| Bioprinted dermis with human adipose tissue-derived microvascular fragments promotes wound healing |
| 論文作者 |
Zhang, ZQ; Xu, C; Xu, L; Wan, JM; Cao, GB; Liu, Z; Ji, PX; Jin, QH; Fu, Y; Le, YY; Ju, JH; Hou, RX; Zhang, GL |
| 期刊/會(huì)議名稱(chēng) |
BIOTECHNOLOGY AND BIOENGINEERING |
| 論文年度 |
2023 |
| 論文類(lèi)別 |
Article; Early Access |
| 摘要 |
Tissue-engineered skin is an effective material for treating large skin defects in a clinical setting. However, its use is limited owing to vascular complications. Human adipose tissue-derived microvascular fragments (HaMVFs) are vascularized units that form vascular networks by rapid reassembly. In this study, we designed a vascularized bionic skin tissue using a three-dimensional (3D) bioprinter of HaMVFs and human fibroblasts encapsulated in a hybrid hydrogel composed of GelMA, HAMA, and fibrinogen. Tissues incorporating HaMVFs showed good in vitro vascularization and mechanical properties after UV crosslinking and thrombin exposure. Thus, the tissue could be sutured appropriately to the wound. In vivo, the vascularized 3D bioprinted skin promoted epidermal regeneration, collagen maturation in the dermal tissue, and vascularization of the skin tissue to accelerate wound healing. Overall, vascularized 3D bioprinted skin with HaMVFs is an effective material for treating skin defects and may be clinically applicable to reduce the necrosis rate of skin grafts. A vascularized bionic skin tissue using a three-dimensional (3D) bioprinter of HaMVFs and human fibroblasts encapsulated in a hybrid hydrogel composed of GelMA, HAMA, and fibrinogen was designed for promoting wound healing.image |
| 影響因子 |
3.8 |
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