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Journal articleNoakes FF, Smitten KL, Maple LEC, et al., 2024,
Phenazine cations as anticancer theranostics
, Journal of the American Chemical Society, Vol: 146, Pages: 12836-12849, ISSN: 0002-7863The biological properties of two water-soluble organic cations based on polypyridyl structures commonly used as ligands for photoactive transition metal complexes designed to interact with biomolecules are investigated. A cytotoxicity screen employing a small panel of cell lines reveals that both cations show cytotoxicity toward cancer cells but show reduced cytotoxicity to noncancerous HEK293 cells with the more extended system being notably more active. Although it is not a singlet oxygen sensitizer, the more active cation also displayed enhanced potency on irradiation with visible light, making it active at nanomolar concentrations. Using the intrinsic luminescence of the cations, their cellular uptake was investigated in more detail, revealing that the active compound is more readily internalized than its less lipophilic analogue. Colocalization studies with established cell probes reveal that the active cation predominantly localizes within lysosomes and that irradiation leads to the disruption of mitochondrial structure and function. Stimulated emission depletion (STED) nanoscopy and transmission electron microscopy (TEM) imaging reveal that treatment results in distinct lysosomal swelling and extensive cellular vacuolization. Further imaging-based studies confirm that treatment with the active cation induces lysosomal membrane permeabilization, which triggers lysosome-dependent cell-death due to both necrosis and caspase-dependent apoptosis. A preliminary toxicity screen in the Galleria melonella animal model was carried out on both cations and revealed no detectable toxicity up to concentrations of 80 mg/kg. Taken together, these studies indicate that this class of synthetically easy-to-access photoactive compounds offers potential as novel therapeutic leads.
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Journal articlePhilip K, Buttery S, Bowen S, et al., 2024,
Singing for lung health in COPD: a multicentre randomised controlled trial of online delivery
, BMJ Open Respiratory Research, Vol: 11, ISSN: 2052-4439Background Singing for lung health (SLH) is an arts-based breathing control and movement intervention for people with long-term respiratory conditions, intended to improve symptoms and quality of life. Online, remotely delivered programmes might improve accessibility; however, no previous studies have assessed the effectiveness of this approach.Methods We conducted an assessor-blind randomised controlled trial comparing the impact of 12 weeks of once-weekly online SLH sessions against usual care on health-related quality of life, assessed using the RAND 36-Item Short Form Health Survey (SF-36) Mental Health Composite (MHC) and Physical Health Composite (PHC) scores.Results We enrolled 115 people with stable chronic obstructive pulmonary disease (COPD), median (IQR) age 69 (62–74), 56.5% females, 80% prior pulmonary rehabilitation, Medical Research Council dyspnoea scale 4 (3–4), forced expiratory volume in 1 s % predicted 49 (35–63). 50 participants in each arm completed the study. The intervention arm experienced improvements in physical but not mental health components of RAND SF-36; PHC (regression coefficient (95% CI): 1.77 (95% CI 0.11 to 3.44); p=0.037), but not MHC (0.86 (95% CI −1.68 to 3.40); p=0.504). A prespecified responder analysis based on achieving a 10% improvement from baseline demonstrated a response rate for PHC of 32% in the SLH arm and 12.7% for usual care (p=0.024). A between-group difference in responder rate was not found in relation to the MHC (19.3% vs 25.9%; p=0.403).Discussion and conclusion A 12-week online SLH programme can improve the physical component of quality of life for people with COPD, but the overall effect is relatively modest compared with the impact seen in research using face-to-face group sessions. Further work on the content, duration and dose of online interventions may be useful.Trial registration number NCT04034212.
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Conference paperDoffman S, Dosanjh D, Sadiq M, et al., 2024,
Phase 1 Safety and Efficacy of AZD8630/AMG 104 Inhaled Anti-TSLP in Healthy Volunteers and Patients With Asthma on Medium-High Dose Inhaled Corticosteroid (ICS) and Long-Acting Beta-agonist (LABA) With Elevated Baseline Fractional Exhaled Nitric Oxide (FeNO)
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperOwen CA, Zhou X, Sobande O, et al., 2024,
A First-in-human Study in Healthy Volunteers Investigating the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of AZD5055, A Novel Oral Porcupine Inhibitor Under Development as a Treatment for Pulmonary Fibrosis
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperSmall P, Rudd M, Chung KF, 2024,
Cough-omics: Quantifying the Variability and Predictability of Daily Cough Countsin Persistent Coughers
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperKhalaf Z, Saglani S, Bloom CI, 2024,
The Impact of Routine Asthma Reviews: A UK Population-based Cohort
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Journal articleBloom CI, 2024,
Reply: Asthma and cardiovascular disease: the strength of triangulation
, EUROPEAN RESPIRATORY JOURNAL, Vol: 63, ISSN: 0903-1936 -
Conference paperDixey P, Kermani NZ, Raby K, et al., 2024,
Enose - Derived Response Clusters in Severe Asthmatics Treated With Anti-IL5/5R Biologics
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperRaby K, Dixey P, Versi A, et al., 2024,
Mechanisms of Nasal Epithelial Cell Permeability in Eosinophilic Severe Asthma: Effect of Anti-IL5R Therapy
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperRitchie AI, Hoffman EA, Allinson JP, et al., 2024,
Structural Predictors of Lung Function Decline in the British Early COPD Network (BEACON) Cohort
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperBloom CI, Sundaram V, Hubbard RB, et al., 2024,
Association of Cardiovascular Disease, Pulmonary Embolism, and Pneumonia With Inhaled Corticosteroid Use in Asthma: A UK Cohort Study
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperFiorenzo E, Kumar K, Kebadze T, et al., 2024,
Clinically relevant β2-agonists induce and augment rhinovirus-induction of asthma- relevant pro-inflammatory mediators in human bronchial epithelial cells
, International Conference of the American-Thoracic-Society (ATS), Publisher: American Thoracic Society, ISSN: 1073-449X -
Conference paperRaby K, Koranteng JB, Dixey P, et al., 2024,
Mepolizumab Depleted Blood Eosinophils Display a Reduced Adhesion Phenotype
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperKimura H, Kermani NZ, Adcock IM, et al., 2024,
Association of CC16 Expression in the Airways With Signature Expression of Multi-omics Data
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperPyle CJ, Patel ND, Edwards MR, et al., 2024,
A Rhinovirus VP0 Vaccine Induces Cross-reactive Type 1 Immunity and Promotes Lymphocyte Activation and Maturation
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperChoy D, Nazarova E, Grimbaldeston M, et al., 2024,
A Stop-gain in FUT2 Associates With Several COPD Related Phenotypes and Clinical Outcomes
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperMar J, Dugger D, Chen H, et al., 2024,
Longitudinal Effects of Experimental Rhinovirus Challenge on Airway Phenotype in Chronic Obstructive Pulmonary Disease
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperBell J, Graul E, Nordon C, et al., 2024,
EXACOS CARBON: Describing the Greenhouse Gas Emissions of Healthcare Resource Utilization by Frequency and Severity of COPD Exacerbation in England
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Journal articleCass SP, Nicolau DV, Baker JR, et al., 2024,
Coordinated nasal mucosa-mediated immunity accelerates recovery from COVID-19
, ERJ OPEN RESEARCH, Vol: 10 -
Conference paperThillai M, Oldham J, Ruggiero A, et al., 2024,
Deep Learning-based Segmentation of CT Scans Predicts Disease Progression and Mortality in IPF
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X
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