Video Experimental Relacionado

Updated: Jan 21, 2026

Nanopodia - Thin, Fragile Membrane Projections with Roles in Cell Movement and Intercellular Interactions

Nanopodia - Thin, Fragile Membrane Projections with Roles in Cell Movement and Intercellular Interactions

Published on: April 3, 2014

La interacción intercelular dicta la ferroposis de las células cancerosas a través de la señalización NF2-YAP

Jiao Wu^1,2, Alexander M Minikes^2,3, Minghui Gao^2,4

¹National Translational Science Center for Molecular Medicine, Department of Cell Biology, School of Basic Medicine, Air Force Medical University, Xi'an, China.

|July 26, 2019

Resumen

Las interacciones intercelulares regulan la ferroposis, un proceso de muerte celular implicado en el cáncer. La E-cadherina y la vía NF2-Hippo suprimen la ferroposis en las células epiteliales, mientras que la activación de la YAP la promueve, ofreciendo nuevos objetivos terapéuticos.

Área de la Ciencia:

Biología celular
Investigación del cáncer
Mecanismos moleculares de la muerte celular

Sus antecedentes:

La ferroptosis es una vía de muerte celular dependiente del hierro implicada en enfermedades como el cáncer y el daño de órganos.
La glutatión peroxidasa 4 (GPX4) es un regulador clave de la ferroptosis, protegiendo a las células de la peroxidación lipídica.
Las células cancerosas con rasgos mesenquimales son paradójicamente sensibles a la ferroptosis.

Objetivo del estudio:

Investigar la regulación no celular autónoma de la ferroposis por las interacciones intercelulares.
Elucidar los mecanismos moleculares que vinculan la adhesión celular con la sensibilidad a la ferroposis.
Explorar el papel del eje de señalización NF2-Hippo-YAP en la regulación de la ferroposis.

Principales métodos:

Se ha investigado la regulación de la ferroposis en células epiteliales y no epiteliales.
Utilizó manipulación genética e inhibición farmacológica de las vías de señalización.
Se empleó un modelo de ratón ortotópico de mesotelioma maligno.

Principales resultados:

Las interacciones intercelulares mediadas por E-cadherina suprimen la ferroptosis en las células epiteliales a través de la vía NF2-Hippo.
La inhibición de la vía NF2-Hippo activa la YAP, promoviendo la ferroposis mediante la regulación al alza de ACSL4 y TFRC.
La inactivación genética de NF2 aumentó la sensibilidad a la ferroposis en un modelo de ratón con mesotelioma.

Conclusiones:

Las interacciones intercelulares y el eje de señalización NF2-YAP son reguladores críticos de la ferroposis.
Este mecanismo explica la mayor sensibilidad a la ferroposis en las células cancerosas mesenquimales.
El estado de señalización de NF2-YAP puede predecir la respuesta del paciente a las terapias inductoras de ferroposis.

Más Videos Relacionados

De Novo Generation of Somatic Stem Cells by YAP/TAZ

De Novo Generation of Somatic Stem Cells by YAP/TAZ

Published on: May 7, 2018

A Proximal Culture Method to Study Paracrine Signaling Between Cells

A Proximal Culture Method to Study Paracrine Signaling Between Cells

Published on: August 28, 2018

Videos de Conceptos Relacionados

What is Cell Signaling?

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.

Interactions Between Signaling Pathways

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...

mTOR Signaling and Cancer Progression

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...

Cell-surface Signaling

Cell-surface Signaling

Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse across the cell membrane. In order to be able to affect a cell without entering it, these hormones bind to receptors on the cell membrane. When a first messenger, a hormone, binds to a receptor, a signal cascade is set off, causing second messengers, proteins inside the cell, to become activated, resulting in downstream effects.

Yeast Signaling

Yeast Signaling

Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes (cells with a nucleus). Cell signaling in yeast is similar to signaling in other eukaryotic cells. A ligand, such as a protein or a small molecule released from a yeast cell, attaches to a receptor on the cell surface. The binding stimulates second-messenger kinases to activate or inactivate transcription factors that further regulate gene expression. Many of the yeast intracellular signaling cascades have similar...

Overview of Cell Signaling

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...