Cysteine Proteinase Cathepsin H in Lung Cancer
Author Information
Author(s): Schweiger A, Staib A, Werle B, Kras̆ovec M, Lah T T, Ebert W, Turk V, Kos J
Primary Institution: Jožef Stefan Institute
Hypothesis
The study evaluates the role of cysteine peptidase cathepsin H in human lung cancer and its relation to prognosis and cigarette smoking.
Conclusion
The study found that higher levels of cathepsin H in lung tumors are associated with poor survival, especially in smokers.
Supporting Evidence
- The median level of cathepsin H in tumor tissue was lower than in adjacent non-tumorous lung parenchyma.
- Higher cathepsin H levels were found in small-cell and adenocarcinomas compared to other types.
- Smokers showed a significant difference in cathepsin H levels between tumor tissue and non-tumorous lung parenchyma.
- Cathepsin H levels in sera were significantly higher in patients with malignant and benign lung diseases than in healthy controls.
Takeaway
This study looked at a protein called cathepsin H in lung cancer patients and found that smokers with high levels of this protein didn't live as long.
Methodology
Protein levels of cathepsin H were determined in lung tumor tissue and sera using enzyme-linked immunosorbent assay (ELISA).
Participant Demographics
The study included 171 patients with malignant tumors, 34 with benign lung diseases, and 47 healthy controls.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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