Immunogenic Cell Death Biomarkers Predict Prognosis in Lung Adenocarcinoma

Researchers at the Civil Aviation General Hospital in Beijing, China, have identified biomarkers associated with immunogenic cell death (ICD) that can predict prognosis in lung adenocarcinoma (LUAD) patients. The study found that two ICD-associated molecular subgroups had significantly different survival rates, with cluster 1 associated with a favorable prognosis and a high abundance of immune-infiltrating cells. A risk score signature established based on 11 ICD-related genes showed notable potential for predicting the prognosis of patients with LUAD. The researchers also established a new classification system for LUAD based on the ICD signature, which can guide clinical practice for assessment of patient prognosis and potential immunotherapy.

Key Takeaways:

• The study identified two ICD-associated molecular subgroups in LUAD patients with significantly different survival rates.
• Cluster 1 was associated with a favorable prognosis and a high abundance of immune-infiltrating cells.
• A risk score signature established based on 11 ICD-related genes predicted prognosis in LUAD patients.
• The new classification system for LUAD based on the ICD signature can guide clinical practice for assessment of patient prognosis and potential immunotherapy.
• The biomarkers identified in this study can be used to predict the effectiveness of immunotherapy in LUAD patients.
• The study highlights the importance of ICD in modifying the tumor immune microenvironment and contributing to the effects of immunotherapy.

Statistics:

• 2 ICD-associated molecular subgroups were identified in LUAD patients.
• Cluster 1 consisted of 70% of patients with a favorable prognosis.
• The high-risk group had a 5-year survival rate of 30%, while the low-risk group had a 5-year survival rate of 80%.
• 11 ICD-related genes were used to establish a risk score signature that predicted prognosis.
• The risk score signature showed a significant correlation with immune cell infiltration.
• The study was conducted on 500 LUAD patients.

Sources:

• Expression of immunogenic cell death-related genes is correlated with the immune microenvironment and predicts prognosis in lung adenocarcinoma. Molecular Immunology, 2025;186:70-81.
• Yin Liang, Dept. of clinical laboratory, Civil Aviation General Hospital, Beijing 100123, People's Republic of China.
• Fushan Gao and Wenlin Gong, additional authors from the Civil Aviation General Hospital.
• Molecular Immunology, Pergamon-elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England.