The Healing Effect of Stem Cells Loaded in Nanofibrous Scaffolds on Full Thickness Skin Defects
In this study, we have evaluated the wound-healing effects of unrestricted somatic stem cells loaded in chitosan-cross linked PHBV nanofibrous scaffold, implanted into the full thickness skin defects of rats. Afterwards, the scaffolds were evaluated by structural, microscopic, physical
and mechanical assays and cell culture analyses. Defects were treated with the scaffolds without and with USSCs. MTT assay, immunostaining, and wound pathology were performed for groups twenty one days after implantation. SEM images showed the average diameter of about 100 nm for the nanofibrous
scaffolds, increasing up to 500 nm after chitosan-crosslinking. Results of physical and mechanical analyses also showed a good resilience and compliance with movement as a skin graft. Cellular experiments showed a better cell adhesion, growth and proliferation inside the cross-linked nanofibrous
scaffolds compared to un-cross linked ones. In animal models, all groups, excluding the control group, exhibited the most pronounced effect on wound closure, with the statistically significant improvement in wound healing being seen at post-operative day 21. Histological and immunostaining
examinations of healed wounds from all groups, especially the groups treated with stem cells. Thus, the grafting of chitosan-cross-linked nanofibrous scaffold loaded with USSC showed better results during the healing process of skin defects in rat models.
Keywords: CHITOSAN-CROSS LINKING; NANOFIBROUS PHBV SCAFFOLD; UNRESTRICTED SOMATIC STEM CELLS (USSCS); WOUND HEALING
Document Type: Research Article
Publication date: 01 January 2013
- Journal of Biomedical Nanotechnology (JBN) is a peer-reviewed multidisciplinary journal providing broad coverage in all research areas focused on the applications of nanotechnology in medicine, drug delivery systems, infectious disease, biomedical sciences, biotechnology, and all other related fields of life sciences.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content