Details
Disease Name Alzheimer Disease
Nocoding RNA Name hsa-miR-26b
Expression Pattern up-regulated
Species Homo sapiens
Detection Methods qRT-PCR,Western Blot,Luciferase Reporter Assay etc.
Target Rb1
Tissue brain
Treatment N/A
PubMed ID 24027266
Year 2013
Detail Description Ectopic overexpression of miR-26b in rat primary postmitotic neurons led to the DNA replication and aberrant cell cycle entry (CCE) and, in parallel, increased tau-phosphorylation, which culminated in the apoptotic cell death of neurons. Similar tau hyperphosphorylation and CCE are typical features of neurons in pre-AD brains.Sequence-specific inhibition of miR-26b in culture is neuroprotective against oxidative stress. Retinoblastoma protein (Rb1), a major tumor suppressor, appears as the key direct miR-26b target, which mediates the observed neuronal phenotypes. The downstream signaling involves upregulation of Rb1/E2F cell cycle and pro-apoptotic transcriptional targets, including cyclin E1, and corresponding downregulation of cell cycle inhibitor p27/Kip1.Elevated levels of miR-26b may thus contribute to the AD neuronal pathology.

 

NSDNA: The Nervous System Disease NcRNAome Atlas

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