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Vaňková E, Julák J, Machková A, Obrová K, Klančnik A, Možina SS, Scholtz V. Overcoming antibiotic resistance: non-thermal plasma and antibiotics combination inhibit important pathogens. Pathog Dis 2024:ftae007. [PMID: 38730561 DOI: 10.1093/femspd/ftae007] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2024] Open
Abstract
Antibiotic resistance (ATBR) is increasing every year as the overuse of antibiotics (ATB) and the lack of newly emerging antimicrobial agents lead to an efficient pathogen escape from ATB action. This trend is alarming and the World Health Organization warned in 2021 that ATBR could become the leading cause of death worldwide by 2050. The development of novel ATB is not fast enough considering the situation, and alternative strategies are therefore urgently requested. One such alternative may be the use of non-thermal plasma (NTP), a well-established antimicrobial agent actively used in a growing number of medical fields. Despite its efficiency, NTP alone is not always sufficient to completely eliminate pathogens. However, NTP combined with ATB is more potent and evidence has been emerging over the last few years proving this a robust and highly effective strategy to fight resistant pathogens. This minireview summarizes experimental research addressing the potential of NTP-ATB combination, particularly for inhibiting planktonic and biofilm growth and treating infections in mouse models caused by methicillin-resistant Staphylococcus aureus or Pseudomonas aeruginosa. The published studies highlight this combination as a promising solution to emerging ATBR, and further research is therefore highly desirable.
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Affiliation(s)
- E Vaňková
- Department of Physics and Measurements, University of Chemistry and Technology in Prague, Prague, Czech Republic
- Department of Biotechnology, University of Chemistry and Technology in Prague, Prague, Czech Republic
| | - J Julák
- Department of Physics and Measurements, University of Chemistry and Technology in Prague, Prague, Czech Republic
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - A Machková
- Department of Physics and Measurements, University of Chemistry and Technology in Prague, Prague, Czech Republic
| | - K Obrová
- Department of Physics and Measurements, University of Chemistry and Technology in Prague, Prague, Czech Republic
| | - A Klančnik
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - S Smole Možina
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - V Scholtz
- Department of Physics and Measurements, University of Chemistry and Technology in Prague, Prague, Czech Republic
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Schultze-Rhonhof L, Marzi J, Carvajal Berrio DA, Holl M, Braun T, Schäfer-Ruoff F, Andress J, Bachmann C, Templin M, Brucker SY, Schenke-Layland K, Weiss M. Human tissue-resident peritoneal macrophages reveal resistance towards oxidative cell stress induced by non-invasive physical plasma. Front Immunol 2024; 15:1357340. [PMID: 38504975 PMCID: PMC10949891 DOI: 10.3389/fimmu.2024.1357340] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 02/14/2024] [Indexed: 03/21/2024] Open
Abstract
In the context of multimodal treatments for abdominal cancer, including procedures such as cytoreductive surgery and intraperitoneal chemotherapy, recurrence rates remain high, and long-term survival benefits are uncertain due to post-operative complications. Notably, treatment-limiting side effects often arise from an uncontrolled activation of the immune system, particularly peritoneally localized macrophages, leading to massive cytokine secretion and phenotype changes. Exploring alternatives, an increasing number of studies investigated the potential of plasma-activated liquids (PAL) for adjuvant peritoneal cancer treatment, aiming to mitigate side effects, preserve healthy tissue, and reduce cytotoxicity towards non-cancer cells. To assess the non-toxicity of PAL, we isolated primary human macrophages from the peritoneum and subjected them to PAL exposure. Employing an extensive methodological spectrum, including flow cytometry, Raman microspectroscopy, and DigiWest protein analysis, we observed a pronounced resistance of macrophages towards PAL. This resistance was characterized by an upregulation of proliferation and anti-oxidative pathways, countering PAL-derived oxidative stress-induced cell death. The observed cellular effects of PAL treatment on human tissue-resident peritoneal macrophages unveil a potential avenue for PAL-derived immunomodulatory effects within the human peritoneal cavity. Our findings contribute to understanding the intricate interplay between PAL and macrophages, shedding light on the promising prospects for PAL in the adjuvant treatment of peritoneal cancer.
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Affiliation(s)
| | - Julia Marzi
- Institute of Biomedical Engineering, Department for Medical Technologies and Regenerative Medicine, University of Tübingen, Tübingen, Germany
- Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany
| | - Daniel Alejandro Carvajal Berrio
- Institute of Biomedical Engineering, Department for Medical Technologies and Regenerative Medicine, University of Tübingen, Tübingen, Germany
| | - Myriam Holl
- Department of Women’s Health Tübingen, University of Tübingen, Tübingen, Germany
| | - Theresa Braun
- Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany
- University Development, Research and Transfer, University of Konstanz, Konstanz, Germany
| | - Felix Schäfer-Ruoff
- Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany
| | - Jürgen Andress
- Department of Women’s Health Tübingen, University of Tübingen, Tübingen, Germany
| | - Cornelia Bachmann
- Department of Women’s Health Tübingen, University of Tübingen, Tübingen, Germany
| | - Markus Templin
- Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany
| | - Sara Y. Brucker
- Department of Women’s Health Tübingen, University of Tübingen, Tübingen, Germany
| | - Katja Schenke-Layland
- Institute of Biomedical Engineering, Department for Medical Technologies and Regenerative Medicine, University of Tübingen, Tübingen, Germany
- Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany
| | - Martin Weiss
- Department of Women’s Health Tübingen, University of Tübingen, Tübingen, Germany
- Natural and Medical Sciences Institute (NMI) at the University of Tübingen, Reutlingen, Germany
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Kniazeva V, Tzerkovsky D, Baysal Ö, Kornev A, Roslyakov E, Kostevitch S. Adjuvant composite cold atmospheric plasma therapy increases antitumoral effect of doxorubicin hydrochloride. Front Oncol 2023; 13:1171042. [PMID: 37409254 PMCID: PMC10318895 DOI: 10.3389/fonc.2023.1171042] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/05/2023] [Indexed: 07/07/2023] Open
Abstract
Introduction Cancer is a global health concern, with a significant impact on mortality rates. Despite advancements in targeted antitumor drugs, the development of new therapies remains challenging due to high costs and tumor resistance. The exploration of novel treatment approaches, such as combined chemotherapy, holds promise for improving the effectiveness of existing antitumor agents. Cold atmospheric plasma has demonstrated antineoplastic effects in preclinical studies, but its potential in combination with specific ions for lymphosarcoma treatment has not been investigated. Methods An in vivo study was conducted using a Pliss lymphosarcoma rat model to evaluate the antitumor effects of composite cold plasma and controlled ionic therapy. Groups of rats were exposed to composite cold plasma for 3, 7, and 14 days, while the control group received no treatment. Additionally, a combination of chemotherapy with cold plasma therapy was assessed, with doxorubicin hydrochloride administered at a dosage of 5 mg/kg. PERENIO IONIC SHIELD™ emitted a controlled ionic formula during the treatment period. Results The in vivo study demonstrated tumor growth inhibition in groups exposed to composite cold plasma for 3, 7, and 14 days compared to the control group. Furthermore, combining chemotherapy with cold plasma therapy resulted in a threefold reduction in tumor volume. The most significant antitumor effects were observed when doxorubicin hydrochloride at a dosage of 5 mg/kg was combined with 14 days of PERENIO IONIC SHIELD™ ionic therapy. Discussion The use of composite cold plasma therapy, in conjunction with a controlled ionic formula emitted by PERENIO IONIC SHIELD™, in the complex treatment of lymphosarcoma in rats showed promising antitumor effects. The combination therapy, particularly when combined with doxorubicin hydrochloride, demonstrated enhanced efficacy. These findings suggest the potential for utilizing cold atmospheric plasma and controlled ions as an adjunctive treatment approach in lymphosarcoma therapy. Further research is warranted to explore the mechanisms underlying these effects and to evaluate the safety and efficacy in human clinical trials.
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Affiliation(s)
- Volha Kniazeva
- Bioresearch Department, R. S. C. Real Scientists Cyprus Ltd., Limassol, Cyprus
| | - Dzmitry Tzerkovsky
- Laboratory of Morphology, Molecular and Cellular Biology with a Group of Experimental Medicine, N. N. Alexandrov National Cancer Center of Belarus, Lesnoy, Belarus
| | - Ömür Baysal
- Faculty of Science, Department of Molecular Biology and Genetics, Molecular Microbiology Unit, Muğla Sıtkı Koçman University, Kötekli, Türkiye
| | - Alexander Kornev
- Bioresearch Department, R. S. C. Real Scientists Cyprus Ltd., Limassol, Cyprus
| | - Evgeny Roslyakov
- Bioresearch Department, R. S. C. Real Scientists Cyprus Ltd., Limassol, Cyprus
| | - Serhei Kostevitch
- Bioresearch Department, R. S. C. Real Scientists Cyprus Ltd., Limassol, Cyprus
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Zhao W, Jing X, Wang T, Zhang F. Glutamine Deprivation Synergizes the Anticancer Effects of Cold Atmospheric Plasma on Esophageal Cancer Cells. Molecules 2023; 28:molecules28031461. [PMID: 36771124 PMCID: PMC9919221 DOI: 10.3390/molecules28031461] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Esophageal cancer is a highly aggressive malignancy with a low response to standard anti-cancer therapies. There is an unmet need to develop new therapeutic strategies to improve the clinical outcomes of current treatments. Cold atmospheric plasma (CAP) is a promising approach for cancer treatment, and has displayed anticancer efficacy in multiple preclinical models. Recent studies have shown that the efficacy of CAP is positively correlated with intracellular reactive oxygen species (ROS) levels. This suggests that aggressively increasing intracellular ROS levels has the potential to further improve CAP-mediated anticancer efficacy. Glutamine plays an important role in cellular ROS scavenging after being converted to glutathione (GSH, a well-described antioxidant) under physiological conditions, so reducing intracellular glutamine levels seems to be a promising strategy. To test this hypothesis, we treated esophageal cancer cells with CAP while controlling the supply of glutamine. The results showed that glutamine did affect the anticancer effect of CAP, and the combination of CAP stimulation and glutamine deprivation significantly inhibited the proliferation of esophageal cancer cells compared to the control group (p < 0.05). Furthermore, flow cytometric analysis documented a significant increase in more than 10% in apoptosis and necrosis of esophageal cancer cells after this synergistic treatment compared to the control group (p < 0.05). Thus, these results provide the first direct evidence that the biological function of CAP can be modulated by glutamine levels and that combined CAP stimulation and glutamine deprivation represent a promising strategy for the future treatment of esophageal cancer.
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Affiliation(s)
- Wei Zhao
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Xumiao Jing
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Tao Wang
- College of Nursing and Health, Zhengzhou University, Zhengzhou 450001, China
- Telethon Kids Institute, Perth, WA 6872, Australia
- School of Medicine, University of Western Australia, Perth, WA 6872, Australia
- Correspondence: (T.W.); (F.Z.)
| | - Fengqiu Zhang
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
- Correspondence: (T.W.); (F.Z.)
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Chupradit S, Widjaja G, Radhi Majeed B, Kuznetsova M, Ansari MJ, Suksatan W, Turki Jalil A, Ghazi Esfahani B. Recent advances in cold atmospheric plasma (CAP) for breast cancer therapy. Cell Biol Int 2023; 47:327-340. [PMID: 36342241 DOI: 10.1002/cbin.11939] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 05/10/2022] [Revised: 08/29/2022] [Accepted: 10/11/2022] [Indexed: 11/09/2022]
Abstract
The serious problems of conventional breast cancer therapy strategies such as drug resistance, severe side effects, and lack of selectivity prompted the development of various cold atmospheric plasma (CAP) devices. Due to its advanced technology, CAP can produce a unique environment rich in reactive oxygen and nitrogen species (RONS), photons, charged ions, and an electric field, making it a promising revolutionary platform for cancer therapy. Despite substantial technological successes, CAP-based therapeutic systems are encounter with distinct limitations, including low control of the generated RONS, poor knowledge about its anticancer mechanisms, and challenges concerning designing, manufacturing, clinical translation, and commercialization, which must be resolved. The latest developments in CAP-based therapeutic systems for breast cancer treatment are discussed in this review. More significantly, the integration of CAP-based medicine approaches with other breast cancer therapies, including chemo- and nanotherapy is thoroughly addressed.
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Affiliation(s)
- Supat Chupradit
- Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Suthep, Chiang Mai, Thailand
| | - Gunawan Widjaja
- Universitas Krisnadwipayana, Universitas Indonesia, Jakarta, Indonesia
| | | | - Maria Kuznetsova
- Department of Propaedeutics of Dental Diseases, I.M. Sechenov First Moscow State Medical University, Moskva, Russia
| | - Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-kharj, Saudi Arabia
| | - Wanich Suksatan
- HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Faculty of Nursing, Bangkok, Thailand
| | - Abduladheem Turki Jalil
- Faculty of Biology and Ecology, Yanka Kupala State University of Grodno, Grodno, Belarus.,College of Technical Engineering, The Islamic University, Najaf, Iraq.,Department of Dentistry, Kut University College, Kut, Wasit, Iraq
| | - Bahar Ghazi Esfahani
- Department of Biological Sciences and Technologies, University of Isfahan, Iran, Isfahan
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Feibel D, Kwiatkowski A, Opländer C, Grieb G, Windolf J, Suschek CV. Enrichment of Bone Tissue with Antibacterially Effective Amounts of Nitric Oxide Derivatives by Treatment with Dielectric Barrier Discharge Plasmas Optimized for Nitrogen Oxide Chemistry. Biomedicines 2023; 11:biomedicines11020244. [PMID: 36830781 PMCID: PMC9953554 DOI: 10.3390/biomedicines11020244] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
Cold atmospheric plasmas (CAPs) generated by dielectric barrier discharge (DBD), particularly those containing higher amounts of nitric oxide (NO) or NO derivates (NOD), are attracting increasing interest in medical fields. In the present study, we, for the first time, evaluated DBD-CAP-induced NOD accumulation and therapeutically relevant NO release in calcified bone tissue. This knowledge is of great importance for the development of new therapies against bacterial-infectious complications during bone healing, such as osteitis or osteomyelitis. We found that by modulating the power dissipation in the discharge, it is possible (1) to significantly increase the uptake of NODs in bone tissue, even into deeper regions, (2) to significantly decrease the pH in CAP-exposed bone tissue, (3) to induce a long-lasting and modulable NO production in the bone samples as well as (4) to significantly protect the treated bone tissue against bacterial contaminations, and to induce a strong bactericidal effect in bacterially infected bone samples. Our results strongly suggest that the current DBD technology opens up effective NO-based therapy options in the treatment of local bacterial infections of the bone tissue through the possibility of a targeted modulation of the NOD content in the generated CAPs.
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Affiliation(s)
- Dennis Feibel
- Department for Orthopedics and Trauma Surgery, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Alexander Kwiatkowski
- Department for Orthopedics and Trauma Surgery, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Christian Opländer
- Institute for Research in Operative Medicine (IFOM), Cologne-Merheim Medical Center, University Witten/Herdecke, 58455 Witten-Herdecke, Germany
| | - Gerrit Grieb
- Department of Plastic Surgery and Hand Surgery, Burn Centre, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany
| | - Joachim Windolf
- Department for Orthopedics and Trauma Surgery, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Christoph V. Suschek
- Department for Orthopedics and Trauma Surgery, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
- Correspondence:
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Foligni R, Mannozzi C, Ismaiel L, Capelli F, Laurita R, Tappi S, Dalla Rosa M, Mozzon M. Impact of Cold Atmospheric Plasma (CAP) Treatments on the Oxidation of Pistachio Kernel Lipids. Foods 2022; 11:foods11030419. [PMID: 35159569 PMCID: PMC8834114 DOI: 10.3390/foods11030419] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 12/31/2021] [Revised: 01/18/2022] [Accepted: 01/22/2022] [Indexed: 02/04/2023] Open
Abstract
Cold atmospheric plasma (CAP) is a non-thermal technology that could be applied for food decontamination from both biological (microorganisms) and chemical (pesticides, food allergens, mycotoxins) contaminants, thanks to the production of reactive species (RS). However, RS could also promote the onset and the progress of food lipid oxidation, which may limit the quality and acceptability of the final products. The aim of this work was to assess the oxidation degree of pistachio kernels after treatment in a surface dielectric barrier discharge (SDBD). Two different operative conditions for CAP generation were investigated, resulting in the production of high (800 ppm) or low (300 ppm) concentrations of ozone. Limited amounts of hydroperoxides (3.00–4.22 mEq O2/kg), thiobarbituric acid reactive substances (TBARS, 0.072–0.600 mg TEP/g oil), and phytosterol oxidation products (POPs, 14.43–17.20 μg/g) were observed in lipids of both control and plasma processed pistachios. Plasma treatments did not significantly affect the total fatty acid composition and the amounts of identified unsaponifiable matter constituents (4-desmethylsterols, 4,4-dimethylsterols, 4-methylsterols), except for an unexpected significant increase of γ-tocopherol content in extracted oils. These findings contribute to gaining further knowledge for the scale-up of CAP technology to industrial processing.
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Affiliation(s)
- Roberta Foligni
- Department of Agricultural, Food and Environmental Sciences (D3A), Università Politecnica delle Marche, Via Brecce Bianche 10, 60131 Ancona, Italy; (R.F.); (L.I.)
| | - Cinzia Mannozzi
- Department of Agricultural, Food and Environmental Sciences (D3A), Università Politecnica delle Marche, Via Brecce Bianche 10, 60131 Ancona, Italy; (R.F.); (L.I.)
- Correspondence: (C.M.); (M.M.); Tel.: +39-071-2204010 (C.M.); Tel.: +39-071-2204926 (M.M.)
| | - Lama Ismaiel
- Department of Agricultural, Food and Environmental Sciences (D3A), Università Politecnica delle Marche, Via Brecce Bianche 10, 60131 Ancona, Italy; (R.F.); (L.I.)
| | - Filippo Capelli
- Department of Industrial Engineering (DIN), University of Bologna, Via Terracini 24, 40131 Bologna, Italy; (F.C.); (R.L.)
- AlmaPlasma s.r.l., Viale G. Fanin 48, 40127 Bologna, Italy
| | - Romolo Laurita
- Department of Industrial Engineering (DIN), University of Bologna, Via Terracini 24, 40131 Bologna, Italy; (F.C.); (R.L.)
- Interdepartmental Centre for Industrial Research Health Sciences and Technologies, Alma Mater Studiorum-University of Bologna, Via Zamboni 33, 40136 Bologna, Italy
| | - Silvia Tappi
- Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (S.T.); (M.D.R.)
- Interdepartmental Centre for Industrial Agrofood Research (CIRI Agrofood), University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
| | - Marco Dalla Rosa
- Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy; (S.T.); (M.D.R.)
- Interdepartmental Centre for Industrial Agrofood Research (CIRI Agrofood), University of Bologna, Via Quinto Bucci 336, 47521 Cesena, Italy
| | - Massimo Mozzon
- Department of Agricultural, Food and Environmental Sciences (D3A), Università Politecnica delle Marche, Via Brecce Bianche 10, 60131 Ancona, Italy; (R.F.); (L.I.)
- Correspondence: (C.M.); (M.M.); Tel.: +39-071-2204010 (C.M.); Tel.: +39-071-2204926 (M.M.)
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Wang P, Zhou R, Zhou R, Li W, Weerasinghe J, Chen S, Rehm BHA, Zhao L, Frentiu FD, Zhang Z, Yan K, Lor M, Suhrbier A, Richard DJ, Thompson EW, Ostrikov KK, Dai X. Cold atmospheric plasma for preventing infection of viruses that use ACE2 for entry. Theranostics 2022; 12:2811-2832. [PMID: 35401827 PMCID: PMC8965494 DOI: 10.7150/thno.70098] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/17/2022] [Indexed: 11/05/2022] Open
Abstract
Rational: The mutating SARS-CoV-2 potentially impairs the efficacy of current vaccines or antibody-based treatments. Broad-spectrum and rapid anti-virus methods feasible for regular epidemic prevention against COVID-19 or alike are urgently called for. Methods: Using SARS-CoV-2 virus and bioengineered pseudoviruses carrying ACE2-binding spike protein domains, we examined the efficacy of cold atmospheric plasma (CAP) on virus entry prevention. Results: We found that CAP could effectively inhibit the entry of virus into cells. Direct CAP or CAP-activated medium (PAM) triggered rapid internalization and nuclear translocation of the virus receptor, ACE2, which began to return after 5 hours and was fully recovered by 12 hours. This was seen in vitro with both VERO-E6 cells and human mammary epithelial MCF10A cells, and in vivo. Hydroxyl radical (·OH) and species derived from its interactions with other species were found to be the most effective CAP components for triggering ACE2 nucleus translocation. The ERα/STAT3(Tyr705) and EGFR(Tyr1068/1086)/STAT3(Tyr705) axes were found to interact and collectively mediate the effects on ACE2 localization and expression. Conclusions: Our data support the use of PAM in helping control SARS-CoV-2 if developed into products for nose/mouth spray; an approach extendable to other viruses utilizing ACE2 for host entry.
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Arndt S, Fadil F, Dettmer K, Unger P, Boskovic M, Samol C, Bosserhoff AK, Zimmermann JL, Gruber M, Gronwald W, Karrer S. Cold Atmospheric Plasma Changes the Amino Acid Composition of Solutions and Influences the Anti-Tumor Effect on Melanoma Cells. Int J Mol Sci 2021; 22:7886. [PMID: 34360651 DOI: 10.3390/ijms22157886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/09/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
Cold Atmospheric Plasma (CAP) is an ionized gas near room temperature. Its anti-tumor effect can be transmitted either by direct treatment or mediated by a plasma-treated solution (PTS), such as treated standard cell culture medium, which contains different amino acids, inorganic salts, vitamins and other substances. Despite extensive research, the active components in PTS and its molecular or cellular mechanisms are not yet fully understood. The purpose of this study was the measurement of the reactive species in PTS and their effect on tumor cells using different plasma modes and treatment durations. The PTS analysis yielded mode- and dose-dependent differences in the production of reactive oxygen and nitrogen species (RONS), and in the decomposition and modification of the amino acids Tyrosine (Tyr) and Tryptophan (Trp). The Trp metabolites Formylkynurenine (FKyn) and Kynurenine (Kyn) were produced in PTS with the 4 kHz (oxygen) mode, inducing apoptosis in Mel Im melanoma cells. Nitrated derivatives of Trp and Tyr were formed in the 8 kHz (nitrogen) mode, elevating the p16 mRNA expression and senescence-associated ß-Galactosidase staining. In conclusion, the plasma mode has a strong impact on the composition of the active components in PTS and affects its anti-tumor mechanism. These findings are of decisive importance for the development of plasma devices and the effectiveness of tumor treatment.
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Wang P, Zhou R, Thomas P, Zhao L, Zhou R, Mandal S, Jolly MK, Richard DJ, Rehm BHA, Ostrikov K(K, Dai X, Williams ED, Thompson EW. Epithelial-to-Mesenchymal Transition Enhances Cancer Cell Sensitivity to Cytotoxic Effects of Cold Atmospheric Plasmas in Breast and Bladder Cancer Systems. Cancers (Basel) 2021; 13:2889. [PMID: 34207708 PMCID: PMC8226878 DOI: 10.3390/cancers13122889] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/26/2021] [Accepted: 05/29/2021] [Indexed: 12/14/2022] Open
Abstract
Cold atmospheric plasma (CAP) has emerged as a highly selective anticancer agent, most recently in the form of plasma-activated medium (PAM). Since epithelial-mesenchymal transition (EMT) has been implicated in resistance to various cancer therapies, we assessed whether EMT status is associated with PAM response. Mesenchymal breast cancer cell lines, as well as the mesenchymal variant in an isogenic EMT/MET human breast cancer cell system (PMC42-ET/LA), were more sensitive to PAM treatment than their epithelial counterparts, contrary to their responses to other therapies. The same trend was seen in luminal muscle-invasive bladder cancer model (TSU-Pr1/B1/B2) and the non-muscle-invasive basal 5637 bladder cancer cell line. Three-dimensional spheroid cultures of the bladder cancer cell lines were less sensitive to the PAM treatment compared to their two-dimensional counterparts; however, incrementally better responses were again seen in more mesenchymally-shifted cell lines. This study provides evidence that PAM preferentially inhibits mesenchymally-shifted carcinoma cells, which have been associated with resistance to other therapies. Thus, PAM may represent a novel treatment that can selectively inhibit triple-negative breast cancers and a subset of aggressive bladder cancers, which tend to be more mesenchymal. Our approach may potentially be utilized for other aggressive cancers exhibiting EMT and opens new opportunities for CAP and PAM as a promising new onco-therapy.
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Affiliation(s)
- Peiyu Wang
- Queensland University of Technology (QUT), School of Biomedical Sciences, Brisbane 4059, Australia; (P.W.); (P.T.)
- Translational Research Institute, Woolloongabba, Queensland 4102, Australia
| | - Renwu Zhou
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, Australia; (R.Z.)
| | - Patrick Thomas
- Queensland University of Technology (QUT), School of Biomedical Sciences, Brisbane 4059, Australia; (P.W.); (P.T.)
- Translational Research Institute, Woolloongabba, Queensland 4102, Australia
- Queensland Bladder Cancer Initiative (QBCI), Woolloongabba, Queensland 4102, Australia
| | - Liqian Zhao
- The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Rusen Zhou
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, Australia; (R.Z.)
| | - Susmita Mandal
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Mohit Kumar Jolly
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Derek J. Richard
- Queensland University of Technology (QUT), School of Biomedical Sciences, Brisbane 4059, Australia; (P.W.); (P.T.)
- Translational Research Institute, Woolloongabba, Queensland 4102, Australia
| | - Bernd H. A. Rehm
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Kostya (Ken) Ostrikov
- School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Australia
| | - Xiaofeng Dai
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Elizabeth D. Williams
- Queensland University of Technology (QUT), School of Biomedical Sciences, Brisbane 4059, Australia; (P.W.); (P.T.)
- Translational Research Institute, Woolloongabba, Queensland 4102, Australia
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, Australia; (R.Z.)
| | - Erik W. Thompson
- Queensland University of Technology (QUT), School of Biomedical Sciences, Brisbane 4059, Australia; (P.W.); (P.T.)
- Translational Research Institute, Woolloongabba, Queensland 4102, Australia
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11
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Jagau H, Packirisamy S, Brandon K, Herwald H. Plasma Protein Layer Concealment Protects Streptococcus pyogenes From Innate Immune Attack. Front Cell Infect Microbiol 2021; 11:633394. [PMID: 34094995 PMCID: PMC8173628 DOI: 10.3389/fcimb.2021.633394] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/04/2021] [Indexed: 11/13/2022] Open
Abstract
Early recognition and elimination of invading pathogens by the innate immune system, is one of the most efficient host defense mechanisms preventing the induction of systemic complications from infection. To this end the host can mobilize endogenous antimicrobials capable of killing the intruder by perforating the microbial cell wall. Here, we show that Streptococcus pyogenes can shield its outer surface with a layer of plasma proteins. This mechanism protects the bacteria from an otherwise lytic attack by LL-37 and extracellular histones, allowing the bacteria to adjust their gene regulation to an otherwise hostile environment.
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Affiliation(s)
- Hilger Jagau
- Division of Infection Medicine, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
| | - Swathi Packirisamy
- Division of Infection Medicine, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
| | - Kyle Brandon
- Division of Infection Medicine, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden.,UCD School of Medicine, University College Dublin, Dublin, Ireland
| | - Heiko Herwald
- Division of Infection Medicine, Department of Clinical Sciences, Lund, Lund University, Lund, Sweden
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12
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Motaln H, Recek N, Rogelj B. Intracellular Responses Triggered by Cold Atmospheric Plasma and Plasma-Activated Media in Cancer Cells. Molecules 2021; 26:1336. [PMID: 33801451 DOI: 10.3390/molecules26051336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 02/07/2023] Open
Abstract
Cold atmospheric plasma (CAP), an ionized gas operating at room temperature, has been increasingly studied with respect to its potential use in medicine, where its beneficial effects on tumor reduction in oncology have been demonstrated. This review discusses the cellular changes appearing in cell membranes, cytoplasm, various organelles, and DNA content upon cells’ direct or indirect exposure to CAP or CAP-activated media/solutions (PAM), respectively. In addition, the CAP/PAM impact on the main cellular processes of proliferation, migration, protein degradation and various forms of cell death is addressed, especially in light of CAP use in the oncology field of plasma medicine.
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13
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Feil L, Koch A, Utz R, Ackermann M, Barz J, Stope M, Krämer B, Wallwiener D, Brucker SY, Weiss M. Cancer-Selective Treatment of Cancerous and Non-Cancerous Human Cervical Cell Models by a Non-Thermally Operated Electrosurgical Argon Plasma Device. Cancers (Basel) 2020; 12:E1037. [PMID: 32340164 DOI: 10.3390/cancers12041037] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/17/2020] [Accepted: 04/19/2020] [Indexed: 12/14/2022] Open
Abstract
Cold atmospheric plasma (CAP) treatment is developing as a promising option for local anti-neoplastic treatment of dysplastic lesions and early intraepithelial cancer. Currently, high-frequency electrosurgical argon plasma sources are available and well established for clinical use. In this study, we investigated the effects of treatment with a non-thermally operated electrosurgical argon plasma source, a Martin Argon Plasma Beamer System (MABS), on cell proliferation and metabolism of a tissue panel of human cervical cancer cell lines as well as on non-cancerous primary cells of the cervix uteri. Similar to conventional CAP sources, we were able to show that MABS was capable of causing antiproliferative and cytotoxic effects on cervical squamous cell and adenocarcinoma as well as on non-neoplastic cervical tissue cells due to the generation of reactive species. Notably, neoplastic cells were more sensitive to the MABS treatment, suggesting a promising new and non-invasive application for in vivo treatment of precancerous and cancerous cervical lesions with non-thermally operated electrosurgical argon plasma sources.
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14
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VON Woedtke T, Schmidt A, Bekeschus S, Wende K, Weltmann KD. Plasma Medicine: A Field of Applied Redox Biology. In Vivo 2019; 33:1011-1026. [PMID: 31280189 DOI: 10.21873/invivo.11570] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [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: 03/07/2019] [Revised: 04/18/2019] [Accepted: 04/24/2019] [Indexed: 12/25/2022]
Abstract
Plasma medicine comprises the application of physical plasma directly on or in the human body for therapeutic purposes. Three most important basic plasma effects are relevant for medical applications: i) inactivation of a broad spectrum of microorganisms, including multidrug-resistant pathogens, ii) stimulation of cell proliferation and angiogenesis with lower plasma treatment intensity, and iii) inactivation of cells by initialization of cell death with higher plasma treatment intensity, above all in cancer cells. Based on own published results as well as on monitoring of relevant literature the aim of this topical review is to summarize the state of the art in plasma medicine and connect it to redox biology. One of the most important results of basic research in plasma medicine is the insight that biological plasma effects are mainly mediated via reactive oxygen and nitrogen species influencing cellular redox-regulated processes. Plasma medicine can be considered a field of applied redox biology.
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Affiliation(s)
- Thomas VON Woedtke
- Leibniz Institute for Plasma Science and Technology, INP Greifswald, Greifswald, Germany .,Greifswald University Medicine, Greifswald, Germany
| | - Anke Schmidt
- Leibniz Institute for Plasma Science and Technology, INP Greifswald, Greifswald, Germany
| | | | | | - Klaus-Dieter Weltmann
- Leibniz Institute for Plasma Science and Technology, INP Greifswald, Greifswald, Germany
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15
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Wenzel T, Carvajal Berrio DA, Daum R, Reisenauer C, Weltmann KD, Wallwiener D, Brucker SY, Schenke-Layland K, Brauchle EM, Weiss M. Molecular Effects and Tissue Penetration Depth of Physical Plasma in Human Mucosa Analyzed by Contact- and Marker-Independent Raman Microspectroscopy. ACS Appl Mater Interfaces 2019; 11:42885-42895. [PMID: 31657892 DOI: 10.1021/acsami.9b13221] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Noninvasive epithelial tissue treatment with cold atmospheric plasma (CAP) is a promising option for local treatment of chronic inflammatory and precancerous lesions as well as various mucosal cancer diseases. Atmospheric pressure plasma jets (APPJ) are well-characterized and medically approved plasma sources. There are numbers of medically approved plasma sources for the treatment of epithelial diseases; however, little is known about the biochemical effects of CAP at the plasma-tissue interface. Furthermore, the actual penetration depth of CAP into tissue is currently unclear. Noninvasive and marker-independent Raman microspectroscopy was employed to assess the molecular effects of CAP on single cells and primary human cervical tissue samples. CAP treatment showed immediate and persisting changes of specific molecular tissue components determined by multivariate analysis. Raman imaging identified CAP-dependent changes in the morphology of the tissue, as well as molecular tissue components. The expression of the different components was not significantly altered within 24 h of incubation. DNA and lipids showed the strongest changes upon CAP treatment, which were traced to the basal cell layer of cervical epithelium, corresponding to an average functional plasma penetration depth of roughly 270 μm. In this study, Raman microspectroscopy is shown to be a promising method for molecular single-cell and solid tissue characterization. Regarding CAP treatment of tissues, Raman microspectroscopy could be suitable for the screening of biological mechanisms as well as for future contact- and marker-independent monitoring of plasma tissue effects.
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Affiliation(s)
- Thomas Wenzel
- Department of Women's Health Tübingen , Calwerstraße 7 , 72076 Tübingen , Germany
| | | | - Ruben Daum
- Natural and Medical Sciences Institute (NMI) , Reutlingen , Germany
| | - Christl Reisenauer
- Department of Women's Health Tübingen , Calwerstraße 7 , 72076 Tübingen , Germany
| | | | - Diethelm Wallwiener
- Department of Women's Health Tübingen , Calwerstraße 7 , 72076 Tübingen , Germany
| | - Sara Y Brucker
- Department of Women's Health Tübingen , Calwerstraße 7 , 72076 Tübingen , Germany
| | - Katja Schenke-Layland
- Department of Women's Health Tübingen , Calwerstraße 7 , 72076 Tübingen , Germany
- Natural and Medical Sciences Institute (NMI) , Reutlingen , Germany
- Department of Medicine/Cardiology , University of California Los Angeles (UCLA) , Los Angeles , United States
| | - Eva-Maria Brauchle
- Department of Women's Health Tübingen , Calwerstraße 7 , 72076 Tübingen , Germany
- Natural and Medical Sciences Institute (NMI) , Reutlingen , Germany
| | - Martin Weiss
- Department of Women's Health Tübingen , Calwerstraße 7 , 72076 Tübingen , Germany
- Natural and Medical Sciences Institute (NMI) , Reutlingen , Germany
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16
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Govaert M, Smet C, Walsh JL, Van Impe JFM. Dual-Species Model Biofilm Consisting of Listeria monocytogenes and Salmonella Typhimurium: Development and Inactivation With Cold Atmospheric Plasma (CAP). Front Microbiol 2019; 10:2524. [PMID: 31787943 PMCID: PMC6854999 DOI: 10.3389/fmicb.2019.02524] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 08/31/2019] [Accepted: 10/21/2019] [Indexed: 12/17/2022] Open
Abstract
Most environmental biofilms contain a variety of species. These species can establish cooperative and competitive interactions, possibly resulting in an increase or a decrease in antimicrobial resistance. Therefore, results obtained following inactivation of single-species biofilms by means of different technologies (e.g., Cold Atmospheric Plasma, CAP) should be validated for multi-species biofilms. First, a strongly adherent and mature Listeria monocytogenes and S. Typhimurium dual-species biofilm was developed by altering different incubation conditions, i.e., growth medium, incubation temperature, inoculum ratio of L. monocytogenes and S. Typhimurium cells, and incubation time. Adherence and maturity were quantified by means of optical density measurements and viable plate counts, respectively. Secondly, both the (1 day old) reference biofilm and a more mature 7 days old biofilm were treated for different CAP treatment times (0-30 min). Viable plate counts were again used to determine the (remaining) cell density. For both the biofilm development and inactivation, predictive models were applied to describe the growth/inactivation kinetics. Finally, the kinetics of the [1 and 7 day(s) old] dual-species biofilms were compared with those obtained for the corresponding single-species biofilms. Results implied that a strongly adherent and mature reference dual-species biofilm was obtained following 24 h of incubation at 25°C using 20-fold diluted TSB and an inoculum ratio of 1:1. Main observations regarding CAP inactivation were: (i) the dual-species biofilm age had no influence on the CAP efficacy, although a longer treatment time was required for the oldest biofilm, (ii) for the 1 day old biofilms, CAP treatment became less efficient for S. Typhimurium inactivation when this species was part of the dual-species biofilm, while L. monocytogenes inactivation was not influenced by the biofilm type, and (iii) for the 7 days old biofilms, CAP inactivation of both species became more efficient when they were part of the dual-species biofilms. It can be concluded that the efficacy of the CAP treatment is altered when cells become part of a dual-species biofilm, which is quite important with respect to a possible application of CAP for biofilm inactivation within the food industry.
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Affiliation(s)
- Marlies Govaert
- CPMF2, Flemish Cluster Predictive Microbiology in Foods, Ghent, Belgium.,OPTEC, Optimization in Engineering Center-of-Excellence, KU Leuven, Ghent, Belgium.,BioTeC, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Cindy Smet
- CPMF2, Flemish Cluster Predictive Microbiology in Foods, Ghent, Belgium.,OPTEC, Optimization in Engineering Center-of-Excellence, KU Leuven, Ghent, Belgium.,BioTeC, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - James L Walsh
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, United Kingdom
| | - Jan F M Van Impe
- CPMF2, Flemish Cluster Predictive Microbiology in Foods, Ghent, Belgium.,OPTEC, Optimization in Engineering Center-of-Excellence, KU Leuven, Ghent, Belgium.,BioTeC, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
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17
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Abstract
Cold atmospheric plasmas (CAP) have been used in multiple medical fields and have become a promising medical technology. CAP-generating devices are safe and easy to operate and can now be manufactured at a low cost due to advancements in electronics and microchips. A primary application of CAP is as a broad-spectrum antimicrobial technology. With the high incidence of infections caused by drug-resistant microorganisms, a non-antibiotic based treatment modality such as CAP holds great therapeutic promise, particularly in the wound care field. In addition to its antimicrobial properties, CAP treatment enhances wound healing by increasing cutaneous microcirculation, monocyte stimulation, and keratinocyte proliferation. CAP has been used by dentists for disinfection of teeth, enhancing gingival fibroblast activity, and even teeth whitening. CAP can combat tumour growth by increasing the efficacy of antitumour therapeutic agents, reactivating apoptotic pathways, or down-regulating growth-related gene sites. Most of the health-care related research on CAP has occurred in the past 15 years; the field is relatively young and needs additional research, as well as confirmation of the existing supporting literature. The purpose of this report is to provide the reader with an overview of the therapeutic application of the cold plasma technology.
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Affiliation(s)
- Mina Izadjoo
- President and Chief Science Officer, Trideum Biosciences, Integrated Pharma Services, Integrated MicroSciences, Frederick, Maryland, US
| | | | - Hosan Kim
- Senior Scientist, Trideum Biosciences, Integrated Pharma Services
| | - Jeffry Skiba
- Chief Technology Officer, Integrated Pharma Services, Integrated MicroSciences, Frederick, Maryland, US
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18
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Weiss M, Barz J, Ackermann M, Utz R, Ghoul A, Weltmann KD, Stope MB, Wallwiener D, Schenke-Layland K, Oehr C, Brucker S, Loskill P. Dose-Dependent Tissue-Level Characterization of a Medical Atmospheric Pressure Argon Plasma Jet. ACS Appl Mater Interfaces 2019; 11:19841-19853. [PMID: 31071258 DOI: 10.1021/acsami.9b04803] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nonthermal treatment with cold atmospheric plasma (CAP) is a promising option for local treatment of chronic-inflammatory and precancerous lesions as well as various mucosal cancer diseases, besides its primary indication for wound healing and antiseptics. Atmospheric pressure plasma jets (APPJs) are versatile plasma sources, some of which are well-characterized and medically approved. The characterization of APPJs, however, is often based on the treatment of simple solutions or even studies on the plasma effluent itself. To better assess the in vivo effects of CAP treatment, this study aims to recapitulate and study the physicochemical tissue-level effects of APPJ treatment on human primary mucosal tissue and tissue models. High resolution on-tissue infrared (IR) thermography and a first-time-performed spatially resolved optical emission spectroscopy (OES) of the APPJ emissions did not identify potentially tissue-harming effects. In this study, electron-spin-resonance (ESR) spectroscopy on human tissue samples, treated with different CAP doses, enabled the measurement and the distribution of CAP-derived radicals in the tissues. The results correlate plasma dosage and the generation of radical species with cell viability and cell proliferation of primary human fibroblasts while demonstrating apoptosis-independent antiproliferative cell effects. Moreover, a dose-dependent increase of cells in the G1 phase of the cell cycle was observed, stressing the likely important role of cell cycle regulation for antiproliferative CAP mechanisms. This study introduces suitable methods for CAP monitoring on tissues and contributes to a better understanding of tissue-derived plasma effects of APPJs.
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Affiliation(s)
- Martin Weiss
- Department of Women's Health , Eberhard Karls Universität Tübingen , Tübingen , Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology , Stuttgart , Germany
| | - Jakob Barz
- Fraunhofer Institute for Interfacial Engineering and Biotechnology , Stuttgart , Germany
| | - Michael Ackermann
- Fraunhofer Institute for Interfacial Engineering and Biotechnology , Stuttgart , Germany
| | - Raphael Utz
- Fraunhofer Institute for Interfacial Engineering and Biotechnology , Stuttgart , Germany
| | - Aya Ghoul
- Fraunhofer Institute for Interfacial Engineering and Biotechnology , Stuttgart , Germany
| | | | - Matthias B Stope
- Department of Urology , University Medicine Greifswald , Greifswald , Germany
| | - Diethelm Wallwiener
- Department of Women's Health , Eberhard Karls Universität Tübingen , Tübingen , Germany
| | - Katja Schenke-Layland
- Department of Women's Health , Eberhard Karls Universität Tübingen , Tübingen , Germany
- Natural and Medical Sciences Institute (NMI) , Reutlingen , Germany
| | - Christian Oehr
- Fraunhofer Institute for Interfacial Engineering and Biotechnology , Stuttgart , Germany
| | - Sara Brucker
- Department of Women's Health , Eberhard Karls Universität Tübingen , Tübingen , Germany
| | - Peter Loskill
- Department of Women's Health , Eberhard Karls Universität Tübingen , Tübingen , Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology , Stuttgart , Germany
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19
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Privat-Maldonado A, Gorbanev Y, Dewilde S, Smits E, Bogaerts A. Reduction of Human Glioblastoma Spheroids Using Cold Atmospheric Plasma: The Combined Effect of Short- and Long-Lived Reactive Species. Cancers (Basel) 2018; 10:E394. [PMID: 30360539 PMCID: PMC6266784 DOI: 10.3390/cancers10110394] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/09/2018] [Accepted: 10/19/2018] [Indexed: 01/09/2023] Open
Abstract
Cold atmospheric plasma (CAP) is a promising technology against multiple types of cancer. However, the current findings on the effect of CAP on two-dimensional glioblastoma cultures do not consider the role of the tumour microenvironment. The aim of this study was to determine the ability of CAP to reduce and control glioblastoma spheroid tumours in vitro. Three-dimensional glioblastoma spheroid tumours (U87-Red, U251-Red) were consecutively treated directly and indirectly with a CAP using dry He, He + 5% H₂O or He + 20% H₂O. The cytotoxicity and spheroid shrinkage were monitored using live imaging. The reactive oxygen and nitrogen species produced in phosphate buffered saline (PBS) were measured by electron paramagnetic resonance (EPR) and colourimetry. Cell migration was also assessed. Our results demonstrate that consecutive CAP treatments (He + 20% H₂O) substantially shrank U87-Red spheroids and to a lesser degree, U251-Red spheroids. The cytotoxic effect was due to the short- and long-lived species delivered by CAP: they inhibited spheroid growth, reduced cell migration and decreased proliferation in CAP-treated spheroids. Direct treatments were more effective than indirect treatments, suggesting the importance of CAP-generated, short-lived species for the growth inhibition and cell cytotoxicity of solid glioblastoma tumours. We concluded that CAP treatment can effectively reduce glioblastoma tumour size and restrict cell migration, thus demonstrating the potential of CAP therapies for glioblastoma.
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Affiliation(s)
- Angela Privat-Maldonado
- PLASMANT, Chemistry Department, University of Antwerp, 2610 Antwerp, Belgium.
- Solid Tumor Immunology Group, Center for Oncological Research, University of Antwerp, 2610 Antwerp, Belgium.
| | - Yury Gorbanev
- PLASMANT, Chemistry Department, University of Antwerp, 2610 Antwerp, Belgium.
| | - Sylvia Dewilde
- Protein Chemistry, Proteomics and Epigenetic Signaling, Department of Biomedical Sciences, University of Antwerp, 2610 Antwerp, Belgium.
| | - Evelien Smits
- Solid Tumor Immunology Group, Center for Oncological Research, University of Antwerp, 2610 Antwerp, Belgium.
| | - Annemie Bogaerts
- PLASMANT, Chemistry Department, University of Antwerp, 2610 Antwerp, Belgium.
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