GC-rich fragments in circulating free DNA accelerate replicative aging in cultured human skin fibroblasts

Ершова, Е.С., Каменева, Л.А., Вейко, Н.Н., Костюк, С.В.
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Abstract

Цель исследования: определить влияние GC-богатого фрагмента рибосомного повтора в среде культивирования на скорость репликативного старения клеток. Установлено, что GC-богатые фрагменты в составе внеклеточной ДНК ускоряют репликативное старение культивируемых фибробластов кожи человека и увеличивают уровень активных форм кислорода в клетках. Purpose of the study: to determine the impact of rDNA fragments in the culture medium on the rate of replicative cell aging. We found that GC-rich fragments in extracellular DNA accelerate the replicative aging of cultured human skin fibroblasts and increase the level of reactive oxygen species in cells.
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循环游离DNA中富含gc的片段加速了培养的人皮肤成纤维细胞的复制衰老
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