Related Experiment Video
Updated: Aug 3, 2025

Analyzing Platelet Subpopulations by Multi-color Flow Cytometry
Published on: June 10, 2025
Morphofunctional Properties of Spindle-Shaped Platelets
1N. V. Sklifosovsky Research Institute of Emergency Medicine, Health Department of Moscow, Moscow, Russia. mcsimmc@yandex.ru.
Morphofunctional properties of spindle-shaped platelets under normal and pathological conditions were studied by the method based on vital staining. In donor blood and plasma isolated by centrifugation at 300g, no spindle-shaped platelets were detected; after centrifugation at 3000g, spindle-shaped platelets were detected in a small amount in 20% samples. During plasma storage at 20-22°C, spindle-shaped platelets appeared after 1-2 days, after 3 days their number increased to 30% and higher. Spindle-shaped platelets contained a small number of granules and did not exhibit active adhesion, while the structure of their membranes was normal after 1-2 days of storage and abnormalities appeared during subsequent storage. Spindle-shaped platelets were found in the blood of patients with acute exogenous poisoning and severe thermal trauma. Spindle-shaped platelets can be used as an additional criterion for assessing the quality of the platelet population.
Morphofunctional properties of spindle-shaped platelets under normal and pathological conditions were studied by the method based on vital staining. In donor blood and plasma isolated by centrifugation at 300g, no spindle-shaped platelets were detected; after centrifugation at 3000g, spindle-shaped platelets were detected in a small amount in 20% samples. During plasma storage at 20-22°C, spindle-shaped platelets appeared after 1-2 days, after 3 days their number increased to 30% and higher. Spindle-shaped platelets contained a small number of granules and did not exhibit active adhesion, while the structure of their membranes was normal after 1-2 days of storage and abnormalities appeared during subsequent storage. Spindle-shaped platelets were found in the blood of patients with acute exogenous poisoning and severe thermal trauma. Spindle-shaped platelets can be used as an additional criterion for assessing the quality of the platelet population.
Related Concept Videos
Structure and Function of Platelets
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...
Formation of the Platelet Plug
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...
Structure and Function of Erythrocytes
The erythrocyte plasma membrane is associated with proteins such as spectrin, which forms a flexible cytoplasmic meshwork. This meshwork allows erythrocytes to twist, turn, become cup-shaped, and regain their biconcave shape as they pass through narrow capillaries. Additionally, erythrocytes can form...
Mechanism of Filopodia Formation
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...

