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Brampton C, Pomozi V, Le Corre Y, Zoll J, Kauffenstein G, Ma C, Hoffmann PR, Martin L, Le Saux O. Bone Marrow-Derived ABCC6 Is an Essential Regulator of Ectopic Calcification In Pseudoxanthoma Elasticum. J Invest Dermatol 2024:S0022-202X(24)00110-6. [PMID: 38367909 DOI: 10.1016/j.jid.2024.01.026] [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: 10/30/2023] [Revised: 12/31/2023] [Accepted: 01/26/2024] [Indexed: 02/19/2024]
Abstract
Physiological calcification of soft tissues is a common occurrence in aging and various acquired and inherited disorders. ABCC6 sequence variations cause the calcification phenotype of pseudoxanthoma elasticum (PXE) as well as some cases of generalized arterial calcification of infancy, which is otherwise caused by defective ENPP1. ABCC6 is primarily expressed in the liver, which has given the impression that the liver is central to the pathophysiology of PXE/generalized arterial calcification of infancy. The emergence of inflammation as a contributor to the calcification in PXE suggested that peripheral tissues play a larger role than expected. In this study, we investigated whether bone marrow-derived ABCC6 contributes to the calcification in PXE. In Abcc6‒/‒ mice, we observed prevalent mineralization in several lymph nodes and surrounding connective tissues and an extensive network of lymphatic vessels within vibrissae, a calcified tissue in Abcc6‒/‒ mice. Furthermore, we found evidence of lymphangiogenesis in patients with PXE and mouse skin, suggesting an inflammatory process. Finally, restoring wild-type bone marrow in Abcc6‒/‒ mice produced a significant reduction of calcification, suggesting that the liver alone is not sufficient to fully inhibit mineralization. With evidence that ABCC6 is expressed in lymphocytes, we suggest that the adaptative immune system and inflammation largely contribute to the calcification in PXE/generalized arterial calcification of infancy.
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Affiliation(s)
- Christopher Brampton
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; Bio-Rad Laboratories, Hercules, California, USA
| | - Viola Pomozi
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences Centre of Excellence, Budapest, Hungary
| | - Yannick Le Corre
- PXE National Reference Center (MAGEC Nord), University Hospital of Angers, Angers, France
| | - Janna Zoll
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Gilles Kauffenstein
- UMR INSERM 1260, Nano Regenerative Medicine, University of Strasbourg, Strasbourg, France
| | - Chi Ma
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Peter R Hoffmann
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Ludovic Martin
- PXE National Reference Center (MAGEC Nord), University Hospital of Angers, Angers, France; CNRS 6015, UMR INSERM U1083, MITOVASC Laboratory, University of Angers, Angers, France
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA.
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Charlot A, Charles AL, Georg I, Goupilleau F, Debrut L, Pizzimenti M, Geny B, Zoll J. Beneficial effects of the ketogenic diet on glucose intolerance and hepatic lipid accumulation in obese mice model. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.122] [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: 10/19/2022]
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Hartog GD, Ederveen THA, Venkatasubramanian PB, Ferwerda G, van den Kieboom CH, van der Gaast-de Jongh CE, Vissers M, Zoll J, Melchers WJG, Huynen MA, Rots N, Rahamat-Langendoen J, de Jonge MI. Chemokine profiling in children and adults with symptomatic and asymptomatic respiratory viral infections. J Infect 2021; 83:709-737. [PMID: 34715239 DOI: 10.1016/j.jinf.2021.10.012] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Abstract
Molecular diagnosis; Viral infection; Chemokines; Disease prognosis; CXCL10; CXCL11; CCL3; CCL4; CCL5; Random forest.
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Affiliation(s)
- G Den Hartog
- Centre for Immunology of Infectious Diseases and Vaccination, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, Bilthoven 3721 MA, the Netherlands.
| | - T H A Ederveen
- Center for Molecular and Biomolecular Informatics, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - P B Venkatasubramanian
- Center for Molecular and Biomolecular Informatics, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - G Ferwerda
- Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - C H van den Kieboom
- Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - C E van der Gaast-de Jongh
- Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - M Vissers
- Centre for Immunology of Infectious Diseases and Vaccination, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, Bilthoven 3721 MA, the Netherlands
| | - J Zoll
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands; Department of Medical Microbiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - W J G Melchers
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands; Department of Medical Microbiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - M A Huynen
- Center for Molecular and Biomolecular Informatics, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - N Rots
- Centre for Immunology of Infectious Diseases and Vaccination, National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, Bilthoven 3721 MA, the Netherlands
| | - J Rahamat-Langendoen
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands; Department of Medical Microbiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
| | - M I de Jonge
- Laboratory of Medical Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands; Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein Zuid 10, Nijmegen 6525 GA, the Netherlands
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Roberts FL, Rashdan NA, Phadwal K, Markby GR, Dillon S, Zoll J, Berger J, Milne E, Orriss IR, Karsenty G, Le Saux O, Morton NM, Farquharson C, MacRae VE. Osteoblast-specific deficiency of ectonucleotide pyrophosphatase or phosphodiesterase-1 engenders insulin resistance in high-fat diet fed mice. J Cell Physiol 2021; 236:4614-4624. [PMID: 33305372 PMCID: PMC9665351 DOI: 10.1002/jcp.30194] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 02/07/2020] [Revised: 11/14/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022]
Abstract
Supraphysiological levels of the osteoblast-enriched mineralization regulator ectonucleotide pyrophosphatase or phosphodiesterase-1 (NPP1) is associated with type 2 diabetes mellitus. We determined the impact of osteoblast-specific Enpp1 ablation on skeletal structure and metabolic phenotype in mice. Female, but not male, 6-week-old mice lacking osteoblast NPP1 expression (osteoblast-specific knockout [KO]) exhibited increased femoral bone volume or total volume (17.50% vs. 11.67%; p < .01), and reduced trabecular spacing (0.187 vs. 0.157 mm; p < .01) compared with floxed (control) mice. Furthermore, an enhanced ability of isolated osteoblasts from the osteoblast-specific KO to calcify their matrix in vitro compared to fl/fl osteoblasts was observed (p < .05). Male osteoblast-specific KO and fl/fl mice showed comparable glucose and insulin tolerance despite increased levels of insulin-sensitizing under-carboxylated osteocalcin (195% increase; p < .05). However, following high-fat-diet challenge, osteoblast-specific KO mice showed impaired glucose and insulin tolerance compared with fl/fl mice. These data highlight a crucial local role for osteoblast NPP1 in skeletal development and a secondary metabolic impact that predominantly maintains insulin sensitivity.
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Affiliation(s)
- Fiona L. Roberts
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
| | - Nabil A. Rashdan
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
| | - Kanchan Phadwal
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
| | - Greg R. Markby
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
| | - Scott Dillon
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
| | - Janna Zoll
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Julian Berger
- Department of Genetics and Development, Columbia University Medical Center, New York, New York, USA
| | - Elspeth Milne
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
| | - Isabel R. Orriss
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, London, UK
| | - Gerard Karsenty
- Department of Genetics and Development, Columbia University Medical Center, New York, New York, USA
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Nicholas M. Morton
- Centre for Cardiovascular Science, The Queen’s Medical Research Institute, The College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh, UK
| | - Colin Farquharson
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
| | - Vicky E. MacRae
- Functional Genetics and Development, The Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Midlothian, UK
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Shimada BK, Pomozi V, Zoll J, Kuo S, Martin L, Le Saux O. ABCC6, Pyrophosphate and Ectopic Calcification: Therapeutic Solutions. Int J Mol Sci 2021; 22:ijms22094555. [PMID: 33925341 PMCID: PMC8123679 DOI: 10.3390/ijms22094555] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 12/11/2022] Open
Abstract
Pathological (ectopic) mineralization of soft tissues occurs during aging, in several common conditions such as diabetes, hypercholesterolemia, and renal failure and in certain genetic disorders. Pseudoxanthoma elasticum (PXE), a multi-organ disease affecting dermal, ocular, and cardiovascular tissues, is a model for ectopic mineralization disorders. ABCC6 dysfunction is the primary cause of PXE, but also some cases of generalized arterial calcification of infancy (GACI). ABCC6 deficiency in mice underlies an inducible dystrophic cardiac calcification phenotype (DCC). These calcification diseases are part of a spectrum of mineralization disorders that also includes Calcification of Joints and Arteries (CALJA). Since the identification of ABCC6 as the “PXE gene” and the development of several animal models (mice, rat, and zebrafish), there has been significant progress in our understanding of the molecular genetics, the clinical phenotypes, and pathogenesis of these diseases, which share similarities with more common conditions with abnormal calcification. ABCC6 facilitates the cellular efflux of ATP, which is rapidly converted into inorganic pyrophosphate (PPi) and adenosine by the ectonucleotidases NPP1 and CD73 (NT5E). PPi is a potent endogenous inhibitor of calcification, whereas adenosine indirectly contributes to calcification inhibition by suppressing the synthesis of tissue non-specific alkaline phosphatase (TNAP). At present, therapies only exist to alleviate symptoms for both PXE and GACI; however, extensive studies have resulted in several novel approaches to treating PXE and GACI. This review seeks to summarize the role of ABCC6 in ectopic calcification in PXE and other calcification disorders, and discuss therapeutic strategies targeting various proteins in the pathway (ABCC6, NPP1, and TNAP) and direct inhibition of calcification via supplementation by various compounds.
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Affiliation(s)
- Briana K Shimada
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96817, USA
| | - Viola Pomozi
- Institute of Enzymology, RCNS, Hungarian Academy of Sciences, 1117 Budapest, Hungary
| | - Janna Zoll
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96817, USA
| | - Sheree Kuo
- Department of Pediatrics, Kapi'olani Medical Center for Women and Children, University of Hawaii, Honolulu, HI 96826, USA
| | - Ludovic Martin
- PXE Consultation Center, MAGEC Reference Center for Rare Skin Diseases, Angers University Hospital, 49100 Angers, France
- BNMI, CNRS 6214/INSERM 1083, University Bretagne-Loire, 49100 Angers, France
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96817, USA
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Brampton C, Pomozi V, Chen LH, Apana A, McCurdy S, Zoll J, Boisvert WA, Lambert G, Henrion D, Blanchard S, Kuo S, Leftheriotis G, Martin L, Le Saux O. ABCC6 deficiency promotes dyslipidemia and atherosclerosis. Sci Rep 2021; 11:3881. [PMID: 33594095 PMCID: PMC7887252 DOI: 10.1038/s41598-021-82966-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 07/13/2020] [Accepted: 01/25/2021] [Indexed: 02/08/2023] Open
Abstract
ABCC6 deficiency promotes ectopic calcification; however, circumstantial evidence suggested that ABCC6 may also influence atherosclerosis. The present study addressed the role of ABCC6 in atherosclerosis using Ldlr-/- mice and pseudoxanthoma elasticum (PXE) patients. Mice lacking the Abcc6 and Ldlr genes were fed an atherogenic diet for 16 weeks before intimal calcification, aortic plaque formation and lipoprotein profile were evaluated. Cholesterol efflux and the expression of several inflammation, atherosclerosis and cholesterol homeostasis-related genes were also determined in murine liver and bone marrow-derived macrophages. Furthermore, we examined plasma lipoproteins, vascular calcification, carotid intima-media thickness and atherosclerosis in a cohort of PXE patients with ABCC6 mutations and compared results to dysmetabolic subjects with increased cardiovascular risk. We found that ABCC6 deficiency causes changes in lipoproteins, with decreased HDL cholesterol in both mice and humans, and induces atherosclerosis. However, we found that the absence of ABCC6 does not influence overall vascular mineralization induced with atherosclerosis. Decreased cholesterol efflux from macrophage cells and other molecular changes such as increased pro-inflammation seen in both humans and mice are likely contributors for the phenotype. However, it is likely that other cellular and/or molecular mechanisms are involved. Our study showed a novel physiological role for ABCC6, influencing plasma lipoproteins and atherosclerosis in a haploinsufficient manner, with significant penetrance.
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Affiliation(s)
- Christopher Brampton
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo St. BSB222E, Honolulu, HI, USA
- Bio-Rad Laboratories, Inc., Hercules, CA, USA
| | - Viola Pomozi
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo St. BSB222E, Honolulu, HI, USA
| | - Li-Hsieh Chen
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo St. BSB222E, Honolulu, HI, USA
| | - Ailea Apana
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo St. BSB222E, Honolulu, HI, USA
| | - Sara McCurdy
- Department of Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
- Department of Medicine, University of California San Diego, San Diego, USA
| | - Janna Zoll
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo St. BSB222E, Honolulu, HI, USA
| | - William A Boisvert
- Department of Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Gilles Lambert
- University of La Réunion Medical School (France) INSERM UMR1188 DéTROI, Ste Clotilde, La Réunion, France
| | - Daniel Henrion
- MITOVASC Institute - UMR CNRS 6015 INSERM U1083, University of Angers, Angers, France
| | - Simon Blanchard
- Département d'Immunologie et d'Allergologie, University Hospital of Angers, 49000, Angers, France
- Inserm U1232, CRCINA, University of Angers, 44000, Nantes, France
| | - Sheree Kuo
- Department of Pediatrics Kapi'olani Medical Center for Women and Children, University of Hawaii, Honolulu, HI, USA
| | - Georges Leftheriotis
- Faculty of Medicine, University of Nice-Sophia Antipolis, 06107, Nice, France
- Laboratory of Physiology and Molecular Medicine (LP2M) UMR CNRS 7073, 06107, Nice, France
| | - Ludovic Martin
- PXE Consultation Center, MAGEC Reference Center for Rare Skin Diseases, Angers University Hospital, Angers, France
- BNMI, CNRS 6214/INSERM 1083, University Bretagne-Loire, Angers, France
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, 651 Ilalo St. BSB222E, Honolulu, HI, USA.
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Cremers AJH, Coolen JPM, Bleeker-Rovers CP, van der Geest-Blankert ADJ, Haverkate D, Hendriks H, Henriet SSV, Huynen MA, Kolwijck E, Liem D, Melchers WJG, Rossen JW, Zoll J, van Heijst A, Hopman J, Wertheim HFL. Surveillance-embedded genomic outbreak resolution of methicillin-susceptible Staphylococcus aureus in a neonatal intensive care unit. Sci Rep 2020; 10:2619. [PMID: 32060342 PMCID: PMC7021795 DOI: 10.1038/s41598-020-59015-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 06/21/2019] [Accepted: 01/22/2020] [Indexed: 01/14/2023] Open
Abstract
We observed an increase in methicillin-susceptible Staphylococcus aureus (MSSA) infections at a Dutch neonatal intensive care unit. Weekly neonatal MSSA carriage surveillance and cross-sectional screenings of health care workers (HCWs) were available for outbreak tracing. Traditional clustering of MSSA isolates by spa typing and Multiple-Locus Variable number tandem repeat Analysis (MLVA) suggested that nosocomial transmission had contributed to the infections. We investigated whether whole-genome sequencing (WGS) of MSSA surveillance would provide additional evidence for transmission. MSSA isolates from neonatal infections, carriage surveillance, and HCWs were subjected to WGS and bioinformatic analysis for identification and localization of high-quality single nucleotide polymorphisms, and in-depth analysis of subsets of isolates. By measuring the genetic diversity in background surveillance, we defined transmission-level relatedness and identified isolates that had been unjustly assigned to clusters based on MLVA, while spa typing was concordant but of insufficient resolution. Detailing particular subsets of isolates provided evidence that HCWs were involved in multiple outbreaks, yet it alleviated concerns about one particular HCW. The improved resolution and accuracy of genomic outbreak analyses substantially altered the view on outbreaks, along with apposite measures. Therefore, inclusion of the circulating background population has the potential to overcome current issues in genomic outbreak inference.
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Affiliation(s)
- A J H Cremers
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands.
| | - J P M Coolen
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
| | - C P Bleeker-Rovers
- Department of Internal Medicine, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
| | | | - D Haverkate
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
| | - H Hendriks
- Department of Neonatology, Radboudumc, Nijmegen, the Netherlands
| | - S S V Henriet
- Department of Pediatrics, Radboudumc Amalia Children's Hospital, Nijmegen, the Netherlands
| | - M A Huynen
- Centre for Molecular and Biomolecular Informatics, Radboud Institute for Molecular Life Sciences, Radboudumc, Nijmegen, the Netherlands
| | - E Kolwijck
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
| | - D Liem
- Department of Neonatology, Radboudumc, Nijmegen, the Netherlands
| | - W J G Melchers
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
| | - J W Rossen
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - J Zoll
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
| | - A van Heijst
- Department of Neonatology, Radboudumc, Nijmegen, the Netherlands
| | - J Hopman
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
| | - H F L Wertheim
- Department of Medical Microbiology, Radboudumc center for infectious diseases, Nijmegen, the Netherlands
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Pomozi V, Julian CB, Zoll J, Pham K, Kuo S, Tőkési N, Martin L, Váradi A, Le Saux O. Dietary Pyrophosphate Modulates Calcification in a Mouse Model of Pseudoxanthoma Elasticum: Implication for Treatment of Patients. J Invest Dermatol 2018; 139:1082-1088. [PMID: 30468740 DOI: 10.1016/j.jid.2018.10.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/11/2018] [Accepted: 10/25/2018] [Indexed: 12/15/2022]
Abstract
Pseudoxanthoma elasticum is a heritable disease caused by ABCC6 deficiency. Patients develop ectopic calcification in skin, eyes, and vascular tissues. ABCC6, primarily found in liver and kidneys, mediates the cellular efflux of ATP, which is rapidly converted into inorganic pyrophosphate (PPi), a potent inhibitor of calcification. Pseudoxanthoma elasticum patients and Abcc6-/- mice display reduced PPi levels in plasma and peripheral tissues. Pseudoxanthoma elasticum is currently incurable, although some palliative treatments exist. In recent years, we have successfully developed therapeutic methodologies to compensate the PPi deficit in animal models and humans. Here, we inadvertently discovered that modulating dietary PPi can also be an effective approach to reducing calcification in Abcc6-/- mice. Our findings were prompted by a change in institutional rodent diet. The new chow was enriched in PPi, which increased plasma PPi, and significantly reduced mineralization in Abcc6-/- mice. We also found that dietary PPi is readily absorbed in humans. Our results suggest that the consumption of food naturally or artificially enriched in PPi represents a possible intervention to mitigate calcification progression in pseudoxanthoma elasticum, that dietary preferences of patients may explain pseudoxanthoma elasticum heterogeneous manifestations, and that animal chow has the potential to influence data reproducibility.
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Affiliation(s)
- Viola Pomozi
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA; Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Charnelle B Julian
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Janna Zoll
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Kevin Pham
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Sheree Kuo
- Department of Pediatrics Kapi'olani Medical Center for Women and Children and University of Hawaii, John A. Burns School of Medicine, Honolulu, Hawaii, USA
| | - Natália Tőkési
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Ludovic Martin
- Université d'Angers, MitoVasc, Le Centre National de la Recherche Scientifique 6015/Institut National de la Santé et de la Recherche Médicale 1083, Angers, France; Centre Hospitalier Universitaire d'Angers, Centre de Référence PXE, Reference Centre for Genetic Dermatologic Diseases, Nord, Angers, France
| | - András Váradi
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA.
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Letavernier E, Kauffenstein G, Huguet L, Navasiolava N, Bouderlique E, Tang E, Delaitre L, Bazin D, de Frutos M, Gay C, Perez J, Verpont MC, Haymann JP, Pomozi V, Zoll J, Le Saux O, Daudon M, Leftheriotis G, Martin L. ABCC6 Deficiency Promotes Development of Randall Plaque. J Am Soc Nephrol 2018; 29:2337-2347. [PMID: 29991491 DOI: 10.1681/asn.2017101148] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [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: 10/31/2017] [Accepted: 05/28/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Pseudoxanthoma elasticum (PXE) is a genetic disease caused by mutations in the ABCC6 gene that result in low pyrophosphate levels and subsequent progressive soft tissue calcifications. PXE mainly affects the skin, retina, and arteries. However, many patients with PXE experience kidney stones. We determined the prevalence of this pathology in patients with PXE and examined the possible underlying mechanisms in murine models. METHODS We conducted a retrospective study in a large cohort of patients with PXE and analyzed urine samples and kidneys from Abcc6-/- mice at various ages. We used Yasue staining, scanning electron microscopy, electron microscopy coupled to electron energy loss spectroscopy, and Fourier transform infrared microspectroscopy to characterize kidney calcifications. RESULTS Among 113 patients with PXE, 45 (40%) had a past medical history of kidney stones. Five of six computed tomography scans performed showed evidence of massive papillary calcifications (Randall plaques). Abcc6-/- mice spontaneously developed kidney interstitial apatite calcifications with aging. These calcifications appeared specifically at the tip of the papilla and formed Randall plaques similar to those observed in human kidneys. Compared with controls, Abcc6-/- mice had low urinary excretion of pyrophosphate. CONCLUSIONS The frequency of kidney stones and probably, Randall plaque is extremely high in patients with PXE, and Abcc6-/- mice provide a new and useful model in which to study Randall plaque formation. Our findings also suggest that pyrophosphate administration should be evaluated for the prevention of Randall plaque and kidney stones.
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Affiliation(s)
- Emmanuel Letavernier
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France; .,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France.,Department of Physiology, Assistance Publique-Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - Gilles Kauffenstein
- Institut des maladies mitochondriales, du coeur et des vaisseaux-MITOVASC, Centre National de la Recherche Scientifique 6015, Institut National de la Santé et de la Recherche Médicale U1083, Angers University, Angers, France
| | - Léa Huguet
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France.,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France
| | - Nastassia Navasiolava
- Department of Dermatology, PseudoXanthoma Elasticum Consultation center, Reference Center for rare skin diseases, Angers University Hospital, France
| | - Elise Bouderlique
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France.,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France
| | - Ellie Tang
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France.,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France
| | - Léa Delaitre
- Department of Dermatology, PseudoXanthoma Elasticum Consultation center, Reference Center for rare skin diseases, Angers University Hospital, France
| | - Dominique Bazin
- Unité Mixte de Recherche 8502, Laboratoire de Physique des Solides, Centre National de la Recherche Scientifique, Université Paris Sud XI, Orsay, France
| | - Marta de Frutos
- Unité Mixte de Recherche 8502, Laboratoire de Physique des Solides, Centre National de la Recherche Scientifique, Université Paris Sud XI, Orsay, France
| | - Clément Gay
- Unité Mixte de Recherche 8502, Laboratoire de Physique des Solides, Centre National de la Recherche Scientifique, Université Paris Sud XI, Orsay, France
| | - Joëlle Perez
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France.,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France
| | - Marie-Christine Verpont
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France.,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France
| | - Jean-Philippe Haymann
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France.,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France.,Department of Physiology, Assistance Publique-Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - Viola Pomozi
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; and
| | - Janna Zoll
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; and
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii; and
| | - Michel Daudon
- Unité Mixte de Recherche S 1155, Sorbonne Universités, Université Pierre et Marie Curie-Paris 06, Paris, France.,Unité Mixte de Recherche S 1155, Institut National de la Santé et de la Recherche Médicale, Paris, France.,Department of Physiology, Assistance Publique-Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - Georges Leftheriotis
- Department of Physiology and Molecular Medicine, Unité Mixte de Recherche 7370, Centre National de la Recherche Scientifique, University of Nice, Nice, France
| | - Ludovic Martin
- Institut des maladies mitochondriales, du coeur et des vaisseaux-MITOVASC, Centre National de la Recherche Scientifique 6015, Institut National de la Santé et de la Recherche Médicale U1083, Angers University, Angers, France.,Department of Dermatology, PseudoXanthoma Elasticum Consultation center, Reference Center for rare skin diseases, Angers University Hospital, France
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10
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Pomozi V, Brampton C, van de Wetering K, Zoll J, Calio B, Pham K, Owens JB, Marh J, Moisyadi S, Váradi A, Martin L, Bauer C, Erdmann J, Aherrahrou Z, Le Saux O. Pyrophosphate Supplementation Prevents Chronic and Acute Calcification in ABCC6-Deficient Mice. Am J Pathol 2017; 187:1258-1272. [PMID: 28416300 DOI: 10.1016/j.ajpath.2017.02.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 02/16/2017] [Indexed: 12/28/2022]
Abstract
Soft tissue calcification occurs in several common acquired pathologies, such as diabetes and hypercholesterolemia, or can result from genetic disorders. ABCC6, a transmembrane transporter primarily expressed in liver and kidneys, initiates a molecular pathway inhibiting ectopic calcification. ABCC6 facilitates the cellular efflux of ATP, which is rapidly converted into pyrophosphate (PPi), a major calcification inhibitor. Heritable mutations in ABCC6 underlie the incurable calcification disorder pseudoxanthoma elasticum and some cases of generalized arterial calcification of infancy. Herein, we determined that the administration of PPi and the bisphosphonate etidronate to Abcc6-/- mice fully inhibited the acute dystrophic cardiac calcification phenotype, whereas alendronate had no significant effect. We also found that daily injection of PPi to Abcc6-/- mice over several months prevented the development of pseudoxanthoma elasticum-like spontaneous calcification, but failed to reverse already established lesions. Furthermore, we found that the expression of low amounts of the human ABCC6 in liver of transgenic Abcc6-/- mice, resulting in only a 27% increase in plasma PPi levels, led to a major reduction in acute and chronic calcification phenotypes. This proof-of-concept study shows that the development of both acute and chronic calcification associated with ABCC6 deficiency can be prevented by compensating PPi deficits, even partially. Our work indicates that PPi substitution represents a promising strategy to treat ABCC6-dependent calcification disorders.
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Affiliation(s)
- Viola Pomozi
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Christopher Brampton
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Koen van de Wetering
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Janna Zoll
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Bianca Calio
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Kevin Pham
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Jesse B Owens
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Joel Marh
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Stefan Moisyadi
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - András Váradi
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Ludovic Martin
- Université Bretagne-Loire, Integrated Neurovascular and Mitochondrial Biology, National Center for Scientific Research 6214/INSERM 1083, Angers, France; University Hospital Angers, Center for PXE Consultation, Angers, France
| | - Carolin Bauer
- Institut für Integrative und Experimentelle Genomik Universität zu Lübeck, German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Germany; University Heart Centre Lübeck, Universität zu Lübeck, Lübeck, Germany
| | - Jeanette Erdmann
- Institut für Integrative und Experimentelle Genomik Universität zu Lübeck, German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Germany; University Heart Centre Lübeck, Universität zu Lübeck, Lübeck, Germany
| | - Zouhair Aherrahrou
- Institut für Integrative und Experimentelle Genomik Universität zu Lübeck, German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Germany; University Heart Centre Lübeck, Universität zu Lübeck, Lübeck, Germany
| | - Olivier Le Saux
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii.
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11
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Delay C, Paradis S, Charles AL, Thaveau F, Chenesseau B, Zoll J, Chakfe N, Geny B, Lejay A. [Skeletal muscle ischemia-reperfusion and ischemic conditioning pathophysiology-clinical applications for the vascular surgeon]. J Med Vasc 2017; 42:29-38. [PMID: 27989659 DOI: 10.1016/j.jmv.2016.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/15/2016] [Indexed: 06/06/2023]
Abstract
Ischemia-reperfusion, which is characterized by deficient oxygen supply and subsequent restoration of blood flow, can cause irreversible damage to tissue. The vascular surgeon is daily faced with ischemia-reperfusion situations. Indeed, arterial clamping induces ischemia, followed by reperfusion when declamping. Mechanisms underlying ischemia-reperfusion injury are complex and multifactorial. Increases in cellular calcium and reactive oxygen species, initiated during ischemia and then amplified upon reperfusion are thought to be the main mediators of reperfusion injury. Mitochondrial dysfunction also plays an important role. Extensive research has focused on increasing skeletal muscle tolerance to ischemia-reperfusion injury, especially through the use of ischemic conditioning strategies. The purpose of this review is to focus on the cellular responses associated with ischemia-reperfusion, as well as to discuss the effects of ischemic conditioning strategies. This would help the vascular surgeon in daily practice, in order to try to improve surgical outcome in the setting of ischemia-reperfusion.
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Affiliation(s)
- C Delay
- Service de chirurgie vasculaire et transplantation rénale, nouvel hôpital civil, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France
| | - S Paradis
- Unité EA 3072 « Mitochondries, stress oxydant et protection musculaire », université de Strasbourg, 4, rue Kirschleger, 67000 Strasbourg, France
| | - A L Charles
- Unité EA 3072 « Mitochondries, stress oxydant et protection musculaire », université de Strasbourg, 4, rue Kirschleger, 67000 Strasbourg, France
| | - F Thaveau
- Service de chirurgie vasculaire et transplantation rénale, nouvel hôpital civil, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France
| | - B Chenesseau
- Service de chirurgie vasculaire et transplantation rénale, nouvel hôpital civil, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France
| | - J Zoll
- Unité EA 3072 « Mitochondries, stress oxydant et protection musculaire », université de Strasbourg, 4, rue Kirschleger, 67000 Strasbourg, France
| | - N Chakfe
- Service de chirurgie vasculaire et transplantation rénale, nouvel hôpital civil, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France; Unité EA 3072 « Mitochondries, stress oxydant et protection musculaire », université de Strasbourg, 4, rue Kirschleger, 67000 Strasbourg, France
| | - B Geny
- Unité EA 3072 « Mitochondries, stress oxydant et protection musculaire », université de Strasbourg, 4, rue Kirschleger, 67000 Strasbourg, France
| | - A Lejay
- Service de chirurgie vasculaire et transplantation rénale, nouvel hôpital civil, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France; Unité EA 3072 « Mitochondries, stress oxydant et protection musculaire », université de Strasbourg, 4, rue Kirschleger, 67000 Strasbourg, France.
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12
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Meyer A, Charles AL, Singh F, Zoll J, Talha S, Enache I, Chaarloux A, Inser-Horobeti ME, Geny B. Cardiac mitochondrial oxidative capacity is partly preserved after cryopreservation with dimethyl sulfoxide. Cryo Letters 2016; 37:110-114. [PMID: 27224522] [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: 06/05/2023]
Abstract
BACKGROUND Cardiac muscle cryopreservation is a challenge for both diagnostic procedure requiring viable tissues and therapeutic advance in regenerative medicine. Mitochondria are targets of both direct and indirect damages, secondary to congelation per se and/or to cryoprotectant's toxic effects, which participate to diminution of viability and/or functioning of cells after freezing. At the cardiac muscle level, only one study had investigated mitochondrial respiration after cryopreservation. OBJECTIVE To determine the effect of cryopreservation on mitochondrial respiration of cardiac muscle. MATERIALS AND TMETHODS We recorded mitochondrial respiration through complexes I, II, III and IV along with mitochondrial coupling in fresh and cryopreserved rat left ventricles samples and assessed difference of the means, correlation and agreement between the measures in all samples. RESULTS Mitochondrial respiration was partly maintained up to 70% in cryopreserved samples whatever the substrate. A significant correlation was observed between fresh and cryopreserved samples (r = 0.71, p < 0.0001). However, mitochondrial coupling significantly decreased after cryopreservation (- 1.44 ± 0.15; p < 0.005) suggesting that mitochondrial intactness was not totally preserved by cryopreservation. Further, the fluctuations around the mean difference were wide (-14.06, +5.08 µmol/min/g), increasing with respiration rates (p < 0.0001). CONCLUSION Thus, fresh samples extemporaneous analysis should be preferred when available despite the fact that cryopreservation using DMSO partly protect cardiac mitochondrial respiration and coupling. These data support the interest to further refine cryopreservation methods.
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Affiliation(s)
- A Meyer
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France
| | - A L Charles
- Federation de Medecine Translationnelle, Universite de Strasbourg, France
| | - F Singh
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France
| | - J Zoll
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France
| | - S Talha
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France
| | - I Enache
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France
| | - A Chaarloux
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France
| | - M E Inser-Horobeti
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France
| | - B Geny
- Federation de Medecine Translationnelle, Universite de Strasbourg; Service de Physiologie et dExplorations Fonctionnelles, Pole de Pathologie Thoracique Hopitaux Universitaires de Strasbourg, France.
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Bavelaar H, Rahamat-Langendoen J, Niesters H, Zoll J, Melchers W. Whole genome sequencing of fecal samples as a tool for the diagnosis and genetic characterization of norovirus. J Clin Virol 2015. [DOI: 10.1016/j.jcv.2015.07.228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Charles AL, Lejay A, Zoll J, Chakfe N, Geny B. Re: 'Protective Effect of Focal Adhesion Kinase against Skeletal Muscle Reperfusion Injury after Acute Limb Ischemia'. Eur J Vasc Endovasc Surg 2015; 49:753. [PMID: 25837988 DOI: 10.1016/j.ejvs.2015.02.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 11/29/2022]
Affiliation(s)
- A-L Charles
- Fédération de Médecine Translationelle, Equipe d'Accueil 3072, Mitochondrie, Stress oxydant et Protection Musculaire, Université de Strasbourg, Strasbourg, France
| | - A Lejay
- Fédération de Médecine Translationelle, Equipe d'Accueil 3072, Mitochondrie, Stress oxydant et Protection Musculaire, Université de Strasbourg, Strasbourg, France; Department of Vascular Surgery and Kidney Transplantation, University Hospital, Strasbourg, France
| | - J Zoll
- Fédération de Médecine Translationelle, Equipe d'Accueil 3072, Mitochondrie, Stress oxydant et Protection Musculaire, Université de Strasbourg, Strasbourg, France; Department of Physiology and Functional Explorations, University Hospital, Strasbourg, France
| | - N Chakfe
- Fédération de Médecine Translationelle, Equipe d'Accueil 3072, Mitochondrie, Stress oxydant et Protection Musculaire, Université de Strasbourg, Strasbourg, France; Department of Vascular Surgery and Kidney Transplantation, University Hospital, Strasbourg, France
| | - B Geny
- Fédération de Médecine Translationelle, Equipe d'Accueil 3072, Mitochondrie, Stress oxydant et Protection Musculaire, Université de Strasbourg, Strasbourg, France; Department of Physiology and Functional Explorations, University Hospital, Strasbourg, France.
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Collange O, Charles AL, Lavaux T, Noll E, Bouitbir J, Zoll J, Chakfé N, Mertes M, Geny B. Compartmentalization of Inflammatory Response Following Gut Ischemia Reperfusion. Eur J Vasc Endovasc Surg 2015; 49:60-5. [DOI: 10.1016/j.ejvs.2014.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 10/11/2014] [Indexed: 11/27/2022]
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Deng S, de Hoog GS, Verweij PE, Zoll J, Ilkit M, Morsali F, Abliz P, Wang X, Zhan P, Yang L, Hasimu H, Liao W, Pan W, Seyedmousavi S. In vitro antifungal susceptibility of Trichophyton violaceum isolated from tinea capitis patients. J Antimicrob Chemother 2014; 70:1072-5. [PMID: 25492394 DOI: 10.1093/jac/dku503] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Trichophyton violaceum is an anthropophilic dermatophyte that is endemic to parts of Africa and Asia and is sporadic in Europe. T. violaceum mainly causes tinea capitis in both children and adolescents. Although the infections caused by T. violaceum are of considerable medical importance, its antifungal susceptibility profile remains poorly examined. METHODS In this study, we tested the in vitro antifungal susceptibility of a set of clinical T. violaceum isolates obtained from tinea capitis patients, using the CLSI broth microdilution method. We tested eight antifungals and used isolates collected from Western China (21), Eastern China (12), the Middle East (1), Europe (20), South Africa (7) and Canada (1). RESULTS The geometric means of the MICs of the antifungals for all isolates were as follows (in increasing order): posaconazole, 0.021 mg/L; terbinafine, 0.023 mg/L; voriconazole, 0.062 mg/L; amphotericin B, 0.20 mg/L; itraconazole, 0.34 mg/L; caspofungin, 0.56 mg/L; fluconazole, 4.23 mg/L; and flucytosine, 8.46 mg/L. No statistically significant differences in the susceptibility profiles of T. violaceum were detected within the geographical regions tested. CONCLUSIONS Posaconazole, terbinafine and voriconazole were shown to be the most potent antifungal agents against T. violaceum isolates obtained from tinea capitis patients worldwide. These results might help clinicians in developing appropriate therapies that have a high probability of successfully treating tinea capitis due to T. violaceum.
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Affiliation(s)
- S Deng
- Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China First Hospital of Xinjiang Medical University, Urumqi, China CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
| | - G S de Hoog
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands Peking University Health Science Center, Research Center for Medical Mycology, Beijing, China Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China King Abdulaziz University, Jeddah, Saudi Arabia
| | - P E Verweij
- Department of Medical Microbiology, Radboudumc, Nijmegen, The Netherlands
| | - J Zoll
- Department of Medical Microbiology, Radboudumc, Nijmegen, The Netherlands
| | - M Ilkit
- Division of Mycology, Department of Microbiology, Faculty of Medicine, University of Çukurova, Adana, Turkey
| | - F Morsali
- Department of Medical Mycology and Parasitology, Faculty of Medicine and Medical Sciences, Islamic Azad University, Ardabil Branch, Ardabil, Iran
| | - P Abliz
- First Hospital of Xinjiang Medical University, Urumqi, China
| | - X Wang
- First Hospital of Xinjiang Medical University, Urumqi, China
| | - P Zhan
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
| | - L Yang
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
| | - H Hasimu
- First Hospital of Xinjiang Medical University, Urumqi, China
| | - W Liao
- Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - W Pan
- Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - S Seyedmousavi
- Department of Medical Microbiology, Radboudumc, Nijmegen, The Netherlands Department of Medical Mycology and Parasitology, Faculty of Medicine and Medical Sciences, Islamic Azad University, Ardabil Branch, Ardabil, Iran Invasive Fungi Research Center, Mazandaran University of Medical Sciences, Sari, Iran Department of Medical Microbiology and Infectious Diseases, Erasmus MC, Rotterdam, The Netherlands
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Lejay A, Thaveau F, Delay C, Charles AL, Zoll J, Chakfé N, Geny B. Effects of Preconditioning and Post Conditioning Statin Treatment on Skeletal Muscle in a Murine Model of Critical Limb Ischemia. Eur J Vasc Endovasc Surg 2014. [DOI: 10.1016/j.ejvs.2014.06.028] [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: 10/24/2022]
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Wolff V, Rouyer O, Schlagowski A, Zoll J, Raul JS, Marescaux C, Geny B. Étude de l’effet du THC sur la respiration mitochondriale du cerveau de rat. Une piste de réflexion pour expliquer le lien entre la consommation de cannabis et la survenue d’infarctus cérébral chez l’homme. Rev Neurol (Paris) 2014. [DOI: 10.1016/j.neurol.2014.01.081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Schlagowski AI, Singh F, Charles AL, Gali Ramamoorthy T, Favret F, Piquard F, Geny B, Zoll J. Mitochondrial uncoupling reduces exercise capacity despite several skeletal muscle metabolic adaptations. J Appl Physiol (1985) 2014; 116:364-75. [DOI: 10.1152/japplphysiol.01177.2013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The effects of mitochondrial uncoupling on skeletal muscle mitochondrial adaptation and maximal exercise capacity are unknown. In this study, rats were divided into a control group (CTL, n = 8) and a group treated with 2,4-dinitrophenol, a mitochondrial uncoupler, for 28 days (DNP, 30 mg·kg−1·day−1in drinking water, n = 8). The DNP group had a significantly lower body mass ( P < 0.05) and a higher resting oxygen uptake (V̇o2, P < 0.005). The incremental treadmill test showed that maximal running speed and running economy ( P < 0.01) were impaired but that maximal V̇o2(V̇o2max) was higher in the DNP-treated rats ( P < 0.05). In skinned gastrocnemius fibers, basal respiration (V0) was higher ( P < 0.01) in the DNP-treated animals, whereas the acceptor control ratio (ACR, Vmax/V0) was significantly lower ( P < 0.05), indicating a reduction in OXPHOS efficiency. In skeletal muscle, DNP activated the mitochondrial biogenesis pathway, as indicated by changes in the mRNA expression of PGC1-α and -β, NRF-1 and −2, and TFAM, and increased the mRNA expression of cytochrome oxidase 1 ( P < 0.01). The expression of two mitochondrial proteins (prohibitin and Ndufs 3) was higher after DNP treatment. Mitochondrial fission 1 protein (Fis-1) was increased in the DNP group ( P < 0.01), but mitofusin-1 and -2 were unchanged. Histochemical staining for NADH dehydrogenase and succinate dehydrogenase activity in the gastrocnemius muscle revealed an increase in the proportion of oxidative fibers after DNP treatment. Our study shows that mitochondrial uncoupling induces several skeletal muscle adaptations, highlighting the role of mitochondrial coupling as a critical factor for maximal exercise capacities. These results emphasize the importance of investigating the qualitative aspects of mitochondrial function in addition to the amount of mitochondria.
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Affiliation(s)
- A. I. Schlagowski
- University of Strasbourg, Faculty of Medicine, FMTS, EA 3072, Strasbourg, France
- CHRU of Strasbourg, Physiology and Functional Explorations Department, New Civil Hospital, Strasbourg, France; and
| | - F. Singh
- University of Strasbourg, Faculty of Medicine, FMTS, EA 3072, Strasbourg, France
| | - A. L. Charles
- University of Strasbourg, Faculty of Medicine, FMTS, EA 3072, Strasbourg, France
| | - T. Gali Ramamoorthy
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Department of Physiological Genetics, Illkirch, France
| | - F. Favret
- University of Strasbourg, Faculty of Medicine, FMTS, EA 3072, Strasbourg, France
- CHRU of Strasbourg, Physiology and Functional Explorations Department, New Civil Hospital, Strasbourg, France; and
| | - F. Piquard
- University of Strasbourg, Faculty of Medicine, FMTS, EA 3072, Strasbourg, France
- CHRU of Strasbourg, Physiology and Functional Explorations Department, New Civil Hospital, Strasbourg, France; and
| | - B. Geny
- University of Strasbourg, Faculty of Medicine, FMTS, EA 3072, Strasbourg, France
- CHRU of Strasbourg, Physiology and Functional Explorations Department, New Civil Hospital, Strasbourg, France; and
| | - J. Zoll
- University of Strasbourg, Faculty of Medicine, FMTS, EA 3072, Strasbourg, France
- CHRU of Strasbourg, Physiology and Functional Explorations Department, New Civil Hospital, Strasbourg, France; and
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van der Linden JWM, Camps SMT, Kampinga GA, Arends JPA, Debets-Ossenkopp YJ, Haas PJA, Rijnders BJA, Kuijper EJ, van Tiel FH, Varga J, Karawajczyk A, Zoll J, Melchers WJG, Verweij PE. Aspergillosis due to Voriconazole Highly Resistant Aspergillus fumigatus and Recovery of Genetically Related Resistant Isolates From Domiciles. Clin Infect Dis 2013; 57:513-20. [DOI: 10.1093/cid/cit320] [Citation(s) in RCA: 267] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Collange O, Charles AL, Bouitbir J, Chenard MP, Zoll J, Diemunsch P, Thaveau F, Chakfé N, Piquard F, Geny B. Methylene blue protects liver oxidative capacity after gut ischaemia-reperfusion in the rat. Eur J Vasc Endovasc Surg 2012; 45:168-75. [PMID: 23246335 DOI: 10.1016/j.ejvs.2012.11.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 11/11/2012] [Indexed: 01/15/2023]
Abstract
OBJECTIVES Mesenteric ischaemia/reperfusion (IR) may lead to liver mitochondrial dysfunction and multiple organ failure. We determined whether gut IR induces early impairment of liver mitochondrial oxidative activity and whether methylene blue (MB) might afford protection. DESIGN Controlled animal study. MATERIALS AND METHODS Rats were randomised into three groups: controls (n = 18), gut IR group (mesenteric ischaemia (60 min)/reperfusion (60 min)) (n = 18) and gut IR + MB group (15 mg kg(-1) MB intra-peritoneally) (n = 16). Study parameters were: serum liver function markers, blood lactate, standard histology and DNA fragmentation (apoptosis) on intestinal and liver tissue, maximal oxidative capacity of liver mitochondria (state 3) and activity of complexes II, III and IV of the respiratory chain measured using a Clark oxygen electrode. RESULTS Gut IR increased lactate deshydrogenase (+982%), aspartate and alanine aminotransferases (+43% and +74%, respectively) and lactate levels (+271%). It induced segmental loss of intestinal villi and cryptic apoptosis. It reduced liver state 3 respiration by 30% from 50.1 ± 3 to 35.2 ± 3.5 μM O(2) min(-1) g(-1) (P < 0.01) and the activity of complexes II, III and IV of the mitochondrial respiratory chain. Early impairment of liver mitochondrial respiration was related to blood lactate levels (r(2) = 0.45). MB restored liver mitochondrial function. CONCLUSIONS MB protected against gut IR-induced liver mitochondria dysfunction.
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Affiliation(s)
- O Collange
- Pôle Anesthésie, Réanimation Chirurgicale, SAMU, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
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Noll E, Bouitbir J, Collange O, Zoll J, Charles A, Thaveau F, Diemunsch P, Geny B. Local but not Systemic Capillary Lactate is a Reperfusion Biomarker in Experimental Acute Limb Ischaemia. Eur J Vasc Endovasc Surg 2012; 43:339-40. [DOI: 10.1016/j.ejvs.2011.12.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 12/15/2011] [Indexed: 11/17/2022]
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Richard R, Zoll J, Mettauer B, Piquard F, Geny B. Counterpoint: Cardiac denervation does not play a major role in exercise limitation after heart transplantation. J Appl Physiol (1985) 2008; 104:560-2, discussion 562-4. [DOI: 10.1152/japplphysiol.00694.2007a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Zoll J, Fontaine V, Gourdy P, Barateau V, Vilar J, Leroyer A, Lopes-Kam I, Mallat Z, Arnal JF, Henry P, Tobelem G, Tedgui A. Role of human smooth muscle cell progenitors in atherosclerotic plaque development and composition. Cardiovasc Res 2007; 77:471-80. [DOI: 10.1093/cvr/cvm034] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Mettauer B, Zoll J, Garnier A, Ventura-Clapier R. Heart failure: a model of cardiac and skeletal muscle energetic failure. Pflugers Arch 2006; 452:653-66. [PMID: 16767467 DOI: 10.1007/s00424-006-0072-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Accepted: 03/09/2006] [Indexed: 10/24/2022]
Abstract
Chronic heart failure (CHF), the new epidemic in cardiology, is characterized by energetic failure of both cardiac and skeletal muscles. The failing heart wastes energy due to anatomical changes that include cavity enlargement, altered geometry, tachycardia, mitral insufficiency and abnormal loading, while skeletal muscle undergoes atrophy. Cardiac and skeletal muscles also have altered high-energy phosphate production and handling in CHF. Nevertheless, there are differences in the phenotype of myocardial and skeletal muscle myopathy in CHF: cardiomyocytes have a lower mitochondrial oxidative capacity, abnormal substrate utilisation and intracellular signalling but a maintained oxidative profile; in skeletal muscle, by contrast, mitochondrial failure is less clear, and there is altered microvascular reactivity, fibre type shifts and abnormalities in the enzymatic systems involved in energy distribution. Underlying these phenotypic abnormalities are changes in gene regulation in both cardiac and skeletal muscle cells. Here, we review the latest advances in cardiac and skeletal muscle energetic research and argue that energetic failure could be taken as a unifying mechanism leading to contractile failure, ultimately resulting in skeletal muscle energetic failure, exertional fatigue and death.
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Affiliation(s)
- B Mettauer
- Département de Physiologie, CHRU, EA3072, F-67091 Strasbourg, France.
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26
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Zoll J, Ponsot E, Doutreleau S, Mettauer B, Piquard F, Mazzucotelli JP, Diemunsch P, Geny B. Acute myocardial ischaemia induces specific alterations of ventricular mitochondrial function in experimental pigs. ACTA ACUST UNITED AC 2006; 185:25-32. [PMID: 16128694 DOI: 10.1111/j.1365-201x.2005.01458.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS As cardiac metabolic flexibility is crucial, this study examined whether acute ischaemia can induce specific qualitative alterations of the mitochondrial metabolic pathways as well as energy transfer systems. METHODS Left descending coronary artery ligation was performed after sternotomy in eight pigs and the heart was excised after 45 min of ischaemia. Maximal O2 uptake (V(max), micromol O2 min(-1) g(-1) dry weight) of saponin-skinned myofibres were measured from ischaemic and non-ischaemic area of ventricular myocardium. RESULTS V(max) decreased by approximately 20% in ischaemic myocardium with both glutamate-malate (18.1 +/- 1.3 vs. 22.1 +/- 1.7 in control, P < 0.05) and pyruvate substrates (19.3 +/- 1.0 vs. 23.3 +/- 2.0 in control, P < 0.05) whereas no difference was observed with palmitoyl carnitine (15.6 +/- 1.8 vs. 16.6 +/- 0.9 in control). The K(m) of mitochondrial respiration for ADP decreased in ischaemic heart by 24% (679 +/- 79 vs. 899 +/- 84 microm of ADP in control, P < 0.05). Moreover, the mitochondrial creatine kinase efficacy (K(m) without creatine/K(m) with creatine), representative of the coupling of oxidative phosphorylation process with the mitochondrial creatine kinase, was reduced in ischaemic heart (11.6 +/- 2.5 in ischaemic vs. 18.0 +/- 2.2 in control, P < 0.05). CONCLUSIONS These findings argue for specific mitochondrial impairments at the level of pyruvate oxidation and creatine kinase channelling system after an acute period of in vivo ischaemia, whereas the lipid mitochondrial oxidation pathway seems to be preserved. Such a loss of metabolic flexibility following acute ischaemia could become an early feature of metabolic dysregulation of the heart.
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Affiliation(s)
- J Zoll
- Service de Physiologie Clinique et des Explorations Fonctionnelles, Département de Physiologie, Faculté de Médecine, Strasbourg, France.
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27
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Zoll J, Steiner R, Meyer K, Vogt M, Hoppeler H, Flück M. Gene expression in skeletal muscle of coronary artery disease patients after concentric and eccentric endurance training. Eur J Appl Physiol 2005; 96:413-22. [PMID: 16311763 DOI: 10.1007/s00421-005-0082-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2005] [Indexed: 10/25/2022]
Abstract
Low-intensity concentric (CET) and eccentric (EET) endurance-type training induce specific structural adaptations in skeletal muscle. We evaluated to which extent steady-state adaptations in transcript levels are involved in the compensatory alterations of muscle mitochondria and myofibrils with CET versus EET at a matched metabolic exercise intensity of medicated, stable coronary patients (CAD). Biopsies were obtained from vastus lateralis muscle before and after 8 weeks of CET (n=6) or EET (n=6). Transcript levels for factors involved in mitochondrial biogenesis (PGC-1alpha, Tfam), mitochondrial function (COX-1, COX-4), control of contractile phenotype (MyHC I, IIa, IIx) as well as mechanical stress marker (IGF-I) were quantified using an reverse-transcriptase polymerase chain reaction approach. After 8 weeks of EET, a reduction of the COX-4 mRNA level by 41% and a tendency for a drop in Tfam transcript concentration (-33%, P=0.06) was noted. This down-regulation corresponded to a drop in total mitochondrial volume density. MyHC-IIa transcript levels were specifically decreased after EET, and MyHC-I mRNA showed a trend towards a reduction (P=0.08). Total fiber cross-sectional area was not altered. After CET and EET, the IGF-I mRNA level was significantly increased. The PGC-1alpha significantly correlated with Tfam, and both PGC-1alpha and Tfam significantly correlated with COX-1 and COX-4 mRNAs. Post-hoc analysis identified significant interactions between the concurrent medication and muscular transcript levels as well as fiber size. Our findings support the concept that specific transcriptional adaptations mediate the divergent mitochondrial response of muscle cells to endurance training under different load condition and indicate a mismatch of processes related to muscle hypertrophy in medicated CAD patients.
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Affiliation(s)
- J Zoll
- Department of Anatomy, University of Bern, Baltzerstrasse 2, 3000 Bern 9, Switzerland
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Ponsot E, Zoll J, N'guessan B, Ribera F, Lampert E, Richard R, Veksler V, Ventura-Clapier R, Mettauer B. Mitochondrial tissue specificity of substrates utilization in rat cardiac and skeletal muscles. J Cell Physiol 2005; 203:479-86. [PMID: 15521069 DOI: 10.1002/jcp.20245] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
As energetic metabolism is crucial for muscles, they develop different adaptations to respond to fluctuating demand among muscle types. Whereas quantitative characteristics are known, no study described simultaneously quantitative and qualitative differences among muscle types in terms of substrates utilization patterns. This study thus defined the pattern of substrates preferential utilization by mitochondria from glycolytic gastrocnemius (GAS) and oxidative soleus (SOL) skeletal muscles and from heart left ventrical (LV) in rats. We measured in situ, ADP (2 mM)-stimulated, mitochondrial respiration rates from skinned fibers in presence of increasing concentrations of pyruvate (Pyr) + malate (Mal), palmitoyl-carnitine (Palm-C) + Mal, glutamate (Glut) + Mal, glycerol-3-phosphate (G3-P), lactate (Lact) + Mal. Because the fibers oxygen uptake (Vs) followed Michaelis-Menten kinetics in function of substrates level we determined the Vs and Km, representing maximal oxidative capacity and the mitochondrial sensibility for each substrate, respectively. Vs were in the order GAS < SOL < LV for Pyr, Glu, and Palm-C substrates, whereas in the order SOL = LV < GAS with G3-P. Moreover, the relative capacity to oxidize Palm-C is extremely higher in LV than in SOL. Vs was not stimulated by the Lact substrate. The Km was equal for Pyr among muscles, but much lower for G3-P in GAS and lower for Palm-C in LV. These results demonstrate qualitative mitochondrial tissue specificity for metabolic pathways. Mitochondria of glycolytic muscle fibers are well adapted to play a central role for maintaining a satisfactory cytosolic redox state in these fibers, whereas mitochondria of LV developed important capacities to use fatty acids.
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Affiliation(s)
- E Ponsot
- Service des Explorations Fonctionnelles Respiratoires et de l'Exercice, Département de Physiologie, Strasbourg, France.
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Zoll J, Sanchez H, N'Guessan B, Ribera F, Lampert E, Bigard X, Serrurier B, Fortin D, Geny B, Veksler V, Ventura-Clapier R, Mettauer B. Physical activity changes the regulation of mitochondrial respiration in human skeletal muscle. J Physiol 2002; 543:191-200. [PMID: 12181291 PMCID: PMC2290497 DOI: 10.1113/jphysiol.2002.019661] [Citation(s) in RCA: 141] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
This study explores the importance of creatine kinase (CK) in the regulation of muscle mitochondrial respiration in human subjects depending on their level of physical activity. Volunteers were classified as sedentary, active or athletic according to the total activity index as determined by the Baecke questionnaire in combination with maximal oxygen uptake values (peak V(O2), expressed in ml min(-1) kg(-1)). All volunteers underwent a cyclo-ergometric incremental exercise test to estimate their peak V(O2) and V(O2) at the ventilatory threshold (VT). Muscle biopsy samples were taken from the vastus lateralis and mitochondrial respiration was evaluated in an oxygraph cell on saponin permeabilised muscle fibres in the absence (V(0)) or in the presence (V(max)) of saturating [ADP]. While V(0) was similar, V(max) differed among groups (sedentary, 3.7 +/- 0.3, active, 5.9 +/- 0.9 and athletic, 7.9 +/- 0.5 micromol O2 min(-1) (g dry weight)(-1)). V(max) was correlated with peak V(O2) (P < 0.01, r = 0.63) and with V(T) (P < 0.01, r = 0.57). There was a significantly greater degree of coupling between oxidation and phosphorylation (V(max)/V(0)) in the athletic individuals. The mitochondrial K(m) for ADP was significantly higher in athletic subjects (P < 0.01). Mitochondrial CK (mi-CK) activation by addition of creatine induced a marked decrease in K(m) in athletic individuals only, indicative of an efficient coupling of mi-CK to ADP rephosphorylation in the athletic subjects only. It is suggested that increasing aerobic performance requires an enhancement of both muscle oxidative capacity and mechanisms of respiratory control, attesting to the importance of temporal co-ordination of energy fluxes by CK for higher efficacy.
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Affiliation(s)
- J Zoll
- Département de Physiologie, Equipe d'Accueil 3072, Faculté de Médecine, Université Louis Pasteur, Strasbourg, France.
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Zoll J, Ventura-Clapier R, Serrurier B, Bigard AX. Response of mitochondrial function to hypothyroidism in normal and regenerated rat skeletal muscle. J Muscle Res Cell Motil 2002; 22:141-7. [PMID: 11519737 DOI: 10.1023/a:1010521108884] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Although thyroid hormones induce a well known decrease in muscle oxidative capacity, nothing is known concerning their effects on mitochondrial function and regulation in situ. Similarly, the influence of regeneration process is not completely understood. We investigated the effects of hypothyroidism on mitochondrial function in fast gastrocnemius (GS) and slow soleus (SOL) muscles either intact or having undergone a cycle of degeneration/regeneration (Rg SOL) following a local injection of myotoxin. Thyroid hormone deficiency was induced by thyroidectomy and propylthiouracyl via drinking water. Respiration was measured in muscle fibres permeabilised by saponin in order to assess the oxidative capacity of the muscles and the regulation of mitochondria in situ. Oxidative capacities were 8.9 in SOL, 8.5 in Rg SOL and 5.9 micromol O2/min/g dry weight in GS and decreased by 52, 42 and 39% respectively (P < 0.001) in hypothyroid rats. Moreover, the Km of mitochondrial respiration for the phosphate acceptor ADP exhibited a two-fold decrease in Rg SOL and intact SOL by hypothyroidism (P < 0.01), while mitochondrial creatine kinase activity and sensitivity of mitochondrial respiration to creatine were not altered. The results of this study demonstrate that hypothyroidism markedly altered the sensitivity of mitochondrial respiration to ADP but not to creatine in SOL muscles, suggesting that mitochondrial regulation could be partially controlled by thyroid hormones. On the other hand, mitochondrial function completely recovered following regeneration/degeneration, suggesting that thyroid hormones are not involved in the regeneration process per se.
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Affiliation(s)
- J Zoll
- Unité de Bioénergétique et Environnement, Centre de Recherches du Service de Santé des Armies, La Tronche, France
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Leclerc N, Ribera F, Zoll J, Warter JM, Poindron P, Lampert E, Borg J. Selective changes in mitochondria respiratory properties in oxidative or glycolytic muscle fibers isolated from G93AhumanSOD1 transgenic mice. Neuromuscul Disord 2001; 11:722-7. [PMID: 11595514 DOI: 10.1016/s0960-8966(01)00240-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cases of familial amyotrophic lateral sclerosis (FALS) are associated with mutations in cytosolic copper, zinc superoxide dismutase (SOD1). Total SOD activity and functional mitochondrial properties were studied in muscles and nervous tissues of control and transgenic mice mimicking the disease. It was found that total SOD activity was lower in nervous tissues than in muscles in both transgenic and control mice. In addition SOD activity increased during progression of disease in muscle but not in nervous tissue of transgenic mice. Maximal oxygen consumption and apparent Km for ADP were decreased in mitochondria from transgenic soleus (an oxidative muscle). However there was no difference between control and transgenic mice in respiratory parameters of mitochondria in the EDL muscle (a glycolytic muscle). These findings indicate that oxidative stress due to SOD1 mutations could alter energy metabolism in FALS mice, thereby affecting primarily oxidative muscle of the limbs, independently of motoneuron loss.
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Affiliation(s)
- N Leclerc
- Laboratoire de Pathologie des Communications entre Cellules Nerveuses et Musculaires, UPRES 2308, Université Louis Pasteur, Centre de Recherches Pharmaceutiques, BP24, 74 route du Rhin, 67401 Illkirch Cedex, France
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M'Bouh S, Bellmont S, Lampert E, Epailly E, Zoll J, N'Guessan B, Ribera F, Geny B, Oyono S, Arnold P, Lonsdorfer J, Mettauer B. An impaired cardiodynamic phase contributes to the abnormal VO(2) kinetics at exercise onset in both congestive heart failure and heart transplant patients but results from differing mechanisms. Transplant Proc 2001; 33:3543-5. [PMID: 11750508 DOI: 10.1016/s0041-1345(01)02426-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- S M'Bouh
- Department of Physiology, Faculty of Medicine, Strasbourg, France
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Bigard AX, Zoll J, Ribera F, Mateo P, Sanchez H, Serrurier B, Ventura-Clapier R. Influence of overload on phenotypic remodeling in regenerated skeletal muscle. Am J Physiol Cell Physiol 2001; 281:C1686-94. [PMID: 11600433 DOI: 10.1152/ajpcell.2001.281.5.c1686] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We studied the effects of 10 wk of functional overload on the expression of myosin heavy chain (MHC), sarcoplasmic reticulum Ca(2+)-ATPase isoforms (SERCA), and the activity of several metabolic enzymes in sham and regenerated plantaris muscles. Overload was accomplished by bilateral surgical ablation of its synergists 4 wk after right plantaris muscles regenerated after myotoxic infiltration. The overload-induced muscle enlargement was slightly less in regenerated than in sham muscles [28% (P < 0.005) and 43% (P < 0.001), respectively]. Overload led to an increase in type I MHC expression (P < 0.01) to a similar extent in sham and regenerated plantaris, while the expected shift from type IIb to type IIa MHC was less marked in regenerated than in sham plantaris. The overload-induced decrease in the expression of the fast SERCA isoform and in the activity of the M subunit of lactate dehydrogenase occurred to a similar extent in sham and regenerated plantaris [66% (P < 0.01) and 27% (P < 0.005), respectively]. In conclusion, the lesser responses of muscle mass and fast MHC composition of regenerated plantaris to mechanical overload suggest an alteration of the transcriptional, translational, and/or posttranslational control of gene expression in regenerated muscle.
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Affiliation(s)
- A X Bigard
- Unité de Bioénergétique et Environnement, Centre de Recherches du Service de Santé des Armées, La Tronche, France.
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Mettauer B, Zoll J, Sanchez H, Lampert E, Ribera F, Veksler V, Bigard X, Mateo P, Epailly E, Lonsdorfer J, Ventura-Clapier R. Oxidative capacity of skeletal muscle in heart failure patients versus sedentary or active control subjects. J Am Coll Cardiol 2001; 38:947-54. [PMID: 11583863 DOI: 10.1016/s0735-1097(01)01460-7] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVES We investigated the in situ properties of muscle mitochondria using the skinned fiber technique in patients with chronic heart failure (CHF) and sedentary (SED) and more active (ACT) controls to determine: 1) whether respiration of muscle tissue in the SED and ACT groups correlates with peak oxygen consumption (pVO(2)), 2) whether it is altered in CHF, and 3) whether this results from deconditioning or CHF-specific myopathy. BACKGROUND Skeletal muscle oxidative capacity is thought to partly determine the exercise capacity in humans and its decrease to participate in exercise limitation in CHF. METHODS M. Vastus lateralis biopsies were obtained from 11 SED group members, 10 ACT group members and 15 patients with CHF at the time of transplantation, saponine-skinned and placed in an oxygraphic chamber to measure basal and maximal adenosine diphosphate (ADP)-stimulated (V(max)) respiration rates and to assess mitochondrial regulation by ADP. All patients received angiotensin-converting enzyme (ACE) inhibitors. RESULTS The pVO(2) differed in the order CHF < SED < ACT. Compared with SED, muscle alterations in CHF appeared as decreased citrate synthase, creatine kinase and lactate dehydrogenase, whereas the myosin heavy chain profile remained unchanged. However, muscle oxidative capacity (V(max), CHF: 3.53 +/- 0.38; SED: 3.17 +/- 0.48; ACT: 7.47 +/- 0.73, micromol O(2).min(-1).g(-1)dw, p < 0.001 vs. CHF and SED) and regulation were identical in patients in the CHF and SED groups, differing in the ACT group only. In patients with CHF, the correlation between pVO(2) and muscle oxidative capacity observed in controls was displaced toward lower pVO(2) values. CONCLUSIONS In these patients, the disease-specific muscle metabolic impairments derive mostly from extramitochondrial mechanisms that disrupt the normal symmorphosis relations. The possible roles of ACE inhibitors and level of activity are discussed.
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Affiliation(s)
- B Mettauer
- Département de Physiologie, Faculté de Médecine, Université Louis Pasteur, Strasbourg, France.
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Sanchez H, Zoll J, Bigard X, Veksler V, Mettauer B, Lampert E, Lonsdorfer J, Ventura-Clapier R. Effect of cyclosporin A and its vehicle on cardiac and skeletal muscle mitochondria: relationship to efficacy of the respiratory chain. Br J Pharmacol 2001; 133:781-8. [PMID: 11454650 PMCID: PMC1572839 DOI: 10.1038/sj.bjp.0704129] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Although cyclosporin (CsA) is considered to be the best immunosuppressive molecule in transplantation, it has been suspected to alter mitochondrial respiration of various tissues. We evaluated the acute effect of CsA and its vehicle on maximal oxidative capacity (V(max)) of cardiac, soleus and gastrocnemius muscles of rats by an oxygraphic method in saponin skinned muscle fibres. The effects of Sandimmun (a formulation of CsA), vehicle of Sandimmun (cremophor and ethanol (EtOH)), CsA in EtOH and EtOH alone were tested. Increasing concentrations (5 - 20 - 50 - 100 microM) of CsA (or vehicles) were used. Sandimmun profoundly altered the V(max) of all muscles. For example, at 20 microM, inhibition reached 18+/-3, 23+/-5, 45+/-5%, for heart, soleus and gastrocnemius respectively. There were only minor effects of CsA diluted in EtOH and EtOH alone on V(max) of cardiac muscle. Because the effects of vehicle on V(max) were similar or higher than those of Sandimmun, the inhibition of oxidative capacity could be entirely attributed to the vehicle for all muscles. Next, we investigated the potential sites of action of the vehicle on the different complexes of the mitochondrial respiratory chain by using specific substrates and inhibitors. The vehicle affected mitochondrial respiration mainly at the level of complex I ( approximately -85% in skeletal muscles, and -32% in heart), but also at complex IV ( approximately -26% for all muscles). The mechanism of action of the vehicle on the mitochondrial membrane and the implications for the clinical use of immunosuppressive drugs are discussed.
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Affiliation(s)
- H Sanchez
- Unité de Bioénergétique et Environnement, Centre de Recherches du Service de Santé des Armées, Ave du Maquis du Grésivaudan, 38702 La Tronche Cedex, France.
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Bigard X, Sanchez H, Zoll J, Mateo P, Rousseau V, Veksler V, Ventura-Clapier R. Calcineurin Co-regulates contractile and metabolic components of slow muscle phenotype. J Biol Chem 2000; 275:19653-60. [PMID: 10777482 DOI: 10.1074/jbc.m000430200] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Activation of the transcription factor nuclear factor of activated T cells by the calcium-sensitive serine/threonine phosphatase calcineurin has been proposed as one of the molecular mechanisms by which motor nerve activity establishes the slow muscle phenotype. To investigate whether the calcineurin pathway can regulate the large spectrum of slow muscle characteristics in vivo, we treated rats for three weeks with cyclosporin A (an inhibitor of calcineurin). In soleus (slow muscle), but not in plantaris (fast muscle), the proportion of slow myosin heavy chain (MHC-1) and slow sarcoplasmic reticulum ATPase (SERCA2a) was decreased, whereas that of fast MHC (MHC-2A) and fast SERCA1 increased, indicating a slow to fast contractile phenotype transition. Cytosolic isoforms of creatine kinase and lactate dehydrogenase (most abundant in fast fibers), as well as mitochondrial creatine kinase and citrate synthase activities (elevated in fast/oxidative fibers) were dose dependently increased by cyclosporin A treatment in soleus muscle, with no change in plantaris. Calcineurin catalytic subunit was more abundant in soleus muscle fibers compared with plantaris. Taken together these results suggest that the calcineurin pathway co-regulates a set of multigenic protein families involved in the transition between slow oxidative (type I) to fast oxidative (type IIa) phenotype in soleus muscle.
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Affiliation(s)
- X Bigard
- Unité de Bioénergétique et Environnement, Centre de Recherches du Service de Santé des Armées, Avenue du Maquis du Grésivaudan, 38702, La Tronche Cedex, France
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Zoll J, van Kuppeveld FJ, Galama JM, Melchers WJ. Genetic analysis of mengovirus protein 2A: its function in polyprotein processing and virus reproduction. J Gen Virol 1998; 79 ( Pt 1):17-25. [PMID: 9460917 DOI: 10.1099/0022-1317-79-1-17] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
To examine the functional requirements of mengovirus 2A for virus reproduction, a series of mutants with overlapping deletions within the 2A region of mengovirus, and two chimeric constructs in which 2A is replaced either by Theiler's murine encephalomyelitis virus (TMEV) 2A or by coxsackie B3 virus (CBV3) 2Apro were generated. In vitro polyprotein synthesis showed that in both deletion mutants and the TMEV 2A chimeric construct, viral 3C protease (3Cpro)-mediated cleavage at the VP1-2A junction was disturbed, which resulted in decreased formation of mature capsid proteins and accumulation of the P1-2A precursor. 2Apro-mediated processing of the chimeric VP1-2Apro junction was highly efficient. Although the resulting L-P1 precursor was cleaved at the L-VP4 junction, further processing of the P1 precursor was abrogated. Two deletion mutant viruses and a TMEV 2A chimeric virus were obtained after transfection. The CBV 2Apro construct did not result in viable virus. Deletion mutant virus production was less than 3% compared to wild-type virus production, whereas chimeric virus production was reduced to 25%. Although inhibition of host-cell translation was identical in wild-type and mutant virus-infected cells, viral protein and RNA synthesis were reduced in cells infected with mutant virus, independently of the impaired P1-2A processing. It is concluded that mengovirus 2A may play a functional role in either virus translation or replication, and that the functional aspects of mengovirus and TMEV 2A cannot be exchanged. The results also confirm that the processing cascade of L-P1-2A occurs sequentially and is probably regulated by subsequent conformational transitions of the cleavage products after each proteolytic event. The sequential release of L and 2A may be essential in the context of their function in virus replication.
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Affiliation(s)
- J Zoll
- Department of Medical Microbiology, University of Nijmegen, The Netherlands.
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van Kuppeveld FJ, van den Hurk PJ, Zoll J, Galama JM, Melchers WJ. Mutagenesis of the coxsackie B3 virus 2B/2C cleavage site: determinants of processing efficiency and effects on viral replication. J Virol 1996; 70:7632-40. [PMID: 8892883 PMCID: PMC190832 DOI: 10.1128/jvi.70.11.7632-7640.1996] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The enterovirus 2B/2C cleavage site differs from the common cleavage site motif AxxQ/G by the occurrence of either polar residues at the P1' position or large aliphatic residues at the P4 position. To study (i) the putative contribution of these aberrant residues to the stability of precursor protein 2BC, (ii) the determinants of cleavage site specificity and efficiency of 3Cpro, and (iii) the importance of efficient cleavage at this site for viral replication, a mutational analysis of the coxsackie B3 virus (CBV3) 2B/2C cleavage site (AxxQ/N) was performed. Neither replacement of the P1' asparagine with a serine or a glycine nor replacement of the P4 alanine with a valine significantly affected 2B/2C cleavage efficiency, RNA replication, or virus growth. The introduction of a P4 asparagine, as can be found at the CBV3 3C/3D cleavage site, caused a severe reduction in 2B/2C cleavage and abolished virus growth. These data support the idea that a P4 asparagine is an unfavorable residue that contributes to a slow turnover of precursor protein 3CD but argue that it is unlikely that the aberrant 2B/2C cleavage site motifs serve to regulate 2B/2C processing efficiency and protein 2BC stability. The viability of a double mutant containing a P4 asparagine and a P1' glycine demonstrated that a P1' residue can compensate for the adverse effects of an unfavorable P4 residue. Poliovirus (or poliovirus-like) 2B/2C cleavage site motifs were correctly processed by CBV 3Cpro, albeit with a reduced efficiency, and yielded viable viruses. Analysis of in vivo protein synthesis showed that mutant viruses containing poorly processed 2B/2C cleavage sites were unable to completely shut off cellular protein synthesis. The failure to inhibit host translation coincided with a reduced ability to modify membrane permeability, as measured by the sensitivity to the unpermeant translation inhibitor hygromycin B. These data suggest that a critical level of protein 2B or 2C, or both, may be required to alter membrane permeability and, possibly as a consequence, to shut off host cell translation.
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Affiliation(s)
- F J van Kuppeveld
- Department of Medical Microbiology, University of Nijmegen, The Netherlands.
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Abstract
The presence of a leader peptide in picornaviruses is restricted to the Cardiovirus and Aphthovirus genera. However, the leader peptides of these two genera are structurally and functionally unrelated. The aphthovirus leader is a protease involved in viral polyprotein processing and host cell translation shutoff. The function of the cardiovirus leader peptide is still unknown. To gain an insight into the function of the cardiovirus leader peptide, a mengovirus leader peptide deletion mutant was constructed. The deletion mutant was able to grow at a reduced rate in baby hamster kidney cells (BHK-21). Mutant virus production in mouse fibroblasts (L929 cells), however, could be demonstrated only after inoculation of BHK-21 cells with the transfected L929 cells. Analysis of cellular and viral protein synthesis in mutant virus-infected cells showed a delayed inhibition of host cell protein synthesis and a reduced production of viral proteins. In a single-cycle infection, mutant virus produced only 1% of wild-type virus yield at 8 h postinfection. Host cell translation shutoff in L929 cells infected with mutant virus was restored by the addition of the kinase inhibitor 2-aminopurine. Mutant virus production in 2-aminopurine-treated L929 cells was increased to 60% of wild-type virus yield at 8 h postinfection. Our results suggest that the cardiovirus leader peptide is involved in the inhibition of host cell protein synthesis.
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Affiliation(s)
- J Zoll
- Department of Medical Microbiology, University of Nijmegen, The Netherlands
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van Kuppeveld FJ, Galama JM, Zoll J, van den Hurk PJ, Melchers WJ. Coxsackie B3 virus protein 2B contains cationic amphipathic helix that is required for viral RNA replication. J Virol 1996; 70:3876-86. [PMID: 8648724 PMCID: PMC190265 DOI: 10.1128/jvi.70.6.3876-3886.1996] [Citation(s) in RCA: 75] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Enterovirus protein 2B has been shown to increase plasma membrane permeability. We have identified a conserved putative amphipathic alpha-helix with a narrow hydrophilic face and an arrangement of cationic residues that is typical for the so-called lytic polypeptides. To examine the functional and structural roles of this putative amphipathic alpha-helix, we have constructed nine coxsackie B3 virus mutants by site-directed mutagenesis of an infectious cDNA clone. Six mutants contained substitutions of the charged residues in the hydrophilic face of the alpha-helix. Three mutants contained insertions of leucine residues between the charged residues, causing a disturbance of the amphipathic character of the alpha-helix. The effect of the mutations on virus viability was assayed by transfection of cells with copy RNA transcripts. The effect on positive-strand RNA replication was examined by introduction of the mutations in a subgenomic luciferase replicon and analysis of luciferase accumulation following the transfection of BGM cells with RNA transcripts. It is shown that both the amphipathy of the domain and the presence of cationic residues in the hydrophilic face of the alpha-helix are required for virus growth. Mutations that disturbed either one of these features caused defects in viral RNA synthesis. In vitro translation reactions and the analysis of viral protein synthesis in vivo demonstrated that the mutations did not affect synthesis and processing of the viral polyprotein. These results suggest that a cationic amphipathic alpha-helix is a major determinant for a function of protein 2B, and possibly its precursor 2BC, in viral RNA synthesis. The potential role of the amphipathic alpha-helix in the permeabilization of cellular membranes is discussed.
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Affiliation(s)
- F J van Kuppeveld
- Department of Medical Microbiology, University of Nijmegen, The Netherlands.
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van Kuppeveld FJ, Galama JM, Zoll J, Melchers WJ. Genetic analysis of a hydrophobic domain of coxsackie B3 virus protein 2B: a moderate degree of hydrophobicity is required for a cis-acting function in viral RNA synthesis. J Virol 1995; 69:7782-90. [PMID: 7494289 PMCID: PMC189721 DOI: 10.1128/jvi.69.12.7782-7790.1995] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Coxsackie B virus protein 2B contains near its C terminus a hydrophobic domain with an amino acid composition that is characteristic for transmembrane regions. A molecular genetic approach was followed to define the role of this domain in virus reproduction and to study the structural and hydrophobic requirements of the domain. Nine substitution mutations were introduced in an infectious cDNA clone of coxsackie B3 virus. The effects of the mutations were studied in vivo by transfection of Buffalo green monkey cells with copy RNA transcripts. The results reported here suggest that a critical degree of hydrophobicity of the domain is essential for virus growth. The mutations S77M, C75M, I64S, and V66S, which caused either a small increase or decrease in mean hydrophobicity, yielded viable viruses. The double mutations S77M/C75M and I64S/V6-6S, which caused a more pronounced increase or decrease in hydrophobicity, were nonviable. Negatively charged residues (mutations A71E, I73E, and A71E/I73E) abolished virus growth. The mutations had no effect on the synthesis and processing of the viral polyprotein. Replication and complementation were studied by using a subgenomic coxsackievirus replicon containing the luciferase gene in place of the capsid coding region. Analysis of luciferase accumulation demonstrated that the mutations cause primary defects in viral RNA synthesis that cannot be complemented by wild-type protein 2B provided in trans. The hydrophobic domain is predicted by computer analysis to form a multimeric transmembrane helix. The proposed interaction with the membrane and the implications of the mutations on this interaction are discussed.
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Affiliation(s)
- F J van Kuppeveld
- Department of Medical Microbiology, University of Nijmegen, The Netherlands
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Amsler C, Armstrong DS, Augustin I, Baker CA, Barnett BM, Batty CJ, Beuchert K, Birien P, Blüm P, Bossingham R, Braune K, Brose J, Bugg DV, Burchell M, Case T, Cooper A, Cramer O, Crowe KM, Degener T, Dietz HP, Dombrowski SV, Doser M, Dünnweber W, Engelhardt D, Englert M, Faessler MA, Felix C, Hackmann R, Haddock RP, Heinsius FH, Herz M, Hessey NP, Hidas P, Illinger P, Jamnik D, Kalinowsky H, Kämmle B, Kiel T, Kisiel J, Klempt E, Kobel M, Koch H, Kolo C, Königsmann K, Kuhn J, Kunze M, Lakata M, Landua R, Lüdemann J, Matthäy H, Merkel M, Merlo JP, Meyer CA, Montanet L, Noble A, Ould-Saada F, Peters K, Pinder CN, Pinter G, Ravndal S, Schäfer E, Schmidt P, Spanier S, Stöck H, Straßburger C, Strohbusch U, Suffert M, Thoma U, Urner D, Völcker C, Walter F, Walther D, Wiedner U, Winter N, Zoll J, Zou BS, Zupančič Č. First observations of Pontecorvo reactions with a recoiling neutron. ACTA ACUST UNITED AC 1995. [DOI: 10.1007/bf01290916] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Verweij PE, Meis JF, van den Hurk P, Zoll J, Samson RA, Melchers WJ. Phylogenetic relationships of five species of Aspergillus and related taxa as deduced by comparison of sequences of small subunit ribosomal RNA. J Med Vet Mycol 1995; 33:185-90. [PMID: 7666299 DOI: 10.1080/02681219580000381] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The nucleotide sequences of the genes encoding the 18S rRNA of Aspergillus flavus, A. nidulans, A. terreus and A. niger were elucidated and aligned to the sequences of A. fumigatus. In addition, the 18S rRNA sequences of the V4-V9 region of morphologically similar filamentous fungi, e.g. Penicillium chrysogenum, P. marneffei and Paecilomyces variotii, were elucidated. Phylogenetic analysis and comparison showed a very close intergeneric relationship of the genus Aspergillus to species of the genera Paecilomyces and Penicillium. However, the sequenced Aspergillus species also showed a very close relationship to Eurotium rubrum and Monascus purpureus. Phylogenetic analysis of fungal 18S rRNA sequences divided the general Aspergillus, Penicillium and Paecilomyces into two coherent clusters and showed a close intergeneric relationship which is in keeping with the existing morphological and taxonomic classification.
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Affiliation(s)
- P E Verweij
- Department of Medical Microbiology, University Hospital Nijmegen, The Netherlands
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Melchers W, Zoll J, van Kuppeveld F, Swanink C, Galama J. There is no evidence for persistent enterovirus infections in chronic medical conditions in humans. Rev Med Virol 1994. [DOI: 10.1002/rmv.1980040402] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
To analyse the intratypic genome variability of coxsackievirus B1, 17 coxsackievirus B1 isolates were collected over a period of 10 years. Nucleotide sequences of the 2A coding region of the various coxsackievirus B1 isolates and known sequences of other enteroviruses were compared. The maximum diversity observed within the entire group of coxsackievirus B1 isolates was 25%. Comparison of deduced amino acid sequences revealed a maximum diversity of 5%. Phylogenetic analysis demonstrates a close genetic relationship between these clinical isolates and the other different coxsackievirus B serotypes. Further analysis of nucleotide and amino acid sequences of the 2A region of known enteroviruses demonstrated that the genus enterovirus can be subdivided into a coxsackievirus B-like group, including the coxsackie B viruses, coxsackievirus A9, echovirus 11 and swine vesicular disease virus, and a poliovirus-like group including the polioviruses 1 to 3, and the coxsackieviruses A21 and A24. Enterovirus type 70 and bovine enterovirus represent distinct groups. The 2A coding region of coxsackievirus B1 strains cannot be distinguished from that of other members of the coxsackievirus B-like group. Although conservation of the overall amino acid sequence was almost limited to residues essential for proposed enzymatic activity, the predicted secondary structures were well conserved within the genus enterovirus.
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Affiliation(s)
- J Zoll
- Department of Medical Microbiology, University of Nijmegen, The Netherlands
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Abstract
Cardiovirus specific sequences located in the 5' NTR are used to amplify viral RNA by PCR. General primers were selected for the amplification of cardioviruses, including encephalomyocarditis virus (EMCV), mengovirus and Theiler's murine encephalomyelitis virus (TMEV. Additionally, ECHO virus type 22, an atypical enterovirus, could also be detected with the general cardiovirus primers. An internal encephalomyocarditis virus specific probe and a general cardiovirus probe are used to discriminate EMCV from other cardioviruses. The sensitivity of the PCR was determined at 10 pfu after hybridization with an internal oligonucleotide probe. Specificity was tested with a broad range of picornaviruses and other nonrelated RNA and DNA viruses. The applicability of the assay was demonstrated by the detection of TMEV RNA in tissue samples from experimentally-infected mice.
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Affiliation(s)
- J Zoll
- University of Nijmegen, Department of Medical Microbiology, The Netherlands
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Abstract
The persistence of coxsackievirus B1 in the muscles of mice with coxsackievirus B1-induced chronic myositis was investigated. Neonatal CD1 Swiss mice were inoculated with a myositis-causing variant of coxsackievirus B1 (Tucson strain). Hamstring muscle samples of diseased mice obtained at various times after inoculation were examined for the presence of infectious virus, viral RNA and histological abnormalities. Viral RNA was detected up to 4 weeks after initiation of infection, whereas virus could be isolated from hamstring muscles for up to 2 weeks. Thereafter no sign of infection was demonstrated although histological abnormalities remained present for the entire observation period of 16 weeks. That viral RNA was detectable for only 2 weeks after tissues became negative for infectious virus suggests that the infection slowly waned rather than the viral RNA persisting. Hence, it is concluded that coxsackievirus B1 plays an essential role in the initiation of myositis but not in the maintenance of the chronic phase.
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Affiliation(s)
- J Zoll
- Department of Medical Microbiology, University of Nijmegen, The Netherlands
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Amsler C, Armstrong DS, Augustin I, Baker CA, Barnett BM, Batty CJ, Beuchert K, Birien P, Bistirlich J, Blum P, Bossingham R, Bossy H, Braune K, Brose J, Bugg DV, Burchell M, Case T, Chung SU, Cooper A, Crowe KM, Dietz HP, Dombrowski S, Doser M, Dünnweber W, Engelhardt D, Englert M, Faessler MA, Felix C, Folger G, Hackmann R, Haddock RP, Heinsius FH, Hessey NP, Hidas P, Illinger P, Jamnik D, Jávorfi Z, Kalinowsky H, Kämmle B, Kiel T, Kisiel J, Klempt E, Kobel M, Koch H, Kolo C, Königsmann K, Kunze M, Landua R, Lüdemann J, Matthaey H, Merkel M, Merlo JP, Meyer CA, Meyer-Berkhout U, Montanet L, Noble A, Ould-Saada F, Peters K, Pinter G, Ravndal S, Sanjari AH, Schäfer E, Schmid B, Schmidt P, Spanier S, Straßburger C, Strohbusch U, Suffert M, Urner D, Völcker C, Walter F, Walther D, Wiedner U, Winter N, Zoll J, Zupančič Č. Antiproton-proton annihilation at rest into two-body final states. ACTA ACUST UNITED AC 1993. [DOI: 10.1007/bf01560336] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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van Loon AM, van der Logt JT, Heessen FW, Heeren MC, Zoll J. Antibody-capture enzyme-linked immunosorbent assays that use enzyme-labelled antigen for detection of virus-specific immunoglobulin M, A and G in patients with varicella or herpes zoster. Epidemiol Infect 1992; 108:165-74. [PMID: 1312479 PMCID: PMC2272196 DOI: 10.1017/s095026880004961x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Antibody-capture enzyme-linked immunosorbent assays (AC-ELISA) which use enzyme-labelled antigen were developed for detection of varicella-zoster virus-(VZV) specific IgM, IgA and IgG antibody in patients with varicella or herpes zoster and in sera from healthy individuals. All 18 patients with varicella developed a VZV-IgM and a VZV-IgG response, 17 also a VZV-IgA response. In contrast, all 19 patients with herpes zoster were shown to be positive for VZV-IgA whereas only 13 of these reacted positively for VZV-IgM. A VZV-IgM response was detected in only two sera from 100 healthy individuals and an IgA response in only one. The presence of virus-specific IgA and IgG in the cerebrospinal fluid as determined by AC-ELISA was a useful indicator of VZV infection of the central nervous system. By AC-ELISA, VZV-IgG was detected predominantly in sera from patients with acute or recent VZV infection. Only 14 sera from 100 healthy individuals were positive for VZV-IgG by AC-ELISA, whereas all were positive by an indirect ELISA. These results indicate that AC-ELISA's may be useful assays for determination for acute or recurrent VZV infection, but are not suitable for determination of past infection with this virus.
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Affiliation(s)
- A M van Loon
- Department of Medical Microbiology, University of Nijmegen, The Netherlands
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