WO2006028160A1 - S‐オリゴヌクレオチドコンジュゲート及びアンチセンス剤 - Google Patents
S‐オリゴヌクレオチドコンジュゲート及びアンチセンス剤 Download PDFInfo
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- WO2006028160A1 WO2006028160A1 PCT/JP2005/016483 JP2005016483W WO2006028160A1 WO 2006028160 A1 WO2006028160 A1 WO 2006028160A1 JP 2005016483 W JP2005016483 W JP 2005016483W WO 2006028160 A1 WO2006028160 A1 WO 2006028160A1
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- Prior art keywords
- oligonucleotide
- conjugate
- group
- peptide
- oligonucleotide conjugate
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- 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
- C12N15/1137—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 against enzymes
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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
- A61K31/7042—Compounds having saccharide radicals and heterocyclic rings
- A61K31/7052—Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y207/00—Transferases transferring phosphorus-containing groups (2.7)
- C12Y207/07—Nucleotidyltransferases (2.7.7)
- C12Y207/07049—RNA-directed DNA polymerase (2.7.7.49), i.e. telomerase or reverse-transcriptase
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- 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
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/11—Antisense
-
- 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
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/31—Chemical structure of the backbone
- C12N2310/315—Phosphorothioates
-
- 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
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/35—Nature of the modification
- C12N2310/351—Conjugate
- C12N2310/3513—Protein; Peptide
Definitions
- the present invention relates to a novel phosphorothioate oligonucleotide conjugate that inhibits telomerase activity in a human leukemia cell extract and an antisense agent comprising the same as an active ingredient.
- a complex of an oligonucleotide and a peptide has the potential to be used as an antisense agent for gene expression, and the peptide facilitates an increase in the intercellular concentration of the active oligonucleotide. Many attempts have been made to achieve this.
- Non-Patent Document 1 For example, by introducing a thiol group at the 5 terminus of a synthetic oligonucleotide, a conjugate of DNA and a peptide siphon has been obtained (see Non-Patent Document 1).
- functional organic compounds using bifunctional linkers such as dialkylating reagents, dimaleimides, and dialdehydes using functional groups such as amino groups, carboxylic acid groups, hydroxyl groups, and phenol groups present in protein molecules.
- a combination of angiotensin I, insulin, bradykinin, topramycin, and other anticancer substances is also known, and the use of aromatic dithioisocyanate as a linker is also proposed (non- See Patent Document 2
- Non-Patent Document 1 “Bioconjugate Chemistry”, 1 994, Vol. 5, p. 373-378
- Non-Patent Document 2 "Science”, 1964, No. 144, p. 1344
- the present invention provides a novel activity that inhibits telomerase in a human leukemia cell extract, in particular, a high activity inhibitory action, and provides a stable double-stranded hybrid with a complementary DNA. It was made for the purpose of providing such a conjugate.
- the inventors of the present invention have made extensive studies to develop a novel DNA conjugate.
- a nuclear localization signal polypeptide is added to a natural oligo DNA via ⁇ -aminoalkyl phosphoroate.
- we succeeded in obtaining a DNA conjugate that has excellent antisense properties and forms stable double-stranded hybrids with complementary DNA op
- the present invention provides a general formula
- Alkylene Alpha 1 in the formula is interrupted by an alkylene group or an oxygen atom, Alpha 2 alkylene group, R represents a peptide residue of the sugar or functional Amin, eta is 0 or 1)
- an antisense agent comprising the same as an active ingredient.
- the S-oligonucleotide in the present invention is obtained by changing the phosphodiester structure in a natural oligonucleotide to a thiophosphate diester structure.
- nucleotide residues having 10 to 15 base unit power for example, SEQ ID NO: 1-3 'and SEQ ID NO: 2-3' are preferred.
- alkylene group having an A 1 bond in the general formula (I) a polymethylene group having 2 to 10 carbon atoms, preferably 4 to 8 carbon atoms, such as an ethylene group, a propylene group, a butylene group, a pentylene group, Hexylene group and the like can be mentioned.
- the alkylene group may be one having a carbon chain interrupted by an oxygen atom, such as a 2-oxapropylene group, a 3-oxapentylene group, or a 4-oxaheptylene group.
- alkylene group having an A 2 bond in the general formula (I) is preferably a polymethylene group having 4 to 12 carbon atoms or a branched alkylene group.
- the peptides introduced into the S-oligonucleotide via a linker include peptides obtained by degradation of various proteins, such as a nuclear export signal peptide, an antigen-derived nuclear localization signal peptide, Examples of the synthesized amphipathic ⁇ -helix and ⁇ -sheet peptide include sucrose and galactosamine as saccharides, and spermine and lipofectamine as functional amines.
- a solid phase carrier such as porous glass, controlled porous glass (CPG).
- the DNA derivative is oxidized to form a general formula.
- Is produced can be produced by reacting this with a peptide, sugar or functional amine, and finally treating with an alkali such as aqueous ammonia to separate the solid phase carrier, and removing the protecting group (hereinafter referred to as synthesis method 1). And u).
- an alkali such as aqueous ammonia
- synthesis method 2 Can be produced by reacting it with a peptide, sugar or functional amine and further subjecting it to an alkali treatment (hereinafter referred to as synthesis method 2). These reactions are carried out using an appropriate solvent such as acetonitrile or dimethylformamide.
- a ⁇ -cyanoalkyl group such as a 2-cyanoethyl group or a trimethyl derivative residue such as a 4-methoxyphenyldimethyl group is used.
- Natural oligonucleotides are not introduced into cells without a cell introduction agent.
- nuclear localization signal peptide when a nuclear localization signal peptide is conjugated to this, it can be easily introduced into a cell without a cell introduction agent and localized in the nucleus, and the nuclear export signal peptide can be conjugated. When gated, it is easily introduced into the cell and localized in the cytoplasm (extranuclear).
- the S-oligonucleotide conjugates of the present invention in which a nuclear localization signal peptide is conjugated to an S-oligonucleotide can be easily introduced into cells without a cell introduction agent, and the force can be reduced with the cytoplasm. Localizes both in the nucleus.
- Nitrate (H Ml) or carbodiimidazole (CDI) and dimethylformamide containing diisopropylethylamine were reacted at room temperature for 2-12 hours, and then SV40T antigen nuclear localization signal (SEQ ID NO: SEQ ID NO: 7) was reacted in dimethylformamide containing diisopropylethylamine at room temperature for 24 hours.
- reaction product thus obtained is treated in concentrated aqueous ammonia at 55 ° C for 4 hours, whereby excision from CPG and removal of the protecting group bound to the oligonucleotide and peptide are performed.
- the desired S-oligonucleotide conjugate was obtained as a crude product.
- the crude product was purified using a reverse phase liquid chromatograph, and the resulting compound (No. 1) was analyzed by liquid chromatography and laser-excited time-of-flight mass spectrometry (MALDI—T OF MS). Yield ⁇ or 30.45 0/0 during this, TOF MSi or 5642.63 der ivy o
- An oligonucleotide conjugate No. 2 was produced in the same manner as in Example 1 except that a natural oligonucleotide (SEQ ID NO: 2-3) was used in place of the S-oligonucleotide in Example 1.
- the yield was 18.21% and TOF-MS was 5384.26.
- S-oligonucleotide conjugate sample No. 1 obtained in Example 1 and the oligonucleotide conjugate No. 2 obtained in the comparative example were tested for stability with complementary strand DNA as follows.
- each sample is dissolved at a concentration of 1 ⁇ , and the complementary strand DNA is added to the sample and heated at 92 ° C for 5 minutes. Slowly cool to recombine the two strands
- S-oligonucleotide conjugate molecules of the present invention can form hybrid duplexes with complementary RNA.
- sample No. 1 obtained in Example 1 was adjusted to a concentration of M with 0.1 M NaCl, and 5 ml of DNase 1 (manufactured by Sigma) in 160 Kunits was stored therein at 37 ° C.
- DNase 1 manufactured by Sigma
- the decomposition rate in 180 minutes was 13%.
- the degradation rate was similarly measured using the natural oligonucleotide conjugate obtained in the comparative example, the degradation rate was 100%.
- Example 1 The sample No. 1 obtained in Example 1 and the sample No. 2 obtained in the comparative example were subjected to a degradation test for ribonuclease H.
- RNA complementary to each sample was modified with a fluorescent label, adjusted to a concentration of 10 ⁇ to form a hybrid duplex, and then ribonuclease ⁇ (Sigma' (Aldrich) 2.5 units were added, and when the degradation rate in the reaction buffer was measured over time by 20% polyacrylamide gel electrophoresis, they showed exactly the same activity.
- Sample No. 1 obtained in Example 1 and Sample No. 2 obtained in Comparative Example were examined for stability in serum.
- sample No. 2 decomposed almost 100% after 24 hours, while sample No. 1 only decomposed 15%.
- the sample No. 1 obtained in Example 1 and the sample No. 2 obtained in the comparative example were measured for human telomerase inhibitory activity in the cell extract.
- the human telomerase used here is an enzyme that is specifically expressed in cancer cells and causes immortalization of the cells.
- Jurkat cell force derived from leukemia cells was used and expressed as the concentration required for 50% inhibition (IC).
- sample No. 2 was 1030 nM, while sample No. 1 showed sufficient activity at a very low concentration of 0.5 nM.
- the S-oligonucleotide conjugate of the present invention exhibits significantly higher human telomerase inhibitory activity than the oligonucleotide conjugate.
- telomere activity by a simple reaction operation, a particularly high inhibitory action is exerted on telomerase activity, an excellent antisense property, and a stable double-stranded hybrid is formed with complementary DNA.
- S-oligonucleotide conjugates suitable as antisense agents can be produced.
- the s-oligonucleotide conjugates of the present invention have excellent antisense properties and form stable hybrid duplexes with complementary RNA, and thus are useful as antisense agents.
- telomerase that contributes to the immortalization of cancer cells, so it is effective for inhibiting the proliferation of cancer cells when administered to cancer patients.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Organic Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Plant Pathology (AREA)
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
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Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-264447 | 2004-09-10 | ||
| JP2004264447A JP2006075110A (ja) | 2004-09-10 | 2004-09-10 | 新規s‐オリゴヌクレオチドコンジュゲート及びそれを有効成分とするアンチセンス剤 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006028160A1 true WO2006028160A1 (ja) | 2006-03-16 |
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ID=36036441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/016483 Ceased WO2006028160A1 (ja) | 2004-09-10 | 2005-09-08 | S‐オリゴヌクレオチドコンジュゲート及びアンチセンス剤 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006075110A (ja) |
| WO (1) | WO2006028160A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3124609A1 (en) | 2015-07-29 | 2017-02-01 | IFOM Fondazione Istituto Firc di Oncologia Molecolare | Therapeutics oligonucleotides |
| EP3650546A1 (en) | 2015-07-29 | 2020-05-13 | IFOM Fondazione Istituto Firc di Oncologia Molecolare | Therapeutic oligonucleotides |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004275140A (ja) * | 2003-03-18 | 2004-10-07 | National Institute Of Advanced Industrial & Technology | Dna又はrnaコンジュゲートの製造方法 |
| JP2005027569A (ja) * | 2003-07-04 | 2005-02-03 | National Institute Of Advanced Industrial & Technology | 新規dnaコンジュゲート及びそれを有効成分とするアンチセンス剤 |
| JP2005229946A (ja) * | 2004-02-20 | 2005-09-02 | National Institute Of Advanced Industrial & Technology | 細胞質局在化dna及びその製造方法 |
-
2004
- 2004-09-10 JP JP2004264447A patent/JP2006075110A/ja active Pending
-
2005
- 2005-09-08 WO PCT/JP2005/016483 patent/WO2006028160A1/ja not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004275140A (ja) * | 2003-03-18 | 2004-10-07 | National Institute Of Advanced Industrial & Technology | Dna又はrnaコンジュゲートの製造方法 |
| JP2005027569A (ja) * | 2003-07-04 | 2005-02-03 | National Institute Of Advanced Industrial & Technology | 新規dnaコンジュゲート及びそれを有効成分とするアンチセンス剤 |
| JP2005229946A (ja) * | 2004-02-20 | 2005-09-02 | National Institute Of Advanced Industrial & Technology | 細胞質局在化dna及びその製造方法 |
Non-Patent Citations (2)
| Title |
|---|
| KUBO T.ET AL: "Conjugate-gata Idenshi Iyaku ni yoru Human Telomerase Kassei Yokusei. ( Inhibition of Human Telomerase by Conjugate Genetic Medicines)", BIO INDUSTRY, vol. 21, no. 5, 12 May 2004 (2004-05-12), pages 30 - 35, XP002998178 * |
| NORTON J.T. ET AL: "Inhibition of human telomerase activity by peptide nucleic acids", NATURAL BIOTECHNOL., vol. 14, 1996, pages 615 - 619, XP001023086 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3124609A1 (en) | 2015-07-29 | 2017-02-01 | IFOM Fondazione Istituto Firc di Oncologia Molecolare | Therapeutics oligonucleotides |
| EP3650546A1 (en) | 2015-07-29 | 2020-05-13 | IFOM Fondazione Istituto Firc di Oncologia Molecolare | Therapeutic oligonucleotides |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006075110A (ja) | 2006-03-23 |
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