WO2021162211A1 - 아데노연관바이러스용 안정화제 및 이를 이용한 아데노연관바이러스의 안정화 방법 - Google Patents
아데노연관바이러스용 안정화제 및 이를 이용한 아데노연관바이러스의 안정화 방법 Download PDFInfo
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- WO2021162211A1 WO2021162211A1 PCT/KR2020/016512 KR2020016512W WO2021162211A1 WO 2021162211 A1 WO2021162211 A1 WO 2021162211A1 KR 2020016512 W KR2020016512 W KR 2020016512W WO 2021162211 A1 WO2021162211 A1 WO 2021162211A1
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- adeno
- aav
- surfactant
- stabilizer
- associated virus
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- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/08—Solutions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- C12N2710/00011—Details
- C12N2710/10011—Adenoviridae
- C12N2710/10041—Use of virus, viral particle or viral elements as a vector
- C12N2710/10043—Use of virus, viral particle or viral elements as a vector viral genome or elements thereof as genetic vector
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- C12N2750/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssDNA viruses
- 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
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- C12N2750/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssDNA viruses
- C12N2750/00011—Details
- C12N2750/14011—Parvoviridae
- C12N2750/14111—Dependovirus, e.g. adenoassociated viruses
- C12N2750/14151—Methods of production or purification of viral material
Definitions
- the present invention relates to a stabilizer for adeno-associated virus (AAV) and a method for stabilizing adeno-associated virus using the same, and more particularly, to a stabilizer for adeno-associated virus including a surfactant or albumin, adeno-associated virus, and the stabilizer It relates to an adeno-associated virus liquid formulation comprising a, and a method for producing an adeno-associated virus with improved stability.
- AAV a stabilizer for adeno-associated virus
- Gene therapy is a technology for treating diseases by gene delivery and expression, and unlike drug therapy, it is a therapy to correct a genetic defect by targeting a specific gene that causes a disease.
- the ultimate goal of gene therapy is to obtain beneficial therapeutic effects by genetically modifying living cells.
- the main research field of gene therapy is the field of introducing a gene that has a therapeutic effect on a specific disease, enhancing the resistance function of normal cells to show resistance to anticancer drugs, etc., or replacing a modified or lost gene in patients with various hereditary diseases can be summarized as
- Gene delivery technology for gene therapy is largely a method using a virus as a transporter (viral vector-based transfer method), a non-viral delivery method using synthetic phospholipids or cationic polymers, and cell membranes. It can be divided into physical methods such as electroporation, which introduces genes by applying temporary electrical stimulation.
- the method using a viral transporter is a vector lacking in some or all of the replication ability having a gene replaced with a therapeutic gene, and is a preferred method for gene therapy because the delivery of the gene factor can be made efficiently.
- Viruses used as viral carriers or viral vectors include RNA viral vectors (retroviral vectors, lentiviral vectors, etc.) and DNA viral vectors (adenoviral vectors, adeno-associated virus vectors, etc.), in addition to herpes simplex virus vectors ( herpes simplex viral vector, alpha viral vector, and the like. Among them, recently, research on lentivirus and adeno-associated virus has been actively conducted (BRIC View 2016-T22).
- Adeno-Associated Virus is a single-stranded provirus belonging to the genus Parvoviridae and Dependovirus. ) is required to coexist with helper viruses such as In the preparation of the adeno-associated virus, it is transfected with other plasmid DNAs expressing the rep part and the cap part, and the adenovirus is added as a helper virus.
- Adeno-associated virus is a very widely used vector in gene therapy because it does not reproduce in infected cells, induces a relatively mild immune response, and the location of gene insertion is predictable to some extent.
- genetic variants of wild-type protein shells are often produced in order to improve production efficiency or infection efficiency and target delivery ability, and such changes in the surface of the virus may reduce stability to the external environment.
- the recombinant adeno-associated virus is unstable in aqueous solution, there are problems in aggregation and surface adsorption over time, and there has been a problem in long-term storage.
- this unstable property is a problem even when introducing functional molecules to the surface of the adeno-associated virus, and most adeno-associated viruses are aggregated during the introduction process. These aggregated viruses form crystals and grow to a size of 10 ⁇ m or more, leading to an embolism that blocks blood vessels, and eventually leads to death of the injected individual.
- the existing technology to improve the stability of the adeno-associated virus focused on how to store it for a long time without losing the infectivity of the adeno-associated virus as much as possible, and many studies have been conducted to prevent the crystallization phenomenon caused when functional molecules are introduced to the surface. It didn't happen. Therefore, it is necessary to develop a technology for enhancing the stability of the adeno-associated virus itself and maintaining the stability even when functional molecules are introduced.
- AAV adeno-associated virus
- an object of the present invention is to provide a stabilizer for Adeno-Associated Virus (AAV), including a surfactant or albumin.
- AAV Adeno-Associated Virus
- Another object of the present invention is to provide a liquid formulation for adeno-associated virus (AAV) comprising an adeno-associated virus (AAV) and a stabilizer, wherein the stabilizer contains a surfactant or albumin. do it with
- the present invention includes the step of treating an adeno-associated virus (AAV) with a stabilizing agent, wherein the stabilizing agent comprises a surfactant or albumin, wherein the stability is improved adeno-associated virus
- AAV adeno-associated virus
- the stabilizing agent comprises a surfactant or albumin
- the present invention provides a stabilizer for adeno-associated virus (AAV) comprising a surfactant or albumin.
- AAV adeno-associated virus
- the surfactant may have a hydrophilic-lipophile balance (HLB) value of 5 to 20.
- HLB hydrophilic-lipophile balance
- the surfactant may be selected from the group consisting of anionic, cationic, nonionic and zwitter ionic.
- the stabilizer may inhibit the aggregation of the adeno-associated virus.
- the adeno-associated virus may be surface-modified with a polyphenol-based material.
- the polyphenol-based material may be tannic acid, catecholamine, or epigallocatechin gallate (EGCG).
- EGCG epigallocatechin gallate
- the albumin may be included in a concentration of 10 to 0.01% (w/w).
- the present invention provides an adeno-associated virus liquid formulation comprising an adeno-associated virus (AAV) and a stabilizer, wherein the stabilizer contains a surfactant or albumin.
- AAV adeno-associated virus
- the liquid formulation may be maintained at a pH of 3.0 to 8.0.
- the present invention includes the step of treating an adeno-associated virus (AAV) with a stabilizing agent, wherein the stabilizing agent comprises a surfactant or albumin, wherein the stability is improved adeno-associated virus It provides a manufacturing method of
- the adeno-associated virus (AAV) for gene delivery is unstable by itself and easily aggregates between viruses. Moreover, when the surface is modified with polyphenol to provide additional functionality, excessive aggregation occurs between AAVs to prevent embolism, etc. Particles in a crystalline form may be formed. However, when a surfactant and/or albumin are treated together, such aggregation between AAVs is significantly inhibited, so that crystalline particles are not formed, and the in vitro stability of AAV is enhanced. Confirmed.
- the technology according to the present invention inhibits excessive aggregation between viruses when manufacturing a gene transfer virus and therapeutic nanoparticles using an adeno-associated virus and forming an additional polyphenol conjugate for this, thereby reducing the particle size to an effective size for drug delivery. It is expected to be very useful in the field of drug delivery technology for gene therapy, as it maintains it and increases its stability in the liquid phase.
- Figure 1a shows nonionic surfactants Tween 80 and Triton X, zwitterionic surfactants CHAPS, cationic ( After mixing the AAV solution treated with CTAB as a cationic surfactant and sodium deoxycholate as an anionic surfactant, and a tannic acid solution, average particle size measurement through dynamic light scattering method and crystal formation under a microscope It is the result of observing whether
- Figure 1b is the result of confirming the formation of potential crystalline particles by serum mixing by mixing the AAV solution containing each of CTAB, Tween 80, and CHAPS with the tannic acid solution and then mixing FBS to observe whether crystals are formed.
- 2a is a scattering diagram after mixing the AAV solution and tannic acid solution treated with Tween 80 at concentrations of 0.2%, 0.05%, 0.0125% and 0.003%, respectively, in order to verify the change in stability of AAV according to the treatment concentration of each surfactant; It is the result of measuring the UV absorbance for the measurement.
- Figure 2b shows the results of measuring UV absorbance for scattering measurement after mixing the AAV solution and tannic acid solution treated with Triton X at concentrations of 0.05%, 0.0125%, 0.003% and 0.0008%, respectively.
- 2c is a result of measuring UV absorbance for scattering measurement after mixing the AAV solution and tannic acid solution treated with CHAPS at concentrations of 0.4%, 0.1%, 0.025% and 0.006%, respectively.
- 2d is a result of measuring UV absorbance for scattering measurement after mixing the AAV solution and tannic acid solution treated with CTAB at concentrations of 0.4%, 0.1%, 0.025% and 0.006%, respectively.
- Figure 2e shows the results of measuring UV absorbance for scattering measurement after mixing the AAV solution and tannic acid solution treated with sodium deoxycholate at concentrations of 0.2%, 0.05%, 0.0125% and 0.0003%, respectively.
- AAV solutions in which Tween 80 and CHAPS are present, respectively, were prepared using each buffer solution having different pH, and the average particle size was measured after mixing with the tannic acid solution. and it is the result of observing the presence or absence of the formation of crystalline particles.
- Figure 4a is to verify the in vitro stability of AAV according to the surfactant treatment. After mixing the Tween 80-treated AAV solution and the tannic acid solution, the average particle size was measured and the formation of crystalline particles was observed, respectively. This is the result of measuring the average particle size at minutes, 20 minutes, and 1 day.
- Figure 4b is after mixing the AAV solution and tannic acid solution treated with Tween 80, CHAPS and sodium deoxycholate, respectively, UV absorbance was measured at 0 min, 30 min, and 1 day (day), and the increase in scattering degree compared to the initial value This is the result of confirming the change in particle size over time.
- Figure 5 is the result of verifying the stability enhancing effect of AAV according to the albumin treatment, the average particle size after mixing the AAV solution and the tannic acid solution treated with albumin at various concentrations (10%, 1%, 0.1%, 0.01%) It is the result of measuring and observing the presence or absence of the formation of crystalline particles.
- the gold nanoparticle solution treated with Tween 80, CHAPS, and CTAB, respectively, and tannic acid It is the result of measuring the average particle size after mixing the solution and observing the formation of crystalline particles.
- AAV adeno-associated virus
- the present invention provides a stabilizer for Adeno-Associated Virus (AAV) comprising a surfactant or albumin.
- AAV Adeno-Associated Virus
- the term “stabilizer” refers to a substance added to prevent a change in state or chemical change when manufacturing, leaving or preserving a substance.
- the stabilizing agent inhibits aggregation between AAVs and inhibits the formation of crystalline particles due to excessive aggregation when surface-modifying with a material such as polyphenol, and furthermore, the size and shape of the AAV in an aqueous solution for a long period of time until administered in the body It may have a stabilizing function so that it can be maintained.
- surfactant is a substance that reduces the surface tension by adsorbing to the interface in a dilute solution.
- the substance may be a surfactant.
- the surfactant may include a hydrophilic-lipophile balance (HLB) value of 5 to 20, more preferably anionic, cationic, non- It may be selected from the group consisting of nonionic and zwitter ionic.
- HLB hydrophilic-lipophile balance
- the HLB value is a measure indicating the degree of hydrophilicity and lipophilicity of the surfactant, and when calculated through Griffin's formula for nonionic surfactant developed in 1954, an HLB value between 0 and 20 is obtained, and when the value is 0, the complete It is a lipophilic/hydrophobic molecule, and an HLB value of 20 means that it is a completely hydrophilic/oleophobic molecule.
- HLB value is a measure indicating the degree of hydrophilicity and lipophilicity of the surfactant, and when calculated through Griffin's formula for nonionic surfactant developed in 1954, an HLB value between 0 and 20 is obtained, and when the value is 0, the complete It is a lipophilic/hydrophobic molecule, and an HLB value of 20 means that it is a completely hydrophilic/oleophobic molecule.
- the anionic surfactant means a surfactant in which an atomic group exhibiting surface activity becomes an anion by ionization when dissolved in water.
- the types are very diverse, and they can be broadly classified into soap, sulfuric acid ester type of higher alcohol, and alkylarylsulfonate type.
- sodium deoxycholate is used, but the usable type is limited to this. no.
- the anionic surfactant may be included in a concentration range of 0.1 to 0.01% (w/w) of the total solution, and preferably may be included in a concentration of 0.07 to 0.03% (w/w), but is limited thereto no.
- the cationic surfactant refers to a surfactant in which an atomic group exhibiting surfactant activity becomes a cation by ionization when dissolved in water as opposed to an anionic surfactant. It has hydrophilic and lipophilic atomic groups and is used in various fields such as powerful disinfectants, disinfectants, sedimentation accelerators, and antistatic agents. Most of them are nitrogen compounds (amine salts, quaternary ammonium salts), but other sulfur tertiary sulfonium salts are used. Alternatively, there is a quaternary sulfonium salt, and in the present invention, Cetrimonium bromide (CTAB) was used, but the present invention is not limited thereto.
- CTAB Cetrimonium bromide
- the cationic surfactant may be included in a concentration of 0.3 to 0.007% (w/w) of the total solution, preferably in a concentration of 0.2 to 0.01% (w/w), more preferably 0.1 to 0.02% (w/w) may be included, but is not limited thereto.
- the nonionic surfactant is a surfactant that has polarity but does not separate into ions even when dissolved in water, and has several weak hydrophilic groups. It has high bubble stability, harmless reaction to skin, improved stability at low temperature, excellent cleaning action and less foaming, so its use is gradually expanding.
- Nonionic surfactants can be largely classified into ethylene oxide-based, diethanolamine-based, sorbitol-based, and glycerine-based surfactants. It is not limited to this.
- the nonionic surfactant may be included in a concentration range of 0.05 to 0.0001% (w/w) of the total solution, preferably in a concentration of 0.04 to 0.0005% (w/w), more preferably may be included in a concentration of 0.03 to 0.0008% (w/w), and more preferably in a concentration of 0.02 to 0.001% (w/w), but is not limited thereto.
- the amphoteric ionic surfactant is a surfactant having both a cationic atomic group and an anionic atomic group in a molecule, and there are organic compounds having various amphoteric electrolyte structures, so it is used as a shampoo, conditioner, softener, disinfectant, etc.
- Various types of amphoteric ionic surfactants are known, and in the present invention, CHAPS (3-[(3-cholamidopropyl)dimethylammonio]-1-propanesulfonate) is used, but the type is not limited thereto.
- the zwitterionic surfactant may be included in a concentration range of 0.08 to 0.005% (w/w) of the total solution, preferably in a concentration range of 0.06 to 0.01% (w/w), More preferably, it may be included in a concentration of 0.04 to 0.02% (w/w), but is not limited thereto.
- the albumin (Albumin) is a simple protein widely distributed in living cells or body fluids, together with globulin, constitutes the basic material of cells, and is widely present in the tissues of animals and plants.
- Albumin is an amphiphilic substance such as a surfactant and has hydrophilic and hydrophobic sites, so it has been widely used in biotechnology to dissolve poorly soluble drugs in water.
- the albumin may be included in a concentration of 10 to 0.01% (w/w) in the total solution, and preferably may be included in a concentration of 10 to 0.1% (w/w), but is not limited thereto.
- the present inventors confirmed that the above surfactant effectively inhibits the aggregation of AAV through specific examples to suppress the formation of crystal particles.
- the average particle size was measured and the formation of crystal particles was observed under a microscope.
- the surfactant was not treated, a large number of crystalline particles were formed, whereas when the surfactant was treated, the aggregation of AAV was effectively inhibited, so that the crystalline particles were not observed. confirmed that it is not.
- crystals are not formed regardless of the FBS treatment as a result of additional verification by treating FBS whether a potential crystal structure capable of blocking blood vessels is formed when mixed with plasma (see Example 2).
- the stability of AAV was verified by treatment with various concentrations for each type of surfactant. As a result, crystals were not formed depending on the type of surfactant. It was found that effective concentrations were different, and in common, when the concentration was too high or too low, it was found that the aggregation of AAV was not effectively inhibited and a tendency to form crystalline particles appeared (see Example 3).
- the aspect of particle formation may vary depending on pH
- AAV and tannic acid solutions containing surfactants were mixed using buffers of various pHs, and average particle size and crystalline particle formation were analyzed. .
- the pattern of particle formation was changed before and after pH 3.0, and thus, it was confirmed that the pH 3.0 to 8.0 range was preferably appropriate (see Example 4).
- a surfactant-treated AAV and a tannic acid solution are mixed and the size change of the particles is measured and compared while leaving it for up to 1 day.
- the particle size was generally maintained until after 1 day, and when Tween 80 was used as a nonionic surfactant, the stability of AAV was maintained at the highest level (see Example 5).
- the effect of albumin as a substance capable of improving the stability of AAV, such as a surfactant was verified.
- the albumin was treated with various concentrations (10%, 1%, 0.1%, 0.01%) to measure the average particle size and observe the formation of crystalline particles.
- 0.1% concentration range It was confirmed that micro-sized particles were formed (see Example 6-1).
- the AAV solution treated with each surfactant and the tannic acid solution were mixed, and the albumin solution was additionally mixed thereto, then the average particle size was measured and the formation of crystalline particles was observed.
- the present invention includes an adeno-associated virus (AAV) and a stabilizer, wherein the stabilizer contains a surfactant or albumin, adeno-associated virus liquid provide a formulation.
- AAV adeno-associated virus
- the liquid formulation may be maintained at a pH of 3.0 to 8.0.
- the present invention comprises the step of treating an adeno-associated virus (AAV) with a stabilizing agent, wherein the stabilizing agent comprises a surfactant or albumin. Stability, It provides a method for producing this enhanced adeno-associated virus.
- AAV adeno-associated virus
- the method for preparing an adeno-associated virus may use a method commonly used in the art, and a person skilled in the art may appropriately select and prepare it.
- the adeno-associated virus may be surface-modified with a polyphenol-based material in order to introduce cardiac targeting properties to the virus, and the polyphenol-based material is tannic acid, catecholamine, or epigallocatechin gallate.
- EGCG animalallocatechin gallate
- tannic acid preferably tannic acid, but is not limited thereto.
- Tannic acid (T0200) and gold nanoparticles (900484) used in Examples of the present invention were purchased from Sigma-Aldrich.
- the recombinant AAV 9 (Adeno-associated virus serotype 9) used in this Example was prepared through transient transfection.
- an AAV helper plasmid of the same mass having cap3.45, the capsid gene of AAV 9, a CMV GFP vector plasmid and an adenoviral helper plasmid having an inverted terminal repeat (ITR) were prepared using calcium phosphate. It was prepared by transfection into AAV-293 cells. Thereafter, the prepared viral vectors were recovered as described in the previous study, and impurities were removed by ultracentrifugation. The genomic titer of AAV was derived using QPCR.
- the present inventors treated a surfactant and tried to confirm the change in AAV stability due to this.
- various types of interface known in the art It was intended to verify the effect of the active agent. More specifically, each of Tween 80, Triton X, CHAPS, Cetrimonium bromide (CTAB), and Sodium deoxycholate was present at 0.05% (w/w) (PBS, pH 7.4). 50 uL of 0.5 mM tannic acid solution was mixed with 1x10 8 genome/ul AAV solution to It was observed whether a viable crystal was formed.
- Viability was confirmed by injecting 100 uL into the tail vein of the mouse within 30 minutes (0.01% (w/w) Tween 80 + 0.5 mM TA + AAV / 0.01% (w/w) Tween 80 + 0.25 mM TA + AAV).
- 50 uL of 2x10 9 genome/ul AAV solution without Tween 80 was mixed with tannic acid under the same conditions and injected into the tail vein of mice (0.5 mM TA + AAV / 0.25 mM TA + AAV).
- 50 uL of PBS solution was prepared in 50 uL of 2x10 9 genome/ul AAV solution and injected under the same conditions (Virus).
- 100 uL (TA) of 0.5 mM tannic acid solution and 100 uL (PBS) of PBS were respectively injected.
- the present inventors attempted to further verify whether the formation of a crystalline structure with the potential to block blood vessels when mixed with plasma can be inhibited through treatment with a surfactant.
- 50 uL of 0.5 mM tannic acid solution was mixed with 50 uL of 1x10 8 genome/ul AAV solution (PBS, pH 7.4) containing each of CTAB, Tween 80 and CHAPS at 0.05% (w/w), and then After 5 minutes, 50 uL of 10% FBS solution was mixed and observed under a microscope whether crystals of 10 ⁇ m or larger were formed.
- PBS 1x10 8 genome/ul AAV solution
- Example 2 Through the results of Example 2, it was confirmed that when AAV and tannic acid were mixed by treating the surfactant together, it was possible to inhibit aggregation and formation of crystals. Therefore, in addition to this, in order to find out the preferred concentration ratio of the surfactant, the particle formation pattern for each concentration of the surfactant was analyzed.
- UV-Vis absorbance in the 600 nm wavelength band was measured for scattering measurement after about 5 minutes, and crystal formation was observed under a microscope.
- UV-Vis absorbance in the 600 nm wavelength band was measured for scattering measurement after about 5 minutes, and crystal formation was observed under a microscope.
- anionic surfactant 3-4.
- the effective concentration that does not form crystals is different depending on the type of surfactant, and when the concentration is too high or too low, the binding of tannic acid and AAV cannot be effectively controlled so that crystalline particles tend to be formed.
- Formation of micro or nanoparticles may be changed according to the influence of an external environment, and in particular, the aspect of particle formation may be changed according to pH conditions. Therefore, the present inventors tried to verify whether the stability of AAV changes according to pH conditions. For this, Tween 80 and CHAPS were each 0.05% (w/w) (PBS, pH 7.4) using different buffers with different pH (PBS pH 7.4, Citric acid pH 4.6, DDW pH 3.0). Prepare an existing 1x10 8 genome/ul AAV solution, mix 50 uL of 0.5 mM tannic acid solution, and then measure the average particle size through dynamic light scattering after about 5 minutes and observe the formation of crystalline particles under a microscope. did.
- AAV particles should be kept constant from mixing to injection. Therefore, it was analyzed whether the particle size was maintained until after 30 minutes, which is an estimated time from mixing to injection, and one day, which is a sufficient time. For this, 50 uL of 0.5 mM tannic acid solution was mixed with 1x10 8 genome/ul AAV solution in which Tween 80 is present at 0.01% (w/w) (PBS, pH 7.4), and then dynamic light scattering method was performed after about 5 minutes. The average particle size was measured at 0 min (min), 20 min, and 1 day (day), respectively, and the increase in particle size was compared with the initial value.
- the present inventors attempted to further reduce the size of the particles by treating additional additives in particle formation through binding between polyphenols and surfactants.
- albumin was selected as the additive and the effect thereof was verified.
- Tween 80 was 0.01% (w/w)
- CHAPS and CTAB were each 0.05% (w/w)
- PBS 50 uL of 0.5 mM tannic acid solution was mixed with 1x10 8 genome/ul AAV solution present at pH 7.4
- 50 uL of 10% (w/w) albumin solution was mixed after about 5 minutes, followed by dynamic light scattering. The average particle size was measured and observed under a microscope.
- the present inventors conducted the following experiment to find out whether the stability of gold nanoparticles, which are inorganic nanoparticles that can be used as gene delivery agents other than AAV, is also maintained through the binding effect between surfactant and tannic acid. Specifically, 50 uL of 0.5 mM tannic acid solution was mixed with 50 uL of gold nanoparticle solution with 450 nm absorbance 0.1 AU concentration in which Tween 80, CHAPS, and CTAB were present at 0.05% (w/w) (PBS, pH 7.4), respectively. Then, after about 5 minutes, the average particle size was measured through dynamic light scattering and observed under a microscope. In addition, the experiment was conducted under the same conditions in which no surfactant was added as a control.
- the stabilization technology of the adeno-associated virus according to the present invention inhibits excessive aggregation between viruses when manufacturing a gene transfer virus and therapeutic nanoparticles using an adeno-associated virus and forming an additional polyphenol conjugate for this, thereby reducing the particle size. Since it maintains an effective size for delivery and increases stability in a liquid phase, it can be usefully used in gene therapy using adeno-associated virus and related fields.
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Abstract
Description
조건 | 결과 |
0.01% Tween 80 + 0.5 mM TA + AAV | 생존 (n=6) |
0.01% Tween 80 + 0.25 mM TA + AAV | 생존 (n=5) |
0.5 mM TA + AAV | 사망 (n=1) |
0.25 mM TA + AAV | 사망 (n=1) |
Virus | 생존 (n=2) |
PBS | 생존 (n=2) |
TA | 생존 (n=2) |
Claims (12)
- 계면활성제 또는 알부민을 포함하는, 아데노연관바이러스(Adeno-Associated Virus; AAV)용 안정화제.
- 제1항에 있어서,상기 계면활성제는 5 내지 20의 친수성-친유성 밸런스(Hydrophile-Lipophile Balance; HLB) 값을 갖는 것을 특징으로 하는, 안정화제.
- 제2항에있어서,상기 계면활성제는 음이온성(Anionic), 양이온성(Cationic), 비이온성(Nonionic) 및 양쪽성 이온형(Zwitter ionic)으로 이루어진 군으로부터 선택되는 것을 특징으로 하는, 안정화제.
- 제1항에 있어서,상기 안정화제는 상기 아데노연관바이러스의 응집을 저해하는 것을 특징으로 하는, 안정화제.
- 제1항에 있어서,상기 아데노연관바이러스는 폴리페놀계 물질로 표면개질된 것을 특징으로 하는, 안정화제.
- 제5항에 있어서,상기 폴리페놀계 물질은 탄닌산(Tannic acid), 카테콜아민(Catecholamine) 또는 에피갈로카테킨 갈레이트(Epigallocatechin gallate; EGCG)인 것을 특징으로 하는, 안정화제.
- 제1항에 있어서,상기 알부민은 10 내지 0.01%(w/w)의 농도로 포함되는 것을 특징으로 하는, 안정화제.
- 아데노연관바이러스(Adeno-Associated Virus; AAV) 및 안정화제를 포함하며, 상기 안정화제는 계면활성제 또는 알부민을 함유하는 것을 특징으로 하는, 아데노연관바이러스 액상 제제.
- 제8항에 있어서,상기 액상 제제는 pH 3.0 내지 8.0로 유지되는 것을 특징으로 하는, 액상 제제.
- 아데노연관바이러스(Adeno-Associated Virus; AAV)에 안정화제를 처리하는 단계를 포함하되, 상기 안정화제는 계면활성제 또는 알부민을 포함하는 것을 특징으로 하는, 안정성이 증진된 아데노연관바이러스의 제조방법.
- 제10항에 있어서,상기 아데노연관바이러스는 폴리페놀계 물질로 표면개질된 것을 특징으로 하는, 제조방법.
- 제11항에 있어서,상기 폴리페놀계 물질은 탄닌산(Tannic acid), 카테콜아민(Catecholamine) 또는 에피갈로카테킨 갈레이트(Epigallocatechin gallate; EGCG)인 것을 특징으로 하는, 제조방법.
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EP20918323.5A EP4104866A4 (en) | 2020-02-10 | 2020-11-20 | STABILIZER FOR ADENO-ASSOCIATED VIRUSES AND METHOD FOR STABILIZING ADENO-ASSOCIATED VIRUSES USING THE SAME |
CN202080096092.1A CN115103692A (zh) | 2020-02-10 | 2020-11-20 | 用于腺相关病毒的稳定剂和通过使用所述稳定剂稳定腺相关病毒的方法 |
AU2020428501A AU2020428501A1 (en) | 2020-02-10 | 2020-11-20 | Stabilizer for adeno-associated viruses and method for stabilizing adeno-associated viruses by using same |
JP2022548843A JP2023515385A (ja) | 2020-02-10 | 2020-11-20 | アデノ随伴ウイルス用安定化剤及びこれを用いたアデノ随伴ウイルスの安定化方法 |
CA3167351A CA3167351A1 (en) | 2020-02-10 | 2020-11-20 | Stabilizer for adeno-associated viruses and method for stabilizing adeno-associated viruses by using same |
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US20240240204A1 (en) * | 2021-05-07 | 2024-07-18 | Board Of Regents, The University Of Texas System | Methods and compositions for transport, storage, and delivery of adeno-associated viral vector and other molecules |
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CA3167351A1 (en) | 2021-08-19 |
US20220372498A1 (en) | 2022-11-24 |
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