Size matters

macrophage illustration

Macrophages are the body’s immune attack force, but how do they recognize their target particles? Fletcher Lab investigators have shown how macrophage target recognition is controlled by the height of the antibody above the target cell surface. They found that the gap created between the target cell and macrophage by the antibody, which bridges an antigen on the target cell surface and the macrophage’s receptors, must be small enough to exclude a molecule that turns off the receptor. This has broad implications for development of therapeutic antibodies because it establishes a size threshold for effective cell surface antigen targets.

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Brown fat flexes its muscle to burn energy and calories

brown fat

Professors Sanjay Kumar and Kevin Healy, in collaboration with Professor of Nutritional Sciences and Toxicology Andreas Stahl, have discovered that the same kind of fat cells that help newborn babies regulate their body temperature could be a target for weight-loss drugs in adults.

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Dueber lab moves closer to clean, green indigo dyes

Duber and ross

Professor John Dueber’s lab has advanced two steps closer to cleaning up the dirty production of indigo dyes. Using synthetic biology they have done away with the wasteful chemical synthesis of indigo, and removed the damaging bleaching stage that converts indigo to leucoindigo.

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