Biliary phenotype of hepatocellular carcinoma after preoperative transcatheter arterial chemoembolization

Yunosuke Nishihara, Shinichi Aishima, Yousuke Kuroda, Tomohiro Iguchi, Kenichi Taguchi, Yoshiki Asayama, Akinobu Taketomi, Naoko Kinukawa, Hiroshi Honda, Masazumi Tsuneyoshi

研究成果: Contribution to journalArticle査読

16 被引用数 (Scopus)

抄録

Background and Aim: Transcatheter arterial chemoembolization (TACE) is now the mainstay of treatment for non-curative hepatocellular carcinoma (HCC), and hoped to have chemotherapeutic and ischemic effects; however, the histopathological changes of HCC caused by TACE have not been sufficiently discussed so far. We aimed to assess the morphological and immunohistochemical features of HCC treated with TACE by immunostaining cytokeratin (CK) 7, CK14, CK19 and vimentin, and to correlate these data with observed clinicopathological characteristics. Methods: Eighty cases of surgically resected HCC with preoperative TACE and 146 cases of HCC resected without TACE as a control were analyzed. Results: The incidences of intrahepatic metastasis, poorly differentiated histology, multinucleated giant cells, mitotic figures and cytoplasmic inclusion bodies in the TACE group were significantly higher than those in the non-TACE group. The TACE group showed reactivity for CK7 in 56.3% (45/80) of patients, CK14 in 12.5% (10/80), CK19 in 23.8% (19/80) and vimentin in 6.3% (5/80) of patients. CK19 expression in the TACE group was significantly higher than in the non-TACE group (P = 0.0423). There was no correlation between immunoreactivity and the number of times TACE was carried out, but the expression of CK19 and vimentin in the massive necrotic group was higher than that in the mild necrotic group (P = 0.0197, P = 0.0229, respectively). Only TACE was an independent determinant of CK19 expression in all cases by multivariate analysis. Conclusions: These results suggest that preoperative TACE may have an impact on the biliary phenotype of HCC. Some post-therapeutic HCC patients might develop HCC with a biliary phenotype indicating more aggressive malignancies.

本文言語英語
ページ(範囲)1860-1868
ページ数9
ジャーナルJournal of Gastroenterology and Hepatology (Australia)
23
12
DOI
出版ステータス出版済み - 12 2008

All Science Journal Classification (ASJC) codes

  • Hepatology
  • Gastroenterology

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