JP5366807B2 - T細胞のTh1細胞への分化抑制剤 - Google Patents
T細胞のTh1細胞への分化抑制剤 Download PDFInfo
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- JP5366807B2 JP5366807B2 JP2009524389A JP2009524389A JP5366807B2 JP 5366807 B2 JP5366807 B2 JP 5366807B2 JP 2009524389 A JP2009524389 A JP 2009524389A JP 2009524389 A JP2009524389 A JP 2009524389A JP 5366807 B2 JP5366807 B2 JP 5366807B2
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- cells
- pitavastatin
- differentiation
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- atorvastatin
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- C07D215/12—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
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Description
Noseworthyら;N Engl J Med.343巻13号938−52頁(2000) Josephら;J Neuroimmunol.20巻1号39−44頁(1988) The IFNB Multiple Sclerosis Study Group;Neurology 43巻4号655−61頁(1993) Nature,420,78−84,2002 Lancet,363,1607−1608,2004
本発明の目的は、Th1細胞への分化誘導を選択的に抑制し、Th1細胞の活性化に起因する疾患の治療に有用な医薬を提供することにある。
また、本発明は、ピタバスタチン又はその塩を有効成分とするTh1細胞の活性化抑制剤を提供するものである。
また、本発明は、ピタバスタチン又はその塩、並びに薬学的に許容される担体を含有してなるT細胞のTh1細胞への分化抑制用医薬組成物を提供するものである。
また、本発明は、ピタバスタチン又はその塩、並びに薬学的に許容される担体を含有してなるTh1細胞の活性化抑制用医薬組成物を提供するものである。
また、本発明は、ピタバスタチン又はその塩のT細胞のTh1細胞への分化抑制剤製造のための使用を提供するものである。
また、本発明は、ピタバスタチン又はその塩のTh1細胞の活性化抑制剤製造のための使用を提供するものである。
また、本発明は、ピタバスタチン又はその塩を投与するT細胞のTh1細胞への分化抑制方法を提供するものである。
また、本発明は、ピタバスタチン又はその塩を投与するTh1細胞の活性化抑制方法を提供するものである。
また、本発明は、T細胞のTh1細胞への分化抑制のためのピタバスタチン又はその塩を提供するものである。
さらに、本発明は、Th1細胞の活性化抑制のためのピタバスタチン又はその塩を提供するものである。
ピタバスタチン又はその塩は、米国特許第5856336号、特開平1−279866号公報に記載の方法により製造することができる。
(方法)
C57BL/6マウス5匹をミエリンオリゴデンドロサイトグリコプロテイン(MOG)で免疫し、型のごとく多発性硬化症のモデルである実験的自己免疫性脳脊髄炎(EAE)を作成した。免疫後14日目の脾臓細胞を取り出し、CD3抗体及びCD28抗体でコートした24ウェル培養プレートで培養し、ピタバスタチン、アトルバスタチン存在下で、MOGで刺激し、Th1細胞を活性化し、その上清中のTh1サイトカイン(IFN−γ)の濃度をELISA法により測定した。
ピタバスタチン(図中、NKと表記)は10μM以上の濃度で、MOG免疫マウスの脾臓細胞由来のTh1細胞が産生するIFN−γの産生量を有意に低下させ、Th1細胞の活性化を抑制することが示された。アトルバスタチン(図中、アトルバと表記)は25μMで有意にTh1細胞のINF−γ産生を抑制した(図1)。
(方法)
健康成人6名の末梢血より10mLヘパリン採血し、定法に従いFicol−Hypaque法にて単核球を分離した。これらを1×106/mLに調整した後、CD3、CD28抗体でコートした24ウェル培養プレート(Falcon)にまき、IL−12(100ng/mL)存在下で4日間培養し、Th1細胞への分化を誘導した。培養開始時からアトルバスタチン、ピタバスタチン0.01〜10μMを添加し、Th1細胞分化に及ぼすそれぞれの薬剤の効果を検討した。培養終了後、細胞をPBSにて3回洗浄し、型のごとく細胞内のサイトカイン(IFN−γ、IL−4)と細胞表面のCD4を染色し、フローサイトメトリーによりTh1(CD4陽性IFN−γ陽性細胞)、Th2(CD4陽性IL−4陽性細胞)の全CD4陽性T細胞中の比率を求めた。
すなわち、リンパ球を抗CD3抗体と抗CD28抗体で刺激し、細胞内のINF−γ(Th1サイトカイン)とIL−4(Th2サイトカイン)をフローサイトメトリーで測定することにより、ピタバスタチン及びアトルバスタチンの末梢血T細胞のTh1細胞への分化抑制作用とTh2細胞への分化促進作用を比較検討した。
すなわち、その結果、図2に示す如く、アトルバスタチンは10μMでやっとTh1細胞への分化抑制及びTh2細胞への分化促進作用を示したが、ピタバスタチンは1μMから有意にTh1細胞への分化抑制及びTh2細胞への分化促進作用を示した。従って、ピタバスタチンはアトルバスタチンの10倍強力なTh1分化抑制作用及びTh2細胞への分化促進作用を有することが明らかとなった。
Claims (6)
- ピタバスタチン又はその塩を有効成分とするT細胞のTh1細胞への分化抑制剤。
- ピタバスタチン又はその塩を有効成分とするTh1細胞の活性化抑制剤。
- ピタバスタチン又はその塩、並びに薬学的に許容される担体を含有してなるT細胞のTh1細胞への分化抑制用医薬組成物。
- ピタバスタチン又はその塩、並びに薬学的に許容される担体を含有してなるTh1細胞の活性化抑制用医薬組成物。
- ピタバスタチン又はその塩のT細胞のTh1細胞への分化抑制剤製造のための使用。
- ピタバスタチン又はその塩のTh1細胞の活性化抑制剤製造のための使用。
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JP2006325582A (ja) * | 2005-04-28 | 2006-12-07 | Okayama Univ | レポーター遺伝子産物を発現するhcv全長ゲノム複製細胞、並びに、当該細胞を用いたスクリーニング方法およびスクリーニングキット |
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JPN6008041884; 長山 成美、山村 隆: 臨床免疫 vol.40, No.2, 2003, 205-208 * |
JPN7008006429; Youssef, S. et al: Nature vol.420, 200207, 78-84 * |
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US8394827B2 (en) | 2013-03-12 |
EP2168950B1 (en) | 2014-03-12 |
JPWO2009013885A1 (ja) | 2010-09-30 |
WO2009013885A1 (ja) | 2009-01-29 |
EP2168950A1 (en) | 2010-03-31 |
EP2168950A4 (en) | 2010-12-29 |
US20100197726A1 (en) | 2010-08-05 |
US8969378B2 (en) | 2015-03-03 |
US20130059884A1 (en) | 2013-03-07 |
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