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Updated: Oct 1, 2026

Rat Mesentery Angiogenesis Assay
18:30

Rat Mesentery Angiogenesis Assay

Published on: June 18, 2011

Leukocyte function-associated antigen-1-dependent adhesion of rat ascites hepatoma AH66F to mesentery-derived

M Nomura1, H Yamamoto, N Sugiura

  • 1Research Laboratory for Development of Medicine, Faculty of Pharmaceutical Sciences, Hokuriku University.

Japanese Journal of Cancer Research : Gann
|January 1, 1996
PubMed

Insights

Rat hepatoma cells show distinct adhesion properties. AH66F cells, expressing leukocyte function-associated antigen-1 (LFA-1) and intercellular adhesion molecule-1 (ICAM-1), adhere more strongly to mesothelial cells than AH130 cells, which express only ICAM-1.

Area of Science:

  • Cell Biology
  • Oncology
  • Immunology

Background:

  • Mesothelial cells form a crucial barrier in the peritoneum.
  • Cancer cell adhesion plays a role in metastasis.
  • Leukocyte adhesion molecules are typically found on immune cells.

Purpose of the Study:

  • To investigate the adhesion mechanisms of rat ascites hepatoma cells (AH66F and AH130) to mesentery-derived mesothelial cells (M-cells).
  • To determine the role of specific adhesion molecules, including leukocyte function-associated antigen-1 (LFA-1) and intercellular adhesion molecule-1 (ICAM-1), in this interaction.
  • To identify novel adhesion pathways in non-leukocyte cancer cells.

Main Methods:

  • Comparing the adhesion of AH66F and AH130 cells to M-cells in vitro.
  • Analyzing the expression of LFA-1 and ICAM-1 on hepatoma cells using cell surface markers.
  • Utilizing monoclonal antibodies (mAbs) against LFA-1 and ICAM-1 to block adhesion.
  • Assessing the expression of typical leukocyte markers (CD45, T cell receptor, CD11b/c) on hepatoma cells.

Main Results:

  • AH66F cells exhibited significantly higher adhesion to M-cells compared to AH130 cells.
  • AH66F cells expressed both LFA-1 and ICAM-1, while AH130 cells expressed only ICAM-1.
  • Blocking LFA-1 and/or ICAM-1 with mAbs reduced AH66F cell adhesion to levels similar to AH130 cells.
  • AH66F cells did not express standard leukocyte markers, indicating a non-leukocyte LFA-1-dependent adhesion.

Conclusions:

  • A portion of AH66F cell adhesion to M-cells is mediated by the LFA-1/ICAM-1 pathway.
  • This study demonstrates LFA-1-dependent adhesion in non-leukocyte cancer cells for the first time.
  • The unique adhesion characteristics of AH66F cells may contribute to their malignant properties and potential for peritoneal spread.

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