Downregulation of HLA Class I molecules in the tumour is associated with a poor prognosis in patients with oesophageal squamous cell carcinoma
2008

HLA Class I Molecules and Oesophageal Cancer Prognosis

Sample size: 70 publication Evidence: high

Author Information

Author(s): Mizukami Y, Kono K, Maruyama T, Watanabe M, Kawaguchi Y, Kamimura K, Fujii H

Primary Institution: University of Yamanashi

Hypothesis

The downregulation of HLA class I molecules in oesophageal squamous cell carcinoma is associated with poor prognosis.

Conclusion

Downregulation of HLA class I expression in primary and metastatic lesions of oesophageal squamous cell carcinoma is linked to poorer patient survival.

Supporting Evidence

  • 43% of primary ESCC cases showed downregulation of HLA class I expression.
  • 90% of lymph node metastases exhibited downregulated HLA class I expression.
  • Patients with preserved HLA class I expression had better survival rates.

Takeaway

If the cancer cells have less of a certain protein called HLA class I, it means the patients might not live as long.

Methodology

The study used immunohistochemistry to analyze HLA class I expression in primary and metastatic lesions of 70 patients with oesophageal squamous cell carcinoma.

Participant Demographics

{"mean_age":64.9,"gender_ratio":"66 male : 4 female"}

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1038/sj.bjc.6604715

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