Mesenchymal stem cells (MSCs) present in multiple tissues can self-renew and differentiate into multiple lineages including the bone, cartilage, muscle, cardiac tissue, and connective tissue. Key events, including cell proliferation, lineage commitment, and MSC differentiation, are ensured by precise gene expression regulation. ATP-dependent chromatin alteration is one form of epigenetic modifications that can regulate the transcriptional level of specific genes by utilizing the energy from ATP hydrolysis to reorganize chromatin structure. ATP-dependent chromatin remodeling complexes consist of a variety of subunits that together perform multiple functions in self-renewal and lineage specification. This review highlights the important role of ATP-dependent chromatin remodeling complexes and their different subunits in modulating MSC fate determination and discusses the proposed mechanisms by which ATP-dependent chromatin remodelers function.
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http://dx.doi.org/10.1155/2020/8839703 | DOI Listing |
Biochem Biophys Res Commun
December 2024
State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Protein Science, and College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin, 300071, China. Electronic address:
Mammalian SWI/SNF (mSWI/SNF) ATP-dependent chromatin remodeling complexes play critical roles in regulating gene expression and DNA accessibility, and more than 20 % of cancers have mutations in genes encoding chromatin remodeling complexes. The mSWI/SNF family comprises three distinct classes: canonical BAF (cBAF), PBAF, and non-canonical BAF (ncBAF). While the structures of cBAF and PBAF have been resolved by using cryo-electron microscopy (cryo-EM), the modular organization and assembly mechanism of ncBAF remain poorly understood.
View Article and Find Full Text PDFFront Pharmacol
December 2024
Harbin Medical University and Department of Pharmacology (State Key Laboratory of Frigid Zone Cardiovascular Diseases, Ministry of Science and Technology; State Key Labratoray-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education) at College of Pharmacy, Harbin, China.
Background: Transient Receptor Potential Melastatin 4 (TRPM4), a non-selective cation channel, plays a critical role in cardiac conduction abnormalities. Brg1, an ATP-dependent chromatin remodeler, is essential for regulating gene expression in both heart development and disease. Our previous studies demonstrated Brg1 impacted on cardiac sodium/potassium channels and electrophysiological stability, its influence on TRPM4 expression and function remained unexplored.
View Article and Find Full Text PDFAnnu Rev Biophys
December 2024
Department of Biochemistry and Biophysics, University of California, San Francisco, California, USA; email:
In this article I review mechanisms that underpin epigenetic inheritance of CpG methylation and histone H3 lysine 9 methylation (H3K9me) in chromatin in fungi and mammals. CpG methylation can be faithfully inherited epigenetically at some sites for a lifetime in vertebrates and, remarkably, can be propagated for millions of years in some fungal lineages. Transmission of methylation patterns requires maintenance-type DNA methyltransferases (DNMTs) that recognize hemimethylated CpG DNA produced by replication.
View Article and Find Full Text PDFCurr Opin Genet Dev
December 2024
Gladstone Institute for Data Science and Biotechnology, Gladstone Institutes, San Francisco, CA, USA; Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA. Electronic address:
CCCTC-binding factor (CTCF) is a key regulator of 3D genome organization and transcriptional activity. Beyond its well-characterized role in facilitating cohesin-mediated loop extrusion, CTCF exhibits several cohesin-independent activities relevant to chromatin structure and various nuclear processes. These functions include patterning of nucleosome arrangement and chromatin accessibility through interactions with ATP-dependent chromatin remodelers.
View Article and Find Full Text PDFEur J Med Genet
December 2024
First Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, 650000, China. Electronic address:
The Chromodomain Helicase DNA-binding (CHD) protein family is ATP-dependent chromatin remodeling proteins that utilize energy produced by ATP hydrolysis to regulate chromatin structure and thereby modulate gene expression. The earliest report of a CHD3 gene mutation was by O'Roak, who found it during whole exome sequencing of 189 autism families in 2012. In 2018, Snijders Blok systematically assessed the autosomal dominant neurodevelopmental disorder caused by CHD3 gene damage, known as Snijders Blok-Campeau syndrome (SNIBCPS, OMIM 618205).
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