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Ortiz MIG, Dos Santos JJ, Rodrigues-Filho UP, Aguiar FHB, Rischka K, Lima DANL. Maintenance of enamel properties after bleaching with high-concentrated hydrogen-peroxide gel containing calcium polyphosphate sub-microparticles. Clin Oral Investig 2023; 27:5275-5285. [PMID: 37646909 DOI: 10.1007/s00784-023-05147-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/10/2023] [Indexed: 09/01/2023]
Abstract
OBJECTIVE To assessed the physical and chemical properties of human-enamel after treatment with an experimental bleaching gel containing 35%-hydrogen peroxide (HP) and calcium polyphosphate sub-microparticles (CaPP). MATERIALS AND METHODS Enamel/dentin specimens (4 × 4 × 3 mm) were obtained (n = 120) and allocated to different groups: control (saliva only); experimental (HP35%); commercial (whiteness-HP-Maxx); CaPP0.5% (HP35% + CaPP0.5wt%); CaPP1.5% (HP35% + CaPP1.5wt%). Three sessions were performed. The specimens' color was assessed using a spectrophotometer and the color (ΔE/ΔE00) and bleaching index (ΔWID) determined. The surface roughness and microhardness were assessed with a roughness tester and Knoop indenter. Raman spectroscopy was performed to obtain the ratios between the areas under the 431, 580, and 1070 cm-1 and the 960 cm-1 bands (430:960, 580:960, 1070:960). Kruskal-Wallis and Dunn compared the color, Ra, and SMH data. The Raman data was analyzed with Kruskal-Wallis and Dunn (α = 5%). RESULTS The ΔE, ΔE00, and ΔWID were similar among the bleached groups (p > 0.05). The roughness was not different between the groups (p > 0.05). After the 3rd session, CaPP0.5% had higher microhardness than the experimental (p < 0.05). The 1070:960 was higher in the experimental than in the CaPP1.5% and control (p < 0.05). CONCLUSIONS In human enamel, CaPP did not alter the bleaching effectiveness or roughness, and additionally, CaPP-containing gels increased the microhardness and preserved the mineral content when compared to the experimental without CaPP. CLINICAL RELEVANCE Experimental bleaching gels containing calcium polyphosphate sub-microparticles as a mineral source reduce the mineral content alteration and superficial microhardness reduction, known potential side effects of the in-office bleaching treatments.
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Affiliation(s)
- Mariángela Ivette Guanipa Ortiz
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas-UNICAMP, P.O. BOX 52, Piracicaba, SP, 13414-903, Brazil
| | - Juliana Jarussi Dos Santos
- São Carlos Institute of Chemistry, Group of Chemistry of Hybrid and Inorganic Materials (GQMATHI), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Ubirajara Pereira Rodrigues-Filho
- São Carlos Institute of Chemistry, Group of Chemistry of Hybrid and Inorganic Materials (GQMATHI), University of São Paulo (USP), São Carlos, SP, Brazil
| | - Flávio Henrique Baggio Aguiar
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas-UNICAMP, P.O. BOX 52, Piracicaba, SP, 13414-903, Brazil
| | - Klaus Rischka
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas-UNICAMP, P.O. BOX 52, Piracicaba, SP, 13414-903, Brazil
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Bremen, Germany
| | - Débora Alves Nunes Leite Lima
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas-UNICAMP, P.O. BOX 52, Piracicaba, SP, 13414-903, Brazil.
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Mahmoudian RA, Akhlaghipour I, Lotfi M, Shahidsales S, Moghbeli M. Circular RNAs as the pivotal regulators of epithelial-mesenchymal transition in gastrointestinal tumor cells. Pathol Res Pract 2023; 245:154472. [PMID: 37087995 DOI: 10.1016/j.prp.2023.154472] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/11/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Gastrointestinal (GI) cancers, as the most common human malignancies are always considered one of the most important health challenges in the world. Late diagnosis in advanced tumor stages is one of the main reasons for the high mortality rate and treatment failure in these patients. Therefore, investigating the molecular pathways involved in GI tumor progression is required to introduce the efficient markers for the early tumor diagnosis. Epithelial-mesenchymal transition (EMT) is one of the main cellular mechanisms involved in the GI tumor metastasis. Non-coding RNAs (ncRNAs) are one of the main regulatory factors in EMT process. Circular RNAs (circRNAs) are a group of covalently closed loop ncRNAs that have higher stability in body fluids compared with other ncRNAs. Considering the importance of circRNAs in regulation of EMT process, in the present review we discussed the role of circRNAs in EMT process during GI tumor invasion. It has been reported that circRNAs mainly affect the EMT process through the regulation of EMT-specific transcription factors and signaling pathways such as WNT, PI3K/AKT, TGF-β, and MAPK. This review can be an effective step in introducing a circRNA/EMT based diagnostic panel marker for the early tumor detection among GI cancer patients.
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Affiliation(s)
- Reihaneh Alsadat Mahmoudian
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Cancer Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Iman Akhlaghipour
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Malihe Lotfi
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Meysam Moghbeli
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Molecular and biochemical approach for understanding the transition of amorphous to crystalline calcium phosphate deposits in human teeth. Dent Mater 2022; 38:2014-2029. [DOI: 10.1016/j.dental.2022.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/23/2022]
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Schröder HC, Wang X, Neufurth M, Wang S, Müller WEG. Biomimetic Polyphosphate Materials: Toward Application in Regenerative Medicine. PROGRESS IN MOLECULAR AND SUBCELLULAR BIOLOGY 2022; 61:83-130. [PMID: 35697938 DOI: 10.1007/978-3-031-01237-2_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In recent years, inorganic polyphosphate (polyP) has attracted increasing attention as a biomedical polymer or biomaterial with a great potential for application in regenerative medicine, in particular in the fields of tissue engineering and repair. The interest in polyP is based on two properties of this physiological polymer that make polyP stand out from other polymers: polyP has morphogenetic activity by inducing cell differentiation through specific gene expression, and it functions as an energy store and donor of metabolic energy, especially in the extracellular matrix or in the extracellular space. No other biopolymer applicable in tissue regeneration/repair is known that is endowed with this combination of properties. In addition, polyP can be fabricated both in the form of a biologically active coacervate and as biomimetic amorphous polyP nano/microparticles, which are stable and are activated by transformation into the coacervate phase after contact with protein/body fluids. PolyP can be used in the form of various metal salts and in combination with various hydrogel-forming polymers, whereby (even printable) hybrid materials with defined porosities and mechanical and biological properties can be produced, which can even be loaded with cells for 3D cell printing or with drugs and support the growth and differentiation of (stem) cells as well as cell migration/microvascularization. Potential applications in therapy of bone, cartilage and eye disorders/injuries and wound healing are summarized and possible mechanisms are discussed.
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Affiliation(s)
- Heinz C Schröder
- ERC Advanced Investigator Group, Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Xiaohong Wang
- ERC Advanced Investigator Group, Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Meik Neufurth
- ERC Advanced Investigator Group, Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Shunfeng Wang
- ERC Advanced Investigator Group, Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Werner E G Müller
- ERC Advanced Investigator Group, Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Mainz, Germany.
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Chen X, Sun H, Zhao Y, Zhang J, Xiong G, Cui Y, Lei C. CircRNA circ_0004370 promotes cell proliferation, migration, and invasion and inhibits cell apoptosis of esophageal cancer via miR-1301-3p/COL1A1 axis. Open Med (Wars) 2021; 16:104-116. [PMID: 33506107 PMCID: PMC7801883 DOI: 10.1515/med-2021-0001] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 02/06/2023] Open
Abstract
Background The aim of this study was to investigate the circ_0004370 expression in EC, its effects on cell proliferation, apoptosis, migration, invasion, and epithelial–mesenchymal transition (EMT) process, and the underlying regulatory mechanisms in EC. Methods The protein levels of COL1A1 and EMT-related proteins were detected by western blot. The role of circ_0004370 on cell viability, proliferation, and apoptosis was analyzed by Cell Counting Kit-8 (CCK-8) assay, colony formation assay, and flow cytometry, respectively. The transwell assay was used to examine cell migration and invasion. The binding sites between miR-1301-3p and circ_0004370 or COL1A1 were predicted by starbase software and confirmed by dual-luciferase reporter assay and RNA pull-down assay. Results We discovered that circ_0004370 was remarkably upregulated in EC tissues and cells. Knockdown of circ_0004370 inhibited cell proliferation, migration as well as invasion, and promoted apoptosis in vitro, while its effect was rescued by miR-1301-3p inhibition. And circ_0004370 mediated the EMT process in EC cells. Moreover, we explored its regulatory mechanism and found that circ_0004370 directly bound to miR-1301-3p and COL1A1 was verified as a target of miR-1301-3p. COL1A1 was highly expressed in EC cells and upregulation of COL1A1 reversed the effects of miR-1301-3p on cell proliferation, migration, invasion, and apoptosis. In addition, silencing of circ_0004370 reduced tumor volumes and weights in vivo. We showed that circ_0004370/miR-1301-3p/COL1A1 axis played the critical role in EC to regulate the cell activities. Conclusion Circ_0004370 promotes EC proliferation, migration and invasion, and EMT process and suppresses apoptosis by regulating the miR-1301-3p/COL1A1 axis, indicating that circ_0004370 may be used as a potential therapeutic target for EC.
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Affiliation(s)
- Xiaobo Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No 295 Xichang Road, Kunming 650032, Yunnan, China
| | - Hongwen Sun
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No 295 Xichang Road, Kunming 650032, Yunnan, China
| | - Yunping Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No 295 Xichang Road, Kunming 650032, Yunnan, China
| | - Jing Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No 295 Xichang Road, Kunming 650032, Yunnan, China
| | - Guosheng Xiong
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No 295 Xichang Road, Kunming 650032, Yunnan, China
| | - Yue Cui
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No 295 Xichang Road, Kunming 650032, Yunnan, China
| | - Changcheng Lei
- Department of Thoracic Surgery, The First Affiliated Hospital of Kunming Medical University, No 295 Xichang Road, Kunming 650032, Yunnan, China
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Shi Y, Shen D, Zheng H, Wu Z, Shao C, Zhang L, Pan H, Tang R, Fu B. Therapeutic Management of Demineralized Dentin Surfaces Using a Mineralizing Adhesive To Seal and Mineralize Dentin, Dentinal Tubules, and Odontoblast Processes. ACS Biomater Sci Eng 2019; 5:5481-5488. [PMID: 33464067 DOI: 10.1021/acsbiomaterials.9b00619] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Dentin hypersensitivity is attributable to the exposed dentin and its patent tubules. We proposed the therapeutic management of demineralized dentin surfaces using a mineralizing adhesive to seal and remineralize dentin, dentinal tubules, and odontoblast processes. An experimental self-etch adhesive and a mineralizing adhesive consisting of the self-etch adhesive and 20 wt % poly-aspartic acid-stabilized amorphous calcium phosphate (PAsp-ACP) nanoparticles were prepared and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), and scanning electron microscopy. After 60 acid-etched midcoronal dentin disks were treated with distilled water (control), a desensitizing agent (Gluma), the experimental self-etch adhesive, and the mineralizing adhesive, dentin permeability was measured and mineralization was evaluated by Raman, FTIR, XRD, TEM, and selected-area electron diffraction, irrespective of abrasive and acidic challenges. In vitro cytotoxicity of the adhesive and the mineralizing adhesive was assessed by Cell Counting Kit-8. The mineralizing adhesive possessed excellent biocompatibility. We proposed a hybrid mineralization layer composed of the light-cured mineralizing adhesive and the mineralized dentin surfaces, as well as interiorly mineralized resin tags and odontoblast processes inside of the dentinal tubules. This hybrid mineralization not only reduced dentin permeability but also resisted abrasive and acidic attacks.
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Affiliation(s)
- Ying Shi
- Key Laboratory for Oral Biomedical Research of Zhejiang Province, Hangzhou 310029, Zhejiang, China
| | - Dongni Shen
- Key Laboratory for Oral Biomedical Research of Zhejiang Province, Hangzhou 310029, Zhejiang, China
| | - Haiyan Zheng
- Key Laboratory for Oral Biomedical Research of Zhejiang Province, Hangzhou 310029, Zhejiang, China
| | | | | | - Leiqing Zhang
- Key Laboratory for Oral Biomedical Research of Zhejiang Province, Hangzhou 310029, Zhejiang, China
| | | | | | - Baiping Fu
- Key Laboratory for Oral Biomedical Research of Zhejiang Province, Hangzhou 310029, Zhejiang, China
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Ackermann M, Tolba E, Neufurth M, Wang S, Schröder HC, Wang X, Müller WEG. Biomimetic transformation of polyphosphate microparticles during restoration of damaged teeth. Dent Mater 2018; 35:244-256. [PMID: 30522697 DOI: 10.1016/j.dental.2018.11.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 11/01/2018] [Accepted: 11/14/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE In the present study, we investigated the fusion process between amorphous microparticles of the calcium salt of the physiological polymer comprising orthophosphate units, of inorganic polyphosphate (polyP), and enamel. METHODS This polymer was incorporated as an ingredient into toothpaste and the fusion process was studied by electron microscopy and by synchrotron-based X-ray tomography microscopy (SRXTM) techniques. RESULTS The data showed that toothpaste, supplemented with the amorphous Ca-polyP microparticles (aCa-polyP-MP), not only reseals tooth defects on enamel, like carious lesions, and dentin, including exposed dentinal tubules, but also has the potential to induce re-mineralization in the enamel and dentin regions. The formation of a regeneration mineralic zone on the tooth surface induced by aCa-polyP-MP was enhanced upon exposure to artificial saliva, as demonstrated by SRXTM. Energy dispersive X-ray analysis revealed an increase in the calcium/phosphorus atomic ratio of the enamel deposits to values characteristic for the particles during the treatment with polyP applied in the toothpaste, indicating a fusion of the particles with the tooth mineral. SIGNIFICANCE Our results suggest that toothpaste enriched with aCa-polyP-MP is a promising biomimetic material for accelerating enamel and dentin restoration.
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Affiliation(s)
- Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg University, Johann Joachim Becher Weg 13, D-55099 Mainz, Germany
| | - Emad Tolba
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany; Polymers and Pigments Department, National Research Center, 33 El Buhouth St, Dokki, 12311 Cairo, Egypt
| | - Meik Neufurth
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany
| | - Shunfeng Wang
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany
| | - Heinz C Schröder
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany
| | - Xiaohong Wang
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany
| | - Werner E G Müller
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, D-55128 Mainz, Germany.
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