Bmal1 solely from adult skeletal muscle (iMSBmal1(-/-) ) results in reductions in specific tension, increased oxidative fibre type and increased muscle fibrosis with no change in feeding or activity. Disruption of the molecular clock in adult skeletal muscle is sufficient to induce changes in skeletal muscle similar to those seen in the Bmal1 knockout mouse (Bmal1(-/-) ), a model of advanced ageing. iMSBmal1(-/-) mice develop increased bone calcification and decreased joint collagen, which in combination with the functional changes in skeletal muscle results in altered gait. This study uncovers a fundamental role for the skeletal muscle clock in musculoskeletal homeostasis with potential implications for ageing. ABSTRACT Disruption of circadian rhythms in humans and rodents has implicated a fundamental role for circadian rhythms in ageing and the development of many chronic diseases including diabetes, cardiovascular disease, depression and cancer. The molecular clock mechanism underlies circadian rhythms and is defined by a transcription-translation feedback loop with Bmal1 encoding a core molecular clock transcription factor. Germline Bmal1 knockout (Bmal1 KO) mice have a shortened lifespan, show features of advanced ageing and exhibit significant weakness with decreased maximum specific tension at the whole muscle and single fibre levels. We tested the role of the molecular clock in adult skeletal muscle by generating mice that allow for the inducible skeletal muscle-specific deletion of Bmal1 (iMSBmal1). Here we show that disruption of the molecular clock, specifically in adult skeletal muscle, is associated with a muscle phenotype including reductions in specific tension, increased oxidative fibre type, and increased muscle fibrosis similar to that seen in the Bmal1 KO mouse. Remarkably, the phenotype observed in the iMSBmal1(-/-) mice was not limited to changes in muscle. Similar to the germline Bmal1 KO mice, we observed significant bone and cartilage changes throughout the body suggesting a role for the skeletal muscle molecular clock in both the skeletal muscle niche and the systemic milieu. This emerging area of circadian rhythms and the molecular clock in skeletal muscle holds the potential to provide significant insight into intrinsic mechanisms of the maintenance of muscle quality and function as well as identifying a novel crosstalk between skeletal muscle, cartilage and bone.
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Affiliation(s)
- Elizabeth A Schroder
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Brianna D Harfmann
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Xiping Zhang
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Ratchakrit Srikuea
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | | | - Brian A Hodge
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Yuan Wen
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Lance A Riley
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Qi Yu
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Alexander Christie
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Jeffrey D Smith
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Tanya Seward
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
| | - Erin M Wolf Horrell
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - Jyothi Mula
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- College of Health Sciences, University of Kentucky, Lexington, KY, USA
| | - Charlotte A Peterson
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- College of Health Sciences, University of Kentucky, Lexington, KY, USA
| | - Timothy A Butterfield
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- College of Health Sciences, University of Kentucky, Lexington, KY, USA
| | - Karyn A Esser
- Center for Muscle Biology, University of Kentucky, Lexington, KY, USA
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, USA
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Yang Y, Ge Y, Chen G, Yan Z, Yu M, Feng L, Jiang Z, Guo W, Tian W. Hertwig's epithelial root sheath cells regulate osteogenic differentiation of dental follicle cells through the Wnt pathway. Bone 2014; 63:158-65. [PMID: 24657304 DOI: 10.1016/j.bone.2014.03.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 03/09/2014] [Accepted: 03/12/2014] [Indexed: 02/05/2023]
Abstract
The development of periodontal ligament-cementum complex (PLCC) originates from the interaction between epithelial cells of Hertwig's epithelial root sheath (HERS) and mesenchymal cells of the dental follicle. While previous studies have suggested that the Wnt pathway is involved in osteogenic differentiation of dental follicle cells (DFCs) during tooth root development, its involvement in the interaction between DFCs and HERS cells (HERSCs) in tooth root mineralization remains unclear. Here, we investigated the hypothesis that HERSCs control osteogenic differentiation of DFCs via the Wnt pathway. We found that during co-culture with HERSCs, DFCs exhibited a greater tendency to form mineralized nodules. Moreover, under these conditions, DFCs expressed high levels of cementoblast/osteoblast differentiation-related markers, such as bone sialoprotein (BSP) and osteocalcin (OCN), the periodontal ligament phenotype-related gene type I collagen (COL1), and β-catenin (CTNNB1), a core player in the canonical Wnt pathway. In contrast, expression in DFCs of alkaline phosphatase (ALP) was greatly decreased in the presence of HERSCs. Expression of CTNNB1 in DFCs was stimulated by Wnt3a, a representative canonical member of the Wnt family of ligands, but suppressed by Dickkopf1 (DKK1), a Wnt/CTNNB1 signaling inhibitor. Furthermore, in the presence of treated dentin matrix (TDM), differentiation of DFCs was enhanced by Wnt3a when they were in direct contact with HERSCs, but was curtailed by DKK1. Taken together, these results indicate that during tooth root formation, HERSCs induce osteogenic differentiation of DFCs in a process involving the Wnt pathway and the dentin matrix. Our study not only contributes to our understanding of tooth root development and diseases of tooth root mineralization, but also proffers a novel potential strategy for controlling mineralization during tooth root regeneration.
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Affiliation(s)
- Yaling Yang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yaneng Ge
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Guoqing Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Zhiling Yan
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Mei Yu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Lian Feng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Zongting Jiang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Weihua Guo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Pedodontics, West China School of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, 610041 Sichuan Province, China.
| | - Weidong Tian
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China.
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