Our data prove that this ex vivo approach closely reproduces the in vitro results while retaining the full complexity of the system. We demonstrate that co-presence of bacterial frataxin and iron is necessary to observe an inhibitory effect of the enzymatic activity of bacterial frataxin. Our approach provides a new powerful tool for the study of iron-sulfur cluster biogenesis.
Thursday, May 19, 2022
Towards a metabolomic approach to investigate iron-sulfur cluster biogenesis
Marengo M, Fissore A, Oliaro-Bosso S, Adinolfi S, Pastore A.; IUBMB Life. 2022 Apr 27. doi: 10.1002/iub.2618. Epub ahead of print. PMID: 35474632.
Novel Regulatory Role of SIRT3 on Cardiomyocyte Mitochondrial Frataxin and Ferroptosis
Cantrell A, Su H, Zeng H, Chen JX.; FASEB J. 2022 May;36 Suppl 1. doi: 10.1096/fasebj.2022.36.S1.R2008. PMID: 35557151.
We have demonstrated that cardiomyocyte SIRT3 deficiency causes mitochondrion-specific acetylation and impairment of frataxin and ferroportin potentially via downregulation of HIF-2α. Our results suggest that the SIRT3-ferroptosis pathway may be a novel target for the mitochondrial cardiomyopathy of FRDA.
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