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Updated: Aug 24, 2026

Development of Compendium for Esophageal Squamous Cell Carcinoma
Published on: April 12, 2024
NY-ESO-1 expression and its serum immunoreactivity in esophageal cancer
Argun Akcakanat1, Tatsuo Kanda, Yu Koyama
1Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, 951-8510 Niigata, Japan.
Purpose:
NY-ESO-1, a member of the cancer/testis antigen (CTA) family, elicits humoral and cellular immune responses in patients with advanced cancer. Unresectable or metastatic esophageal carcinoma patients do not benefit from the present multimodality treatment regimens in terms of survival. The objectives of this study were to analyze the antibody response to NY-ESO-1 antigen in patients with esophageal cancer and to determine the potential of NY-ESO-1 for use in tumor-specific immunotherapy.
Methods:
Serum from 69 patients with esophageal cancer was investigated for antibody production against NY-ESO-1 by Western blot analysis. Also analyzed by immunohistochemistry were 56 tissue samples from these patients for NY-ESO-1 protein expression.
Results:
NY-ESO-1 protein expression was found in 18 of 56 (32%) esophageal carcinomas. Serum immunoreactivity specific for NY-ESO-1 was found in 9 patients (13%) of whom 8 were in the advanced stage (stages III and IV). There was no relationship between clinicopathologic features and serum immunoreactivity for NY-ESO-1. NY-ESO-1 protein expression was detected in three of five antibody-positive patients whose tissue was available for analysis. Survival analysis showed no significant difference between antibody-positive and antibody-negative patient groups.
Conclusions:
A humoral immune response to NY-ESO-1 antigen was established in patients with advanced esophageal cancer. NY-ESO-1 is a good candidate for vaccine-based immunotherapy for advanced esophageal carcinoma.
Insights
Advanced esophageal cancer patients show an immune response to NY-ESO-1 antigen. This cancer/testis antigen (CTA) is a promising target for developing new immunotherapies against esophageal carcinoma.
Area of Science:
- Oncology
- Immunology
- Cancer Research
Background:
- Esophageal carcinoma presents a significant survival challenge, especially in advanced stages.
- Current multimodality treatments offer limited survival benefits for unresectable or metastatic esophageal carcinoma.
- Cancer/testis antigens (CTAs) like NY-ESO-1 are known to induce immune responses in cancer patients.
Purpose of the Study:
- To investigate the antibody response against NY-ESO-1 in esophageal cancer patients.
- To assess NY-ESO-1 protein expression in esophageal tumors.
- To evaluate NY-ESO-1's potential as a target for tumor-specific immunotherapy.
Main Methods:
- Western blot analysis of serum from 69 esophageal cancer patients for anti-NY-ESO-1 antibodies.
- Immunohistochemistry on 56 esophageal tumor tissue samples to detect NY-ESO-1 protein expression.
- Correlation analysis between immune response, protein expression, and clinicopathologic features.
Main Results:
- NY-ESO-1 protein was expressed in 32% of esophageal carcinomas.
- Antibodies specific to NY-ESO-1 were detected in 13% of patients, predominantly in advanced stages (III/IV).
- No significant correlation was found between clinicopathologic features and NY-ESO-1 immunoreactivity or survival outcomes.
Conclusions:
- A humoral immune response to NY-ESO-1 is present in patients with advanced esophageal cancer.
- NY-ESO-1 demonstrates potential as a target antigen for vaccine-based immunotherapy in esophageal carcinoma.
- Further research into NY-ESO-1 targeted therapies may improve outcomes for advanced esophageal cancer.
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