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Test of maturity for stem cells
Date:5/6/2008

This release is available in German.

Stem cells are extremely versatile: They can develop in 220 different ways, transforming themselves into a correspondingly diverse range of specialized body cells. Biologists and medical scientists plan to make use of this differentiation ability to selectively harvest cardiac, skin or nerve cells for the treatment of different diseases. However, the stem cell culture techniques practiced today are not very efficient. What proportion of a mass of stem cells is transformed into which body cells" And in what conditions" We need devices that keep doing the same thing and thus deliver statistically reliable data, says Professor Gnter Fuhr, director of the Fraunhofer Institute for Biomedical Engineering IBMT in St. Ingbert.

Two prototypes of laboratory devices for stem cell differentiation enable the complex careers of stem cells to be systematically examined for the first time ever. These devices are the result of the international project CellPROM Cell Programming by Nanoscaled Devices which was funded by the European Union to the tune of 16.7 million euros and coordinated by the IBMT. The type of cell culture used until now is too far removed from the natural situation, says CellPROM project coordinator Daniel Schmitt for in the body, the stem cells come into contact with solute nutrients, messenger RNAs and a large number of different cells. Millions of proteins rest in or on the cell membranes and excite the stem cells to transform themselves into specialized cells. We want to provide the stem cells in the laboratory with a surface that is as similar as possible to the cell membranes, explains Daniel Schmitt. To this end, the consortium developed a variety of methods by which different biomolecules can be efficiently applied to cell-compatible surfaces.

In the two machines MagnaLab and NazcaLab the
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Contact: Daniel Schmitt
daniel.schmitt@ibmt.fraunhofer.de
49-689-498-0120
Fraunhofer-Gesellschaft
Source:Eurekalert  

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