Consortium of Swiss Academic Libraries

Formation and role of exosomes in cancer

Brinton, Lindsey ; Sloane, Hillary ; Kester, Mark ; Kelly, Kimberly

In: Cellular and Molecular Life Sciences, 2015, vol. 72, no. 4, p. 659-671

Università della Svizzera italiana

Retinoic acid sensitivity of triple-negative breast cancer cells characterized by constitutive activation of the NOTCH1 pathway : the role of RARβ

Paroni, Gabriela ; Zanetti, Adriana ; Barzago, Maria Monica ; Kurosaki, Mami ; Guarrera, Luca ; Fratelli, Maddalena ; Troiani, Martina ; Ubezio, Paolo ; Bolis, Marco ; Vallerga, Arianna ; Biancardi, Federica ; Terao, Mineko ; Garattini, Enrico

In: Cancers, 2020, vol. 12, no. 10, p. 23 p

Triple-negative breast cancer (TNBC) is a heterogeneous disease that lacks effective therapeutic options. In this study, we profile eighteen TNBC cell lines for their sensitivity to the anti-proliferative action of all-trans retinoic acid (ATRA). The only three cell lines (HCC-1599, MB- 157 and MDA-MB-157) endowed with ATRA-sensitivity are characterized by genetic aberrations of the NOTCH1-gene,...

Université de Fribourg

Innate immune cells and their contribution to T-cell-based immunotherapy

Ginefra, Pierpaolo ; Lorusso, Girieca ; Vannini, Nicola

In: International Journal of Molecular Sciences, 2020, vol. 21, no. 12, p. 4441

In recent years, immunotherapy has become the most promising therapy for a variety of cancer types. The development of immune checkpoint blockade (ICB) therapies, the adoptive transfer of tumor-specific T cells (adoptive cell therapy (ACT)) or the generation of T cells engineered with chimeric antigen receptors (CAR) have been successfully applied to elicit durable immunological responses in...

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

Insights into the effect of the G245S single point mutation on the structure of p53 and the binding of the protein to DNA

Lepre, Marco Gaetano ; Omar, Sara Ibrahim ; Grasso, Gianvito ; Morbiducci, Umberto ; Deriu, Marco Agostino ; Tuszynski, Jack A.

In: Molecules, 2017, vol. 22, no. 8, p. 1358

The transcription factor p53 is a potent tumor suppressor dubbed as the “guardian of the genome” because of its ability to orchestrate protective biological outputs in response to a variety of oncogenic stresses. Mutation and thus inactivation of p53 can be found in 50% of human tumors. The majority are missense mutations located in the DNA binding region. Among them, G245S is known to be...

Université de Fribourg

Detection of HER2+ breast cancer cells using bioinspired DNA-based signal amplification

Rafiee, Sarah D. ; Kocabey, Samet ; Mayer, Michael ; List, Jonathan ; Rüegg, Curzio

In: ChemMedChem, 2020, vol. 15, no. 8, p. 661-666

Circulating tumor cells (CTC) are promising biomarkers for metastatic cancer detection and monitoring progression. However, detection of CTCs remains challenging due to their low frequency and heterogeneity. Herein, we report a bioinspired approach to detect individual cancer cells, based on a signal amplification cascade using a programmable DNA hybridization chain reaction (HCR) circuit. We...

Università della Svizzera italiana

SHP-2 in lymphocytes’ cytokine and inhibitory receptor signaling

Niogret, Charlène ; Birchmeier, Walter ; Guarda, Greta

In: Frontiers in immunology, 2019, vol. 10, no. 2468, p. 1-11

Somewhat counterintuitively, the tyrosine phosphatase SHP-2 (SH2 domain- containing protein tyrosine phosphatase-2) is crucial for the activation of extracellular signal-regulated kinase (ERK) downstream of various growth factor receptors, thereby exerting essential developmental functions. This phosphatase also deploys proto-oncogenic functions and specific inhibitors have recently been ...