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Objective@#To investigate the expression of carcinoembryonic antigen-related cell adhesion molecule 19 (CEACAM19) in colorectal cancer tissues, and evaluate the clinical pathological characters and prognostic significance.@*Methods@#Ninety-eight patients with colorectal cancer in Beijing Huairou Hospital from July 2015 to July 2018 were selected. The expression level of CEACAM19 protein in primary colorectal cancer and corresponding non-tumor tissues (>2 cm) was detected by immunohistochemistry. The correlation between clinical pathological characters and CEACAM19 expression level was analyzed. The prognostic influencing factors were analyze by univariate and multivariate Cox regression methods. Survival curve was drawn by Kaplan-Meier method.@*Results@#The high expression rate of CEACAM19 in colorectal cancer tissues was significantly higher than that in adjacent non-tumor tissues: 69.4% (68/98) vs. 16.3% (16/98), and there was statistical difference (χ2 = 45.060; P<0.01). Expression of CEACAM19 in colorectal cancer tissues was significantly associated with TNM stage (P<0.05), and was not associated with age, gender, tumor diameter, histological differentiation, tumor location, lymph node stage and invasion depth (P>0.05). Univariate Cox regression analysis result showed that lymph node stage, TNM stage and CEACAM19 expression were influencing factors of overall survival in patients with colorectal cancer (P<0.05 or <0.01), and the TNM stage and CEACAM19 expression were influencing factors of disease-free survival in patients with colorectal cancer (P<0.01). Multivariate Cox regression analysis result showed that TNM stage increased and CEACAM19 high expression were independent risk factors of overall survival (HR = 2.628 and 0.199, 95% CI 1.147 to 6.021 and 0.045 to 0.868, P = 0.022 and 0.032) and disease-free survival (HR = 2.009 and 0.303, 95% CI 0.965 to 4.185 and 0.101 to 0.911, P = 0.048 and 0.034) in patients with colorectal cancer. Survival curve analysis result showed that the median overall survival and disease-free survival in CEACAM19 low expression patients were significantly longer than CEACAM19 high expression patients (47.9 months vs. 27.8 months and 43.2 months vs. 26.3 months, P<0.01); the median overall survival and disease-free survival in TNM Ⅰ to Ⅱ stage were significantly longer than TNM Ⅲ stage patients (43.9 months vs. 24.2 months and 39.3 months vs. 23.7 months, P<0.01).@*Conclusions@#The CEACAM19 in colorectal cancer tissues is high expression, and the CEACAM19 expression level can be used as biomarker for prediction the prognosis of colorectal cancer.
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Objective To investigate the expression of carcinoembryonic antigen-related cell adhesion molecule 19 (CEACAM19) in colorectal cancer tissues,and evaluate the clinical pathological characters and prognostic significance.Methods Ninety-eight patients with colorectal cancer in Beijing Huairou Hospital from July 2015 to July 2018 were selected.The expression level of CEACAM 19 protein in primary colorectal cancer and corresponding non-tumor tissues (＞2 cm) was detected by immunohistochemistry.The correlation between clinical pathological characters and CEACAM19 expression level was analyzed.The prognostic influencing factors were analyze by univariate and multivariate Cox regression methods.Survival curve was drawn by Kaplan-Meier method.Results The high expression rate of CEACAM19 in colorectal cancer tissues was significantly higher than that in adjacent non-tumor tissues:69.4％ (68/98) vs.16.3％ (16/98),and there was statistical difference (x2 =45.060;P ＜ 0.01).Expression of CEACAM19 in colorectal cancer tissues was significantly associated with TNM stage (P＜ 0.05),and was not associated with age,gender,tumor diameter,histological differentiation,tumor location,lymph node stage and invasion depth (P ＞ 0.05).Univariate Cox regression analysis result showed that lymph node stage,TNM stage and CEACAM19 expression were influencing factors of overall survival in patients with colorectal cancer (P ＜ 0.05 or ＜ 0.01),and the TNM stage and CEACAM19 expression were influencing factors of disease-free survival in patients with colorectal cancer (P ＜ 0.01).Multivariate Cox regression analysis result showed that TNM stage increased and CEACAM19 high expression were independent risk factors of overall survival (HR =2.628 and 0.199,95％ CI 1.147 to 6.021 and 0.045 to 0.868,P =0.022 and 0.032) and disease-free survival (HR =2.009 and 0.303,95％ CI 0.965 to 4.185 and 0.101 to 0.911,P =0.048 and 0.034) in patients with colorectal cancer.Survival curve analysis result showed that the median overall survival and disease-free survival in CEACAM19 low expression patients were significantly longer than CEACAM19 high expression patients (47.9 months vs.27.8 months and 43.2 months vs.26.3 months,P ＜ 0.01);the median overall survival and disease-free survival in TNM Ⅰ to Ⅱ stage were significantly longer than TNM Ⅲ stage patients (43.9 months vs.24.2 months and 39.3 months vs.23.7 months,P ＜ 0.01).Conclusions The CEACAM19 in colorectal cancer tissues is high expression,and the CEACAM19 expression level can be used as biomarker for prediction the prognosis of colorectal cancer.
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<p><b>OBJECTIVE</b>To identify risk factors associated with overall survival (OS) for patients undergoing primary hepatic resection for metastatic colorectal cancer.</p><p><b>METHODS</b>The clinical and pathological data were prospectively collected from 191 consecutive patients undergoing primary hepatic resection for colorectal liver metastases from January 2000 to August 2012. The survival curve was drawn by Kaplan-Meier method, and the survival rates were analyzed by Log-rank test. Parametric survival analysis was used to identify predictors of cancer-specific survival.</p><p><b>RESULTS</b>The 5-year overall survival were 38.4% and median survival time was 33 months; 5-year disease-free survival were 23.6%, and the median disease-free survival time was 10.0 months. 5-years survival rate was significantly lower in patients with synchronal metastasis than in patients with heterochronia metastasis (27.4% vs. 51.8%, χ(2) = 6.527, P < 0.05). In overall survival, univariate analysis found 7 risk factors: gender (χ(2) = 5.219), N stage of the primary tumor (χ(2) = 5.591), bilobar metastases (χ(2) = 4.269), number of metastases ≥ 2 (χ(2) = 5.051), disease-free interval ≥ 6 months (χ(2) = 6.527), carcinoembyonic antigen level ≥ 30 µg/L (χ(2) = 4.454), and extrahepatic disease (χ(2) = 5.158). On multivariate analysis, 3 risk factors were found to be independent predictors of poor survival: N stage of the primary tumor (RR = 2.198, 95%CI: 1.146-4.216), disease-free interval ≥ 6 months (RR = 1.840, 95%CI: 1.139-2.973), carcinoembyonic antigen level ≥ 30 µg/L(RR = 1.854, 95%CI: 1.056-3.255).</p><p><b>CONCLUSIONS</b>Resection of liver metastases provides good long-term cancer-specific survival benefit. N stage of the primary tumor, disease-free interval, carcinoembyonic antigen level are important prognostic factors for colorectal liver metastasis.</p>