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  • Title: [Action of avermectins on lymphoid leukemia P-388 cells in vitro].
    Author: Mosin VA, Krugliak EB, Sterlina TS, Korystov IuN, Shaposhnikova VV, Kublik LN, Levitman MKh, Viktorov AV, Driniaev VA.
    Journal: Antibiot Khimioter; 1999; 44(6):16-20. PubMed ID: 10422573.
    Abstract:
    Avermectins are final products in the fermentation process with Streptomyces avermitilis. They have parasitocidic activity and are used as the main substances of insectoacaronematocides. The study of the activity of the natural avermectin complex (aversectin C) and separate avermectins A1, A2, B1 and B2 in the cell culture of lymphoid leukemia P-388 showed that within the concentrations of 0.1 to 1.0 microgram/ml aversectin C inhibited the growth of the tumor cells and induced their death. The inhibition was due to blocking the cell mitosis. The cell death was accompanied by internucleosomal degradation of the DNA nuclei i.e. the death was of the apoptosis type. The sensitivity of the cells to aversectin C was directly proportional to their initial proliferative activity. As for the separate avermectins only avermectin A1 had the cytotoxic activity within the concentrations used, avermectin A2 had the cytostatic activity and avermectins B1 showed no activity under the experimental conditions.
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