JP5424538B2 - 移植用成熟誘導化樹状細胞、製造方法及びその利用方法 - Google Patents
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Description
Claims (12)
- 生体外で成熟誘導化させ、培地中に浮遊させた状態の移植用成熟誘導化樹状細胞群であって、
CD58、CD54、CD80、CD83、CD86のいずれか1つの細胞表面抗原をウェスタンブロット法で分析すると、当該細胞表面抗原分子に相当するものが単一バンドとして観察される、
移植用成熟誘導化樹状細胞群であって、
以下の工程を含む方法により得られうる、移植用成熟誘導化樹状細胞群:
(1)末梢血、骨髄のいずれか1種、もしくは2種以上より血球分離装置を用いて血球成分を回収し、
(2)その回収した血球成分から、プラスチック製培養皿への付着性、もしくはCD14抗体を利用した分離法により単球成分を単離し、
(3)それを再びプラスチック製培養表面に付着させた後、少なくともGM−CSFを用いてその単球群を未熟樹状細胞群へ誘導させ、浮遊してきた未熟樹状細胞群を培地とともに回収し、
(4)その未熟樹状細胞群を水に対する上限もしくは下限臨界溶解温度が0〜80℃である温度応答性ポリマーを特定量被覆した温度応答性細胞培養基材表面上に播種し、成熟樹状細胞群へ誘導化させた後、
(5)培養液温度を上限臨界溶解温度以上または下限臨界溶解温度以下とし、酵素処理を施すことなく成熟樹状細胞群を剥離する方法。 - 以下の工程を含む方法により得られうる、請求項1記載の移植用成熟誘導化樹状細胞群:
(1)末梢血、骨髄のいずれか1種、もしくは2種以上より血球分離装置を用いて血球成分を回収し、
(2)その回収した血球成分から、プラスチック製培養皿への付着性、もしくはCD14抗体を利用した分離法により単球成分を単離し、
(3)それを再びプラスチック製培養表面に付着させた後、少なくともGM−CSFを用いてその単球を未熟樹状細胞群へ誘導させ、浮遊してきた未熟樹状細胞群を培地とともに回収し、
(4)その未熟樹状細胞群を水に対する上限もしくは下限臨界溶解温度が0〜80℃である温度応答性ポリマーを特定量被覆した温度応答性細胞培養基材表面上に播種し、少なくともピシバニールを用いて成熟樹状細胞へ誘導化させた後、
(5)培養液温度を上限臨界溶解温度以上または下限臨界溶解温度以下とし、酵素処理を施すことなく成熟樹状細胞群を剥離する方法。 - 細胞表面抗原の損傷が少ないことが、細胞のインターロイキン−12の産生能が高いことである、請求項1又は2記載の移植用成熟誘導化樹状細胞群。
- 樹状細胞群が、末梢血、骨髄のいずれか1種、もしくは2種以上から得られたものを誘導化したものである、請求項1〜3のいずれか1項記載の移植用成熟誘導化樹状細胞群。
- 蛋白質分解酵素による処理が施されていない、請求項1〜4のいずれか1項記載の移植用成熟誘導化樹状細胞群。
- ウイルス持続感染症、悪性腫瘍、アレルギー、自己免疫疾患、移植後拒絶反応を治療するための、請求項1〜5のいずれか1項記載の移植用成熟誘導化樹状細胞群。
- 移植用成熟誘導化樹状細胞の製造が、
(1)末梢血、骨髄のいずれか1種、もしくは2種以上より血球分離装置を用いて血球成分を回収し、
(2)その回収した血球成分から、プラスチック製培養皿への付着性、もしくはCD14抗体を利用した分離法により単球成分を単離し、
(3)それを再びプラスチック製培養表面に付着させた後、少なくともGM−CSFを用いてその単球を未熟樹状細胞へ誘導させ、浮遊してきた未熟樹状細胞を培地とともに回収し、
(4)その未熟樹状細胞を水に対する上限もしくは下限臨界溶解温度が0〜80℃である温度応答性ポリマーを特定量被覆した温度応答性細胞培養基材表面上に播種し、少なくともピシバニールを用いて成熟樹状細胞へ誘導化させた後、
(5)培養液温度を上限臨界溶解温度以上または下限臨界溶解温度以下とし、酵素処理を施すことなく成熟樹状細胞を剥離する方法
である、移植用成熟誘導化樹状細胞の製造方法。 - 温度応答性ポリマーが、ポリ(N−イソプロピルアクリルアミド)である、請求項7記載の移植用成熟誘導化樹状細胞の製造方法。
- 温度応答性ポリマーの被覆量が、1.3〜2.2μg/cm2である、請求項7、8のいずれか1項記載の移植用成熟誘導化樹状細胞の製造方法。
- 1回の治療に必要な血球分離装置で処理される末梢血量が1.8〜2.5リットルである、請求項7記載の移植用成熟誘導化樹状細胞の製造方法。
- 治療が、ウイルス持続感染症、悪性腫瘍、アレルギー、自己免疫疾患、移植後拒絶反応である、請求項1〜5のいずれか1項記載の移植用成熟誘導化樹状細胞群を移植することを特徴とする治療法(ただし、ヒトを対象とする方法を除く)。
- 移植方法が移植用成熟誘導化樹状細胞群を末梢血に戻すことを特徴とする、請求項11記載の治療法。
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