POU5F1 and cancer: Other microRNAs also showed promising results: we observed a correlation between the expression of miR-150, miR-145, miR-335, and miR-27a and mRNAs of OCT4 and NOTCH1 but not with NANOG. Interestingly, there is no evidence in the literature that these miRNAs might regulate or be regulated by OCT4 or NOTCH1, but some of them have been reported to play a role in various cancers.