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B-cell lymphoma 2-associated athanogene-3 (Bag3) is expressed in all animal species, with Bag3 levels being most prominent in the heart, the skeletal muscle, the central nervous system, and in many cancers. Preclinical studies of Bag3 biology have focused on animals that have developed compromised cardiac function; however, the present studies were performed to identify the pathways perturbed in the heart even before the occurrence of clinical signs of dilatation and failure of the heart. These studies show that hearts carrying variants that knockout one allele of have significant alterations in multiple cellular pathways including apoptosis, autophagy, mitochondrial homeostasis, and the inflammasome.
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http://dx.doi.org/10.1016/j.jacbts.2022.12.013 | DOI Listing |
Aging Cell
September 2025
Department of Biochemistry and Molecular Biology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA.
While BAG3 has been identified as a causative gene for dilated cardiomyopathy, the major pathological events in BAG3-related cardiomyopathy that could be targeted for therapeutic benefit remain to be discovered. Here, we aim to uncover novel pathological events through genetic studies in a zebrafish bag3 cardiomyopathy model. Given the known cardioprotective effects of mtor inhibition and the fact that transcription factor EB (tfeb) encodes a direct downstream phosphorylation target of mTOR signaling, we generated a cardiomyocyte-specific transgenic line overexpressing tfeb (Tg[cmlc2:tfeb]).
View Article and Find Full Text PDFNeural Regen Res
September 2025
Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA (Sweeney N, Kim TY, Fu H).
Medicina (Kaunas)
July 2025
Department of Biochemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, 58140 Siva, Turkey.
: A thorough comprehension of the essential molecules and related processes underlying the carcinogenesis, proliferation, and recurrence of acute myeloid leukemia (AML) is crucial. This study aimed to investigate the expression levels, diagnostic and prognostic significance and biological roles of Bcl-2-associated athanogene 4 (BAG4) in AML carcinogenesis. : Gene expression profiles were analyzed using publicly available datasets, particularly GSE9476 and TCGA, using tools such as GEO2R, GEPIA2, UALCAN and TIMER2.
View Article and Find Full Text PDFFront Immunol
August 2025
Department of Pediatrics, Hematology and Oncology, Second Hospital of Hebei Medical University, Shijiazhuang, China.
Background: Mitophagy has been implicated in the pathogenesis of acute myeloid leukemia (AML), yet its precise molecular mechanisms remain poorly understood. Understanding the roles of mitophagy-related genes (MRGs) may provide new insights into AML classification, prognosis, and therapeutic response.
Methods: We analyzed 72 MRGs using three independent AML datasets (TCGA-LAML, GSE24395, and GSE146173).
Introduction: Genetic variants are the leading cause of dilated cardiomyopathy (DCM). Data on genetic testing in DCM from Central European populations are scarce.
Objectives: We sought to determine the genetic architecture of DCM in Poland and assess its influence on clinical characteristics and prognosis.