申请人:Gilead Sciences, Inc.
公开号:US05633360A1
公开(公告)日:1997-05-27
Oligonucleotides that are capable of passive diffusion across cell membranes are disclosed. These oligonucleotides contain at least two nucleotide residues and show a log distribution coefficient in octanol:water of about 0.0-2.5 and a solubility in water of at least 0.001 .mu.g/mL. In preferred embodiments, either at least 80% of the internucleotide linkages are non-ionic, or at least 80% of the bases contain lipophilic hydrocarbyl substitutions, or a combination of these sums to 80%. These oligonucleotides may be conjugated to label and used to visualize cells.
本文披露了能够通过细胞膜进行被动扩散的寡核苷酸。这些寡核苷酸含有至少两个核苷酸残基,其在辛醇:水中的对数分布系数为约0.0-2.5,在水中的溶解度至少为0.001 μg/mL。在优选实施例中,要么至少80%的核苷酸间连接是非离子的,要么至少80%的碱基含有亲脂性烃基取代,或者两者的组合总和达到80%。这些寡核苷酸可以与标记结合并用于可视化细胞。