Bacterial resistance to antimicrobial photodynamic therapy: A critical update

Autor(es)

Surur, Amanda Koberstain ; de Oliveira, Analu Barros ; De Annunzio, Sarah Raquel ; Ferrisse, Tulio Morandin ; Fontana, Carla Raquel

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY; v. 255, p. 12-pg., 2024-05-03.

Resumo

Bacterial antibiotic resistance is one of the most significant challenges for public health. The increase in bacterial resistance, mainly due to microorganisms harmful to health, and the need to search for alternative treatments to contain infections that cannot be treated by conventional antibiotic therapy has been aroused. An alternative widely studied in recent decades is antimicrobial photodynamic therapy (aPDT), a treatment that can eliminate microorganisms through oxidative stress. Although this therapy has shown satisfactory results in infection control, it is still controversial in the scientific community whether bacteria manage to develop resistance after successive applications of aPDT. Thus, this work provides an overview of the articles that performed successive aPDT applications in models using bacteria published since 2010, focusing on sublethal dose cycles, highlighting the main PSs tested, and addressing the possible mechanisms for developing tolerance or resistance to aPDT, such as efflux pumps, biofilm formation, OxyR and SoxRS systems, catalase and superoxide dismutase enzymes and quorum sensing. (AU)

• Processo FAPESP: 13/07276-1 - CEPOF - Centro de Pesquisa em Óptica e Fotônica
• Beneficiário: Vanderlei Salvador Bagnato
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 21/01191-0 - Indução de tolerância e caracterização do biofime de Candida albicans submetido à terapia fotodinâmica antimicrobiana
• Beneficiário: Túlio Morandin Ferrisse
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 20/07110-0 - Potencial da terapia fotodinâmica na modulação da resposta inflamatória e nos fatores de virulência microbianos: avaliação em modelo de co-culturas tridimensionais de fibroblastos gengivais, Candida albicans e Staphylococcus aureus
• Beneficiário: Analú Barros de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Doutorado