JP4762381B1 - 抗リーシュマニア化合物及び抗リーシュマニア薬 - Google Patents
抗リーシュマニア化合物及び抗リーシュマニア薬 Download PDFInfo
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- JP4762381B1 JP4762381B1 JP2011517547A JP2011517547A JP4762381B1 JP 4762381 B1 JP4762381 B1 JP 4762381B1 JP 2011517547 A JP2011517547 A JP 2011517547A JP 2011517547 A JP2011517547 A JP 2011517547A JP 4762381 B1 JP4762381 B1 JP 4762381B1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/40—Unsaturated compounds
- C07C59/76—Unsaturated compounds containing keto groups
- C07C59/80—Unsaturated compounds containing keto groups containing rings other than six-membered aromatic rings
- C07C59/82—Unsaturated compounds containing keto groups containing rings other than six-membered aromatic rings the keto group being part of a ring
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P33/00—Antiparasitic agents
- A61P33/02—Antiprotozoals, e.g. for leishmaniasis, trichomoniasis, toxoplasmosis
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
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- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
Description
(1)脂質成分の抽出
褐藻類ヒバマタ目ホンダワラ科アズマネジモク(Sargassum yamadae)(294.4g)をメタノールとクロロホルムの等量混合溶媒(1.4L)に1日浸漬し、吸引濾過により残渣を除き脂質成分を抽出した。さらに、この残渣についてメタノールとクロロホルムの等量混合溶媒(1.4L)に1日浸漬し、吸引濾過を行うことにより脂質成分を抽出した。溶媒を減圧下で除去し、得られた抽出物(31.2g)を水とクロロホルムにより二層分配し、脂質成分(23.8g)を得た。なお、ネジモクは採取後人工海水により洗浄して恒温除湿室で乾燥し、粉砕後実験に使用するまで−20℃で保存した。
(1)に示す操作により得られた脂質成分のうち、5.14gを分別し、図1に示すように酢酸エチルーヘキサン系の溶媒の割合を変えながらオープンカラムクロマトグラフィー(φ7×45cm)によりA〜Pの16の画分に分けた。
上述の脂質成分の抽出操作により得られた脂質成分のうち分離操作1回目で使用しなかった残りの18.6gについて酢酸エチル−ヘキサン系の溶媒の割合を変えながら図6に示すようにオープンカラムクロマトグラフィー(φ7×45cm)によりA’〜O’の15の画分に分けた。
(1)in vitro抗リーシュマニア活性測定
上述した手順により単離した式(1)〜(6)で表される化合物について下記に示す条件の下、生理活性測定を行った。リーシュマニア原虫として、Leishmania.major promastigotesを選択し、蛍光蛋白egfp遺伝子を導入したL.major/egfp promastigotesを用いて、上記化合物をサンプルとして下記の条件で成長阻害率を求めた。
25℃において96-穴プレートを用いて10 %ウシ胎児血清25 mMおよびHepes Buffer(ICN Biomedeivals Inc., Aurora, OH)を添加した199培地(日水製薬)中でL.major/egfp promastigotesを培養した。次に、96穴プレートの各ウェルにL.major/egfp 原虫100 μL(1×106 cell/mL)及びサンプル溶液100 μL(DMSOに溶解)を加え、25℃で72時間培養を行った。その後、蛍光マイクロプレート読み取り装置(Fluoroscan Ascent FL, 大日本製薬)を用いて励起光485 nm、放射光538 nmでL.major/egfp promastigotesの蛍光シグナルを測定した。また、標準物質としてAmphotericin Bを用いた場合の成長阻害率を100%として、各試料の阻害率を示した。
上述の手順により単離した式(3)で表される化合物についてin vivoにおける抗リーシュマニア活性を評価するためにリーシュマニア症マウスモデルを用いて治療効果を調べた。
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US8373006B2 (en) | 2010-10-19 | 2013-02-12 | Aoyama Gakuin Educational Foundation | Anti-leishmanial compound and anti-leishmanial drug |
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EP1779892A4 (en) | 2004-07-30 | 2010-05-19 | Japan Health Science Found | AGAINST PROTOZOON |
JP2006321728A (ja) | 2005-05-17 | 2006-11-30 | Osaka Bioscience Institute | 新規な抗リーシュマニア医薬組成物 |
US8373006B2 (en) | 2010-10-19 | 2013-02-12 | Aoyama Gakuin Educational Foundation | Anti-leishmanial compound and anti-leishmanial drug |
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JP2012131807A (ja) * | 2010-10-19 | 2012-07-12 | Aoyama Gakuin | 抗リーシュマニア薬 |
JP2012131804A (ja) * | 2010-10-19 | 2012-07-12 | Aoyama Gakuin | 抗リーシュマニア化合物及び抗リーシュマニア薬 |
JP2012131805A (ja) * | 2010-10-19 | 2012-07-12 | Aoyama Gakuin | 抗リーシュマニア化合物及び抗リーシュマニア薬 |
JP2012131806A (ja) * | 2010-10-19 | 2012-07-12 | Aoyama Gakuin | 抗リーシュマニア薬 |
JP4987173B2 (ja) * | 2010-10-19 | 2012-07-25 | 学校法人青山学院 | 抗リーシュマニア薬 |
US8373006B2 (en) | 2010-10-19 | 2013-02-12 | Aoyama Gakuin Educational Foundation | Anti-leishmanial compound and anti-leishmanial drug |
US8809555B2 (en) | 2010-10-19 | 2014-08-19 | Aoyama Gakuin Educational Foundation | Anti-leishmanial compound and anti-leishmanial drug |
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