Early Lung-Cancer Risk Prediction
Summary of News
Researchers found 14 blood proteins that may help predict a person’s risk of lung cancer years before actual diagnosis. This is important because doctors are exploring blood-based tests for early cancer detection. Methods like liquid biopsy and fragmentomics may help identify cancer signs from blood samples, instead of waiting for symptoms or advanced disease. Liquid biopsy: A blood test that looks for cancer-related signals, such as tumor DNA or proteins, without needing a tissue biopsy. Fragmentomics: A method that studies small broken pieces of DNA in blood to find patterns that may indicate cancer risk. Simple meaning: Both are blood-based tools that can help detect cancer earlier and in a less invasive way.
Static Link (Preview)
Biomarkers, liquid biopsy, cell-free DNA, cancer screening, preventive health.
UPSC Trap (Preview)
UPSC may call the blood test a standalone diagnostic test in MCQs.
Possible MCQ Question
Q. With reference to blood-based cancer screening, consider the following statements.
- A.1. Liquid biopsy analyses disease signals in blood rather than surgically removed tissue.
- B.2. The 14-protein signature is already a confirmed standalone diagnostic test for lung cancer.
- C.3. Low-dose CT is associated with lung-cancer screening among high-risk groups.
- D.Select Correct Code from Below Options:
- E.A. 1 and 2 only
- F.B. 2 and 3 only
- G.C. 1 and 3 only
- H.D. 1, 2 and 3
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Full decoder, answer, explanation and elimination clue are available inside the Prelims Antishock Tool.
- • Revision of static
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- • Evidence-to-process reasoning
- • MCQ answer + explanation
- • Elimination clue line
- • Final Antishock takeaway