EP0375722A1 - Procede d'obtention par voie chimique d'oligonucleotides marques et applications biologiques - Google Patents
Procede d'obtention par voie chimique d'oligonucleotides marques et applications biologiquesInfo
- Publication number
- EP0375722A1 EP0375722A1 EP19880907715 EP88907715A EP0375722A1 EP 0375722 A1 EP0375722 A1 EP 0375722A1 EP 19880907715 EP19880907715 EP 19880907715 EP 88907715 A EP88907715 A EP 88907715A EP 0375722 A1 EP0375722 A1 EP 0375722A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- group
- marker
- oligonucleotides
- substitution
- cytosine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 108091034117 Oligonucleotide Proteins 0.000 title claims abstract description 28
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- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 claims description 4
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- YXFWFUSVDJIVIV-UHFFFAOYSA-N 4-nitro-2h-triazole Chemical compound [O-][N+](=O)C=1C=NNN=1 YXFWFUSVDJIVIV-UHFFFAOYSA-N 0.000 claims description 2
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 claims description 2
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- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical group O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 claims description 2
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- 125000000623 heterocyclic group Chemical group 0.000 claims description 2
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- 239000004793 Polystyrene Substances 0.000 description 1
- PYMYPHUHKUWMLA-LMVFSUKVSA-N Ribose Natural products OC[C@@H](O)[C@@H](O)[C@@H](O)C=O PYMYPHUHKUWMLA-LMVFSUKVSA-N 0.000 description 1
- HSXGULMUJYLHSS-UHFFFAOYSA-N S(=O)(=O)=C1N(NN=C1)[N+](=O)[O-].C1=CC=CC=C1 Chemical compound S(=O)(=O)=C1N(NN=C1)[N+](=O)[O-].C1=CC=CC=C1 HSXGULMUJYLHSS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- HMFHBZSHGGEWLO-UHFFFAOYSA-N alpha-D-Furanose-Ribose Natural products OCC1OC(O)C(O)C1O HMFHBZSHGGEWLO-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 125000004057 biotinyl group Chemical group [H]N1C(=O)N([H])[C@]2([H])[C@@]([H])(SC([H])([H])[C@]12[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C(*)=O 0.000 description 1
- 229940098773 bovine serum albumin Drugs 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000010549 co-Evaporation Methods 0.000 description 1
- 239000002299 complementary DNA Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- UHDGCWIWMRVCDJ-ZAKLUEHWSA-N cytidine Chemical compound O=C1N=C(N)C=CN1[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O1 UHDGCWIWMRVCDJ-ZAKLUEHWSA-N 0.000 description 1
- OPTASPLRGRRNAP-UHFFFAOYSA-N cytosine Chemical group NC=1C=CNC(=O)N=1 OPTASPLRGRRNAP-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229960000633 dextran sulfate Drugs 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 102000052834 human SERPINC1 Human genes 0.000 description 1
- 229960004336 human antithrombin iii Drugs 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 108020004999 messenger RNA Proteins 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- QYSGYZVSCZSLHT-UHFFFAOYSA-N octafluoropropane Chemical compound FC(F)(F)C(F)(F)C(F)(F)F QYSGYZVSCZSLHT-UHFFFAOYSA-N 0.000 description 1
- 229940046166 oligodeoxynucleotide Drugs 0.000 description 1
- 239000002751 oligonucleotide probe Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000006174 pH buffer Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 108091033319 polynucleotide Proteins 0.000 description 1
- 102000040430 polynucleotide Human genes 0.000 description 1
- 239000002157 polynucleotide Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 108091008146 restriction endonucleases Proteins 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 229940063675 spermine Drugs 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical class OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- 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
Definitions
- BIOLOGICAL BRANDS AND APPLICATIONS BIOLOGICAL BRANDS AND APPLICATIONS.
- the subject of the invention is a process for the chemical synthesis of labeled oligonucleotides and the biological applications of these oligonucleotides as cold probes.
- kits for the enzymatic labeling of oligonucleotide probes with biotinylated triphosphate nucleotides are already marketed.
- the detection of such biotinylated probes is done by enzymatic systems, such as peroxidase, alkaline phosphatase, or galactosidase, or colorimetric systems by fluorescence or chemiluminescence, coupled to streptavidin, protein of very high affinity for biotin.
- the object of the invention is therefore to provide a process for obtaining oligonucleotides by chemical synthesis, allowing the incorporation of labeled motifs at one or more sites and this, in a determined manner.
- motifs can be both nucleosides and nucleotides, and may include ribose and / or 2-deoxy-ribose as sugar.
- the chemical synthesis method according to the invention is characterized by the following stages: - during the solid phase chemical synthesis of the oligonucleotide sequence to be constructed, there is incorporated in the place of one or more cytosines provided on the sequence , respectively one or more thymines whose position 4 is substituted by an activating group, the oligonucleotide sequence constructed is reacted with a compound of formula RAR 'in which R and R', are identical and represent a group -NH 2 , -SH or -OH, or R and R 'are different, one representing a group -NH 2 , SH or -OH, the other one group -NH-X, SX or -OX, in which X is a group capable of serving as a marker for the molecule; and
- A represents an alkyl chain of approximately 4 to 20 carbon atoms, optionally comprising heteroatoms, such as 0, N or S; which leads to obtaining methyl-5-cytosine (s) with a substitution chain in position 4, instead of the activated thymine (s), and when the compound RAR 'does not contain a marker group, the following are introduced a marker group on the methyl-cytosine substitution chain.
- the synthesis method according to the invention also has the advantage of leading to oligonucleotides in which the 5 'OH and 3' OH ends remain free. It is thus possible, for example, to insert them into biological vectors.
- the step of incorporating thymine motifs activated at position 4 is carried out during the construction of the oligonucleotide sequence.
- This sequence is constructed by successively coupling, from a first nucleotide, or nucleoside, attached to a solid support, the motifs of the sequence sought and by replacing, as desired, a cytosine motif with a thymine motif activated in position 4.
- solid support covers any support which may remain insoluble in at least one specific medium capable of containing nucleic acids in solution.
- supports can be used. These are, for example, organic polymers of silica or glass beads. These supports are advantageously treated beforehand (functionalization) in order to give them functional groups capable of being brought into play in a reaction for fixing a separate molecule, either directly or via an arm.
- Such supports are commercially available. These are, for example, polyacrylmorpholide type gels, for example those sold under the designation "ENZACRYL K-2". Polyacrylamides, polystyrenes or cellulose will also be mentioned.
- the coupling of nucleosides, or nucleotides is carried out pattern by pattern, or by groups of nucleotides.
- For the constitution of the sequence use is advantageously made of known methods of extending nucleotide chains in solid phase, in particular the so-called phosphotriesters or phophoramidite methods. Techniques of this type are described for example in the Bibliographical references (1) to (6), given at the end of the description.
- the condensation is carried out in the presence of a coupling agent, preferably used in excess.
- the study of coupling yields shows that the condensation of activated thymidine units is not accompanied by a significant drop in the latter.
- the activation of position 4 of the thymine comprises the fixing, on this vertex, of a heterocyclic derivative of the triazole, nitro-triazole or tetrazole, imidazole type.
- a preferred activating group which makes it easy to have an activated thymine as desired, consists of the 1,2,4-triazolyl group. Its fixation on thymine is carried out by operating, for example, according to one of the techniques described in (7), (8) or (9).
- the synthesized oligonucleotide sequence which contains, at the desired site (s), an activated thymine motif, is reacted with a compound of formula R-A-R '.
- a bifunctional compound such as a diaminoalkane, a glycol or an ⁇ , ⁇ -aminoalcohol is used.
- Suitable diaminoalkanes include ethylene diamine, diamino 1-6 hexane, diamino 1-10 decane or spermine.
- the substitution of activated thymines with a diaminoalkane is carried out in an organic solvent such as pyridine, preferably with an excess of amine.
- oligonucleotide sequences obtained, containing the substituted methyl-cytosine units are unhooked from the support on which they were fixed during their construction and are unlocked.
- conventional methods of elimination are used protecting groups for bases and for phosphates used in solid phase synthesis.
- the phosphate groups are more specifically unblocked using for example TMGPAO, then concentrated ammonia. Operating at room temperature, the TMGPAO is left to act for approximately 14 hours. The action of concentrated ammonia is advantageously carried out at a temperature above ambient, preferably of the order of 50 ° C. for approximately 2 to 7 hours, in particular approximately 5 hours.
- the DNA fragments are then purified by passage through one or more ion exchange columns, then deprotected, for example using acetic acid and, preferably, again purified.
- substitution chain does not contain a marker group
- the oligonucleotide sequence, comprising the methylcytosine motif (s) substituted by a chain in position 4 is reacted with a group capable of serving as a marker for the molecule.
- peptides usually used, mention will be made of peptides, haptens, colored or fluorescent groups such as rhodamine, fluorescein or dansyl, or even enzymes such as phosphatase or peroxidase.
- Preferred markers are constituted by peptides, and are coupled with oligonucleotides comprising amino-terminated substitution chains.
- Biotin is more especially used in activated form, for example in the form of a biotinyl-N-hydroxysuccinimide ester.
- the biotinylation of amino oligonucleotides is preferably carried out by subjecting these oligonucleotides, in basic medium, to the action of biotin under activated form, in an organic solvent of the DMF type.
- the oligonucleotides are thus more especially in solution in a buffer of pH from 8 to 10 approximately, preferably 9.
- the reaction is advantageously carried out with an excess of activated biotin.
- the oligonucleotide concentration is in a ratio of approximately 10 -3 / 1 relative to that of the activated biotin.
- the reaction temperature does not exceed the ambient and can vary from approximately 0oC to 25oC. satisfactory results are obtained by maintaining the reaction mixture for 3 to 8 hours, preferably approximately 6 hours, at a temperature close to ambient, then from 8 to 20 hours, preferably approximately from 12 to 14 hours at a temperature close to from 0oC.
- the labeled DNA fragments obtained according to the invention are purified for their biological applications.
- the elimination of the salts formed during the synthesis is advantageously carried out using one or more columns of ion exchange resins or of Sephadex or Biogel.
- DMTr T thymidine protected in 5 'by a group dimethoxytrityl and substituted in 3 'with a group of formula TPSNT: triisopropyl -2,4,6 benzene sulfonyl-3-nitro triazole -1,2,4, TMGPAO: pyridine-aldoximate-tetramethyl guanidine
- DCCI dicyclohexyl carbodiimide
- DCU dicyclohexyl urea
- BNHS biotinyl N hydroxysuccinimide
- TEAB triethyl bicarbonate 1:
- Biot biotinyl
- B (NH - (CH 2 ) 10 -NH-Biot) in position 4 of C *
- This synthesis includes three stages:
- a polyacrylamide type resin such as that sold under the brand Enzacryl K 2 is used as support, the thymidine substitution rate being 130 ⁇ mol per gram of support.
- the rate of substitution of the support is evaluated by assaying in UV at 507 nm of the DMT cation released by acid treatment (2% benzene sulfonic acid) in a mixture.
- CH 2 Cl 2 / CH 3 OH 70-30.
- the nucleoside DMTr CA (6 eq) is âecyanoethylated with a mixture of triethylamine-pyridine-H 2 O: 1-3-1 (TPE) for 20 minutes, then activated with 18 eq. of TPSNT and coupled to the 5'OH function of the thymidine attached to the support.
- the coupling yield was evaluated by UV dosage at 507 nm of the DMT cation released by treatment with benzene sulfonic acid. It is 100% for this first coupling.
- the reaction medium is stored at room temperature for at least 2 days.
- the resin is then wrung and then rinsed with pyridine to remove any trace of remaining diamine.
- the amino sequences are then detached from the support and released by the conventional methods used in solid phase synthesis.
- the oligonucleotides are released by adding 1.1 ml (1.1 mmol) of a solution of 1 M TMGPAO in a water-dioxane mixture: 1/1.
- TMGPAO 1.1 mmol
- the resin is then filtered, rinsed and the juice is concentrated and then deposited on a column of Dowex NH 4 + ® resin eluted with H 2 O.
- the product is lyophilized, then purified at the DMTr stage by HPLC on a preparative Nucleosil ® column with a gradient from 5 to 25% or from 5 to 50% acetonitrile in a buffer of 10 M triethyl ammonium acetate in 20 minutes.
- sequences are detritylated in 80% acetic acid in H 2 O for 20 minutes at room temperature.
- the acid is then evaporated and then entrained by 2 or 3 co-evaporations with toluene.
- the reaction medium is in the form of a white suspension which is heated for half an hour at 50 ° C. and then kept for 20 hours with stirring at room temperature.
- the precipitate of dicyclohexyl urea formed is filtered and the filtrate is stored for approximately 14 hours at 0 ° C.
- the insoluble part of DCU formed is then filtered and the filtrate is concentrated.
- BNHS is recrystallized from a large volume of isopropanol.
- the probes are then purified by HPLC on an analytical or preparative Nucleosil ® column.
- the oligonucleotides are exchanged in ammonium form on a Dowex column
- Analytical nucleosil ® Analytical nucleosil ® .
- Probes 2 and 3 are prepared by operating as indicated above.
- Example 3 Disclosure of Dot Blots of biotinylated probes.
- the probes are deposited at different concentrations (from 100 pmol to 0.5 fmol) on nitrocellulose and then fixed by passage in the oven at 80oC for 1 hour.
- the filters are blocked with bovine serum albumin.
- the first detection kit marketed 1 follows a 3-step protocol:
- Amplified signals can be obtained thanks to the property of streptavidin to bind 4 molecules of biotin.
- the second kit 2 is done in two stages:
- Amounts of 50 fmol of DNA from biotinylated probes deposited on nitrocellulose have been revealed. Hybridization of the probes with DNA immobilized on nitrocellulose.
- nitrocellulose filters Preparation of nitrocellulose filters.
- the method of the invention makes it possible to obtain, by chemical means, oligonucleotides which can be used as probes for detecting complementary sequences of nucleic acids.
- the detection limit with the streptavidin-alkaline phosphatase kit is around 15 fentomoles.
- These probes are also of great interest for the separation of a complementary polynucleotide contained in a solution brought into contact with this supported molecule, the detection or separation being carried out under conditions allowing their mutual hybridization. Thanks to the formation of a double strand on the support, it is also possible to purify proteins giving rise to an interaction with a DNA fragment.
- the inventors have found that when the marker group is introduced on the 5 'side, a duplex which is more stable to hybridization is obtained than when this group is on the 3' side.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Saccharide Compounds (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8712260 | 1987-09-03 | ||
FR8712260A FR2620122B1 (fr) | 1987-09-03 | 1987-09-03 | Procede d'obtention par voie chimique d'oligonucleotides marques et applications biologiques |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0375722A1 true EP0375722A1 (fr) | 1990-07-04 |
Family
ID=9354608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19880907715 Withdrawn EP0375722A1 (fr) | 1987-09-03 | 1988-09-02 | Procede d'obtention par voie chimique d'oligonucleotides marques et applications biologiques |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0375722A1 (fr) |
JP (1) | JPH03500169A (fr) |
FR (1) | FR2620122B1 (fr) |
WO (1) | WO1989001941A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2632955B1 (fr) * | 1988-06-20 | 1991-12-27 | Oris Ind | Derives de nucleosides utilisables pour la synthese d'oligonucleotides marques, oligonucleotides obtenus a partir de ces derives et leur synthese |
US6361940B1 (en) | 1996-09-24 | 2002-03-26 | Qiagen Genomics, Inc. | Compositions and methods for enhancing hybridization and priming specificity |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4626501A (en) * | 1983-09-02 | 1986-12-02 | Integrated Genetics, Inc. | Labeled DNA |
FR2569406A1 (fr) * | 1984-08-22 | 1986-02-28 | Pasteur Institut | Sonde mixte et ses applications, son precurseur, leur preparation et derives comportant une base modifiee pour cette preparation |
EP0209996A3 (fr) * | 1985-06-25 | 1987-09-02 | Siska Diagnostics,Inc. | Sondes d'acides nucléiques renfermant des cytidines N4-(amino-substituées) |
-
1987
- 1987-09-03 FR FR8712260A patent/FR2620122B1/fr not_active Expired
-
1988
- 1988-09-02 EP EP19880907715 patent/EP0375722A1/fr not_active Withdrawn
- 1988-09-02 WO PCT/FR1988/000435 patent/WO1989001941A1/fr not_active Application Discontinuation
- 1988-09-02 JP JP50707388A patent/JPH03500169A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO8901941A1 * |
Also Published As
Publication number | Publication date |
---|---|
JPH03500169A (ja) | 1991-01-17 |
FR2620122A1 (fr) | 1989-03-10 |
FR2620122B1 (fr) | 1989-12-29 |
WO1989001941A1 (fr) | 1989-03-09 |
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