{Reference Type}: Journal Article {Title}: A minor review of microRNA-338 exploring the insights of its function in tumorigenesis. {Author}: Yi Q;Cui H;Liao Y;Xiong J;Ye X;Sun W; {Journal}: Biomed Pharmacother {Volume}: 139 {Issue}: 0 {Year}: Jul 2021 {Factor}: 7.419 {DOI}: 10.1016/j.biopha.2021.111720 {Abstract}: MicroRNAs(miRNAs) are small non-coding RNAs which have a critical role in various biological processes via direct binding and post-transcriptionally regulating targeted genes expression. More than one-half of human genes were regulated by miRNAs and their aberrant expression was detected in various human diseases, including cancers. miRNA-338 is a new identified miRNA and increasing evidence show that miRNA-338 participates in the progression of lots of cancers, such as lung cancer, hepatocellular cancer, breast cancer, glioma, and so on. Although a range of targets and signaling pathways such as MACC1 and Wnt/β-catenin signaling pathway were illustrated to be regulated by miRNA-338, which functions in tumor progression are still ambiguous and the underlying molecular mechanisms are also unclear. Herein, we reviewed the latest studies in miRNA-338 and summarized its roles in different type of human tumors, which might provide us new idea for further investigations and potential targeted therapy.