JP2009522312A - 眼血管形成の治療のためのIGF1RのRNAi媒介抑制 - Google Patents
眼血管形成の治療のためのIGF1RのRNAi媒介抑制 Download PDFInfo
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Abstract
Description
本発明は、IGF1R mRNAがコードするタンパク質である、インスリン様増殖因子−1受容体(IGF−1R)の発現を眼血管形成において抑制するための干渉性RNA組成物の分野に関し、該血管形成が、インスリン様増殖因子−1(IGF−1)とIGF−1Rとの相互作用から生じ、例えば、眼血管新生、網膜浮腫、糖尿病性網膜症、網膜虚血関連続発症、後眼部血管新生および血管新生緑内障を直接的または間接的に起こす細胞変化を含む。
糖尿病性網膜症(DR)は、血管内側を覆う細胞、即ち網膜微小血管内皮の変化により糖尿病で発症する眼疾患である。糖尿病の間に、高血糖症はいくつもの方法で障害を起こし得る。例えば、グルコースまたはグルコース代謝産物は、タンパク質のアミノ基に結合し、組織障害を起こす。その上、過剰のグルコースがポリオール経路に入り、ソルビトールの蓄積を起こす。ソルビトールは網膜細胞により代謝できず、高い細胞内浸透圧、細胞内浮腫、拡散障害、組織低酸素症、毛細血管細胞障害および毛細血管弱化の一因となり得る。糖尿病性網膜症は、毛細血管基底膜の肥厚を伴い、そのために、網膜毛細血管における主要な血管周囲細胞型の周皮細胞が、内皮細胞と接触することを妨げられる。糖尿病性網膜症の間に、周皮細胞および内皮細胞の細胞死がアポトーシス機構を介して起こり、周皮細胞の減少が毛細血管の透過性を恐らく高め、血管網膜関門の破壊および血流の調節不全を起こす。弱化した毛細血管は、動脈瘤の形成およびさらなる漏出を起こす。高血糖症のこうした作用は、網膜内の神経機能にも障害を与え得る。DRは、網膜微小動脈瘤、出血、滲出液、および増殖性網膜炎、即ち網膜の内表面上での新血管および結合組織の大規模増殖と関係している。糖尿病性網膜症は、微小動脈瘤、網膜内点状出血、黄蝋性滲出液、綿状白斑および黄斑浮腫を次第に特徴とする、バックグランド型の場合がある。これは、非増殖性糖尿病性網膜症と称する糖尿病性網膜症の初期段階である。
本発明は、血管形成および血管透過性においてIGF1Rを標的とする干渉性RNAを提供する。
本明細書に示す詳細説明は、本発明の好ましい実施形態の説明的考察を例示することだけを目的とし、本発明の多様な実施形態の原理および概念態様に関する最も有用で理解容易と考えられる説明をする動機から提示している。この点で、本発明の根本的理解に必要な以上に詳細に、本発明の構造的詳細を示そうとはしておらず、図面および/または実施例を用いた説明は、本発明のいくつかの形態を実際に具体化し得る次第を当業者に明らかにしている。
発現系におけるIGF1R mRNAの発現を弱める方法であって、前記方法は、長さが19ヌクレオチド〜49ヌクレオチドの干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物を前記発現系へ投与することを含み、前記干渉性RNAは、センスヌクレオチド鎖、アンチセンスヌクレオチド鎖、および少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を含み、前記アンチセンスヌクレオチド鎖は、配列番号1に対応するmRNAの一部分に生理条件下でハイブリッド形成し、配列番号1に対応するmRNAの前記ハイブリッド形成部分に対して、少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を有しており、それによりIGF1R mRNAの前記発現が弱められる方法。
IGF1R mRNAを発現する被験体に対してIGF1R mRNAの発現を弱める方法であって、前記方法は、長さが19ヌクレオチド〜49ヌクレオチドの干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物を前記被験体へ投与することを含み、前記干渉性RNAは、センスヌクレオチド鎖、アンチセンスヌクレオチド鎖、および少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を含み、前記アンチセンスヌクレオチド鎖は、配列番号1に対応するmRNAの一部分に生理条件下でハイブリッド形成し、配列番号1に対応するmRNAの前記ハイブリッド形成部分に対して、少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を有しており、それによりIGF1R mRNAの前記発現が弱められる方法。
IGF1Rを特異的に沈黙させるための干渉性RNA
本試験では、培養HeLa細胞における内因性IGF−1Rタンパク質の発現量に対するIGF1R干渉性RNAのノックダウン能を調べる。
Claims (13)
- 発現系におけるIGF1R mRNAの発現を弱める方法であって、前記方法は、
長さが19ヌクレオチド〜49ヌクレオチドの干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物を前記発現系へ投与すること
を含み、前記干渉性RNAは、
センスヌクレオチド鎖、アンチセンスヌクレオチド鎖、および少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を含み、
前記アンチセンスヌクレオチド鎖は、配列番号1に対応するmRNAの一部分に生理条件下でハイブリッド形成し、配列番号1に対応するmRNAの前記ハイブリッド形成部分に対して、少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を有しており、
それによりIGF1R mRNAの前記発現が弱められる、方法。 - 眼血管形成の治療が必要な被験体において眼血管形成の治療を行うための薬剤の使用であって、前記使用は、
長さが19ヌクレオチド〜49ヌクレオチドの干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物を前記被験体の眼へ投与すること
を含み、前記干渉性RNAは、
センスヌクレオチド鎖、アンチセンスヌクレオチド鎖、および少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を含み、
前記アンチセンスヌクレオチド鎖は、配列番号1に対応するmRNAの一部分に生理条件下でハイブリッド形成し、配列番号1に対応するmRNAの前記ハイブリッド形成部分に対して、少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を有しており、
それにより前記眼血管形成が治療される、使用。 - 発現系におけるIGF1R mRNAの発現を弱める方法であって、前記方法は、
長さが19ヌクレオチド〜49ヌクレオチドの1本鎖干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物を前記発現系へ投与すること
を含み、前記1本鎖干渉性RNAは、401、635、1062、1548、1604、1643、1766、1922、2012、2069、2210、2416、2423、2654、2909、3339、3416、3464、3476、3505、3512、3781、3782、3881、4064、4158、4411、4487、4904、4905、4909、3329、2323または2887のいずれかの番号のヌクレオチドを含む配列番号1に対応するmRNAの一部分に生理条件下でハイブリッド形成し、前記干渉性RNAは、配列番号1に対応するmRNAの前記ハイブリッド形成部分に対して、少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を有しており、
それによりIGF1R mRNAの前記発現が弱められる、方法。 - 発現系におけるIGF1R mRNAの発現を弱める方法であって、前記方法は、
長さが19ヌクレオチド〜49ヌクレオチドの干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物を前記発現系へ投与すること
を含み、前記干渉性RNAは、
配列番号2および配列番号8〜配列番号40のいずれか1つに対応するmRNAの3’末端から2番目からの13ヌクレオチド、14ヌクレオチド、15ヌクレオチド、16ヌクレオチド、17ヌクレオチドまたは18ヌクレオチドに対して、少なくとも80%の配列相補性または少なくとも80%の配列同一性を有する少なくとも13個の連続ヌクレオチド領域を含んでおり、
それによりIGF1R mRNAの前記発現が弱められる、方法。 - 被験体における眼血管形成を治療する薬剤の調製における、長さが19ヌクレオチド〜49ヌクレオチドの干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物の使用であって、前記干渉性RNAは、
配列番号2および配列番号8〜配列番号40のいずれか1つに対応するmRNAの3’末端から2番目からの13ヌクレオチドに対して、少なくとも90%の配列相補性または少なくとも90%の配列同一性を有する少なくとも13個の連続ヌクレオチド領域を含んでおり、
それにより前記眼血管形成が治療される、使用。 - 被験体における眼血管形成を治療する薬剤の調製における、
RNA干渉を介してIGF1R遺伝子の発現をダウンレギュレートする、2本鎖siRNA分子
を含む組成物の使用であって、
前記siRNA分子の各鎖は独自に長さが約19ヌクレオチド〜約27ヌクレオチドであり、
前記siRNA分子の一方の鎖が、それぞれ前記IGF1R遺伝子に対応するmRNAに対して実質的な相補性を有するヌクレオチド配列を含むことにより、前記siRNA分子がRNA干渉を介して前記mRNAの切断を誘導する、使用。 - 19ヌクレオチド〜49ヌクレオチドの長さを有し、
センスヌクレオチド鎖、アンチセンスヌクレオチド鎖、および少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域
を含む第2の干渉性RNAを前記発現系に投与することをさらに含み、
前記第2の干渉性RNAの前記アンチセンスヌクレオチド鎖は、配列番号1に対応するmRNAの第2の部分に生理条件下でハイブリッド形成し、前記アンチセンス鎖は、配列番号1に対応するmRNAの前記第2のハイブリッド形成部分に対して、少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を有する、
請求項1、3または4のいずれかに記載の方法。 - 19ヌクレオチド〜49ヌクレオチドの長さを有し、配列番号2および配列番号8〜配列番号40のいずれか1つに対応するヌクレオチド配列、またはその相補体を含む干渉性RNAと、薬学的に受容可能なキャリアとを含む、組成物。
- RNA干渉を介してIGF1R遺伝子の発現をダウンレギュレートする、2本鎖siRNA分子を含む組成物であって、
前記siRNA分子の各鎖は独自に長さが約19ヌクレオチド〜約27ヌクレオチドであり、
前記siRNA分子の一方の鎖が、前記IGF1R遺伝子に対応するmRNAに対して実質的な相補性を有するヌクレオチド配列を含むことにより、前記siRNA分子がRNA干渉を介して前記mRNAの切断を誘導する、組成物。 - IGF1R mRNAを発現する被験体に対してIGF1R mRNAの発現を弱める方法であって、前記方法は、
長さが19ヌクレオチド〜49ヌクレオチドの干渉性RNAの有効量と薬学的に受容可能なキャリアとを含む組成物を前記被験体へ投与すること
を含み、前記干渉性RNAは、
センスヌクレオチド鎖、アンチセンスヌクレオチド鎖、および少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域
を含み、前記アンチセンスヌクレオチド鎖は、配列番号1に対応するmRNAの一部分に生理条件下でハイブリッド形成し、配列番号1に対応するmRNAの前記ハイブリッド形成部分に対して、少なくともほぼ完全に連続して相補的な少なくとも19ヌクレオチドの領域を有しており、
それによりIGF1R mRNAの前記発現が弱められる、方法。 - 前記アンチセンス鎖は、401、635、1062、1548、1604、1643、1766、1922、2012、2069、2210、2416、2423または2654のいずれかの番号のヌクレオチドを含む配列番号1に対応するmRNAを標的とするように設計される、請求項1、3、4または10のいずれかに記載の方法。
- 前記アンチセンス鎖は、2909、3339、3416、3464、3476、3505、3512、3781、3782、3881、4064、4158、4411、4487、4904、4905、4909、3329、2323または2887のいずれかの番号のヌクレオチドを含む配列番号1に対応するmRNAを標的とするように設計される、請求項1、3、4または10のいずれかに記載の方法。
- 前記組成物が、19ヌクレオチド〜49ヌクレオチドの長さを有し、配列番号2および配列番号8〜配列番号40のいずれか1つに対応する第2のmRNAの3’末端から2番目からの13ヌクレオチドに対して、少なくとも80%の配列相補性または少なくとも80%の配列同一性を有する少なくとも13個、14個、15個、16個、17個または18個の連続ヌクレオチド領域を含んだ第2の干渉性RNAをさらに含む、請求項1、3、4または10に記載の方法、あるいは請求項8または9に記載の組成物。
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JP2012254095A (ja) | 2012-12-27 |
WO2007076548A2 (en) | 2007-07-05 |
EP1966368B1 (en) | 2012-08-22 |
AU2006330435C1 (en) | 2014-03-06 |
CA2632690C (en) | 2015-01-13 |
PL1966368T3 (pl) | 2013-03-29 |
CY1113098T1 (el) | 2016-04-13 |
ZA200805601B (en) | 2009-12-30 |
WO2007076548A3 (en) | 2008-04-17 |
CA2632690A1 (en) | 2007-07-05 |
US20140364480A1 (en) | 2014-12-11 |
AU2006330435A1 (en) | 2007-07-05 |
DK1966368T3 (da) | 2012-09-17 |
RU2008130901A (ru) | 2010-04-10 |
KR20080082655A (ko) | 2008-09-11 |
BRPI0620723A2 (pt) | 2011-11-22 |
CN101326282A (zh) | 2008-12-17 |
ES2392185T3 (es) | 2012-12-05 |
AU2006330435B2 (en) | 2013-08-22 |
EP2527443A3 (en) | 2013-02-20 |
US20070275922A1 (en) | 2007-11-29 |
PT1966368E (pt) | 2012-11-02 |
EP1966368A4 (en) | 2010-10-06 |
HK1117873A1 (en) | 2009-01-23 |
EP2527443A2 (en) | 2012-11-28 |
EP1966368A2 (en) | 2008-09-10 |
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