Expression of the proto-oncogenes c-met and c-kit and their ligands, hepatocyte growth factor/scatter factor and stem cell factor, in SCLC cell lines and xenografts
1993

Expression of c-met and c-kit in Small Cell Lung Cancer

Sample size: 25 publication Evidence: moderate

Author Information

Author(s): K. Rygaard, T. Nakamura, M. Spang-Thomsen

Primary Institution: University Institute of Pathological Anatomy, Copenhagen, Denmark

Hypothesis

Are the proto-oncogenes c-met and c-kit expressed in small cell lung cancer (SCLC) cell lines and xenografts?

Conclusion

The study found that c-met and c-kit are frequently expressed in SCLC, suggesting they may play important roles in the disease.

Supporting Evidence

  • 22 out of 25 SCLC tumours expressed c-met mRNA.
  • Coexpression of c-met and c-kit mRNA was found in 20 tumours.
  • SCF mRNA was expressed in 19 of the examined tumours.

Takeaway

This study looked at cancer cells from patients and found that two important genes, c-met and c-kit, are often turned on in these cells, which might help them grow.

Methodology

The expression of c-met and c-kit mRNA and protein was examined in 25 SCLC cell lines and xenografts using Northern blotting and Western blotting.

Limitations

The study only examined a limited number of SCLC tumours and may not represent all cases.

Participant Demographics

The study included 25 SCLC tumours established from 20 patients.

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