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Updated: Feb 14, 2026

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Kinetic Screening of Nuclease Activity using Nucleic Acid Probes
Published on: November 1, 2019
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Plataforma de detección de ácido nucleico multiplexada y portátil con Cas13, Cas12a y Csm6
Jonathan S Gootenberg1,2,3,4,5, Omar O Abudayyeh1,2,3,4,6, Max J Kellner1
1Broad Institute of the Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA 02142, USA.
Resumen
Mejoramos la plataforma SHERLOCK para la detección rápida de ácido nucleico. SHERLOCKv2 ofrece multiplexación, mayor sensibilidad y lecturas de flujo lateral para el diagnóstico.
Área de la Ciencia:
- Biología molecular
- Biotecnología
- La genética
Sus antecedentes:
- La detección rápida de ácido nucleico es crucial para el diagnóstico clínico y la biotecnología.
- La plataforma SHERLOCK, que utiliza Cas13, permite la detección de ARN y ADN sensibles.
Objetivo del estudio:
- Introducir SHERLOCK versión 2 (SHERLOCKv2) con mejoras significativas.
- Para mejorar las capacidades de multiplexación, sensibilidad y lectura de la plataforma SHERLOCK.
Principales métodos:
- Integración de la multiplexación de cuatro canales utilizando enzimas CRISPR ortogonales.
- Detección cuantitativa hasta 2 concentraciones atomolares de entrada.
- Combinación de Cas13 con Csm6 para un aumento de 3,5 veces la sensibilidad de la señal.
- Desarrollo de una lectura de flujo lateral para una detección simplificada.
Principales resultados:
- SHERLOCKv2 logró la multiplexación de cuatro canales en una sola reacción.
- Las mediciones cuantitativas demostraron una sensibilidad tan baja como 2 atomolares.
- La combinación Cas13-Csm6 aumentó significativamente la sensibilidad de la señal.
- Las lecturas de flujo lateral permitieron la detección del ARN del virus Dengue/Zika y las mutaciones del paciente.
Conclusiones:
- SHERLOCKv2 representa un avance significativo en la tecnología de detección de ácido nucleico.
- La plataforma es multiplejable, portátil, rápida y cuantitativa.
- SHERLOCKv2 muestra potencial para diversas aplicaciones de diagnóstico y biotecnología.
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