JP7431838B2 - 放射性同位元素が標識された光架橋性ハイドロゲル及びその製造方法 - Google Patents
放射性同位元素が標識された光架橋性ハイドロゲル及びその製造方法 Download PDFInfo
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- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 210000003932 urinary bladder Anatomy 0.000 description 1
- 201000005112 urinary bladder cancer Diseases 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 229960003048 vinblastine Drugs 0.000 description 1
- JXLYSJRDGCGARV-XQKSVPLYSA-N vincaleukoblastine Chemical compound C([C@@H](C[C@]1(C(=O)OC)C=2C(=CC3=C([C@]45[C@H]([C@@]([C@H](OC(C)=O)[C@]6(CC)C=CCN([C@H]56)CC4)(O)C(=O)OC)N3C)C=2)OC)C[C@@](C2)(O)CC)N2CCC2=C1NC1=CC=CC=C21 JXLYSJRDGCGARV-XQKSVPLYSA-N 0.000 description 1
- 229960004528 vincristine Drugs 0.000 description 1
- OGWKCGZFUXNPDA-XQKSVPLYSA-N vincristine Chemical compound C([N@]1C[C@@H](C[C@]2(C(=O)OC)C=3C(=CC4=C([C@]56[C@H]([C@@]([C@H](OC(C)=O)[C@]7(CC)C=CCN([C@H]67)CC5)(O)C(=O)OC)N4C=O)C=3)OC)C[C@@](C1)(O)CC)CC1=C2NC2=CC=CC=C12 OGWKCGZFUXNPDA-XQKSVPLYSA-N 0.000 description 1
- OGWKCGZFUXNPDA-UHFFFAOYSA-N vincristine Natural products C1C(CC)(O)CC(CC2(C(=O)OC)C=3C(=CC4=C(C56C(C(C(OC(C)=O)C7(CC)C=CCN(C67)CC5)(O)C(=O)OC)N4C=O)C=3)OC)CN1CCC1=C2NC2=CC=CC=C12 OGWKCGZFUXNPDA-UHFFFAOYSA-N 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
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- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
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- A61P35/00—Antineoplastic agents
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- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
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- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
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- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
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Description
1-エチル-3-(3-ジメチルアミノプロピル)-カルボジイミド(以下、EDC)230mg、1.2mmolとN-ヒドロキシスクシンイミド(以下、NHS)276mg、2.4mmolとを入れ、30分間カルボキシ基を活性化させるために撹拌した。この化合物にPBS 10mLに溶かしたAPI(150mg、1.2mmol)を一滴ずつ添加し、12時間反応を行った。完了した合成物は、PBSで透析され、凍結乾燥してHAMA-APIを得た。
ヒアルロン酸の1次ヒドロキシル基(hydroxyl group)は、エステル交換反応に最も反応性がある部位と見なされる。ヒアルロン酸は、二糖類単位当たり4個のヒドロキシル基を有し、4個のヒドロキシル基いずれもは、メタクリレート基と混入される。
[反1]
[反2]
[反3]
[反5]
Claims (13)
- 下記化学式1で表される化合物またはその薬学的に許容可能な塩を有効成分として含み、
体内に注入された時、1~3週間注入部位に留まることを特徴とする、放射線治療用光架橋性ハイドロゲル:
OHは、光架橋が可能なメタクリレートで置換され、1H-NMRスペクトルで分析したOHのメタクリレートで置換された、メタクリル化度(degree of methacrylation; DM)は100~181%であり、
R2は水素であり、m2は1であり、
Yは、下記化学式2であり、
R1は、1つ以上の放射性同位元素を標識することができるイミダゾール、ピロール、フラン、チオフェン、インドール、及び3,4-ジヒドロキシフェニルからなる群から選択され、
m1は、1~3の整数であり、
nは、20~4,000である。 - 前記放射性同位元素は、
131I、125I、124I、123I、18F、19F、177Lu、及び211Atからなる群から選択された1つ以上であることを特徴とする、請求項1に記載の放射線治療用光架橋性ハイドロゲル。 - 前記ハイドロゲルは、
10~200μmの平均粒子を有するマイクロゲルであることを特徴とする、請求項1に記載の放射線治療用光架橋性ハイドロゲル。 - 請求項1に記載のハイドロゲルを有効成分として含有する、放射線治療用薬学組成物。
- 請求項1に記載のハイドロゲルを有効成分として含有する、放射線診断イメージング用組成物。
- 請求項1に記載のハイドロゲル及び抗ガン剤を含む、抗ガン治療用薬学組成物。
- 下記化学式3で表される化合物またはその薬学的に許容可能な塩から選択される1つ以上の光架橋性化合物を製造する段階と、
前記製造された光架橋性化合物を光開始剤溶液に溶解させた後、微小流体デバイスのインレットに注入する段階と、
前記微小流体デバイスのアウトレットに界面活性剤を含有したオイルを注入する段階と、
遠心分離を用いてマイクロドロップレットを形成する段階と、
前記形成されたマイクロドロップレットを抽出して光架橋させた後、洗浄してマイクロゲルを形成する段階と、
を含む、放射線治療用光架橋性マイクロハイドロゲルの製造方法:
OHは、光架橋が可能なメタクリレートで置換され、1H-NMRスペクトルで分析したOHのメタクリレートで置換されたメタクリル化度(degree of methacrylation; DM)は100~181%であり、
R2は水素であり、m2は1であり、
Yは、下記化学式4であり、
R1は、1つ以上の放射性同位元素を標識することができるイミダゾール、ピロール、フラン、チオフェン、インドール、及び3,4-ジヒドロキシフェニルからなる群から選択され、
m1は、1~3の整数であり、
nは、20~4,000である。 - 前記光架橋性化合物の製造段階は、
ヒアルロン酸、その塩及びこれらの組み合わせからなる群から選択された生分解性高分子及びメタクリレートを反応させる段階と、
前記反応させた反応物に1つ以上の放射性同位元素を標識することができるイミダゾール、ピロール、フラン、チオフェン、インドール、及び3,4-ジヒドロキシフェニルからなる群から選択された1つ以上の化合物を接合させる段階と、
前記接合された化合物に放射性同位元素を標識する段階と、
を含むことを特徴とする、請求項7に記載の放射線治療用光架橋性マイクロハイドロゲルの製造方法。 - 前記反応段階は、
0~10℃に冷却させた前記生分解性高分子溶液に前記メタクリレートを30分~2時間にわたって滴加し、pH7~pH11の範囲で20~30時間保持させて行われることを特徴とする、請求項8に記載の放射線治療用光架橋性マイクロハイドロゲルの製造方法。 - 前記光架橋性化合物は、
前記光開始剤溶液のうち、1~20重量%含有されることを特徴とする、請求項7に記載の放射線治療用光架橋性マイクロハイドロゲルの製造方法。 - 前記製造方法は、
現場で10~60分以内に前記マイクロゲルを製造して、即時使われることを特徴とする、請求項7に記載の放射線治療用光架橋性マイクロハイドロゲルの製造方法。 - 前記マイクロゲルは、
ゲルタイプの注射剤型で製造されることを特徴とする、請求項7に記載の放射線治療用光架橋性マイクロハイドロゲルの製造方法。 - 前記マイクロゲルは、
体内に注入されて1~3週間注入部位に留まることを特徴とする、請求項7に記載の放射線治療用光架橋性マイクロハイドロゲルの製造方法。
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