Phenotypic reversion of SV40-transformed 3T3 cells by dimethylsulfoxide

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Abstract
With dimethylsulfoxide (DMSO) (0.5 to 1.5%) in the medium, SV40-transformed 3T3 cells (SV3T3) changed morphologically from a round to a flat fibroblastic shape. The saturation density of the treated SV3T3 cells decreased and the generation time increased. These cells showed an increased anchorage dependency in soft agar. Hexose uptake by SV3T3 cells was reduced to the level in the parent 3T3 cells and susceptibility of the SV3T3 cells to concanavalin A (con A) also decreased. These phenotypes of transformed cells appeared to change concomitantly from the transformed toward the normal state with the increase of DMSO concentration.

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