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《SiRNA干擾結(jié)腸癌轉(zhuǎn)移相關(guān)基因1表達對卵巢癌順鉑化療耐藥性的影響-論文.pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、腫瘤2014年1月第34卷第1期TUMORVo1.34,January2014WWW.tumorsci.org7DOI:10.3781~.issn.1000—7431.2014.01.002Copyright~2014byTUMOR基礎研究·BasicResearchSiRNA干擾結(jié)腸癌轉(zhuǎn)移相關(guān)基因1表達對卵巢癌順鉑化療耐藥性的影響李霞,史惠蓉,鄧佑興,張瑞濤鄭州大學第一附屬醫(yī)院婦產(chǎn)科,河南鄭州450052【摘要】目的:利用RNA干擾技術(shù)抑制結(jié)腸癌轉(zhuǎn)移相關(guān)基因1(metastasis—associatedincoloncancer1,MACC1
2、)在順鉑(cisplatin,DDP)耐藥的卵巢癌細胞株SKOV-3/DDP中的表達,并探討其對DDP化療耐藥性的影響。方法:RNA干擾分為3組,空白對照組為未經(jīng)處理的SKov-3/DDP細胞,陰性對照組為空質(zhì)粒轉(zhuǎn)染的SKov.3/DDP—shVector細胞,實驗組為MACC1一shRNA重組質(zhì)粒轉(zhuǎn)染的SKov_3/DDP—shMACC1細胞。反轉(zhuǎn)錄PCR法和蛋白質(zhì)印跡法檢測穩(wěn)定轉(zhuǎn)染后SKov_3/DDP細胞中MACC1mRNA和蛋白的表達情況,MTT法檢測細胞對DDP的耐藥性變化,F(xiàn)CM法檢測細胞凋亡變化。結(jié)果:相比于未轉(zhuǎn)染組SKOv_3/
3、DDP細胞,MACC1一shRNA轉(zhuǎn)染組SKOV-3/DDP—shMACC1細胞中MACC1的mRNA及蛋白水平均明顯下調(diào)『下調(diào)百分率分別為(83.39±1.26)%和(82.25±2.94)%,P<0.05]。DDP對SKov_3/DDP—shMACC1細胞的半數(shù)抑制濃度(halfinhibitoryconcentration,IC。)值與未轉(zhuǎn)染組和空質(zhì)粒轉(zhuǎn)染組細胞的IC。值比較,均明顯降低[(26.09±0.91)gmol/Lvs(47.5O±0.40)gmol/L和(47.O8±0.45)gmol/L,P<0.051。SKOV-3/DDP
4、—shMACC1細胞凋亡率明顯提高[(13.77±0.60)%vs(3.63±0.30)%和(4.23±0.30)%,P<0.05]。結(jié)論:RNA干擾抑制MACC1基因表達能增強卵巢癌耐藥細胞SKo3/DDP對DDP的敏感性?!娟P(guān)鍵詞]卵巢腫瘤;RNA干擾;抗藥性,腫瘤;順鉑;結(jié)腸癌轉(zhuǎn)移相關(guān)基因1【中圖分類號】R737.31【文獻標志碼】A【文章編號】1000—7431(2014)01—0007—06EffectofsiRNAtargetingMACClgeneonchemoresistancetocisplatininovariancance
5、rLlXia。SHIHui—rOng,DENGYou—xing,ZHANGRui—taoDepartmentofGynecologyandObstetrics,F(xiàn)irstAffiIiatedHospitalofZhengzhouUniversity,Zhengzhou45O052,HenanProvince,China【ABSTR0~CT]0bjective:Toknockdowntheexpressionofmetastasis—associatedincoloncancer~1(MACC1)geneindrug—resistantovari
6、ancancercelIIineSKOV3/cisplatin(DDP)byRNAinterferencetechnology.a(chǎn)ndtoinvestigateitseffectonchemoresistancetoDDP.Methods:0variancancerSKOV3/DDPcellswerenottransfected(blankgrouP,namedasSKOV3/DDPcells),ortransfectedwithemptyplasmid(negativecontrolgrouP,namedasSKOV一3/DDP—shVect
7、orceIls)orcombinantPlasmidcontainingMACC1specificsmaIlhairpinRNA(shRNA)(experimentaIgrouP,namedasSKOV一3/DDP—shMACC1cells).ThemRNAandProteinexPressionsofMACC1weredetectedbyreversetranscription—PCR(RT—PCR)andWesternblotting,respectively.Thehalfinhibitionconcentration(IC50)ofDD
8、PwasdeterminedbyMTTassay.Theapoptosiswasexaminedbyflowcyometry.Results:Afte