Original Works

Acta Neuropathologica

, Volume 53, Issue 1, pp 21-28

Characterization of an established human malignant glioma cell line: LN-18

  • A. C. DiserensAffiliated withNeurosurgical Service, CHUV
  • , N. de TriboletAffiliated withNeurosurgical Service, CHUV
  • , A. Martin-AchardAffiliated withNeurosurgical Service, CHUV
  • , A. C. GaideAffiliated withDepartment of Medical Genetics, CHUV
  • , J. F. SchneggAffiliated withNeurosurgical Service, CHUV
  • , S. CarrelAffiliated withUnit of Human Cancer Immunology, Lausanne Branch, Ludwig Institute for Cancer Research

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A human malignant glioma cell line, LN-18, has been established in monolayer culture and subcultured for more than 115 passages. LN-18 cells grow in vitro as bipolar or stellate cells with pleomorphic nuclei, have a doubling time of about 72 h and a plating efficiency of 3%. The glial nature of these cells has been assessed by ultrastructural examination. The synthesis of glial fibrillary acidic and S-100 proteins could not be demonstrated, although the initial biopsy tissue and the early cultures were positive for the former. The presence of Ia-like antigens on the surface of these cells was demonstrated using allo and xeno antisera. LN-18 cells were also shown to synthesize large quantities of fibronectin. The injection of LN-18 cells into nude mice induced the formation of solid tumor masses that could be retransplanted every 3 weeks and showed a morphology comparable to that of the initial biopsy. Karyotype analysis revealed the presence of three marker chromosomes, constantly present before and after hetero-transplantation.

Key words

Malignant glioma Cell line LN-18 Human Surface antigens Chromosomes