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吉非替尼耐药人肺腺癌细胞的建立及耐药机制的研究

, PP. 1045-1049

Keywords: 吉非替尼,耐药性,表皮生长因子受体,非小细胞肺癌

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Abstract:

目的建立吉非替尼耐药的人肺腺癌细胞株A549/GR,并初步探讨其生物学特性及其耐药机制。方法采用逐步增加吉非替尼剂量法诱导人肺腺癌细胞A549形成吉非替尼耐药的细胞株A549/GR;CCK-8法检测细胞的半数抑制浓度(IC50)及绘制细胞生长曲线,并计算耐药指数;显微镜下观察吉非替尼作用前后A549、A549/GR细胞形态学的改变;直接测序法检测EGFR基因在酪氨酸激酶区的基因突变;qRT-PCR法检测EGFR基因在mRNA水平表达的改变。结果CCK-8法测得A549/GR细胞的耐药指数为6.00,显示成功建立了吉非替尼耐药的细胞模型,其倍增时间较亲代细胞缩短;形态学观察显示A549/GR细胞极性消失,有变长梭形的趋势;A549/GR细胞系EGFR基因酪氨酸激酶区未发现基因突变;qRT-PCR法显示A549/GR细胞EGFR基因在mRNA水平较亲代细胞轻度上调。结论成功建立吉非替尼耐药人肺腺癌A549/GR细胞模型,A549/GR细胞耐药性的产生与EGFR基因18-21外显子区域突变无关。

References

[1]  Suda K, Tomizawa K, Osada H, et al. Conversion from the "oncogene addiction" to "drug addiction" by intensive inhibition of the EGFR and MET in lung cancer with activating EGFR mutation [J]. Lung Cancer. 2012 ,76(3):292-299.
[2]  Guix M, Faber AC, Wang SE, et al. Acquired resistance to EGFR tyrosine kinase inhibitors in cancer cells is mediated by loss of IGF-binding proteins [J]. J Clin Invest,2008,118:2609-2619.
[3]  Kris MG, Natale RB, Herbst RS, et al. Efficacy of gefitinib, an inhibitor of the epidermal growth factor receptor tyrosine kinase, in symptomatic patients with non-small cell lung cancer: a randomized trial [J]. JAMA,2003 ,290(16):2149-58. PubMed PMID:14570950.
[4]  Brugger W, Thomas M. EGFR-TKI resistant non-small cell lung cancer (NSCLC):new developments and implications for future treatment[J]. Lung Cancer,2012,77(1):2-8.
[5]  Mok TS, Wu YL, Thongprasert S, et al. Gefitinib or carboplatin-paclitaxel in pulmonary adenocarcinoma [J]. N Engl J Med,2009 ,361(10):947-57. Epub 2009 Aug 19. PubMed PMID: 19692680.
[6]  Cappuzzo F, Ciuleanu T, Stelmakh L, et al. Erlotinib as maintenance treatment in advanced non-small-cell lung cancer: a multicentre, randomised, placebo-controlled phase 3 study [J]. Lancet Oncol, 2010,11:521-529.
[7]  Nurwidya F, Takahashi F, Murakami A, et al. Acquired resistance of non-small cell lung cancer to epidermal growth factor receptor tyrosine kinase inhibitors [J]. Respir Investig,2014 ,52(2):82-91.
[8]  Hata A, Katakami N, Yoshioka H, et al. Rebiopsy of non-small cell lung cancer patients with acquired resistance to epidermal growth factor receptor-tyrosine kinase inhibitor: Comparison between T790M mutation-positive and mutation-negative populations [J]. Cancer,2013 ,119(24):4325-4332.
[9]  Peled N, Wynes MW, Ikeda N, et al. Insulin-like growth factor-1 receptor (IGF-1R) as a biomarker for resistance to the tyrosine kinase inhibitor gefitinib in non-small cell lung cancer [J]. Cell Oncol (Dordr),2013,36(4):277-288.
[10]  Gelsomino F, Facchinetti F, Haspinger ER, et al. Targeting the MET gene for the treatment of non-small-cell lung cancer [J]. Crit Rev Oncol Hematol,2014,89(2):284-299.
[11]  车德海,田强,曹京燕,等. DNA直接测序技术检测EGFR基因突变指导厄洛替尼一线治疗晚期非小细胞肺癌的临床观察 [J]. 现代肿瘤医学,2011,19(10):2009-2013.
[12]  赵婧雅,王笑影,曾海英,等. 直接测序法与蝎形探针扩增阻滞突变系统检测肺癌小活检标本EGFR基因突变的比较[J]. 中国癌症杂志,2013,23(02):106-113.
[13]  Noro R,Gemma A,Kosaihira S, et al. Gefitinib (IRESSA) sensitive lung cancer cell lines show phosphorylation of Akt without ligand stimulation [J].BMC Cancer,2006,6:277.
[14]  Koizumi F, Shimoyama T, Taguchi F, et al. Nishio K. Establishment of a human non-small cell lung cancer cell line resistant to gefitinib [J]. Int J Cancer, 2005,116(1):36-44.
[15]  Rho JK, Choi YJ,Lee JK, et al. Epithelial to mesenchymal transition derived from repeated exposure to gefitinib determines the sensitivity to EGFR inhibitors in A549, a non-small cell lung cancer cell line [J].Lung Cancer,2009,63(2):219-226.

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