Chemosensitizer (IMAGE) Helmholtz Association Caption Left cell: The cellular defense works. The MXR transporter pumps potentially detrimental chemicals out of the cell. Right cell: The cellular defense is disturbed by chemosensitizers that block the transporter. As a consequence the detrimental compounds cannot be pumped out and accumulate inside the cell. Credit Source: UFZ 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.