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Concept

Thrombocyte

Publications associées (30)

Acute TNF alpha levels predict cognitive impairment 6-9 months after COVID-19 infection

Dimitri Nestor Alice Van De Ville, Alessandra Griffa, Idris Guessous, Alexandre Cionca

Background: A neurocognitive phenotype of post-COVID-19 infection has recently been described that is characterized by a lack of awareness of memory impairment (i.e., anosognosia), altered functional connectivity in the brain's default mode and limbic netw ...

PERGAMON-ELSEVIER SCIENCE LTD2023

In vivo transcriptomic profiling using cell encapsulation identifies effector pathways of systemic aging

Nicolas Bouche, Patrick Descombes, Christophe Boss, Omid Mashinchian, Jérome Feige, Filippo De Franceschi

Sustained exposure to a young systemic environment rejuvenates aged organisms and promotes cellular function. However, due to the intrinsic complexity of tissues it remains challenging to pinpoint niche-independent effects of circulating factors on specifi ...

2022

How Vibrio cholerae adapts to the environment: from cell shape transitions to antagonistic behavior

Leonardo Filipe Lemos Rocha

The bacterium Vibrio cholerae is the causative agent of the diarrheal disease cholera, which affects millions of people every year. Apart from being a human pathogen, V. cholerae is also a common member of aquatic habitats. Whilst the mechanism that allow ...

EPFL2022

Novel trehalose-based excipients for stabilizing nebulized anti-SARS-CoV-2 antibody

Sandrine Gerber, Solène Marcelle Françoise Marie Passemard, François Rémi Pierre Noverraz

COVID-19 is caused by the infection of the lungs by SARS-CoV-2. Monoclonal antibodies, such as sotrovimab, showed great efficiency in neutralizing the virus before its internalization by lung epithelial cells. However, parenteral routes are still the prefe ...

2023

Enforced dimerization between XBP1s and ATF6f enhances the protective effects of the UPR in models of neurodegeneration

Hilal Lashuel, Sonia Donzelli

Alteration to endoplasmic reticulum (ER) proteostasis is observed in a variety of neurodegenerative diseases associated with abnormal protein aggregation. Activation of the unfolded protein response (UPR) enables an adaptive reaction to recover ER proteost ...

2021

S-acylation by ZDHHC20 targets ORAI1 channels to lipid rafts for efficient Ca2+ signaling by Jurkat T cell receptors at the immune synapse

Françoise Gisou van der Goot Grunberg, Laurence Gouzi Abrami

Efficient immune responses require Ca2+ fluxes across ORAI1 channels during engagement of T cell receptors (TCR) at the immune synapse (IS) between T cells and antigen presenting cells. Here, we show that ZDHHC20-mediated S-acylation of the ORAI1 channel a ...

eLIFE SCIENCES PUBL LTD2021

Crystalline poly(triazine imide) membranes and uses thereof

Kumar Varoon Agrawal, Luis Francisco Villalobos Vazquez de la Parra

The invention relates to methods for the preparation of highly crystalline poly(triazine imide) in the form of platelets, atom-thick layers or membranes thereof and resulting products thereof, in particular useful for the preparation of gas separation memb ...

2021

Standardization and Validation of Fluorescence-Based Quantitative Assay to Study Human Platelet Adhesion to Extracellular-Matrix in a 384-Well Plate

Nikolaos Stergiopoulos, Augusto Martins Lima, François Cuenot

Platelets play a crucial role in the immunological response and are involved in the pathological settings of vascular diseases, and their adhesion to the extracellular matrix is important to bring leukocytes close to the endothelial cells and to form and s ...

2020

Attenuation of Lamb Modes and SH Waves near cut-off Frequencies

Soumya Yandrapalli

Near cut-off frequencies, the shear horizontal (SH) and Lamb modes in a platelet are created by a bulk acoustic wave bouncing up and down between the platelet sides in an almost vertical direction. The small inclination angle corresponds to slow drift of e ...

IEEE2020

Cyclic peptide FXII inhibitor provides safe anticoagulation in a thrombosis model and in artificial lungs

Christian Heinis, Xudong Kong, Jonas Alfred Karl Wilbs, Patrick Andreas Gonschorek, Simon Jan Middendorp, Christina Lamers

Inhibiting thrombosis without generating bleeding risks is a major challenge in medicine. A promising solution may be the inhibition of coagulation factor XII (FXII), because its knock-out or inhibition in animals reduced thrombosis without causing abnorma ...

Nature Research2020

From Patients to Platelets and Back Again: Pharmacological Approaches to Glycoprotein VI, a Thrilling Antithrombotic Target with Minor Bleeding Risks

Nikolaos Stergiopoulos, Augusto Martins Lima

Despite significant advances in the treatment of thrombogenic diseases, antiplatelet therapies are still associated with a high bleeding risk. Consequently, potential benefits of preventing thromboembolic events by pharmacological agents need to be balance ...

GEORG THIEME VERLAG KG2019

An optimized and validated 384-well plate assay to test platelet function in a high-throughput screening format

Nikolaos Stergiopoulos, Olivier Burri, Rodrigo Araujo Fraga Da Silva, Marc Chambon, Augusto Martins Lima, Maiia Bragina, Julien Bortoli Chapalay

Despite significant advances in the treatment of cardiovascular diseases, antiplatelet therapies are still associated with a high risk of hemorrhage. In order to develop new drugs, methods to measure platelet function must be adapted for the high-throughpu ...

TAYLOR & FRANCIS INC2019

Atroxlysin-III, A Metalloproteinase from the Venom of the Peruvian Pit Viper Snake Bothrops atrox (Jergon) Induces Glycoprotein VI Shedding and Impairs Platelet Function

Augusto Martins Lima

Atroxlysin-III (Atr-III) was purified from the venom of Bothrops atrox. This 56-kDa protein bears N-linked glycoconjugates and is a P-III hemorrhagic metalloproteinase. Its cDNA-deduced amino acid sequence reveals a multidomain structure including a propro ...

2019

Nacre-inspired Hard and Tough Materials

Esther Amstad, Huachuan Du

Nature fabricates materials with properties that are difficult to reproduce with manmade counterparts. For example, nacre, composed of layers of CaCO3 crystals that are interspaced with small quantities of organic components, is one of the toughest known b ...

2019

The heparin binding domain of von Willebrand factor binds to growth factors and promotes angiogenesis in wound healing

Jeffrey Alan Hubbell, Matthias Lütolf, Yoji Tabata

During wound healing, the distribution, availability, and signaling of growth factors (GFs) are orchestrated by their binding to extracellular matrix components in the wound microenvironment. Extracellular matrix proteins have been shown to modulate angiog ...

AMER SOC HEMATOLOGY2019

Comparing the anti-bacterial performance of chlorination and electrolysis post-treatments in a hand washing water recycling system

Odile Marie Clotilde Hervás de Nalda-Larivé

Innovative solutions are necessary to enable the decentralized recycling of greywater for applications requiring high-quality water, such as hand washing. While physical barriers such as ultrafiltration membranes effectively prevent the passage of bacteria ...

2019

Photothermal Off-Resonance Tapping for Rapid and Gentle Atomic Force Imaging of Live Cells

Georg Fantner, John McKinney, Adrian Pascal Nievergelt, Haig Alexander Eskandarian, Charlène Cécile Geneviève Brillard

Imaging living cells by atomic force microscopy (AFM) promises not only high-resolution topographical data, but additionally, mechanical contrast, both of which are not obtainable with other microscopy techniques. Such imaging is however challenging, as ce ...

2018

Development of cyclic peptide inhibitors of coagulation factor XII and matrix metalloproteinase 2

Jonas Alfred Karl Wilbs

Peptides represent a promising molecular class for drug development. They combine several strengths of small molecules (e.g. efficient tissue diffusion, low immunogenicity and access to chemical synthesis) and key properties of biologics such as monoclonal ...

EPFL2018

Human Kunitz-type protease inhibitor engineered for enhanced matrix retention extends longevity of fibrin biomaterials

Jeffrey Alan Hubbell, Peter Frey, Hans Mattias Larsson, Priscilla Suhasna Maithili Briquez

Aprotinin is a broad-spectrum serine protease inhibitor used in the clinic as an anti-fibrinolytic agent in fibrin-based tissue sealants. However, upon re-exposure, some patients suffer from hypersensitivity immune reactions likely related to the bovine or ...

2017

Self-Assembled Nanomicelles as MRI Blood-Pool Contrast Agent

Lothar Helm, Anne-Sophie Chauvin

Gadolinium‐loaded nanomicelles show promise as future magnetic resonance imaging (MRI) contrast agents (CAs). Their increased size and high gadolinium (Gd) loading gives them an edge in proton relaxivity over smaller molecular Gd‐complexes. Their size and ...

2017