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Nanoparticle injection blocks breast cancer growth in mice

Nanoparticles (red) injected directly into mammary duct tissue (cell nuclei shown in blue and basement membrane shown in green) reduced tumor incidence by 75 percent in mice, a study shows. 

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A nanoparticle-based therapy delivered directly to the mammary ducts could potentially stop precancerous cells from becoming full-blown breast cancer. In mice, the treatment shut down a gene involved in unchecked cancer growth, researchers report January 1 in Science Translational Medicine.

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