Do miRNAs Have a Role in Platelet Function Regulation?

A Garcia1, Sylvie Dunoyer-Geindre1, P Fontana1,2

  • 1Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland.

Hamostaseologie
|June 30, 2021
PubMed

Insights

MicroRNAs (miRNAs) regulate gene expression and are linked to cardiovascular events. Further research is needed to understand how these small RNAs impact platelet function and disease progression.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cardiovascular Research

Background:

  • MicroRNAs (miRNAs) are non-coding RNAs that regulate gene expression by inhibiting translation.
  • miRNAs are implicated in various cellular processes and disease states.
  • Circulating miRNAs are being investigated as potential biomarkers for cardiovascular diseases.

Purpose of the Study:

  • To review recent advances in translational research on the role of miRNAs in platelet function.
  • To highlight the need for functional validation of miRNAs in cardiovascular event recurrence.

Main Methods:

  • Literature review of translational research studies.
  • Analysis of existing clinical studies on circulating miRNAs and cardiovascular events.

Main Results:

  • Clinical studies show associations between circulating miRNA levels and platelet reactivity or cardiovascular event recurrence.
  • Significant heterogeneity exists in study designs, sample types, and methodologies.
  • A lack of functional validation hinders causal relationship identification.

Conclusions:

  • Understanding miRNA regulation of platelet function is crucial for developing diagnostic and prognostic markers.
  • Standardized methodologies and functional validation are essential for future research in this field.

Related Concept Videos

Structure and Function of Platelets01:18

Structure and Function of Platelets

The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
2.3K
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.3K
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
22.6K
Formation of the Platelet Plug01:22

Formation of the Platelet Plug

The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
7.9K
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors01:20

Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors

Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
789