Genomic and Transcriptomic Profiling of Combined Hepatocellular and Intrahepatic Cholangiocarcinoma Reveals Distinct Molecular Subtypes

  • Ruidong Xue
  • , Lu Chen
  • , Chong Zhang
  • , Masashi Fujita
  • , Ruoyan Li
  • , Shu Mei Yan
  • , Choon Kiat Ong
  • , Xiwen Liao
  • , Qiang Gao
  • , Shota Sasagawa
  • , Yanmeng Li
  • , Jincheng Wang
  • , Hua Guo
  • , Qi Tao Huang
  • , Qian Zhong
  • , Jing Tan
  • , Lisha Qi
  • , Wenchen Gong
  • , Zhixian Hong
  • , Meng Li
  • Jingmin Zhao, Tao Peng, Yinying Lu, Kiat Hon Tony Lim, Arnoud Boot, Atushi Ono, Kazuaki Chayama, Zemin Zhang, Steve George Rozen, Bin Tean Teh, Xin Wei Wang, Hidewaki Nakagawa*, Mu Sheng Zeng, Fan Bai, Ning Zhang
*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

233 Scopus citations

Abstract

We performed genomic and transcriptomic sequencing of 133 combined hepatocellular and intrahepatic cholangiocarcinoma (cHCC-ICC) cases, including separate, combined, and mixed subtypes. Integrative comparison of cHCC-ICC with hepatocellular carcinoma and intrahepatic cholangiocarcinoma revealed that combined and mixed type cHCC-ICCs are distinct subtypes with different clinical and molecular features. Integrating laser microdissection, cancer cell fraction analysis, and single nucleus sequencing, we revealed both mono- and multiclonal origins in the separate type cHCC-ICCs, whereas combined and mixed type cHCC-ICCs were all monoclonal origin. Notably, cHCC-ICCs showed significantly higher expression of Nestin, suggesting Nestin may serve as a biomarker for diagnosing cHCC-ICC. Our results provide important biological and clinical insights into cHCC-ICC. Xue et al. perform genomic and transcriptomic analyses of combined hepatocellular and intrahepatic cholangiocarcinoma (cHCC-ICC). They show that combined and mixed types of cHCC-ICC have different clinical and molecular features and that Nestin expression may be a diagnostic biomarker for cHCC-ICC.

Original languageEnglish
Pages (from-to)932-947.e8
JournalCancer Cell
Volume35
Issue number6
DOIs
StatePublished - 10 06 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Inc.

Keywords

  • Allen and Lisa
  • bilinear differentiation
  • clonal origin
  • intratumor heterogeneity
  • liver cancer
  • metastatic route
  • molecular subtype
  • Nestin
  • phenotypic transition
  • single nucleus sequencing

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