Quercetin Promotes the Osteogenic Differentiation of Rat Mesenchymal Stem Cells Via Mitogen-activated Protein Kinase Signaling
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The aim of the present study was to investigate the effects of quercetin on the mitogen-activated protein kinase (MAPK) signaling pathway in the osteogenic differentiation of rat mesenchymal stem cells (MSCs). A 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and an alkaline phosphatase (ALP) assay were used to determine the effects of quercetin (concentrations of 0.1, 1 and 10 µmol/l) on the proliferation and differentiation of MSCs and the expression of ALP, respectively. In addition, through the introduction of inhibitors of p38 MAPK, extracellular signal-regulated kinase (ERK)1/2 and c-Jun NH-terminal kinase (JNK), the effects of quercetin on the proteins, ALP, collagen type I (COL I) and bone γ-carboxyglutamate protein (BGP), which are indicators of osteogenic differentiation, were investigated. Immunoblotting was performed to determine the phosphorylation levels of p38 MAPK, ERK1/2 and JNK, while fluorescent quantitative polymerase chain reaction was used to determine the mRNA expression levels of transforming growth factor (TGF)-β1, bone morphogenetic protein (BMP)-2 and core binding factor (CBF)α1. At all the concentrations tested, the concentrations of 10, 1 and 0.1 µmol/l quercetin were shown to promote the differentiation of MSCs and the expression of ALP, in which the concentration of 10 µmol/l was optimal. When compared with the control group, the phosphorylation levels of p38 MAPK, ERK1/2 and JNK, the protein expression levels of ALP, COL I and BGP, and the mNRA expression levels of TGF-β1, BMP-2 and Cbfα1 were increased in the quercetin-treated group. However, with the introduction of inhibitors, the levels of phosphorylated p38 MAPK, ERK1/2 and JNK, and the protein expression levels of ALP, COL I and BGP decreased. Furthermore, the mRNA expression levels of TGF-β1, BMP-2 and CBFα1 decreased in the quercetin + SP600125 (inhibitor of JNK) and quercetin + PD98059 (inhibitor of ERK1/2) groups. Therefore, quercetin was demonstrated to promote the osteogenic differentiation of MSCs by activating the MAPK signaling pathway. The ERK1/2 and JNK signaling pathways regulate the expression of TGF-β1, BMP-2 and CBFα1. Thus, activation of the ERK1/2 and JNK signaling pathways may play a leading role in the quercetin-promoted osteogenic proliferation and differentiation of MSCs.
Pimenta I, Chaves Filho G, Silva E, Nogueira L, de Mendonca T, Furtado T ACS Omega. 2025; 10(5):4836-4846.
PMID: 39959088 PMC: 11822716. DOI: 10.1021/acsomega.4c09949.
Zhu H, Cai C, Yu Y, Zhou Y, Yang S, Hu Y Adv Sci (Weinh). 2024; 11(29):e2403412.
PMID: 38749005 PMC: 11304245. DOI: 10.1002/advs.202403412.
Xiong Y, Huang C, Shi C, Peng L, Cheng Y, Hong W Exp Biol Med (Maywood). 2024; 248(23):2363-2380.
PMID: 38240215 PMC: 10903250. DOI: 10.1177/15353702231211977.
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Tang X, Huang Y, Fang X, Tong X, Yu Q, Zheng W Front Med (Lausanne). 2023; 10:1289144.
PMID: 38111697 PMC: 10725965. DOI: 10.3389/fmed.2023.1289144.
Giordani C, Matacchione G, Giuliani A, Valli D, Scarpa E, Antonelli A Int J Mol Sci. 2023; 24(10).
PMID: 37240169 PMC: 10218531. DOI: 10.3390/ijms24108820.