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Cellular adhesion molecules in urologic malignancies

M B Cohen1, T L Griebling, C A Ahaghotu

  • 1Department of Pathology, University of Iowa, Iowa City 52245, USA.

American Journal of Clinical Pathology
|January 1, 1997
PubMed
Summary
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Cell adhesion molecules (CAMs) are crucial for cell interactions and have been linked to cancer spread. Research highlights their role in genitourinary tract tumors, with specific molecules like E-cadherin and CD44 showing associations with metastasis.

Area of Science:

  • Oncology
  • Cell Biology
  • Molecular Biology

Background:

  • Cell adhesion molecules (CAMs) mediate cell-cell and cell-extracellular matrix interactions, playing a role in cancer progression.
  • CAMs like cadherins and CD44 are implicated in invasion and metastasis across various human malignancies, including genitourinary cancers.
  • While E-cadherin loss is linked to dedifferentiation and metastasis in prostate and bladder cancers, and CD44 variants are associated with metastasis in other cancers, specific isoforms' roles in urologic neoplasm metastasis remain unclear.

Purpose of the Study:

  • To review the role of cell adhesion molecules (CAMs) in the context of urologic malignancies.
  • To discuss the involvement of specific CAMs, including cadherins, CD44, and integrins, in the invasion and metastasis of genitourinary tract tumors.
  • To highlight the significance of CAMs in regulating intracellular signaling pathways relevant to human malignancy.

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Main Methods:

  • Literature review and synthesis of existing research on cell adhesion molecules in urologic cancers.
  • Analysis of studies focusing on cadherins, CD44 isoforms, and integrins in prostate cancer and bladder transitional cell neoplasia.
  • Examination of the broader roles of selectins and immunoglobulin superfamily molecules in urologic malignancies.

Main Results:

  • Loss of E-cadherin expression is associated with dedifferentiation, invasion, and metastasis in prostate and bladder cancers.
  • CD44, particularly its variants, is linked to invasion and metastasis in urologic malignancies, though specific isoforms' roles are not fully elucidated.
  • Altered integrin expression is observed in malignant prostatic epithelium, and these molecules are extensively studied in prostate cancer.

Conclusions:

  • Cell adhesion molecules are fundamental to biological processes and significantly influence human malignancy, including urogenital tract cancers.
  • CAMs regulate intracellular signaling events critical to the development and progression of cancers like prostate and bladder tumors.
  • Further investigation into specific CAMs and their isoforms may reveal novel therapeutic targets for urologic malignancies.