Related Experiment Video
Updated: May 27, 2026
08:34
Production of Autologous Platelet-Rich Plasma for Boosting In Vitro Human Fibroblast Expansion
Published on: February 24, 2021
A journey to produce platelets in vitro
1Puget Sound Blood Center, Seattle, Washington 98104, USA. joannar@psbc.org
Transfusion
|November 15, 2011
Summary
Generating functional platelets from stem cells could solve shortages for transfusions. Understanding megakaryocyte development is key to producing clinical-scale platelets for patients needing transfusions.
Area of Science:
- Hematology and Stem Cell Biology
- Biotechnology and Regenerative Medicine
Background:
- Allogeneic platelet transfusions are critical for managing bleeding and enabling intensive medical treatments like marrow transplants.
- Current platelet supplies face shortages due to high demand and a short product shelf-life of only 5 days.
- Patients undergoing chemotherapy, radiotherapy, or marrow transplants rely heavily on a consistent platelet supply.
Purpose of the Study:
- To investigate the potential of stem cells for producing clinical-scale quantities of functional platelets in bioreactors.
- To understand the regulatory mechanisms governing megakaryocyte development and platelet biogenesis.
- To address the challenge of platelet shortages by developing an alternative supply source.
Main Methods:
- Investigating the proliferation and differentiation capabilities of stem cells.
- Analyzing intracellular and extracellular regulatory mechanisms in megakaryocyte development.
- Studying the biogenesis of functional platelets from mature megakaryocytes.
Main Results:
- The study focuses on the *investigation* phase, outlining the complexity of the process.
- Key regulatory mechanisms at each developmental stage are being elucidated.
- The potential for stem cell-derived platelets in bioreactors is under active research.
Conclusions:
- Harnessing stem cell differentiation offers a promising strategy to overcome platelet supply limitations.
- A comprehensive understanding of megakaryocyte development and platelet biogenesis is essential for this approach.
- This research aims to ensure a stable and scalable source of functional platelets for clinical use.
Related Concept Videos
01:18Structure 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...
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...
01:22Formation of the Platelet Plug
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
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...
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...