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Published in: International Journal of Colorectal Disease 10/2007

01-10-2007 | Original Article

Transforming growth factor beta 1 and metalloproteinase-9 overexpression in colorectal cancer (CC) and adenoma

Authors: Piotr Daniel, Malgorzata Wagrowska-Danilewicz, Marian Danilewicz, Olga Stasikowska, Ewa Malecka-Panas

Published in: International Journal of Colorectal Disease | Issue 10/2007

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Abstract

Background and aims

Although the role of transforming growth factor beta (TGFbeta) 1 and metalloproteinase-9 (MMP-9) is well documented in colorectal cancer (CC), there is a little evidence supporting its role in early carcinogenesis. The aim of the study was to determine the pattern of immunohistochemical expression of TGFbeta1, MMP-9, and Ki-67 in CC and adenomatous polyps.

Patient/methods

The study group comprised 50 patients with colorectal polyps and 33 patients with CC. Endoscopically removed polyps and CC biopsies had been evaluated with histopatologic examination and immunohistochemistry. The biopsies from 30 healthy objects served as a control group. For all antibodies labeling indices (LI) had been calculated.

Results

Among 62 adenomas, 33 high-grade dysplasia (HGD) and 29 low-grade dysplasia (LGD) had been detected. Mean TGFbeta1, MMP-9, and Ki-67 LI in CC were significantly higher (p < 0.01, 0.01, and 0.01, respectively) than in HGD polyps. Mean TGFbeta1, MMP-9, and Ki-67 LI in HGD polyps were significantly higher than in LGD polyps (p < 0.01, 0.01, and 0.01, respectively). There had been no statistical difference in TGFbeta1, MMP-9, and Ki-67 LI between LGD and the control group (p > 0.05, 0.05, and 0.05, respectively). There was a positive correlation between TGFbeta1 and MMP-9 (r = 0.898), Ki-67 and MMP-9 (r = 0.938), and TGFbeta1 and Ki-67 (r = 0.913). We did not observe any correlation between TGFbeta1, MMP-9, Ki-67 LI and the clinical parameters evaluated.

Conclusion

The increased expression of TGFbeta1, MMP-9 observed in colorectal adenomas seems to be related to the grade of dysplasia. We assume that overexpression of TGFbeta1, MMP-9 represent an early event in colorectal carcinogenesis and may possibly have the prognostic value.
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Metadata
Title
Transforming growth factor beta 1 and metalloproteinase-9 overexpression in colorectal cancer (CC) and adenoma
Authors
Piotr Daniel
Malgorzata Wagrowska-Danilewicz
Marian Danilewicz
Olga Stasikowska
Ewa Malecka-Panas
Publication date
01-10-2007
Publisher
Springer-Verlag
Published in
International Journal of Colorectal Disease / Issue 10/2007
Print ISSN: 0179-1958
Electronic ISSN: 1432-1262
DOI
https://doi.org/10.1007/s00384-007-0296-9

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