Volume 59, Issue 7 pp. 2403-2414
BLOOD COMPONENTS

Platelet-derived extracellular vesicles convey mitochondrial DAMPs in platelet concentrates and their levels are associated with adverse reactions

Genevieve Marcoux

Genevieve Marcoux

Department of Infectious Diseases and Immunity, Centre de Recherche du CHU de Québec - Université Laval, Quebec City, Québec, Canada

Equally contributed.Search for more papers by this author
Audrey Magron

Audrey Magron

Department of Infectious Diseases and Immunity, Centre de Recherche du CHU de Québec - Université Laval, Quebec City, Québec, Canada

Equally contributed.Search for more papers by this author
Caroline Sut

Caroline Sut

Université de Lyon, UJM-Saint-Etienne, GIMAP, EA 3064, Saint-Étienne, France

Département Scientifique, Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France

Search for more papers by this author
Audree Laroche

Audree Laroche

Department of Infectious Diseases and Immunity, Centre de Recherche du CHU de Québec - Université Laval, Quebec City, Québec, Canada

Search for more papers by this author
Sandrine Laradi

Sandrine Laradi

Université de Lyon, UJM-Saint-Etienne, GIMAP, EA 3064, Saint-Étienne, France

Département Scientifique, Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France

Search for more papers by this author
Hind Hamzeh-Cognasse

Hind Hamzeh-Cognasse

Université de Lyon, UJM-Saint-Etienne, GIMAP, EA 3064, Saint-Étienne, France

Search for more papers by this author
Isabelle Allaeys

Isabelle Allaeys

Department of Infectious Diseases and Immunity, Centre de Recherche du CHU de Québec - Université Laval, Quebec City, Québec, Canada

Search for more papers by this author
Ophelie Cabon

Ophelie Cabon

Department of Infectious Diseases and Immunity, Centre de Recherche du CHU de Québec - Université Laval, Quebec City, Québec, Canada

Search for more papers by this author
Anne-Sophie Julien

Anne-Sophie Julien

Department of Mathematics and Statistic, Université Laval, Quebec City, Québec, Canada

Search for more papers by this author
Olivier Garraud

Olivier Garraud

Université de Lyon, UJM-Saint-Etienne, GIMAP, EA 3064, Saint-Étienne, France

Search for more papers by this author
Fabrice Cognasse

Corresponding Author

Fabrice Cognasse

Université de Lyon, UJM-Saint-Etienne, GIMAP, EA 3064, Saint-Étienne, France

Département Scientifique, Établissement Français du Sang Auvergne-Rhône-Alpes, Saint-Étienne, France

Equally contributed.

Address reprint requests to: Eric Boilard, PhD, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Faculté de Médecine de l'Université Laval, 2705 Laurier Boulevard, Room T1-49, Québec, QC, Canada G1V 4G2; e-mail: [email protected]; or Fabrice Cognasse, PhD, Etablissement Français du Sang Auvergne-Rhône-Alpes, Département Scientifique, 25 Boulevard Pasteur, 42100 Saint-Etienne, France; e-mail: [email protected].

Search for more papers by this author
Eric Boilard

Corresponding Author

Eric Boilard

Department of Infectious Diseases and Immunity, Centre de Recherche du CHU de Québec - Université Laval, Quebec City, Québec, Canada

Canadian National Transplantation Research Program, Edmonton, Alberta, Canada

Equally contributed.

Address reprint requests to: Eric Boilard, PhD, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Faculté de Médecine de l'Université Laval, 2705 Laurier Boulevard, Room T1-49, Québec, QC, Canada G1V 4G2; e-mail: [email protected]; or Fabrice Cognasse, PhD, Etablissement Français du Sang Auvergne-Rhône-Alpes, Département Scientifique, 25 Boulevard Pasteur, 42100 Saint-Etienne, France; e-mail: [email protected].

Search for more papers by this author
First published: 11 April 2019
Citations: 70
This work was supported by “Amis de Rémi Association” to (FC), the Etablissement Français du Sang (EFS) to (FC and EB), and in part by a foundation grant from the Canadian Institutes of Health Research (CIHR) to EB. EB is the recipient of an investigator award from CIHR. GM has an award from the Canadian Blood Services, and AM is recipient of an award from MITACS.

Abstract

BACKGROUND

Whereas platelet transfusion is a common medical procedure, inflammation still occurs in a fraction of transfused individuals despite the absence of any apparent infectious agents. Platelets can shed membrane vesicles, called extracellular vesicles (EVs), some of which contain mitochondria (mito+EV). With its content of damage-associated molecular pattern (DAMP), the mitochondrion can stimulate the innate immune system. Mitochondrial DNA (mtDNA) is a recognized DAMP detected in the extracellular milieu in numerous inflammatory conditions and in platelet concentrates. We hypothesized that platelet-derived mitochondria encapsulated in EVs may represent a reservoir of mtDNA.

STUDY DESIGN AND METHODS

Herein, we explored the implication of mito+EVs in the occurrence of mtDNA quantified in platelet concentrate supernatants that induced or did not induce transfusion adverse reactions.

RESULTS

We observed that EVs were abundant in platelet concentrates, and platelet-derived mito+EVs were more abundant in platelet concentrates that induced adverse reactions. A significant correlation (rs = 0.73; p < 0.0001) between platelet-derived mito+EV levels and mtDNA concentrations was found. However, there was a nonsignificant correlation between the levels of EVs without mitochondria and mtDNA concentrations (rs = −0.11; p = 0.5112). The majority of the mtDNA was encapsulated into EVs.

CONCLUSION

This study suggests that platelet-derived EVs, such as those that convey mitochondrial DAMPs, may be a useful biomarker for the prediction of potential risk of adverse transfusion reactions. Moreover, our work implies that investigations are necessary to determine whether there is a causal pathogenic role of mitochondrial DAMP encapsulated in EVs as opposed to mtDNA in solution.

CONFLICT OF INTEREST

The authors declare no conflicts of interest.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.