JP2019509748A - 組換えタンパク質及び/又はウイルスベクター製造のための細胞株 - Google Patents
組換えタンパク質及び/又はウイルスベクター製造のための細胞株 Download PDFInfo
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Abstract
【選択図】 図2
Description
この実施例は、発明のHEK細胞及び細胞株の製造、並びにそれに続くウイルスゲノムの移動及びウイルス(AAV)ベクターの製造を記載する。
この実施例は、発明のHEK細胞及び細胞株のある非限定的な特徴を説明する。
A. 安定なプロデューサーのクローン。
B. DHFR及び/又はGS遺伝子がノックアウトされたヒト哺乳動物の製造細胞クローンは、DHFR又はGS遺伝子(又は両方)を選択マーカーとして使用して、目的の遺伝子を発現する安定なクローンの選択を可能にし、クローンは、任意の目的の遺伝子、又はウイルスベクターを創出することができること。
C. 高い生産性を提供する遺伝子増幅機能を有する生物学的産生物を産生するために適当なヒト細胞株のより安定な産生。
D. 創出された細胞株のDHFR及び/又はGS陰性のゲノムのバックグラウンドが、目的の遺伝子の遺伝子増幅を可能にし、そのために高い特異的生産性に結びつくこと。
E. 混入のないゲノムバックグラウンド、陽性のプロデューサークローンを選択するための抗生物質マーカーを導入する必要がないこと、そのために、組換えタンパク質、rAAVベクターなどのウイルスベクターを製造する、より安定なクローン。
F. 大幅に低下した労働コスト及び材料コスト。
A. 向上したrAAV収率
B. 大量の産生/大規模のrAAV産生のための規模拡大の容易さ。
C. ヘルパーウイルスの関与する産生系、例えばアデノウイルスをヘルパーとして使用する産生系、又はバキュロウイルスに基づく産生系と比較してより安定な産生系。
D. 空の粒子を減少させてrAAVベクター中にパッケージングされたDNA不純物を減少させることにより、空のカプシドの量が少ないrAAVベクターを産生すること。
E. ある細胞クローン、同定された高いrAAVhFixプロデューサークローンについて達成されたrAAVゲノムの高いコピー数。
F. rAAVhFixゲノムを用いるDHFR/GSの二重ノックインがrAAVhFixゲノムの実質的増幅を可能にし、そのために高いrAAV産生に結びつくこと。
A. HEK、ヒトA459及び/又はベロ細胞及び細胞株は、生物学的産生物を、ヒトで産生させるときに、その自然のままの状態にさらに近く折りたたんで改変することができて、そのために、HEK、ヒトA459及び/又はベロ細胞及び細胞株からの生成物の産生は、より安定で、より強くなること。
B. HEK(例えば、HEK293)及びA549細胞はヒト細胞株であり、別の非ヒト種のものではないので、HEK(例えば、創出されたHEK293DHFR−/−/GS−/−細胞のクローン)、及び/又はヒトA459から産生した生物学的産生物は、人体からのその天然生成物にさらに近い翻訳後の改変を可能にすること。
[0001]本出願は、2016年3月30日出願の米国特許仮出願第62/315,480号に対する優先権を主張する。前述の出願の全内容は、本文、表、配列表及び図面の全てを含めて参照により本明細書に組み込まれる。
Claims (47)
- 機能的な内因性ジヒドロ葉酸レダクターゼ(DHFR)及び/又はグルタミンシンテターゼ(GS)を発現しないヒト胚腎臓(HEK)細胞。
- 機能的な内因性ジヒドロ葉酸レダクターゼ(DHFR)及び/又はグルタミンシンテターゼ(GS)を発現しないヒト胚腎臓(HEK)細胞株。
- 第1の異種核酸配列で安定に又は一過性にトランスフェクトされ、任意選択で、第2の異種核酸配列で安定に又は一過性にトランスフェクトされた、請求項1又は2に記載のHEK細胞又は細胞株。
- 第1の異種核酸配列及び第1の選択可能なマーカーで安定に又は一過性にトランスフェクトされ、任意選択で、第2の異種核酸配列及び第2の選択可能なマーカーで安定に又は一過性にトランスフェクトされた、請求項1又は2に記載のHEK細胞又は細胞株。
- 前記第1の異種核酸配列が、治療用タンパク質又はポリヌクレオチド配列をコードし、任意選択の第2の異種核酸配列が、治療用タンパク質又はポリヌクレオチド配列をコードする、請求項3又は4に記載のHEK細胞又は細胞株。
- 前記第1の異種核酸配列によりコードされた前記治療用タンパク質又はポリヌクレオチド配列と、前記任意選択の第2の異種核酸配列によりコードされた前記治療用タンパク質又はポリヌクレオチド配列とが、同じであるか又は異なる、請求項4に記載のHEK細胞又は細胞株。
- 前記第1の又は第2の選択可能なマーカーが、抗生物質に対する耐性を提供しない、請求項4に記載のHEK細胞又は細胞株。
- 前記第1の又は第2の選択可能なマーカーが、前記第1の及び/又は第2の異種核酸配列を増幅する手段を提供する、請求項4に記載のHEK細胞又は細胞株。
- 前記第1の又は第2の選択可能なマーカーが、DHFR機能を有するタンパク質をコードする核酸を含む、請求項4に記載のHEK細胞又は細胞株。
- 前記第1の又は第2の選択可能なマーカーが、GS機能を有するタンパク質をコードする核酸を含む、請求項4に記載のHEK細胞又は細胞株。
- 前記第1の選択可能なマーカーが、DHFR機能を有するタンパク質をコードする核酸を含み、前記第2の選択可能なマーカーが、GS機能を有するタンパク質をコードする核酸を含む、請求項4に記載のHEK細胞又は細胞株。
- 前記第1の異種核酸配列が第1のベクターを含み、前記任意選択の第2の異種核酸配列が第2のベクターを含む、請求項3〜11のいずれか一項に記載のHEK細胞又は細胞株。
- 前記第1のベクターと任意選択の第2のベクターとが、同じであるか又は異なる、請求項11又は12に記載のHEK細胞又は細胞株。
- 前記第1のベクター及び任意選択の第2のベクターが、DHFR機能を有するタンパク質をコードする核酸又はGS機能を有するタンパク質をコードする核酸を含む選択可能なマーカーを各々含む、請求項11又は12に記載のHEK細胞又は細胞株。
- 前記第1のベクターが第1のウイルスベクターを含み、任意選択の第2のベクターが第2のウイルスベクターを含む、請求項12〜14のいずれか一項に記載のHEK細胞又は細胞株。
- 前記第1の又は第2のウイルスベクターが、AAVベクターゲノムを含む、請求項12〜14のいずれか一項に記載のHEK細胞又は細胞株。
- AAVベクターゲノムを各々含む、第1の及び第2のウイルスベクターを含む、請求項12〜14のいずれか一項に記載のHEK細胞又は細胞株。
- 前記AAVベクターゲノムが、前記異種核酸配列の5’及び/又は3’末端に隣接する1つ又は2つのAAVのITRを含む、請求項17に記載のHEK細胞又は細胞株。
- 前記HEK細胞又は細胞株中における前記異種核酸配列及び/又はベクター及び/又はウイルスベクター及び/又はAAVベクターゲノムのコピー数が、細胞1つ当たり1〜5コピー、細胞1つ当たり5〜10コピー、10〜50コピー/細胞、細胞1つ当たり50〜100コピー、細胞1つ当たり100〜250コピー、細胞1つ当たり250〜500コピー、細胞1つ当たり500〜1,000コピー、細胞1つ当たり1,000〜2,000コピー、又は細胞1つ当たり約2,000、3,000、4,000若しくは5,000コピーであるか若しくはそれよりも多い、任意選択で、コピー数は、多くの継代、例えば、少なくとも5又はそれを超えて、10、15又はそれを超える継代にわたって安定であると思われる、請求項4〜18のいずれか一項に記載のHEK細胞又は細胞株。
- 前記HEK細胞又は細胞株中における前記AAVベクターゲノムのコピー数が、細胞1つ当たり少なくとも1,000コピーであり、前記rAAVベクター粒子の収率が、HEK細胞又は前記HEK細胞株のローラーボトルから、任意選択で少なくとも1×108vg/ml、又は少なくとも1×109vg/ml、又は少なくとも1×1010vg/ml、又は少なくとも1×1011vg/ml又は少なくとも2×1011vg/mlである、請求項16〜19のいずれか一項に記載のHEK細胞又は細胞株。
- AAVのrep及び/又はcap配列をさらに含む、請求項1〜20のいずれか一項に記載のHEK細胞又は細胞株。
- 前記AAVのrep及び/又はcap配列が、一過性に又は安定にのいずれかで前記HEK細胞又は細胞株にトランスフェクトされたプラスミドにより提供される、請求項20に記載のHEK細胞又は細胞株。
- AAVヘルパー機能配列をさらに含む、請求項1〜22のいずれか一項に記載のHEK細胞又は細胞株。
- HEK293である、請求項1〜23のいずれか一項に記載のHEK細胞又は細胞株。
- 培養培地又は成長培地中の、又は長期貯蔵に適当な培地中の、請求項1〜24のいずれか一項に記載のHEK細胞又は細胞株。
- メトトレキセート(MTX)及び/又はメチオニンスルホキサミン(MSX)を含む培養培地又は成長中の、請求項9〜25のいずれか一項に記載のHEK細胞又は細胞株。
- 前記異種核酸配列をパッケージングされたrAAVベクター粒子を産生する、請求項6〜26のいずれか一項に記載のHEK細胞又は細胞株。
- 前記rAAVベクター粒子が、機能的な内因性DHFR及び/又はGSを発現し、前記異種核酸配列を有するAAVベクターゲノムで一過性にトランスフェクトされたHEK293細胞により産生される量を超える量で、産生される、請求項27に記載のHEK細胞又は細胞株。
- 産生された前記AAVベクター粒子が、AAVの空のカプシド及び/又は機能的な内因性DHFR及び/又はGSを発現しており、前記異種核酸配列を有するrAAVベクターゲノムで一過性にトランスフェクトされたHEK293細胞により産生された混入DNAをパッケージングしているrAAV粒子の量よりも少ない量のrAAVの空のカプシド、及び/又はそれよりも少ない量の混入DNAをパッケージングしているrAAV粒子を含有する、請求項27に記載のHEK細胞又は細胞株。
- 前記異種核酸配列が、治療用タンパク質又は阻害性核酸配列をコードする、請求項3〜29のいずれか一項に記載のHEK細胞又は細胞株。
- 前記治療用タンパク質が、血液凝固因子又は免疫グロブリン配列を含む、請求項30に記載のHEK細胞又は細胞株。
- 前記阻害性核酸配列が、小さい若しくは短いヘアピン(sh)RNA、ミクロRNA(miRNA)、小さい若しくは短い干渉(si)RNA、trans−スプライシングRNA、又はアンチセンスRNAを含む、請求項30に記載のHEK細胞又は細胞株。
- 前記第1の異種核酸配列を安定にトランスフェクトされた、請求項3〜32のいずれか一項に記載のHEK細胞又は細胞株。
- 前記第1の及び前記第2の異種核酸配列を安定にトランスフェクトされた、請求項3〜32のいずれか一項に記載のHEK細胞又は細胞株。
- 請求項15〜34のいずれか一項に記載のHEK細胞又は細胞株から単離された又は精製されたウイルス粒子又はrAAVベクター粒子。
- 請求項5〜34のいずれか一項に記載のHEK細胞又は細胞株から単離された又は精製された治療用タンパク質。
- 治療用タンパク質、ウイルスベクター又はrAAVベクター粒子を製造する方法であって、請求項5〜34のいずれか一項に記載のHEK細胞又は細胞株を、前記治療用タンパク質、ウイルスベクター又はrAAVベクター粒子の産生及び/又は分泌を可能にする条件下で培養して、前記治療用タンパク質、ウイルスベクター又はrAAVベクター粒子を、前記細胞培養物、培養培地、又は細胞培養物及び培養培地から単離又は精製するステップを含む、方法。
- rAAVベクター粒子を製造する方法であって、請求項23〜25のいずれか一項に記載のHEK細胞又は細胞株を、前記rAAVベクター粒子の産生及び/又は分泌を可能にする条件下で培養して、前記rAAVベクター粒子を、前記細胞培養物、培養培地、又は細胞培養物及び培養培地から単離又は精製するステップを含み、前記HEK細胞又は細胞株が、細胞1つ当たり少なくとも1,000コピーのAAVベクターゲノムを有する場合、前記rAAVベクター粒子の収率は、HEK細胞又は前記HEK細胞株の少なくとも2×1011vg/ローラーボトルである、方法。
- 前記第1の及び/又は第2の異種核酸配列が、インスリン、グルカゴン、成長ホルモン(GH)、副甲状腺ホルモン(PTH)、成長ホルモン放出因子(GRF)、卵胞刺激ホルモン(FSH)、黄体形成ホルモン(LH)、ヒト絨毛膜性腺刺激ホルモン(hCG)、血管内皮成長因子(VEGF)、アンジオポエチン、アンジオスタチン、顆粒球コロニー刺激因子(GCSF)、エリスロポエチン(EPO)、結合組織成長因子(CTGF)、塩基性線維芽細胞増殖因子(bFGF)、酸性線維芽細胞増殖因子(aFGF)、上皮成長因子(EGF)、トランスフォーミング成長因子α(TGFα)、血小板由来成長因子(PDGF)、インスリン様成長因子I及びII(IGF−I及びIGF−II)、TGFβ、アクチビン、インヒビン、骨形成タンパク質(BMP)、神経成長因子(NGF)、脳由来神経栄養因子(BDNF)、ニューロトロフィンNT−3及びNT4/5、毛様体神経栄養因子(CNTF)、グリア細胞株由来神経栄養因子(GDNF)、ニュールツリン、アグリン、ネトリン−1及びネトリン−2、肝細胞成長因子(HGF)、エフリン、ノギン、ソニックヘッジホッグ並びにチロシンヒドロキシラーゼからなる群から選択される遺伝子生成物をコードする、請求項3〜38のいずれか一項に記載のHEK細胞若しくは細胞株又は方法。
- 前記rAAVベクター粒子が、インスリン、グルカゴン、成長ホルモン(GH)、副甲状腺ホルモン(PTH)、成長ホルモン放出因子(GRF)、卵胞刺激ホルモン(FSH)、黄体形成ホルモン(LH)、ヒト絨毛膜性腺刺激ホルモン(hCG)、血管内皮成長因子(VEGF)、アンジオポエチン、アンジオスタチン、顆粒球コロニー刺激因子(GCSF)、エリスロポエチン(EPO)、結合組織成長因子(CTGF)、塩基性線維芽細胞増殖因子(bFGF)、酸性線維芽細胞増殖因子(aFGF)、上皮成長因子(EGF)、トランスフォーミング成長因子α(TGFα)、血小板由来成長因子(PDGF)、インスリン様成長因子I及びII(IGF−I及びIGF−II)、TGFβ、アクチビン、インヒビン、骨形成タンパク質(BMP)、神経成長因子(NGF)、脳由来神経栄養因子(BDNF)、ニューロトロフィンNT−3及びNT4/5、毛様体神経栄養因子(CNTF)、グリア細胞株由来神経栄養因子(GDNF)、ニュールツリン、アグリン、ネトリン−1及びネトリン−2、肝細胞成長因子(HGF)、エフリン、ノギン、ソニックヘッジホッグ並びにチロシンヒドロキシラーゼからなる群から選択される遺伝子生成物をコードする前記第1の及び/又は前記第2の異種核酸配列を含む、請求項23〜29、37又は38のいずれか一項に記載のHEK細胞若しくは細胞株又は方法。
- 前記第1の及び/又は第2の異種核酸配列が、トロンボポエチン(TPO)、インターロイキン(IL1〜IL−17)、単球走化性タンパク質、白血病阻止因子、顆粒球−マクロファージコロニー刺激因子、Fasリガンド、腫瘍壊死因子α及びβ、インターフェロンα、β、及びγ、幹細胞因子、flk−2/flt3リガンド、IgG、IgM、IgA、IgD及びIgE、キメラ免疫グロブリン、ヒト化抗体、単鎖抗体、T細胞受容体、キメラT細胞受容体、単鎖T細胞受容体、クラスI及びクラスIIのMHC分子からなる群から選択される遺伝子生成物をコードする、請求項3〜38のいずれか一項に記載のHEK細胞若しくは細胞株又は方法。
- 前記rAAVベクター粒子が、トロンボポエチン(TPO)、インターロイキン(IL1〜IL−17)、単球走化性タンパク質、白血病阻止因子、顆粒球−マクロファージコロニー刺激因子、Fasリガンド、腫瘍壊死因子α及びβ、インターフェロンα、β、及びγ、幹細胞因子、flk−2/flt3リガンド、IgG、IgM、IgA、IgD及びIgE、キメラ免疫グロブリン、ヒト化抗体、単鎖抗体、T細胞受容体、キメラT細胞受容体、単鎖T細胞受容体、クラスI及びクラスIIのMHC分子からなる群から選択される遺伝子生成物をコードする前記第1の及び/又は前記第2の異種核酸配列を含む、請求項23〜29、37又は38のいずれか一項に記載のHEK細胞若しくは細胞株又は方法。
- 前記第1の及び/又は第2の異種核酸配列が、カルバモイルシンテターゼI、オルニチントランスカルバミラーゼ、アルギノスクシネートシンテターゼ、アルギノスクシネートリアーゼ、アルギナーゼ、フマリルアセトアセテートヒドロラーゼ、フェニルアラニンヒドロキシラーゼ、アルファ−1アンチトリプシン、グルコース−6−ホスファターゼ、ポルホビリノーゲンデアミナーゼ、第V因子、第VIII因子、第IX因子、シスタチオンベータ−シンターゼ、分岐鎖ケト酸デカルボキシラーゼ、アルブミン、イソバレリル−coAデヒドロゲナーゼ、プロピオニルCoAカルボキシラーゼ、メチルマロニルCoAムターゼ、グルタリルCoAデヒドロゲナーゼ、インスリン、ベータ−グルコシダーゼ、ピルベートカルボキシレート、肝ホスホリラーゼ、ホスホリラーゼキナーゼ、グリシンデカルボキシラーゼ、RPE65、H−タンパク質、T−タンパク質、嚢胞性線維症膜貫通制御因子(CFTR)配列、及びジストロフィンcDNA配列からなる群から選択される、先天性のエラーの修正に有用なタンパク質をコードする、請求項3〜38のいずれか一項に記載のHEK細胞若しくは細胞株又は方法。
- 前記rAAVベクター粒子が、カルバモイルシンテターゼI、オルニチントランスカルバミラーゼ、アルギノスクシネートシンテターゼ、アルギノスクシネートリアーゼ、アルギナーゼ、フマリルアセトアセテートヒドロラーゼ、フェニルアラニンヒドロキシラーゼ、アルファ−1アンチトリプシン、グルコース−6−ホスファターゼ、ポルホビリノーゲンデアミナーゼ、第V因子、第VIII因子、第IX因子、シスタチオンベータ−シンターゼ、分岐鎖ケト酸デカルボキシラーゼ、アルブミン、イソバレリル−coAデヒドロゲナーゼ、プロピオニルCoAカルボキシラーゼ、メチルマロニルCoAムターゼ、グルタリルCoAデヒドロゲナーゼ、インスリン、ベータ−グルコシダーゼ、ピルベートカルボキシレート、肝ホスホリラーゼ、ホスホリラーゼキナーゼ、グリシンデカルボキシラーゼ、RPE65、H−タンパク質、T−タンパク質、嚢胞性線維症膜貫通制御因子(CFTR)配列、及びジストロフィンcDNA配列からなる群から選択される、先天性のエラーの修正に有用なタンパク質をコードする前記第1の及び/又は前記第2の異種核酸配列を含む、請求項23〜29、37又は38のいずれか一項に記載のHEK細胞若しくは細胞株又は方法。
- 機能的な内因性ジヒドロ葉酸レダクターゼ(DHFR)を発現しないヒト胚腎臓(HEK)細胞株を製造する方法であって、前記内因性DHFR遺伝子を突然変異させるか又はノックアウトするステップを含む、方法。
- 機能的な内因性グルタミンシンテターゼ(GS)を発現しないヒト胚腎臓(HEK)細胞株を製造する方法であって、前記内因性GS遺伝子を突然変異させるか又はノックアウトするステップを含む、方法。
- 機能的な内因性ジヒドロ葉酸レダクターゼ(DHFR)及びグルタミンシンテターゼ(GS)を発現しないヒト胚腎臓(HEK)細胞株を製造する方法であって、前記内因性DHFR遺伝子及びGS遺伝子を突然変異させるか又はノックアウトするステップを含む、方法。
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BR112017009497A2 (pt) | 2014-11-05 | 2018-02-06 | Voyager Therapeutics, Inc. | polinucleotídeos de aadc para o tratamento da doença de parkinson |
ES2878451T3 (es) | 2014-11-14 | 2021-11-18 | Voyager Therapeutics Inc | Polinucleótidos moduladores |
US10597660B2 (en) | 2014-11-14 | 2020-03-24 | Voyager Therapeutics, Inc. | Compositions and methods of treating amyotrophic lateral sclerosis (ALS) |
EP3230441A4 (en) | 2014-12-12 | 2018-10-03 | Voyager Therapeutics, Inc. | Compositions and methods for the production of scaav |
KR20240056729A (ko) | 2016-05-18 | 2024-04-30 | 보이저 테라퓨틱스, 인크. | 조절성 폴리뉴클레오티드 |
KR20200018488A (ko) | 2017-05-24 | 2020-02-19 | 토리스 게엠베하 | 고암모니아혈증을 치료하기 위한 글루타민 합성효소의 용도 |
JOP20190269A1 (ar) | 2017-06-15 | 2019-11-20 | Voyager Therapeutics Inc | بولي نوكليوتيدات aadc لعلاج مرض باركنسون |
BR112019027086A2 (pt) * | 2017-06-21 | 2020-07-07 | Timothy A. Bertram | células renais bioativas imunoprivilegiadas para o tratamento de doença renal |
KR20200083495A (ko) | 2017-10-20 | 2020-07-08 | 더 리서치 인스티튜트 앳 네이션와이드 칠드런스 하스피탈 | Nt-3 유전자 치료를 위한 방법 및 물질 |
EP3821027A1 (en) * | 2018-07-13 | 2021-05-19 | Enzene Biosciences Ltd. | Double knock-out cho cell line method of its generation and producing therapeutic proteins therefrom |
CN112955557A (zh) * | 2018-10-01 | 2021-06-11 | 奥特吉尼克斯制药公司 | 用于治疗丙酸血症的基因疗法 |
CA3173178A1 (en) | 2020-07-30 | 2022-02-03 | Shape Therapeutics Inc. | Stable cell lines for inducible production of raav virions |
EP4301861A1 (en) * | 2021-03-03 | 2024-01-10 | Shape Therapeutics Inc. | Auxotrophic cells for virus production and compositions and methods of making |
WO2023212298A1 (en) | 2022-04-29 | 2023-11-02 | Broadwing Bio Llc | Bispecific antibodies and methods of treating ocular disease |
WO2023212293A1 (en) | 2022-04-29 | 2023-11-02 | Broadwing Bio Llc | Complement factor h related 4-specific antibodies and uses thereof |
WO2023212294A1 (en) | 2022-04-29 | 2023-11-02 | Broadwing Bio Llc | Angiopoietin-related protein 7-specific antibodies and uses thereof |
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KR20190008197A (ko) | 2019-01-23 |
CN109563496A (zh) | 2019-04-02 |
CA3019126A1 (en) | 2017-10-05 |
JP2022101642A (ja) | 2022-07-06 |
EP3436576A4 (en) | 2019-10-30 |
MX2018011928A (es) | 2019-03-28 |
KR102479894B1 (ko) | 2022-12-21 |
BR112018070250A2 (pt) | 2019-01-29 |
AU2023204029A1 (en) | 2023-07-13 |
AU2017244133A1 (en) | 2018-10-18 |
WO2017173043A1 (en) | 2017-10-05 |
EP3436576A1 (en) | 2019-02-06 |
SG11201808398PA (en) | 2018-10-30 |
US20190078099A1 (en) | 2019-03-14 |
CN109563496B (zh) | 2023-08-29 |
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