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High expression of tumour-associated trypsin inhibitor correlates with liver metastasis and poor prognosis in colorectal cancer
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2009 (English)In: British Journal of Cancer, ISSN 0007-0920, E-ISSN 1532-1827, Vol. 100, no 10, 1540-1548 p.Article in journal (Refereed) Published
Abstract [en]

Increased expression of tumour-associated trypsin inhibitor (TATI) in tumour tissue and/or serum has been associated with poor survival in various cancer forms. Moreover, a proinvasive function of TATI has been shown in colon cancer cell lines. In this study, we have examined the prognostic significance of tumour-specific TATI expression in colorectal cancer, assessed by immunohistochemistry (IHC) on tissue microarrays (TMAs) with tumour specimens from two independent patient cohorts. Kaplan-Meier analysis and Cox proportional hazards modelling were used to estimate time to recurrence, disease-free survival and overall survival. In both cohorts, a high (>50% of tumour cells) TATI expression was an independent predictor of a significantly shorter overall survival. In cohort II, in multivariate analysis including age, gender, disease stage, differentiation grade, vascular invasion and carcinoembryonal antigen (CEA), high TATI expression was associated with a significantly decreased overall survival (HR=1.82; 95% CI=1.19-2.79) and disease-free survival (HR=1.56; 95% CI=1.05-2.32) in curatively treated patients. Moreover, there was an increased risk for liver metastasis in both cohorts that remained significant in multivariate analysis in cohort II (HR=2.85; 95% CI=1.43-5.66). In conclusion, high TATI expression is associated with liver metastasis and is an independent predictor of poor prognosis in patients with colorectal cancer.

Place, publisher, year, edition, pages
2009. Vol. 100, no 10, 1540-1548 p.
Keyword [en]
colorectal cancer, TATI, prognosis, liver metastasis
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-122475DOI: 10.1038/sj.bjc.6605047ISI: 000266025100005PubMedID: 19384300OAI: oai:DiVA.org:uu-122475DiVA: diva2:310222
Available from: 2010-04-13 Created: 2010-04-13 Last updated: 2017-12-12Bibliographically approved

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Pontén, Fredrik

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Department of Genetics and PathologyDepartment of Oncology, Radiology and Clinical ImmunologyColorectal Surgery
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