Results 91 to 100 of about 87,019 (296)

Epigenetic Chromatin Silencing: Bistability and Front Propagation

, 2007
The role of post-translational modification of histones in eukaryotic gene regulation is well recognized. Epigenetic silencing of genes via heritable chromatin modifications plays a major role in cell fate specification in higher organisms.
Alberts B, Allis C D, Anirvan M Sengupta, Arkin A, Bi X, Donze D, Fall C P, Gilbert S, Lodish H, Mohammad Sedighi, Ptashne M, Raser J M, Singer M S, Stillman B   +13 more
core   +1 more source

Emerging roles of telomeric chromatin alterations in cancer [PDF]

, 2019
Telomeres, the nucleoprotein structures that cap the ends of eukaryotic chromosomes, play important and multiple roles in tumorigenesis. Functional telomeres need the establishment of a protective chromatin structure based on the interplay between the ...
Biroccio, Annamaria, Cacchione, Stefano, Rizzo, Angela   +2 more
core   +1 more source

Integrative Omics Reveal Female‐Specific Benefits of p16+ Cell Clearance in Aging Mice

Advanced Science, EarlyView.
Aging causes accumulation of p16⁺ senescent cells that promote inflammation and dysfunction. Multi‐omics analyses reveal striking sex differences in senescent cell burden and clearance: females accumulate more p16⁺ cells, especially in the liver, and their removal rejuvenates molecular and functional profiles.
Yao Lin, Boshi Wang, Mengling Huang, Justina C. Wolters, Marco Demaria   +4 more
wiley   +1 more source

Sonoepigenetic Modification Mechanoprimes Early Osteogenic Commitment in Mesenchymal Stem Cells

Advanced Science, EarlyView.
Brief 10 min bursts of high frequency (10 MHz) vibrational mechanostimulation to stem cells are shown to activate their epigenetic machinery to condition their differentiation down an osteogenic lineage within just 3 days, which is much earlier than that with other forms of mechanostimuli, and without requiring any biochemical additives. Abstract Cells
Lizebona A. Ambattu, Blanca del Rosal, Carmelo Ferrai, Leslie Y. Yeo   +3 more
wiley   +1 more source

Alterations of Nuclear Architecture and Epigenetic Signatures during African Swine Fever Virus Infection

Viruses, 2015
Viral interactions with host nucleus have been thoroughly studied, clarifying molecular mechanisms and providing new antiviral targets. Considering that African swine fever virus (ASFV) intranuclear phase of infection is poorly understood, viral ...
Margarida Simões, José Rino, Inês Pinheiro, Carlos Martins, Fernando Ferreira   +4 more
doaj   +1 more source

SWI/SNF-like chromatin remodeling factor Fun30 supports point centromere function in S. cerevisiae [PDF]

, 2011
Budding yeast centromeres are sequence-defined point centromeres and are, unlike in many other organisms, not embedded in heterochromatin. Here we show that Fun30, a poorly understood SWI/SNF-like chromatin remodeling factor conserved in humans ...
Anna T. Vetter, Beth A. Sullivan, Delphine Theodorou, Edoardo Petrini, Felix Krueger, J. Ross Miller, Konrad Paszkiewicz, Margaret R. Crawford, Mickaël Durand-Dubief, Nicholas A. Kent, Patrick Varga-Weisz, Rachael R. Harris, Rosa Maria Correra, William Ryan Will   +13 more
core   +4 more sources

The interaction of the von Hippel-Lindau tumor suppressor and heterochromatin protein 1 [PDF]

Archives of Biochemistry and Biophysics, 2012
Inactivation of the von Hippel-Lindau (VHL) tumor suppressor is associated with renal carcinoma, hemangioblastoma and pheochromocytoma. The VHL protein is a component of a ubiquitin ligase complex that ubiquitinates and degrades hypoxia inducible factor-α (HIF-α). Degradation of HIF-α by VHL is proposed to suppress tumorigenesis and tumor angiogenesis.
Yanlai Lai, Meihua Song, Kevin Hakala, Susan T. Weintraub, Yuzuru Shiio   +4 more
openalex   +4 more sources

Defining heterochromatin in C. elegans through genome-wide analysis of the heterochromatin protein 1 homolog HPL-2 [PDF]

Genome Research, 2014
Formation of heterochromatin serves a critical role in organizing the genome and regulating gene expression. In most organisms, heterochromatin flanks centromeres and telomeres. To identify heterochromatic regions in the heavily studied model C. elegans, which possesses holocentric chromosomes with dispersed centromeres, we analyzed the genome-wide ...
Garrigues, Jacob M, Sidoli, Simone, Garcia, Benjamin A, Strome, Susan   +3 more
openaire   +4 more sources

Geometrically Encoded Positioning of Introns, Intergenic Segments, and Exons in the Human Genome

Advanced Science, EarlyView.
This study introduces a new hypothesis: exons, introns, and intergenic segments are non‐random projections of the functional layers of 3D structure of chromatin packing domains. Evidence is presented that this “geometric code” may encode volumetric structure, reconciling epigenetic patterns, correlates with oncogenic mutations, acting as a potential ...
Luay M. Almassalha, Kyle L. MacQuarrie, Marcelo Carignano, Cody L. Dunton, Ruyi Gong, Joe Ibarra, Lucas M. Carter, Wing Shun Li, Rikkert Nap, Parambir S. Dulai, Igal Szleifer, Vadim Backman   +11 more
wiley   +1 more source

Deacetylation induced nuclear condensation of HP1γ promotes multiple myeloma drug resistance

Nature Communications, 2023
The molecular mechanisms underlying acquired chemoresistance to proteasome inhibitors (PIs) in multiple myeloma (MM) remain to be explored. Here, the authors highlight the role of heterochromatin protein 1 gamma as a potential target for overcoming ...
Xin Li, Sheng Wang, Ying Xie, Hongmei Jiang, Jing Guo, Yixuan Wang, Ziyi Peng, Meilin Hu, Mengqi Wang, Jingya Wang, Qian Li, Yafei Wang, Zhiqiang Liu   +12 more
doaj   +1 more source