JP7410154B2 - 遺伝的に変異された細胞の死滅誘導組成物及び該組成物を用いた遺伝的に変異された細胞の死滅誘導方法 - Google Patents
遺伝的に変異された細胞の死滅誘導組成物及び該組成物を用いた遺伝的に変異された細胞の死滅誘導方法 Download PDFInfo
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Description
ゲノム配列の変異を含む細胞と正常細胞のWGSを比較して、ゲノム配列の変異を含む細胞特異的な変異配列を選別する段階;
前記選別された変異配列を認識する切断因子を製造する段階;
前記切断因子とヌクレアーゼを含む組成物を調製する段階;及び
ヌクレアーゼ及び切断因子を含む組成物を、ゲノム配列の変異を含む細胞に印加する段階を含む、ゲノム配列の変異を含む細胞の死滅誘導方法を提供する。
ゲノム配列の変異を含む細胞と正常細胞のWGSを比較して、ゲノム配列の変異を含む細胞特異的なindelを選別する段階;
前記選別されたindelを認識する切断因子を製造する段階;
前記切断因子とヌクレアーゼを含む組成物を調製する段階;及び
ヌクレアーゼ及び切断因子を含む組成物を、ゲノム配列の変異を含む細胞に印加する段階を含む、ゲノム配列の変異を含む細胞の死滅誘導方法を提供する。
数個のDSBが細胞死滅を誘導でき、全ての癌細胞は固有のIn/Del配列を有するということから、HCT116、U2OS、及びREP1細胞において固有のIn/Del配列をWGS(whole genome sequencing)によって確認した。その後、次の表1~表3のように、癌細胞が持つ固有のDNA挿入(insertion)配列中に6~8bpdml挿入サイズで染色体上に均一に広がっている部位を30個選定して細胞株別crRNAを作製し、CRISPR RNP複合体で細胞に形質感染させた後、crRNA特異性及び細胞生存度を確認した。
実施例1で作製されたcrRNAを用いてCRISPRシステムが作動するか否かを調べるために、in vitro切断アッセイ(cleavage assay)を行った。まず、PCRによって挿入配列(insertion sequence)の前後部分のDNAを500bpサイズに増幅して精製後に、作製されたcrRNAを用いてCRIPSRシステムによるDNAの切断がなされるか確認した。
大腸癌HCT116細胞と骨肉腫U2OS細胞に30個の特異的RNP(ribonucleotide protein)複合体を形質感染してDNA DSBを誘導した後、細胞の生長率をコロニー形成アッセイ(colony forming assay)によって確認した。
WGS(whole genome sequencing)を用いて、saCas9に対する新規なU2OS細胞株特異的crRNAを設計してAAVにパッケージングした。U2OS細胞株特異的crRNAの具体的配列は、次の通りである。
患者由来膠芽細胞腫からINDELによる細胞死滅効果を確認した。細胞を低酸素チャンバーで培養した以外は、実施例4と同じ方法で実験した。膠芽細胞腫に使用可能な配列は16個だけであった。16個の膠芽細胞腫特異的配列による選択的細胞死滅を確認するということは、16個のDNA DSBのみを生成させることができることを意味する。
ATMキナーゼ抑制剤を含有又は非含有するAAV粒子を実施例5の膠芽細胞腫細胞に形質導入し、実施例4及び実施例5と同じ方法で実験した。24時間の形質導入後、細胞を室温で10分間1%メチレンブルーで染色した。細胞をPBSで3回10分間洗浄し、室温で乾燥させた。細胞を500ulの10%酢酸溶液で脱色し、ODを測定した。結果を図11に示した。
癌特異的INDEL誘導細胞死滅(CINDELA)効果を確認するために、患者由来の肺癌組織をマウス異種移植に使用した。患者由来の肺癌組織をマウスに挿入し、28個の肺癌組織特異的crRNAを含むAAV粒子をマウスに連続して注射した。
Claims (12)
- Cas又はCasをコードする核酸、及び
ゲノム配列の変異を含む細胞固有の変異配列を含む複数の核酸配列を特異的に認識する、別の核酸配列を有する10~30のガイドRNA
を含む、ゲノム配列の変異を含む細胞の死滅誘導における使用のための組成物。 - 前記Cas又は前記Casをコードする核酸又はガイドRNAが、ベクター及び/又はリボ核タンパク質の形態で伝達される、請求項1に記載の使用のための組成物。
- 前記ガイドRNAが癌特異的挿入及び/又は欠失を含む核酸配列を特異的に認識する、請求項1に記載の使用のための組成物。
- 前記細胞が、正常細胞には見られないゲノム配列の変異を有する、請求項1に記載の使
用のための組成物。 - 前記ガイドRNAのターゲットが、ゲノム配列の変異を含む細胞及び正常細胞の全ゲノムシークエンス(whole genome sequencing;WGS)を行うことによって選択される、請求項1に記載の使用のための組成物。
- ゲノム配列の変異を有する細胞が、癌細胞である、請求項1に記載の使用のための組成
物。 - 前記Casは、Cas9であり、そして、前記Cas9は、コリネバクター(Corynebacter)、ステレラ(Sutterella)、レジオネラ(Legionella)、トレポネーマ(Treponema)、フィリファクター(Filifactor)、ユーバクテリウム(Eubacterium)、ストレプトコッカス(Streptococcus)、ラクトバシラス(Lactobacillus)、マイコプラズマ(Mycoplasma)、バクテロイデス(Bacteroides)、フラビイボラ(Flaviivola)、フラボバクテリウム(Flavobacterium)、アゾスピリラム(Azospirillum)、グルコンアセトバクター(Gluconacetobacter)、ナイセリア(Neisseria)、ロゼブリア(Roseburia)、パービバキュラム(Parvibaculum)、スタフィロコッカス(Staphylococcus)、ニトラティフラクター(Nitratifractor)、コリネバクテリウム(Corynebacterium)及びカンピロバクター(Campylobacter)からなる群から選ばれるCas9のオルソログ(ortholog)を含む微生物属に由来し、これらから分離されたもの又は組み換えられたものであることを特徴とする、請求項1に記載の使用のための組成物。
- 前記組成物は、ゲノム配列の変異を含む細胞固有の挿入及び/又は欠失を含む核酸配列部位に二重鎖切断(Double-stranded break,DSB)を誘導して細胞を死滅させることを特徴とする、請求項1に記載の使用のための組成物。
- Caffeine、Wortmannin、CP-466722、KU-55933、KU-60019、及びKU-559403からなる群から選ばれる一つ以上のATM(Ataxia telangiectasia mutated)阻害剤、Schisandrin B、NU6027、NVP-BEZ235、VE-821、VE-822(VX-970)、AZ20、及びAZD6738からなる群から選ばれる一つ以上のATR(Ataxia telangiectasia and Rad-3mutated)阻害剤、又はDNA-PKcs(DNA-dependent protein kinase catalytic subunit)のDNA二重螺旋修復阻害剤をさらに含む、請求項1に記載の使用のための組成物。
- Cas又は前記Casをコードする核酸、及び
ゲノム配列の変異を含む細胞固有の変異配列を含む複数の核酸配列を特異的に認識する、別の核酸配列を有する10~30のガイドRNA
を含む、組成物の製造方法であって、
前記ガイドRNAが、
ゲノム配列の変異を含む細胞及び正常細胞の全ゲノムシークエンス(whole genome sequencing;WGS)を行うこと;
ゲノム配列の変異を含む細胞及び正常細胞の全ゲノムシークエンス(WGS)を比較して、ゲノム配列の変異を含む細胞特異的な変異配列を選別すること;及び
前記選別された変異配列を認識するガイドRNAを製造すること、
によって選択される、組成物の製造方法。 - Cas又は前記Casをコードする核酸、及びゲノム配列の変異を含む細胞固有の変異配列を含む複数の核酸配列を特異的に認識する、別の核酸配列を有する10~30のガイドRNAを含む、組成物の製造方法であって、
前記ガイドRNAが、
ゲノム配列の変異を含む細胞及び正常細胞の全ゲノムシークエンス(whole genome sequencing;WGS)を行うこと;
ゲノム配列の変異を含む細胞及び正常細胞の全ゲノムシークエンス(WGS)を比較して、ゲノム配列の変異を含む細胞特異的な挿入及び/又は欠失を選別すること;及び
前記選別されたゲノム配列の変異を含む細胞特異的な挿入及び/又は欠失を認識するガイドRNAを製造すること、
によって選択される、組成物の製造方法。 - Cas又は前記Casをコードする核酸、及び
患者のゲノム配列の変異を含む細胞固有の変異配列を含む複数の核酸配列を特異的に認識する、別の核酸配列を有する10~30のガイドRNA
を含む、患者特異的癌の治療における使用のための組成物。
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| KR20180109214 | 2018-09-12 | ||
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| PCT/KR2019/011866 WO2020055187A1 (ko) | 2018-09-12 | 2019-09-11 | 유전자가 변이된 세포의 사멸 유도 조성물 및 상기 조성물을 이용한 유전자가 변형된 세포 사멸 유도 방법 |
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| CN115397997A (zh) * | 2020-12-23 | 2022-11-25 | 浙江大学 | 侵染性植物弹状病毒载体及无转基因植物基因组定点编辑的方法 |
| US12171813B2 (en) | 2021-02-05 | 2024-12-24 | Christiana Care Gene Editing Institute, Inc. | Methods of and compositions for reducing gene expression and/or activity |
| CN113897386A (zh) * | 2021-08-03 | 2022-01-07 | 南京景瑞康分子医药科技有限公司 | 一种利用rna干扰机制诱导多位点切割基因组实现选择性杀死细胞的dna系统 |
| KR20250157970A (ko) * | 2024-04-26 | 2025-11-05 | 카스큐어테라퓨틱스 주식회사 | 표적 세포 사멸 방법 |
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| CA2801448A1 (en) * | 2010-06-04 | 2011-12-08 | Oncothyreon Inc. | Cancer treatment with wortmannin analogs |
| CN108685922A (zh) * | 2011-09-30 | 2018-10-23 | 沃泰克斯药物股份有限公司 | 用atr抑制剂治疗胰腺癌和非小细胞肺癌 |
| AU2013335451C1 (en) * | 2012-10-23 | 2024-07-04 | Toolgen Incorporated | Composition for cleaving a target DNA comprising a guide RNA specific for the target DNA and Cas protein-encoding nucleic acid or Cas protein, and use thereof |
| CN106536739B (zh) * | 2014-04-14 | 2021-08-03 | 内梅西斯生物有限公司 | 治疗剂 |
| WO2016014148A1 (en) * | 2014-07-23 | 2016-01-28 | Mayo Foundation For Medical Education And Research | Targeting dna-pkcs and b7-h1 to treat cancer |
| JP6814155B2 (ja) * | 2014-12-12 | 2021-01-13 | ジュー,ジェイムズ | 対象とする細胞を選択的に除去する方法及び組成物 |
| CN108025074A (zh) | 2015-07-25 | 2018-05-11 | 哈比卜·弗罗斯特 | 用于为癌症和其他病理状态提供治疗或治愈的系统、装置和方法 |
| GB2592821B (en) * | 2015-07-31 | 2022-01-12 | Univ Minnesota | Modified cells and methods of therapy |
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| US10240145B2 (en) * | 2015-11-25 | 2019-03-26 | The Board Of Trustees Of The Leland Stanford Junior University | CRISPR/Cas-mediated genome editing to treat EGFR-mutant lung cancer |
| CN107303291A (zh) * | 2016-04-18 | 2017-10-31 | 无锡杰西医药股份有限公司 | 含peitc的药物组合物及其在癌症治疗中的应用 |
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| KR102437228B1 (ko) * | 2016-11-14 | 2022-08-30 | 주식회사 툴젠 | 인위적으로 조작된 sc 기능 조절 시스템 |
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- 2025-08-01 US US19/288,975 patent/US20260022405A1/en active Pending
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| KR20200084843A (ko) | 2020-07-13 |
| KR20200030474A (ko) | 2020-03-20 |
| WO2020055187A1 (ko) | 2020-03-19 |
| EP3851528A4 (en) | 2023-12-06 |
| KR102810580B1 (ko) | 2025-05-23 |
| CA3111477A1 (en) | 2020-03-19 |
| US20220049274A1 (en) | 2022-02-17 |
| EP3851528A1 (en) | 2021-07-21 |
| KR102131869B1 (ko) | 2020-07-09 |
| US20260022405A1 (en) | 2026-01-22 |
| KR20250085677A (ko) | 2025-06-12 |
| EA202190758A1 (ru) | 2021-08-03 |
| AU2019341000B2 (en) | 2023-03-16 |
| AU2019341000A1 (en) | 2021-05-20 |
| JP2022502481A (ja) | 2022-01-11 |
| CN112955550A (zh) | 2021-06-11 |
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