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基仑诺尔通过调节氧化应激和炎症标志物对 N-甲基-N-亚硝基脲诱导的大鼠胃癌发挥保护作用。

Kirenol Exhibits the Protective Role against N-Methyl-N-Nitrosourea-Induced Gastric Cancer in Rats via Modulating the Oxidative Stress and Inflammatory Markers.

机构信息

Department of Gastroenterology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, No. 11 WuyingShan Middle Road, Jinan City, Shandong Province, 250031, China.

Department of General Surgery, The People's Hospital of Zhaoyuan City, No. 168 Yingbin Road, Zhaoyuan City, Shandong Province, 265400, China.

出版信息

J Environ Pathol Toxicol Oncol. 2020;39(4):345-355. doi: 10.1615/JEnvironPatholToxicolOncol.2020035475.

Abstract

BACKGROUND

Gastric cancer (GC) may arise in any region of the stomach. Poorly diagnosed GC results in almost one million mortalities annually worldwide. Kirenol is a bioactive compound present in the Sieges beckia sps.

OBJECTIVE

In this current, we investigate the anticancer capacity of kirenol against the MNG-stimulated GC in rats via modulating the antioxidants status and inhibition of NF-κB cascade.

METHODOLOGY

GC was provoked in the rats via supplementing 100 mg/kg of MNU through the intragastric route for 16 weeks concomitantly with 30 mg/kg of kirenol treatment. The body weight, tumor volume, and incidence of all animals were tabulated every week. The status of gastrin, ALP, LDH, and γ-GT was studied through the ELISA tests. The lipid peroxidation, enzymatic, and nonenzymatic antioxidants were determined via standard procedures. Expression of thioredoxin, glutaredoxin, NF-κB, TNF-α, IL-6, PGE2 was studied through RT-PCR. The gastric mucosa was analyzed microscopically.

RESULTS

Kirenol treatment appreciably improved the body weight and diminished the tumor volume and incidences in the MNG-challenged rats. The lipid peroxidation was diminished and the enzymatic and non-enzymatic antioxidants were improved by the kirenol treatment. Kirenol suppressed the status of serum markers of GC and gastrin, ALP, LDH, and γ-GT. The mRNA expression of thioredoxin, glutaredoxin, NF-κB, TNF-α, IL-6, PGE2 was downregulated via the kirenol in the MNG-challenged rats. Histopathological analysis result also confirmed the therapeutic role of kirenol.

CONCLUSION

These findings proved that the kirenol appreciably prevented the MNG-triggered GC in rats and it may become a potential drug for the GC treatment in the future.

摘要

背景

胃癌(GC)可能发生在胃的任何部位。诊断不佳的 GC 导致全球每年近 100 万人死亡。基伦醇是 Sieges beckia sps 中存在的一种生物活性化合物。

目的

本研究旨在通过调节抗氧化状态和抑制 NF-κB 级联反应,研究基伦醇对 MNU 刺激的大鼠 GC 的抗癌能力。

方法

通过胃内给予 100mg/kg 的 MNU 16 周,同时给予 30mg/kg 的基伦醇,在大鼠中诱发 GC。每周记录所有动物的体重、肿瘤体积和发病率。通过 ELISA 试验研究胃泌素、碱性磷酸酶(ALP)、乳酸脱氢酶(LDH)和γ-GT 的状态。通过标准程序测定脂质过氧化、酶和非酶抗氧化剂。通过 RT-PCR 研究硫氧还蛋白、谷氧还蛋白、NF-κB、TNF-α、IL-6、PGE2 的表达。通过显微镜分析胃黏膜。

结果

基伦醇治疗可显著改善 MNG challenged 大鼠的体重,减少肿瘤体积和发病率。基伦醇治疗可降低脂质过氧化水平,改善酶和非酶抗氧化剂。基伦醇抑制了 GC 和胃泌素、ALP、LDH、γ-GT 的血清标志物的状态。基伦醇下调了 MNG-challenged 大鼠中硫氧还蛋白、谷氧还蛋白、NF-κB、TNF-α、IL-6、PGE2 的 mRNA 表达。组织病理学分析结果也证实了基伦醇的治疗作用。

结论

这些发现证明基伦醇可显著预防 MNG 诱发的大鼠 GC,它可能成为未来 GC 治疗的潜在药物。

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