Università della Svizzera italiana

Loss and revival of androgen receptor signaling in advanced prostate cancer

Formaggio, Nicolò ; Rubin, Mark A. ; Theurillat, Jean-Philippe

In: Oncogene, 2021, vol. 40, no. 7, p. 1205–1216

Targeting the androgen receptor (AR) signaling axis has been, over decades, the mainstay of prostate cancer therapy. More potent inhibitors of androgen synthesis and antiandrogens have emerged and have been successfully i mplemented in clinical practice. That said, the stronger inhibition of the AR signaling axis has led in recent years to an increase of prostate cancers that de-differentiate...

Université de Fribourg

Effects of anti-PD-1 immunotherapy on tumor regression: insights from a patient-derived xenograft model

Martín-Ruiz, Asunción ; Fiuza-Luces, Carmen ; Martínez-Martínez, Esther ; Arias, Clemente F. ; Gutiérrez, Lourdes ; Ramírez, Manuel ; Martín-Acosta, Paloma ; Coronado, Maria José ; Lucia, Alejandro ; Provencio, Mariano

In: Scientific Reports, 2020, vol. 10, no. 1, p. 7078

Immunotherapies, such as checkpoint blockade of programmed cell death protein-1 (PD-1), have resulted in unprecedented improvements in survival for patients with lung cancer. Nonetheless, not all patients benefit equally and many issues remain unresolved, including the mechanisms of action and the possible effector function of immune cells from non-lymphoid lineages. The purpose of this...

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...

Università della Svizzera italiana

Inhibition of Notch pathway arrests PTEN-deficient advanced prostate cancer by triggering p27-driven cellular senescence

Revandkar, Ajinkya ; Perciato, Maria Luna ; Toso, Alberto ; Alajati, Abdullah ; Chen, Jingjing ; Gerber, Hermeto ; Dimitrov, Mitko ; Rinaldi, Andrea ; Delaleu, Nicolas ; Pasquini, Emiliano ; D’Antuono, Rocco ; Pinton, Sandra ; Losa, Marco ; Gnetti, Letizia ; Arribas, Alberto ; Fraering, Patrick ; Bertoni, Francesco ; Nepveu, Alain ; Andrea Alimonti

In: Nature communications, 2016, vol. 7, p. 13719

Activation of NOTCH signalling is associated with advanced prostate cancer and treatment resistance in prostate cancer patients. However, the mechanism that drives NOTCH activation in prostate cancer remains still elusive. Moreover, preclinical evidence of the therapeutic efficacy of NOTCH inhibitors in prostate cancer is lacking. Here, we provide evidence that PTEN loss in prostate tumours ...