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Martín-Hernández D, Martínez M, Robledo-Montaña J, Muñoz-López M, Virto L, Ambrosio N, Marín MJ, Montero E, Herrera D, Sanz M, Leza JC, Figuero E, García-Bueno B. Neuroinflammation related to the blood-brain barrier and sphingosine-1-phosphate in a pre-clinical model of periodontal diseases and depression in rats. J Clin Periodontol 2023; 50:642-656. [PMID: 36644813 DOI: 10.1111/jcpe.13780] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/17/2023]
Abstract
AIM To explore the potential mechanisms of neuroinflammation (microglia, blood-brain barrier [BBB] permeability, and the sphingosine-1-phosphate [S1P] pathways) resulting from the association between periodontitis and depression in rats. MATERIALS AND METHODS This pre-clinical in vivo experimental study used Wistar rats, in which experimental periodontitis (P) was induced by using oral gavages with Porphyromonas gingivalis and Fusobacterium nucleatum. Then, a chronic mild stress (CMS) model was implemented to induce a depressive-like behaviour, resulting in four groups: P with CMS (P+CMS+), P without CMS (P+CMS-), CMS without P (P-CMS+), and control (P-CMS-). After harvesting brain samples, protein/mRNA expression analyses and fluorescence immunohistochemistry were performed in the frontal cortex (FC). Results were analysed by ANOVA. RESULTS CMS exposure increased the number of microglia (an indicator of neuroinflammation) in the FC. In the combined model (P+CMS+), there was a decrease in the expression of tight junction proteins (zonula occludens-1 [ZO-1], occludin) and an increase in intercellular and vascular cell adhesion molecules (ICAM-1, VCAM-1) and matrix metalloproteinase 9 (MMP9), suggesting a more severe disruption of the BBB. The enzymes and receptors of S1P were also differentially regulated. CONCLUSIONS Microglia, BBB permeability, and S1P pathways could be relevant mechanisms explaining the association between periodontitis and depression.
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Affiliation(s)
- David Martín-Hernández
- Department of Pharmacology and Toxicology, Faculty of Medicine, Complutense University of Madrid (UCM), Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM (IUIN), Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - María Martínez
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain.,Department of Dental Clinical Specialties, Faculty of Dentistry, UCM, Madrid, Spain
| | - Javier Robledo-Montaña
- Department of Pharmacology and Toxicology, Faculty of Medicine, Complutense University of Madrid (UCM), Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM (IUIN), Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - Marina Muñoz-López
- Department of Pharmacology and Toxicology, Faculty of Medicine, Complutense University of Madrid (UCM), Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM (IUIN), Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - Leire Virto
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain.,Department of Anatomy and Embryology, Faculty of Optics, UCM, Madrid, Spain
| | - Nagore Ambrosio
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain.,Department of Dental Clinical Specialties, Faculty of Dentistry, UCM, Madrid, Spain
| | - Maria José Marín
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain
| | - Eduardo Montero
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain.,Department of Dental Clinical Specialties, Faculty of Dentistry, UCM, Madrid, Spain
| | - David Herrera
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain.,Department of Dental Clinical Specialties, Faculty of Dentistry, UCM, Madrid, Spain
| | - Mariano Sanz
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain.,Department of Dental Clinical Specialties, Faculty of Dentistry, UCM, Madrid, Spain
| | - Juan C Leza
- Department of Pharmacology and Toxicology, Faculty of Medicine, Complutense University of Madrid (UCM), Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM (IUIN), Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
| | - Elena Figuero
- ETEP (Etiology and Therapy of Periodontal and Peri-implant Diseases) Research Group, UCM, Madrid, Spain.,Department of Dental Clinical Specialties, Faculty of Dentistry, UCM, Madrid, Spain
| | - Borja García-Bueno
- Department of Pharmacology and Toxicology, Faculty of Medicine, Complutense University of Madrid (UCM), Hospital 12 de Octubre Research Institute (Imas12), Neurochemistry Research Institute UCM (IUIN), Madrid, Spain.,Biomedical Network Research Center of Mental Health (CIBERSAM), Institute of Health Carlos III, Madrid, Spain
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Choi B, Kim JE, Park SO, Kim EY, Oh S, Choi H, Yoon D, Min HJ, Kim HR, Chang EJ. Sphingosine-1-phosphate hinders the osteogenic differentiation of dental pulp stem cells in association with AKT signaling pathways. Int J Oral Sci 2022; 14:21. [PMID: 35459199 PMCID: PMC9033766 DOI: 10.1038/s41368-022-00173-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022] Open
Abstract
Sphingosine-1-phosphate (S1P) is an important lipid mediator that regulates a diverse range of intracellular cell signaling pathways that are relevant to tissue engineering and regenerative medicine. However, the precise function of S1P in dental pulp stem cells (DPSCs) and its osteogenic differentiation remains unclear. We here investigated the function of S1P/S1P receptor (S1PR)-mediated cellular signaling in the osteogenic differentiation of DPSCs and clarified the fundamental signaling pathway. Our results showed that S1P-treated DPSCs exhibited a low rate of differentiation toward the osteogenic phenotype in association with a marked reduction in osteogenesis-related gene expression and AKT activation. Of note, both S1PR1/S1PR3 and S1PR2 agonists significantly downregulated the expression of osteogenic genes and suppressed AKT activation, resulting in an attenuated osteogenic capacity of DPSCs. Most importantly, an AKT activator completely abrogated the S1P-mediated downregulation of osteoblastic markers and partially prevented S1P-mediated attenuation effects during osteogenesis. Intriguingly, the pro-inflammatory TNF-α cytokine promoted the infiltration of macrophages toward DPSCs and induced S1P production in both DPSCs and macrophages. Our findings indicate that the elevation of S1P under inflammatory conditions suppresses the osteogenic capacity of the DPSCs responsible for regenerative endodontics.
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Affiliation(s)
- Bongkun Choi
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji-Eun Kim
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Si-On Park
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun-Young Kim
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soyoon Oh
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyuksu Choi
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dohee Yoon
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyo-Jin Min
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea.,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyung-Ryong Kim
- Department of Pharmacology, College of Dentistry, Jeonbuk National University, Jeonju, Korea.
| | - Eun-Ju Chang
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Korea. .,Stem Cell Immunomodulation Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. .,Department of Biochemistry and Molecular Biology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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