Kidney Precursor Cells (image) Salk Institute Share Print E-Mail Caption Salk scientists created a new method to develop endless supply of kidney precursor cells. Pictured are long-term cultured nephron progenitor cells (red) incorporating and becoming part of the kidney after transplanted into a developing kidney. Credit Salk Institute Usage Restrictions with credit and related coverage Share Print E-Mail 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.