JP2015007066A - 中枢神経系のα−L−イデュロニダーゼ活性を増加させるための方法および組成物 - Google Patents
中枢神経系のα−L−イデュロニダーゼ活性を増加させるための方法および組成物 Download PDFInfo
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Abstract
Description
本願は2007年7月27日出願の米国仮出願No.60/952,547の利益を主張する。
本発明は、中枢神経系のα-L-イデュロニダーゼ活性を増加させるための方法および組成物に関する。
本願は、IDUA欠損症に罹患した対象を治療するための方法および組成物について記載する。特に、本方法は、治療的有効量の2機能性ヒトインスリンレセプター抗体-IDUA (HIR Ab-IDUA) 融合抗体を全身投与することによりCNSへのIDUAの送達を可能にする。HIR Ab-IDUA融合抗体は、該インスリンレセプターの細胞外ドメインと結合し、IDUA活性を保持したまま、血液脳関門を横切ってCNS内に輸送される。全身投与のためのHIR Ab-IDUA融合抗体の治療的有効量は、本明細書に記載の末梢血液からの該融合抗体の特異的CNS取り込み特性に一部基づくだろう。
血液脳関門は、全身投与したIDUA (例えば、組み換えIDUA) の中枢神経系への送達に対する厳格な障害である。本明細書に記載の方法および組成物は、治療的に有意なレベルのIDUA活性を血液脳関門を横切ってCNSに送達するのに重要な以下の3つの要因に対処する:1)血液脳関門を横切るのを可能にするIDUAの修飾、2)全身投与した修飾IDUAのCNS内への取り込み量と速度、および3)血液脳関門を横切ったIDUA活性の保持。本明細書に記載の方法および組成物の種々の局面は、(1)ヒトインスリンレセプターの細胞外ドメインに対する免疫グロブリン (重鎖または軽鎖)と介在配列有りまたは無しで融合したIDUA (すなわち、IDUA活性を有するタンパク質)を含むヒトインスリンレセプター (HIR)抗体 (Ab)-IDUA融合抗体を提供し、(2)該融合抗体のCNSへの取り込みとその特異活性の特徴付けに基づいて該融合抗体の治療的有効全身用量を確立する、ことによりこれらの要因に対処する。
定 義
血液脳関門
インスリンレセプター
インスリンレセプター介在輸送系に結合する抗体
α-L-イデュロニダーゼ (IDUA)
組成物
ある態様において、HIR Abは、分離した部分としての活性に比べてその活性の少なくとも約10、20、30、40、50、60、70、80、90、95、99、または100%、IDUAは、分離した部分としての活性に比べてその活性の少なくとも約10、20、30、40、50、60、70、80、90、95、99、または100%を保持する。したがって、本明細書には、血液脳関門を横切ることができ、HIR AbおよびIDUAが融合抗体の部分として、分離した部分としての活性、すなわちHIR結合活性およびIDUA活性に比べてその活性の少なくとも平均約10、20、30、40、50、60、70、80、90、95、99、または100%を保持する、2機能性HIR Ab-IDUA融合抗体を含む組成物を記載している。HIR Ab IDUA融合抗体は、本明細書に記載のいずれかのHIR抗体およびIDUAを含む融合タンパク質を表す。
方 法
26アミノ酸のシグナルペプチド(NP_00194)を含む成熟ヒトIDUAタンパク質のアミノ酸 Met1-Pro6532に対応するヒトIDUA cDNAを、「IDUAフォワードプライマー」および「IDUAリバースプライマー」およびヒト肝臓ポリA+RNA(Clontech)と称する表1に記載のオリゴデオキシヌクレオチド(ODN)を用いる逆転写(RT)ポリメラーゼ連鎖反応(PCR)によりクローンした。ヒト肝臓cDNAは、スーパースクリプトファーストストランド合成キット (Invitrogen、San Diego、CA)とオリゴデオキシチミジンプライミングを使用説明書に従って用いて製造した。IDUA cDNAを、50μl Pfu緩衝液(Stratagene)中の、2μl 肝臓 cDNA逆転写反応、0.2μM IDUAフォワードおよびリバースODNプライマー(表1)、0.2mM dNTP、および2.5U PfuUltraDNAポリメラーゼ(Stratagene、San Diego、CA)を用いるPCRによりクローンした。増幅は、マスターサイクラー温度サイクラー(Eppendorf、Hamburg、Germany)を用い、初期変性工程95℃2分間、次いで変性95℃30秒間を30サイクル、55℃30秒間アニーリング、および72℃1分間増幅にて行った。PCR生成物を1% アガロースゲル電気泳動中で分割し、ヒトIDUA cDNAに対応する〜1.9kbの予測した主な一本鎖を単離した(図8)。クローンしたヒトIDUAを、pcDNA真核発現プラスミドのEcoRV部位に挿入し、このIDUA発現プラスミドをpCD-IDUAと呼んだ。該プラスミドの完全発現カセットが両鎖のシーケンシングにより確認した。
COS細胞を6ウェルクラスター皿に播き、リポフェクタミン2000を比1:2.5(μg DNA:uLリポフェクタミン)で用いてpCD-IDUAでトランスフェクトするか、またはpHIR Ab-LCおよびpCD-HC-IDUAで二重トランスフェクトし、次いで順化無血清培地を3日および7日を回収した。培地および細胞内コンパートメント両方のIDUA酵素活性を測定した。洗浄した単層を、0.4Mギ酸ナトリウム、pH=3.5、0.2% Triton X-100中で溶解し、溶解物を氷上で7秒間3回超音波処理し、遠心し、次いで上清をIDUA酵素アッセイにかけた(He et al、(1999)、Mol Genet Metab、67:106-112)。COS細胞をpCD-IDUAでトランスフェクションし、表2に示すようにトランスフェクション後3日および7日の細胞内コンパートメントおよび培地中に高レベルのIDUA酵素活性を生じた。
HIR 細胞外ドメイン(ECD)の融合タンパク質の親和性は、ELISAで測定した。HIR ECDで永久的にトランスフェクトしたCHO細胞を無血清培地(SFM)中で増殖させ、次いで、HIR ECDを、Coloma et al. (2000) Pharm Res、17:266-274に記載のごとく小麦胚芽アグルチニンアフィニティーカラムを用いて精製した。HIR ECDをNunc-Maxisorb 96ウェル皿にプレートし、HIR AbまたはHIR Ab-IDUA融合タンパク質とHIR ECDとの結合を、ビオチン化ヤギ抗ヒトIgG (H+L)二次抗体、次いでアビジンおよびビオチン化パーオキシダーゼ(Vector Labs、Burlingame、CA)で検出した。50%最大結合をもたらすHIR AbまたはHIR Ab-IDUA融合タンパク質の濃度を、非線形回帰分析で測定した。
I型MPSハーラー繊維芽細胞および健康ヒト繊維芽細胞を6ウェルクラスター皿中で増殖させてコンフルエントとした。培地を吸引し、ウェルをリン酸緩衝生理食塩水(PBS)で洗浄し、ある範囲の濃度のHIR Ab-IDUA融合タンパク質を加えた1mLの血清不含ダルベッコ改良イーグル培地(DMEM)と37℃で60分間インキュベーションした。培地を吸引し、ウェルをPBSで十分に洗浄し(1mL/ウェル、5回洗浄)、次いで単層を0.4 mL/ウェルの溶解用緩衝液(0.4Mギ酸ナトリウム、0.2% Triton X-100、pH=3.5)中にとり、氷上で7秒間3回超音波処理し、次いで4℃で10分間微量遠心した。上清を、IDUA酵素活性およびビシンコニン酸 (BCA)タンパク質アッセイ用に除去した。該融合タンパク質の取り込みをnmol/hrIDUA酵素活性/mgタンパク質で表した。
HIR Ab-IDUA融合タンパク質を[125I]ヨウ素でヨウ素化し、特異活性24μCi/μgおよびトリクロル酢酸(TCA)沈殿性99%とした。融合タンパク質を霊長類に注射する同じ日にヨウ素化した。体重7.2kgの7歳の雌アカゲザルをCovance、Inc.(Alice、TX)から購入し、筋肉内ケタミン、およびイソフルラン吸入により麻酔した。麻酔した霊長類に、用量957μCiの[125I]-HIR Ab-IDUA融合タンパク質と400μg (0.06mg/kg)の無標識HIR Ab-IDUA融合タンパク質を混合し終量3mLとしたものを単回静脈内注射により投与した。血清を、120分間にわたり複数時点で回収し、(a)血清125I放射能、および(b)血清IDUA酵素活性について分析した。麻酔し、一夜絶食した霊長類の血清グルコースは120分間の試験期間を通して平均88±1mg%と一定であり、このことはHIR Ab 融合タンパク質の投与は内因性インスリンレセプターの干渉を生じず、血糖コントロールに効果がないことを示す。アカゲザルにおける[125I]標識ネズミHIR Abの脳への送達に関する先の研究と同様に(Pardridge et al、(1995)、Pharm Res、12:807-816)、薬剤注射後120分に動物を安楽死させ、脳と臓器の放射能をガンマーカウンターで分析し、脳は先に記載のごとくキャピラリーデプレッション(capillary depletion)法でも分析した(Triguero et al.、(1990)、J Neurochem、54:1882-1888)。キャピラリーデプレッション技術は、in vivoで血液脳関門を介して脳内への融合タンパク質のトランスサイトーシスを示す。
TV-HIRMAb-IDUAの遺伝子操作は以下からなるいくつかの線状工程を用いて達成された:
(1) pCD-HC-IDUA-LCと名付けた「二重遺伝子」発現プラスミド(図14)を、2個の前駆体プラスミドpCD-HC-IDUAおよびpCD-LCから操作し、AfeIによりpCD-HC-IDUAを線状化後、NruIおよびAfeIでLC発現カセットを放出させ、T4リガーゼで新たなプラスミドを閉環した(図14に示す)。
(2) TV-HIRMAb-IDUAと名付けた「三重遺伝子」タンデムベクター(TV)発現プラスミド(図14)を2個の前駆体プラスミド、pCD-HC-IDUA-LC、および野生型(wt)ネズミジヒドロ葉酸還元酵素(DHFR)をコードするpwtDHFRから操作した。DHFR発現カセットをSmaIおよびSalIを用いてpwtDHFRから放出させた。SalIの末端をT4 DNAポリメラーゼおよびデオキシヌクレオチド三リン酸で充填した。平行して、pCD-HC-IDUA-LCをAfeIで開いた。新しいTVをT4リガーゼで閉環した。
714ntサイトメガロウイルス(CMV)プロモーター
9 nt Kozak配列 (GCCGCCACC)
HIRMAb HCおよびIDUAの融合遺伝子をコードする3,276 ntオープンリーディングフレーム (orf)
297 ntウシ成長ホルモン(BGH)ポリA (pA)配列
23 ntリンカー
731 nt CMVプロモーター
9 nt Kozak配列
HIRM Ab LCをコードする705 orf
291 nt BGH pA
254 SV40プロモーター
9 nt Kozak配列
564ネズミDHFR orf
940 B型肝炎ウイルス(HBV) pA
DG44チャイニーズハムスター卵巣(CHO)細胞を、1 x HT添加物(ヒポキサンチンおよびチミジン)を含む血清不含HyQ SFM4CHOユーティリティ(多用途)培地(HyClone)で増殖させた。DG44 CHO細胞(5 x 106生細胞)を、5μg PvuI線状化TV-HIRMAb-IDUAプラスミドDNAでエレクトロポーレーションした。次に、細胞-DNAサスペンジョンを氷上で10分間インキュベーションした。細胞を、CHO細胞のためのBioRadプリセットプロトコール、すなわち160ボルトおよびパルス15msecの方形波でエレクトロポーレーションする。エレクトロポーレーション後、細胞を氷上で10分間インキュベーションする。細胞サスペンジョンを50mL培養液に移し、4 x 96ウェルプレートに125μl/ウェル(10,000細胞/ウェル)で播く。合計10エレクトロポーレーションおよび4,000ウェルを1試験について実施する。
第二回の希釈クローニング後、最高値のHIRMAb-IDUA融合タンパク質を分泌する細胞系を、無血清培地でオービタルシェーカー上のいくつかの1L四角プラスチックボトル中総容量2,000mLに増殖させた。HIRMAb-IDUA融合タンパク質を以下の下流処理を行ってCHO細胞順化培地から精製した:
・ 0.05m2 0.2μm Sartopore-2限外濾過と直列にした0.2m2 0.65μm GFフィルターで深層濾過。
・ 接線流濾過(TFF)システムを用いて容量を400mLに減少。
・ 0.2mm限外濾過装置で限外濾過し、Protein A Sepharose4 Fast Flowカラムに適用。カラムに適用後、カラムを1M NaClで溶出し、カラムに非特異的に吸着したDNAを溶出し、生成物を0.1M酢酸ナトリウム/pH=3.7で単一ピークとして溶出する(図15A)。酸溶出物を1Mトリス塩基で中和し、Centriprep-30で5mLに濃縮する。
・ 結合溶出モード(bind-elute mode)の陽イオン交換(CATEX)クロマトグラフィーは、0.02M MESおよび0.05M NaClで平衡化したSP Sepharose FFカラムを用いて行った。
・ 試料の伝導度は、該カラムに適用する前に<5mS/cmに低下した。該カラムを、0.25M NaCl、0.35M NaCl、0.5M NaCl、および1M NaClを含む0.02M MES/pH=5.5の段階勾配で連続して溶出した。図15Bに示すように、HIRMAb-IDUA融合タンパク質は0.5M NaClで溶出された。
・ フロースルーモードの陰イオン交換(ANEX)クロマトグラフィーを、0.025M MES/pH=5.5および0.05M NaClで平衡化したQ Sepharose FFカラムを用いて行った。試料の伝導度は<7mS/cmに低下した。図15Cに示すようにHIRMAb-IDUA融合タンパク質はフロースルーに溶出された。
(a)SDS-PAGE。CHO由来HIRMAb-IDUA融合タンパク質は、図16(レーン3)に示すように、還元ドデシル硫酸ナトリウムポリアクリルアミドゲル電気泳動 (SDS-PAGE)に基づいて精製し、均一とした。キメラHIRMAbは図16のレーン2に適用し、HIRMAb-IDUA融合タンパク質は図16のレーン3に適用している。両タンパク質の軽鎖(LC)の大きさは両タンパク質が同じLCからなるので同じである。HIRMAb-IDUA融合タンパク質の重鎖(HC)の大きさは130kDa(レーン3。図16)であるが、キメラHIRMAbのHCの大きさは50kDa (レーン2、図16)であり、大きさの違いは該キメラHIRMAbのHCに80kDaのIDUAが融合していることによる。
Claims (51)
- 治療的有効量のα-L-イデュロニダーゼ活性を有する融合抗体を対象に全身投与することを含む、中枢神経系のα-L-イデュロニダーゼ欠損症を治療する必要がある対象の中枢神経系のα-L-イデュロニダーゼ欠損症の治療方法であって、
(i) 治療的有効量の少なくとも約0.5%が脳に送達され、
(ii) 該融合抗体が、(a) 免疫グロブリン重鎖とα-L-イデュロニダーゼのアミノ酸配列を含む融合タンパク質、および(b)免疫グロブリン軽鎖を含み、
(iii)該融合抗体がヒトインスリンレセプターの細胞外ドメインと結合し、デルマタン硫酸中の非硫酸化α-L-イデュロノシド結合の加水分解を触媒し、
(iv) α-L-イデュロニダーゼのアミノ酸配列が免疫グロブリン重鎖のアミノ酸配列のカルボキシ末端に共有結合する、方法。 - 少なくとも約25,000単位のα-L-イデュロニダーゼ活性が脳に送達される、請求項1記載の方法。
- 治療的有効量が少なくとも約1 x 106単位のα-L-イデュロニダーゼ活性または少なくとも約140,000単位/Kg体重である請求項1記載の方法。
- 該融合抗体のIDUA特異活性が少なくとも200,000単位/mgである請求項1記載の方法。
- 全身投与が、非経口的、静脈内、皮下、筋肉内、経鼻、動脈内、経皮、または経気道的である請求項1記載の方法、該送達が全身投与後2時間またはそれ以内に起きる請求項1記載の方法、該融合抗体がキメラ抗体である請求項1記載の方法。
- 免疫グロブリン重鎖が、4個以下の単一アミノ酸突然変異を有する配列番号1のアミノ酸配列に対応するCDR1、6個以下の単一アミノ酸突然変異を有する配列番号2のアミノ酸配列に対応するCDR2、または3個以下の単一アミノ酸突然変異を有する配列番号3のアミノ酸配列に対応するCDR3を含み、単一アミノ酸突然変異が置換、欠失、または挿入である請求項1記載の方法。
- 免疫グロブリン重鎖が、3個以下の単一アミノ酸突然変異を有する配列番号1のアミノ酸配列に対応するCDR1、6個以下の単一アミノ酸突然変異を有する配列番号2のアミノ酸配列に対応するCDR2、および3個以下の単一アミノ酸突然変異を有する配列番号3のアミノ酸配列に対応するCDR3を含む請求項6記載の方法。
- 免疫グロブリン重鎖が、配列番号1のアミノ酸配列に対応するCDR1、配列番号2のアミノ酸配列に対応するCDR2、または配列番号3のアミノ酸配列に対応するCDR3を含む請求項7記載の方法。
- 免疫グロブリン軽鎖が、3個以下の単一アミノ酸突然変異を有する配列番号4のアミノ酸配列に対応するCDR1、5個以下の単一アミノ酸突然変異を有する配列番号5のアミノ酸配列に対応するCDR2、または5個以下の単一アミノ酸突然変異を有する配列番号6のアミノ酸配列に対応するCDR3を含み、単一アミノ酸突然変異が置換、欠失、または挿入である請求項1記載の方法。
- 免疫グロブリン軽鎖が、配列番号4のアミノ酸配列に対応するCDR1、配列番号5のアミノ酸配列に対応するCDR2、または配列番号6のアミノ酸配列に対応するCDR3を含む請求項9記載の方法。
- 重鎖免疫グロブリンのアミノ酸配列が配列番号7と少なくとも90%同一であり、軽鎖免疫グロブリンのアミノ酸配列が配列番号8と少なくとも90%同一である請求項10記載の方法。
- 重鎖免疫グロブリンのアミノ酸配列が配列番号7を含み、軽鎖免疫グロブリンのアミノ酸配列が配列番号8を含む請求項11記載の方法。
- α-L-イデュロニダーゼが配列番号9と少なくとも90%同一なアミノ酸を含む請求項1記載の方法。
- アミノ酸配列が配列番号9と少なくとも95%同一である請求項13記載の方法。
- アミノ酸配列が配列番号9を含む請求項14記載の方法。
- 重鎖免疫グロブリンのアミノ酸配列が配列番号7と少なくとも90%同一であり、軽鎖免疫グロブリンのアミノ酸配列が配列番号8と少なくとも90%同一であり、α-L-イデュロニダーゼのアミノ酸配列が配列番号9と少なくとも95%同一である請求項1記載の方法。
- 治療的有効量のα-L-イデュロニダーゼ活性を有する融合抗体を対象に全身投与することを含む、中枢神経系のα-L-イデュロニダーゼ欠損症を治療する必要がある対象の中枢神経系のα-L-イデュロニダーゼ欠損症の治療方法であって、
(i) 治療的有効量の少なくとも約0.5%が脳に送達され、
(ii) 該融合抗体が (a)配列番号10と少なくとも95%同一な融合タンパク質、および(b) 免疫グロブリン軽鎖を含み、
(iii)該融合抗体がヒトインスリンレセプターの細胞外ドメインと結合し、デルマタン硫酸中の非硫酸化α-L-イデュロノシド結合の加水分解を触媒する、方法。 - 少なくとも約25,000単位のα-L-イデュロニダーゼ活性が脳に送達される請求項17記載の方法。
- 該治療的有効量が、少なくとも約1 x 106単位のα-L-イデュロニダーゼ活性、または少なくとも約140,000単位のα-L-イデュロニダーゼ活性/Kg体重を含む請求項17記載の方法。
- 該融合抗体のIDUA特異活性が少なくとも約200,000単位/mgである請求項17記載の方法。
- 該全身投与が、非経口的、静脈内、皮下、筋肉内、経鼻、動脈内、経皮、または経気道的である請求項17記載の方法。
- 該送達が全身投与後2時間またはそれ以内に生じる請求項17記載の方法。
- 該融合抗体はキメラ抗体である請求項17記載の方法。
- 該免疫グロブリン軽鎖が、3個以下の単一アミノ酸突然変異を有する配列番号4のアミノ酸配列に対応するCDR1、5個以下の単一アミノ酸突然変異を有する配列番号5のアミノ酸配列に対応するCDR2、または5個以下の単一アミノ酸突然変異を有する配列番号6のアミノ酸配列に対応するCDR3を含み、単一アミノ酸突然変異が置換、欠失、または挿入である請求項17記載の方法。
- 該免疫グロブリン軽鎖が、配列番号4のアミノ酸配列に対応するCDR1、配列番号5のアミノ酸配列に対応するCDR2、または配列番号6のアミノ酸配列に対応するCDR3を含む請求項24記載の方法。
- 治療的有効量の、α-L-イデュロニダーゼ活性を有する融合抗体を対象に全身投与することを含む、中枢神経系α-L-イデュロニダーゼ欠損症の治療を必要とする対象の中枢神経系のα-L-イデュロニダーゼ欠損症の治療方法であって、
(i) 治療的有効量の少なくとも約0.5%が脳に送達され、
(ii) 該融合抗体が免疫グロブリン重鎖とα-L-イデュロニダーゼのアミノ酸配列を含む融合タンパク質、または免疫グロブリン軽鎖とα-L-イデュロニダーゼのアミノ酸配列を含む融合タンパク質を含み、ヒトインスリンレセプターの細胞外ドメインと結合し、デルマタン硫酸中の非硫酸化α-L-イデュロノシド結合の加水分解を触媒し;
(iii) α-L-イデュロニダーゼのアミノ酸配列が免疫グロブリン重鎖または免疫グロブリン軽鎖のアミノ酸配列のカルボキシ末端と共有結合する、方法。 - 該融合抗体が免疫グロブリン重鎖と免疫グロブリン軽鎖を含む請求項26記載の融合抗体。
- 該融合タンパク質が免疫グロブリン重鎖とα-L-イデュロニダーゼのアミノ酸配列を含む請求項26記載の方法。
- 少なくとも約25,000単位のα-L-イデュロニダーゼ活性が脳に送達される請求項26記載の方法。
- 治療的有効量が、少なくとも約1 x 106単位のα-L-イデュロニダーゼ活性または少なくとも約140,000単位のα-L-イデュロニダーゼ活性/Kg体重を含む請求項26記載の方法。
- 該融合抗体のIDUA特異活性が約200,000単位/mgである請求項26記載の方法。
- 全身投与が、非経口的、静脈内、皮下、筋肉内、経鼻、動脈内、経皮、または経気道的である請求項26記載の方法。
- 該送達が全身投与後2時間またはそれ以内に生じる請求項26記載の方法。
- 該融合抗体はキメラ抗体である請求項26記載の方法。
- 該免疫グロブリン重鎖が、4個以下の単一アミノ酸突然変異を有する配列番号1のアミノ酸配列に対応するCDR1、6個以下の単一アミノ酸突然変異を有する配列番号2のアミノ酸配列に対応するCDR2、または3個以下の単一アミノ酸突然変異を有する配列番号3のアミノ酸配列に対応するCDR3を含み、単一アミノ酸突然変異が置換、欠失、または挿入である請求項26記載の方法。
- 該免疫グロブリン重鎖が、3個以下の単一アミノ酸突然変異を有する配列番号1のアミノ酸配列に対応するCDR1、6個以下の単一アミノ酸突然変異を有する配列番号2のアミノ酸配列に対応するCDR2、および3個以下の単一アミノ酸突然変異を有する配列番号3のアミノ酸配列に対応するCDR3を含む請求項35記載の方法。
- 該免疫グロブリン重鎖が、配列番号1のアミノ酸配列に対応するCDR1、配列番号2のアミノ酸配列に対応するCDR2、または配列番号3のアミノ酸配列に対応するCDR3を含む請求項35記載の方法。
- 該免疫グロブリン重鎖が、配列番号1のアミノ酸配列に対応するCDR1、配列番号2のアミノ酸配列に対応するCDR2、および配列番号3のアミノ酸配列に対応するCDR3を含む請求項37記載の方法。
- 該免疫グロブリン軽鎖が、3個以下の単一アミノ酸突然変異を有する配列番号4のアミノ酸配列に対応するCDR1、5個以下の単一アミノ酸突然変異を有する配列番号5のアミノ酸配列に対応するCDR2、または5個以下の単一アミノ酸突然変異を有する配列番号6のアミノ酸配列に対応するCDR3を含み、単一アミノ酸突然変異が置換、欠失、または挿入である請求項26記載の方法。
- 該免疫グロブリン軽鎖が、3個以下の単一アミノ酸突然変異を有する配列番号4のアミノ酸配列に対応するCDR1、5個以下の単一アミノ酸突然変異を有する配列番号5のアミノ酸配列に対応するCDR2、および5個以下の単一アミノ酸突然変異を有する配列番号6のアミノ酸配列に対応するCDR3を含む請求項39記載の方法。
- 免疫グロブリン軽鎖が、配列番号4のアミノ酸配列に対応するCDR1、配列番号5のアミノ酸配列に対応するCDR2、または配列番号6のアミノ酸配列に対応するCDR3を含む請求項39記載の方法。
- 免疫グロブリン重鎖が、配列番号1のアミノ酸配列に対応するCDR1、配列番号2のアミノ酸配列に対応するCDR2、および配列番号3のアミノ酸配列に対応するCDR3を含み、免疫グロブリン軽鎖が、配列番号4のアミノ酸配列に対応するCDR1、配列番号5のアミノ酸配列に対応するCDR2、および配列番号6のアミノ酸配列に対応するCDR3を含む請求項27記載の方法。
- 重鎖免疫グロブリンのアミノ酸配列が配列番号7と少なくとも90%同一であり、軽鎖免疫グロブリンのアミノ酸配列が配列番号8と少なくとも90%同一である請求項27記載の方法。
- 重鎖免疫グロブリンのアミノ酸配列が配列番号7を含み、軽鎖免疫グロブリンのアミノ酸配列が配列番号8を含む請求項43記載の方法。
- α-L-イデュロニダーゼが配列番号9と少なくとも90%同一なアミノ酸を含む請求項26記載の方法。
- アミノ酸配列が配列番号9と少なくとも95%同一である請求項45記載の方法。
- アミノ酸配列が配列番号9を含む請求項46記載の方法。
- 重鎖免疫グロブリンのアミノ酸配列が配列番号7と少なくとも90%同一であり、軽鎖免疫グロブリンのアミノ酸配列が配列番号8と少なくとも90%同一であり、α-L-イデュロニダーゼのアミノ酸配列が配列番号9と少なくとも95%同一である請求項27記載の方法。
- 重鎖免疫グロブリンのアミノ酸配列が配列番号7を含み、軽鎖免疫グロブリンのアミノ酸配列が配列番号8を含み、α-L-イデュロニダーゼのアミノ酸配列が配列番号9を含む請求項48記載の方法。
- 該融合タンパク質のアミノ酸配列が配列番号10と少なくとも95%同一である請求項26記載の方法。
- 該融合タンパク質のアミノ酸配列が配列番号10を含む請求項50記載の方法。
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AU2008282496B2 (en) | 2013-04-04 |
JP2023099190A (ja) | 2023-07-11 |
JP2017095464A (ja) | 2017-06-01 |
JP6412731B2 (ja) | 2018-10-24 |
US8974791B2 (en) | 2015-03-10 |
CA3184105A1 (en) | 2009-02-05 |
US20150299328A1 (en) | 2015-10-22 |
JP5901877B2 (ja) | 2016-04-13 |
EP2182980A2 (en) | 2010-05-12 |
AU2008282496A1 (en) | 2009-02-05 |
US20230279156A1 (en) | 2023-09-07 |
US20090053219A1 (en) | 2009-02-26 |
CA2694762A1 (en) | 2009-02-05 |
US20170114152A1 (en) | 2017-04-27 |
JP2021176889A (ja) | 2021-11-11 |
WO2009018122A2 (en) | 2009-02-05 |
JP2019055967A (ja) | 2019-04-11 |
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