Putting cells through their paces

The spheroid is the width of a few human hairs and made up of 25,000 human lung cells clustered together with iron particle, suspended in a fluid that runs though a microscopic obstacle course of channels sealed between glass.

How anthrax spores grow in cultured human tissues

Cultured human lung cells infected with a benign version of anthrax spores have yielded insights into how anthrax grows and spreads in exposed people. The study, published in the Journal of Applied Microbiology, will help ...

A digital version of you

When NASA's Mars Rover Opportunity sends a photograph of the alien landscape back to Earth, it relays the information as digital data, a series of ones and zeros that computers assemble into pictures that we can see. What ...

Researchers advance the art of drug testing

On a rectangular chip slightly smaller than a person's finger, two scientists and an engineer are writing what they hope will be the blueprint for the future of drug testing.

Flipping the 'off' switch on cell growth

A protein known for turning on genes to help cells survive low-oxygen conditions also slows down the copying of new DNA strands, thus shutting down the growth of new cells, Johns Hopkins researchers report. Their discovery ...

Novel technique to produce stem cells from peripheral blood

Stem cells are a valuable resource for medical and biological research, but are difficult to study due to ethical and societal barriers. However, genetically manipulated cells from adults may provide a path to study stem ...

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