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DyeCycle Violet efflux, caused by ATP-binding cassette transporters activity, was analyzed in human colorectal adenocarcinoma cell lines SW480, HT-29, Caco-2 by neans of FACSAria III flow cytometer and ImageStreamX Mk II imaging flow cytometer. Along with similarity of cytometry data obtained on the two instruments, the use of imaging flow cytometry made it possible to characterize the morphology of side population cells, as well as morphology of other cell populations differing in the degree of dye accumulation. The population of cells, which are smaller than the side population cells and practically do not take the dye, is of the special interest. Probably, this population may contribute to the tumor resistance to chemotherapy.


A M Gisina, Y S Kim, K N Yarygin, A Yu Lupatov. Identification of the side population associated with ATP-binding cassette transporters activity using imaging flow cytometry]. Biomeditsinskaia khimiia. 2021 Mar;67(2):137-143

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PMID: 33860770

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