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Elucidating Host Cell Uptake by Malaria Parasites

Brendan Elsworth1, Caroline D Keroack1, Manoj T Duraisingh1

  • 1Harvard T.H. Chan School of Public Health, Boston, MA, USA.

Trends in Parasitology
|April 21, 2019
PubMed

Insights

Researchers identified VPS45 as crucial for malaria parasite growth. This molecule aids in transporting host cytoplasm to the digestive vacuole, essential for parasite survival and hemoglobin digestion.

Area of Science:

  • Malaria research
  • Cell biology
  • Parasitology

Background:

  • The malaria parasite (Plasmodium) requires host cytoplasm for growth.
  • Proteases are known to be essential for digesting hemoglobin within the parasite.
  • Mechanisms for cytoplasm uptake and trafficking to the digestive vacuole remain incompletely understood.

Purpose of the Study:

  • To identify novel molecules involved in host cytoplasm uptake by the malaria parasite.
  • To elucidate the role of specific proteins in trafficking cytoplasmic components to the parasite's digestive vacuole.

Main Methods:

  • The study by Jonscher et al. (2019) focused on identifying key proteins in the malaria parasite's nutrient acquisition pathway.
  • Investigated the function of the identified molecule, VPS45, in the context of host cell invasion and vacuolar function.

Main Results:

  • VPS45 was identified as a critical molecule for the malaria parasite.
  • VPS45 plays a significant role in the uptake and transport of host cytoplasm to the parasite's digestive vacuole.
  • This process is vital for the parasite's growth and hemoglobin digestion.

Conclusions:

  • VPS45 is a novel and essential factor for malaria parasite survival.
  • Targeting VPS45 could represent a new therapeutic strategy against malaria by disrupting parasite nutrition.
Keywords:
Plasmodiumapicomplexanendocytosishemoglobin digestionhost cell uptakemalaria

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