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Concept

Leucémie lymphoïde chronique

Publications associées (22)

Caspase-9-mediated cleavage of vimentin attenuates the aggressiveness of leukemic NB4 cells

Cyrus Kazemiraad

Vimentin is a main type 3 intermediate filament protein. It seems that abnormal expression of vimentin is contributed to the appearance of the aggressive feature of cancer cells. So that it has been reported that malignancy and epithelial-mesenchymal trans ...

SPRINGER2023

Investigating the effect of inflammation on the progression of B-cell lymphoma dissemination in the sentinel lymph node

Daniel Molina Romero

Lymphomas are a group of heterogeneous blood cancers that arise from lymphocytes. The two primary clinical classifications of lymphomas are Hodgkin's lymphoma (HL), and non-Hodgkin's lymphoma (NHL). In particular, B-cell lymphoma refers to the malignancies ...

EPFL2023

Tcf1 is essential for initiation of oncogenic Notch1-driven chromatin topology in T-ALL

Freddy Radtke, Ute Koch, Nadine Fournier, Mateusz Waldemar Antoszewski, Marianne Nkosi, Tara Kimberly Sugrue, Christelle Dubey

NOTCH1 is a well-established lineage specifier for T cells and among the most frequently mutated genes throughout all subclasses of T cell acute lymphoblastic leukemia (T-ALL). How oncogenic NOTCH1 signaling launches a leukemia-prone chromatin landscape du ...

AMER SOC HEMATOLOGY2022

Notch signaling promotes disease initiation and progression in murine chronic lymphocytic leukemia

Freddy Radtke, Ute Koch, Nadine Fournier, Jessica Sordet, Mateusz Waldemar Antoszewski, Marianne Nkosi, Delphine Maude Tardivon

NOTCH1 gain-of-function mutations are recurrent in B-cell chronic lymphocytic leukemia (B-CLL), where they are associated with accelerated disease progression and refractoriness to chemotherapy. The specific role of NOTCH1 in the development and progressio ...

AMER SOC HEMATOLOGY2021

Notch Signaling - a Booster of Chronic Lymphocytic Leukemia During Initiation and Disease Progression

Delphine Maude Tardivon

Chronic lymphocytic leukemia (CLL) is a B cell malignancy and represents the most common leukemia in adults within the Western world. This disease mainly affects the elderly, with a median age of diagnosis over 70. The disease course is highly variable amo ...

EPFL2020

Btk SH2-kinase interface is critical for allosteric kinase activation and its targeting inhibits B-cell neoplasms

Matteo Dal Peraro, Oliver Hantschel, Florence Pojer, Sandrine Madeleine Suzanne Georgeon, Maria Josefina Marcaida Lopez, Allan Joaquim Lamontanara, Grégory La Sala, Tim Kükenshöner, Daniel Pereira Duarte

Bruton's tyrosine kinase (Btk) is critical for B-cell maturation and activation. Btk loss-of-function mutations cause human X-linked agammaglobulinemia (XLA). In contrast, Btk signaling sustains growth of several B-cell neoplasms which may be treated with ...

Nature Publishing Group2020

Allosteric regulation and targeting of Bruton's tyrosine kinase (Btk) in B-cell lymphoma

Daniel Pereira Duarte

Bruton's tyrosine kinase (Btk) is a key component of BCR signaling required for B-cell maturation and activation. Loss-of-function mutations throughout the Btk protein cause human X-linked agammaglobulinemia (XLA), a heritable genetic disorder characterize ...

EPFL2020

γ-Catenin-Dependent Signals Maintain BCR-ABL1+ B Cell Acute Lymphoblastic Leukemia

Oliver Hantschel, Jörg Hülsken, Anja Irmisch

The BCR-ABL1 fusion protein is the cause of chronic myeloid leukemia (CML) and of a significant fraction of adult-onset B cell acute lymphoblastic leukemia (B-ALL) cases. Using mouse models and patient-derived samples, we identified an essential role for γ ...

2019

Novel therapeutic strategies targeting the B-cell receptor signaling and antigen presentation pathways in non-Hodgkin lymphoma

Elena Battistello

B-cell non-Hodgkin lymphomas (B-NHLs) are a heterogeneous group of tumors deriving from the malignant transformation of B cells. The two most common B-NHL subtypes are follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL), which account togeth ...

EPFL2019

The nuclear receptor corepressor NCoR1 regulates hematopoiesis and leukemogenesis in vivo

Johan Auwerx, Lulu Liu, Wei Zhang

Enhanced understanding of normal and malignant hematopoiesis pathways should facilitate the development of effective clinical treatment strategies for hematopoietic malignancies. Nuclear receptor corepressor 1 (NCoR1) has been implicated in transcriptional ...

AMER SOC HEMATOLOGY2019

Unpaired extracellular cysteine mutations of CSF3R mediate gain or loss of function

Oliver Hantschel, Tim Kükenshöner

Exclusive of membrane-proximal mutations seen commonly in chronic neutrophilic leukemia (e.g. T618I), functionally defective mutations in the extracellular domain of the granulocyte colony-stimulating factor receptor (CSF3R) have been reported only in seve ...

American Association for Cancer Research2017

Differential signaling networks of Bcr-Abl p210 and p190 kinases in leukemia cells defined by functional proteomics

Romain Hamelin, Sandrine Madeleine Suzanne Georgeon, Oliver Hantschel, Sina Maren Reckel

The two major isoforms of the oncogenic Bcr-Abl tyrosine kinase, p210 and p190, are expressed upon the Philadelphia chromosome translocation. p210 is the hallmark of chronic myelogenous leukemia, whereas p190 occurs in the majority of B-cell acute lymphobl ...

Nature Publishing Group2017

Allosteric kinase inhibitors

Oliver Hantschel

Background. Inhibition of the kinase activity of the BCR-ABL1 oncoprotein by an allosteric mechanism of action facilitates alternative treatment options for chronic myeloid leukemia (CML) patients who cannot be adequately treated with conventional catalyti ...

Springer Nature2017

Targeting macrophages sensitizes chronic lymphocytic leukemia to apoptosis and inhibits disease progression

Michele De Palma

The role of monocytes/macrophages in the development and progression of chronic lymphocytic leukemia (CLL) is poorly understood. Transcriptomic analyses show that monocytes/macrophages and leukemic cells cross talk during CLL progression. Macrophage deplet ...

Elsevier2016

Lymphotoxin-Dependent B Cell-FRC Crosstalk Promotes De Novo Follicle Formation and Antibody Production following Intestinal Helminth Infection

Nicola Harris, Lalit Kumar Dubey, Ilaria Mosconi, Luc Xavier Marie Lebon

Secondary lymphoid tissues provide specialized niches for the initiation of adaptive immune responses and undergo a remarkable expansion in response to inflammatory stimuli. Although the formation of B cell follicles was previously thought to be restricted ...

Elsevier2016

Dicer1 imparts essential survival cues in Notch-driven T-ALL via miR-21-mediated tumor suppressor Pdcd4 repression

Freddy Radtke, Ute Koch, Fabian Junker

The modulatory function of individual microRNAs (miRNAs) in Notch-driven T-cell acute lymphoblastic leukemias (T-ALLs) has recently been established. Although protumorigenic and tumor-suppressive miRNAs are implicated in disease onset in murine models of N ...

American Society of Hematology2015

Safe Implementation of Embedded Software for a Portable Device Supporting Drug Administration

Giovanni De Micheli, Yann Thoma, Alena Simalatsar, Wenqi You Dubout

Poor adherence to medical regimen causes approximately 33% to 69% of medication-related hospitalizations and accounts for $100 billion in annual health care costs. In this paper we address the problem of unintentional non adherence, when patient fails to t ...

IEEE2014

MicroRNA 21 is a novel oncogene in Notch1-driven acute lymphoblastic T cell leukemia

Fabian Junker

Notch signaling is a conserved cell-to-cell communication pathway essential in the development and maintenance of various tissues. Upon ligand binding, Notch receptors on the cell surface are proteolytically cleaved, generating the intracellular domain of ...

EPFL2014

Conditional Deletion of Ferritin H in Mice Reduces B and T Lymphocyte Populations

The immune system and iron availability are intimately linked as appropriate iron supply is needed for cell proliferation, while excess iron, as observed in hemochromatosis, may reduce subsets of lymphocytes. We have tested the effects of a ferritin H gene ...

Public Library of Science2014

BCR-ABL uncouples canonical JAK2-STAT5 signaling in chronic myeloid leukemia

Oliver Hantschel

Constitutive activation of STAT5 is critical for the maintenance of chronic myeloid leukemia (CML) characterized by the BCR-ABL oncoprotein. Tyrosine kinase inhibitors (TKIs) for the STAT5-activating kinase JAK2 have been discussed as a treatment option fo ...

Nature Publishing Group2012