JP5684116B2 - Dna様ヌクレオチドおよびrna様ヌクレオチドを含むオリゴヌクレオチド二重鎖およびその使用 - Google Patents
Dna様ヌクレオチドおよびrna様ヌクレオチドを含むオリゴヌクレオチド二重鎖およびその使用 Download PDFInfo
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- JP5684116B2 JP5684116B2 JP2011511949A JP2011511949A JP5684116B2 JP 5684116 B2 JP5684116 B2 JP 5684116B2 JP 2011511949 A JP2011511949 A JP 2011511949A JP 2011511949 A JP2011511949 A JP 2011511949A JP 5684116 B2 JP5684116 B2 JP 5684116B2
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- C07H21/00—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids
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- C07H21/02—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids with ribosyl as saccharide radical
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Description
本願は、40.0Koのサイズを有する、2009年6月5日に作製した「11168_354 Seq listing」という標題のコンピュータ読み取り可能な型の配列表を含み、この配列表は、引用により本願明細書の一部をなす。
(a)(i)1つ以上のDNA様残基、(ii)1つ以上のRNA様残基、または(iii)(i)と(ii)の両方を含むセンス鎖;ならびに
(b)センス鎖に対して相補的なアンチセンス鎖であって、(i)1つ以上のDNA様残基、(ii)1つ以上のRNA様残基、または(iii)(i)と(ii)の両方を含むアンチセンス鎖。
(a)(i)1つ以上のDNA様残基、(ii)1つ以上のRNA様残基、または(iii)(i)と(ii)の両方を含むセンス鎖;ならびに
(b)センス鎖に対して相補的なアンチセンス鎖であって、((i)1つ以上のDNA様残基、(ii)1つ以上のRNA様残基、または(iii)(i)と(ii)の両方を含むアンチセンス鎖を含む。
センス:DNA様ヌクレオチド、RNA様ヌクレオチド、または両方
アンチセンス:DNA様ヌクレオチド、RNA様ヌクレオチド、または両方
センス:DNA様ヌクレオチド、RNA様ヌクレオチド、または両方
アンチセンス:RNA様ヌクレオチド
センス:DNA様ヌクレオチド
アンチセンス:DNA様ヌクレオチド、RNA様ヌクレオチド、または両方
センス:RNA様ヌクレオチド
アンチセンス:DNA様ヌクレオチド、RNA様ヌクレオチド、または両方
センス:DNA様ヌクレオチド
アンチセンス:RNA様ヌクレオチド。
(a)1つ以上の2’-置換アラビノヌクレオチド(ANA);ならびに
(b)(i)1つ以上の2’-置換リボヌクレオチド(RNA)、(ii)1つ以上のロックされた核酸ヌクレオチド(LNA)、または(iii)(i)および(ii)の組み合わせを含む。
(i)2’F-ANAのみ;
(ii)2’F-RNAのみ;
(iii)2’F-RNAおよび2’F-ANAの組み合わせ;
(iv)RNAのみ;
(v)2’F-ANAおよびRNAの組み合わせ;または
(vi)2’F-ANA、2’F-RNA、およびRNAの組み合わせ;
(vii)2’F-ANA,RNAおよびLNAの組み合わせ
を含む。
(i)2’F-ANAのみ;
(ii)2’F-RNAのみ;
(iii)2’F-RNAおよび2’F-ANAの組み合わせ;
(iv)RNAのみ;
(v)2’F-ANAおよびRNAの組み合わせ;
(vi)2’F-ANA、2’F-RNA、およびRNAの組み合わせ;または
(vii)2’F-ANA,RNAおよびLNAの組み合わせ
からなる。
(i)2’F-RNAのみ;
(ii)RNAのみ;
(iii)2’F-ANAのみ;
(iv)2’F-RNAおよび2’F-ANAの組み合わせ;
(v)RNAおよびLNAの組み合わせ;または
(vi)2’F-ANA,RNAおよびLNAの組み合わせ
を含む。
(i)2’F-RNAのみ;
(ii)RNAのみ;
(iii)2’F-ANAのみ;
(iv)2’F-RNAおよび2’F-ANAの組み合わせ;
(v)RNAおよびLNAの組み合わせ;または
(vi)2’F-ANA、RNA、およびLNAの組み合わせ
からなる。
(a)センス:2’F-RNAおよび2’F-ANAの組み合わせ
アンチセンス:RNAのみ;
(b)センス:2’F-RNAピリミジンおよび2’F-ANAプリンの組み合わせ
アンチセンス:RNAのみ;
(c)センス:1-1アルチマー設計での2’F-RNAおよび2’F-ANAの組み合わせ
アンチセンス:RNAのみ;
(d)センス:2’F-ANAのみ
アンチセンス:2’F-RNAのみ;
(e)センス:3−3アルチマー設計での2’F-RNAおよび2’F-ANAの組み合わせ
アンチセンス:RNAのみ;
(f)センス:3−3および1-1アルチマー設計での2’F-RNA+2’F-ANAの組み合わせ
アンチセンス:RNAのみ;
(g)センス:2’F-ANAおよびRNAの組み合わせ
アンチセンス:2’F-RNAのみ;
(h)センス:3−3アルチマー設計での2’F-RNAおよび2’F-ANAの組み合わせ
アンチセンス:2’F-RNAのみ;
(i)センス:3−3および1-1アルチマー設計での2’F-RNAおよび2’F-ANAの組み合わせ
アンチセンス:2’F-RNAのみ;
(J)センス:1-1アルチマー設計での2’F-RNAおよび2’F-ANAの組み合わせ
アンチセンス:2’F-RNAのみ;
(k)センス:2’F-ANAのみ
アンチセンス:RNAおよびLNAの組み合わせ;
(I)センス:2’F-ANAおよびRNAの組み合わせ
アンチセンス:RNAおよびLNAの組み合わせ;
(m)センス:2’F-ANA,RNAおよびLNAの組み合わせ
アンチセンス:RNAのみ;
(n)センス:2’F-ANA,RNAおよびLNAの組み合わせ
アンチセンス:RNAおよびLNAの組み合わせ;または
(o)センス:2’F-ANA,RNAおよびLNAの組み合わせ
アンチセンス:2’F-RNAのみ
を含む。
(a)センス:(2’F-RNAピリミジン)x(2’F-ANAプリン)y
アンチセンス:(RNA)Z
ここで、センス鎖においてxはピリミジンの数であり、yはプリンの数であり、ここでx+y=zである。1つの実施形態において、z=19である。
(b)センス:[(2’F-ANA)(2’F-RNA)]9(2’F-ANA)
アンチセンス:(RNA)19
(c)センス:(2’F-ANA)19
アンチセンス:(2’F-RNA)19
(d)センス:[(2’F-ANA)3(2’F-RNA)3]3(2’F-ANA)
アンチセンス:(RNA)19
(e)センス:[(2’F-ANA)3(2’F-RNA)3]2[(2’F-ANA)(2’F-RNA)]3(2’F-ANA)
アンチセンス:(RNA)19
(f)センス:(2’F-ANA)14(RNA)5
アンチセンス:(2’F-RNA)19
(g)センス:[(2’F-ANA)3(2’F-RNA)3]3(2’F-ANA)
アンチセンス:(2’F-RNA)19
(h)センス:[(2’F-ANA)3(2’F-RNA)3]2[(2’F-ANA)(2’F-RNA)]3(2’F-ANA)
アンチセンス:(2’F-RNA)19
(i)センス:[(2’F-ANA)(2’F-RNA)]9(2’F-ANA)
アンチセンス:(2’F-RNA)19
(j)センス:(2’F-ANA)19
アンチセンス:(LNA)(RNA)18
(k)センス:(2’F-ANA)19
アンチセンス:(LNA)(RNA)(LNA)(RNA)16
(l)センス:(2’F-ANA)19
アンチセンス:(RNA)11(LNA)2(RNA)6
(m)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)2(LNA)(RNA)(2’F-ANA)2
アンチセンス:(RNA)19
(n)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)(2’F-ANA)(LNA)(2’F-ANA)(RNA)
アンチセンス:(RNA)19
(o)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)5
アンチセンス:(RNA)19
(p)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)2(LNA)(RNA)(2’F-ANA)2
アンチセンス:(LNA)(RNA)18
(q)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)(2’F-ANA)(LNA)(2’F-ANA)(RNA)
アンチセンス:(LNA)(RNA)18
(r)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)2(RNA)2(2’F-ANA)2
アンチセンス:(LNA)(RNA)18
(s)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)(2’F-ANA)(RNA)(2’F-ANA)(RNA)
アンチセンス:(LNA)(RNA)18
(t)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)5
アンチセンス:(LNA)(RNA)18
(u)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)2(LNA)(RNA)(2’F-ANA)2
アンチセンス:(2’F-RNA)19
(v)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)(2’F-ANA)(LNA)(2’F-ANA)(RNA)
アンチセンス:(2’F-RNA)19
(w)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)2(RNA)2(2’F-ANA)2
アンチセンス:(2’F-RNA)19
(x)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)(2’F-ANA)(RNA)(2’F-ANA)(RNA)
アンチセンス:(2’F-RNA)19または
(y)センス:(2’F-ANA)(RNA)(LNA)(RNA)(2’F-ANA)4(RNA)2(LNA)(RNA)2(2’F-ANA)(RNA)5
アンチセンス:(2’F-RNA)19
を含む。
オリゴヌクレオチド合成。固相オリゴヌクレオチド合成のための標準的な条件を、すべてのオリゴヌクレオチドについて、0.8〜1.0μmolスケールで使用した。4,5-ジシアノイミダゾール(アセトニトリル中0.50M)または5-エチルチオテトラゾール(アセトニトリル中0.25M)を活性化剤として使用し、1:2:10 ピリジン:水:THF中の0.10M ヨウ素を酸化剤として使用した(酸化工程の間の待ち時間は24秒であった)。ホスホルアミダイトは0.15M溶液(RNAアミダイト)または0.08〜0.10M溶液(DNA、2’-フルオロアミダイト)として調製した。カップリング時間は修飾ヌクレオチドについては10〜30分に延長した。オリゴヌクレオチドは、3:1 水酸化アンモニウム:エタノールで、55°Cで16時間処理して、これらを固相支持体から切断し、リン酸および塩基を脱保護した。リボヌクレオチドを含む配列は、Et3N・3HF(100μL)で、室温にて48時間、濃縮および脱シリル化を行った。配列精製は、0〜0.2M LiClO4溶液を溶出液として使用するアニオン交換HPLCによって、または調製用変性PAGEによって達成した。脱塩はSephadex G-25またはNAP-25カラム上で行った。配列の純度は変性PAGEを使用して確認した。
完全に修飾された2’F-ANA鎖および2’F-RNA鎖を含む一連の二重鎖を作製した(表1)。これらの二重鎖は、ホタルルシフェラーゼ遺伝子(RefSeqアクセッション番号M15077)の1818-1836位を標的とする。両方の2’-フルオロエピマーを含む一連のキメラ鎖もまた設計した。1つのキメラは、2’F-RNAピリミジンおよび2’F-ANAプリンからなった。別の鎖の対は、「1-1アルチマー」構造であり、交互の2’F-ANA残基および2’F-RNA残基を有した。これらの2’F-ANA/2’F-RNAキメラ鎖のすべてについて、3’突出は常に2’F-ANAから作られていた。
(a)センス鎖については2’F-ANAおよび2’F-ANA−2’F-RNAキメラの優先度、アンチセンス鎖については2’F-RNAの優先度;
(b)2’F-ANAおよび2’F-RNAの1-1アルチマーの低い結合親和性(二重鎖jg-8およびjg-9は対照配列よりも13〜16°C低いTm値を有した。表1を参照のこと;
(c)完全に修飾された2’F-ANAセンス鎖の活性は、2’F-RNA アンチセンス鎖と対合した場合にその3’末端近くに5つのRNA挿入物を含む「fr型」2’F-ANAセンス鎖の活性と比較した。
本願明細書に記載される4E-BP阻害研究において使用されたsiRNAの配列は表3に提供される。
次に、2’F-ANAが、ノーザン糖パッカーを採用する別のRNAアナログ、すなわち、ロックされた核酸(LNA)と相乗的に作用できるか否かを試験した。LNAは、メチレン架橋によって、堅いノーザン糖コンホメーションにロックされている。
C−mybは白血病に関与するプロトオンコジーンである。これは、造血細胞増殖に必須のタンパク質をコードしている。ルシフェラーゼ活性および/または4E-BP遺伝子サイレンシング活性を有することが示されている2’F-ANA/2’F-RNAおよび2’F-ANA/2’F-RNA/LNA構成を、別の標的、すなわち、c-mybに対して試験した。C-mybシリーズの二重鎖の配列は表9において提供する。
Claims (22)
- センス鎖およびアンチセンス鎖を含むオリゴヌクレオチド二重鎖を含む化学修飾されたsiRNAであって、それぞれが
(i)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 2 [(2’F-ANA)(2’F-RNA)] 3 (2’F-ANA)
アンチセンス:(RNA) 19
(ii)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 2 [(2’F-ANA)(2’F-RNA)] 3 (2’F-ANA)
アンチセンス:(2’F-RNA) 19
(iii)センス:[(2’F-ANA)(2’F-RNA)] 9 (2’F-ANA)
アンチセンス:(RNA) 19
(iv)センス:[(2’F-ANA)(2’F-RNA)] 9 (2’F-ANA)
アンチセンス:(2’F-RNA) 19
(v)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 3 (2’F-ANA)
アンチセンス:(RNA) 19
(vi)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 3 (2’F-ANA)
アンチセンス:(2’F-RNA) 19
(vii)センス:(2’F-ANA) 19
アンチセンス:(2’F-RNA) 19 、または
(viii)センス:(2’F-ANA) 14 (RNA) 5
アンチセンス:(2’F-RNA) 19
を含む、化学修飾されたsiRNA。 - (i)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 2 [(2’F-ANA)(2’F-RNA)] 3 (2’F-ANA)
アンチセンス:(RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - (ii)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 2 [(2’F-ANA)(2’F-RNA)] 3 (2’F-ANA)
アンチセンス:(2’F-RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - (iii)センス:[(2’F-ANA)(2’F-RNA)] 9 (2’F-ANA)
アンチセンス:(RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - (iv)センス:[(2’F-ANA)(2’F-RNA)] 9 (2’F-ANA)
アンチセンス:(2’F-RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - (v)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 3 (2’F-ANA)
アンチセンス:(RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - (vi)センス:[(2’F-ANA) 3 (2’F-RNA) 3 ] 3 (2’F-ANA)
アンチセンス:(2’F-RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - (vii)センス:(2’F-ANA) 19
アンチセンス:(2’F-RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - (viii)センス:(2’F-ANA) 14 (RNA) 5
アンチセンス:(2’F-RNA) 19
を含む、請求項1に記載の化学修飾されたsiRNA。 - 前記二重鎖が1つ以上の2’-F-ANAおよび1つ以上の2’-F-RNAで完全に修飾されている、請求項1に記載の化学修飾されたsiRNA。
- 前記二重鎖が突出を含む、請求項1に記載の化学修飾されたsiRNA。
- 前記突出が1〜5残基の突出である、請求項11に記載の化学修飾されたsiRNA。
- 前記突出が2残基の突出である、請求項12に記載の化学修飾されたsiRNA。
- 前記突出がDNA、2’F-ANA、及び/または2’F-RNA残基を含む、請求項11〜13のいずれか一項に記載の化学修飾されたsiRNA。
- 前記突出が2つの2’F-ANA残基を含む、請求項14に記載の化学修飾されたsiRNA。
- 前記突出がセンス鎖上に2つの2’F-ANA残基を含む、請求項15に記載の化学修飾されたsiRNA。
- 前記突出がアンチセンス鎖上に2つの2’F-ANA残基を含む、請求項15に記載の化学修飾されたsiRNA。
- 前記センス鎖および前記アンチセンス鎖が19〜23ヌクレオチド残基長である、請求項1〜17のいずれか一項に記載の化学修飾されたsiRNA。
- 薬学的に受容可能な賦形剤またはキャリアとともに、請求項1〜18のいずれか一項に記載の化学修飾されたsiRNAを含む、薬学的組成物。
- 細胞中で、標的核酸を分解する、もしくはそのレベルを減少させる、または前記標的核酸によってコードされるポリペプチドの産生を減少させる際に使用するための、請求項19に記載の薬学的組成物であって、ここで、前記化学修飾されたsiRNAのセンス鎖は、標的核酸の核酸塩基配列と実質的に同一である核酸塩基配列を含む、薬学的組成物。
- 被験体において、標的核酸の発現または前記標的核酸によってコードされるポリペプチドの発現に関連する疾患または病態を予防または治療する際に使用するための、請求項19に記載の薬学的組成物であって、ここで、前記化学修飾されたsiRNAのセンス鎖は、標的核酸の核酸塩基配列と実質的に同一である核酸塩基配列を含む、薬学的組成物。
- 細胞中で、標的核酸の分解のためもしくはそのレベルを減少させるため、または前記標的核酸によってコードされるポリペプチドのレベルを減少させるためのin vitro方法であって、前記方法は、請求項1〜18のいずれか一項に記載の化学修飾されたsiRNAと、細胞とを接触させる工程を包含し、ここで、前記化学修飾されたsiRNAのセンス鎖は、標的核酸の核酸塩基配列と実質的に同一である核酸塩基配列を含む、方法。
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