WASHINGTON (AP) -- Doctors may be able to determine which women will be helped by the powerful breast cancer drug tamoxifen.
They've pinpointed a molecular on-off switch that the drug uses to attack breast cancer -- the same switch that prevents it from working in some women.
Researchers say that should eventually help doctors test for resistance to the drug. It's the chief treatment for breast cancers that are driven by estrogen.
Tamoxifen doesn't work in as many as one-third of women who are treated with it.
Authors of the study, which appears in the journal Nature, say a test for resistance is still about five years away.
(Copyright 2008 by The Associated Press. All Rights Reserved.)
To comment, the following rules must be followed:
If you believe a comment violates the above rules, please use the Flagging Tool to alert a Moderator.
Flagging does not guarantee removal.
Decisions to suspend or unsuspend accounts are made by Station Moderators.
Links require admin approval before posting.
Questions may be sent to email@example.com. Please provide detailed information.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.