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• W2602152301 abstract "e22040 Background: Introduction of independent prognostic markers may play a significant role in future treatment of early stage colorectal cancer (CRC). CEA is still the only recommended (ASCO and EGTM) serological marker in CRC. However, Tissue Inhibitor of Metallo Proteinases-1 (TIMP-1), which is a glycoprotein that acts as an inhibitor of most of the active matrix metalloproteinases, has previously been shown to carry independent prognostic information in patients with primary CRC. The purpose of the present study was to assess the combination of preoperative serum CEA and plasma TIMP-1as prognostic markers in patients undergoing resection for primary CRC. Methods: In the present prospective study serum and plasma samples were collected before surgery from 422 patients with primary CRC stage I-III. CEA was determined in serum by a commercial assay and TIMP-1 was determined in plasma using a thoroughly validated, in-house ELISA. Time to recurrence or death of CRC was registered and the association to serum CEA and plasma TIMP-1 levels were studied in a Cox multivariate model including age, gender, disease stage and tumor location. Hazard ratios and 95% confidence intervals (HR (95%CI)) for disease free survival (DFS) were calculated. Results: An event was recorded in 186 patients, 75 had local recurrence, 103 had a distant metastases (28 of these patients had both local recurrence and distant metastases) and 36 died from their cancer without a registered recurrence. Scoring CEA and TIMP-1 as continuous variables on a logarithmic scale (base 2), both serum CEA and plasma TIMP-1 were statistically significant in a multivariable analysis with HR=1.12 (1.03–1.21) and HR=1.51 (1.12–2.04), respectively. Additional calculations of low CEA plus low TIMP-1, high CEA plus low TIMP-1, low CEA plus high TIMP-1 and high CEA plus high TIMP-1 showed that high plasma TIMP-1 levels carried prominent information of poor prognosis independent of CEA. Conclusions: Preoperative serum CEA and plasma TIMP-1 levels were independent predictors of disease free survival for patients with primary CRC. Combination of the two proteins showed that TIMP-1 was a prominent predictor of poor DFS independent of CEA. [Table: see text]" @default.
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• W2602152301 date "2009-05-20" @default.
• W2602152301 modified "2023-09-26" @default.
• W2602152301 title "Correlation of plasma TIMP-1 levels and disease-free survival in primary colorectal cancer independent of serum CEA levels" @default.
• W2602152301 doi "https://doi.org/10.1200/jco.2009.27.15_suppl.e22040" @default.
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