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Alempic JM, Bisio H, Villalta A, Santini S, Lartigue A, Schmitt A, Bugnot C, Notaro A, Belmudes L, Adrait A, Poirot O, Ptchelkine D, De Castro C, Couté Y, Abergel C. Functional redundancy revealed by the deletion of the mimivirus GMC-oxidoreductase genes. Microlife 2024; 5:uqae006. [PMID: 38659623 PMCID: PMC11042495 DOI: 10.1093/femsml/uqae006] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/04/2024] [Indexed: 04/26/2024]
Abstract
The mimivirus 1.2 Mb genome was shown to be organized into a nucleocapsid-like genomic fiber encased in the nucleoid compartment inside the icosahedral capsid. The genomic fiber protein shell is composed of a mixture of two GMC-oxidoreductase paralogs, one of them being the main component of the glycosylated layer of fibrils at the surface of the virion. In this study, we determined the effect of the deletion of each of the corresponding genes on the genomic fiber and the layer of surface fibrils. First, we deleted the GMC-oxidoreductase, the most abundant in the genomic fiber, and determined its structure and composition in the mutant. As expected, it was composed of the second GMC-oxidoreductase and contained 5- and 6-start helices similar to the wild-type fiber. This result led us to propose a model explaining their coexistence. Then we deleted the GMC-oxidoreductase, the most abundant in the layer of fibrils, to analyze its protein composition in the mutant. Second, we showed that the fitness of single mutants and the double mutant were not decreased compared with the wild-type viruses under laboratory conditions. Third, we determined that deleting the GMC-oxidoreductase genes did not impact the glycosylation or the glycan composition of the layer of surface fibrils, despite modifying their protein composition. Because the glycosylation machinery and glycan composition of members of different clades are different, we expanded the analysis of the protein composition of the layer of fibrils to members of the B and C clades and showed that it was different among the three clades and even among isolates within the same clade. Taken together, the results obtained on two distinct central processes (genome packaging and virion coating) illustrate an unexpected functional redundancy in members of the family Mimiviridae, suggesting this may be the major evolutionary force behind their giant genomes.
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Affiliation(s)
- Jean-Marie Alempic
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Hugo Bisio
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Alejandro Villalta
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Sébastien Santini
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Audrey Lartigue
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Alain Schmitt
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Claire Bugnot
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Anna Notaro
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055 Portici, Italy
| | - Lucid Belmudes
- Univ. Grenoble Alpes, CEA, INSERM, UA13 BGE, CNRS, CEA, FR2048, 38000 Grenoble, France
| | - Annie Adrait
- Univ. Grenoble Alpes, CEA, INSERM, UA13 BGE, CNRS, CEA, FR2048, 38000 Grenoble, France
| | - Olivier Poirot
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
| | - Denis Ptchelkine
- Aix–Marseille University, Centre National de la Recherche Scientifique, Architecture et Fonction des Macromolécules Biologiques, Unité Mixte de Recherche 7257 (IM2B), 13288 Marseille Cedex 9, France
| | - Cristina De Castro
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055 Portici, Italy
| | - Yohann Couté
- Univ. Grenoble Alpes, CEA, INSERM, UA13 BGE, CNRS, CEA, FR2048, 38000 Grenoble, France
| | - Chantal Abergel
- Aix–Marseille University, Centre National de la Recherche Scientifique, Information Génomique & Structurale (IGS), Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479, IM2B, IOM), 13288 Marseille Cedex 9, France
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Andrique C, Bonnet AL, Dang J, Lesieur J, Krautzberger AM, Baroukh B, Torrens C, Sadoine J, Schmitt A, Rochefort GY, Bardet C, Six I, Houillier P, Tharaux PL, Schrewe H, Gaucher C, Chaussain C. Vasorin as an actor of bone turnover? J Cell Physiol 2024. [PMID: 38504496 DOI: 10.1002/jcp.31257] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/21/2024]
Abstract
Bone diseases are increasing with aging populations and it is important to identify clues to develop innovative treatments. Vasn, which encodes vasorin (Vasn), a transmembrane protein involved in the pathophysiology of several organs, is expressed during the development in intramembranous and endochondral ossification zones. Here, we studied the impact of Vasn deletion on the osteoblast and osteoclast dialog through a cell Coculture model. In addition, we explored the bone phenotype of Vasn KO mice, either constitutive or tamoxifen-inducible, or with an osteoclast-specific deletion. First, we show that both osteoblasts and osteoclasts express Vasn. Second, we report that, in both KO mouse models but not in osteoclast-targeted KO mice, Vasn deficiency was associated with an osteopenic bone phenotype, due to an imbalance in favor of osteoclastic resorption. Finally, through the Coculture experiments, we identify a dysregulation of the Wnt/β-catenin pathway together with an increase in RANKL release by osteoblasts, which led to an enhanced osteoclast activity. This study unravels a direct role of Vasn in bone turnover, introducing a new biomarker or potential therapeutic target for bone pathologies.
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Affiliation(s)
| | - Anne Laure Bonnet
- Université Paris Cité, Montrouge, France
- AP-HP, Services de médecine bucco-dentaire: GH Nord - Université Paris Cité, GH Sorbonne Université, GH Henri Mondor, Paris, France
| | - Julien Dang
- Paris Cardiovascular Research Centre - PARCC, Université Paris Cité, Inserm, Paris, France
| | | | - A Michaela Krautzberger
- Department of Developmental Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | | | | | - Alain Schmitt
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
| | | | | | - Isabelle Six
- URP 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Jules Verne University of Picardie, Amiens, France
| | - Pascal Houillier
- Centre de Recherche des Cordeliers, INSERM U1138, Sorbonne Université, Université Paris Cité, Paris, France
- AP-HP, Explorations fonctionnelles rénales, Physiologie, Hôpital européen Georges-Pompidou, Paris, France
| | - Pierre Louis Tharaux
- Paris Cardiovascular Research Centre - PARCC, Université Paris Cité, Inserm, Paris, France
| | - Heinrich Schrewe
- Department of Developmental Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Celine Gaucher
- Université Paris Cité, Montrouge, France
- AP-HP, Services de médecine bucco-dentaire: GH Nord - Université Paris Cité, GH Sorbonne Université, GH Henri Mondor, Paris, France
| | - Catherine Chaussain
- Université Paris Cité, Montrouge, France
- AP-HP, Services de médecine bucco-dentaire: GH Nord - Université Paris Cité, GH Sorbonne Université, GH Henri Mondor, Paris, France
- APHP, Centre de reference des maladies rares du phosphate et du calcium (filière OSCAR, ERN BOND), Hôpital Bretonneau, Paris, France
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3
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Murigneux E, Softic L, Aubé C, Grandi C, Judith D, Bruce J, Le Gall M, Guillonneau F, Schmitt A, Parissi V, Berlioz-Torrent C, Meertens L, Hansen MMK, Gallois-Montbrun S. Proteomic analysis of SARS-CoV-2 particles unveils a key role of G3BP proteins in viral assembly. Nat Commun 2024; 15:640. [PMID: 38245532 PMCID: PMC10799903 DOI: 10.1038/s41467-024-44958-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/05/2024] [Indexed: 01/22/2024] Open
Abstract
Considerable progress has been made in understanding the molecular host-virus battlefield during SARS-CoV-2 infection. Nevertheless, the assembly and egress of newly formed virions are less understood. To identify host proteins involved in viral morphogenesis, we characterize the proteome of SARS-CoV-2 virions produced from A549-ACE2 and Calu-3 cells, isolated via ultracentrifugation on sucrose cushion or by ACE-2 affinity capture. Bioinformatic analysis unveils 92 SARS-CoV-2 virion-associated host factors, providing a valuable resource to better understand the molecular environment of virion production. We reveal that G3BP1 and G3BP2 (G3BP1/2), two major stress granule nucleators, are embedded within virions and unexpectedly favor virion production. Furthermore, we show that G3BP1/2 participate in the formation of cytoplasmic membrane vesicles, that are likely virion assembly sites, consistent with a proviral role of G3BP1/2 in SARS-CoV-2 dissemination. Altogether, these findings provide new insights into host factors required for SARS-CoV-2 assembly with potential implications for future therapeutic targeting.
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Affiliation(s)
- Emilie Murigneux
- Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
| | - Laurent Softic
- Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
| | - Corentin Aubé
- Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
| | - Carmen Grandi
- Institute for Molecules and Materials, Radboud University, 6525, AJ, Nijmegen, the Netherlands
| | - Delphine Judith
- Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
| | - Johanna Bruce
- Proteom'IC facility, Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
| | - Morgane Le Gall
- Proteom'IC facility, Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
| | - François Guillonneau
- Proteom'IC facility, Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
- Institut de Cancérologie de l'Ouest (ICO), CRCi2NA-Inserm UMR 1307, CNRS UMR 6075, Nantes Université, Angers, France
| | - Alain Schmitt
- Université Paris Cité, CNRS, Inserm, Institut Cochin, F-75014, Paris, France
| | - Vincent Parissi
- Microbiologie Fondamentale et Pathogénicité Laboratory (MFP), UMR 5234, « Mobility of pathogenic genomes and chromatin dynamics » team (MobilVIR), CNRS-University of Bordeaux, DyNAVIR network, Bordeaux, France
| | | | - Laurent Meertens
- Université Paris Cité, Inserm U944, CNRS 7212, Institut de Recherche Saint-Louis, Hôpital Saint-Louis, Paris, France
| | - Maike M K Hansen
- Institute for Molecules and Materials, Radboud University, 6525, AJ, Nijmegen, the Netherlands
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Kurnia DA, Soewondo P, Irawaty D, Umar J, Dahlia D, Schmitt A. Expanding self-consciousness of health status for diabetes chronic complications among adults: a systematic review. Eur Rev Med Pharmacol Sci 2023; 27:12070-12079. [PMID: 38164869 DOI: 10.26355/eurrev_202312_34805] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
OBJECTIVE Self-consciousness is defined as a subject (I) then becomes the object (Me) associated with a present moment of self-experience in which one is aware of their experience without any reflexive judgment attached, a state commonly investigated in mindfulness studies. On the other hand, self-consciousness is viewed as a reflexive experience and, thus, as a synonym for self-reflection. Self-consciousness is an important determinant of behaviors. Expanding self-consciousness is important among adults with diabetes to optimize health prevention and compliance with diabetes self-management in the long term. The chronic complications of diabetes comprise heart disease, stroke, nephropathy, retinopathy, and neuropathy. This review aims to explain the relationship between self-consciousness and chronic diabetes complications. MATERIALS AND METHODS An electronic literature search was conducted in the English language in several databases. The Joanna-Briggs Institute was referenced for the quality assessment of case studies, cohort and cross-sectional studies, and qualitative studies, while systematic reviews were evaluated through PRISMA-S. Results were reported according to the PRISMA guidelines. RESULTS A total of 89 studies related to self-consciousness of diabetes chronic complications were not found. However, many findings related to chronic complications are based on a lack of knowledge of diabetes and long-term self-management. People with less education, multiple comorbidities, and cognitive dysfunction need lifestyle changes to prevent diabetes and chronic complications. CONCLUSIONS Future research should be oriented toward assessing the risk of chronic diabetes complications. Our findings suggest that research should expand self-consciousness and caring partnerships to improve self-consciousness and patients' obedience.
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Affiliation(s)
- D A Kurnia
- Department of Medical-Surgical Nursing, Faculty of Nursing, Universitas Indonesia, Depok, West Java, Indonesia.
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5
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Berthault C, Gaucher S, Gouin O, Schmitt A, Chen M, Woodley D, Titeux M, Hovnanian A, Izmiryan A. Highly Efficient Ex Vivo Correction of COL7A1 through Ribonucleoprotein-Based CRISPR/Cas9 and Homology-Directed Repair to Treat Recessive Dystrophic Epidermolysis Bullosa. J Invest Dermatol 2023:S0022-202X(23)03117-2. [PMID: 38043638 DOI: 10.1016/j.jid.2023.10.035] [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: 03/23/2023] [Revised: 10/19/2023] [Accepted: 10/30/2023] [Indexed: 12/05/2023]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a rare and severe genetic skin disease responsible for blistering of the skin and mucosa after minor trauma. RDEB is caused by a wide variety of variants in COL7A1 encoding type VII Collagen, the major component of anchoring fibrils that form key attachment structures for dermal-epidermal adherence. In this study, we achieved highly efficient COL7A1 editing in primary RDEB keratinocytes and fibroblasts from 2 patients homozygous for the c.6508C>T (p.Gln2170∗) variant through CRISPR/Cas9-mediated homology-directed repair. Three guide RNAs targeting the c.6508C>T variant or harboring sequences were delivered together with high-fidelity Cas9 as a ribonucleoprotein complex. Among them, one achieved 73% cleavage activity in primary RDEB keratinocytes and RDEB fibroblasts. Then, we treated RDEB keratinocytes and RDEB fibroblasts with this specific ribonucleoprotein complex and the corresponding donor template delivered as single-stranded oligodeoxynucleotide and achieved up to 58% of genetic correction as well as type VII Collagen rescue. Finally, grafting of corrected 3-dimensional skin onto nude mice induced re-expression and normal localization of type VII Collagen as well as anchoring fibril formation at the dermal-epidermal junction 5 and 10 weeks after grafting. With this promising nonviral approach, we achieved therapeutically relevant specific gene editing that could be applicable to all variants in exon 80 of COL7A1 in primary RDEB cells.
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Affiliation(s)
- Camille Berthault
- INSERM UMR 1163, Laboratory of Genetic skin diseases, Imagine Institute, Paris, France; Paris Cité University, Paris, France
| | - Sonia Gaucher
- INSERM UMR 1163, Laboratory of Genetic skin diseases, Imagine Institute, Paris, France; Paris Cité University, Paris, France
| | - Olivier Gouin
- INSERM UMR 1163, Laboratory of Genetic skin diseases, Imagine Institute, Paris, France; Paris Cité University, Paris, France
| | - Alain Schmitt
- Electronic Microscopy Facility, INSERM UMR 1016, Cochin Institute, Paris, France
| | - Mei Chen
- Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - David Woodley
- Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA; Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Matthias Titeux
- INSERM UMR 1163, Laboratory of Genetic skin diseases, Imagine Institute, Paris, France; Paris Cité University, Paris, France
| | - Alain Hovnanian
- INSERM UMR 1163, Laboratory of Genetic skin diseases, Imagine Institute, Paris, France; Paris Cité University, Paris, France; Department of Genomic Medicine for Rare Diseases, Necker Hospital for Sick Children, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France
| | - Araksya Izmiryan
- INSERM UMR 1163, Laboratory of Genetic skin diseases, Imagine Institute, Paris, France; Paris Cité University, Paris, France.
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Rigou S, Schmitt A, Alempic JM, Lartigue A, Vendloczki P, Abergel C, Claverie JM, Legendre M. Pithoviruses Are Invaded by Repeats That Contribute to Their Evolution and Divergence from Cedratviruses. Mol Biol Evol 2023; 40:msad244. [PMID: 37950899 PMCID: PMC10664404 DOI: 10.1093/molbev/msad244] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/13/2023] Open
Abstract
Pithoviridae are amoeba-infecting giant viruses possessing the largest viral particles known so far. Since the discovery of Pithovirus sibericum, recovered from a 30,000-yr-old permafrost sample, other pithoviruses, and related cedratviruses, were isolated from various terrestrial and aquatic samples. Here, we report the isolation and genome sequencing of 2 Pithoviridae from soil samples, in addition to 3 other recent isolates. Using the 12 available genome sequences, we conducted a thorough comparative genomic study of the Pithoviridae family to decipher the organization and evolution of their genomes. Our study reveals a nonuniform genome organization in 2 main regions: 1 concentrating core genes and another gene duplications. We also found that Pithoviridae genomes are more conservative than other families of giant viruses, with a low and stable proportion (5% to 7%) of genes originating from horizontal transfers. Genome size variation within the family is mainly due to variations in gene duplication rates (from 14% to 28%) and massive invasion by inverted repeats. While these repeated elements are absent from cedratviruses, repeat-rich regions cover as much as a quarter of the pithoviruses genomes. These regions, identified using a dedicated pipeline, are hotspots of mutations, gene capture events, and genomic rearrangements that contribute to their evolution.
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Affiliation(s)
- Sofia Rigou
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
| | - Alain Schmitt
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
| | - Jean-Marie Alempic
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
| | - Audrey Lartigue
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
| | - Peter Vendloczki
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
| | - Chantal Abergel
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
| | - Jean-Michel Claverie
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
| | - Matthieu Legendre
- Information Génomique & Structurale, Unité Mixte de Recherche 7256 (Institut de Microbiologie de la Méditerranée, FR3479), IM2B, IOM, Aix–Marseille University, Centre National de la Recherche Scientifique, Marseille 13288 Cedex 9, France
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7
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Yoganathan T, Perez-Liva M, Balvay D, Le Gall M, Lallemand A, Certain A, Autret G, Mokrani Y, Guillonneau F, Bruce J, Nguyen V, Gencer U, Schmitt A, Lager F, Guilbert T, Bruneval P, Vilar J, Maissa N, Mousseaux E, Viel T, Renault G, Kachenoura N, Tavitian B. Author Correction: Acute stress induces long-term metabolic, functional, and structural remodeling of the heart. Nat Commun 2023; 14:4143. [PMID: 37438351 DOI: 10.1038/s41467-023-39910-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023] Open
Affiliation(s)
| | - Mailyn Perez-Liva
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Nuclear Physics Group and IPARCOS, Department of Structure of Matter, Thermal Physics and Electronics, CEI Moncloa, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Daniel Balvay
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France
| | - Morgane Le Gall
- Université Paris Cité, P53 proteom'IC facility, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Alice Lallemand
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Anais Certain
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Gwennhael Autret
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France
| | - Yasmine Mokrani
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - François Guillonneau
- Institut de Cancérologie de l'Ouest, CNRS UMR6075 INSERM U1307, 15 rue André Boquel, F-49055, Angers, France
| | - Johanna Bruce
- Université Paris Cité, P53 proteom'IC facility, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Vincent Nguyen
- Sorbonne Université, Laboratoire d'Imagerie Biomédicale, Inserm, CNRS, F-75006, Paris, France
| | - Umit Gencer
- Service de Radiologie, AP-HP, hôpital européen Georges Pompidou, F-75015, Paris, France
| | - Alain Schmitt
- Université Paris Cité, Cochin Imaging, Electron microscopy, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Franck Lager
- Université Paris Cité, Plateforme d'Imageries du Vivant, Institut Cochin, Inserm-CNRS, F-75014, Paris, France
| | - Thomas Guilbert
- Université Paris Cité, Cochin Imaging Photonic, IMAG'IC, Institut Cochin, Inserm, CNRS, F-75014, Paris, France
| | | | - Jose Vilar
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Nawal Maissa
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Elie Mousseaux
- Service de Radiologie, AP-HP, hôpital européen Georges Pompidou, F-75015, Paris, France
| | - Thomas Viel
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France
| | - Gilles Renault
- Université Paris Cité, Plateforme d'Imageries du Vivant, Institut Cochin, Inserm-CNRS, F-75014, Paris, France
| | - Nadjia Kachenoura
- Sorbonne Université, Laboratoire d'Imagerie Biomédicale, Inserm, CNRS, F-75006, Paris, France
| | - Bertrand Tavitian
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France.
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France.
- Service de Radiologie, AP-HP, hôpital européen Georges Pompidou, F-75015, Paris, France.
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Yoganathan T, Perez-Liva M, Balvay D, Le Gall M, Lallemand A, Certain A, Autret G, Mokrani Y, Guillonneau F, Bruce J, Nguyen V, Gencer U, Schmitt A, Lager F, Guilbert T, Bruneval P, Vilar J, Maissa N, Mousseaux E, Viel T, Renault G, Kachenoura N, Tavitian B. Acute stress induces long-term metabolic, functional, and structural remodeling of the heart. Nat Commun 2023; 14:3835. [PMID: 37380648 DOI: 10.1038/s41467-023-39590-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/21/2023] [Indexed: 06/30/2023] Open
Abstract
Takotsubo cardiomyopathy is a stress-induced cardiovascular disease with symptoms comparable to those of an acute coronary syndrome but without coronary obstruction. Takotsubo was initially considered spontaneously reversible, but epidemiological studies revealed significant long-term morbidity and mortality, the reason for which is unknown. Here, we show in a female rodent model that a single pharmacological challenge creates a stress-induced cardiomyopathy similar to Takotsubo. The acute response involves changes in blood and tissue biomarkers and in cardiac in vivo imaging acquired with ultrasound, magnetic resonance and positron emission tomography. Longitudinal follow up using in vivo imaging, histochemistry, protein and proteomics analyses evidences a continued metabolic reprogramming of the heart towards metabolic malfunction, eventually leading to irreversible damage in cardiac function and structure. The results combat the supposed reversibility of Takotsubo, point to dysregulation of glucose metabolic pathways as a main cause of long-term cardiac disease and support early therapeutic management of Takotsubo.
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Affiliation(s)
| | | | - Daniel Balvay
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France
| | - Morgane Le Gall
- Université Paris Cité, P53 proteom'IC facility, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Alice Lallemand
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Anais Certain
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Gwennhael Autret
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France
| | - Yasmine Mokrani
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - François Guillonneau
- Institut de Cancérologie de l'Ouest, CNRS UMR6075 INSERM U1307, 15 rue André Boquel, F-49055, Angers, France
| | - Johanna Bruce
- Université Paris Cité, P53 proteom'IC facility, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Vincent Nguyen
- Sorbonne Université, Laboratoire d'Imagerie Biomédicale, Inserm, CNRS, F-75006, Paris, France
| | - Umit Gencer
- Service de Radiologie, AP-HP, hôpital européen Georges Pompidou, F-75015, Paris, France
| | - Alain Schmitt
- Université Paris Cité, Cochin Imaging, Electron microscopy, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Franck Lager
- Université Paris Cité, Plateforme d'Imageries du Vivant, Institut Cochin, Inserm-CNRS, F-75014, Paris, France
| | - Thomas Guilbert
- Université Paris Cité, Cochin Imaging Photonic, IMAG'IC, Institut Cochin, Inserm, CNRS, F-75014, Paris, France
| | | | - Jose Vilar
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Nawal Maissa
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
| | - Elie Mousseaux
- Service de Radiologie, AP-HP, hôpital européen Georges Pompidou, F-75015, Paris, France
| | - Thomas Viel
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France
| | - Gilles Renault
- Université Paris Cité, Plateforme d'Imageries du Vivant, Institut Cochin, Inserm-CNRS, F-75014, Paris, France
| | - Nadjia Kachenoura
- Sorbonne Université, Laboratoire d'Imagerie Biomédicale, Inserm, CNRS, F-75006, Paris, France
| | - Bertrand Tavitian
- Université Paris Cité, Inserm, PARCC, F-75015, Paris, France.
- Université Paris Cité, Plateforme d'Imageries du Vivant, PARCC, F-75015, Paris, France.
- Service de Radiologie, AP-HP, hôpital européen Georges Pompidou, F-75015, Paris, France.
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9
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Schmitt A, Chaumillon E. Understanding morphological evolution and sediment dynamics at multi-time scales helps balance human activities and protect coastal ecosystems: An example with the Gironde and Pertuis Marine Park. Sci Total Environ 2023; 887:163819. [PMID: 37137367 DOI: 10.1016/j.scitotenv.2023.163819] [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: 01/30/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/05/2023]
Abstract
Finding a balance between the preservation of habitat, species and the sustainable development of human activities in Marine Protected Areas (MPAs) is made even more challenging in coastal areas where sediment dynamics entails naturally changing habitats. To achieve this goal, a solid knowledge base is needed, and reviews are essential. Starting from an extensive review of sediment dynamics and coastal evolution at three-time scales (from millenaries to events), in the Gironde and Pertuis Marine Park (GPMP, French Atlantic coast), we investigated the interactions between human activities, sediment dynamics and morphological evolution in the GPMP. Five activities were identified as having a maximum interaction with coastal dynamics: Land reclamation, shellfish farming, coastal defences, dredging and sand mining. In sheltered areas, where natural sediment fill occurs, land reclamation and shellfish farming increase sedimentation through a positive feedback mechanism, leading to instability. Natural coastal erosion and sediment fill in harbours and tidal channels are fought by coastal defences and dredging, respectively, creating negative feedback and stability. However, these activities also generate negative side effects such as upper beach erosion, pollution, and increased turbidity. Sand mining, mainly developed in submarine incised valleys, results in a deepening of the sea floor, which is naturally filled by sediments from surrounding areas, tending towards shoreface profile restoration. However, sand extraction exceeds natural renewal rates, and may impact the stability of coastal ecosystems in the long term. These activities are at the heart of environmental management and preservation issues. This review and a discussion of the interactions between human activities and coastal behaviour enabled us to make recommendations that could counteract instabilities and negative side effects. They mainly include depolderization, strategic retreat, optimization and sufficiency. Given the diversity of the coastal environments and human activities found in the GPMP, this work is transferable to many MPAs and coastal areas whose objective is to foster sustainable human activities compatible with habitat preservation.
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Affiliation(s)
- A Schmitt
- UMR 7266 LIENSs CNRS La Rochelle University, France.
| | - E Chaumillon
- UMR 7266 LIENSs CNRS La Rochelle University, France
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10
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Dufour J, Choquet S, Hoang-Xuan K, Schmitt A, Ahle G, Houot R, Taillandier L, Gressin R, Casasnovas O, Marolleau JP, Tamburini J, Serrier C, Perez E, Paillassa J, Gyan E, Chauchet A, Ursu R, Kas A, Soussain C, Houillier C. Systemic relapses of primary CNS lymphomas (PCNSL): a LOC network study. Ann Hematol 2023; 102:1159-1169. [PMID: 36991231 DOI: 10.1007/s00277-023-05108-6] [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: 09/22/2022] [Accepted: 01/19/2023] [Indexed: 03/31/2023]
Abstract
Primary central nervous system lymphomas (PCNSLs) classically remain confined within the CNS throughout their evolution for unknown reasons. Our objective was to analyse the rare extracerebral relapses of PCNSL in a nationwide population-based study. We retrospectively selected PCNSL patients who experienced extracerebral relapse during their follow-up from the French LOC database. Of the 1968 PCNSL included in the database from 2011, 30 (1.5%, median age 71 years, median KPS 70) presented an extracerebral relapse, either pure (n = 20) or mixed (both extracerebral and in the CNS) (n = 10), with a histological confirmation in 20 cases. The median delay between initial diagnosis and systemic relapse was 15.5 months [2-121 months]. We found visceral (n = 23, 77%), including testis in 5 (28%) men and breast in 3 (27%) women, lymph node (n = 12, 40%), and peripheral nervous system (PNS) (n = 7, 23%) involvement. Twenty-seven patients were treated with chemotherapy, either with only systemic targets (n = 7) or mixed systemic and CNS targets (n = 20), 4 were consolidated by HCT-ASCT. After systemic relapse, the median progression-free survival and overall survival (OS) were 7 and 12 months, respectively. KPS > 70 and pure systemic relapses were significantly associated with higher OS. Extracerebral PCNSL relapses are rare, mainly extranodal, and frequently involve the testis, breast, and PNS. The prognosis was worse in mixed relapses. Early relapses raise the question of misdiagnosed occult extracerebral lymphoma at diagnostic workup that should systematically include a PET-CT. Paired tumour analysis at diagnosis/relapse would provide a better understanding of the underlying molecular mechanisms.
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Affiliation(s)
- J Dufour
- Hôpital Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, APHP, Sorbonne Université, IHU, ICM, Paris, France
| | - S Choquet
- Hôpital Pitié-Salpêtrière, Service d'Hématologie clinique, Paris, France
| | - K Hoang-Xuan
- Hôpital Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, APHP, Sorbonne Université, IHU, ICM, Paris, France
| | - A Schmitt
- Institut de Bergonie, Service d'Hématologie, Bordeaux, France
| | - G Ahle
- Hôpitaux civils de Colmar, Service de Neurologie, Colmar, France
| | - R Houot
- Hôpital Universitaire de Rennes, Service d'Hématologie, Rennes, France
| | - L Taillandier
- Hôpital Universitaire de Nancy, Service de Neurologie, Nancy, France
| | - R Gressin
- Hôpital Universitaire de Grenoble, Service d'Hématologie, Grenoble, France
| | - O Casasnovas
- Hôpital Universitaire de Dijon, Service d'hematologie clinique, Dijon, France
| | - J P Marolleau
- Hôpital Universitaire d'Amiens, Service d'Hematologie clinique, Amiens, France
| | - J Tamburini
- Hôpital Cochin, Service d'Hématologie, Paris, France
| | - C Serrier
- Centre Hospitalier de Perpignan, Service d'Hématologie, Perpignan, France
| | - E Perez
- Hôpital Universitaire de la Réunion, Service d'oncologie-hématologie, Paris, La Réunion, France
| | - J Paillassa
- Hôpital Universitaire d'Angers, Service d'Hématologie, Angers, France
| | - E Gyan
- Hôpital Universitaire de Tours, Service d'Hématologie, Tours, France
| | - A Chauchet
- Hôpital Universitaire de Besançon, Service d'Hématologie, Besançon, France
| | - R Ursu
- Hôpital Saint-Louis, Service de Neurologie à orientation oncologique, Paris, France
| | - A Kas
- Hôpital Pitié-Salpêtrière, Service de Médecine Nucléaire, Paris, France
| | - C Soussain
- Institut Curie, Service d'Hématologie, Saint-Cloud, France and INSERM U932, Institut Curie, PSL Research University, Paris, France
| | - C Houillier
- Hôpital Pitié-Salpêtrière, Service de Neurologie 2-Mazarin, APHP, Sorbonne Université, IHU, ICM, Paris, France.
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11
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Star BS, van der Slikke EC, Ransy C, Schmitt A, Henning RH, Bouillaud F, Bouma HR. GYY4137-Derived Hydrogen Sulfide Donates Electrons to the Mitochondrial Electron Transport Chain via Sulfide: Quinone Oxidoreductase in Endothelial Cells. Antioxidants (Basel) 2023; 12:antiox12030587. [PMID: 36978834 PMCID: PMC10044827 DOI: 10.3390/antiox12030587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
The protective effects of hydrogen sulphide (H2S) to limit oxidative injury and preserve mitochondrial function during sepsis, ischemia/reperfusion, and neurodegenerative diseases have prompted the development of soluble H2S-releasing compounds such as GYY4137. Yet, the effects of GYY4137 on the mitochondrial function of endothelial cells remain unclear, while this cell type comprises the first target cell after parenteral administration. Here, we specifically assessed whether human endothelial cells possess a functional sulfide:quinone oxidoreductase (SQOR), to oxidise GYY4137-released H2S within the mitochondria for electron donation to the electron transport chain. We demonstrate that H2S administration increases oxygen consumption by human umbilical vein endothelial cells (HUVECs), which does not occur in the SQOR-deficient cell line SH-SY5Y. GYY4137 releases H2S in HUVECs in a dose- and time-dependent fashion as quantified by oxygen consumption and confirmed by lead acetate assay, as well as AzMC fluorescence. Scavenging of intracellular H2S using zinc confirmed intracellular and intramitochondrial sulfur, which resulted in mitotoxic zinc sulfide (ZnS) precipitates. Together, GYY4137 increases intramitochondrial H2S and boosts oxygen consumption of endothelial cells, which is likely governed via the oxidation of H2S by SQOR. This mechanism in endothelial cells may be instrumental in regulating H2S levels in blood and organs but can also be exploited to quantify H2S release by soluble donors such as GYY4137 in living systems.
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Affiliation(s)
- Bastiaan S. Star
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
- Correspondence: (B.S.S.); (H.R.B.)
| | - Elisabeth C. van der Slikke
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
| | - Céline Ransy
- The National Center for Scientific Research (CNRS), The National Institute of Health and Medical Research (Inserm), Université de Paris, F-75014 Paris, France
| | - Alain Schmitt
- The National Center for Scientific Research (CNRS), The National Institute of Health and Medical Research (Inserm), Université de Paris, F-75014 Paris, France
| | - Robert H. Henning
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
| | - Frédéric Bouillaud
- The National Center for Scientific Research (CNRS), The National Institute of Health and Medical Research (Inserm), Université de Paris, F-75014 Paris, France
| | - Hjalmar R. Bouma
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
- Correspondence: (B.S.S.); (H.R.B.)
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12
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Hernández-Verdin I, Kirasic E, Wienand K, Mokhtari K, Eimer S, Loiseau H, Rousseau A, Paillassa J, Ahle G, Lerintiu F, Uro-Coste E, Oberic L, Figarella-Branger D, Chinot O, Gauchotte G, Taillandier L, Marolleau JP, Polivka M, Adam C, Ursu R, Schmitt A, Barillot N, Nichelli L, Lozano-Sánchez F, Ibañez-Juliá MJ, Peyre M, Mathon B, Abada Y, Charlotte F, Davi F, Stewart C, de Reyniès A, Choquet S, Soussain C, Houillier C, Chapuy B, Hoang-Xuan K, Alentorn A. Molecular and clinical diversity in primary central nervous system lymphoma. Ann Oncol 2023; 34:186-199. [PMID: 36402300 DOI: 10.1016/j.annonc.2022.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [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: 08/31/2022] [Accepted: 11/08/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Primary central nervous system lymphoma (PCNSL) is a rare and distinct entity within diffuse large B-cell lymphoma presenting with variable response rates probably to underlying molecular heterogeneity. PATIENTS AND METHODS To identify and characterize PCNSL heterogeneity and facilitate clinical translation, we carried out a comprehensive multi-omic analysis [whole-exome sequencing, RNA sequencing (RNA-seq), methylation sequencing, and clinical features] in a discovery cohort of 147 fresh-frozen (FF) immunocompetent PCNSLs and a validation cohort of formalin-fixed, paraffin-embedded (FFPE) 93 PCNSLs with RNA-seq and clinico-radiological data. RESULTS Consensus clustering of multi-omic data uncovered concordant classification of four robust, non-overlapping, prognostically significant clusters (CS). The CS1 and CS2 groups presented an immune-cold hypermethylated profile but a distinct clinical behavior. The 'immune-hot' CS4 group, enriched with mutations increasing the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) and nuclear factor-κB activity, had the most favorable clinical outcome, while the heterogeneous-immune CS3 group had the worse prognosis probably due to its association with meningeal infiltration and enriched HIST1H1E mutations. CS1 was characterized by high Polycomb repressive complex 2 activity and CDKN2A/B loss leading to higher proliferation activity. Integrated analysis on proposed targets suggests potential use of immune checkpoint inhibitors/JAK1 inhibitors for CS4, cyclin D-Cdk4,6 plus phosphoinositide 3-kinase (PI3K) inhibitors for CS1, lenalidomide/demethylating drugs for CS2, and enhancer of zeste 2 polycomb repressive complex 2 subunit (EZH2) inhibitors for CS3. We developed an algorithm to identify the PCNSL subtypes using RNA-seq data from either FFPE or FF tissue. CONCLUSIONS The integration of genome-wide data from multi-omic data revealed four molecular patterns in PCNSL with a distinctive prognostic impact that provides a basis for future clinical stratification and subtype-based targeted interventions.
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Affiliation(s)
- I Hernández-Verdin
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France
| | - E Kirasic
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France
| | - K Wienand
- Department of Hematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany; Department of Hematology, Oncology and Cancer Immunology, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Berlin, Germany; Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - K Mokhtari
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France; Department of Neuropathology, Groupe Hospitalier Pitié Salpêtrière, APHP, Paris, France
| | - S Eimer
- Department of Pathology, CHU de Bordeaux, Hôpital Pellegrin, Bordeaux, France
| | - H Loiseau
- Department of Neurosurgery, Bordeaux University Hospital Center, Pellegrin Hospital, Bordeaux, France; EA 7435-IMOTION, University of Bordeaux, Bordeaux, France
| | - A Rousseau
- Department of Pathology, PBH, CHU Angers, Angers, France; CRCINA, Université de Nantes-université d'Angers, Angers, France
| | - J Paillassa
- Department of Hematology, CHU Angers, Angers, France
| | - G Ahle
- Department of Neurology, Hôpitaux Civils de Colmar, Colmar, France
| | - F Lerintiu
- Department of Neuropathology, Hôpitaux Civils de Colmar, Strasbourg, France
| | - E Uro-Coste
- Department of Pathology, CHU de Toulouse, IUC-Oncopole, Toulouse, France; INSERM U1037, Cancer Research Center of Toulouse (CRCT), Toulouse, France; Université Toulouse III Paul Sabatier, Toulouse, France
| | - L Oberic
- Department of Hematology, IUC Toulouse Oncopole, Toulouse, France
| | - D Figarella-Branger
- Neuropathology Department, University Hospital Timone, Aix Marseille University, Marseille, France; Inst Neurophysiopathol, CNRS, INP, Aix-Marseille University, Marseille, France
| | - O Chinot
- Department of Neuro-oncology, CHU Timone, APHM, Marseille, France; Institute of NeuroPhysiopathology, CNRS, INP, Aix-Marseille University, Marseille, France
| | - G Gauchotte
- Department of Biopathology, CHRU Nancy, CHRU/ICL, Bâtiment BBB, Vandoeuvre-lès-Nancy, France; Department of Legal Medicine, CHRU Nancy, Vandoeuvre-lès-Nancy, France; INSERM U1256, University of Lorraine, Vandoeuvre-lès-Nancy, France; Centre de Ressources Biologiques, BB-0033-00035, CHRU, Nancy, France
| | - L Taillandier
- Department of Neuro-oncology, CHRU-Nancy, Université de Lorraine, Nancy, France
| | - J-P Marolleau
- Department of Hematology, CHU Amiens-Picardie, Amiens, France
| | - M Polivka
- Department of Anatomopathology, Lariboisière Hospital, Assistance Publique-Hopitaux de Paris, University of Paris, Paris, France
| | - C Adam
- Pathology Department, Bicêtre University Hospital, Public Hospital Network of Paris, Le Kremlin Bicêtre, France
| | - R Ursu
- Department of Neurology, Université de Paris, AP-HP, Hôpital Saint Louis, Paris, France
| | - A Schmitt
- Department of Hematology, Institut Bergonié Hospital, Bordeaux, France
| | - N Barillot
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France
| | - L Nichelli
- Department of Neuroradiology, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France
| | - F Lozano-Sánchez
- Department of Neurology-2, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France
| | | | - M Peyre
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France; Department of Neurosurgery, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France
| | - B Mathon
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France; Department of Neurosurgery, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France
| | - Y Abada
- Department of Neurology-2, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France
| | - F Charlotte
- Department Pathology, Hôpital Pitié-Salpêtrière and Sorbonne University, Paris, France
| | - F Davi
- Department Hematology, APHP, Hôpital Pitié-Salpêtrière and Sorbonne University, Paris, France
| | - C Stewart
- Department Broad Institute of MIT and Harvard, Cambridge, USA
| | - A de Reyniès
- Department INSERM UMR_S1138-Centre de Recherche des Cordeliers-Université Pierre et Marie Curie et Université Paris Descartes, Paris, France
| | - S Choquet
- Department Pathology, Hôpital Pitié-Salpêtrière and Sorbonne University, Paris, France
| | - C Soussain
- Department Hematology Unit, Institut Curie, Saint-Cloud, France
| | - C Houillier
- Department of Neurology-2, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France
| | - B Chapuy
- Department of Hematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany; Department of Hematology, Oncology and Cancer Immunology, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - K Hoang-Xuan
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France; Department of Neurology-2, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France
| | - A Alentorn
- Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Paris, France; Department of Neurology-2, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière-Charles Foix, Paris, France.
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13
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Lambert C, Poullion T, Zhang Q, Schmitt A, Masse JM, Gloux K, Poyart C, Fouet A. A Streptococcus pyogenes DegV protein regulates the membrane lipid content and limits the formation of extracellular vesicles. PLoS One 2023; 18:e0284402. [PMID: 37104252 PMCID: PMC10138225 DOI: 10.1371/journal.pone.0284402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/29/2023] [Indexed: 04/28/2023] Open
Abstract
Membranes contain lipids that are composed of fatty acids (FA) and a polar head. Membrane homeostasis is crucial for optimal bacterial growth and interaction with the environment. Bacteria synthesize their FAs via the FASII pathway. Gram-positive bacteria can incorporate exogenous FAs which need to be phosphorylated to become substrate of the lipid biosynthetic pathway. In many species including staphylococci, streptococci and enterococci, this phosphorylation is carried out by the Fak complex, which is composed of two subunits, FakA and FakB. FakA is the kinase. FakB proteins are members of the DegV family, proteins known to bind FAs. Two or three FakB types have been identified depending on the bacterial species and characterized by their affinity for saturated and/or unsaturated FAs. Some species such as Streptococcus pyogenes, which causes a wide variety of diseases ranging from mild non-invasive to severe invasive infections, possess an uncharacterized additional DegV protein. We identify here this DegV member as a fourth FakB protein, named FakB4. The fakB4 gene is co-regulated with FASII genes suggesting an interaction with endogenous fatty acids. fakB4 deletion has no impact on membrane phospholipid composition nor on the percentage of other major lipids. However, the fakB4 mutant strain produced more lipids and more extracellular membrane vesicles than the wild-type strain. This suggests that FakB4 is involved in endogenous FA binding and controls FA storage or catabolism resulting in a limitation of extracellular FA release via membrane vesicles.
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Affiliation(s)
- Clara Lambert
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
| | - Thifaine Poullion
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
| | - Qiufen Zhang
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
| | - Alain Schmitt
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
| | - Jean-Marc Masse
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
| | - Karine Gloux
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Claire Poyart
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
- AP-HP Centre-Université Paris Cité, Paris, France
| | - Agnès Fouet
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
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Parthasarathy S, Ruggiero SM, Gelot A, Soardi FC, Ribeiro BFR, Pires DEV, Ascher DB, Schmitt A, Rambaud C, Represa A, Xie HM, Lusk L, Wilmarth O, McDonnell PP, Juarez OA, Grace AN, Buratti J, Mignot C, Gras D, Nava C, Pierce SR, Keren B, Kennedy BC, Pena SDJ, Helbig I, Cuddapah VA. A recurrent de novo splice site variant involving DNM1 exon 10a causes developmental and epileptic encephalopathy through a dominant-negative mechanism. Am J Hum Genet 2022; 109:2253-2269. [PMID: 36413998 PMCID: PMC9748255 DOI: 10.1016/j.ajhg.2022.11.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [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: 05/31/2022] [Accepted: 11/01/2022] [Indexed: 11/23/2022] Open
Abstract
Heterozygous pathogenic variants in DNM1 cause developmental and epileptic encephalopathy (DEE) as a result of a dominant-negative mechanism impeding vesicular fission. Thus far, pathogenic variants in DNM1 have been studied with a canonical transcript that includes the alternatively spliced exon 10b. However, after performing RNA sequencing in 39 pediatric brain samples, we find the primary transcript expressed in the brain includes the downstream exon 10a instead. Using this information, we evaluated genotype-phenotype correlations of variants affecting exon 10a and identified a cohort of eleven previously unreported individuals. Eight individuals harbor a recurrent de novo splice site variant, c.1197-8G>A (GenBank: NM_001288739.1), which affects exon 10a and leads to DEE consistent with the classical DNM1 phenotype. We find this splice site variant leads to disease through an unexpected dominant-negative mechanism. Functional testing reveals an in-frame upstream splice acceptor causing insertion of two amino acids predicted to impair oligomerization-dependent activity. This is supported by neuropathological samples showing accumulation of enlarged synaptic vesicles adherent to the plasma membrane consistent with impaired vesicular fission. Two additional individuals with missense variants affecting exon 10a, p.Arg399Trp and p.Gly401Asp, had a similar DEE phenotype. In contrast, one individual with a missense variant affecting exon 10b, p.Pro405Leu, which is less expressed in the brain, had a correspondingly less severe presentation. Thus, we implicate variants affecting exon 10a as causing the severe DEE typically associated with DNM1-related disorders. We highlight the importance of considering relevant isoforms for disease-causing variants as well as the possibility of splice site variants acting through a dominant-negative mechanism.
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Affiliation(s)
- Shridhar Parthasarathy
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19146, USA
| | - Sarah McKeown Ruggiero
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19146, USA
| | - Antoinette Gelot
- AP-HP, Hôpital Armand-Trousseau, Service d'Anatomie Pathologique, 75012 Paris, France; INMED INSERM U 901 Parc Scientifique de Luminy, 13273 Marseille, France; Centre de Recherche Clinique ConCer-LD, Paris, France
| | - Fernanda C Soardi
- GENE - Núcleo de Genética Médica, Belo Horizonte, MG, Brazil; Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Laboratório de Genômica Clínica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Douglas E V Pires
- Computational Biology and Clinical Informatics, Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia; Systems and Computational Biology, Bio21 Institute, University of Melbourne, 30 Flemington Rd, Parkville, VIC 3052, Australia; School of Computing and Information Systems, University of Melbourne, Melbourne, VIC 3053, Australia
| | - David B Ascher
- Computational Biology and Clinical Informatics, Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia; Systems and Computational Biology, Bio21 Institute, University of Melbourne, 30 Flemington Rd, Parkville, VIC 3052, Australia; School of Chemistry and Molecular Biology, University of Queensland, St Lucia, QLD 4072, Australia
| | - Alain Schmitt
- INSERM U 1016, Institut Cochin, Paris, France; CNRS UMR 8104, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Caroline Rambaud
- AP-HP, Hôpital Raymond-Poincaré, Laboratoire Anatomie Pathologique, Garches, France
| | - Alfonso Represa
- INMED, INSERM, Aix-Marseille Université, Campus de Luminy, 13009 Marseille, France
| | - Hongbo M Xie
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19146, USA
| | - Laina Lusk
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19146, USA
| | - Olivia Wilmarth
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Pamela Pojomovsky McDonnell
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Olivia A Juarez
- Baylor College of Medicine Genetics Clinic, Children's Hospital of San Antonio, San Antonio, TX, USA
| | - Alexandra N Grace
- Baylor College of Medicine Genetics Clinic, Children's Hospital of San Antonio, San Antonio, TX, USA
| | - Julien Buratti
- AP-HP, Hôpital de la Pitié Salpêtrière, Département de Génétique, 75013 Paris, France
| | - Cyril Mignot
- AP-HP, Hôpital de la Pitié Salpêtrière, Département de Génétique, 75013 Paris, France; Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, INSERM U 1127, CNRS UMR 7225, ICM, 75013 Paris, France; AP-HP, Hôpital Robert Debré, Service de Neurologie Pediatrique et de Maladies Métaboliques, 75019 Paris, France
| | - Domitille Gras
- AP-HP, Hôpital Robert Debré, Service de Neurologie Pediatrique et de Maladies Métaboliques, 75019 Paris, France
| | - Caroline Nava
- AP-HP, Hôpital de la Pitié Salpêtrière, Département de Génétique, 75013 Paris, France; Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, INSERM U 1127, CNRS UMR 7225, ICM, 75013 Paris, France; AP-HP, Hôpital Robert Debré, Service de Neurologie Pediatrique et de Maladies Métaboliques, 75019 Paris, France
| | - Samuel R Pierce
- The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Physical Therapy, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Boris Keren
- AP-HP, Hôpital de la Pitié Salpêtrière, Département de Génétique, 75013 Paris, France; Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, INSERM U 1127, CNRS UMR 7225, ICM, 75013 Paris, France; AP-HP, Hôpital Robert Debré, Service de Neurologie Pediatrique et de Maladies Métaboliques, 75019 Paris, France
| | - Benjamin C Kennedy
- Division of Neurosurgery, Children's Hospital of Philadelphia, Philadelphia, PA 19146, USA; Department of Neurosurgery, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sergio D J Pena
- GENE - Núcleo de Genética Médica, Belo Horizonte, MG, Brazil; Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Laboratório de Genômica Clínica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ingo Helbig
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA 19146, USA; Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Vishnu Anand Cuddapah
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; The Epilepsy NeuroGenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
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Moore A, Zhang Z, Schmitt A, Higginson D, Mueller B, Zinovoy M, Gelblum D, Yerramilli D, Xu A, Brennan V, Guttmann D, Grossman C, Dover L, Shaverdian N, Pike L, Cuaron J, Lis E, Barzilai O, Bilsky M, Yamada Y. 40 Gray in 5 Fractions for Salvage Re-Irradiation of Spine Lesions Previously Treated with Stereotactic Body Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Villalta A, Schmitt A, Estrozi LF, Quemin ERJ, Alempic JM, Lartigue A, Pražák V, Belmudes L, Vasishtan D, Colmant AMG, Honoré FA, Couté Y, Grünewald K, Abergel C. The giant mimivirus 1.2 Mb genome is elegantly organized into a 30 nm diameter helical protein shield. eLife 2022; 11:77607. [PMID: 35900198 PMCID: PMC9512402 DOI: 10.7554/elife.77607] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 02/04/2022] [Accepted: 07/27/2022] [Indexed: 11/13/2022] Open
Abstract
Mimivirus is the prototype of the Mimiviridae family of giant dsDNA viruses. Little is known about the organization of the 1.2 Mb genome inside the membrane-limited nucleoid filling the ~0.5 µm icosahedral capsids. Cryo-electron microscopy, cryo-electron tomography, and proteomics revealed that it is encased into a ~30-nm diameter helical protein shell surprisingly composed of two GMC-type oxidoreductases, which also form the glycosylated fibrils decorating the capsid. The genome is arranged in 5- or 6-start left-handed super-helices, with each DNA-strand lining the central channel. This luminal channel of the nucleoprotein fiber is wide enough to accommodate oxidative stress proteins and RNA polymerase subunits identified by proteomics. Such elegant supramolecular organization would represent a remarkable evolutionary strategy for packaging and protecting the genome, in a state ready for immediate transcription upon unwinding in the host cytoplasm. The parsimonious use of the same protein in two unrelated substructures of the virion is unexpected for a giant virus with thousand genes at its disposal.
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Affiliation(s)
| | - Alain Schmitt
- Aix-Marseille University, CNRS-AMU UMR7256, Marseille, France
| | | | | | | | - Audrey Lartigue
- Aix-Marseille University, CNRS-AMU UMR7256, Marseille, France
| | - Vojtěch Pražák
- Centre for Structural Systems Biology, University of Hamburg, Hamburg, Germany
| | - Lucid Belmudes
- Institut de Biosciences et Biotechnologies de Grenoble, Université Grenoble Alpes, Grenoble, France
| | - Daven Vasishtan
- Centre for Structural Systems Biology, University of Hamburg, Hamburg, Germany
| | | | - Flora A Honoré
- Aix-Marseille University, CNRS-AMU UMR7256, Marseille, France
| | - Yohann Couté
- Institut de Biosciences et Biotechnologies de Grenoble, Université Grenoble Alpes, Grenoble, France
| | - Kay Grünewald
- Centre for Structural Systems Biology, University of Hamburg, Hamburg, Germany
| | - Chantal Abergel
- Aix-Marseille University, CNRS-AMU UMR7256, Marseille, France
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Maurus I, Röll L, Keeser D, Schmitt A, Hasan A, Hirjak D, Meyer-Lindenberg A, Falkai P. Effects of Exercise in People with Severe Mental Illness and Recommendations for its Implementation as Add-on Therapy. Eur Psychiatry 2022. [PMCID: PMC9567411 DOI: 10.1192/j.eurpsy.2022.80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
There are many reasons for people with (and without) severe mental illness to exercise regularly. In people with schizophrenia, major depression and bipolar disorder, it has already been shown that regular physical activity as an add-on therapy can improve quality of life and symptom severity. This is particularly important in domains that standard therapy is currently not able to treat sufficiently, such as cognitive deficits. Postulated underlying neurobiological effects include increased volume in hippocampal areas as demonstrated by data of a current clinical trial in people with schizophrenia. Furthermore, regular exercise is essential to counteract the increased cardiovascular morbidity and mortality of people with severe mental illness. However, most people with severe mental illness do not achieve the recommended amount of physical activity and the potential of exercise as an add-on therapy is currently not even close to being fully realized. On the one hand, it is important that mental health staff also considers the physical condition of patients with mental illnesses and counsels them on their health behavior. On the other hand, there is a need for individually adapted training programs delivered by qualified exercise professionals that incorporate motivational and adherence strategies. Examples of barriers and facilitators for the implementation of exercise as an add-on therapy are discussed on the basis of current local projects.
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Antunes M, Schmitt A, Pasqual Marques A. AB1539-HPR AMIGOS DE FIBRO (FIBRO FRIENDS): VALIDATION OF AN EDUCATIONAL E-BOOK TO PROMOTE THE HEALTH OF PEOPLE LIVING WITH FIBROMYALGIA IN BRAZIL. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundIn the optimal treatment of fibromyalgia, international recommendations highlight non-pharmacological treatment as the key to success. Health education is one of the main tools to promote the health of patients with fibromyalgia. Educational strategies are essential for the care of patients with fibromyalgia.ObjectivesDevelop and validate an e-book to promote the health of people with fibromyalgia who live in Brazil.MethodsThis is a methodological study, initially, through a bibliographic survey, the available publications on the subject were analyzed. Then, this knowledge was used to build the theoretical content addressed and the art and layout of the e-book was elaborated. Finally, the validation of the constructed material was carried out with three groups of specialists: content specialists (n=23), technicians (n=23) and design specialists (n=23). In addition, it was also decided to validate the e-book with individuals who have fibromyalgia (n=45. The e-book was evaluated by specific instruments through the Delphi technique. The data were analyzed, and the reliability was evaluated by the Alpha of Cronbach (αC) and agreement, using the Content Validity Index (CVI).ResultsIn the global evaluation, all the judges agreed with the items evaluated in the e-book, presented a considerable minimum of the CVI, being: content (0.79), technical (0.89), design (0.92), and target audience (0.97). Regarding reliability, all groups also had an αC within the acceptable range: content (0.960), technical (0.963), design (0.977), and target audience (1.08).ConclusionE-book was prepared and validated in terms of content and relevance, and can be used in Brazil to promote the health of individuals with fibromyalgia, mainly as a complement to treatments already carried out for fibromyalgia. In the future, this e-book may be translated and adapted into new languages.References[1]Antunes M, Schmitt A, Marques AP. Ab0912-hpr Amigos de Fibro (Fibro Friends): educational program to promote the health of people with fibromyalgia in Brazil. 2021; Annals of the Rheumatic Diseases 2021;80:1478.[2]Antunes MD, Couto LA, Bertolini SMMG, Rocha Loures FCN, Schmitt ACB, Marques AP. of interdisciplinary health education programs for individuals with fibromyalgia: A systematic review. Journal of Education and Health Promotion. 2021;10(64):1-8. Doi: https://dx.doi.org/10.4103%2Fjehp.jehp_592_20.[3]García-Ríos MC, Navarro-Ledesma S, Tapia-Haro RM, Toledano-Moreno S, Casas-Barragán A, Correa-Rodríguez M, et al. Effectiveness of health education in patients with fibromyalgia: a systematic review. European Journal of Physical and Rehabilitation Medicine. 2019;55(2):301–13, 2019. Doi: https://doi.org/10.23736/S1973-9087.19.05524-2AcknowledgementsThis study was financed in part by the Coordenação deAperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001Disclosure of InterestsNone declared
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Antunes M, Schmitt A, Pasqual Marques A. AB1538-HPR AMIGOS DE FIBRO (FIBRO FRIENDS): VALIDATION OF AN EDUCATIONAL PROGRAM TO PROMOTE THE HEALTH OF PATIENTS WITH FIBROMYALGIA IN BRAZIL. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundHealth education is a very important tool in the treatment of people with fibromyalgia. Health education acts as an excellent non-pharmacological treatment to promote health in fibromyalgia.ObjectivesTo validate a multidisciplinary educational program to promote the health of people with fibromyalgia in Brazil, called Amigos de Fibro.MethodsThis is a methodological research with 45 individuals with fibromyalgia (target audience) and 23 health professionals (expert judges). Both groups used an instrument to assess the objectives, themes and proposed actions, relevance, writing style and structure of the program using the Delphi technique. The Content Validity Index (CVI) ≥ 0.78 and Kappa Coefficient ≥ 0.61 were used to analyze and validate the data.ResultsAll items evaluated in both groups had a considerable minimum CVI and Kappa Coefficient to be valid. In the global assessment of Amigos de Fibro, the CVI of the target audience judges was 0.95, while the expert judges presented a value of 0.90. The Kappa Coefficient of the target audience judges was 0.85 and that of the expert judges was 0.90. Therefore, the instrument proved to be validated.ConclusionAmigos de Fibro was considered valid for its content and internal consistency, therefore, valid to be used by health professionals with the target audience in Primary Health Care in Brazil, allowing them to act as promoters of their health.References[1]Antunes MD, Couto LA, Bertolini SMMG, Rocha Loures FCN, Schmitt ACB, Marques AP. of interdisciplinary health education programs for individuals with fibromyalgia: A systematic review. Journal of Education and Health Promotion. 2021;10(64):1-8. Doi: https://dx.doi.org/10.4103%2Fjehp.jehp_592_20[2]Antunes M, Schmitt A, Marques AP. Ab0912-hpr Amigos de Fibro (Fibro Friends): educational program to promote the health of people with fibromyalgia in Brazil. 2021; Annals of the Rheumatic Diseases 2021;80:1478.[3]García-Ríos MC, Navarro-Ledesma S, Tapia-Haro RM, Toledano-Moreno S, Casas-Barragán A, Correa-Rodríguez M, et al. Effectiveness of health education in patients with fibromyalgia: a systematic review. European Journal of Physical and Rehabilitation Medicine. 2019;55(2):301–13, 2019. Doi: https://doi.org/10.23736/S1973-9087.19.05524-2AcknowledgementsThis study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001Disclosure of InterestsNone declared
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Geirhos A, Stephan M, Wehrle M, Mack C, Messner EM, Schmitt A, Baumeister H, Terhorst Y, Sander LB. Standardized evaluation of the quality and persuasiveness of mobile health applications for diabetes management. Sci Rep 2022; 12:3639. [PMID: 35256661 PMCID: PMC8901695 DOI: 10.1038/s41598-022-07544-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 11/09/2021] [Accepted: 02/02/2022] [Indexed: 11/08/2022] Open
Abstract
This study evaluates diabetes self-management mobile health applications available from European app stores with respect to quality, concordance with recommended self-management tasks and implementation of persuasive system design principles. The European Play Store and Apple App Store were systematically searched and relevant apps were tested. Two raters independently assessed app quality using the Mobile Application Rating Scale and conducted a content analysis of provided persuasive system design principles and self-management tasks. A total of 2,269 mobile health applications were identified and 120 could be included in the evaluation. The overall quality was rated as moderate M = 3.20 (SD = 0.39, min = 2.31, max = 4.62), with shortcomings in the subcategories of engagement (M = 2.80, SD = 0.67) and information quality (M = 2.26, SD = 0.48). Scientific evidence is available for 8% of the apps. The reviewed apps implemented a median of three persuasive system design principles (range 0-15) and targeted a median of 4.5 (range 1-8) self-management tasks, however, with a lack of information about psychosocial coping strategies. Most available diabetes self-management apps lack a scientific evidence base. Persuasive system design features are underrepresented and may form a promising tool to improve app quality. Furthermore, the interaction of physical and behavioral health should be improved in existing diabetes self-management mobile health applications.
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Affiliation(s)
- A Geirhos
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology and Education, Faculty of Engineering, Computer Science and Psychology, Ulm University, Ulm, Germany
| | - M Stephan
- Department of Rehabilitation Psychology and Psychotherapy, Albert-Ludwigs University Freiburg, Freiburg, Germany
| | - M Wehrle
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology and Education, Faculty of Engineering, Computer Science and Psychology, Ulm University, Ulm, Germany
| | - C Mack
- Department of Rehabilitation Psychology and Psychotherapy, Albert-Ludwigs University Freiburg, Freiburg, Germany
| | - E-M Messner
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology and Education, Faculty of Engineering, Computer Science and Psychology, Ulm University, Ulm, Germany
| | - A Schmitt
- Research Institute of the Diabetes Academy Mergentheim, Diabetes Center Mergentheim (DZM), Bad Mergentheim, Germany
| | - H Baumeister
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology and Education, Faculty of Engineering, Computer Science and Psychology, Ulm University, Ulm, Germany
| | - Y Terhorst
- Department of Clinical Psychology and Psychotherapy, Institute of Psychology and Education, Faculty of Engineering, Computer Science and Psychology, Ulm University, Ulm, Germany
| | - L B Sander
- Department of Rehabilitation Psychology and Psychotherapy, Albert-Ludwigs University Freiburg, Freiburg, Germany.
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Royer-Garabige V, Schmitt A, Milder M, Vansteene D, Marchal T. Alimentation thérapeutique à l’hôpital : évaluation des connaissances des soignants et application dans les Centres de Lutte Contre le Cancer (CLCC) en France. NUTR CLIN METAB 2022. [DOI: 10.1016/j.nupar.2021.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Samuel E, Rologi E, Fraser H, Sassi M, Pruchniak M, Kotsiou E, Robinson J, Benzekhroufa K, Goodsell L, Carolan C, Saggese M, Grant M, Samways B, Kotecha P, Schmitt A, Lawrence D, Forster M, Turajlic S, Lowdell M, Quezada S. 58P Validation of the Achilles VELOS process 2 manufacturing platform for the treatment of solid cancer: GMP scale runs generate a significant dose boost of highly potent clonal neoantigen reactive T-cells. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Shamseddine A, Patel S, Socci N, Chavez V, Schmitt A. Identification of a Novel cGas/STING/Type I Interferon Specific Murine Cardiac Immune Landscape Following Radiation Therapy. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ebrahimi S, Patel S, McGee L, Garcia J, Ma D, Foote R, Garces Y, Neben Wittich M, Price K, Schmitt A, Zhai Q, May B, Nagel T, Hinni M, Routman D, Chintakuntlawar A, Rwigema J. Clinical Outcomes of Histologically Verified Salivary Ductal Carcinomas: Retrospective Analysis of 89 Patients Treated Over 47 Years. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Moore Z, Patel S, Adnan M, Chavez V, Lekaye C, Shamseddine A, Chan A, Veeraraghavan H, Schmitt A. MRI Radiomic Features of Radiation Induced Cardiac Toxicity and the Effects of c-GAS/STING Signaling. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ferreux L, Bourdon M, Chargui A, Schmitt A, Stouvenel L, Lorès P, Ray P, Lousqui J, Pocate-Cheriet K, Santulli P, Dulioust E, Toure A, Patrat C. Genetic diagnosis, sperm phenotype and ICSI outcome in case of severe asthenozoospermia with multiple morphological abnormalities of the flagellum. Hum Reprod 2021; 36:2848-2860. [PMID: 34529793 DOI: 10.1093/humrep/deab200] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 03/09/2021] [Revised: 08/11/2021] [Indexed: 01/13/2023] Open
Abstract
STUDY QUESTION Are ICSI outcomes impaired in cases of severe asthenozoospermia with multiple morphological abnormalities of the flagellum (MMAF phenotype)? SUMMARY ANSWER Despite occasional technical difficulties, ICSI outcomes for couples with MMAF do not differ from those of other couples requiring ICSI, irrespective of the genetic defect. WHAT IS KNOWN ALREADY Severe asthenozoospermia, especially when associated with the MMAF phenotype, results in male infertility. Recent findings have confirmed that a genetic aetiology is frequently responsible for this phenotype. In such situations, pregnancies can be achieved using ICSI. However, few studies to date have provided detailed analyses regarding the flagellar ultrastructural defects underlying this phenotype, its genetic aetiologies, and the results of ICSI in such cases of male infertility. STUDY DESIGN, SIZE, DURATION We performed a retrospective study of 25 infertile men exhibiting severe asthenozoospermia associated with the MMAF phenotype identified through standard semen analysis. They were recruited at an academic centre for assisted reproduction in Paris (France) between 2009 and 2017. Transmission electron microscopy (TEM) and whole exome sequencing (WES) were performed in order to determine the sperm ultrastructural phenotype and the causal mutations, respectively. Finally 20 couples with MMAF were treated by assisted reproductive technologies based on ICSI. PARTICIPANTS/MATERIALS, SETTING, METHODS Patients with MMAF were recruited based on reduced sperm progressive motility and increased frequencies of absent, short, coiled or irregular flagella compared with those in sperm from fertile control men. A quantitative analysis of the several ultrastructural defects was performed for the MMAF patients and for fertile men. The ICSI results obtained for 20 couples with MMAF were compared to those of 378 men with oligoasthenoteratozoospermia but no MMAF as an ICSI control group. MAIN RESULTS AND THE ROLE OF CHANCE TEM analysis and categorisation of the flagellar anomalies found in these patients provided important information regarding the structural defects underlying asthenozoospermia and sperm tail abnormalities. In particular, the absence of the central pair of axonemal microtubules was the predominant anomaly observed more frequently than in control sperm (P < 0.01). Exome sequencing, performed for 24 of the 25 patients, identified homozygous or compound heterozygous pathogenic mutations in CFAP43, CFAP44, CFAP69, DNAH1, DNAH8, AK7, TTC29 and MAATS1 in 13 patients (54.2%) (11 affecting MMAF genes and 2 affecting primary ciliary dyskinesia (PCD)-associated genes). A total of 40 ICSI cycles were undertaken for 20 MMAF couples, including 13 cycles (for 5 couples) where a hypo-osmotic swelling (HOS) test was required due to absolute asthenozoospermia. The fertilisation rate was not statistically different between the MMAF (65.7%) and the non-MMAF (66.0%) couples and it did not differ according to the genotype or the flagellar phenotype of the subjects or use of the HOS test. The clinical pregnancy rate per embryo transfer did not differ significantly between the MMAF (23.3%) and the non-MMAF (37.1%) groups. To date, 7 of the 20 MMAF couples have achieved a live birth from the ICSI attempts, with 11 babies born without any birth defects. LIMITATIONS, REASONS FOR CAUTION The ICSI procedure outcomes were assessed retrospectively on a small number of affected subjects and should be confirmed on a larger cohort. Moreover, TEM analysis could not be performed for all patients due to low sperm concentrations, and WES results are not yet available for all of the included men. WIDER IMPLICATIONS OF THE FINDINGS An early and extensive phenotypic and genetic investigation should be considered for all men requiring ICSI for severe asthenozoospermia. Although our study did not reveal any adverse ICSI outcomes associated with MMAF, we cannot rule out that some rare genetic causes could result in low fertilisation or pregnancy rates. STUDY FUNDING/COMPETING INTEREST(S) No external funding was used for this study and there are no competing interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Lucile Ferreux
- Assistance Publique-Hôpitaux de Paris (AP-HP), Centre-Université de Paris, Hôpital Cochin, Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - Mathilde Bourdon
- Assistance Publique-Hôpitaux de Paris (AP-HP), Centre-Université de Paris, Hôpital Cochin, Service de Gynécologie-Obstétrique II et de Médecine de la Reproduction, Paris, France
| | - Ahmed Chargui
- Assistance Publique-Hôpitaux de Paris (AP-HP), Centre-Université de Paris, Hôpital Cochin, Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - Alain Schmitt
- Université de Paris, Institut Cochin, U1016, INSERM, CNRS, Paris, France
| | - Laurence Stouvenel
- Université de Paris, Institut Cochin, U1016, INSERM, CNRS, Paris, France
| | - Patrick Lorès
- Université de Paris, Institut Cochin, U1016, INSERM, CNRS, Paris, France
| | - Pierre Ray
- Université Grenoble Alpes, Institut pour l'avancée des Biosciences, INSERM, CNRS, Grenoble, France
| | - Johanna Lousqui
- APHP.nord-Université de Paris, Hôpital Bichat, Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - Khaled Pocate-Cheriet
- Assistance Publique-Hôpitaux de Paris (AP-HP), Centre-Université de Paris, Hôpital Cochin, Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - Pietro Santulli
- Assistance Publique-Hôpitaux de Paris (AP-HP), Centre-Université de Paris, Hôpital Cochin, Service de Gynécologie-Obstétrique II et de Médecine de la Reproduction, Paris, France
| | - Emmanuel Dulioust
- Assistance Publique-Hôpitaux de Paris (AP-HP), Centre-Université de Paris, Hôpital Cochin, Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France.,Université de Paris, Institut Cochin, U1016, INSERM, CNRS, Paris, France
| | - Aminata Toure
- Université Grenoble Alpes, Institut pour l'avancée des Biosciences, INSERM, CNRS, Grenoble, France
| | - Catherine Patrat
- Assistance Publique-Hôpitaux de Paris (AP-HP), Centre-Université de Paris, Hôpital Cochin, Service d'Histologie-Embryologie-Biologie de la Reproduction, Paris, France.,Université de Paris, Institut Cochin, U1016, INSERM, CNRS, Paris, France
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Dufour J, Choquet S, Schmitt A, Ahle G, Houot R, Taillandier L, Ursu R, Hoang-Xuan K, Soussain C, Houillier C. P14.48 Extracerebral relapses of primary CNS lymphoma (PCNSL): a LOC network retrospective study. Neuro Oncol 2021. [DOI: 10.1093/neuonc/noab180.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Classically PCNSL remain confined within the CNS throughout their evolution for reasons still unknown (> 80% cerebral relapses). The aim of this study was to describe the characteristics and outcomes of the rare extracerebral relapses of PCNSL.
MATERIAL AND METHODS
This is a multicenter, retrospective study. We included all immunocompetent patients newly diagnosed with diffuse large B-cell PCNSL registered in the national LOC network database since 2010 and followed prospectively, who presented an extracerebral relapse, pure (extracerebral only site) or associated with concomitant CNS relapse (mixed). All had body scan and/or TEP -CT at diagnosis work up.
RESULTS
Of the 1968 PCNSL included in the database, 29 (1.5%) patients presented a systemic relapse [median age 71 years, median KPS 70% at relapse], either pure (n=19) or mixed (n=10), with a histological confirmation in 19 cases (66%). The median delay between initial diagnosis and systemic relapse was 15 months [2–49 months], with 5 very early relapses (<8 months) and 10 late relapses (>21 months). 27 patients had symptoms, 21 related to the location of relapse and 6 with only general symptoms. The localization was thoracic (n=11), abdominal/pelvic (n=14), head/neck (n=6) and limbs (n=9). We found visceral (n=24, 83%), including testis in 5 (28%) men and breast in 3 (27%) women, lymph node (n=12, 41%) and peripheral nervous system (PNS) (n=8, 28%; 4 plexus and 4 extradural roots) involvement. 27 patients were treated with chemotherapy, either with only systemic target (n=8) (R-CHOP alone) or mixed systemic and CNS target (n=19) (R-CHOP-MTX, R-ICE, GEMOX, RDHAC) and consolidated by high-dose chemotherapy with autologous stem cell transplantation (HCT-ASCT) in 4 cases [median age 55 years, median KPS 80%], with 34% of complete response. After systemic relapse, median progression-free survival was 8 months and overall survival (OS) was 9 months, 15 months for pure systemic and 4.5 months for mixed relapses. KPS>70%, pure systemic relapses and complete response were significantly associated with higher OS in univariate analysis.
CONCLUSION
Extracerebral PCNSL relapses are very rare, mainly extranodal and involve a large spectrum of anatomical sites, the most frequent being testis, breast and PNS. Prognosis was worse in case of mixed relapse than in pure systemic relapse that was similar to non PCNSL lymphomas. Very early relapses raise the question of misdiagnosed occult extracerebral lymphoma at diagnostic work up that should include systematically a FDG PET-CT. More studies are needed to refine their treatment and to specify the role of HCT-ASCT. Paired tumor tissues at diagnosis (CNS)/relapse (extracerebral) analysis would provide a better understanding of underlying molecular mechanisms.
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Affiliation(s)
- J Dufour
- Hôpital Pitié-Salpêtriere, Paris, France
| | - S Choquet
- Hôpital Pitié-Salpêtriere, Paris, France
| | - A Schmitt
- Institut de Bergonie, Bordeaux, France
| | - G Ahle
- Centre hospitalier de Colmar, Colmar, France
| | - R Houot
- Hôpital Universitaire de Rennes, Rennes, France
| | | | - R Ursu
- Hôpital Saint-Louis, Paris, France
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28
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Vignier N, Chatzifrangkeskou M, Pinton L, Wioland H, Marais T, Lemaitre M, Le Dour C, Peccate C, Cardoso D, Schmitt A, Wu W, Biferi MG, Naouar N, Macquart C, Beuvin M, Decostre V, Bonne G, Romet-Lemonne G, Worman HJ, Tedesco FS, Jégou A, Muchir A. The non-muscle ADF/cofilin-1 controls sarcomeric actin filament integrity and force production in striated muscle laminopathies. Cell Rep 2021; 36:109601. [PMID: 34433058 PMCID: PMC8411111 DOI: 10.1016/j.celrep.2021.109601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/09/2021] [Accepted: 08/04/2021] [Indexed: 12/11/2022] Open
Abstract
Cofilins are important for the regulation of the actin cytoskeleton, sarcomere organization, and force production. The role of cofilin-1, the non-muscle-specific isoform, in muscle function remains unclear. Mutations in LMNA encoding A-type lamins, intermediate filament proteins of the nuclear envelope, cause autosomal Emery-Dreifuss muscular dystrophy (EDMD). Here, we report increased cofilin-1 expression in LMNA mutant muscle cells caused by the inability of proteasome degradation, suggesting a protective role by ERK1/2. It is known that phosphorylated ERK1/2 directly binds to and catalyzes phosphorylation of the actin-depolymerizing factor cofilin-1 on Thr25. In vivo ectopic expression of cofilin-1, as well as its phosphorylated form on Thr25, impairs sarcomere structure and force generation. These findings present a mechanism that provides insight into the molecular pathogenesis of muscular dystrophies caused by LMNA mutations.
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Affiliation(s)
- Nicolas Vignier
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Maria Chatzifrangkeskou
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Luca Pinton
- Department of Cell and Developmental Biology, University College London, London, UK; Randall Centre for Cell and Molecular Biophysics, King's College London, London, UK
| | - Hugo Wioland
- Université de Paris, CNRS, Institut Jacques Monod, 75013 Paris, France
| | - Thibaut Marais
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Mégane Lemaitre
- Sorbonne Université, UMS28, Phénotypage du Petit Animal, Paris, France
| | - Caroline Le Dour
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Cécile Peccate
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Déborah Cardoso
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Alain Schmitt
- Université de Paris, INSERM, CNRS, Institut Cochin, 75005 Paris, France
| | - Wei Wu
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA; Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Maria-Grazia Biferi
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Naïra Naouar
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Coline Macquart
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Maud Beuvin
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Valérie Decostre
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | - Gisèle Bonne
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France
| | | | - Howard J Worman
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA; Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Francesco Saverio Tedesco
- Department of Cell and Developmental Biology, University College London, London, UK; Dubowitz Neuromuscular Centre, UCL Great Ormond Street Institute of Child Health and Great Ormond Street Hospital for Children, London, UK; The Francis Crick Institute, London, UK
| | - Antoine Jégou
- Université de Paris, CNRS, Institut Jacques Monod, 75013 Paris, France
| | - Antoine Muchir
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, 75013 Paris, France.
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29
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Ferreux L, Bourdon M, Chargui A, Schmitt A, Stouvenel L, Lorès P, Ray P, Lousqui J, Pocate K, Santulli P, Dulioust E, Toure A, Patrat C. O-092 Sperm phenotype, ICSI outcome and genetic diagnosis in case of severe asthenozoospermia with multiple morphological abnormalities of the flagellum. Hum Reprod 2021. [DOI: 10.1093/humrep/deab125.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
What are the feasibility and outcome of ICSI in case of presumably genetic severe asthenozoospermia with Multiple Morphological Abnormalities of the Flagellum (MMAF phenotype)?
Summary answer
ICSI outcome for couples with MMAF phenotype does not differ from that of other couples requiring ICSI, regardless to the genetic etiology
What is known already
Severe asthenozoospermia, especially when associated with multiple morphological abnormalities of the sperm flagellum (MMAF phenotype), results in male infertility. Recent findings confirm that a genetic etiology is frequently responsible for this phenotype. In such situations, pregnancies can be obtained using ICSI. However, few studies have provided detailed analyses of the flagellar ultrastructural defects underlying this phenotype, of its genetic etiologies and of the results of ICSI in such cases of male infertility.
Study design, size, duration
We performed a retrospective study including 25 infertile men showing severe asthenozoospermia associated with a MMAF phenotype identified through standard semen analysis. These men were recruited from an academic center for Assisted Reproduction in Paris between 2009 and 2017. Transmission electron microscopy (TEM) and Whole Exome Sequencing (WES) were performed in order to precise the sperm ultra-structural phenotype and identify causal mutations, respectively. Twenty of the 25 patients benefited from assisted reproductive therapy by ICSI.
Participants/materials, setting, methods
MMAF patients were recruited based on reduced sperm progressive motility and increased frequencies of absent, short, coiled or irregular flagella, in comparison with fertile control men. A quantified analysis of the ultrastructural defects was performed for the MMAF patients and for fertile control men. ICSI results for the MMAF patients were compared to those of 528 ICSI attempts performed for non-MMAF individuals considering the sperm parameters and the distribution of ultrastructural axonemal anomalies.
Main results and the role of chance
Thorough categorization by TEM analysis of the flagellar anomalies found in these patients brought important precisions about the structural defects underlying asthenozoospermia and sperm tail abnormalities detectable through standard microscopy. In particular, absence of the central pair of axonemal microtubules was the predominant anomaly, observed significantly more frequently than in control men (p < 0.01). Exome sequencing performed for 24 of the 25 patients (96%), identified in ten of them homozygous or compound heterozygous mutations that were described to be pathogenic (CFAP43, CFAP44, CFAP69, DNAH1, DNAH8, AK7, TTC29, MAATS1). A majority of those patients (55.5%,5/9) displayed the most severe ultra-structural defects of the axoneme. Forty ICSI attempts were performed for 20 MMAF patients. A hypo-osmotic swelling (HOS) test was required in 13 cycles (5 couples). Fertilization rate in MMAF group (65.7%) was not statistically different from the rate obtained for non-MMAF patients (66.0%) and did not differ according to the flagellar phenotype, nor to the use of HOS test, nor to the genotype. Clinical pregnancy rate per embryo transfer did not significantly differ between the MMAF group (23.3%) and the ICSI control group (37.1%). To date, 11 healthy babies were born among 20 MMAF patients.
Limitations, reasons for caution
The outcome of ICSI procedure was retrospectively assessed on a small sample and may be susceptible to recall bias. Moreover, TEM analysis was not available for some of the patients due to too low sperm concentration, and WES results are not yet available for all men included.
Wider implications of the findings
Couples requiring ICSI for presumably genetic severe asthenozoospermia should benefit precociously from appropriate phenotypic and genetic investigations. So far ICSI results appear similar to those observed in other ICSI indications. Identifying a genetic etiology and its mode of inheritance allows providing to these couples a most often reassuring genetic counseling.
Trial registration number
Not applicable
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Affiliation(s)
- L Ferreux
- Assistance Publique – Hôpitaux de Paris AP- HP- APHP. Centre – Université de Paris- Hôpital Cochin, Service d’Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - M Bourdon
- Assistance Publique–Hôpitaux de Paris AP–HP- AP-HP.Centre – Université de Paris- Hôpital Cochin, Service de Gynécologie-Obstétrique II et de Médecine de la Reproduction, Paris, France
| | - A Chargui
- Assistance Publique – Hôpitaux de Paris AP- HP- APHP. Centre – Université de Paris- Hôpital Cochin, Service d’Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - A Schmitt
- Université de Paris- Institut Cochin, U1016- Inserm- cnrsS, Paris, France
| | - L Stouvenel
- Université de Paris- Institut Cochin, U1016- Inserm- cnrsS, Paris, France
| | - P Lorès
- Université de Paris- Institut Cochin, U1016- Inserm- cnrsS, Paris, France
| | - P Ray
- Université Grenoble Alpes- Institut pour l’avancée des Biosciences, Inserm- cnrs, Grenoble, France
| | - J Lousqui
- APHP.nord –Université de Paris- Hôpital Bichat, Service d’Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - K Pocate
- Assistance Publique – Hôpitaux de Paris AP- HP- APHP. Centre – Université de Paris- Hôpital Cochin, Service d’Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - P Santulli
- Assistance Publique–Hôpitaux de Paris AP–HP- AP-HP.Centre – Université de Paris- Hôpital Cochin, Service de Gynécologie-Obstétrique II et de Médecine de la Reproduction, Paris, France
| | - E Dulioust
- Assistance Publique – Hôpitaux de Paris AP- HP- APHP. Centre – Université de Paris- Hôpital Cochin, Service d’Histologie-Embryologie-Biologie de la Reproduction, Paris, France
| | - A Toure
- Université Grenoble Alpes- Institut pour l’avancée des Biosciences, Inserm- cnrs, Grenoble, France
| | - C Patrat
- Assistance Publique – Hôpitaux de Paris AP- HP- APHP. Centre – Université de Paris- Hôpital Cochin, Service d’Histologie-Embryologie-Biologie de la Reproduction, Paris, France
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Cheradame L, Guerrera IC, Gaston J, Schmitt A, Jung V, Pouillard M, Radosevic-Robin N, Modesti M, Judde JG, Goffin V, Cairo S. Abstract 2038: A non-canonical, cell-autonomous STING function protects breast cancer cells from intrinsic and genotoxic-induced DNA instability. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-2038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Several studies have recently indicated the activation of the immune system against tumor cells as well as the targeting of cancer cell DNA damage repair mechanisms as effective strategies to target tumor growth. STING is a well-known DNA sensor of innate immunity mostly characterized as a transmembrane protein of various cytoplasmic organelles that senses cytosolic DNA as a danger signal and triggers inflammatory responses. A current cancer immunotherapy strategy relies on the use of STING agonists to boost the patient's immune system through a cytokine-mediated recruitment of immune cells that infiltrate and kill tumor cells. However, the role of the STING pathway in cancer is far to be fully understood as there is otherwise accumulating evidence that activation of the cGAS-STING pathway can have a deleterious outcome. We recently showed that genotoxic treatment of breast cancer PDXs and cell lines triggered the STING pathway. Genetic inhibition of this pathway in MCF7 cells increased genotoxic treatment efficacy by promoting cell death and delaying cell colony regrowth, indicating that STING pathway intrinsically promotes cell resistance to treatment. In this study, we show that STING silencing decreased cell viability in a panel of classical or PDX-derived breast cancer cell lines irrespective of their ER status and of the genotoxic treatment received. Cell fractionation indicates that part of the STING pool intrinsically resides in the nucleus of various malignant and non-malignant cells. Fluorescence and electron microscopy show that STING partly resides at the inner membrane of the nucleus, and mass-spectrometry analysis revealed that STING interacts with core proteins of the non-homologous end joining (NHEJ) DNA damage repair (DDR) complex. STING promotes NEHJ-related protein assembly with chromatin, and its silencing decreases DDR and cell viability, while STING overexpression protects cancer cells from genotoxic treatment. STING involvement in DDR is independent of the classical STING-TBK1-IFN inflammatory response, thus identifying a new functional pathway for STING. STING nuclear localization was confirmed in a panel of breast cancer patient-derived xenografts and in surgical samples from breast cancer patients that received neoadjuvant chemotherapy. Evaluation of the impact of STING expression on patient outcome via the Kaplan Meier plotter show that overall STING expression level is positively correlated with favorable outcome in breast cancer patients, however high STING expression in breast and ovarian cancer patients treated with adjuvant chemotherapy is associated with poor prognosis. These findings place STING at the crossroad of DDR and immune surveillance, two major pathways for tumorigenesis and tumor survival.
Citation Format: Laura Cheradame, Ida Chiara Guerrera, Julie Gaston, Alain Schmitt, Vincent Jung, Marion Pouillard, Nina Radosevic-Robin, Mauro Modesti, Jean-Gabriel Judde, Vincent Goffin, Stefano Cairo. A non-canonical, cell-autonomous STING function protects breast cancer cells from intrinsic and genotoxic-induced DNA instability [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 2038.
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Affiliation(s)
| | - Ida Chiara Guerrera
- 2Proteomics Platform 3P5-Necker, Université Paris Descartes - Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | | | - Alain Schmitt
- 3Inserm U1016 and CNRS UMR8104, Paris Descartes University, Paris, France
| | - Vincent Jung
- 2Proteomics Platform 3P5-Necker, Université Paris Descartes - Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | - Marion Pouillard
- 4Université de Paris, INSERM U1151, CNRS UMR8253, Institut Necker Enfants Malades, Paris, France
| | - Nina Radosevic-Robin
- 5U1240 INSERM/University Clermont Auvergne, Centre Jean Perrin, Clermont Ferrand, France
| | - Mauro Modesti
- 3Inserm U1016 and CNRS UMR8104, Paris Descartes University, Paris, France
| | | | - Vincent Goffin
- 4Université de Paris, INSERM U1151, CNRS UMR8253, Institut Necker Enfants Malades, Paris, France
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31
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Batlevi CL, Salles G, Tilly H, Chaidos A, McKay P, Phillips T, Assouline S, Campbell P, Ribrag V, Damaj GL, Dickinson M, Jurczak W, Kaźmierczak M, Opat S, Radford JR, Schmitt A, Rajarethinam A, Shang G, Morschhauser F. CHARACTERISTICS OF PATIENTS ACHIEVING COMPLETE OR PARTIAL RESPONSE (CR/PR) WITH TAZEMETOSTAT (TAZ) IN WILD‐TYPE RELAPSED/REFRACTORY (R/R) FOLLICULAR LYMPHOMA (FL). Hematol Oncol 2021. [DOI: 10.1002/hon.21_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- C. L. Batlevi
- Memorial Sloan Kettering Cancer Center Lymphoma Service Department of Medicine New York USA
| | - G. Salles
- Lyon‐Sud Hospital University of Lyon Hematology Pierre‐Bénite France
| | - H. Tilly
- Centre Henri Becquerel and Rouen University Department of Haematology and INSERM U1245 Rouen France
| | - A. Chaidos
- Imperial College Healthcare NHS Trust Hammersmith Hospital Department of Medicine London UK
| | - P. McKay
- Beatson West of Scotland Cancer Centre Department of Hematology Glasgow UK
| | - T. Phillips
- University of Michigan Hematology and Oncology Ann Arbor USA
| | - S. Assouline
- Division of Hematology Sir Mortimer B. Davis‐Jewish General Hospital Oncology Montreal Canada
| | - P. Campbell
- Barwon Health University Hospital Geelong Department of Clinical Haematology Geelong Australia
| | - V. Ribrag
- Gustave Roussy Hematology Villejuif France
| | - G. Laurent Damaj
- Hematology Institute University Hospital School of Medicine Hematology Caen France
| | - M. Dickinson
- Peter MacCallum Cancer Centre Royal Melbourne Hospital Department of Clinical Haematology Melbourne Australia
| | - W. Jurczak
- Maria Sklodowska‐Curie National Research Institute of Oncology Department of Hematology Kraków Poland
| | - M. Kaźmierczak
- Poznań University of Medical Sciences Department of Hematology and Bone Marrow Transplantation Poznań Poland
| | - S. Opat
- Monash University Department of Haematology Victoria Australia
| | - J. R. Radford
- University of Manchester NIHR Manchester Clinical Research Facility Manchester Academic Health Science Centre The Christie NHS Foundation Trust Department of Medical Oncology Manchester UK
| | - A. Schmitt
- Institut Bergonié Department of Hematology Bordeaux France
| | | | - G. Shang
- Epizyme, Inc. Medical Affairs Cambridge USA
| | - F. Morschhauser
- Groupe de Recherche sur les formes Injectables et les Technologies Associées CHU de Lille Université de Lille Oncology Lille France
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Septans A, Dû K, Maloisel F, Vanquaethem H, Schmitt A, Goff M, Moles M, Zinger M, Bourgeois H, Peron M, Denis F, Bouchard S. A NEW OPTION IN PAIN PREVENTION WITH BLISS©, A DIGITAL THERAPEUTIC SOLUTION LEVERAGING VIRTUAL REALITY: RESULTS OF A FRENCH OPEN‐LABEL MULTICENTER RANDOMIZED PHASE III STUDY (REVEH TRIAL). Hematol Oncol 2021. [DOI: 10.1002/hon.102_2881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - K. Dû
- Confluent Private Hospital Hematology Nantes France
| | - F. Maloisel
- Clinique Saint‐Anne Hematology Strasbourg France
| | - H. Vanquaethem
- Hôpital dInstruction des Armées Bégin Médecin interne Saint Mande France
| | - A. Schmitt
- Institut Bergonié Hematology Bordeaux France
| | - M. Goff
- ILC Jean Bernard Hematology Le Mans France
| | | | - M. Zinger
- ILC Jean Bernard Onco‐hematoloogy Le Mans France
| | | | - M. Peron
- Effet Papillon Quality of Life Laval France
| | - F. Denis
- ILC Jean Bernard Onco‐hematology Le Mans France
| | - S. Bouchard
- Université du Québec en Outaouais Psychoeducation and Psychology Gatineau Canada
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Antunes M, Schmitt A, Pasqual Marques A. AB0912-HPR AMIGOS DE FIBRO (FIBRO FRIENDS): EDUCATIONAL PROGRAM TO PROMOTE THE HEALTH OF PEOPLE WITH FIBROMYALGIA IN BRAZIL. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Health education is pointed out as the front line in non-pharmacological approaches in fibromyalgia.Objectives:To develop an interdisciplinary educational program to promote the health of individuals with fibromyalgia in Brazil.Methods:This is a qualitative study, through a focus group, carried out in a Basic Health Unit in the city of São Paulo, SP. The guiding questions were about the needs and demands exposed by patients with fibromyalgia and health professionals who work in primary health care. 12 individuals with fibromyalgia and 10 health professionals participated. The data were analyzed using the content analysis method proposed by Bardin, specifically the thematic content analysis.Results:Amigos de Fibro (Fibro Friends) should be conducted through lectures, dynamics and conversation circles. The educational program must include 15 meetings with weekly frequency. The meetings are: 1st to present the program and socialization activities. 2nd: Doctor presents the concepts of fibromyalgia. 3rd: Nurse informs about practices and environments that favor self-care. 4th: Social Worker shows the importance of support. 5th: Physiotherapist shows the main body practices and physical activity. 6th: Nutritionist presents an adequate and healthy diet. 7: Psychologist shows mental health practices. 8th: Pharmacist informs about medicines. 9, 11 and 13: participants perform activities at home. 10: Naturologist presents integrative and complementary practices. 12th: Occupational Therapist encourages methods to save energy. Day 14: Speech therapist helps in the quality of sleep. 15: closing activity.Conclusion:Amigos de Fibro is a program that presents interdisciplinary educational information for individuals with fibromyalgia, being considered a trend of care for the future. The next step is to conduct a clinical trial to verify the effect of this intervention and then implement it in the health service in Brazil. Fibro Friends was created from the conjunct action of patients and healthcare professionals, it can be an effective educational tool to be implemented at primary health attention centers, promoting the self-care, life quality and the promotion of health in individuals with Fibromyalgia. Fibro Friends is an excellent tool for patient education and counseling in Brazil.References:[1]Antunes M, Ferreira A, Oliveira D, Júnior JN, Bertolini S, Marques AP. There is association between the level of physical activity and quality of life of women with fibromyalgia?. Annals of rheumatic diseases. 2019;78(2)650-1. http://dx.doi.org/10.1136/annrheumdis-2019-eular.2835.[2]García-Ríos MC, Navarro-Ledesma S, Tapia-Haro RM, Toledano-Moreno S, Casas-Barragán A, Correa-Rodríguez M et al. Effectiveness of health education in patients with fibromyalgia: a systematic review. European Journal of Physical and Rehabilitation Medicine. 2019;55(2):301-13. https://doi.org/10.23736/S1973-9087.19.05524-2.[3]Oliveira DV, Ferreira AAM, Oliveira DCD, Leme DEDC, Antunes MD, Nascimento Júnior JRAD. Association of the practice of physical activity and of health status on the quality of life of women with fibromyalgia. Journal of Physical Education. 2019;30(1): e3027. https://doi.org/10.4025/jphyseduc.v30i1.3027.[4]Stuifbergen AK, Blozis SA, Becker H, Phillips L, Timmerman G, Kullberg V, et al. A randomized controlled trial of a wellness intervention for women with fibromyalgia syndrome. Clinical Rehabilitation. 2010;24(4):305-18. https://doi.org/10.1177/0269215509343247.Acknowledgements:This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001.Disclosure of Interests:None declared
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Schmitt A, Reda M, Macaire P, Bellio H, Uwer L, Ilie S, Lorgis V, Hennequin A, Ladoire S, Rederstorff E, Fumoleau P, Isambert N, Bonnin N, You B, Freyer G, Desmoulins I. 147P When a single G-CSF administration is better than longer duration: Example in patients treated by eribulin. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Schmitt A, Cardinale C, Loundou A, Miquel L, Agostini A. Nitrous oxide for pain management of first-trimester instrumental termination of pregnancy under local anaesthesia and/or minimal sedation: A systematic review and meta-analysis. Eur J Obstet Gynecol Reprod Biol 2021; 261:193-199. [PMID: 33971381 DOI: 10.1016/j.ejogrb.2021.04.029] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/17/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Inhalation of nitrous oxide and oxygen (N2O/O2) is used to reduce pain that is spontaneous or induced by procedures. N2O/O2 could be useful in the treatment of the pain in first-trimester termination of pregnancy performed under local anaesthesia and/or minimal sedation (FTOPL). OBJECTIVE To evaluate the usefulness of N2O/O2 to reduce pain in FTOPL. SEARCH STRATEGY Electronic databases including PubMed, Embase, and MEDLINE were searched using keywords. STUDY SELECTION All studies comparing the use of N2O/O2 versus a placebo in the management of pain during FTOPL during the first trimester were included. Of the 199 studies identified, four were deemed eligible for this meta-analysis. DATA COLLECTION The extracted results were perioperative pain, immediate and delayed postoperative pain, anxiety scores, and the secondary effects (nausea, vomiting). The data were analysed using Comprehensive Meta-Analysis software version 2.2.064. MAIN RESULTS There was a significant difference in favour of N2O/O2 for perioperative pain (p = 0.006; SMD = - 0.31; 95 % CI, -0.54 - -0.09). No difference was found, however, in postoperative pain, nor was there a difference in the secondary effects (nausea, vomiting) (p = 0.61). A significant decrease in postoperative anxiety scores was seen in the pooled placebo group (p = 0.049; SMD = 0.41; and 95 % CI, 0.001-0.83). CONCLUSIONS N2O/O2 reduces the pain of FTOPL. N2O/O2 could be recommended in FTOPL.
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Affiliation(s)
- A Schmitt
- Division of Gynecology, Obstetrics, and Reproduction, Gynepôle, Hôpital de la Conception, Marseille, France
| | - C Cardinale
- Division of Gynecology, Obstetrics, and Reproduction, Gynepôle, Hôpital de la Conception, Marseille, France
| | - A Loundou
- Department of Public Health, Aix-Marseille University, Marseille, France
| | - L Miquel
- Division of Gynecology, Obstetrics, and Reproduction, Gynepôle, Hôpital de la Conception, Marseille, France
| | - A Agostini
- Division of Gynecology, Obstetrics, and Reproduction, Gynepôle, Hôpital de la Conception, Marseille, France.
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Underner M, Perriot J, Brousse G, de Chazeron I, Schmitt A, Peiffer G, Afshari R, Ebrahimighavam S, Jaafari N. [Contribution of electronic cigarettes in smoking patients with psychotic disorders. A literature review]. Encephale 2021; 47:452-460. [PMID: 33863511 DOI: 10.1016/j.encep.2020.11.008] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/09/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVES This systematic literature review focused on patients suffering from schizophrenia (SZ), psychotic disorders or mental illness (MI) including SZ. It was interested in data on prevalence of electronic cigarette (EC) use, patient perceptions and expectations, as well as caregivers' attitudes towards the EC and its benefit in helping to stop or reduce smoking. METHOD The research was carried out on Medline for the period 2000-2020. Cross-sectional, case-control, prospective, randomized controlled studies and preliminary studies were included in this review. RESULTS EC is widely used by MI patients with current and lifetime use from 7.4% to 28.6%. More specifically, patients with SZ and schizoaffective disorders observe current and lifetime use from 7% to 36%, respectively. Many reasons are given by patients for its use including the possibility of using it in places where smoking is prohibited, its lower toxicity compared to cigarettes for oneself and those around, its lower cost, and the help provided to reduce consumption. CONCLUSION EC is used by smokers with MI; several studies confirm the possibility for these smokers to reduce tobacco consumption through EC and without disturbing their mental state. However, its value in helping to quit smoking remains uncertain.
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Affiliation(s)
- M Underner
- Unité de recherche clinique Pierre-Deniker, centre hospitalier Henri-Laborit, université de Poitiers, 370, avenue Jacques-Cœur, CS 10587, 86021 Poitiers cedex, France.
| | - J Perriot
- Dispensaire Émile-Roux, centre de tabacologie, 63100 Clermont-Ferrand, France
| | - G Brousse
- Service de psychiatrie-addictologie, CMP-B CHU de Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - I de Chazeron
- Service de psychiatrie-addictologie, CMP-B CHU de Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - A Schmitt
- Service de psychiatrie-addictologie, CMP-B CHU de Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - G Peiffer
- Service de pneumologie, CHR Metz-Thionville, 57038 Metz, France
| | - R Afshari
- Unité de recherche clinique Pierre-Deniker, centre hospitalier Henri-Laborit, université de Poitiers, 370, avenue Jacques-Cœur, CS 10587, 86021 Poitiers cedex, France; Prevention of social harms and substance use disorders center, Shiraz university of medical sciences, Shiraz, Iran
| | - S Ebrahimighavam
- Unité de recherche clinique Pierre-Deniker, centre hospitalier Henri-Laborit, université de Poitiers, 370, avenue Jacques-Cœur, CS 10587, 86021 Poitiers cedex, France; Département de psychologie de l'éducation, faculté de psychologie et de sciences de l'éducation, université Allameh Tabataba'i, Téhéran, Iran
| | - N Jaafari
- Unité de recherche clinique Pierre-Deniker, centre hospitalier Henri-Laborit, université de Poitiers, 370, avenue Jacques-Cœur, CS 10587, 86021 Poitiers cedex, France
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Just PA, Charawi S, Denis RGP, Savall M, Traore M, Foretz M, Bastu S, Magassa S, Senni N, Sohier P, Wursmer M, Vasseur-Cognet M, Schmitt A, Le Gall M, Leduc M, Guillonneau F, De Bandt JP, Mayeux P, Romagnolo B, Luquet S, Bossard P, Perret C. Author Correction: Lkb1 suppresses amino acid-driven gluconeogenesis in the liver. Nat Commun 2021; 12:1831. [PMID: 33731695 PMCID: PMC7969603 DOI: 10.1038/s41467-021-22104-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Pierre-Alexandre Just
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,APHP, Centre-Université de Paris, Paris, France
| | - Sara Charawi
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Raphaël G P Denis
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Mathilde Savall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Massiré Traore
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Marc Foretz
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Sultan Bastu
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | | | - Nadia Senni
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Pierre Sohier
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Maud Wursmer
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Mireille Vasseur-Cognet
- UMR IRD 242, UPEC, CNRS 7618, UPMC 113, INRA 1392, Sorbonne Universités Paris and Institut d'Ecologie et des Sciences de l'Environnement de Paris, Bondy, France
| | - Alain Schmitt
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,Electron Miscroscopy Facility, Institut Cochin, F75014, Paris, France
| | - Morgane Le Gall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Marjorie Leduc
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - François Guillonneau
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | | | - Patrick Mayeux
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Béatrice Romagnolo
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Serge Luquet
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Pascale Bossard
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Christine Perret
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.
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Thomas F, Maillard M, Launay M, Tron C, Etienne-Grimaldi MC, Gautier-Veyret E, Haufroid V, Pallet N, Royer B, Narjoz C, Schmitt A. Artificial increase of uracilemia during fluoropyrimidine treatment can lead to DPD deficiency misinterpretation. Ann Oncol 2021; 32:810-811. [PMID: 33662499 DOI: 10.1016/j.annonc.2021.02.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 02/16/2021] [Indexed: 11/28/2022] Open
Affiliation(s)
- F Thomas
- Laboratory of Pharmacology, Claudius Regaud Institute, IUCT-O, Toulouse Cedex 09, France; Cancer Research Center of Toulouse, INSERM U1037/ERL5294 CNRS, Toulouse Cedex 01, France.
| | - M Maillard
- Laboratory of Pharmacology, Claudius Regaud Institute, IUCT-O, Toulouse Cedex 09, France; Cancer Research Center of Toulouse, INSERM U1037/ERL5294 CNRS, Toulouse Cedex 01, France
| | - M Launay
- Laboratory of Pharmacology and Toxicology, University Hospital Center of Saint-Etienne, Saint-Etienne Cedex 02, France
| | - C Tron
- Laboratory of Pharmacology, University Hospital Center of Rennes, Rennes Cedex 09, France
| | - M-C Etienne-Grimaldi
- Laboratory of Pharmacology, UPRC EA 7497, Cancer Center Antoine Lacassagne, Nice Cedex 02, France
| | - E Gautier-Veyret
- Laboratory of Pharmacology, Pharmacogenetics and Toxicology, Grenoble Alpes University Hospital Center of Grenoble, INSERM U1042, Grenoble Cedex 09, France; HP2 Laboratory, Grenoble Alpes University, INSERM U1042, Grenoble, France
| | - V Haufroid
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Clinical and Experimental Research Institute (IREC), Université catholique de Louvain, Brussels, Belgium; Clinical Chemistry Department, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - N Pallet
- Clinical Chemistry Department, Hôpital Européen Georges Pompidou, Assistance Publique-Hopitaux de Paris, Paris, France
| | - B Royer
- Laboratory of Clinical Pharmacology and Toxicology, University Hospital Center of Besançon, Besançon Cedex, France
| | - C Narjoz
- Clinical Chemistry Department, Hôpital Européen Georges Pompidou, Assistance Publique-Hopitaux de Paris, Paris, France
| | - A Schmitt
- Department of Pharmacy, Centre Georges-François Leclerc, Dijon, France; INSERM U1231, University of Burgundy, Dijon, France
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Levoux J, Prola A, Lafuste P, Gervais M, Chevallier N, Koumaiha Z, Kefi K, Braud L, Schmitt A, Yacia A, Schirmann A, Hersant B, Sid-Ahmed M, Ben Larbi S, Komrskova K, Rohlena J, Relaix F, Neuzil J, Rodriguez AM. Platelets facilitate the wound-healing capability of mesenchymal stem cells by mitochondrial transfer and metabolic reprogramming. Cell Metab 2021; 33:688-690. [PMID: 33657394 DOI: 10.1016/j.cmet.2021.02.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Levoux J, Prola A, Lafuste P, Gervais M, Chevallier N, Koumaiha Z, Kefi K, Braud L, Schmitt A, Yacia A, Schirmann A, Hersant B, Sid-Ahmed M, Ben Larbi S, Komrskova K, Rohlena J, Relaix F, Neuzil J, Rodriguez AM. Platelets Facilitate the Wound-Healing Capability of Mesenchymal Stem Cells by Mitochondrial Transfer and Metabolic Reprogramming. Cell Metab 2021; 33:283-299.e9. [PMID: 33400911 DOI: 10.1016/j.cmet.2020.12.006] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 07/31/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023]
Abstract
Platelets are known to enhance the wound-healing activity of mesenchymal stem cells (MSCs). However, the mechanism by which platelets improve the therapeutic potential of MSCs has not been elucidated. Here, we provide evidence that, upon their activation, platelets transfer respiratory-competent mitochondria to MSCs primarily via dynamin-dependent clathrin-mediated endocytosis. We found that this process enhances the therapeutic efficacy of MSCs following their engraftment in several mouse models of tissue injury, including full-thickness cutaneous wound and dystrophic skeletal muscle. By combining in vitro and in vivo experiments, we demonstrate that platelet-derived mitochondria promote the pro-angiogenic activity of MSCs via their metabolic remodeling. Notably, we show that activation of the de novo fatty acid synthesis pathway is required for increased secretion of pro-angiogenic factors by platelet-preconditioned MSCs. These results reveal a new mechanism by which platelets potentiate MSC properties and underline the importance of testing platelet mitochondria quality prior to their clinical use.
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Affiliation(s)
- Jennyfer Levoux
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France
| | - Alexandre Prola
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France; EnvA, IMRB, 94700 Maisons-Alfort, France
| | - Peggy Lafuste
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France
| | - Marianne Gervais
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France
| | - Nathalie Chevallier
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France; Etablissement Français du Sang, 94017, Créteil, France
| | - Zeynab Koumaiha
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France
| | - Kaouthar Kefi
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France
| | - Laura Braud
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France
| | - Alain Schmitt
- Université de Paris, Institut Cochin, INSERM, CNRS, 75014, Paris, France
| | - Azzedine Yacia
- Université de Paris, Institut Cochin, INSERM, CNRS, 75014, Paris, France
| | | | - Barbara Hersant
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France; AP-HP, Hôpital Henri Mondor, A. Chenevier, Service de chirurgie plastique et maxillo-faciale, Créteil, France
| | - Mounia Sid-Ahmed
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France; AP-HP, Hôpital Henri Mondor, A. Chenevier, Service de chirurgie plastique et maxillo-faciale, Créteil, France
| | - Sabrina Ben Larbi
- Institut NeuroMyoGène, Université Claude Bernard - Lyon 1, University Lyon, CNRS UMR 5310, INSERM U1217, Lyon, France
| | - Katerina Komrskova
- Institute of Biotechnology, Czech Academy of Sciences, 252 50 Prague-West, Prague, Czech Republic; Department of Zoology, Faculty of Science, Charles University, 128 44 Prague 2, Czech Republic
| | - Jakub Rohlena
- Institute of Biotechnology, Czech Academy of Sciences, 252 50 Prague-West, Prague, Czech Republic
| | - Frederic Relaix
- Université Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France; EnvA, IMRB, 94700 Maisons-Alfort, France; APHP, Hôpitaux Universitaires Henri Mondor & Centre de Référence des Maladies Neuromusculaires GNMH, 94000, Créteil, France
| | - Jiri Neuzil
- Institute of Biotechnology, Czech Academy of Sciences, 252 50 Prague-West, Prague, Czech Republic; School of Medical Science, Griffith University, Southport, QLD 4222, Australia
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Nano J, Carinci F, Okunade O, Whittaker S, Walbaum M, Barnard-Kelly K, Barthelmes D, Benson T, Calderon-Margalit R, Dennaoui J, Fraser S, Haig R, Hernández-Jimenéz S, Levitt N, Mbanya JC, Naqvi S, Peters AL, Peyrot M, Prabhaharan M, Pumerantz A, Raposo J, Santana M, Schmitt A, Skovlund SE, Garcia-Ulloa AC, Wee HL, Zaletel J, Massi-Benedetti M. A standard set of person-centred outcomes for diabetes mellitus: results of an international and unified approach. Diabet Med 2020; 37:2009-2018. [PMID: 32124488 DOI: 10.1111/dme.14286] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/26/2020] [Indexed: 02/06/2023]
Abstract
AIMS To select a core list of standard outcomes for diabetes to be routinely applied internationally, including patient-reported outcomes. METHODS We conducted a structured systematic review of outcome measures, focusing on adults with either type 1 or type 2 diabetes. This process was followed by a consensus-driven modified Delphi panel, including a multidisciplinary group of academics, health professionals and people with diabetes. External feedback to validate the set of outcome measures was sought from people with diabetes and health professionals. RESULTS The panel identified an essential set of clinical outcomes related to diabetes control, acute events, chronic complications, health service utilisation, and survival that can be measured using routine administrative data and/or clinical records. Three instruments were recommended for annual measurement of patient-reported outcome measures: the WHO Well-Being Index for psychological well-being; the depression module of the Patient Health Questionnaire for depression; and the Problem Areas in Diabetes scale for diabetes distress. A range of factors related to demographic, diagnostic profile, lifestyle, social support and treatment of diabetes were also identified for case-mix adjustment. CONCLUSIONS We recommend the standard set identified in this study for use in routine practice to monitor, benchmark and improve diabetes care. The inclusion of patient-reported outcomes enables people living with diabetes to report directly on their condition in a structured way.
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Affiliation(s)
- J Nano
- Institute of Epidemiology, Helmholtz Zentrum-Munich, German Research Centre for Environmental Health, Munich, Germany
- German Centre for Diabetes Research, Munich, Germany
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - F Carinci
- Department of Statistical Sciences, University of Bologna, Bologna, Italy
| | - O Okunade
- International Consortium for Health Outcomes Measurement, Boston, MA, USA
| | - S Whittaker
- International Consortium for Health Outcomes Measurement, Boston, MA, USA
| | - M Walbaum
- Institute of Epidemiology, University College London, London, UK
| | | | - D Barthelmes
- Department of Ophthalmology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Save Sight Institute, University of Sydney, Sydney, Australia
| | - T Benson
- Patient member of the ICHOM diabetes Working Group, Jerusalem, Israel
- WHO Patients for Patient Safety Champion, Jerusalem, Israel
- Senior representative Consumers Health Forum of Australia, Jerusalem, Israel
- Senior Representative for Health Consumers Council of Western Australia, Jerusalem, Israel
| | | | - J Dennaoui
- National Health Insurance Company, Daman, United Arab Emirates, Belize
| | - S Fraser
- Belize Diabetes Association, Belize
| | - R Haig
- Patient member of the ICHOM diabetes Working Group, Jerusalem, Israel
| | - S Hernández-Jimenéz
- Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, México
| | - N Levitt
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - J C Mbanya
- Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - S Naqvi
- Imperial College London Diabetes Centre, Abu Dhabi, United Arab Emirates
| | - A L Peters
- Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - M Peyrot
- Loyola University Maryland, Baltimore, MD, USA
| | - M Prabhaharan
- Patient member of the ICHOM diabetes Working Group, Jerusalem, Israel
| | - A Pumerantz
- Department of Population Health, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California, United States
| | - J Raposo
- APDP-Diabetes Portugal and Nova Medical School, Lisbon, Portugal
| | - M Santana
- Cumming School of Medicine, Libin Cardiovascular Institute Alberta, Departments of Pediatrics and Community Health Sciences, Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - A Schmitt
- Diabetes Centre Mergentheim, Bad Mergentheim, Germany
| | - S E Skovlund
- Clinical Institute, Aalborg University, Aalborg, Denmark
- Steno Diabetes Centre North Denmark, Aalborg University Hospital, Aalborg, Denmark
| | - A C Garcia-Ulloa
- Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, México
| | - H-L Wee
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - J Zaletel
- National Institute of Public Health, Ljubljana, Slovenia
- University Medical Centre Ljubljana, Slovenia
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42
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Just PA, Charawi S, Denis RGP, Savall M, Traore M, Foretz M, Bastu S, Magassa S, Senni N, Sohier P, Wursmer M, Vasseur-Cognet M, Schmitt A, Le Gall M, Leduc M, Guillonneau F, De Bandt JP, Mayeux P, Romagnolo B, Luquet S, Bossard P, Perret C. Lkb1 suppresses amino acid-driven gluconeogenesis in the liver. Nat Commun 2020; 11:6127. [PMID: 33257663 PMCID: PMC7705018 DOI: 10.1038/s41467-020-19490-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 10/12/2020] [Indexed: 12/13/2022] Open
Abstract
Excessive glucose production by the liver is a key factor in the hyperglycemia observed in type 2 diabetes mellitus (T2DM). Here, we highlight a novel role of liver kinase B1 (Lkb1) in this regulation. We show that mice with a hepatocyte-specific deletion of Lkb1 have higher levels of hepatic amino acid catabolism, driving gluconeogenesis. This effect is observed during both fasting and the postprandial period, identifying Lkb1 as a critical suppressor of postprandial hepatic gluconeogenesis. Hepatic Lkb1 deletion is associated with major changes in whole-body metabolism, leading to a lower lean body mass and, in the longer term, sarcopenia and cachexia, as a consequence of the diversion of amino acids to liver metabolism at the expense of muscle. Using genetic, proteomic and pharmacological approaches, we identify the aminotransferases and specifically Agxt as effectors of the suppressor function of Lkb1 in amino acid-driven gluconeogenesis. Excessive glucose production by the liver contributes to poor blood glucose control in type 2 diabetes. Here the authors report that the liver kinase B1 (Lkb1) suppresses amino acid driven postprandial glucose production in the liver through the aminotransferase Agxt.
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Affiliation(s)
- Pierre-Alexandre Just
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,APHP, Centre-Université de Paris, Paris, France
| | - Sara Charawi
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Raphaël G P Denis
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Mathilde Savall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Massiré Traore
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Marc Foretz
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Sultan Bastu
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | | | - Nadia Senni
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Pierre Sohier
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Maud Wursmer
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Mireille Vasseur-Cognet
- UMR IRD 242, UPEC, CNRS 7618, UPMC 113, INRA 1392, Sorbonne Universités Paris and Institut d'Ecologie et des Sciences de l'Environnement de Paris, Bondy, France
| | - Alain Schmitt
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,Electron Miscroscopy Facility, Institut Cochin, F75014, Paris, France
| | - Morgane Le Gall
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Marjorie Leduc
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - François Guillonneau
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | | | - Patrick Mayeux
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.,3P5 proteom'IC Facility, Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Béatrice Romagnolo
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Serge Luquet
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, Unité Mixte de Recherche 8251, Université Paris Diderot, Sorbonne Paris Cité, 75205, Paris, France
| | - Pascale Bossard
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France
| | - Christine Perret
- Université de Paris, Institut Cochin, INSERM, CNRS, F75014, Paris, France.
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Jin C, Reiner A, Schmitt A, Higginson D, Laufer I, Lis E, Barzilai O, Boland P, Bilsky M, Yamada Y. PO-1236: Re-irradiation for recurrent spinal chordomas with high-dose stereotactic body radiation therapy. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01254-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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44
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Patel S, Chavez V, Adnan M, Chan A, Lekaye C, Piersigilli A, Schmitt A. Mitigation of Late Cardiac Toxicity following Radiotherapy through Abrogation of cGAS/STING-dependent Interferon (IFN). Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Moore Z, Shamseddine A, Lis E, Higginson D, Bilsky M, Barzilai O, Laufer I, Yamada Y, Schmitt A. Somatic Mutations in Colorectal Cancer Identify Patients at High-risk of Treatment Failure Following Low-BED Spine Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Schmitt A, Sory D, Tappert L, Lipinski P, Proud W, Baldit A. Dynamic characterisation of the temporomandibular joint disc using split Hopkinson pressure bars. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1815329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- A. Schmitt
- Department of Physics, Institute of Shock Physics, Imperial College London, London, UK
- ENIM, Université de Lorraine, Metz, France
| | - D. Sory
- Department of Physics, Institute of Shock Physics, Imperial College London, London, UK
- Faculty of Medicine, National Heart & Lung Institute, Imperial College London, London, UK
| | - L. Tappert
- LEM3-UMR-7239, CNRS - Université de Lorraine - Arts et Métiers ParisTech, Metz, France
| | - P. Lipinski
- LEM3-UMR-7239, CNRS - Université de Lorraine - Arts et Métiers ParisTech, Metz, France
| | - W. Proud
- Department of Physics, Institute of Shock Physics, Imperial College London, London, UK
| | - A. Baldit
- ENIM, Université de Lorraine, Metz, France
- LEM3-UMR-7239, CNRS - Université de Lorraine - Arts et Métiers ParisTech, Metz, France
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47
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Gloaguen C, Raimundo AF, Elie C, Schmitt A, Floriani M, Favard S, Monneret D, Imbert-Bismut F, Weiss N, Deli MA, Tack K, Lestaevel P, Benadjaoud MA, Legendre A. Passage of uranium through human cerebral microvascular endothelial cells: influence of time exposure in mono- and co-culture in vitro models. Int J Radiat Biol 2020; 96:1597-1607. [PMID: 32990492 DOI: 10.1080/09553002.2020.1828655] [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] [Indexed: 10/23/2022]
Abstract
PURPOSE Depleted uranium (DU) has several civilian and military applications. The effects of this emerging environmental pollutant on human health raise some concerns. Previous experimental studies have shown that uranium (U) exposure can disturb the central nervous system. A small quantity of U reaches the brain via the blood, but the effects on the blood-brain barrier (BBB) remain unclear. MATERIALS AND METHODS In the present work, two cell culture models were exposed to DU for different times to study its cytotoxicity, paracellular permeability and extracellular concentration of U. The well-known immortalized human cerebral microvascular endothelial cells, hCMEC/D3, were cultured on the filter in the first model. In the second model, human primary cells of pericytes were cultured under the filter to understand the influence of cell environment after U exposure. RESULTS The results show that U is not cytotoxic to hCMEC/D3 cells or pericytes until 500 µM (1.6 Bq.L-1). In addition, acute or chronic low-dose exposure of U did not disturb permeability and was conserved in both cell culture models. However, U is able to reach the brain compartment. During the first hours of exposure, the passage of U to the abluminal compartment was significantly reduced in the presence of pericytes. Electronic microscopy studies evidenced the formation of needlelike structures, like urchin-shaped precipitates, from 1 h of exposure. Analytical microscopy confirmed the U composition of these precipitates. Interestingly, precipitated U was detected only in endothelial cells and not in pericytes. U was localized in multilamellar or multivesicular bodies along the endo-lysosomal pathway, suggesting the involvement of these traffic vesicles in U sequestration and/or elimination. CONCLUSIONS We show for the first time the in vitro passage of U across a human cerebral microvascular endothelial cells, and the intracellular localization of U precipitates without any cytotoxicity or modification of paracellular permeability. The difference between the results obtained with monolayers and co-culture models with pericytes illustrates the need to use complex in vitro models in order to mimic the neurovascular unit. Further in vivo studies should be performed to better understand the passage of U across the blood-brain barrier potentially involved in behavioral consequences.
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Affiliation(s)
- C Gloaguen
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED, Fontenay aux Roses, France
| | - A F Raimundo
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED, Fontenay aux Roses, France
| | - C Elie
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED, Fontenay aux Roses, France
| | - A Schmitt
- Electronic Microscopy Facility, INSERM UMR 1016, Cochin Institute, Paris, France
| | - M Floriani
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO Saint Paul Lez Durance, France
| | - S Favard
- Department of Metabolic Biochemistry, La Pitié- Salpétrière- Charles Foix University Hospital (APHP), Paris, France
| | - D Monneret
- Department of Metabolic Biochemistry, La Pitié- Salpétrière- Charles Foix University Hospital (APHP), Paris, France
| | - F Imbert-Bismut
- Department of Metabolic Biochemistry, La Pitié- Salpétrière- Charles Foix University Hospital (APHP), Paris, France
| | - N Weiss
- Sorbonne Université, Brain Liver Pitié-Salpêtrière (BLIPS) Study Group, INSERM, Centre de Recherche Saint-Antoine, Assistance Publique - Hôpitaux de Paris, Groupement Hospitalier Pitié-Salpêtrière Charles Foix, Département de Neurologie, Unité de réanimation neurologique, Paris, France.,Unité de réanimation neurologique, Pôle des Maladies du Système Nerveux, Groupe Hospitalier Pitié-Salpêtrière Charles Foix, Assistance Publique - Hôpitaux de Paris, et Institut de Neurosciences Translationnelles IHU-A-ICM, Paris, France
| | - M A Deli
- Institute of Biophysics, Biological Research Centre, Hungarian Academy of Sciences, Szeged, Hungary
| | - K Tack
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED, Fontenay aux Roses, France
| | - P Lestaevel
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED, Fontenay aux Roses, France
| | - M A Benadjaoud
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED, Fontenay aux Roses, France
| | - A Legendre
- Institut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED, Fontenay aux Roses, France
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Abstract
Poorly differentiated thyroid carcinomas (PDTCs) are a rare subtype of thyroid carcinomas that are biologically situated between well-differentiated papillary/follicular thyroid carcinomas and anaplastic thyroid carcinomas (ATCs). The diagnosis of conventional as well as oncocytic poorly differentiated thyroid carcinoma is difficult and often missed in daily routine. The current WHO criteria to allow the diagnosis of PDTCs are based on the results of a consensus meeting held in Turin in 2006. Even a minor poorly differentiated component of only 10%of a given carcinoma significantly affects patient prognosis and the oncocytic subtype may even have a worse outcome. Immunohistochemistry is not much help and is mostly used to exclude a medullary thyroid carcinoma with calcitonin and to establish a follicular cell of origin via thyroglobulin staining. Due to the concept of stepwise dedifferentiation, there is a vast overlap of different molecular alterations like BRAF, RAS, CTNNB1, TP53 and others between different thyroid carcinoma subtypes. A distinctive molecular tumor profile is therefore currently not available. PDTCs have a unique miRNA signature, which separates them from other thyroid carcinomas. The average relapse free survival is less than one year and about 50% of patients die of the disease. Modern tyrosine kinase inhibitors offer in conjunction with powerful molecular diagnostic new chances in these difficult to treat carcinomas.
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Affiliation(s)
- M S Dettmer
- Institute of Pathology, University of Bern, Murtenstraße 31, 3010, Bern, Switzerland.
| | - A Schmitt
- Institute of Pathology, University of Bern, Murtenstraße 31, 3010, Bern, Switzerland
| | - P Komminoth
- Institute of Pathology, City Hospital Triemli, 8063, Zürich, Switzerland
| | - A Perren
- Institute of Pathology, University of Bern, Murtenstraße 31, 3010, Bern, Switzerland
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49
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Gombola C, Hasemann G, Kauffmann A, Sprenger I, Laube S, Schmitt A, Gang F, Bolbut V, Oehring M, Blankenburg M, Schell N, Staron P, Pyczak F, Krüger M, Heilmaier M. A zone melting device for the in situ observation of directional solidification using high-energy synchrotron x rays. Rev Sci Instrum 2020; 91:093901. [PMID: 33003800 DOI: 10.1063/5.0019020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/14/2020] [Indexed: 06/11/2023]
Abstract
Directional solidification (DS) is an established manufacturing process to produce high-performance components from metallic materials with optimized properties. Materials for demanding high-temperature applications, for instance in the energy generation and aircraft engine technology, can only be successfully produced using methods such as directional solidification. It has been applied on an industrial scale for a considerable amount of time, but advancing this method beyond the current applications is still challenging and almost exclusively limited to post-process characterization of the developed microstructures. For a knowledge-based advancement and a contribution to material innovation, in situ studies of the DS process are crucial using realistic sample sizes to ensure scalability of the results to industrial sizes. Therefore, a specially designed Flexible Directional Solidification (FlexiDS) device was developed for use at the P07 High Energy Materials Science beamline at PETRA III (Deutsches Elektronen-Synchrotron, Hamburg, Germany). In general, the process conditions of the crucible-free, inductively heated FlexiDS device can be varied from 6 mm/h to 12 000 mm/h (vertical withdrawal rate) and from 0 rpm to 35 rpm (axial sample rotation). Moreover, different atmospheres such as Ar, N2, and vacuum can be used during operation. The device is designed for maximum operation temperatures of 2200 °C. This unique device allows in situ examination of the directional solidification process and subsequent solid-state reactions by x-ray diffraction in the transmission mode. Within this project, different structural intermetallic alloys with liquidus temperatures up to 2000 °C were studied in terms of liquid-solid regions, transformations, and decompositions, with varying process conditions.
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Affiliation(s)
- C Gombola
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
| | - G Hasemann
- Otto von Guericke University, Institute for Materials and Joining Technology, Universitätsplatz 2, 39106 Magdeburg, Germany
| | - A Kauffmann
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
| | - I Sprenger
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
| | - S Laube
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
| | - A Schmitt
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
| | - F Gang
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
| | - V Bolbut
- Otto von Guericke University, Institute for Materials and Joining Technology, Universitätsplatz 2, 39106 Magdeburg, Germany
| | - M Oehring
- Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - M Blankenburg
- Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - N Schell
- Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - P Staron
- Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - F Pyczak
- Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - M Krüger
- Otto von Guericke University, Institute for Materials and Joining Technology, Universitätsplatz 2, 39106 Magdeburg, Germany
| | - M Heilmaier
- Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Str. 4, 76131 Karlsruhe, Germany
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50
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Joerger M, Metaxas Y, Schmitt A, Koeberle D, Zaman K, Betticher D, Mach N, Renner C, Mark M, Petrausch U, Caspar C, Britschgi C, Taverna C, Zenger F, Mingrone W, Schulz J, Kopp C, Hayoz S, Stathis A, von Moos R. LBA80 Outcome and prognostic factors of SARS CoV-2 infection in cancer patients: A cross-sectional study (SAKK 80/20 CaSA). Ann Oncol 2020. [PMCID: PMC7506361 DOI: 10.1016/j.annonc.2020.08.2321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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