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Université de Fribourg

Bax function in the absence of mitochondria in the primitive protozoan Giardia lamblia

Hehl, Adrian B. ; Regos, Attila ; Schraner, Elisabeth ; Schneider, André

In: PLoS ONE, 2007, vol. 2, no. 5, p. e488

Bax-induced permeabilization of the mitochondrial outer membrane and release of cytochrome c are key events in apoptosis. Although Bax can compromise mitochondria in primitive unicellular organisms that lack a classical apoptotic machinery, it is still unclear if Bax alone is sufficient for this, or whether additional mitochondrial components are required. The protozoan parasite Giardia lamblia...

Université de Fribourg

Ablation of the single dynamin of T. brucei blocks mitochondrial fission and endocytosis and leads to a precise cytokinesis arrest

Chanez, Anne-Laure ; Hehl, Adrian B. ; Engstler, Markus ; Schneider, André

In: Journal of Cell Science, 2006, vol. 119, p. 2968-2974

Mitochondrial fission is mediated by dynamin-like proteins (DLPs). Trypanosoma brucei contains a single DLP, which is the only member of the dynamin superfamily. We have previously shown that expression of the human proapoptotic Bax in T. brucei induces extensive mitochondrial fragmentation. Here we report that Baxinduced mitochondrial fission is abolished in cell lines lacking...