This paper will provide a comprehensive review on the origin and types of MSCs in the dental tissue and the oral cavity. It will also discuss their therapeutic mechanisms that make them useful in dentistry and dental treatments.
Over the past few decades, stem cell research has gained extensive scientific inquiry. This aspect is attributable to the significance of stem cells in tissue engineering. It is apparent that tissue regeneration has emerged as a reliable medical approach for the treatment of tissue disorders and injuries. Initially, embryonic stem cells were preferred as candidates for regenerative medicine because these cells can be induced to replicate in a pluripotent state. However, stem cell research involving embryonic stem cells has attracted immense controversy. It is also associated with legal and ethical issues, thus limiting the use of embryonic stem cells in regenerative medicine.
Fortunately, the discovery of mesenchymal stem cells (MSCs), also referred to as adult stem cells, has restored promise for the development of stem cell therapies. Unlike embryonic stem cells, MSCs are free from legal and ethical concerns. MSCs are usually pluripotent progenitor cells that are generated in an array of tissues in both foetal and adult life. It is reported that these progenitor cells differentiate into cell types of the tissues that generate them, although studies indicate that they can differentiate cell types of other tissues. Currently, MSCs are used for regenerative therapies for a number of tissue disorders and injuries including bone regeneration. For instance, MSCs generated by the dental pulps and the oral cavity tissues have been found to possess the potential for dental tissue regeneration. These cells have also been found to useful in non-dental tissue repair.
Table of Contents
1. Introduction
2. Origin of Mesenchymal Stem Cells
3. Mesenchymal Stem Cells in the Dental Pulps and Oral Cavity
3.1 Dental pulp DPSC
3.2 Apical papilla SCAP
3.3 Periodontal ligaments PDLSC
3.4 Dental follicle DFPC
3.5 SHED
3.6 Gingival fibroblast GFSC
4. Therapeutic Mechanisms of Mesenchymal Stem Cells
5. Application of Mesenchymal Stem Cells in Dentistry and Dental Treatments
6. Conclusion
Research Objectives and Key Topics
The primary objective of this paper is to provide a comprehensive review of the origins, types, and therapeutic mechanisms of mesenchymal stem cells (MSCs) found within dental tissues and the oral cavity, specifically evaluating their potential and application in modern regenerative dentistry.
- Biological characteristics and classification of dental-derived MSCs
- Mechanisms of MSC differentiation and tissue regeneration
- The role of the stem cell niche in maintaining cell potency
- Clinical applications of MSCs in dental tissue repair and bio-tooth engineering
- Immunomodulatory properties of dental mesenchymal stem cells
Excerpt from the Book
Dental pulp DPSC
Dental pulp stem cells (DPSCs) were the first to be isolated from adult dental tissue. These progenitor cells were found to reside in permanent third molars, primarily the root where they differentiate into odontoblast-like cells (Govindasamy et al. 2010). The key characteristics of odontoblast cells that differentiate from DPSCs include mineralization potential and active migration. As such, they are able to form three-dimensional dentin structures (Bakopoulou et al. 2011). Studies reveal variation in cell densities of DPSCs colonies. As such, it is apparent that the different cell clones exhibit varying growth rate. In addition, they exhibit variation in cell sizes and morphologies within the same colony. Biologically, it is believed that the differentiation of DPSCs into distinct cell lineages depends solely on biological factors in the microenvironment. Some of the factors in the local microenvironment that determine the programming of DPSCs into specific cell lineages include transcription factors, growth factors, signalling molecules, extracellular matrix protein, and receptor molecules.
From the perspective of dental tissue stem cell research, it has been found out that DPSCs have the potential to differentiate into multiple cell lineages. Studies show that reprogramming of DPSCs can generate corneal epithelial cells, osteoblasts, adipocytes, chondrocytes, odontoblasts, neurocytes, and myocytes (Warren et al. 2010). In addition, DPSCs can be reprogrammed to form induced pluripotent stem cells (iPSCs) (Yan et al. 2010). For instance, DPSCs are induced to differentiate into odontoblastic cell lines by dentin matrix protein 1 (DMP1). DMP1 is usually a non-collagen extracellular matrix protein that forms components of dentin (Almushayt et al. 2006). As such, it can be extracted for use in DPSCs reprogramming into odontoblast cells. This helps in forming dentin, especially over injured dental pulp tissue. In addition, studies show that fibroblast growth factor and transforming growth factor β1 (TGFβ1) in the microenvironment can induce DPSCs to differentiate into odontoblast cells (He et al. 2008).
Summary of Chapters
Introduction: Provides an overview of stem cell research, contrasting the controversies of embryonic stem cells with the promise of mesenchymal stem cells in regenerative medicine.
Origin of Mesenchymal Stem Cells: Explores the various anatomical sources of MSCs, highlighting the discovery of stem cells within dental tissues since the year 2000.
Mesenchymal Stem Cells in the Dental Pulps and Oral Cavity: Categorizes five specific dental progenitor cells and two oral cavity-derived stem cells, detailing their origin and multipotency.
Dental pulp DPSC: Discusses the isolation, differentiation capabilities, and biological functions of Dental Pulp Stem Cells in reparative dentin formation.
Apical papilla SCAP: Details the characteristics of stem cells from the apical papilla, noting their high potential for differentiation and role in root dentin formation.
Periodontal ligaments PDLSC: Describes the anatomy of periodontal ligaments and the role of resident stem cells in alveolar bone regeneration and maintenance.
Dental follicle DFPC: Examines the role of dental follicle precursor cells in developing the periodontium and their potential for osteogenic differentiation.
SHED: Focuses on stem cells from human exfoliated deciduous teeth, emphasizing their proliferative capacity and ability to produce neurotrophic factors.
Gingival fibroblast GFSC: Covers the isolation and self-renewal capabilities of stem cells found within human gingival tissues.
Therapeutic Mechanisms of Mesenchymal Stem Cells: Analyzes the biological mechanisms enabling MSCs to flourish, including the importance of the stem cell niche and homing efficiency.
Application of Mesenchymal Stem Cells in Dentistry and Dental Treatments: Evaluates current clinical approaches, such as bio-tooth engineering and periodontal defect repair, using dental-derived stem cells.
Conclusion: Summarizes the breakthrough nature of dental MSC research and its future impact on transforming clinical dental practice.
Keywords
Mesenchymal Stem Cells, Regenerative Dentistry, Dental Pulp Stem Cells, Tissue Engineering, Odontogenesis, Periodontal Ligament, Multipotency, Cell Differentiation, Stem Cell Niche, Immunomodulation, Bio-tooth Engineering, Apexogenesis, Trophic Factors, Regenerative Medicine, Progenitor Cells
Frequently Asked Questions
What is the primary focus of this research paper?
This paper examines the potential of mesenchymal stem cells (MSCs) derived from dental and oral tissues as candidates for regenerative medicine and modern dental therapies.
What are the central themes discussed in this work?
The work covers the origin, identification, biological classification, therapeutic mechanisms, and clinical applications of various dental stem cell populations.
What is the main research objective regarding dental stem cells?
The goal is to analyze how these specific stem cells can be utilized for the repair of tooth tissues and the management of dental disorders, providing an alternative to traditional treatments.
Which scientific methods are primarily associated with the study of these cells?
The paper reviews in vitro studies, histological analysis, cell isolation techniques, and the investigation of differentiation potential under various microenvironmental stimuli.
What aspects of the MSC biological mechanism are highlighted in the main body?
The main body focuses on the significance of the "stem cell niche," cell homing efficiency, immunomodulatory effects, and the production of trophic factors that support tissue regeneration.
Which keywords best characterize this research?
Key terms include Mesenchymal Stem Cells, Regenerative Dentistry, Multipotency, Dental Pulp Stem Cells (DPSCs), Periodontal Ligament (PDLSC), and Tissue Engineering.
How do DPSCs differ from other stem cell sources?
DPSCs were the first to be isolated from adult dental tissue and are uniquely characterized by their ability to form three-dimensional dentin structures and their high potential for multilineage differentiation.
Why is the apical papilla (SCAP) considered significant in endodontics?
SCAPs are significant because they exhibit high proliferative potential and can survive pulp necrosis, playing a crucial role in root dentin formation and the treatment of damaged immature permanent teeth.
- Arbeit zitieren
- Patrick Kimuyu (Autor:in), 2018, Mesenchymal Stem Cells as New Candidates for Stemcell Based Dental Therapies, München, GRIN Verlag, https://www.grin.com/document/388765
