This Week in Nature

Researchers at Children's Hospital Boston have published results proving that by taking the same factors that Takahashi and Yamanaka's groups did last year to reprogram mouse skin cells into induced pluripotent stem (iPS) cells, they could reprogram human cells to pluripotency. A news and views article looks at some of the limitations of their work.

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The UK's Nuffield Council on Bioethics says genetically modifying human embryos could be morally permissible, according to the Guardian.

A new Nature Biotechnology paper reports that CRISPR-Cas9 gene editing can lead to large deletions or complex rearrangements that could be pathogenic.

The Wall Street Journal likens a prototype developed by Synthetic Genomics to a "biological fax machine."

In PNAS this week: strategy for reactivating Rett syndrome-linked MECP2, small molecules able to suppress Staphylococcus aureus virulence, and more.