PELGE空白纳米粒对Chang细胞c-fos、c-myc、p53基因表达的影响
Evaluation of the biological response of Chang cells to PELGE nanoparticles: study on c-fos,c-myc,and p53 mRNA expression
作者:何黎黎;杨立开;邓黎;孙逊;龚涛;张志荣;
Author:
收稿日期: 年卷(期)页码:2010,25(06):-705-708
期刊名称:华西药学杂志
Journal Name:WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES
关键字:PELGE材料;空白纳米粒;实时荧光定量;原癌基因;抑癌基因
Key words:
基金项目:
中文摘要
目的考察PELGE空白纳米粒对Chang细胞原癌基因、抑癌基因表达量的影响,筛选生物相容性好、低毒的载体材料,探索纳米粒可能存在的致癌性。方法采用实时荧光定量PCR(Real-time PCR)技术,用荧光标记寡聚核苷酸,Tagman探针法测定与PLEGE和PLGA空白纳米粒共培养的Chang氏细胞,以管家基因β-actin为内参基因,测定了抑癌基因p53及原癌基因c-myc、c-fos表达量的变化。结果 9种空白PELGE纳米粒中,1号材料(PEG 550,5%,LA/GA=7:3)、7号材料(PEG 750,5%,LA/GA=7:3)的3种基因表达水平均较低,相对于空白对照无显著差异。结论 1、7号材料性质惰性,不会导致细胞出现原癌基因、抑癌基因表达量的明显变化,说明其生物相容性良好,无潜在的致癌性。
参考文献
[1]段友容,张志荣,唐永刚,等.mPEG-PLGA-mPEG纳米粒的体外降解规律的研究[J].生物医学工程学杂志,2004,21(6):921-925.
[2]He LL,Yang LK,Duan YR,et al.Cytotoxicity and hemocompati-bility of a family of novel MeO-PEG-Poly(D,L-lactic-co-glycolic acid)-PEG-OMe triblock copolymer nanoparticles[J].J Appl Polym Sci,2009,113:2933-2944.
[3]He LL,Yang LK,Zhang ZR,et al.In vitroevaluation of the geno-toxicity of a family of novel MeO-PEG-poly(D,L-lactic-co-glycolic acid)-PEG-OMe triblock copolymer and PLGAnanoparticles[J].Nanotechnology,2009,20:455102.
[4]Chou L.Molecular blot compatibility[J].J Dent Res,1995,74:190-193.
[5]戴建国.生物材料生物相容性的分子生物学研究进展[J].国外医学生物医学工程分册,2004,27(6):360-364.
[6]刘庆辉,詹宏昌,易光旺,等.对纳米医学材料安全性问题的思考[J].中国安全科学学报,2008,1(3):114-117.
[7]Nel A,Xia T,Madler L,et al.Toxic potential of materials at thenanolevel[J].Science,2006,311:623-627.
[8]熊玲,奚廷斐,蒋学华,等.纳米特性引发的生物效应及其纳米生物材料安全性评价[J].中国临床康复,2006,10(45):66-68.
[9]杨立开,何黎黎,段友容,等.mPEG-PLGA-mPEGA系列纳米粒的毒性与其结构的关系[J].华西药学杂志,2009,24(3):211-214.
[10]Felsher DW,Bishop JM.Transient excess of MYC activity can e-licit genomic instability and tumorigenesis[J].Proc Natl AcadSci USA,1999,96:3940-3944.
[11]Nisson JA,Cleveland L.Myc pathways provoking cell suicide andcancer[J].Oncogene,2003,(22):9007-9021.
[12]LuoY,Krause MO.Changes in promoter utilization in human andmouse c-myc genes upon transformation induction in tempera-ture-sensitive cell lines[J].J Cell Physiol,1994,160(2):303-315.
[13]Boxer LM,Dang CV.Translocations involving c-myc and c-myc function[J].Oncogene,2001,20(40):5595-5610.
[14]Levin WJ,Press MF,Gaynor RB,et al.Expresion paterns of im-mediate early transcription factors in human non-small cell lungcancer.The lung cancer study group[J].Oncogene,1995,11(7):1261-1269.
[15]姜艰,童坦君.Fos与jun癌基因产物的结构特点及其转录调控作用的研究进展[J].生物化与生物物理进展,1992,19(4):254-258
[16]Shinya K,Takami A,Kazuhisa S,et al.Evaluation of biologicalresponses to polymeric biomaterials by RT-PCR analysis IV:study of c-myc,c-fos and p53 mRNA expression[J].Bioma-terials,2000,21:521-527.
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