JOURNAL OF PRACTICAL HEPATOLOGY ›› 2015, Vol. 18 ›› Issue (6): 633-637.doi: 10.3969/j.issn.1672-5069.2015.06.017

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Expression of cytokeratin-19 in cancerous tissues of patients with hepatitis B-associated primary clear cell carcinoma of liver

Che Ruiwen, Feng Shuai, Feng Jiliang, et al.   

  1. Department of Pathology,You-an Hospital, Affiliated to Capital Medical University,Beijing 100069
  • Received:2015-03-11 Online:2015-11-20 Published:2016-02-04

Abstract: Objective To investigate the expression of cytokeratin-19(CK19) in primary liver clear cell carcinoma(PCCCL) and explore its implication for prognosis of patients with PCCCL. Methods The liver cancerous tissues from 76 individuals with HBV-associated PCCCL from 2006 to 2014 in Beijing You`An Hospital affiliated to Capital Medical University were retrospectively reviewed. The expressions of CK19,P53,CD34, glypican-3 (GPC-3),HepPar-1 were detected by immunohistochemistry staining. Kaplan-Meier survival curves and Wilcoxon test were used to assess the prognosis between CK19-positive and negative patients. Results 9 (11.84%) out of 76 patients with PCCCL were found CK19 positive in tumor tissues;When tumors were greater than 3 cm,a distant metastasis were 60.0%(3/5) in CK19 positive cases,which was much higher than 8.7%(2/23,P<0.05)in CK19 negative cases;The patients with CK19 negative had longer (60 weeks) survival times than in patients with CK19 positive(31 weeks,P<0.05) as showed by the Kaplan-Meier survival curves and Wilcoxon tests. Conclusion PCCCL consists of a heterogeneous origin,and it may transformed from CK19 positive hepatic progenitor cells in the process of differentiation and maturation. The expression of CK19 in PCCCL is closely associated with the poor prognosis of patients with PCCCL.

Key words: Primary clear cell carcinoma of liver, Cytokeratin-19, Prognosis