1
|
Radzevičiūtė-Valčiukė E, Malyško-Ptašinskė V, Mickevičiūtė E, Kulbacka J, Rembiałkowska N, Zinkevičienė A, Novickij J, Novickij V. Calcium electroporation causes ATP depletion in cells and is effective both in microsecond and nanosecond pulse range as a modality of electrochemotherapy. Bioelectrochemistry 2024; 155:108574. [PMID: 37738862 DOI: 10.1016/j.bioelechem.2023.108574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/24/2023]
Abstract
Calcium electroporation is a modality of electrochemotherapy (ECT), which is based on intracellular electric field-mediated delivery of cytotoxic doses of calcium into the cells resulting in rapid cell death. In this work, we have developed a CHO-K1 luminescent cell line, which allowed the estimation of cell membrane permeabilization, ATP depletion and cytotoxicity evaluation without the use of additional markers and methodologies. We have shown the high efficiency of nanosecond pulses compressed into a MHz burst for application in calcium ECT treatments. The 5 kV/cm and 10 kV/cm nanosecond (100 and 600 ns) pulses were delivered in bursts of 10, 50 and 100 pulses (a total of 12 parametric protocols) and then compared to standard microsecond range sequences (100 µs × 8) of 0.4-1.4 kV/cm. The effects of calcium-free, 2 mM and 5 mM calcium electroporation treatments were characterized. It was shown that reversible electroporation is accompanied by ATP depletion associated with membrane damage, while during calcium ECT the ATP depletion is several-fold higher, which results in cell death. Finally, efficacy-wise equivalent pulse parameters from nanosecond and microsecond ranges were established, which can be used for calcium nano-ECT as a better alternative to ESOPE (European Standard Operating Procedures on Electrochemotherapy) protocols.
Collapse
Affiliation(s)
- Eivina Radzevičiūtė-Valčiukė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania; Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | | | - Eglė Mickevičiūtė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Julita Kulbacka
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania; Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw, Poland
| | - Nina Rembiałkowska
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw, Poland
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Vitalij Novickij
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania; Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania.
| |
Collapse
|
2
|
Grigalevičiūtė R, Matusevičius P, Plančiūnienė R, Stankevičius R, Radzevičiūtė-Valčiukė E, Balevičiūtė A, Želvys A, Zinkevičienė A, Zigmantaitė V, Kučinskas A, Kavaliauskas P. Understanding the Immunomodulatory Effects of Bovine Colostrum: Insights into IL-6/IL-10 Axis-Mediated Inflammatory Control. Vet Sci 2023; 10:519. [PMID: 37624306 PMCID: PMC10458264 DOI: 10.3390/vetsci10080519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/02/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
Bovine colostrum (COL), the first milk secreted by lactating cows postpartum, is a rich source of bioactive compounds that exert a significant role in the survival, growth, and immune development of neonatal calves. This study investigated the immunomodulatory effects of COL on cytokine production in vitro using a Caco-2/THP-1 macrophage co-culture model stimulated with Phorbol 12-myristate 13-acetate (PMA). COL pretreatment significantly reduced IL-6 (241.3 pg/mL) production induced by PMA (p < 0.05), while increasing IL-10 production (45.3 pg/mL), in comparison to PMA control (441.1 and 12.5 pg/mL, respectively). Further investigations revealed that the IL-6 suppressive effect of colostrum was heat-sensitive and associated with components of higher molecular mass (100 kDa). Moreover, colostrum primarily influenced THP-1 macrophages rather than Caco-2 epithelial cells. The effects of colostrum on IL-6 production were associated with reduced NF-κB activation in THP-1 macrophages. In calf-FMT transplanted C57BL/6 murine model, colostrum decreased intestinal permeability, reduced immune cell infiltration and intestinal score, and suppressed IL-6 (142.0 pg/mL) production during S. typhimurium infection, in comparison to control animals (215.2 pg/mL). These results suggest the immunomodulatory activity of bovine colostrum and its potential applications in inflammatory disorders. Further studies are needed to elucidate the underlying mechanisms and validate the findings in bovine models.
Collapse
Affiliation(s)
- Ramunė Grigalevičiūtė
- Biological Research Center, Lithuanian University of Health Sciences, Tilzes Str. 18/7, LT-47181 Kaunas, Lithuania; (V.Z.); (A.K.)
- Department of Animal Nutrition, Lithuanian University of Health Sciences, Tilzes Str. 18, LT-47181 Kaunas, Lithuania; (P.M.); (R.S.)
| | - Paulius Matusevičius
- Department of Animal Nutrition, Lithuanian University of Health Sciences, Tilzes Str. 18, LT-47181 Kaunas, Lithuania; (P.M.); (R.S.)
| | - Rita Plančiūnienė
- Institute of Microbiology and Virology, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50161 Kaunas, Lithuania;
| | - Rolandas Stankevičius
- Department of Animal Nutrition, Lithuanian University of Health Sciences, Tilzes Str. 18, LT-47181 Kaunas, Lithuania; (P.M.); (R.S.)
| | - Eivina Radzevičiūtė-Valčiukė
- Centre for Innovative Medicine, Department of Immunology, Santariskiu Str. 5, LT-08410 Vilnius, Lithuania; (E.R.-V.); (A.Ž.); (A.Z.)
| | - Austėja Balevičiūtė
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Solnavägen 1, 17177 Solna, Sweden;
| | - Augustinas Želvys
- Centre for Innovative Medicine, Department of Immunology, Santariskiu Str. 5, LT-08410 Vilnius, Lithuania; (E.R.-V.); (A.Ž.); (A.Z.)
| | - Auksė Zinkevičienė
- Centre for Innovative Medicine, Department of Immunology, Santariskiu Str. 5, LT-08410 Vilnius, Lithuania; (E.R.-V.); (A.Ž.); (A.Z.)
| | - Vilma Zigmantaitė
- Biological Research Center, Lithuanian University of Health Sciences, Tilzes Str. 18/7, LT-47181 Kaunas, Lithuania; (V.Z.); (A.K.)
| | - Audrius Kučinskas
- Biological Research Center, Lithuanian University of Health Sciences, Tilzes Str. 18/7, LT-47181 Kaunas, Lithuania; (V.Z.); (A.K.)
| | - Povilas Kavaliauskas
- Biological Research Center, Lithuanian University of Health Sciences, Tilzes Str. 18/7, LT-47181 Kaunas, Lithuania; (V.Z.); (A.K.)
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell University, 1300 York Avenue, New York, NY 10065, USA
- Department of Microbiology and Immunology, University of Maryland Baltimore School of Medicine, Baltimore, MD 21201, USA
- Institute of Infectious Diseases and Pathogenic Microbiology, Birstono Str. 38A, LT-59116 Prienai, Lithuania
| |
Collapse
|
3
|
Radzevičiūtė-Valčiukė E, Želvys A, Mickevičiūtė E, Gečaitė J, Zinkevičienė A, Malyško-Ptašinskė V, Kašėta V, Novickij J, Ivaškienė T, Novickij V. Calcium Electrochemotherapy for Tumor Eradication and the Potential of High-Frequency Nanosecond Protocols. Pharmaceuticals (Basel) 2023; 16:1083. [PMID: 37630998 PMCID: PMC10460074 DOI: 10.3390/ph16081083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Calcium electroporation (CaEP) is an innovative approach to treating cancer, involving the internalization of supraphysiological amounts of calcium through electroporation, which leads to cell death. CaEP enables the replacement of chemotherapeutics (e.g., bleomycin). Here, we present a standard microsecond (μsCaEP) and novel high-frequency nanosecond protocols for calcium electroporation (nsCaEP) for the elimination of carcinoma tumors in C57BL/6J mice. We show the efficacy of CaEP in eliminating tumors and increasing their survival rates in vivo. The antitumor immune response after the treatment was observed by investigating immune cell populations in tumors, spleens, lymph nodes, and blood, as well as assessing antitumor antibodies. CaEP treatment resulted in an increased percentage of CD4+ and CD8+ central memory T cells and decreased splenic myeloid-derived suppressor cells (MDSC). Moreover, increased levels of antitumor IgG antibodies after CaEP treatment were detected. The experimental results demonstrated that the administration of CaEP led to tumor growth delay, increased survival rates, and stimulated immune response, indicating a potential synergistic relationship between CaEP and immunotherapy.
Collapse
Affiliation(s)
- Eivina Radzevičiūtė-Valčiukė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (J.G.); (A.Z.); (T.I.)
- Faculty of Electronics, Vilnius Gediminas Technical University, 08412 Vilnius, Lithuania; (V.M.-P.); (J.N.)
| | - Augustinas Želvys
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (J.G.); (A.Z.); (T.I.)
| | - Eglė Mickevičiūtė
- Department of Biomodels, State Research Institute Centre for Innovative Medicine, 11342 Vilnius, Lithuania; (E.M.); (V.K.)
| | - Jovita Gečaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (J.G.); (A.Z.); (T.I.)
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (J.G.); (A.Z.); (T.I.)
| | - Veronika Malyško-Ptašinskė
- Faculty of Electronics, Vilnius Gediminas Technical University, 08412 Vilnius, Lithuania; (V.M.-P.); (J.N.)
| | - Vytautas Kašėta
- Department of Biomodels, State Research Institute Centre for Innovative Medicine, 11342 Vilnius, Lithuania; (E.M.); (V.K.)
| | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, 08412 Vilnius, Lithuania; (V.M.-P.); (J.N.)
| | - Tatjana Ivaškienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (J.G.); (A.Z.); (T.I.)
| | - Vitalij Novickij
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (J.G.); (A.Z.); (T.I.)
- Faculty of Electronics, Vilnius Gediminas Technical University, 08412 Vilnius, Lithuania; (V.M.-P.); (J.N.)
| |
Collapse
|
4
|
Radzevičiūtė-Valčiukė E, Gečaitė J, Želvys A, Zinkevičienė A, Žalnėravičius R, Malyško-Ptašinskė V, Nemeikaitė-Čenienė A, Kašėta V, German N, Novickij J, Ramanavičienė A, Kulbacka J, Novickij V. Improving NonViral Gene Delivery Using MHz Bursts of Nanosecond Pulses and Gold Nanoparticles for Electric Field Amplification. Pharmaceutics 2023; 15:pharmaceutics15041178. [PMID: 37111663 PMCID: PMC10146442 DOI: 10.3390/pharmaceutics15041178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
Gene delivery by the pulsed electric field is a promising alternative technology for nonviral transfection; however, the application of short pulses (i.e., nanosecond) is extremely limited. In this work, we aimed to show the capability to improve gene delivery using MHz frequency bursts of nanosecond pulses and characterize the potential use of gold nanoparticles (AuNPs: 9, 13, 14, and 22 nm) in this context. We have used bursts of MHz pulses 3/5/7 kV/cm × 300 ns × 100 and compared the efficacy of the parametric protocols to conventional microsecond protocols (100 µs × 8, 1 Hz) separately and in combination with nanoparticles. Furthermore, the effects of pulses and AuNPs on the generation of reactive oxygen species (ROS) were analyzed. It was shown that gene delivery using microsecond protocols could be significantly improved with AuNPs; however, the efficacy is strongly dependent on the surface charge of AuNPs and their size. The capability of local field amplification using AuNPs was also confirmed by finite element method simulation. Finally, it was shown that AuNPs are not effective with nanosecond protocols. However, MHz protocols are still competitive in the context of gene delivery, resulting in low ROS generation, preserved viability, and easier procedure to trigger comparable efficacy.
Collapse
Affiliation(s)
- Eivina Radzevičiūtė-Valčiukė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
- Faculty of Electronics, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania
| | - Jovita Gečaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
| | - Augustinas Želvys
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
| | - Rokas Žalnėravičius
- State Research Institute Center for Physical Science and Technology, 02300 Vilnius, Lithuania
| | | | - Aušra Nemeikaitė-Čenienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
| | - Vytautas Kašėta
- Department of Biomodels, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
| | - Natalija German
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
| | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania
| | - Almira Ramanavičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
| | - Julita Kulbacka
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Vitalij Novickij
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania
- Faculty of Electronics, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania
| |
Collapse
|
5
|
Novickij V, Zinkevičienė A, Malyško V, Novickij J, Kulbacka J, Rembialkowska N, Girkontaitė I. Bioluminescence as a sensitive electroporation indicator in sub-microsecond and microsecond range of electrical pulses. J Photochem Photobiol B 2020; 213:112066. [PMID: 33142215 DOI: 10.1016/j.jphotobiol.2020.112066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/28/2020] [Accepted: 10/20/2020] [Indexed: 12/11/2022]
Abstract
The cell membrane permeabilization in electroporation studies is usually quantified using fluorescent markers such as propidium iodide (PI) or YO-PRO, while Chinese Hamster Ovary cell line frequently serves as a model. In this work, as an alternative, we propose a sensitive methodology for detection and analysis of electroporation phenomenon based on bioluminescence. Luminescent mice myeloma SP2/0 cells (transfected using Luciferase-pcDNA3 plasmid) were used as a cell model. Electroporation has been studied using the 0.1-5 μs × 250 and 100 μs × 1-8 pulsing protocols in 1-2.5 kV/cm PEF range. It was shown that the bioluminescence response is dependent on the cell permeabilization state and can be effectively used to detect even weak permeabilization. During saturated permeabilization the methodology accurately predicts the losses of cell viability due to irreversible electroporation. The results have been superpositioned with permeabilization and pore resealing (1 h post-treatment) data using PI. Also, the viability of the cells was evaluated. Lastly, the SP2/0 tumors have been developed in BALB/C mice and the methodology has been tested in vivo using electrochemotherapy with bleomycin.
Collapse
Affiliation(s)
- Vitalij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania.
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Veronika Malyško
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Wroclaw, Poland
| | - Nina Rembialkowska
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Wroclaw, Poland
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| |
Collapse
|
6
|
Novickij V, Malyško V, Želvys A, Balevičiūtė A, Zinkevičienė A, Novickij J, Girkontaitė I. Electrochemotherapy Using Doxorubicin and Nanosecond Electric Field Pulses: A Pilot in Vivo Study. Molecules 2020; 25:E4601. [PMID: 33050300 PMCID: PMC7587179 DOI: 10.3390/molecules25204601] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 12/23/2022] Open
Abstract
Pulsed electric field (PEF) is frequently used for intertumoral drug delivery resulting in a well-known anticancer treatment-electrochemotherapy. However, electrochemotherapy is associated with microsecond range of electrical pulses, while nanosecond range electrochemotherapy is almost non-existent. In this work, we analyzed the feasibility of nanosecond range pulse bursts for successful doxorubicin-based electrochemotherapy in vivo. The conventional microsecond (1.4 kV/cm × 100 µs × 8) procedure was compared to the nanosecond (3.5 kV/cm × 800 ns × 250) non-thermal PEF-based treatment. As a model, Sp2/0 tumors were developed. Additionally, basic current and voltage measurements were performed to detect the characteristic conductivity-dependent patterns and to serve as an indicator of successful tumor permeabilization both in the nano and microsecond pulse range. It was shown that nano-electrochemotherapy can be the logical evolution of the currently established European Standard Operating Procedures for Electrochemotherapy (ESOPE) protocols, offering better energy control and equivalent treatment efficacy.
Collapse
Affiliation(s)
- Vitalij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, 03227 Vilnius, Lithuania; (V.M.); (J.N.)
| | - Veronika Malyško
- Faculty of Electronics, Vilnius Gediminas Technical University, 03227 Vilnius, Lithuania; (V.M.); (J.N.)
| | - Augustinas Želvys
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (A.B.); (A.Z.); (I.G.)
| | - Austėja Balevičiūtė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (A.B.); (A.Z.); (I.G.)
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (A.B.); (A.Z.); (I.G.)
| | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, 03227 Vilnius, Lithuania; (V.M.); (J.N.)
| | - Irutė Girkontaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08406 Vilnius, Lithuania; (A.Ž.); (A.B.); (A.Z.); (I.G.)
| |
Collapse
|
7
|
Novickij V, Balevičiūtė A, Ruzgys P, Šatkauskas S, Novickij J, Zinkevičienė A, Girkontaitė I. Sub-microsecond electrotransfection using new modality of high frequency electroporation. Bioelectrochemistry 2020; 136:107594. [PMID: 32679337 DOI: 10.1016/j.bioelechem.2020.107594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/28/2020] [Accepted: 06/28/2020] [Indexed: 12/21/2022]
Abstract
Micro-millisecond range electric field pulses have been used for decades to facilitate DNA transfer into cells and tissues, while the growing number of clinical trials underline the strong potential of DNA electroporation. In this work, we present new sub-microsecond range protocols and methodology enabling successful electrotransfection in the sub-microsecond range. To facilitate DNA transfer, a 3 kV/60 A and high frequency (1 MHz) sub-microsecond range square wave generator was applied in the study. As a model, Chinese hamster ovary (CHO-K1) cells were used. Sub-microsecond range (300-700 ns) high frequency pulsed electric fields of 2-15 kV/cm were applied. The efficiency of electrotransfection was evaluated using two green fluorescent protein encoding plasmids of different size (3.5 kbp and 4.7 kbp). It was shown that transfection efficiency cannot be effectively improved with increase of the number of pulses after a certain threshold, however, independently on the plasmid size, the proposed sub-microsecond range pulsing methodology (2-5 kV/cm; n = 250) efficiency-wise was equivalent to 1.5 kV/cm × 100 μs × 4 electroporation procedure. The results of the study are useful for further development of in vitro and in vivo methods for effective electrotransfer of DNA using shorter pulses.
Collapse
Affiliation(s)
- Vitalij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania.
| | - Austėja Balevičiūtė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Paulius Ruzgys
- Biophysical Research Group, Vytautas Magnus University, Kaunas, Lithuania
| | - Saulius Šatkauskas
- Biophysical Research Group, Vytautas Magnus University, Kaunas, Lithuania
| | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| |
Collapse
|
8
|
Murauskas A, Staigvila G, Girkontaitė I, Zinkevičienė A, Ruzgys P, Šatkauskas S, Novickij J, Novickij V. Predicting electrotransfer in ultra-high frequency sub-microsecond square wave electric fields. Electromagn Biol Med 2019; 39:1-8. [PMID: 31884821 DOI: 10.1080/15368378.2019.1710529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Measurement of cell transmembrane potential (TMP) is a complex methodology involving patch-clamp methods or fluorescence-based potentiometric markers, which have limited to no applicability during ultrafast charging and relaxation phenomena. In such a case, analytical methods are applied for evaluation of the voltage potential changes in biological cells. In this work, the TMP-based electrotransfer mechanism during ultra-high frequency (≥1 MHz) electric fields is studied and the phenomenon of rapid membrane charge accumulation, which is non-occurrent during conventional low-frequency electroporation is simulated using finite element method (FEM). The influence of extracellular medium conductivity (0.1, 1.5 S/m) and pulse rise/fall times (10-50 ns) TMP generation are presented. It is shown that the medium conductivity has a dramatic influence on the electroporation process in the high-frequency range of applied pulsed electric fields (PEF). The applied model allowed to grasp the differences in polarization between 100 and 900 ns PEF and enabled successful prediction of the experimental outcome of propidium iodide electrotransfer into CHO-K1 cells and the conductivity-dependent patterns of MHz range PEF-triggered electroporation were determined. The results of this study form recommendations for development and pre-evaluation of future PEF protocols and generators based on ultra-high frequency electroporation for anticancer and gene therapies.
Collapse
Affiliation(s)
- Arūnas Murauskas
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Gediminas Staigvila
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Irutė Girkontaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Paulius Ruzgys
- Biophysics Group, Vytautas Magnus University, Kaunas, Lithuania
| | | | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Vitalij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, Vilnius, Lithuania
| |
Collapse
|
9
|
Novickij V, Čėsna R, Perminaitė E, Zinkevičienė A, Characiejus D, Novickij J, Šatkauskas S, Ruzgys P, Girkontaitė I. Antitumor Response and Immunomodulatory Effects of Sub-Microsecond Irreversible Electroporation and Its Combination with Calcium Electroporation. Cancers (Basel) 2019; 11:cancers11111763. [PMID: 31717542 PMCID: PMC6896087 DOI: 10.3390/cancers11111763] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 01/04/2023] Open
Abstract
In this work, we have investigated the feasibility of sub-microsecond range irreversible electroporation (IRE) with and without calcium electroporation in vivo. As a model, BALB/C mice were used and bioluminescent SP2/0 myeloma tumor models were developed. Tumors were treated with two separate pulsed electric field (PEF) pulsing protocols PEF1: 12 kV/cm × 200 ns × 500 (0.006 J/pulse) and PEF2: 12 kV/cm × 500 ns × 500 (0.015 J/pulse), which were delivered with and without Ca2+ (168 mM) using parallel plate electrodes at a repetition frequency of 100 Hz. Both PEF1 and PEF2 treatments reduced tumor growth and prolonged the life span of the mice, however, the PEF2 protocol was more efficient. The delay in tumor renewal was the biggest when a combination of IRE with calcium electroporation was used, however, we did not obtain significant differences in the final mouse survival compared to PEF2 alone. Anti-tumor immune responses were also investigated after treatment with PEF2 and PEF2+Ca. In both cases the treated mice had enlarged spleens and increased spleen T cell numbers, lower percentages of suppressor cell subsets (conventional CD4+CD25+ Treg, CD4+CD25−DX5+ Tr1, CD8+DX5+, CD4+CD28−, CD8+CD28−), changed proportions of Tcm and Tef/Tem T cells in the spleen and increased amount of tumor cell specific antibodies in the sera. The treatment based on IRE was effective against primary tumors, destroyed the tumor microenvironment and induced an anti-tumor immune response, however, it was not sufficient for complete control of tumor metastasis.
Collapse
Affiliation(s)
- Vitalij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, 03227 Vilnius, Lithuania
- Correspondence: (V.N.); (I.G.)
| | - Robertas Čėsna
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08410 Vilnius, Lithuania
| | - Emilija Perminaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08410 Vilnius, Lithuania
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08410 Vilnius, Lithuania
| | - Dainius Characiejus
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08410 Vilnius, Lithuania
| | - Jurij Novickij
- Faculty of Electronics, Vilnius Gediminas Technical University, 03227 Vilnius, Lithuania
| | - Saulius Šatkauskas
- Biophysical Research Group, Vytautas Magnus University, 44404 Kaunas, Lithuania
| | - Paulius Ruzgys
- Biophysical Research Group, Vytautas Magnus University, 44404 Kaunas, Lithuania
| | - Irutė Girkontaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, 08410 Vilnius, Lithuania
- Correspondence: (V.N.); (I.G.)
| |
Collapse
|
10
|
Zinkevičienė A, Dumalakienė I, Mieliauskaitė D, Vilienė R, Narkevičiūtė I, Girkontaitė I. sICAM-1 as potential additional parameter in the discrimination of the Sjögren syndrome and non-autoimmune sicca syndrome: a pilot study. Clin Rheumatol 2019; 38:2803-2809. [PMID: 31152257 DOI: 10.1007/s10067-019-04621-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/17/2019] [Accepted: 05/21/2019] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Both Sjögren's syndrome (SS) and non-autoimmune sicca syndrome (nSS) can show symptoms of dry eyes and a dry mouth, and objective reductions in tear and saliva production. Dry eyes and dry mouth are frequent but they are distinct pathological entities that require diagnostic discrimination. METHODS The aim of present study was to compare the serum levels of sICAM-1, TFF3, RANTES, adiponectin, and FGF in primary (pSS), secondary due to rheumatoid arthritis (sSS), non-autoimmune sicca syndrome (nSS), and healthy groups. The serum levels of selected molecules were determined by enzyme-linked immunosorbent assay (ELISA) in 29 patients with pSS, 30 with sSS, 17 with nSS, and 15 healthy subjects. RESULTS sICAM-1 was significantly elevated in pSS and sSS patients compared with nSS group. Levels of FGF, TFF3, and RANTES were significantly increased in pSS, sSS, and nSS patients compared with healthy controls. No significant correlations were found between the levels of measured molecules and the clinical parameters. CONCLUSIONS Our study showed that sICAM-1 might be useful as an additional parameter for differential diagnosis of SS and nSS, and TFF could be additional diagnostic marker for SS diagnosis. KEY POINTS • sICAM-1 was significantly elevated in Sjögren syndrome patients compared with non-autoimmune sicca syndrome group. • TFF was significantly elevated in Sjögren syndrome patients compared with healthy controls. • They might be useful as additional parameters for differential diagnosis.
Collapse
Affiliation(s)
- Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Vilnius, Lithuania. .,Department of Experimental, Preventive and Clinical Medicine, State Research Institute Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Vilnius, Lithuania.
| | - Irena Dumalakienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Vilnius, Lithuania
| | - Diana Mieliauskaitė
- Department of Experimental, Preventive and Clinical Medicine, State Research Institute Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Vilnius, Lithuania
| | - Rita Vilienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Vilnius, Lithuania
| | - Ieva Narkevičiūtė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Vilnius, Lithuania
| | - Irutė Girkontaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių g. 5, LT-08406, Vilnius, Lithuania
| |
Collapse
|
11
|
Novickij V, Zinkevičienė A, Stanevičienė R, Gruškienė R, Servienė E, Vepštaitė-Monstavičė I, Krivorotova T, Lastauskienė E, Sereikaitė J, Girkontaitė I, Novickij J. Inactivation of Escherichia coli Using Nanosecond Electric Fields and Nisin Nanoparticles: A Kinetics Study. Front Microbiol 2018; 9:3006. [PMID: 30619116 PMCID: PMC6299027 DOI: 10.3389/fmicb.2018.03006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 11/20/2018] [Indexed: 01/24/2023] Open
Abstract
Nisin is a recognized bacteriocin widely used in food processing, however, being ineffective against gram-negative bacteria and in complex food systems. As a result, the research of methods that have cell wall–permeabilizing activity is required. In this study, electroporation to trigger sensitization of gram-negative bacteria to nisin-loaded pectin nanoparticles was used. As a model microorganism, bioluminescent strain of E. coli was introduced. Inactivation kinetics using nanosecond pulsed electric fields (PEFs) and nisin nanoparticles have been studied in a broad range (100–900 ns, 10–30 kV/cm) of pulse parameters. As a reference, the microsecond range protocols (100 μs × 8) have been applied. It was determined that the 20–30 kV/cm electric field with pulse duration ranging from 500 to 900 ns was sufficient to cause significant permeabilization of E. coli to trigger a synergistic response with the nisin treatment. The kinetics of the inactivation was studied with a time resolution of 2.5 min, which provided experimental evidence that the efficacy of nisin-based treatment can be effectively controlled in time using PEF. The results and the proposed methodology for rapid detection of bacteria inactivation rate based on bioluminescence may be useful in the development and optimization of protocols for PEF-based treatments.
Collapse
Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | | | - Rūta Gruškienė
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Elena Servienė
- Laboratory of Genetics, Nature Research Centre, Vilnius, Lithuania.,Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | | | - Tatjana Krivorotova
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Vilnius, Lithuania.,Institute of Chemistry, Vilnius University, Vilnius, Lithuania
| | - Eglė Lastauskienė
- Institute of Biosciences, Life Sciences Centre, Vilnius University, Vilnius, Lithuania
| | - Jolanta Sereikaitė
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Irutė Girkontaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Vilnius, Lithuania.,Institute for Telecommunications, Vilnius Gediminas Technical University, Vilnius, Lithuania
| |
Collapse
|
12
|
Novickij V, Zinkevičienė A, Perminaitė E, Čėsna R, Lastauskienė E, Paškevičius A, Švedienė J, Markovskaja S, Novickij J, Girkontaitė I. Non-invasive nanosecond electroporation for biocontrol of surface infections: an in vivo study. Sci Rep 2018; 8:14516. [PMID: 30266920 PMCID: PMC6162327 DOI: 10.1038/s41598-018-32783-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 09/14/2018] [Indexed: 12/20/2022] Open
Abstract
Invasive infections caused by drug-resistant bacteria are frequently responsible for fatal sepsis, morbidity and mortality rates. In this work, we propose a new methodology based on nanosecond high frequency electric field bursts, which enables successful eradication of bacteria in vivo. High frequency (15 kHz) 15–25 kV/cm 300–900 ns pulsing bursts were used separately and in combination with acetic acid (0.1–1%) to treat Pseudomonas aeruginosa in a murine model. Acetic acid 1% alone was effective resulting in almost 10-fold reduction of bacteria viability, however combination of nanosecond electric field and acetic acid 1% treatment was the most successful showing almost full eradication (0.01% survival compared to control) of the bacteria in the contaminated area. The short duration of the pulses (sub-microsecond) and high frequency (kHz range) of the burst enabled reduction of the muscle contractions to barely detectable level while the proposed applicators ensured predominantly topical treatment, without electroporation of deeper tissues. The results of our study have direct application for treatment of wounds and ulcers when chemical treatment is no longer effective.
Collapse
Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Vilnius, Lithuania.
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Emilija Perminaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Robertas Čėsna
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| | - Eglė Lastauskienė
- Institute of Biosciences, Life Sciences Centre, Vilnius University, Vilnius, Lithuania
| | | | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Vilnius, Lithuania
| | | | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Vilnius, Lithuania
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Vilnius, Lithuania
| |
Collapse
|
13
|
Novickij V, Zinkevičienė A, Valiulis J, Švedienė J, Paškevičius A, Lastauskienė E, Markovskaja S, Novickij J, Girkontaitė I. Different permeabilization patterns of splenocytes and thymocytes to combination of pulsed electric and magnetic field treatments. Bioelectrochemistry 2018; 122:183-190. [DOI: 10.1016/j.bioelechem.2018.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 12/18/2022]
|
14
|
Novickij V, Švedienė J, Paškevičius A, Markovskaja S, Lastauskienė E, Zinkevičienė A, Girkontaitė I, Novickij J. Induction of Different Sensitization Patterns of MRSA to Antibiotics Using Electroporation. Molecules 2018; 23:molecules23071799. [PMID: 30037022 PMCID: PMC6100619 DOI: 10.3390/molecules23071799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 01/04/2023] Open
Abstract
Treatment of bacteria-associated infections is complicated and antibiotic treatment alone is often inadequate to overcome biofilm infections. Physical methods allow overcoming this problem and propose solutions that are non-dependent on drug resistance. In this work, we investigated the feasibility of pulsed electric fields for sensitization of MRSA to common antibiotics. We analyzed the efficacy of inactivation of methicillin-resistant Staphylococcus aureus in 5–20 kV/cm electric field separately and in combination with gentamicin, doxycycline, ciprofloxacin, sulfamethoxazole, and vancomycin. Combined treatment allowed using up to 1000-fold smaller concentrations of antibiotics to induce the same inactivation of S. aureus.
Collapse
Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227 Vilnius, Lithuania.
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412 Vilnius, Lithuania.
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412 Vilnius, Lithuania.
- Laboratory of Microbiology of the Centre of Laboratory Medicine, Vilnius University Hospital Santariškių Clinics, Santariskiu g. 2, 08406 Vilnius, Lithuania.
| | - Svetlana Markovskaja
- Laboratory of Mycology, Nature Research Centre, Žaliųjų ežerų st. 49, 08406 Vilnius, Lithuania.
| | - Eglė Lastauskienė
- Department of Microbiology and Biotechnology, Vilnius University, Sauletekio al. 7, 10257 Vilnius, Lithuania.
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių st. 5, 08406 Vilnius, Lithuania.
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių st. 5, 08406 Vilnius, Lithuania.
| | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227 Vilnius, Lithuania.
| |
Collapse
|
15
|
Novickij V, Švedienė J, Paškevičius A, Markovskaja S, Girkontaitė I, Zinkevičienė A, Lastauskienė E, Novickij J. Pulsed electric field-assisted sensitization of multidrug-resistant Candida albicans to antifungal drugs. Future Microbiol 2017; 13:535-546. [PMID: 29227694 DOI: 10.2217/fmb-2017-0245] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM Determine the influence of pH on the inactivation efficiency of Candida albicans in pulsed electric fields (PEF) and evaluate the possibilities for sensitization of a drug-resistant strain to antifungal drugs. MATERIALS & METHODS The effects of PEF (2.5-25 kVcm-1) with fluconazole, terbinafine and naftifine were analyzed at a pH range of 3.0-9.0. Membrane permeabilization was determined by flow cytometry and propidium iodide. RESULTS PEF induced higher inactivation of C. albicans at low pH and increased sensitivity to terbinafine and naftifine to which the strain was initially resistant. Up to 5 log reduction in cell survival was achieved. CONCLUSION A proof of concept that electroporation can be used to sensitize drug-resistant microorganisms was presented, which is promising for treating biofilm-associated infections.
Collapse
Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko St 41, 03227 Vilnius, Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos St 2, 08412 Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos St 2, 08412 Vilnius, Lithuania.,Laboratory of Microbiology of the Centre of Laboratory Medicine, Vilnius University Hospital Santariškių Clinics, Santariškių St 2, 08661 Vilnius, Lithuania
| | - Svetlana Markovskaja
- Laboratory of Mycology, Nature Research Centre, Žaliųjų ežerų St 49, 08406 Vilnius, Lithuania
| | - Irutė Girkontaitė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių St 5, 08406 Vilnius, Lithuania
| | - Auksė Zinkevičienė
- State Research Institute Centre for Innovative Medicine, Department of Immunology, Santariškių St 5, 08406 Vilnius, Lithuania
| | - Eglė Lastauskienė
- Department of Microbiology & Biotechnology, Vilnius University, Sauletekio al. 7, 10257 Vilnius, Lithuania
| | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko St 41, 03227 Vilnius, Lithuania
| |
Collapse
|
16
|
Novickij V, Lastauskienė E, Švedienė J, Grainys A, Staigvila G, Paškevičius A, Girkontaitė I, Zinkevičienė A, Markovskaja S, Novickij J. Membrane Permeabilization of Pathogenic Yeast in Alternating Sub-microsecond Electromagnetic Fields in Combination with Conventional Electroporation. J Membr Biol 2017; 251:189-195. [PMID: 28238117 DOI: 10.1007/s00232-017-9951-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/15/2017] [Indexed: 12/14/2022]
Abstract
Recently, a novel contactless treatment method based on high-power pulsed electromagnetic fields (PEMF) was proposed, which results in cell membrane permeabilization effects similar to electroporation. In this work, a new PEMF generator based on multi-stage Marx circuit topology, which is capable of delivering 3.3 T, 0.19 kV/cm sub-microsecond pulses was used to permeabilize pathogenic yeast Candida albicans separately and in combination with conventional square wave electroporation (8-17 kV/cm, 100 μs). Bursts of 10, 25, and 50 PEMF pulses were used. The yeast permeabilization rate was evaluated using flow cytometric analysis and propidium iodide (PI) assay. A statistically significant (P < 0.05) combinatorial effect of electroporation and PEMF treatment was detected. Also the PEMF treatment (3.3 T, 50 pulses) resulted in up to 21% loss of yeast viability, and a dose-dependent additive effect with pulsed electric field was observed. As expected, increase of the dB/dt and subsequently the induced electric field amplitude resulted in a detectable effect solely by PEMF, which was not achievable before for yeasts in vitro.
Collapse
Affiliation(s)
- Vitalij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania.
| | - Eglė Lastauskienė
- Department of Microbiology and Biotechnology, Vilnius University, Sauletekio al. 7, 10257, Vilnius, Lithuania
| | - Jurgita Švedienė
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412, Vilnius, Lithuania
| | - Audrius Grainys
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania
| | - Gediminas Staigvila
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania
| | - Algimantas Paškevičius
- Laboratory of Biodeterioration Research, Nature Research Centre, Akademijos st. 2, 08412, Vilnius, Lithuania
| | - Irutė Girkontaitė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių st. 5, 08406, Vilnius, Lithuania
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių st. 5, 08406, Vilnius, Lithuania
| | - Svetlana Markovskaja
- Laboratory of Mycology, Nature Research Centre, Žaliųjų ežerų st. 49, 08406, Vilnius, Lithuania
| | - Jurij Novickij
- Institute of High Magnetic Fields, Vilnius Gediminas Technical University, Naugarduko st. 41, 03227, Vilnius, Lithuania
| |
Collapse
|
17
|
Zinkevičienė A, Kainov D, Girkontaitė I, Lastauskienė E, Kvedarienė V, Fu Y, Anders S, Velagapudi V. Activation of Tryptophan and Phenylalanine Catabolism in the Remission Phase of Allergic Contact Dermatitis: A Pilot Study. Int Arch Allergy Immunol 2016; 170:262-268. [PMID: 27771694 DOI: 10.1159/000450789] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 09/12/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Allergic contact dermatitis (ACD) is an inflammatory skin disease caused by repeated skin exposure to contact allergens. The severity and duration of this disease are associated with many different factors. Some of these factors may represent markers for monitoring disease activity and the individual response to an intervention. METHODS We used a targeted metabolomics approach to find such factors in the serum of individuals with ACD. Metabolomics profiles were examined and compared in the acute phase of the disease and also in the absence of disease activity. RESULTS Our study identified a significant remission phase of ACD-associated systemic biochemical shifts in 2 metabolic pathways: tryptophan-kynurenine and phenylalanine-tyrosine. CONCLUSIONS Although the responsible mechanisms are unclear, these results suggest that the remission phase of ACD is linked to tryptophan metabolism via kynurenine and phenylalanine-tyrosine pathways. However, further replication studies with a larger number of subjects and their subgroups are necessary to validate our results. These studies may provide a new perspective with which to understand the mechanism of and find potential biomarkers of ACD, as well as a new reference for personalized treatment.
Collapse
Affiliation(s)
- Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Zinkevičienė A, Kainov D, Lastauskienė E, Kvedarienė V, Bychkov D, Byrne M, Girkontaitė I. Serum Biomarkers of Allergic Contact Dermatitis: A Pilot Study. Int Arch Allergy Immunol 2016; 168:161-4. [PMID: 26790150 DOI: 10.1159/000442749] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/24/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Allergic contact dermatitis (ACD) is an inflammatory skin disease caused by repeated skin exposure to contact allergens. The goal of this pilot study was to identify inflammatory proteins which can serve as biomarkers for ACD. METHODS We measured levels of 102 cytokines, chemokines, and growth factors in the sera of 16 ACD patients during acute and remission phases, and 16 healthy volunteers. RESULTS Serum levels of adiponectin, chemokine (C-C motif) ligand 5 (CCL5), C-reactive protein (CRP), chitinase 3-like 1 (CHI3L1), complement factor D (CFD), endoglin, lipocalin-2, osteopontin, retinol-binding protein 4 (RBP4), and platelet factor 4 (PF4) were significantly higher, whereas levels of trefoil factor 3 (TFF3) were significantly lower, in ACD patients than in healthy controls. In ACD patients, serum levels of CCL5 were elevated, whereas levels of TFF3, soluble intercellular adhesion molecule-1 (sICAM-1), and platelet-derived growth factor (PDGF)-AB/BB were found to be lower during the remission phase of the disease. CONCLUSIONS Serum levels of adiponectin, CCL5, CRP, CHI3L1, CFD, endoglin, lipocalin-2, osteopontin, RBP4, PF4, and TFF3 might be exploited as biomarkers for ACD, whereas levels of CCL5, TFF3, sICAM-1, and PDGF-AB/BB might be exploited for evaluation of disease progression and efficacy of ACD treatment.
Collapse
Affiliation(s)
- Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | | | | | | | | | | | | |
Collapse
|
19
|
Šaulienė I, Greičiuvienė J, Šukienė L, Juškevičiūtė N, Benner C, Zinkevičienė A, Ripatti S, Donner K, Kainov D. Genetic Loci Associated with Allergic Sensitization in Lithuanians. PLoS One 2015. [PMID: 26214689 PMCID: PMC4516305 DOI: 10.1371/journal.pone.0134188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Allergic rhinitis (AR) is a common and complex disease. It is associated with environmental as well as genetic factors. Three recent genome-wide association studies (GWAS) reported altogether 47 single nucleotide polymorphisms (SNPs) associated with AR or allergic sensitization (AS) in Europeans and North Americans. Two follow up studies in Swedish and Chinese replicated 15 associations. In these studies individuals were selected based on the self-reported AR, or AR/AS diagnosed using blood IgE test or skin prick test (SPT), which were performed often without restriction to specific allergens. Here we performed third replication study in Lithuanians. We used SPT and carefully selected set of allergens prevalent in Lithuania, as well as Illumina Core Exome chip for SNP detection. We genotyped 270 SPT-positive individuals (137 Betulaceae -, 174 Poaceae-, 199 Artemisia-, 70 Helianthus-, 22 Alternaria-, 22 Cladosporium-, 140 mites-, 95 cat- and 97 dog dander-sensitive cases) and 162 SPT-negative controls. We found altogether 13 known SNPs associated with AS (p ≤0.05). Three SNPs were found in Lithuanians sensitive to several allergens, and 10 SNPs were found in Lithuanians sensitive to a certain allergen. For the first time, SNP rs7775228:C was associated with patient sensitivity to dog allergens (F_A=0,269, F_U=0.180, P=0.008). Thus, careful assessment of AS allowed us to detect known genetic variants associated with AS/AR in relatively small cohort of Lithuanians.
Collapse
Affiliation(s)
- Ingrida Šaulienė
- Deptartment of Environmental Research, Siauliai University, Siauliai, Lithuania
| | - Jūratė Greičiuvienė
- Deptartment of Environmental Research, Siauliai University, Siauliai, Lithuania
| | - Laura Šukienė
- Deptartment of Environmental Research, Siauliai University, Siauliai, Lithuania
| | | | - Christian Benner
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Auksė Zinkevičienė
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Samuli Ripatti
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
- Public Health, University of Helsinki, Helsinki, Finland
- Wellcome Trust Sanger Institute, Hinxton, United Kingdom
| | - Kati Donner
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Denis Kainov
- Deptartment of Environmental Research, Siauliai University, Siauliai, Lithuania
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
- * E-mail:
| |
Collapse
|
20
|
Lastauskienė E, Zinkevičienė A, Girkontaitė I, Kaunietis A, Kvedarienė V. Formic acid and acetic acid induce a programmed cell death in pathogenic Candida species. Curr Microbiol 2014; 69:303-10. [PMID: 24752490 DOI: 10.1007/s00284-014-0585-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 02/24/2014] [Indexed: 11/29/2022]
Abstract
Cutaneous fungal infections are common and widespread. Antifungal agents used for the treatment of these infections often have undesirable side effects. Furthermore, increased resistance of the microorganisms to the antifungal drugs becomes the growing problem. Accordingly, the search for natural antifungal compounds continues to receive attention. Apoptosis is highly regulated programmed cell death. During yeast cell apoptosis, amino acids and peptides are released and can stimulate regeneration of human epithelium cells. Thus, detection of chemical compounds inducing apoptosis in yeast and nontoxic for humans is of great medical relevance. The aim of this study was to detect chemical compound inducing apoptosis in pathogenic Candida species with the lowest toxicity to the mammalian cells. Five chemical compounds--acetic acid, sodium bicarbonate, potassium carbonate, lithium acetate, and formic acid--were tested for evaluation of antifungal activity on C. albicans, C. guilliermondii, and C. lusitaniae. The results showed that acetic acid and formic acid at the lowest concentrations induced yeast cells death. Apoptosis analysis revealed that cells death was accompanied by activation of caspase. Minimal inhibitory concentrations of potassium carbonate and sodium bicarbonate induced Candida cells necrosis. Toxicity test with mammalian cell cultures showed that formic acid has the lowest effect on the growth of Jurkat and NIH 3T3 cells. In conclusion, our results show that a low concentration of formic acid induces apoptosis-like programmed cell death in the Candida yeast and has a minimal effect on the survivability of mammalian cells, suggesting potential applications in the treatment of these infections.
Collapse
Affiliation(s)
- Eglė Lastauskienė
- Department of Microbiology and Biotechnology, Faculty of Natural Sciences, Vilnius University, M.K. Čiurlionio str. 21/27, LT-03101, Vilnius, Lithuania
| | | | | | | | | |
Collapse
|
21
|
Lastauskienė E, Zinkevičienė A, Čitavičius D. Ras/PKA signal transduction pathway participates in the regulation of Saccharomyces cerevisiae cell apoptosis in an acidic environment. Biotechnol Appl Biochem 2013; 61:3-10. [PMID: 24267639 DOI: 10.1002/bab.1183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 11/12/2013] [Indexed: 11/09/2022]
Abstract
The acidification of the medium is observed during yeast cell growth. This process contributes to the emission of organic acids, mainly acetic acid. Acetic acid is known as the inducer of apoptosis in the yeast Saccharomyces cerevisiae. In this study, we showed that hydrochloric acid can also induce apoptosis in yeast cells, and the apoptotic phenotype triggered by treating yeast cells with hydrochloric acid is modulated by the Ras/PKA pathway. The Ras/PKA pathway is highly conserved between all eukaryotic organisms, as well as cell processes that are related to apoptosis and aging. In this research, we demonstrated that the activation of the Ras/PKA pathway by insertion of Ras2(Val19) allele or deletion of PDE2 gene increases cell death, displaying the markers of apoptosis in an acidic environment. Downregulation of the pathway by deletion of RAS2, RAS1, PDE1, and insertion of the Ha-ras gene increases the cell viability and diminishes cell death with the apoptotic phenotypes. The deletion of PDE1 gene and double deletion of both phosphodiesterase genes prevent the induction of apoptosis in the cells. Modulations in the Ras/PKA pathway affect cell viability and apoptosis during natural gradual acidification of the medium as well as in acid stress conditions.
Collapse
Affiliation(s)
- Eglė Lastauskienė
- Department of Microbiology and Biotechnology, Faculty of Natural Sciences, Vilnius University, Vilnius, Lithuania
| | | | | |
Collapse
|