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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.
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 platelets, with...

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Updated: Jul 15, 2026

Purification of Platelets from Mouse Blood

Purification of Platelets from Mouse Blood

Published on: May 7, 2019

A guide to murine platelet structure, function, assays, and genetic alterations.

M Jirouskova¹, A S Shet, G J Johnson

¹Laboratory of Blood and Vascular Biology, Rockefeller University, NY, USA.

Journal of Thrombosis and Haemostasis : JTH

|April 4, 2007

Summary

Murine models are crucial for studying platelet function in hemostasis and thrombosis. This review offers guidance on murine platelet isolation, assays, and genetic studies for researchers.

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A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

Published on: February 14, 2017

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Last Updated: Jul 15, 2026

Purification of Platelets from Mouse Blood

Purification of Platelets from Mouse Blood

Published on: May 7, 2019

Microfluidics in Assessing Platelet Function

Microfluidics in Assessing Platelet Function

Published on: November 8, 2024

A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

A Microfluidic Flow Chamber Model for Platelet Transfusion and Hemostasis Measures Platelet Deposition and Fibrin Formation in Real-time

Published on: February 14, 2017

Area of Science:

* Hematology
* Thrombosis research
* Hemostasis

Background:

* Platelets are vital for hemostasis, thrombosis, and other biological processes.
* Murine models are widely used due to genetic manipulability and similarity to humans.
* Despite differences in size and structure, murine platelets are functionally similar to human platelets.

Purpose of the Study:

* To provide recommendations for collecting, isolating, and processing murine platelets.
* To describe and assess available assays for studying platelet function.
* To review the literature on genetic alterations affecting murine platelet function.

Main Methods:

* Review of existing literature on murine platelet research.
* Description of standard protocols for platelet isolation and processing.
* Analysis of various functional assays for platelet activity.

Main Results:

* Murine models significantly advance the understanding of platelet roles in hemostasis and thrombosis.
* Established protocols and assays enable robust investigation of platelet function.
* Genetic studies in mice reveal critical insights into platelet biology.

Conclusions:

* This review serves as a reference for investigators studying platelet function.
* Standardized methods enhance the reliability and comparability of murine platelet research.
* Murine models are indispensable tools for elucidating platelet contributions to health and disease.