Abstract
Experiments were based on the hypothesis that the histamine releasing action of substance P and some other neuropeptides is not due to the interaction of the neuropeptide with a specific membrane receptor. Rather, this may be a property of many amphiphilic compounds having a minimal number of positives charges and a hydrophobic chain which is not necessarily a peptide. According to this hypothesis, 18 substance P derivatives and fragments were synthetised and tested on rat and hamster peritoneal mast cells, among them five compounds which contain a non-peptide chain instead of the C-terminal substance P heptapeptide. The results are in accord with the above hypothesis.
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Repke, H., Bienert, M. Structural requirements for mast cell triggering by substance P-like peptides. Agents and Actions 23, 207–210 (1988). https://doi.org/10.1007/BF02142542
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DOI: https://doi.org/10.1007/BF02142542