RNA-triggered cell killing with CRISPR-Cas12a2

최근 발견된 CRISPR-Cas12a2는 특정 RNA 인식 시 무차별적인 이중가닥 DNA 절단 활성을 발휘하여 효모와 인간 세포에서 목표 RNA를 발현하는 세포를 선택적으로 제거할 수 있다. Cas12a2는 표적 전사체에 의해 활성화되며, 오프타겟 활성화 없이 세포 사멸을 유도한다. 이를 활용해 인유두종바이러스 감염 세포, 유전자 편집 실패 세포, KRAS의 종양 유발 점 돌연변이 세포를 선택적으로 제거하는 데 성공했다. 기존 Cas9, Cas12a, Cas13 기반 방법들이 진핵세포에서 세포 사멸을 효과적으로 유도하지 못한 한계를 극복하는 새로운 CRISPR 도구로 주목된다.

https://www.nature.com/articles/s41586-026-10466-y

#crispr #cas12a2 #cellkilling #rnatriggered #geneediting

RNA-triggered cell killing with CRISPR–Cas12a2 - Nature

Cas12a2 enables RNA-triggered, sequence-specific killing of eukaryotic cells via widespread DNA shredding, allowing selective elimination of cells on the basis of gene expression, including virus-infected or mutation-bearing cells.

Nature

✂️ Typ CRISPRu nyní pozná rakovinu – a sekne jen ji! Nová varianta genového editoru CRISPR dokáže rozeznat nádorovou DNA podle chemických značek a cíleně ji přestřihnout – zdravé buňky nechává být. Zatím samože ale demonstrováno jenom na buňkách v labu. 🗞️

Víc na YT, link na kanál v bio 📺

#veda #crispr #cancer #zdravi

https://www.facebook.com/reel/768452329568595/

Viele Anwendungen in der Medizin, der #Biotechnologie oder der Landwirtschaft erfordern die gezielte Abtötung unerwünschter Zellen. Dabei kann es sich bspw. um Zellen handeln, die die Gesundheit gefährden, die Produktivität beeinträchtigen od. gewünschte biologische Prozesse stören. Forscher:innen des @Helmholtz_HIRI entwickelten nun gemeinsam mit Kooperationspartnern ein #CRISPR-basiertes Werkzeug, das Zellen gezielt beseitigen kann.
📷Liu Lab / University of Utah Health
https://www.helmholtz-hzi.de/media-center/newsroom/news-detailseite/wie-ein-molekulares-skalpell-neues-crispr-werkzeug-beseitigt-unerwuenschte-zellen-im-handumdrehen/

A novel #CRISPR/Cas based method selectively eliminates mutant cells expressing a target transcript through RNA-triggered DNA shredding. Robust in vitro performance, but in vivo cellular delivery remains the major hurdle.

#science

https://www.nature.com/articles/s41586-026-10466-y

RNA-triggered cell killing with CRISPR–Cas12a2 - Nature

Cas12a2 enables RNA-triggered, sequence-specific killing of eukaryotic cells via widespread DNA shredding, allowing selective elimination of cells on the basis of gene expression, including virus-infected or mutation-bearing cells.

Nature
Human Genome Pioneer J. Craig Venter Dies at 79. Via @sciencealert #Science #CRISPR 🔭🔬🧪🥼🧑‍🔬

Human Genome Pioneer J. Craig ...
Human Genome Pioneer J. Craig Venter Dies at 79

AP – J.

ScienceAlert
To lead in global innovation, Canada must prioritize basic science | The-14

Canada risks losing innovation leadership by underfunding basic science, increasing reliance on foreign research and weakening long-term progress.

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Innovation Group Lead - Biotechnology
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See the full job description on jobRxiv: https://jobrxiv.org/job/brentwood-school-27778-innovation-group-lead-biotechnology/

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Silvia Ribeiro, La pesadilla de la edición génica, CRISPR-Cas9, selección de genes, construcciones artificiales, límites de la naturaleza

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