Materials and methods for making improved micelle compositions
First Claim
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1. A method of preparing a biologically active micelle product comprising one or more biologically active amphipathic compounds in association with a micelle;
- said method comprising the steps of;
a) mixing one or more lipids wherein at least one lipid component is covalently bonded to a water-soluble polymer;
b) forming sterically stabilized micelles from lipids;
c) incubating micelles from step (b) with one or more biologically active amphipathic compound(s) under conditions in which said compound(s) becomes associated with said micelles in a more biologically active conformation.
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Abstract
Provided are methods for preparing improved biologically active micelle and crystalline products comprising a biologically active amphipathic compound in association with a micelle or crystalline product. Methods for producing the micelle or crystalline products as well as methods of using the micelle or crystalline products in therapeutic, diagnostic, and cosmetic, applications are also provided.
165 Citations
34 Claims
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1. A method of preparing a biologically active micelle product comprising one or more biologically active amphipathic compounds in association with a micelle;
- said method comprising the steps of;
a) mixing one or more lipids wherein at least one lipid component is covalently bonded to a water-soluble polymer;
b) forming sterically stabilized micelles from lipids;
c) incubating micelles from step (b) with one or more biologically active amphipathic compound(s) under conditions in which said compound(s) becomes associated with said micelles in a more biologically active conformation. - View Dependent Claims (2, 3, 4, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
a) preparing a diagnostic composition according to claim 20;
b) administering a diagnostically effective amount of said composition to a target tissue or organ; and
c) detecting uptake of the composition at the target tissue or organ by detecting the presence of the label at the target tissue or organ.
- said method comprising the steps of;
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23. The method according to claim 22 wherein the label is selected for the group consisting of a fluorescent label, a radioactive label, a dye, a gas, and a compound which enhances radiographic, magnetic resonance, and ultrasound imaging.
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24. An oral controlled release preparation for the treatment of a gastrointestinal disorder produced according to the method of claim 12 wherein said method further comprises the step of encapsulating the biologically active micelle product.
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25. The oral controlled release preparation of claim 24 wherein the gastrointestinal disorder is selected from the group consisting of inflammatory bowel disease, acute food impaction, chronic constipation, Hirschprung'"'"'s disease, achalasia, infantile hypertrophic pyloric stenosis, and ulcers.
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26. A method of administering a biologically active amphipathic compound to a target tissue or organ comprising the steps of:
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a) a biologically active micelle product comprising a biologically active amphipathic compound in association with a micelle according to the method of any one of claims 1, 5 or 7; and
b) administering a therapeutically effective amount of said micelle product to said target tissue or organ.
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27. The method according to claim 26 wherein the amphipathic compound in a biologically active conformation is characterized by having one or more α
- - or π
-helical domains.
- - or π
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28. The method of claim 27 wherein said peptide is a member of the vasoactive intestinal peptide (VIP)/growth hormone releasing factor (GRF) family of peptides.
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29. The method of claim 27 wherein said peptide is selected from the group consisting of VIP, galanin, endothelin, and angiotensin II and fragments, analogs, and modulators thereof.
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30. A method for preserving a bodily organ, tissue or cell type for transplantation or fertilization comprising the step of incubating said organ, tissue, or cell type in the micelle composition produced according to claim 12.
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5. A method of preparing a biologically active micelle product comprising one or more biologically active amphipathic compounds in association with a micelle;
- said method comprising the steps of;
a) mixing one or more lipids with one or more biologically active amphipathic compounds, wherein at least one lipid component is covalently bonded to a water-soluble polymer;
b) forming sterically stabilized micelles from the mixture of step (a) under conditions in which said compound(s) becomes associated with said micelles in a more biologically active conformation. - View Dependent Claims (6)
- said method comprising the steps of;
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7. A method for preparing a biologically active sterically stabilized crystalline product comprising one or more biologically active compounds which are insoluble in aqueous solution;
- said method comprising the steps of;
a) mixing the biologically active compound(s) with one or more lipids, wherein at least one of the lipids is conjugated to a water soluble polymer; and
b) forming sterically stabilized crystalline products. - View Dependent Claims (8, 9, 31, 32, 33, 34)
a) preparing a biologically active micelle product comprising a biologically active amphipathic compound in association with a micelle prepared according to the method of claim 8; and
b) administering a therapeutically effective amount of said micelle product to said target tissue.
- said method comprising the steps of;
Specification