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Sokolov VS, Tashkin VY, Zykova DD, Kharitonova YV, Galimzyanov TR, Batishchev OV. Electrostatic Potentials Caused by the Release of Protons from Photoactivated Compound Sodium 2-Methoxy-5-nitrophenyl Sulfate at the Surface of Bilayer Lipid Membrane. MEMBRANES 2023; 13:722. [PMID: 37623783 PMCID: PMC10456422 DOI: 10.3390/membranes13080722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/03/2023] [Accepted: 08/06/2023] [Indexed: 08/26/2023]
Abstract
Lateral transport and release of protons at the water-membrane interface play crucial roles in cell bioenergetics. Therefore, versatile techniques need to be developed for investigating as well as clarifying the main features of these processes at the molecular level. Here, we experimentally measured the kinetics of binding of protons released from the photoactivated compound sodium 2-methoxy-5-nitrophenyl sulfate (MNPS) at the surface of a bilayer lipid membrane (BLM). We developed a theoretical model of this process describing the damage of MNPS coupled with the release of the protons at the membrane surface, as well as the exchange of MNPS molecules and protons between the membrane and solution. We found that the total change in the boundary potential difference across the membrane, ∆ϕb, is the sum of opposing effects of adsorption of MNPS anions and release of protons at the membrane-water interface. Steady-state change in the ∆ϕb due to protons decreased with the concentration of the buffer and increased with the pH of the solution. The change in the concentration of protons evaluated from measurements of ∆ϕb was close to that in the unstirred water layer near the BLM. This result, as well as rate constants of the proton exchange between the membrane and the bulk solution, indicated that the rate-limiting step of the proton surface to bulk release is the change in the concentration of protons in the unstirred layer. This means that the protons released from MNPS remain in equilibrium between the BLM surface and an adjacent water layer.
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Affiliation(s)
- Valerij S. Sokolov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt, 31, Moscow 119071, Russia (O.V.B.)
| | - Vsevolod Yu. Tashkin
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt, 31, Moscow 119071, Russia (O.V.B.)
| | - Darya D. Zykova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt, 31, Moscow 119071, Russia (O.V.B.)
- Moscow Institute of Physics and Technology, Institutski Per., 9, Moscow Region, Dolgoprudny 141701, Russia
| | - Yulia V. Kharitonova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt, 31, Moscow 119071, Russia (O.V.B.)
| | - Timur R. Galimzyanov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt, 31, Moscow 119071, Russia (O.V.B.)
| | - Oleg V. Batishchev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospekt, 31, Moscow 119071, Russia (O.V.B.)
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Batishchev OV, Kalutskii MA, Varlamova EA, Konstantinova AN, Makrinsky KI, Ermakov YA, Meshkov IN, Sokolov VS, Gorbunova YG. Antimicrobial activity of photosensitizers: arrangement in bacterial membrane matters. Front Mol Biosci 2023; 10:1192794. [PMID: 37255538 PMCID: PMC10226669 DOI: 10.3389/fmolb.2023.1192794] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/02/2023] [Indexed: 06/01/2023] Open
Abstract
Porphyrins are well-known photosensitizers (PSs) for antibacterial photodynamic therapy (aPDT), which is still an underestimated antibiotic-free method to kill bacteria, viruses, and fungi. In the present work, we developed a comprehensive tool for predicting the structure and assessment of the photodynamic efficacy of PS molecules for their application in aPDT. We checked it on a series of water-soluble phosphorus(V) porphyrin molecules with OH or ethoxy axial ligands and phenyl/pyridyl peripheral substituents. First, we used biophysical approaches to show the effect of PSs on membrane structure and their photodynamic activity in the lipid environment. Second, we developed a force field for studying phosphorus(V) porphyrins and performed all-atom molecular dynamics simulations of their interactions with bacterial lipid membranes. Finally, we obtained the structure-activity relationship for the antimicrobial activity of PSs and tested our predictions on two models of Gram-negative bacteria, Escherichia coli and Acinetobacter baumannii. Our approach allowed us to propose a new PS molecule, whose MIC50 values after an extremely low light dose of 5 J/cm2 (5.0 ± 0.4 μg/mL for E. coli and 4.9 ± 0.8 μg/mL for A. baumannii) exceeded those for common antibiotics, making it a prospective antimicrobial agent.
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Affiliation(s)
- Oleg V. Batishchev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Maksim A. Kalutskii
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina A. Varlamova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Anna N. Konstantinova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Kirill I. Makrinsky
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Yury A. Ermakov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Ivan N. Meshkov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Valerij S. Sokolov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
| | - Yulia G. Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
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Anosov A, Borisova E, Smirnova E, Korepanova E, Osipov A. Effect of Cytochrome C on the Conductance of Asolectin Membranes and the Occurrence of Through Pores at Different pHs. MEMBRANES 2023; 13:268. [PMID: 36984655 PMCID: PMC10053876 DOI: 10.3390/membranes13030268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/06/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The study of the electrical parameters of asolectin bilayer lipid membranes in the presence of cytochrome c (cyt c) at various concentrations showed that an increase in the concentration of cyt c leads to an increase in the membrane conductance and the appearance of through pores. The studied membranes did not contain cardiolipin, which is commonly used in studying the effect of cyt c on membrane permeability. In the presence of cyt c, discrete current fluctuations were recorded. The occurrence of these fluctuations may be associated with the formation of through pores. The diameter of these pores was ~0.8 nm, which is smaller than the size of the cyt c globule (~3 nm). Measurements carried out at pH values from 6.4 to 8.4 showed that the concentration dependence of the membrane conductance increases with increasing pH. To assess the binding of cyt c to the bilayer, we measured the concentration and pH dependences of the difference in surface potentials induced by the unilateral addition of cyt c. The amount of bound cyt c at the same concentrations decreased with increasing pH, which did not correspond to the conductance trend. An analysis of conductance traces leads to the conclusion that an increase in the integral conductance of membranes is associated with an increase in the lifetime of pores. The formation of "long-lived" pores, of which the residence time in the open state is longer than in the closed state, was achieved at various combinations of pHs and cyt c concentrations: the higher the pH, the lower the concentration at which the long-lived pores appeared and, accordingly, a higher conductance was observed. The increase in conductance and the formation of transmembrane pores are not due to the electrostatic interaction between cyt c and the membrane. We hypothesize that an increase in pH leads to a weakening of hydrogen bonds between lipid heads, which allows cyt c molecules to penetrate into the membrane. This disrupts the order of the bilayer and leads to the occurrence of through pores.
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Affiliation(s)
- Andrey Anosov
- The Department of Medical and Biological Physics, Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
- Kotelnikov Institute of Radioengineering and Electronics of RAS, 125009 Moscow, Russia
| | - Elizaveta Borisova
- The Department of Medical and Biological Physics, Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Elena Smirnova
- The Department of Medical and Biological Physics, Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
| | - Eugenia Korepanova
- The Department of General and Medical Biophysics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Anatoly Osipov
- The Department of General and Medical Biophysics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
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Polivanovskaia DA, Konstantinova AN, Birin KP, Sokolov VS, Batishchev OV, Gorbunova YG. Peripheral Groups of Dicationic Pyrazinoporphyrins Regulate Lipid Membrane Binding. MEMBRANES 2022; 12:membranes12090846. [PMID: 36135866 PMCID: PMC9505865 DOI: 10.3390/membranes12090846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 08/27/2022] [Accepted: 08/28/2022] [Indexed: 06/02/2023]
Abstract
Photodynamic therapy (PDT) is a widely used technique for skin cancer treatment and antimicrobial therapy. An improvement in PDT efficiency requires not only an increase in quantum yield of photosensitizer (PS) molecules but also their applicability for biological systems. Recently, we demonstrated that the activity of porphyrin-based PSs in the lipid membrane environment depends on the nature of the cation in the macrocycle due to its interactions with the lipid phosphate moiety, as well as the orientation of the PS molecules inside the membrane. Here, we report the synthesis, membrane binding properties and photodynamic efficiency of novel dicationic free-base, Ni(II) and Zn(II) pyrazinoporphyrins with terminal tetraalkylammonium units (2H-1, Ni-1 and Zn-1), to show the possibility to enhance the membrane binding of PS molecules, regardless of the central cation. All of these substances adsorb at the lipid membrane, while free-base and Zn(II) porphyrins actively generate singlet oxygen (SO) in the membranes. Thus, this study reveals a new way to tune the PDT activity of PSs in biological membranes through designing the structure of the peripheral groups in the macrocyclic photosensitizer.
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Affiliation(s)
- Daria A. Polivanovskaia
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr., 119071 Moscow, Russia
| | - Anna N. Konstantinova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr., 119071 Moscow, Russia
| | - Kirill P. Birin
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr., 119071 Moscow, Russia
| | - Valerij S. Sokolov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr., 119071 Moscow, Russia
| | - Oleg V. Batishchev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr., 119071 Moscow, Russia
| | - Yulia G. Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr., 119071 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskiy pr., 119991 Moscow, Russia
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Kustov AV, Krestyaninov MA, Kruchin SO, Shukhto OV, Kustova TV, Belykh DV, Khudyaeva IS, Koifman MO, Razgovorov PB, Berezin DB. Interaction of cationic chlorin photosensitizers with non-ionic surfactant Tween 80. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.01.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Goldshleger NF, Lapshina MA, Baulin VE, Shiryaev AA, Gorbunova YG, Tsivadze AY. Supramolecular assemblies based on crown- and phosphoryl-substituted phthalocyanines and their metal complexes in microheterogeneous media. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2893-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shokurov AV, Novak DN, Ostroverkhov PV, Grin MA, Zaytseva AV, Raitman OA, Moroté F, Cohen-Bouhacina T, Grauby-Heywang C, Selektor SL. Lipid monolayer as a simple model membrane for comparative assessment of the photodynamic therapy photosensitizer efficiency via macroscopic measurements. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 210:111958. [PMID: 32707424 DOI: 10.1016/j.jphotobiol.2020.111958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 11/17/2022]
Abstract
Cellular membrane is one of the main targets of photodynamic therapy. Its high complexity has led to the study of the efficiency of photosensitizers on artificial lipid systems mimicking membranes. However, the preliminary analysis of this efficiency remains limited due to difficulty of the model construction and/or implementation of the required measurement techniques. Hereby, we propose a quite simple way for the rapid comparative assessment of novel photosensitizers in terms of membrane photodegradation, based on simple and fast measurements, such as wetting angle and surface plasmon resonance spectroscopy. As a proof of concept, we applied this methodology to two bacteriopurpurinimide derivatives. We have shown in particular that such complementary techniques can be employed not only for the multiparametric monitoring of the kinetics of the photodegradation, but also for the comparison of the damaging efficiency of the photosensitizers in the lipid structures as well.
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Affiliation(s)
- A V Shokurov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia.
| | - D N Novak
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia; MIREA-Russian Technological University, 78 Vernadsky Avenue, 119454 Moscow, Russia
| | - P V Ostroverkhov
- MIREA-Russian Technological University, 78 Vernadsky Avenue, 119454 Moscow, Russia
| | - M A Grin
- MIREA-Russian Technological University, 78 Vernadsky Avenue, 119454 Moscow, Russia
| | - A V Zaytseva
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - O A Raitman
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - F Moroté
- Laboratoire Ondes et Matière d'Aquitaine (LOMA), UMR-CNRS 5798, Université de Bordeaux, 351 cours de la Libération, Talence Cedex 33405, France
| | - T Cohen-Bouhacina
- Laboratoire Ondes et Matière d'Aquitaine (LOMA), UMR-CNRS 5798, Université de Bordeaux, 351 cours de la Libération, Talence Cedex 33405, France
| | - C Grauby-Heywang
- Laboratoire Ondes et Matière d'Aquitaine (LOMA), UMR-CNRS 5798, Université de Bordeaux, 351 cours de la Libération, Talence Cedex 33405, France
| | - S L Selektor
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
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Jiménez-Munguía I, Fedorov AK, Abdulaeva IA, Birin KP, Ermakov YA, Batishchev OV, Gorbunova YG, Sokolov VS. Lipid Membrane Adsorption Determines Photodynamic Efficiency of β-Imidazolyl-Substituted Porphyrins. Biomolecules 2019; 9:E853. [PMID: 31835568 PMCID: PMC6995582 DOI: 10.3390/biom9120853] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/04/2019] [Accepted: 12/07/2019] [Indexed: 11/16/2022] Open
Abstract
Photosensitizers (PSs) represent a group of molecules capable of generating reactive oxygen species (ROS), such as singlet oxygen (SO); thus, they are considered to be promising agents for anti-cancer therapy. The enhancement of the photodynamic efficiency of these compounds requires increasing the PS activity in the cancer cell milieu and exactly at the target cells. In the present work, we report the synthesis, lipid membrane binding and photodynamic activity of three novel cationic PSs based on β-imidazolyl-substituted porphyrin and its Zn(II) and In(III) complexes (1H2, 1Zn and 1In). Comparison of the behavior of the investigated porphyrins at the bilayer lipid membrane (BLM) demonstrated the highest adsorption for the 1In complex and the lowest one for 1Zn. The photodynamic efficiency of these porphyrins was evaluated by determining the oxidation rate of the styryl dye, di-4-ANEPPS, incorporated into the lipid membrane. These rates were proportional to the surface density (SD) of the porphyrin molecules at the BLM and were roughly the same for all three porphyrins. This indicates that the adsorption of these porphyrins at the BLM determines their photodynamic efficiency rather than the extinction or quantum yield of singlet oxygen.
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Affiliation(s)
- Irene Jiménez-Munguía
- National University of Science and Technology “MISiS”, 4 Leninskiy pr. 119049 Moscow, Russia
| | - Arseniy K. Fedorov
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr. 119071 Moscow, Russia; (A.K.F.); (I.A.A.); (K.P.B.); (Y.A.E.); (O.V.B.); (V.S.S.)
| | - Inna A. Abdulaeva
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr. 119071 Moscow, Russia; (A.K.F.); (I.A.A.); (K.P.B.); (Y.A.E.); (O.V.B.); (V.S.S.)
| | - Kirill P. Birin
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr. 119071 Moscow, Russia; (A.K.F.); (I.A.A.); (K.P.B.); (Y.A.E.); (O.V.B.); (V.S.S.)
| | - Yury A. Ermakov
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr. 119071 Moscow, Russia; (A.K.F.); (I.A.A.); (K.P.B.); (Y.A.E.); (O.V.B.); (V.S.S.)
| | - Oleg V. Batishchev
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr. 119071 Moscow, Russia; (A.K.F.); (I.A.A.); (K.P.B.); (Y.A.E.); (O.V.B.); (V.S.S.)
- Moscow Institute of Physics and Technology, 9 Institutskiy Lane, Dolgoprudniy, 141700 Moscow Region, Russia
| | - Yulia G. Gorbunova
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr. 119071 Moscow, Russia; (A.K.F.); (I.A.A.); (K.P.B.); (Y.A.E.); (O.V.B.); (V.S.S.)
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 31 Leninskiy pr. 119119 Moscow, Russia
| | - Valerij S. Sokolov
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31/4 Leninskiy pr. 119071 Moscow, Russia; (A.K.F.); (I.A.A.); (K.P.B.); (Y.A.E.); (O.V.B.); (V.S.S.)
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