JP4741504B2 - Il−18結合タンパク質の精製方法 - Google Patents
Il−18結合タンパク質の精製方法 Download PDFInfo
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- JP4741504B2 JP4741504B2 JP2006537319A JP2006537319A JP4741504B2 JP 4741504 B2 JP4741504 B2 JP 4741504B2 JP 2006537319 A JP2006537319 A JP 2006537319A JP 2006537319 A JP2006537319 A JP 2006537319A JP 4741504 B2 JP4741504 B2 JP 4741504B2
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- PYLIXCKOHOHGKQ-UHFFFAOYSA-L disodium;hydrogen phosphate;heptahydrate Chemical compound O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O PYLIXCKOHOHGKQ-UHFFFAOYSA-L 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/705—Receptors; Cell surface antigens; Cell surface determinants
- C07K14/715—Receptors; Cell surface antigens; Cell surface determinants for cytokines; for lymphokines; for interferons
- C07K14/7155—Receptors; Cell surface antigens; Cell surface determinants for cytokines; for lymphokines; for interferons for interleukins [IL]
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Biochemistry (AREA)
- Genetics & Genomics (AREA)
- Gastroenterology & Hepatology (AREA)
- Toxicology (AREA)
- Immunology (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Zoology (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Cell Biology (AREA)
- Peptides Or Proteins (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Description
本発明は、IL−18結合タンパク質(IL−18BP)の精製方法の開発に基づく。
本発明は、精製されたIL−18BPをもたらすIL−18BP用の精製工程の開発に基づく。
(a)当該液体を固定化金属イオンアフィニティクロマトグラフィーにかけるステップ、
(b)この金属イオンアフィニティクロマトグラフィーの溶出液を疎水性電荷誘起クロマトグラフィーにかけるステップ、
(c)この疎水性電荷誘起クロマトグラフィーの溶出液を陽イオン交換クロマトグラフィーにかけるステップ、
(d)この陽イオン交換クロマトグラフィーのフロースルーを疎水性相互作用クロマトグラフィーにかけるステップ、
(e)この疎水性相互作用クロマトグラフィーの溶出液を逆相クロマトグラフィーにかけるステップ
を含む。
1.捕捉のステップ
IL−18BP発現CHO細胞由来の無血清細胞培養上清300 L中に存在するIL−18BPをQセファロースFF樹脂上で捕捉した。この捕捉した材料を、数滴の35%オルトリン酸(H3PO4)および約0.35 Mに相当する量の固体NaClを加えることによってpH 8.5±0.1、導電率50±5 mS/cmに調整した。
上記(1)により捕捉した材料から出発する精製工程を次に詳細に述べる。精製工程の工程図を図1に示す。
装置
・クロマトグラフィーカラム:XK1.6×20 cm(Amersham Biosciences)
・2個のチャネル記録計を備えたUVモニター(光路長2.5 mm)(Amersham Biosciencesまたは同等品)
・蠕動ポンプ(Minipuls Gilsonまたは同等品)
・UV分光光度計(Shimadzuまたは同等品)
・pHメーター(Metrohmまたは同等品)
・電気伝導度測定器(Metrohmまたは同等品)
・天秤(MettleToledoまたは同等品)
材料
・キレーティングセファロースファストフロー樹脂(Amersham Biosciences)
・水酸化ナトリウムペレット(Merck)
・硫酸銅(Merck)
・氷酢酸(Merck)
・エチレンジアミンテトラ酢酸(EDTA)(Fluka)
・塩化ナトリウム(NaCl)(Merck)
・精製水(Modulabまたは同等品)
・リン酸二ナトリウム水素二水化物(Merck)
・酢酸アンモニウム(Merck)
・25%アンモニア溶液(Merck)
・85%オルトリン酸(Merck)
・50%水酸化ナトリウム溶液(Baker)
緩衝液および溶液
・金属充填液:0.2 M硫酸銅
・酸性化水
・平衡化緩衝液:50 mMリン酸ナトリウム(pH 8.5±0.1)、0.5 M NaCl
・溶出緩衝液:0.075 M酢酸アンモニウム(pH 9.0±0.1)
・再生液:20 mMリン酸ナトリウム(pH 5.8±0.3)、0.5 M NaCl、50 mM EDTA
・殺菌液:0.5 M NaOH
このステップは、MEP樹脂、すなわち疎水性相互作用クロマトグラフィー(HIC)とイオン交換クロマトグラフィー(IEC)の中間混合物である疎水性電荷誘起クロマトグラフ樹脂上で実施する。
装置
・クロマトグラフィーカラム:XK1.6×20 cm(Amersham Biosciences)
・2個のチャネル記録計を備えたUVモニター(光路長2.5 mm)(Amersham Biosciencesまたは同等品)
・蠕動ポンプ(Minipuls Gilsonまたは同等品)
・UV分光光度計(Shimadzuまたは同等品)
・pHメーター(Metrohmまたは同等品)
・電気伝導度測定器(Metrohmまたは同等品)
・天秤(MettleToledoまたは同等品)
材料
・IMAC後r−hIL−18BP
・MEP HyperCel(登録商標)樹脂(BioSepra−Cypergen Biosystems)
・水酸化ナトリウムペレット(Merck)
・塩化カリウム(Merck)
・エチレンジアミンテトラ酢酸(EDTA)(Fluka)
・塩化ナトリウム(NaCl)(Merck)
・精製水(Modulabまたは同等品)
・リン酸二ナトリウム水素七水化物(Merck)
・リン酸二ナトリウム水素一塩基性二水化物(Merck)
・リン酸カリウム(Merck)
・1, 2−プロパンジオール(プロピレングリコール)(Merck)
・85%オルトリン酸(Merck)
・50%水酸化ナトリウム溶液(Baker)
緩衝液および溶液
・平衡化緩衝液:リン酸緩衝塩類液(PBS)1×pH 6.1±0.1、1 NaCl(導電率95±5 mS/cm)
・洗浄緩衝液:PBS 1×pH 6.1±0.1、導電率16±2 mS/cm
・溶出緩衝液:20 mMリン酸緩衝液(pH 8.4±0.1)、35%プロピレングリコール(導電率1.1±0.3 mS/cm)
・再生液1:精製水
・再生液2:100 mM EDTA
・殺菌液:1M NaOH
装置
・限外濾過装置Vivaflow 200、カットオフ5000D(RC、PES、またはHydroSart)(Sartoriusまたは同等品)
・蠕動ポンプ型Masterflexまたは同等品
・UV分光光度計(Shimadzuまたは同等品)
・pHメーター(Metrohmまたは同等品)
・電気伝導度測定器(Metrohmまたは同等品)
・天秤(MettleToledoまたは同等品)
材料
・IMAC後r−hIL−18BP中間体
・水酸化ナトリウムペレット(Merck)
・精製水(Modulabまたは同等品)
ダイアフィルトレーション用溶液
・ModulabまたはMilli Q systemsによる精製水
・殺菌液:0.5 M NaOH
この限外濾過のステップは室温(+20±5℃)で行った。
装置
・クロマトグラフィーカラム:AC10/20 cm(Amersham Biosciences)
・2個のチャネル記録計を備えたUVモニター(光路長2.5 mm)(Amersham Biosciencesまたは同等品)
・蠕動ポンプ(Minipuls Gilsonまたは同等品)
・UV分光光度計(Shimadzuまたは同等品)
・pHメーター(Metrohmまたは同等品)
・電気伝導度測定器(Metrohmまたは同等品)
・天秤(MettleToledoまたは同等品)
材料
・限界濾過済みのMEP後r−hIL−18BP中間体
・CMセファロースFF樹脂(Amersham Biosciences)
・水酸化ナトリウムペレット(Merck)
・MES(2−[N−モルホリノ]エタンスルホン酸)(Sigmaまたは同等品)
・精製水(Modulabまたは同等品)
・塩化ナトリウム(Merck)
緩衝液および溶液
・予備平衡化緩衝液:20 mM MES、pH 5.0±0.5、導電率150±50 μsi/cm
・平衡化緩衝液:1 mM MES、pH 6.0±0.2、導電率45±15 μsi/cm
・再生液:1.5 M NaCl
・殺菌液:0.5 M NaOH
・保存液:0.01 M NaOH
装置
・クロマトグラフィーカラム:XK16/20(Amersham Biosciences)
・2個のチャネル記録計を備えたUVモニター(光路長2.5 mm)(Amersham Biosciencesまたは同等品)
・蠕動ポンプ(Minipuls 2 Gilsonまたは同等品)
・UV分光光度計(Shimadzuまたは同等品)
・pHメーター(Metrohmまたは同等品)
・電気伝導度測定器(Metrohmまたは同等品)
・天秤(MettleToledoまたは同等品)
材料
・CM後のr−hIL−18BP中間体
・フェニルセファロースFF HS樹脂(Amersham Biosciences)
・四ホウ酸二ナトリウム十水化物(Merck)
・硫酸アンモニウム(Merck)
・Modulabによる精製水または同等品
・水酸化ナトリウムペレット(Merck)
・50%NaOH溶液(J. T. Baker)
緩衝液および溶液
・平衡化緩衝液:50 mMホウ酸ナトリウム(pH 9.1±0.2)、0.9 M硫酸アンモニウム(導電率122±6 mS)
・溶出緩衝液:50 mMホウ酸ナトリウム(pH 9.1±0.2)、0.15 M硫酸アンモニウム(導電率30±2 mS/cm)
・再生緩衝液:精製水
・殺菌液:0.5 M NaOH
装置
・クロマトグラフィーカラム:AC10//20(Amersham Biosciences)
・2個のチャネル記録計を備えたUVモニター(光路長2.5 mm)(Amersham Biosciencesまたは同等品)
・蠕動ポンプ(Minipuls 2 Gilsonまたは同等品)
・UV分光光度計(Shimadzuまたは同等品)
・直線的濃度勾配を実施するためのFPLCシステムまたは同等システム
・pHメーター(Metrohmまたは同等品)
・電気伝導度測定器(Metrohmまたは同等品)
材料
・HIC後IL−18BP
・Source 30 RPC樹脂(Amersham Biosciences)
・塩化ナトリウム(Merck)
・四ホウ酸二ナトリウム十水化物(Merck)
・50%NaOH溶液(Baker)
・精製水(Modulabまたは同等品)
・アセトニトリル(Merck)
・トリフルオロ酢酸(J. T. Baker)
・pH 0〜14広域指示薬(Merck)
緩衝液および溶液
・溶液A:水に溶かした0.1%TFA
・溶液B:ACNに溶かした0.1%TFA
・平衡化緩衝液:50 mMホウ酸ナトリウム、pH 9.1±0.2、導電率5±2 mS/cm
・殺菌液:0.5 M NaOH
無血清細胞培地中に存在するCHO細胞由来の汚染物質に対してウサギ中で産生したポリクローナル抗血清を用いてELSAにより宿主細胞タンパク質の量を測定した。宿主細胞タンパク質の量は、精製IL-18BPに対する汚染タンパク質のppm(100万分の1)として表される。IL-18BPの量は、IL-18BPの精製した製剤中、すなわち逆相クロマトグラフィーによる最終精製ステップ後の280 nm(モル吸光係数ε=1.26)における光学濃度(OD)を求めることによって測定した。
(in vitroバイオアッセイにおけるKg−1細胞による生物学的効力の判定)
S1、S2、およびS3=用量応答−曲線の直線部分に当たる2種類の異なる濃度の試料(1試料当たり2回の繰返し)、例えばS11=濃度1の試料1、S12=濃度2の試料1。
プレート上の記録した試料位置は例である。
・行B〜Cの第一ウェルに、1500 ng/mL(ウェル中300 ng/mL)のr-hIL-18BP基準材料150 μLを加える。
・マルチチャンネルピペットを用いて列1中のウェルから列9のウェル(行B〜C)まで100 μLを移し、列9中のウェルから過剰の100 μL を廃棄することによって連続的に1:1.5希釈を実施する。
・行Dの列1〜2中のウェルに、用量応答−曲線の直線部分に当たる2種類の濃度のうちの一方で調製したr-hIL-18BP試料(例えばそのウェル中の120 ng/mLに相当する600 ng/mLのS11)50 μLを加える(2回の繰返し)。
注記:報告したプレート内での試料位置は一例として提供するものである。
・第二(S12)試料の濃度について(4)を繰り返す。
・列12中のものを除き行B〜Cすべてのウェルに、また試料を含有するウェル(例えば列1〜2、行D〜E)に、200 ng/mL(ウェル中40 ng/mL)のr-hIL-18を50 μL加える。
・列11中のものを除き行B〜Cすべてのウェルに、また試料を含有するウェル(例えば列1〜2、行D〜E)に、50 ng/mL(ウェル中10 ng/mL)のr-r-hTNF-αを50 μL加える。
・行B〜Cの列11および12中のウェルに培地50 μLを加える。
・行Aのウェル(対照細胞のウェル)のすべてに培地150 μLを加える。
・96ウェルプレートのすべてのウェルに、1 mL当たり細胞1×108個でKg−1細胞懸濁液100 μLを加える。
注記:ウェル中の最終体積は250 μLであり、r-hIL-18BPの最終希釈度は1:5である。細胞懸濁液は20〜24×106個未満の細胞を含有するT75フラスコから調製する(培地15 mL)。
・このプレートを37℃の5%CO2で24時間インキュベートする。
・プレートをインキュベーターから取り出し、その細胞上清中に存在するIFN-γの量を測定するためにイムノアッセイを実施するまで−20℃に置く。
・細胞上清を回収し、ヒトIFN-γを特異的イムノアッセイ(ELISA h-IFN-γ、Duo Set R&D Systemsのキット)により測定した。
注記 測定されるO.D.値がIFN-γ標準曲線上で定量化可能なことを確実にするために、加えられるr-hIL-18BPの濃度によっては、必要に応じて細胞上清試料の1倍を超える希釈を実施する。
・洗浄ステップの回数は、3回から4回、また最後については4回から5回に増した。
・ブロッキング緩衝液は、PBSに溶かした1%BSA(スクロースとNaN3のどちらも加えない)を加えることによって調製。
・希釈剤試薬は、トリス緩衝塩類液の代わりにPBSに溶かした0.1%BSAおよび0.05%トゥイーン−20を加えることによって調製。
Claims (17)
- 精製IL-18結合タンパク質(IL-18BP)の産生方法であって、IL-18BPを含む、尿又は細胞培養上清から選択される液体を、4−メルカプト−エチル−ピリジン(MEP)樹脂上での疎水性電荷誘起クロマトグラフィーのステップにかけることを含んで成る、方法。
- 固定化金属イオンアフィニティクロマトグラフィー、イオン交換クロマトグラフィー、疎水性相互作用クロマトグラフィー、および逆相クロマトグラフィーから選択されるステップをさらに含む、請求項1に記載の方法。
- 前記金属イオンアフィニティクロマトグラフィーをキレート樹脂上で実施する、請求項2に記載の方法。
- 前記イオン交換クロマトグラフィーが陽イオン交換クロマトグラフィーである、請求項2に記載の方法。
- 前記陽イオン交換クロマトグラフィーをカルボキシメチル(CM)樹脂上で実施する、請求項4に記載の方法。
- 前記疎水性相互作用クロマトグラフィーをフェニル樹脂上で実施する、請求項2に記載の方法。
- 逆相クロマトグラフィーの前記ステップを高分子逆相マトリックス上で実施する、請求項2に記載の方法。
- 前記高分子逆相マトリックスが逆相Source 30 RPCである、請求項7に記載の方法。
- (a)前記液体を金属イオンアフィニティクロマトグラフィーにかけるステップ、
(b)前記金属イオンアフィニティクロマトグラフィーの溶出液を疎水性電荷誘起クロマトグラフィーにかけるステップ、
(c)前記疎水性電荷誘起クロマトグラフィーの溶出液を陽イオン交換クロマトグラフィーにかけるステップ、
(d)前記陽イオン交換クロマトグラフィーのフロースルーを疎水性相互作用クロマトグラフィーにかけるステップ、および
(e)前記疎水性相互作用クロマトグラフィーの溶出液を逆相クロマトグラフィーにかけるステップ
を含む、請求項1〜8のいずれか1項に記載の方法。 - 1回または複数回の限外濾過のステップをさらに含む、請求項1〜9のいずれか1項に記載の方法。
- 1回または複数回のウィルス除去の濾過ステップをさらに含む、請求項1〜10のいずれか1項に記載の方法。
- 初期捕捉のステップを含む、請求項1〜11のいずれか1項に記載の方法。
- 前記捕捉のステップを強陰イオン交換クロマトグラフィーによって実施する、請求項12に記載の方法。
- 前記捕捉のステップを第四アンモニウム(Q)樹脂上で実施する、請求項13に記載の方法。
- 前記捕捉のステップをTMAE樹脂上で実施する、請求項13に記載の方法。
- 前記IL-18BPがヒトの組換えIL-18BPである、請求項1〜15のいずれか1項に記載の方法。
- 前記液体が無血清細胞培養上清である、請求項1〜15のいずれか1項に記載の方法。
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PCT/EP2004/052807 WO2005049649A1 (en) | 2003-11-05 | 2004-11-04 | Process for the purification of il-18 binding protein |
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IL175431A (en) | 2011-02-28 |
HRP20070196T3 (en) | 2007-06-30 |
ATE360647T1 (de) | 2007-05-15 |
DE602004006157D1 (de) | 2007-06-06 |
ES2285543T3 (es) | 2007-11-16 |
PL1689777T3 (pl) | 2007-09-28 |
AU2004291341B2 (en) | 2010-08-05 |
IL175431A0 (en) | 2006-09-05 |
EP1689777A1 (en) | 2006-08-16 |
ME01198B (me) | 2013-03-20 |
DK1689777T3 (da) | 2007-06-11 |
PT1689777E (pt) | 2007-05-31 |
EP1689777B1 (en) | 2007-04-25 |
NO330538B1 (no) | 2011-05-09 |
AU2004291341A1 (en) | 2005-06-02 |
SI1689777T1 (sl) | 2007-08-31 |
NO20062545L (no) | 2006-08-03 |
RS50516B (sr) | 2010-05-07 |
CA2544146C (en) | 2012-10-02 |
CA2544146A1 (en) | 2005-06-02 |
JP2007533651A (ja) | 2007-11-22 |
US7820800B2 (en) | 2010-10-26 |
DE602004006157T2 (de) | 2008-01-03 |
CY1106683T1 (el) | 2012-05-23 |
US20070037734A1 (en) | 2007-02-15 |
WO2005049649A1 (en) | 2005-06-02 |
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