Fabrication of quercetin and curcumin bionanovesicles for the prevention and rapid regeneration of full-thickness skin defects on mice.
In the present work biocompatible quercetin and curcumin nanovesicles were developed as a novel approach to prevent and restore skin tissue defects on chronic cutaneous pathologies. Stable and suitable quercetin- and curcumin-loaded phospholipid vesicles, namely liposomes and penetration enhancer-containing vesicles (PEVs), were prepared. Vesicles were made from a highly biocompatible mixture of phospholipids and alternatively a natural polyphenol, quercetin or curcumin. Liposomes were obtained by adding water, while PEVs by adding polyethylene glycol 400 and Oramix®CG110 to the water phase. Transmission electron microscopy, cryogenic-transmission electron microscopy and small- and wide-angle X-ray scattering showed that vesicles were spherical, oligo- or multilamellar and small in size (112-220 nm). In vitro and in vivo tests underlined a good effectiveness of quercetin and curcumin nanovesicles in counteracting phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) induced lesions and inflammation. Myeloperoxydase activity, used to gauge inflammation, was markedly inhibited by quercetin liposomes (59%) and curcumin liposomes and polyethylene glycol (PEG)-PEVs (∼ 68%). Histology showed that PEG-PEVs provided an extensive re-epithelization of the TPA-damaged skin, with multiple layers of thick epidermis. In conclusion, nanoentrapped polyphenols prevented the formation of skin lesions abrogating the various biochemical processes that cause epithelial loss and skin damage.
Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
Ines
I
Castangia
Dept. of Pharmacy and Pharmaceutical Technology, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia, Spain; Instituto de Reconocimiento Molecular y Desarrollo Tecnológico, Centro Mixto Universidad Politécnica de Valencia-Universidad de Valencia, Spain.
Amparo
A
Nácher
Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
Carla
C
Caddeo
Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
Donatella
D
Valenti
Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
Anna Maria
AM
Fadda
Dept. of Pharmacy and Pharmaceutical Technology, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia, Spain; Instituto de Reconocimiento Molecular y Desarrollo Tecnológico, Centro Mixto Universidad Politécnica de Valencia-Universidad de Valencia, Spain.
Octavio
O
Díez-Sales
Dept. of Pathology, University of Valencia, Avda Blasco Ibañez 17, 46010 Valencia, Spain.
Amparo
A
Ruiz-Saurí
Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy. Electronic address: manconi@unica.it.
Maria
M
Manconi
D000818:Animals; D003474:Curcumin / Q000737:chemistry / Q000494:pharmacology*; D004195:Disease Models, Animal; D004487:Edema / Q000473:pathology; D005260:Female; D008081:Liposomes / Q000737:chemistry / Q000648:ultrastructure; D051379:Mice; D008813:Mice, Inbred ICR; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D009195:Peroxidase / Q000378:metabolism; D011794:Quercetin / Q000737:chemistry / Q000494:pharmacology*; D012038:Regeneration / Q000187:drug effects*; D053838:Scattering, Small Angle; D012867:Skin / Q000187:drug effects / Q000473:pathology*; D055672:Static Electricity; D034421:Sus scrofa; D014961:X-Ray Diffraction
D008081:Liposomes; D011794:Quercetin; D009195:Peroxidase; D003474:Curcumin
Histopathology; Polyphenols; Skin inflammation; Vesicles; Wound healing