KR102534195B1 - 암 모델링 플랫폼 및 그를 사용하는 방법 - Google Patents
암 모델링 플랫폼 및 그를 사용하는 방법 Download PDFInfo
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Abstract
Description
도 2는 패널 A) 상단부터 하단까지: 도관(tubing), 유체 유입구(inlet) 및 유출구(outlet)를 갖는 폴리스티렌(PS) 슬라이드, 오가노이드를 위한 챔버 및 상응하는 유체 유입구 및 유출구를 갖는 접착 필름(adhesive film), 유리 슬라이드, 및 포토마스크(photomask) 층인 미세유체 장치 층의 조립의 모식도; 패널 B) 인 시투 패터닝 기법(In situ patterning technique): 미세유체 챔버(i)에 HA 히드로겔, 광개시제, 및 종양 세포를 포함하는 히드로겔 혼합물(ii)을 채우고 포토마스크(iii)를 통해 UV 조사에 노출시킨다. 노출시킨 히드로겔을 가교시키고(iv), 깨끗한 완충액을 이용하여 비-가교 겔(v)을 플러싱(flush)한다. 플러싱 완충액을 최종적으로 인큐배이션을 위해 배지(vi)로 교체한다; 패널 C) 컴퓨터-조절 정량 펌프(computer-controlled peristaltic pump)에 의해 촉진되는, 각 오가노이드를 위한 저-용량, 폐쇄 유체 회로(low-volume, closed loop fluidic circuit)를 특징으로 하는, 전체 측정 셋-업(total measurement set-up); 및 패널 D) 각각 93.9% 및 86.4%의 퍼센트 생존력을 보여주는, 탑재(onboard) 7일차 및 14일차의 LIVE/DEAD 분석 후 종양 구조체의 최대 투사 공초점 이미지(maximum projection confocal image) 및 세분화 이미지(segmented image)를 보여준다.
도 3은 LIVE/DEAD 분석 후 종양 구조체의 최대 투사 공초점 이미지인 패널 a-f(i), 및 Imaris 소프트웨어를 이용한 세분화 이미지인 패널 a-f(ii)를 보여준다. 중간 회색(medium grey)은 죽은 세포를 나타내고, 연한 회색(light grey)은 살아있는 세포를 나타낸다. 패널 a)는 >90% 생존력을 갖는 1주차 대조군(control) 이미지이고, 패널 b)는 2주차 대조군이며, 패널 c & d)는 7일 동안 카르보플라틴 및 페메트렉세드(premetrexed) 약물의 영향 하의 구조체를 보여주고; 패널 e & f)는 7일 동안 시스플라틴 및 페메트렉세드 약물의 영향 하의 구조체를 보여준다. 패널 g)는 대조군 및 약물 처리 오가노이드에 대한 세분화 이미지로부터 유래된 생존력(살아있는 세포/죽은 세포) 측정값의 그래프를 보여준다. 약물 노출은 7일 차에 개시했다. 유의성: * p<0.1, ** p<0.05, *** p<0.01.
도 4는 환자-유래 종양 구조체에서 바이오마커-기반(biomarker-driven) 치료제 스크리닝을 보여준다. 패널 A) 종양 생검 시료의 유전자 분석은 두 개의 돌연변이, PBRM1 및 BAP1을 확인했다. BAP1 돌연변이는 EZH2 억제제 DZNep에 의해 표적화될 수 있는 것으로 확인되었다. 패널 B) MTS 미토콘드리아 대사 분석은 감소된 세포 개수에 비례하여, 감소된 미토콘드리아 대사를 초래한 DZNep 약물 처리에 비해, 대조군 오가노이드가 가장 증식적이라는 것을 보여준다. 반대로, HCT116 오가노이드는 DZNep에 부정적으로(negatively) 반응하는 것을 보이지 않는다. 패널 C-D) 추가적으로, Annexin V 및 Ki67 바이오마커 이미지를 이용하여, 모든 약물 처리는 Ki67에 대한 Annexin V의 더 높은 비율을 가져서, 더 많은 양의 아폽토시스 세포를 나타낸다는 것을 보여주는 분석을 수행했다. Annexin V 및 Ki67 형광 바이오마커의 대표적 이미지가 DZNep 처리에 대해 도시된다. 적색 염색(red stain) (흑백 이미지의 중간 회색) - annexin V; 녹색 염색 (흑백 이미지의 연한 회색) - Ki67. 스케일 바(scale bar)는 100㎛를 나타낸다. 패널 E-F) 헤마톡실린 및 에오신(hematoxylin and eosin)이 염색된 오가노이드 절편(section)은, DZNep 농도가 중피종 오가노이드에서 증가되면서, 정상 형태의 상실 및 무핵 유령세포(ghost cell with no nuclei)의 출현을 보여준다. 반대로, HCT116 세포는 이러한 용량 의존적 변화를 보이지 않아서, DZNep가 HCT116 오가노이드보다 중피종 오가노이드에서 보다 효과적으로 세포 사망을 유도한다는 것을 시사한다.
도 5는 배양이 어려운 것으로부터 유래된 살아있는 오가노이드를 보여준다. 패널 A) 저등급 충수(LGA) 및 패널 B) 고-분화(well-differentiated) 복막 유두상 중피종(peritoneal papillary mesothelioma). 패널 C) LGA 오가노이드는 임상에서 이미 의심되던 바와 같이, 치료에 반응하지 않고, 고등급 충수 종양 오가노이드(high grade appendiceal tumor organoid)는 반응한다. 패널 D) 희귀 육종(rare sarcoma)으로부터 생존 가능한 종양 오가노이드의 구축.
도 6은 2D Drug Study Protocol의 예시(illustration)를 보여준다. 패널 (A). 2차원 미세환경(two-dimensional microenvrionment)에서 다양한 농도의 항암 약물로 처리된 후, HCT116, HT29, CACO2, 및 SW480 결장암 세포의 퍼센트 상대적 세포 생존력 값. 패널 (B) A = 레고라페닙(Regorafenib)(μM), B = 소라페닙(Sorafenib)(μM), C = 트라메티닙(Trametinib)(nM), D = 5-FU (mM), E= 드라브라페닙(Drabrafenib)(μM).
도 7은 3D Drug Study Protocol의 예시를 보여준다. 패널 (A). 3차원 미세환경(two-dimensional microenvrionment)에서 다양한 농도의 항암 약물로 처리된 후, HCT116, HT29, CACO2, 및 SW480 결장암 세포의 퍼센트 상대적 세포 생존력 값. 패널 (B) A = 레고라페닙 (μM), B = 소라페닙 (μM), C = 트라메페닙 (nM), D = 5-FU (mM), E = 드라브라페닙(μM).
도 8은 HCT116 및 CACO2 결장암 세포주에 대한 레고라페닙, 소라페닙, 및 F-FU를 이용한 2D 및 3D 약물 스크리닝의 결과를 비교하는 그래프를 보여준다. p-값에 의해 결정된 유의성 있는 차이도 표지됨 (< 0.10 = *; < 0.05 = **; < 0.01 = ***).
도 9는 Ringed Organoid Drug Study Protocol의 예시를 보여준다. 패널 (A). 레고라페닙에 의한 HTC116의 표적화 세포 사망 및 5-FU에 의한 HCT116 및 CACO2의 공통 세포 사망(universal cell death)을 보여주는 현미경 이미지. 패널 (B) 녹색(흑백 이미지에서 연한 회색) 형광 염료(Calcein AM)는 살아있는 세포를 나타내고, 적색(흑백 이미지에서 중간 회색) 형광 염료(Ethidium Homodimer-1)는 죽은 세포를 나타낸다(스케일 바 = 200 ㎛). 패널 (C)는 레고라페닙 및 5-FU의 농도 각각에 대한 비율 및 대조군, 미처리 대비 비율의 그래프를 보여준다.
도 10은 미세유체 장치의 내부 구성요소 및 배지를 장치를 통해 순환시키는 외부 구성요소를 도시하는 도면이다.
도 11은 LIVE/DEAD 결과의 이미지를 보여주고, 상기 이미지는 카페시타빈을 그의 활성 5-FU 형태로 대사하여, 심장 오가노이드 및 폐 오가노이드에서 증가된 세포 사망을 유도하기 위해 간 오가노이드가 요구된다는 것을 보여준다.
도 12는 소형화(miniaturized) 시스템에서 LIVE/DEAD 결과의 이미지를 보여주고, 간이 존재하는 경우, 카페시타빈이 독성 약물인 5-FU로 대사되어, 심장 및 폐 독성을 유발한다는 것을 보여준다. 간이 없는 경우, 이 대사는 일어나지 않고, 심장 및 폐 오가노이드 생존력은 감소되지 않는다.
도 13은 표준 크기 시스템(standard size system) 및 소형화 시스템에서 초기 바이오마커 분석의 그래프를 보여준다.
도 14는 테이프 유체소자(tape fluidics) 및 접착 필름 및/또는 양면 테이프(DST), 폴리(메틸 메타크릴레이트)(PMMA), 및 폴리디메틸실록산(PDMS) 구성요소를 결합(incorporate)하는 하이브리드 마이크로반응기 제조(hybrid microreactor fabrication) 전략의 예시를 보여준다.
도 15는 본 발명의 양태에 따른 2개의 챔버를 갖는 예시적 장치의 상이한 구성요소 및/또는 도면(view)(패널 A-D)을 보여준다.
도 16은 본 발명의 양태에 따른 6개의 챔버를 갖는 장치의 예를 보여준다.
도 17은 본 발명의 양태에 따른 장치 구성(device configuration)의 개략도이다.
Claims (51)
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- 하기를 포함하는, 인 비트로에서 종양 세포를 평가하기에 유용한 장치:
살아있는 종양 세포 구조체를 포함하는 챔버;
상기 챔버와 유체 소통(fluid communication)되는 채널;
상기 챔버 및 상기 채널 중의 증식 배지;
상기 채널 내에, 상기 증식 배지가 상기 챔버로부터 관통해 흐를 수 있도록 배치된 미세다공성 막; 및
상기 챔버 및 채널과 결합된 유체 회로(circuit)로서, 상기 유체 회로는 작동 시에 상기 챔버, 채널 및 미세다공성 막을 통과한 다음 다시 상기 챔버로 돌아오는 유체 흐름을 제공하는 폐쇄 유체 시스템인 유체 회로. - 청구항 33에 있어서, 상기 종양 세포 구조체는 히드로겔을 포함하는 것인 장치.
- 청구항 33에 있어서, 상기 종양 세포 구조체는 단일 세포 종류로 구성되는 것인 장치.
- 청구항 33에 있어서, 상기 종양 세포 구조체는 결장암 세포, 중피종암 세포, 충수암 세포, 및/또는 육종암 세포를 포함하거나 또는 이들로 구성되는 것인 장치.
- 청구항 33에 있어서, 상기 챔버 및 상기 채널은 미세유체 장치 내에 위치하고, 상기 미세유체 장치의 적어도 일부는 투명하고, 상기 장치는 상기 미세다공성 막과 작동가능하게 결합되고 상기 미세다공성 막 상의 종양 세포를 검출하도록 구성된 검출기를 더 포함하는 것인 장치.
- 삭제
- 하기 단계를 포함하는, 인 비트로에서 전이 활성에 대해 종양 세포를 스크리닝하는 방법:
(a) 청구항 33의 장치를 제공하는 단계;
(b) 상기 장치에서 상기 배지를 순환시키는 단계; 및
(c) 상기 미세다공성 막 상에 포획된 종양 세포를 검출하는 단계로서, 더 많은 수의 포획된 종양 세포는 상기 종양 세포의 더 큰 전이 활성을 나타내는 것인 단계. - 삭제
- 삭제
- 삭제
- 하기 단계를 포함하는, 인 비트로에서 항-전이 및/또는 항-종양 활성에 대해 목적 화합물을 스크리닝하는 방법:
(a) 청구항 33의 장치를 제공하는 단계;
(b) 상기 장치에서 상기 배지를 순환시키는 단계;
(c) 상기 화합물을 상기 종양 세포에 투여하는 단계; 및
(d) 상기 미세다공성 막에 포획된 종양 세포를 검출하는 단계로서, 더 적은 수의 포획된 종양 세포는 상기 목적 화합물의 더 높은 항-전이 및/또는 항-종양 활성을 나타내는 것인 단계. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 청구항 43에 있어서, 상기 화합물이 인 비트로에서 상기 종양 세포의 전이를 감소시키고, 인 비트로에서 구조체 크기를 감소시키고, 인 비트로에서 종양 세포의 개수를 감소시키고, 및/또는 인 비트로에서 종양 세포 사망을 유도하는 것으로 결정되는 경우, 환자에게 상기 화합물을 치료-유효량으로 투여하는 단계를 더 포함하고, 상기 환자는 인간을 제외한 개체인 것인 방법.
- 삭제
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KR20190037297A (ko) | 2019-04-05 |
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