Invasion and delivery (IMAGE) University of Massachusetts Amherst Caption Aspirin triggers BacID (turquoise) to express flagella (turquoise lines), invade into cancer cells (dotted outline) and deliver the therapy intracellularly (green). Credit UMass Amherst 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.