We examined whether MDV-1-miR-M4 and gga-miR-155 shared a common set of target genes by use of a recently developed miRNA target prediction algorithm, MirTarget2 (32, 33). Several of the predicted targets of MDV-1-miR-M4 (see Table S1 in the supplemental material) were common to those already identified as gga-miR-155 targets (http://mirdb.org/cgi-bin/search.cgi).
Using luciferase reporter assays, we showed that mdv1-miR-M4-5P and miR-155 efficiently targeted a common set of 3'untranslated regions (3'UTR) of six cellular genes (GPM6B, RREB1, c-Myb, MAP3K7IP2, PU.1[SPI1] and C/EBP).