Publikationsdatenbank

Interactions of anthelmintic drugs in Caenorhabditis elegans neuro-muscular ion channel mutants (2013)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Miltsch, Sandra M

Krücken, Jürgen (WE 13)

Demeler, Janina (WE 13)

Ramünke, Sabrina (WE 13)

Harder, Achim

von Samson-Himmelstjerna, Georg (WE 13)

Quelle

Parasitology International; 62(6) — S. 591–598

ISSN: 1383-5769

Sprache

Englisch

Verweise

DOI: 10.1016/j.parint.2013.05.006

Pubmed: 23707730

Kontakt

Institut für Parasitologie und Tropenveterinärmedizin

Robert-von-Ostertag-Str. 7-13
Gebäude 35, 22, 23
14163 Berlin
Tel.+49 30 838 62310 Fax.+49 30 838 62323
email:parasitologie@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Due to the increasing development of anthelmintic resistance in nematodes worldwide, it is important to search for anthelmintic compounds with new modes of action and also to investigate the possibility to combine compounds with possible synergistic effects. There might also be the chance to take advantage of the fact that nematode populations which have developed resistance against one anthelmintic class might respond hypersusceptibly to another drug class. The aim of this study was to investigate responses of Caenorhabditis elegans populations with mutations in neuro-muscular ion channels to different anthelmintic classes. Furthermore, potential synergistic effects between two anthelmintic compounds from different classes, i.e. emodepside and tribendimidine, were studied. Although there was neither a synergistic nor an antagonistic effect between emodepside and tribendimidine, other types of interactions could be identified. The C. elegans GABAA-receptor (GABAA-R) unc-49 mutants, showing decreased emodepside susceptibility, were more susceptible to tribendimidine than wild-type C. elegans. In contrast, the reverse phenomenon - hypersusceptibility to emodepside in tribendimidine resistant acetylcholine-receptor (AChR) loss of function mutants - was not observed. Moreover, the slo-1 mutant strain (completely emodepside resistant) also showed hypersusceptibility to piperazine. Interestingly, neither the GABAA-R unc-49 mutants nor the AChR mutants showed decreased susceptibility against piperazine, although there were some studies that indicated an involvement of GABAA-R or AChR in the piperazine mode of action. In conclusion, the present study provides evidence suggesting that interactions between commercially available anthelmintic drugs with different modes of action might be a relatively common phenomenon but this has to be carefully worked out for each anthelmintic and each anthelmintic drug combination. Moreover, results obtained in C. elegans will have to be confirmed using parasitic nematodes in the future.