Prostate tumor engines (IMAGE) Michigan Medicine - University of Michigan Caption In three of the 21 cases Joshi Alumkal and his team studied, the gene expression of the prostate tumors changed after receiving enzalutamide and no longer had the androgen receptor (shown in red) as an engine. Credit Courtesy of Joshi Alumkal Usage Restrictions None 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.