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Structural basis for epidermal growth factor receptor function.

J J Hsuan1, G Panayotou, M D Waterfield

  • 1Ludwig Institute for Cancer Research, London, U.K.

Progress in Growth Factor Research
|January 1, 1989
PubMed
Summary
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The epidermal growth factor (EGF) receptor is crucial in cell growth and cancer. Understanding its structure, function, and regulation is vital due to its roles in development, wound repair, and cellular transformation.

Area of Science:

  • Molecular Biology
  • Cellular Biology
  • Oncology

Background:

  • The epidermal growth factor (EGF) receptor is extensively studied due to its role in growth factors and its homology to the v-erbB oncogene.
  • Aberrant overexpression of EGF receptors and c-erbB2 is observed in various human tumors, including squamous cell carcinomas, glial tumors, and mammary carcinomas.

Purpose of the Study:

  • To review the structural properties of the EGF receptor.
  • To elucidate the relationship between EGF receptor structure, function, and regulation.

Main Methods:

  • Literature review of studies on EGF receptor structure and function.
  • Analysis of homology between EGF receptor and v-erbB oncogene.
  • Examination of ligand binding (EGF, TGF alpha, vaccinia virus growth factor).

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Main Results:

  • EGF receptor shares homology with the v-erbB oncogene, a truncated receptor implicated in cancer.
  • Overexpression of EGF receptors and c-erbB2 is linked to specific cancers.
  • Transforming growth factor alpha (TGF alpha) and vaccinia virus growth factor are additional ligands for the EGF receptor.

Conclusions:

  • The structural characteristics of the EGF receptor are intrinsically linked to its diverse functions and regulatory mechanisms.
  • Understanding EGF receptor is critical given its roles in embryogenesis, wound repair, and potential involvement in cellular transformation.