Pharmacophoric modifications lead to superpotent αvβ3 integrin ligands with suppressed α5β1 activity.

Pharmacophoric modifications lead to superpotent αvβ3 integrin ligands with suppressed α5β1 activity.
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药效修饰导致超强 αvβ3 整合素配体,抑制 α5β1 活性

DOI:
10.1021/jm500092w
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发表时间:
2014
影响因子:
7.3
通讯作者:
H. Kessler
H. Kessler
中科院分区:
医学1区
文献类型:
--
作者:
S. Neubauer;F. Rechenmacher;R. Brimioulle;F. Saverio Di Leva;A. Bochen;T. R. Sobahi;M. Schottelius;E. Novellino;C. Mas-Moruno;L. Marinelli;H. Kessler

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在不影响结构密切相关的受体α5β1的情况下选择性靶向αvβ3整合素亚型对于了解其生物学和病理功能的细节至关重要,因此对于癌症治疗中的诊断和治疗方法具有重要意义。在这里,我们提出了针对 αvβ3 整合素的高活性 RGD 肽模拟物的合成,对 α5β1 具有显着的选择性。将甲氧基吡啶结构单元掺入配体支架中以及不同功能部分的变化导致低纳摩尔甚至亚纳摩尔范围内的αvβ3拮抗活性。此外,还进行了对接研究,以深入了解新型化合物的结合模式。所提出的库包含用于特异性寻址和阻断 αvβ3 整合素亚型的强大配体,从而代表了基于整合素的个性化医疗的特权工具。
The selective targeting of the αvβ3 integrin subtype without affecting the structurally closely related receptor α5β1 is crucial for understanding the details of their biological and pathological functions and thus of great relevance for diagnostic and therapeutic approaches in cancer treatment. Here, we present the synthesis of highly active RGD peptidomimetics for the αvβ3 integrin with remarkable selectivity against α5β1. Incorporation of a methoxypyridine building block into a ligand scaffold and variation of different functional moieties led to αvβ3-antagonistic activities in the low nanomolar or even subnanomolar range. Furthermore, docking studies were performed to give insights into the binding modes of the novel compounds. The presented library comprises powerful ligands for specific addressing and blocking of the αvβ3 integrin subtype, thereby representing privileged tools for integrin-based personalized medicine.
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