JP2020507350A - 組換え神経成長因子のための組成物及び方法 - Google Patents
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Abstract
Description
本出願は、2017年2月10日に出願された米国特許仮出願第62/457,499号の優先権の利益を主張するものであり、その全体が参照により本明細書に組み入れられる。
(i)全長神経成長因子(NGF)ポリペプチド配列又はその生物学的活性を有する断片を含む第1の部分;及び
(ii)NGFポリペプチド配列又はその生物学的活性を有する断片の半減期を増大させる追加のポリペプチドを含む第2の部分
を含むポリペプチドを提供する。
(i)細胞培養培地中で本明細書に記載の宿主細胞を培養するステップ;及び
(ii)本明細書に記載のポリペプチドを発現させるステップ
を含む方法を提供する。
一部の実施形態において、本方法はさらに、
(iii)細胞培養培地から本明細書に記載のポリペプチドを精製するステップ
を含む。
これらの例示的な方法によって、本明細書に記載のポリペプチドが産生され、分離され、最終的にさらなる使用のために精製され得る。
冠詞「a」及び「an」は、冠詞の文法的対象の1つ又は複数(すなわち、少なくとも1つ)を指すために本明細書において使用される。例として、「要素(エレメント)」とは、1つの要素又は複数の要素を意味する。
本発明は、本明細書に開示される組成物の薬学的に許容される組成物を提供する。以下に詳細に記載するように、本発明の医薬組成物は、固体又は液体形態での投与のために特別に製剤化することができ、例えば以下のために適合して製剤化することができる:(1)経口投与、例えば、飲薬(水性若しくは非水性の溶液若しくは懸濁液)、錠剤、ボーラス、粉末、顆粒、ペースト;(2)非経口投与、例えば、皮下、筋肉内又は静脈内注射、例えば滅菌溶液又は懸濁液として;(3)局所適用、例えば、クリーム、軟膏、点眼薬、又は皮膚若しくは眼投与に適用される噴霧剤として;(4)膣内又は直腸内、例えば、ペッサリー、クリーム又は泡状物として;あるいは(5)エアゾール、例えば、水性エアゾール、リポソーム調製物又は固形粒子として。
NGF-CTPのクローニング
NGF(238アミノ酸)は、最初はα-NGF、β-NGF及びγ-NGFの複合体であり、γサブユニットがβサブユニットのN末端を切断し、それによりタンパク質は機能的なNGF(120アミノ酸)へと活性化する。全長NGF遺伝子(714-bp)を、全長ヒトNGF遺伝子を有するプラスミドを用いて、5’-ATCTC GAGCA CCATG TCCAT GTTGT TCTAC ACTCT GA- 3’(配列番号14)をフォワードプライマー(U1)として、5’-TGGAG CCTTG GAAGA GCTAG AGGCT CTTCT CACAG CCTT-3’(配列番号15)をリバースプライマー(R1)として使用して増幅した。ヒトHCGからのCTP遺伝子はSangon Biotech(Shanghai) Co., Ltd.で合成され、この遺伝子を増幅するために設計したフォワード(U2)及びリバース(R2)プライマーは、それぞれ5’-AAGGC TGTGA GAA GA GCCTC TAGCT CTTCC AAGGC TCCA-3'(配列番号16)及び5’-TTTGC GGCCG CTTACT ACTGG GGCAG AATA -3’(配列番号17)である。こうしてNGF配列及びCTP配列を増幅し、ゲル電気泳動で分析し、その後ゲル抽出を行ってPCR産物を得た。NGFのPCR産物(1μL)及びHCG CTP(1μL)を鋳型として使用し、U1及びR2をそれぞれフォワード及びリバースプライマーとして使用してPCR重複伸張を行った。PCR増幅は、初期ステップ(94℃, 3分)、変性ステップ(94℃, 30秒)、アニーリングステップ(58℃, 30秒)及び伸長ステップ(72℃, 1分)を30サイクル、続いて最終伸長ステップ(72℃, 7分)からなるものとした。PCR産物をゲル電気泳動で分析し、その後ゲル抽出した。ゲル抽出からの遺伝子をpMC-18Tベクターにライゲートし、続いて陽性クローンをスクリーニングし、さらなる遺伝子シーケンシングのために選択した。正確な配列を有するクローンをさらなる構築のために保存した。遺伝子配列を配列番号1に示し、アミノ酸配列を配列番号2に示す(表1)。
NGF-CTP断片は、制限酵素としてのXhoI及びNotI(New England Biolabs Ltd.)によるpMC-18T/NGF-CTPプラスミドの切断により誘導した。続いて断片を、XhoI及びNotIで予め処理したpCI-neoベクターにライゲートした。16℃で一晩のライゲーション反応後、その産物でDH5αコンピテント細胞を形質転換し、アンピシリンを含むLB寒天プレート上でスクリーニングした。最初に陽性クローンをPCRで検証し、さらに遺伝子シーケンシングにより評価した。PCI-neo/NGF-CTPプラスミドの構造を図1に示す。
Gene Pulser XcellTMエレクトロポレーションシステム(Bio-Rad Laboratories, Inc.)を160Vで150msにわたり使用して、エレクトロポレーションによりPCI-neo/NGF-CTPプラスミドをCHO-S細胞(Invitrogen Co.)に導入した。エレクトロポレーションした細胞を、10%ウシ胎仔血清(FBS)を添加したDMEM-F12培養培地の入った35mm組織培養皿に移しそこで培養した。2日後、G418(Sigma-Aldrich Co. LLC.)を最終濃度600μg mL-1となるように培養培地に添加し、耐性遺伝子に対する選択を強化した。G418処理後の残りのモノクローナル細胞をタンパク質発現レベルのさらなる分析のためにドットブロッティングにより96ウエルプレートにトランスファーした。高発現レベルの細胞をその後の懸濁培養のために選択した。
ワーキング細胞バンクをWAVEバイオリアクタ(10L, GE Healthcare)中で無血清培養培地を用いてrhNGF-CTPを産生するように回復させた。回収する前に、細胞をフェドバッチ形式で12日間にわたりバイオリアクタ中で培養した。上清を回収し、遠心フィルターで濃縮し、AKTA精製機(GE Healthcare)においてタンパク質クロマトグラフィを用いて精製した。サンプルを最初にSepharose Fastflow(GE Healthcare)にアプライし、塩化ナトリウム(1mol L-1)を含むバッファーにより溶出した。その後、Phenyl Fastflow(GE Healthcare)及びSuperdex 75(GE Healthcare)をさらなる精製のために用いた。組換えタンパク質の純度はSDS-PAGEゲル電気泳動に示すように95%超であった(図2)。
精製されたrhNGF-CTPのN末端シーケンシングは、最初の5アミノ酸(SSSHP)が同じでヒトNGFの遺伝子配列と良好にアライメントし、これはα-NGFの正確な切断を示している。rhNGF-CTP(148アミノ酸)の配列を配列番号3に示す。非グリコシル化rhNGF-CTPの計算分子量は16273Daであり、質量分析法により測定された精製されたrhNGF-CTPの分子量は18605Daであった。これらの分子量の差はCTPでのグリコシル化に起因する。
Sprague Dawley(登録商標)ラットをrhNGF-CTPの薬物動態研究に供した。6匹のラット(体重300〜400g)を2群に分け、rhNGF又はrhNGF-CTPのいずれかで処置した。ラットをナペンタール(1%)で麻酔し、rhNGF又はrhNGF-CTPを30μg kg-1体重で筋内注射により投与した。注射の0.5、1、2、4、6、8、12及び24時間後に尾から血液サンプルを採取した。血漿NGF濃度を図3に示すようにELISAを用いて決定した。rhNGFの半減期はラットにおいて3.9時間と算出されたが、rhNGF-CTPの半減期は10.0時間にまで延長し、これは2.5倍の増大を示す。
本明細書で言及されるすべての刊行物、特許及び特許出願は、個々の刊行物、特許又は特許出願が参照により組み込まれることが具体的かつ個別に示されるかのように、参照によりその全体が組み込まれる。 矛盾する場合、本明細書の定義を含む本出願が支配する。
当業者は、本明細書に記載の本発明の特定の実施形態に対する多くの均等物を認識するか、又は日常的な実験のみを使用して確認することができる。そのような均等物は、添付の特許請求の範囲に含まれることが意図されている
Claims (60)
- 以下:
(i)全長神経成長因子(NGF)ポリペプチド配列、又はその生物学的活性を有する断片を含む第1の部分;及び
(ii)ヒトの血流中で、NGFポリペプチド配列、又はその生物学的活性を有する断片の半減期を増大させる追加のポリペプチドを含む第2の部分
を含むポリペプチド。 - 第1の部分が全長NGFポリペプチド配列を含む、請求項1に記載のポリペプチド。
- 第1の部分がNGFの生物学的活性を有する断片を含む、請求項1に記載のポリペプチド。
- 第1の部分がヒトNGF配列を含む、請求項1〜3のいずれか1項に記載のポリペプチド。
- ヒトNGF配列が配列番号5と少なくとも70%同一である、請求項4に記載のポリペプチド。
- ヒトNGF配列が配列番号5と少なくとも80%同一である、請求項5に記載のポリペプチド。
- ヒトNGF配列が配列番号5と少なくとも90%同一である、請求項6に記載のポリペプチド。
- ヒトNGF配列が配列番号5と少なくとも95%同一である、請求項7に記載のポリペプチド。
- ヒトNGF配列が配列番号5と少なくとも99%同一である、請求項8に記載のポリペプチド。
- ヒトNGF配列が配列番号5を含む、請求項9に記載のポリペプチド。
- 第1の部分がNGFの少なくとも1つの結合パートナーと結合可能なものであり、場合によりNGFの少なくとも1つの結合パートナーがトロポミオシン受容体キナーゼA(TrkA)又は低アフィニティNGF受容体(LNGFR/p75NTR)である、請求項3に記載のポリペプチド。
- 第1の部分が配列番号5の122位から241位のアミノ酸残基を含む、請求項11に記載のポリペプチド。
- 第2の部分が、全長ヒト絨毛性ゴナドトロピン(HCG)、又はその生物学的活性を有する断片を含む、請求項1〜12のいずれか1項に記載のポリペプチド。
- ヒト絨毛性ゴナドトロピン(HCG)が配列番号10〜12から選択されるアミノ酸配列を含む、請求項1〜13のいずれか1項に記載のポリペプチド。
- 第2の部分がHCGのカルボキシ末端部分(CTP)を含む、請求項1〜14のいずれか1項に記載のポリペプチド。
- 第2の部分が、配列番号13と少なくとも70%同一であるアミノ酸配列を含むものであり、場合により第2の部分が、配列番号13と少なくとも75%、80%、90%、95、99%又はそれ以上同一であるアミノ酸配列を含む、請求項1〜15のいずれか1項に記載のポリペプチド。
- 第2の部分が配列番号13のアミノ酸配列を含む、請求項1〜16のいずれか1項に記載のポリペプチド。
- 第2の部分が少なくとも1つのグリコシル化部位を含む、請求項1〜17のいずれか1項に記載のポリペプチド。
- 第1の部分及び第2の部分が、リンカーあり又はなしで互いに融合している、請求項1〜18のいずれか1項に記載のポリペプチド。
- 第1の部分が第2の部分のN末端に融合している、請求項19に記載のポリペプチド。
- 第1の部分が第2の部分のC末端に融合している、請求項19に記載のポリペプチド。
- 配列番号2又は3と少なくとも70%同一のアミノ酸配列を含み、場合により配列番号2又は3と少なくとも75%、80%、90%、95、99%又は100%同一のアミノ酸配列を含む、請求項1〜20のいずれか1項に記載のポリペプチド。
- ポリペプチドが、NGFポリペプチド配列単独のin vivo半減期の少なくとも2.5倍のin vivo半減期を有する、請求項1〜22のいずれか1項に記載のポリペプチド。
- 標識、例えば精製用標識及び/又は蛍光タグなどをさらに含む、請求項1〜23のいずれか1項に記載のポリペプチド。
- ヒトの血流中で、NGFポリペプチド配列又はその生物学的活性を有する断片の機能及び/若しくは安定性を増大する融合ドメインを含む第3の部分をさらに含む、請求項1〜24のいずれか1項に記載のポリペプチド。
- 請求項1〜25のいずれか1項に記載のポリペプチドをコードするポリヌクレオチド。
- 配列番号1と少なくとも70%同一である核酸配列を含む、請求項26に記載のポリヌクレオチド。
- 配列番号1と少なくとも80%同一である核酸配列を含む、請求項26又は27に記載のポリヌクレオチド。
- 配列番号1と少なくとも90%同一である核酸配列を含む、請求項26〜28のいずれか1項に記載のポリヌクレオチド。
- 配列番号1と少なくとも95%同一である核酸配列を含む、請求項26〜29のいずれか1項に記載のポリヌクレオチド。
- 配列番号1と少なくとも99%同一である核酸配列を含む、請求項26〜30のいずれか1項に記載のポリヌクレオチド。
- 配列番号1の核酸配列を含む、請求項26〜31のいずれか1項に記載のポリヌクレオチド。
- ポリ核酸が配列番号1に相補的な核酸配列とストリンジェントな条件下でハイブリダイズすることができ、場合によりストリンジェントな条件が50%v/vホルムアミド、5 x SSC、2%w/vブロッキング剤、0.1%N-ラウロイルサルコシン、0.3%SDS中での65℃にて一晩のハイブリダイゼーション、及び5 x SSC中での約65℃での洗浄を含む、請求項26〜32のいずれか1項に記載のポリヌクレオチド。
- 標識、例えば精製用標識及び/又は蛍光タグなどをさらに含む、請求項26〜33のいずれか1項に記載のポリヌクレオチド。
- 請求項1〜25のいずれか1項に記載のポリペプチドを発現可能な発現ベクター、及び/又は請求項26〜34のいずれか1項に記載のポリヌクレオチドを含む発現ベクター。
- 発現ベクターが、プラスミド、コスミド、ウイルスベクター、組換え発現ベクター、又は標的化リポソームである、請求項35に記載の発現ベクター。
- 発現ベクターがウイルスベクターであり、ウイルスベクターが、アデノウイルスベクター、ヘルペスウイルスベクター、ワクシニアウイルスベクター、キメラウイルス、コロイド分散系、又はRNAベクターである、請求項36に記載の発現ベクター。
- RNAベクターがレトロウイルスベクターである、請求項37に記載の発現ベクター。
- レトロウイルスベクターがマウスレトロウイルス又はその誘導体である、請求項38に記載の発現ベクター。
- レトロウイルスベクターがトリレトロウイルス又はその誘導体である、請求項38に記載の発現ベクター。
- 請求項35〜40のいずれか1項に記載の発現ベクターを含む宿主細胞。
- 以下:
(i)請求項41に記載の宿主細胞を細胞培養培地において培養するステップ;及び
(ii)請求項1〜25のいずれか1項に記載のポリペプチドを発現させるステップ
を含む方法。 - さらに
(iii)細胞培養培地から請求項1〜25のいずれか1項に記載のポリペプチドを精製するステップ
を含む、請求項42に記載の方法。 - 請求項1〜25のいずれか1項に記載のポリペプチド、請求項26〜34のいずれか1項に記載のポリヌクレオチド、請求項35〜40のいずれか1項に記載の発現ベクター、又は請求項41に記載の宿主細胞を含む組成物。
- 請求項44に記載の組成物及び薬学的に許容される担体を含む医薬組成物。
- 薬学的に許容される担体が、コロイド分散系又は標的化リポソームである、請求項45に記載の医薬組成物。
- 組成物が 固体又は液体形態での投与用に製剤化される、請求項45又は46に記載の医薬組成物。
- 組成物が、動脈内、脳内、病変内、筋内、鼻腔内、眼内、腹腔内、肺内、直腸内、髄腔内、膣内、静脈内、脳室内、経口、非経口、皮下、又は局所的の投与用に製剤化される、請求項45〜47のいずれか1項に記載の医薬組成物。
- 組成物が、水性懸濁液若しくは溶液、非水性懸濁液若しくは溶液、滅菌溶液、錠剤、ボーラス、粉末、顆粒、ペースト、クリーム、軟膏、点眼薬、局所噴霧剤、ペッサリー、泡状物、エアゾール、リポソーム製剤、又は固形粒子の形態である、請求項45〜48のいずれか1項に記載の医薬組成物。
- 組成物が持続投与される、請求項45〜49のいずれか1項に記載の医薬組成物。
- 神経成長因子(NGF)の欠損及び/又は欠陥に関連する疾患又は傷害を処置する方法であって、請求項1〜25のいずれか1項に記載のポリペプチド、請求項26〜34のいずれか1項に記載のポリヌクレオチド、請求項44に記載の組成物、又は請求項45〜50のいずれか1項に記載の医薬組成物の治療上有効量をその必要がある対象に投与することを含む方法。
- 上記疾患又は障害を処置するための追加の薬剤及び/又は治療を対象に投与することをさらに含む、請求項51に記載の方法。
- 上記疾患又は障害が神経障害である、請求項51又は52に記載の方法。
- 神経障害が、筋萎縮性側索硬化症(ルー・ゲーリック病)、アルツハイマー病、ベル麻痺、認知症、ダウン症候群、癲癇、ハンチントン舞踏病、メニエール病、多発性硬化症、神経難聴、卒中、低酸素性虚血性脳症、脳性まひ、麻痺、パーキンソン病、末梢神経障害、視神経障害又は脊髄性筋萎縮症である、請求項53に記載の方法。
- 神経障害が末梢神経障害であり、末梢神経障害が多発神経障害又は単神経障害である、請求項54に記載の方法。
- 神経障害が視神経障害であり、視神経障害が、前眼部若しくは後眼部変性疾患、眼表面の慢性アレルギー性炎症性障害、外傷性視神経障害、緑内障、神経栄養性角膜症、単純ヘルペス角膜炎、又は角膜治癒である、請求項54に記載の方法。
- 神経障害が、中央ニューロン、末梢ニューロン、運動ニューロン若しくは感覚ニューロンの壊死若しくは欠損、外傷、腎機能障害、損傷、手術、虚血、感染、代謝性疾患、栄養不足、悪性腫瘍、毒性物質、又は化学療法により引き起こされる、請求項53〜56のいずれか1項に記載の方法。
- 対象が哺乳動物である、請求項51〜57のいずれか1項に記載の方法。
- その必要がある対象においてニューロンの成長及び/又は増殖を促進する方法であって、請求項1〜25のいずれか1項に記載のポリペプチド、請求項44に記載の組成物、又は請求項45〜50のいずれか1項に記載の医薬組成物の有効量を対象に投与することを含む方法。
- 対象が哺乳動物である、請求項59に記載の方法。
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KR102138192B1 (ko) * | 2018-12-28 | 2020-07-27 | (주)프로테옴텍 | 다수 개의 검사선을 구비한 임신진단용 면역크로마토그래피 스트립 및 이를 포함하는 임신진단키트 |
CN112439053B (zh) * | 2019-08-29 | 2024-08-02 | 江苏中新医药有限公司 | 一种蛋白长效制剂改善性功能障碍的用途 |
CN113845583B (zh) * | 2020-06-28 | 2023-08-11 | 江苏中新医药有限公司 | 一种修饰的重组人神经生长因子及其制备方法 |
CN114933657B (zh) * | 2021-08-25 | 2024-02-02 | 上海交通大学医学院 | 神经生长因子突变体重组蛋白及其应用 |
US20240342308A1 (en) * | 2023-04-13 | 2024-10-17 | Krystal Biotech, Inc. | Methods and Compositions for Treating Conditions Involving the Eye |
CN119431508A (zh) * | 2024-05-06 | 2025-02-14 | 湖南中晟全肽生物科技股份有限公司 | 靶向结合ngf的多肽及其应用 |
CN119464338B (zh) * | 2024-11-27 | 2025-05-16 | 上海交通大学医学院附属仁济医院 | 一种编码具有生物学活性的绿色荧光标记的神经生长因子融合蛋白的融合基因的构建和应用 |
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JP2010501475A (ja) * | 2006-07-24 | 2010-01-21 | アンスティテュ・パストゥール | 翻訳後修飾ニューロトロフィン |
CN105273087A (zh) * | 2014-07-14 | 2016-01-27 | 复旦大学 | NGF-Fc融合蛋白及其制备方法 |
JP2016053084A (ja) * | 2006-02-03 | 2016-04-14 | オプコ バイオロジクス リミテッド | 長期間作用型ポリペプチド並びにその製造方法及び投与方法。 |
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NZ556158A (en) | 2004-12-22 | 2010-04-30 | Auckland Uniservices Ltd | Trefoil factors and methods of treating proliferation disorders using same |
EP2231179A2 (en) * | 2007-12-20 | 2010-09-29 | Cytos Biotechnology AG | Ngf conjugates and uses thereof |
CN102994547B (zh) * | 2011-09-08 | 2015-05-13 | 哈药集团技术中心 | 重组人促红素-ctp融合蛋白生产工艺及应用 |
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JP2010501475A (ja) * | 2006-07-24 | 2010-01-21 | アンスティテュ・パストゥール | 翻訳後修飾ニューロトロフィン |
CN105273087A (zh) * | 2014-07-14 | 2016-01-27 | 复旦大学 | NGF-Fc融合蛋白及其制备方法 |
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JP2023040155A (ja) | 2023-03-22 |
WO2018148507A1 (en) | 2018-08-16 |
JP7597398B2 (ja) | 2024-12-10 |
CA3053267A1 (en) | 2018-08-16 |
US20220339251A1 (en) | 2022-10-27 |
CN110869386A (zh) | 2020-03-06 |
US20180236031A1 (en) | 2018-08-23 |
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