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. 1989 Sep;60(3):397–400. doi: 10.1038/bjc.1989.293

Plasminogen activators in endoscopic biopsies as indicators of gastrointestinal cancer: comparison with resection specimens.

P A de Bruin 1, H W Verspaget 1, G Griffioen 1, J H Verheijen 1, G Dooijewaard 1, C B Lamers 1
PMCID: PMC2247195  PMID: 2506920

Abstract

In resection tissue samples of colorectal carcinomas, the concentration of urokinase-type plasminogen activator (u-Pa) was found to be significantly higher than in the normal parent mucosal tissue, while there was less tissue-type plasminogen activator (t-PA). u-PA and t-PA were also determined in endoscopic biopsies of colonic and gastric carcinomas, and the results were compared with those of the ultimate resection samples of the same patients, and with the histological evaluation of adjacent biopsies. The ratio of u-PA/t-PA antigen in the biopsies was found to represent a good discriminator between normal and malignant tissue. Nearly all (90%) tumour biopsies had a higher PA antigen ratio than that of the normal tissue biopsies. This discrimination based upon PA antigen measurements in biopsies was similarly efficient in the subsequent resection samples, and showed a good agreement with the histological evaluation. Thus, PA antigen measurements in endoscopic biopsies can be used to detect gastrointestinal malignancy.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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