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April 3, 2026Advanced Science0 citationsOpen Access

Polymer Matrix‐Based 3D Culture Significantly Enhances the Differentiation and Immunomodulatory Functions of Human Adipose‐Derived Stem Cells

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CSChangjin SeoDKDohyeon KimJSJunhyuk Song

Key Points

  • The aim is to evaluate how a synthetic polymer matrix affects the differentiation and immunomodulatory functions of human adipose-derived stem cells (hADSCs).
  • Utilized a synthetic polymer matrix (poly-Z) for 3D culture of hADSCs.
  • Compared outcomes between poly-Z, ultra-low attachment (ULA), and tissue culture plate (TCP) systems.
  • Assessed cell viability, extracellular matrix deposition, pluripotency, and differentiation capacity.
  • Poly-Z-cultured hADSCs showed improved cell viability and enhanced tri-lineage differentiation.
  • Superior immunomodulatory features were observed with elevated secretion of IDO and PGE2.
  • In animal models, poly-Z spheroids alleviated inflammation and reduced tissue damage more effectively than ULA or TCP-derived cells.

Abstract

Human adipose-derived stem cells (hADSCs) possess immunomodulatory and multipotent properties, making them attractive candidates for regenerative therapies. However, conventional tissue culture plate (TCP)-based 2D adherent cultures or widely used ultra-low attachment (ULA) spheroid systems often compromise differentiation potential and therapeutic efficacy of hADSCs. Here, we report a synthetic polymer matrix, poly-Z, that enables the formation of hADSC spheroids with significantly enhanced biological functions. Compared to ULA or TCP culture systems, poly-Z-cultured hADSC spheroids exhibited improved cell viability, enriched extracellular matrix deposition, elevated pluripotency marker expression, and superior tri-lineage differentiation capacity. Notably, poly-Z spheroids displayed a distinct immunomodulatory signature characterized by significantly elevated secretion of indoleamine-pyrrole 2,3-dioxygenase (IDO) and prostaglandin E2 (PGE2), and showed enhanced in vivo persistence after transplantation. In mouse models of acute colitis and acetaminophen-induced liver injury, poly-Z-cultured hADSC spheroids markedly alleviated inflammation, reduced tissue damage, and modulated pro- and anti-inflammatory cytokine levels more effectively than ULA or TCP-derived cells. These findings establish the poly-Z matrix as a potent 3D culture platform that enhances the functional and therapeutic potential of hADSCs for clinical applications.

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Cite This Study

Seo et al. (2026) studied this question.

synapsesocial.com/papers/69cf5ede5a333a821460d7fbhttps://doi.org/10.1002/advs.202518704
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