Abstract
Background
An experimental study was conducted to examine whether melatonin influences osteogenic/odontogenic differentiation of human stem cells derived from the apical papilla (hSCAPs).
Materials and methods
In order to isolate hSCAPs, the undeveloped root of a third molar of a human tooth was used. Melatonin was administered to the experimental groups in an osteogenic medium. No treatment was administered to the control group. The methyl thiazolyl tetrazolium (MTT) assay was performed on days 1, 2, and 3 to assess cell viability (n = 8). A determination of odontogenic/osteogenic differentiation was accomplished using alkaline phosphatase (ALP) activity alizarin red staining (ARS) (n = 6), and the expression of osteogenic genes by real-time polymerase chain reaction (RT-PCR) (n = 3) on days 1, 2, and 7. Evaluation of the data was conducted using SPSS version 18. All experiments were conducted at least three times. The Mann Whitney U test, the ANOVA analysis, Tukey’s test, and t-test was implemented to analyze the data (α = 0.05).
Results
After 24 h, 48 h, and 72 h, No significant difference was observed between the control group and the melatonin treatment group in terms of viability of hSCAPs. (from 1 up to 10 µg/ml) (P > 0.05). The assessment of ARS and ALP activity showed that melatonin treatment enhanced osteogenic differentiation of hSCAPs (P < 0.001). Melatonin treatment caused hSCAPs to show an increase of genes related to osteogenic/odontogenic differentiation. These genes included ALP, dentin sialophosphoprotein (DSPP), dentin matrix protein 1 (DMP-1), and bone sialoprotein (BSP) (P < 0.001).
Conclusions
Melatonin treatment enhanced osteogenic/odontogenic differentiation of hSCAPs with a dose dependent effect on cell viability.
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Data Availability
The corresponding author, Elham Khoshbin, possesses the entire documentation of the study participant and other data, which can be accessed through a reasonable request.
Abbreviations
- hSCAPs:
-
Human Stem cells from the apical papilla
- MTT:
-
Methyl thiazolyl tetrazolium
- ISSCR:
-
International Society for Stem Cells Research
- qrt-PCR:
-
Quantitative reverse-transcription polymerase chain reaction
- ARS:
-
Alizarin red staining
- LLL:
-
Low level laser
- LLLI:
-
Low level laser irradiation
- LLLT:
-
Low level laser therapy
- ALP:
-
Alkaline phosphatase
- DSPP:
-
Dentin sialophosphoprotein
- DMP1:
-
Dentin matrix protein 1
- BSP:
-
Bone sialoprotein
- DPSCs:
-
Dental pulp stem cells
- hPDL:
-
Human periodontal ligament
- hPDLSCs:
-
Human periodontal ligament stem cells
- LED:
-
Light-emitting diode
- PBS:
-
Phosphate-buffered saline
- SPSS:
-
Statistical Package of the Social Sciences
- SEM:
-
Standard error of the mean
- Fig:
-
Figure
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Acknowledgements
The Vice-Chancellor of Research and Technology of the Hamadan University of Medical Sciences provided funding for this study (140111119663).
Funding
The Vice-Chancellor of Research and Technology of the Hamadan University of Medical Sciences provided funding for this study (140111119663).
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Hamed Karkehabadi: Conceptualization; Study selection; Data collection; Quality assessment; Methodology; Project administration; Resources; Supervision; Validation; Visualization; Writing (review/ editing). Roshanak Abbasi: Conceptualization; Study selection; Data collection; Quality assessment; Methodology; Project administration; Resources; Supervision; Validation; Visualization; Writing (original draft). Rezvan Najafi: Conceptualization; Study selection; Data collection; Quality assessment; Methodology; Project administration; Resources; Supervision; Validation; Visualization: Elham Khoshbin: Conceptualization; Study selection; Data collection; Quality assessment; Methodology; Project administration; Resources; Supervision; Validation; Visualization; Writing (review/ editing). The final manuscript was read and approved by all authors.
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The research was carried out in accordance with the ISSCR Guidelines for Stem Cell Research and Clinical Translation, and received approval from the ethics committee of Hamadan University of Medical Sciences (IR.UMSHA.REC.1401.605). The study’s procedure was conducted following ethical standards established in the 1964 Helsinki Declaration and its subsequent amendments.
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The patient who was enrolled in the trial received a thorough explanation of the procedures involved. The participant signed an informed permission form for the express aim of using the extracted teeth for study prior to the extraction at the Department of Oral and Maxillofacial Surgery, Hamadan University of Medical Sciences.
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Karkehabadi, H., Abbasi, R., Najafi, R. et al. The effects of melatonin on the viability and osteogenic/odontogenic differentiation of human stem cells from the apical papilla. Mol Biol Rep 50, 8959–8969 (2023). https://doi.org/10.1007/s11033-023-08747-0
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DOI: https://doi.org/10.1007/s11033-023-08747-0