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Materials 2017, 10(7), 843;

Anti-Inflammatory, Immunomodulatory, and Tissue Repair Activity on Human Keratinocytes by Green Innovative Nanocomposites

R&D Nanoscience Centre MAVI, 04011 Aprilia (LT), Italy
Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania Luigi Vanvitelli, via Costantinopoli 16, 80138 Naples, Italy
Plastic, Reconstructive and Aesthetic Surgery Department, CTO Hospital, 00142 Rome, Italy
Chemical Materials Environmental Engineering Department, University La Sapienza, 00185 Rome, Italy
Multidisciplinary Department of Medical-Surgical and Dental Specialty-Dermatology, University of Campania Luigi Vanvitelli, 80138 Naples, Italy
These two authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 13 June 2017 / Revised: 10 July 2017 / Accepted: 18 July 2017 / Published: 22 July 2017
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The use of raw materials obtained by waste and processed through innovative industrial methodologies has generated an industry of about a trillion dollars in a short time, and in the near future will provide resources and services for the conservation and sustainable use of natural resources in order to ensure a better and fairer welfare for the human race. The production of nano-fiber chitin non-woven tissue is in accordance with the Organization for Economic Co-operation and Development (OECD) and European Union (EU) bio-economic programs: 100% biodegradable, ecological, and therefore useful in decreasing dependence on fossil fuel resources. The aim of our study is the evaluation of different formulations of a non-woven tissue obtained from electrospinning of a mixture of nanochitin fibrils, lignin, and poly (ethylene) oxide (PEO) on the restoration of damaged tissues. Wound repair is a complex process that involves epithelial and immune cells and includes the induction of metalloproteinases, inflammatory mediators, and angiogenic factors. Our in vitro results have shown that all of the realized chitin nanofibrils-bio-lignin non-woven tissues tested as nontoxic for human keratinocytes (HaCat) cells. Furthermore, the bio-composites that included bio-lignin at 0.1% have been able to modulate the expression of pro-inflammatory cytokines (Tumor Necrosis Factor-α, IL-1α, and IL8), lipopolysaccharide (LPS)-induced, and matrix metalloproteinases (MMPs) and human beta-defensin 2 (HBD-2) expression in HaCat cells, suggesting an anti-inflammatory and immunomodulatory role. Taken together, our results suggest that our chitin nanofibrils-bio-lignin non-woven tissue represents a skin-friendly tool that is able to favor a correct and fast wound repair. View Full-Text
Keywords: tissue repair; immunomodulation; green innovative nanocomposites; keratinocytes tissue repair; immunomodulation; green innovative nanocomposites; keratinocytes

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Morganti, P.; Fusco, A.; Paoletti, I.; Perfetto, B.; Del Ciotto, P.; Palombo, M.; Chianese, A.; Baroni, A.; Donnarumma, G. Anti-Inflammatory, Immunomodulatory, and Tissue Repair Activity on Human Keratinocytes by Green Innovative Nanocomposites. Materials 2017, 10, 843.

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