Cestode mitochondrial inner membrane

The cestode mitochondrial inner membrane is a specialized lipid bilayer that serves as the primary site for energy transduction in tapeworms (Cestoda). It houses the electron transport chain (ETC) components, including the unique fumarate reductase system, which allows these parasites to survive in the anaerobic or microaerophilic environments of the host's intestine (Tielens & van Hellemond, 1998). This membrane is the pharmacological target for several anthelmintic agents, most notably Niclosamide, which acts by uncoupling oxidative phosphorylation (PubChem CID 4477). By increasing the permeability of the inner membrane to protons, these drugs dissipate the electrochemical gradient required for ATP synthesis via ATP synthase. This energy depletion leads to the death of the parasite and its subsequent expulsion from the host. Because the metabolic pathways in cestode mitochondria differ significantly from those in mammalian hosts—particularly the reliance on anaerobic pathways—this membrane offers a degree of selective toxicity for therapeutic intervention (Kita et al., 2002).

Other names

Tapeworm mitochondrial inner membraneCestoda mitochondrial inner membraneHelminth mitochondrial inner membrane

Uncoupling of oxidative phosphorylation and inhibition of anaerobic electron transport (fumarate reductase system)