Publications de Nadine Fournier

Kallikrein-8 mediates furin-independent Activin-A precursor processing to stimulate tumor growth in melanoma

Daniel Constam, Nadine Fournier, Céline Emmanuelle Schmuziger, Manon Bulliard, Katarina Pinjusic

Receptor binding of TGF-β and related ligands such as Activin-A requires cleavage of a furin site in their dimeric precursor proteins. Melanoma cells cleave one Activin-A subunit independently of furin and related proprotein convertases, raising questions ...

2025

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

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

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

Tumor-educated Gr1+CD11b+cells drive breast cancer metastasis via OSM/IL-6/JAK-induced cancer cell plasticity

Annamaria Kauzlaric, Nadine Fournier, Rachel Marcone, Manon Bulliard, Yu-Ting Huang

Cancer cell plasticity contributes to therapy resistance and metastasis, which represent the main causes of cancer-related death, including in breast cancer. The tumor microenvironment drives cancer cell plasticity and metastasis, and unraveling the underl ...

Amer Soc Clinical Investigation Inc2024

Reciprocal inhibition of NOTCH and SOX2 shapes tumor cell plasticity and therapeutic escape in triple-negative breast cancer

Freddy Radtke, Nadine Fournier

Cancer cell plasticity contributes significantly to the failure of chemo- and targeted therapies in triple-negative breast cancer (TNBC). Molecular mechanisms of therapy-induced tumor cell plasticity and associated resistance are largely unknown. Using a g ...

2024

Resistance mechanism to Notch inhibition and combination therapy in human T-cell acute lymphoblastic leukemia

Freddy Radtke, Nadine Fournier, Florence Armand, Romain Hamelin, Linlin Cao, Maria Pavlou

Gain-of-function mutations in NOTCH1 are among the most frequent genetic alterations in T-cell acute lymphoblastic leukemia (T-ALL), highlighting the Notch signaling pathway as a promising therapeutic target for personalized medicine. Yet, a major limitati ...

2023

Aberrant hyperexpression of the RNA binding protein FMRP in tumors mediates immune evasion

Nadine Fournier, Douglas Hanahan, Krisztian Homicsko, Mohammad Sadegh Saghafinia, Dalya Ataca, Qiqun Zeng, Mélanie Louise Tichet, Yuqing Xie, Agnieszka Alicja Chryplewicz, Fleuriane Marie Tryskele Laurene Gallean, Jeremy Gilles Louis Guillot, Simge Yücel, Lucine Christe, Peng Zhang, Inti Zlobec

Many human cancers manifest the capability to circumvent attack by the adaptive immune system. In this work, we identified a component of immune evasion that involves frequent up-regulation of fragile X mental retardation protein (FMRP) in solid tumors. FM ...

American Association for the Advancement of Science2022

Apelin-driven endothelial cell migration sustains intestinal progenitor cells and tumor growth

Mauro Delorenzi, Stefanie Siegert, Pascale Anderle Pedone, Nadine Fournier, Sina Nassiri, François Renevey, Michele De Palma, Mario Leonardo Squadrito, Simone Ragusa

Stem and progenitor cells residing in the intestinal crypts drive the majority of colorectal cancers (CRCs), yet vascular contribution to this niche remains largely unexplored. Vascular endothelial growth factor A (VEGFA) is a key driver of physiological a ...

Springernature2022

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

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

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

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

GLUT1 Expression in Tumor-Associated Neutrophils Promotes Lung Cancer Growth and Resistance to Radiotherapy

Nadine Fournier, Caroline Anne-Lyse Contat, Etienne Meylan, Justine Pascual, Gael Luis Boivin, Pierre-Benoit Bernard Ancey, Silvia Sabatino

Neutrophils are the most abundant circulating leucocytes and are essential for innate immunity. In cancer, pro- or antitumor properties have been attributed to tumor-associated neutrophils (TAN). Here, focusing on TAN accumulation within lung tumors, we id ...

AMER ASSOC CANCER RESEARCH2021

Overcoming microenvironmental resistance to PD-1 blockade in genetically engineered lung cancer models

Ioanna Keklikoglou, Nadine Fournier, Sina Nassiri, Etienne Meylan, Michele De Palma, Ece Kadioglu, Chiara Cianciaruso, Bruno Torchia, Gael Luis Boivin, Alan Nicolas Thierry Guichard, Amaia Martinez Usatorre

Immune checkpoint blockade (ICB) with PD-1 or PD-L1 antibodies has been approved for the treatment of nonsmall cell lung cancer (NSCLC). However, only a minority of patients respond, and sustained remissions are rare. Both chemotherapy and antiangiogenic d ...

AMER ASSOC ADVANCEMENT SCIENCE2021

Pharmacological disruption of the Notch transcription factor complex

Freddy Radtke, Rajwinder Lehal, Ute Koch, Nadine Fournier, 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

Neutrophils suppress tumor-infiltrating T cells in colon cancer via matrix metalloproteinase-mediated activation of TGF beta

Marc-Olivier Sauvain, Freddy Radtke, Mauro Delorenzi, Nadine Fournier, Markus Germann, George Coukos, Amber Dawn Bowler

High T-cell infiltration in colorectal cancer (CRC) correlates with a favorable disease outcome and immunotherapy response. This, however, is only observed in a small subset of CRC patients. A better understanding of the factors influencing tumor T-cell re ...

2020

Combined deletion of Glut1 and Glut3 impairs lung adenocarcinoma growth

Bernard Lanz, Graham Knott, Rolf Gruetter, Nadine Fournier, Caroline Anne-Lyse Contat, Mario Gaetano Lepore, Etienne Meylan, Anders Meibom, Stéphane Laurent Escrig, Justine Pascual, Louise Helene Soegaard Jensen, Anouk Rossier, Pierre-Benoit Bernard Ancey, Silvia Sabatino, Inti Zlobec

Glucose utilization increases in tumors, a metabolic process that is observed clinically by F-18-fluorodeoxyglucose positron emission tomography (F-18-FDG-PET). However, is increased glucose uptake important for tumor cells, and which transporters are impl ...

2020

Myeloid Cells Orchestrate Systemic Immunosuppression, Impairing the Efficacy of Immunotherapy against HPV+ Cancers

Melody Swartz, Nadine Fournier, Douglas Hanahan, Stephan Wullschleger, Gabriele Galliverti, Mélanie Louise Tichet

Cancers induced by human papillomaviruses (HPV) should be responsive to immunotherapy by virtue of expressing the immunogenic oncoproteins E6/E7. However, advanced forms of cervical cancer, driven by HPV, are poorly responsive to immune response-enhancing ...

AMER ASSOC CANCER RESEARCH2020

Endothelial Calcineurin Signaling Restrains Metastatic Outgrowth by Regulating Bmp2

Mauro Delorenzi, Laureline Wetterwald, Nadine Fournier, Sina Nassiri, Borja Prat Luri

Calcineurin/NFAT signaling is active in endothelial cells and is proposed to be an essential component of the tumor angiogenic response. Here, we investigated the role of endothelial calcineurin signaling in vivo in physiological and pathological angiogene ...

2019

ALK7 Signaling Manifests a Homeostatic Tissue Barrier That Is Abrogated during Tumorigenesis and Metastasis

Nadine Fournier, Douglas Hanahan, Mohammad Sadegh Saghafinia, Iacovos Michael, Mélanie Louise Tichet

Herein, we report that the TGF beta superfamily receptor ALK7 is a suppressor of tumorigenesis and metastasis, as revealed by functional studies in mouse models of pancreatic neuroendocrine and lumina! breast cancer, complemented by experimental metastasis ...

Cell Press - Elsevier2019

Neutrophils and Snail orchestrate the establishment of a protumor microenvironment in lung adenocarcinoma

Nicolas Jean Philippe Guex, Miguel Garcia, Nadine Fournier, Etienne Meylan, Alessandra Piersigilli, Julien Robert Rémi Faget, Svenja Johanna Groeneveld, Gael Luis Boivin, Ioannis Xenarios, Inti Zlobec

AMER ASSOC CANCER RESEARCH2018

RANKL Signaling Sustains Primary Tumor Growth in Genetically Engineered Mouse Models of Lung Adenocarcinoma

Nadine Fournier, Caroline Anne-Lyse Contat, Etienne Meylan, Julien Robert Rémi Faget

INTRODUCTION: NSCLC is the leading cause of cancer mortality. Recent retrospective clinical analyses suggest that blocking the receptor activator of NF-κB (RANK) signaling pathway inhibits the growth of NSCLC and might represent a new treatment strategy. M ...

2018

Snail mediates repression of the Dlk1-Dio3 locus in lung tumor-infiltrating immune cells

Nadine Fournier, Etienne Meylan, Julien Robert Rémi Faget, Svenja Johanna Groeneveld

The epithelial-mesenchymal transition-inducing transcription factor Snail contributes to tumor progression in different malignancies. In the present study, we used a transcriptomics approach to elucidate the mechanism of Snail-mediated tumor growth promoti ...

2018