JP6687948B2 - 遺伝子発現制御のための発現抑制核酸分子およびその用途 - Google Patents
遺伝子発現制御のための発現抑制核酸分子およびその用途 Download PDFInfo
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7088—Compounds having three or more nucleosides or nucleotides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K51/00—Preparations containing radioactive substances for use in therapy or testing in vivo
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/10—Cells modified by introduction of foreign genetic material
Description
X領域とY領域とが連結した一本鎖核酸であり、
前記X領域は、
発現抑制配列であり、
前記Y領域に対する連結側領域(XB)および非連結側領域(XF)からなり、
前記連結側領域(XB)は、その領域内でステムループ構造またはステム構造を形成する配列であり、
前記非連結側領域(XF)は、前記Y領域と、分子内アニーリングするアニーリング配列を含むことを特徴とする。
本発明の発現抑制核酸分子は、前述のように、標的遺伝子の発現抑制核酸分子であって、
X領域とY領域とが連結した一本鎖核酸であり、
前記X領域は、
発現抑制配列であり、
前記Y領域に対する連結側領域(XB)および非連結側領域(XF)からなり、
前記連結側領域(XB)は、その領域内でステムループ構造またはステム構造を形成する配列であり、
前記非連結側領域(XF)は、前記Y領域と、分子内アニーリングするアニーリング配列を含むことを特徴とする。
本発明の発現抑制用組成物は、前述のように、標的遺伝子の発現を抑制するための組成物であって、前記本発明の発現抑制核酸分子を含むことを特徴とする。本発明の組成物は、前記本発明の発現抑制核酸分子を含むことが特徴であり、その他の構成は、何ら制限されない。本発明の発現抑制用組成物は、例えば、発現抑制用試薬ということもできる。
本発明の発現抑制方法は、前述のように、標的遺伝子の発現を抑制する方法であって、前記本発明の発現抑制核酸分子を使用することを特徴とする。本発明の発現抑制方法は、前記本発明の発現抑制核酸分子を使用することが特徴であって、その他の工程および条件は、何ら制限されない。
本発明の疾患の治療方法は、前述のように、前記本発明の発現抑制核酸分子を、患者に投与する工程を含むことを特徴とする。本発明の治療方法は、前記本発明の発現抑制核酸分子を使用することが特徴であって、その他の工程および条件は、何ら制限されない。
本発明の使用は、前記標的遺伝子の発現抑制のための、前記本発明の発現抑制核酸分子の使用である。
ルシフェラーゼ遺伝子を標的遺伝子とする発現抑制核酸分子(以下、「核酸分子」ともいう。)を合成し、ルシフェラーゼの発現抑制を確認した。
ルシフェラーゼ遺伝子の配列から、ステムループ構造を形成する19塩基長の領域を複数選択して、これらを発現抑制配列(#1、#2、#3、#4、#6)とした。
前記核酸分子を、ヒト非小細胞性肺がん細胞株(NCI―H1299)に導入し、ルシフェラーゼ mRNAの検出を行った。
5’-CGATTTTGTGCCAGAGTCCT-3’ (配列番号16)
5’-AATCTCACGCAGGCAGTTCT-3’ (配列番号17)
GAPDH プライマーセット
5’-ATGGGGAAGGTGAAGGTCG-3’ (配列番号18)
5’-GGGTCATTGATGGCAACAATATC-3’ (配列番号19)
ルシフェラーゼ遺伝子を標的遺伝子とする発現抑制核酸分子を合成し、ルシフェラーゼタンパク質の発現抑制を確認した。
S鎖: 5’-UACUAUUCGACACGCGAAGTT-3’(配列番号20)
AS鎖:5’-CUUCGCGUGUCGAAUAGUATT-3’(配列番号21)
ヒトKRAS遺伝子を標的遺伝子とする発現抑制核酸分子を合成し、KRAS遺伝子の発現抑制を確認した。
KRAS遺伝子の配列から、ステムループ構造を形成する19塩基長の領域を1つ選択して、これらを発現抑制配列とした。
前記核酸分子を、活性型ヒトKRAS(KRAS G12S)を有するA549細胞に導入し、KRAS mRNAの検出を行った。
5’-GGGGAGGGCTTTCTTTGTGTA-3’ (配列番号23)
5’-GTCCTGAGCCTGTTTTGTGTC-3’ (配列番号24)
Claims (6)
- 配列番号11、12、13、14、15または22の塩基配列からなるポリヌクレオチドを含むことを特徴とする、標的遺伝子の発現抑制核酸分子。
- 標的遺伝子の発現を抑制するための組成物であって、
請求項1に記載の発現抑制核酸分子を含むことを特徴とする、発現抑制用組成物。 - 標的遺伝子の発現を抑制する方法であって、
非ヒト動物に対して、請求項1に記載の発現抑制核酸分子を使用することを特徴とする発現抑制方法。 - 前記発現抑制核酸分子を、細胞、組織または器官に投与する工程を含む、請求項3に記載の発現抑制方法。
- 前記発現抑制核酸分子を、in vivoまたはin vitroで投与する、請求項3または4に記載の発現抑制方法。
- 標的遺伝子の発現を抑制する方法であって、
請求項1に記載の発現抑制核酸分子をin vitroで使用することを特徴とする発現抑制方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2014144581 | 2014-07-14 | ||
JP2014144581 | 2014-07-14 | ||
PCT/JP2015/068384 WO2016009809A1 (ja) | 2014-07-14 | 2015-06-25 | 遺伝子発現制御のための発現抑制核酸分子およびその用途 |
Publications (2)
Publication Number | Publication Date |
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