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Modelling hepatocellular carcinoma microenvironment phenotype to evaluate drug efficacy.
Sci Rep
January 2025
PredictCan Biotechnologies SAS, Biopôle Euromédecine, Grabels, France.
Hepatocellular carcinoma (HCC) is the third most common cause of cancer-related death worldwide. Treating HCC is challenging because of the poor drug effectiveness and the lack of tools to predict patient responses. To resolve these issues, we established a patient-centric spheroid model using HepG2, TWNT-1, and THP-1 co-culture, that mimics HCC phenotype.
View Article and Find Full Text PDFAminoglycoside tolerance in engages translational reprogramming associated with queuosine tRNA modification.
Elife
January 2025
Institut Pasteur, Université Paris Cité, Unité Plasticité du Génome Bactérien, Paris, France.
Article Synopsis
- Tgt enzyme modifies guanine in tRNAs with GUN anticodon to queuosine, which is crucial for bacterial growth under aminoglycoside stress.
- Research highlights the significance of Q34 modification in enhancing decoding efficiency of specific codons (TAT and TAC) during tobramycin exposure.
- Findings suggest that Q34 regulation can lead to translational reprogramming impacting genes like RsxA, crucial for the bacterial response to oxidative stress and antibiotics.
High-Density Lipoprotein Lipid and Protein Cargo and Cholesterol Efflux Capacity Before and After Bariatric Surgery.
Arterioscler Thromb Vasc Biol
January 2025
Department of Medicine, Leon H. Charney Division of Cardiology (S.Z., B.-X.L., A.C., M.F., E.A.F., S.P.H.).
Background: Cholesterol efflux capacity (CEC) of HDL (high-density lipoprotein) is inversely associated with incident cardiovascular events, independent of HDL cholesterol. Obesity is characterized by low HDL cholesterol and impaired HDL function, such as CEC. Bariatric surgery, including Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG), broadly leads to improved cardiovascular outcomes, but impacts on risk factors differ by procedure, with greater improvements in weight loss, blood pressure, and glycemic control after RYGB, but greater improvements in HDL cholesterol and CEC levels after SG.
View Article and Find Full Text PDFSafety of baricitinib in vaccinated patients with severe and critical COVID-19 sub study of the randomised Bari-SolidAct trial.
EBioMedicine
December 2024
Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, Oslo, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Section for Clinical Immunology and Infectious Diseases, Oslo University Hospital Rikshospitalet, Oslo, Norway. Electronic address:
Background: The Bari-SolidAct randomized controlled trial compared baricitinib with placebo in patients with severe COVID-19. A post hoc analysis revealed a higher incidence of serious adverse events (SAEs) among SARS-CoV-2-vaccinated participants who had received baricitinib. This sub-study aimed to investigate whether vaccination influences the safety profile of baricitinib in patients with severe COVID-19.
View Article and Find Full Text PDFInterruption of the visual cycle in a novel animal model induces progressive vision loss resembling Stargardts Disease.
Sci Rep
December 2024
INCI-UPR3212-CNRS, 8 Allée du Général Rouvillois, 67000, Strasbourg, France.
Mutations in the gene ABCA4 coding for photoreceptor-specific ATP-binding cassette subfamily A member 4, are responsible for Stargardts Disease type 1 (STGD1), the most common form of inherited macular degeneration. STGD1 typically declares early in life and leads to severe visual handicap. Abca4 gene-deletion mouse models of STGD1 accumulate lipofuscin, a hallmark of the disease, but unlike the human disease show no or only moderate structural changes and no functional decline.
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