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Polycyclic aromatic hydrocarbons in human bronchial carcinoma
Cancer Letters
|March 1, 1976
Summary
Polycyclic aromatic hydrocarbons (PAH) were found in human lung cancer tissue. Benzo(a)pyrene was detected in all samples, indicating a potential link between PAH exposure and bronchial carcinoma.
Area of Science:
- Oncology
- Environmental Health
- Toxicology
Background:
- Polycyclic aromatic hydrocarbons (PAH) are environmental pollutants.
- Their presence in human tissues, particularly cancerous ones, requires investigation.
Purpose of the Study:
- To determine the presence and extent of PAH in human bronchial carcinoma.
- To identify specific PAH compounds within cancerous lung tissue.
Main Methods:
- Analysis of 24 human bronchial carcinoma samples from surgical and autopsy sources.
- Testing for 12 specific PAH compounds using direct fluorescence analysis on thin-layer plates.
Main Results:
- Four out of 12 tested PAH were detected in cancerous tissues.
- Benzo(a)pyrene was identified in all examined carcinoma samples.
- Fluoranthene and benzo(ghi)perylene were also detected.
Conclusions:
- The study confirms the presence of specific PAH in human bronchial carcinoma.
- Benzo(a)pyrene is consistently found in lung cancer tissue.
- Further research is needed to understand PAH's role in lung carcinogenesis, considering deposition, elimination, and metabolism.