PMID- 37047537 OWN - NLM STAT- MEDLINE DCOM- 20230417 LR - 20230417 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 24 IP - 7 DP - 2023 Mar 31 TI - Altered Mitochondrial Dynamic in Lymphoblasts and Fibroblasts Mutated for FANCA-A Gene: The Central Role of DRP1. LID - 10.3390/ijms24076557 [doi] LID - 6557 AB - Fanconi anemia (FA) is a rare genetic disorder characterized by bone marrow failure and aplastic anemia. So far, 23 genes are involved in this pathology, and their mutations lead to a defect in DNA repair. In recent years, it has been observed that FA cells also display mitochondrial metabolism defects, causing an accumulation of intracellular lipids and oxidative damage. However, the molecular mechanisms involved in the metabolic alterations have not yet been elucidated. In this work, by using lymphoblasts and fibroblasts mutated for the FANC-A gene, oxidative phosphorylation (OxPhos) and mitochondria dynamics markers expression was analyzed. Results show that the metabolic defect does not depend on an altered expression of the proteins involved in OxPhos. However, FA cells are characterized by increased uncoupling protein UCP2 expression. FANC-A mutation is also associated with DRP1 overexpression that causes an imbalance in the mitochondrial dynamic toward fission and lower expression of Parkin and Beclin1. Treatment with P110, a specific inhibitor of DRP1, shows a partial mitochondrial function recovery and the decrement of DRP1 and UCP2 expression, suggesting a pivotal role of the mitochondrial dynamics in the etiopathology of Fanconi anemia. FAU - Bertola, Nadia AU - Bertola N AUID- ORCID: 0000-0003-4591-3260 AD - Department of Experimental Medicine, University of Genoa, Via De Toni 14, 16132 Genova, Italy. FAU - Bruno, Silvia AU - Bruno S AD - Department of Experimental Medicine, University of Genoa, Via De Toni 14, 16132 Genova, Italy. FAU - Capanni, Cristina AU - Capanni C AD - CNR Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza", Unit of Bologna, Via di Barbiano 1/10, 40136 Bologna, Italy. AD - IRCCS Rizzoli Orthopedic Institute, Via Pupilli 1, 40136 Bologna, Italy. FAU - Columbaro, Marta AU - Columbaro M AD - Electron Microscopy Platform, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy. FAU - Mazzarello, Andrea Nicola AU - Mazzarello AN AUID- ORCID: 0000-0003-2167-8817 AD - Department of Experimental Medicine, University of Genoa, Via De Toni 14, 16132 Genova, Italy. FAU - Corsolini, Fabio AU - Corsolini F AD - Laboratory for the Study of Inborn Errors of Metabolism-Pediatric Clinic and Endocrinology IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16148 Genova, Italy. FAU - Regis, Stefano AU - Regis S AUID- ORCID: 0000-0002-7723-2294 AD - Laboratory of Clinical and Experimental Immunology, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy. FAU - Degan, Paolo AU - Degan P AD - U.O. Mutagenesis, IRCCS AOU San Martino-IST (Istituto Nazionale per la Ricerca sul Cancro), Largo Rosanna Benzi 10, 16132 Genova, Italy. FAU - Cappelli, Enrico AU - Cappelli E AD - Hematology Unit, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16148 Genova, Italy. FAU - Ravera, Silvia AU - Ravera S AUID- ORCID: 0000-0002-0803-1042 AD - Department of Experimental Medicine, University of Genoa, Via De Toni 14, 16132 Genova, Italy. LA - eng PT - Journal Article DEP - 20230331 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (FANCA protein, human) RN - 0 (Fanconi Anemia Complementation Group A Protein) RN - 0 (Proteins) RN - EC 3.6.5.5 (Dynamins) SB - IM MH - Humans MH - *Fanconi Anemia/metabolism MH - Fanconi Anemia Complementation Group A Protein/genetics/metabolism MH - Fibroblasts/metabolism MH - Mitochondria/metabolism MH - *Mitochondrial Dynamics/genetics MH - Proteins/metabolism MH - Dynamins/metabolism PMC - PMC10094900 OTO - NOTNLM OT - Fanconi anemia OT - OxPhos OT - aerobic metabolism OT - fission OT - fusion OT - mitochondrial dynamics COIS- The authors declare no conflict of interest. EDAT- 2023/04/14 06:00 MHDA- 2023/04/14 06:41 PMCR- 2023/03/31 CRDT- 2023/04/13 01:12 PHST- 2022/12/19 00:00 [received] PHST- 2023/03/02 00:00 [revised] PHST- 2023/03/21 00:00 [accepted] PHST- 2023/04/14 06:41 [medline] PHST- 2023/04/13 01:12 [entrez] PHST- 2023/04/14 06:00 [pubmed] PHST- 2023/03/31 00:00 [pmc-release] AID - ijms24076557 [pii] AID - ijms-24-06557 [pii] AID - 10.3390/ijms24076557 [doi] PST - epublish SO - Int J Mol Sci. 2023 Mar 31;24(7):6557. doi: 10.3390/ijms24076557.