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Novel Anti-Microbial/Anti-Inflammatory Combination Improves Clinical Outcome of Bacillus cereus Endophthalmitis.
Invest Ophthalmol Vis Sci
January 2025
Department of Ophthalmology, Dean McGee Eye Institute, Oklahoma City, Oklahoma, United States.
Purpose: The purpose of this study was to explore the therapeutic potential of the novel combination of Bacillus bacteriophage lysin (PlyB) and a synthetic TLR2/4 inhibitor (oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine, OxPAPC) in the treatment of experimental Bacillus cereus endophthalmitis.
Methods: C57BL/6J mice were injected with 100 colony forming units (CFUs) Bacillus cereus to induce endophthalmitis. Two hours postinfection, groups of mice were treated with either PlyB, PlyB with OxPAPC, or the groups were left untreated to serve as a control.
GNA15 induces drug resistance in B cell acute lymphoblastic leukemia by promoting fatty acid oxidation via activation of the AMPK pathway.
Mol Cell Biochem
January 2025
Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
The prognosis of B cell acute lymphoblastic leukemia (B-ALL) is poor, primarily due to drug resistance and relapse. Ga15, encoded by GNA15, belongs to the G protein family, with G protein-coupled receptors playing a crucial role in multiple biological process. GNA15 has been reported to be involved in various malignancies; however, its potential role in B-ALL remain unknown.
View Article and Find Full Text PDFDecreased neuronal excitability in hypertriglyceridemia hamsters with acute seizures.
Front Neurol
December 2024
Department of Pediatrics, Peking University First Hospital, Beijing, China.
Introduction: Neonatal seizures are the most common clinical manifestation of neurological dysfunction in newborns, with an incidence ranging from 1 to 5‰. However, the therapeutic efficacy of current pharmacological treatments remains suboptimal. This study aims to utilize genetically modified hamsters with hypertriglyceridaemia (HTG) to investigate the effects of elevated triglycerides on neuronal excitability and to elucidate the underlying mechanisms.
View Article and Find Full Text PDFHelicobacter pylori CagA promotes gastric cancer immune escape by upregulating SQLE.
Cell Death Dis
January 2025
Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, State Key Laboratory for Digestive Health, National Clinical Research Center of Digestive Diseases, Beijing Digestive Disease Center, Beijing, 100050, China.
Helicobacter pylori (H. pylori) infection is a well-established risk factor for gastric cancer, primarily due to its virulence factor, cytotoxin-associated gene A (CagA). Although PD-L1/PD-1-mediated immune evasion is critical in cancer development, the impact of CagA on PD-L1 regulation remains unclear.
View Article and Find Full Text PDFDefining proteoform-specific interactions for drug targeting in a native cell signalling environment.
Nat Chem
January 2025
Physical and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, Oxford, UK.
Understanding the dynamics of membrane protein-ligand interactions within a native lipid bilayer is a major goal for drug discovery. Typically, cell-based assays are used, however, they are often blind to the effects of protein modifications. In this study, using the archetypal G protein-coupled receptor rhodopsin, we found that the receptor and its effectors can be released directly from retina rod disc membranes using infrared irradiation in a mass spectrometer.
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