JP7394367B2 - 気体の細胞毒性評価方法 - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/48742—Determining urea by measuring the volume of a gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5008—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics
- G01N33/5014—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing or evaluating the effect of chemical or biological compounds, e.g. drugs, cosmetics for testing toxicity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
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Description
項1.
気体を細胞培養液に溶解させる気体溶解工程、
及び、細胞機能を測定する細胞評価工程をこの順に有することを特徴とする、気体による細胞への毒性評価方法。
項2.
前記気体溶解工程は、
前記細胞培養液をpH7.1~7.7、及び温度35~39℃に維持して実施される、項1に記載の方法。
項3.
前記気体溶解工程は、
前記気体を前記細胞培養液の表面に接触させ、培養液中に溶解させることにより実施される、項1又は2に記載の方法。
項4.
前記細胞は、哺乳類由来細胞である、項1~3の何れかに記載の方法。
ミトコンドリアにおける酸素消費速度の変化は、例えば、酸素感受性プローブの発光強度を測定することにより得ることが出来る。カルシウムイオン流動量の変化は、例えばカルシウムイオン感受性プローブの発光強度を測定することにより得ることができる。膜電位の変化は、例えば、膜電位感受性プローブの発光強度を測定することにより得ることができる。
ヒトiPS細胞由来心筋細胞(iCell cardiomyocytes2, CDI社製)を96well half area プレートに、40,000cells/wellの密度で播種し、7~10日間、インキュベーター内で培養した。その後、上記心筋細胞にCa指示薬(EarlyTox Cardiotoxicity Kit, Molecular Devices社製)を30μL/wellずつ添加した。その後、密閉容器内に、クロロジフルオロメタン(実施例)、ジフルオロメタン(参考例)を、細胞培養液表面にそれぞれ流速50mL/minという条件でフローした。その際、細胞培養液は、pH7.4、温度37℃、インキュベーター内の気圧101.3kPaに維持されていた。フロー開始時点、及びフロー開始から10分後の時点における心筋細胞の拍動数を、共焦点定量イメージサイトメーター(CQ1、横河電機社製)により蛍光測定を行い、計測した。
Claims (4)
- 気体を細胞培養液に溶解させる気体溶解工程、
及び、細胞機能を測定する細胞評価工程をこの順に有し、
前記気体溶解工程では、前記気体の流入口及び流出口をそれぞれ少なくとも1つ有する容器に開放した細胞培養容器を設置し、直接的に前記気体を細胞に曝露することなくフローさせることを特徴とする、気体による心筋細胞、肝臓細胞、腎臓細胞、脳細胞、神経細胞、膵臓細胞、脾臓細胞、血液細胞及び骨髄細胞からなる群より選択される少なくとも一種の細胞への毒性評価方法。 - 前記気体溶解工程は、
前記細胞培養液をpH7.1~7.7、及び温度35~39℃に維持して実施される、請求項1に記載の方法。 - 前記細胞は、哺乳類由来細胞である、請求項1又は2に記載の方法。
- 前記細胞は、心筋細胞である、請求項1~3の何れか一項に記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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JP2018122876A JP7394367B2 (ja) | 2018-06-28 | 2018-06-28 | 気体の細胞毒性評価方法 |
EP19826191.9A EP3816298A4 (en) | 2018-06-28 | 2019-06-26 | PROCEDURE FOR DETERMINING THE CYTOTOXICITY OF GAS |
US17/255,798 US20210148887A1 (en) | 2018-06-28 | 2019-06-26 | Method for evaluating cytotoxicity of gas |
PCT/JP2019/025400 WO2020004470A1 (ja) | 2018-06-28 | 2019-06-26 | 気体の細胞毒性評価方法 |
JP2022154699A JP2022173420A (ja) | 2018-06-28 | 2022-09-28 | 気体の細胞毒性評価方法 |
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JP2018122876A JP7394367B2 (ja) | 2018-06-28 | 2018-06-28 | 気体の細胞毒性評価方法 |
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JP7394367B2 true JP7394367B2 (ja) | 2023-12-08 |
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JP2022154699A Pending JP2022173420A (ja) | 2018-06-28 | 2022-09-28 | 気体の細胞毒性評価方法 |
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US (1) | US20210148887A1 (ja) |
EP (1) | EP3816298A4 (ja) |
JP (2) | JP7394367B2 (ja) |
WO (1) | WO2020004470A1 (ja) |
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JP6944167B2 (ja) | 2018-07-25 | 2021-10-06 | ダイキン工業株式会社 | ガス濃度予測方法 |
JP7103738B2 (ja) * | 2020-01-06 | 2022-07-20 | 株式会社大一商会 | 遊技機 |
JP2021162598A (ja) * | 2020-03-31 | 2021-10-11 | ダイキン工業株式会社 | 検知ユニット、収容容器、検知装置 |
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US6998249B1 (en) | 1999-09-27 | 2006-02-14 | Pharmacia & Upjohn Company | Toxicity screening method |
US6982152B2 (en) * | 2002-04-17 | 2006-01-03 | Promega Corporation | Cytotoxicity assay |
CN101580869B (zh) * | 2009-07-01 | 2011-09-21 | 中国烟草总公司郑州烟草研究院 | 卷烟主流烟气基因毒性测定方法 |
JP2013039099A (ja) * | 2011-08-19 | 2013-02-28 | Koichi Imai | 細胞毒性測定用チャンバー、該チャンバー保存用コンテナ、及び細胞毒性測定用キット |
CN107121553B (zh) * | 2017-03-16 | 2019-08-27 | 国家烟草质量监督检验中心 | 一种气-液界面暴露系统联合高内涵技术定量检测1,3-丁二烯致细胞dna损伤的方法 |
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- 2019-06-26 US US17/255,798 patent/US20210148887A1/en active Pending
- 2019-06-26 WO PCT/JP2019/025400 patent/WO2020004470A1/ja active Application Filing
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2022
- 2022-09-28 JP JP2022154699A patent/JP2022173420A/ja active Pending
Non-Patent Citations (2)
Title |
---|
国立研究開発法人国立環境研究所[online]、大気汚染物質を細胞に直接曝露する気液界面細胞曝露装置、公開日:2013年10月31日、[検索日:2021年12月18日]、<https://www.nies.go.jp/kanko/news/32/32-4/32-4-03.html> |
環境化学、1996、Vol.6、No.2、p.217-224 |
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JP2022173420A (ja) | 2022-11-18 |
JP2020000101A (ja) | 2020-01-09 |
US20210148887A1 (en) | 2021-05-20 |
WO2020004470A1 (ja) | 2020-01-02 |
EP3816298A4 (en) | 2022-03-16 |
EP3816298A1 (en) | 2021-05-05 |
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