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Wang D, Jia H, Cao H, Hou X, Wang Q, Lin J, Liu J, Yang L, Liu J. A Dual-Channel Ca 2+ Nanomodulator Induces Intracellular Ca 2+ Disorders via Endogenous Ca 2+ Redistribution for Tumor Radiosensitization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401222. [PMID: 38690593 DOI: 10.1002/adma.202401222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/21/2024] [Indexed: 05/02/2024]
Abstract
Tumor cells harness Ca2+ to maintain cellular homeostasis and withstand external stresses from various treatments. Here, a dual-channel Ca2+ nanomodulator (CAP-P-NO) is constructed that can induce irreversible intracellular Ca2+ disorders via the redistribution of tumor-inherent Ca2+ for disrupting cellular homeostasis and thus improving tumor radiosensitivity. Stimulated by tumor-overexpressed acid and glutathione, capsaicin and nitric oxide are successively escaped from CAP-P-NO to activate the transient receptor potential cation channel subfamily V member 1 and the ryanodine receptor for the influx of extracellular Ca2+ and the release of Ca2+ in the endoplasmic reticulum, respectively. The overwhelming level of Ca2+ in tumor cells not only impairs the function of organelles but also induces widespread changes in the gene transcriptome, including the downregulation of a set of radioresistance-associated genes. Combining CAP-P-NO treatment with radiotherapy achieves a significant suppression against both pancreatic and patient-derived hepatic tumors with negligible side effects. Together, the study provides a feasible approach for inducing tumor-specific intracellular Ca2+ overload via endogenous Ca2+ redistribution and demonstrates the great potential of Ca2+ disorder therapy in enhancing the sensitivity for tumor radiotherapy.
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Affiliation(s)
- Dianyu Wang
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Haixue Jia
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Hongmei Cao
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Xiaoxue Hou
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Qian Wang
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Jia Lin
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Jinjian Liu
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Lijun Yang
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
| | - Jianfeng Liu
- State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Tianjin Institutes of Health Science, Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, P. R. China
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Shimura T, Totani R, Ogasawara H, Inomata K, Sasatani M, Kamiya K, Ushiyama A. Effects of oxygen on the response of mitochondria to X-irradiation and reactive oxygen species-mediated fibroblast activation. Int J Radiat Biol 2022; 99:769-778. [PMID: 36383181 DOI: 10.1080/09553002.2023.2142980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE In living organisms, sensitivity to radiation increases in the presence of oxygen (O2) compared with that under anoxic or hypoxic conditions. Here, we investigated whether O2 concentration affected the response of mitochondria to X-rays radiation, which is associated with tumor microenvironment formation via fibroblast activation in radiation-related tumors. MATERIALS AND METHODS O2 concentrations were controlled at <5% (internal environmental oxygen condition) or anoxic levels during culture of normal human diploid lung fibroblasts TIG-3 and MRC-5. Protein expression associated with the response of mitochondria to radiation was assessed using immunostaining or western blotting. RESULTS Induction of DNA damage (marker: γ-H2A histone family member X) and mitochondrial signaling (AMP-activated protein kinase), suppression of mitochondrial metabolic activity, and generation of reactive oxygen species occurred with radiation in cells cultured under 5% and 20% O2 conditions. However, reducing O2 concentration mitigated the effects of radiation on cell growth, mitochondrial damage (parkin), induction of antioxidant responses (nuclear factor E2-related factor 2), and fibroblast activation (α-smooth muscle actin). Radiation did not affect the markers used in this study in the absence of O2. CONCLUSION O2 concentration affected the response of mitochondria to radiation and reactive oxygen species-mediated fibroblast activation. Higher O2 concentrations enhanced the effects of radiation on mitochondria in human fibroblasts. In vitro studies may overestimate in vivo radiation effects due to high O2 concentrations.
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Affiliation(s)
- Tsutomu Shimura
- Department of Environmental Health, National Institute of Public Health Wako, Saitama, Japan
| | - Rina Totani
- Meiji Pharmaceutical University, Kiyose, Tokyo, Japan
| | | | - Keiki Inomata
- Meiji Pharmaceutical University, Kiyose, Tokyo, Japan
| | - Megumi Sasatani
- Department of Experimental Oncology; Research Center for Radiation Genome Medicine; Research Institute for Radiation Biology and Medicine (RIRBM), Hiroshima University, Hiroshima, Japan
| | - Kenji Kamiya
- Department of Experimental Oncology; Research Center for Radiation Genome Medicine; Research Institute for Radiation Biology and Medicine (RIRBM), Hiroshima University, Hiroshima, Japan
| | - Akira Ushiyama
- Department of Environmental Health, National Institute of Public Health Wako, Saitama, Japan
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Jamil A, Abidin SZ, Razak KA, Zin H, Yunus MA, Rahman WN. Radiosensitization effects by bismuth oxide nanorods of different sizes in megavoltage external beam radiotherapy. Rep Pract Oncol Radiother 2021; 26:773-784. [PMID: 34760312 DOI: 10.5603/rpor.a2021.0094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 07/03/2021] [Indexed: 11/25/2022] Open
Abstract
Background Nanotechnology application has successfully reached numerous scientific breakthroughs including in radiotherapy. However, the clinical application of nanoparticles requires more diligent research primarily on the crucial parameters such as nanoparticle sizes. This study is aimed to investigate the influence of bismuth oxide nanorod (Bi2O3-NR) sizes on radiosensitization effects on MCF-7 and HeLa cell lines for megavoltage photon and electron beam radiotherapy. Materials and methods MCF-7 and HeLa cells were treated with and without 0.5 μMol/L of Bi2O3-NR of varying sizes (60, 70, 80, and 90 nm). The samples, including the control groups, were exposed to different radiation doses (0-10 Gy), using photon (6 MV and 10 MV), and electron beam (6 MeV and 12 MeV) radiotherapy. Clonogenic assay was performed, and sensitization enhancement ratio (SER) was determined from linear quadratic based cell survival curves. Results The results depicted that 60 nm Bi2O3-NR yields the most excellent SER followed by 70 nm Bi2O3-NR. Meanwhile, the 80 and 90 nm Bi2O3-NR showed an insignificant difference between treated and untreated cell groups. This study also found that MCF-7 was subjected to more cell death compared to HeLa. Conclusion 60 nm Bi2O3-NR was the optimal Bi2O3-NR size to induce radiosensitization effects for megavoltage external beam radiotherapy. The SER in photon beam radiotherapy marked the highest compared to electron beam radiotherapy due to decreased primary radiation energy from multiple radiation interaction and higher Compton scattering.
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Affiliation(s)
- Amirah Jamil
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Kelantan, Malaysia
| | - Safri Zainal Abidin
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Kelantan, Malaysia.,Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Kepala Batas, Penang Malaysia
| | - Khairunisak Abdul Razak
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - Hafiz Zin
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Kepala Batas, Penang Malaysia
| | - Muhammad Amir Yunus
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Kepala Batas, Penang Malaysia
| | - Wan Nordiana Rahman
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Kelantan, Malaysia
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4
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Rickard AG, Zhuang M, DeRosa CA, Zhang X, Dewhirst MW, Fraser CL, Palmer GM. Dual-emissive, oxygen-sensing boron nanoparticles quantify oxygen consumption rate in breast cancer cells. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:JBO-200174RR. [PMID: 33231018 PMCID: PMC7682476 DOI: 10.1117/1.jbo.25.11.116504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
SIGNIFICANCE Decreasing the oxygen consumption rate (OCR) of tumor cells is a powerful method for ameliorating tumor hypoxia. However, quantifying the change in OCR is challenging in complex experimental systems. AIM We present a method for quantifying the OCR of two tumor cell lines using oxygen-sensitive dual-emissive boron nanoparticles (BNPs). We hypothesize that our BNP results are equivalent to the standard Seahorse assay. APPROACH We quantified the spectral emissions of the BNP and accounted for external oxygen diffusion to quantify OCR over 24 h. The BNP-computed OCR of two breast cancer cell lines, E0771 and 4T07, were compared with their respective Seahorse assays. Both cell lines were also irradiated to quantify radiation-induced changes in the OCR. RESULTS Using a Bland-Altman analysis, our BNPs OCR was equivalent to the standard Seahorse assay. Moreover, in an additional experiment in which we irradiated the cells at their 50% survival fraction, the BNPs were sensitive enough to quantify 24% reduction in OCR after irradiation. CONCLUSIONS Our results conclude that the BNPs are a viable alternative to the Seahorse assay for quantifying the OCR in cells. The Bland-Altman analysis showed that these two methods result in equivalent OCR measurements. Future studies will extend the OCR measurements to complex systems including 3D cultures and in vivo models, in which OCR measurements cannot currently be made.
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Affiliation(s)
- Ashlyn G. Rickard
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
| | - Meng Zhuang
- University of Virginia, Department of Chemistry, Charlottesville, Virginia, United States
| | - Christopher A. DeRosa
- University of Virginia, Department of Chemistry, Charlottesville, Virginia, United States
| | - Xiaojie Zhang
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
| | - Mark W. Dewhirst
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
| | - Cassandra L. Fraser
- University of Virginia, Department of Chemistry, Charlottesville, Virginia, United States
| | - Gregory M. Palmer
- Duke University, Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, United States
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5
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Zhao Z, Gao P, Ma L, Chen T. A highly X-ray sensitive iridium prodrug for visualized tumor radiochemotherapy. Chem Sci 2020; 11:3780-3789. [PMID: 34122847 PMCID: PMC8152633 DOI: 10.1039/d0sc00862a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Concomitant treatment of radiotherapy and chemotherapy is widely used in cancer therapy. The search for highly efficient radiochemotherapy drugs for tumor targeting therapy under image-guiding is of considerable interest. Herein we report an Ir-based prodrug Ir-NB with high sensitization efficiency for in vivo tumor microenvironment responsive cancer-targeted bioimaging radiochemotherapy. To the best of our knowledge, the sensitivity enhancement ratio (SER) of the Ir-NB prodrug is the highest among those reported for radiotherapy metal complex drugs. From detailed action mechanism study, we provide evidence that the prodrug is effectively suppresses the tumor growth through inducing mitochondrial dysfunction, and eventually amplifies the apoptotic signal pathway. This study provides an approach for the development of cancer theranostic agents for tumor radiotherapy. A highly X-ray sensitive molecular prodrug, Ir-NB, was reported for visualized tumor radiochemotherapy. To our knowledge, the sensitivity enhancement ratio of the prodrug is the highest among the reported radiotherapy metal complexes drugs.![]()
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Affiliation(s)
- Zhennan Zhao
- Department of Chemistry, Jinan University Guangzhou 510632 China
| | - Pan Gao
- Department of Chemistry, Jinan University Guangzhou 510632 China
| | - Li Ma
- Department of Chemistry, Jinan University Guangzhou 510632 China
| | - Tianfeng Chen
- Department of Chemistry, Jinan University Guangzhou 510632 China
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7
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Eckert F, Zwirner K, Boeke S, Thorwarth D, Zips D, Huber SM. Rationale for Combining Radiotherapy and Immune Checkpoint Inhibition for Patients With Hypoxic Tumors. Front Immunol 2019; 10:407. [PMID: 30930892 PMCID: PMC6423917 DOI: 10.3389/fimmu.2019.00407] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 02/15/2019] [Indexed: 12/19/2022] Open
Abstract
In order to compensate for the increased oxygen consumption in growing tumors, tumors need angiogenesis and vasculogenesis to increase the supply. Insufficiency in this process or in the microcirculation leads to hypoxic tumor areas with a significantly reduced pO2, which in turn leads to alterations in the biology of cancer cells as well as in the tumor microenvironment. Cancer cells develop more aggressive phenotypes, stem cell features and are more prone to metastasis formation and migration. In addition, intratumoral hypoxia confers therapy resistance, specifically radioresistance. Reactive oxygen species are crucial in fixing DNA breaks after ionizing radiation. Thus, hypoxic tumor cells show a two- to threefold increase in radioresistance. The microenvironment is enriched with chemokines (e.g., SDF-1) and growth factors (e.g., TGFβ) additionally reducing radiosensitivity. During recent years hypoxia has also been identified as a major factor for immune suppression in the tumor microenvironment. Hypoxic tumors show increased numbers of myeloid derived suppressor cells (MDSCs) as well as regulatory T cells (Tregs) and decreased infiltration and activation of cytotoxic T cells. The combination of radiotherapy with immune checkpoint inhibition is on the rise in the treatment of metastatic cancer patients, but is also tested in multiple curative treatment settings. There is a strong rationale for synergistic effects, such as increased T cell infiltration in irradiated tumors and mitigation of radiation-induced immunosuppressive mechanisms such as PD-L1 upregulation by immune checkpoint inhibition. Given the worse prognosis of patients with hypoxic tumors due to local therapy resistance but also increased rate of distant metastases and the strong immune suppression induced by hypoxia, we hypothesize that the subgroup of patients with hypoxic tumors might be of special interest for combining immune checkpoint inhibition with radiotherapy.
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Affiliation(s)
- Franziska Eckert
- Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
- German Cancer Consortium (DKTK) Partnersite Tuebingen, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Kerstin Zwirner
- Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
| | - Simon Boeke
- Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
- German Cancer Consortium (DKTK) Partnersite Tuebingen, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Section for Biomedical Physics, Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
| | - Daniela Thorwarth
- German Cancer Consortium (DKTK) Partnersite Tuebingen, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Section for Biomedical Physics, Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
| | - Daniel Zips
- Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
- German Cancer Consortium (DKTK) Partnersite Tuebingen, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stephan M. Huber
- Department of Radiation Oncology, University Hospital Tuebingen, Tuebingen, Germany
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8
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Gleber-Netto FO, Rao X, Guo T, Xi Y, Gao M, Shen L, Erikson K, Kalu NN, Ren S, Xu G, Fisch KM, Akagi K, Seiwert T, Gillison M, Frederick MJ, Johnson FM, Wang J, Myers JN, Califano J, Skinner HD, Pickering CR. Variations in HPV function are associated with survival in squamous cell carcinoma. JCI Insight 2019; 4:124762. [PMID: 30626753 DOI: 10.1172/jci.insight.124762] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/27/2018] [Indexed: 12/25/2022] Open
Abstract
Incidence of HPV+ oropharyngeal squamous cell carcinoma (OPSCC) has been increasing dramatically. Although long-term survival rates for these patients are high, they often suffer from permanent radiotherapy-related morbidity. This has prompted the development of de-escalation clinical protocols to reduce morbidity. However, a subset of patients do not respond even to standard therapy and have poor outcomes. It is unclear how to properly identify and treat the high- and low-risk HPV+ OPSCC patients. Since HPV positivity drives radiotherapy sensitivity, we hypothesized that variations in HPV biology may cause differences in treatment response and outcome. By analyzing gene expression data, we identified variations in HPV-related molecules among HPV+ OPSCC. A subset of tumors presented a molecular profile distinct from that of typical HPV+ tumors and exhibited poor treatment response, indicating molecular and clinical similarities with HPV- tumors. These molecular changes were also observed in vitro and correlated with radiation sensitivity. Finally, we developed a prognostic biomarker signature for identification of this subgroup of HPV+ OPSCC and validated it in independent cohorts of oropharyngeal and cervical carcinomas. These findings could translate to improved patient stratification for treatment deintensification and new therapeutic approaches for treatment-resistant HPV-related cancer.
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Affiliation(s)
| | - Xiayu Rao
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas. USA
| | - Theresa Guo
- Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Yuanxin Xi
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas. USA
| | - Meng Gao
- Department of Head and Neck Surgery and
| | - Li Shen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas. USA
| | | | - Nene N Kalu
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Shuling Ren
- Division of Otolaryngology - Head and Neck Surgery, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, California, USA
| | - Guorong Xu
- Division of Otolaryngology - Head and Neck Surgery, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, California, USA
| | - Kathleen M Fisch
- Center for Computational Biology & Bioinformatics, Department of Medicine, University of California, San Diego, La Jolla, California. USA
| | - Keiko Akagi
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Tanguy Seiwert
- Department of Medicine and Comprehensive Cancer Center, University of Chicago, Chicago, Illinois, USA
| | - Maura Gillison
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Faye M Johnson
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,The University of Texas Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas. USA.,The University of Texas Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - Jeffrey N Myers
- Department of Head and Neck Surgery and.,The University of Texas Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - Joseph Califano
- Division of Otolaryngology - Head and Neck Surgery, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, California, USA
| | - Heath D Skinner
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Curtis R Pickering
- Department of Head and Neck Surgery and.,The University of Texas Graduate School of Biomedical Sciences, Houston, Texas, USA
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Mitochondrial stress controls the radiosensitivity of the oxygen effect: Implications for radiotherapy. Oncotarget 2017; 7:21469-83. [PMID: 26894978 PMCID: PMC5008299 DOI: 10.18632/oncotarget.7412] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/29/2016] [Indexed: 01/05/2023] Open
Abstract
It has been more than 60 years since the discovery of the oxygen effect that empirically demonstrates the direct association between cell radiosensitivity and oxygen tension, important parameters in radiotherapy. Yet the mechanisms underlying this principal tenet of radiobiology are poorly understood. Better understanding of the oxygen effect may explain difficulty in eliminating hypoxic tumor cells, a major cause of regrowth after therapy. Our analysis utilizes the Howard-Flanders and Alper formula, which describes the relationship of radiosensitivity with oxygen tension. Here, we assign and qualitatively assess the relative contributions of two important mechanisms. The first mechanism involves the emission of reactive oxygen species from the mitochondrial electron transport chain, which increases with oxygen tension. The second mechanism is related to an energy and repair deficit, which increases with hypoxia. Following a radiation exposure, the uncoupling of the oxidative phosphorylation system (proton leak) in mitochondria lowers the emission of reactive oxygen species which has implications for fractionated radiotherapy, particularly of hypoxic tumors. Our analysis shows that, in oxygenated tumor and normal cells, mitochondria, rather than the nucleus, are the primary loci of radiotherapy effects, especially for low linear energy transfer radiation. Therefore, the oxygen effect can be explained by radiation-induced effects in mitochondria that generate reactive oxygen species, which in turn indirectly target nuclear DNA.
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Abozaid OAR, Moawed FSM, Farrag MA, Abdel Aziz AAA. 4-(4-Hydroxy-3-methoxyphenyl)-2-butanone modulates redox signal in gamma-irradiation-induced nephrotoxicity in rats. Free Radic Res 2017; 51:943-953. [DOI: 10.1080/10715762.2017.1395025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Omayma A. R. Abozaid
- Department of Biochemistry, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Fatma S. M. Moawed
- Health Radiation Research, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Mostafa A. Farrag
- Radiation Biology, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
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11
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Torres TE, Russo LC, Santos A, Marques GR, Magalhaes YT, Tabassum S, Forti FL. Loss of DUSP3 activity radiosensitizes human tumor cell lines via attenuation of DNA repair pathways. Biochim Biophys Acta Gen Subj 2017; 1861:1879-1894. [PMID: 28389334 DOI: 10.1016/j.bbagen.2017.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/22/2017] [Accepted: 04/02/2017] [Indexed: 12/19/2022]
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12
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Yu CYY, Xu H, Ji S, Kwok RTK, Lam JWY, Li X, Krishnan S, Ding D, Tang BZ. Mitochondrion-Anchoring Photosensitizer with Aggregation-Induced Emission Characteristics Synergistically Boosts the Radiosensitivity of Cancer Cells to Ionizing Radiation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28195448 DOI: 10.1002/adma.201606167] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 01/13/2017] [Indexed: 05/14/2023]
Abstract
The first mitochondrion-anchoring photosensitizer that specifically generates singlet oxygen (1 O2 ) in mitochondria under white light irradiation that can serve as a highly effective radiosensitizer is reported here, significantly sensitizing cancer cells to ionizing radiation. An aggregation-induced emission luminogen (AIEgen), namely DPA-SCP, is rationally designed with α-cyanostilbene as a simple building block to reveal AIE, diphenylamino (DPA) group as a strong electron donating group to benefit red emission and efficient light-controlled 1 O2 generation, as well as a pyridinium salt as the targeting moiety to ensure specific mitochondrial localization. The AIE signature endows DPA-SCP with the capacity to visualize mitochondria in a fluorescence turn-on mode. It is found that under optimized experimental condition, DPA-SCP with white light does not lead to apoptosis/death of cancer cells, whereas provides an elevated 1 O2 environment in the mitochondria. More importantly, increasing intracellular level of 1 O2 originated from mitochondria is demonstrated to be a generic method to enhance the radiosensitivity of cancer cells with a supra-additive synergistic effect of "0 + 1 > 1." Noteworthy is that "DPA-SCP + white light" achieves a high SER10 value of 1.62, which is much larger than that of the most popularly used radiosensitizers, gold nanoparticles (1.19), and paclitaxel (1.32).
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Affiliation(s)
- Chris Y Y Yu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, State Key Laboratory of Neuroscienceand Division of Biomedical Engineering, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Huae Xu
- Department of Pharmacy, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, China
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ryan T K Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, State Key Laboratory of Neuroscienceand Division of Biomedical Engineering, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, State Key Laboratory of Neuroscienceand Division of Biomedical Engineering, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Xiaolin Li
- Department of Geriatric Gastroenterology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, 210029, China
- Department of Experimental Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - Sunil Krishnan
- Department of Experimental Radiation Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, State Key Laboratory of Neuroscienceand Division of Biomedical Engineering, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
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Protection against Radiotherapy-Induced Toxicity. Antioxidants (Basel) 2016; 5:antiox5030022. [PMID: 27399787 PMCID: PMC5039571 DOI: 10.3390/antiox5030022] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 06/27/2016] [Accepted: 06/28/2016] [Indexed: 01/18/2023] Open
Abstract
Radiation therapy is a highly utilized therapy in the treatment of malignancies with up to 60% of cancer patients receiving radiation therapy as a part of their treatment regimen. Radiation therapy does, however, cause a wide range of adverse effects that can be severe and cause permanent damage to the patient. In an attempt to minimize these effects, a small number of compounds have been identified and are in use clinically for the prevention and treatment of radiation associated toxicities. Furthermore, there are a number of emerging therapies being developed for use as agents that protect against radiation-induced toxicities. The aim of this review was to evaluate and summarise the evidence that exists for both the known radioprotectant agents and the agents that show promise as future radioprotectant agents.
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Zhang C, Zhao K, Bu W, Ni D, Liu Y, Feng J, Shi J. Marriage of Scintillator and Semiconductor for Synchronous Radiotherapy and Deep Photodynamic Therapy with Diminished Oxygen Dependence. Angew Chem Int Ed Engl 2014; 54:1770-4. [DOI: 10.1002/anie.201408472] [Citation(s) in RCA: 358] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 11/02/2014] [Indexed: 12/11/2022]
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Zhang C, Zhao K, Bu W, Ni D, Liu Y, Feng J, Shi J. Marriage of Scintillator and Semiconductor for Synchronous Radiotherapy and Deep Photodynamic Therapy with Diminished Oxygen Dependence. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408472] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Xu H, He W, Jiang HG, Zhao H, Peng XH, Wei YH, Wei JN, Xie CH, Liang C, Zhong YH, Zhang G, Deng D, Zhou YF, Zhou FX. Prognostic value of mitochondrial DNA content and G10398A polymorphism in non-small cell lung cancer. Oncol Rep 2013; 30:3006-12. [PMID: 24101028 DOI: 10.3892/or.2013.2783] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 09/02/2013] [Indexed: 11/06/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is one of the leading causes of cancer-related mortality worldwide. Mitochondrial dysfunction has been postulated to render cancer cells resistant to apoptosis based on the Warburg hypothesis. However, few studies have investigated the prognostic value of mitochondrial DNA (mtDNA) content and G10398A polymorphism in NSCLC patients. mtDNA copy number and G10398A polymorphism in 128 NSCLC tissue samples were assessed by real-time PCR (RT-PCR) and PCR-RFLP respectively, and their relationship to prognosis were analyzed by survival analysis and Cox proportional hazards model. In vitro, an mtDNA deletion A549 ρ(0) cell model was utilized to assess the function of mtDNA on radiosensitivity. Cell cycle distribution and reactive oxygen species (ROS) were analyzed to elucidate the potential mechanisms. For the whole group, the median follow-up time and overall survival time were 22.5 and 23.4 months, respectively. Patients with high mtDNA content had a marginally longer survival time than patients with low mtDNA content (P=0.053). Moreover, patients with high mtDNA content plus 10398G had a significantly longer overall survival time compared with those having low mtDNA content plus 10398A (47 vs. 27 months, P<0.05). In addition, multivariate analysis showed that stage and low mtDNA content plus 10398A were the two most independent prognostic factors. In vitro, the A549 ρ(0) cells showed more resistance to radiation than ρ(+) cells. Following radiation, ρ(0) cells showed delayed G2 arrest and lower ROS level as compared to ρ(+) cells. In conclusion, the present study suggests that in patients with NSCLC, low mtDNA content plus 10398A could be a marker of poor prognosis which is associated with resistance to anticancer treatment caused by low mtDNA content plus 10398A polymorphism resulting in mitochondrial dysfunction.
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Affiliation(s)
- Hui Xu
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study Center, Wuchang, Wuhan, Hubei 430071, P.R. China
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Guin PS, Mandal PC, Das S. Aspects of γ-radiation induced modification of calf thymus DNA in the presence of sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulfonate and its transition metal complexes with Cu2+ and Ni2+. Radiat Phys Chem Oxf Engl 1993 2013. [DOI: 10.1016/j.radphyschem.2013.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yu H, Li X, Sun S, Gao X, Zhou D. c-Met inhibitor SU11274 enhances the response of the prostate cancer cell line DU145 to ionizing radiation. Biochem Biophys Res Commun 2012; 427:659-65. [PMID: 23026049 DOI: 10.1016/j.bbrc.2012.09.117] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 09/21/2012] [Indexed: 02/08/2023]
Abstract
Hormone-refractory prostate cancer shows substantial resistance to most conventional therapies including radiotherapy, constitutes a key impediment to curing patients with the disease. c-Met overexpression plays a key role in prostate cancer tumorigenesis and disease progression. Here, we demonstrate that c-Met inhibition by SU11274 could significantly suppress cell survival and proliferation as well as enhance the radiosensitivity of DU145 cells. The underlying mechanisms of the effects of SU11274 on DU145 cells may include the inhibition of c-Met signaling, depolarization of the mitochondrial membrane potential, impairment of DNA repair function, abrogation of cell cycle arrest, and enhancement of cell death. Our study is the first to show the effectiveness of combining c-Met inhibition with ionizing radiation to cure hormone-refractory prostate cancer.
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Affiliation(s)
- Hongliang Yu
- Department of Radiation Oncology, Peking University First Hospital, Peking University, Beijing, China
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Inhibition of autophagy by 3-methyladenine protects 1321N1 astrocytoma cells against pyocyanin- and 1-hydroxyphenazine-induced toxicity. Arch Toxicol 2011; 86:275-84. [DOI: 10.1007/s00204-011-0755-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 09/14/2011] [Indexed: 10/17/2022]
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Abstract
The chapters throughout this volume illustrate the many contributions of mitochondria to the maintenance of normal cell and tissue function, experienced as the health of the individual. Mitochondria are essential for maintaining aspects of physiology as fundamental as cellular energy balance, the modulation of calcium signalling, in defining cellular redox balance, and they house significant biosynthetic pathways. Mitochondrial numbers and volume within cells are regulated and have an impact on their functional roles, while, especially in the CNS (central nervous system), mitochondrial trafficking is critical to ensure the cellular distribution and strategic localization of mitochondria, presumably driven by local energy demand. Maintenance of a healthy mitochondrial population involves a complex system of quality control, involving degrading misfolded proteins, while damaged mitochondria are renewed by fusion or removed by autophagy. It seems evident that mechanisms that impair any of these processes will impair mitochondrial function and cell signalling pathways, leading to disordered cell function which manifests as disease. As gatekeepers of cell life and cell death, mitochondria regulate both apoptotic and necrotic cell death, and so at its most extreme, disturbances involving these pathways may trigger untimely cell death. Conversely, the lack of appropriate cell death can lead to inappropriate tissue growth and development of tumours, which are also characterized by altered mitochondrial metabolism. The centrality of mitochondrial dysfunction to a surprisingly wide range of major human diseases is slowly becoming recognized, bringing with it the prospect of novel therapeutic approaches to treat a multitude of unpleasant and pervasive diseases.
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Abdullaev SA, Anishchenko SE, Gaziev AI. Mutant copies of mitochondrial DNA in tissues and plasma of mice subjected to X-ray irradiation. Biophysics (Nagoya-shi) 2010. [DOI: 10.1134/s0006350910050283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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