Arthritis-Associated Osteoclast Precursor Cells (IMAGE) Osaka University Caption a, Arthritis-associated osteoclast precursor cells (R3) exist only in the joint tissue and b, have the capacity to form osteoclasts and resorb bone. Credit Osaka University 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.