JP2017514826A - カプリル酸を用いてタンパク質を精製する方法 - Google Patents
カプリル酸を用いてタンパク質を精製する方法 Download PDFInfo
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Classifications
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- C07K1/14—Extraction; Separation; Purification
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-
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- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/12—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the preparation of the feed
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- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/18—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
- B01D15/1892—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns the sorbent material moving as a whole, e.g. continuous annular chromatography, true moving beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/20—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the sorbent material
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- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction
- B01D15/361—Ion-exchange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/38—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups B01D15/265 - B01D15/36
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/06—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies from serum
- C07K16/065—Purification, fragmentation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
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- Medicinal Chemistry (AREA)
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- Proteomics, Peptides & Aminoacids (AREA)
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- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
i. 固定相にタンパク質含有サンプルをロードし、前記固定相に標的タンパク質が結合されるようにする工程;
ii. 結合された標的タンパク質を有する固相をカプリル酸溶液に曝露する工程であって、前記カプリル酸溶液が遊離カプリル酸を生成するようなpHであり、前記カプリル酸溶液が、遊離カプリル酸に関して測定される濃度が1〜50 mMであるカプリル酸緩衝液である、工程;
iii. 前記標的タンパク質を溶出する工程
を含む、サンプルから標的タンパク質を精製するための方法を提供する。
i. 固定相にタンパク質含有サンプルをロードし、前記固定相に標的タンパク質が結合されるようにする工程;
ii. 固相をカプリル酸溶液に曝露する工程;及び
iii. 前記標的タンパク質を溶出する工程
を含む、サンプルから標的タンパク質を精製するための方法を対象とする。
ii. 結合された標的タンパク質を有する固相をカプリル酸溶液に曝露する工程であって、前記カプリル酸溶液が、遊離カプリル酸を生成するpHであり、遊離カプリル酸に関して測定される濃度が1〜50 mMであるカプリル酸緩衝液である、工程;及び
iii. 前記標的タンパク質を溶出する工程
を含む、サンプルから標的タンパク質を精製するための方法。
i. アフィニティークロマトグラフィー用の固定相に1つ以上の前記タンパク質を含むサンプルをロードする工程;
ii. 遊離カプリル酸に関して測定される濃度が2〜10 mM、例えば2〜8 mM、例えば2〜6 mMで、4.9<pH<6.2のpHのカプリル酸溶液に、固相を曝露し、ウイルスを不活性化し洗い流す工程;
iii. 標的タンパク質を溶出する工程
を含む、方法。
組換えヒトFab断片を含む細胞株培地を、0.22 μmで濾過し、その後eMuLVウイルスを混入させた。Capto L媒体(GE-Healthcare)を充填したカラムに混入培地をアプライした。ロード後、カラムをまず平衡緩衝液(20 mM ホスフェート、150 mM NaCl、pH 7.2)を用いて洗浄し、その後pH 5.5の35 mM カプリル酸緩衝液(5.8 mM 遊離カプリル酸)を用いて洗浄した。カプリル酸緩衝液を用いた30分間の洗浄の後、pH 3.5の20 mM ギ酸を用いてFab断片をカラムから溶出させた。プロセス温度は15〜25℃であった。Fab断片の収率は97%であり、Fab断片を含む溶出画分中にeMuLVは検出されなかった(表1)。
組換えヒト抗体(IgG1)を含む細胞株培地を、0.22 μmフィルターで濾過し、eMuLVウイルスを混入させた。プロテインA(Mab Select SuRe、Ge Healthcare)を充填したカラムに混入培地をロードした。ロード後、カラムをまず平衡緩衝液(50 mmol/kg ホスフェート、300 mmol/kg NaCl、pH 7.0)を用いて洗浄し、その後pH 5.8の32 mmol/kg カプリレート緩衝液(2.9 mM 遊離カプリル酸)を用いて洗浄した。最悪条件(低カプリル酸濃度)におけるこの工程の有効性を示すために、低濃度のカプリレート及び高pHを用いた。pHが安定化された後、洗浄を30分間続けた。さらなる3回の洗浄(平衡緩衝液、50 mmol/kg ホスフェート、1 mol/kg NaCl、そしてその後平衡緩衝液)後、ギ酸緩衝液、pH 3.5を用いてカラムからmAbを溶出させた。mAbの収率は100%であり、mAbを含む溶出画分中にeMuLVは検出されなかった(表2)。プロセス温度は15〜25℃であった。
組換えヒト抗体(IgG4)を含む細胞株培地を、0.22 μmフィルターを通して濾過し、eMuLVウイルスを混入させた。プロテインA(Mab Select SuRe、Ge Healthcare)を充填したカラムに混入培地をロードした。ロード後、カラムをまず平衡緩衝液(50 mmol/kg ホスフェート、300 mmol/kg NaCl、pH 7.0)を用いて洗浄し、その後pH 5.8の32 mmol/kg カプリレート緩衝液(2.9 mM 遊離カプリル酸)を用いて洗浄した。pHが安定化された後、洗浄を30分間続けた。さらなる3回の洗浄(平衡緩衝液、50 mmol/kg ホスフェート、1 mol/kg NaCl)、そしてその後平衡緩衝液)後、ギ酸緩衝液、pH 3.5を用いてカラムからmAbを溶出させた。mAbの収率は90%であり、mAbを含む溶出画分中にeMuLVは検出されなかった(表3)。プロセス温度は15〜25℃であった。
組換えヒト抗体(IgG1)を含む細胞株培地を、0.22 μmフィルターを通して濾過し、eMuLVウイルスを混入させた。プロテインA(Mab Select SuRe、Ge Healthcare)を充填したカラムに混入培地をロードした。ロード後、カラムをまず平衡緩衝液(50 mmol/kg ホスフェート、300 mmol/kg NaCl、pH 7.0)を用いて洗浄し、その後pH 5.7の35 mmol/kg カプリレート緩衝液(3.9 mM 遊離カプリル酸)を用いて洗浄した。pHが安定化された後、洗浄を30分間続けた。さらなる3回の洗浄(平衡緩衝液、50 mmol/kg ホスフェート、1 mol/kg NaCl、そしてその後平衡緩衝液)後、ギ酸緩衝液、pH 3.5を用いてカラムからmAbを溶出させた。
組換えヒト抗体(IgG1)を含む170リットルの細胞株培地を、パイロットプラントにおいて二等分し、その後、別個に、自動クロマトグラフィーシステム(AKTA pilot、GE Healthcare)のプロテインA(Mab Select SuRe、Ge Healthcare)を含むカラムに通した。
種々のカプリル酸濃度及び種々のpHにおけるMuLVの不活性化を調査した(表6)。5.0〜6.0の範囲のpHにおいて、遊離カプリル酸濃度が少なくとも約4 mMに維持されるように、pHを上昇させるとともにカプリル酸濃度を高めた場合、5分間後にMuLVの完全な不活性化が達成された。約2 mMのカプリル酸濃度では、反応時間を増加させ、これらの最も困難なウイルスについて30分間後に部分的な不活性化が得られた。1mM未満では、不活性化は観察されなかった。
Claims (15)
- i. 固定相にタンパク質含有サンプルをロードして、該固定相に標的タンパク質を結合させる工程;
ii. 結合された前記標的タンパク質を有する固相をカプリル酸溶液に曝露する工程であって、前記カプリル酸溶液が、遊離カプリル酸を生成するpHであり、遊離カプリル酸に関して測定される濃度が1〜50 mMであるカプリル酸緩衝液である、工程;
iii. 前記標的タンパク質を溶出する工程
を含む、サンプルから前記標的タンパク質を精製するための方法。 - 前記標的タンパク質の精製が、前記サンプル中のウイルスの不活性化を含む、請求項1に記載の方法。
- ウイルスを含まないタンパク質溶液を調製するための、請求項1又は2に記載の方法。
- 前記カプリル酸溶液が、i) カプリル酸塩と、ii) pH 7.0未満、例えばpH 6.5以下のpHで、遊離カプリル酸に関して測定される濃度が少なくとも1 mM、例えば少なくとも2 mM、例えば2〜10 mMの濃度のカプリル酸の溶液をもたらす割合の無機酸又は有機酸との組み合わせを含む、請求項1〜3のいずれか一項に記載の方法。
- 前記タンパク質が、抗体、又はその断片、第V因子、第VII因子、第VIII因子、第IX因子、第X因子、第XI因子、及び第VIII因子等の凝固因子、並びに成長ホルモンから成る群から選択される、請求項1〜4のいずれか一項に記載の方法。
- 前記サンプルが、発酵培養液、細胞培養、細胞株培地、腹水、組織培養培地、トランスジェニック細胞培地、血漿画分を含むヒト又は動物の血漿から成る群から選択される、請求項1〜5のいずれか一項に記載の方法。
- 前記固定相がクロマトグラフィーカラムである、請求項1〜6のいずれか一項に記載の方法。
- 前記サンプルが、イオン交換クロマトグラフィーカラム、アフィニティークロマトグラフィー、ミックスモードクロマトグラフィー、高速タンパク質液体クロマトグラフィー、及び吸着流動床(EBA)クロマトグラフィーカラムから選択される固定相にロードされる、請求項7に記載の方法。
- 前記カプリル酸溶液が、ウイルスを不活性化し、かつ前記標的タンパク質を変性させないpHを有する、請求項1〜8のいずれか一項に記載の方法。
- 前記カプリル酸溶液が、pH 6.1以下、例えばpH 2〜6のpH、例えば2<pH≦6、好ましくは3<pH≦6、より好ましくは4<pH≦6、例えば4.5<pH≦6、例えば4.6≦pH<6、例えば約pH 4.6、約pH 4.7、約pH 4.8、約pH 4.9、約pH 5.0、約pH 5.1、約pH 5.2、約pH 5.3、約pH 5.4、約pH 5.5、約pH 5.6、約pH 5.7、約pH 5.8、及び約pH 5.9、例えば4.9<pH<6のpHを有する、請求項1〜9のいずれか一項に記載の方法。
- 前記カプリル酸溶液が、遊離カプリル酸に関して測定される濃度が1〜20 mM、例えば2〜20 mM又は1〜10 mM、より好ましくは2〜10 mM、例えば2〜8 mM、例えば2〜6 mMの濃度のカプリル酸緩衝液である、請求項1〜10のいずれか一項に記載の方法。
- 前記サンプルが、エンベロープウイルス、非エンベロープウイルス、又は非エンベロープウイルスとエンベロープウイルスの両方を含む、請求項1〜11のいずれか一項に記載の方法。
- 自動化されているか、又は自動化されたタンパク質精製プロセスの一部である、請求項1〜12のいずれか一項に記載の方法。
- さらにマイコプラズマを不活性化する、請求項1〜13のいずれか一項に記載の方法。
- 凝固因子、抗体、又はそのFabから選択されるタンパク質の精製のための方法であって、
i. アフィニティークロマトグラフィー用の固定相に1つ以上の前記タンパク質を含むサンプルをロードする工程;
ii. 遊離カプリル酸に関して測定される濃度が2〜10 mM、例えば2〜8 mM、例えば2〜6 mMで、4.9<pH<6.2のpHのカプリル酸溶液に、固相を曝露し、ウイルスを不活性化し洗い流す工程;
iii. 標的タンパク質を溶出する工程
を含む、方法。
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CA2910065C (en) * | 2013-05-15 | 2023-09-19 | Medimmune Limited | Purification of recombinantly produced polypeptides |
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CN109311948B (zh) | 2016-05-11 | 2022-09-16 | 思拓凡生物工艺研发有限公司 | 清洁和/或消毒分离基质的方法 |
US10654887B2 (en) | 2016-05-11 | 2020-05-19 | Ge Healthcare Bio-Process R&D Ab | Separation matrix |
EP3455243B1 (en) | 2016-05-11 | 2021-03-24 | Cytiva BioProcess R&D AB | Separation matrix |
JP7106187B2 (ja) | 2016-05-11 | 2022-07-26 | サイティバ・バイオプロセス・アールアンドディ・アクチボラグ | 分離マトリックスを保存する方法 |
US10703774B2 (en) | 2016-09-30 | 2020-07-07 | Ge Healthcare Bioprocess R&D Ab | Separation method |
US10889615B2 (en) | 2016-05-11 | 2021-01-12 | Cytiva Bioprocess R&D Ab | Mutated immunoglobulin-binding polypeptides |
US10730908B2 (en) | 2016-05-11 | 2020-08-04 | Ge Healthcare Bioprocess R&D Ab | Separation method |
AU2016231646B2 (en) * | 2016-09-26 | 2021-04-08 | Instituto Grifols, S.A. | Method for the preparation of immunoglobulins |
CN109134648A (zh) * | 2018-09-14 | 2019-01-04 | 武汉伊莱瑞特生物科技股份有限公司 | 一种抗体纯化方法 |
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