Results 81 to 90 of about 603,291 (199)

Targeting CRM1 for Progeria Syndrome Therapy

Aging Cell, EarlyView.
Pharmacological inhibition of CRM1 mediated by selinexor, the first‐in‐class selective inhibitor of CRM1, mitigates the senescent phenotype of Hutchinson‐Gilford progeria syndrome (HGPS) patients‐derived primary fibroblasts. Treatment of HGPS fibroblasts with selinexor promotes the clearances of progerin via autophagy activation, restores the ...
Adriana Soto‐Ponce, Marlon De Ita, Susana Castro‐Obregón, Diego Cortez, Yosef Landesman, Jonathan J. Magaña, Susana Gonzalo, Tania Zavaleta, Angelica Soberano‐Nieto, Juan Unzueta, Isabel Arrieta‐Cruz, Porfirio Nava, Aurora Candelario‐Martínez, Ian García‐Aguirre, Bulmaro Cisneros   +14 more
wiley   +1 more source

Deletion of HP1γ in cardiac myocytes affects H4K20me3 levels but does not impact cardiac growth

Epigenetics & Chromatin, 2018
Background Heterochromatin, which is formed when tri-methyl lysine 9 of histone H3 (H3K9me3) is bound by heterochromatin 1 proteins (HP1s), plays an important role in differentiation and senescence by silencing cell cycle genes.
Kyohei Oyama, Danny El-Nachef, Chen Fang, Hidemi Kajimoto, Jeremy P. Brown, Prim B. Singh, W. Robb MacLellan   +6 more
doaj   +1 more source

Reduction of DNA Topoisomerase Top2 Reprograms the Epigenetic Landscape and Extends Health and Life Span Across Species

Aging Cell, EarlyView.
This study demonstrates that reducing the enzyme topoisomerase Top2 or its mammalian homolog TOP2B promotes longevity across multiple species, including yeast, worms, and mice. At the cellular/molecular level, TOP2B reduction mitigates the major cellular aging hallmarks such as epigenetic alterations, cell senescence, lysosomal biogenesis, and ...
Man Zhu, Meng Ma, Lunan Luo, Feiyang Li, Jiashun Zheng, Yan Pan, Lu Yang, Ying Xiao, Ziyan Wang, Bo Xian, Yi Zheng, Hao Li, Jing Yang   +12 more
wiley   +1 more source

Repo-Man/PP1 regulates heterochromatin formation in interphase

Nature Communications, 2017
Repo-Man is a chromosome-binding subunit of protein phosphatase 1 to regulate mitosis. Here, de Castro and colleagues show that Repo-Man also regulates heterochromatin during interphase, and regulates gene repression and chromatin organization.
Inês J. de Castro, James Budzak, Maria L. Di Giacinto, Lorena Ligammari, Ezgi Gokhan, Christos Spanos, Daniela Moralli, Christine Richardson, Jose I. de las Heras, Silvia Salatino, Eric C. Schirmer, Katharine S. Ullman, Wendy A. Bickmore, Catherine Green, Juri Rappsilber, Sarah Lamble, Martin W. Goldberg, Veronica Vinciotti, Paola Vagnarelli   +18 more
doaj   +1 more source

Compressive Forces Induce Epigenetic Activation of Aged Human Dermal Fibroblasts Through ERK Signaling Pathway

Aging Cell, EarlyView.
Direct activation and rejuvenation of aged fibroblasts through the application of mechanical forces in a 3D spheroid culture model. The ERK signaling pathway was revealed as a key underlying mechanism. ABSTRACT Age‐related changes in human dermal fibroblasts (HDFs) contribute to impaired wound healing and skin aging.
Hui Liu, Luezhen Yuan, Lucrezia Baldi, Trinadha Rao Sornapudi, G. V. Shivashankar   +4 more
wiley   +1 more source

Heterochromatin Protein 1: A Multiplayer in Cancer Progression. [PDF]

Cancers (Basel), 2022
Jeon YH, Kim GW, Kim SY, Yi SA, Yoo J, Kim JY, Lee SW, Kwon SH.   +7 more
europepmc   +1 more source

Compartmentalization of HP1 Proteins in Pluripotency Acquisition and Maintenance

Stem Cell Reports, 2018
Summary: The heterochromatin protein 1 (HP1) family is involved in various functions with maintenance of chromatin structure. During murine somatic cell reprogramming, we find that early depletion of HP1γ reduces the generation of induced pluripotent ...
Nur Zafirah Zaidan, Kolin J. Walker, Jaime E. Brown, Leah V. Schaffer, Mark Scalf, Michael R. Shortreed, Gopal Iyer, Lloyd M. Smith, Rupa Sridharan   +8 more
doaj  

Quantitative FLIM-FRET Microscopy to Monitor Nanoscale Chromatin Compaction In Vivo Reveals Structural Roles of Condensin Complexes

Cell Reports, 2017
How metazoan genomes are structured at the nanoscale in living cells and tissues remains unknown. Here, we adapted a quantitative FRET (Förster resonance energy transfer)-based fluorescence lifetime imaging microscopy (FLIM) approach to assay nanoscale ...
David Llères, Aymeric P. Bailly, Aurélien Perrin, David G. Norman, Dimitris P. Xirodimas, Robert Feil   +5 more
doaj   +1 more source

Non‐canonical nitric oxide signalling and DNA methylation: Inflammation induced epigenetic alterations and potential drug targets

British Journal of Pharmacology, EarlyView.
Abstract DNA methylation controls DNA accessibility to transcription factors and other regulatory proteins, thereby affecting gene expression and hence cellular identity and function. As epigenetic modifications control the transcriptome, epigenetic dysfunction is strongly associated with pathological conditions and ageing.
Christopher H. Switzer
wiley   +1 more source

Chromatin organization changes during the establishment and maintenance of the postmitotic state

Epigenetics & Chromatin, 2017
Background Genome organization changes during development as cells differentiate. Chromatin motion becomes increasingly constrained and heterochromatin clusters as cells become restricted in their developmental potential.
Yiqin Ma, Laura Buttitta
doaj   +1 more source