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Integrin αE(CD103)β7 in Epithelial Cancer.

Johanna C Hoffmann1, Michael P Schön1,2

  • 1Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, 37075 Göttingen, Germany.

Cancers
|December 24, 2021
PubMed
Summary
This summary is machine-generated.

CD8+ T cells, crucial for anti-tumor immunity, include a subpopulation expressing the αE(CD103)β7 integrin. This receptor

Keywords:
CD103E-cadherinTRM cellsbasal cell carcinomaimmunosurveillanceimmunotherapyintegrinskin cancersquamous cell carcinomaαE(CD103)β7

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Area of Science:

  • Immunology
  • Oncology
  • Cell Biology

Background:

  • Tumor interactions with innate and adaptive immune systems are complex, impacting treatment outcomes.
  • CD8+ T cells are key mediators of anti-tumor effects, with therapies targeting their activity.
  • A specific subpopulation of CD8+ T cells expresses the αE(CD103)β7 integrin, implicated in immune cell recruitment and retention within tumors.

Purpose of the Study:

  • To investigate the distribution and potential role of αE(CD103)β7 in epithelial skin tumors.
  • To explore the significance of αE(CD103)β7 expression in the tumor microenvironment and its association with prognosis.

Main Methods:

  • Analysis of αE(CD103)β7 expression in basal cell carcinomas and squamous cell carcinomas.
  • Review of existing literature on the function and implications of αE(CD103)β7 in solid tumors.

Main Results:

  • αE(CD103)β7 expression is scarce in basal cell carcinomas.
  • αE(CD103)β7 is significantly more abundant in squamous cell carcinomas, exhibiting heterogeneous distribution.
  • The αE(CD103)β7/E-cadherin interaction enhances T cell binding and anti-tumor responses in TGF-rich environments.

Conclusions:

  • The αE(CD103)β7 integrin plays a role in T cell-mediated anti-tumor immunity, particularly in squamous cell carcinomas.
  • Further research into αE(CD103)β7 is warranted to understand its full implications in solid tumor pathophysiology, therapy, and prognosis.