Fabrication and characterization of an electrospun chitosan-based nanofibrous scaffold coated with hyaluronic acid, resveratrol and adipose derived stem cell for wound healing application

Abstract

Nano-delivery systems represent an astoundingly approach to the controlled delivery of therapeutic agents to promote wound regeneration. Chitosan (CS) and hyaluronic acid (HA), two oppositely charged polysaccharides, hold great promise for tissue engineering applications. In this study, we developed a polyelectrolyte complex by electrospinning CS and subsequent coating by HA, resveratrol (RS) and adipose derived stem cell (AD-MSC). The physicochemical properties of the developed nanofibrous mats were investigated. The CS/HA/RS scaffold with AD-MSC was used as a wound dressings in male rat skin wound model. Human dermal fibroblasts showed over 80% viability on the CS/HA/RS scaffold and also all scaffolds demonstrated cytocompatibility with fibroblasts. The coated nanofibers presented controlled release of HA and RS for up to 72 hours. The in vivo results revealed that CS/HA/RS with AD-MSC had a profound effect on the healing progress by augmenting wound tissue granulation and promoting wound proliferation and re-epithelialization. Thus, the current study reveals that the electrospun CS/HA/RS with AD-MSC scaffold could be proposed as an appropriate wound dressing in the in vivo wound healing.

HIGHLIGHTS

• An HA/RS/AD-MSC coated electrospun CS mats were proposed.

• In vitro, fibroblasts adhered and proliferated better on CS/HA/RS scaffold.

• In vivo, CS/HA/RS/AD-MSC scaffold integrated better within the wound.

Keywords:

• Chitosan
• hyaluronic acid
• electrospinning
• resveratrol
• wound healing
• nanofiber

Acknowledgements

We would like to thank the Cellular and Molecular Research Center of Ahvaz Jundishapur University of Medical Sciences for funding this work.

CRediT authorship contribution statement

A. Moghaddam and M. Orazizadeh: Conceptualization, Methodology, Software. A. Moghaddam: Data curation, Writing, Original draft preparation. F. Nejaddehbashi and V.Bayati: Visualization, Investigation. M. Orazizadeh: Supervision. M. Zardast and M. Abbaspour: Software, Validation. A. Moghaddam and M. Orazizadeh: Writing- Reviewing and Editing.

Declaration of competing interest

The authors state that they have no known competing financial interests or personal relationships that could be perceived as influencing the work reported in this paper.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This project was funded by the Research Council of Ahvaz Jundishapur University of Medical Sciences (Grant no. CMRC-0118).