Generation and characterization of human Fetal membrane and Decidual cell lines for reproductive biology experiments

Enkhtuya Radnaa, Rheanna Urrabaz-Garza, Nathan Elrod, Mariana De Castro Silva, Richard Pyles, Arum Han, Ramkumar Menon

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Human fetal membrane and maternal decidua parietalis form one of the major feto-maternal interfaces during pregnancy. Studies on this feto-maternal interface is limited as several investigators have limited access to the placenta, and experience difficulties to isolate and maintain primary cells. Many cell lines that are currently available do not have the characteristics or properties of their primary cells of origin. Therefore, we created, characterized the immortalized cells from primary isolates from fetal membrane-derived amnion epithelial cells, amnion and chorion mesenchymal cells, chorion trophoblast cells and maternal decidua parietalis cells. Primary cells were isolated from a healthy full-term, not in labor placenta. Primary cells were immortalized using either a HPV16E6E7 retroviral or a SV40T lentiviral system. The immortalized cells were characterized for the morphology, cell type-specific markers, and cell signalling pathway activation. Genomic stability of these cells was tested using RNA seq, karyotyping, and short tandem repeats DNA analysis. Immortalized cells show their characteristic morphology, and express respective epithelial, mesenchymal and decidual markers similar to that of primary cells. Gene expression of immortalized and primary cells were highly correlated (R = 0.798 to R = 0.974). Short tandem repeats DNA analysis showed in the late passage number (>P30) of cell lines matched 84-100% to the early passage number (<P10) of the cell lines revealing there were no genetic drift over the passages. Karyotyping also revealed no chromosomal anomalies. Creation of these cell lines can standardize experimental approaches, eliminate subject to subject variabilities, and benefit the reproductive biological studies on pregnancies by using these cells.

Original languageEnglish (US)
Pages (from-to)568-582
Number of pages15
JournalBiology of reproduction
Issue number3
StatePublished - Mar 1 2022


  • HPV16E6E7
  • Human placental fetal membrane
  • SV40T-based immortalization
  • fetal-maternal cells

ASJC Scopus subject areas

  • Reproductive Medicine


Dive into the research topics of 'Generation and characterization of human Fetal membrane and Decidual cell lines for reproductive biology experiments'. Together they form a unique fingerprint.

Cite this