Changes in var gene mRNA levels during malaria development
Author Information
Author(s): Madeleine Dahlbäck, Thomas Lavstsen, Ali Salanti, Lars Hviid, David E. Arnot, Thor G. Theander, Morten A. Nielsen
Primary Institution: Centre for Medical Parasitology at Department of International Health, Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital (Rigshospitalet), Copenhagen, Denmark
Hypothesis
How do var gene transcription levels change during the intra-erythrocytic development of Plasmodium falciparum?
Conclusion
The study found that var gene transcription peaks during the ring-stage of the malaria life cycle, indicating that this is the optimal time for analysis.
Supporting Evidence
- var transcripts were detected at all time points of the intra-erythrocytic cycle.
- Transcription peaked in ring-stage parasites.
- VAR2CSA appeared on the surface of infected erythrocytes 16 hours after invasion.
Takeaway
The study shows that malaria parasites change how they express certain genes as they grow, and the best time to check these genes is when they are in their early stage.
Methodology
The study used quantitative real-time PCR to measure var gene transcription levels at different time points during the intra-erythrocytic cycle.
Digital Object Identifier (DOI)
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