JP5642665B2 - 抗原特異的免疫寛容を誘導するための粘膜付着性粒子状製剤 - Google Patents
抗原特異的免疫寛容を誘導するための粘膜付着性粒子状製剤 Download PDFInfo
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- JP5642665B2 JP5642665B2 JP2011509981A JP2011509981A JP5642665B2 JP 5642665 B2 JP5642665 B2 JP 5642665B2 JP 2011509981 A JP2011509981 A JP 2011509981A JP 2011509981 A JP2011509981 A JP 2011509981A JP 5642665 B2 JP5642665 B2 JP 5642665B2
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Description
本明細書で意図する場合、「個体の免疫系の病的反応に関与する抗原」は、その抗原に対して特異的に指向された免疫系の反応を誘導しやすく、個体、特に個体の細胞、組織又は器官に対する免疫反応の開始又は維持を担う化合物に関する。
キトサンは、N−アセチル−D−グルコサミン及びD−グルコサミンの単位で構成される多糖であり、これらの単位はβ−1−6結合により一緒に結合している。通常、キトサンは、β−1−6結合により一緒に結合したN−アセチル−D−グルコサミン単位のホモ多糖であるキチンの脱アセチル化により生じる。キチンは、甲殻類の殻又は植物性の供給源で特に見出される。
−高分子量キトサン(例えばSigma−Aldrichから参照番号419419の下で入手可能)を酢酸水溶液に溶解するステップと;
−抗原を溶液に加えるステップと;
−抗原をキトサンに架橋するステップと
を含む方法により調製できる。
本明細書で意図する場合、「個体の免疫系の病的反応」は、該免疫系を有する生物の組織又は細胞を標的にする免疫反応に関する。
6週齢の雌性BALB/cマウスを、Charles River(L’Arbresle、France)から購入し、OVAを含まない食餌で飼育した。そのCD4+T細胞のおよそ50%がOVAのペプチド323〜339フラグメントに特異的なTCRを発現するDO11.10 OVA特異的T細胞受容体(TCR)トランスジェニック雌性マウス(Murphy et al.Science 1990;250:1720−1723)を、Centre d’Exploration et de Recherche Fonctionnelle Experimentale(Evry、France)を繁殖させた。動物操作についての倫理基準の国際レベルを適用した。
キトサン粒子の特徴決定
粒子を、高MW及び中MWの両方のキトサンから調製したが、これらはポリマー鎖長が異なる。
キトサン粒子は樹状細胞によるOVA取り込み及びプロセシングを改善する
アレルゲン取り込みに対するキトサン粒子の影響を調べるために、in vitro研究を、フルオレセインイソチオシアネート(FITC)標識OVA及びキトサン処方FITC−OVAを用いて行った。
高MWキトサン処方OVAは、in vitroのT細胞増殖及びIFN−γ/IL−10分泌を増進する
DCによるキトサン処方OVAの優れた取り込みがその後のT細胞増殖及びサイトカイン分泌を改善するかを決定するために、DO11.10マウスからのOVA特異的CD4+ナイーブTリンパ球を、カルボキシフルオレセインジアセテートスクシンイミジルエステル(CFSE)で標識し、BMDC及び培地単独、OVA、キトサン単独又はキトサン処方OVAのいずれかとともに共培養した。
高MWキトサン処方OVAの舌下投与後に頚部LNにおいてT細胞プライミングが生じる
キトサン−OVA粒子が、舌下投与後に、流入領域LNにおけるT細胞プライミングを増進できるかを評価するために、上記のようにしてCFSE標識したOVA特異的DO11.10 CD4+T細胞を、SLIT前にBALB/cマウスに養子移植した。
高MWキトサン処方OVAの舌下治療処理は、確立されたAHRを低減する
キトサン粒子が抗原をDCに向けるために用いることができるという証拠に鑑みて、これらを、OVAで感作したマウスに依るマウスSLITモデルにおいて試験した(Razafindratsita et al.J Allergy Clin Immunol 2007;120:278−285)。これらのマウスは、高い細胞浸潤と粘液過剰生成とを特徴とする肺の炎症である重度の気道過敏(AHR)と、全身性OVA特異的Th2免疫応答とを示す。
高MWキトサン処方OVAでの舌下治療処理は、気管支炎症を低減する
気管支炎症を、その後、全ての群において評価した。
高MWキトサン処方OVAでの舌下治療処理は、縦隔LNにおけるOVA特異的Th2応答を低減する
縦隔及び頚部LNにおける免疫応答を、その後、全ての群において評価した。
Claims (14)
- 個体の免疫系の病的反応を、前記病的反応に関与する少なくとも1つの抗原に対する特異的寛容を誘導することにより予防及び/又は治療するために適合された粘膜付着性組成物であって、病的反応に関与する前記少なくとも1つの抗原で負荷されたキトサン粒子を含み、負荷されたキトサン粒子のサイズが1μm〜3μmであり、キトサン粒子が、粘度が少なくとも800cPであるキトサンで作られている、上記粘膜付着性組成物。
- 負荷されたキトサン粒子のゼータ電位が、2.5mVより大きい請求項1に記載の粘膜付着性組成物。
- 負荷されたキトサン粒子のゼータ電位が、6〜9mVである請求項1又は2に記載の粘膜付着性組成物。
- 抗原が、アレルゲン、自己抗原及び移植片特異的抗原からなる群より選択される請求項1から3までのいずれか一項に記載の粘膜付着性組成物。
- 抗原がアレルゲンである請求項1から4までのいずれか一項に記載の粘膜付着性組成物。
- 前記アレルゲンが、花粉アレルゲン、ダニアレルゲン、昆虫アレルゲン、動物の体毛及びふけアレルゲン、並びに食物アレルゲンからなる群より選択される請求項5に記載の粘膜付着性組成物。
- 請求項1から6までのいずれか一項で定義される粘膜付着性組成物を、医薬的に許容され得る担体とともに含む免疫治療組成物。
- 懸濁剤、ゲル剤、散剤、錠剤、カプセル剤又はlyocの形態の請求項7に記載の免疫治療組成物。
- 抗原特異的寛容誘導を増進するためのアジュバントをさらに含む請求項7又は8に記載の免疫治療組成物。
- 個体の免疫系の病的反応を、前記病的反応に関与する少なくとも1つの抗原に対する特異的寛容を誘導することにより予防及び/又は治療するための医薬品として用いるための、個体の免疫系の病的反応を、前記病的反応に関与する少なくとも1つの抗原に対する特異的寛容を誘導することにより予防及び/又は治療するために適合された粘膜付着性組成物であって、病的反応に関与する前記少なくとも1つの抗原で負荷されたキトサン粒子を含み、負荷されたキトサン粒子のサイズが800nmより大きい上記粘膜付着性組成物、又は該粘膜付着性組成物を薬学的に許容される担体とともに含む免疫治療組成物。
- 病的反応が、アレルギー、自己免疫疾患又は移植片拒絶から選択される請求項10に記載の粘膜付着性組成物又は免疫治療組成物。
- 医薬品が、粘膜経路により投与される請求項10又は11に記載の粘膜付着性組成物又は免疫治療組成物。
- 医薬品が、口腔粘膜経路により投与される請求項10から12までのいずれか一項に記載の粘膜付着性組成物又は免疫治療組成物。
- 医薬品が、舌下経路により投与される請求項10から13までのいずれか一項に記載の粘膜付着性組成物又は免疫治療組成物。
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| EP08305182.1 | 2008-05-20 | ||
| EP08305182A EP2123261A1 (en) | 2008-05-20 | 2008-05-20 | Mucoadhesive particulate formulation for inducing antigen-specific immune tolerance |
| PCT/EP2009/056158 WO2009141388A1 (en) | 2008-05-20 | 2009-05-20 | Mucoadhesive particulate formulation for inducing antigen-specific immune tolerance |
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| EP (2) | EP2123261A1 (ja) |
| JP (1) | JP5642665B2 (ja) |
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| CA2750098A1 (en) * | 2009-01-20 | 2010-07-29 | Myelin Repair Foundation, Inc. | Compositions and methods for induction of antigen-specific tolerance |
| JP5909745B2 (ja) | 2010-11-12 | 2016-04-27 | クール ファーマシューティカルズ ディベロップメント カンパニー | 炎症性疾患の治療薬、ならびにウイルスまたは細菌感染疾患の治療薬 |
| JP2014525458A (ja) * | 2011-08-31 | 2014-09-29 | ペロスフィア インコーポレイテッド | アレルギー患者を有効かつ迅速に脱感作するための方法 |
| KR20250052503A (ko) | 2012-06-21 | 2025-04-18 | 노쓰웨스턴유니버시티 | 펩티드 접합된 입자 |
| US20160017062A1 (en) | 2013-03-12 | 2016-01-21 | Wellstat Vaccines, Llc | Antibodies targeted to fungal cell wall polysaccharides |
| HK1220368A1 (zh) | 2013-03-13 | 2017-05-05 | Cour Pharmaceuticals Development Company | 用於治疗炎症的免疫修饰性颗粒 |
| US10709778B2 (en) * | 2013-04-24 | 2020-07-14 | Medizinische Universität Wien | Vaccine formulation for ocular immunization |
| JP6553033B2 (ja) | 2013-08-13 | 2019-07-31 | ノースウェスタン ユニバーシティ | ペプチドコンジュゲート粒子 |
| CA3110773C (en) | 2018-09-11 | 2023-02-28 | Lead Biotherapeutics Ltd. | Mucoadhesive dispersion nanoparticle system and method for production the same |
| EP3996663B1 (en) * | 2019-07-09 | 2024-08-07 | Unilever IP Holdings B.V. | Hair care composition comprising antidandruff agent |
| FR3115993B1 (fr) * | 2020-11-12 | 2023-12-29 | Centre Nat Rech Scient | Systemes de liberation de proteines par voie buccale |
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| GB9416884D0 (en) * | 1994-08-20 | 1994-10-12 | Danbiosyst Uk | Drug delivery compositions |
| DE69921773D1 (de) * | 1998-01-16 | 2004-12-16 | Univ Johns Hopkins | Orale verabreichung von nukleinsäure-impstoffen durch partikelkomplexe |
| AU2002210407A1 (en) * | 2000-10-27 | 2002-05-06 | Pharmexa A/S | Therapeutic vaccine formulations containing chitosan |
| JP2005501845A (ja) * | 2001-08-16 | 2005-01-20 | メディカル リサーチ カウンシル | キチン微小粒子およびそれらの医学的用途 |
| DE10329087B4 (de) * | 2003-06-27 | 2014-02-13 | Biomedical International R + D Gmbh | Antigenhaltige Mikrosphären zur Allergietherapie |
| US20080014281A1 (en) * | 2006-06-16 | 2008-01-17 | Florida Atlantic University | Chitin Micro-Particles As An Adjuvant |
| EP2068917A2 (en) * | 2006-09-22 | 2009-06-17 | Government of the USA, as Represented by the Secretary, Department of Health and Human Services | Compositions and methods for chitosan enhanced immune response |
| EP2081545B1 (en) * | 2006-10-30 | 2019-07-03 | Biosys Health Inc. | Methods of producing chitin microparticles |
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| JP2011520942A (ja) | 2011-07-21 |
| EP2303234A1 (en) | 2011-04-06 |
| WO2009141388A1 (en) | 2009-11-26 |
| US20140079795A1 (en) | 2014-03-20 |
| US9480748B2 (en) | 2016-11-01 |
| EP2123261A1 (en) | 2009-11-25 |
| ES2648866T3 (es) | 2018-01-08 |
| US20110150987A1 (en) | 2011-06-23 |
| EP2303234B1 (en) | 2017-08-23 |
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