ESR1 and endometrial cancer: The objectives of the study were (1) to determine the prevalence of AR, ER, and PR expression in endometrial cancer, ovarian cancer, and cervical cancer; (2) to clarify the relation to a cell proliferation indicator; and (3) to give an overview of the current understanding of the role of miRNAs in malignancies as well as to pinpoint specific miRNAs that are potential targets for hormone treatment.