摘要
目的:摸索逆转录病毒介导的理想的造血细胞基因转染体系.方法:以人多药耐药基因1(mdr-1)及增强型绿色荧光蛋白基因(EGFP)为报告基因,比较了小鼠骨髓细胞与病毒包装细胞共培养、与骨髓基质细胞系TC-l共培养及单纯上清感染等不同体系的转染效率.结果:与单纯上清转染法相比,TC-1基质细胞可明显提高外源基因的转染效率.3组中,以与病毒包装细胞共培养组转染效率最高.结论:骨髓基质细胞介导基因转染的方法,既可促进靶基因的转染效率,又可避免重组辅助病毒引起的感染,具有较好的临床应用前景.
Objective: To investigate the optimal gene transfer protocols of hematopoietic cells mediated by retrovirus. Methods: Murine bone marrow cells were infected by co-culture with murine bone marrow stromal cell line TC-1 or retro-virus packaging cells or retrovirus supernatant. Human mdr-1 and enhanced green fluorescent protein (EGFP) were used as report genes. Results: Stromal cells could greatly increase the gene transfer efficiency when compared with that of supernatant transfection. Transduction efficiency was highest when infected BM cells were co-cultured with virus producer cells. Conculsion: It may be clinically feasible in gene therapy to perform retroviral transduction by co-culture of target cells with stromal cells or cell lines.
出处
《中国肿瘤生物治疗杂志》
CAS
CSCD
1999年第4期277-279,共3页
Chinese Journal of Cancer Biotherapy
