Tissue Sample (IMAGE) Walter and Eliza Hall Institute Caption A histological image of a tissue sample studied in the research, which found the CART T cells persisted in the preclinical models post treatment, acting as a 'living drug' to fight the tumour if it returns. Credit Credit: WEHI researchers Usage Restrictions Free to share, must credit. 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.