JP4576539B2 - 細胞培養器具及びこれを用いた細胞培養方法 - Google Patents
細胞培養器具及びこれを用いた細胞培養方法 Download PDFInfo
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- JP4576539B2 JP4576539B2 JP2009532166A JP2009532166A JP4576539B2 JP 4576539 B2 JP4576539 B2 JP 4576539B2 JP 2009532166 A JP2009532166 A JP 2009532166A JP 2009532166 A JP2009532166 A JP 2009532166A JP 4576539 B2 JP4576539 B2 JP 4576539B2
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Classifications
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- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Description
Hiroshi Kurosawa, Journal of Bioscience and Bioengineering, Vol.103,No.5, 389-398,2007 Celeste H. Campbell et al., The FASEBJournal Vol. 16 1917-1927,2002. Scott W. Allen et al., DRUG METABOLISM AND DISPOSITION Vol.29,No.8,1074-1079, 2001.
図1〜図4に示すような器具1を用い、播種工程S100において、装着状態の器具1に細胞を播種した場合と、分離状態の器具1に細胞を播種した場合と、についてマイクロウェル群20に細胞を保持できる効率を比較した。すなわち、PMMA製の平板(24mm×24mm、厚さ400μm)の表面のうち、10mm×10mmの矩形範囲内に、マシニングセンタ(卓上型NC微細加工機、株式会社ピーエムティー製)を用いた穿孔加工処理により、直径300μm、深さ200μmの円形のマイクロウェル21を1020個形成した。この複数のマイクロ21ウェルは、互いにその開口部24及び底面22の円の中心間距離が330μmとなるように規則的に配置した。次に、スパッタリング装置(E―1030、日立株式会社製)を用いたスパッタリング処理を施すことにより、その表面にプラチナ(Pt)の薄膜(厚さ6nm)を形成した。
上述の実施例1と同様に作製された器具1を用い、播種工程S100において、装着状態の器具1に細胞を播種した場合と、分離状態の器具1に細胞を播種した場合と、について複数のマイクロウェル21の各々に保持される細胞の数のばらつきを比較した。
上述の実施例1と同様に作製された器具1を用いて、各マイクロウェル21内で細胞組織体を形成した。そして、培養工程S200において、装着状態の器具1に保持された当該細胞組織体を顕微鏡観察した場合と、分離状態の器具1に保持された細胞組織体を顕微鏡観察した場合と、について観察の明瞭さを比較した。
上述の実施例1と同様の方法により、各マイクロウェル21の底面22が細胞非接着性である2種類の器具1(以下、「第一の器具1」、「第二の器具1」という)を作製した。第一の器具1においては、上面11のうち10mm×10mmの矩形範囲内に、開口部24及び底面22が直径300μmの円形であり、深さが200μmであり、中心間距離が440μmで規則的に配置された572個のマイクロウェル21を含む一つのマイクロウェル群20を形成した。また、第二の器具1においては、上面11のうち10mm×10mmの矩形範囲内に、開口部24及び底面22が直径400μmの円形であり、深さが260μmであり、中心間距離が440μmで規則的に配置された572個のマイクロウェル21を含む一つのマイクロウェル群20を形成した。そして、第一の器具1の各マイクロウェル21内及び第二の器具1の各マイクロウェル21内で細胞組織体を形成した。
まず、PMMA製の平板(24mm×24mm、厚さ200μm)の表面のうち、10mm×10mmの矩形範囲内に、マシニングセンタ(卓上型NC微細加工機、株式会社ピーエムティー製)を用いた穿孔加工処理により、直径300μmの円形の貫通孔を672個形成した。この円形貫通孔は、互いにその中心間距離が400μmとなるように規則的に配置した。次に、この円形貫通孔が設けられたPMMA平板の一方側の表面に、貫通孔を設けていない別体に形成されたPMMA製の平板(24mm×24mm、厚さ200μm)を熱圧着処理(106℃、2時間)によって貼り付けた。
図6〜図9に示すような4つのマクロウェル50a〜50dが形成された器具1を作製し、当該4つのマクロウェル50a〜50dの各々に互いに独立に溶液を保持可能であることを確認した。すなわち、上述の実施例1の場合と同様の方法により、PMMA製の平板(24mm×24mm、厚さ700μm)の表面のうち、互いに離間した4つの矩形の範囲(6mm×6mm)の各々に、直径300μm、深さ200μmの円形のマイクロウェル21を中心間距離330μmにて378個形成することにより、図6〜図9に示すような4つのマイクロウェル群20a〜20dが形成された基部材2を作製した。
上述の実施例1と同様に作製された器具1を用いて、図5に示す辺縁ウェル21iと枠部材3との距離Dと、当該辺縁ウェル21i及び中央ウェル21iiで形成される細胞組織体のサイズと、の関係を検討した。
Claims (13)
- 細胞を保持可能な複数の第一のウェルを含むウェル群が形成された基部材と、
前記ウェル群に対応する貫通穴が形成されるとともに、前記基部材に着脱可能に構成され、前記基部材に取り付けられた状態において、前記貫通穴の内壁が前記ウェル群の周囲に立設されて、溶液を保持可能な第二のウェルを形成する枠部材と、
を備えた
ことを特徴とする細胞培養器具。 - 前記第一のウェルの開口部の面積は、100〜1×106μm2の範囲である
ことを特徴とする請求項1に記載の細胞培養器具。 - 前記基部材には、複数の前記ウェル群が互いに離間して形成され、
前記枠部材には、その各々が前記複数のウェル群のうち一つに対応する前記貫通穴が少なくとも一つ形成されている
ことを特徴とする請求項1又は2に記載の細胞培養器具。 - 前記枠部材には、その各々が前記複数のウェル群のうち一つに対応する前記貫通穴が複数形成され、
前記枠部材が前記基部材に取り付けられた状態において、前記複数の貫通穴の各々の内壁が対応する一つの前記ウェル群の周囲に立設されて複数の前記第二のウェルが形成される
ことを特徴とする請求項3に記載の細胞培養器具。 - 前記基部材と前記枠部材とには、対応する位置に互いに結合可能な第一結合部と第二結合部とがそれぞれ形成されている
ことを特徴とする請求項1乃至4のいずれかに記載の細胞培養器具。 - 前記基部材には、複数の前記ウェル群が互いに離間して形成され、
前記第一結合部は、前記複数のウェル群の各々の周囲に形成されている
ことを特徴とする請求項5に記載の細胞培養器具。 - 前記第一結合部及び前記第二結合部は、一方が凸形状に形成され、他方が凹形状に形成されて、互いに嵌合可能となっている
ことを特徴とする請求項5又は6に記載の細胞培養器具。 - 前記基部材と、前記基部材に取り付けられた前記枠部材と、を一体的に保持し、前記基部材及び前記枠部材のそれぞれの外周の少なくとも一部に当接して前記基部材及び前記枠部材の相対的な位置を固定する当接部を有する保持部材をさらに備えた
ことを特徴とする請求項1乃至7のいずれかに記載の細胞培養器具。 - 細胞を保持可能な複数の第一のウェルを含むウェル群が形成された基部材に着脱可能に構成され、
前記ウェル群に対応する貫通穴が形成され、
前記基部材に取り付けられることによって、前記貫通穴の内壁が前記ウェル群の周囲に立設されて、溶液を保持可能な第二のウェルを形成する
ことを特徴とする細胞培養器具用枠部材。 - 請求項1乃至8のいずれかに記載の細胞培養器具を用いる
ことを特徴とする細胞培養方法。 - 請求項1乃至8のいずれかに記載の細胞培養器具を用い、
前記枠部材を前記基部材に取り付けた状態で、前記細胞培養器具のうち前記第二のウェルに細胞を含む溶液を注入することによって、前記第二のウェルに対応する一つの前記ウェル群に前記細胞を播種する工程と、
前記基部材から前記枠部材を取り外して、前記ウェル群で前記細胞を培養する工程と、
を含む
ことを特徴とする請求項10に記載の細胞培養方法。 - 請求項1乃至8のいずれかに記載の細胞培養器具を用い、
前記ウェル群で細胞を培養する工程と、
前記基部材に前記枠部材を取り付けた状態で、前記細胞培養器具のうち前記第二のウェルに所定の溶液を注入することによって、前記第二のウェルに対応する一つの前記ウェル群の細胞に前記所定の溶液を接触させる工程と、
を含む
ことを特徴とする請求項10又は11に記載の細胞培養方法。 - 請求項4に記載の細胞培養器具を用い、
前記複数のウェル群で細胞を培養する工程と、
前記基部材に前記枠部材を取り付けた状態で、前記細胞培養器具のうち前記複数の第二のウェルに互いに異なる溶液を注入することによって、前記複数の第二のウェルに対応する前記複数のウェル群の細胞に、互いに異なる前記溶液を接触させる工程と、
を含む
ことを特徴とする請求項10乃至12のいずれかに記載の細胞培養方法。
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EP2189519A4 (en) | 2012-04-25 |
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US20110003389A1 (en) | 2011-01-06 |
CN101815782B (zh) | 2014-02-05 |
JPWO2009034927A1 (ja) | 2010-12-24 |
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