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Factors influencing the assessment of anticoccidial activity in cell culture

Published online by Cambridge University Press:  06 April 2009

Victoria S. Latter
Affiliation:
Wellcome Research Laboratories, Langley Court, Beckenham, Kent BR3 3BS
R. G. Wilson
Affiliation:
Imperial Chemical Industries Ltd, Pharmaceuticals Division, Mereside, Alderley Park, Macclesfield, Cheshire SK10 4TG

Summary

A comparative study has been made of the factors influencing the assessment of anticoccidial potency in vitro against Eimeria tenella using established anticoccidials and arprinocid and some of its analogues. Drugs whose potency depended upon medium composition were amprolium, lasalocid and halofuginone. There was a difference in strain sensitivity with robenidine. Host cell type had an important effect on potency of monensin, decoquinate, arprinocid and its analogues. Arprinocid was active in chick liver cell systems but totally inactive in chick kidney cell systems, although its N-oxide was active in both cell types. Arprinocid-containing medium, conditioned by supporting the growth of chick embryo liver cell cultures, had an anticoccidial effect on E. tenella, growing in chick kidney cells. It is deduced that the anticoccidial activity of arprinocid in the chick is due to a metabolite.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1979

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References

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