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Herszényi, László and Farinati, Fabio and Cardin, Romilda and István, Gábor and Molnár, László D and Hritz, István and De Paoli, Massimo and Plebani, Mario and Tulassay, Zsolt (2008) Tumor marker utility and prognostic relevance of cathepsin B, cathepsin L, urokinase-type plasminogen activator, plasminogen activator inhibitor type-1, CEA and CA 19-9 in colorectal cancer. [Online journal papers]

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Per gentile concessione di: http://www.biomedcentral.com/1471-2407/8/194

Abstract (english)

Background

Cathepsin B and L (CATB, CATL), urokinase-type plasminogen activator (uPA) and its inhibitor PAI-1 play an important role in colorectal cancer invasion. The tumor marker utility and prognostic relevance of these proteases have not been evaluated in the same experimental setting and compared with that of CEA and CA-19-9.

Methods

Protease, CEA and CA 19-9 serum or plasma levels were determined in 56 patients with colorectal cancer, 25 patients with ulcerative colitis, 26 patients with colorectal adenomas and 35 tumor-free control patients. Protease, CEA, CA 19-9 levels have been determined by ELISA and electrochemiluminescence immunoassay, respectively; their sensitivity, specificity, diagnostic accuracy have been calculated and correlated with clinicopathological staging.

Results

The protease antigen levels were significantly higher in colorectal cancer compared with other groups. Sensitivity of PAI-1 (94%), CATB (82%), uPA (69%), CATL (41%) were higher than those of CEA or CA 19-9 (30% and 18%, respectively). PAI-1, CATB and uPA demonstrated a better accuracy than CEA or CA 19-9. A combination of PAI-1 with CATB or uPA exhibited the highest sensitivity value (98%). High CATB, PAI-1, CEA and CA 19-9 levels correlated with advanced Dukes stages. CATB (P = 0.0004), CATL (P = 0.02), PAI-1 (P = 0.01) and CA 19-9 (P = 0.004) had a significant prognostic impact. PAI-1 (P = 0.001), CATB (P = 0.04) and CA 19-9 (P = 0.02) proved as independent prognostic variables.

Conclusion

At the time of clinical detection proteases are more sensitive indicators for colorectal cancer than the commonly used tumor markers. Determinations of CATB, CATL and PAI-1 have a major prognostic impact in patients with colorectal cancer.


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EPrint type:Online journal papers
Anno di Pubblicazione:2008
Key Words:tumor marker, urokinase-type plasminogen activator
Settori scientifico-disciplinari MIUR:Area 06 - Scienze mediche > MED/06 Oncologia medica
Struttura di riferimento:Dipartimenti > pre 2012 - Dipartimento di Scienze Chirurgiche Gastroenterologiche "Pier Giuseppe Cevese"
Dipartimenti > pre 2012 - Dipartimento di Scienze Medico Diagnostiche e Terapie Speciali
Codice ID:1160
Depositato il:09 Dec 2008
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