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Lee RH, Oh JD, Hwang JS, Lee HK, Shin D. Antitumorigenic effect of insect-derived peptide poecilocorisin-1 in human skin cancer cells through regulation of Sp1 transcription factor. Sci Rep 2021; 11:18445. [PMID: 34531430 PMCID: PMC8446052 DOI: 10.1038/s41598-021-97581-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 08/18/2021] [Indexed: 12/28/2022] Open
Abstract
Malignant melanoma is highly resistant to conventional treatments and is one of the most aggressive types of skin cancers. Conventional cancer treatments are limited due to drug resistance, tumor selectivity, and solubility. Therefore, new treatments with fewer side effects and excellent effects should be developed. In previous studies, we have analyzed antimicrobial peptides (AMPs), which showed antibacterial and anti-inflammatory effects in insects, and some AMPs also exhibited anticancer efficacy. Anticancer peptides (ACPs) are known to have fewer side effects and high anticancer efficacy. In this study, the insect-derived peptide poecilocorisin-1 (PCC-1) did not induce toxicity in the human epithelial cell line HaCaT, but its potential as an anticancer agent was confirmed through specific effects of antiproliferation, apoptosis, and cell cycle arrest in two melanoma cell lines, SK-MEL-28 and G361. Additionally, we discovered a novel anticancer mechanism of insect-derived peptides in melanoma through the regulation of transcription factor Sp1 protein, which is overexpressed in cancer, apoptosis, and cell cycle-related proteins. Taken together, this study aims to clarify the anticancer efficacy and safety of insect-derived peptides and to present their potential as future therapeutic agents.
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Affiliation(s)
- Ra Ham Lee
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Jae-Don Oh
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 55365, Republic of Korea
| | - Hak-Kyo Lee
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, 54896, Republic of Korea. .,The Animal Molecular Genetics and Breeding Center, Jeonbuk National University, Jeonju, 54896, Republic of Korea. .,Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju, 54896, Republic of Korea.
| | - Donghyun Shin
- The Animal Molecular Genetics and Breeding Center, Jeonbuk National University, Jeonju, 54896, Republic of Korea. .,Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju, 54896, Republic of Korea.
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2
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Cheng X, Murthy SRK, Zhuang T, Ly L, Jones O, Basadonna G, Keidar M, Kanaan Y, Canady J. Canady Helios Cold Plasma Induces Breast Cancer Cell Death by Oxidation of Histone mRNA. Int J Mol Sci 2021; 22:ijms22179578. [PMID: 34502492 PMCID: PMC8430908 DOI: 10.3390/ijms22179578] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/24/2021] [Accepted: 09/01/2021] [Indexed: 12/29/2022] Open
Abstract
Breast cancer is the most common cancer among women worldwide. Its molecular receptor marker status and mutational subtypes complicate clinical therapies. Cold atmospheric plasma is a promising adjuvant therapy to selectively combat many cancers, including breast cancer, but not normal tissue; however, the underlying mechanisms remain unexplored. Here, four breast cancer cell lines with different marker status were treated with Canady Helios Cold Plasma™ (CHCP) at various dosages and their differential progress of apoptosis was monitored. Inhibition of cell proliferation, induction of apoptosis, and disruption of the cell cycle were observed. At least 16 histone mRNA types were oxidized and degraded immediately after CHCP treatment by 8-oxoguanine (8-oxoG) modification. The expression of DNA damage response genes was up-regulated 12 h post-treatment, indicating that 8-oxoG modification and degradation of histone mRNA during the early S phase of the cell cycle, rather than DNA damage, is the primary cause of cancer cell death induced by CHCP. Our report demonstrates for the first time that CHCP effectively induces cell death in breast cancer regardless of subtyping, through histone mRNA oxidation and degradation during the early S phase of the cell cycle.
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Affiliation(s)
- Xiaoqian Cheng
- Jerome Canady Research Institute for Advanced Biological and Technological Sciences, Takoma Park, MD 20912, USA; (X.C.); (S.R.K.M.); (T.Z.); (L.L.); (O.J.)
| | - Saravana R. K. Murthy
- Jerome Canady Research Institute for Advanced Biological and Technological Sciences, Takoma Park, MD 20912, USA; (X.C.); (S.R.K.M.); (T.Z.); (L.L.); (O.J.)
| | - Taisen Zhuang
- Jerome Canady Research Institute for Advanced Biological and Technological Sciences, Takoma Park, MD 20912, USA; (X.C.); (S.R.K.M.); (T.Z.); (L.L.); (O.J.)
| | - Lawan Ly
- Jerome Canady Research Institute for Advanced Biological and Technological Sciences, Takoma Park, MD 20912, USA; (X.C.); (S.R.K.M.); (T.Z.); (L.L.); (O.J.)
| | - Olivia Jones
- Jerome Canady Research Institute for Advanced Biological and Technological Sciences, Takoma Park, MD 20912, USA; (X.C.); (S.R.K.M.); (T.Z.); (L.L.); (O.J.)
| | - Giacomo Basadonna
- School of Medicine, University of Massachusetts, Worcester, MA 01605, USA;
| | - Michael Keidar
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA;
| | - Yasmine Kanaan
- Microbiology Department, Howard University, Washington, DC 20060, USA;
- Howard University Cancer Center, Howard University, Washington, DC 20060, USA
| | - Jerome Canady
- Jerome Canady Research Institute for Advanced Biological and Technological Sciences, Takoma Park, MD 20912, USA; (X.C.); (S.R.K.M.); (T.Z.); (L.L.); (O.J.)
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA;
- Department of Surgery, Holy Cross Hospital, Silver Spring, MD 20910, USA
- Correspondence: ; Tel.: +1-(301)-270-0147
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3
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Cold Atmospheric Plasma Changes the Amino Acid Composition of Solutions and Influences the Anti-Tumor Effect on Melanoma Cells. Int J Mol Sci 2021; 22:ijms22157886. [PMID: 34360651 PMCID: PMC8346059 DOI: 10.3390/ijms22157886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/09/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
Cold Atmospheric Plasma (CAP) is an ionized gas near room temperature. Its anti-tumor effect can be transmitted either by direct treatment or mediated by a plasma-treated solution (PTS), such as treated standard cell culture medium, which contains different amino acids, inorganic salts, vitamins and other substances. Despite extensive research, the active components in PTS and its molecular or cellular mechanisms are not yet fully understood. The purpose of this study was the measurement of the reactive species in PTS and their effect on tumor cells using different plasma modes and treatment durations. The PTS analysis yielded mode- and dose-dependent differences in the production of reactive oxygen and nitrogen species (RONS), and in the decomposition and modification of the amino acids Tyrosine (Tyr) and Tryptophan (Trp). The Trp metabolites Formylkynurenine (FKyn) and Kynurenine (Kyn) were produced in PTS with the 4 kHz (oxygen) mode, inducing apoptosis in Mel Im melanoma cells. Nitrated derivatives of Trp and Tyr were formed in the 8 kHz (nitrogen) mode, elevating the p16 mRNA expression and senescence-associated ß-Galactosidase staining. In conclusion, the plasma mode has a strong impact on the composition of the active components in PTS and affects its anti-tumor mechanism. These findings are of decisive importance for the development of plasma devices and the effectiveness of tumor treatment.
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Antitumor Effects in Gas Plasma-Treated Patient-Derived Microtissues—An Adjuvant Therapy for Ulcerating Breast Cancer? APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11104527] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Despite global research and continuous improvement in therapy, cancer remains a challenging disease globally, substantiating the need for new treatment avenues. Medical gas plasma technology has emerged as a promising approach in oncology in the last years. Several investigations have provided evidence of an antitumor action in vitro and in vivo, including our recent work on plasma-mediated reduction of breast cancer in mice. However, studies of gas plasma exposure on patient-derived tumors with their distinct microenvironment (TME) are scarce. To this end, we here investigated patient-derived breast cancer tissue after gas plasma-treated ex vivo. The tissues were disjoint to pieces smaller than 100 µm, embedded in collagen, and incubated for several days. The viability of the breast cancer tissue clusters and their outgrowth into their gel microenvironment declined with plasma treatment. This was associated with caspase 3-dependent apoptotic cell death, paralleled by an increased expression of the anti-metastatic adhesion molecule epithelial (E)-cadherin. Multiplex chemokine/cytokine analysis revealed a marked decline in the release of the interleukins 6 and 8 (IL-6, IL-8) and monocyte-chemoattractant-protein 1 (MCP) known to promote a cancer-promoting milieu in the TME. In summary, we provide here, for the first time, evidence of a beneficial activity of gas plasma exposure on human patient-derived breast cancer tissue.
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Bekeschus S, Clemen R, Haralambiev L, Niessner F, Grabarczyk P, Weltmann KD, Menz J, Stope M, von Woedtke T, Gandhirajan R, Schmidt A. The Plasma-Induced Leukemia Cell Death is Dictated by the ROS Chemistry and the HO-1/CXCL8 Axis. IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES 2021. [DOI: 10.1109/trpms.2020.3020686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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6
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Clemen R, Freund E, Mrochen D, Miebach L, Schmidt A, Rauch BH, Lackmann J, Martens U, Wende K, Lalk M, Delcea M, Bröker BM, Bekeschus S. Gas Plasma Technology Augments Ovalbumin Immunogenicity and OT-II T Cell Activation Conferring Tumor Protection in Mice. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003395. [PMID: 34026437 PMCID: PMC8132054 DOI: 10.1002/advs.202003395] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/22/2021] [Indexed: 05/04/2023]
Abstract
Reactive oxygen species (ROS/RNS) are produced during inflammation and elicit protein modifications, but the immunological consequences are largely unknown. Gas plasma technology capable of generating an unmatched variety of ROS/RNS is deployed to mimic inflammation and study the significance of ROS/RNS modifications using the model protein chicken ovalbumin (Ova vs oxOva). Dynamic light scattering and circular dichroism spectroscopy reveal structural modifications in oxOva compared to Ova. T cells from Ova-specific OT-II but not from C57BL/6 or SKH-1 wild type mice presents enhanced activation after Ova addition. OxOva exacerbates this activation when administered ex vivo or in vivo, along with an increased interferon-gamma production, a known anti-melanoma agent. OxOva vaccination of wild type mice followed by inoculation of syngeneic B16F10 Ova-expressing melanoma cells shows enhanced T cell number and activation, decreased tumor burden, and elevated numbers of antigen-presenting cells when compared to their Ova-vaccinated counterparts. Analysis of oxOva using mass spectrometry identifies three hot spots regions rich in oxidative modifications that are associated with the increased T cell activation. Using Ova as a model protein, the findings suggest an immunomodulating role of multi-ROS/RNS modifications that may spur novel research lines in inflammation research and for vaccination strategies in oncology.
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Affiliation(s)
- Ramona Clemen
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
| | - Eric Freund
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
- Department of GeneralVisceralThoracicand Vascular SurgeryUniversity Medicine GreifswaldSauerbruchstr. DZ7Greifswald17475Germany
| | - Daniel Mrochen
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
- Department of ImmunologyUniversity Medicine GreifswaldSauerbruchstr. DZ7Greifswald17475Germany
| | - Lea Miebach
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
- Department of GeneralVisceralThoracicand Vascular SurgeryUniversity Medicine GreifswaldSauerbruchstr. DZ7Greifswald17475Germany
| | - Anke Schmidt
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
| | - Bernhard H. Rauch
- Institute of Pharmacology (C_Dat)University Medicine GreifswaldFelix‐Hausdorff‐Str. 1Greifswald17489Germany
| | - Jan‐Wilm Lackmann
- CECAD proteomics facilityUniversity of CologneJoseph‐Stelzmann‐Str. 26Cologne50931Germany
| | - Ulrike Martens
- ZIK HIKEUniversity of GreifswaldFleischmannstr. 42–44Greifswald17489Germany
- Institute of BiochemistryUniversity of GreifswaldFelix‐Hausdorff‐Str. 4Greifswald17489Germany
| | - Kristian Wende
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
| | - Michael Lalk
- Institute of BiochemistryUniversity of GreifswaldFelix‐Hausdorff‐Str. 4Greifswald17489Germany
| | - Mihaela Delcea
- ZIK HIKEUniversity of GreifswaldFleischmannstr. 42–44Greifswald17489Germany
- Institute of BiochemistryUniversity of GreifswaldFelix‐Hausdorff‐Str. 4Greifswald17489Germany
| | - Barbara M. Bröker
- Department of ImmunologyUniversity Medicine GreifswaldSauerbruchstr. DZ7Greifswald17475Germany
| | - Sander Bekeschus
- ZIK plasmatisLeibniz Institute for Plasma Science and Technology (INP)Felix‐Hausdorff‐Str. 2Greifswald17489Germany
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7
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Nakamura K, Yoshikawa N, Mizuno Y, Ito M, Tanaka H, Mizuno M, Toyokuni S, Hori M, Kikkawa F, Kajiyama H. Preclinical Verification of the Efficacy and Safety of Aqueous Plasma for Ovarian Cancer Therapy. Cancers (Basel) 2021; 13:cancers13051141. [PMID: 33799991 PMCID: PMC7962102 DOI: 10.3390/cancers13051141] [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: 12/30/2020] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 12/30/2022] Open
Abstract
Simple Summary Ovarian cancer is among the most malignant gynecologic cancers, in part because intraperitoneal recurrence occurs with high frequency due to occult metastasis. We have demonstrated a metastasis-inhibitory effect of plasma-activated medium (PAM) in ovarian cancer cells. Here, we investigated whether PAM inhibits intraperitoneal metastasis. We observed that PAM induced macrophages’ infiltration into the disseminated lesion, which was co-localized with inducible nitric oxide synthase (iNOS)-positive signal, indicating that PAM might induce M1-type macrophages. We also observed that intraperitoneal washing with plasma-activated lactate Ringer’s solution (PAL) significantly improved the overall survival rate in an ovarian cancer mouse model. Intraperitoneal washing therapy might be effective to improve clinical outcomes of ovarian cancer. Abstract Epithelial ovarian cancer (EOC) is the most lethal gynecologic malignancy. The major cause of EOC’s lethality is that intraperitoneal recurrence occurs with high frequency due to occult metastasis. We had demonstrated that plasma-activated medium (PAM) exerts a metastasis-inhibitory effect on ovarian cancer in vitro and in vivo. Here we investigated how PAM inhibits intraperitoneal metastasis. We studied PAM’s inhibition of micro-dissemination onto the omentum by performing in vivo imaging in combination with a sequential histological analysis. The results revealed that PAM induced macrophage infiltration into the disseminated lesion. The iNOS-positive signal was co-localized at the macrophages in the existing lesion, indicating that PAM might induce M1-type macrophages. This may be another mechanism of the antitumor effect through a PAM-evoked immune response. Intraperitoneal lavage with plasma-activated lactate Ringer’s solution (PAL) significantly improved the overall survival rate in an ovarian cancer mouse model. Our results demonstrated the efficiency and practicality of aqueous plasma for clinical applications.
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Affiliation(s)
- Kae Nakamura
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (F.K.); (H.K.)
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan; (H.T.); (S.T.); (M.H.)
- Correspondence: (K.N.); (N.Y.); Tel.: +81-52-744-2261 (K.N. & N.Y.)
| | - Nobuhisa Yoshikawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (F.K.); (H.K.)
- Correspondence: (K.N.); (N.Y.); Tel.: +81-52-744-2261 (K.N. & N.Y.)
| | - Yuko Mizuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (Y.M.); (M.I.); (M.M.)
| | - Miwa Ito
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (Y.M.); (M.I.); (M.M.)
| | - Hiromasa Tanaka
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan; (H.T.); (S.T.); (M.H.)
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (Y.M.); (M.I.); (M.M.)
| | - Masaaki Mizuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (Y.M.); (M.I.); (M.M.)
| | - Shinya Toyokuni
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan; (H.T.); (S.T.); (M.H.)
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan
| | - Masaru Hori
- Center for Low-Temperature Plasma Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan; (H.T.); (S.T.); (M.H.)
| | - Fumitaka Kikkawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (F.K.); (H.K.)
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan; (F.K.); (H.K.)
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8
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Ma S, Kim K, Chun S, Moon SY, Hong Y. Plasma-assisted advanced oxidation process by a multi-hole dielectric barrier discharge in water and its application to wastewater treatment. CHEMOSPHERE 2020; 243:125377. [PMID: 31760291 DOI: 10.1016/j.chemosphere.2019.125377] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 06/10/2023]
Abstract
Advanced oxidation process (AOP) is a promising technology to decolorize and reduce organic contaminants in water. It is carried out using hydroxyl radicals (•OH) with an oxidizing potential of 2.80 V. Non-thermal plasma can directly generate •OH while maintaining a low temperature, and O3, H2O2, and UV light are also generated; these are necessary for AOP. In this study, we developed a multi-hole dielectric barrier discharge (DBD) system capable of generating radicals and active species in water for assisting AOP. We confirmed the optimized operating conditions based on critical parameters, including electrical and optical properties and O3 concentration. Furthermore, we described the plasma-based AOP through experimental results. We performed wastewater treatment using the multi-hole DBD: turbidity, BOD, and COD, were reduced by 60%, 40%, and 60%, respectively, after 20 min of treatment. Finally, 99.99% of Escherichia coli were eliminated after plasma treatment.
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Affiliation(s)
- Sukhwal Ma
- Radwaste Management Center, Korea Atomic Energy Research Institute, 111, Daedeok-daero, 989 Beon-gil, Yuseong-gu, Daejeon, South Korea.
| | - Kangil Kim
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Ohsikdo-dong, Gunsan, 573-540, South Korea.
| | - Semin Chun
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Ohsikdo-dong, Gunsan, 573-540, South Korea.
| | - Se Youn Moon
- Department of Applied Plasma Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, 561-756, South Korea.
| | - Yongcheol Hong
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Ohsikdo-dong, Gunsan, 573-540, South Korea.
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9
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Yoshikawa N, Liu W, Nakamura K, Yoshida K, Ikeda Y, Tanaka H, Mizuno M, Toyokuni S, Hori M, Kikkawa F, Kajiyama H. Plasma-activated medium promotes autophagic cell death along with alteration of the mTOR pathway. Sci Rep 2020; 10:1614. [PMID: 32005941 PMCID: PMC6994502 DOI: 10.1038/s41598-020-58667-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 12/28/2019] [Indexed: 01/06/2023] Open
Abstract
The biological function of non-thermal atmospheric pressure plasma has been widely accepted in several types of cancer. We previously developed plasma-activated medium (PAM) for clinical use, and demonstrated that PAM exhibits a metastasis-inhibitory effect on ovarian cancer through reduced MMP-9 secretion. However, the anti-tumor effects of PAM on endometrial cancer remain unknown. In this study, we investigated the inhibitory effect of PAM on endometrial cancer cell viability in vitro. Our results demonstrated that AMEC and HEC50 cell viabilities were reduced by PAM at a certain PAM ratio, and PAM treatment effectively increased autophagic cell death in a concentration dependent manner. In addition, we evaluated the molecular mechanism of PAM activity and found that the mTOR pathway was inactivated by PAM. Moreover, our results demonstrated that the autophagy inhibitor MHY1485 partially inhibited the autophagic cell death induced by PAM treatment. These findings indicate that PAM decreases the viability of endometrial cancer cells along with alteration of the mTOR pathway, which is critical for cancer cell viability. Collectively, our data suggest that PAM inhibits cell viability while inducing autophagic cell death in endometrial cancer cells, representing a potential novel treatment for endometrial cancer.
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Affiliation(s)
- Nobuhisa Yoshikawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Wenting Liu
- Bell Research Center for Reproductive Health and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kae Nakamura
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kosuke Yoshida
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshiki Ikeda
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiromasa Tanaka
- Center for Low-temperature Plasma Sciences, Nagoya University, Nagoya, Japan.,Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Masaaki Mizuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Shinya Toyokuni
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaru Hori
- Center for Low-temperature Plasma Sciences, Nagoya University, Nagoya, Japan
| | - Fumitaka Kikkawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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10
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Zhao J, Ding D, Zhao G. Reduced miR-202 levels enhanced oral cancer development via targeting Sp1. Exp Ther Med 2019; 18:489-496. [PMID: 31258685 PMCID: PMC6566103 DOI: 10.3892/etm.2019.7603] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 04/18/2019] [Indexed: 12/11/2022] Open
Abstract
The current study aimed to evaluate the possible role of microRNA (miR)-202 in the development of oral cancer. First, miR-202 levels were found to be decreased in the serum and tissues of oral cancer patients compared with healthy controls. Receiver operating characteristic analysis was carried out to explore the diagnostic value of serum miR-202 for oral cancer. Overexpression of miR-202 significantly decreased the migratory capacity of SCC-9 cells, while inhibition of miR-202 markedly increased the migratory capacity of SCC-9 cells. Moreover, the invasive capacity was decreased in SCC-9 cells transfected with an miR-202 mimic. In addition, the invasive capacity was enhanced in SCC-9 cells transfected with an miR-202 inhibitor. A dual luciferase reporter assay showed that overexpression of miR-202 markedly suppressed the relative luciferase activity of the pmirGLO-SP1-3'untranslated region. Overexpression of miR-202 suppressed the protein level of Sp1, but inhibition of miR-202 markedly enhanced the protein expression of Sp1. Inhibition of miR-202 enhanced the phosphorylation of protein kinase B. Additionally, the correlations between the expression levels of Sp1 and miR-202 and the clinicopathological factors of oral cancer were analyzed. The results showed that patients with high expression of Sp1 and miR-202 progressed to earlier clinical stages, had deeper infiltration depths and were more prone to lymph node metastasis compared with the healthy controls. In conclusion, the current study presented novel data indicating that decreased miR-202 enhanced the progression of oral cancer via Sp1.
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Affiliation(s)
- Jia Zhao
- Special Clinic, Jinan Stomatology Hospital, Jinan, Shandong 250001, P.R. China
| | - Deguang Ding
- Department of Stomatology, Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250001, P.R. China
| | - Ge Zhao
- Department of Stomatology, Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250001, P.R. China
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11
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Dai X, Luo Y, Xu Y, Zhang J. Key indexes and the emerging tool for tumor microenvironment editing. Am J Cancer Res 2019; 9:1027-1042. [PMID: 31218110 PMCID: PMC6556601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023] Open
Abstract
Many cancer management approaches including immunotherapies can not achieve desirable therapeutic efficacies if targeting tumors alone or could not effectively reach tumor cells. The concept of tumor microenvironment and its induced gene reprogramming have largely extended our current understandings on the determinants of tumor initiation/progression and fostered our hope in establishing first-line therapies targeting cancer microenvironment or adjuvant therapies enhancing the efficacies of existing oncotherapeutic modalities such as immunotherapies for efficient cancer management. This review identifies key indexes of tumor microenvironment, i.e., hypoxia, acidosis, hypo-nutrition and inflammation, which collectively determine the feature and the fate of adjacent tumor cells, and proposes cold atmospheric plasma, the fourth state of matter that is largely composed of various reactive oxygen and nitrogen species, as a promising tool for tumor microenvironment editing. We propose that cold atmospheric plasma represents an emerging onco-therapeutic strategy alone or complementing existing treatment approaches given its multi-modal nature through tumor microenvironment modulation.
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Affiliation(s)
- Xiaofeng Dai
- Wuxi School of Medicine, Jiangnan UniversityWuxi, China
| | - Yini Luo
- School of Biotechnology, Jiangnan UniversityWuxi, China
| | - Ying Xu
- School of Biotechnology, Jiangnan UniversityWuxi, China
| | - Jianying Zhang
- Department of Biological Sciences, University of Texas at El PasoTexas 79968, USA
- Academy of Medical and Pharmaceutical Sciences, Zhengzhou UniversityZhengzhou, China
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12
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Freund E, Liedtke KR, van der Linde J, Metelmann HR, Heidecke CD, Partecke LI, Bekeschus S. Physical plasma-treated saline promotes an immunogenic phenotype in CT26 colon cancer cells in vitro and in vivo. Sci Rep 2019; 9:634. [PMID: 30679720 PMCID: PMC6345938 DOI: 10.1038/s41598-018-37169-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 12/05/2018] [Indexed: 02/07/2023] Open
Abstract
Metastatic colorectal cancer is the fourth most common cause of cancer death. Current options in palliation such as hyperthermic intraperitoneal chemotherapy (HIPEC) present severe side effects. Recent research efforts suggested the therapeutic use of oxidant-enriched liquid using cold physical plasma. To investigate a clinically accepted treatment regimen, we assessed the antitumor capacity of plasma-treated saline solution. In response to such liquid, CT26 murine colon cancer cells were readily oxidized and showed cell growth with subsequent apoptosis, cell cycle arrest, and upregulation of immunogenic cell death (ICD) markers in vitro. This was accompanied by marked morphological changes with re-arrangement of actin fibers and reduced motility. Induction of an epithelial-to-mesenchymal transition phenotype was not observed. Key results were confirmed in MC38 colon and PDA6606 pancreatic cancer cells. Compared to plasma-treated saline, hydrogen peroxide was inferiorly toxic in 3D tumor spheroids but of similar efficacy in 2D models. In vivo, plasma-treated saline decreased tumor burden in Balb/C mice. This was concomitant with elevated numbers of intratumoral macrophages and increased T cell activation following incubation with CT26 cells ex vivo. Being a potential adjuvant for HIPEC therapy, our results suggest oxidizing saline solutions to inactivate colon cancer cells while potentially stimulating antitumor immune responses.
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Affiliation(s)
- Eric Freund
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Kim Rouven Liedtke
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Julia van der Linde
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Hans-Robert Metelmann
- Oral and Maxillofacial Surgery/Plastic Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Claus-Dieter Heidecke
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Lars-Ivo Partecke
- Department of General, Visceral, Thoracic and Vascular Surgery, Greifswald University Medical Center, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany
| | - Sander Bekeschus
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany.
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13
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Xu H, Jiang J, Zhang J, Cheng L, Pan S, Li Y. MicroRNA-375 inhibits esophageal squamous cell carcinoma proliferation through direct targeting of SP1. Exp Ther Med 2018; 17:1509-1516. [PMID: 30867685 PMCID: PMC6396021 DOI: 10.3892/etm.2018.7106] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 09/28/2018] [Indexed: 12/20/2022] Open
Abstract
Several studies have shown that microRNA-375 (miR-375) is frequently downregulated in several types of human cancer including gastric cancer, colorectal cancer and oral squamous cell carcinoma. However, the role of miR-375 in human esophageal cancer remains unknown. In the current study, the expression level of miR-375 was analyzed in 43 esophageal squamous cell carcinoma (ESCC) tissue and matched adjacent normal tissue samples from patients with ESCC by reverse transcription-quantitative polymerase chain reaction. In addition, the expression level of miR-375 was analyzed in ESCC cell lines (KYSE450 and KYSE150) and the human esophageal epithelial cell line Het-1A by the same method. The expression level of miR-375 was significantly downregulated in ESCC tissue samples and cell lines compared with adjacent normal tissue samples and the human esophageal epithelial cell line, respectively. The effect of miR-375 on ESCC cell proliferation was detected by cell counting kit-8 (CCK-8) and colony formation assays. miR-375 overexpression significantly decreased ESCC cell proliferation and colony formation. Bioinformatics analysis was used to predict specificity protein 1 (SP1) as a target gene of miR-375 in ESCC, and this was verified by dual-luciferase assay. The present study demonstrated that SP1 regulates ESCC cell proliferation and colony formation through direct interaction with miR-375. In addition, the overall survival of patients with ESCC was analyzed using the Kaplan-Meier method and log-rank test. The results indicated that patients with ESCC with high miR-375 expression had a better survival rate compared with patients with ESCC with low miR-375 expression. Taken together, these results suggest that downregulated miR-375 promotes ESCC cell proliferation and colony formation via direct targeting of SP1, and this association may contribute to ESCC progression.
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Affiliation(s)
- Hui Xu
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China.,Department of Anesthesiology, The Third People's Hospital of Bengbu, Bengbu, Anhui 233000, P.R. China
| | - Jialong Jiang
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Jingjun Zhang
- Department of Anesthesiology, The Third People's Hospital of Bengbu, Bengbu, Anhui 233000, P.R. China
| | - Liang Cheng
- Department of Anesthesiology, The Third People's Hospital of Bengbu, Bengbu, Anhui 233000, P.R. China
| | - Song Pan
- Department of Anesthesiology, The Third People's Hospital of Bengbu, Bengbu, Anhui 233000, P.R. China
| | - Yuanhai Li
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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14
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Attri P, Han J, Choi S, Choi EH, Bogaerts A, Lee W. CAP modifies the structure of a model protein from thermophilic bacteria: mechanisms of CAP-mediated inactivation. Sci Rep 2018; 8:10218. [PMID: 29977069 PMCID: PMC6033864 DOI: 10.1038/s41598-018-28600-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 06/19/2018] [Indexed: 12/14/2022] Open
Abstract
Cold atmospheric plasma (CAP) has great potential for sterilization in the food industry, by deactivation of thermophilic bacteria, but the underlying mechanisms are largely unknown. Therefore, we investigate here whether CAP is able to denature/modify protein from thermophilic bacteria. We focus on MTH1880 (MTH) from Methanobacterium thermoautotrophicum as model protein, which we treated with dielectric barrier discharge (DBD) plasma operating in air for 10, 15 and 20 mins. We analysed the structural changes of MTH using circular dichroism, fluorescence and NMR spectroscopy, as well as the thermal and chemical denaturation, upon CAP treatment. Additionally, we performed molecular dynamics (MD) simulations to determine the stability, flexibility and solvent accessible surface area (SASA) of both the native and oxidised protein.
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Affiliation(s)
- Pankaj Attri
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610, Antwerp, Belgium
| | - Jeongmin Han
- Department of Biochemistry, College of Life Science & Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemoon-Gu, Seoul, 120-749, Korea
| | - Sooho Choi
- Department of Biochemistry, College of Life Science & Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemoon-Gu, Seoul, 120-749, Korea
| | - Eun Ha Choi
- Department of Electrical and Biological Physics, Kwangwoon University, Seoul, 01897, Korea
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610, Antwerp, Belgium.
| | - Weontae Lee
- Department of Biochemistry, College of Life Science & Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemoon-Gu, Seoul, 120-749, Korea.
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15
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Electron heating in rf capacitive discharges at atmospheric-to-subatmospheric pressures. Sci Rep 2018; 8:10217. [PMID: 29976980 PMCID: PMC6033924 DOI: 10.1038/s41598-018-27945-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 06/12/2018] [Indexed: 12/13/2022] Open
Abstract
Electron heating is a fundamental and multidisciplinary phenomenon in partially ionized gases, from the planet's ionosphere to laboratory-scale plasmas. Plasmas produced at ambient or reduced pressures have recently shown potential for scientific and industrial applications. However, electron heating, which is strongly coupled to the physicochemical properties of these plasmas, has been poorly understood. We experimentally found the rapid structural transition from non-local to local electron heating in collisional radio-frequency discharges at atmospheric-to-subatmospheric pressures. As the gas pressure decreased from 760 to 200 Torr, the time-averaged electron density increased from 1.3 × 1012 to 1.3 × 1013 cm-3, and the electron temperature decreased from 2.5 to 1.1 eV at the maximum allowable discharge current in the abnormal α-mode in the plasma bulk. The spatiotemporal evolution of the electron temperature clearly shows that the electron temperature increases uniformly throughout the bulk plasma region during sheath expansion and collapse at 760 Torr, but the electron heating weakens with sheath collapse as the gas pressure decreases.
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16
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Bekeschus S, Mueller A, Miller V, Gaipl U, Weltmann KD. Physical Plasma Elicits Immunogenic Cancer Cell Death and Mitochondrial Singlet Oxygen. IEEE TRANSACTIONS ON RADIATION AND PLASMA MEDICAL SCIENCES 2018. [DOI: 10.1109/trpms.2017.2766027] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Park JY, Park S, Choe W, Yong HI, Jo C, Kim K. Plasma-Functionalized Solution: A Potent Antimicrobial Agent for Biomedical Applications from Antibacterial Therapeutics to Biomaterial Surface Engineering. ACS APPLIED MATERIALS & INTERFACES 2017; 9:43470-43477. [PMID: 29215258 DOI: 10.1021/acsami.7b14276] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Deadly diseases caused by pathogenic bacteria and viruses have increasingly victimized humans; thus, the importance of disinfection has increased in medical settings as well as in food and agricultural industries. Plasma contains multiple bactericidal agents, including reactive species, charged particles, and photons, which can have synergistic effects. In particular, the chemicals formed in aqueous solution during plasma exposure have the potential for high antibacterial activity against various bacterial infections. Here, we report the antibiotic potency of plasma-treated water (PTW). To illustrate the applicability of PTW for disinfecting biological substances, an Escherichia coli biofilm was used. We sought to identify the chemical species in PTW and investigate their separate effects on biofilm removal. Dielectric barrier discharge in ambient air was used to prepare the PTW and treat the biofilm directly. Hydrogen peroxide, ozone, and nitrites were identified as the long-lived reactive species in the PTW, whereas hydroxyl radicals and superoxide anions were identified as the short-lived reactive species in the PTW; all these species showed an ability to disinfect in biofilm removal.
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Affiliation(s)
| | | | | | - Hae In Yong
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University , Seoul 08826, Republic of Korea
| | - Cheorun Jo
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University , Seoul 08826, Republic of Korea
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18
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Clinical Significance and Effect of lncRNA HOXA11-AS in NSCLC: A Study Based on Bioinformatics, In Vitro and in Vivo Verification. Sci Rep 2017; 7:5567. [PMID: 28717185 PMCID: PMC5514100 DOI: 10.1038/s41598-017-05856-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 06/05/2017] [Indexed: 02/08/2023] Open
Abstract
HOXA11 antisense RNA (HOXA11-AS) has been shown to be involved in tumorigenesis and development of different cancers. However, the role of HOXA11-AS in non-small cell lung cancer (NSCLC) remains unclear. In this study, we firstly explored and confirmed the expression of HOXA11-AS in NSCLC tissues and cells. Cytometry, CCK-8, cell scratch, migration, Matrigel invasion and flow cytometry assays were performed to determine the biological impact of HOXA11-AS in vitro. Furthermore, a chick embryo chorioallantoic membrane (CAM) model of NSCLC was constructed to explore the effect of HOXA11-AS on tumorigenicity and angiogenesis in vivo. Additionally, bioinformatics analyses were performed to investigate the prospective pathways of HOXA11-AS co-expressed genes. As results, HOXA11-AS was markedly highly expressed in NSCLC tissues and cells. Furthermore, the proliferation, migration, invasion, tumorigenic and angiogenic ability of NSCLC cells were all inhibited and apoptosis was induced after HOXA11-AS knock-down. HOXA11-AS RNAi also led to cell cycle arrest on G0/G1 or G2/M phase. In addition, the non-small cell lung cancer pathway might be involved in regulating the co-expressed genes of HOXA11-AS in NSCLC. These results indicate that HOXA11-AS plays pivotal roles in NSCLC and it can become a novel therapeutic direction for treating NSCLC.
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