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APC expression in normal human tissues

C A Midgley1, S White, R Howitt

  • 1Department of Biochemistry, University of Dundee, U.K.

The Journal of Pathology
|April 1, 1997
PubMed
Summary
This summary is machine-generated.

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The tumor suppressor Adenomatous Polyposis Coli (APC) protein is found in many normal tissues, not just the colon. Its distribution suggests roles in cell adhesion and differentiation.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Cancer Research

Background:

  • The Adenomatous Polyposis Coli (APC) gene encodes a large protein with incompletely understood functions.
  • APC is a known tumor suppressor gene, particularly implicated in colorectal cancer.

Purpose of the Study:

  • To develop novel antibodies for APC protein localization.
  • To investigate the expression and distribution of APC protein in various normal epithelial tissues.

Main Methods:

  • Development of two new antisera targeting amino- and carboxy-terminal epitopes of APC.
  • Immunohistochemical analysis of APC protein in archival paraffin-embedded tissue sections.

Main Results:

  • The APC protein is expressed in a diverse range of normal epithelial tissues.

Related Experiment Videos

  • APC protein distribution often correlates with post-replicative cells.
  • Localization patterns include diffuse cytoplasmic staining, apical accumulation, and lateral membrane localization.

    • Conclusions:

    • APC protein has significant roles in multiple tissues beyond the colorectal epithelium.
    • APC localization is consistent with involvement in adherens junction signaling.
    • APC may play complex roles in terminally differentiating cells.