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Updated: Jan 13, 2026
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Published on: October 13, 2012
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Visualizing Age-Dependent Electrotaxis of Human Adipose-Derived Stem Cells Under Direct Current Electric Fields
Shiyu Li1, Kan Zhu2, Shude Yang3
1Department of Plastic Surgery, The First Affiliated Hospital of China Medical University; Department of Dermatology, Institute for Regenerative Cures, University of California, Davis.
Journal of Visualized Experiments : Jove
|January 6, 2026
Summary
Human adipose-derived stem cells (hADSCs) show age-dependent electrotaxis, with elderly cells migrating less effectively. This impaired migration is linked to altered sodium channel and PI3K-Akt signaling pathways.
Area of Science:
- Biomedical Engineering
- Stem Cell Biology
- Regenerative Medicine
Background:
- Human adipose-derived stem cells (hADSCs) are crucial for tissue repair and wound healing.
- Directed cell migration, or electrotaxis, is essential for hADSC therapeutic function.
- The influence of donor age on hADSC electrotaxis and its molecular basis are not well understood.
Purpose of the Study:
- To investigate the electrotactic behavior of hADSCs under direct current electric fields (DCEFs).
- To determine if donor age affects hADSC electrotaxis and identify underlying molecular mechanisms.
- To inform optimized application of hADSCs in regenerative medicine.
Main Methods:
- Validated hADSC electrotaxis and voltage dependence using DCEFs (100-200 mV/mm).
- Compared hADSCs from young and elderly female donors via RNA sequencing after DCEF stimulation.
- Analyzed differentially expressed genes and enriched pathways in elderly hADSCs.
Main Results:
- hADSCs exhibited voltage-dependent anodal migration, with increased speed and directionality at higher EF intensities.
- Elderly hADSCs showed significantly reduced anodal migration compared to young hADSCs.
- Transcriptomic analysis revealed differential gene expression in elderly hADSCs, enriched in sodium ion transport and PI3K-Akt signaling pathways.
Conclusions:
- Donor age significantly impacts hADSC electrotactic capacity, with elderly cells exhibiting impaired migration.
- Dysregulated sodium channel activity and PI3K-Akt signaling pathways likely contribute to age-related decline in electrotaxis.
- Findings offer insights into tailoring hADSC therapies by considering donor age and targeting specific molecular pathways for improved regenerative outcomes.
