KR20140136028A - Iga를 농축시키는 방법 - Google Patents
Iga를 농축시키는 방법 Download PDFInfo
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- KR20140136028A KR20140136028A KR20147028263A KR20147028263A KR20140136028A KR 20140136028 A KR20140136028 A KR 20140136028A KR 20147028263 A KR20147028263 A KR 20147028263A KR 20147028263 A KR20147028263 A KR 20147028263A KR 20140136028 A KR20140136028 A KR 20140136028A
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- C07K16/06—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies from serum
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- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
- B01D15/361—Ion-exchange
- B01D15/363—Anion-exchange
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
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Abstract
Description
도 1: 혈장 분획화의 상이한 중간체 침전물 또는 혈장으로부터의 IgG의 정제 동안 수득된 부수적 분획을 기준으로 한 IgA 농축 공정의 흐름도이다. 2개의 출발 물질이 예시되어 있다(실시예 1에서의 방법 1 및 실시예 2에서의 방법 2).
도 2: 도 1에 나타낸 방법 1에 따라서, 음이온 교환 크로마토그래피에 대해 부하된 물질(공급물 원료)의 조성물의 HPLC 분석. x-축은 용출 시간을 나타내고, y-축은 280nm(mAu 밀리-흡착 단위)에서 흡광도를 나타낸다.
도 3: x-축 상의 밀리리터로의 보유 용적, 및 y-축 상의 280nm(mAu: 밀리-흡착 단위)에서의 흡광도를 나타내는, 음이온 교환 컬럼의 용출 프로파일. 용출 용액은, 상기 프로파일에서 나타내고, 수직선은, 컬럼에 적용된 용액의 변화를 나타낸다.
도 4: 방법 1에 따른 분획 F4A의 조성물의 HPLC 분석.
도 5: 친화성 크로마토그래피에 의한 IgG의 제거 후 F4의 조성물의 HPLC 분석.
도 6: 친화성 크로마토그래피에 의한 IGg 및 IgM의 분획 F5의 조성물의 HPLC 분석.
도 7: 용출 완충액 1로서 상이한 완충액을 사용하는, 음이온 교환 컬럼의 공정의 용출 프로파일. 수직 파선(dashed vertical line)은, 컬럼에 적용된 용액의 변화를 나타낸다. *아세테이트 완충액 용출을 위한 부하는 감소되었다.
도 8: 전체의 부하된 단백질에 대해 상이한 용출 완충액으로 용출 1을 수행하는 경우 수득된 분획 중의 IgA 및 IgM의 함량의 분석.
Claims (24)
- IgA-포함 조성물로부터 IgA를 농축시키는 방법으로서, 상기 방법은,
(a) IgA가 결합하도록 하는 조건 하에서 음이온 교환체(anion exchanger)에 IgA-포함 조성물을 부하(loading)하는 단계;
(b) 2개 이상의 산 그룹을 지닌 물질을 포함하는 알칼리성 용출 용액을 적용시키는 단계;
(c) 음이온 교환체에 대한 강력한 경쟁인자를 포함하는 산성 용출 용액을 임의로 적용시키는 단계를 포함하고,
여기서, 상기 단계 (b) 동안에 용출된 단백질에는 단량체성 IgA가 농축되는, IgA-포함 조성물로부터 IgA를 농축시키는 방법. - 제1항에 있어서, 단계 (a)와 단계 (b) 사이에, 저 전도도 용액을 상기 음이온 교환체에 적용시킴으로써 예비-용출 단계 (a1)이 수행되는, 방법.
- 제2항에 있어서, 상기 단계 (a1)이 약산성/중성 pH에서 수행되는, 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 단계 (b)에서의 상기 물질이, 2개 이상의 카복실 그룹을 지닌 다가의 하이드록시-카복실산 또는 이의 염, 및/또는 포스페이트로부터 선택되는, 방법.
- 제4항에 있어서, 상기 물질이, 타르타르산/타르트레이트, 옥살산/옥살레이트, 말론산/말로네이트, 및 말레산/말레에이트와 같은 디하이드록시-디카복실산 및/또는 디카복실산 또는 이들의 염, 시트르산/시트레이트와 같은 하이드록시-트리카복실산 또는 이의 염, 및/또는 포스페이트로부터 선택되는, 방법.
- 제5항에 있어서, 상기 디하이드록시-디카복실산 또는 이의 염이, 타르타르산/타르트레이트, 옥살산/옥살레이트, 말론산/말로네이트, 및 말레산/말레에이트로부터 선택되는, 방법.
- 제6항에 있어서, 상기 디하이드록시-디카복실산 또는 이의 염이 타르타르산/타르트레이트 또는 옥살산/옥살레이트인, 방법.
- 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 단계 (b) 동안에 수집된 용출물에 필수적으로 IgM이 부재하는, 방법.
- 제7항에 있어서, 상기 단계 (c)에서 용출된 단백질에는 이량체성 IgA가 농축되는, 방법.
- 제1항 내지 제9항 중 어느 한 항에 있어서, 상기 단계 (c)에서의 음이온 교환체에 대한 강력한 경쟁인자가, 시트레이트, 벤젠설폰산, 벤조산, 및 황산수소의 염 또는 이들의 혼합물로부터 선택되는, 방법.
- 제10항에 있어서, 상기 음이온 교환체에 대한 강력한 경쟁인자가 시트레이트인, 방법.
- 제1항 내지 제11항 중 어느 한 항에 있어서, 상기 음이온 교환체가 강력한 음이온 교환체 또는 약한 음이온 교환체인, 방법.
- 제12항에 있어서, 상기 음이온 교환체가, 4급 암모늄, 4급 아미노에틸, 디에틸아미노에틸, 트리메틸아미노에틸, 또는 디메틸아미노에틸과 같은 음이온 교환 리간드를 포함하는, 방법.
- 제13항에 있어서, 상기 음이온 교환체가, MPHQ, DEAE 세파로즈 FF, Q 세파로즈(HP 및 FF), ANX 세파로즈 FF(저 치환 및 고 치환됨), 캡토(Capto) Q, 캡토 Q XP, 캡토 DEAE, 캡토 ANX, 마크로 캡(Macro Cap) Q, 소오스(Source) 30 Q 및 15 Q, Q 하이퍼 셀(Hyper Cel), 기가 캡(Giga Cap) Q 650M, QAE 550 C, DEAE 바이오겔(Biogel) A, 프럭토겔(Fractogel) DEAE, 프럭토겔 TMAE 및 프럭토겔 DMAE로부터 선택되는, 방법.
- 제1항 내지 제14항 중 어느 한 항에 있어서, 상기 IgA-포함 조성물이, 혈액, 혈청, 혈장 또는 다른 생물학적 유액이거나 이들로부터 유도되는, 방법.
- 제15항에 있어서, 상기 IgA-포함 조성물이, 혈장 분획화의 중간체 침전물의 용액 또는 혈장 유래의 IgG의 정제 동안에 수득된 부수적 분획인, 방법.
- 제15항 또는 제16항에 있어서, 상기 IgA-포함 조성물이 IgG 정제 공정에서의 중간체이며, 여기서, 제1항의 방법의 상기 단계 (a) 및 상기 단계 (b)가 IgG 생산 공정의 일부인 음이온 교환체에 대해 수행되는, 방법.
- 제15항 또는 제16항에 있어서, 상기 IgG-포함 조성물이, 침전물을 가용화시킴으로써 수득되는, 방법.
- 제18항에 있어서, 상기 침전물이, IgG 정제 동안 수득된 옥탄산 침전물인, 방법.
- 제18항 또는 제19항에 있어서, 상기 가용화 단계가 IgA 및 IgG를 선택적으로 용액화시키는, 방법.
- 제19항에 있어서, 상기 가용화가, 전도도가 1 내지 15mS/cm이고, pH가 3.5 내지 6 또는 7 내지 9.5인 용액을 사용하여 수행되는, 방법.
- 제21항에 있어서, 상기 가용화가, 포스페이트 완충액, 아세테이트 완충액, 트리스 완충액, 및/또는 이들 완충액 중 2개 이상의 조합물로 수행되는, 방법.
- 제22항에 있어서, 상기 완충액이, 0.22M 아세테이트 완충액 또는 0.15M 포스페이트 완충액, pH 4.8로부터 선택되는, 방법.
- 순차적 용출에 의해 단량체성 및 이량체성 IgA를 분리하기 위한, 음이온 교환 크로마토그래피의 용도.
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