Direct and abscopal antitumor responses elicited by AlPcNE-mediated photodynamic therapy in a Murine melanoma model

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Autor principal: Morais, José Athayde Vasconcelos
Data de publicació: 2024
Altres autors: Barros, Pedro Henrique Aragão, Brígido, Marcelo de Macedo, Marina, Clara Luna, Bocca, Anamélia Lorenzetti, Mariano, André de Lima e Silva, Souza, Paulo Eduardo Narcizo de, Paiva, Karen Letycia Rodrigues de, Simões, Marina Mesquita, Báo, Sonia Nair, Camargo, Luana Cristina, Longo, João Paulo Figueiró, Morais, Amanda Alencar Cabral, Azevedo, Ricardo Bentes de, Fonseca, Marcio José Poças, Muehlmann, Luis Alexandre
Format: Article
Idioma: eng
Font: Repositório Institucional da UnB
Download full: http://repositorio.unb.br/handle/10482/51697
https://doi.org/10.3390/pharmaceutics16091177
https://orcid.org/0000-0003-3067-4842
https://orcid.org/0000-0002-7136-7059
https://orcid.org/0000-0002-0819-0756
https://orcid.org/0000-0003-3323-5300
https://orcid.org/0000-0001-8013-8250
https://orcid.org/0000-0002-4289-8678
https://orcid.org/0000-0002-2098-4401
https://orcid.org/0000-0002-9814-5827
https://orcid.org/0000-0002-9873-3098
https://orcid.org/0000-0002-7223-037X
https://orcid.org/0000-0002-5154-7263
https://orcid.org/0000-0002-6974-0889
https://orcid.org/0000-0002-2137-9588
https://orcid.org/0000-0003-4711-7583
Sumari: Melanoma, the most aggressive form of skin cancer, presents a major clinical challenge due to its tendency to metastasize and recalcitrance to traditional therapies. Despite advances in surgery, chemotherapy, and radiotherapy, the outlook for advanced melanoma remains bleak, reinforcing the urgent need for more effective treatments. Photodynamic therapy (PDT) has emerged as a promising alternative, leading to targeted tumor destruction with minimal harm to surrounding tissues. In this study, the direct and abscopal antitumor effects of PDT in a bilateral murine melanoma model were evaluated. Although only one of the two tumors was treated, effects were observed in both. Our findings revealed significant changes in systemic inflammation and alterations in CD4+ and CD8+ T cell populations in treated groups, as evidenced by blood analyses and flow cytometry. High-throughput RNA sequencing (RNA-Seq) further unveiled shifts in gene expression profiles in both treated and untreated tumors. This research sheds light on the novel antitumor and abscopal effects of nanoemulsion of aluminum chloride phthalocyanine (AlPcNE)-mediated PDT in melanoma, highlighting the potential of different PDT protocols to modulate immune responses and to achieve more effective and targeted cancer treatments