It appears to block the action of a protein called Stat 1, which becomes activated within cells after a stressful event such as a heart attack or stroke, and plays a role in inducing cell death.

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The idea is that the vaccines will train T cells to spot cancer, while the antibody will make sure the T cells remain activated long enough to do their dirty work.

FORBES: Magazine Article

The nastiest-looking arteries might be stabilized with some form of local therapy, such as drug-coated stents, light-activated drugs to kill off inflamed cells or even gene therapy.

FORBES: Peeking at Plaque

PD-1 "receptors" sit on the surface of immune-system cells when they're activated and on the hunt for enemies.

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And it means that in female cells a certain proportion of activated genes exist in higher concentrations than was once thought.

ECONOMIST: Genetics

The first light-activated neurons were cultivated as layers of cells in Petri dishes, but researchers were quickly able to make the technique work in flies, worms, zebrafish, mice, and monkeys.

WSJ: Scientists Cast Light Onto Roots of Illness Deep in the Brain

The company is also experimenting with a new way of storing the hydrogen that will fuel its cells a fabric made of fibres of activated carbon that can (when cooled with liquid nitrogen) soak up the same amount of energy per kilogram as petrol.

ECONOMIST: Clean living in Iceland