Melatonin contributes to the hypertrophic differentiation of mesenchymal stem cell-derived chondrocytes via activation of the Wnt/?-catenin signaling pathway
نویسندگان
چکیده
Abstract Background Hypertrophy is a critical process for chondrocyte differentiation and maturation during endochondral ossification, which responsible the formation of long bone postnatal longitudinal growth. Increasing evidence suggests that melatonin, an indole hormone, plays pivotal role in chondrogenesis. However, little known about effects melatonin on terminal chondrocytes. Methods Mesenchymal stem cell (MSC)-derived chondrocytes generated by high-density micromass culture system were induced to undergo hypertrophic differentiation. Melatonin-mediated was examined reverse transcription polymerase chain reaction analysis (RT-PCR) analysis, histological staining immunohistochemistry. Activation Wnt signaling pathway evaluated PCR array, RT-PCR, western blotting immunofluorescence. XAV-939, antagonist, further used determine whether effect mediated occurred activation pathway. Results Histological showed increased volume expression type X collagen but decreased II compared with control group. RT-PCR significantly up-regulated gene expressions biomarkers chondrocytes, including collagen, alkaline phosphatase, runt-related factor 2, Indian hedgehog parathyroid hormone-related protein receptor, down-regulated mRNA hallmarks protein. array accompanied up-regulation multiple target genes canonical pathway, this blocked XAV-939. Conclusions The current findings demonstrate enhances MSC-derived through Our add promoting development highlight positive
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ژورنال
عنوان ژورنال: Stem Cell Research & Therapy
سال: 2021
ISSN: ['1757-6512']
DOI: https://doi.org/10.1186/s13287-021-02536-x