Cytotrophoblasts, CTBPRO2®

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Cytotrophoblasts are the fetal-origin epithelial cells that are responsible, in part, for creating a barrier between the maternal blood and the developing baby. Cytotrophoblasts (CTBPRO2®) available through the Amnion Foundation are immunopositive for CD49f and express both the epidermal growth factor receptor (EGFR) and cytokeratin 7 (CK7). They also secrete human chorionic gonadotropin (hCG) in culture.

CTBPRO2 vials have 500k cells in each vial and are released after a vigorous QC process.

The cytotrophoblasts act as lineage-restricted progenitor cells which can self-renew and give rise to two different types of trophoblasts. We have developed methods that enable the isolation and propagation cytotrophoblast progenitor cells from full term placenta, thereby creating a non-controversial resource for these valuable cells.

CTBPRO2 cells are shipped on dry ice. Amnion Foundation ships cellular products Monday through Wednesday via overnight delivery. A dry ice surcharge will automatically be added to purchases of CTBPRO2 cells. For bulk orders and pricing please contact us at

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