Toward a More Tailored Treatment for Triple-Negative Breast Cancer (image) University of Pennsylvania Share Print E-Mail Caption Researchers from the University of Pennsylvania found that that the protein Elf5 in mammary tumors plays a role in the progression and spread of triple-negative breast cancer in an animal model. Cells with Elf5 are noted in green above. Credit Snahlata Singh and Rumela Chakrabarti Usage Restrictions In context of reporting Share Print E-Mail 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.