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  • Title: Use of Cytokeratin-19 Concentration to Assess Early Recurrence and Prognosis of Hepatitis B Virus-Related Hepatocellular Carcinoma following Radical Resection in Patients with a Low Serum Alpha-Fetoprotein Concentration.
    Author: Wang ZS, Guo WD, Wu LQ, Yi X, Geng C, Li YJ, Yao RY.
    Journal: PLoS One; 2015; 10(11):e0142727. PubMed ID: 26588210.
    Abstract:
    Cytokeratin 19 (CK-19) is a prognostic indicator of recurrence and metastasis of hepatocellular carcinoma (HCC) following radical resection. To investigate the role of CK-19 in assessment of early recurrence and prognosis in patients with hepatitis B virus (HBV)-related HCC following radical resection. In total, 235 patients with HBV-related HCC (age, 15-82 years; mean age, 54 ± 10 years) undergoing radical resection were screened for inclusion from January 2005 to December 2010. Malignant tissues and adjacent non-malignant tissues were sampled during surgery, and CK-19 and Ki-67 expression was determined by tissue microarray and immunohistochemistry. CK-19 mRNA levels in 30 randomly selected frozen HCC specimens were examined by reverse transcription polymerase chain reaction from January 2011 to June 2011. Correlations of CK-19 and Ki-67 expression with tumor recurrence, metastasis, disease-free survival (DFS), and overall survival (OS) were analyzed. Elevated CK-19 expression was correlated with early recurrence (P = 0.001), shorter DFS (P = 0.001), and reduced OS (P = 0.010). CK-19 expression was correlated with the Ki-67 index (P = 0.037), histological differentiation (P = 0.016), focal number (P = 0.044), and blood vessel tumor embolism (P = 0.002). Patients with metastasis within 1 year exhibited stronger CK-19 expression than did patients without metastasis (P < 0.05). Furthermore, early recurrence was associated with elevated CK-19 mRNA levels (χ2 = 5.761, P = 0.016).When confirmed by a low alpha-fetoprotein concentration (<400 μg/L), CK-19 expression in surgical biopsy specimens taken from patients with HCC during radical resection is an additional valuable indicator of early recurrence, distant metastasis, and poor prognosis in HBV-positive patients.
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