Cited by 39Reproductive System and PregnancyPregnancy and preeclampsia studiesGestational Trophoblastic Disease Studies

ED27 trophoblast-like cells isolated from first-trimester chorionic villi are genetically identical to HeLa cells yet exhibit a distinct phenotype

Kniss, D.A., Xie, Y., Li, Y., Kumar, S., Linton, E.A., Cohen, P., Fan-Havard, P., Redman, C.W.G. +1 more·2002·Placenta

Abstract

ED(27) trophoblast-like cells were prepared from human chorionic villus samples obtained at 9 weeks gestation and have been grown continuously in vitro without phenotypic drift for nearly a decade. These cells express many trophoblast markers, including cytokeratin, placental alkaline phosphatase (PLAP), secretion of 17beta-estradiol, and a microvillous apical surface. The ED(27) cell line is a useful model system for studies of placental cell biology and has been distributed to laboratories world-wide. However, experiments to investigate their relationship to primary villous cytotrophoblast have shown that these cells do not secrete detectable amounts of human chorionic gonadotropin in culture and, when digested with trypsin, disperse into individual cells. Furthermore, immunocytochemical studies demonstrated that, unlike villous cytotrophoblasts, ED(27) cells were immunoreactive with monoclonal antibodies recognizing some HLA Class I antigens. This was not HLA-G, however, as would be expected if these cells originated from extravillous cytotrophoblasts, but rather classical HLA-A, B which is thought not to be expressed by any trophoblast subpopulations. These inconsistencies prompted us to question the authenticity of the continuous cell line as it now exists. Genetic haplotype analysis using the polymerase chain reaction (PCR) revealed that ED(27) was genetically identically to the HeLa cell line. Inasmuch as HeLa cells have never been grown in the laboratory (DAK), the on…

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Crossref · 10.1053/plac.2001.0749

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  • STR-based detection found HeLa contamination in the human endometrial cell line HES.

    “A striking example is the STR-based detection of HeLa contamination in the human endometrial cell line HES, highlighting the risk of secondary contamination [32,33].”

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Authors
Kniss, D. A., Xie, Y., Li, Y., Kumar, S., Linton, E. A., Cohen, P., Fan-Havard, P., Redman, C. W. G., & Sargent, I. L.
Affiliations
The Ohio State University (US)
Venue
Placenta
Publisher
Elsevier BV
Published
2002-01
Volume
23
Issue
1
Pages
32-43
ISSN
0143-4004 (ISSN-L)
OpenAlex
W2013571179
Cited by
39
References
35
Citations by year
2024: 1 · 2023: 1 · 2022: 1 · 2020: 1 · 2019: 1 · 2015: 1 · 2014: 2 · 2013: 2 · 2012: 3
FWCI
1.75
Type
journal article
Language
en
Open access
closed
Locations
  • Placenta (publishedVersion)
  • PubMed (publishedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
Funders
  • Ohio State University
  • National Institutes of Health (5r01hd035881-04)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01 HD-35881)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Reproductive System and Pregnancy
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Gestational Trophoblastic Disease Studies
Keywords
trophoblast-like cells, chorionic villi, first trimester, HLA class I antigens, placental alkaline phosphatase, estrogen secretion, villous cytotrophoblast, cell line quality control
MeSH terms
Adult, Cell Line, Transformed, Chorionic Villi, DNA, Equipment Contamination, Female, Flow Cytometry, Haplotypes, HeLa Cells, Humans, Immunohistochemistry, Phenotype, Pregnancy, Pregnancy Trimester, First, Trophoblasts, Histocompatibility Antigens Class I, Biomarkers, Polymerase Chain Reaction, Culture Techniques

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