Why does breast
cancer sometimes recur after treatment? A new study suggests that in part,
the answer may lie in the effect of adjuvant hormone therapy on some cancer
cells.
Researchers from different
universities looked at the effect of adjuvant endocrine therapy — a type of
hormone therapy — on these different breast cancer cells. Their findings
suggest the drugs may actually kill some cells and switch others into this
sleeper state. If we can unlock the secrets of these dormant cells, we may be
able to find a way of preventing cancer coming back, either by holding the
cells in permanent sleep mode or by waking them up and killing them.
Doctors usually recommend hormone
therapies for the treatment of estrogen receptor-positive breast cancers, in which the
cancer cells grow and spread by interacting with a hormone called estrogen. The
American Cancer Society note that these make up the majority about two-thirds
of breast cancer cases. Typically, a course of hormone therapy follows surgery for tumor removal, and while this strategy is successful in
many cases, some people experience a relapse. This can lead to metastasis — a
state in which cancer cells spread throughout the body, making it more
difficult for doctors to spot and treat. This state can be temporary; meaning
that there is a possibility these cancer cells will later "awaken,"
leading to the formation of new tumors. These sleeper cells seem to be an
intermediate stage to the cells becoming resistant to the cancer drugs,
For more details please follow the link:
https://frontiersmeetings.com/conferences/breastcancercongress/
For queries and details contact us: breastcancer@globalbreastcancercongress.org
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