[d-Arg1,d-Phe5,d-Trp7,9,Leu11]Substance P Acts as a Biased Agonist toward Neuropeptide and Chemokine Receptors
Substance P derivatives are potential therapeutic compounds for the treatment of small cell lung cancer and can cause apoptosis in small cell lung cancer cells in culture. These peptides act as broad spectrum neuropeptide antagonists, blocking calcium mobilization induced by gastrin-releasing peptid...
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Published in | The Journal of biological chemistry Vol. 273; no. 5; pp. 3097 - 3104 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
American Society for Biochemistry and Molecular Biology
30.01.1998
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Subjects | |
Online Access | Get full text |
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Summary: | Substance P derivatives are potential therapeutic compounds for the treatment of small cell lung cancer and can cause apoptosis
in small cell lung cancer cells in culture. These peptides act as broad spectrum neuropeptide antagonists, blocking calcium
mobilization induced by gastrin-releasing peptide, bradykinin, cholecystokinin, and other neuropeptides. We show that [ d -Arg 1 , d -Phe 5 , d -Trp 7,9 ,Leu 11 ]substance P has unique agonist activities in addition to this described antagonist function. At doses that block calcium
mobilization by neuropeptides, this peptide causes activation of c-Jun N-terminal kinase and cytoskeletal changes in Swiss
3T3 fibroblasts and stimulates migration and calcium flux in human neutrophils. Activation of c-Jun N-terminal kinase is dependent
on the expression of the gastrin-releasing peptide receptor in rat 1A fibroblasts, demonstrating that the responses to the
peptide are receptor-mediated. We hypothesize that [ d -Arg 1 , d -Phe 5 , d -Trp 7,9 ,Leu 11 ]substance P acts as a biased agonist on neuropeptide and related receptors, activating certain guanine nucleotide-binding
proteins through the receptor, but not others. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0021-9258 1083-351X |
DOI: | 10.1074/jbc.273.5.3097 |