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Plasma-Activation of Larger Liquid Volumes by an Inductively-Limited Discharge for Antimicrobial Purposes. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9102150] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A new configuration of a discharge chamber and power source for the treatment of up to 1 L of liquid is presented. A leakage transformer, energizing two metal electrodes positioned above the liquid, limits the discharge current inductively by utilizing the weak magnetic coupling between the primary and secondary coils. No additional means to avoid arcing (electric short-circuiting), e.g., dielectric barriers or resistors, are needed. By using this technique, exceeding the breakdown voltage leads to the formation of transient spark discharges, producing non-thermal plasma (NTP). These discharges effected significant changes in the properties of the treated liquids (distilled water, physiological saline solution, and tap water). Considerable concentrations of nitrite and nitrate were detected after the plasma treatment. Furthermore, all tested liquids gained strong antibacterial efficacy which was shown by inactivating suspended Escherichia coli and Staphylococcus aureus. Plasma-treated tap water had the strongest effect, which is shown for the first time. Additionally, the pH-value of tap water did not decrease during the plasma treatment, and its conductivity increased less than for the other tested liquids.
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Schneider C, Gebhardt L, Arndt S, Karrer S, Zimmermann JL, Fischer MJM, Bosserhoff AK. Acidification is an Essential Process of Cold Atmospheric Plasma and Promotes the Anti-Cancer Effect on Malignant Melanoma Cells. Cancers (Basel) 2019; 11:cancers11050671. [PMID: 31091795 PMCID: PMC6562457 DOI: 10.3390/cancers11050671] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/04/2019] [Accepted: 05/08/2019] [Indexed: 12/11/2022] Open
Abstract
(1) Background: Cold atmospheric plasma (CAP) is ionized gas near room temperature. The anti-cancer effects of CAP were confirmed for several cancer types and were attributed to CAP-induced reactive species. However, the mode of action of CAP is still not well understood. (2) Methods: Changes in cytoplasmic Ca2+ level after CAP treatment of malignant melanoma cells were analyzed via the intracellular Ca2+ indicator fura-2 AM. CAP-produced reactive species were determined by fluorescence spectroscopic and protein nitration by Western Blot analysis. (3) Results: CAP caused a strong acidification of water and solutions that were buffered with the so-called Good buffers, while phosphate-buffered solutions with higher buffer capacity showed minor pH reductions. The CAP-induced Ca2+ influx in melanoma cells was stronger in acidic pH than in physiological conditions. NO formation that is induced by CAP was dose- and pH-dependent and CAP-treated solutions only caused protein nitration in cells under acidic conditions. (4) Conclusions: We describe the impact of CAP-induced acidification on the anti-cancer effects of CAP. A synergistic effect of CAP-induced ROS, RNS, and acidic conditions affected the intracellular Ca2+ level of melanoma cells. As the microenvironment of tumors is often acidic, further acidification might be one reason for the specific anti-cancer effects of CAP.
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Affiliation(s)
- Christin Schneider
- Institute of Biochemistry, Emil-Fischer-Center, University of Erlangen-Nürnberg, 91054 Erlangen, Germany.
| | - Lisa Gebhardt
- Institute of Physiology and Pathophysiology, University of Erlangen-Nürnberg, 91054 Erlangen, Germany.
| | - Stephanie Arndt
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany.
| | - Sigrid Karrer
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany.
| | | | - Michael J M Fischer
- Institute of Physiology and Pathophysiology, University of Erlangen-Nürnberg, 91054 Erlangen, Germany.
- Institute of Physiology, Medical University of Vienna, 1090 Vienna, Austria.
| | - Anja-Katrin Bosserhoff
- Institute of Biochemistry, Emil-Fischer-Center, University of Erlangen-Nürnberg, 91054 Erlangen, Germany.
- Comprehensive Cancer Center (CCC) Erlangen-EMN, 91054 Erlangen, Germany.
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Lackmann JW, Bruno G, Jablonowski H, Kogelheide F, Offerhaus B, Held J, Schulz-von der Gathen V, Stapelmann K, von Woedtke T, Wende K. Nitrosylation vs. oxidation - How to modulate cold physical plasmas for biological applications. PLoS One 2019; 14:e0216606. [PMID: 31067274 PMCID: PMC6505927 DOI: 10.1371/journal.pone.0216606] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/24/2019] [Indexed: 02/07/2023] Open
Abstract
Thiol moieties are major targets for cold plasma-derived nitrogen and oxygen species, making CAPs convenient tools to modulate redox-signaling pathways in cells and tissues. The underlying biochemical pathways are currently under investigation but especially the role of CAP derived RNS is barely understood. Their potential role in protein thiol nitrosylation would be relevant in inflammatory processes such as wound healing and improving their specific production by CAP would allow for enhanced treatment options beyond the current application. The impact of a modified kINPen 09 argon plasma jet with nitrogen shielding on cysteine as a thiol-carrying model substance was investigated by FTIR spectroscopy and high-resolution mass spectrometry. The deposition of short-lived radical species was measured by electron paramagnetic resonance spectroscopy, long-lived species were quantified by ion chromatography (NO2-, NO3-) and xylenol orange assay (H2O2). Product profiles were compared to samples treated with the so-called COST jet, being introduced by a European COST initiative as a reference device, using both reference conditions as well as conditions adjusted to kINPen gas mixtures. While thiol oxidation was dominant under all tested conditions, an Ar + N2/O2 gas compositions combined with a nitrogen curtain fostered nitric oxide deposition and the desired generation of S-nitrosocysteine. Interestingly, the COST-jet revealed significant differences in its chemical properties in comparison to the kINPen by showing a more stable production of RNS with different gas admixtures, indicating a different •NO production pathway. Taken together, results indicate various chemical properties of kINPen and COST-jet as well as highlight the potential of plasma tuning not only by gas admixtures alone but by adjusting the surrounding atmosphere as well.
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Affiliation(s)
- Jan-Wilm Lackmann
- ZIK plasmatis at Leibniz Institute for Plasma Science and Technology (INP Greifswald e.V.), Greifswald, Germany
- * E-mail: (JWL); (KW)
| | - Giuliana Bruno
- ZIK plasmatis at Leibniz Institute for Plasma Science and Technology (INP Greifswald e.V.), Greifswald, Germany
| | - Helena Jablonowski
- ZIK plasmatis at Leibniz Institute for Plasma Science and Technology (INP Greifswald e.V.), Greifswald, Germany
| | - Friederike Kogelheide
- Institute for Electrical Engineering and Plasma Technology, Ruhr University Bochum, Bochum, Germany
| | - Björn Offerhaus
- Institute for Electrical Engineering and Plasma Technology, Ruhr University Bochum, Bochum, Germany
| | - Julian Held
- Experimental Physics II, Ruhr University Bochum, Bochum, Germany
| | | | - Katharina Stapelmann
- Institute for Electrical Engineering and Plasma Technology, Ruhr University Bochum, Bochum, Germany
- Plasma for Life Sciences, Department of Nuclear Engineering, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Thomas von Woedtke
- ZIK plasmatis at Leibniz Institute for Plasma Science and Technology (INP Greifswald e.V.), Greifswald, Germany
| | - Kristian Wende
- ZIK plasmatis at Leibniz Institute for Plasma Science and Technology (INP Greifswald e.V.), Greifswald, Germany
- * E-mail: (JWL); (KW)
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54
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Zhou R, Li J, Zhou R, Zhang X, Yang S. Atmospheric-pressure plasma treated water for seed germination and seedling growth of mung bean and its sterilization effect on mung bean sprouts. INNOV FOOD SCI EMERG 2019. [DOI: 10.1016/j.ifset.2018.08.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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55
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Freund E, Liedtke KR, van der Linde J, Metelmann HR, Heidecke CD, Partecke LI, Bekeschus S. Physical plasma-treated saline promotes an immunogenic phenotype in CT26 colon cancer cells in vitro and in vivo. Sci Rep 2019; 9:634. [PMID: 30679720 PMCID: PMC6345938 DOI: 10.1038/s41598-018-37169-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 12/05/2018] [Indexed: 02/07/2023] Open
Abstract
Metastatic colorectal cancer is the fourth most common cause of cancer death. Current options in palliation such as hyperthermic intraperitoneal chemotherapy (HIPEC) present severe side effects. Recent research efforts suggested the therapeutic use of oxidant-enriched liquid using cold physical plasma. To investigate a clinically accepted treatment regimen, we assessed the antitumor capacity of plasma-treated saline solution. In response to such liquid, CT26 murine colon cancer cells were readily oxidized and showed cell growth with subsequent apoptosis, cell cycle arrest, and upregulation of immunogenic cell death (ICD) markers in vitro. This was accompanied by marked morphological changes with re-arrangement of actin fibers and reduced motility. Induction of an epithelial-to-mesenchymal transition phenotype was not observed. Key results were confirmed in MC38 colon and PDA6606 pancreatic cancer cells. Compared to plasma-treated saline, hydrogen peroxide was inferiorly toxic in 3D tumor spheroids but of similar efficacy in 2D models. In vivo, plasma-treated saline decreased tumor burden in Balb/C mice. This was concomitant with elevated numbers of intratumoral macrophages and increased T cell activation following incubation with CT26 cells ex vivo. Being a potential adjuvant for HIPEC therapy, our results suggest oxidizing saline solutions to inactivate colon cancer cells while potentially stimulating antitumor immune responses.
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Affiliation(s)
- Eric Freund
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Kim Rouven Liedtke
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Julia van der Linde
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Hans-Robert Metelmann
- Oral and Maxillofacial Surgery/Plastic Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Claus-Dieter Heidecke
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Lars-Ivo Partecke
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Sander Bekeschus
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany.
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56
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Cold Physical Plasma Modulates p53 and Mitogen-Activated Protein Kinase Signaling in Keratinocytes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7017363. [PMID: 30733851 PMCID: PMC6348845 DOI: 10.1155/2019/7017363] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/10/2018] [Accepted: 10/29/2018] [Indexed: 02/06/2023]
Abstract
Small reactive oxygen and nitrogen species (ROS/RNS) driven signaling plays a significant role in wound healing processes by controlling cell functionality and wound phase transitions. The application of cold atmospheric pressure plasma (CAP), a partially ionized gas expelling a variety of ROS and RNS, was shown to be effective in chronic wound management and contrastingly also in malignant diseases. The underlying molecular mechanisms are not well understood but redox signaling events are involved. As a central player, the cellular tumor antigen p53 governs regulatory networks controlling proliferation, death, or metabolism, all of which are grossly modulated by anti- and prooxidant signals. Using a human skin cell model, a transient phosphorylation and nuclear translocation of p53, preceded by the phosphorylation of upstream serine- (ATM) and serine/threonine-protein kinase (ATR), was detected after CAP treatment. Results indicate that ATM acts as a direct redox sensor without relevant contribution of phosphorylation of the histone A2X, a marker of DNA damage. Downstream events are the activation of checkpoint kinases Chk1/2 and several mitogen-activated (MAP) kinases. Subsequently, the expression of MAP kinase signaling effectors (e.g., heat shock protein Hsp27), epithelium derived growth factors, and cytokines (Interleukins 6 + 8) was increased. A number of p53 downstream effectors pointed at a decrease of cell growth due to DNA repair processes. In summary, CAP treatment led to an activation of cell repair and defense mechanisms including a modulation of paracrine inflammatory signals emphasizing the role of prooxidant species in CAP-related cell signaling.
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57
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Xia J, Zeng W, Xia Y, Wang B, Xu D, Liu D, Kong MG, Dong Y. Cold atmospheric plasma induces apoptosis of melanoma cells via Sestrin2-mediated nitric oxide synthase signaling. JOURNAL OF BIOPHOTONICS 2019; 12:e201800046. [PMID: 29931745 DOI: 10.1002/jbio.201800046] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
Cold atmospheric plasma (CAP) represents a promising therapy for selectively cancer killing. However, the mechanism of CAP-induced cancer cell death remains unclear. Here, we identified the tumor necrosis factor-family members, especially Fas, and overloaded intracellular nitric oxide participated in CAP induced apoptosis in A375 and A875 melanoma cell lines, which was known as extrinsic apoptosis pathway. This progress was mediated by antagonistic protein of reactive oxygen species, Sestrin2. The over expression of Sestrin2 induced by plasma treatment resulted in phosphorylation of p38 mitogen-activated protein kinase (MAPK), followed by increased expression of nitric oxide synthase (iNOS), Fas and Fas ligand. Depletion of Sestrin2 reduced iNOS and Fas expression, which was associated with reduction of plasma-induced apoptosis. In contrast, inhibition of iNOS activity and phosphorylation of p38 did not alter Sestrin2 expression in plasma-treated melanoma cells. Taken together, cold atmospheric plasma increases Sestrin2 expression and further activates downstream iNOS, Fas and p38 MAPK signaling to induce apoptosis of melanoma cell lines. These findings suggest a previously unrecognized mechanism in melanoma cells response to cold atmospheric plasma therapy.
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Affiliation(s)
- Jun Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Weihui Zeng
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Bingchuan Wang
- Center of Plasma Biomedicine, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Dehui Xu
- Center of Plasma Biomedicine, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Dingxin Liu
- Center of Plasma Biomedicine, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Michael G Kong
- Center of Plasma Biomedicine, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Yingying Dong
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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58
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Combination of chemotherapy and physical plasma elicits melanoma cell death via upregulation of SLC22A16. Cell Death Dis 2018; 9:1179. [PMID: 30518936 PMCID: PMC6281583 DOI: 10.1038/s41419-018-1221-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 11/14/2018] [Accepted: 11/16/2018] [Indexed: 12/22/2022]
Abstract
Malignant melanoma is an aggressive cancer that develops drug resistance leading to poor prognosis. Efficient delivery of chemotherapeutic drugs to the tumor tissue remains a major challenge in treatment regimens. Using murine (B16) and human (SK-MEL-28) melanoma cells, we investigated traditional cytotoxic agents in combination with cold physical plasma-derived oxidants. We report synergistic cytotoxicity of doxorubicin and epirubicin, and additive toxicity of oxaliplatin with plasma exposure in coefficient of drug interaction analysis. The combination treatment led to an increased DNA damage response (increased phosphorylation of ATM, γ-H2AX foci, and micronuclei formation). There was also an enhanced secretion of immunogenic cell death markers ATP and CXCL10 in cell culture supernatants following combination treatment. The observed synergistic effects in tumor cells was due to enhanced intracellular doxorubicin accumulation via upregulation of the organic cationic transporter SLC22A16 by plasma treatment. The doxorubicin uptake was reversed by pretreating cells with antioxidants or calcium influx inhibitor BTP2. Endoribonuclease-prepared siRNAs (esiRNA)-mediated knockdown of SLC22A16 inhibited the additive cytotoxic effect in tumor cells. SK-MEL 28 and THP-1 monocytes co-culture led to greater THP-1 cell migration and SK-MEL-28 cytotoxicity when compared with controls. Taken together, we propose pro-oxidant treatment modalities to sensitize chemoresistant melanoma cells towards subsequent chemotherapy, which may serve as therapeutic strategy in combination treatment in oncology.
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59
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Wahyuningtyas ES, Iswara A, Sari Y, Kamal S, Santosa B, Ishijima T, Nakatani T, Putri IK, Nasruddin N. Comparative study on Manuka and Indonesian honeys to support the application of plasma jet during proliferative phase on wound healing. CLINICAL PLASMA MEDICINE 2018. [DOI: 10.1016/j.cpme.2018.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Hasse S, Müller MC, Schallreuter KU, von Woedtke T. Stimulation of melanin synthesis in melanoma cells by cold plasma. Biol Chem 2018; 400:101-109. [DOI: 10.1515/hsz-2018-0223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 10/30/2018] [Indexed: 11/15/2022]
Abstract
Abstract
Skin color is derived from epidermal melanocytes that contain specialized organelles in which melanin is formed. The formation of melanin is a well-orchestrated process, and reactive oxygen species (ROS) play a role in numerous enzymatic conversions, such as the reactions catalyzed by tyrosinase and tyrosine hydroxylase. Currently, there is ample evidence that cold plasma exerts biological effects on cells through the impact of ROS and reactive nitrogen species (RNS). Modulation of melanin biosynthesis by cold plasma has not yet been investigated. This study investigated melanin biosynthesis of human melanoma cell lines with different endogenous melanin contents (SK-Mel 28, G-361, FM-55-P and MNT-1) in response to cold plasma-derived reactive species. Initially, the distribution of melanosomes, via immunofluorescence, and the influence of microphthalmia-associated transcription factor (MiTF), as a key transcription factor, was investigated. In our experimental setup, all of the tested cell lines had an elevated melanin content after exposure to cold plasma. These promising results suggest a novel potential application of cold plasma for the regulation of melanogenesis and may be a useful tool for influencing skin color in the future.
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Affiliation(s)
- Sybille Hasse
- Department Plasma Life Science , Leibniz-Institute for Plasma Science and Technology (INP) , Felix-Hausdorff-Str. 2 , D-17489 Greifswald , Germany
| | - Marie-Christine Müller
- Department Plasma Life Science , Leibniz-Institute for Plasma Science and Technology (INP) , Felix-Hausdorff-Str. 2 , D-17489 Greifswald , Germany
| | - Karin Uta Schallreuter
- Institute for Pigmentary Disorders e.V. , Walther-Rathenau-Str. 49a , D-17489 Greifswald , Germany
| | - Thomas von Woedtke
- Department Plasma Life Science , Leibniz-Institute for Plasma Science and Technology (INP) , Felix-Hausdorff-Str. 2 , D-17489 Greifswald , Germany
- Institute for Hygiene and Environmental Medicine, University Medicine Greifswald , Ferdinand-Sauerbruch-Str. , D-17475 Greifswald , Germany
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61
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Bekeschus S, Freund E, Wende K, Gandhirajan RK, Schmidt A. Hmox1 Upregulation Is a Mutual Marker in Human Tumor Cells Exposed to Physical Plasma-Derived Oxidants. Antioxidants (Basel) 2018; 7:E151. [PMID: 30373228 PMCID: PMC6262576 DOI: 10.3390/antiox7110151] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/15/2018] [Accepted: 10/25/2018] [Indexed: 02/06/2023] Open
Abstract
Increasing numbers of cancer deaths worldwide demand for new treatment avenues. Cold physical plasma is a partially ionized gas expelling a variety of reactive oxygen and nitrogen species, which can be harnesses therapeutically. Plasmas and plasma-treated liquids have antitumor properties in vitro and in vivo. Yet, global response signatures to plasma treatment have not yet been identified. To this end, we screened eight human cancer cell lines to investigate effects of low-dose, tumor-static plasma-treated medium (PTM) on cellular activity, immune-modulatory properties, and transcriptional levels of 22 redox-related genes. With PTM, a moderate reduction of metabolic activity and modest modulation of chemokine/cytokine pattern and markers of immunogenic cell death was observed. Strikingly, the Nuclear factor (erythroid-derived 2)-like 2 (nrf2) target heme oxygenase 1 (hmox1) was upregulated in all cell lines 4 h post PTM-treatment. nrf2 was not changed, but its baseline expression inversely and significantly correlated with hmox1 expression after exposure to PTM. Besides awarding hmox1 a central role with plasma-derived oxidants, we present a transcriptional redox map of 22 targets and chemokine/cytokine secretion map of 13 targets across eight different human tumor cell lines of four tumor entities at baseline activity that are useful for future studies in this field.
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Affiliation(s)
- Sander Bekeschus
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Eric Freund
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Kristian Wende
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Rajesh Kumar Gandhirajan
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Anke Schmidt
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
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Schmidt A, Bekeschus S. Redox for Repair: Cold Physical Plasmas and Nrf2 Signaling Promoting Wound Healing. Antioxidants (Basel) 2018; 7:E146. [PMID: 30347767 PMCID: PMC6210784 DOI: 10.3390/antiox7100146] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/12/2018] [Accepted: 10/18/2018] [Indexed: 12/15/2022] Open
Abstract
Chronic wounds and ulcers are major public health threats. Being a substantial burden for patients and health care systems alike, better understanding of wound pathophysiology and new avenues in the therapy of chronic wounds are urgently needed. Cold physical plasmas are particularly effective in promoting wound closure, irrespective of its etiology. These partially ionized gases deliver a therapeutic cocktail of reactive oxygen and nitrogen species safely at body temperature and without genotoxic side effects. This field of plasma medicine reanimates the idea of redox repair in physiological healing. This review compiles previous findings of plasma effects in wound healing. It discusses new links between plasma treatment of cells and tissues, and the perception and intracellular translation of plasma-derived reactive species via redox signaling pathways. Specifically, (i) molecular switches governing redox-mediated tissue response; (ii) the activation of the nuclear E2-related factor (Nrf2) signaling, together with antioxidative and immunomodulatory responses; and (iii) the stabilization of the scaffolding function and actin network in dermal fibroblasts are emphasized in the light of wound healing.
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Affiliation(s)
- Anke Schmidt
- Plasma Life Science, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Sander Bekeschus
- ZIK-PRE, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
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63
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Cell stimulation versus cell death induced by sequential treatments with pulsed electric fields and cold atmospheric pressure plasma. PLoS One 2018; 13:e0204916. [PMID: 30312292 PMCID: PMC6193580 DOI: 10.1371/journal.pone.0204916] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 09/17/2018] [Indexed: 12/17/2022] Open
Abstract
Pulsed electric fields (PEFs) and cold atmospheric pressure plasma (CAP) are currently both investigated for medical applications. The exposure of cells to PEFs can induce the formation of pores in cell membranes and consequently facilitate the uptake of molecules. In contrast, CAP mainly acts through reactive species that are generated in the liquid environment. The objective of this study was to determine, if PEFs combined with plasma-treated cell culture medium can mutually reinforce effects on viability of mammalian cells. Experiments were conducted with rat liver epithelial WB-F344 cells and their tumorigenic counterpart WB-ras for a direct comparison of non-tumorigenic and tumorigenic cells from the same origin. Viability after treatments strongly depended on cell type and applied field strength. Notably, tumorigenic WB-ras cells responded more sensitive to the respective treatments than non-tumorigenic WB-F344 cells. More cells were killed when plasma-treated medium was applied first in combination with treatments with 100-μs PEFs. For the reversed treatment order, i.e. application of PEFs first, the combination with 100-ns PEFs resulted in a stimulating effect for non-tumorigenic but not for tumorigenic cells. The results suggest that other mechanisms, besides simple pore formation, contributed to the mutually reinforcing effects of the two methods.
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64
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Plasma Treatment of Ovarian Cancer Cells Mitigates Their Immuno-Modulatory Products Active on THP-1 Monocytes. PLASMA 2018. [DOI: 10.3390/plasma1010018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Cancers modulate their microenvironment to favor their growth. In particular, monocytes and macrophages are targeted by immuno-modulatory molecules installed by adjacent tumor cells such as ovarian carcinomas. Cold physical plasma has recently gained attention as innovative tumor therapy. We confirmed this for the OVCAR-3 and SKOV-3 ovarian cancer cell lines in a caspase 3/7 independent and dependent manner, respectively. To elaborate whether plasma exposure interferes with their immunomodulatory properties, supernatants of control and plasma-treated tumor cells were added to human THP-1 monocyte cultures. In the latter, modest effects on intracellular oxidation or short-term metabolic activity were observed. By contrast, supernatants of plasma-treated cancer cells abrogated significant changes in morphological and phenotypic features of THP-1 cells compared to those cultured with supernatants of non-treated tumor cell counterparts. This included cell motility and morphology, and modulated expression patterns of nine cell surface markers known to be involved in monocyte activation. This was particularly pronounced in SKOV-3 cells. Further analysis of tumor cell supernatants indicated roles of small particles and interleukin 8 and 18, with MCP1 presumably driving activation in monocytes. Altogether, our results suggest plasma treatment to alleviate immunomodulatory secretory products of ovarian cancer cells is important for driving a distinct myeloid cell phenotype.
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65
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Non-thermal plasma treated solution with potential as a novel therapeutic agent for nasal mucosa regeneration. Sci Rep 2018; 8:13754. [PMID: 30213992 PMCID: PMC6137218 DOI: 10.1038/s41598-018-32077-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/13/2018] [Indexed: 12/18/2022] Open
Abstract
Adequate and rapid mucosal regeneration is one of the most important factors in the healing process of nasal mucosa after surgery or trauma. In particular, delayed mucosal regeneration after surgery is an important cause of surgical failure. However, no effective treatment is available yet. Non-thermal plasma (NTP) has several medical effects, but the existing probe type is limited to local direct treatment. Therefore, we investigated the various effects using liquid type plasma to overcome this limitation. In addition, the therapeutic effects of non-thermal plasma treated solution (NTS) on nasal mucosa have yet to be determined. Experiments were carried out using BEAS-2B, a human bronchial epithelial cell line similar to nasal mucosa epithelium. NTS had no cytotoxicity to the BEAS-2B cells and enhanced cell proliferation. NTS also promoted migration of BEAS-2B cells. NTS increased cell proliferation and migration via epidermal growth factor receptor (EGFR) activities and epithelial-to-mesenchymal transition (EMT) signaling. Furthermore, NTS enhanced wound healing of nasal mucosa in an animal model. Accordingly, NTS promotes nasal mucosa wound healing by increasing cell proliferation and migration. These findings suggest the therapeutic potential of NTS in nasal mucosa wound healing.
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66
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Plasma-treated medium tunes the inflammatory profile in murine bone marrow-derived macrophages. CLINICAL PLASMA MEDICINE 2018. [DOI: 10.1016/j.cpme.2018.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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67
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Cytochrome C oxidase Inhibition and Cold Plasma-derived Oxidants Synergize in Melanoma Cell Death Induction. Sci Rep 2018; 8:12734. [PMID: 30143716 PMCID: PMC6109085 DOI: 10.1038/s41598-018-31031-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 08/12/2018] [Indexed: 12/27/2022] Open
Abstract
Despite striking advances in the treatment of metastasized melanoma, the disease is often still fatal. Attention is therefore paid towards combinational regimens. Oxidants endogenously produced in mitochondria are currently targeted in pre-clinical and clinical studies. Cytotoxic synergism of mitochondrial cytochrome c oxidase (CcO) inhibition in conjunction with addition of exogenous oxidants in 2D and 3D melanoma cell culture models were examined. Murine (B16) and human SK-MEL-28 melanoma cells exposed to low-dose CcO inhibitors (potassium cyanide or sodium azide) or exogenous oxidants alone were non-toxic. However, we identified a potent cytotoxic synergism upon CcO inhibition and plasma-derived oxidants that led to rapid onset of caspase-independent melanoma cell death. This was mediated by mitochondrial dysfunction induced by superoxide elevation and ATP depletion. This observation was validated by siRNA-mediated knockdown of COX4I1 in SK-MEL-28 cells with cytotoxicity in the presence of exogenous oxidants. Similar effects were obtained with ADDA 5, a recently identified specific inhibitor of CcO activity showing low toxicity in vivo. Human keratinocytes were not affected by this combinational treatment, suggesting selective effects on melanoma cells. Hence, targeting mitochondrial CcO activity in conjunction with exogenous pro oxidant therapies may constitute a new and effective melanoma treatment modality.
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Jablonowski H, Santos Sousa J, Weltmann KD, Wende K, Reuter S. Quantification of the ozone and singlet delta oxygen produced in gas and liquid phases by a non-thermal atmospheric plasma with relevance for medical treatment. Sci Rep 2018; 8:12195. [PMID: 30111826 PMCID: PMC6093894 DOI: 10.1038/s41598-018-30483-w] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 07/27/2018] [Indexed: 12/15/2022] Open
Abstract
In the field of plasma medicine, the identification of relevant reactive species in the liquid phase is highly important. To design the plasma generated species composition for a targeted therapeutic application, the point of origin of those species needs to be known. The dominant reactive oxygen species generated by the plasma used in this study are atomic oxygen, ozone, and singlet delta oxygen. The species density changes with the distance to the active plasma zone, and, hence, the oxidizing potential of this species cocktail can be tuned by altering the treatment distance. In both phases (gas and liquid), independent techniques have been used to determine the species concentration as a function of the distance. The surrounding gas composition and ambient conditions were controlled between pure nitrogen and air-like by using a curtain gas device. In the gas phase, in contrast to the ozone density, the singlet delta oxygen density showed to be more sensitive to the distance. Additionally, by changing the surrounding gas, admixing or not molecular oxygen, the dynamics of ozone and singlet delta oxygen behave differently. Through an analysis of the reactive species development for the varied experimental parameters, the importance of several reaction pathways for the proceeding reactions was evaluated and some were eventually excluded.
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Affiliation(s)
- Helena Jablonowski
- ZIK plasmatis at Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald e.V.), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany.
| | - Joao Santos Sousa
- LPGP, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Klaus-Dieter Weltmann
- Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald e.V.), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
| | - Kristian Wende
- ZIK plasmatis at Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald e.V.), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
| | - Stephan Reuter
- Leibniz Institute for Plasma Science and Technology e.V. (INP Greifswald e.V.), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
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Schneider C, Gebhardt L, Arndt S, Karrer S, Zimmermann JL, Fischer MJM, Bosserhoff AK. Cold atmospheric plasma causes a calcium influx in melanoma cells triggering CAP-induced senescence. Sci Rep 2018; 8:10048. [PMID: 29968804 PMCID: PMC6030087 DOI: 10.1038/s41598-018-28443-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 06/22/2018] [Indexed: 01/26/2023] Open
Abstract
Cold atmospheric plasma (CAP) is a promising approach in anti-cancer therapy, eliminating cancer cells with high selectivity. However, the molecular mechanisms of CAP action are poorly understood. In this study, we investigated CAP effects on calcium homeostasis in melanoma cells. We observed increased cytoplasmic calcium after CAP treatment, which also occurred in the absence of extracellular calcium, indicating the majority of the calcium increase originates from intracellular stores. Application of previously CAP-exposed extracellular solutions also induced cytoplasmic calcium elevations. A substantial fraction of this effect remained when the application was delayed for one hour, indicating the chemical stability of the activating agent(s). Addition of ryanodine and cyclosporin A indicate the involvement of the endoplasmatic reticulum and the mitochondria. Inhibition of the cytoplasmic calcium elevation by the intracellular chelator BAPTA blocked CAP-induced senescence. This finding helps to understand the molecular influence and the mode of action of CAP on tumor cells.
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Affiliation(s)
- Christin Schneider
- Institute of Biochemistry, Emil-Fischer-Center, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Lisa Gebhardt
- Institute of Physiology and Pathophysiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Stephanie Arndt
- Department of Dermatology, University Hospital of Regensburg, Regensburg, Germany
| | - Sigrid Karrer
- Department of Dermatology, University Hospital of Regensburg, Regensburg, Germany
| | | | - Michael J M Fischer
- Institute of Physiology and Pathophysiology, University of Erlangen-Nürnberg, Erlangen, Germany
- Institute of Physiology, Medical University of Vienna, Vienna, Austria
| | - Anja-Katrin Bosserhoff
- Institute of Biochemistry, Emil-Fischer-Center, University of Erlangen-Nürnberg, Erlangen, Germany.
- Comprehensive Cancer Center (CCC) Erlangen-EMN, Erlangen, Germany.
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70
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Pasqual-Melo G, Gandhirajan RK, Stoffels I, Bekeschus S. Targeting malignant melanoma with physical plasmas. CLINICAL PLASMA MEDICINE 2018. [DOI: 10.1016/j.cpme.2018.03.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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71
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Bekeschus S, Schmidt A, Kramer A, Metelmann HR, Adler F, von Woedtke T, Niessner F, Weltmann KD, Wende K. High throughput image cytometry micronucleus assay to investigate the presence or absence of mutagenic effects of cold physical plasma. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2018; 59:268-277. [PMID: 29417643 DOI: 10.1002/em.22172] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/17/2017] [Accepted: 11/21/2017] [Indexed: 06/08/2023]
Abstract
Promising cold physical plasma sources have been developed in the field of plasma medicine. An important prerequisite to their clinical use is lack of genotoxic effects in cells. During optimization of one or even different plasma sources for a specific application, large numbers of samples need to be analyzed. There are soft and easy-to-assess markers for genotoxic stress such as phosphorylation of histone H2AX (γH2AX) but only few tests are accredited by the OECD with regard to mutagenicity detection. The micronucleus (MN) assay is among them but often requires manual counting of many thousands of cells per sample under the microscope. A high-throughput MN assay is presented using image flow cytometry and image analysis software. A human lymphocyte cell line was treated with plasma generated with ten different feed gas conditions corresponding to distinct reactive species patterns that were investigated for their genotoxic potential. Several millions of cells were automatically analyzed by a MN quantification strategy outlined in detail in this work. Our data demonstrates the absence of newly formed MN in any feed gas condition using the atmospheric pressure plasma jet kINPen. As positive control, ionizing radiation gave a significant 5-fold increase in micronucleus frequency. Thus, this assay is suitable to assess the genotoxic potential in large sample sets of cells exposed chemical or physical agents including plasmas in an efficient, reliable, and semiautomated manner. Environ. Mol. Mutagen. 59:268-277, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Sander Bekeschus
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | - Anke Schmidt
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | - Axel Kramer
- Institute for Hygiene and Environmental Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Hans-Robert Metelmann
- Department of Oral and Maxillofacial Surgery/Plastic Surgery, University Medicine Greifswald, Greifswald, Germany
| | - Frank Adler
- Department of Radiotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Thomas von Woedtke
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
- Institute for Hygiene and Environmental Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Felix Niessner
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | - Klaus-Dieter Weltmann
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | - Kristian Wende
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
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Girard F, Peret M, Dumont N, Badets V, Blanc S, Gazeli K, Noël C, Belmonte T, Marlin L, Cambus JP, Simon G, Sojic N, Held B, Arbault S, Clément F. Correlations between gaseous and liquid phase chemistries induced by cold atmospheric plasmas in a physiological buffer. Phys Chem Chem Phys 2018; 20:9198-9210. [PMID: 29560996 DOI: 10.1039/c8cp00264a] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The understanding of plasma-liquid interactions is of major importance, not only in physical chemistry, chemical engineering and polymer science, but in biomedicine as well as to better control the biological processes induced on/in biological samples by Cold Atmospheric Plasmas (CAPs). Moreover, plasma-air interactions have to be particularly considered since these CAPs propagate in the ambient air. Herein, we developed a helium-based CAP setup equipped with a shielding-gas device, which allows the control of plasma-air interactions. Thanks to this device, we obtained specific diffuse CAPs, with the ability to propagate along several centimetres in the ambient air at atmospheric pressure. Optical Emission Spectroscopy (OES) measurements were performed on these CAPs during their interaction with a liquid medium (phosphate-buffered saline PBS 10 mM, pH 7.4) giving valuable information about the induced chemistry as a function of the shielding gas composition (variable O2/(O2 + N2) ratio). Several excited species were detected including N2+(First Negative System, FNS), N2(Second Positive System, SPS) and HO˙ radical. The ratios between nitrogen/oxygen excited species strongly depend on the O2/(O2 + N2) ratio. The liquid chemistry developed after CAP treatment was investigated by combining electrochemical and UV-visible absorption spectroscopy methods. We detected and quantified stable oxygen and nitrogen species (H2O2, NO2-, NO3-) along with Reactive Nitrogen Species (RNS) such as the peroxynitrite anion ONOO-. It appears that the RNS/ROS (Reactive Oxygen Species) ratio in the treated liquid depends also on the shielding gas composition. Eventually, the composition of the surrounding environment of CAPs seems to be crucial for the induced plasma chemistry and consequently, for the liquid chemistry. All these results demonstrate clearly that for physical, chemical and biomedical applications, which are usually achieved in ambient air environments, it is necessary to realize an effective control of plasma-air interactions.
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Affiliation(s)
- Fanny Girard
- UPPA, IPREM, CNRS UMR 5254, 2 Avenue Président Angot, 64000 Pau, France. and Univ. BORDEAUX, ISM, CNRS UMR 5255, NSysA Group, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac, France.
| | - Mathieu Peret
- UPPA, IPREM, CNRS UMR 5254, 2 Avenue Président Angot, 64000 Pau, France.
| | - Natacha Dumont
- UPPA, IPREM, CNRS UMR 5254, 2 Avenue Président Angot, 64000 Pau, France.
| | - Vasilica Badets
- Univ. BORDEAUX, ISM, CNRS UMR 5255, NSysA Group, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac, France.
| | - Sylvie Blanc
- UPPA, IPREM, CNRS UMR 5254, 2 Avenue Président Angot, 64000 Pau, France.
| | - Kristaq Gazeli
- UPPA, IPREM, CNRS UMR 5254, 2 Avenue Président Angot, 64000 Pau, France.
| | - Cédric Noël
- Univ. Lorraine, CNRS UMR 7198, Institut Jean Lamour, Site Artem, CS 50840, 54011 Nancy Cedex, France
| | - Thierry Belmonte
- Univ. Lorraine, CNRS UMR 7198, Institut Jean Lamour, Site Artem, CS 50840, 54011 Nancy Cedex, France
| | - Laurent Marlin
- UPPA, Atelier de Physique, Avenue de l'université, BP1155, 64013 Pau Cedex, France
| | - Jean-Pierre Cambus
- Univ. Paul Sabatier, Hopital Rangueil, Laboratoire Hématologie, Bât L2, 1 Avenue du Professeur Jean Poulhès, TSA 50032, 31059 Toulouse Cedex 9, France
| | - Guillaume Simon
- UPPA, IPREM, CNRS UMR 5254, 2 Avenue Président Angot, 64000 Pau, France.
| | - Neso Sojic
- Univ. BORDEAUX, ISM, CNRS UMR 5255, NSysA Group, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac, France.
| | | | - Stéphane Arbault
- Univ. BORDEAUX, ISM, CNRS UMR 5255, NSysA Group, ENSCBP, 16 Avenue Pey Berland, 33607 Pessac, France.
| | - Franck Clément
- UPPA, IPREM, CNRS UMR 5254, 2 Avenue Président Angot, 64000 Pau, France.
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Sarangapani C, Patange A, Bourke P, Keener K, Cullen P. Recent Advances in the Application of Cold Plasma Technology in Foods. Annu Rev Food Sci Technol 2018; 9:609-629. [DOI: 10.1146/annurev-food-030117-012517] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Apurva Patange
- BioPlasma Research Group, Dublin Institute of Technology, Dublin, Ireland
| | - Paula Bourke
- BioPlasma Research Group, Dublin Institute of Technology, Dublin, Ireland
| | - Kevin Keener
- Center for Crop Utilization Research, Iowa State University, Ames, Iowa 50011, USA
| | - P.J. Cullen
- BioPlasma Research Group, Dublin Institute of Technology, Dublin, Ireland
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
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Metelmann HR, Seebauer C, Miller V, Fridman A, Bauer G, Graves DB, Pouvesle JM, Rutkowski R, Schuster M, Bekeschus S, Wende K, Masur K, Hasse S, Gerling T, Hori M, Tanaka H, Ha Choi E, Weltmann KD, Metelmann PH, Von Hoff DD, Woedtke TV. Clinical experience with cold plasma in the treatment of locally advanced head and neck cancer. CLINICAL PLASMA MEDICINE 2018. [DOI: 10.1016/j.cpme.2017.09.001] [Citation(s) in RCA: 190] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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75
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Bekeschus S, Brüggemeier J, Hackbarth C, Weltmann KD, von Woedtke T, Partecke LI, van der Linde J. The feed gas composition determines the degree of physical plasma-induced platelet activation for blood coagulation. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1361-6595/aaaf0e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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76
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Schmidt A, Bekeschus S, Wende K, Vollmar B, von Woedtke T. A cold plasma jet accelerates wound healing in a murine model of full-thickness skin wounds. Exp Dermatol 2018; 26:156-162. [PMID: 27492871 DOI: 10.1111/exd.13156] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/12/2016] [Indexed: 12/24/2022]
Abstract
Cold plasma has been successfully applied in several fields of medicine that require, for example, pathogen inactivation, implant functionalization or alteration of cellular activity. Previous studies have provided evidence that plasma supports the healing of wounds owing to its beneficial mixtures of reactive species and modulation of inflammation in cells and tissues. To investigate the wound healing activity of an atmospheric pressure plasma jet in vivo, we examined the cold plasma's efficacy on dermal regeneration in a murine model of dermal full-thickness ear wound. Over 14 days, female mice received daily plasma treatment. Quantitative analysis by transmitted light microscopy demonstrated a significantly accelerated wound re-epithelialization at days 3-9 in comparison with untreated controls. In vitro, cold plasma altered keratinocyte and fibroblast migration, while both cell types showed significant stimulation resulting in accelerated closure of gaps in scratch assays. This plasma effect correlated with the downregulation of the gap junctional protein connexin 43 which is thought to be important in the regulation of wound healing. In addition, plasma induced profound changes in adherence junctions and cytoskeletal dynamics as shown by downregulation of E-cadherin and several integrins as well as actin reorganization. Our results theorize cold plasma to be a beneficial treatment option supplementing existing wound therapies.
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Affiliation(s)
- Anke Schmidt
- Plasma Life Science, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | - Sander Bekeschus
- ZIK Plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | - Kristian Wende
- ZIK Plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, University of Rostock, Rostock, Germany
| | - Thomas von Woedtke
- Plasma Life Science, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany.,ZIK Plasmatis, Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany.,Department of Hygiene and Environmental Medicine, University Medicine Greifswald, Greifswald, Germany
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77
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Yoon YJ, Suh MJ, Lee HY, Lee HJ, Choi EH, Moon IS, Song K. Anti-tumor effects of cold atmospheric pressure plasma on vestibular schwannoma demonstrate its feasibility as an intra-operative adjuvant treatment. Free Radic Biol Med 2018; 115:43-56. [PMID: 29138018 DOI: 10.1016/j.freeradbiomed.2017.11.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/07/2017] [Accepted: 11/10/2017] [Indexed: 12/12/2022]
Abstract
Vestibular schwannoma (VS), although a benign intracranial tumor, causes morbidities by brainstem compression. Since chemotherapy is not very effective in most Nf2-negative schwannomas, surgical removal or radiation therapy is required. However, depending on the size and site of the tumor, these approaches may cause loss of auditory or vestibular functions, and severely decrease the post-surgical wellbeing. Here, we examined the feasibility of cold atmospheric pressure plasma (CAP) as an intra-operative adjuvant treatment for VS after surgery. Cell death was efficiently induced in both human HEI-193 and mouse SC4 VS cell lines upon exposure to CAP for seven minutes. Interestingly, both apoptosis and necroptosis were simultaneously induced by CAP treatment, and cell death was not completely inhibited by pan-caspase and receptor-interacting serine/threonine-protein kinase 1 (RIK1) inhibitors. Upon CAP exposure, cell death phenotype was similarly observed in patient-derived primary VS cells and tumor mass. In addition, CAP exposure after the surgical removal of primary tumor efficiently inhibited tumor recurrence in SC4-grafted mouse models. Collectively, these results strongly suggest that CAP should be developed as an efficient adjuvant treatment for VS after surgery to eliminate the possible remnant tumor cells, and to minimize the surgical area in the brain for post-surgical wellbeing.
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Affiliation(s)
- Yeo Jun Yoon
- Department of Biochemistry, College of Life Science & Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Michelle J Suh
- Department of Otorhinolaryngology, College of Medicine, Yonsei University, Seoul 03722, Korea
| | - Hyun Young Lee
- Department of Electrical Engineering, Pusan National University, Pusan 46269, Korea
| | - Hae June Lee
- Department of Electrical Engineering, Pusan National University, Pusan 46269, Korea
| | - Eun Ha Choi
- Plasma Bioscience Research Center and Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Korea
| | - In Seok Moon
- Department of Otorhinolaryngology, College of Medicine, Yonsei University, Seoul 03722, Korea.
| | - Kiwon Song
- Department of Biochemistry, College of Life Science & Biotechnology, Yonsei University, Seoul 03722, Korea.
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78
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Bekeschus S, Brüggemeier J, Hackbarth C, von Woedtke T, Partecke LI, van der Linde J. Platelets are key in cold physical plasma-facilitated blood coagulation in mice. CLINICAL PLASMA MEDICINE 2017. [DOI: 10.1016/j.cpme.2017.10.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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79
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Sato Y, Yamada S, Takeda S, Hattori N, Nakamura K, Tanaka H, Mizuno M, Hori M, Kodera Y. Effect of Plasma-Activated Lactated Ringer's Solution on Pancreatic Cancer Cells In Vitro and In Vivo. Ann Surg Oncol 2017; 25:299-307. [PMID: 29139022 DOI: 10.1245/s10434-017-6239-y] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND The medical applications of nonequilibrium atmospheric pressure plasma in cancer therapy have attracted attention. We previously reported on the antitumor effect of plasma-activated medium. However, this approach requires plasma-activated liquids that are administrable to the human body. In this study, we produced plasma-activated lactated Ringer's solution (PAL) and evaluated its antitumor effect and mechanism. Furthermore, we evaluated the effect of the intraperitoneal administration of PAL using a peritoneal dissemination mouse tumor model. METHODS The antitumor effect of PAL on pancreatic cancer cell lines was evaluated using proliferation and apoptosis assays. In addition, cellular reactive oxygen species (ROS) generation was examined. The role of ROS was assessed using a proliferation assay with N-acetyl cysteine (NAC). An adhesion assay was performed to evaluate the effect of PAL on cell adhesion. Finally, pancreatic cancer cells stably expressing luciferase (AsPC-1/CMV-Luc) were injected intraperitoneally into mice, followed by intraperitoneal injection of PAL. Peritoneal dissemination was monitored using in vivo bioluminescent imaging. RESULTS The antitumor effect of PAL was shown in all cell lines in vitro. The TUNEL assay showed that PAL induced apoptosis. ROS uptake was observed in PAL-treated cells, and the antitumor effect was inhibited by NAC. Cell adhesion also was suppressed by PAL. The intraperitoneal administration of PAL suppressed the formation of peritoneal nodules in vivo. CONCLUSIONS Our study demonstrated the antitumor effects of PAL in vitro and in vivo. Intraperitoneal administration of PAL may be a novel therapeutic option for peritoneal metastases.
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Affiliation(s)
- Yusuke Sato
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Suguru Yamada
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
| | - Shigeomi Takeda
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Norifumi Hattori
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Kae Nakamura
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiromasa Tanaka
- Center for Advanced Medicine and Clinical Research, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaaki Mizuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaru Hori
- Plasma Nanotechnology Research Center, Nagoya University, Nagoya, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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80
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Gümbel D, Bekeschus S, Gelbrich N, Napp M, Ekkernkamp A, Kramer A, Stope MB. Cold Atmospheric Plasma in the Treatment of Osteosarcoma. Int J Mol Sci 2017; 18:ijms18092004. [PMID: 28925941 PMCID: PMC5618653 DOI: 10.3390/ijms18092004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 09/09/2017] [Accepted: 09/14/2017] [Indexed: 01/08/2023] Open
Abstract
Human osteosarcoma (OS) is the most common primary malignant bone tumor occurring most commonly in adolescents and young adults. Major improvements in disease-free survival have been achieved by implementing a combination therapy consisting of radical surgical resection of the tumor and systemic multi-agent chemotherapy. However, long-term survival remains poor, so novel targeted therapies to improve outcomes for patients with osteosarcoma remains an area of active research. This includes immunotherapy, photodynamic therapy, or treatment with nanoparticles. Cold atmospheric plasma (CAP), a highly reactive (partially) ionized physical state, has been shown to inherit a significant anticancer capacity, leading to a new field in medicine called “plasma oncology.” The current article summarizes the potential of CAP in the treatment of human OS and reviews the underlying molecular mode of action.
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Affiliation(s)
- Denis Gümbel
- Department of Trauma, Reconstructive Surgery and Rehabilitation Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, 17475 Greifswald, Germany.
- Department of Trauma and Orthopaedic Surgery, BG Klinikum Unfallkrankenhaus Berlin gGmbH, Warener Str. 7, 12683 Berlin, Germany.
| | - Sander Bekeschus
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald), ZIK plasmatis, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Nadine Gelbrich
- Department of Trauma, Reconstructive Surgery and Rehabilitation Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, 17475 Greifswald, Germany.
| | - Matthias Napp
- Department of Trauma, Reconstructive Surgery and Rehabilitation Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, 17475 Greifswald, Germany.
| | - Axel Ekkernkamp
- Department of Trauma, Reconstructive Surgery and Rehabilitation Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, 17475 Greifswald, Germany.
- Department of Trauma and Orthopaedic Surgery, BG Klinikum Unfallkrankenhaus Berlin gGmbH, Warener Str. 7, 12683 Berlin, Germany.
| | - Axel Kramer
- Department of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany.
| | - Matthias B Stope
- Department of Urology, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, 17475 Greifswald, Germany.
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81
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Liedtke KR, Bekeschus S, Kaeding A, Hackbarth C, Kuehn JP, Heidecke CD, von Bernstorff W, von Woedtke T, Partecke LI. Non-thermal plasma-treated solution demonstrates antitumor activity against pancreatic cancer cells in vitro and in vivo. Sci Rep 2017; 7:8319. [PMID: 28814809 PMCID: PMC5559449 DOI: 10.1038/s41598-017-08560-3] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 07/06/2017] [Indexed: 01/05/2023] Open
Abstract
Pancreatic cancer is associated with a high mortality rate. In advanced stage, patients often experience peritoneal carcinomatosis. Using a syngeneic murine pancreatic cancer cell tumor model, the effect of non-thermal plasma (NTP) on peritoneal metastatic lesions was studied. NTP generates reactive species of several kinds which have been proven to be of relevance in cancer. In vitro, exposure to both plasma and plasma-treated solution significantly decreased cell viability and proliferation of 6606PDA cancer cells, whereas mouse fibroblasts were less affected. Repeated intraperitoneal treatment of NTP-conditioned medium decreased tumor growth in vivo as determined by magnetic resonance imaging, leading to reduced tumor mass and improved median survival (61 vs 52 days; p < 0.024). Tumor nodes treated by NTP-conditioned medium demonstrated large areas of apoptosis with strongly inhibited cell proliferation. Contemporaneously, no systemic effects were found. Apoptosis was neither present in the liver nor in the gut. Also, the concentration of different cytokines in splenocytes or blood plasma as well as the distribution of various hematological parameters remained unchanged following treatment with NTP-conditioned medium. These results suggest an anticancer role of NTP-treated solutions with little to no systemic side effects being present, making NTP-treated solutions a potential complementary therapeutic option for advanced tumors.
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Affiliation(s)
- Kim Rouven Liedtke
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - Sander Bekeschus
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald), ZIK plasmatis, Felix-Hausdorff-Strasse 2, 17489, Greifswald, Germany
| | - André Kaeding
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - Christine Hackbarth
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - Jens-Peter Kuehn
- Department of Experimental Radiology, University Medicine Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - Claus-Dieter Heidecke
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - Wolfram von Bernstorff
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany
| | - Thomas von Woedtke
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald), ZIK plasmatis, Felix-Hausdorff-Strasse 2, 17489, Greifswald, Germany.,Department of Hygiene and Environmental Medicine, University Medicine Greifswald, 17475, Greifswald, Germany
| | - Lars Ivo Partecke
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine Greifswald, Sauerbruchstrasse, 17475, Greifswald, Germany.
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82
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Schmidt A, Bekeschus S, Jablonowski H, Barton A, Weltmann KD, Wende K. Role of Ambient Gas Composition on Cold Physical Plasma-Elicited Cell Signaling in Keratinocytes. Biophys J 2017; 112:2397-2407. [PMID: 28591612 DOI: 10.1016/j.bpj.2017.04.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/10/2017] [Accepted: 04/24/2017] [Indexed: 01/22/2023] Open
Abstract
A particularly promising medical application of cold physical plasma is the support of wound healing. This is presumably achieved by modulating inflammation as well as skin cell signaling and migration. Plasma-derived reactive oxygen and nitrogen species (ROS/RNS) are assumed the central biologically active plasma components. We hypothesized that modulating the environmental plasma conditions from pure nitrogen (N2) to pure oxygen (O2) in an atmospheric pressure argon plasma jet (kINPen) will change type and concentration of ROS/RNS and effectively tune the behavior of human skin cells. To investigate this, HaCaT keratinocytes were studied in vitro with regard to cell metabolism, viability, growth, gene expression signature, and cytokine secretion. Flow cytometry demonstrated only slight effects on cytotoxicity. O2 shielding provided stronger apoptotic effects trough caspase-3 activation compared to N2 shielding. Gene array technology revealed induction of signaling and communication proteins such as immunomodulatory interleukin 6 as well as antioxidative and proproliferative molecules (HMOX1, VEGFA, HBEGF, CSF2, and MAPK) in response to different plasma shielding gas compositions. Cell response was correlated to reactive species: oxygen-shielding plasma induces a cell response more efficiently despite an apparent decrease of hydrogen peroxide (H2O2), which was previously shown to be a major player in plasma-cell regulation, emphasizing the role of non-H2O2 ROS like singlet oxygen. Our results suggest differential effects of ROS- and RNS-rich plasma, and may have a role in optimizing clinical plasma applications in chronic wounds.
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Affiliation(s)
- Anke Schmidt
- Plasma Life Science, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany.
| | - Sander Bekeschus
- Center for Innovation Competence (ZIK) Plasmatis, Greifswald, Germany
| | | | - Annemarie Barton
- Center for Innovation Competence (ZIK) Plasmatis, Greifswald, Germany
| | - Klaus-Dieter Weltmann
- Plasma Life Science, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany; Center for Innovation Competence (ZIK) Plasmatis, Greifswald, Germany
| | - Kristian Wende
- Center for Innovation Competence (ZIK) Plasmatis, Greifswald, Germany
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83
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Xu L, Garner AL, Tao B, Keener KM. Microbial Inactivation and Quality Changes in Orange Juice Treated by High Voltage Atmospheric Cold Plasma. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-1947-7] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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84
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Graves DB. Mechanisms of Plasma Medicine: Coupling Plasma Physics, Biochemistry, and Biology. IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES 2017. [DOI: 10.1109/trpms.2017.2710880] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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85
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Bekeschus S, Rödder K, Fregin B, Otto O, Lippert M, Weltmann KD, Wende K, Schmidt A, Gandhirajan RK. Toxicity and Immunogenicity in Murine Melanoma following Exposure to Physical Plasma-Derived Oxidants. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:4396467. [PMID: 28761621 PMCID: PMC5518506 DOI: 10.1155/2017/4396467] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/04/2017] [Indexed: 02/07/2023]
Abstract
Metastatic melanoma is an aggressive and deadly disease. Therapeutic advance has been achieved by antitumor chemo- and radiotherapy. These modalities involve the generation of reactive oxygen and nitrogen species, affecting cellular viability, migration, and immunogenicity. Such species are also created by cold physical plasma, an ionized gas capable of redox modulating cells and tissues without thermal damage. Cold plasma has been suggested for anticancer therapy. Here, melanoma cell toxicity, motility, and immunogenicity of murine metastatic melanoma cells were investigated following plasma exposure in vitro. Cells were oxidized by plasma, leading to decreased metabolic activity and cell death. Moreover, plasma decelerated melanoma cell growth, viability, and cell cycling. This was accompanied by increased cellular stiffness and upregulation of zonula occludens 1 protein in the cell membrane. Importantly, expression levels of immunogenic cell surface molecules such as major histocompatibility complex I, calreticulin, and melanocortin receptor 1 were significantly increased in response to plasma. Finally, plasma treatment significantly decreased the release of vascular endothelial growth factor, a molecule with importance in angiogenesis. Altogether, these results suggest beneficial toxicity of cold plasma in murine melanomas with a concomitant immunogenicity of potential interest in oncology.
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Affiliation(s)
- Sander Bekeschus
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Katrin Rödder
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Bob Fregin
- ZIK HIKE, Fleischmannstr. 42-44, 17489 Greifswald, Germany
| | - Oliver Otto
- ZIK HIKE, Fleischmannstr. 42-44, 17489 Greifswald, Germany
| | - Maxi Lippert
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Klaus-Dieter Weltmann
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Kristian Wende
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Anke Schmidt
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Rajesh Kumar Gandhirajan
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
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86
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Bekeschus S, Wende K, Hefny MM, Rödder K, Jablonowski H, Schmidt A, Woedtke TV, Weltmann KD, Benedikt J. Oxygen atoms are critical in rendering THP-1 leukaemia cells susceptible to cold physical plasma-induced apoptosis. Sci Rep 2017; 7:2791. [PMID: 28584285 PMCID: PMC5459849 DOI: 10.1038/s41598-017-03131-y] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 04/25/2017] [Indexed: 12/12/2022] Open
Abstract
Cold physical plasma has been suggested as a powerful new tool in oncology. However, some cancer cells such as THP-1 leukaemia cells have been shown to be resistant towards plasma-induced cell death, thereby serving as a good model for optimizing plasmas in order to foster pro-apoptotic anticancer effects. A helium/oxygen radio frequency driven atmospheric plasma profoundly induced apoptosis in THP-1 cells whereas helium, humidified helium, and humidified helium/oxygen plasmas were inefficient. Hydrogen peroxide – previously shown as central plasma-derived agent – did not participate in the killing reaction but our results suggest hypochlorous acid to be responsible for the effect observed. Proteomic analysis of THP-1 cells exposed to He/O2 plasma emphasized a prominent growth retardation, cell stress, apoptosis, and a pro-immunogenic profile. Altogether, a plasma setting that inactivates previously unresponsive leukaemia cells is presented. Crucial reactive species in the plasma and liquid environment were identified and discussed, deciphering the complexity of plasma from the gas phase into the liquid down to the cellular response mechanism. These results may help tailoring plasmas for clinical applications such as oxidation-insensitive types of cancer.
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Affiliation(s)
- Sander Bekeschus
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald) ZIK plasmatis, Greifswald, Germany.
| | - Kristian Wende
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald) ZIK plasmatis, Greifswald, Germany
| | - Mohamed Mokhtar Hefny
- Coupled Plasma-Solid State Systems, Faculty of Physics and Astronomy, Ruhr University Bochum, Bochum, Germany.,Basic Science Department, Faculty of Engineering and Technology, Future University in Egypt, Cairo, Egypt
| | - Katrin Rödder
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald) ZIK plasmatis, Greifswald, Germany
| | - Helena Jablonowski
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald) ZIK plasmatis, Greifswald, Germany
| | - Anke Schmidt
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald) ZIK plasmatis, Greifswald, Germany
| | - Thomas von Woedtke
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald) ZIK plasmatis, Greifswald, Germany.,Institute for Hygiene and Environmental Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Klaus-Dieter Weltmann
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald) ZIK plasmatis, Greifswald, Germany
| | - Jan Benedikt
- Coupled Plasma-Solid State Systems, Faculty of Physics and Astronomy, Ruhr University Bochum, Bochum, Germany
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87
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Nasruddin, Putri IK, Kamal S, Esti Rahayu HS, Lutfiyati H, Pribadi P, Kusuma TM, Muhlisin Z, Nur M, Nurani LH, Santosa B, Ishijima T, Nakatani T. Evaluation the effectiveness of combinative treatment of cold plasma jet, Indonesian honey, and micro-well dressing to accelerate wound healing. CLINICAL PLASMA MEDICINE 2017. [DOI: 10.1016/j.cpme.2017.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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88
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Schmidt A, Woedtke TV, Stenzel J, Lindner T, Polei S, Vollmar B, Bekeschus S. One Year Follow-Up Risk Assessment in SKH-1 Mice and Wounds Treated with an Argon Plasma Jet. Int J Mol Sci 2017; 18:E868. [PMID: 28422070 PMCID: PMC5412449 DOI: 10.3390/ijms18040868] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 04/11/2017] [Accepted: 04/12/2017] [Indexed: 12/25/2022] Open
Abstract
Multiple evidence in animal models and in humans suggest a beneficial role of cold physical plasma in wound treatment. Yet, risk assessment studies are important to further foster therapeutic advancement and acceptance of cold plasma in clinics. Accordingly, we investigated the longterm side effects of repetitive plasma treatment over 14 consecutive days in a rodent full-thickness ear wound model. Subsequently, animals were housed for 350 days and sacrificed thereafter. In blood, systemic changes of the proinflammatory cytokines interleukin 1β and tumor necrosis factor α were absent. Similarly, tumor marker levels of α-fetoprotein and calcitonin remained unchanged. Using quantitative PCR, the expression levels of several cytokines and tumor markers in liver, lung, and skin were found to be similar in the control and treatment group as well. Likewise, histological and immunohistochemical analysis failed to detect abnormal morphological changes and the presence of tumor markers such as carcinoembryonic antigen, α-fetoprotein, or the neighbor of Punc11. Absence of neoplastic lesions was confirmed by non-invasive imaging methods such as anatomical magnetic resonance imaging and positron emission tomography-computed tomography. Our results suggest that the beneficial effects of cold plasma in wound healing come without apparent side effects including tumor formation or chronic inflammation.
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Affiliation(s)
- Anke Schmidt
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Departments of Plasma Life Science and ZIK Plasmatis, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Thomas von Woedtke
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Departments of Plasma Life Science and ZIK Plasmatis, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
- Department of Hygiene and Environmental Medicine, University Medicine Greifswald, 17475 Greifswald, Germany.
| | - Jan Stenzel
- Core Facility Multimodal Small Animal Imaging, 18057 Rostock, Germany.
| | - Tobias Lindner
- Core Facility Multimodal Small Animal Imaging, 18057 Rostock, Germany.
| | - Stefan Polei
- Core Facility Multimodal Small Animal Imaging, 18057 Rostock, Germany.
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, Schillingallee 69a, 18057 Rostock, Germany.
| | - Sander Bekeschus
- Leibniz-Institute for Plasma Science and Technology (INP Greifswald), Departments of Plasma Life Science and ZIK Plasmatis, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
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89
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Lunov O, Zablotskii V, Churpita O, Lunova M, Jirsa M, Dejneka A, Kubinová Š. Chemically different non-thermal plasmas target distinct cell death pathways. Sci Rep 2017; 7:600. [PMID: 28377599 PMCID: PMC5428849 DOI: 10.1038/s41598-017-00689-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 03/08/2017] [Indexed: 02/07/2023] Open
Abstract
A rigorous biochemical analysis of interactions between non-thermal plasmas (NTPs) and living cells has become an important research topic, due to recent developments in biomedical applications of non-thermal plasmas. Here, we decouple distinct cell death pathways targeted by chemically different NTPs. We show that helium NTP cells treatment, results in necrosome formation and necroptosis execution, whereas air NTP leads to mTOR activation and autophagy inhibition, that induces mTOR-related necrosis. On the contrary, ozone (abundant component of air NTP) treatment alone, exhibited the highest levels of reactive oxygen species production leading to CypD-related necrosis via the mitochondrial permeability transition. Our findings offer a novel insight into plasma-induced cellular responses, and reveal distinct cell death pathways triggered by NTPs.
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Affiliation(s)
- Oleg Lunov
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic.
| | - Vitalii Zablotskii
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Olexander Churpita
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Mariia Lunova
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Šárka Kubinová
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic.,Institute of Experimental Medicine AS CR, Prague, 14220, Czech Republic
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90
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Synergistic Effect of Atmospheric-pressure Plasma and TiO 2 Photocatalysis on Inactivation of Escherichia coli Cells in Aqueous Media. Sci Rep 2016; 6:39552. [PMID: 28004829 PMCID: PMC5177875 DOI: 10.1038/srep39552] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/23/2016] [Indexed: 11/08/2022] Open
Abstract
Atmospheric-pressure plasma and TiO2 photocatalysis have been widely investigated separately for the management and reduction of microorganisms in aqueous solutions. In this paper, the two methods were combined in order to achieve a more profound understanding of their interactions in disinfection of water contaminated by Escherichia coli. Under water discharges carried out by microplasma jet arrays can result in a rapid inactivation of E. coli cells. The inactivation efficiency is largely dependent on the feed gases used, the plasma treatment time, and the discharge power. Compared to atmospheric-pressure N2, He and air microplasma arrays, O2 microplasma had the highest activity against E. coli cells in aqueous solution, and showed >99.9% bacterial inactivation efficiency within 4 min. Addition of TiO2 photocatalytic film to the plasma discharge reactor significantly enhanced the inactivation efficiency of the O2 microplasma system, decreasing the time required to achieve 99.9% killing of E. coli cells to 1 min. This may be attributed to the enhancement of ROS generation due to high catalytic activity and stability of the TiO2 photocatalyst in the combined plasma-TiO2 systems. Present work demonstrated the synergistic effect of the two agents, which can be correlated in order to maximize treatment efficiency.
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91
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Kluge S, Bekeschus S, Bender C, Benkhai H, Sckell A, Below H, Stope MB, Kramer A. Investigating the Mutagenicity of a Cold Argon-Plasma Jet in an HET-MN Model. PLoS One 2016; 11:e0160667. [PMID: 27584003 PMCID: PMC5008819 DOI: 10.1371/journal.pone.0160667] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 07/24/2016] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE So-called cold physical plasmas for biomedical applications generate reactive oxygen and nitrogen species and the latter can trigger DNA damage at high concentrations. Therefore, the mutagenic risks of a certified atmospheric pressure argon plasma jet (kINPen MED) and its predecessor model (kINPen 09) were assessed. METHODS Inner egg membranes of fertilized chicken eggs received a single treatment with either the kINPen 09 (1.5, 2.0, or 2.5 min) or the kINPen MED (3, 4, 5, or 10 min). After three days of incubation, blood smears (panoptic May-Grünwald-Giemsa stain) were performed, and 1000 erythrocytes per egg were evaluated for the presence of polychromatic and normochromic nuclear staining as well as nuclear aberrations and binucleated cells (hen's egg test for micronuclei induction, HET-MN). At the same time, the embryo mortality was documented. For each experiment, positive controls (cyclophosphamide and methotrexate) and negative controls (NaCl-solution, argon gas) were included. Additionally, the antioxidant potential of the blood plasma was assessed by ascorbic acid oxidation assay after treatment. RESULTS For both plasma sources, there was no evidence of genotoxicity, although at the longest plasma exposure time of 10 min the mortality of the embryos exceeded 40%. The antioxidant potential in the egg's blood plasma was not significantly reduced immediately (p = 0.32) or 1 h (p = 0.19) post exposure to cold plasma. CONCLUSION The longest plasma treatment time with the kINPen MED was 5-10 fold above the recommended limit for treatment of chronic wounds in clinics. We did not find mutagenic effects for any plasma treatment time using the either kINPen 09 or kINPen MED. The data provided with the current study seem to confirm the lack of a genotoxic potential suggesting that a veterinary or clinical application of these argon plasma jets does not pose mutagenic risks.
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Affiliation(s)
- Susanne Kluge
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Sander Bekeschus
- Leibniz-Institute for Plasma Science and Technology, ZIK plasmatis, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
- * E-mail:
| | - Claudia Bender
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Hicham Benkhai
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Axel Sckell
- Department of Trauma and Reconstructive Surgery, University Medicine Greifswald, Sauerbruchstr., 17475 Greifswald, Germany
| | - Harald Below
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Matthias B. Stope
- Department of Urology, University Medicine Greifswald, Sauerbruchstr., 17475 Greifswald, Germany
| | - Axel Kramer
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
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92
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Zhou R, Zhou R, Zhang X, Zhuang J, Yang S, Bazaka K, Ken Ostrikov K. Effects of Atmospheric-Pressure N2, He, Air, and O2 Microplasmas on Mung Bean Seed Germination and Seedling Growth. Sci Rep 2016; 6:32603. [PMID: 27584560 PMCID: PMC5007987 DOI: 10.1038/srep32603] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 08/10/2016] [Indexed: 01/25/2023] Open
Abstract
Atmospheric-pressure N2, He, air, and O2 microplasma arrays have been used to investigate the effects of plasma treatment on seed germination and seedling growth of mung bean in aqueous solution. Seed germination and growth of mung bean were found to strongly depend on the feed gases used to generate plasma and plasma treatment time. Compared to the treatment with atmospheric-pressure O2, N2 and He microplasma arrays, treatment with air microplasma arrays was shown to be more efficient in improving both the seed germination rate and seedling growth, the effect attributed to solution acidification and interactions with plasma-generated reactive oxygen and nitrogen species. Acidic environment caused by air discharge in water may promote leathering of seed chaps, thus enhancing the germination rate of mung bean, and stimulating the growth of hypocotyl and radicle. The interactions between plasma-generated reactive species, such as hydrogen peroxide (H2O2) and nitrogen compounds, and seeds led to a significant acceleration of seed germination and an increase in seedling length of mung bean. Electrolyte leakage rate of mung bean seeds soaked in solution activated using air microplasma was the lowest, while the catalase activity of thus-treated mung bean seeds was the highest compared to other types of microplasma.
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Affiliation(s)
- Renwu Zhou
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland 4000, Australia.,Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics Science and Technology, Xiamen University, Xiamen 361005, China
| | - Rusen Zhou
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xianhui Zhang
- Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics Science and Technology, Xiamen University, Xiamen 361005, China
| | - Jinxing Zhuang
- Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics Science and Technology, Xiamen University, Xiamen 361005, China
| | - Size Yang
- Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics Science and Technology, Xiamen University, Xiamen 361005, China
| | - Kateryna Bazaka
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland 4000, Australia.,CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organisation, P. O. Box 218, Lindfield, NSW 2070, Australia
| | - Kostya Ken Ostrikov
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland 4000, Australia.,CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organisation, P. O. Box 218, Lindfield, NSW 2070, Australia
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93
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Synergistic Effect of H2O2 and NO2 in Cell Death Induced by Cold Atmospheric He Plasma. Sci Rep 2016; 6:29098. [PMID: 27364563 PMCID: PMC4929573 DOI: 10.1038/srep29098] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/09/2016] [Indexed: 02/07/2023] Open
Abstract
Cold atmospheric pressure plasmas (CAPPs) have emerged over the last decade as a new promising therapy to fight cancer. CAPPs’ antitumor activity is primarily due to the delivery of reactive oxygen and nitrogen species (RONS), but the precise determination of the constituents linked to this anticancer process remains to be done. In the present study, using a micro-plasma jet produced in helium (He), we demonstrate that the concentration of H2O2, NO2− and NO3− can fully account for the majority of RONS produced in plasma-activated buffer. The role of these species on the viability of normal and tumour cell lines was investigated. Although the degree of sensitivity to H2O2 is cell-type dependent, we show that H2O2 alone cannot account for the toxicity of He plasma. Indeed, NO2−, but not NO3−, acts in synergy with H2O2 to enhance cell death in normal and tumour cell lines to a level similar to that observed after plasma treatment. Our findings suggest that the efficiency of plasma treatment strongly depends on the combination of H2O2 and NO2− in determined concentrations. We also show that the interaction of the He plasma jet with the ambient air is required to generate NO2− and NO3− in solution.
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94
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The application of cold atmospheric plasma in medicine: The potential role of nitric oxide in plasma-induced effects. CLINICAL PLASMA MEDICINE 2016. [DOI: 10.1016/j.cpme.2016.05.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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95
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Zhou R, Zhou R, Zhuang J, Zong Z, Zhang X, Liu D, Bazaka K, Ostrikov K. Interaction of Atmospheric-Pressure Air Microplasmas with Amino Acids as Fundamental Processes in Aqueous Solution. PLoS One 2016; 11:e0155584. [PMID: 27183129 PMCID: PMC4868320 DOI: 10.1371/journal.pone.0155584] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 05/02/2016] [Indexed: 12/02/2022] Open
Abstract
Plasma medicine is a relatively new field that investigates potential applications of cold atmospheric-pressure plasmas in bioengineering, such as for bacterial inactivation and degradation of organic molecules in water. In order to enunciate mechanisms of bacterial inactivation at molecular or atomic levels, we investigated the interaction of atmospheric-pressure air microplasmas with amino acids in aqueous solution by using high-resolution mass spectrometry (HRMS). Results show that the oxidation effect of plasma-induced species on the side chains of the amino acids can be categorized into four types, namely hydroxylation, nitration, dehydrogenation and dimerization. In addition, relative activities of amino acids resulting from plasma treatment come in descending order as follows: sulfur-containing carbon-chain amino acids > aromatic amino acids > five-membered ring amino acids > basic carbon-chain amino acids. Since amino acids are building blocks of proteins vital to the growth and reproduction of bacteria, these results provide an insight into the mechanism of bacterial inactivation by plasma.
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Affiliation(s)
- Renwu Zhou
- Liaoning Key Laboratory of Optoelectronic Films & Materials, School of Physics and Materials Engineering, Dalian Nationalities University, Dalian, 116600, China
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
- Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics and Mechanical & Electrical Engineering, Xiamen University, Xiamen, 361005, China
- CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organisation, P.O.Box 218, Lindfield, NSW, 2070, Australia
| | - Rusen Zhou
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jinxing Zhuang
- Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics and Mechanical & Electrical Engineering, Xiamen University, Xiamen, 361005, China
- School of Information Technology and Management, University of International Business and Economics, Beijing, 10000, China
| | - Zichao Zong
- Liaoning Key Laboratory of Optoelectronic Films & Materials, School of Physics and Materials Engineering, Dalian Nationalities University, Dalian, 116600, China
| | - Xianhui Zhang
- Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics and Mechanical & Electrical Engineering, Xiamen University, Xiamen, 361005, China
| | - Dongping Liu
- Liaoning Key Laboratory of Optoelectronic Films & Materials, School of Physics and Materials Engineering, Dalian Nationalities University, Dalian, 116600, China
- Fujian Key Laboratory for Plasma and Magnetic Resonance, School of Physics and Mechanical & Electrical Engineering, Xiamen University, Xiamen, 361005, China
- * E-mail:
| | - Kateryna Bazaka
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
- CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organisation, P.O.Box 218, Lindfield, NSW, 2070, Australia
| | - Kostya Ostrikov
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
- CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organisation, P.O.Box 218, Lindfield, NSW, 2070, Australia
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96
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Bekeschus S, Winterbourn CC, Kolata J, Masur K, Hasse S, Bröker BM, Parker HA. Neutrophil extracellular trap formation is elicited in response to cold physical plasma. J Leukoc Biol 2016; 100:791-799. [PMID: 26992432 DOI: 10.1189/jlb.3a0415-165rr] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 03/07/2016] [Indexed: 12/20/2022] Open
Abstract
Cold physical plasma is an ionized gas with a multitude of components, including hydrogen peroxide and other reactive oxygen and nitrogen species. Recent studies suggest that exposure of wounds to cold plasma may accelerate healing. Upon wounding, neutrophils are the first line of defense against invading microorganisms but have also been identified to play a role in delayed healing. In this study, we examined how plasma treatment affects the functions of peripheral blood neutrophils. Plasma treatment induced oxidative stress, as assessed by the oxidation of intracellular fluorescent redox probes; reduced metabolic activity; but did not induce early apoptosis. Neutrophil oxidative burst was only modestly affected after plasma treatment, and the killing of Pseudomonas aeruginosa and Staphylococcus aureus was not significantly affected. Intriguingly, we found that plasma induced profound extracellular trap formation. This was inhibited by the presence of catalase during plasma treatment but was not replicated by adding an equivalent concentration of hydrogen peroxide. Plasma-induced neutrophil extracellular trap formation was not dependent on the activity of myeloperoxidase or NADPH oxidase 2 but seemed to involve short-lived molecules. The amount of DNA release and the time course after plasma treatment were similar to that with the common neutrophil extracellular trap inducer PMA. After neutrophil extracellular traps had formed, concentrations of IL-8 were also significantly increased in supernatants of plasma-treated neutrophils. Both neutrophil extracellular traps and IL-8 release may aid antimicrobial activity and spur inflammation at the wound site. Whether this aids or exacerbates wound healing needs to be tested.
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Affiliation(s)
- Sander Bekeschus
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany; Institute of Immunology and Transfusion Medicine, Department of Immunology, University of Greifswald, Germany;
| | - Christine C Winterbourn
- Centre for Free Radical Research, Department of Pathology, University of Otago, Christchurch, New Zealand; and
| | - Julia Kolata
- University Medical Center Utrecht, Department of Medical Microbiology, University of Utrecht, The Netherlands
| | - Kai Masur
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany
| | - Sybille Hasse
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany
| | - Barbara M Bröker
- Institute of Immunology and Transfusion Medicine, Department of Immunology, University of Greifswald, Germany
| | - Heather A Parker
- Centre for Free Radical Research, Department of Pathology, University of Otago, Christchurch, New Zealand; and
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97
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Girard F, Badets V, Blanc S, Gazeli K, Marlin L, Authier L, Svarnas P, Sojic N, Clément F, Arbault S. Formation of reactive nitrogen species including peroxynitrite in physiological buffer exposed to cold atmospheric plasma. RSC Adv 2016. [DOI: 10.1039/c6ra12791f] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cold Atmospheric Plasmas (CAPs) are increasingly used for biomedical applications, their various reactive components must be then better determined. We demonstrate that peroxynitrite (ONOO−) is effectively a major reactive species generated by CAPs.
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Affiliation(s)
| | | | | | | | | | | | - Panagiotis Svarnas
- Univ. PATRAS
- High Voltage Laboratory
- Electrical and Computer Engineering Departement
- 26504 Rion-Patras
- Greece
| | - Neso Sojic
- Univ. BORDEAUX
- ISM
- CNRS UMR 5255
- NSysA group
- ENSCBP
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