Pregnancy reprograms breast cells, reducing cancer risk

Human breast organoids. The organoids were grown in 3D matrix (matrigel) and treated with DOX to induce cMYC expression (red). The cultures were fixed and then stained with antibodies that recognized each of these proteins: Green = cytokeratin 5 = basal breast cells; Blue = cytokeratin 8 = luminal breast cells (the ones that produce milk); Red = cMYC (the oncogene described in this study). Photo credit: Chen Chen.

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