Senescent cells after pregnancy may fuel postpartum breast cancer spread
Medical Xpress
February 18, 2026
Postpartum breast cancer is diagnosed five to ten years after giving birth. It is associated with a higher risk of metastasis and a lower survival rate compared with women who have not been pregnant or those diagnosed during pregnancy. A team from the Institut Pasteur set out to understand the mammary gland mechanisms involved in tumor formation during involution, a major tissue remodeling process that occurs after pregnancy.
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Originally published on Medical Xpress on 2/18/2026