Patent application number | Description | Published |
20090186065 | ISOLATING AND PURIFYING CELLS FOR THERAPY - The present invention provides methods and devices for isolating cells from a subject by circulating the subject's body fluid over an affinity moeity coupled matrix to isolate isolate cells from a subject either ex vivo or in vivo. One aspect of the invention is directed to connecting a subject to a system capable of circulating the subject's body fluid through an affinity moiety coupled matrix, such that the affinity moiety coupled matrix is capable of binding to and extracting target cells from the body fluid, and then eluting the target cells from the affinity moiety. Another aspect of the invention is directed to the apparatus for isolating cells from a subject, comprising a blood circulation system with an arterial side blood circuit for extracting blood and flowing the blood over an affinity moiety coupled matrix that binds to and extracts target cells and a venous side blood circuit for returning the blood to the patient. The invention is also directed to in vivo seeding of biomatrials by implanting the affinity moiety coupled matrix in a subject to attract and bind the target cells in vivo. | 07-23-2009 |
20090208466 | INK-JET PRINTING OF TISSUES - A method of forming an array of viable cells is carried out by ink-jet printing a cellular composition containing said cells on a substrate. At least two different types of viable mammalian cells are printed on the substrate, the at least two different types of viable mammalian cells selected to together form a tissue. In some embodiments at least three or four different viable mammalian cells are printed on the substrate, the cells selected to together form a tissue. In some embodiments one of the viable mammalian cell types is a stem cell. In some embodiments the method further comprises printing at least one support compound on the substrate, the support compound selected to form a tissue together with said cells. In some embodiments the method further comprises printing at least one growth factor on the substrate, the growth factor selected to cause the cells to form a tissue. | 08-20-2009 |
20090265005 | BIOREACTOR SYSTEM AND METHOD OF ENHANCING FUNCTIONALITY OF MUSCLE CULTURED IN VITRO - A method of producing organized skeletal muscle tissue from precursor muscle cells in vitro comprises: (a) providing precursor muscle cells on a support in a tissue media; then (b) cyclically stretching and relaxing the support at least twice along a first axis during a first time period; and then (c) optionally but preferably maintaining the support in a substantially static position during a second time period; and then (d) repeating steps (b) and (c) for a number of times sufficient to enhance the functionality of the tissue formed on the support and/or produce organized skeletal muscle tissue on the solid support from the precursor muscle cells. | 10-22-2009 |
20100129450 | Electrospun Cell Matrices - The invention is directed to compositions and methods for preparing electrospun matrices comprising at least one natural biological material component and at least one synthetic polymer material. The natural component makes the matrices highly biocompatible while the molecular weight polymer component can impart additional strength mechanical strength to the scaffold and/or improve ease of manufacture by increasing viscosity and spinning characteristics of the solution during electrospining. | 05-27-2010 |
20110097379 | DIRECTED STEM CELL RECRUITMENT - The invention is directed to methods of inducing cell recruitment and tissue regeneration at a target site in a subject. It is also based, in part, on the discovery that a subject's own biologic resources and environmental conditions can be used for in situ tissue regeneration and thereby reduce or eliminate the need for donor cell procurement and ex vivo manipulation of such donor cells. Methods are disclosed for recruitment of a subject's own stem cells to a target region by inducing a sustained positive pressure at a target site, such as the kidney, thereby increasing the number of pluripotent cells capable of differentiating to regenerate the target tissue. | 04-28-2011 |
20140242125 | MUSCLE TISSUE REGENERATION USING MUSCLE FIBER FRAGMENTS - The invention is directed to methods and compositions for obtaining uniform sized muscle fiber fragments for transplantation. These muscle fiber fragments are able to reconstitute into long fibers that are oriented along native muscle. The implanted muscle cells integrate with native vascular and neural network, as confirmed by histology and immunohistochemistry. This invention is particularly advantageous because autologous muscle can be harvested from a donor site, processed and injected into target sites in the operating room. The fragmented muscle fibers can be readily integrated within the host. | 08-28-2014 |
20150025031 | METABOLIC DOWNREGULATION FOR CELL SURVIVAL - The present invention provides a system and method of maintaining and/or increasing cell viability by downregulating cellular metabolic rate under hypoxic conditions, wherein the availability of adenosine or derivatives thereof in the cell is increased and/or prolonged. The present invention also relates to a system and method of prolonging the survival of implanted cells that are under hypoxic condition until host neovascularization is achieved, wherein the availability of adenosine or derivatives thereof in the cell is increased and/or prolonged. The present invention also provides a system and method of maintaining and/or increasing cell viability by downregulating cellular metabolic rate under hypoxic conditions, wherein at least one purine metabolism enzyme inhibitor is applied to the cell. | 01-22-2015 |
Patent application number | Description | Published |
20080305146 | SELECTIVE CELL THERAPY FOR THE TREATMENT OF RENAL FAILURE - Provided herein are isolated populations of kidney cells harvested from differentiated cells of the kidney, wherein cells have been expanded in vitro. The kidney cells may include peritubular interstitial cells of the kidney, and preferably produce erythropoietin (EPO). The kidney cells may also be selected based upon EPO production. Methods of producing an isolated population of EPO producing cells are also provided, and methods of treating a kidney disease resulting in decreased EPO production in a patient in need thereof are provided, including administering the population to the patient, whereby the cells produce EPO in vivo. | 12-11-2008 |
20090208577 | Inkjet Printing of Tissues and Cells - Provided herein is an apparatus for printing cells which includes an electrospinning device and an inkjet printing device operatively associated therewith. Methods of making a biodegradable scaffold having cells seeded therein are also provided. Methods of forming microparticles containing one or more cells encapsulated by a substrate are also provided, as are methods of forming an array of said microparticles. | 08-20-2009 |
20100104544 | SELECTIVE CELL THERAPY FOR THE TREATMENT OF RENAL FAILURE - Provided herein are isolated populations of kidney cells harvested from differentiated cells of the kidney, wherein the cells have been expanded in vitro. The kidney cells preferably produce erythropoietin (EPO). The kidney cells may also be selected based upon EPO production. Methods of producing an isolated population of EPO producing cells are also provided, and methods of treating a kidney disease resulting in decreased EPO production in a patient in need thereof are provided, including administering the population to the patient, whereby the cells express EPO in vivo in an oxygen tension-dependent manner. | 04-29-2010 |
20100112062 | KIDNEY STRUCTURES AND METHODS OF FORMING THE SAME - Provided herein are isolated populations of kidney cells harvested from differentiated cells of the kidney, wherein cells have been expanded in vitro, and methods of use thereof. The cells may be provided in a three dimensional matrix for culturing in vitro and/or implanting in vivo. Methods of seeding cells onto the matrix are also provided. | 05-06-2010 |
20100112087 | OXYGEN-GENERATING COMPOSITIONS FOR ENHANCING CELL AND TISSUE SURVIVAL IN VIVO - A method of treating hypoxic tissue such as wound tissue comprises contacting a composition to the hypoxic tissue in a hypoxia-treatment effective amount, the composition comprising a biodegradable polymer and an inorganic peroxide incorporated into the polymer. | 05-06-2010 |
20100160183 | INKJET GENE PRINTING - Provided herein are methods and apparatuses for transfecting a cell with a compound of interest by stressing the cell, e.g. with shear stress. The compound of interest may be nucleic acids, proteins, molecules, nanoparticles, drugs, etc., or any combination thereof. Methods of printing cells with an inkjet printing device are also provided, wherein at least a portion of viable cells (preferably at least 1%) are transfected with a compound of interest. Preferably, at least 25% of the cells are viable after printing. In addition, methods of forming an array of viable cells are provided wherein at least a portion of the viable printed cells (preferably at least 1%) are transfected with at least one compound of interest. | 06-24-2010 |
20100331980 | ALIGNED SCAFFOLDING SYSTEM FOR SKELETAL MUSCLE REGENERATION - Provided herein are anisotropic muscle implants that have a biodegradable scaffold comprising a plurality of fibers oriented along a longitudinal axis. The implants may include mammalian muscle cells seeded and/or fused into myotubes on the scaffold. Methods of forming the muscle implants are provided, as are methods of treating a subject in need of skeletal muscle reconstruction. | 12-30-2010 |
20110172611 | DELIVERY SYSTEM - Provided herein is a delivery system, including: (a) an optical sensor configured to detect data useful to create a map of a bodily surface; and (b) a printer operatively associated with the optical sensor and configured to deliver compositions (optionally including cells) to the bodily surface based upon the data or map. Methods of forming a tissue on a bodily surface of a patient in need thereof are also provided, as are methods, systems and computer program products useful for processing bodily surface data. | 07-14-2011 |
20110172683 | TISSUE EXPANDER - Provided herein is a tissue stretching device including a tissue clamping member defining an area in a Z plane, wherein the tissue clamping member is configured to hold tissue parallel to the Z plane. Methods of use of the tissue stretching device to stretch a tissue as well as for culturing organized tissues are also provided. Stretched and/or cultured tissues produced by these processes are also provided, as well as methods of treatment making use of the same. | 07-14-2011 |
20120089238 | INTEGRATED ORGAN AND TISSUE PRINTING METHODS, SYSTEM AND APPARATUS - A method of making an organ or tissue comprises: (a) providing a first dispenser containing a structural support polymer and a second dispenser containing a live cell-containing composition; (b) depositing a layer on said support from said first and second dispenser, said layer comprising a structural support polymer and said cell-containing composition; and then (c) iteratively repeating said depositing step a plurality of times to form a plurality of layers one on another, with separate and discrete regions in each of said layers comprising one or the other of said support polymer or said cell-containing composition, to thereby produce provide a composite three dimensional structure containing both structural support regions and cell-containing regions. Apparatus for carrying out the method and composite products produced by the method are also described. | 04-12-2012 |
20130267008 | FREEZING MEDIUM COMPOSITION FOR CRYOPRESERVING AMNIOTIC FLUID-DERIVED STEM CELLS AND A METHOD FOR CRYOPRESERVING THE SAME - Provided are to a freezing medium composition for cryopreserving amniotic fluid-derived stem cells, which has A lower concentration of Me | 10-10-2013 |
20130281400 | Metabolic Downregulation for Cell Survival - The present provides a system and method of maintaining and/or increasing cell viability by downregulating cellular metabolic rate under hypoxic conditions. The present invention also relates to a system and method of prolonging the survival of implanted cells that are under hypoxic condition until host neovascularization is achieved. | 10-24-2013 |
20140012225 | DELIVERY SYSTEM - Provided herein is a delivery system, including: (a) an optical sensor configured to detect data to create a map of a patient bodily surface; and (b) a dispenser operatively associated with the optical sensor and configured to deliver compositions (optionally including cells) to the patient bodily surface based upon the data or map. Methods of forming a tissue on a patient bodily surface of a patient in need thereof are also provided, as are methods, systems and computer program products useful for processing patient bodily surface data. | 01-09-2014 |
20140127308 | ENCAPSULATED CELLS FOR HORMONE REPLACEMENT THERAPY - A composition comprising microcapsules, the microcapsules containing both live mammalian ovarian granulosa cells and live mammalian ovarian theca cells, is described. In some embodiments, the granulosa cells and the theca cells are contained in separate microcapsules in the composition; in some embodiments, the granulosa cells and the theca cells are contained together in the same microcapsules in the composition The composition is can be used for estrogen, and optionally also progesterone, delivery, and hence is preferably free or essentially free of oocytes. Methods of using the same and pharmaceutical formulations containing the same are also described. | 05-08-2014 |
20140128416 | MEDICAL DEVICES INCORPORATING COLLAGEN INHIBITORS - Provided herein are implantable or insertable biomedical devices comprising a substrate and a collagen inhibitor on or in said substrate, and methods of treatment using the same. In some embodiments, the device is a urethral, ureteral, or nephroureteral catheter or stent. In some embodiments, the device is an absorbable esophageal or tracheal stent. Wound closure devices are also provided herein, including a substrate and a collagen inhibitor on or in the substrate. Also provided are surgical packings, including a substrate and a collagen inhibitor on or in the substrate. A barrier material for preventing adhesions in a subject is further provided, including a preformed or in situ formable barrier substrate and a collagen inhibitor on or in the substrate. Kits comprising the coated substrates are also provided. | 05-08-2014 |
20140199276 | INKJET PRINTING OF TISSUES AND CELLS - Provided herein is an apparatus for printing cells which includes an electrospinning device and an inkjet printing device operatively associated therewith. Methods of making a biodegradable scaffold having cells seeded therein are also provided. Methods of forming microparticles containing one or more cells encapsulated by a substrate are also provided, as are methods of forming an array of said microparticles. | 07-17-2014 |
20140371869 | PRODUCTION OF TISSUE ENGINEERED DIGITS AND LIMBS - The invention pertains to methods of producing artificial composite tissue constructs that permit coordinated motion. Biocompatable structural matrices having sufficient rigidity to provide structural support for cartilage-forming cells and bone-forming cells are used. Biocompatable flexible matrices seeded with muscle cells are joined to the structural matrices to produce artificial composite tissue constructs that are capable of coordinated motion. | 12-18-2014 |
20150018948 | ORBICULAR TISSUE EXPANDER - Provided herein is a tissue stretching device configured for orbicular expansion of a tissue placed therein. Methods of use of the device to stretch a tissue as well as for culturing organized tissues are also provided. Stretched and/or cultured tissues produced by these processes are also provided, as well as methods making use of the same. | 01-15-2015 |