Nanoparticle-mediated gene delivery, genomic editing and ligand-targeted modification in various cell populations
First Claim
1. A nanoparticle comprising:
- a core polyplex comprising a cationic polymer, a cationic polypeptide, a polynucleotide, and one or more anionic polymers, wherein the one or more anionic polymers is selected from the group consisting of poly(D-glutamic acid), a glycosaminoglycan, a glycoprotein, a polysaccharide, poly(mannuronic acid), poly(guluronic acid), heparin, heparin sulfate, chondroitin, chondroitin sulfate, keratan, keratan sulfate, aggrecan, poly(glucosamine), and any combination of two or more of the foregoing;
a silica coating on the core polyplex; and
poly(L-arginine), a vasoactive endothelial growth factor peptide, or both attached to an outer surface of said silica coating;
whereinthe cationic polymer and the one or more anionic polymers are not covalently bound to each other.
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Abstract
An improved nanoparticle for transfecting cells is provided. The nanoparticle includes a core polyplex and a silica coating on the core polyplex and, optionally, a polymer attached to an outer surface of the silica coating, where the polyplex includes an anionic polymer, a cationic polymer, a cationic polypeptide, and a polynucleotide. Also provided is an improved method of modifying intracellular polynucleotides. The method includes contacting a cell with a nanoparticle that includes a core polyplex and a silica coating on the core polyplex and, optionally, a polymer attached to an outer surface of the silica coating, where the polyplex includes an anionic polymer, a cationic polymer, a cationic polypeptide, and a polynucleotide.
23 Citations
23 Claims
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1. A nanoparticle comprising:
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a core polyplex comprising a cationic polymer, a cationic polypeptide, a polynucleotide, and one or more anionic polymers, wherein the one or more anionic polymers is selected from the group consisting of poly(D-glutamic acid), a glycosaminoglycan, a glycoprotein, a polysaccharide, poly(mannuronic acid), poly(guluronic acid), heparin, heparin sulfate, chondroitin, chondroitin sulfate, keratan, keratan sulfate, aggrecan, poly(glucosamine), and any combination of two or more of the foregoing; a silica coating on the core polyplex; and poly(L-arginine), a vasoactive endothelial growth factor peptide, or both attached to an outer surface of said silica coating;
whereinthe cationic polymer and the one or more anionic polymers are not covalently bound to each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A nanoparticle comprising:
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a core polyplex comprising a cationic polymer, a cationic polypeptide, a polynucleotide, and one or more anionic polymers, wherein the one or more anionic polymers is selected from the group consisting of poly(D-glutamic acid), a glycosaminoglycan, a glycoprotein, a polysaccharide, poly(mannuronic acid), poly(guluronic acid), heparin, heparin sulfate, chondroitin, chondroitin sulfate, keratan, keratan sulfate, aggrecan, poly(glucosamine), and any combination of two or more of the foregoing; and a silica coating on the core polyplex;
whereinthe cationic polymer and the one or more anionic polymers are not covalently bound to each other. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A nanoparticle comprising:
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a core polyplex comprising poly(D-glutamic acid), a cationic polymer comprising poly(ethylenimine) or poly(L-arginine), or both, a polynucleotide, and a histone tail peptide, a silica coating on the core polyplex, and poly(L-arginine), a vasoactive endothelial growth factor peptide, or both attached to an outer surface of said silica coating;
whereinthe poly(D-glutamic acid) and the cationic polymer are not covalently bound to each other.
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Specification