Since their discovery in 2004, histone demethylases have emerged as key regulators of chromatin. Recent studies have started to reveal the interconnections between histone demethylases and signaling pathways, suggesting that this interplay drives fundamental biological processes. Here, we summarize the different families and subfamilies of histone demethylases and the insights into the biological roles of these enzymes that have been provided by the analysis of mutant animals. We then review recent work linking demethylases and signaling pathways. These studies suggest that demethylase activities are a component of the critical connections that enable environmental signals to modulate the epigenetic landscape of a cell. A greater mechanistic understanding of the network of signals that control chromatin states during normal cellular processes, together with a better understanding of the ways that epigenetic alterations lead to uncontrolled cell proliferation, might help in the design of effective tools for cancer therapy.
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http://dx.doi.org/10.1515/bmc-2012-0031 | DOI Listing |
Front Immunol
January 2025
Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan, China.
Background: Chimeric antigen receptor T (CAR-T) cell therapy is more effective in relapsed or refractory diffuse large B cell lymphoma (DLBCL) than other therapies, but a high proportion of patients relapse after CAR-T cell therapy owing to antigen escape, limited persistence of CAR-T cells, and immunosuppression in the tumor microenvironment. CAR-T cell exhaustion is a major cause of relapse. Epigenetic modifications can regulate T cell activation, maturation and depletion; they can be applied to reduce T cell depletion, improve infiltration, and promote memory phenotype formation to reduce relapse after CAR-T cell therapy.
View Article and Find Full Text PDFBiomolecules
December 2024
Department of Clinical and Specialist Sciences (DISCO), Università Politecnica delle Marche, 60131 Ancona, Italy.
Epigenetics encompasses reversible and heritable genomic changes in histones, DNA expression, and non-coding RNAs that occur without modifying the nucleotide DNA sequence. These changes play a critical role in modulating cell function in both healthy and pathological conditions. Dysregulated epigenetic mechanisms are implicated in various diseases, including cardiovascular disorders, neurodegenerative diseases, obesity, and mainly cancer.
View Article and Find Full Text PDFMol Genet Genomic Med
January 2025
Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Background: X-linked intellectual disability (XLID) is a genetically heterogeneous disorder that results in cognitive impairment and developmental delays. Mutations in the KDM5C gene have been identified as a causative factor in XLID. This study aimed to identify novel variants associated with XLID and to investigate the clinical and genetic characteristics of XLID patients with mutations in the KDM5C gene.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.
Lysine demethylases (KDMs) catalyze the oxidative removal of the methyl group from histones using earth-abundant iron and the metabolite 2-oxoglutarate (2OG). KDMs have emerged as master regulators of eukaryotic gene expression and are novel drug targets; small-molecule inhibitors of KDMs are in the clinical pipeline for the treatment of human cancer. Yet, mechanistic insights into the functional heterogeneity of human KDMs are limited, necessitating the development of chemical probes for precision targeting.
View Article and Find Full Text PDFCell Commun Signal
January 2025
School of Basic Medical Sciences, Hubei University of Science and Technology, Hubei, 437000, China.
Autophagy dysfunction is associated with changes in autophagy-related genes. Various factors are connected to autophagy, and the mechanism regulating autophagy is highly complicated. Epigenetic changes, such as aberrant expression of histone demethylase, are actively associated not only with oncogenesis but also with inflammatory responses.
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