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- W4379600673 abstract "ABSTRACT We report data consistent with tetracycline-mediated fluorescence having the potential to be an effective marker of senescence in immortalised cells. HeLa cells that had previously undergone more than 20 passages were transiently transfected with a plasmid encoding a novel tetracycline-inducible transgene featuring an open reading frame for green fluorescent protein. While characterising the performance of this plasmid and transfection procedure, HeLa cell fluorescence was observed to result from incubating cells with media containing 2 μg/ml tetracycline alone, without plasmid or transfection reagent. To investigate this phenomenon further, HeLa and HEK293T cells were purchased from a tissue culture collection and after cultivation over 4-23 passages, incubated with media containing 2 μg/ml tetracycline. For both cell lines, tetracycline-mediated fluorescence increase correlated with passage number increase. This effect in HeLa and HEK293T cells was also borne out by expression of β-galactosidase activity, an imperfect but widely used marker of cellular senescence. These data suggest tetracycline may have utility as a marker of cellular senescence in immortal cells and can inform future investigation and validation of this previously unreported application for this reagent." @default.
- W4379600673 created "2023-06-08" @default.
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- W4379600673 date "2023-06-28" @default.
- W4379600673 modified "2023-10-14" @default.
- W4379600673 title "Tetracycline-mediated fluorescence correlates with passage number and β-galactosidase activity in HeLa and HEK293T cells" @default.
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- W4379600673 doi "https://doi.org/10.1242/bio.059691" @default.
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- W4379600673 hasPublicationYear "2023" @default.
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