Merrimack Pharmaceuticals CEO Robert Mulroy says the traditional approach to cancer — making drugs that go after certain proteins — is "fundamentally flawed," according to the Forbes' Treatments blog's Robert Langreth. Merrimack is now working with Sanofi-Aventis to develop cancer drugs using the principles of systems biology.

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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.

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

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