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Ochiai Y, Suzuki-Karasaki M, Ando T, Suzuki-Karasaki M, Nakayama H, Suzuki-Karasaki Y. Nitric oxide-dependent cell death in glioblastoma and squamous cell carcinoma via prodeath mitochondrial clustering. Eur J Cell Biol 2024; 103:151422. [PMID: 38795505 DOI: 10.1016/j.ejcb.2024.151422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/28/2024] Open
Abstract
Besides the fission-fusion dynamics, the cellular distribution of mitochondria has recently emerged as a critical biological parameter in regulating mitochondrial function and cell survival. We previously found that mitochondrial clustering on the nuclear periphery, or monopolar perinuclear mitochondrial clustering (MPMC), accompanies the anticancer activity of air plasma-activated medium (APAM) against glioblastoma and human squamous cell carcinoma, which is closely associated with oxidant-dependent tubulin remodeling and mitochondrial fragmentation. Accordingly, this study investigated the regulatory roles of nitric oxide (NO) in the anticancer activity of APAM. Time-lapse analysis revealed a time-dependent increase in NO accompanied by MPMC. In contrast, APAM caused minimal increases in MPMC and NO levels in nontransformed cells. NO, hydroxyl radicals, and lipid peroxide levels increased near the damaged nuclear periphery, possibly within mitochondria. NO scavenging prevented tubulin remodeling, MPMC, perinuclear oxidant production, nuclear damage, and cell death. Conversely, synthetic NO donors augmented all the prodeath events and acted synergistically with APAM. Salinomycin, an emerging drug against multidrug-resistant cancers, had similar NO-dependent effects. These results suggest that APAM and salinomycin induce NO-dependent cell death, where MPMC and oxidative mitochondria play critical roles. Our findings encourage further investigations on MPMC as a potential target for NO-driven anticancer agents against drug-resistant cancers.
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Affiliation(s)
- Yushi Ochiai
- Department of Research and Development, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi Japan
| | - Manami Suzuki-Karasaki
- Department of Research and Development, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi Japan; Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takashi Ando
- Department of Research and Development, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi Japan
| | - Miki Suzuki-Karasaki
- Department of Research and Development, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi Japan
| | - Hideki Nakayama
- Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Lee JH, Jaiswal MS, Jang YS, Choi JH, Kim GC, Hong JW, Hwang DS. No-ozone cold plasma induces apoptosis in human neuroblastoma cell line via increased intracellular reactive oxygen species (ROS). BMC Complement Med Ther 2024; 24:46. [PMID: 38245726 PMCID: PMC10799363 DOI: 10.1186/s12906-023-04313-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 12/12/2023] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND This study aimed to evaluate the effect of argon-based No-ozone Cold Plasma (NCP) on neuroblastoma cancer cell apoptosis. METHODS Experiments were performed with SK-N-SH and HS 68. Cell cultures were treated with NCP for 1, 3, and 5 min. NCP was applied using three different strategies: direct NCP application to cell cultures, to only media, and to only cells. Evaluation of cell viability and the level of the reactive oxygen species (ROS) was performed. N-acetyl-L-cysteine (NAC) was also used to antagonize intracellular ROS. Cleaved caspase 3, PARP, aquaporin (AQP) 3 and 8 were detected. RESULTS NCP induced a gradual decrease in the SK-N-SH cell viability. In contrast, the viability of HS 68 cells did not change. SK-N-SH cells viability was reduced the most when the only media-NCP application strategy was employed. Intracellular ROS levels were significantly increased with time. Cleaved caspase 3 and PARP were increased at 6 h after NCP application. SK-N-SH cells remained viable with NAC after NCP application. AQP 3 and 8 were over-expressed in SK-N-SH cells. CONCLUSION These findings demonstrate the anti-cancer effect of NCP on neuroblastoma cells. NCP enhanced the selective apoptosis of neuroblastoma cells due to the increased intracellular ROS.
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Affiliation(s)
- Jung-Han Lee
- Department of Oral and Maxillofacial Surgery, Dental and Life Science Institute, Dental School, Pusan National University, Busan, South Korea
| | - M Shriya Jaiswal
- Department of Oral and Maxillofacial Surgery, Dental and Life Science Institute, Dental School, Pusan National University, Busan, South Korea
| | - Yoon-Seo Jang
- Department of Oral and Maxillofacial Surgery, Dental and Life Science Institute, Dental School, Pusan National University, Busan, South Korea
| | - Jeong-Hae Choi
- Department of Research and Development, FEAGLE Corporations, 70-6, Jeungsan-ro, Mulgeum-eup, Yangsan-si, 50614, Gyeongsangnam-do, South Korea
| | - Gyoo-Cheon Kim
- Department of Research and Development, FEAGLE Corporations, 70-6, Jeungsan-ro, Mulgeum-eup, Yangsan-si, 50614, Gyeongsangnam-do, South Korea
- Department of Oral Anatomy and Cell Biology, School of Dentistry, Pusan National University, Busan, South Korea
| | - Jin-Woo Hong
- Department of Internal Medicine, School of Korean Medicine, Yangsan Campus of Pusan National University, Beomeo-ri, Mulgeum-eup, Yangsan-si, 50612, Gyeongsangnam-do, South Korea.
| | - Dae-Seok Hwang
- Department of Oral and Maxillofacial Surgery, Dental and Life Science Institute, Dental School, Pusan National University, Busan, South Korea.
- Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea.
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Beomeo-ri, Mulgeum-eup, Yangsan-si, 50612, Gyeongsangnam-do, South Korea.
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Yoshikawa N, Nakamura K, Kajiyama H. Current understanding of Plasma-activated solutions for potential cancer therapy. Free Radic Res 2023:1-12. [PMID: 36944223 DOI: 10.1080/10715762.2023.2193308] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Cancer therapy consists of multidisciplinary treatment combining surgery, chemotherapy, radiotherapy, and immunotherapy. Despite the elucidation of cancer mechanisms by comprehensive genomic and epigenomic analyses and the development of molecular therapy, drug resistance and severe side effects have presented challenges to the long-awaited development of new therapies. With the rapid technological advances in the last decade, there are now reports concerning potential applications of non-equilibrium atmospheric pressure plasma (NEAPP) in cancer therapy. Two approaches have been tried: direct irradiation with NEAPP (direct plasma) and the administration of a liquid (e.g., culture medium, saline, Ringer's lactate) activated by NEAPP (plasma-activated solutions: PAS). Direct plasma is a unique treatment method in which various active species, charged ions, and photons are delivered to the affected area, but the direct plasma approach has physical limitations related to the device used, such as a limited depth of reach and limited irradiation area. PAS is a liquid that contains reactive oxygen species generated by PAS, and it has been confirmed to have antitumor activity that functions in the same manner as direct plasma. This review introduces recent studies of PAS and informs researchers about the potential of PAS for cancer therapy.Key Policy HighlightsPotential applications of plasma-activated solutions (PAS) in cancer therapy are described.Plasma-activated species generated in PAS, its effect on tumor cells, contribution to non-malignant immune cells, selectivity and safety are presented.The proposed anti-tumor mechanisms of PAS to date are described.Efficacy and safety evaluations of PAS have been studied in experimental animal models, but no human studies have been conducted.
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Affiliation(s)
- Nobuhisa Yoshikawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine
| | - Kae Nakamura
- Center for Low-Temperature Plasma Sciences, Nagoya University, Nagoya, Nagoya
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine
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Zhao W, Jing X, Wang T, Zhang F. Glutamine Deprivation Synergizes the Anticancer Effects of Cold Atmospheric Plasma on Esophageal Cancer Cells. Molecules 2023; 28:molecules28031461. [PMID: 36771124 PMCID: PMC9919221 DOI: 10.3390/molecules28031461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Esophageal cancer is a highly aggressive malignancy with a low response to standard anti-cancer therapies. There is an unmet need to develop new therapeutic strategies to improve the clinical outcomes of current treatments. Cold atmospheric plasma (CAP) is a promising approach for cancer treatment, and has displayed anticancer efficacy in multiple preclinical models. Recent studies have shown that the efficacy of CAP is positively correlated with intracellular reactive oxygen species (ROS) levels. This suggests that aggressively increasing intracellular ROS levels has the potential to further improve CAP-mediated anticancer efficacy. Glutamine plays an important role in cellular ROS scavenging after being converted to glutathione (GSH, a well-described antioxidant) under physiological conditions, so reducing intracellular glutamine levels seems to be a promising strategy. To test this hypothesis, we treated esophageal cancer cells with CAP while controlling the supply of glutamine. The results showed that glutamine did affect the anticancer effect of CAP, and the combination of CAP stimulation and glutamine deprivation significantly inhibited the proliferation of esophageal cancer cells compared to the control group (p < 0.05). Furthermore, flow cytometric analysis documented a significant increase in more than 10% in apoptosis and necrosis of esophageal cancer cells after this synergistic treatment compared to the control group (p < 0.05). Thus, these results provide the first direct evidence that the biological function of CAP can be modulated by glutamine levels and that combined CAP stimulation and glutamine deprivation represent a promising strategy for the future treatment of esophageal cancer.
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Affiliation(s)
- Wei Zhao
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Xumiao Jing
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Tao Wang
- College of Nursing and Health, Zhengzhou University, Zhengzhou 450001, China
- Telethon Kids Institute, Perth, WA 6872, Australia
- School of Medicine, University of Western Australia, Perth, WA 6872, Australia
- Correspondence: (T.W.); (F.Z.)
| | - Fengqiu Zhang
- Henan Key Laboratory of Ion-Beam Bioengineering, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
- Correspondence: (T.W.); (F.Z.)
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Cold Atmospheric Plasma Jet Treatment Improves Human Keratinocyte Migration and Wound Closure Capacity without Causing Cellular Oxidative Stress. Int J Mol Sci 2022; 23:ijms231810650. [PMID: 36142561 PMCID: PMC9504313 DOI: 10.3390/ijms231810650] [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: 08/03/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
Cold Atmospheric Plasma (CAP) is an emerging technology with great potential for biomedical applications such as sterilizing equipment and antitumor strategies. CAP has also been shown to improve skin wound healing in vivo, but the biological mechanisms involved are not well known. Our study assessed a possible effect of a direct helium jet CAP treatment on keratinocytes, in both the immortalized N/TERT-1 human cell line and primary keratinocytes obtained from human skin samples. The cells were covered with 200 µL of phosphate buffered saline and exposed to the helium plasma jet for 10−120 s. In our experimental conditions, micromolar concentrations of hydrogen peroxide, nitrite and nitrate were produced. We showed that long-time CAP treatments (≥60 s) were cytotoxic, reduced keratinocyte migration, upregulated the expression of heat shock protein 27 (HSP27) and induced oxidative cell stress. In contrast, short-term CAP treatments (<60 s) were not cytotoxic, did not affect keratinocyte proliferation and differentiation, and did not induce any changes in mitochondria, but they did accelerate wound closure in vitro by improving keratinocyte migration. In conclusion, these results suggest that helium-based CAP treatments improve wound healing by stimulating keratinocyte migration. The study confirms that CAP could be a novel therapeutic method to treat recalcitrant wounds.
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Limanowski R, Yan D, Li L, Keidar M. Preclinical Cold Atmospheric Plasma Cancer Treatment. Cancers (Basel) 2022; 14:cancers14143461. [PMID: 35884523 PMCID: PMC9316208 DOI: 10.3390/cancers14143461] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/30/2022] [Accepted: 07/12/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Cold atmospheric plasma (CAP) is generated in a rapid yet low-energy input streamer-discharge process at atmospheric pressure conditions. CAP is an ionized gas with a low ionization level and plenty of reactive species and radicals. These reactive components, and their near-room temperature nature, make CAP a powerful tool in medical applications, particularly cancer therapy. Here, we summarized the latest development and status of preclinical applications of CAP in cancer therapy, which may guide further clinical studies of CAP-based cancer therapy. Abstract CAP is an ionized gas generated under atmospheric pressure conditions. Due to its reactive chemical components and near-room temperature nature, CAP has promising applications in diverse branches of medicine, including microorganism sterilization, biofilm inactivation, wound healing, and cancer therapy. Currently, hundreds of in vitro demonstrations of CAP-based cancer treatments have been reported. However, preclinical studies, particularly in vivo studies, are pivotal to achieving a final clinical application. Here, we comprehensively introduced the research status of the preclinical usage of CAP in cancer treatment, by primarily focusing on the in vivo studies over the past decade. We summarized the primary research strategies in preclinical and clinical studies, including transdermal CAP treatment, post-surgical CAP treatment, CAP-activated solutions treatment, and sensitization treatment to drugs. Finally, the underlying mechanism was discussed based on the latest understanding.
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Affiliation(s)
- Ruby Limanowski
- Department of Biomedical Engineering, George Washington University, Washington, DC 20052, USA;
| | - Dayun Yan
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC 20052, USA;
- Correspondence: (D.Y.); (M.K.)
| | - Lin Li
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC 20052, USA;
| | - Michael Keidar
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC 20052, USA;
- Correspondence: (D.Y.); (M.K.)
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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 2022; 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] [MESH Headings] [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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Air Plasma-Activated Medium Evokes a Death-Associated Perinuclear Mitochondrial Clustering. Int J Mol Sci 2022; 23:ijms23031124. [PMID: 35163042 PMCID: PMC8835529 DOI: 10.3390/ijms23031124] [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: 11/24/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 12/01/2022] Open
Abstract
Intractable cancers such as osteosarcoma (OS) and oral cancer (OC) are highly refractory, recurrent, and metastatic once developed, and their prognosis is still disappointing. Tumor-targeted therapy, which eliminates cancers effectively and safely, is the current clinical choice. Since aggressive tumors are substantially resistant to multidisciplinary therapies that target apoptosis, tumor-specific activation of another cell death modality is a promising avenue for meeting this goal. Here, we report that a cold atmospheric air plasma-activated medium (APAM) can kill OS and OC by causing a unique mitochondrial clustering. This event was named monopolar perinuclear mitochondrial clustering (MPMC) based on its characteristic unipolar mitochondrial perinuclear accumulation. The APAM caused apoptotic and nonapoptotic cell death. The APAM increased mitochondrial ROS (mROS) and cell death, and the antioxidants such as N-acetylcysteine (NAC) prevented them. MPMC occurred following mitochondrial fragmentation, which coincided with nuclear damages. MPMC was accompanied by mitochondrial lipid peroxide (mLPO) accumulation and prevented by NAC, Ferrostatin-1, and Nocodazole. In contrast, the APAM induced minimal cell death, mROS generation, mLPO accumulation, and MPMC in fibroblasts. These results suggest that MPMC occurs in a tumor-specific manner via mitochondrial oxidative stress and microtubule-driven mitochondrial motility. MPMC induction might serve as a promising target for exerting tumor-specific cytotoxicity.
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Freund E, Bekeschus S. Gas Plasma-Oxidized Liquids for Cancer Treatment: Preclinical Relevance, Immuno-Oncology, and Clinical Obstacles. IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES 2021. [DOI: 10.1109/trpms.2020.3029982] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Multi-Modal Biological Destruction by Cold Atmospheric Plasma: Capability and Mechanism. Biomedicines 2021; 9:biomedicines9091259. [PMID: 34572443 PMCID: PMC8465976 DOI: 10.3390/biomedicines9091259] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/30/2021] [Accepted: 09/11/2021] [Indexed: 01/07/2023] Open
Abstract
Cold atmospheric plasma (CAP) is a near-room-temperature, partially ionized gas composed of reactive neutral and charged species. CAP also generates physical factors, including ultraviolet (UV) radiation and thermal and electromagnetic (EM) effects. Studies over the past decade demonstrated that CAP could effectively induce death in a wide range of cell types, from mammalian to bacterial cells. Viruses can also be inactivated by a CAP treatment. The CAP-triggered cell-death types mainly include apoptosis, necrosis, and autophagy-associated cell death. Cell death and virus inactivation triggered by CAP are the foundation of the emerging medical applications of CAP, including cancer therapy, sterilization, and wound healing. Here, we systematically analyze the entire picture of multi-modal biological destruction by CAP treatment and their underlying mechanisms based on the latest discoveries particularly the physical effects on cancer cells.
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Lee HR, Lee HY, Heo J, Jang JY, Shin YS, Kim CH. Liquid-type nonthermal atmospheric plasma enhanced regenerative potential of silk-fibrin composite gel in radiation-induced wound failure. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112304. [PMID: 34474855 DOI: 10.1016/j.msec.2021.112304] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 06/29/2021] [Accepted: 07/04/2021] [Indexed: 12/15/2022]
Abstract
Delayed wound healing in heavily irradiated areas is a serious clinical complication that makes widespread therapeutic use of radiation difficult. Efficient treatment strategies are urgently required for addressing radiation-induced wound failure. Herein, we applied liquid-type nonthermal atmospheric plasma (LTP) to a silk-fibrin (SF) composite gel to investigate whether controlled release of LTP from SF hydrogel not only induced favorable cellular events in an irradiated wound bed but also modulated the SF hydrogel microstructure itself, eventually facilitating the development of a regenerative microenvironment. Scanning electron microscopy and Fourier-transform infrared spectroscopy revealed that LTP modulated the microstructures and chemical bindings of the SF gel. Improved cell viability, morphology, and extracellular matrix depositions by the LTP-treated SF hydrogel were identified with wound-healing assays and immunofluorescence staining. An irradiated random-pattern skin-flap animal model was established in six-week-old C57/BL6 mice. Full-thickness skin was flapped from the dorsum and SF hydrogel was placed underneath the raised skin flap. Postoperative histological analysis of the irradiated random-pattern skin-flap mice model suggested that LTP-treated SF hydrogel much improved wound regeneration and the inflammatory response compared to the SF hydrogel- and sham-treated groups. These results support that LTP-treated SF hydrogel significantly enhanced irradiated wound healing. Cellular and tissue reactions to released LTP from the SF hydrogel were favorable for the regenerative process of the wound; furthermore, mechanochemical properties of the SF gel were improved by LTP.
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Affiliation(s)
- Hye Ran Lee
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Hye-Young Lee
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Jaesung Heo
- Department of Radiation Oncology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Jeon Yeob Jang
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
| | - Yoo Seob Shin
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea.
| | - Chul-Ho Kim
- Department of Otolaryngology, School of Medicine, Ajou University, Suwon, Republic of Korea
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Hamouda I, Labay C, Cvelbar U, Ginebra MP, Canal C. Selectivity of direct plasma treatment and plasma-conditioned media in bone cancer cell lines. Sci Rep 2021; 11:17521. [PMID: 34471164 PMCID: PMC8410816 DOI: 10.1038/s41598-021-96857-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/10/2021] [Indexed: 11/09/2022] Open
Abstract
Atmospheric pressure plasma jets have been shown to impact several cancer cell lines, both in vitro and in vivo. These effects are based on the biochemistry of the reactive oxygen and nitrogen species generated by plasmas in physiological liquids, referred to as plasma-conditioned liquids. Plasma-conditioned media are efficient in the generation of reactive species, inducing selective cancer cell death. However, the concentration of reactive species generated by plasma in the cell culture media of different cell types can be highly variable, complicating the ability to draw precise conclusions due to the differential sensitivity of different cells to reactive species. Here, we compared the effects of direct and indirect plasma treatment on non-malignant bone cells (hOBs and hMSCs) and bone cancer cells (SaOs-2s and MG63s) by treating the cells directly or exposing them to previously treated cell culture medium. Biological effects were correlated with the concentrations of reactive species generated in the liquid. A linear increase in reactive species in the cell culture medium was observed with increased plasma treatment time independent of the volume treated. Values up to 700 µM for H2O2 and 140 µM of NO2- were attained in 2 mL after 15 min of plasma treatment in AdvDMEM cell culture media. Selectivity towards bone cancer cells was observed after both direct and indirect plasma treatments, leading to a decrease in bone cancer cell viability at 72 h to 30% for the longest plasma treatment times while maintaining the survival of non-malignant cells. Therefore, plasma-conditioned media may represent the basis for a potentially novel non-invasive technique for bone cancer therapy.
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Affiliation(s)
- Inès Hamouda
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, and Research Centre for Biomedical Engineering (CREB), Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, 08019, Barcelona, Spain
- Barcelona Research Centre in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu, 08034, Barcelona, Spain
| | - Cédric Labay
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, and Research Centre for Biomedical Engineering (CREB), Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, 08019, Barcelona, Spain
- Barcelona Research Centre in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu, 08034, Barcelona, Spain
| | - Uroš Cvelbar
- Department of Gaseous Electronics (F-6), Jožef Stefan Institute, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, and Research Centre for Biomedical Engineering (CREB), Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, 08019, Barcelona, Spain
- Barcelona Research Centre in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Institute for Bioengineering of Catalonia, c/Baldiri i Reixach 10-12, 08028, Barcelona, Spain
| | - Cristina Canal
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, and Research Centre for Biomedical Engineering (CREB), Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 10-14, 08019, Barcelona, Spain.
- Barcelona Research Centre in Multiscale Science and Engineering, UPC, Barcelona, Spain.
- Institut de Recerca Sant Joan de Déu, 08034, Barcelona, Spain.
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Okazaki Y, Tanaka H, Matsumoto KI, Hori M, Toyokuni S. Non-thermal plasma-induced DMPO-OH yields hydrogen peroxide. Arch Biochem Biophys 2021; 705:108901. [PMID: 33964248 DOI: 10.1016/j.abb.2021.108901] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/14/2021] [Accepted: 04/29/2021] [Indexed: 12/26/2022]
Abstract
Recent developments in electronics have enabled the medical applications of non-thermal plasma (NTP), which elicits reactive oxygen species (ROS) and reactive nitrogen species (RNS), such as hydroxyl radical (●OH), hydrogen peroxide (H2O2), singlet oxygen (1O2), superoxide (O2●-), ozone, and nitric oxide at near-physiological temperatures. In preclinical studies or human clinical trials, NTP promotes blood coagulation, eradication of bacterial, viral and biofilm-related infections, wound healing, and cancer cell death. To elucidate the solution-phase biological effects of NTP in the presence of biocompatible reducing agents, we employed electron paramagnetic resonance (EPR) spectroscopy to quantify ●OH using a spin-trapping probe, 5,5-dimethyl-1-pyrroline-N-oxide (DMPO); 1O2 using a fluorescent probe; and O2●- and H2O2 using luminescent probes in the presence of thiols or tempol. NTP-induced ●OH was significantly scavenged by dithiothreitol (DTT), reduced glutathione (GSH), and oxidized glutathione (GSSG) in 2 or 5 mM DMPO. NTP-induced O2●- was significantly scavenged by 10 μM DTT and GSH, while 1O2 was not efficiently scavenged by these compounds. GSSG degraded H2O2 more effectively than GSH and DTT, suggesting that the disulfide bonds reacted with H2O2. In the presence of 1-50 mM DMPO, NTP-induced H2O2 quantities were unchanged. The inhibitory effect of tempol concentration (50 and 100 μM) on H2O2 production was observed in 1 and 10 mM DMPO, whereas it became ineffective in 50 mM DMPO. Furthermore, DMPO-OH did not interact with tempol. These results suggest that DMPO and tempol react competitively with O2●-. Further studies are warranted to elucidate the interaction between NTP-induced ROS and biomolecules.
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Affiliation(s)
- Yasumasa Okazaki
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Showa-Ku, Nagoya, 466-8550, Japan.
| | - Hiromasa Tanaka
- Center for Low-temperature Plasma Sciences, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan; Center for Advanced Medicine and Clinical Research, Nagoya University Graduate School of Medicine, Showa-Ku, Nagoya, 466-8550, Japan
| | - Ken-Ichiro Matsumoto
- Quantitative RedOx Sensing Group, Department of Radiation Regulatory Science Research, National Institute of Radiological Sciences, Quantum Life and Medical Science Directorate, National Institutes for Quantum and Radiological Science and Technology, Chiba, 263-8555, Japan
| | - Masaru Hori
- Center for Low-temperature Plasma Sciences, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Shinya Toyokuni
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Showa-Ku, Nagoya, 466-8550, Japan; Center for Low-temperature Plasma Sciences, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan.
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14
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Ando T, Suzuki-Karasaki M, Suzuki-Karasaki M, Ichikawa J, Ochiai T, Yoshida Y, Haro H, Suzuki-Karasaki Y. Combined Anticancer Effect of Plasma-Activated Infusion and Salinomycin by Targeting Autophagy and Mitochondrial Morphology. Front Oncol 2021; 11:593127. [PMID: 34150606 PMCID: PMC8212785 DOI: 10.3389/fonc.2021.593127] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 05/11/2021] [Indexed: 01/10/2023] Open
Abstract
Non-thermal atmospheric pressure plasma (NTAPP)-activated liquids have emerged as new promising anticancer agents because they preferentially injure malignant cells. Here, we report plasma-activated infusion (PAI) as a novel NTAPP-based anti-neoplastic agent. PAI was prepared by irradiating helium NTAP to form a clinically approved infusion fluid. PAI dose-dependently killed malignant melanoma and osteosarcoma cell lines while showing much lower cytotoxic effects on dermal and lung fibroblasts. We found that PAI and salinomycin (Sal), an emerging anticancer stem cell agent, mutually operated as adjuvants. The combined administration of PAI and Sal was much more effective than single-agent application in reducing the growth and lung metastasis of osteosarcoma allografts with minimal adverse effects. Mechanistically, PAI explicitly induced necroptosis and increased the phosphorylation of receptor-interacting protein 1/3 rapidly and transiently. PAI also suppressed the ambient autophagic flux by activating the mammalian target of the rapamycin pathway. PAI increased the phosphorylation of Raptor, Rictor, and p70-S6 kinase, along with decreased LC3-I/II expression. In contrast, Sal promoted autophagy. Moreover, Sal exacerbated the mitochondrial network collapse caused by PAI, resulting in aberrant clustering of fragmented mitochondrial in a tumor-specific manner. Our findings suggest that combined administration of PAI and Sal is a promising approach for treating these apoptosis-resistant cancers.
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Affiliation(s)
- Takashi Ando
- Department of Orthopaedic Surgery, Yamanashi University School of Medicine, Yamanashi, Japan
| | - Manami Suzuki-Karasaki
- Department of Research and Development, Plasma ChemiBio Laboratory, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi, Japan
| | - Miki Suzuki-Karasaki
- Department of Research and Development, Plasma ChemiBio Laboratory, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi, Japan
| | - Jiro Ichikawa
- Department of Orthopaedic Surgery, Yamanashi University School of Medicine, Yamanashi, Japan
| | - Toyoko Ochiai
- Department of Research and Development, Plasma ChemiBio Laboratory, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi, Japan.,Department of Dermatology, Nihon University Hospital, Tokyo, Japan
| | - Yukihiro Yoshida
- Department of Orthopaedic Surgery, Nihon University School of Medicine, Nihon University Orthopaedic Surgery, Tokyo, Japan
| | - Hirotaka Haro
- Department of Orthopaedic Surgery, Yamanashi University School of Medicine, Yamanashi, Japan
| | - Yoshihiro Suzuki-Karasaki
- Department of Research and Development, Plasma ChemiBio Laboratory, Plasma ChemiBio Laboratory, Nasushiobara, Tochigi, Japan
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15
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Bekeschus S. Combined Toxicity of Gas Plasma Treatment and Nanoparticles Exposure in Melanoma Cells In Vitro. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:806. [PMID: 33809825 PMCID: PMC8004114 DOI: 10.3390/nano11030806] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 12/31/2022]
Abstract
Despite continuous advances in therapy, cancer remains a deadly disease. Over the past years, gas plasma technology emerged as a novel tool to target tumors, especially skin. Another promising anticancer approach are nanoparticles. Since combination therapies are becoming increasingly relevant in oncology, both gas plasma treatment and nanoparticle exposure were combined. A series of nanoparticles were investigated in parallel, namely, silica, silver, iron oxide, cerium oxide, titanium oxide, and iron-doped titanium oxide. For gas plasma treatment, the atmospheric pressure argon plasma jet kINPen was utilized. Using three melanoma cell lines, the two murine non-metastatic B16F0 and metastatic B16F10 cells and the human metastatic B-Raf mutant cell line SK-MEL-28, the combined cytotoxicity of both approaches was identified. The combined cytotoxicity of gas plasma treatment and nanoparticle exposure was consistent across all three cell lines for silica, silver, iron oxide, and cerium oxide. In contrast, for titanium oxide and iron-doped titanium oxide, significantly combined cytotoxicity was only observed in B16F10 cells.
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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
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16
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Adachi T, Matsuda Y, Ishii R, Kamiya T, Hara H. Ability of plasma-activated acetated Ringer's solution to induce A549 cell injury is enhanced by a pre-treatment with histone deacetylase inhibitors. J Clin Biochem Nutr 2020; 67:232-239. [PMID: 33293763 PMCID: PMC7705077 DOI: 10.3164/jcbn.19-104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 01/20/2020] [Indexed: 01/13/2023] Open
Abstract
Non-thermal plasma (NTP) is applicable to living cells and has emerged as a novel technology for cancer therapy. NTP affect cells not only by direct irradiation, but also by an indirect treatment with previously prepared plasma-activated liquid. Histone deacetylase (HDAC) inhibitors have the potential to enhance susceptibility to anticancer drugs and radiation because these reagents decondense the compact chromatin structure by neutralizing the positive charge of the histone tail. The aim of the present study was to demonstrate the advantage of the combined application of plasma-activated acetated Ringer’s solution (PAA) and HDAC inhibitors on A549 cancer cells. PAA maintained its ability for at least 1 week stored at any temperature tested. Cell death was enhanced more by combined regimens of PAA and HDAC inhibitors, such as trichostatin A (TSA) and valproic acid (VPA), than by a single PAA treatment and was accompanied by ROS production, DNA breaks, and mitochondria dysfunction through a caspase-independent pathway. These phenomena induced the depletion of ATP and elevations in intracellular calcium concentrations. The sensitivities of HaCaT cells as normal cells to PAA were less than that of A549 cells. These results suggest that HDAC inhibitors synergistically induce the sensitivity of cancer cells to PAA.
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Affiliation(s)
- Tetsuo Adachi
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Yumiko Matsuda
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Rika Ishii
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Tetsuro Kamiya
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Hirokazu Hara
- Laboratory of Clinical Pharmaceutics, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
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17
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Dai X, Bazaka K, Thompson EW, Ostrikov K(K. Cold Atmospheric Plasma: A Promising Controller of Cancer Cell States. Cancers (Basel) 2020; 12:cancers12113360. [PMID: 33202842 PMCID: PMC7696697 DOI: 10.3390/cancers12113360] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/18/2020] [Accepted: 10/30/2020] [Indexed: 12/21/2022] Open
Abstract
Simple Summary Cancer treatment is complicated by the distinct phenotypic attractor states in which cancer cells exist within individual tumors, and inherent plasticity of cells in transiting between these states facilitates the acquisition of drug-resistant and more stem cell-like phenotypes in cancer cells. Controlling these crucial transition switches is therefore critical for the long-term success of any cancer therapy. This paper highlights the most promising avenues for controlling cancer state transition events by cold atmospheric plasma (CAP) to enable the development of efficient tools for cancer prevention and management. The key switches in carcinogenesis can be used to halt or reverse cancer progression, and understanding how CAP can modulate these processes is critical for the development of CAP-based strategies for cancer prevention, detection and effective treatment. Abstract Rich in reactive oxygen and nitrogen species, cold atmospheric plasma has been shown to effectively control events critical to cancer progression; selectively inducing apoptosis, reducing tumor volume and vasculature, and halting metastasis by taking advantage of, e.g., synergies between hydrogen peroxide and nitrites. This paper discusses the efficacy, safety and administration of cold atmospheric plasma treatment as a potential tool against cancers, with a focus on the mechanisms by which cold atmospheric plasma may affect critical transitional switches that govern tumorigenesis: the life/death control, tumor angiogenesis and epithelial–mesenchymal transition, and drug sensitivity spectrum. We introduce the possibility of modeling cell transitions between the normal and cancerous states using cold atmospheric plasma as a novel research avenue to enhance our understanding of plasma-aided control of oncogenesis.
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Affiliation(s)
- Xiaofeng Dai
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
- Wuhan Ammunition Life-Tech Company, Ltd., Wuhan 430200, China
- Hospital of Xi’an Jiaotong University, Xi’an 710061, China
- Correspondence: ; Tel.: +86-181-6887-0169
| | - Kateryna Bazaka
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT 2600, Australia;
| | - Erik W. Thompson
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4059, Australia; (E.W.T.); (K.O.)
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD 4059, Australia
- Translational Research Institute, Woolloongabba, QLD 4102, Australia
| | - Kostya (Ken) Ostrikov
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4059, Australia; (E.W.T.); (K.O.)
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4000, Australia
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18
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Yan D, Wang Q, Malyavko A, Zolotukhin DB, Adhikari M, Sherman JH, Keidar M. The anti-glioblastoma effect of cold atmospheric plasma treatment: physical pathway v.s. chemical pathway. Sci Rep 2020; 10:11788. [PMID: 32678153 PMCID: PMC7366727 DOI: 10.1038/s41598-020-68585-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 06/26/2020] [Indexed: 12/21/2022] Open
Abstract
Cold atmospheric plasma (CAP), a near room temperature ionized gas, has shown potential application in many branches of medicine, particularly in cancer treatment. In previous studies, the biological effect of CAP on cancer cells and other mammalian cells has been based solely on the chemical factors in CAP, particularly the reactive species. Therefore, plasma medicine has been regarded as a reactive species-based medicine, and the physical factors in CAP such as the thermal effect, ultraviolet irradiation, and electromagnetic effect have been regarded as ignorable factors. In this study, we investigated the effect of a physical CAP treatment on glioblastoma cells. For the first time, we demonstrated that the physical factors in CAP could reinstate the positive selectivity on CAP-treated astrocytes. The positive selectivity was a result of necrosis, a new cell death in glioblastoma cells characterized by the leak of bulk water from the cell membrane. The physically-based CAP treatment overcomed a large limitation of the traditional chemically based CAP treatment, which had complete dependence on the sensitivity of cells to reactive species. The physically-based CAP treatment is a potential non-invasive anti-tumor tool, which may have wide application for tumors located in deeper tissues.
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Affiliation(s)
- Dayun Yan
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA.
| | - Qihui Wang
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
| | - Alisa Malyavko
- School of Medicine and Health Science, George Washington University, Washington, DC, 20052, USA
| | - Denis B Zolotukhin
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
| | - Manish Adhikari
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
| | - Jonathan H Sherman
- Neurosurgery, School of Medicine and Health Science, George Washington University, Washington, DC, 20052, USA
| | - Michael Keidar
- Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA.
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19
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Lin L, Wang L, Liu Y, Xu C, Tu Y, Zhou J. Non‑thermal plasma inhibits tumor growth and proliferation and enhances the sensitivity to radiation in vitro and in vivo. Oncol Rep 2018; 40:3405-3415. [PMID: 30272342 PMCID: PMC6196603 DOI: 10.3892/or.2018.6749] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 09/17/2018] [Indexed: 12/17/2022] Open
Abstract
Cancer is a major disease currently endangering the entire world population. Morbidity and mortality have increased substantially during recent decades. Radiotherapy is a primary treatment for malignant tumors, however side-effects and tumor cell resistance to ionizing radiation reduce the efficacy of radiotherapy. In recent years, non-thermal plasma (NTP) technology been used to treat cancer. In this study, we investigated the toxic effects of NTP on normal cells and tumor cells. We explored the inhibitory effect of NTP on tumor cell proliferation and evaluated the radiation-sensitizing effects of NTP on tumor cells and its mechanisms. In short, we examined the effect of NTP-combined radiation on proliferation, the cell cycle, apoptosis and DNA damage in normal and cancer cells. We found that NTP inhibited proliferation and induced apoptosis in tumor cells. NTP was more lethal to tumor cells than to normal cells. We found promising synergies of NTP with radiotherapy on cancer cells owing to their combined cytotoxic effects by generating ROS, inducing cell cycle arrest and apoptosis. NTP may be a new candidate for the treatment of cancer.
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Affiliation(s)
- Lin Lin
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Lili Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Yandong Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Chao Xu
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Yu Tu
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Juying Zhou
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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20
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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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21
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Cao C, Fan R, Chen M, Li X, Xing M, Zhu F, Xue H, Wang K, Xu S. Inflammatory Response Occurs in Veins of Broiler Chickens Treated with a Selenium Deficiency Diet. Biol Trace Elem Res 2018; 183:361-369. [PMID: 28871485 DOI: 10.1007/s12011-017-1145-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/25/2017] [Indexed: 01/28/2023]
Abstract
Selenium (Se) has been indicated to prevent chronic diseases including cancer, cardiovascular disease, and type 2 diabetes. However, a few studies have indicated that Se deficiency can induce vascular diseases. Thus, in the present study, we investigated the effect of Se deficiency on vascular pathology. A total of 60 male broiler chickens were randomly divided into 2 groups (n = 30). The control group (C group) was fed a basic diet, and the Se-deficient group (L group) was fed a Se-deficient, corn-soy-based diet. Changes in messenger RNA (mRNA) and protein levels of inflammatory factors and inflammation-related cytokines were examined by both RT-PCR and Western blot analysis. Our results indicate that the mRNA and protein levels of inflammatory factors and inflammation-related cytokines in the L group were significantly changed in the vein. In addition, principal component analysis (PCA) was used to define the most important parameters that could be used as key factors. The in vitro experiments also demonstrated that Se can enhance the anti-inflammatory ability of vein endothelial cells. In conclusion, Se deficiency induces an inflammatory response by modulating inflammatory factors and inflammation-related cytokines.
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Affiliation(s)
- Changyu Cao
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
- College of Life Science, Foshan University, Foshan, Guangdong, 528231, People's Republic of China
| | - Ruifeng Fan
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Menghao Chen
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xiaojing Li
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Mengyuan Xing
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Fating Zhu
- National Selenium-Rich Products Quality Supervision and Inspection Center, Enshi, 445000, People's Republic of China
| | - Hua Xue
- National Selenium-Rich Products Quality Supervision and Inspection Center, Enshi, 445000, People's Republic of China
| | - Kai Wang
- College of Life Science, Foshan University, Foshan, Guangdong, 528231, People's Republic of China.
| | - Shiwen Xu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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22
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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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23
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Ito T, Ando T, Suzuki-Karasaki M, Tokunaga T, Yoshida Y, Ochiai T, Tokuhashi Y, Suzuki-Karasaki Y. Cold PSM, but not TRAIL, triggers autophagic cell death: A therapeutic advantage of PSM over TRAIL. Int J Oncol 2018; 53:503-514. [PMID: 29845256 PMCID: PMC6017219 DOI: 10.3892/ijo.2018.4413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 03/26/2018] [Indexed: 01/03/2023] Open
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and cold plasma-stimulated medium (PSM) are promising novel anticancer tools due to their strong anticancer activities and high tumor-selectivity. The present study demonstrated that PSM and TRAIL may trigger autophagy in human malignant melanoma and osteosarcoma cells. Live-cell imaging revealed that even under nutritional and stress-free conditions, these cells possessed a substantial level of autophagosomes, which were localized in the cytoplasm separately from tubular mitochondria. In response to cytotoxic levels of PSM, the mitochondria became highly fragmented, and aggregated and colocalized with the autophagosomes. The cytotoxic effects of PSM were suppressed in response to various pharmacological autophagy inhibitors, including 3-methyladenine (3-MA) and bafilomycin A1, thus indicating the induction of autophagic cell death (ACD). Lethal levels of PSM also resulted in non-apoptotic, non-autophagic cell death in a reactive oxygen species-dependent manner under certain circumstances. Furthermore, TRAIL exhibited only a modest cytotoxicity toward these tumor cells, and did not induce ACD and mitochondrial aberration. The combined use of TRAIL and subtoxic concentrations of 3-MA resulted in decreased basal autophagy, increased mitochondrial aberration, colocalization with autophagosomes and apoptosis. These results indicated that PSM may induce ACD, whereas TRAIL may trigger cytoprotective autophagy that compromises apoptosis. To the best of our knowledge, the present study is the first to demonstrate that PSM can induce ACD in human cancer cells. These findings provide a rationale for the advantage of PSM over TRAIL in the destruction of apoptosis-resistant melanoma and osteosarcoma cells.
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Affiliation(s)
- Tomohisa Ito
- Department of Orthopedic Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Takashi Ando
- Department of Orthopedic Surgery, Yamanashi University School of Medicine, Yamanashi, Chuo, Yamanashi 409-3898, Japan
| | - Miki Suzuki-Karasaki
- Department of Orthopedic Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Tomohiko Tokunaga
- Division of General Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Yukihiro Yoshida
- Department of Orthopedic Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Toyoko Ochiai
- Department of Dermatology, Nihon University Hospital, Tokyo 101-8309, Japan
| | - Yasuaki Tokuhashi
- Department of Orthopedic Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
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24
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Tokunaga T, Ando T, Suzuki-Karasaki M, Ito T, Onoe-Takahashi A, Ochiai T, Soma M, Suzuki-Karasaki Y. Plasma-stimulated medium kills TRAIL-resistant human malignant cells by promoting caspase-independent cell death via membrane potential and calcium dynamics modulation. Int J Oncol 2018; 52:697-708. [PMID: 29393427 PMCID: PMC5807047 DOI: 10.3892/ijo.2018.4251] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/28/2017] [Indexed: 12/15/2022] Open
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and cold plasma-stimulated medium (PSM) have been shown to exhibit tumor-selective cytotoxicity and have emerged as promising new tools for cancer treatment. However, to date, at least to the best of our knowledge, no data are available as to which substance is more potent in killing cancer cells. Thus, in this study, we systematically compared their abilities to kill human malignant cells from different origins. We found that PSM dose-dependently killed TRAIL-resistant melanoma, osteosarcoma and neuroblastoma cells. Moreover, PSM had little cytotoxicity toward osteoblasts. PSM was more potent than TRAIL in inducing caspase-3/7 activation, mitochondrial network aberration and caspase-independent cell death. We also found that PSM was more potent in inducing plasma membrane depolarization (PMD) and disrupting endoplasmic-mitochondrial Ca2+ homeostasis. Moreover, persistent PMD was caused by different membrane-depolarizing agents; the use of the anti-type II diabetes drug, glibenclamide, alone caused mitochondrial fragmentation and enhanced TRAIL-induced Ca2+ modulation, mitochondrial network abnormalities and caspase-independent cell killing. These results demonstrate that PSM has a therapeutic advantage over TRAIL owing to its greater capacity to evoke caspase-independent cell death via mitochondrial network aberration by disrupting membrane potential and Ca2+ homeostasis. These findings may provide a strong rationale for developing PSM as a novel approach for the treatment of TRAIL-resistant malignant cells.
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Affiliation(s)
- Tomohiko Tokunaga
- Division of General Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Takashi Ando
- Department of Orthopedic Surgery, Yamanashi University School of Medicine, Chuo, Yamanashi 409-3898, Japan
| | | | - Tomohisa Ito
- Department of Orthopedic Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | | | - Toyoko Ochiai
- Department of Dermatology, Nihon University Hospital, Tokyo 101-8309, Japan
| | - Masayoshi Soma
- Division of General Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan
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Cao C, Fan R, Zhao J, Zhao X, Yang J, Zhang Z, Xu S. Impact of exudative diathesis induced by selenium deficiency on LncRNAs and their roles in the oxidative reduction process in broiler chick veins. Oncotarget 2017; 8:20695-20705. [PMID: 28157700 PMCID: PMC5400537 DOI: 10.18632/oncotarget.14971] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/24/2017] [Indexed: 02/07/2023] Open
Abstract
Selenium deficiency may induce exudative diathesis (ED) in broiler chick, and this damage is closely related to oxidative damage. Long noncoding RNA (LncRNA) can regulate the redox state in vivo. The aim of the present study was to clarify the LncRNA expression profile in broiler veins and filter and verify the LncRNAs related to oxidative damage of ED. This study established an ED model induced by selenium deficiency and presented the expression and characterization of LncRNAs in normal and ED samples. A total of 15412 LncRNAs (including 8052 novel LncRNAs) were generated in six cDNA libraries using the Illumina Hi-Seq 4000 platform. 635 distinct changes in LncRNAs (up-regulated fold change > 1.5, down-regulated fold change < 0.67 and differentially expressed LncRNAs) were filtered. Gene ontology enrichment on LncRNAs target genes showed that the oxidative reduction process was important. This study also defined and verified 19 target mRNAs of 23 LncRNAs related to the oxidative reduction process. The in vivo and vitro experiments also demonstrated these 23 LncRNAs can participate in the oxidative reduction process. This study presents LncRNAs expression profile in broiler chick veins for the first time and confirmed 23 LncRNAs involving in the vein oxidative damage in ED.
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Affiliation(s)
- Changyu Cao
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Ruifeng Fan
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Jinxin Zhao
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xia Zhao
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Jie Yang
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Ziwei Zhang
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Shiwen Xu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, P. R. China.,Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, P. R. China
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26
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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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27
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Shi L, Yu L, Zou F, Hu H, Liu K, Lin Z. Gene expression profiling and functional analysis reveals that p53 pathway-related gene expression is highly activated in cancer cells treated by cold atmospheric plasma-activated medium. PeerJ 2017; 5:e3751. [PMID: 28852598 PMCID: PMC5572956 DOI: 10.7717/peerj.3751] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 08/08/2017] [Indexed: 12/31/2022] Open
Abstract
Background Cold atmospheric-pressure plasma (CAP) has been considered a promising strategy for anti-cancer treatment. Traditionally, CAP was employed to kill cancer cells or tumor tissues by direct irradiation. However, CAP has some disadvantages such as infiltration capacity and storage convenience. Recently, plasma-activated medium (PAM) was used as an alternative strategy to treat cancer cells or tumors. The novel PAM approach has potential as an anti-cancer therapy. Objective To reveal the global activation of signaling pathways in oral cancer cells induced by PAM. Methods Oral squamous cell line SCC15 were treated by PAM and gene expression profiles were evaluated by using RNA-seq. Functional analyses were employed to reveal the global responses of SCC15 cells with PAM stimulation. QRT-PCR and Western blot were carried out to validate the expression levels of selected genes. Results More than 6G clean data per sample were obtained in PAM-treated SCC15 cells. A total of 934 differentially expressed genes (DEGs) were identified and GO analysis implicated the deep involvement of biological process. KEGG mapping further clustered 40 pathways, revealing that “p53 pathway” was significantly enriched. SCC15 cells were commonly used as a p53-null cell line. Therefore, the enriched p53 pathway-related genes in our analysis might be activated by other stimulators, in a p53-independent manner. Gene set enrichment analysis (GSEA) was also performed to evaluate changes at the gene-sets level. The results demonstrated not only the high engagement of “p53 pathway” but also the involvement of novel pathways such as hypoxia pathway. Conclusions The present study elucidates the transcriptomic changes of PAM treated SCC15 cells, containing highly enriched DEGs involved in “p53 pathway”. Our analysis in this work not only provides genomic resources for future studies but also gives novel insights to uncover the molecular mechanism of PAM stimulation.
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Affiliation(s)
- Lei Shi
- School of Life Sciences, Chongqing University, Chongqing, PR China
| | - Lihua Yu
- School of Life Sciences, Chongqing University, Chongqing, PR China
| | - Fagui Zou
- School of Life Sciences, Chongqing University, Chongqing, PR China
| | - Huimin Hu
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, PR China
| | - Kun Liu
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, PR China
| | - Zhenghong Lin
- School of Life Sciences, Chongqing University, Chongqing, PR China
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28
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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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29
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Lipid droplets exhaustion with caspases activation in HeLa cells cultured in plasma-activated medium observed by multiplex coherent anti-Stokes Raman scattering microscopy. Biointerphases 2017; 12:031006. [DOI: 10.1116/1.4997170] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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30
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The Specific Vulnerabilities of Cancer Cells to the Cold Atmospheric Plasma-Stimulated Solutions. Sci Rep 2017; 7:4479. [PMID: 28667316 PMCID: PMC5493667 DOI: 10.1038/s41598-017-04770-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 05/18/2017] [Indexed: 01/02/2023] Open
Abstract
Cold atmospheric plasma (CAP), a novel promising anti-cancer modality, has shown its selective anti-cancer capacity on dozens of cancer cell lines in vitro and on subcutaneous xenograft tumors in mice. Over the past five years, the CAP-stimulated solutions (PSS) have also shown their selective anti-cancer effect over different cancers in vitro and in vivo. The solutions used to make PSS include several bio-adaptable solutions, mainly cell culture medium and simple buffered solutions. Both the CAP-stimulated medium (PSM) and the CAP-stimulated buffered solution (PSB) are able to significantly kill cancer cells in vitro. In this study, we systematically compared the anti-cancer effect of PSM and PSB over pancreatic adenocarcinoma cells and glioblastoma cells. We demonstrated that pancreatic cancer cells and glioblastoma cells were specifically vulnerable to PSM and PSB, respectively. The specific response such as the rise of intracellular reactive oxygen species of two cancer cell lines to the H2O2-containing environments might result in the specific vulnerabilities to PSM and PSB. In addition, we demonstrated a basic guideline that the toxicity of PSS on cancer cells could be significantly modulated through controlling the dilutability of solution.
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31
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Wada N, Ikeda JI, Tanaka H, Sakakita H, Hori M, Ikehara Y, Morii E. Effect of plasma-activated medium on the decrease of tumorigenic population in lymphoma. Pathol Res Pract 2017; 213:773-777. [PMID: 28554762 DOI: 10.1016/j.prp.2017.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 04/08/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022]
Abstract
Nonequilibrium atmospheric pressure plasma (NEAPP) is a novel approach for blood coagulation, wound healing, and tumor elimination. NEAPP not only directly but also indirectly affects living cells via the medium exposed to NEAPP-yielding devises, called plasma-activated medium (PAM). The conservable and portable PAM serves as an alternative and advantageous approach over direct NEAPP. Here we examined the effect of PAM on lymphoplasmacytic lymphoma (LPL) cell lines. We found that PAM induced plasma cell differentiation and reduced tumorigenic population. PAM increased the expression level of PRDM1α, which is a transcription factor promoting plasma cell differentiation, suggesting that plasma cell differentiation of LPL might be mediated by PRDM1α. We previously reported that plasma cell component of LPL is vulnerable to apoptosis and less tumorigenic. These findings suggested that PAM treatment might become a novel therapy against LPL by inducing the transition from tumorigenic to non-tumorigenic population.
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Affiliation(s)
- Naoki Wada
- Department of Pathology, Osaka University Graduate School of Medicine, Suita, 565-0871, Japan
| | - Jun-Ichiro Ikeda
- Department of Pathology, Osaka University Graduate School of Medicine, Suita, 565-0871, Japan
| | - Hiromasa Tanaka
- Institute of Innovation for Future Society, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Hajime Sakakita
- Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8568, Japan
| | - Masaru Hori
- Institute of Innovation for Future Society, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Yuzuru Ikehara
- Biotechnology Research Institute for Drug Discovery, AIST, Tsukuba, 305-8568, Japan; Departement of Pathology, Graduate School of Medicine, Chiba University, Chiba, 107-0052, Japan
| | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Suita, 565-0871, Japan.
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32
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Cytoprotective effects of mild plasma-activated medium against oxidative stress in human skin fibroblasts. Sci Rep 2017; 7:42208. [PMID: 28169359 PMCID: PMC5294635 DOI: 10.1038/srep42208] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/03/2017] [Indexed: 12/16/2022] Open
Abstract
Non-thermal atmospheric pressure plasma (NTAPP) has recently been applied to living cells and tissues and has emerged as a novel technology for medical applications. NTAPP affects cells not only directly, but also indirectly with previously prepared plasma-activated medium (PAM). The objective of this study was to demonstrate the preconditioning effects of “mild PAM” which was prepared under relatively mild conditions, on fibroblasts against cellular injury generated by a high dose of hydrogen peroxide (H2O2). We observed the preconditioning effects of mild PAM containing approximately 50 μM H2O2. Hydrogen peroxide needs to be the main active species in mild PAM for it to exert preconditioning effects because the addition of catalase to mild PAM eliminated these effects. The nuclear translocation and recruitment of nuclear factor erythroid 2-related factor 2 (Nrf2) to antioxidant response elements (ARE) in heme oxygenase 1 (HO-1) promoters and the up-regulation of HO-1 were detected in fibroblasts treated with mild PAM. The addition of ZnPP, a HO-1-specific inhibitor, or the knockdown of Nrf2 completely abrogated the preconditioning effects. Our results demonstrate that mild PAM protects fibroblasts from oxidative stress by up-regulating HO-1, and the H2O2-induced activation of the Nrf2-ARE pathway needs to be involved in this reaction.
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33
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Su Y, Yang Y, Huang Y. Loss of ppr3, ppr4, ppr6, or ppr10 perturbs iron homeostasis and leads to apoptotic cell death in Schizosaccharomyces pombe. FEBS J 2017; 284:324-337. [PMID: 27886462 DOI: 10.1111/febs.13978] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 10/19/2016] [Accepted: 11/23/2016] [Indexed: 12/31/2022]
Abstract
Pentatricopeptide repeat (PPR) proteins characterized by tandem arrays of a degenerate 35-amino-acid repeat belong to a large family of RNA-binding proteins that are involved in post-transcriptional control of organelle gene expression. PPR proteins are ubiquitous in eukaryotes, and particularly prevalent in higher plants. Schizosaccharomyces pombe has 10 PPR proteins. Among them, ppr3, ppr4, ppr6, and ppr10 participate in mitochondrial post-transcriptional processes and are required for mitochondrial electron transport chain (ETC) function. In the present work, we showed that deletion of ppr3, ppr4, ppr6, or ppr10 led to apoptotic cell death, as revealed by DAPI and Annexin V-FITC staining. These mutants also exhibited elevated levels of reactive oxygen species (ROS). RNA sequencing (RNA-seq) and quantitative RT-PCR analyses revealed that deletion of ppr10 affected critical biological processes. In particular, a core set of genes involved in iron uptake and/or iron homeostasis was elevated in the Δppr10 mutant, suggesting an elevated level of intracellular iron in the mutant. Consistent with this notion, Δppr3, Δppr4, Δppr6, and Δppr10 mutants exhibited increased sensitivity to iron. Furthermore, the iron chelator, bathophenanthroline disulfonic acid, but not the calcium chelator EGTA, nearly restored the viabilities of Δppr3, Δppr4, Δppr6, and Δppr10 mutants, and reduced ROS levels in the mutants. These results show for the first time that deletion of a ppr gene leads to perturbation of iron homeostasis. Our results also suggest that disrupted iron homeostasis in Δppr3, Δppr4, Δppr6, and Δppr10 mutants may lead to an increase in the level of ROS and induction of apoptotic cell death in S. pombe. DATABASE The RNA-seq data have been deposited in the National Center for Biotechnology Information (NCBI) BioProject database (accession number SRP091623) and Gene Expression Omnibus (GEO) database (accession number GSE90144).
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Affiliation(s)
- Yang Su
- Jiangsu Key Laboratory for Microbes and Functional Genomics, College of Life Sciences, Nanjing Normal University, China
| | - Yanmei Yang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, College of Life Sciences, Nanjing Normal University, China
| | - Ying Huang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, College of Life Sciences, Nanjing Normal University, China
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