1
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Williams J, Hurling C, Munir S, Harley P, Machado CB, Cujba AM, Alvarez-Fallas M, Danovi D, Lieberam I, Sancho R, Beales P, Watt FM. Modelling renal defects in Bardet-Biedl syndrome patients using human iPS cells. Front Cell Dev Biol 2023; 11:1163825. [PMID: 37333983 PMCID: PMC10272764 DOI: 10.3389/fcell.2023.1163825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/19/2023] [Indexed: 06/20/2023] Open
Abstract
Bardet-Biedl syndrome (BBS) is a ciliopathy with pleiotropic effects on multiple tissues, including the kidney. Here we have compared renal differentiation of iPS cells from healthy and BBS donors. High content image analysis of WT1-expressing kidney progenitors showed that cell proliferation, differentiation and cell shape were similar in healthy, BBS1, BBS2, and BBS10 mutant lines. We then examined three patient lines with BBS10 mutations in a 3D kidney organoid system. The line with the most deleterious mutation, with low BBS10 expression, expressed kidney marker genes but failed to generate 3D organoids. The other two patient lines expressed near normal levels of BBS10 mRNA and generated multiple kidney lineages within organoids when examined at day 20 of organoid differentiation. However, on prolonged culture (day 27) the proximal tubule compartment degenerated. Introducing wild type BBS10 into the most severely affected patient line restored organoid formation, whereas CRISPR-mediated generation of a truncating BBS10 mutation in a healthy line resulted in failure to generate organoids. Our findings provide a basis for further mechanistic studies of the role of BBS10 in the kidney.
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Affiliation(s)
- James Williams
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Chloe Hurling
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Sabrina Munir
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Peter Harley
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Carolina Barcellos Machado
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Ana-Maria Cujba
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Mario Alvarez-Fallas
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Davide Danovi
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
- Bit.bio, Babraham Research Campus, Cambridge, United Kingdom
| | - Ivo Lieberam
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
- Centre for Developmental Neurobiology and MRC Centre for Neurodevelopmental Disorders, King’s College London, London, United Kingdom
| | - Rocio Sancho
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
| | - Philip Beales
- Institute of Child Health, Genetic and Genomic Medicine, University College London, London, United Kingdom
| | - Fiona M. Watt
- Centre for Gene Therapy and Regenerative Medicine, King’s College London, Guy’s Hospital, London, United Kingdom
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2
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Manea T, Nelson JK, Garrone CM, Hansson K, Evans I, Behrens A, Sancho R. USP7 controls NGN3 stability and pancreatic endocrine lineage development. Nat Commun 2023; 14:2457. [PMID: 37117185 PMCID: PMC10147604 DOI: 10.1038/s41467-023-38146-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 04/18/2023] [Indexed: 04/30/2023] Open
Abstract
Understanding the factors and mechanisms involved in beta-cell development will guide therapeutic efforts to generate fully functional beta cells for diabetes. Neurogenin 3 (NGN3) is the key transcription factor that marks endocrine progenitors and drives beta-cell differentiation. Here we screen for binding partners of NGN3 and identify the deubiquitylating enzyme USP7 as a key regulator of NGN3 stability. Mechanistically, USP7 interacts with, deubiquitinates and stabilizes NGN3. In vivo, conditional knockout of Usp7 in the mouse embryonic pancreas causes a dramatic reduction in islet formation and hyperglycemia in adult mice, due to impaired NGN3-mediated endocrine specification during pancreatic development. Furthermore, pharmacological inhibition of USP7 during endocrine specification in human iPSC models of beta-cell differentiation decreases NGN3 expressing progenitor cell numbers and impairs beta cell differentiation. Thus, the USP7-NGN3 axis is an essential mechanism for driving endocrine development and beta-cell differentiation, which can be therapeutically exploited.
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Affiliation(s)
- Teodora Manea
- Centre for Gene Therapy and Regenerative Medicine, King's College London, London, UK
| | - Jessica Kristine Nelson
- Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- Cancer Stem Cell Laboratory, The Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB, UK
| | | | - Karin Hansson
- Cancer Stem Cell Laboratory, The Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB, UK
| | - Ian Evans
- Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- Cancer Stem Cell Laboratory, The Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB, UK
| | - Axel Behrens
- Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- Cancer Stem Cell Laboratory, The Breast Cancer Now Toby Robins Research Centre, Institute of Cancer Research, 237 Fulham Road, London, SW3 6JB, UK
- Imperial College, Division of Cancer, Department of Surgery and Cancer, Imperial College, Exhibition Road, London, SW7 2AZ, UK
- Convergence Science Centre, Imperial College, Exhibition Road, London, SW7 2BU, UK
| | - Rocio Sancho
- Centre for Gene Therapy and Regenerative Medicine, King's College London, London, UK.
- Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany.
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3
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Gribben C, Sancho R, Behrens A. Response to Magenheim et al.: Ductal Ngn3-expressing progenitors contribute to adult beta cell neogenesis in the pancreas. Cell Stem Cell 2023; 30:345-347. [PMID: 37028401 DOI: 10.1016/j.stem.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 12/01/2022] [Accepted: 03/01/2023] [Indexed: 04/09/2023]
Affiliation(s)
- Christopher Gribben
- Wellcome Trust-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Rocio Sancho
- Centre for Stem Cells and Regenerative Medicine, King's College, London, UK
| | - Axel Behrens
- Cancer Stem Cell Laboratory, Institute of Cancer Research, London, UK; Imperial College, Division of Cancer, Department of Surgery and Cancer, London, SW7 2BU, UK; Convergence Science Centre, Imperial College, London, SW7 2BU, UK.
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4
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Gribben C, Lambert C, Messal HA, Hubber EL, Rackham C, Evans I, Heimberg H, Jones P, Sancho R, Behrens A. Ductal Ngn3-expressing progenitors contribute to adult β cell neogenesis in the pancreas. Cell Stem Cell 2023; 30:498-499. [PMID: 37028409 PMCID: PMC10109084 DOI: 10.1016/j.stem.2023.02.005] [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: 04/09/2023]
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5
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Pedraza-Arevalo S, Cujba AM, Alvarez-Fallas ME, Sancho R. Differentiation of beta-like cells from human induced pluripotent stem cell-derived pancreatic progenitor organoids. STAR Protoc 2022; 3:101656. [PMID: 36092820 PMCID: PMC9449863 DOI: 10.1016/j.xpro.2022.101656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Human induced pluripotent stem cells (hiPSCs) and organoids are important for modeling human development and disease in vitro. In this study, we describe a protocol to differentiate hiPSC toward pancreatic progenitor (PP) organoids and beta-like cells. We detail the expansion and seeding of hiPSC, PP differentiation, organoid expansion, and the differentiation of PP into beta cells. Upon differentiation, organoids contained beta, delta, and alpha cells. For complete details on the use and execution of this protocol, please refer to Cujba et al. (2022).
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Affiliation(s)
- Sergio Pedraza-Arevalo
- Center for Gene Therapy and Regenerative Medicine, Kings College London, London, SE1 9RT, UK
| | - Ana-Maria Cujba
- Center for Gene Therapy and Regenerative Medicine, Kings College London, London, SE1 9RT, UK
| | | | - Rocio Sancho
- Center for Gene Therapy and Regenerative Medicine, Kings College London, London, SE1 9RT, UK,Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany,Corresponding author
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6
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Cujba AM, Alvarez-Fallas ME, Pedraza-Arevalo S, Laddach A, Shepherd MH, Hattersley AT, Watt FM, Sancho R. An HNF1α truncation associated with maturity-onset diabetes of the young impairs pancreatic progenitor differentiation by antagonizing HNF1β function. Cell Rep 2022; 38:110425. [PMID: 35235779 PMCID: PMC8905088 DOI: 10.1016/j.celrep.2022.110425] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/23/2021] [Accepted: 02/02/2022] [Indexed: 01/16/2023] Open
Abstract
The HNF1αp291fsinsC truncation is the most common mutation associated with maturity-onset diabetes of the young 3 (MODY3). Although shown to impair HNF1α signaling, the mechanism by which HNF1αp291fsinsC causes MODY3 is not fully understood. Here we use MODY3 patient and CRISPR/Cas9-engineered human induced pluripotent stem cells (hiPSCs) grown as 3D organoids to investigate how HNF1αp291fsinsC affects hiPSC differentiation during pancreatic development. HNF1αp291fsinsC hiPSCs shows reduced pancreatic progenitor and β cell differentiation. Mechanistically, HNF1αp291fsinsC interacts with HNF1β and inhibits its function, and disrupting this interaction partially rescues HNF1β-dependent transcription. HNF1β overexpression in the HNF1αp291fsinsC patient organoid line increases PDX1+ progenitors, while HNF1β overexpression in the HNF1αp291fsinsC patient iPSC line partially rescues β cell differentiation. Our study highlights the capability of pancreas progenitor-derived organoids to model disease in vitro. Additionally, it uncovers an HNF1β-mediated mechanism linked to HNF1α truncation that affects progenitor differentiation and could explain the clinical heterogeneity observed in MODY3 patients. MODY3 patient and CRISPR/Cas9 HNF1αp291fsinsC mutated iPSC lines are generated Mutant iPSCs show deficient pancreatic progenitor and β cell differentiation Mutant truncated HNF1α protein binds wild-type HNF1β protein to hinder its function HNF1β overexpression in MODY3 iPSC line partially rescues β cell differentiation
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Affiliation(s)
- Ana-Maria Cujba
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | | | | | | | | | | | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - Rocio Sancho
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK; Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany.
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7
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Alvarez Fallas ME, Pedraza-Arevalo S, Cujba AM, Manea T, Lambert C, Morrugares R, Sancho R. Stem/progenitor cells in normal physiology and disease of the pancreas. Mol Cell Endocrinol 2021; 538:111459. [PMID: 34543699 PMCID: PMC8573583 DOI: 10.1016/j.mce.2021.111459] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 03/19/2021] [Accepted: 09/13/2021] [Indexed: 02/08/2023]
Abstract
Though embryonic pancreas progenitors are well characterised, the existence of stem/progenitor cells in the postnatal mammalian pancreas has been long debated, mainly due to contradicting results on regeneration after injury or disease in mice. Despite these controversies, sequencing advancements combined with lineage tracing and organoid technologies indicate that homeostatic and trigger-induced regenerative responses in mice could occur. The presence of putative progenitor cells in the adult pancreas has been proposed during homeostasis and upon different stress challenges such as inflammation, tissue damage and oncogenic stress. More recently, single cell transcriptomics has revealed a remarkable heterogeneity in all pancreas cell types, with some cells showing the signature of potential progenitors. In this review we provide an overview on embryonic and putative adult pancreas progenitors in homeostasis and disease, with special emphasis on in vitro culture systems and scRNA-seq technology as tools to address the progenitor nature of different pancreatic cells.
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Affiliation(s)
- Mario Enrique Alvarez Fallas
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Sergio Pedraza-Arevalo
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Ana-Maria Cujba
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Teodora Manea
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Christopher Lambert
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Rosario Morrugares
- Instituto Maimonides de Investigacion Biomedica de Cordoba (IMIBIC), Cordoba, Spain; Departamento de Biologia Celular, Fisiologia e Inmunologia, Universidad de Cordoba, Cordoba, Spain; Hospital Universitario Reina Sofia, Cordoba, Spain
| | - Rocio Sancho
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, London, UK; Department of Medicine III, University Hospital Carl Gustav Carus, Dresden, Germany.
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8
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Gribben C, Lambert C, Messal HA, Hubber EL, Rackham C, Evans I, Heimberg H, Jones P, Sancho R, Behrens A. Ductal Ngn3-expressing progenitors contribute to adult β cell neogenesis in the pancreas. Cell Stem Cell 2021; 28:2000-2008.e4. [PMID: 34478642 PMCID: PMC8577827 DOI: 10.1016/j.stem.2021.08.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/12/2021] [Accepted: 08/05/2021] [Indexed: 12/25/2022]
Abstract
Ductal cells have been proposed as a source of adult β cell neogenesis, but this has remained controversial. By combining lineage tracing, 3D imaging, and single-cell RNA sequencing (scRNA-seq) approaches, we show that ductal cells contribute to the β cell population over time. Lineage tracing using the Neurogenin3 (Ngn3)-CreERT line identified ductal cells expressing the endocrine master transcription factor Ngn3 that were positive for the δ cell marker somatostatin and occasionally co-expressed insulin. The number of hormone-expressing ductal cells was increased in Akita+/- diabetic mice, and ngn3 heterozygosity accelerated diabetes onset. scRNA-seq of Ngn3 lineage-traced islet cells indicated that duct-derived somatostatin-expressing cells, some of which retained expression of ductal markers, gave rise to β cells. This study identified Ngn3-expressing ductal cells as a source of adult β cell neogenesis in homeostasis and diabetes, suggesting that this mechanism, in addition to β cell proliferation, maintains the adult islet β cell population.
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Affiliation(s)
| | - Christopher Lambert
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | | | | | - Chloe Rackham
- Department of Diabetes, King's College London, London, UK
| | - Ian Evans
- The Francis Crick Institute, 1 Midland Road, London, UK
| | - Harry Heimberg
- Beta Cell Neogenesis, Vrije Universiteit Brussel, Brussels, Belgium
| | - Peter Jones
- Department of Diabetes, King's College London, London, UK
| | - Rocio Sancho
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK; Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany.
| | - Axel Behrens
- The Francis Crick Institute, 1 Midland Road, London, UK; Cancer Stem Cell Laboratory, Institute of Cancer Research, London, UK; Division of Cancer, Department of Surgery and Cancer, Imperial College, London, UK; Convergence Science Centre, Imperial College, London SW7 2BU, UK.
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9
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Bornstein SR, Guan K, Brunßen C, Mueller G, Kamvissi-Lorenz V, Lechler R, Trembath R, Mayr M, Poston L, Sancho R, Ahmed S, Alfar E, Aljani B, Alves TC, Amiel S, Andoniadou CL, Bandral M, Belavgeni A, Berger I, Birkenfeld A, Bonifacio E, Chavakis T, Chawla P, Choudhary P, Cujba AM, Delgadillo Silva LF, Demcollari T, Drotar DM, Duin S, El-Agroudy NN, El-Armouche A, Eugster A, Gado M, Gavalas A, Gelinsky M, Guirgus M, Hansen S, Hanton E, Hasse M, Henneicke H, Heller C, Hempel H, Hogstrand C, Hopkins D, Jarc L, Jones PM, Kamel M, Kämmerer S, King AJF, Kurzbach A, Lambert C, Latunde-Dada Y, Lieberam I, Liers J, Li JW, Linkermann A, Locke S, Ludwig B, Manea T, Maremonti F, Marinicova Z, McGowan BM, Mickunas M, Mingrone G, Mohanraj K, Morawietz H, Ninov N, Peakman M, Persaud SJ, Pietzsch J, Cachorro E, Pullen TJ, Pyrina I, Rubino F, Santambrogio A, Schepp F, Schlinkert P, Scriba LD, Siow R, Solimena M, Spagnoli FM, Speier S, Stavridou A, Steenblock C, Strano A, Taylor P, Tiepner A, Tonnus W, Tree T, Watt F, Werdermann M, Wilson M, Yusuf N, Ziegler CG. The transCampus Metabolic Training Programme Explores the Link of SARS-CoV-2 Virus to Metabolic Disease. Horm Metab Res 2021; 53:204-206. [PMID: 33652492 DOI: 10.1055/a-1377-6583] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Currently, we are experiencing a true pandemic of a communicable disease by the virus SARS-CoV-2 holding the whole world firmly in its grasp. Amazingly and unfortunately, this virus uses a metabolic and endocrine pathway via ACE2 to enter our cells causing damage and disease. Our international research training programme funded by the German Research Foundation has a clear mission to train the best students wherever they may come from to learn to tackle the enormous challenges of diabetes and its complications for our society. A modern training programme in diabetes and metabolism does not only involve a thorough understanding of classical physiology, biology and clinical diabetology but has to bring together an interdisciplinary team. With the arrival of the coronavirus pandemic, this prestigious and unique metabolic training programme is facing new challenges but also new opportunities. The consortium of the training programme has recognized early on the need for a guidance and for practical recommendations to cope with the COVID-19 pandemic for the community of patients with metabolic disease, obesity and diabetes. This involves the optimal management from surgical obesity programmes to medications and insulin replacement. We also established a global registry analyzing the dimension and role of metabolic disease including new onset diabetes potentially triggered by the virus. We have involved experts of infectious disease and virology to our faculty with this metabolic training programme to offer the full breadth and scope of expertise needed to meet these scientific challenges. We have all learned that this pandemic does not respect or heed any national borders and that we have to work together as a global community. We believe that this transCampus metabolic training programme provides a prime example how an international team of established experts in the field of metabolism can work together with students from all over the world to address a new pandemic.
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Affiliation(s)
- S R Bornstein
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
- Division of Diabetes & Nutritional Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
- University Hospital Zurich, Department of Endocrinology and Diabetology, Zurich, Switzerland
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - K Guan
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - C Brunßen
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - G Mueller
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - V Kamvissi-Lorenz
- Division of Diabetes & Nutritional Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | | | - R Trembath
- Department of Medical & Molecular Genetics, King's College London, London, UK
| | - M Mayr
- School of Cardiovascular Medicine and Science, Faculty of Life Science & Medicine, KCL, London, UK
| | - L Poston
- Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, UK
| | - R Sancho
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - S Ahmed
- Center for Regenerative Therapies Dresden, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - E Alfar
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - B Aljani
- Center for Regenerative Therapies Dresden, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - T C Alves
- Institute for Clinical Chemistry and Laboratory Medicine, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - S Amiel
- Department of Diabetes Research, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - C L Andoniadou
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
- Craniofacial Development and Stem Cell Biology, KCL, London, UK
| | - M Bandral
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - A Belavgeni
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - I Berger
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - A Birkenfeld
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
- Division of Diabetes & Nutritional Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany
| | - E Bonifacio
- Center for Regenerative Therapies Dresden, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - T Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - P Chawla
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - P Choudhary
- Division of Diabetes & Nutritional Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - A M Cujba
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - L F Delgadillo Silva
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - T Demcollari
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - D M Drotar
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - S Duin
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
- Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität Dresden, Dresden, Germany
| | - N N El-Agroudy
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - A El-Armouche
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - A Eugster
- Center for Regenerative Therapies Dresden, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - M Gado
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - A Gavalas
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - M Gelinsky
- Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität Dresden, Dresden, Germany
| | - M Guirgus
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - S Hansen
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - E Hanton
- Peter Gorer Department of Immunobiology, Guy's Hospital, London, UK
| | - M Hasse
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - H Henneicke
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - C Heller
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - H Hempel
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - C Hogstrand
- Department of Nutritional Sciences, Faculty of Life Sciences & Medicine, KCL, London, UK
| | - D Hopkins
- Department of Diabetic Medicine, King's College Hospital NHS Foundation Trust and KCL, London, UK
| | - L Jarc
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - P M Jones
- Department of Diabetes Research, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - M Kamel
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - S Kämmerer
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - A J F King
- Department of Diabetes Research, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - A Kurzbach
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - C Lambert
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | | | - I Lieberam
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - J Liers
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - J W Li
- Center for Regenerative Therapies Dresden, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - A Linkermann
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - S Locke
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - B Ludwig
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
- University Hospital Zurich, Department of Endocrinology and Diabetology, Zurich, Switzerland
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
- Center for Regenerative Therapies Dresden, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - T Manea
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - F Maremonti
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - Z Marinicova
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - B M McGowan
- Department of Diabetes and Endocrinology, London, UK
| | - M Mickunas
- Peter Gorer Department of Immunobiology, Guy's Hospital, London, UK
| | - G Mingrone
- Department of Diabetes Research, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - K Mohanraj
- Institute for Clinical Chemistry and Laboratory Medicine, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - H Morawietz
- Division of Vascular Endothelium and Microcirculation, Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - N Ninov
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - M Peakman
- Peter Gorer Department of Immunobiology, Guy's Hospital, London, UK
| | - S J Persaud
- Department of Diabetes Research, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - J Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - E Cachorro
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - T J Pullen
- School of Life Course Sciences, Faculty of Life Sciences & Medicine, KCL, London, UK
| | - I Pyrina
- Institute for Clinical Chemistry and Laboratory Medicine, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - F Rubino
- Department of Diabetes Research, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - A Santambrogio
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - F Schepp
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - P Schlinkert
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - L D Scriba
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - R Siow
- Vascular Biology & Inflammation Section, School of Cardiovascular Medicine & Sciences, British Heart Foundation of Research Excellence, King's College London, London, UK
| | - M Solimena
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
- Molecular Diabetology, University Hospital and Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - F M Spagnoli
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - S Speier
- Paul Langerhans Institute Dresden (PLID) of the Helmholtz Center Munich at the University Hospital Carl Gustav Carus and Medical Faculty, Dresden, Germany
| | - A Stavridou
- Center for Regenerative Therapies Dresden, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - C Steenblock
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - A Strano
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - P Taylor
- Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, UK
| | - A Tiepner
- Institute of Pharmacology and Toxicology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - W Tonnus
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - T Tree
- Peter Gorer Department of Immunobiology, Guy's Hospital, London, UK
| | - F Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
| | - M Werdermann
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
| | - M Wilson
- School of Life Course Sciences, Faculty of Life Sciences & Medicine, KCL, London, UK
| | - N Yusuf
- Peter Gorer Department of Immunobiology, Guy's Hospital, London, UK
| | - C G Ziegler
- Department of Medicine III, Medical Faculty Carl Gustav Carus, University Hospital Carl Gustav Carus Dresden, Technische Universität Dresden, Germany
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Sancho R, Galvez F, Garrido C, Perosanz-Amarillo S, Barba D. On the mechanical behaviour of additively manufactured metamaterials under dynamic conditions. EPJ Web Conf 2021. [DOI: 10.1051/epjconf/202125005006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
High-energy absorption and light-weightiness are two critical properties for impact protection in the aerospace sector. In the past, the use of periodic honeycomb structures or random porous metallic foams were the preferred route to obtain a good specific-energy absorption performance. In recent years, the use of additive manufacturing has increased the design freedom creating a new generation of reticulated and porous materials: the metamaterials or lattice materials. The internal geometries of these lattice structures can be tuned for superior optimal properties, e.g., energyabsorption and density. However, the mechanics of these materials under impact need to be understood with the purpose of mechanical optimisation, and the computational models validated. In this work, we present the experimental compressive behaviour, at room temperature, of two Ti6Al4V lattice structures under static and dynamic conditions. The quasi-static tests were performed by using a universal testing machine while the dynamic tests were conducted at 480s-1 with a split-Hopkinson bar. In all cases, the deformation process was filmed to analyse the failure. Finally, finiteelement simulations were done, employing the Johnson-Cook model, to describe the response of the alloy. The simulations were able to reflect the failure characteristics of each metamaterial but were not able to describe the macroscopic response due to the differences between the experimental and computational volume fraction.
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11
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Goldman O, Puchinsky D, Durlacher K, Sancho R, Ludwig B, Kugelmeier P, Heller C, Kunicher N, Bornstein SR, Treves AJ. Lung Based Engineered Micro-Pancreas Sustains Human Beta Cell Survival and Functionality. Horm Metab Res 2019; 51:805-811. [PMID: 31826275 DOI: 10.1055/a-1041-3305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The whole world has been affected by a dramatically increasing prevalence of diabetes. Today, the etiology of both type 1 and type 2 diabetes is thought to revolve around the dysfunction of β-cells, the insulin producing cells of the body. Within the pharmaceutical industry, the evaluation of new drugs for diabetes treatment is mostly done using cell lines or rodent islets and depends solely on the assessment of static insulin secretion. However, the use of cell lines or rodent islets is limiting lack of similarity of the human islet cells, leading to a constrain of the predictive value regarding the clinical potential of newly developed drugs. To overcome this issue, we developed an Engineered Micro-Pancreas as a unique platform for drug discovery. The Engineered Micro Pancreas is composed of (i) an organ-derived micro-scaffold, specifically a decellularized porcine lung-derived micro-scaffold and (ii) cadaveric islets seeded thereon. The Engineered Micro Pancreas remained viable and maintained insulin secretion in vitro for up to three months. The quantities of insulin were comparable to those secreted by freshly isolated human islets and therefore hold the potential for real-time and metabolic physiology mimicking drug screening.
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Affiliation(s)
- Orit Goldman
- Betalin Therapeutics LTD, Jerusalem Bio-Park, Jerusalem, Israel
| | | | | | - Rocio Sancho
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, UK
- Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Barbara Ludwig
- Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of Helmholtz Centre Munich at University Hospital Carl Gustav Carus of Technische Universität Dresden and German Centre for Diabetes Research, Dresden, Germany
- Center for Regenerative Therapies, Technische Universität Dresden, Dresden, Germany
| | | | - Carolin Heller
- Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of Helmholtz Centre Munich at University Hospital Carl Gustav Carus of Technische Universität Dresden and German Centre for Diabetes Research, Dresden, Germany
- Center for Regenerative Therapies, Technische Universität Dresden, Dresden, Germany
| | | | - Stefan R Bornstein
- Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden of Helmholtz Centre Munich at University Hospital Carl Gustav Carus of Technische Universität Dresden and German Centre for Diabetes Research, Dresden, Germany
- Center for Regenerative Therapies, Technische Universität Dresden, Dresden, Germany
- Division of Diabetes & Nutritional Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, University Hospital, Zürich, Switzerland
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Ruiz EJ, Diefenbacher ME, Nelson JK, Sancho R, Pucci F, Chakraborty A, Moreno P, Annibaldi A, Liccardi G, Encheva V, Mitter R, Rosenfeldt M, Snijders AP, Meier P, Calzado MA, Behrens A. LUBAC determines chemotherapy resistance in squamous cell lung cancer. J Exp Med 2019; 216:450-465. [PMID: 30642944 PMCID: PMC6363428 DOI: 10.1084/jem.20180742] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 11/20/2018] [Accepted: 12/18/2018] [Indexed: 01/08/2023] Open
Abstract
Lung squamous cell carcinoma (LSCC) and adenocarcinoma (LADC) are the most common lung cancer subtypes. Molecular targeted treatments have improved LADC patient survival but are largely ineffective in LSCC. The tumor suppressor FBW7 is commonly mutated or down-regulated in human LSCC, and oncogenic KRasG12D activation combined with Fbxw7 inactivation in mice (KF model) caused both LSCC and LADC. Lineage-tracing experiments showed that CC10+, but not basal, cells are the cells of origin of LSCC in KF mice. KF LSCC tumors recapitulated human LSCC resistance to cisplatin-based chemotherapy, and we identified LUBAC-mediated NF-κB signaling as a determinant of chemotherapy resistance in human and mouse. Inhibition of NF-κB activation using TAK1 or LUBAC inhibitors resensitized LSCC tumors to cisplatin, suggesting a future avenue for LSCC patient treatment.
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Affiliation(s)
- E Josue Ruiz
- Adult Stem Cell Laboratory, The Francis Crick Institute, London, UK
| | | | - Jessica K Nelson
- Adult Stem Cell Laboratory, The Francis Crick Institute, London, UK
| | - Rocio Sancho
- Adult Stem Cell Laboratory, The Francis Crick Institute, London, UK
| | - Fabio Pucci
- Adult Stem Cell Laboratory, The Francis Crick Institute, London, UK
| | | | - Paula Moreno
- Instituto Maimónides de Investigación Biomédica de Córdoba, Córdoba, Spain
- Unidad de Cirugía Torácica y Trasplante Pulmonar, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Alessandro Annibaldi
- Breast Cancer Now, Toby Robins Research Centre, Institute of Cancer Research, London, UK
| | - Gianmaria Liccardi
- Breast Cancer Now, Toby Robins Research Centre, Institute of Cancer Research, London, UK
| | | | - Richard Mitter
- Bioinformatics and Biostatistics, The Francis Crick Institute, London, UK
| | - Mathias Rosenfeldt
- Comprehensive Cancer Center Mainfranken, University of Würzburg, Würzburg, Germany
| | | | - Pascal Meier
- Breast Cancer Now, Toby Robins Research Centre, Institute of Cancer Research, London, UK
| | - Marco A Calzado
- Instituto Maimónides de Investigación Biomédica de Córdoba, Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
| | - Axel Behrens
- Adult Stem Cell Laboratory, The Francis Crick Institute, London, UK
- Faculty of Life Sciences and Medicine, King's College London, London, UK
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13
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Abstract
The pancreas has a very limited regenerative potential during homeostasis. Despite its quiescent nature, recent in vivo models suggest a certain degree of regeneration and cellular interconversion is possible within the adult pancreas. It has now become evident that cellular plasticity can be observed in essentially all cell types within the pancreas when provided with the right stress stimuli. In this review, we will focus on the latest findings uncovering phenotypic plasticity of different cell types in the pancreas, the molecular mechanisms behind such plasticity and how plasticity associated with pancreatic or non-pancreatic cells could be harnessed in the generation of new insulin-producing beta cells.
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Affiliation(s)
- Theoni Ingrid Demcollari
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, Guy's Hospital, 28th Floor, Tower Wing, London SE1 9RT, UK
| | - Ana-Maria Cujba
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, Guy's Hospital, 28th Floor, Tower Wing, London SE1 9RT, UK
| | - Rocio Sancho
- Centre for Stem Cells and Regenerative Medicine, Faculty of Life Sciences & Medicine, King's College London, Guy's Hospital, 28th Floor, Tower Wing, London SE1 9RT, UK.
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14
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Ferreira RMM, Sancho R, Messal HA, Nye E, Spencer-Dene B, Stone RK, Stamp G, Rosewell I, Quaglia A, Behrens A. Duct- and Acinar-Derived Pancreatic Ductal Adenocarcinomas Show Distinct Tumor Progression and Marker Expression. Cell Rep 2017; 21:966-978. [PMID: 29069604 PMCID: PMC5668631 DOI: 10.1016/j.celrep.2017.09.093] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 08/05/2017] [Accepted: 09/27/2017] [Indexed: 12/24/2022] Open
Abstract
The cell of origin of pancreatic ductal adenocarcinoma (PDAC) has been controversial. Here, we show that identical oncogenic drivers trigger PDAC originating from both ductal and acinar cells with similar histology but with distinct pathophysiology and marker expression dependent on cell of origin. Whereas acinar-derived tumors exhibited low AGR2 expression and were preceded by pancreatic intraepithelial neoplasias (PanINs), duct-derived tumors displayed high AGR2 and developed independently of a PanIN stage via non-mucinous lesions. Using orthotopic transplantation and chimera experiments, we demonstrate that PanIN-like lesions can be induced by PDAC as bystanders in adjacent healthy tissues, explaining the co-existence of mucinous and non-mucinous lesions and highlighting the need to distinguish between true precursor PanINs and PanIN-like bystander lesions. Our results suggest AGR2 as a tool to stratify PDAC according to cell of origin, highlight that not all PanIN-like lesions are precursors of PDAC, and add an alternative progression route to the current model of PDAC development.
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Affiliation(s)
- Rute M M Ferreira
- Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Rocio Sancho
- Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Hendrik A Messal
- Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Emma Nye
- Experimental Histopathology, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Bradley Spencer-Dene
- Experimental Histopathology, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Richard K Stone
- Experimental Histopathology, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Gordon Stamp
- Experimental Histopathology, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Ian Rosewell
- Transgenic Service-Biological Research Facility, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Alberto Quaglia
- King's College Hospital/King's College London, Institute of Liver Studies, Denmark Hill, London SE5 9RS, UK
| | - Axel Behrens
- Adult Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK; King's College London, Faculty of Life Sciences and Medicine, Guy's Campus, London SE1 1UL, UK.
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15
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Rábago JL, López-Doueil M, Sancho R, Hernández-Pinto P, Neira N, Capa E, Larraz E, Redondo-Figuero CG, Maestre JM. Learning outcomes evaluation of a simulation-based introductory course to anaesthesia. Rev Esp Anestesiol Reanim 2017; 64:431-440. [PMID: 28347552 DOI: 10.1016/j.redar.2016.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 09/07/2016] [Revised: 12/21/2016] [Accepted: 12/31/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE An increased number of errors and reduced patient safety have been reported during the incorporation of residents, as this period involves learning new skills. The objectives were to evaluate the learning outcomes of an immersive simulation boot-camp for incoming residents before starting the clinical rotations. Airway assessment, airway control with direct laryngoscopy, and epidural catheterization competencies were evaluated. MATERIAL AND METHOD Twelve first-year anaesthesiology residents participated. A prospective study to evaluate transfer of endotracheal intubation skills learned at the simulation centre to clinical practice (primary outcome) was conducted. A checklist of 28 skills and behaviours was used to assess the first supervised intubation performed during anaesthesia induction in ASA I/II patients. Secondary outcome was self-efficacy to perform epidural catheterization. A satisfaction survey was also performed. RESULTS Seventy-five percent of residents completed more than 21 out of 28 skills and behaviours to assess and control the airway during their first intubation in patients. Twelve items were performed by all residents and 5 by half of them. More than 83% of participants reported a high level of self-efficacy in placing an epidural catheter. All participants would recommend the course to their colleagues. CONCLUSIONS A focused intensive simulation-based boot-camp addressing key competencies required to begin anaesthesia residency was well received, and led to transfer of airway management skills learned to clinical settings when performing for first time on patients, and to increased self-reported efficacy in performing epidural catheterization.
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Affiliation(s)
- J L Rábago
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España
| | - M López-Doueil
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España
| | - R Sancho
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España
| | - P Hernández-Pinto
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España
| | - N Neira
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España
| | - E Capa
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España
| | - E Larraz
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España
| | - C G Redondo-Figuero
- Hospital virtual Valdecilla, Santander, España; Instituto de Investigación Sanitaria Valdecilla, Santander, España
| | - J M Maestre
- Hospital virtual Valdecilla, Santander, España; Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitario Valdecilla, Santander, España.
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16
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Sancho R, Cremona CA, Behrens A. Stem cell and progenitor fate in the mammalian intestine: Notch and lateral inhibition in homeostasis and disease. EMBO Rep 2015; 16:571-81. [PMID: 25855643 PMCID: PMC4428041 DOI: 10.15252/embr.201540188] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [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: 02/03/2015] [Revised: 03/10/2015] [Accepted: 03/11/2015] [Indexed: 01/17/2023] Open
Abstract
The control of cell fate decisions is vital to build functional organs and maintain normal tissue homeostasis, and many pathways and processes cooperate to direct cells to an appropriate final identity. Because of its continuously renewing state and its carefully organised hierarchy, the mammalian intestine has become a powerful model to dissect these pathways in health and disease. One of the signalling pathways that is key to maintaining the balance between proliferation and differentiation in the intestinal epithelium is the Notch pathway, most famous for specifying distinct cell fates in adjacent cells via the evolutionarily conserved process of lateral inhibition. Here, we will review recent discoveries that advance our understanding of how cell fate in the mammalian intestine is decided by Notch and lateral inhibition, focusing on the molecular determinants that regulate protein turnover, transcriptional control and epigenetic regulation.
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Affiliation(s)
- Rocio Sancho
- Mammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, London, UK
| | - Catherine A Cremona
- Mammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, London, UK
| | - Axel Behrens
- Mammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, London, UK School of Medicine, King's College London, London, UK
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17
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Calvo B, Keß M, Macias R, Sancho R, Lahoz F, Oro L. 3-Pyridylacetonitrile-ligated 11-vertex rhodathiaboranes: synthesis, characterization, and X-ray crystal structure. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.959004] [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] [Indexed: 10/24/2022]
Affiliation(s)
- B. Calvo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza – CSIC, Zaragoza, Spain
| | - M. Keß
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza – CSIC, Zaragoza, Spain
| | - R. Macias
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza – CSIC, Zaragoza, Spain
| | - R. Sancho
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza – CSIC, Zaragoza, Spain
| | - F.J. Lahoz
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza – CSIC, Zaragoza, Spain
| | - L.A. Oro
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza – CSIC, Zaragoza, Spain
- Center of Research Excellence in Refining & Petrochemicals, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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18
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Sancho R, Gruber R, Gu G, Behrens A. Loss of Fbw7 reprograms adult pancreatic ductal cells into α, δ, and β cells. Cell Stem Cell 2014; 15:139-53. [PMID: 25105579 PMCID: PMC4136739 DOI: 10.1016/j.stem.2014.06.019] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 04/11/2014] [Accepted: 06/26/2014] [Indexed: 02/06/2023]
Abstract
The adult pancreas is capable of limited regeneration after injury but has no defined stem cell population. The cell types and molecular signals that govern the production of new pancreatic tissue are not well understood. Here, we show that inactivation of the SCF-type E3 ubiquitin ligase substrate recognition component Fbw7 induces pancreatic ductal cells to reprogram into α, δ, and β cells. Loss of Fbw7 stabilized the transcription factor Ngn3, a key regulator of endocrine cell differentiation. The induced β cells resemble islet β cells in morphology and histology, express genes essential for β cell function, and release insulin after glucose challenge. Thus, loss of Fbw7 appears to reawaken an endocrine developmental differentiation program in adult pancreatic ductal cells. Our study highlights the plasticity of seemingly differentiated adult cells, identifies Fbw7 as a master regulator of cell fate decisions in the pancreas, and reveals adult pancreatic duct cells as a latent multipotent cell type.
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Affiliation(s)
- Rocio Sancho
- Mammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, 44, Lincoln's Inn Fields, London WC2A 3LY, UK
| | - Ralph Gruber
- Mammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, 44, Lincoln's Inn Fields, London WC2A 3LY, UK
| | - Guoqiang Gu
- Department of Cell and Developmental Biology, School of Medicine, Vanderbilt University, Nashville, TN 37232, USA
| | - Axel Behrens
- Mammalian Genetics Laboratory, Cancer Research UK London Research Institute, Lincoln's Inn Fields Laboratories, 44, Lincoln's Inn Fields, London WC2A 3LY, UK; School of Medicine, King's College London, Guy's Campus, London SE1 1UL, UK.
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Jimenez-Jorge S, Pozo F, de Mateo S, Delgado-Sanz C, Casas I, Garcia-Cenoz M, Castilla J, Sancho R, Etxebarriarteun-Aranzabal L, Quinones C, Martinez E, Vega T, Garcia A, Gimenez J, Vanrell JM, Castrillejo D, Larrauri A. Influenza vaccine effectiveness in Spain 2013/14: subtype-specific early estimates using the cycEVA study. ACTA ACUST UNITED AC 2014; 19. [PMID: 24626206 DOI: 10.2807/1560-7917.es2014.19.9.20727] [Citation(s) in RCA: 18] [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] [Indexed: 11/20/2022]
Abstract
Adjusted early estimates of the 2013/14 influenza vaccine effectiveness (VE) in Spain for all age groups was 35% (95% CI: -9 to 62), 33% (95% CI: -33 to 67) and 28% (95% CI: -33 to 61) against any influenza virus type, A(H1N1)pdm09 and A(H3N2) viruses, respectively. For the population targeted for vaccination, the adjusted VE was 44% (95% CI: -11 to 72), 36% (95% CI: -64 to 75) and 42% (95% CI: -29 to 74), respectively. These preliminary results in Spain suggest a suboptimal protective effect of the vaccine against circulating influenza viruses.
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Affiliation(s)
- S Jimenez-Jorge
- National Centre of Epidemiology, Institute of Health Carlos III, Madrid, Spain
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20
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Maestre JM, Sancho R, Rábago JL, Del Moral I. [Curricular design in anesthesiology using clinical simulation as a teaching tool]. Rev Esp Anestesiol Reanim 2014; 61:55-56. [PMID: 24144350 DOI: 10.1016/j.redar.2013.07.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 07/24/2013] [Indexed: 06/02/2023]
Affiliation(s)
- J M Maestre
- Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital virtual Valdecilla, Santander, España.
| | - R Sancho
- Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital virtual Valdecilla, Santander, España
| | - J L Rábago
- Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital virtual Valdecilla, Santander, España
| | - I Del Moral
- Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital virtual Valdecilla, Santander, España
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21
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Sancho R, Blake SM, Tendeng C, Clurman BE, Lewis J, Behrens A. Fbw7 repression by hes5 creates a feedback loop that modulates Notch-mediated intestinal and neural stem cell fate decisions. PLoS Biol 2013; 11:e1001586. [PMID: 23776410 PMCID: PMC3679002 DOI: 10.1371/journal.pbio.1001586] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 05/02/2013] [Indexed: 11/18/2022] Open
Abstract
FBW7 is a crucial component of an SCF-type E3 ubiquitin ligase, which mediates degradation of an array of different target proteins. The Fbw7 locus comprises three different isoforms, each with its own promoter and each suspected to have a distinct set of substrates. Most FBW7 targets have important functions in developmental processes and oncogenesis, including Notch proteins, which are functionally important substrates of SCF(Fbw7). Notch signalling controls a plethora of cell differentiation decisions in a wide range of species. A prominent role of this signalling pathway is that of mediating lateral inhibition, a process where exchange of signals that repress Notch ligand production amplifies initial differences in Notch activation levels between neighbouring cells, resulting in unequal cell differentiation decisions. Here we show that the downstream Notch signalling effector HES5 directly represses transcription of the E3 ligase Fbw7β, thereby directly bearing on the process of lateral inhibition. Fbw7(Δ/+) heterozygous mice showed haploinsufficiency for Notch degradation causing impaired intestinal progenitor cell and neural stem cell differentiation. Notably, concomitant inactivation of Hes5 rescued both phenotypes and restored normal stem cell differentiation potential. In silico modelling suggests that the NICD/HES5/FBW7β positive feedback loop underlies Fbw7 haploinsufficiency. Thus repression of Fbw7β transcription by Notch signalling is an essential mechanism that is coupled to and required for the correct specification of cell fates induced by lateral inhibition.
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Affiliation(s)
- Rocio Sancho
- Mammalian Genetics Laboratory, CR UK London Research Institute, Lincoln's Inn Fields Laboratories, London, United Kingdom
| | - Sophia M. Blake
- Mammalian Genetics Laboratory, CR UK London Research Institute, Lincoln's Inn Fields Laboratories, London, United Kingdom
| | - Christian Tendeng
- Vertebrate Development Laboratory, CR UK London Research Institute, Lincoln's Inn Fields Laboratories, London, United Kingdom
| | - Bruce E. Clurman
- University of Washington School of Medicine, Seattle, Washington, United States of America
| | - Julian Lewis
- Vertebrate Development Laboratory, CR UK London Research Institute, Lincoln's Inn Fields Laboratories, London, United Kingdom
| | - Axel Behrens
- Mammalian Genetics Laboratory, CR UK London Research Institute, Lincoln's Inn Fields Laboratories, London, United Kingdom
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22
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Sancho R, Rábago JL, Maestre JM, Del Moral I, Carceller JM. [Bringing clinical simulation into anesthesiology and postoperative recovery care residency training]. ACTA ACUST UNITED AC 2012; 57:656-63. [PMID: 22283018 DOI: 10.1016/s0034-9356(10)70302-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This article describes the use of clinical simulations for training residents in anesthesiology and postoperative recovery care at Hospital Universitario Marqués de Valdecilla. A working group defined criteria for the competencies residents would acquire by means of simulation training, designed the scenarios to be used, and took responsibility for coordinating and funding the program. We used the platform of the Critical Events Training Center of the Marcelino Botin Foundation, now part of our center's virtual hospital. The simulation-based training modules include 4 activities in the residents' first year, 3 in each of the second and third years, and 4 in the fourth year; all center on acquisition of the identified competencies and take into consideration the time availability of residents and instructors and the budget. We have concluded that integrating clinical simulations into residency training is a challenge for educators, given that a large part of the benefit derived from this tool comes from complementing it with other instructional resources and adapting it to the syllabus. More studies are required to establish criteria to guide the integration of this tool into the curriculum in those areas of the specialty where it can work most efficiently; the effectiveness of the approach also needs to be assessed. Simulations facilitate training without putting patients at risk and provide residents with early exposure to situations that might otherwise be difficult to observe. This tool also encourages the practice of reflective clinical decision-making.
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Affiliation(s)
- R Sancho
- Hospital Virtual Valdecilla, Servicio Anestesiología, Reanimación y Terapia del Dolor, Hospital Universitario Marqués de Valdecilla, Santander
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Sancho R, Giuseppe AD, Castarlenas R, Lahoz FJ, Oro LA. Structural aspects of new n-heterocyclic carbene-rhodium catalysts. Acta Crystallogr A 2011. [DOI: 10.1107/s010876731108439x] [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: 11/10/2022] Open
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24
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Jandke A, Da Costa C, Sancho R, Nye E, Spencer-Dene B, Behrens A. The F-box protein Fbw7 is required for cerebellar development. Dev Biol 2011; 358:201-12. [PMID: 21827743 DOI: 10.1016/j.ydbio.2011.07.030] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 07/20/2011] [Accepted: 07/21/2011] [Indexed: 12/15/2022]
Abstract
The F-box protein Fbw7 (also known as Fbxw7, hCdc4 and Sel-10) functions as a substrate recognition component of a SCF-type E3 ubiquitin ligase. SCF(Fbw7) facilitates polyubiquitination and subsequent degradation of various proteins such as Notch, cyclin E, c-Myc and c-Jun. Fbw7 is highly expressed in the nervous system and controls neural stem cell differentiation and apoptosis via Notch and c-Jun during embryonic development (Hoeck et al., 2010). Fbw7 deletion in the neural lineage is perinatal lethal and thus prohibits studying the role of Fbw7 in the adult nervous system. fbw7 mRNA is highly expressed in the postnatal brain and to gain insights into the function of Fbw7 in postnatal neurogenesis we analysed Fbw7 function in the cerebellum. We generated conditional Fbw7-knockout mice (fbw7(∆Cb)) by inactivating Fbw7 specifically in the cerebellar anlage. This resulted in decreased cerebellar size, reduced Purkinje cell number and defects in axonal arborisation. Moreover, Fbw7-deficient cerebella showed supranumeral fissures and aberrant progenitor cell migration. Protein levels of the Fbw7 substrates Notch1 and N-terminally phosphorylated c-Jun were upregulated in fbw7(∆Cb) mice. Concomitant deletion of c-Jun, and also the junAA knock-in mutation which specifically abrogates c-Jun N-terminal phosphorylation, rescued Purkinje cell numbers and arborisation in the fbw7(∆Cb) background. Taken together these data demonstrate that Fbw7 is essential during cerebellar development, and identify N-terminally phosphorylated c-Jun as an important substrate of SCF(Fbw7) during neurogenesis.
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Affiliation(s)
- Anett Jandke
- Mammalian Genetics Laboratory, Cancer Research UK, London Research Institute, 44, Lincoln's Inn Fields, London, WC2A3LY, UK
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25
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Loizou J, Sancho R, Kanu N, Bolland D, Yang F, Rada C, Corcoran A, Behrens A. ATMIN is required for maintenance of genomic stability and suppression of B cell lymphoma. Cancer Cell 2011; 19:587-600. [PMID: 21575860 PMCID: PMC4452547 DOI: 10.1016/j.ccr.2011.03.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Revised: 01/05/2011] [Accepted: 03/28/2011] [Indexed: 12/03/2022]
Abstract
Defective V(D)J rearrangement of immunoglobulin heavy or light chain (IgH or IgL) or class switch recombination (CSR) can initiate chromosomal translocations. The DNA-damage kinase ATM is required for the suppression of chromosomal translocations but ATM regulation is incompletely understood. Here, we show that mice lacking the ATM cofactor ATMIN in B cells (ATMIN(ΔB/ΔB)) have impaired ATM signaling and develop B cell lymphomas. Notably, ATMIN(ΔB/ΔB) cells exhibited defective peripheral V(D)J rearrangement and CSR, resulting in translocations involving the Igh and Igl loci, indicating that ATMIN is required for efficient repair of DNA breaks generated during somatic recombination. Thus, our results identify a role for ATMIN in regulating the maintenance of genomic stability and tumor suppression in B cells.
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MESH Headings
- Animals
- Antigens, CD19/genetics
- Antigens, CD19/metabolism
- Ataxia Telangiectasia Mutated Proteins
- B-Lymphocytes/immunology
- B-Lymphocytes/metabolism
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Cell Cycle Proteins/metabolism
- Cells, Cultured
- DNA Breaks
- DNA-Binding Proteins/metabolism
- Gene Expression Regulation, Neoplastic
- Genes, Immunoglobulin Heavy Chain
- Genes, Immunoglobulin Light Chain
- Genomic Instability
- Immunoglobulin Class Switching
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/immunology
- Lymphoma, B-Cell/metabolism
- Lymphoma, B-Cell/pathology
- Lymphoma, B-Cell/prevention & control
- Mice
- Mice, Inbred ICR
- Mice, Knockout
- Mice, Nude
- Nuclear Proteins/deficiency
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Protein Serine-Threonine Kinases/metabolism
- Recombination, Genetic
- Signal Transduction
- Time Factors
- Transcription Factors
- Tumor Suppressor Proteins/deficiency
- Tumor Suppressor Proteins/genetics
- Tumor Suppressor Proteins/metabolism
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Affiliation(s)
- Joanna I. Loizou
- Mammalian Genetics Lab, Cancer Research UK, London Research Institute, 44, Lincoln's Inn Fields, London WC2A 3LY, UK
| | - Rocio Sancho
- Mammalian Genetics Lab, Cancer Research UK, London Research Institute, 44, Lincoln's Inn Fields, London WC2A 3LY, UK
| | - Nnennaya Kanu
- Mammalian Genetics Lab, Cancer Research UK, London Research Institute, 44, Lincoln's Inn Fields, London WC2A 3LY, UK
| | - Daniel J. Bolland
- The Babraham Institute, Laboratory of Chromatin and Gene Expression, Cambridge CB22 3AT, UK
| | - Fengtang Yang
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Cristina Rada
- Medical Research Council Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK
| | - Anne E. Corcoran
- The Babraham Institute, Laboratory of Chromatin and Gene Expression, Cambridge CB22 3AT, UK
| | - Axel Behrens
- Mammalian Genetics Lab, Cancer Research UK, London Research Institute, 44, Lincoln's Inn Fields, London WC2A 3LY, UK
- Corresponding author
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26
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Sancho R, Jandke A, Davis H, Diefenbacher ME, Tomlinson I, Behrens A. F-box and WD repeat domain-containing 7 regulates intestinal cell lineage commitment and is a haploinsufficient tumor suppressor. Gastroenterology 2010; 139:929-41. [PMID: 20638938 DOI: 10.1053/j.gastro.2010.05.078] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [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] [Received: 01/05/2010] [Revised: 05/17/2010] [Accepted: 05/25/2010] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS The E3 ubiquitin ligase F-box and WD repeat domain-containing 7 (Fbw7) degrades several proto-oncogenes including c-Myc, cyclinE, Notch1, and c-Jun. Fbw7 is the fourth most frequently mutated gene in human colorectal carcinomas and has recently been described as a poor prognosis marker in human colorectal carcinoma; however, the molecular mechanism underlying fbw7 mutations in intestinal tumor suppression is unclear. METHODS To address the role of fbw7 in intestinal homeostasis and tumorigenesis, we generated conditional knock-out mice lacking fbw7 in the intestine and evaluated the effect of fbw7 absence in normal intestinal homeostasis and in adenomatous polyposis coli-mediated tumorigenesis. In parallel, we analyzed a cohort of human tumors bearing mutations in fbw7. RESULTS Fbw7 was found to be highly expressed in the transit-amplifying progenitor cell compartment, and its deletion resulted in impaired goblet cell differentiation and accumulation of highly proliferating progenitor cells. This function of Fbw7 was mirrored during tumor formation because absence of Fbw7 increased proliferation and decreased differentiation of tumors triggered by aberrant Wnt signalling. Fbw7 exhibited haploinsufficiency for intestinal tumor suppression. Biallelic fbw7 inactivation increased cellular proliferation in physiologic and pathologic conditions in a c-Jun-dependent manner. Increased Notch activity was also observed in human tumors carrying heterozygous fbw7 mutations, suggesting that fbw7 haploinsufficiency for antagonizing Notch activity is conserved between human and murine cancers. CONCLUSIONS Fbw7 regulates intestinal biology and tumorigenesis by controlling the abundance of different substrates in a dose-dependent fashion, providing a molecular explanation for the heterozygous mutations of fbw7 observed in human colorectal carcinoma.
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Affiliation(s)
- Rocio Sancho
- Mammalian Genetics Laboratory, CR UK London Research Institute, Lincoln's Inn Fields Laboratories, London, UK
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27
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Sancho R, Nateri AS, de Vinuesa AG, Aguilera C, Nye E, Spencer-Dene B, Behrens A. JNK signalling modulates intestinal homeostasis and tumourigenesis in mice. EMBO J 2009; 28:1843-54. [PMID: 19521338 DOI: 10.1038/emboj.2009.153] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Accepted: 05/12/2009] [Indexed: 01/08/2023] Open
Abstract
Wnt signalling is a crucial signalling pathway controlling intestinal homeostasis and cancer. We show here that the JNK MAP kinase pathway and one of its most important substrates, the AP-1 transcription factor c-Jun, modulates Wnt signalling strength in the intestine. Transgenic gut-specific augmentation of JNK signalling stimulated progenitor cell proliferation and migration, resulting in increased villus length. In the crypt, c-Jun protein was highly expressed in progenitor cells and the absence of c-Jun resulted in decreased proliferation and villus length. In addition to several known c-Jun/AP-1 target genes, expression of Wnt target genes Axin2 and Lgr5 were stimulated by JNK activation, suggesting a cross talk of JNK to Wnt signalling. Expression of the Wnt pathway component TCF4 was controlled by JNK activity, and chromatin immunoprecipitation and reporter assays identified tcf4 as a direct c-Jun target gene. Consequently, increased JNK activity accelerated tumourigenesis in a model of colorectal carcinogenesis. As c-jun is a direct target of the TCF4/beta-catenin complex, the control of tcf4 expression by JNK/c-Jun leads to a positive feedback loop that connects JNK and Wnt signalling. This mechanism regulates the physiological function of progenitor cells and oncogenic transformation.
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Affiliation(s)
- Rocio Sancho
- Mammalian Genetics Laboratory, CRUK London Research Institute, Lincoln's Inn Fields Laboratories, London, UK
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28
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Vergara P, Trullols L, Sancho R, Crusi X, Valera M. MIS vs. standard total hip arthroplasty: a comparative study. Rev Esp Cir Ortop Traumatol (Engl Ed) 2009. [DOI: 10.1016/s1988-8856(09)70146-4] [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] Open
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29
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Tshikalange TE, Meyer JJM, Lall N, Muñoz E, Sancho R, Van de Venter M, Oosthuizen V. In vitro anti-HIV-1 properties of ethnobotanically selected South African plants used in the treatment of sexually transmitted diseases. J Ethnopharmacol 2008; 119:478-481. [PMID: 18809485 DOI: 10.1016/j.jep.2008.08.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2008] [Revised: 08/08/2008] [Accepted: 08/24/2008] [Indexed: 05/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE [corrected The plants selected in this study are used traditionally in the treatment of sexually transmitted diseases and traditional healers interviewed claimed these plants can also help AIDS patients. AIM To evaluating the in vitro anti-HIV properties of selected plants in various bioassays. MATERIALS AND METHODS The extracts were evaluated for their inhibition against alpha-glycohydrolase, reverse transcriptase and viral proteins (NF-kappaB and Tat) which play a significant role in the HIV life cycle. RESULTS Terminalia sericea extract (IC(50)=92mg/ml) exhibited a considerable alpha-glucosidase inhibitory activity which was better than acarbose (IC(50)=131mg/ml) under our assay conditions. In the reverse transcriptase assay, T. sericea also showed good inhibitory activity (IC(50)=43mg/ml), which was higher than that of the reference drug, Adriamycin (IC(50)=100mg/ml). The ethyl acetate extract of Elaeodendron transvaalense exhibited the most potent inhibitory activity in both the NF-kappaB and Tat assays with inhibitory activity of 76% and 75% respectively at a concentration of 15mg/ml. The acetone and chloroform extracts of E. transvaalense and Zanthoxylum davyi also showed good activity in the NF-kappaB and Tat assays.
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Affiliation(s)
- T E Tshikalange
- Department of Plant Science, University of Pretoria, Pretoria 0002, South Africa.
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30
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Weigert AL, Pires A, Adragão T, Cardoso E, Cardoso C, Sancho R, Trindade H, Pimentel MS, Casqueiro A, Machado D. Human herpes virus-8 serology and DNA analysis in recipients of renal allografts showing Kaposi's sarcoma and their respective donors. Transplant Proc 2005; 36:902-4. [PMID: 15194310 DOI: 10.1016/j.transproceed.2004.05.023] [Citation(s) in RCA: 8] [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: 11/28/2022]
Abstract
Kaposi's sarcoma (KS) developed among 11 of 416 renal allograft recipients transplanted between 1985 and 2000. Only 3 among 364 Caucasian recipients developed KS, while it affected 8 of 52 Black patients, all of whom had been born in African countries (P <.001). All patients had their immunosuppression reduced; two also received daunorubicin and one received electrotherapy. Three patients developed accelerated renal allograft dysfunction, probably due to the reduced immunosuppression. Remission of KS was observed in seven patients, while lesions stabilized or improved partially in the other four. After resuming dialysis 2 of 11 patients died; both were in KS remission. Human herpes virus-8 (HHV-8) serology and DNA analysis was evaluated in sera obtained from seven donors: all were negative. Conversely, among eight sera collected pretransplant from the nine living recipients, HHV-8 IgG was detected in six and DNA was present in one. HHV-8 IgG was expressed in all patients (9/9) at some point posttransplant; DNA was detected in three patients. Therefore, the robust ethnic predisposition to KS was associated with a high pretransplant prevalence of HHV-8 among African recipients. Although some seroconversions were detected posttransplant, there was no evidence for donor-to-recipient transmission.
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Affiliation(s)
- A L Weigert
- Renal Transplant Unit, Santa Cruz Hospital, Carnaxide, Portugal.
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31
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Macho A, Lucena C, Sancho R, Daddario N, Minassi A, Muñoz E, Appendino G. Non-pungent capsaicinoids from sweet pepper synthesis and evaluation of the chemopreventive and anticancer potential. Eur J Nutr 2003; 42:2-9. [PMID: 12594536 DOI: 10.1007/s00394-003-0394-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Capsiate, the non-pungent ester isoster of capsaicin, and its dihydroderivative are the major capsaicinoids of sweet peppers. The remarkable difference between the sensory properties of capsaicin vs capsiate is solely due to the way the vanillyl and the acyl moieties of this basic structural motif are linked, via an amide bond in capsaicin-type compounds and via an ester bond in capsiate-type compounds. AIM OF THE STUDY Since capsaicin induces apoptosis in tumoral cells by a vanilloid receptor type 1(VR1)-independent pathway, we examined the effects of capsiates derived from sweet peppers in the ROS generation and induction of apoptosis in tumoral cells and if these are mediated independently from VR1. METHODS We have developed an expeditious synthesis of capsiates based on the esterification of vanillol with the Mitsunobu protocol. Capsiate-induction of apoptosis, generation of reactive oxygen species and disruption of the mitochondria transmembrane potential in tumoral cell lines were measured by flow cytometry. Chemopreventive activity was studied in a two-stage mouse skin carcinogenesis assay. RESULTS Capsiates induce apoptosis that was preceded by an increase in the production of reactive oxygen species and by a subsequent loss of mitochondria transmembrane potential (DeltaPsi(m)). These properties were retained in simplified synthetic analogues of natural capsiates, one of which (nor-dihydrocapsiate) showed powerful chemopreventive activity. CONCLUSIONS These results suggest that capsiates and related synthetic analogues target a variety of pathways involved in cancer development and inflammation, and have considerable potential for dietary health benefits as well as for pharmaceutical development.
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Affiliation(s)
- Antonio Macho
- Departamento de Biología Celular, Fisiología e Inmunología, Univ. de Córdoba, Avda de Menéndez Pidal s/n, Spain
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Ferrer C, Ferrández A, Dualde D, Rodriguez M, Ferrer E, Pinazo J, Sancho R. Squamous cell carcinoma of the thyroglossal duct cyst: report of a new case and literature review. J Otolaryngol 2000; 29:311-4. [PMID: 11108492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- C Ferrer
- Servicio de Radioterapia, Hospital Clínico Universitario de Valencia, Spain
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Ferrer C, Ramos V, Ferrer E, Sancho R. The role of radiotherapy in the management of salivary gland neoplasms. Med Oral 1998; 3:207-221. [PMID: 11507497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Affiliation(s)
- C. Ferrer
- Servicio de Radioterapia. Hospital Clinico Universitario de Valencia. Universidad de Valencia. Spain
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Pinazo J, Ferrer C, Real E, Dualde D, González A, Sancho R. [Skin lesions in epidemic Kaposi's sarcoma (AIDS): local control assessment and esthetic results of a schedule of superficial radiotherapy]. Rev Clin Esp 1996; 196:806-10. [PMID: 9132855] [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: 02/04/2023]
Abstract
This prospective study was undertaken to evaluate the clinical response of 51 cutaneous lesions of epidemic Kaposi sarcoma in patients with AIDS (EKS/AIDS), obtained with the use of a scheme of superficial radiotherapy (3 Gy/fraction, three fractions weekly up to a total dose of 30 Gy). The mean follow-up time was 9.3 months and the mean time to progression of EKS/AIDS disease was 7-8 months. The initial clinical parameters (pain, size, edema, and esthetics) of each cutaneous lesion were compared with those obtained after one week, one month and three months of therapy. An objective pain improvement was observed in 72% of early lesions and with statistic significance (after one week p = 0.003). After one month of therapy a decrease in lesion size, edema, and esthetic improvement was observed in 78%, 71% and 77%, respectively. Although the evolution and prognosis of EKS/AIDS remains unchanged, it indeed provided palliation, with improvement of local control and esthetics, which together with the simplicity of its application and absence of untoward effects render this radiotherapy technique a very useful indication.
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Affiliation(s)
- J Pinazo
- Servicio de Radioterapia, Hospital Clínico Universitario, Valencia
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