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ヒト神経オルガノイドおよびアセンブロイドにおけるCRISPRスクリーニング
Xiangling Meng1,2, Noah Reis1,2, Michael C Bassik3
1Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA.
Nature protocols
|December 19, 2025
まとめ
この研究は、CRISPRスクリーニングと神経オルガノイドを組み合わせた新しいプロトコルを導入し、ヒト神経発生に影響を与える疾患遺伝子をマッピングする。このアプローチは、脳の発達と疾患メカニズムの理解を加速する。
科学分野:
- 神経科学
- 発生生物学
- 遺伝学
背景:
- ヒトの神経発生および関連疾患の理解は複雑です。
- 多能性幹細胞およびゲノム編集は、新しい研究の可能性を提供します。
- オルガノイドおよびアセンブロイドのようなインビトロモデルは、ヒトの神経発生の研究を可能にします。
研究 の 目的:
- プールされたCRISPR-Cas9スクリーニングと神経オルガノイドおよびアセンブロイドモデルを統合した詳細なプロトコルを提示すること。
- このプロトコルを疾患遺伝子から細胞経路および神経発生プロセスへのマッピングに適用することを示すこと。
- ヒトの脳の発達および疾患メカニズムの調査を促進すること。
主な方法:
- プールされたCRISPR-Cas9スクリーニングとヒト神経オルガノイドおよびアセンブロイドモデルの組み合わせ。
- 遺伝子摂動、スクリーニング、および候補遺伝子の検証の詳細なプロトコル。
- 幹細胞培養、神経分化、遺伝子工学、FACS、および次世代シーケンシングの専門知識の活用。
主要な成果:
- このプロトコルは、数百の疾患遺伝子を特定の細胞経路にマッピングすることを可能にします。
- ヒトの脳の発達モデルにおける神経細胞の生成、移動、統合の研究を可能にします。
- スクリーニング実験は、神経発生および疾患における遺伝子の役割に関する洞察を提供します。
結論:
- 遺伝子スクリーニングとヒト細胞モデルの統合プラットフォームは、脳の発達と疾患の研究に強力です。
- このアプローチは、疾患メカニズムと潜在的な治療標的の発見を加速します。
- 神経疾患の新しい治療法の発見への道を開きます。
関連する概念動画
CRISPR
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced Short...
Homologous Recombination
The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
CRISPR and crRNAs
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
CRISPR
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced Short...
The Antiviral System of Bacteria and Archaea: CRISPR
CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats is a adaptive immune system found in bacteria and archaea that protects against viral infections. This system enables prokaryotic cells to identify, remember, and neutralize foreign genetic elements, primarily bacteriophages, by storing fragments of the invader’s DNA as a genetic memory.The CRISPR immune response begins during an initial infection. Cas (CRISPR-associated) proteins play a central role in this defense.
CRISPR/Cas9 Genome Editing
The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...

