Daily News Analysis ‘‘14-Protein Signature’ for Early Lung Cancer Detection ’ : 10 June

Why in News: 

• Scientists have identified a ‘14-protein signature’ in blood plasma that can predict lung cancer years before diagnosis and may help in preventive treatment.

Key Points

• 14-Protein Signature: A set of 14 blood-plasma proteins identified as strong biomarkers for predicting future lung cancer risk.
• Discovered by an international research team led by Charles Swanton of the Francis Crick Institute, U.K.
• Published in the journal cell.
• Identified using Proteomics—the large-scale study of proteins present in blood plasma.
• Blood plasma acts as a liquid biopsy, providing information about health and disease conditions.
• Researchers used data from the :contentReference[oaicite:3]{index=3}, one of the world’s largest health databases.
• An Artificial Intelligence (AI) / Machine Learning (ML) model analysed plasma proteins and patient data to identify the signature.
• The model predicted lung cancer with over 75% sensitivity, often more than 5 years before diagnosis.
• Signature was validated across multiple datasets, including lifelong non-smokers.

Significance

• May enable early identification of high-risk individuals before cancer develops.
• Supports the idea that smoking and air pollution cause inflammation, which can activate dormant mutated lung cells and trigger cancer.
• Could help shift healthcare from treatment to prevention.