Video Experimental Relacionado

Updated: Feb 8, 2026

A Preclinical Mouse Model of Osteosarcoma to Define the Extracellular Vesicle-mediated Communication Between Tumor and Mesenchymal Stem Cells

A Preclinical Mouse Model of Osteosarcoma to Define the Extracellular Vesicle-mediated Communication Between Tumor and Mesenchymal Stem Cells

Published on: May 6, 2018

title

Vidyanand Sasidharan^1,2, Laura Ancellotti³, Viraj Doddihal⁴

¹Stowers Institute for Medical Research, Kansas City, MO, USA.

Science advances

|February 6, 2026

Resumen

tl_dr

Área de la Ciencia:

Cell Biology
Regenerative Biology
Molecular Biology

Sus antecedentes:

Planarian flatworms possess remarkable regenerative abilities.
Intercellular communication mechanisms governing regeneration are not fully understood.

Objetivo del estudio:

To discover and characterize extracellular vesicles (EVs) in planarians.
To investigate the role of EVs in planarian intercellular communication and regeneration.

Principales métodos:

Imaging and molecular analysis of planarian EVs.
Environmental stressor experiments to assess EV release.
Gene knockdown experiments targeting AGO-3.
Small RNA sequencing of EVs.

Principales resultados:

Abundant EVs were discovered and characterized in planarians, showing conserved biogenesis and composition.
Environmental stressors increased EV release, indicating dynamic regulation.
Planarian EVs transfer regulatory small RNAs, mediating systemic RNA interference (RNAi).
AGO-3 protein plays a key role in small interfering RNA association with EVs.

Conclusiones:

Extracellular vesicles are pivotal mediators of cell-cell communication in planarians.
EVs facilitate systemic RNAi, contributing to gene regulation and regeneration.
These findings provide insights into the coordination of regeneration in animals.

Palabras clave:

vesículas extracelulares ARN pequeño interferencia de ARN regeneración comunicación intercelular planarias células madre AGO-3

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