Post-transcriptional Regulation of Human Pregnane X Receptor by Micro-RNA Affects the Expression of Cytochrome P450 3A4

Abstract excerpt

Pregnane X receptor (PXR) is a major transcription factor regulating the inducible expression of a variety of transporters and drug-metabolizing enzymes, including CYP3A4 (cytochrome P450 3A4). We first found that the PXR mRNA level was not correlated with the PXR protein level in a panel of 25 human livers, indicating the involvement of post-transcriptional regulation. Notably, a potential miR-148a recognition...

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