title: A novel surface-active peptide derivative exhibits in vitro inhibition of platelet aggregation.
abstract: A tetrapeptide corresponding to a region of the N-terminal portion of lactotransferrin with hydrophobic alkyl groups at the terminal ends was synthesized and its physicochemical properties as well as its effect on thrombin-stimulated platelet aggregation were examined. The tetrapeptide derivative, in the aggregated state, produced inhibitory effect on platelet aggregation. The concentration dependent activity of the peptide was analyzed in the light of micelle formation, with the micellar aggregate comprising four tetrapeptide units. The unique action of this peptide derivative on the inhibition of platelet aggregation might be useful in the development of potent antithrombotic drugs.
authors.affiliation: Department of Biotechnology, Central Leather Research Institute, Adyar, Madras, India.
authors.forename: C V
authors.initials: CV
authors.lastname: Ramesh
authors.forename: R
authors.initials: R
authors.lastname: Jayakumar
authors.forename: R
authors.initials: R
authors.lastname: Puvanakrishnan
mesh_terms: D006801:Humans; D007781:Lactoferrin / Q000138:chemical synthesis; D009842:Oligopeptides / Q000138:chemical synthesis / Q000494:pharmacology*; D010446:Peptide Fragments / Q000138:chemical synthesis / Q000494:pharmacology*; D010974:Platelet Aggregation / Q000187:drug effects* / Q000502:physiology; D010975:Platelet Aggregation Inhibitors / Q000138:chemical synthesis / Q000494:pharmacology*; D013917:Thrombin / Q000037:antagonists & inhibitors / Q000502:physiology
chemical_list: D009842:Oligopeptides; D010446:Peptide Fragments; D010975:Platelet Aggregation Inhibitors; D007781:Lactoferrin; D013917:Thrombin