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http://dx.doi.org/10.1016/0020-7519(83)90041-3 | DOI Listing |
Nat Med
January 2025
Department of Medicine, Memorial Sloan Kettering Cancer Center, New York City, NY, USA.
Nearly all pancreatic adenocarcinomas (PDAC) are genomically characterized by KRAS exon 2 mutations. Most patients with PDAC present with advanced disease and are treated with cytotoxic therapy. Genomic biomarkers prognostic of disease outcomes have been challenging to identify.
View Article and Find Full Text PDFEMBO J
January 2025
Department of Oncology, The University of Oxford, Oxford, OX3 7DQ, UK.
Hypoxia is a common feature of solid tumors that has previously been linked to resistance to radiotherapy and chemotherapy, and more recently to immunotherapy. In particular, hypoxic tumors exclude T cells and inhibit their activity, suggesting that tumor cells acquire a mechanism to evade T-cell recognition and killing. Our analysis of hypoxic tumors indicates that hypoxia downregulates the expression of MHC class I and its bound peptides (i.
View Article and Find Full Text PDFPLoS Comput Biol
January 2025
Genesupport, Avenue de Sévelin 18, Lausanne, Switzerland.
Catalysis and specifically autocatalysis are the quintessential building blocks of life. Yet, although autocatalytic networks are necessary, they are not sufficient for the emergence of life-like properties, such as replication and adaptation. The ultimate and potentially fatal threat faced by molecular replicators is parasitism; if the polymerase error rate exceeds a critical threshold, even the fittest molecular species will disappear.
View Article and Find Full Text PDFPLoS One
January 2025
Division of Cell- and Neurobiology, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden.
Emerging evidence suggests that fusion of cancer cells with leucocytes, such as macrophages, plays a significant role in cancer metastasis and results in tumor hybrid cells that acquire resistance to chemo- and radiation therapy. However, the precise mechanisms behind the leukocyte-cancer cell fusion remain unclear. The present in vitro study explores the presence of fusion between the monocyte cell line (THP-1) and the breast cancer cell line (MCF-7) in relation to the expression of CD36 and phosphatidylserine with and without treatment of these cells with ionizing radiation.
View Article and Find Full Text PDFPLoS One
January 2025
National Institute of Public Health of Mexico, Center for Evaluation and Surveys Research, Cuernavaca, Morelos, Mexico.
Introduction: Tackling the inertia of growing threat of antimicrobial resistance (AMR) requires changes in how antibiotics are prescribed and utilized. The monitoring of antimicrobial prescribing in hospitals is a critical component in optimizing antibiotic use. Point prevalence surveys (PPSs) enable the surveillance of antibiotic prescribing at the patient level in small hospitals that lack the resources to establish antimicrobial stewardship programs (ASP).
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