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Freddy Radtke

Cette personne a quitté l’EPFL

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Publications associées (113)

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Paradigms of notch signaling in mammals

Freddy Radtke

Notch proteins regulate a broad spectrum of cell fate decisions and differentiation processes during fetal and postnatal life. These proteins are involved in organogenesis during embryonic development as well as in the maintenance of homeostasis of self-re ...

2005

Direct regulation of Gata3 expression determines the T helper differentiation potential of Notch

Freddy Radtke

CD4(+) T helper cells differentiate into T helper 1 (Th1) or Th2 effector lineages, which orchestrate immunity to different types of microbes. Both Th1 and Th2 differentiation can be induced by Notch, but what dictates which of these programs is activated ...

2007

Bcl-xL targeting eliminates ageing tumor-promoting neutrophils and inhibits lung tumor growth

Freddy Radtke, Etienne Meylan, Nadine Fournier, Amber Dawn Bowler, Justine Pascual, Anita Bodac

Elevated peripheral blood and tumor-infiltrating neutrophils are often associated with a poor patient prognosis. However, therapeutic strategies to target these cells are difficult to implement due to the life-threatening risk of neutropenia. In a genetica ...

Springernature2024

Critical role of endothelial Notch1 signaling in postnatal angiogenesis

Freddy Radtke

Notch receptors are important mediators of cell fate during embryogenesis, but their role in adult physiology, particularly in postnatal angiogenesis, remains unknown. Of the Notch receptors, only Notch1 and Notch4 are expressed in vascular endothelial cel ...

2007

Notch1 signals through Jagged2 to regulate apoptosis in the apical ectodermal ridge of the developing limb bud

Freddy Radtke

The Notch family of receptors is involved in a wide variety of developmental processes, including cell fate specification, cell proliferation, and cell survival decisions during cell differentiation and tissue morphogenesis. Notch1 and Notch ligands are ex ...

2005

Interaction between Reelin and Notch signaling regulates neuronal migration in the cerebral cortex

Freddy Radtke

Neuronal migration is a fundamental component of brain development whose failure is associated with various neurological and psychiatric disorders. Reelin is essential for the stereotypical inside-out sequential lamination of the neocortex, but the molecul ...

2008

Notch1 is essential for postnatal hair follicle development and homeostasis

Freddy Radtke, Yann Barrandon

Notch genes encode evolutionarily conserved large, single transmembrane receptors, which regulate many cell fate decisions and differentiation processes during fetal and postnatal life. Multiple Notch receptors and ligands are expressed in both developing ...

2005

Notch1 and Notch2 receptors influence progressive hair graying in a dose-dependent manner

Freddy Radtke, Friedrich Beermann

The Notch signaling pathway is involved in diverse biological processes such as cell fate decisions or stem cell maintenance. In this study, we assessed the role of this pathway for melanocyte development and hair pigmentation using RBP-Jkappa, Notch1, and ...

2007

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

Notch as a tumour suppressor

Freddy Radtke, Craig Nowell

The Notch signalling cascade is an evolutionarily conserved pathway that has a crucial role in regulating development and homeostasis in various tissues. The cellular processes and events that it controls are diverse, and continued investigation over recen ...

Nature Publishing Group2017

Splenic fibroblasts control marginal zone B cell movement and function via two distinct Notch2-dependent regulatory programs

Freddy Radtke, Ute Koch

Innate-like splenic marginal zone (MZ) B (MZB) cells play unique roles in immunity due to their rapid responsiveness to blood-borne microbes. How MZB cells integrate cell-extrinsic and -intrinsic processes to achieve accelerated responsiveness is unclear. ...

2025

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

Freddy Radtke, Ute Koch, Stéphanie Claudinot

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 of a Gal4-dependent gene recombination and illuminating mouse

Freddy Radtke

Cell labeling technologies, including the Cre/loxP system, are powerful tools in developmental biology. Although the conventional Cre/loxP system has been extensively used to label the expression of specific genes, it is less frequently used for labeling p ...

INT PRESS EDITING CENTRE INC2022

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

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

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

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

Pharmacological disruption of the Notch transcription factor complex

Freddy Radtke, Ute Koch, Nadine Fournier, Rajwinder Lehal, Linlin Cao, Michele Vigolo, Jelena Zaric

Notch pathway signaling is implicated in several human cancers. Aberrant activation and mutations of Notch signaling components are linked to tumor initiation, maintenance, and resistance to cancer therapy. Several strategies, such as monoclonal antibodies ...

National Academy of Sciences2020

Notch/gamma-secretase inhibition turns proliferative cells in intestinal crypts and adenomas into goblet cells

Freddy Radtke

The self-renewing epithelium of the small intestine is ordered into stem/progenitor crypt compartments and differentiated villus compartments. Recent evidence indicates that the Wnt cascade is the dominant force in controlling cell fate along the crypt-vil ...

2005

Conditional ablation of Notch signaling in pancreatic development

Freddy Radtke

The role of the Notch signaling members Notch1, Notch2 and Rbpj in exocrine pancreatic development is not well defined. We therefore analyzed conditional pancreas-specific Rbpj and combined Notch1/Notch2 knockout mice using Ptf1a(+/Cre(ex1)) mice crossed w ...

2008

Hierarchy of Notch-Delta interactions promoting T cell lineage commitment and maturation

Freddy Radtke, Ute Koch

Notch1 (N1) receptor signaling is essential and sufficient for T cell development, and recently developed in vitro culture systems point to members of the Delta family as being the physiological N1 ligands. We explored the ability of Delta1 (DL1) and DL4 t ...

2007

Oncogenic activation of the Notch1 gene by deletion of its promoter in Ikaros-deficient T-ALL

Freddy Radtke

The Notch pathway is frequently activated in T-cell acute lymphoblastic leukemias (T-ALLs). Of the Notch receptors, Notch1 is a recurrent target of gain-of-function mutations and Notch3 is expressed in all T-ALLs, but it is currently unclear how these rece ...

2010