US2020048659A1PendingUtilityA1
THERAPEUTIC USES OF GENOME EDITING WITH CRISPR/Cas SYSTEMS
Est. expiryJul 9, 2033(~7 yrs left)· nominal 20-yr term from priority
A61P 7/00A61P 7/06A61P 37/02A61K 38/465C12N 15/907A61K 48/00C12N 9/22C12N 2800/80
60
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
Disclosed herein are methods, compositions, and kits for high efficiency, site-specific genomic editing of cells for treating or preventing genetic blood disorders.
Claims
exact text as granted — not AI-modified1 .- 12 . (canceled)
13 . A method for altering a target beta thalassemia-associated polynucleotide sequence in a cell comprising contacting the beta thalassemia-associated polynucleotide sequence with a clustered regularly interspaced short palindromic repeats-associated (Cas) protein and from one to two ribonucleic acids, wherein the ribonucleic acids direct Cas protein to and hybridize to a target motif of the target beta thalassemia-associated polynucleotide sequence, wherein the target beta thalassemia-associated polynucleotide sequence is cleaved, and wherein the efficiency of alteration is from about 50% to about 80%.
14 .- 18 . (canceled)
19 . The method according to claim 13 , wherein the Cas protein is Streptococcus pyogenes Cas9 protein or a functional portion thereof selected from the group consisting of a DNA binding domain, at least one RNA binding domain, a helicase domain, and an endonuclease domain.
20 .- 21 . (canceled)
22 . The method according to claim 13 , wherein the Cas protein is Cas9 protein from any bacterial species or functional portion thereof selected from the group consisting of a DNA binding domain, at least one RNA binding domain, a helicase domain, and an endonuclease domain.
23 .- 24 . (canceled)
25 . The method according to claim 13 , wherein the Cas protein is complexed with the one to two ribonucleic acids.
26 .- 32 . (canceled)
33 . The method according to claim 13 , wherein the target motif is G(N)19NGG.
34 .- 41 . (canceled)
42 . The method according to claim 13 , wherein the alteration results in reduced expression of the target polynucleotide sequence, a knock out of the target polynucleotide sequence, or correction of the target polynucleotide sequence from an undesired sequence to a desired sequence.
43 .- 57 . (canceled)
58 . The method according to claim 13 , wherein the cell is selected from the group consisting of a peripheral blood cell, a stem cell, a pluripotent cell, a hematopoietic stem cell, a CD34+ cell, a CD34+ mobilized peripheral blood cell, a CD34+ cord blood cell, a CD34+ bone marrow cell, a CD34 + CD38-Lineage-CD90 + CD45RA − cell, a primary human cell, a non-transformed human cell, and combinations thereof.
59 .- 107 . (canceled)
108 . The method according to claim 13 , wherein the target polynucleotide sequence is HBB.
109 . The method according to claim 108 , wherein at least one of the one to two ribonucleic acids comprises a sequence selected from the group consisting of SEQ ID NOS. 814-908, or at least a 12 nucleotide fragment thereof.
110 . The method according to claim 108 , wherein at least one of the one to two ribonucleic acids comprises a sequence with a single nucleotide mismatch to a sequence selected from the group consisting of SEQ ID NOS. 814-908, or at least a 12 nucleotide fragment thereof.
111 .- 173 . (canceled)
174 . The method according to claim 13 , wherein the one to two ribonucleic acids hybridize to a target motif that contains at least one mismatch when compared with all other genomic nucleotide sequences in the cell.
175 .- 193 . (canceled)
194 . The method according to claim 13 , wherein at least one of the ribonucleic acids is a modified ribonucleic acid comprising one to two modified nucleotides selected from the group consisting of pseudouridine, 5-methylcytodine, 2-thio-uridine, 5-methyluridine-5′-triphosphate, 4-thiouridine-5′-triphosphate, 5,6-dihydrouridine-5′-triphosphate, and 5-azauridine-5′-triphosphate.
195 .- 272 . (canceled)
273 . The method according to claim 13 , wherein the cell was selected for Cas protein expression.
274 . The method according to claim 13 , wherein the target motif of the target beta thalassemia-associated polynucleotide sequence comprises nucleotides located between position 5246806 and position 5248263 of human chromosome 11.Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.