JP2014500289A - アイソフォーム濃縮抗体調製物及びこれを得る方法 - Google Patents
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Abstract
Description
(a)抗体の様々なアイソフォームを含む緩衝液をカチオン交換クロマトグラフィー材に添加する工程と、
(b)第1導電率を有する第1溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームとカチオン交換クロマトグラフィー材との結合が維持される工程と、
(c)第2導電率を有する第2溶液をカチオン交換クロマトグラフィー材に添加し抗体調製物を得る工程
を有し、第2溶液の導電率が第1溶液の導電率を少なくとも1%ただし50%以下で上回る。
(a)抗体をコードする核酸を有する哺乳動物細胞を培養し、抗体を細胞又は培地から回収する工程と、
(b)少なくとも1つのクロマトグラフィーの工程により抗体を精製する工程を有し、この少なくとも1つのクロマトグラフィーの工程が、
(i)カチオン交換クロマトグラフィー材に抗体の様々なアイソフォームを含む緩衝液を添加する工程と、
(ii)第1導電率を有する第1溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームとカチオン交換クロマトグラフィー材との結合が維持される工程と、
(iii)第2導電率を有する第2溶液をカチオン交換クロマトグラフィー材に添加し抗体調製物を生産する工程を有し、
第2溶液の導電率が第1溶液の導電率を少なくとも1%ただし10%以下で上回る。
(CSF1)受容体、c-kitの受容体(KIT又はSCFR)、インスリン受容体関連(IRR)受容体、CD19、CD20、HLA−DR、CD33、CD52、G250、GD3、PSMA、CD56、CEA、ルイスY抗原又はIL-6受容体に対する。
[表]
(1)疎水性:ノルロイシン、Met、Ala、Val、Leu、Ile;
(2)中性親水性:Cys、Ser、Thr、Asn、Gln;
(3)酸性:Asp、Glu;
(4)塩基性:His、Lys、Arg;
(5)鎖の方向に影響を及ぼす残基:Gly、Pro;
(6)芳香性:Trp、Tyr、Phe。
(a)抗体の様々なアイソフォームを含む緩衝液をカチオン交換クロマトグラフィー材に添加する工程と、
(b)第1導電率を有する第1溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームとカチオン交換クロマトグラフィー材との結合が維持される工程と、
(c)第2導電率を有する第2溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームが濃縮された抗体調製物を得る工程
を有し、第2溶液の導電率が第1溶液の導電率を50%以下で上回る。
(a)抗体の様々なアイソフォームを含む緩衝液をカチオン交換クロマトグラフィー材に添加する工程と、
(b)第1導電率を有する第1溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームとカチオン交換クロマトグラフィー材との結合が維持される工程と、
(c)第2導電率を有する第2溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームが濃縮された抗体調製物を得る工程
を有し、第2溶液の導電率が第1溶液の導電率を10%以下で上回る。
(a)抗体をコードする核酸を有する哺乳動物細胞を培養し、抗体を細胞又は培地から回収する工程と、
(b)少なくとも1つのクロマトグラフィーの工程により抗体を精製する工程を有し、この少なくとも1つのクロマトグラフィーの工程が、
(i)カチオン交換クロマトグラフィー材に抗体の様々なアイソフォームを含む緩衝液を添加する工程と、
(ii)第1導電率を有する第1溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームとカチオン交換クロマトグラフィー材との結合が維持される工程と、
(iii)第2導電率を有する第2溶液をカチオン交換クロマトグラフィー材に添加して抗体調製物を生産する工程を有し、
これにより第2溶液の導電率が第1溶液の導電率を10%以下で上回る。
ここで報告される、方法で使用されうる例示的免疫グロブリンは、国際公開第92/022653号、国際公開第99/057134号、国際公開第97/04801号、米国特許第5,677,171号及び米国特許第5,821,337号(参照により本明細書に組み込まれる)に報告されている抗HER2抗体である。
分析的分子ふるいクロマトグラフィー:
樹脂:TSK 3000(Tosohaas)
カラム:300×7.8mm
流量:0.5ml/min
緩衝液:250mM塩化カリウムを含む200mMリン酸カリウム、pH7.0に調節
波長:220nm
分析的IE−HPLC
樹脂:Dionex ProPacTM WCX−10 分析グレード
カラム:4×250mm
流量:0.8ml/min
バッファーA:10mMリン酸ナトリウム、pH7.5に調節
バッファーB:10mMリン酸ナトリウム、pH7.5に調節及び0.1M塩化ナトリウムを添加
開始条件:85vol%バッファーAと15vol%バッファーB
グラジエント:55vol%バッファーBまで9カラムボリューム
検出波長:214nm
試料の量:50μg
60vol%溶出バッファーまでの組合せグラジエント溶出、SP−セファロース上でのクロマトグラフィー
クロマトグラフィー条件:
樹脂:ハイスクリーンSP−セファロース
流量:1.2ml/min
平衡:20mMクエン酸ナトリウム、pH6.2に調節
ローディング:1gタンパク質/lクロマトグラフィー材
洗浄:20mMクエン酸ナトリウム、pH6.2に調節
溶出:20mMクエン酸ナトリウム、pH6.2に調節及び100mM塩化ナトリウムを添加
溶出法:
ステップと直線グラジエントの組合せ
20%溶出バッファーまでステップ、その後は60%溶出バッファーまで直線グラジエント
24vol%溶出バッファーまでのステップグラジエント溶出、SP−セファロース上のクロマトグラフィー
クロマトグラフィー条件:
樹脂:ハイスクリーンSP−セファロース
流量:1.2ml/min
平衡:20mMクエン酸ナトリウム、pH6.2に調節
ローディング:1gタンパク質/lクロマトグラフィー材
洗浄:20mMクエン酸ナトリウム、pH6.2に調節
溶出:20mMクエン酸ナトリウム、pH6.2に調節及び100mM塩化ナトリウムを添加
溶出法:
シングルステップグラジエント
24%溶出バッファーまでステップ、20カラムボリュームで溶出
15vol%溶出バッファーまでのステップグラジエント溶出、SP−セファロース上のクロマトグラフィー
クロマトグラフィー条件:
樹脂:ハイスクリーン SP−セファロース
流量:1.2ml/min
平衡:20mMクエン酸ナトリウム、pH6.2に調節
ローディング:1gタンパク質/lクロマトグラフィー材
洗浄:20mMクエン酸ナトリウム、pH6.2に調節
溶出:20mMクエン酸ナトリウム、pH6.2に調節及び80mM塩化ナトリウムを添加
溶出法:
シングルステップグラジエント
15%溶出バッファーまでステップ、20カラムボリューム
100vol%溶出バッファーまでのステップグラジエント溶出、SP−セファロース上のクロマトグラフィー
クロマトグラフィー条件:
樹脂:ハイスクリーンSP−セファロース
流量:1.2ml/min
平衡:20mMクエン酸ナトリウム、pH6.2に調節
ローディング:1gタンパク質/lクロマトグラフィー材
洗浄:20mMクエン酸ナトリウム、pH6.2に調節
溶出:20mMクエン酸ナトリウム、pH6.2に調節及び5mM塩化ナトリウムを添加
溶出法:
シングルステップ
100%溶出バッファーまでシングルステップ、20カラムボリュームで溶出
100vol%溶出バッファーまでのpHグラジエント溶出、モノS強カチオン交換樹脂上のクロマトグラフィー
クロマトグラフィー条件:
樹脂:モノS
平衡:20mMクエン酸ナトリウム、pH6.2に調節
洗浄:20mMクエン酸ナトリウム、pH6.2に調節
溶出:50mMリン酸ナトリウム、pH7.5に調節
溶出法:
グラジエント溶出
0%から100%溶出バッファー
比較例−強カチオン交換樹脂(SP−セファロース)を用いての、モノクローナル抗HER-2抗体のクロマトグラフィーによる分離(国際公開第99/57134号)
強カチオン交換樹脂のSP−セファロース上でのカチオン交換クロマトグラフィーを用いたモノクローナル抗HER2抗体(ハーセプチン(登録商標))の精製を行った。標準的条件下、すなわち、例えば塩化ナトリウムを用いたステップ溶出では、抗体のモノマー形態と凝集形態の分離は得られなかった(図5)。
クロマトグラフィー条件:
樹脂:SP−セファロース
流量:160cm/h
平衡:25mM2-モルホリノエタンスルホン酸、50mM塩化ナトリウム、pH5.6に調節
ローディング:最高20gタンパク質/Lゲルマトリックス
洗浄:25mM2-モルホリノエタンスルホン酸、50mM塩化ナトリウム、pH5.6に調節
溶出:25mM2-モルホリノエタンスルホン酸、95mM塩化ナトリウム、pH5.6に調節
60vol%溶出バッファーまでのグラジエント溶出を用いるSourceTM15S上でのクロマトグラフィー
クロマトグラフィー条件:
樹脂:SourceTM15S
カラムボリューム:1.14l
流量:100cm/h
平衡:25mMトリス、10mM塩化ナトリウム、pH7.4に調節
ローディング:0.88gタンパク質/1クロマトグラフィー材
洗浄:25mMトリス、10mM塩化ナトリウム、pH7.4に調節
溶出:25mMトリス、70mM塩化ナトリウム、pH7.4に調節
溶出法:
グラジエント
33vol%溶出バッファーまで19カラムボリューム
50vol%溶出バッファーまで3カラムボリューム
60vol%溶出バッファーまで7カラムボリューム
Claims (16)
- 抗体調製物を生産する方法であって、
(a)抗体の様々なアイソフォームを含む緩衝液をカチオン交換クロマトグラフィー材に添加する工程と、
(b)第1導電率を有する第1溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームのカチオン交換クロマトグラフィー材への吸着が維持される工程と、
(c)第2導電率を有する第2溶液をカチオン交換クロマトグラフィー材に添加して抗体調製物を得る工程、を有し、
第2溶液の導電率が第1溶液の導電率を50%以下で上回る、方法。 - 抗体調製物を生産する方法であって、
(a)抗体をコードする核酸を含む哺乳動物細胞を培養し、抗体を細胞又は培地から回収する工程と、
(b)少なくとも1つのカラムクロマトグラフィーの工程により抗体を精製する工程、を有し、該少なくとも1つのクロマトグラフィーの工程が、
(i)カチオン交換クロマトグラフィー材に抗体の様々なアイソフォームを含む緩衝液を添加する工程と、
(ii)第1導電率を有する第1溶液をカチオン交換クロマトグラフィー材に添加し、抗体アイソフォームのカチオン交換クロマトグラフィー材との結合が維持される工程と、
(iii)第2導電率を有する第2溶液をカチオン交換クロマトグラフィー材に添加して抗体調製物を生産する工程、を有し、
第2溶液の導電率が第1溶液の導電率を50%以下で上回る、方法。 - 第2溶液の導電率が第1溶液の導電率を15%以下で上回ることを特徴とする、請求項1又は2のいずれか1項に記載の方法。
- 第2溶液の導電率が第1溶液の導電率を10%以下で上回ることを特徴とする、請求項3に記載の方法。
- カチオン交換クロマトグラフィー材が膨張性マトリックスを有することを特徴とする、請求項1〜4のいずれか1項に記載の方法。
- 膨張性マトリックスがアガロースであることを特徴とする、請求項5に記載の方法。
- カチオン交換クロマトグラフィー材が強カチオン交換クロマトグラフィー材であることを特徴とする、請求項1〜6のいずれか1項に記載の方法。
- 強カチオン交換クロマトグラフィー材がスルホプロピル-カチオン交換クロマトグラフィー材であることを特徴とする、請求項7に記載の方法。
- 第1溶液が第2溶液にシングルステップ又は直線グラジエントで変更されることを特徴とする、請求項1〜8のいずれか1項に記載の方法。
- シングルステップが100vol%の第1溶液から100vol%の第2溶液への変更であることを特徴とする、請求項9に記載の方法。
- 第1溶液が20mMクエン酸ナトリウム及び10mM塩化ナトリウム、又は25mMトリス及び10mM塩化ナトリウムを含むことを特徴とする、請求項1〜10のいずれか1項に記載の方法。
- 第2溶液が20mMクエン酸ナトリウム及び5mM塩化ナトリウム、又は25mMトリス及び70mM塩化ナトリウムを含むことを特徴とする、請求項1〜11のいずれか1項に記載の方法。
- 抗体が抗HER2抗体であることを特徴とする、請求項1〜12のいずれか1項に記載の方法。
- 抗HER2抗体が抗HER2抗体トラスツズマブ又は抗HER2抗体ペルツズマブであることを特徴とする、請求項13に記載の方法。
- 第1溶液の導電率が4mS/cmから5mS/cmであることを特徴とする、請求項1〜14のいずれか1項に記載の方法。
- 請求項1〜15のいずれか1項の方法により得られる抗HER2抗体。
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |