Efficient and safe gene vectors are important for gene therapy. Here, a novel family of amphiphilic polyethylenimine (PEI) LD1-PEI bearing a polar group of branched PEI 25K and four dodecyl chains was developed. Agarose gel electrophoresis was used to confirm the formation of complexes. The transfection activity of the amphiphilic carrier was evaluated in different cell lines. The in vitro study showed that LD1-PEI showed a higher transfection efficiency with improved biocompatibility than PEI 25K. Serum showed almost no or only a slight effect on LD1-PEI/DNA transfection efficiency. In summary, LD1-PEI is a promising nonviral gene carrier.
高效且安全的
基因载体对
基因治疗至关重要。在这里,开发了一种新型的两亲聚
乙烯亚胺(PEI)载体LD1-PEI,该载体具有带有极性基团的支链PEI 25K和四个
十二烷基链。通过
琼脂糖凝胶电泳确认了复合物的形成。评估了该两亲载体在不同
细胞系中的转染活性。体外研究表明,LD1-PEI的转染效率高于PEI 25K,并且
生物相容性得到了改善。血清对LD1-PEI/DNA转染效率几乎没有影响,或仅有轻微影响。总之,LD1-PEI是一种有前途的非病毒
基因载体。