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Updated: Jul 17, 2026

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
Published on: June 21, 2021
Thiol proteins, redox modulation and parenchymal lung disease
V L Kinnula1, K Vuorinen, H Ilumets
1Department of Medicine, Division of Pulmonary Medicine, University of Helsinki, Helsinki, Finland. vuokko.kinnula@helsinki.fi
Lung diseases like COPD and fibrosis stem from oxidative stress and redox imbalance. Understanding thiol-regulated mechanisms and antioxidant repair systems is key to developing new treatments for these conditions.
Area of Science:
- Pulmonary Medicine
- Biochemistry
- Oxidative Stress Research
Background:
- The lung's direct exposure to oxygen and irritants can cause redox imbalance.
- Parenchymal lung diseases, including emphysema/COPD and fibrosis, share common pathways involving oxidative stress.
- Current medications offer limited therapeutic effects for COPD and pulmonary fibrosis.
Purpose of the Study:
- To review thiol (-SH)-regulated mechanisms in COPD and pulmonary fibrosis.
- To explore redox-regulated defense and oxidant repair mechanisms in the lung.
- To highlight the role of glutathione (GSH) metabolism and related enzymes.
Main Methods:
- Literature review focusing on thiol regulation and redox mechanisms in lung disease.
- Analysis of the role of thioredoxin/peroxiredoxin and glutaredoxin protein families.
- Examination of glutathione metabolism and detoxification pathways.
Main Results:
- Oxidative stress alters the conformation and activity of redox-regulated proteins (proteases and repair enzymes).
- These proteins influence glutathione metabolism and crosstalk with GSH-associated detoxification enzymes.
- Disturbances in thiol status and reactive oxygen species are central to disease progression.
Conclusions:
- Understanding oxidant-mediated lung damage is crucial for developing preventative strategies.
- Targeting thiol-regulated pathways and redox balance may offer novel therapeutic approaches for lung diseases.
- Further research into lung antioxidant systems can lead to interventions for parenchymal lung diseases.
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