Abstract:
:The CXC chemokine receptor 7 (CXCR7)/ACKR3 is a chemokine receptor that recognizes stromal cell-derived factor 1 (SDF-1)/CXCL12 and interferon-inducible T-cell α chemoattractant (I-TAC)/CXCL11. Here, we report the development of novel CXCR7-selective ligands with a cyclic pentapeptide scaffold through an SAR study of CXC chemokine receptor 4 (CXCR4) selective antagonist FC131 [cyclo(-d-Tyr-l-Arg-l-Arg-l-Nal-Gly-), Nal = 3-(2-naphthyl)alanine]. Substitution of Gly with l-Pro switched the receptor preference of the peptides from CXCR4 to CXCR7. The SAR study led to the identification of a potent CXCR7 ligand, FC313 [cyclo(-d-Tyr-l-Arg-l-MeArg-l-Nal-l-Pro-)], which recruits β-arrestin to CXCR7. Investigations via receptor mutagenesis and molecular modeling experiments suggest a possible binding mode of the cyclic pentapeptide CXCR7 agonist.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Oishi S,Kuroyanagi T,Kubo T,Montpas N,Yoshikawa Y,Misu R,Kobayashi Y,Ohno H,Heveker N,Furuya T,Fujii Ndoi
10.1021/acs.jmedchem.5b00216subject
Has Abstractpub_date
2015-07-09 00:00:00pages
5218-25issue
13eissn
0022-2623issn
1520-4804journal_volume
58pub_type
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