ZEB1 and breast cancer: Furthermore, a large set of microRNAs co-regulates expression of both Zeb1 and Zeb2, modulating therefore tumor progression, for example miR-101 in ovarian carcinoma [231], miR-200 [232,233,234,235] in gastric adenocarcinoma, miR-139 in HCC [236], miR-205 [237] and miR-448 in breast cancer [238], and miR-590 in glioblastoma [239].