Cestode neuromuscular targets

Cestode neuromuscular targets encompass a variety of proteins, primarily ion channels and G protein-coupled receptors, that are essential for the motor control and coordination of tapeworms (class Cestoda). These targets are critical for the parasite's ability to maintain its position within the host, move, and feed. The most prominent therapeutic target in this category is the transient receptor potential melastatin channel (TRPMPZQ), which is the molecular target of the gold-standard anthelmintic drug, praziquantel (Park & Marchant, 2020; Sprague et al., 2025). Other significant targets include nicotinic acetylcholine receptors (nAChR), GABA receptors, and serotonin (5-HT) receptors, which mediate excitatory and inhibitory signaling (Geary et al., 1992; Pax & Bennett, 1992). Drugs targeting these proteins typically cause either spastic or flaccid paralysis, leading to the expulsion or death of the parasite. Understanding these targets is essential for developing new anthelmintics to combat diseases like taeniasis, cysticercosis, and echinococcosis, especially as resistance to current treatments emerges. However, the high degree of conservation in some of these pathways between parasites and hosts presents a challenge for achieving selective toxicity, and the death of parasites in sensitive areas like the brain can trigger severe inflammatory responses.

Other names

Tapeworm neuromuscular targetsPlatyhelminth neuromuscular targetsCestode neuromuscular systemCestode neuromuscular receptors

Anthelmintic drugs targeting these molecules primarily act by modulating ion channel activity to disrupt neuromuscular coordination. Praziquantel, the most prominent agent, acts as a potent agonist of the flatworm-specific TRPMPZQ channel, inducing a massive influx of calcium ions that results in immediate spastic paralysis and tegumental damage (Park & Marchant, 2020). Other drugs may act as agonists at nicotinic acetylcholine receptors or as inhibitors of metabolic pathways that indirectly impair muscle function, leading to the parasite's detachment and death.