Editors from 23 journals have sent a letter to officials at seven Japanese universities that once employed anesthesiologist Yoshitaka Fujii to demand they validate some 193 papers he has written and published, reports Retraction Watch's Adam Marcus. The editors say that if the papers are not validated, they will be retracted en masse.

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The US Food and Drug Administration has new guidelines that enable some gene and cell therapies to undergo expedited review, according to the New York Times.

Using gene drives to control invasive species might be too risky, an initial advocate of the approach says.

In Science this week: intellectual property experts argue patent battles such as the one over CRISPR are wasteful, and more.

Researchers have grown tumors in 3D cell cultures to better understand cancer, the Economist reports.