Collective Cell Migration and Chemotactic Signaling

Collective cell migration refers to the coordinated movement of multicellular cohorts that retain intercellular contacts and exhibit group polarity, often guided by chemotactic signalling. This mode of locomotion underpins key physiological processes—including embryonic morphogenesis, immune surveillance and wound repair—and is hijacked during cancer invasion and metastasis. Chemotactic cues arise from spatial gradients of soluble or immobilised ligands, which cells detect via surface receptors, triggering intracellular cascades that polarise the cytoskeleton and direct protrusive forces. Mechanical interactions, cell–cell adhesion and local extracellular matrix remodelling further shape migratory patterns, while feedback mechanisms adapt sensitivity and amplify weak signals. Understanding how ensembles of cells integrate chemical and mechanical inputs to steer collectively has profound implications for regenerative medicine, immunotherapy and anti-metastatic strategies.

Research from Nature Portfolio

In a three-dimensional tumour culture, quantitative analyses of cluster velocity and aggregation rates have demonstrated that cancer cells secrete and respond to a diffusible attractant, driving chemotaxis-mediated coalescence into large, motile clusters. A chemotaxis-driven aggregation model captures the kinetics of cluster formation and predicts invasion patterns in vitro. Complementing this, an advanced microfluidic chamber has been devised to present simultaneous surface-bound and soluble chemokine gradients, enabling precise measurement of dendritic cell navigation in response to immobilised CCL21 and superimposed CCL19. This platform reveals how competing haptotactic and chemotactic cues are integrated at the single-cell level, offering a versatile tool for dissecting complex guidance signals in physiologically relevant settings.

Collective Cell Migration and Chemotactic Signaling publication trend

The graph below shows the total number of articles in collective cell migration and chemotactic signaling across all publications each year (not limited to Nature Index journals).

Technical terms

Chemoattractant gradient: A spatial concentration profile of soluble molecules that guides directional migration.

Chemotaxis: The process by which cells detect and move along chemical gradients.

Collective cell migration: Coordinated movement of cell cohorts that maintain intercellular contacts and group polarity.

Haptotaxis: Directed migration along immobilised chemical or adhesive gradients on surfaces.

Microfluidic device: An engineered platform that controls fluid flow and gradient formation at microscale for cell studies.

Local excitation–global inhibition (LEGI): A biochemical feedback mechanism enabling cells to sense and adapt to gradient signals.

Self-generated gradient: A chemoattractant profile established by cells through local ligand degradation or secretion to steer migration.

Co-attraction: Mutual recruitment of cells to a common secreted attractant supporting cluster cohesion and guidance.

References

1. Three-dimensional chemotaxis-driven aggregation of tumor cells. Scientific Reports (2015).
2. A microfluidic device for measuring cell migration towards substrate-bound and soluble chemokine gradients. Scientific Reports (2016).
3. Self-Generated Chemoattractant Gradients: Attractant Depletion Extends the Range and Robustness of Chemotaxis. PLOS Biology (2016).
4. Using Zebrafish to Study Collective Cell Migration in Development and Disease. Frontiers in Cell and Developmental Biology (2018).
5. Collective Signal Processing in Cluster Chemotaxis: Roles of Adaptation, Amplification, and Co-attraction in Collective Guidance. PLOS Computational Biology (2016).