• Nephrol. Dial. Transplant. · Jan 2016

    Review

    Cell-cycle arrest and acute kidney injury: the light and the dark sides.

    • John A Kellum and Lakhmir S Chawla.
    • Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
    • Nephrol. Dial. Transplant. 2016 Jan 1; 31 (1): 16-22.

    AbstractAcute kidney injury (AKI) is a common consequence of systemic illness or injury and it complicates several forms of major surgery. Two major difficulties have hampered progress in AKI research and clinical management. AKI is difficult to detect early and its pathogenesis is still poorly understood. We recently reported results from multi-center studies where two urinary markers of cell-cycle arrest, tissue inhibitor of metalloproteinases-2 (TIMP-2) and insulin-like growth factor-binding protein 7 (IGFBP7) were validated for development of AKI well ahead of clinical manifestations--azotemia and oliguria. Cell-cycle arrest is known to be involved in the pathogenesis of AKI and this 'dark side' may also involve progression to chronic kidney disease. However, cell-cycle arrest has a 'light side' as well, since this mechanism can protect cells from the disastrous consequences of entering cell division with damaged DNA or insufficient bioenergetic resources during injury or stress. Whether we can use the light side to help prevent AKI remains to be seen, but there is already evidence that cell-cycle arrest biomarkers are indicators of both sides of this complex physiology.© The Author 2015. Published by Oxford University Press on behalf of ERA-EDTA.

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