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Maliszewska-Olejniczak K, Bednarczyk P. Novel insights into the role of ion channels in cellular DNA damage response. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2024; 793:108488. [PMID: 38266668 DOI: 10.1016/j.mrrev.2024.108488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
The DNA damage response (DDR) is a complex and highly regulated cellular process that detects and repairs DNA damage. The integrity of the DNA molecule is crucial for the proper functioning and survival of cells, as DNA damage can lead to mutations, genomic instability, and various diseases, including cancer. The DDR safeguards the genome by coordinating a series of signaling events and repair mechanisms to maintain genomic stability and prevent the propagation of damaged DNA to daughter cells. The study of an ion channels in the context of DDR is a promising avenue in biomedical research. Lately, it has been reported that the movement of ions through channels plays a crucial role in various physiological processes, including nerve signaling, muscle contraction, cell signaling, and maintaining cell membrane potential. Knowledge regarding the involvement of ion channels in the DDR could support refinement of our approach to several pathologies, mainly cancer, and perhaps lead to innovative therapies. In this review, we focused on the ion channel's possible role in the DDR. We present an analysis of the involvement of ion channels in DDR, their role in DNA repair mechanisms, and cellular outcomes. By addressing these areas, we aim to provide a comprehensive perspective on ion channels in the DDR and potentially guide future research in this field. It is worth noting that the interplay between ion channels and the cellular DDR is complex and multifaceted. More research is needed to fully understand the underlying mechanisms and potential therapeutic implications of these interactions.
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Affiliation(s)
- Kamila Maliszewska-Olejniczak
- Department of Physics and Biophysics, Institute of Biology, Warsaw University of Life Sciences - SGGW, Warsaw, Poland.
| | - Piotr Bednarczyk
- Department of Physics and Biophysics, Institute of Biology, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
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2
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Cao Y, Wei H, Jiang S, Lu T, Nie P, Yang C, Liu N, Lee I, Meng X, Wang W, Yuan Z. Effect of AQP4 and its palmitoylation on the permeability of exogenous reactive oxygen species: Insights from computational study. Int J Biol Macromol 2023; 253:127568. [PMID: 37866582 DOI: 10.1016/j.ijbiomac.2023.127568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Aquaporin 4 (AQP4) facilitates the transport of reactive oxygen species (ROS). Both cancer cells and the ionizing radiation microenvironment can induce posttranslational modifications (PTMs) in AQP4, which may affect its permeability to ROS. Because this ROS diffusion process is rapid, microscopic, and instantaneous within and outside cells, conventional experimental methods are inadequate for elucidating the molecular mechanisms involved. In this study, computational methods were employed to investigate the permeability of exogenous ROS mediated by radiation in AQP4 at a molecular scale. We constructed a simulation system incorporating AQP4 and AQP4-Cysp13 in a complex lipid environment with ROS. Long-timescale molecular dynamics simulations were conducted to assess the structural stability of both AQP4 and AQP4-Cysp13. Free energy calculations were utilized to determine the ROS transport capability of the two AQP4 proteins. Computational electrophysiology and channel structural analysis quantitatively evaluated changes in ROS transport capacity under various radiation-induced transmembrane voltage microenvironments. Our findings demonstrate the distinct transport capabilities of AQP4 channels for water molecules and various types of ROS and reveal a decrease in transport efficiency when AQP4 undergoes palmitoylation modification. In addition, we have simulated the radiation-induced alteration of cell membrane voltage, which significantly affected the ROS transport capacity. We propose that this research will enhance the understanding of the molecular mechanisms governing the transport of exogenous ROS by AQP4 and elucidate the influence of palmitoylation on ROS transport. This study will also help clarify how different structural features of AQP4 affect the transport of exogenous ROS mediated by radiotherapy, thereby providing a theoretical molecular basis for the development of new treatment strategies that combine with radiotherapy.
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Affiliation(s)
- Yipeng Cao
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China; National Supercomputer Center in Tianjin, 300457, PR China.
| | - Hui Wei
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China
| | - Shengpeng Jiang
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China
| | - Tong Lu
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China
| | - Pengfei Nie
- National Supercomputer Center in Tianjin, 300457, PR China
| | - Chengwen Yang
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China
| | - Ningbo Liu
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China
| | - Imshik Lee
- College of Physics, Nankai University, Tianjin 300071, PR China
| | - Xiangfei Meng
- National Supercomputer Center in Tianjin, 300457, PR China.
| | - Wei Wang
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China.
| | - Zhiyong Yuan
- Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, 300060, PR China.
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Arrieta O, Hernández-Pedro N, Maldonado F, Ramos-Ramírez M, Yamamoto-Ramos M, López-Macías D, Lozano F, Zatarain-Barrón ZL, Turcott JG, Barrios-Bernal P, Orozco-Morales M, Flores-Estrada D, Cardona AF, Rolfo C, Cacho-Díaz B. Nitroglycerin Plus Whole Intracranial Radiation Therapy for Brain Metastases in Patients With Non-Small Cell Lung Cancer: A Randomized, Open-Label, Phase 2 Clinical Trial. Int J Radiat Oncol Biol Phys 2023; 115:592-607. [PMID: 35157994 DOI: 10.1016/j.ijrobp.2022.02.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 02/03/2022] [Accepted: 02/06/2022] [Indexed: 02/06/2023]
Abstract
PURPOSE Hypoxia has been associated with chemoradioresistance secondary to vascular endothelial growth factor receptor induced by hypoxia-induced factor (HIF). Nitroglycerin (NTG) can reduce HIF-1 in tissues, and this may have antiangiogenic, proapoptotic, and antiefflux effects. Particularly, epidermal growth factor-mutated (EGFRm) tumor cell lines have been shown to overexpress both vascular endothelial growth factor and HIF. In this phase 2 study, we evaluated the effect of transdermal NTG plus whole brain radiation therapy (WBRT) in patients with non-small cell lung cancer (NSCLC) with brain metastases (BM). METHODS This was an open-label, phase 2 clinical trial with 96 patients with NSCLC and BM. Patients were randomized 1:1 to receive NTG plus WBRT (30 Gy in 10 fractions) or WBRT alone. The primary endpoint was intracranial objective response rate (iORR) evaluated 3 months posttreatment. NTG was administered using a transdermal 36-mg patch from Monday through Friday throughout WBRT administration (10 days). The protocol was retrospectively registered at ClinicalTrials.gov (NCT04338867). RESULTS Fifty patients were allocated to the control group, and 46 were allocated to the experimental group (NTG); among these, 26 (52%) had EGFRm in the control group and 21 (45.7%) had EGFRm in the NTG arm. In terms of the iORR, patients in the NTG group had a significantly higher response compared with controls (56.5% [n = 26/46 evaluable patients] vs 32.7% [n = 16/49 evaluable patients]; relative risk, 1.73; 95% confidence interval [CI], 1.08-2.78; P = .024). Additionally, patients who received NTG + WBRT had an independently prolonged intracranial progression-free survival (ICPFS) compared with those who received WBRT alone (27.7 vs 9.6; hazard ratio [HR], 0.5; 95% CI, 0.2-0.9; P = .020); this positively affected overall progression-free survival among patients who received systemic therapy (n = 88; HR, 0.5; 95% CI, 0.2-0.9; P = .043). The benefit of ICPFS (HR, 0.4; 95% CI, 0.2-0.9; P = .030) was significant in the EGFRm patient subgroup. No differences were observed in overall survival. A significantly higher rate of vomiting presented in the NTG arm of the study (P = .016). CONCLUSIONS The concurrent administration of NTG and radiation therapy improves iORR and ICPFS among patients with NSCLC with BM. The benefit in ICPFS is significant in the EGFRm patient subgroup.
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Affiliation(s)
- Oscar Arrieta
- Thoracic Oncology Unit and Laboratory of Personalized Medicine.
| | - Norma Hernández-Pedro
- Thoracic Oncology Unit and Laboratory of Personalized Medicine; Personalized Medicine Laboratory
| | - Federico Maldonado
- Department of Radio-Oncology, Instituto Nacional de Cancerología (INCan), Mexico City, Mexico
| | | | | | | | - Francisco Lozano
- Department of Radio-Oncology, Instituto Nacional de Cancerología (INCan), Mexico City, Mexico
| | | | - Jenny G Turcott
- Thoracic Oncology Unit and Laboratory of Personalized Medicine
| | | | | | | | - Andrés F Cardona
- Clinical and Translational Oncology Group, Fundación Santa Fe de Bogotá, Bogotá, Colombia; Clinical and Translational Oncology Group, Clínica del Country, Bogotá, Colombia
| | - Christian Rolfo
- Marlene and Stewart Greenbaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland
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Saga R, Matsuya Y, Sato H, Hasegawa K, Obara H, Komai F, Yoshino H, Aoki M, Hosokawa Y. Translational study for stereotactic body radiotherapy against non-small cell lung cancer, including oligometastases, considering cancer stem-like cells enable predicting clinical outcome from in vitro data. Radiother Oncol 2023; 181:109444. [PMID: 37011969 DOI: 10.1016/j.radonc.2022.109444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/15/2022] [Accepted: 12/06/2022] [Indexed: 02/16/2023]
Abstract
BACKGROUND Curative effects of stereotactic body radiotherapy (SBRT) for non-small cell lung cancer (NSCLC) have been evaluated using various biophysical models. Because such model parameters are empirically determined based on clinical experience, there is a large gap between in vitro and clinical studies. In this study, considering the heterogeneous cell population, we performed a translational study to realize the possible linkage based on a modeling approach. METHODS We modeled cell-killing and tumor control probability (TCP) considering two populations: progeny and cancer stem-like cells. The model parameters were determined from in vitro survival data of A549 and EBC-1 cells. Based on the cellular parameters, we predicted TCP and compared it with the corresponding clinical data from 553 patients collected at Hirosaki University Hospital. RESULTS Using an all-in-one developed model, the so-called integrated microdosimetric-kinetic (IMK) model, we successfully reproduced both in vitro survival after acute irradiation and the 3-year TCP with various fractionation schemes (6-10 Gy per fraction). From the conventional prediction without considering cancer stem cells (CSCs), this study revealed that radioresistant CSCs play a key role in the linkage between in vitro and clinical outcomes. CONCLUSIONS This modeling study provides a possible generalized biophysical model that enables precise estimation of SBRT worldwide.
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Affiliation(s)
- Ryo Saga
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan.
| | - Yusuke Matsuya
- Nuclear Science and Engineering Center, Research Group for Radiation Transport Analysis, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan; Faculty of Health Sciences, Hokkaido University, Kita-12 Nishi-5, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Hikari Sato
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
| | - Kazuki Hasegawa
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
| | - Hideki Obara
- Division of Radiology, Hirosaki University Hospital, 53 Hon-cho, Hirosaki, Aomori 036-8563, Japan
| | - Fumio Komai
- Division of Radiology, Hirosaki University Hospital, 53 Hon-cho, Hirosaki, Aomori 036-8563, Japan
| | - Hironori Yoshino
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
| | - Masahiko Aoki
- Department of Radiation Oncology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Yoichiro Hosokawa
- Department of Radiation Science, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
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Jeibouei S, Shams F, Mohebichamkhorami F, Sanooghi D, Faal B, Akbari ME, Zali H. Biological and clinical review of IORT-induced wound fluid in breast cancer patients. Front Oncol 2022; 12:980513. [DOI: 10.3389/fonc.2022.980513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 10/19/2022] [Indexed: 11/22/2022] Open
Abstract
Intraoperative radiotherapy (IORT) has become a growing therapy for early-stage breast cancer (BC). Some studies claim that wound fluid (seroma), a common consequence of surgical excision in the tumor cavity, can reflect the effects of IORT on cancer inhibition. However, further research by our team and other researchers, such as analysis of seroma composition, affected cell lines, and primary tissues in two-dimensional (2D) and three-dimensional (3D) culture systems, clarified that seroma could not address the questions about IORT effectiveness in the surgical site. In this review, we mention the factors involved in tumor recurrence, direct or indirect effects of IORT on BC, and all the studies associated with BC seroma to attain more information about the impact of IORT-induced seroma to make a better decision to remove or remain after surgery and IORT. Finally, we suggest that seroma studies cannot decipher the mechanisms underlying the effectiveness of IORT in BC patients. The question of whether IORT-seroma has a beneficial effect can only be answered in a trial with a clinical endpoint, which is not even ongoing.
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Bian C, Zheng Z, Su J, Wang H, Chang S, Xin Y, Jiang X. Targeting Mitochondrial Metabolism to Reverse Radioresistance: An Alternative to Glucose Metabolism. Antioxidants (Basel) 2022; 11:2202. [PMID: 36358574 PMCID: PMC9686736 DOI: 10.3390/antiox11112202] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/27/2022] [Accepted: 11/02/2022] [Indexed: 07/30/2023] Open
Abstract
Radiotherapy failure and poor tumor prognosis are primarily attributed to radioresistance. Improving the curative effect of radiotherapy and delaying cancer progression have become difficult problems for clinicians. Glucose metabolism has long been regarded as the main metabolic process by which tumor cells meet their bioenergetic and anabolic needs, with the complex interactions between the mitochondria and tumors being ignored. This misconception was not dispelled until the early 2000s; however, the cellular molecules and signaling pathways involved in radioresistance remain incompletely defined. In addition to being a key metabolic site that regulates tumorigenesis, mitochondria can influence the radiation effects of malignancies by controlling redox reactions, participating in oxidative phosphorylation, producing oncometabolites, and triggering apoptosis. Therefore, the mitochondria are promising targets for the development of novel anticancer drugs. In this review, we summarize the internal relationship and related mechanisms between mitochondrial metabolism and cancer radioresistance, thus exploring the possibility of targeting mitochondrial signaling pathways to reverse radiation insensitivity. We suggest that attention should be paid to the potential value of mitochondria in prolonging the survival of cancer patients.
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Affiliation(s)
- Chenbin Bian
- Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun 130021, China
| | - Zhuangzhuang Zheng
- Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun 130021, China
| | - Jing Su
- Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun 130021, China
| | - Huanhuan Wang
- Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun 130021, China
| | - Sitong Chang
- Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun 130021, China
| | - Ying Xin
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Xin Jiang
- Jilin Provincial Key Laboratory of Radiation Oncology & Therapy, The First Hospital of Jilin University, Changchun 130021, China
- Department of Radiation Oncology, The First Hospital of Jilin University, Changchun 130021, China
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun 130021, China
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Lacombe J, Zenhausern F. Effect of mechanical forces on cellular response to radiation. Radiother Oncol 2022; 176:187-198. [PMID: 36228760 DOI: 10.1016/j.radonc.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/08/2022] [Accepted: 10/05/2022] [Indexed: 12/14/2022]
Abstract
While the cellular interactions and biochemical signaling has been investigated for long and showed to play a major role in the cell's fate, it is now also evident that mechanical forces continuously applied to the cells in their microenvironment are as important for tissue homeostasis. Mechanical cues are emerging as key regulators of cellular drug response and we aimed to demonstrate in this review that such effects should also be considered vital for the cellular response to radiation. In order to explore the mechanobiology of the radiation response, we reviewed the main mechanoreceptors and transducers, including integrin-mediated adhesion, YAP/TAZ pathways, Wnt/β-catenin signaling, ion channels and G protein-coupled receptors and showed their implication in the modulation of cellular radiosensitivity. We then discussed the current studies that investigated a direct effect of mechanical stress, including extracellular matrix stiffness, shear stress and mechanical strain, on radiation response of cancer and normal cells and showed through preliminary results that such stress effectively can alter cell response after irradiation. However, we also highlighted the limitations of these studies and emphasized some of the contradictory data, demonstrating that the effect of mechanical cues could involve complex interactions and potential crosstalk with numerous cellular processes also affected by irradiation. Overall, mechanical forces alter radiation response and although additional studies are required to deeply understand the underlying mechanisms, these effects should not be neglected in radiation research as they could reveal new fundamental knowledge for predicting radiosensitivity or understanding resistance to radiotherapy.
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Affiliation(s)
- Jerome Lacombe
- Center for Applied NanoBioscience and Medicine, College of Medicine Phoenix, University of Arizona, 475 North 5th Street, Phoenix, AZ 85004, USA; Department of Basic Medical Sciences, College of Medicine Phoenix, University of Arizona, 425 N 5th St, Phoenix, AZ 85004, USA.
| | - Frederic Zenhausern
- Center for Applied NanoBioscience and Medicine, College of Medicine Phoenix, University of Arizona, 475 North 5th Street, Phoenix, AZ 85004, USA; Department of Basic Medical Sciences, College of Medicine Phoenix, University of Arizona, 425 N 5th St, Phoenix, AZ 85004, USA; Department of Biomedical Engineering, College of Engineering, University of Arizona, 1127 E. James E. Rogers Way, Tucson, AZ 85721, USA.
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8
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Saurty-Seerunghen MS, Daubon T, Bellenger L, Delaunay V, Castro G, Guyon J, Rezk A, Fabrega S, Idbaih A, Almairac F, Burel-Vandenbos F, Turchi L, Duplus E, Virolle T, Peyrin JM, Antoniewski C, Chneiweiss H, El-Habr EA, Junier MP. Glioblastoma cell motility depends on enhanced oxidative stress coupled with mobilization of a sulfurtransferase. Cell Death Dis 2022. [PMID: 36310164 DOI: 10.1038/s41419-022-05358-8.pmid:36310164;pmcid:pmc9618559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Cell motility is critical for tumor malignancy. Metabolism being an obligatory step in shaping cell behavior, we looked for metabolic weaknesses shared by motile cells across the diverse genetic contexts of patients' glioblastoma. Computational analyses of single-cell transcriptomes from thirty patients' tumors isolated cells with high motile potential and highlighted their metabolic specificities. These cells were characterized by enhanced mitochondrial load and oxidative stress coupled with mobilization of the cysteine metabolism enzyme 3-Mercaptopyruvate sulfurtransferase (MPST). Functional assays with patients' tumor-derived cells and -tissue organoids, and genetic and pharmacological manipulations confirmed that the cells depend on enhanced ROS production and MPST activity for their motility. MPST action involved protection of protein cysteine residues from damaging hyperoxidation. Its knockdown translated in reduced tumor burden, and a robust increase in mice survival. Starting from cell-by-cell analyses of the patients' tumors, our work unravels metabolic dependencies of cell malignancy maintained across heterogeneous genomic landscapes.
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Affiliation(s)
- Mirca S Saurty-Seerunghen
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Thomas Daubon
- CNRS UMR5095, Inserm U1029, Université de Bordeaux, Institut de Biochimie et Génétique Cellulaires, Team Bioenergetics and dynamics of mitochondria, Bordeaux, France
| | - Léa Bellenger
- ARTbio Bioinformatics Analysis Facility, Sorbonne Université, CNRS, Institut de Biologie Paris Seine, Paris, France
| | - Virgile Delaunay
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Gloria Castro
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Joris Guyon
- Inserm U1312, Université de Bordeaux, Pessac, France
| | - Ahmed Rezk
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Sylvie Fabrega
- Plateforme Vecteurs Viraux et Transfert de Gènes, Université Paris Descartes-Structure Fédérative de Recherche Necker, CNRS UMS3633, Inserm US24, Paris, France
| | - Ahmed Idbaih
- CNRS UMR 7225, Inserm U1127, Sorbonne Université, Institut du Cerveau et de la Moelle épinière, Paris, France
| | - Fabien Almairac
- Université Côte D'Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France
- Service de Neurochirurgie, Hôpital Pasteur, CHU de Nice, Nice, 06107, France
| | - Fanny Burel-Vandenbos
- Université Côte D'Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France
- Service d'anatomopathologie, Hôpital Pasteur, CHU de Nice, Nice, 06107, France
| | - Laurent Turchi
- Université Côte D'Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France
- DRCI, CHU de Nice, Nice, 06107, France
| | - Eric Duplus
- CNRS UMR8256, INSERM ERL1164, Sorbonne Université, Biological adaptation and aging-IBPS Laboratory, Team Integrated cellular aging and inflammation, Paris, France
| | - Thierry Virolle
- Université Côte D'Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France
| | - Jean-Michel Peyrin
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Axonal degeneration and regeneration, Paris, France
| | - Christophe Antoniewski
- ARTbio Bioinformatics Analysis Facility, Sorbonne Université, CNRS, Institut de Biologie Paris Seine, Paris, France
| | - Hervé Chneiweiss
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Elias A El-Habr
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France.
| | - Marie-Pierre Junier
- CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France.
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9
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Saurty-Seerunghen MS, Daubon T, Bellenger L, Delaunay V, Castro G, Guyon J, Rezk A, Fabrega S, Idbaih A, Almairac F, Burel-Vandenbos F, Turchi L, Duplus E, Virolle T, Peyrin JM, Antoniewski C, Chneiweiss H, El-Habr EA, Junier MP. Glioblastoma cell motility depends on enhanced oxidative stress coupled with mobilization of a sulfurtransferase. Cell Death Dis 2022; 13:913. [PMID: 36310164 PMCID: PMC9618559 DOI: 10.1038/s41419-022-05358-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 01/23/2023]
Abstract
Cell motility is critical for tumor malignancy. Metabolism being an obligatory step in shaping cell behavior, we looked for metabolic weaknesses shared by motile cells across the diverse genetic contexts of patients' glioblastoma. Computational analyses of single-cell transcriptomes from thirty patients' tumors isolated cells with high motile potential and highlighted their metabolic specificities. These cells were characterized by enhanced mitochondrial load and oxidative stress coupled with mobilization of the cysteine metabolism enzyme 3-Mercaptopyruvate sulfurtransferase (MPST). Functional assays with patients' tumor-derived cells and -tissue organoids, and genetic and pharmacological manipulations confirmed that the cells depend on enhanced ROS production and MPST activity for their motility. MPST action involved protection of protein cysteine residues from damaging hyperoxidation. Its knockdown translated in reduced tumor burden, and a robust increase in mice survival. Starting from cell-by-cell analyses of the patients' tumors, our work unravels metabolic dependencies of cell malignancy maintained across heterogeneous genomic landscapes.
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Affiliation(s)
- Mirca S. Saurty-Seerunghen
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Thomas Daubon
- grid.462122.10000 0004 1795 2841CNRS UMR5095, Inserm U1029, Université de Bordeaux, Institut de Biochimie et Génétique Cellulaires, Team Bioenergetics and dynamics of mitochondria, Bordeaux, France
| | - Léa Bellenger
- grid.503253.20000 0004 0520 7190ARTbio Bioinformatics Analysis Facility, Sorbonne Université, CNRS, Institut de Biologie Paris Seine, Paris, France
| | - Virgile Delaunay
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Gloria Castro
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Joris Guyon
- grid.412041.20000 0001 2106 639XInserm U1312, Université de Bordeaux, Pessac, France
| | - Ahmed Rezk
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Sylvie Fabrega
- grid.508487.60000 0004 7885 7602Plateforme Vecteurs Viraux et Transfert de Gènes, Université Paris Descartes-Structure Fédérative de Recherche Necker, CNRS UMS3633, Inserm US24, Paris, France
| | - Ahmed Idbaih
- grid.425274.20000 0004 0620 5939CNRS UMR 7225, Inserm U1127, Sorbonne Université, Institut du Cerveau et de la Moelle épinière, Paris, France
| | - Fabien Almairac
- grid.461605.0Université Côte D’Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France ,grid.464719.90000 0004 0639 4696Service de Neurochirurgie, Hôpital Pasteur, CHU de Nice, Nice, 06107 France
| | - Fanny Burel-Vandenbos
- grid.461605.0Université Côte D’Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France ,grid.464719.90000 0004 0639 4696Service d’anatomopathologie, Hôpital Pasteur, CHU de Nice, Nice, 06107 France
| | - Laurent Turchi
- grid.461605.0Université Côte D’Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France ,grid.410528.a0000 0001 2322 4179DRCI, CHU de Nice, Nice, 06107 France
| | - Eric Duplus
- grid.462844.80000 0001 2308 1657CNRS UMR8256, INSERM ERL1164, Sorbonne Université, Biological adaptation and aging-IBPS Laboratory, Team Integrated cellular aging and inflammation, Paris, France
| | - Thierry Virolle
- grid.461605.0Université Côte D’Azur, CNRS, INSERM, Institut de Biologie Valrose, Team INSERM Cancer Stem Cell Plasticity and Functional Intra-tumor Heterogeneity, Nice, France
| | - Jean-Michel Peyrin
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Axonal degeneration and regeneration, Paris, France
| | - Christophe Antoniewski
- grid.503253.20000 0004 0520 7190ARTbio Bioinformatics Analysis Facility, Sorbonne Université, CNRS, Institut de Biologie Paris Seine, Paris, France
| | - Hervé Chneiweiss
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Elias A. El-Habr
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
| | - Marie-Pierre Junier
- grid.462844.80000 0001 2308 1657CNRS UMR8246, Inserm U1130, Sorbonne Université, Neuroscience Paris Seine-IBPS Laboratory, Team Glial Plasticity and NeuroOncology, Paris, France
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10
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Chronic Ouabain Prevents Radiation-Induced Reduction in the α2 Na,K-ATPase Function in the Rat Diaphragm Muscle. Int J Mol Sci 2022; 23:ijms231810921. [PMID: 36142836 PMCID: PMC9505176 DOI: 10.3390/ijms231810921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/11/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022] Open
Abstract
The damaging effect of ionizing radiation (IR) on skeletal muscle Na,K-ATPase is an open field of research. Considering a therapeutic potential of ouabain, a specific ligand of the Na,K-ATPase, we tested its ability to protect against the IR-induced disturbances of Na,K-ATPase function in rat diaphragm muscle that co-expresses the α1 and α2 isozymes of this protein. Male Wistar rats (n = 26) were subjected to 6-day injections of vehicle (0.9% NaCl) or ouabain (1 µg/kg/day). On the fourth day of injections, rats were exposed to one-time total-body X-ray irradiation (10 Gy), or a sham irradiation. The isolated muscles were studied 72 h post-irradiation. IR decreased the electrogenic contribution of the α2 Na,K-ATPase without affecting its protein content, thereby causing sarcolemma depolarization. IR increased serum concentrations of ouabain, IL-6, and corticosterone, decreased lipid peroxidation, and changed cellular redox status. Chronic ouabain administration prevented IR-induced depolarization and loss of the α2 Na,K-ATPase electrogenic contribution without changing its protein content. This was accompanied with an elevation of ouabain concentration in circulation and with the lack of IR-induced suppression of lipid peroxidation. Given the crucial role of Na,K-ATPase in skeletal muscle performance, these findings may have therapeutic implications as countermeasures for IR-induced muscle pathology.
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11
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Hsu KS, Adileh M, Martin ML, Makarov V, Chen J, Wu C, Bodo S, Klingler S, Sauvé CEG, Szeglin BC, Smith JJ, Fuks Z, Riaz N, Chan TA, Nishimura M, Paty PB, Kolesnick R. Colorectal cancer develops inherent radiosensitivity that can be predicted using patient-derived organoids. Cancer Res 2022; 82:2298-2312. [PMID: 35472075 DOI: 10.1158/0008-5472.can-21-4128] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/21/2022] [Accepted: 04/22/2022] [Indexed: 11/16/2022]
Abstract
Identifying colorectal cancer patient populations responsive to chemotherapy or chemoradiation therapy before surgery remains a challenge. Recently validated mouse protocols for organoid irradiation employ the single hit multi-target (SHMT) algorithm, which yields a single value, the D0, as a measure of inherent tissue radiosensitivity. Here we translate these protocols to human tissue to evaluate radioresponsiveness of patient-derived organoids (PDOs) generated from normal human intestines and rectal tumors of patients undergoing neoadjuvant therapy. While PDOs from adenomas with a logarithmically-expanded Lgr5+-intestinal stem cell population retain the radioresistant phenotype of normal colorectal PDOs, malignant transformation yields PDOs from a large patient subpopulation displaying marked radiosensitivity due to reduced homologous recombination-mediated DNA repair. A proof-of-principle pilot clinical trial demonstrated that rectal cancer patient responses to neoadjuvant chemoradiation, including complete response, correlate closely with their PDO D0 values. Overall, upon transformation to colorectal adenocarcinoma, broad radiation sensitivity occurs in a large subset of patients that can be identified using SHMT analysis of PDO radiation responses.
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Affiliation(s)
- Kuo-Shun Hsu
- Memorial Sloan Kettering Cancer Center, New York City, United States
| | - Mohammad Adileh
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | | | - Vladimir Makarov
- Memorial Sloan Kettering Cancer Center, Cleveland, OH, United States
| | - Jiapeng Chen
- Memorial Sloan Kettering Cancer Center, Manhattan, New York, United States
| | - Chao Wu
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Sahra Bodo
- Memorial Sloan Kettering Cancer Center, New York, New York, United States
| | - Stefan Klingler
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | | | - Bryan C Szeglin
- Albert Einstein College of Medicine, Bronx, NY, United States
| | - J Joshua Smith
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Zvi Fuks
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Nadeem Riaz
- Memorial Sloan Kettering Cancer Center, Manhattan, New York, United States
| | | | - Makoto Nishimura
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Philip B Paty
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
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12
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Modulating the Antioxidant Response for Better Oxidative Stress-Inducing Therapies: How to Take Advantage of Two Sides of the Same Medal? Biomedicines 2022; 10:biomedicines10040823. [PMID: 35453573 PMCID: PMC9029215 DOI: 10.3390/biomedicines10040823] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 01/17/2023] Open
Abstract
Oxidative stress-inducing therapies are characterized as a specific treatment that involves the production of reactive oxygen and nitrogen species (RONS) by external or internal sources. To protect cells against oxidative stress, cells have evolved a strong antioxidant defense system to either prevent RONS formation or scavenge them. The maintenance of the redox balance ensures signal transduction, development, cell proliferation, regulation of the mechanisms of cell death, among others. Oxidative stress can beneficially be used to treat several diseases such as neurodegenerative disorders, heart disease, cancer, and other diseases by regulating the antioxidant system. Understanding the mechanisms of various endogenous antioxidant systems can increase the therapeutic efficacy of oxidative stress-based therapies, leading to clinical success in medical treatment. This review deals with the recent novel findings of various cellular endogenous antioxidant responses behind oxidative stress, highlighting their implication in various human diseases, such as ulcers, skin pathologies, oncology, and viral infections such as SARS-CoV-2.
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13
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Azorín-Vega EP, de León CL, García-Reyna MG, Vega-Carrillo HR. Mathematical description of the effect of HIF inhibition on the radiobiological response of LNCaP cells. Appl Radiat Isot 2022; 184:110157. [DOI: 10.1016/j.apradiso.2022.110157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 11/28/2022]
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14
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K-RAS Acts as a Critical Regulator of CD44 to Promote the Invasiveness and Stemness of GBM in Response to Ionizing Radiation. Int J Mol Sci 2021; 22:ijms222010923. [PMID: 34681583 PMCID: PMC8539357 DOI: 10.3390/ijms222010923] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/04/2021] [Accepted: 10/05/2021] [Indexed: 12/21/2022] Open
Abstract
Radiation therapy is a current standard-of-care treatment and is used widely for GBM patients. However, radiation therapy still remains a significant barrier to getting a successful outcome due to the therapeutic resistance and tumor recurrence. Understanding the underlying mechanisms of this resistance and recurrence would provide an efficient approach for improving the therapy for GBM treatment. Here, we identified a regulatory mechanism of CD44 which induces infiltration and mesenchymal shift of GBM. Ionizing radiation (IR)-induced K-RAS/ERK signaling activation elevates CD44 expression through downregulation of miR-202 and miR-185 expression. High expression of CD44 promotes SRC activation to induce cancer stemness and EMT features of GBM cells. In this study, we demonstrate that the K-RAS/ERK/CD44 axis is a key mechanism in regulating mesenchymal shift of GBM cells after irradiation. These findings suggest that blocking the K-RAS activation or CD44 expression could provide an efficient way for GBM treatment.
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15
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Roman M, Wrobel TP, Panek A, Paluszkiewicz C, Kwiatek WM. Exploring subcellular responses of prostate cancer cells to clinical doses of X-rays by Raman microspectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 255:119653. [PMID: 33773429 DOI: 10.1016/j.saa.2021.119653] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/16/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
Modern techniques of radiotherapy such as fractioned radiotherapy require applications of low doses of ionizing radiation (up to 10 Gy) for effective patient treatment. It is, therefore, crucial to understand the response mechanisms in cancer cells irradiated with low (clinical) doses. The cell's response to irradiation depends on a dose and post-irradiation time. Both factors should be considered when studying the influence of ionizing radiation on cancer cells. Thus, in the present study, PC-3 prostate cancer cells were irradiated with clinical doses of X-rays to determine dose- and time-dependent response to the irradiation. Raman spectroscopy and biological methods (MTT and comet assays) were applied for the analysis of biochemical changes in the cells induced by low doses of X-ray irradiation at 0 h and 24 h post-irradiation timepoints. Due to a limited view of the biochemical changes at the subcellular level given by single spectrum Raman measurements, Raman mapping of the whole cell area was performed. The results were compared with those obtained for cell irradiation with high doses. The analysis was based on the Partial Least Squares Regression (PLSR) method for the cytoplasmic and nuclear regions separately. Additionally, for the first time, irradiation classification was performed to confirm Raman spectroscopy as a powerful tool for studies on cancer cells treated with clinical doses of ionizing radiation.
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Affiliation(s)
- Maciej Roman
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland.
| | - Tomasz P Wrobel
- Solaris National Synchrotron Radiation Centre, Jagiellonian University, Czerwone Maki 98, 30-392, Krakow, Poland
| | - Agnieszka Panek
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland
| | - Czeslawa Paluszkiewicz
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland
| | - Wojciech M Kwiatek
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland
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16
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Galeaz C, Totis C, Bisio A. Radiation Resistance: A Matter of Transcription Factors. Front Oncol 2021; 11:662840. [PMID: 34141616 PMCID: PMC8204019 DOI: 10.3389/fonc.2021.662840] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/12/2021] [Indexed: 12/14/2022] Open
Abstract
Currently, radiation therapy is one of the standard therapies for cancer treatment. Since the first applications, the field of radiotherapy has constantly improved, both in imaging technologies and from a dose-painting point of view. Despite this, the mechanisms of resistance are still a great problem to overcome. Therefore, a more detailed understanding of these molecular mechanisms will allow researchers to develop new therapeutic strategies to eradicate cancer effectively. This review focuses on different transcription factors activated in response to radiotherapy and, unfortunately, involved in cancer cells’ survival. In particular, ionizing radiations trigger the activation of the immune modulators STAT3 and NF-κB, which contribute to the development of radiation resistance through the up-regulation of anti-apoptotic genes, the promotion of proliferation, the alteration of the cell cycle, and the induction of genes responsible for the Epithelial to Mesenchymal Transition (EMT). Moreover, the ROS-dependent damaging effects of radiation therapy are hampered by the induction of antioxidant enzymes by NF-κB, NRF2, and HIF-1. This protective process results in a reduced effectiveness of the treatment, whose mechanism of action relies mainly on the generation of free oxygen radicals. Furthermore, the previously mentioned transcription factors are also involved in the maintenance of stemness in Cancer Stem Cells (CSCs), a subset of tumor cells that are intrinsically resistant to anti-cancer therapies. Therefore, combining standard treatments with new therapeutic strategies targeted against these transcription factors may be a promising opportunity to avoid resistance and thus tumor relapse.
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Affiliation(s)
- Chiara Galeaz
- Laboratory of Radiobiology, Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Cristina Totis
- Laboratory of Radiobiology, Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Alessandra Bisio
- Laboratory of Radiobiology, Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
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17
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Zhu M, Ye C, Wang J, Yang G, Ying X. Activation of COL11A1 by PRRX1 promotes tumor progression and radioresistance in ovarian cancer. Int J Radiat Biol 2021; 97:958-967. [PMID: 33970764 DOI: 10.1080/09553002.2021.1928780] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 04/19/2021] [Accepted: 05/03/2021] [Indexed: 12/24/2022]
Abstract
PURPOSE Although radiotherapy is a common treatment option for all kinds of cancer patients, including ovarian cancer, a major obstacle limiting its application in the development of resistance. Therefore, it is urgently needed to clarify the mechanism of radiosensitivity modulation. MATERIALS AND METHODS We obtained open datasets and analyzed the expression of collagen type XI alpha 1 (COL11A1) in ovarian cancer patients with different stages. Meanwhile, the correlation of COL11A1 and survival outcomes is determined by Kaplan-Meier analysis. The role of COL11A1 in cell proliferation was observed in an in vitro knockdown system. SKOV3 radioresistant cells were established to determine the role of COL11A1 on radioresistant in ovarian cancer. RESULTS AND DISCUSSION COL11A1 were highly enriched in late-stage ovarian cancer tumor tissues and negatively correlated with survival outcomes in ovarian cancer. The functional analysis found that COL11A1 promoted ovarian cancer cell proliferation in vitro. Importantly, COL11A1 decreased radiosensitivity in ovarian cancer by AKT activation. Paired related homeobox 1 (PRRX1) acted as an upstream transcription factor to regulate COL11A1 expression in ovarian cancer. Increased COL11A1 expression is related to low survival outcomes and radiosensitivity in ovarian cancer. CONCLUSIONS Targeting COL11A1 is a promising strategy for improving radiotherapy efficiency.
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Affiliation(s)
- Miaomiao Zhu
- Department of Obstetrics and Gynecology, the Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chenxia Ye
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Wang
- Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Guangxia Yang
- Department of Rheumatology, the Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Xiaoyan Ying
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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18
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Ionizing Radiation Induces Resistant Glioblastoma Stem-Like Cells by Promoting Autophagy via the Wnt/β-Catenin Pathway. Life (Basel) 2021; 11:life11050451. [PMID: 34069945 PMCID: PMC8157563 DOI: 10.3390/life11050451] [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: 04/09/2021] [Revised: 05/13/2021] [Accepted: 05/17/2021] [Indexed: 12/20/2022] Open
Abstract
Therapeutic resistance in recurrent glioblastoma multiforme (GBM) after concurrent chemoradiotherapy (CCRT) is a challenging issue. Although standard fractionated radiation is essential to treat GBM, it has led to local recurrence along with therapy-resistant cells in the ionizing radiation (IR) field. Lines of evidence showed cancer stem cells (CSCs) play a vital role in therapy resistance in many cancer types, including GBM. However, the molecular mechanism is poorly understood. Here, we proposed that autophagy could be involved in GSC induction for radioresistance. In a clinical setting, patients who received radiation/chemotherapy had higher LC3II expression and showed poor overall survival compared with those with low LC3 II. In a cell model, U87MG and GBM8401 expressed high level of stemness markers CD133, CD44, Nestin, and autophagy marker P62/LC3II after receiving standard fractionated IR. Furthermore, Wnt/β-catenin proved to be a potential pathway and related to P62 by using proteasome inhibitor (MG132). Moreover, pharmacological inhibition of autophagy with BAF and CQ inhibit GSC cell growth by impairing autophagy flux as demonstrated by decrease Nestin, CD133, and SOX-2 levels. In conclusion, we demonstrated that fractionated IR could induce GSCs with the stemness phenotype by P62-mediated autophagy through the Wnt/β-catenin for radioresistance. This study offers a new therapeutic strategy for targeting GBM in the future.
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19
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Omar KA, Hasnaoui K, de la Lande A. First-Principles Simulations of Biological Molecules Subjected to Ionizing Radiation. Annu Rev Phys Chem 2021; 72:445-465. [PMID: 33878897 DOI: 10.1146/annurev-physchem-101419-013639] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Ionizing rays cause damage to genomes, proteins, and signaling pathways that normally regulate cell activity, with harmful consequences such as accelerated aging, tumors, and cancers but also with beneficial effects in the context of radiotherapies. While the great pace of research in the twentieth century led to the identification of the molecular mechanisms for chemical lesions on the building blocks of biomacromolecules, the last two decades have brought renewed questions, for example, regarding the formation of clustered damage or the rich chemistry involving the secondary electrons produced by radiolysis. Radiation chemistry is now meeting attosecond science, providing extraordinary opportunities to unravel the very first stages of biological matter radiolysis. This review provides an overview of the recent progress made in this direction, focusing mainly on the atto- to femto- to picosecond timescales. We review promising applications of time-dependent density functional theory in this context.
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Affiliation(s)
- Karwan Ali Omar
- Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, 91405 Orsay, France; .,Department of Chemistry, College of Education, University of Sulaimani, 41005 Kurdistan, Iraq
| | - Karim Hasnaoui
- High Performance Computing User Support Team, Institut du Développement et des Ressources en Informatique Scientifique (IDRIS), 91403 Orsay, France.,Maison de la Simulation, CNRS, Commissariat à l'Energie Atomique et aux Énergies Alternatives (CEA), Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Aurélien de la Lande
- Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, 91405 Orsay, France;
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20
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Abstract
Neoplastic transformation is reportedly associated with alterations of the potassium transport across plasma and intracellular membranes. These alterations have been identified as crucial elements of the tumourigenic reprogramming of cells. Potassium channels may contribute to cancer initiation, malignant progression and therapy resistance of tumour cells. The book chapter focusses on (oncogenic) potassium channels frequently upregulated in different tumour entities, upstream and downstream signalling of these channels, their contribution to the maintenance of cancer stemness and the formation of an immunosuppressive tumour microenvironment. In addition, their role in adaptation to tumour hypoxia, metabolic reprogramming, as well as tumour spreading and metastasis is discussed. Finally, we discuss how (oncogenic) potassium channels may confer treatment resistance of tumours against radiation and chemotherapy and thus might be harnessed for new therapy strategies, for instance, by repurposing approved drugs known to target potassium channels.
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21
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Mo Y, Zhang B, Pan Y, Qin Q, Ye Y, Li X, Huang L, Jiang W. Impact of the weekday of the first intensity-modulated radiotherapy treatment on the survival outcomes of patients with nasopharyngeal carcinoma: A multicenter cohort study. Oral Oncol 2021; 116:105258. [PMID: 33706048 DOI: 10.1016/j.oraloncology.2021.105258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/22/2021] [Accepted: 02/27/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND This study's purpose was to assess whether the weekday on which intensity-modulated radiotherapy (IMRT) is initiated influences survival outcomes in patients with nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS A total of 1440 patients with NPC who received IMRT were enrolled in this study between January 2010 and June 2016. The patients were divided into five groups according to the weekday of their first radiotherapy treatment. Group 1 (n = 322), Group 2 (n = 322), Group 3 (n = 286), Group 4 (n = 292) and Group 5 (n = 218) received first radiotherapy on Monday, Tuesday, Wednesday, Thursday and Friday respectively. Differences in the rates of overall survival (OS), disease-free survival (DFS), loco-regional relapse-free survival (LRRFS) and distant metastasis-free survival (DMFS) were compared among the five groups using the Kaplan-Meier method and Cox regression models. RESULTS No significant differences were found in OS, DFS, LRRFS or DMFS among the five groups. The Cox regression analysis showed that the weekday on which the radiotherapy was initiated was not an independent predictor of OS (Hazard Ratio [HR], 1.056; 95%CI: 0.959-1.164, P = 0.268), DFS (HR, 1.067; 95% CI: 0.980-1.161, P = 0.137), LRRFS (HR, 1.069; 95% CI: 0.914-1.249, P = 0.404) and DMFS (HR, 1.027; 95% CI: 0.929-1.134, P = 0.607). The subgroup analysis showed no significant differences among the five groups. CONCLUSIONS This study showed that the day of the week that patients with nasopharyngeal carcinoma begin radiotherapy has no effect on their survival outcomes.
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Affiliation(s)
- Yunyan Mo
- Department of Radiation Oncology, Guilin Medical University Affiliated Hospital, Guilin 541001, China
| | - Bin Zhang
- Department of Radiation Oncology, Wuzhou Red Cross Hospital, Wuzhou 543002, China
| | - Yufei Pan
- Department of Radiation Oncology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin 541004, China
| | - Qinghua Qin
- Department of Radiation Oncology, Guilin Medical University Affiliated Hospital, Guilin 541001, China
| | - Yaomin Ye
- Department of Radiation Oncology, Guilin Medical University Affiliated Hospital, Guilin 541001, China
| | - Xi Li
- Department of Radiation Oncology, Guilin Medical University Affiliated Hospital, Guilin 541001, China
| | - Liying Huang
- Department of Radiation Oncology, Guilin Medical University Affiliated Hospital, Guilin 541001, China
| | - Wei Jiang
- Department of Radiation Oncology, Guilin Medical University Affiliated Hospital, Guilin 541001, China.
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22
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Martinotti S, Pellavio G, Patrone M, Laforenza U, Ranzato E. Manuka Honey Induces Apoptosis of Epithelial Cancer Cells through Aquaporin-3 and Calcium Signaling. Life (Basel) 2020; 10:life10110256. [PMID: 33120979 PMCID: PMC7692226 DOI: 10.3390/life10110256] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 10/24/2020] [Accepted: 10/25/2020] [Indexed: 12/13/2022] Open
Abstract
Honey is a natural product with a long use in traditional medicine and is well recognized to regulate different biological events. It is an important source of various biological or pharmacological molecules and, therefore, there is a strong interest to explore their properties. Evidence is growing that honey may have the potential to be an anticancer agent acting through several mechanisms. Here we observed for the first time in a cancer cell line a possible mechanism through which honey could induce an alteration in the intracellular reactive oxygen species and homeostatic balance of intracellular calcium concentration leading to cell death by apoptosis. This mechanism seems to be enhanced by manuka honey’s ability to maintain high H2O2 permeability through aquaporin-3.
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Affiliation(s)
- Simona Martinotti
- DiSIT- Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, viale Teresa Michel 11, 15121 Alessandria, Italy; (S.M.); (M.P.)
- DiSIT- Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, piazza Sant’Eusebio 5, 13100 Vercelli, Italy
| | - Giorgia Pellavio
- Department of Molecular Medicine, Human Physiology Unit, University of Pavia, 27100 Pavia, Italy; (G.P.); (U.L.)
| | - Mauro Patrone
- DiSIT- Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, viale Teresa Michel 11, 15121 Alessandria, Italy; (S.M.); (M.P.)
| | - Umberto Laforenza
- Department of Molecular Medicine, Human Physiology Unit, University of Pavia, 27100 Pavia, Italy; (G.P.); (U.L.)
| | - Elia Ranzato
- DiSIT- Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, viale Teresa Michel 11, 15121 Alessandria, Italy; (S.M.); (M.P.)
- DiSIT- Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, piazza Sant’Eusebio 5, 13100 Vercelli, Italy
- Correspondence: ; Tel.: +39-0131-360260; Fax: +39-0131-360243
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Pansare K, Raj Singh S, Chakravarthy V, Gupta N, Hole A, Gera P, Sarin R, Murali Krishna C. Raman Spectroscopy: An Exploratory Study to Identify Post-Radiation Cell Survival. APPLIED SPECTROSCOPY 2020; 74:553-562. [PMID: 32031014 DOI: 10.1177/0003702820908352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Resistance to radiotherapy has been an impediment in the treatment of cancer, and the inability to detect it at an early stage further exacerbates the prognosis. We have assessed the feasibility of Raman spectroscopy as a rapid assay for predicting radiosensitivity of cancer cells in comparison to the conventional biological assays. Cell lines derived from breast adenocarcinoma (MCF7), gingivobuccal squamous cell carcinoma (ITOC-03), and human embryonic kidney (HEK293) were subjected to varying doses of ionizing radiation. Cell viability of irradiated cells was assessed at different time points using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and Raman spectroscopy, and colony-forming capability was evaluated by clonogenic assay. Radiosensitivity observed using MTT assay was limited by the finding of similar cell viability in all the three cell lines 24 h post-irradiation. However, cell survival assessed using clonogenic assay and principal component linear discriminant analysis (PC-LDA) classification of Raman spectra showed correlating patterns. Irradiated cells showed loss of nucleic acid features and enhancement of 750 cm-1 peak probably attributing to resonance Raman band of cytochromes in all three cell lines. PC-LDA analysis affirmed MCF7 to be a radioresistant cell line as compared to ITOC-03 and HEK293 to be the most radiosensitive cell line. Raman spectroscopy is shown to be a rapid and alternative assay for identification of radiosensitivity as compared to the gold standard clonogenic assay.
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Affiliation(s)
- Kshama Pansare
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
| | - Saurav Raj Singh
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
| | - Venkatavaradhan Chakravarthy
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
| | - Neha Gupta
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
| | - Arti Hole
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
| | - Poonam Gera
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
| | - Rajiv Sarin
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Chilakapati Murali Krishna
- Advanced Center for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Center (TMC), Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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24
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Palme D, Misovic M, Ganser K, Klumpp L, Salih HR, Zips D, Huber SM. hERG K + Channels Promote Survival of Irradiated Leukemia Cells. Front Pharmacol 2020; 11:489. [PMID: 32390841 PMCID: PMC7194033 DOI: 10.3389/fphar.2020.00489] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 03/27/2020] [Indexed: 12/19/2022] Open
Abstract
Many tumor cells express highly elevated activities of voltage-gated K+ channels in the plasma membrane which are indispensable for tumor growth. To test for K+ channel function during DNA damage response, we subjected human chronic myeloid leukemia (CML) cells to sub-lethal doses of ionizing radiation (0-8 Gy, 6 MV photons) and determined K+ channel activity, K+ channel-dependent Ca2+ signaling, cell cycle progression, DNA repair, and clonogenic survival by whole-cell patch clamp recording, fura-2 Ca2+ imaging, Western blotting, flow cytometry, immunofluorescence microscopy, and pre-plating colony formation assay, respectively. As a result, the human erythroid CML cell line K562 and primary human CML cells functionally expressed hERG1. Irradiation stimulated in both cell types an increase in the activity of hERG1 K+ channels which became apparent 1-2 h post-irradiation. This increase in K+ channel activity was paralleled by an accumulation in S phase of cell cycle followed by a G2/M cell cycle arrest as analyzed between 8 and 72 h post-irradiation. Attenuating the K+ channel function by applying the hERG1 channel inhibitor E4031 modulated Ca2+ signaling, impaired inhibition of the mitosis promoting subunit cdc2, overrode cell cycle arrest, and decreased clonogenic survival of the irradiated cells but did not affect repair of DNA double strand breaks suggesting a critical role of the hERG1 K+ channels for the Ca2+ signaling and the cell cycle control during DNA damage response.
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Affiliation(s)
- Daniela Palme
- Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany
| | - Milan Misovic
- Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany
| | - Katrin Ganser
- Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany
| | - Lukas Klumpp
- Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany
| | - Helmut R Salih
- Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK), University Hospital Tübingen, Tübingen, Germany
| | - Daniel Zips
- Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany.,German Cancer Consortium (DKTK), Partner Site Tübingen, Tübingen, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stephan M Huber
- Department of Radiation Oncology, University Hospital Tübingen, Tübingen, Germany
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25
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26
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Alvarez-Ibarra A, Parise A, Hasnaoui K, de la Lande A. The physical stage of radiolysis of solvated DNA by high-energy-transfer particles: insights from new first principles simulations. Phys Chem Chem Phys 2020; 22:7747-7758. [DOI: 10.1039/d0cp00165a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Electron dynamics simulations based on density functional theory are carried out on nanometric molecular systems to decipher the primary processes following irradiation of bio-macromolecules by high energy transfer charged particles.
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Affiliation(s)
| | - Angela Parise
- Université Paris-Saclay
- CNRS
- Institut de Chimie Physique UMR8000
- Orsay
- France
| | - Karim Hasnaoui
- Institut du Développement et des Ressources en Informatique Scientifique
- Rue John von Neumann
- Orsay
- France
- Maison de la Simulation
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27
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Baptistella AR, Landemberger MC, Dias MVS, Giudice FS, Rodrigues BR, da Silva PPCE, Cassinela EK, Lacerda TC, Marchi FA, Leme AFP, Begnami MD, Aguiar S, Martins VR. Rab5C enhances resistance to ionizing radiation in rectal cancer. J Mol Med (Berl) 2019; 97:855-869. [DOI: 10.1007/s00109-019-01760-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/08/2019] [Accepted: 02/18/2019] [Indexed: 11/30/2022]
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28
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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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29
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Michels S, Ganjam GK, Martins H, Schratt GM, Wöhr M, Schwarting RKW, Culmsee C. Downregulation of the psychiatric susceptibility gene Cacna1c promotes mitochondrial resilience to oxidative stress in neuronal cells. Cell Death Discov 2018; 4:54. [PMID: 29760952 PMCID: PMC5945680 DOI: 10.1038/s41420-018-0061-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 04/03/2018] [Indexed: 12/21/2022] Open
Abstract
Affective disorders such as major depression and bipolar disorder are among the most prevalent forms of mental illness and their etiologies involve complex interactions between genetic and environmental risk factors. Over the past ten years, several genome wide association studies (GWAS) have identified CACNA1C as one of the strongest genetic risk factors for the development of affective disorders. However, its role in disease pathogenesis is still largely unknown. Vulnerability to affective disorders also involves diverse environmental risk factors such as perinatal insults, childhood maltreatment, and other adverse pathophysiological or psychosocial life events. At the cellular level, such environmental influences may activate oxidative stress pathways, thereby altering neuronal plasticity and function. Mitochondria are the key organelles of energy metabolism and, further, highly important for the adaptation to oxidative stress. Accordingly, multiple lines of evidence including post-mortem brain and neuro-imaging studies suggest that psychiatric disorders are accompanied by mitochondrial dysfunction. In this study, we investigated the effects of Cacna1c downregulation in combination with glutamate-induced oxidative stress on mitochondrial function, Ca2+ homeostasis, and cell viability in mouse hippocampal HT22 cells. We found that the siRNA-mediated knockdown of Cacna1c preserved mitochondrial morphology, mitochondrial membrane potential, and ATP levels after glutamate treatment. Further, Cacna1c silencing inhibited excessive mitochondrial reactive oxygen species formation and calcium influx, and protected the HT22 cells from oxidative cell death. Overall, our findings suggest that the GWAS-confirmed psychiatric risk gene CACNA1C plays a major role in oxidative stress pathways with particular impact on mitochondrial integrity and function.
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Affiliation(s)
- Susanne Michels
- 1Institute of Pharmacology and Clinical Pharmacy, Philipps-University, Marburg, Germany.,2Center for Mind, Brain and Behavior, Philipps-University, Marburg, Germany
| | - Goutham K Ganjam
- 1Institute of Pharmacology and Clinical Pharmacy, Philipps-University, Marburg, Germany.,2Center for Mind, Brain and Behavior, Philipps-University, Marburg, Germany
| | - Helena Martins
- 2Center for Mind, Brain and Behavior, Philipps-University, Marburg, Germany.,3Department of Health Sciences and Technology, Systems Neuroscience, ETH Zurich, Zurich, Switzerland
| | - Gerhard M Schratt
- 2Center for Mind, Brain and Behavior, Philipps-University, Marburg, Germany.,3Department of Health Sciences and Technology, Systems Neuroscience, ETH Zurich, Zurich, Switzerland
| | - Markus Wöhr
- 2Center for Mind, Brain and Behavior, Philipps-University, Marburg, Germany.,4Department of Experimental and Biological Psychology, Behavioral Neuroscience, Philipps-University, Marburg, Germany
| | - Rainer K W Schwarting
- 2Center for Mind, Brain and Behavior, Philipps-University, Marburg, Germany.,4Department of Experimental and Biological Psychology, Behavioral Neuroscience, Philipps-University, Marburg, Germany
| | - Carsten Culmsee
- 1Institute of Pharmacology and Clinical Pharmacy, Philipps-University, Marburg, Germany.,2Center for Mind, Brain and Behavior, Philipps-University, Marburg, Germany
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30
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Liamina D, Sibirnyj W, Khokhlova A, Saenko V, Rastorgueva E, Fomin A, Saenko Y. Radiation-Induced Changes of microRNA Expression Profiles in Radiosensitive and Radioresistant Leukemia Cell Lines with Different Levels of Chromosome Abnormalities. Cancers (Basel) 2017; 9:cancers9100136. [PMID: 29027959 PMCID: PMC5664075 DOI: 10.3390/cancers9100136] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/07/2017] [Accepted: 10/10/2017] [Indexed: 12/15/2022] Open
Abstract
In our study, we estimate an effect from chromosome aberrations and genome mutations on changes in microRNA expression profiles in cancer cell lines demonstrating different radiosensitivity. Here, cell viability and microRNA spectrum have been estimated 1, 4, and 24 h after irradiation. MiSeq high-throughput sequencing system (Illumina, San Diego, CA, USA) is employed to perform microRNA spectrum estimation. In the K562 cell line, the number of expressed microRNAs in chromosomes demonstrates a more pronounced variation. An analysis of microRNA effects on signaling pathway activity demonstrates differences in post-transcriptional regulation of the expression of genes included into 40 signaling pathways. In the K562 cell line, microRNA dynamics analyzed for their dependence on chromosome localization show a wider scattering of microRNA expression values for a pair of chromosomes compared to the HL-60 cell line. An analysis of microRNAs expression in the K562 and HL-60 cell lines after irradiation has shown that chromosome abnormalities can affect microRNA expression changes. A study of radiation-induced changes of microRNA expression profiles in the K562 and HL-60 cell lines has revealed a dependence of microRNA expression changes on the number of chromosome aberrations and genome mutations.
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Affiliation(s)
- Daria Liamina
- Laboratory of Molecular and Cell Biology, S.P. Kapitsa Research Institute of Technology, Ulyanovsk State University, 42 Lva Tolstogo St., Ulyanovsk 432017, Russia.
| | - Wladimir Sibirnyj
- Department of Bioenergetics and Food Analysis, Faculty of Biology and Agriculture, University of Rzeszow, Ćwiklińskiej St., 35-601 Rzeszów, Poland.
| | - Anna Khokhlova
- Laboratory of Molecular and Cell Biology, S.P. Kapitsa Research Institute of Technology, Ulyanovsk State University, 42 Lva Tolstogo St., Ulyanovsk 432017, Russia.
| | - Viacheslav Saenko
- Laboratory of Molecular and Cell Biology, S.P. Kapitsa Research Institute of Technology, Ulyanovsk State University, 42 Lva Tolstogo St., Ulyanovsk 432017, Russia.
| | - Eugenia Rastorgueva
- Department of General and Clinical Pharmacology and Microbiology, Faculty of Medicine, Ulyanovsk State University, 42 Lva Tolstogo St., Ulyanovsk 432017, Russia.
| | - Aleksandr Fomin
- S.P. Kapitsa Research Institute of Technology, Ulyanovsk State University, 42 Lva Tolstogo St., Ulyanovsk 432017, Russia.
| | - Yury Saenko
- Laboratory of Molecular and Cell Biology, S.P. Kapitsa Research Institute of Technology, Ulyanovsk State University, 42 Lva Tolstogo St., Ulyanovsk 432017, Russia.
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31
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Karlsson M, Ardenkjær-Larsen JH, Lerche MH. Hyperpolarized 133Cs is a sensitive probe for real-time monitoring of biophysical environments. Chem Commun (Camb) 2017; 53:6625-6628. [PMID: 28585639 DOI: 10.1039/c7cc02943h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
133Cs NMR is a valuable tool for non-invasive analysis of biological systems, where chemical shift and relaxation properties report on changes in the physical environment. Hyperpolarization can increase the liquid-state 133Cs NMR signal by several orders of magnitude and allow real-time monitoring of physical changes in cell based systems.
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Affiliation(s)
- M Karlsson
- Technical University of Denmark, Department of Electrical Engineering, Center for Hyperpolarization in Magnetic Resonance, Building 349, DK-2800 Kgs Lyngby, Denmark.
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32
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Zhou S, Cui Y, Yu D, Liang J, Zhang M, Ye W. MicroRNA-381 enhances radiosensitivity in esophageal squamous cell carcinoma by targeting X-linked inhibitor of apoptosis protein. Onco Targets Ther 2017; 10:2527-2538. [PMID: 28546757 PMCID: PMC5436762 DOI: 10.2147/ott.s134551] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background Increasing evidence indicates that radioresistance remains a major problem in the treatment of patients with esophageal squamous cell carcinoma (ESCC). This study was designed to investigate the expression of microRNA-381 (miR-381) and its function in the radioresistance of ESCC. Methods In this study, miR-381 expression was first detected in ESCC cell lines and tissue samples by quantitative real-time polymerase chain reaction (qRT-PCR). Then, the effects of miR-381 expression on growth, apoptosis, and radiosensitivity of ESCC cells were analyzed by MTT, colony formation, and flow cytometry, respectively. Dual-luciferase reporter assays were performed to validate the regulation of a putative target of miR-381, in corroboration with qRT-PCR and Western blotting assays. Results ESCC cell lines or tissues were found to express significantly lower miR-381 than normal esophageal epithelial cells or adjacent normal tissues, respectively. Ectopic expression of miR-381 in ESCC cell lines blocked proliferation, reduced colony formation, enhanced apoptosis, and increased radiosensitivity by enhancing irradiation-induced apoptosis. In addition, dual-luciferase reporter assays showed that miR-381 binds to the 3′-untranslated region of X-linked inhibitor of apoptosis protein (XIAP), suggesting that XIAP should be a direct target of miR-381. Re-expression of miR-381 suppressed XIAP protein expression in ESCC cells, and the effects of miR-381 upregulation on ESCC cells were found to be similar with silencing of XIAP. In addition, XIAP mRNA expression significantly increased in ESCC tissues and was inversely correlated with miR-381 expression. Conclusion The results of this study suggest that miR-381/XIAP pathway contributed to the growth inhibition, increase in apoptosis, and enhancement of radiosensitivity in ESCC cells Therefore, miR-381 may be a potential therapeutic target in human ESCC.
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Affiliation(s)
| | | | | | | | - Mingxin Zhang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wenguang Ye
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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33
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Reply to the Letter to the Editor by D. D’Arcangelo et al.: “Ion Channels in Brain Metastasis”—Ion Channels in Cancer Set up and Metastatic Progression Ion Channels in Brain Metastasis. Int J Mol Sci 2017; 18:ijms18040719. [PMID: 28350326 PMCID: PMC5412305 DOI: 10.3390/ijms18040719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 03/23/2017] [Accepted: 03/23/2017] [Indexed: 11/16/2022] Open
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34
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Lee SY, Jeong EK, Ju MK, Jeon HM, Kim MY, Kim CH, Park HG, Han SI, Kang HS. Induction of metastasis, cancer stem cell phenotype, and oncogenic metabolism in cancer cells by ionizing radiation. Mol Cancer 2017; 16:10. [PMID: 28137309 PMCID: PMC5282724 DOI: 10.1186/s12943-016-0577-4] [Citation(s) in RCA: 354] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/25/2016] [Indexed: 12/12/2022] Open
Abstract
Radiation therapy is one of the major tools of cancer treatment, and is widely used for a variety of malignant tumours. Radiotherapy causes DNA damage directly by ionization or indirectly via the generation of reactive oxygen species (ROS), thereby destroying cancer cells. However, ionizing radiation (IR) paradoxically promotes metastasis and invasion of cancer cells by inducing the epithelial-mesenchymal transition (EMT). Metastasis is a major obstacle to successful cancer therapy, and is closely linked to the rates of morbidity and mortality of many cancers. ROS have been shown to play important roles in mediating the biological effects of IR. ROS have been implicated in IR-induced EMT, via activation of several EMT transcription factors—including Snail, HIF-1, ZEB1, and STAT3—that are activated by signalling pathways, including those of TGF-β, Wnt, Hedgehog, Notch, G-CSF, EGFR/PI3K/Akt, and MAPK. Cancer cells that undergo EMT have been shown to acquire stemness and undergo metabolic changes, although these points are debated. IR is known to induce cancer stem cell (CSC) properties, including dedifferentiation and self-renewal, and to promote oncogenic metabolism by activating these EMT-inducing pathways. Much accumulated evidence has shown that metabolic alterations in cancer cells are closely associated with the EMT and CSC phenotypes; specifically, the IR-induced oncogenic metabolism seems to be required for acquisition of the EMT and CSC phenotypes. IR can also elicit various changes in the tumour microenvironment (TME) that may affect invasion and metastasis. EMT, CSC, and oncogenic metabolism are involved in radioresistance; targeting them may improve the efficacy of radiotherapy, preventing tumour recurrence and metastasis. This study focuses on the molecular mechanisms of IR-induced EMT, CSCs, oncogenic metabolism, and alterations in the TME. We discuss how IR-induced EMT/CSC/oncogenic metabolism may promote resistance to radiotherapy; we also review efforts to develop therapeutic approaches to eliminate these IR-induced adverse effects.
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Affiliation(s)
- Su Yeon Lee
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Eui Kyong Jeong
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Min Kyung Ju
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Hyun Min Jeon
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Min Young Kim
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Pusan, 619-953, Korea
| | - Cho Hee Kim
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea.,DNA Identification Center, National Forensic Service, Seoul, 158-707, Korea
| | - Hye Gyeong Park
- Nanobiotechnology Center, Pusan National University, Pusan, 609-735, Korea
| | - Song Iy Han
- The Division of Natural Medical Sciences, College of Health Science, Chosun University, Gwangju, 501-759, Korea
| | - Ho Sung Kang
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea.
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Shimura T. Targeting the AKT/cyclin D1 pathway to overcome intrinsic and acquired radioresistance of tumors for effective radiotherapy. Int J Radiat Biol 2016; 93:381-385. [PMID: 27910734 DOI: 10.1080/09553002.2016.1257832] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE Radiotherapy (RT) is a powerful tool in the treatment of cancer, having the advantage of preserving normal tissues. Clinical outcomes of RT are significantly improved by technological advances, enabling increased radiation doses directed very specifically to a tumor. However, tumor radioresistance remains a major impediment to effective RT. We have shown that human tumor cells surviving after repeated exposure to fractionated radiation (FR) of X-rays for 1 month have acquired radioresistance through constitutive activation of AKT and downstream cyclin D1 nuclear retention. Tumor radioresistance is also proposed to be an intrinsic characteristic of cancer stem cells (CSC), whose efficient DNA repair is thought to confer this phenotype. We have isolated radioresistant CD133-positive cells following exposure to long-term FR. These cells exhibited the CSC phenotype with activation of the AKT/cyclin D1 pathway. In this review, I summarize our current understanding of the molecular mechanisms underlying tumor radioresistance and propose a strategy for overcoming radioresistance by targeting the AKT/cyclin D1 pathway. CONCLUSION Two different mechanisms: acquired radioresistance of surviving tumor cells after RT and intrinsic radioresistance of CSC are associated with tumor radioresistance. Inhibition of the AKT pathway results in radiosensitization of both types of tumor radioresistance.
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Affiliation(s)
- Tsutomu Shimura
- a Department of Environmental Health , National Institute of Public Health , Minami, Wako , Saitama , Japan
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36
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Ion Channels in Brain Metastasis. Int J Mol Sci 2016; 17:ijms17091513. [PMID: 27618016 PMCID: PMC5037790 DOI: 10.3390/ijms17091513] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 09/05/2016] [Accepted: 09/06/2016] [Indexed: 12/19/2022] Open
Abstract
Breast cancer, lung cancer and melanoma exhibit a high metastatic tropism to the brain. Development of brain metastases severely worsens the prognosis of cancer patients and constrains curative treatment options. Metastasizing to the brain by cancer cells can be dissected in consecutive processes including epithelial-mesenchymal transition, evasion from the primary tumor, intravasation and circulation in the blood, extravasation across the blood-brain barrier, formation of metastatic niches, and colonization in the brain. Ion channels have been demonstrated to be aberrantly expressed in tumor cells where they regulate neoplastic transformation, malignant progression or therapy resistance. Moreover, many ion channel modulators are FDA-approved drugs and in clinical use proposing ion channels as druggable targets for future anti-cancer therapy. The present review article aims to summarize the current knowledge on the function of ion channels in the different processes of brain metastasis. The data suggest that certain channel types involving voltage-gated sodium channels, ATP-release channels, ionotropic neurotransmitter receptors and gap junction-generating connexins interfere with distinct processes of brain metastazation.
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Jin YY, Chen QJ, Wei Y, Wang YL, Wang ZW, Xu K, He Y, Ma HB. Upregulation of microRNA-98 increases radiosensitivity in esophageal squamous cell carcinoma. JOURNAL OF RADIATION RESEARCH 2016; 57:468-476. [PMID: 27422937 PMCID: PMC5045086 DOI: 10.1093/jrr/rrw068] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 05/17/2016] [Indexed: 05/04/2023]
Abstract
Although radiation resistance is a common challenge in the clinical treatment of esophageal squamous cell carcinoma (ESCC), an effective treatment strategy has yet to be developed. Aberrant expression of microRNAs (miRNAs) is responsible for cancer sensitivity to radiation. In this study, we aimed to identify the miRNAs that are associated with radioresistance in ESCC. We used a miRNA microarray to perform a comparison of miRNA expression in both ESCC parental and acquired radioresistance cell lines. qRT-PCR was used to confirm the alterations. Cell radiosensitivity was determined with a survival fraction assay. Functional analyses of the identified miRNA in ESCC cells with regard to metastasis and apoptosis were performed by transwell assays and flow cytometry. The miRNA targets were identified with pathway analysis and confirmed with a luciferase assay. miR-98 was recognized as the most downregulated miRNA in established radioresistant cell line. AmiR-98 mimic enforced the expression of miRNA-98 and made ESCC cells sensitive to radiotherapy, while anti-miR-98 reversed this process. Optimal results were achieved by decreasing cellular proliferation, decreasing cell migration and inducing apoptosis. The luciferase target gene analysis results showed that the overexpression of miRNA-98 inhibited tumor growth and resistance tolerance by directly binding to the BCL-2 gene. Our study indicated that increasing miRNA-98 expression can be used as a potential radiosensitive therapeutic strategy for treating esophageal cancer cells.
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Affiliation(s)
- Ying-Ying Jin
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Lu, Xi'an 710004, Shaanxi Province, China
| | - Qing-Juan Chen
- Department of Oncology, Xianyang Center Hospital, Xianyang City, 610041, Shaanxi Province, China
| | - Yang Wei
- Scientific Research Center, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Lu, Xi'an 710004, Shaanxi Province, China
| | - Ya-Li Wang
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Lu, Xi'an 710004, Shaanxi Province, China
| | - Zhong-Wei Wang
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Lu, Xi'an 710004, Shaanxi Province, China
| | - Kun Xu
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Lu, Xi'an 710004, Shaanxi Province, China
| | - Yun He
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Lu, Xi'an 710004, Shaanxi Province, China
| | - Hong-Bing Ma
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Lu, Xi'an 710004, Shaanxi Province, China
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Eckert F, Schmitt J, Zips D, Krueger MA, Pichler BJ, Gillies SD, Strittmatter W, Handgretinger R, Schilbach K. Enhanced binding of necrosis-targeting immunocytokine NHS-IL12 after local tumour irradiation in murine xenograft models. Cancer Immunol Immunother 2016; 65:1003-13. [PMID: 27376889 PMCID: PMC11028816 DOI: 10.1007/s00262-016-1863-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 06/22/2016] [Indexed: 12/20/2022]
Abstract
PURPOSE NHS-IL12 is an immunocytokine targeting necrotic tumour areas. IL12 shows anti-tumour activity. As local irradiation might induce additional necrosis in solid tumours, we aimed to evaluate the increase in intratumoural accumulation of NHS-IL12 after irradiation and correlate the findings with diffusion-weighted MRI studies in two xenograft models. METHODS Human rhabdomyosarcoma (A204) and prostate cancer (PC3) cells were studied in vitro and as subcutaneous xenografts. Radiation sensitivity of the cell lines was assessed in vitro by colony formation assays. In vivo tumour necrosis was assessed based on apparent diffusion coefficients (ADC). Biodistribution of NHS-IL12 was evaluated with and without tumour irradiation using in vivo small-animal PET and ex vivo biodistribution. RESULTS A204 and PC3 differed in their intrinsic radiation sensitivity. Accordingly, radiation-induced tumour necrosis was found only in A204 xenografts. In comparison with control, ADC was significantly increased after irradiation of A204 tumours with 1 × 8.0 Gy and 5 × 2.0 Gy, whereas no change in ADC was observed in PC3 xenografts in all irradiation regimes. ADC correlated with histology. An enhanced uptake of radiolabelled NHS-IL12 in A204 tumours was detected by PET and ex vivo biodistribution after tumour irradiation. In PC3 tumours, no increase in NHS-IL12 uptake was observed. CONCLUSIONS In dependence of the tumour model, tumour irradiation enhanced tumour necrosis measured in MRI and histology. In vivo PET and ex vivo biodistribution showed enhanced binding of NHS-IL12 in rhabdomyosarcoma xenografts. Thus, enhanced binding of necrosis-targeting immunocytokines might be a novel mechanism of additive effects in combination with irradiation.
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Affiliation(s)
- Franziska Eckert
- Department of Radiation Oncology, Eberhard Karls University Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany.
| | - Julia Schmitt
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, Eberhard Karls University Tübingen, Röntgenweg 13, 72076, Tübingen, Germany
| | - Daniel Zips
- Department of Radiation Oncology, Eberhard Karls University Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - Marcel A Krueger
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, Eberhard Karls University Tübingen, Röntgenweg 13, 72076, Tübingen, Germany
| | - Bernd J Pichler
- Department of Preclinical Imaging and Radiopharmacy, Werner Siemens Imaging Center, Eberhard Karls University Tübingen, Röntgenweg 13, 72076, Tübingen, Germany
| | | | - Wolfgang Strittmatter
- Merck Serono R&D, Global Early Development, Merck KGaA, Frankfurter Str. 250, 64293, Darmstadt, Germany
| | - Rupert Handgretinger
- Department of General Pediatrics, Oncology/Hematology, Eberhard Karls University Tübingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - Karin Schilbach
- Department of General Pediatrics, Oncology/Hematology, Eberhard Karls University Tübingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
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Abraham JA, Yeghiazaryan K, Golubnitschaja O. Selective internal radiation therapy in treatment of hepatocellular carcinoma: new concepts of personalization. Per Med 2016; 13:347-360. [PMID: 29749819 DOI: 10.2217/pme-2016-0014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hepatocellular carcinoma (HCC) is a global health problem, with more than half a million new cases diagnosed annually and mortality rates at similar level. The majority of HCC is diagnosed at intermediate-advanced stages being, therefore, an issue for palliative rather than curative care. Selective internal radiation therapy (SIRT) is one of the best appropriate palliative treatment modalities in HCC management. Although delivering satisfactory results, SIRT application comes along with frequent complications and tumor recurrence. Recent studies suggest treatment algorithm tailored to the person as improving individual outcomes and reducing treatment-related complications. This review provides insights to implicate innovative concepts of predictive, preventive and personalized medicine in SIRT application to HCC cohorts.
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Stegen B, Klumpp L, Misovic M, Edalat L, Eckert M, Klumpp D, Ruth P, Huber SM. K + channel signaling in irradiated tumor cells. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2016; 45:585-598. [PMID: 27165704 DOI: 10.1007/s00249-016-1136-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/24/2016] [Accepted: 04/20/2016] [Indexed: 12/17/2022]
Abstract
K+ channels crosstalk with biochemical signaling cascades and regulate virtually all cellular processes by adjusting the intracellular K+ concentration, generating the membrane potential, mediating cell volume changes, contributing to Ca2+ signaling, and directly interacting within molecular complexes with membrane receptors and downstream effectors. Tumor cells exhibit aberrant expression and activity patterns of K+ channels. The upregulation of highly "oncogenic" K+ channels such as the Ca2+-activated IK channel may drive the neoplastic transformation, malignant progression, metastasis, or therapy resistance of tumor cells. In particular, ionizing radiation in doses used for fractionated radiotherapy in the clinic has been shown to activate K+ channels. Radiogenic K+ channel activity, in turn, contributes to the DNA damage response and promotes survival of the irradiated tumor cells. Tumor-specific overexpression of certain K+ channel types together with the fact that pharmacological K+ channel modulators are already in clinical use or well tolerated in clinical trials suggests that K+ channel targeting alone or in combination with radiotherapy might become a promising new strategy of anti-cancer therapy. The present article aims to review our current knowledge on K+ channel signaling in irradiated tumor cells. Moreover, it provides new data on molecular mechanisms of radiogenic K+ channel activation and downstream signaling events.
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Affiliation(s)
- Benjamin Stegen
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Lukas Klumpp
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany.,Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany
| | - Milan Misovic
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Lena Edalat
- Department of Pharmacology, Toxicology and Clinical Pharmacy, University of Tübingen, Tübingen, Germany
| | - Marita Eckert
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Dominik Klumpp
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Peter Ruth
- Department of Pharmacology, Toxicology and Clinical Pharmacy, University of Tübingen, Tübingen, Germany
| | - Stephan M Huber
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany.
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Targeting TRPM2 Channels Impairs Radiation-Induced Cell Cycle Arrest and Fosters Cell Death of T Cell Leukemia Cells in a Bcl-2-Dependent Manner. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:8026702. [PMID: 26839633 PMCID: PMC4709732 DOI: 10.1155/2016/8026702] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 10/15/2015] [Indexed: 11/18/2022]
Abstract
Messenger RNA data of lymphohematopoietic cancer lines suggest a correlation between expression of the cation channel TRPM2 and the antiapoptotic protein Bcl-2. The latter is overexpressed in various tumor entities and mediates therapy resistance. Here, we analyzed the crosstalk between Bcl-2 and TRPM2 channels in T cell leukemia cells during oxidative stress as conferred by ionizing radiation (IR). To this end, the effects of TRPM2 inhibition or knock-down on plasma membrane currents, Ca2+ signaling, mitochondrial superoxide anion formation, and cell cycle progression were compared between irradiated (0–10 Gy) Bcl-2-overexpressing and empty vector-transfected Jurkat cells. As a result, IR stimulated a TRPM2-mediated Ca2+-entry, which was higher in Bcl-2-overexpressing than in control cells and which contributed to IR-induced G2/M cell cycle arrest. TRPM2 inhibition induced a release from G2/M arrest resulting in cell death. Collectively, this data suggests a pivotal function of TRPM2 in the DNA damage response of T cell leukemia cells. Apoptosis-resistant Bcl-2-overexpressing cells even can afford higher TRPM2 activity without risking a hazardous Ca2+-overload-induced mitochondrial superoxide anion formation.
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UCP-3 uncoupling protein confers hypoxia resistance to renal epithelial cells and is upregulated in renal cell carcinoma. Sci Rep 2015; 5:13450. [PMID: 26304588 PMCID: PMC4548255 DOI: 10.1038/srep13450] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 07/01/2015] [Indexed: 01/17/2023] Open
Abstract
Tumor cells can adapt to a hostile environment with reduced oxygen supply. The present study aimed to identify mechanisms that confer hypoxia resistance. Partially hypoxia/reoxygenation (H/R)-resistant proximal tubular (PT) cells were selected by exposing PT cultures to repetitive cycles of H/R. Thereafter, H/R-induced changes in mRNA and protein expression, inner mitochondrial membrane potential (ΔΨm), formation of superoxide, and cell death were compared between H/R-adapted and control PT cultures. As a result, H/R-adapted PT cells exhibited lower H/R-induced hyperpolarization of ΔΨm and produced less superoxide than the control cultures. Consequently, H/R triggered ΔΨm break-down and DNA degradation in a lower percentage of H/R-adapted than control PT cells. Moreover, H/R induced upregulation of mitochondrial uncoupling protein-3 (UCP-3) in H/R-adapted PT but not in control cultures. In addition, ionizing radiation killed a lower percentage of H/R-adapted as compared to control cells suggestive of an H/R-radiation cross-resistance developed by the selection procedure. Knockdown of UCP-3 decreased H/R- and radioresitance of the H/R-adapted cells. Finally, UCP-3 protein abundance of PT-derived clear cell renal cell carcinoma and normal renal tissue was compared in human specimens indicating upregulation of UCP-3 during tumor development. Combined, our data suggest functional significance of UCP-3 for H/R resistance.
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Falcão PL, Motta BM, de Lima FC, Lima CV, Campos TPR. Enhancement of viability of radiosensitive (PBMC) and resistant (MDA-MB-231) clones in low-dose-rate cobalt-60 radiation therapy. Radiol Bras 2015; 48:158-65. [PMID: 26185342 PMCID: PMC4492568 DOI: 10.1590/0100-3984.2014.0022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 11/10/2014] [Indexed: 12/01/2022] Open
Abstract
Objective In the present study, the authors investigated the in vitro
behavior of radio-resistant breast adenocarcinoma (MDA-MB-231) cells line and
radiosensitive peripheral blood mononuclear cells (PBMC), as a function of
different radiation doses, dose rates and postirradiation time kinetics, with a
view to the interest of clinical radiotherapy. Materials and Methods The cells were irradiated with Co-60, at 2 and 10 Gy and two different exposure
rates, 339.56 cGy.min–1 and the other corresponding to one fourth of
the standard dose rates, present over a 10-year period of cobalt therapy.
Post-irradiation sampling was performed at pre-established kinetics of 24, 48 and
72 hours. The optical density response in viability assay was evaluated and a
morphological analysis was performed. Results Radiosensitive PBMC showed decrease in viability at 2 Gy, and a more significant
decrease at 10 Gy for both dose rates. MDAMB- 231 cells presented viability
decrease only at higher dose and dose rate. The results showed MDA-MB-231 clone
expansion at low dose rate after 48–72 hours post-radiation. Conclusion Low dose rate shows a possible potential clinical impact involving decrease in
management of radio-resistant and radiosensitive tumor cell lines in cobalt
therapy for breast cancer.
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Affiliation(s)
- Patrícia Lima Falcão
- Postdoc, Associate Professor at Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | | | - Fernanda Castro de Lima
- Fellow Master degree in Veterinary Medicine, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Celso Vieira Lima
- Master, Fellow PhD degree in Nuclear Sciences and Techniques, School of Engineering, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
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Stegen B, Butz L, Klumpp L, Zips D, Dittmann K, Ruth P, Huber SM. Ca2+-Activated IK K+ Channel Blockade Radiosensitizes Glioblastoma Cells. Mol Cancer Res 2015; 13:1283-95. [PMID: 26041939 DOI: 10.1158/1541-7786.mcr-15-0075] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 05/22/2015] [Indexed: 11/16/2022]
Abstract
UNLABELLED Ca(2+)-activated K(+) channels, such as BK and IK channels, have been proposed to fulfill pivotal functions in neoplastic transformation, malignant progression, and brain infiltration of glioblastoma cells. Here, the ionizing radiation (IR) effect of IK K(+) channel targeting was tested in human glioblastoma cells. IK channels were inhibited pharmacologically by TRAM-34 or genetically by knockdown, cells were irradiated with 6 MV photons and IK channel activity, Ca(2+) signaling, cell cycling, residual double-strand breaks, and clonogenic survival were determined. In addition, the radiosensitizing effect of TRAM-34 was analyzed in vivo in ectopic tumors. Moreover, The Cancer Genome Atlas (TCGA) was queried to expose the dependence of IK mRNA abundance on overall survival (OS) of patients with glioma. Results indicate that radiation increased the activity of IK channels, modified Ca(2+) signaling, and induced a G2-M cell-cycle arrest. TRAM-34 decreased the IR-induced accumulation in G2-M arrest and increased the number of γH2AX foci post-IR, suggesting that TRAM-34 mediated an increase of residual DNA double-strand breaks. Mechanistically, IK knockdown abolished the TRAM-34 effects indicating the IK specificity of TRAM-34. Finally, TRAM-34 radiosensitized ectopic glioblastoma in vivo and high IK mRNA abundance associated with shorter patient OS in low-grade glioma and glioblastoma. IMPLICATIONS Together, these data support a cell-cycle regulatory function for IK K(+) channels, and combined therapy using IK channel targeting and radiation is a new strategy for anti-glioblastoma therapy.
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Affiliation(s)
- Benjamin Stegen
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Lena Butz
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany. Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Lukas Klumpp
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany. Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart, Germany
| | - Daniel Zips
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Klaus Dittmann
- Division of Radiobiology and Molecular Environmental Research, Department of Radiation Oncology, University of Tübingen, Tübingen, Germany
| | - Peter Ruth
- Department of Pharmacology, Toxicology and Clinical Pharmacy, Institute of Pharmacy, University of Tübingen, Tübingen, Germany
| | - Stephan M Huber
- Department of Radiation Oncology, University of Tübingen, Tübingen, Germany.
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Kim YT, Jo SS, Park YJ, Lee MZ, Suh CK. Distinct Cellular Calcium Metabolism in Radiation-sensitive RKO Human Colorectal Cancer Cells. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2014; 18:509-16. [PMID: 25598666 PMCID: PMC4296041 DOI: 10.4196/kjpp.2014.18.6.509] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 10/13/2014] [Accepted: 10/13/2014] [Indexed: 12/13/2022]
Abstract
Radiation therapy for variety of human solid tumors utilizes mechanism of cell death after DNA damage caused by radiation. In response to DNA damage, cytochrome c was released from mitochondria by activation of pro-apoptotic Bcl-2 family proteins, and then elicits massive Ca(2+) release from the ER that lead to cell death. It was also suggested that irradiation may cause the deregulation of Ca(2+) homeostasis and trigger programmed cell death and regulate death specific enzymes. Thus, in this study, we investigated how cellular Ca(2+) metabolism in RKO cells, in comparison to radiation-resistant A549 cells, was altered by gamma (γ)-irradiation. In irradiated RKO cells, Ca(2+) influx via activation of NCX reverse mode was enhanced and a decline of [Ca(2+)]i via forward mode was accelerated. The amount of Ca(2+) released from the ER in RKO cells by the activation of IP3 receptor was also enhanced by irradiation. An increase in [Ca(2+)]i via SOCI was enhanced in irradiated RKO cells, while that in A549 cells was depressed. These results suggest that γ-irradiation elicits enhancement of cellular Ca(2+) metabolism in radiation-sensitive RKO cells yielding programmed cell death.
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Affiliation(s)
- Yun Tai Kim
- Department of Physiology and Biophysics, Inha University College of Medicine, Incheon 401-751, Korea. ; Research Group of Food Functionality, Korea Food Research Institute, Seongnam 463-746, Division of Food Biotechnology, Korea University of Science and Technology, Daejeon 305-350, Korea
| | - Soo Shin Jo
- Department of Physiology and Biophysics, Inha University College of Medicine, Incheon 401-751, Korea
| | - Young Jun Park
- Department of Physiology and Biophysics, Inha University College of Medicine, Incheon 401-751, Korea
| | - Myung Za Lee
- Department of Radiation Oncology, Hanyang University College of Medicine, Seoul 133-791, Korea
| | - Chang Kook Suh
- Department of Physiology and Biophysics, Inha University College of Medicine, Incheon 401-751, Korea
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Trautmann F, Cojoc M, Kurth I, Melin N, Bouchez LC, Dubrovska A, Peitzsch C. CXCR4 as biomarker for radioresistant cancer stem cells. Int J Radiat Biol 2014; 90:687-99. [PMID: 24650104 DOI: 10.3109/09553002.2014.906766] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE Radioresistance of cancer cells remains a fundamental barrier for maximum efficient radiotherapy. Tumor heterogeneity and the existence of distinct cell subpopulations exhibiting different genotypes and biological behaviors raise difficulties to eradicate all tumorigenic cells. Recent evidence indicates that a distinct population of tumor cells, called cancer stem cells (CSC), is involved in tumor initiation and recurrence and is a putative cause of tumor radioresistance. There is an urgent need to identify the intrinsic molecular mechanisms regulating the generation and maintenance of resistance to radiotherapy, especially within the CSC subset. The chemokine C-X-C motif receptor 4 (CXCR4) has been found to be a prognostic marker in various types of cancer, being involved in chemotaxis, stemness and drug resistance. The interaction of CXCR4 with its ligand, the chemokine C-X-C motif ligand 12 (CXCL12), plays an important role in modulating the tumor microenvironment, angiogenesis and CSC niche. Moreover, the therapeutic inhibition of the CXCR4/CXCL12 signaling pathway is sensitizing the malignant cells to conventional anti-cancer therapy. CONTENT Within this review we are summarizing the role of the CXCR4/CXCL12 axis in the modulation of CSC properties, the regulation of the tumor microenvironment in response to irradiation, therapy resistance and tumor relapse. CONCLUSION In light of recent findings, the inhibition of the CXCR4/CXCL12 signaling pathway is a promising therapeutic option to refine radiotherapy.
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Affiliation(s)
- Franziska Trautmann
- OncoRay - National Center for Radiation Research in Oncology, Medizinische Fakultät Carl Gustav Carus der Technischen Universität and Helmholtz Zentrum Rossendorf , Dresden
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Becchetti A, Munaron L, Arcangeli A. The role of ion channels and transporters in cell proliferation and cancer. Front Physiol 2013; 4:312. [PMID: 24194722 PMCID: PMC3810589 DOI: 10.3389/fphys.2013.00312] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 10/12/2013] [Indexed: 12/21/2022] Open
Affiliation(s)
- Andrea Becchetti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
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