Article

Virchows Archiv B

, Volume 63, Issue 1, pp 335-343

First online:

Characterization of four new gastric cancer cell lines

  • H. Peter VollmersAffiliated withInstitut für Pathologie
  • , Konrad StulleAffiliated withInstitut für Pathologie
  • , Jobst DämmrichAffiliated withInstitut für Pathologie
  • , Martin PfaffAffiliated withInstitut für Pathologie
  • , Th. PapadopoulosAffiliated withInstitut für Pathologie
  • , Christoph BetzAffiliated withInstitut für Pathologie
  • , Katharina SaalAffiliated withInstitut für Pathologie
  • , Hans-Konrad Müller-HermelinkAffiliated withInstitut für Pathologie

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Summary

Four well differentiated gastric adenocarcinoma cell lines from German patients have been established from primary tumors (St 23132, St 3051) and lymph node metastases (St 2474, St 2957). The tumor cells were isolated by enzymatic or mechanical treatment. All four lines grew as solid tumors in nude mice and formed colonies in soft agar. The doubling time of the cells in culture was 25–32 h. Further characteristics of the lines were a considerable chromosomal aneuploidy, (the chromosomal numbers varying from 30–109 with many numerical and structural abnormalities), a stable keratin expression (Ck 8, 18, 19), the expression and secretion of CEA and CA-19-9 and the overexpression of c-myc. The four stomach cancer cell lines described here are not only a useful addition to the small number of existing lines, but also represent ideal tools for studying tumorigenicity of human stomach cancers in vitro and in vivo.

Key words

Gastric carcinoma cell lines Tumorigenicity Keratin expression c-myc