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Université de Fribourg

Magi1, a new potential tumor suppressor gene in estrogen receptor positive breast cancer

Alday-Parejo, Begoña ; Richard, François ; Wörthmüller, Janine ; Rau, Tilman ; Galván, José A. ; Desmedt, Christine ; Santamaria-Martinez, Albert ; Rüegg, Curzio

In: Cancers, 2020, vol. 12, no. 1, p. 223

Membrane-associated guanylate kinase (MAGUK) with inverted domain structure-1 (MAGI1) is an intracellular adaptor protein that stabilizes epithelial junctions consistent with a tumor suppressive function in several cancers of epithelial origin. Here we report, based on experimental results and human breast cancer (BC) patients’ gene expression data, that MAGI1 is highly expressed and acts...

Université de Fribourg

Are integrins still practicable targets for anti-cancer therapy?

Alday-Parejo, Begoña ; Stupp, Roger ; Rüegg, Curzio

In: Cancers, 2019, vol. 11, no. 7, p. 978

Correlative clinical evidence and experimental observations indicate that integrin adhesion receptors, in particular those of the αV family, are relevant to cancer cell features, including proliferation, survival, migration, invasion, and metastasis. In addition, integrins promote events in the tumor microenvironment that are critical for tumor progression and metastasis, including tumor...

Università della Svizzera italiana

Role of CXCL13 and CCL20 in the recruitment of B cells to inflammatory foci in chronic arthritis

Armas-González, Estefanía ; Domínguez-Luis, María Jesús ; Díaz-Martín, Ana ; Arce-Franco, Mayte ; Castro-Hernández, Javier ; Danelon, Gabriela ; Hernández-Hernández, Vanesa ; Bustabad-Reyes, Sagrario ; Cantabrana, Alberto ; Uguccioni ; Díaz-González, Federico

In: Arthritis research & therapy, 2018, vol. 20, p. 114

Background: B cells exert their pathogenic action in rheumatoid arthritis (RA) locally in the synovium. This study was undertaken to elucidate the chemokines responsible for the recruitment of B cells in the inflamed synovium, taking into account that the rich chemokine milieu present in the synovial tissue can fine-tune modulate discrete chemokine receptors. Methods: Expression levels of...

Université de Fribourg

Obesity promotes the expansion of metastasis-initiating cells in breast cancer

Bousquenaud, Mélanie ; Fico, Flavia ; Solinas, Giovanni ; Rüegg, Curzio ; Santamaria-Martínez, Albert

In: Breast Cancer Research, 2018, vol. 20, no. 1, p. 104

Obesity is a strong predictor of poor prognosis in breast cancer, especially in postmenopausal women. In particular, tumors in obese patients tend to seed more distant metastases, although the biology behind this observation remains poorly understood.Methods: To elucidate the effects of the obese microenvironment on metastatic spread, we ovariectomized C57BL/6 J female mice and fed them...

Université de Fribourg

Suppression of intratumoral CCL22 by type I interferon inhibits migration of regulatory T cells and blocks cancer progression

Anz, David ; Rapp, Moritz ; Eiber, Stephan ; Koelzer, Viktor H ; Thaler, Raffael ; Haubner, Sascha ; Knott, Max ; Nagel, Sarah ; Golic, Michaela ; Wiedemann, Gabriela M ; Bauernfeind, Franz ; Wurzenberger, Cornelia ; Hornung, Veit ; Scholz, Christoph ; Mayr, Doris ; Rothenfusser, Simon ; Endres, Stefan ; Bourquin, Carole

In: Cancer Research, 2015, vol. 75, no. 21, p. 4483-4493

The chemokine CCL22 is abundantly expressed in many types of cancer and is instrumental for intratumoral recruitment of regulatory T cells (Treg), an important subset of immunosuppressive and tumor-promoting lymphocytes. In this study, we offer evidence for a generalized strategy to blunt Treg activity that can limit immune escape and promote tumor rejection. Activation of innate immunity with...

Université de Fribourg

The dipeptidylpeptidase-IV inhibitors sitagliptin, vildagliptin and saxagliptin do not impair innate and adaptive immune responses

Anz, David ; Kruger, S. ; Haubner, S. ; Rapp, Moritz ; Bourquin, Carole ; Endres, Stefan

In: Diabetes, Obesity and Metabolism, 2014, vol. 16, no. 6, p. 569–572

Inhibitors of dipeptidylpeptidase IV (DPP-IV) represent a novel class of frequently used anti-diabetic drugs. In addition to its function in metabolic regulation, DPP-IV also plays a role in the immune system. Whether the DPP-IV inhibitors sitagliptin, vildagliptin or saxagliptin impair immune responses is, however, currently unknown. Here, we investigated the effect of these agents on both...