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Restin protein expression in non-small cell lung cancer
Frank Aboubakar Nana1,2, Virginie Lamberts3, Delphine Hoton4
1Division of Pulmonology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.
Thoracic Cancer
|June 27, 2023
Summary
Restin is frequently expressed in non-small cell lung cancer (NSCLC) tumors. However, this study found that restin expression levels do not predict patient outcomes or disease progression in NSCLC.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Restin, a member of the melanoma-associated antigen (MAGE) superfamily, has shown potential as a tumor suppressor in preclinical studies.
- Its expression is known to be altered in various cancers, necessitating further investigation.
Purpose of the Study:
- To investigate the expression patterns of restin in non-small cell lung cancer (NSCLC).
- To determine the prognostic significance of restin expression in NSCLC patients.
Main Methods:
- Immunohistochemistry was employed to analyze restin expression in 113 NSCLC tissue microarrays.
- Restin expression was quantified using an H-score and averaged across triplicates (Haverage-score).
- Correlations between restin Haverage-scores and clinical/pathological characteristics, as well as patient outcomes, were assessed.
Main Results:
- Restin expression was observed in the cytoplasm with nuclear enhancement in 99.1% of NSCLC specimens.
- The majority of tumors exhibited moderate (42.5%) to strong (43.4%) restin expression.
- No significant correlation was found between restin Haverage-scores and NSCLC histological subtype, disease stage, progression-free survival, or overall survival.
Conclusions:
- Restin is frequently expressed at moderate to strong levels in most NSCLC tumors.
- Restin expression does not appear to hold prognostic value for patients diagnosed with NSCLC.
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