RRC ID 44746
著者 Kurashina R, Kikuchi K, Iwaki J, Yoshitake H, Takeshita T, Takizawa T.
タイトル Placenta-specific miRNA (miR-512-3p) targets PPP3R1 encoding the calcineurin B regulatory subunit in BeWo cells.
ジャーナル J Obstet Gynaecol Res
Abstract AIM:The microRNAs (miRNAs) derived from the chromosome 19 miRNA cluster (C19MC) are exclusively expressed in the human placenta, but the origin and functions of C19MC miRNAs are not fully understood. The purpose of this study was to elucidate which cells express C19MC miRNAs in chorionic villi and identify their miRNA targets.
METHODS:A combination of laser microdissection (LMD) and real-time polymerase chain reaction (PCR) to examine the localization of five C19MC miRNAs (i.e. miR-512-3p, miR-518b, miR-520a, miR-524 and miR-1323) in the human placenta was performed. Furthermore, to identify miR-512-3p-target genes, we analyzed gene expression profiles of the trophoblast cell line BeWo using a DNA microarray. Predicted target genes were validated by real-time PCR, western blotting, and 3'-untranslated region reporter assay.
RESULTS:By LMD and subsequent PCR analysis, five C19MC miRNAs examined in this study were predominantly expressed in villous trophoblast cells; little expression, if any, was observed in villous stroma cells or fetal endothelial cells. Microarray data showed that 334 genes were downregulated in BeWo cells treated with Pre-miR-512-3p (mature miR-512-3p mimic). We found six candidate target genes of miR-512-3p using DNA microarray data and target prediction software. Furthermore, we revealed that protein phosphatase 3, regulatory subunit B, alpha (PPP3R1), one of the six genes, was a miR-512-3p target using an in vitro experimental validation system.
CONCLUSION:These data suggest that miR-512-3p participates in human trophoblast function[s] by targeting PPP3R1, encoding a regulatory subunit of calcineurin.
巻・号 40(3)
ページ 650-60
公開日 2014-3-1
DOI 10.1111/jog.12217
PMID 24246042
MeSH Adult Calcineurin / chemistry Calcineurin / genetics Calcineurin / metabolism* Cell Line Down-Regulation* Female Humans Laser Capture Microdissection MicroRNAs / metabolism* Organ Specificity Placenta / cytology Placenta / metabolism* Pregnancy Recombinant Proteins / chemistry Recombinant Proteins / metabolism Trophoblasts / cytology Trophoblasts / metabolism
IF 1.392
引用数 10
WOS 分野 OBSTETRICS & GYNECOLOGY
リソース情報
ヒト・動物細胞 BeWo