JP5255453B2 - Par−2に結合する抗体 - Google Patents
Par−2に結合する抗体 Download PDFInfo
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- JP5255453B2 JP5255453B2 JP2008554427A JP2008554427A JP5255453B2 JP 5255453 B2 JP5255453 B2 JP 5255453B2 JP 2008554427 A JP2008554427 A JP 2008554427A JP 2008554427 A JP2008554427 A JP 2008554427A JP 5255453 B2 JP5255453 B2 JP 5255453B2
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Description
本出願は、35U.S.C.119(e)に基づいて、米国仮出願第60/772,456号、2006年2月10日出願の優先権を請求し;該出願はすべて、本明細書に援用される。
本出願は、抗PAR−2抗体に関する組成物および方法を提供する。
発明の背景
プロテイナーゼ活性化受容体(PAR)ファミリーは、7回膜貫通Gタンパク質共役型受容体スーパーファミリーの一部である。現在、4つの既知のPARがあり、このうち3つ(PAR−1、−3、および−4)はトロンビンによって活性化され;4番目(PAR−2)はトリプシンまたはマスト細胞トリプターゼによって活性化されるが、トロンビンによっては活性化されない。PARは、多様な組織に広く分布し、そして血小板凝集、炎症および心臓血管機能、消化機能または呼吸機能などの、いくつかの生理学的現象または病態生理学的現象に関与する。
1つの側面において、本発明は、プロテイナーゼ活性化受容体−2(PAR−2)に結合する、単離抗原結合性タンパク質を提供する。別の態様において、単離抗原結合性タンパク質は、ヒトPAR−2に結合した際、タンパク質分解的切断、および/または前記ヒトPAR−2を通じた、それに続くシグナル伝達を阻害する。別の態様において、単離抗原結合性タンパク質は、約80%より多く、PAR−2のタンパク質分解的活性化を阻害する。別の態様において、単離抗原結合性タンパク質は、全長PAR−2に結合し、そしてより少ない度合いで、切断された(cleaved)PAR−2に結合する。
別の側面において、本発明は、PAR−2活性を減少させる必要がある被験体において、PAR−2活性を減少させる方法であって、前記薬学的組成物を前記被験体に投与する工程を含む、前記方法を提供する。
本発明は、プロテイナーゼ活性化受容体2(「PAR−2」)に結合する分子であって、PAR−2をアゴナイズするかまたはアンタゴナイズする分子、例えば抗PAR−2抗体、抗体断片、および抗体誘導体、例えばアンタゴニスト性抗PAR−2抗体、抗体断片、または抗体誘導体を含む分子に関連する、組成物、キット、および方法を提供する。やはり提供されるのは、PAR−2に結合するポリペプチドのすべてまたは一部をコードするヌクレオチドの配列を含む、核酸、ならびにその誘導体および断片、例えば抗PAR−2抗体、抗体断片、または抗体誘導体のすべてまたは一部をコードする核酸、こうした核酸を含むプラスミドおよびベクター、ならびにこうした核酸および/またはベクターおよびプラスミドを含む細胞または細胞株である。提供される方法には、例えば、PAR−2に結合する分子、例えば抗PAR−2抗体を作製するか、同定するか、または単離する方法、分子がPAR−2に結合するかどうかを決定する方法、分子がPAR−2をアゴナイズするかまたはアンタゴナイズするかどうかを決定する方法、PAR−2に結合する分子を含む、薬学的組成物などの組成物を作製する方法、ならびにPAR−2に結合する分子を被験体に投与するための方法、例えばPAR−2によって仲介される状態を治療するための方法、およびPAR−2の生物学的活性をin vivoまたはin vitroでアゴナイズするかまたはアンタゴナイズするための方法が含まれる。
用語「単離分子」は(分子が、例えばポリペプチド、ポリヌクレオチド、または抗体である場合)、その起源または派生供給源によって、(1)天然状態で該分子に付随する、天然に関連する構成要素と関連していないか、(2)同じ種由来の他の分子を実質的に含まないか、(3)異なる種由来の細胞によって発現されるか、あるいは(4)天然には存在しない分子である。したがって、化学的に合成されたか、または天然に由来する細胞とは異なる細胞系において合成される分子は、天然に関連する構成要素から「単離されている」であろう。分子はまた、当該技術分野に周知の精製技術を用いた単離によって、天然に関連する構成要素を実質的に含まないようにされうる。当該技術分野に周知のいくつかの手段によって、分子純度または均一性をアッセイしてもよい。例えば、当該技術分野に周知の技術を用いて、ポリアクリルアミドゲル電気泳動を用い、そしてゲルを染色してポリペプチドを視覚化して、ポリペプチド試料の純度をアッセイしてもよい。特定の目的のため、HPLCまたは当該技術分野に周知の精製のための他の手段を用いることによって、より高い解像度を提供してもよい。
「抗原結合性ドメイン」、「抗原結合性領域」、または「抗原結合性部位」は、抗原と相互作用して、そして抗原に対する抗原結合性タンパク質の特異性および親和性に寄与するアミノ酸残基(または他の部分)を含有する抗原結合性タンパク質の部分である。抗原に特異的に結合する抗体に関しては、CDRドメインの少なくとも1つの少なくとも部分を含むであろう。
先に論じたように、PAR−2は、7回膜貫通Gタンパク質共役型受容体スーパーファミリーのメンバーであり;係留されたリガンドを形成するN末端のタンパク質分解的切断によって活性化が開始される。ヒトPAR−2のヌクレオチドおよびアミノ酸配列を配列番号1および2に示し;マウスPAR−2のアミノ酸配列を配列番号3に示し、そしてラットPAR−2のアミノ酸配列を配列番号4に示す。タンパク質分解的切断は、この受容体の活性化型を生じ、この型は、本明細書において、交換可能に「切断」または「切り取り」PAR−2と称される。
抗原結合性タンパク質
1つの側面において、本発明は、PAR−2、例えばヒトPAR−2に結合する、抗原結合性タンパク質(例えば抗体、抗体断片、抗体誘導体、抗体突然変異タンパク質、および抗体変異体)を提供する。
あるいは、オリゴマーは、ペプチド・リンカー(スペーサー・ペプチド)を含むかまたは含まない、多数の抗原結合性タンパク質を含む融合タンパク質である。適切なペプチド・リンカーの中には、米国特許第4,751,180号および第4,935,233号に記載されるものがある。
1つの側面において、本発明は、単離核酸分子を提供する。該核酸は、例えば、抗原結合性タンパク質のすべてまたは一部、例えば本発明の抗体の一方または両方の鎖、あるいはその断片、誘導体、突然変異タンパク質、または変異体をコードするポリヌクレオチド、ポリペプチドをコードするポリヌクレオチドを同定するか、分析するか、突然変異させるかまたは増幅するための、ハイブリダイゼーション・プローブ、PCRプライマーまたは配列決定プライマーとして使用するのに十分なポリヌクレオチド、ポリヌクレオチドの発現を阻害するためのアンチセンス核酸、および前述のものの相補配列を含む。核酸はいかなる長さであってもよい。これらは、例えば、長さ5、10、15、20、25、30、35、40、45、50、75、100、125、150、175、200、250、300、350、400、450、500、750、1,000、1,500、3,000、5,000またはそれより長いヌクレオチドであってもよく、そして/または1以上のさらなる配列、例えば制御配列を含んでもよく、そして/またはより大きい核酸、例えばベクターの一部であってもよい。核酸は、一本鎖または二本鎖であってもよく、そしてRNAおよび/またはDNAヌクレオチド、ならびに人工的変異体(例えばペプチド核酸)を含んでもよい。
1つの側面において、本発明は被験体を治療する方法を提供する。該方法は、例えば、被験体に対して、一般的に健康によい効果を有することも可能であり、例えば被験体の予期される寿命を増加させることも可能である。あるいは、該方法は、例えば、疾患、障害、状態、または疾病(「状態」)を治療するか、防止するか、治癒させるか、軽減するか、または改善する(「治療する」)ことも可能である。本発明にしたがって治療すべき状態の中には、PAR−2の不適切な発現または活性によって特徴付けられる状態がある。いくつかのこうした状態においては、発現または活性レベルがあまりにも高く、そして治療は、本明細書に記載するようなPAR−2アンタゴニストを投与することを含む。
本明細書に提供する特定の方法は、被験体にPAR−2結合性抗原結合性タンパク質を投与し、それによって、特定の状態において役割を果たす、PAR−2が誘導する生物学的応答を減少させることを含む。特定の態様において、本発明の方法は、例えば、被験体への投与を介して、またはex vivo法において、PAR−2結合性抗原結合性タンパク質と、内因性PAR−2を接触させることを伴う。
別の側面において、本発明は、PAR−2阻害性抗原結合性タンパク質および1以上の他の治療で、被験体を治療する方法を提供する。1つの態様において、こうした併用療法は、例えば腫瘍の多数の部位または分子ターゲットを攻撃することによって、相乗効果または付加的効果を達成する。本発明と関連して使用可能な併用療法の種類には、単一の疾患関連経路、ターゲット細胞における多数の経路、およびターゲット組織内の多数の細胞種における多数のノードを阻害するかまたは活性化する(適切なように)ことが含まれる。
実施例1:モノクローナル抗体の調製
慣用的技術、例えば、本明細書に援用される米国特許5,599,905に記載される技術によって、モノクローナル抗体を生成する際、PAR−2ポリペプチドを免疫原として使用してもよい。さらなる技術、例えばRIMMS(反復免疫多重部位)戦略(Kilpatrickら, Hybridoma 16(4):381−9; 1997)が当該技術分野に知られる。多様な型のポリペプチド、例えば全長タンパク質、その断片、Fc融合体などの融合タンパク質、細胞表面上に組換えタンパク質を発現している細胞などを、免疫原として使用してもよいことが認識される。
ハイブリドーマ細胞を、ある期間、そして約35mlのハイブリドーマ上清液の試料を得る条件下で培養する。各試料に、12mlの4xプロテインA結合緩衝液(1.6Mクエン酸、100mM Tris、pH9.15)およびMabSelectTM培地(GE Healthcare、ニュージャージー州ピスカタウェイ)の67%スラリー約300μlを添加する。生じたスラリーを4℃で一晩、穏やかに回転させる。
全長N末端PAR−2/Fcポリペプチド(配列番号5)をCHO細胞で発現させる。血清不含培地中で培養したCHO発現細胞からの発現上清は、活性化Arg−Ser結合でPAR−2/Fcを切断する、CHO細胞トリプシン様セリンプロテアーゼを含有し、PAR−2/Fcポリペプチドの「切り取り」型を生じる。10%ウシ胎児血清(CHO細胞トリプシン様セリンプロテアーゼの濃度よりはるかに過剰な濃度の、正常レベルの血漿プロテイナーゼ阻害剤を含有する)中で培養したCHO発現細胞は、培養上清中、全長N末端PAR−2/Fcを発現する。実質的に先に記載するように(実施例2を参照されたい)、MabSelectTM樹脂を用いて、切り取りおよび全長タンパク質の両方を精製する。アミノ末端配列分析(エドマン分解)、サイズ排除クロマトグラフィー、吸光度スペクトルスキャン、および質量分析によって、生じた精製Fc構築物を分析する。
異なるアッセイ形式において、いくつかのPAR−2抗体を試験した;表2は結果を要約する。
いくつかのPAR−2抗体をサブクローニングし、そしてトリプシン誘導性PAR−2活性化を阻害する能力に関して試験した;表2は、結果を要約する。
Claims (11)
- プロテイナーゼ活性化受容体−2(PAR−2)に結合し、そしてそのタンパク質分解的活性化をアンタゴナイズする、単離抗原結合性タンパク質であって、
全長PAR−2(配列番号2で示される)に結合し、そしてより少ない度合いで、切断されたPAR−2(R36とS37の間で切断された、配列番号2で示される)に結合する、前記単離抗原結合性タンパク質。 - 非ヒト霊長類、カニクイザル(cynomolgous monkey)、チンパンジー(chimpanzee)、非霊長類哺乳動物、げっ歯類、マウス、ラット、ハムスター(hamster)、モルモット(guinea pig)、ネコ、またはイヌのPAR−2に特異的に結合する、請求項1の単離抗原結合性タンパク質。
- a) ヒト化抗体;
b) キメラ抗体;
c) 抗原結合性抗体断片;
d) Fab断片;又は
e) F(ab’)2断片;
を含む、請求項1または2の単離抗原結合性タンパク質。 - HCT−116細胞を用いた蛍光分析画像化プレート読取り装置(FLIPR)アッセイにおいて、60nM又はそれ未満であって、そして2nM又はそれより高いIC50で、PAR−2のタンパク質分解的活性化をアンタゴナイズする、請求項1−3のいずれか1項の単離抗原結合性タンパク質。
- 前記細胞がハイブリドーマであり、そして、抗原結合性タンパク質がモノクローナル抗体である、請求項1−2及び4のいずれか1項の抗原結合性タンパク質を分泌する単離細胞。
- PAR−2に結合する抗原結合性タンパク質を作製する方法であって、抗原結合性タンパク質を発現することを可能にする条件下で、請求項5の単離細胞をインキュベーションする工程を含む、前記方法。
- 請求項1ないし4のいずれか1項の抗原結合性タンパク質、並びに、生理学的に許容しうるキャリアー、賦形剤または希釈剤を含む、薬学的組成物。
- 被験体における状態を治療するための請求項7に記載の薬学的組成物であって、該状態が、該被験体において、PAR−2活性を減少させることによって治療可能である、前記薬学的組成物。
- 被験体がヒトである、請求項8の薬学的組成物。
- 前記状態が、皮膚、関節、胃腸系および/または気道の炎症状態からなる群より選択される、請求項9の薬学的組成物。
- 被験体におけるPAR−2活性の減少が、被験体におけるPAR−2シグナル伝達の減少によるものである、請求項8に記載の薬学的組成物。
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PCT/US2007/003796 WO2007092640A2 (en) | 2006-02-10 | 2007-02-09 | Antibodies that bind par-2 |
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CL2008001887A1 (es) * | 2007-06-29 | 2008-10-03 | Amgen Inc | Proteinas de union a antigeno que se unen al receptor activado por proteasas 2 (par-2); acido nucleico que las codifica; vector y celula huesped; metodo de produccion; y composicion que las comprende. |
EP2215474A4 (en) * | 2007-07-16 | 2012-07-18 | Avaxia Biologics Inc | ANTIBODY THERAPY FOR MODULATING THE FUNCTION OF DARM RECEPTORS |
EP2725035A1 (en) | 2007-10-02 | 2014-04-30 | Avaxia Biologics, Inc. | Antibody therapy for use in the digestive tract |
WO2010017086A1 (en) * | 2008-08-05 | 2010-02-11 | Boehringer Ingelheim International Gmbh | Effectors of par-2 activation and their use in the modulation of inflammation |
WO2010132954A1 (en) * | 2009-05-21 | 2010-11-25 | Oral Health Australia Pty Ltd | Method of treating periodontal disease by administering antagonists of par-2 |
JO3246B1 (ar) * | 2009-09-09 | 2018-03-08 | Regeneron Pharma | اجسام مضادة بشرية ذات ألفة تفاعل عالية مع مستقبل 2 المفعل بالبروتين البشري |
MY162557A (en) | 2010-02-26 | 2017-06-15 | Oral Health Australia Pty Ltd | Treatment or prevention of infection |
WO2012077105A2 (en) * | 2010-12-07 | 2012-06-14 | Bio-Marcare Technologies Ltd. | Biomarkers for detecting a cancerous state in a subject |
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US9708375B2 (en) | 2013-03-15 | 2017-07-18 | Amgen Inc. | Inhibitory polypeptides specific to WNT inhibitors |
JP6668241B2 (ja) | 2013-09-05 | 2020-03-18 | アムジエン・インコーポレーテツド | 予測可能で、一貫性のある、且つ再現可能な糖型特性を示すFc含有分子 |
AU2014326596B2 (en) | 2013-09-25 | 2018-12-13 | Vertex Pharmaceuticals Incorporated | Imidazopyridazines useful as inhibitors of the PAR-2 signaling pathway |
EP3467501B1 (en) | 2014-05-16 | 2020-11-04 | Amgen Inc. | Assay for detecting th1 and th2 cell populations |
EP3596225A1 (en) | 2017-03-14 | 2020-01-22 | Amgen Inc. | Control of total afucosylated glycoforms of antibodies produced in cell culture |
CA3088557C (en) * | 2018-02-09 | 2024-02-27 | Genentech, Inc. | Therapeutic and diagnostic methods for mast cell-mediated inflammatory diseases |
CN111954719A (zh) | 2018-03-26 | 2020-11-17 | 美国安进公司 | 细胞培养物中产生的抗体的总去岩藻糖基化糖型 |
WO2020201572A1 (en) | 2019-04-05 | 2020-10-08 | Université De Bretagne Occidentale | Protease-activated receptor-2 inhibitors for the treatment of sensory neuropathy induced by a marine neurotoxic poisoning |
JP2022549329A (ja) | 2019-09-26 | 2022-11-24 | アムジェン インコーポレイテッド | 抗体組成物を製造する方法 |
EP4162257A1 (en) | 2020-06-04 | 2023-04-12 | Amgen Inc. | Assessment of cleaning procedures of a biotherapeutic manufacturing process |
KR20230048439A (ko) | 2020-08-18 | 2023-04-11 | 세파론 엘엘씨 | 항-par-2 항체 및 이의 사용 방법 |
CN112229996A (zh) * | 2020-08-25 | 2021-01-15 | 深圳市第二人民医院(深圳市转化医学研究院) | 蛋白酶激活受体2作为宫颈癌转移检测标志物的应用 |
AU2021360897A1 (en) | 2020-10-15 | 2023-05-25 | Amgen Inc. | Relative unpaired glycans in antibody production methods |
WO2022261021A1 (en) | 2021-06-07 | 2022-12-15 | Amgen Inc. | Using fucosidase to control afucosylation level of glycosylated proteins |
MX2024003852A (es) | 2021-10-05 | 2024-05-24 | Amgen Inc | Unión al receptor fc-gamma y contenido de glucanos. |
GB202204159D0 (en) * | 2022-03-24 | 2022-05-11 | Heptares Therapeutics Ltd | Antibodies |
WO2023215725A1 (en) | 2022-05-02 | 2023-11-09 | Fred Hutchinson Cancer Center | Compositions and methods for cellular immunotherapy |
WO2024220916A1 (en) | 2023-04-20 | 2024-10-24 | Amgen Inc. | Methods of determining relative unpaired glycan content |
WO2025038600A1 (en) | 2023-08-14 | 2025-02-20 | Amgen Inc. | Methods for reducing yellow color |
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US5874400A (en) | 1993-07-26 | 1999-02-23 | Cor Therapeutics | Recombinant C140 receptor, its agonists and antagonists, and nucleic acids encoding the receptor |
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EP1604207A2 (en) | 2003-03-11 | 2005-12-14 | Bayer HealthCare AG | Diagnostics and therapeutics for diseases associated with g-protein coupled proteinase activated receptor 2 (par2) |
AR070911A1 (es) | 2008-03-19 | 2010-05-12 | Regeneron Pharma | Uso de antagonistas del receptor par2 activado con proteasa |
WO2010017086A1 (en) | 2008-08-05 | 2010-02-11 | Boehringer Ingelheim International Gmbh | Effectors of par-2 activation and their use in the modulation of inflammation |
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US7888482B2 (en) | 2011-02-15 |
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ES2476892T3 (es) | 2014-07-15 |
US20130189281A1 (en) | 2013-07-25 |
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US8287872B2 (en) | 2012-10-16 |
US20070237759A1 (en) | 2007-10-11 |
EP1981913A2 (en) | 2008-10-22 |
WO2007092640A3 (en) | 2008-01-10 |
JP2009525758A (ja) | 2009-07-16 |
AU2007212195A1 (en) | 2007-08-16 |
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