JP7553504B2 - 操作された抗体化合物およびこれらの抱合体 - Google Patents
操作された抗体化合物およびこれらの抱合体 Download PDFInfo
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- JP7553504B2 JP7553504B2 JP2022078343A JP2022078343A JP7553504B2 JP 7553504 B2 JP7553504 B2 JP 7553504B2 JP 2022078343 A JP2022078343 A JP 2022078343A JP 2022078343 A JP2022078343 A JP 2022078343A JP 7553504 B2 JP7553504 B2 JP 7553504B2
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Description
式I.R-P1―P2-P3-NH(CH2CH2O)nCH2CH2-Y
(式中、
Rは、HC(=O)-またはR1NHC(=O)NH-であり、
R1は、置換または非置換であってもよいC5~C10アリールであり、
P1は、MetまたはNleであり、
P2は、ペプチドまたはペプチド模倣体であり、
P3は、イプシロンアミノアシル化されたリジンであり、
nは、6~24の整数であり、
Yは、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドまたはビニルスルホンである)、
またはその塩。
式II.R-P1-P2-NH(CH2CH2O)nCH2CH2-P3-Y
(式中、
Rは、HC(=O)-またはR1NHC(=O)NH-であり、
R1は、置換または非置換であってもよいC5~C10アリールであり、
P1は、MetまたはNleであり、
P2は、ペプチドまたはペプチド模倣体であり、
P3は、イプシロンアミノアシル化されたリジンであり、
nは、6~24の整数であり、
Yは、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドまたはビニルスルホンである)、
またはその塩。
式III.R-Met-X1―X2―X3―X4-NH(CH2CH2O)nCH2CH2--X5-Y
(式中、
Rは、HC(=O)-またはR1NHC(=O)NH-であり、
R1は、フェニル、4-クロロフェニル、4-メトキシフェニル、p-トリル、m-トリル、アリール、置換アリール、または2-アリルであり、
X1は、Leu、Ile、Nle、ジエチルグリシン、またはジプロピルグリシンであり、
X2は、Phe、α-Me-Phe、DPhe、4-F-Phe、2-Nal、または1-Nalであり、
X3は、Glu、Leu、Nle、α-Me-Leu、DLeu、または非存在であり、
X4は、Glu、DGlu、γGlu、Gla、または非存在であり、
X5は、C2~C10ジアミノアルキルであり、かつ
Yは、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドまたはビニルスルホンである)、
またはその塩。
式IV.[R-P1-P2-NH(CH2CH2O)nCH2CH2-]2-Q-X-Y
(式中、
Rは、HC(=O)-またはR1NHC(=O)NH-であり、
R1は、置換または非置換であってもよいC5~C10アリールであり、
P1は、MetまたはNleであり、
P2は、ペプチドまたはペプチド模倣体であり、
nは、6~24の整数であり、
Qは、アルファアミノ基および側鎖アミノ基においてアシル化されることができるアミノ二官能性残基であり、
Xは、C2~C10ジアミノアルキルであり、かつ
Yは、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドまたはビニルスルホンである)、
またはその塩。
式V.[[R-P1-P2-NH(CH2CH2O)nCH2CH2-]4- (Q)2-Q-X-Y
(式中、
Rは、HC(=O)-またはR1NHC(=O)NH-であり、
R1は、置換または非置換であってもよいC5~C10アリールであり、
P1は、MetまたはNleであり、
P2は、ペプチドまたはペプチド模倣体であり、
nは、6~24の整数であり、
Qは、アルファアミノ基および側鎖アミノ基においてアシル化することができるアミノ二官能性残基であり、
Xは、C2~C10ジアミノアルキルであり、かつ
Yは、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドまたはビニルスルホンである)、
またはその塩。
式VI.[[[R-P1-P2-NH(CH2CH2O)nCH2CH2-]8-(Q)4-(Q)2-Q-X-Y
(式中、
Rは、HC(=O)-またはR1NHC(=O)NH-であり、
R1は、置換または非置換であってもよいC5~C10アリールであり、
P1は、MetまたはNleであり、
P2は、ペプチドまたはペプチド模倣体であり、
nは、6~24の整数であり、
Qは、アルファアミノ基および側鎖アミノ基においてアシル化することができるアミノ二官能性残基であり、
Xは、C2~C10ジアミノアルキルであり、かつ
Yは、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドまたはビニルスルホンである)、
またはその塩。
X1は、Leu、Ile、Nle、ジエチルグリシン、またはジプロピルグリシンであり、
X2は、Phe、α-Me-Phe、DPhe、4―F-Phe、2-Nal、または1-Nalであり、
X3は、Glu、Leu、Nle、α-Me-Leu、DLeu、または非存在であり、かつ
X4は、Glu、DGlu、γGlu、Gla、または非存在である。
「IgG抗体」の一般的な構造は非常によく知られている。IgGタイプの野生型(WT)抗体は、鎖内および鎖間ジスルフィド結合を介して架橋された4つのポリペプチド鎖(2つの同一の「重」鎖および2つの同一の「軽」鎖)からなるヘテロ四量体である。各重鎖(HC)は、N末端重鎖可変領域(「VH」)および重鎖定常領域から構成されている。重鎖定常領域は、3つのドメイン(CH1、CH2、およびCH3)と、CH1ドメインとCH2ドメインとの間のヒンジ領域(「ヒンジ」)とで構成されている。各軽鎖(LC)は、N末端軽鎖可変領域(「VL」)および軽鎖定常領域(「CL」)から構成されている。VLおよびCL領域は、カッパ(「κ」)またはラムダ(「λ」)アイソタイプ(それぞれ「Cκ」または「Cλ」)のものであってもよい。各重鎖は、重鎖可変ドメインと軽鎖可変ドメインとの間の界面(VH/VL界面)、ならびに重鎖定常CH1および軽鎖定常ドメイン(CH1/CL界面)を介して1つの軽鎖と結合する)。VH-CH1およびVL-CLセグメントの各々の間の結合は、同じ抗原標的またはエピトープへの抗体結合を指示する2つの同一の抗原結合フラグメント(Fab)を形成する。各重鎖は、各重鎖のヒンジ-CH2-CH3セグメント間の界面を介して他の重鎖と結合し、2つのCH2-CH3セグメント間の結合は抗体のFc領域を形成する。まとまって、各FabおよびFcは、IgG抗体の特徴的な「Y字型」アーキテクチャを形成し、各Fabは「Y」の「アーム」を表す。IgG抗体は、サブタイプ、例えば、IgG1、IgG2、IgG3、およびIgG4へと分けることができ、該サブタイプは、ヒンジ領域の長さ、鎖間および鎖内ジスルフィド結合の数および位置、ならびにそれぞれのHC定常領域のアミノ酸配列によって異なる。
IgG重鎖定常領域残基は、多様な変数または抗原結合ドメインを有する親mAbを用いて操作されたシステイン設計の使用を突然変異が可能にするように選択される。簡単にいうと、抗体の二次構造および三次構造にとって重要ではない定常ドメイン内のバリン、アラニン、およびセリン残基が、インシリコでの初期突然変異のために選択される。CH1-CカッパFab(pdb:4DTG)およびIgG4 Fc(pdb:4C55)の公表されている結晶構造を使用して、複数の異なる抗体単一システイン操作コンストラクトを設計する。各突然変異体設計物をコードする遺伝子を、ヒトIgG4重鎖およびカッパ軽鎖プラスミドにおいて構築し、細胞内で発現させ、結合していない操作されたシステインを含有するmAbは発現レベルおよび分析特性によって特徴づける。結合前の最小の高分子量凝集体で(<10%)で、親の野生型mAbと本質的に同じ標的結合親和性および発現レベル(ELISAで決定)を保持する構築物を規模拡大産生し、さらに特徴づける。
実施例2(A):ホルミル-Met-Leu-Phe-Lys(Mal-PEG12)-OH(「ペプチド-‘183」)(配列番号22)の合成。
抗体-ペプチド生体結合は、次のように調製することができる。操作されたシステイン残基を含有する親抗体を、Zeba(商標)スピン脱塩カラム(40K MWCO)を使用して、50mMトリス(ヒドロキシメチル)アミノメタン(トリス-HCl)、2mMエチレンジアミン四酢酸(EDTA)、pH7.5中へと緩衝液交換し、5mg/mlの終濃度にする。MilliQ水中に可溶化した、新たに調製した100mMのジチオトレイトール(DTT)を40倍モル濃度過剰量で抗体に添加する。反応混合物を室温で16時間インキュベートする。インキュベーション時間の後、Zebaスピン脱塩カラムを使用して、反応混合物を50mMのトリス(ヒドロキシメチル)アミノメタン(トリス-HCl)、150mM塩化ナトリウム(NaCl)、pH7.5中へと緩衝液交換して、過剰量の未反応DTTを除去する。
TMab(「トラスツズマブ」)、AME133、およびエミベツズマブ構築物のシステイン操作重鎖上のペプチド-183の結合比を、抱合体付加の加重平均を用いて、未処置の質量分析によって決定する。未処置の質量測定結果を、Agilent 6230 ESI-TOF質量分析計と組み合わせたAgilent 1290HPLCを使用して収集する。試料(2ug)を、PLRP-S逆相カラム(Agilent)で、移動相Aとして水/0.2%ギ酸、移動相Bとしてアセトニトリル/0.2%ギ酸を使用し、0.3ml/分の流量で、4分間で20~70%Bの勾配溶離を用いて分析する。Agilent 6230 TOFを、4000Vの陽イオンモード、65Vのスキマー、300Vのフラグメンター、350℃のガス温度、12psiの乾燥ガス、および40psiの噴霧器ガスで稼働させる。MS走査は、1走査/秒で、600m/zから5000m/zまでとする。データは、2分から15分まで収集し、タンパク質の分子量は、TICピークスペクトルを合計した後、Agilent Mass HunterおよびBioconfirm第7.0版を用いたデコンボリューションを合計することによって決定する。非還元試料のデコンボリューションは50000~190000Da.であり、ピーク幅は1.0Da.であり、20回の反復および1Da.のステップとする。
TMabのヒトHER2への結合を、ヒトHER2でコーティングされた96ウェル細胞培養プレートを使用したELISAによって決定する。プレートを抱合抗体に80分間曝露し、洗浄して非抱合抗体を除去し、二次抗体と50分間インキュベートする。プレートを洗浄した後、37℃で25分間発色させる。光学密度560で96ウェルプレートリーダーを用いて結合を測定する。本質的に先に説明した手順に従って、次のデータを取得した。
改変されたBoydenチャンバーアッセイにおいてトランスウェル膜(Corning 3415番)を経た抗体抱合体への一次ヒト多形核好中球(PMN)の移動を観察することによって、走化性を測定する。好中球濃縮製剤からのおよそ2~4×105個の細胞を、3.0umの細孔を有する膜上の上部トランスウェルチャンバーに播種する。下部のトランスウェルチャンバーには、緩衝液とfMLF(陽性対照としてのN-ホルミル-Met-Leu-Pheペプチド)と実験用抗体生体抱合体とからなる溶液を含有している。一部の実験には、fMLFK(Mal[OH]-PEG12)-OH(加水分解ペプチド-‘183)およびH-Met-Leu-Phe-Lys(Mal[OH]-PEG12-OH(加水分解ペプチド-‘844)も陽性対照として含んでいた。トランスウェル中に播種した後、細胞を加湿インキュベーター内で37℃に置く。1時間後、上部チャンバー内のいかなる細胞も取り出し、製造元が指定したプロトコルに従ってCellTiter-Glo(商標)(Promega G7571番)を使用して、下部チャンバーにうまく移動した細胞の割合を定量化する。移動の割合は、(下部チャンバーに移動する細胞の数/最初に播種した細胞の数)として定義する。標準曲線を使用して細胞数を決定する。全てのデータは、各個々の実験についての最大fMLF応答に対する割合に変換する。
PMN移動を誘導するN-ホルミル修飾ペプチドの能力を決定するために、N-ホルミル修飾の有無の下でペプチドに初代ヒトPMNを曝露し、PMN移動応答を測定する。本質的に先に説明した手順に従って、PMNは、それぞれ10nM、1nM、および1μMの濃度でfMLF、ペプチド-‘183、およびペプチド-‘844に最大限に応答した(表4)。ペプチド-‘844は、N-ホルミル基を欠いていることを除き、ペプチド-’183と類似しており、ペプチド-‘183とペプチド-’844との用量応答の違いによって示されるように、PMN移動を誘導する点で1000倍効力が低い。値は、10nMのfMLFに対するPMNの移動率として与えられる。
初代ヒト好中球をホルミルペプチドに曝露し、PMN移動応答を、細胞計数へと変換する代わりに生の移動値が保持されることを除いて、本質的に上述のとおり測定する。本質的に先に説明したとおりの手順に従って、次のデータを100nMのfMLFに対する割合として提供する。
ヒト抗MET IgG4抗体(エミベツズマブ)を修飾して、各HCのCH1-S124またはCH3-A378のいずれかにシステイン残基を含む。修飾した抗体は、ペプチドと抗体の比が約2:1で、ペプチド-‘183またはf-Nle(ホルミル-Nle-Leu-Phe-PEG12-Lys(マレイミド-プロピオニル)-OH)のいずれかに結合する。一次ヒトPMNをこれらの異なる抗体抱合体に曝露し、PMN移動応答を測定する。
CH1-124Cおよび378Cまたは378Cのみでアミノ酸修飾されたヒト抗MET IgG4抗体(エミベツズマブ)を、ペプチド-‘183に抱合体させる。一次ヒトPMNをこれらの抗体抱合体に曝露し、PMN応答を測定する。
TMab-G1-fMLFK-HC-124C-378C、AME133-G1(IQ)-fMLFK-HC-124C-378C、およびエミベツズマブ-G4-UC-124C-378Cを、本質的に先に説明したとおりのPMN走化性アッセイにおいて研究する。TMab-G1-fMLFK-HC-124C-378CおよびAME133-G1(IQ)-fMLFK-HC-124C-378Cは、それぞれ10nMおよび3nMでPMN移動を最大限に誘導した。エミベツズマブ-G4-UC-124C-378Cは、抱合抗体と比較してPMN移動を誘発しなかった。値を以下の表7に与えており、30nM fMLFに対するPMNの移動率とする。
多形核好中球(PMN)は、刺激の際にROSを産生することができ、ミエロペルオキシダーゼのようなROS生成酵素を案有している。PMNの刺激は、脱顆粒を誘導し、病原体に応答するための主要な機序として、事前に形成されたROSおよびROS生成酵素を細胞外環境へと放出する。PMNによるROS産生の刺激は、細菌から真核細胞まで、広範囲の標的を損傷および殺滅するのに十分である。PMNを刺激してROSを産生する最も有効な経路の1つは、N-ホルミルペプチドによるPMN上のホルミルペプチド受容体1(FPR1)の関与を包含する。PMN上の抗体によるFc受容体の関与も、ROS産生を誘導する有効な機序である。
一次ヒトPMNをペプチドに曝露し、本質的に先に説明するとおり、ルミノール増幅化学発光を使用してROS産生を測定した。データを以下の表8に示し、抗体抱合体への曝露後5分間に記録した発光についての曲線下面積計算を使用して、10uM fMLFに対する割合として、データを報告する。
初代ヒト好中球を、合成アミノ酸を含むアミノ酸置換を有するホルミルペプチド変異体へ曝露し、本質的に先に説明したとおり、ルミノール増幅化学発光を使用してROS産生を測定した。データを以下の表8bに示しており、試薬への曝露後5分間に記録された発光についての曲線下面積計算を使用して、3000nM fMLFに対する割合としてデータを報告する。EC50値を、Graphpad PRISMのBest-Fit値を使用して計算した。
骨髄から精製したマウス好中球をホルミルペプチドまたは抗体抱合体へ曝露し、本質的に先に説明したとおりルミノール増幅化学発光を使用してROS産生を測定した。データを以下の表8cに示し、試薬への曝露後5分間に記録した発光についての曲線下面積計算を使用して、10000nM fMLFに対する割合としてデータを報告する。
一次ヒトPMNをTMab生体抱合体に曝露し、本質的に先に説明したとおりルミノール増幅化学発光を使用してROS産生を測定した。データを以下の表9に示しており、試薬への曝露後5分間に記録した発光についての曲線下面積計算を使用して、1000nM fMLFに対する割合としてデータを報告する。
一次ヒトPMNをエミベツズマブ抱合体に曝露し、本質的に先に説明したとおり、ルミノール増幅化学発光を使用してROS産生を測定した。データを以下の表10に示しており、抗体抱合体への曝露後5分間に記録した発光についての曲線下面積計算を使用して、1000nM fMLFに対する割合としてデータを報告する。
一次ヒトPMNをAME133抗体抱合体に曝露し、本質的に先に説明したとおりルミノール増幅化学発光を使用してROS産生を測定した。データを以下の表11に示しており、抗体抱合体への曝露後5分間に記録した発光についての曲線下面積計算を使用して、1000nM fMLFに対する割合としてデータを報告する。
抱合抗体が非抱合抗体よりも多くのROS産生を誘起するかどうかを決定するために、ROS産生を本質的に先に説明したとおり測定する。全てのペプチドを、終濃度300nMで試験する。PMNを1uMのシクロスポリンHとともに30分間プレインキュベートした後、ペプチドを添加する。
初代ヒト好中球を、FcγR3に対する親和性を上昇させるFc領域の突然変異(247I、339Q、±332E突然変異)の有無の下で、Tmab N-ホルミルペプチド抱合体に曝露する。ROS産生を、本質的に先に説明したとおりルミノール増幅化学発光を使用して測定する。データを以下の表12bに示しており、試薬への曝露後5分間に記録した発光の曲線下面積計算を使用して、1000nM fMLFに対する割合としてデータを報告する。FPR1仲介性ROS産生についてのEC50値を、Graphpad PRISMにおけるBest-Fit値を使用して計算する。
一次ヒト好中球を、種々の長さのPEGリンカーを有するN-ホルミルペプチドTmab抱合体へ曝露し、本質的に先に説明したとおりルミノール増幅化学発光を使用してROS産生を測定した。データを以下の表12cに示しており、試薬への曝露後5分間に記録した発光の曲線下面積計算を使用して、3000nM FRM-023(配列番号40)に対する割合としてデータを報告する。FPR1を介したROS産生についてのEC50値を、Graphpad PRISMにおけるBest-Fit値を使用して計算した。
腫瘍に対するPMNを標的とし、腫瘍細胞殺滅に関与する抗体化合物の能力を決定する。TMab、エミベツズマブ、およびAME133抗体抱合体を腫瘍細胞殺滅においてPMNを関与させる能力について、固形腫瘍および液性腫瘍で評価する。
2つのN-ホルミル化ペプチドであるf-Met-Leu-PheおよびPeptide-‘183をSKOV3腫瘍細胞殺滅アッセイにおいて査定して、モノクローナル抗体による腫瘍標的化の非存在下でのPMN仲介性腫瘍細胞殺滅に及ぼすN-ホルミルメチオニンペプチドの影響を決定する。
付着性HER2(+)SKOV3ヒト腺癌腫瘍細胞をおよそ24時間播種し、次にTMab-G1-fMLFK-HC-124C-378CまたはTMab-G1-UC-HC-124C-378Cとともにインキュベートし、10:1のエフェクター標的対細胞比で初代ヒトPMNに曝露した。
付着したMET(+)A549ヒト肺癌細胞をおよそ24時間播種し、次に、エミベツズマブ-G4-fMLFK-HC-124C-375Cまたはエミベツズマブ-G4-UC-HC-124C-375Cとともにインキュベートし、一次ヒトPMNに10:1のエフェクター対標的細胞比で曝露する。
非接着性のCD20+Daudi Bリンパ芽球細胞をxCelligence免疫療法キット(ACEA#8100004)で固定し、製造元のプロトコルに従って腫瘍細胞をE-Plateウェルに固定し、以下の表16に示す条件に曝露する。NCIの割合の値は、指定した条件に6時間曝露した後のDAUDI細胞の相対的な生存率を表す。値を、「緩衝液対照」に正規化された平均の割合±標準偏差として与え、全ての条件についてn=4とする。統計的有意性を、一元配置分散分析およびそれに続くポストホックダネットの多重比較検定対「+PMN」によって決定した。
一次ヒト好中球を、異なる数の操作されたシステイン結合部位を有するIgG4抗体抱合体に曝露し、本質的に先に説明したとおりルミノール増幅化学発光を使用してROS産生を測定する。本質的に先に説明したとおりの手順に従って、次のデータを取得した。
次のものは、本開示の種々の実施形態を表す本開示による実例となる実施形態のリストを含む。
(i)Rが、HC(=O)-もしくはR1NHC(=O)NH-であり、
(ii)R1が、置換もしくは非置換であってもよいC5~C10アリールであり、
(iii)P1が、MetもしくはNleであり、
(iv)P2が、ペプチドもしくはペプチド模倣体であり、
(v)P3が、イプシロンアミノアシル化したリジンであり、
(vi)nが、6~24の整数であり、
(vii)Yが、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミド、もしくはビニルスルホンである、化合物R-P1-P2-P3-NH(CH2CH2O)nCH2CH2-Y、
(viii)またはその塩。
(i)Rが、HC(=O)-もしくはR1NHC(=O)NH-であり、
(ii)R1が、置換もしくは非置換であってもよいC5~C10アリールであり、
(iii)P1が、MetもしくはNleであり、
(iv)P2が、ペプチドもしくはペプチド模倣体であり、
(v)P3が、イプシロンアミノアシル化したリジンであり、
(vi)nが、6~24の整数であり、
(vii)Yが、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドもしくはビニルスルホンである、化合物R-P1-P2-NH(CH2CH2O)nCH2CH2-P3―Y、
(viii)またはその塩。
(i)Rが、HC(=O)-もしくはR1NHC(=O)NH-であり、
(ii)R1が、フェニル、4-クロロフェニル、4-メトキシフェニル、p-トリル、m-トリル、アリール、置換アリール、もしくは2-アリルであり、
(iii)P2が、ペプチドもしくはペプチド模倣体であり、
(iv)X5が、C2~C10ジアミノアルキルであり、かつ
(v)Yが、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドもしくはビニルスルホンである、化合物R-Met-P2-NH(CH2CH2O)nCH2CH2-X5-Y、
(xi)またはその塩。
(i)Rが、HC(=O)-もしくはR1NHC(=O)NH-であり、
(ii)R1が、置換もしくは非置換であってもよいC5~C10アリールであり、
(iii)P1が、MetもしくはNleであり、
(iv)P2が、ペプチドもしくはペプチド模倣体であり、
(v)nが、6~24の整数であり、
(vi)Qが、Lys、Orn、Dap、Dab、もしくはアルファアミノ基および側鎖アミノ基においてアシル化されることができる他のアミノ二官能性残基であり、
(vii)Xが、C2~C10ジアミノアルキルであり、かつ
(viii)Yが、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドもしくはビニルスルホンである、化合物[R-P1-P2-NH(CH2CH2O)nCH2CH2-]2-Q-X-Y、
(ix)またはその塩。
(i)Rが、HC(=O)-もしくはR1NHC(=O)NH-であり、
(ii)R1が、置換もしくは非置換であってもよいC5~C10アリールであり、
(iii)P1が、MetもしくはNleであり、
(iv)P2が、ペプチドもしくはペプチド模倣体であり、
(v)nが、6~24の整数であり、
(vi)Qが、Lys、Orn、Dap、Dab、もしくはアルファアミノ基および側鎖アミノ基においてアシル化されることができる他のアミノ二官能性残基あり
(vii)Xが、C2~C10ジアミノアルキルであり、かつ
(viii)Yが、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドもしくはビニルスルホンである、化合物[[R-P1-P2-NH(CH2CH2O)nCH2CH2-]4-(Q)2―Q-X-Y、
(ix)またはその塩。
(i)Rが、HC(=O)-もしくはR1NHC(=O)NH-であり、
(ii)R1が、置換もしくは非置換であってもよいC5~C10アリールであり、
(iii)P1が、MetもしくはNleであり、
(iv)P2が、ペプチドもしくはペプチド模倣体であり、
(v)nが、6~24の整数であり、
(vi)Qが、Lys、Orn、Dap、Dab、もしくはアルファアミノ基および側鎖アミノ基でアシル化されることができる他のアミノ二官能性残基であり
(vii)Xが、C2~C10ジアミノアルキルであり、かつ
(viii)Yが、マレイミド、マレイミド-ジアミノプロピオン酸、ヨードアセトアミドもしくはビニルスルホンである、化合物[[[R-P1-P2-NH(CH2CH2O)nCH2CH2-]8-(Q)4-(Q)2-Q-X-Y、
(ix)またはその塩。
(i)X1が、Leu、Ile、Nle、ジエチルグリシン、またはジプロピルグリシンであり、
(ii)X2が、Phe、α-Me-Phe、DPhe、4-F-Phe、2-Nal、または1-Nalであり、
(iii)X3が、Glu、Leu、Nle、α-Me-Leu、DLeu、または非存在であり、かつ
(iv)X4が、Glu、DGlu、γGlu、Gla、または非存在である、実施形態87~92のいずれか1つに記載の化合物。
エミベツズマブ378C抱合体の抗体重鎖(配列番号1)
エミベツズマブ124C抱合体の抗体重鎖(配列番号2)
エミベツズマブ124C~378C抱合体の抗体重鎖(配列番号3)
エミベツズマブ124C~375C抱合体の抗体重鎖(配列番号4)
エミベツズマブ抱合体の抗体軽鎖(配列番号5)
DIQMTQSPSSLSASVGDRVTITCSVSSSVSSIYLHWYQQKPGKAPKLLIYSTSNLASGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQVYSGYPLTFGGGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
TMab124C~378C抱合体の抗体重鎖(配列番号6)
TMab抱合体の抗体軽鎖(配列番号7)
DIQMTQSPSSLSASVGDRVTITCRASQDVNTAVAWYQQKPGKAPKLLIYSASFLYSGVPSRFSGSRSGTDFTLTISSLQPEDFATYYCQQHYTTPPTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
AME133 124C~378C抱合体の抗体重鎖(配列番号8)
AME133抱合体の抗体軽鎖(配列番号9)
EIVLTQSPGTLSLSPGERATLSCRASSSVPYIHWYQQKPGQAPRLLIYATSALASGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQWLSNPPTFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
ヒトIgG1定常領域(配列番号10)
ASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
ヒトIgG4定常領域(配列番号11)
ASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPSCPAPEFLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVYTLPPSQEEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSRLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLG
IgG4 124C抱合体の抗体重鎖定常領域(配列番号12)
IgG4 378C抱合体の抗体重鎖定常領域(配列番号13)
IgG4 375C抱合体の抗体重鎖定常領域(配列番号14)
IgG4 124C-378C抱合体の抗体重鎖定常領域(配列番号15)
IgG4 124C-375C抱合体の抗体重鎖定常領域(配列番号16)
IgG1 124C抱合体の抗体重鎖定常領域(配列番号17)
IgG1 378C抱合体の抗体重鎖定常領域(配列番号18)
IgG1 375C抱合体の抗体重鎖定常領域(配列番号19)
IgG1 124C-378C抱合体の抗体重鎖定常領域(配列番号20)
IgG1 124C~375C抱合体の抗体重鎖定常領域(配列番号21)
fMLFX(ペプチド-‘183)(配列番号22)
(位置1のMetはホルミル化されている)
(位置4のXは、マレイミド-PEGリンカーへのアミド結合形成により修飾されたリジン残基である)
fMLFK(配列番号23)
(位置1のMetはホルミル化されている)
MLFX(ペプチド-‘844)(配列番号24)
(位置4のXは、マレイミド-PEGリンカーへのアミド結合形成により修飾されたリジン残基である)
MLFK(配列番号25)
MET415C抗体抱合体の抗体重鎖(配列番号26)
MET156C抗体抱合体の抗体軽鎖(配列番号27)
MET171C抗体抱合体の抗体軽鎖(配列番号28)
MET191C抗体抱合体の抗体軽鎖(配列番号29)
MET193C抗体抱合体の抗体軽鎖(配列番号30)
MET 202C抗体抱合体の抗体軽鎖(配列番号31)
MET208C抗体抱合体の抗体軽鎖(配列番号32)
トラスツズマブ124C~157C抗体抱合体の抗体重鎖(配列番号33)
124C~378C二重特異性抗体I抱合体の抗体重鎖A(配列番号34)
124C~378C二重特異性抗体I抱合体の抗体重鎖B(配列番号35)
fMIFLX(FRM-021)(配列番号36)
(位置1のMetはホルミル化されている)
(位置5のXは、加水分解されたマレイミド-PEGリンカーへのイプシロンアミド結合形成を介して修飾されたリジン残基側鎖である)
fMXFX(FRM-029)(配列番号37)
(位置1のMetはホルミル化されている)
(位置2のXはジエチルグリシンである)
(位置4のXは、式(PEG6)2-NH-(CH2)2-NH2のPEGリンカーへのアミド結合形成によってC末端で結合したロイシン残基である)
fMXFX(FRM-030)(配列番号38)
(位置1のMetはホルミル化されている)
(位置2のXはジプロピルグリシンである)
(位置4のXは、式(PEG6)2-NH-(CH2)2-NH2のPEGリンカーへのアミド結合形成によってC末端で結合したロイシン残基である)
fMIX(FRM-031)(配列番号39)
(位置1のMetはホルミル化されている)
(位置3のXは、式PEG12-NH-(CH2)2-NH2のPEGリンカーへのアミド結合形成によってC末端で結合したフェニルアラニン残基である)
fMIFX(FRM-023)(配列番号40)
(位置1のMetはホルミル化されている)
(位置4のXは、式PEG12-NH-(CH2)-NH2のPEGリンカーへのアミド結合形成によってC末端で結合したロイシン残基である)
fMIFX(FRM-032)(配列番号41)
(位置1のMetはホルミル化されている)
(位置4のXは、式NH-(CH2)-NH-[(Mal-Dap(NH2)]のリンカーへのアミド結合形成よって修飾されたロイシン残基である)
fNleLX(FRM-009)(配列番号42)
(位置1のNleはホルミル化されている)
(位置3のXは、式PEG12-Lys(マレイミド-プロピオニル)-OHのリンカーへのアミド結合形成によってC末端で結合したフェニルアラニンである)
エミベツズマブ抱合体の抗体重鎖(配列番号43)
QVQLVQSGAEVKKPGASVKVSCKASGYTFTDYYMHWVRQAPGQGLEWMGRVNPNRRGTTYNQKFEGRVTMTTDTSTSTAYMELRSLRSDDTAVYYCARANWLDYWGQGTTVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPEAAGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVYTLPPSQEEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSRLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLG
エミベツズマブ157C抗体抱合体の抗体重鎖(配列番号44)
エミベツズマブ162C抗体抱合体の抗体重鎖(配列番号45)
エミベツズマブ262C抗体抱合体の抗体重鎖(配列番号46)
エミベツズマブ375C抗体抱合体の抗体重鎖(配列番号47)
エミベツズマブ397C抗体抱合体の抗体重鎖(配列番号48)
エミベツズマブ124C-157C-378C抗体抱合体の抗体重鎖(配列番号49)
エミベツズマブ124C-162C-378C抗体抱合体の抗体重鎖(配列番号50)
Tmab(IQE)124C-378C抗体抱合体の抗体重鎖(配列番号51)
IgG1 157C抱合体の抗体重鎖定常領域(配列番号52)
IgG1 124C-157C抱合体の抗体重鎖定常領域(配列番号53)
IgG4 157C抱合体の抗体重鎖定常領域(配列番号54)
IgG4 162C抱合体の抗体重鎖定常領域(配列番号55)
IgG4 124C-157C-373C抱合体の抗体重鎖定常領域(配列番号56)
IgG4 124C-162C-373C抱合体の抗体重鎖定常領域(配列番号57)
二重特異性抗体I抱合体の抗体軽鎖A(配列番号58)
RIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQDKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIKGQPKAAPSVTLFPPSSEELQANKATLVCYISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAAWSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTEC
二重特異性抗体I抱合体の抗体軽鎖B(配列番号59)
DIQMTQSPSSLSASVGDRVTITCSASSSVTYMYWYQRKPGKAPKLLIYDTSNLASGVPSRFSGSGSGTDYTFTISSLQPEDIATYYCQQWSSHIFTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
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JP2023512390A (ja) * | 2020-02-05 | 2023-03-27 | 中外製薬株式会社 | 組換え抗原結合分子を製造するおよび/または濃縮するための方法 |
US12036286B2 (en) | 2021-03-18 | 2024-07-16 | Seagen Inc. | Selective drug release from internalized conjugates of biologically active compounds |
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US11771776B2 (en) | 2021-07-09 | 2023-10-03 | Dyne Therapeutics, Inc. | Muscle targeting complexes and uses thereof for treating dystrophinopathies |
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WO2018232088A1 (en) | 2018-12-20 |
EP3638699A1 (en) | 2020-04-22 |
CA3066920A1 (en) | 2018-12-20 |
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