Plasmodium In Vitro Assay
Plasmodium In Vitro Assay - Related Videos
07:39
An In vitro Co-infection Model to Study Plasmodium falciparum-HIV-1 Interactions in Human Primary Monocyte-derived Immune Cells
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Cited by 3 •
2012
We have developed an in vitro malaria-HIV-1 co-infection model to study the impact of Plasmodium falciparum on the HIV-1 replicative cycle in human primary monocyte-derived macrophages. This versatile system can easily be adapted to other primary cell types susceptible to HIV-1 infection.
10:38
High Yield Purification of Plasmodium falciparum Merozoites For Use in Opsonizing Antibody Assays
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Cited by 18 •
2014
Measuring antibody function is key to understanding immunity to Plasmodium falciparum malaria. This method describes the purification of viable merozoites, and measurement of opsonization-dependent phagocytosis by flow cytometry.
08:20
In Vitro Assay of Plasmodium-Infected Red Blood Cell Killing by Cytotoxic Lymphocytes
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2022
Here we describe a new method to help elucidate the mechanisms of cellular immunity to Plasmodium during the blood stage of infection. This is an in vitro assay that measures infected red blood cell killing by cytotoxic...
09:03
HeLa Based Cell Free Expression Systems for Expression of Plasmodium Rhoptry Proteins
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Cited by 16 •
2015
Expression of malarial proteins in cell based systems remains challenging. We demonstrate two step and one step IVT (in vitro translation) cell free expression systems for expressing malarial recombinant rhoptry proteins from HeLa cells. We use a Ni-resin affinity based purification system to purify the rhoptry proteins.
10:09
Selection of Plasmodium falciparum Parasites for Cytoadhesion to Human Brain Endothelial Cells
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Cited by 23 •
2012
An in vitro model for cerebral malaria sequestration is described1. Plasmodium falciparum infected red blood cells are selected for binding to immortalized human brain microvascular endothelial cells. The selected parasites show a distinct phenotype. The selection process can be applied using various P. falciparum strains and endothelial cell lines.
FAQs
Red blood cells provide the culture setting in which parasite growth and invasion can be examined under defined conditions. Because the assay separates these parasite behaviors into measurable outcomes, investigators can compare how experimental conditions affect expansion, entry into cells, or survival. This makes the system useful for connecting observed changes to specific aspects of infection biology.
Defined conditions reduce experimental complexity and make comparisons more controlled. Investigators can examine how a selected condition changes parasite growth, invasion, or survival without the full variability of an infection in a host. This supports clearer interpretation of experimental differences and helps identify effects that may be relevant to parasite biology or intervention development.
The assay can combine parasite measurements with observations of immune-cell responses. This allows researchers to study how immune mechanisms respond to infection-related conditions and how parasites may evade host defenses. Linking parasite behavior with immune-cell responses provides an immunology-focused view of infection rather than examining parasite growth alone.
Researchers can assess whether an antimalarial compound changes measurable parasite outcomes under controlled conditions. Growth, invasion, or survival can serve as readouts for comparing treated and untreated experimental conditions. These comparisons help evaluate compound activity and provide evidence for selecting or developing interventions directed at malaria parasites.
A typical workflow begins by maintaining Plasmodium parasites in cultured red blood cells. The parasites are then examined under defined experimental conditions, which may include testing a compound or investigating an immune-related condition. Researchers measure outcomes such as parasite growth, invasion, survival, or immune-cell responses to compare the effects of those conditions.
The main readouts include parasite growth, invasion, and survival, along with responses from immune cells when the experiment addresses host–pathogen interactions. These outcomes answer different questions: growth reflects parasite expansion, invasion reflects entry into red blood cells, survival reflects persistence, and immune-cell responses indicate changes in host defense mechanisms.
They are useful when researchers need controlled comparisons for studying parasite biology, evaluating antimalarial compounds, or characterizing immune mechanisms. The resulting observations can also inform investigations of parasite immune evasion and support the design of vaccines or other malaria interventions. Their controlled format connects basic infection research with therapeutic and preventive development.