JP2013506660A - 合成ミオスタチンペプチドアンタゴニスト - Google Patents
合成ミオスタチンペプチドアンタゴニスト Download PDFInfo
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- JP2013506660A JP2013506660A JP2012532033A JP2012532033A JP2013506660A JP 2013506660 A JP2013506660 A JP 2013506660A JP 2012532033 A JP2012532033 A JP 2012532033A JP 2012532033 A JP2012532033 A JP 2012532033A JP 2013506660 A JP2013506660 A JP 2013506660A
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Abstract
Description
別途定義されない限り、本明細書中で使用されるすべての技術的用語および科学的用語は、本発明が属する技術分野の当業者によって一般的に理解されるのと同じ意味を有する。本明細書中に記載される方法および組成物と類似または同等である任意の方法および組成物を本発明の実施または試験において使用することができるが、好ましい方法および組成物がここでは記載される。本発明の目的のために、下記の用語は下記において定義される。
本発明は、ミオスタチンに関連づけられる障害の処置における使用のためのミオスタチンアンタゴニスト活性を有する新規合成ペプチドに関する。
方法
組換えコントロールミオスタチンアンタゴニストペプチドの発現および精製
本明細書中、以降、ミオスタチンアンタゴニスト310として示される、ウシのミオスタチン配列の267〜310アミノ酸に対応するcDNAを個別にPCR増幅し、BamHI部位を使用してpET16−Bベクターにクローン化した。アンタゴニスト310の発現および精製は、天然条件下で製造者(Qiagen)のプロトコルに従って行われ、N末端(MGHHHHHHHHHHSSGHIEGRHMLEDP)およびC末端タグ(EDPAANKARKEAELAAATAEQ)を有するペプチドを得た。この組換えペプチドは合成型と活性を比較するための陽性コントロールであった。
本明細書中、以降、310合成ペプチドとして示され、2−3結合性(connectivity)または2−3/1−4結合性(connectivity)のいずれかを有する、ウシのミオスタチン配列の267〜310のアミノ酸に対応する合成ペプチドは、Bachemn Americas,Inc,CA,USによって生産された。これらのペプチドは、カルボキシル基または1つのアミノ酸のC末端を、別のアミノ基またはN−末端へとカップリングすることによって合成された。保護基は不必要なシステイン結合を防ぐために使用された。
ウシのC2C12筋芽細胞を、標準的な技術(Thomasら、2000)に従ってダルベッコ改変イーグル培地で成長させた。筋芽細胞増殖アッセイは非被覆の96ウェルマイクロタイタープレートにおいて行われた。C2C12培養物は1000細胞/ウェルで播種された。16時間の付着期間の後、2−3構造にある合成310ペプチド、1−4/2−3構造にある合成310ペプチド、もしくは陽性コントロール(組換え310ペプチド)のいずれかを種々の濃度で含有する試験培地を加え、細胞をさらに48時間または72時間培養した。培養期間後、以前の記載(Thomasら、2000)のように、増殖は、メチレンブルー光学的エンドポイントアッセイを使用して評価された。
結果は、310組換え陽性コントロールペプチドが、10μgおよび20μgの濃度において、コントロール(培養液およびバッファーのみ)と比較して、48時間または72時間にわたって著しく筋芽細胞の増殖を高めたことを示す。合成310ペプチドの両者もまた、筋芽細胞の増殖能力を高めた。
実施例1で観察された増大した増殖が単純に偽陽性結果ではなかったことを明らかにするために、プレートを使用して核をカウントした。
方法
対象のウェル中の細胞は、核を青色に染める蛍光色素であるDAPI(4’−6−ジアミジノ−2−フェニルインドール)を用いて染色された。DAPIはPBS中1μg/mLの濃度で使用され、細胞は室温で5分間染色され、その後PBSバッファーで1回洗浄された。各ウェルの画像はそれから、ライカDMI6000顕微鏡を用いて撮影され(captured)、画像解析プログラム(イメージ−プロ プラス)を使用して核をカウントした。各々の処置(組換え310陽性コントロール、10μg/mlおよび20μg/mlでの合成ペプチド(2−3)および合成ペプチド(1−4/2−3))に対し、1処置あたり3〜6ウェルが解析された。
合成310(2−3)ペプチドに対して48時間および72時間で(以下の表2に示す)、合成310(1−4/2−3)ペプチドに対して72時間で、著しい細胞数の増大があった。これらの結果は、実施例1で観察された筋芽細胞の増殖における増加は、真に細胞数の増加の結果であったことを明らかにした。
方法
配列番号1の267位〜310位および282位〜310位の位置でのアミノ酸に対応するアミノ酸配列を有する多数の合成ペプチドが調製された。267〜310ペプチドにおいて、多数の異なる結合性(connectivity)が、以下の通りに調製された:
1.1−3/2−4
2.1−2/3−4
3.1−2
4.1−3
5.1−4
6.1−2、3−4/1−3、2−4
7.2−4
8.3−4
9.1−4/2−3
10.線状(強制的な結合性(connectivity)無し)
インビボで増大した筋芽細胞増殖を示した唯一の試験された合成ペプチドは、線状310合成ペプチドであった。他の310構造は一切活性を示さなかった。アミノ酸282位の位置でN末端切断された310合成ペプチドもまた、活性ではなかった。この特定のペプチドは唯一2つのシステイン残基、すなわちシステイン3および4を包含し、それゆえ、3−4結合性(connectivity)を含むであろう。線状310合成ペプチドは、起こり得る構造のうちいずれか一以上へ折り重ねられた(folded)のであろう。この分子が、インビトロでの筋芽細胞増殖の増大に効果的であったこととして、本発明者らは、この分子が生理活性構造と考えられる2−3結合性(connectivity)を含んだ、と推量する(結果は示さず)。
配列番号1の281位および282位の位置でのシステイン残基が、(2−3結合性(connectivity)に対応する)ジスルフィド結合を形成するために結合した、少なくとも2つのシステイン残基を含む合成ミオスタチンアンタゴニストペプチドは、インビトロで筋芽細胞の増殖を増強することに効果的であった。我々は、2−3または2−3/1−4結合性(connectivity)のいずれかを有する合成ペプチドがミオスタチンアンタゴニスト活性を有することを示す。
下記の参考文献は、本明細書中に示される細部に対して補足的である例示的細部、手順の細部および他の細部を提供する程度に、出典明示により本明細書中に特に組み込まれる。本明細書の本文を通して参照される特許明細書もまた、出典明示により本明細書中に特に組み込まれる。
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Claims (26)
- 配列番号1の成熟型ミオスタチンペプチドの少なくとも5つの連続するアミノ酸に対応するアミノ酸配列を有する、ミオスタチンアンタゴニスト活性を有する合成ペプチドであって、ジスルフィド結合の形成および結合を強制される、281位および282位の位置での少なくとも2つのシステイン残基を含む合成ペプチド、またはその機能的な変種もしくはフラグメント。
- 配列番号1の、少なくとも10、少なくとも15、少なくとも20、少なくとも25、少なくとも30、少なくとも35、少なくとも40、少なくとも45、少なくとも50、少なくとも55、または少なくとも60の連続するアミノ酸を含む、請求項1に記載の合成ペプチド。
- C末端切断が、アミノ酸282、アミノ酸335、またはその間での位置において存在するC末端切断された配列番号1の成熟型ミオスタチンペプチドに対応するアミノ酸を含む、請求項1または2に記載の合成ペプチド。
- C末端切断が、282位、283位、284位、285位、286位、287位、288位、289位、290位、291位、292位、293位、294位、295位、296位、297位、298位、299位、300位、301位、302位、303位、304位、305位、306位、307位、308位、309位、310位、311位、312位、313位、314位、315位、316位、317位、318位、319位、320位、321位、322位、323位、324位、325位、326位、327位、328位、329位、330位、331位、332位、333位、334位または335位のアミノ酸位置において存在するC末端切断された成熟型ミオスタチンペプチドに対応するアミノ酸配列、またはその機能的な変種もしくはフラグメントからなる群から選択される、請求項3に記載の合成ペプチド。
- C末端切断が、329位、320位、310位、300位、295位、289位、284位または282位のアミノ酸位置において存在するC末端切断された成熟型ミオスタチンペプチドに対応するアミノ酸配列(配列番号2−9)、またはその機能的な変種もしくはフラグメント、またはそれらと実質的な配列相同性を有するペプチドからなる群から選択される、請求項4に記載の合成ペプチド。
- C末端切断が310位のアミノ酸位置である、C末端切断された成熟型ミオスタチンペプチド(配列番号4)からなる、請求項5に記載の合成ペプチド。
- さらに、268位、280位、またはその間でのアミノ酸位置において存在するN末端切断を含む、請求項3−6のいずれか1項に記載の合成ペプチド。
- 請求項1の少なくとも一つの合成ペプチドを医薬上許容される担体と共に含む医薬組成物。
- 動物において筋肉成長を調節し、脂質生成分化を促進させ、かつ/または骨の成長もしくは石灰化を促進する方法であって、少なくとも一つの請求項1の合成ペプチドの有効量を必要とされる動物に投与することを含む方法。
- 増大した筋肉量、低下した脂肪沈着、および/または、改善された骨成長を、ヒツジ、ウシ、シカ、家禽、七面鳥、ブタ、ウマ、マウス、ラット、ネコ、イヌまたはヒトにおいて生じさせるための、請求項9に記載の方法。
- 患者における筋肉組織または脂肪組織の異常な量、発達または代謝活性によって少なくとも部分的に特徴づけられるミオスタチン関連の病理学的状態を防止、処置、または、そのような病理学的状態の重篤度を軽減する方法であって、請求項1の合成ペプチドの有効量を必要とされる患者に投与することを含む方法。
- 病理学的状態が、筋肥大に関連づけられる障害;炎症性筋障害、筋ジストロフィー、運動ニューロン疾患、神経筋接合部の疾患、末梢神経の疾患、内分泌異常に起因する筋障害、代謝症候群、HIV、ガン、サルコペニア、悪液質、および、他の消耗性状態に関連する筋萎縮および筋肉消耗;心不全;骨粗鬆症;腎不全または腎疾患;肝不全または肝疾患;食欲不振;肥満;糖尿病;および創傷治癒からなる群から選択される、請求項11に記載の方法。
- 状態の防止、処置、または改善方法であって、少なくとも一つの請求項1の合成ペプチドの有効量を必要とされる患者に投与することを含み、状態が、増大した衛星細胞活性化、筋芽細胞増殖、マクロファージおよび筋芽細胞の遊走、ならびに/または、低下した線維形成から部分的に利益を受けるものである、方法。
- 状態が、外傷に起因する筋損傷;化学療法剤、放射線治療、デキサメタゾンなどの、剤の投与に起因する筋損傷;手術後に要求される、長期の安静に起因する筋肉消耗;創傷治癒;筋肥大に関連づけられる障害;炎症性筋障害、筋ジストロフィー、運動ニューロン疾患、神経筋接合部の疾患、末梢神経の疾患、内分泌異常に起因する筋障害、代謝症候群、HIV、ガン、サルコペニア、悪液質および他の消耗性状態に関連する筋萎縮および筋損傷;心不全;骨粗鬆症;腎不全または腎疾患;肝不全または肝疾患;食欲不振;肥満および糖尿病からなる群から選択される、請求項13に記載の方法。
- 合成ペプチドが第二の医薬活性化合物にコンジュゲート化され、標的細胞または標的組織に対する治療効果が高められ、かつ、医薬組成物が、合成ペプチドおよび第二の化合物の個別投与、連続投与または同時投与のために配合される、請求項8に記載の医薬組成物。
- 少なくとも1つの請求項1の合成ペプチドの有効量を動物に投与することを含む、動物の筋肉成長を調節する方法。
- 増大した筋肉量を、ヒツジ、ウシ、シカ、家禽、七面鳥、ブタ、ウマ、ネコ、イヌまたはヒトにおいて生じさせるための、請求項16に記載の方法。
- 必要とされる動物の筋肉成長を調節し、脂肪生成分化を促進させ、かつ/または、骨の成長もしくは石灰化を促進させるための医薬品の製造における、少なくとも1つの請求項1の合成ペプチドの使用。
- 増大した筋肉量、低下した脂肪沈着、および/または、改善された骨成長を、ヒツジ、ウシ、シカ、家禽、七面鳥、ブタ、ウマ、マウス、ラット、ネコ、イヌまたはヒトにおいて生じさせるための、請求項18の使用。
- 必要とされる患者の筋肉組織または脂肪組織の異常な量、発達または代謝活性によって少なくとも部分的に特徴づけられるミオスタチン関連の病理学的状態を防止、処置、または、そのような病理学的状態の重篤度を軽減するための医薬品の製造における、少なくとも1つの請求項1の合成ペプチドの使用。
- 病理学的状態が、筋肥大に関連づけられる障害;炎症性筋障害、筋ジストロフィー、運動ニューロン疾患、神経筋接合部の疾患、末梢神経の疾患、内分泌異常に起因する筋障害、代謝症候群、HIV、ガン、サルコペニア、悪液質および他の消耗性状態に関連する筋萎縮および筋肉消耗;心不全;骨粗鬆症;腎不全または腎疾患;肝不全または肝疾患;食欲不振;肥満;糖尿病;および創傷治癒からなる群から選択される、請求項20に記載の使用。
- 必要とされる患者の、増大した衛星細胞活性化、筋芽細胞増殖、マクロファージおよび筋芽細胞の遊走、ならびに/または、低下した線維形成から部分的に利益を受ける状態である状態の防止、処置または改善のための医薬品の製造における、少なくとも1つの請求項1の合成ペプチドの使用。
- 状態が、外傷に起因する筋損傷;化学療法剤、放射線治療、デキサメタゾンなどの、剤の投与に起因する筋損傷;手術後に要求される、長期の安静に起因する筋肉消耗;創傷治癒;筋肥大に関連づけられる障害;炎症性筋障害、筋ジストロフィー、運動ニューロン疾患、神経筋接合部の疾患、末梢神経の疾患、内分泌異常に起因する筋障害、代謝症候群、HIV、ガン、サルコペニア、悪液質および他の消耗性状態に関連する筋萎縮および筋損傷;心不全;骨粗鬆症;腎不全または腎疾患;肝不全または肝疾患;食欲不振;肥満および糖尿病からなる群から選択される、請求項22に記載の使用。
- 請求項1の合成ペプチドを製造するための方法であって、下記の工程:
a.固相ペプチド合成を使用し、281位および282位の位置で少なくとも2つのシステイン残基を含むペプチド鎖であって、配列番号1の成熟型ミオスタチンペプチドの少なくとも5つの連続するアミノ酸に対応するアミノ酸配列を有するペプチド鎖の調製;
b.ジスルフィド結合を形成するために、281位および282位の位置で少なくとも2つのシステイン残基が結合することを確保するための、保護手段および脱保護手段の使用;
を含む方法。 - 合成ペプチドが272位、281位、282位および309位の位置でシステイン残基を含む時、保護および脱保護工程bが、ジスルフィド結合を形成するために281位および282位の位置でのみシステイン残基が結合すること、あるいは、ジスルフィド結合を形成するために、281位および282位の位置でシステイン残基が結合し、272位および309位の位置でシステイン残基が結合することを確保する、請求項24に記載の方法。
- 請求項24または25の方法によって製造された合成ペプチド。
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| WO2018030432A1 (ja) * | 2016-08-10 | 2018-02-15 | 学校法人東京薬科大学 | ペプチドもしくはその薬学的に許容される塩、またはそれらのプロドラッグ |
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| JP5858929B2 (ja) * | 2010-01-15 | 2016-02-10 | ライジェル ファーマシューティカルズ, インコーポレイテッド | Dexおよびgdf8を用いたスクリーニングアッセイ |
| EA201591825A1 (ru) * | 2013-03-15 | 2016-05-31 | Амген Инк. | Антагонизм миостатина у субъектов - людей |
| CA3005158A1 (en) | 2014-11-06 | 2016-05-12 | Scholar Rock, Inc. | Anti-pro/latent-myostatin antibodies and uses thereof |
| EP3400240A2 (en) | 2016-01-08 | 2018-11-14 | Scholar Rock, Inc. | Anti-pro/latent myostatin antibodies and methods of use thereof |
| EP4218817A3 (en) * | 2017-01-06 | 2023-09-06 | Scholar Rock, Inc. | Methods for treating metabolic diseases by inhibiting myostatin activation |
| EP3761783A4 (en) * | 2018-02-26 | 2021-12-15 | The Trustees of Columbia University in the City of New York | ZINC ASSOCIATED TREATMENT AND DIAGNOSIS OF CACHEXIA |
| WO2019179361A1 (zh) * | 2018-03-21 | 2019-09-26 | 傅惠芳 | 改善括约肌闭锁不全的组合物及其医药组成物与用途 |
| WO2019178759A1 (zh) * | 2018-03-21 | 2019-09-26 | 维多利亚生物医学控股股份有限公司 | 促进局部肌肉增长、减缓或防止局部肌肉萎缩的组合物及其用途 |
| TWI649332B (zh) * | 2018-03-21 | 2019-02-01 | 英屬安圭拉商維多利亞生物醫學控股股份有限公司 | Composition for promoting local muscle growth, slowing or preventing local muscle atrophy and use thereof |
| US20220331290A1 (en) * | 2019-09-24 | 2022-10-20 | Myo-Tec-Sci | Pharmaceutical composition for preventing or treating sarcopenia, containing unnatural amino acid |
| KR102840816B1 (ko) * | 2021-11-25 | 2025-07-31 | (주)네오크레마 | 근아세포의 증식과 근육세포로의 분화를 촉진하는 신규 펩티드 및 이의 용도 |
| KR102836354B1 (ko) * | 2021-11-25 | 2025-07-22 | (주)네오크레마 | 근아세포의 증식과 근육세포로의 분화를 촉진하는 신규 펩티드 및 이의 용도 |
| WO2024138076A1 (en) | 2022-12-22 | 2024-06-27 | Scholar Rock, Inc. | Selective and potent inhibitory antibodies of myostatin activation |
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| US11566047B2 (en) | 2016-08-10 | 2023-01-31 | Tokyo University Of Pharmacy & Life Sciences | Peptide or pharmaceutically acceptable salt thereof, or prodrug thereof |
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| NZ599604A (en) | 2014-07-25 |
| MX2012003924A (es) | 2012-08-03 |
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| EP2483300A1 (en) | 2012-08-08 |
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| AU2010301196A1 (en) | 2012-05-17 |
| EP2483300A4 (en) | 2013-02-27 |
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