JP7629182B2 - アミロイドβの凝集抑制剤、アミロイドβ凝集疾患用医薬組成物、およびその用途 - Google Patents
アミロイドβの凝集抑制剤、アミロイドβ凝集疾患用医薬組成物、およびその用途 Download PDFInfo
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- A61K38/00—Medicinal preparations containing peptides
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/0004—Screening or testing of compounds for diagnosis of disorders, assessment of conditions, e.g. renal clearance, gastric emptying, testing for diabetes, allergy, rheuma, pancreas functions
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- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
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- C07K7/06—Linear peptides containing only normal peptide links having 5 to 11 amino acids
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Description
配列番号1:GSGNR
配列番号2:GSGFK
本発明のアミロイドβの凝集抑制剤は、前述のように、配列番号1のアミノ酸配列からなるペプチドおよび配列番号2のアミノ酸配列からなるペプチドの少なくとも一方を含むことを特徴とする。前記配列番号1のペプチドを、以下、ペプチド1またはGSGNRともいい、前記配列番号2のペプチドを、以下、ペプチド2またはGSGFKともいう。
配列番号1:GSGNR
配列番号2:GSGFK
配列番号3:DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA
本発明のアミロイドβ凝集疾患用医薬組成物(以下、医薬組成物ともいう)は、前述のように、前記配列番号1のアミノ酸配列からなるペプチド1および前記配列番号2のアミノ酸配列からなるペプチド2の少なくとも一方を含むことを特徴とする。
本発明のアミロイドβの凝集抑制方法は、前述のように、被検体に、前記本発明のアミロイドβの凝集抑制剤を添加することを特徴とする。本発明の抑制方法は、前記本発明の凝集抑制剤を使用することが特徴であって、その他の工程および条件等は何ら制限されない。
本発明のアミロイドβ凝集疾患の治療方法は、前述のように、被検体に、前記本発明のアミロイドβの凝集抑制剤を投与することを特徴とする。本発明の治療方法は、前記本発明の医薬組成物を使用することが特徴であって、その他の工程および条件等は何ら制限されない。前記基質としては、例えば、前述のようなターゲットがあげられる。
本発明のペプチドは、アミロイドβの凝集抑制に使用するための前記配列番号1または2のアミノ酸配列からなるペプチドである。また、本発明のペプチドは、アミロイドβ凝集が原因となるアミロイドβ凝集疾患の治療に使用するための前記配列番号1または2のアミノ酸配列からなるペプチドである。
ペプチド1(GSGNR)およびペプチド2(GSGFK)について、アミロイドβ(Aβの凝集抑制能を確認した。
Aβの凝集には、Aβ由来のフラグメントペプチドを使用した。前記フラグメントペプチドは、凝集性が高いAβ25-35を選択した。前記Aβ25-35は、ヒト由来Aβの全長配列25番目~35番目の11アミノ酸残基のペプチド(配列番号4:GSNKGAIIGLM、Ab25-35ともいう)である。
蛍光色素チオフラビンT(ThT)は、Ab凝集体と結合し、結合によって強い蛍光を発することから、蛍光強度の測定により凝集の増加または抑制が判断できる。そこで、ThTを用いて、ペプチド1(GSGNR)およびペプチド2(GSGFK)によるAβ25-35の凝集抑制を確認した。
ペプチド1(GSGNR)およびペプチド2(GSGFK)について、Aβ25-35に対する濃度を確認した。特に示さない限り、前記(2)に従って測定を行った。
in vivoにおけるペプチド2(GSGFK)の効果を確認した。なお、投与するペプチドまたはAβ25-35の調整用溶媒は、生理食塩水を使用した。
投与群(7月齢):Aβ25-35(+)/GSGFK(+)
ネガティブコントロール群(7月齢):Aβ25-35(+)/GSGFK(-)
ポジティブコントロール群(13月齢):Aβ25-35(-)/GSGFK(-)
ペプチド1(GSGNR)およびペプチド2(GSGFK)について、アミロイドβ(Aβ凝集体の乖離能を確認した。
Claims (9)
- 配列番号1のアミノ酸配列からなるペプチドおよび配列番号2のアミノ酸配列からなるペプチドの少なくとも一方を含むことを特徴とするアミロイドβの凝集抑制剤。
配列番号1:GSGNR
配列番号2:GSGFK - 配列番号1のアミノ酸配列からなるペプチドおよび配列番号2のアミノ酸配列からなるペプチドの少なくとも一方を含むことを特徴とするアミロイドβ凝集が原因となるアミロイドβ疾患用医薬組成物。
配列番号1:GSGNR
配列番号2:GSGFK - 前記アミロイドβ凝集が原因となるアミロイドβ疾患が、記憶障害、アルツハイマー病、および脳アミロイドアンギオパチーの少なくとも一方である、請求項2に記載のアミロイドβ疾患用医薬組成物。
- 前記アミロイドβ凝集が原因となるアミロイドβ疾患に対する予防剤である、請求項2または3に記載のアミロイドβ疾患用医薬組成物。
- さらに、アミロイドβ凝集体に対する分解剤を含む、請求項2から4のいずれか一項に記載のアミロイドβ疾患用医薬組成物。
- 非ヒト動物に、請求項1に記載のアミロイドβの凝集抑制剤を添加することを特徴とするアミロイドβの凝集抑制方法。
- 被検体に、請求項1に記載のアミロイドβの凝集抑制剤をin vitroで投与することを特徴とするアミロイドβの凝集抑制方法。
- 非ヒト動物に、請求項1に記載のアミロイドβの凝集抑制剤を投与することを特徴とするアミロイドβ凝集が原因となるアミロイドβ凝集疾患の治療方法。
- 配列番号1のアミノ酸配列からなるペプチドおよび配列番号2のアミノ酸配列からなるペプチドの少なくとも一方を含むことを特徴とするアミロイドβ凝集体の凝集乖離剤。
配列番号1:GSGNR
配列番号2:GSGFK
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020167404A JP7629182B2 (ja) | 2020-10-02 | 2020-10-02 | アミロイドβの凝集抑制剤、アミロイドβ凝集疾患用医薬組成物、およびその用途 |
| US18/247,584 US20230374070A1 (en) | 2020-10-02 | 2021-10-01 | AMYLOID-beta AGGREGATION INHIBITOR, PHARMACEUTICAL COMPOSITION FORAMYLOID-beta AGGREGATION DISEASE, AND USE APPLICATION OF SAME |
| PCT/JP2021/036466 WO2022071591A1 (ja) | 2020-10-02 | 2021-10-01 | アミロイドβの凝集抑制剤、アミロイドβ凝集疾患用医薬組成物、およびその用途 |
| EP21875887.8A EP4223767A4 (en) | 2020-10-02 | 2021-10-01 | BETA-AMYLOID AGGREGATION INHIBITOR, PHARMACEUTICAL COMPOSITION FOR BETA-AMYLOID AGGREGATION DISEASE AND USE THEREOF |
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| JP2020167404A JP7629182B2 (ja) | 2020-10-02 | 2020-10-02 | アミロイドβの凝集抑制剤、アミロイドβ凝集疾患用医薬組成物、およびその用途 |
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| JP2022059674A JP2022059674A (ja) | 2022-04-14 |
| JP7629182B2 true JP7629182B2 (ja) | 2025-02-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007516939A (ja) | 2003-06-23 | 2007-06-28 | ニューロケム (インターナショナル) リミテッド | アミロイド関連疾患を治療するための方法および組成物 |
| US20200140506A1 (en) | 2017-05-22 | 2020-05-07 | National Hellenic Research Foundation | Macrocyclic modulators of disease associated protein misfolding and aggregation |
| WO2020117031A2 (en) | 2019-05-23 | 2020-06-11 | Innopeutics Corporation | Composition and method for inhibiting amyloid beta accumulation and/or aggregation |
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| WO2017119511A1 (ja) | 2016-01-06 | 2017-07-13 | 学校法人沖縄科学技術大学院大学学園 | 加水分解活性を示す新規ペプチドおよびその用途 |
| JP6804053B2 (ja) | 2019-03-28 | 2020-12-23 | Toto株式会社 | 静電チャック |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007516939A (ja) | 2003-06-23 | 2007-06-28 | ニューロケム (インターナショナル) リミテッド | アミロイド関連疾患を治療するための方法および組成物 |
| US20200140506A1 (en) | 2017-05-22 | 2020-05-07 | National Hellenic Research Foundation | Macrocyclic modulators of disease associated protein misfolding and aggregation |
| WO2020117031A2 (en) | 2019-05-23 | 2020-06-11 | Innopeutics Corporation | Composition and method for inhibiting amyloid beta accumulation and/or aggregation |
Non-Patent Citations (2)
| Title |
|---|
| NAKAMURA, R. et al.,Evaluation of the proteolytic activity of 5-mer peptides in BoxA region of Tob/BTG family proteins against Amyloid-β fragment peptides,PEPTIDE SCIENCE 2019 Proceedings of the 56th Japanese Peptide Symposium,2020年02月,p.9-10 |
| Peptides,2019年,Vol.116,pp.71-77 |
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| US20230374070A1 (en) | 2023-11-23 |
| WO2022071591A1 (ja) | 2022-04-07 |
| JP2022059674A (ja) | 2022-04-14 |
| EP4223767A4 (en) | 2024-12-11 |
| EP4223767A1 (en) | 2023-08-09 |
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