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Yang J, Shuai J, Siow L, Lu J, Sun M, An W, Yu M, Wang B, Chen Q. MicroRNA-146a-loaded magnesium silicate nanospheres promote bone regeneration in an inflammatory microenvironment. Bone Res 2024; 12:2. [PMID: 38221522 PMCID: PMC10788347 DOI: 10.1038/s41413-023-00299-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/25/2023] [Accepted: 10/02/2023] [Indexed: 01/16/2024] Open
Abstract
Reconstruction of irregular oral-maxillofacial bone defects with an inflammatory microenvironment remains a challenge, as chronic local inflammation can largely impair bone healing. Here, we used magnesium silicate nanospheres (MSNs) to load microRNA-146a-5p (miR-146a) to fabricate a nanobiomaterial, MSN+miR-146a, which showed synergistic promoting effects on the osteogenic differentiation of human dental pulp stem cells (hDPSCs). In addition, miR-146a exhibited an anti-inflammatory effect on mouse bone marrow-derived macrophages (BMMs) under lipopolysaccharide (LPS) stimulation by inhibiting the NF-κB pathway via targeting tumor necrosis factor receptor-associated factor 6 (TRAF6), and MSNs could simultaneously promote M2 polarization of BMMs. MiR-146a was also found to inhibit osteoclast formation. Finally, the dual osteogenic-promoting and immunoregulatory effects of MSN+miR-146a were further validated in a stimulated infected mouse mandibular bone defect model via delivery by a photocuring hydrogel. Collectively, the MSN+miR-146a complex revealed good potential in treating inflammatory irregular oral-maxillofacial bone defects.
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Affiliation(s)
- Jiakang Yang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Jing Shuai
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Lixuen Siow
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Jingyi Lu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Miao Sun
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Wenyue An
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Mengfei Yu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Baixiang Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China.
| | - Qianming Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China.
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Abstract
Apical periodontitis is the inflammation and destruction of periradicular tissues, mediated by microbial factors originating from the infected pulp space. This bacteria-mediated inflammatory disease is known to interfere with root development in immature permanent teeth. Current research on interventions in immature teeth has been dedicated to facilitating the continuation of root development as well as regenerating the dentin-pulp complex, but the fundamental knowledge on the cellular interactions and the role of periapical mediators in apical periodontitis in immature roots that govern the disease process and post-treatment healing is limited. The limitations in 2D monolayer cell culture have a substantial role in the existing limitations of understanding cell-to-cell interactions in the pulpal and periapical tissues. Three-dimensional (3D) tissue constructs with two or more different cell populations are a better physiological representation of in vivo environment. These systems allow the high-throughput testing of multi-cell interactions and can be applied to study the interactions between stem cells and immune cells, including the role of mediators/cytokines in simulated environments. Well-designed 3D models are critical for understanding cellular functions and interactions in disease and healing processes for future therapeutic optimization in regenerative endodontics. This narrative review covers the fundamentals of (1) the disease process of apical periodontitis; (2) the influence and challenges of regeneration in immature roots; (3) the introduction of and crosstalk between mesenchymal stem cells and macrophages; (4) 3D cell culture techniques and their applications for studying cellular interactions in the pulpal and periapical tissues; (5) current investigations on cellular interactions in regenerative endodontics; and, lastly, (6) the dental-pulp organoid developed for regenerative endodontics.
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Affiliation(s)
- Fang-Chi Li
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada
| | - Anil Kishen
- Dental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, ON M5G 1G6, Canada
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Ohlsson E, Galler KM, Widbiller M. A Compilation of Study Models for Dental Pulp Regeneration. Int J Mol Sci 2022; 23:ijms232214361. [PMID: 36430838 PMCID: PMC9695686 DOI: 10.3390/ijms232214361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 11/22/2022] Open
Abstract
Efforts to heal damaged pulp tissue through tissue engineering have produced positive results in pilot trials. However, the differentiation between real regeneration and mere repair is not possible through clinical measures. Therefore, preclinical study models are still of great importance, both to gain insights into treatment outcomes on tissue and cell levels and to develop further concepts for dental pulp regeneration. This review aims at compiling information about different in vitro and in vivo ectopic, semiorthotopic, and orthotopic models. In this context, the differences between monolayer and three-dimensional cell cultures are discussed, a semiorthotopic transplantation model is introduced as an in vivo model for dental pulp regeneration, and finally, different animal models used for in vivo orthotopic investigations are presented.
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Affiliation(s)
- Ella Ohlsson
- Department of Operative Dentistry and Periodontology, Friedrich-Alexander-University Erlangen-Nuernberg, D-91054 Erlangen, Germany
| | - Kerstin M. Galler
- Department of Operative Dentistry and Periodontology, Friedrich-Alexander-University Erlangen-Nuernberg, D-91054 Erlangen, Germany
| | - Matthias Widbiller
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, D-93053 Regensburg, Germany
- Correspondence:
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Hall ML, Givens S, Santosh N, Iacovino M, Kyba M, Ogle BM. Laminin 411 mediates endothelial specification via multiple signaling axes that converge on β-catenin. Stem Cell Reports 2022; 17:569-583. [PMID: 35120622 PMCID: PMC9039757 DOI: 10.1016/j.stemcr.2022.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 11/24/2022] Open
Abstract
The extracellular matrix (ECM) provides essential cues to promote endothelial specification during tissue development in vivo; correspondingly, ECM is considered essential for endothelial differentiation outside of the body. However, systematic studies to assess the precise contribution of individual ECM proteins to endothelial differentiation have not been conducted. Further, the multi-component nature of differentiation protocols makes it challenging to study the underlying mechanisms by which the ECM contributes to cell fate. In this study, we determined that Laminin 411 alone increases endothelial differentiation of induced pluripotent stem cells over collagen I or Matrigel. The effect of ECM was shown to be independent of vascular endothelial growth factor (VEGF) binding capacity. We also show that ECM-guided endothelial differentiation is dependent on activation of focal adhesion kinase (FAK), integrin-linked kinase (ILK), Notch, and β-catenin pathways. Our results indicate that ECM contributes to endothelial differentiation through multiple avenues, which converge at the expression of active β-catenin.
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Affiliation(s)
- Mikayla L Hall
- Department of Biomedical Engineering, University of Minnesota, Twin Cities, 7-130 Nils Hasselmo Hall, 312 Church St. SE, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Sophie Givens
- Department of Biomedical Engineering, University of Minnesota, Twin Cities, 7-130 Nils Hasselmo Hall, 312 Church St. SE, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Natasha Santosh
- Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Michelina Iacovino
- Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Michael Kyba
- Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Lillehei Heart Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Brenda M Ogle
- Department of Biomedical Engineering, University of Minnesota, Twin Cities, 7-130 Nils Hasselmo Hall, 312 Church St. SE, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Lillehei Heart Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Institute for Engineering in Medicine, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Masonic Cancer Center, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
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Martin-iglesias S, Milian L, Sancho-tello M, Salvador-clavell R, Martín de Llano JJ, Carda C, Mata M, Chimenti I. BMP-2 Enhances Osteogenic Differentiation of Human Adipose-Derived and Dental Pulp Stem Cells in 2D and 3D In Vitro Models. Stem Cells Int 2022; 2022:1-15. [PMID: 35283997 PMCID: PMC8916887 DOI: 10.1155/2022/4910399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/02/2021] [Accepted: 11/08/2021] [Indexed: 12/25/2022] Open
Abstract
Bone tissue provides support and protection to different organs and tissues. Aging and different diseases can cause a decrease in the rate of bone regeneration or incomplete healing; thus, tissue-engineered substitutes can be an acceptable alternative to traditional therapies. In the present work, we have developed an in vitro osteogenic differentiation model based on mesenchymal stem cells (MSCs), to first analyse the influence of the culture media and the origin of the cells on the efficiency of this process and secondly to extrapolate it to a 3D environment to evaluate its possible application in bone regeneration therapies. Two osteogenic culture media were used (one commercial from Stemcell Technologies and a second supplemented with dexamethasone, ascorbic acid, glycerol-2-phosphate, and BMP-2), with human cells of a mesenchymal phenotype from two different origins: adipose tissue (hADSCs) and dental pulp (hDPSCs). The expression of osteogenic markers in 2D cultures was evaluated in several culture periods by means of the immunofluorescence technique and real-time gene expression analysis, taking as reference MG-63 cells of osteogenic origin. The same strategy was extrapolated to a 3D environment of polylactic acid (PLA), with a 3% alginate hydrogel. The expression of osteogenic markers was detected in both hADSCs and hDPSCs, cultured in either 2D or 3D environments. However, the osteogenic differentiation of MSCs was obtained based on the culture medium and the cell origin used, since higher osteogenic marker levels were found when hADSCs were cultured with medium supplemented with BMP-2. Furthermore, the 3D culture used was suitable for cell survival and osteogenic induction.
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Rong W, Rome C, Yao S. Increased Expression of miR-7a-5p and miR-592 during Expansion of Rat Dental Pulp Stem Cells and Their Implication in Osteogenic Differentiation. Cells Tissues Organs 2022; 211:41-56. [PMID: 34530424 PMCID: PMC8766878 DOI: 10.1159/000519600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 09/12/2021] [Indexed: 01/03/2023] Open
Abstract
Dental pulp stem cells (DPSCs) possess strong osteogenic differentiation potential and are promising cell sources in regenerative medicine. However, such differentiation capacity progressively declines during their in vitro expansion. MicroRNAs (miRNAs) play important roles in modulating stem cell differentiation. This study aimed (1) to determine if miR-7a-5p and miR-592 are involved in maintaining and regulating osteogenic differentiation of DPSCs, and (2) to explore their potential regulatory pathways. We found that the expression of miR-7a-5p and miR-592 was significantly upregulated during the expansion of rat DPSCs (rDPSCs). Overexpression of these miRNAs inhibited the osteogenic/odontogenic differentiation of rDPSCs, as evidenced by calcium deposition and osteogenic/odontogenic gene expression. RT-qPCR determined that miR-592 could downregulate heat shock protein B8, whose expression is reduced during the expansion of rDPSCs. Furthermore, RNA-seq and bioinformatics analysis identified significant signaling pathways of miR-7a-5p and miR-592 in regulating osteogenic differentiation, including TNF, MAPK, and PI3K-Akt pathways. We conclude that upregulating miR-7a-5p and miR-592 suppresses the osteogenic differentiation of rDPSCs during their in vitro expansion, likely via TNF, MAPK, and PI3K-Akt pathways. The results may shed light on application of miR-7a-5p and miR-592 for maintaining osteo-differentiation potential in stem cells for bone regeneration and bone-related disease treatment.
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Affiliation(s)
| | | | - Shaomian Yao
- Corresponding author: Shaomian Yao, Ph.D., Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA, Tel: +1-225-578-9889, Fax: +1-225-578-9895,
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Labedz-Maslowska A, Bryniarska N, Kubiak A, Kaczmarzyk T, Sekula-Stryjewska M, Noga S, Boruczkowski D, Madeja Z, Zuba-Surma E. Multilineage Differentiation Potential of Human Dental Pulp Stem Cells-Impact of 3D and Hypoxic Environment on Osteogenesis In Vitro. Int J Mol Sci 2020; 21:ijms21176172. [PMID: 32859105 PMCID: PMC7504399 DOI: 10.3390/ijms21176172] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023] Open
Abstract
Human dental pulp harbours unique stem cell population exhibiting mesenchymal stem/stromal cell (MSC) characteristics. This study aimed to analyse the differentiation potential and other essential functional and morphological features of dental pulp stem cells (DPSCs) in comparison with Wharton’s jelly-derived MSCs from the umbilical cord (UC-MSCs), and to evaluate the osteogenic differentiation of DPSCs in 3D culture with a hypoxic microenvironment resembling the stem cell niche. Human DPSCs as well as UC-MSCs were isolated from primary human tissues and were subjected to a series of experiments. We established a multiantigenic profile of DPSCs with CD45−/CD14−/CD34−/CD29+/CD44+/CD73+/CD90+/CD105+/Stro-1+/HLA-DR− (using flow cytometry) and confirmed their tri-lineage osteogenic, chondrogenic, and adipogenic differentiation potential (using qRT-PCR and histochemical staining) in comparison with the UC-MSCs. The results also demonstrated the potency of DPSCs to differentiate into osteoblasts in vitro. Moreover, we showed that the DPSCs exhibit limited cardiomyogenic and endothelial differentiation potential. Decreased proliferation and metabolic activity as well as increased osteogenic differentiation of DPSCs in vitro, attributed to 3D cell encapsulation and low oxygen concentration, were also observed. DPSCs exhibiting elevated osteogenic potential may serve as potential candidates for a cell-based product for advanced therapy, particularly for bone repair. Novel tissue engineering approaches combining DPSCs, 3D biomaterial scaffolds, and other stimulating chemical factors may represent innovative strategies for pro-regenerative therapies.
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Affiliation(s)
- Anna Labedz-Maslowska
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
| | - Natalia Bryniarska
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Department of Experimental Neuroendocrinology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343 Krakow, Poland
| | - Andrzej Kubiak
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland
| | - Tomasz Kaczmarzyk
- Department of Oral Surgery, Faculty of Medicine, Jagiellonian University Medical College, 31-155 Krakow, Poland;
| | - Malgorzata Sekula-Stryjewska
- Laboratory of Stem Cell Biotechnology, Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Krakow, Poland;
| | - Sylwia Noga
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Laboratory of Stem Cell Biotechnology, Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Krakow, Poland;
| | | | - Zbigniew Madeja
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
| | - Ewa Zuba-Surma
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Correspondence: ; Tel.: +48-12-664-61-80
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8
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Sabbagh J, Ghassibe-Sabbagh M, Fayyad-Kazan M, Al-Nemer F, Fahed JC, Berberi A, Badran B. Differences in osteogenic and odontogenic differentiation potential of DPSCs and SHED. J Dent 2020; 101:103413. [PMID: 32585262 DOI: 10.1016/j.jdent.2020.103413] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/15/2020] [Accepted: 06/18/2020] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE Dental pulp stem cells (DPSCs) and stem cells from human exfoliated deciduous teeth (SHED) are types of human dental tissue-derived mesenchymal stem cells (MSCs) that have emerged as an interesting and promising source of stem cells in the field of tissue engineering. The aim of this work is to isolate stem cells from DPSCs and SHED, cultivate them in vitro and compare their odontogenic differentiation potential. METHODS DPSCs and SHED were extracted from molars, premolars and canines of six healthy subjects aged 5-29 years. The cells were characterized, using flow cytometry, for mesenchymal stem cell surface markers. MTT colorimetric assay was applied to assess cell viability. Alizarin red staining, alkaline phosphatase (ALP) activity, quantitative real-time PCR (qRT-PCR) and western blot were carried out to determine DPSCs and SHED osteogenic/odontogenic differentiation. RESULTS DPSCs express higher STRO-1 and CD44 levels compared to SHED. Moreover, the cells differentiate and acquire columnar shape with a level of calcium deposition and mineralization that is the same between DPSCs and SHED. ALP activity, ALP, COLI, DMP-1, DSPP, OC, and RUNX2 (osteogenic/odontogenic differentiation markers) expression levels were higher in DPSCs. CONCLUSIONS DPSCs and SHED express MSCs markers. Although both cell types had calcium deposits, DPSCs presented a higher ALP activity level. In addition, DPSCs showed higher levels of osteogenic and odontogenic differentiation markers such as COLI, DSPP, OC, RUNX2, and DMP-1. These results suggest that DPSCs are closer to the phenotype of odontoblasts than SHED and may improve the efficacy of human dental tissue-derived mesenchymal stem cells therapeutic protocols. 'CLINICAL SIGNIFICANCE' DPSCs are closer than t SHED to the phenotype of odontoblasts. This would be helpful to enable better therapeutic decisions when applying MSCs-based therapy in the field of dentistry.
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Affiliation(s)
- Joseph Sabbagh
- Department of Restorative Dentistry and Endodontics, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon.
| | - Michella Ghassibe-Sabbagh
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Mohammad Fayyad-Kazan
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon; Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Hadath- Beirut, Lebanon.
| | - Fatima Al-Nemer
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Hadath- Beirut, Lebanon.
| | - Jean Claude Fahed
- Department of Restorative Dentistry and Endodontics, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon.
| | - Antoine Berberi
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon.
| | - Bassam Badran
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Hadath- Beirut, Lebanon.
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Cristaldi M, Mauceri R, Campisi G, Pizzo G, Alessandro R, Tomasello L, Pitrone M, Pizzolanti G, Giordano C. Growth and Osteogenic Differentiation of Discarded Gingiva-Derived Mesenchymal Stem Cells on a Commercial Scaffold. Front Cell Dev Biol 2020; 8:292. [PMID: 32509773 PMCID: PMC7253652 DOI: 10.3389/fcell.2020.00292] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 04/03/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND In periodontal patients with jawbone resorption, the autologous bone graft is considered a "gold standard" procedure for the placing of dental prosthesis; however, this procedure is a costly intervention and poses the risk of clinical complications. Thanks to the use of adult mesenchymal stem cells, smart biomaterials, and active biomolecules, regenerative medicine and bone tissue engineering represent a valid alternative to the traditional procedures. AIMS In the past, mesenchymal stem cells isolated from periodontally compromised gingiva were considered a biological waste and discarded during surgical procedures. This study aims to test the osteoconductive activity of FISIOGRAFT Bone Granular® and Matriderm® collagen scaffolds on mesenchymal stem cells isolated from periodontally compromised gingiva as a low-cost and painless strategy of autologous bone tissue regeneration. MATERIALS AND METHODS We isolated human mesenchymal stem cells from 22 healthy and 26 periodontally compromised gingival biopsy tissues and confirmed the stem cell phenotype by doubling time assay, colony-forming unit assay, and expression of surface and nuclear mesenchymal stem cell markers, respectively by cytofluorimetry and real-time quantitative PCR. Healthy and periodontally compromised gingival mesenchymal stem cells were seeded on FISIOGRAFT Bone Granular® and Matriderm® scaffolds, and in vitro cell viability and bone differentiation were then evaluated. RESULTS Even though preliminary, the results demonstrate that FISIOGRAFT Bone Granular® is not suitable for in vitro growth and osteogenic differentiation of healthy and periodontally compromised mesenchymal stem cells, which, instead, are able to grow, homogeneously distribute, and bone differentiate in the Matriderm® collagen scaffold. CONCLUSION Matriderm® represents a biocompatible scaffold able to support the in vitro cell growth and osteodifferentiation ability of gingival mesenchymal stem cells isolated from waste gingiva, and could be employed to develop low-cost and painless strategy of autologous bone tissue regeneration.
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Affiliation(s)
- Marta Cristaldi
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Rodolfo Mauceri
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Giuseppina Campisi
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Giuseppe Pizzo
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Riccardo Alessandro
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Laura Tomasello
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Maria Pitrone
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Giuseppe Pizzolanti
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Carla Giordano
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
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10
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Bu NU, Lee HS, Lee BN, Hwang YC, Kim SY, Chang SW, Choi KK, Kim DS, Jang JH. In Vitro Characterization of Dental Pulp Stem Cells Cultured in Two Microsphere-Forming Culture Plates. J Clin Med 2020; 9:jcm9010242. [PMID: 31963371 PMCID: PMC7020027 DOI: 10.3390/jcm9010242] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 12/12/2022] Open
Abstract
Various three-dimensional (3D) culture methods have been introduced to overcome the limitations of in vitro culture and mimic in vivo conditions. This study aimed to evaluate two microsphere-forming culture methods and a monolayer culture method. We evaluated cell morphology, viability, osteo-, adipo-, and chondrogenic differentiation potential of dental pulp stem cells (DPSCs) cultured in 3D culture plates: ultra-low attachment (ULA) and U-bottomed StemFit 3D (SF) plates, and a two-dimensional (2D) monolayer plate. RNA sequencing (RNA-seq) revealed differentially expressed gene (DEG) profiles of the DPSCs. In contrast to an increasing pattern in the 2D group, cell viability in 3D groups (ULA and SF) showed a decreasing pattern; however, high multilineage differentiation was observed in both the 3D groups. RNA-seq showed significantly overexpressed gene ontology categories including angiogenesis, cell migration, differentiation, and proliferation in the 3D groups. Hierarchical clustering analysis revealed a similar DEG regulation pattern between the 3D groups; however, a comparatively different DEG was observed between the 2D and 3D groups. Taken together, this study shows that DPSCs cultured in microsphere-forming plates present superior multilineage differentiation capacities and demonstrate higher DEG expression in regeneration-related gene categories compared to that in DPSCs cultured in a conventional monolayer plate.
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Affiliation(s)
- Nam-Ung Bu
- Department of Conservative Dentistry, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Hyo-Seol Lee
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Bin-Na Lee
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwang-ju 61186, Korea
| | - Yun-Chan Hwang
- Department of Conservative Dentistry, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwang-ju 61186, Korea
| | - Sun-Young Kim
- Department of Conservative Dentistry and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, Korea
| | - Seok Woo Chang
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Kyoung-Kyu Choi
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Duck-Su Kim
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
| | - Ji-Hyun Jang
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul 02447, Korea
- Correspondence: ; Tel.: +82-2-958-9330
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11
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Mishra AH, Mishra D. Evidences of Biomimetic and Nonantibiotic Characteristics of the Zinc-Carboxymethyl Chitosan-Genipin Organometallic Complex and Its Biocompatibility Aspects. Biomacromolecules 2019; 21:688-700. [PMID: 31769678 DOI: 10.1021/acs.biomac.9b01391] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Bioinspired nonantibiotics can prove to be a better and an efficient tool to fight against antimicrobial resistance. In our study, biomaterial composed of zinc-carboxymethyl chitosan (CMC)-genipin was investigated for this purpose. Briefly, CMC was synthesized and transformed to porous scaffolds using the freeze drying method. The scaffolds were cross-linked and stabilized with genipin and zinc (2 M zinc acetate), respectively. FTIR spectroscopic data testified Zn complex formation and pointed out the absence of water molecule like that of zinc motif containing proteins. Hence, the complex may be termed as biomimetic. Genipin (0.5%) cross-linking appeared to contribute additively to the wet compressive strength of the zinc-CMC scaffolds. Biodegradation data revealed better stability of CMC-genipin-zinc scaffolds in enzymatic and nonenzymatic conditions than their redundant controls. The scaffolds seem to support adhesion and proliferation of human dental pulp stem cells and were hemocompatible to human red blood corpuscles, as revealed by scanning electron microscopy. The scaffolds were found to be antibacterial and mildly antibiofilm when tested against biofilm-forming bacteria, that is, Staphylococcus aureus (ATCC 9144), making it a potential nonantibiotic-like biomaterial. To conclude, this organometallic complex-based biomaterial may potentially serve as a weapon against antimicrobial resistance. Furthermore, the biomaterial potentially finds its application in dental, maxillofacial, and orthopedic tissue engineering applications.
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Affiliation(s)
- Arushi Hitendra Mishra
- Bioinspired Design Lab, School of Biosciences and Technology (SBST) , Vellore Institute of Technology (VIT) , Vellore 632014 , Tamil Nadu , India
| | - Debasish Mishra
- Bioinspired Design Lab, School of Biosciences and Technology (SBST) , Vellore Institute of Technology (VIT) , Vellore 632014 , Tamil Nadu , India
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12
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Di Carlo R, Zara S, Ventrella A, Siani G, Da Ros T, Iezzi G, Cataldi A, Fontana A. Covalent Decoration of Cortical Membranes with Graphene Oxide as a Substrate for Dental Pulp Stem Cells. Nanomaterials (Basel) 2019; 9:nano9040604. [PMID: 31013705 PMCID: PMC6523176 DOI: 10.3390/nano9040604] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 04/08/2019] [Indexed: 12/12/2022]
Abstract
(1) Background: The aim of this study was to optimize, through a cheap and facile protocol, the covalent functionalization of graphene oxide (GO)-decorated cortical membrane (Lamina®) in order to promote the adhesion, the growth and the osteogenic differentiation of DPSCs (Dental Pulp Stem Cells); (2) Methods: GO-coated Laminas were fully characterized by Scannsion Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) analyses. In vitro analyses of viability, membrane integrity and calcium phosphate deposition were performed; (3) Results: The GO-decorated Laminas demonstrated an increase in the roughness of Laminas, a reduction in toxicity and did not affect membrane integrity of DPSCs; and (4) Conclusions: The GO covalent functionalization of Laminas was effective and relatively easy to obtain. The homogeneous GO coating obtained favored the proliferation rate of DPSCs and the deposition of calcium phosphate.
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Affiliation(s)
- Roberta Di Carlo
- Department of Pharmacy, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Susi Zara
- Department of Pharmacy, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Alessia Ventrella
- Department of Pharmacy, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Gabriella Siani
- Department of Pharmacy, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Tatiana Da Ros
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy.
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Amelia Cataldi
- Department of Pharmacy, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
| | - Antonella Fontana
- Department of Pharmacy, University "G. d'Annunzio", Via dei Vestini, 66100 Chieti, Italy.
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13
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Kargozar S, Mozafari M, Hamzehlou S, Brouki Milan P, Kim H, Baino F. Bone Tissue Engineering Using Human Cells: A Comprehensive Review on Recent Trends, Current Prospects, and Recommendations. Applied Sciences 2019; 9:174. [DOI: 10.3390/app9010174] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The use of proper cells for bone tissue engineering remains a major challenge worldwide. Cells play a pivotal role in the repair and regeneration of the bone tissue in vitro and in vivo. Currently, a large number of differentiated (somatic) and undifferentiated (stem) cells have been used for bone reconstruction alone or in combination with different biomaterials and constructs (e.g., scaffolds). Although the results of the cell transplantation without any supporting or adjuvant material have been very effective with regard to bone healing. Recent advances in bone scaffolding are now becoming new players affecting the osteogenic potential of cells. In the present study, we have critically reviewed all the currently used cell sources for bone reconstruction and discussed the new horizons that are opening up in the context of cell-based bone tissue engineering strategies.
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14
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Mendi A, Ulutürk H, Ataç MS, Yılmaz D. Stem Cells for the Oromaxillofacial Area: Could they be a promising source for regeneration in dentistry? Adv Exp Med Biol 2019; 1144:101-121. [PMID: 30725365 DOI: 10.1007/5584_2018_327] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oromaxillofacial tissues (OMT) are composed of tooth and bone, together with nerves and blood vessels. Such a composite material is a huge source for mesenchymal stem cells (MSCs) that can be obtained with ease from extracted teeth, teeth structures and socket blood, flapped gingiva tissue, and mandibular/maxillar bone marrow. They offer a biological answer for restoring damaged dental tissues such as the regeneration of alveolar bone, prevention of pulp tissue defects, and dental structures. Dental tissue-derived mesenchymal stem cells share properties with bone marrow-derived mesenchymal stem cells and there is a considerable potential for these cells to be used in different stem cell-based therapies, such as bone and nerve regeneration. Dental pulp tissue might be a very good source for neurological disorders whereas gingiva-derived mesenchymal stem cells could be a good immune modulatory/suppressive mediators. OMT-MSCs is also promising candidates for regeneration of orofacial tissues from the perspective of developmental fate. Here, we review the fundamental biology and potential for future regeneration strategies of MSCs in oromaxillofacial research.
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Affiliation(s)
- Ayşegül Mendi
- Faculty of Dentistry, Department of Basic Sciences, Gazi University, Ankara, Turkey.
| | - Hacer Ulutürk
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
| | - Mustafa Sancar Ataç
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
| | - Derviş Yılmaz
- Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Gazi University, Ankara, Turkey
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15
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Anitua E, Troya M, Zalduendo M. Progress in the use of dental pulp stem cells in regenerative medicine. Cytotherapy 2018; 20:479-498. [PMID: 29449086 DOI: 10.1016/j.jcyt.2017.12.011] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/11/2017] [Accepted: 12/27/2017] [Indexed: 12/13/2022]
Abstract
The field of tissue engineering is emerging as a multidisciplinary area with promising potential for regenerating new tissues and organs. This approach requires the involvement of three essential components: stem cells, scaffolds and growth factors. To date, dental pulp stem cells have received special attention because they represent a readily accessible source of stem cells. Their high plasticity and multipotential capacity to differentiate into a large array of tissues can be explained by its neural crest origin, which supports applications beyond the scope of oral tissues. Many isolation, culture and cryopreservation protocols have been proposed that are known to affect cell phenotype, proliferation rate and differentiation capacity. The clinical applications of therapies based on dental pulp stem cells demand the development of new biomaterials suitable for regenerative purposes that can act as scaffolds to handle, carry and implant stem cells into patients. Currently, the development of xeno-free culture media is emerging as a means of standardization to improve safe and reproducibility. The present review aims to describe the current knowledge of dental pulp stem cells, considering in depth the key aspects related to the characterization, establishment, maintenance and cryopreservation of primary cultures and their involvement in the multilineage differentiation potential. The main clinical applications for these stem cells and their combination with several biomaterials is also covered.
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Affiliation(s)
- Eduardo Anitua
- BTI-Biotechnology Institute, Vitoria, Spain; University Institute for Regenerative Medicine and Oral Implantology UIRMI, UPV/EHU-Fundación Eduardo Anitua, Vitoria, Spain.
| | - María Troya
- BTI-Biotechnology Institute, Vitoria, Spain; University Institute for Regenerative Medicine and Oral Implantology UIRMI, UPV/EHU-Fundación Eduardo Anitua, Vitoria, Spain
| | - Mar Zalduendo
- BTI-Biotechnology Institute, Vitoria, Spain; University Institute for Regenerative Medicine and Oral Implantology UIRMI, UPV/EHU-Fundación Eduardo Anitua, Vitoria, Spain
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16
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Zhu Q, Gao J, Tian G, Tang Z, Tan Y. Adrenomedullin promotes the odontogenic differentiation of dental pulp stem cells through CREB/BMP2 signaling pathway. Acta Biochim Biophys Sin (Shanghai) 2017; 49:609-616. [PMID: 28541393 DOI: 10.1093/abbs/gmx053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Indexed: 01/25/2023] Open
Abstract
Adrenomedullin (AM) could promote the proliferation, the odontogenic differentiation and inhibit the apoptosis of dental pulp stem cells (DPSCs). AM in combination with DPSCs may be an effective strategy for pulp repair. However, there was no report on the mechanisms of AM in the odontogenic differentiation of DPSCs. The aim of this study is to investigate the molecular mechanisms through which AM promotes the odontogenic differentiation of DPSCs. Freshly extracted wisdom teeth were obtained from 27 patients. Cells at passage 3 to passage 5 were used in this study. DPSCs were treated with or without 10-7 M AM in Dulbecco's modified Eagle's medium culture, and then the accumulated calcium deposition was analyzed after 21 days by using alizarin red S staining. Odontogenic differentiation markers were determined by western blot analysis and quantitative real-time PCR. Western blot analysis results showed that AM had the capability of promoting the odontogenic differentiation of DPSCs and AM could enhance the phosphorylation of CREB and up-regulate the expression of BMP2. H89 is a CREB inhibitor which can inhibit the odontogenic differentiation of DPSCs through inhibiting the phosphorylation of CREB. Noggin could inhibit the odontogenic differentiation of DPSCs through inhibiting the activity of BMP2. These results indicated that AM could promote the odontogenic differentiation of DPSCs by upregulating the expression of BMP2 through the CREB signaling pathway.
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Affiliation(s)
- Qiang Zhu
- Department of Stomatology, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Jianyong Gao
- Department of Stomatology, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Gang Tian
- Department of Stomatology, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Zhen Tang
- Department of Stomatology, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Yinghui Tan
- Department of Stomatology, Xinqiao Hospital, the Third Military Medical University, Chongqing 400037, China
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17
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de Lima LAS, Lima KMG, de Oliveira LSS, Araújo AA, Fernandes de Araújo Junior R. Evaluation of the bony repair in rat cranial defect using near infrared reflectance spectroscopy and discriminant analysis. Biotechnol Prog 2017; 33:1160-1168. [DOI: 10.1002/btpr.2476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 12/30/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Leomir A. S. de Lima
- Div. of Analytical Chemistry, Inst. of Chemistry, Biological Chemistry and Chemometrics; Federal University of Rio Grande do Norte; Natal RN 59072-970 Brazil
| | - Kássio M. G. Lima
- Div. of Analytical Chemistry, Inst. of Chemistry, Biological Chemistry and Chemometrics; Federal University of Rio Grande do Norte; Natal RN 59072-970 Brazil
| | - Lana S. S. de Oliveira
- Dept. of Biophysics and Pharmacology; Post-graduation programme in Public Health/Post graduation programme in Pharmaceutical Science, Federal University of Rio Grande do Norte; Natal RN 59072-970 Brazil
| | - Aurigena A. Araújo
- Dept. of Biophysics and Pharmacology; Post-graduation programme in Public Health/Post graduation programme in Pharmaceutical Science, Federal University of Rio Grande do Norte; Natal RN 59072-970 Brazil
| | - Raimundo Fernandes de Araújo Junior
- Dept. of Morphology, Post-graduation programme in Health Science/Post graduation programme in Structural and Functional Biology; Federal University of Rio Grande do Norte; Natal RN 59072-970 Brazil
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18
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Yasui T, Mabuchi Y, Morikawa S, Onizawa K, Akazawa C, Nakagawa T, Okano H, Matsuzaki Y. Isolation of dental pulp stem cells with high osteogenic potential. Inflamm Regen 2017; 37:8. [PMID: 29259707 PMCID: PMC5725894 DOI: 10.1186/s41232-017-0039-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 02/23/2017] [Indexed: 01/05/2023] Open
Abstract
Dental pulp stem cells/progenitor cells (DPSCs) can be easily obtained and can have excellent proliferative and mineralization potentials. Therefore, many studies have investigated the isolation and bone formation of DPSCs. In most previous reports, human DPSCs were traditionally isolated by exploiting their ability to adhere to plastic tissue culture dishes. DPSCs isolated by plastic adherence are frequently contaminated by other cells, which limits the ability to investigate their basic biology and regenerative properties. Additionally, the proliferative and osteogenic potentials vary depending on the isolated cells. It is very difficult to obtain cells of a sufficient quality to elicit the required effect upon transplantation. Considering clinical applications, stem cells used for regenerative medicine need to be purified in order to increase the efficiency of bone regeneration, and a stable supply of these cells must be generated. Here, we review the purification of DPSCs and studies of cranio-maxillofacial bone regeneration using these cells. Additionally, we introduce the prospective isolation of DPSCs using specific cell surface markers: low-affinity nerve growth factor and thymocyte antigen 1.
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Affiliation(s)
- Takazumi Yasui
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Dentistry and Oral Surgery, Kawasaki Municipal Kawasaki Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa 210-0013 Japan
| | - Yo Mabuchi
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Biochemistry and Biophysics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510 Japan
| | - Satoru Morikawa
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Katsuhiro Onizawa
- Department of Dentistry and Oral Surgery, Kawasaki Municipal Kawasaki Hospital, 12-1 Shinkawadori, Kawasaki-ku, Kawasaki, Kanagawa 210-0013 Japan
| | - Chihiro Akazawa
- Department of Biochemistry and Biophysics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-8510 Japan
| | - Taneaki Nakagawa
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Yumi Matsuzaki
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan.,Department of Cancer Biology, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo, Shimane 693-8501 Japan
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19
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Paduano F, Marrelli M, Alom N, Amer M, White LJ, Shakesheff KM, Tatullo M. Decellularized bone extracellular matrix and human dental pulp stem cells as a construct for bone regeneration. Journal of Biomaterials Science, Polymer Edition 2017; 28:730-748. [DOI: 10.1080/09205063.2017.1301770] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | | | - Noura Alom
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Mahetab Amer
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Lisa J. White
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | | | - Marco Tatullo
- Tecnologica Research Institute, Biomedical Section, Crotone, Italy
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20
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Louvrier A, Euvrard E, Nicod L, Rolin G, Gindraux F, Pazart L, Houdayer C, Risold PY, Meyer F, Meyer C. Odontoblastic differentiation of dental pulp stem cells from healthy and carious teeth on an original PCL-based 3D scaffold. Int Endod J 2017; 51 Suppl 4:e252-e263. [PMID: 28109162 DOI: 10.1111/iej.12746] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 01/17/2017] [Indexed: 01/09/2023]
Abstract
AIMS To isolate and characterize dental pulp stem cells (DPSCs) obtained from carious and healthy mature teeth extracted when conservative treatment was not possible or for orthodontic reasons; to evaluate the ability of DPSCs to colonize, proliferate and differentiate into functional odontoblast-like cells when cultured onto a polycaprolactone cone made by jet-spraying and prototyped into a design similar to a gutta-percha cone. METHODOLOGY DPSCs were obtained from nine carious and 12 healthy mature teeth. Then cells were characterized by flow cytometry and submitted to multidifferentiation to confirm their multipotency. These DPSCs were then cultured on a polycaprolactone cone in an odontoblastic differentiation medium. Cell proliferation, colonization of the biomaterial and functional differentiation of cells were histologically assessed. For the characterization, a t-Student test was used to compare the two groups. RESULTS In all cell cultures, characterization highlighted a mesenchymal stem cell phenotype (CD105+, CD90+, CD73+, CD11b-, CD34-, CD45-, HLA-DR-). No significant differences were found between cultures obtained from carious and healthy mature teeth. DPSCs from both origins were able to differentiate into osteocytes, adipocytes and chondrocytes. Cell colonization was observed both on the surface and in the thickness of polycaprolactone cones as well as a mineralized pericellular matrix deposit composed of type I collagen, alkaline phosphatase, osteocalcin and dentin sialophosphoprotein. CONCLUSIONS DPSCs were isolated from both carious and healthy mature teeth. They were able to colonize and proliferate within a polycaprolactone cone and could be differentiated into functional odontoblast-like cells.
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Affiliation(s)
- A Louvrier
- Service de Chirurgie Maxillo-faciale, Stomatologie et Odontologie Hospitalière, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | - E Euvrard
- Service de Chirurgie Maxillo-faciale, Stomatologie et Odontologie Hospitalière, Centre Hospitalier Universitaire de Besançon, Besançon, France.,Nanomédecinelab, EA 4662, UFR SMP, Université de Franche-Comté, Besançon, France
| | - L Nicod
- Nanomédecinelab, EA 4662, UFR SMP, Université de Franche-Comté, Besançon, France
| | - G Rolin
- Centre d'Investigation Clinique de Besançon, INSERM 1431, Centre Hospitalier Régional Universitaire de Besançon, Besançon, France
| | - F Gindraux
- Nanomédecinelab, EA 4662, UFR SMP, Université de Franche-Comté, Besançon, France.,Service de Chirurgie Orthopédique, Traumatologique et Plastique, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | - L Pazart
- Centre d'Investigation Clinique de Besançon, INSERM 1431, Centre Hospitalier Régional Universitaire de Besançon, Besançon, France
| | - C Houdayer
- Estrogènes, Expression Génique et Pathologies du Système Nerveux Central, EA3922, UFR ST, Université de Franche-Comté, Besançon, France
| | - P Y Risold
- Estrogènes, Expression Génique et Pathologies du Système Nerveux Central, EA3922, UFR ST, Université de Franche-Comté, Besançon, France
| | - F Meyer
- Inserm UMR 1121 Biomaterials and Bioengineering, FMTS, Université de Strasbourg, Strasbourg, France.,Institut Hospitalo Universitaire, Pôle de médecine et chirurgie bucco-dentaires, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - C Meyer
- Service de Chirurgie Maxillo-faciale, Stomatologie et Odontologie Hospitalière, Centre Hospitalier Universitaire de Besançon, Besançon, France.,Nanomédecinelab, EA 4662, UFR SMP, Université de Franche-Comté, Besançon, France
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21
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Yun HM, Kang SK, Singh RK, Lee JH, Lee HH, Park KR, Yi JK, Lee DW, Kim HW, Kim EC. Magnetic nanofiber scaffold-induced stimulation of odontogenesis and pro-angiogenesis of human dental pulp cells through Wnt/MAPK/NF-κB pathways. Dent Mater 2016; 32:1301-1311. [PMID: 27634479 DOI: 10.1016/j.dental.2016.06.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 05/07/2016] [Accepted: 06/22/2016] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Magnetic biomaterials have recently gained great attention due to their some intriguing cell and tissue responses. However, little attention has been given to the fields of dental tissue regeneration. In this sense, we aim to investigate the effects of magnetic nanofiber scaffolds on the human dental pulp cell (HDPC) behaviors and to elucidate the underlying signaling mechanisms in the events. METHODS Magnetic nanofiber scaffolds incorporating magnetic nanoparticles at varying contents were prepared into nanofibrous matrices to cultivate cells. Cell growth by MTS assay, odontoblastic differentiation by alkaline phosphatase (ALP) activity, mineralization, and the mRNA expression of differentiation-related genes of HDPCs, in vitro angiogenesis by migration and capillary tube formation in endothelial cells on the conditioned medium obtained from HDPSCs in the presence or absence of scaffolds. Western blot analysis and confocal immunofluorescene were used to asses signaling pathways. RESULTS The growth of HDPCs was significantly enhanced on the magnetic scaffolds with respect to the non-magnetic counterpart. The odontogenic differentiation of cells was significantly up-regulated by the culture with magnetic scaffolds. Furthermore, the magnetic scaffolds promoted the HDPC-induced angiogenesis of endothelial cells. The expression of signaling molecules, Wnt3a, phosphorylated GSK-3β and nuclear β-catenin, was substantially stimulated by the magnetic scaffolds; in parallel, the MAPK and NF-κB were highly activated when cultured on the magnetic nanofiber scaffolds. SIGNIFICANCE This study is the first to demonstrate that magnetic nanofiber scaffolds stimulate HDPCs in the events of growth, odontogenic differentiation, and pro-angiogenesis, and the findings imply the novel scaffolds can be potentially useful as dentin-pulp regenerative matrices.
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Affiliation(s)
- Hyung-Mun Yun
- Department of Oral and Maxillofacial Pathology, School of Dentistry and Research Center for Tooth & Periodontal Regeneration (MRC), Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Soo-Kyung Kang
- Department of Conservative Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Rajendra K Singh
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Kyung-Ran Park
- Department of Oral and Maxillofacial Pathology, School of Dentistry and Research Center for Tooth & Periodontal Regeneration (MRC), Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Jin-Kyu Yi
- Department of Oral Medicine, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Deok-Won Lee
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea.
| | - Eun-Cheol Kim
- Department of Oral and Maxillofacial Pathology, School of Dentistry and Research Center for Tooth & Periodontal Regeneration (MRC), Kyung Hee University, Seoul 130-701, Republic of Korea.
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22
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Abstract
Extracellular matrix (ECM) proteins are structural elements of tissue and also potent signaling molecules. Previously, our laboratory showed that ECM of 2D coatings can trigger differentiation of bone marrow-derived mesenchymal stem cells (MSCs) into mesodermal lineages in an ECM-specific manner over 14 days, in some cases comparable to chemical induction. To test whether a similar effect was possible in a 3D, tissue-like environment, we designed a synthetic-natural biomaterial composite. The composite can present whole-molecule ECM proteins to cells, even those that do not spontaneously form hydrogels ex vivo, in 3D. To this end, we entrapped collagen type I, laminin-111, or fibronectin in ECM composites with MSCs and directly compared markers of mesodermal differentiation including cardiomyogenic (ACTC1), osteogenic (SPP1), adipogenic (PPARG), and chondrogenic (SOX9) in 2D versus 3D. We found the 3D condition largely mimicked the 2D condition such that the addition of type I collagen was the most potent inducer of differentiation to all lineages tested. One notable difference between 2D and 3D was pronounced adipogenic differentiation in 3D especially in the presence of exogenous collagen type I. In particular, PPARG gene expression was significantly increased ∼16-fold relative to chemical induction, in 3D and not in 2D. Unexpectedly, 3D engagement of ECM proteins also altered immunomodulatory function of MSCs in that expression of IL-6 gene was elevated relative to basal levels in 2D. In fact, levels of IL-6 gene expression in 3D composites containing exogenously supplied collagen type I or fibronectin were statistically similar to levels attained in 2D with tumor necrosis factor-α (TNF-α) stimulation and these levels were sustained over a 2-week period. Thus, this novel biomaterial platform allowed us to compare the biochemical impact of whole-molecule ECM proteins in 2D versus 3D indicating enhanced adipogenic differentiation and IL-6 expression of MSC in the 3D context. Exploiting the biochemical impact of ECM proteins on MSC differentiation and immunomodulation could augment the therapeutic utility of MSCs.
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Affiliation(s)
- Jangwook P Jung
- Department of Biomedical Engineering, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Stem Cell Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota
| | - Meredith K Bache-Wiig
- Department of Biomedical Engineering, University of Minnesota-Twin Cities , Minneapolis, Minnesota
| | - Paolo P Provenzano
- Department of Biomedical Engineering, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Stem Cell Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Institute for Engineering in Medicine, University of Minnesota-Twin Cities, Minneapolis, Minnesota
| | - Brenda M Ogle
- Department of Biomedical Engineering, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Stem Cell Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Institute for Engineering in Medicine, University of Minnesota-Twin Cities, Minneapolis, Minnesota.; Lillehei Heart Institute, University of Minnesota-Twin Cities, Minneapolis, Minnesota
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Teti G, Salvatore V, Focaroli S, Durante S, Mazzotti A, Dicarlo M, Mattioli-Belmonte M, Orsini G. In vitro osteogenic and odontogenic differentiation of human dental pulp stem cells seeded on carboxymethyl cellulose-hydroxyapatite hybrid hydrogel. Front Physiol 2015; 6:297. [PMID: 26578970 PMCID: PMC4621309 DOI: 10.3389/fphys.2015.00297] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 10/08/2015] [Indexed: 01/09/2023] Open
Abstract
Stem cells from human dental pulp have been considered as an alternative source of adult stem cells in tissue engineering because of their potential to differentiate into multiple cell lineages. Recently, polysaccharide based hydrogels have become especially attractive as matrices for the repair and regeneration of a wide variety of tissues and organs. The incorporation of inorganic minerals as hydroxyapatite nanoparticles can modulate the performance of the scaffolds with potential applications in tissue engineering. The aim of this study was to verify the osteogenic and odontogenic differentiation of dental pulp stem cells (DPSCs) cultured on a carboxymethyl cellulose—hydroxyapatite hybrid hydrogel. Human DPSCs were seeded on carboxymethyl cellulose—hydroxyapatite hybrid hydrogel and on carboxymethyl cellulose hydrogel for 1, 3, 5, 7, 14, and 21 days. Cell viability assay and ultramorphological analysis were carried out to evaluate biocompatibility and cell adhesion. Real Time PCR was carried out to demonstrate the expression of osteogenic and odontogenic markers. Results showed a good adhesion and viability in cells cultured on carboxymethyl cellulose—hydroxyapatite hybrid hydrogel, while a low adhesion and viability was observed in cells cultured on carboxymethyl cellulose hydrogel. Real Time PCR data demonstrated a temporal up-regulation of osteogenic and odontogenic markers in dental pulp stem cells cultured on carboxymethyl cellulose—hydroxyapatite hybrid hydrogel. In conclusion, our in vitro data confirms the ability of DPSCs to differentiate toward osteogenic and odontogenic lineages in presence of a carboxymethyl cellulose—hydroxyapatite hybrid hydrogel. Taken together, our results provide evidence that DPSCs and carboxymethyl cellulose—hydroxyapatite hybrid hydrogel could be considered promising candidates for dental pulp complex and periodontal tissue engineering.
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Affiliation(s)
- Gabriella Teti
- Department of Biomedical and Neuromotor Sciences, University of Bologna Bologna, Italy
| | - Viviana Salvatore
- Department of Biomedical and Neuromotor Sciences, University of Bologna Bologna, Italy
| | - Stefano Focaroli
- Department of Biomedical and Neuromotor Sciences, University of Bologna Bologna, Italy
| | - Sandra Durante
- Department of Biomedical and Neuromotor Sciences, University of Bologna Bologna, Italy
| | - Antonio Mazzotti
- 1st Orthopaedic and Traumatologic Clinic, Rizzoli Orthopedic Institute Bologna, Italy
| | - Manuela Dicarlo
- Department of Clinical and Molecular Sciences, Polytechnic University of Marche Ancona, Italy
| | | | - Giovanna Orsini
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche Ancona, Italy
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Kumar S, Azam D, Raj S, Kolanthai E, Vasu K, Sood A, Chatterjee K. 3D scaffold alters cellular response to graphene in a polymer composite for orthopedic applications. J Biomed Mater Res B Appl Biomater 2015; 104:732-49. [DOI: 10.1002/jbm.b.33549] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 09/02/2015] [Accepted: 09/17/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Sachin Kumar
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India
| | - Dilkash Azam
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India
| | - Shammy Raj
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India
| | - Elayaraja Kolanthai
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India
| | - K.S. Vasu
- Department of Physics; Indian Institute of Science; Bangalore 560012 India
| | - A.K. Sood
- Department of Physics; Indian Institute of Science; Bangalore 560012 India
| | - Kaushik Chatterjee
- Department of Materials Engineering; Indian Institute of Science; Bangalore 560012 India
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Mastrangelo F, Quaresima R, Grilli A, Tettamanti L, Vinci R, Sammartino G, Tetè S, Gherlone E. A comparison of bovine bone and hydroxyapatite scaffolds during initial bone regeneration: an in vitro evaluation. IMPLANT DENT 2015; 22:613-22. [PMID: 24185465 DOI: 10.1097/id.0b013e3182a69858] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To evaluate the different behavior of 3-dimensional biomaterial scaffolds-Bovine Bone (BB; Bio-Oss) and Hydroxyapatite (HA; ENGIpore)-during initial bone healing and development. MATERIALS AND METHODS Human dental papilla stem cells (hDPaSCs) were selected with FACsorter cytofluorimetric analysis, cultured with osteogenic medium, and analyzed with Alizarin red stained after differentiation. The obtained osteoblast-like cells (OCs) were cultured with BB and HA. alkaline phosphatase (ALP), OC, MEPE, and runt-related transcription factor 2 (RUNX2) expression markers were investigated performing Western blot and reverse transcription-polymerase chain reaction (RT-PCR) analysis. After 40 days, samples were analyzed by light and electron microscopy. RESULTS All the samples showed high in vitro biocompatibility and qualitative differences of OCs adhesion. RT-PCR and Western blot data exhibited similar marker rate, but ALP, OC, MEPE, and RUNX2expression, during initial healing and bone regeneration phase, was higher and faster in human dental papilla onto BB than in HA scaffolds. In biomaterials growth, RUNX2 seems to play an important role as a key regulator in human OCs from dental papilla bone development. CONCLUSION Different surface BB scaffold characteristics seem to play a critical role in OCs differentiation showing different time of bone regeneration morphological characteristics as well as higher and faster levels of all observed markers.
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Affiliation(s)
- Filiberto Mastrangelo
- *Young Researcher, Department of Oral Medical Science and Biotechnology, University of Chieti, Chieti, Italy. †Associate Professor of Biomaterial Engineering, Department of Civil Engineering, Architecture and Environment, University of L'Aquila, L'Aquila, Italy. ‡Ordinary Professor of Biology, Department of Oral Medical Science and Biotechnology, University of Chieti, Chieti, Italy; Leonardo da Vinci Telematic University, Torrevecchia Teatina (Chieti), Chieti, Italy. §Researcher of Pedodontics and Orthodontics, Department of Oral Science, Insubria University of Varese, Varese, Italy. ‖Maxillofacial Surgeon, Department of Oral Science, University Vita e Salute Milano, Milan, Italy. ¶Associate Professor of Maxillofacial Surgery, Department of Surgical Science, University Federico II Napoli, Naples, Italy. #Associate Professor of Oral Surgery, Department of Oral Medical Science and Biotechnology, University of Chieti, Chieti, Italy. **Ordinary Professor and Dean of Oral and Maxillofacial Surgery, Department of Oral Science, University Vita e Salute Milano, Milan, Italy
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Del Angel-Mosqueda C, Gutiérrez-Puente Y, López-Lozano AP, Romero-Zavaleta RE, Mendiola-Jiménez A, Medina-De la Garza CE, Márquez-M M, De la Garza-Ramos MA. Epidermal growth factor enhances osteogenic differentiation of dental pulp stem cells in vitro. Head Face Med 2015; 11:29. [PMID: 26334535 PMCID: PMC4558932 DOI: 10.1186/s13005-015-0086-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 08/17/2015] [Indexed: 01/09/2023] Open
Abstract
Introduction Epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) play an important role in extracellular matrix mineralization, a complex process required for proper bone regeneration, one of the biggest challenges in dentistry. The purpose of this study was to evaluate the osteogenic potential of EGF and bFGF on dental pulp stem cells (DPSCs). Material and methods Human DPSCs were isolated using CD105 magnetic microbeads and characterized by flow cytometry. To induce osteoblast differentiation, the cells were cultured in osteogenic medium supplemented with EGF or bFGF at a low concentration. Cell morphology and expression of CD146 and CD10 surface markers were analyzed using fluorescence microscopy. To measure mineralization, an alizarin red S assay was performed and typical markers of osteoblastic phenotype were evaluated by RT-PCR. Results EGF treatment induced morphological changes and suppression of CD146 and CD10 markers. Additionally, the cells were capable of producing calcium deposits and increasing the mRNA expression to alkaline phosphatase (ALP) and osteocalcin (OCN) in relation to control groups (p < 0.001). However, bFGF treatment showed an inhibitory effect. Conclusion These data suggests that DPSCs in combination with EGF could be an effective stem cell-based therapy for bone tissue engineering applications in periodontics and oral implantology.
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Affiliation(s)
- Casiano Del Angel-Mosqueda
- Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México. .,Instituto de Biotecnología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México. .,Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.
| | - Yolanda Gutiérrez-Puente
- Instituto de Biotecnología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México. .,Departamento de Química, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México.
| | - Ada Pricila López-Lozano
- Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México. .,Instituto de Biotecnología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México. .,Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.
| | - Ricardo Emmanuel Romero-Zavaleta
- Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.
| | | | - Carlos Eduardo Medina-De la Garza
- Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México. .,Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.
| | - Marcela Márquez-M
- Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México. .,Department of Oncology-Pathology, CCK, Karolinska Institutet, Stockholm, Sweden.
| | - Myriam Angélica De la Garza-Ramos
- Unidad de Odontología Integral y Especialidades, Centro de Investigación y Desarrollo en Ciencias de la Salud, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México. .,Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México.
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Pisciotta A, Riccio M, Carnevale G, Lu A, De Biasi S, Gibellini L, La Sala GB, Bruzzesi G, Ferrari A, Huard J, De Pol A. Stem cells isolated from human dental pulp and amniotic fluid improve skeletal muscle histopathology in mdx/SCID mice. Stem Cell Res Ther 2015; 6:156. [PMID: 26316011 PMCID: PMC4552417 DOI: 10.1186/s13287-015-0141-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 05/07/2015] [Accepted: 07/30/2015] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION Duchenne muscular dystrophy (DMD), caused by a lack of the functional structural protein dystrophin, leads to severe muscle degeneration where the patients are typically wheelchair-bound and die in their mid-twenties from cardiac or respiratory failure or both. The aim of this study was to investigate the potential of human dental pulp stem cells (hDPSCs) and human amniotic fluid stem cells (hAFSCs) to differentiate toward a skeletal myogenic lineage using several different protocols in order to determine the optimal conditions for achieving myogenic commitment and to subsequently evaluate their contribution in the improvement of the pathological features associated with dystrophic skeletal muscle when intramuscularly injected into mdx/SCID mice, an immune-compromised animal model of DMD. METHODS Human DPSCs and AFSCs were differentiated toward myogenic lineage in vitro through the direct co-culture with a myogenic cell line (C2C12 cells) and through a preliminary demethylation treatment with 5-Aza-2'-deoxycytidine (5-Aza), respectively. The commitment and differentiation of both hDPSCs and hAFSCs were evaluated by immunofluorescence and Western blot analysis. Subsequently, hDPSCs and hAFSCs, preliminarily demethylated and pre-differentiated toward a myogenic lineage for 2 weeks, were injected into the dystrophic gastrocnemius muscles of mdx/SCID mice. After 1, 2, and 4 weeks, the gastrocnemius muscles were taken for immunofluorescence and histological analyses. RESULTS Both populations of cells engrafted within the host muscle of mdx/SCID mice and through a paracrine effect promoted angiogenesis and reduced fibrosis, which eventually led to an improvement of the histopathology of the dystrophic muscle. CONCLUSION This study shows that hAFSCs and hDPSCs represent potential sources of stem cells for translational strategies to improve the histopathology and potentially alleviate the muscle weakness in patients with DMD.
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Affiliation(s)
- Alessandra Pisciotta
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, via del Pozzo 71, 41124, Modena, Italy.
| | - Massimo Riccio
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, via del Pozzo 71, 41124, Modena, Italy.
| | - Gianluca Carnevale
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, via del Pozzo 71, 41124, Modena, Italy.
| | - Aiping Lu
- Stem Cell Research Center, Department of Orthopaedic Surgery, University of Pittsburgh, 450 Technology Drive, Bridgeside Point II, Suite 206, 15219, Pittsburgh, PA, USA.
| | - Sara De Biasi
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, via del Pozzo 71, 41124, Modena, Italy.
| | - Lara Gibellini
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, via del Pozzo 71, 41124, Modena, Italy.
| | - Giovanni B La Sala
- Department of Obstetrics and Gynecology, Arcispedale Santa Maria Nuova, viale Risorgimento 80, 42123, Reggio Emilia, Italy.
| | - Giacomo Bruzzesi
- Oro-Maxillo-Facial Department, AUSL Baggiovara, via Giardini 1355, 41126, Modena, Baggiovara, Italy.
| | - Adriano Ferrari
- Department of Biomedical, Metabolic and Neuroscience, University of Modena and Reggio Emilia, Children Rehabilitation Special Unit, IRCCS Arcispedale Santa Maria Nuova, viale Risorgimento 80, 42123, Reggio Emilia, Italy.
| | - Johnny Huard
- Stem Cell Research Center, Department of Orthopaedic Surgery, University of Pittsburgh, 450 Technology Drive, Bridgeside Point II, Suite 206, 15219, Pittsburgh, PA, USA.
| | - Anto De Pol
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, via del Pozzo 71, 41124, Modena, Italy.
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Maraldi T, Guida M, Zavatti M, Resca E, Bertoni L, La Sala GB, De Pol A. Nuclear Nox4 Role in Stemness Power of Human Amniotic Fluid Stem Cells. Oxid Med Cell Longev 2015; 2015:101304. [PMID: 26273418 DOI: 10.1155/2015/101304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 12/16/2014] [Accepted: 12/24/2014] [Indexed: 11/25/2022]
Abstract
Human amniotic fluid stem cells (AFSC) are an attractive source for cell therapy due to their multilineage differentiation potential and accessibility advantages. However the clinical application of human stem cells largely depends on their capacity to expand in vitro, since there is an extensive donor-to-donor heterogeneity. Reactive oxygen species (ROS) and cellular oxidative stress are involved in many physiological and pathophysiological processes of stem cells, including pluripotency, proliferation, differentiation, and stress resistance. The mode of action of ROS is also dependent on the localization of their target molecules. Thus, the modifications induced by ROS can be separated depending on the cellular compartments they affect. NAD(P)H oxidase family, particularly Nox4, has been known to produce ROS in the nucleus. In the present study we show that Nox4 nuclear expression (nNox4) depends on the donor and it correlates with the expression of transcription factors involved in stemness regulation, such as Oct4, SSEA-4, and Sox2. Moreover nNox4 is linked with the nuclear localization of redox sensitive transcription factors, as Nrf2 and NF-κB, and with the differentiation potential. Taken together, these results suggest that nNox4 regulation may have important effects in stem cell capability through modulation of transcription factors and DNA damage.
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Pisciotta A, Carnevale G, Meloni S, Riccio M, De Biasi S, Gibellini L, Ferrari A, Bruzzesi G, De Pol A. Human dental pulp stem cells (hDPSCs): isolation, enrichment and comparative differentiation of two sub-populations. BMC Dev Biol 2015; 15:14. [PMID: 25879198 DOI: 10.1186/s12861-015-0065-x] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 02/27/2015] [Indexed: 02/07/2023]
Abstract
Background Human dental pulp represents a suitable alternative source of stem cells for the purpose of cell-based therapies in regenerative medicine, because it is relatively easy to obtain it, using low invasive procedures. This study characterized and compared two subpopulations of adult stem cells derived from human dental pulp (hDPSCs). Human DPSCs, formerly immune-selected for STRO-1 and c-Kit, were separated for negativity and positivity to CD34 expression respectively, and evaluated for cell proliferation, stemness maintenance, cell senescence and multipotency. Results The STRO-1+/c-Kit+/CD34+ hDPSCs showed a slower proliferation, gradual loss of stemness, early cell senescence and apoptosis, compared to STRO-1+/c-Kit+/CD34− hDPSCs. Both the subpopulations demonstrated similar abilities to differentiate towards mesoderm lineages, whereas a significant difference was observed after the neurogenic induction, with a greater commitment of STRO-1+/c-Kit+/CD34+ hDPSCs. Moreover, undifferentiated STRO-1+/c-Kit+/CD34− hDPSCs did not show any expression of CD271 and nestin, typical neural markers, while STRO-1+/c-Kit+/CD34+ hDPSCs expressed both. Conclusions These results suggest that STRO-1+/c-Kit+/CD34− hDPSCs and STRO-1+/c-Kit+/CD34+ hDPSCs might represent two distinct stem cell populations, with different properties. These results trigger further analyses to deeply investigate the hypothesis that more than a single stem cell population resides within the dental pulp, to better define the flexibility of application of hDPSCs in regenerative medicine.
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Petridis X, Diamanti E, Trigas GC, Kalyvas D, Kitraki E. Bone regeneration in critical-size calvarial defects using human dental pulp cells in an extracellular matrix-based scaffold. J Craniomaxillofac Surg 2015; 43:483-90. [PMID: 25753474 DOI: 10.1016/j.jcms.2015.02.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 01/23/2015] [Accepted: 02/02/2015] [Indexed: 02/02/2023] Open
Abstract
The rat calvarial defect is an established model to evaluate craniofacial bone regeneration using cell-scaffold biocomplexes. Dental pulp harbors stem cells with significant osteogenic properties. Extracellular matrix (ECM)-like scaffolds simulate the environment that cells observe in vivo. In the present study, we evaluated the osteogenic effect of a biocomplex of human dental pulp cells and a hyaluronic-based hydrogel scaffold in calvarial defects of immunocompetent rats. Dental pulp cells at the 2nd passage were characterized by flow cytometry, osteodifferentiated ex vivo for 4 days and the whole population was encapsulated in the synthetic ECM matrix. Cell vitality was verified 24 h upon encapsulation. 5 mm calvarial defects were created in 30 male rats and filled with the biocomplex, the scaffold alone, or left untreated. Histological evaluation at 8 weeks showed incomplete bone regeneration in all groups. The scaffold was not fully degraded and entrapped cells were detected in it. Histomorphometry showed statistically significant superior new bone formation in the biocomplex-treated group, compared to the two other groups. The present study provides evidence that the whole population of human dental pulp cells can advance bone healing when transplanted in immunocompetent animals and highlights the importance of proper scaffold degradation in cell-driven bioengineering treatments.
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Affiliation(s)
- Xenos Petridis
- Department of Endodontics, School of Dentistry, National and Kapodistrian University of Athens (NKUA), Greece
| | - Evangelia Diamanti
- Department of Basic Sciences and Oral Biology, School of Dentistry, NKUA, Greece
| | - George Ch Trigas
- Department of Histology and Embryology, School of Medicine, NKUA, Greece
| | - Demos Kalyvas
- Department of Oral and Maxillofacial Surgery, School of Dentistry, NKUA, Greece
| | - Efthymia Kitraki
- Department of Basic Sciences and Oral Biology, School of Dentistry, NKUA, Greece.
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Resca E, Zavatti M, Maraldi T, Bertoni L, Beretti F, Guida M, La Sala G, Guillot P, David A, Sebire N, De Pol A, De Coppi P. Enrichment in c-Kit improved differentiation potential of amniotic membrane progenitor/stem cells. Placenta 2015; 36:18-26. [DOI: 10.1016/j.placenta.2014.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/31/2014] [Accepted: 11/03/2014] [Indexed: 12/15/2022]
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Guida M, Maraldi T, Beretti F, Follo MY, Manzoli L, De Pol A. Nuclear Nox4-derived reactive oxygen species in myelodysplastic syndromes. Biomed Res Int 2014; 2014:456937. [PMID: 24719867 DOI: 10.1155/2014/456937] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 01/21/2014] [Indexed: 12/25/2022]
Abstract
A role for intracellular ROS production has been recently implicated in the pathogenesis and progression of a wide variety of neoplasias. ROS sources, such as NAD(P)H oxidase (Nox) complexes, are frequently activated in AML (acute myeloid leukemia) blasts and strongly contribute to their proliferation, survival, and drug resistance. Myelodysplastic syndromes (MDS) comprise a heterogeneous group of disorders characterized by ineffective hematopoiesis, with an increased propensity to develop AML. The molecular basis for MDS progression is unknown, but a key element in MDS disease progression is the genomic instability. NADPH oxidases are now recognized to have specific subcellular localizations, this targeting to specific compartments for localized ROS production. Local Nox-dependent ROS production in the nucleus may contribute to the regulation of redox-dependent cell growth, differentiation, senescence, DNA damage, and apoptosis. We observed that Nox1, 2, and 4 isoforms and p22phox and Rac1 subunits are expressed in MDS/AML cell lines and MDS samples, also in the nuclear fractions. Interestingly, Nox4 interacts with ERK and Akt1 within nuclear speckle domain, suggesting that Nox4 could be involved in regulating gene expression and splicing factor activity. These data contribute to the elucidation of the molecular mechanisms used by nuclear ROS to drive MDS evolution to AML.
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Guida M, Maraldi T, Resca E, Beretti F, Zavatti M, Bertoni L, La Sala GB, De Pol A. Inhibition of nuclear Nox4 activity by plumbagin: effect on proliferative capacity in human amniotic stem cells. Oxid Med Cell Longev 2013; 2013:680816. [PMID: 24489986 DOI: 10.1155/2013/680816] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 11/18/2013] [Accepted: 11/19/2013] [Indexed: 01/03/2023]
Abstract
Human amniotic fluid stem cells (AFSC) with multilineage differentiation potential are novel source for cell therapy. However, in vitro expansion leads to senescence affecting differentiation and proliferative capacities. Reactive oxygen species (ROS) have been involved in the regulation of stem cell pluripotency, proliferation, and differentiation. Redox-regulated signal transduction is coordinated by spatially controlled production of ROS within subcellular compartments. NAD(P)H oxidase family, in particular Nox4, has been known to produce ROS in the nucleus; however, the mechanisms and the meaning of this function remain largely unknown. In the present study, we show that Nox4 nuclear expression (nNox4) increases during culture passages up to cell cycle arrest and the serum starvation causes the same effect. With the decrease of Nox4 activity, obtained with plumbagin, a decline of nuclear ROS production and of DNA damage occurs. Moreover, plumbagin exposure reduces the binding between nNox4 and nucleoskeleton components, as Matrin 3. The same effect was observed also for the binding with phospho-ERK, although nuclear ERK and P-ERK are unchanged. Taken together, we suggest that nNox4 regulation may have important pathophysiologic effects in stem cell proliferation through modulation of nuclear signaling and DNA damage.
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Xiao L, Tsutsui T. Characterization of human dental pulp cells-derived spheroids in serum-free medium: stem cells in the core. J Cell Biochem 2013; 114:2624-36. [PMID: 23794488 DOI: 10.1002/jcb.24610] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 06/11/2013] [Indexed: 12/29/2022]
Abstract
Spheroid models have led to an increased understanding of differentiation, tissue organization and homeostasis. In the present study, we have observed that under a serum-free medium, human dental pulp cells (DPCs) spontaneously formed spheroids, and could survive over 15 weeks. To characterize these spheroids, we investigated their dynamics, microenvironment, cell distribution, molecular profiles, and neuronal/osteogenic potential. Cell tracking assay showed that cells inside the spheroids have very slow cycling. Although the spheroids had hypoxia microenvironments, there were not any massive cell die-offs even after long-term cultivation. Whole mount immunofluorescence staining and histological analysis showed a distribution of stem cells in the central/intermediate zones of spheroids. qRT-PCR analysis demonstrated that the expression of stemness markers NANOG, TP63, and CD44 in the spheroids were much higher than within the monolayer cultures. Gene expression levels of neural markers CDH2, NFM, TUBB3, and CD24 in the spheroids were much higher than the monolayer DPCs and increased in a culture time-dependent manner. Without any neural induction, spheroid-derived cells spontaneously converted into neuron-like cells with positive staining of neural markers HuC/D and P75 under the serum-free medium for about 2 weeks. When the spheroids were transferred into osteogenic medium, they rapidly differentiated into osteo/odontogenic cells, especially the central original cells. Compared to the monolayer DPCs, mineralization in spheroids were significantly increased. This spheroid model offers a study tool to explore the molecular bases of stem cell homeostasis and tissue organization, and can be wildly used for nerve tissue and bone regeneration.
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Affiliation(s)
- Li Xiao
- Department of Pharmacology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
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Martini D, Trirè A, Breschi L, Mazzoni A, Teti G, Falconi M, Ruggeri A. Dentin matrix protein 1 and dentin sialophosphoprotein in human sound and carious teeth: an immunohistochemical and colorimetric assay. Eur J Histochem 2013; 57:e32. [PMID: 24441185 PMCID: PMC3896034 DOI: 10.4081/ejh.2013.e32] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/16/2013] [Accepted: 09/20/2013] [Indexed: 11/23/2022] Open
Abstract
Dentin matrix protein 1 (DMP1) and dentin sialophosphoprotein (DSPP) are extracellular matrix proteins produced by odontoblasts involved in the dentin mineralization. The aim this study was to compare the distribution of DMP1 and DSPP in human sound dentin vs human sclerotic dentin. Sixteen sound and sixteen carious human molars were selected, fixed in paraformaldehyde and processed for immunohistochemical detection of DMP1 and DSPP by means of light microscopy, transmission electron microscopy (TEM) and high-resolution field emission in-lens scanning electron microscopy (FEI-SEM). Specimens were submitted to a pre-embedding or a post-embedding immunolabeling technique using primary antibodies anti DMP1 and anti-DSPP and gold-conjugated secondary antibodies. Other samples were processed for the detection of DMP1 and DSPP levels. Dentin from these samples was mechanically fractured to powder, then a protein extraction and a protein level detection assay were performed. DMP1 and DSPP were more abundant in carious than in sound samples. Immunohistochemical analyses in sclerotic dentin disclosed a high expression of DMP1 and DSPP inside the tubules, suggesting an active biomineralization of dentin by odontoblasts. Furthermore, the detection of small amounts of these proteins inside the tubules far from the carious lesion, as shown in the present study, is consistent with the hypothesis of a preventive defense of all dentin after a noxious stimulus has undermined the tooth.
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Abstract
Regeneration using scaffolds, growth factors, and stem cells is being investigated worldwide. Pubmed search for scaffolds for condyle resulted in 102 articles, of which 24 analyzed Temporomandibular joint (TMJ) scaffolds and only 6 evaluated hydroxyapatite scaffolds. 17 articles report studies on TMJ disc regeneration. The ideal bone construct for repair should be able to replicate the lost structure, restore function, be harmless, reliable and biodegradable. Scaffolds act as carriers for mesenchymal stem cells and/or growth factors and are useful for cell adhesion, migration, proliferation, and differentiation. Gene therapy has also led to the accelerated effective bone regeneration. The major materials used as scaffolds are natural or synthetic polymers, ceramics, composite materials, and electrospun nanofibers. Mesenchymal stem cells are responsible for the formation of virtually all dental, oral, and craniofacial structures. Tissue-engineered bone can possess the customized shape and dimensions. It has the potential for the biological replacement of craniofacial bones.
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Affiliation(s)
- Divya Mehrotra
- Professor, Department of Oral & Maxillofacial Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
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Teti G, Salvatore V, Ruggeri A, Manzoli L, Gesi M, Orsini G, Falconi M. In vitro reparative dentin: a biochemical and morphological study. Eur J Histochem 2013; 57:e23. [PMID: 24085272 PMCID: PMC3794354 DOI: 10.4081/ejh.2013.e23] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 06/24/2013] [Accepted: 06/27/2013] [Indexed: 01/28/2023] Open
Abstract
In this study, starting from human dental pulp cells cultured in vitro, we simulated reparative dentinogenesis using a medium supplemented with different odontogenic inductors. The differentiation of dental pulp cells in odontoblast-like cells was evaluated by means of staining, and ultramorphological, biochemical and biomolecular methods. Alizarin red staining showed mineral deposition while transmission electron microscopy revealed a synthesis of extracellular matrix fibers during the differentiation process. Biochemical assays demonstrated that the differentiated phenotype expressed odontoblast markers, such as Dentin Matrix Protein 1 (DMP1) and Dentin Sialoprotein (DSP), as well as type I collagen. Quantitative data regarding the mRNA expression of DMP1, DSP and type I collagen were obtained by Real Time PCR. Immunofluorescence data demonstrated the various localizations of DSP and DMP1 during odontoblast differentiation. Based on our results, we obtained odontoblast-like cells which simulated the reparative dentin processes in order to better investigate the mechanism of odontoblast differentiation, and dentin extracellular matrix deposition and mineralization.
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Carnevale G, Riccio M, Pisciotta A, Beretti F, Maraldi T, Zavatti M, Cavallini GM, La Sala GB, Ferrari A, De Pol A. In vitro differentiation into insulin-producing β-cells of stem cells isolated from human amniotic fluid and dental pulp. Dig Liver Dis 2013; 45:669-76. [PMID: 23643565 DOI: 10.1016/j.dld.2013.02.007] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/21/2013] [Accepted: 02/06/2013] [Indexed: 12/11/2022]
Abstract
AIM To investigate the ability of human amniotic fluid stem cells and human dental pulp stem cells to differentiate into insulin-producing cells. METHODS Human amniotic fluid stem cells and human dental pulp stem cells were induced to differentiate into pancreatic β-cells by a multistep protocol. Islet-like structures were assessed in differentiated human amniotic fluid stem cells and human dental pulp stem cells after 21 days of culture by dithizone staining. Pancreatic and duodenal homebox-1, insulin and Glut-2 expression were detected by immunofluorescence and confocal microscopy. Insulin secreted from differentiated cells was tested with SELDI-TOF MS and by enzyme-linked immunosorbent assay. RESULTS Human amniotic fluid stem cells and human dental pulp stem cells, after 7 days of differentiation started to form islet-like structures that became evident after 14 days of induction. SELDI-TOF MS analysis, revealed the presence of insulin in the media of differentiated cells at day 14, further confirmed by enzyme-linked immunosorbent assay after 7, 14 and 21 days. Both stem cell types expressed, after differentiation, pancreatic and duodenal homebox-1, insulin and Glut-2 and were positively stained by dithizone. Either the cytosol to nucleus translocation of pancreatic and duodenal homebox-1, either the expression of insulin, are regulated by glucose concentration changes. Day 21 islet-like structures derived from both human amniotic fluid stem cells and human dental pulp stem cell release insulin in a glucose-dependent manner. CONCLUSION The present study demonstrates the ability of human amniotic fluid stem cells and human dental pulp stem cell to differentiate into insulin-producing cells, offering a non-pancreatic, low-invasive source of cells for islet regeneration.
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Affiliation(s)
- Gianluca Carnevale
- Department of Surgery, Medicine, Dentistry and Morphological Sciences with Interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.
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Resca E, Zavatti M, Bertoni L, Maraldi T, De Biasi S, Pisciotta A, Nicoli A, La Sala G, Guillot P, David A, Sebire N, De Coppi P, De Pol A. Enrichment in c-Kit+ enhances mesodermal and neural differentiation of human chorionic placental cells. Placenta 2013; 34:526-35. [DOI: 10.1016/j.placenta.2013.03.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 03/25/2013] [Accepted: 03/27/2013] [Indexed: 01/15/2023]
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Maraldi T, Riccio M, Pisciotta A, Zavatti M, Carnevale G, Beretti F, La Sala GB, Motta A, De Pol A. Human amniotic fluid-derived and dental pulp-derived stem cells seeded into collagen scaffold repair critical-size bone defects promoting vascularization. Stem Cell Res Ther 2013; 4:53. [PMID: 23688855 PMCID: PMC3706961 DOI: 10.1186/scrt203] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 05/14/2013] [Indexed: 12/16/2022] Open
Abstract
Introduction The main aim of this study is to evaluate potential human stem cells, such as dental pulp stem cells and amniotic fluid stem cells, combined with collagen scaffold to reconstruct critical-size cranial bone defects in an animal model. Methods We performed two symmetric full-thickness cranial defects on each parietal region of rats and we replenished them with collagen scaffolds with or without stem cells already seeded into and addressed towards osteogenic lineage in vitro. After 4 and 8 weeks, cranial tissue samples were taken for histological and immunofluorescence analysis. Results We observed a new bone formation in all of the samples but the most relevant differences in defect correction were shown by stem cell–collagen samples 4 weeks after implant, suggesting a faster regeneration ability of the combined constructs. The presence of human cells in the newly formed bone was confirmed by confocal analysis with an antibody directed to a human mitochondrial protein. Furthermore, human cells were found to be an essential part of new vessel formation in the scaffold. Conclusion These data confirmed the strong potential of bioengineered constructs of stem cell–collagen scaffold for correcting large cranial defects in an animal model and highlighting the role of stem cells in neovascularization during skeletal defect reconstruction.
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Zavatti M, Resca E, Bertoni L, Maraldi T, Guida M, Carnevale G, Ferrari A, De Pol A. Ferutinin promotes proliferation and osteoblastic differentiation in human amniotic fluid and dental pulp stem cells. Life Sci 2013; 92:993-1003. [PMID: 23583571 DOI: 10.1016/j.lfs.2013.03.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 03/16/2013] [Accepted: 03/27/2013] [Indexed: 02/06/2023]
Abstract
AIMS The phytoestrogen Ferutinin plays an important role in prevention of osteoporosis caused by ovariectomy-induced estrogen deficiency in rats, but there is no evidence of its effect on osteoblastic differentiation in vitro. In this study we investigated the effect of Ferutinin on proliferation and osteoblastic differentiation of two different human stem cells populations, one derived from the amniotic fluid (AFSCs) and the other from the dental pulp (DPSCs). MAIN METHODS AFSCs and DPSCs were cultured in a differentiation medium for 14 or 21days with or without the addition of Ferutinin at a concentration ranging from 10(-11) to 10(-4)M. 17β-Estradiol was used as a positive drug at 10(-8)M. Cell proliferation and expression of specific osteoblast phenotype markers were analyzed. KEY FINDINGS MTT assay revealed that Ferutinin, at concentrations of 10(-8) and 10(-9)M, enhanced proliferation of both AFSCs and DPSCs after 72h of exposure. Moreover, in both stem cell populations, Ferutinin treatment induced greater expression of the osteoblast phenotype markers osteocalcin (OCN), osteopontin (OPN), collagen I, RUNX-2 and osterix (OSX), increased calcium deposition and osteocalcin secretion in the culture medium compared to controls. These effects were more pronounced after 14days of culture in both populations. SIGNIFICANCE The enhancing capabilities on proliferation and osteoblastic differentiation displayed by the phytoestrogen Ferutinin make this compound an interesting candidate to promote bone formation in vivo.
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Affiliation(s)
- M Zavatti
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.
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Chatakun P, Núñez-Toldrà R, Díaz López EJ, Gil-Recio C, Martínez-Sarrà E, Hernández-Alfaro F, Ferrés-Padró E, Giner-Tarrida L, Atari M. The effect of five proteins on stem cells used for osteoblast differentiation and proliferation: a current review of the literature. Cell Mol Life Sci 2013; 71:113-42. [PMID: 23568025 DOI: 10.1007/s00018-013-1326-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/13/2013] [Accepted: 03/14/2013] [Indexed: 01/04/2023]
Abstract
Bone-tissue engineering is a therapeutic target in the field of dental implant and orthopedic surgery. It is therefore essential to find a microenvironment that enhances the growth and differentiation of osteoblasts both from mesenchymal stem cells (MSCs) and those derived from dental pulp. The aim of this review is to determine the relationship among the proteins fibronectin (FN), osteopontin (OPN), tenascin (TN), bone sialoprotein (BSP), and bone morphogenetic protein (BMP2) and their ability to coat different types of biomaterials and surfaces to enhance osteoblast differentiation. Pre-treatment of biomaterials with FN during the initial phase of osteogenic differentiation on all types of surfaces, including slotted titanium and polymers, provides an ideal microenvironment that enhances adhesion, morphology, and proliferation of pluripotent and multipotent cells. Likewise, in the second stage of differentiation, surface coating with BMP2 decreases the diameter and the pore size of the scaffold, causing better adhesion and reduced proliferation of BMP-MSCs. Coating oligomerization surfaces with OPN and BSP promotes cell adhesion, but it is clear that the polymeric coating material BSP alone is insufficient to induce priming of MSCs and functional osteoblastic differentiation in vivo. Finally, TN is involved in mineralization and can accelerate new bone formation in a multicellular environment but has no effect on the initial stage of osteogenesis.
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Affiliation(s)
- P Chatakun
- Laboratory for Regenerative Medicine, College of Dentistry, Universitat Internacional de Catalunya, C/Josep Trueta s/n, Sant Cugat del Vallès, 08195, Barcelona, Spain
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Naito H, Yoshimura M, Mizuno T, Takasawa S, Tojo T, Taniguchi S. The advantages of three-dimensional culture in a collagen hydrogel for stem cell differentiation. J Biomed Mater Res A 2013; 101:2838-45. [PMID: 23468218 DOI: 10.1002/jbm.a.34578] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 11/21/2012] [Accepted: 01/04/2013] [Indexed: 11/06/2022]
Abstract
We evaluated the advantages of three-dimensional (3D) culture in a collagen hydrogel for stem cell differentiation, including the morphology of differentiated cells, differentiation efficiency of stem cells from aged rat and cells after passaging and freeze/thawing. Rat mesenchymal stem cells (MSCs) from young and aged rats, and MSCs after passaging and freeze/thawing were induced to differentiate into osteoblasts in 3D and 2D cultures, and histological studies were performed. Differentiation efficiency was evaluated by markers of osteoblastic differentiation including Runx2 and osterix gene expressions, osteocalcin secretion and calcium deposition. MSCs were stained positive for alkaline phosphatase in 3D and 2D cultures. However, the morphology of differentiated cells in 3D culture, which was different from that in 2D culture, was similar to that of osteoblasts in vivo. Markers of osteoblastic differentiation in MSCs from aged rats in 3D culture were higher than those in MSCs from young rats in 2D culture. Markers of osteoblastic differentiation in MSCs after passaging and freeze/thawing in 3D culture were higher than those in nonpassaged MSCs in 2D culture. These results indicate that 3D culture in a collagen hydrogel has advantages for the differentiation of MSCs into osteoblasts with a similar phenotype to that of in vivo, when using even MSCs from aged donors or after passaging and freeze/thawing.
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Affiliation(s)
- Hiroshi Naito
- Department of Thoracic and Cardiovascular Surgery, Nara Medical University School of Medicine, Kashihara, Nara 634-8522, Japan
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Abstract
In the last three years, more than 70,000 scientific articles have been published in peer reviewed journals on the application of histochemistry in the biomedical field: most of them did not appear in strictly histochemical journals, but in others dealing with cell and molecular biology, medicine or biotechnology. This proves that histochemistry is still an active and innovative discipline with relevance in basic and applied biological research, but also demonstrates that especially the small histochemical journals should likely reconsider their scopes and strategies to preserve their authorship. A review of the last three years volumes of the European Journal of Histochemistry, taken as an example of a long-time established small journal, confirmed that the published articles were widely heterogeneous in their topics and experimental models, as in this journal's tradition. This strongly suggests that a journal of histochemistry should keep its role as a forum open to an audience as broad as possible, publishing papers on cell and tissue biology in a wide variety of models. This will improve knowledge of the basic mechanisms of development and differentiation, while helping to increase the number of potential authors since scientists who generally do not use histochemistry in their research will find hints for the applications of histochemical techniques to novel still unexplored subjects.
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Affiliation(s)
- C Pellicciari
- Dipartimento di Biologia e Biotecnologie “Lazzaro Spallanzani”,University of Pavia, Italy.
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Pisciotta A, Riccio M, Carnevale G, Beretti F, Gibellini L, Maraldi T, Cavallini GM, Ferrari A, Bruzzesi G, De Pol A. Human serum promotes osteogenic differentiation of human dental pulp stem cells in vitro and in vivo. PLoS One 2012; 7:e50542. [PMID: 23209773 PMCID: PMC3510089 DOI: 10.1371/journal.pone.0050542] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 10/24/2012] [Indexed: 12/23/2022] Open
Abstract
Human dental pulp is a promising alternative source of stem cells for cell-based tissue engineering in regenerative medicine, for the easily recruitment with low invasivity for the patient and for the self-renewal and differentiation potential of cells. So far, in vitro culture of mesenchymal stem cells is usually based on supplementing culture and differentiation media with foetal calf serum (FCS). FCS is known to contain a great quantity of growth factors, and thus to promote cell attachment on plastic surface as well as expansion and differentiation. Nevertheless, FCS as an animal origin supplement may represent a potential means for disease transmission besides leading to a xenogenic immune response. Therefore, a significant interest is focused on investigating alternative supplements, in order to obtain a sufficient cell number for clinical application, avoiding the inconvenients of FCS use. In our study we have demonstrated that human serum (HS) is a suitable alternative to FCS, indeed its addition to culture medium induces a high hDPSCs proliferation rate and improves the in vitro osteogenic differentiation. Furthermore, hDPSCs-collagen constructs, pre-differentiated with HS-medium in vitro for 10 days, when implanted in immunocompromised rats, are able to restore critical size parietal bone defects. Therefore these data indicate that HS is a valid substitute for FCS to culture and differentiate in vitro hDPSCs in order to obtain a successful bone regeneration in vivo.
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Affiliation(s)
- Alessandra Pisciotta
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Massimo Riccio
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
- * E-mail:
| | - Gianluca Carnevale
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Beretti
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Lara Gibellini
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Tullia Maraldi
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Gian Maria Cavallini
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Adriano Ferrari
- Department of Biomedical, Metabolic and Neuroscience, University of Modena and Reggio Emilia, Children Rehabilitation Special Unit, IRCCS Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | | | - Anto De Pol
- Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
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Veronesi F, Giavaresi G, Tschon M, Borsari V, Nicoli Aldini N, Fini M. Clinical use of bone marrow, bone marrow concentrate, and expanded bone marrow mesenchymal stem cells in cartilage disease. Stem Cells Dev 2012; 22:181-92. [PMID: 23030230 DOI: 10.1089/scd.2012.0373] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mesenchymal stem cells (MSCs) from bone marrow (BM) are widely used for bone and less for cartilage tissue regeneration due to their self-renewal and differentiating properties into osteogenic or chondrogenic lineages. This review considers the last decade of clinical trials involving a two-step procedure, by expanding in vitro MSCs from BM, or the so called "one-step" procedure, using BM in toto or BM concentrate, for the regeneration of cartilage and osteochondral tissue defects. The following conclusions were drawn: (1) Cartilage defects that can be repaired by the two-step technique are about twice the size as those where the one-step method is used; (2) the two-step procedure is especially used for the treatment of osteoarthritic lesions, whereas the one-step procedure is used for osteochondral defects; (3) the number of transplanted cells ranges between 3.8×10(6) and 11.2×10(6) cells/mL, and the period of cell culture expansion of implanted MSCs varies widely with regard to the two-step procedure; (4) hyaluronic or collagenic scaffolds are used in all the clinical studies analyzed for both techniques; (5) the follow-up of the two-step procedure is longer than that of the one-step method, despite having a lower number of patients; and, finally, (6) the mean age of the patients (about 39 years old) is similar in both procedures. Clinical results underline the safety and good and encouraging outcomes for the use of MSCs in clinics. Although more standardized procedures are required, the length of follow-up and the number of patients observed should be augmented, and the design of trials should be implemented to achieve evidence-based results.
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Affiliation(s)
- Francesca Veronesi
- Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Via Di Barbiano 1/10, Bologna, Italy
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Matsuoka K, Matsuzaka K, Yoshinari M, Inoue T. Tenascin-C promotes differentiation of rat dental pulp cellsin vitro. Int Endod J 2012; 46:30-9. [DOI: 10.1111/j.1365-2591.2012.02089.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Accepted: 05/27/2012] [Indexed: 01/09/2023]
Affiliation(s)
| | | | - M. Yoshinari
- Oral Health Science Center HRC7; Tokyo Dental College; Chiba, Tokyo; and; Japan
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Takamoto T, Ichinohe N, Tabata Y. Proliferation of rat mesenchymal stem cells in collagen sponges reinforced with poly(ethylene terephthalate) fibers by stirring culture method. J Biomater Sci Polym Ed 2012; 23:1741-53. [PMID: 21943688 DOI: 10.1163/156856211x598184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The objective of this study is to investigate the effect of medium stirring conditions on the proliferation of rat mesenchymal stem cells (MSC) in collagen sponges reinforced by the incorporation of poly(ethylene terephthalate) (PET) fibers. A collagen solution with PET fibers homogeneously dispersed was freeze-dried, followed by dehydrothermal cross-linking to obtain a collagen sponge incorporating PET fibers. MSC were proliferated in the sponge by a stirring culture method. The PET fibers reinforcement significantly suppressed the sponge deformation in culture. The MSC proliferation was enhanced by the stirring culture to a significantly higher extent than that of a static one. Homogeneous distribution of cells proliferated was observed at the stirring rate of 50 rpm and compared with that at lower and higher rates. Combination of the PET fiber-reinforced sponge with the stirring culture method is a promising way to allow cells to homogeneously proliferate in the sponge.
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Affiliation(s)
- Tomoaki Takamoto
- a Department of Biomaterials , Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University , 53 Kawara-cho Shogoin , Sakyo-ku Kyoto , 606-8507 , Japan
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Abstract
The purpose of this study was to investigate the growth and differentiation potential of dental pulp cells (DPCs) in three-dimensional (3-D) collagen type-1 scaffold in vitro and in vivo. Third passage DPCs were cultured in a 3-D collagen and expression of both bone- or dentin-related mRNA (alkaline phosphatase (ALP), bone sialoprotein (BSP) and osteopontin (OPN)) and morphological changes evaluated in vitro. In the in vivo study, two types of grafts were transplanted into the rectus abdominus muscles of rats and harvested after 7 days: DPCs in α-minimal essential medium and DPCs mixed with a collagen gel. ALP, BSP and OPN were used as primary antibodies for immunohistochemical study. Histological and immunohistochemical results showed that DPCs in collagen gel were spindle shaped and showed significantly greater expression of ALP, BSP and OPN in vitro than the controls. Transplanted DPCs in collagen type-1 gel showed greater positive immunoreactivity for ALP, BSP and OPN than the controls. It was concluded that the collagen gel scaffold encouraged the differentiation of DPCs into osteoblastic cells.
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Affiliation(s)
- Sultan Zeb Khan
- Department of Clinical Pathophysiology, Tokyo Dental College, Chiba, Japan HRC-7, Tokyo Dental College, Chiba, Japan Department of Microbiology, Tokyo Dental College, Chiba, Japan
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Riccio M, Maraldi T, Pisciotta A, La Sala GB, Ferrari A, Bruzzesi G, Motta A, Migliaresi C, De Pol A. Fibroin scaffold repairs critical-size bone defects in vivo supported by human amniotic fluid and dental pulp stem cells. Tissue Eng Part A 2012; 18:1006-13. [PMID: 22166080 DOI: 10.1089/ten.tea.2011.0542] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The main aim of this study was the comparative evaluation of fibroin scaffolds combined with human stem cells, such as dental pulp stem cells (hDPSCs) and amniotic fluid stem cells (hAFSCs), used to repair critical-size cranial bone defects in immunocompromised rats. Two symmetric full-thickness cranial defects on each parietal region of rats have been replenished with silk fibroin scaffolds with or without preseeded stem cells addressed toward osteogenic lineage in vitro. Animals were euthanized after 4 weeks postoperatively and cranial tissue samples were taken for histological analysis. The presence of human cells in the new-formed bone was confirmed by confocal analysis with an antibody directed to a human mitochondrial protein. Fibroin scaffolds induced mature bone formation and defect correction, with higher bone amount produced by hAFSC-seeded scaffolds. Our findings demonstrated the strong potential of stem cells/fibroin bioengineered constructs for correcting large cranial defects in animal model and is likely a promising approach for the reconstruction of human large skeletal defects in craniofacial surgery.
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Affiliation(s)
- Massimo Riccio
- CEIA-Department of Laboratories, Pathological Anatomy and Forensic Medicine, University of Modena and Reggio Emilia, Modena, Italy.
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