Triple negative breast cancer cell line (IMAGE) UNC Lineberger Comprehensive Cancer Center Caption A triple negative breast cancer cell line stained for endothelial cells and blood vessel content. Using immunofluorescence, the researchers showed that blood vessels in the cell line are leaky. (Credit: Charles M. Perou, PhD) Credit Charles M. Perou, PhD, UNC Lineberger Comprehensive Cancer Center 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.