Effects on DNA and Cell Viability of Treated Water Contaminated With Cylindrospermopsis raciborskii Extract Including Cylindrospermopsin

Authors

  • Ana Lúcia Fonseca Institute of Natural Resources, Federal University of Itajubá, Itajubá, MG, Brazil
  • Anna Lankoff Institute of Biology, Jan Kochanowski University, Kielce, Poland ; Department of Radiobiology and Health Protection, Institute of Nuclear Chemistry and Technology, Warsaw, Poland
  • Sandra M. F. O. Azevedo Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
  • Raquel Moraes Soares Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil

DOI:

https://doi.org/10.5132/eec.2013.01.020

Keywords:

cell viability, cylindrospermopsin, chlorination, DNA damage

Abstract

It is well known that chlorine can oxidize cyanotoxins, thus increasing water potability. Considering that the first steps of conventional treatment do not remove the toxins, the aim of this study was to investigate the toxicity of treated water containing cylindrospermopsin after chlorine addiction. It was analyzed DNA damage and viability of HepG2 cells exposed to the following treatments: cylindrospermopsin (CYN) containing extract of Cylindrospermopsis raciborskii; this same extract added to treated water; non toxic C. raciborskii (all extracts at concentration of 0.1, 0.5 and 1 μg of dry material mL-1), and treated water only. Cells were exposed for 24, 48 and 72 hours. A decrease in cell viability of HepG2 cells was observed after the treatment with toxic C. raciborskii extract (at 0.5 and 1 μg mL-1 for all times of exposure) and the toxic extract with treated water at the two higher concentrations at 48 and 72 hours. Comet assays also revealed DNA damage in HepG2 cells under toxic C. raciborskii extract. Data indicated that chlorine can prevent damage to DNA and to cell viability in most of conditions. In conclusion, chlorine addiction in conventional water treatment has a potential to provide protection or reduce toxic effects of CYN.

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Published

30-11-2013

How to Cite

Fonseca, A. L., Lankoff, A., Azevedo, S. M. F. O., & Soares, R. M. (2013). Effects on DNA and Cell Viability of Treated Water Contaminated With Cylindrospermopsis raciborskii Extract Including Cylindrospermopsin. Ecotoxicology and Environmental Contamination, 8(1), 135–141. https://doi.org/10.5132/eec.2013.01.020

Issue

Vol. 8 No. 1 (2013)

Section

Original Articles

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Copyright (c) 2013 Ecotoxicology and Environmental Contamination

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