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The transcription factor STAT3 is associated with elements of the cytoskeleton in A-431 cells

Evdonin, A.L.; Sokolova, I.P.; Medvedeva, N.D.

Tsitologiia 40(12): 1070-1073

1998

ISSN/ISBN: 0041-3771
PMID: 10188223
Document Number: 490878
The transcription factor STAT3 (signal transducers and activators of transcription) takes part in cell signaling. Here we show that STAT3 is associated with the cytoskeleton in A-431 cells. The protein is determined in cytoskeletal (detergent insoluble) fraction of control cells and of cells after RGF treatment. STAT3 is diffusely distributed in the cytoplasm of control cells to be seen relocalized to the nuclei after EGF treatment. Besides, the protein is observed in cell membrane protrusions. Using double immunofluorescence, co-localization of action and STAT3 was shown in these structures.

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