Establishment and Characterization of a Telomerase-Immortalized Sheep Trophoblast Cell Line

Figure 4

Growth characteristics and invasiveness of primary STCs and immortalized STCs. Primary STCs (a) and hTERT-STCs at passage 50 (b) are seen invading the lower portion of the chamber on Giemsa staining. HeLa cells (c) served as a positive control (scale bars, 50 μm). (d) Growth curves of primary STCs and hTERT-GTCs at passage 50. hTERT-STCs: human telomerase reverse transcriptase-sheep trophoblast cell line.

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