WO2015145797A1 - 止血用医薬組成物 - Google Patents
止血用医薬組成物 Download PDFInfo
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- WO2015145797A1 WO2015145797A1 PCT/JP2014/070703 JP2014070703W WO2015145797A1 WO 2015145797 A1 WO2015145797 A1 WO 2015145797A1 JP 2014070703 W JP2014070703 W JP 2014070703W WO 2015145797 A1 WO2015145797 A1 WO 2015145797A1
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- sugar chain
- amino acid
- polypeptide
- pharmaceutical composition
- hemostasis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/14—Peptides containing saccharide radicals; Derivatives thereof, e.g. bleomycin, phleomycin, muramylpeptides or vancomycin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0009—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form containing macromolecular materials
- A61L26/0028—Polypeptides; Proteins; Degradation products thereof
- A61L26/0047—Specific proteins or polypeptides not covered by groups A61L26/0033 - A61L26/0042
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0061—Use of materials characterised by their function or physical properties
- A61L26/0066—Medicaments; Biocides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L26/00—Chemical aspects of, or use of materials for, wound dressings or bandages in liquid, gel or powder form
- A61L26/0061—Use of materials characterised by their function or physical properties
- A61L26/008—Hydrogels or hydrocolloids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/04—Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/252—Polypeptides, proteins, e.g. glycoproteins, lipoproteins, cytokines
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/418—Agents promoting blood coagulation, blood-clotting agents, embolising agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/04—Materials for stopping bleeding
Definitions
- the present invention relates to a pharmaceutical composition for hemostasis comprising a sugar chain-polypeptide complex.
- Biogels such as hydrogels and fibrin glues are used in research base materials such as three-dimensional culture, surgical base materials such as intraoperative / post-operative hemostatic agents and wound healing sheets, drug delivery systems (DDS), and the like.
- research base materials such as three-dimensional culture
- surgical base materials such as intraoperative / post-operative hemostatic agents and wound healing sheets
- drug delivery systems DDS
- fibrin glue is highly useful as a hemostatic agent at the time of surgery, but since the raw material is derived from human blood, when it is actually used at the time of surgery, the patient is infected with the hepatitis virus mixed in the fibrin glue Has become a major social problem. In addition, there is a problem in that a bio-derived biogel cannot always supply a gel of uniform quality.
- An object of the present invention is to provide a pharmaceutical composition for hemostasis capable of forming a transparent and homogeneous hydrogel in a wide range of pH, which has higher usability than conventional hemogels using biogels.
- the inventors have found that by attaching a sugar chain to a polypeptide comprising an amino acid sequence in which polar amino acid residues and nonpolar amino acid residues are alternately arranged.
- the produced sugar chain-polypeptide complex surprisingly exhibits high water solubility in a wide pH range, particularly in the neutral range, and not only forms a transparent and homogeneous hydrogel, but this hydrogel is also a hemostatic agent.
- the present invention was found to be extremely useful.
- the present invention is a pharmaceutical composition for hemostasis comprising a sugar chain-polypeptide complex, wherein the polypeptide in the sugar chain-polypeptide complex has alternating polar amino acid residues and nonpolar amino acid residues.
- the present invention provides a hemostatic pharmaceutical composition characterized by comprising a polypeptide comprising an amino acid sequence arranged in the above, wherein one or more sugar chains are bound to the polypeptide.
- the polypeptide in the sugar chain-polypeptide complex has 8 to 34 amino acid residues in which polar amino acid residues and nonpolar amino acid residues are alternately arranged.
- the sugar chain-polypeptide complex is capable of forming a hydrogel containing a ⁇ -sheet structure by self-assembly in an aqueous solution having a pH near neutral. It is characterized by.
- the concentration of the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition is 0.1% by weight to 20% by weight.
- the total number of sugar residues present in one or more sugar chains bound to the polypeptide is 5 or more.
- the number of sugar chains bonded to the polypeptide is 1, 2, or 3.
- the sugar chain is a branched sugar chain.
- the pharmaceutical composition is in a hydrogel state.
- the pharmaceutical composition for hemostasis according to the present invention has high water solubility in a wide pH range including a neutral range, and forms a uniform and transparent hydrogel. It can be used as a hemostatic agent with high usability. Moreover, since it can be used in a wide pH range, an application site (affected part) is not easily restricted.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention has high water solubility in a wide pH range including a neutral range, it forms a uniform and transparent hydrogel.
- a sol state and a gel state can exist reversibly. That is, once a sugar chain-polypeptide complex is formed into a gel state, it can be again in a gel state even if it is converted into a sol state by mechanical stirring. Therefore, the gel can be distributed in a gel state (ie, Ready-to-Use state), and the gel is formed at a pH suitable for gelation (for example, acidic pH) like other peptide gels.
- the sugar chain-polypeptide complex according to the present invention is very excellent in operability as compared with other peptide gels.
- the pharmaceutical composition for hemostasis according to the present invention has a wide usable pH range, problems such as clogging of syringes and tubes during use are unlikely to occur.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention is modified by a sugar chain present in the living body of an animal, compared to a peptide without any modification, Antigenicity is reduced.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention has almost no risk of toxicity as seen with compounds modified with polyethylene glycol (PEG) or the like. Therefore, the pharmaceutical composition for hemostasis according to the present invention is highly safe when used for a living body.
- the pharmaceutical composition for hemostasis according to the present invention forms a uniform and transparent hydrogel under physiological conditions (neutral range), and is less antigenic. Therefore, it is suitable as a hemostatic agent used in animal living bodies.
- FIG. 1 shows the results of circular dichroism (CD) measurement for compositions obtained by dissolving C (DiGlcNAc)-(RADA) 4 in ultrapure water, saline or phosphate buffer solution.
- FIG. 2 shows the results of circular dichroism (CD) measurement for compositions obtained by dissolving (RADA) 4 in ultrapure water, saline or phosphate buffer solution.
- FIG. 3 shows a diagram comparing the fibrous structure-forming ability of C (DiGlcNAc)-(RADA) 4 and (RADA) 4.
- FIG. 4 shows the storage modulus of C (DiGlcNAc)-(RADA) 4 and (RADA) 4 in the aqueous solution state.
- FIG. 1 shows the results of circular dichroism (CD) measurement for compositions obtained by dissolving C (DiGlcNAc)-(RADA) 4 in ultrapure water, saline or phosphate buffer solution.
- FIG. 3 shows a diagram
- FIG. 5 shows the storage modulus of C (DiGlcNAc)-(RADA) 4 and (RADA) 4 after addition of salt.
- FIG. 6 shows the distribution of hemostatic effect scores 3 minutes after application of C (DiGlcNAc)-(RADA) 4 or (RADA) 4 in a rat liver puncture model.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention may be derived from a living organism or produced by chemical synthesis. However, safety, quality stability, sugar chain From the standpoint of uniformity, it is preferably produced by chemical synthesis.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention includes, for example, interactions such as electrostatic interaction, hydrogen bonding, and hydrophobic interaction between peptide molecules in an aqueous solution.
- interactions such as electrostatic interaction, hydrogen bonding, and hydrophobic interaction between peptide molecules in an aqueous solution.
- the sugar chain-polypeptide complex “self-assembles” in an aqueous solution means that polypeptides interact with each other in an aqueous solution (for example, electrostatic interaction, hydrogen bonding, van der Waals, etc.). Means spontaneous assembly via forces, hydrophobic interactions, etc.) and should not be interpreted in a limited sense.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention can self-assemble in an aqueous solution to form a ⁇ sheet structure. Furthermore, a hydrogel can be formed by overlapping the ⁇ sheet structure several times.
- the method for confirming that the sugar chain-polypeptide complex forms a ⁇ -sheet structure in the aqueous solution is not particularly limited. For example, circular dichroism (CD) of an aqueous solution containing the sugar chain-polypeptide complex This can be confirmed by measuring. Generally, as a characteristic of molecules having a ⁇ sheet structure, a maximum is observed at a wavelength near 197 nm and a minimum is observed at a wavelength near 216 nm. By confirming the peak, formation of the ⁇ sheet structure can be confirmed.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention comprises an amino acid sequence in which polar amino acid residues and nonpolar amino acid residues are alternately arranged, so that a ⁇ sheet structure can be formed in an aqueous solution.
- a polar amino acid residue can be arranged on one side of the ⁇ sheet structure, and only a non-polar amino acid residue can be arranged on the other side. Therefore, such a ⁇ sheet structure can be aggregated so as to hide a hydrophobic surface (a surface on which only nonpolar amino acid residues are arranged) to form a two-layer structure.
- a three-dimensional structure for example, hydrogel
- the pH is near neutral means that the pH is around 7.0, more specifically, the pH is in the range of 5.0 to 9.0, preferably the pH. Is within the range of 6.0 to 8.0.
- the concentration of the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition of the present invention can be appropriately adjusted by those skilled in the art according to the application symptom and application site of the present invention. % To 20% by weight, preferably 0.2% to 15% by weight, and more preferably 0.5% to 10% by weight. If the concentration of the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition is 0.1% by weight or less, the hydrogel may not be formed appropriately.
- the hydrogel broadly means a gel-like or sol-like composition in which the dispersion medium is substantially water, and should not be interpreted in a limited sense.
- the hemostatic pharmaceutical composition of the present invention may be used in an aqueous solution state or in a hydrogel state.
- the method for preparing the aqueous solution or the hydrogel is not particularly limited.
- a pharmaceutical composition for hemostasis in an aqueous solution state may be obtained by dissolving a sugar chain-polypeptide complex in ultrapure water.
- a pharmaceutical composition for hemostasis in a hydrogel state may be obtained by further adding a salt-containing solvent (for example, physiological saline, PBS or the like) to an aqueous solution in which the peptide complex is dissolved in ultrapure water.
- a salt-containing solvent for example, physiological saline, PBS or the like
- the hemostatic pharmaceutical composition is not limited to those containing only a sugar chain-polypeptide complex and a solvent (water, PBS, physiological saline, etc.), and may contain various other components.
- a medicine having a disinfecting / sterilizing component it is possible not only to stop bleeding from the wound, but also to sterilize / disinfect the wound at the same time.
- the hemostatic pharmaceutical composition of the present invention has a low storage elastic modulus in an aqueous solution state and a high storage elastic modulus in a hydrogel state.
- the pharmaceutical composition for hemostasis of the present invention forms a transparent hydrogel having a uniform fibrous structure in a wide pH range including a neutral range.
- the application symptom and application site of the pharmaceutical composition for hemostasis of the present invention are not particularly limited, but due to the above properties, in particular, when there is a need for visual observation of the affected area such as during surgery, hemostasis at the bleeding site corresponding to the blind spot, It can be suitably used for hemostasis of a wide range of bleeding sites, hemostasis of bleeding sites of three-dimensional or complicated shapes, and the like.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition can self-assemble in an aqueous solution having a pH near neutral to form a hydrogel containing a ⁇ -sheet structure.
- a hydrogel containing a ⁇ -sheet structure can self-assemble even in an aqueous solution whose pH is not near neutral.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention includes a polypeptide comprising an amino acid sequence in which polar amino acid residues and nonpolar amino acid residues are alternately arranged.
- a polypeptide comprising an amino acid sequence in which polar amino acid residues and nonpolar amino acid residues are alternately arranged.
- the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention includes a polypeptide comprising an amino acid sequence in which polar amino acid residues and nonpolar amino acid residues are alternately arranged.
- Amino acid is used in its broadest sense and includes non-protein constituent amino acids such as amino acid variants and derivatives as well as protein constituent amino acids.
- amino acids in the present invention include, for example, protein-modified L-amino acids; D-amino acids; chemically modified amino acids such as amino acid variants and derivatives; norleucine, ⁇ -alanine It will be appreciated that non-proteinogenic amino acids such as ornithine; and chemically synthesized compounds having properties known in the art that are characteristic of amino acids.
- protein non-constituent amino acids include ⁇ -methyl amino acids (such as ⁇ -methylalanine), D-amino acids, histidine-like amino acids (2-amino-histidine, ⁇ -hydroxy-histidine, homohistidine, ⁇ -fluoromethyl-histidine and ⁇ -methyl-histidine etc.), amino acids with extra methylene in the side chain (“homo” amino acids) and amino acids in which the carboxylic acid functional amino acids in the side chain are replaced with sulfonic acid groups (eg cysteic acid) .
- the amino acid used in the present invention may be a protein-constituting amino acid.
- the polar amino acid residue is not particularly limited as long as the side chain can have polarity, and includes, for example, an acidic amino acid residue and a basic amino acid residue.
- acidic amino acid residues include, for example, aspartic acid (Asp: D) residues, glutamic acid (Glu: E), etc.
- basic amino acids include, for example, arginine (Arg: R), Includes lysine (Lys: K), histidine (His: H) and the like.
- aspartic acid (Asp: D) or the like may be expressed as “Asp” in three letters or “D” in one letter as an abbreviation for aspartic acid. means.
- amino acid residues containing a hydroxyl group, an acid amide group, a thiol group, and the like are assumed to be polar and are included in polar amino acid residues.
- tyrosine (Tyr: Y), serine (Ser: S), threonine (Thr: T), asparagine (Asn: N), glutamine (Gln: Q), and cysteine (Cys: C) are polar. Included in amino acid residues.
- the nonpolar amino acid residue is not particularly limited as long as the side chain has no polarity.
- alanine Al: A
- valine Val: V
- leucine Leu: L
- Isoleucine I
- methionine Metal: M
- phenylalanine Phe: F
- tryptophan Trp: W
- glycine Gly: G
- proline Pro: P
- the “amino acid sequence in which polar amino acid residues and nonpolar amino acid residues are alternately arranged” is preferably the amino acid sequence is It may be a repetitive sequence of “RADA” (2 to 8 repetitions, preferably 3 to 6 repetitions), more preferably the amino acid sequence is RADARADARADARADA (SEQ ID NO: 1) or RADARADARADARADARADA (SEQ ID NO: 2) It may be.
- sugar chain refers to a compound in which one or more unit sugars (monosaccharides and / or derivatives thereof) are connected. When two or more unit sugars are connected, each unit sugar is bound by dehydration condensation by a glycosidic bond.
- Such sugar chains include, for example, monosaccharides and polysaccharides (glucose, galactose, mannose, fucose, xylose, N-acetylglucosamine, N-acetylgalactosamine, sialic acid, and complexes thereof contained in the living body.
- sugar chains that are decomposed or derived from complex biomolecules such as degraded polysaccharides, glycoproteins, proteoglycans, glycosaminoglycans, glycolipids, etc., but are not limited thereto.
- the sugar chain may be linear or branched.
- sugar chain also includes sugar chain derivatives.
- sugar chain derivatives include sugars having a carboxy group (for example, at the C-1 position). Oxidized aldonic acid (for example, D-gluconic acid in which D-glucose is oxidized), uronic acid in which the terminal C atom is converted into carboxylic acid (D-glucuronic acid in which D-glucose is oxidized) )), Sugars having amino groups or derivatives of amino groups (eg, D-glucosamine, D-galactosamine, etc.), sugars having both amino groups and carboxy groups (eg, N-glycolneuraminic acid, N-acetyl) Muramic acid, etc.), deoxylated sugars (eg 2-deoxy-D-ribose), sulfated sugars containing sulfate groups, phosphorylated sugars containing phosphate groups, etc. But not limited to these.
- the sugar chain bound to the polypeptide is not particularly limited. From the viewpoint of biocompatibility, complex carbohydrates (glycopeptides (or glycoproteins), proteoglycans in vivo It is preferable that the sugar chain exists as a glycolipid or the like. Examples of such sugar chains include N-linked sugar chains and O-linked sugar chains that are sugar chains bound to peptides (or proteins) as glycopeptides (or glycoproteins) in vivo.
- the sugar chain bonded to the polypeptide is, for example, a Disialo sugar chain, an Asialo sugar chain, a Diglucnac (DiGlcNAc) sugar chain, or dimannose (DiMan).
- Sugar chain, glucnac (GlcNAc) sugar chain, maltotriose sugar chain, maltose sugar chain, maltotetraose sugar chain, maltoheptaose sugar chain, ⁇ -cyclodextrin ( ⁇ A -cyclodextrin sugar chain or a ⁇ -cyclodextrin sugar chain can be used.
- the sugar chain used in the present invention may be a disialo sugar chain represented by the following formula (1), an asialo sugar chain represented by the following formula (2), and the following formula: It may be a digluconac sugar chain represented by (3), a dimannose sugar chain represented by the following formula (4), a glucunac sugar chain represented by the following formula (5), or the following formula (6 ) May be a maltotriose sugar chain represented by the following formula (7), may be a maltotetraose sugar chain represented by the following formula (8), and the following formula It may be a maltoheptaose sugar chain represented by (9), a ⁇ -cyclodextrin sugar chain represented by the following formula (10), or a ⁇ -cyclodextrin sugar chain represented by the following formula (11).
- a sugar chain in which one or a plurality of sugars are lost from the non-reducing end of the above-mentioned dicialo sugar chain, asialo sugar chain, diglucnac sugar chain, dimannose sugar chain, or maltoheptaose sugar chain can also be used.
- the amino acid residue to which the sugar chain is bound is not particularly limited.
- the sugar chain can be bound to cysteine (Cys: C) or asparagine (Asn: N), and preferably cysteine (Cys: C). ).
- the method for binding a sugar chain to an amino acid is not particularly limited.
- the sugar chain may be directly bound to an amino acid residue, or the sugar chain may be bound to an amino acid residue via a linker. .
- amino acid residue to which the sugar chain is bonded may be directly bonded to the “amino acid sequence in which polar amino acid residues and nonpolar amino acid residues are alternately arranged”. It may be connected via.
- Such a linker examples include an alkyl chain and a PEG chain having an amino group and a carboxy group at both ends so that an amino acid and a peptide can be bonded.
- a linker is, for example, —NH— (CH 2 ) n —CO— (wherein n is an integer and is not limited as long as the desired linker function is not inhibited, but preferably 1 Represents an integer of ⁇ 15) or —NH— (CH 2 CH 2 O) m —CH 2 CH 2 —CO— (wherein m is an integer and is limited as long as the desired linker function is not inhibited) Although it is not a thing, Preferably it shows the integer of 1-7.) Etc. can be mentioned. More specifically, —NH— (CH 2 ) 11 —CO— (C12 linker), —NH— (CH 2 CH 2 O) 3 —CH 2 CH 2 —CO— (PEG linker), and the like can be given.
- the sugar chain-polypeptide complex used in the present invention can be produced by incorporating a sugar chain addition step into a polypeptide synthesis method known to those skilled in the art.
- a method using an enzyme represented by transglutaminase can also be used.
- transglutaminase a method using an enzyme represented by transglutaminase
- a large amount of sugar chain to be added is required, and purification after the final step becomes complicated.
- problems such as restrictions on the position of the chain and the sugar chain that can be added, it can be used for small-scale synthesis for assays and the like, but it is a practical method for large-scale production. There may not be.
- sugar chain-bound Asn (glycan-added Asn) is used, such as solid phase synthesis, liquid phase synthesis and the like.
- a method for producing a sugar chain-polypeptide complex by applying the peptide synthesis method (Method A) and a polypeptide having an arbitrary amino acid residue as Cys are produced according to a known peptide synthesis method, A method (Method B) in which a sugar chain is added to Cys by chemical synthesis to produce a sugar chain-polypeptide complex is exemplified.
- these A method and B method can be performed in combination of two or more.
- a sugar chain elongation reaction by a transferase with the above method.
- the method A is described in International Publication No. 2004/005330 pamphlet (US2005222382 (A1))
- the method B is described in International Publication No. 2005/010053 pamphlet (US2007060543 (A1)).
- International Publication No. 03/008431 pamphlet US2004181054 (A1)
- 2004/058884 pamphlet (US2006228784 (A1)). )), International Publication No. 2004/058824 pamphlet (US2006009421 (A1)), International Publication No. 2004/070046 pamphlet (US200620039 (A1)), International Publication No. 2007/011055 pamphlet, and the like. are incorporated herein by reference in their entirety.
- the sugar chain-polypeptide complex can be produced, for example, by solid phase synthesis using Asn to which a sugar chain is bound, as schematically shown below.
- the carboxy group of an amino acid whose amino group nitrogen is protected with a fat-soluble protecting group is bonded to a resin (resin).
- a resin resin
- the amino group nitrogen of the amino acid is protected with a fat-soluble protecting group, self-condensation between amino acids is prevented, and the resin and amino acid react to form a bond.
- the fat-soluble protecting group of the obtained reaction product is eliminated to form a free amino group.
- the sugar chain can be bound to any position of the polypeptide.
- the amino group nitrogen is protected with the fat-soluble protecting group in place of the amino acid in which the amino group nitrogen is protected with the fat-soluble protecting group at least twice.
- sugar chains can be bound to any two or more positions of the polypeptide.
- the lipophilic protecting group is removed to form a free amino group, and if the step (7) is performed immediately thereafter, a polypeptide having a glycosylated Asn at the N-terminus is obtained. Can do.
- the resin (resin) that supplies the C-terminal as an amide group may be any resin (resin) that is usually used in solid phase synthesis.
- a Rink-Amide-resin functionalized with an amino group manufactured by Merck
- Rink-Amide-PEGA resin Merck
- NH-SAL-resin Wanganabe Chemical
- Fmoc-NH-SAL-resin-linker manufactured by Watanabe Chemical Co., Ltd.
- Amino-PEGA-resin Merck Co., Ltd.
- Examples of the resin (resin) when the C-terminal is a carboxylic acid include 2-chlorotrityl chloride resin functionalized with chlorine (manufactured by Merck) or an amino-PEGA resin functionalized with an amino group. (Merck), NovaSyn TGT alcohol resin having a hydroxyl group (Merck), Wang resin (Merck), HMPA-PEGA resin (Merck) and the like can be used.
- a linker may be present between the amino-PEGA resin and the amino acid. Examples of such a linker include 4-hydroxymethylphenoxyacetic acid (HMPA), 4- (4-hydroxymethyl-3-methoxyphenoxy). ) -Butyl acetic acid (HMPB).
- H-Cys (Trt) -Trity NovaPEG resin manufactured by Merck or the like in which the C-terminal amino acid is bonded to the resin in advance
- a resin having a hydroxyl group or a resin functionalized with chlorine the bond between the resin and the amino acid whose amino group nitrogen is protected with a fat-soluble protecting group is obtained by esterifying the carboxy group of the amino acid to the resin.
- a resin functionalized with an amino group the carboxy group of the amino acid is bonded to the resin by an amide bond.
- the 2-chlorotrityl chloride resin is preferable because it can prevent racemization of Cys at the terminal when the peptide chain is extended in solid phase synthesis.
- the sugar chain-polypeptide complex can be produced, for example, by liquid phase synthesis using Asn to which a sugar chain is bound, as schematically shown below.
- a carboxy group of an amino acid in which the amino group nitrogen is protected with a fat-soluble protecting group is bonded to an amino acid in which the amino group is free and the carboxy group is protected or amidated.
- the fat-soluble protecting group of the obtained reaction product is eliminated to form a free amino group.
- This free amino group is subjected to an amidation reaction in a solution with a carboxy group of any amino acid whose amino group nitrogen is protected with a fat-soluble protecting group.
- the amino group nitrogen of the amino acid on the N-terminal side is protected with a fat-soluble protecting group, and the carboxy group on the C-terminal side is protected or amidated, so that self-condensation between amino acids is prevented and free Amino group and carboxy group react to form a bond.
- the above fat-soluble protecting group is eliminated to form a free amino group.
- the C-terminal carboxy group to which any number of arbitrary amino acids are linked is protected or amidated, and a free amino group is formed at the N-terminal. Is obtained.
- a peptide having a desired amino acid sequence can be obtained by cleaving the side chain fat-soluble protecting group with an acid.
- Method 3 for producing a sugar chain-polypeptide complex The sugar chain-polypeptide complex can be produced, for example, by a fragment synthesis method using Asn to which a sugar chain is bound, as schematically shown below.
- a polypeptide or sugar chain in which an amino group nitrogen is protected with an acetyl group or a fat-soluble protecting group by the above method (Method A)
- (1)-(6) for producing a sugar chain-polypeptide complex -Synthesize the polypeptide complex on the resin (1)
- a polypeptide or a sugar chain-polypeptide complex is cleaved from a resin under conditions where the side chain protecting group is not deprotected, has a free carboxy at the C terminus, and an acetyl group or a lipophilic protecting group at the N terminus
- a polypeptide or sugar chain-polypeptide complex in which the amino group nitrogen is protected is protected.
- the obtained polypeptide or sugar chain-polypeptide complex in which the amino group nitrogen is protected with an acetyl group or a fat-soluble protecting group is linked to a resin or polypeptide by solid phase synthesis or liquid phase synthesis. Let (4) The above fat-soluble protecting group is eliminated to form a free amino group.
- a peptide in which an arbitrary number of arbitrary amino acids are linked is obtained.
- a peptide having a desired amino acid sequence can be obtained by cleaving the resin with an acid.
- the fat-soluble protective group examples include carbonate-based or amide groups such as 9-fluorenylmethoxycarbonyl (Fmoc) group, t-butyloxycarbonyl (Boc) group, benzyl group, allyl group, allyloxycarbonyl group, and acetyl group.
- Protecting groups of the system can be mentioned.
- a fat-soluble protecting group into an amino acid, for example, when introducing an Fmoc group, it can be introduced by adding 9-fluorenylmethyl-N-succinimidyl carbonate and sodium hydrogen carbonate to carry out the reaction. The reaction is carried out at 0 to 50 ° C., preferably at room temperature, for about 1 to 5 hours.
- amino acids can also be used as the amino acid protected with a fat-soluble protecting group.
- amino acids protected with a fat-soluble protecting group and having a protecting group introduced in the side chain include, for example, Fmoc-Arg (Pbf) -OH, Fmoc-Asn (Trt) -OH, Fmoc-Asp (OtBu ) -OH, Fmoc-Cys (Acm) -OH, Fmoc-Cys (StBu) -OH, Fmoc-Cys (tBu) -OH, Fmoc-Cys (Trt) -OH, Fmoc-Glu (OtBu) -OH, Fmoc -Gln (Trt) -OH, Fmoc-His (Trt) -OH, Fmoc-Lys (Boc) -OH, Fmoc-Ser (tBu) -OH, Fmoc-Thr (tBu) -OH, Fmoc-Trp (Boc) -
- a linker is to be added to the amino acid sequence of the sugar chain-polypeptide conjugate, in the process of solid phase synthesis, instead of the amino acid protected with the above-mentioned fat-soluble protecting group, a fat-soluble protecting group is used.
- the linker can be inserted at a preferred position.
- esterification can be carried out by using a base such as diisopropylethylamine (DIPEA), triethylamine, pyridine, 2,4,6-collidine and the like.
- DIPEA diisopropylethylamine
- known esterification catalysts such as 1-mesitylenesulfonyl-3-nitro-1,2,4-triazole (MSNT), dicyclohexylcarbodiimide (DCC), diisopropylcarbodiimide (DIC), etc.
- MSNT 1-mesitylenesulfonyl-3-nitro-1,2,4-triazole
- DCC dicyclohexylcarbodiimide
- DIC diisopropylcarbodiimide
- the dehydration condensing agent can be used.
- the proportion of amino acid and dehydrating condensing agent used is usually 1 to 10 equivalents, preferably 2 to 5 equivalents in the latter with respect to 1 equivalent in the former.
- the esterification reaction is preferably performed, for example, by placing a resin in a solid phase column, washing the resin with a solvent, and then adding an amino acid solution.
- the cleaning solvent include dimethylformamide (DMF), 2-propanol, dichloromethane, and the like.
- solvents that dissolve amino acids include dimethyl sulfoxide (DMSO), DMF, dichloromethane, and the like.
- the esterification reaction is carried out at 0 to 50 ° C., preferably at room temperature, for about 10 minutes to 30 hours, preferably about 15 minutes to 24 hours.
- the elimination of the lipophilic protecting group can be carried out, for example, by treatment with a base.
- a base include piperidine and morpholine.
- a solvent examples include DMSO, DMF, methanol and the like.
- amidation reaction between the free amino group and the carboxy group of any amino acid whose amino group nitrogen is protected with a fat-soluble protecting group is preferably carried out in the presence of an activator and a solvent.
- activator examples include dicyclohexylcarbodiimide (DCC), 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (WSC / HCl), diphenylphosphoryl azide (DPPA), carbonyldiimidazole (CDI).
- DCC dicyclohexylcarbodiimide
- WSC / HCl 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride
- DPPA diphenylphosphoryl azide
- CDI carbonyldiimidazole
- Diethyl cyanophosphonate (DEPC), benzotriazol-1-yloxy-trispyrrolidinophosphonium (DIPCI), benzotriazol-1-yloxy-trispyrrolidinophosphonium hexafluorophosphate (PyBOP), 1-hydroxybenzotriazole (HOBt), Hydroxysuccinimide (HOSu), dimethylaminopyridine (DMAP), 1-hydroxy-7-azabenzotriazole (HOAt), hydroxyphthalimide (HOP) t), pentafluorophenol (Pfp-OH), 2- (1H-benzotriazol-1-yl) -1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU), 1- [bis (dimethyl Amino) methylene] -5-chloro-1H-benzotriazolium 3-oxide hexafluorophosphate (HCTU), O- (7-azabenzotriazol-1-yl)
- the activator is used in an amount of 1 to 20 equivalents, preferably 1 to 10 equivalents, more preferably 1 to 5 equivalents with respect to any amino acid in which the amino group nitrogen is protected with a fat-soluble protecting group. Is preferred.
- Examples of the solvent include DMSO, DMF, and dichloromethane.
- the reaction is carried out at 0 to 50 ° C., preferably at room temperature, for about 10 minutes to 30 hours, preferably about 15 minutes to 24 hours.
- the elimination of the lipophilic protecting group can be carried out in the same manner as described above.
- Rink-Amide-resin functionalized with amino group (Merck), Rink-Amide-PEGA resin (Merck), NH-SAL-resin (Watanabe Chemical), NH-SAL-resin-linker
- an amino acid at the C-terminal is introduced into Amino-PEGA-resin (Merck) or the like to which is bound, can be introduced using the above-mentioned amidation reaction.
- the acid include trifluoroacetic acid (TFA) and hydrogen fluoride (HF).
- the carboxy group of the sialic acid is protected by a protecting group.
- the protecting group include benzyl group, allyl group, diphenylmethyl group, phenacyl group and the like. The introduction of the protecting group and the removal of the protecting group can be performed by known methods.
- the sugar chain-polypeptide complex can also be produced by a method of first synthesizing a polypeptide and then adding a sugar chain to the synthesized polypeptide.
- a polypeptide containing Cys at the position where a sugar chain is to be added is produced by a solid phase synthesis method, a liquid phase synthesis method, a method of synthesizing with a cell, a method of separating and extracting a naturally occurring one, and the like.
- amino acids may be linked one residue at a time, or polypeptides may be linked.
- Cys that does not add a sugar chain such as Cys at a position where a disulfide bond is to be formed, is protected with, for example, an acetamidomethyl (Acm) group.
- Cys that does not add a sugar chain and is not used to form a disulfide bond is introduced into a sugar chain-polypeptide complex, Cys is protected during the sugar chain addition step and the disulfide bond formation step. Cys can be introduced such that it is protected by a group and then deprotected. Examples of such a protecting group include tert-butyl (tBu) and 4-methoxybenzyl.
- Cys that introduces a sugar chain is first unprotected, and Cys that introduces a different sugar chain is then protected by StBu or the like. It is possible to introduce different sugar chains. Specifically, when a polypeptide is synthesized by solid phase synthesis or the like, Cys to which a first sugar chain is to be introduced is unprotected, and Cys to which a second sugar chain is to be introduced is Fmoc-Cys (StBu)- Cys having a protecting group is obtained using OH or the like. Thereafter, a sugar chain is introduced into unprotected Cys while retaining a protecting group such as StBu.
- the deprotection of the StBu group can be deprotected by reacting with a reducing agent such as tris (2-carboxyethyl) phosphine hydrochloride (TCEP), dithiothreitol (DTT), tributylphosphine.
- TCEP tris (2-carboxyethyl) phosphine hydrochloride
- DTT dithiothreitol
- tributylphosphine tributylphosphine.
- the above reaction is usually carried out at 0 to 80 ° C., preferably 5 to 60 ° C., more preferably 10 to 35 ° C.
- the reaction time is preferably about 30 minutes to 5 hours. After completion of the reaction, it may be appropriately purified by a known method (for example, high performance liquid column chromatography (HPLC)).
- HPLC high performance liquid column chromatography
- introducing a different sugar chain it is preferable to introduce it from a more stable sugar chain with respect to the reducing conditions in the Cys deprotection step and the acidic conditions in the purification step such as HPLC.
- introducing a sialic acid-containing sugar chain it is preferable to introduce a sugar chain that does not have sialic acid or a sugar chain having a small number of sialic acid residues first.
- a linker when a linker is to be added to the amino acid sequence of the sugar chain-polypeptide complex, for example, in the process of solid-phase synthesis, it is protected with a fat-soluble protecting group instead of an amino acid protected with a fat-soluble protecting group.
- the linker By using the prepared linker, the linker can be inserted at a preferred position of the synthesized polypeptide.
- the sugar chain is reacted with the thiol group of unprotected Cys and bonded to the peptide.
- the above reaction is usually performed at 0 to 80 ° C., preferably 10 to 60 ° C., more preferably 15 to 35 ° C. in a phosphate buffer, Tris-HCl buffer, citrate buffer, or a mixed solution thereof. Good to do.
- the reaction time is usually about 10 minutes to 24 hours, preferably about 30 minutes to 5 hours. After completion of the reaction, it may be appropriately purified by a known method (for example, HPLC).
- the haloacetylated sugar chain derivative is, for example, a hydroxyl group bonded to the 1-position carbon of an asparagine-linked sugar chain, represented by —NH— (CH 2 ) a — (CO) —CH 2 X
- X is a halogen atom, a Is an integer and is not limited as long as the desired linker function is not inhibited, but preferably represents an integer of 0 to 4.
- a haloacetylated complex type sugar chain derivative and a Cys-containing polypeptide are reacted in a phosphate buffer at room temperature. After completion of the reaction, a sugar chain-polypeptide complex having Cys to which a sugar chain is bound can be obtained by purification with HPLC.
- the reaction can be carried out in a mixed solution of an organic solvent such as DMSO, DMF, methanol, acetonitrile, and the above buffer solution.
- an organic solvent such as DMSO, DMF, methanol, acetonitrile, and the above buffer solution.
- the ratio of the organic solvent can be added to the buffer solution in the range of 0 to 99% (v / v).
- Peptides containing unprotected Cys with low solubility in a buffer solution are preferable because the solubility in a reaction solution can be improved by adding such an organic solvent.
- the reaction can be carried out in an organic solvent such as DMSO, DMF, methanol, acetonitrile, or a mixed solution thereof.
- a base examples include DIPEA, triethylamine, pyridine, 2,4,6-collidine and the like.
- the reaction can also be performed in a mixed solution in which guanidine hydrochloride or urea is added to the buffer solution. Guanidine hydrochloride and urea can be added to the buffer so that the final concentration is 1M to 8M. Addition of guanidine hydrochloride or urea is preferable because it can improve the solubility of a peptide having low solubility in a buffer solution.
- TCEP 2,2-carboxyethyl) phosphine hydrochloride
- DTT dithiothreitol
- the carboxy group of sialic acid on the sugar chain to be introduced is A sialic acid-containing sugar chain protected with a benzyl (Bn) group, an allyl group, a diphenylmethyl group, a phenacyl group, or the like can be used.
- a step of deprotecting the sialic acid protecting group can be performed after the step of forming a disulfide bond in the sugar chain-polypeptide complex described later.
- the separation / purification step by HPLC or the like in the production step becomes easy. Further, the protection of the carboxy group of sialic acid can also prevent the elimination of acid-labile sialic acid.
- the protection reaction of the carboxy group of sialic acid on the sugar chain can be performed by methods well known to those skilled in the art.
- the carboxy protecting group of sialic acid can be deprotected by hydrolysis under basic conditions.
- the above reaction is usually carried out at 0 to 50 ° C., preferably 0 to 40 ° C., more preferably 0 to 30 ° C.
- the reaction time is preferably about 5 minutes to 5 hours.
- the reaction solution is neutralized with a weak acid such as phosphoric acid or acetic acid, and then appropriately purified by a known method (for example, HPLC). *
- the amino acid to be reacted with the haloacetylated complex sugar chain derivative in Method B is not particularly limited as long as it is an amino acid containing a thiol group.
- D-form cysteine (D-Cys) D-form cysteine
- homocysteine homocysteine
- norcysteine norcysteine
- Penicillamine Penicillamine and the like can be used in the same manner as Cys.
- the type of sugar chain bound to the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention is not particularly limited, but the sugar present in the sugar chain bound to the sugar chain-polypeptide complex.
- the total number of residues is preferably 5 or more.
- one or more sugar chains of 5 sugars or more may be added, and by adding multiple sugar chains of 5 sugars or less, they are present in the sugar chain added to one sugar chain-polypeptide complex.
- the number of sugar residues may be 5 or more.
- the types of sugar chains bound to one peptide may be the same, or different types of sugar chains may be combined and bound, but they may be the same. preferable.
- the total number of sugar residues present in the sugar chain bound to the sugar chain-polypeptide complex is 5
- One maltotriose sugar chain may be bonded to each other.
- the total number of sugar residues present in the sugar chain bonded to the sugar chain-polypeptide complex is 6, three maltose sugar chains may be bound, and maltotriose sugar chains Two may be combined.
- the total number of sugar residues present in the sugar chain bound to the sugar chain-polypeptide complex is 7, two maltose sugar chains and one maltotriose sugar chain are bound.
- one diglucnac sugar chain having seven sugar residues may be bound.
- the total number of sugar residues present in the sugar chain bonded to the sugar chain-polypeptide complex is 8 or more, various combinations of sugar chains may be bonded.
- the number of sugar chains bound to the sugar chain-polypeptide complex contained in the hemostatic pharmaceutical composition according to the present invention is such that the sugar chain-polypeptide complex self-assembles in an aqueous solution having a pH near neutral.
- the characteristic that the ⁇ sheet structure can be formed is not lost.
- it may be 1, 2, 3, 4, 5, or 6, and preferably 1, 2, or 3.
- the position of the amino acid residue to which the sugar chain binds is determined in an aqueous solution where the sugar chain-polypeptide complex has a pH near neutral.
- a feature is not limited as long as the characteristic that a ⁇ -sheet structure can be formed is lost.
- the position of the amino acid residue to which the sugar chain binds may be on the N-terminal side and / or C-terminal side of the polypeptide, and may be a position other than the N-terminal side and the C-terminal side.
- all amino acids up to the x-th from the amino acid residue located at the N-terminus of the polypeptide and all amino acids up to the y-th from the amino acid residue located at the C-terminus are integers, x ⁇ 0, y ⁇ 0, and x + y is the sum of the number of sugar chains bound to the polypeptide.
- the one sugar chain is an amino acid residue located at the N-terminus of the polypeptide or the C-terminus. It may be combined with an amino acid residue located at.
- the two sugar chains are bound to an amino acid residue selected from the group consisting of the following (1) to (3): You may do it.
- (1) First and second amino acid residues counted from the amino acid residue located at the N-terminus of the polypeptide (2) First and second amino acids counted from the amino acid residue located at the C-terminus of the polypeptide Residue (3) an amino acid residue located at the N-terminus of the polypeptide and an amino acid residue located at the C-terminus of the polypeptide
- the three sugar chains are any amino acid residues selected from the group consisting of the following (1) to (4): It may be bonded to a group.
- (1) First, second and third amino acid residues counted from the amino acid residue located at the N-terminus of the polypeptide (2) First counted from the amino acid residue located at the C-terminus of the polypeptide
- the second and third amino acid residues (3) the first and second amino acid residues counted from the N-terminal amino acid residue of the polypeptide, and the amino acid located at the C-terminal of the polypeptide Residue (4) amino acid residue located at the N-terminus of the polypeptide and amino acid residues located at the first and second positions from the C-terminus of the polypeptide
- a sugar chain bonded to a polypeptide is a “branched sugar chain”, for example, a single sugar chain such as a dicialo sugar chain, an asialog glycan, or a diglucnac glycan. It is not limited to the case where there is a branch in the state. For example, a state in which a sugar chain has a branch as a whole peptide by adding a plurality of linear sugar chains to one polypeptide. In some cases. For example, a case where two or more linear sugar chains such as maltose sugar chain and maltotriose sugar chain are bonded to one peptide is also included in the “branched sugar chain” in the present invention. .
- the evaluation method for the strength and properties of the hydrogel is not particularly limited, but can be evaluated by, for example, a steel ball loading test or kinematic viscosity measurement.
- the strength of the hydrogel is determined by, for example, loading a steel ball of a predetermined weight on the surface of the hydrogel formed in the Durham tube and observing whether the steel ball stays on the surface of the hydrogel or sinks. Can be evaluated.
- the transparency in the hydrogel and the presence or absence of insoluble matter / precipitation can be visually confirmed.
- a change in the strength of the hydrogel with time can be measured by measuring the kinematic viscosity of the target hydrogel using a galvanometer.
- first, second, etc. may be used to represent various elements, but these elements should not be limited by those terms. These terms are only used to distinguish one element from another, for example, the first element is referred to as the second element, and similarly, the second element is the first element. Can be made without departing from the scope of the present invention.
- DiGlcNAc-BrAc indicates a bromoacetylated diglucnac sugar chain.
- C (DiGlcNAc)-(RADA) 4 indicates that a cysteine residue to which a diglucnac sugar chain is attached is bonded to the N-terminal of a polypeptide having the amino acid sequence of RADARADARADARADA. .
- TFA trifluoroacetic acid
- Example 1 A self-assembling peptide such as circular dichroism (CD) measurement and analysis (RADA) 4 forms a ⁇ -sheet structure by intermolecular interaction, and the structure is in the presence of ions in several layers. It is known that a hydrogel is formed by overlapping. CD measurement is known as an effective method for confirming this ⁇ sheet structure. Generally, the CD spectrum in the case of having a ⁇ sheet structure shows a positive maximum near 197 nm and a negative maximum near 216 nm. Thus, by performing CD measurement, it was confirmed that the composition of the present invention forms a ⁇ sheet structure in a wide range of pH.
- CD circular dichroism
- FIG. 1 shows the measurement results of the composition containing C (DiGlcNAc)-(RADA) 4, and FIG. 2 shows the measurement results of the composition containing (RADA) 4.
- both C (DiGlcNAc)-(RADA) 4 and (RADA) 4 showed a positive maximum near 197 nm and a negative maximum near 216 nm. It was confirmed that a structure was formed. On the other hand, in the phosphate buffer solution, only C (DiGlcNAc)-(RADA) 4 was confirmed to form a ⁇ sheet structure.
- Example 2 Confirmation of fibrous structure formation C (DiGlcNAc)-(RADA) 4 synthesized in Synthesis Example 1 and control (RADA) 4 were each dissolved in ultrapure water to prepare a 1 wt% aqueous solution. . Each prepared aqueous solution was diluted with ultrapure water, 1.8% saline or phosphate buffer solution (pH 7.4) so as to be 0.5% by weight. 1 ⁇ L of the obtained diluted solution was dropped onto each cleaved mica substrate (trade name: MICA Grade V-4, manufactured by SPI suppliers). Thereafter, excess compounds on the mica substrate were washed away with 100 ⁇ L of distilled water. The substrate was then air dried at room temperature (25 ° C.).
- the dried peptide on the mica substrate was observed using an atomic force microscope (trade name: nanoscale hybrid microscope, VN-8000, manufactured by Keyence Corporation). The result is shown in FIG.
- FIG. 4 shows the storage elastic modulus of C (DiGlcNAc)-(RADA) 4 and (RADA) 4 in an aqueous solution state.
- C (DiGlcNAc)-(RADA) 4 showed a low value.
- C (DiGlcNAc)-(RADA) 4 and (RADA) 4 showed the same value.
- C (DiGlcNAc)-(RADA) 4 has a feature that it has a low storage elastic modulus in an aqueous solution state and is easy to handle, while it immediately gels when a salt is added. It was.
- C (DiGlcNAc)-(RADA) 4 is highly water-soluble, a hydrogel having a high storage elastic modulus can be provided without forming an aggregate even when the peptide concentration is increased.
- Example 4 Evaluation of hemostatic action In order to confirm whether the hydrogel of the present invention has a hemostatic action in a living body, an evaluation test was conducted in a bleeding model by rat liver puncture.
- test substance C (DiGlcNAc)-(RADA) 4, (RADA) 4
- medium purified water, PBS
- puncture site was administered locally by instillation.
- C (DiGlcNAc)-(RADA) 4 was dissolved in PBS (pH 7.4, phosphate buffered saline) to 0.5% by weight and used for evaluation.
- (RADA) 4 was dissolved in purified water to 0.5% by weight and used for evaluation.
- the evaluation results of the hemostatic effect are shown in Table 2.
- the score distribution for the hemostatic effect after 3 minutes is shown in FIG. Individuals with persistent bleeding until 3 minutes later were 12 cases (75%) in 16 cases in the PBS application group and 13 cases (87%) in 15 cases in the purified water application group.
- the C (DiGlcNAc)-(RADA) 4 application group 4 (27%) of the 15 cases showed persistent bleeding until 3 minutes later, and in the (RADA) 4 application group 3 minutes later. 3 out of 15 individuals (20%) were found to have sustained bleeding until.
- Other individuals formed a gel-like solid or film within 3 minutes after puncturing, and blood flow from the bleeding site stopped or the flow rate decreased.
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Abstract
Description
すなわち、本発明に係る糖鎖-ポリペプチド複合体は、他のペプチド性のゲルと比較して、操作性に非常に優れている。また、本発明に係る止血用医薬組成物は、使用できるpH域が広いため、使用時にシリンジやチューブが詰まってしまうなどの問題が生じにくい。
式(1)ジシアロ糖鎖
式(2)アシアロ糖鎖
式(3)ジグルクナック糖鎖
式(4)ジマンノース糖鎖
式(5)グルクナック糖鎖
式(6)マルトトリオース糖鎖
式(7)マルトース糖鎖
式(8)マルトテトラオース糖鎖
式(9)マルトヘプタオース糖鎖
式(10)β-シクロデキストリン糖鎖
式(11)γ-シクロデキストリン糖鎖
糖鎖-ポリペプチド複合体は、例えば、以下に概略を示すように、糖鎖が結合したAsnを用いた固相合成によって製造することができる。
(1)脂溶性保護基でアミノ基窒素が保護されたアミノ酸のカルボキシ基を樹脂(レジン)へ結合させる。この場合、アミノ酸のアミノ基窒素を脂溶性保護基で保護しているので、アミノ酸同士の自己縮合は防止され、レジンとアミノ酸とが反応して結合が起こる。
(2)得られた反応物の脂溶性保護基を脱離して遊離アミノ基を形成させる。
(3)この遊離アミノ基と、脂溶性保護基でアミノ基窒素が保護された任意のアミノ酸のカルボキシ基とを、アミド化反応させる。
(4)上記脂溶性保護基を脱離して遊離アミノ基を形成させる。
(5)上記(3)および(4)の工程を1回以上繰り返すことにより、任意の数の任意のアミノ酸が連結した、末端にレジンを結合し、他端に遊離アミノ基を有するペプチドが得られる。
(6)上記(5)で合成したペプチドの遊離アミノ基をアセチル基で保護する場合、無水酢酸、酢酸等を用いてアセチル化することも好ましい。
(7)最後に、酸でレジンを切断することにより、所望のアミノ酸配列を有するペプチドを得ることができる。
樹脂と脂溶性保護基でアミノ基窒素が保護されたアミノ酸との結合は、例えば、水酸基を有する樹脂や塩素で官能化された樹脂を使用するには、アミノ酸のカルボキシ基を樹脂へエステル結合させる。また、アミノ基で官能化された樹脂を使用する場合には、アミノ酸のカルボキシ基を樹脂にアミド結合により結合させる。
なお、2-クロロトリチルクロリド樹脂は、固相合成においてペプチド鎖を伸長する際、末端にあるCysのラセミ化を防止することができる点において、好ましい。
糖鎖-ポリペプチド複合体は、例えば、以下に概略を示すように、糖鎖が結合したAsnを用いた液相合成によって製造することができる。
(1)脂溶性保護基でアミノ基窒素が保護されたアミノ酸のカルボキシ基をアミノ基が遊離でカルボキシ基が保護またはアミド化されたアミノ酸へ結合させる。
(2)得られた反応物の脂溶性保護基を脱離して遊離アミノ基を形成させる。
(3)この遊離アミノ基と、脂溶性保護基でアミノ基窒素が保護された任意のアミノ酸のカルボキシ基とを、溶液中でアミド化反応させる。この場合、N末端側のアミノ酸のアミノ基窒素を脂溶性保護基で保護しており、C末端側のカルボキシ基は保護またはアミド化されているので、アミノ酸同士の自己縮合は防止され、遊離のアミノ基とカルボキシ基とが反応して結合が起こる。
(4)上記脂溶性保護基を脱離して遊離アミノ基を形成させる。
(5)上記(3)および(4)の工程を1回以上繰り返すことにより、任意の数の任意のアミノ酸が連結した、C末端のカルボキシ基が保護またはアミド化され、N末端に遊離アミノ基を有するペプチドが得られる。
(6)上記(5)で合成したペプチドの遊離アミノ基をアセチル基で保護する場合、無水酢酸、酢酸等を用いてアセチル化することも好ましい。
(7)最後に、酸で側鎖の脂溶性保護基を切断することにより、所望のアミノ酸配列を有するペプチドを得ることができる。
糖鎖-ポリペプチド複合体は、例えば、以下に概略を示すように、糖鎖が結合したAsnを用いたフラグメント合成法によって製造することができる。
(1)上記の糖鎖-ポリペプチド複合体を製造する方法(A法)の(1)-(6)によって、アセチル基または脂溶性保護基でアミノ基窒素が保護されたポリペプチドまたは糖鎖-ポリペプチド複合体を樹脂上に合成する。
(2)側鎖保護基が脱保護されない条件で、レジンからポリペプチドまたは糖鎖-ポリペプチド複合体を切断し、C末端に遊離のカルボキシを有し、N末端がアセチル基または脂溶性保護基でアミノ基窒素が保護されたポリペプチドまたは糖鎖-ポリペプチド複合体を得る。
(3)得られたアセチル基または脂溶性保護基でアミノ基窒素が保護されたポリペプチドまたは糖鎖-ポリペプチド複合体を、固相合成法または液相合成法により、樹脂またはポリペプチドと連結させる。
(4)上記脂溶性保護基を脱離して遊離アミノ基を形成させる。
(5)上記(3)および(4)の工程を1回以上繰り返すことにより、任意の数の任意のアミノ酸が連結したペプチドが得られる。
(6)最後に、酸でレジンを切断することにより、所望のアミノ酸配列を有するペプチドを得ることができる。
糖鎖-ポリペプチド複合体は、まずポリペプチドを合成し、後で合成したポリペプチドへ糖鎖を付加する方法によっても製造することができる。具体的には、糖鎖を付加したい位置にCysを含むポリペプチドを、固相合成法、液相合成法、細胞により合成する方法、天然に存在するものを分離抽出する方法等により製造する。ポリペプチドを固相合成法または液相合成法により合成する場合、アミノ酸は一残基ずつ連結させても良く、ポリペプチドを連結させてもよい。ここで、ジスルフィド結合を形成する予定の位置にあるCys等、糖鎖を付加しないCysに対しては、例えばアセトアミドメチル(Acm)基で保護しておく。また、糖鎖を付加せず、かつ、ジスルフィド結合の形成にも使用しないCysを糖鎖-ポリペプチド複合体に導入する場合には、糖鎖付加工程およびジスルフィド結合形成工程の間、Cysを保護基により保護しておき、その後脱保護するようにしてCysを導入することができる。このような保護基としては、例えば、tert-ブチル(tBu)や4-メトキシベンジルを挙げることができる。
(1)ポリペプチドのN末端に位置するアミノ酸残基から数えて1番目および2番目のアミノ酸残基
(2)ポリペプチドのC末端に位置するアミノ酸残基から数えて1番目および2番目のアミノ酸残基
(3)ポリペプチドのN末端に位置するアミノ酸残基、および、前記ポリペプチドのC末端に位置するアミノ酸残基
(1)ポリペプチドのN末端に位置するアミノ酸残基から数えて1番目、2番目、および、3番目のアミノ酸残基
(2)ポリペプチドのC末端に位置するアミノ酸残基から数えて1番目、2番目、および、3番目のアミノ酸残基
(3)ポリペプチドのN末端に位置するアミノ酸残基から数えて1番目および2番目のアミノ酸残基、ならびに、ポリペプチドのC末端に位置するアミノ酸残基
(4)ポリペプチドのN末端に位置するアミノ酸残基、ならびに、ポリペプチドのC末端から数えて1番目および2番目に位置するアミノ酸残基
(合成例1-1)DiGlcNAc-BrAcの合成
WO2005/010053に記載の方法と同様の手法で合成を行い、下記式(12)であらわされるDiGlcNAc-BrAcを得た。
式(12)
固相合成用カラムにRink amide PEGA樹脂(100μmol)を取り、DMFおよびジクロロメタンで洗浄後、Fmoc-Ala-OH(124.5mg、400μmol)と1-ビスジメチルアミノメチレン-5-クロロ-1H-ベンゾトリアゾリウム 3-オキシドヘキサフルオロホスフェイト(HCTU)(157.2mg、380μmol)とジイソプロピルエチルアミン(DIPEA)(104.5μL、600μmol)のDMF(2.5mL)溶液を加え、15分間振盪した。ジクロロメタンおよびDMFで洗浄後、Fmoc保護基を、DMF中の20%のピペリジンで処理することにより除去した。DMFで洗浄後、Prelude(商標)ペプチド合成機を用いて、Fmoc法によるペプチド固相合成法にて保護された下記式(13)で表わされる、樹脂に結合した状態にあるポリペプチド(配列番号3)を合成した。縮合反応は、縮合剤としてHCTUを使用してDMF中で行った。
式(13)
式(14)
合成例1-2で合成したポリペプチド(配列番号4)(25.3mg、13.9μmol)と、合成例1-1で合成したDiGlcNAc-BrAc(30.0mg、20.9μmol、ペプチド1に対して1.5等量)を33μMのTCEPおよび8Mグアニジン塩酸塩を含む0.2Mリン酸緩衝液(pH7.3、4.7mL)に溶解し、室温で3時間反応させた。
式(15)
(RADA)4などの自己組織化ペプチドは、分子間相互作用によりβシート構造を形成し、さらにその構造がイオン存在下、何重にも重なることで、ヒドロゲルが形成されることが知られている。このβシート構造を確認する有効な手法として、CD測定が知られている。一般的に、βシート構造を有する場合のCDスペクトルは、197nm付近の正の極大と216nm付近の負の極大を示す。そこで、CD測定を行うことにより、本発明の組成物が広範なpHにおいてβシート構造を形成することを確認した。
[θ]=(θobs/10・l・c)/r
ここでθobsはミリ度で測定した楕円形性、lはセル長さ(cm)、cは濃度(M)、そしてrはアミノ酸の残基数を表す。
図1にC(DiGlcNAc)-(RADA)4を含む組成物の測定結果を、図2に(RADA)4を含む組成物の測定結果をそれぞれ示す。
水溶液中及び生理食塩水溶液中においては、C(DiGlcNAc)-(RADA)4及び(RADA)4ともに、197nm付近の正の極大と216nm付近の負の極大を示したことから、両ペプチドはβシート構造を形成していることが確認された。一方、リン酸緩衝溶液中においては、C(DiGlcNAc)-(RADA)4のみβシート構造の形成が確認された。
合成例1で合成したC(DiGlcNAc)-(RADA)4及び対照となる(RADA)4をそれぞれ超純水に溶解し、1重量%水溶液を調製した。調製したそれぞれの水溶液を0.5重量%になるように、超純水、1.8%食塩水又はリン酸緩衝溶液(pH7.4)を用いてそれぞれ希釈した。得られた希釈液1μLを、劈開させたマイカ基板(商品名:MICA Grade V-4、SPI supplies社製)上にそれぞれ滴下した。その後、前記マイカ基板上の余分な化合物を、100μLの蒸留水で洗い流した。ついで、室温(25℃)で基板を空気乾燥させた。
動粘度の測定には、0.3mmのギャップ高を有する直径40mmのステンレス鋼平行プレートを備えた検流計(Discovery HR-2、TAインスツルメント社製)を用いた。C(DiGlcNAc)-(RADA)4を超純水に溶解し、0.5-5重量%のペプチド水溶液を調製した。また、対照となる(RADA)4も超純水に溶解し、0.5―1重量%のペプチド水溶液を調製した。その後、これらの水溶液を25℃に設定した検流計に移し、Preshearを30秒間、100S-1の回転速度で行った後、各種物性データを時間経過に従ってモニターした(周波数=1Hz、歪み=10%)。この測定結果を図4に示す。
本発明のヒドロゲルが生体において止血作用を有するかを確認するため、ラットの肝臓穿刺による出血モデルでの評価試験を行った。
Claims (9)
- 糖鎖-ポリペプチド複合体を含む止血用医薬組成物であって、
前記糖鎖-ポリペプチド複合体における前記ポリペプチドが、極性アミノ酸残基と非極性アミノ酸残基が交互に配置されたアミノ酸配列を含むポリペプチドであり、
前記ポリペプチドに1または複数の糖鎖が結合していることを特徴とする、
止血用医薬組成物。 - 請求項1に記載の止血用医薬組成物であって、
前記糖鎖-ポリペプチド複合体における前記ポリペプチドが、極性アミノ酸残基と非極性アミノ酸残基が交互に配置された、8~34個のアミノ酸残基からなるアミノ酸配列を含むポリペプチドであることを特徴とする、
止血用医薬組成物。 - 請求項1または2に記載の止血用医薬組成物であって、
前記糖鎖-ポリペプチド複合体が、pHが中性付近の水溶液中において自己集合することにより、βシート構造を含むヒドロゲルを形成しうるものであることを特徴とする、
止血用医薬組成物。 - 請求項1に記載の止血用医薬組成物であって、
前記止血用医薬組成物に含まれる前記糖鎖-ポリペプチド複合体の濃度が0.1重量%~20重量%であることを特徴とする、
止血用医薬組成物。 - 請求項1に記載の止血用医薬組成物であって、
前記ポリペプチドに結合している1または複数の糖鎖に存在する糖残基の数の合計が5以上であることを特徴とする、
止血用医薬組成物。 - 請求項5に記載の止血用医薬組成物であって、
前記ポリペプチドに結合している糖鎖の数が、1、2、または、3本であることを特徴とする、
止血用医薬組成物。 - 請求項5に記載の止血用医薬組成物であって、
前記ポリペプチドのN末端に位置するアミノ酸残基から数えて、x番目までの全てのアミノ酸、および、C末端に位置するアミノ酸残基から数えて、y番目までの全てのアミノ酸(ここで、xおよびyは整数であり、x≧0であり、y≧0であり、x+yは、ポリペプチドに結合している糖鎖の数の合計である)に糖鎖が結合していることを特徴とする、
止血用医薬組成物。 - 請求項1に記載の止血用医薬組成物であって、
前記糖鎖が、分岐を有する糖鎖であることを特徴とする、
止血用医薬組成物。 - 請求項1~8のいずれか1項に記載の止血用医薬組成物であって、
前記医薬組成物が、ヒドロゲルの状態にあることを特徴とする、
止血用医薬組成物。
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JP2007217376A (ja) * | 2006-02-17 | 2007-08-30 | Nagoya Institute Of Technology | 自己組織化ペプチド組成物 |
JP2008539257A (ja) * | 2005-04-25 | 2008-11-13 | マサチューセッツ・インスティテュート・オブ・テクノロジー | 止血および他の生理学的活性を促進するための組成物および方法 |
WO2010041636A1 (ja) * | 2008-10-06 | 2010-04-15 | 株式会社スリー・ディー・マトリックス | 組織閉塞剤 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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JP2007217376A (ja) * | 2006-02-17 | 2007-08-30 | Nagoya Institute Of Technology | 自己組織化ペプチド組成物 |
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---|
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