title: Separation and cultivation of laryngeal carcinoma-associated fibroblasts and biological influence on a laryngeal carcinoma cell line.
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.
authors: Department of Otolaryngology-Head and Neck Surgery, Fudan University Affiliated Eye, Ear, Nose and Throat Hospital, Shanghai, China.
authors: Huai-Dong
authors: HD
authors: Du
authors: Chun-Ping
authors: CP
authors: Wu
authors: Liang
authors: L
authors: Zhou
authors: Jie
authors: J
authors: Tian
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000502:physiology; D049109:Cell Proliferation; D002469:Cell Separation / Q000379:methods*; D002470:Cell Survival; D017077:Culture Media, Conditioned; D005347:Fibroblasts / Q000166:cytology* / Q000502:physiology; D005455:Fluorescent Antibody Technique; D006801:Humans; D007150:Immunohistochemistry; D007822:Laryngeal Neoplasms / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D012016:Reference Values; D012494:Sampling Studies; D059016:Tumor Microenvironment
chemical_list: D017077:Culture Media, Conditioned