Circadian Clock and Breast Cancer

Study Links Breast Cancer to Body’s Internal Clock by Neuroscience News

Researchers have found an association between the Per2 gene and breast cancer. The Per2 gene plays an important role in both the body's circadian clock and mammary glad development.

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Altered expression of luminal and basal markers in Per2-/- mammary glands. Immunflorescent staining showing localization of myoepthelial (K14 -green) and luminal (E-cadherin-red) markers in virgin Per2-/- mammary glands.  image is credited to Dr. Cole McQueen, Texas A&M University.