KR20230126213A - 면역관문억제제를 이용한 암 치료방법 - Google Patents
면역관문억제제를 이용한 암 치료방법 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일 실시예에 따라 확인한 순환 종양 세포에서 EpCAM/Vimentin, PD-L1 및 CD18 단백질의 형광 강도를 측정한 이미지이다.
도 3은 본 발명의 일 실시예에 따라 환자의 혈액샘플에서 CD16과 CD18의 발현을 확인한 형광 이미지(A)와 이를 정량화한 그래프(B)이다.
도 4는 본 발명의 일 실시예에 따라 확인한 EpCAM/Vimentin, PD-L1 및 CD18의 세포수 및 형광강도에 대한 Heatmap이다.
Claims (19)
- 다음의 단계를 포함하는 면역항암제 적용을 위한 환자 선별방법:
(a) 혈중 순환 암세포에서 면역관문 단백질 및 림프계 또는 골수계 특이적 단백질의 발현을 확인하는 단계; 및
(b) 면역관문 단백질 발현이 양성이고, 림프계 또는 골수계 특이적 단백질의 발현이 양성으로 확인되는 환자를 면역항암제가 적용가능한 환자로 분류하는 단계. - 제1항에 있어서, 상기 면역관문 단백질은 PD-1, PD-L1 및 CTLA-4로 구성된 군에서 선택되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 림프계 또는 골수계 특이적 단백질은 CD18, CD16, CD29, CD61, CD104, CD32, CD11b 및 CD64로 구성된 군에서 선택되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 분리된 혈중 순환 암세포는 다음의 단계를 수행하여 분리되는 것을 특징으로 하는 방법:
(i) 암 환자로부터 혈액을 획득하는 단계; 및
(ii) 상기 혈액으로부터 바이오칩을 이용하여 혈중 순환 암세포를 분리하는 단계. - 제1항에 있어서, 상기 면역관문 단백질 및 림프계 또는 골수계 특이적 단백질의 발현은 다음의 단계를 수행하여 확인하는 것을 특징으로 하는 방법:
(1) 혈중 순환 암세포에 특이적으로 결합하는 형광표지자; 면역관문 단백질에 특이적으로 결합하는 형광표지자; 및 림프계 또는 골수계 특이적 단백질에 특이적으로 결합하는 형광표지지와 반응시키는 단계;
(2) 상기 형광표지자와 반응시킨 혈중 순환 암세포; 면역관문 단백질; 및 림프계 또는 골수계 특이적 단백질을 대상으로 복수 파장범위 각각에 대한 광학 이미지를 수신하는 단계;
(3) 상기 복수 파장범위 전체 또는 일부의 광학 이미지에서 상기 암 세포; 면역관문 단백질; 및 림프계 또는 골수계 특이적 단백질에 대한 형광강도를 측정하여 1차 필터링을 수행하는 단계;
(4) 상기 복수 파장범위 전체 또는 일부의 광학 이미지에서 상기 암 세포에 대한 모폴로지(morphology)를 측정하여 2차 필터링을 수행하는 단계; 및
(5) 상기 복수 파장범위 각각에 대한 광학 이미지 중 전체 또는 일부를 병합한 통합 이미지에서 상기 혈중 순환 암세포에 대한 모폴로지를 측정하여 3차 필터링을 수행하는 단계. - 제5항에 있어서, 상기 혈중 순환 암세포에 특이적으로 결합하는 형광표지자는 비멘틴(vimentin)에 특이적인 항체, EpCAM에 특이적인 항체 및 CK에 특이적인 항체로 구성된 군에서 선택되는 것을 특징으로 하는 방법.
- 제5항에 있어서, 상기 면역관문 단백질에 특이적으로 결합하는 형광표지자는 PD-1에 특이적인 항체, PD-L1에 특이적인 항체 및 CTLA-4에 특이적인 항체로 구성된 군에서 선택되는 것을 특징으로 하는 방법.
- 제5항에 있어서, 상기 림프계 또는 골수계 단백질에 특이적으로 결합하는 형광표지자는 CD18에 특이적인 항체, CD16에 특이적인 항체, CD29에 특이적인 항체, CD61에 특이적인 항체, CD104에 특이적인 항체, CD32에 특이적인 항체, CD11b에 특이적인 항체 및 CD64에 특이적인 항체로 구성된 군에서 선택되는 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 면역관문 억제제는 항체인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 면역관문 억제제는 단일클론 항체인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 면역관문 억제제는 인간 항체, 인간화 항체, 또는 키메라 항체인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 면역관문 억제제는 PD-L1 길항제, PD-1 길항제, 및 CTLA-4 길항제로 구성된 군에서 선택되는 어느 하나 이상인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 면역관문 억제제는 펨브로리주맙(Pembrolizumab, (키트루다(Keytruda)), 니볼루맙(Nivolumab, (옵디보(Opdivo)), 세미플리맙(Cemiplimab, (립타요(Lybtayo)), 아테졸리주맙(Atezolizumab, (티센트릭(Tecentriq)), 아벨루맙(Avelumab, (바벤시오(Bacencio)), 더발루맙(Durvalumab, (임핀지(Imfinzi)), 이필리무맙(Ipilimumab, 여보이(Yervoy)) 및 트리멜리무맙(Tremelimumab)으로 구성된 군에서 선택되는 어느 하나 이상인 것을 특징으로 하는 방법.
- 제1항에 있어서, 상기 암은 상기 암은 폐암, 신장암, 방광암, 유방암, 결장직장암, 난소암, 췌장 암, 위 암종, 식도암, 중피종, 흑색종, 두경부 암, 갑상선암, 육종, 전립선암, 교모세포종, 자궁경부암, 흉선 암종, 백혈병, 림프종, 골수종, 균상식육종, 머켈 세포 암, 또는 혈액성 악성종양으로 구성된 군에서 선택되는 것을 특징으로 하는 방법.
- 제14항에 있어서, 상기 암은 폐암인 것을 특징으로 하는 방법.
- 제14항에 있어서, 상기 암은 비소세포페암인 것을 특징으로 하는 방법.
- 다음의 단계를 포함하는 암 환자의 면역항암요법 선택 방법:
(a) 분리된 혈중 순환 암세포(circulating tumor cell, CTC)에서 면역관문 단백질 및 림프계 또는 골수계 특이적 단백질의 발현을 확인하는 단계; 및
(b) 면역관문 단백질 발현이 양성이고, 림프계 또는 골수계 특이적 단백질의 발현이 양성일 때, 면역관문 억제제를 치료요법으로 선택하는 단계. - 다음의 단계를 포함하는 암 치료방법:
(a) 혈중 순환 암세포에서 면역관문 단백질 및 림프계 또는 골수계 특이적 단백질의 발현을 확인하는 단계; 및
(b) 면역관문 단백질 발현이 양성이고, 림프계 또는 골수계 특이적 단백질의 발현이 양성일 때, 면역관문 억제제를 투여하는 단계. - 다음의 단계를 포함하는 면역관문 억제제에 대한 감수성(susceptibility) 결정방법:
(a) 혈중 순환 암세포에서 면역관문 단백질 및 림프계 또는 골수계 특이적 단백질의 발현을 확인하는 단계; 및
(b) 면역관문 단백질 발현이 양성이고, 림프계 또는 골수계 특이적 단백질의 발현이 양성일 때, 면역관문 억제제에 대한 감수성이 있는 것으로 결정하는 단계.
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