JP2010521170A - 抗体の生成方法 - Google Patents
抗体の生成方法 Download PDFInfo
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Abstract
【選択図】なし
Description
本願は、2007年3月13日に出願せる米国仮出願第60/894654号、及び2007年5月18日に出願せる米国仮出願第60/939042号の米国特許法第119条(e)を相互参照する。各出願の開示全体を、引用することによりあらゆる目的で本明細書に援用する。
本発明の実施には、特に断らない限り、当業者に周知の、分子生物学(組換え技術を含む)、微生物学、細胞生物学、生化学、核酸化学、及び免疫学の常用の技術を利用しうる。そのような技術は、Molecular Cloning:A Laboratory Manual,第2版(Sambrookら、1989)およびMolecular Cloning:A Laboratory Manual,第3版(Sambrook及びRussel,2001),(本明細書では併せて「Sambrook」として引用する);Current Protocols in Molecular Biology(F.M.Ausubelら編、1987,2001年までの追補も含む);PCR:The Polymerase Chain Reaction,(Mullisら、編、1994);Harlow及びLane(1988)Antibodies,A Laboratory Manual,Cold Spring Harbor Publications,New York;Harlow及びLane(1999)Using Antibodies:A Laboratory Manual Cold Spring Harbor Laboratory Press,Cold Spring Harbor,NY(本明細書では併せて「Harlow及びLane」として引用する),Beaucageら、編、Current Protocols in Nucleic Acid Chemistry John Wiley & Sons,Inc.,New York,2000);並びにVaccines,S.Plotkin及びW.Orenstein,編、第3版(1999)などの文献において充分に説明されている。
以下の実施例は、MMTV−tTA/TRE−MYCマウスに由来するB細胞系の生産を示す。
以下の実施例は、Eμ−MYC/BCRHEL/sHEL遺伝子導入マウスで生じる腫瘍及び細胞系の表面表現型とHEL特異的抗体生産を実証する。
以下の実施例は、MYCがB細胞寛容を破壊して、抗原誘発、MYC−依存性B細胞リンパ腫を起こすことができることを実証する。
以下の実施例は、B細胞特異的な、Doxで調節されるMYCを過剰発現しているマウスを使用した、自己反応性バックグラウンドからのB細胞系の生成を実証している
以下の実施例は、MYCを過剰発現しているマウスで生産される抗体が、インビボで機能することを実証する。
以下の実施例は、表現型としてH5N1を用いて、感染作用物質に対する新規抗体の発生を実証する。
Claims (61)
- a)MYCを誘導性に過剰発現する動物を、前記動物においてMYCが過剰発現されない条件下で抗原に導き;b)前記動物からB細胞を回収し;及びc)MYCが過剰発現される条件下で前記B細胞を培養する工程を含む、抗体生産細胞を生産するための方法。
- 前記動物を前記抗原に導く工程の後に、前記動物においてMYCが過剰発現される条件下に前記動物を維持する工程をさらに含む、請求項1記載の方法。
- 前記動物は、主に前記動物の前記B細胞においてMYCを誘導性に過剰発現する、請求項に記載の方法。
- 前記動物は、MMTV−rtTA/TRE−MYCマウスである、請求項1記載の方法。
- a)前記マウスは、前記動物を前記抗原に導く工程の間、MYC発現を抑止する抗生物質上に維持され;及びb)前記B細胞を培養する工程は、前記抗生物質の非存在下で行って抗体生産細胞を生産する、請求項4記載の方法。
- 前記マウスを前記抗原に導く工程の後に、前記抗生物質への曝露から前記動物を外す工程をさらに含む、請求項5記載の方法。
- 前記抗生物質はドキシサイクリンである、請求項5記載の方法。
- 前記動物を前記抗原に導く工程は、前記抗原をコード化しているDNAを、前記動物に遺伝的に移入する工程を含む、請求項1記載の方法。
- 前記抗原は自己抗原を含む、請求項1記載の方法。
- 前記動物はさらに前記抗原を発現する、請求項1記載の方法。
- 前記抗原はHIV蛋白質を含む、請求項1記載の方法。
- 前記抗原はgp120又はgp41を含む、請求項1記載の方法。
- 前記抗原はインフルエンザウイルス由来の抗原を含む、請求項1記載の方法。
- 前記抗原は血球凝集素である、請求項13記載の方法。
- a)MYCを誘導性に過剰発現する動物を、前記動物においてMYCが過剰発現されない条件下で抗原に導き;b)前記動物からB細胞を回収し;c)MYCが過剰発現される条件下で前記B細胞を培養し;及びd)前記B細胞培養物から抗体を回収する工程を含む、抗体を生産するための方法。
- 前記動物を前記抗原に導く工程の後に、前記動物においてMYCが過剰発現される条件下に前記動物を維持する工程をさらに含む、請求項15記載の方法。
- 前記動物は主に前記動物の前記B細胞においてMYCを誘導性に過剰発現する、請求項15記載の方法。
- 前記動物はMMTV−rtTA/TRE−MYCマウスである、請求項15記載の方法。
- 前記動物を前記抗原に導く工程は、前記抗原をコード化しているDNAを、前記動物に遺伝的に移入する工程を含む、請求項15記載の方法。
- 前記抗原は自己抗原を含む、請求項15記載の方法。
- 前記動物はさらに前記抗原を発現する、請求項15記載の方法。
- 前記抗原はHIV蛋白質を含む、請求項15記載の方法。
- 前記抗原はgp120又はgp41を含む、請求項15記載の方法。
- 前記抗原はインフルエンザウイルス由来の抗原を含む、請求項15記載の方法。
- 前記抗原は血球凝集素である、請求項24記載の方法。
- 前記抗体はヒト化抗体である、請求項15記載の方法。
- a)B細胞の重鎖又は軽鎖遺伝子のVDJ連結領域をコード化している核酸分子を、MYCを誘導性に過剰発現し且つ前記B細胞の生産を防止する遺伝的修飾を含む動物からの骨髄由来の幹細胞に導入し;b)前記骨髄由来の幹細胞をレシピエント動物に移入し;c)前記レシピエント動物からB細胞を回収し;d)MYCが過剰発現される条件下で前記B細胞を培養し、及びe)前記B細胞培養物から抗体を回収する工程を含む、抗体を生産するための方法。
- MYCが前記レシピエント動物において過剰発現される条件下に前記レシピエント動物を維持する工程を、前記骨髄由来の幹細胞を前記レシピエント動物に移入する工程の後にさらに含む、請求項27記載の方法。
- MYCが前記レシピエント動物において過剰発現されない条件下に前記レシピエント動物を維持する工程を、前記骨髄由来の幹細胞を前記レシピエント動物に移入する工程の後にさらに含む、請求項27記載の方法。
- 前記工程(a)からの前記B細胞はヒトB細胞である、請求項27記載の方法。
- 前記B細胞はヒトから単離される、請求項30記載の方法。
- 前記ヒトは、抗体が媒介する自己免疫疾患に罹患している、請求項31記載の方法。
- 前記工程(a)は、前記骨髄由来の幹細胞に、VDJ連結領域をコード化している前記核酸分子をレトロウイルスにより形質導入する工程を含む、請求項27記載の方法。
- 前記VDJ連結領域をコード化している前記核酸分子は、目的の抗原に選択的に結合する単離ヒトB細胞からクローニングされる、請求項33記載の方法。
- 前記VDJ連結領域をコード化している前記核酸分子は、ヒトドナーから得たB細胞に認められるIgH及びIgL配列より再配置したVDJ領域のPCR増幅断片である、請求項33記載の方法。
- 前記ヒトドナーは、健常ドナー、及び抗体が媒介する自己免疫疾患の患者からなる群より選択される、請求項35記載の方法。
- 前記骨髄由来の幹細胞はさらに、ヒトIgHをコード化している核酸分子、及びヒトIgLをコード化している核酸分子で形質導入される、請求項33記載の方法。
- 前記ヒトIgHをコード化している前記核酸分子と前記ヒトIgLをコード化している前記核酸分子は、同じ核酸分子である、請求項37記載の方法。
- 前記ヒトIgHと前記ヒトIgLをコード化している核酸分子の一方又は両方は、前記VDJ領域をコード化する同じ核酸分子である、請求項37記載の方法。
- 前記骨髄由来の幹細胞はヒトからのものである、請求項27記載の方法。
- 前記骨髄由来の幹細胞はマウスからのものである、請求項27記載の方法。
- 前記マウスは、Rag−2−/−、SCID、DNA−PK−/−、Ku70−/−、Ku80−/−、XRCC4−/−及びμMT−/−からなるリストより選択される遺伝的修飾を含む、MMTV−rtTA/TRE−MYCマウスである、請求項41記載の方法。
- 前記レシピエント動物は致死的に照射されたマウスである、請求項27記載の方法。
- 前記レシピエント動物はSCIDマウスである、請求項27記載の方法。
- 前記動物は、前記VDJ領域に選択的に結合する抗原にインビボで導かれる、請求項27記載の方法。
- 前記抗体のイソタイプはIgAである、請求項27記載の方法。
- 前記抗体のイソタイプはIgGである、請求項27記載の方法。
- 前記抗体のFc領域を遺伝的に修飾して、前記抗体が自己免疫反応及び関連免疫複合体沈着問題を誘発する能力を最小にしている、請求項27記載の方法。
- a)細胞の生存及び増殖を促進する癌原遺伝子を誘導性に過剰発現する動物を、前記癌原遺伝子が前記動物において過剰発現されない条件下で抗原に導き;b)前記動物からB細胞を回収し;及びc)前記癌原遺伝子が過剰発現される条件下で前記B細胞を培養する工程を含む、抗体生産細胞を生産するための方法。
- a)細胞の生存及び増殖を促進する癌原遺伝子を誘導性に過剰発現する動物を、前記癌原遺伝子が前記動物において過剰発現されない条件下で抗原に導き;b)前記動物からB細胞を回収し、;c)前記癌原遺伝子が過剰発現される条件下で前記B細胞を培養し;及びd)前記B細胞培養物から抗体を回収する工程を含む、抗体を生産するための方法。
- a)抗原をコード化している核酸分子を、細胞の生存及び増殖を促進する癌原遺伝子を誘導性に過剰発現する動物からの骨髄由来の幹細胞に導入し;b)前記骨髄由来の幹細胞をレシピエント動物に移入し;c)前記癌原遺伝子が前記動物において過剰発現される条件下に前記レシピエント動物を維持し;d)前記レシピエント動物からB細胞を回収し;e)前記癌原遺伝子が過剰発現される条件下で前記B細胞を培養し;及びf)前記B細胞培養物から抗体を回収する工程を含む、抗体を生産するための方法。
- a)細胞の生存及び増殖を促進する癌原遺伝子をコード化している核酸分子を、動物からの骨髄由来の幹細胞に導入し;b)前記骨髄由来の幹細胞をレシピエント動物に移入し;c)前記レシピエント動物からB細胞を回収し;d)抗原をコード化している核酸分子を前記B細胞に導入し;e)前記癌原遺伝子が過剰発現される条件下で前記B細胞を培養し;及びf)前記B細胞培養物から抗体を回収する工程を含む、抗体を生産するための方法。
- a)細胞の生存及び増殖を促進する癌原遺伝子をコード化している核酸分子を、動物からの骨髄由来の幹細胞に導入し;b)前記骨髄由来の幹細胞を第1レシピエント動物に移入し;c)前記第1レシピエント動物からB細胞を回収し;d)抗原をコード化している核酸分子を前記B細胞に導入し;e)前記B細胞を第2レシピエント動物に移入し;f)前記動物において前記癌原遺伝子が過剰発現される条件下に前記第2レシピエント動物を維持し;g)前記第2レシピエント動物からB細胞を回収し;h)前記癌原遺伝子が過剰発現される条件下で前記B細胞を培養し;及びi)前記B細胞培養物から抗体を回収する工程を含む、抗体を生産するための方法。
- 前記癌原遺伝子はMYCである、請求項51記載の方法。
- 前記骨髄由来の幹細胞は、抗アポトーシス蛋白質をコード化している核酸分子で形質導入されている、請求項52記載の方法。
- 前記抗アポトーシス蛋白質はBcl−2である、請求項55記載の方法。
- 前記核酸分子は、レトロウイルスにより導入される、請求項52記載の方法。
- 前記骨髄由来の幹細胞はヒトからのものである、請求項52記載の方法。
- 前記骨髄由来の幹細胞は、条件付きで不死化された長寿命の造血幹細胞である、請求項52記載の方法。
- 前記レシピエント動物は、亜致死的に照射されたNOD/SCIDマウスである、請求項51のいずれか1つに記載の方法。
- 前記動物は、ヒトIg座位をコード化している核酸分子に対して遺伝子導入されている、請求項15のいずれか1つに記載の方法。
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- 2008-03-13 KR KR1020137020078A patent/KR20140092232A/ko not_active Application Discontinuation
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US8551968B2 (en) | 2013-10-08 |
EP2583551A1 (en) | 2013-04-24 |
EP2583550A1 (en) | 2013-04-24 |
EP2134852A4 (en) | 2010-04-28 |
CN101688228B (zh) | 2014-12-24 |
IL200919A0 (en) | 2011-07-31 |
WO2008112922A2 (en) | 2008-09-18 |
US20140162357A1 (en) | 2014-06-12 |
EP2134852A2 (en) | 2009-12-23 |
CN101688228A (zh) | 2010-03-31 |
KR20140092232A (ko) | 2014-07-23 |
WO2008112922A3 (en) | 2008-11-06 |
CA2680613A1 (en) | 2008-09-18 |
US20100279351A1 (en) | 2010-11-04 |
KR20090130236A (ko) | 2009-12-21 |
AU2008224950A1 (en) | 2008-09-18 |
AU2008224950B2 (en) | 2013-10-03 |
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