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- W2555667516 abstract "Dental follicle stem cells (DFSCs) have been considered as promising candidate cells for periodontal tissue regeneration. Understanding the signalling pathways underlying the apoptosis of DFSCs will facilitate its biomedical application. Here we showed that Notch1 signalling could inhibit DFSCs apoptosis because the constitutive overexpression of the intracellular domain of Notch1 (ICN1) promoted proliferation and suppressed apoptosis by inhibiting cytoplasmic mitochondrial membrane depolarization, cytochrome c release and activation of caspase-9 and caspase-3. The survival-promoting effect of Notch1 was also accomplished by up-regulation of the anti-apoptotic proteins Bcl-2 and Mcl-1, down-regulation of the pro-apoptotic proteins Bax and Bad, and blockade of Bax multimerization. Moreover, p-Akt (S473) was significantly increased after ectopic Notch 1 activation. The expression of p53 was also inhibited in Notch1-overexpressing DFSCs, while the ectopic expression of p53 promoted apoptosis even when Notch1 was overexpressed. Meanwhile, all of the opposite phenomena were observed in Notch1 shRNA-silenced DFSCs. Our data strongly suggested that Notch1 signalling inhibited the apoptosis of DFSCs via the cytoplasmic mitochondrial pathway and ICN-Akt signalling pathway, together with nuclear gene expression regulation. These findings would provide molecular cues for the further medical application of DFSCs." @default.
- W2555667516 created "2016-11-30" @default.
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- W2555667516 date "2017-01-01" @default.
- W2555667516 modified "2023-10-16" @default.
- W2555667516 title "Notch1 signalling inhibits apoptosis of human dental follicle stem cells via both the cytoplasmic mitochondrial pathway and nuclear transcription regulation" @default.
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- W2555667516 doi "https://doi.org/10.1016/j.biocel.2016.11.013" @default.
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