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Bone marrow reticulocytes: a Plasmodium vivax affair?
1BARCELONA INSTITUTE FOR GLOBAL HEALTH; MANHIÇA HEALTH RESEARCH CENTER;
Blood
|February 21, 2015
Summary
Malleret and colleagues demonstrate that the bone marrow is crucial for Plasmodium vivax. The parasite preferentially infects young red blood cells within the bone marrow, accelerating their maturation.
Area of Science:
- Malariology
- Hematology
- Infectious Diseases
Background:
- Plasmodium vivax is a significant cause of malaria globally.
- The life cycle and tissue tropism of P. vivax remain incompletely understood.
- Reticulocytes are known targets for some Plasmodium species.
Purpose of the Study:
- To investigate the role of the bone marrow in Plasmodium vivax infection.
- To determine the specific red blood cell stage targeted by P. vivax.
- To elucidate the impact of P. vivax invasion on reticulocyte maturation.
Main Methods:
- Infection of humanized mouse models with Plasmodium vivax.
- Analysis of infected reticulocyte populations within the bone marrow.
- Flow cytometry and microscopy to assess cell maturation and parasite load.
Main Results:
- Plasmodium vivax preferentially infects young reticulocytes.
- These young reticulocytes are predominantly found within the bone marrow.
- Infection accelerates the maturation of reticulocytes to erythrocytes.
Conclusions:
- The bone marrow is a critical niche for early Plasmodium vivax development.
- Preferential targeting of bone marrow reticulocytes facilitates parasite propagation.
- Understanding this interaction may reveal new therapeutic targets for P. vivax malaria.
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