Up-regulation of MET but not neural cell adhesion molecule expression by the PAX3-FKHR fusion protein in alveolar rhabdomyosarcoma

Cancer Res. 1998 Aug 15;58(16):3542-6.

Abstract

The 2;13 chromosomal translocation in alveolar rhabdomyosarcoma generates the chimeric protein PAX3-FKHR, which is a powerful transcriptional activator. We hypothesize that PAX3-FKHR regulates downstream effector genes involved in rhabdomyosarcoma tumorigenesis. We evaluated alterations in expression of MET and neural cell adhesion molecule that were proposed previously as downstream targets of wild-type PAX3. We used a myogenic tumor cell culture system and rhabdomyosarcoma tumor specimens to assess candidate gene expression in relationship to various PAX3-FKHR expression levels. We demonstrate that the expression of MET, but not neural cell adhesion molecule, correlates significantly with PAX3-FKHR expression. These findings indicate that MET, which encodes a receptor involved in growth and motility signaling, is a downstream target of PAX3-FKHR in alveolar rhabdomyosarcoma.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Cells, Cultured
  • DNA-Binding Proteins / genetics
  • DNA-Binding Proteins / physiology*
  • Humans
  • Neoplasm Proteins / metabolism*
  • Neural Cell Adhesion Molecules / metabolism*
  • Proto-Oncogene Proteins c-met / metabolism*
  • Recombinant Fusion Proteins / genetics
  • Recombinant Fusion Proteins / physiology*
  • Rhabdomyosarcoma, Alveolar / metabolism*
  • Transcriptional Activation*
  • Transfection
  • Tumor Cells, Cultured
  • Up-Regulation

Substances

  • DNA-Binding Proteins
  • Neoplasm Proteins
  • Neural Cell Adhesion Molecules
  • Recombinant Fusion Proteins
  • Proto-Oncogene Proteins c-met