Triple Negative Breast Cancer Cells (IMAGE) UT Southwestern Medical Center Caption Triple negative breast cancer cells, shown here, often become resistant to chemotherapy over time. New research suggests drugs that inhibit the genes MCL1 or MYC might prevent this. Credit NCI Usage Restrictions Image may only be used with appropriate credit 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.