17β-estradiol regulates the differentiation of cementoblasts via Notch signaling cascade.

Abstract:

:Estrogen has been well recognized as a key factor in the homeostasis of bone and periodontal tissue, but the way it regulates the activities of cementoblasts, the cell population maintaining cementum has not been fully understood. In this study, we examined the expression of estrogen receptor in OCCM-30 cells and the effect of 17β-estradiol (E2) on the proliferation and differentiation of OCCM-30 cells. We found that both estrogen receptor α and β were expressed in OCCM-30 cells. E2 exerted no significant influence on the proliferation of OCCM-30 cells, but inhibited the transcription and translation of BSP and Runx2 in the early phase of osteogenic induction except the BSP mRNA. Afterwards in the late phase of osteogenic induction, E2 enhanced the transcription and translation of BSP and Runx2 and promoted the calcium deposition. In addition, the expression level of Notch1, NICD and Hey1 mRNAs responded to exogenous E2 in a pattern similar to that of the osteoblastic markers. DAPT could attenuate the effect of E2 on the expression of osteoblastic markers. These findings indicated that E2 might regulate the differentiation of cementoblasts via Notch signaling.

authors

Liao J,Zhou Z,Huang L,Li Y,Li J,Zou S

doi

10.1016/j.bbrc.2016.06.028

subject

Has Abstract

pub_date

2016-08-12 00:00:00

pages

109-114

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(16)30946-9

journal_volume

477

pub_type

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