KR101948944B1 - 혈액 성분을 포함하는 피브리노겐-함유 샘플로부터 표적 분자 또는 입자를 분리하는 방법 - Google Patents
혈액 성분을 포함하는 피브리노겐-함유 샘플로부터 표적 분자 또는 입자를 분리하는 방법 Download PDFInfo
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Abstract
Description
도 1은 본 발명의 주 목적을 달성하기 위해 이용될 수 있는 피브리노겐의 피브린으로의 전환을 나타내는 응고 과정을 도식적으로 나타낸 것이다(참조. http://en.wikipedia.org/wick/Coagulation).
도 2는 트롬빈에 피브리노겐(1) 함유 샘플의 노출시 피브린 그물망(3)에 표적 분자 또는 입자(2)의 포획 메카니즘을 도식적으로 나타낸 것이다.
도 3은 트롬빈에 피브리노겐 함유 샘플의 노출시 피브린 그물망에 표적 분자 또는 입자의 친화성 포획에 대한 상이한 태양들을 도식적으로 나타낸 것이다: (a) 피브리노겐/피브린(1)에 대한 결합 잔기(4)를 갖는 표적(2)의 천연 친화성; (b) 상기 표적(2)을 지향하고 피브린/피브리노겐(1)-결합 잔기(4)를 갖는 물질-포착 잔기(5)를 통한 친화성 포착; (c) 표적(1)을 지향하는 포착 잔기 도메인(7)을 갖는 피브리노겐 융합(1) 단백질을 통한 친화성 포착.
도 4는 도 3(b)의 친화성 포획의 변형을 도식적으로 나타낸 것으로, 여기서 친화성 포획은 상기 표적(2)에 대해 유도되고 피브린(3) 결합 잔기(4')를 갖는 물질-포착 잔기(5)를 통해 수행된다. 바람직한 태양에서, 피브린에 대한 잔기(4')의 친화성은 트롬빈에 대한 샘플의 노출 단계후에만 활성 형태(4)로 전환될 것이다.
도 5는 표적 분리로부터 검출까지의 전체 분석 과정을 도식적으로 나타낸 것으로, 여기서 피브리노겐(1) 함유 샘플내 표적(2)은 피브린/피브리노겐-결합 잔기(4)를 포함하는 물질-포착 잔기(5) 및 검출 표지(9)를 포함하는 물질-표지 잔기(8)에 노출된다. 트롬빈에 노출시 복합체 "표적/물질-포착 잔기/물질-표지 잔기"는 축소된 피브린 응괴내에서 분리될 것이다. 표적의 검출은 응괴 농축물에 직접 수행될 것이다.
도 6은 샘플 수집 장치 운전을 도식적으로 나타낸 것이다. 본 발명에 따르면, 상기 장치는 상기 장치내에서 트롬빈 또는 트롬빈-유사 효소에 상기 샘플의 노출시 상기 표적 분자 또는 입자를 분리가능한 방식으로 포획하는 피브린 응괴를 형성하도록 작동될 수 있다.
Claims (48)
- (a) 현탁액에 피브리노겐을 함유하는 샘플을 외인성 트롬빈 또는 트롬빈-유사 효소에 적용시켜 샘플에 함유된 피브리노겐을 적어도 부분적으로 피브린으로 전환시켜 피브린 그물망을 형성함으로써 피브린 그물망에 표적 분자 또는 입자를 포획하는 단계;
(b) 상기 피브린 그물망을 수축시켜 초기 부피 크기의 1/10 미만의 크기를 갖는 피브린 응괴를 형성하는 단계; 및
(c) 상기 피브린 응괴를 주위 샘플 매질로부터 분리하는 단계
를 포함하는, 현탁액에 피브리노겐을 함유하는 샘플을 처리하여 표적 분자 또는 입자를 상기 샘플로부터 분리하고 농축하는 방법. - 제 1 항에 있어서,
샘플내 피브리노겐의 농도가 1 ㎍/㎖ 이상인 방법. - 제 1 항에 있어서,
트롬빈 또는 트롬빈-유사 효소의 농도가 샘플 1 ㎖ 당 0.01 내지 10 IU인 방법. - 제 1 항에 있어서,
샘플이 응고 인자 XIII을 추가로 함유하는 방법. - 제 1 항에 있어서,
샘플이 칼슘을 추가로 함유하는 방법. - 제 1 항에 있어서,
샘플이 GDTA, EDTA 및 시트레이트로 이루어진 군에서 선택된 킬레이트화제를 추가로 함유하는 방법. - 제 1 항에 있어서,
샘플이 샘플내 혈소판 세포 또는 활성화된 혈소판 세포 용해물을 추가로 포함하는 방법. - 제 7 항에 있어서,
혈소판이 아데노신 다이포스페이트 및 콜라겐으로 이루어진 군에서 선택된 혈소판 작용물질에 의해 활성화되는 방법. - 제 1 항에 있어서,
단계 (a) 이전에 샘플에 피브리노겐을 첨가하는 단계를 추가로 포함하는 방법. - 삭제
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- 제 1 항에 있어서,
피브린 응괴를 용해시켜 표적 분자 또는 입자를 회수하는 단계를 추가로 포함하는 방법. - 제 12 항에 있어서,
응괴의 용해 단계가 피브린용해제를 사용하여 수행되는 방법. - 제 12 항에 있어서,
용해 단계가 세포용해제, 프로테아제 및 핵산 분해 효소로 이루어진 군에서 선택된 성분을 사용하는 방법. - 제 12 항에 있어서,
용해 단계가 세제의 사용을 포함하는 방법. - 제 1 항에 있어서,
샘플이 혈액 샘플인 방법. - 제 16 항에 있어서,
혈액 샘플이 전혈, 혈소판-풍부 혈장, 혈소판-결핍 혈장 및 혈청으로 이루어진 군에서 선택되는 방법. - 제 16 항에 있어서,
혈액 샘플이 혈액 샘플을 피브리노겐-결핍 샘플과 혼합시켜 수득된 인공 조성된 혈액 샘플인 방법. - 제 16 항에 있어서,
혈액 샘플이 응고 인자를 피브리노겐-결핍 샘플과 혼합시켜 수득된 인공 조성된 혈액 샘플인 방법. - 제 19 항에 있어서,
응고 인자가 피브리노겐인 방법. - 제 1 항에 있어서,
단계 (a)에서의 포획이 피브린 그물망에 표적 입자 또는 분자를 크기 포획함으로써 수행되는 방법. - 제 1 항에 있어서,
단계 (a)에서의 포획이 피브린 그물망에 표적 입자를 친화성 포획함으로써 수행되는 방법. - 제 22 항에 있어서,
화학적 포획이 피브리노겐 또는 피브린에 대한 표적 분자 또는 입자의 천연 친화성에 의해 수행되는 방법. - 제 23 항에 있어서,
화학적 포획이 (i) 피브린/피브리노겐-결합 잔기 및 (ii) 표적 분자 또는 입자를 지향하는 물질-포착 잔기로 이루어진 분자를 포함하는 방법. - 제 23 항에 있어서,
피브리노겐이 표적 분자 또는 입자를 지향하는 포착 잔기 도메인을 갖는 피브리노겐 융합 단백질인 방법. - 제 24 항에 있어서,
피브린/피브리노겐-결합 잔기가 트롬빈, 피브로넥틴, 세균성 피브리노겐-결합 단백질, 조직형 플라스미노겐 활성화인자 및 인테그린으로 이루어진 군 및 상기 군의 임의의 구성원으로부터 유도된 잔기에서 선택되는 방법. - 제 24 항에 있어서,
표적 분자 또는 입자를 지향하는 물질-포착 잔기가 상기 표적 분자 또는 입자를 특이적으로 인식하도록 고안된 항체, 핵산 및 앱타머로 이루어진 군에서 선택되는 방법. - 삭제
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- 제 1 항 내지 제 9 항 및 제 12 항 내지 제 27 항중 어느 한 항에 있어서,
표적 분자 또는 입자가 세균, 바이러스, 효모, 단백질, 펩티드 및 핵산으로부터 선택된 하나 이상을 포함하는 방법.
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CH12072011 | 2011-07-20 | ||
PCT/IB2011/054035 WO2012035508A2 (en) | 2010-09-15 | 2011-09-15 | Method for separating target molecules or particles from fibrinogen-containing samples including blood components |
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JP6179955B2 (ja) | 2011-06-27 | 2017-08-16 | エモリー ユニバーシティ | 血小板溶解物の組成物、用途および調製 |
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AU2017230806B2 (en) | 2016-03-10 | 2021-06-24 | Arthrex, Inc. | Systems and methods for preparing a thrombin serum |
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