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Freddy Radtke

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Publications associées (117)

The Notch pathway controls fibrotic and regenerative repair in the adult heart

Freddy Radtke, Mario Gaetano Lepore

Aims In the adult heart, Notch signalling regulates the response to injury. Notch inhibition leads to increased cardiomyocyte apoptosis, and exacerbates the development of cardiac hypertrophy and fibrosis. The role of Notch in the mesenchymal stromal cell ...

Oxford University Press2014

Derivation of Traceable and Transplantable Photoreceptors from Mouse Embryonic Stem Cells

Freddy Radtke, Ute Koch

Retinal degenerative diseases resulting in the loss of photoreceptors are one of the major causes of blindness. Photoreceptor replacement therapy is a promising treatment because the transplantation of retina-derived photoreceptors can be applied now to di ...

Cell Press2014

Tumor Vessel Normalization by Chloroquine Independent of Autophagy

Freddy Radtke

Chloroquine (CQ) has been evaluated as an autophagy blocker for cancer treatment, but it is unknown if it acts solely by inhibiting cancer cell autophagy. We report that CQ reduced tumor growth but improved the tumor milieu. By normalizing tumor vessel str ...

Elsevier2014

Inhibitors of notch signalling pathway and use thereof in treatment of cancers

Freddy Radtke, Rajwinder Lehal, Jieping Zhu, Viktoria Reinmüller

The present invention relates to use of inhibitors of Notch signalling pathway selected from the group consisting of 6-(4-Tert-Butylphenoxy)Pyridin-3-Amine (I3), its derivatives, in treating and/or preventing cancers. ...

2013

Jagged1 is the major regulator of notch-dependent cell fate in proximal airways

Freddy Radtke

Background: The Notch signaling pathway plays complex roles in developing lungs, including regulation of proximodistal fates, airway cell specification and differentiation. However, the specific Notch-mediated signals involved in lung development remain un ...

Wiley-Blackwell2013

Alzheimer's disease mutations in APP but not γ-secretase modulators affect epsilon-cleavage-dependent AICD production

Thomas Lemmin, Patrick Fraering, Freddy Radtke, Rajwinder Lehal, Jemila Houacine, Matteo Dal Peraro, Mitko Dimitrov, Andrzej Jacek Fligier

Pathological amino-acid substitutions in the amyloid precursor protein (APP) and chemical gamma-secretase modulators affect the processing of APP by the gamma-secretase complex and the production of the amyloid-beta peptide A beta 42, the accumulation of w ...

Nature Publishing Group2013

Stem cells living with a Notch

Freddy Radtke, Rajwinder Lehal, Ute Koch

Notch signaling has been shown over the past few decades to play fundamental roles in a plethora of developmental processes in an evolutionarily conserved fashion. Notch-mediated cell-to-cell signaling is involved in many aspects of embryonic development a ...

Company of Biologists2013

Cutaneous Notch Signaling in Health and Disease

Freddy Radtke, Craig Nowell

The development and maintenance of the skin are dependent on myriad signaling pathways that regulate a variety of cellular processes. In cutaneous epithelial cells, the Notch cascade plays a central role in ensuring that proliferation and differentiation a ...

Cold Spring Harbor Lab Press, Publications Dept2013

Regulation of innate and adaptive immunity by Notch

Freddy Radtke

Coordinated function of the innate and adaptive arms of the immune system in vertebrates is essential to promote protective immunity and to avoid immunopathology. The Notch signalling pathway, which was originally identified as a pleiotropic mediator of ce ...

Nature Publishing Group2013

Notch Signaling Regulates Follicular Helper T Cell Differentiation

Nicolas Fasnacht, Freddy Radtke, Floriane Auderset, Ute Koch, Anne Wilson

Follicular helper T (TFH) cells are specialized in providing help for B cell differentiation and Ab secretion. Several positive and negative regulators of TFH cell differentiation have been described but their control is not fully understood. In this study ...

American Association of Immunologists ; Oxford University Press2013

DL4-mediated Notch signaling is required for the development of fetal alpha beta and gamma delta T cells

Stéphanie Claudinot, Freddy Radtke, Ute Koch

T-cell development depends upon interactions between thymocytes and thymic epithelial cells (TECs). The engagement of delta-like 4 (DL4) on TECs by Notch1 expressed by blood-borne BM-derived precursors is essential for T-cell commitment in the adult thymus ...

Wiley2013

Generation and characterization of a Notch1 signaling-specific reporter mouse line

Yann Barrandon, Stéphanie Claudinot, Freddy Radtke, Rajwinder Lehal, Luca Pellegrinet

Signaling through the Notch1 receptor is essential for the control of numerous developmental processes during embryonic life as well as in adult tissue homeostasis and disease. Since the outcome of Notch1 signaling is highly context-dependent, and its prec ...

Wiley-Blackwell2012

Notch Receptors and Smad3 Signaling Cooperate in the Induction of Interleukin-9-Producing T Cells

Freddy Radtke, Bing Zhu

Interleukin 9 (IL-9) is a pleiotropic cytokine that can regulate autoimmune responses by enhancing regulatory CD4(+)FoxP3(+) T regulatory (Treg) cell survival and T helper 17 (Th17) cell proliferation. Here, we analyzed the costimulatory requirements for t ...

2012

Very High Throughput Electrical Cell Lysis and Extraction of Intracellular Compounds Using 3D Carbon Electrodes in Lab-on-a-Chip Devices

Philippe Renaud, Freddy Radtke, Rajwinder Lehal, Rodrigo Martinez Duarte

Here we present an electrical lysis throughput of 600 microliters per minute at high cell density (108 yeast cells per ml) with 90% efficiency, thus improving the current common throughput of one microliter per minute. We also demonstrate the extraction of ...

2012

Loss of Cutaneous TSLP-Dependent Immune Responses Skews the Balance of Inflammation from Tumor Protective to Tumor Promoting

Freddy Radtke, Ute Koch, Matteo Di Piazza, Craig Nowell

Inflammation can promote or inhibit cancer progression. In this study we have addressed the role of the proinflammatory cytokine thymic stromal lymphopoietin (TSLP) during skin carcinogenesis. Using conditional loss- and gain-of-function mouse models for N ...

Elsevier2012

Transcription factor ROR alpha is critical for nuocyte development

Freddy Radtke, Ute Koch

Nuocytes are essential in innate type 2 immunity and contribute to the exacerbation of asthma responses. Here we found that nuocytes arose in the bone marrow and differentiated from common lymphoid progenitors, which indicates they are distinct, previously ...

2012

Notch Signaling In Normal And Malignant T-Cells

Freddy Radtke, Rajwinder Lehal, Caroline Poisson, Ute Koch, Fabian Junker

Elsevier Science Inc2012

Distinct Spatial and Molecular Features of Notch Pathway Assembly in Regulatory T Cells

Freddy Radtke

Variations in the spatial localization of signaling components and crosstalk among signaling cascades are mechanisms through which diversity in signaling networks is generated. The receptor Notch provides an example of regulation by spatial localization: I ...

2012

Inhibition of Fibroblast Growth by Notch1 Signaling Is Mediated by Induction of Wnt11-Dependent WISP-1

Freddy Radtke, Jialin Zhang, Yurong Tan

Fibroblasts are an integral component of stroma and important source of growth factors and extracellular matrix (ECM). They play a prominent role in maintaining tissue homeostasis and in wound healing and tumor growth. Notch signaling regulates biological ...

Public Library of Science2012

RBP-Jκ-dependent Notch signaling enhances retinal pigment epithelial cell proliferation in transgenic mice

Friedrich Beermann, Iraz Toprak Aydin, Freddy Radtke

The Notch signaling pathway is an ubiquitous cell-cell interaction mechanism, which is essential in controlling processes like cell proliferation, cell fate decision, differentiation or stem cell maintenance. Recent data have shown that Notch signaling is ...

Nature Publishing Group2011

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