In continuation of my update on Enzalutamide
We know that, The androgen receptor (AR), also known as NR3C4 (nuclear receptor subfamily 3, group C, member 4), is a type of nuclear receptor that is activated by binding of either of the androgenic hormones testosterone or dihydrotestosterone in the cytoplasm and then translocating into the nucleus. The androgen receptor is most closely related to the progesterone receptor, and progestins in higher dosages can block the androgen receptor...
Estrogen and progesterone receptors, and the gene HER2 - these are the big three markers and/or targets in breast cancer. Evidence presented at the AACR Annual Meeting 2013 adds a fourth: androgen receptors.
"This is a continuing line of work with all evidence pointing toward the addition of the androgen receptor as potential target and useful marker in all of the major subtypes of breast cancer," says Jennifer Richer, PhD, investigator at the University of Colorado Cancer Center and co-director of the CU Cancer Center Tissue Processing and Procurement Core.
The finding of androgen receptors (AR) as a potential target in breast cancer is especially important in light of its prevalence in breast cancers that don't express other hormone receptor targets or have developed resistance to treatments that target estrogen dependence. Overall, approximately 77 percent of breast cancers are positive for AR, including 88 percent of cancers that are estrogen receptor positive, 59 percent of those that are HER2 positive, and 20-32 percent of triple negative breast cancers.....
"This is a continuing line of work with all evidence pointing toward the addition of the androgen receptor as potential target and useful marker in all of the major subtypes of breast cancer," says Jennifer Richer, PhD, investigator at the University of Colorado Cancer Center and co-director of the CU Cancer Center Tissue Processing and Procurement Core.
The finding of androgen receptors (AR) as a potential target in breast cancer is especially important in light of its prevalence in breast cancers that don't express other hormone receptor targets or have developed resistance to treatments that target estrogen dependence. Overall, approximately 77 percent of breast cancers are positive for AR, including 88 percent of cancers that are estrogen receptor positive, 59 percent of those that are HER2 positive, and 20-32 percent of triple negative breast cancers.....
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