Journal
CHEMOSPHERE
Volume 45, Issue 4-5, Pages 463-470Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0045-6535(00)00582-8
Keywords
pentachlorophenol; copper; synergistic cytotoxicity; chelating agents
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Both pentachlorophenol (PCP) and copper compounds have been widely used as wood preservatives, and are commonly found not only in the area near wood-preserving facilities, but also in body fluids and tissues of people who are not occupationally exposed to them. In this study, we found that exposing bacteria to a combination of PCP and copper at non- or sub-toxic concentrations resulted in enhanced cytotoxic effect in a synergistic mode as indicated by both the inhibition of growth and the lowering of the colony-forming ability. The toxicity of the combination PCP/Cu(II) was relieved by hydrophilic chelating agents, thiol compounds and adventitious proteins, but was markedly potentiated by low levels of the lipophilic metal chelating agents. (C) 2001 Elsevier Science Ltd. All rights reserved.
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