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Shindo Y, Nakamura HM, Nakai J, Wakamori M, Nakamura T. Induction of myoepithelial cell differentiation by carbachol, a parasympathetic neurotransmitter agonist, during salivary gland development. Exp Cell Res 2022; 416:113137. [DOI: 10.1016/j.yexcr.2022.113137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/28/2022] [Accepted: 04/02/2022] [Indexed: 12/01/2022]
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Al Thamin S, Chiba Y, Yoshizaki K, Tian T, Jia L, Wang X, Saito K, Li J, Yamada A, Fukumoto S. Transcriptional regulation of the basic helix-loop-helix factor AmeloD during tooth development. J Cell Physiol 2021; 236:7533-7543. [PMID: 33844290 DOI: 10.1002/jcp.30389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 03/25/2021] [Accepted: 03/30/2021] [Indexed: 02/05/2023]
Abstract
The epithelial-mesenchymal interactions are essential for the initiation and regulation of the development of teeth. Following the initiation of tooth development, numerous growth factors are secreted by the dental epithelium and mesenchyme that play critical roles in cellular differentiation. During tooth morphogenesis, the dental epithelial stem cells differentiate into several cell types, including inner enamel epithelial cells, which then differentiate into enamel matrix-secreting ameloblasts. Recently, we reported that the novel basic-helix-loop-helix transcription factor, AmeloD, is actively engaged in the development of teeth as a regulator of dental epithelial cell motility. However, the gene regulation mechanism of AmeloD is still unknown. In this study, we aimed to uncover the mechanisms regulating AmeloD expression during tooth development. By screening growth factors that are important in the early stages of tooth formation, we found that TGF-β1 induced AmeloD expression and ameloblast differentiation in the dental epithelial cell line, SF2. TGF-β1 phosphorylated ERK1/2 and Smad2/3 to induce AmeloD expression, whereas treatment with the MEK inhibitor, U0126, inhibited AmeloD induction. Promoter analysis of AmeloD revealed that the proximal promoter of AmeloD showed high activity in dental epithelial cell lines, which was enhanced following TGF-β1 stimulation. These results suggested that TGF-β1 activates AmeloD transcription via ERK1/2 phosphorylation. Our findings provide new insights into the mechanisms that govern tooth development.
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Affiliation(s)
- Shahad Al Thamin
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yuta Chiba
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Keigo Yoshizaki
- Section of Orthodontics and Dentofacial Orthopedics, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Tian Tian
- Section of Orthodontics and Dentofacial Orthopedics, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - LingLing Jia
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin Wang
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Kan Saito
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Jiyao Li
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Aya Yamada
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Satoshi Fukumoto
- Department of Oral Health and Development Sciences, Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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Torretta E, Barbacini P, Al-Daghri NM, Gelfi C. Sphingolipids in Obesity and Correlated Co-Morbidities: The Contribution of Gender, Age and Environment. Int J Mol Sci 2019; 20:ijms20235901. [PMID: 31771303 PMCID: PMC6929069 DOI: 10.3390/ijms20235901] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023] Open
Abstract
This paper reviews our present knowledge on the contribution of ceramide (Cer), sphingomyelin (SM), dihydroceramide (DhCer) and sphingosine-1-phosphate (S1P) in obesity and related co-morbidities. Specifically, in this paper, we address the role of acyl chain composition in bodily fluids for monitoring obesity in males and females, in aging persons and in situations of environmental hypoxia adaptation. After a brief introduction on sphingolipid synthesis and compartmentalization, the node of detection methods has been critically revised as the node of the use of animal models. The latter do not recapitulate the human condition, making it difficult to compare levels of sphingolipids found in animal tissues and human bodily fluids, and thus, to find definitive conclusions. In human subjects, the search for putative biomarkers has to be performed on easily accessible material, such as serum. The serum “sphingolipidome” profile indicates that attention should be focused on specific acyl chains associated with obesity, per se, since total Cer and SM levels coupled with dyslipidemia and vitamin D deficiency can be confounding factors. Furthermore, exposure to hypoxia indicates a relationship between dyslipidemia, obesity, oxygen level and aerobic/anaerobic metabolism, thus, opening new research avenues in the role of sphingolipids.
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Affiliation(s)
- Enrica Torretta
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
| | - Pietro Barbacini
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
- Ph.D. school in Molecular and Translational Medicine, University of Milan, 20142 Milan, Italy
| | - Nasser M. Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department,College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
- I.R.C.C.S Orthopedic Institute Galeazzi, R. Galeazzi 4, 20161 Milan, Italy
- Correspondence: ; Tel.: +39-025-033-0475
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Depletion of Gangliosides Enhances Articular Cartilage Repair in Mice. Sci Rep 2017; 7:43729. [PMID: 28252046 PMCID: PMC5333092 DOI: 10.1038/srep43729] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 01/27/2017] [Indexed: 12/23/2022] Open
Abstract
Elucidation of the healing mechanisms in damaged tissues is a critical step for establishing breakthroughs in tissue engineering. Articular cartilage is clinically one of the most successful tissues to be repaired with regenerative medicine because of its homogeneous extracellular matrix and few cell types. However, we only poorly understand cartilage repair mechanisms, and hence, regenerated cartilage remains inferior to the native tissues. Here, we show that glycosylation is an important process for hypertrophic differentiation during articular cartilage repair. GM3, which is a precursor molecule for most gangliosides, was transiently expressed in surrounding damaged tissue, and depletion of GM3 synthase enhanced cartilage repair. Gangliosides also regulated chondrocyte hypertrophy via the Indian hedgehog pathway. These results identify a novel mechanism of cartilage healing through chondrocyte hypertrophy that is regulated by glycosylation. Manipulation of gangliosides and their synthases may have beneficial effects on articular cartilage repair.
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Nakamura T, Jimenez-Rojo L, Koyama E, Pacifici M, de Vega S, Iwamoto M, Fukumoto S, Unda F, Yamada Y. Epiprofin Regulates Enamel Formation and Tooth Morphogenesis by Controlling Epithelial-Mesenchymal Interactions During Tooth Development. J Bone Miner Res 2017; 32:601-610. [PMID: 27787957 DOI: 10.1002/jbmr.3024] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 10/16/2016] [Accepted: 10/22/2016] [Indexed: 01/17/2023]
Abstract
The synchronization of cell proliferation and cytodifferentiation between dental epithelial and mesenchymal cells is required for the morphogenesis of teeth with the correct functional shapes and optimum sizes. Epiprofin (Epfn), a transcription factor belonging to the Sp family, regulates dental epithelial cell proliferation and is essential for ameloblast and odontoblast differentiation. Epfn deficiency results in the lack of enamel and ironically the formation of extra teeth. We investigated the mechanism underlying the functions of Epfn in tooth development through the creation of transgenic mice expressing Epfn under the control of an epithelial cell-specific K5 promoter (K5-Epfn). We found that these K5-Epfn mice developed abnormally shaped incisors and molars and formed fewer molars in the mandible. Remarkably, ameloblasts differentiated ectopically and enamel was formed on the lingual side of the K5-Epfn incisors. By contrast, ameloblasts and enamel were found only on the labial side in wild-type mice, as Follistatin (Fst) expressed in the lingual side inhibits BMP4 signaling necessary for ameloblast differentiation. We showed that Epfn transfection into the dental epithelial cell line SF2 abrogated the inhibitory activity of Fst and promoted ameloblast differentiation of SF2 cells. We found that Epfn induced FGF9 in dental epithelial cells and this dental epithelial cell-derived FGF9 promoted dental mesenchymal cell proliferation via the FGF receptor 1c (FGFR1c). Taken together, these results suggest that Epfn preserves the balance between cell proliferation and cytodifferentiation in dental epithelial and mesenchymal cells during normal tooth development and morphogenesis. © 2016 American Society for Bone and Mineral Research.
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Affiliation(s)
- Takashi Nakamura
- Division of Molecular Pharmacology and Cell Biophysics, Department of Oral Biology, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Laboratory of Cell and Developmental Biology, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD, USA
| | - Lucia Jimenez-Rojo
- Institute of Oral Biology, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Eiki Koyama
- Division of Orthopedic Research Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Maurizio Pacifici
- Division of Orthopedic Research Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Susana de Vega
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, Japan
| | - Masahiro Iwamoto
- Division of Orthopedic Research Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Satoshi Fukumoto
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Fernando Unda
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Yoshihiko Yamada
- Laboratory of Cell and Developmental Biology, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD, USA
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Nakamura T, Chiba Y, Naruse M, Saito K, Harada H, Fukumoto S. Globoside accelerates the differentiation of dental epithelial cells into ameloblasts. Int J Oral Sci 2016; 8:205-212. [PMID: 27767053 PMCID: PMC5168416 DOI: 10.1038/ijos.2016.35] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2016] [Indexed: 12/23/2022] Open
Abstract
Tooth crown morphogenesis is tightly regulated by the proliferation and differentiation of dental epithelial cells. Globoside (Gb4), a globo-series glycosphingolipid, is highly expressed during embryogenesis as well as organogenesis, including tooth development. We previously reported that Gb4 is dominantly expressed in the neutral lipid fraction of dental epithelial cells. However, because its functional role in tooth development remains unknown, we investigated the involvement of Gb4 in dental epithelial cell differentiation. The expression of Gb4 was detected in ameloblasts of postnatal mouse molars and incisors. A cell culture analysis using HAT-7 cells, a rat-derived dental epithelial cell line, revealed that Gb4 did not promote dental epithelial cell proliferation. Interestingly, exogenous administration of Gb4 enhanced the gene expression of enamel extracellular matrix proteins such as ameloblastin, amelogenin, and enamelin in dental epithelial cells as well as in developing tooth germs. Gb4 also induced the expression of TrkB, one of the key receptors required for ameloblast induction in dental epithelial cells. In contrast, Gb4 downregulated the expression of p75, a receptor for neurotrophins (including neurotrophin-4) and a marker of undifferentiated dental epithelial cells. In addition, we found that exogenous administration of Gb4 to dental epithelial cells stimulated the extracellular signal-regulated kinase and p38 mitogen-activated protein kinase signalling pathways. Furthermore, Gb4 induced the expression of epiprofin and Runx2, the positive regulators for ameloblastin gene transcription. Thus, our results suggest that Gb4 contributes to promoting the differentiation of dental epithelial cells into ameloblasts.
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Affiliation(s)
- Takashi Nakamura
- Division of Molecular Pharmacology and Cell Biophysics, Department of Oral Biology, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yuta Chiba
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Masahiro Naruse
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kan Saito
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Hidemitsu Harada
- Division of Developmental Biology and Regenerative Medicine, Department of Anatomy, Iwate Medical University, Yahaba, Japan
| | - Satoshi Fukumoto
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Tadaki M, Anada T, Shiwaku Y, Nakamura T, Nakamura M, Kojima M, Arai T, Fukumoto S, Suzuki O. A 3D culture model study monitoring differentiation of dental epithelial cells into ameloblast-like cells. RSC Adv 2016. [DOI: 10.1039/c6ra04570g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The present study was designed to investigate whether a three dimensional (3D) culture of the rat incisor-derived dental epithelial cell line SF2 enhances its differentiation into ameloblast-like cells.
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Affiliation(s)
- Mayu Tadaki
- Division of Pediatric Dentistry
- Tohoku University Graduate School of Dentistry
- Sendai
- Japan
- Division of Craniofacial Function Engineering
| | - Takahisa Anada
- Division of Craniofacial Function Engineering
- Tohoku University Graduate School of Dentistry
- Sendai 980-8575
- Japan
| | - Yukari Shiwaku
- Division of Craniofacial Function Engineering
- Tohoku University Graduate School of Dentistry
- Sendai 980-8575
- Japan
- Liaison Center for Innovative Dentistry
| | - Takashi Nakamura
- Division of Molecular Pharmacology & Cell Biophysics
- Tohoku University Graduate School of Dentistry
- Sendai
- Japan
| | - Masanori Nakamura
- Oral Anatomy and Developmental Biology
- Showa University School of Dentistry
- Tokyo
- Japan
| | - Masaru Kojima
- Department of Systems Innovation
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Tatsuo Arai
- Department of Systems Innovation
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Satoshi Fukumoto
- Division of Pediatric Dentistry
- Tohoku University Graduate School of Dentistry
- Sendai
- Japan
| | - Osamu Suzuki
- Division of Craniofacial Function Engineering
- Tohoku University Graduate School of Dentistry
- Sendai 980-8575
- Japan
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New insights into the functions of enamel matrices in calcified tissues. JAPANESE DENTAL SCIENCE REVIEW 2014. [DOI: 10.1016/j.jdsr.2014.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Dong CH, Zhang YT, Huang G, Dong JJ, Liu HX, Tian XH, Wang J, Lv ZG, Song LN, Yu WQ. A solid phase approach to PDMP analogs: A general strategy for combinatorial library. CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2013.05.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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