title: Effects of near-infrared laser radiation on the survival and inflammatory potential of Candida spp. involved in the pathogenesis of chemotherapy-induced oral mucositis.
abstract: Candida spp. usually colonize ulcerative lesions of atrophic mucosa in patients with chemotherapy-induced oral mucositis inducing severe inflammation. The spread of antifungal-resistant strains strongly encouraged the search of complementary or alternative therapeutic strategies to cure inflamed mucosa. In this paper, we studied the effects of a near-infrared (NIR) laser system with dual-wavelength emission (808 nm + 904 nm) on the survival and inflammatory potential of C. albicans, C. glabrata, and C. parapsilosis. Laser treatment was performed with a Multiwave Locked System laser. Survival and apoptosis of fungal strains were evaluated by colony-forming units (CFU) counting and annexin V staining. Cytokine production was evaluated by ImmunoPlex array. Laser treatment significantly affected the survival of Candida spp. by inducing apoptosis and induced a lower production of inflammatory cytokines by dendritic cells compared to untreated fungi. No differences in the survival and inflammatory potential were recorded in treated or untreated Saccharomyces cerevisiae cells, used as the control non-pathogenic microorganism. Laser treatment altered the survival and inflammatory potential of pathogenic Candida spp. These data provide experimental support to the use of NIR laser radiation as a co-adjuvant of antifungal therapy in patients with oral mucositis (OM) complicated by Candida infections.
authors.affiliation: Department of Clinical and Experimental Medicine, University of Firenze, Firenze, FI, Italy.
authors.forename: A M
authors.initials: AM
authors.lastname: Clemente
authors.affiliation: Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Rizzetto
authors.affiliation: Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Castronovo
authors.affiliation: Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Perissi
authors.affiliation: Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Tanturli
authors.affiliation: Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Cozzolino
authors.affiliation: Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, TN, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Cavalieri
authors.affiliation: Medical Physics Unit, Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Fusi
authors.affiliation: ASAcampus Joint Laboratory, ASA Research Division, Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Cialdai
authors.affiliation: ASAcampus Joint Laboratory, ASA Research Division, Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Vignali
authors.affiliation: Department of Clinical and Experimental Medicine, University of Firenze, Firenze, FI, Italy. torcia@unifi.it.
authors.forename: M G
authors.initials: MG
authors.lastname: Torcia
authors.affiliation: ASAcampus Joint Laboratory, ASA Research Division, Department of Experimental and Clinical Biomedical Sciences, University of Firenze, Firenze, FI, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Monici
mesh_terms: D000970:Antineoplastic Agents / Q000009:adverse effects*; D017209:Apoptosis / Q000528:radiation effects; D002175:Candida / Q000528:radiation effects*; D002177:Candidiasis / Q000139:chemically induced* / Q000532:radiotherapy*; D006801:Humans; D007249:Inflammation / Q000532:radiotherapy; D053685:Laser Therapy; D013280:Stomatitis / Q000139:chemically induced* / Q000532:radiotherapy*
chemical_list: D000970:Antineoplastic Agents