Rosetta Genomics this week announced the publication of data demonstrating the involvement of certain microRNAs in epithelial-mesenchymal transition, or EMT, in cancers of unknown primary origin.

EMT is the acquisition of migratory, mesenchymal-like properties of epithelial cells, and is often associated with cancer metastasis.

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In PNAS this week: co-evolutionary signatures of insect hosts and bacterial symbionts, distinct transcript isoforms of high-grade ovarian cancer, and more.

Adam Rutherford discusses genetic genealogy at the Guardian.

Portions of the US 21st Century Cures Act are raising some safety concerns.

David Dobbs writes at Buzzfeed that genomics has delivered little on its promises.