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  • Journal article
    Hewitt RJ, Bartlett EC, Ganatra R, Butt H, Kouranos V, Chua F, Kokosi M, Molyneaux PL, Desai SR, Wells AU, Jenkins RG, Renzoni EA, Kemp S, Devaraj A, George PMet al., 2022,

    Lung cancer screening provides an opportunity for early diagnosis and treatment of interstitial lung disease

    , THORAX, ISSN: 0040-6376
  • Journal article
    Molyneaux PL, Fahy WA, Byrne AJ, Braybrooke R, Saunders P, Toshner R, Albers G, Chua F, Renzoni EA, Wells AU, Karkera Y, Oballa E, Saini G, Nicholson AG, Jenkins G, Maher TMet al., 2022,

    CYFRA 21-1 predicts progression in IPF: a prospective longitudinal analysis of the PROFILE cohort

    , American Journal of Respiratory and Critical Care Medicine, Vol: 205, Pages: 1440-1448, ISSN: 1073-449X

    OBJECTIVES: Idiopathic pulmonary fibrosis (IPF) is a progressive and inevitably fatal condition for which there are a lack of effective biomarkers to guide therapeutic decision making. RATIONALE: To determine the relationship between serum levels of the cytokeratin fragment CYFRA 21-1 and disease progression and mortality in individuals with IPF enrolled in the PROFILE study. METHODS: CYFRA 21-1 was identified by immunohistochemistry in samples of human lung. Concentrations of CYFRA 21-1 were measured using an Elisa-based assay in serum, collected at baseline, 1- and 3-months, from 491 individuals with an incident diagnosis of IPF enrolled in the PROFILE study and from 100 control subjects. Study subjects were followed for a minimum of 3 years. MEASUREMENTS AND MAIN RESULTS: CYFRA 21-1 localises to hyperplastic epithelium in IPF lung. CYFRA 21-1 levels were significantly higher in IPF subjects compared to healthy controls in both discovery (n=132) (control 0.96±0.81 ng/mL versus IPF; 2.34±2.15 ng/mL, p < 0.0001) and validation (n=359) (control; 2.21±1.54 ng/mL and IPF; 4.13±2.77 ng/mL, p<0.0001) cohorts. Baseline levels of CYFRA 21-1 distinguished individuals at risk of 12-month disease progression (C-statistic 0.70 (95% CI 0.61-0.79), p < 0.0001) and were predictive of overall-mortality (HR 1.12 (1.06-1.19) per 1 ng/mL increase in CYFRA 21-1, p=0.0001). Furthermore, 3-month change in levels of CYFRA 21-1 separately predicted 12-month and overall survival in both the discovery and validation cohorts. CONCLUSIONS: CYFRA 21-1, a marker of epithelial damage and turnover, has the potential to be an important prognostic and therapeutic biomarker in individuals with IPF.

  • Journal article
    Allen RJ, Stockwell A, Oldham JM, Guillen-Guio B, Schwartz DA, Maher TM, Flores C, Noth I, Yaspan BL, Jenkins RG, Wain Let al., 2022,

    Genome-wide association study across five cohorts identifies five novel loci associated with idiopathic pulmonary fibrosis

    , THORAX, Vol: 77, Pages: 829-833, ISSN: 0040-6376
  • Journal article
    Kraven LM, Taylor AR, Molyneaux PL, Maher T, McDonough J, Mura M, Yang I, Schwartz DA, Huang Y, Noth I, Ma SF, Yeo AJ, Fahy WA, Jenkins G, Wain Let al., 2022,

    Cluster analysis of transcriptomic datasets to identify endotypes of idiopathic pulmonary fibrosis

    , Thorax, ISSN: 0040-6376

    Background Considerable clinical heterogeneity in idiopathic pulmonary fibrosis (IPF) suggests the existence of multiple disease endotypes. Identifying these endotypes would improve our understanding of the pathogenesis of IPF and could allow for a biomarker-driven personalised medicine approach. We aimed to identify clinically distinct groups of patients with IPF that could represent distinct disease endotypes.Methods We co-normalised, pooled and clustered three publicly available blood transcriptomic datasets (total 220 IPF cases). We compared clinical traits across clusters and used gene enrichment analysis to identify biological pathways and processes that were over-represented among the genes that were differentially expressed across clusters. A gene-based classifier was developed and validated using three additional independent datasets (total 194 IPF cases).Findings We identified three clusters of patients with IPF with statistically significant differences in lung function (p=0.009) and mortality (p=0.009) between groups. Gene enrichment analysis implicated mitochondrial homeostasis, apoptosis, cell cycle and innate and adaptive immunity in the pathogenesis underlying these groups. We developed and validated a 13-gene cluster classifier that predicted mortality in IPF (high-risk clusters vs low-risk cluster: HR 4.25, 95% CI 2.14 to 8.46, p=3.7×10−5).Interpretation We have identified blood gene expression signatures capable of discerning groups of patients with IPF with significant differences in survival. These clusters could be representative of distinct pathophysiological states, which would support the theory of multiple endotypes of IPF. Although more work must be done to confirm the existence of these endotypes, our classifier could be a useful tool in patient stratification and outcome prediction in IPF.

  • Journal article
    Fabbri L, Moss S, Khan FA, Chi W, Xia J, Robinson K, Smyth AR, Jenkins G, Stewart Iet al., 2022,

    Parenchymal lung abnormalities following hospitalisation for COVID-19 and viral pneumonitis: a systematic review and meta-analysis

    , Thorax, ISSN: 0040-6376

    Introduction Persisting respiratory symptoms in COVID-19 survivors may be related to development of pulmonary fibrosis. We assessed the proportion of chest CT scans and pulmonary function tests consistent with parenchymal lung disease in the follow-up of people hospitalised with COVID-19 and viral pneumonitis.Methods Systematic review and random effects meta-analysis of proportions using studies of adults hospitalised with SARS-CoV-2, SARS-CoV, MERS-CoV or influenza pneumonia and followed up within 12 months. Searches performed in MEDLINE and Embase. Primary outcomes were proportion of radiological sequelae on CT scans; restrictive impairment; impaired gas transfer. Heterogeneity was explored in meta-regression.Results Ninety-five studies (98.9% observational) were included in qualitative synthesis, 70 were suitable for meta-analysis including 60 SARS-CoV-2 studies with a median follow-up of 3 months. In SARS-CoV-2, the overall estimated proportion of inflammatory sequelae was 50% during follow-up (0.50; 95% CI 0.41 to 0.58; I2=95%), fibrotic sequelae were estimated in 29% (0.29; 95% CI 0.22 to 0.37; I2=94.1%). Follow-up time was significantly associated with estimates of inflammatory sequelae (−0.036; 95% CI −0.068 to –0.004; p=0.029), associations with fibrotic sequelae did not reach significance (−0.021; 95% CI −0.051 to 0.009; p=0.176). Impaired gas transfer was estimated at 38% of lung function tests (0.38 95% CI 0.32 to 0.44; I2=92.1%), which was greater than restrictive impairment (0.17; 95% CI 0.13 to 0.23; I2=92.5%), neither were associated with follow-up time (p=0.207; p=0.864).Discussion Sequelae consistent with parenchymal lung disease were observed following COVID-19 and other viral pneumonitis. Estimates should be interpreted with caution due to high heterogeneity, differences in study casemix and initial severity.

  • Journal article
    Khan F, Howard L, Hearson G, Edwards C, Barber C, Jones S, Wilson AM, Maher TM, Saini G, Stewart I, Jenkins Get al., 2022,

    Clinical utility of home versus hospital spirometry in fibrotic ILD: evaluation following INJUSTIS interim analysis

    , Annals of the American Thoracic Society, Vol: 19, Pages: 506-510, ISSN: 1546-3222
  • Journal article
    Wilkinson AL, John AE, Barrett JW, Gower E, Morrison VS, Man Y, Pun KT, Roper JA, Luckett JC, Borthwick LA, Barksby BS, Burgoyne RA, Barnes R, Fisher AJ, Procopiou PA, Hatley RJD, Barrett TN, Marshall RP, Macdonald SJF, Jenkins RG, Slack RJet al., 2021,

    Pharmacological characterisation of GSK3335103, an oral alpha v beta 6 integrin small molecule RGD-mimetic inhibitor for the treatment of fibrotic disease

    , European Journal of Pharmacology, Vol: 913, Pages: 1-10c, ISSN: 0376-6357

    Fibrosis is the formation of scar tissue due to injury or long-term inflammation and is a leading cause of morbidity and mortality. Activation of the pro-fibrotic cytokine transforming growth factor-β (TGFβ) via the alpha-V beta-6 (αvβ6) integrin has been identified as playing a key role in the development of fibrosis. Therefore, a drug discovery programme to identify an orally bioavailable small molecule αvβ6 arginyl-glycinyl-aspartic acid (RGD)-mimetic was initiated. As part of a medicinal chemistry programme GSK3335103 was identified and profiled in a range of pre-clinical in vitro and in vivo systems. GSK3335103 was shown to bind to the αvβ6 with high affinity and demonstrated fast binding kinetics. In primary human lung epithelial cells, GSK3335103-induced concentration- and time-dependent internalisation of αvβ6 with a rapid return of integrin to the cell surface observed after washout. Following sustained engagement of the αvβ6 integrin in vitro, lysosomal degradation was induced by GSK3335103. GSK3335103 was shown to engage with the αvβ6 integrin and inhibit the activation of TGFβ in both ex vivo IPF tissue and in a murine model of bleomycin-induced lung fibrosis, as measured by αvβ6 engagement, TGFβ signalling and collagen deposition, with a prolonged duration of action observed in vivo. In summary, GSK3335103 is a potent αvβ6 inhibitor that attenuates TGFβ signalling in vitro and in vivo with a well-defined pharmacokinetic/pharmacodynamic relationship. This translates to a significant reduction of collagen deposition in vivo and therefore GSK3335103 represents a potential novel oral therapy for fibrotic disorders.

  • Journal article
    Slack RJ, Macdonald SJF, Roper JA, Jenkins RG, Hatley RJDet al., 2021,

    Emerging therapeutic opportunities for integrin inhibitors

    , NATURE REVIEWS DRUG DISCOVERY, Vol: 21, Pages: 60-78, ISSN: 1474-1776
  • Journal article
    Khan FA, Stewart I, Fabbri L, Moss S, Robinson K, Smyth AR, Jenkins Get al., 2021,

    Systematic review and meta-analysis of anakinra, sarilumab, siltuximab and tocilizumab for COVID-19

    , Thorax, Vol: 76, Pages: 907-919, ISSN: 0040-6376

    Background There is accumulating evidence for an overly activated immune response in severe COVID-19, with several studies exploring the therapeutic role of immunomodulation. Through systematic review and meta-analysis, we assess the effectiveness of specific interleukin inhibitors for the treatment of COVID-19.Methods Electronic databases were searched on 7 January 2021 to identify studies of immunomodulatory agents (anakinra, sarilumab, siltuximab and tocilizumab) for the treatment of COVID-19. The primary outcomes were severity on an Ordinal Scale measured at day 15 from intervention and days to hospital discharge. Key secondary endpoints included overall mortality.Results 71 studies totalling 22 058 patients were included, 6 were randomised trials. Most studies explored outcomes in patients who received tocilizumab (60/71). In prospective studies, tocilizumab was associated with improved unadjusted survival (risk ratio 0.83, 95% CI 0.72 to 0.96, I2=0.0%), but conclusive benefit was not demonstrated for other outcomes. In retrospective studies, tocilizumab was associated with less severe outcomes on an Ordinal Scale (generalised OR 1.34, 95% CI 1.10 to 1.64, I2=98%) and adjusted mortality risk (HR 0.52, 95% CI 0.41 to 0.66, I2=76.6%). The mean difference in duration of hospitalisation was 0.36 days (95% CI −0.07 to 0.80, I2=93.8%). There was substantial heterogeneity in retrospective studies, and estimates should be interpreted cautiously. Other immunomodulatory agents showed similar effects to tocilizumab, but insufficient data precluded meta-analysis by agent.Conclusion Tocilizumab was associated with a lower relative risk of mortality in prospective studies, but effects were inconclusive for other outcomes. Current evidence for the efficacy of anakinra, siltuximab or sarilumab in COVID-19 is insufficient, with further studies urgently needed for conclusive findings.

  • Journal article
    Wild JM, Porter JC, Molyneaux PL, George PM, Stewart I, Allen RJ, Aul R, Baillie JK, Barratt SL, Beirne P, Bianchi SM, Blaikley JF, Brooke J, Chaudhuri N, Collier G, Denneny EK, Docherty A, Fabbri L, Gibbons MA, Gleeson F, Gooptu B, Hall IP, Hanley NA, Heightman M, Hillman TE, Johnson SR, Jones MG, Khan F, Lawson R, Mehta P, Mitchell JA, Plate M, Poinasamy K, Quint JK, Rivera-Ortega P, Semple M, Simpson AJ, Smith DJF, Spears M, Spencer LG, Stanel SC, Thickett DR, Thompson AAR, Walsh SLF, Weatherley ND, Weeks ME, Wootton DG, Brightling CE, Chambers RC, Ho L-P, Jacob J, Piper Hanley K, Wain L, Jenkins RGet al., 2021,

    Understanding the burden of interstitial lung disease post-COVID-19: the UK Interstitial Lung Disease-Long COVID Study (UKILD-Long COVID)

    , BMJ Open Respiratory Research, Vol: 8, Pages: 1-10, ISSN: 2052-4439

    Introduction The COVID-19 pandemic has led to over 100 million cases worldwide. The UK has had over 4 million cases, 400 000 hospital admissions and 100 000 deaths. Many patients with COVID-19 suffer long-term symptoms, predominantly breathlessness and fatigue whether hospitalised or not. Early data suggest potentially severe long-term consequence of COVID-19 is development of long COVID-19-related interstitial lung disease (LC-ILD).Methods and analysis The UK Interstitial Lung Disease Consortium (UKILD) will undertake longitudinal observational studies of patients with suspected ILD following COVID-19. The primary objective is to determine ILD prevalence at 12 months following infection and whether clinically severe infection correlates with severity of ILD. Secondary objectives will determine the clinical, genetic, epigenetic and biochemical factors that determine the trajectory of recovery or progression of ILD. Data will be obtained through linkage to the Post-Hospitalisation COVID platform study and community studies. Additional substudies will conduct deep phenotyping. The Xenon MRI investigation of Alveolar dysfunction Substudy will conduct longitudinal xenon alveolar gas transfer and proton perfusion MRI. The POST COVID-19 interstitial lung DiseasE substudy will conduct clinically indicated bronchoalveolar lavage with matched whole blood sampling. Assessments include exploratory single cell RNA and lung microbiomics analysis, gene expression and epigenetic assessment.Ethics and dissemination All contributing studies have been granted appropriate ethical approvals. Results from this study will be disseminated through peer-reviewed journals.Conclusion This study will ensure the extent and consequences of LC-ILD are established and enable strategies to mitigate progression of LC-ILD.

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