Related Experiment Video
Updated: Jun 22, 2026
A Simple Protocol for Platelet-mediated Clumping of Plasmodium falciparum-infected Erythrocytes in a Resource Poor Setting
Published on: May 16, 2013
Platelet power: sticky problems for sticky parasites?
1Institute of Genetics, School of Biology, University of Nottingham, NG7 2UH, UK. richard.pleass@nottingham.ac.uk
Abstract:
Platelets might have a crucial role in the pathogenesis of both human and rodent malarias by assisting in the sequestration of infected erythrocytes within the cerebral vasculature. However, recent elegant work by McMorran et al. suggests that they are also involved in innate protection during the early stages of infection. Here, we discuss the implications of their important findings in the context of immunity to malaria.
Insights
Platelets play a dual role in malaria, potentially aiding disease progression by sequestering infected red blood cells, but also offering innate protection early in infection.
Area of Science:
- Immunology
- Pathology
- Infectious Diseases
Background:
- Platelets are implicated in malaria pathogenesis, particularly in cerebral malaria, by facilitating the sequestration of infected erythrocytes in blood vessels.
- The precise role of platelets in malaria immunity remains incompletely understood, with potential contributions to both disease severity and host defense.
Purpose of the Study:
- To discuss the recent findings by McMorran et al. regarding the role of platelets in innate immunity during early malaria infection.
- To contextualize these findings within the broader understanding of immunity to malaria.
Main Methods:
- Review and discussion of existing literature, including the findings of McMorran et al.
Main Results:
- Recent research suggests platelets are involved in innate protection during the early stages of malaria infection.
- This contrasts with their known role in aiding the sequestration of infected erythrocytes, a key factor in malaria pathogenesis.
Conclusions:
- Platelets exhibit a complex and potentially dichotomous role in malaria.
- Further research is needed to fully elucidate the mechanisms by which platelets influence malaria immunity and pathogenesis.
Related Concept Videos
01:18Structure 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 platelets, with...
01:22Formation 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...