IndraLab

Statements


MiR-9 activates KCNMA1. 4 / 4
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"Interestingly, miR-9 also targets the BK channel (large conductance calcium- and voltage activated potassium channel) and selectively destabilizes splice variants, resulting in downregulation of the alcohol specific splice variant."

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"An elegant study by Pietrzykowski and colleagues showed that miR-9, upregulated upon exposure to ethanol, specifically targets a subset of BK channel splice variants that contain miR-9 MREs in their 3 '-UTRs in rat supraoptic nucleus explants."

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"107 Intriguingly, miR-9 preferentially targets and degrades transcripts of BK channel isoforms sensitive to alcohol potentiation, whereas transcripts encoding alcohol-tolerant channels tend to lack miR-9-binding sites in their 3 '-UTRs."

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"Alcohol up-regulates miR-9, which targets the BK channel subunits, leading to post-transcriptional reorganization of BK splice variants and resulting in down-regulation of the specific splice variant that is sensitive to alcohol."