Trypanosome Brucei
Trypanosome Brucei - Related Videos
11:26
High-throughput Gene Tagging in Trypanosoma brucei
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Cited by 21 •
2016
Addition of a tag to a protein is a powerful way of gaining insight into its function. Here, we describe a protocol to endogenously tag hundreds of Trypanosoma brucei proteins in parallel such that genome scale tagging is achievable.
09:45
Detection of Trypanosoma brucei Variant Surface Glycoprotein Switching by Magnetic Activated Cell Sorting and Flow Cytometry
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Cited by 3 •
2016
African trypanosomes grown in vitro undergo antigenic variation at a low rate, such that populations are made up of parasites expressing a dominant variant surface glycoprotein (VSG) type and a small population of "switched" variants. This protocol describes a fast method for detecting and quantifying these populations.
08:50
Measuring Dynamic Glycosomal pH Changes in Living Trypanosoma brucei
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Cited by 1 •
2024
We describe a method to study how pH responds to environmental cues in the glycosomes of the bloodstream form of African trypanosomes. This approach involves a pH-sensitive heritable protein sensor in combination with flow cytometry to measure pH dynamics, both as a time-course assay and in a high-throughput screen format.
09:19
RNA Catalyst as a Reporter for Screening Drugs against RNA Editing in Trypanosomes
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Cited by 1 •
2014
A highly sensitive ribozyme-based assay, applicable to high-throughput screening of chemicals targeting the unique process of RNA editing in trypanosomatid pathogens, is described in this paper. Inhibitors can be used as tools for hypothesis-driven analysis of the RNA editing process and ultimately as therapeutics.
15:25
Examination of the Telomere G-overhang Structure in Trypanosoma brucei
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Cited by 11 •
2011
Telomeres are essential for chromosome stability and the telomere G-overhang structure is essential for telomerase-mediated telomere maintenance. We have recently adopted two methods for detecting the telomere G-overhang structure in Trypanosoma brucei, which are native in-gel hybridization and ligation-mediated primer extension, which will be described.
FAQs
Periodic replacement of the variant surface glycoprotein coat changes the parasite’s exposed surface over time. Antibodies produced against an earlier coat therefore face a moving target, allowing Trypanosoma brucei to remain in the bloodstream despite an active antibody response. This repeated switching is the central strategy linking surface-antigen change to prolonged infection and immune evasion.
Antibody-mediated immunity depends on recognizing exposed parasite molecules. When the surface glycoprotein coat changes, recognition directed at a prior version becomes less effective against the newly coated parasite. Studying this cycle helps immunologists explain how infection can persist while the host mounts antibody responses, rather than treating persistence as simple failure of immunity.
Trypanosome Brucei provides a model for examining more than antigen escape alone. The host-parasite interaction lets researchers connect changing surface antigens with parasite persistence and inflammatory disease. This combined perspective places immune evasion within the broader consequences of continuing infection, rather than analyzing antibodies or inflammation as isolated phenomena.
Research on the life cycle clarifies how the parasite is maintained and transmitted, while analysis of surface antigens reveals how it interacts with host immunity. Together, these areas provide a biological foundation for investigating persistence, antigenic variation, and disease, while supporting the development of improved diagnostics, drug treatments, and infection-control strategies.
Studies of the parasite’s life cycle and surface antigens provide information directly relevant to diagnostic improvement and drug development. Researchers can use this biological context to examine how infection is maintained, how immune escape occurs, and which features of the host-parasite interaction require intervention. These findings can also inform broader approaches to controlling infection.
The parasite causes sleeping sickness in humans and related disease in animals, making it relevant to both medical and veterinary infection research. Its transmission by tsetse flies and its impact on people and livestock in sub-Saharan Africa add an important public-health and agricultural context to studies of immunity, persistence, diagnosis, and control.