目的:建立能表達(dá)乙肝病毒(hepatitis B virus,HBV)preS2S抗原蛋白的荷瘤小鼠模型,為研究HBV核酸疫苗的體內(nèi)CTL應(yīng)答及免疫治療作用提供簡(jiǎn)便易行的研究模型。 方法:以免疫印跡法驗(yàn)證SP2/0-S2S細(xì)胞中有HBV preS2S抗原的穩(wěn)定表達(dá),將SP2/0-S2S細(xì)胞種植到BALB/c小鼠脅部皮下(荷瘤),觀察能否生長(zhǎng)成瘤,以及成瘤的時(shí)間、腫瘤大小和荷瘤后小鼠的生存時(shí)間;以免疫組織化學(xué)法檢測(cè)小鼠腫瘤組織HBV preS2S抗原的表達(dá)。以不表達(dá)preS2S抗原蛋白的SP2/0-CMV細(xì)胞荷瘤小鼠作為陰性對(duì)照。結(jié)果:荷瘤后3天~1周,SP2/0-S2S細(xì)胞可在小鼠皮下形成實(shí)體腫瘤,成瘤率為100%,腫瘤細(xì)胞中有preS2S抗原表達(dá),荷瘤后小鼠的平均生存時(shí)間為16±1天;與不表達(dá)preS2S抗原蛋白的SP2/0-CMV細(xì)胞荷瘤小鼠相比,成瘤率、成瘤時(shí)間、腫瘤大小及生存時(shí)間差異。結(jié)論:建立了能表達(dá)HBV preS2S抗原蛋白的荷瘤小鼠模型,可用于HBV核酸疫苗的體內(nèi)CTL應(yīng)答及免疫治療作用的實(shí)驗(yàn)研究。同時(shí)也建立了不表達(dá)preS2S抗原蛋白的荷瘤小鼠模型,可用作陰性對(duì)照。
引用本文: 何芳,唐紅,劉麗,劉聰,趙連三. 表達(dá)乙肝病毒preS2S蛋白的荷瘤小鼠模型的建立. 華西醫(yī)學(xué), 2008, 23(1): 96-98. doi: 復(fù)制
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