Delivery of bioactive compounds to an organism
First Claim
1. A method of delivering a protein to a mammal comprising the steps of:
- growing in vitro a plurality of cells from the same species as said mammal, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, and wherein said cells are mixed with an extracellular matrix to create a suspension;
placing said suspension in a vessel having a three-dimensional geometry approximating the in vivo gross morphology of a tissue of interest, said vessel having attachment surfaces thereon; and
allowing the suspension to coalesce;
culturing said coalesced suspension under conditions in which said cells connect to said attachment surfaces and form an organized tissue having an in vivo-like gross and cellular morphology of said tissue of interest, and wherein the organized tissue further is comprised of post-mitotic cells; and
implanting said tissue into said mammal, whereby said protein is produced and delivered to said mammal, whereby said protein is of a type or produced in an amount not produced by said tissue of interest lacking said foreign DNA sequence, wherein said protein is produced sufficiently to provide a therapeutic effect to the mammal upon implantation of said organized tissue into said mammal.
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Accused Products
Abstract
Disclosed herein is a method of delivering a bioactive compound to an organism that involves growing individual cells in vitro under conditions that allow the formation of an organized tissue, at least a subset of the cells containing a foreign DNA sequence which mediates the production of the bioactive compound; and implanting the organized tissue into the organism, whereby the bioactive compound is produced and delivered to the organism. Also disclosed herein is an in vitro method for producing a tissue having in vivo-like gross and cellular morphology that involves providing precursor cells of the tissue; mixing the cells with a solution of extracellular matrix components to create a suspension; placing the suspension in a vessel having a three dimensional geometry approximating the in vivo gross and cellular morphology of the tissue and having attachment surfaces coupled thereto; allowing the suspension to coalesce; and culturing the cells under conditions in which the cells form an organized tissue connected to the attachment surfaces. Also disclosed herein is an apparatus for producing in vitro a tissue having in vivo-like gross and cellular morphology. This apparatus includes a vessel having a three dimensional geometry approximating the in vivo morphology of the tissue and tissue attachment surfaces coupled thereto.
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Citations
36 Claims
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1. A method of delivering a protein to a mammal comprising the steps of:
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growing in vitro a plurality of cells from the same species as said mammal, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, and wherein said cells are mixed with an extracellular matrix to create a suspension; placing said suspension in a vessel having a three-dimensional geometry approximating the in vivo gross morphology of a tissue of interest, said vessel having attachment surfaces thereon; and allowing the suspension to coalesce; culturing said coalesced suspension under conditions in which said cells connect to said attachment surfaces and form an organized tissue having an in vivo-like gross and cellular morphology of said tissue of interest, and wherein the organized tissue further is comprised of post-mitotic cells; and implanting said tissue into said mammal, whereby said protein is produced and delivered to said mammal, whereby said protein is of a type or produced in an amount not produced by said tissue of interest lacking said foreign DNA sequence, wherein said protein is produced sufficiently to provide a therapeutic effect to the mammal upon implantation of said organized tissue into said mammal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of delivering a protein to a mammal comprising the steps of:
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growing in vitro a plurality of mammalian cells from the same species as said mammal, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, and wherein said cells are mixed with an extracellular matrix to create a suspension; placing said suspension in a vessel wherein the cells form an organized tissue of interest having a three dimensional cellular organization which is retained upon implantation into a mammal, and wherein the organized tissue is further comprised of post-mitotic cells; and implanting said organized tissue into said mammal, whereby said protein is produced and delivered to said mammal sufficiently to provide a therapeutic effect to the mammal, whereby said protein is of a type or produced in an amount not produced by a tissue lacking said foreign DNA sequence.
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15. A method of providing a protein to a mammal in therapeutic need thereof:
implanting into said mammal an organized tissue having a three-dimensional geometry approximating the in vivo gross morphology of a tissue of interest, wherein the organized tissue is comprised of post-mitotic cells from the same species as said mammal and wherein at least a subset of cells of said organized tissue comprises a foreign DNA sequence operatively linked to a promoter and encoding a protein, and wherein said protein is produced sufficiently to provide a therapeutic effect to the mammal upon implantation of said organized tissue into said mammal. - View Dependent Claims (17, 28)
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16. A method of providing a protein to a mammal in therapeutic need thereof:
implanting into said mammal an organized tissue comprising post-mitotic cells from the same species as said mammal and having a three-dimensional geometry approximating the in vivo gross morphology of a tissue of interest that is retained upon implantation of said organized tissue into a mammal, wherein at least a subset of the cells of said organized tissue comprise a foreign DNA sequence operatively linked to a promoter and encoding a protein, and wherein said protein is produced sufficiently to provide a therapeutic effect to the mammal upon implantation of said organized tissue into said mammal.
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18. An in vitro method for producing an organized tissue which has an in vivo-like gross and cellular morphology comprising the steps of:
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providing cells of said tissue, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, wherein said cells are mixed with an extracellular matrix to create a suspension; placing said suspension in a vessel having a three-dimensional geometry approximating the in vivo gross morphology of a tissue of interest, said vessel having attachment surfaces thereon; and allowing the suspension to coalesce; and culturing said coalesced suspension under conditions in which said cells connect to said attachment surfaces and form an organized tissue having an in vivo-like gross and cellular morphology of said tissue of interest, wherein the organized tissue is further comprised of post-mitotic cells and wherein at least a subset of the cells said organized tissue comprise said DNA sequence. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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29. An organized tissue producing a protein of a type or produced in an amount not produced normally by a tissue of interest, where the organized tissue is produced by the steps of:
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mixing a plurality of cells with an extracellular matrix to create a suspension, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein; placing said suspension in a vessel having a three-dimensional geometry approximating the in vivo gross morphology of said tissue of interest, said vessel having attachment surfaces thereon; and allowing the suspension to coalesce; and culturing said coalesced suspension under conditions in which said cells connect to said attachment surfaces and form an organized tissue having an in vivo-like gross and cellular morphology of said tissue of interest, and wherein the organized tissue is further comprised of post-mitotic cells, and; wherein the protein is produced at detectable levels in said tissue.
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30. An organized tissue, wherein the organized tissue has an in vivo-like gross and cellular morphology of a tissue of interest and produces a protein of a type or produced in an amount not produced normally by said tissue of interest comprising:
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a plurality of cells, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, wherein said cells form an organized tissue approximating the in vivo gross morphology of said tissue of interest and wherein the organized tissue is further comprised of post-mitotic cells, and; wherein the protein is produced at detectable levels in said tissue. - View Dependent Claims (31)
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32. An organized tissue producing a protein produced by the steps of:
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mixing a plurality of mammalian cells, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, wherein said cells are mixed with an extracellular matrix to create a suspension; placing said suspension in a vessel having a three-dimensional geometry approximating the in vivo gross morphology of a tissue of interest, said vessel having attachment surfaces thereon; and allowing the suspension to coalesce; and culturing said coalesced suspension under conditions in which said cells connect to said attachment surfaces, wherein said suspension of cells forms an organized tissue that has a three-dimensional structure that is retained upon implantation of said tissue into a mammal, and wherein the tissue is further comprised of post-mitotic cells, and wherein the protein is produced sufficiently to provide a therapeutic effect to said mammal once the organized tissue is implanted into said mammal.
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33. An organized tissue having a three-dimensional cellular organization of a tissue of interest that is retained upon implantation of said tissue into a mammal, said tissue producing a protein of a type or in an amount not normally produced by a tissue of interest, comprising:
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a plurality of cells, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, wherein said tissue has a three-dimensional geometry approximating the in vivo gross morphology of said tissue of interest, and wherein the organized tissue is further comprised of post-mitotic cells, and; wherein the protein is produced to detectable levels in said tissue.
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34. An organized tissue attached to a surface of a substrate, said tissue producing a protein, comprising:
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a plurality of cells, wherein at least a subset of said cells comprise a foreign DNA sequence operably linked to a promoter and encoding a protein, wherein said cells form an organized tissue having a three-dimensional geometry approximating the in vivo gross morphology of a tissue of interest, and wherein said organized tissue is attached to the surface of a substrate, and wherein the organized tissue is further comprised of post-mitotic cells, and; wherein the protein is produced to detectable levels in said tissue. - View Dependent Claims (35, 36)
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Specification