part_of part of part of has_quality has quality has quality derives_from intermediate trophoblast cell Homo sapiens female placenta Homo sapiens cell line HTR8/SVneo htr_8_svneo First trimester human trophoblast cells established by immortalizing a physiologic extravillous trophoblast cell via transfection with a plasmid containing the simian virus 40 large T antigen (SV40) (see Graham et al., 1993). Cells are a thin layer of ectoderm that forms the wall of many mammalian blastulas and functions in the nutrition and implantation of the embryo. HTR-8/SVneo HTR8-SVNEO HTR-8-SVNEO http://www.sciencedirect.com/science/article/pii/S0014482783711390#