Breast Cancer

Investigators at University of Buenos Aires have published new data on breast cancer

Published in Cancer Weekly, February 10th, 2009

"Currently, an in vivo spontaneous model of estrogen dependent, tamoxifen sensitive breast cancer does not exist. We show here the characterization of the M05 mammary tumor that appeared spontaneously in a 1-year-old virgin female BALB/c mouse in our animal facility," scientists in Buenos Aires, Argentina report.

"The M05 tumor is a semi-differentiated adenocarcinoma that expresses estrogen and progesterone receptors. When it was transplanted to either male or ovariectomized female mice it did not grow. Moreover, ovariectomy or treatment with tamoxifen of tumor bearing mice led to a halt in tumor growth. Treatment of ovariectomized mice that had been inoculated with the...

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Source: Cancer Weekly (2009-02-10)

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