Stem cells: Embryonic lines from four-cell embryos show pluripotency

Darkfrog submitted, created time 5 months 4 weeks (www.eurekalert.org)

A team in Barcelona has developed a human embryonic stem cell line from one cell of a four-cell blastomere. Although I doubt that particular blastomere was later implanted into a woman, we know from fertility treatments that four-celled embryos that lose one cell during the freeze-thaw process can successfully develop into children. The major accomplishment here is that these stem cell lines do not need to be co-cultured with other cells

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