JP7318019B2 - 健康な人の免疫細胞培養液を用いたnk細胞の含有量を増進させる方法 - Google Patents
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Description
1-1:PBMC(末梢血液単核球)分離
25歳の診断された疾病のない健康な人の血液50mlを、DPBSを用いて1(血液):1(PBS)に希釈し、希釈した血液20mlを、15mlのフィコール(Ficoll)(GE Healthcare)が含まれているチューブに添加した後、400gで45分間遠心分離し、バフィーコート(Buffy coat)層に分布している細胞を回収し、回収した細胞を40mlのPBSと混合した後、400g、5分間遠心分離を行い、上澄液を除去後に、分離したPBMC細胞数を確認した。
P0培養:1-1で分離したPBMCを均等に分け、2個のT75フラスコでKBM501培地(Kohijin bio,cat.No.1625015)を用いて培養したが、培養時に、2個のフラスコともに0.025%のCD3抗体(BD Pharmingen,Cat.No566685)とCD56抗体(BD Pharmingen,Cat.No559043)を添加し、いずれか一方のフラスコ(CD16+フラスコ)には0.15%のCD16抗体(BD Pharmingen,Cat.No555404)を添加し、培養1日目及び3日目にCD16抗体をさらに添加した。
2-1:PBMC(末梢血液単核球)分離
満39歳の脳腫瘍診断患者の血液50mlをDPBSを用いて1(血液):1(PBS)に希釈し、希釈した血液20mlを、15mlのフィコールが含まれているチューブに添加した後、400g、5分間遠心分離し、バフィーコート層に分布している細胞を回収し、回収した細胞を40mlのPBSと混合した後、400g、5分間遠心分離を行い、上澄液を除去後に、分離したPBMC細胞数を確認した。
P0培養:2-1で分離したPBMCを均等に分け、2個のT75フラスコでKBM501培地(Kohijin bio,cat.No.1625015)を用いて培養したが、培養時に、2個のフラスコともに0.025%のCD3抗体(BD Pharmingen,Cat.No566685)及び0.075%のCD56抗体(BD Pharmingen,Cat.No559043)を添加し、いずれか一方のフラスコ(CD16+フラスコ)には0.15%のCD16抗体(BD Pharmingen,Cat.No555404)を添加し、培養1日目及び3日目に0.015%のCD16抗体をさらに添加した。
実験群は、実施例2の方法で培養した免疫細胞であり、対照群としては、健康な人の免疫細胞培養液を添加しないで培養した免疫細胞を使用した。
実験群は、実施例2の方法で培養した健康な人の免疫細胞培養液を添加して得られた免疫細胞であり、対照群としては、健康な人の免疫細胞培養液を添加しないで培養した免疫細胞を使用した。
Claims (2)
- 癌患者由来末梢血液単核球(PBMC)を、CD3抗体0.025~0.05%及び、正常人由来末梢血液単核球(PBMC)を1~3継代で培養し、細胞を除去した培養液5~30%を含む培地で培養する工程を含む、NK細胞含有量を増進させる方法であって、
ここで、前記正常人由来末梢血液単核球(PBMC)を1~3継代で培養し細胞を除去した培養液は、(i)正常人由来末梢血液単核球(PBMC)を抗CD3抗体、抗CD16抗体及び抗CD56抗体を含む培地で培養した培養液及び(ii)正常人由来末梢血液単核球(PBMC)を抗CD3抗体及び抗CD56抗体を含む培地で培養した培養液を混合した培養液であることを特徴とする、前記方法。 - 前記正常人は、満16~40歳の疾病のない状態の人であることを特徴とする、請求項1に記載の方法。
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