Developing Nephron (IMAGE) Keck School of Medicine of USC Caption Machine learning of complex protein patterns predicts precursor cell populations in the developing nephron. The nephron is the filtering unit of the kidney. Credit Image by Nils Lindström/McMahon Lab/USC Stem Cell Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.