Abstract：
BACKGROUND:Alzheimer's disease (AD) is a progressive neuro-degenerative disease with a major manifestation of dementia. MicroRNAs were reported to regulate the transcript expression in patients with Alzheimer's disease (AD). In this study, we investigated the roles of miR-138, a brain-enriched miRNA, in the AD cell model. METHODS:The targets of miRNA-138 was predicted by bioinformatic analysis. The expression levels of DEK at both mRNA and protein levels were determined by qRT-PCR and Western blot, respectively. Luciferase assays were carried out to examine cell viabilities. Hoechst 33258 staining was used to detect cell apoptosis. RESULTS:Our results demonstrated that the expression levels of miR-138 were increased in AD model, and DEK was a target of miR-138. Overexpression of miR-138 in SH-SY5Y cells obviously down-regulated the expression of DEK in SH-SY5Y cells, resulting in the inactivation of AKT and increased expression levels of proapoptotic caspase-3. MiR-138 mediated-suppression of DEK increased the susceptibility of cell apoptosis. CONCLUSIONS:MicroRNA-138 promotes cell apoptosis of SH-SY5Y by targeting DEK in SH-SY5Y AD cell model. The regulation of miR-138 may contribute to AD via down-regulation of the DEK/AKT pathway.
journal_name
BMC Neuroscijournal_title
BMC neuroscienceauthors
Miao J,Jing J,Shao Y,Sun Hdoi
10.1186/s12868-020-00579-zsubject
Has Abstractpub_date
2020-07-31 00:00:00pages
33issue
1issn
1471-2202pii
10.1186/s12868-020-00579-zjournal_volume
21pub_type
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