Platelets release mitochondria serving as substrate for bactericidal group IIA-secreted phospholipase A2 to promote inflammation

LH Boudreau, AC Duchez, N Cloutier… - Blood, The Journal …, 2014 - ashpublications.org
Mitochondrial DNA (mtDNA) is a highly potent inflammatory trigger and is reportedly found
outside the cells in blood in various pathologies. Platelets are abundant in blood where they …

Activated platelets can deliver mRNA regulatory Ago2• microRNA complexes to endothelial cells via microparticles

B Laffont, A Corduan, H Plé, AC Duchez… - Blood, The Journal …, 2013 - ashpublications.org
Platelets play a crucial role in the maintenance of hemostasis, as well as in thrombosis.
Upon activation, platelets release small membrane-bound microparticles (MPs) containing …

The exposure of autoantigens by microparticles underlies the formation of potent inflammatory components: the microparticle‐associated immune complexes

N Cloutier, S Tan, LH Boudreau, C Cramb… - EMBO molecular …, 2013 - embopress.org
Immunoglobulins, antigens and complement can assemble to form immune complexes (IC).
ICs can be detrimental as they propagate inflammation in autoimmune diseases. Like ICs …

Platelets can enhance vascular permeability

N Cloutier, A Paré, RW Farndale… - Blood, The Journal …, 2012 - ashpublications.org
Platelets survey blood vessels, searching for endothelial damage and preventing loss of
vascular integrity. However, there are circumstances where vascular permeability increases …

Platelet microparticles are internalized in neutrophils via the concerted activity of 12-lipoxygenase and secreted phospholipase A2-IIA

AC Duchez, LH Boudreau, GS Naika… - Proceedings of the …, 2015 - National Acad Sciences
Platelets are anucleated blood elements highly potent at generating extracellular vesicles
(EVs) called microparticles (MPs). Whereas EVs are accepted as an important means of …

Influenza virus H1N1 activates platelets through FcγRIIA signaling and thrombin generation

E Boilard, G Paré, M Rousseau… - Blood, The Journal …, 2014 - ashpublications.org
Platelets play crucial functions in hemostasis and the prevention of bleeding. During H1N1
influenza A virus infection, platelets display activation markers. The platelet activation …

Platelets release pathogenic serotonin and return to circulation after immune complex-mediated sequestration

N Cloutier, I Allaeys, G Marcoux… - Proceedings of the …, 2018 - National Acad Sciences
There is a growing appreciation for the contribution of platelets to immunity; however, our
knowledge mostly relies on platelet functions associated with vascular injury and the …

Platelets release mitochondrial antigens in systemic lupus erythematosus

I Melki, I Allaeys, N Tessandier, T Lévesque… - Science Translational …, 2021 - science.org
The accumulation of DNA and nuclear components in blood and their recognition by
autoantibodies play a central role in the pathophysiology of systemic lupus erythematosus …

[HTML][HTML] Revealing the diversity of extracellular vesicles using high-dimensional flow cytometry analyses

G Marcoux, AC Duchez, N Cloutier, P Provost… - Scientific reports, 2016 - nature.com
Extracellular vesicles (EV) are small membrane vesicles produced by cells upon activation
and apoptosis. EVs are heterogeneous according to their origin, mode of release …

[HTML][HTML] Detection and Quantification of Microparticles from Different Cellular Lineages Using Flow Cytometry. Evaluation of the Impact of Secreted Phospholipase A2 …

M Rousseau, C Belleannee, AC Duchez, N Cloutier… - PloS one, 2015 - journals.plos.org
Microparticles, also called microvesicles, are submicron extracellular vesicles produced by
plasma membrane budding and shedding recognized as key actors in numerous physio …