Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K39/00—Medicinal preparations containing antigens or antibodies
  • A61K39/395—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
  • A61K39/39591—Stabilisation, fragmentation
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07K—PEPTIDES
  • C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07K—PEPTIDES
  • C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
  • C07K16/12—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from bacteria
  • C07K16/1203—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from bacteria from Gram-negative bacteria
  • C07K16/1214—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from bacteria from Gram-negative bacteria from Pseudomonadaceae (F)
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K38/00—Medicinal preparations containing peptides
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07K—PEPTIDES
  • C07K2317/00—Immunoglobulins specific features
  • C07K2317/20—Immunoglobulins specific features characterized by taxonomic origin
  • C07K2317/21—Immunoglobulins specific features characterized by taxonomic origin from primates, e.g. man

Definitions

• Polyclonal antibodies are generally stable against these heating, lyophilization, and acid / alkaline treatments, whereas monoclonal antibodies are denatured by such treatments, and their activities are reduced. Easy to lose.
• IgM is more unstable than other globulin-type monoclonal antibodies (eg, IgG, IgA, IgE).
• heat treatment for example, Japanese Patent Application Laid-Open No. 61-76423 discloses that monoclonal antibody is unstable to heat treatment, and in order to overcome this thermal instability, egg albumin hydrolyzes in monoclonal antibody preparations. It discloses that a substance is added.
• sugar alcohol sorbitol, mannitol and the like can be used, but mannitol is preferred.
• Amino acids include glycine, alanine, norin, leucine, isoloisin, tyrosine, pheninoleanine, serine, threonine, glutamine, glutamic acid, asparagine, Aspartic acid, arginine, lysine, histidine, proline, tributphan, methionine, cystine and the like can be used, but glycine or arginine is preferred.
• the pH of the solution for dissolving the monoclonal antibody is pH 4.0 to 8.1 when gelatin is added, when carboxylic acid is added, and when both gelatin and carboxylic acid are added.
• Common used compounds such as organic acids, inorganic acids, and inorganic salts can be used alone or in combination.
• Compounds that can be used for pH adjustment include, for example, citrate, sodium citrate, potassium citrate, phosphoric acid, sodium phosphate, and phosphoric acid.
• the monoclonal antibody solution prepared in this way is sufficiently stable when frozen and freeze-dried as is, but isotonicity of the solution Surfactants such as Tween 20 or Tween 80, albumin such as human beef, or chelating agents such as EDTA etc. This is also possible.
• IgM is exemplified as a monoclonal antibody.
• IgM is unstable compared to other globulin-type antibodies (eg, IgG, IgA and IgE), and The stabilizing effect indicated by is easily applicable to other globulin-type antibodies.
• Epstein-Barr 'Pills (EB virus) transformed cell line MP-5038 (EBK No. 1596) reactive with E. serotype Pseudomonas aeruginosa was cultured and sulfated from the culture supernatant.
• the human 'monoclonal antibody was purified by column chromatography.
• the monoclonal antibody obtained by this method had a purity of 99% or more in SDS-electrophoresis and HPLC analysis using a gel filtration column.
• PBS Phosphate-buffered saline adjusted to ⁇ 7.4 so that the final concentration of this monoclonal antibody is O.lmg / ⁇
• gelatin Nitsubishi Corporation, high grade gelatin, type A (neutral gelatin) and type B (acidic gelatin)
• PBS Phosphate-buffered saline adjusted to ⁇ 7.4 so that the final concentration of this monoclonal antibody is O.lmg / ⁇
• gelatin Nitsubishi Corporation, high grade gelatin, type A (neutral gelatin) and type B (acidic gelatin)
• 0.5mfi was aseptically dispensed into polypropylene cryotubes (Corning) and frozen at 180 ⁇ . This was freeze-dried under reduced pressure in vacuum. After drying, an equivalent amount of distilled water for injection was added to the lyophilized product before freezing, and the lyophilized product was dissolved.
• the antigen binding activity of the monoclonal antibody was measured by
• washing solution PBS containing 0.05% Tween20
• block solution PBS containing 0.5% bovine serum albumin
• the enzyme reaction was stopped by adding 2% succinic acid at 50 i / gel, and the absorbance at 414 nm was measured using a 966-plate reader (Japan Intermed). A logarithmic plot was performed between the reciprocal of the dilution factor and the absorbance, and the dilution factor when the absorbance was 0.1 was determined, and this was defined as the antigen binding activity.
• the monoclonal antibody used in Example 1 was dissolved in buffers at each pH so that the final concentration was 0.1 mg / mJli.
• neutral gelatin was added to a final concentration of 0.01%, and 0.5mfi was aseptically dispensed into a polypropylene cryotube, frozen at 180, and freeze-dried under vacuum. .
• the same volume of distilled water for injection as before freezing was added to the lyophilized product to dissolve it, and then the antigen binding activity was measured.
• the final concentration of the monoclonal antibody used in Example 1 was added to a 50 mM phosphate buffer containing sodium citrate at an extension of 200 mM from ⁇ and adjusted to pH 6.1 to 8.1. And dissolved so as to be O.lmg / ⁇ . At this time, if the salt concentration of the solution was less than 150 mM, sodium chloride was added to bring the concentration to 150 mM.
• This monoclonal antibody solution was aseptically dispensed into polypropylene tubes at a rate of 0.5 mfi, frozen at 180, and freeze-dried under reduced pressure in vacuo. The same amount of distilled water for injection as before the freezing was added to the freeze-dried product and dissolved, and then the antigen binding activity was measured.
• the monoclonal antibody used in Example 1 was dissolved in PBS to a final concentration of 0.1 mg / mL.
• neutral gelatin was added to a final concentration of 0.003%, and glucose, sucrose, mannitol, glycine, or arginine was added to a final concentration of 0.001 to 0.1%, respectively.
• 0.5 ⁇ was aseptically dispensed into polypropylene cryotubes at a time and frozen in one. This was freeze-dried under reduced pressure under vacuum, and an equal volume of distilled water for injection was added to the freeze-dried product before freezing, and the antigen-binding activity was measured.
• Table 5 shows the relative activities, where the activity before freeze-drying was set to 10.
• the antibody activity was well recovered in any of the low-molecular substances, and the effect depended on the concentration of the added low-molecular compound.
• This monoclonal antibody solution was aseptically dispensed into glass vials (Iwaki Glass Co., Ltd.) with a capacity of 10 mF each, frozen at 180, and freeze-dried under reduced pressure. An antigen-binding activity was measured after adding an equal volume of distilled water for injection to the freeze-dried product before freezing and lysing. as a result, The monoclonal antibody retained the antigen-binding activity before freezing.
• the monoclonal antibody used in Example 1 was prepared by adding sodium citrate (0.02 ⁇ ), sodium chloride (0.05 ⁇ ), and mannitol (0.5 ⁇ ) to a concentration of l lgZ. %) Was dissolved in 0.1M phosphoric acid bite solution ( ⁇ 7.0). This monoclonal antibody solution was dispensed into glass vials, frozen at 180, and freeze-dried under reduced pressure under vacuum. An equal volume of distilled water for injection before freezing was added to the lyophilizate to dissolve it, and then the antigen-binding activity was measured according to Example 1. As a result, the monoclonal antibody retained the antigen-binding activity before freezing.
• a human / human hybridoma MP 5121 (Shenzhen 2270) produced by the cell fusion method and produces human Igfi that is reactive to S. cerevisiae bacteria is cultured.
• Monoclonal antibodies were purified from the culture supernatant according to Example III. This monoclonal antibody was adjusted to a concentration of lmg / Bfi with sodium citrate (0.05%), sodium chloride (0.05%), mannitol (0.5% ) was dissolved in a 0.1 M phosphate buffer ( ⁇ 7.0). This monoclonal antibody solution was dispensed into glass vials, frozen at 180 TC, and then lyophilized under reduced pressure under vacuum.
• the same amount of distilled water for injection as before the freezing was added to the lyophilizate to dissolve it, and the antigen-binding activity was measured according to Example 1.
• the LPS of the antigen was extracted from serotype A serotype Bacillus (ATCC 27577). As a result, monoclonal antibodies are frozen It retained the antigen binding activity before the conclusion.
• Human IgM-producing human and human hybridomas prepared by the cell fusion method MP 5097, MP 5139, MP 5114 and MP 5156 (Researcher No. 2268, 2272, 2269 and 2339, respectively) Monoclonal antibodies were purified from the culture supernatant of (1). These monoclonal antibodies were reactive with Pseudomonas aeruginosa, and were reactive with serotypes B, E, G, and I, respectively. A total of five of these four monoclonal antibodies and the monoclonal antibody shown in Example 9 were added to sodium citrate (0.02%) so that the final concentration was 5 mgZmJa. M), sodium chloride (0.05M) and mannitol (0.5%) in 0.1M phosphate buffer ( ⁇ 7.0).

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• Chemical & Material Sciences (AREA)
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• Life Sciences & Earth Sciences (AREA)
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• Medicinal Chemistry (AREA)
• General Health & Medical Sciences (AREA)
• Immunology (AREA)
• Biochemistry (AREA)
• Proteomics, Peptides & Aminoacids (AREA)
• Molecular Biology (AREA)
• Genetics & Genomics (AREA)
• Biophysics (AREA)
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• Animal Behavior & Ethology (AREA)
• Pharmacology & Pharmacy (AREA)
• Mycology (AREA)
• Microbiology (AREA)
• Engineering & Computer Science (AREA)
• Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
• Preparation Of Compounds By Using Micro-Organisms (AREA)
• Medicinal Preparation (AREA)

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Cited By (4)

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• 1992
  • 1992-02-27 JP JP4041015A patent/JPH0565233A/ja active Pending
  • 1992-02-28 EP EP92906211A patent/EP0531539B1/en not_active Expired - Lifetime
  • 1992-02-28 DE DE69225757T patent/DE69225757T2/de not_active Expired - Fee Related
  • 1992-02-28 DE DE69232617T patent/DE69232617T2/de not_active Expired - Fee Related
  • 1992-02-28 DK DK92906211T patent/DK0531539T3/da active
  • 1992-02-28 AU AU13375/92A patent/AU645187B2/en not_active Ceased
  • 1992-02-28 DK DK97120255T patent/DK0841067T3/da active
  • 1992-02-28 WO PCT/JP1992/000226 patent/WO1992015331A1/ja not_active Ceased
  • 1992-02-28 EP EP97120255A patent/EP0841067B1/en not_active Revoked
  • 1992-02-28 FI FI924982A patent/FI924982A7/fi not_active Application Discontinuation
  • 1992-02-28 CA CA002082169A patent/CA2082169A1/en not_active Abandoned
  • 1992-11-06 NO NO92924279A patent/NO924279L/no unknown
• 1994
  • 1994-11-14 US US08/340,319 patent/US5908826A/en not_active Expired - Fee Related

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