癌变·畸变·突变 ›› 2009, Vol. 21 ›› Issue (5): 334-338.doi: 10.3969/j.issn.1004-616x.2009.05.002

• 论著 • 上一篇    下一篇

外源性神经生长因子对人胰腺癌MIA PaCa-2细胞增殖能力的影响

孟令新1;丁兆军1;陈希平1;张 红1;迟玉华1;赵智刚2;史玉荣2   

  1. 1.济宁医学院附属日照市人民医院肿瘤科,日照市肿瘤治疗中心,山东 日照 276826; 2.天津医科大学肿瘤医院国家肿瘤学“211工程”中心实验室,天津 30006
  • 收稿日期:2009-03-19 修回日期:2009-04-09 出版日期:2009-09-30 发布日期:2009-09-30
  • 通讯作者: 孟令新

Nerve Growth Factor on the Proliferation of Human Pancreatic Carcinoma Cells

MENG Ling-xin1;DING Zhao-jun1; CHEN Xi-ping1;ZHANG Hong1;CHI Yu-hua1; ZHAO Zhi-gang2;SHI Yu-rong2   

  1. 1.Oncology Department,Jining Medical College Affilated Rizhao People's Hospital, Rizhao Cancer Therapy Center,Rizhao 276826,Shandong;2. 211-Projects State Key Laboratory of Experimental Cancer,Tianjin Medical University Cancer Hospital,Tianjin 300060,China
  • Received:2009-03-19 Revised:2009-04-09 Online:2009-09-30 Published:2009-09-30
  • Contact: MENG Ling-xin

摘要: 背景与目的: 观察外源性神经生长因子(β-NGF)对人胰腺癌MIA PaCa-2细胞增殖及细胞周期的影响,为深入探讨胰腺癌侵袭转移及调控机制提供实验依据。 材料与方法: 将不同浓度的β-NGF和酪氨酸激酶特异性抑制剂K252a作用于体外培养的MIA PaCa-2细胞不同时间,应用克隆平板实验、MTT实验和流式细胞术检测外源性β-NGF对MIA PaCa-2细胞增殖及细胞周期的影响。 结果: 经β-NGF处理的MIA PaCa-2细胞平均克隆形成率均明显高于对照组(P<0.05),100 ng/ml β-NGF克隆形成率最高。随着β-NGF浓度的增加和培养时间的延长,吸光度OD值逐渐增加,100 ng/ml浓度组培养72 h时OD值达最高,增殖率达48.68%。而随着K252a浓度的增加,MIA PaCa-2细胞在24、48、72 h和96 h时细胞OD值与对照组相比逐渐降低(P<0.05),100 ng/ml作用72 h组细胞OD值抑制率最大,为18.05%。β-NGF诱导MIA PaCa-2细胞G0/G1期百分比升高,而S期、G2/M期百分比降低,其诱导作用的最佳质量浓度是100 ng/ml,最佳时间为72 h。 结论: β-NGF具有促进胰腺癌MIA PaCa-2细胞增殖的作用。

关键词: 胰腺癌, 神经生长因子, 细胞培养, 流式细胞仪, 增殖

Abstract: BACKGROUND AND AIM: To investigate the effect of nerve growth factor(β-NGF) on the proliferative ability and cell cycle of human pancreatic carcinoma cells MIA PaCa-2. MATERIALS AND METHODS: Colony forming efficiency of MIA PaCa-2 cells treated with β-NGF was higher than normal group(P<0.05),especially with the 100 ng/ml β-NGF group.Absorbence gradually increased,along with β-NGF concentration enhancement and culture time prolongation.Proliferation rate reached 48.68% when cultured 72 hours in 100 ng/ml β-NGF group.However, absorbence gradually decreased in K252a group at 24,48,72 h and 96 h.Inhibition rate was reduced to 18.05% in 100 ng/ml K252a group.Effect of different concentrations of β-NGF and K252a on MIA PaCa-2 cells proliferation was evaluated by MTT and Flow Cytometry. RESULTS: β-NGF promoted MIA PaCa-2 proliferation and growth which were markedly inhibited by K252a(P<0.05). CONCLUSION: β-NGF could enhance the proliferation of MIA PaCa-2 pancreatic carcinoma cells.

Key words: pancreatic carcinoma, nerve growth factor(β-NGF), cell culture, flow cytometry, proliferation

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