A promising therapy that treats blood cancers by harnessing the power of the immune system to target and destroy cancer cells could now treat solid tumors more efficiently. Thanks to a recent study from Dan Cappabianca and Krishanu Saha at the Department of Biomedical Engineering and the Wisconsin Institute for Discovery published in Molecular Therapy – Methods & Clinical Development, Chimeric Antigen Receptor (CAR) T-cell therapy can be improved by altering the conditions the T cells are grown in. And it was all discovered by chance.