Publication: Genetically encoded BRET-activated photodynamic therapy for the treatment of deep-seated tumors
Дата
2022
Авторы
Shramova, E. I.
Chumakov, S. P.
Ryabova, A. V.
Telegin, G. B.
Shipunova, V. O.
Kabashin, A. V.
Deyev, S. M.
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Аннотация
© 2022, The Author(s).Photodynamic therapy (PDT) is one of the most appealing photonic modalities for cancer treatment based on anticancer activity of light-induced photosensitizer-mediated reactive oxygen species (ROS), but a limited depth of light penetration into tissues does not make possible the treatment of deep-seated neoplasms and thus complicates its widespread clinical adoption. Here, we introduce the concept of genetically encoded bioluminescence resonance energy transfer (BRET)-activated PDT, which combines an internal light source and a photosensitizer (PS) in a single-genetic construct, which can be delivered to tumors seated at virtually unlimited depth and then triggered by the injection of a substrate to initiate their treatment. To illustrate the concept, we engineered genetic NanoLuc-miniSOG BRET pair, combining NanoLuc luciferase flashlight and phototoxic flavoprotein miniSOG, which generates ROS under luciferase-substrate injection. We prove the concept feasibility in mice bearing NanoLuc-miniSOG expressing tumor, followed by its elimination under the luciferase-substrate administration. Then, we demonstrate a targeted delivery of NanoLuc-miniSOG gene, via tumor-specific lentiviral particles, into a tumor, followed by its successful elimination, with tumor-growth inhibition (TGI) coefficient exceeding 67%, which confirms a great therapeutic potential of the proposed concept. In conclusion, this study provides proof-of-concept for deep-tissue “photodynamic” therapy without external light source that can be considered as an alternative for traditional PDT.
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Genetically encoded BRET-activated photodynamic therapy for the treatment of deep-seated tumors / Shramova, E.I. [et al.] // Light: Science and Applications. - 2022. - 11. - № 1. - 10.1038/s41377-022-00729-4
URI
https://www.doi.org/10.1038/s41377-022-00729-4
https://www.scopus.com/record/display.uri?eid=2-s2.0-85125385021&origin=resultslist
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https://openrepository.mephi.ru/handle/123456789/28770
https://www.scopus.com/record/display.uri?eid=2-s2.0-85125385021&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000758763100001
https://openrepository.mephi.ru/handle/123456789/28770