Related Experiment Video
Updated: Oct 19, 2025
Author Spotlight: Identifying Compensatory Pathways in Malaria Parasites Containing Hypomorphic Allele of Essential Protein Kinases
Published on: November 22, 2024
The Role of Hsp70s in the Development and Pathogenicity of Plasmodium falciparum
1Department of Biochemistry, University of Venda, Thohoyandou, South Africa. addmore.shonhai@univen.ac.za.
Abstract:
The main agent of human malaria, the protozoa, Plasmodium falciparum is known to infect liver cells, subsequently invading the host erythrocyte, leading to the manifestation of clinical outcomes of the disease. As part of its survival in the human host, P. falciparum employs several heat shock protein (Hsp) families whose primary purpose is to ensure cytoprotection through their molecular chaperone role. The parasite expresses six Hsp70s that localise to various subcellular organelles of the parasite, with one, PfHsp70-x, being exported to the infected human erythrocyte. The role of these Hsp70s in the survival and pathogenicity of malaria has received immense research attention. Several studies have reported on their structure-function features, network partnerships, and elucidation of their potential substrates. Apart from their role in cytoprotection and pathogenicity, Hsp70s are implicated in antimalarial drug resistance. As such, they are deemed potential antimalarial drug candidates, especially suited for co-targeting in combination therapies. In addition, Hsp70 is implicated in host immune modulation. The current report highlights the various structure-function features of these proteins, their roles in the development of malaria, current and prospective efforts being employed towards targeting them in malaria intervention efforts.
Insights
Plasmodium falciparum malaria parasites use heat shock proteins (Hsps) for survival and to cause disease. Targeting these Hsps offers a promising strategy for new malaria interventions and drug therapies.
Area of Science:
- Parasitology
- Molecular Biology
- Drug Discovery
Background:
- Malaria, caused by Plasmodium falciparum, infects liver cells and red blood cells, leading to severe illness.
- Plasmodium falciparum utilizes heat shock proteins (Hsps) as molecular chaperones for cellular protection and survival within the human host.
- The parasite expresses six Hsp70 proteins, with PfHsp70-x localized to infected erythrocytes, playing crucial roles in parasite pathogenesis.
Purpose of the Study:
- To review the structure-function characteristics of Plasmodium falciparum Hsp70s.
- To elucidate the role of Hsp70s in malaria parasite survival, pathogenicity, and drug resistance.
- To explore the potential of targeting Hsp70s in malaria intervention strategies and combination therapies.
Main Methods:
- Literature review of existing research on Plasmodium falciparum Hsp70s.
- Analysis of structure-function relationships and substrate interactions.
- Examination of Hsp70 involvement in antimalarial drug resistance and host immune modulation.
Main Results:
- Plasmodium falciparum Hsp70s are vital for parasite survival, exhibiting diverse subcellular localizations and functions.
- These Hsp70s are implicated in the development of malaria, parasite pathogenesis, and the emergence of drug resistance.
- Hsp70s also play a role in modulating the host immune response during infection.
Conclusions:
- Targeting Plasmodium falciparum Hsp70s presents a viable strategy for developing novel antimalarial drugs and combination therapies.
- Understanding Hsp70s' functions is critical for designing effective interventions against malaria.
- Further research into Hsp70s' structure and interactions can accelerate malaria control efforts.
Related Concept Videos
00:58Symbiosis
01:27Diversity of Protists II
01:27Overview of Protists
01:28Fungal Phylum Microsporidia