title: [Establishment and characterization of 2 cell lines of squamous epithelial carcinoma of the mouth floor and tongue].
abstract: OBJECTIVE
  The cultivation of squamous cell carcinoma cells of the upper aerodigestive tract is more difficult compared to other malignancies because of microbial contamination. The establishment of new squamous cell carcinoma cell lines is absolutely necessary to further characterize this tumor entity.
  
  
  METHODS
  Two squamous cell carcinoma cell lines of the floor of the mouth and the tongue were established from tumor biopsies. They were examined by light and electron microscopy. Furthermore immunocytochemical and DNA cytofluorometric studies were performed. The growth features were tested in a tumor-stem cell assay and through transplantation in thymusless nude mice.
  
  
  RESULTS
  The epithelial character of the cells was determined morphologically, immunocytochemically, and immunologically. Both cell lines shaved an aneuploid DNA Index of 1.92 for the tongue carcinoma cell line (HCTK-1) and 1.77 for the floor of the mouth cell line (HCFMK-1). The plating efficiency was 0.008 and 0.01%. Cell differentiation in the original tumor and the nude mice tumor was identical. HCTK-1 is in the 25th passage and HCFMK-1 in the 42nd.
  
  
  CONCLUSIONS
  The two new squamous cell carcinoma cell lines HCFMK-1 and HCTK-1 may serve as a basis for various in vitro investigations and may help to further characterize squamous cell carcinomas of the upper aerodigestive tract.
authors.affiliation: Univ.-Klinik für Hals-, Nasen-, Ohrenheilkunde, Kopf- und Halschirurgie der Universität Kiel.
authors.forename: T
authors.initials: T
authors.lastname: Görögh
authors.forename: B M
authors.initials: BM
authors.lastname: Lippert
authors.forename: S
authors.initials: S
authors.lastname: Gottschlich
authors.forename: B
authors.initials: B
authors.lastname: Folz
authors.forename: J A
authors.initials: JA
authors.lastname: Werner
mesh_terms: D000368:Aged; D000818:Animals; D014408:Biomarkers, Tumor / Q000032:analysis; D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D002455:Cell Division / Q000502:physiology; D002460:Cell Line; D004273:DNA, Neoplasm / Q000032:analysis; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D008297:Male; D051379:Mice; D008819:Mice, Nude; D008854:Microscopy, Electron; D008875:Middle Aged; D009060:Mouth Floor / Q000473:pathology; D009062:Mouth Neoplasms / Q000473:pathology*; D009367:Neoplasm Staging; D009368:Neoplasm Transplantation; D014062:Tongue Neoplasms / Q000473:pathology*; D014407:Tumor Cells, Cultured / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D004273:DNA, Neoplasm
vernacular_title: Etablierung und Charakterisierung zweier Zellinien von Plattenepithelkarzinomen des Mundbodens und der Zunge.