JP2018513854A - 血糖降下化合物 - Google Patents
血糖降下化合物 Download PDFInfo
- Publication number
- JP2018513854A JP2018513854A JP2017552503A JP2017552503A JP2018513854A JP 2018513854 A JP2018513854 A JP 2018513854A JP 2017552503 A JP2017552503 A JP 2017552503A JP 2017552503 A JP2017552503 A JP 2017552503A JP 2018513854 A JP2018513854 A JP 2018513854A
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- chain
- cysteine
- compound
- seq
- insulin
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/705—Receptors; Cell surface antigens; Cell surface determinants
- C07K14/72—Receptors; Cell surface antigens; Cell surface determinants for hormones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/177—Receptors; Cell surface antigens; Cell surface determinants
- A61K38/179—Receptors; Cell surface antigens; Cell surface determinants for growth factors; for growth regulators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
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Abstract
Description
化合物330の発現及び精製
化合物330の前駆タンパク質は、New England Biolabs社、製品番号C2530Hの大腸菌B系統、BL21株で発現される。前駆タンパク質は、改変pBR322プラスミドから産生され、このプラスミドの遺伝子は、phoAプロモーターにより制御されている。典型的な発酵が36〜72時間行われ、その間にタンパク質が培地中へと分泌される。
タンパク質の結合アフィニティは、ヒトインスリン受容体アイソフォームA(hIR−A)を過剰発現している安定的トランスフェクトが為された293EBNA細胞(EBNA−1を発現する293HEKヒト胚性腎細胞)、C末端にC9エピトープタグを含有するヒトインスリン受容体アイソフォームB(hIR−B)を過剰発現している安定的トランスフェクトが為された293HEK細胞、又はヒトIGF−1受容体(hIGF−1R)を過剰発現している安定的トランスフェクトが為された293HEK細胞から調製された膜上で行われた受容体結合アッセイにおいて決定される。
[表1]
機能的活性は、hIR−A、hIR−B、又はhIGF−1Rの自己リン酸化のELISA定量により決定される。それぞれC末端C9エピトープタグ(TETSQVAPA)を含有しているhIR−A、hIR−B又はhIGF−1Rを過剰発現する、安定的トランスフェクトされたヒト293HEK細胞を、0.1%画分V−無脂肪酸BSA(Sigma−Aldrich社(St.Louis、MO、USA))を補充された無血清培地(DMEM、グルタミンを伴う高グルコース、10mM HEPES、pH7.4、1mMピルビン酸ナトリウム、0.8mg/mLジェネティシン、1%ペニシリン/ストレプトマイシン)中、3倍連続希釈された試験化合物とともに37℃で1時間処置する。氷冷PBSで細胞をリンスし、氷冷NP40緩衝液[1% NP−40(IGEPAL CA−630)、150mM NaCl、50mMトリス、pH7.4、2mMバナジウム酸塩、及びcOmplete(商標)プロテアーゼ阻害剤]で溶解する。
[表2]
化合物330の効果を、ストレプトゾトシン(STZ)処理されたラット糖尿病モデルにおいて検証する。400〜425グラムの体重のオスのSprague−DawleyラットをHarlan Labs、インディアナポリス、インディアナ州から入手する。およそ1週間、馴化させた後、ラットをイソフルランで麻酔し、ストレプトゾトシンを1回注射する(Zanosar(登録商標)、商品番号89256、Teva Parenteral Medicines社、40mg/kg IV)。ストレプトゾトシンの注射を行った3日後、ラットを実験で使用する。非空腹時血糖値が400〜550mg/dlの動物のみ、これらの実験に使用する。
[表3]
配列
ポリペプチド配列(配列番号1)
GIVEQCCTSICSLYQLENYCGSGPAGGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPGSPAGSPTSTEEGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSPAGSPTSTEEGSPAGSPTSTEEGTSTEPSEGSAPGTSESATPESGPGTSESATPESGPGTSESATPESGPGSEPATSGSETPGSEPATSGSETPGSPAGSPTSTEEGTSTEPSEGSAPGTSTEPSEGSAPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPG
ポリペプチド配列(配列番号2)
FVNQHLCGSHLVEALYLVCGERGFFYTKPT
ポリペプチド配列(配列番号3)
MKKNIAFLLASMFVFSIATNAYAGSPGTSTEPSEGSAPGTSESATPESGPGTSESATPESGPGGAPGSGSGSGGSGGIEGRFVNQHLCGSHLVEALYLVCGERGFFYTKPTRGGGGRGIVEQCCTSICSLYQLENYCGSGPAGGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPGSPAGSPTSTEEGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSPAGSPTSTEEGSPAGSPTSTEEGTSTEPSEGSAPGTSESATPESGPGTSESATPESGPGTSESATPESGPGSEPATSGSETPGSEPATSGSETPGSPAGSPTSTEEGTSTEPSEGSAPGTSTEPSEGSAPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPG
配列
ポリペプチド配列(配列番号1)
GIVEQCCTSICSLYQLENYCGSGPAGGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPGSPAGSPTSTEEGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSPAGSPTSTEEGSPAGSPTSTEEGTSTEPSEGSAPGTSESATPESGPGTSESATPESGPGTSESATPESGPGSEPATSGSETPGSEPATSGSETPGSPAGSPTSTEEGTSTEPSEGSAPGTSTEPSEGSAPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPG
ポリペプチド配列(配列番号2)
FVNQHLCGSHLVEALYLVCGERGFFYTKPT
ポリペプチド配列(配列番号3)
MKKNIAFLLASMFVFSIATNAYAGSPGTSTEPSEGSAPGTSESATPESGPGTSESATPESGPGGAPGSGSGSGGSGGIEGRFVNQHLCGSHLVEALYLVCGERGFFYTKPTRGGGGRGIVEQCCTSICSLYQLENYCGSGPAGGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPGSPAGSPTSTEEGTSESATPESGPGSEPATSGSETPGTSESATPESGPGSPAGSPTSTEEGSPAGSPTSTEEGTSTEPSEGSAPGTSESATPESGPGTSESATPESGPGTSESATPESGPGSEPATSGSETPGSEPATSGSETPGSPAGSPTSTEEGTSTEPSEGSAPGTSTEPSEGSAPGSEPATSGSETPGTSESATPESGPGTSTEPSEGSAPG
本発明は、以下の態様を含む。
[1]
A鎖及びB鎖を備える化合物であって、前記A鎖のアミノ酸配列は配列番号1であり、及び前記B鎖のアミノ酸配列は配列番号2であり、ならびに前記A鎖及びB鎖は、前記A鎖の7位のシステインと前記B鎖の7位のシステインの間にジスルフィド結合、前記A鎖の20位のシステインと前記B鎖の19位のシステインの間にジスルフィド結合、及び前記A鎖の6位のシステインと前記A鎖の11位のシステインの間にジスルフィド結合を含有している、前記化合物。
[2]
[1]に記載の化合物、及び1つ以上の薬学的に許容可能な賦形剤を含有する医薬組成物。
[3]
有効量の[1]に記載の化合物、又は有効量の[2]に記載の組成物を、それを必要とする患者に投与することを含む、患者の糖尿病を治療する方法。
[4]
有効量の[1]に記載の化合物、又は有効量の[2]に記載の組成物を、それを必要とする患者に投与することを含む、患者の高血糖症を治療する方法。
[5]
治療における使用のための、[1]に記載の化合物。
[6]
糖尿病の治療における使用のための、[1]に記載の化合物。
[7]
高血糖症の治療における使用のための、[1]に記載の化合物。
[8]
糖尿病の治療のための医薬の製造における、[1]に記載の化合物の使用。
[9]
高血糖症の治療のための医薬の製造における、[1]に記載の化合物の使用。
Claims (9)
- A鎖及びB鎖を備える化合物であって、前記A鎖のアミノ酸配列は配列番号1であり、及び前記B鎖のアミノ酸配列は配列番号2であり、ならびに前記A鎖及びB鎖は、前記A鎖の7位のシステインと前記B鎖の7位のシステインの間にジスルフィド結合、前記A鎖の20位のシステインと前記B鎖の19位のシステインの間にジスルフィド結合、及び前記A鎖の6位のシステインと前記A鎖の11位のシステインの間にジスルフィド結合を含有している、前記化合物。
- 請求項1に記載の化合物、及び1つ以上の薬学的に許容可能な賦形剤を含有する医薬組成物。
- 有効量の請求項1に記載の化合物、又は有効量の請求項2に記載の組成物を、それを必要とする患者に投与することを含む、患者の糖尿病を治療する方法。
- 有効量の請求項1に記載の化合物、又は有効量の請求項2に記載の組成物を、それを必要とする患者に投与することを含む、患者の高血糖症を治療する方法。
- 治療における使用のための、請求項1に記載の化合物。
- 糖尿病の治療における使用のための、請求項1に記載の化合物。
- 高血糖症の治療における使用のための、請求項1に記載の化合物。
- 糖尿病の治療のための医薬の製造における、請求項1に記載の化合物の使用。
- 高血糖症の治療のための医薬の製造における、請求項1に記載の化合物の使用。
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