1
|
Escobar LM, Grajales M, Bendahan Z, Jaimes S, Baldión P. Osteoblastic differentiation and changes in the redox state in pulp stem cells by laser treatment. Lasers Med Sci 2024; 39:87. [PMID: 38443654 PMCID: PMC10914891 DOI: 10.1007/s10103-024-04016-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 02/05/2024] [Indexed: 03/07/2024]
Abstract
The aim of this study was to determine the effect of low-level laser therapy (LLLT) on cell proliferation, mitochondrial membrane potential changes (∆Ψm), reactive oxygen species (ROS), and osteoblast differentiation of human dental pulp stem cells (hDPSCs). These cells were irradiated with 660- and 940-nm lasers for 5 s, 50 s, and 180 s. Cell proliferation was assessed using the resazurin assay, cell differentiation by RUNX2 and BMP2 expression, and the presence of calcification nodules using alizarin-red S staining. ROS was determined by the dichlorofluorescein-diacetate technique and changes in ∆Ψm by the tetramethylrhodamine-ester assay. Data were analyzed by a Student's t-test and Mann-Whitney U test. The 940-nm wavelength for 5 and 50 s increased proliferation at 4 days postirradiation. After 8 days, a significant decrease in proliferation was observed in all groups. Calcification nodules were evident in all groups, with a greater staining intensity in cells treated with a 940-nm laser for 50 s, an effect that correlated with increased RUNX2 and BMP2 expression. ROS production and Δψm increased independently of irradiation time. In conclusion, photobiomodulation (PBM) with LLLT induced morphological changes and reduced cell proliferation rate, which was associated with osteoblastic differentiation and increased ROS and Δψm, independent of wavelength and time.
Collapse
Affiliation(s)
- Lina M Escobar
- Grupo de Investigaciones Básicas y Aplicadas en Odontología, IBAPO Facultad de Odontología, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bloque 210, 111321, Bogotá, Colombia.
| | - Marggie Grajales
- Departamento de Salud Oral, Facultad de Odontología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Zita Bendahan
- Unidad de Manejo Integral de Malformaciones Craneofaciales UMIMC, Facultad de Odontología, Universidad El Bosque, Bogotá, Colombia
| | - Sully Jaimes
- Grupo de Investigaciones Básicas y Aplicadas en Odontología, IBAPO Facultad de Odontología, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bloque 210, 111321, Bogotá, Colombia
| | - Paula Baldión
- Departamento de Salud Oral, Facultad de Odontología, Universidad Nacional de Colombia, Bogotá, Colombia
| |
Collapse
|
2
|
Si D, Su B, Zhang J, Zhao K, Li J, Chen D, Hu S, Wang X. Low-level laser therapy with different irradiation methods modulated the response of bone marrow mesenchymal stem cells in vitro. Lasers Med Sci 2022; 37:3509-3516. [PMID: 36066778 DOI: 10.1007/s10103-022-03624-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/03/2022] [Indexed: 10/14/2022]
Abstract
Low-level laser therapy (LLLT) also known as photobiomodulation is a treatment to change cellular biological activity. The exact effects of LLLT remain unclear due to the different irradiation protocols. The purpose of this study was to investigate the effects of LLLT by three different irradiation methods on the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) in vitro. BMSCs were inoculated in 24-well plates and then irradiated or not (control) with a laser using three different irradiation methods. The irradiation methods were spot irradiation, covering irradiation, and scanning irradiation according to different spot areas (0.07 cm2 or 1.96 cm2) and irradiation areas (0.35 cm2 or 1.96 cm2), respectively. The laser was applied three times at energy densities of 4 J/cm2. The cell proliferation by CCK-8. ALP activity assay, alizarin red, and quantitative real-time polymerase chain reaction (RT-PCR) were performed to assess osteogenic differentiation and mineralization. Increases in cell proliferation was obvious following irradiation, especially for covering irradiation. The ALP activity was significantly increased in irradiated groups compared with non-irradiated control. The level of mineralization was obviously improved following irradiation, particularly for covering irradiation. RT-PCR detected significantly higher expression of ALP, OPN, OCN, and RUNX-2 in the group covering than in the others, and control is the lowest. The presented results indicate that the biostimulative effects of LLLT on BMSCs was influenced by t he irradiation method, and the covering irradiation is more favorable method to promote the proliferation and osteogenic differentiation of BMSCs.
Collapse
Affiliation(s)
- Daiwei Si
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Bo Su
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Jingwei Zhang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Kui Zhao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - JinMeng Li
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - DeChun Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - ShiQi Hu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China
| | - Xintao Wang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, Heilongjiang, China.
| |
Collapse
|
3
|
Mesenchymal Stem Cells Based Treatment in Dental Medicine: A Narrative Review. Int J Mol Sci 2022; 23:ijms23031662. [PMID: 35163584 PMCID: PMC8836082 DOI: 10.3390/ijms23031662] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/29/2022] [Accepted: 01/29/2022] [Indexed: 02/01/2023] Open
Abstract
Application of mesenchymal stem cells (MSC) in regenerative therapeutic procedures is becoming an increasingly important topic in medicine. Since the first isolation of dental tissue-derived MSC, there has been an intense investigation on the characteristics and potentials of these cells in regenerative dentistry. Their multidifferentiation potential, self-renewal capacity, and easy accessibility give them a key role in stem cell-based therapy. So far, several different dental stem cell types have been discovered and their potential usage is found in most of the major dental medicine branches. These cells are also researched in multiple fields of medicine for the treatment of degenerative and inflammatory diseases. In this review, we summarized dental MSC sources and analyzed their treatment modalities with particular emphasis on temporomandibular joint osteoarthritis (TMJ OA).
Collapse
|
4
|
Hendi SS, Gholami L, Saidijam M, Mahmoudi R, Arkian AA, Bakhtiyar H, Hasani NH, Afshar S. Photobiomodulation of inflamed dental pulp stem cells under different nutritional conditions. Regen Med 2021; 17:69-80. [PMID: 34931540 DOI: 10.2217/rme-2021-0056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The present study aimed to investigate photobiomodulation's (PBM) effect on inflamed dental pulp stem cells (IDPSCs) under different nutritional conditions. Methods: Cell proliferation and odontogenic differentiation were evaluated using the MTT assay and real-time quantitative reverse transcription PCR, respectively after laser PBM of cells in 5 or 10% fetal bovine serum (FBS) culture conditions. Results: A significant positive effect of laser irradiation on cell proliferation under both nutritional conditions after 24 and 48 h was observed. DMP-1 gene expression increased in the groups with laser irradiation and 5% FBS. Comparison of gene expression levels in the four groups revealed no statistically significant stimulatory effect. The highest gene expression was observed in the non-laser group with 5% FBS. Conclusion: Further studies are required to obtain an irradiation setup to ideally improve inflamed dental pulp stem cells' proliferation and differentiation.
Collapse
Affiliation(s)
- Seyedeh Sareh Hendi
- Department of Endodontics, Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Leila Gholami
- Department of Periodontics, Dental Research Center, School of dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Science, Iran
| | - Roghayeh Mahmoudi
- Research Center for Molecular Medicine, Hamadan University of Medical Science, Hamadan, Iran
| | - Ali Asghar Arkian
- Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Hengameh Bakhtiyar
- Department of Endodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Nasrin Haji Hasani
- East-Azarbaijan Agricultural & Natural Resources Research & Education Center, AREEO, Tabriz, Iran
| | - Saeid Afshar
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| |
Collapse
|
5
|
Gutiérrez D, Rouabhia M, Ortiz J, Gaviria D, Alfonso C, Muñoz A, Inostroza C. Low-Level Laser Irradiation Promotes Proliferation and Differentiation on Apical Papilla Stem Cells. J Lasers Med Sci 2021; 12:e75. [PMID: 35155160 PMCID: PMC8837851 DOI: 10.34172/jlms.2021.75] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 09/09/2021] [Indexed: 10/25/2023]
Abstract
Introduction: Low-level laser therapy (LLLT) has been reported to improve cell proliferation and differentiation. The stem cells derived from dental apical papilla (SCAPs) are a promising therapy because they are easily obtained from immature human teeth. The effect of LLLT over SCAPs is still unknown. This study aimed to evaluate the proliferation and osteogenic potential of the SCAPs stimulated with LLLT. Methods: SCAPs were isolated from the third molars of a healthy donor and characterized according to the minimum established criteria. SCAPs were cultured for 24 hours before being exposed to LLLT. Cells were exposed to different doses, energy, and wavelengths for selecting the irradiation parameters. SCAPs proliferation was evaluated with the MTT assay at 24 hours and 7-day post-laser exposure. VEGF and TGFβ2 expression were assessed with a specific enzyme-linked immunosorbent assay (ELISA). The osteogenic differentiation potential was analyzed with alizarin red staining, and the nodule quantification was performed by the relative optical density (ROD) analysis using ImageJ software. Results: The cells isolated from the apical papilla showed phenotype and stem cell properties. SCAPs irradiated with one dose at 6 J/m2 and 650 nm exhibited significantly higher proliferation (P>0.05) than the controls nonirradiated. LLLT stimulated SCAPs' expression of factors VEGF and TGFβ2. Also, SCAPs irradiated showed higher osteogenic activity (P<0.05). Conclusion: LLLT promotes proliferation, osteogenic differentiation, and VEGF and TGFβ2 expression on SCAPs. LLLT is a practical approach for the preconditioning of SCAPs in vitro for future regenerative therapies. More studies are needed to determine the underlying molecular processes that determine the mechanism of the LLLT.
Collapse
Affiliation(s)
- David Gutiérrez
- Faculty of dentistry, Buccal Innovation research group, Antonio Nariño University, Bogotá, Colombia
| | | | - Javiera Ortiz
- Centro de Investigación e Innovación Biomédica (CIIB), Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | | | - Camilo Alfonso
- Faculty of Dentistry, Research Group of Oral Health, Antonio Nariño University, Bogotá, Colombia
| | - Ana Muñoz
- Faculty of Science, Cellular and Functional Biology and Biomolecule Engineering Research Group, Antonio Nariño University, Bogotá, Colombia
- Hemolife National Blood Bank Foundation
| | - Carolina Inostroza
- Center for Research and Biomedical Innovation (CIIB), Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| |
Collapse
|