Study on the role of FoxO1 in the regulation of osteoblastic metabolism by 1,25(OH) 2 D 3 in a high glucose envi⁃ronment
10.12016/j.issn.2096⁃1456.2020.01.004
- Author:
ZHOU Jiaqi
1
;
SHU Linjing
2
;
XIONG Yi
3
;
ZHANG Yixin
1
;
XIANG Lin
4
Author Information
1. State Key Lab⁃oratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sich⁃uan University
2. . Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University
3. Department of Oral Implantology, West China Hospital of Stomatolo⁃gy, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Sichuan University
4. Department of Oral Implantology, West China Hospital of Stomatology, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Sichuan University⁃
- Publication Type:Journal Article
- Keywords:
osteoblast;
osteogenic differentiation;
hyperglycemia;
diabetes;
forkhead transcription factor 1
- From:
Journal of Prevention and Treatment for Stomatological Diseases
2020;28(1):24-29
- CountryChina
- Language:Chinese
-
Abstract:
Objective:Yingying, Email: yywdentist@163.com, Tel: 86⁃28⁃85503579
【Abstract】 Objective To explore the effect of 1,25(OH) 2 D 3 on the regulation of bone metabolism in a high⁃glucose
environment and to provide evidence for the possible regulatory mechanism of 1,25(OH) 2 D 3 on osteoblasts in a high⁃glu⁃
cose environment.
Methods:The osteoblast cell line MC3T3⁃E1 was cultured in 3 groups: ① control group, cultured
in low⁃glucose (5.5 mmol/L) DMEM; ② high⁃glucose group: cultured in high⁃glucose (22 mmol/L) DMEM; ③ high⁃glu⁃
cose +1,25(OH) 2 D 3 group: high⁃glucose DMEM + 1,25(OH) 2 D 3 medium culture. The CCK⁃8 method was used to detect cell proliferation in each group; Annexin V and FITC apoptosis kits were used to detect apoptosis; Alizarin red was used
to semiquantitatively analyze cell differentiation; qRT⁃PCR was used to detect forkhead transcription factor⁃1 (forkhead
transcription factor 1, FoxO1) mRNA expression. Immunofluorescence was used to observe the changes in FoxO1 pro⁃
tein expression and its relative position in the nucleus.
Results:ence was used to observe the changes in FoxO1 pro⁃
tein expression and its relative position in the nucleus. Results Our analysis showed that compared with those in the
control group, the osteoblast apoptosis and proliferation in the high⁃glucose group were improved, while differentiation
was inhibited (P < 0.05); at the same time, the mRNA expression of FoxO1(P = 0.006) was reduced. The immunofluores⁃
cence results showed that more FoxO1 was inside the nucleus (P < 0.001). Compared with those in the high⁃glucose
group, excessive proliferation was inhibited, apoptosis was reduced, and osteogenic differentiation was improved in the
high⁃glucose +1,25(OH) 2 D 3 group (P < 0.05); furthermore, FoxO1 mRNA was decreased (P = 0.006), and the transfer of
FoxO1 protein was blocked (P < 0.001).
Conclusion :re, FoxO1 mRNA was decreased (P = 0.006), and the transfer of
FoxO1 protein was blocked (P < 0.001). Conclusion We found that 1,25(OH) 2 D 3 may prevent the transfer of FoxO1 to
the cell nucleus, inhibit the abnormal proliferation and apoptosis of osteoblasts in a high⁃glucose environment, and re⁃
verse the inhibitory effect of high glucose on the differentiation of osteoblasts.
- Full text:FoxO1在1,25（OH）2D3调控高糖环境下成骨细胞代谢中的作用2.pdf
