JP2016534137A - オボムチン液体製剤及びその調製方法 - Google Patents
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- 108010064983 Ovomucin Proteins 0.000 title claims abstract description 87
- 239000012669 liquid formulation Substances 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims description 28
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 42
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- 150000001413 amino acids Chemical class 0.000 claims abstract description 20
- 102000016943 Muramidase Human genes 0.000 claims abstract description 13
- 108010014251 Muramidase Proteins 0.000 claims abstract description 13
- 108010062010 N-Acetylmuramoyl-L-alanine Amidase Proteins 0.000 claims abstract description 13
- 229960000274 lysozyme Drugs 0.000 claims abstract description 13
- 235000010335 lysozyme Nutrition 0.000 claims abstract description 13
- 239000004325 lysozyme Substances 0.000 claims abstract description 13
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- 150000003077 polyols Chemical class 0.000 claims abstract description 13
- 108010026206 Conalbumin Proteins 0.000 claims abstract description 11
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 9
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
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- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 claims description 6
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- 108010058846 Ovalbumin Proteins 0.000 description 2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/40—Transferrins, e.g. lactoferrins, ovotransferrins
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/50—Isolated enzymes; Isolated proteins
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- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
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- A61K38/46—Hydrolases (3)
- A61K38/47—Hydrolases (3) acting on glycosyl compounds (3.2), e.g. cellulases, lactases
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- A61P31/12—Antivirals
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Abstract
Description
オボムチン 0.01〜0.1%
補助タンパク質 0.001〜0.01%
アミノ酸 1.5〜4%
ポリオール 0.5〜5%
pH値が6〜8である緩衝液又は水 残部、を含み、
前記補助タンパク質はリゾチーム及び/又はオボトランスフェリンである。
1)アミノ酸をpH値が6〜8である緩衝液又は水に溶解して、重量含有量が1.5〜4%であるアミノ酸溶液を得、さらにアミノ酸溶液にオボムチンを添加し、オボムチンの重量含有量が0.01〜0.1%になるようにし、オボムチンが完全に溶解するまで攪拌するステップと、
2)続いてステップ1)の溶液に補助タンパク質を添加して、補助タンパク質の重量含有量が0.001〜0.01%となるようにし、4℃にて50〜100回転/分の速度で攪拌し、十分に溶解させるステップと、
3)最後にポリオールを添加し、ポリオールの重量含有量が0.5〜5%となるようにし、0.45μmの無菌精密ろ過膜(Microfiltration Membrane)で濾過するステップとを、含む。
前記補助タンパク質はリゾチーム及び/又はオボトランスフェリンである。
粘着率(%)=(A−Ac)/(A0−Ac)×100%
ただし、Aは、サンプル穴の490nm箇所での吸光値であり、A0は、細菌制御穴の490nm箇所での吸光値であり、Acは、ブランク対照穴(菌体を添加しない)の吸光値である。
窒素溶解性指数(%)=(上清における窒素含有量−溶剤における窒素含有量)/固体サンプルにおける窒素含有量×100%
注釈:符号「%」がパーセントを示し、重量の割合であり、Rがリゾチームを示し、Lがオボトランスフェリンを示す。
2)続いてステップ1)の溶液に一定量の補助タンパク質を添加して、4℃にて50〜100回転/分の速度で攪拌して、十分に溶解させるステップと、
3)最後に、一定量のマグネシウム塩又はカルシウム塩(例えば、塩化カルシウム、硫酸マグネシウム)とポリオールを添加して、0.45μmの無菌精密ろ過膜で濾過するステップとを、含む。
インフルエンザウィルスはイヌ腎臓細胞(MDCK細胞)の死亡を引き起こすが、オボムチンはウィルスを抑制することができ、それにより細胞に対して保護作用を有している。オボムチン液体製剤の有効性を検証するために、まず、製剤をMDCK細胞と培養し、さらにインフルエンザウィルスに接種して、細胞の生存率とウィルスに対する抑制率を研究する。
細胞生存率(%)=(実験組の平均A値−ブランク対照A値)/(細胞対照組の平均A値−ブランク対照A値)×100
ウィルス抑制率(%)=(実験組(薬物+ウィルス)平均A値−ウィルス対照組の平均A値)/(サンプル組平均A値−ウィルス対照組の平均A値)×100
Claims (10)
- オボムチン液体製剤であって、
オボムチン 0.01〜0.1%と、
補助タンパク質 0.001〜0.01%と、
アミノ酸 1.5〜4%と、
ポリオール 0.5〜5%と、
pH値が6〜8である緩衝液又は水 残部と、を含み、
前記補助タンパク質は、リゾチーム及び/又はオボトランスフェリンであることを特徴とするオボムチン液体製剤。 - 前記オボムチン液体製剤は、50〜500mmol/Lのカルシウムイオン又は10〜500mmol/Lのマグネシウムイオンをさらに含むことを特徴とする請求項1に記載のオボムチン液体製剤。
- 前記オボムチン液体製剤は、50〜200mmol/Lのカルシウムイオン又はマグネシウムイオンを含むことを特徴とする請求項2に記載のオボムチン液体製剤。
- 前記補助タンパク質は、リゾチームとオボトランスフェリンであり、前記リゾチームとオボトランスフェリンとの重量比が1:1であることを特徴とする請求項1〜3のいずれか一項に記載のオボムチン液体製剤。
- 前記アミノ酸は、リジン及び/又はアルギニンであることを特徴とする請求項1〜3のいずれか一項に記載のオボムチン液体製剤。
- 前記ポリオールは、マンニトール及び/又はポリエチレングリコールであることを特徴とする請求項1〜3のいずれか一項に記載のオボムチン液体製剤。
- オボムチン液体製剤の調製方法であって、
1)アミノ酸をpH値が6〜8である緩衝液又は水に溶解して、重量含有量が1.5〜4%であるアミノ酸溶液が得られ、さらにアミノ酸溶液にオボムチンを添加して、オボムチンの重量含有量が0.01〜0.1%となるようにし、オボムチンが完全に溶解するように攪拌するステップと、
2)続いてステップ1)の溶液に補助タンパク質を添加して、補助タンパク質の重量含有量が0.001〜0.01%となるようにし、4℃で50〜100回転/分の速度で攪拌し、十分に溶解させるステップと、
3)最後にポリオールを添加して、ポリオールの重量含有量が0.5〜5%となるようにし、0.45μmの無菌精密ろ過膜(Microfiltration Membrane)で濾過するステップと、を含み、
前記補助タンパク質は、リゾチーム及び/又はオボトランスフェリンであることを特徴とするオボムチン液体製剤の調製方法。 - 前記ステップ2)又は3)にカルシウムイオン又はマグネシウムイオンを添加し、かつカルシウムイオンの濃度が50〜500mmol/Lに達し、或いはマグネシウムイオンの濃度が10〜500mmol/Lに達するステップをさらに含むことを特徴とする請求項7に記載のオボムチン液体製剤の調製方法。
- 前記アミノ酸は、リジン及び/又はアルギニンであることを特徴とする請求項7又は8に記載のオボムチン液体製剤の調製方法。
- 前記ポリオールは、マンニトール及び/又はポリエチレングリコールであることを特徴とする請求項7又は8に記載のオボムチン液体製剤の調製方法。
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