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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 ...

Université de Fribourg

Regulation of TRPM8 channel activity by Src-mediated tyrosine phosphorylation

Manolache, Alexandra ; Selescu, Tudor ; Maier, G. Larisa ; Mentel, Mihaela ; Ionescu, Aura Elena ; Neacsu, Cristian ; Babes, Alexandru ; Szedlacsek, Stefan Eugen

In: Journal of Cellular Physiology, 2019, p. -

The transient receptor potential melastatin type 8 (TRPM8) receptor channel is expressed in primary afferent neurons where it is the main transducer of innocuous cold temperatures and also in a variety of tumors, where it is involved in progression and metastasis. Modulation of this channel by intracellular signaling pathways has therefore important clinical implications. We investigated the...

Università della Svizzera italiana

Hitting the right spot : mechanism of action of OPB‐31121, a novel and potent inhibitor of the Signal Transducer and Activator of Transcription 3 (STAT3)

Brambilla, Lara ; Genini, Davide ; Laurini, Erik ; Merulla, Jessica ; Perez, Laurent ; Fermeglia, Maurizio ; Carbone, Giuseppina M. ; Pricl, Sabrina ; Catapano, Carlo V.

In: Molecular oncology, 2015, vol. 9, no. 6, p. 1194-1206

STAT3 is a key element in many oncogenic pathways and, like other transcription factors, is an attractive target for development of novel anticancer drugs. However, interfering with STAT3 functions has been a difficult task and very few small molecule inhibitors have made their way to the clinic. OPB‐31121, an anticancer compound currently in clinical trials, has been reported to affect...

Université de Fribourg

Ciliary neurotrophic factor stimulates cardioprotection and the proliferative activity in the adult zebrafish heart

Bise, Thomas ; de Preux Charles, Anne-Sophie ; Jaźwińska, Anna

In: npj Regenerative Medicine, 2019, vol. 4, no. 1, p. 2

Unlike mammals, adult zebrafish can regenerate their hearts after injury via proliferation of cardiomyocytes. The cell-cycle entry of zebrafish cardiac cells can also be stimulated through preconditioning by thoracotomy, a chest incision without myocardial damage. To identify effector genes of heart preconditioning, we performed transcriptome analysis of ventricles from thoracotomized...

Università della Svizzera italiana

Regulatory control of DNA end resection by Sae2 phosphorylation

Cannavo, Elda ; Johnson, Dominic ; Andres, Sara N. ; Kissling, Vera M. ; Reinert, Julia K. ; Garcia, Valerie ; Erie, Dorothy A. ; Hess, Daniel ; Thomä, Nicolas H. ; Enchev, Radoslav I. ; Peter, Matthias ; Williams, R. Scott ; Neale, Matt J. ; Cejka, Petr

In: Nature communications, 2018, vol. 9, p. 4016

DNA end resection plays a critical function in DNA double-strand break repair pathway choice. Resected DNA ends are refractory to end-joining mechanisms and are instead channeled to homology-directed repair. Using biochemical, genetic, and imaging methods, we show that phosphorylation of Saccharomyces cerevisiae Sae2 controls its capacity to promote the Mre11-Rad50-Xrs2 (MRX) nuclease to...

Consortium of Swiss Academic Libraries

Cholesterol Transport and Regulation in the Mammary Gland

Ontsouka, Edgar ; Albrecht, Christiane

In: Journal of Mammary Gland Biology and Neoplasia, 2014, vol. 19, no. 1, p. 43-58

Université de Fribourg

Transcriptome analysis reveals a major impact of JAK protein tyrosine kinase 2 (Tyk2) on the expression of interferon-responsive and metabolic genes

Vogl, Claus ; Flatt, Thomas ; Fuhrmann, Bernd ; Hofmann, Elisabeth ; Wallner, Barbara ; Stiefvater, Rita ; Kovarik, Pavel ; Strobl, Birgit ; Müller, Mathias

In: BMC Genomics, 2010, vol. 11, no. 199, p. 1-19

Background: Tyrosine kinase 2 (Tyk2), a central component of Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling, has major effects on innate immunity and inflammation. Mice lacking Tyk2 are resistant to endotoxin shock induced by lipopolysaccharide (LPS), and Tyk2 deficient macrophages fail to efficiently induce interferon alpha/beta after LPS treatment....