JP2018050551A - 造血幹細胞の分化促進剤 - Google Patents
造血幹細胞の分化促進剤 Download PDFInfo
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Abstract
Description
(1)グルタミン酸、ロイシン、バリン、スレオニン及びグリシンから選択される1種又は2種以上のアミノ酸を有効成分として含有する造血幹細胞の分化促進剤。
(2)(1)に記載の造血幹細胞の分化促進剤の存在下で造血幹細胞を培養することを特徴とする、造血幹細胞の分化促進方法。
(3)(1)に記載の造血幹細胞の分化促進剤の存在下で造血幹細胞を培養する工程を含む、血液細胞の製造方法。
本発明の造血幹細胞の分化促進剤は、グルタミン酸、ロイシン、バリン、スレオニン及びグリシンから選択される1種又は2種以上のアミノ酸を有効成分とする。
未分化状態で培養したA-6細胞(マウス造血幹細胞)(理化学研究所)を用いて、グルタミン酸、ロイシン、バリン、スレオニン、グリシンの造血幹細胞に対する分化促進効果の評価試験を行った。細胞培養用培地には細胞の増殖や生存のために、元々一定量の各種アミノ酸が配合されている。例えば、本試験においてA-6細胞の培養の基礎培地として用いたDMEM/F12(Gibco社製)には、グルタミン酸(0.05mM)、ロイシン(0.45mM)、バリン(0.45mM)、スレオニン(0.45mM)、グリシン(0.25mM)が含まれている。そこで、本試験では、表1に示すように、基礎培地(条件1)における上記5種のアミノ酸のうちの1種のアミノ酸の濃度を変化させた培地(条件2〜16)、ならびに上記5種のアミノ酸の濃度をすべて同時に増加させた培地(条件17)を調製し、造血幹細胞の分化に及ぼす影響を解析した。なお、各条件の培地には、ウシ胎児血清(20%;Sigma社製)、G-CSF(10ng/mL;Pepro Tech社製)、IL-3(10ng/mL;Pepro Tech社製)、IL-6(100ng/mL;Pepro Tech社製)、SCF(100ng/mL;Pepro Tech社製)、EPO(25U/mL;Pepro Tech社製)、Insulin(10ng/mL;SIGMA社製)、Transferrin(10ng/mL;SIGMA社製)、2-メルカプトエタノール(100μM;Gibco社製)を添加した。
フォワードプライマー:5'-ACCTGCTCGCACCACTGAA-3'(配列番号1)
リバースプライマー:5'-CCTGGATGATATGTGGTCTCTGAAG-3'(配列番号2)
フォワードプライマー:5'-CCGTGTTCCTACCCCCAAT-3'(配列番号3)
リバースプライマー:5'-TGCCTGCTTCACCACCTTCT-3'(配列番号4)
Claims (3)
- グルタミン酸、ロイシン、バリン、スレオニン及びグリシンから選択される1種又は2種以上のアミノ酸を有効成分として含有する造血幹細胞の分化促進剤。
- 請求項1に記載の造血幹細胞の分化促進剤の存在下で造血幹細胞を培養することを特徴とする、造血幹細胞の分化促進方法。
- 請求項1に記載の造血幹細胞の分化促進剤の存在下で造血幹細胞を培養する工程を含む、血液細胞の製造方法。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6112622A (ja) * | 1984-06-29 | 1986-01-21 | Kuraray Co Ltd | 造血幹細胞の分化増殖促進剤 |
WO2007029730A1 (ja) * | 2005-09-06 | 2007-03-15 | Meiji Dairies Corporation | 老人性貧血を防止又は治療するためのアミノ酸組成物 |
WO2009066562A1 (ja) * | 2007-11-20 | 2009-05-28 | Meiji Dairies Corporation | 赤血球系幹細胞の分化促進剤及び/又は増殖促進剤、並びに老人性貧血を防止又は治療するためのメチオニンの使用及びメチオニンを含む組成物 |
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JPS6112622A (ja) * | 1984-06-29 | 1986-01-21 | Kuraray Co Ltd | 造血幹細胞の分化増殖促進剤 |
WO2007029730A1 (ja) * | 2005-09-06 | 2007-03-15 | Meiji Dairies Corporation | 老人性貧血を防止又は治療するためのアミノ酸組成物 |
WO2009066562A1 (ja) * | 2007-11-20 | 2009-05-28 | Meiji Dairies Corporation | 赤血球系幹細胞の分化促進剤及び/又は増殖促進剤、並びに老人性貧血を防止又は治療するためのメチオニンの使用及びメチオニンを含む組成物 |
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