Genetically modified cells, tissues, and organs for treating disease
Genetically modified cells, tissues, and organs for treating or preventing diseases are disclosed. Also disclosed are methods of making the genetically modified cells and non-human animals.
1. A genetically modified pig comprising an exogenous polynucleotide encoding a human leukocyte antigen G (HLA-G) polypeptide, and wherein the genetically modified pig further comprises a disruption in a gene encoding a glycoprotein galactosyltransferase alpha 1, 3 (GGTA1).
2. The genetically modified pig of claim 1 , wherein the HLA-G polypeptide is a HLA-G1 polypeptide.
3. The genetically modified pig of claim 1 , wherein the exogenous polynucleotide is inserted in the genetically modified pig's genome at a Rosa26 locus.
4. The genetically modified pig of claim 1 , wherein the HLA-G polypeptide has at least 80% homology to SEQ ID NO: 53.
5. The genetically modified pig of claim 1 , further comprising an exogenous nucleotide sequence encoding a human β2-microglobulin polypeptide, a nucleotide sequences encoding a human leukocyte antigen E (HLA-E) polypeptide, or a combination thereof.
6. The genetically modified pig of claim 2 , further comprising a disruption in one or more genes, wherein the one or more genes encode a NOD-like receptor family CARD domain containing 5 (NLRC5), a putative cytidine monophosphatase-N-acetylneuraminic acid hydroxylase-like protein (CMAH), a beta-1,4-N-acetylgalactosaminyltransferase (B4GALNT2) or a combination thereof.
7. A genetically modified pig cell, tissue, or organ comprising an exogenous polynucleotide encoding a human leukocyte antigen G (HLA-G) polypeptide, and wherein the genetically modified pig cell, tissue, or organ further comprises a disruption in a gene encoding a glycoprotein galactosyltransferase alpha 1, 3 (GGTA1).
8. A kidney, pancreas, or pancreatic tissue isolated from a genetically modified pig comprising an exogenous polynucleotide encoding a human leukocyte antigen G (HLA-G) polypeptide, and wherein the genetically modified pig further comprises a disruption in a gene encoding a glycoprotein galactosyltransferase alpha 1, 3 (GGTA1).
9. A method for treating a condition in a subject in need thereof comprising:
a) administering a tolerizing vaccine to the subject; and
b) transplanting a genetically modified cell, tissue, or organ to the subject to treat the condition, wherein the genetically modified cell, tissue, or organ is from a donor pig comprising an exogenous polynucleotide encoding a human leukocyte antigen G (HLA-G) polypeptide, and wherein the donor pig further comprises a disruption in a gene encoding a glycoprotein galactosyltransferase alpha 1, 3 (GGTA1);
wherein the condition is a diabetes, and wherein the tolerizing vaccine comprises an apoptotic or a non-apoptotic pig cell.
10. The method of claim 9 , comprising transplanting the genetically modified cell, wherein the genetically modified cell is part of a population of cells expanded ex vivo or in vitro outside the donor pig prior to transplanting.
11. The method of claim 9 , wherein the genetically modified cell, tissue, or organ further comprises a disruption in one or more genes, wherein the one or more genes encode a NOD-like receptor family CARD domain containing 5 (NLRC5), a putative cytidine monophosphatase-N-acetylneuraminic acid hydroxylase-like protein (CMAH), a beta-1,4-N-acetylgalactosaminyltransferase (B4GALNT2) or a combination thereof.
12. The method of claim 9 , wherein the exogenous polynucleotide is inserted in the donor pig's genome at a Rosa26 locus.
13. The method of claim 9 , wherein the HLA-G polypeptide has at least 80% homology to SEQ ID NO: 53.
14. The method of claim 9 , wherein the genetically modified cell, tissue, or organ further comprises an exogenous nucleotide sequence encoding a human β2-microglobulin polypeptide, an exogenous nucleotide sequences encoding a human leukocyte antigen E (HLA-E) polypeptide, or a combination thereof.
15. The method of claim 9 , wherein the tolerizing vaccine comprises the apoptotic pig cell, wherein the apoptotic pig cell is treated with a carbodiimide derivative, and wherein the apoptotic pig cell is a leukocyte, a splenocyte, or a B-cell lymphocyte.
16. The method of claim 9 , further comprising administering to the subject one or more pharmaceutical agents that inhibit T cell activation, B cell activation, dendritic cell activation, or any combination thereof, wherein the one or more pharmaceutical agents comprise an anti-CD40 agent or an anti-CD40L agent.
17. A method for making a genetically modified pig comprising:
a) obtaining a porcine fetal fibroblast cell comprising (i) an exogenous polynucleotide encoding a human leukocyte antigen G (HLA-G) polypeptide or (ii) a disrupted gene encoding a glycoprotein galactosyltreansferase alpha 1,3 (GGTA1);
b) genetically modifying said porcine fetal fibroblast cell using CRISPR/Cas by (i) disrupting a gene encoding GGTA1 in the porcine fetal fibroblast cell comprising the exogenous polynucleotide encoding the HLA-G polypeptide, or (ii) inserting an exogenous polynucleotide encoding an HLA-G polypeptide in the porcine fetal fibroblast cell comprising the disrupted gene encoding the GGTA1;
c) transferring a nucleus of the porcine fetal fibroblast cell to a porcine enucleated oocyte to generate an embryo; and
d) transferring the embryo into a surrogate pig and growing the embryo to the genetically modified pig in the surrogate pig.
18. The method of claim 17 , wherein the porcine fetal fibroblast cell further comprises a disruption in one or more genes, wherein the one or more genes encode a NOD-like receptor family CARD domain containing 5 (NLRC5), a putative cytidine monophosphatase-N-acetylneuraminic acid hydroxylase-like protein (CMAH), a beta-1,4-N-acetylgalactosaminyltransferase (B4GALNT2), or a combination thereof.
19. The method of claim 17 , wherein the HLA-G polypeptide has at least 80% homology to SEQ ID NO: 53.
20. The method of claim 17 , wherein the porcine fetal fibroblast cell further comprises an exogenous nucleotide sequence encoding a human β2-microglobulin polypeptide, an exogenous nucleotide sequences encoding a human leukocyte antigen E (HLA-E) polypeptide, or a combination thereof.
21. The genetically modified pig of claim 1 , wherein the HLA-G polypeptide comprises at least 90% of the amino acid sequence of SEQ ID NO: 53.