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Introduction

In mammals, the placenta is an organ that is required to maintain the development of fetus during pregnancy. Although the proper formation of placenta is in part regulated by the post-translational modifications of proteins, little is known regarding protein arginine methylation during placental development. Here, we characterized developmental expression of protein arginine methyltransferase 1 (PRMT1) in mouse placentas.

Methods

Expression levels of PRMT1 mRNA and protein in placentas were investigated using the real-time quantitative PCR and Western blot, respectively. Next, the localization of PRMT1 was determined by immunohistochemistry and immunofluorescence analyses. In addition, the levels of methylarginines of placental proteins were quantified using liquid chromatography-tandem mass spectrometry (LC-MS/MS).

Results

PRMT1 mRNA and its protein were expressed at highest levels in mid-gestation stages, and their expression showed stepwise decrease in the late gestation. At embryonic (E) day 9, PRMT1 was observed in several different trophoblast cell (TC) subtypes. Furthermore, PRMT1 was mainly expressed in the labyrinth zone of TCs at E13. Finally, total methylarginines of proteins were significantly reduced in late gestation of placentas compared with mid-gestation stages.

Discussion

In this study, we found developmental changes in the placental expression of PRMT1 and in protein arginine methylation status during pregnancy. These findings provide fundamental information regarding placental PRMT1-mediated arginine methylation during the development."xsd:string
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http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Ishida J."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Fukamizu A."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Nakashima M."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Mizukami H."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Kako K."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Takeda S."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Sato A."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Kim J.D."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/author"Itakura A."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/date"2018"xsd:gYear
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/name"Placenta"xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/pages"47-54"xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/title"Gestational changes in PRMT1 expression of murine placentas."xsd:string
http://purl.uniprot.org/citations/29908641http://purl.uniprot.org/core/volume"65"xsd:string
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