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Xie Y, Wang B, Du L, Wang Y, Xu C, Zhang H, Wen K, Liu Q, Katsube T. ANTP-SMACN7 fusion peptide alone induced high linear energy transfer irradiation radiosensitization in non-small cell lung cancer cell lines. Cancer Biol Med 2021; 19:j.issn.2095-3941.2020.0569. [PMID: 34546667 PMCID: PMC9334756 DOI: 10.20892/j.issn.2095-3941.2020.0569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/12/2021] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE The aim of the present study was to investigate the mechanisms responsible for the radiation-sensitizing effect of antennapedia proteins, ANTP-SMACN7, on lung cancer cells treated with accelerated carbon and Fe particle irradiation. METHODS The ANTP-SMACN7 fusion peptide was synthesized and linked to fluorescein isothiocyanate to determine its ability to penetrate cells. A549 and NCI-H460 cells, human non-small cell lung cancer (NSCLC) cell lines, were irradiated with X-ray or high linear energy transfer (LET) irradiation with or without ANTP-SMACN7 treatment. Cellular survival, apoptosis, and protein expression were studied by colony formation assays, flow cytometry, and western blot analyses, respectively. RESULTS ANTP-SMACN7 fusion proteins entered the cells and promoted A549 and NCI-H460 cell high LET irradiation radiosensitization. High LET irradiation was more efficient for clonogenic cell killing and the induction of apoptosis (P < 0.05). Treatment with ANTP-SMACN7 significantly reduced the A549 and NCI-H460 cell clone-forming percentages and increased apoptosis through inhibition of the X-linked inhibitor of apoptosis protein and the activation of caspase-3 and caspase-9. CONCLUSIONS Regarding pharmaceutical radiosensitization, these findings provided a way to improve high-LET clinical radiotherapy for NSCLC patients.
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Grants
- 2018YFE0205100 National Key R&D Program of China
- 2018YFE0205101 National Key R&D Program of China
- 11605260 National Natural Science Foundation of China
- 31670859 National Natural Science Foundation of China
- 201903D321115 Key Research and Development Projects of Shanxi Province
- 2018-RC-66 Science and Technology Talent Project in Lanzhou
- 2020RCCX0038 Science and Technology Project of Chengguan District of Lanzhou
- 2017-I2M-1-016 CAMS Innovation Fund for Medical Science
- JP15K21745 Ministry of Education, Culture, Sports, and Science Technology Grant-in-Aid for Scientific Research on Innovative Areas with Heavy Ions at NIRS-HIMAC, Japan
- 15H05944 Ministry of Education, Culture, Sports, and Science Technology Grant-in-Aid for Scientific Research on Innovative Areas with Heavy Ions at NIRS-HIMAC, Japan
- 15H05935 (Living in Space) Ministry of Education, Culture, Sports, and Science Technology Grant-in-Aid for Scientific Research on Innovative Areas with Heavy Ions at NIRS-HIMAC, Japan
- 14J313 Research Project
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Affiliation(s)
- Yi Xie
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
| | - Bing Wang
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Liqing Du
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Yan Wang
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Chang Xu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Hong Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
| | - Kaixue Wen
- Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Taiyuan 030031, China
| | - Qiang Liu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Takanori Katsube
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
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Yan J, Xie Y, Wang F, Chen Y, Zhang J, Dou Z, Gan L, Li H, Si J, Sun C, Di C, Zhang H. Carbon ion combined with tigecycline inhibits lung cancer cell proliferation by inducing mitochondrial dysfunction. Life Sci 2020; 263:118586. [PMID: 33065148 DOI: 10.1016/j.lfs.2020.118586] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/01/2020] [Accepted: 10/06/2020] [Indexed: 02/07/2023]
Abstract
AIMS Mitochondrial dysfunction is receiving considerable attention due to irreplaceable biological function of mitochondria. Ionizing radiation and tigecycline (TIG) alone can cause mitochondrial dysfunction, playing important role in tumor therapy. However, prior studies fail to investigate combined mechanism of carbon ion irradiation (IR) and TIG on tumor proliferation inhibition. The study aimed to explore the combined effects of both on autophagy and apoptosis. MATERIALS AND METHODS NSCLC cells A549 and H1299 were treated with carbon ion, TIG, or both. Cell survival rate, autophagy, apoptosis, expression of mitochondrial signaling proteins were determined by clone formation assay, immunofluorescence of LC3B, flow cytometry and western blotting, respectively; ATP content, mitochondrial membrane potential (MMP) and Ca2+ level in mitochondria were used to assessed mitochondrial function. KEY FINDINGS Results showed IR combined TIG inhibited cells proliferation by increasing apoptosis in both cells and enhancing autophagy in H1299 cells. Additionally, combination treatment induced the most severe mitochondrial dysfunction by sharply reducing ATP, MMP and increasing Ca2+ level of mitochondria. Up-regulation and down-regulation of mitochondrial translation proteins (EF-Tu, GFM1 and MRPS12) expression affected apoptosis and autophagy, while the level of p-mTOR was consistent with their expression in both cell types. In A549 cells, p-AMPK level decreased while p-Akt and p-mTOR increased after combination treatment. SIGNIFICANCE Overall, our results showed that p-Akt and p-AMPK antagonistically targeted p-mTOR to regulate mitochondrial translation proteins to affect autophagy and apoptosis. Furthermore, this study suggests that combination of carbon ion and TIG is a potential therapeutic option against tumors.
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Affiliation(s)
- Junfang Yan
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China; Graduate School of University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yi Xie
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Fang Wang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China; Graduate School of University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yuhong Chen
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China; Graduate School of University of Chinese Academy of Sciences, Beijing 100039, China
| | - Jinhua Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China; Graduate School of University of Chinese Academy of Sciences, Beijing 100039, China
| | - Zhihui Dou
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China; Graduate School of University of Chinese Academy of Sciences, Beijing 100039, China
| | - Lu Gan
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China; Graduate School of University of Chinese Academy of Sciences, Beijing 100039, China
| | - Hongyan Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Jing Si
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Chao Sun
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Cuixia Di
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Hong Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, Gansu, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China.
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Priwitaningrum DL, Jentsch J, Bansal R, Rahimian S, Storm G, Hennink WE, Prakash J. Apoptosis-inducing peptide loaded in PLGA nanoparticles induces anti-tumor effects in vivo. Int J Pharm 2020; 585:119535. [PMID: 32534162 DOI: 10.1016/j.ijpharm.2020.119535] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 01/17/2023]
Abstract
Induction of apoptosis in tumor cells specifically within the complex tumor microenvironment is highly desirable to kill them efficiently and to enhance the effects of chemotherapy. Second mitochondria-derived activator of caspase (Smac) is a key pro-apoptotic pathway which can be activated with a Smac mimetic peptide. However, in vivo application of peptides is hampered by several limitations such as poor pharmacokinetics, rapid elimination, enzymatic degradation, and insufficient intracellular delivery. In this study, we developed a nanosystem to deliver a Smac peptide to tumor by passive targeting. We first synthesized a chimeric peptide that consists of the 8-mer Smac peptide and a 14-mer cell penetrating peptide (CPP) and then encapsulated the Smac-CPP into polymeric nanoparticles (Smac-CPP-NPs). In vitro, Smac-CPP-NPs were rapidly internalized by 4T1 mammary tumor cells and subsequently released Smac-CPP into the cells, as shown with fluorescence microscopy. Furthermore, Smac-CPP-NPs induced apoptosis in tumor cells, as confirmed with cell viability and caspase 3/7 assays. Interestingly, combination of Smac-CPP-NPs with doxorubicin (dox), a clinically used cytostatic drug, showed combined effects in vitro in 4T1 cells. The effect was significantly better than that of SMAC-CPP-NPs alone as well as empty nanoparticles and dox. In vivo, co-treatment with Smac-CPP-NPs and free dox reduced the tumor growth to 85%. Furthermore, the combination of Smac-CPP-NPs and free dox showed reduced proliferating tumor cells (Ki-67 staining) and increased apoptotic cells (cleaved caspase-3 staining) in tumors. In conclusion, the present study demonstrates that the intracellular delivery of Smac-mimetic peptide using nanoparticle system can be an interesting strategy to attenuate the tumor growth and to potentiate the therapeutic efficacy of chemotherapy in vivo.
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Affiliation(s)
- Dwi L Priwitaningrum
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands; Department of Pharmaceutics, Faculty of Pharmacy, University of Sumatera Utara, Medan, Indonesia
| | - Julian Jentsch
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Ruchi Bansal
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Sima Rahimian
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Wim E Hennink
- Department of Pharmaceutics, Faculty of Pharmacy, University of Sumatera Utara, Medan, Indonesia
| | - Jai Prakash
- Targeted Therapeutics and Nanomedicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands.
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Zhang R, Sun H, Wang H, Zhang W, Geng K, Liu Q, Wang P. ANTP-SmacN7 fusion peptide-induced radiosensitization in A549 cells and its potential mechanisms. Thorac Cancer 2020; 11:1271-1279. [PMID: 32155687 PMCID: PMC7180582 DOI: 10.1111/1759-7714.13393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 12/15/2022] Open
Abstract
Background Radioresistance in tumors limits the curative effect of the radiotherapy. Mimetic compounds of second mitochondria‐derived activator of caspase (Smac) are potential new tumor radiation‐sensitizing drugs because they can increase radiation‐induced tumor cell apoptosis. Here, we observed the radiosensitization effect of a new Smac mimetic Antennapedia protein (ANTP)‐SmacN7 fusion peptide in A549 cells and investigated the underlying mechanisms behind the effects of this protein on tumor cells. Methods The ANTP‐SmacN7 fusion peptide was synthesized and linked with fluorescein isothiocyanate to observe the protein's ability to penetrate cells. A549 cells were divided into the control, radiation‐only, ANTP‐SmacN7‐only and ANTP‐SmacN7 + radiation groups. The cells were exposed to 0, 2, 4 and 6 Gy, with 20 μmol/L of ANTP‐SmacN7. The radiation‐sensitizing effects of the ANTP‐SmacN7 fusion proteins were observed via clonogenic assay. Apoptosis was detected using flow cytometry. A comet assay was used to assess DNA damage. The levels and degrees of cytochrome‐c, PARP, H2AX, caspase‐8, caspase‐3, and caspase‐9 activation were detected via western blot assay. The radiation sensitization of the fusion peptide, expression of γ‐H2AX and C‐PARP were compared after adding the caspase inhibitor, Z‐VAD. Results ANTP‐SmacN7 fusion proteins entered the cells and promoted A549 cell radiosensitization. Treatment with ANTP‐SmacN7 + radiation significantly reduced the A549 cell clone‐forming rate, increased the cytochrome‐c, cleaved caspase‐8, cleaved caspase‐3 and cleaved caspase‐9 expression levels, promoted caspase activation, and increased the rate of radiation‐induced apoptosis. The ANTP‐SmacN7 fusion peptide significantly increased radiation‐induced double‐stranded DNA rupture in the A549 cells and increased DNA damage. Adding Z‐VAD reduced the fusion peptide's proapoptotic effect but not the level of double‐stranded DNA breakage. Conclusions The ANTP‐SmacN7 fusion peptide exerted a remarkable radiosensitization effect on A549 cells. This protein may reduce tumor cell radioresistance by inducing caspase activation and may be a potential new Smac mimetic that can be applied in radiosensitization therapy.
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Affiliation(s)
- Rongxin Zhang
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.,Radiotherapy Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Hao Sun
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Radiation Medicine, Tianjin, China
| | - Hong Wang
- Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Biomedical Engineering, Geriatric Health Engineering Research Center, Tianjin, China
| | - Wenxue Zhang
- Radiotherapy Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Kai Geng
- Radiotherapy Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Qiang Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Radiation Medicine, Tianjin, China
| | - Ping Wang
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
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5
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Fan R, Chuan D, Hou H, Chen H, Han B, Zhang X, Zhou L, Tong A, Xu J, Guo G. Development of a hybrid nanocarrier-recognizing tumor vasculature and penetrating the BBB for glioblastoma multi-targeting therapy. NANOSCALE 2019; 11:11285-11304. [PMID: 31165845 DOI: 10.1039/c9nr01320b] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The success of glioma chemotherapy is hampered by poor drug penetration ability across the blood-brain barrier (BBB) and low intratumoral drug concentration. Novel tumor-targeted delivery systems are useful in specifically accumulating in the tumor foci and penetrating into the glioma core after entering into the brain. Here we show that a multi-targeting hybrid nanocarrier (Pep-MLHA HNPs) system based on hyaluronic acid (HA)-modified polymer and a functional peptide possesses multi-target capability and stronger penetration ability into the core of three-dimensional tumor spheroids, could migrate efficiently across the BBB in vitro. The intensity of the Pep-MLHA HNPs after transporting across the BBB was 5.2-fold and 5.6-fold higher than that of ML NPs in C6 and U87 cells, respectively. More interestingly, this multi-targeting hybrid system displayed high colloidal stability in PBS solution, and weak negative zeta potential (-1.99 ± 0.655 mV) minimizing nonspecific interactions with plasma proteins and promoting long-term circulation in vivo. Additionally, the multi-targeting hybrid system induced enhanced tumor localization in U87 in situ-bearing nude mice and xenograft-bearing nude mice after systemic administration. Furthermore, docetaxel (DTX)-loaded Pep-MLHA HNPs showed negligible systemic toxicity and enhanced therapeutic efficacy, with significantly improved survival rates in intracranial C6 glioma-bearing rats. The 50% survival rate of DTX/Pep-MLHA HNPs-treated rats (40 days) was significantly longer than that of rats treated with NS (22 days), Taxotere® (25 days), DTX/ML NPs (25 days), DTX/Pep NPs (32 days) and DTX/MLHA NPs (29 days). All the results suggested that the multi-targeting hybrid nanocarrier system is promising for glioma treatment.
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Affiliation(s)
- Rangrang Fan
- State Key Laboratory of Biotherapy and Cancer Center, and Department of Neurosurgery, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China.
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6
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Yan J, Xie Y, Zhang Q, Gan L, Wang F, Li H, Si J, Zhang H. Dynamic recognition and repair of DNA complex damage. J Cell Physiol 2018; 234:13014-13020. [PMID: 30537094 DOI: 10.1002/jcp.27971] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/19/2018] [Indexed: 11/11/2022]
Abstract
Irradiation (IR) can be used to treat cancer by inducing complex and irreparable DNA damage in the cancer cells, which may lead to their apoptotic death. However, little is known about the molecular mechanism of this DNA damage. Here, the non-small-cell lung cancer cell line A549 was treated with either X-ray or carbon ion combined with bleomycin (BLM). The cell survival rate, frequency of double-strand breaks (DSBs), dynamic changes in γH2AX, and p53 binding protein 1 (53BP1), and protein expression of Ku70, Rad51, and XRCC1 were determined by the clone formation assay, agarose gel electrophoresis, immunofluorescence, and western blot analysis. The results showed that the most obvious complex DSBs occurred in the carbon IR + BLM group. The number of γH2AX and 53BP1 foci in the 0.5 hr X-ray IR + BLM group was the highest (p < 0.001) among all the groups. γH2AX foci were detected in the nucleus at 0.5, 1, 2, and 4 hr, but were distributed throughout the cell at 6 hr after IR in the carbon ion IR + BLM group. The expression of Ku70 increased and XRCC1 decreased at 2 and 6 hr after IR. Our data indicate that a DNA damage frequency of 13.4/Mbp is caused by clustered DNA damage and further show a correlation between γH2AX, 53BP1, and XRCC1 levels and the extent of DNA damage. The results of this study provide insights into DNA damage recognition and a rationale for the clinical use of radiotherapy.
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Affiliation(s)
- Junfang Yan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China.,Graduate School of University of Chinese Academy of Sciences, Beijing, China
| | - Yi Xie
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Qianjing Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China.,Graduate School of University of Chinese Academy of Sciences, Beijing, China
| | - Lu Gan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China.,Graduate School of University of Chinese Academy of Sciences, Beijing, China
| | - Fang Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China.,Graduate School of University of Chinese Academy of Sciences, Beijing, China
| | - Hongyan Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Jing Si
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
| | - Hong Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou, Gansu, China
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7
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Wang Y, Guan H, Xie DF, Xie Y, Liu XD, Wang Q, Sui L, Song M, Zhang H, Zhou J, Zhou PK. Proteomic Analysis Implicates Dominant Alterations of RNA Metabolism and the Proteasome Pathway in the Cellular Response to Carbon-Ion Irradiation. PLoS One 2016; 11:e0163896. [PMID: 27711237 PMCID: PMC5053480 DOI: 10.1371/journal.pone.0163896] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 09/18/2016] [Indexed: 12/25/2022] Open
Abstract
Radiotherapy with heavy ions is considered advantageous compared to irradiation with photons due to the characteristics of the Braggs peak and the high linear energy transfer (LET) value. To understand the mechanisms of cellular responses to different LET values and dosages of heavy ion radiation, we analyzed the proteomic profiles of mouse embryo fibroblast MEF cells exposed to two doses from different LET values of heavy ion 12C. Total proteins were extracted from these cells and examined by Q Exactive with Liquid Chromatography (LC)—Electrospray Ionization (ESI) Tandem MS (MS/MS). Using bioinformatics approaches, differentially expressed proteins with 1.5 or 2.0-fold changes between different dosages of exposure were compared. With the higher the dosage and/or LET of ion irradiation, the worse response the cells were in terms of protein expression. For instance, compared to the control (0 Gy), 771 (20.2%) proteins in cells irradiated at 0.2 Gy of carbon-ion radiation with 12.6 keV/μm, 313 proteins (8.2%) in cells irradiated at 2 Gy of carbon-ion radiation with 12.6 keV/μm, and 243 proteins (6.4%) in cells irradiated at 2 Gy of carbon-ion radiation with 31.5 keV/μm exhibited changes of 1.5-fold or greater. Gene ontology (GO) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, Munich Information Center for Protein Sequences (MIPS) analysis, and BioCarta analysis all indicated that RNA metabolic processes (RNA splicing, destabilization and deadenylation) and proteasome pathways may play key roles in the cellular response to heavy-ion irradiation. Proteasome pathways ranked highest among all biological processes associated with heavy carbon-ion irradiation. In addition, network analysis revealed that cellular pathways involving proteins such as Col1a1 and Fn1 continued to respond to high dosages of heavy-ion irradiation, suggesting that these pathways still protect cells against damage. However, pathways such as those involving Ikbkg1 responded better at lower dosages than at higher dosages, implying that cell damage would occur when the networks involving these proteins stop responding. Our investigation provides valuable proteomic information for elucidating the mechanism of biological effects induced by carbon ions in general.
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Affiliation(s)
- Yu Wang
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Hua Guan
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Da-Fei Xie
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yi Xie
- Department of Heavy Ion Radiation Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xiao-Dan Liu
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Qi Wang
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Li Sui
- China Institute of Atomic Energy, Beijing 102413, China
| | - Man Song
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
| | - Hong Zhang
- Department of Heavy Ion Radiation Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jianhua Zhou
- iBioinfo Groups, Lexington, Massachusetts 02421, United States of America
- Department of Neuroregeneration, Nantong University, Nantong, China
- * E-mail: (PKZ); (JZ)
| | - Ping-Kun Zhou
- Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiation Biology, Beijing Institute of Radiation Medicine, Beijing, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
- * E-mail: (PKZ); (JZ)
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Liu B, Du L, Xu C, Wang Y, Wang Q, Song Z, Sun X, Wang J, Liu Q. [Radiosensitization Induced by ANTP-SmacN7 Fusion Peptide in H460 Cell Line]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2016; 19:241-6. [PMID: 27215450 PMCID: PMC5973049 DOI: 10.3779/j.issn.1009-3419.2016.05.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
背景与目的 肿瘤的辐射耐受制约了放疗疗效,第二个线粒体衍生的半胱氨酸蛋白酶激活剂(Second mitochondria-derived activator of caspase, Smac)蛋白类似物可明显提高辐射诱导的肿瘤细胞凋亡,有望成为新型肿瘤辐射增敏药物。本研究旨在探讨新型Smac蛋白类似物ANTP-SmacN7融合肽对肺癌细胞系H460的辐射增敏作用。 方法 合成ANTP-SmacN7融合肽,连接荧光素FITC以观察融合肽能否进入细胞。对数生长期H460细胞分为空白对照组、单纯照射组、ANTP-SmacN7组和照射联合ANTP-SmacN7组,单纯照射组给予0 Gy、2 Gy、4 Gy、6 Gy照射,照射联合ANTP-SmacN7组中ANTP-SmacN7的浓度为20 μmol/L,WST-1测定H460细胞的增殖。流式细胞仪测定细胞处理后24 h和48 h的细胞凋亡率。Western blot实验检测caspase3和cleaved caspase3的表达水平。 结果 ANTP-SmacN7融合能够顺利进入细胞,且能够增强H460细胞的辐射敏感性(F=25.1,P < 0.01,增敏比为1.86),照射联合ANTP-SmacN7可明显降低H460细胞的克隆形成率(χ2=45.2, P < 0.01; χ2=40.3, P < 0.01),提高cleaved caspase3的表达量,促进caspase3的活化,增加辐射诱导的细胞凋亡率。 结论 ANTP-SmacN7融合肽可明显提高H460细胞的辐射敏感性,作为一种新的Smac蛋白类似物有望用于肿瘤的辐射增敏治疗。
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Affiliation(s)
- Baona Liu
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
| | - Liqing Du
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
| | - Chang Xu
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
| | - Yan Wang
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
| | - Qin Wang
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
| | - Zhiyi Song
- Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, China
| | - Xiaohui Sun
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
| | - Jinhan Wang
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
| | - Qiang Liu
- Institute of Radiation Medicine of Chinese Academy of Medical Science and Peking Union Medical College, Tianjin Key Lab of Radiation and Molecular Nuclear Medicine, Tianjin 300192, China
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Ge W, Yin Q, Xian H. Wogonin Induced Mitochondrial Dysfunction and Endoplasmic Reticulum Stress in Human Malignant Neuroblastoma Cells Via IRE1α-Dependent Pathway. J Mol Neurosci 2015; 56:652-62. [PMID: 25740014 DOI: 10.1007/s12031-015-0530-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 02/17/2015] [Indexed: 01/09/2023]
Abstract
Wogonin, a flavonoid isolated from Scutellaria baicalensis Georgi, has been reported to exhibit a variety of biological effects including anti-cancer effects. It has a pro-apoptotic role in many cancer types. However, the molecular mechanisms of wogonin in treating neuroblastoma remain elusive. In the present study, two malignant neuroblastoma cell lines (SK-N-BE2 and IMR-32 cells) were treated with different doses of wogonin (0-150 μM). Wogonin showed significant cytotoxic effects in SK-N-BE2 and IMR-32 cells in a dose- and time-dependent manner. Treatment of SK-N-BE2 and IMR-32 cells with 75 μΜ wogonin for 48 h significantly promoted apoptosis, the release of cytochrome c, altered the expression of certain members of Bcl-2 family (Bcl-2, Bax and Bid), and increased the activation of caspase-3, caspase-8, caspase-9, and PARP-1, which demonstrated that the cytotoxic effect of wogonin in SK-N-BE2 and IMR-32 cells is mediated by mitochondrial dysfunction. Moreover, wogonin induced the expression of endoplasmic reticulum (ER) stress-related proteins (GRP78/Bip and GRP94/gp96) and activation of caspase-12 and caspase-4 in SK-N-BE2 and IMR-32 cells. In addition, wogonin increase the expression of IRE1α and TRAF2, and phosphorylation of ASK1 and JNK in SK-N-BE2 and IMR-32 cells. Knockdown of IRE1α by siRNA not only markedly inhibited wogonin-induced up-regulation of IRE1α and TRAF2, and phosphorylation of ASK1 and JNK but also reduced wogonin-induced cytotoxic effects and mitochondrial dysfunction in SK-N-BE2 and IMR-32 cells. These results indicated that wogonin could induce apoptosis, mitochondrial dysfunction, and ER stress in SK-N-BE2 and IMR-32 cells by modulating IRE1α-dependent pathway.
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Affiliation(s)
- Wenliang Ge
- Department of Pediatric Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
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