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Max-Planck-Institut für Kolloid- und Grenzflächenforschung Am Mühlenberg 1 im Potsdam Science Park 14476 Potsdam, Germany http://www.mpikg.mpg.de
Contact Ms Dr. Rumiana Dimova +49 331 5679615
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Max-Planck-Institut für Kolloid- und Grenzflächenforschung

Nanoröhrchen: Zellmembran auf Vorrat

Osmotische Kräfte an der Bildung von Nanoröhrchen in Zellen beteiligt

(PresseBox) (Potsdam, )
Camping-Neulinge wundern sich beim Auffalten eines Zeltes, dass die große Zeltplane in einen fußballgroßen Sack passt. Biologen staunen über Ähnliches: Wenn sich eine Zelle teilt, wächst die Fläche der Zellmembran. Auch wenn im Innern der Zelle Stoffe von einem Organell zum anderen gebracht werden, bilden sich membranumschlossene Transportkügelchen, so genannte Vesikel. Um Membranen schnell zur Verfügung stellen zu können, speichern Zellen in ihrem Innern Membranfläche in Form von Nanoröhrchen, schlauchförmigen Einstülpungen der Zellmembran - ähnlich wie die zusammengefaltete Zeltplane. Forscher des Max-Planck-Institutes für Kolloid- und Grenzflächenforschung in Potsdam haben nun einen Mechanismus entdeckt, wie die Zelle stabile Membran-Nanoröhrchen bildet.

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