Related Experiment Video
Updated: Jan 29, 2026
07:17
Single-Cell Calcium Imaging for Studying the Activation of Calcium Ion Channels
Published on: December 13, 2024
1.8K
Monocellular and Multicellular Parasites Infesting Humans: A Review of Calcium Ion Mechanisms
John A D'Elia1, Larry A Weinrauch1
1E P Joslin Research Laboratory, Beth Israel Deaconess Kidney and Hypertension Section at Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Boston, MA 02215, USA.
Biomedicines
|January 28, 2026
Summary
Calcium signaling is crucial for host defense and parasitic infections. Calcium channel blockers and calcineurin inhibitors show promise in enhancing antiparasitic therapies and protecting against parasitic diseases.
Area of Science:
- Cellular Biology
- Immunology
- Parasitology
Background:
- Calcium ions (Ca2+) act as critical signal messengers in host defense and microbial/parasitic cells.
- Erythrocyte membrane changes, influenced by Ca2+, affect deformability and parasite resistance.
- Sickle cell disease and thalassemia major patients lack natural protection against parasitic infestation.
Purpose of the Study:
- To investigate the role of calcium signaling in host defense against parasitic infections.
- To evaluate the potential of calcium channel blockers and calcineurin inhibitors in antiparasitic therapy.
- To explore how manipulating calcium pathways can enhance host resistance and reduce parasite survival.
Main Methods:
- Analysis of calcium ion (Ca2+) signaling pathways in host defense cells and erythrocytes.
- Investigating the effects of calcium channel blockers and calcineurin inhibitors (e.g., cyclosporine) on parasitic growth.
- Examining the impact of calcium manipulation on erythrocyte deformability and parasite invasion.
- Studying calcium storage mechanisms in liver cells following drug exposure.
Main Results:
- Calcium channel blockers interfere with malarial parasite life cycles.
- Calcineurin inhibitors (cyclosporine) reduce inflammation and parasite growth (Plasmodium, Schistosoma).
- Inhibitors of calmodulin also blunt Plasmodium growth.
- Cyclosporine exposure leads to increased hepatic Ca2+ storage, potentially aiding defense against intracellular pathogens.
Conclusions:
- Calcium channel blockers and calcineurin inhibitors can potentiate existing antiparasitic treatments.
- Targeting calcium signaling pathways offers a promising strategy to combat parasitic infections and enhance host defense.
- Understanding calcium's role is vital for developing new therapies against diseases caused by Plasmodium, Schistosoma, and other parasites.
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