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  • Title: Heterogeneous cytogenetic abnormalities in small cell lung cancer cell lines.
    Author: Morstyn G, Brown J, Novak U, Gardner J, Bishop J, Garson M.
    Journal: Cancer Res; 1987 Jun 15; 47(12):3322-7. PubMed ID: 3034409.
    Abstract:
    Ten cell lines were established from different biopsies from nine patients with small cell lung cancer (SCLC). These were established from metastases in the marrow (7), breast (1), pleural fluid (1), and spinal cord (1) and had been in culture for periods varying from 1 to 11 months. All cell lines exhibited typical cytological features of SCLC, and produced neuron specific enolase. All lines examined (5) contained dense core granules and were tumorigenic when injected intracranially into nude mice. None of the six cell lines tested had an amplified oncogene (c-myc or n-myc) previously reported to be amplified in SCLC. Detailed chromosome analyses were undertaken and showed that a structural abnormality of chromosome 3(p11p23) was a frequent (6 of 10) but not invariable finding. Our study and one other indicate that there is not a unique chromosome abnormality present in all cases of SCLC, although loss of chromosome 13 and structural abnormalities of chromosome 3 were frequently found. A feature of these SCLC cell lines established from metastatic deposits was the complexity of the karyotypes due to numerical and structural chromosomal abnormalities.
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