Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Chidambaram, Tamilnadu, India.
Department of Biochemistry, Government Arts College (Autonomous), Kumbakonam, Tamilnadu, India.
J Biochem Mol Toxicol. 2022 Jun;36(6):e23029. doi: 10.1002/jbt.23029. Epub 2022 Mar 3.
The objective of this study is to examine the chemopreventive effects of Nerolidol (NER) on hamster buccal pouch carcinogenesis (HBC) induced by 7,12-dimethylbenz(a)anthracene (DMBA) in male golden Syrian hamsters. In this study, oral squamous cell carcinoma was developed in the buccal pouch of an oral painted hamster with 0.5% DMBA in liquid paraffin three times weekly for 12 weeks. To assess DMBA-induced hamster buccal tissue carcinogenesis, biochemical endpoints such as Phase I and II detoxification enzymes, antioxidants, lipid peroxidation (LPO) by-products, and renal function markers, as well as histopathological examinations, were used. Furthermore, the immunohistochemical studies of interleukin-6 were investigated to find the inflammatory link in the HBC carcinogenesis. In our results, DMBA alone exposed hamsters showed 100% tumor growth, altered levels of antioxidants, detoxification agents, LPO, and renal function identifiers as compared to the control hamsters. The outcome in present biochemical, histopathological, and immunohistochemistry studies has been found a reverse in NER-treated hamsters against the tumor. This study concluded that NER modulated the biochemical profiles (antioxidants, detoxification, LPO, and renal function markers) and inhibited tumor development in DMBA induced oral carcinogenesis.
本研究旨在探讨橙花叔醇(NER)对 7,12-二甲基苯并蒽(DMBA)诱导雄性金黄地鼠颊囊癌变(HBC)的化学预防作用。在这项研究中,通过每周三次向口腔涂抹的金黄地鼠颊囊中涂抹 0.5%的 DMBA 于液体石蜡中,持续 12 周,在颊囊中诱导发生口腔鳞状细胞癌。为了评估 DMBA 诱导的仓鼠颊组织癌变,使用了生物化学终点,如 I 相和 II 相解毒酶、抗氧化剂、脂质过氧化 (LPO) 产物、肾功能标志物以及组织病理学检查。此外,还研究了白细胞介素-6 的免疫组织化学,以寻找 HBC 癌变中的炎症联系。在我们的结果中,与对照组相比,单独暴露于 DMBA 的仓鼠表现出 100%的肿瘤生长、抗氧化剂、解毒剂、LPO 和肾功能指标的水平改变。目前的生物化学、组织病理学和免疫组织化学研究的结果表明,NER 处理的仓鼠对肿瘤有逆转作用。这项研究得出结论,NER 调节了生物化学特征(抗氧化剂、解毒、LPO 和肾功能标志物),并抑制了 DMBA 诱导的口腔致癌作用中的肿瘤发展。