1. 广东海洋大学水产学院,广东,湛江,524025
2.
3. 中山大学生命科学学院∥有害生物控制与资源利用国家重点实验室,广东,广州,510275
纸质出版日期:2011,
网络出版日期:2011-1-25,
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夏立群, 张红莲, 梁海鹰, 等. RNA干扰技术抑制SGIV ICP18绿色荧光融合蛋白表达的研究[J]. 中山大学学报(自然科学版)(中英文), 2011,50(1):110-114.
XIA Liqun, ZHANG Honglian, LIANG Haiying, et al. The Inhibition of Expression of SGIV ICP18GFP in FHM Cell by RNA Interferencing[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2011,50(1):110-114.
夏立群, 张红莲, 梁海鹰, 等. RNA干扰技术抑制SGIV ICP18绿色荧光融合蛋白表达的研究[J]. 中山大学学报(自然科学版)(中英文), 2011,50(1):110-114. DOI:
XIA Liqun, ZHANG Honglian, LIANG Haiying, et al. The Inhibition of Expression of SGIV ICP18GFP in FHM Cell by RNA Interferencing[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2011,50(1):110-114. DOI:
将含有新加坡石斑鱼虹彩病毒(Singapore grouper iridovirus,SGIV)ICP18基因的真核表达载体pEGFP-ICP18转染到胖头鲤细胞(Fathead minnow cells,FHM)中进行融合表达,用荧光显微镜观察到ICP18GFP融合蛋白呈点状分布于FHM细胞的细胞质中。根据SGIV ICP18的序列,设计并体外化学合成了特异性干扰SGIV ICP18的siRNA(siRNAICP18),与pEGFPICP18共转染到FHM细胞中,通过荧光显微镜观察不同时间点的荧光强度变化。与序列非特异性siRNA(siRNAnegative)阴性对照相比,转染后24~48 h,共转染siRNAICP18和pEGFPICP18的实验细胞中发荧光的细胞数量较阴性对照少60%~80%左右,说明体外化学合成的siRNA-ICP18可有效抑制FHM细胞中外源导入SGIV ICP18基因的表达。
Singapore grouper iridovirus (SGIV) is a major pathogen resulting in heavy economic losses to grouper aquaculture. In this study
recombant eukaryotic vector pEGFPICP18 which inserted with SGIV ICP18 gene was transfected into Fathead minnow (FHM) cells
and ICP18GFP fusion protein was successfully expressed in FHM cells with a finely punctate cytoplasmic pattern. Candidate siRNA targeting SGIV ICP18 gene (siRNAICP18) was designed and chemically synthesized.To investigate the inhibition effect of siRNAICP18
pEGFPICP18 and siRNA were cotransfected into FHM cells
and the green fluorescence was observed by fluorescence microscope after transfection. The green fluorescence in FHM cells cotransfected with pEGFPICP18 and siRNAICP18 were 60%~80% fewer than that of negative control
which show the siRNAICP18 can effectively silence the extrinsic SGIV ICP18 gene in FHM cells during 24~48 h after transfection.
RNA干扰绿色荧光蛋白石斑鱼虹彩病毒SGIVICP18
RNA interferencegreen fluorescent proteinsingapore grouper iridovirus (SGIV)ICP18
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