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Expression of receptor for advanced glycation end products (RAGE) in human biliary cancer cells

Kenro Hirata1, Moriatsu Takada, Yasuyuki Suzuki

  • 1Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kobe University, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.

Hepato-Gastroenterology
|October 24, 2003
PubMed
Abstract

Insights

Receptor for advanced glycation end products (RAGE) expression correlates with biliary cancer cell invasion. Targeting RAGE may offer a strategy to control tumor cell migration and metastasis in biliary cancers.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Amphoterin, interacting with the receptor for advanced glycation end products (RAGE), regulates tumor cell invasion and migration.
  • RAGE is a cell surface molecule belonging to the immunoglobulin superfamily.

Purpose of the Study:

  • To investigate the role of RAGE in the invasion potential of human biliary cancer cells.
  • To determine the correlation between RAGE expression levels and the invasive capabilities of biliary cancer cell lines.

Main Methods:

  • Utilized three human biliary cancer cell lines: SK-ChA-1, TGBC-1, and NOZC-1.
  • Assessed cell invasion using the Matrigel invasion assay.
  • Quantified RAGE protein expression via Western blotting.

Main Results:

  • SK-ChA-1 and NOZC-1 cells exhibited high invasion potential (40.3 +/- 3.27 and 48.7 +/- 4.8, respectively).
  • TGBC-1 cells demonstrated low invasion potential (25.7 +/- 2.8).
  • Strong RAGE expression was observed in high-invasion SK-ChA-1 and NOZC-1 cells, while TGBC-1 cells showed faint RAGE expression.

Conclusions:

  • RAGE expression levels are consistent with the observed invasion abilities of human biliary cancer cells.
  • Modulating RAGE activity presents a potential therapeutic target for controlling biliary cancer invasion and metastasis.

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