alexa Obese + Stiffer Breast = Tumors in Women

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Obese + Stiffer Breast = Tumors in Women

A Cornell study in Women, suggest that obese have a higher risk and a worse prognosis for breast cancer, but the reasons why have remained unclear. The study of mice and women shows obesity leads to a stiffening of a meshwork of material that surrounds fat cells in the breast, called the extracellular matrix, and these biomechanical changes create the right conditions for tumor growth. Fat tissue in obese women has more cells called myofibroblasts, compared with fat tissue in normal-weight women. Myofibroblasts are wound-healing cells that determine whether a scar will form. All cells secrete compounds to create an extracellular matrix, and they remodel and grab onto this meshwork to make tissue. But when myofibroblasts make an extracellular matrix, they pull together – the action needed to close a wound – stiffening the tissue.

 
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