WO2005051982A1 - 糖ペプチド及び温度応答性ミセル - Google Patents
糖ペプチド及び温度応答性ミセル Download PDFInfo
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- WO2005051982A1 WO2005051982A1 PCT/JP2004/007246 JP2004007246W WO2005051982A1 WO 2005051982 A1 WO2005051982 A1 WO 2005051982A1 JP 2004007246 W JP2004007246 W JP 2004007246W WO 2005051982 A1 WO2005051982 A1 WO 2005051982A1
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- Prior art keywords
- gly
- temperature
- glycopeptide
- peptide
- pro
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/001—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof by chemical synthesis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/10—Dispersions; Emulsions
- A61K9/107—Emulsions ; Emulsion preconcentrates; Micelles
- A61K9/1075—Microemulsions or submicron emulsions; Preconcentrates or solids thereof; Micelles, e.g. made of phospholipids or block copolymers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K9/00—Peptides having up to 20 amino acids, containing saccharide radicals and having a fully defined sequence; Derivatives thereof
- C07K9/001—Peptides having up to 20 amino acids, containing saccharide radicals and having a fully defined sequence; Derivatives thereof the peptide sequence having less than 12 amino acids and not being part of a ring structure
Definitions
- the present invention relates to a glycopeptide which is a temperature-responsive amphiphilic conjugate and a temperature-responsive micelle comprising the glycopeptide. More particularly, it relates to novel formulations for drug delivery systems (DDS) and glycopeptides and micelles useful in microreactors.
- DDS drug delivery systems
- conventional temperature-responsive high-molecular monomers are highly biotoxic, acrylamide, and the like, and it is desired to develop a temperature-responsive substance that does not require the use of a vinyl conjugate. .
- Non-patent document l Macromolecules, 1998, 31, 2394
- Non-Patent Document 2 J. Am Chem. Soc. 1996, 118, 6092
- Non-Patent Document 3 Macromolecules, 1999, 32, 9067
- Non-Patent Document 4 Biomacromolecules, 2000, 1, 552
- Non-Patent Document 5 J. Phys. Chem. B, 1997, 101, 11007
- the present invention aims to provide a temperature-responsive amphiphilic glycopeptide using an oligopeptide.
- an object of the present invention is to provide a temperature-responsive Angstrom-level compound having high biocompatibility and to be a compound useful for medical materials, drug transport, agriculture, and the like.
- the present invention provides an elastin model peptide whose hydrophilicity and hydrophobicity change in response to temperature (
- the present invention relates to a synthesized glycopeptide which does not exist in nature, and is a glycopeptide represented by the following formula (1) and a temperature-responsive micelle comprising the glycopeptide.
- the invention's effect [0009]
- the glycopeptide of the present invention has a reversible and rapid temperature response, and the micelle of the present invention has a temperature response in which the particle size changes in a certain temperature range.
- glycopeptide of the present invention is a temperature-responsive molecule at the angstrom level, and is used in drug delivery systems and other molecular devices that require precise response.
- glycopeptide of the present invention is constituted by a molecular structure having high biocompatibility, and is a compound suitable for biomaterials and agricultural materials.
- sugars are known to interact specifically with cells, pathogenic bacteria, toxins, and viruses, and the glycopeptides of the present invention can be used more advantageously for drugs that control pathogens in a temperature-responsive manner. It becomes.
- FIG. 1 is a view showing a synthesis flow of a compound 1, a compound 4, and a compound 8.
- FIG. 2 is a view showing a CD spectrum of Compound 1 (relationship between wavelength and molecular ellipticity).
- FIG. 3 is a view showing a CD spectrum of Compound 1 (relationship between temperature and molecular ellipticity).
- FIG. 4 is a view showing a CD spectrum of Compound 4 (relationship between wavelength and molecular ellipticity).
- FIG. 5 is a view showing a CD spectrum of Compound 4 (relationship between temperature and molecular ellipticity).
- FIG. 6 is a view showing a CD spectrum of Compound 8 (relationship between wavelength and molecular ellipticity).
- FIG. 7 is a view showing a CD spectrum of Compound 8 (relationship between temperature and molecular ellipticity).
- FIG. 8 is a diagram showing the CD vector of a control compound (NH2-Vatro Pro-Gly-Vatro Gly-Vatro Pro-Gly-Vavo Gly-OH) (relation diagram between wavelength and molecular ellipticity). .
- FIG. 9 A diagram showing the CD vector of a control compound (NH2-Vat Pro-Gly-Vat Gly-Vat Pro-Gly-Vat Gly-OH) (relation diagram between temperature and molecular ellipticity). .
- FIG. 10 is a view showing a DLS measurement result of Compounds 1, 4, and 8.
- FIG. 11 is a graph showing the temperature responsiveness of micelles composed of Compound 1.
- FIG. 12 is a diagram of a ⁇ -A curve (pressure-area curve) of a gas-liquid interface of compound 1.
- Preferred sugar chains that can be used in the glycopeptide of the present invention are monosaccharide or oligosaccharide sugar chains, and more preferably are trisaccharide or less sugar chains.
- Preferred examples of the monosaccharide include mannose, a, j8-glucose, galactose, fucose, sialic acid, dalcosamine, N-acetyldarcosamine, N-acetylgalatatosamine and the like.
- oligosaccharide examples include maltose, cellobiose, ratatose, isomaltose, chitobiose, chitotriose, cellotriose, manoletotriose, cellotetraose, chitotetraose, cellopentaose, maltotetraose, maltopentaose, chitopentaose, and setoporose.
- the sugar chain constitutes a hydrophilic group, and when the peptide is aggregated by a temperature response, the hydrophilicity and hydrophobicity of the elastin model peptide are considered in order to make the glycopeptide amphiphilic.
- a sugar is appropriately selected.
- the linker between the peptide and the sugar chain is not limited as long as it has an organic group for binding the peptide and the sugar chain.
- Preferred linkers on the C-terminal side include paraamide phenoxide, alkylamine and
- L is a linker for linking a sugar chain to the N-terminal side of the peptide chain, and is preferably obtained by incorporating an amino acid having a carboxyl group such as glutamic acid or aspartic acid into the peptide chain.
- the sugar chains can be easily linked by further linking the two.
- the peptide in the present invention is an elastin model peptide oligopeptide (Val-Pro-Gly-X-Gly) n or (Glu-VaPro-Gly-X-Gly) n (where X is any amino acid residue). And n is an integer from 1 to 10. ).
- X in the above sequence is Val.
- a peptide having 5 amino acid residues or 10 amino acid residues is suitably used as a peptide forming a micelle having rapid temperature response.
- the ability to use longer peptide chains It is then desirable to attach longer oligosaccharide chains to maintain a balance of amphipathicity.
- a temperature-responsive amphipathic glycopeptide can be produced by binding an oligosaccharide chain to a peptide having 10 amino acids and 40 amino acids.
- the N-terminal of the peptide may be a group protected with acetinol, Boc B (t-butyloxycarbonyl) or Fmoc (9-fluorenylmethoxycarbonyl), in addition to the unprotected amino group.
- a first preferred embodiment of the present invention is a glycopeptide in which a monosaccharide mannose is bound to a peptide having an oligopeptide sequence of an elastin model peptide, using paraamide phenoxide as a linker.
- Specific examples include the following glycopeptides.
- a second preferred embodiment of the present invention is a glycopeptide obtained by partially changing the sequence of an elastin model peptide. It has been reported that a peptide in which the fourth residue of the elastin model sequence was changed also showed a temperature response (J. Phys. Chem. B, 1997, 101, 11007). The modified dangling product also shows temperature responsiveness. Specific examples include the following glycopeptides. [0018] [Formula 3]
- X is any amino acid residue.
- a third preferred embodiment of the present invention is a glycopeptide in which the sugar moiety to be bound to the elastin model peptide is changed to various sugar chains.
- X is any amino acid residue.
- a paraamide phenoxide is used as a linker and mannose is bound to the C-terminus of the elastin model peptide, and a side chain of glutamic acid and paraamide phenoxide are linked to the N-terminus.
- a glycopeptide to which mannose is bound as a linker is linked to the C-terminus of the elastin model peptide, and a side chain of glutamic acid and paraamide phenoxide are linked to the N-terminus.
- a part of the elastin model peptide is modified, paranose phenoxide is used as a linker, mannose is bound to the C-terminus, and the side chain of glutamic acid and para It is a glycopeptide having mannose bound to the N-terminus using amide phenoxide as a linker.
- X is any amino acid residue.
- X is any amino acid residue.
- a seventh preferred embodiment of the present invention is the following peptide in which the N-terminal of the elastin model peptide is protected and a sugar is bound.
- An eighth preferred embodiment of the present invention is the following peptide in which the N-terminus of the elastin model peptide is protected and a sugar is bound.
- Fmoc- (Va Pro-Gly-X-Gly) n-OH was synthesized by solid-phase synthesis by the Fmoc method, and then a linker was covalently bonded to the anomeric position of the sugar chain by a known method.
- the linker-linked sugar chain is covalently linked to the C-terminal of the previously synthesized oligopeptide by glycosylation to obtain a sugar chain-linked oligopeptide.
- the Fomc group at the N-terminal of the peptide is deprotected, purified by reversed-phase silica gel chromatography, and lyophilized to obtain the desired glycopeptide. (If you have LI)
- Fmoc-Glu (Va-Pro-Gly-X-Gly) n-OH is synthesized by solid-phase synthesis by the Fmoc method.
- the linker-linked sugar chain in which a linker is covalently bonded to the anomeric position of the sugar chain by a known method, is shared with the C-terminal of the oligopeptide previously synthesized and the glutamic acid side chain by glycosylation.
- the oligopeptides are linked to obtain oligopeptides having sugar chains linked to both ends.
- the target glycopeptide is obtained by the same method as described above.
- the sugar chain acts as a temperature-responsive hydrophobic group and the sugar chain acts as a hydrophilic group. Therefore, the glycopeptide easily forms a temperature-responsive micelle in water. I do.
- the peptide Normally, at higher temperatures, the peptide becomes more hydrophobic and tends to saturate at a certain level, with which the size of the micelles tends to increase with temperature and reach a certain maximum size.
- the maximum size of micelles can be controlled in the range of 100-100 nm.
- Compounds 4 and 8 were synthesized using mannose and each Fmocidai amino acid (Peptide Research Laboratories) as starting materials.
- Acetic anhydride (88 ml) and pyridine (78 ml) were placed in an eggplant flask, cooled to 0 ° C. in an ice bath, and D-mannose (100 g, 5.4 mmol) was added thereto and stirred magnetically.
- Pyridine was concentrated under reduced pressure by azeotropic boiling with toluene. Dissolve the concentrated target substance in ethyl acetate, add 1N hydrochloric acid, saturated aqueous NaHCO,
- the reaction mixture was diluted with a magnetic chromatographic form, washed three times with IN NaOH and three times with water, stirred with magnesium sulfate, and terminated after 28 hours.
- the molecular sieve was filtered through celite and the solution was dried. After filtering off magnesium sulfate, toluene was added thereto, and an azeotropic yellow solid was recrystallized from ethyl acetate and hexane to obtain white crystals.
- ⁇ -Nitrophenyl and D-mannoside were dissolved in methanol, and palladium hydroxide (6 mg) was added.
- a three-way cock was attached to the flask, a hydrogen balloon was attached, and the inside of the flask was replaced with hydrogen.
- Peptide 1 (140 mg, 0.13 mmol) was dissolved in dehydrated DMF and cooled to 0 ° C.
- 2- (1 ⁇ -7-azabenzotriazole-1-yl) -1, 1, 3,3-tetramethylhexafluorohexaphosphate (HATU) (59.3 mg, 1.2 eq) and diisopropylethyl (DIEA) (54 ⁇ l, 2.4 eq) was stirred with kamen.
- a DMF solution 1.5 eq
- p-aminophenol a-D-mannoside was added, and the mixture was stirred at room temperature.
- the conformational change with temperature of the glycopeptides (compounds 1 and 4) obtained as described above was measured using a CD spectrum (JASCO, J-720).
- Sugar Bae flop tide PBS buffer solution 5 X 10- 4 (M) by using a quartz cell having an optical path length of lmm was subjected to measurement of CD spectra.
- Figures 2 and 3 (A) CD spectrum of compound 1 (B) [ ⁇ ] at each temperature of 220 nm (where, ⁇ represents molecular ellipticity; the same applies hereinafter)
- Glycopeptide particle size was measured by dynamic light scattering (DLS, Otsuka Electronics HK-6600) to observe micelle formation.
- Temperature-responsive polymers such as poly-N-isopropylacrylamide, and multimers of elastin model peptides, which are temperature-responsive polymers, are macromolecules. Usually, several hours to 24 hours) are observed. On the other hand, the glycopeptide of the present invention has a small molecular force at the angstrom level, and therefore has a quick response, and the force is maintained even if the response is repeated.
- Compound 1 also has a sugar as a control molecule!
- the temperature-responsive glycopeptide of the present invention has reversible and rapid temperature response, and forms micelles. Since it is an Angstrom-level temperature-responsive molecule, it is used for drug delivery systems (DDS) and other molecular devices that require precise response.
- DDS drug delivery systems
- the glycopeptide when used in a drug delivery system that delivers a necessary amount of a drug administered to a living body to a necessary fibrous tissue when needed and performs an effective drug treatment, Because of its rapid temperature response, it rapidly responds to the body temperature and skin temperature of a living body or a temperature stimulus from the outside of a living body to release micelle-encapsulated drugs. In the field of materials, it has high applied value.
- micelle-forming glycopeptides can deliver drugs specific to organs or pathogens or toxins. it is conceivable that. Therefore, this glycopeptide can be said to be very industrially useful because it can be used for DDS which has both controlled release and target-directed properties.
- the present glycopeptide can be used as a modified sugar chain.
- glycosylation which is one of post-translational modifications of a protein
- the present glycopeptide is capable of controlling the inactivation or enhancement of the activity of proteins, including enzymes, in a temperature-responsive manner, and is of great pharmaceutical interest.
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Abstract
Description
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Priority Applications (1)
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US10/580,782 US20080023859A1 (en) | 2003-11-28 | 2004-05-27 | Glycopeptides and Temperature-Responsive Micelles |
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JP2003400817 | 2003-11-28 | ||
JP2003-400817 | 2003-11-28 |
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WO2005051982A1 true WO2005051982A1 (ja) | 2005-06-09 |
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PCT/JP2004/007246 WO2005051982A1 (ja) | 2003-11-28 | 2004-05-27 | 糖ペプチド及び温度応答性ミセル |
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WO (1) | WO2005051982A1 (ja) |
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JP5673506B2 (ja) * | 2011-11-18 | 2015-02-18 | 信越化学工業株式会社 | 合成石英ガラス基板用研磨剤及び合成石英ガラス基板の製造方法 |
CN104725442B (zh) * | 2015-04-15 | 2018-02-02 | 湘潭大学 | 一种制备对硝基苯基‑α‑D‑吡喃甘露糖苷的方法 |
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US4966848A (en) * | 1988-02-08 | 1990-10-30 | The General Hospital Corporation | Isolation, purification, characterization, cloning and sequencing of N α-acetyltransferase |
US5223421A (en) * | 1989-10-25 | 1993-06-29 | The General Hospital Corporation | Identification of methionine Nα-acetyltransferase |
US5688489A (en) * | 1995-09-15 | 1997-11-18 | Resolution Pharmaceuticals, Inc. | Non-receptor mediated imaging agents |
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2004
- 2004-05-27 WO PCT/JP2004/007246 patent/WO2005051982A1/ja active Application Filing
- 2004-05-27 US US10/580,782 patent/US20080023859A1/en not_active Abandoned
Non-Patent Citations (6)
Title |
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MCMILLAN R.A. ET AL: "High-Resolution Topographic, Elastin-Mimetic Hydrogels.", MACROMOLECULES, vol. 32, no. 26, 1999, pages 9067 - 9070, XP002996296 * |
MIURA Y. ET AL: "Ondo Otosei To-peptide no gosei to Kino Kaiseki", POLYMER PREPRINTS, vol. 52, no. 13, 10 September 2003 (2003-09-10), JAPAN, pages 3771 - 3772, XP002996294 * |
SHIBATA C. ET AL.: "Thermo-Responsive Glycopeptides ; Synthesis and Properties (Abstarct IIPe143)", POLYMER PREPRINTS, SOCIETY OF POLYMER SCIENCE, vol. 52, no. 5, 8 May 2003 (2003-05-08), JAPAN, pages 1066, XP002996293 * |
ST.HILAIRE P. ET AL: "Oligosaccharide Mimentics Obtained by Novel, Rapid Screening of Carboxylic Acid Encoded. Glycopeptide Libraries.", RHE AMERICAN CHEMICAL, vol. 120, no. 51, 1998, pages 13312 - 13320, XP002210138 * |
URRY D.W. ET AL: "Physical Chemistry of Biological Free Energy Transduction as Demonstrated by Elastic Protein-Based Polymers.", PHYSICAL CHEMISTRY B, vol. 101, no. 51, 1997, pages 11007 - 11028, XP001021863 * |
VAN HEST J. ET AL: "Bionspired triblock copolymers prepared by atom transfer radical copolymerization.", ACS SYMPOSIUM SERIES (CHAPTER 28), vol. 854, 2003, pages 394 - 410, XP002996297 * |
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