Programmable multivalent display of receptor ligands using peptide nucleic acid nanoscaffolds.
Programmable multivalent display of receptor ligands using peptide nucleic acid nanoscaffolds.
复制标题
DOI:
10.1038/ncomms1629
复制
发表时间:
2012-01-10
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Multivalent effects dictate the binding affinity of multiple ligands on one molecular entity to receptors. Integrins are receptors that mediate cell attachment through multivalent binding to peptide sequences within the extracellular matrix, and overexpression promotes the metastasis of some cancers. Multivalent display of integrin antagonists enhances their efficacy, but current scaffolds have limited ranges and precision for the display of ligands. Here we present an approach to study multivalent effects across wide ranges of ligand number, density, and three-dimensional arrangement. Using L-lysine γ-substituted peptide nucleic acids, the multivalent effects of an integrin antagonist were examined over a range of 1 to 45 ligands. The optimal construct improves the inhibitory activity of the antagonist by two orders of magnitude against the binding of melanoma cells to the extracellular matrix in both in vitro and in vivo models.
登录
查看更多内容
影响因子:
4.7
作者:
Chakraborty, Sudipta;Shi, Jiyun;Kim, Young-Seung;Zhou, Yang;Jia, Bing;Wang, Fan;Liu, Shuang
通讯作者:
Liu, Shuang
影响因子:
2.8
作者:
Mas-Moruno C;Rechenmacher F;Kessler H
通讯作者:
Kessler H
影响因子:
64.8
作者:
Douglas, Shawn M.;Dietz, Hendrik;Liedl, Tim;Hoegberg, Bjoern;Graf, Franziska;Shih, William M.
通讯作者:
Shih, William M.
影响因子:
4.7
作者:
Kok, RJ;Schraa, AJ;Molema, G
通讯作者:
Molema, G
影响因子:
7.3
作者:
Montet, Xavier;Funovics, Martin;Josephson, Lee
通讯作者:
Josephson, Lee