Université de Fribourg

Hemozoin-catalyzed precipitation polymerization as an assay for malaria diagnosis

Rifaie-Graham, Omar ; Pollard, Jonas ; Raccio, Samuel ; Balog, Sandor ; Rusch, Sebastian ; Hernández-Castañeda, María Andrea ; Mantel, Pierre-Yves ; Beck, Hans-Peter ; Bruns, Nico

In: Nature Communications, 2019, vol. 10, no. 1, p. 1369

Methods to diagnose malaria are of paramount interest to eradicate the disease. Current methods have severe limitations, as they are either costly or not sensitive enough to detect low levels of parasitemia. Here we report an ultrasensitive, yet low- resource chemical assay for the detection and quantification of hemozoin, a biomarker of all Plasmodium species. Solubilized hemozoin catalyzes...

Université de Fribourg

Malaria infected red blood cells release small regulatory RNAs through extracellular vesicles

Babatunde, Kehinde Adebayo ; Mbagwu, Smart Ikechukwu ; Hernández-Castañeda, María Andrea ; Adapa, Swamy R. ; Walch, Michael ; Filgueira, Luis ; Falquet, Laurent ; Jiang, Rays H. Y. ; Ghiran, Ionita ; Mantel, Pierre-Yves

In: Scientific Reports, 2018, vol. 8, no. 1, p. 884

The parasite Plasmodium falciparum causes the most severe form of malaria. Cell communication between parasites is an important mechanism to control population density and differentiation. The infected red blood cells (iRBCs) release small extracellular vesicles (EVs) that transfer cargoes between cells. The EVs synchronize the differentiation of the asexual parasites into gametocytes to initiate...