Suppression of Tumorigenicity in Breast Cancer Cells by the Microfilament Protein Profilin 1-Reference-Cited by-同舟云学术

Suppression of Tumorigenicity in Breast Cancer Cells by the Microfilament Protein Profilin 1

Published:2000-05-08 Issue:10 Volume:191 Page:1675-1686
ISSN:0022-1007
Container-title:Journal of Experimental Medicine
language:en
Short-container-title:

Author:

Janke Jürgen¹,Schlüter Kathrin²,Jandrig Burkhard¹,Theile Michael¹,Kölble Konrad³⁴,Arnold Wolfgang⁵,Grinstein Edgar¹,Schwartz Arnfried¹,Estevéz-Schwarz Lope⁴,Schlag Peter M.⁴,Jockusch Brigitte M.²,Scherneck Siegfried¹

Affiliation:

1. Department of Medical Genetics, Max-Delbrück-Center for Molecular Medicine, 13092 Berlin-Buch, Germany

2. Department of Cell Biology, Zoological Institute, Technical University of Braunschweig, 38106 Braunschweig, Germany

3. Institute of Pathology, Charité Hospital, Humboldt University, 10117 Berlin, Germany

4. Clinic of Surgery and Surgical Oncology, Robert Roessle Hospital, 13122 Berlin-Buch, Germany

5. HepaVec GmbH, 13125 Berlin-Buch, Germany

Abstract

Differential display screening was used to reveal differential gene expression between the tumorigenic breast cancer cell line CAL51 and nontumorigenic microcell hybrids obtained after transfer of human chromosome 17 into CAL51. The human profilin 1 (PFN1) gene was found overexpressed in the microcell hybrid clones compared with the parental line, which displayed a low profilin 1 level. A comparison between several different tumorigenic breast cancer cell lines with nontumorigenic lines showed consistently lower profilin 1 levels in the tumor cells. Transfection of PFN1 cDNA into CAL51 cells raised the profilin 1 level, had a prominent effect on cell growth, cytoskeletal organization and spreading, and suppressed tumorigenicity of the stable, PFN1-overexpressing cell clones in nude mice. Immunohistochemical analysis revealed intermediate and low levels of profilin 1 in different human breast cancers. These results suggest profilin 1 as a suppressor of the tumorigenic phenotype of breast cancer cells.

Publisher

Rockefeller University Press

Subject

Immunology,Immunology and Allergy

Link

http://rupress.org/jem/article-pdf/191/10/1675/1124010/991899.pdf

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