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Brain tumors: Tissue stem cell turning into tumor stem cell
Date:4/1/2010

els. This enables the cells to migrate into distant brain regions and, thus, to generate the typical coral-like growth of glioblastoma.

"We recognize brain stem cells specifically by their Tlx production. If we boost it, the tissue stem cell turns into a cancer stem cell from which malignant glioblastomas arise. Therefore, we are now able, for the first time, to hold brain stem cells directly responsible for the formation of brain tumor stem cells," Gnther Schtz explains.

The researchers expect to be able to develop new therapies to treat glioblastoma on the basis of these results from fundamental cell biology research. Tlx seems to play its fatal role not only in mouse brains. Studying tumor tissue from glioblastoma patients, Lichter and Reifenberger discovered that the Tlx gene is often present in multiple copies and, thus, more Tlx protein is produced. "Apparently, human brain tumor stem cells also depend on Tlx. Therefore, we can now try to develop therapies that are directed very specifically against Tlx producing cells," said Schtz describing the next steps. The mice whose brain stem cells overproduce Tlx are an ideal model system for such investigations.


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Contact: Dr. Sibylle Kohlstdt
s.kohlstaedt@dkfz.de
Helmholtz Association of German Research Centres
Source:Eurekalert

Page: 1 2

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