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中华诊断学电子杂志 ›› 2016, Vol. 04 ›› Issue (04) : 231 -235. doi: 10.3877/cma.j.issn.2095-655X.2016.04.004

所属专题: 文献

肿瘤诊治研究

聚乙二醇修饰的5-氟尿嘧啶磁性白蛋白微球联合恒定外磁场对体外人结肠癌细胞生长的抑制作用
刘建刚1,()   
  1. 1. 271016 泰安,泰山医学院临床学院
  • 收稿日期:2015-05-28 出版日期:2016-11-26
  • 通信作者: 刘建刚
  • 基金资助:
    山东省自然科学基金(ZR2010HL052)

The growing inhibition action of PEG modified magnetic 5-Fluorouracil albumin microspheres combined with constant external magnetic fields on human colon carcinoma LoVo cells in vitro

Jiangang Liu1,()   

  1. 1. Department of Clinical College, Taishan Medical College, Taian 271016, China
  • Received:2015-05-28 Published:2016-11-26
  • Corresponding author: Jiangang Liu
  • About author:
    Corresponding author: Liu Jiangang, Email:
引用本文:

刘建刚. 聚乙二醇修饰的5-氟尿嘧啶磁性白蛋白微球联合恒定外磁场对体外人结肠癌细胞生长的抑制作用[J]. 中华诊断学电子杂志, 2016, 04(04): 231-235.

Jiangang Liu. The growing inhibition action of PEG modified magnetic 5-Fluorouracil albumin microspheres combined with constant external magnetic fields on human colon carcinoma LoVo cells in vitro[J]. Chinese Journal of Diagnostics(Electronic Edition), 2016, 04(04): 231-235.

目的

探讨聚乙二醇修饰的磁性5-氟尿嘧啶白蛋白微球(PEG-5-FU-MAMS)联合恒定外磁场体外对人结肠癌(LoVo)细胞生长的抑制作用及其机制。

方法

采用乳化-加热固化法制备PEG-5-FU-MAMS,并检测其表征,将体外培养的LoVo细胞分为4组:A组为PEG-5-FU-MAMS联合磁场组;B组为PEG-5-FU-MAMS组;C组为游离5-氟尿嘧啶(5-FU)组;D组为单纯磁场组。参照5-FU血浆峰水平10.0 mg/L,每组设含5-FU水平为1.0,2.0,5.0,10.0,20.0,50.0,100.0 mg/L 7种不同的药物和微球备用。每种条件重复3孔,采用噻唑蓝(MTT)比色分析法测定各组肿瘤细胞生长抑制率(IR),观察PEG-5-FU-MAMS联合恒定磁场组对体外LoVo细胞生长的抑制作用。

结果

微球平均粒径为(1.32±0.50)μm,呈球形,表面光滑,载药量为(5.31±0.13)%,具有良好的磁响应性和缓释性。LoVo细胞培养24 h后,显微镜下各组肿瘤细胞完全贴壁,生长良好,折光性好。单纯磁场组体外对LoVo细胞生长无明显影响。经过不同的处理后,含5-FU浓度为20.0,50.0,100.0 mg/L时,B组和C组IR>50%,药物敏感,两组在相应药物浓度下IR相似,差异无统计学意义(q=2.02,2.11,2.74;P>0.05)。在含5-FU浓度为10.0 mg/L时,A组IR为59.8%,IR>50%,药物敏感,且随着药物浓度的增高,IR逐步升高,与B、C组比较,差异有统计学意义(F=62.09,66.74,56.62,66.13;P<0.05)。

结论

PEG-5-FU-MAMS具有良好的外形、粒径、载药量、磁响应性和药物缓释作用;PEG-5-FU-MAMS联合恒定外磁场能显著增强对LoVo细胞生长的抑制效应。

Objective

To investigate the growth inhibiting action of PEG modified magnetic 5-Fluorouracil albumin microspheres (PEG-5-FU-MAMS) combined with constant external magnetic fields on human colorectal carcinoma LoVo cells in vitro and the mechanism.

Methods

The PEG-5-FU-MAMS were prepared by emulsification/solidification method.The cultured LoVo cells were divided into four groups.Group A was processed with PEG-5-FU-MAMS combined with external magnetic fields, group B was PEG-5-FU-MAMS without magnetic fields, group C was free 5-FU, group D was pure magnetic field.The growth of LoVo cells was observed under an inverted microscopy, and the inhibitory rate (IR) was assayed by methyl thiazol tetrazolium (MTT) assay.

Results

The obtained microspheres (MS) were spherical and about (1.32±0.50)μm in size.The drug loading was (5.31±0.13)% and the MS had good magnetic responsibility.The release rate of 5-Fu in vitro showed that PEG-5-FU-MAMS had pronounced sustained-release effect.LoVo cells grew well and had good refraction after 24 h. Under the microscope, tumor cells were completely adherent.After different treatment, the tumor growth showed no difference on tumor cells in pure magnetic group.The IR of pure PEG-5-FU-MAMS group and free 5-FU group at same drug concentration were similar, there were no significant differences between them(q=2.02, 2.11, 2.74; P>0.05). Compared with pure PEG-5-FU-MAMS and free 5-FU group, when the concentration of 5-FU exceeded 10.0 mg/L, IR was significantly increased after PEG-5-FU-MAMS combined with constant external magnetic fields(F=62.09, 66.74, 56.62, 66.13; P<0.05).

Conclusions

PEG-5-FU-MAMS is characterized with good shape, particle size, drug loading, magnetic responsibility and drug release.The growth inhibiting action is significantly enhanced after PEG-5-FU-MAMS combined with constant external magnetic fields.

图1 各组结肠癌细胞经过不同时间培养后的光镜图像(MTT ×100)。A、B、C、D组经过不同处理,分别培养24 h,48 h,72 h,96 h(从左至右)结肠癌细胞的生长状态。a图示A组细胞随着曝磁时间的延长,贴壁细胞数量较其他组明显变少,悬浮死细胞很多,形态极不规则,折光性很差(箭头所示);b图、c 图示B组和C组细胞,随着药物浓度的增高,贴壁细胞数量逐渐变少,悬浮死细胞逐渐增多,形态异常,折光性差(箭头所示);d图示D组结肠癌细胞在不同时间点,细胞均贴满孔底,生长良好,形态正常,无明显抑制作用(箭头所示)。A组为磁性5-氟尿嘧啶白蛋白微球联合磁场组;B组为5-氟尿嘧啶白蛋白微球组;C组为游离5-氟尿嘧啶组;D组为单纯磁场组
表1 不同血浆5-氟尿嘧啶水平对人结肠癌细胞的抑制率(%,±s)
图2 血浆5-氟尿嘧啶浓度为20.0 mg/L时不同作用时间下各组对结肠癌细胞的细胞毒性。A组为磁性5-氟尿嘧啶白蛋白微球联合磁场组;B组为5-氟尿嘧啶白蛋白微球组;C组为游离5-氟尿嘧啶组;D组为单纯磁场组
[1]
刘建刚,刘志超,钱志勇, 等. 聚乙二醇修饰磁性5-氟尿嘧啶白蛋白微球的制备与表征[J]. 中华实验外科杂志, 2008, 25(1): 36-38.
[2]
陈薇,刘娟娟,罗艳. 磁场的细胞生物学效应不统一之现状分析[J]. 中国细胞生物学学报, 2014, 36(9): 1281-1288.
[3]
张皓楠,王益民,杨琳, 等. 永磁磁场对大鼠胰岛细胞的增殖、活性影响的实验研究[J]. 天津中医药, 2013, 30(11): 674-677.
[4]
刘志超,刘建刚,孔霞, 等. 两种5-氟尿嘧啶磁性白蛋白微球对肝脏靶向性的研究[J]. 中国现代普通外科进展, 2010, 13(8): 594-596.
[5]
王文,蔡锦方,曹学成, 等. 外部磁场介导下万古霉素磁性微球靶向治疗大鼠骨感染[J]. 中国组织工程研究与临床康复, 2010, 14(38): 7108-7111.
[6]
崔敬敬,金光玉,夏雷, 等. 超顺磁性氧化铁纳米粒在磁共振成像和药物传递系统中的应用[J]. 国际药学研究杂志, 2015, 42(5): 601-605.
[7]
Lee PW,Hsu SH,Wang JJ, et al.The characteristics, biodistribution, magnetic resonance imaging and biodegradability of superparamagnetic core-shell nanoparticles [J]. Biomaterials, 2010, 31(6): 1316-1324.
[8]
Zhang Y,Yang M,Park JH, et al.A surface-charge study on cellular-ptake behavior of F3-peptide-conjugated iron oxide nanoparticles[J]. Small, 2009, 5(17): 1990-1996.
[9]
刘建刚,乔森,袁常秀, 等.5-氟尿嘧啶磁性白蛋白微球对离体牛肝脏射频消融增效作用的研究[J]. 中华诊断学电子杂志, 2014, 2(3): 202-205.
[10]
张小云,张晓鄂. 恒定磁场对细胞生长分裂的影响[J]. 科学通报, 1989, 34(24): 1901-1904.
[11]
孙诚谊,俞超,刘建刚, 等.5-氟尿嘧啶磁性微球的制备及对人胰腺癌细胞的抑制作用[J]. 中华消化外科杂志, 2007, 6(4): 263-265.
[12]
张静,孙润广,齐浩, 等. 脂肪酸甲胺铂配合物的结构表征及磁场对其抗癌活性的影响[J]. 化学学报, 2000, 58(6): 704-712.
[13]
Cui G,Zhou D, et al.The primary study of the method using heating in rabbits’ brain tissue[J]. Acta Academiae Medicine Suzhou, 1997, 17(3): 403-404.
[14]
顾宁,李洋. 纳米颗粒对细胞膜的作用[J]. 生物物理学报, 2010, 26(8): 623-637.
[15]
Bothun GD.Hydrophobic silver nanoparticles trapped in lipid bilayers:Size distribution, bilayer phase behavior, and optical properties[J]. J Nanobiotechnology, 2008, 6(1): 13.
[16]
Hinderliter A,Biltonen RL,Almeida PFF.Lipid modulation of protein-induced membrane domains as a mechanism for controlling signal transduction[J]. Biochemistry, 2004, 43(22): 7102-7110.
[17]
May S. Theories on structural perturbations of lipid bilayers[J]. Curr Opin Colloid Interface Sci, 2000, 5(3-4): 244-249.
[18]
Xing CY,Ollila OHS,Vattulainen I, et al.Asymmetric nature of lateral pressure profiles in supported lipid membranes and its implications for membrane protein functions[J]. Soft Matter, 2009, 5(17): 3258-3261.
[19]
Ollila OHS,Risselada H,Louhivuori M, et al.3D pressure field in lipid membranes and membrane-protein complexes[J]. Phys Rev Lett, 2009, 102(7): 078101.
[20]
Qiao R,Roberts AP,Mount AS, et al.Translocation of C60 and its derivatives across a lipid bilayer[J]. Nano Lett, 2007, 7(3): 614-619.
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