Abstract:
:The incidence of malignant melanoma is rising faster than that of any other cancer in the United States. Because of its high expression on the surface of melanomas, MC1R has been investigated as a target for selective imaging and therapeutic agents against melanoma. Eight ligands were screened against cell lines engineered to overexpress MC1R, MC4R, or MC5R. Of these, compound 1 (4-phenylbutyryl-His-dPhe-Arg-Trp-NH(2)) exhibited high (0.2 nM) binding affinity for MC1R and low (high nanomolar) affinities for MC4R and MC5R. Functionalization of the ligand at the C-terminus with an alkyne for use in Cu-catalyzed click chemistry was shown not to affect the binding affinity. Finally, formation of the targeted polymer, as well as the targeted micelle formulation, also resulted in constructs with low nanomolar binding affinity.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Barkey NM,Tafreshi NK,Josan JS,De Silva CR,Sill KN,Hruby VJ,Gillies RJ,Morse DL,Vagner Jdoi
10.1021/jm201226wsubject
Has Abstractpub_date
2011-12-08 00:00:00pages
8078-84issue
23eissn
0022-2623issn
1520-4804journal_volume
54pub_type
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