Publications de Mitko Dimitrov

The metalloprotease ADAMTS4 generates N-truncated A4-x species and marks oligodendrocytes as a source of amyloidogenic peptides in Alzheimer's disease

Patrick Fraering, Mitko Dimitrov, Hermeto Gerber, Sandra Lehmann

Brain accumulation and aggregation of amyloid- (A) peptides is a critical step in the pathogenesis of Alzheimer's disease (AD). Full-length A peptides (mainly A1-40 and A1-42) are produced through sequential proteolytic cleavage of the amyloid precursor pr ...

SPRINGER2019

Zinc and Copper Differentially Modulate Amyloid Precursor Protein Processing by -Secretase and Amyloid- Peptide Production

Patrick Fraering, Mitko Dimitrov, Hermeto Gerber, Guillermo Miguel Garcia Osuna

Recent evidence suggests involvement of biometal homeostasis in the pathological mechanisms in Alzheimer's disease (AD). For example, increased intracellular copper or zinc has been linked to a reduction in secreted levels of the AD-causing amyloid- peptid ...

Amer Soc Biochemistry Molecular Biology Inc2017

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

Patrick Fraering, Mitko Dimitrov, Hermeto Gerber, Maria Luna Perciato, Jingjing Chen, Andrea Rinaldi

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 ...

Nature Publishing Group2016

Shedding of neurexin 3 beta ectodomain by ADAM10 releases a soluble fragment that affects the development of newborn neurons

Patrick Fraering, Erika Myrna Borcel Novoa, Mitko Dimitrov, Magda Maria Palczynska, Giorgio Ulrich, Marine Krzisch

Neurexins are transmembrane synaptic cell adhesion molecules involved in the development and maturation of neuronal synapses. In the present study, we report that Nrxn3 beta is processed by the metalloproteases ADAM10, ADAM17, and by the intramembrane-clea ...

Nature Research2016

The adipocyte differentiation protein APMAP is an endogenous suppressor of Aβ production in the brain

Bernard Schneider, Patrick Fraering, Mitko Dimitrov, Sébastien Mosser, Justine Pascual, Alexandre Matz

The deposition of amyloid-beta (Aβ) aggregates in the brain is a major pathological hallmark of Alzheimer's disease (AD). Aβ is generated from the cleavage of C-terminal fragments of the amyloid precursor protein (APP-CTFs) by γ-secretase, an intramembrane ...

Oxford University Press2015

Identification of new Presenilin-1 phosphosites: implication for gamma-secretase activity and A beta production

Patrick Fraering, Romain Hamelin, Mitko Dimitrov, Marc Moniatte, Sébastien Mosser, Alexandre Matz, Blanka Halamoda

An important pathological hallmark of Alzheimer's disease (AD) is the deposition of amyloid-beta (A) peptides in the brain parenchyma, leading to neuronal death and impaired learning and memory. The protease -secretase is responsible for the intramembrane ...

Wiley-Blackwell2015

Production of active glycosylation-deficient gamma-secretase complex for crystallization studies

Florian Maria Wurm, David Hacker, Patrick Fraering, Virginie Sandra Braman, Mitko Dimitrov, Hermeto Gerber, Andres Ricardo Lopez Robles

Alzheimer's disease (AD)-associated gamma-secretase is a ubiquitously expressed multi-subunit protease complex embedded in the lipid bilayer of cellular compartments including endosomes and the plasma membrane. Although gamma-secretase is of crucial intere ...

Wiley-Blackwell2015

Pharmacological and biochemical assessment of γ-secretase-mediated APP processing involved in Alzheimer's disease

Mitko Dimitrov

EPFL2014

Perturbations of the Straight Transmembrane alpha-Helical Structure of the Amyloid Precursor Protein Affect Its Processing by gamma-Secretase

Matteo Dal Peraro, Patrick Fraering, Mitko Dimitrov, Thomas Lemmin

Background: Amyloid- neurotoxicity depends on the specificity of the proteolytic cleavage of the amyloid precursor protein (APP) transmembrane domain. Results: The APP transmembrane -helix is straight in a biological membrane bilayer. Conclusion: The flexi ...

American Society for Biochemistry and Molecular Biology2014

The Amyloid Precursor Protein Maintains an Ideal&Alpha-Helical Conformation in the Lipid Bilayer

Matteo Dal Peraro, Patrick Fraering, Mitko Dimitrov, Thomas Lemmin

Cell Press2014