JP6835867B2 - フィナステリドとペプチドの結合体 - Google Patents
フィナステリドとペプチドの結合体 Download PDFInfo
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- JP6835867B2 JP6835867B2 JP2018548657A JP2018548657A JP6835867B2 JP 6835867 B2 JP6835867 B2 JP 6835867B2 JP 2018548657 A JP2018548657 A JP 2018548657A JP 2018548657 A JP2018548657 A JP 2018548657A JP 6835867 B2 JP6835867 B2 JP 6835867B2
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- Prior art keywords
- hair
- peptide
- compound
- present
- finasteride
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Description
ただし、下記実施例は本発明を例示するためのものだけでであり、本発明の範囲が下記実施例によって限定されるものではない。
<1−1> ペプチドの合成
<1−1−1> 配列番号3のペプチドの合成
前記実施例<1−1−1>と同様の方法を利用し、配列番号1のペプチド(Glu−Leu−Ile−Glu−His−Gly−Gly−Gly−Arg−Pro−Ala−Asp:ELIEHGGGRPAD)及び配列番号2のペプチド(Ac−Tyr−Lys−Ser−Lys−Lys−Gly−Gly−Trp−Thr−His:Ac−YKSKKGGWTH)を合成した。
ペプチド反応器にペプチジルレジン(1mmol)と1−メチル−2−ピロリドン(NMP)10mlを入れ、1−ヒドロキシベンゾトリアゾール(HOBt)270mg(2.0equiv.)とN,N,N’,N’−テトラメチル−O−(1H−ベンゾトリアゾール−1−イル)ウロニウムヘキサフルオロホスフェート759mg(2.0equiv.)を添加して30分間反応させた。N,N−ジイソプロピルエチルアミン(DIEA)388mg(3equiv.)とフィナステリド類似体(analogue)624mg(2.0equiv.)を添加して常温で24〜72時間反応させ、ろ過して反応されたペプチジル樹脂を収得した。収得された樹脂を、切断溶液(cleavage solution)を用いて常温で2時間反応した後にレジン及び保護基を除去し、ジエチルエーテル10ml(10mmol)を用いて再結晶させてハイブリッドペプチドを収得した。下記に、本発明のフィナステリドとペプチドが共有結合で連結された構造を有する化合物の反応式を具体的に示した。
前記実施例<1−2>で製造されたフィナステリド−CG−ノッキン化合物(化合物1)、フィナステリド−CG−ケラミン2化合物(化合物2)、フィナステリド−CG−WINT化合物(化合物3)及びフィナステリドをそれぞれ10mg/mlの濃度で蒸留水に溶解させた。
その結果、フィナステリド自体は水に殆ど溶解していないのに対し、本発明の化合物1〜3の全ては水に完全に溶解していることを確認した(図1)。
本発明の化合物が5α−レダクターゼの活性に及ぼす効果を確認するため、先ず、5α−レダクターゼが多く存在するものとして知られている肝細胞抽出物をタンパク質抽出方法を介して回収した。テストステロンをフィナステリドまたは本発明の化合物1〜3と先ず反応させた後、当該溶液に肝細胞抽出物を入れて37℃で1時間反応させ、テストステロンに肝細胞抽出物を入れて37℃で1時間反応させて得られたものを対照群にした。反応を終了させた後、HPLCを介してテストステロンとDHTの量を確認した。前記HPLC分析は、次の条件で実施した。
− C18カラム
− UV 240nm
− 流速:1ml/分
− 移動相:A:0.1%Formic acid in water
B:0.1%Formic acid in acetonitrile
− 濃度勾配:0分 B 5%〜 30分 B 80%
実施例<1−2>で合成された化合物に関し、が成長因子に対する類似効果及び抑制効果を分析するため、リッジノなど(Rizzino、et al.Cancer Res.48:4266(1988))を参照して、HaCaT角質細胞株(韓国細胞株銀行、Korean Cell Line Bank)を利用したSRB(Sulforhodamine B、Sigma)比色分析法を実施した。
前記実験例3と同様の方法により、本発明の化合物がHHDPC細胞(ATCC/米国)の増殖に対する効果を確認した。このとき、陽性対照群としてはMNX(10uM)及びIGF−1(1uM)を用いた。
その結果、本発明の化合物がHHDPC細胞の増殖及び形態学的模様を変えたことを確認した(図4a)。さらに、フィナステリドで処理した場合と比べて、本発明の化合物で処理した場合は、HHDPC細胞の増殖が大幅に増加したことを確認した(図4b)。
48時間培養したHHDPC細胞を実施例<1−2>で合成した本発明の化合物で処理し、5時間経過した後、WNTタンパク質の代表的なシグナル伝達経路によって発毛の促進に必須なシグナル物質であるベータ−カテニンの核内への送達(translocation)に及ぼす効果を測定した。ベータ−カテニンの発現量は、ベータ−カテニンに対する抗体(SantaCruz、米国)を利用したウエスタンブロットを介して観察し、且つ同一の抗体を利用した免疫染色化学法を介してベータ−カテニンが核内に送達されたか否かを確認した。具体的に、HHDPC細胞を6−ウェルプレートの各ウェル当りに100,000細胞ずつ接種した後、24時間、37℃で、CO2インキュベーターに培養した。培地を無血清DMEM培地に変更し、フィナステリド、フィナステリド−WINT化合物、WINTをそれぞれ5及び50μMの濃度で細胞を処理した後、24時間培養した。タンパク質抽出キットを利用して核及び細胞質タンパク質をそれぞれ抽出した後、下記の条件下でウエスタンブロットを実施した。
− 12%SDS−PAGEを調製
− SDS−PAGEに15μgのタンパク質をローディング
− PVDF膜に転写
− 常温で1時間、5%の乾燥脱脂乳溶液でブロッキング
− 1/3000の濃度で2時間、常温で1次抗体(抗−ベータ−カテニン抗体、抗−HDAC、抗−アルファチューブリン抗体)を反応
− PBSTで10分間3回洗浄
− 1/5000の濃度で1時間、常温で2次抗体を反応
− PBSTで15分間3回洗浄
− 検出
48時間培養したHHDPC細胞を実施例<1−2>で合成した本発明の化合物等で処理し、5時間経過した後、BMPタンパク質の代表的なシグナル伝達経路によって本発明の化合物の、脱毛の抑制に必須なシグナル物質であるphospho−Smad1/5/8の活性に及ぼす効果を測定した。phospho−Smad1/5/8の発現量は、phospho−Smad1/5/8に対する抗体を利用したウエスタンブロットを介して確認した。具体的に、HHDPC細胞を6−ウェルプレートの各ウェル当りに100,000細胞ずつ接種した後、24時間、37℃で、CO2インキュベーターに培養した。培地を無血清DMEM培地に変更した後、フィナステリド及びフィナステリド−ノッキン化合物をそれぞれ0.5、5及び50μMの濃度で細胞を処理した後、24時間培養した。タンパク質抽出キットを利用して核及び細胞質タンパク質をそれぞれ抽出した後、下記の条件下でウエスタンブロットを実施した。
− 12%SDS−PAGEを調製
− SDS−PAGEに15μgのタンパク質をローディング
− PVDF膜に転写
− 常温で1時間、5%の乾燥脱脂乳溶液でブロッキング
− 1/3000の濃度で2時間、常温で1次抗体(抗−phospho−Smad1/5/8抗体、抗−HDAC、抗−アルファチューブリン抗体)を反応
− PBSTで10分間3回洗浄
− 1/5000の濃度で1時間、常温で2次抗体を反応
− PBSTで15分間3回洗浄
− 検出
本発明の化合物がDHTによって発現される代表的な脱毛タンパク質であるDKK−1のmRNA発現に及ぼす効果を確認した。具体的に、HHDPC細胞を6−ウェルプレートの各ウェル当りに100,000細胞ずつ接種した後、24時間、37℃で、CO2インキュベーターに培養した。テストステロンを、フィナステリドまたは本発明の化合物1〜3のフィナステリド−ノッキン化合物、フィナステリド−ケラミン2化合物及びフィナステリド−WINT化合物と先ず反応させた後、当該溶液に肝細胞抽出物を入れて37℃で1時間反応させ、テストステロンに肝細胞抽出物を入れて37℃で1時間反応させたものを陽性対照群とした。培地を無血清DMEM培地に変更した後、フィナステリド及びフィナステリド−ノッキン化合物、フィナステリド−ケラミン2化合物及びフィナステリド−WINT化合物をそれぞれ50μMの濃度で細胞を処理した後、24時間培養した。RNA抽出キットを利用して細胞のRNAを抽出した後、下記プライマーを利用してRT−PCRを実施した。
1.DKK−1
− 正方向プライマー:(5’)TGATGAGTACTGCGCTAGTC(3’)(配列番号4)
− 逆方向プライマー:(5’)CTCCTATGCTTGGTACACAC(3’)(配列番号5)
2.GAPDH
− 正方向プライマー:(5’)GGAGCCAAAAGGGTCATCAT(3’)(配列番号6)
− 逆方向プライマー:(5’)GTGATGGCATGGACTGTGGT(3’)(配列番号7)
本発明の化合物が毛髪の成長に対する効果を、動物実験を介して確認した。具体的に、7週齢の雄C57BL/6マウスの背中の毛を、除毛クリームを利用して全て除去した。PBS、フィナステリド及び本発明のフィナステリド−WINT化合物を100μg/mlの濃度で調製した後、一日に1回ずつマウスの背中の皮膚に均一に塗布し、マウスの背中の皮膚の色が黒くなる時点から写真を撮影して観察した。
フィナステリドはステロイド系のホルモンを制御するための薬物であるため、これを経口投与する場合は、血液に拡散することによって全身毒性を誘発するなどの副作用が発生し得る。したがって、皮膚に塗布する際にも皮膚を透過する場合は、全身に浸透して毒性を誘発する可能性があり、皮膚を透過しない場合は、頭皮内に残って全身に拡散しないため、フィナステリドの副作用を抑制することが可能である。よって、本発明者達は、3次元人工皮膚にフィナステリドと本発明のフィナステリド−WINT化合物を塗布した後、皮膚を透過するのか否かを確認した。
前記実施例<1−2>で製造された本発明の化合物を含み、且つ下記組成からなる柔軟化粧水を、一般的な化粧水の製造方法によって製造した。
前記実施例<1−2>で製造された本発明の化合物を含み、且つ下記組成からなる栄養クリームを、一般的な栄養クリームの製造方法によって製造した。
前記実施例<1−2>で製造された本発明の化合物を含み、且つ下記組成からなる乳液を、一般的な化粧水の製造方法によって製造した。
前記実施例<1−2>で製造された本発明の化合物を含み、且つ下記組成からなるエッセンスを、一般的なエッセンスの製造方法によって製造した。
前記実施例<1−2>で製造された本発明の化合物を含み、且つ下記組成からなるヘアセラムを、一般的なヘアセラムの製造方法によって製造した。
前記実施例<1−2>で製造された本発明の化合物を含み、且つ下記組成からなるヘアトナーを、一般的なヘアトナーの製造方法によって製造した。
Claims (10)
- 下記式で表される構造を有する化合物であって、
[式中、Peptideはペプチドを表す。]
前記ペプチドは、8から15個のアミノ酸配列からなり、
前記ペプチドは、水溶性ペプチドであり、
前記水溶性ペプチドは、アルギニン(Arg)、ヒスチジン(His)、リシン(Lys)、アスパラギン酸(Asp)、グルタミン酸(Glu)、セリン(Ser)、トレオニン(Thr)、アスパラギン(Asn)、グルタミン(Gln)、システイン(Cys)、セレノシステイン(Sec)、グリシン(Gly)及びプロリン(Pro)からなる群より選択されるアミノ酸の割合が70%以上である、化合物。 - 前記アミノ酸は、アルギニン(Arg)、ヒスチジン(His)、リシン(Lys)、アスパラギン酸(Asp)及びグルタミン酸(Glu)からなる群より選択される電荷を帯びるアミノ酸である請求項1に記載の化合物。
- 前記水溶性ペプチドは、アルギニン(Arg)、ヒスチジン(His)、リシン(Lys)、アスパラギン酸(Asp)及びグルタミン酸(Glu)からなる群より選択される、電荷を帯びるアミノ酸が3個以上である請求項1に記載の化合物。
- 前記水溶性ペプチドは、疎水性側鎖を有するアミノ酸が5個以下である請求項1に記載の化合物。
- 前記水溶性ペプチドは、疎水性側鎖を有するアミノ酸が3個以下である請求項4に記載の化合物。
- 前記疎水性側鎖を有するアミノ酸は、アラニン(Ala)、バリン(Val)、イソロイシン(Ile)、ロイシン(Leu)、メチオニン(Met)、フェニルアラニン(Phe)、チロシン(Tyr)及びトリプトファン(Trp)からなる群より選択される請求項4に記載の化合物。
- 前記ペプチドは、配列番号1のアミノ酸配列からなるノッキンペプチド、配列番号2のアミノ酸配列からなるケラミン2ペプチド、及び配列番号3のアミノ酸配列からなるWINTペプチドからなる群より選択される請求項1に記載の化合物。
- 請求項1から請求項7のいずれか一項に記載の化合物を含有する脱毛防止または発毛促進用薬学的組成物。
- 請求項1から請求項7のいずれか一項に記載の化合物を含有する脱毛防止または発毛促進用化粧料組成物。
- 化粧水、乳液、栄養クリーム、マッサージクリーム、エッセンス、アイクリーム、クレンジングクリーム、クレンジングフォーム、クレンジングウォーター、パック、スプレー、散剤、ヘアトニック、ヘアクリーム、ヘアローション、ヘアシャンプー、ヘアリンス、ヘアコンディショナー、ヘアスプレー、ヘアエアロゾル、ポマード、ゾルゲル、エマルション、オイル、ワックス及びエアロゾルからなる群より選択される剤形を有する請求項9に記載の化粧料組成物。
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