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中国临床药理学与治疗学 ›› 2008, Vol. 13 ›› Issue (3): 254-258.

• 基础研究 • 上一篇    下一篇

携带Kringle 5 基因重组腺病毒的构建及其对荷肺癌小鼠生存期的作用

刘岩1, 刘芳3, 叶迅3, 董继斌2, 陆琴3, 赵毅3, 李秋华1, 陈红专3   

  1. 1复旦大学附属华山医院眼科, 上海200040;
    2复旦大学药学院生物化学教研室, 上海200032;
    3上海交通大学医学院药理学教研室, 上海200025
  • 收稿日期:2007-10-09 修回日期:2007-10-09 发布日期:2020-10-15
  • 通讯作者: 陈红专, 男, 教授, 博士生导师, 研究方向:分子药理学。E-mail:yaoli@shsmu.edu.cn
  • 作者简介:刘岩, 女, 硕士研究生, 主治医师, 研究方向:眼底血管疾病及肿
  • 基金资助:
    上海市自然科学基金项目(03Z214116)

Construction of recombinant adenovirus carrying Kringle 5 gene and effects on the survival of pulmonary carcinoma bearing mice

LIU Yan1, LIU Fang3, YE Xun3, DONG Ji-bin2, LU Qin3, ZHAO Yi3, LI Qiu-hua1, CHEN Hongzhuan3   

  1. 1Department of Ophthalmology, Fudan University Affiliated Huashan Hospital, Shanghai 200040, China;
    2Department of Biochemistry, School of Pharmacy, Fudan University, Shanghai 200032, China;
    3Department of Pharmacology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
  • Received:2007-10-09 Revised:2007-10-09 Published:2020-10-15

摘要: 目的 构建携带人纤溶酶原Kringle 5(K5)基因重组腺病毒并观察其在小鼠肺癌细胞中的表达和对荷TC-1 瘤小鼠的生存期的影响。 方法 构建携带人纤溶酶原K5 基因表达框的腺病毒载体Ad-EF1α-K5, 用RT-PCR 法检测腺病毒感染TC-1细胞后K5 mRNA 的表达, 用免疫沉淀和Westernbloting 法检测腺病毒感染TC-1 细胞后K5 蛋白的表达。建立荷TC-1 小鼠肺癌C57BL/6 小鼠模型,观察重组腺病毒对荷瘤小鼠生存期的影响。取肿瘤组织做免疫组织化学染色并计数微血管密度。 结果 携带K5 基因的人V 型腺病毒能有效感染小鼠肺癌TC-1 细胞, 在转录和翻译水平进行表达, 能有效延长荷瘤鼠的生存期并降低肿瘤微血管密度。 结论 腺病毒可作为便捷的载体携带K5基因感染肿瘤细胞, 分泌表达K5 蛋白, 延长荷瘤小鼠生存期, 可能与其通过抑制肿瘤区血管生成、遏制肿瘤区血供有关。

关键词: 腺病毒, Kringle 5, 血管生成, TC-1

Abstract: AIM: To construct the recombinant adenovirus containing human plasminogen Kringle 5 (K5)gene, then observe the secreted expression and effect of K5 protein on TC-1 tumors. METHODS: We cloned K5 gene into the genome of replication-defective adenovirus by virus recombination technology;the K5 RNA expression was evaluated by RT-PCR;the K5 protein secreted expression was determined by Immunoprecipitation andWestern blotting;the effect of K5 was observed in xenograft lung cancr mice model;and the tumor microvascular density (MVD)was counted. RESULTS: The recombined adenovirus Ad-EF1α-K5 was constructed successfully and was expressing in the levels of both mRNA and protein.In the mice lung cancer xenograft model, the recombinant adenovirus can delay the growth of established TC-1 tumors and decrease the MVD. CONCLUSION: Recombinant adenovirus vectors Ad-EF1α-K5 can efficiently express protein K5 and inhibit tumor growth in the mice lung cancer xenograft model.The effect may related to inhibitory effect on angiogenesis.

Key words: adenovirus, Kringle 5, angiogenesis, TC-1

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