Liposomal defensins
First Claim
1. A method of treating a mammal for an infection by a microbe sensitive to a defensin, the method comprising administering to the mammal a liposome comprising:
- (a) a bilayer comprising a lipid which comprises palmitoyloleoyl phosphatidylcholine, dioleoyl phosphatidylcholine or distearoyl phosphatidylcholine and cholesterol;
(b) an internal compartment comprising an aqueous buffer; and
,(c) a neutralized defensin selected from the group consisting of prototypical mammalian defensins, beta-defensins, indolicidin, magainins and insect defensins,wherein an amount of the liposome comprising an anti-infection effective amount of the defensin is administered.
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Accused Products
Abstract
Defensins are microbicidal, tumoricidal cytotoxic protein components of animal host defense systems. They can be entrapped in liposomes containing release-inhibiting lipid such that the defensins are neutralized, and their release from the liposomes is inhibited; however, the defensins remain effective when exposed to endocytosed material in endocytic vesicles. Liposomal defensin formulations are administered to animals for the treatment or prevention of microbial infections, for the treatment of cancers and for the treatment of disorders characterized by a deficiency of protein-mediated cytotoxic activity in cytoplasmic granules.
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Citations
22 Claims
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1. A method of treating a mammal for an infection by a microbe sensitive to a defensin, the method comprising administering to the mammal a liposome comprising:
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(a) a bilayer comprising a lipid which comprises palmitoyloleoyl phosphatidylcholine, dioleoyl phosphatidylcholine or distearoyl phosphatidylcholine and cholesterol; (b) an internal compartment comprising an aqueous buffer; and
,(c) a neutralized defensin selected from the group consisting of prototypical mammalian defensins, beta-defensins, indolicidin, magainins and insect defensins, wherein an amount of the liposome comprising an anti-infection effective amount of the defensin is administered. - View Dependent Claims (2, 3, 4, 5, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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6. A method of treating a mammal afflicted with a cancer responsive to a defensin, the method comprising administering to the mammal a liposome comprising:
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(a) a bilayer comprising a lipid which comprises palmitoyloleoyl phosphatidylcholine, dioleoyl phosphatidylcholine or distearoyl phosphatidylcholine and cholesterol; (b) an internal compartment comprising an aqueous buffer; and
, (c) a neutralized defensin selected from the group consisting of prototypical mammalian defensins, beta-defensins, indolicidin, magainins and insect defensins,wherein an amount of the liposome comprising an anticancer effective amount of the defensin is administered to the mammal. - View Dependent Claims (7, 8)
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Specification