Abstract:
:Metastin has been identified as a metastasis suppressor gene product that mediates its function through a G protein coupled receptor, GPR54. To refine insight into the critical pharmacophore for the activation of GPR54, we have conducted alanine and d-amino acid scanning on a biologically active metastin fragment (45-54). Based on these data and structures of peptides previously reported to activate GPR54, a series of shortened metastin (45-54) derivatives were synthesized and tested for the ability to induce GPR54 signaling. These biological experiments were performed in yeast containing human GPR54 that was coupled to the pheromone response pathway and a pheromone responsive lacZ reporter gene. Compounds 32, 33, and 39, which possess an N-terminal basic group and a C-terminal RW-amide motif, were strong agonists, similar to the level of metastin. This may provide an approach to reverse the pro-metastatic effect of metastin deletion in multiple malignant tumors.
journal_name
Bioorg Med Chem Lettjournal_title
Bioorganic & medicinal chemistry lettersauthors
Niida A,Wang Z,Tomita K,Oishi S,Tamamura H,Otaka A,Navenot JM,Broach JR,Peiper SC,Fujii Ndoi
10.1016/j.bmcl.2005.09.054subject
Has Abstractpub_date
2006-01-01 00:00:00pages
134-7issue
1eissn
0960-894Xissn
1464-3405pii
S0960-894X(05)01190-Xjournal_volume
16pub_type
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