大理大学学报 ›› 2021, Vol. 6 ›› Issue (2): 1-9.DOI: 10. 3969 / j. issn. 2096-2266. 2021. 02. 001

• 药学 •    下一篇

美洲大蠊多肽PAP-2对肝癌血管生成、侵袭及转移能力的影响

张鸿翰1,2,张蕊3,王瑶4,吕鸿1,2,吴定宇5,彭芳1,2*   

  1. (1.大理大学药学院,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 .昆明市儿童医院,昆明650000;4.西双版纳傣族自治州农垦医院,云南景洪666100;
    5.大理大学实验室管理处,云南大理671000)
  • 收稿日期:2020-01-02 修回日期:2020-04-17 出版日期:2021-02-15 发布日期:2021-03-17
  • 通讯作者: 彭芳,教授,E-mail:pengfang6556@aliyun.com。
  • 作者简介:张鸿翰,初级药师,主要从事肿瘤微研究。
  • 基金资助:
    国家自然科学基金项目(81560600)

Effects of Periplaneta americana Polypeptide PAP-2 on Angiogenesis, Invasiveness and Metastasis in Hepatocellular Carcinoma

Zhang Honghan1, 2, Zhang Rui3, Wang Yao4, Lü Hong1, 2, Wu Dingyu5, Peng Fang1, 2*   

  1. (1. College of Pharmacy, Dali University, Dali, Yunnan 671000, China; 2.Yunnan Provincial Key Laboratory of Entomological
    Biopharmaceutical R&D, Dali, Yunnan 671000, China; 3. Kunming Children´s Hospital, Kunming 650000, China; 4. Xishuangbanna
    Agricultural Reclamation Hospital, Jinghong, Yunnan 666100, China; 5. The Laboratory Management Division,
    Dali University, Dali, Yunnan 671000, China)
  • Received:2020-01-02 Revised:2020-04-17 Online:2021-02-15 Published:2021-03-17

摘要: 目的:通过体内实验探讨美洲大蠊多肽PAP-2对肝癌血管生成、侵袭及转移能力的影响和作用机制。方法:建立Balb/c
小鼠荷瘤模型,观察美洲大蠊多肽PAP-2、CII-3和脱脂膏对肿瘤生长能力的影响;苏木精-伊红(HE)染色法观察肿瘤组织的
病理变化;分别用酶联免疫吸附试验(ELISA)、免疫组织化学染色(IHC)法检测小鼠血清中碱性成纤维细胞生长因子(bFGF)、
CD34分子、金属基质蛋白酶-9(MMP-9)和转化生长因子-β(TGF-β)的含量,肿瘤组织中的相应蛋白表达水平;实时荧光定量
聚合酶链反应(Real-time qPCR)测定肿瘤组织中bFGF、MMP-9、TGF-β的mRNA表达水平。结果:PAP-2处理后肿瘤的生长
受到抑制,脏器指数增加,肿瘤HE染色显示在不同剂量组均出现不同程度坏死;PAP-2可下调小鼠血清中的bFGF含量;PAP-2
下调肿瘤组织中bFGF、CD34、MMP-9和TGF-β 蛋白的表达作用优于CⅡ-3和脱脂膏(P < 0.05),不同剂量的PAP-2对肿瘤
组织中MMP-9 mRNA、bFGF mRNA、TGF-β mRNA的表达有一定的促进作用。结论:PAP-2可以抑制H22荷瘤小鼠的肿瘤生
长,其作用机制与下调肝癌组织中bFGF、CD34、MMP-9和TGF-β 蛋白的表达有关,PAP-2的作用优于CⅡ-3和脱脂膏。

关键词: 血管生成, 肝癌, 侵袭, 转移, 美洲大蠊多肽

Abstract: Objective: To investigate the effects and mechanisms of Periplaneta americana peptides PAP-2 on the angiogenesis,
invasion and metastasis of hepatocellular carcinoma by in vivo experiments. Methods: Establish a tumor-bearing model of Balb/c mice
and observe the effects of Periplaneta americana peptides PAP-2, CⅡ-3 and skimmed cream on tumor growth ability. Hematoxylineosin(
HE)staining was used to observe the pathological changes of tumor tissue. Enzyme linked immunosorbent assay(ELISA)and
immunohistochemical staining(IHC)methods were used to determine serum levels of basic fibroblast growth factor(bFGF), CD34
molecule, metal matrix proteinase-9(MMP-9)and transforming growth factor-β(TGF-β)in mice serum, and the expression level of
the corresponding protein in the tumor tissue. Real-time quantitative polymerase chain reaction(Real-time qPCR) was used to
determine the mRNA expression levels of bFGF, MMP-9 and TGF-β in tumor tissues. Results: PAP-2 can inhibit the growth of
tumors and increase the organ index of mice. HE staining of H22 tumor-bearing mice showed necrosis in different dose groups. PAP-2
can down-regulate the bFGF content in the serum of mice; PAP-2 can down-regulates the expression of bFGF, CD34, MMP-9 and
TGF-β proteins in tumor tissues better than C Ⅱ -3 and skimmed cream(P < 0.05). Different doses of PAP-2 can promote the
expression of MMP-9 mRNA, bFGF mRNA, and TGF-β mRNA in tumor tissues. Conclusion: PAP-2 can inhibit the tumor growth of
H22 tumor-bearing mice, and its mechanism is related to the down-regulation of bFGF, CD34, MMP-9 and TGF-β protein expression
in hepatocarcinoma tissues, PAP-2 has a better effect than CⅡ-3 and skimmed cream.

Key words: angiogenesis, hepatocellular carcinoma, invasiveness, metastasis, Periplaneta americana polypeptide

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