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This research aims to investigate how hydroxyurea affects mammalian cells at different stages of the cell cycle.

December 24, 1965Science

Hydroxyurea: Differential Lethal Effects on Cultured Mammalian Cells during the Cell Cycle

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This research aims to investigate how hydroxyurea affects mammalian cells at different stages of the cell cycle.
Cultured Chinese hamster cells were exposed to hydroxyurea at specific cell cycle stages.
Cell survival and progression through phases of the cell cycle (G1, S, G2) were assessed after treatment.
Cells in the DNA synthesis phase (S) were lethally damaged by hydroxyurea.
G1 phase cells survived but were inhibited from initiating DNA synthesis.
G2 phase cells survived and progressed until just before the next DNA synthesis phase.

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Experimental study shows hydroxyurea's selective lethal effects depend on cell cycle stage, indicating potential therapeutic applications.

Warren K. Sinclair (1965) studied this question.

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Experimental study shows hydroxyurea's selective lethal effects depend on cell cycle stage, indicating potential therapeutic applications.