In the present study, we showed that, TSLP protein is significantly high expressed in BC tissues compared to matching normal tissues, suggesting possible regulation of TSLP production by Th2 inflammatory cytokines during BC progression (Nguyen, Vanichsarn, & Nadeau, 2010; Semlali et al., 2010; Ying et al., 2008, 2005). Here, TSLP is linked to breast cancer.