A novel role for renal epithelial cells and the medullary sodium gradient in the local immune response.

Kidney Int

Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA; Division of Nephrology, Department of Medicine, Duke University and Durham VA Medical Centers, Durham, North Carolina, USA. Electronic address:

Published: December 2017

The extreme hypertonicity of the renal medulla plays a central role in regulating volume status. A recent publication in Cell has identified a novel role for the high sodium environment and the local epithelial cells in the recruitment of mononuclear phagocytes, potentially contributing to the defense against ascending urinary tract infection.

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http://dx.doi.org/10.1016/j.kint.2017.10.005DOI Listing

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