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. 1977 Jan;74(1):248–252. doi: 10.1073/pnas.74.1.248

Transient inhibition of initiation of S-phase associated with dimethyl sulfoxide induction of murine erythroleukemia cells to erythroid differentiation.

M Terada, J Fried, U Nudel, R A Rifkind, P A Marks
PMCID: PMC393236  PMID: 64982

Abstract

The murine erythroleukemia cell (MELC) line in suspension culture can be induced to differentiate to erythroid cells by various compounds, including dimethyl sulfoxide (Me2SO). Analysis of the cell cycle, during differentiation induced by Me2SO, using thymidine incorporation, thymidine labeling index, and relative DNA content per cell as measured by flow microfluorometry, demonstrates a transient inhibition of entry of cells into S-phase of the cell cycle which is detected as early as 5 hr and is maximal about 20 hr after beginning of nonsynchronous cultures. Furthermore, in the presence of Me2SO there is restricted binding of the intercalating dye propidium iodide to chromatin from MELC in G1 phase of the cell cycle, as early as 10 hr of culture. This restricted binding of propidium iodide to chromatin is observed in MELC cultured with other inducing agents, such as butyric acid and dimethyl-acetamide, but is not detected with an Me2SO-resistant cell line cultured with Me2SO.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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