PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32350039-0 2020 Idebenone Has Distinct Effects on Mitochondrial Respiration in Cortical Astrocytes Compared to Cortical Neurons Due to Differential NQO1 Activity. idebenone 0-9 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 132-136 32350039-3 2020 NAD(P)H:quinone oxidoreductase 1 (NQO1) appears to be the main intracellular enzyme catalyzing idebenone reduction. idebenone 95-104 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 0-32 32350039-3 2020 NAD(P)H:quinone oxidoreductase 1 (NQO1) appears to be the main intracellular enzyme catalyzing idebenone reduction. idebenone 95-104 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 34-38 32350039-5 2020 Using primary rat cortical cells pooled from both sexes, we tested the hypotheses that the level of endogenous NQO1 activity limits the ability of neurons, but not astrocytes, to use idebenone as an electron donor to support mitochondrial respiration. idebenone 183-192 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 111-115 32350039-6 2020 We then tested the prediction that NQO1 induction by pharmacological activation of the transcription factor nuclear erythroid 2-related factor 2 (Nrf2) enables idebenone to bypass Complex I in cells with poor NQO1 expression. idebenone 160-169 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 35-39 32350039-8 2020 Importantly, idebenone supported mitochondrial oxygen consumption in the presence of a Complex I inhibitor in astrocytes but not neurons, and this ability was reversed by inhibiting NQO1. idebenone 13-22 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 182-186 32350039-11 2020 Carnosic acid-idebenone combination treatment promoted NQO1-dependent Complex I bypass activity in these cells. idebenone 14-23 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 55-59 32350039-12 2020 Thus, combination drug strategies targeting NQO1 may promote the repurposing of idebenone for additional disorders.SIGNIFICANCE STATEMENT Idebenone is used clinically to treat loss of visual acuity in Leber"s hereditary optic neuropathy. idebenone 138-147 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 44-48 32350039-16 2020 Our results suggest that idebenone behaves as an NQO1-dependent prodrug, raising the possibility that lack of neuronal NQO1 activity has contributed to the limited efficacy of idebenone in neurodegenerative disease treatment. idebenone 25-34 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 49-53 32350039-17 2020 Combination therapy with drugs able to safely induce NQO1 in neurons, as well as other brain cell types, may be able to unlock the neuroprotective therapeutic potential of idebenone or related quinones. idebenone 172-181 NAD(P)H quinone dehydrogenase 1 Rattus norvegicus 53-57