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Differing Functions Of Atr Kinase In Human Epidermal Keratinocytes Exposed To Ultraviolet B Radiation, Kavya Shaj

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Ataxia-telangiectasia and Rad-3 related (ATR) is a DNA damage response protein kinase that is upregulated in various cancer cell types and has key roles in cell cycle progression, DNA repair and apoptosis. Small molecule ATR kinase inhibitors are of importance as antineoplastic agents because they sensitize cancer cells to DNA damaging chemotherapy drugs. However, only a few studies have looked at the effects of ATR kinase inhibitors on non-replicating cells, which constitute the majority of cells in the human body and have suggested an opposite, pro-apoptotic role for ATR kinase signaling in non-replicating cells in comparison to a pro-survival function …