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Altintas DM, Gallo S, Basilico C, Cerqua M, Bocedi A, Vitacolonna A, Botti O, Casanova E, Rancati I, Milanese C, Notari S, Gambardella G, Ricci G, Mastroberardino PG, Boccaccio C, Crepaldi T, Comoglio PM. The PSI Domain of the MET Oncogene Encodes a Functional Disulfide Isomerase Essential for the Maturation of the Receptor Precursor. Int J Mol Sci 2022; 23:ijms232012427. [PMID: 36293286 PMCID: PMC9604360 DOI: 10.3390/ijms232012427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/28/2022] [Accepted: 10/13/2022] [Indexed: 11/29/2022] Open
Abstract
The tyrosine kinase receptor encoded by the MET oncogene has been extensively studied. Surprisingly, one extracellular domain, PSI, evolutionary conserved between plexins, semaphorins, and integrins, has no established function. The MET PSI sequence contains two CXXC motifs, usually found in protein disulfide isomerases (PDI). Using a scrambled oxidized RNAse enzymatic activity assay in vitro, we show, for the first time, that the MET extracellular domain displays disulfide isomerase activity, abolished by PSI domain antibodies. PSI domain deletion or mutations of CXXC sites to AXXA or SXXS result in a significant impairment of the cleavage of the MET 175 kDa precursor protein, abolishing the maturation of α and β chains, of, respectively, 50 kDa and 145 kDa, disulfide-linked. The uncleaved precursor is stuck in the Golgi apparatus and, interestingly, is constitutively phosphorylated. However, no signal transduction is observed as measured by AKT and MAPK phosphorylation. Consequently, biological responses to the MET ligand—hepatocyte growth factor (HGF)—such as growth and epithelial to mesenchymal transition, are hampered. These data show that the MET PSI domain is functional and is required for the maturation, surface expression, and biological functions of the MET oncogenic protein.
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Affiliation(s)
- Dogus Murat Altintas
- IFOM, FIRC Institute for Molecular Oncology, Via Adamello 16, 20139 Milano, Italy
- Correspondence: (D.M.A.); (P.M.C.)
| | - Simona Gallo
- Department of Oncology, University of Turin, 10060 Candiolo, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Strada Provinciale 142, 10060 Candiolo, Italy
| | | | - Marina Cerqua
- IFOM, FIRC Institute for Molecular Oncology, Via Adamello 16, 20139 Milano, Italy
| | - Alessio Bocedi
- Department of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Annapia Vitacolonna
- Department of Oncology, University of Turin, 10060 Candiolo, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Strada Provinciale 142, 10060 Candiolo, Italy
| | - Orsola Botti
- IFOM, FIRC Institute for Molecular Oncology, Via Adamello 16, 20139 Milano, Italy
| | - Elena Casanova
- Candiolo Cancer Institute, FPO-IRCCS, Strada Provinciale 142, 10060 Candiolo, Italy
| | - Ilaria Rancati
- IFOM, FIRC Institute for Molecular Oncology, Via Adamello 16, 20139 Milano, Italy
| | - Chiara Milanese
- IFOM, FIRC Institute for Molecular Oncology, Via Adamello 16, 20139 Milano, Italy
| | - Sara Notari
- Department of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Giorgia Gambardella
- Department of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Giorgio Ricci
- Department of Chemical Sciences and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Pier Giorgio Mastroberardino
- IFOM, FIRC Institute for Molecular Oncology, Via Adamello 16, 20139 Milano, Italy
- Department of Life, Health, and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Carla Boccaccio
- Department of Oncology, University of Turin, 10060 Candiolo, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Strada Provinciale 142, 10060 Candiolo, Italy
| | - Tiziana Crepaldi
- Department of Oncology, University of Turin, 10060 Candiolo, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Strada Provinciale 142, 10060 Candiolo, Italy
| | - Paolo Maria Comoglio
- IFOM, FIRC Institute for Molecular Oncology, Via Adamello 16, 20139 Milano, Italy
- Correspondence: (D.M.A.); (P.M.C.)
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2
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Voskamp C, Anderson LA, Koevoet WJ, Barnhoorn S, Mastroberardino PG, van Osch GJ, Narcisi R. TWIST1 controls cellular senescence and energy metabolism in mesenchymal stem cells. Eur Cell Mater 2021; 42:401-414. [PMID: 34825700 DOI: 10.22203/ecm.v042a25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are promising cells for regenerative medicine therapies because they can differentiate towards multiple cell lineages. However, the occurrence of cellular senescence and the acquiring of the senescence-associated secretory phenotype (SASP) limit their clinical use. Since the transcription factor TWIST1 influences expansion of MSCs, its role in regulating cellular senescence was investigated. The present study demonstrated that silencing of TWIST1 in MSCs increased the occurrence of senescence, characterised by a SASP profile different from irradiation-induced senescent MSCs. Knowing that senescence alters cellular metabolism, cellular bioenergetics was monitored by using the Seahorse XF apparatus. Both TWIST1-silencing-induced and irradiation-induced senescent MSCs had a higher oxygen consumption rate compared to control MSCs, while TWIST1-silencing-induced senescent MSCs had a low extracellular acidification rate compared to irradiation-induced senescent MSCs. Overall, data indicated how TWIST1 regulation influenced senescence in MSCs and that TWIST1 silencing-induced senescence was characterised by a specific SASP profile and metabolic state.
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Affiliation(s)
| | | | | | | | | | | | - R Narcisi
- Department of Orthopaedics and Sports Medicine, Erasmus MC, 3015 CN Rotterdam, the
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3
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D'Errico M, Parlanti E, Pascucci B, Filomeni G, Mastroberardino PG, Dogliotti E. The interplay between mitochondrial functionality and genome integrity in the prevention of human neurologic diseases. Arch Biochem Biophys 2021; 710:108977. [PMID: 34174223 DOI: 10.1016/j.abb.2021.108977] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 12/23/2022]
Abstract
As mitochondria are vulnerable to oxidative damage and represent the main source of reactive oxygen species (ROS), they are considered key tuners of ROS metabolism and buffering, whose dysfunction can progressively impact neuronal networks and disease. Defects in DNA repair and DNA damage response (DDR) may also affect neuronal health and lead to neuropathology. A number of congenital DNA repair and DDR defective syndromes, indeed, show neurological phenotypes, and a growing body of evidence indicate that defects in the mechanisms that control genome stability in neurons acts as aging-related modifiers of common neurodegenerative diseases such as Alzheimer, Parkinson's, Huntington diseases and Amyotrophic Lateral Sclerosis. In this review we elaborate on the established principles and recent concepts supporting the hypothesis that deficiencies in either DNA repair or DDR might contribute to neurodegeneration via mechanisms involving mitochondrial dysfunction/deranged metabolism.
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Affiliation(s)
| | - Eleonora Parlanti
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Barbara Pascucci
- Institute of Crystallography, Consiglio Nazionale Delle Ricerche, Rome, Italy
| | - Giuseppe Filomeni
- Redox Biology, Danish Cancer Society Research Center, Copenhagen, Denmark; Center for Healthy Aging, Copenhagen University, Copenhagen, Denmark; Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Pier Giorgio Mastroberardino
- Department of Molecular Genetics, Erasmus MC, Rotterdam, the Netherlands; IFOM- FIRC Institute of Molecular Oncology, Milan, Italy; Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Eugenia Dogliotti
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy.
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4
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Cervellati C, Sticozzi C, Romani A, Belmonte G, De Rasmo D, Signorile A, Cervellati F, Milanese C, Mastroberardino PG, Pecorelli A, Savelli V, Forman HJ, Hayek J, Valacchi G. Impaired enzymatic defensive activity, mitochondrial dysfunction and proteasome activation are involved in RTT cell oxidative damage. Biochim Biophys Acta Mol Basis Dis 2015; 1852:2066-74. [DOI: 10.1016/j.bbadis.2015.07.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 07/07/2015] [Accepted: 07/15/2015] [Indexed: 12/16/2022]
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Abstract
Parkinson׳s disease (PD) is a complex disease and the current interest and focus of scientific research is both investigating the variety of causes that underlie PD pathogenesis, and identifying reliable biomarkers to diagnose and monitor the progression of pathology. Investigation on pathogenic mechanisms in peripheral cells, such as fibroblasts derived from patients with sporadic PD and age/gender matched controls, might generate deeper understanding of the deficits affecting dopaminergic neurons and, possibly, new tools applicable to clinical practice. The chronic and slow progressing nature of PD may result from subtle yet persistent alterations in biological mechanisms, which might be undetectable in basal, unchallenged conditions. Unlike body fluids, dermal fibroblasts can be exposed to different challenges while in culture and can therefore generate information about the dynamic cellular responses to exogenous stressors. These studies may ultimately generate indicators highlighting the biological defects intrinsic to PD. In fact, fibroblasts from idiopathic PD patients' exhibit deficits typically sustaining the neurodegenerative process of PD, such as increased susceptibility to rotenone as well as deficits in protein homeostasis and mitochondrial bioenergetics Fibroblasts therefore represent a powerful and minimally invasive tool to investigate PD pathogenic mechanisms, which might translate into considerable advances in clinical management of the disease.
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Affiliation(s)
| | - Giulia Ambrosi
- National Neurological Institute C. Mondino (Center for Research in Neurodegenerative Diseases), Laboratory of Functional Neurochemistry, Italy
| | - Fabio Blandini
- National Neurological Institute C. Mondino (Center for Research in Neurodegenerative Diseases), Laboratory of Functional Neurochemistry, Italy
| | - Chiara Milanese
- Erasmus University Medical Center (Erasmus MC), Genetics, the Netherlands
| | - Sara Sepe
- Erasmus University Medical Center (Erasmus MC), Genetics, the Netherlands
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Altuntas S, D'Eletto M, Rossin F, Hidalgo LD, Farrace MG, Falasca L, Piredda L, Cocco S, Mastroberardino PG, Piacentini M, Campanella M. Type 2 Transglutaminase, mitochondria and Huntington's disease: menage a trois. Mitochondrion 2014; 19 Pt A:97-104. [PMID: 25262960 DOI: 10.1016/j.mito.2014.09.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 09/16/2014] [Accepted: 09/18/2014] [Indexed: 01/07/2023]
Abstract
Mitochondria produce the bulk of cellular energy and work as decisional "hubs" for cellular responses by integrating different input signals. The determinant in the physiopathology of mammals, they attract major attention, nowadays, for their contribution to brain degeneration. How they can withstand or succumb to insults leading to neuronal death is an object of great attention increasing the need for a better understanding of the interplay between inner and outer mitochondrial pathways residing in the cytosol. Of the latter, those dictating protein metabolism and therefore influencing the quality function and control of the organelle are of our most immediate interest and here we describe the Transglutaminase type 2 (TG2) contribution to mitochondrial function, dysfunction and neurodegeneration. Besides reviewing the latest evidences we share also the novel ones on the IF1 pathway depicting a molecular conduit governing mitochondrial turnover and homeostasis relevant to envisaging preventive and therapeutic strategies to respectively predict and counteract deficiencies associated with deregulated mitochondrial function in neuropathology.
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Affiliation(s)
- Sara Altuntas
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Federica Rossin
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Laura Diaz Hidalgo
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | | | - Laura Falasca
- National Institute for Infectious Diseases I.R.C.C.S. 'L. Spallanzani', Rome 00149, Italy
| | - Lucia Piredda
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Stefania Cocco
- European Brain Research Institute (EBRI), Rita Levi-Montalcini Foundation, Rome 00143, Italy
| | | | - Mauro Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy; National Institute for Infectious Diseases I.R.C.C.S. 'L. Spallanzani', Rome 00149, Italy.
| | - Michelangelo Campanella
- Department of Biology, University of Rome 'Tor Vergata', Rome 00133, Italy; European Brain Research Institute (EBRI), Rita Levi-Montalcini Foundation, Rome 00143, Italy; Department of Comparative Biomedical Sciences, Royal Veterinary College, University of London, UCL Consortium for Mitochondrial Research (CfMR), London, NW1 0TU, UK.
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7
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Ambrosi G, Ghezzi C, Sepe S, Milanese C, Payan-Gomez C, Bombardieri CR, Armentero MT, Zangaglia R, Pacchetti C, Mastroberardino PG, Blandini F. Bioenergetic and proteolytic defects in fibroblasts from patients with sporadic Parkinson's disease. Biochim Biophys Acta Mol Basis Dis 2014; 1842:1385-94. [PMID: 24854107 DOI: 10.1016/j.bbadis.2014.05.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 05/05/2014] [Accepted: 05/07/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND Parkinson's disease (PD) is a complex disease and the current interest and focus of scientific research is both investigating the variety of causes that underlie PD pathogenesis, and identifying reliable biomarkers to diagnose and monitor the progression of pathology. Investigation on pathogenic mechanisms in peripheral cells, such as fibroblasts derived from patients with sporadic PD and age/gender matched controls, might generate deeper understanding of the deficits affecting dopaminergic neurons and, possibly, new tools applicable to clinical practice. METHODS Primary fibroblast cultures were established from skin biopsies. Increased susceptibility to the PD-related toxin rotenone was determined with apoptosis- and necrosis-specific cell death assays. Protein quality control was evaluated assessing the efficiency of the Ubiquitin Proteasome System (UPS) and protein levels of autophagic markers. Changes in cellular bioenergetics were monitored by measuring oxygen consumption and glycolysis-dependent medium acidification. The oxido-reductive status was determined by detecting mitochondrial superoxide production and oxidation levels in proteins and lipids. RESULTS PD fibroblasts showed higher vulnerability to necrotic cell death induced by complex I inhibitor rotenone, reduced UPS function and decreased maximal and rotenone-sensitive mitochondrial respiration. No changes in autophagy and redox markers were detected. CONCLUSIONS Our study shows that increased susceptibility to rotenone and the presence of proteolytic and bioenergetic deficits that typically sustain the neurodegenerative process of PD can be detected in fibroblasts from idiopathic PD patients. Fibroblasts might therefore represent a powerful and minimally invasive tool to investigate PD pathogenic mechanisms, which might translate into considerable advances in clinical management of the disease.
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Affiliation(s)
- Giulia Ambrosi
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, National Neurological Institute C. Mondino, Via Mondino 2, 27100 Pavia, Italy; Department of Brain and Behavioral Sciences, University of Pavia, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - Cristina Ghezzi
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, National Neurological Institute C. Mondino, Via Mondino 2, 27100 Pavia, Italy
| | - Sara Sepe
- Department of Genetics, Erasmus Medical Centre, Dr. Molewaterplein 50, 3015GE Rotterdam, The Netherlands
| | - Chiara Milanese
- Department of Genetics, Erasmus Medical Centre, Dr. Molewaterplein 50, 3015GE Rotterdam, The Netherlands; RiMED Foundation, Palermo, Italy
| | - Cesar Payan-Gomez
- Department of Genetics, Erasmus Medical Centre, Dr. Molewaterplein 50, 3015GE Rotterdam, The Netherlands; Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá, Colombia
| | - Cintia R Bombardieri
- Department of Genetics, Erasmus Medical Centre, Dr. Molewaterplein 50, 3015GE Rotterdam, The Netherlands
| | - Marie-Therese Armentero
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, National Neurological Institute C. Mondino, Via Mondino 2, 27100 Pavia, Italy
| | - Roberta Zangaglia
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, National Neurological Institute C. Mondino, Via Mondino 2, 27100 Pavia, Italy
| | - Claudio Pacchetti
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, National Neurological Institute C. Mondino, Via Mondino 2, 27100 Pavia, Italy
| | | | - Fabio Blandini
- Laboratory of Functional Neurochemistry, Center for Research in Neurodegenerative Diseases, National Neurological Institute C. Mondino, Via Mondino 2, 27100 Pavia, Italy.
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8
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Uittenboogaard LM, Payan-Gomez C, Pothof J, van Ijcken W, Mastroberardino PG, van der Pluijm I, Hoeijmakers JHJ, Tresini M. BACH2: a marker of DNA damage and ageing. DNA Repair (Amst) 2013; 12:982-92. [PMID: 24075570 DOI: 10.1016/j.dnarep.2013.08.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 08/08/2013] [Accepted: 08/20/2013] [Indexed: 11/25/2022]
Abstract
DNA damage and ageing share expression changes involving alterations in many aspects of metabolism, suppression of growth and upregulation of defence and genome maintenance systems. "Omics" technologies have permitted large-scale parallel measurements covering global cellular constituents and aided the identification of specific response pathways that change during ageing and after DNA damage. We have set out to identify genes with highly conserved response patterns through meta-analysis of mRNA expression datasets collected during natural ageing and accelerated ageing caused by a Transcription-Coupled Nucleotide Excision Repair (TC-NER) defect in a diverse set of organs and tissues in mice, and from in vitro UV-induced DNA damage in a variety of murine cells. The identified set of genes that show similar expression patterns in response to organ ageing (accelerated and normal), and endogenously and exogenously induced DNA damage, consists of genes involved in anti-oxidant systems and includes the transcription factor Bach2 as one of the most consistent markers. BACH2 was originally identified as a partner of the small Maf proteins and antagonist of the NRF2 anti-oxidant defence pathway and has been implicated in B-cell differentiation and immune system homeostasis. Although BACH2 has never before been associated with UV-induced damage or ageing, it shows a strong downregulation in both conditions. We have characterized the dynamics of Bach2 expression in response to DNA damage and show that it is a highly sensitive responder to transcription-blocking DNA lesions. Gene expression profiling using Affymetrix microarray analysis after siRNA-mediated silencing of Bach2 identified cell cycle and transcription regulation as the most significantly altered processes consistent with a function as transcription factor affecting proliferation.
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Affiliation(s)
- L M Uittenboogaard
- MGC Department of Cell Biology and Genetics, Center for Biomedical Genetics, Erasmus Medical Center, PO Box 1738, 3000 DR, Rotterdam, The Netherlands
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9
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Abstract
Huntington's disease (HD) is a dominant genetic neurodegenerative disorder. The pathology affects principally neurons in the basal ganglia circuits and terminates invariably in death. There is compelling necessity for safe and effective therapeutic strategies to arrest, or even retard the progression of the pathogenesis. Recent findings indicate the autophagy-lysosome systems as appealing targets for pharmacological intervention. Autophagy exerts a critical role in controlling neuronal protein homeostasis, which is perturbed in HD, and is compromised in the pathogenesis of several neurodegenerative diseases. Type 2 transglutaminase (TG2) plays an important role both in apoptosis and autophagy regulation, and accumulates at high levels in cells under stressful conditions. TG2 inhibition, achieved either via drug treatments or genetic approaches, has been shown to be beneficial for the treatment of HD in animal models. In this review we will discuss the relevance of TG2 to the pathogenesis of HD, in an effort to define novel therapeutic avenues.
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10
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Mastroberardino PG, Hoffman EK, Horowitz MP, Betarbet R, Taylor G, Cheng D, Na HM, Gutekunst CA, Gearing M, Trojanowski JQ, Anderson M, Chu CT, Peng J, Greenamyre JT. A novel transferrin/TfR2-mediated mitochondrial iron transport system is disrupted in Parkinson's disease. Neurobiol Dis 2009; 34:417-31. [PMID: 19250966 DOI: 10.1016/j.nbd.2009.02.009] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2008] [Revised: 01/30/2009] [Accepted: 02/05/2009] [Indexed: 12/21/2022] Open
Abstract
More than 80 years after iron accumulation was initially described in the substantia nigra (SN) of Parkinson's disease (PD) patients, the mechanisms responsible for this phenomenon are still unknown. Similarly, how iron is delivered to its major recipients in the cell - mitochondria and the respiratory complexes - has yet to be elucidated. Here, we report a novel transferrin/transferrin receptor 2 (Tf/TfR2)-mediated iron transport pathway in mitochondria of SN dopamine neurons. We found that TfR2 has a previously uncharacterized mitochondrial targeting sequence that is sufficient to import the protein into these organelles. Importantly, the Tf/TfR2 pathway can deliver Tf bound iron to mitochondria and to the respiratory complex I as well. The pathway is redox-sensitive and oxidation of Tf thiols to disulfides induces release from Tf of highly reactive ferrous iron, which contributes to free radical production. In the rotenone model of PD, Tf accumulates in dopamine neurons, with much of it accumulating in the mitochondria. This is associated with iron deposition in SN, similar to what occurs in PD. In the human SN, TfR2 is also found in mitochondria of dopamine neurons, and in PD there is a dramatic increase of oxidized Tf in SN. Thus, we have discovered a novel mitochondrial iron transport system that goes awry in PD, and which may provide a new target for therapeutic intervention.
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11
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Battaglia G, Farrace MG, Mastroberardino PG, Viti I, Fimia GM, Van Beeumen J, Devreese B, Melino G, Molinaro G, Busceti CL, Biagioni F, Nicoletti F, Piacentini M. Transglutaminase 2 ablation leads to defective function of mitochondrial respiratory complex I affecting neuronal vulnerability in experimental models of extrapyramidal disorders. J Neurochem 2006; 100:36-49. [PMID: 17064362 DOI: 10.1111/j.1471-4159.2006.04140.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Transglutaminase 2 (TG2) represents the most ubiquitous isoform belonging to the TG family, and has been implicated in the pathophysiology of basal ganglia disorders, such as Parkinson's disease and Huntington's disease. We show that ablation of TG2 in knockout mice causes a reduced activity of mitochondrial complex I associated with an increased activity of complex II in the whole forebrain and striatum. Interestingly, TG2-/- mice were protected against nigrostriatal damage induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine, which is converted in vivo into the mitochondrial complex I inhibitor, 1-methyl-4-phenyl-pyridinium ion. In contrast, TG2-/- mice were more vulnerable to nigrostriatal damage induced by methamphetamine or by the complex II inhibitor, 3-nitropropionic acid. Proteomic analysis showed that proteins involved in the mitochondrial respiratory chain, such as prohibitin and the beta-chain of ATP synthase, are substrates for TG2. These data suggest that TG2 is involved in the regulation of the respiratory chain both in physiology and pathology, contributing to set the threshold for neuronal damage in extrapyramidal disorders.
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MESH Headings
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/metabolism
- 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine/pharmacology
- Adenosine Triphosphate/metabolism
- Animals
- Basal Ganglia Diseases/genetics
- Basal Ganglia Diseases/physiopathology
- Biogenic Monoamines/metabolism
- Blotting, Western/methods
- Body Weight/drug effects
- Corpus Striatum/drug effects
- Disease Models, Animal
- Dopamine Plasma Membrane Transport Proteins/metabolism
- Dose-Response Relationship, Drug
- Electron Transport Complex I/metabolism
- Electron Transport Complex II/metabolism
- GTP-Binding Proteins/deficiency
- Glial Fibrillary Acidic Protein/metabolism
- Immunohistochemistry/methods
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria/drug effects
- Mitochondria/metabolism
- Mitochondrial Diseases/etiology
- Mitochondrial Diseases/pathology
- Neurons/pathology
- Piperazines/pharmacokinetics
- Protein Glutamine gamma Glutamyltransferase 2
- Time Factors
- Transglutaminases/deficiency
- Tyrosine 3-Monooxygenase/metabolism
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12
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Mastroberardino PG, Farrace MG, Viti I, Pavone F, Fimia GM, Melino G, Rodolfo C, Piacentini M. "Tissue" transglutaminase contributes to the formation of disulphide bridges in proteins of mitochondrial respiratory complexes. Biochim Biophys Acta 2006; 1757:1357-65. [PMID: 16979579 DOI: 10.1016/j.bbabio.2006.07.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2006] [Revised: 07/13/2006] [Accepted: 07/31/2006] [Indexed: 01/05/2023]
Abstract
In this study we provide the first in vivo evidences showing that, under physiological conditions, "tissue" transglutaminase (TG2) might acts as a protein disulphide isomerase (PDI) and through this activity contributes to the correct assembly of the respiratory chain complexes. Mice lacking TG2 exhibit mitochondrial energy production impairment, evidenced by decreased ATP levels after physical challenge. This defect is phenotypically reflected in a dramatic decrease of motor behaviour of the animals. We propose that the molecular mechanism, underlying such a phenotype, resides in a defective disulphide bonds formation in ATP synthase (complex V), NADH-ubiquinone oxidoreductase (complex I), succinate-ubiquinone oxidoreductase (complex II) and cytochrome c oxidase (complex IV). In addition, TG2-PDI might control the respiratory chain by modulating the formation of the prohibitin complexes. These data elucidate a new pathway that directly links the TG2-PDI enzymatic activity with the regulation of mitochondrial respiratory chain function.
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13
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Szondy Z, Mastroberardino PG, Váradi J, Farrace MG, Nagy N, Bak I, Viti I, Wieckowski MR, Melino G, Rizzuto R, Tósaki A, Fesus L, Piacentini M. Tissue transglutaminase (TG2) protects cardiomyocytes against ischemia/reperfusion injury by regulating ATP synthesis. Cell Death Differ 2006; 13:1827-9. [PMID: 16528383 DOI: 10.1038/sj.cdd.4401889] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
MESH Headings
- Adenosine Triphosphate/biosynthesis
- Animals
- GTP-Binding Proteins/deficiency
- GTP-Binding Proteins/genetics
- GTP-Binding Proteins/metabolism
- In Vitro Techniques
- Male
- Membrane Potentials
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria, Heart/metabolism
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/cytology
- Myocytes, Cardiac/metabolism
- Protein Glutamine gamma Glutamyltransferase 2
- Receptors, Adrenergic, alpha-1/deficiency
- Receptors, Adrenergic, alpha-1/genetics
- Receptors, Adrenergic, alpha-1/metabolism
- Signal Transduction
- Transglutaminases/deficiency
- Transglutaminases/genetics
- Transglutaminases/metabolism
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Piacentini M, Amendola A, Ciccosanti F, Falasca L, Farrace MG, Mastroberardino PG, Nardacci R, Oliverio S, Piredda L, Rodolfo C, Autuori F. Type 2 transglutaminase and cell death. Prog Exp Tumor Res 2005; 38:58-74. [PMID: 15746529 DOI: 10.1159/000084233] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Affiliation(s)
- Mauro Piacentini
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, IT-00133 Rome, Italy.
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15
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Vahsen N, Candé C, Brière JJ, Bénit P, Joza N, Larochette N, Mastroberardino PG, Pequignot MO, Casares N, Lazar V, Feraud O, Debili N, Wissing S, Engelhardt S, Madeo F, Piacentini M, Penninger JM, Schägger H, Rustin P, Kroemer G. AIF deficiency compromises oxidative phosphorylation. EMBO J 2004; 23:4679-89. [PMID: 15526035 PMCID: PMC533047 DOI: 10.1038/sj.emboj.7600461] [Citation(s) in RCA: 475] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2004] [Accepted: 10/05/2004] [Indexed: 12/20/2022] Open
Abstract
Apoptosis-inducing factor (AIF) is a mitochondrial flavoprotein that, after apoptosis induction, translocates to the nucleus where it participates in apoptotic chromatinolysis. Here, we show that human or mouse cells lacking AIF as a result of homologous recombination or small interfering RNA exhibit high lactate production and enhanced dependency on glycolytic ATP generation, due to severe reduction of respiratory chain complex I activity. Although AIF itself is not a part of complex I, AIF-deficient cells exhibit a reduced content of complex I and of its components, pointing to a role of AIF in the biogenesis and/or maintenance of this polyprotein complex. Harlequin mice with reduced AIF expression due to a retroviral insertion into the AIF gene also manifest a reduced oxidative phosphorylation (OXPHOS) in the retina and in the brain, correlating with reduced expression of complex I subunits, retinal degeneration, and neuronal defects. Altogether, these data point to a role of AIF in OXPHOS and emphasize the dual role of AIF in life and death.
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Affiliation(s)
- Nicola Vahsen
- CNRS-UMR8125, Institut Gustave Roussy, Villejuif, France
| | - Céline Candé
- CNRS-UMR8125, Institut Gustave Roussy, Villejuif, France
| | | | - Paule Bénit
- INSERM U393, Service de Génétique, Hôpital Necker-Enfants Malades, France
| | - Nicholas Joza
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | | | | | | | - Noelia Casares
- CNRS-UMR8125, Institut Gustave Roussy, Villejuif, France
| | - Vladimir Lazar
- Unité de Génomique Fonctionelle, Institut Gustave Roussy, Villejuif, France
| | | | - Najet Debili
- INSERM U362, Institut Gustave Roussy, Villejuif, France
| | - Silke Wissing
- Physiologisch-chemisches Institut, Tübingen, Germany
| | | | - Frank Madeo
- Physiologisch-chemisches Institut, Tübingen, Germany
| | - Mauro Piacentini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Josef M Penninger
- IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria
| | - Hermann Schägger
- Institut für Biochemie I, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
- These authors share senior co-authorship
| | - Pierre Rustin
- INSERM U393, Service de Génétique, Hôpital Necker-Enfants Malades, France
- These authors share senior co-authorship
| | - Guido Kroemer
- CNRS-UMR8125, Institut Gustave Roussy, Villejuif, France
- These authors share senior co-authorship
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16
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Piacentini M, Evangelisti C, Mastroberardino PG, Nardacci R, Kroemer G. Does prothymosin-alpha act as molecular switch between apoptosis and autophagy? Cell Death Differ 2003; 10:937-9. [PMID: 12934067 DOI: 10.1038/sj.cdd.4401282] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- M Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Via della Ricerca Scientifica, 00173 Rome, Italy.
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17
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Szondy Z, Sarang Z, Molnar P, Nemeth T, Piacentini M, Mastroberardino PG, Falasca L, Aeschlimann D, Kovacs J, Kiss I, Szegezdi E, Lakos G, Rajnavolgyi E, Birckbichler PJ, Melino G, Fesus L. Transglutaminase 2-/- mice reveal a phagocytosis-associated crosstalk between macrophages and apoptotic cells. Proc Natl Acad Sci U S A 2003; 100:7812-7. [PMID: 12810961 PMCID: PMC164670 DOI: 10.1073/pnas.0832466100] [Citation(s) in RCA: 202] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2002] [Indexed: 11/18/2022] Open
Abstract
Tissue transglutaminase (TGase2) is a protein-crosslinking enzyme known to be associated with the in vivo apoptosis program. Here we report that apoptosis could be induced in TGase2-/- mice; however, the clearance of apoptotic cells was defective during the involution of thymus elicited by dexamethasone, anti-CD3 antibody, or gamma-irradiation, and in the liver after induced hyperplasia. The lack of TGase2 prevented the production of active transforming growth factor-beta1 in macrophages exposed to apoptotic cells, which is required for the up-regulation of TGase2 in the thymus in vivo, for accelerating deletion of CD4+CD8+ cells and for efficient phagocytosis of apoptotic bodies. The deficiency is associated with the development of splenomegaly, autoantibodies, and immune complex glomerulonephritis in TGase2-/- mice. These findings have broad implications not only for diseases linked to inflammation and autoimmunity but also for understanding the interrelationship between the apoptosis and phagocytosis process.
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Affiliation(s)
- Zsuzsa Szondy
- Department of Biochemistry and Molecular Biology, Research Center for Molecular Medicine, Institute of Immunology, University of Debrecen, Debrecen H-4012, Hungary.
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18
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Mastroberardino PG, Iannicola C, Nardacci R, Bernassola F, De Laurenzi V, Melino G, Moreno S, Pavone F, Oliverio S, Fesus L, Piacentini M. 'Tissue' transglutaminase ablation reduces neuronal death and prolongs survival in a mouse model of Huntington's disease. Cell Death Differ 2002; 9:873-80. [PMID: 12181738 DOI: 10.1038/sj.cdd.4401093] [Citation(s) in RCA: 165] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2002] [Revised: 06/04/2002] [Accepted: 06/07/2002] [Indexed: 11/08/2022] Open
Abstract
By crossing Huntington's disease (HD) R6/1 transgenic mice with 'tissue' transglutaminase (TG2) knock-out mice, we have demonstrated that this multifunctional enzyme plays an important role in the neuronal death characterising this disorder in vivo. In fact, a large reduction in cell death is observed in R6/1, TG2(-/-) compared with R6/1 transgenic mice. In addition, we have shown that the formation of neuronal intranuclear inclusions (NII) is potentiated in absence of the 'tissue' transglutaminase. These phenomena are paralleled by a significant improvement both in motor performances and survival of R6/1, TG2(-/-) versus R6/1 mice. Taken together these findings suggest an important role for tissue transglutaminase in the regulation of neuronal cell death occurring in Huntington's disease.
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