- 专利标题: METHODS AND COMPOSITIONS FOR NUCLEIC ACID AND PROTEIN PAYLOAD DELIVERY
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申请号: US15842820申请日: 2017-12-14
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公开(公告)号: US20180161447A1公开(公告)日: 2018-06-14
- 发明人: Andre Ronald Watson , Christian Foster
- 申请人: Ligandal, Inc.
- 主分类号: A61K47/68
- IPC分类号: A61K47/68 ; A61K48/00 ; A61K47/54 ; A61K47/42 ; A61K31/7105 ; A61K31/40
摘要:
Provided are methods and compositions for delivering a nucleic acid, protein, and/or ribonucleoprotein payload to a cell. Also provided are delivery molecules that include a peptide targeting ligand conjugated to a protein or nucleic acid payload (e.g., an siRNA molecule), or conjugated to a charged polymer polypeptide domain (e.g., poly-arginine such as 9R or a poly-histidine such as 6H, and the like). The targeting ligand provides for (i) targeted binding to a cell surface protein, and (ii) engagement of a long endosomal recycling pathway. As such, when the targeting ligand engages the intended cell surface protein, the delivery molecule enters the cell (e.g., via endocytosis) but is preferentially directed away from the lysosomal degradation pathway.
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