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Burloiu AM, Mihai DP, Manda G, Lupuliasa D, Neagoe IV, Socoteanu RP, Surcel M, Anghelache LI, Olariu L, Gîrd CE, Boscencu R. In Silico and In Vitro Studies on an Asymmetrical Porphyrin Derivative with Therapeutic Potential in Skin Disorders. Pharmaceuticals (Basel) 2024; 17:688. [PMID: 38931355 PMCID: PMC11206637 DOI: 10.3390/ph17060688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
For developing novel photosensitizers with therapeutic potential in non-malignant and malignant cutaneous disorders, the unsymmetrical porphyrin, 5-(2-hydroxy-3-methoxyphenyl)-10, 15, 20-tris-(4-carboxymethylphenyl) porphyrin, was evaluated in silico and in vitro. The cellular uptake of the investigated porphyrin and its ability to perform photodynamic therapy were investigated in terms of the viability, proliferation, and necrosis of human HaCaT keratinocytes and human Hs27 skin fibroblasts, in correlation with the predictions regarding diffusion through cell membranes, ADMET profile (absorption, distribution, metabolism, elimination, toxicity), and potential pharmacological mechanism. Molecular docking and 250 ns molecular dynamics simulations revealed that P5.2 has the potential to form a relatively stable complex with the carbonic anhydrase IX catalytic site, the lowest predicted free energy of binding (MM/PBSA) being -39.097 kcal/mol. The results of the in vitro study showed that P5.2 is incorporated within 24 h in the investigated cells, especially in HaCaT keratinocytes, indicating its photosensitizing ability. Nevertheless, P5.2 does not exert significant cytotoxicity in "dark" conditions. In turn, PDT induced a decrease in the number of metabolically active HaCaT keratinocytes within 24 h, accompanied by a 4-fold increase in lactate dehydrogenase release, indicating its ability to perform PDT in human skin cells. The experimental results suggest that the asymmetrical porphyrin is a promising candidate theranostics agent for skin disorders.
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Affiliation(s)
- Andreea Mihaela Burloiu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania; (A.M.B.); (D.L.); (C.E.G.); (R.B.)
| | - Dragos Paul Mihai
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania; (A.M.B.); (D.L.); (C.E.G.); (R.B.)
| | - Gina Manda
- “Victor Babeş” National Institute of Pathology, 050096 Bucharest, Romania; (I.V.N.); (M.S.)
| | - Dumitru Lupuliasa
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania; (A.M.B.); (D.L.); (C.E.G.); (R.B.)
| | - Ionela Victoria Neagoe
- “Victor Babeş” National Institute of Pathology, 050096 Bucharest, Romania; (I.V.N.); (M.S.)
| | - Radu Petre Socoteanu
- “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 060021 Bucharest, Romania
| | - Mihaela Surcel
- “Victor Babeş” National Institute of Pathology, 050096 Bucharest, Romania; (I.V.N.); (M.S.)
| | | | - Laura Olariu
- SC. Biotehnos SA, 3-5 Gorunului, 075100 Bucharest, Romania;
| | - Cerasela Elena Gîrd
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania; (A.M.B.); (D.L.); (C.E.G.); (R.B.)
| | - Rica Boscencu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania; (A.M.B.); (D.L.); (C.E.G.); (R.B.)
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Burloiu AM, Manda G, Lupuliasa D, Socoteanu RP, Mihai DP, Neagoe IV, Anghelache LI, Surcel M, Anastasescu M, Olariu L, Gîrd CE, Barbuceanu SF, Ferreira LFV, Boscencu R. Assessment of Some Unsymmetrical Porphyrins as Promising Molecules for Photodynamic Therapy of Cutaneous Disorders. Pharmaceuticals (Basel) 2023; 17:62. [PMID: 38256895 PMCID: PMC10818616 DOI: 10.3390/ph17010062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/24/2024] Open
Abstract
In order to select for further development novel photosensitizers for photodynamic therapy in cutaneous disorders, three unsymmetrical porphyrins, namely 5-(4-hydroxy-3-methoxyphenyl)-10,15,20-tris-(4-acetoxy-3-methoxyphenyl) porphyrin (P2.2), 5-(2-hydroxy-5-methoxyphenyl)-10,15,20-tris-(4-carboxymethylphenyl) porphyrin (P3.2), and 5-(2,4-dihydroxyphenyl)-10,15,20-tris-(4-acetoxy-3-methoxyphenyl) porphyrin (P4.2), along with their fully symmetrical counterparts 5,10,15,20-tetrakis-(4-acetoxy-3-methoxyphenyl) porphyrin (P2.1) and 5,10,15,20-tetrakis-(4-carboxymethylphenyl) porphyrin (P3.1) were comparatively evaluated. The absorption and fluorescence properties, as well as atomic force microscopy measurements were performed to evaluate the photophysical characteristics as well as morphological and textural properties of the mentioned porphyrins. The cellular uptake of compounds and the effect of photodynamic therapy on the viability, proliferation, and necrosis of human HaCaT keratinocytes, human Hs27 skin fibroblasts, human skin SCL II squamous cell carcinoma, and B16F10 melanoma cells were assessed in vitro, in correlation with the structural and photophysical properties of the investigated porphyrins, and with the predictions regarding diffusion through cell membranes and ADMET properties. All samples were found to be isotropic and self-similar, with slightly different degrees of aggregability, had a relatively low predicted toxicity (class V), and a predicted long half-life after systemic administration. The in vitro study performed on non-malignant and malignant skin-relevant cells highlighted that the asymmetric P2.2 porphyrin qualified among the five investigated porphyrins to be a promising photosensitizer candidate for PDT in skin disorders. P2.2 was shown to accumulate well within cells, and induced by PDT a massive decrease in the number of metabolically active skin cells, partly due to cell death by necrosis. P2.2 had in this respect a better behavior than the symmetric P.2.1 compound and the related asymmetric compound P4.2. The strong action of P2.2-mediated PDT on normal skin cells might be an important drawback for further development of this compound. Meanwhile, the P3.1 and P3.2 compounds were not able to accumulate well in skin cells, and did not elicit significant PDT in vitro. Taken together, our experiments suggest that P2.2 can be a promising candidate for the development of novel photosensitizers for PDT in skin disorders.
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Affiliation(s)
- Andreea Mihaela Burloiu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia St., 020956 Bucharest, Romania; (A.M.B.); (D.L.); (D.P.M.); (C.E.G.); (S.F.B.)
| | - Gina Manda
- “Victor Babeş” National Institute of Pathology, 050096 Bucharest, Romania; (I.V.N.); (L.-I.A.); (M.S.)
| | - Dumitru Lupuliasa
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia St., 020956 Bucharest, Romania; (A.M.B.); (D.L.); (D.P.M.); (C.E.G.); (S.F.B.)
| | - Radu Petre Socoteanu
- “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 060021 Bucharest, Romania; (R.P.S.); (M.A.)
| | - Dragos Paul Mihai
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia St., 020956 Bucharest, Romania; (A.M.B.); (D.L.); (D.P.M.); (C.E.G.); (S.F.B.)
| | - Ionela Victoria Neagoe
- “Victor Babeş” National Institute of Pathology, 050096 Bucharest, Romania; (I.V.N.); (L.-I.A.); (M.S.)
| | | | - Mihaela Surcel
- “Victor Babeş” National Institute of Pathology, 050096 Bucharest, Romania; (I.V.N.); (L.-I.A.); (M.S.)
| | - Mihai Anastasescu
- “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 060021 Bucharest, Romania; (R.P.S.); (M.A.)
| | - Laura Olariu
- “SC. Biotehnos SA”, 3-5 Gorunului St., 075100 Bucharest, Romania;
| | - Cerasela Elena Gîrd
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia St., 020956 Bucharest, Romania; (A.M.B.); (D.L.); (D.P.M.); (C.E.G.); (S.F.B.)
| | - Stefania Felicia Barbuceanu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia St., 020956 Bucharest, Romania; (A.M.B.); (D.L.); (D.P.M.); (C.E.G.); (S.F.B.)
| | - Luis Filipe Vieira Ferreira
- BSIRG—Biospectroscopy and Interfaces Research Group, iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - Rica Boscencu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia St., 020956 Bucharest, Romania; (A.M.B.); (D.L.); (D.P.M.); (C.E.G.); (S.F.B.)
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Aebisher D, Woźnicki P, Dynarowicz K, Kawczyk-Krupka A, Cieślar G, Bartusik-Aebisher D. Photodynamic Therapy and Immunological View in Gastrointestinal Tumors. Cancers (Basel) 2023; 16:66. [PMID: 38201494 PMCID: PMC10777986 DOI: 10.3390/cancers16010066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Gastrointestinal cancers are a specific group of oncological diseases in which the location and nature of growth are of key importance for clinical symptoms and prognosis. At the same time, as research shows, they pose a serious threat to a patient's life, especially at an advanced stage of development. The type of therapy used depends on the anatomical location of the cancer, its type, and the degree of progression. One of the modern forms of therapy used to treat gastrointestinal cancers is PDT, which has been approved for the treatment of esophageal cancer in the United States. Despite the increasingly rapid clinical use of this treatment method, the exact immunological mechanisms it induces in cancer cells has not yet been fully elucidated. This article presents a review of the current understanding of the mode of action of photodynamic therapy on cells of various gastrointestinal cancers with an emphasis on colorectal cancer. The types of cell death induced by PDT include apoptosis, necrosis, and pyroptosis. Anticancer effects are also a result of the destruction of tumor vasculature and activation of the immune system. Many reports exist that concern the mechanism of apoptosis induction, of which the mitochondrial pathway is most often emphasized. Photodynamic therapy may also have a beneficial effect on such aspects of cancer as the ability to develop metastases or contribute to reducing resistance to known pharmacological agents.
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Affiliation(s)
- David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
| | - Paweł Woźnicki
- Students English Division Science Club, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
| | - Klaudia Dynarowicz
- Center for Innovative Research in Medical and Natural Sciences, Medical College of the University of Rzeszów, 35-310 Rzeszów, Poland;
| | - Aleksandra Kawczyk-Krupka
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia, Batorego 15 Street, 41-902 Bytom, Poland; (A.K.-K.); (G.C.)
| | - Grzegorz Cieślar
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia, Batorego 15 Street, 41-902 Bytom, Poland; (A.K.-K.); (G.C.)
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
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Boscencu R, Radulea N, Manda G, Machado IF, Socoteanu RP, Lupuliasa D, Burloiu AM, Mihai DP, Ferreira LFV. Porphyrin Macrocycles: General Properties and Theranostic Potential. Molecules 2023; 28:molecules28031149. [PMID: 36770816 PMCID: PMC9919320 DOI: 10.3390/molecules28031149] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Despite specialists' efforts to find the best solutions for cancer diagnosis and therapy, this pathology remains the biggest health threat in the world. Global statistics concerning deaths associated with cancer are alarming; therefore, it is necessary to intensify interdisciplinary research in order to identify efficient strategies for cancer diagnosis and therapy, by using new molecules with optimal therapeutic potential and minimal adverse effects. This review focuses on studies of porphyrin macrocycles with regard to their structural and spectral profiles relevant to their applicability in efficient cancer diagnosis and therapy. Furthermore, we present a critical overview of the main commercial formulations, followed by short descriptions of some strategies approached in the development of third-generation photosensitizers.
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Affiliation(s)
- Rica Boscencu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania
- Correspondence: (R.B.); (R.P.S.); (A.M.B.); (L.F.V.F.)
| | - Natalia Radulea
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania
| | - Gina Manda
- “Victor Babeş” National Institute of Pathology, 050096 Bucharest, Romania
| | - Isabel Ferreira Machado
- Polytechnic Institute of Portalegre, 7300-110 Portalegre, Portugal
- BSIRG—Biospectroscopy and Interfaces Research Group, iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico and Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Radu Petre Socoteanu
- “Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 060021 Bucharest, Romania
- Correspondence: (R.B.); (R.P.S.); (A.M.B.); (L.F.V.F.)
| | - Dumitru Lupuliasa
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania
| | - Andreea Mihaela Burloiu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania
- Correspondence: (R.B.); (R.P.S.); (A.M.B.); (L.F.V.F.)
| | - Dragos Paul Mihai
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia, 020956 Bucharest, Romania
| | - Luis Filipe Vieira Ferreira
- BSIRG—Biospectroscopy and Interfaces Research Group, iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico and Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
- Correspondence: (R.B.); (R.P.S.); (A.M.B.); (L.F.V.F.)
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Zhdanova KA, Ivantsova AV, Vyalba FY, Usachev MN, Gradova MA, Gradov OV, Karpechenko NY, Bragina NA. Design of A3B-Porphyrin Conjugates with Terpyridine as Potential Theranostic Agents: Synthesis, Complexation with Fe(III), Gd(III), and Photodynamic Activity. Pharmaceutics 2023; 15:269. [PMID: 36678898 PMCID: PMC9865040 DOI: 10.3390/pharmaceutics15010269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 01/15/2023] Open
Abstract
This paper reports on the design and synthesis of new multifunctional porphyrin-based therapeutic agents for potential therapeutic and diagnostic applications. Zinc complexes of A3B-type meso-arylporphyrins containing OH- and COOH- groups were modified with chelating ligands based on 4'-(4-methylphenyl)-2,2':6',2″-terpyridine derivatives in high yields. Novel complexes with Gd(III), Fe(III) were obtained for these conjugates. Aggregation behaviour in solutions of different solubilisers was studied to inform the selection of the optimal solubilising platform for the porphyrins obtained; their photophysical and photochemical properties were also characterised. Micellar Pluronic F127 formulation was found to be the most effective solubiliser for stabilising the fluorescence-active monomolecular form of the photosensitisers (PS). In vitro cytotoxicity of the compounds was studied on the HEP-2 cell line with and without irradiation for 1.5 and 24 h. As a result, the IC50 of compounds 12 and 14 at an irradiation dose of 8.073 J/cm2 was shown to be 1.87 ± 0.333 and 1.4 ± 0.152 μM, respectively; without irradiation, the compound had no toxic effect within the studied concentration range (1.5 h). A test for the inhibition of metabolic cooperation or promoter activity was also performed for the abovementioned compounds, showing the efficacy and safety of the conjugates obtained. Preliminary data have indicated the high potential of the new type of PS to be promising molecular theranostic agents.
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Affiliation(s)
- Kseniya A. Zhdanova
- Institute of Fine Chemical Technologies, MIREA—Russian Technological University, 119571 Moscow, Russia
| | - Anastasia V. Ivantsova
- Institute of Fine Chemical Technologies, MIREA—Russian Technological University, 119571 Moscow, Russia
| | - Fedor Yu. Vyalba
- Institute of Fine Chemical Technologies, MIREA—Russian Technological University, 119571 Moscow, Russia
| | - Maxim N. Usachev
- Institute of Fine Chemical Technologies, MIREA—Russian Technological University, 119571 Moscow, Russia
| | - Margarita A. Gradova
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin Street 4, 119991 Moscow, Russia
| | - Oleg V. Gradov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin Street 4, 119991 Moscow, Russia
| | - Natalia Yu. Karpechenko
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, 115522 Moscow, Russia
- Ministry of Health of Russia, Pirogov National Research Medical University, 117997 Moscow, Russia
| | - Natal’ya A. Bragina
- Ministry of Health of Russia, Pirogov National Research Medical University, 117997 Moscow, Russia
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Preis E, Wojcik M, Litscher G, Bakowsky U. Editorial on the “Special Issue in Honor of Dr. Michael Weber’s 70th Birthday: Photodynamic Therapy: Rising Star in Pharmaceutical Applications”. Pharmaceutics 2022; 14:pharmaceutics14091786. [PMID: 36145534 PMCID: PMC9500869 DOI: 10.3390/pharmaceutics14091786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Thousands of years ago, phototherapy or heliotherapy was performed by ancient Egyptians, Greeks, and Romans [...]
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Affiliation(s)
- Eduard Preis
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
- Correspondence: (E.P.); (M.W.); (G.L.); (U.B.)
| | - Matthias Wojcik
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
- Correspondence: (E.P.); (M.W.); (G.L.); (U.B.)
| | - Gerhard Litscher
- President of ISLA (International Society for Medical Laser Applications), Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine, Research Unit for Complementary and Integrative Laser Medicine, Traditional Chinese Medicine (TCM) Research Center Graz, Department of Anesthesiology and Intensive Care Medicine, Medical University of Graz, Auenbruggerplatz 39, 8036 Graz, Austria
- Correspondence: (E.P.); (M.W.); (G.L.); (U.B.)
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
- Correspondence: (E.P.); (M.W.); (G.L.); (U.B.)
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Sadraeian M, Junior FFP, Miranda M, Galinskas J, Fernandes RS, da Cruz EF, Fu L, Zhang L, Diaz RS, Cabral-Miranda G, Guimarães FEG. Study of Viral Photoinactivation by UV-C Light and Photosensitizer Using a Pseudotyped Model. Pharmaceutics 2022; 14:pharmaceutics14030683. [PMID: 35336059 PMCID: PMC8955308 DOI: 10.3390/pharmaceutics14030683] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/15/2022] [Accepted: 03/15/2022] [Indexed: 01/27/2023] Open
Abstract
Different light-based strategies have been investigated to inactivate viruses. Herein, we developed an HIV-based pseudotyped model of SARS-CoV-2 (SC2) to study the mechanisms of virus inactivation by using two different strategies; photoinactivation (PI) by UV-C light and photodynamic inactivation (PDI) by Photodithazine photosensitizer (PDZ). We used two pseudoviral particles harboring the Luciferase-IRES-ZsGreen reporter gene with either a SC2 spike on the membrane or without a spike as a naked control pseudovirus. The mechanism of viral inactivation by UV-C and PDZ-based PDI were studied via biochemical characterizations and quantitative PCR on four levels; free-cell viral damage; viral cell entry; DNA integration; and expression of reporter genes. Both UV-C and PDZ treatments could destroy single stranded RNA (ssRNA) and the spike protein of the virus, with different ratios. However, the virus was still capable of binding and entering into the HEK 293T cells expressing angiotensin-converting enzyme 2 (ACE-2). A dose-dependent manner of UV-C irradiation mostly damages the ssRNA, while PDZ-based PDI mostly destroys the spike and viral membrane in concentration and dose-dependent manners. We observed that the cells infected by the virus and treated with either UV-C or PDZ-based PDI could not express the luciferase reporter gene, signifying the viral inactivation, despite the presence of RNA and DNA intact genes.
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Affiliation(s)
- Mohammad Sadraeian
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos 13560-970, SP, Brazil; (F.F.P.J.); (M.M.); (R.S.F.)
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (L.F.); (L.Z.)
- Correspondence: (M.S.); (F.E.G.G.); Tel.: +55-(16)-33739792 (F.E.G.G.)
| | - Fabio Francisco Pinto Junior
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos 13560-970, SP, Brazil; (F.F.P.J.); (M.M.); (R.S.F.)
| | - Marcela Miranda
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos 13560-970, SP, Brazil; (F.F.P.J.); (M.M.); (R.S.F.)
| | - Juliana Galinskas
- Laboratório de Retrovirologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo 04039-032, SP, Brazil; (J.G.); (E.F.d.C.); (R.S.D.)
| | - Rafaela Sachetto Fernandes
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos 13560-970, SP, Brazil; (F.F.P.J.); (M.M.); (R.S.F.)
| | - Edgar Ferreira da Cruz
- Laboratório de Retrovirologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo 04039-032, SP, Brazil; (J.G.); (E.F.d.C.); (R.S.D.)
| | - Libing Fu
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (L.F.); (L.Z.)
| | - Le Zhang
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (L.F.); (L.Z.)
| | - Ricardo Sobhie Diaz
- Laboratório de Retrovirologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo 04039-032, SP, Brazil; (J.G.); (E.F.d.C.); (R.S.D.)
| | - Gustavo Cabral-Miranda
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo (ICB/USP), São Paulo 05508-000, SP, Brazil;
- Institute of Research and Education in Child Health (PENSI), São Paulo 01228-200, SP, Brazil
| | - Francisco Eduardo Gontijo Guimarães
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos 13560-970, SP, Brazil; (F.F.P.J.); (M.M.); (R.S.F.)
- Correspondence: (M.S.); (F.E.G.G.); Tel.: +55-(16)-33739792 (F.E.G.G.)
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