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Updated: Jun 30, 2026
TMT Sample Preparation for Proteomics Facility Submission and Subsequent Data Analysis
Published on: June 8, 2020
Proteomic analysis of proteins associated with tt-DDE induced toxicity in BEAS-2B cells
Pin-Pin Lin1, Ming-Hui Yang, Pao-Chi Liao
1Division of Environmental Health and Occupational Medicine, National Health Research Institutes, Taiwan.
Abstract:
Trans, trans-2,4-decadienal (tt-DDE), a specific type of dienaldehyde, is abundant in heated oils or cooking oil fumes. Ingestion of heated oils and exposure to cooking oil fumes has been suggested to have a great health impact in a variety of organs, including the lungs. Previous studies have demonstrated that acute exposures to high doses of tt-DDE have induced oxidative stress, genotoxicity, and cytotoxicity in human lung cells. The objective in utilizing proteomic techniques of this study was to identify protein biomarkers associated with tt-DDE-induced oxidative stress and cytotoxicity in human bronchial epithelial cells BEAS-2B. Experimental results suggested that DJ-1 and cofilin proteins were protein biomarkers for tt-DDE-induced cytotoxicity and oxidative stress in lung cells. DJ-1 was especially an early biomarker for tt-DDE exposure.
Insights
Trans, trans-2,4-decadienal (tt-DDE) in heated oils causes lung cell damage. DJ-1 and cofilin proteins are identified as biomarkers for this tt-DDE-induced oxidative stress and cytotoxicity.
Area of Science:
- Environmental Health
- Toxicology
- Proteomics
Background:
- Trans, trans-2,4-decadienal (tt-DDE), a dienaldehyde, is prevalent in heated oils and cooking fumes.
- Exposure to heated oils and fumes is linked to adverse health effects, particularly in the lungs.
- Previous research indicates tt-DDE induces oxidative stress, genotoxicity, and cytotoxicity in human lung cells.
Purpose of the Study:
- To identify protein biomarkers associated with tt-DDE-induced oxidative stress and cytotoxicity.
- To investigate the effects of tt-DDE on human bronchial epithelial cells (BEAS-2B) using proteomic techniques.
Main Methods:
- Proteomic techniques were employed to analyze protein expression in BEAS-2B cells exposed to tt-DDE.
- Differential protein expression analysis was performed to identify potential biomarkers.
Main Results:
- DJ-1 and cofilin proteins were identified as significant biomarkers.
- These proteins are associated with tt-DDE-induced cytotoxicity and oxidative stress in lung cells.
- DJ-1 emerged as an early biomarker for tt-DDE exposure.
Conclusions:
- DJ-1 and cofilin are potential protein biomarkers for tt-DDE-induced lung cell damage.
- DJ-1 may serve as an early indicator of exposure to tt-DDE.
- These findings contribute to understanding the molecular mechanisms of tt-DDE toxicity in the lungs.
