Bals R, Xiao W, Sang N, Weiner D J, Meegalla R L, Wilson J M
Departments of Medicine and Molecular and Cellular Engineering, Institute for Human Gene Therapy, and The Wistar Institute, Philadelphia, Pennsylvania 19104, USA.
J Virol. 1999 Jul;73(7):6085-8. doi: 10.1128/JVI.73.7.6085-6088.1999.
The limitations of adeno-associated virus (AAV)-mediated vectors for lung-directed gene transfer were investigated by using differentiated human respiratory epithelium in air-liquid interface cultures. Transduction efficiency was high in undifferentiated cells and was enhanced in well-differentiated cells after basolateral application of the vector or after apical application following disruption of tight junctions or pretreatment of the cultures with glycosidases. These results indicate that transduction of airway epithelia by AAV vectors is limited by entry and reinforce the importance of a physical barrier on the airway surface.
通过在气液界面培养中使用分化的人呼吸道上皮细胞,研究了腺相关病毒(AAV)介导的载体用于肺定向基因转移的局限性。在未分化细胞中,转导效率很高;在载体从基底外侧应用后,或在紧密连接破坏后从顶端应用载体,或用糖苷酶预处理培养物后,在分化良好的细胞中转导效率会提高。这些结果表明,AAV载体对气道上皮细胞的转导受进入限制,并强化了气道表面物理屏障的重要性。