PUBLICATION
MicroRNA-126 is a regulator of platelet-supported thrombin generation
- Authors
- Zapilko, V., Fish, R.J., Garcia, A., Reny, J.L., Dunoyer-Geindre, S., Lecompte, T., Neerman-Arbez, M., Fontana, P.
- ID
- ZDB-PUB-200613-10
- Date
- 2020
- Source
- Platelets 31(6): 746-755 (Journal)
- Registered Authors
- Fish, Richard, Neerman-Arbez, Marguerite, Zapilko, Veronika
- Keywords
- Platelet, platelet reactivity, thrombin, thrombosis, zebrafish
- MeSH Terms
-
- Animals
- Blood Platelets/metabolism*
- Humans
- MicroRNAs/blood*
- MicroRNAs/genetics
- Thrombin/genetics
- Thrombin/metabolism*
- Zebrafish
- PubMed
- 32529909 Full text @ Platelets
Citation
Zapilko, V., Fish, R.J., Garcia, A., Reny, J.L., Dunoyer-Geindre, S., Lecompte, T., Neerman-Arbez, M., Fontana, P. (2020) MicroRNA-126 is a regulator of platelet-supported thrombin generation. Platelets. 31(6):746-755.
Abstract
Circulating microRNA (miRNA) expression profiles correlate with platelet reactivity. MiR-126 is a promising candidates in this regard. We generated a transgenic zebrafish line with thrombocyte-specific overexpression of miR-126. Laser injury of the posterior cardinal vein of 5 day-old larvae was performed with or without antithrombotic pre-treatment. Platelet-like structures (PLS) derived from human megakaryocytes transfected with miR-126 were also evaluated for procoagulant activity. Finally, we studied the correlation between miR-126 level and thrombin generation markers in a cohort of stable cardiovascular patients. Control zebrafish developed small thrombocyte-rich thrombi at the site of vessel injury, without vessel occlusion. The miR-126 transgenic line developed an occluding thrombus in 75% (95% CI: 51-91%) of larvae. Pre-treatment with the direct thrombin inhibitor argatroban, but not aspirin, prevented vessel occlusion in the transgenic line (0% occlusion, 95%CI: 0-18%). Upon activation, human PLS showed an increased procoagulant profile after miR-126 transfection compared to control. Finally, the plasma levels of miR-126, but not a control platelet-derived miRNA, correlated with markers of in vivo thrombin generation in a cohort of 185 cardiovascular patients. Our results from three complementary approaches support a key role for miR-126 in platelet-supported thrombin generation and open new avenues in the tailoring of antithrombotic treatment.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping