JP7489319B2 - 細胞膜透過性ペプチド - Google Patents
細胞膜透過性ペプチド Download PDFInfo
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- JP7489319B2 JP7489319B2 JP2020548136A JP2020548136A JP7489319B2 JP 7489319 B2 JP7489319 B2 JP 7489319B2 JP 2020548136 A JP2020548136 A JP 2020548136A JP 2020548136 A JP2020548136 A JP 2020548136A JP 7489319 B2 JP7489319 B2 JP 7489319B2
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- 230000001737 promoting effect Effects 0.000 description 1
- XJMOSONTPMZWPB-UHFFFAOYSA-M propidium iodide Chemical compound [I-].[I-].C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CCC[N+](C)(CC)CC)=C1C1=CC=CC=C1 XJMOSONTPMZWPB-UHFFFAOYSA-M 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
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- 229910001415 sodium ion Inorganic materials 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
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- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/08—Linear peptides containing only normal peptide links having 12 to 20 amino acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
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- A61K47/64—Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
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- A61K47/64—Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
- A61K47/645—Polycationic or polyanionic oligopeptides, polypeptides or polyamino acids, e.g. polylysine, polyarginine, polyglutamic acid or peptide TAT
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- C07K2319/00—Fusion polypeptide
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Description
そこで本発明は、細胞膜透過性に優れた新規細胞膜透過性ペプチドを提供することを目的とする。
以下、本発明を示す。
X-(A-B-C)l-(D)m-(Arg)n ・・・ (I)
X-(Arg)n-(D)m-(A-B-C)l ・・・ (II)
[式中、
Xは生理活性ペプチドであり、
A、BおよびCは、独立して、アラニン、2-メチルアラニン、バリン、ロイシン、およびイソロイシンから選択される脂肪族アミノ酸であり、
Dは任意のアミノ酸であり、
lは、1以上、4以下の整数であり、
mは、0以上、5以下の整数であり、
lが1のとき、nは8以上の整数であり、
lが2のとき、nは6以上の整数であり、
lが3のとき、nは4以上の整数であり、
lが4のとき、nは4以上の整数である。]
マイクロウェーブを用いた固相合成法により、Rink Amide樹脂(0.2mmol/g)上で、以下の配列を有するペプチドコンジュゲートのペプチド鎖部分を合成した。
F-Ahx-(カーゴペプチド)-(Leu-Leu-Aib)l-(Gly)m-(Arg)n-NH2
[式中、Fは蛍光基であるフルオロセイン含有基を示し、Ahxは6-アミノヘキサン酸を示し、Aibは2-アミノイソ酪酸(2-メチルアラニン)を示し、カーゴペプチドは以下の構造を有する。]
実施例9(配列番号15): F-Ahx-(カーゴペプチド)-(Leu-Leu-Ala)-(Gly)3-(Arg)9-NH2
ペプチドを形成した樹脂を、トリフルオロ酢酸(TFA)/水/トリイソプロピルシラン(TIS)/3,6-ジオキサ-1,8-オクタンジチオール(DODT)=92.5/2.5/2.5/2.5(容量比)の混合溶液に3時間浸漬し、ペプチドを樹脂から切り出した。
得られたペプチドをN,N-ジメチルホルムアミド(DMF)と水の混合溶媒に溶解し、1,3-ジブロモアセトン(1.5当量)とN,N-ジイソプロピルエチルアミン(3.0当量)で1時間処理することにより、カーゴペプチドを環状化した。
ペプチドを反応溶液から逆相HPLCにより精製し、凍結乾燥した。次いで、DMF中でフルオレセインイソチオシアネート(FITC,1.5当量)とN,N-ジイソプロピルエチルアミン(3.0当量)で4時間処理してN末端を蛍光標識した後、逆相HPLCにより精製することにより、実施例1~9および比較例1~6のペプチドコンジュゲートを合成した。
HeLa細胞(Human cervix adenocarcinoma cell)を、実施例1~9または比較例1~6のペプチドコンジュゲート2μMを含む培養液中、37℃で2時間培養した。次いで、細胞を回収し、ヨウ化プロピジウム溶液で染色後、フローサイトメーターで蛍光強度を測定し、下記式によって比較例2に対する蛍光強度比を算出した。結果を図1と表2に示す。
蛍光強度比=(Fn-F1)/(F2-F1)
Fn: 被検化合物の蛍光強度最頻値
F1: 比較例1の被検化合物の蛍光強度最頻値
F2: 比較例2の被検化合物の蛍光強度最頻値
Claims (6)
- 下記式(I)または式(II)で表される配列を有することを特徴とする細胞膜透過性ペプチドまたはその塩。
X-(A-B-C)l-(D)m-(Arg)n ・・・ (I)
X-(Arg)n-(D)m-(A-B-C)l ・・・ (II)
[式中、
Xは生理活性ペプチドであり、
AおよびBはロイシンであり、
Cはアラニンまたは2-メチルアラニンであり、
Dは、グリシン、アラニン、分枝アミノ酸、ヒドロキシアミノ酸、含硫アミノ酸、酸アミドアミノ酸から選択される中性アミノ酸であり、
lは、1であり、
mは、0以上、5以下の整数であり、
nは8以上の整数である。] - Dが、グリシン、アラニン、バリン、ロイシン、およびイソロイシンから選択されるアミノ酸である請求項1に記載の細胞膜透過性ペプチドまたはその塩。
- Dがグリシンである請求項1または2に記載の細胞膜透過性ペプチドまたはその塩。
- Cが2-メチルアラニンである請求項1~3のいずれかに記載の細胞膜透過性ペプチド。
- 生理活性ペプチドが環状化されたものである請求項1~4のいずれかに記載の細胞膜透過性ペプチドまたはその塩。
- C末端がアミド化されている請求項1~5のいずれかに記載の細胞膜透過性ペプチド。
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JP2006514602A (ja) | 2002-06-18 | 2006-05-11 | シーイーピーイーピー エービー | 細胞侵入ペプチド |
JP2013531988A (ja) | 2010-06-14 | 2013-08-15 | エフ.ホフマン−ラ ロシュ アーゲー | 細胞透過性ペプチドおよびその使用 |
JP2015522264A (ja) | 2012-06-26 | 2015-08-06 | エフ.ホフマン−ラ ロシュ アーゲーF. Hoffmann−La Roche Aktiengesellschaft | 細胞透過性ペプチドおよび細胞透過性ペプチドを同定する方法 |
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JP2013531988A (ja) | 2010-06-14 | 2013-08-15 | エフ.ホフマン−ラ ロシュ アーゲー | 細胞透過性ペプチドおよびその使用 |
JP2015522264A (ja) | 2012-06-26 | 2015-08-06 | エフ.ホフマン−ラ ロシュ アーゲーF. Hoffmann−La Roche Aktiengesellschaft | 細胞透過性ペプチドおよび細胞透過性ペプチドを同定する方法 |
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MISAWA T et al.,Development of Helix-Stabilized Amphipathic Cell-Penetrating Peptides for siRNA Delivery,Journal of Peptide Science, 35th European Peptide Symposium,2018年08月31日,Vol.24, Supplement 2,p.S169 Abstract No.P247,文献全体 |
三澤隆史ほか,親水性分子を細胞内導入を志向した膜透過生ペプチドの開発,日本薬学会第137年会要旨集,2017年03月05日,Abstract No.26U-am13,文献全体 |
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