JP5950656B2 - NF−κB阻害剤 - Google Patents
NF−κB阻害剤 Download PDFInfo
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- JP5950656B2 JP5950656B2 JP2012083919A JP2012083919A JP5950656B2 JP 5950656 B2 JP5950656 B2 JP 5950656B2 JP 2012083919 A JP2012083919 A JP 2012083919A JP 2012083919 A JP2012083919 A JP 2012083919A JP 5950656 B2 JP5950656 B2 JP 5950656B2
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Description
アカモクは岩手県沿岸で採取したものを用いた。アカモクを粉砕した後、得られたアカモク粉砕物に精製蒸留水を加えてポッターホモジナイザーで10〜60分間懸濁抽出し、その抽出物を、遠心分離機を用いて室温(10〜25℃)下、3000回転、30分間遠心した。遠心後、その上清液を回収し、膜ろ過法で、分子量3000以下のアカモク水抽出物を単離した。かかるアカモク水抽出物を凍結乾燥し、実験に使用するときには精製蒸留水に溶解して用いた。
2−1 骨芽細胞の前培養方法
骨芽細胞(MC3T3−E1)の前培養は、文献(Yamaguchi M, Weitzmann MN: Vitamin K2 stimulates osteoblastogenesis and suppresses osteoclastogenesis by NF-κB activation. Int J Mol Med 27:3-14 (2011))記載の方法にしたがって行った。すなわち、12穴の培養プレートに10% 牛胎児血清(fetal bovine serum;FBS)を含むα−MEM(α-modified essential medium)(インヴィトロゲン社製)培養液(以下、単に培養液という)1mlを添加し、骨芽細胞(細胞数1x105cells/ml/well)を含有させ、CO2インキュベーター中で37℃、3日間前培養を行った。
アカモク水抽出物を用いた骨芽細胞の石灰化解析は、文献(Yamaguchi M, Weitzmann MN: Vitamin K2 stimulates osteoblastogenesis and suppresses osteoclastogenesis by NF-κB activation. Int J Mol Med 27:3-14 (2011))記載の方法を基に、以下の〔1〕〜〔8〕に示す手順にしたがって行った。
〔1〕「2−1 骨芽細胞の前培養方法」の項目に記載の方法により前培養した骨芽細胞を、石灰化基質(100μg/ml L−アスコルビン酸[L-ascorbic acid]及び4mM β-グリセロリン酸[β-glycerophosphate])、TNF−α(5ng/ml)(シグマ社製)、及び実施例1に記載の方法で単離したアカモク水抽出物(5、10及び25μg/ml培養液)を含む培養液(0.8ml)中で、21日間培養した。なお、コントロールとして、培養液、石灰化基質を含む培養液、並びに石灰化基質及びTNF−αを含む培養液を用いた。それぞれの培養液は、3日間ごとに新しいものに交換した。
〔2〕培養液を除去した培養プレートに生理食塩水(phosphate buffered saline;PBS)1mlを各培養プレートに加え、細胞を洗浄した。
〔3〕その後、4℃で冷却した75%エタノール(0.5ml)を各培養プレートに加え、4℃で30分間静置することにより細胞を固定した後、エタノールを除去した。
〔4〕精製蒸留水1mlを加えて洗浄後、2時間空気乾燥した。
〔5〕空気乾燥後、40mM 1%アリザリンレッド(Alizarin Red-S)の0.5mlを各培養プレートに加え、30分間室温に静置することにより、アリザリンレッド染色を行った。
〔6〕染色液を除去し、精製蒸留水1mlを加えて、4回洗浄した。
〔7〕洗浄後、一夜空気乾燥し、染色した培養プレートをスキャナーで複写し、データ化した。
〔8〕骨芽細胞の石灰化の定量化のために、10%塩化セチルピリジニウム(cetylpyridium chloride)溶液(シグマ社製)を乾燥した培養プレートに添加して石灰化したカルシウムを溶解し、マイクロプレートリーダーを用いて570nmの波長で吸光度を測定した。
2−3−1 骨芽細胞を用いたルシフェラーゼアッセイ法
骨芽細胞を用いたルシフェラーゼアッセイ法は、文献(Yamaguchi M, Weitzmann MN: Vitamin K2 stimulates osteoblastogenesis and suppresses osteoclastogenesis by NF-κB activation. Int J Mol Med 27:3-14 (2011))記載の方法を基に、以下の〔1〕〜〔5〕に示す手順にしたがって行った。
〔1〕骨芽細胞(2x104cells/0.1ml/well)を24時間培養し、培養後の骨芽細胞に、1ng/ml培養液のnuclear factor-kappa B (NF-κB)-luciferase plasmid (NF-κB-ルシフェラーゼプラスミッド)(バイオサイエンス社製)をトランスフェクションした。
〔2〕トランスフェクションして5時間培養後、TNF−α(1ng/ml 培養液)(サンタクルズバイオテクノロジー社製)を含む、実施例1に記載の方法で単離したアカモク水抽出物(5、25、50又は100μg/ml培養液)を添加したアカモク水抽出物含有培養液に培地を交換し、24時間培養した。なお、コントロールとして培養液、TNF−αを含む培養液、及びアカモク水抽出物(5、25、50又は100μg/ml培養液)を含む培養液で培養した細胞を用いた。
〔3〕培養後、アカモク水抽出物含有培養液を除去し、細胞溶解用溶液(プロメガ社製、20μl)を培養プレートに添加して、30分間振とうしながら細胞を溶解した。
〔4〕得られた細胞溶解液にルシフェラーゼアッセイの基質溶液を添加し、ルミノアッセイ(luminoassay)計(ターナーデザイン社製)で発光強度をカウントした。
〔5〕ルシフェラーゼ活性は、測定カウント(arbitrary unit)数として表示した。
破骨細胞を用いたルシフェラーゼアッセイ法は、文献(Yamaguchi M, Weitzmann MN: Vitamin K2 stimulates osteoblastogenesis and suppresses osteoclastogenesis by NF-κB activation. Int J Mol Med 27:3-14 (2011))記載の方法を基に、以下の〔1〕〜〔5〕に示す手順にしたがって行った。
〔1〕破骨前駆細胞(RAW267.4)(2x104cells/0.1ml/well)を24時間培養し、培養後の破骨前駆細胞にNF-κB-luciferase plasmid(バイオサイエンス社製)をトランスフェクションした。
〔2〕トランスフェクションして5時間培養後、RANKL(30ng/ml培養液)(R&Dシステム社製)を含む、実施例1に記載の方法で単離したアカモク水抽出物(5、25、50又は100μg/ml培養液)を添加したアカモク水抽出物含有培養液に培地を交換し、24時間培養した。なお、コントロールとして培養液、TNF−αを含む培養液、及びアカモク水抽出物(5、25、50又は100μg/ml培養液)を含む培養液で培養した細胞を用いた。
〔3〕培養後、アカモク水抽出物含有培養液を除去し、細胞溶解用溶液(プロメガ社製、20μl)を培養プレートに添加して、30分間振とうしながら細胞を溶解した。
〔4〕得られた細胞溶解液にルシフェラーゼアッセイの基質溶液を添加し、ルミノアッセイ(luminoassay)計(ターナーデザイン社製)で発光強度をカウントした。
〔5〕ルシフェラーゼ活性は、測定カウント(arbitrary unit)数として表示した。
破骨前駆細胞(RAW267.4)(1x104cells/0.2ml培養液/well)に、破骨細胞形成を誘導する、anti-poly-histidine antibody(2.5μg/ml)(R&Dシステム社製)でクロスリンクしたRANKL(30ng/ml培養液)(R&Dシステム社製)、及び、実施例1に記載の方法で単離したアカモク水抽出物(5、25、50又は100μg/ml培養液)を添加したアカモク水抽出物含有培養液中で、細胞を6日間培養した。なお、コントロールとして、培養液中で培養した細胞を用いた。培養後、形成された破骨細胞は、破骨細胞のマーカー酵素であるtartrate resistant acid phosphatase(TRAP)活性をleukocyte acid phosphatase kit (シグマ社製)を使用して破骨細胞を染色した。3以上の核を有する破骨細胞をTRAP陽性細胞として計数した。
各値の有意差は、one-way analysis of variance(ANOVA)とTukey-Kramer multiple comparisons post testを用いて、解析した。p<0.05を有意差ありとした。
3−1 骨芽細胞における、本発明のアカモク水抽出物のNF−κB活性化阻害効果
TNF−αは、細胞内のNF−κB活性化シグナルを介して、多彩な細胞機能を調節しており、例えば骨芽細胞において、TNF−αは骨芽細胞の石灰化を抑制することが知られている(非特許文献4、5、Yamaguchi M, Weitzmann MN: Vitamin K2 stimulates osteoblastogenesis and suppresses osteoclastogenesis by NF-κB activation. Int J Mol Med 27:3-14 (2011)、Li Y, Li A, Strait K, Zhang H, Nanes MS and Weitzmann MN: Endogenous TNFalpha Lowers Maximum Peak Bone Mass and Inhibits Osteoblastic Smad Activation, through NF-kappaB. J Bone Miner Res 22: 646-655 (2007))。本実験においても、骨芽細胞をTNF−α(1ng/ml 培養液)を添加して培養すると骨芽細胞の石灰化が阻害されることが確認された。かかる骨芽細胞におけるTNF−αによる石灰化阻害は、実施例1に記載の方法により単離されたアカモク水抽出物(50及び100μg/ml培養液)の添加により、有意に抑制されることが明らかとなった。
以上の結果は、本発明のアカモク水抽出物が、骨芽細胞におけるNF−κBの活性化を阻害することを示すとともに、本発明のアカモク水抽出物が、病態時に血清中のTNF−α増加により引き起こされる骨芽細胞の機能低下を抑制し、骨芽細胞の石灰化による骨修復を増進させる作用を有していることを示唆している。
破骨前駆細胞において、RANKLの受容体であるRANKを介した破骨細胞への分化誘導が起こると、破骨細胞が形成されることが知られている。かかる破骨細胞形成におけるアカモク水抽出物(5、25、50及び100μg/ml)の阻害効果を調べた。その結果、RANKL(30ng/ml)による破骨細胞形成は、アカモク水抽出物(50及び100μg/ml)の添加により有意(P<0.01)に抑制されることが明らかとなった。なお、アカモク水抽出物による破骨細胞形成阻害効果は、細胞毒性によるものでないことは確認した。
以上の結果は、本発明のアカモク水抽出物が、破骨前駆細胞におけるNF−κBの活性化を阻害することを示すとともに、本発明のアカモク水抽出物が、関節炎時に増加する、RANKLによる破骨前駆細胞から破骨細胞への形成増進による関節骨破壊を抑制できる可能性を示唆している。
Claims (5)
- 3000以下の分子量からなるアカモク(Sargassum horneri)の水抽出物を有効成分として含有することを特徴とするNF−κB阻害剤。
- 請求項1に記載のNF−κB阻害剤を含有することを特徴とするNF−κBによる転写活性化を阻害するための組成物。
- 3000以下の分子量からなるアカモク水抽出物を有効成分として含有することを特徴とするNF−κBの転写活性化に起因する関節骨破壊の抑制剤。
- 3000以下の分子量からなるアカモク水抽出物を有効成分として含有することを特徴とするNF−κBの転写活性化に起因する悪性腫瘍の治療剤。
- 3000以下の分子量からなるアカモク水抽出物を有効成分として含有することを特徴とするNF−κBの転写活性化に起因する炎症性疾患の治療剤。
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| US14/478,192 US20140377305A1 (en) | 2012-04-02 | 2014-09-05 | Method for treating disease associated with transcription activation by nf-kb |
| US15/200,234 US10463705B2 (en) | 2012-04-02 | 2016-07-01 | Method for treating disease associated with transcription activation by NF-κB |
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| KR20170088189A (ko) * | 2016-01-22 | 2017-08-01 | 테 퐁 민 인터내셔널 코., 엘티디. | 알레르기-억제 모자반 추출물, 이의 제조 방법 및 이의 응용 |
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| US9937216B2 (en) | 2016-02-26 | 2018-04-10 | Maruhachi Muramatsu, Inc. | Method for suppressing proliferation and/or inducing apoptosis of cancer cells |
| KR101935471B1 (ko) | 2017-08-01 | 2019-01-04 | 제주대학교 산학협력단 | 괭생이모자반 효소 처리물을 이용한 항염증용 조성물 |
| KR101998511B1 (ko) * | 2018-01-29 | 2019-07-09 | 동의대학교 산학협력단 | 톱니모자반 추출물을 포함하는 골다공증 예방 또는 치료용 조성물 |
| JP7018042B2 (ja) * | 2018-11-13 | 2022-02-09 | チェジュ ナショナル ユニバーシティー インダストリー-アカデミック コーポレーション ファウンデーション | アカモク抽出物を用いた肺損傷改善または呼吸器疾患改善用組成物 |
| KR102245814B1 (ko) * | 2018-11-13 | 2021-04-28 | 제주대학교 산학협력단 | 괭생이모자반 추출물을 이용한 호흡기 질환 개선용 조성물 |
| KR102245811B1 (ko) * | 2018-11-13 | 2021-04-28 | 제주대학교 산학협력단 | 괭생이모자반 추출물을 이용한 폐 손상 개선용 조성물 |
| JP7075070B2 (ja) * | 2019-08-20 | 2022-05-25 | 株式会社マルハチ村松 | 排尿障害を予防または改善するための機能性食品 |
| KR102311887B1 (ko) * | 2019-12-16 | 2021-10-13 | 전남대학교 산학협력단 | 괭생이모자반 추출물을 유효성분으로 포함하는 간질환 예방 또는 치료용 약학적 조성물 |
| KR102507928B1 (ko) * | 2020-07-01 | 2023-03-09 | 국립해양생물자원관 | 괭생이모자반 추출물을 유효성분으로 함유하는 비용종 질환 예방 또는 치료용 조성물 |
| KR102574436B1 (ko) * | 2021-04-01 | 2023-09-04 | 국립해양생물자원관 | 괭생이모자반 추출물을 유효성분으로 함유하는 건선 예방 또는 치료용 조성물 |
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| JP3749978B2 (ja) | 2001-07-11 | 2006-03-01 | 静岡県 | 抗骨粗鬆症作用を発揮する骨形成増進組成物 |
| JP2004217559A (ja) * | 2003-01-14 | 2004-08-05 | Maruhachi Muramatsu:Kk | 糖尿病態の予防・改善剤 |
| JP2006022033A (ja) * | 2004-07-07 | 2006-01-26 | Nagase & Co Ltd | 血管新生抑制剤 |
| CN1985847B (zh) * | 2006-09-04 | 2011-10-05 | 北京世纪博康医药科技有限公司 | 低分子量褐藻多糖硫酸酯在制备治疗心脑血管疾病的药物中的用途 |
| JP2008120702A (ja) * | 2006-11-09 | 2008-05-29 | Pola Chem Ind Inc | 関節炎・関節症用の経口投与組成物 |
| JP2008214245A (ja) * | 2007-03-02 | 2008-09-18 | Nagase & Co Ltd | アルドース還元酵素阻害剤およびその製造方法 |
| WO2008153748A1 (en) * | 2007-05-24 | 2008-12-18 | The Mclean Hospital Corporation | Methods and compositions for the use of sargassum fusiforme for the inhibition of hiv-1 infection |
| JP5306688B2 (ja) * | 2008-03-31 | 2013-10-02 | 株式会社ナリス化粧品 | アポトーシス抑制剤 |
| JP2010030917A (ja) * | 2008-07-25 | 2010-02-12 | Guraiko Materials:Kk | 肝炎予防剤又は肝炎治療剤 |
| JP2011168573A (ja) * | 2010-02-22 | 2011-09-01 | Kunio Suetsuna | フコキサンチン由来の免疫賦活剤、活性化酸素阻害剤又は血管新生抑制剤 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20170088189A (ko) * | 2016-01-22 | 2017-08-01 | 테 퐁 민 인터내셔널 코., 엘티디. | 알레르기-억제 모자반 추출물, 이의 제조 방법 및 이의 응용 |
| KR101883543B1 (ko) | 2016-01-22 | 2018-07-30 | 테 퐁 민 인터내셔널 코., 엘티디. | 알레르기-억제 모자반 추출물, 이의 제조 방법 및 이의 응용 |
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| US20140377305A1 (en) | 2014-12-25 |
| US10463705B2 (en) | 2019-11-05 |
| US20160310550A1 (en) | 2016-10-27 |
| JP2013213007A (ja) | 2013-10-17 |
| US20130259895A1 (en) | 2013-10-03 |
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