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<p>Adipose tissue engineering offers a promising approach for breast reconstruction, yet achieving efficient adipose regeneration remains challenging due to poor cell survival and tissue integration. Hence, we developed a three-dimensional (3D) electrospun collagen nanofiber scaffold integrated with adipose-derived mesenchymal stem cells (ADSCs), designed to enhance adipose tissue regeneration by providing a biomimetic extracellular matrix environment. The incorporation of collagen nanofibers enhances cell adhesion and extracellular matrix remodeling, further promoting adipogenic differentiation. Compared to conventional two-dimensional (2D) culture, ADSCs seeded on the scaffold exhibit significantly improved viability and lipid accumulation. In vivo implantation in a rat model demonstrated that the COL-ADSCs composite scaffold increased subcutaneous fat thickness from 2.69 ± 0.10&#xa0;mm to 3.37 ± 0.11&#xa0;mm over four weeks, while also promoting collagen remodeling and angiogenesis, as confirmed by CD31-positive staining. Despite these promising outcomes, this study is limited to a small animal model, and further validation in large animal models and clinical settings is necessary. These findings indicate that the COL-ADSCs composite scaffold provides a biomimetic microenvironment that supports ADSC adhesion, differentiation, and tissue remodeling, highlighting its potential as a clinically applicable biomaterial for breast reconstruction.</p>

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3D collagen nanofiber scaffold with adipose derived stem cells for functional adipose tissue regeneration

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月1日

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  • Liping Zhang,
  • Yueguang Xue,
  • Delu Mu,
  • Siyi Chen,
  • Guangmin Wu,
  • Zitong Yang,
  • Yizhu Chen,
  • Hu Xu,
  • Li Zhu,
  • Jiandong Wang

摘要

Adipose tissue engineering offers a promising approach for breast reconstruction, yet achieving efficient adipose regeneration remains challenging due to poor cell survival and tissue integration. Hence, we developed a three-dimensional (3D) electrospun collagen nanofiber scaffold integrated with adipose-derived mesenchymal stem cells (ADSCs), designed to enhance adipose tissue regeneration by providing a biomimetic extracellular matrix environment. The incorporation of collagen nanofibers enhances cell adhesion and extracellular matrix remodeling, further promoting adipogenic differentiation. Compared to conventional two-dimensional (2D) culture, ADSCs seeded on the scaffold exhibit significantly improved viability and lipid accumulation. In vivo implantation in a rat model demonstrated that the COL-ADSCs composite scaffold increased subcutaneous fat thickness from 2.69 ± 0.10 mm to 3.37 ± 0.11 mm over four weeks, while also promoting collagen remodeling and angiogenesis, as confirmed by CD31-positive staining. Despite these promising outcomes, this study is limited to a small animal model, and further validation in large animal models and clinical settings is necessary. These findings indicate that the COL-ADSCs composite scaffold provides a biomimetic microenvironment that supports ADSC adhesion, differentiation, and tissue remodeling, highlighting its potential as a clinically applicable biomaterial for breast reconstruction.