RUNX1 regulates expression of components of tight junctions

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R-HSA-8935964
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Homo sapiens
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The RUNX1 transcription factor, which functions as part of the RUNX1:CBFB complex, was shown to directly transcriptionally regulate expression of several genes that encode components of tight junctions. Namely, RUNX1 binds to promoters of TJP1 (encoding ZO-1), OCLDN (encoding Occludin) and CLDN5 (encoding Claudin-5) and stimulates their transcription. Downregulation of RUNX1 by microRNA miR-18a negatively regulates expression of these three tight junction genes, which may affect the permeability of blood-tumor barrier in glioma (Miao et al. 2015).

Literature References
PubMed ID Title Journal Year
25452107 MiR-18a increased the permeability of BTB via RUNX1 mediated down-regulation of ZO-1, occludin and claudin-5

Miao, YS, Zhao, YY, Zhao, LN, Wang, P, Liu, YH, Ma, J, Xue, YX

Cell. Signal. 2015
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