Comparative study of mouse and human feeder cells for human embryonic stem cells

The International Journal of Developmental Biology
Livia EiselleovaPetr Dvorak

Abstract

Various types of feeder cells have been adopted for the culture of human embryonic stem cells (hESCs) to improve their attachment and provide them with stemness-supporting factors. However, feeder cells differ in their capacity to support the growth of undifferentiated hESCs. Here, we compared the expression and secretion of four well-established regulators of hESC pluripotency and/or differentiation among five lines of human foreskin fibroblasts and primary mouse embryonic fibroblasts throughout a standard hESC culture procedure. We found that human and mouse feeder cells secreted comparable levels of TGF beta 1. However, mouse feeder cells secreted larger quantities of activin A than human feeder cells. Conversely, FGF-2, which was produced by human feeder cells, could not be detected in culture media from mouse feeder cells. The quantity of BMP-4 was at about the level of detectability in media from all feeder cell types, although BMP-4 dimers were present in all feeder cells. Production of TGF beta 1, activin A, and FGF-2 varied considerably among the human-derived feeder cell lines. Low- and high-producing human feeder cells as well as mouse feeder cells were evaluated for their ability to support the undifferentiated grow...Continue Reading

Citations

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