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Biological Chemistry

Editor-in-Chief: Brüne, Bernhard

Editorial Board Member: Buchner, Johannes / Ludwig, Stephan / Sies, Helmut / Turk, Boris / Wittinghofer, Alfred

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Human monocytes augment invasiveness and proteolytic activity of inflammatory breast cancer

Mona Mostafa Mohamed1 / Dora Cavallo-Medved2 / Bonnie F. Sloane3

1Department of Zoology, Faculty of Science, Cairo University, 12613 Cairo, Egypt

2Department of Pharmacology, Wayne State University, Detroit, MI 48201, USA and Karmanos Cancer Institute, Wayne State University, Detroit, MI 48201, USA

3Department of Pharmacology, Wayne State University, Detroit, MI 48201, USA and Karmanos Cancer Institute, Wayne State University, Detroit, MI 48201, USA

Corresponding author

Citation Information: Biological Chemistry. Volume 389, Issue 8, Pages 1117–1121, ISSN (Online) 1437-4315, ISSN (Print) 1431-6730, DOI: 10.1515/BC.2008.117, August 2008

Publication History

Received:
2007-12-14
Accepted:
2008-04-07
Published Online:
2008-08-19

Abstract

Inflammatory breast cancer (IBC) is the most aggressive form of breast cancer, and here, we examined in vitro the interactions between the human IBC cell line SUM149 and U937 human naive monocytes. We found an altered morphology, enhanced invasiveness and proteolytic activity of SUM149 cells when cultured with U937 cells or in U937-conditioned media (U937-CM). Increases in expression and activity of the cysteine protease cathepsin B and expression of caveolin-1 were also detected in SUM149 cells grown in U937-CM, thus suggesting a contribution of these proteins to the augmented invasion through and proteolysis of the extracellular matrix by the IBC cells.

Keywords: cathepsin B; caveolin-1; co-culture; extracellular matrix; proteolysis

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
Eslam A. El-Ghonaimy, Mohamed El-Shinawi, Sherif A. Ibrahim, Hisham El-Ghazaly, Reda Abd-El-Tawab, Mohamed A. Nouh, Tahani El-Mamlouk, and Mona M. Mohamed
FEBS Journal, 2015, Volume 282, Number 2, Page 271
[2]
Hossam Taha Mohamed, Mohamed El-Shinawi, M. Akram Nouh, Abdel-Rahman Bashtar, Elsayed Tarek Elsayed, Robert J. Schneider, and Mona Mostafa Mohamed
Frontiers in Oncology, 2014, Volume 4
[3]
Mona M. Mohamed, Diaa Al-Raawi, Salwa F. Sabet, and Mohamed El-Shinawi
Journal of Advanced Research, 2014, Volume 5, Number 5, Page 525
[4]
Mansoureh Sameni, Dora Cavallo-Medved, Julie Dosescu, Christopher Jedeszko, Kamiar Moin, Stefanie R. Mullins, Mary B. Olive, Deborah Rudy, and Bonnie F. Sloane
Clinical & Experimental Metastasis, 2009, Volume 26, Number 4, Page 299

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