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Arora S, Seo B, Friedlander L, Hussaini HM. A Cell Culture Method for the Isolation and Study of Primary Human Dental Pulp Cells. Methods Mol Biol 2023; 2588:393-405. [PMID: 36418699 DOI: 10.1007/978-1-0716-2780-8_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Primary human dental pulp cell (HDPC) cultures contain dental pulp stem cell (DPSC) populations. DPSCs are multipotent mesenchymal cells residing inside the dental pulp where they can contribute to the regenerative potential of this and other tissues throughout the body. These cells are promising tools for cell-based therapies, including regenerative endodontic procedures. HDPCs can be readily isolated and expanded from extracted teeth either by the dental tissue explant method or enzymatic digestion method. This chapter describes the explant method, whereby cells outgrow from dissected pulp tissue, to generate HDPC cultures. We also provide protocols for HDPC passaging, cryopreservation, and basic immunocytochemical characterization.
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Affiliation(s)
- Shelly Arora
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Benedict Seo
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Lara Friedlander
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Haizal Mohd Hussaini
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
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Bhandi S, Alkahtani A, Mashyakhy M, Abumelha AS, Albar NHM, Renugalakshmi A, Alkahtany MF, Robaian A, Almeslet AS, Patil VR, Varadarajan S, Balaji TM, Reda R, Testarelli L, Patil S. Effect of Ascorbic Acid on Differentiation, Secretome and Stemness of Stem Cells from Human Exfoliated Deciduous Tooth (SHEDs). J Pers Med 2021; 11:jpm11070589. [PMID: 34206203 PMCID: PMC8304986 DOI: 10.3390/jpm11070589] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/16/2021] [Accepted: 06/20/2021] [Indexed: 12/23/2022] Open
Abstract
Stem cells from human exfoliated deciduous teeth (SHEDs) are considered a type of mesenchymal stem cells (MSCs) because of their unique origin from the neural crest. SHEDs can self-renewal and multi-lineage differentiation with the ability to differentiate into odontoblasts, osteoblast, chondrocytes, neuronal cells, hepatocytes, adipocytes, etc. They are emerging as an ideal source of MSCs because of their easy availability and extraordinary cell number. Ascorbic acid, or vitamin C, has many cell-based applications, such as bone regeneration, osteoblastic differentiation, or extracellular matrix production. It also impacts stem cell plasticity and the ability to sustain pluripotent activity. In this study, we evaluate the effects of ascorbic acid on stemness, paracrine secretion, and differentiation into osteoblast, chondrocytes, and adipocytes. SHEDs displayed enhanced multifaceted activity, which may have applications in regenerative therapy.
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Affiliation(s)
- Shilpa Bhandi
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan 45412, Saudi Arabia; (S.B.); (M.M.); (N.H.M.A.)
| | - Ahmed Alkahtani
- Department of Restorative Dental Sciences, Division of Endodontics, College of Dentistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.); (M.F.A.)
| | - Mohammed Mashyakhy
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan 45412, Saudi Arabia; (S.B.); (M.M.); (N.H.M.A.)
| | - Abdulaziz S. Abumelha
- Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Abha 61421, Saudi Arabia;
| | - Nassreen Hassan Mohammad Albar
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan 45412, Saudi Arabia; (S.B.); (M.M.); (N.H.M.A.)
| | - Apathsakayan Renugalakshmi
- Department of Preventive Dental Sciences, Pedodontics Division, College of Dentistry, Jazan University, Jazan 45412, Saudi Arabia;
| | - Mazen F. Alkahtany
- Department of Restorative Dental Sciences, Division of Endodontics, College of Dentistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.); (M.F.A.)
| | - Ali Robaian
- Department of Conservative Dental Sciences, College of Dentistry, Prince Sattam bin Abdulaziz University, Alkharj 11942, Saudi Arabia;
| | - Asma Saleh Almeslet
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, Riyadh Elm University, Riyadh 12611, Saudi Arabia;
| | | | - Saranya Varadarajan
- Department of Oral Pathology and Microbiology, Sri Venkateswara Dental College and Hospital, Chennai 600130, India;
| | - Thodur Madapusi Balaji
- Department of Periodontology, Tagore Dental College and Hospital, Chennai 600127, India;
| | - Rodolfo Reda
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.R.); (L.T.)
| | - Luca Testarelli
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (R.R.); (L.T.)
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan 45412, Saudi Arabia
- Correspondence:
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Martín-de-Llano JJ, Mata M, Peydró S, Peydró A, Carda C. Dentin tubule orientation determines odontoblastic differentiation in vitro: A morphological study. PLoS One 2019; 14:e0215780. [PMID: 31071116 PMCID: PMC6508697 DOI: 10.1371/journal.pone.0215780] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/08/2019] [Indexed: 01/09/2023] Open
Abstract
Odontoblasts are post-mitotic cells responsible for maintenance of the dentin, and are therefore important for dental health. In some cases, irreversible pulpitis leads to necrosis and consequently death of odontoblasts. Regenerative endodontics (RE) uses the concept of tissue engineering to restore the root canals to a healthy state, allowing for continued development of the root and surrounding tissue. Human dental pulp stem cells (hDPSCs) have been successfully used in RE to restore odontoblast function. Surface microgeometry is one of the most important factors involved in the induction of differentiation of hDPSCs into odontoblast-like cells. Although different authors have demonstrated the importance of a dentin-like surface with accessible dentin tubules to induce differentiation of hDPSCs, the ultrastructural characteristics of the cells and the secreted extracellular matrix have not been studied in depth. Here, we used an acellular dentin scaffold containing dentin tubules in different spatial geometries, which regulated their accessibility to cells. hDPSCs were cultured on the scaffolds for up to 6 weeks. Systematic characterization of differentiated cells was performed using both optical (hematoxylin and eosin, Masson trichrome, and immunohistochemical determination of dentin sialoprotein [DSSP]) and transmission electron microscopy. The results presented here indicated that cells grown on the dentin surface containing accessible dentin tubules developed a characteristic odontoblastic phenotype, with cellular processes similar to native odontoblasts. The cell organization and characteristics of secreted extracellular matrix were also similar to those of native dentin tissue. Cells grown on non-accessible dentin tubule surfaces secreted a more abundant and dense extracellular matrix, and developed a different phenotype consisting of secretory flat cells organized in layers. Cells grown far from the scaffold, i.e., directly on the culture well surface, developed a secretory phenotype probably influenced by biochemical factors released by the dentin scaffold or differentiated cells. The results presented here support the use of hDPSCs to regenerate dentin and show the utility of scaffold microgeometry for determining the differentiation and secretory phenotype of cultured cells.
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Affiliation(s)
- José Javier Martín-de-Llano
- Department of Pathology. Faculty of Medicine and Odontology, University of Valencia, Valencia, Spain
- Fundación para la Investigación del Hospital Clínico de la Comunidad Valenciana (INCLIVA), Valencia, Spain
| | - Manuel Mata
- Department of Pathology. Faculty of Medicine and Odontology, University of Valencia, Valencia, Spain
- Fundación para la Investigación del Hospital Clínico de la Comunidad Valenciana (INCLIVA), Valencia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
- * E-mail:
| | - Santiago Peydró
- Department of Pathology. Faculty of Medicine and Odontology, University of Valencia, Valencia, Spain
| | - Amando Peydró
- Department of Pathology. Faculty of Medicine and Odontology, University of Valencia, Valencia, Spain
| | - Carmen Carda
- Department of Pathology. Faculty of Medicine and Odontology, University of Valencia, Valencia, Spain
- Fundación para la Investigación del Hospital Clínico de la Comunidad Valenciana (INCLIVA), Valencia, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBERBBN), Madrid, Spain
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Patil VR, Kharat AH, Kulkarni DG, Kheur SM, Bhonde RR. Long term explant culture for harvesting homogeneous population of human dental pulp stem cells. Cell Biol Int 2019; 42:1602-1610. [PMID: 30353965 DOI: 10.1002/cbin.11065] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/12/2018] [Indexed: 01/09/2023]
Abstract
Dental pulp stem cells have emerged as a preferred source of mesenchymal stem cells, because of its easy availability and high stem cell content. Dental pulp is a specific fibrous tissue that contains heterogeneous populations of odontoblasts, fibroblasts, pericytes, progenitors, stem cells, leukocytes and neuronal cells. In this study, we propose sustained explant culture as a simple, economical and efficient process to isolate dental pulp stem cells from human Dental pulp Tissue. Historically explant cultures were used to get fibroblast cells from embryonic chick heart using plasma clot cultures. The subculture was performed by lifting mother explant (original explant) and grafting it in a new plasma clot. We modified this age old technique to suit the modern times. Here we demonstrate for the first time that the mother explant (E0) of human dental pulp tissue could be sub-cultured consecutively seven times (E7) without displacement. This technique is highly reproducible and permits growth and proliferation of dental pulp stem cells yielding an enriched homogeneous mesenchymal stem cells population in the first passage itself as revealed by surface marker expression. These dental pulp stem cells exhibit differentiation into adipogenic, chondrogenic and osteogenic lineage revealing their mesenchymal stem cell nature. We propose that dental pulp stem cells isolated by sustained explant culture are phenotypically and functionally comparable to those obtained by enzymatic method. It is a simple, inexpensive and gentle method, which may be preferred over the conventional techniques for obtaining stem cells from other tissue sources as well especially in cases of limited starting material.
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Affiliation(s)
- Vikrant R Patil
- Regenerative Medicine Laboratory, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, 411018, India
| | - Avinash H Kharat
- Regenerative Medicine Laboratory, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, 411018, India
| | - Deepak G Kulkarni
- Regenerative Medicine Laboratory, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, 411018, India
| | - Supriya M Kheur
- Regenerative Medicine Laboratory, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, 411018, India
| | - Ramesh R Bhonde
- Regenerative Medicine Laboratory, Dr. D. Y. Patil Dental College & Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune, Maharashtra, 411018, India
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Huynh NCN, Le SH, Doan VN, Ngo LTQ, Tran HLB. Simplified conditions for storing and cryopreservation of dental pulp stem cells. Arch Oral Biol 2017; 84:74-81. [PMID: 28957734 DOI: 10.1016/j.archoralbio.2017.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 09/05/2017] [Accepted: 09/05/2017] [Indexed: 01/09/2023]
Abstract
OBJECTIVES This study aimed to simplify the collection, isolation and cryopreservation procedure of human dental pulp stem cells (DPSCs) to ease the establishment of dental stem cell banking. DESIGN Extracted third molars were collected and stored either in growth medium or in gentamicin-saline (480μg/ml) for 6, 9 or 12h. DPSCs were isolated and subjected to cryopreservation by a controlled-rate or rapid freezing method in 5 or 10% DMSO. Flow cytometry and growth pattern of DPSCs before and after cryopreservation were conducted. RESULTS Rate of contamination by which the extracted teeth were stored in control and gentamicin-saline were 9.1% (N=33) and 2.3% (N=43), respectively. Successful cell isolation rate of teeth preserved in gentamicin-saline at 6h (92.9%) was comparable to those of growth media group (90.3%). At 9 and 12h, the rates dropped significantly to 75% and 54%, respectively. Cryopreservation by controlled-rate freezing either in 5 or 10% DMSO resulted in a significantly higher percentage of viable cells than by rapid freezing. Cells conserved by controlled-rate freezing in 5% DMSO showed a pattern of growth similar to control unfrozen cells; 10% DMSO significantly deteriorated the growth pattern of the cells. After thawing, DPSCs conserved by controlled-rate freezing still expressed stemness characteristics, although hematopoietic stem cell markers were slightly increased. CONCLUSION Gentamicin-saline was effective in preserving human teeth for DPSC isolation. Controlled-rate freezing in 5% DMSO gave the highest rate of cell viability. This study simplifies the storage conditions and proposes a simple method for cryopreservation of DPSCs.
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Affiliation(s)
- Nam Cong-Nhat Huynh
- Department of Dental Basic Sciences, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Ho Chi Minh City, Viet Nam
| | - Son Hoang Le
- Department of Dental Basic Sciences, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Ho Chi Minh City, Viet Nam
| | - Vu Nguyen Doan
- Department of Physiology and Animal Biotechnology, Laboratory of Tissue Engineering and Biomedical Materials, Faculty of Biology - Biotechnology, University of Science, Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Lan Thi Quynh Ngo
- Department of Dental Basic Sciences, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Ho Chi Minh City, Viet Nam
| | - Ha Le Bao Tran
- Department of Physiology and Animal Biotechnology, Laboratory of Tissue Engineering and Biomedical Materials, Faculty of Biology - Biotechnology, University of Science, Vietnam National University, Ho Chi Minh City, Viet Nam.
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Fabrication and evaluation of human dentin as scaffold for dental pulp stem cells. Tissue Eng Regen Med 2015. [DOI: 10.1007/s13770-014-0103-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Tran HLB, Doan VN. Human dental pulp stem cells cultured onto dentin derived scaffold can regenerate dentin-like tissue in vivo. Cell Tissue Bank 2015; 16:559-68. [PMID: 25700693 DOI: 10.1007/s10561-015-9503-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 02/18/2015] [Indexed: 12/30/2022]
Abstract
Regeneration of dentin tissues in the pulp space of teeth serves the ultimate goal of preserving teeth via endodontic approaches. In recent times, many studies suggested that human dentin scaffolds combined with dental stem cells was a potential strategy for the complete dentin tissue regeneration. In this study, human dental pulp stem cells (DPSCs) were isolated and cultured. Dentin specimens were prepared from human third molars and treated with ethylene diamine tetra-acetic acid and citric acid to remove the smear layer. Then, DPSCs were cultured onto human treated dentin (hTD) and implanted in mouse model for 4, 6 and 8 weeks. The resulting grafts were assessed by hematoxylin and eosin stain and immunohistochemical stains. As a result, DPSCs were supported and induced to regenerate of dentin-like tissues which expressed specific dentin markers such as dentin sialophosphoprotein and dentin matrix protein 1 by combination with hTD in vivo. Furthermore, cells existed in the newly-formed dentin-like tissues also expressed typical human mitochondria antibodies, demonstrated that new tissues originated from human. In conclusion, the obtain results extend hopefully newly-established therapy to apply in endodontics and traumatic dental hard tissues.
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Affiliation(s)
- Ha Le Bao Tran
- Department of Physiology and Animal Biotechnology, Faculty of Biology, University of Science, Vietnam National University at Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5, Ho Chi Minh City, Vietnam.
| | - Vu Nguyen Doan
- Department of Physiology and Animal Biotechnology, Faculty of Biology, University of Science, Vietnam National University at Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5, Ho Chi Minh City, Vietnam
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