血清蛋白glypican-3、survivin在肝細(xì)胞癌中的表達(dá)水平及其臨床意義
[Abstract]:Hepatocellular carcinoma (HCC) is one of the most common malignant tumors in the world. The survival rate of the patients with hepatocellular carcinoma is low, the rate of recurrence is high, and most of the patients are in the middle and late stage at the time of the visit, and the overall 5-year survival rate is only 3-5% and only 30-40% of the patients with the HCC are suitable for operation at the time of diagnosis, Therefore, early screening and diagnosis are of great significance for improving the survival rate and the clinical prognosis of patients with hepatocellular carcinoma. Survivin is a member of the smallest molecule in the apoptosis-inhibiting protein family. In recent years, it has been found to be a high-level expression in a variety of tumor tissues such as liver cancer, gastric cancer, pancreatic cancer, and prostate cancer. The recurrence of the tumor is related to the survival of the tumor. The expression of survivin in serum of patients with hepatocellular carcinoma is only 2 articles, and the conclusion is not clear. Phospholipid phytate-3 (Glycian3, GPC3) is a member of the glycosaminoglycan family (GPC1-6) in the glyoxaparin glycoprotein, anchored to the outer membrane of the cell by the combination of the C-terminal with the glycolipid-base alcohol, and its 358-position arginine is dissociated from the 359-position serine, The N-terminal enters the blood, known as the soluble GPC3 protein. It is found that GPC3 plays an important role in regulating cell proliferation and differentiation, and is highly expressed in fetal liver and liver cancer tissues, and has little expression in normal adult tissues. There are many literature reports on the expression of GPC3 in the serum of hepatocellular carcinoma, yet its conclusions are not consistent. Therefore, the expression of survivin and GPC3 in the serum of patients with hepatocellular carcinoma is studied in this paper. The diagnostic value of survivin and GPC3 in the serum of hepatocellular carcinoma is discussed, and the relationship between the clinical and pathological features such as the pathological grade and TNM stage of the liver cancer is analyzed and the relation with the prognosis is discussed. Objective:1. The expression level of survivin in the serum of hepatocellular carcinoma was analyzed by two ELISA kits. The feasibility of the detection of survivin in the diagnosis of hepatocellular carcinoma and the screening of a valuable diagnostic kit were also discussed. To detect the level of GPC3 expression in serum of patients with large-sample hepatocellular carcinoma, the diagnostic accuracy of HCC was compared and the diagnostic value of AFP was compared with that of conventional HCC. The expression of survivin protein in the serum of hepatocellular carcinoma, liver cirrhosis, chronic hepatitis B and normal adult was measured by ELISA, and the correlation and difference of the two test cases were compared. The content of GPC3 protein in 890 serum samples (including 283 cases of hepatocellular carcinoma,267 cases of liver cirrhosis,162 cases of chronic hepatitis B,162 cases of normal control and 16 cases of atypical hyperplasia) was detected by using the Human GPC3 RD Duboet kit, and the ROC curve was drawn to analyze its diagnostic accuracy for hepatocellular carcinoma. The relationship between the pathological grade, TNM stage and other clinicopathological characteristics of the liver cancer was analyzed and the relation with the prognosis was discussed. Results:1. The positive rate of survivin was 8.75% (7/80), the positive rate of survivin was 5% (1/20), and the positive rate of survivin was 22.5% (18/80) in the same serum samples and 25% (5/20). The results showed that there was no significant difference in the level of survivin expression in the HCC group and the normal control group. The correlation coefficient r 2 of the two ELISA test kits for the same sample was 0.0064, P = 0.481, and the positive rate of the abnova kit was higher than that of RD (P = 0.002). There is a difference in the results of the detection of both the RD and the abnova kits. The expression levels of serum GPC3 in hepatocellular carcinoma, liver cirrhosis, chronic hepatitis B, normal control and atypical hyperplasia were 0 ng/ ml (range = 0-14.0 ng/ ml),0 ng/ ml (range = 0-0 ng/ ml),0 ng/ ml (range = 0-12.5 ng/ ml),0 ng/ ml (range = 0-1.7 ng/ ml), and 0 ng/ ml (range = 0-4.3 ng/ ml). Serum GPC3 was significantly higher in hepatocellular carcinoma (P = 0.033) and in patients with liver cirrhosis (P = 0.001) than in normal control, but there was no significant difference (P = 0.097). The ROC curve showed that the sensitivity of serum GPC3 in the diagnosis of hepatocellular carcinoma was 39.9%, the specificity was 60.6%, and the area under the curve was 0.519. The best cut off value was 0.002 ng/ ml, and there was no significant correlation between the level of serum GPC3 expression and AFP (P0.05). Conclusion:1. The concentration of survivin was significantly lower than that of the two kits. The two kits were not suitable for detecting the level of survivin expression in HCC.
【學(xué)位授予單位】:天津醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:R735.7
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