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l-Arginine prevents inflammatory and pro-calcific differentiation of interstitial aortic valve cells. Atherosclerosis 2020; 298:27-35. [PMID: 32169720 DOI: 10.1016/j.atherosclerosis.2020.02.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/17/2020] [Accepted: 02/28/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS Reduced bioavailability of nitric oxide (NO) has been implicated in the pathogenesis of calcific aortic stenosis. Herein, we investigated the effects of l-Arginine, the main precursor of NO, on the osteogenic differentiation of aortic interstitial valve cells (VICs). METHODS We isolated a clonal population of bovine VICs that expresses osteogenic markers and induces calcification of collagen matrix after stimulation with endotoxin (LPS 500 ng/mL). VICs were treated in vitro with different combinations of LPS ± l-Arginine (50 or 100 mM) and cell extracts were collected to perform proteomic (iTRAQ) and gene expression (RT-PCR) analysis. RESULTS l-Arginine prevents the over-expression of alkaline phosphatase (ALP, p < 0.001) and reduces matrix calcification (p < 0.05) in VICs treated with LPS. l-Arginine also reduces the over-expression of inflammatory molecules induced by LPS (TNF-alpha, IL-6 and IL-1beta, p < 0.001). The proteomic analysis allowed to identify 49 proteins with an altered expression profile after stimulation with LPS and significantly modified by l-Arginine. These include proteins involved in the redox homeostasis of the cells (i.e. Xanthine Oxidase, Catalase, Aldehyde Oxidase), remodeling of the extracellular matrix (i.e. ADAMTSL4, Basigin, COL3A1) and cellular signaling (i.e. Fibrillin-1, Legumain, S100A13). The RT-PCR analysis confirmed the modifications of Fibrillin-1, ADAMTSL4, Basigin and Xanthine Oxidase, whose expression levels increase after stimulation with LPS and are reduced by l-Arginine (p < 0.05). CONCLUSIONS l-Arginine prevents osteogenic differentiation of VICs and reduces matrix calcification. This effect is achieved through the modulation of proteins involved in the cellular redox system, remodeling of extracellular matrix and inflammatory activation of VICs.
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Sanz-Navarro M, Seidel K, Sun Z, Bertonnier-Brouty L, Amendt BA, Klein OD, Michon F. Plasticity within the niche ensures the maintenance of a Sox2+ stem cell population in the mouse incisor. Development 2018; 145:dev.155929. [PMID: 29180573 DOI: 10.1242/dev.155929] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 11/15/2017] [Indexed: 12/16/2022]
Abstract
In mice, the incisors grow throughout the animal's life, and this continuous renewal is driven by dental epithelial and mesenchymal stem cells. Sox2 is a principal marker of the epithelial stem cells that reside in the mouse incisor stem cell niche, called the labial cervical loop, but relatively little is known about the role of the Sox2+ stem cell population. In this study, we show that conditional deletion of Sox2 in the embryonic incisor epithelium leads to growth defects and impairment of ameloblast lineage commitment. Deletion of Sox2 specifically in Sox2+ cells during incisor renewal revealed cellular plasticity that leads to the relatively rapid restoration of a Sox2-expressing cell population. Furthermore, we show that Lgr5-expressing cells are a subpopulation of dental Sox2+ cells that also arise from Sox2+ cells during tooth formation. Finally, we show that the embryonic and adult Sox2+ populations are regulated by distinct signalling pathways, which is reflected in their distinct transcriptomic signatures. Together, our findings demonstrate that a Sox2+ stem cell population can be regenerated from Sox2- cells, reinforcing its importance for incisor homeostasis.
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Affiliation(s)
- Maria Sanz-Navarro
- Helsinki Institute of Life Sciences, Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.,Orthodontics, Department of Oral and Maxillofacial Diseases, University of Helsinki, 00290 Helsinki, Finland
| | - Kerstin Seidel
- Department of Orofacial Sciences and Program in Craniofacial Biology, UCSF, San Francisco, CA 94143, USA
| | - Zhao Sun
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA
| | - Ludivine Bertonnier-Brouty
- Helsinki Institute of Life Sciences, Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.,Département de Biologie, École Normale Supérieure de Lyon, Université de Lyon, 69007 Lyon, France
| | - Brad A Amendt
- Department of Anatomy and Cell Biology, and the Craniofacial Anomalies Research Center, The University of Iowa, Iowa City, IA 52242, USA.,College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
| | - Ophir D Klein
- Department of Orofacial Sciences and Program in Craniofacial Biology, UCSF, San Francisco, CA 94143, USA.,Department of Pediatrics and Institute for Human Genetics, University of California San Francisco, San Francisco, CA 94143, USA
| | - Frederic Michon
- Helsinki Institute of Life Sciences, Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland .,Keele Medical School and Institute for Science and Technology in Medicine, Keele University, Keele ST5 5BG, UK
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Yang L, Zhu Q, Gong J, Xie M, Jiao T. CyPA and Emmprin play a role in peri-implantitis. Clin Implant Dent Relat Res 2017; 20:102-109. [PMID: 29057571 DOI: 10.1111/cid.12549] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 08/20/2017] [Accepted: 08/30/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Lei Yang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine; Shanghai 200011 PR China
- Shanghai Key laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology; Shanghai 200011 PR China
| | - Qing Zhu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine; Shanghai 200011 PR China
- Shanghai Key laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology; Shanghai 200011 PR China
| | - Jingjue Gong
- Department of Prosthodontics, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine; Shanghai 200011 PR China
- Shanghai Key laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology; Shanghai 200011 PR China
| | - Ming Xie
- Department of Prosthodontics, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine; Shanghai 200011 PR China
- Shanghai Key laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology; Shanghai 200011 PR China
| | - Ting Jiao
- Department of Prosthodontics, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine; Shanghai 200011 PR China
- Shanghai Key laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology; Shanghai 200011 PR China
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Inhibition of chondroitin sulfate glycosaminoglycans incorporation affected odontoblast differentiation in cultured embryonic mouse molars. J Mol Histol 2017; 48:337-345. [PMID: 28756608 DOI: 10.1007/s10735-017-9732-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/22/2017] [Indexed: 01/05/2023]
Abstract
Chondroitin sulfate proteoglycan (CSPG) is an important component of extracellular matrix (ECM), it is composed of a core protein and one or more chondroitin sulfate glycosaminoglycan side chains (CS-GAGs). To investigate the roles of its CS-GAGs in dentinogenesis, the mouse mandibular first molar tooth germs at early bell stage were cultivated with or without β-xyloside. As expected, the CS-GAGs were inhibited on their incorporation to CSPGs by β-xyloside, accompanied by the change of morphology of the cultured tooth germs. The histological results and the transmission electron microscopy (TEM) investigation indicated that β-xyloside exhibited obvious inhibiting effects on odontoblasts differentiation compared with the control group. Meanwhile the results of immunohistochemistry, in situ hybridization and quantitative RT-PCR for type I collagen, dentin matrix acidic phosphoprotein 1 and dentin sialophosphoprotein, the products of differentiated odontoblasts, further proved that odontoblasts differentiation was inhibited. Collagen fibers detected in TEM decreased and arranged in disorder as well. Thus we conclude that the inhibition of CS-GAGs incorporation to CSPGs can affect odontoblast differentiation in cultured embryonic mouse molars.
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Yang D, Liu R, Liu L, Liao H, Wang C, Cao Z. Involvement of CD147 in alveolar bone remodeling and soft tissue degradation in experimental periodontitis. J Periodontal Res 2017; 52:704-712. [PMID: 28198555 DOI: 10.1111/jre.12435] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2016] [Indexed: 10/20/2022]
Affiliation(s)
- D. Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS); Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME); School and Hospital of Stomatology; Wuhan University; Wuhan China
- Department of Periodontology; School and Hospital of Stomatology; Wuhan University; Wuhan China
| | - R. Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS); Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME); School and Hospital of Stomatology; Wuhan University; Wuhan China
| | - L. Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS); Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME); School and Hospital of Stomatology; Wuhan University; Wuhan China
| | - H. Liao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS); Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME); School and Hospital of Stomatology; Wuhan University; Wuhan China
| | - C. Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS); Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME); School and Hospital of Stomatology; Wuhan University; Wuhan China
| | - Z. Cao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS); Key Laboratory for Oral Biomedical Engineering of Ministry of Education (KLOBME); School and Hospital of Stomatology; Wuhan University; Wuhan China
- Department of Periodontology; School and Hospital of Stomatology; Wuhan University; Wuhan China
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Hyaluronan and hyaluronan synthases expression and localization in embryonic mouse molars. J Mol Histol 2016; 47:413-20. [PMID: 27318667 DOI: 10.1007/s10735-016-9684-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 06/13/2016] [Indexed: 12/28/2022]
Abstract
Hyaluronan (HA) and hyaluronan synthases (HASs) have been shown to play critical roles in embryogenesis and organ development. However, there have not been any studies examining HA and HAS expression and localization during tooth development. The present study was designed to investigate the expression of HA and three isoforms of HASs (HAS1, 2, 3) in embryonic mouse molars. The first mandibular embryonic mouse molars were examined by immunohistochemistry at E11.5, E13.5, E14.5, E16.5, and E18.5. PCR and western blot analyses were performed on RNA and proteins samples from E13.5 to E18.5 tooth germs. At the initial stage (E11.5), HA and HASs were expressed in the dental epithelium but not the underlying dental mesenchyme. HA immunostaining gradually increased in the enamel organ from the bud stage (E13.5) to the late bell stage (E18.5), and HA and HASs were highly expressed in the stellate reticulum and stratum intermedium. HA immunostaining was also enhanced in the dental mesenchyme and its derived tissues, but it was not expressed in the ameloblast and odontoblast regions. The three HAS isoforms had distinct expression patterns, and they were expressed in the dental mesenchyme and odontoblast at various levels. Furthermore, HAS1 and HAS2 expression decreased, while HAS3 expression increased from E13.5 to E18.5. These results suggested that HA synthesized by different HASs is involved in embryonic mouse molar morphogenesis and cytodifferentiation.
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Hasegawa K, Wada H, Nagata K, Fujiwara H, Wada N, Someya H, Mikami Y, Sakai H, Kiyoshima T. Facioscapulohumeral muscular dystrophy (FSHD) region gene 1 (FRG1) expression and possible function in mouse tooth germ development. J Mol Histol 2016; 47:375-87. [PMID: 27234941 DOI: 10.1007/s10735-016-9680-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/18/2016] [Indexed: 01/01/2023]
Abstract
Abnormal expression of Facioscapulohumeral muscular dystrophy (FSHD) region gene 1 (FRG1) is involved in the pathogenesis of FSHD. FRG1 is also important for the normal muscular and vascular development. Our previous study showed that FRG1 is one of the highly expressed genes in the mandible on embryonic day 10.5 (E10.5) than on E12.0. In this study, we investigated the temporospatial expression pattern of FRG1 mRNA and protein during the development of the mouse lower first molar, and also evaluated the subcellular localization of the FRG1 protein in mouse dental epithelial (mDE6) cells. The FRG1 expression was identified in the dental epithelial and mesenchymal cells at the initiation and bud stages. It was detected in the inner enamel epithelium at the cap and early bell stages. At the late bell and root formation stages, these signals were detected in ameloblasts and odontoblasts during the formation of enamel and dentin matrices, respectively. The FRG1 protein was localized in the cytoplasm in the mouse tooth germ in vivo, while FRG1 was detected predominantly in the nucleus and faintly in the cytoplasm in mDE6 cells in vitro. In mDE6 cells treated with bone morphogenetic protein 4 (BMP4), the protein expression of FRG1 increased in cytoplasm, suggesting that FRG1 may translocate to the cytoplasm. These findings suggest that FRG1 is involved in the morphogenesis of the tooth germ, as well as in the formation of enamel and dentin matrices and that FRG1 may play a role in the odontogenesis in the mouse following BMP4 stimulation.
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Affiliation(s)
- Kana Hasegawa
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Department of Endodontology and Operative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hiroko Wada
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Kengo Nagata
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroaki Fujiwara
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Naohisa Wada
- Division of General Dentistry, Kyushu University Hospital, Kyushu University, Fukuoka, Japan
| | - Hirotaka Someya
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yurie Mikami
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hidetaka Sakai
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tamotsu Kiyoshima
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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8
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Shi L, Li L, Wang D, Li S, Chen Z, An Z. Spatiotemporal expression of caveolin-1 and EMMPRIN during mouse tooth development. J Mol Histol 2016; 47:337-44. [PMID: 27075451 DOI: 10.1007/s10735-016-9675-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 04/06/2016] [Indexed: 12/31/2022]
Abstract
Caveolin-1 is a scaffolding protein involved in the formation of cholesterol-rich caveolae lipid rafts within the plasma membrane and is capable of collecting signaling molecules into the caveolae and regulating their activity, including extracellular matrix metalloproteinase inducer (EMMPRIN). However, detailed expression patterns of caveolin-1 and EMMPRIN in the developing dental germ are largely unknown. The present study investigated the expression patterns of caveolin-1 and EMMPRIN in the developing mouse tooth germ by immunohistochemistry and real-time polymerase chain reaction. At the bud stage, caveolin-1 expression was initiated in the epithelium bud and mesenchymal cells, while EMMPRIN was weakly expressed at this stage. At the cap stage, caveolin-1 protein was located in the lingual part of the tooth germ; however, EMMPRIN protein was located in the labial part. From the bell stage to 2 days postnatal, caveolin-1 expression was detected in the ameloblasts and cervical loop area; with EMMPRIN expression in the ameloblasts and odontoblasts. Real-time polymerase chain reaction results showed that both caveolin-1 and EMMPRIN mRNA levels increased gradually with progression of developmental stages, and peaked at day two postnatal. The current finding suggests that both caveolin-1 and EMMPRIN take part in mouse tooth development, especially in the differentiation and organization of odontogenic tissues.
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Affiliation(s)
- Lu Shi
- Henan Provincial Key Laboratory of Oral Biomedicine, School of Stomatology, Zhengzhou University, 79 Zhongyuandong Road, Zhengzhou, 450000, Henan, People's Republic of China.
| | - Lingyun Li
- Henan Provincial Key Laboratory of Oral Biomedicine, School of Stomatology, Zhengzhou University, 79 Zhongyuandong Road, Zhengzhou, 450000, Henan, People's Republic of China
| | - Ding Wang
- Henan Provincial Key Laboratory of Oral Biomedicine, School of Stomatology, Zhengzhou University, 79 Zhongyuandong Road, Zhengzhou, 450000, Henan, People's Republic of China
| | - Shu Li
- Shandong Provincial Key Laboratory of Oral Biomedicine, School and Hospital of Stomatology, Shandong University, 44-1 Wenhuaxi Road, Jinan, 250012, Shandong, People's Republic of China
| | - Zhi Chen
- Key Lab for Oral Biomedical Engineering, Ministry of Education, School of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Zhengwen An
- Craniofacial Development and Stem Cell Biology, Floor 27 Guy's Hospital Dental Institute, King's College London, London, SE1 9RT, UK
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