Liu et al. generated three primary EC cell lines derived from endometrioid adenocarcinoma patients and found that UCA1 enhances their proliferation by sponging miR-143-3p and upregulating Kruppel-like factor 5 (KLF5) and promotes EMT through downregulating miR-1-3p and increasing the relaxin-like family peptide receptor 1 (RXFP1), respectively. Here, UCA1 is linked to endometrioid adenocarcinoma.