Dataset Information

MiR?483?3p regulates osteogenic differentiation of bone marrow mesenchymal stem cells by targeting STAT1.

ABSTRACT: Osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) is regulated by a variety of intracellular regulatory factors including osterix, runt?related transcription factor 2 (RUNX2), bone morphogenetic proteins and transforming growth factor?. Recent studies have shown that microRNAs (miRs) serve a crucial role in this process. In the present study, miR?483?3p levels were significantly increased during osteogenic differentiation of mouse and human BMSCs. Overexpression of miR?483?3p promoted osteogenic differentiation, whereas inhibition of miR?483?3p reversed these effects. miR?483?3p regulated osteogenic differentiation of BMSCs by targeting STAT1, and thus enhancing RUNX2 transcriptional activity and RUNX2 nuclear translocation. In vivo, overexpression of miR?483?3p using a BMSC?specific aptamer delivery system stimulated bone formation in aged mice. Therefore, the present study suggested that miR?483?3p promoted osteogenic differentiation of BMSCs by targeting STAT1, and miR?483?3 prepresent a potential therapeutic target for age?related bone loss.

SUBMITTER: Xiao Y

PROVIDER: S-EPMC6797999 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

miR‑483‑3p regulates osteogenic differentiation of bone marrow mesenchymal stem cells by targeting STAT1.

Xiao Ye Y Guo Qi Q Jiang Tie-Jian TJ Yuan Ying Y Yang Li L Wang Guang-Wei GW Xiao Wen-Feng WF

Molecular medicine reports 20190924 5

Osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) is regulated by a variety of intracellular regulatory factors including osterix, runt‑related transcription factor 2 (RUNX2), bone morphogenetic proteins and transforming growth factorβ. Recent studies have shown that microRNAs (miRs) serve a crucial role in this process. In the present study, miR‑483‑3p levels were significantly increased during osteogenic differentiation of mouse and human BMSCs. Overexpression of miR‑483 ...[more]

PMID: 31702021

Similar Datasets

Project description:The authors' previous study demonstrated that miR‑128 may exert an inhibitory effect on the osteogenic differentiation of bone marrow‑derived mesenchymal stem cells (BM‑MSCs), but its downstream mechanisms remain to be elucidated. The aim of the present study was to investigate the microRNA (miRNA/miR) and mRNA profiles of differentiated and undifferentiated BM‑MSCs and explore new downstream targets for miR‑128. The sequencing datasets of GSE107279 (miRNA) and GSE112318 (mRNA) were downloaded from the Gene Expression Omnibus database. The differentially expressed miRNAs (DEMs) and genes (DEGs) were identified using the DESeq2 method. The target genes of DEMs were predicted by the miRwalk 2.0 database. The hub target genes of miR‑128 were screened by constructing the protein‑protein interaction (PPI) network and module analysis. The expression levels of miR‑128 and crucial target genes were validated by reverse transcription‑quantitative (RT‑q) PCR before or after transfection of miR‑128 mimics to BM‑MSCs. The miRNA expression profile analysis identified miR‑128 as one of the significantly downregulated DEMs (total 338) in differentiated BM‑MSCs compared with the undifferentiated control. A total of 103 predicted target genes of miR‑128‑3p were overlapped with upregulated DEGs. By calculating the topological properties of each protein in the PPI network, 6 upregulated genes (KIT, NTRK2, YWHAB, GAB1, AXIN1 and RUNX1; fold change was the highest for NTRK2) were considered to be hub genes. Of these, 4 were enriched in module 4 (RUNX1, KIT, GAB1 and AXIN1; RUNX1 was particularly crucial as it can interact with the others), while one was enriched in module 7 (YWHAB). The expression levels of miR‑128 and these 6 target genes during the osteogenic differentiation were experimentally confirmed by RT‑qPCR. In addition, the expression levels of these 6 genes were significantly reversed after transfection of miR‑128‑3p mimics into rat BM‑MSCs compared with the miR‑control group. These findings indicated that miR‑128‑3p may inhibit the osteoblast differentiation of BM‑MSCs by downregulation of these 6 genes, particularly RUNX1, YWHAB and NTRK2.

Dataset Information

MiR?483?3p regulates osteogenic differentiation of bone marrow mesenchymal stem cells by targeting STAT1.

Publications

miR‑483‑3p regulates osteogenic differentiation of bone marrow mesenchymal stem cells by targeting STAT1.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets