title: miR-27a regulates the growth, colony formation and migration of pancreatic cancer cells by targeting Sprouty2.
abstract: MicroRNAs are short regulatory RNAs. A growing body of data implicates altered miRNA participate in the development of cancers and miR-27a is abnormally upregulated in several types of cancers identified as an oncogene. Although overexpressed in pancreatic adenocarcinoma, the oncogenic role of miR-27a has not yet been reported. In this study, we showed that inhibition of miR-27a suppressed the growth, colony formation and migration of pancreatic cancer cells. By using a reporter-screening assay, we discovered that the 3'UTR of Sprouty2 (Spry2) carried a putative miR-27a binding site. Furthermore, the Spry2 protein, which has a low expression level in pancreatic adenocarcinoma, was upregulated by transfection with a miR-27a inhibitor. The data reported here are the first to indicate that miR-27a plays an oncogenic role by targeting Spry2 and modulating the malignant, biological behavior of pancreatic cancer cells. This suggests the potential for miR-27a to be used as a target in the diagnosis and treatment of pancreatic adenocarcinoma.
authors.affiliation: Department of Pathology, Peking Union Medical College Hospital, People's Republic of China.
authors.forename: Yihui
authors.initials: Y
authors.lastname: Ma
authors.forename: Shuangni
authors.initials: S
authors.lastname: Yu
authors.forename: Wugan
authors.initials: W
authors.lastname: Zhao
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Lu
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
mesh_terms: D020413:3' Untranslated Regions / Q000235:genetics; D000230:Adenocarcinoma / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D001665:Binding Sites / Q000235:genetics; D015153:Blotting, Western; D002460:Cell Line; D045744:Cell Line, Tumor; D002465:Cell Movement; D049109:Cell Proliferation; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics* / Q000378:metabolism; D008156:Luciferases / Q000235:genetics / Q000378:metabolism; D008565:Membrane Proteins; D035683:MicroRNAs / Q000235:genetics* / Q000378:metabolism; D020411:Oligonucleotide Array Sequence Analysis; D010190:Pancreatic Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D020133:Reverse Transcriptase Polymerase Chain Reaction; D014410:Tumor Stem Cell Assay
chemical_list: D020413:3' Untranslated Regions; D047908:Intracellular Signaling Peptides and Proteins; C531388:MIRN27 microRNA, human; D008565:Membrane Proteins; D035683:MicroRNAs; C485561:SPRY2 protein, human; D008156:Luciferases