How does malaria’s blood-stage transcriptome unfold?
Plasmodium falciparum’s 48-hour intraerythrocytic cycle was profiled hourly, revealing tightly staged gene-expression programs after RBC invasion.
Source
The transcriptome of the intraerythrocytic developmental cycle of Plasmodium falciparum
Study at a glance
- Design
- Animal / in-vitro — Hourly IDC transcriptome of P. falciparum across the ~48-hour erythrocytic cycle
- N
- Time-series parasite culture transcriptome — no single sample N
- Population
- Plasmodium falciparum during the intraerythrocytic developmental cycle
- Outcome
- Stage-ordered periodic gene expression across the IDC
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How does malaria’s blood-stage transcriptome unfold?
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What cycle was profiled?
transcriptome of one of these stages, the asexual intraerythrocytic developmental cycle (IDC), at a 1-h timescale resolution.
At what temporal resolution?
intraerythrocytic developmental cycle (IDC), at a 1-h timescale resolution.
What they did
Measured the IDC transcriptome of P. falciparum at 1-hour resolution across the ~48-hour cycle from merozoite invasion through ring/trophozoite/schizont stages.
What they found
Gene expression is highly periodic and stage-ordered across the IDC starting with merozoite invasion and parasitophorous vacuole formation.
The limits
What it doesn't show
Does not itself deliver a drug; focuses on blood-stage expression timing.
Key terms
- IDC
- Intraerythrocytic developmental cycle in RBCs.
- Merozoite
- Invasive blood-stage form that enters erythrocytes.
- Parasitophorous vacuole
- Host-derived vacuole housing the intracellular parasite.
- Plasmodium falciparum
- Major human malaria parasite.
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IDC length
Common questions
Cycle length?
~48 hours.
Resolution?
1-hour sampling.
Starts with?
Merozoite invasion of RBCs.
Why care?
Maps stage-specific expression for the pathogenic blood stage.
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