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Updated: Sep 29, 2025

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Platelets, a Key Cell in Inflammation and Atherosclerosis Progression.

Ricardo Huilcaman1,2, Whitney Venturini1,3, Lucia Fuenzalida1

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Platelets are crucial in cardiovascular diseases and atherosclerosis. Recent findings highlight their role in inflammation and potentially direct plaque formation, expanding our understanding beyond hemostasis.

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Area of Science:

  • Cardiovascular Research
  • Immunology
  • Hematology

Background:

  • Platelets are well-known for their role in thrombosis and hemostasis.
  • Emerging evidence implicates platelets in the early stages of atherosclerosis, including lesion development.
  • The function of platelets as modulators of inflammation is a recent area of investigation.

Purpose of the Study:

  • To review the multifaceted roles of platelets in atherosclerosis.
  • To explore platelet interactions with other cells and the endothelium.
  • To discuss the regulation of platelet activity in the context of cardiovascular disease.

Main Methods:

  • Literature review of studies on platelet function in atherosclerosis.
  • Analysis of research on platelet-secreted factors and cell recruitment.
  • Examination of evidence for platelet transmigration across the endothelium.

Main Results:

  • Platelets actively recruit immune cells like monocytes and lymphocytes to inflammatory sites.
  • Platelet secretory products contribute to the inflammatory milieu of atherosclerotic lesions.
  • Evidence suggests platelets can cross the endothelium, acting as direct mediators of plaque progression.

Conclusions:

  • Platelets are key players in atherosclerosis, influencing both early lesion formation and later progression.
  • Understanding platelet-driven inflammation is critical for developing new therapeutic strategies.
  • Platelet interactions offer novel targets for managing cardiovascular diseases.