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Malignant optic glioma - the spectrum of disease in a case series

Traber, G L.

In: Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie, ///-

Université de Fribourg

Multiple cryoinjuries modulate the efficiency of zebrafish heart regeneration

Bise, Thomas ; Sallin, Pauline ; Pfefferli, Catherine ; Jaźwińska, Anna

In: Scientific Reports, 2020, vol. 10, no. 1, p. 11551

Zebrafish can regenerate their damaged hearts throughout their lifespan. It is, however, unknown, whether regeneration remains effective when challenged with successive cycles of cardiac damage in the same animals. Here, we assessed ventricular restoration after two, three and six cryoinjuries interspaced by recovery periods. Using transgenic cell-lineage tracing analysis, we demonstrated...

Université de Fribourg

Role of akt activation in PARP inhibitor resistance in cancer

Gallyas, Ferenc ; Sumegi, Balazs ; Szabo, Csaba

In: Cancers, 2020, vol. 12, no. 3, p. 532

Poly(ADP-ribose) polymerase (PARP) inhibitors have recently been introduced in the therapy of several types of cancers not responding to conventional treatments. However, de novo and acquired PARP inhibitor resistance is a significant limiting factor in the clinical therapy, and the underlying mechanisms are not fully understood. Activity of the cytoprotective phosphatidylinositol-3 kinase...

Université de Fribourg

Impact of an intra-abdominal cooling device during open kidney transplantation in pigs

Longchamp, Alban ; Meier, Raphael P. H. ; Colucci, Nicola ; Balaphas, Alexandre ; Orci, Lorenzo A. ; Nastasi, Antonio ; Longchamp, Grgoire ; Moll, Solange ; Klauser, Antoine ; Pascual, Manuel ; Lazeyras, Franois ; Corpataux, Jean-Marc ; Bühler, Leo

In: Swiss Medical Weekly, 2019, vol. 149, no. 5152, p. -

Transplantation of kidneys from deceased donors is still associated with a high rate of postoperative renal dysfunction. During implantation into the recipient, the kidney rewarms. This second warm ischaemia time, which is not monitored, is harmful especially if prolonged. We recently developed an intra-abdominal cooling device that efficiently prevents kidney rewarming during robotic...

Université de Fribourg

Myosin 1b regulates nuclear AKT activation by preventing localization of PTEN in the nucleus

Yu, Yi ; Xiong, Yuyan ; Ladeiras, Diogo ; Yang, Zhihong ; Ming, Xiu-Fen

In: iScience, 2019, vol. 19, p. 39–53

Insulin-induced AKT activation is dependent on phosphoinositide 3-kinase and opposed by tumor suppressor phosphatase and tensin homolog (PTEN). Our previous study demonstrates that myosin 1b (MYO1B) mediates arginase-II-induced activation of mechanistic target of rapamycin complex 1 that is regulated by AKT. However, the role of MYO1B in AKT activation is unknown. Here we show that silencing...

Université de Fribourg

4,4’Dimethoxychalcone: a natural flavonoid that promotes health through autophagy-dependent and -independent effects

Zimmermann, Andreas ; Kainz, Katharina ; Hofer, Sebastian J. ; Bauer, Maria A. ; Schroeder, Sabrina ; Dengjel, Jörn ; Pietrocola, Federico ; Kepp, Oliver ; Ruckenstuhl, Christoph ; Eisenberg, Tobias ; Sigrist, Stephan J. ; Madeo, Frank ; Carmona-Gutierrez, Didac ; Kroemer, Guido

In: Autophagy, 2019, vol. 15, no. 9, p. 1662–1664

The age-induced deterioration of the organism results in detrimental and ultimately lethal pathologies. The process of aging itself involves a plethora of different mechanisms that should be subverted concurrently to delay and/or prevent age- related maladies. We have identified a natural compound, 4,4ʹ-dimethoxychalcone (DMC), which promotes longevity in yeast, worms and flies, and protects...