LGR6 promotes osteogenesis by activating the Wnt/ß-catenin signaling pathway.
Biochem Biophys Res Commun
; 519(1): 1-7, 2019 10 29.
Article
em En
| MEDLINE
| ID: mdl-31500806
ABSTRACT
Leucine-rich repeat containing G-protein-coupled receptor 6 (LGR6) is a member of the rhodopsin-like 7-transmembrane domain receptor superfamily and has high homology to LGR4 and LGR5. LGR6 is highly expressed in osteoblastic progenitors, and LGR6-deficient mice show nail and bone regeneration defect. However, the effect of LGR6 on the osteogenic differentiation of osteoblastic progenitors and its underlying mechanisms are largely unknown. In this study, we overexpressed and knockdown LGR6 with lentivirus in the preosteoblastic cell MC3T3-E1 to observe the effect of LGR6 on osteogenic differentiation and explore its possible molecular mechanism. LGR6 overexpression promoted osteogenic differentiation and mineralization by stabilizing ß-catenin to potentiate the Wnt/ß-catenin signaling pathway in MC3T3-E1 cells. Conversely, LGR6 knockdown inhibited osteogenic differentiation and mineralization by enhancing ß-catenin degradation to inactivate the Wnt/ß-catenin signaling pathway. These results reveal that LGR6 is highly expressed in osteoblastic progenitors, and promotes osteogenesis by enhancing ß-catenin stability to strengthen the Wnt signaling pathway. This study provides an important reference into the exact mechanisms of osteogenic differentiation.
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Base de dados:
MEDLINE
Assunto principal:
Osteogênese
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Receptores Acoplados a Proteínas G
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Via de Sinalização Wnt
Limite:
Animals
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article