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中国临床药理学与治疗学 ›› 2010, Vol. 15 ›› Issue (3): 247-250.

• 专论 • 上一篇    下一篇

白细胞介素7 基因转染口腔癌细胞株的免疫调节效应的研究

潘德顺1, 陈伟强2, 陈宏远3   

  1. 1广东药学院药理教研室;2病理生理学教研室;3免疫学教研室, 广州510006, 广东
  • 收稿日期:2010-01-13 修回日期:2010-01-13 发布日期:2020-10-14
  • 作者简介:潘德顺, 男, 博士, 副教授, 主要从事肿瘤免疫学研究。Tel:13611430747 E-mail:pandeshu@pub.Guangzhou.gd.cn
  • 基金资助:
    中国-意大利科技合作项目(200625)

Study on the effect of immune regulation of interleuk-7 (IL-7) gene transfected into human tongue squamous carcinoma cell lines

PAN De-shun1, CHEN Wei-qiang2, CHEN Hong-yuan3   

  1. 1Department of Pharmacology;2Department of Pathologic Physiology;3Department of Immunology, Guangdong College of Pharmacy, Guangzhou 510006, Guangdong, China
  • Received:2010-01-13 Revised:2010-01-13 Published:2020-10-14

摘要: 目的: 探讨IL-7 基因转染人舌鳞癌Tca8113 细胞株的免疫调节效应 。方法: 将已构建的原核/真核表达载体pBK-CMV/IL-7 转染到癌细胞株中, 采用MTT 法检测转染前后肿瘤细胞培养上清对鼠脾细胞增殖的影响;ELISA 法检测细胞培养上清转移生长因子β1 (TGF-β1)、血管内皮生长因子(VEGF) 和IL-10 的浓度。将pPKCMV/IL-7 癌细胞株移植于小鼠腹腔, 观察肿瘤细胞的成瘤性;并采用MTT 法检测其NK 杀伤活性 。结果: IL-7 基因转染癌细胞株的培养上清对鼠脾细胞的增殖抑制作用与对照组比较显著下降(P<0.05), 并且IL-7 基因转染的肿瘤细胞产生TGF-β1、VEGF 和IL-10 三种免疫抑制因子明显降低(P<0.05) ;IL-7 基因转染组鼠腹腔瘤结节明显小于对照组(P<0.05) ;NK 的杀伤活性与对照组比较, 具统计学差异(P<0.05) 。结论: I L-7 基因转染人舌鳞癌细胞株具有抑瘤作用, 其机理可能是通过降低肿瘤细胞产生免疫抑制因子,进而促进淋巴细胞增殖, 提高NK 的杀伤活性。

关键词: IL-7, 免疫调节, 口腔癌细胞株

Abstract: AIM: To investigate the effect of immune regulation of I L-7 gene transfected into human carcinoma line Tca8113. METHODS pBK-CMV/IL-7 plasmid was transfected into human tongue squamous carcinoma cell lines. The effect of the supernatant of carcinoma culture on the proliferation of lymphocytes was measured using MTT method.The concentrations of TGF-β1, VEGF and IL-10 were determined by ELISA.Human carcinoma cells lines with pPK-CMV/I L-7 were injected into peritoneal of mice, and the tumor formed in peritoneal was detected.The killing activity of NK was analyzed by MT T. RESULTS:Compared with control group, the supernatant from carcinoma cells culture could significantly suppress the proliferation of lymphocytes (P<0.05).The supernatant levels of TGF-β1, VEGF and IL-10 were obviously decreased.The tumor volume in experimental group were fewer then those in control group(P<0.05).The killing activity of NK was significantly increased (P<0.05). CONCLUSION: IL-7 gene transfection into human carcinoma line Tca8113 could inhibit tumor growth by reducing secretion of immune suppressive factors, enhancing lymphocyte proliferation and increasing the killing activity of NK.

Key words: IL-7, Immune regulation, Human tongue squamous carcinoma cell lines

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