FAP Cilia (IMAGE) University of California - San Francisco Caption Seen through the microscope, a primary cilium (top; red and green) is seen protruding from a FAP (fibro/adipogenic progenitor) cell (blue). Credit Galo Garcia III 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.