KR20150006477A - 단일-뉴클레오타이드 kras 돌연변이에 특이적인 이-기능성 짧은-헤어핀 rna (bi-shrna) - Google Patents
단일-뉴클레오타이드 kras 돌연변이에 특이적인 이-기능성 짧은-헤어핀 rna (bi-shrna) Download PDFInfo
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Abstract
Description
도 1은, 시험 벡터의 한 도식을 도시한다. 야생형 KRAS의 처음 17개 아미노산이 psiCHECK2 벡터의 레닐라 루시페라제 유전자(hRluc)의 아미노-말단에 삽입되었고, 한편, G12D, G12V, G12R, 또는 G12C KRAS 돌연변이체의 처음 17개 아미노산은, 동일한 벡터 상의 반딧불이(Firefly) 루시페라제 유전자(hluc+)의 아미노-말단에 삽입되었다.
도 2는, 시험 벡터의 야생형 및 돌연변이체 발현의 효과를 도시한다. 각각의 시험 벡터의 야생형(Wt) 및 돌연변이체(Mu) 발현을, 이원-Glo(Dual-Glo) 루시페라제 검정 시스템(Promega)을 사용하여 모 psiCHECK2 벡터와 비교하였다. Wt 대 Mu 발현 비교는 레닐라(RL) 대 반딧불이(FF)의 발현비로 평가되었다.
도 3a 내지 도 3c는 본 발명의 검정 시스템의 실증이다. 이기능성 shRNA(bi-shRNA) 발현 벡터(86, 87, 88, 89, 90, 91 또는 92, 각각 서열번호 1 내지 서열번호 7)로 시험 벡터를 동시-형질감염시킴으로써, 돌연변이체 대 야생형의 우선적 녹다운(도 3a)이 FF 대 RL 비율로 신속히 평가될 수 있다(패널 a). 돌연변이체 또는 야생형의 녹다운은, FF(도 3b) 또는 RL(도 3c)의 RLU를 빈(empty) 벡터 대조군(C)과 비교함으로써 개별적으로 추가로 분석될 수 있다.
도 4는 다양한 돌연변이체에 대한 위치 효과를 도시한다. G12D 돌연변이체에 대해 특이적인 bi-shRNA 작제물은, 단일 돌연변이된 뉴클레오타이드 서열을 가이드 가닥의 처음 11개 위치들 중 하나에 배치시킴으로써 비교되었다. 야생형(wt) 및 돌연변이체(mu)에 대한 녹다운 백분율은 각각의 작제물에 대해 평가되었다. (n=3).
도 5는, 소정 미스매치가 도입되는 경우 녹다운 효능을 감소시킨 비교를 도시한다. 중심 영역에 돌연변이된 뉴클레오타이드를 갖는 G12D 작제물(p9, p10, 및 p11)은, 씨드(seed) 영역에, 또는 돌연변이된 뉴클레오타이드에 대한 병치로, 추가의 미스매치를 갖는 작제물과 비교하였다: 야생형(wt) 및 돌연변이체(mu). (n=3)
도 6은 G12D, G12V, G12R, 및 G12C에 대한 작제물의 위치 3 또는 4에 대한 선택적 녹다운을 도시한다. 돌연변이체 녹다운의 이점은, 4개의 돌연변이체 각각에 대해 특이적인 모든 시험 벡터에 대한, G12D, G12V, G12R, 및 G12C에 대한 위치 3 또는 4 bi-shRNAi 작제물 모두에 대해 비교하였다. 빈 벡터 대조군 샘플(샘플 C, 가로지르는 막대)을 초과하는 돌연변이체 대 야생형 비율은, 특정 돌연변이체 대립유전자에 대한 강력한 녹다운 이점을 나타낸다.
도 7a 내지 도 7c는 bi-shRNA 형질감염된 세포에서 KRAS 발현의 웨스턴 면역블롯 분석을 도시한다. HEK-293(WT), PANC-1(G12D 대립유전자) 및 MiaPaCa(G12C 대립유전자)는, 다양한 돌연변이체 표적화 bi-shRNA 작제물로 형질감염시켰다. 형질감염 48시간 후에 수거된 세포 추출물을 웨스턴 면역블롯으로 반-정량적으로 분석하였다. (도 7a) PANC-1 세포는 G12D 표적화 작제물로 형질감염시켰다. (도 7b) G12D 작제물을 3개의 세포주를 사용하여 KRAS 녹다운에 대해 비교한다. (도 7c) G12C 작제물을 3개의 세포주를 사용하여 KRAS 녹다운에 대해 비교한다.
도 8은, 탠덤(tandem)으로의 6개의 miRNA를 갖는 miR-17-92 클러스터를 도시하는 도면이다.
도 9는, 단일 대응물과 녹다운 효능을 비교하기 위해, 리포터 시험 벡터를 사용하여 시험된 삼중 작제물의 결과를 도시한다.
도 10은, 본 발명의 하나 이상의 이기능성 shRNA를 포함하는 세포를 제조하는 도식을 도시한다.
도 11은, miR-17-92 갭 서열을 갖는 삼중 작제물(pGBI-129 및 pGBI-130)은 돌연변이체를 녹다운시킬 수 있고(레인 4 및 5), 한편, miR-17-92 골격 서열을 갖는 삼중 작제물(pGBI-131 및 pGBI-132)은 돌연변이체를 매우 효과적으로 녹다운시킬 수 있다(레인 6 및 7)는 사용 결과를 도시한다.
Claims (49)
- K-ras 유전자의 발현을 감소시킬 수 있는 이기능성(bi-functional) shRNA(short-hairpin RNA: 짧은 헤어핀 RNA)로서, 상기 이기능성 RNA 분자의 하나 이상의 표적 부위 서열은 상기 K-ras 유전자 내에 위치되고, 상기 이기능성 RNA 분자는, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵(silencing) 복합체를 활성화시킬 수 있는, 이기능성 shRNA.
- 제1항에 있어서, 상기 이기능성 shRNA가, 서열번호 1 내지 22 또는 53 내지 56에 의해 정의되는 하나 이상의 서열을 포함하는, 이기능성 shRNA.
- 제1항에 있어서, 상기 이기능성 shRNA가, 서열번호 31 내지 52에 의해 정의되는 하나 이상의 서열을 포함하는, 이기능성 shRNA.
- 제1항에 있어서, 하나 이상의 표적 부위 서열이 사람 K-ras 유전자 cDNA 서열(서열번호 27 내지 30) 내에 존재하는, 이기능성 shRNA.
- 제1항에 있어서, 상기 K-ras가, 돌연변이된 K-ras인, 이기능성 shRNA.
- 프로모터; 및
상기 프로모터에 작동적으로 연결된 핵산 삽입물을 포함하는 발현 벡터로서,
상기 삽입물은, RNA 간섭을 통해, K-ras 유전자인 하나 이상의 표적 유전자의 발현을 저해할 수 있는 하나 이상의 shRNA를 암호화하고;
상기 하나 이상의 shRNA는, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시키는 이기능성 RNA 분자를 포함하는, 발현 벡터. - 제6항에 있어서, 상기 표적 유전자 서열이 서열번호 1 내지 5를 포함하는, 발현 벡터.
- 제6항에 있어서, 상기 shRNA를 위한 서열 정렬이, K-ras-TA-15 뉴클레오타이드 루프-19 뉴클레오타이드 표적 상보적 서열-3' 스템 아암-스페이서-5' 스템 아암-19 뉴클레오타이드 표적 변이체-TA-15 뉴클레오타이드 루프-19 뉴클레오타이드 표적 상보적 서열-3' 스템 아암인, 5' 스템 아암-19 뉴클레오타이드 표적을 포함하는, 발현 벡터.
- 제6항에 있어서, 상기 핵산 삽입물이, 서열번호 6 내지 27 또는 53 내지 56으로부터 선택되는 하나 이상의 서열을 포함하는, 발현 벡터.
- 제6항에 있어서, 상기 벡터가, 하나 이상의 돌연변이된 K-ras 유전자의 발현을 감소시킬 수 있는 이기능성 shRNA 삽입물들의 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 21, 25, 50, 75 또는 100개의 카피를 포함하는, 발현 벡터.
- 제6항에 있어서, 하나 이상의 shRNA가, 돌연변이된 K-ras 유전자 cDNA 서열 내에 존재하는 표적 부위 서열을 갖는, 발현 벡터.
- 치료학적 제제 담체; 및
프로모터 및 상기 프로모터에 작동적으로 연결된 핵산 삽입물을 포함하는 발현 벡터를 포함하는, 치료학적 전달 시스템으로서,
상기 핵산 삽입물은, RAN 간섭을 통해, K-ras 유전자인 표적 유전자 서열의 발현을 저해할 수 있는 하나 이상의 짧은 헤어핀 RNA(shRNA)를 암호화하고;
상기 하나 이상의 shRNA는, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시키는 이기능성 RNA 분자를 포함하는, 치료학적 전달 시스템. - 제12항에 있어서, 상기 치료학적 제제 담체가, 압축된(compacted) DNA 나노입자, 또는 하나 이상의 다가 양이온(polycation)을 갖는 압축된 DNA 나노입자인, 전달 시스템.
- 제13항에 있어서, 상기 하나 이상의 다가 양이온이, 10kDA 폴리에틸렌 글리콜(PEG)-치환된 시스테인-리신 3-mer 펩타이드(CK30PEG10k)인, 전달 시스템.
- 제13항에 있어서, 상기 압축된 DNA 나노입자가, 리포솜, 가역적으로 차폐된 리포솜, 또는 이층상 함입 소포(BIV) 중 하나 이상으로 추가로 캡슐화되는, 전달 시스템.
- 제12항에 있어서, 상기 표적 유전자 서열이 서열번호 27 내지 30을 포함하는, 전달 시스템.
- 제12항에 있어서, 상기 핵산 삽입물이, 서열번호 31 내지 52로부터 선택되는 하나 이상의 서열을 포함하는, 전달 시스템.
- 제12항에 있어서, 상기 핵산 삽입물이, 서열번호 1 내지 22 또는 53 내지 56으로부터 선택되는, 전달 시스템.
- K-ras 유전자를 발현하는 표적 조직에 하나 이상의 shRNA를 전달하는 방법으로서,
프로모터, 및 상기 프로모터에 작동적으로 연결된, 하나 이상의 shRNA를 암호화하는 핵산 삽입물을 포함하는 발현 벡터를 제조하는 단계(여기서, 상기 하나 이상의 shRNA는, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시키는 이기능성 RNA 분자를 포함한다);
상기 발현 벡터를, 리포솜을 포함하는 치료학적 제제 담체와 결합시키는 단계; 및
상기 발현 벡터와 치료학적 제제 담체와의 복합체의 투여를 필요로 하는 환자에게 상기 발현 벡터와 치료학적 제제 담체와의 복합체의 치료학적 유효량을 투여하는 단계
를 포함하는, K-ras 유전자를 발현하는 표적 조직에 하나 이상의 shRNA를 전달하는 방법. - 제19항에 있어서, 상기 치료학적 제제 담체가, 압축된 DNA 나노입자인, 방법.
- 제20항에 있어서, 상기 DNA 나노입자는, 하나 이상의 다가 양이온들에 의해 압축된 것이고, 여기서, 상기 하나 이상의 다가 양이온은, 10kDA 폴리에틸렌 글리콜(PEG)-치환된 시스테인-리신 3-mer 펩타이드(CK30PEG10k) 또는 30-mer 리신 축합 펩타이드를 포함하는, 방법.
- 제20항에 있어서, 상기 압축된 DNA 나노입자는, 하나 이상의 수용체 표적화 모이어티를 포함하는 이층상 함입 소포(BIV)인 리포솜 내로 추가로 캡슐화되는, 방법.
- 제22항에 있어서, 상기 하나 이상의 수용체 표적화 모이어티가, 소분자 2가 베타-회전 모사체를 포함하는, 방법.
- 제19항에 있어서, 상기 핵산 삽입물이, 서열번호 1 내지 22 또는 53 내지 56으로부터 선택되는 서열을 포함하는, 방법.
- 하나 이상의 표적 세포에서 K-ras 유전자의 발현을 저해하는 방법으로서,
상기 방법은,
상기 하나 이상의 표적 세포를 선택하는 단계; 및
상기 표적 세포를, RNA 간섭을 통해, 하나 이상의 표적 세포에서 K-ras 유전자의 발현을 저해할 수 있는 하나 이상의 짧은 헤어핀 RNA(shRNA)를 발현하는 벡터로 형질감염시키는 단계를 포함하고,
여기서, 상기 하나 이상의 shRNA는, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시키는 이기능성 RNA 분자를 포함하는,
하나 이상의 표적 세포에서 K-ras 유전자의 발현을 저해하는 방법. - 제25항에 있어서, 상기 shRNA가 siRNA(개열-의존적) 및 miRNA(개열-독립적) 모티프를 포함하는, 방법.
- 사람 피험자에서 종양 세포 성장을 억제하는 방법으로서,
상기 방법은,
종양 세포 성장 억제를 필요로 하는 사람 피험자를 확인하는 단계; 및
상기 사람 피험자에게 치료학적 제제 담체 중의 발현 벡터 복합체를 종양 세포 성장을 억제시키기에 충분한 양으로 투여하는 단계를 포함하고;
여기서, 상기 발현 벡터가, RNA 간섭을 통해, 하나 이상의 표적 세포 중의 돌연변이된 K-ras인 표적 유전자의 발현을 저해할 수 있는 하나 이상의 shRNA를 발현하며;
여기서, 상기 하나 이상의 shRNA가, 표적 유전자의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시키는 이기능성 RNA 분자를 포함하고;
여기서, 상기 저해는 아폽토시스, 저지된 증식, 또는 감소된 종양 세포의 침습을 초래하는,
사람 피험자에서 종양 세포 성장을 억제하는 방법. - 제27항에 있어서, 상기 치료학적 제제 담체가 이층상 함입 소포(BIV)를 포함하는, 방법.
- 제27항에 있어서, 상기 치료학적 제제 담체가, 소분자 2가 베타-회전 모사체를 포함하는 하나 이상의 수용체 표적화 모이어티를 포함하는, 방법.
- 제27항에 있어서, 상기 투여가, 종양내, 피하, 정맥내, 복강내, 근육내, 및 정맥내 주사로 이루어진 그룹으로부터 선택되는, 방법.
- 제27항에 있어서, 상기 투여가, DNA:리포플렉스를 이용한 주사를 포함하는, 방법.
- 제27항에 있어서, 상기 종양 세포 성장이, 돌연변이된 K-ras를 발현하는, 방법.
- 제27항에 있어서, 상기 종양 세포 성장이 사람 췌관 선암종인, 방법.
- 제27항에 있어서, 상기 종양 세포 성장이, 폐암, 결장암, 흑색종, 인슐린종, 중피종, 난소암, 및 췌장암으로 이루어진 그룹으로부터 선택되는, 방법.
- 제27항에 있어서, 상기 bishRNA가 서열번호 1 내지 22 또는 53 내지 56으로부터 선택되는, 방법.
- 제27항에 있어서, 제2 항-신생물제를 사용한 병용 치료요법을 추가로 포함하는, 방법.
- 제27항에 있어서, 세툭시마브 또는 베무라페니브를 사용한 병용 치료요법을 추가로 포함하는, 방법.
- 돌연변이체 K-ras 유전자의 발현을 감소시킬 수 있는 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 21, 25, 50, 75 또는 100개의 이기능성 shRNA 삽입물들을 포함하는 발현 벡터로서, 상기 이기능성 RNA 분자의 하나 이상의 표적 부위 서열은 상기 K-ras 유전자 내에 위치되고, 상기 이기능성 RNA 분자는, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시킬 수 있는, 발현 벡터.
- 제38항에 있어서, 상기 이기능성 shRNA가 서열번호 1 내지 22 또는 53 내지 56으로부터 선택되는, 발현 벡터.
- 제38항에 있어서, 상기 이기능성 shRNA가, G12D-G12V-G12R, G12C-G12D-G12R, G12D-G12V-G12R, 또는 G12C-G12D-G12R 중 하나 이상으로부터 선택되는 특정 K-ras 돌연변이를 표적화하는 삼중 삽입물을 포함하는, 발현 벡터.
- 제38항에서, 상기 이기능성 shRNA가, 서열번호 2, 18, 20, 21; 또는 서열번호 2, 18 및 20의 조합; 또는 서열번호 21, 2 및 18의 조합으로부터 선택되는 특정 K-ras 돌연변이를 표적화하는 삼중 삽입물을 포함하는, 발현 벡터.
- 돌연변이체 K-ras 유전자의 발현을 감소시킬 수 있는 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 20, 21, 25, 50, 75 또는 100개의 이기능성 shRNA 삽입물들을 포함하는 발현 단위를 포함하는 세포로서, 상기 이기능성 RNA 분자의 하나 이상의 표적 부위 서열은 상기 K-ras 유전자 내에 위치되고, 상기 이기능성 RNA 분자가, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시킬 수 있는, 세포.
- 제42항에 있어서, 상기 이기능성 shRNA가 서열번호 1 내지 22 또는 53 내지 56으로부터 선택되는, 세포.
- 제42항에 있어서, 상기 이기능성 shRNA가 야생형 K-ras의 발현을 증가시키는, 세포.
- 효과적으로 침묵되는 하나 이상의 돌연변이된 K-ras를 포함하는 세포들 또는 조직들을 치료하는데 유용한 것으로 생각되는 후보 약물을 평가하는 방법으로서,
(a) 하기 중 하나 이상을 측정하는 단계:
a. 상기 세포들 또는 조직들 중의 적어도 야생형 K-ras 및 하나 이상의 돌연변이된 K-ras 유전자들의 발현 수준;
b. 상기 암 세포들 또는 조직들 중의 하나 이상의 돌연변이된 K-ras 유전자들의 발현이 저하된 세포 환경에서 후보 유전자의 발현 수준 또는 후보 유전자들의 그룹의 발현 수준; 및
c. 상기 암 세포들 또는 조직들 중의 하나 이상의 돌연변이된 K-ras 유전자들의 저하된 발현으로 이루어진 이러한 세포들의 표현형에 대한 후보 약물의 효과;
(b) 상기 세포들 또는 조직들의 제1 서브세트에 후보 약물을 투여하고 상기 세포들 또는 조직들의 제2 서브세트에 위약을 투여하는 단계;
(c) 상기 후보 약물 또는 위약의 투여 후 단계 (a)를 반복하는 단계; 및
(d) 후보 약물이 K-ras 돌연변이체 발현 세포 환경과 비교하여, 돌연변이된 K-ras의 발현이 감소된 세포 환경에서, 세포들 또는 조직들의 제2 서브세트에서 발생하는 임의의 감소와 비교하여 통계학적으로 유의한, 결정된 표현형을 생성하는데 효과적인지를 측정하는 단계를 포함하고, 여기서, 통계학적으로 유의한 감소는, 상기 후보 약물이, 유의한 K-ras 돌연변이 배경 없이 질환을 치료하는데 유용하다는 것을 나타내는,
효과적으로 침묵되는 하나 이상의 돌연변이된 K-ras를 포함하는 세포 또는 조직을 치료하는데 유용한 것으로 생각되는 후보 약물을 평가하는 방법. - 제44항에 있어서, 상기 세포 또는 조직이, 야생형 K-ras 및 하나 이상의 돌연변이된 K-ras를 포함하도록 변형된 하나 이상의 검출가능한 유전자를 추가로 발현하고, 상기 검출가능한 표지물의 발현 수준이, 야생형 K-ras 및 하나 이상의 돌연변이된 K-ras에 대한 후보 물질의 효과와 상호 관련되는, 방법.
- 제44항에 있어서, 상기 세포 또는 조직이, K-ras 유전자의 발현을 감소시킬 수 있는 이기능성 shRNA를 발현하도록 변형되었고, 상기 이기능성 RNA 분자의 하나 이상의 표적 부위 서열이 K-ras 유전자 내에 위치되며, 상기 이기능성 RNA 분자가, K-ras의 발현 수준을 감소시키기 위해 개열-의존적 및 개열-독립적 RNA-유도된 침묵 복합체를 활성화시킬 수 있는, 방법.
- 제44항에 있어서, 상기 세포 또는 조직이 서열번호 1 내지 22 또는 53 내지 56으로부터 선택되는 이기능성 shRNA를 발현하도록 변형된, 방법.
- 제44항에 있어서, 상기 세포 또는 조직이, 서열번호 2, 18, 20, 21; 또는 서열번호 2, 18 및 20의 조합; 또는 서열번호 21, 2 및 18의 조합으로부터 선택되는 특정 K-ras 돌연변이를 표적화하는 하나 이상의 삽입물을 포함하는 이기능성 shRNA를 발현하도록 변형된, 방법.
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2013
- 2013-05-09 TW TW102116636A patent/TW201402813A/zh unknown
- 2013-05-09 SG SG11201407239SA patent/SG11201407239SA/en unknown
- 2013-05-09 AR ARP130101611A patent/AR091004A1/es unknown
- 2013-05-09 AU AU2013259387A patent/AU2013259387B2/en not_active Ceased
- 2013-05-09 CN CN201380036406.9A patent/CN104685055A/zh active Pending
- 2013-05-09 JP JP2015511715A patent/JP6283661B2/ja active Active
- 2013-05-09 CA CA2872930A patent/CA2872930A1/en not_active Abandoned
- 2013-05-09 US US13/890,957 patent/US9353373B2/en active Active
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- 2013-05-09 EP EP13788485.4A patent/EP2847333A4/en active Pending
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220085311A (ko) * | 2020-12-15 | 2022-06-22 | 주식회사 시선테라퓨틱스 | 펩티드 핵산 복합체를 유효성분으로 함유하는 췌장암 예방 또는 치료용 조성물 |
WO2022131744A1 (ko) * | 2020-12-15 | 2022-06-23 | 주식회사 시선테라퓨틱스 | 펩티드 핵산 복합체를 유효성분으로 함유하는 췌장암 예방 또는 치료용 조성물 |
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AU2013259387A1 (en) | 2014-11-20 |
EP2847333A4 (en) | 2015-12-16 |
CA2872930A1 (en) | 2013-11-14 |
AR091004A1 (es) | 2014-12-30 |
AU2013259387B2 (en) | 2016-12-15 |
WO2013170071A1 (en) | 2013-11-14 |
JP2015521040A (ja) | 2015-07-27 |
US9353373B2 (en) | 2016-05-31 |
IL235486A0 (en) | 2014-12-31 |
JP2017221198A (ja) | 2017-12-21 |
US20160333351A1 (en) | 2016-11-17 |
MX2014013475A (es) | 2015-05-15 |
TW201402813A (zh) | 2014-01-16 |
CN104685055A (zh) | 2015-06-03 |
JP6283661B2 (ja) | 2018-02-21 |
US20130302407A1 (en) | 2013-11-14 |
EP2847333A1 (en) | 2015-03-18 |
SG11201407239SA (en) | 2014-12-30 |
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