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Consortium of Swiss Academic Libraries

α-Synuclein lipoprotein nanoparticles

Eichmann, Cédric ; Bibow, Stefan ; Riek, Roland

In: Nanotechnology Reviews, 2017, vol. 6, no. 1, p. 105-110

Université de Fribourg

Methyl-branched lipids promote the membrane adsorption of α-synuclein by enhancing shallow lipid-packing defects

Garten, Matthias ; Prévost, Coline ; Cadart, Clotilde ; Gautier, Romain ; Bousset, Luc ; Melki, Ronald ; Bassereau, Patricia ; Vanni, Stefano

In: Physical Chemistry Chemical Physics, 2015, vol. 17, no. 24, p. 15589–15597

Alpha-synuclein (AS) is a synaptic protein that is directly involved in Parkinson's disease due to its tendency to form protein aggregates. Since AS aggregation can be dependent on the interactions between the protein and the cell plasma membrane, elucidating the membrane binding properties of AS is of crucial importance to establish the molecular basis of AS aggregation into toxic fibrils....

Università della Svizzera italiana

Proteasomal and lysosomal clearance of faulty secretory proteins : ER-associated degradation (ERAD) and ER-to-lysosome-associated degradation (ERLAD) pathways

Fregno, Ilaria ; Molinari, Maurizio

In: Critical reviews in biochemistry and molecular biology, 2019, vol. 54, no. 2, p. 153-163

About 40% of the eukaryotic cell’s proteins are inserted co- or post-translationally in the endoplasmic reticulum (ER), where they attain the native structure under the assistance of resident molecular chaperones and folding enzymes. Subsequently, these proteins are secreted from cells or are transported to their sites of function at the plasma membrane or in organelles of the secretory and ...

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...

Université de Fribourg

Proteomics-based monitoring of pathway activity reveals that blocking diacylglycerol biosynthesis rescues from alpha-synuclein toxicity

Soste, Martin ; Charmpi, Konstantina ; Lampert, Fabienne ; Gerez, Juan Atilio ; Oostrum, Marcvan ; Malinovska, Liliana ; Boersema, Paul Jonathan ; Prymaczok, Natalia Cecilia ; Riek, Roland ; Peter, Matthias ; Vanni, Stefano ; Beyer, Andreas ; Picotti, Paola

In: Cell Systems, 2019, vol. 9, no. 3, p. 309-320.e8

Proteinaceous inclusions containing alpha-synuclein (α-Syn) have been implicated in neuronal toxicity in Parkinson’s disease, but the pathways that modulate toxicity remain enigmatic. Here, we used a targeted proteomic assay to simultaneously measure 269 pathway activation markers and proteins deregulated by α-Syn expression across a panel of 33 Saccharomyces cerevisiae strains that...

Université de Fribourg

Phosphorylation of mitochondrial matrix proteins regulates their selective mitophagic degradation

Kolitsida, Panagiota ; Zhou, Jianwen ; Rackiewicz, Michal ; Nolic, Vladimir ; Dengjel, Jörn ; Abeliovich, Hagai

In: Proceedings of the National Academy of Sciences, 2019, vol. 116, no. 41, p. 20517–20527

Mitophagy is an important quality-control mechanism in eukaryotic cells, and defects in mitophagy correlate with aging phenomena and neurodegenerative disorders. It is known that different mitochondrial matrix proteins undergo mitophagy with very different rates but, to date, the mechanism underlying this selectivity at the individual protein level has remained obscure. We now present...

Université de Fribourg

HUWE1 E3 ligase promotes PINK1/PARKIN-independent mitophagy by regulating AMBRA1 activation via IKKα

Rita, Anthea Di ; Peschiaroli, Angelo ; D?Acunzo, Pasquale ; Strobbe, Daniela ; Hu, Zehan ; Gruber, Jens ; Nygaard, Mads ; Lambrughi, Matteo ; Melino, Gerry ; Papaleo, Elena ; Dengjel, Jörn ; Alaoui, Said El ; Campanella, Michelangelo ; Dötsch, Volker ; Rogov, Vladimir V. ; Strappazzon, Flavie ; Cecconi, Francesco

In: Nature Communications, 2018, vol. 9, no. 1, p. 3755

The selective removal of undesired or damaged mitochondria by autophagy, known as mitophagy, is crucial for cellular homoeostasis, and prevents tumour diffusion, neurodegeneration and ageing. The pro-autophagic molecule AMBRA1 (autophagy/beclin-1 regulator-1) has been defined as a novel regulator of mitophagy in both PINK1/PARKIN-dependent and -independent systems. Here, we identified the E3...