Chemically induced premature chromosome condensation in short-term cultured human peripheral lymphocytes: applications to biodosimetry |
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Authors: | S Tsuji R Kanda |
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Institution: |
a Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba, Inage-ku, Japan |
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Abstract: | We describe here the chemical induction of premature condensed chromosomes in human peripheral lymphocytes after culture for 6 h. Many have attempted this induction without culture or with short-term culture, because this technique permits prompt cytogenetic biodosimetry of radiation accidents. Lymphocytes were separated from blood, incubated in the presence of phytohemagglutinin, ATP, and p34cdc2/cyclin B kinase, then treated with calyculin A during the last hour. The culture medium was supplemented with a lower concentration of fetal calf serum than conventionally used to minimize its possible interference with the effects of these drugs. We obtained, rarely, a suitable morphology of premature chromosome condensation in short-term cultured lymphocytes for conventional chromosome aberration analysis. |
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Keywords: | biodosimetry calyculin A cyclin B human lymphocytes chromosome condensation |
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