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1、論著中國(guó)醫(yī)藥導(dǎo)報(bào)2015年2月第12卷第4期生長(zhǎng)抑制因子5抑制肺癌細(xì)胞增殖作用的研究張旭濤孟瑾張峰1.第四軍醫(yī)大學(xué)藥學(xué)院藥理學(xué)教研室,陜西西安710032;2.解放軍309醫(yī)院藥劑科,北京100091【摘要】目的探討生長(zhǎng)抑制因子5(ING5)抑制肺癌細(xì)胞增殖的作用。方法采用慢病毒介導(dǎo)的基因轉(zhuǎn)染方法建立A549細(xì)胞ING5高表達(dá)細(xì)胞系A(chǔ)549一ING5一OE和A549細(xì)胞空質(zhì)粒對(duì)照細(xì)胞系A(chǔ)549一control。采用細(xì)胞增殖實(shí)驗(yàn)和克隆形成實(shí)驗(yàn)觀察1NG5過表達(dá)對(duì)肺癌A549細(xì)胞增殖能力的影響;采用皮下接種方法建立裸鼠皮下移植瘤模型.觀察ING5對(duì)
2、裸鼠皮下成瘤能力及腫瘤體積大小的影響。結(jié)果本實(shí)驗(yàn)成功構(gòu)建了肺癌A549一ING5過表達(dá)細(xì)胞系,與A549一control比較,細(xì)胞系A(chǔ)549一ING5一OE中ING5表達(dá)顯著增高;增殖實(shí)驗(yàn)結(jié)果顯示ING5高表達(dá)顯著抑制了肺癌細(xì)胞的增殖能力;克隆形成實(shí)驗(yàn)結(jié)果顯示細(xì)胞系A(chǔ)549一ING5一OE中ING5高表達(dá)的肺癌細(xì)胞克隆形成能力明顯低于A549一control肺癌細(xì)胞(P<0.01);裸鼠在體水平研究結(jié)果顯示ING5高表達(dá)可以抑制裸鼠皮下成瘤及移植瘤的生長(zhǎng)。結(jié)論ING5可以抑制肺癌細(xì)胞的增殖,為臨床治療肺癌提供新的治療靶點(diǎn)。[關(guān)鍵詞]肺癌細(xì)胞;生
3、長(zhǎng)抑制因子5;增殖;克隆形成;裸鼠成瘤[中圖分類號(hào)】R734【文獻(xiàn)標(biāo)識(shí)碼】A[文章編號(hào)】1673—721o(2ol5)02(a)一0004-04Studyoftheantiproliferativeefectsofinhibitorofgrowth5onlungcan—cercellsZHANGXutaolMENGJin2ZHANGFeng1.DepartmentofPharmacology,SchoolofPharmacy,theFouahMilitaryMedicalUniversity,ShaanxiProvince,Xi'an71003
4、2,China;2.DepartmentofPharmacy,the309thHospitalofPLA,Beijing100091,China【Abstract]ObjectiveTostudytheantiproliferativeeffectsofinhihitiorofgrowth5(ING5)onlungcancerA549ceils.MethodsING5genetransferwasmediatedbylentivirusestoestablishING5overexpressioncelllineA549-ING5-OEandt
5、hecorrespondingcontrolcelllineA549-contro1.Proliferationassayandcolonyformationassaywereusedtoob—servetheefectsofING5over-expressionontheproliferationcapacityoflungcancercells.MousexenograftmodelswereestablishedwithA549ING5over-expressioncellsandA549一controlceilsbysubcutaneo
6、usinjection.ResultsTheING5over—expressioncelllineA549-ING5一OEandA549一controlcelllinewereestablished.ING5over-expressioninhibitedproliferationandcolonyformationabilityofA549cellsfP7、owth.ConclusionING5over-expressionCaninhibitproliferationoflungcancerA549cells,andprovideanewtherapeutictargetfortheclinicaltreatmentoflungcancer.【Keywords】Lungcancercells;Inhibitorofgrowth5;Proliferation;Colonyformation;Nudemicexenografts肺癌的發(fā)生是個(gè)涉及多基因改變的復(fù)雜過程,其同的作用,ING蛋白參與磷脂酰
8、肌醇介導(dǎo)的脂類信號(hào)中癌基因的激活和抑癌基因的失活是兩大關(guān)鍵要素。通路及激素介導(dǎo)的通路,抑制細(xì)胞生長(zhǎng),誘導(dǎo)細(xì)胞凋生長(zhǎng)抑制因子(inhibitorofgr