KLK11 and cancer: Although the majority of experimental [29,30,31,32] and human studies [33,34,35,36,37,38,39,40,41,42,43,44,45,46] have demonstrated a protumorigenic role for TSLP, few groups have reported a tumor-suppressing role for TLSP in experimental [47,48,49,50,51] and human cancer [48].