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Updated: May 6, 2026

Concentric Gel System to Study the Biophysical Role of Matrix Microenvironment on 3D Cell Migration

Concentric Gel System to Study the Biophysical Role of Matrix Microenvironment on 3D Cell Migration

Published on: April 3, 2015

Matrix Viscoelasticity Regulates Dendritic Cell Migration and Immune Priming.

Wei-Hung Jung^1,2, Emie Humann^1,2, Joshua M Price^1,2

¹John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, USA.

Advanced Materials (Deerfield Beach, Fla.)

|May 5, 2026

Summary

Matrix viscoelasticity impacts immune surveillance. Slow-relaxing matrices limit dendritic cell (DC) migration and T cell activation, revealing migration as a mechanical checkpoint for immune priming.

Keywords:

T cell priming dendritic cell mechanomemory tumor microenvironment viscoelastic extracellular matrix

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Last Updated: May 6, 2026

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Study of Cell Migration in Microfabricated Channels

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Imaging CD4 T Cell Interstitial Migration in the Inflamed Dermis

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Published on: March 25, 2016

Area of Science:

Biophysics
Immunology
Cancer Biology

Background:

The tumor microenvironment's mechanical properties influence immune surveillance.
The specific role of matrix viscoelasticity in regulating immune cell behavior is not well understood.

Purpose of the Study:

To investigate how matrix viscoelasticity and relaxation affect dendritic cell (DC) behavior and immune priming.
To establish a tunable collagen system modeling human tissue viscoelasticity for studying immune cell mechanics.

Main Methods:

Utilized a tunable collagen system to mimic human tissue viscoelasticity.
Assessed dendritic cell (DC) motility, T cell interactions, and activation in matrices with varying relaxation properties.
Investigated the effects of prolonged confinement and DC migration blockade.

Main Results:

Slow-relaxing, elastic matrices restricted DC actomyosin remodeling, reducing DC motility and subsequent T cell encounters and activation.
Blocking DC migration in fast-relaxing matrices mimicked impaired T cell priming observed in elastic networks.
Prolonged DC confinement in elastic matrices induced a mechanomemory state, characterized by reduced motility and altered chromatin accessibility.
Findings were validated in patient-derived ependymoma samples.

Conclusions:

Viscoelastic relaxation is a critical physical regulator of immune priming within the tumor microenvironment.
DC migration acts as a mechanical checkpoint for immune activation.
The developed tunable viscoelastic platform offers a human-relevant model for dissecting mechanical control of immunity and informing therapeutic strategies.