Described are recombinant adenoviral vectors retaining sufficient E4 sequences to improve the expression and/or persistence of expression of a gene of interest. Furthermore, the invention describes the use of a polynucleotide encoding one or more ORF(s) of the E4 region of an adenovirus selected from ORF1, ORF2, ORF3, ORF4, ORF3/4, ORF6/7, ORF6 and ORF7 taken individually or in combination, to improve the expression and/or persistence of expression of a gene of interest operably linked to regulatory elements and inserted into an expression vector. Finally, a host cell, a composition, an infectious viral particle comprising such a polynucleotide or adenoviral vector, a method for preparing said viral particle as well as their therapeutic use are described.
本发明描述的
重组腺病毒载体保留了足够的 E4 序列,以提高相关
基因的表达和/或表达的持久性。此外,本发明还描述了一种多核苷酸的用途,该多核苷酸编码选自 ORF1、ORF2、ORF3、ORF4、ORF3/4、ORF6/7、ORF6 和 ORF7 的腺病毒 E4 区的一个或多个 ORF,可单独或组合使用,以改善与调控元件可操作连接并插入表达载体的相关
基因的表达和/或持续表达。最后,还介绍了一种宿主细胞、一种组合物、一种包含这种多核苷酸或腺病毒载体的传染性病毒颗粒、一种制备所述病毒颗粒的方法以及它们的治疗用途。