Sunday, January 18, 2026

Adenylyl Cyclase α and cAMP Signaling Mediate Plasmodium Sporozoite Apical Regulated Exocytosis and Hepatocyte Infection

Authors: Takeshi Ono, Laura Cabrita-Santos, Ricardo Leitao, Esther Bettiol, Lisa A. Purcell, Olga Diaz-Pulido, Lucy B. Andrews, Takushi Tadakuma, Purnima Bhanot, Maria M. Mota, Ana Rodriguez

DOI: 10.1371/journal.ppat.1000008

Abstract Summary

Malaria parasites must migrate through liver cells before establishing infection. Researchers found that this migration triggers a cAMP-dependent exocytosis process controlled by adenylyl cyclase α (ACα). Parasites lacking ACα showed 50% reduced liver infectivity, which was restored when the gene was reintroduced—demonstrating ACα is essential for malaria’s initial infection stage.

Why Brain? 🧠

Researchers identified a key enzyme (adenylyl cyclase α) essential for malaria parasites to infect liver cells. Blocking this enzyme reduced infection by 50%, revealing a potential new drug target to prevent malaria.

License: CC BY.


The image is AI-generated for illustrative purposes only. Courtesy of Midjourney.

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