JP2022543137A - 高分子マイクロ粒子の製造方法、高分子マイクロ粒子、それを含む医療用組成物、美容組成物、医療用品および美容用品 - Google Patents
高分子マイクロ粒子の製造方法、高分子マイクロ粒子、それを含む医療用組成物、美容組成物、医療用品および美容用品 Download PDFInfo
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Abstract
Description
本出願は2019年9月27日付韓国特許出願第10-2019-0120094号および2020年9月24日付韓国特許出願第10-2020-0124264号に基づく優先権の利益を主張し、当該韓国特許出願の文献に開示されたすべての内容は本明細書の一部として含まれる。
1.高分子マイクロ粒子の製造方法
発明の一実施形態によれば、生体適合性高分子が架橋剤を媒介として架橋した形態の高分子マトリックスを含む、高分子マイクロ粒子が提供される。
本発明のまた他の実施形態によれば、前記他の実施形態の高分子マイクロ粒子および前記高分子マイクロ粒子内に含有された薬学的有効物質を含む医療用組成物が提供される。前記高分子マイクロ粒子に関する内容は前記他の実施形態で上述したすべての内容を含み得る。
本発明のまた他の実施形態によれば、前記他の実施形態の高分子マイクロ粒子および前記高分子マイクロ粒子内に含有された美容的有効物質を含む美容組成物が提供される。前記高分子マイクロ粒子に関する内容は前記他の実施形態で上述したすべての内容を含み得る。
本発明のまた他の実施形態によれば、前記他の実施形態の医療用組成物を含む医療用品が提供される。前記医療用組成物に関する内容は前記他の実施形態で上述したすべての内容を含み得る。
本発明のまた他の実施形態によれば、本発明は前記他の実施形態の美容組成物を含む美容用品が提供される。前記美容組成物に関する内容は前記他の実施形態で上述したすべての内容を含み得る。
ヒアルロン酸塩(重量平均分子量:500kDa、製造会社:SKバイオランド)0.15gおよびゼラチン(ゲル強度:300g Bloom、製造会社:Sigma、製品名:G2500)1gをそれぞれ蒸溜水に3wt.%、20wt.%で溶かして製造した後、この二つの溶液を1:1体積比で混合する。この混合溶液(11.15g)を液体パラフィン溶液(40g)と混合して油中水型(W/O)マイクロエマルジョンを含む混合液を製造した。その後、前記混合液51.15gに架橋剤として1,4-ブタンジオールジグリシジルエーテル(1,4-Butandiol diglycidyl ether,BDDE)を1.1g(1ml)添加し、常温で5日間架橋反応させた後、アセトン、ジクロロメタン、蒸溜水の順に洗浄して架橋粒子を製造した。この時、ふるい目の大きさが45μmの網ふるいを用いて製造した架橋粒子を回収した。
ヒアルロン酸塩を添加せずゼラチンのみを1g添加したことを除いては、前記実施例1と同様の方法で高分子マイクロ粒子を製造した。
ヒアルロン酸塩(重量平均分子量:500kDa、製造会社:SKバイオランド)0.15gおよびゼラチン(ゲル強度:300g Bloom、製造会社:Sigma、製品名:G2500)1gをそれぞれ蒸溜水に3wt.%、20wt.%で溶かして製造した後、この二つの溶液を1:1体積比で混合する。この混合溶液(11.15g)を液体パラフィン溶液(40g)と混合して油中水型(W/O)マイクロエマルジョンを含む混合液を製造した。その後、前記混合液51.15gに架橋剤として1,4-ブタンジオールジグリシジルエーテル(1,4-Butandiol diglycidyl ether,BDDE)を1.1g(1ml)添加して常温で5日間架橋反応させた。
ヒアルロン酸塩(重量平均分子量:500kDa、製造会社:SKバイオランド)0.15gおよびゼラチン(ゲル強度:300g Bloom、製造会社:Sigma、製品名:G2500)1gをそれぞれ蒸溜水に3wt.%、20wt.%で溶かして製造した後、この二つの溶液を1:1体積比で混合する。この混合溶液(11.15g)を液体パラフィン溶液(40g)と混合して油中水型(W/O)マイクロエマルジョンを含む混合液を製造した。その後、前記混合液51.15gに架橋剤として1,4-ブタンジオールジグリシジルエーテル(1,4-Butandiol diglycidyl ether,BDDE)を1.1g(1ml)添加して常温で5日間架橋反応させた。製造された粒子をアセトン、ジクロロメタン、蒸溜水の順に洗浄した後ふるい目の大きさが45μmの網ふるいを用いて製造された架橋粒子を回収した。
ヒアルロン酸塩(重量平均分子量:500kDa、製造会社:SKバイオランド)0.15gおよびゼラチン(ゲル強度:300g Bloom、製造会社:Sigma、製品名:G2500)1gをそれぞれ蒸溜水に3wt.%、20wt.%で溶かして製造した後、この二つの溶液を1:1体積比で混合する。この混合溶液(11.15g)を液体パラフィン溶液(40g)と混合して油中水型(W/O)マイクロエマルジョンを含む混合液を製造した。その後、前記混合液51.15gに架橋剤として1,4-ブタンジオールジグリシジルエーテル(1,4-Butandiol diglycidyl ether,BDDE)を1.1g(1ml)添加して常温で5日間架橋反応させた。製造された粒子をアセトン、ジクロロメタン、蒸溜水の順に洗浄した後ふるい目の大きさが45μmの網ふるいを用いて製造された架橋粒子を回収した。回収された架橋粒子をふるい目の大きさが300μmの網ふるいにかけて残った架橋粒子を分析した。
前記実施例および比較例で製造された高分子マイクロ粒子について次のような方法で高分子マイクロ粒子の膨潤度、球形化度、強度、細胞培養適合性、および安定性を評価した。
前記実施例および比較例の高分子マイクロ粒子の平均直径を測定し、これに基づいて膨潤度を計算した。
前記実施例および比較例の高分子マイクロ粒子の光学(Olympus,BX53)写真を撮影し、それに基づいて球形化度を計算した。
この時、球形化度値が1に近いほど球形に近いことを意味する。
前記実施例および比較例の高分子マイクロ粒子に対して、テクスチャーアナライザー(Texture analyzer)装備を用いて、マイクロ粒子の強度を測定した。5N ロードセル(load cell)が取り付けられた装備のフラットシリンダープローブ(flat cylindrical probe)の下の領域に蒸溜水で膨潤されたマイクロ粒子30個を単層に載せた。初期トリガー力(trigger force)は1mNに設定し、1mm/s速度で粒子を圧縮した。粒子平均直径が本来の直径の50%水準に変形されたときの力を圧縮力とした。
6ウェルプレート(well plate)に細胞培養液を埋め、高分子マイクロ粒子と細胞を入れてプレートロッキング(plate-rocking)方式で細胞を培養した。この時、培養液の温度は37℃を維持し、3日間培養して高分子マイクロ粒子で培養された細胞数を確認した。
適合:投入された細胞数に対して培養された細胞数が150%以上の場合
不適合:投入された細胞数に対して培養された細胞数が150%未満の場合
高温高圧方式減菌器(Autoclave)を用いることによりリン酸緩衝生理食塩水(phosphate-buffered saline)溶液に含まれた高分子マイクロ粒子の滅菌処理時安定性および長期培養による粒子安定性を以下の基準により評価した。
適合:高温高圧方式減菌器(Autoclave)利用前と後の乾燥された高分子マイクロ粒子の重量減少率10%以下の場合
不適合:高温高圧方式減菌器(Autoclave)利用前と後の乾燥された高分子マイクロ粒子の重量減少率10%超の場合
Claims (18)
- エマルジョン状態の生体適合性高分子と第1架橋剤を含む混合物を1次架橋反応させて架橋粒子を形成する段階;および
前記架橋粒子を抽出して第2架橋剤を含む有機溶媒相で2次架橋反応させる段階;を含む、高分子マイクロ粒子の製造方法。 - 前記架橋粒子を抽出して第2架橋剤を含む有機溶媒相で2次架橋反応させる段階で、
前記架橋粒子および第2架橋剤は固相で架橋反応を行うものである、請求項1に記載の高分子マイクロ粒子の製造方法。 - 前記エマルジョン状態の生体適合性高分子と第1架橋剤を含む混合物を1次架橋反応させて架橋粒子を形成する段階は、
前記生体適合性高分子を溶かした水溶液を疎水性溶媒に添加してエマルジョンを形成する段階;および
前記エマルジョンが含まれた混合溶液に第1架橋剤を添加する段階;を含む、請求項1に記載の高分子マイクロ粒子の製造方法。 - 前記エマルジョン状態の生体適合性高分子と第1架橋剤を含む混合物を1次架橋反応させて架橋粒子を形成する段階で、
前記第1架橋剤は前記生体適合性高分子100重量部に対して30重量部以上300重量部以下で含まれる、請求項1に記載の高分子マイクロ粒子の製造方法。 - 前記架橋粒子を抽出して第2架橋剤を含む有機溶媒相で2次架橋反応させる段階で、
前記第2架橋剤は前記生体適合性高分子100重量部に対して30重量部以上300重量部以下で含まれる、請求項1に記載の高分子マイクロ粒子の製造方法。 - 前記架橋粒子を抽出して第2架橋剤を含む有機溶媒相で2次架橋反応させる段階で、
前記第2架橋剤を含む有機溶媒はアルカリ性混合溶媒である、請求項1に記載の高分子マイクロ粒子の製造方法。 - 前記有機溶媒はエタノール、N,N-ジメチルホルムアミド、N,N-ジメチルアセトアミド、N-メチル-2-ピロリドン、N-メチルカプロラクタム、2-ピロリドン、N-エチルピロリドン、N-ビニルピロリドン、ジメチルスルホキシド、テトラメチルウレア、ピリジン、ジメチルスルホン、ヘキサメチルスルホキシド、ガンマ-ブチロラクトン、3-メトキシ-N,N-ジメチルプロパンアミド、3-エトキシ-N,N-ジメチルプロパンアミド、3-ブトキシ-N,N-ジメチルプロパンアミド、1,3-ジメチル-イミダゾリジノン、エチルアミルケトン、メチルノニルケトン、メチルエチルケトン、メチルイソアミルケトン、メチルイソプロピルケトン、シクロヘキサノン、エチレンカーボネート、プロピレンカーボネート、ジグライム、4-ヒドロキシ-4-メチル-2-ペンタノン、エチレングリコールモノメチルエーテル、エチレングリコールモノメチルエーテルアセテート、エチレングリコールモノエチルエーテル、エチレングリコールモノエチルエーテルアセテート、エチレングリコールモノプロピルエーテル、エチレングリコールモノプロピルエーテルアセテート、エチレングリコールモノイソプロピルエーテル、エチレングリコールモノイソプロピルエーテルアセテート、エチレングリコールモノブチルエーテル、エチレングリコールモノブチルエーテルアセテートからなる群より選ばれた一つである、請求項1に記載の高分子マイクロ粒子の製造方法。
- 前記第1架橋剤および前記第2架橋剤はそれぞれ独立して、ブタンジオールジグリシジルエーテル、エチレングリコールジグリシジルエーテル、ヘキサンジオールジグリシジルエーテル、プロピレングリコールジグリシジルエーテル、ポリプロピレングリコールジグリシジルエーテル、ポリテトラメチレングリコールジグリシジルエーテル、ネオペンチルグリコールジグリシジルエーテル、ポリグリコールポリグリシジルエーテル、ジグリセロールポリグリシジルエーテル、グリセロールポリグリシジルエーテル、トリメチルプロパンポリグリシジルエーテル、ビスエポキシプロポキシエチレン、ペンタエリスリトールポリグリシジルエーテルおよびソルビトールポリグリシジルエーテル、ジビニルスルホン、グルタルアルデヒドからなる群より選ばれた一つを含む、請求項1に記載の高分子マイクロ粒子の製造方法。
- 生体適合性高分子が架橋剤を媒介として架橋した形態の高分子マトリックスを含む、高分子マイクロ粒子。
- 蒸溜水での平均直径が1μm以上650μm以下である、請求項9に記載の高分子マイクロ粒子。
- 粒子平均直径の50%水準に変形されたときの平均圧縮強度が0.1mN以上である、請求項9に記載の高分子マイクロ粒子。
- 前記高分子マトリックスは生体適合性高分子が第1架橋剤を媒介として架橋した第1架橋領域;および
生体適合性高分子が第2架橋剤を媒介として架橋した第2架橋領域;を含む、請求項9に記載の高分子マイクロ粒子。 - 前記高分子マイクロ粒子は請求項1に記載の高分子マイクロ粒子の製造方法によって製造された、請求項9に記載の高分子マイクロ粒子。
- 請求項9に記載の高分子マイクロ粒子および前記高分子マイクロ粒子内に含有された薬学的有効物質を含む、医療用組成物。
- 請求項9に記載の高分子マイクロ粒子および前記高分子マイクロ粒子内に含有された美容的有効物質を含む、美容組成物。
- 請求項15に記載の医療用組成物を含む、医療用品。
- 請求項16に記載の美容組成物を含む、美容用品。
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