KR20210149089A - 사전 포획 응집을 이용하는 것에 의한 면역글로불린의 친화성 크로마토그래피 개선 - Google Patents
사전 포획 응집을 이용하는 것에 의한 면역글로불린의 친화성 크로마토그래피 개선 Download PDFInfo
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Abstract
Description
도 1a는 대용량의 세포 배양물로부터 면역글로불린의 정제를 위한 보편적인 공정 계획을 나타낸다. 수확된 배양액의 원심분리 및/또는 여과 후에 수득된 정화된 벌크 물질로 시작되는 이 공정은 단백질 A 포획 단계 및 2개의 후속적인 폴리싱 단계로 이루어진다. 이 계획은 두 가지의 전형적인 바이러스 안전성 단계도 포함한다. 바이러스 불활성화 단계는 낮은 pH에서 단백질 A 용출액을 유지시킴으로써 수행되고, 바이러스 제거를 위한 나노 여과 단계가 마지막 폴리싱 단계 후에 수행된다. 최종 단계는 일반적으로 면역글로불린 및 제형 성분의 원하는 농도를 설정하기 위한 접선 유동 한외여과 및/또는 정용여과(tangential flow ultrafiltration and/or diafiltration, UF/DF-TFF)이다.
도 1b는 3개의 크로마토그래피로 이루어진 대용량의 세포 배양물로부터 면역글로불린의 정제를 위한 전통적인 공정 계획을 나타낸다(예를 들어, Fahrner R.L. 2001 또는 Kelly B. 2009에 따름). 폴리싱 단계가 양이온 교환 크로마토그래피(폴리싱 단계 1)에 이어 음이온 교환 크로마토그래피(폴리싱 단계 2)인 것으로 개시되어 있는 점을 제외하고는 도 1a와 동일한 공정이다. 양이온 교환 크로마토그래피는 결합 모드(binding mode)에서 수행되는 반면, 음이온 교환 크로마토그래피는 플로우 쓰루 모드에서 수행된다는 점을 강조해야 한다. 이 전통적인 계획의 자주 적용되는 등가 변형은 단순히 폴리싱 단계 1 및 2의 순서를 변경하는 것임을 언급하여야 한다.
도 2: 사전 세정 단계를 이용하는 본 발명의 예시적인 공정 계획
도 2a는 세포의 존재 하에 수확물에서 직접적으로 사전 포획 응집 단계를 갖는 대규모 공정 계획을 나타낸다. 이어서, 응집된 물질은 원심분리에 이어서 심층 여과 및 정밀 여과에 의해 제거된다. 응집 단계는 양이온성 화합물을 첨가함으로써 수행된다. 정화된 배양액은 단백질 A인 포획 크로마토그래피 컬럼에 로딩된다. 2개의 폴리싱 단계는 양이온 교환 크로마토그래피(폴리싱 단계 1)에 이어서 혼합 모드 크로마토그래피(폴리싱 단계 2)이다. 양이온 교환 크로마토그래피는 결합 및 용리 모드(bind and elute mode)에서 수행된다. 혼합 모드 수지는 양으로 하전된 리간드를 가지며, 결합 및 용리 모드 또는 플로우 쓰루(FT) 모드에서 수행될 수 있다. 중간 바이러스 안전성 단계 및 최종 UF/DF-TFF는 도 1a에 설명된 바와 같다.
도 2b는 응집 단계가 세포 부재 하에 세포 분리 이후에 수행된다는 점을 제외하고는 도 2a의 공정과 유사한 대안적인 대규모 공정 계획을 나타낸다. 모든 다른 단계는 도 2a에 설명된 바와 같다.
도 2c는 최종 폴리싱 크로마토그래피가 플로우 쓰루(FT) 모드의 음이온 교환 크로마토그래피인 점을 제외하고는 도 2b의 공정과 유사한 대안적인 대구모 공정 계획을 나타낸다. 모든 다른 단계는 도 2a 및 도 2b에 설명된 바와 같다.
Claims (30)
- 하기 단계를 하기 순서로 포함하는, 세포 배양액으로부터 면역글로불린의 포획 친화성 크로마토그래피(capture affinity chromatography) 중에 침전을 방지하는 방법.
(a) 응집-유도 화합물(flocculation-inducing compound)을 세포 배양액에 첨가하는 단계;
(b) 단계 (a)의 혼합물의 심층 여과(depth filtration) 단계;
(c) 단계 (b)에서 수득된 여액(filtrate)을 친화성 크로마토그래피에 노출시키는 단계 - 여기서 상기 면역글로불린은 친화성 크로마토그래피 매질에 결합됨 -;
(d) 5 내지 9의 pH 값 및 0.1 내지 5.0 mol/ℓ의 이온 강도를 갖는 세척 버퍼(washing buffer)를 이용하여 친화성 크로마토그래피 매질을 세척하는 단계; 및
(e) 2.5 내지 4.5의 pH 값을 갖는 용리 버퍼(elution buffer)를 이용하여 친화성 크로마토그래피 수지로부터 면역글로불린을 용리시키는 단계.
- 제1항에 있어서,
단계 (a)는 하기 단계:
(a1) 세포 배양액의 원심분리 및/또는 여과 단계;
(a2) 응집-유도 화합물을 단계 (a1)에서 수득된 상청액 또는 여액에 첨가하는 단계를 포함하는
방법.
- 제1항 또는 제2항에 있어서,
상기 응집-유도 화합물은 양이온성 화합물(cationic compound)인
방법.
- 제3항에 있어서,
상기 양이온성 화합물은 2가 금속 이온염, 수용성 유기 폴리머 및 수불용성 유기 폴리머로 이루어진 군으로부터 선택되는
방법.
- 제4항에 있어서,
상기 2가 금속 이온염은 CaCl2인
방법.
- 제4항에 있어서,
상기 수불용성 유기 폴리머는 키토산인
방법.
- 제4항에 있어서,
상기 수용성 유기 폴리머는 폴리 (디알릴디메틸암모늄 클로라이드)인
방법.
- 제7항에 있어서,
상기 폴리 (디알릴디메틸암모늄 클로라이드)는 10 kDa 내지 10 000 kDa의 분자 질량을 갖는
방법.
- 제7항 또는 제8항에 있어서,
상기 폴리 (디알릴디메틸암모늄 클로라이드)는 0.01 내지 1.0 %(w/v)의 최종 농도로, 바람직하게 0.02 내지 0.1 %(w/v)의 최종 농도로, 더욱 바람직하게 0.03 to 0.08 %(w/v)의 최종 농도로 첨가되는
방법.
- 제7항 내지 제9항에 있어서,
상기 폴리 (디알릴디메틸암모늄 클로라이드)를 제외하고, 응집을 수행하기 위하여 추가적인 물질이 첨가되지 않는
방법.
- 제7항 내지 제10항에 있어서,
폴리 (디알릴디메틸암모늄 클로라이드)에 의한 응집은 pH 또는 전도도의 추가적인 조정 없이 수행되는
방법.
- 제1항 내지 제11항 중 어느 한 항에 있어서,
상기 응집은 적어도 5분 동안, 바람직하게 적어도 15분 동안, 실온에서, 교반 하에 수행되는
방법.
- 제1항 내지 제12항 중 어느 한 항에 있어서,
상기 친화성 크로마토그래피는 단백질 A 크로마토그래피인
방법.
- 제13항에 있어서,
상기 단백질 A 크로마토그래피 매질은 리간드로서, 가교결합 아가로스 매트릭스(cross-linked agarose matrix)에 결합된, 알칼리-내성 단백질 A 유도체(alkali-tolerant Protein A derivative), 바람직하게 단백질 A의 도메인 B의 알칼리-안정화된 테트라머 변이체(alkali-stabilized tetramer variant)를 포함하는
방법.
- 제1항 내지 제14항 중 어느 한 항에 있어서,
단계 (b)에서 심층 여과를 위한 필터는 1개를 넘는 층, 바람직하게 2개 층을 포함하는
방법.
- 제1항 내지 제15항 중 어느 한 항에 있어서,
단계 (b)와 단계 (c) 사이에, 정밀 여과(microfiltration)가 수행되는
방법.
- 제1항 내지 제16항 중 어느 한 항에 있어서,
단계 (c)는 단계 (b) 후 최대 8시간, 바람직하게 단계 (b) 후 최대 3시간 후에 수행되는
방법.
- 제1항 내지 제17항 중 어느 한 항에 있어서,
상기 세포 배양액은 면역글로불린을 발현하는 재조합 CHO 세포로부터 수득되는
방법.
- 제1항 내지 제18항 중 어느 한 항에 있어서,
상기 면역글로불린은 IgG1 또는 IgG2인
방법.
- 제19항에 있어서,
상기 IgG1 또는 IgG2의 Fc 부분은 인간인
방법.
- 제1항 내지 제20항 중 어느 한 항에 정의된 단계를 포함하고, 친화성 크로마토그래피 후에, 바이러스 불활성화(virus inactivation), 음이온 교환 크로마토그래피(anion exchange chromatography), 양이온 교환 크로마토그래피(cation exchange chromatography), 혼합 모드 크로마토그래피(mixed-mode chromatography), 나노 여과(nanofiltration) 및 한외여과/정용여과(ultrafiltration/diafiltration)로루터 선택되는 일 이상의 추가적인 단계를 포함하는
면역글로불린의 정제 방법.
- 제21항에 있어서,
상기 일 이상의 추가적인 단계는
(f) 바이러스 불활성화를 위하여 단계 (e)의 용출액을 적어도 10분 동안 2.5 내지 4.5의 낮은 pH 값에서 배양하는 단계를 포함하는
방법.
- 제21항에 있어서,
상기 일 이상의 추가적인 단계는
(f) 바이러스 불활성화를 위하여 단계 (e)의 용출액을 적어도 10분 동안 2.5 내지 4.5의 낮은 pH 값에서 배양하는 단계;
(g) 양이온 교환 크로마토그래피를 수행하는 단계;
(h) 혼합 모드 크로마토그래피 또는 음이온 교환 크로마토그래피를 수행하는 단계;
(i) 단계 (h)의 용출액, 또는 그로부터 유래되고 단계 (h) 후에 수행된 일 이상의 추가적인 공정 단계 후에 수득된 조성물을 나노 여과에 노출시키는 단계; 및
(j) 단계 (i)의 여액, 또는 그로부터 유래되고 단계 (i) 후에 수행된 일 이상의 추가적인 공정 단계 후에 수득된 조성물을 한외여과/정용여과에 노출시키는 단계를 포함하는
방법.
- 제23항에 있어서,
상기 양이온 교환 크로마토그래피 (g)는 결합-용리 모드(bind-elute mode)에서 수행되며, 선택적으로 일 이상의 세척 단계를 포함하는
방법.
- 제23항에 있어서,
단계 (h)에서 상기 혼합 모드 크로마토그래피는 결합-용리 모드에서 수행되며, 선택적으로 일 이상의 세척 단계를 포함하는
방법.
- 제23항에 있어서,
상기 크로마토그래피 (h)는 플로우 쓰루 모드(flow through mode)에서 수행되는
방법.
- 제23항에 있어서,
단계 (g)의 상기 양이온 교환 크로마토그래피는, 강한 양이온 교환 매질(strong cation exchange medium)을 포함하는 매질에 의해, 바람직하게 리간드로서 설포프로필 (-CH2CH2CH2SO3-)을 갖는 강한 양이온 교환 매질을 포함하는 매질에 의해 수행되는
방법.
- 제27항에 있어서,
설포프로필 (-CH2CH2CH2SO3-)은 가교결합된 폴리(스티렌-디비닐벤젠) 매트릭스에 결합되는
방법.
- 제23항에 있어서,
단계 (h)의 상기 혼합 모드 크로마토그래피 매질은, 가교결합 아가로스 매트릭스에 결합된, 양전하를 띤 혼합 모드 매질, 바람직하게 리간드로서 N-벤질-N-메틸 에탄올아민을 포함하는 양전하를 띤 혼합 모드 매질에 의해 수행되는
방법.
- 제23항에 있어서,
단계 (h)의 상기 음이온 교환 크로마토그래피 매질은, 가교결합 아가로스 매트릭스에 결합된, 강한 음이온 교환 매질(strong anion exchange medium), 바람직하게 리간드로서 트리메틸암모늄(-N+(CH3)3)을 갖는 강한 음이온 교환 매질에 의해 수행되는
방법.
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AR123947A1 (es) * | 2020-10-30 | 2023-01-25 | Genentech Inc | Plataformas de purificación para obtener composiciones farmacéuticas que tienen una tasa de actividad enzimática hidrolítica reducida |
AU2021399935A1 (en) * | 2020-12-18 | 2023-06-29 | Richter Gedeon Nyrt. | Methods for the purification of refolded fc-peptide fusion protein |
EP4486780A1 (en) * | 2022-03-02 | 2025-01-08 | Regeneron Pharmaceuticals, Inc. | Manufacturing process for high titer antibody |
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DE69233254T2 (de) | 1991-06-14 | 2004-09-16 | Genentech, Inc., South San Francisco | Humanisierter Heregulin Antikörper |
NZ258392A (en) | 1992-11-13 | 1997-09-22 | Idec Pharma Corp | Chimeric and radiolabelled antibodies to the b lymphocyte cellsurface antigen bp35 (cd-20) and their use in the treatment of b cell lymphona |
US5429746A (en) | 1994-02-22 | 1995-07-04 | Smith Kline Beecham Corporation | Antibody purification |
CZ292465B6 (cs) | 1996-02-09 | 2003-09-17 | Abbott Laboratories (Bermuda) Ltd. | Lidské protilátky k lidskému TNFalfa |
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ES2374330T3 (es) | 2007-01-22 | 2012-02-15 | Genentech, Inc. | Precipitación con polielectrolito y purificación de anticuerpos. |
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