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Abstract A technique has been developed for the selective detachment of mitotic cells from monolayer cultures of Chiness hamster cells with a simple reciprocating shaking machine. Cultures prepared by the shake treatment and placed in spinner flasks are routinely obtained, in which the mitotic fraction drops from 0.95–0.05 in 19 minutes. Some properties of mitotic cells prepared by this technique are described, along with a simple procedure for producing large quantities of mitotic cells. Cells chilled immediately after collection from a series of shake treatments complete mitosis synchronously upon subsequent resuspension in warm medium.
Tobey et al. (1967) studied this question.