Biochem/physiol Actions
DMOG is a cell permeable prolyl-4-hydroxylase inhibitor, which upregulates HIF (hypoxia-inducible factor). The protein level of HIF-1α subunit is post-transcriptionally regulated by prolyl and asparaginyl hydroxylase (PAH). Suppression of PAH activity increases endogenous HIF-1α levels. DMOG is a cell permeable, competitive inhibitor of prolyl hydroxylase domain-containing proteins (PHDs and HIF-PHs). It has been discovered that the DMOG posseses neuroprotective effect on NFG deprived cell cultures through preservation of glucose metabolism. DMOG also attenuates myocardial injury in a rabbit ischemia reperfusion model. DMOG is more potent than the older inhibitor 4-Phenyl-pyridine-2,5-dicarboxylic acid (R395889; Sigma-Aldrich rare chemicals library). The IC50 is 5.18 μM.