JP2011529340A - ヒト幹細胞から高活性の幹細胞を分離する方法及びその方法により分離された高活性の幹細胞 - Google Patents
ヒト幹細胞から高活性の幹細胞を分離する方法及びその方法により分離された高活性の幹細胞 Download PDFInfo
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Abstract
本発明によると、本発明の方法を用いる際、種々の起源の間葉系幹細胞から高活性幹細胞を分離するのに非常に有用であり、また他の条件で培養されている種々の起源の幹細胞においても適用可能であるため、高活性の細胞治療剤を開発する上で、非常に有用に用いられ得る。体外で種々の継代により増大する老化された幹細胞を効果的に分離することができるため、幹細胞の活性を回復する方法として提示され得る。
【選択図】図2
Description
ヒト幹細胞から細胞凝集体を形成する工程(a)と、
上記形成された細胞凝集体を、細胞凝集体に含まれていない細胞から分離する工程(b)とを含む。
体外で培養されていたヒト幹細胞をタンパク質分解酵素(0.25% trypsin/EDTA)で処理した後、ウシ血清培地を含まないDMEM(Dulbecco’s Modified Eagles’s Medium, ウェルジン(WelGENE Inc.))+20%SR(ギブコ)培地において24時間、低接着ペトリ皿(SPL)を用いて浮遊培養させた。
24時間浮遊培養して得られた細胞凝集体を、ストレーナを用いて細胞凝集体に含まれていない他の細胞から分離した。
1.リアルタイムPCRによる遺伝子発現の定量
分離された細胞のRNAから合成されたcDNAと、幹細胞に関連する遺伝子のプライマー(primer)を用いてリアルタイムPCRを行った。
分離された細胞の培養液に対して、抗体を用いた分析を行い、種々のサイトカインの分泌能を確認した。
分離された細胞の核染色を行い、細胞周期による変化を確認した。
本発明の方法を用いて、ヒト臍帯血由来の間葉系幹細胞から高活性の間葉系幹細胞を分離した。体外培養によって培養されていた幹細胞をタンパク質分解酵素(0.25% trypsin/EDTA)で処理した後、ウシ血清を含まないDMEM+20%SR培地において、低接着ペトリ皿を用いて24時間浮遊培養させた。24時間浮遊培養して得られた細胞凝集体を、ストレーナを用いて細胞凝集体に含まれていない他の細胞から分離した。分離された細胞のRNAを用いてcDNAを合成した後、幹細胞関連の遺伝子のプライマーを用いて、リアルタイムPCRを行い、幹細胞のマーカーに関連する遺伝子の発現量を確認した。種々のサイトカインの分泌能は、分離された細胞の培養液に対して抗体を用いて確認され、また、細胞の核染色により細胞周期の変化を確認した。細胞凝集体の形成後、幹細胞関連遺伝子の発現率は増大し、合成期であるS期が有意的に増大することを観察した。血管形成及び成長関連サイトカインも有意的に増大することを確認した。
本発明の方法を用いて、ヒト胚性幹細胞由来の間葉系幹細胞から高活性の間葉系幹細胞を分離した。体外培養によって培養されていた幹細胞をタンパク質分化酵素(0.25% trypsin/EDTA)で処理した後、ウシ血清を含まないDMEM+20%SR培地において、低接着ペトリ皿を用いて24時間浮遊培養させた。24時間浮遊培養をして得られた細胞凝集体を、ストレーナを用いて細胞凝集体に含まれていない他の細胞から分離した。分離された細胞のRNAを用いてcDNAを合成した後、幹細胞関連の遺伝子のプライマーを用いて、リアルタイムPCRを行い、幹細胞のマーカー関連する遺伝子の発現量を確認した。種々のサイトカインの分泌能は、分離された細胞の培養液に対して抗体を用いて確認され、また、細胞の核染色により細胞周期の変化を確認した。細胞凝集体の形成後、幹細胞関連遺伝子の発現率は増大し、合成期であるS期が有意的に増大することを観察した。血管形成及び成長関連サイトカインも有意的に増大することを確認した。
Claims (8)
- ヒト幹細胞を培養して細胞凝集体(sphere)を形成する工程(a)と、
上記細胞凝集体を、該細胞凝集体に含まれていない細胞から分離する工程(b)とを備えているヒト幹細胞から高活性幹細胞を分離する方法。 - 請求項1において、
上記工程(a)は、ウシ血清を含まない培地と低接着ペトリ皿とを用いて行われる方法。 - 請求項2において、
上記ウシ血清を含まない培地は、ウシ血清を含まないDMEM(Dulbecco’s Modified Eagel’s Medium)と20%の血清代替物(Serum Replacement, SR)とを含む培地である方法。 - 請求項1において、
上記工程(a)は、ヒト幹細胞をタンパク質分解酵素により処理した後、処理された細胞を、ウシ血清を含まないDMEMと20%の血清代替物とを含む培地において、20時間以上且つ28時間以下の間、低接着ペトリ皿を用いて浮遊培養させることによって行われる方法。 - 請求項1において、
上記幹細胞は、間葉系幹細胞である方法。 - 請求項1乃至5のいずれかの方法によって分離された高活性幹細胞。
- 請求項6の高活性幹細胞を含む脂肪細胞、骨細胞、軟骨細胞、筋細胞、神経細胞又は心筋細胞形成に用いられる細胞治療剤。
- ウシ血清を含まないDMEMと20%の血清代替物とを含む、ヒト幹細胞から高活性幹細胞を分離するための培地。
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KR10-2008-0073383 | 2008-07-28 | ||
KR1020080073383A KR101175175B1 (ko) | 2008-07-28 | 2008-07-28 | 인간 줄기세포에서 고활성 줄기세포를 분리하는 방법 및상기 방법에 의해 분리된 고활성 줄기 세포 |
PCT/KR2009/003954 WO2010013906A2 (ko) | 2008-07-28 | 2009-07-17 | 인간 줄기세포에서 고활성 줄기세포를 분리하는 방법 및 상기 방법에 의해 분리된 고활성 줄기 세포 |
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WO2017188370A1 (ja) * | 2016-04-27 | 2017-11-02 | 株式会社Cells Power | 活性化幹細胞製造方法 |
JP2017200471A (ja) * | 2016-04-27 | 2017-11-09 | 株式会社Cells Power | 活性化幹細胞製造方法 |
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WO2011126264A2 (ko) * | 2010-04-05 | 2011-10-13 | 서울대학교병원 | 인간 줄기세포의 활성을 증가시키는 방법 |
WO2011126177A1 (ko) * | 2010-04-05 | 2011-10-13 | 서울대학교병원 | 인간 줄기세포의 활성을 증가시키는 방법 |
KR101677293B1 (ko) * | 2010-04-16 | 2016-11-17 | 서울대학교병원 | 줄기세포의 활성을 증가시키는 방법 및 상기 방법에 의해 제조된 고활성 줄기 세포 |
CN111727374B (zh) | 2017-10-13 | 2024-02-20 | 纳米智能生物医学工程有限公司 | Grp78衍生肽用于鉴定高效干细胞 |
EP3696546A4 (en) * | 2017-10-13 | 2021-06-09 | Nibec Co., Ltd. | HIGHLY EFFICIENT STEM CELL SELECTION PROCESS, USING A GRP78 PROTEIN MARKER |
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US7011828B2 (en) * | 2000-03-14 | 2006-03-14 | Es Cell International Pte. Ltd. | Implanting neural progenitor cells derived for human embryonic stem cells |
JPWO2003027281A1 (ja) * | 2001-09-20 | 2005-01-06 | 協和醗酵工業株式会社 | 骨格筋間質由来多分化能幹細胞 |
CA2558520C (en) * | 2004-03-05 | 2015-02-24 | John E. Davies | Serum-free suspension culture system for mesenchymal progenitor cells |
KR100593397B1 (ko) | 2004-10-27 | 2006-06-28 | 한국원자력연구소 | 중배엽 줄기세포 및/또는 p 물질을 함유하는 상처 치유또는 상처 치유 촉진제, 또는 세포 치료제 |
CN100425694C (zh) | 2005-04-15 | 2008-10-15 | 北京大学 | 诱导胚胎干细胞向胰腺细胞分化的方法 |
KR100679642B1 (ko) * | 2005-11-16 | 2007-02-06 | 주식회사 알앤엘바이오 | 인간 지방조직 유래 다분화능 줄기세포 및 이를 함유하는세포치료제 |
KR100871984B1 (ko) * | 2006-04-12 | 2008-12-05 | 주식회사 알앤엘바이오 | 태반 조직 유래 다능성 줄기세포 및 이를 함유하는세포치료제 |
EP1845154A1 (en) * | 2006-04-12 | 2007-10-17 | RNL Bio Co., Ltd. | Multipotent stem cells derived from placenta tissue and cellular therapeutic agents comprising the same |
-
2008
- 2008-07-28 KR KR1020080073383A patent/KR101175175B1/ko active IP Right Grant
-
2009
- 2009-07-17 CA CA2732025A patent/CA2732025A1/en not_active Abandoned
- 2009-07-17 CN CN2009801297934A patent/CN102112599A/zh active Pending
- 2009-07-17 JP JP2011521015A patent/JP2011529340A/ja not_active Withdrawn
- 2009-07-17 US US13/056,279 patent/US20110142809A1/en not_active Abandoned
- 2009-07-17 MX MX2011000993A patent/MX2011000993A/es not_active Application Discontinuation
- 2009-07-17 WO PCT/KR2009/003954 patent/WO2010013906A2/ko active Application Filing
- 2009-07-17 EP EP09803111A patent/EP2322602A4/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017188370A1 (ja) * | 2016-04-27 | 2017-11-02 | 株式会社Cells Power | 活性化幹細胞製造方法 |
JP2017200471A (ja) * | 2016-04-27 | 2017-11-09 | 株式会社Cells Power | 活性化幹細胞製造方法 |
CN109072188A (zh) * | 2016-04-27 | 2018-12-21 | 金太郎细胞力量株式会社 | 活性化干细胞制造方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2010013906A9 (ko) | 2010-07-15 |
EP2322602A2 (en) | 2011-05-18 |
KR20100012153A (ko) | 2010-02-08 |
MX2011000993A (es) | 2011-06-06 |
WO2010013906A3 (ko) | 2010-05-14 |
CA2732025A1 (en) | 2010-02-04 |
US20110142809A1 (en) | 2011-06-16 |
WO2010013906A2 (ko) | 2010-02-04 |
EP2322602A4 (en) | 2012-08-01 |
CN102112599A (zh) | 2011-06-29 |
KR101175175B1 (ko) | 2012-08-20 |
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