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- Title
Anti-Viral Photodynamic Inactivation of T4-like Bacteriophage as a Mammalian Virus Model in Blood.
- Authors
Santos, Patrícia; Gomes, Ana T. P. C.; Lourenço, Leandro M. O.; Faustino, Maria A. F.; Neves, Maria G. P. M. S.; Almeida, Adelaide
- Abstract
The laboratorial available methods applied in plasma disinfection can induce damage in other blood components. Antimicrobial photodynamic therapy (aPDT) represents a promising approach and is approved for plasma and platelet disinfection using non-porphyrinic photosensitizers (PSs), such as methylene blue (MB). In this study, the photodynamic action of three cationic porphyrins (Tri-Py(+)-Me, Tetra-Py(+)-Me and Tetra-S-Py(+)-Me) towards viruses was evaluated under white light irradiation at an irradiance of 25 and 150 mW·cm−2, and the results were compared with the efficacy of the approved MB. None of the PSs caused hemolysis at the isotonic conditions, using a T4-like phage as a model of mammalian viruses. All porphyrins were more effective than MB in the photoinactivation of the T4-like phage in plasma. Moreover, the most efficient PS promoted a moderate inactivation rate of the T4-like phage in whole blood. Nevertheless, these porphyrins, such as MB, can be considered promising and safe PSs to photoinactivate viruses in blood plasma.
- Subjects
METHYLENE blue; PHOTODYNAMIC therapy; PHOTOSENSITIZERS; PORPHYRINS; BACTERIOPHAGES
- Publication
International Journal of Molecular Sciences, 2022, Vol 23, Issue 19, p11548
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms231911548