Concept

Cellular senescence

Publications associées (117)

Infection-induced host translational blockage inhibits immune responses and epithelial renewal in the Drosophila gut

Typically, immune responses control the pathogen, while repair and stress pathways limit damage caused by pathogenesis. The relative contribution of damage to the outcome of pathogenesis and the mechanistic links between the immune and repair pathways are ...

Cell Press2012

Capturing epidermal stemness for regenerative medicine

Yann Barrandon, Ariane Rochat, François Gorostidi, Stéphanie Claudinot, Andrea Zaffalon, Nicolas Grasset, Stéphanie Danièle Hélène Droz-Georget

The skin is privileged because several skin-derived stem cells (epithelial stem cells from epidermis and its appendages, mesenchymal stem cells from dermis and subcutis, melanocyte stem cells) can be efficiently captured for therapeutic use. Main indicatio ...

Academic Press Ltd- Elsevier Science Ltd2012

Pulsed 86Sr-labeling and NanoSIMS imaging to study coral biomineralization at ultra-structural length scales

Anders Meibom, Jaroslaw Hubert Stolarski, Isabelle Domart-Coulon

A method to label marine biocarbonates is developed based on a concentration enrichment of a minor stable isotope of a trace element that is a natural component of seawater, resulting in the formation of biocarbonate with corresponding isotopic enrichments ...

Springer-Verlag2012

Distinguishing drug-induced minor morphological changes from major cellular damage via label-free impedimetric toxicity screening

Philippe Renaud, Arnaud Bertsch, Robert Meissner, Sri Harsha Kasi Raj, Bilge Eker

We present a novel perfusion-based microfluidic platform for label-free drug toxicity screening which can single out non-lethal morphological changes from cellular death using electrical impedance spectroscopy. Minor cellular changes such as cell-cell cont ...

2011

The PIAS homologue Siz2 regulates perinuclear telomere position and telomerase activity in budding yeast

Joachim Lingner

Budding yeast telomeres are reversibly bound at the nuclear envelope through two partially redundant pathways that involve the Sir2/3/4 silencing complex and the Yku70/80 heterodimer(1,2). To better understand how this is regulated, we studied the role of ...

2011

Enhanced c-Met activity promotes G-CSF-induced mobilization of hematopoietic progenitor cells via ROS signaling

Mechanisms governing stress-induced hematopoietic progenitor cell mobilization are not fully deciphered. We report that during granulocyte colony-stimulating factor-induced mobilization c-Met expression and signaling are up-regulated on immature bone marro ...

2011

Insight into the Regulation of Telomerase Access to Telomeres by Shelterin Proteins

Elena Aritonovska

Recruitment to telomeres is a pivotal step in the function and regulation of human telomerase. Impaired telomerase function can lead to premature organismal aging, development of cancer and multisystem disorders such as dyskeratosis congenita. Telomerase a ...

EPFL2011

Caspase-2-mediated cleavage of Mdm2 creates a p53-induced positive feedback loop

Etienne Meylan

Caspase-2 is an evolutionarily conserved caspase, yet its biological function and cleavage targets are poorly understood. Caspase-2 is activated by the p53 target gene product PIDD (also known as LRDD) in a complex called the Caspase-2-PIDDosome. We show t ...

2011

Ink-dependent n-factors for the Yule-Nielsen modified spectral Neugebauer model

Roger Hersch, Romain Rossier

Different inks may have different mechanical and/or optical properties. Existing Yule-Nielsen modified Neugebauer spectral prediction models assume however that the inks forming a color halftone behave similarly, i.e. that a single n-factor can model the l ...

Society for Imaging Science and Technology2010

The cyclin E regulator cullin 3 prevents mouse hepatic progenitor cells from becoming tumor-initiating cells

Benita Wolf

Cyclin E is often overexpressed in cancer tissue, leading to genetic instability and aneuploidy. Cullin 3 (Cul3) is a component of the BTB-Cul3-Rbx1 (BCR) ubiquitin ligase that is involved in the turnover of cyclin E. Here we show that liver-specific ablat ...

2010

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