JP2019523289A - 軟骨再生用組成物及びその製造方法 - Google Patents
軟骨再生用組成物及びその製造方法 Download PDFInfo
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- JP2019523289A JP2019523289A JP2019505508A JP2019505508A JP2019523289A JP 2019523289 A JP2019523289 A JP 2019523289A JP 2019505508 A JP2019505508 A JP 2019505508A JP 2019505508 A JP2019505508 A JP 2019505508A JP 2019523289 A JP2019523289 A JP 2019523289A
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Abstract
Description
(a)胎児軟骨組織から軟骨前駆細胞を分離して培養する段階、
(b)前記培養された軟骨前駆細胞及びその細胞外基質を含む細胞膜を取り出す段階、
(c)前記取り出した細胞膜を遠心分離して細胞ペレットを得る段階、及び
(d)前記細胞ペレットを軟骨分化培地で培養する段階。
形状:ゲル状
圧縮強度:製造後、インビトロの状態で1mm/分の速度で押して組織の歪みが10〜16%に変わるときに加わったヤング率が20kPa以下、好ましくは0.2〜20kPa、より好ましくは4.1〜18.9kPa。
塗布性:製造後、インビトロの状態で1mm/分の速度で1秒間5Nの力を垂直に試料に加えたとき、単位重さ(1mg)当たり拡散面積が0.1〜2.0mm2/mg、好ましくは0.2〜1.7mm2/mg、より好ましくは0.4〜1.2mm2/mgの塗布性。
付着性:製造後、インビトロ状態で直径5mmのジグと患部に物質を接触させて付着させた後、1.3mm/分の速度で引っ張るとき、ジグと患部に付着した物質が取れて分離されるときの力が0.5〜5.0kPa、好ましくは0.9〜4.5kPa、より好ましくは1.0〜2.8kPaである付着性。
(a)胎児軟骨組織から軟骨前駆細胞を分離して培養する段階、
(b)前記培養された軟骨前駆細胞及びその細胞外基質を含む細胞膜を取り出す段階、
(c)前記取り出された細胞膜を遠心分離して細胞ペレットを得る段階、及び
(d)前記細胞ペレットを軟骨分化培地で培養する段階。
軟骨再生用組成物の製造のための製造段階に対する模式図は図1に示し、製造方法は下記の通りである。
前記実施例1の細胞ペレットから軟骨再生用組成物を製造する過程で、1週経過毎に、4%ホルマリンで固定させた後、パラフィンに包埋し、4μm厚さに切断した後、蓄積された硫酸化されたプロテオグリカンの検出のために横断面にサフラニンO染色及びヘマトキシリン・エオジン(H&E)染色を行った。
前記実施例1で、1週、2週及び3週間培養された軟骨再生用組成物の水分含有量、DNA量、グリコサミノグリカン(GAG)とヒドロキシプロリンの含量を測定した。
万能試験機(Model H5K−T、H.T.E、イギリス)を用いて軟骨再生用組成物の圧縮強度を確認した。
圧縮強度の測定のために、まず各試料(n=6)を写真撮影した後、イメージJ(image J)プログラムを用いて断面積及び高さを計算した。各試料を1mm/分の速度で組織の歪みが20%となるまで押した後、歪みが10〜16%の区間でのヤング率の値を測定し、インビトロの結果とエクスビボの結果を図5に示した。
細胞源の違いによる軟骨再生用組成物生成有無の確認
細胞源を異にしながら本発明による胎児軟骨組織由来の細胞及び胎児軟骨組織由来の細胞外基質を含む軟骨再生用組成物の軟骨素材への利用可能性を確認した。
万能試験機(Model H5K−T、H.T.E、イギリス)を使って、前記実施例1で製造した軟骨再生用組成物の塗布性(拡散程度)を測定した。
万能試験機(Model H5K−T、H.T.E、イギリス)を使って、前記実施例1で製造した軟骨再生用組成物の付着性を測定した。
培地組成の変化による軟骨再生用組成物の生成変化を確認するために、培地の組成を変更しながら実施例1の方法と同様に軟骨再生用組成物を製造した。
前記結果から、本発明による軟骨再生用組成物の製造において、軟骨培地が適した培地組成を有することを確認した。
実施例1で軟骨培地に2週間培養して製造した軟骨再生用組成物を軟骨損傷モデルと同じ形態のブロックを作って移植した後、ヌードマウスの皮下に2週、4週、8週及び12週間培養し、一般に臨床に使われる骨軟骨自己移植術(Osteochondral Autologous Transplantation、OAT)を対照群として使った。該当組織を取り出し、それぞれのブロックを4%ホルマリンで固定させた後、パラフィンに包埋し、4μm厚さに切断した後、横断面にサフラニンO染色とコラーゲンの量を肉眼で確認するための免疫組織化学的染色を行った。免疫染色で第一コラーゲンと第二コラーゲンを確認した。
細胞の表面に標識される蛍光発現因子PKH−26を標識した細胞を前記実施例1の方法にしたがって軟骨培地で培養して軟骨再生用組成物を製造し、培養1日目と7日目にPKH−26の発現有無を確認した。
本発明の実施例1によってインビトロにおいて2週間軟骨培地で培養させた軟骨再生用組成物を実施例9のように製作したウサギの部分層軟骨欠損モデルに移植した。
サルの膝の大腿骨内側顆(Medial Condyle)の部分に3mm生検パンチ(biopsy punch)を用いて軟骨損傷モデルを製作した。損傷された軟骨欠損部位にインビトロで2週間培養した軟骨再生用組成物を移植し、8週、16週及び24週間MRIを撮影して軟骨再生程度を確認した。対照群としては何ら処置しない群を使った。
Claims (14)
- 胎児軟骨組織由来の細胞及び胎児軟骨組織由来の細胞外基質を含む軟骨再生用組成物であって、
前記組成物はゲル状であり、インビトロの状態で、1mm/分の速度で押したときにヤング率が20kPa以下である圧縮強度、1mm/分の速度で1秒間5Nの力を垂直に試料に加えたときの拡散程度が0.1〜2.0mm2/mgである塗布性、及び直径5mmのジグと患部に物質を接触させて付着させた後に1.3mm/分の速度で引っ張ることによって分離されるときの力が0.5〜5.0kPaである付着強度の物性を有する、軟骨再生用組成物。 - 1mm/分の速度で押したときにヤング率が0.2〜20kPaである圧縮強度、1mm/分の速度で1秒間5Nの力を垂直に試料に与えたときの拡散程度が0.2〜1.7mm2/mgである塗布性、及び直径5mmのジグと患部に物質を接触させて付着させた後に1.3mm/分の速度で引っ張ることによって分離されるときの力が0.9〜4.5kPaである付着強度の物性を有する、請求項1に記載の軟骨再生用組成物。
- 前記軟骨再生用組成物は、生体条件で糖タンパクと第二コラーゲンの発現が増進して成熟軟骨の特性を示す、請求項1に記載の軟骨再生用組成物。
- (a)胎児軟骨組織から軟骨前駆細胞を分離して培養する段階、
(b)前記培養された軟骨前駆細胞及びその細胞外基質を含む細胞膜を取り出す段階、
(c)前記取り出した細胞膜を遠心分離して細胞ペレットを得る段階、及び
(d)前記細胞ペレットを軟骨分化培地で培養する段階、を含む、胎児軟骨組織由来の細胞及び胎児軟骨組織由来の細胞外基質を含む軟骨再生用組成物の製造方法。 - 前記(b)段階の細胞膜の取り出しは、細胞の分離段階なしに底に付着した細胞とともに細胞外基質を全て含めて取り出す、請求項4に記載の軟骨再生用組成物の製造方法。
- 前記(d)段階の軟骨分化培地は、インシュリン、ヒトトランスフェリン、亜セレン酸ナトリウム、アスコルビン酸、ウシ血清アルブミン(BSA)、デキサメタゾン、プロリン及びTGF−βからなる群から選択される1種以上の成分を含む、請求項4に記載の軟骨再生用組成物の製造方法。
- 前記(d)段階の培養の期間は4週以内である、請求項4に記載の軟骨再生用組成物の製造方法。
- 前記培養期間によって軟骨再生用組成物の圧縮強度、付着性及び塗布性を調節する、請求項4に記載の軟骨再生用組成物の製造方法。
- 請求項4〜8のいずれかに記載の軟骨再生用組成物の製造方法によって製造された、軟骨再生用組成物。
- 請求項1〜3のいずれかに記載の軟骨再生用組成物を有効成分として含む、軟骨欠陥疾患治療用薬剤学的組成物。
- 前記軟骨欠陥疾患は、退行性関節炎、リウマチ性関節炎、骨折、筋肉組織の損傷、足底筋膜炎、上腕骨外側上顆炎、石灰沈着性腱炎、骨折の偽関節及び外傷による関節損傷から選択される一つである、請求項10に記載の軟骨欠陥疾患治療用薬剤学的組成物。
- 請求項1〜3のいずれかに記載の軟骨再生用組成物の薬剤学的に有効な量を患者に投与して軟骨欠陥疾患を治療する方法。
- 軟骨欠陥疾患の治療のための薬剤の製造において請求項1〜3のいずれかに記載の軟骨再生用組成物の用途。
- 軟骨欠陥疾患の治療に使うための請求項1〜3のいずれかに記載の軟骨再生用組成物。
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KR100816395B1 (ko) * | 2006-09-21 | 2008-03-27 | (주)필미아젠 | 세포 유래 세포외기질막의 제조방법 |
KR20100005105A (ko) * | 2007-05-06 | 2010-01-13 | 민병현 | 세포외 기질 지지체를 이용한 연골질환 치료용 조성물 |
KR101340458B1 (ko) | 2010-11-02 | 2013-12-11 | 서울대학교산학협력단 | 하이드로겔을 포함하는 연골 이식용 조성물 |
EP2546335A1 (en) * | 2011-07-11 | 2013-01-16 | Centre Hospitalier Universitaire Vaudois (CHUV) | Foetal epiphyseal chondrocyte (FEC) parental cell bank |
CN102526806B (zh) * | 2012-01-20 | 2013-12-18 | 陕西博鸿生物科技有限公司 | 一种组织工程软骨及其制备方法 |
EP2634251A1 (en) * | 2012-02-29 | 2013-09-04 | Technische Universität Berlin | 3D in vitro bi-phasic cartilage-bone construct |
KR20140016841A (ko) * | 2012-07-30 | 2014-02-10 | 아주대학교산학협력단 | 태아연골조직유래 줄기세포원 및 이를 포함하는 세포치료제 |
KR20150067518A (ko) * | 2013-12-10 | 2015-06-18 | 인제대학교 산학협력단 | 연골세포 유래 세포외 기질막을 유효성분으로 함유하여 수술 후 유착 방지용 조성물 |
JP6446222B2 (ja) * | 2014-09-30 | 2018-12-26 | 株式会社ジーシー | 軟骨分化培養液、及び軟骨組織の製造方法 |
KR20160095677A (ko) * | 2015-02-03 | 2016-08-12 | 아주대학교산학협력단 | 연골결손 치료용 조성물 및 인공연골 제조방법 |
CN105039247B (zh) * | 2015-07-13 | 2018-07-20 | 暨南大学 | 一种用于诱导干细胞向成软骨分化的制剂及制备方法与应用 |
CN105754937A (zh) * | 2016-03-31 | 2016-07-13 | 北京大学第三医院 | 一种促进软骨分化的细胞共培养体系及其制备方法 |
KR101718669B1 (ko) * | 2016-12-16 | 2017-03-21 | 아주대학교산학협력단 | 연골결손 치료용 조성물 및 인공연골 제조방법 |
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- 2017-08-02 CN CN201780061241.9A patent/CN109789246B/zh active Active
- 2017-08-02 US US16/322,193 patent/US11801331B2/en active Active
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KR20180015041A (ko) | 2018-02-12 |
KR101836475B1 (ko) | 2018-03-08 |
WO2018026198A1 (ko) | 2018-02-08 |
JP6980004B2 (ja) | 2021-12-15 |
US20190184061A1 (en) | 2019-06-20 |
CN109789246B (zh) | 2022-06-17 |
EP3517144A1 (en) | 2019-07-31 |
EP3517144C0 (en) | 2024-05-01 |
US11801331B2 (en) | 2023-10-31 |
CN109789246A (zh) | 2019-05-21 |
EP3517144B1 (en) | 2024-05-01 |
EP3517144A4 (en) | 2020-07-22 |
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