NewslettersMammary Cell NewsBRCA1 Insufficiency Induces a Hypersialylated Acidic Tumor Microenvironment That Promotes Metastasis and Immunotherapy ResistanceBy Noshin Noorjahan - May 25, 2023094Investigators identified a mechanism mediated by sialyltransferases that induced an acidic tumor permissive microenvironment in BRCA1-mutant and most BRCA1-low breast cancers.[Cancer Research]Abstract