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  11. Overexpression Of Egfr In Esophageal Squamous Cell Carcinomas - A New Biological Target In Cancer Therapy

Overexpression of EGFR in esophageal squamous cell carcinomas - A new biological target in cancer therapy

K Kavin Chakravarthy1, V Pavithra1, Leena D Joseph1

  • 1Department of Pathology, Sri Ramachandra Medical College and Research Institute, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, Tamil Nadu, India.

Journal of Cancer Research and Therapeutics
|February 22, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Epidermal growth factor receptor (EGFR) is overexpressed in most esophageal squamous cell carcinoma (ESCC) cases, particularly high-grade tumors. This finding supports EGFR as a potential diagnostic and therapeutic target for ESCC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Esophageal squamous cell carcinoma (ESCC) is a prevalent cancer in Asia with a poor prognosis.
  • Low 5-year survival rates highlight the need for novel therapeutic strategies.
  • Epidermal growth factor receptor (EGFR) is a potential molecular target for ESCC treatment.

Purpose of the Study:

  • To investigate the overexpression of EGFR in different grades of ESCC.
  • To evaluate the role of EGFR as a diagnostic and theranostic marker in ESCC.

Main Methods:

  • Retrospective analysis of 50 ESCC tissue samples (2014-2019).
  • Immunohistochemistry staining to detect EGFR expression.
  • Scoring of membrane staining intensity; overexpression defined as scores > 2+.

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Main Results:

  • EGFR overexpression was observed in 84% of ESCC specimens.
  • High-grade ESCCs showed significantly higher rates of EGFR overexpression compared to low-grade ESCCs (P < 0.05).

Conclusions:

  • Targeting EGFR with anti-EGFR drugs may inhibit ESCC growth and spread, especially in high-grade tumors.
  • EGFR serves as a promising theranostic marker for ESCC.
  • Further clinical trials with anti-EGFR monoclonal antibodies are warranted for immunotherapy development.