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Science
January 2025
Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA.
Single-cell decisions made in complex environments underlie many bacterial phenomena. Image-based transcriptomics approaches offer an avenue to study such behaviors, yet these approaches have been hindered by the massive density of bacterial messenger RNA. To overcome this challenge, we combined 1000-fold volumetric expansion with multiplexed error-robust fluorescence in situ hybridization (MERFISH) to create bacterial-MERFISH.
View Article and Find Full Text PDFAnnu Rev Pharmacol Toxicol
January 2025
Institute of Digestive Health Research (IRSD), Toulouse University, INSERM 1022, INRAe, ENVT, University of Toulouse III Paul Sabatier, Toulouse, France;
Chronic inflammation is a common trait in the pathogenesis of several diseases of the gut, including inflammatory bowel disease and celiac disease. Control of the inflammatory response is crucial in these pathologies to avoid tissue destruction and loss of intestinal function. Over the last 50 years, the identification of the mechanisms and mediators involved in the acute phase of the inflammatory response, which is characterized by massive leukocyte recruitment, has led to a number of therapeutic options.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Department of Immunology and Microbiology, Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510000, China.
The LIM-domain-only protein LMO2 interacts with LDB1 in context-dependent multiprotein complexes and plays key roles in erythropoiesis and T cell leukemogenesis, but whether they have any roles in B cells is unclear. Through a CRISPR/Cas9-based loss-of-function screening, we identified LMO2 and LDB1 as factors for class switch recombination (CSR) in murine B cells. LMO2 contributes to CSR at least in part by promoting end joining of DNA double-strand breaks (DSBs) and inhibiting end resection.
View Article and Find Full Text PDFMetab Brain Dis
January 2025
Hepato-Neuro Laboratory, Centre Hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal, 900, Rue Saint-Denis - Pavillon R, R08.422, Montréal (Québec), H2X 0A9, Canada.
Sarcopenia and hepatic encephalopathy (HE) are complications of chronic liver disease (CLD), which negatively impact clinical outcomes. Hyperammonemia is considered to be the central component in the pathogenesis of HE, however ammonia's toxic effects have also been shown to impinge on extracerebral organs including the muscle. Our aim was to investigate the effect of attenuating hyperammonemia with ornithine phenylacetate (OP) on muscle mass loss and associated molecular mechanisms in rats with CLD.
View Article and Find Full Text PDFSupport Care Cancer
January 2025
Research Center for Traditional Medicine and History of Medicine, Department of Persian Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Leukemia is a prevalent cancer that severely affects children, and standard chemotherapy often leads to severe gastrointestinal symptoms and neutropenia. This study aimed to discover alternative treatments to prevent neutropenia in pediatric leukemia patients and minimize chemotherapy-related complications. This randomized, placebo-controlled trial was conducted on 52 children between the ages of 3 and 18 years who were suffering from acute leukemia and undergoing chemotherapy.
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