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Ganoderma triterpenoids attenuate tumour angiogenesis in lung cancer tumour-bearing nude mice
Pharmaceutical Biology ( IF 3.8 ) Pub Date : 2020-01-01 , DOI: 10.1080/13880209.2020.1839111
Wei Liu 1 , Ruiying Yuan 2 , Aihua Hou 1 , Song Tan 1 , Xin Liu 1 , Pengcheng Tan 1 , Xiaoming Huang 1 , Jinguo Wang 1
Affiliation  

Abstract Context Ganoderma lucidum (Leyss. ex Fr.) Karst. (Polyporaceae) triterpenoids (GLTs), the main components and bioactive metabolites of G. lucidum, have antitumour activity. Objective We investigated the effects of GLTs in lung cancer tumour-bearing nude mice and their potential mechanism. Materials and methods Forty BALB/c nude mice were randomly divided into four groups: saline control, GLT (1 g/kg/day), gefitinib (GEF, 15 mg/kg/day), and GLT (1 g/kg/day) + GEF (15 mg/kg/day) for 14 days. Cell viability was conducted using the Cell Counting Kit-8 assay. The tumour volume, inhibition rate, histopathological, microvessel density (MVD), mRNAs, and proteins were determined. Results GLTs inhibited the cell viability of A549 cells with an IC50 value of 14.38 ± 0.29 mg/L, while the IC50 value of GEF was 10.26 ± 0.47 μmol/L. The tumour inhibition rate in the GLT + GEF group (51.54%) was significantly decreased relative to the saline control… group (p < 0.05). The MVD in the GLT + GEF group (2.9 ± 0.7) was significantly decreased than that in the saline control group (12.8 ± 1.4, p < 0.05). The angiostatin, endostatin, and Bax protein expression in the GLT, GEF, and GLT + GEF groups were significantly increased compared to those in the saline control group, while the VEGFR2 and Bcl-2 protein expression were decreased. Discussion and conclusions Our study provided evidence that GLT and GEF combination therapy may be a promising candidate for the treatment of lung cancer and as an experimental basis for clinical treatment.

中文翻译:

灵芝三萜类化合物减弱肺癌荷瘤裸鼠的肿瘤血管生成

摘要语境灵芝 (Leyss. ex Fr.) Karst。(Polyporaceae)三萜类化合物(GLTs)是灵芝的主要成分和生物活性代谢物,具有抗肿瘤活性。目的研究GLTs对肺癌荷瘤裸鼠的作用及其潜在机制。材料与方法 40 只 BALB/c 裸鼠随机分为四组:生理盐水对照组、GLT(1 g/kg/天)、吉非替尼(GEF,15 mg/kg/天)和 GLT(1 g/kg/天) ) + GEF(15 毫克/公斤/天),持续 14 天。使用细胞计数试剂盒-8 测定法进行细胞活力。测定肿瘤体积、抑制率、组织病理学、微血管密度(MVD)、mRNA和蛋白质。结果 GLTs抑制A549细胞的细胞活力,IC50值为14.38±0.29mg/L,而GEF的IC50值为10.26±0.47μmol/L。GLT + GEF 组的肿瘤抑制率(51.54%)相对于生理盐水对照组显着降低(p < 0.05)。GLT + GEF 组的 MVD (2.9 ± 0.7) 显着低于生理盐水对照组 (12.8 ± 1.4, p < 0.05)。与生理盐水对照组相比,GLT、GEF和GLT+GEF组血管抑制素、内皮抑素和Bax蛋白表达显着增加,而VEGFR2和Bcl-2蛋白表达降低。讨论和结论 我们的研究提供了证据,表明 GLT 和 GEF 联合疗法可能是治疗肺癌的有希望的候选者,并作为临床治疗的实验基础。GLT + GEF 组的 MVD (2.9 ± 0.7) 显着低于生理盐水对照组 (12.8 ± 1.4, p < 0.05)。与生理盐水对照组相比,GLT、GEF和GLT+GEF组血管抑制素、内皮抑素和Bax蛋白表达显着增加,而VEGFR2和Bcl-2蛋白表达降低。讨论和结论 我们的研究提供了证据,表明 GLT 和 GEF 联合疗法可能是治疗肺癌的有希望的候选者,并作为临床治疗的实验基础。GLT + GEF 组的 MVD (2.9 ± 0.7) 显着低于生理盐水对照组 (12.8 ± 1.4, p < 0.05)。与生理盐水对照组相比,GLT、GEF和GLT+GEF组血管抑制素、内皮抑素和Bax蛋白表达显着增加,而VEGFR2和Bcl-2蛋白表达降低。讨论和结论 我们的研究提供了证据,表明 GLT 和 GEF 联合疗法可能是治疗肺癌的有希望的候选者,并作为临床治疗的实验基础。而VEGFR2和Bcl-2蛋白表达降低。讨论和结论 我们的研究提供了证据,表明 GLT 和 GEF 联合疗法可能是治疗肺癌的有希望的候选者,并作为临床治疗的实验基础。而VEGFR2和Bcl-2蛋白表达降低。讨论和结论 我们的研究提供了证据,表明 GLT 和 GEF 联合疗法可能是治疗肺癌的有希望的候选者,并作为临床治疗的实验基础。
更新日期:2020-01-01
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