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CD68 acts as a major gateway for malaria sporozoite liver infection.


ABSTRACT: After being delivered by the bite from an infected mosquito, Plasmodium sporozoites enter the blood circulation and infect the liver. Previous evidence suggests that Kupffer cells, a macrophage-like component of the liver blood vessel lining, are traversed by sporozoites to initiate liver invasion. However, the molecular determinants of sporozoite-Kupffer cell interactions are unknown. Understanding the molecular basis for this specific recognition may lead to novel therapeutic strategies to control malaria. Using a phage display library screen, we identified a peptide, P39, that strongly binds to the Kupffer cell surface and, importantly, inhibits sporozoite Kupffer cell entry. Furthermore, we determined that P39 binds to CD68, a putative receptor for sporozoite invasion of Kupffer cells that acts as a gateway for malaria infection of the liver.

SUBMITTER: Cha SJ 

PROVIDER: S-EPMC4548058 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

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CD68 acts as a major gateway for malaria sporozoite liver infection.

Cha Sung-Jae SJ   Park Kiwon K   Srinivasan Prakash P   Schindler Christian W CW   van Rooijen Nico N   Stins Monique M   Jacobs-Lorena Marcelo M  

The Journal of experimental medicine 20150727 9


After being delivered by the bite from an infected mosquito, Plasmodium sporozoites enter the blood circulation and infect the liver. Previous evidence suggests that Kupffer cells, a macrophage-like component of the liver blood vessel lining, are traversed by sporozoites to initiate liver invasion. However, the molecular determinants of sporozoite-Kupffer cell interactions are unknown. Understanding the molecular basis for this specific recognition may lead to novel therapeutic strategies to con  ...[more]

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