JP7344858B2 - Fc含有ポリペプチドの安定化 - Google Patents
Fc含有ポリペプチドの安定化 Download PDFInfo
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- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
- C07K2319/30—Non-immunoglobulin-derived peptide or protein having an immunoglobulin constant or Fc region, or a fragment thereof, attached thereto
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Description
本出願は、2013年7月31日に出願された米国仮特許出願第61/860,800号の利益を主張するものであり、同出願を参照により本明細書に援用する。
本出願は、電子的に提出したASCII形式の配列表を含むものであり、同配列表の全体を参照により本明細書に援用する。2014年7月28日に作成された当該ASCII形式の複製の名称は、A-1852-WO-PCT_SL.txtであり、大きさは122,988バイトである。
DKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK(配列番号9)である。
S239D/I332E
S239D/A330S/I332E
S239D/A330L/I332E
S298A/D333A/K334A
P247I/A339D
P247I/A339Q
D280H/K290S
D280H/K290S/S298D
D280H/K290S/S298V
F243L/R292P/Y300L
F243L/R292P/Y300L/P396L
F243L/R292P/Y300L/V305I/P396L
G236A/S239D/I332E
K326A/E333A
K326W/E333S
K290E/S298G/T299A
K290N/S298G/T299A
K290E/S298G/T299A/K326E
K290N/S298G/T299A/K326E
K334V
L235S+S239D+K334V
Q311M+K334V
S239D+K334V
F243V+K334V
E294L+K334V
S298T+K334V
E233L+Q311M+K334V
L234I+Q311M+K334V
S298T+K334V
A330M+K334V
A330F+K334V
Q311M+A330M+K334V
Q311M+A330F+K334V
S298T+A330M+K334V
S298T+A330F+K334V
S239D+A330M+K334V
S239D+S298T+K334V
L234Y+K290Y+Y296W
L234Y+F243V+Y296W
L234Y+E294L+Y296W
L234Y+Y296W
K290Y+Y296W
N297AまたはN297Q(IgG1)
L234A/L235A(IgG1)
V234A/G237A(IgG2)
L235A/G237A/E318A(IgG4)
H268Q/V309L/A330S/A331S(IgG2)
C220S/C226S/C229S/P238S(IgG1)
C226S/C229S/E233P/L234V/L235A(IgG1)
L234F/L235E/P331S(IgG1)
S267E/L328F(IgG1)
Fc融合タンパク質ではない。
抗体重鎖及びFc融合タンパク質をコードする核酸が本発明に包含される。本発明の態様は、本明細書に記載のアミノ酸配列をコードするポリヌクレオチド変異体(例えば、縮重によるもの)を含む。
本発明のポリペプチドは、安全性の向上及び凝集の低減という特徴により、医薬組成物への配合に特に有用である。当該組成物は、生理学的に許容可能な担体、賦形剤または希釈剤などの1つまたは複数の追加成分を含む。任意で、当該組成物は、例えば以下に示すように、1つまたは複数の生理学的に活性な剤を更に含む。種々の特定の実施形態において、当該組成物は、本発明の1つまたは複数の抗体及び/またはFc融合タンパク質に加えて、1、2、3、4、5または6つの生理学的に活性な剤を含む。
本明細書中に別途の記載がない限り、本発明に関して用いられる科学技術用語は、当該技術分野の当業者によって一般的に解される意味を有するものとする。更に、文脈により別途の要求がない限り、単数形の用語は複数を包含し、複数形の用語は単数を包含するものとする。概して、本明細書にて記載する細胞及び組織培養、分子生物学、免疫学、微生物学、遺伝子学並びにタンパク質及び核酸化学及びハイブリダイゼーションに関連して使用する専門用語及びこれらの技術は、当該技術分野においてよく知られ、一般的に使用されるものである。本発明の方法及び技術は、概して、特に指定のない限り、当該技術分野においてよく知られた従来の方法に従って、また本明細書全体を通して引用し論じる種々の一般的かつ具体的な参考文献に記載されている通りに実施される。例えば、Sambrook et al.Molecular Cloning:A Laboratory Manual,2d ed.,Cold Spring Harbor Laboratory Press,Cold Spring Harbor,N.Y.(1989)及びAusubel et al.,Current Protocols in Molecular Biology,Greene Publishing Associates(1992)及びHarlow and Lane Antibodies:A Laboratory Manual Cold Spring Harbor Laboratory Press,Cold Spring Harbor,N.Y.(1990)を参照されたい。これらの文献は、参照により本明細書に援用する。酵素反応及び精製技術は、製造業者の説明書に従って、当該技術分野において一般に実施される通りにまたは本明細書の記載通りに実施される。本明細書にて記載する分析化学、有機合成化学及び医薬製薬化学に関連して使用する用語並びにこれらの実験手順及び技術は、当該技術分野においてよく知られ、一般的に使用されるものである。化学合成、化学分析、薬剤調製、製剤化及び送達並びに患者の処置には標準的な技術を用いることができる。
システインクランプ構築物の作製
CHO-K1細胞株に適した無血清懸濁液中にて、電荷対(delHinge)システインクランプFc配列を有するペプチド融合体を安定的に発現させた。Fc融合分子をピューロマイシン耐性を有する安定発現ベクターにクローニングし、一方、Fc鎖はハイグロマイシン含有発現ベクターにクローニングした(Selexis,Inc.)。リポフェクタミンLTXを1:1の割合で用いてプラスミドをトランスフェクトし、トランスフェクションから2日後にピューロマイシン10μg/mL及びハイグロマイシン600μg/mLを含む成長培地で細胞を選択した。選択中、培地を週2回交換した。細胞が約90%の生存率に達したとき、流加連続生産にスケールアップした。産生培地中に細胞を1e6/mLで播種し、3日、6日及び8日目に流加した。細胞により産生させた馴化培地(CM)を10日目に回収し、清澄した。エンドポイント生存率は、概して90%を上回った。
システインクランプ構築物の分析
ジスルフィド結合形成
上記の通り、ヒンジ領域を欠き、かつL351C変異を有するFc融合タンパク質を発現させ、精製した。
ヒンジ領域を欠く6つのFc融合タンパク質構築物(A~F)を比較した。
A.ヒンジを欠き、かつ治療用ペプチドとFcの間にリンカーを有さないFc融合体。
B.Aと同様であるが、治療用ペプチド内に変異を有するFc融合体。
C.Bと同様であるが、グリコシル化していないリンカーがFcと治療用ペプチドとを連結しているFc融合体。
D.Cと同様であるが、異なるリンカーを有するFc融合体。
E.Aと同様であるが、一方のFc鎖がY349C置換を含み、他方がS354C置換を含むFc融合体。
F.Bと同様であるが、一方のFc鎖がY349C置換を含み、他方がS354C置換を含むFc融合体。
Claims (13)
- 2つのポリペプチドを含む二量体であって、各ポリペプチドは抗体Fc領域を含み、前記Fc領域はヒンジ領域を欠き、KabatのEU番号付けスキームに基づきT394C置換を含み、前記2つのポリペプチドにおける前記T394C残基の間でジスルフィド結合が形成される、二量体。
- Fcが、KabatのEU番号付けスキームに基づき、V259、A287、R292、V302、L306、V323又はI332における1つ又は複数のアミノ酸置換を含むCH2領域を含む、請求項1に記載の二量体。
- FcのC末端の1つ又は複数のアミノ酸が欠失している、請求項1に記載の二量体。
- FcのC末端の3つ、2つ又は1つのアミノ酸が欠失している、請求項3に記載の二量体。
- FcのC末端の末端アミノ酸が欠失している、請求項3に記載の二量体。
- 各ポリペプチドが抗体重鎖を含む、請求項1に記載の二量体。
- 各ポリペプチドがFc融合タンパク質を含む、請求項1に記載の二量体。
- ホモ二量体である、請求項1~5のいずれか一項に記載の二量体。
- ヘテロ二量体である、請求項1~5のいずれか一項に記載の二量体。
- 請求項8のホモ二量体を含む抗体。
- 請求項9のヘテロ二量体を含む抗体。
- 請求項8のホモ二量体を含むFc融合タンパク質。
- 請求項9のヘテロ二量体を含むFc融合タンパク質。
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US201361860800P | 2013-07-31 | 2013-07-31 | |
US61/860,800 | 2013-07-31 | ||
JP2016531860A JP2016526909A (ja) | 2013-07-31 | 2014-07-30 | Fc含有ポリペプチドの安定化 |
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2014
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JP2001523971A (ja) | 1997-05-02 | 2001-11-27 | ジェネンテック,インコーポレーテッド | ヘテロマルチマー及び共通成分を有する多重特異性抗体の製造方法 |
JP2008511337A (ja) | 2004-09-02 | 2008-04-17 | ジェネンテック・インコーポレーテッド | ヘテロ多量体分子 |
JP2013511281A (ja) | 2009-11-23 | 2013-04-04 | アムジェン インコーポレイテッド | 単量体抗体Fc |
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CA2919076C (en) | 2024-01-30 |
WO2015017548A3 (en) | 2015-11-05 |
HK1224203A1 (zh) | 2017-08-18 |
WO2015017548A2 (en) | 2015-02-05 |
CL2016000232A1 (es) | 2016-09-02 |
MX2022008013A (es) | 2022-07-27 |
EP3027647A4 (en) | 2017-01-04 |
EP3027647A2 (en) | 2016-06-08 |
KR20230141929A (ko) | 2023-10-10 |
SG11201600734YA (en) | 2016-02-26 |
JP2021019598A (ja) | 2021-02-18 |
JP2016526909A (ja) | 2016-09-08 |
AU2020200329A1 (en) | 2020-02-06 |
CA2919076A1 (en) | 2015-02-05 |
AU2022201204A1 (en) | 2022-03-17 |
US20190192628A1 (en) | 2019-06-27 |
BR112016002219A2 (pt) | 2017-09-12 |
KR20160034404A (ko) | 2016-03-29 |
IL243690A0 (en) | 2016-04-21 |
IL243690B (en) | 2022-09-01 |
US20160193295A1 (en) | 2016-07-07 |
EA035319B1 (ru) | 2020-05-27 |
MX2016001165A (es) | 2016-06-29 |
EA201690299A1 (ru) | 2016-11-30 |
CN105658664A (zh) | 2016-06-08 |
AU2014296215A1 (en) | 2016-02-11 |
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