Cathepsin S and Lung Cancer Prognosis
Author Information
Author(s): Kos J, Sekirnik A, Kopitar G, Cimerman N, Kayser K, Stremmer A, Fiehn W, Werle B
Primary Institution: Jožef Stefan Institute
Hypothesis
The study investigates the relationship between cathepsin S levels in lung cancer patients and their prognosis.
Conclusion
Higher levels of cathepsin S in tumours and lung parenchyma are associated with a lower risk of death in lung cancer patients.
Supporting Evidence
- Cathepsin S levels were significantly higher in lymph nodes compared to tumours and lung parenchyma.
- Patients with low levels of Cat S had a higher risk of death.
- Immunohistochemical analysis showed strong staining of Cat S in lymphocytes and histiocytes.
Takeaway
Cathepsin S is a protein that can help doctors understand how serious lung cancer is; more of it in the body means a better chance of living longer.
Methodology
Cathepsin S levels were measured using enzyme-linked immunosorbent assay (ELISA) in tissue samples and sera from lung cancer patients.
Participant Demographics
Patients included 60 lung cancer patients and 24 patients for lymph node analysis.
Statistical Information
P-Value
P=0.025 for tumours; P=0.02 for parenchyma
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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