Congopain from Trypanosoma congolense : drug target and vaccine candidate

Lalmanach Gilles, Boulangé Alain, Serveau Carole, Lecaille Fabien, Scharfstein Julio, Gauthier Francis, Authié Edith. 2002. Congopain from Trypanosoma congolense : drug target and vaccine candidate. Biological Chemistry, 383 : 739-749.

Résumé : Trypanosomes are the etiological agents of human sleeping sickness and livestock trypanosomosis (nagana), which are major diseases in Africa. Their cysteine proteases (CPs), which are members of the papain family, are expressed during the infective stages of the parasites' life cycle. They are suspected to act as pathogenic factors in the mammalian host, where they also trigger prominent immune responses. Trypanosoma congolense, a major pathogenic species in livestock, possesses at least two families of closely related CPs, named CPi and CP2. Congopain, a CP2-type of enzyme, shares structural and functional resemblances with cruzipain from T. cruzi and with mammalian cathepsin L. Like CPs from other Trypanosomatids, congopain might be an attractive target for trypanocidal drugs. Here we summarise the current knowledge in the two main areas of research on congopain: first, the biochemical properties of congopain were characterised and its substrate specificity was determined, as a first step towards drug design; second, the possibility was being explored that inhibition of congopain by host-specific antibodies may mitigate the pathology associated with trypanosome infection.

Classification Agris : L73 - Maladies des animaux
L72 - Organismes nuisibles des animaux

Auteurs et affiliations

• Lalmanach Gilles, Université François Rabelais (FRA)
• Boulangé Alain, CIRAD-EMVT-SANTE ANIMALE (KEN) ORCID: 0000-0002-8505-7465
• Serveau Carole, Université François Rabelais (FRA)
• Lecaille Fabien, Université François Rabelais (FRA)
• Scharfstein Julio, Instituto de Biofisica Carlos Chagas Filho (BRA)
• Gauthier Francis, Université François Rabelais (FRA)
• Authié Edith, CIRAD-EMVT-SANTE ANIMALE (KEN)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/542066/)

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