Related Experiment Video
Updated: Jun 21, 2026
05:50
Measuring Cell-Edge Protrusion Dynamics during Spreading using Live-Cell Microscopy
Published on: November 1, 2021
Regulation and function of specialized membrane protrusions in intercellular communication.
Shiyu Liu1,2, Christina A Daly3, Stacey K Ogden4
1Membrane Traffic and Pathogenesis, Institut Pasteur, Université Paris Cité, CNRS UMR 3691, Paris, France.
Nature Reviews. Molecular Cell Biology
|June 19, 2026
Summary
Cells form specialized connections like tunnelling nanotubes and cytonemes for long-range communication. These structures are crucial for development and immunity, and their dysfunction contributes to disease.
Area of Science:
- Cell Biology
- Molecular Biology
- Tissue Engineering
Background:
- Cells utilize specialized membrane extensions for intercellular communication, organelle, and signal exchange.
- Tunnelling nanotubes, cytonemes, and migrasomes are key structures facilitating long-range cellular coordination.
- These dynamic connections play vital roles in development, immune responses, and disease pathogenesis.
Purpose of the Study:
- To review recent advancements in understanding the formation, regulation, and specificity of cellular membrane extensions.
- To emphasize the common principles governing the architecture and cargo transfer of tunnelling nanotubes and cytonemes.
- To explore the pathological implications of dysregulated cellular communication structures.
Main Methods:
- Review of current literature on cellular membrane extensions.
- Analysis of formation and regulation mechanisms.
- Comparative study of tunnelling nanotubes and cytonemes.
Main Results:
- Cellular membrane extensions are more prevalent and functionally diverse than previously recognized.
- Common principles underlie the architecture and cargo transfer of these dynamic connections.
- Dysregulation of these structures is linked to various pathologies.
Conclusions:
- Cellular membrane extensions are critical for coordinating cellular behavior across tissues.
- Understanding these structures is essential for advancing tissue organization models.
- Further research into these connections can reveal new therapeutic targets for diseases.
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