Separation and cultivation of laryngeal carcinoma-associated fibroblasts and biological influence on a laryngeal carcinoma cell line

Acta Otolaryngol. 2013 Jul;133(7):755-60. doi: 10.3109/00016489.2013.766925. Epub 2013 Feb 28.

Abstract

Conclusions: Carcinoma-associated fibroblasts (CAFs) can influence the biological characteristics of a laryngeal carcinoma cell line. These results could lay the foundation for further studies on the role of CAFs in the laryngeal tumor-host microenvironment.

Objective: CAFs are important contributors to the microenvironment in determining the fate of tumors. The aim of this study was to separate, culture, and identify laryngeal CAFs and investigate their biological influence on the laryngeal carcinoma cell line.

Methods: The primary CAFs and normal fibroblasts (NFs) of the larynx were obtained by tissue culture. The cells were verified according to immunohistochemical and immunofluorescence staining of certain proteins. Conditioned medium (CM) from CAFs and NFs was obtained. Functional assays were performed to test the influence of each CM on laryngeal carcinoma cell lines.

Results: Third-passage purified laryngeal CAFs and NFs were successfully attained. The CAFs showed positive staining for vimentin, α-smooth muscle actin (α-SMA), and fibroblast activation protein (FAP). The migration ability of the CAFs increased significantly compared with that of NFs (p < 0.05). CM from CAFs (compared with CM from NFs) stimulated proliferation, migration, and invasion to a greater extent.

Publication types

  • Comparative Study

MeSH terms

  • Carcinoma, Squamous Cell / pathology*
  • Carcinoma, Squamous Cell / physiopathology
  • Carcinoma, Squamous Cell / surgery
  • Cell Line, Tumor
  • Cell Movement / physiology
  • Cell Proliferation*
  • Cell Separation / methods*
  • Cell Survival
  • Culture Media, Conditioned
  • Fibroblasts / cytology*
  • Fibroblasts / physiology
  • Fluorescent Antibody Technique
  • Humans
  • Immunohistochemistry
  • Laryngeal Neoplasms / pathology*
  • Laryngeal Neoplasms / physiopathology
  • Laryngeal Neoplasms / surgery
  • Reference Values
  • Sampling Studies
  • Tumor Microenvironment

Substances

  • Culture Media, Conditioned