JP6118392B2 - 非麻薬性鎮痛作用を有する合成ペプチド - Google Patents
非麻薬性鎮痛作用を有する合成ペプチド Download PDFInfo
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- JP6118392B2 JP6118392B2 JP2015501616A JP2015501616A JP6118392B2 JP 6118392 B2 JP6118392 B2 JP 6118392B2 JP 2015501616 A JP2015501616 A JP 2015501616A JP 2015501616 A JP2015501616 A JP 2015501616A JP 6118392 B2 JP6118392 B2 JP 6118392B2
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- A—HUMAN NECESSITIES
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- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
- A61P29/02—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID] without antiinflammatory effect
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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- Engineering & Computer Science (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Peptides Or Proteins (AREA)
Description
1)ホルモン活性、カルシウムに対する影響及びリンの代謝。これに関連して、カルシトニンは、子どもへの奇形及び長期にわたる影響の可能性により、妊娠中及び陣痛緩和に使用することはできない。
2)免疫学的活性。よって、カルシトニンの長期使用の際、骨粗しょう症の治療と予防の場合と同様に、中和抗体が形成され、カルシトニンの使用の効果を減少させる(非特許文献6)。
3)全長カルシトニンは、多くのアミロイド形成タンパク質で使用することが一般的であるアミロイド形成配列Gly2−Gln14を含む(非特許文献7)。
4)全長カルシトニン合成及びこの製剤を用いた治療の費用は、非常に高額である。従って、カルシトニンは、代替的な手段のない治療、例えば、パジェット病の場合にのみ使用される希少薬とみなされる(非特許文献8)。
前記一般式1[SEQ ID NO:1]は、
H-XDL-XDL1-XDL2-L-Lys-L-Leu-XDL3-L-Thr-R2(I)であり、ここで:
Hは、水素であり、
XDLは、アミノ酸が欠如しているか又はL-Tyrであり、
XDL1は、次のアミノ酸のうちの1つであり:L-Leu、L-Ala又はD-Ala、
XDL2は、次のアミノ酸のうちの1つであり:L-His、D-His、L-Ala又はD-Ala、
XDL3は、次のアミノ酸のうちの1つであり:L-Gln、L-Ala又はD-Ala;
R2は、OMe又はNH2であり、
前記一般式2[SEQ ID NO:2]は、
H-D-Thr-XDL4-D-Leu-D-Lys-XDL5-XDL6-XDL7-R2(II)であり、ここで、
Hは、水素であり、
XDL4は、次のアミノ酸のうちの1つであり:D-Gln、D-Ala又はL-Ala;
XDL5は、次のアミノ酸のうちの1つであり:D-His、L-His、D-Ala又はL-Ala、
XDL6は、次のアミノ酸のうちの1つであり:D-Leu、D-Ala又はL-Ala、
XDL7は、アミノ酸が欠如しているか又はD-Tyrであり、
R2は、OMe又はNH2である。
1.L−アラニンによるサケカルシトニンの位置18、19及び21でのアミノ酸の置換は、元のペプチドの本質的な活性損失を引き起こす。
2.L−アラニンによる位置16、17及び20でのアミノ酸の置換は、元のペプチド活性に本質的に影響を与えない。
3.断片位置17でのアラニンによるヒスチジンの置換の場合に、ペプチド活性の増加の明確な傾向が観察される。
4.CT16−21でのD−アラニンによる天然アミノ酸の置換は、天然配列とは対照的に、本質的な活性度の変化につながらない。
5.位置17でのD−Alaによる置換及び位置16及び20でのL−Alaによる置換を有するペプチドが、もっとも活性な化合物である。
6.対応するD−アミノ酸によるCT16−21での天然のL−アミノ酸の置換は、位置17でのL−ヒスチジンのD−ヒスチジンによる置換を除いて、本質的な活性の増加を引き起こさなかった。この場合、活性が実質的に増加するのに対して、動物の半数は疼痛反応の第2ピークを有さなかった。
6.メチルエーテル又はヒドラジドでの末端修飾により、ペプチドの活性を損なわずに、ペプチドの安定性を増加することができた。
7.D体によるL体のアミノ酸の置換及びL体によるD体のアミノ酸の置換を有するアミノ酸の逆配列を有する式(II)のレトロインバーソ型ペプチドが、高い鎮痛作用を有する。
Claims (1)
- 非麻薬性の鎮痛作用を有する麻酔薬としての一般式1[SEQ ID NO:1]の合成ペプチドか、又は一般式2[SEQ ID NO:2]でのL型アミノ酸のD型アミノ酸による置換及びD型アミノ酸のL型アミノ酸による置換を有するアミノ酸の逆配列を有する一般式(I)のレトロインバーソ型ペプチドであり、
前記一般式1[SEQ ID NO:1]は、
H-XDL-XDL1-XDL2-L-Lys-L-Leu-XDL3-L-Thr-R2(I)であり、ここで:
Hは、水素であり、
XDLは、アミノ酸が欠如しているか又はL-Tyrであり、
XDL1は、次のアミノ酸のうちの1つであり:L-Leu、L-Ala又はD-Ala、
XDL2は、次のアミノ酸のうちの1つであり:D-His、L-Ala又はD-Ala、
XDL3は、次のアミノ酸であり:L-Gln;
R2は、OMe又はNH2であるか、
前記一般式2[SEQ ID NO:2]は、
H-D-Thr-XDL4-D-Leu-D-Lys-XDL5-XDL6-XDL7-R2(II)であり、ここで:
Hは、水素であり、
XDL4は、次のアミノ酸であり:D-Gln;
XDL5は、次のアミノ酸のうちの1つであり:L-His、D-Ala又はL-Ala、
XDL6は、次のアミノ酸のうちの1つであり:D-Leu、D-Ala又はL-Ala、
XDL7は、アミノ酸が欠如しているか又はD-Tyrであり、
R2は、OMe又はNH2であることを特徴とする、
前記一般式1[SEQ ID NO:1]の合成ペプチドか、又は前記一般式2[SEQ ID NO:2]でのL型アミノ酸のD型アミノ酸による置換及びD型アミノ酸のL型アミノ酸による置換を有するアミノ酸の逆配列を有する一般式(I)のレトロインバーソ型ペプチド。
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PCT/RU2012/001036 WO2013141750A1 (ru) | 2012-03-22 | 2012-12-07 | Синтетические пептиды с ненаркотическим типом анальгетического действия |
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