Do human lymphocytes exposed to the fallout of the Chernobyl accident exhibit an adaptive response? III. Challenge with bleomycin in lymphocytes from children hit by the initial acute dose of ionizing radiation

Bruna Tedeschi, Daniela Caporossi, Patrizia Vernole, Laura Padovani, Francesco Mauro

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Abstract

In the present paper, we report data on the possible adaptive response, induced in vivo by exposure to ionizing radiation to a challenge treatment with the radiomimetic glycopeptide bleomycin (BLM). Lymphocytes from children living in Pripjat at the time of the Chernobyl accident, and thus hit by the initial acute dose of ionizing radiation, were treated for the last 5 h of culture with 0.004 U/ml BLM. Significantly lower chromosome damage was found only in lymphocytes from children who, independently of the initial acute exposure to ionizing radiation, still showed a137Cs internal contamination, due to persistent continuous exposure to low doses of radiation. The present results indicate that past exposure to acute high dose of ionizing radiation does not interfere with resistance to BLM which is related to internal contamination.
Original languageEnglish
Pages (from-to)77 - 80
Number of pages4
JournalMutation Research - Fundamental and Molecular Mechanisms of Mutagenesis
Volume354
Issue number1
DOIs
Publication statusPublished - 5 Jul 1996
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Genetics
  • Health, Toxicology and Mutagenesis

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