Synthesis and Application of the First Radioligand Targeting the Allosteric Binding Pocket of Chemokine Receptor CXCR3
Synthesis and Application of the First Radioligand Targeting the Allosteric Binding Pocket of Chemokine Receptor CXCR3
复制标题
第一个靶向趋化因子受体CXCR3变构结合袋的放射性配体的合成及应用
DOI:
10.1002/cmdc.201200184
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发表时间:
2012
期刊:
影响因子:
3.4
通讯作者:
Tschammer
中科院分区:
文献类型:
--
作者:
Bernat;Heinrich;Baumeister;Buschauer;Tschammer
Strategies for the identification of allosteric modulators of chemokine receptors largely rely on various cell‐based functional assays. Radioligand binding assays are typically not available for allosteric binding sites. We synthesized, purified, and applied the first tritium‐labeled allosteric modulator of the human chemokine receptor CXCR3 (RAMX3, [3H]N‐{1‐[3‐(4‐ethoxyphenyl)‐4‐oxo‐3,4‐dihydropyrido[2,3‐d]pyrimidin‐2‐yl]ethyl}‐2‐[4‐fluoro‐3‐(trifluoromethyl)phenyl]‐N‐[(1‐methylpiperidin‐4‐yl)methyl]acetamide). RAMX3 is chemically derived from 8‐azaquinazolinone‐type allosteric modulators and binds to the CXCR3 receptor with aKdvalue of 1.08 nM(specific activity: 80.4 Ci mmol−1). Radioligand displacement assays showed potent negative cooperativity between RAMX3 and chemokine CXCL11, providing a basis for the use of RAMX3 to investigate other potential allosteric modulators. Additionally, the synthesis and characterization of a number of other full and truncated 8‐azaquinazoline analogues were used to validate the binding properties of RAMX3. We demonstrate that RAMX3 can be efficiently used to facilitate the discovery and characterization of small molecules as allosteric modulators of the CXCR3 receptor.
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影响因子:
--
作者:
T. Kenakin
通讯作者:
T. Kenakin
影响因子:
8
作者:
Kawada, K.;Hosogi, H.;Taketo, M. M.
通讯作者:
Taketo, M. M.
影响因子:
5.1
作者:
S. Storelli;D. Verzijl;Jawad Al;N. Elders;Leontien Bosch;H. Timmerman;M. Smit;I. D. de Esch;R. Leurs
通讯作者:
R. Leurs
影响因子:
3.6
作者:
Johann Chan;B. Burke;Kyle D. Baucom;K. Hansen;M. Bio;E. Divirgilio;M. Faul;J. Murry
通讯作者:
J. Murry
影响因子:
2.7
作者:
S. Storelli;Pauline Verdijk;D. Verzijl;H. Timmerman;A. van de Stolpe;C. Tensen;M. Smit;I. D. de Esch;R. Leurs
通讯作者:
R. Leurs