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Analysis of gene function in Trypanosoma brucei using RNA interference.
Appolinaire Djikeng1, Shuiyuan Shen, Christian Tschudi
1Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
Methods in Molecular Biology (Clifton, N.J.)
|April 23, 2004
Summary
RNA interference (RNAi) is a key method for studying gene function in Trypanosoma brucei. This chapter details RNAi techniques for gene expression ablation in these protozoa.
Area of Science:
- Molecular Biology
- Parasitology
- Genetics
Background:
- Trypanosoma brucei is a model organism for studying unicellular pathogens.
- RNA interference (RNAi) is the primary method for investigating gene function in T. brucei.
- Gene silencing in T. brucei relies on in vivo-generated double-stranded RNA (dsRNA).
Purpose of the Study:
- To describe established methods for gene expression ablation using RNAi in T. brucei.
- To provide detailed protocols for key steps in the RNAi process.
- To facilitate further research into T. brucei biology and pathogenesis.
Main Methods:
- Utilizing tetracycline (tet)-inducible promoters for dsRNA expression.
- Employing T7 RNA polymerase for in vivo transcription of dsRNA.
- Describing techniques for transfection and cloning of procyclic T. brucei cells.
- Outlining procedures for dsRNA induction, RNA isolation, and mRNA analysis.
Main Results:
- Established protocols enable effective gene silencing in T. brucei via RNAi.
- The described methods allow for targeted ablation of specific gene expression.
- Analysis of dsRNA and target mRNA confirms successful gene function studies.
Conclusions:
- RNAi is a powerful and adaptable tool for functional genomics in T. brucei.
- The presented methods are crucial for dissecting essential biological processes in this protozoan parasite.
- Further application of these RNAi techniques will advance understanding of T. brucei.