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    Effects of the antimalarial compound cryptolepine and its analogues in human lymphocytes and sperm in the Comet assay

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    Publication date
    2011
    Author
    Gopalan, Rajendran C.
    Emerce, E.
    Wright, Colin W.
    Karahalil, B.
    Karakaya, A.E.
    Anderson, Diana
    Keyword
    Cryptolepine analogues; Plasmodium; Comet assay; Human lymphocytes; Human sperm; DNA damage; Malaria; Antimalarial drugs
    Peer-Reviewed
    yes
    
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    Abstract
    Malaria is a mosquito-borne infectious disease caused by the genus Plasmodium. It causes one million deaths per year in African children under the age of 5 years. There is an increasing development of resistance of malarial parasites to chloroquine and other currently used anti-malarial drugs. Some plant products such as the indoloquinoline alkaloid cryptolepine have been shown to have potent activity against P. falciparum in vitro. On account of its toxicity, cryptolepine is not suitable for use as an antimalarial drug but a number of analogues of cryptolepine have been synthesised in an attempt to find compounds that have reduced cytotoxicity and these have been investigated in the present study in human sperm and lymphocytes using the Comet assay. The results suggest that cryptolepine and the analogues cause DNA damage in lymphocytes, but appear to have no effect on human sperm at the assessed doses. In the context of antimalarial drug development, the data suggest that all cryptolepine compounds and in particular 2,7-dibromocryptolepine cause DNA damage and therefore may not be suitable for pre clinical development as antimalarial agents.
    URI
    http://hdl.handle.net/10454/7469
    Version
    No full-text available in the repository
    Citation
    Gopalan, R.C., Emerce, E., Wright, C.W., Karahalil, B., Karakaya, A.E. and Anderson, D. (2011) Effects of the antimalarial compound cryptolepine and its analogues in human lymphocytes and sperm in the Comet assay. Toxicology Letters 207(3):322-325.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.toxlet.2011.09.010
    Type
    Article
    Collections
    Life Sciences Publications

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