Compositions and methods for an immunotherapeutic approach for human breast cancer is provided herein. Any antagonist of thymic stromal lymphopoietin (TSLP) and/or OX40L to inhibit tumor development and IL-13 secretion by blocking the upregulation of OX40L by DCs exposed to breast cancer, thereby blocking their capacity to generate inflammatory IL-13+TNFα+IL-10negCD4+ T cells (Th2 cells). Thus, TSLP, and/or down-stream pathways, represent novel potential therapeutic targets against human breast cancer.