Genes & Cells

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Cows in a field

SMELL THAT  Breathing in dust from dairy farms could protect kids from developing allergies and asthma. Dried-up cow manure could harbor the bits of bacteria that tell lung cells to calm down when faced with allergens.

A new microscopy technique called nonlinear SIM gives a better look at how the cell’s internal scaffolding, or cytoskeleton, changes over time. Shown is a still image from a video of cytoskeletal proteins in a mouse embryonic fibroblast cell. 

poliovirus

CHANGING FACE  An immunodeficient man has been excreting live poliovirus for 28 years. His viral strains differ from the one he received in a vaccine. A simulated virus particle shows some of these changes, in surface regions (red) that interact with human immune proteins and elsewhere (blue).   

Genes & Cells

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