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Ultrastructure of activated mouse platelets: A qualitative scanning electron microscopy study

✍ Scribed by E. Pretorius; H.M. Oberholzer; E. Smit

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
150 KB
Volume
71
Category
Article
ISSN
1059-910X

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✦ Synopsis

Abstract

Platelets form an integral part of the coagulation process, and their ultrastructure can provide valuable information regarding diseases associated with hemostasis. During coagulation, platelets aggregate; this aggregation can be achieved in vitro, by adding thrombin to platelet‐rich plasma. Previous research showed that human thrombin could be used successfully to activate mouse platelets. When conservative changes are included, the amino acid similarity between human and mouse thrombin is ∼75%. In this qualitative study, we compare the ultrastructure of mouse platelet aggregates activated by human thrombin as well as two concentrations of mouse thrombin, using the scanning electron microscope. Results show that both human and mouse thrombin activate platelets to form aggregates with typical pseudopodia formation. Magnification up to 250,000Γ— showed membrane morphology with the open canalicular system pores visible in both the mouse‐ and human‐activated platelets. It is therefore concluded that mouse platelets can be successfully aggregated using either mouse or human thrombin. Microsc. Res. Tech. 2008. Β© 2008 Wiley‐Liss, Inc.

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