Volume 113, Issue 1 pp. 55-61
Research Article

Comprehensive multiplatform biomarker analysis of 350 hepatocellular carcinomas identifies potential novel therapeutic options

Celina Ang MD

Corresponding Author

Celina Ang MD

Department of Medicine, Hematology/Oncology, Icahn School of Medicine at Mount Sinai, New York, New York

Correspondence to: Celina Ang, MD, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1079, New York, NY 10029. Fax: +1-646 537 9639. E-mail: [email protected]

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John T. Miura MD

John T. Miura MD

Division of Surgical Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin

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T. Clark Gamblin MD, MS

T. Clark Gamblin MD, MS

Division of Surgical Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin

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Ruth He MD, PhD

Ruth He MD, PhD

Department of Medicine, Hematology/Oncology, Georgetown University Medical Center, Washington, DC

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Joanne Xiu PhD

Joanne Xiu PhD

Caris Life Sciences, Phoenix, Arizona

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Sherri Z. Millis MS, PhD

Sherri Z. Millis MS, PhD

Caris Life Sciences, Phoenix, Arizona

Sherri Z. Millis's current affiliation is Advanced Individual Medicine, LLC.Search for more papers by this author
Zoran Gatalica MD, DSc

Zoran Gatalica MD, DSc

Caris Life Sciences, Phoenix, Arizona

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Sandeep K. Reddy MD

Sandeep K. Reddy MD

Caris Life Sciences, Phoenix, Arizona

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Nelson S. Yee MD, PhD

Nelson S. Yee MD, PhD

Department of Medicine, Hematology/Oncology, Penn State Hershey Cancer Institute, Hershey, Pennsylvania

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Ghassan K. Abou-Alfa MD

Ghassan K. Abou-Alfa MD

Memorial Sloan Kettering Cancer Center, New York, New York

Department of Medicine, Hematology/Oncology, Weill Cornell Medical College, New York, New York

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First published: 10 December 2015
Citations: 23
Disclosures: Advisory board and travel support from Caris Life Sciences; Employed by Caris Life Sciences; Data support for this study provided by Caris Life Sciences.

Abstract

Background and Objectives

Effective therapies for hepatocellular carcinoma (HCC) are limited. Molecular profiling of HCC was performed to identify novel therapeutic targets.

Methods

350 HCC samples were evaluated using a multiplatform profiling service (Caris Life Sciences, Phoenix, AZ), including gene sequencing, amplification, and protein expression.

Results

EGFR, TOPO1, PD-1, TOP2A, SPARC, and c-Met were overexpressed in 25–83% of samples. Decreased expression of RRM1,TS, PTEN, and MGMT occurred in 31–82% of samples. TP53 was mutated in 30%, CTNNB1 in 20%, and BRCA2 in 18%; other gene mutation rates were <5%. TP53-mutated tumors showed significantly higher TOPO2A (90% vs. 38%, P < 0.0001) and TS (56% vs. 29%, P = 0.0139) expression. CTNNB1-mutated tumors had significantly higher AR (56% vs. 21%, P = 0.0017), SPARC (61% vs. 29%, P = 0.0135), PDL1 (29% vs. 0%, P = 0.0256) expression, and BRCA2 mutations (50% vs. 6%, P = 0.0458). Metastases exhibited significantly higher infiltration by PD-1+ lymphocytes (79% vs. 50%, P = 0.047) and TS (31% vs. 14%, P < 0.0003) than primary HCC.

Conclusions

Multiplatform profiling reveals molecular heterogeneity in HCC and identifies potential therapies including tyrosine kinase, PI3 kinase, or PARP inhibitors for molecular subtypes. Chemotherapy may benefit some tumors. CTNNB1-mutated tumors may respond to multi-target inhibition. These limited and preliminary data require clinical validation. J. Surg. Oncol. 2016;113:55–61. © 2015 Wiley Periodicals, Inc.

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