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Muhsen IN, Zubair AC, Niederwieser T, Hashmi SK. Space exploration and cancer: the risks of deeper space adventures. Leukemia 2024; 38:1872-1875. [PMID: 38969730 DOI: 10.1038/s41375-024-02298-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/06/2024] [Accepted: 05/29/2024] [Indexed: 07/07/2024]
Affiliation(s)
- Ibrahim N Muhsen
- Section of Hematology and Oncology, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Abba C Zubair
- Department of Laboratory Medicine and Pathology, Jacksonville, FL, USA
- Sheikh Shakhbout Medical City-Mayo Clinic Joint Venture, Abu Dhabi, UAE
| | - Tobias Niederwieser
- University of Colorado Boulder, Ann and H.J. Smead Department of Aerospace Engineering Sciences, BioServe Space Technologies, 429 UCB, Boulder, CO, 80309, USA
| | - Shahrukh K Hashmi
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
- Department of Medicine, Sheikh Shakbout Medical City, Abu Dhabi, UAE.
- Medical and Clinical Affairs, Khalifa University, Abu Dhabi, UAE.
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2
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Ghali ENHK, Sandopu SK, Maurya DK, Meriga B. Insights into the radioprotective efficacy of Pterocarpus santalinus L. aqueous extract. Fitoterapia 2024; 176:105986. [PMID: 38703914 DOI: 10.1016/j.fitote.2024.105986] [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: 09/26/2023] [Revised: 03/13/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
In the present study, we have attempted a comprehensive assessment of the possible radioprotective efficacy of Pterocarpus santalinus aqueous extract (PSAE). All the studied models were gamma-irradiated with prior treatment with PSAE. First, the content of total phenols (4.061 μg/mg gallic acid equivalents), flavonoids (6.616 μg/mg quercetin equivalents), and tannins (0.008 mg/L of PSAE) were determined spectrophotometrically. Second, UHPLC-HRMS analysis was performed to identify the possible radioprotectors. Of those, santalins A & B are known for their usage as natural color in foods and alcoholic beverages identified in PSAE. Treatment was well tolerated with no side effects from PSAE. Later, it was shown that radiation-induced lethality significantly amended in PSAE-treated spleen lymphocytes as evidenced by reduced elevated levels of ROS and lipid peroxidation, restored total thiols and GSH: GSSG, inhibited DNA DSBs and cell death. Furthermore, an immunomodulation study was carried out because radiation exposure induces an inflammatory response. Our study shows that PSAE suppressed concanavalin A-induced T-cell proliferation as evidenced by CFSE dye dilution and CD69 antibody staining methods. Taken together, the current study explored the protective efficacy of PSAE from gamma radiation-inflicted injuries and hence we recommend PSAE as a potent radioprotective formulation.
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Affiliation(s)
- E N Hanuma Kumar Ghali
- Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, India; Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Medicine and Oncology ISU, South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen 78504, TX, USA
| | | | - Dharmendra Kumar Maurya
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - Balaji Meriga
- Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, India.
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3
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Jose SR, Timothy PB, Suganthy J, Backianathan S, Amirtham SM, Rani S, Singh R. Determination of dose-response calibration curves for gamma radiation using gamma-H2AX immunofluorescence based biodosimetry. Rep Pract Oncol Radiother 2024; 29:164-175. [PMID: 39143968 PMCID: PMC11321778 DOI: 10.5603/rpor.99678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 02/29/2024] [Indexed: 08/16/2024] Open
Abstract
Background Gamma-H2AX immunofluorescence assay has gained popularity as a DNA double strand break marker. In this work, we have investigated the potential use of gamma H2AX immunofluorescence assay as a biological dosimeter for estimation of dose in our institution. Materials and methods Seven healthy individuals were selected for the study and the blood samples collected from the first five individuals were irradiated to low doses (0-10 cGy) and high doses (50-500 cGy) in a telecobalt unit. All the samples were processed for gamma-H2AX immunofluorescence assay and the dose-response calibration curves for low and high doses were determined. In order to validate the determined dose-response calibration curves, the blood samples obtained from the sixth and seventh subjects were delivered a test dose of 7.5 cGy and 250 cGy. In addition, time and cost required to complete the assay were also reported. Results The goodness of fit (R2) values was found to be 0.9829 and 0.9766 for low and high dose-response calibration curves. The time required to perform the gamma-H2AX immunofluorescence assay was found to be 7 hours and 30 minutes and the estimated cost per sample was 5000 rupees (~ 60 USD). Conclusion Based on this study we conclude that the individual dose-response calibration curves determined with gamma-H2AX immunofluorescence assay for both low and high dose ranges of gamma radiation can be used for biological dosimetry. Further, the gamma-H2AX immunofluorescence assay can be used as a rapid cost-effective biodosimetric tool for institutions with an existing confocal microscope facility.
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Affiliation(s)
- Solomon Raj Jose
- Department of Radiotherapy, Christian Medical College Vellore, Vellore, India
| | | | - J Suganthy
- Department of Anatomy, Christian Medical College Vellore, CMC, Bagayam, Vellore, India
| | | | | | - Sandya Rani
- Centre for Stem Cell Research, Christian Medical College, Vellore, India
| | - Rabi Singh
- Department of Radiation Oncology, Christian Medical College Vellore, Vellore, India
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4
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Tura A, Zhu Y, Vardanyan S, Prasuhn M, Kakkassery V, Lüke J, Merz H, Paulsen F, Rades D, Cremers F, Bartz-Schmidt KU, Grisanti S. Radiation-Induced DNA Damage in Uveal Melanoma Is Influenced by Dose Delivery and Chromosome 3 Status. Invest Ophthalmol Vis Sci 2024; 65:7. [PMID: 38833258 PMCID: PMC11156202 DOI: 10.1167/iovs.65.6.7] [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: 06/16/2023] [Accepted: 03/15/2024] [Indexed: 06/06/2024] Open
Abstract
Purpose The purpose of this study was to analyze the extent of DNA breaks in primary uveal melanoma (UM) with regard to radiotherapy dose delivery (single-dose versus fractionated) and monosomy 3 status. Methods A total of 54 patients with UM were included. Stereotactic radiotherapy (SRT) was performed in 23 patients, with 8 undergoing single-dose SRT (sdSRT) treatment and 15 receiving fractionated SRT (fSRT). DNA breaks in the enucleated or endoresected tumors were visualized by a TUNEL assay and quantified by measuring the TUNEL-positive area. Protein expression was analyzed by immunohistochemistry. Co-detection of chromosome 3 with proteins was performed by immuno-fluorescent in situ hybridization. Results The amount of DNA breaks in the total irradiated group was increased by 2.7-fold (P < 0.001) compared to non-irradiated tissue. Tumors treated with fSRT were affected more severely, showing 2.1-fold more DNA damage (P = 0.007) compared to the cases after single (high) dose irradiation (sdSRT). Monosomy 3 tumors showed less DNA breaks compared to disomy 3 samples (P = 0.004). The presence of metastases after radiotherapy correlated with monosomy 3 and less DNA breaks compared to patients with non-metastatic cancer in the combined group with fSRT and sdSRT (P < 0.05). Conclusions Fractionated irradiation led to more DNA damage than single-dose treatment in primary UM. As tumors with monosomy 3 showed less DNA breaks than those with disomy 3, this may indicate that they are less radiosensitive, which may influence the efficacy of irradiation.
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Affiliation(s)
- Aysegül Tura
- Department of Ophthalmology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
| | - Yingda Zhu
- Department of Ophthalmology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
- Department of Ophthalmology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Siranush Vardanyan
- Department of Ophthalmology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
| | - Michelle Prasuhn
- Department of Ophthalmology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
| | - Vinodh Kakkassery
- Department of Ophthalmology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
| | - Julia Lüke
- Department of Ophthalmology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
| | - Hartmut Merz
- Reference Center for Lymph Node Pathology and Hematopathology, Lübeck, Germany
| | - Frank Paulsen
- Department of Radiation Oncology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Dirk Rades
- Department of Radiation Oncology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
| | - Florian Cremers
- Department of Radiation Oncology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
| | | | - Salvatore Grisanti
- Department of Ophthalmology, University Clinic Schleswig-Holstein (UKSH), University of Lübeck, Lübeck, Germany
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5
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Porrazzo A, Cassandri M, D'Alessandro A, Morciano P, Rota R, Marampon F, Cenci G. DNA repair in tumor radioresistance: insights from fruit flies genetics. Cell Oncol (Dordr) 2024; 47:717-732. [PMID: 38095764 DOI: 10.1007/s13402-023-00906-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2023] [Indexed: 07/04/2024] Open
Abstract
BACKGROUND Radiation therapy (RT) is a key anti-cancer treatment that involves using ionizing radiation to kill tumor cells. However, this therapy can lead to short- and long-term adverse effects due to radiation exposure of surrounding normal tissue. The type of DNA damage inflicted by radiation therapy determines its effectiveness. High levels of genotoxic damage can lead to cell cycle arrest, senescence, and cell death, but many tumors can cope with this damage by activating protective mechanisms. Intrinsic and acquired radioresistance are major causes of tumor recurrence, and understanding these mechanisms is crucial for cancer therapy. The mechanisms behind radioresistance involve processes like hypoxia response, cell proliferation, DNA repair, apoptosis inhibition, and autophagy. CONCLUSION Here we briefly review the role of genetic and epigenetic factors involved in the modulation of DNA repair and DNA damage response that promote radioresistance. In addition, leveraging our recent results on the effects of low dose rate (LDR) of ionizing radiation on Drosophila melanogaster we discuss how this model organism can be instrumental in the identification of conserved factors involved in the tumor resistance to RT.
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Affiliation(s)
- Antonella Porrazzo
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, 00146, Rome, Italy
- Department of Radiological, Oncological and Anatomo-Pathological Sciences, Sapienza University of Rome, Policlinico Umberto I, 00161, Rome, Italy
| | - Matteo Cassandri
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, 00146, Rome, Italy
- Department of Radiological, Oncological and Anatomo-Pathological Sciences, Sapienza University of Rome, Policlinico Umberto I, 00161, Rome, Italy
| | - Andrea D'Alessandro
- Department of Biology and Biotechnologies "C. Darwin", Sapienza University of Rome, 00185, Rome, Italy
- Istituto Pasteur Italia-Fondazione Cenci Bolognetti, 00161, Rome, Italy
| | - Patrizia Morciano
- Dipartimento di Medicina Clinica, Sanità Pubblica, Scienze della Vita e dell'Ambiente, Università Degli Studi dell'Aquila, 67100, L'Aquila, Italy
- Laboratori Nazionali del Gran Sasso (LNGS), INFN, Assergi, 67100, L'Aquila, Italy
| | - Rossella Rota
- Department of Hematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, 00146, Rome, Italy
| | - Francesco Marampon
- Department of Radiological, Oncological and Anatomo-Pathological Sciences, Sapienza University of Rome, Policlinico Umberto I, 00161, Rome, Italy
| | - Giovanni Cenci
- Department of Biology and Biotechnologies "C. Darwin", Sapienza University of Rome, 00185, Rome, Italy.
- Istituto Pasteur Italia-Fondazione Cenci Bolognetti, 00161, Rome, Italy.
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Walker FM, Sobral LM, Danis E, Sanford B, Donthula S, Balakrishnan I, Wang D, Pierce A, Karam SD, Kargar S, Serkova NJ, Foreman NK, Venkataraman S, Dowell R, Vibhakar R, Dahl NA. Rapid P-TEFb-dependent transcriptional reorganization underpins the glioma adaptive response to radiotherapy. Nat Commun 2024; 15:4616. [PMID: 38816355 PMCID: PMC11139976 DOI: 10.1038/s41467-024-48214-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/23/2024] [Indexed: 06/01/2024] Open
Abstract
Dynamic regulation of gene expression is fundamental for cellular adaptation to exogenous stressors. P-TEFb-mediated pause-release of RNA polymerase II (Pol II) is a conserved regulatory mechanism for synchronous transcriptional induction in response to heat shock, but this pro-survival role has not been examined in the applied context of cancer therapy. Using model systems of pediatric high-grade glioma, we show that rapid genome-wide reorganization of active chromatin facilitates P-TEFb-mediated nascent transcriptional induction within hours of exposure to therapeutic ionizing radiation. Concurrent inhibition of P-TEFb disrupts this chromatin reorganization and blunts transcriptional induction, abrogating key adaptive programs such as DNA damage repair and cell cycle regulation. This combination demonstrates a potent, synergistic therapeutic potential agnostic of glioma subtype, leading to a marked induction of tumor cell apoptosis and prolongation of xenograft survival. These studies reveal a central role for P-TEFb underpinning the early adaptive response to radiotherapy, opening avenues for combinatorial treatment in these lethal malignancies.
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Affiliation(s)
- Faye M Walker
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Lays Martin Sobral
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Etienne Danis
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, USA
- University of Colorado Cancer Center, University of Colorado School of Medicine, Aurora, CO, USA
| | - Bridget Sanford
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Sahiti Donthula
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Ilango Balakrishnan
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Dong Wang
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Angela Pierce
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Soudabeh Kargar
- University of Colorado Cancer Center, University of Colorado School of Medicine, Aurora, CO, USA
| | - Natalie J Serkova
- Department of Radiology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Nicholas K Foreman
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
- Center for Cancer and Blood Disorders, Children's Hospital Colorado, Aurora, CO, USA
- Department of Neurosurgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Sujatha Venkataraman
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Robin Dowell
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO, USA
- BioFrontiers Institute, University of Colorado, Boulder, CO, USA
| | - Rajeev Vibhakar
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
- Center for Cancer and Blood Disorders, Children's Hospital Colorado, Aurora, CO, USA
- Department of Neurosurgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Nathan A Dahl
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA.
- Center for Cancer and Blood Disorders, Children's Hospital Colorado, Aurora, CO, USA.
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7
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Sun M, Moquet J, Barnard S, Mancey H, Burling D, Baldwin-Cleland R, Monahan K, Latchford A, Lloyd D, Bouffler S, Badie C, Anyamene NA, Ainsbury E. In vitro study of radiosensitivity in colorectal cancer cell lines associated with Lynch syndrome. Front Public Health 2024; 12:1369201. [PMID: 38638480 PMCID: PMC11024246 DOI: 10.3389/fpubh.2024.1369201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/18/2024] [Indexed: 04/20/2024] Open
Abstract
Introduction Lynch syndrome patients have an inherited predisposition to cancer due to a deficiency in DNA mismatch repair (MMR) genes which could lead to a higher risk of developing cancer if exposed to ionizing radiation. This pilot study aims to reveal the association between MMR deficiency and radiosensitivity at both a CT relevant low dose (20 mGy) and a therapeutic higher dose (2 Gy). Methods Human colorectal cancer cell lines with (dMMR) or without MMR deficiency (pMMR) were analyzed before and after exposure to radiation using cellular and cytogenetic analyses i.e., clonogenic assay to determine cell reproductive death; sister chromatid exchange (SCE) assay to detect the exchange of DNA between sister chromatids; γH2AX assay to analyze DNA damage repair; and apoptosis analysis to compare cell death response. The advantages and limitations of these assays were assessed in vitro, and their applicability and feasibility investigated for their potential to be used for further studies using clinical samples. Results Results from the clonogenic assay indicated that the pMMR cell line (HT29) was significantly more radio-resistant than the dMMR cell lines (HCT116, SW48, and LoVo) after 2 Gy X-irradiation. Both cell type and radiation dose had a significant effect on the yield of SCEs/chromosome. When the yield of SCEs/chromosome for the irradiated samples (2 Gy) was normalized against the controls, no significant difference was observed between the cell lines. For the γH2AX assay, 0, 20 mGy and 2 Gy were examined at post-exposure time points of 30 min (min), 4 and 24 h (h). Statistical analysis revealed that HT29 was only significantly more radio-resistant than the MLH1-deficient cells lines, but not the MSH2-deficient cell line. Apoptosis analysis (4 Gy) revealed that HT29 was significantly more radio-resistant than HCT116 albeit with very few apoptotic cells observed. Discussion Overall, this study showed radio-resistance of the MMR proficient cell line in some assays, but not in the others. All methods used within this study have been validated; however, due to the limitations associated with cancer cell lines, the next step will be to use these assays in clinical samples in an effort to understand the biological and mechanistic effects of radiation in Lynch patients as well as the health implications.
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Affiliation(s)
- Mingzhu Sun
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Jayne Moquet
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Stephen Barnard
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Hannah Mancey
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - David Burling
- Intestinal Imaging Centre, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - Rachel Baldwin-Cleland
- Intestinal Imaging Centre, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - Kevin Monahan
- Lynch Syndrome Clinic, Centre for Familial Intestinal Cancer, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - Andrew Latchford
- Lynch Syndrome Clinic, Centre for Familial Intestinal Cancer, St Mark's Hospital, London North West University Healthcare National Health Service Trust, Harrow, United Kingdom
| | - David Lloyd
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Simon Bouffler
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Christophe Badie
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
| | - Nicola A. Anyamene
- East and North Hertfordshire National Health Service Trust, Mount Vernon Cancer Centre, Northwood, United Kingdom
| | - Elizabeth Ainsbury
- United Kingdom Health Security Agency, Department of Radiation Effects, Cytogenetics and Pathology Group, Radiation, Chemical and Environmental Hazards Directorate, Didcot, United Kingdom
- Environmental Research Group Within the School of Public Health, Faculty of Medicine at Imperial College of Science, Technology and Medicine, London, United Kingdom
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8
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Li L, Guo B, Dai L, Liu C, Lin Z. Ebselen and TPI-1, as RecG helicase inhibitors, potently enhance the susceptibility of Pseudomonas aeruginosa to DNA damage agents. Biochem Pharmacol 2024; 222:116051. [PMID: 38354956 DOI: 10.1016/j.bcp.2024.116051] [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: 11/03/2023] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/16/2024]
Abstract
Holliday junction (HJ) is a four-way structured DNA intermediate in processes of homologous recombination and DNA double-stranded break (DSB) repair. In bacteria, HJs are processed via either the RuvABC or RecG-dependent pathways. In addition, RecG also plays a critical role in the reactivation of stalled replication forks, making it an attractive target for antibacterial drug development. Here, we conducted a high-throughput screening targeting the RecG helicase from a common opportunistic pathogen Pseudomonas aeruginosa (Pa). From a library containing 7920 compounds, we identified Ebselen and TPI-1 (2',5'-Dichloro-[1,1'-biphenyl]-2,5-dione) as two potent PaRecG inhibitors, with IC50 values of 0.31 ± 0.02 μM and 1.16 ± 0.06 μM, respectively. Further biochemical analyses suggested that both Ebselen and TPI-1 inhibited the ATPase activity of PaRecG, and hindered its binding to HJ DNA with high selectivity. These compounds, when combined with our previously reported RuvAB inhibitors, resulted in more severe DNA repair defects than the individual treatment, and potently enhanced the susceptibility of P. aeruginosa to the DNA damage agents. This work reports novel small molecule inhibitors of RecG, offering valuable chemical tools for advancing our understanding of RecG's function and mechanism. Additionally, these inhibitors might be further developed as promising antibacterial agents in the fight against P. aeruginosa infections.
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Affiliation(s)
- Longheng Li
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Binbin Guo
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Lin Dai
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Chun Liu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Zhonghui Lin
- College of Chemistry, Fuzhou University, Fuzhou 350108, China.
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9
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Ibragimova M, Kussainova A, Aripova A, Bersimbaev R, Bulgakova O. The Molecular Mechanisms in Senescent Cells Induced by Natural Aging and Ionizing Radiation. Cells 2024; 13:550. [PMID: 38534394 DOI: 10.3390/cells13060550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 03/28/2024] Open
Abstract
This review discusses the relationship between cellular senescence and radiation exposure. Given the wide range of ionizing radiation sources encountered by people in professional and medical spheres, as well as the influence of natural background radiation, the question of the effect of radiation on biological processes, particularly on aging processes, remains highly relevant. The parallel relationship between natural and radiation-induced cellular senescence reveals the common aspects underlying these processes. Based on recent scientific data, the key points of the effects of ionizing radiation on cellular processes associated with aging, such as genome instability, mitochondrial dysfunction, altered expression of miRNAs, epigenetic profile, and manifestation of the senescence-associated secretory phenotype (SASP), are discussed. Unraveling the molecular mechanisms of cellular senescence can make a valuable contribution to the understanding of the molecular genetic basis of age-associated diseases in the context of environmental exposure.
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Affiliation(s)
- Milana Ibragimova
- Department of General Biology and Genomics, Institute of Cell Biology and Biotechnology, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Assiya Kussainova
- Department of General Biology and Genomics, Institute of Cell Biology and Biotechnology, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
- Department of Health Sciences, University of Genova, Via Pastore 1, 16132 Genoa, Italy
| | - Akmaral Aripova
- Department of General Biology and Genomics, Institute of Cell Biology and Biotechnology, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Rakhmetkazhi Bersimbaev
- Department of General Biology and Genomics, Institute of Cell Biology and Biotechnology, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Olga Bulgakova
- Department of General Biology and Genomics, Institute of Cell Biology and Biotechnology, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
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10
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Cui Y, He Z, Chen T, Ren X, Xu J, Zhang S, Peng T, Liu S, Wang L. Design, synthesis, biological evaluation and in silico studies of novel quinoline derivatives as potential radioprotective molecules targeting the TLR2 and p53 pathways. Eur J Med Chem 2024; 268:116239. [PMID: 38377827 DOI: 10.1016/j.ejmech.2024.116239] [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: 11/12/2023] [Revised: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 02/22/2024]
Abstract
Ionizing radiation in space, radiation devices or nuclear disasters are major threats to human health and public security. In this paper, in order to find the potential novel compounds decreasing the radiation-induced damage by targeting p53 apoptosis pathway and TLR2 passway, a series of novel quinoline derivatives were designed, synthesized, and evaluated their biological activities. Most of the synthesized compounds showed significant radioprotective effects in vitro, and the compound 5 has the best performance. Therefore, we verified its radioprotective activity in vivo and investigated the mechanism of its excellent activity. The results in vivo indicated that compound 5 not only markedly enhanced the survival rate (80 %) of mice 30 days after lethal exposure to irradiation, but also significantly reduced the radiation-induced damage to haematopoietic system and intestinal tissue of mice. The mechanistic studies indicated that compound 5 acted on the p53 pathway to reduce radiation-induced cell apoptosis and at the same time stimulated TLR2 to up-regulate the expressions of radiation protection factors. Molecular dynamics study shows that compound 5 would effectively bind to the TLR2 protein and further revealed the binding mechanism. Taken together, all the findings of our study demonstrate the quinoline derivative 5 is a potent radioprotective compound, which holds a great therapeutic potential for further development.
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Affiliation(s)
- Yaowen Cui
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Zhaolun He
- Beijing Institute of Radiation Medicine, Beijing, 100850, PR China
| | - Tingting Chen
- Beijing Institute of Radiation Medicine, Beijing, 100850, PR China
| | - Xinjian Ren
- Beijing Institute of Radiation Medicine, Beijing, 100850, PR China
| | - Jing Xu
- Beijing Institute of Radiation Medicine, Beijing, 100850, PR China
| | - Shouguo Zhang
- Beijing Institute of Radiation Medicine, Beijing, 100850, PR China.
| | - Tao Peng
- Beijing Institute of Radiation Medicine, Beijing, 100850, PR China.
| | - Shuchen Liu
- Beijing Institute of Radiation Medicine, Beijing, 100850, PR China.
| | - Lin Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China; Beijing Institute of Radiation Medicine, Beijing, 100850, PR China.
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Feng Y, An Q, Zhao Z, Wu M, Yang C, Liang W, Xu X, Jiang T, Zhang G. Beta-elemene: A phytochemical with promise as a drug candidate for tumor therapy and adjuvant tumor therapy. Biomed Pharmacother 2024; 172:116266. [PMID: 38350368 DOI: 10.1016/j.biopha.2024.116266] [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: 11/22/2023] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND β-Elemene (IUPAC name: (1 S,2 S,4 R)-1-ethenyl-1-methyl-2,4-bis(prop-1-en-2-yl) cyclohexane), is a natural compound found in turmeric root. Studies have demonstrated its diverse biological functions, including its anti-tumor properties, which have been extensively investigated. However, these have not yet been reviewed. The aim of this review was to provide a comprehensive summary of β-elemene research, with respect to disease treatment. METHODS β-Elemene-related articles were found in PubMed, ScienceDirect, and Google Scholar databases to systematically summarize its structure, pharmacokinetics, metabolism, and pharmacological activity. We also searched the Traditional Chinese Medicine System Pharmacology database for therapeutic targets of β-elemene. We further combined these targets with the relevant literature for KEGG and GO analyses. RESULTS Studies on the molecular mechanisms underlying β-elemene activity indicate that it regulates multiple pathways, including STAT3, MAPKs, Cyclin-dependent kinase 1/cyclin B, Notch, PI3K/AKT, reactive oxygen species, METTL3, PTEN, p53, FAK, MMP, TGF-β/Smad signaling. Through these molecular pathways, β-elemene has been implicated in tumor cell proliferation, apoptosis, migration, and invasion and improving the immune microenvironment. Additionally, β-elemene increases chemotherapeutic drug sensitivity and reverses resistance by inhibiting DNA damage repair and regulating pathways including CTR1, pak1, ERK1/2, ABC transporter protein, Prx-1 and ERCC-1. Nonetheless, owing to its lipophilicity and low bioavailability, additional structural modifications could improve the efficacy of this drug. CONCLUSION β-Elemene exhibits low toxicity with good safety, inhibiting various tumor types via diverse mechanisms in vivo and in vitro. When combined with chemotherapeutic drugs, it enhances efficacy, reduces toxicity, and improves tumor killing. Thus, β-elemene has vast potential for research and development.
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Affiliation(s)
- Yewen Feng
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China
| | - Qingwen An
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China
| | - Zhengqi Zhao
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China
| | - Mengting Wu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China
| | - Chuqi Yang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China
| | - WeiYu Liang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China
| | - Xuefei Xu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China
| | - Tao Jiang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China.
| | - Guangji Zhang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Zhejiang 310053, China; Key Laboratory of Blood-stasis-toxin Syndrome of Zhejiang Province, Zhejiang 310053, China; Traditional Chinese Medicine "Preventing Disease" Wisdom Health Project Research Center of Zhejiang, Zhejiang 310053, China.
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12
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Shaheer K, Prabhu BS, Ali HS, Lakshmanan-M D. Breast cancer cells are sensitized by piperine to radiotherapy through estrogen receptor-α mediated modulation of a key NHEJ repair protein- DNA-PK. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155126. [PMID: 37913642 DOI: 10.1016/j.phymed.2023.155126] [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: 05/04/2023] [Revised: 08/03/2023] [Accepted: 09/27/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Non-homologous end joining, an important DNA-double-stranded break repair pathway, plays a prominent role in conferring resistance to radiotherapeutic agents, resulting in cancer progression and relapse. PURPOSE The molecular players involved in the radio-sensitizing effects of piperine and many other phytocompounds remain evasive to a great extent. The study is designed to assess if piperine, a plant alkaloid can alter the radioresistance by modulating the expression of non-homologous end-joining machinery. METHODS AND MATERIALS Estrogen receptor-positive/negative, breast cancer cells were cultured to understand the synergetic effects of piperine with radiotherapy. Cisplatin and Bazedoxifene were used as positive controls. Cells were exposed to γ- radiation using Low Dose gamma Irradiator-2000. The piperine effect on Estrogen receptor modulation, DNA-Damage, DNA-Damage-Response, and apoptosis was done by western blotting, immunofluorescence, yeast-based-estrogen-receptor-LacZ-reporter assay, and nuclear translocation analysis. Micronuclei assay was done for DNA damage and genotoxicity, and DSBs were quantified by γH2AX-foci-staining using confocal microscopy. Flow cytometry analysis was done to determine the cell cycle, mitochondrial membrane depolarization, and Reactive oxygen species generation. Pharmacophore analysis and protein-ligand interaction studies were done using Schrodinger software. Synergy was computed by compusyn-statistical analysis. Standard errors/deviation/significance were computed with GraphPad prism. RESULTS Using piperine, we propose a new strategy for overcoming acquired radioresistance through estrogen receptor-mediated modulation of the NHEJ pathway. This is the first comprehensive study elucidating the mechanism of radio sensitizing potential of piperine. Piperine enhanced the radiation-induced cell death and enhanced the expression and activation of Estrogen receptor β, while Estrogen receptor α expression and activation were reduced. In addition, piperine shares common pharmacophore features with most of the known estrogen agonists and antagonists. It altered the estrogen receptor α/β ratio and the expression of estrogen-responsive proteins of DDR and NHEJ pathway. Enhanced expression of DDR proteins, ATM, p53, and P-p53 with low DNA-PK repair complex (comprising of DNA-PKcs/Ku70/Ku80), resulted in the accumulation of radiation-induced DNA double-stranded breaks (as evidenced by MNi and γH2AX-foci) culminating in cell cycle arrest and mitochondrial-pathway of apoptosis. CONCLUSION In conclusion, our study for the first time reported that piperine sensitizes breast cancer cells to radiation by accumulating DNA breaks, through altering the expression of DNA-PK Complex, and DDR proteins, via selective estrogen receptor modulation, offering a novel strategy for combating radioresistance.
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Affiliation(s)
- Koniyan Shaheer
- Division of Cancer Research and Therapeutics (CaRT), Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka 575018, India
| | - Br Swathi Prabhu
- Division of Cancer Research and Therapeutics (CaRT), Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka 575018, India
| | - H Shabeer Ali
- Department of Biotechnology and Microbiology, Kannur University, Kannur, Kerala, India
| | - Divya Lakshmanan-M
- Division of Cancer Research and Therapeutics (CaRT), Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka 575018, India.
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Law S, Park H, Shany E, Sandhu S, Vallabhaneni M, Meyer D. Expression of human BRCA2 in Saccharomyces cerevisiae complements the loss of RAD52 in double-strand break repair. Curr Genet 2023; 69:301-308. [PMID: 37934232 DOI: 10.1007/s00294-023-01278-y] [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: 10/09/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/08/2023]
Abstract
BRCA2 is a tumor-suppressor gene that is normally expressed in the breast and ovarian tissue of mammals. The BRCA2 protein mediates the repair of double-strand breaks (DSBs) using homologous recombination, which is a conserved pathway in eukaryotes. Women who express missense mutations in the BRCA2 gene are predisposed to an elevated lifetime risk for both breast cancer and ovarian cancer. In the present study, the efficiency of human BRCA2 (hBRCA2) in DSB repair was investigated in the budding yeast Saccharomyces cerevisiae. While budding yeast does not possess a true BRCA2 homolog, they have a potential functional homolog known as Rad52, which is an essential repair protein involved in mediating homologous recombination using the same mechanism as BRCA2 in humans. Therefore, to examine the functional overlap between Rad52 in yeast and hBRCA2, we expressed the wild-type hBRCA2 gene in budding yeast with or without Rad52 and monitored ionizing radiation resistance and DSB repair efficiency. We found that the expression of hBRCA2 in rad52 mutants increases both radiation resistance and DSB repair frequency compared to cells not expressing BRCA2. Specifically, BRCA2 improved the protection against ionizing radiation by at least 1.93-fold and the repair frequency by 6.1-fold. In addition, our results show that homology length influences repair efficiency in rad52 mutant cells, which impacts BRCA2 mediated repair of DSBs. This study provides evidence that S. cerevisiae could be used to monitor BRCA2 function, which can help in understanding the genetic consequences of BRCA2 variants and how they may contribute to cancer progression.
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Affiliation(s)
- Sherrice Law
- College of Medicine, California Northstate University, Elk Grove, CA, 95757, USA
| | - Hannah Park
- College of Medicine, California Northstate University, Elk Grove, CA, 95757, USA
| | - Eyar Shany
- Columbia University, New York, NY, 10027, USA
| | - Sumer Sandhu
- University of Tennessee College of Medicine, Memphis, TN, 38163, USA
| | - Mayukha Vallabhaneni
- College of Health Sciences, California Northstate University, Rancho Cordova, CA, 95670, USA
| | - Damon Meyer
- College of Health Sciences, California Northstate University, Rancho Cordova, CA, 95670, USA.
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14
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Buglewicz DJ, Buglewicz JKF, Hirakawa H, Kato TA, Liu C, Fang Y, Kusumoto T, Fujimori A, Sai S. The impact of DNA double-strand break repair pathways throughout the carbon ion spread-out Bragg peak beam. Cancer Sci 2023; 114:4548-4557. [PMID: 37786999 PMCID: PMC10727999 DOI: 10.1111/cas.15972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/23/2023] [Accepted: 09/06/2023] [Indexed: 10/04/2023] Open
Abstract
Following carbon ion beam irradiation in mammalian cells, such as used in carbon ion radiotherapy (CIRT), it has been suggested that the balance between whether nonhomologous end joining (NHEJ) or homologous recombination (HR) is utilized depends on the DNA double-strand break (DSB) complexity. Here, we quantified DSB distribution and identified the importance of each DSB repair pathway at increasing depths within the carbon ion spread-out Bragg peak (SOBP) beam range. Chinese hamster ovary (CHO) cell lines were irradiated in a single biological system capable of incorporating the full carbon ion SOBP beam range. Cytotoxicity and DSB distribution/repair kinetics were examined at increasing beam depths using cell survival as an endpoint and γ-H2AX as a surrogate marker for DSBs. We observed that proximal SOBP had the highest number of total foci/cell and lowest survival, while distal SOBP had the most dense tracks. Both NHEJ- and HR-deficient CHO cells portrayed an increase in radiosensitivity throughout the full carbon beam range, although NHEJ-deficient cells were the most radiosensitive cell line from beam entrance up to proximal SOBP and demonstrated a dose-dependent decrease in ability to repair DSBs. In contrast, HR-deficient cells had the greatest ratio of survival fraction at entrance depth to the lowest survival fraction within the SOBP and demonstrated a linear energy transfer (LET)-dependent decrease in ability to repair DSBs. Collectively, our results provide insight into treatment planning and potential targets to inhibit, as HR was a more beneficial pathway to inhibit than NHEJ to enhance the cell killing effect of CIRT in targeted tumor cells within the SOBP while maintaining limited unwanted damage to surrounding healthy cells.
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Affiliation(s)
- Dylan J. Buglewicz
- Department of Charged Particle Therapy ResearchInstitute of Quantum Medical Science, National Institutes of Quantum Science and Technology (QST)ChibaJapan
| | | | - Hirokazu Hirakawa
- Department of Charged Particle Therapy ResearchInstitute of Quantum Medical Science, National Institutes of Quantum Science and Technology (QST)ChibaJapan
| | - Takamitsu A. Kato
- Department of Environmental & Radiological Health SciencesColorado State UniversityFort CollinsCOUSA
| | - Cuihua Liu
- Department of Charged Particle Therapy ResearchInstitute of Quantum Medical Science, National Institutes of Quantum Science and Technology (QST)ChibaJapan
| | - YaQun Fang
- Department of Charged Particle Therapy ResearchInstitute of Quantum Medical Science, National Institutes of Quantum Science and Technology (QST)ChibaJapan
| | - Tamon Kusumoto
- Department of Radiation Measurement and Dose Assessment, Institute of Radiological SciencesNational Institutes of Quantum Science and Technology (QST)ChibaJapan
| | - Akira Fujimori
- Department of Charged Particle Therapy ResearchInstitute of Quantum Medical Science, National Institutes of Quantum Science and Technology (QST)ChibaJapan
| | - Sei Sai
- Department of Charged Particle Therapy ResearchInstitute of Quantum Medical Science, National Institutes of Quantum Science and Technology (QST)ChibaJapan
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15
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Newman WC, Larsen AG, Bilsky MH. The NOMS approach to metastatic tumors: Integrating new technologies to improve outcomes. Rev Esp Cir Ortop Traumatol (Engl Ed) 2023; 67:487-499. [PMID: 37116749 DOI: 10.1016/j.recot.2023.04.008] [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: 04/06/2023] [Accepted: 04/23/2023] [Indexed: 04/30/2023] Open
Abstract
Treatment paradigms for patients with spine metastases have evolved significantly over the past two decades. The most transformative change to these paradigms has been the integration of spinal stereotactic radiosurgery (sSRS). sSRS allows for the delivery of tumoricidal radiation doses with sparing of nearby organs at risk, particularly the spinal cord. Evidence supports the safety and efficacy of radiosurgery as it currently offers durable local tumor control with low complication rates even for tumors previously considered radioresistant to conventional external beam radiation therapy. The role for surgical intervention remains consistent, but a trend has been observed toward less aggressive, often minimally invasive techniques. Using modern technologies and improved instrumentation, surgical outcomes continue to improve with reduced morbidity. Additionally, targeted agents such as biologics and checkpoint inhibitors have revolutionized cancer care by improving both local control and patient survival. These advances have brought forth a need for new prognostication tools and a more critical review of long-term outcomes. The complex nature of current treatment schemes necessitates a multidisciplinary approach including surgeons, medical oncologists, radiation oncologists, interventionalists and pain specialists. This review recapitulates the current state-of-the-art, evidence-based data on the treatment of spinal metastases and integrates these data into a decision framework, NOMS, which is based on four sentinel pillars of decision making in metastatic spine tumors: Neurological status, Oncologic tumor behavior, Mechanical stability, and Systemic disease burden and medical co-morbidities.
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Affiliation(s)
- W C Newman
- Memorial Sloan Kettering Cancer Center, India
| | - A G Larsen
- Memorial Sloan Kettering Cancer Center, India; Weill Medical College of Cornell University, India
| | - M H Bilsky
- Memorial Sloan Kettering Cancer Center, India; Weill Medical College of Cornell University, India.
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16
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Newman WC, Larsen AG, Bilsky MH. The NOMS approach to metastatic tumors: Integrating new technologies to improve outcomes. Rev Esp Cir Ortop Traumatol (Engl Ed) 2023; 67:S487-S499. [PMID: 37562765 DOI: 10.1016/j.recot.2023.08.013] [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: 04/06/2023] [Accepted: 04/23/2023] [Indexed: 08/12/2023] Open
Abstract
Treatment paradigms for patients with spine metastases have evolved significantly over the past two decades. The most transformative change to these paradigms has been the integration of spinal stereotactic radiosurgery (sSRS). sSRS allows for the delivery of tumoricidal radiation doses with sparing of nearby organs at risk, particularly the spinal cord. Evidence supports the safety and efficacy of radiosurgery as it currently offers durable local tumor control with low complication rates even for tumors previously considered radioresistant to conventional external beam radiation therapy. The role for surgical intervention remains consistent, but a trend has been observed toward less aggressive, often minimally invasive techniques. Using modern technologies and improved instrumentation, surgical outcomes continue to improve with reduced morbidity. Additionally, targeted agents such as biologics and checkpoint inhibitors have revolutionized cancer care by improving both local control and patient survival. These advances have brought forth a need for new prognostication tools and a more critical review of long-term outcomes. The complex nature of current treatment schemes necessitates a multidisciplinary approach including surgeons, medical oncologists, radiation oncologists, interventionalists and pain specialists. This review recapitulates the current state-of-the-art, evidence-based data on the treatment of spinal metastases and integrates these data into a decision framework, NOMS, which is based on four sentinel pillars of decision making in metastatic spine tumors: neurological status, Oocologic tumor behavior, mechanical stability and systemic disease burden and medical co-morbidities.
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Affiliation(s)
- W C Newman
- Memorial Sloan Kettering Cancer Center, Chennai, Tamil Nadu, India
| | - A G Larsen
- Memorial Sloan Kettering Cancer Center, Chennai, Tamil Nadu, India; Weill Medical College of Cornell University, India
| | - M H Bilsky
- Memorial Sloan Kettering Cancer Center, Chennai, Tamil Nadu, India; Weill Medical College of Cornell University, India.
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17
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Chen Y, Meng W, Chen M, Zhang L, Chen M, Chen X, Peng J, Huang N, Zhang W, Chen J. Biotin-decorated hollow gold nanoshells for dual-modal imaging-guided NIR-II photothermal and radiosensitizing therapy toward breast cancer. J Mater Chem B 2023; 11:10003-10018. [PMID: 37843459 DOI: 10.1039/d3tb01736b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Radiotherapy (RT) is dominantly used in breast cancer therapy but is facing fierce side effects because of the limited difference between tumor and normal tissues in response to ionizing radiation. Herein, we construct a core-shell nanoparticle of UiO-66-NH2@AuNS. Then the solid gold shell was etched into hollow AuNS (HAuNS) and further modified with biotin-PEG-SH (PEG-bio) to obtain HAuNS@PEG-bio. HAuNS@PEG-bio demonstrates effective near infrared II (NIR-II) region photothermal therapy (PTT) performance, and the increase of temperature at the tumor site promotes the blood circulation to alleviate the hypoxia in the tumor microenvironment (TME). Meanwhile, HAuNS exhibits strong X-ray absorption and deposition ability due to the high atomic coefficient of elemental Au (Z = 79) and hollowed-out structure. Through the dual radiosensitization of the high atomic coefficient of Au and the hypoxia alleviation from PTT of HAuNS, the breast cancer cells could undergo immunogenic cell death (ICD) to activate the immune response. At the in vivo level, HAuNS@PEG-bio performs NIR-II photothermal, radiosensitization, and ICD therapies through cellular targeting, guided by infrared heat and CT imaging. This work highlights that the constructed biotin-decorated hollow gold nanoshell has a promising potential as a diagnostic and treatment integration reagents for the breast cancer.
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Affiliation(s)
- Yongjian Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Wei Meng
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Ming Chen
- The People's Hospital of Gaozhou, Maoming 525200, China
| | - Lianying Zhang
- School of Pharmacy Sciences, Southwest Medical University, Luzhou 646000, China
| | - Mingwa Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Xiaotong Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Jian Peng
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Naihan Huang
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Wenhua Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China.
| | - Jinxiang Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China.
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18
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Xu R, Shen S, Wang D, Ye J, Song S, Wang Z, Yue Z. The role of HIF-1α-mediated autophagy in ionizing radiation-induced testicular injury. J Mol Histol 2023; 54:439-451. [PMID: 37728670 DOI: 10.1007/s10735-023-10153-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 09/04/2023] [Indexed: 09/21/2023]
Abstract
Testis, as a key organ for maintaining male fertility, are extremely sensitive to ionizing radiation (IR). IR-induced testicular dysfunction and infertility are common adverse effects of radiation therapy in patients with pelvic cancer. To study the phenotype and mechanism of IR-induced testicular injury, the mice were irradiated with different radiation doses (0, 2 and 5 Gy) below the semi-lethal dose for one month. Our present results showed that testicular weight and the serum testosterone levels significantly decreased with the structural injury of the testis in an IR dose-dependent manner, indicating that IR caused not only the structural damage of the testis, but also the functional damage. Further analysis by TUNEL staining and Western blotting found that IR induced the apoptosis in a dose-dependent manner as indicated by increased expressions of cleaved caspase3, p53 and Bax on Day 15 after IR treatment. Combined with significantly increased oxidative stress, these results indicated that IR-induced testicular damage may be a long-term, progressively aggravated process, accompanied by apoptosis. Given the role of autophagy in apoptosis, the present study also detected and analyzed the localization and expressions of autophagy-related proteins LC-3I/II, beclin1, p62 and Atg12 in testicular cells, and found that LC-3II, beclin1 and Atg12 expressions significantly increased in the testicular cells of mice irradiated with 2 Gy and 5 Gy, while p62 expression significantly decreased with 5 Gy, implying autophagy was involved in the apoptosis of testicular cells induced by IR. Furthermore, the expressions of HIF-1α and BNIP3 were significantly enhanced in the testis cells of mice irradiated with 2 Gy and 5 Gy, suggesting the potential role of HIF-1α/BNIP3-mediated autophagy in the apoptosis of testicular cells induced by IR. Taken together, our findings demonstrated that HIF-1α/BNIP3-mediated autophagy not only plays a protective effect on the testicular cells of mice irradiated with 2 Gy, but also induces the apoptosis of the testicular cells of mice irradiated with 5 Gy, indicating the double effects on apoptosis, which will help us further understanding the molecular mechanisms of IR-induced testicular injury, and will facilitate us further studies on testicular radioprotection.
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Affiliation(s)
- Renfeng Xu
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Provincial Key Laboratory for Developmental Biology and Neurosciences, College of Life Sciences, Fujian Normal University, Fuzhou, 350007, China
- Department of Cell Biology and Medical Genetics, Carson International Cancer Center, Guangdong Key Laboratory for Genome Stability and Disease Prevention, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Siting Shen
- Department of Cell Biology and Medical Genetics, Carson International Cancer Center, Guangdong Key Laboratory for Genome Stability and Disease Prevention, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Defan Wang
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Jianqing Ye
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Provincial Key Laboratory for Developmental Biology and Neurosciences, College of Life Sciences, Fujian Normal University, Fuzhou, 350007, China
| | - Shiting Song
- Department of Cell Biology and Medical Genetics, Carson International Cancer Center, Guangdong Key Laboratory for Genome Stability and Disease Prevention, Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Zhengchao Wang
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Provincial Key Laboratory for Developmental Biology and Neurosciences, College of Life Sciences, Fujian Normal University, Fuzhou, 350007, China.
| | - Zhicao Yue
- Department of Cell Biology and Medical Genetics, Carson International Cancer Center, Guangdong Key Laboratory for Genome Stability and Disease Prevention, Shenzhen University School of Medicine, Shenzhen, 518060, China.
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Li CH, Lim SH, Jeong YI, Ryu HH, Jung S. Synergistic Effects of Radiotherapy With JNK Inhibitor-Incorporated Nanoparticle in an Intracranial Lewis Lung Carcinoma Mouse Models. IEEE Trans Nanobioscience 2023; 22:845-854. [PMID: 37022021 DOI: 10.1109/tnb.2023.3238687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Radiosurgery has been recognized as a reasonable treatment for metastatic brain tumors. Increasing the radiosensitivity and synergistic effects are possible ways to improve the therapeutic efficacy of specific regions of tumors. c-Jun-N-terminal kinase (JNK) signaling regulates H2AX phosphorylation to repair radiation-induced DNA breakage. We previously showed that blocking JNK signaling influenced radiosensitivity in vitro and in an in vivo mouse tumor model. Drugs can be incorporated into nanoparticles to produce a slow-release effect. This study assessed JNK radiosensitivity following the slow release of the JNK inhibitor SP600125 from a poly (DL-lactide-co-glycolide) (LGEsese) block copolymer in a brain tumor model. MATERIALS AND METHODS A LGEsese block copolymer was synthesized to fabricate SP600125-incorporated nanoparticles by nanoprecipitation and dialysis methods. The chemical structure of the LGEsese block copolymer was confirmed by 1H nuclear magnetic resonance (NMR) spectroscopy. The physicochemical and morphological properties were observed by transmission electron microscopy (TEM) imaging and measured with particle size analyzer. The blood-brain barrier (BBB) permeability to the JNK inhibitor was estimated by BBBflammaTM 440-dye-labeled SP600125. The effects of the JNK inhibitor were investigated using SP600125-incorporated nanoparticles and by optical bioluminescence, magnetic resonance imaging (MRI), and a survival assay in a mouse brain tumor model for Lewis lung cancer (LLC)-Fluc cells. DNA damage was estimated by histone γ H2AX expression and apoptosis was assessed by the immunohistochemical examination of cleaved caspase 3. RESULTS The SP600125-incorporated nanoparticles of the LGEsese block copolymer were spherical and released SP600125 continuously for 24h. The use of BBBflammaTM 440-dye-labeled SP600125 demonstrated the ability of SP600125 to cross the BBB. The blockade of JNK signaling with SP600125-incorporated nanoparticles significantly delayed mouse brain tumor growth and prolonged mouse survival after radiotherapy. γ H2AX, which mediates DNA repair protein, was reduced and the apoptotic protein cleaved-caspase 3 was increased by the combination of radiation and SP600125-incorporated nanoparticles.
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Abdollahi E, Mozdarani H, Alizadeh BZ. Role of circ-FOXO3 and miR-23a in radiosensitivity of breast cancer. Breast Cancer 2023; 30:714-726. [PMID: 37222952 DOI: 10.1007/s12282-023-01463-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 04/25/2023] [Indexed: 05/25/2023]
Abstract
Identifying the radiosensitivity of cells before radiotherapy (RT) in breast cancer (BC) patients allows appropriate switching between routinely used treatment regimens and reduces adverse side effects in exposed patients. In this study, blood was collected from 60 women diagnosed with Invasive Ductal Carcinoma (IDC) BC and 20 healthy women. To predict cellular radiosensitivity, a standard G2-chromosomal assay was performed. From these 60 samples, 20 BC patients were found to be radiosensitive based on the G2 assay. Therefore, molecular studies were finally performed on two equal groups (20 samples each) of patients with and without cellular radiosensitivity. QPCR was performed to examine the expression levels of circ-FOXO3 and miR-23a in peripheral blood mononuclear cells (PBMCs) and RNA sensitivity and specificity were determined by plotting Receiver Operating Characteristic (ROC) curves. Binary logistic regression was performed to identify RNA involvement in BC and cellular radiosensitivity (CR) in BC patients. Meanwhile, qPCR was used to compare differential RNA expression in the radiosensitive MCF-7 and radioresistant MDA-MB-231 cell lines. An annexin -V FITC/PI binding assay was used to measure cell apoptosis 24 and 48 h after 2 Gy, 4 Gy, and 8 Gy gamma-irradiation. Results indicated that circ-FOXO3 was downregulated and miR-23a was upregulated in BC patients. RNA expression levels were directly associated with CR. Cell line results showed that circ-FOXO3 overexpression induced apoptosis in the MCF-7 cell line and miR-23a overexpression inhibited apoptosis in the MDA-MB-231 cell line. Evaluation of the ROC curves revealed that both RNAs had acceptable specificity and sensitivity in predicting CR in BC patients. Binary logistic regression showed that both RNAs were also successful in predicting breast cancer. Although only circ-FOXO3 has been shown to predict CR in BC patients, circ-FOXO3 may function as a tumor suppressor and miR-23a may function as oncomiR in BC. Circ-FOXO3 and miR-23a may be promising potential biomarkers for BC prediction. Furthermore, Circ-FOXO3 could be a potential biomarker for predicting CR in BC patients.
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Affiliation(s)
- Elahe Abdollahi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Mozdarani
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Behrooz Z Alizadeh
- Unit of Personalized Medicine, Department of Epidemiology, University Medical Center Groningen, Groningen, The Netherlands
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21
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Corrales-Guerrero S, Cui T, Castro-Aceituno V, Yang L, Nair S, Feng H, Venere M, Yoon S, DeWees T, Shen C, Williams TM. Inhibition of RRM2 radiosensitizes glioblastoma and uncovers synthetic lethality in combination with targeting CHK1. Cancer Lett 2023; 570:216308. [PMID: 37482342 DOI: 10.1016/j.canlet.2023.216308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/29/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023]
Abstract
Glioblastoma (GBM) is an aggressive malignant primary brain tumor. Radioresistance largely contributes to poor clinical outcomes in GBM patients. We targeted ribonucleotide reductase subunit 2 (RRM2) with triapine to radiosensitize GBM. We found RRM2 is associated with increasing tumor grade, is overexpressed in GBM over lower grade gliomas and normal tissue, and is associated with worse survival. We found silencing or inhibition of RRM2 by siRNA or triapine sensitized GBM cells to ionizing radiation (IR) and delayed resolution of IR-induced γ-H2AX nuclear foci. In vivo, triapine and IR reduced tumor growth and increased mouse survival. Intriguingly, triapine led to RRM2 upregulation and CHK1 activation, suggesting a CHK1-dependent RRM2 upregulation following RRM2 inhibition. Consistently, silencing or inhibition of CHK1 with rabusertib abolished the triapine-induced RRM2 upregulation. Accordingly, combining rabusertib and triapine resulted in synthetic lethality in GBM cells. Collectively, our results suggest RRM2 is a promising therapeutic target for GBM, and targeting RRM2 with triapine sensitizes GBM cells to radiation and independently induces synthetic lethality of GBM cells with CHK1 inhibition. Our findings suggest combining triapine with radiation or rabusertib may improve therapeutic outcomes in GBM.
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Affiliation(s)
- Sergio Corrales-Guerrero
- Biomedical Sciences Graduate Program, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Tiantian Cui
- Department of Radiation Oncology, City of Hope, Duarte, CA, USA
| | | | - Linlin Yang
- Department of Radiation Oncology, City of Hope, Duarte, CA, USA
| | - Sindhu Nair
- Department of Radiation Oncology, City of Hope, Duarte, CA, USA
| | - Haihua Feng
- Department of Radiation Oncology, City of Hope, Duarte, CA, USA
| | - Monica Venere
- Department of Radiation Oncology, The Ohio State University Wexner Medical Center, Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, Columbus, OH, USA
| | - Stephanie Yoon
- Department of Radiation Oncology, City of Hope, Duarte, CA, USA
| | - Todd DeWees
- Division of Biostatistics, City of Hope, Duarte, CA, USA
| | - Changxian Shen
- Department of Radiation Oncology, City of Hope, Duarte, CA, USA
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Dasgupta A, Saifuddin M, McNabb E, Ho L, Lu L, Vesprini D, Karam I, Soliman H, Chow E, Gandhi S, Trudeau M, Tran W, Curpen B, Stanisz G, Sahgal A, Kolios M, Czarnota GJ. Novel MRI-guided focussed ultrasound stimulated microbubble radiation enhancement treatment for breast cancer. Sci Rep 2023; 13:13566. [PMID: 37604988 PMCID: PMC10442356 DOI: 10.1038/s41598-023-40551-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 08/12/2023] [Indexed: 08/23/2023] Open
Abstract
Preclinical studies have demonstrated focused ultrasound (FUS) stimulated microbubble (MB) rupture leads to the activation of acid sphingomyelinase-ceramide pathway in the endothelial cells. When radiotherapy (RT) is delivered concurrently with FUS-MB, apoptotic pathway leads to increased cell death resulting in potent radiosensitization. Here we report the first human trial of using magnetic resonance imaging (MRI) guided FUS-MB treatment in the treatment of breast malignancies. In the phase 1 prospective interventional study, patients with breast cancer were treated with fractionated RT (5 or 10 fractions) to the disease involving breast or chest wall. FUS-MB treatment was delivered before 1st and 5th fractions of RT (within 1 h). Eight patients with 9 tumours were treated. All 7 evaluable patients with at least 3 months follow-up treated for 8 tumours had a complete response in the treated site. The maximum acute toxicity observed was grade 2 dermatitis in 1 site, and grade 1 in 8 treated sites, at one month post RT, which recovered at 3 months. No RT-related late effect or FUS-MB related toxicity was noted. This study demonstrated safety of combined FUS-MB and RT treatment. Promising response rates suggest potential strong radiosensitization effects of the investigational modality.Trial registration: clinicaltrials.gov, identifier NCT04431674.
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Affiliation(s)
- Archya Dasgupta
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
- Physical Sciences, Sunnybrook Research Institute, Toronto, Canada
| | | | - Evan McNabb
- Physical Sciences, Sunnybrook Research Institute, Toronto, Canada
| | - Ling Ho
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
| | - Lin Lu
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
| | - Danny Vesprini
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - Irene Karam
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - Hany Soliman
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - Edward Chow
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - Sonal Gandhi
- Department of Medical Oncology, Sunnybrook Health Sciences Centre, Toronto, Canada
- Department of Medicine, University of Toronto, Toronto, Canada
| | - Maureen Trudeau
- Department of Medical Oncology, Sunnybrook Health Sciences Centre, Toronto, Canada
- Department of Medicine, University of Toronto, Toronto, Canada
| | - William Tran
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | - Belinda Curpen
- Department of Medical Imaging, Sunnybrook Health Sciences, Toronto, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Canada
| | - Greg Stanisz
- Physical Sciences, Sunnybrook Research Institute, Toronto, Canada
- Department of Biophysics, University of Toronto, Toronto, Canada
- Canada Research Chair in Cancer Imaging, Canadian Institutes of Health Research, Toronto, Canada
| | - Arjun Sahgal
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| | | | - Gregory J Czarnota
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, 2075 Bayview Avenue, T2, Toronto, ON, M4N3M5, Canada.
- Department of Radiation Oncology, University of Toronto, Toronto, Canada.
- Physical Sciences, Sunnybrook Research Institute, Toronto, Canada.
- Department of Biophysics, University of Toronto, Toronto, Canada.
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23
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Faddegon B, Blakely EA, Burigo L, Censor Y, Dokic I, Kondo ND, Ortiz R, Méndez JR, Rucinski A, Schubert K, Wahl N, Schulte R. Ionization detail parameters and cluster dose: a mathematical model for selection of nanodosimetric quantities for use in treatment planning in charged particle radiotherapy. Phys Med Biol 2023; 68:10.1088/1361-6560/acea16. [PMID: 37489619 PMCID: PMC10565507 DOI: 10.1088/1361-6560/acea16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/24/2023] [Indexed: 07/26/2023]
Abstract
Objective. To propose a mathematical model for applying ionization detail (ID), the detailed spatial distribution of ionization along a particle track, to proton and ion beam radiotherapy treatment planning (RTP).Approach. Our model provides for selection of preferred ID parameters (Ip) for RTP, that associate closest to biological effects. Cluster dose is proposed to bridge the large gap between nanoscopicIpand macroscopic RTP. Selection ofIpis demonstrated using published cell survival measurements for protons through argon, comparing results for nineteenIp:Nk,k= 2, 3, …, 10, the number of ionizations in clusters ofkor more per particle, andFk,k= 1, 2, …, 10, the number of clusters ofkor more per particle. We then describe application of the model to ID-based RTP and propose a path to clinical translation.Main results. The preferredIpwereN4andF5for aerobic cells,N5andF7for hypoxic cells. Significant differences were found in cell survival for beams having the same LET or the preferredNk. Conversely, there was no significant difference forF5for aerobic cells andF7for hypoxic cells, regardless of ion beam atomic number or energy. Further, cells irradiated with the same cluster dose for theseIphad the same cell survival. Based on these preliminary results and other compelling results in nanodosimetry, it is reasonable to assert thatIpexist that are more closely associated with biological effects than current LET-based approaches and microdosimetric RBE-based models used in particle RTP. However, more biological variables such as cell line and cycle phase, as well as ion beam pulse structure and rate still need investigation.Significance. Our model provides a practical means to select preferredIpfrom radiobiological data, and to convertIpto the macroscopic cluster dose for particle RTP.
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Affiliation(s)
- Bruce Faddegon
- University of California San Francisco, Department of Radiation Oncology 1600 Divisadero Street, San Francisco, CA 94143 United States of America
| | - Eleanor A. Blakely
- Loma Linda University School of Medicine, 11175 Campus St, Loma Linda,CA92350, United States of America
| | - Lucas Burigo
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- National Center for Radiation Research in Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg, Germany
| | - Yair Censor
- Department of Mathematics, University of Haifa, 199 Aba Khoushy Ave. Mount Carmel, Haifa, 3498838, Israel
| | - Ivana Dokic
- Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Division of Molecular and Translational Radiation Oncology, Heidelberg Faculty of Medicine (MFHD) and Heidelberg University Hospital (UKHD), Heidelberg Ion-Beam Therapy Center (HIT), 69120 Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), National Center for Radiation Oncology (NCRO), Heidelberg University Hospital and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Naoki Domínguez Kondo
- University of California San Francisco, Department of Radiation Oncology 1600 Divisadero Street, San Francisco, CA 94143 United States of America
| | - Ramon Ortiz
- University of California San Francisco, Department of Radiation Oncology 1600 Divisadero Street, San Francisco, CA 94143 United States of America
| | - José Ramos Méndez
- University of California San Francisco, Department of Radiation Oncology 1600 Divisadero Street, San Francisco, CA 94143 United States of America
| | - Antoni Rucinski
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland
| | - Keith Schubert
- Baylor University, 1311 S 5th St, Waco, TX 76706, United States of America
| | - Niklas Wahl
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- National Center for Radiation Research in Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg, Germany
| | - Reinhard Schulte
- Loma Linda University School of Medicine, 11085 Campus St, Loma Linda, CA92350, United States of America
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Boopathi E, Den RB, Thangavel C. Innate Immune System in the Context of Radiation Therapy for Cancer. Cancers (Basel) 2023; 15:3972. [PMID: 37568788 PMCID: PMC10417569 DOI: 10.3390/cancers15153972] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Radiation therapy (RT) remains an integral component of modern oncology care, with most cancer patients receiving radiation as a part of their treatment plan. The main goal of ionizing RT is to control the local tumor burden by inducing DNA damage and apoptosis within the tumor cells. The advancement in RT, including intensity-modulated RT (IMRT), stereotactic body RT (SBRT), image-guided RT, and proton therapy, have increased the efficacy of RT, equipping clinicians with techniques to ensure precise and safe administration of radiation doses to tumor cells. In this review, we present the technological advancement in various types of RT methods and highlight their clinical utility and associated limitations. This review provides insights into how RT modulates innate immune signaling and the key players involved in modulating innate immune responses, which have not been well documented earlier. Apoptosis of cancer cells following RT triggers immune systems that contribute to the eradication of tumors through innate and adoptive immunity. The innate immune system consists of various cell types, including macrophages, dendritic cells, and natural killer cells, which serve as key mediators of innate immunity in response to RT. This review will concentrate on the significance of the innate myeloid and lymphoid lineages in anti-tumorigenic processes triggered by RT. Furthermore, we will explore essential strategies to enhance RT efficacy. This review can serve as a platform for researchers to comprehend the clinical application and limitations of various RT methods and provides insights into how RT modulates innate immune signaling.
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Affiliation(s)
- Ettickan Boopathi
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Robert B. Den
- Department of Radiation Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA;
| | - Chellappagounder Thangavel
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Department of Radiation Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA;
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Abdollahi E, Mozdarani H. Epigenetic regulation of circ-HIPK3, circ-PVT1, miR-25, and miR-149 in radiosensitivity of breast cancer. Exp Mol Pathol 2023; 132-133:104865. [PMID: 37536436 DOI: 10.1016/j.yexmp.2023.104865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Assessing the radiosensitivity of cells before administering radiation therapy (RT) to individuals diagnosed with breast cancer (BC) can facilitate the selection of appropriate treatment regimens and minimize the incidence of adverse side effects in patients undergoing radiation exposure. In this research, blood samples were obtained from 60 women who had been diagnosed with Invasive Ductal Carcinoma (IDC) Breast Cancer. The average age of the patients was 47 ± 9.93. Additionally, the study incorporated 20 healthy women, with an average age of 44.43 ± 6.7. A standard G2 assay was conducted to predict the cellular response to radiation. Out of the 60 samples, the G2 assay identified 20 patients with breast cancer who exhibited radiosensitivity. Hence, molecular investigations were ultimately conducted on two equivalent cohorts comprising 20 subjects each, one with and the other without cellular radiosensitivity. The expression levels of miR-149, miR-25, circ-PVT1, and circ-HIPK3 in peripheral blood mononuclear cells (PBMCs) were evaluated using quantitative polymerase chain reaction (qPCR). Receiver Operating Characteristic (ROC) curves were used to evaluate the sensitivity and specificity of the RNAs. An analysis using binary logistic regression was performed to investigate the relationship between RNAs and both BC and cellular radiosensitivity (CR) in patients with BC. The findings revealed a significant upregulation of Circ-HIPK3 and circ-PVT1 in individuals diagnosed with BC. The levels of Circ-HIPK3 and Circ-PVT1 were found to be directly associated with CR in BC patients. The analysis of the ROC curve demonstrated that circ-HIPK3 and circ-PVT1 exhibit favorable specificity and sensitivity in accurately predicting both BC and CR in patients with BC. The findings from the binary logistic regression analysis demonstrated that circ-HIPK3 and circ-PVT1 were effective predictors of both BC and CR. The ROC curve and binary logistic regression analyses provide evidence that miR-25 is a reliable predictor for BC patients exclusively. Our research has demonstrated that circ-HIPK3, circ-PVT1, and miR-25 may be involved in BC regulatory processes. The circular RNAs Circ-HIPK3 and circ-PVT1, as well as miR-25, among other significant biomarkers, could potentially serve as promising biomarkers for predicting BC. Furthermore, Circ-HIPK3 and circ-PVT1 have the potential to serve as biomarkers for predicting CR in BC patients.
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Affiliation(s)
- Elahe Abdollahi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Mozdarani
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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Su J, Su Q, Hu S, Ruan X, Ouyang S. Research Progress on the Anti-Aging Potential of the Active Components of Ginseng. Nutrients 2023; 15:3286. [PMID: 37571224 PMCID: PMC10421173 DOI: 10.3390/nu15153286] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Aging is a cellular state characterized by a permanent cessation of cell division and evasion of apoptosis. DNA damage, metabolic dysfunction, telomere damage, and mitochondrial dysfunction are the main factors associated with senescence. Aging increases β-galactosidase activity, enhances cell spreading, and induces Lamin B1 loss, which further accelerate the aging process. It is associated with a variety of diseases, such as Alzheimer's disease, Parkinson's, type 2 diabetes, and chronic inflammation. Ginseng is a traditional Chinese medicine with anti-aging effects. The active components of ginseng, including saponins, polysaccharides, and active peptides, have antioxidant, anti-apoptotic, neuroprotective, and age-delaying effects. DNA damage is the main factor associated with aging, and the mechanism through which the active ingredients of ginseng reduce DNA damage and delay aging has not been comprehensively described. This review focuses on the anti-aging mechanisms of the active ingredients of ginseng. Furthermore, it broadens the scope of ideas for further research on natural products and aging.
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Affiliation(s)
- Jingqian Su
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; (Q.S.); (S.H.)
- Provincial University Key Laboratory of Microbial Pathogenesis and Interventions, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Qiaofen Su
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; (Q.S.); (S.H.)
- Provincial University Key Laboratory of Microbial Pathogenesis and Interventions, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Shan Hu
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; (Q.S.); (S.H.)
- Provincial University Key Laboratory of Microbial Pathogenesis and Interventions, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Xinglin Ruan
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou 350001, China;
| | - Songying Ouyang
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; (Q.S.); (S.H.)
- Provincial University Key Laboratory of Microbial Pathogenesis and Interventions, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
- Key Laboratory of OptoElectronic Science and Technology for Medicine of the Ministry of Education, Fujian Normal University, Fuzhou 350117, China
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Walter AE, Cosper PF, Nickel KP, Ramesh S, Khan AU, DeWerd LA, Kimple RJ. Biological Characterization of the Effects of Filtration on the Xoft Axxent® Electronic Brachytherapy Source for Cervical Cancer Applications. Radiat Res 2023; 199:429-438. [PMID: 37014873 PMCID: PMC10288372 DOI: 10.1667/rade-22-00112.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 03/10/2023] [Indexed: 04/05/2023]
Abstract
Low-energy X-ray sources that operate in the kilovoltage energy range have been shown to induce more cellular damage when compared to their megavoltage counterparts. However, low-energy X-ray sources are more susceptible to the effects of filtration on the beam spectrum. This work sought to characterize the biological effects of the Xoft Axxent® source, a low-energy therapeutic X-ray source, both with and without the titanium vaginal applicator in place. It was hypothesized that there would be an increase in relative biological effectiveness (RBE) of the Axxent® source compared to 60Co and that the source in the titanium vaginal applicator (SIA) would have decreased biological effects compared to the bare source (BS). This hypothesis was drawn from linear energy transfer (LET) simulations performed using the TOPAS Monte Carlo user code as well a reduction in dose rate of the SIA compared to the BS. A HeLa cell line was maintained and used to evaluate these effects. Clonogenic survival assays were performed to evaluate differences in the RBE between the BS and SIA using 60Co as the reference beam quality. Neutral comet assay was used to assess induction of DNA strand damage by each beam to estimate differences in RBE. Quantification of mitotic errors was used to evaluate differences in chromosomal instability (CIN) induced by the three beam qualities. The BS was responsible for the greatest quantity of cell death due to a greater number of DNA double strand breaks (DSB) and CIN observed in the cells. The differences observed in the BS and SIA surviving fractions and RBE values were consistent with the 13% difference in LET as well as the factor of 3.5 reduction in dose rate of the SIA. Results from the comet and CIN assays were consistent with these results as well. The use of the titanium applicator results in a reduction in the biological effects observed with these sources, but still provides an advantage over megavoltage beam qualities. © 2023 by Radiation Research Society.
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Affiliation(s)
- Autumn E. Walter
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Pippa F. Cosper
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
- University of Wisconsin, Carbone Cancer Center, Madison, WI
| | - Kwangok P. Nickel
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Shrey Ramesh
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Ahtesham U. Khan
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Larry A. DeWerd
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
- University of Wisconsin, Carbone Cancer Center, Madison, WI
| | - Randall J. Kimple
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
- University of Wisconsin, Carbone Cancer Center, Madison, WI
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Bemidinezhad A, Mirzavi F, Gholamhosseinian H, Gheybi F, Soukhtanloo M. Gold-containing liposomes and glucose-coated gold nanoparticles enhances the radiosensitivity of B16F0 melanoma cells via increasing apoptosis and ROS production. Life Sci 2023; 318:121495. [PMID: 36780937 DOI: 10.1016/j.lfs.2023.121495] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/31/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023]
Abstract
AIM To increase the effectiveness of radiation therapy, metals with high Z number are used as radiosensitizers. In this regard, the effectiveness of various gold nanoparticles as radiosensitizer has been proven. Therefore, this study aimed to evaluate the effects of liposomes containing gold ions (Gold-Lips) and glucose-coated gold nanoparticles (Glu-GNPs) on radiation sensitivity of B16F0 melanoma cells. MAIN METHODS Naked GNPs, Glu-GNPs and Gold-Lips were synthesized and their physicochemical properties were evaluated using DLS. The cytotoxicity and sensitivity of the nanoparticles to radiation were evaluated using MTT and colony formation assay, respectively. Flow cytometry was performed to evaluate the apoptotic effect of nanoparticles on B16F0 cells. The intracellular ROS levels and mRNA expression of Bax, Bcl-2, p53, Caspase-3, and Caspase-7 genes were also evaluated. Finally, caspase 3/7 activity was determined using a luminescence assay kit. KEY FINDINGS The results revealed that GNPs, Glu-GNPs, and Gold-Lips had a desired size and zeta potential. Results from the colony assay showed that the all non-toxic concentrations of Gold-Lips significantly increased cell death in B16F0 cells compared with the Glu-GNPs (p > 0.05). Flow cytometry and Caspase-3/-7 activity confirmed the results of the colony assay and showed that increasing the sensitivity of cells to radiation increases apoptosis. Moreover, we found that Gold-Lips increased the mRNA expression of p53, Bax, and Caspase-3/-7, and decreased the Bcl-2 mRNA expression. SIGNIFICANCE Overall, both Gold-Lips and Glu-GNPs enhanced the radiosensitivity of B16F0 cells, however, Gold-Lips had better effects, which could make them a promising tools in cancer radiotherapy.
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Affiliation(s)
- Abolfazl Bemidinezhad
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farshad Mirzavi
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Fatemeh Gheybi
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Soukhtanloo
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.
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Cho C, Lee D, Jeong D, Kim S, Kim MK, Srinivasan S. Characterization of radiation-resistance mechanism in Spirosoma montaniterrae DY10 T in terms of transcriptional regulatory system. Sci Rep 2023; 13:4739. [PMID: 36959250 PMCID: PMC10036542 DOI: 10.1038/s41598-023-31509-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/13/2023] [Indexed: 03/25/2023] Open
Abstract
To respond to the external environmental changes for survival, bacteria regulates expression of a number of genes including transcription factors (TFs). To characterize complex biological phenomena, a biological system-level approach is necessary. Here we utilized six computational biology methods to infer regulatory network and to characterize underlying biologically mechanisms relevant to radiation-resistance. In particular, we inferred gene regulatory network (GRN) and operons of radiation-resistance bacterium Spirosoma montaniterrae DY10[Formula: see text] and identified the major regulators for radiation-resistance. Our results showed that DNA repair and reactive oxygen species (ROS) scavenging mechanisms are key processes and Crp/Fnr family transcriptional regulator works as a master regulatory TF in early response to radiation.
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Affiliation(s)
- Changyun Cho
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826, Republic of Korea
| | - Dohoon Lee
- Bioinformatics Institute, Seoul National University, Seoul, 08826, Republic of Korea
- BK21 FOUR Intelligence Computing, Seoul National University, Seoul, 08826, Republic of Korea
| | - Dabin Jeong
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sun Kim
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Computer Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Myung Kyum Kim
- Department of Bio & Environmental Technology, College of Natural Science, Seoul Women's University, Seoul, 01797, Republic of Korea.
| | - Sathiyaraj Srinivasan
- Department of Bio & Environmental Technology, College of Natural Science, Seoul Women's University, Seoul, 01797, Republic of Korea.
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Wang Y, Singh A, Li G, Yue S, Hertel K, Wang ZJ. Opioid induces increased DNA damage in prefrontal cortex and nucleus accumbens. Pharmacol Biochem Behav 2023; 224:173535. [PMID: 36907467 DOI: 10.1016/j.pbb.2023.173535] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/27/2023] [Accepted: 03/04/2023] [Indexed: 03/14/2023]
Abstract
Opioid use disorder (OUD) is a chronic disease characterized by compulsive opioid taking and seeking, affecting millions of people worldwide. The high relapse rate is one of the biggest challenges in treating opioid addiction. However, the cellular and molecular mechanisms underlying relapse to opioid seeking are still unclear. Recent studies have shown that DNA damage and repair processes are implicated in a broad spectrum of neurodegenerative diseases as well as in substance use disorders. In the present study, we hypothesized that DNA damage is related to relapse to heroin seeking. To test our hypothesis, we aim to examine the overall DNA damage level in prefrontal cortex (PFC) and nucleus accumbens (NAc) after heroin exposure, as well as whether manipulating DNA damage levels can alter heroin seeking. First, we observed increased DNA damage in postmortem PFC and NAc tissues from OUD individuals compared to healthy controls. Next, we found significantly increased levels of DNA damage in the dorsomedial PFC (dmPFC) and NAc from mice that underwent heroin self-administration. Moreover, increased accumulation of DNA damage persisted after prolonged abstinence in mouse dmPFC, but not in NAc. This persistent DNA damage was ameliorated by the treatment of reactive oxygen species (ROS) scavenger N-acetylcysteine, along with attenuated heroin-seeking behavior. Furthermore, intra-PFC infusions of topotecan and etoposide during abstinence, which trigger DNA single-strand breaks and double-strand breaks respectively, potentiated heroin-seeking behavior. These findings provide direct evidence that OUD is associated with the accumulation of DNA damage in the brain (especially in the PFC), which may lead to opioid relapse.
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Affiliation(s)
- Yunwanbin Wang
- Department of Pharmacology & Toxicology, School of Pharmacy, University of Kansas, Lawrence, KS, USA
| | - Archana Singh
- Department of Pharmacology & Toxicology, School of Pharmacy, University of Kansas, Lawrence, KS, USA
| | - Guohui Li
- Department of Pharmacology & Toxicology, School of Pharmacy, University of Kansas, Lawrence, KS, USA; Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shuwen Yue
- Department of Pharmacology & Toxicology, School of Pharmacy, University of Kansas, Lawrence, KS, USA
| | - Kegan Hertel
- Department of Pharmacology & Toxicology, School of Pharmacy, University of Kansas, Lawrence, KS, USA
| | - Zi-Jun Wang
- Department of Pharmacology & Toxicology, School of Pharmacy, University of Kansas, Lawrence, KS, USA; Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, KS, USA.
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Steffens Reinhardt L, Groen K, Newton C, Avery-Kiejda KA. The role of truncated p53 isoforms in the DNA damage response. Biochim Biophys Acta Rev Cancer 2023; 1878:188882. [PMID: 36977456 DOI: 10.1016/j.bbcan.2023.188882] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 03/28/2023]
Abstract
The tumour suppressor p53 is activated following genotoxic stress and regulates the expression of target genes involved in the DNA damage response (DDR). The discovery that p53 isoforms alter the transcription of p53 target genes or p53 protein interactions unveiled an alternative DDR. This review will focus on the role p53 isoforms play in response to DNA damage. The expression of the C-terminally truncated p53 isoforms may be modulated via DNA damage-induced alternative splicing, whereas alternative translation plays an important role in modulating the expression of N-terminally truncated isoforms. The DDR induced by p53 isoforms may enhance the canonical p53 DDR or block cell death mechanisms in a DNA damage- and cell-specific manner, which could contribute to chemoresistance in a cancer context. Thus, a better understanding of the involvement of p53 isoforms in the cell fate decisions could uncover potential therapeutic targets in cancer and other diseases.
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Affiliation(s)
- Luiza Steffens Reinhardt
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia; Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Kira Groen
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia; Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Cheryl Newton
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia; Hunter Medical Research Institute, Newcastle, NSW, Australia
| | - Kelly A Avery-Kiejda
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, The University of Newcastle, Newcastle, NSW, Australia; Hunter Medical Research Institute, Newcastle, NSW, Australia.
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32
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Chen E, Huang J, Chen M, Wu J, Ouyang P, Wang X, Shi D, Liu Z, Zhu W, Sun H, Yang S, Zhang B, Deng W, Qiu H, Xie F. FLI1 regulates radiotherapy resistance in nasopharyngeal carcinoma through TIE1-mediated PI3K/AKT signaling pathway. J Transl Med 2023; 21:134. [PMID: 36814284 PMCID: PMC9945741 DOI: 10.1186/s12967-023-03986-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Radiotherapy resistance is the main cause of treatment failure in nasopharyngeal carcinoma (NPC), which leads to poor prognosis. It is urgent to elucidate the molecular mechanisms underlying radiotherapy resistance. METHODS RNA-seq analysis was applied to five paired progressive disease (PD) and complete response (CR) NPC tissues. Loss-and gain-of-function assays were used for oncogenic function of FLI1 both in vitro and in vivo. RNA-seq analysis, ChIP assays and dual luciferase reporter assays were performed to explore the interaction between FLI1 and TIE1. Gene expression with clinical information from tissue microarray of NPC were analyzed for associations between FLI1/TIE1 expression and NPC prognosis. RESULTS FLI1 is a potential radiosensitivity regulator which was dramatically overexpressed in the patients with PD to radiotherapy compared to those with CR. FLI1 induced radiotherapy resistance and enhanced the ability of DNA damage repair in vitro, and promoted radiotherapy resistance in vivo. Mechanistic investigations showed that FLI1 upregulated the transcription of TIE1 by binding to its promoter, thus activated the PI3K/AKT signaling pathway. A decrease in TIE1 expression restored radiosensitivity of NPC cells. Furthermore, NPC patients with high levels of FLI1 and TIE1 were correlated with poor prognosis. CONCLUSION Our study has revealed that FLI1 regulates radiotherapy resistance of NPC through TIE1-mediated PI3K/AKT signaling pathway, suggesting that targeting the FLI1/TIE1 signaling pathway could be a potential therapeutic strategy to enhance the efficacy of radiotherapy in NPC.
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Affiliation(s)
- Enni Chen
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Jiajia Huang
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Miao Chen
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Jiawei Wu
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Puyun Ouyang
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Xiaonan Wang
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Dingbo Shi
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Zhiqiao Liu
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Wancui Zhu
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Haohui Sun
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Shanshan Yang
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Baoyu Zhang
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Wuguo Deng
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China.
| | - Huijuan Qiu
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China.
| | - Fangyun Xie
- State Key Laboratory of Oncology in South China, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China.
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Guan H, Zhang W, Xie D, Nie Y, Chen S, Sun X, Zhao H, Liu X, Wang H, Huang X, Bai C, Huang B, Zhou P, Gao S. Cytosolic Release of Mitochondrial DNA and Associated cGAS Signaling Mediates Radiation-Induced Hematopoietic Injury of Mice. Int J Mol Sci 2023; 24:ijms24044020. [PMID: 36835431 PMCID: PMC9960871 DOI: 10.3390/ijms24044020] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023] Open
Abstract
Mitochondrion is an important organelle of eukaryotic cells and a critical target of ionizing radiation (IR) outside the nucleus. The biological significance and mechanism of the non-target effect originating from mitochondria have received much attention in the field of radiation biology and protection. In this study, we investigated the effect, role, and radioprotective significance of cytosolic mitochondrial DNA (mtDNA) and its associated cGAS signaling on hematopoietic injury induced by IR in vitro culture cells and in vivo total body irradiated mice in this study. The results demonstrated that γ-ray exposure increases the release of mtDNA into the cytosol to activate cGAS signaling pathway, and the voltage-dependent anion channel (VDAC) may contribute to IR-induced mtDNA release. VDAC1 inhibitor DIDS and cGAS synthetase inhibitor can alleviate bone marrow injury and ameliorate hematopoietic suppression induced by IR via protecting hematopoietic stem cells and adjusting subtype distribution of bone marrow cells, such as attenuating the increase of the F4/80+ macrophage proportion in bone marrow cells. The present study provides a new mechanistic explanation for the radiation non-target effect and an alternative technical strategy for the prevention and treatment of hematopoietic acute radiation syndrome.
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Affiliation(s)
- Hua Guan
- Hengyang Medical School, University of South China, Hengyang 421001, China
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Correspondence: (H.G.); (S.G.)
| | - Wen Zhang
- Hengyang Medical School, University of South China, Hengyang 421001, China
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Dafei Xie
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Yuehua Nie
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
- School of Public Health, University of South China, Hengyang 421001, China
| | - Shi Chen
- Hengyang Medical School, University of South China, Hengyang 421001, China
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
- School of Public Health, University of South China, Hengyang 421001, China
| | - Xiaoya Sun
- Hengyang Medical School, University of South China, Hengyang 421001, China
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
- School of Public Health, University of South China, Hengyang 421001, China
| | - Hongling Zhao
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xiaochang Liu
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Hua Wang
- Beijing Key Laboratory for Radiobiology, Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xin Huang
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Chenjun Bai
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Bo Huang
- School of Public Health, University of South China, Hengyang 421001, China
| | - Pingkun Zhou
- Hengyang Medical School, University of South China, Hengyang 421001, China
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
- School of Public Health, University of South China, Hengyang 421001, China
| | - Shanshan Gao
- Beijing Key Laboratory for Radiobiology, Department of Radiation Biology, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Correspondence: (H.G.); (S.G.)
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Seol MY, Choi SH, Lee IJ, Park HS, Kim HR, Kim SK, Yoon HI. Selective Inhibition of PI3K Isoforms in Brain Tumors Suppresses Tumor Growth by Increasing Radiosensitivity. Yonsei Med J 2023; 64:139-147. [PMID: 36719022 PMCID: PMC9892548 DOI: 10.3349/ymj.2022.0414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 01/21/2023] Open
Abstract
PURPOSE Glioblastoma (GBM) is a malignant brain tumor with poor prognosis. Radioresistance is a major challenge in the treatment of brain tumors. The development of several types of tumors, including GBM, involves the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) signaling pathway. Upon activation, this pathway induces radioresistance. In this study, we investigated whether additional use of selective inhibitors of PI3K isoforms would enhance radiosensitivity in GBM. MATERIALS AND METHODS We evaluated whether radiation combined with PI3K isoform selective inhibitors can suppress radioresistance in GBM. Glioma 261 expressing luciferase (GL261-luc) and LN229 were used to confirm the effect of combination of radiation and PI3K isoform inhibitors in vitro. Cell viability was confirmed by clonogenic assay, and inhibition of PI3K/AKT signaling activation was observed by Western blot. To confirm radiosensitivity, the expression of phospho-γ-H2AX was observed by immunofluorescence. In addition, to identify the effect of a combination of radiation and PI3K-α isoform inhibitor in vivo, an intracranial mouse model was established by implanting GL261-luc. Tumor growth was observed by IVIS imaging, and survival was analyzed using Kaplan-Meier survival curves. RESULTS Suppression of the PI3K/AKT signaling pathway increased radiosensitivity, and PI3K-α inhibition had similar effects on PI3K-pan inhibition in vitro. The combination of radiotherapy and PI3K-α isoform inhibitor suppressed tumor growth and extended survival in vivo. CONCLUSION This study verified that PI3K-α isoform inhibition improves radiosensitivity, resulting in tumor growth suppression and extended survival in GBM mice.
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Affiliation(s)
- Mi Youn Seol
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seo Hee Choi
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Department of Radiation Oncology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Ik Jae Lee
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyung Soon Park
- Division of Medical Oncology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hye Ryun Kim
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Kyum Kim
- Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hong In Yoon
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea.
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Walker FM, Sobral LM, Danis E, Sanford B, Balakrishnan I, Wang D, Pierce A, Karam SD, Serkova NJ, Foreman NK, Venkataraman S, Dowell R, Vibhakar R, Dahl NA. Rapid PTEFb-dependent transcriptional reorganization underpins the glioma adaptive response to radiotherapy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.24.525424. [PMID: 36747867 PMCID: PMC9900817 DOI: 10.1101/2023.01.24.525424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Dynamic regulation of gene expression is fundamental for cellular adaptation to exogenous stressors. PTEFb-mediated pause-release of RNA polymerase II (Pol II) is a conserved regulatory mechanism for synchronous transcriptional induction in response to heat shock, but this pro-survival role has not been examined in the applied context of cancer therapy. Using model systems of pediatric high-grade glioma, we show that rapid genome-wide reorganization of active chromatin facilitates PTEFb-mediated nascent transcriptional induction within hours of exposure to therapeutic ionizing radiation. Concurrent inhibition of PTEFb disrupts this chromatin reorganization and blunts transcriptional induction, abrogating key adaptive programs such as DNA damage repair and cell cycle regulation. This combination demonstrates a potent, synergistic therapeutic potential agnostic of glioma subtype, leading to a marked induction of tumor cell apoptosis and prolongation of xenograft survival. These studies reveal a central role for PTEFb underpinning the early adaptive response to radiotherapy, opening new avenues for combinatorial treatment in these lethal malignancies.
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Garofalo M, Payros D, Penary M, Oswald E, Nougayrède JP, Oswald IP. A novel toxic effect of foodborne trichothecenes: The exacerbation of genotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120625. [PMID: 36410598 DOI: 10.1016/j.envpol.2022.120625] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/25/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Trichothecenes (TCT) are very common mycotoxins. While the effects of DON, the most prevalent TCT, have been extensively studied, less is known about the effect of other trichothecenes. DON has ribotoxic, pro-inflammatory, and cytotoxic potential and induces multiple toxic effects in humans and animals. Although DON is not genotoxic by itself, it has recently been shown that this toxin exacerbates the genotoxicity induced by model or bacterial genotoxins. Here, we show that five TCT, namely T-2 toxin (T-2), diacetoxyscirpenol (DAS), nivalenol (NIV), fusarenon-X (FX), and the newly discovered NX toxin, also exacerbate the DNA damage inflicted by various genotoxins. The exacerbation was dose dependent and observed with phleomycin, a model genotoxin, captan, a pesticide with genotoxic potential, and colibactin, a bacterial genotoxin produced by the intestinal microbiota. For this newly described effect, the trichothecenes ranked in the following order: T-2>DAS > FX > NIV ≥ DON ≥ NX. The genotoxic exacerbating effect of TCT correlated with their ribotoxic potential, as measured by the inhibition of protein synthesis. In conclusion, our data demonstrate that TCT, which are not genotoxic by themselves, exacerbate DNA damage induced by various genotoxins. Therefore, foodborne TCT could enhance the carcinogenic potential of genotoxins present in the diet or produced by intestinal bacteria.
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Affiliation(s)
- Marion Garofalo
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France; IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Delphine Payros
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France; IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Marie Penary
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Eric Oswald
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France; CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
| | | | - Isabelle P Oswald
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France.
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Radiosensitivity in Non-Small-Cell Lung Cancer by MMP10 through the DNA Damage Repair Pathway. JOURNAL OF ONCOLOGY 2023; 2023:5636852. [PMID: 36908704 PMCID: PMC10005878 DOI: 10.1155/2023/5636852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 02/14/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023]
Abstract
NSCLC (non-small-cell lung cancer) is an aggressive form of lung cancer and accompanies high morbidity and mortality. This study investigated the function and associated mechanism of MMP10 during radiotherapy of NSCLC. MMP10 expression in patients and their overall survival rate were assessed through GEPIA. Protein expression was tested by western blotting. Radioresistance was detected in vitro by apoptosis and clonogenic assay. The extent of DNA damage and repair was revealed by the comet test and γH2AX foci test. High MMP10 levels in specimens of lung adenocarcinoma were related to poor patient outcomes. Clonogenic and apoptosis assays revealed that MMP10 knockdown in A549 cells initiated radiosensitization. Furthermore, MMP10 siRNA increased damage to the DNA in NSCLC cells, while MMP10 was observed to participate in DNA damage repair post-ionizing radiation. Thus, after irradiation, MMP10 plays an essential role in NSCLC through the repair pathway of DNA damage; regulating MMP10 for NSCLC radiosensitivity might have potential treatment implications in radiotherapy of NSCLC.
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Danforth JM, Provencher L, Goodarzi AA. Chromatin and the Cellular Response to Particle Radiation-Induced Oxidative and Clustered DNA Damage. Front Cell Dev Biol 2022; 10:910440. [PMID: 35912116 PMCID: PMC9326100 DOI: 10.3389/fcell.2022.910440] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/21/2022] [Indexed: 12/03/2022] Open
Abstract
Exposure to environmental ionizing radiation is prevalent, with greatest lifetime doses typically from high Linear Energy Transfer (high-LET) alpha particles via the radioactive decay of radon gas in indoor air. Particle radiation is highly genotoxic, inducing DNA damage including oxidative base lesions and DNA double strand breaks. Due to the ionization density of high-LET radiation, the consequent damage is highly clustered wherein ≥2 distinct DNA lesions occur within 1–2 helical turns of one another. These multiply-damaged sites are difficult for eukaryotic cells to resolve either quickly or accurately, resulting in the persistence of DNA damage and/or the accumulation of mutations at a greater rate per absorbed dose, relative to lower LET radiation types. The proximity of the same and different types of DNA lesions to one another is challenging for DNA repair processes, with diverse pathways often confounding or interplaying with one another in complex ways. In this context, understanding the state of the higher order chromatin compaction and arrangements is essential, as it influences the density of damage produced by high-LET radiation and regulates the recruitment and activity of DNA repair factors. This review will summarize the latest research exploring the processes by which clustered DNA damage sites are induced, detected, and repaired in the context of chromatin.
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Hasan A, Rizvi SF, Parveen S, Mir SS. Molecular chaperones in DNA repair mechanisms: Role in genomic instability and proteostasis in cancer. Life Sci 2022; 306:120852. [DOI: 10.1016/j.lfs.2022.120852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/14/2022] [Accepted: 07/27/2022] [Indexed: 01/09/2023]
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Xin H, Liu Y, Chen P, Yin T, Wang M, Liu T, Wen Z, Cheng Y. CD155 promotes radioresistance and malignancy of esophageal cancer by regulating Hippo-YAP pathway. Discov Oncol 2022; 13:53. [PMID: 35768666 PMCID: PMC9243211 DOI: 10.1007/s12672-022-00515-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/10/2022] [Indexed: 12/24/2022] Open
Abstract
The expression of CD155 has been observed to increase in various human cancers, but its role in the development of esophageal cancer (EC) is unclear. Radiotherapy is one of the primary therapeutic options for EC. However, radioresistance is still a severe issue in EC treatment. In this study, Oncomine database mining, immunohistochemistry, and survival analysis showed that higher expression of CD155 in patients with EC than in healthy controls. In vitro and in vivo, we found for the first time that irradiation increased the expression of CD155 in EC cells. CD155 knockdown inhibited cell proliferation and migration and tumor formation, and significantly increased radiosensitivity in EC. The in vivo model with high CD155 expression significantly promoted the proliferation and migration of EC cells. Furthermore, increased CD155 expression was associated with poor prognosis in patients with EC. CD155 regulated the Hippo-Yap pathway, influencing cell proliferation and migration. Therefore, CD155 is essential for the proliferation, migration, and radioresistance of EC. CD155 inhibition may be a viable strategy for improving radiation treatment efficacy in individuals with EC.
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Affiliation(s)
- Huixian Xin
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 250012, Jinan, Shandong, China
| | - Yuchen Liu
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 250012, Jinan, Shandong, China
| | - Pengxiang Chen
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 250012, Jinan, Shandong, China
| | - Tianwen Yin
- Department of Radiation Oncology, Shandong Cancer Hospital, and Institute, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong, China
| | - Meijie Wang
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 250012, Jinan, Shandong, China
| | - Tianyu Liu
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 250012, Jinan, Shandong, China
| | - Zhihua Wen
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 250012, Jinan, Shandong, China.
| | - Yufeng Cheng
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 250012, Jinan, Shandong, China.
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Mochizuki C, Kayabe Y, Nakamura J, Igase M, Mizuno T, Nakamura M. Surface Functionalization of Organosilica Nanoparticles With Au Nanoparticles Inhibits Cell Proliferation and Induces Cell Death in 4T1 Mouse Mammary Tumor Cells for DNA and Mitochondrial-Synergized Damage in Radiotherapy. Front Chem 2022; 10:907642. [PMID: 35620651 PMCID: PMC9127317 DOI: 10.3389/fchem.2022.907642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
Radiotherapy is one of the most effective cancer treatments. Au nanoparticles (NPs) are one of the most used X-ray sensitizing materials however the effective small sub-nm size of Au NPs used for X-ray sensitizers is disadvantageous for cellular uptake. Here, we propose the surface functionalization of organosilica NPs (OS) with Au NPs (OS/Au), which combined the 100 nm size of OS and the sub-nm size of Au NPs, and synthesized effective Au materials as an X-ray sensitizer. The X-ray sensitizing potential for 4T1 mouse mammary tumor cells was revealed using a multifaceted evaluation combined with a fluorescence microscopic cell imaging assay. The number of polyethyleneimine (PEI)-modified OS (OS/PEI) and OS/Au (OS/Au/PEI) uptake per 4T1 mouse mammary tumor cell was the same; however, 4T1 cells treated with OS/Au/PEI exhibited significant inhibition of cell proliferation and increases in cell death by X-ray irradiation at 8Gy. The non-apoptotic death of OS/Au/PEI-treated 4T1 cells was increased by DNA and mitochondrial-synergized damage increase and showed potential applications in radiotherapy.
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Affiliation(s)
- Chihiro Mochizuki
- Department of Organ Anatomy and Nanomedicine, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
- Core Clusters for Research Initiatives of Yamaguchi University, Yamaguchi, Japan
| | - Yukihito Kayabe
- Department of Organ Anatomy and Nanomedicine, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Junna Nakamura
- Department of Organ Anatomy and Nanomedicine, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
- Core Clusters for Research Initiatives of Yamaguchi University, Yamaguchi, Japan
| | - Masaya Igase
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Michihiro Nakamura
- Department of Organ Anatomy and Nanomedicine, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
- Core Clusters for Research Initiatives of Yamaguchi University, Yamaguchi, Japan
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Jaipanya P, Chanplakorn P. Spinal metastasis: narrative reviews of the current evidence and treatment modalities. J Int Med Res 2022; 50:3000605221091665. [PMID: 35437050 PMCID: PMC9021485 DOI: 10.1177/03000605221091665] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The treatment for spinal metastasis has evolved significantly during the past decade. An advancement in systemic therapy has led to a prolonged overall survival in cancer patients, thus increasing the incidence of spinal metastasis. In addition, with the improved treatment armamentarium, the prediction of patient survival using traditional prognostic models may have limitations and these require the incorporation of some novel parameters to improve their prognostic accuracy. The development of minimally-invasive spinal procedures and minimal access surgical techniques have facilitated a quicker patient recovery and return to systemic treatment. These modern interventions help to alleviate pain and improve quality of life, even in candidates with a relatively short life expectancy. Radiotherapy may be considered in non-surgical candidates or as adjuvant therapy for improving local tumour control. Stereotactic radiosurgery has facilitated this even in radioresistant tumours and may even replace surgery in radiosensitive malignancies. This narrative review summarizes the current evidence leading to the paradigm shifts in the modern treatment of spinal metastasis.
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Affiliation(s)
- Pilan Jaipanya
- Chakri Naruebodindra Medical Institute, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand.,Department of Orthopaedics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pongsthorn Chanplakorn
- Department of Orthopaedics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Koka K, Verma A, Dwarakanath BS, Papineni RVL. Technological Advancements in External Beam Radiation Therapy (EBRT): An Indispensable Tool for Cancer Treatment. Cancer Manag Res 2022; 14:1421-1429. [PMID: 35431581 PMCID: PMC9012312 DOI: 10.2147/cmar.s351744] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/26/2022] [Indexed: 12/14/2022] Open
Abstract
Recent technological advancements have increased the efficacy of radiotherapy, leading to effective management of cancer patients with enhanced patient survival and improved quality of life. Several important developments like multileaf collimator, integration of imaging techniques like positron emission tomography (PET) and computed tomography (CT), involvement of advanced dose calculation algorithms, and delivery techniques have increased tumor dose distribution and decreased normal tissue toxicity. Three-dimensional conformal radiotherapy (3DCRT), intensity-modulated radiotherapy (IMRT), stereotactic radiotherapy, image-guided radiotherapy (IGT), and particle therapy have facilitated the planning procedures, accurate tumor delineation, and dose estimation for effective personalized treatment. In this review, we present the technological advancements in various types of EBRT methods and discuss their clinical utility and associated limitations. We also reveal novel approaches of using biocompatible yttrium oxide scintillator-photosensitizer complex (YSM) that can generate X-ray induced cytotoxic reactive oxygen species, facilitating X-ray activated photodynamic therapy (XPDT (external beam) and/or iXPDT (internal X-ray source)) and azido-derivatives of 2-deoxy-D-glucose (2-DG) as agents for site-specific radiation-induced DNA damage.
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Affiliation(s)
| | | | - Bilikere S Dwarakanath
- Central Research Facility, Sri Ramachandra Institute of Higher Education and Research Porur, Chennai, India
| | - Rao V L Papineni
- PACT & Health LLC, Branford, CT, USA
- Department of Surgery, University of Kansas Medical Center, Kansas City, KS, USA
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The Chromatin Architectural Protein CTCF Is Critical for Cell Survival upon Irradiation-Induced DNA Damage. Int J Mol Sci 2022; 23:ijms23073896. [PMID: 35409255 PMCID: PMC8999573 DOI: 10.3390/ijms23073896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/26/2022] [Accepted: 03/29/2022] [Indexed: 02/05/2023] Open
Abstract
CTCF is a nuclear protein initially discovered for its role in enhancer-promoter insulation. It has been shown to play a role in genome architecture and in fact, its DNA binding sites are enriched at the borders of chromatin domains. Recently, we showed that depletion of CTCF impairs the DNA damage response to ionizing radiation. To investigate the relationship between chromatin domains and DNA damage repair, we present here clonogenic survival assays in different cell lines upon CTCF knockdown and ionizing irradiation. The application of a wide range of ionizing irradiation doses (0–10 Gy) allowed us to investigate the survival response through a biophysical model that accounts for the double-strand breaks’ probability distribution onto chromatin domains. We demonstrate that the radiosensitivity of different cell lines is increased upon lowering the amount of the architectural protein. Our model shows that the deficiency in the DNA repair ability is related to the changes in the size of chromatin domains that occur when different amounts of CTCF are present in the nucleus.
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Czaja M, Skirlińska-Nosek K, Adamczyk O, Sofińska K, Wilkosz N, Rajfur Z, Szymoński M, Lipiec E. Raman Research on Bleomycin-Induced DNA Strand Breaks and Repair Processes in Living Cells. Int J Mol Sci 2022; 23:3524. [PMID: 35408885 PMCID: PMC8998246 DOI: 10.3390/ijms23073524] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/20/2022] [Accepted: 03/22/2022] [Indexed: 01/27/2023] Open
Abstract
Even several thousands of DNA lesions are induced in one cell within one day. DNA damage may lead to mutations, formation of chromosomal aberrations, or cellular death. A particularly cytotoxic type of DNA damage is single- and double-strand breaks (SSBs and DSBs, respectively). In this work, we followed DNA conformational transitions induced by the disruption of DNA backbone. Conformational changes of chromatin in living cells were induced by a bleomycin (BLM), an anticancer drug, which generates SSBs and DSBs. Raman micro-spectroscopy enabled to observe chemical changes at the level of single cell and to collect hyperspectral images of molecular structure and composition with sub-micrometer resolution. We applied multivariate data analysis methods to extract key information from registered data, particularly to probe DNA conformational changes. Applied methodology enabled to track conformational transition from B-DNA to A-DNA upon cellular response to BLM treatment. Additionally, increased expression of proteins within the cell nucleus resulting from the activation of repair processes was demonstrated. The ongoing DNA repair process under the BLM action was also confirmed with confocal laser scanning fluorescent microscopy.
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Affiliation(s)
| | | | | | | | | | | | | | - Ewelina Lipiec
- M. Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland; (M.C.); (K.S.-N.); (O.A.); (K.S.); (N.W.); (Z.R.); (M.S.)
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Niklas M, Schlegel J, Liew H, Zimmermann F, Rein K, Walsh DW, Dzyubachyk O, Holland-Letz T, Rahmanian S, Greilich S, Runz A, Jäkel O, Debus J, Abdollahi A. Biosensor for deconvolution of individual cell fate in response to ion beam irradiation. CELL REPORTS METHODS 2022; 2:100169. [PMID: 35474967 PMCID: PMC9017136 DOI: 10.1016/j.crmeth.2022.100169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 09/10/2021] [Accepted: 01/25/2022] [Indexed: 12/25/2022]
Abstract
Clonogenic survival assay constitutes the gold standard method for quantifying radiobiological effects. However, it neglects cellular radiation response variability and heterogeneous energy deposition by ion beams on the microscopic scale. We introduce "Cell-Fit-HD4D" a biosensor that enables a deconvolution of individual cell fate in response to the microscopic energy deposition as visualized by optical microscopy. Cell-Fit-HD4D enables single-cell dosimetry in clinically relevant complex radiation fields by correlating microscopic beam parameters with biological endpoints. Decrypting the ion beam's energy deposition and molecular effects at the single-cell level has the potential to improve our understanding of radiobiological dose concepts as well as radiobiological study approaches in general.
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Affiliation(s)
- Martin Niklas
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
| | - Julian Schlegel
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
| | - Hans Liew
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
| | - Ferdinand Zimmermann
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
| | - Katrin Rein
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
| | - Dietrich W.M. Walsh
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
| | - Oleh Dzyubachyk
- Department of Radiology and Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, the Netherlands
| | - Tim Holland-Letz
- Division of Biostatistics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Shirin Rahmanian
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Steffen Greilich
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Armin Runz
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Oliver Jäkel
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
- Division of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Jürgen Debus
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
| | - Amir Abdollahi
- Division of Molecular and Translational Radiation Oncology and Clinical Cooperation Unit Translational Radiation Oncology, German Cancer Research Center (DKFZ) and Heidelberg University Hospital, 69120 Heidelberg, Germany
- National Center for Tumor Diseases, German Cancer Consortium, Heidelberg Institute of Radiation Oncology and National Center for Radiation Oncology, 69120 Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg, Germany
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Soylemez E, Ozcagli E, Korkmaz S, Tok OE, Aydin MS, Omurtag GZ. The modulation of oxidative stress and DNA damage to radiology technicians by repair enzymes XRCC1 and XRCC3 The association of oxidative stress and DNA damage with XRCC1 and XRCC3 polymorphisms in radiology technicians. Toxicol Ind Health 2022; 38:70-79. [PMID: 35191782 DOI: 10.1177/07482337211062680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ionizing radiation has widespread use in medicine in the diagnosis and treatment of many medical conditions. Radiology technicians are one group that is occupationally exposed to low doses of radiation. There are questions regarding whether low dose exposure to radiation could have long-term health consequences. Assessing the effect of radiation on genetic material is essential for appraising long-term health results. Hereditary variations in DNA repair genes cause differentiation in individual responses to radiation related health effects. This study aimed to determine oxidative stress and DNA damage, and their relationship to XRCC1 (Arg399Gln) and XRCC3 (Thr241Met) polymorphisms in radiology technicians occupationally exposed to low dose radiation. Peripheral blood samples were collected from 45 radiology technicians and age-matched with 40 healthy control individuals working in office environments. Our results showed that radiology technicians had significantly greater oxidative stress and DNA damage than the control group, and women appeared more susceptible to occupational radiation exposure than men. Individuals with wild-type genotypes for XRCC1 (Arg/Arg) and XRCC3 (Thr/Thr) had less DNA damage. Lower DNA damage levels could be explained by the enhanced capacity to repair low dose radiation induced DNA damage. Further studies are needed to evaluate the role of DNA repair genes in individuals that are occupationally exposed to low dose radiation.
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Affiliation(s)
- Esma Soylemez
- Department of Pharmacology, 498029Pendik Veterinary Control Institute, İstanbul, Turkey
| | - Eren Ozcagli
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, 369917İstanbul University, İstanbul, Turkey
| | - Serol Korkmaz
- Department of Virology, 498029Pendik Veterinary Control Institute, İstanbul, Turkey
| | - Olgu Enis Tok
- Department of Histology and Embryology, Faculty of Medicine, 218502İstanbul Medipol University, İstanbul, Turkey
| | - Mehmet Serif Aydin
- Regenerative and Restorative Medicine Research Center, 472602İstanbul Medipol University, İstanbul, Turkey
| | - Gulden Zehra Omurtag
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, 218502İstanbul Medipol University, İstanbul, Turkey
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Pavletić B, Runzheimer K, Siems K, Koch S, Cortesão M, Ramos-Nascimento A, Moeller R. Spaceflight Virology: What Do We Know about Viral Threats in the Spaceflight Environment? ASTROBIOLOGY 2022; 22:210-224. [PMID: 34981957 PMCID: PMC8861927 DOI: 10.1089/ast.2021.0009] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Viruses constitute a significant part of the human microbiome, so wherever humans go, viruses are brought with them, even on space missions. In this mini review, we focus on the International Space Station (ISS) as the only current human habitat in space that has a diverse range of viral genera that infect microorganisms from bacteria to eukaryotes. Thus, we have reviewed the literature on the physical conditions of space habitats that have an impact on both virus transmissibility and interaction with their host, which include UV radiation, ionizing radiation, humidity, and microgravity. Also, we briefly comment on the practices used on space missions that reduce virus spread, that is, use of antimicrobial surfaces, spacecraft sterilization practices, and air filtration. Finally, we turn our attention to the health threats that viruses pose to space travel. Overall, even though efforts are taken to ensure safe conditions during human space travel, for example, preflight quarantines of astronauts, we reflect on the potential risks humans might be exposed to and how those risks might be aggravated in extraterrestrial habitats.
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Affiliation(s)
- Bruno Pavletić
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology Research Group, Linder Hoehe, Cologne (Köln), Germany
| | - Katharina Runzheimer
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology Research Group, Linder Hoehe, Cologne (Köln), Germany
| | - Katharina Siems
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology Research Group, Linder Hoehe, Cologne (Köln), Germany
| | - Stella Koch
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology Research Group, Linder Hoehe, Cologne (Köln), Germany
| | - Marta Cortesão
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology Research Group, Linder Hoehe, Cologne (Köln), Germany
| | - Ana Ramos-Nascimento
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology Research Group, Linder Hoehe, Cologne (Köln), Germany
| | - Ralf Moeller
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology Research Group, Linder Hoehe, Cologne (Köln), Germany
- Address correspondence to: Ralf Moeller, German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology Department, Aerospace Microbiology, Linder Hoehe, Building 24, Room 104, D-51147 Köln, Germany
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49
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Geng A, Xu S, Yao Y, Qian Z, Wang X, Sun J, Zhang J, Shi F, Chen Z, Zhang W, Mao Z, Lu W, Jiang Y. Chrysin impairs genomic stability by suppressing DNA double-strand break repair in breast cancer cells. Cell Cycle 2022; 21:379-391. [PMID: 34985375 PMCID: PMC8855858 DOI: 10.1080/15384101.2021.2020434] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Chrysin, a natural compound isolated from various plants, such as the blue passion flower (Passiflora caerulea L.), exhibits multiple pharmacological activities, such as antitumor, anti-inflammatory and antioxidant activities. Accumulating evidence shows that chrysin inhibits cancer cell growth by inducing apoptosis and regulating cell cycle arrest. However, whether chrysin is involved in regulating genomic stability and its underlying mechanisms in breast cancer cells have not been determined. Here, we demonstrated that chrysin impairs genomic stability in MCF-7 and BT474 cells, inhibits cell survival and enhances the sensitivity of MCF-7 cells to chemotherapeutic drugs. Further experiments revealed that chrysin impairs DNA double-strand break (DSB) repair, resulting in accumulation of DNA damage. Mechanistic studies showed that chrysin inhibits the recruitment of the key NHEJ factor 53BP1 and delays the recruitment of the HR factor RAD51. Thus, we elucidated novel regulatory mechanisms of chrysin in DSB repair and proposed that a combination of chrysin and chemotherapy has curative potential in breast cancers.
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Affiliation(s)
- Anke Geng
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China,Department of Gynecology of Shanghai First Maternity & Infant Hospital, School of Medicine, Tongji University, Shanghai, China,CONTACT Anke Geng Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Shiya Xu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yunxia Yao
- College of Pharmacy, Yanbian University, Yanji, Jilin, China
| | - Zhen Qian
- Department of Gynecology of Shanghai First Maternity & Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiyue Wang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China,Department of Gynecology of Shanghai First Maternity & Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiahui Sun
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Jingyuan Zhang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Fangfang Shi
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zhixi Chen
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Weina Zhang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zhiyong Mao
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China,Department of Gynecology of Shanghai First Maternity & Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wen Lu
- Department of Gynecology of Shanghai First Maternity & Infant Hospital, School of Medicine, Tongji University, Shanghai, China,Wen Lu Department of Gynecology of Shanghai First Maternity & Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ying Jiang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China,Ying Jiang Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
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Finelli R, Moreira BP, Alves MG, Agarwal A. Unraveling the Molecular Impact of Sperm DNA Damage on Human Reproduction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1358:77-113. [DOI: 10.1007/978-3-030-89340-8_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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