Results 111 to 120 of about 66,266 (300)

MDL‐800–Induced Sirtuin 6 Activation Decreases Age‐Associated Osteoarthritis in Mice

Arthritis &Rheumatology, EarlyView.
Objective Sirtuin 6 (SIRT6) is a nuclear‐localized histone deacetylase that regulates multiple pathways associated with aging. This study aimed to determine whether systemic administration of MDL‐800, a small molecule activator of SIRT6, decreases the severity of age‐associated osteoarthritis (OA) in mice.
Matheus Moreira Perez, Pranay Ramteke, Bahiyah Watson, Owen Haslam, Eirene Choi, Susan Chubinskaya, Mandy J. Peffers, William R. Davis, Jacqueline Shine, Brian O. Diekman, Richard F. Loeser, Theresa A. Freeman, Makarand V. Risbud, John A. Collins   +13 more
wiley   +1 more source

mTert induction in p21-positive cells counteracts capillary rarefaction and pulmonary emphysema

EMBO Reports
Lung diseases develop when telomeres shorten beyond a critical point. We constructed a mouse model in which the catalytic subunit of telomerase (mTert), or its catalytically inactive form (mTertCI), is expressed from the p21Cdkn1a locus.
Larissa Lipskaia, Marielle Breau, Christelle Cayrou, Dmitri Churikov, Laura Braud, Juliette Jacquet, Emmanuelle Born, Charles Fouillade, Sandra Curras-Alonso, Serge Bauwens, Frederic Jourquin, Frederic Fiore, Rémy Castellano, Emmanuelle Josselin, Carlota Sánchez-Ferrer, Giovanna Giovinazzo, Christophe Lachaud, Eric Gilson, Ignacio Flores, Arturo Londono-Vallejo, Serge Adnot, Vincent Géli   +21 more
doaj   +1 more source

Food‐solicitation displays in nestling birds: still begging for answers

Biological Reviews, EarlyView.
ABSTRACT Nestling begging is a key model for understanding animal communication and parent–offspring conflict. Dynamic begging displays are often interpreted as costly, honest signals of need, with honesty maintained by viability costs, as proposed in Godfray's influential signalling model.
Daniel Parejo‐Pulido, Tomás Redondo
wiley   +1 more source

Multimodal Imaging of Live Cells and Tumor Spheroids by a G‐Quadruplex DNA Selective Ru(II)Polypyridyl Probe

Chemistry – A European Journal, EarlyView.
Harnessing the light‑switch properties of Ru‑PDC3, we demonstrate that it binds to G‑quadruplex DNA within the nuclei of living cells where it can act as a probe for real‑time imaging or at higher concentrations/illumination it can act as photosensitizer inducing phototoxicity.
Karmel S. Gkika, Lorcan Holden, Giuseppe Avella, Rhianne C. Curley, Nirod K. Sarangi, Tia E. Keyes   +5 more
wiley   +1 more source

Chromatin features of plant telomeric sequences at terminal versus internal positions

Frontiers in Plant Science, 2014
Epigenetic mechanisms are involved in regulation of crucial cellular processes in eukaryotic organisms. Data on the epigenetic features of plant telomeres and their epigenetic regulation were published mostly for Arabidopsis thaliana, in which the ...
Eva eMajerová, Terezie eMandáková, Giang T.H. Vu, Giang T.H. Vu, Jiří eFajkus, Jiří eFajkus, Martin A. Lysak, Miloslava eFojtova   +7 more
doaj   +1 more source

Systemic aging fuels heart failure: Molecular mechanisms and therapeutic avenues

ESC Heart Failure, Volume 12, Issue 2, Page 1059-1080, April 2025.
Abstract Systemic aging influences various physiological processes and contributes to structural and functional decline in cardiac tissue. These alterations include an increased incidence of left ventricular hypertrophy, a decline in left ventricular diastolic function, left atrial dilation, atrial fibrillation, myocardial fibrosis and cardiac ...
Zhuyubing Fang, Umar Raza, Jia Song, Junyan Lu, Shun Yao, Xiaohong Liu, Wei Zhang, Shujuan Li   +7 more
wiley   +1 more source

Highly Aggressive Metastatic Melanoma Cells Unable to Maintain Telomere Length

Cell Reports, 2017
Summary: Unlimited replicative potential is one of the hallmarks of cancer cells. In melanoma, hTERT (telomerase reverse transcriptase) is frequently overexpressed because of activating mutations in its promoter, suggesting that telomerase is necessary ...
Nikenza Viceconte, Marie-Sophie Dheur, Eva Majerova, Christophe E. Pierreux, Jean-François Baurain, Nicolas van Baren, Anabelle Decottignies   +6 more
doaj   +1 more source

Telomeres at a glance

Journal of Cell Science, 2012
The linearity of chromosomes creates two major problems for eukaryotic cells: the end-replication problem and the end-protection problem. The end-replication problem stems from the inherent inability of the replication machinery to fully duplicate linear templates.
openaire   +3 more sources

Transendocardial injection of expanded autologous CD34+ cells after myocardial infarction: Design of the EXCELLENT trial

ESC Heart Failure, Volume 12, Issue 2, Page 1455-1463, April 2025.
Abstract Aims The extent of irreversible cardiomyocyte necrosis after acute myocardial infarction (AMI) is a major determinant of residual left ventricular (LV) function and clinical outcome. Cell therapy based on CD34+ cells has emerged as an option to help repair the myocardium and to improve outcomes.
Jerome Roncalli, François Roubille, Nicolas Meyer, Giulio Pompilio, Lionel Leroux, Philippe Henon, Guillaume Trebuchet, Anthony Criquet, Matthieu de Kalbermatten, Eric Saloux, Alain Manrique, Pierre‐Yves Marie, Deepak L. Bhatt, Scott D. Solomon, Gilles Montalescot, David E. Newby, Faiez Zannad, on behalf of the EXCELLENT Trial Investigators   +17 more
wiley   +1 more source

Acacetin and Chrysin, Two Polyphenolic Compounds, Alleviate Telomeric Position Effect in Human Cells

Molecular Therapy: Nucleic Acids, 2013
We took advantage of the ability of human telomeres to silence neighboring genes (telomere position effect or TPE) to design a high-throughput screening assay for drugs altering telomeres.
Amina Boussouar, Caroline Barette, Robert Nadon, Adelaïde Saint-Léger, Natacha Broucqsault, Alexandre Ottaviani, Arva Firozhoussen, Yiming Lu, Laurence Lafanechère, Eric Gilson, Frédérique Magdinier, Jing Ye   +11 more
doaj   +1 more source