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Lamontagne F, Paz-Trejo C, Zamorano Cuervo N, Grandvaux N. Redox signaling in cell fate: Beyond damage. Biochim Biophys Acta Mol Cell Res 2024; 1871:119722. [PMID: 38615720 DOI: 10.1016/j.bbamcr.2024.119722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/20/2024] [Accepted: 04/02/2024] [Indexed: 04/16/2024]
Abstract
This review explores the nuanced role of reactive oxygen species (ROS) in cell fate, challenging the traditional view that equates ROS with cellular damage. Through significant technological advancements in detecting localized redox states and identifying oxidized cysteines, a paradigm shift has emerged: from ROS as merely damaging agents to crucial players in redox signaling. We delve into the intricacies of redox mechanisms, which, although confined, exert profound influences on cellular physiological responses. Our analysis extends to both the positive and negative impacts of these mechanisms on cell death processes, including uncontrolled and programmed pathways. By unraveling these complex interactions, we argue against the oversimplified notion of a 'stress response', advocating for a more nuanced understanding of redox signaling. This review underscores the importance of localized redox states in determining cell fate, highlighting the sophistication and subtlety of ROS functions beyond mere damage.
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Affiliation(s)
- Felix Lamontagne
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada
| | - Cynthia Paz-Trejo
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal H3C 3J7, Québec, Canada
| | - Natalia Zamorano Cuervo
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada
| | - Nathalie Grandvaux
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal H2X 0A9, Québec, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal H3C 3J7, Québec, Canada.
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Kasumba DM, Huot S, Caron E, Fortin A, Laflamme C, Zamorano Cuervo N, Lamontagne F, Pouliot M, Grandvaux N. DUOX2 regulates secreted factors in virus-infected respiratory epithelial cells that contribute to neutrophil attraction and activation. FASEB J 2023; 37:e22765. [PMID: 36607642 PMCID: PMC10107641 DOI: 10.1096/fj.202201205r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/29/2022] [Revised: 12/10/2022] [Accepted: 12/27/2022] [Indexed: 01/07/2023]
Abstract
The first line of defense against respiratory viruses relies on the antiviral and proinflammatory cytokine response initiated in infected respiratory epithelial cells. The cytokine response not only restricts virus replication and spreading, but also orchestrates the subsequent immune response. The epithelial Dual Oxidase 2 (DUOX2) has recently emerged as a regulator of the interferon antiviral response. Here, we investigated the role of DUOX2 in the inflammatory cytokine response using a model of A549 cells deficient in DUOX2 generated using Crispr-Cas9 and infected by Sendai virus. We found that the absence of DUOX2 selectively reduced the induction of a restricted panel of 14 cytokines and chemokines secreted in response to Sendai virus by 20 to 89%. The secreted factors produced by epithelial cells upon virus infection promoted the migration, adhesion, and degranulation of primary human neutrophils, in part through the DUOX2-dependent secretion of TNF and chemokines. In contrast, DUOX2 expression did not impact neutrophil viability or NETosis, thereby highlighting a selective impact of DUOX2 in neutrophil functions. Overall, this study unveils previously unrecognized roles of epithelial DUOX2 in the epithelial-immune cells crosstalk during respiratory virus infection.
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Affiliation(s)
- Dacquin M Kasumba
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Sandrine Huot
- Département de Microbiologie-Infectiologie et Immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, Québec, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec - Université Laval, Québec City, Québec, Canada
| | - Elise Caron
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Audray Fortin
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Cynthia Laflamme
- Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec - Université Laval, Québec City, Québec, Canada
| | - Natalia Zamorano Cuervo
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Felix Lamontagne
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Marc Pouliot
- Département de Microbiologie-Infectiologie et Immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, Québec, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec - Université Laval, Québec City, Québec, Canada
| | - Nathalie Grandvaux
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
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3
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Cuervo NZ, Grandvaux N. Redox proteomics and structural analyses provide insightful implications for additional non-catalytic thiol-disulfide motifs in PDIs. Redox Biol 2022; 59:102583. [PMID: 36567215 PMCID: PMC9868663 DOI: 10.1016/j.redox.2022.102583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/12/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Protein disulfide isomerases (PDIs) catalyze redox reactions that reduce, oxidize, or isomerize disulfide bonds and act as chaperones of proteins as they fold. The characteristic features of PDIs are the presence of one or more catalytic thioredoxin (TRX)-like domains harboring typical CXXC catalytic motifs responsible for redox reactions, as well as non-catalytic TRX-like domain. As increasing attention is paid to oxidative post-translational modifications of cysteines (Cys ox-PTMs) with the recognition that they control cellular signaling, strategies to identify sites of Cys ox-PTM by redox proteomics have been optimized. Exploration of an available Cys redoxome dataset supported by modeled structure provided arguments for the existence of an additional non-catalytic thiol-disulfide motif, distinct from those contained in the TRX type patterns, typical of PDIAs. Further structural analysis of PDIA3 and 6 allows us to consider the possibility that this hypothesis could be extended to other members of PDI. These elements invite future studies to decipher the exact role of these non-catalytic thiol-disulfide motifs in the functions of PDIs. Strategies that would allow to validate this hypothesis are discussed.
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Affiliation(s)
- Natalia Zamorano Cuervo
- CRCHUM – Centre de Recherche du Centre Hospitalier de l’Université de Montréal, 900 rue Saint Denis, Montréal, H2X 0A9, Québec, Canada
| | - Nathalie Grandvaux
- CRCHUM - Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, H2X 0A9, Québec, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, H3C 3J7, Québec, Canada.
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4
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Grandjean Lapierre S, Bedwani S, DeBlois F, Fortin A, Zamorano Cuervo N, Zerouali K, Caron E, Morency-Potvin P, Gagnon S, Nguissan N, Arlotto P, Hardy I, Boutin CA, Tremblay C, Coutlée F, de Guise J, Grandvaux N. Clinical Evaluation of In-House-Produced 3D-Printed Nasopharyngeal Swabs for COVID-19 Testing. Viruses 2021; 13:1752. [PMID: 34578334 PMCID: PMC8473445 DOI: 10.3390/v13091752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/18/2021] [Accepted: 08/30/2021] [Indexed: 01/03/2023] Open
Abstract
3D-printed alternatives to standard flocked swabs were rapidly developed to provide a response to the unprecedented and sudden need for an exponentially growing amount of diagnostic tools to fight the COVID-19 pandemic. In light of the anticipated shortage, a hospital-based 3D-printing platform was implemented in our institution for the production of swabs for nasopharyngeal and oropharyngeal sampling based on the freely available, open-source design provided to the community by University of South Florida's Health Radiology and Northwell Health System teams as a replacement for locally used commercial swabs. Validation of our 3D-printed swabs was performed with a head-to-head diagnostic accuracy study of the 3D-printed "Northwell model" with the cobas PCR Media® swab sample kit. We observed an excellent concordance (total agreement 96.8%, Kappa 0.936) in results obtained with the 3D-printed and flocked swabs, indicating that the in-house 3D-printed swab could be used reliably in the context of a shortage of flocked swabs. To our knowledge, this is the first study to report on autonomous hospital-based production and clinical validation of 3D-printed swabs.
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Affiliation(s)
- Simon Grandjean Lapierre
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
- Department of Microbiology, Infectious Diseases and Immunology, Université de Montréal, Montréal, QC H3C 3J7, Canada;
| | - Stéphane Bedwani
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - François DeBlois
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Audray Fortin
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Natalia Zamorano Cuervo
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Karim Zerouali
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Elise Caron
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Philippe Morency-Potvin
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
- Department of Microbiology, Infectious Diseases and Immunology, Université de Montréal, Montréal, QC H3C 3J7, Canada;
| | - Simon Gagnon
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Nakome Nguissan
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Pascale Arlotto
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
| | - Isabelle Hardy
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
- Department of Microbiology, Infectious Diseases and Immunology, Université de Montréal, Montréal, QC H3C 3J7, Canada;
| | - Catherine-Audrey Boutin
- Department of Microbiology, Infectious Diseases and Immunology, Université de Montréal, Montréal, QC H3C 3J7, Canada;
| | - Cécile Tremblay
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
- Department of Microbiology, Infectious Diseases and Immunology, Université de Montréal, Montréal, QC H3C 3J7, Canada;
| | - François Coutlée
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
- Department of Microbiology, Infectious Diseases and Immunology, Université de Montréal, Montréal, QC H3C 3J7, Canada;
| | - Jacques de Guise
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
- Department of System Engineering, École de Technologie Supérieure, Université du Québec, Montréal, QC H3C 1K3, Canada
| | - Nathalie Grandvaux
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), 900 rue Saint-Denis, Montréal, QC H2X 0A9, Canada; (S.G.L.); (S.B.); (F.D.); (A.F.); (N.Z.C.); (K.Z.); (E.C.); (P.M.-P.); (S.G.); (N.N.); (P.A.); (I.H.); (C.T.); (F.C.); (J.d.G.)
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
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5
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Zamorano Cuervo N, Fortin A, Caron E, Chartier S, Grandvaux N. Pinpointing cysteine oxidation sites by high-resolution proteomics reveals a mechanism of redox-dependent inhibition of human STING. Sci Signal 2021; 14:14/680/eaaw4673. [PMID: 33906974 DOI: 10.1126/scisignal.aaw4673] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Protein function is regulated by posttranslational modifications (PTMs), among which reversible oxidation of cysteine residues has emerged as a key regulatory mechanism of cellular responses. Given the redox regulation of virus-host interactions, the identification of oxidized cysteine sites in cells is essential to understand the underlying mechanisms involved. Here, we present a proteome-wide identification of reversibly oxidized cysteine sites in oxidant-treated cells using a maleimide-based bioswitch method coupled to mass spectrometry analysis. We identified 2720 unique oxidized cysteine sites within 1473 proteins with distinct abundances, locations, and functions. Oxidized cysteine sites were found in numerous signaling pathways, many relevant to virus-host interactions. We focused on the oxidation of STING, the central adaptor of the innate immune type I interferon pathway, which is stimulated in response to the detection of cytosolic DNA by cGAS. We demonstrated the reversible oxidation of Cys148 and Cys206 of STING in cells. Molecular analyses led us to establish a model in which Cys148 oxidation is constitutive, whereas Cys206 oxidation is inducible by oxidative stress or by the natural ligand of STING, 2'3'-cGAMP. Our data suggest that the oxidation of Cys206 prevented hyperactivation of STING by causing a conformational change associated with the formation of inactive polymers containing intermolecular disulfide bonds. This finding should aid the design of therapies targeting STING that are relevant to autoinflammatory disorders, immunotherapies, and vaccines.
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Affiliation(s)
- Natalia Zamorano Cuervo
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, H2X 0A9 Québec, Canada
| | - Audray Fortin
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, H2X 0A9 Québec, Canada
| | - Elise Caron
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, H2X 0A9 Québec, Canada
| | - Stéfany Chartier
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, H2X 0A9 Québec, Canada
| | - Nathalie Grandvaux
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, H2X 0A9 Québec, Canada. .,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, H3C 3J7 Québec, Canada
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6
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Abstract
Pandemic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus 19 disease (COVID-19) which presents a large spectrum of manifestations with fatal outcomes in vulnerable people over 70-years-old and with hypertension, diabetes, obesity, cardiovascular disease, COPD, and smoking status. Knowledge of the entry receptor is key to understand SARS-CoV-2 tropism, transmission and pathogenesis. Early evidence pointed to angiotensin-converting enzyme 2 (ACE2) as SARS-CoV-2 entry receptor. Here, we provide a critical summary of the current knowledge highlighting the limitations and remaining gaps that need to be addressed to fully characterize ACE2 function in SARS-CoV-2 infection and associated pathogenesis. We also discuss ACE2 expression and potential role in the context of comorbidities associated with poor COVID-19 outcomes. Finally, we discuss the potential co-receptors/attachment factors such as neuropilins, heparan sulfate and sialic acids and the putative alternative receptors, such as CD147 and GRP78.
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Affiliation(s)
| | - Nathalie Grandvaux
- CRCHUM - Centre Hospitalier de l’Université de MontréalQuébecCanada
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de MontréalQuébecCanada
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7
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Sen Nkwe N, Daou S, Uriarte M, Gagnon J, Iannantuono NV, Barbour H, Yu H, Masclef L, Fernández E, Zamorano Cuervo N, Mashtalir N, Binan L, Sergeev M, Bélanger F, Drobetsky E, Milot E, Wurtele H, Costantino S, Affar EB. A potent nuclear export mechanism imposes USP16 cytoplasmic localization during interphase. J Cell Sci 2020; 133:jcs239236. [PMID: 32005696 DOI: 10.1242/jcs.239236] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/13/2020] [Indexed: 01/09/2023] Open
Abstract
USP16 (also known as UBP-M) has emerged as a histone H2AK119 deubiquitylase (DUB) implicated in the regulation of chromatin-associated processes and cell cycle progression. Despite this, available evidence suggests that this DUB is also present in the cytoplasm. How the nucleo-cytoplasmic transport of USP16, and hence its function, is regulated has remained elusive. Here, we show that USP16 is predominantly cytoplasmic in all cell cycle phases. We identified the nuclear export signal (NES) responsible for maintaining USP16 in the cytoplasm. We found that USP16 is only transiently retained in the nucleus following mitosis and then rapidly exported from this compartment. We also defined a non-canonical nuclear localization signal (NLS) sequence that plays a minimal role in directing USP16 into the nucleus. We further established that this DUB does not accumulate in the nucleus following DNA damage. Instead, only enforced nuclear localization of USP16 abolishes DNA double-strand break (DSB) repair, possibly due to unrestrained DUB activity. Thus, in contrast to the prevailing view, our data indicate that USP16 is actively excluded from the nucleus and that this DUB might indirectly regulate DSB repair.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Nadine Sen Nkwe
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
| | - Salima Daou
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G 1X5, Canada
| | - Maxime Uriarte
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
| | - Jessica Gagnon
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Institute for Research in Immunology and Cancer, University of Montréal, Montréal, QC H3T 1J4, Canada
| | - Nicholas Victor Iannantuono
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Institute for Research in Immunology and Cancer, University of Montréal, Montréal, QC H3T 1J4, Canada
| | - Haithem Barbour
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
| | - Helen Yu
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Developmental and Stem Cell Biology Program and Arthur and Sonia Labatt Brain Tumor Research Centre, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Louis Masclef
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
| | - Erlinda Fernández
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
| | - Natalia Zamorano Cuervo
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, QC H2X 0A9, Canada
| | - Nazar Mashtalir
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA 02215, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Loïc Binan
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Department of Ophthalmology, University of Montréal, Montréal, Québec, Canada
| | - Mikhail Sergeev
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
| | - François Bélanger
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
| | - Elliot Drobetsky
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Department of Medicine, University of Montréal, Montréal H3C 3J7, Québec, Canada
| | - Eric Milot
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Department of Medicine, University of Montréal, Montréal H3C 3J7, Québec, Canada
| | - Hugo Wurtele
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Department of Medicine, University of Montréal, Montréal H3C 3J7, Québec, Canada
| | - Santiago Costantino
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Department of Ophthalmology, University of Montréal, Montréal, Québec, Canada
| | - El Bachir Affar
- Maisonneuve-Rosemont Hospital Research Center, Montréal, QC H1T 2M4, Canada
- Department of Medicine, University of Montréal, Montréal H3C 3J7, Québec, Canada
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Zamorano Cuervo N, Osseman Q, Grandvaux N. Virus Infection Triggers MAVS Polymers of Distinct Molecular Weight. Viruses 2018; 10:E56. [PMID: 29385716 PMCID: PMC5850363 DOI: 10.3390/v10020056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 01/24/2018] [Accepted: 01/26/2018] [Indexed: 12/14/2022] Open
Abstract
The mitochondrial antiviral signaling (MAVS) adaptor protein is a central signaling hub required for cells to mount an antiviral response following virus sensing by retinoic acid-inducible gene I (RIG-I)-like receptors. MAVS localizes in the membrane of mitochondria and peroxisomes and in mitochondrial-associated endoplasmic reticulum membranes. Structural and functional studies have revealed that MAVS activity relies on the formation of functional high molecular weight prion-like aggregates. The formation of protein aggregates typically relies on a dynamic transition between oligomerization and aggregation states. The existence of intermediate state(s) of MAVS polymers, other than aggregates, has not yet been documented. Here, we used a combination of non-reducing SDS-PAGE and semi-denaturing detergent agarose gel electrophoresis (SDD-AGE) to resolve whole cell extract preparations to distinguish MAVS polymerization states. While SDD-AGE analysis of whole cell extracts revealed the formation of previously described high molecular weight prion-like aggregates upon constitutively active RIG-I ectopic expression and virus infection, non-reducing SDS-PAGE allowed us to demonstrate the induction of lower molecular weight oligomers. Cleavage of MAVS using the NS3/4A protease revealed that anchoring to intracellular membranes is required for the appropriate polymerization into active high molecular weight aggregates. Altogether, our data suggest that RIG-I-dependent MAVS activation involves the coexistence of MAVS polymers with distinct molecular weights.
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Affiliation(s)
- Natalia Zamorano Cuervo
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, QC H2X 0A9, Canada.
| | - Quentin Osseman
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, QC H2X 0A9, Canada.
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Nathalie Grandvaux
- CRCHUM-Centre Hospitalier de l'Université de Montréal, 900 rue Saint Denis, Montréal, QC H2X 0A9, Canada.
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada.
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Williams V, Grosset AA, Zamorano Cuervo N, St-Pierre Y, Sylvestre MP, Gaboury L, Grandvaux N. Detection of IKKε by immunohistochemistry in primary breast cancer: association with EGFR expression and absence of lymph node metastasis. BMC Cancer 2017; 17:356. [PMID: 28532474 PMCID: PMC5441089 DOI: 10.1186/s12885-017-3321-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 05/03/2017] [Indexed: 01/04/2023] Open
Abstract
Background IKKε is an oncogenic kinase that was found amplified and overexpressed in a substantial percentage of human breast cancer cell lines and primary tumors using genomic and gene expression analyses. Molecular studies have provided the rational for a key implication of IKKε in breast cancer cells proliferation and invasiveness through the phosphorylation of several substrates. Methods Here, we performed immunohistochemical detection of IKKε expression on tissue microarrays constituted of 154 characterized human breast cancer tumors. We further determined the association with multiple clinicopathological parameters and 5-years overall, disease-free and distant disease free survival. Results We observed expression of IKKε in 60.4% of the breast cancer tumors. IKKε expression status showed no association with a panel of markers used for molecular classification of the tumors, including ER/PR/HER2 status, or with the molecular subtypes. However, IKKε expression was inversely associated with lymph node metastasis status (p = 0.0032). Additionally, we identified a novel association between IKKε and EGFR expression (p = 0.0011). Conclusions The unexpected observation of an inverse association between IKKε and lymph node metastasis advocates for larger scale immunohistochemical profiling of primary breast tumors to clarify the role of IKKε in metastasis. This study suggests that breast cancer tumors expressing EGFR and IKKε may be potential targets for drugs aiming at inhibiting IKKε activity or expression.
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Affiliation(s)
- Virginie Williams
- CRCHUM - Centre de recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Qc H2X 0A9, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Qc, Montréal, Canada
| | - Andrée-Anne Grosset
- CRCHUM - Centre de recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Qc H2X 0A9, Canada.,INRS-Institut Armand-Frappier, INRS, 531 Boul. des Prairies, Laval, Qc H7V 1B7, Canada.,IRIC, Université de Montréal, 2900 Boul. Édouard-Montpetit, Montréal, Québec, H3T 1J4, Canada
| | - Natalia Zamorano Cuervo
- CRCHUM - Centre de recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Qc H2X 0A9, Canada
| | - Yves St-Pierre
- INRS-Institut Armand-Frappier, INRS, 531 Boul. des Prairies, Laval, Qc H7V 1B7, Canada
| | - Marie-Pierre Sylvestre
- CRCHUM - Centre de recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Qc H2X 0A9, Canada.,Department of Social and Preventive Medicine, Ecole de santé publique, Université de Montréal, Qc, Montréal, Canada
| | - Louis Gaboury
- IRIC, Université de Montréal, 2900 Boul. Édouard-Montpetit, Montréal, Québec, H3T 1J4, Canada
| | - Nathalie Grandvaux
- CRCHUM - Centre de recherche du Centre Hospitalier de l'Université de Montréal, 900 rue Saint-Denis, Montréal, Qc H2X 0A9, Canada. .,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Qc, Montréal, Canada.
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Cervantes-Ortiz SL, Zamorano Cuervo N, Grandvaux N. Respiratory Syncytial Virus and Cellular Stress Responses: Impact on Replication and Physiopathology. Viruses 2016; 8:v8050124. [PMID: 27187445 PMCID: PMC4885079 DOI: 10.3390/v8050124] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/14/2016] [Accepted: 04/21/2016] [Indexed: 02/08/2023] Open
Abstract
Human respiratory syncytial virus (RSV), a member of the Paramyxoviridae family, is a major cause of severe acute lower respiratory tract infection in infants, elderly and immunocompromised adults. Despite decades of research, a complete integrated picture of RSV-host interaction is still missing. Several cellular responses to stress are involved in the host-response to many virus infections. The endoplasmic reticulum stress induced by altered endoplasmic reticulum (ER) function leads to activation of the unfolded-protein response (UPR) to restore homeostasis. Formation of cytoplasmic stress granules containing translationally stalled mRNAs is a means to control protein translation. Production of reactive oxygen species is balanced by an antioxidant response to prevent oxidative stress and the resulting damages. In recent years, ongoing research has started to unveil specific regulatory interactions of RSV with these host cellular stress responses. Here, we discuss the latest findings regarding the mechanisms evolved by RSV to induce, subvert or manipulate the ER stress, the stress granule and oxidative stress responses. We summarize the evidence linking these stress responses with the regulation of RSV replication and the associated pathogenesis.
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Affiliation(s)
- Sandra L Cervantes-Ortiz
- CRCHUM-Centre Hospitalier de l'Université de Montréal, Montréal, QC H2X 0A9, Canada.
- Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada.
- Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Natalia Zamorano Cuervo
- CRCHUM-Centre Hospitalier de l'Université de Montréal, Montréal, QC H2X 0A9, Canada.
- Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Nathalie Grandvaux
- CRCHUM-Centre Hospitalier de l'Université de Montréal, Montréal, QC H2X 0A9, Canada.
- Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada.
- Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada.
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