EP1539939A1 - Verfahren zur herstellung von virusanalogen partikeln zur verpackung von biologisch aktiven makromolekülen durch in vitro-assemblierung von kapsomeren an die die makromoleküle gebunden sind - Google Patents
Verfahren zur herstellung von virusanalogen partikeln zur verpackung von biologisch aktiven makromolekülen durch in vitro-assemblierung von kapsomeren an die die makromoleküle gebunden sindInfo
- Publication number
- EP1539939A1 EP1539939A1 EP03790708A EP03790708A EP1539939A1 EP 1539939 A1 EP1539939 A1 EP 1539939A1 EP 03790708 A EP03790708 A EP 03790708A EP 03790708 A EP03790708 A EP 03790708A EP 1539939 A1 EP1539939 A1 EP 1539939A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- capsomers
- macromolecules
- virus
- bound
- biologically active
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N7/00—Viruses; Bacteriophages; Compositions thereof; Preparation or purification thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
- A61K48/0008—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy characterised by an aspect of the 'non-active' part of the composition delivered, e.g. wherein such 'non-active' part is not delivered simultaneously with the 'active' part of the composition
- A61K48/0025—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy characterised by an aspect of the 'non-active' part of the composition delivered, e.g. wherein such 'non-active' part is not delivered simultaneously with the 'active' part of the composition wherein the non-active part clearly interacts with the delivered nucleic acid
- A61K48/0041—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy characterised by an aspect of the 'non-active' part of the composition delivered, e.g. wherein such 'non-active' part is not delivered simultaneously with the 'active' part of the composition wherein the non-active part clearly interacts with the delivered nucleic acid the non-active part being polymeric
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/005—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from viruses
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2710/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA dsDNA viruses
- C12N2710/00011—Details
- C12N2710/22011—Polyomaviridae, e.g. polyoma, SV40, JC
- C12N2710/22022—New viral proteins or individual genes, new structural or functional aspects of known viral proteins or genes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2710/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA dsDNA viruses
- C12N2710/00011—Details
- C12N2710/22011—Polyomaviridae, e.g. polyoma, SV40, JC
- C12N2710/22023—Virus like particles [VLP]
Definitions
- the invention relates to a method for the in vitro assembly of capsomers or of capsomers, to which biologically active macromolecules are bound, into virus-analogous particles or for packaging biologically active macromolecules into these virus-analogous particles during in vitro assembly.
- These complexes represent vectors suitable for gene therapy. They make it possible to transduce biologically active macromolecules in cells so that they are functional there.
- capsomeres refer to naturally occurring virus envelope proteins, recombinantly produced virus envelope proteins or genetically engineered variants of virus envelope proteins.
- VLP's represent a virus envelope consisting of one or more virus envelope proteins. They can take various forms; in the case of the VLPs derived from Polyoma VP1, for example hollow spheres with a diameter of approximately 40-50 nm, which are composed of 360 VP1 molecules arranged in 72 pentamers. In addition to this type of VLP's, Polyoma VP1 can also form smaller shapes and rod-shaped VLP's (Salunke et al., 1989, Biophys. J. 56, 887-900). The VLP's can be produced by the recombinant production of the capsomeres in insect cells or yeast. VLPs are isolated directly in this production.
- capsomeres in Escherichia coli leads to the recovery of non-assembled capsomeres, which can be assembled in vitro to VLP's.
- This assembly process is often carried out in the presence of a stabilizing salt such as ammonium sulfate.
- a stabilizing salt such as ammonium sulfate.
- Polyoma VP1 is assembled under these conditions to form homogeneously structured VLPs.
- the use of required high concentrations of this salt in the assembly results in high ionic strengths of the buffer, which is binding of nucleic acids and other biologically active macromolecules affecting the capsomeres.
- Ammonium sulfate is therefore unsuitable for use in the packaging of biologically active macromolecules associated with the assembly of capsomers to which macromolecules are bound.
- the capsomer of polyomavirus VP1 is able to bind biologically active macromolecules.
- a binding site of the protein for nucleic acids is located in the N-terminal sequence, which contains a high proportion of positively charged amino acids (Moreland et al., 1991, J. Virol. 65, 1168-1176). Other macromolecules can also bind to this sequence.
- the binding of Polyoma VP1 to plasmid DNA prevents in vitro assembly into VLP's. Therefore, the current procedures of. Complex formation of Polyoma VP1 with plasmid DNA on the interaction of already assembled VLP's with DNA. The procedure described leads to an interaction of VP1 and DNA, in which the DNA is partially protected against DNase digestion.
- the invention is based on the problem of developing a new method for the in vitro assembly of capsomers in VLPs or for packaging biologically active macromolecules during the in vitro assembly of capsomers, in which a high efficiency of the assembly and a high degree of packaging for biologically active Macromolecules is achieved.
- capsomers or capsomers to which biologically active macromolecules are bound by means of ionic interactions, are assembled in the presence of an oxidizing redox system and non-ionic stabilizers in a buffer with an ionic strength below 250 mM.
- Suitable macromolecules are, in particular, but not exclusively, nucleic acids such as double-stranded DNA, double-stranded RNA, single-stranded DNA and single-stranded RNA, PNA's, proteins or peptides.
- the size of the nucleic acid to be packaged is preferred, but not exclusively 10 to 5400 bases, preferably 20 to 1000 bases.
- Viral envelope proteins that can be assembled in vitro to VLP's come into consideration as capsomers. This is described for virus envelope proteins or capsid proteins from, for example, polyoma and related viruses, papilloma virus, poliovirus, hepatitis virus, lentiviruses, Rous Sarcoma virus or adeno-associated virus. The process is based on the surprising effect that the non-ionic stabilizers
- Substances can serve sugar with C3, C4, C5 and C6 units such as glycerin,
- Oligosaccharides such as amylose or amylopectin.
- polyols such as ethylene glycol or
- Polyethylene glycol of various chain lengths can be used.
- the non-ionic substance is added to the buffer in concentrations of 5-50% (w / v), preferably in the concentration range of 15-30% (w / v).
- Capsomeres or capsomeres with bound macromolecules are assembled in a concentration range from 50 ⁇ g / ml - 5 mg / ml to VLPs, preferably from 0.25 - 2 mg / ml, at a pH of pH 7-8.5 and temperatures between 15 and 30 ° C. preferably pH 7.2 - 7.5 and a temperature of 20 - 25 ° C.
- Tris, Hepes and phosphate for example, can be used as buffer substances, preferably in concentrations of 10-100 mM.
- the assembly is carried out under oxidizing conditions.
- This can include the oxidation by molecular oxygen or, preferably, the oxidation using a redox system composed of oxidized and reduced thiol-containing substances such as reduced and oxidized glutathione, cysteine / cystine, cysteamine / cystamine, reduced / oxidized ⁇ -mercaptoethanol or aromatic thiol-containing substances.
- oxidized and reduced thiol-containing substances such as reduced and oxidized glutathione, cysteine / cystine, cysteamine / cystamine, reduced / oxidized ⁇ -mercaptoethanol or aromatic thiol-containing substances.
- These are preferably used as a mixture of oxidized to reduced substance in a ratio of 1:10 to 10: 1 or by exclusive addition of the oxidizing substance.
- the capsomeres to be assembled or the capsomeres to which contact is to be brought into contact biologically active macromolecules are bound to the assembly buffer by diluting the capsomers with the assembly buffer and / or dialyzing. Basically, a rebuffering of the capsomeres into the assembly buffer must be guaranteed.
- the packaging of biologically active macromolecules during assembly is preferably carried out by incubating the macromolecules with the capsomeres.
- the protein concentration is in the range of 0.05 - 5 mg / ml, preferably 0.25 - 2 mg / ml.
- the macromolecules bound to the capsomeres are packaged with high efficiency during assembly into the resulting VLPs. This concerns both the amount of packaged macromolecules per VLP and the relative proportion of VLP's in which macromolecules were packed.
- the unpackaged macromolecules are digested with the help of DNases, RNases or proteases and the packaged and thus protected from degradation is quantified using agarose gel electrophoresis or chromatography. It is particularly important to ensure that macromolecules that are non-specifically associated with the VLP's are also broken down. This can be analyzed by determining the efficiency of the packaging as a function of the DNase, RNase or protease concentration used.
- the present invention is described in the following with reference to examples. The following figures are referred to:
- Illustration 1
- Polyoma VPl was dialyzed at 20 ° C for 2 days against 20 mM Tris, pH 7.4, 1 mM CaCl 2 ,
- Formwar and coal-coated copper grid adsorbed washed several times with water and then colored with 2% uranyl acetate.
- Figure 1A shows the measurement of the sedimentation rate by means of analytical
- Figure 1B shows an electron micrograph of the
- Example 2 Packing of DNA by in vitro assembly of VPl To assemble into VLPs while simultaneously packing dsDNA, 1.98 ⁇ M pentameric VPl (0.42 mg / ml) with 8.42 nM dsDNA with a length of 100 bp, 184 bp or 300 bp were used incubated for 30 minutes at 25 ° C.
- VLPs were used against assembly buffer (50 mM Tris, 50 mM NaCl, 5% glycerol (v / v), 25% D-sorbitol (w / v), 2 mM CaCl 2 , 4.5 mM GSSG, 0 , 5 mM GSH, pH 7.4) dialyzed for 48 h at 24 ° C.
- assembly buffer 50 mM Tris, 50 mM NaCl, 5% glycerol (v / v), 25% D-sorbitol (w / v), 2 mM CaCl 2 , 4.5 mM GSSG, 0 , 5 mM GSH, pH 7.4
- a stop mix 0.5 M NaH PO, 0.5 M EDTA, 1 M DTT, pH 6.0
- 50 ⁇ l of a stop mix 0.5 M NaH PO, 0.5 M EDTA, 1 M DTT, pH 6.0
- the samples were then boiled at 95 ° C. for 15 minutes.
- a phenol-chloroform extraction and then a concentration using the GFX TM PCR Kit was carried out.
- the packaged fragments could be displayed by agarose gel electrophoresis (2% agarose) and subsequent ethidium bromide staining.
- Figure 2 shows the results of the DNA packaging described here. 100 bp, 180 bp and 300 bp dsDNA fragments were packaged. An unassembled pentamer / DNA sample served as a control. Lanes 4, 7 and 10 show the approaches under native conditions. Lanes 5, 8 and 11 under denatured conditions. Lanes 6, 9 and 12 show samples of the concentrated DNA after the benzonase digestion procedure, i.e. DNA packaged in wtVPl capsid.
- a gel shift assay was used to detect dsDNA bound to pentameric Polyoma VPl. 10 ⁇ g VPl were incubated with 0.5 ⁇ g DNA of an 1kb or 100 bp conductor from NEB at 25 ° C. for 30 minutes. The samples were then mixed with glycerol and analyzed by agarose gel electrophoresis (1.8% agarose) and ethidium bromide staining.
- Figure 3 shows the running behavior of the lkb ladder dsDNA in the presence (lane 1) and absence of VPl (lane 2). The running behavior of the lOObp ladder dsDNA is also shown in the presence (lane 3) and absence of VPl (lane 4). In both cases it becomes clear that the binding of the DNA to Polyoma VPl changes its running behavior.
- the fluorescence polarization method was used to quantify DNA binding. 23 nM of a Rhodamine-labeled DNA fragment of 184 bp in length was also analyzed
- Figure 4 shows the change in the polarization signal of the labeled DNA with increasing
- Example 6 Detection of the binding of single-stranded DNA (ssDNA) to VPl.
- ssDNA single-stranded DNA
- a gel shift assay was used to detect ssDNA bound to pentameric Polyoma VPl
- Figure 6 shows the running behavior of the ⁇ X174 Virion DNA in the presence (lane 1)
- Lane 4 represents a molecular weight standard. It becomes clear that the binding of the DNA to Polyoma VP1 changes its running behavior.
- Example 7 Detection of the binding of single-stranded RNA (ssRNA) to VPl.
- ssRNA single-stranded RNA
- a gel shift assay was used to detect ssRNA bound to Pentameres Polyoma VPl.
- 10 ⁇ g VPl which had previously been mixed with SUPERaseln RNase inhibitor from Ambion for 10 minutes, were incubated with 1.5 ⁇ g of the RNA ladder from NEB at 25 ° C. for 30 minutes. The samples were then mixed with glycerol and analyzed by agarose gel electrophoresis (1% agarose) and ethidium bromide staining.
- Figure 7 shows the running behavior of the RNA molecular weight ladder in the presence (lane 1) and absence of VPl (lane 2.3). It becomes clear that the binding of the RNA to Polyoma VPl changes its running behavior.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10237639 | 2002-08-13 | ||
| DE2002137639 DE10237639A1 (de) | 2002-08-13 | 2002-08-13 | Verfahren zur Herstellung von virusanalogen Partikeln durch in vitro-Assemblierung von Kapsomeren oder von Kapsomeren, an die biologisch aktive Makromoleküle gebunden sind, bei gleichzeitiger Verpackung der Makromoleküle |
| PCT/DE2003/002688 WO2004020615A1 (de) | 2002-08-13 | 2003-08-09 | Verfahren zur herstellung von virusanalogen partikeln zur verpackung von biologisch aktiven makromolekülen durch in vitro-assemblierung von kapsomeren an die die makromoleküle gebunden sind |
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| EP03790708A Withdrawn EP1539939A1 (de) | 2002-08-13 | 2003-08-09 | Verfahren zur herstellung von virusanalogen partikeln zur verpackung von biologisch aktiven makromolekülen durch in vitro-assemblierung von kapsomeren an die die makromoleküle gebunden sind |
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| EP (1) | EP1539939A1 (de) |
| AU (1) | AU2003263132A1 (de) |
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| BR112020021962A2 (pt) * | 2018-04-30 | 2021-01-26 | Amicus Therapeutics, Inc. | construtos para terapia gênica e métodos de uso |
| EP3868893A1 (de) * | 2020-02-20 | 2021-08-25 | Technische Universität München | Programmierbare schalen zur einkapselung von viren |
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| US6245568B1 (en) * | 1999-03-26 | 2001-06-12 | Merck & Co., Inc. | Human papilloma virus vaccine with disassembled and reassembled virus-like particles |
| DE19952982B4 (de) * | 1999-11-03 | 2004-01-29 | Acgt Progenomics Ag | Verfahren zur gerichteten Verpackung von molekularen Substanzen in Proteinhüllen |
| DE19952957B4 (de) * | 1999-11-03 | 2006-08-31 | Acgt Progenomics Ag | Modulare Transportsysteme für molekulare Substanzen und deren Herstellung und Verwendung |
| CA2875298A1 (en) * | 1999-12-09 | 2001-06-14 | Medimmune, Inc. | In vitro method for disassembly/reassembly of papillomavirus virus-like particles (vlps) |
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- 2002-08-13 DE DE2002137639 patent/DE10237639A1/de not_active Withdrawn
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2003
- 2003-08-09 WO PCT/DE2003/002688 patent/WO2004020615A1/de not_active Ceased
- 2003-08-09 AU AU2003263132A patent/AU2003263132A1/en not_active Abandoned
- 2003-08-09 DE DE10393561T patent/DE10393561D2/de not_active Expired - Fee Related
- 2003-08-09 EP EP03790708A patent/EP1539939A1/de not_active Withdrawn
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| AU2003263132A1 (en) | 2004-03-19 |
| WO2004020615A1 (de) | 2004-03-11 |
| DE10237639A1 (de) | 2004-02-26 |
| DE10393561D2 (de) | 2005-06-30 |
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