Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai
Patent
1998-07-13
2000-05-30
Lankford, Jr., Leon B.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Peptide containing doai
514 2, 514 14, 514 16, 514 17, 514885, 514886, 514887, A61K 3800
Patent
active
06069128&
ABSTRACT:
The present invention relates to membrane-permeable peptides which are intracellular agonists and/or antagonists of chemotactic factor receptors rendered hydrophobic through acylation and acetoxymethylation of their amine and acid functional groups. The modified peptides of the present invention are loaded into cells. The acetoxymethyl esters are cleaved by non-specific esterases rendering the peptides active in the intracellular compartments of the cells. The effects of the introduction of transformed specific peptides corresponding to intracellular regions common to the major chemokine receptors are illustrated. These peptides completely inhibited chemotactic factor and chemokine-induced calcium mobilization. Furthermore, leukocytes of mice intravenously injected with these peptides failed to migrate towards chemokines(IL-8).
REFERENCES:
patent: 5332802 (1994-07-01), Kelman et al.
patent: 5350681 (1994-09-01), Iacobucci et al.
patent: 5607691 (1997-03-01), Hale et al.
Damaj Bassam B.
McColl Shaun R.
Naccache Paul H.
Cote France
Lankford , Jr. Leon B.
Tate Christopher R.
Universite Laval
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