JPH10201470A5 - - Google Patents

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Publication number
JPH10201470A5
JPH10201470A5 JP1997024517A JP2451797A JPH10201470A5 JP H10201470 A5 JPH10201470 A5 JP H10201470A5 JP 1997024517 A JP1997024517 A JP 1997024517A JP 2451797 A JP2451797 A JP 2451797A JP H10201470 A5 JPH10201470 A5 JP H10201470A5
Authority
JP
Japan
Prior art keywords
cells
cell
filter
liquid inlet
removal rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1997024517A
Other languages
Japanese (ja)
Other versions
JP4412621B2 (en
JPH10201470A (en
Filing date
Publication date
Priority claimed from JP02451797A external-priority patent/JP4412621B2/en
Priority to JP02451797A priority Critical patent/JP4412621B2/en
Application filed filed Critical
Priority to AU55763/98A priority patent/AU731766B2/en
Priority to US09/341,879 priority patent/US6268119B1/en
Priority to CNB98802828XA priority patent/CN1330752C/en
Priority to CA2278208A priority patent/CA2278208C/en
Priority to PCT/JP1998/000244 priority patent/WO1998032840A1/en
Priority to AT98900701T priority patent/ATE509094T1/en
Priority to EP98900701A priority patent/EP0987325B1/en
Publication of JPH10201470A publication Critical patent/JPH10201470A/en
Priority to US09/871,645 priority patent/US20010036624A1/en
Priority to US09/947,374 priority patent/US20020031757A1/en
Priority to US10/373,704 priority patent/US20030180705A1/en
Priority to US10/834,191 priority patent/US20040224300A1/en
Publication of JPH10201470A5 publication Critical patent/JPH10201470A5/ja
Publication of JP4412621B2 publication Critical patent/JP4412621B2/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【0008】
【実施例】
以下に実施例により本発明をより詳細に説明するが、本発明はこれらにより限定されるものではない。
【実施例1】
細胞分離器の作製
容器寸法41×41×18mmで液体流出口と液体流入口を対角線上にもつポリカーボネート製容器の入口側に平均繊維径12μmのポリエステル不織布25枚を、出口側に平均繊維径2.3μmのポリエステル不織布12枚を充填した。なお、本フィルターの充填密度は0.2g/cm であった。
また、このフィルターに血小板通過性を付与する目的で、親水性ポリマーのコーティングを行った。即ち、ヒドロキシエチルメタクリレート・ジメチルアミノエチルメタクリレート共重合体の1%エタノール溶液を該フィルターの液体流入口から通液した後、窒素ガスを通して乾燥させた。
細胞分離操作
で作製した細胞分離器に末梢全血50mlを液体流入口から落差(流速約5ml/分)により通液した後、フィルター内に残存する赤血球、血小板を洗流する目的で生理食塩水30mlを通液した。その後、3.5%ポリビニルピロリドン(平均分子量36万)水溶液30mlを液体流出口からポンプを用いて100ml/分で通液し、液体流入口から細胞を回収した。なお、本回収液の粘度は20.3mPa・sであった。本細胞分離操作での白血球回収率、赤血球除去率、血小板除去率はそれぞれ75%、99%、98%であった。なお、回収率、除去率の算出方法は以下のとおりである。
回収率(%)=100×(分離後細胞数/分離前細胞数)
除去率(%)=100−100×(分離後細胞数/分離前細胞数)
[0008]
[Example]
The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.
Example 1
Preparation of a single- cell separator: A polycarbonate container measuring 41 × 41 × 18 mm with a liquid inlet and outlet diagonally aligned was packed with 25 sheets of polyester nonwoven fabric with an average fiber diameter of 12 μm on the inlet side and 12 sheets of polyester nonwoven fabric with an average fiber diameter of 2.3 μm on the outlet side. The packing density of this filter was 0.2 g/ cm3 .
To allow platelets to pass through the filter, the filter was coated with a hydrophilic polymer. A 1% ethanol solution of hydroxyethyl methacrylate-dimethylaminoethyl methacrylate copolymer was passed through the filter's liquid inlet, and then the filter was dried by passing nitrogen gas through it.
2 cell separation procedure
50 ml of peripheral whole blood was passed through the cell separator prepared in 1 via the liquid inlet at a flow rate of approximately 5 ml/min. Then, 30 ml of saline was passed through the filter to wash out any remaining red blood cells and platelets. Subsequently, 30 ml of a 3.5% aqueous solution of polyvinylpyrrolidone (average molecular weight 360,000) was pumped through the liquid outlet at 100 ml/min, and cells were recovered from the liquid inlet. The viscosity of this recovered solution was 20.3 mPa·s. The white blood cell recovery rate, red blood cell removal rate, and platelet removal rate in this cell separation procedure were 75%, 99%, and 98%, respectively. The recovery rate and removal rate were calculated as follows:
Recovery rate (%) = 100 × (number of cells after separation/number of cells before separation)
Removal rate (%) = 100-100 x (number of cells after separation/number of cells before separation)

【0012】
【実施例5】
細胞分離器の作製
容器寸法41×41×18mmで液体流出口と液体流入口を対角線上にもつポリカーボネート製容器の入口側に平均繊維径12μmのポリエステル不織布12枚を、出口側に平均繊維径2.3μmのマウス抗ヒトCD34モノクローナル抗体固定ポリスチレン不織布25枚を充填した。本フィルターの充填密度は0.2g/cm であった。
なお、マウス抗ヒトCD34モノクローナル抗体のポリスチレンへの固定は特開平2−261833号公報で提案されている公知のハロアセトアミド法にて行った。
細胞分離操作
で作製した細胞分離器に臍帯全血50mlを液体流入口から落差(流速約5ml/分)で通液した後、フィルター内に残存する赤血球、血小板、CD34陰性細胞を洗流する目的で生理食塩水30mlを通液した。その後、市販の凍結保存剤(極東製薬製「CP−1」)に同凍結保存剤の使用説明書に従い、25%ヒト血清アルブミン溶液を添加したもの(12%ヒドロキシエチルデンプン、10%ジメチルスルホキシド、8%ヒト血清アルブミン)を液体流出口からポンプを用いて100ml/分で通液し、液体流入口から細胞を回収した。なお、本回収液の粘度は19.0mPa・sであった。本細胞分離操作でのCD34陽性細胞回収率、CD34陽性細胞純度、赤血球除去率、血小板除去率はそれぞれ80%、93%、98%、98%であった。なお、本回収液で回収された細胞は前述の凍結保存剤に添付されていたプロトコールにより凍結保存が可能であった。
[0012]
Example 5
Preparation of a cell separator: A polycarbonate vessel measuring 41 x 41 x 18 mm with a liquid inlet and outlet diagonally aligned was packed with 12 sheets of polyester nonwoven fabric with an average fiber diameter of 12 μm on the inlet side and 25 sheets of mouse anti-human CD34 monoclonal antibody-immobilized polystyrene nonwoven fabric with an average fiber diameter of 2.3 μm on the outlet side. The packing density of this filter was 0.2 g/ cm3 .
The mouse anti-human CD34 monoclonal antibody was immobilized on polystyrene by the known haloacetamide method proposed in Japanese Patent Application Laid-Open No. 2-261833.
2 cell separation procedure
50 ml of umbilical cord whole blood was passed through the cell separator prepared in 1 at a flow rate of approximately 5 ml/min from the liquid inlet, followed by 30 ml of saline to wash away remaining red blood cells, platelets, and CD34-negative cells. Subsequently, a commercially available cryopreservative (Kyokuto Pharmaceutical's "CP-1") containing 25% human serum albumin solution (12% hydroxyethyl starch, 10% dimethyl sulfoxide, 8% human serum albumin) was pumped through the liquid outlet at 100 ml/min, and cells were recovered from the liquid inlet. The viscosity of the recovered solution was 19.0 mPa·s. The CD34-positive cell recovery rate, CD34-positive cell purity, red blood cell removal rate, and platelet removal rate in this cell separation procedure were 80%, 93%, 98%, and 98%, respectively. The cells recovered with this recovery solution could be cryopreserved according to the protocol attached to the aforementioned cryopreservation agent.

JP02451797A 1997-01-24 1997-01-24 Cell separation method Expired - Lifetime JP4412621B2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
JP02451797A JP4412621B2 (en) 1997-01-24 1997-01-24 Cell separation method
AU55763/98A AU731766B2 (en) 1997-01-24 1998-01-22 Cell separation method
US09/341,879 US6268119B1 (en) 1997-01-24 1998-01-22 Method for separating cells
CNB98802828XA CN1330752C (en) 1997-01-24 1998-01-22 cell isolation method
CA2278208A CA2278208C (en) 1997-01-24 1998-01-22 Cell separation method
PCT/JP1998/000244 WO1998032840A1 (en) 1997-01-24 1998-01-22 Method for separating cells
AT98900701T ATE509094T1 (en) 1997-01-24 1998-01-22 METHOD OF CELL SEPARATION
EP98900701A EP0987325B1 (en) 1997-01-24 1998-01-22 Method for separating cells
US09/871,645 US20010036624A1 (en) 1997-01-24 2001-06-04 Cell separation method
US09/947,374 US20020031757A1 (en) 1997-01-24 2001-09-07 Method of regenerating a tissue
US10/373,704 US20030180705A1 (en) 1997-01-24 2003-02-27 Method of regenerating blood vessels
US10/834,191 US20040224300A1 (en) 1997-01-24 2004-04-29 Method for separating nucleated cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02451797A JP4412621B2 (en) 1997-01-24 1997-01-24 Cell separation method

Publications (3)

Publication Number Publication Date
JPH10201470A JPH10201470A (en) 1998-08-04
JPH10201470A5 true JPH10201470A5 (en) 2004-10-21
JP4412621B2 JP4412621B2 (en) 2010-02-10

Family

ID=12140375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP02451797A Expired - Lifetime JP4412621B2 (en) 1997-01-24 1997-01-24 Cell separation method

Country Status (1)

Country Link
JP (1) JP4412621B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010537624A (en) * 2007-03-28 2010-12-09 サーモジェネシス コーポレーション Composition of stem and progenitor cells recovered from bone marrow or umbilical cord blood, system and method for preparing them
JP6162359B2 (en) * 2009-06-30 2017-07-12 株式会社カネカ Blood component separation system, separation material
US11249077B2 (en) 2016-09-30 2022-02-15 Arkray, Inc. Method for magnetically labeling particles and labeling apparatus
JP2025064733A (en) * 2023-10-06 2025-04-17 キヤノン株式会社 Particle separation device and particle separation method

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