Autophagy Plays a Crucial Role in Ameloblast Differentiation.
Autophagy Plays a Crucial Role in Ameloblast Differentiation.
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DOI:
10.1177/00220345231169220
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发表时间:
2023-08
影响因子:
7.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Tooth enamel is generated by ameloblasts. Any failure in amelogenesis results in defects in the enamel, a condition known as amelogenesis imperfecta. Here, we report that mice with deficient autophagy in epithelial-derived tissues (K14-Cre;Atg7 F/F and K14-Cre;Atg3 F/F conditional knockout mice) exhibit amelogenesis imperfecta. Micro–computed tomography imaging confirmed that enamel density and thickness were significantly reduced in the teeth of these mice. At the molecular level, ameloblast differentiation was compromised through ectopic accumulation and activation of NRF2, a specific substrate of autophagy. Through bioinformatic analyses, we identified Bcl11b, Dlx3, Klk4, Ltbp3, Nectin1, and Pax9 as candidate genes related to amelogenesis imperfecta and the NRF2-mediated pathway. To investigate the effects of the ectopic NRF2 pathway activation caused by the autophagy deficiency, we analyzed target gene expression and NRF2 binding to the promoter region of candidate target genes and found suppressed gene expression of Bcl11b, Dlx3, Klk4, and Nectin1 but not of Ltbp3 and Pax9. Taken together, our findings indicate that autophagy plays a crucial role in ameloblast differentiation and that its failure results in amelogenesis imperfecta through ectopic NRF2 activation.
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DOI:
10.1155/2013/684607
发表时间:
2013-09-16
期刊:
ISRN dentistry
影响因子:
--
作者:
Bartlett JD
通讯作者:
Bartlett JD
影响因子:
14.9
作者:
Malhotra D;Portales-Casamar E;Singh A;Srivastava S;Arenillas D;Happel C;Shyr C;Wakabayashi N;Kensler TW;Wasserman WW;Biswal S
通讯作者:
Biswal S
影响因子:
4
作者:
Smith CEL;Kirkham J;Day PF;Soldani F;McDerra EJ;Poulter JA;Inglehearn CF;Mighell AJ;Brookes SJ
通讯作者:
Brookes SJ
影响因子:
3.5
作者:
Barron, Martin J.;Brookes, Steven J.;Dixon, Michael J.
通讯作者:
Dixon, Michael J.
DOI:
10.1083/jcb.200412022
发表时间:
2005-05-09
期刊:
The Journal of cell biology
影响因子:
--
作者:
Komatsu M;Waguri S;Ueno T;Iwata J;Murata S;Tanida I;Ezaki J;Mizushima N;Ohsumi Y;Uchiyama Y;Kominami E;Tanaka K;Chiba T
通讯作者:
Chiba T