Fasciola hepatica juveniles interact with the host fibrinolytic system as a potential early-stage invasion mechanism
2023
Serrat, Judith | Becerro Recio, David | Torres Valle, María | Simón, F. | Valero Aleixandre, María Adela | Bargues Castelló, María Dolores | Mas-Coma, S. | Siles Lucas, María del Mar | González-Miguel, J.
The trematode Fasciola hepatica is the most widespread causative agent of fasciolosis, a parasitic disease that mainly affects humans and ruminants worldwide. During F. hepatica infection, newly excysted juveniles (FhNEJ) emerge in the duodenum of the mammalian host and migrate towards their definitive location, the intra-hepatic biliary ducts. Understanding how F. hepatica traverses the intestinal wall and migrates towards the liver is pivotal for the development of more successful strategies against fasciolosis. The central enzyme of the mammalian fibrinolytic system is plasmin, a serine protease whose functions are exploited by a number of parasite species owing to its broad spectrum of substrates, including components of tissue extracellular matrices. The aim of the present work is to understand whether FhNEJ co-opt the functions of their host fibrinolytic system as a mechanism to facilitate trans-intestinal migration.
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