Patents Assigned to ProQR Therapeutics II B.V.
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Patent number: 12275937Abstract: The invention relates to editing oligonucleotides (EONs) that carry stereospecific phosphorothioate internucleotide linkage modifications at specified positions and that do not carry such modifications on positions that would lower RNA editing efficiency. The selection of positions that should or should not carry a phosphorothioate Rp and/or Sp configuration modification is based on computational modelling that revealed incompatibilities of the stereospecific linkages with the intermolecular oxygen-mediated hydrogen bond network.Type: GrantFiled: May 13, 2019Date of Patent: April 15, 2025Assignee: ProQR Therapeutics II B.V.Inventor: Julien Auguste Germain Boudet
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Patent number: 12203072Abstract: The invention relates to antisense oligonucleotides that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA sequence in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hairpin or stem-loop structure, and wherein said oligonucleotide comprises a non-complementary nucleotide in a position opposite to the nucleotide to be edited in the target RNA sequence.Type: GrantFiled: March 17, 2023Date of Patent: January 21, 2025Assignee: ProQR Therapeutics II B.V.Inventors: Janne Juha Turunen, Antti Aalto, Bart Klein, Lenka Van Sint Fiet, Julien Auguste Germain Boudet
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Patent number: 12180471Abstract: The invention relates to the fields of medicine and biotechnology. In particular, it relates to novel antisense oligonucleotides (AONs) that may be used in the treatment, prevention and/or delay of Stargardt disease and/or ABCA4-associated eye disease. More in particular, the invention relates to AONs that are used in inhibiting or blocking exon 39 skipping in the human ABCA4 pre-mRNA.Type: GrantFiled: April 13, 2018Date of Patent: December 31, 2024Assignee: ProQR Therapeutics II B.V.Inventors: Aliye Seda Yilmaz-Elis, Peter Adamson, Kalyana Chakravarthi Dulla, Iris Antoinette Ernestine Schulkens
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Publication number: 20240417721Abstract: The invention relates to antisense oligonucleotides that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hair-pin or stem-loop structure, and wherein said oligonucleotide comprises a cytidine (a non-complementary nucleotide) or a uridine in a position opposite to the target adenosine to be edited in the target RNA region.Type: ApplicationFiled: May 3, 2024Publication date: December 19, 2024Applicant: ProQR Therapeutics II B.V.Inventors: Janne Juha TURUNEN, Petra Geziena DE BRUIJN, Bart KLEIN, Roxana Simona REDIS, Lenka VAN SINT FIET
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Publication number: 20240271131Abstract: The invention relates to antisense oligonucleotides that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA sequence in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hairpin or stem-loop structure, and wherein said oligonucleotide comprises a non-complementary nucleotide in a position opposite to the nucleotide to be edited in the target RNA sequence.Type: ApplicationFiled: March 17, 2023Publication date: August 15, 2024Applicant: ProQR Therapeutics II B.V.Inventors: Janne Juha TURUNEN, Antti AALTO, Bart KLEIN, Lenka VAN SINT FIET, Julien Auguste Germain BOUDET
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Publication number: 20240229030Abstract: The invention relates to nucleic acid molecules for pseudouridylation of a target uridine in a target RNA in a mammalian cell, wherein the nucleic acid molecule comprises a guide region capable of forming a partially double stranded nucleic acid complex with the target RNA comprising the target uridine, wherein the partially double stranded nucleic acid complex is capable of engaging a mammalian pseudouridylation enzyme, wherein the guide region assists in positioning the target uridine in the partially double stranded nucleic acid complex for it to be converted to a pseudouridine by the mammalian pseudouridylation enzyme.Type: ApplicationFiled: September 28, 2023Publication date: July 11, 2024Applicants: University of Rochester, ProQR Therapeutics II B.V.Inventors: Bart KLEIN, Janne Juha TURUNEN, Lenka VAN SINT FIET, Pedro Duarte Morais Fernandes Arantes DA SILVA, Julien Auguste Germain BOUDET, Yi-Tao YU, Hironori ADACHI, Meemanage De ZOYSA
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Patent number: 12018257Abstract: The invention relates to antisense oligonucleotides that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hairpin or stem-loop structure, and wherein said oligonucleotide comprises a cytidine (a non-complementary nucleotide) or a uridine in a position opposite to the target adenosine to be edited in the target RNA region.Type: GrantFiled: April 6, 2023Date of Patent: June 25, 2024Assignee: ProQR Therapeutics II B.V.Inventors: Janne Juha Turunen, Petra Geziena De Bruijn, Bart Klein, Roxana Simona Redis, Lenka Van Sint Fiet
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Publication number: 20240141336Abstract: RNA editing is achieved using oligonucleotide constructs comprising (i) a targeting portion specific for a target nucleic acid sequence to be edited and (ii) a recruiting portion capable of binding and recruiting a nucleic acid editing entity naturally present in the cell. The nucleic acid editing entity, such as ADAR, is redirected to a preselected target site by means of the targeting portion, thereby promoting editing of preselected nucleotide residues in a region of the target RNA which corresponds to the targeting portion.Type: ApplicationFiled: June 8, 2023Publication date: May 2, 2024Applicant: ProQR Therapeutics II B.V.Inventors: Bart KLEIN, Gerardus Johannes PLATENBURG
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Publication number: 20240132890Abstract: The invention relates to nucleic acid molecules for pseudouridylation of a target uridine in a target RNA in a mammalian cell, wherein the nucleic acid molecule comprises a guide region capable of forming a partially double stranded nucleic acid complex with the target RNA comprising the target uridine, wherein the partially double stranded nucleic acid complex is capable of engaging a mammalian pseudouridylation enzyme, wherein the guide region assists in positioning the target uridine in the partially double stranded nucleic acid complex for it to be converted to a pseudouridine by the mammalian pseudouridylation enzyme.Type: ApplicationFiled: September 27, 2023Publication date: April 25, 2024Applicants: University of Rochester, ProQR Therapeutics II B.V.Inventors: Bart KLEIN, Janne Juha TURUNEN, Lenka VAN SINT FIET, Pedro Duarte Morais Fernandes Arantes DA SILVA, Julien Auguste Germain BOUDET, Yi-Tao YU, Hironori ADACHI, Meemanage De ZOYSA
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Patent number: 11920132Abstract: Antisense oligonucleotides target the mutation in intron 26 of the CEP290 gene and reduce inclusion of the aberrant exon into the CEP290 mRNA. The oligonucleotides include no more than 3 consecutive guanosines, have no more than 60% guanosine nucleobases, include at most one CpG sequence, and/or do not have the potential to form a hairpin comprising 3 or more consecutive complementary base pairs.Type: GrantFiled: January 8, 2021Date of Patent: March 5, 2024Assignee: ProQR Therapeutics II B.V.Inventors: Patricia Coromoto Biasutto, Hee Lam Chan
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Patent number: 11866702Abstract: The invention relates to nucleic acid molecules for pseudouridylation of a target uridine in a target RNA in a mammalian cell, wherein the nucleic acid molecule comprises a guide region capable of forming a partially double stranded nucleic acid complex with the target RNA comprising the target uridine, wherein the partially double stranded nucleic acid complex is capable of engaging a mammalian pseudouridylation enzyme, wherein the guide region assists in positioning the target uridine in the partially double stranded nucleic acid complex for it to be converted to a pseudouridine by the mammalian pseudouridylation enzyme.Type: GrantFiled: March 27, 2019Date of Patent: January 9, 2024Assignees: University of Rochester, ProQR Therapeutics II B.V.Inventors: Bart Klein, Janne Juha Turunen, Lenka Van Sint Fiet, Pedro Duarte Morais Fernandes Arantes Da Silva, Julien Auguste Germain Boudet, Yi-Tao Yu, Hironori Adachi, Meemanage De Zoysa
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Patent number: 11851656Abstract: The invention relates to antisense oligonucleotides that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA sequence in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hairpin or stem-loop structure, and wherein said oligonucleotide comprises a non-complementary nucleotide in a position opposite to the nucleotide to be edited in the target RNA sequence.Type: GrantFiled: January 20, 2021Date of Patent: December 26, 2023Assignee: ProQR Therapeutics II B.V.Inventors: Janne Juha Turunen, Antti Aalto, Bart Klein, Lenka Van Sint Fiet, Julien Auguste Germain Boudet
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Patent number: 11781134Abstract: RNA editing is achieved using oligonucleotide constructs comprising (i) a targeting portion specific for a target nucleic acid sequence to be edited and (ii) a recruiting portion capable of binding and recruiting a nucleic acid editing entity naturally present in the cell. The nucleic acid editing entity, such as ADAR, is redirected to a preselected target site by means of the targeting portion, thereby promoting editing of preselected nucleotide residues in a region of the target RNA which corresponds to the targeting portion.Type: GrantFiled: March 3, 2020Date of Patent: October 10, 2023Assignee: ProQR Therapeutics II B.V.Inventors: Bart Klein, Gerardus Johannes Platenburg
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Publication number: 20230279392Abstract: The invention relates to antisense oligonucleotide that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hairpin or stem-loop structure, and wherein said oligonucleotide comprises a cytidine (a non-complementary nucleotide) or a uridine in a position opposite to the target adenosine to be edited in the target RNA region.Type: ApplicationFiled: April 6, 2023Publication date: September 7, 2023Applicant: ProQR Therapeutics II B.V.Inventors: Janne Juha TURUNEN, Petra Geziena DE BRUIJN, Bart KLEIN, Roxana Simona REDIS, Lenka VAN SINT FIET
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Patent number: 11649454Abstract: The invention relates to antisense oligonucleotides that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hairpin or stem-loop structure, and wherein said oligonucleotide comprises a cytidine (a non-complementary nucleotide) or a uridine in a position opposite to the target adenosine to be edited in the target RNA region.Type: GrantFiled: March 26, 2021Date of Patent: May 16, 2023Assignee: ProQR Therapeutics II B.V.Inventors: Janne Juha Turunen, Petra Geziena De Bruijn, Bart Klein, Roxana Simona Redis, Lenka Van Sint Fiet
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Patent number: 11479771Abstract: The invention relates to the fields of medicine and immunology. In particular, it relates to novel antisense oligonucleotides (AONs) that may be used in the treatment, prevention and/or delay of Usher syndrome type II and/or USH2A-associated non syndromic retina degeneration.Type: GrantFiled: February 7, 2020Date of Patent: October 25, 2022Assignee: ProQR Therapeutics II B.V.Inventors: Hester Catharina Van Diepen, Janne Juha Turunen, Hee Lam Chan
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Patent number: 11274300Abstract: The invention relates to double stranded oligonucleotide complexes comprising an antisense oligonucleotide (AON) and a complementary sense oligonucleotide (SON), for use in the deamination of a target adenosine in a sense target RNA sequence in a cell by an ADAR enzyme, wherein at least the nucleotide in the AON that is directly opposite the target adenosine in the target RNA sequence does not have a 2?-O-alkyl modification and the SON comprises nucleotides that are at least complementary to all nucleotides in the AON that do not have a 2?-O-alkyl modification. The invention further relates to methods of RNA editing using the AON/SON complexes of the invention.Type: GrantFiled: January 18, 2018Date of Patent: March 15, 2022Assignee: ProQR Therapeutics II B.V.Inventors: Antti Aalto, Janne Juha Turunen
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Patent number: 11123360Abstract: The invention relates to the fields of medicine and immunology. In particular, it relates to novel antisense oligonucleotides that may be used in the treatment, prevention and/or delay of Usher Syndrome type II and/or USH2A-associated non syndromic retina degeneration, especially by skipping a pseudo exon (PE40) between exon 40 and 41 in the human USH2Agene.Type: GrantFiled: March 6, 2020Date of Patent: September 21, 2021Assignee: ProQR Therapeutics II B.V.Inventors: Hester Catharina Van Diepen, Hee Lam Chan, Janne Juha Turunen
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Publication number: 20210230590Abstract: The invention relates to editing oligonucleotides (EONs) that carry stereospecific phosphorothioate internucleotide linkage modifications at specified positions and that do not carry such modifications on positions that would lower RNA editing efficiency. The selection of positions that should or should not carry a phosphorothioate Rp and/or Sp configuration modification is based on computational modelling that revealed incompatibilities of the stereospecific linkages with the intermolecular oxygen-mediated hydrogen bond network.Type: ApplicationFiled: May 13, 2019Publication date: July 29, 2021Applicant: ProQR Therapeutics II B.V.Inventor: Julien Auguste Germain Boudet
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Patent number: 10988763Abstract: The invention relates to antisense oligonucleotides that are capable of bringing about specific editing of a target nucleotide (adenosine) in a target RNA in a eukaryotic cell, wherein said oligonucleotide does not, in itself, form an intramolecular hairpin or stem-loop structure, and wherein said oligonucleotide comprises a cytidine (a non-complementary nucleotide) or a uridine in position opposite to the target adenosine to be edited in the target RNA region.Type: GrantFiled: June 22, 2017Date of Patent: April 27, 2021Assignee: PROQR THERAPEUTICS II B.V.Inventors: Janne Juha Turunen, Petra Geziena De Bruijn, Bart Klein, Roxana Simona Redis, Lenka Van Sint Fiet