一週間前に発表された論文のアブスト。マウスだ。
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Cell-free “fetal” DNA is released from the placenta. Because the fetal membranes also arise from the trophectoderm layer of the blastocyst, these studies sought to test the hypothesis that the membranes also release cell-free DNA (cfDNA).
First Published December 20, 2018なんてなんて偶然なんだ。面白そうな論文だけど
内容は今は関係ない。the fetal membranes also arise from the trophectoderm layer of the blastocystという
ことが分かればいいだけだ。マウスだよ。
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Methods:
Fetal membranes were harvested from pregnant CD-1 mice
a, Chimaeric mouse with STAP cells derived from CD45+ cells of B6GFP × 129/Sv mice (B6GFP, C57BL/6 line with cag-gfp transgene). Arrows indicate a placenta and a yolk sac.
b, Cross-sections of yolk sac (top) and placenta (bottom). GFP-positive cells (arrows) were seen only in yolk sac and placenta of the STAP cell chimaera. Scale bars, 50 μm.
c, Co-immunostaining showed that these GFP-positive cells (right) were found in the extra-embryonic endoderm-derived epithelial cells (pan-cytokeratin+ and overlying laminin+ basement membrane; left) of the yolk sac. Scale bar, 10 μm.