Abstract | BACKGROUND: Different types of reactive oxygen metabolites (ROMs) are known to be involved in carcinogenesis. Several studies have emphasized the formation of ROMs in ischemic tissues and in cases of inflammation. The increased amounts of ROMs in tumor tissues can either be because of their causative effects or because they are produced by the tumor itself. Our study aimed to investigate and compare the levels of ROMs in tumor tissue and adjacent lung parenchyma obtained from patients with lung cancer. METHODS: Fifteen patients (all male, mean age 63.6 ± 9 years) with non-small cell lung cancer were enrolled in the study. All patients were smokers. Of the patients with lung cancer, twelve had epidermoid carcinoma and three had adenocarcinoma. During anatomical resection of the lung, tumor tissue and macroscopically adjacent healthy lung parenchyma (control) that was 5 cm away from the tumor were obtained. The tissues were freshly frozen and stored at -20°C. The generation of ROMs was monitored using luminol- and lucigenin-enhanced chemiluminescence (CL) techniques. RESULTS: Both luminol (specific for (.) OH, H(2)O(2), and HOCl(-)) and lucigenin (selective for O(2)(.)(-)) CL measurements were significantly higher in tumor tissues than in control tissues (P <0.001). Luminol and lucigenin CL measurements were 1.93 ± 0.71 and 2.5 ± 0.84 times brighter, respectively, in tumor tissues than in the adjacent parenchyma (P = 0.07). CONCLUSION:
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Authors | Hacer Kuzu Okur, Meral Yuksel, Tunc Lacin, Volkan Baysungur, Erdal Okur |
Journal | World journal of surgical oncology
(World J Surg Oncol)
Vol. 11
Pg. 9
(Jan 17 2013)
ISSN: 1477-7819 [Electronic] England |
PMID | 23327412
(Publication Type: Comparative Study, Journal Article)
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Chemical References |
- Reactive Oxygen Species
- Luminol
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Topics |
- Adenocarcinoma
(metabolism, pathology)
- Aged
- Carcinoma, Non-Small-Cell Lung
(metabolism, pathology)
- Carcinoma, Squamous Cell
(metabolism, pathology)
- Case-Control Studies
- Female
- Humans
- Luminescent Measurements
- Luminol
(metabolism)
- Lung
(metabolism, pathology)
- Lung Neoplasms
(metabolism, pathology)
- Male
- Middle Aged
- Neoplasm Staging
- Prognosis
- Reactive Oxygen Species
(metabolism)
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