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Structure and Function of Platelets

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.
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Related Experiment Video

Updated: Jun 3, 2026

Megakaryocyte Differentiation and Platelet Formation from Human Cord Blood-derived CD34+ Cells

Megakaryocyte Differentiation and Platelet Formation from Human Cord Blood-derived CD34⁺ Cells

Published on: December 27, 2017

[In vitro platelet production].

C Dunois-Lardé¹, D Baruch

¹Unité 765, Inserm, 4, avenue de l'Observatoire, 75270 Paris cedex 06, France.

Transfusion Clinique Et Biologique : Journal De La Societe Francaise De Transfusion Sanguine

|March 18, 2011

Summary

This summary is machine-generated.

This review explores the diverse roles of platelets beyond blood clotting, including inflammation and cancer metastasis. It also covers new insights into how platelets are formed from megakaryocytes.

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Last Updated: Jun 3, 2026

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Area of Science:

Hematology
Cell Biology
Oncology

Context:

Platelets are primarily known for hemostasis and thrombosis.
Emerging evidence highlights their involvement in diverse physiological and pathological processes.
Understanding platelet biology extends beyond coagulation.

Purpose:

To provide a comprehensive overview of current knowledge on platelet functions.
To explore the multifaceted roles of platelets in inflammation, immunity, angiogenesis, and metastasis.
To present recent advancements in megakaryocyte differentiation and platelet biogenesis.

Summary:

Platelets exhibit a wide range of functions, including roles in inflammation, immunity, angiogenesis, growth factor delivery, metastasis, and vascular remodeling.
This broad functional capacity suggests novel therapeutic applications for platelets.
Recent research has advanced the understanding of platelet formation from megakaryocytes and direct platelet release.

Impact:

Highlights the potential for novel platelet-based therapies.
Expands the understanding of platelet involvement in various diseases.
Provides insights into megakaryopoiesis and platelet production, crucial for hematological research.