This Week in Cell

In Cell this week, researchers in Italy say that TAZ, a transducer of the Hippo pathway, is responsible for conferring the properties of cancer stem cells onto breast cancer cells. TAZ is required to sustain self-renewal and tumor-initiation capacities in breast cancer stem cells, the authors write. "TAZ protein levels and activity are elevated in prospective CSCs and in poorly differentiated human tumors and have prognostic value," they add.

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Senator Elizabeth Warren (D-Mass.) has released the results of a genetic ancestry analysis, the Boston Globe reports.

Retraction Watch's Ivan Oransky and Adam Marcus report that Harvard Medical School and Brigham and Women's Hospital have recommended that more than 30 papers from a former researcher be retracted.

Thomas Steitz, who won the 2009 chemistry Nobel Prize for his ribosome work, has died, the Washington Post reports.

In PLOS this week: mechanisms for genes implicated in coronary artery disease, rumen microbes and host genetics influence cow methane production, and more.