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Kirillin M, Khilov A, Kurakina D, Orlova A, Perekatova V, Shishkova V, Malygina A, Mironycheva A, Shlivko I, Gamayunov S, Turchin I, Sergeeva E. Dual-Wavelength Fluorescence Monitoring of Photodynamic Therapy: From Analytical Models to Clinical Studies. Cancers (Basel) 2021; 13:cancers13225807. [PMID: 34830963 PMCID: PMC8616416 DOI: 10.3390/cancers13225807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/03/2021] [Accepted: 11/09/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Fluorescence imaging is an efficient tool in monitoring photodynamic therapy procedures allowing us to track accumulation and photobleaching of a photosensitizer (PS). Chlorin-based PSs feature high absorption in the red and blue bands of visible spectrum. Due to spectral dispersion of light penetration depth in biotissues, fluorescence signals registered upon excitation by red or blue light are formed in different measurement volumes. We present analytical and numerical models of dual-wavelength fluorescence imaging for evaluation of PS localization depth in the cases of topical administration and intravenous injection. The results of analytical and numerical simulations are in good agreement with the phantom experiments, and are translated to the in vivo imaging, which allows to interpret experimental observations in animal trials, human volunteers, and clinical studies. The proposed approach allows us to noninvasively estimate typical accumulation depths of PS localization which are consistent with the morphologically expected values. Abstract Fluorescence imaging modalities are currently a routine tool for the assessment of marker distribution within biological tissues, including monitoring of fluorescent photosensitizers (PSs) in photodynamic therapy (PDT). Conventional fluorescence imaging techniques provide en-face two-dimensional images, while depth-resolved techniques require complicated tomographic modalities. In this paper, we report on a cost-effective approach for the estimation of fluorophore localization depth based on dual-wavelength probing. Owing to significant difference in optical properties of superficial biotissues for red and blue ranges of optical spectra, simultaneous detection of fluorescence excited at different wavelengths provides complementary information from different measurement volumes. Here, we report analytical and numerical models of the dual-wavelength fluorescence imaging of PS-containing biotissues considering topical and intravenous PS administration, and demonstrate the feasibility of this approach for evaluation of the PS localization depth based on the fluorescence signal ratio. The results of analytical and numerical simulations, as well as phantom experiments, were translated to the in vivo imaging to interpret experimental observations in animal experiments, human volunteers, and clinical studies. The proposed approach allowed us to estimate typical accumulation depths of PS localization which are consistent with the morphologically expected values for both topical PS administration and intravenous injection.
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Affiliation(s)
- Mikhail Kirillin
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
| | - Aleksandr Khilov
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
| | - Daria Kurakina
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
| | - Anna Orlova
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
| | - Valeriya Perekatova
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
| | - Veronika Shishkova
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
- Institute of Information Technology, Mathematics and Mechanics, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, 603022 Nizhny Novgorod, Russia
| | - Alfia Malygina
- Center for Skin Tumor Diagnostics and Treatment, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia
| | - Anna Mironycheva
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
- Center for Skin Tumor Diagnostics and Treatment, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia
| | - Irena Shlivko
- Center for Skin Tumor Diagnostics and Treatment, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia
| | - Sergey Gamayunov
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
- Nizhny Novgorod Regional Oncological Hospital, Delovaya 11/1, 603126 Nizhny Novgorod, Russia
| | - Ilya Turchin
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
| | - Ekaterina Sergeeva
- Institute of Applied Physics RAS, 46 Ulyanov St., 603950 Nizhny Novgorod, Russia
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Salomao GH, Fernandes AU, Baptista MS, Tardivo JP, Gianssante S, Veridiano JM, Toledo OMS, Petri G, Christofolini DM, Correa JA. A new Chlorin formulation promotes efficient photodynamic action in choriocapillaris of rabbit’s eyes. Bioorg Med Chem Lett 2018; 28:1870-1873. [DOI: 10.1016/j.bmcl.2018.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 03/31/2018] [Accepted: 04/03/2018] [Indexed: 11/29/2022]
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Salomao GHA, Fernandes AU, Baptista MS, Tardivo JP, Christofolini DM, Correa JA. Chlorophyllin-M: A new substance for photodynamic therapy in the retina and choroid. Lasers Surg Med 2015; 47:421-5. [DOI: 10.1002/lsm.22362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2015] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - João Paulo Tardivo
- Department of Vascular Surgery; Faculdade de Medicina do ABC; Santo Andre Sao Paulo Brazil
| | | | - João Antonio Correa
- Department of Vascular Surgery; Faculdade de Medicina do ABC; Santo Andre Sao Paulo Brazil
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