kidney tubule (IMAGE) UT Southwestern Medical Center Caption Microscopic image of kidney tubules (yellow arrows) under an immune attack (green arrows) characteristic of acute interstitial nephritis (AIN). Micrograph taken from a biopsy of a kidney cancer patient treated with immunotherapy who had a good response against the cancer. Credit UT Southwestern Medical Center Usage Restrictions None License Licensed 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.