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Breast cancer cells recycle to escape death by hormonal therapy
Date:10/2/2008

by autophagy, there is some evidence arsenic trioxide, a compound used in China to treat some aggressive cancers, prompts cancer cells to die from self digestion, she says. That and other compounds will no doubt be studied further, she says.

Dr. Schoenlein believes breast cancer survival during macroautophagy requires high activity of the tumor suppressor protein Rb and low levels of the lipid ceramide. Ceramide is vital but causes cell death at high levels. MCG researcher Erhard Bieberich and colleague Dr. Brian G. Condie at the University of Georgia showed in 2003 that high levels of ceramide kill cells that are unnecessary to the developing brain. The new studies will further explore the roles of Rb and ceramide in breast cancer survival during macroautophagy and determine if chloroquine can change their balance.


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Contact: Toni Baker
tbaker@mcg.edu
706-721-4421
Medical College of Georgia
Source:Eurekalert  

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