大理大学学报 ›› 2023, Vol. 8 ›› Issue (10): 1-8.

• 药学 •    下一篇

美洲大蠊提取物CⅡ-3对荷S180肉瘤小鼠抑瘤作用及机制初探

陆 丽1,2,何 旭3,张艳菊4,彭 芳5*   

  1. (1.大理大学基础医学院,云南大理 671000;2.云南省昆虫生物医药研发重点实验室,云南大理 671000;3.大理白族自治州人民医院药剂科,云南大理 671000;4.巍山县大仓中心卫生院,云南巍山 672401;5.大理大学药学院,云南大理 671000)

  • 收稿日期:2022-02-24 修回日期:2022-10-31 出版日期:2023-10-15 发布日期:2023-10-26
  • 通讯作者: 彭芳,教授,E-mail:pengfang6556@aliyun.com。
  • 作者简介:陆丽,实验师,主要从事肿瘤药理学研究。
  • 基金资助:

    国家自然科学基金项目(30860337)

Anti-Tumor Effect and Mechanism of CⅡ-3 Extractive from Periplaneta americana on S180 Sarcoma-Bearing Mice

Lu Li1,2, He Xu3, Zhang Yanju4, Peng Fang5*   

  1. (1.Pre-clinical College, Dali University, Dali, Yunnan 671000, China; 2.Yunnan Provincial Key Laboratory of Entomological Biopharmaceutical R&D, Dali, Yunnan 671000, China; 3. Department of Pharmacy, People′s Hospital of Dali Bai Autonomous Prefecture, Dali, Yunnan 671000, China; 4.Dacang Central Health Center, Weishan, Yunnan 672401, China; 5.College of Pharmacy, Dali University, Dali, Yunnan 671000, China)

  • Received:2022-02-24 Revised:2022-10-31 Online:2023-10-15 Published:2023-10-26

摘要:

目的:探讨美洲大蠊提取物CⅡ-3对荷S180肉瘤小鼠抑瘤作用及机制。方法:将荷S180肉瘤小鼠随机分为模型组、阳性对照(CTX)组、CⅡ-3高、中、低剂量组,另设正常对照组,每组10只小鼠,观察给药后各组小鼠肿瘤组织的病理改变,计算抑瘤率;ELISA试剂盒检测血清中血管内皮生长因子(VEGF)和端粒酶(TE)水平;免疫组织化学法检测肿瘤组织中p53、B细胞淋巴瘤-2(Bcl-2)、含半胱氨酸的天冬氨酸蛋白水解酶-3(Caspase-3)、微血管密度(MVD)和环氧合酶-2(COX-2)蛋白的表达。结果:CTX组、CⅡ-3高、中、低剂量组小鼠抑瘤率分别为85.71%、55.71%、44.28%、34.28%。CⅡ-3高、中剂量组小鼠肿瘤组织坏死区域明显。与模型组相比,CⅡ-3高剂量组小鼠血清中TE活力降低(P<0.05),CⅡ-3高、中剂量组小鼠肿瘤组织中p53、Bcl-2、MVD、COX-2表达显著降低(P<0.01),Caspase-3表达显著增加(P<0.01)。结论:CⅡ-3能显著抑制S180肉瘤的生长,其机制可能与降低TE活力,减少肿瘤组织中p53、Bcl-2、MVD、COX-2表达,增加Caspase-3表达等途径相关。

关键词:

美洲大蠊提取物, S180肉瘤, p53, Bcl-2, Caspase-3

Abstract:

Objective:To investigate the anti-tumor effect and mechanism of CⅡ-3 extractive from Periplaneta americana on S180 sarcoma-bearing mice. Methods: S180 sarcoma-bearing mice were randomly divided into model group, positive control (CTX) group, high-dose, medium-dose and low-dose CⅡ-3 groups, and a normal control group, with 10 mice in each group. The pathological changes of tumor tissue in each group were observed after administration, and the tumor inhibition rate was calculated. ELISA kits were used to test the levels of vascular endothelial growth factor(VEGF) and telomerase(TE) in serum. The expression of p53, B-cell lymphoma 2(Bcl-2), cysteinyl asparate specific protease-3(Caspase-3), microvessel density (MVD) and cyclooxygenase-2(COX-2) protein in tumor tissue were detected by immunohistochemistry. Results: The tumor inhibition rates of CTX group, high-dose, medium-dose, and low-dose CⅡ-3 groups were 85.71%, 55.71%, 44.28%, 34.28%, respectively. The necrotic area of tumor tissue was obvious in high-dose and medium-dose CⅡ-3 groups. Compared with the model group, the TE activity was decreased in high-dose CⅡ-3 group(P<0.05), and the expression of p53, Bcl-2, MVD and COX-2 in tumor tissues of high-dose and medium-dose CⅡ-3 groups were significantly decreased(P<0.01), while the Caspase-3 expression was significantly increased(P<0.01). Conclusion: CⅡ-3 can significantly inhibit the growth of S180 sarcoma, and its mechanism may be related to the reduction of TE activity, the decrease of p53, Bcl-2, MVD, COX-2 expression, and the increase of Caspase-3 expression in tumor tissue.

Key words:

extractive from Periplaneta americana, S180 sarcoma, p53, Bcl-2, Caspase-3

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