US4456596A
Expired / Lapsed
US
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Wound healing glycoside compositions
Assignee: Individual
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Filing: 1981-04-13
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Granted: 1984-06-26
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Expires: 2001-04-13
Abstract
Abstract Compositions which stimulate tissue regeneration and whose active components are substances present in mammalian tissues and fluids are described. The active substances are a polypeptide consisting of 52 amino acids and having a molecular weight of about 5800, a glycosteroid and a glycosphingolipid. Compositions which contain the active ingredients accelerate wound healing when applied in the nano- to microgram ranges. Means for recovering the substances from mammalian materials in concentrated form by biochemical parting methods are also described.
Inventors
- 👤 Rolf Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/7028; A61K31/7034; A61K31/704; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/44; C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C07H15/10; A61L2300/00; A61L2300/40; A61L2300/412
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
191 words
A composition for stimulating wound healing by promoting proliferation of epithelium cells in the final phase of wound healing comprising 1 to 10 μg of a glycosteroid isolated from a protein-free fraction of mammalian tissue or fluid in a pharmaceutically acceptable carrier, said glycosteroid having the structure: ##STR8## wherein R is an oligosaccharide containing five sugar units wherein the glycosteroid is isolated from mammalian tissue or fluid by: (a) homogenizing the mammalian tissue or fluid with an aqueous solution of 0.2% NaCl; (b) clearing the homogenate from the cellular debris by centrifugation or filtration; (c) thereafter ultra-filtering the cleared homogenate; (d) concentrating the ultrafiltrate at 40° C. until the ionic strength thereof corresponds to a 0.8% NaCl solution; (e) binding orgnic material in the concentrated ultrafiltrate to active carbon; (f) thereafter extracting the active carbon with 10-30% acetic acid; (g) evaporating the solvent from the extract; (h) dissolving the residue in 0.2-2M acetic acid; (i) chromatographing the resulting solution over a molecular sieve column; (j) thereafter eluting the column with 0.2-2M acetic acid and collecting the second fraction with cell proliferating activity; and (k) removing the solvent from the collected eluate.
Claim 2
Dependent Claim
191 words
A composition for stimulating wound healing by promoting proliferation of epithelium cells in the final phase of wound healing comprising 1 to 10 μg of a glycosteroid isolated from a protein-free fraction of mammalian tissue or fluid in a pharmaceutically acceptable carrier, said glycosteroid having the structure: ##STR8## wherein R is an oligosaccharide containing five sugar units wherein the glycosteroid is isolated from mammalian tissue or fluid by: (a) homogenizing the mammalian tissue or fluid with an aqueous solution of 0.2% NaCl; (b) clearing the homogenate from the cellular debris by centrifugation or filtration; (c) thereafter ultra-filtering the cleared homogenate; (d) concentrating the ultrafiltrate at 40° C. until the ionic strength thereof corresponds to a 0.8% NaCl solution; (e) binding orgnic material in the concentrated ultrafiltrate to active carbon; (f) thereafter extracting the active carbon with 10-30% acetic acid; (g) evaporating the solvent from the extract; (h) dissolving the residue in 0.2-2M acetic acid; (i) chromatographing the resulting solution over a molecular sieve column; (j) thereafter eluting the column with 0.2-2M acetic acid and collecting the second fraction with cell proliferating activity; and (k) removing the solvent from the collected eluate.
Claim 3
Dependent Claim
26 words
A method of promoting proliferation of epithelium cells during wound healing comprising treating wound in the final phase of healing with the composition of claim 1.
Claim 4
Dependent Claim
23 words
The composition of claim 1 wherein the carrier is selected from the group consisting of carboxymethylcellulose, oil-in-water emulsions, water-in-oil emulsions and aqueous solutions.
Claim 5
Dependent Claim
25 words
The composition of claim 1 wherein the glycosteroid is isolated from a mammalian tissue selected from the group consisting of heart, lung, muscle and spleen.
Claim 6
Dependent Claim
24 words
The composition of claim 1 wherein the glycosteroid is isolated from a mammalian fluid selected from the group consisting of blood, plasma and serum.
Claim 7
Dependent Claim
30 words
The composition of claim 1 wherein the glycosteroid is isolated from the fluid or organ of a mammal selected from the group consisting of human, swine, horses, sheep and beef.
Claim 8
Dependent Claim
61 words
The composition of claim 1 wherein the glycosteroid is further concentrated by: (a) dissolving the dried eluate resulting from step (k) of claim 1 in ethanol-methylene chloride; (b) chromatographing the dissolved eluate over a silica gel column; (c) collecting the fractions of silica gel column eluate which have R f values of 0.4, 0.55 and 0.7; and (d) evaporating the solvent.
Claim 9
Dependent Claim
64 words
A composition for promoting fibroblast formation in wounds after capillarization and vascularization begins comprising 5 to 50 micrograms per milliliter of a glycosphingolipid isolated from a protein-free fraction of mammalian tissue or fluid in a pharmaceutically acceptable carrier, said glycosphingolipid having the formula: ##STR9## wherein R is an oligosaccharide containing 5 sugar units consisting of uronic acid, fucose and 3 modified and substituted hexoses.
Claim 10
Dependent Claim
64 words
A composition for promoting fibroblast formation in wounds after capillarization and vascularization begins comprising 5 to 50 micrograms per milliliter of a glycosphingolipid isolated from a protein-free fraction of mammalian tissue or fluid in a pharmaceutically acceptable carrier, said glycosphingolipid having the formula: ##STR9## wherein R is an oligosaccharide containing 5 sugar units consisting of uronic acid, fucose and 3 modified and substituted hexoses.
Claim 11
Dependent Claim
25 words
A method of promoting fibroblast formation in wounds comprising treating a wound in which vascularization and capillarization has begun with the composition of claim 8.
Claim 12
Dependent Claim
30 words
The method of claim 9 wherein the wound is treated with the composition in an amount sufficient to provide 5 to 50μ gram/ml ointment of the glycosphingolipid to the wound.
Claim 13
Dependent Claim
23 words
The composition of claim 8 wherein the carrier is selected from the group consisting of carboxymethylcellulose, oil-in-water emulsions, water-in-oil emulsions and aqueous solutions.
Claim 14
Dependent Claim
25 words
The composition of claim 8 wherein the glycosphingolipid is isolated from a mammalian tissue selected from the group consisting of heart, lung, muscle and spleen.
Claim 15
Dependent Claim
24 words
The composition of claim 8 wherein the glycosphingolipid is isolated from a mammalian fluid selected from the group consisting of blood, plasma and serum.
Claim 16
Dependent Claim
30 words
The composition of claim 8 wherein the glycosphingolipid is isolated from the fluid or organ of a mammal selected from the group consisting of humans, swine, horses, sheep and beef.
Claim 17
Dependent Claim
141 words
The composition of claim 8 wherein the glycosphingolipid is isolated from mammalian tissue or fluid by: (a) homogenizing the mammalian tissue or fluid with an aqueous solution with 0.2% NaCl; (b) clearing the homogenate from cellular debris by centrifugation or filtration; (c) thereafter ultra-filtering the cleared homogenate; (d) concentrating the ultrafiltrate at 40° C. until the ionic strength thereof correspond to a 0.8% NaCl solution; (e) binding organic material in the concentrated ultrafiltrate to active carbon (1% by weight) (f) thereafter extracting the active carbon with 10-30% acetic acid; (g) evaporating the solvent from the extract; (h) dissolving the residue in 0.2-2M acetic acid; (i) chromatographing the resulting solution over a molecular sieve column; (j) thereafter eluting the column with 0.2-2M acetic acid and collecting the first fraction with cell proliferating activity; and (k) removing the solvent from the collected eluate.
Claim 18
Dependent Claim
67 words
The composition of claim 15 wherein the glycosphingolipid is further concentrated by: (a) dissolving the dried eluate resulting from step (k) of claim 15 in acetic acid; (b) adsorbing the dissolved eluate on an equilibrated silica gel column having C-8 chains; (c) thereafter washing the column with a logarithmic gradient of 0.1% acetic acid--90% alcohol; (d) collecting the 30% alcohol containing fraction; and (e) evaporating the solvent.
References Cited (Backward Citations)
US3579499A
Cited
US4296233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |