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  1. AU="Edwin R. Chilvers"
  2. AU="Marco Heredia-R"
  3. AU="Barbora Chladkova"
  4. AU=Chen Yi-Ning
  5. AU="Dirce Maria Lobo Marchioni"
  6. AU="Martínez Fernández, Lidia"
  7. AU="Graham J. T"
  8. AU="Płońska-Gościniak, Edyta"
  9. AU="Shackira, A M"
  10. AU="Fukui, Mototaka"
  11. AU="Jones, Clare A"
  12. AU="Chen, Yonghua"
  13. AU=Das Nilay Kanti
  14. AU="Christine Brittsan"
  15. AU="Skinner, Henry"
  16. AU=Wang Wan-Ying
  17. AU="Ingrid Natalia Muñoz Quijano"
  18. AU="Xu, Jianrong"
  19. AU="Klutts, Abigail"
  20. AU="Corumlu, Ufuk"
  21. AU="Frank Dickmann"
  22. AU="Paz-Priel, Ido"
  23. AU=Budhraja Anshul

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  1. Artikel ; Online: Co-trimoxazole to reduce mortality, transplant, or unplanned hospitalisation in people with moderate to very severe idiopathic pulmonary fibrosis

    Andrew M Wilson / Allan B Clark / Anthony Cahn / Edwin R Chilvers / William Fraser / Matthew Hammond / David M Livermore / Toby M Maher / Helen Parfrey / Ann Marie Swart / Susan Stirling / David Thickett / Moira Whyte

    Efficacy and Mechanism Evaluation, Vol 8, Iss

    the EME-TIPAC RCT

    2021  Band 9

    Abstract: Background: Idiopathic pulmonary fibrosis is an irreversible fibrosing lung disorder with a poor prognosis. Current treatments slow the rate of decline in lung function and may influence survival, but they have a significant side-effect profile and so ... ...

    Abstract Background: Idiopathic pulmonary fibrosis is an irreversible fibrosing lung disorder with a poor prognosis. Current treatments slow the rate of decline in lung function and may influence survival, but they have a significant side-effect profile and so additional therapeutic options are required. People with idiopathic pulmonary fibrosis have altered innate immunity and altered lung microbiota, with the bacterial burden relating to mortality. Two randomised controlled trials have demonstrated beneficial effects with co-trimoxazole (SEPTRIN®; Essential Generics Ltd, Egham, UK; Chemidex Generics Ltd, Egham, UK), with the suggestion of an improvement in rates of survival. Objectives: To determine the clinical efficacy of co-trimoxazole in people with moderate to severe idiopathic pulmonary fibrosis. Design: A Phase II, double-blind, placebo-controlled, parallel-group, randomised multicentre study. Setting: UK specialist interstitial lung disease centres. Participants: Patients who were randomised had idiopathic pulmonary fibrosis diagnosed by a multidisciplinary team. In addition, patients had significant breathlessness (i.e. a Medical Research Council Dyspnoea Scale score of > 1) and impaired lung function (i.e. a forced vital capacity of < 75% predicted). Patients could be taking licensed medication for idiopathic pulmonary fibrosis, but were excluded if they had significant comorbidities, including airflow obstruction. Intervention: Oral co-trimoxazole, 960 mg twice per day (two 480-mg tablets twice per day), compared with placebo tablets (two tablets twice per day) for a median of 27 months (range 12–42 months). Otherwise, both trial groups had standard care. Main outcome measures: The primary outcome was the time to death (all causes), transplant or first non-elective hospital admission. Secondary outcomes were the individual components of the primary end point and the number of respiratory-related events. Questionnaires (the King’s Brief Interstitial Lung Disease questionnaire; the Medical Research ...
    Schlagwörter idiopathic pulmonary fibrosis ; co-trimoxazole ; mortality ; hospitalisation ; cough ; randomised controlled trial ; Medicine ; R
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2021-07-01T00:00:00Z
    Verlag NIHR Journals Library
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Cardiovascular adaptation to hypoxia and the role of peripheral resistance

    Andrew S Cowburn / David Macias / Charlotte Summers / Edwin R Chilvers / Randall S Johnson

    eLife, Vol

    2017  Band 6

    Abstract: Systemic vascular pressure in vertebrates is regulated by a range of factors: one key element of control is peripheral resistance in tissue capillary beds. Many aspects of the relationship between central control of vascular flow and peripheral ... ...

    Abstract Systemic vascular pressure in vertebrates is regulated by a range of factors: one key element of control is peripheral resistance in tissue capillary beds. Many aspects of the relationship between central control of vascular flow and peripheral resistance are unclear. An important example of this is the relationship between hypoxic response in individual tissues, and the effect that response has on systemic cardiovascular adaptation to oxygen deprivation. We show here how hypoxic response via the HIF transcription factors in one large vascular bed, that underlying the skin, influences cardiovascular response to hypoxia in mice. We show that the response of the skin to hypoxia feeds back on a wide range of cardiovascular parameters, including heart rate, arterial pressures, and body temperature. These data represent the first demonstration of a dynamic role for oxygen sensing in a peripheral tissue directly modifying cardiovascular response to the challenge of hypoxia.
    Schlagwörter hypoxia ; peripheral resistance ; HIF ; skin ; Medicine ; R ; Science ; Q ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2017-10-01T00:00:00Z
    Verlag eLife Sciences Publications Ltd
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: The Aminopeptidase CD13 Induces Homotypic Aggregation in Neutrophils and Impairs Collagen Invasion.

    Christine A Fiddler / Helen Parfrey / Andrew S Cowburn / Ding Luo / Gerard B Nash / Gillian Murphy / Edwin R Chilvers

    PLoS ONE, Vol 11, Iss 7, p e

    2016  Band 0160108

    Abstract: Aminopeptidase N (CD13) is a widely expressed cell surface metallopeptidase involved in the migration of cancer and endothelial cells. Apart from our demonstration that CD13 modulates the efficacy of tumor necrosis factor-α-induced apoptosis in ... ...

    Abstract Aminopeptidase N (CD13) is a widely expressed cell surface metallopeptidase involved in the migration of cancer and endothelial cells. Apart from our demonstration that CD13 modulates the efficacy of tumor necrosis factor-α-induced apoptosis in neutrophils, no other function for CD13 has been ascribed in this cell. We hypothesized that CD13 may be involved in neutrophil migration and/or homotypic aggregation. Using purified human blood neutrophils we confirmed the expression of CD13 on neutrophils and its up-regulation by pro-inflammatory agonists. However, using the anti-CD13 monoclonal antibody WM-15 and the aminopeptidase enzymatic inhibitor bestatin we were unable to demonstrate any direct involvement of CD13 in neutrophil polarisation or chemotaxis. In contrast, IL-8-mediated neutrophil migration in type I collagen gels was significantly impaired by the anti-CD13 monoclonal antibodies WM-15 and MY7. Notably, these antibodies also induced significant homotypic aggregation of neutrophils, which was dependent on CD13 cross-linking and was attenuated by phosphoinositide 3-kinase and extracellular signal-related kinase 1/2 inhibition. Live imaging demonstrated that in WM-15-treated neutrophils, where homotypic aggregation was evident, the number of cells entering IL-8 impregnated collagen I gels was significantly reduced. These data reveal a novel role for CD13 in inducing homotypic aggregation in neutrophils, which results in a transmigration deficiency; this mechanism may be relevant to neutrophil micro-aggregation in vivo.
    Schlagwörter Medicine ; R ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2016-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Publisher Correction

    David Stacey / Lingyan Chen / Paulina J. Stanczyk / Joanna M. M. Howson / Amy M. Mason / Stephen Burgess / Stephen MacDonald / Jonathan Langdown / Harriett McKinney / Kate Downes / Neda Farahi / James E. Peters / Saonli Basu / James S. Pankow / Weihong Tang / Nathan Pankratz / Maria Sabater-Lleal / Paul S. de Vries / Nicholas L. Smith /
    CHARGE Hemostasis Working Group / Amy D. Gelinas / Daniel J. Schneider / Nebojsa Janjic / Nilesh J. Samani / Shu Ye / Charlotte Summers / Edwin R. Chilvers / John Danesh / Dirk S. Paul

    Nature Communications, Vol 13, Iss 1, Pp 1-

    Elucidating mechanisms of genetic cross-disease associations at the PROCR vascular disease locus

    2022  Band 2

    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2022-04-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel ; Online: The Efficacy and Mechanism Evaluation of Treating Idiopathic Pulmonary fibrosis with the Addition of Co-trimoxazole (EME-TIPAC)

    Matthew Hammond / Allan B. Clark / Anthony P. Cahn / Edwin R. Chilvers / William Duncan Fraser / David M. Livermore / Toby M. Maher / Helen Parfrey / Ann Marie Swart / Susan Stirling / David Thickett / Moira Whyte / Andrew Wilson

    Trials, Vol 19, Iss 1, Pp 1-

    study protocol for a randomised controlled trial

    2018  Band 12

    Abstract: Abstract Background We hypothesise, based upon the findings from our previous trial, that the addition of co-trimoxazole to standard therapy is beneficial to patients with moderate to severe idiopathic pulmonary fibrosis (IPF). We aim to investigate this ...

    Abstract Abstract Background We hypothesise, based upon the findings from our previous trial, that the addition of co-trimoxazole to standard therapy is beneficial to patients with moderate to severe idiopathic pulmonary fibrosis (IPF). We aim to investigate this by assessing unplanned hospitalisation-free survival (defined as time from randomisation to first non-elective hospitalisation, lung transplant or death) and to determine whether any effect relates to changes in infection and/or markers of disease control and neutrophil activity. Methods/design The EME-TIPAC trial is a double-blind, placebo-controlled, randomised, multicentre clinical trial. A total of 330 symptomatic patients, aged 40 years old or older, with IPF diagnosed by a multidisciplinary team (MDT) according to international guidelines and a FVC ≤ 75% predicted will be enrolled. Patients are randomised equally to receive either two tablets of co-trimoxazole 480 mg or two placebo tablets twice daily over a median treatment period of 27 (range 12–42) months. All patients receive folic acid 5 mg daily whilst on the trial IMP to reduce the risk of bone marrow depression. The primary outcome for the trial is a composite endpoint consisting of the time to death, transplant or first non-elective hospital admission and will be determined from adverse event reporting, hospital databases and the Office of National Statistics with active tracing of patients missing appointments. Secondary outcomes include the individual components of the primary outcome, (1) King’s Brief Interstitial Lung Disease Questionnaire, (2) MRC Dyspnoea Score, (3) EQ5D, (4) spirometry, (5) total lung-diffusing capacity and (6) routine sputum microbiology. Blood will be taken for cell count, biochemistry and analysis of biomarkers including C-reactive protein and markers of disease. The trial will last for 4 years. Recruitment will take place in a network of approximately 40 sites throughout the UK (see Table 1 for a full list of participating sites). We expect recruitment for 30 months, ...
    Schlagwörter Idiopathic pulmonary fibrosis ; Co-trimoxazole ; Forced vital capacity ; Mortality ; Medicine (General) ; R5-920
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2018-02-01T00:00:00Z
    Verlag BMC
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: Detection of human disease conditions by single-cell morpho-rheological phenotyping of blood

    Nicole Toepfner / Christoph Herold / Oliver Otto / Philipp Rosendahl / Angela Jacobi / Martin Kräter / Julia Stächele / Leonhard Menschner / Maik Herbig / Laura Ciuffreda / Lisa Ranford-Cartwright / Michal Grzybek / Ünal Coskun / Elisabeth Reithuber / Geneviève Garriss / Peter Mellroth / Birgitta Henriques-Normark / Nicola Tregay / Meinolf Suttorp /
    Martin Bornhäuser / Edwin R Chilvers / Reinhard Berner / Jochen Guck

    eLife, Vol

    2018  Band 7

    Abstract: Blood is arguably the most important bodily fluid and its analysis provides crucial health status information. A first routine measure to narrow down diagnosis in clinical practice is the differential blood count, determining the frequency of all major ... ...

    Abstract Blood is arguably the most important bodily fluid and its analysis provides crucial health status information. A first routine measure to narrow down diagnosis in clinical practice is the differential blood count, determining the frequency of all major blood cells. What is lacking to advance initial blood diagnostics is an unbiased and quick functional assessment of blood that can narrow down the diagnosis and generate specific hypotheses. To address this need, we introduce the continuous, cell-by-cell morpho-rheological (MORE) analysis of diluted whole blood, without labeling, enrichment or separation, at rates of 1000 cells/sec. In a drop of blood we can identify all major blood cells and characterize their pathological changes in several disease conditions in vitro and in patient samples. This approach takes previous results of mechanical studies on specifically isolated blood cells to the level of application directly in blood and adds a functional dimension to conventional blood analysis.
    Schlagwörter real-time deformability cytometry ; cell mechanics ; spherocytosis ; malaria ; neutrophil activation ; leukemia ; Medicine ; R ; Science ; Q ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2018-01-01T00:00:00Z
    Verlag eLife Sciences Publications Ltd
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel ; Online: Viscoelastic properties of differentiating blood cells are fate- and function-dependent.

    Andrew E Ekpenyong / Graeme Whyte / Kevin Chalut / Stefano Pagliara / Franziska Lautenschläger / Christine Fiddler / Stephan Paschke / Ulrich F Keyser / Edwin R Chilvers / Jochen Guck

    PLoS ONE, Vol 7, Iss 9, p e

    2012  Band 45237

    Abstract: Although cellular mechanical properties are known to alter during stem cell differentiation, understanding of the functional relevance of such alterations is incomplete. Here, we show that during the course of differentiation of human myeloid precursor ... ...

    Abstract Although cellular mechanical properties are known to alter during stem cell differentiation, understanding of the functional relevance of such alterations is incomplete. Here, we show that during the course of differentiation of human myeloid precursor cells into three different lineages, the cells alter their viscoelastic properties, measured using an optical stretcher, to suit their ultimate fate and function. Myeloid cells circulating in blood have to be advected through constrictions in blood vessels, engendering the need for compliance at short time-scales ( minutes), compared to undifferentiated cells. These findings suggest that reduction in steady-state viscosity is a physiological adaptation for enhanced migration through tissues. Our results indicate that the material properties of cells define their function, can be used as a cell differentiation marker and could serve as target for novel therapies.
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2012-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  8. Artikel ; Online: The Influence of the Spleen on Neutrophil Apoptosis In Vivo

    Jessica F. White / Andrew S. Cowburn / Charlotte Summers / Karen A. Cadwallader / Iain Mackenzie / Raaj K. Praseedom / Edwin R. Chilvers / A. Mike Peters

    Journal of Cell Death, Vol 2011, Iss 4, Pp 1-

    2011  Band 5

    Schlagwörter Biology (General) ; QH301-705.5 ; Science ; Q ; DOAJ:Biology ; DOAJ:Biology and Life Sciences ; Cytology ; QH573-671
    Sprache Englisch
    Erscheinungsdatum 2011-03-01T00:00:00Z
    Verlag Libertas Academica
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  9. Artikel ; Online: The Influence of the Spleen on Neutrophil Apoptosis in Vivo

    Jessica F. White / Andrew S. Cowburn / Charlotte Summers / Karen A. Cadwallader / Iain Mackenzie / Raaj K. Praseedom / Edwin R. Chilvers / A. Mike Peters

    Japanese Clinical Medicine, Vol

    2011  Band 4

    Abstract: In contrast to radiolabelled erythrocytes and platelets, radiolabelled neutrophils leave the circulating blood in an exponential manner, indicating random rather than age-dependent removal. Neutrophils transit the spleen with a range of residence times ... ...

    Abstract In contrast to radiolabelled erythrocytes and platelets, radiolabelled neutrophils leave the circulating blood in an exponential manner, indicating random rather than age-dependent removal. Neutrophils transit the spleen with a range of residence times that are log normally distributed. We hypothesized that neutrophils are conditioned to undergo apoptosis to an extent that depends on their intrasplenic residence time and that this provides an explanation for the random removal of these cells from blood. Splenic venous and peripheral arterial blood was sampled simultaneously during abdominal surgery in four patients and age-dependent apoptosis assessed in whole blood using annexin V/PI staining. Apoptosis increased after 4 and 20 h ex-vivo incubation and was invariably higher in splenic venous vs arterial neutrophils. Transit through the spleen appears to promote neutrophil apoptosis, with subsequent high efficiency clearance by the liver. This may explain the mechanism underlying the random removal of neutrophils from the blood.
    Schlagwörter Medicine (General) ; R5-920
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2011-01-01T00:00:00Z
    Verlag SAGE Publishing
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  10. Artikel ; Online: Functional redundancy of class I phosphoinositide 3-kinase (PI3K) isoforms in signaling growth factor-mediated human neutrophil survival.

    Jatinder K Juss / Richard P Hayhoe / Charles E Owen / Ian Bruce / Sarah R Walmsley / Andrew S Cowburn / Suhasini Kulkarni / Keith B Boyle / Len Stephens / Phillip T Hawkins / Edwin R Chilvers / Alison M Condliffe

    PLoS ONE, Vol 7, Iss 9, p e

    2012  Band 45933

    Abstract: We have investigated the contribution of individual phosphoinositide 3-kinase (PI3K) Class I isoforms to the regulation of neutrophil survival using (i) a panel of commercially available small molecule isoform-selective PI3K Class I inhibitors, (ii) ... ...

    Abstract We have investigated the contribution of individual phosphoinositide 3-kinase (PI3K) Class I isoforms to the regulation of neutrophil survival using (i) a panel of commercially available small molecule isoform-selective PI3K Class I inhibitors, (ii) novel inhibitors, which target single or multiple Class I isoforms (PI3Kα, PI3Kβ, PI3Kδ, and PI3Kγ), and (iii) transgenic mice lacking functional PI3K isoforms (p110δ(KO)γ(KO) or p110γ(KO)). Our data suggest that there is considerable functional redundancy amongst Class I PI3Ks (both Class IA and Class IB) with regard to GM-CSF-mediated suppression of neutrophil apoptosis. Hence pharmacological inhibition of any 3 or more PI3K isoforms was required to block the GM-CSF survival response in human neutrophils, with inhibition of individual or any two isoforms having little or no effect. Likewise, isolated blood neutrophils derived from double knockout PI3K p110δ(KO)γ(KO) mice underwent normal time-dependent constitutive apoptosis and displayed identical GM-CSF mediated survival to wild type cells, but were sensitized to pharmacological inhibition of the remaining PI3K isoforms. Surprisingly, the pro-survival neutrophil phenotype observed in patients with an acute exacerbation of chronic obstructive pulmonary disease (COPD) was resilient to inactivation of the PI3K pathway.
    Schlagwörter Medicine ; R ; Science ; Q
    Thema/Rubrik (Code) 572
    Sprache Englisch
    Erscheinungsdatum 2012-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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