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Updated: May 8, 2026

Mast Cells in the Microenvironment of Hepatocellular Carcinoma Confer Favorable Prognosis: A Retrospective Study using QuPath Image Analysis Software
07:32

Mast Cells in the Microenvironment of Hepatocellular Carcinoma Confer Favorable Prognosis: A Retrospective Study using QuPath Image Analysis Software

Published on: April 12, 2024

Inactivation of Smad4 is a prognostic factor in intrahepatic cholangiocarcinoma

Xue-qiang Yan1, Wei Zhang, Bi-xiang Zhang

  • 1Wuhan Medical & Health Center For Women and Children, Wuhan, Hubei, China.

Chinese Medical Journal
|August 29, 2013
PubMed
Abstract

Insights

Smad4 protein expression is significantly reduced in intrahepatic cholangiocarcinoma (ICC), correlating with higher tumor grade and metastasis. Loss of Smad4 indicates a poorer prognosis for ICC patients.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gastroenterology

Background:

  • Smad4 is a tumor suppressor involved in TGF-β signaling, frequently mutated in various cancers.
  • Its role in intrahepatic cholangiocarcinoma (ICC) pathogenesis requires further elucidation.

Purpose of the Study:

  • To investigate Smad4 protein expression in ICC tissues.
  • To correlate Smad4 expression with clinicopathological features and patient prognosis.

Main Methods:

  • Immunohistochemistry was employed to analyze Smad4 expression in 49 ICC and 9 normal liver tissue specimens.
  • Smad4 expression levels were compared against histological grade, pTNM stage, and metastatic status.

Main Results:

  • Smad4 expression was significantly lower in ICC (44.9%) compared to normal liver tissues (100%).
  • Loss of Smad4 expression correlated with poor histological differentiation (P=0.018) and advanced pTNM stages (P=0.000).
  • Smad4 negativity was prevalent in metastatic ICC, including lymph node (72%) and intrahepatic metastasis (73.3%).

Conclusions:

  • Smad4 expression is associated with histological grade, clinical stage, and metastasis in ICC.
  • Reduced Smad4 detection may serve as a biomarker for assessing ICC malignancy and predicting patient outcomes.

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