Human Reproduction Update, Vol.3, No.2 pp.117-123, 1997
© European Society of Human Reproduction and Embryology 1997; all rights reserved
Human endometriosis-derived permanent cell line (FbEM-1): establishment and characterization
0 Service de Gynecologie-Obstetrique, Hopital Beaujon, Clichy, France 1 Laboratoire d'Anatomie Pathologique, Institut Curie, Paris, France 2 Service de Gynecologie-Obstetrique, CHU-Clermont Ferrand and 3 INSERM U90, Hopital Necker, Rue de Sevres, 75015-Paris, France z Corresponding author
Abstract
A human epithelial-like cell line derived from peritoneal implants from a patient with gonadotrophin-releasing hormone (GnRH) agonist-resistant endometriosis graded as stage IVd according to the American Fertility Society classification was established in vitro. This cell line, designated FbEM-1, exhibited an epithelial-like morphology, grew in suspension and was immunoreactive for cytokeratins 8, 18, 19, vimentin and human leukocyte class I antigens. The cultured cells were negative for various haematopoietic cell markers, including the lymphoid cell antigens CD3, CD20 and CD45, von Willebrandt factor, carcinoembryonic antigen and the carcinoma antigen-125 (CA-125). In addition, the FbEM-1 cells were found to be moderately positive for periodic acid Schiff's (PAS) solution but were negative for
-naphthyl acetate esterase, peroxidase and chloroacetate esterase activities. Using specific antibodies against the progesterone, androgen and oestrogen receptors, 40% and 5-10% of the cells immunostained for progesterone and androgen receptors respectively, while oestrogen receptors were not detected. On cytogenetic analysis using R-banding, these cells showed numerous chromosomal aberrations, including loss of one chromosome X, 4q+, 5q+, trisomy 7, 8 and 10 and tetrasomy of chromosomes 17, 18, 19 and 20. These data show that the continuously growing FbEM-1 cell line established from endometriotic implants may be useful in achieving better understanding of the histogenesis of endometriosis.
Keywords: cell line/endometriosis/karyotype/monoclonal antibodies
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