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Plasmodium vivax infection compromises reticulocyte stability

Author

Listed:
  • Martha A. Clark

    (Harvard T. H. Chan School of Public Health)

  • Usheer Kanjee

    (Harvard T. H. Chan School of Public Health)

  • Gabriel W. Rangel

    (Pennsylvania State University)

  • Laura Chery

    (University of Washington)

  • Anjali Mascarenhas

    (Goa Medical College)

  • Edwin Gomes

    (Goa Medical College)

  • Pradipsinh K. Rathod

    (University of Washington)

  • Carlo Brugnara

    (Boston Children’s Hospital)

  • Marcelo U. Ferreira

    (University of São Paulo)

  • Manoj T. Duraisingh

    (Harvard T. H. Chan School of Public Health)

Abstract

The structural integrity of the host red blood cell (RBC) is crucial for propagation of Plasmodium spp. during the disease-causing blood stage of malaria infection. To assess the stability of Plasmodium vivax-infected reticulocytes, we developed a flow cytometry-based assay to measure osmotic stability within characteristically heterogeneous reticulocyte and P. vivax-infected samples. We find that erythroid osmotic stability decreases during erythropoiesis and reticulocyte maturation. Of enucleated RBCs, young reticulocytes which are preferentially infected by P. vivax, are the most osmotically stable. P. vivax infection however decreases reticulocyte stability to levels close to those of RBC disorders that cause hemolytic anemia, and to a significantly greater degree than P. falciparum destabilizes normocytes. Finally, we find that P. vivax new permeability pathways contribute to the decreased osmotic stability of infected-reticulocytes. These results reveal a vulnerability of P. vivax-infected reticulocytes that could be manipulated to allow in vitro culture and develop novel therapeutics.

Suggested Citation

  • Martha A. Clark & Usheer Kanjee & Gabriel W. Rangel & Laura Chery & Anjali Mascarenhas & Edwin Gomes & Pradipsinh K. Rathod & Carlo Brugnara & Marcelo U. Ferreira & Manoj T. Duraisingh, 2021. "Plasmodium vivax infection compromises reticulocyte stability," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21886-x
    DOI: 10.1038/s41467-021-21886-x
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