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Forced Transdifferentiation

Forced Transdifferentiation

Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
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Related Experiment Video

Updated: Sep 8, 2025

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel

Gradient Strain Chip for Stimulating Cellular Behaviors in Cell-laden Hydrogel

Published on: August 8, 2017

Mechanical Cell Reprogramming on Tissue-Mimicking Hydrogels for Cancer Cell Transdifferentiation.

Xueqing Ren¹, Yachao Wang², Mengcheng Lei¹

¹Key Laboratory of Molecular Biophysics of MOE and Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology-Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.

Research (Washington, D.C.)

|August 20, 2025

Summary

This summary is machine-generated.

Tissue matrix mechanics influence cell behavior and health. This study demonstrates that mechanical reprogramming using tissue-mimicking hydrogels can reprogram cells, promoting stemness and potentially treating diseases like cancer.

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Area of Science:

Biomaterials Science
Cell Biology
Regenerative Medicine

Background:

Disrupted tissue matrix mechanics are linked to diseases like cancer and neurodegeneration.
Aging tissue matrix loses integrity and alters biophysical properties.
The role of matrix mechanical properties in regulating cell health and function is largely unknown.

Purpose of the Study:

To investigate if cells exhibit reprogrammed behaviors when cultured in a tissue-mimicking mechanical microenvironment.
To explore the potential of mechanical reprogramming for regenerative medicine and cancer therapy.

Main Methods:

Constructed a tissue-mimicking hydrogel with viscoelastic and nonlinear elastic components.
Cultured fibroblasts on the hydrogel, observing aggregate formation and gene expression.
Applied mechanical reprogramming to non-small-lung cancer cells.

Main Results:

Fibroblasts formed mesenchymal aggregates with elevated stemness genes and enhanced differentiation potential.
Mesenchymal aggregate formation was driven by collagen network reorganization via cell contraction.
Mechanical reprogramming induced adipogenic transdifferentiation in lung cancer cells, reversing epithelial-to-mesenchymal transition markers and suppressing oncogenes.

Conclusions:

Cellular behaviors can be reprogrammed by mechanical microenvironments.
Mechanical reprogramming on tissue-mimicking hydrogels shows promise for regenerative medicine and cancer treatment.
This approach offers a novel strategy for disease treatment by modulating cellular mechanical properties.