Breast tumors evolve in response to hormone therapy

cp418

https://www.sciencedaily.com/releases/2016/08/1608...

maybe this was already posted....

New study shows breast tumors evolve in response to hormone therapy

A new analysis of breast tumors, before and after hormone-reduction therapy, reveals the extreme genetic complexity of these tumors and the variety of responses that are possible to estrogen-deprivation treatments. The findings also suggest that analyzing a single sample of the breast tumor is insufficient for understanding how a patient should best be treated.

cp418

https://www.sciencedaily.com/releases/2016/08/1608...

Research reveals patient can have more than one breast cancer, points at treatments

Breast cancer tumors are complex and dynamic. They comprise a population of continuously dividing cells that carry different genetic mutations. New research reveals that treating human estrogen-receptor positive breast cancer tumors with estrogen-deprivation therapy results in changes in the spectrum of mutations in the tumor population.