Cavicchioni G, Fraulini A, Falzarano S, Spisani S. Structure–activity relationship of for-l-Met l-Leu-l-Phe-OMe analogues in human neutrophils.
Bioorg Chem 2006;
34:298-318. [PMID:
16919307 DOI:
10.1016/j.bioorg.2006.07.001]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2006] [Revised: 06/29/2006] [Accepted: 07/07/2006] [Indexed: 11/22/2022]
Abstract
Neutrophils constitute the first line of defence against bacterial invasion. They migrate to infected tissues along a concentration gradient of chemoattractant molecules, the most important of which is for-Met-Leu-Phe-OH (fMLP). Different responses arise from formylpeptides binding to different isoforms of the specific receptor. The aim of the studies reported herein was to clarify (i) the role of fMLP-OMe amide bonds in receptor-ligand cross-linking, (ii) the nature of the group occupying the N- and C-terminal positions, (iii) the features peculiar to the Met, Leu, and Phe receptor pockets, and (iv) the features which determine the specific neutrophil response.
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