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Gülses A, Dohrmann L, Aktas OC, Wagner J, Veziroglu S, Tjardts T, Hartig T, Liedtke KR, Wiltfang J, Acil Y, Flörke C. Decontaminative Properties of Cold Atmospheric Plasma Treatment on Collagen Membranes Used for Guided Bone Regeneration. J Funct Biomater 2023; 14:372. [PMID: 37504867 PMCID: PMC10381767 DOI: 10.3390/jfb14070372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023] Open
Abstract
Background cold atmospheric plasma (CAP) is known to be a surface-friendly yet antimicrobial and activating process for surfaces such as titanium. The aim of the present study was to describe the decontaminating effects of CAP on contaminated collagen membranes and their influence on the properties of this biomaterial in vitro. Material and Methods: A total of n = 18 Bio-Gide® (Geistlich Biomaterials, Baden-Baden, Germany) membranes were examined. The intervention group was divided as follows: n = 6 membranes were treated for one minute, and n = 6 membranes were treated for five minutes with CAP using kINPen® MED (neoplas tools GmbH, Greifswald, Germany) with an output of 5 W, respectively. A non-CAP-treated group (n = 6) served as the control. The topographic alterations were evaluated via X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Afterward, the samples were contaminated with E. faecalis for 6 days, and colony-forming unit (CFU) counts and additional SEM analyses were performed. The CFUs increased with CAP treatment time in our analyses, but SEM showed that the surface of the membranes was essentially free from bacteria. However, the deeper layers showed remaining microbial conglomerates. Furthermore, we showed, via XPS analysis, that increasing the CAP time significantly enhances the carbon (carbonyl group) concentration, which also correlates negatively with the decontaminating effects of CAP. Conclusions: Reactive carbonyl groups offer a potential mechanism for inhibiting the growth of E. faecalis on collagen membranes after cold atmospheric plasma treatment.
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Affiliation(s)
- Aydin Gülses
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Lina Dohrmann
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Oral Cenk Aktas
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Juliane Wagner
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Salih Veziroglu
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
- Kiel Nano, Surface and Interface Science KiNSIS, Kiel University, Christian Albrechts-Platz 4, 24118 Kiel, Germany
| | - Tim Tjardts
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Torge Hartig
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Kim Rouven Liedtke
- Department of Orthopedics, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Jörg Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Yahya Acil
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Christian Flörke
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
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Low temperature plasma suppresses proliferation, invasion, migration and survival of SK-BR-3 breast cancer cells. Mol Biol Rep 2023; 50:2025-2031. [PMID: 36538172 DOI: 10.1007/s11033-022-08026-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 10/10/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Low temperature plasma (LTP) is a developing field in recent years to play important roles of sterilization, material modification and wound healing. Breast cancer is a common gynecological malignant tumor. Recent studies have shown that LTP is a promising selective anti-cancer treatment. The effect of LTP on breast cancer is still unclear. In this study, We treated breast cancer cell lines with low temperature plasma for different periods of time and analyzed the relevant differences. METHODS AND RESULTS SK-BR-3 cell nutrient solution was firstly treated by ACP for 0, 10, 20, 40, 80 and 120 s, which was next used to cultivateSK-BR-3cells for overnight.we found that LTP was able to suppress cell vitality, proliferation, invasion and migration of SK-BR-3 cells. Also, SK-BR-3 apoptosis was induced by LTP in a time-dependent manner. CONCLUSION These evidences suggest the negative effect of LTP on malignant development of SK-BR-3 cells, and LTP has the potential clinical application for breast cancer treatment.
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Modulation of Inflammatory Responses by a Non-Invasive Physical Plasma Jet during Gingival Wound Healing. Cells 2022; 11:cells11172740. [PMID: 36078148 PMCID: PMC9454534 DOI: 10.3390/cells11172740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/22/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Gingival wound healing plays an important role in the treatment of a variety of inflammatory diseases. In some cases, however, wound healing is delayed by various endogenous or exogenous factors. In recent years, non-invasive physical plasma (NIPP), a highly reactive gas, has become the focus of research, because of its anti-inflammatory and wound healing-promoting efficacy. So far, since NIPP application has been poorly elucidated in dentistry, the aim of this study was to further investigate the effect of NIPP on various molecules associated with inflammation and wound healing in gingival cells. Human gingival fibroblasts (HGF) and human gingival keratinocytes (HGK) were treated with NIPP at different application times. Cell viability and cell morphology were assessed using DAPI/phalloidin staining. Cyclooxygenase (COX)2; tumour necrosis factor (TNF); CC Motif Chemokine Ligand (CCL)2; and interleukin (IL)1B, IL6 and IL8 were analysed at the mRNA and protein level by a real-time PCR and ELISA. NIPP did not cause any damage to the cells. Furthermore, NIPP led to a downregulation of proinflammatory molecules. Our study shows that NIPP application does not damage the gingival tissue and that the promotion of wound healing is also due to an anti-inflammatory component.
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Gangemi S, Petrarca C, Tonacci A, Di Gioacchino M, Musolino C, Allegra A. Cold Atmospheric Plasma Targeting Hematological Malignancies: Potentials and Problems of Clinical Translation. Antioxidants (Basel) 2022; 11:antiox11081592. [PMID: 36009311 PMCID: PMC9405440 DOI: 10.3390/antiox11081592] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/10/2022] [Accepted: 08/14/2022] [Indexed: 11/16/2022] Open
Abstract
Cold atmospheric plasma is an ionized gas produced near room temperature; it generates reactive oxygen species and nitrogen species and induces physical changes, including ultraviolet, radiation, thermal, and electromagnetic effects. Several studies showed that cold atmospheric plasma could effectively provoke death in a huge amount of cell types, including neoplastic cells, via the induction of apoptosis, necrosis, and autophagy. This technique seems able to destroy tumor cells by disturbing their more susceptible redox equilibrium with respect to normal cells, but it is also able to cause immunogenic cell death by enhancing the immune response, to decrease angiogenesis, and to provoke genetic and epigenetics mutations. Solutions activated by cold gas plasma represent a new modality for treatment of less easily reached tumors, or hematological malignancies. Our review reports on accepted knowledge of cold atmospheric plasma’s effect on hematological malignancies, such as acute and chronic myeloid leukemia and multiple myeloma. Although relevant progress was made toward understanding the underlying mechanisms concerning the efficacy of cold atmospheric plasma in hematological tumors, there is a need to determine both guidelines and safety limits that guarantee an absence of long-term side effects.
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Affiliation(s)
- Sebastiano Gangemi
- Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, School of Allergy and Clinical Immunology, University of Messina, 98125 Messina, Italy
| | - Claudia Petrarca
- Department of Medicine and Aging Sciences, G. D’Annunzio University, 66100 Chieti, Italy
- Center for Advanced Studies and Technology, G. D’Annunzio University, 66100 Chieti, Italy
- Correspondence:
| | - Alessandro Tonacci
- Clinical Physiology Institute, National Research Council of Italy (IFC-CNR), 56124 Pisa, Italy
| | - Mario Di Gioacchino
- Department of Medicine and Aging Sciences, G. D’Annunzio University, 66100 Chieti, Italy
- Institute for Clinical Immunotherapy and Advanced Biological Treatments, 65100 Pescara, Italy
| | - Caterina Musolino
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy
| | - Alessandro Allegra
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy
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Cold Atmospheric Pressure Plasma Is Effective against P. gingivalis (HW24D-1) Mature Biofilms and Non-Genotoxic to Oral Cells. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12147247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The effects of helium cold atmospheric pressure plasma (He-CAPP) jet on Porphyromonas gingivalis (HW24D-1) biofilm, on human gingival fibroblasts (HGF) and human gingival keratinocytes (OBA-9) were assessed. Standardized suspension of P. gingivalis was obtained, and biofilms were grown anaerobically for 48 h. After exposition to He-CAPP, the biofilm viability was evaluated by XTT assay. HGF were grown at 37 °C, in an CO2 chamber in DMEM, while OBA-9 cells were cultured in keratinocyte serum-free medium. After 24 h, plates were exposed to He-CAPP for 1 to 7 min. Plasma was generated using a commercial AC power supply with amplitude modulated signal (voltage amplitude of 20 kVp-p, frequency of 31.0 kHz and duty cycle of 22%). The corresponding discharge power was 0.6W at He flow rate of 1 L/min. DNA damage was accessed by static cytometry. Data were analyzed by GraphPad Prism (p < 0.05). Significant reductions in P. gingivalis viability in relation to non-treated groups were detected (p < 0.0001), directly proportional to exposure time. Treated groups were slightly aneuploid after 5- and 7-min treatment in HGF, and for 3 min in OBA-9 cells, with 1.2 DNA index mean. Helium cold atmospheric pressure plasma jet showed inhibitory effect on P. gingivalis mature biofilm and was not genotoxic for epithelial gingival cells and human oral fibroblasts.
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Inhibitory Effects of Cold Atmospheric Plasma on Inflammation and Tumor-Like Feature of Fibroblast-Like Synoviocytes from Patients with Rheumatoid Arthritis. Inflammation 2022; 45:2433-2448. [PMID: 35713788 DOI: 10.1007/s10753-022-01703-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 11/05/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic, debilitating systemic disease characterized by chronic inflammation and progressive joint destruction. Fibroblast-like synoviocytes (FLSs) are one of the most important players in the pathophysiology of RA, acting like tumor cells and secreting inflammatory cytokines. Previous research has shown that cold atmospheric plasma (CAP) inhibits cancer cells and may have anti-inflammatory properties. This study examined the effects of argon plasma jet-produced CAP on the suppression of invasion and inflammation caused by cultured RA-FLS. The findings revealed that CAP reduced cell viability and elevated the percentage of apoptotic RA-FLS by producing reactive oxygen species. Carboxyfluorescein diacetate succinimidyl ester (CFSE) staining confirmed that CAP could decrease the proliferation of RA-FLS. Furthermore, CAP effectively reduced the production of inflammatory factors (e.g., NF-κB and IL-6) as well as destructive factors like receptor activator of nuclear factor kappa-B ligand (RANKL) and matrix metalloproteinases-3 (MMP-3). These data suggest that CAP could be a promising treatment for slowing the progression of RA by reducing tumor-like features and inflammation in RA-FLS.
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Eggers B, Stope MB, Marciniak J, Götz W, Mustea A, Deschner J, Nokhbehsaim M, Kramer FJ. Non-Invasive Physical Plasma Generated by a Medical Argon Plasma Device Induces the Expression of Regenerative Factors in Human Gingival Keratinocytes, Fibroblasts, and Tissue Biopsies. Biomedicines 2022; 10:biomedicines10040889. [PMID: 35453639 PMCID: PMC9028866 DOI: 10.3390/biomedicines10040889] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/07/2022] [Accepted: 04/11/2022] [Indexed: 02/06/2023] Open
Abstract
After oral surgery, intraoral wound healing and tissue regeneration is an important factor for the success of the entire therapy. In recent years, non-invasive medical plasma (NIPP) has been shown to accelerate wound healing, which would be particularly beneficial for patients with wound healing disorders. Since the application of NIPP in dentistry has not been sufficiently understood, the aim of the present study was to investigate the effect of a medical argon plasma device on gingival cells. Human gingival fibroblasts, keratinocytes, and tissue biopsies were treated with NIPP for different durations. Crucial markers associated with wound healing were examined at the mRNA and protein levels by real-time PCR, ELISA and immunohistochemistry. NIPP treatment led to an increase in Ki67 and MMP1 at mRNA and protein levels. NIPP application lasting longer than 60 s resulted in an increase in apoptotic genes at mRNA level and superficial damage to the epithelium in the tissue biopsies. Overall, our experimental setup demonstrated that NIPP application times of 30 s were most suitable for the treatment of gingival cells and tissue biopsies. Our study provides evidence for potential use of NIPP in dentistry, which would be a promising treatment option for oral surgery.
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Affiliation(s)
- Benedikt Eggers
- Department of Oral, Maxillofacial and Plastic Surgery, University Hospital Bonn, 53111 Bonn, Germany;
- Correspondence: ; Tel.: +49-0228-287-22407
| | - Matthias Bernhard Stope
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, 53127 Bonn, Germany; (M.B.S.); (A.M.)
| | - Jana Marciniak
- Department of Orthodontics, University Hospital Bonn, 53111 Bonn, Germany; (J.M.); (W.G.)
| | - Werner Götz
- Department of Orthodontics, University Hospital Bonn, 53111 Bonn, Germany; (J.M.); (W.G.)
| | - Alexander Mustea
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, 53127 Bonn, Germany; (M.B.S.); (A.M.)
| | - James Deschner
- Department of Periodontology and Operative Dentistry, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany;
| | - Marjan Nokhbehsaim
- Section of Experimental Dento-Maxillo-Facial Medicine, University Hospital Bonn, 53111 Bonn, Germany;
| | - Franz-Josef Kramer
- Department of Oral, Maxillofacial and Plastic Surgery, University Hospital Bonn, 53111 Bonn, Germany;
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Milhan NVM, Chiappim W, Sampaio ADG, Vegian MRDC, Pessoa RS, Koga-Ito CY. Applications of Plasma-Activated Water in Dentistry: A Review. Int J Mol Sci 2022; 23:ijms23084131. [PMID: 35456947 PMCID: PMC9029124 DOI: 10.3390/ijms23084131] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/12/2022] Open
Abstract
The activation of water by non-thermal plasma creates a liquid with active constituents referred to as plasma-activated water (PAW). Due to its active constituents, PAW may play an important role in different fields, such as agriculture, the food industry and healthcare. Plasma liquid technology has received attention in recent years due to its versatility and good potential, mainly focused on different health care purposes. This interest has extended to dentistry, since the use of a plasma–liquid technology could bring clinical advantages, compared to direct application of non-thermal atmospheric pressure plasmas (NTAPPs). The aim of this paper is to discuss the applicability of PAW in different areas of dentistry, according to the published literature about NTAPPs and plasma–liquid technology. The direct and indirect application of NTAPPs are presented in the introduction. Posteriorly, the main reactors for generating PAW and its active constituents with a role in biomedical applications are specified, followed by a section that discusses, in detail, the use of PAW as a tool for different oral diseases.
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Affiliation(s)
- Noala Vicensoto Moreira Milhan
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
- Correspondence: ; Tel.: +55-12-991851206
| | - William Chiappim
- Plasma and Processes Laboratory, Department of Physics, Aeronautics Institute of Technology, Praça Marechal Eduardo Gomes 50, São José dos Campos 12228-900, Brazil; (W.C.); (R.S.P.)
| | - Aline da Graça Sampaio
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
| | - Mariana Raquel da Cruz Vegian
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
| | - Rodrigo Sávio Pessoa
- Plasma and Processes Laboratory, Department of Physics, Aeronautics Institute of Technology, Praça Marechal Eduardo Gomes 50, São José dos Campos 12228-900, Brazil; (W.C.); (R.S.P.)
| | - Cristiane Yumi Koga-Ito
- Oral Biopathology Graduate Program, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12245-000, Brazil; (A.d.G.S.); (M.R.d.C.V.); (C.Y.K.-I.)
- Department of Environment Engineering, São José dos Campos Institute of Science & Technology, São Paulo State University, UNESP, São Paulo 12247-016, Brazil
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Non-Invasive Physical Plasma Treatment after Tooth Extraction in a Patient on Antiresorptive Medication Promotes Tissue Regeneration. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Postoperative tissue regeneration can be negatively affected by bisphosphonate administration, especially in patients with oncologic diseases. A serious complication of bisphosphonate therapy is the medication-related osteonecrosis of the jaw (MRONJ), which can be observed mainly after dental surgery. MRONJ is a progressive destruction of the bone that requires patients to stay in hospital for extended periods of time. For this reason, primary wound closure is particularly important in surgical procedures. In the case of wound dehiscence, there is a very high risk for MRONJ. In recent years, non-invasive physical plasma (NIPP) has become known for improving wound healing on the one hand, but also for its promising efficacy in cancer therapy on the other hand. We report on a 63-year-old patient with a history of multiple myeloma and receiving zoledronate, who developed wound dehiscence after tooth extraction. NIPP treatment resulted in complete epithelialization of the entire wound dehiscence. In conclusion, the use of NIPP in patients receiving antiresorptive drugs seems to support tissue regeneration and thus could be an important tool for the prevention of MRONJ.
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Eggers B, Wagenheim AM, Jung S, Kleinheinz J, Nokhbehsaim M, Kramer FJ, Sielker S. Effect of Cold Atmospheric Plasma (CAP) on Osteogenic Differentiation Potential of Human Osteoblasts. Int J Mol Sci 2022; 23:ijms23052503. [PMID: 35269642 PMCID: PMC8910241 DOI: 10.3390/ijms23052503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/11/2022] [Accepted: 02/22/2022] [Indexed: 01/12/2023] Open
Abstract
Bone regeneration after oral and maxillofacial surgery is a long-term process, which involves various mechanisms. Recently, cold atmospheric plasma (CAP) has become known to accelerate wound healing and have an antimicrobial effect. Since the use of CAP in dentistry is not yet established, the aim of the present study was to investigate the effect of CAP on human calvaria osteoblasts (HCO). HCO were treated with CAP for different durations of time and distances to the cells. Cell proliferation was determined by MTT assay and cell toxicity by LDH assay. Additionally, RT-qPCR was used to investigate effects on osteogenic markers, such as alkaline phosphatase (ALP), bone morphogenic protein (BMP)2, collagen (COL)1A1, osteonectin (SPARC), osteoprotegerin (OPG), osterix (OSX), receptor activator of NF-κB (RANK), RANK Ligand (RANKL), and Runt-related transcription factor (RUNX)2. There were small differences in cell proliferation and LDH release regarding treatment duration and distance to the cells. However, an increase in the expression of RANK and RANKL was observed at longer treatment times. Additionally, CAP caused a significant increase in mRNA expression of genes relevant to osteogenesis. In conclusion, CAP has a stimulating effect on osteoblasts and may thus represent a potential therapeutic approach in the regeneration of hard tissue defects.
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Affiliation(s)
- Benedikt Eggers
- Department of Oral, Maxillofacial and Plastic Surgery, University Hospital Bonn, 53111 Bonn, Germany;
- Correspondence: (B.E.); (S.S.); Tel.: +49-(0)228-287-22407 (B.E.); +49-251-83-47007 (S.S.)
| | - Anna-Maria Wagenheim
- Research Unit Vascular Biology of Oral Structures (VABOS), Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, 48149 Münster, Germany; (A.-M.W.); (S.J.); (J.K.)
| | - Susanne Jung
- Research Unit Vascular Biology of Oral Structures (VABOS), Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, 48149 Münster, Germany; (A.-M.W.); (S.J.); (J.K.)
| | - Johannes Kleinheinz
- Research Unit Vascular Biology of Oral Structures (VABOS), Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, 48149 Münster, Germany; (A.-M.W.); (S.J.); (J.K.)
| | - Marjan Nokhbehsaim
- Section of Experimental Dento-Maxillo-Facial Medicine, University Hospital Bonn, 53111 Bonn, Germany;
| | - Franz-Josef Kramer
- Department of Oral, Maxillofacial and Plastic Surgery, University Hospital Bonn, 53111 Bonn, Germany;
| | - Sonja Sielker
- Research Unit Vascular Biology of Oral Structures (VABOS), Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, 48149 Münster, Germany; (A.-M.W.); (S.J.); (J.K.)
- Correspondence: (B.E.); (S.S.); Tel.: +49-(0)228-287-22407 (B.E.); +49-251-83-47007 (S.S.)
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Biocompatible Gas Plasma Treatment Affects Secretion Profiles but Not Osteogenic Differentiation in Patient-Derived Mesenchymal Stromal Cells. Int J Mol Sci 2022; 23:ijms23042038. [PMID: 35216160 PMCID: PMC8879607 DOI: 10.3390/ijms23042038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 11/17/2022] Open
Abstract
Cold physical plasma (CPP), a partially ionized gas that simultaneously generates reactive oxygen and nitrogen species, is suggested to provide advantages in regenerative medicine. Intraoperative CPP therapy targeting pathologies related to diminished bone quality could be promising in orthopedic surgery. Assessment of a clinically approved plasma jet regarding cellular effects on primary bone marrow mesenchymal stromal cells (hBM-MSCs) from relevant arthroplasty patient cohorts is needed to establish CPP-based therapeutic approaches for bone regeneration. Thus, the aim of this study was to derive biocompatible doses of CPP and subsequent evaluation of human primary hBM-MSCs’ osteogenic and immunomodulatory potential. Metabolic activity and cell proliferation were affected in a treatment-time-dependent manner. Morphometric high content imaging analyses revealed a decline in mitochondria and nuclei content and increased cytoskeletal compactness following CPP exposure. Employing a nontoxic exposure regime, investigation on osteogenic differentiation did not enhance osteogenic capacity of hBM-MSCs. Multiplex analysis of major hBM-MSC cytokines, chemokines and growth factors revealed an anti-inflammatory, promatrix-assembling and osteoclast-regulating secretion profile following CPP treatment and osteogenic stimulus. This study can be noted as the first in vitro study addressing the influence of CPP on hBM-MSCs from individual donors of an arthroplasty clientele.
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Wagner G, Eggers B, Duddeck D, Kramer FJ, Bourauel C, Jepsen S, Deschner J, Nokhbehsaim M. Influence of cold atmospheric plasma on dental implant materials - an in vitro analysis. Clin Oral Investig 2021; 26:2949-2963. [PMID: 34907458 PMCID: PMC8898257 DOI: 10.1007/s00784-021-04277-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 11/01/2021] [Indexed: 12/25/2022]
Abstract
Background and objectives Alterations in the microenvironment of implant surfaces could influence the cellular crosstalk and adhesion patterns of dental implant materials. Cold plasma has been described to have an influence on cells, tissues, and biomaterials. Hence, the mechanisms of osseointegration may be altered by non-thermal plasma treatment depending on different chemical compositions and surface coatings of the biomaterial. The aim of the present study is to investigate the influence of cold atmospheric plasma (CAP) treatment on implant surfaces and its biological and physicochemical side effects. Materials and methods Dental implant discs from titanium and zirconia with different surface modifications were treated with CAP at various durations. Cell behavior and adhesion patterns of human gingival fibroblast (HGF-1) and osteoblast-like cells (MG-63) were examined using scanning electron microscopy and fluorescence microscopy. Surface chemical characterization was analyzed using energy-dispersive X-ray spectroscopy (EDS). Quantitative analysis of cell adhesion, proliferation, and extracellular matrix formation was conducted including real-time PCR. Results CAP did not affect the elemental composition of different dental implant materials. Additionally, markers for cell proliferation, extracellular matrix formation, and cell adhesion were differently regulated depending on the application time of CAP treatment in MG-63 cells and gingival fibroblasts. Conclusions CAP application is beneficial for dental implant materials to allow for faster proliferation and adhesion of cells from the surrounding tissue on both titanium and zirconia implant surfaces with different surface properties. Clinical relevance The healing capacity provided through CAP treatment could enhance osseointegration of dental implants and has the potential to serve as an effective treatment option in periimplantitis therapy.
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Affiliation(s)
- Gunar Wagner
- Department of Periodontology, Operative and Preventive Dentistry, Center of Dento-Maxilo-Facial Medicine, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.
| | - Benedikt Eggers
- Department of Oral Surgery, Center of Dento-Maxillo-Facial Medicine, University of Bonn, 53111, Bonn, Germany
| | - Dirk Duddeck
- Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, University Charité Berlin, 14197, Berlin, Germany.,Research Department, CleanImplant Foundation, 10117, Berlin, Germany
| | - Franz-Josef Kramer
- Department of Oral Surgery, Center of Dento-Maxillo-Facial Medicine, University of Bonn, 53111, Bonn, Germany.,Department of Cranio-Maxillofacial Surgery, Center of Dento-Maxillo-Facial Medicine, University of Bonn, 53111, Bonn, Germany
| | - Christoph Bourauel
- Department of Oral Technology, School of Dentistry, University of Bonn, 53111, Bonn, Germany
| | - Søren Jepsen
- Department of Periodontology, Operative and Preventive Dentistry, Center of Dento-Maxilo-Facial Medicine, University of Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
| | - James Deschner
- Department of Periodontology and Operative Dentistry, University of Mainz, 55131, Mainz, Germany
| | - Marjan Nokhbehsaim
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University of Bonn, 53111, Bonn, Germany
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Evaluation of In Vitro Wound-Healing Potential, Antioxidant Capacity, and Antimicrobial Activity of Stellaria media (L.) Vill. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112311526] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The healing of skin wounds remains an important concern in medicine, especially in chronic wounds caused by various diseases such as diabetes. Using herbs or herbal products to heal skin wounds is a therapeutic challenge for traditional medicine. In this context, the main aim of our work was to highlight the in vitro healing potential of Stellaria media (L.) Vill. (SM) extract using the scratch assay on normal human dermal fibroblasts (NHDF). The ability to stimulate cell migration and proliferation under the influence of different concentrations of SM extract (range between 12.5 and 200 µg/mL) was determined compared to the control (untreated in vitro-simulated wound) and positive control (allantoin 50 µg/mL). Our results showed that the concentration of 100 µg/mL SM extract applied on the simulated wound recorded the strongest and fastest (24 h) migration (with wound closure) and proliferation of NHDF compared with the control. In addition, the SM extract was characterized in terms of bioactive compounds (total phenols and flavonoids content), antioxidant capacity (FRAP (The Ferric-Reducing Antioxidant Power) assay and electrochemical method), and antimicrobial activity. The results show that the SM extract contains a considerable amount of polyphenols (17.19 ± 1.32 mg GAE/g dw and 7.28 ± 1.18 mg QE/g dw for total phenol and flavonoid content, respectively) with antioxidant capacity. Antimicrobial activity against Gram-positive bacteria (S. aureus) is higher than E. coli at a dose of 15 µg/mL. This study showed that Stellaria media is a source of polyphenols compounds with antioxidant capacity, and for the first time, its wound healing potential was emphasized.
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Kusakcı-Seker B, Ozdemir H, Karadeniz-Saygili S. Evaluation of the protective effects of non-thermal atmospheric plasma on alveolar bone loss in experimental periodontitis. Clin Oral Investig 2021; 25:6949-6959. [PMID: 34585260 DOI: 10.1007/s00784-021-04203-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/22/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The inhibition of bone destruction is one of the main goals of periodontitis treatment. The aim of this study was to investigate the protective effects of non-thermal atmospheric plasma (NTAP) on alveolar bone loss radiographically, histomorphometrically, and histologically in experimental periodontitis in rats. MATERIALS AND METHODS A total of twenty-eight rats were randomly divided into three groups: control group (CG) (n = 8), periodontitis group (PG) (n = 10), and NTAP group (NTAPG) (n = 10). In PG and NTAPG, experimental periodontitis was created with ligating. The kINPen 11 plasma jet was applied around the ligatured teeth in NTAPG. The samples from each group were radiographically assessed with microcomputed tomography (micro-CT); then, histological (presence of osteoclasts and inflammatory cells) and immunohistochemical (immunoreactive of OCN and ALP) findings were compared. RESULTS The results revealed a significant increase in alveolar bone loss in the PG compared with CG and NTAPG (p < 0.05). Inflammation, alveolar resorption, and cement damage were reduced significantly in the group treated with NTAP compared to the PG (p < 0.05). Significantly higher levels of osteoclasts were detected in the PG in comparison with both CG and NTAPG (p < 0.05). The lowest osteocalcin and ALP values were determined in PG, and the differences between PG and both groups were also significant (p < 0.05). CONCLUSION Within the limitations of the present study, we can say that NTAP may enhance the bone remodeling process by inhibiting inflammation and preventing alveolar bone destruction. CLINICAL RELEVANCE NTAP has clinical potential for accelerating and treating periodontitis with the inflammatory response modulation, osteoblast differentiation, and alveolar bone loss reduction.
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Affiliation(s)
- Basak Kusakcı-Seker
- Faculty of Dentistry, Department of Periodontology, Eskisehir Osmangazi University, Eskisehir, Turkey.
| | - Hakan Ozdemir
- Faculty of Dentistry, Department of Periodontology, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Suna Karadeniz-Saygili
- Faculty of Medicine, Department of Histology and Embryology, Kütahya Health Science University, Kütahya, Turkey
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15
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Gouarderes S, Marches A, Vicendo P, Fourquaux I, Simon M, Merbahi N, Gibot L. Cold helium plasma jet does not stimulate collagen remodeling in a 3D human dermal substitute. Bioelectrochemistry 2021; 143:107985. [PMID: 34735915 DOI: 10.1016/j.bioelechem.2021.107985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/03/2021] [Accepted: 10/18/2021] [Indexed: 11/16/2022]
Abstract
Cold Atmospheric Plasma (CAP) is an emerging physical approach displaying encouraging antitumor and wound healing effects both in vitro and in vivo. In this study, we assessed the potential of direct CAP to remodel skin collagens using an original tissue-engineered human dermal substitute model rich in endogenous extracellular matrix (ECM) covered with 600 µl of culture medium and treated with CAP for 30 and 120 s. Our results indicated that Reactive Oxygen and Nitrogen Species (RONS) such as H2O2, NO3- and NO2- were produced in the medium during treatment. It appeared that in the CAP-treated dermal substitutes 1) cell viability was not altered, 2) pro-collagen I secretion was not modified over 48 h of culture after treatment, 3) global activity of matrix metalloproteinases MMPs was not modulated over 48 h after treatment, and 4) no change in hydroxyproline content was observed over 5 days after treatment. In order to confirm the efficiency of our device, we showed that the plasma-activated culture medium induced cell apoptosis and growth delay using a 3D human tumor spheroid model. In conclusion, no effect of direct CAP treatment was monitored on dermal ECM production and degradation, indicating that CAP does not stimulate collagen remodeling at the tissue scale.
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Affiliation(s)
- Sara Gouarderes
- Laboratoire des IMRCP, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Aurélie Marches
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), Toulouse University, CNRS, Inserm, Toulouse III - Paul Sabatier University, Toulouse, France; Laplace UMR CNRS 5213, Université Toulouse III - Paul Sabatier, France
| | - Patricia Vicendo
- Laboratoire des IMRCP, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Isabelle Fourquaux
- Centre de Microscopie Électronique Appliquée à la Biologie, CMEAB, 133 route de Narbonne, 31062 Toulouse, France
| | - Michel Simon
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), Toulouse University, CNRS, Inserm, Toulouse III - Paul Sabatier University, Toulouse, France
| | - Nofel Merbahi
- Laplace UMR CNRS 5213, Université Toulouse III - Paul Sabatier, France.
| | - Laure Gibot
- Laboratoire des IMRCP, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France.
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16
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Shimatani A, Toyoda H, Orita K, Hirakawa Y, Aoki K, Oh JS, Shirafuji T, Nakamura H. In vivo study on the healing of bone defect treated with non-thermal atmospheric pressure gas discharge plasma. PLoS One 2021; 16:e0255861. [PMID: 34634068 PMCID: PMC8504758 DOI: 10.1371/journal.pone.0255861] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/21/2021] [Indexed: 12/21/2022] Open
Abstract
Medical treatment using non-thermal atmospheric pressure plasma (NTAPP) is rapidly gaining recognition. NTAPP is thought to be a new therapeutic method because it could generate highly reactive species in an ambient atmosphere which could be exposed to biological targets (e.g., cells and tissues). If plasma-generated reactive species could stimulate bone regeneration, NTAPP can provide a new treatment opportunity in regenerative medicine. Here, we investigated the impact of NTAPP on bone regeneration using a large bone defect in New Zealand White rabbits and a simple atmospheric pressure plasma (helium microplasma jet). We observed the recovery progress of the large bone defects by X-ray imaging over eight weeks after surgery. The X-ray results showed a clear difference in the occupancy of the new bone of the large bone defect among groups with different plasma treatment times, whereas the new bone occupancy was not substantial in the untreated control group. According to the results of micro-computed tomography analysis at eight weeks, the most successful bone regeneration was achieved using a plasma treatment time of 10 min, wherein the new bone volume was 1.51 times larger than that in the plasma untreated control group. Using H&E and Masson trichrome stains, nucleated cells were uniformly observed, and no inclusion was confirmed, respectively, in the groups of plasma treatment. We concluded the critical large bone defect were filled with new bone. Overall, these results suggest that NTAPP is promising for fracture treatment.
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Affiliation(s)
- Akiyoshi Shimatani
- Department of Orthopedic Surgery, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Hiromitsu Toyoda
- Department of Orthopedic Surgery, Graduate School of Medicine, Osaka City University, Osaka, Japan
- * E-mail: (HT); (J-SO)
| | - Kumi Orita
- Department of Orthopedic Surgery, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | | | - Kodai Aoki
- Department of Physical Electronics and Informatics, Graduate School of Engineering, Osaka City University, Osaka, Japan
| | - Jun-Seok Oh
- Department of Physical Electronics and Informatics, Graduate School of Engineering, Osaka City University, Osaka, Japan
- BioMedical Engineering Center, Graduate School of Engineering, Osaka City University, Osaka, Japan
- * E-mail: (HT); (J-SO)
| | - Tatsuru Shirafuji
- Department of Physical Electronics and Informatics, Graduate School of Engineering, Osaka City University, Osaka, Japan
- BioMedical Engineering Center, Graduate School of Engineering, Osaka City University, Osaka, Japan
| | - Hiroaki Nakamura
- Department of Orthopedic Surgery, Graduate School of Medicine, Osaka City University, Osaka, Japan
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Cold Atmospheric Plasma Jet as a Possible Adjuvant Therapy for Periodontal Disease. Molecules 2021; 26:molecules26185590. [PMID: 34577061 PMCID: PMC8470429 DOI: 10.3390/molecules26185590] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 08/27/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022] Open
Abstract
Due to the limitations of traditional periodontal therapies, and reported cold atmospheric plasma anti-inflammatory/antimicrobial activities, plasma could be an adjuvant therapy to periodontitis. Porphyromonas gingivalis was grown in blood agar. Standardized suspensions were plated on blood agar and plasma-treated for planktonic growth. For biofilm, dual-species Streptococcus gordonii + P. gingivalis biofilm grew for 48 h and then was plasma-treated. XTT assay and CFU counting were performed. Cytotoxicity was accessed immediately or after 24 h. Plasma was applied for 1, 3, 5 or 7 min. In vivo: Thirty C57BI/6 mice were subject to experimental periodontitis for 11 days. Immediately after ligature removal, animals were plasma-treated for 5 min once-Group P1 (n = 10); twice (Day 11 and 13)-Group P2 (n = 10); or not treated-Group S (n = 10). Mice were euthanized on day 15. Histological and microtomography analyses were performed. Significance level was 5%. Halo diameter increased proportionally to time of exposure contrary to CFU/mL counting. Mean/SD of fibroblasts viability did not vary among the groups. Plasma was able to inhibit P. gingivalis in planktonic culture and biofilm in a cell-safe manner. Moreover, plasma treatment in vivo, for 5 min, tends to improve periodontal tissue recovery, proportionally to the number of plasma applications.
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18
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Eggers B, Marciniak J, Memmert S, Wagner G, Deschner J, Kramer FJ, Nokhbehsaim M. Influences of cold atmospheric plasma on apoptosis related molecules in osteoblast-like cells in vitro. Head Face Med 2021; 17:37. [PMID: 34479596 PMCID: PMC8414668 DOI: 10.1186/s13005-021-00287-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 08/05/2021] [Indexed: 12/26/2022] Open
Abstract
Background Cold atmospheric plasma (CAP) has recently been identified as a novel therapeutic strategy for supporting processes of wound healing. Since CAP is additionally known to kill malignant cells, our study intends to determine the influence of CAP on crucial molecules involved in the molecular mechanism of apoptosis in osteoblast-like cells. Methods Human osteoblast-like cells were CAP-treated for 30 and 60 s. CAP effects on critical factors related to apoptosis were studied at transcriptional and protein level using real time-PCR, immunofluorescence staining and western blot. Phalloidin / DAPI staining was used for analyzing the cell morphology. In addition, apoptotic outcomes of CAP were displayed using flow cytometry analysis. For studying intracellular signaling pathways, MAP kinase MEK 1/2 and PI3K were blocked. Finally, the effects of CAP on caspase-3 activity were examined using a caspase-3 assay. Results CAP treatment resulted in a significant downregulation of p53 and apoptotic protease activating factor (APAF)-1, caspase (CASP)9, CASP3, BCL2 Antagonist/Killer (BAK)1, and B-Cell Lymphoma (BCL)2 mRNA expression at 1 d. An inhibitory effect of CAP on apoptotic genes was also shown under inflammatory and apoptotic conditions. Nuclear translocation of p53 was determined in CAP treated cells at the early and late stage, after 15 min, 30 min, and 1 h. p53 and APAF-1 protein levels were reduced at 1 d, visualized by immunofluorescence and western blot, respectively. Moreover, a morphological cytoskeleton modification was observed after CAP treatment at 1 d. Further, both CAP-treated and untreated (control) cells remained equally vital as detected by flow cytometry analysis. Interestingly, CAP-associated downregulation of CASP9 and CASP3 mRNA gene expression was also visible after blocking MAP kinase and PI3K. Finally, CAP led to a decrease in CASP3 activity in osteoblast-like cells under normal and apoptotic conditions. Conclusions Our in vitro-study demonstrated, that CAP decreases apoptosis related molecules in osteoblast-like cells, underlining a beneficial effect on hard-tissue cells.
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Affiliation(s)
- Benedikt Eggers
- Department of Oral, Maxillofacial and Plastic Surgery, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.
| | - Jana Marciniak
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.,Department of Orthodontics, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
| | - Svenja Memmert
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.,Department of Orthodontics, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
| | - Gunar Wagner
- Department of Periodontology, Operative and Preventive Dentistry, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
| | - James Deschner
- Department of Periodontology and Operative Dentistry, University Medical Center of the Johannes Gutenberg University, Augustusplatz 2, 55131, Mainz, Germany
| | - Franz-Josef Kramer
- Department of Oral, Maxillofacial and Plastic Surgery, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
| | - Marjan Nokhbehsaim
- Section of Experimental Dento-Maxillo-Facial Medicine, Center of Dento-Maxillo-Facial Medicine, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany
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Pefani-Antimisiari K, Athanasopoulos DK, Marazioti A, Sklias K, Rodi M, de Lastic AL, Mouzaki A, Svarnas P, Antimisiaris SG. Synergistic effect of cold atmospheric pressure plasma and free or liposomal doxorubicin on melanoma cells. Sci Rep 2021; 11:14788. [PMID: 34285268 PMCID: PMC8292331 DOI: 10.1038/s41598-021-94130-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/30/2021] [Indexed: 12/30/2022] Open
Abstract
The aim of the present study was to investigate combined effects of cold atmospheric plasma (CAP) and the chemotherapeutic drug doxorubicin (DOX) on murine and human melanoma cells, and normal cells. In addition to free drug, the combination of CAP with a liposomal drug (DOX-LIP) was also studied for the first time. Thiazolyl blue tetrazolium bromide (MTT) and Trypan Blue exclusion assays were used to evaluate cell viability; the mechanism of cell death was evaluated by flow cytometry. Combined treatment effects on the clonogenic capability of melanoma cells, was also tested with soft agar colony formation assay. Furthermore the effect of CAP on the cellular uptake of DOX or DOX-LIP was examined. Results showed a strong synergistic effect of CAP and DOX or DOX-LIP on selectively decreasing cell viability of melanoma cells. CAP accelerated the apoptotic effect of DOX (or DOX-LIP) and dramatically reduced the aggressiveness of melanoma cells, as the combination treatment significantly decreased their anchorage independent growth. Moreover, CAP did not result in increased cellular uptake of DOX under the present experimental conditions. In conclusion, CAP facilitates DOX cytotoxic effects on melanoma cells, and affects their metastatic potential by reducing their clonogenicity, as shown for the first time.
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Affiliation(s)
| | - Dimitrios K Athanasopoulos
- High Voltage Laboratory, Department of Electrical and Computer Engineering, University of Patras, 26504, Rion, Greece
| | - Antonia Marazioti
- Pharmaceutical Technology Laboratory, Department of Pharmacy, University of Patras, 26504, Rion, Greece.
- FORTH/ICE-ΗΤ, Institute of Chemical Engineering Sciences, 26504, Rion, Greece.
| | - Kyriakos Sklias
- High Voltage Laboratory, Department of Electrical and Computer Engineering, University of Patras, 26504, Rion, Greece
| | - Maria Rodi
- Laboratory of Immunohematology, Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, 26500, Patras, Greece
| | - Anne-Lise de Lastic
- Laboratory of Immunohematology, Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, 26500, Patras, Greece
| | - Athanasia Mouzaki
- Laboratory of Immunohematology, Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, 26500, Patras, Greece
| | - Panagiotis Svarnas
- High Voltage Laboratory, Department of Electrical and Computer Engineering, University of Patras, 26504, Rion, Greece.
| | - Sophia G Antimisiaris
- Pharmaceutical Technology Laboratory, Department of Pharmacy, University of Patras, 26504, Rion, Greece
- FORTH/ICE-ΗΤ, Institute of Chemical Engineering Sciences, 26504, Rion, Greece
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Cold Atmospheric Plasma Promotes Regeneration-Associated Cell Functions of Murine Cementoblasts In Vitro. Int J Mol Sci 2021; 22:ijms22105280. [PMID: 34067898 PMCID: PMC8156616 DOI: 10.3390/ijms22105280] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/05/2021] [Accepted: 05/14/2021] [Indexed: 12/15/2022] Open
Abstract
The aim of the study was to examine the efficacy of cold atmospheric plasma (CAP) on the mineralization and cell proliferation of murine dental cementoblasts. Cells were treated with CAP and enamel matrix derivates (EMD). Gene expression of alkaline phosphatase (ALP), bone gamma-carboxyglutamate protein (BGLAP), periostin (POSTN), osteopontin (OPN), osterix (OSX), collagen type I alpha 1 chain (COL1A1), dentin matrix acidic phosphoprotein (DMP)1, RUNX family transcription factor (RUNX)2, and marker of proliferation Ki-67 (KI67) was quantified by real-time PCR. Protein expression was analyzed by immunocytochemistry and ELISA. ALP activity was determined by ALP assay. Von Kossa and alizarin red staining were used to display mineralization. Cell viability was analyzed by XTT assay, and morphological characterization was performed by DAPI/phalloidin staining. Cell migration was quantified with an established scratch assay. CAP and EMD upregulated both mRNA and protein synthesis of ALP, POSTN, and OPN. Additionally, DMP1 and COL1A1 were upregulated at both gene and protein levels. In addition to upregulated RUNX2 mRNA levels, treated cells mineralized more intensively. Moreover, CAP treatment resulted in an upregulation of KI67, higher cell viability, and improved cell migration. Our study shows that CAP appears to have stimulatory effects on regeneration-associated cell functions in cementoblasts.
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21
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Bi F, Chen C, Fu J, Yu L, Geng J. Inhibiting proliferation and metastasis of osteosarcoma cells by downregulation of long non-coding RNA colon cancer-associated transcript 2 targeting microRNA-143. Oncol Lett 2021; 21:265. [PMID: 33664828 PMCID: PMC7882883 DOI: 10.3892/ol.2021.12526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 12/18/2020] [Indexed: 02/07/2023] Open
Abstract
Osteosarcoma is a malignant bone tumor, which has a high incidence in children and adolescents. However, the pathogenesis of osteosarcoma remains unclear. Long noncoding RNA (lncRNA) is a new potential therapeutic target and diagnostic biomarker for osteosarcoma. Hence, the present study aimed to explore the effect of lncRNA colon cancer-associated transcript (CCAT2) on osteosarcoma and its potential underlying mechanisms. For this purpose, the proliferation of osteosarcoma cells was measured using the CCK-8 assay. The scratch-wound and cell invasion assays were used to determine the migration and invasion of osteosarcoma cells, respectively. LncRNA CCAT2 and microRNA (miR)-143 binding sites were identified by the dual-luciferase reporter assay. RNA and protein expression levels were detected by reverse-transcription quantitative PCR and western blotting, respectively. Downregulation of lncRNA CCAT2 inhibited the proliferation, migration, and invasion of osteosarcoma cells. The findings also revealed that miR-143 bound directly to lncRNA CCAT2. The expression of miR-143 was upregulated by the knockdown of lncRNA CCAT2. Downregulation of the FOS-like antigen 2 was also observed after knockdown of lncRNA CCAT2. The function of lncRNA CCAT2 in osteosarcoma cells was attenuated by co-transfection with anti-miR-143 oligodeoxyribonucleotide. In conclusion, downregulation of lncRNA CCAT2 inhibited the proliferation and metastasis of osteosarcoma cells by targeting miR-143. lncRNA CCAT2 was identified as a potential target for osteosarcoma treatment.
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Affiliation(s)
- Fengjiang Bi
- Department of Orthopedics, The First Hospital of Qiqihaer, Qiqihaer, Heilongjiang 161005, P.R. China
| | - Can Chen
- Department of Orthopedics, The First Hospital of Qiqihaer, Qiqihaer, Heilongjiang 161005, P.R. China
| | - Jing Fu
- Department of Orthopedics, The First Hospital of Qiqihaer, Qiqihaer, Heilongjiang 161005, P.R. China
| | - Lei Yu
- Department of Orthopedics, The First Hospital of Qiqihaer, Qiqihaer, Heilongjiang 161005, P.R. China
| | - Jia Geng
- Department of Orthopedics, The First Hospital of Qiqihaer, Qiqihaer, Heilongjiang 161005, P.R. China,Correspondence to: Dr Jia Geng, Department of Orthopedics, The First Hospital of Qiqihaer, 30 Park Road, Qiqihaer, Heilongjiang 161005, P.R. China, E-mail:
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Abstract
Plasma is an electrically conducting medium that responds to electric and magnetic fields. It consists of large quantities of highly reactive species, such as ions, energetic electrons, exited atoms and molecules, ultraviolet photons, and metastable and active radicals. Non-thermal or cold plasmas are partially ionized gases whose electron temperatures usually exceed several tens of thousand degrees K, while the ions and neutrals have much lower temperatures. Due to the presence of reactive species at low temperature, the biological effects of non-thermal plasmas have been studied for application in the medical area with promising results. This review outlines the application of cold atmospheric pressure plasma (CAPP) in dentistry for the control of several pathogenic microorganisms, induction of anti-inflammatory, tissue repair effects and apoptosis of cancer cells, with low toxicity to healthy cells. Therefore, CAPP has potential to be applied in many areas of dentistry such as cariology, periodontology, endodontics and oral oncology.
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Schramm S, Hiller KA, Cantzler S, Weilemann H, Cantzler M, Zimmermann JL, Cieplik F, Maisch T. The Latest Time Point of Retreatment (LTPR) as a Novel Method to Determine Antibacterial Effects for Binary Use of Cold Atmospheric Plasma and Conventional Agents. Front Microbiol 2020; 11:576500. [PMID: 33193191 PMCID: PMC7658100 DOI: 10.3389/fmicb.2020.576500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/07/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Sandra Schramm
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| | - Karl-Anton Hiller
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| | | | | | | | | | - Fabian Cieplik
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany
| | - Tim Maisch
- Department of Dermatology, University Hospital Regensburg, Regensburg, Germany
- *Correspondence: Tim Maisch,
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Lee J, Moon H, Ku B, Lee K, Hwang CY, Baek SJ. Anticancer Effects of Cold Atmospheric Plasma in Canine Osteosarcoma Cells. Int J Mol Sci 2020; 21:E4556. [PMID: 32604902 PMCID: PMC7349329 DOI: 10.3390/ijms21124556] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/13/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
Osteosarcoma is known to be one of the frequently occurring cancers in dogs. Its prognosis is usually very poor, with a high incidence of lung metastasis. Although radiation therapy has become a major therapeutic choice for canine osteosarcoma, the high costs and unexpected side effects prevent some patients from considering this treatment. Cold atmospheric plasma (CAP) is an ionized gas with high energy at low temperatures, and it produces reactive oxygen species that mediate many signaling pathways. Although many researchers have used CAP as an anticancer therapeutic approach in humans, its importance has been neglected in veterinary medicine. In this study, D-17 and DSN canine osteosarcoma cell lines were treated with CAP to observe its anticancer activity. By high-content screening and flow cytometry, CAP-treated cells showed growth arrest and apoptosis induction. Moreover, the osteosarcoma cells exhibited reduced migration and invasion activity when treated with CAP. Overall, CAP exerted an anticancer effect on canine osteosarcoma cell lines. CAP may have the potential to be used as a novel modality for treating cancer in veterinary medicine.
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Affiliation(s)
- Jaehak Lee
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea; (J.L.); (H.M.); (C.-Y.H.)
| | - Hyunjin Moon
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea; (J.L.); (H.M.); (C.-Y.H.)
| | - Bonghye Ku
- R&D Center, PSM Inc. Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Korea; (B.K.); (K.L.)
| | - Keunho Lee
- R&D Center, PSM Inc. Jungwon-gu, Seongnam-si, Gyeonggi-do 13207, Korea; (B.K.); (K.L.)
| | - Cheol-Yong Hwang
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea; (J.L.); (H.M.); (C.-Y.H.)
| | - Seung Joon Baek
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea; (J.L.); (H.M.); (C.-Y.H.)
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Rao Y, Shang W, Yang Y, Zhou R, Rao X. Fighting Mixed-Species Microbial Biofilms With Cold Atmospheric Plasma. Front Microbiol 2020; 11:1000. [PMID: 32508796 PMCID: PMC7251026 DOI: 10.3389/fmicb.2020.01000] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 04/24/2020] [Indexed: 01/05/2023] Open
Abstract
Most biofilms in nature are formed by multiple microbial species, and such mixed-species biofilms represent the actual lifestyles of microbes, including bacteria, fungi, viruses (phages), and/or protozoa. Microorganisms cooperate and compete in mixed-species biofilms. Mixed-species biofilm formation and environmental resistance are major threats to water supply, food industry, and human health. The methods commonly used for microbial eradication, such as antibiotic or disinfectant treatments, are often ineffective for mixed-species biofilm consortia due to their physical matrix barrier and physiological interactions. For the last decade, an increasing number of investigations have been devoted to the usage of cold atmospheric plasma (CAP), which is produced by dielectric barrier discharges or plasma jets to prevent or eliminate microbial biofilms. Here, we summarized the production of CAP, the inactivation of microorganisms upon CAP treatment, and the microbial factors affecting the efficacy of CAP procedure. The applications of CAP as antibiotic alternative strategies for fighting mixed-species biofilms were also addressed.
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Affiliation(s)
- Yifan Rao
- Department of Microbiology, College of Basic Medical Sciences, Key Laboratory of Microbial Engineering Under the Educational Committee in Chongqing, Army Medical University, Chongqing, China
| | - Weilong Shang
- Department of Microbiology, College of Basic Medical Sciences, Key Laboratory of Microbial Engineering Under the Educational Committee in Chongqing, Army Medical University, Chongqing, China
| | - Yi Yang
- Department of Microbiology, College of Basic Medical Sciences, Key Laboratory of Microbial Engineering Under the Educational Committee in Chongqing, Army Medical University, Chongqing, China
| | - Renjie Zhou
- Department of Emergency, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xiancai Rao
- Department of Microbiology, College of Basic Medical Sciences, Key Laboratory of Microbial Engineering Under the Educational Committee in Chongqing, Army Medical University, Chongqing, China
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