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 language | English |
---|---|
Pages (from-to) | 932-947.e8 |
Journal | Cancer Cell |
Volume | 35 |
Issue number | 6 |
DOIs | |
State | Published - 10 06 2019 |
Externally published | Yes |
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