WO2001005990A1 - Strukturprotein von adeno-assoziiertem virus mit veränderter antigenität, seine herstellung und verwendung - Google Patents
Strukturprotein von adeno-assoziiertem virus mit veränderter antigenität, seine herstellung und verwendung Download PDFInfo
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- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/85—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
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- C07K14/005—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from viruses
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- C12N2750/14011—Parvoviridae
- C12N2750/14111—Dependovirus, e.g. adenoassociated viruses
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- C12N2750/00011—Details
- C12N2750/14011—Parvoviridae
- C12N2750/14111—Dependovirus, e.g. adenoassociated viruses
- C12N2750/14141—Use of virus, viral particle or viral elements as a vector
- C12N2750/14143—Use of virus, viral particle or viral elements as a vector viral genome or elements thereof as genetic vector
Definitions
- Structural protein of adeno-associated virus with altered antigenicity its
- the present invention relates to an adeno-associated virus (AAV) structural protein which contains at least one modification which brings about a reduction in antigenicity, its production and use.
- AAV adeno-associated virus
- the AAV virus belongs to the parvovirus family. These are characterized by an icosahedral, non-enveloped capsid with a diameter of 18 to 30 ⁇ m, which contains a linear, single-stranded DNA of approximately 5 kb.
- the host cell For efficient multiplication of AAV, the host cell must be co-infected with helper viruses, for example with adenoviruses, herpes viruses or vaccinia viruses.
- helper viruses for example with adenoviruses, herpes viruses or vaccinia viruses.
- AAV goes into a latency state, whereby the virus genome is able to integrate stably into the host cell genome.
- the ability of AAV to integrate into the host genome makes it particularly interesting as a transduction vector for mammalian cells.
- inverted Terminal Repeats The two approximately 145 bp long inverted terminal repeat sequences (ITR: "Inverted Terminal Repeats") are generally sufficient for the vector functions. They carry the "eis" signals necessary for replication, packaging and integration into the host cell genome.
- a helper plasmid which carries the genes for non-structural proteins (Rep proteins) and for structural proteins (Cap proteins) is placed in cells suitable for packaging, e.g. HeLa or 293 cells, which are then infected, for example, with adenovirus. After a few days, a lysate is obtained which contains recombinant AAV particles.
- Suitable helper plasmids are e.g. in Chiorini et al., (1995) Hum. Gene Ther. 6, 1531-1541 or Girod et al. (1999), Nat. Med.
- the AAV capsid consists of three different proteins: VP1, VP2 and VP3, the relative proportions of which are 5% VP1, 5% VP2 and 90% VP3.
- the AAV capsid genes are located at the right end of the AAV genome and are encoded by overlapping sequences of the same open reading frame (ORF) using different start codons and two differently spliced variants of a transcript.
- the VPl gene contains the whole VP2 Gene sequence, which in turn contains the entire VP3 gene sequence with a specific N-terminal region. The fact that the overlapping reading frames code for all three AAV capsid proteins is responsible for the obligatory expression of all capsid proteins, albeit in different proportions.
- the molecular masses of the capsid proteins are 87 kD for VP1, 73 kD for VP2 and 62 kD for VP3.
- the sequences of the capsid genes are described in Srivastava, A. et al. (1983), J. Virol., 45, 555-564; Muzyczka, N. (1992), Curr. Top. Micro. Immunol., 158, 97-129, Ruffing, N. et al. (1992) J. Virol., 66, 6922-6930 or Rutledge, E.A. et al. (1998) J. Virol. 72, 309-319, for example.
- the physical and genetic map of the AAV genome is described, for example, in Kotin, R. M. (1994), Human Gene Therapy, 5, 793-801.
- AAV2 human AAV serotype 2
- AAV2 human AAV serotype 2
- antigen refers to substances that trigger a specific immune response after being introduced into the human and animal organism. This manifests itself either in the formation of antibodies (humoral immune response) and the development of a cell-mediated immunity (cellular immune response) or a specific immunological tolerance.
- a prerequisite for an immune response is generally that the antigen is foreign to the organism it is recognized that it has a MW> 1 kDa and belongs to the class of proteins or polysaccharides, more rarely deoxyribonucleic acids or lipids. More complex structures such as bacteria, viruses or erythrocytes (particulate antigens) are generally even more effective antigens, ie they have high antigenicity. Antigenicity is therefore understood in the sense of this invention to be the ability to interact (to be recognized) with the immune system (humoral and cellular) by binding. The term also includes immunogenicity, ie the ability to trigger an immune response. In the case of viruses in particular, antigenic structures for antibody binding can in principle not only be determined by the primary structure but also by the secondary, tertiary or quaternary structure of the capsid proteins or capsids.
- AAV-capsid fusion proteins in which, for example, the DNA coding for a clinically relevant antigen is inserted into the DNA coding for a capsid protein without this interfering with the formation of the capsid, and the construct as AAV Capsid fusion protein is expressed.
- the clinically relevant antigens are epitopes derived from bacteria (e.g. Salmonella), viruses (e.g. env-HTV) or tumor cells.
- the resulting AAV-capsid fusion proteins are said to trigger an immune response, that is to say to increase the antigenicity of the AAV viruses.
- a reduced antigenicity of the AAV is not discussed in the prior art.
- AAV vectors - especially in gene therapy - a reduced antigenicity compared to the wild type or to AAV vectors derived from the wild type is advantageous.
- wild-type AAV also has antigen determinants.
- anti-AAV2 Ig positive individuals in whom therapy with AAV vectors of a wild-type antigenicity is inevitably difficult or impossible.
- a patient with repeated therapy with AAV vectors could increasingly develop a humoral and / or cellular immune response against the AAV vectors used. Such immunization would reduce or prevent the success of therapy. So the lower the antigenicity of a recombinant AAV virus is or the more its antigenicity differs from a wild-type virus or a previously used recombinant AAV virus, the more promising its therapeutic use appears.
- the object of the present invention was therefore to reduce the antigenicity of the AAV virus, in particular of a structural protein, compared to the wild type.
- modification should develop AAV vectors that enable specific and efficient gene transfer, but better or completely escape the immune response.
- the modification should therefore preferably be carried out in such a way that the infectivity of the virus is not significantly reduced or at least remains at the same time.
- structural or capsid proteins can be modified by AAV in such a way that the antigenicity is reduced thereby, the infectivity also not being substantially reduced, at least being retained.
- the present invention therefore relates to a structural protein of AAV which contains at least one modification which brings about a reduction in the antigenicity.
- the reduction in antigenicity means the reduction in antibody formation and / or antibody binding by
- a reduced antigenicity reduces the immunization of an organism through therapy with an AAV vector.
- One is also seen absolutely, i.e. on average the strength of the immune response, just changed
- Antigenicity in the sense of this invention can be regarded as reduced if the antibody according to the invention does not trigger an antibody (immune) response that would have been triggered by the wild type. Such, in absolute terms, only changed
- Antigenicity can lead to a reduced immunization if AAV vectors according to the invention with different antigenicity are used in successive therapies.
- the changed antigenicity can relate to both the humoral and the cellular immune response.
- the reduced antigenicity can be demonstrated for the humoral immune response, for example, by the fact that an antibody which can bind to the unmodified (wild-type) AAV capsid protein or AAV capsid, the modified AAV capsid protein or AAV capsid according to the invention no longer recognizes or much worse.
- detection can be performed by standard methods such as an enzyme linked immuno-absorbent assay (ELISA).
- ELISA enzyme linked immuno-absorbent assay
- a suitable antibody is, for example, the A20 monoclonal antibody (see Wistuba, A. et al. (1997) J. Virol., 71, 1341-52), which specifically only recognizes fully assembled AAV2 capsids of the wild type, but no free capsid proteins.
- AAV-specific immune cells are not stimulated as strongly by antigen-presenting cells that have been infected with particles from modified structural proteins as by antigen-presenting cells that are from particles original structural proteins were infected.
- This procedure is analogous to the procedures for vaccinia and adenoviruses (Ta ⁇ ey, I. et al., (1994), Immunology, 81, 222-7; Nimako, M. et al., (1997), Cancer Res. 57 , 4855-61).
- the stimulation of the immune cells can be measured quantitatively, for example, by a cytokine assay (Chapters 6.2 to 6.24 in Current Protocols in Immunology (1999), edited by Coligan J.E. et al., John Wiley & Sons).
- infectivity means the ability to transduce cells.
- the structural protein according to the invention is preferably further for particle formation, i.e. capable of forming an icosahedral capsid, especially in the form of an AAV capsid, since particles or capsids as carriers of selected compounds, e.g. rAAV transduction vectors are particularly suitable.
- the formation of particles can be detected, for example, by electron microscopy. Another proof is the sedimentation behavior during a cesium chloride density gradient centrifugation with subsequent, optional proof of viral DNA contained in the particles.
- the modification can be in the VP1, VP2 and / or W3 structural protein, the VP1 and / or the VP3 structural protein being preferred.
- Structural protein can be derived from all AAV serotypes, in particular from human serotypes, preferably from AAV1, AAV2, AAV3, AAV4, AAV5 and / or AAV6, especially from AAV2, AAV3 and / or AAV6.
- the modification (s) is / are preferably located on the virus surface.
- CPV Canine Parvovirus
- AAV2 sequences and structures are comparable.
- Known crystal structures of parvoviruses such as parvovirus B19 or CPV can therefore preferably be used and protein domains which are located on the virus surface can be identified with the aid of homology comparisons.
- a computer-aided comparison between CPV and AAV2 or parvovirus B19 and AAV2 has surprisingly reproducibly led to the identification of loops in VP3, the sequence of which varies, i.e.
- the modification (s) are located at the N-terminus of the structural protein, since it has been found that, for example with parvovirus B19, the N-terminus is located on the cell surface.
- Another possibility for determining the surface-localized regions of the structural proteins is a comparison of the nucleic acid sequences coding for the capsids from different AAV serotypes.
- Known DNA sequences of different AAV serotypes such as AAV1, AAV2, AAV3, AAV4, AAV5 or AAV6, can be used for this purpose
- Structural analyzes of possible capsid morphologies of, for example, AAV2 are used, it being possible to calculate possible tertiary structures ab initio and sequence regions can be assigned to the inner or outer capsid regions on the basis of generally known amino acid properties.
- possible insertion sites in the VP3 region of the AAV2 capsid could be determined, which made it possible, for example, to insert peptides and express them on the virus surface (see below).
- a modification z. B. understood a change in the capsid proteins, which is achieved by covalent or non-covalent binding of a molecule to one or more amino acids or amino acid sequences.
- a capsid protein e.g. B. by covalent binding of mono- or oligosaccharides, biotin or other high molecular weight compounds to one or more amino acids.
- the modification can also be achieved by covalent bonding of low molecular weight compounds such as a hydroxyl group to one or more amino acids.
- molecules or molecule complexes can be attached to the capsid proteins via non-covalent binding and thus shield antigenic regions. For example, this may be the antigen binding site of immunoglobulins, e.g. B.
- an F ab fragment or other molecules that have a high affinity for the antigenic region or neighboring regions.
- Such molecules can be screened for example from molecular banks with regard to their affinity. If the three-dimensional structure of the antigenic region or the capsid protein is known, a number of potentially binding molecules can be designed and synthesized, which can then be tested for their affinity.
- Modification also means, for example, one or more mutations, that is to say changes in the sequence of the amino acids.
- mutation includes e.g. B. a point mutation, a mutation of several amino acids, one or more deletion (s), one or more insertion (s) or a combination of these mutations.
- the point mutation or the mutation of several amino acids can lie within T or B cell epitopes and the modification can simultaneously consist of point mutations, mutations of several amino acids, insertions and / or deletions.
- protein or peptide is preferably immunosuppressive
- the peptide can consist of, for example, 5 to 30 amino acids, preferably 8 to 20 amino acids and in particular 10 to 18 amino acids.
- the For example, peptide has the sequence QAGTFALRGDNPQG or a sequence that is highly homologous to it.
- a structural protein according to the invention which contains at least one further modification is particularly preferred. This is to be understood to mean that, in addition to a modification which brings about a reduction in the antigenicity of the virus, the structural protein also contains a further modification which does not necessarily also bring about a reduction in the antigenicity of the virus. A further modification which brings about a change, preferably an increase, in the infectivity of the virus is particularly preferred here.
- the further modification (s) represent one or more deletions and / or one or more insertions in the structural protein or combinations of these modifications.
- the insertion is preferably the insertion of a cell membrane receptor ligand, a Rep protein or Peptide, for example in the form of a Rep domain, an immunosuppressive protein or peptide and / or a protein or peptide with a signal for double-strand synthesis of a transgene or foreign gene.
- cytokines examples include Integrins, cytokines or receptor binding domains of cytokines, integrins or growth factors, such as e.g. GM-CSF, EL-2, IL-12, CD40L, TNF, NGF, PDGF or EGF, single-chain antibodies binding to cell surface receptors, so-called “single chain” antibodies (scFv), for example to the surface receptors CD40, CD40L, B7, CD28 or CD34-binding single-chain antibodies, or epitopes or receptor binding sites which, for example, in turn are derived from certain antibodies, for example anti-CD40L monoclonal antibodies, or from chemical substances or hormones, for example Catecholamines.
- scFv single chain antibodies
- antibody-binding structures such as Protein A, Protein G or anti-Fc antibody, or parts thereof, inserted.
- Specific antibodies against certain cell surface structures are in turn coupled to these.
- the modification (s) is (are) carried out by one or more insertions at the Xhol interface of the VP1-encoding nuclear acid and in one another preferred embodiment at the BsrBI site of the VP1-encoding nucleic acid.
- a further preferred embodiment of the structural protein according to the invention results from a deletion between the BsrBI-HindII sites of the VP1-encoding nucleic acid and one or more insertions, preferably at the site of the deletion.
- the modification (s) is (are) carried out by one or more deletions between the Xhol-Xhol interfaces of the VP1-coding nucleic acid which comprises 62 amino acids (Hermonat, PL et al. (1984), J. Virol., 51, 329-339).
- the deletion (s) lies between the BsrBI-HindII cleavage sites of the VP1-coding nucleic acid, which lies within the deletion described above and comprises 29 amino acids. This deletion has the advantage that it has no overlap with the rep gene and therefore essentially does not affect the packaging mechanism.
- VP3 structural protein there are one or more insertions in the VP3 structural protein (Rutledge, EA et al. (1998) supra) before and / or after at least one amino acid in the sequence selected from YKQIS SQSGA, YLTLN NGSQA, YYLSR TNTPS, EEKFF PQSGV , NPVAT, EQYGS, LQRGN RQAAT, NVDFT VDTNG, since these places are at the exposed points of a loop, with little risk of changing the VP3 structure.
- the point mutation (s), the mutation (s) of several amino acids, the deletion (s) or insertion (s) is / are carried out according to generally known methods by deletion and insertion in the gene coding for the structural protein.
- the deletions can, for example, be introduced into the individual structural protein genes by means of PCR-assisted mutagenesis.
- the inserts can be inserted according to generally known methods, for example by means of hydrolysis by restriction endonucleases of the corresponding structural protein genes and subsequent ligase reaction. The subsequent expression of the mutated gene leads to the structural protein according to the invention.
- Another object of the present invention is also a structural protein according to the invention in the form of an AAV particle, in particular in the form of an AAV capsid Particles or capsids are particularly suitable as carriers of selected compounds, for example rAAV transduction vectors.
- the present invention further relates to a nucleic acid, preferably an RNA or DNA, in particular a double-stranded DNA, coding for a structural protein according to the invention.
- the present invention also relates to a cell, preferably a mammalian cell, for example a COS cell, HeLa cell or 293 cell, containing a nucleic acid according to the invention.
- a cell preferably a mammalian cell, for example a COS cell, HeLa cell or 293 cell, containing a nucleic acid according to the invention.
- Such cells are suitable, for example, for producing the recombinant AAV particles.
- Another object of the present invention is therefore also a method for producing a structural protein according to the invention, in particular for producing a structural protein according to the invention in the form of an AAV particle, a suitable cell containing a nucleic acid coding for the structural protein according to the invention being cultivated and possibly expressed Struktu ⁇ rotein is isolated.
- the structure protein according to the invention can be determined using a cesium chloride gradient, as described, for example, in Chiorini, J.A. et al. (1995), supra, isolate.
- Another object of the present invention also relates to a medicament containing a structure protein according to the invention or a nucleic acid according to the invention or a cell according to the invention and, if appropriate, suitable auxiliaries and additives, such as e.g. a physiological saline, stabilizers, proteinase, DNAse inhibitors, etc.
- suitable auxiliaries and additives such as e.g. a physiological saline, stabilizers, proteinase, DNAse inhibitors, etc.
- the present invention furthermore relates to a medicament which contains at least two different structural proteins according to the invention, each of which has different modifications. It is particularly preferred that they have different antigenicity.
- kits containing at least two different structure proteins according to the invention in which each structure protein is present separately from the other structure protein (s) in the kit.
- a structural protein is first used.
- structural proteins with a different antigenicity are used.
- Therapy with the aid of the medicament or kit thus comprises the successive administration of structural proteins according to the invention.
- the medicinal product or the kit thus have the advantage that (1) the potentiation of an immune response triggered by repeated use of the same structural protein can be avoided and (2) in the event of an immune response being triggered during the first application, by using a structural protein with different antigenicity, the existing defense reaction against this second application is less effective than against an application with the first structural protein.
- the reduced immunization of the patient increases the effectiveness. For continuous applications, it is possible to switch between different structural proteins several times in order to keep a patient's immunization as low as possible.
- Preferred is a set of several structural proteins in the form of infectious particles with different antigenicity, which are used as a vector for the multiple transfer of, for example, identical therapeutic genes.
- Another medicament comprises a set of structural proteins in the form of infectious particles, which are used as vectors for different therapies.
- Another object of the present invention relates to the use of the structural protein according to the invention for changing the antigenicity of AAV, for transforming a cell and or - in the form of suitable rAAV vectors - for gene therapy.
- Gene therapy is a form of therapy in which the introduction of nucleic acids into cells expresses an effector gene and thus usually a protein.
- in vitro and in vivo methods In in-vitro methods, cells are removed from the organism and trans-transduced ex-vivo with vectors in order to then be reintroduced into the same or into another organism.
- vectors for example for combating tumors, are applied systemically (e.g. via the bloodstream) or locally (e.g. into the tumor).
- a major advantage of the present invention is that by the mutagenesis of AAV structural proteins according to the invention, the antigenicity substantially without loss of the packaging efficiency of recombinant AAV vectors - and thus the basic requirement of Infectivity - can be changed within the capsid of the virus.
- the present invention is therefore particularly suitable for the in vivo transduction of cells, for example for somatic gene therapy, if a reduced immunization of patients is desired.
- a plasmid pUC-AV2 which was produced by subcloning the 4.8 kb BglII fragment of pAV2 (ATCC 37261, ref. 53) into the BamHI site of pUC19 (New England BioLabs Inc.), was initially assumed. Mutations were carried out at defined sites on the plasmid by means of PCR-assisted mutagenesis known to the person skilled in the art.
- Nucleotides 2985, 3345 and 3963 was used Nucleotides 2985, 3345 and 3963 inserted. This corresponds to an insertion according to amino acids 261, 381 and 587 of the AAV2 capsid protein (nomenclature according to the number of amino acids (AA) counted according to the AA from the beginning of the N-terminus in VP-1 of AAV2).
- two mutation-specific primers and a plasmid, pCap which contains only the cap gene and is formed as a template, are used by cutting out the 2.2 kb EcoRI-BspMI fragment from pUC-AV2 and into the EcoRI site of the pUC19 is inserted.
- PCR products are then amplified in bacteria, sequenced and the 1.4 kb EcoNI-Xcml fragment which contains PI in pUC-AV2, in which the corresponding wild-type cap sequence has been cut out, is subcloned.
- the plasmids (mutants) named after the AS insertion sites pl-261, pl-381 and pI-587 contained the complete AAV2 genome.
- the corresponding proteins are designated 1-261, 1-381 and 1-587.
- HeLa cells (a human cervical epithelial cell line) were transfected with the plasmids according to Example 1, then incubated for about 20 hours and then infected with type 5 adenovirus. 72 h after the cells were opened to infection and the AAV2 particles were purified using a CsCl gradient.
- the aim of these experiments was to determine whether the capsid mutants can package the viral genome and form complete capsids.
- AAV2 particles of the mutants according to Example 2 were checked whether and if so how many particles carry the virus genome and how much DNA was packed in the capsid mutants.
- the viruses (mutants and wild type) purified according to Example 2 were treated with DNAse, blotted and hybridized with a Rep probe.
- the resulting titer showed no quantitative or qualitative difference compared to the wild type (see Table 1).
- the viruses retained the ability to package the genome.
- the mutations were not made in areas that are important for the correct folding, the capsid composition or the packaging of the genome.
- the function of the AAV particles according to the invention is not disturbed.
- A20 monoclonal antibodies (A20MAb) were used in an ELISA in a further experiment.
- A20MAb react specifically with completely composed wild-type AAV2 capsid (Wistuba et al., (1997), J. Virol. 71, 1341-1352).
- Table 1 Packaging efficiency and antigenicity of the virus mutants produced according to Example 1
- the genomic virus titer (dot blot) and the titer with A20 capsid ELISA are shown.
- the concentrations are given in particles / ml, "n.m.” means "not measurable”.
- the slides were washed once with PBS, fixed in methanol (5 min, 4 ° C) and then treated with acetone (5 min, 4 ° C).
- the cells were then incubated for one hour at room temperature with the monoclonal antibody 76-3, which reacts with Rep proteins from AAV2. It was then washed and incubated for one hour with a rhodamine-conjugated anti-mouse secondary antibody at a dilution of 1:50 in PBS with 1% BSA.
- the titers were from the last limiting dilution of the viral stock solution, which had led to fluorescence-positive cells.
- the titers are shown on the wild-type-sensitive CO115 cells.
- the titers for 1-261, 1-381 and 1-587 are expressed like the wild type in Rep-EFU / ml.
- EFU means expression-forming units. "N.m.” means “not measurable”. 5
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Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/031,313 US7252997B1 (en) | 1999-07-15 | 2000-07-13 | Structural protein of adeno-associated virus with modified antigenicity, its production and its use |
AU66931/00A AU781397B2 (en) | 1999-07-15 | 2000-07-13 | Structural protein of adeno-associated virus with modified antigenicity, its production and its use |
JP2001511200A JP4842471B2 (ja) | 1999-07-15 | 2000-07-13 | 修飾された抗原性を有するアデノ随伴ウイルスの構造タンパク質と、その製造及び使用 |
EP00954493A EP1198581B1 (de) | 1999-07-15 | 2000-07-13 | vERFAHREN ZUR VERRINGERUNG DER ANTIGENITÄT DES ADENO-ASSOZIIERTEN VIRUS STRUKTURPROTEINS |
CA2379220A CA2379220C (en) | 1999-07-15 | 2000-07-13 | Structural protein of adeno-associated virus with modified antigenicity, its production and its use |
DE50015518T DE50015518D1 (de) | 1999-07-15 | 2000-07-13 | vERFAHREN ZUR VERRINGERUNG DER ANTIGENITÄT DES ADENO-ASSOZIIERTEN VIRUS STRUKTURPROTEINS |
US11/880,592 US7556965B2 (en) | 1999-07-15 | 2007-07-23 | Structural protein of adeno-associated virus with modified antigenicity, its production and its use |
US12/484,694 US7968340B2 (en) | 1999-07-15 | 2009-06-15 | Structural protein of adeno-associated virus with modified antigenicity, its production and its use |
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DE19933288A DE19933288A1 (de) | 1999-07-15 | 1999-07-15 | Strukturprotein von Adeno-assoziiertem Virus mit veränderter Antigenität, seine Herstellung und Verwendung |
DE19933288.6 | 1999-07-15 |
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EP (2) | EP1198581B1 (de) |
JP (1) | JP4842471B2 (de) |
AT (1) | ATE420192T1 (de) |
AU (1) | AU781397B2 (de) |
CA (1) | CA2379220C (de) |
DE (2) | DE19933288A1 (de) |
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- 2000-07-13 EP EP00954493A patent/EP1198581B1/de not_active Expired - Lifetime
- 2000-07-13 EP EP08022398A patent/EP2060634A1/de not_active Withdrawn
- 2000-07-13 CA CA2379220A patent/CA2379220C/en not_active Expired - Fee Related
- 2000-07-13 US US10/031,313 patent/US7252997B1/en not_active Expired - Fee Related
- 2000-07-13 JP JP2001511200A patent/JP4842471B2/ja not_active Expired - Fee Related
- 2000-07-13 DE DE50015518T patent/DE50015518D1/de not_active Expired - Lifetime
- 2000-07-13 ES ES00954493T patent/ES2320970T3/es not_active Expired - Lifetime
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Cited By (14)
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US6491907B1 (en) | 1998-11-10 | 2002-12-10 | The University Of North Carolina At Chapel Hill | Recombinant parvovirus vectors and method of making |
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US9624274B2 (en) | 2007-05-31 | 2017-04-18 | Medigene Ag | Mutated structural protein of a parvovirus |
US10408834B2 (en) | 2007-05-31 | 2019-09-10 | Medigene Ag | Mutated parvovirus structural proteins as vaccines |
US10822378B2 (en) | 2007-05-31 | 2020-11-03 | Medigene Ag | Mutated structural protein of a parvovirus |
US8889641B2 (en) | 2009-02-11 | 2014-11-18 | The University Of North Carolina At Chapel Hill | Modified virus vectors and methods of making and using the same |
US9475845B2 (en) | 2009-02-11 | 2016-10-25 | The University Of North Carolina At Chapel Hill | Modified virus vectors and methods of making and using the same |
WO2010099960A2 (en) | 2009-03-04 | 2010-09-10 | Deutsches Krebsforschungszentrum | Assembly activating protein (aap) and its use for the manufacture of parvovirus particles essential consisting of vp3 |
US9464119B2 (en) | 2009-03-04 | 2016-10-11 | Deutsches Krebsforschungszentrum | Assembly activating protein (AAP) and its use for the manufacture of parvovirus particles essentially consisting of VP3 |
US11267847B2 (en) | 2009-03-04 | 2022-03-08 | Medigene Ag | Assembly activating protein (AAP) and its use for the manufacture of parvovirus particles essentially consisting of VP3 |
WO2013037961A1 (en) | 2011-09-15 | 2013-03-21 | Medigene Ag | Anti-her2 vaccine based upon aav derived multimeric structures |
US9821043B2 (en) | 2011-09-15 | 2017-11-21 | Medigene Ag | Anti-HER2 vaccine based upon AAV derived multimeric structures |
Also Published As
Publication number | Publication date |
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CA2379220C (en) | 2012-04-03 |
US7252997B1 (en) | 2007-08-07 |
ES2320970T3 (es) | 2009-06-01 |
US20090253897A1 (en) | 2009-10-08 |
US7968340B2 (en) | 2011-06-28 |
US20080064081A1 (en) | 2008-03-13 |
DE50015518D1 (de) | 2009-02-26 |
EP1198581B1 (de) | 2009-01-07 |
EP1198581A1 (de) | 2002-04-24 |
EP2060634A1 (de) | 2009-05-20 |
JP2003505032A (ja) | 2003-02-12 |
JP4842471B2 (ja) | 2011-12-21 |
CA2379220A1 (en) | 2001-01-25 |
AU781397B2 (en) | 2005-05-19 |
US7556965B2 (en) | 2009-07-07 |
DE19933288A1 (de) | 2001-01-18 |
AU6693100A (en) | 2001-02-05 |
ATE420192T1 (de) | 2009-01-15 |
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