Detection of c-mos proto-oncogene expression in human cells

C C Li1, E Chen, C D O'Connell

  • 1Biological Carcinogenesis and Development Program, Inc./DynCorp, Frederick, Maryland 21702.

Oncogene
|June 1, 1993
PubMed

Insights

The c-mos proto-oncogene protein is expressed in human somatic cells, including neuroblastoma and cervical carcinoma cell lines. This ubiquitous expression suggests a fundamental role for c-mos in cellular functions.

Area of Science:

  • Molecular Biology
  • Oncology
  • Cell Biology

Background:

  • The human c-mos proto-oncogene has been studied for over a decade.
  • Little is known about its protein product and expression in somatic cells.

Purpose of the Study:

  • To detect and characterize c-mos protein expression in human somatic cells.
  • To investigate the role of the c-mos proto-oncogene.

Main Methods:

  • Generated c-mos-specific antisera.
  • Utilized Western blot, immunoprecipitation, Northern blot, and RT-PCR analyses.
  • Examined human neuroblastoma and cervical carcinoma cell lines.

Main Results:

  • Detected c-mos protein (p37 major, p40/p35 minor forms) in SK-N-BE2 cells.
  • Identified 3.5- and 1.7-kb c-mos RNA messages.
  • Confirmed ubiquitous c-mos RNA detection across all examined human samples.
  • Showed c-mos protein expression in cervical carcinoma cell lines.

Conclusions:

  • c-mos protein is expressed in human somatic cells.
  • Ubiquitous low-level expression suggests a fundamental role for the c-mos proto-oncogene.

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