Other

University of Southern California

Biomet, Inc.

Hancock Jaffe Laboratories, Inc.

Interpore Cross International

Hancock Jaffe Laboratories Aesthetics, Inc.

Marcel E Nimni

Bo Han

David T Cheung

Frederick L Hall

Lingtau Wu

Erlinda Maria Gordon

Edwin C Shors

William H Borner

Robert W Beart

Tai-Lan Tuan

Rudy C Shepard

An injectable composition having dermal filling and tissue expanding activity comprises: (1) a quantity of elastin sufficient to bring about dermal filling and tissue expansion when injected into a subject in need of dermal filling and tissue expansion; and (2) a pharmaceutically acceptable carrier. The composition can further comprise collagen; in other alternatives, the composition can further comprise hyaluronic acid; and one or more of the elastin, the collagen, and the hyaluronic acid, if present can be cross-linked, either intramolecularly or intermolecularly. The elastin, however, is the primary filler, even if collagen or hyaluronic acid are included in the composition.

Composite containing collagen and elastin as a dermal expander and tissue filler

An injectable composition having dermal filling and tissue expanding activity comprises (1) a quantity of elastin sufficient to bring about dermal filling and tissue expansion when injected into a subject in need of dermal filling and tissue expansion, and (2) a pharmaceutically acceptable carrier. The composition can further comprise collagen, in other alternatives, the composition can further comprise hyaluronic acid, and one or more of the elastin, the collagen, and the hyaluronic acid, if present can be cross-linked, either intramolecularly or intermolecularly. The elastin, however, is the primary filler, even if collagen or hyaluronic acid are included in the composition.

A composition for application to the skin can stimulate the in vivo synthesis of collagen and proteoglycans and improve the appearance of the skin, increasing its elasticity and fullness. In general, a composition according to the present invention comprises: (1) an antioxidant compound in a quantity sufficient to enhance collagen synthesis in the skin; (2) an organic penetrant in which the antioxidant compound is soluble in a sufficient quantity that a concentration of the antioxidant compound sufficient to enhance collagen synthesis can be applied topically and penetrate the skin; (3) a mixture of essential amino acids; (4) a supplemental source of sulfur; and (5) a topical pharmaceutically acceptable carrier. The antioxidant compound can be lipoic acid, a lipoic acid analogue or derivative, a bioflavonoid, a constituent of ginkgo, or an isoflavone. The organic penetrant is preferably benzyl alcohol. Other ingredients, such as esters of tocopherol and ascorbic acid, can be included.

Methods and compositions for enhancing collagen and proteoglycan synthesis in the skin

The present invention relates to compositions and methods for promoting tissue repair and regeneration. The invention provides a fusion polypeptide useful for targeting tissues for regeneration and methods of use therefore.

Matrix-targeted fusion polypeptides for tissue regeneration and wound healing

One embodiment of the invention is demineralized bone putty composition comprises: (1) demineralized bone matrix (DBM); and (2) a lipid fraction selected from the group consisting of lecithin and a mixture of lecithin and triglycerides containing unsaturated fatty acids. The putty composition is moldable, biocompatible, slowly resorbable, insoluble in tissue fluids, and non-extrudable. The composition delivers a biologically active product to animals and humans that will enhance bone formation at sites where bone is lost, deficient, or present in suboptimal amounts. The composition can further comprise calcium, an antioxidant such as Vitamin E or Vitamin C, or a hydrophilic polymer such as methylcellulose, a methylcellulose derivative, carboxymethyl cellulose, or hydroxypropyl methylcellulose. A second embodiment of the invention is a demineralized bone paste composition comprising: (1) about 15% to about 75% of an emulsion carrier, such as an aqueous phase; and (2) a bone-material-containing phase comprising: (a) demineralized bone matrix (DBM); and (b) an emulsifier component that is compatible with lipids. This bone paste composition is moldable, biocompatible, slowly resorbable, miscible with bone graft materials, soluble or partially soluble in tissue fluids, and extrudable.

Bone graft material incorporating demineralized bone matrix and lipids

A demineralized bone putty composition comprises: (1) demineralized bone matrix (DBM); and (2) a lipid fraction selected from the group consisting of lecithin and a mixture of lecithin and triglycerides containing unsaturated fatty acids. The putty composition is moldable, biocompatible, slowly resorbable, and soluble in tissue fluids, and non-extrudable. The composition delivers a biologically active product to animals and humans that will enhance bone formation at sites where bone is lost, deficient, or present in suboptimal amounts. The composition can further comprise calcium, an antioxidant such as Vitamin E or Vitamin C, or a hydrophilic polymer such as methylcellulose or hydroxypropyl methylcellulose.

A method for alleviating arthritis in mammals by the oral administration of a pharmaceutical composition compound of native Type II collagen in helical form and sulfated polysaccharides found in mammalian cartilage, the Type II collagen and sulfated polysaccharides being ionically bound.

Method for alleviating arthritis in mammals

A bone morphogenetic fusion protein and a method of preparation of the bone morphogenetic fusion protein. The bone morphogenetic fusion protein comprises a purification tag and a bone morphogenetic active fragment. A method of preparing bone morphogenetic fusion protein comprises purifying and renaturing bone morphogenetic protein to provide an active bone morphogenetic fusion protein preparation. Methods of use of the bone morphogenetic fusion protein are also provided.

Bone morphogenetic proteins and their use in bone growth

A composition and method for enhancing the appearance of the skin, the composition containing a mixture of essential amino acids, a penetrant, a neucleotide, vitamin C and vitamin E.

Nutritionally balanced dermal composition and method

An artificial skin is prepared by impregnating a collagen matrix with a transforming growth factor-.beta. having a collagen-binding site to bind the growth factor to the collagen matrix, incubating the impregnated matrix with a source of fibroblasts and mesenchymal stem cells to form a captured population of mesenchymal stem cells within the impregnated matrix and incubating the resultant matrix with a source of keratinocytes which epithelialize the matrix to form an artificial skin. The collagen matrix is preferably in the form of a collagen sheet. The transforming growth factor-.beta. can be transforming growth factor-.beta..sub.1, transforming growth factor-.beta..sub.2 or transforming growth factor-.beta..sub.3. Preferably, the transforming growth factor-.beta. having a collagen binding site is a fusion protein having a purification tag, at least one proteinase site, an extracellular matrix binding site and a transforming growth factor active fragment. The extracellular matrix binding site binds collagen, fibronectin or a cell surface. A method of preparing the fusion protein involves purifying and renaturing transforming growth factor-.beta. protein to provide an active fusion protein.

Artificial skin prepared from coclagen matrix containing transforming

An anti-fungal nail lacquer composition containing a film-forming agent, a solvent therefore, and an anti-fungal amount of griseofulvin which can be either in suspension or solution in the nail lacquer composition. A method of using the anti-fungal nail lacquer composition includes applying the composition to a finger or toenail and allowing the composition to remain in contact with the nail until the solvents evaporate and a thin film of griseofulvin remains on the nail.

Anti-fungal nail lacquer and method therefor

A process is described to purify collagen fibers while allowing the individual constituent molecules to retain their native configuration and 3-dimensional arrangement characteristic of the tissues from which they are derived. Collagenous tissues used as sources of purified collagen and for manufacturing bioprosthesis contain significant amounts of other substances (elastin, glycoproteins, polysaccharides, cell derived materials, etc.). This process becomes therefore useful to selectively preserve the collagen in its native conformation and to eliminate contaminants. The method described allows for enzymatic removal of all extraneous materials while preserving the native collagen molecules in their original fiber configuration. Subsequently this network of native collagen fibrils can be crosslinked using standard bifunctional crosslinking reagents, treated with other chemical substances, physical methods of insolubilization, or can be disrupted chemically or mechanically into smaller molecular aggregates or into the constituent single molecules.

Process for purifying collagen and generating bioprosthesis

Processes are disclosed for improving the biostability of tissue implant devices. The processes comprise methods for treating harvested tissue with calcification inhibitor, tissue crosslinking reagent, and reagents capable of forming additional tissue reaction sites providing bioprosthetic devices having enhanced amounts of tissue bound calcification inhibitor. After long-term implantation, the treated tissue remains calcification free and exhibits a high degree of physical stability which minimizes the risk of mechanical failure.

Process for improving the biostability of tissue implant devices and

A dual phase solvent carrier system for topically applying at least one pharmaceutically active compound comprised of the active compound dissolved in at least one delivery solvent and at least one fugitive solvent, with a particularly useful composition for topically treating dermatophytic infections comprised of of griseofulvin, benzyl alcohol and at least one fugitive solvent.

Dual phase solvent carrier system

A method of making implantable ligament and tendon prostheses from natural collagen-containing tissues is described. The tissues used are those wherein the collagen fibers are aligned in one direction such as in ligaments or tendons. The method comprises disrupting the interfibrillar matrix physically by mechanical means such as a roller or rollers in order to generate an expanded network of fibers that are more easily further treated chemically and which also generate a more favorable substrate for tissue ingrowth after implantation. Prostheses made from separated collagen fiber bundles which retain their natural configuration and length (as opposed to reconstituted collagen), exhibit improved softness and flexibility when compared with prostheses made from conventional chemically fixed (e.g., glutaraldehyde cross-linked) tendons which have not been separated as described herein. Another implementation of the developed new technology allows for the formation of composites between the dissociated collagen fibers involving two or more tissues or between collagen and synthetic fibers. These composites can also include absorbable materials.

Growing community of inventors

Santa Monica, CA, United States of America

Marcel E Nimni