1
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Granata C, Caruana NJ, Botella J, Jamnick NA, Huynh K, Kuang J, Janssen HA, Reljic B, Mellett NA, Laskowski A, Stait TL, Frazier AE, Coughlan MT, Meikle PJ, Thorburn DR, Stroud DA, Bishop DJ. High-intensity training induces non-stoichiometric changes in the mitochondrial proteome of human skeletal muscle without reorganisation of respiratory chain content. Nat Commun 2021; 12:7056. [PMID: 34862379 PMCID: PMC8642543 DOI: 10.1038/s41467-021-27153-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022] Open
Abstract
Mitochondrial defects are implicated in multiple diseases and aging. Exercise training is an accessible, inexpensive therapeutic intervention that can improve mitochondrial bioenergetics and quality of life. By combining multiple omics techniques with biochemical and in silico normalisation, we removed the bias arising from the training-induced increase in mitochondrial content to unearth an intricate and previously undemonstrated network of differentially prioritised mitochondrial adaptations. We show that changes in hundreds of transcripts, proteins, and lipids are not stoichiometrically linked to the overall increase in mitochondrial content. Our findings suggest enhancing electron flow to oxidative phosphorylation (OXPHOS) is more important to improve ATP generation than increasing the abundance of the OXPHOS machinery, and do not support the hypothesis that training-induced supercomplex formation enhances mitochondrial bioenergetics. Our study provides an analytical approach allowing unbiased and in-depth investigations of training-induced mitochondrial adaptations, challenging our current understanding, and calling for careful reinterpretation of previous findings.
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Affiliation(s)
- Cesare Granata
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia.
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia.
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research, Heinrich Heine University, 40225, Düsseldorf, Germany.
| | - Nikeisha J Caruana
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
- Department of Biochemistry and Pharmacology and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Javier Botella
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
| | - Nicholas A Jamnick
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
- Metabolic Research Unit, School of Medicine and Institute for Mental and Physical Health and Clinical Translation (iMPACT), Deakin University, Geelong, VIC, Australia
| | - Kevin Huynh
- Baker Heart & Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - Jujiao Kuang
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
| | - Hans A Janssen
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia
| | - Boris Reljic
- Department of Biochemistry and Pharmacology and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, 3010, Australia
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, 3800, Melbourne, Australia
| | | | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Tegan L Stait
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
| | - Ann E Frazier
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Melinda T Coughlan
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
- Baker Heart & Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - Peter J Meikle
- Baker Heart & Diabetes Institute, Melbourne, VIC, 3004, Australia
| | - David R Thorburn
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, VIC, 3052, Australia
- Victorian Clinical Genetics Services, Royal Children's Hospital, Melbourne, VIC, 3052, Australia
| | - David A Stroud
- Department of Biochemistry and Pharmacology and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, 3010, Australia.
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, VIC, 3052, Australia.
| | - David J Bishop
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, 3011, Australia.
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2
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Zhuang A, Yang C, Liu Y, Tan Y, Bond ST, Walker S, Sikora T, Laskowski A, Sharma A, de Haan JB, Meikle PJ, Shimizu T, Coughlan MT, Calkin AC, Drew BG. SOD2 in skeletal muscle: New insights from an inducible deletion model. Redox Biol 2021; 47:102135. [PMID: 34598016 PMCID: PMC8487078 DOI: 10.1016/j.redox.2021.102135] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 01/01/2023] Open
Abstract
Metabolic conditions such as obesity, insulin resistance and glucose intolerance are frequently associated with impairments in skeletal muscle function and metabolism. This is often linked to dysregulation of homeostatic pathways including an increase in reactive oxygen species (ROS) and oxidative stress. One of the main sites of ROS production is the mitochondria, where the flux of substrates through the electron transport chain (ETC) can result in the generation of oxygen free radicals. Fortunately, several mechanisms exist to buffer bursts of intracellular ROS and peroxide production, including the enzymes Catalase, Glutathione Peroxidase and Superoxide Dismutase (SOD). Of the latter, there are two intracellular isoforms; SOD1 which is mostly cytoplasmic, and SOD2 which is found exclusively in the mitochondria. Developmental and chronic loss of these enzymes has been linked to disease in several studies, however the temporal effects of these disturbances remain largely unexplored. Here, we induced a post-developmental (8-week old mice) deletion of SOD2 in skeletal muscle (SOD2-iMKO) and demonstrate that 16 weeks of SOD2 deletion leads to no major impairment in whole body metabolism, despite these mice displaying alterations in aspects of mitochondrial abundance and voluntary ambulatory movement. This is likely partly explained by the suggestive data that a compensatory response may exist from other redox enzymes, including catalase and glutathione peroxidases. Nevertheless, we demonstrated that inducible SOD2 deletion impacts on specific aspects of muscle lipid metabolism, including the abundance of phospholipids and phosphatidic acid (PA), the latter being a key intermediate in several cellular signaling pathways. Thus, our findings suggest that post-developmental deletion of SOD2 induces a more subtle phenotype than previous embryonic models have shown, allowing us to highlight a previously unrecognized link between SOD2, mitochondrial function and bioactive lipid species including PA.
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Affiliation(s)
- Aowen Zhuang
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia; Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
| | - Christine Yang
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia
| | - Yingying Liu
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia
| | - Yanie Tan
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia
| | - Simon T Bond
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia; Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
| | - Shannen Walker
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia
| | - Tim Sikora
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia
| | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, 3004, Australia
| | - Arpeeta Sharma
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia
| | - Judy B de Haan
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia; Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia; Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, 3083, Australia; Faculty of Science, Engineering and Technology, Swinburne University, Melbourne, 3122, Australia
| | - Peter J Meikle
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia; Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
| | - Takahiko Shimizu
- Aging Stress Response Research Project Team, National Center for Geriatrics and Gerontology, Obu, Aichi 474-8511, Japan
| | - Melinda T Coughlan
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Department of Diabetes, Central Clinical School, Monash University, Melbourne, 3004, Australia
| | - Anna C Calkin
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia; Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
| | - Brian G Drew
- Baker Heart & Diabetes Institute, Melbourne, 3004, Australia; Central Clinical School, Monash University, Melbourne, 3004, Australia; Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia.
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3
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Alfano R, Pezoa S, Pennybaker A, Hazi N, Becheau O, Laskowski A. Efficient lentiviral vector production in a chemically defined, blood-free and serum-free medium, scalable to the iCELLis® technology. Cytotherapy 2021. [DOI: 10.1016/s1465324921005405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Alfano R, Pezoa S, Pennybaker A, Hazi N, Becheau O, Laskowski A. Application of aber’s FUTURA® biomass probes to inform transfection and cell lysis in iCELLis® bioreactor-based AAV manufacturing. Cytotherapy 2021. [DOI: 10.1016/s1465324921005399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Thallas-Bonke V, Tan SM, Lindblom RS, Snelson M, Granata C, Jha JC, Sourris KC, Laskowski A, Watson A, Tauc M, Rubera I, Zheng G, Shah AM, Harris DCH, Elbatreek MH, Kantharidis P, Cooper ME, Jandeleit-Dahm K, Coughlan MT. Targeted deletion of nicotinamide adenine dinucleotide phosphate oxidase 4 from proximal tubules is dispensable for diabetic kidney disease development. Nephrol Dial Transplant 2020; 36:988-997. [PMID: 33367789 DOI: 10.1093/ndt/gfaa376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The nicotinamide adenine dinucleotide phosphate oxidase isoform 4 (Nox4) mediates reactive oxygen species (ROS) production and renal fibrosis in diabetic kidney disease (DKD) at the level of the podocyte. However, the mitochondrial localization of Nox4 and its role as a mitochondrial bioenergetic sensor has recently been reported. Whether Nox4 drives pathology in DKD within the proximal tubular compartment, which is densely packed with mitochondria, is not yet known. METHODS We generated a proximal tubular-specific Nox4 knockout mouse model by breeding Nox4flox/flox mice with mice expressing Cre recombinase under the control of the sodium-glucose cotransporter-2 promoter. Subsets of Nox4ptKO mice and their Nox4flox/flox littermates were injected with streptozotocin (STZ) to induce diabetes. Mice were followed for 20 weeks and renal injury was assessed. RESULTS Genetic ablation of proximal tubular Nox4 (Nox4ptKO) resulted in no change in renal function and histology. Nox4ptKO mice and Nox4flox/flox littermates injected with STZ exhibited the hallmarks of DKD, including hyperfiltration, albuminuria, renal fibrosis and glomerulosclerosis. Surprisingly, diabetes-induced renal injury was not improved in Nox4ptKO STZ mice compared with Nox4flox/flox STZ mice. Although diabetes conferred ROS overproduction and increased the mitochondrial oxygen consumption rate, proximal tubular deletion of Nox4 did not normalize oxidative stress or mitochondrial bioenergetics. CONCLUSIONS Taken together, these results demonstrate that genetic deletion of Nox4 from the proximal tubules does not influence DKD development, indicating that Nox4 localization within this highly energetic compartment is dispensable for chronic kidney disease pathogenesis in the setting of diabetes.
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Affiliation(s)
| | - Sih Min Tan
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Runa S Lindblom
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Matthew Snelson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Cesare Granata
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
| | - Jay Chandra Jha
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karly C Sourris
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Anna Watson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Michel Tauc
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Isabelle Rubera
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Guoping Zheng
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Ajay M Shah
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine and Sciences, London, UK
| | - David C H Harris
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Mahmoud H Elbatreek
- Department of Pharmacology and Personalised Medicine, School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Phillip Kantharidis
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karin Jandeleit-Dahm
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,German Diabetes Centre, Leibniz Centre for Diabetes Research, Heinrich Heine University, Duesseldorf, Germany
| | - Melinda T Coughlan
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
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6
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Lee M, Harley G, Katerelos M, Gleich K, Sullivan MA, Laskowski A, Coughlan M, Fraser SA, Mount PF, Power DA. Mutation of regulatory phosphorylation sites in PFKFB2 worsens renal fibrosis. Sci Rep 2020; 10:14531. [PMID: 32884050 PMCID: PMC7471692 DOI: 10.1038/s41598-020-71475-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 04/02/2020] [Accepted: 08/12/2020] [Indexed: 11/13/2022] Open
Abstract
Fatty acid oxidation is the major energy pathway used by the kidney, although glycolysis becomes more important in the low oxygen environment of the medulla. Fatty acid oxidation appears to be reduced in renal fibrosis, and drugs that reverse this improve fibrosis. Expression of glycolytic genes is more variable, but some studies have shown that inhibiting glycolysis reduces renal fibrosis. To address the role of glycolysis in renal fibrosis, we have used a genetic approach. The crucial control point in the rate of glycolysis is 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase. Phosphorylation of the kidney isoform, PFKFB2, on residues Ser468 and Ser485 stimulates glycolysis and is the most important mechanism regulating glycolysis. We generated transgenic mice with inactivating mutations of Ser468 and Ser485 in PFKFB2 (PFKFB2 KI mice). These mutations were associated with a reduced ability to increase glycolysis in primary cultures of renal tubular cells from PFKFB2 KI mice compared to WT cells. This was associated in PFKFB2 KI mice with increased renal fibrosis, which was more severe in the unilaternal ureteric obstruction (UUO) model compared with the folic acid nephropathy (FAN) model. These studies show that phosphorylation of PFKFB2 is important in limiting renal fibrosis after injury, indicating that the ability to regulate and maintain adequate glycolysis in the kidney is crucial for renal homeostasis. The changes were most marked in the UUO model, probably reflecting a greater effect on distal renal tubules and the greater importance of glycolysis in the distal nephron.
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Affiliation(s)
- Mardiana Lee
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, VIC, 3084, Australia.,Department of Medicine, The University of Melbourne, Heidelberg, VIC, Australia
| | - Geoff Harley
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, VIC, 3084, Australia.,Department of Medicine, The University of Melbourne, Heidelberg, VIC, Australia
| | - Marina Katerelos
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, VIC, 3084, Australia
| | - Kurt Gleich
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, VIC, 3084, Australia
| | - Mitchell A Sullivan
- Mater Research Institute-the University of Queensland, Translational Research Institute, Woolloongabba, QLD, Australia
| | - Adrienne Laskowski
- Glycation, Nutrition and Metabolism Laboratory, Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Melinda Coughlan
- Glycation, Nutrition and Metabolism Laboratory, Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Scott A Fraser
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, VIC, 3084, Australia
| | - Peter F Mount
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, VIC, 3084, Australia.,Department of Medicine, The University of Melbourne, Heidelberg, VIC, Australia.,The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, VIC, Australia
| | - David A Power
- Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, VIC, 3084, Australia. .,Department of Medicine, The University of Melbourne, Heidelberg, VIC, Australia. .,The Institute for Breathing and Sleep (IBAS), Austin Health, Heidelberg, VIC, Australia.
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7
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Sable J, Amiglir A, Daniels C, Hazi N, Laskowski A. Oncolytic virus production using MRC5 cells in Pall's iCELLis nano bioreactor is equivalent in high and low compaction beds. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.310] [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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8
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Alfano R, Pennybaker A, Laskowski A, Lundeen T. Implementation of the aber biomass probe in Pall's iCELLis nano bioreactor provides a robust and reproducible method to assess cell density. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Laskowski A, Gupta S, Lundeen T, Makovich O, Melgar J, Pellegrino N. Factors affecting kLa in Pall's iCELLis bioreactor. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.307] [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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10
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Tan SM, Ziemann M, Thallas-Bonke V, Snelson M, Kumar V, Laskowski A, Nguyen TV, Huynh K, Clarke MV, Libianto R, Baker ST, Skene A, Power DA, MacIsaac RJ, Henstridge DC, Wetsel RA, El-Osta A, Meikle PJ, Wilson SG, Forbes JM, Cooper ME, Ekinci EI, Woodruff TM, Coughlan MT. Complement C5a Induces Renal Injury in Diabetic Kidney Disease by Disrupting Mitochondrial Metabolic Agility. Diabetes 2020; 69:83-98. [PMID: 31624141 DOI: 10.2337/db19-0043] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [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] [Received: 01/14/2019] [Accepted: 10/08/2019] [Indexed: 11/13/2022]
Abstract
The sequelae of diabetes include microvascular complications such as diabetic kidney disease (DKD), which involves glucose-mediated renal injury associated with a disruption in mitochondrial metabolic agility, inflammation, and fibrosis. We explored the role of the innate immune complement component C5a, a potent mediator of inflammation, in the pathogenesis of DKD in clinical and experimental diabetes. Marked systemic elevation in C5a activity was demonstrated in patients with diabetes; conventional renoprotective agents did not therapeutically target this elevation. C5a and its receptor (C5aR1) were upregulated early in the disease process and prior to manifest kidney injury in several diverse rodent models of diabetes. Genetic deletion of C5aR1 in mice conferred protection against diabetes-induced renal injury. Transcriptomic profiling of kidney revealed diabetes-induced downregulation of pathways involved in mitochondrial fatty acid metabolism. Interrogation of the lipidomics signature revealed abnormal cardiolipin remodeling in diabetic kidneys, a cardinal sign of disrupted mitochondrial architecture and bioenergetics. In vivo delivery of an orally active inhibitor of C5aR1 (PMX53) reversed the phenotypic changes and normalized the renal mitochondrial fatty acid profile, cardiolipin remodeling, and citric acid cycle intermediates. In vitro exposure of human renal proximal tubular epithelial cells to C5a led to altered mitochondrial respiratory function and reactive oxygen species generation. These experiments provide evidence for a pivotal role of the C5a/C5aR1 axis in propagating renal injury in the development of DKD by disrupting mitochondrial agility, thereby establishing a new immunometabolic signaling pathway in DKD.
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Affiliation(s)
- Sih Min Tan
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Mark Ziemann
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
- School of Life and Environmental Sciences, Deakin University, Geelong, Victoria, Australia
| | - Vicki Thallas-Bonke
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Matthew Snelson
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Vinod Kumar
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | | | - Kevin Huynh
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Michele V Clarke
- Department of Endocrinology, Austin Health, Melbourne, Victoria, Australia
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Renata Libianto
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Scott T Baker
- Department of Endocrinology, Austin Health, Melbourne, Victoria, Australia
| | - Alison Skene
- Department of Anatomical Pathology, Austin Health, Melbourne, Victoria, Australia
| | - David A Power
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Department of Nephrology and Institute for Breathing and Sleep, Austin Health, Melbourne, Victoria, Australia
| | - Richard J MacIsaac
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Department of Endocrinology and Diabetes, St Vincent's Hospital, Melbourne, Victoria, Australia
| | | | - Rick A Wetsel
- Research Center for Immunology and Autoimmune Diseases, Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas-Houston, Houston, TX
| | - Assam El-Osta
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Peter J Meikle
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Scott G Wilson
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Department of Renal Medicine, Alfred Health, Melbourne, Victoria, Australia
| | - Josephine M Forbes
- Glycation and Diabetes Group, Mater Research Institute-The University of Queensland, Translational Research Institute, Woolloongabba, Queensland, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
| | - Elif I Ekinci
- Department of Endocrinology, Austin Health, Melbourne, Victoria, Australia
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Trent M Woodruff
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Melinda T Coughlan
- Department of Diabetes, Central Clinical School, Alfred Medical Research and Education Precinct, Monash University, Melbourne, Victoria, Australia
- Baker Heart and Diabetes Institute, Melbourne, Australia
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11
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GRANATA C, Thallas-Bonke V, Qin C, Laskowski A, Jap E, Ramm G, Cooper M, Stroud D, Ritchie R, Coughlan M. SAT-105 GLUCOSE-DEPENDENT MITOCHONDRIAL ALTERATIONS IN DIABETIC KIDNEY DISEASE. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.133] [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: 10/26/2022] Open
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12
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Loetsch C, Warren J, Laskowski A, Vazquez-Lombardi R, Jandl C, Langley DB, Christ D, Thorburn DR, Ryugo DK, Sprent J, Batten M, King C. Cytosolic Recognition of RNA Drives the Immune Response to Heterologous Erythrocytes. Cell Rep 2018; 21:1624-1638. [PMID: 29117566 DOI: 10.1016/j.celrep.2017.10.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 08/07/2017] [Accepted: 10/11/2017] [Indexed: 12/14/2022] Open
Abstract
The archetypal T cell-dependent antigen is sheep red blood cells (SRBCs), which have defined much of what we know about humoral immunity. Early studies using solubilized or sonicated SRBCs argued that the intact structure of SRBCs was important for optimal antibody responses. However, the reason for the requirement of intact SRBCs for the response to polyvalent protein antigen remained unknown. Here, we report that the immune response to SRBCs is driven by cytosolic recognition of SRBC RNA through the RIG-I-like receptor (RLR)-mitochondrial anti-viral signaling adaptor (MAVS) pathway. Following the uptake of SRBCs by antigen-presenting cells, the MAVS signaling complex governs the differentiation of both T follicular cells and antibody-producing B cells. Importantly, the involvement of the RLR-MAVS pathway precedes that of endosomal Toll-like receptor pathways, yet both are required for optimal effect.
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Affiliation(s)
- Claudia Loetsch
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - Joanna Warren
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia
| | - Adrienne Laskowski
- Murdoch Children's Research Institute, The Royal Children's Hospital, Flemington Rd., Parkville, VIC 3052, Australia
| | - Rodrigo Vazquez-Lombardi
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - Christoph Jandl
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - David B Langley
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - Daniel Christ
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - David R Thorburn
- Murdoch Children's Research Institute, The Royal Children's Hospital, Flemington Rd., Parkville, VIC 3052, Australia; Department of Paediatrics, University of Melbourne, Parkville VIC 3010, Australia
| | - David K Ryugo
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - Jonathan Sprent
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - Marcel Batten
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia
| | - Cecile King
- Department of Immunology, Garvan Institute of Medical Research, 384 Victoria St., Darlinghurst, NSW 2010, Australia; St Vincent's Clinical School, Department of Medicine, University of New South Wales, Sydney, NSW 2010, Australia.
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13
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Abstract
BACKGROUND Complex I is the first enzyme complex in the mitochondrial respiratory chain, responsible for generating a large fraction of energy during oxidative phosphorylation. Recently, it has been identified that complex I deficiency can result in increased inflammation due to the generation of reactive oxygen species by innate immune cells. As a reduction in complex I activity has been demonstrated in human stomachs with atrophic gastritis, we investigated whether complex I deficiency could influence Helicobacter pylori pathogenesis. MATERIALS AND METHODS Ndufs6gt/gt mice have a partial complex I deficiency. Complex I activity was quantified in the stomachs and immune cells of Ndufs6gt/gt mice by spectrophotometric assays. Ndufs6gt/gt mice were infected with H. pylori and bacterial colonization assessed by colony-forming assay, gastritis assessed histologically, and H. pylori -specific humoral response quantified by ELISA. RESULTS The immune cells and stomachs of Ndufs6gt/gt mice were found to have significantly decreased complex I activity, validating the model for assessing the effects of complex I deficiency in H. pylori infection. However, there was no observable effect of complex I deficiency on either H. pylori colonization, the resulting gastritis, or the humoral response. CONCLUSIONS Although complex I activity is described to suppress innate immune responses and is decreased during atrophic gastritis in humans, our data suggest it does not affect H. pylori pathogenesis.
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Affiliation(s)
- Garrett Z Ng
- Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC 3052, Australia.,Centre for Animal Biotechnology, School of Veterinary and Agricultural Science, University of Melbourne, Parkville, VIC 3010, Australia
| | - Bi-Xia Ke
- Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC 3052, Australia
| | - Adrienne Laskowski
- Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC 3052, Australia
| | - David R Thorburn
- Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC 3052, Australia.,Victorian Clinical Genetics Services, The Royal Children's Hospital, Parkville, VIC 3052, Australia.,Department of Paediatrics, University of Melbourne, Parkville, VIC 3010, Australia
| | - Philip Sutton
- Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, VIC 3052, Australia.,Centre for Animal Biotechnology, School of Veterinary and Agricultural Science, University of Melbourne, Parkville, VIC 3010, Australia.,Department of Paediatrics, University of Melbourne, Parkville, VIC 3010, Australia
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14
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Coughlan MT, Higgins GC, Nguyen TV, Penfold SA, Thallas-Bonke V, Tan SM, Ramm G, Van Bergen NJ, Henstridge DC, Sourris KC, Harcourt BE, Trounce IA, Robb PM, Laskowski A, McGee SL, Genders AJ, Walder K, Drew BG, Gregorevic P, Qian H, Thomas MC, Jerums G, Macisaac RJ, Skene A, Power DA, Ekinci EI, Wijeyeratne XW, Gallo LA, Herman-Edelstein M, Ryan MT, Cooper ME, Thorburn DR, Forbes JM. Deficiency in Apoptosis-Inducing Factor Recapitulates Chronic Kidney Disease via Aberrant Mitochondrial Homeostasis. Diabetes 2016; 65:1085-98. [PMID: 26822084 DOI: 10.2337/db15-0864] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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] [Received: 06/24/2015] [Accepted: 01/10/2016] [Indexed: 11/13/2022]
Abstract
Apoptosis-inducing factor (AIF) is a mitochondrial flavoprotein with dual roles in redox signaling and programmed cell death. Deficiency in AIF is known to result in defective oxidative phosphorylation (OXPHOS), via loss of complex I activity and assembly in other tissues. Because the kidney relies on OXPHOS for metabolic homeostasis, we hypothesized that a decrease in AIF would result in chronic kidney disease (CKD). Here, we report that partial knockdown of Aif in mice recapitulates many features of CKD, in association with a compensatory increase in the mitochondrial ATP pool via a shift toward mitochondrial fusion, excess mitochondrial reactive oxygen species production, and Nox4 upregulation. However, despite a 50% lower AIF protein content in the kidney cortex, there was no loss of complex I activity or assembly. When diabetes was superimposed onto Aif knockdown, there were extensive changes in mitochondrial function and networking, which augmented the renal lesion. Studies in patients with diabetic nephropathy showed a decrease in AIF within the renal tubular compartment and lower AIFM1 renal cortical gene expression, which correlated with declining glomerular filtration rate. Lentiviral overexpression of Aif1m rescued glucose-induced disruption of mitochondrial respiration in human primary proximal tubule cells. These studies demonstrate that AIF deficiency is a risk factor for the development of diabetic kidney disease.
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Affiliation(s)
- Melinda T Coughlan
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia Department of Medicine, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia Department of Epidemiology and Preventive Medicine, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Gavin C Higgins
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Tuong-Vi Nguyen
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Sally A Penfold
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | | | - Sih Min Tan
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia Department of Medicine, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Georg Ramm
- Membrane Biology Group, Department of Biochemistry and Molecular Biology, Monash University, Clayton Campus, Victoria, Australia
| | - Nicole J Van Bergen
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
| | | | - Karly C Sourris
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia Department of Medicine, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Brooke E Harcourt
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Ian A Trounce
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
| | - Portia M Robb
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Adrienne Laskowski
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Sean L McGee
- Metabolic Research Unit, Deakin University, Waurn Ponds, Victoria, Australia
| | - Amanda J Genders
- Metabolic Research Unit, Deakin University, Waurn Ponds, Victoria, Australia
| | - Ken Walder
- Metabolic Research Unit, Deakin University, Waurn Ponds, Victoria, Australia
| | - Brian G Drew
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Paul Gregorevic
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Hongwei Qian
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Merlin C Thomas
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - George Jerums
- Endocrine Centre, Austin Health, Repatriation Campus, Heidelberg West, Victoria, Australia
| | - Richard J Macisaac
- Departments of Endocrinology and Diabetes, St Vincent's Hospital Melbourne and The University of Melbourne, Fitzroy, Victoria, Australia
| | - Alison Skene
- Department of Anatomical Pathology, Austin Health, Heidelberg, Victoria, Australia
| | - David A Power
- Department of Nephrology and Institute for Breathing and Sleep, Austin Health, Heidelberg, Victoria, Australia Department of Medicine, Austin Health and The University of Melbourne, Parkville, Victoria, Australia
| | - Elif I Ekinci
- Endocrine Centre, Austin Health, Repatriation Campus, Heidelberg West, Victoria, Australia Department of Medicine, Austin Health and The University of Melbourne, Parkville, Victoria, Australia Menzies School of Health Research, Darwin, Northern Territory, Australia
| | | | - Linda A Gallo
- Glycation and Diabetes Group, Mater Research Institute-University of Queensland, Translational Research Institute, Woolloongabba, South Brisbane, Queensland, Australia
| | - Michal Herman-Edelstein
- The Felsenstein Medical Research Center and Department of Nephrology and Hypertension, Rabin Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Michael T Ryan
- Mitochondria Laboratory, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Mark E Cooper
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia Department of Medicine, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - David R Thorburn
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Josephine M Forbes
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia Glycation and Diabetes Group, Mater Research Institute-University of Queensland, Translational Research Institute, Woolloongabba, South Brisbane, Queensland, Australia School of Medicine, Mater Clinical School, The University of Queensland, St. Lucia, Queensland, Australia
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15
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Johnson J, Lee W, Frazier AE, Vaghjiani V, Laskowski A, Rodriguez AL, Cagnone GL, McKenzie M, White SJ, Nisbet DR, Thorburn DR, St. John JC. Deletion of the Complex I Subunit NDUFS4 Adversely Modulates Cellular Differentiation. Stem Cells Dev 2016; 25:239-50. [DOI: 10.1089/scd.2015.0211] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Jacqueline Johnson
- Centre for Genetic Diseases, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - William Lee
- Centre for Genetic Diseases, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - Ann E. Frazier
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia
- Department of Pediatrics, University of Melbourne, Melbourne, Australia
| | - Vijesh Vaghjiani
- Centre for Genetic Diseases, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - Adrienne Laskowski
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia
| | | | - Gael L. Cagnone
- Centre for Genetic Diseases, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - Matthew McKenzie
- Centre for Genetic Diseases, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - Stefan J. White
- Centre for Genetic Diseases, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - David R. Nisbet
- Research School of Engineering, Australian National University, Canberra, Australia
| | - David R. Thorburn
- Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia
- Department of Pediatrics, University of Melbourne, Melbourne, Australia
| | - Justin C. St. John
- Centre for Genetic Diseases, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
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16
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Forbes JM, Ke BX, Nguyen TV, Henstridge DC, Penfold SA, Laskowski A, Sourris KC, Groschner LN, Cooper ME, Thorburn DR, Coughlan MT. Deficiency in mitochondrial complex I activity due to Ndufs6 gene trap insertion induces renal disease. Antioxid Redox Signal 2013; 19:331-43. [PMID: 23320803 DOI: 10.1089/ars.2012.4719] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AIMS Defects in the activity of enzyme complexes of the mitochondrial respiratory chain are thought to be responsible for several disorders, including renal impairment. Gene mutations that result in complex I deficiency are the most common oxidative phosphorylation disorders in humans. To determine whether an abnormality in mitochondrial complex I per se is associated with development of renal disease, mice with a knockdown of the complex I gene, Ndufs6 were studied. RESULTS Ndufs6 mice had a partial renal cortical complex I deficiency; Ndufs6gt/gt, 32% activity and Ndufs6gt/+, 83% activity compared with wild-type mice. Both Ndufs6gt/+ and Ndufs6gt/gt mice exhibited hallmarks of renal disease, including albuminuria, urinary excretion of kidney injury molecule-1 (Kim-1), renal fibrosis, and changes in glomerular volume, with decreased capacity to generate mitochondrial ATP and superoxide from substrates oxidized via complex I. However, more advanced renal defects in Ndufs6gt/gt mice were observed in the context of a disruption in the inner mitochondrial electrochemical potential, 3-nitrotyrosine-modified mitochondrial proteins, increased urinary excretion of 15-isoprostane F2t, and up-regulation of antioxidant defence. Juvenile Ndufs6gt/gt mice also exhibited signs of early renal impairment with increased urinary Kim-1 excretion and elevated circulating cystatin C. INNOVATION We have identified renal impairment in a mouse model of partial complex I deficiency, suggesting that even modest deficits in mitochondrial respiratory chain function may act as risk factors for chronic kidney disease. CONCLUSION These studies identify for the first time that complex I deficiency as the result of interruption of Ndufs6 is an independent cause of renal impairment.
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Affiliation(s)
- Josephine M Forbes
- Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart & Diabetes Institute, Melbourne, Australia
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17
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Calvo SE, Compton AG, Hershman SG, Lim SC, Lieber DS, Tucker EJ, Laskowski A, Garone C, Liu S, Jaffe DB, Christodoulou J, Fletcher JM, Bruno DL, Goldblatt J, Dimauro S, Thorburn DR, Mootha VK. Molecular diagnosis of infantile mitochondrial disease with targeted next-generation sequencing. Sci Transl Med 2012; 4:118ra10. [PMID: 22277967 DOI: 10.1126/scitranslmed.3003310] [Citation(s) in RCA: 338] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Advances in next-generation sequencing (NGS) promise to facilitate diagnosis of inherited disorders. Although in research settings NGS has pinpointed causal alleles using segregation in large families, the key challenge for clinical diagnosis is application to single individuals. To explore its diagnostic use, we performed targeted NGS in 42 unrelated infants with clinical and biochemical evidence of mitochondrial oxidative phosphorylation disease. These devastating mitochondrial disorders are characterized by phenotypic and genetic heterogeneity, with more than 100 causal genes identified to date. We performed "MitoExome" sequencing of the mitochondrial DNA (mtDNA) and exons of ~1000 nuclear genes encoding mitochondrial proteins and prioritized rare mutations predicted to disrupt function. Because patients and healthy control individuals harbored a comparable number of such heterozygous alleles, we could not prioritize dominant-acting genes. However, patients showed a fivefold enrichment of genes with two such mutations that could underlie recessive disease. In total, 23 of 42 (55%) patients harbored such recessive genes or pathogenic mtDNA variants. Firm diagnoses were enabled in 10 patients (24%) who had mutations in genes previously linked to disease. Thirteen patients (31%) had mutations in nuclear genes not previously linked to disease. The pathogenicity of two such genes, NDUFB3 and AGK, was supported by complementation studies and evidence from multiple patients, respectively. The results underscore the potential and challenges of deploying NGS in clinical settings.
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Affiliation(s)
- Sarah E Calvo
- Center for Human Genetic Research and Department of Molecular Biology, Massachusetts General Hospital, 185 Cambridge Street, Sixth Floor, Boston, MA 02114, USA
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18
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Bird M, Frazier A, Laskowski A, Thorburn D. Functional analysis of astrocytes in a complex I deficient mouse model. Mitochondrion 2012. [DOI: 10.1016/j.mito.2012.07.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Leong DW, Komen JC, Hewitt CA, Arnaud E, McKenzie M, Phipson B, Bahlo M, Laskowski A, Kinkel SA, Davey GM, Heath WR, Voss AK, Zahedi RP, Pitt JJ, Chrast R, Sickmann A, Ryan MT, Smyth GK, Thorburn DR, Scott HS. Proteomic and metabolomic analyses of mitochondrial complex I-deficient mouse model generated by spontaneous B2 short interspersed nuclear element (SINE) insertion into NADH dehydrogenase (ubiquinone) Fe-S protein 4 (Ndufs4) gene. J Biol Chem 2012; 287:20652-63. [PMID: 22535952 PMCID: PMC3370248 DOI: 10.1074/jbc.m111.327601] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 04/05/2012] [Indexed: 01/11/2023] Open
Abstract
Eukaryotic cells generate energy in the form of ATP, through a network of mitochondrial complexes and electron carriers known as the oxidative phosphorylation system. In mammals, mitochondrial complex I (CI) is the largest component of this system, comprising 45 different subunits encoded by mitochondrial and nuclear DNA. Humans diagnosed with mutations in the gene NDUFS4, encoding a nuclear DNA-encoded subunit of CI (NADH dehydrogenase ubiquinone Fe-S protein 4), typically suffer from Leigh syndrome, a neurodegenerative disease with onset in infancy or early childhood. Mitochondria from NDUFS4 patients usually lack detectable NDUFS4 protein and show a CI stability/assembly defect. Here, we describe a recessive mouse phenotype caused by the insertion of a transposable element into Ndufs4, identified by a novel combined linkage and expression analysis. Designated Ndufs4(fky), the mutation leads to aberrant transcript splicing and absence of NDUFS4 protein in all tissues tested of homozygous mice. Physical and behavioral symptoms displayed by Ndufs4(fky/fky) mice include temporary fur loss, growth retardation, unsteady gait, and abnormal body posture when suspended by the tail. Analysis of CI in Ndufs4(fky/fky) mice using blue native PAGE revealed the presence of a faster migrating crippled complex. This crippled CI was shown to lack subunits of the "N assembly module", which contains the NADH binding site, but contained two assembly factors not present in intact CI. Metabolomic analysis of the blood by tandem mass spectrometry showed increased hydroxyacylcarnitine species, implying that the CI defect leads to an imbalanced NADH/NAD(+) ratio that inhibits mitochondrial fatty acid β-oxidation.
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Affiliation(s)
| | - Jasper C. Komen
- the Murdoch Childrens Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Parkville, Victoria 3052, Australia
| | | | - Estelle Arnaud
- the Département de Génétique Médicale, Université de Lausanne, 1005 Lausanne, Switzerland
| | - Matthew McKenzie
- the Centre for Reproduction and Development, Monash Institute of Medical Research, Clayton, Victoria 3168, Australia
| | - Belinda Phipson
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia
| | - Melanie Bahlo
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia
- Department of Mathematics and Statistics, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Adrienne Laskowski
- the Murdoch Childrens Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Sarah A. Kinkel
- From the Molecular Medicine Division
- Immunology Division, and
- the Department of Medical Biology and
| | | | | | - Anne K. Voss
- From the Molecular Medicine Division
- the Department of Medical Biology and
| | - René P. Zahedi
- the Leibniz-Institut für Analytische Wissenschaften e.V., 44227 Dortmund, Germany
| | - James J. Pitt
- VCGS Pathology, Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville, Victoria 3052, Australia
| | - Roman Chrast
- the Département de Génétique Médicale, Université de Lausanne, 1005 Lausanne, Switzerland
| | - Albert Sickmann
- the Leibniz-Institut für Analytische Wissenschaften e.V., 44227 Dortmund, Germany
- the Medizinisches Proteom Center, Ruhr-Universität-Bochum, 44780 Bochum, Germany
| | - Michael T. Ryan
- the Department of Biochemistry, La Trobe University, Bundoora, Victoria 3086, Australia, and
| | - Gordon K. Smyth
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia
- the Department of Medical Biology and
- Department of Mathematics and Statistics, University of Melbourne, Parkville, Victoria 3052, Australia
| | - David R. Thorburn
- the Murdoch Childrens Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Hamish S. Scott
- From the Molecular Medicine Division
- the Department of Medical Biology and
- the Department of Molecular Pathology, Centre for Cancer Biology, SA Pathology, Box 14 Rundle Mall Post Office, Adelaide, South Australia 5000, Australia, and
- the Schools of Medicine and Molecular and Biomedical Science, University of Adelaide, South Australia 5005, Australia
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20
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Coughlan MT, Thorburn DR, Penfold SA, Laskowski A, Harcourt BE, Sourris KC, Tan ALY, Fukami K, Thallas-Bonke V, Nawroth PP, Brownlee M, Bierhaus A, Cooper ME, Forbes JM. RAGE-induced cytosolic ROS promote mitochondrial superoxide generation in diabetes. J Am Soc Nephrol 2009; 20:742-52. [PMID: 19158353 DOI: 10.1681/asn.2008050514] [Citation(s) in RCA: 340] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Damaged mitochondria generate an excess of superoxide, which may mediate tissue injury in diabetes. We hypothesized that in diabetic nephropathy, advanced glycation end-products (AGEs) lead to increases in cytosolic reactive oxygen species (ROS), which facilitate the production of mitochondrial superoxide. In normoglycemic conditions, exposure of primary renal cells to AGEs, transient overexpression of the receptor for AGEs (RAGE) with an adenoviral vector, and infusion of AGEs to healthy rodents each induced renal cytosolic oxidative stress, which led to mitochondrial permeability transition and deficiency of mitochondrial complex I. Because of a lack of glucose-derived NADH, which is the substrate for complex I, these changes did not lead to excess production of mitochondrial superoxide; however, when we performed these experiments in hyperglycemic conditions in vitro or in diabetic rats, we observed significant generation of mitochondrial superoxide at the level of complex I, fueled by a sustained supply of NADH. Pharmacologic inhibition of AGE-RAGE-induced mitochondrial permeability transition in vitro abrogated production of mitochondrial superoxide; we observed a similar effect in vivo after inhibiting cytosolic ROS production with apocynin or lowering AGEs with alagebrium. Furthermore, RAGE deficiency prevented diabetes-induced increases in renal mitochondrial superoxide and renal cortical apoptosis in mice. Taken together, these studies suggest that AGE-RAGE-induced cytosolic ROS production facilitates mitochondrial superoxide production in hyperglycemic environments, providing further evidence of a role for the advanced glycation pathway in the development and progression of diabetic nephropathy.
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Affiliation(s)
- Melinda T Coughlan
- Juvenile Diabetes Research Foundation Einstein Centre for Diabetes Complications, Division of Diabetes Complications, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia.
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21
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Drenckhahn JD, Schwarz QP, Gray S, Laskowski A, Kiriazis H, Ming Z, Harvey RP, Du XJ, Thorburn DR, Cox TC. Compensatory growth of healthy cardiac cells in the presence of diseased cells restores tissue homeostasis during heart development. Dev Cell 2008; 15:521-33. [PMID: 18854137 DOI: 10.1016/j.devcel.2008.09.005] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.1] [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: 12/24/2007] [Revised: 08/18/2008] [Accepted: 09/17/2008] [Indexed: 11/18/2022]
Abstract
Energy generation by mitochondrial respiration is an absolute requirement for cardiac function. Here, we used a heart-specific conditional knockout approach to inactivate the X-linked gene encoding Holocytochrome c synthase (Hccs), an enzyme responsible for activation of respiratory cytochromes c and c1. Heterozygous knockout female mice were thus mosaic for Hccs function due to random X chromosome inactivation. In contrast to midgestational lethality of Hccs knockout males, heterozygous females appeared normal after birth. Analyses of heterozygous embryos revealed the expected 50:50 ratio of Hccs deficient to normal cardiac cells at midgestation; however, diseased tissue contributed progressively less over time and by birth represented only 10% of cardiac tissue volume. This change is accounted for by increased proliferation of remaining healthy cardiac cells resulting in a fully functional heart. These data reveal an impressive regenerative capacity of the fetal heart that can compensate for an effective loss of 50% of cardiac tissue.
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Affiliation(s)
- Jörg-Detlef Drenckhahn
- Department of Anatomy & Developmental Biology, Monash University, Wellington Road, Clayton VIC 3800, Melbourne, Australia
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22
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Laskowski A, Woodman OL, Cao AH, Drummond GR, Marshall T, Kaye DM, Ritchie RH. Antioxidant actions contribute to the antihypertrophic effects of atrial natriuretic peptide in neonatal rat cardiomyocytes. Cardiovasc Res 2006; 72:112-23. [PMID: 16890211 DOI: 10.1016/j.cardiores.2006.07.006] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [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] [Received: 12/20/2005] [Revised: 06/30/2006] [Accepted: 07/03/2006] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Reactive oxygen species (ROS) such as superoxide have been linked to the hypertrophic response of the heart to stimuli including angiotensin II (AngII), mechanical stretch, and pressure overload. We have previously demonstrated that cGMP and protein kinase G mediate the antihypertrophic actions of the natriuretic peptides in rat cardiomyocytes and isolated whole hearts. The impact of natriuretic peptides on cardiac ROS generation, however, has not been investigated. We tested the hypothesis that reduced superoxide accumulation contributes to the antihypertrophic action of atrial natriuretic peptide (ANP). METHODS Neonatal rat cardiomyocytes were cultured in serum-free medium with and without AngII (1 micromol/L) or endothelin-1 (ET(1), 60 nmol/L) in the presence and absence of ANP (1 micromol/L) or tempol (100 micromol/L). Hypertrophic responses, cardiomyocyte superoxide generation, and cardiomyocyte expression of NADPH oxidase were determined. RESULTS AngII induced increases in cardiomyocyte size (to 176 +/- 9% n = 8 p < 0.001, at 48 h), beta-myosin heavy chain expression (to 4.0 +/- 1.6-fold n = 6 p < 0.05, at 48 h), c-fos expression (to 1.9 +/- 0.5-fold n = 7 p < 0.01, at 6 h), superoxide generation (to 181+/-21% n = 8 p < 0.005, at 24 h), and expression of the gp91phox subunit of NADPH oxidase (to 2.4 +/- 0.5-fold n = 7 p < 0.05, at 48 h). These effects were all significantly inhibited by ANP: cardiomyocyte size, beta-myosin heavy chain expression, c-fos expression, superoxide generation and gp91phox expression were reduced to 107 +/- 5% (n = 5 p < 0.05), 1.2 +/- 0.2-fold (n = 6 p < 0.05), 0.9 +/- 0.2-fold (n = 7 p < 0.05), 141 +/- 21% (n = 8 p < 0.05), and to 1.0 +/- 0.5-fold (n = 7 p < 0.05), respectively. These effects were mimicked by tempol. ANP and tempol also significantly inhibited ET1-induced increases in cardiomyocyte size and superoxide generation, but had no effect on markers of hypertrophy when studied alone. CONCLUSION This data indicates that the antihypertrophic actions of ANP are accompanied by reduced levels of superoxide, suggesting an antioxidant action contributes to the antihypertrophic actions of ANP.
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Affiliation(s)
- Adrienne Laskowski
- Wynn Department of Metabolic Cardiology, Baker Heart Research Institute, Melbourne 8008, Australia
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23
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Pagnamenta AT, Taanman JW, Wilson CJ, Anderson NE, Marotta R, Duncan AJ, Bitner-Glindzicz M, Taylor RW, Laskowski A, Thorburn DR, Rahman S. Dominant inheritance of premature ovarian failure associated with mutant mitochondrial DNA polymerase gamma. Hum Reprod 2006; 21:2467-73. [PMID: 16595552 DOI: 10.1093/humrep/del076] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Premature ovarian failure (POF) results in menopause before the age of 40. Recently, mutations in the catalytic subunit of mitochondrial DNA polymerase gamma (POLG) were shown to segregate with POF in families with progressive external ophthalmoplegia (PEO) and multiple large-scale rearrangements of mitochondrial DNA (mtDNA). METHODS AND RESULTS A patient, mother and maternal grandmother are described, all presenting with POF and PEO. The mother developed parkinsonism in her sixth decade. Normal mtDNA sequence excluded mitochondrial inheritance. Sequence analysis of polymerase gamma revealed a dominant Y955C mutation that segregated with disease. Southern blot analysis demonstrated mtDNA depletion in fibroblasts (43% of controls). In contrast, multiple rearrangements of mtDNA were seen in skeletal muscle, consistent with the relative sparing of nuclear-encoded complex II activity compared with other respiratory chain enzymes. Immunoblotting of native gels showed that DNA polymerase gamma stability was not affected, whereas a reverse-transcriptase primer-extension assay suggested a trend towards reduced polymerase activity in fibroblasts. CONCLUSIONS This study confirms that POLG mutations can segregate with POF and parkinsonism and demonstrates for the first time that the Y955C mutation can lead to mtDNA depletion. Future screening projects will determine the frequency with which POLG is involved in the aetiology of POF and its impact on reproductive counselling.
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Affiliation(s)
- Alistair T Pagnamenta
- Biochemistry, Endocrinology and Metabolism Unit, Institute of Child Health, London, WC1N 1EH, UK
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Baran J, Fałek A, Laskowski A, Sxeniuta A. [Malignant schwannoma of the orbit in a 91-year old woman]. Otolaryngol Pol 1998; 49 Suppl 20:494-7. [PMID: 9454219] [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: 02/06/2023]
Abstract
A case of 91 year-old woman with Schwannoma malignum of the orbit was described. Main symptoms communicated by the patient were increasing exophthalmos of a bulbus oculi and amblyopia. The surgical approach was lateral orbitotomy m. Kronlein and radical excision of the retrobulbar tumor.
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Affiliation(s)
- J Baran
- Oddziału Otolaryngologicznego, Szpitala Specjalistycznego im. S. Zeromskiego, Krakowie
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25
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Seniuta A, Fałek A, Laskowski A, Baran J. [Neurofibroma of the larynx]. Otolaryngol Pol 1998; 49 Suppl 20:428-31. [PMID: 9454200] [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: 02/06/2023]
Abstract
Thus article has presented a late case of neurofibroma of the larynx. The attention has been directed towards diagnosis difficulties which were recognized before the histopathologic diagnosis has been established.
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Affiliation(s)
- A Seniuta
- Oddziału Otolaryngologicznego, Szpitala Specjalistycznego im. S. Zeromskiego, Krakowie
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Fałek A, Laskowski A, Konieczna A, Orszańska A. [The primary tuberculosis of the nasopharynx]. Otolaryngol Pol 1996; 50:194-9. [PMID: 9045154] [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: 02/03/2023]
Abstract
Authors reports a rare case of the 41 years old woman with the primary tuberculosis of the nasopharynx with submandibular lymphonodulitis. The first suggestion in this case was neoplasma malignum. Antituberculosis treatment was satisfactory.
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Affiliation(s)
- A Fałek
- Z Oddziału Otolaryngologii Szpitala im. Zeromskiego w Krakowie
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27
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Ziaber J, Chmielewski H, Laskowski A, Radek A. [Profiles of daily secretion of ACTH, beta-endorphins and cortisol in patients after minor craniocerebral trauma]. Wiad Lek 1995; 48:36-39. [PMID: 9638202] [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: 05/22/2023]
Abstract
In 12 men aged 20-25 men who had minor craniocerebral trauma the profiles of daily secretion of ACTH, beta-endorphin and cortisol were studied. The studies were carried out on the second day after the trauma. Plasma concentrations of the hormones were determined on 8.00, 12.00, 17.00 and 22.00 hours. Statistically significantly increased, in relation to healthy persons, (p < 0.01) values of plasma hormone concentration were found at all time points. In 50% of the patients (six cases) a disturbance was found of the profile of daily secretion of ACTH and beta-endorphin. The disturbance of the profile of cortisol secretion was found only in one patient.
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Affiliation(s)
- J Ziaber
- Kliniki Neurologicznej Szpitala Klinicznego WAM, Lodzi
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28
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Radek A, Maciejczak A, Laskowski A. [An internal fixator for posterior application to short segments of thoracic, lumbar and lumbosacral spine. Design and testing]. Neurol Neurochir Pol 1994; 28:567-75. [PMID: 7991058] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The authors present preliminary experiences in spinal instrumentation with internal fixator Socon (Aesculap). The device was introduced into the routine clinical practice in the Department in 1992. Basing on personal experience they confirm the advantages of usage of internal fixators in spinal surgery especially good stabilisation of the spine and possibility of early mobilisation of patients. Analysis of the series of 6 cases operated on in the Department with the longest follow-up of 10 months revealed no neurological or vascular complication related to pedicle screw insertion, no wound infection and no instability of instrumented segment of the spine. The report includes 3 illustrative cases operated on in the Department.
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Affiliation(s)
- A Radek
- Kliniki Neurochirurgii WAM, Lodzi
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29
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Szmigiel C, Stelmachowska M, Laskowski A. [Clinical picture of tuberculous peritonitis]. Wiad Lek 1992; 45:303-6. [PMID: 1462594] [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: 12/27/2022]
Abstract
The clinical picture of tuberculous peritonitis in productive form with formation of an abdominal tumour 18 x 20 cm in dimensions is described. The patient was a boy aged 19 years from rural environment. The diagnosis was based on bacteriological investigations, histological examination and clinical manifestations. Attention is called to diagnostic difficulties in cases of tuberculous peritonitis without positive tuberculin tests and with pulmonary fibronodular tuberculosis.
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Affiliation(s)
- C Szmigiel
- I Oddziału Dzieciecego Miejskiego Szpitala im. St. Zeromskiego, Krakowie
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30
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Janotka H, Laskowski A. [Secondary glaucoma in retinal angiomatosis (Hippel-Lindau disease) (author's transl)]. Klin Oczna 1980; 82:165-6. [PMID: 7392520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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31
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Kurzbauer R, Kurzbauer E, Kloza A, Laskowski A. [Perforation of Meckel's diverticulum by a foreign body]. Pol Przegl Chir 1979; 51:683-4. [PMID: 514911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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32
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Laskowski A, Kurzbauer R. [Remote results of treatment of precancerous conditions of the cervix by means of electroconisation]. Ginekol Pol 1978; 49:609-12. [PMID: 710952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Laskowski A. [Follow-up results of the treatment of uterine cervix erosions with Vagothyl, Polfa]. Ginekol Pol 1978; 49:51-3. [PMID: 640483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Laskowski A. [Active therapy in cases of cervix erosion following electrosurgery]. Ginekol Pol 1977; 48:875-9. [PMID: 924214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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35
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Laskowski A. [Implant endometriosis following electrosurgery of uterine cervix]. Wiad Lek 1977; 30:849-52. [PMID: 883297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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36
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Laskowski A. [Effect of labor on the condition of the uterine cervix following electrosurgical procedure]. Pol Tyg Lek 1976; 31:2137-8. [PMID: 1005197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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37
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Bobowicz Z, Gostyński M, Laskowski A. [Studies on the degree of exposure to mercurial vapours in workers of dental clinics]. Czas Stomatol 1976; 29:1087-92. [PMID: 1069621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Kamieński R, Wrzosek-Szydek E, Laskowski A. [Mesenteric lymphangiomas in children]. Wiad Lek 1976; 29:1207-10. [PMID: 952009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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39
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Laskowski A. [Complications following electrosurgical procedures on the cervix uteri]. Pol Tyg Lek 1976; 31:667-9. [PMID: 1272963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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40
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Babecka E, Bieleń E, Laskowski A. [Septic form of congenital toxoplasmosis in a newborn infant]. Pediatr Pol 1975; 50:491-4. [PMID: 1124239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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41
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Barbacki M, Laskowski A, Orlowska E. [Cerebellar sarcoma in an infant with atypical course]. Wiad Lek 1971; 24:1679-82. [PMID: 5116444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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42
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Laskowski A, Maj T, Koziol-Honoryński E. [Non-malignant embryonic osteoma of the maxilla]. Patol Pol 1971; 22:391-5. [PMID: 5570187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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43
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Laskowski A, Barbacki M, Orlowska E. [Cerebellar tumor having the histologic pattern of hemangiopericytoma in an infant]. Patol Pol 1971; 22:413-8. [PMID: 5570190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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44
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45
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Durek K, Laskowski A. [Leiofibromyoma of the middle part of the esophagus]. Pol Przegl Chir 1966; 38:63-5. [PMID: 5942857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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