Video Experimental Relacionado
Updated: Sep 10, 2025

11:58
Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes
Published on: January 30, 2019
8.4K
Descubrimiento de pequeñas moléculas dirigidas al ARN: retos y direcciones futuras
Zhengguo Cai1, Hongli Ma2, Fengcan Ye3
1DP Technology Beijing China.
MedComm
|August 27, 2025
Resumen
Las pequeñas moléculas dirigidas al ARN ofrecen nuevas esperanzas para enfermedades difíciles de tratar. Los avances en la determinación de la estructura, los métodos computacionales y la IA están acelerando el descubrimiento de nuevas terapias basadas en ARN.
Área de la Ciencia:
- Descubrimiento y desarrollo de fármacos
- Biología molecular
- Química medicinal
Sus antecedentes:
- Las pequeñas moléculas dirigidas al ARN representan un avance significativo en el descubrimiento de fármacos.
- Ofrecen tratamientos potenciales para enfermedades que antes se consideraban no medicinables.
- Este campo está evolucionando rápidamente con nuevas metodologías y estrategias.
Objetivo del estudio:
- Revisar los avances recientes en el desarrollo de pequeñas moléculas de unión al ARN.
- Identificar los desafíos actuales y las direcciones de investigación futuras.
- Para resaltar el papel de la IA y el aprendizaje automático en este dominio.
Principales métodos:
- Las innovaciones en la determinación de la estructura del ARN (cristalografía de rayos X, RMN, crio-EM).
- Enfoques computacionales que incluyen aprendizaje profundo y acoplamiento molecular.
- Técnicas de detección como bibliotecas enfocadas, bibliotecas codificadas por ADN y descubrimiento de fármacos basados en fragmentos.
Principales resultados:
- Progreso significativo en el diseño racional de fármacos basado en la estructura del ARN.
- Mejora de la eficiencia en la predicción de la estructura del ARN y la detección de ligandos mediante herramientas computacionales.
- Las estrategias emergentes como los degradantes de ARN y los moduladores de interacción ARN-proteína muestran una promesa terapéutica.
Conclusiones:
- La inteligencia artificial y el aprendizaje automático son cruciales para acelerar el descubrimiento terapéutico dirigido al ARN.
- Se necesitan más investigaciones y colaboraciones para aprovechar todo el potencial de las pequeñas moléculas dirigidas al ARN.
- Estas moléculas podrían revolucionar los paradigmas de tratamiento en diversas enfermedades.
Videos de Conceptos Relacionados
Experimental RNAi
6.2K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
6.2K
siRNA - Small Interfering RNAs
17.0K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
17.0K
RNA Interference
26.4K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
26.4K
Types of RNA
64.8K
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
64.8K
Leaky Scanning
5.2K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.2K
Ribozymes
12.5K
The term ribozyme is used for RNA that can act as an enzyme. Ribozymes are mainly found in selected viruses, bacteria, plant organelles, and lower eukaryotes. Ribozymes were first discovered in 1982 when Tom Cech’s laboratory observed Group I introns acting as enzymes. This was shortly followed by the discovery of another ribozyme, Ribonulcease P, by Sid Altman’s laboratory. Both Cech and Altman received the Nobel Prize in chemistry in 1989 for their work on ribozymes.
Ribozymes can...
Ribozymes can...
12.5K

