JP7361039B2 - エキソビボ皮下注入モデル - Google Patents
エキソビボ皮下注入モデル Download PDFInfo
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- JP7361039B2 JP7361039B2 JP2020544812A JP2020544812A JP7361039B2 JP 7361039 B2 JP7361039 B2 JP 7361039B2 JP 2020544812 A JP2020544812 A JP 2020544812A JP 2020544812 A JP2020544812 A JP 2020544812A JP 7361039 B2 JP7361039 B2 JP 7361039B2
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- skin
- injection
- skin explant
- composition
- insert
- Prior art date
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Description
本発明は、皮下注入の分野に関し、より具体的には、このタイプの注射のための最初のエキソビボモデルを提供する。
i)表皮の上面が覆われないようにして皮膚外植片を固化性液体マトリクスに浸漬する工程であって、このマトリクス自体は細胞培養挿入物の中に含まれており、この細胞培養挿入物の底部は多孔質膜からなる工程と、
ii)上記表皮の上面が覆われていないこの皮膚外植片の浸漬された部分を捕捉するようにこのマトリクスを固化させて、この同じマトリクスを上記挿入物の側壁及び多孔質膜に接着する工程と
を備え、
上記皮膚外植片は、厚さが少なくとも5mmの皮下組織を含み、上記方法は、皮下注入のためのエキソビボモデルを得ることを目的とすることを特徴とするインビトロ方法に関する。
iii)上記挿入物を容器又は培養ウェルに置く工程と、
iv)上記皮膚外植片を適切な培地の中で培養する工程と
をさらに備える。
a)25~75%(体積/全量^*)、好ましくは35%~45%(v/v)のフィブリノーゲン、
b)5%~12%(体積/全量)、好ましくは8%の1%CaCl2生理食塩水溶液、
c)好ましくは5%~2%の抗線維素溶解剤であって、好ましくはトラネキサム酸又はアプロチニンから選択される抗線維素溶解剤、
d)0.5%~4%、好ましくは1%~2%の低融点アガロース、及び
e)100%にするための0.9% NaCl溶液等の生理溶液
を含む。
iii)上記挿入物を容器又は培養ウェルに置く工程と、
iv)上記皮膚外植片を適切な培地の中で培養する工程と
をさらに備える。
v)皮下に、及び皮膚外植片に、組成物を注入する工程
をさらに備える。
vi)上記組成物の注入性を決定する工程
をさらに備える。
スコア1:注入は不可能又は非常に困難;流動:ゼロ又は遅い(うねり)
スコア2:困難な注入;流動:最初は遅く(うねり)、次いで連続的
スコア3:的確な注入;流動:連続的
スコア4:容易な注入;流動:連続的
実験者は、与えられた組成物を数回注入することにより、その組成物に平均の注入性の値を割り当てることができる。
1)シリンジプランジャーを移動させるために必要とされる力に対応する、初期摺動平衡応力(「初期摺動平衡応力」又はPBF)、
2)シリンジプランジャーがシリンジの末端でそのストロークを完了する前にシリンジプランジャーを移動させるための最大の力の測定値に対応する、最大力(Fmax)、及び/又は
3)シリンジプランジャーがその内容物を吐出するようにシリンジプランジャーを移動し続けるために必要とされる力に対応する、動的摺動平衡応力(「動的摺動平衡応力」又はDGF)
を測定することが可能になる。
vi)上記組成物の注入から生じる局所毒性及び/又は上記組成物の有効性を用いて、上記組成物の注入ボーラスを決定する工程
を備えてもよい。
2人の別々の提供者由来の2つの完全な皮膚試料から皮膚外植片を調製する。この試料は表皮、真皮、及び皮下組織(1.5~2cm)を含む。次いで、この外植片(表皮、真皮、及び皮下組織)を金属穿孔器を使用して切断し、直径11~20mmの円柱を得る。この円柱において、皮下組織の厚さは所望の値(0.5~1cm)に調整されている。次いで、これらを、固化したマトリクスへの「包埋」の段階まで、緩衝生理食塩水溶液に浮いた状態で保つ。
皮膚外植片を上記のように調製する。
Claims (7)
- 皮下組織注入をモデリングするためのインビトロ方法であって、
i)表皮の上面が覆われないようにして皮膚外植片を固化性液体マトリクスに浸漬する工程であって、このマトリクス自体は細胞培養挿入物の中に含まれており、この細胞培養挿入物の底部は多孔質膜からなる工程と、
ii)前記表皮の上面が覆われていないこの皮膚外植片の浸漬された部分を捕捉するようにこのマトリクスを固化させて、この同じマトリクスを前記挿入物の側壁及び前記多孔質膜に接着する工程と
iii)前記挿入物を容器又は培養ウェルに置く工程と、
iv)前記皮膚外植片を適切な培地の中で培養する工程と
を備え、
前記皮膚外植片は、厚さが少なくとも5mmの皮下組織を含み、前記方法は、v)前記皮膚外植片の皮下組織に組成物を注入する工程
をさらに備える、インビトロ方法。 - vi)前記組成物の注入性を決定する工程
をさらに備えることを特徴とする請求項1に記載の方法。 - vi)前記組成物の注入から生じる局所毒性及び/又は前記組成物の有効性を用いて前記組成物の注入ボーラスを決定する工程
をさらに備えることを特徴とする請求項1に記載の方法。 - 皮下組織注入のためのエキソビボモデルとしての細胞培養挿入物の使用であって、前記細胞培養挿入物は容器又は培養ウェルの中に置くことができ、前記細胞培養挿入物は多孔質膜からなる底部を有し、前記細胞培養挿入物は、前記挿入物の内縁及び前記多孔質膜と接触している固化したマトリクスの中に捕捉された前記皮膚外植片を含有し、
前記皮膚外植片は、厚さが少なくとも5mmの皮下組織を含み、前記皮膚外植片の表皮は、雰囲気と接触しており、前記皮膚外植片の真皮、表皮付属器、及び皮下組織は、固化した前記マトリクスの中に浸漬されている、前記使用。 - 前記皮下組織注入のためのエキソビボモデルが組成物の注入性を決定することを目的とすることを特徴とする請求項4に記載の使用。
- 前記皮下組織注入のためのエキソビボモデルが、組成物の注入から生じる局所毒性及び/又は前記組成物の有効性を用いて、組成物の注入ボーラスを決定することを目的とすることを特徴とする請求項4に記載の使用。
- 細胞培養挿入物と、皮下組織注入のための自動注入デバイスとを含むキットであって、前記細胞培養挿入物は容器又は培養ウェルの中に置くことができ、前記細胞培養挿入物は多孔質膜からなる底部を有し、前記細胞培養挿入物は、前記細胞培養挿入物の内縁及び前記多孔質膜と接触している固化したマトリクスの中に捕捉された前記皮膚外植片を含有し、
前記皮膚外植片は、厚さが少なくとも5mmの皮下組織を含み、前記皮膚外植片の表皮は、雰囲気と接触しており、前記皮膚外植片の真皮、表皮付属器、及び皮下組織は、固化した前記マトリクスの中に浸漬されている、前記キット。
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FR1870232A FR3078541B1 (fr) | 2018-03-05 | 2018-03-05 | Modele d’injection sous-cutanee ex vivo |
FR1870232 | 2018-03-05 | ||
PCT/EP2019/000061 WO2019170281A1 (fr) | 2018-03-05 | 2019-03-03 | Modele d'injection sous cutanee ex vivo |
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FR3123125A1 (fr) | 2021-05-20 | 2022-11-25 | Genoskin | Modèle humain ex vivo destiné à l’évaluation du potentiel inflammatoire de type allergique ou pseudo-allergique |
EP4388311A1 (en) * | 2021-08-20 | 2024-06-26 | Amgen Inc. | Methods comprising therapeutic compounds and in vitro mammalian skin |
FR3132146A1 (fr) | 2022-01-27 | 2023-07-28 | Genoskin | Modèle humain ex vivo destiné à l’évaluation du potentiel vaccinal d’une composition |
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JP2002544235A (ja) | 1999-05-14 | 2002-12-24 | アドバンスド ティシュー サイエンシズ,インコーポレーテッド | 細胞培養ならし培地組成物およびその使用方法 |
WO2012059703A1 (fr) | 2010-11-05 | 2012-05-10 | Centre National De La Recherche Scientifique (Cnrs) | Procede in vitro ou ex vivo pour la conservation et/ou la maintenance en survie d'un epiderme |
US20150132737A1 (en) | 2012-05-03 | 2015-05-14 | Genoskin | System for keeping alive and transporting skin biopsies and applications of said system |
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WO2014150545A1 (en) * | 2013-03-15 | 2014-09-25 | Mary Kay Inc. | Cosmetic compositions and uses thereof |
FR3032446B1 (fr) * | 2015-02-10 | 2018-11-02 | Genoskin | Procede d implantation d amas cellulaires dans un explant de peau |
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JP2002544235A (ja) | 1999-05-14 | 2002-12-24 | アドバンスド ティシュー サイエンシズ,インコーポレーテッド | 細胞培養ならし培地組成物およびその使用方法 |
WO2012059703A1 (fr) | 2010-11-05 | 2012-05-10 | Centre National De La Recherche Scientifique (Cnrs) | Procede in vitro ou ex vivo pour la conservation et/ou la maintenance en survie d'un epiderme |
US20150132737A1 (en) | 2012-05-03 | 2015-05-14 | Genoskin | System for keeping alive and transporting skin biopsies and applications of said system |
Non-Patent Citations (2)
Title |
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APPLIED IN VITRO TOXICOLOGY (2015) Vol.1, No.1, pp.26-32 |
繊消誌(1977) Vol.18, No.5, pp.13-16(162-165) |
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EP3762481A1 (fr) | 2021-01-13 |
JP2021516542A (ja) | 2021-07-08 |
US20200400652A1 (en) | 2020-12-24 |
FR3078541A1 (fr) | 2019-09-06 |
SG11202010680QA (en) | 2020-11-27 |
CA3091505A1 (fr) | 2019-09-12 |
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