Table of Contents

cover image

Volume 23, Number 4
25 February 2004

pp 681-988

"Secretome City" - Illustration based on a 2-D DIGE image

Fluorescence 2-D difference gel electrophoresis (2-D DIGE) with two different CyDye fluors can be used for direct differential protein expression analysis. Here, the cellular proteome was compared to the "secretome", both derived from the same colon cancer cells in vitro. Green spots represent proteins exlusively present in the cell lysate and red spots show proteins highly enriched in the secretome. The image was produced by Martin W. Volmer, a PhD student in the group of Irmgard Schwarte-Waldhoff at the University of Bochum, Germany, and illustrates part of a project investigating the role of the tumor suppressor gene Smad4 in colorectal carcinogenesis and its impact on the tumor cells' microenvironment. Further information can be found in Volmer et al (2004), Proteomics, in press.

The original image is printed with kind permission of Proteomics (Wiley-VCH).

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