Polynucleotide complexes are stabilized by adding a cryoprotectant compound and lyophilizing the resulting formulation. The lyophilized formulations are milled or sieved into a dry powder formulation which may be used to deliver the polynucleotide complex. Delivery of the polynucleotide to a desired cell tissue is accomplished by contacting the tissue with the powder to rehydrate it. In a preferred embodiment, a dry powder formulation is used to induce genetic modification of a patient's lung tissue.
聚
核苷酸复合物通过添加一种抗冻保护剂并对所得的配方进行冻干处理来稳定。冻干配方经过研磨或筛选成为干粉配方,可用于传递聚
核苷酸复合物。将聚
核苷酸传递到所需细胞组织的方法是通过将粉末与组织接触以重新
水合。在一个首选实施例中,使用干粉配方来诱导患者肺组织的
基因修饰。