JP6693983B2 - 固定された生物学的実体 - Google Patents
固定された生物学的実体 Download PDFInfo
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- JP6693983B2 JP6693983B2 JP2018034545A JP2018034545A JP6693983B2 JP 6693983 B2 JP6693983 B2 JP 6693983B2 JP 2018034545 A JP2018034545 A JP 2018034545A JP 2018034545 A JP2018034545 A JP 2018034545A JP 6693983 B2 JP6693983 B2 JP 6693983B2
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- Prior art keywords
- heparin
- linker
- anticoagulant
- polymer
- functionalized
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- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 125000005262 alkoxyamine group Chemical group 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002429 anti-coagulating effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- LBSPZZSGTIBOFG-UHFFFAOYSA-N bis[2-(4,5-dihydro-1h-imidazol-2-yl)propan-2-yl]diazene;dihydrochloride Chemical compound Cl.Cl.N=1CCNC=1C(C)(C)N=NC(C)(C)C1=NCCN1 LBSPZZSGTIBOFG-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 229940097265 cysteamine hydrochloride Drugs 0.000 description 1
- 229960004969 dalteparin Drugs 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000000412 dendrimer Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- GTNGBHWYALUTBM-UHFFFAOYSA-N diphenylmethanone;hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(=O)C1=CC=CC=C1 GTNGBHWYALUTBM-UHFFFAOYSA-N 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- VHJLVAABSRFDPM-QWWZWVQMSA-N dithiothreitol Chemical compound SC[C@@H](O)[C@H](O)CS VHJLVAABSRFDPM-QWWZWVQMSA-N 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- KANJSNBRCNMZMV-ABRZTLGGSA-N fondaparinux Chemical compound O[C@@H]1[C@@H](NS(O)(=O)=O)[C@@H](OC)O[C@H](COS(O)(=O)=O)[C@H]1O[C@H]1[C@H](OS(O)(=O)=O)[C@@H](O)[C@H](O[C@@H]2[C@@H]([C@@H](OS(O)(=O)=O)[C@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O[C@@H]4[C@@H]([C@@H](O)[C@H](O)[C@@H](COS(O)(=O)=O)O4)NS(O)(=O)=O)[C@H](O3)C(O)=O)O)[C@@H](COS(O)(=O)=O)O2)NS(O)(=O)=O)[C@H](C(O)=O)O1 KANJSNBRCNMZMV-ABRZTLGGSA-N 0.000 description 1
- 229960001318 fondaparinux Drugs 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229960002442 glucosamine Drugs 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 150000002373 hemiacetals Chemical group 0.000 description 1
- ZFGMDIBRIDKWMY-PASTXAENSA-N heparin Chemical compound CC(O)=N[C@@H]1[C@@H](O)[C@H](O)[C@@H](COS(O)(=O)=O)O[C@@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](O[C@H]2[C@@H]([C@@H](OS(O)(=O)=O)[C@@H](O[C@@H]3[C@@H](OC(O)[C@H](OS(O)(=O)=O)[C@H]3O)C(O)=O)O[C@@H]2O)CS(O)(=O)=O)[C@H](O)[C@H]1O ZFGMDIBRIDKWMY-PASTXAENSA-N 0.000 description 1
- 239000002628 heparin derivative Substances 0.000 description 1
- 239000002634 heparin fragment Substances 0.000 description 1
- 229940019334 heparin group antithrombotic drug Drugs 0.000 description 1
- 239000002554 heparinoid Substances 0.000 description 1
- 229940025770 heparinoids Drugs 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000010324 immunological assay Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003055 low molecular weight heparin Substances 0.000 description 1
- 229940127215 low-molecular weight heparin Drugs 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 125000001483 monosaccharide substituent group Chemical group 0.000 description 1
- 239000000472 muscarinic agonist Substances 0.000 description 1
- 230000000926 neurological effect Effects 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- CEFBXYRCGUITCZ-UHFFFAOYSA-N o-prop-2-ynylhydroxylamine;hydrochloride Chemical compound Cl.NOCC#C CEFBXYRCGUITCZ-UHFFFAOYSA-N 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-N peroxydisulfuric acid Chemical compound OS(=O)(=O)OOS(O)(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-N 0.000 description 1
- FHHJDRFHHWUPDG-UHFFFAOYSA-N peroxysulfuric acid Chemical compound OOS(O)(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-N 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- REJGOFYVRVIODZ-UHFFFAOYSA-N phosphanium;chloride Chemical compound P.Cl REJGOFYVRVIODZ-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001742 protein purification Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000003362 replicative effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 239000010409 thin film Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/61—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule the organic macromolecular compound being a polysaccharide or a derivative thereof
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- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/58—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. poly[meth]acrylate, polyacrylamide, polystyrene, polyvinylpyrrolidone, polyvinylalcohol or polystyrene sulfonic acid resin
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- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/59—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
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Description
(a)医療装置などの固体対象を処理して、チオール基を有するように官能化されたカチオン性ポリマー外側被膜層を含む表面を提示させ;
(b)チオール基を有するように官能化されたカチオン性ポリマー外側被膜層を、アルケン又はアルキン基を有するように官能化された抗凝血実体と反応させる
を含み、それにより上記抗凝血実体を、チオエーテルを含むリンカーを介してカチオン性ポリマーに結合する。
(a)医療装置などの固体対象を処理して、アルケン又はアルキン基を有するように官能化されたカチオン性ポリマー外側被膜層を提示させ;
(b)アルキン基を有するように官能化されたカチオン性ポリマー外側被膜層を、チオール基を有するように官能化された抗凝血実体と反応させる
を含み、それにより上記抗凝血実体を、チオエーテルを含むリンカーを介して上記カチオン性ポリマーに結合する。
(a)医療装置などの固体対象を処理して、カチオン性ポリマー表面層を提示させ;
(b)当該カチオン性ポリマー表面層と、チオエーテルを含むリンカーを介して結合される多重の負荷電抗凝血実体、例えばヘパリン部分を有する官能化カチオン性ポリマーとを結合させる
を含み、ここで当該カチオン性ポリマーが、多重の負荷電抗凝血実体を有し、そして当該官能化カチオン性ポリマーが全体として負荷電を有する。
(i)アニオン性ポリマー(例えばアニオン性多糖)の溶液を適用して、当該アニオンポリマーの吸着された層を取得し、そして
(ii)さらにそれを官能化カチオン性ポリマー、例えばポリアミンで処理して、官能化カチオン性ポリマーの吸着された外側被膜層を提供し、ここで上記外側被膜層は、チオール基又はアルケン若しくはアルキン基を有するように官能化されている
により組み立てられてもよい。
(a)固体対象、例えば医療装置を処理して、アニオン性ポリマー表面層を提示させ;
(b)当該アニオン性ポリマー表面層と、チオエーテルを含むリンカーを介して結合している多重の負に荷電した抗凝血実体、例えばヘパリンを有する官能化カチオン性ポリマーとを結合させる
を含み、ここで当該官能化カチオン性ポリマーは、多重の負荷電の抗凝血実体を有し、そして全体として正荷電を有する。
(i)カチオン性ポリマー(場合により架橋剤を伴って)を適用して、カチオン性ポリマーの吸着された層を提供し、そして
(ii)次にそれを、アニオン性ポリマー(例えばアニオン性多糖)の溶液で処理して、アニオン性ポリマーの吸着された層を取得する
により組み立てられてもよい。
で表されるアルコキシアミンを、抗凝血実体上のアルデヒド又はヘミアセタール基と、それ自体既知の慣用技術を用いて反応させることにより製造されてもよい。このタイプの反応は、以下の実施例3bに示されており;この反応は、オキシ-イミン官能基の形成を介して反応が進んで、以下の式:
で表される化合物を与える。
Xは、炭化水素リンカー、例えば(CH2)nであり、ここでnは、1〜8、例えば1〜4であるか、又は
Xは、1又は複数(例えば1又は2)のメチレン基がOにより置換される上で記載された炭化水素リンカーであるか;或いは
Xは、1〜100(例えば、1〜50、例えば1〜10)のエチレングリコールユニットを含むPEG鎖を含む}
で表される化合物と反応させて、以下の式:
Xは上に定義される通りであり、かつR’-CH2−は、抗凝血実体の残基である}
で表される生成物を与えることにより形成されてもよい。
で表される多数の第一級アミン基を有するポリアミンポリマーは、以下の式:
で表される化合物と反応させて、以下の式:
で表されるマレイミド官能化ポリアミンを生成してもよい。この反応は、以下の実施例2aにより詳細に示されている。
で表される活性化アルキン含有基と反応させて、以下の式:
で表されるアルキン官能化ポリマーを与えてもよい。この反応は、以下の実施例2bにおいてより詳細に示されている。
で表される多数の第一級アミン基を有するポリアミンポリマーは、活性化チオール含有化合物、例えば以下の式:
で表される化合物と反応されて、以下の式:
で表される誘導体化ポリマーを与えうる。この反応は、下記の実施例2cにより詳細に示されている。
表面上の抗凝血実体の置換の程度が制御できる;
抗凝血実体、例えばヘパリンを、両方の末端(1の点)結合、及び複数の点での結合することが達成できるが、末端(特に還元末端)結合が好ましい;
抗凝血実体と表面との間のリンカーの長さを制御できる;
全長のヘパリンが使用でき、ヘパリン切断、及び従来技術におけるヘパリンの硝酸分解により生じる切断産物の一部の浪費を避けることができる;
ヘパリンを切断する場合、幾つかのフラグメントにおいて、アンチトロンビン結合配列を破壊でき、その結果スペーサーを介して結合された全長ヘパリン又はヘパリンを使用することは、結合されたヘパリンの生態利用能を改善することができる;
表面における抗凝血実体の均一な分布を得ることができる;
製品の材料にかかわらず、装置に固有の性質、例えば低い血栓形成性をマスクする均一の被膜を得ることができる;
比較的滑らかな被膜を得ることができる;
被膜の生体適合性が向上することができる;
本発明の被膜が、全身ヘパリン処理に対する必要性を低下し、そして接触活性化の可能性を低下することができる;
抗凝血実体の生体適合性を、例えば異なるリンカー(長さ、タイプ)を用いることにより制御することができる;
ヘパリンを浸出させず、そうして長期間の寿命を有する非血栓形成性表面を得ることができる;
生物分子に対する改善した結合能力を有する分析又は分離装置を得ることができる;そして
延長されたヘパリン活性寿命を有する分析又は分離装置を得ることができる。
官能化されたアミノ化ポリマー外側層を有する、アミノ化ポリマーと、硫酸化多糖の層を含む表面は、官能化ヘパリンに結合されて、それによりチオエーテルを形成する。
PVCチューブ(内径3mm)の内腔表面を、イソプロパノール及び酸化剤で洗浄した。これを次に、正に荷電したポリアミン(Polymin)と負に荷電した硫酸化多糖(デキストラン硫酸)からなる4の二重層で下地を作り、そし硫酸化多糖で終えた。
結合されたヘパリンの安置トロンビン結合活性:8.0pmol/cm2
血液ループにより試験されるように非血栓形成性である。実施例1.4を参照のこと。
PVCチューブ(内径3mm)の内腔表面を、イソプロパノール及び酸化剤で洗浄した。これを、正に荷電したポリアミン(Polymin)と負に荷電した硫酸化多糖(デキストラン硫酸)の4の二重層で下地を作り、硫酸化多糖で終えた。
結合されたヘパリンのアンチトロンビン結合活性:1.0pmol/cm2
血液ループにより試験された非トロンビン形成性:実施例1.4を参照のこと。
実施例1.1〜1.3から得た内腔が被膜されたPVCチューブについて血液ループ評価を行い、非血栓形成性表面の保存されたヘパリン生物活性を示した。第一に、被膜チューブの内腔側を、0.15MのNaClで15時間、1ml/分の流速で洗浄して、緩く結合したヘパリンを洗い流し、そして安定な表面が残ることを保証した。次に、洗浄されたチューブを、Anderson et al. (Andersson, J.; Sanchez, J.; Ekdahl, K. N.; Elgue, G.; Nilsson, B.; Larsson, R. J Biomed Mater Res A 2003, 67(2), 458-466)に本質的に従って行われた20rpmでのChandlerループモデル内でインキュベートした。鮮血からの血小板と、ループから回収された血からの血小板をセルカウンターで計数して、血栓形成を意味する血小板の消失を計測した。参照として、非血栓形成性の対照(つまり、PVCに適用されたCermeda(登録商標)BioActive Surface,これはEP−B−0495820に記載される通りに原則的に調製された)、被膜無しPVCチューブ、及び血栓形成性対照(つまり、アンチトロンビンを結合していない、硫酸化多糖の外側層を伴う、3の二重層被膜)を含んだ。
(i) アルデヒド基を備える硝酸分解ヘパリン(US4,613,665の実施例2の通りに実質的に調製)3.25g(乾燥重量)(0.65mmol)
(ii) O−(プロパ−2−イニル)−ヒドロキシルアミンヒドロクロリド(Ref:Xu, R.; Sim, M.K.; Go, M.L., Synthesis and pharmacological characterization of O-alkynyloximes of tropione and N-methylpiperadinone as muscarinic agonists. J Med Chem 1998, 41, (17), 3220-3231)0.70g dry weight (6.5mmol)
(iii) 酢酸(100%Merck)3ml
(iv) 精製水50ml
官能化ヘパリンの活性は、211IU/mgであり、これは官能化されたヘパリンの活性が、官能化により実質的に影響を受けていないことを示す。
実施例5:二機能性リンカー
5a)N−(4−(2−(ヒドロキシ)エチル)フェニル)ペンタ−4−インアミド
N−ヒドロキシスクシンイミド−(4−ペンチノエート)(Ref:Malkoch, M.; Schleicher, K.; Drockenmuller, E.; Hawker, C. J.; Russell, T.P.; Wu, P.; Fokin, V.V., Structurally Diverse Dendritic Libraries; A Highly Efficient Functionalization Approach Using Click Chemistry. Macromolecules 2005, 38, (9), 3663-3678.)(200mg、1.0mmol)及びp−アミノフェニルエタノール(125mg、0.9mmol)を、トリエチルアミン(140μl、1.0mmol)及び5滴のジメチルホルムアミドを伴う2mlのジクロロメタン中に溶解した。反応混合液を室温で2時間攪拌した。組成反応生成物を濃縮し、10mlの酢酸エチル中に溶解し、そして5mlの水、続いて5mlの0.5M・HCl(aq.)、5mlの10 NaHCO3(aq)及び最終的に5mlの水で洗浄した。有機相をMgSO4で乾燥し、ろ過し、そして溶媒を蒸発させた。生成物をさらにシリカゲルでのカラムクロマトグラフィーで、トルエン(T)と酢酸エチル(E)の勾配4:1〜1:2(T:E)で溶出することによりさらに精製した。生成物N−(4−(2−(ヒドロキシ)エチル)フェニル)ペンタ−4−インアミドを、NMRとMALDI−TOFにより特徴決定した。
N−(4−(2−(ヒドロキシ)エチル)フェニル)ペンタ−4−インアミド(210mg、1.0mmol)を、4mlのピリジンに溶解した。メタンスルホニルクロリド(MsCl)(100μl、1.3mmol)を0℃で加えた。攪拌した反応物を、室温に戻し、そして室温で5分間反応させた。溶媒を蒸発させ、そして残渣を10mlの酢酸エチルに再溶解させ、そして5mlの水、次に5mlの0.1M・HCl(aq.)、最後に5mlの水で洗浄した。有機相をMgSO4で乾燥し、ろ過し、そして溶媒を蒸発させて、生成物N−(4−(2−(メタンスルホナート)エチル)フェニル)ペンタ−4−インアミドを生成した。
N−(4−(2−(メタンスルホナート)エチル)フェニル)ペンタ−4−インアミドを、6mlのアセトニトリルに溶解し、そしてN−ヒドロキシフタルイミド(200mg、0.9mmol)及びトリエチルアミン(250μl、1.8mmol)をいれた2mlのアセトニトリルの溶液に加えた。反応混合液を、50℃で2日間攪拌した。反応混合液をつぎに40mlの酢酸エチルで希釈し、そして20mlの0.5M HCl(aq.)で洗浄し、5×30mlの10 NaHCO3(aq)で洗浄して赤色を取り除き、そして最終的に5mlの水で洗浄した。有機相をMgSO4で乾燥し、ろ過し、そして溶媒を蒸発させた。粗製生成物を10mlのトルエンで再結晶して、N−(4−(2−(N−オキシフタルイミド)エチル)フェニル)ペンタ−4−インアミドを取得し、これをNMR及びMALDI−TOFにより特徴決定した。
N−(4−(2−(N−オキシフタルイミド)エチル)フェニル)ペンタ−4−インアミド(20mg、5.5μmol)及びエチレンジアミン(200μl、3.0mmol)を2mlのエタノールに溶解した。反応液を75℃で2時間攪拌した。溶媒を蒸発させ、そして粗製生成物を、シリカゲルでのカラムクロマトグラフィーで、トルエン(T)と酢酸エチル(E)の勾配2:1〜1:3(T:E)を用いて精製した。生成物N−(4−(2−(アミノキシ)エチル)フェニル)ペンタ−4−インアミドを、NMR及びMALDI−TOFにより特徴決定した。
N−(4−(2−(アミノキシ)エチル)フェニル)ペンタ−4−インアミド(2.5mg)を計量フラスコに配置し、そしてアセトニトリル(1000μl)を加えてリンカーを溶解させた。
Claims (3)
- 哺乳動物血液と相互作用して、凝血又は血栓形成を防止することができる、ヘパリン部分の誘導体であって、当該ヘパリン部分がアルケン基を有しており、当該アルケン基がリンカーに結合し、当該リンカーが前記ヘパリン部分に末端で結合している、ヘパリン部分の誘導体。
- ヘパリン部分が、全長のヘパリンである、請求項1に記載のヘパリン部分の誘導体。
- 哺乳動物血液と相互作用して凝血又は血栓形成を防止することができる、請求項1に記載のヘパリン部分の誘導体を有する官能化ポリアミンであって、当該へパリン部分に末端で結合しているリンカーはチオエーテルを含む、官能化ポリアミン。
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US20110223229A1 (en) | 2011-09-15 |
AU2011225982A1 (en) | 2012-09-20 |
US20130273122A1 (en) | 2013-10-17 |
CA2791545C (en) | 2018-12-11 |
JP2016193219A (ja) | 2016-11-17 |
AU2011225982B2 (en) | 2014-09-04 |
CA2791545A1 (en) | 2011-09-15 |
JP5960612B2 (ja) | 2016-08-02 |
US10016512B2 (en) | 2018-07-10 |
JP2018099543A (ja) | 2018-06-28 |
JP2013521838A (ja) | 2013-06-13 |
US20160228572A9 (en) | 2016-08-11 |
EP2544728A1 (en) | 2013-01-16 |
EP2544728B1 (en) | 2017-07-19 |
ES2644369T3 (es) | 2017-11-28 |
JP2020108864A (ja) | 2020-07-16 |
WO2011110684A1 (en) | 2011-09-15 |
US10842880B2 (en) | 2020-11-24 |
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