National Cancer Institute researchers report that, in their mouse study, breast cancer gene expression signatures were "consistently predictive" of metastasis. As they report in Cancer Research, the scientists conducted a series of gene expression profiling experiments and saw that the signature is combination of genes expressed in all tissues as well as from the tumor epithelium and somatic mutations.

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The UK's Human Fertility and Embryology Authority calls for consumer genetic testing companies to warn customers that testing could uncover family secrets, according to the Guardian.

The New York Times reports that United Nations delegates have been discussing how to govern the genetic resources of the deep sea.

Researchers have transplanted edited cells into mice that appear to combat cocaine addiction, New Scientist reports.

In PNAS this week: analysis of proteolytic enzymes secreted by circulating tumor cells, phylogenetic study of Fv1 evolution, and more.