alexa DNA damage-induced apoptosis.
Diabetes & Endocrinology

Diabetes & Endocrinology

Journal of Steroids & Hormonal Science

Author(s): Norbury CJ, Zhivotovsky B

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Abstract Unicellular organisms respond to the presence of DNA lesions by activating cell cycle checkpoint and repair mechanisms, while multicellular animals have acquired the further option of eliminating damaged cells by triggering apoptosis. Defects in DNA damage-induced apoptosis contribute to tumorigenesis and to the resistance of cancer cells to a variety of therapeutic agents. The intranuclear mechanisms that signal apoptosis after DNA damage overlap with those that initiate cell cycle arrest and DNA repair, and the early events in these pathways are highly conserved. In addition, multiple independent routes have recently been traced by which nuclear DNA damage can be signalled to the mitochondria, tipping the balance in favour of cell death rather than repair and survival. Here, we review current knowledge of nuclear DNA damage signalling, giving particular attention to interactions between these nuclear events and apoptotic processes in other intracellular compartments. This article was published in Oncogene and referenced in Journal of Steroids & Hormonal Science

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