JNK1 activation predicts the prognostic outcome of the human hepatocellular carcinoma

Qingshan Chang1, Jianguo Chen, Kevin J Beezhold

  • 1Graduate Center for Toxicology, University of Kentucky, Lexington, KY40536, USA. qchan2@email.uky.edu

Molecular Cancer
|August 19, 2009
PubMed

Insights

Hepatocellular carcinoma (HCC) with high JNK1 activation may originate from hepatic progenitor cells, showing poor prognosis and metastasis. JNK1 activation status could serve as a novel biomarker for HCC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Hepatology

Background:

  • Hepatocellular carcinoma (HCC) is a prevalent cancer with a poor prognosis.
  • Current molecular classification of HCC is not well-established.

Purpose of the Study:

  • To identify HCC molecular signatures based on JNK1 activation status.
  • To explore the potential of JNK1 as a prognostic biomarker in HCC.

Main Methods:

  • Gene expression profiling of 31 HCC specimens and matched noncancerous liver tissue.
  • Sub-grouping HCC based on high JNK1 (H-JNK1) and low JNK1 (L-JNK1) activation.
  • Analysis of signature genes, biomarker expression, and survival data.

Main Results:

  • Two distinct gene sets identified for H-JNK1 and L-JNK1 HCC.
  • H-JNK1 HCC showed overlap with hepatoblastoma signatures and over-expressed hepatic progenitor cell biomarkers (AFP, KRT19, etc.).
  • H-JNK1 HCC exhibited genes associated with metastasis and recurrence, with down-regulated normal liver function genes and impaired patient survival.

Conclusions:

  • H-JNK1 HCC may arise from hepatic progenitor cells, correlating with a poorer prognosis.
  • JNK1 activation status in HCC tissue represents a potential new biomarker for prognosis.
  • JNK1 status may offer a target for novel HCC therapeutic strategies.
Abstract

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