Video Experimental Relacionado
Updated: May 24, 2026
10:40
CRISPR Gene Editing Tool for MicroRNA Cluster Network Analysis
Published on: April 25, 2022
MicroARN en la señalización del estrés y las enfermedades humanas
Joshua T Mendell1, Eric N Olson
1Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX 75390-9148, USA. joshua.mendell@utsouthwestern.edu
Cell
|March 20, 2012
Resumen
Los microARN (miRNA) son reguladores clave de las respuestas al estrés celular, jugando un papel importante en el desarrollo de la enfermedad. Comprender las funciones del miRNA ofrece nuevas oportunidades terapéuticas para diversas patologías.
Área de la Ciencia:
- Biología Molecular Biología Molecular
- Biología celular Biología celular.
- Genética La genética.
Sus antecedentes:
- La enfermedad surge de respuestas inadecuadas al estrés fisiológico y fisiopatológico.
- Los microARN (miRNA) han surgido como reguladores críticos del comportamiento celular durante el estrés.
- Estos pequeños ARN juegan un papel importante en las condiciones patológicas.
Objetivo del estudio:
- Revisar los principios emergentes de la regulación del miRNA en las vías de señalización del estrés.
- Aplicar estos principios para comprender el papel de los miRNA en la enfermedad.
- Para resaltar los desafíos y oportunidades en las terapias basadas en miRNA.
Principales métodos:
- Revisión de la literatura científica reciente (los últimos 10 años) sobre la regulación del miRNA y las enfermedades.
- Análisis de las vías de señalización del estrés influenciadas por miRNAs.
- Discusión de disección mecanicista y estrategias de desarrollo terapéutico.
Principales resultados:
- Identificación de un paradigma recurrente donde los miRNA regulan las respuestas celulares al estrés.
- Elucidación de las funciones específicas del miRNA en diversos contextos de enfermedades.
- Destacando la complejidad de la función del miRNA y la orientación terapéutica.
Conclusiones:
- Los microARN son parte integral de las respuestas al estrés celular y la patogénesis de la enfermedad.
- La investigación adicional sobre los mecanismos de miRNA es crucial para el desarrollo de terapias efectivas.
- La orientación de los miARN presenta desafíos únicos y un potencial terapéutico significativo.
Videos de Conceptos Relacionados
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
01:31Regulation of the Unfolded Protein Response
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
01:17Role of ER in the Secretory Pathway
Eukaryotic cells have a special pathway that enables communication between various intracellular membrane-bound compartments and also with the extracellular environment. This pathway is termed as the secretory pathway.
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
02:26NF-κB-dependent Signaling Pathway
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...