Not This Time

The first human stem-cell based drug failed two late-stage clinical trials, reports the New York Times. The drug, Prochymal, from Osiris Therapeutics was made from mesenchymal stem cells from healthy young adults and was found to be no more effective than placebo in treating graft-versus-host disease. Prochymal did, however, appear to have an effect in a subset of patients. "Prochymal is having a clear effect in the liver, and that is the most underserved patient population," CEO C.

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Gene drives might run into biological resistance, the Economist reports.

Forensic experts exhumed painter Salvador Dalí's body to collect DNA for a paternity test, CBS News reports.

Yale Environment 360 writes that synthetic and conservation biologists aren't always on the same wavelength, but they are trying to reach an understanding.

In Science this week: full CRISPR locus integration complex structure, and more.