Table 3.
Use of ASCs and dermal substitutes in in vivo wound models.
Characteristics of ASCs | Dermal substitute | Study model | Model | Reference |
---|---|---|---|---|
ASCs | Acellular dermal matrix (ADM) | Skin injury model in mice | ASCs survived after in vivo engraftment, spontaneously differentiated along vascular endothelial, fibroblastic and epidermal epithelial lineages, and significantly improved wound healing | [151] |
ASCs | Silk fibroin-chitosan (SFCS) scaffold | Full-thickness skin defect in male athymic mice | The extent of wound closure and microvessel density were significantly enhanced in the ASC-SFCS group versus SFCS | [152] |
Freshly isolated murine ASCs | Atelocollagen matrix (ACM) | Full-thickness skin defect in diabetic mice | Advanced granulation tissue formation, capillary formation, and epithelialization in diabetic healing-impaired wounds treated with autologous ASC-containing ACMS, compared with mice treated with ACMS alone | [153] |
ASCs | Acellular dermal matrix (ADM) | Subcutaneous implants for soft tissue augmentation | The thickness of the implanted material and the vascular density were the highest 8 weeks postoperatively in ASC-seeded ADM as compared with ADM without ASCs | [154] |
Cultured ASCs | Small intestinal submucosa (SIS); acellular dermal matrix (ADM); composite scaffold (collagen-chondroitin sulfate-hyaluronic acid (Co-CS-HA)) | Murine skin injury model | ASC-seeded scaffolds enhanced the angiogenesis and wound-healing rate compared with the nonseeded scaffolds; SIS and ADM promoted higher vascularity than Co-CS-HA scaffolds | [155] |
Freshly isolated ASCs | Integra® | Rat model of skin wound | Increased vascularization and collagen deposition after 1-3 weeks the implant with ASCs was seeded | [156] |
Freshly porcine ASCs | Integra® | Full thickness thermal burns in swine | Accelerated maturation of wound bed tissue, significant increase in depth of the wound bed tissue, collagen deposition, and blood vessel density in wounds receiving ASC-loaded scaffolds compared to vehicle-loaded scaffolds | [157] |
Cultured murine ASCs | Acellular dermal matrix (ADM) | Excisional wound-healing model in diabetic rats | Capillary density was evidently increased in the ASC–ADM group compared with the control or the ADM group, resulting in accelerated wound closure | [158] |
Freshly isolated ASCs | Bilayer and Flowable Integra® scaffolds | Grafting of scaffolds in the dorsum of nude mice | Increased neovascularization and formation of new connective tissue (loose and adipose) | [159] |
Cultured ASCs | Decellularized dermal matrix prepared from mouse skin | Full-thickness cutaneous wound in nude mice | Increased granulation thickness, reepithelization, blood vessel density | [160] |
Freshly isolated ASCs | Bioengineered pigmented dermoepidermal skin substitutes (melDESS), composed of dermal fibroblasts, keratinocytes, melanocytes, and ASCs | melDESS transplanted on the backs of immunodeficient rats | Decreased melanin synthesis and, consequently, greatly reduced pigmentation of melDESS | [161] |
Cultured ASCs | Silk fibroin (SF)/chitosan (CS) film | Wound in diabetic rats | Wound healing was drastically enhanced for ADSC-SF/CS treatment groups compared with control groups and SF/CS film treatment groups | [162] |
ASCs grown in 10% human plasma | Human acellular dermal matrix (Gliaderm®) | Full-thickness dorsal wounds in immunodeficient mice | Granulation thickness, vascularization, and reepithelialization were significantly increased, resulting in complete wound healing in 12 days | [163] |