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First published online June 8, 2005

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Membrane dynamics and cell invasion

The basement membrane (BM) represents a barrier to cell migration and, consequently, needs to be broken down before normal and tumourigenic cells can migrate during development and metastasis, respectively. On p. 3069, Medioni and Noselli report that during Drosophila oogenesis, the anterior polar cells of the egg chamber are transiently and asymmetrically capped with BM proteins before they migrate into the developing egg chamber with outer border cells. This apical capping of polar cells involves the Drab5-dependent basal-to-apical transcytosis of BM proteins; subsequent cap shedding, which precedes migration, requires the presence of the outer border cells. Thus, as in tumours, BM degradation at the leading edge of the border cell cluster is required before migration can start. Further studies in this genetically amenable model should provide insights into this novel behaviour of the BM in invasive cell clusters.

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Related articles in Development:

Dynamics of the basement membrane in invasive epithelial clusters in Drosophila

Caroline Medioni and Stéphane Noselli
Development 2005 132: 3069-3077. [Abstract] [Full Text]  

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Related articles in Development Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Search for Related Content Social Bookmarking                         What's this?