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Beyond the Bloodstream: The Impact of Malaria on Red Cell Development
Chhaminder Kaur1, Tamar P Feldman1,2, Elizabeth S Egan1,2,3
11Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA ;
Annual Review of Microbiology
|August 12, 2026
Summary
Malaria parasites hide in bone marrow, infecting red blood cell production sites. This discovery reveals a hidden parasite reservoir impacting red blood cell formation and suggesting new therapeutic targets.
Area of Science:
- Parasitology
- Hematology
- Immunology
Background:
- Malaria is caused by *Plasmodium* parasites infecting red blood cells.
- Parasites are increasingly found in bone marrow, the site of red blood cell production.
- This bone marrow reservoir impacts host erythropoiesis and immune responses.
Purpose of the Study:
- To review evidence of *Plasmodium* parasites in bone marrow.
- To discuss implications for erythropoiesis and host responses.
- To identify future research directions for malaria treatment.
Main Methods:
- Literature review of studies on malaria and bone marrow.
- Analysis of parasite interactions with erythroid precursor cells.
- Examination of host inflammatory responses in the bone marrow niche.
Main Results:
- *Plasmodium* parasites establish a cryptic reservoir in bone marrow.
- Parasite presence directly invades erythroid precursors.
- Parasite-derived factors induce inflammatory bone marrow pathology.
- Ineffective erythropoiesis is a consequence of bone marrow infection.
Conclusions:
- The bone marrow is a critical, underappreciated niche for malaria parasites.
- Understanding bone marrow pathology is key to developing new therapies.
- Further research is needed to target this reservoir and improve malaria treatment.
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