Summary
Giant cell formation was induced within 12 days in 9 species of human cell strains by exposure to 2000 r and 4000 r of gamma radiation from a Cobalt60 source. In contrast, cells from primary explants derived from 6 different sources and in vitro for less than one month did not exhibit this response.
Cells in the strain cultures have all been shown to be heteroploid, having an average chromosome number ranging from approximately 67 to 83. This factor may serve to explain why they are prone to develop giant cells.
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This research was supported by the USAF under Contract No. AF 18 (600)-1263, monitored by the School of Aviation Medicine, USAF, Randolph Air Force Base, Texas.
Captain, USAF (MSC).
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Pomerat, C.M., Kent, S.P. & Logie, L.C. Irradiation of cells in tissue culture. Zeitschrift für Zellforschung 47, 158–174 (1957). https://doi.org/10.1007/BF00340146
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DOI: https://doi.org/10.1007/BF00340146