<abstract xmlns="http://www.w3.org/1999/xhtml">

<bold>Introduction</bold>: Sticky platelet syndrome (SPS) is referred to as a platelet hyperaggregability triggered by low concentrations of platelet agonists adenosine diphosphate (ADP) and/or epinephrine (EPI). Platelet aggregation with other inducers (collagen, arachidonic acid, ristocetin, and thrombin) remains within a normal range. MicroRNAs (miRNAs) are small, non-coding RNA molecules that play an important role in post-transcriptional regulation of protein expression. More recently, several studies show that the platelets are an abundant source of miRNAs and that the miRNA expression profiles within platelets correlate with the platelet reactivity.
<bold>Aim</bold>: The principle objective of this article is to describe the method which we developed for the preparation of the pure platelet samples and report the results of this method. These final pure platelet samples are intended to be the first step for the platelet miRNA testing.
<bold>Methods</bold>: The blood samples from 50 subjects were examined in the study. Then, the platelet rich plasma (PRP) samples obtained by centrifugation of the patient blood samples were used for our experiments. Subsequently, the erythrocytes and leucocytes remaining in PRP sample were magnetically labelled by CD45 Microbeads and CD235a Microbeads. After incubation the PRP sample passed through the magnetic separation system and the magnetically labelled cells (erythrocytes and leucocytes) were retained within the column of separator. The number of cells in the final PRP samples was measured by the blood cell analyser.
<bold>Results and conclusion</bold>: We successfully developed and optimized the effective and reproducible method for magnetic separation of platelets, resulting in the leukocyte-depleted and erythrocyte-depleted platelet samples, which can be used for further genetic analyses.
</abstract>

Introduction: Sticky platelet syndrome (SPS) is referred to as a platelet hyperaggregability triggered by low concentrations of platelet agonists adenosine diphosphate (ADP) and/or epinephrine (EPI). Platelet aggregation with other inducers (collagen, arachidonic acid, ristocetin, and thrombin) remains within a normal range. MicroRNAs (miRNAs) are small, non-coding RNA molecules that play an important role in post-transcriptional regulation of protein expression. More recently, several studies show that the platelets are an abundant source of miRNAs and that the miRNA expression profiles within platelets correlate with the platelet reactivity.
Aim: The principle objective of this article is to describe the method which we developed for the preparation of the pure platelet samples and report the results of this method. These final pure platelet samples are intended to be the first step for the platelet miRNA testing.
Methods: The blood samples from 50 subjects were examined in the study. Then, the platelet rich plasma (PRP) samples obtained by centrifugation of the patient blood samples were used for our experiments. Subsequently, the erythrocytes and leucocytes remaining in PRP sample were magnetically labelled by CD45 Microbeads and CD235a Microbeads. After incubation the PRP sample passed through the magnetic separation system and the magnetically labelled cells (erythrocytes and leucocytes) were retained within the column of separator. The number of cells in the final PRP samples was measured by the blood cell analyser.
Results and conclusion: We successfully developed and optimized the effective and reproducible method for magnetic separation of platelets, resulting in the leukocyte-depleted and erythrocyte-depleted platelet samples, which can be used for further genetic analyses.

Our First Experience with Magnetic Separation of Platelets for Analyses of Platelet MicroRNA in Patients with Sticky Platelet Syndrome

Department of Hematology and Transfusiology, National Centre of Hemostasis and Thrombosis, Jessenius Faculty of Medicine in Martin

Comenius University in Bratislava, Martin University Hospital

Divison of Molecular Medicine, Biomedical Center Martin Jessenius Faculty of Medicine in Martin

Acta Medica Martiniana

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Introduction: Sticky platelet syndrome (SPS) is referred to as a platelet hyperaggregability triggered by low concentrations of platelet agonists adenosine...

Our First Experience with Magnetic Separation of Platelets for Analyses of Platelet MicroRNA in Patients with Sticky Platelet Syndrome

Publié en ligne: 05 déc. 2019

Pages: 88 - 94

Reçu: 07 mars 2019

Accepté: 04 sept. 2019

DOI: https://doi.org/10.2478/acm-2019-0012

Mots clés
platelet, magnetic separation, sticky platelet syndrome, platelet miRNA

© 2019 L Vadelova et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Our First Experience with Magnetic Separation of Platelets for Analyses of Platelet MicroRNA in Patients with Sticky Platelet Syndrome

Publié en ligne: 05 déc. 2019

Pages: 88 - 94

Reçu: 07 mars 2019

Accepté: 04 sept. 2019

DOI: https://doi.org/10.2478/acm-2019-0012

Mots clésplatelet, magnetic separation, sticky platelet syndrome, platelet miRNA

© 2019 L Vadelova et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
platelet, magnetic separation, sticky platelet syndrome, platelet miRNA