Patent application number | Description | Published |
20100222407 | TRIBLOCK COPOLYMERS FOR CYTOPLASMIC DELIVERY OF GENE-BASED DRUGS - The invention features a triblock copolymer including a hydrophilic block; a hydrophobic block; and a positively charged block capable of reversibly complexing a negatively charged molecule, e.g., a nucleic acid, wherein the hydrophobic block is disposed between the hydrophilic block and the positively charged block. Desirably, the triblock copolymer is capable of self-assembling into a supramolecular structure, such as a micelle or vesicle. The invention further features methods of delivering negatively charged molecules and methods of treating a disease or condition using the polymers of the invention. | 09-02-2010 |
20140343324 | SYNTHETIC MATRIX FOR CONTROLLED CELL INGROWTH AND TISSUE REGENERATION - Biomaterials containing a three-dimensional polymeric network formed from the reaction of a composition containing at least a first synthetic precursor molecule having n nucleophilic groups and a second precursor molecule having m electrophilic groups wherein the sum of n+m is at least five and wherein the sum of the weights of the first and second precursor molecules is in a range from about 8 to about 16% b weight of the composition, preferably from about 10 to about 15%, more preferably from about 12 to about 14.5% by weight of the composition. In one embodiment, the first and second precursor molecules are polyethylene glycols functionalized with nucleophilic and electrophilic groups, respectively. In a preferred embodiment, the nucleophilic groups are amino and/or thiol groups and the electrophilic groups are conjugated, unsaturated groups. The ratio of the equivalent weights of the electrophilic groups (second precursor molecule) and the nucleophilic groups (first precursor molecule) is in the range of between 0.7 and 1.1, more preferably between 0.8 and 1.0. The first and/or second precursor molecule may be covalently bound to one or more molecules selected from the group consisting of cell adhesion peptides, growth factors, and growth factor-like peptides. | 11-20-2014 |
Patent application number | Description | Published |
20090098083 | CONJUGATE ADDITION REACTIONS FOR THE CONTROLLED DELIVERY OF PHARMACEUTICALLY ACTIVE COMPOUNDS - The invention features polymeric biomaterials formed by nucleophilic addition reactions to conjugated unsaturated groups. These biomaterials may be used for medical treatments. | 04-16-2009 |
20090264538 | MULTIFUNCTIONAL POLYMERIC TISSUE COATINGS - Compositions for coating biological and non-biological surfaces, which minimize or prevent cell-cell contact and tissue adhesion, and methods of preparation and use thereof are disclosed. Embodiments include polyethylene glycol/polylysine (PEG/PLL) block or comb-type copolymers with high molecular weight PLL (greater than 1000, more preferably greater than 100,000); PEG/PLL copolymers in which the PLL is a dendrimer which is attached to one end of the PEG; and multilayer compositions including alternating layers of polycationic and polyanionic materials. The multi-layer polymeric material is formed by the ionic interactions of a polycation and a polyanion. The molecular weights of the individual materials are selected such that the PEG portion of the copolymer inhibits cellular interactions, and the PLL portion adheres well to tissues. The compositions and methods are useful, for example, in inhibiting formation of post-surgical adhesions, protecting damaged blood vessels from thrombosis and restenosis, and decreasing the extent of metastasis of attachment-dependent tumor cells. The compositions and methods are also useful for coating non-biological surfaces such as metallic surfaces. | 10-22-2009 |
20100003338 | Micelles for delivery of nitric oxide - Embodiments include a vehicle for delivery of nitric oxide comprising: a collection of micelles having an internal micelle core that comprises a polymer with N-diazeniumdiolate comprising NO complexed with secondary amines of the polymer. Embodiments include a method of making a nitric oxide vehicle comprising dissolving a polymer that comprises secondary amines in an aqueous solution and combining the polymer with nitric oxide in the solution to form a N-diazeniumdiolate comprising the nitric oxide complexed with the secondary amines, with the formation of the N-diazeniumdiolate causing the polymer to be at least partially insoluble in the solution and to form a collection of micelles that have an internal core that comprises N-diazeniumdiolate. | 01-07-2010 |
20100009409 | MOLECULAR VARIANT FIBRINOGEN FUSION PROTEINS - Fibrinogen fusion proteins, methods of making, and methods of using fibrinogen fusion proteins are described. In a preferred embodiment the fibrinogen fusion protein contains a truncated Aα chain of fibrinogen. The Aα chain contains truncation site, which is a deletion of amino acids at its C-terminal region. A non-fibrinogen protein or peptide is C-terminally attached to the truncation site. The fibrinogen fusion proteins can be used alone or mixed with native fibrinogen to form fibrin polymer. | 01-14-2010 |
20100080850 | POLYPEPTIDE LIGANDS FOR TARGETING CARTILAGE AND METHODS OF USE THEREOF - Ligands that specifically bind to articular cartilage tissues are disclosed, including uses for targeting therapeutics towards articular cartilage tissue and new materials for articular cartilage. The ligands are effective in vivo to target therapeutic materials to articular cartilage. | 04-01-2010 |
Patent application number | Description | Published |
20100055189 | Nanoparticles for immunotherapy - Nanoparticles that activate complement in the absence of biological molecules are described. The nanoparticles are shown to specifically target antigen presenting cells in specifically in lymph nodes, without the use of a biological molecule for targeting. These particles are useful vehicles for delivering immunotherapeutics. Surface chemistries and chemical formulations for the nanoparticles are described. | 03-04-2010 |
20110206759 | CCR7 LIGAND DELIVERY AND CO-DELIVERY IN IMMUNOTHERAPY - Chemokines may be administered to a patient for immunotolerization. Chemokines include CCL19 and CCL21. Materials and methods for accomplishing tolerization and described. | 08-25-2011 |
20120039989 | ERYTHROCYTE-BINDING THERAPEUTICS - Peptides that specifically bind erythrocytes are described. These are provided as peptidic ligands having sequences that specifically bind, or as antibodies or fragments thereof that provide specific binding, to erythrocytes. The peptides may be prepared as molecular fusions with therapeutic agents, tolerizing antigens, or targeting peptides. Immunotolerance may be created by use of the fusions and choice of an antigen on a substance for which tolerance is desired. Fusions with targeting peptides direct the fusions to the target, for instance a tumor, where the erythrocyte-binding ligands reduce or entirely eliminate blood flow to the tumor by recruiting erythrocytes to the target. | 02-16-2012 |
20120178139 | ERYTHROCYTE-BINDING THERAPEUTICS - Peptides that specifically bind erythrocytes are described. These are provided as peptidic ligands having sequences that specifically bind, or as antibodies or fragments thereof that provide specific binding, to erythrocytes. The peptides may be prepared as molecular fusions with therapeutic agents, tolerizing antigens, or targeting peptides. Immunotolerance may be created by use of the fusions and choice of an antigen on a substance for which tolerance is desired. | 07-12-2012 |
20140011978 | EXTRACELLULAR MATRIX HEPARIN-BINDING DOMAINS - Heparin binding peptides derived from a Tenascin (TNC) III1-5 domain or a fibrinogen β15-66 domain have been found that bind certain cytokines with high affinity. Materials and methods for making compositions and devices using these peptides are disclosed. | 01-09-2014 |
20140356384 | ERYTHROCYTE-BINDING THERAPEUTICS - Peptides that specifically bind erythrocytes are described. These are provided as peptidic ligands having sequences that specifically bind, or as antibodies or fragments thereof that provide specific binding, to erythrocytes. The peptides may be prepared as molecular fusions with therapeutic agents, tolerizing antigens, or targeting peptides. Immunotolerance may be created by use of the fusions and choice of an antigen on a substance for which tolerance is desired. | 12-04-2014 |