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The histone demethylase KDM5C enhances the sensitivity of acute myeloid leukemia cells to lenalidomide by stabilizing cereblon.
Cell Mol Biol Lett
January 2025
Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou Key Laboratory of Drug Research for Prevention and Treatment of Hyperlipidemic Diseases, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
Background: The protein cereblon (CRBN) mediates the antileukemia effect of lenalidomide (Len). Len binds to CRBN, recruits IKZF1/IKZF3, and promotes their ubiquitination and degradation, through which Len exhibits its antileukemia and antimyeloma activity. Therefore, the protein level of CRBN might affect the antiproliferative effect of Len.
View Article and Find Full Text PDFAltered mitochondrial unfolded protein response and FGF21 secretion in MASLD progression and the effect of exercise intervention.
Sci Rep
January 2025
School of Sports and Health, Nanjing Sport Institute, Nanjing, China.
A high-calorie diet and lack of exercise are the most important risk factors contributing to metabolic dysfunction-associated steatotic liver disease (MASLD) initiation and progression. The precise molecular mechanisms of mitochondrial function alteration during MASLD development remain to be fully elucidated. In this study, a total of 60 male C57BL/6J mice were maintained on a normal or amylin liver NASH (AMLN) diet for 6 or 10 weeks.
View Article and Find Full Text PDFVariable peptide processing of a Conus (Asprella) neocostatus α-conotoxin generates bioactive toxiforms that are potent against distinct nicotinic acetylcholine receptor subtypes.
Biochem Pharmacol
January 2025
The Marine Science Institute, University of the Philippines Diliman, Quezon City 1101, Philippines. Electronic address:
Conusvenoms are composed of peptides that are commonly post-translationally modified, increasing their chemical diversity beyond what is encoded in the genome and enhancing their potency and selectivity. This study describes how PTMs alter an α-conotoxin's selectivity for specific nAChR subtypes. Venom from the cone snailConus(Asprella)neocostatuswas fractionated using high-performance liquid chromatography and tested using a behavioral intracranial mouse bioassay and a cholinergic calcium imaging assay using SH-SY5Y neuroblastoma cells.
View Article and Find Full Text PDFThe Shab family potassium channels are highly enriched at the presynaptic terminals of human neurons.
J Biol Chem
January 2025
Biochemistry & Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA; Molecular, Cellular & Integrated Neurosciences, Colorado State University, Fort Collins, CO 80523, USA; Cell & Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA. Electronic address:
The Shab family voltage-gated K channels (i.e., Kv2.
View Article and Find Full Text PDFSynthetic mycolates derivatives to decipher protein mycoloylation, a unique post-translational modification in bacteria.
J Biol Chem
January 2025
Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France. Electronic address:
Protein mycoloylation is a newly characterized post-translational modification (PTM) specifically found in Corynebacteriales, an order of bacteria that includes numerous human pathogens. Their envelope is composed of a unique outer membrane, the so-called mycomembrane made of very-long chain fatty acids, named mycolic acids. Recently, some mycomembrane proteins including PorA have been unambiguously shown to be covalently modified with mycolic acids in the model organism Corynebacterium glutamicum by a mechanism that relies on the mycoloyltransferase MytC.
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