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Shu DH, Ho WJ, Kagohara LT, Girgis A, Shin SM, Danilova L, Lee JW, Sidiropoulos DN, Mitchell S, Munjal K, Howe K, Bendinelli KJ, Qi H, Mo G, Montagne J, Leatherman JM, Lopez-Vidal TY, Zhu Q, Huff AL, Yuan X, Hernandez A, Coyne EM, Zaidi N, Zabransky DJ, Engle LL, Ogurtsova A, Baretti M, Laheru D, Durham JN, Wang H, Anders R, Jaffee EM, Fertig EJ, Yarchoan M. Immune landscape of tertiary lymphoid structures in hepatocellular carcinoma (HCC) treated with neoadjuvant immune checkpoint blockade. bioRxiv 2023:2023.10.16.562104. [PMID: 37904980 PMCID: PMC10614819 DOI: 10.1101/2023.10.16.562104] [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] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Neoadjuvant immunotherapy is thought to produce long-term remissions through induction of antitumor immune responses before removal of the primary tumor. Tertiary lymphoid structures (TLS), germinal center-like structures that can arise within tumors, may contribute to the establishment of immunological memory in this setting, but understanding of their role remains limited. Here, we investigated the contribution of TLS to antitumor immunity in hepatocellular carcinoma (HCC) treated with neoadjuvant immunotherapy. We found that neoadjuvant immunotherapy induced the formation of TLS, which were associated with superior pathologic response, improved relapse free survival, and expansion of the intratumoral T and B cell repertoire. While TLS in viable tumor displayed a highly active mature morphology, in areas of tumor regression we identified an involuted TLS morphology, which was characterized by dispersion of the B cell follicle and persistence of a T cell zone enriched for ongoing antigen presentation and T cell-mature dendritic cell interactions. Involuted TLS showed increased expression of T cell memory markers and expansion of CD8+ cytotoxic and tissue resident memory clonotypes. Collectively, these data reveal the circumstances of TLS dissolution and suggest a functional role for late-stage TLS as sites of T cell memory formation after elimination of viable tumor.
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Affiliation(s)
- Daniel H. Shu
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Won Jin Ho
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Luciane T. Kagohara
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Alexander Girgis
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sarah M. Shin
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ludmila Danilova
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jae W. Lee
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Dimitrios N. Sidiropoulos
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Sarah Mitchell
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kabeer Munjal
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kathryn Howe
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kayla J. Bendinelli
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Hanfei Qi
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Guanglan Mo
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Janelle Montagne
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - James M. Leatherman
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Tamara Y. Lopez-Vidal
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Qingfeng Zhu
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Amanda L. Huff
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Xuan Yuan
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alexei Hernandez
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Erin M. Coyne
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Neeha Zaidi
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Daniel J. Zabransky
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Logan L. Engle
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland
- The Mark Foundation Center for Advanced Genomics and Imaging, Johns Hopkins University, Baltimore, Maryland
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
| | - Aleksandra Ogurtsova
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland
- The Mark Foundation Center for Advanced Genomics and Imaging, Johns Hopkins University, Baltimore, Maryland
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
| | - Marina Baretti
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Daniel Laheru
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
| | - Jennifer N. Durham
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Hao Wang
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Robert Anders
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Elizabeth M. Jaffee
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
| | - Elana J. Fertig
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Applied Mathematics and Statistics, Johns Hopkins University Whiting School of Engineering, Baltimore, Maryland
| | - Mark Yarchoan
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Convergence Institute, Johns Hopkins University, Baltimore, Maryland
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
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2
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Parotto M, Gyöngyösi M, Howe K, Myatra SN, Ranzani O, Shankar-Hari M, Herridge MS. Post-acute sequelae of COVID-19: understanding and addressing the burden of multisystem manifestations. Lancet Respir Med 2023:S2213-2600(23)00239-4. [PMID: 37475125 DOI: 10.1016/s2213-2600(23)00239-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/22/2023]
Abstract
Individuals with SARS-CoV-2 infection can develop symptoms that persist well beyond the acute phase of COVID-19 or emerge after the acute phase, lasting for weeks or months after the initial acute illness. The post-acute sequelae of COVID-19, which include physical, cognitive, and mental health impairments, are known collectively as long COVID or post-COVID-19 condition. The substantial burden of this multisystem condition is felt at individual, health-care system, and socioeconomic levels, on an unprecedented scale. Survivors of COVID-19-related critical illness are at risk of the well known sequelae of acute respiratory distress syndrome, sepsis, and chronic critical illness, and these multidimensional morbidities might be difficult to differentiate from the specific effects of SARS-CoV-2 and COVID-19. We provide an overview of the manifestations of post-COVID-19 condition after critical illness in adults. We explore the effects on various organ systems, describe potential pathophysiological mechanisms, and consider the challenges of providing clinical care and support for survivors of critical illness with multisystem manifestations. Research is needed to reduce the incidence of post-acute sequelae of COVID-19-related critical illness and to optimise therapeutic and rehabilitative care and support for patients.
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Affiliation(s)
- Matteo Parotto
- Department of Anesthesiology and Pain Medicine, University of Toronto, ON, Canada; Interdepartmental Division of Critical Care Medicine, University of Toronto, ON, Canada; Department of Anesthesia and Pain Medicine, Toronto General Hospital, Toronto, ON, Canada.
| | - Mariann Gyöngyösi
- Division of Cardiology, 2nd Department of Internal Medicine, Medical University of Vienna, Vienna, Austria
| | - Kathryn Howe
- Division of Vascular Surgery, University Health Network, Toronto, ON, Canada
| | - Sheila N Myatra
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Otavio Ranzani
- Barcelona Institute for Global Health, ISGlobal, Barcelona, Spain; Pulmonary Division, Heart Institute, Faculty of Medicine, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Manu Shankar-Hari
- The Queen's Medical Research Institute, Edinburgh BioQuarter, Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Margaret S Herridge
- Department of Medicine, University of Toronto, ON, Canada; Interdepartmental Division of Critical Care Medicine, University of Toronto, ON, Canada; Department of Medicine, University Health Network, Toronto, ON, Canada
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3
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Kamdar Z, Lopez-Vidal T, Howe K, Munjal K, Saeed A, Zabransky D, Shu D, Longway G, Kartalia E, Leatherman J, Mohan A, Khare P, Zhang C, Le A, Pearce E, Furth M, Baretti M, Leone R, Jaffee E, Yarchoan M. Abstract 3679: DNAJB1-PRKACA fusion in fibrolamellar hepatocellular carcinoma induces glutamine addiction and an immunosuppressive tumor microenvironment. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-3679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Fibrolamellar hepatocellular carcinoma (FLC) is a rare and often lethal form of liver cancer that primarily affects children and young adults. A fusion between DNAJB1, a heat shock chaperone protein, and PRKACA, the catalytic domain of protein kinase A (PKA) has been identified as a signature genomic event in FLC, but the effect of this fusion on the tumor immune microenvironment is not understood. We created an orthotopic, syngeneic model of FLC (TIBx-FLC) by inducing the DNAJB1-PRKACA fusion in a murine hepatoblastoma-derived cell line (TIBx). CD8 T cells isolated from TIBx-FLC tumors demonstrated markedly impaired activation as compared to CD8 T cells isolated from control TIBx tumors. We investigated metabolic programming as a potential mechanism for DNAJB1-PRKACA immunosuppression in FLC. Labeled glucose metabolomics performed on TIBx-FLC and TIBx tumor cells demonstrated a metabolic shift away from aerobic metabolism to an increased glucose contribution towards the hexosamine biosynthetic pathway and purine synthesis, which requires glutamine as a nitrogen source. As compared to the parental TIBx cell line, the TIBx-FLC cell line demonstrated high sensitivity to glutamine antagonism in vitro, consistent with glutamine addiction. Systemic treatment of BALB/c mice bearing TIBx-FLC tumors with JHU-083, a glutamine antagonist, in combination with immune checkpoint inhibitor therapy enhanced survival as compared to vehicle or monotherapy. These data identify altered glutamine metabolism as a target in FLC, and may provide an explanation for immune suppression seen in the FLC tumor microenvironment.
Citation Format: Zeal Kamdar, Tamara Lopez-Vidal, Kathryn Howe, Kabeer Munjal, Ali Saeed, Daniel Zabransky, Daniel Shu, Gabriella Longway, Emma Kartalia, James Leatherman, Aditya Mohan, Pratik Khare, Cissy Zhang, Anne Le, Erika Pearce, Mark Furth, Marina Baretti, Robert Leone, Elizabeth Jaffee, Mark Yarchoan. DNAJB1-PRKACA fusion in fibrolamellar hepatocellular carcinoma induces glutamine addiction and an immunosuppressive tumor microenvironment. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 3679.
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Affiliation(s)
- Zeal Kamdar
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Kathryn Howe
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | - Kabeer Munjal
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | - Ali Saeed
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Daniel Shu
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Emma Kartalia
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | | | | | - Pratik Khare
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | - Cissy Zhang
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Erika Pearce
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | - Mark Furth
- 4Fibrolamellar Cancer Foundation, Greenwich, CT
| | - Marina Baretti
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | - Robert Leone
- 1Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Mark Yarchoan
- 1Johns Hopkins University School of Medicine, Baltimore, MD
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4
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Taha HB, Hornung S, Dutta S, Fenwick L, Lahgui O, Howe K, Elabed N, Del Rosario I, Wong DY, Duarte Folle A, Markovic D, Palma JA, Kang UJ, Alcalay RN, Sklerov M, Kaufmann H, Fogel BL, Bronstein JM, Ritz B, Bitan G. Toward a biomarker panel measured in CNS-originating extracellular vesicles for improved differential diagnosis of Parkinson's disease and multiple system atrophy. Transl Neurodegener 2023; 12:14. [PMID: 36935518 PMCID: PMC10026428 DOI: 10.1186/s40035-023-00346-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 03/03/2023] [Indexed: 03/21/2023] Open
Affiliation(s)
- Hash Brown Taha
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
- Department of Integrative Biology and Physiology, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Simon Hornung
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
- Division of Peptide Biochemistry, TUM School of Life Sciences, Technical University of Munich, 85354, Freising, Germany
| | - Suman Dutta
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Leony Fenwick
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Otmane Lahgui
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Kathryn Howe
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Nour Elabed
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Irish Del Rosario
- Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Darice Y Wong
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Aline Duarte Folle
- Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Daniela Markovic
- Department of Medicine Statistics Core, Division of General Internal Medicine and Health Services Research, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Jose-Alberto Palma
- Department of Neurology, Dysautonomia Center, New York University School of Medicine, New York, NY, 10016, USA
| | - Un Jung Kang
- Department of Neurology, The Marlene and Paolo Fresco Institute for Parkinson's and Movement Disorders, New York University School of Medicine, New York, NY, 10016, USA
| | - Roy N Alcalay
- Department of Neurology, Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, 10032, USA
- Department of Neurology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Miriam Sklerov
- Department of Neurology, University of North Carolina School of Medicine, Chapel Hill, NC, 27599, USA
| | - Horacio Kaufmann
- Department of Neurology, Dysautonomia Center, New York University School of Medicine, New York, NY, 10016, USA
| | - Brent L Fogel
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
- UCLA Clinical Neurogenomics Research Center, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA
| | - Jeff M Bronstein
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
- Brain Research Institute, University of California, Los Angeles, CA, 90095, USA
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, 90095, USA
- Brain Research Institute, University of California, Los Angeles, CA, 90095, USA
| | - Gal Bitan
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA.
- Brain Research Institute, University of California, Los Angeles, CA, 90095, USA.
- Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA, 90095, USA.
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Gustafson D, Ngai M, Wu R, Hou H, Erice C, Wilson M, Kain K, Hanneman K, Thavendiranathan P, Fish J, Howe K. Abstract 111: Multiparametric Circulating Cardiovascular Biomarkers Elucidate A Molecular Signature Of Coronavirus Disease 2019 Mortality And Identify Vascular Barrier Stabilizing Therapies. Arterioscler Thromb Vasc Biol 2022. [DOI: 10.1161/atvb.42.suppl_1.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background:
Endothelial cell (EC) activation, endotheliitis, vascular permeability, and thrombosis have been observed in patients with severe COVID-19, indicating that the vasculature is affected during the acute stages of SARS-CoV-2 infection. It remains unknown whether circulating vascular markers are sufficient to predict clinical outcomes, unique to COVID-19 related pathology, and if vascular permeability can be therapeutically targeted.
Methods:
This is a secondary analysis of a prospectively recruited longitudinal multicenter cohort study enrolling 241 patients with suspected SARS-CoV-2 infection. The prevalence of circulating inflammatory, cardiac, EC activation, and the entirety of the microRNA transcriptome was evaluated, and the prognostic value assessed using a Random Forest model machine learning approach.
Ex vivo
experiments were performed to assess EC permeability responses to patient plasma and to derive modulated gene regulatory networks from which rational therapeutic selection could be inferred.
Results:
Multiple inflammatory and EC activation biomarkers were associated with mortality in COVID-19 patients and in severity-matched SARS-CoV-2-negative patients. In contrast, dysregulation of particular microRNAs at presentation was specific for poor COVID-19-related outcomes and revealed disease-relevant pathways. Integrating datasets (i.e., clinical, protein, and microRNA) using a machine learning approach further enhanced clinical risk prediction for in-hospital mortality. Exposure of ECs to COVID-19 patient plasma resulted in severity-specific gene expression responses and EC barrier dysfunction. ECs treated with patient plasma showed increased vascular permeability, which was ameliorated by treatment with the vascular stabilizing molecules angiopoietin-1 mimetic or recombinant Slit2-N, but not nangibotide or dexamethasone.
Conclusions:
Integration of multi-omics data identified microRNA and vascular biomarkers prognostic of in-hospital mortality in COVID-19 patients and revealed that vascular stabilizing therapies should be explored as a treatment for endothelial dysfunction in COVID-19, and other severe diseases where endothelial dysfunction has a central role in pathogenesis.
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Affiliation(s)
| | | | - Ruilin Wu
- Univ Health Network, Toronto, Canada
| | - Huayun Hou
- The Hosp For Sick Children, Toronto, Canada
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Stark JC, Mafeld S, Eisenberg N, Roche-Nagle G, McGilvray I, Howe K. Open Surgical and Endovascular Management of Hepatic Artery Aneurysms: A First Case Series Evaluation Following Updated Societal Guidelines. J Vasc Surg 2021. [DOI: 10.1016/j.jvs.2021.06.391] [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: 11/27/2022]
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Roberts G, Lloyd JJ, Kane JPM, Durcan R, Lawley S, Howe K, Petrides GS, O'Brien JT, Thomas AJ. Cardiac 123I-MIBG normal uptake values are population-specific: Results from a cohort of controls over 60 years of age. J Nucl Cardiol 2021; 28:1692-1701. [PMID: 31529384 DOI: 10.1007/s12350-019-01887-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 08/22/2019] [Indexed: 01/08/2023]
Abstract
PURPOSE Cardiac 123I-MIBG image interpretation is affected by population differences and technical factors. We recruited older adults without cognitive decline and compared their cardiac MIBG uptake with results from the literature. METHODS Phantom calibration confirmed that cardiac uptake results from Japan could be applied to our center. We recruited 31 controls, 17 individuals with dementia with Lewy bodies (DLB) and 15 with Alzheimer's disease (AD). Images were acquired 20 minutes and four hours after injection using Siemens cameras with medium-energy low-penetration (MELP) collimators. Local normal heart-to-mediastinum (HMR) ratios were compared to Japanese results. RESULTS Siemens gamma cameras with MELP collimators should give HMRs very close to the calibrated values used in Japan. However, our cut-offs with controls were lower at 2.07 for early and 1.86 for delayed images. Applying our lower cut-off to the dementia patients may increase the specificity of cardiac MIBG imaging for DLB diagnosis in a UK population without reducing sensitivity. CONCLUSIONS Our local HMR cut-off values are lower than in Japan, higher than in a large US study but similar to those found in another UK center. UK centers using other cameras and collimators may need to use different cut-offs to apply our results.
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Affiliation(s)
- G Roberts
- Institute of Neuroscience, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Westgate Road, Newcastle upon Tyne, NE4 6BE, UK.
- Nuclear Medicine Department, Leazes Wing, Royal Victoria Infirmary, Richardson Road, Newcastle upon Tyne, NE1 4LP, UK.
| | - J J Lloyd
- Institute of Neuroscience, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Westgate Road, Newcastle upon Tyne, NE4 6BE, UK
- Nuclear Medicine Department, Leazes Wing, Royal Victoria Infirmary, Richardson Road, Newcastle upon Tyne, NE1 4LP, UK
| | - J P M Kane
- Institute of Neuroscience, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Westgate Road, Newcastle upon Tyne, NE4 6BE, UK
| | - R Durcan
- Institute of Neuroscience, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Westgate Road, Newcastle upon Tyne, NE4 6BE, UK
| | - S Lawley
- Institute of Neuroscience, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Westgate Road, Newcastle upon Tyne, NE4 6BE, UK
| | - K Howe
- Nuclear Medicine Department, Leazes Wing, Royal Victoria Infirmary, Richardson Road, Newcastle upon Tyne, NE1 4LP, UK
| | - G S Petrides
- Nuclear Medicine Department, Leazes Wing, Royal Victoria Infirmary, Richardson Road, Newcastle upon Tyne, NE1 4LP, UK
| | - J T O'Brien
- Department of Psychiatry, University of Cambridge, Box 189, Level E4 Cambridge Biomedical Campus, Cambridge, CB2 0SP, UK
| | - A J Thomas
- Institute of Neuroscience, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Westgate Road, Newcastle upon Tyne, NE4 6BE, UK
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8
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Daugherty CE, Lento HG, Adams ML, Beckert EW, Bender ML, Berman S, Chow L, Davis C, Gedang D, Howe K, Murphy MJ, Porcuna M, Sabolish G, Shen CSJ, Smith NM, Tessaro A. Chloroform-Methanol Extraction Method for Determination of Fat in Foods: Collaborative Study. J AOAC Int 2020. [DOI: 10.1093/jaoac/66.4.927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Achloroform-methanol extraction method (complete extraction of fat in 3 min) for determining fat in processed and prepared foods has been studied collaboratively. Fourteen collaborators reported single replicate fat results on 7 samples representative of various food types and 2 spiked samples by the proposed method. Each sample was accompanied by a blind duplicate. For statistical purposes, the blind duplicates were treated as paired observations, and there were 2 laboratory outliers. There was a 97.9% agreement among the results from the remaining 12 collaborators and the Associate Referee for the unfortified samples. Recoveries of 93.8 and 98.3% were obtained on fortified samples, based on results obtained from 11 collaborators. The statistical analysis of the results indicate (ranges for standard deviations were Sr = 0.083-0.528, Sb = 0.101-0.379, Sd = 8.130-0.631, for fat values ranging from 1.58 to 26.91%) that this method is adequate for quantitating the fat content in a wide variety of processed foods for nutritional labeling. The method has been adopted official first action.
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Affiliation(s)
- Chester E Daugherty
- Campbell Institute for Research and Technology, Campbell Soup Co., Camden, Nf 08101
| | - Harry G Lento
- Campbell Institute for Research and Technology, Campbell Soup Co., Camden, Nf 08101
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9
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Howe K, Szalay D, Gould L, Pagliuso S, Fronzi L, Kubilius B, MacRae L, Algird A, Hawkes C, van Adel B, Larrazabal R, Oczkowski W, Sahlas D. Transforming Practice: Using a Systems-Based, Multidisciplinary Approach to Achieve a 600% Reduction in Early Symptomatic Carotid Revascularization Referral and Treatment. J Vasc Surg 2018. [DOI: 10.1016/j.jvs.2018.06.146] [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: 10/28/2022]
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Abstract
Kemp eliminases represent the most successful class of computationally designed enzymes, with rate accelerations of up to 109-fold relative to the rate of the same reaction in aqueous solution. Nevertheless, several other systems such as micelles, catalytic antibodies, and cavitands are known to accelerate the Kemp elimination by several orders of magnitude. We found that the naturally occurring enzyme ketosteroid isomerase (KSI) also catalyzes the Kemp elimination. Surprisingly, mutations of D38, the residue that acts as a general base for its natural substrate, produced variants that catalyze the Kemp elimination up to 7000-fold better than wild-type KSI does, and some of these variants accelerate the Kemp elimination more than the computationally designed Kemp eliminases. Analysis of the D38N general base KSI variant suggests that a different active site carboxylate residue, D99, performs the proton abstraction. Docking simulations and analysis of inhibition by active site binders suggest that the Kemp elimination takes place in the active site of KSI and that KSI uses the same catalytic strategies of the computationally designed enzymes. In agreement with prior observations, our results strengthen the conclusion that significant rate accelerations of the Kemp elimination can be achieved with very few, nonspecific interactions with the substrate if a suitable catalytic base is present in a hydrophobic environment. Computational design can fulfill these requirements, and the design of more complex and precise environments represents the next level of challenges for protein design.
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Affiliation(s)
- Vandana Lamba
- Department of Biochemistry, Stanford University , Stanford, California 94305, United States
| | - Enis Sanchez
- Department of Chemistry and Biochemistry, College of Charleston , Charleston, South Carolina 29424, United States
| | - Lauren Rose Fanning
- Department of Chemistry and Biochemistry, College of Charleston , Charleston, South Carolina 29424, United States
| | - Kathryn Howe
- Palmetto Homeschool Association , Rock Hill, South Carolina 29730, United States
| | | | - Daniel Herschlag
- Department of Biochemistry, Stanford University , Stanford, California 94305, United States.,Department of Chemistry, Department of Chemical Engineering, and Stanford ChEM-H, Stanford University , Stanford, California 94305, United States
| | - Marcello Forconi
- Department of Chemistry and Biochemistry, College of Charleston , Charleston, South Carolina 29424, United States
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Howe K, James N, Gladding P, Prabhakar C, Gavin A, Dawson L. Predicting CRT Response Using Machine Learning Analysis of Pre-Implant ECG Data. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Classen CF, William D, Linnebacher M, Farhod A, Kedr W, Elsabe B, Fadel S, Van Gool S, De Vleeschouwer S, Koks C, Garg A, Ehrhardt M, Riva M, De Vleeschouwer S, Agostinis P, Graf N, Van Gool S, Yao TW, Yoshida Y, Zhang J, Ozawa T, James D, Nicolaides T, Kebudi R, Cakir FB, Gorgun O, Agaoglu FY, Darendeliler E, Van Gool S, De Vleeschouwer S, Al-Kofide A, Al-Shail E, Khafaga Y, Al-Hindi H, Dababo M, Haq AU, Anas M, Barria MG, Siddiqui K, Hassounah M, Ayas M, van Zanten SV, Jansen M, van Vuurden D, Huisman M, Vugts D, Hoekstra O, van Dongen G, Kaspers G, Cockle J, Ilett E, Scott K, Bruning-Richardson A, Picton S, Short S, Melcher A, Benesch M, Warmuth-Metz M, von Bueren AO, Hoffmann M, Pietsch T, Kortmann RD, Eyrich M, Graf N, Rutkowski S, Fruhwald MC, Faber J, Kramm C, Porkholm M, Valanne L, Lonnqvist T, Holm S, Lannering B, Riikonen P, Wojcik D, Sehested A, Clausen N, Harila-Saari A, Schomerus E, Thorarinsdottir HK, Lahteenmaki P, Arola M, Thomassen H, Saarinen-Pihkala UM, Kivivuori SM, Buczkowicz P, Hoeman C, Rakopoulos P, Pajovic S, Morrison A, Bouffet E, Bartels U, Becher O, Hawkins C, Gould TWA, Rahman CV, Smith SJ, Barrett DA, Shakesheff KM, Grundy RG, Rahman R, Barua N, Cronin D, Gill S, Lowisl S, Hochart A, Maurage CA, Rocourt N, Vinchon M, Kerdraon O, Escande F, Grill J, Pick VK, Leblond P, Burzynski G, Janicki T, Burzynski S, Marszalek A, Ramani N, Zaky W, Kannan G, Morani A, Sandberg D, Ketonen L, Maher O, Corrales-Medina F, Meador H, Khatua S, Brassesco M, Delsin L, Roberto G, Silva C, Ana L, Rego E, Scrideli C, Umezawa K, Tone L, Kim SJ, Kim CY, Kim IA, Han JH, Choi BS, Ahn HS, Choi HS, Haque F, Rahman R, Layfield R, Grundy R, Gandola L, Pecori E, Biassoni V, Schiavello E, Chiruzzi C, Spreafico F, Modena P, Bach F, Pignoli E, Massimino M, Drogosiewicz M, Dembowska-Baginska B, Jurkiewicz E, Filipek I, Perek-Polnik M, Swieszkowska E, Perek D, Bender S, Jones DT, Warnatz HJ, Hutter B, Zichner T, Gronych J, Korshunov A, Eils R, Korbel JO, Yaspo ML, Lichter P, Pfister SM, Yadavilli S, Becher OJ, Kambhampati M, Packer RJ, Nazarian J, Lechon FC, Fowkes L, Khabra K, Martin-Retortillo LM, Marshall LV, Vaidya S, Koh DM, Leach MO, Pearson AD, Zacharoulis S, Lechon FC, Fowkes L, Khabra K, Martin-Retortillo LM, Marshall LV, Schrey D, Barone G, Vaidya S, Koh DM, Pearson AD, Zacharoulis S, Panditharatna E, Stampar M, Siu A, Gordish-Dressman H, Devaney J, Kambhampati M, Hwang EI, Packer RJ, Nazarian J, Chung AH, Mittapalli RK, Elmquist WF, Becher OJ, Castel D, Debily MA, Philippe C, Truffaux N, Taylor K, Calmon R, Boddaert N, Le Dret L, Saulnier P, Lacroix L, Mackay A, Jones C, Puget S, Sainte-Rose C, Blauwblomme T, Varlet P, Grill J, Entz-Werle N, Maugard C, Bougeard G, Nguyen A, Chenard MP, Schneider A, Gaub MP, Tsoli M, Vanniasinghe A, Luk P, Dilda P, Haber M, Hogg P, Ziegler D, Simon S, Tsoli M, Vanniasinghe A, Monje M, Gurova K, Gudkov A, Haber M, Ziegler D, Zapotocky M, Churackova M, Malinova B, Zamecnik J, Kyncl M, Tichy M, Puchmajerova A, Stary J, Sumerauer D, Boult J, Vinci M, Taylor K, Perryman L, Box G, Jury A, Popov S, Ingram W, Monje M, Eccles S, Jones C, Robinson S, Emir S, Demir HA, Bayram C, Cetindag F, Kabacam GB, Fettah A, Boult J, Li J, Vinci M, Jury A, Popov S, Jamin Y, Cummings C, Eccles S, Bamber J, Sinkus R, Jones C, Robinson S, Nandhabalan M, Bjerke L, Vinci M, Burford A, Ingram W, Mackay A, von Bueren A, Baudis M, Clarke P, Collins I, Workman P, Jones C, Taylor K, Mackay A, Vinci M, Popov S, Ingram W, Entz-Werle N, Monje M, Olaciregui N, Mora J, Carcaboso A, Bullock A, Jones C, Vinci M, Mackay A, Burford A, Taylor K, Popov S, Ingram W, Monje M, Alonso M, Olaciregui N, de Torres C, Cruz O, Mora J, Carcaboso A, Jones C, Filipek I, Drogosiewicz M, Perek-Polnik M, Swieszkowska E, Dembowska-Baginska B, Jurkiewicz E, Perek D, Nguyen A, Pencreach E, Mackay A, Moussalieh FM, Guenot D, Namer I, Chenard MP, Jones C, Entz-Werle N, Pollack I, Jakacki R, Butterfield L, Hamilton R, Panigrahy A, Potter D, Connelly A, Dibridge S, Whiteside T, Okada H, Ahsan S, Raabe E, Haffner M, Warren K, Quezado M, Ballester L, Nazarian J, Eberhart C, Rodriguez F, Ramachandran C, Nair S, Quirrin KW, Khatib Z, Escalon E, Melnick S, Classen CF, Hofmann M, Schmid I, Simon T, Maass E, Russo A, Fleischhack G, Becker M, Hauch H, Sander A, Kramm C, Grasso C, Truffaux N, Berlow N, Liu L, Debily MA, Davis L, Huang E, Woo P, Tang Y, Ponnuswami A, Chen S, Huang Y, Hutt-Cabezas M, Warren K, Dret L, Meltzer P, Mao H, Quezado M, van Vuurden D, Abraham J, Fouladi M, Svalina MN, Wang N, Hawkins C, Raabe E, Hulleman E, Li XN, Keller C, Spellman PT, Pal R, Grill J, Monje M, Jansen MHA, Sewing ACP, Lagerweij T, Vuchts DJ, van Vuurden DG, Caretti V, Wesseling P, Kaspers GJL, Hulleman E, Cohen K, Raabe E, Pearl M, Kogiso M, Zhang L, Qi L, Lindsay H, Lin F, Berg S, Li XN, Muscal J, Amayiri N, Tabori U, Campbel B, Bakry D, Aronson M, Durno C, Gallinger S, Malkin D, Qaddumi I, Musharbash A, Swaidan M, Bouffet E, Hawkins C, Al-Hussaini M, Rakopoulos P, Shandilya S, McCully C, Murphy R, Akshintala S, Cole D, Macallister RP, Cruz R, Widemann B, Warren K, Salloum R, Smith A, Glaunert M, Ramkissoon A, Peterson S, Baker S, Chow L, Sandgren J, Pfeifer S, Popova S, Alafuzoff I, de Stahl TD, Pietschmann S, Kerber MJ, Zwiener I, Henke G, Kortmann RD, Muller K, von Bueren A, Sieow NYF, Hoe RHM, Tan AM, Chan MY, Soh SY, Hawkins C, Burrell K, Chornenkyy Y, Remke M, Golbourn B, Buczkowicz P, Barzczyk M, Taylor M, Rutka J, Dirks P, Zadeh G, Agnihotri S, Hashizume R, Ihara Y, Andor N, Chen X, Lerner R, Huang X, Tom M, Solomon D, Mueller S, Petritsch C, Zhang Z, Gupta N, Waldman T, James D, Dujua A, Co J, Hernandez F, Doromal D, Hegde M, Wakefield A, Brawley V, Grada Z, Byrd T, Chow K, Krebs S, Heslop H, Gottschalk S, Yvon E, Ahmed N, Truffaux N, Philippe C, Cornilleau G, Paulsson J, Andreiuolo F, Guerrini-Rousseau L, Puget S, Geoerger B, Vassal G, Ostman A, Grill J, Parsons DW, Lin F, Trevino LR, Gao F, Shen X, Hampton O, Lindsay H, Kosigo M, Qi L, Baxter PA, Su JM, Chintagumpala M, Dauser R, Adesina A, Plon SE, Li XN, Wheeler DA, Lau CC, Pietsch T, Gielen G, Muehlen AZ, Kwiecien R, Wolff J, Kramm C, Lulla RR, Laskowski J, Goldman S, Gopalakrishnan V, Fangusaro J, Mackay A, Taylor K, Vinci M, Jones C, Kieran M, Fontebasso A, Papillon-Cavanagh S, Schwartzentruber J, Nikbakht H, Gerges N, Fiset PO, Bechet D, Faury D, De Jay N, Ramkissoon L, Corcoran A, Jones D, Sturm D, Johann P, Tomita T, Goldman S, Nagib M, Bendel A, Goumnerova L, Bowers DC, Leonard JR, Rubin JB, Alden T, DiPatri A, Browd S, Leary S, Jallo G, Cohen K, Prados MD, Banerjee A, Carret AS, Ellezam B, Crevier L, Klekner A, Bognar L, Hauser P, Garami M, Myseros J, Dong Z, Siegel PM, Gump W, Ayyanar K, Ragheb J, Khatib Z, Krieger M, Kiehna E, Robison N, Harter D, Gardner S, Handler M, Foreman N, Brahma B, MacDonald T, Malkin H, Chi S, Manley P, Bandopadhayay P, Greenspan L, Ligon A, Albrecht S, Pfister SM, Ligon KL, Majewski J, Gupta N, Jabado N, Hoeman C, Cordero F, Halvorson K, Hawkins C, Becher O, Taylor I, Hutt M, Weingart M, Price A, Nazarian J, Eberhart C, Raabe E, Kantar M, Onen S, Kamer S, Turhan T, Kitis O, Ertan Y, Cetingul N, Anacak Y, Akalin T, Ersahin Y, Mason G, Nazarian J, Ho C, Devaney J, Stampar M, Kambhampati M, Crozier F, Vezina G, Packer R, Hwang E, Gilheeney S, Millard N, DeBraganca K, Khakoo Y, Kramer K, Wolden S, Donzelli M, Fischer C, Petriccione M, Dunkel I, Afzal S, Carret AS, Fleming A, Larouche V, Zelcer S, Johnston DL, Kostova M, Mpofu C, Decarie JC, Strother D, Lafay-Cousin L, Eisenstat D, Fryer C, Hukin J, Bartels U, Bouffet E, Hsu M, Lasky J, Moore T, Liau L, Davidson T, Prins R, Fouladi M, Bartels U, Warren K, Hassal T, Baugh J, Kirkendall J, Doughman R, Leach J, Jones B, Miles L, Hawkins C, Bouffet E, Hargrave D, Grill J, Jones C, Jacques T, Savage S, Goldman S, Leary S, Packer R, Saunders D, Wesseling P, Varlet P, van Vuurden D, Wallace R, Flutter B, Morgenestern D, Hargrave D, Blanco E, Howe K, Lowdell M, Samuel E, Michalski A, Anderson J, Arakawa Y, Umeda K, Watanabe KI, Mizowaki T, Hiraoka M, Hiramatsu H, Adachi S, Kunieda T, Takagi Y, Miyamoto S, Venneti S, Santi M, Felicella MM, Sullivan LM, Dolgalev I, Martinez D, Perry A, Lewis PW, Allis DC, Thompson CB, Judkins AR. HIGH GRADE GLIOMAS AND DIPG. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou071] [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: 11/14/2022] Open
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Howe K, Eustace A, Souahli S, Browne B, Aherne S, Barron N, Walsh N, Crown J, O'Donovan N. 143 MicroRNA-224 and −375 in Trastuzumab and Lapatinib Acquired and Innate Resistant HER2 Positive Breast Cancer Cells. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71941-x] [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: 10/27/2022]
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Jagoe WN, Howe K, O'Brien SC, Carroll J. Identification of a role for a mouse sperm surface aldo-keto reductase (AKR1B7) and its human analogue in the detoxification of the reactive aldehyde, acrolein. Andrologia 2012; 45:326-31. [DOI: 10.1111/and.12018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2012] [Indexed: 11/28/2022] Open
Affiliation(s)
- W. N. Jagoe
- School of Biochemistry and Immunology; Trinity College; Dublin University; Dublin; Ireland
| | - K. Howe
- School of Biochemistry and Immunology; Trinity College; Dublin University; Dublin; Ireland
| | - S. C. O'Brien
- School of Biochemistry and Immunology; Trinity College; Dublin University; Dublin; Ireland
| | - J. Carroll
- School of Biochemistry and Immunology; Trinity College; Dublin University; Dublin; Ireland
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Howe K, Eustace A, Souahli S, Browne B, Aherne S, Barron N, Walsh N, Crown J, O'Donovan N. Microrna-9 and -224 In Trastuzumab Resistant HER2 Positive Breast Cancer Cells. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)34197-1] [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: 11/26/2022] Open
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Himoudi N, Wallace R, Parsley KL, Gilmour K, Barrie AU, Howe K, Dong R, Sebire NJ, Michalski A, Thrasher AJ, Anderson J. Lack of T-cell responses following autologous tumour lysate pulsed dendritic cell vaccination, in patients with relapsed osteosarcoma. Clin Transl Oncol 2012; 14:271-9. [PMID: 22484634 DOI: 10.1007/s12094-012-0795-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Immunotherapy using autologous dendritic cell (DC) vaccination has not been systematically evaluated in osteosarcoma. We therefore conducted a phase I trial to assess feasibility, safety and tumour-specific immune responses in patients with relapsed disease. PATIENTS AND METHODS Of 13 recruited patients with relapsed osteosarcoma, 12 received 3 weekly vaccines of autologous DCs matured with autologous tumour lysate and keyhole limpet haemocyanin (KLH), to a maximum of 6 vaccinations. An additional 3 paediatric patients afflicted with other tumour types and with relapsed disease received vaccines generated with identical methodology. Immune responses were assessed using an ELISpot assay for the detection of interferon gamma, whilst interleukin-2 and granzyme B were additionally assessed in cases where interferon-γ responses were induced. RESULTS In total 61 vaccines, of homogeneous maturation phenotype and viability, were administered with no significant toxicity. Only in 2 out of 12 treated osteosarcoma cases was there an induction of specific T-cell immune response to the tumour, whilst a strong but non-specific immune response was induced in 1 further osteosarcoma patient. Immune response against KLH was induced in only 3 out of 12 osteosarcoma patients. In contrast, three additional non-osteosarcoma patients showed significant T-cell responses to vaccine. CONCLUSION We have shown the strategy of DC vaccination in relapsed osteosarcoma is safe and feasible. However, significant anti-tumour responses were induced in only 2 out of 12 vaccinated patients with no evidence of clinical benefit. Comparison of results with identically treated control patients suggests that osteosarcoma patients might be relatively insensitive to DC-based vaccine treatments.
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Affiliation(s)
- N Himoudi
- Unit of Molecular Haematology and Cancer Biology, University College London Institute of Child Health, London, UK
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Nasir AA, Niyonkuru F, Nottidge TE, Adeleye AO, Ali S, Ameh EA, Bekele A, Bonet I, Derbew M, Ekenze SO, Oluwadare E, Jani PG, Labib M, Mezue WC, Mijumbi C, Zimmerman K, Baird R, Carsen S, Dreyer JS, Fairfull Smith RJ, Ferri-de-Barros F, Friedman J, Gill R, Gray A, Howe K, Bhoj I, Poenaru D, Rosen B, Yusuf AS, Abdur-Rahman LO, Ahmed BA, Panikar D, Abraham MK, Petroze RT, Groen RS, Ntaganda E, Kushner AL, Calland JF, Kyamanywa P, Ekrikpo U, Ifesanya AO, Nnabuko RE, Mazhar SB, Kotisso B, Shiferaw S, Ngonzi J, Dorman K, Byrne N, Satterthwaite L, Pittini R, Tajirian T, Kneebone R, Bello F, Desalegn D, Henok F, Dubrowsk A, Ugwumba FO, Obi UM, Ikem IC, Oginni LM, Howard A, Onyiah E, Iloabachie IC, Ohaegbulam SC, Kaggwa S, Tindimwebwa J, Mabweijano J, Lipnick M, Dubowitz G, Goetz L, Jayaraman S, Kwizera A, Ozgediz D, Matagane J, Bishop T, Guerrero A, Ganey M, Poenaru D, Park S, Simon D, Zirkle LG, Feibel RJ, Hannay JAF, Lane RHS, Cameron BH, Rambaran M, Gibson J, Howard A, Costas A, Meara JG, St-Albin M, Dyer G, Devi PR, Henshaw C, Wright J, Leah J, Spitzer RF, Caloia D, Omenge E, Chemwolo B, Zhou G, July J, Totimeh T, Mahmud R, Bernstein M, Ostrow B, Lowe J, Lawton C, Kozody LL, Coutts P, Nesbeth H, Revoredo A, Kirton R, Sibbald G, Dodge J, Giede C, Jimenez W, Cibulska P, Sinesat S, Bernardini M, McAlpine J, Finlayson S, Miller D, Elkanah O, Itsura P, Elit L. Bethune Round Table 2012: 12th Annual Conference: Filling the GapImpact of international collaboration on surgical services in a Nigerian tertiary centreSurgeons OverSeas Assessment of Surgical Needs (SOSAS) Rwanda: a useful rural health experience for medical studentsPreinternship Nigerian medical graduates lack basic musculoskeletal competencyDecompressive craniectomy: a low-cost surgical technique from a developing countryEfficacy of surgical management with manual vacuum aspiration versus medical management with misoprostol for evacuation of Lrst trimester miscarriages: a randomized trial in PakistanGaps in workforce for surgical care of children in Nigeria: increasing capacity through international partnershipsAnalyses of the gap between surgical resident and faculty surgeons concerning operating theatre teaching: report from Addis Ababa University, EthiopiaIntroduction of structured operative obstetric course at Mbarara Regional Referral Hospital with resultant reduction in maternal mortalityA training cascade for Ethiopian surgical and obstetrical care: an interprofessional, educational, leadership and skills training programUndergraduate surgery clerkship and the choice of surgery as a career: perspective from a developing countryIntramedullary nail versus external Lxation in management of open tibia fractures: experience in a developing countryThe College of Surgeons of East, Central and Southern Africa (COSECSA) Llling the gap; increasing the number of surgeonsClinical officer surgical training in Africa: COST-AfricaSecondary neuronal injuries following cervical spine trauma: audit of 68 consecutive patients admitted to neurosurgical services in Enugu, NigeriaCapacity building and workforce expansion in surgery, anesthesia and perioperative care: the GPAS model in UgandaKnowledge retention surveys: identifying the effectiveness of a road safety education program in Dar es Salaam, TanzaniaA tale of 2 fellowships: a comparative analysis of Canadian and East-African pediatric surgical trainingOutcomes of closed diaphyseal femur fractures treated with the SIGN nailManaging surgical emergencies: delivering a new course for the College of Surgeons of East Central and Southern AfricaAn evaluation of the exam for the University of Guyana Diploma in SurgeryPriority setting for health resource allocation in Brazil: a scoping literature reviewForeign aid effects on orthopedic capacity at the Hospital Saint Nicholas, HaitiReTHINK aid: international maternal health collaborationsEffect of electronic medical record implementation on patient and staff satisfaction, and chart completeness in a resource-limited antenatal clinic in KenyaImplementation of awake craniotomy in the developing world: data from China, Indonesia and AfricaRegionalization of diabetes care In Guyana, South AmericaQuantifying the burden of pediatric surgical disease due to delayed access to careImplementation of oncology surgery in Western Kenya. Can J Surg 2012. [DOI: 10.1503/cjs.016812] [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: 11/01/2022] Open
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Malayil L, Turner JW, Mote BL, Howe K, Lipp EK. Evaluation of enrichment media for improved PCR-based detection of V. cholerae and V. vulnificus from estuarine water and plankton. J Appl Microbiol 2011; 110:1470-5. [PMID: 21395948 DOI: 10.1111/j.1365-2672.2011.04996.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS Pathogenic Vibrio spp., including V. cholerae and V. vulnificus, are commonly found along the estuaries of the south-east United States; however, it is often difficult to recover these species directly from environmental samples. Pre-enrichment assays are commonly used to improve the detection of pathogenic vibrios from environmental sources. Here, we evaluated a novel enrichment procedure using freshly collected and autoclaved natural estuarine water amended with 1% peptone (designated as estuarine peptone water, EPW) and compared it to traditional alkaline peptone water (APW) for detection by PCR of V. cholerae and V. vulnificus. METHODS AND RESULTS Of the 50 samples collected in total, V. cholerae DNA was detected in APW 10% of the time and in EPW 40% of the time. Likewise, the cholera toxin gene (ctxA) was detected in 4 vs 18% of the samples using APW and EPW, respectively. Conversely, APW showed improved recovery for V. vulnificus relative to EPW with respective detection frequencies of 46 and 20%. Results showed similar patterns across different sample types (water and plankton). CONCLUSIONS While enrichment in traditional APW was adequate for the recovery of Vibrio vulnificius, use of sterile estuarine water amended with peptone significantly improved the detection of V. cholerae and the virulence gene ctxA from estuarine sources.
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Affiliation(s)
- L Malayil
- Department of Environmental Health Science, The University of Georgia, Athens, GA 30602, USA
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Cilia M, Tamborindeguy C, Rolland M, Howe K, Thannhauser TW, Gray S. Tangible benefits of the aphid Acyrthosiphon pisum genome sequencing for aphid proteomics: Enhancements in protein identification and data validation for homology-based proteomics. J Insect Physiol 2011; 57:179-190. [PMID: 21070785 DOI: 10.1016/j.jinsphys.2010.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Revised: 10/28/2010] [Accepted: 11/01/2010] [Indexed: 05/30/2023]
Abstract
Homology-driven proteomics promises to reveal functional biology in insects with sparse genome sequence information. A proteomics study comparing plant virus transmission competent and refractive genotypes of the aphid Schizaphis graminum isolated numerous candidate proteins involved in virus transmission, but limited genome sequence information hampered their identification. The complete genome of the pea aphid, Acyrthosiphon pisum, released in 2008, enabled us to double the number of protein identifications beyond what was possible using available EST libraries and other insect sequences. This was concomitant with a dramatic increase of the number of MS and MS/MS peptide spectra matching the genome-derived protein sequence. LC-MS/MS proved to be the most robust method of peptide detection. Cross-matching spectral data to multiple EST sequences and error tolerant searching to identify amino acid substitutions enhanced the percent coverage of the Schizaphis graminum proteins. 2-D electrophoresis provided the protein pI and MW which enabled the refinement of the candidate protein selection and provided a measure of protein abundance when coupled to the spectral data. Thus, the homology-based proteomics pipeline for insects should include efforts to maximize the number of peptide matches to the protein to increase certainty in protein identification and relative protein abundance.
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Affiliation(s)
- M Cilia
- Robert W. Holley Center for Agriculture and Health, Cornell University, Tower Road, Ithaca, NY 14853, USA
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Elaimi AH, Sabhnani TV, Sultan H, Alduraihem A, Fitzharris G, Howe K, Harper J, Garcia F, Alvarez JG, Velilla E, Fernandez S, Serra O, Lopez-Teijon M, Figueira RCS, Braga DPAF, Queiroz P, Pasqualotto FF, Iaconelli A, Borges E, Vanneste E, Voet T, Melotte C, Vandendael T, Declercq M, Vervoort C, Debrock S, Fryns JP, D'Hooghe T, Vermeesch JR, Choi Y, Park M, Song SH, Won HJ, Kim YS, Ryu SW, Lee DR, Shim SH, Yoon TK. Session 19: Reproduction and Genetics. Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.19] [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: 11/14/2022] Open
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Hubbard TJP, Aken BL, Ayling S, Ballester B, Beal K, Bragin E, Brent S, Chen Y, Clapham P, Clarke L, Coates G, Fairley S, Fitzgerald S, Fernandez-Banet J, Gordon L, Graf S, Haider S, Hammond M, Holland R, Howe K, Jenkinson A, Johnson N, Kahari A, Keefe D, Keenan S, Kinsella R, Kokocinski F, Kulesha E, Lawson D, Longden I, Megy K, Meidl P, Overduin B, Parker A, Pritchard B, Rios D, Schuster M, Slater G, Smedley D, Spooner W, Spudich G, Trevanion S, Vilella A, Vogel J, White S, Wilder S, Zadissa A, Birney E, Cunningham F, Curwen V, Durbin R, Fernandez-Suarez XM, Herrero J, Kasprzyk A, Proctor G, Smith J, Searle S, Flicek P. Ensembl 2009. Nucleic Acids Res 2008; 37:D690-7. [PMID: 19033362 PMCID: PMC2686571 DOI: 10.1093/nar/gkn828] [Citation(s) in RCA: 683] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The Ensembl project (http://www.ensembl.org) is a comprehensive genome information system featuring an integrated set of genome annotation, databases, and other information for chordate, selected model organism and disease vector genomes. As of release 51 (November 2008), Ensembl fully supports 45 species, and three additional species have preliminary support. New species in the past year include orangutan and six additional low coverage mammalian genomes. Major additions and improvements to Ensembl since our previous report include a major redesign of our website; generation of multiple genome alignments and ancestral sequences using the new Enredo-Pecan-Ortheus pipeline and development of our software infrastructure, particularly to support the Ensembl Genomes project (http://www.ensemblgenomes.org/).
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Affiliation(s)
- T J P Hubbard
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK.
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Abstract
The Vertebrate Genome Annotation (Vega) database (http://vega.sanger.ac.uk) was first made public in 2004 and has been designed to view manual annotation of human, mouse and zebrafish genomic sequences produced at the Wellcome Trust Sanger Institute. Since its initial release, the number of human annotated loci has more than doubled to close to 33 000 and now contains comprehensive annotation on 20 of the 24 human chromosomes, four whole mouse chromosomes and around 40% of the zebrafish Danio rerio genome. In addition, we offer manual annotation of a number of haplotype regions in mouse and human and regions of comparative interest in pig and dog that are unique to Vega.
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Affiliation(s)
- L G Wilming
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire, CB10 1SA, UK.
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24
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Flicek P, Aken BL, Beal K, Ballester B, Caccamo M, Chen Y, Clarke L, Coates G, Cunningham F, Cutts T, Down T, Dyer SC, Eyre T, Fitzgerald S, Fernandez-Banet J, Gräf S, Haider S, Hammond M, Holland R, Howe KL, Howe K, Johnson N, Jenkinson A, Kähäri A, Keefe D, Kokocinski F, Kulesha E, Lawson D, Longden I, Megy K, Meidl P, Overduin B, Parker A, Pritchard B, Prlic A, Rice S, Rios D, Schuster M, Sealy I, Slater G, Smedley D, Spudich G, Trevanion S, Vilella AJ, Vogel J, White S, Wood M, Birney E, Cox T, Curwen V, Durbin R, Fernandez-Suarez XM, Herrero J, Hubbard TJP, Kasprzyk A, Proctor G, Smith J, Ureta-Vidal A, Searle S. Ensembl 2008. Nucleic Acids Res 2007; 36:D707-14. [PMID: 18000006 PMCID: PMC2238821 DOI: 10.1093/nar/gkm988] [Citation(s) in RCA: 370] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The Ensembl project (http://www.ensembl.org) is a comprehensive genome information system featuring an integrated set of genome annotation, databases and other information for chordate and selected model organism and disease vector genomes. As of release 47 (October 2007), Ensembl fully supports 35 species, with preliminary support for six additional species. New species in the past year include platypus and horse. Major additions and improvements to Ensembl since our previous report include extensive support for functional genomics data in the form of a specialized functional genomics database, genome-wide maps of protein–DNA interactions and the Ensembl regulatory build; support for customization of the Ensembl web interface through the addition of user accounts and user groups; and increased support for genome resequencing. We have also introduced new comparative genomics-based data mining options and report on the continued development of our software infrastructure.
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Affiliation(s)
- P Flicek
- European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK.
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25
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Howe K, Wilcken M. Hypoplastisches Linksherzsyndrom- Ist eine standardisierte Pflege notwendig? Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-983167] [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: 10/21/2022]
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26
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Hubbard TJP, Aken BL, Beal K, Ballester B, Caccamo M, Chen Y, Clarke L, Coates G, Cunningham F, Cutts T, Down T, Dyer SC, Fitzgerald S, Fernandez-Banet J, Graf S, Haider S, Hammond M, Herrero J, Holland R, Howe K, Howe K, Johnson N, Kahari A, Keefe D, Kokocinski F, Kulesha E, Lawson D, Longden I, Melsopp C, Megy K, Meidl P, Ouverdin B, Parker A, Prlic A, Rice S, Rios D, Schuster M, Sealy I, Severin J, Slater G, Smedley D, Spudich G, Trevanion S, Vilella A, Vogel J, White S, Wood M, Cox T, Curwen V, Durbin R, Fernandez-Suarez XM, Flicek P, Kasprzyk A, Proctor G, Searle S, Smith J, Ureta-Vidal A, Birney E. Ensembl 2007. Nucleic Acids Res 2006; 35:D610-7. [PMID: 17148474 PMCID: PMC1761443 DOI: 10.1093/nar/gkl996] [Citation(s) in RCA: 657] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The Ensembl (http://www.ensembl.org/) project provides a comprehensive and integrated source of annotation of chordate genome sequences. Over the past year the number of genomes available from Ensembl has increased from 15 to 33, with the addition of sites for the mammalian genomes of elephant, rabbit, armadillo, tenrec, platypus, pig, cat, bush baby, common shrew, microbat and european hedgehog; the fish genomes of stickleback and medaka and the second example of the genomes of the sea squirt (Ciona savignyi) and the mosquito (Aedes aegypti). Some of the major features added during the year include the first complete gene sets for genomes with low-sequence coverage, the introduction of new strain variation data and the introduction of new orthology/paralog annotations based on gene trees.
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Affiliation(s)
- T J P Hubbard
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SA, UK.
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27
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Renard C, Hart E, Sehra H, Beasley H, Coggill P, Howe K, Harrow J, Gilbert J, Sims S, Rogers J, Ando A, Shigenari A, Shiina T, Inoko H, Chardon P, Beck S. The genomic sequence and analysis of the swine major histocompatibility complex. Genomics 2006; 88:96-110. [PMID: 16515853 DOI: 10.1016/j.ygeno.2006.01.004] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2005] [Revised: 01/18/2006] [Accepted: 01/18/2006] [Indexed: 10/25/2022]
Abstract
We describe the generation and analysis of an integrated sequence map of a 2.4-Mb region of pig chromosome 7, comprising the classical class I region, the extended and classical class II regions, and the class III region of the major histocompatibility complex (MHC), also known as swine leukocyte antigen (SLA) complex. We have identified and manually annotated 151 loci, of which 121 are known genes (predicted to be functional), 18 are pseudogenes, 8 are novel CDS loci, 3 are novel transcripts, and 1 is a putative gene. Nearly all of these loci have homologues in other mammalian genomes but orthologues could be identified with confidence for only 123 genes. The 28 genes (including all the SLA class I genes) for which unambiguous orthology to genes within the human reference MHC could not be established are of particular interest with respect to porcine-specific MHC function and evolution. We have compared the porcine MHC to other mammalian MHC regions and identified the differences between them. In comparison to the human MHC, the main differences include the absence of HLA-A and other class I-like loci, the absence of HLA-DP-like loci, and the separation of the extended and classical class II regions from the rest of the MHC by insertion of the centromere. We show that the centromere insertion has occurred within a cluster of BTNL genes located at the boundary of the class II and III regions, which might have resulted in the loss of an orthologue to human C6orf10 from this region.
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Affiliation(s)
- C Renard
- LREG INRA CEA, Jouy en Josas, France
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28
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Birney E, Andrews D, Caccamo M, Chen Y, Clarke L, Coates G, Cox T, Cunningham F, Curwen V, Cutts T, Down T, Durbin R, Fernandez-Suarez XM, Flicek P, Gräf S, Hammond M, Herrero J, Howe K, Iyer V, Jekosch K, Kähäri A, Kasprzyk A, Keefe D, Kokocinski F, Kulesha E, London D, Longden I, Melsopp C, Meidl P, Overduin B, Parker A, Proctor G, Prlic A, Rae M, Rios D, Redmond S, Schuster M, Sealy I, Searle S, Severin J, Slater G, Smedley D, Smith J, Stabenau A, Stalker J, Trevanion S, Ureta-Vidal A, Vogel J, White S, Woodwark C, Hubbard TJP. Ensembl 2006. Nucleic Acids Res 2006; 34:D556-61. [PMID: 16381931 PMCID: PMC1347495 DOI: 10.1093/nar/gkj133] [Citation(s) in RCA: 323] [Impact Index Per Article: 17.9] [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] [Indexed: 11/24/2022] Open
Abstract
The Ensembl () project provides a comprehensive and integrated source of annotation of large genome sequences. Over the last year the number of genomes available from the Ensembl site has increased from 4 to 19, with the addition of the mammalian genomes of Rhesus macaque and Opossum, the chordate genome of Ciona intestinalis and the import and integration of the yeast genome. The year has also seen extensive improvements to both data analysis and presentation, with the introduction of a redesigned website, the addition of RNA gene and regulatory annotation and substantial improvements to the integration of human genome variation data.
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Affiliation(s)
- E Birney
- European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SA, UK.
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29
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Chisholm J, Howe K, Taj M, Zambon M. Influenza immunisation in children with solid tumours. Eur J Cancer 2005; 41:2280-7. [PMID: 16143516 DOI: 10.1016/j.ejca.2005.07.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2004] [Revised: 06/02/2005] [Accepted: 07/05/2005] [Indexed: 10/25/2022]
Abstract
We assessed response to immunisation with trivalent split virus influenza vaccine in children with non-leukaemic malignant disease. Children with solid tumours and lymphoma received one or two doses of influenza vaccine, according to current UK guidelines, in autumn 2001 and/or 2002. Children were currently receiving chemotherapy or were within 6 months of completing chemotherapy. Pre and post vaccination sera were assessed for antibodies to the prevalent influenza strains by haemagglutination inhibition (HI). Sixty six children were assessed prior to 69 episodes of vaccination. In 30% episodes, children were susceptible to all three circulating influenza viruses (65% to H1N1, 42% to H3N2 and 90% to B) and only one patient showed protective titres (HI32) against all three strains. Seroresponse rates (4-fold rise in HI) for H1N1, H3N2 and B were 52%, 33% and 51% in 65 episodes. Following immunisation protective titres to all three viruses were seen in 25 episodes (38%) and protective responses to one or two viruses were seen in a further 12 (19%) episodes. There was no significant difference in response rates among children on treatment and off treatment and by intensity of chemotherapy. Children with solid tumours and lymphoma are highly susceptible to influenza infection. Influenza vaccine was well tolerated in this patient group and children showed a significant response to immunisation. These findings support the recommendation for annual influenza vaccination in these children.
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Affiliation(s)
- J Chisholm
- Department of Paediatric Oncology, Great Ormond Street Hospital, Great Ormond Street, London WC1N 3JH, UK.
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30
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Hubbard T, Andrews D, Caccamo M, Cameron G, Chen Y, Clamp M, Clarke L, Coates G, Cox T, Cunningham F, Curwen V, Cutts T, Down T, Durbin R, Fernandez-Suarez XM, Gilbert J, Hammond M, Herrero J, Hotz H, Howe K, Iyer V, Jekosch K, Kahari A, Kasprzyk A, Keefe D, Keenan S, Kokocinsci F, London D, Longden I, McVicker G, Melsopp C, Meidl P, Potter S, Proctor G, Rae M, Rios D, Schuster M, Searle S, Severin J, Slater G, Smedley D, Smith J, Spooner W, Stabenau A, Stalker J, Storey R, Trevanion S, Ureta-Vidal A, Vogel J, White S, Woodwark C, Birney E. Ensembl 2005. Nucleic Acids Res 2005; 33:D447-53. [PMID: 15608235 PMCID: PMC540092 DOI: 10.1093/nar/gki138] [Citation(s) in RCA: 354] [Impact Index Per Article: 18.6] [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: 10/06/2004] [Revised: 11/01/2004] [Accepted: 11/01/2004] [Indexed: 11/17/2022] Open
Abstract
The Ensembl (http://www.ensembl.org/) project provides a comprehensive and integrated source of annotation of large genome sequences. Over the last year the number of genomes available from the Ensembl site has increased by 7 to 16, with the addition of the six vertebrate genomes of chimpanzee, dog, cow, chicken, tetraodon and frog and the insect genome of honeybee. The majority have been annotated automatically using the Ensembl gene build system, showing its flexibility to reliably annotate a wide variety of genomes. With the increased number of vertebrate genomes, the comparative analysis provided to users has been greatly improved, with new website interfaces allowing annotation of different genomes to be directly compared. The Ensembl software system is being increasingly widely reused in different projects showing the benefits of a completely open approach to software development and distribution.
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Affiliation(s)
- T Hubbard
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SA, UK
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31
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Deloukas P, Earthrowl ME, Grafham DV, Rubenfield M, French L, Steward CA, Sims SK, Jones MC, Searle S, Scott C, Howe K, Hunt SE, Andrews TD, Gilbert JGR, Swarbreck D, Ashurst JL, Taylor A, Battles J, Bird CP, Ainscough R, Almeida JP, Ashwell RIS, Ambrose KD, Babbage AK, Bagguley CL, Bailey J, Banerjee R, Bates K, Beasley H, Bray-Allen S, Brown AJ, Brown JY, Burford DC, Burrill W, Burton J, Cahill P, Camire D, Carter NP, Chapman JC, Clark SY, Clarke G, Clee CM, Clegg S, Corby N, Coulson A, Dhami P, Dutta I, Dunn M, Faulkner L, Frankish A, Frankland JA, Garner P, Garnett J, Gribble S, Griffiths C, Grocock R, Gustafson E, Hammond S, Harley JL, Hart E, Heath PD, Ho TP, Hopkins B, Horne J, Howden PJ, Huckle E, Hynds C, Johnson C, Johnson D, Kana A, Kay M, Kimberley AM, Kershaw JK, Kokkinaki M, Laird GK, Lawlor S, Lee HM, Leongamornlert DA, Laird G, Lloyd C, Lloyd DM, Loveland J, Lovell J, McLaren S, McLay KE, McMurray A, Mashreghi-Mohammadi M, Matthews L, Milne S, Nickerson T, Nguyen M, Overton-Larty E, Palmer SA, Pearce AV, Peck AI, Pelan S, Phillimore B, Porter K, Rice CM, Rogosin A, Ross MT, Sarafidou T, Sehra HK, Shownkeen R, Skuce CD, Smith M, Standring L, Sycamore N, Tester J, Thorpe A, Torcasso W, Tracey A, Tromans A, Tsolas J, Wall M, Walsh J, Wang H, Weinstock K, West AP, Willey DL, Whitehead SL, Wilming L, Wray PW, Young L, Chen Y, Lovering RC, Moschonas NK, Siebert R, Fechtel K, Bentley D, Durbin R, Hubbard T, Doucette-Stamm L, Beck S, Smith DR, Rogers J. The DNA sequence and comparative analysis of human chromosome 10. Nature 2004; 429:375-81. [PMID: 15164054 DOI: 10.1038/nature02462] [Citation(s) in RCA: 62] [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] [Received: 12/17/2003] [Accepted: 03/09/2004] [Indexed: 11/08/2022]
Abstract
The finished sequence of human chromosome 10 comprises a total of 131,666,441 base pairs. It represents 99.4% of the euchromatic DNA and includes one megabase of heterochromatic sequence within the pericentromeric region of the short and long arm of the chromosome. Sequence annotation revealed 1,357 genes, of which 816 are protein coding, and 430 are pseudogenes. We observed widespread occurrence of overlapping coding genes (either strand) and identified 67 antisense transcripts. Our analysis suggests that both inter- and intrachromosomal segmental duplications have impacted on the gene count on chromosome 10. Multispecies comparative analysis indicated that we can readily annotate the protein-coding genes with current resources. We estimate that over 95% of all coding exons were identified in this study. Assessment of single base changes between the human chromosome 10 and chimpanzee sequence revealed nonsense mutations in only 21 coding genes with respect to the human sequence.
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Affiliation(s)
- P Deloukas
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton CB10 1SA, UK.
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32
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Nazli A, Yang PC, Jury J, Howe K, Watson JL, Söderholm JD, Sherman PM, Perdue MH, McKay DM. Epithelia under metabolic stress perceive commensal bacteria as a threat. Am J Pathol 2004; 164:947-57. [PMID: 14982848 PMCID: PMC1614709 DOI: 10.1016/s0002-9440(10)63182-3] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/19/2003] [Indexed: 12/12/2022]
Abstract
The normal gut flora has been implicated in the pathophysiology of inflammatory bowel disease and there is increased interest in the role that stress can play in gut disease. The chemical stressor dinitrophenol (DNP, uncouples oxidative phosphorylation) was injected into the ileum of laparotomized rats and mitochondria structure, epithelial permeability, and inflammatory cell infiltrate were examined 6 and 24 hours later. Monolayers of human colonic epithelial cells (T84, HT-29) were treated with DNP +/- commensal Escherichia coli, followed by assessment of epithelial permeability, bacterial translocation, and chemokine (ie, interleukin-8) synthesis. Delivery of DNP into rat distal ileum resulted in disruption of epithelial mitochondria; similar changes were noted in mildly inflamed ileal resections from patients with Crohn's disease. Also, DNP-treated ileum displayed increased gut permeability and immune cell recruitment. Subsequent studies revealed deceased barrier function, increased bacterial translocation, increased production of interleukin-8, and enhanced mobilization of the transcription factor AP-1 in the model epithelial cell lines exposed to commensal bacteria (E. coli strains HB101 or C25), but only when the monolayers were pretreated with DNP (0.1 mmol/L). These data suggest that enteric epithelia under metabolic stress perceive a normally innocuous bacterium as threatening, resulting in loss of barrier function, increased penetration of bacteria into the mucosa, and increased chemokine synthesis. Such responses could precipitate an inflammatory episode and contribute to existing enteric inflammatory disorders.
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Affiliation(s)
- Aisha Nazli
- Intestinal Disease Research Programme, McMaster University, Hamilton, Ontario, Canada
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33
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Howe K, Gauldie J, McKay DM. TGF-beta effects on epithelial ion transport and barrier: reduced Cl- secretion blocked by a p38 MAPK inhibitor. Am J Physiol Cell Physiol 2002; 283:C1667-74. [PMID: 12388073 DOI: 10.1152/ajpcell.00414.2001] [Citation(s) in RCA: 29] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Growth factors affect a variety of epithelial functions. We examined the ability of TGF-beta to modulate epithelial ion transport and permeability. Filter-grown monolayers of human colonic epithelia, T84 and HT-29 cells, were treated with TGF-beta (0.1-100 ng/ml, 15 min-72 h) or infected with an adenoviral vector encoding TGF-beta (Ad-TGF beta) for 144 h. Ion transport (i.e., short-circuit current, I(sc)) and transepithelial resistance (TER) were assessed in Ussing chambers. Neither recombinant TGF-beta nor Ad-TGF beta infection affected baseline I(sc); however, exposure to > or = 1 ng/ml TGF-beta led to a significant (30-50%) reduction in the I(sc) responses to forskolin, vasoactive intestinal peptide, and cholera toxin (agents that evoke Cl(-) secretion via cAMP mobilization) and to the cell-permeant dibutyryl cAMP. Pharmacological analysis of signaling pathways revealed that the inhibition of cAMP-driven epithelial Cl(-) secretion by TGF-beta was blocked by pretreatment with SB-203580, a specific inhibitor of p38 MAPK, but not by inhibitors of JNK, ERK1/2 MAPK, or phosphatidylinositol 3'-kinase. TGF-beta enhanced the barrier function of the treated monolayers by up to threefold as assessed by TER; however, this event was temporally displaced from the altered I(sc) response, being statistically significant only at 72 h posttreatment. Thus, in addition to TGF-beta promotion of epithelial barrier function, we show that this growth factor also reduces responsiveness to cAMP-dependent secretagogues in a chronic manner and speculate that this serves as a braking mechanism to limit secretory enteropathies.
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Affiliation(s)
- Kathryn Howe
- Intestinal Disease Research Program, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada L8N 3Z5
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Abstract
The surgical management of epithelial ovarian cancer in the South West of England was studied in the two years 1997-1998 in order to determine the factors that influence the outcome of surgery and to provide a baseline from which to assess the effect of centralisation of cancer services. All hospitals in the South West region of England participating in the Regional Cancer Organisation's longitudinal study of outcomes in gynaecological malignancies are included. Six hundred and eighty-two patients with epithelial ovarian cancer were registered with the RCO in the two-year study period. Five hundred and ninety-five women were offered primary cytoreductive surgery of which 438 were said to be optimally cytoreduced. Applying multivariate models to analyse the outcome of surgery, older patients (OR = 0.82 per 5-year increase in age, P = 0.0003), patients treated in hospitals managing fewer than ten cases of ovarian cancer per year (OR = 1.92, P = 0.02) and patients with FIGO stage 3 (OR = 0.02, P < 0.0001) or 4 (OR = 0.002, P < 0.0001) disease were less likely to be optimally cytoreduced. Gynaecological oncologists were 2.06 times more likely to attain optimal cytoreduction when compared to general gynaecologists and this was statistically significant (P = 0.01). The results from this study support the argument that limiting surgery for ovarian malignancy to specialised surgeons improves the extent of cytoreductive surgery.
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Affiliation(s)
- A Olaitan
- Department of Gynaecological Oncology, St Michael's Hospital, Southwell Street, Bristol, BS2 8EG, UK
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35
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McCrum A, Howe K, Weeks J, Kirkpatrick A, Murdoch J. A prospective regional audit of surgical management of endometrial cancer in the South and West of England. J OBSTET GYNAECOL 2001; 21:605-9. [PMID: 12521780 DOI: 10.1080/01443610120085582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The results of a prospective audit of surgical management of endometrial cancer in the South and West of England is presented. A minimum data set was defined and information collected prospectively. There was limited tertiary referral to a gynaecological oncologist. The role of centralisation of endometrial cancer care has been questioned, as surgery has traditionally been simple in patients perceived to be at increased risk of more radical surgery. However, this audit demonstrates that standards of even this simple care within the region are often inadequate, with only one-third of patients having basic staging procedures performed fully. This has important implications for patients management, future interpretation of outcome data and clinical governance in endometrial cancer care.
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Affiliation(s)
- A McCrum
- St Michael's Hospital, Bristol, UK
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Grimwade D, Biondi A, Mozziconacci MJ, Hagemeijer A, Berger R, Neat M, Howe K, Dastugue N, Jansen J, Radford-Weiss I, Lo Coco F, Lessard M, Hernandez JM, Delabesse E, Head D, Liso V, Sainty D, Flandrin G, Solomon E, Birg F, Lafage-Pochitaloff M. Characterization of acute promyelocytic leukemia cases lacking the classic t(15;17): results of the European Working Party. Groupe Français de Cytogénétique Hématologique, Groupe de Français d'Hematologie Cellulaire, UK Cancer Cytogenetics Group and BIOMED 1 European Community-Concerted Action "Molecular Cytogenetic Diagnosis in Haematological Malignancies". Blood 2000; 96:1297-308. [PMID: 10942371] [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: 02/17/2023] Open
Abstract
Acute promyelocytic leukemia (APL) is typified by the t(15;17), generating the PML-RAR alpha fusion and predicting a beneficial response to retinoids. However, a sizeable minority of APL cases lack the classic t(15;17), prompting the establishment of the European Working Party to further characterize this group. Such cases were referred to a workshop held in Monza, Italy and subjected to morphologic, cytogenetic, and molecular review, yielding 60 evaluable patients. In the majority (42 of 60), molecular analyses revealed underlying PML/RAR alpha rearrangements due to insertions (28 of 42) or more complex mechanisms, including 3-way and simple variant translocations (14 of 42). Metaphase fluorescence in situ hybridization (FISH) demonstrated that insertions most commonly led to formation of the PML-RAR alpha fusion gene on 15q. In 11 of 60 workshop patients, PLZF/RAR alpha rearrangements were identified, including 2 patients lacking the t(11;17)(q23;q21). In one case with a normal karyotype, FISH analysis revealed insertion of RAR alpha into 11q23, and PLZF-RAR alpha was the sole fusion gene formed. Two patients were found to have t(5;17), one with a diffuse nuclear NPM staining pattern and with NPM-RAR alpha and RAR alpha-NPM transcripts detected. In the other with an unbalanced der(5)t(5;17)(q13;q21) and a nucleolar NPM localization pattern, an NPM/RAR alpha rearrangement was excluded, and FISH revealed deletion of one RAR alpha allele. In the remaining 5 workshop patients, no evidence was found for a rearrangement of RAR alpha, indicating that in rare instances, alternative mechanisms could mediate the differentiation block that typifies this disease. This study highlights the importance of combining morphologic, cytogenetic, and molecular analyses for optimal management of APL patients and better understanding of the pathogenesis of the disease. (Blood. 2000;96:1297-1308)
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Chromosomes, Human, Pair 15
- Chromosomes, Human, Pair 17
- Female
- Gene Rearrangement
- Genetic Markers
- Humans
- Karyotyping
- Leukemia, Promyelocytic, Acute/diagnosis
- Leukemia, Promyelocytic, Acute/genetics
- Male
- Middle Aged
- Neoplasm Proteins/genetics
- Oncogene Proteins, Fusion/genetics
- Translocation, Genetic
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Affiliation(s)
- D Grimwade
- Division of Medical and Molecular Genetics, Guy's, King's, and St. Thomas' School of Medicine, London, United Kingdom
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37
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Diaz-Granados N, Howe K, Lu J, McKay DM. Dextran sulfate sodium-induced colonic histopathology, but not altered epithelial ion transport, is reduced by inhibition of phosphodiesterase activity. Am J Pathol 2000; 156:2169-77. [PMID: 10854237 PMCID: PMC1850075 DOI: 10.1016/s0002-9440(10)65087-0] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inhibition of phosphodiesterase (PDE) activity is beneficial in models of arthritis and airway inflammation. Here we assessed the ability of PDE inhibitors to modulate colitis by exposing mice to 4% (w/v) dextran sulfate sodium (DSS) drinking water for 5 days with or without rolipram, an inhibitor of PDE type 4, or the nonselective PDE inhibitor, pentoxifylline (both at 5 mg/kg, i.p., twice daily). Controls received saline, vehicle, or drug only. Colonic histology, myeloperoxidase (MPO) and tumor necrosis factor-alpha (TNF-alpha) levels, and epithelial ion transport (baseline and stimulated by electrical nerve stimulation, carbachol, and forskolin) were examined. DSS-treated mice displayed a variable diarrhea, significant histopathology in the mid-distal colon, elevated MPO activity, and reduced (>50%) responses to all three pro-secretory stimuli. Treatment with rolipram, and to a lesser extent pentoxifylline, significantly reduced the severity of the colonic histopathology and MPO levels. Neither PDE inhibitor had any affect on the diminished ion transport events caused by DSS-induced colitis. However, although stimulated ion transport events were still reduced 3 days after DSS treatment, colonic segments from DSS + rolipram-treated mice displayed enhanced recovery in their secretory responsiveness, particularly to carbachol. These findings indicate that specific PDE4 inhibition can significantly reduce the tissue damage that accompanies colitis and enhance recovery of normal colonic function.
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Affiliation(s)
- N Diaz-Granados
- Intestinal Disease Research Programme, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
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38
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Fisher C, Vehec A, Kashlan B, Longa G, Houpt L, Howe K, Stark L, Cavanaugh D. Incidental detection of a malignant hurthle cell carcinoma by Tc-99m sestamibi cardiac imaging. Clin Nucl Med 2000; 25:469-70. [PMID: 10836698 DOI: 10.1097/00003072-200006000-00016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A 60-year-old man reported chest pain and shortness of breath. His medical history was negative for myocardial infarction but positive for "mini strokes" and type 2 diabetes mellitus. Tc-99m sestamibi cardiac imaging revealed an abnormal focus of increased activity in the left lobe of the thyroid. Although no cardiac abnormalities were found, a I-123 thyroid scan subsequently showed a solitary hypofunctioning nodule involving the middle and inferior aspects of the left lobe of the thyroid, which fine-needle aspiration proved was a Hurthle cell carcinoma.
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Affiliation(s)
- C Fisher
- Department of Nuclear Medicine, Terre Haute Center for Medical Education of the Indiana University School of Medicine, Indiana, USA
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Fisher C, Vehec A, Kashlan B, Longa G, Houpt L, Howe K, Stark L, Cavanaugh D. Incidental detection of skeletal uptake on sestamibi cardiac images in a patient with previously undiagnosed multiple myeloma. Clin Nucl Med 2000; 25:213-4. [PMID: 10698423 DOI: 10.1097/00003072-200003000-00015] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- C Fisher
- Terre Haute Center for Medical Education of the Indiana University School of Medicine, USA
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40
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Murdoch JB, Weeks JF, Howe K, Smith J, Kirkpatrick A, McCrum A. The surgical management of cervical carcinoma within the South West of England: progress through an audit loop. Gynaecology Tumour Panel. BJOG 2000; 107:308-15. [PMID: 10740324 DOI: 10.1111/j.1471-0528.2000.tb13223.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/30/2022]
Abstract
OBJECTIVE To define and use a minimum clinical dataset for prospective data collection in order to audit the surgical management of cervical cancer in the South West of England. To compare this data set with a retrospective audit allowing assessment of the quality of care offered to patients. DESIGN Prospective collection of a defined dataset on paper forms which were put into a computerised database for analysis. Registrations validated against histopathology databases and hospital coding. SETTING All 13 hospitals in the South West of England which participated in the retrospective audit. PARTICIPANTS One hundred and sixty-five women with cervical cancer diagnosed in 1997. MAIN OUTCOME MEASURES Distribution of cases by hospital and surgeon; workload of individual surgeons; adequacy and accuracy of FIGO staging; adequacy of histological information; and adequacy of surgery. RESULTS There is a trend to centralisation of cancer care and radical surgery in the region. Prospective collection of data has dramatically improved FIGO staging with 92% of all cases staged. For cases greater than Stage Ia, 98% were staged suggesting that a target of 100% staging is feasible. The histological dimensions of tumours were not measured in a high proportion of cases (20% of tumour diameters and 28% of tumour thicknesses). Apparent inadequacies in surgical management are explored. In 10/165 cases (6%) inappropriate conservative surgery may have been unavoidable, suggesting that a quality standard of 95% for appropriate radical surgical management of cervical cancer can be achieved. An anatomically complete removal of pelvic node-bearing tissue, yielding greater than 10 nodes in more than 95% cases, should be achievable with each surgeon/pathologist achieving a mean of more than 20 nodes. CONCLUSION Regional audit of cervical cancer management is feasible. It can be used to improve the quality of information on management and guide improved service provision.
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Affiliation(s)
- J B Murdoch
- South and West Regional Cancer Organisation, Bristol
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41
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Slater S, Carter M, Howe K, Amess J, Rohatiner AZ, Lister TA. Acute promyelocytic leukaemia: a retrospective analysis of patients treated at St. Bartholomew's Hospital 1969-1995. Ann Hematol 1999; 78:131-7. [PMID: 10211755 DOI: 10.1007/s002770050489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 10/28/2022]
Abstract
Seventy-two patients with acute promyelocytic leukemia (APML) were treated at St.Bartholomew's Hospital (SBH) over a 25-year period. Improvements in supportive care and the use of more intensive chemotherapy have led to an increase in the complete remission rate from 14 to 58%. Similarly, the median survival has increased from 3 weeks to 2 years; the median duration of remission, which was 7 months in 1974, has not yet been reached. There was also a significant difference in survival from first recurrence, compared with that of patients with other subtypes of acute myeloid leukemia. RT-PCR analysis on bone marrow samples from 14 patients confirmed the presence of the PML/RARA fusion; 13 of the 14 patients achieved 'molecular remission' after therapy. The one patient who remained persistently positive experienced recurrence within 4 months. In seven of the eight patients in whom the disease recurred, the translocation was identified by RT-PCR at the time of relapse, whilst in one patient it was noted 4 months prior to morphological recurrence. These results illustrate the improvement in prognosis that occurred over a 25-year period in patients with APML treated at a single centre.
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Affiliation(s)
- S Slater
- ICRF Department of Medical Oncology, St. Bartholomew's Hospital, London, Great Britain
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42
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Duprez E, Saurin AJ, Desterro JM, Lallemand-Breitenbach V, Howe K, Boddy MN, Solomon E, de Thé H, Hay RT, Freemont PS. SUMO-1 modification of the acute promyelocytic leukaemia protein PML: implications for nuclear localisation. J Cell Sci 1999; 112 ( Pt 3):381-93. [PMID: 9885291 DOI: 10.1242/jcs.112.3.381] [Citation(s) in RCA: 224] [Impact Index Per Article: 9.0] [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: 11/20/2022] Open
Abstract
PML is a nuclear phosphoprotein that was first identified as part of a translocated chromosomal fusion product associated with acute promyelocytic leukaemia (APL). PML localises to distinct nuclear multi-protein complexes termed ND10, Kr bodies, PML nuclear bodies and PML oncogenic domains (PODs), which are disrupted in APL and are the targets for immediate early viral proteins, although little is known about their function. In a yeast two-hybrid screen, we first identified a ubiquitin-like protein named PIC1 (now known as SUMO-1), which interacts and co-localises with PML in vivo. More recent studies have now shown that SUMO-1 covalently modifies a number of target proteins including PML, RanGAP1 and IkappaBalpha and is proposed to play a role in either targeting modified proteins and/or inhibiting their degradation. The precise molecular role for the SUMO-1 modification of PML is unclear, and the specific lysine residues within PML that are targeted for modification and the PML sub-domains necessary for mediating the modification in vivo are unknown. Here we show that SUMO-1 covalently modifies PML both in vivo and in vitro and that the modification is mediated either directly or indirectly by the interaction of UBC9 with PML through the RING finger domain. Using site-specific mutagenesis, we have identified the primary PML-SUMO-1 modification site as being part of the nuclear localisation signal (Lys487 or Lys490). However SUMO-1 modification is not essential for PML nuclear localisation as only nuclear PML is modified. The sequence of the modification site fits into a consensus sequence for SUMO-1 modification and we have identified several other nuclear proteins which could also be targets for SUMO-1. We show that SUMO-1 modification appears to be dependant on the correct subcellular compartmentalisation of target proteins. We also find that the APL-associated fusion protein PML-RARA is efficiently modified in vitro, resulting in a specific and SUMO-1-dependent degradation of PML-RARA. Our results provide significant insights into the role of SUMO-1 modification of PML in both normal cells and the APL disease state.
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Affiliation(s)
- E Duprez
- Molecular Structure and Function Laboratory, Imperial Cancer Research Fund, London WC2A 3PX, UK
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43
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Hodges M, Tissot C, Howe K, Grimwade D, Freemont PS. Structure, organization, and dynamics of promyelocytic leukemia protein nuclear bodies. Am J Hum Genet 1998; 63:297-304. [PMID: 9683622 PMCID: PMC1377331 DOI: 10.1086/301991] [Citation(s) in RCA: 128] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- M Hodges
- Molecular Structure and Function Laboratory, Imperial Cancer Research Fund, London WC2A 3PX, United Kingdom
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44
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Grimwade D, Langabeer S, Howe K, Solomon E. RT-PCR in diagnosis and disease monitoring of acute promyelocytic leukemia (APL). Methods Mol Biol 1998; 89:333-58. [PMID: 9664338 DOI: 10.1385/0-89603-438-0:333] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- D Grimwade
- Somatic Cell Genetics Laboratory, Imperial Cancer Research Fund, London, UK
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45
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Howe K, Williamson J, Boddy N, Sheer D, Freemont P, Solomon E. The ubiquitin-homology gene PIC1: characterization of mouse (Pic1) and human (UBL1) genes and pseudogenes. Genomics 1998; 47:92-100. [PMID: 9465300 DOI: 10.1006/geno.1997.5091] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The human ubiquitin-homology domain protein PIC1 interacts with the acute promyelocytic leukemia protein PML, and both proteins form part of the large, nuclear, multiprotein complexes known as PML nuclear bodies. The normal punctate immunohistochemical staining pattern of these complexes is disrupted by viral infection or interferon treatment and in blast cells from patients with acute promyelocytic leukemia. We have characterized the murine homologue of PIC1 and have found that the predicted amino acid sequences of the mouse and human proteins are identical. High levels of Pic1 mRNA were detected in a range of mouse tissues. Pic1 genomic clones were isolated, and the organization of the gene was determined. Two processed Pic1 pseudogenes were also isolated and characterized. Through FISH, the chromosomal localizations of the mouse Pic1 gene and the two pseudogenes were determined. Human PIC1 (HGMW-approved symbol UBL1)-related sequences were isolated from human genomic DNA and were shown to represent processed pseudogenes. The role of PIC1 in a variety of cellular processes is discussed.
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Affiliation(s)
- K Howe
- Division of Medical & Molecular Genetics, Guy's Dental School, Guy's Hospital, London, United Kingdom.
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46
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Grimwade D, Gorman P, Duprez E, Howe K, Langabeer S, Oliver F, Walker H, Culligan D, Waters J, Pomfret M, Goldstone A, Burnett A, Freemont P, Sheer D, Solomon E. Characterization of cryptic rearrangements and variant translocations in acute promyelocytic leukemia. Blood 1997; 90:4876-85. [PMID: 9389704] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Acute promyelocytic leukemia (APL) is typified by the reciprocal translocation, t(15; 17)(q22; q21), leading to the formation of PML-RARalpha and RARalpha-PML fusion genes. We have characterized 7 cases of morphologic APL found to lack the t(15; 17) on conventional cytogenetic assessment. In 6 of 7 cases, cryptic PML-RARalpha rearrangements were identified by reverse transcriptase-polymerase chain reaction and fluorescent in situ hybridization (FISH); whereas, in the remaining patient, APL was associated with the variant translocation, t(11; 17)(q23; q12-21), leading to the formation of PLZF-RARalpha and RARalpha-PLZF fusion genes. In each of the cases with cryptic PML-RARalpha rearrangements, PML-RARalpha transcripts were detected in the absence of RARalpha-PML, consistent with the concept that PML-RARalpha is the critical oncogenic fusion protein. In 4 of these cases with evaluable metaphase spreads, the occurrence of a nonreciprocal translocation was confirmed by FISH with sole formation of the PML-RARalpha fusion gene; in 3 cases with morphologically normal chromosomes 15 and 17, RARalpha was inserted into PML on 15q, whereas in the remaining patient the PML-RARalpha fusion arose due to insertion of 15q-derived material including PML into RARalpha on 17q. Immunofluorescence studies were performed using antibodies raised against PML and PIC 1, a ubiquitin-homology domain protein previously identified as an interaction partner of PML. In acute myeloid leukemia (AML) of subtypes other than M3, PIC 1 was localized to the nuclear membrane and colocalized with PML within discrete nuclear bodies. In APL cases with cryptic PML-RARalpha rearrangements, the characteristic microparticulate pattern of PML staining was detected with partial colocalization with PIC 1, indicative of disruption of the nuclear bodies; whereas in t(11; 17)-associated APL, PML and PIC 1 remained colocalized within discrete nuclear bodies, as observed in non-APL cases. Although deregulation of the putative growth suppressor PML and delocalization of other nuclear body constituents have been advocated to play a key role in the development of t(15; 17)-associated APL, the present study shows that disruption of PML nuclear bodies per se is not a prerequisite for the pathogenesis of APL.
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Affiliation(s)
- D Grimwade
- Cancer Genetics Laboratory, Division of Medical & Molecular Genetics, UMDS, London, UK
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47
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Thomson GE, Hurzeler RJ, Fraunhar G, Howe K. Physician Assisted Living: the PAL partner initiative. Conn Med 1997; 61:775-8. [PMID: 9465458] [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: 02/06/2023]
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48
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Jackson S, Murdoch J, Howe K, Bedford C, Sanders T, Prentice A. The management of cervical carcinoma within the south west region of England. Expert Tumour Panel. Br J Obstet Gynaecol 1997; 104:140-4. [PMID: 9070127 DOI: 10.1111/j.1471-0528.1997.tb11033.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE 1. To audit the management of cervical carcinoma in the South West Region with the aim of identifying and addressing deficiencies. 2. To determine whether recent NHS restructuring has affected the provision of cancer care. DESIGN Retrospective review of hospital case notes. SETTING All hospitals in the South West Region of England. POPULATION Three hundred and twenty-four women with a diagnosis of cervical carcinoma: 191 were diagnosed in 1989 and 133 in 1993. MAIN OUTCOME MEASURES Documentation of patient assessment and management. RESULTS There was a mean delay of 17 days (range 0-66) from cervical smear to cytology report and 34 days (range 1-380) from general practitioner referral to attendance at a hospital clinic. Overall, 175 women (54%) had evidence of cytological assessment prior to treatment and 137 (42%) had a colposcopic assessment; 49% had cytological assessment and 37% had colposcopy in 1989, compared with 60% and 50%, respectively, in 1993. Excluding 49 cases of micro-invasive carcinoma, 238 case notes (86%) contained evidence of clinical examination; 195 women (71%) had had an examination under anaesthesia, 115 (42%) a chest radiograph, 123 (45%) an intravenous urogram or renal ultrasound, and 92 (33%) cystoscopy. One hundred and forty-seven women (53%) had FIGO staging recorded in the notes. As first line treatment, 69 had conservative surgery (39 for Stage IA), 138 had radiotherapy, and 107 had radical surgery. Ten had radical surgery for Stage IA but eight had a > 3 mm invasion or lymphatic/vascular spread. Thirty-one had Stage IB treated with radiotherapy of whom 14 were younger than 50 years of age. Following radical surgery 30% had evidence of sampling > or = 10 nodes, and 9% had tumour extending to the resection margins. CONCLUSIONS Record keeping was inadequate but appeared to indicate inconsistent cytological, clinical, colposcopic and radiological assessment, leading to inappropriate clinical delays and conservative surgery. Radical surgery often appeared inadequate, but poor node sampling rates may also reflect insufficient histopathological preparation or reporting. There was a reduction in the number of new cases of cervical carcinoma diagnosed in 1993, perhaps reflecting an observed increase in cytological surveillance. No other alterations in clinical practice were observed over the four-year period. We feel it is imperative to standardise assessment throughout the region with a minimum clinical and histopathological dataset.
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Affiliation(s)
- S Jackson
- Department of Obstetrics and Gynaecology, Southmead Hospital, Bristol, UK
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49
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Boddy MN, Howe K, Etkin LD, Solomon E, Freemont PS. PIC 1, a novel ubiquitin-like protein which interacts with the PML component of a multiprotein complex that is disrupted in acute promyelocytic leukaemia. Oncogene 1996; 13:971-82. [PMID: 8806687] [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: 02/02/2023]
Abstract
Acute promyelocytic leukaemia (APL) arises following a reciprocal translocation t(15;17) that fuses PML with retinoic acid receptor alpha (RARA). The PML-RARA fusion protein targets and disrupts nuclear multiprotein complexes called PODs, ND10 or NBs, a process which is associated with a block in myeloid differentiation leading to APL. A human B-cell cDNA library was screened for PML-interacting clones and a single positive clone (PIC1) was isolated. The sequence of PIC1 shows 52% identity to a S. cerevisiae ubiquitin-like protein that was cloned as a suppressor of mutations in MIF2, a protein required for mitotic spindle integrity during anaphase. Transient transfection of NIH3T3 cells with PIC1 results in a nuclear staining pattern coincident with that of endogenous mouse PML. Further, cotransfection of PIC1 with human PML produces a completely overlapping staining pattern between the two proteins. An antibody raised against PIC1 detects a punctate staining pattern in HeLa cells that is coincident with endogenous human PML. There is no significant colocalisation observed between the staining of PML/ PML-RARA and PIC1 in an APL-derived cell line NB4, as compared to cells expressing only wild type PML. However, following all trans retinoic acid treatment of NB4 cells a significant relocalisation of PIC1 and PML is observed. PIC1 is the first identified NB-associated protein that interacts with PML, the function of which may lead to a fuller understanding of the molecular events leading to APL.
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MESH Headings
- 3T3 Cells
- Amino Acid Sequence
- Animals
- Blotting, Northern
- Blotting, Western
- Cell Line
- Clone Cells
- Cloning, Molecular
- Cyclin-Dependent Kinase Inhibitor p21
- Cyclins/chemistry
- Cyclins/genetics
- Cyclins/metabolism
- Escherichia coli/genetics
- Escherichia coli/metabolism
- Fluorescent Antibody Technique, Indirect
- HeLa Cells/metabolism
- Humans
- Hybrid Cells
- Lamins
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/metabolism
- Leukemia, Promyelocytic, Acute/pathology
- Mice
- Molecular Sequence Data
- Neoplasm Proteins
- Nuclear Proteins/metabolism
- Promyelocytic Leukemia Protein
- Protein Biosynthesis
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- SUMO-1 Protein
- Saccharomyces cerevisiae/genetics
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Tissue Distribution
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Transfection
- Tumor Cells, Cultured
- Tumor Suppressor Proteins
- Ubiquitins/chemistry
- Ubiquitins/genetics
- Ubiquitins/metabolism
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Affiliation(s)
- M N Boddy
- Protein Structure Laboratory, Imperial Cancer Research Fund, London, UK
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50
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Grimwade D, Howe K, Langabeer S, Davies L, Oliver F, Walker H, Swirsky D, Wheatley K, Goldstone A, Burnett A, Solomon E. Establishing the presence of the t(15;17) in suspected acute promyelocytic leukaemia: cytogenetic, molecular and PML immunofluorescence assessment of patients entered into the M.R.C. ATRA trial. M.R.C. Adult Leukaemia Working Party. Br J Haematol 1996; 94:557-73. [PMID: 8790159] [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: 02/02/2023]
Abstract
Detection of the t(15;17) or its molecular consequence, the PML-RAR alpha rearrangement, is critical for meaningful analysis of clinical trials involving patients with suspected acute promyelocytic leukaemia (APL). Its presence remains the best predictor of a favourable response to retinoids, such as ATRA, which in combination with chemotherapy confer significant improvements in disease-free survival. We have evaluated the relative efficacy of RT-PCR, cytogenetics and PML immunofluorescence staining to identify the existence of the translocation in 100 patients entered into the Medical Research Council (M.R.C.) ATRA trial. RT-PCR successfully identified PML-RAR alpha rearrangements in 93/100 patients, including 65 where only peripheral blood or post-induction marrow samples were available for analysis and in 12 patients in whom cytogenetic assessment failed to demonstrate t(15;17) due to poor-quality metaphases (10/12) or as a reflection of cryptic PML-RAR alpha rearrangements (2/12). Parallel employment of the RAR alpha-PML assay confirmed expression of del(17q)-derived transcripts in 81% and permitted determination of the PML breakpoint (a potential independent prognostic variable) in all 93 cases. Sequencing of RT-PCR products derived from 50 patients with 3' PML breakpoints revealed five bcr 2 cases, including a novel exon 5 breakpoint. 35/81 (43%) patients with cytogenetic evidence of t(15;17) possessed additional karyotypic abnormalities. In four patients with available buffy coat smears, lack of cytogenetic or molecular evidence of the t(15;17) was confirmed by a wild-type PML immunofluorescence nuclear staining pattern, in contrast to the characteristic microparticulate distribution detected in 14 patients with RT-PCR evidence of the rearrangement. However, although PML immunofluorescence staining is suitable for rapid determination of patients likely to benefit from ATRA, this approach does not obviate the need for cytogenetic and RT-PCR analysis of all patients entered into APL clinical trials, because both techniques provide additional information which may prove to be of independent prognostic significance.
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MESH Headings
- Adolescent
- Adult
- Aged
- Amino Acid Sequence
- Base Sequence
- Chromosomes, Human, Pair 15
- Chromosomes, Human, Pair 17
- Clinical Trials as Topic
- DNA Primers
- Exons
- Female
- Fluorescent Antibody Technique
- Fusion Proteins, bcr-abl/analysis
- Humans
- Leukemia, Promyelocytic, Acute/diagnosis
- Leukemia, Promyelocytic, Acute/genetics
- Male
- Middle Aged
- Molecular Sequence Data
- Polymerase Chain Reaction
- Prognosis
- Translocation, Genetic
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Affiliation(s)
- D Grimwade
- Somatic Cell Genetics Laboratory, Imperial Cancer Research Fund, London
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