1
|
Yan W, Hu W, Song Y, Liu X, Zhou Z, Li W, Cao Z, Pei W, Zhou G, Hu G. Differential network analysis reveals the key role of the ECM-receptor pathway in α-particle-induced malignant transformation. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102260. [PMID: 39049874 PMCID: PMC11268105 DOI: 10.1016/j.omtn.2024.102260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 06/14/2024] [Indexed: 07/27/2024]
Abstract
Space particle radiation is a major environmental factor in spaceflight, and it is known to cause body damage and even trigger cancer, but with unknown molecular etiologies. To examine these causes, we developed a systems biology approach by focusing on the co-expression network analysis of transcriptomics profiles obtained from single high-dose (SE) and multiple low-dose (ME) α-particle radiation exposures of BEAS-2B human bronchial epithelial cells. First, the differential network and pathway analysis based on the global network and the core modules showed that genes in the ME group had higher enrichment for the extracellular matrix (ECM)-receptor interaction pathway. Then, collagen gene COL1A1 was screened as an important gene in the ME group assessed by network parameters and an expression study of lung adenocarcinoma samples. COL1A1 was found to promote the emergence of the neoplastic characteristics of BEAS-2B cells by both in vitro experimental analyses and in vivo immunohistochemical staining. These findings suggested that the degree of malignant transformation of cells in the ME group was greater than that of the SE, which may be caused by the dysregulation of the ECM-receptor pathway.
Collapse
Affiliation(s)
- Wenying Yan
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Department of Bioinformatics, Center for Systems Biology, School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou 215213, China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Soochow University, Suzhou 215123, China
| | - Wentao Hu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Yidan Song
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Department of Bioinformatics, Center for Systems Biology, School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou 215213, China
| | - Xingyi Liu
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Department of Bioinformatics, Center for Systems Biology, School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou 215213, China
| | - Ziyun Zhou
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Department of Bioinformatics, Center for Systems Biology, School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou 215213, China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Soochow University, Suzhou 215123, China
| | - Wanshi Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Zhifei Cao
- Department of Pathology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Weiwei Pei
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Guangming Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Guang Hu
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Department of Bioinformatics, Center for Systems Biology, School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou 215213, China
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Soochow University, Suzhou 215123, China
- Key Laboratory of Alkene-carbon Fibres-based Technology & Application for Detection of Major Infectious Diseases, Soochow University, Suzhou 215123, China
- Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou 215123, China
| |
Collapse
|
2
|
Patel TA, Jain B, Cho HL, Corti C, Vapiwala N, Chino F, Leeman JE, Dee EC. Second Malignancy Probabilities in Patients With Breast Cancer Treated With Conventional Versus Hypofractionated External Beam Radiation Therapy in the Adjuvant Setting. Clin Oncol (R Coll Radiol) 2024; 36:183-192. [PMID: 38184401 DOI: 10.1016/j.clon.2023.12.002] [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: 06/12/2023] [Revised: 10/12/2023] [Accepted: 12/05/2023] [Indexed: 01/08/2024]
Abstract
AIMS For women with breast cancer, seminal studies have shown that adjuvant hypofractionated external beam radiation therapy (hEBRT) maintains similar outcomes and may reduce overall costs compared with conventionally fractionated external beam radiation therapy (cEBRT). However, it is unclear whether hEBRT may be associated with differential risk of development of radiation-induced second malignancies compared with cEBRT. Because the occurrence of second malignancies is small, large databases may improve our understanding of the relative risk of second malignancies between hEBRT and cEBRT. MATERIALS AND METHODS Using the National Cancer Database, we carried out a retrospective cohort analysis of women diagnosed with non-metastatic, stage 0-III breast cancer from 2004 to 2017. All patients had a lumpectomy or mastectomy and a follow-up time of at least 60 months after diagnosis. The probability of second malignancies in women receiving adjuvant cEBRT or hEBRT was compared using multivariable logistic regression adjusting for sociodemographic, geographical, clinical and treatment factors, allowing for relative (but not absolute) comparison of second malignancy risk. Temporal sensitivity analyses stratified by year of diagnosis and length of follow-up time were also conducted. RESULTS Of the 125 228 women in our study, 115 576 (92.3%) received cEBRT and 9652 (7.71%) received hEBRT. The median age of the cohort was 60 (interquartile range 51-68) years at diagnosis and the median follow-up time was 99.61 (interquartile range 77.5-128.49) months. Upon adjusting for sociodemographic and clinical factors, patients who received hEBRT had no difference in relative risk than patients who received cEBRT (odds ratio 0.937, 95% confidence interval 0.869-1.010, P = 0.091). In analyses stratified by year of diagnosis, and stratified by length of follow-up, there was no difference in second malignancy probability between patients who completed hEBRT and patients who completed cEBRT. CONCLUSIONS In this analysis of over 120 000 women with non-metastatic breast cancer, hEBRT was not associated with different odds of developing second malignancies compared with cEBRT. Our findings may inform patient counselling in the choice of radiation regimens for breast cancer and further support the safety of hypofractionated regimens for breast cancer.
Collapse
Affiliation(s)
- T A Patel
- University of Pennsylvania, Philadelphia, PA, USA
| | - B Jain
- Stanford School of Medicine, Stanford, CA, USA
| | - H L Cho
- Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - C Corti
- Breast Oncology Program, Dana-Farber Cancer Centre, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, IRCCS, Milan, Italy; Department of Oncology and Hematology-Oncology (DIPO), University of Milan, Milan, Italy
| | - N Vapiwala
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
| | - F Chino
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - J E Leeman
- Department of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - E C Dee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| |
Collapse
|
3
|
Wang D, Zhou Q, Yin Y, Lu D, Hu L, Richmond RH, Moon HB, Yan B, Jiang G. Implications of Fukushima's Radioactive Water Discharge on Global Environmental Sustainability. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 38330250 DOI: 10.1021/acs.est.4c00955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Affiliation(s)
- Dingyi Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Qunfang Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yongguang Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Dawei Lu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Robert H Richmond
- Kewalo Marine Laboratory, University of Hawaii at Manoa, Honolulu, Hawaii 96813, United States
| | - Hyo-Bang Moon
- Department of Marine Science and Convergence Engineering, Hanyang University ERICA, Ansan 15588, Republic of Korea
| | - Bing Yan
- Institute of Environmental Research at the Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| |
Collapse
|
4
|
Lee JW, Mun H, Kim JH, Ko S, Kim YK, Shim MJ, Kim K, Ho CW, Park HB, Kim M, Lee C, Choi SH, Kim JW, Jeong JH, Yoon JH, Min KW, Son TG. Low-Dose Ionizing Radiation-Crosslinking Immunoprecipitation (LDIR-CLIP) Identified Irradiation-Sensitive RNAs for RNA-Binding Protein HuR-Mediated Decay. BIOLOGY 2023; 12:1533. [PMID: 38132359 PMCID: PMC10740889 DOI: 10.3390/biology12121533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/25/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
Although ionizing radiation (IR) is widely used for therapeutic and research purposes, studies on low-dose ionizing radiation (LDIR) are limited compared with those on other IR approaches, such as high-dose gamma irradiation and ultraviolet irradiation. High-dose IR affects DNA damage response and nucleotide-protein crosslinking, among other processes; however, the molecular consequences of LDIR have been poorly investigated. Here, we developed a method to profile RNA species crosslinked to an RNA-binding protein, namely, human antigen R (HuR), using LDIR and high-throughput RNA sequencing. The RNA fragments isolated via LDIR-crosslinking and immunoprecipitation sequencing were crosslinked to HuR and protected from RNase-mediated digestion. Upon crosslinking HuR to target mRNAs such as PAX6, ZFP91, NR2F6, and CAND2, the transcripts degraded rapidly in human cell lines. Additionally, PAX6 and NR2F6 downregulation mediated the beneficial effects of LDIR on cell viability. Thus, our approach provides a method for investigating post-transcriptional gene regulation using LDIR.
Collapse
Affiliation(s)
- Ji Won Lee
- Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si 25457, Republic of Korea; (J.W.L.); (M.J.S.); (K.K.); (C.W.H.); (H.B.P.)
| | - Hyejin Mun
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA; (H.M.); (S.K.); (J.-H.Y.)
- Department of Oncology Science, University of Oklahoma, Oklahoma City, OK 73104, USA;
| | - Jeong-Hyun Kim
- Department of Medicine, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea;
| | - Seungbeom Ko
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA; (H.M.); (S.K.); (J.-H.Y.)
| | - Young-Kook Kim
- Biomedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Republic of Korea;
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Republic of Korea
| | - Min Ji Shim
- Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si 25457, Republic of Korea; (J.W.L.); (M.J.S.); (K.K.); (C.W.H.); (H.B.P.)
| | - Kyungmin Kim
- Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si 25457, Republic of Korea; (J.W.L.); (M.J.S.); (K.K.); (C.W.H.); (H.B.P.)
| | - Chul Woong Ho
- Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si 25457, Republic of Korea; (J.W.L.); (M.J.S.); (K.K.); (C.W.H.); (H.B.P.)
| | - Hyun Bong Park
- Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si 25457, Republic of Korea; (J.W.L.); (M.J.S.); (K.K.); (C.W.H.); (H.B.P.)
| | - Meesun Kim
- Research Center, Dongnam Institute of Radiological and Medical Science, Busan 46033, Republic of Korea; (M.K.); (C.L.); (S.H.C.)
| | - Chaeyoung Lee
- Research Center, Dongnam Institute of Radiological and Medical Science, Busan 46033, Republic of Korea; (M.K.); (C.L.); (S.H.C.)
| | - Si Ho Choi
- Research Center, Dongnam Institute of Radiological and Medical Science, Busan 46033, Republic of Korea; (M.K.); (C.L.); (S.H.C.)
| | - Jung-Woong Kim
- Department of Life Science, College of Natural Sciences, Chung-Ang University, Seoul 06974, Republic of Korea;
| | - Ji-Hoon Jeong
- Department of Oncology Science, University of Oklahoma, Oklahoma City, OK 73104, USA;
| | - Je-Hyun Yoon
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA; (H.M.); (S.K.); (J.-H.Y.)
- Department of Oncology Science, University of Oklahoma, Oklahoma City, OK 73104, USA;
| | - Kyung-Won Min
- Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si 25457, Republic of Korea; (J.W.L.); (M.J.S.); (K.K.); (C.W.H.); (H.B.P.)
| | - Tae Gen Son
- Research Center, Dongnam Institute of Radiological and Medical Science, Busan 46033, Republic of Korea; (M.K.); (C.L.); (S.H.C.)
| |
Collapse
|
5
|
Atajanova T, Rahman MM, Konieczkowski DJ, Morris ZS. Radiation-associated secondary malignancies: a novel opportunity for applying immunotherapies. Cancer Immunol Immunother 2023; 72:3445-3452. [PMID: 37658906 DOI: 10.1007/s00262-023-03532-1] [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: 04/17/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023]
Abstract
Radiation is commonly used as a treatment intended to cure or palliate cancer patients. Despite remarkable advances in the precision of radiotherapy delivery, even the most advanced forms inevitably expose some healthy tissues surrounding the target site to radiation. On rare occasions, this results in the development of radiation-associated secondary malignancies (RASM). RASM are typically high-grade and carry a poorer prognosis than their non-radiated counterparts. RASM are characterized by a high mutation burden, increased T cell infiltration, and a microenvironment that bears unique inflammatory signatures of prior radiation, including increased expression of various cytokines (e.g., TGF-β, TNF-α, IL4, and IL10). Interestingly, these cytokines have been shown to up-regulate the expression of PD-1 and/or PD-L1-an immune checkpoint receptor/ligand pair that is commonly targeted by immune checkpoint blocking immunotherapies. Here, we review the current understanding of the tumor-immune interactions in RASM, highlight the distinct clinical and molecular characteristics of RASM that may render them immunologically "hot," and propose a rationale for the formal testing of immune checkpoint blockade as a treatment approach for patients with RASM.
Collapse
Affiliation(s)
- Tavus Atajanova
- Biochemistry and Biophysics Program, Amherst College, Amherst, MA, 01002, USA
- Department of Sociology, Amherst College, Amherst, MA, 01002, USA
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, 53726, USA
| | - Md Mahfuzur Rahman
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, 53726, USA
| | - David J Konieczkowski
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Zachary S Morris
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, 53726, USA.
| |
Collapse
|
6
|
Sproull M, Wilson E, Miller R, Camphausen K. The Future of Radioactive Medicine. Radiat Res 2023; 200:80-91. [PMID: 37141143 PMCID: PMC10466314 DOI: 10.1667/rade-23-00031.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/07/2023] [Indexed: 05/05/2023]
Abstract
The discovery of X rays in the late 19th century heralded the beginning of a new age in medicine, and the advent of channeling the power of radiation to diagnose and treat human disease. Radiation has been leveraged in medicine in a multitude of ways and is a critical element of cancer care including screening, diagnosis, surveillance, and interventional treatments. Modern radiotherapy techniques include a multitude of methodologies utilizing both externally and internally delivered radiation from a variety of approaches. This review provides a comprehensive overview of contemporary radiotherapy methodologies, the field of radiopharmaceuticals and theranostics, effects of low dose radiation and highlights the phenomena of fear of exposure to radiation and its impact in modern medicine.
Collapse
Affiliation(s)
- M. Sproull
- Radiation Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - E. Wilson
- Radiation Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - R.W. Miller
- Radiation Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - K. Camphausen
- Radiation Oncology Branch, National Cancer Institute, Bethesda, Maryland
| |
Collapse
|
7
|
Kim SK, Park CW, Olama MA, Lee HS, Shorrab A, Hwang JY, Lim ST, Lee SC. Preoperative Dyeing Technique for Decreasing Radiation Exposure in Unilateral Biportal Endoscopic Spine Surgery. World Neurosurg 2023; 175:e455-e464. [PMID: 37024085 DOI: 10.1016/j.wneu.2023.03.122] [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: 10/27/2022] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/08/2023]
Abstract
BACKGROUND Minimally invasive surgery has many advantages, including early recovery and cosmetic preservation. However, the higher radiation exposure to physicians and patients has drawbacks. Preoperative tissue dyeing techniques are feasible options for reducing radiation exposure and procedure time, but their efficacy has not yet been evaluated. Therefore, this study aimed to evaluate surgical outcomes and reduce radiation exposure during unilateral biportal endoscopy surgery. METHODS This was a prospective, case-controlled analysis in a tertiary hospital. Patients receiving experimental tissue dye and controls in the nondye group were compared from May 2020 to September 2021. The ipsilateral posterolateral approach (IPA) and the far lateral approach (FLA) were analyzed separately among all single-level spinal procedures without instrumentation. Operative details (operation time, improvement of back and leg pain, and length of hospital stay) and radiation exposure (dose and duration) were compared. RESULTS A total of 88 cases were included, consisting of 64 interlaminar approaches (experimental: 33, control: 31) and 24 FLAs (experimental: 13 and control: 11). In the IPA approach, the patient and physician radiation exposure doses and duration decreased significantly. Conversely, for the FLA, only the duration of the physician exposure decreased significantly. CONCLUSIONS Preoperative tissue dyeing techniques using IPA can reduce radiation exposure for physicians and patients. However, a decrease in the duration of radiation was observed only in physicians using the FLA. The dyeing technique is effective in IPA, but the efficacy of FLA is doubtful.
Collapse
Affiliation(s)
- Seung-Kook Kim
- Department of Spine Center, Yeson Hospital, Kyungki, Korea; Department of Pharmaceutical Medicine and Regulatory Sciences, College of Medicine and Pharmacy, Yonsei University, Incheon, Korea.
| | - Cheol-Woong Park
- Deparment of Neurosurgery, Daejeon Woori Hospital, Daejeon, Korea
| | - Mohammad Al Olama
- Department of Neurosurgery, University Hospital Sharjah, Sharjah, United Arab Emirates
| | - Hae-Soung Lee
- Himchan and University Hospital Sharjah Spine and Joint Centre, University Hospital Sharjah, Sharjah, United Arab Emirates
| | - Ahmed Shorrab
- Department of Anesthesiology, University hospital Sharjah, Sharjah, United Arab Emirates
| | - Joo-Young Hwang
- Deparment of Neurosurgery, Himchan General Hospital, Incheon, Korea
| | - Soo Taek Lim
- Department of Spine Center, Yeson Hospital, Kyungki, Korea
| | - Su-Chan Lee
- Himchan and University Hospital Sharjah Spine and Joint Centre, University Hospital Sharjah, Sharjah, United Arab Emirates
| |
Collapse
|
8
|
Jain V, Saini D, Soren DC, Kumar VA, Vivek Kumar PR, Koya PKM, Jaikrishan G, Das B. Non-linear dose response of DNA double strand breaks in response to chronic low dose radiation in individuals from high level natural radiation areas of Kerala coast. Genes Environ 2023; 45:16. [PMID: 37127760 PMCID: PMC10150514 DOI: 10.1186/s41021-023-00273-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 04/06/2023] [Indexed: 05/03/2023] Open
Abstract
BACKGROUND The human population living in high level natural radiation areas (HLNRAs) of Kerala coast provide unique opportunities to study the biological effects of low dose and low dose rate ionizing radiation below 100 mGy. The level of radiation in this area varies from < 1.0 to 45 mGy/year. The areas with ≤ 1.50 mGy/year are considered as normal level natural radiation areas (NLNRA) and > 1.50 mGy/year, as high level natural radiation areas (HLNRA). The present study evaluated dose response relationship between DNA double strand breaks (DSBs) and background radiation dose in individuals residing in Kerala coast. Venous blood samples were collected from 200 individuals belonging to NLNRA (n = 50) and four dose groups of HLNRA; 1.51-5.0 mGy/year (n = 50), 5.01-10.0 mGy/year (n = 30), 10.01-15.0 mGy/year (n = 33), > 15.0 mGy/year (n = 37) with written informed consent. The mean dose of NLNRA and four HLNRA dose groups studied are 1.21 ± 0.21 (range: 0.57-1.49), 3.02 ± 0.95 (range: 1.57-4.93), 7.43 ± 1.48 (range: 5.01-9.75), 12.22 ± 1.47 (range: 10.21-14.99), 21.64 ± 6.28 (range: 15.26-39.88) mGy/year, respectively. DNA DSBs were quantified using γH2AX as a marker, where foci were counted per cell using fluorescence microscopy. RESULTS Our results revealed that the frequency of γH2AX foci per cell was 0.090 ± 0.051 and 0.096 ± 0.051, respectively in NLNRA and HLNRA individuals, which were not significantly different (t198 = 0.33; P = 0.739). The frequency of γH2AX foci was observed to be 0.090 ± 0.051, 0.096 ± 0.051, 0.076 ± 0.036, 0.087 ± 0.042, 0.108 ± 0.046 per cell, respectively in different dose groups of ≤ 1.50, 1.51-5.0, 5.01-10.0, 10.01-15.0, > 15.0mGy/year (ANOVA, F4,195 = 2.18, P = 0.072) and suggested non-linearity in dose response. The frequency of γH2AX foci was observed to be 0.098 ± 0.042, 0.078 ± 0.037, 0.084 ± 0.042, 0.099 ± 0.058, 0.097 ± 0.06 and 0.114 ± 0.033 per cell in the age groups of ≤ 29, 30-34, 35-39, 40-44, 45-49 and ≥ 50 years, respectively (ANOVA, F5,194 = 2.17, P = 0.059), which suggested marginal influence of age on the baseline of DSBs. Personal habits such as smoking (No v/s Yes: 0.092 ± 0.047 v/s 0.093 ± 0.048, t198 = 0.13; P = 0.895) and drinking alcohol (No v/s Yes: 0.096 ± 0.052 v/s 0.091 ± 0.045, t198 = 0.62; P = 0.538) did not show any influence on DSBs in the population. CONCLUSION The present study did not show any increase in DSBs in different dose groups of HLNRA compared to NLNRA, however, it suggested a non-linear dose response between DNA DSBs and chronic low dose radiation.
Collapse
Affiliation(s)
- Vinay Jain
- Low Level Radiation Research Section (LLRRS), Radiation Biology & Health Sciences Division (RB&HSD), Bio-Sciences Group (BSG), Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, 400 085, India
- Homi Bhabha National Institute (HBNI), Anushakti Nagar, Trombay, Mumbai, 400 094, India
| | - Divyalakshmi Saini
- Low Level Radiation Research Section (LLRRS), Radiation Biology & Health Sciences Division (RB&HSD), Bio-Sciences Group (BSG), Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, 400 085, India
| | - D C Soren
- Low Level Radiation Research Section (LLRRS), Radiation Biology & Health Sciences Division (RB&HSD), Bio-Sciences Group (BSG), Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, 400 085, India
| | - V Anil Kumar
- Low Level Radiation Research Section (LLRRS), Radiation Biology & Health Sciences Division (RB&HSD), Bio-Sciences Group (BSG), Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, 400 085, India
| | - P R Vivek Kumar
- Low Level Radiation Research Laboratory, LLRRS, RB&HSD, BSG, BARC, IRE Campus, Beach Road, Kollam, Kerala, 691 001, India
- Homi Bhabha National Institute (HBNI), Anushakti Nagar, Trombay, Mumbai, 400 094, India
| | - P K M Koya
- Low Level Radiation Research Laboratory, LLRRS, RB&HSD, BSG, BARC, IRE Campus, Beach Road, Kollam, Kerala, 691 001, India
| | - G Jaikrishan
- Low Level Radiation Research Laboratory, LLRRS, RB&HSD, BSG, BARC, IRE Campus, Beach Road, Kollam, Kerala, 691 001, India
| | - Birajalaxmi Das
- Low Level Radiation Research Section (LLRRS), Radiation Biology & Health Sciences Division (RB&HSD), Bio-Sciences Group (BSG), Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, 400 085, India.
- Homi Bhabha National Institute (HBNI), Anushakti Nagar, Trombay, Mumbai, 400 094, India.
| |
Collapse
|
9
|
Sato A, Kraynak J, Marciscano AE, Galluzzi L. Radiation therapy: An old dog learning new tricks. Methods Cell Biol 2023; 174:xv-xxv. [PMID: 37039770 DOI: 10.1016/s0091-679x(23)00036-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
10
|
Sato A, Kraynak J, Marciscano AE, Galluzzi L. Radiation therapy: An old dog learning new tricks. Methods Cell Biol 2023; 180:xv-xxv. [PMID: 37890936 DOI: 10.1016/s0091-679x(23)00166-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Affiliation(s)
- Ai Sato
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, United States
| | - Jeffrey Kraynak
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, United States
| | - Ariel E Marciscano
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, United States
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, United States; Sandra and Edward Meyer Cancer Center, New York, NY, United States; Caryl and Israel Englander Institute for Precision Medicine, New York, NY, United States.
| |
Collapse
|
11
|
Lakshmanan S, Gimelli A. Cancer risk in adult congenital heart disease. INTERNATIONAL JOURNAL OF CARDIOLOGY CONGENITAL HEART DISEASE 2023. [DOI: 10.1016/j.ijcchd.2023.100441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
|
12
|
Ghogale KS, Naorem R, Waghmare CM. Multiple primary head and neck squamous cell cancer: Lessons learnt. J Cancer Res Ther 2023; 19:S658-S663. [PMID: 38384035 DOI: 10.4103/jcrt.jcrt_392_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/25/2022] [Indexed: 02/23/2024]
Abstract
AIM To analyze the demographic profile, treatment outcome, and factors affecting them in multiple primary head and neck squamous cell cancer (MPHNSCC) patients. MATERIALS AND METHODS Hospital case records of patients with histopathology proven MPHNSCC registered in the radiation oncology department from January 2008 to December 2020 were retrospectively studied. Modified Warren-Gates criteria were used to define MPHNSCC. Demographic and clinical details were recorded and analyzed. RESULTS Twenty-seven patients had histopathology proven MPHNSCC. The median age at diagnosis of an index case was 50 years (minimum 26, maximum 70) with a male to female sex ratio of 22:5. Seventeen (62.96%) patients were tobacco users; either smoked or smokeless. The oral cavity was the commonest sub-site for both an index and second primary malignancy (22 patients; 81.48%) and the majority presented in a locally advanced stage of disease (10; 37.03% and 16; 62.95% for an index and second primary, respectively). The presentation was simultaneous, synchronous, and metachronous in 1 (3.7%), 2 (7.4%), and 24 (88.89%) patients, respectively. Two patients had three sites of MPHNSCC. The average duration of chronicity was 54.37 months (min. 8 and max. 156). MPHNSCC were ipsilateral in 10 (37.04%) patients and re-irradiation was planned for 22 (81.48%) patients with 50% treatment compliance. At the time of the last hospital visit, 18 (66.66%) patients were alive with disease, 7 (25.92%) patients were alive without disease, and 2 (7.40%) patients died of disease. CONCLUSION A higher percentage of MPHNSCC originated from the oral cavity and the majority presented in the locally advanced stage of disease; despite the site being accessible to self-oral examination. Patient education and physician's awareness regarding the MPHNSCC are needed.
Collapse
Affiliation(s)
- Kshitish S Ghogale
- Department of Radiation Oncology, Dr. Balasaheb Vikhe Patil Rural Medical College and Dr. Vitthalrao Vikhe Patil Pravara Rural Hospital, PIMS-DU, Loni, Tal- Rahata, Dist- Ahmadnagar, Maharashtra, India
| | | | | |
Collapse
|
13
|
Sampadi B, Vermeulen S, Mišovic B, Boei JJ, Batth TS, Chang JG, Paulsen MT, Magnuson B, Schimmel J, Kool H, Olie CS, Everts B, Vertegaal ACO, Olsen JV, Ljungman M, Jeggo PA, Mullenders LHF, Vrieling H. Divergent Molecular and Cellular Responses to Low and High-Dose Ionizing Radiation. Cells 2022; 11:cells11233794. [PMID: 36497055 PMCID: PMC9739411 DOI: 10.3390/cells11233794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Cancer risk after ionizing radiation (IR) is assumed to be linear with the dose; however, for low doses, definite evidence is lacking. Here, using temporal multi-omic systems analyses after a low (LD; 0.1 Gy) or a high (HD; 1 Gy) dose of X-rays, we show that, although the DNA damage response (DDR) displayed dose proportionality, many other molecular and cellular responses did not. Phosphoproteomics uncovered a novel mode of phospho-signaling via S12-PPP1R7, and large-scale dephosphorylation events that regulate mitotic exit control in undamaged cells and the G2/M checkpoint upon IR in a dose-dependent manner. The phosphoproteomics of irradiated DNA double-strand breaks (DSBs) repair-deficient cells unveiled extended phospho-signaling duration in either a dose-dependent (DDR signaling) or independent (mTOR-ERK-MAPK signaling) manner without affecting signal magnitude. Nascent transcriptomics revealed the transcriptional activation of genes involved in NRF2-regulated antioxidant defense, redox-sensitive ERK-MAPK signaling, glycolysis and mitochondrial function after LD, suggesting a prominent role for reactive oxygen species (ROS) in molecular and cellular responses to LD exposure, whereas DDR genes were prominently activated after HD. However, how and to what extent the observed dose-dependent differences in molecular and cellular responses may impact cancer development remain unclear, as the induction of chromosomal damage was found to be dose-proportional (10-200 mGy).
Collapse
Affiliation(s)
- Bharath Sampadi
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
- Correspondence: (B.S.); (H.V.)
| | - Sylvia Vermeulen
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Branislav Mišovic
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Jan J. Boei
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Tanveer S. Batth
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Science, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Jer-Gung Chang
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Michelle T. Paulsen
- Department of Radiation Oncology, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Brian Magnuson
- Department of Radiation Oncology, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Joost Schimmel
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Hanneke Kool
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Cyriel S. Olie
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Bart Everts
- Department of Parasitology, Leiden University Medical Center, 2333ZA Leiden, The Netherlands
| | - Alfred C. O. Vertegaal
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
| | - Jesper V. Olsen
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Science, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Mats Ljungman
- Department of Radiation Oncology, Rogel Cancer Center and Center for RNA Biomedicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Penny A. Jeggo
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Brighton BN1 9RQ, UK
| | - Leon H. F. Mullenders
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya 464-8601, Japan
| | - Harry Vrieling
- Department of Human Genetics, Leiden University Medical Center, 2333ZC Leiden, The Netherlands
- Correspondence: (B.S.); (H.V.)
| |
Collapse
|
14
|
Nagpal I, Yuan ZM. p53-mediated metabolic response to low doses of ionizing radiation. Int J Radiat Biol 2022; 99:934-940. [DOI: 10.1080/09553002.2022.2142983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Isha Nagpal
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Zhi-Min Yuan
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| |
Collapse
|
15
|
Yang Z, Zhong W, Yang L, Wen P, Luo Y, Wu C. The emerging role of exosomes in radiotherapy. Cell Commun Signal 2022; 20:171. [PMCID: PMC9620591 DOI: 10.1186/s12964-022-00986-1] [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: 07/29/2022] [Accepted: 10/01/2022] [Indexed: 11/10/2022] Open
Abstract
Presently, more than half of cancer patients receive radiotherapy to cure localized cancer, palliate symptoms, or control the progression of cancer. However, radioresistance and radiation-induced bystander effects (RIBEs) are still challenging problems in cancer treatment. Exosomes, as a kind of extracellular vesicle, have a significant function in mediating and regulating intercellular signaling pathways. An increasing number of studies have shown that radiotherapy can increase exosome secretion and alter exosome cargo. Furthermore, radiation-induced exosomes are involved in the mechanism of radioresistance and RIBEs. Therefore, exosomes hold great promise for clinical application in radiotherapy. In this review, we not only focus on the influence of radiation on exosome biogenesis, secretion and cargoes but also on the mechanism of radiation-induced exosomes in radioresistance and RIBEs, which may expand our insight into the cooperative function of exosomes in radiotherapy.
Video abstract
Collapse
Affiliation(s)
- Zhenyi Yang
- grid.412644.10000 0004 5909 0696Fourth Affiliated Hospital of China Medical University, Liaoning, China
| | - Wen Zhong
- grid.412644.10000 0004 5909 0696Fourth Affiliated Hospital of China Medical University, Liaoning, China
| | - Liang Yang
- grid.412644.10000 0004 5909 0696Fourth Affiliated Hospital of China Medical University, Liaoning, China
| | - Ping Wen
- grid.412644.10000 0004 5909 0696Fourth Affiliated Hospital of China Medical University, Liaoning, China
| | - Yixuan Luo
- grid.412644.10000 0004 5909 0696Fourth Affiliated Hospital of China Medical University, Liaoning, China
| | - Chunli Wu
- grid.412644.10000 0004 5909 0696Fourth Affiliated Hospital of China Medical University, Liaoning, China
| |
Collapse
|
16
|
BRIDE v2: A Validated Collection of Genes Involved in the Mammalian Brain Response to Low-Dose Ionizing Radiation. RADIATION 2022. [DOI: 10.3390/radiation2040024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
There is significant interest in the response of the mammalian brain to low-dose ionizing radiation (LDIR), mainly examined by gene or protein expression, with applications in radiation safety on Earth, the atmosphere and outer space. Potential associations of molecular-level responses with sensory or cognitive defects and neurodegenerative diseases are currently under investigation. Previously, we have described a light-weight approach for the storage, analysis and distribution of relevant datasets, with the platform BRIDE. We have re-implemented the platform as BRIDE v2 on the cloud, using the bioinformatics infrastructure ELIXIR. We connected the annotated list of 3174 unique gene records with modern omics resources for downstream computational analysis. BRIDE v2 is a cloud-based platform with capabilities that enable researchers to extract, analyze, visualize as well as export the gene collection. The resource is freely available online at <http://bride-db.eu>.
Collapse
|
17
|
Hatano Y, Nakamura H, Fujiwara S, Saito S, Kenmotsu T. Damages of DNA in tritiated water. Enzymes 2022; 51:131-152. [PMID: 36336406 DOI: 10.1016/bs.enz.2022.08.009] [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] [Indexed: 06/16/2023]
Abstract
Tritium is a radioisotope of hydrogen emitting low energy β-rays in disintegration to 3He. DNA molecules are damaged mainly by β-ray irradiation, and additional damages can be induced by break of chemical bond by nuclear transmutation to inert 3He. Deep knowledges of the mechanisms underlying DNA damages lead to better understanding of biological effects of tritium. This chapter reviews recent experimental and computer simulation activities on quantitative evaluation of damage rates by β-ray irradiation and nuclear transmutation. The rate of DNA double-strand breaks in tritiated water has been examined using a single molecule observation method. The effects of β-ray irradiation were not noticeable at the level of tritium concentration of ∼kBq/cm3, while the irradiation effects were clear at tritium concentrations of ∼MBq/cm3. The factors affecting on the DSB rate are discussed. A new image processing method for the automatic measurement of DNA length using OpenCV and deep learning is also introduced. The effects of tritium transmutation on hydrogen bonds acting between the two main strands of DNA have been examined using molecular dynamics simulations. The study showed that the collapsing of DNA structure by the transmutation can be quantitatively evaluated using the root mean square deviation of atomic positions.
Collapse
Affiliation(s)
- Yuji Hatano
- Hydrogen Isotope Research Center, University of Toyama, Toyama, Japan.
| | - Hiroaki Nakamura
- National Institute for Fusion Science, Toki, Japan; Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Susumu Fujiwara
- Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Kyoto, Japan
| | - Seiki Saito
- Graduate School of Science and Engineering, Yamagata University, Yamagata, Japan
| | - Takahiro Kenmotsu
- Faculty of Life and Medical Sciences, Doshisha University, Kyoto, Japan
| |
Collapse
|
18
|
Lierová A, Milanová M, Pospíchal J, Novotný J, Storm J, Andrejsová L, Šinkorová Z. BIOLOGICAL EFFECTS OF LOW-DOSE RADIATION FROM CT IMAGING. RADIATION PROTECTION DOSIMETRY 2022; 198:514-520. [PMID: 36005951 DOI: 10.1093/rpd/ncac091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/21/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
The dramatic rise in diagnostic procedures, radioisotope-based scans and intervention procedures has created a very valid concern regarding the long-term biological consequences from exposure to low doses of ionizing radiation. Despite its unambiguous medical benefits, additional knowledge on the health outcome of its use is essential. This review summarizes the available information regarding the biological consequences of low-dose radiation (LDR) exposure in humans (e.g. cytogenetic changes, cancer risk and radiation-induced cataracts. However, LDR studies remain relatively new and thus an encompassing view of its biological effects and relevant mechanisms in the human body is still needed.
Collapse
Affiliation(s)
- Anna Lierová
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
- Department of Clinical Subspecialties, Faculty of Health Studies, University of Pardubice, Pardubice, Czech Republic
| | - Marcela Milanová
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| | - Jan Pospíchal
- Department of Clinical Subspecialties, Faculty of Health Studies, University of Pardubice, Pardubice, Czech Republic
| | - Jan Novotný
- Department of Clinical Subspecialties, Faculty of Health Studies, University of Pardubice, Pardubice, Czech Republic
| | - Jaroslav Storm
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
- Department of Clinical Subspecialties, Faculty of Health Studies, University of Pardubice, Pardubice, Czech Republic
| | - Lenka Andrejsová
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| | - Zuzana Šinkorová
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| |
Collapse
|
19
|
Dose Limits and Countermeasures for Mitigating Radiation Risk in Moon and Mars Exploration. PHYSICS 2022. [DOI: 10.3390/physics4010013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
After decades of research on low-Earth orbit, national space agencies and private entrepreneurs are investing in exploration of the Solar system. The main health risk for human space exploration is late toxicity caused by exposure to cosmic rays. On Earth, the exposure of radiation workers is regulated by dose limits and mitigated by shielding and reducing exposure times. For space travel, different international space agencies adopt different limits, recently modified as reviewed in this paper. Shielding and reduced transit time are currently the only practical solutions to maintain acceptable risks in deep space missions.
Collapse
|
20
|
Sato A, Kraynak J, Marciscano AE, Galluzzi L. Radiation therapy: An old dog learning new tricks. Methods Cell Biol 2022; 172:xiii-xxiii. [PMID: 36064230 PMCID: PMC10087864 DOI: 10.1016/s0091-679x(22)00139-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
21
|
Cattoni A, Molinari S, Riva B, Di Marco S, Adavastro M, Faraguna MC, Garella V, Medici F, Nicolosi ML, Pellegrinelli C, Lattuada M, Fraschini D, Pagni F, Biondi A, Balduzzi A. Thyroid function disorders and secondary cancer following haematopoietic stem cell transplantation in pediatrics: State of the art and practical recommendations for a risk-based follow-up. Front Endocrinol (Lausanne) 2022; 13:1064146. [PMID: 36619560 PMCID: PMC9811586 DOI: 10.3389/fendo.2022.1064146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/01/2022] [Indexed: 12/24/2022] Open
Abstract
Thyroid disorders (TD) represent a remarkable share of all the late morbidities experienced following pediatric haematopoietic stem cell transplantation (HSCT), with long-term reported occurrence often exceeding 70%. In addition, the data collected on wide cohorts of survivors assessed longitudinally outlined a progressive increase in the cumulative incidence of TD as far as 30 years following transplantation. Accordingly, a life-long monitoring of thyroid health is warranted among patients exposed to HSCT in childhood, in order to early detect TD and undertake a prompt dedicated treatment. Although several national and international consortia have provided recommendations for the early detection of thyroid disorders among childhood cancer survivors exposed to radiotherapy and alkylating agents, no guidelines specifically and thoroughly focused on HSCT-related TD have been published to date. As stem cell transplantation has become the standard-of-care in a growing body of non-oncological conditions, this urge has become pivotal. To highlight the challenging issues specifically involving this cohort of patients and to provide clinicians with the proposal of a practical follow-up protocol, we reviewed published literature in the light of the shared experience of a multidisciplinary team of pediatric oncologists, transplantologists, pathologists and endocrinologists involved in the long-term care of HSCT survivors. As a final result, we hereby present the proposals of a practical and customized risk-based approach to tailor thyroid health follow-up based on HSCT-related detrimental factors.
Collapse
Affiliation(s)
- Alessandro Cattoni
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
- *Correspondence: Alessandro Cattoni,
| | - Silvia Molinari
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Benedetta Riva
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Santo Di Marco
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Marta Adavastro
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Martha Caterina Faraguna
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Vittoria Garella
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Francesco Medici
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Maria Laura Nicolosi
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Claudia Pellegrinelli
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Martina Lattuada
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Donatella Fraschini
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Fabio Pagni
- Department of Pathology, Università degli Studi di Milano-Bicocca, Ospedale San Gerardo, Monza, Italy
| | - Andrea Biondi
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| | - Adriana Balduzzi
- Department of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione Monza e Brianza per il Bambino e la sua Mamma (MBBM), Ospedale San Gerardo, Monza, Italy
| |
Collapse
|
22
|
Park J, Shin J, Min IK, Bae H, Kim YE, Chung YE. Image Quality and Lesion Detectability of Lower-Dose Abdominopelvic CT Obtained Using Deep Learning Image Reconstruction. Korean J Radiol 2022; 23:402-412. [PMID: 35289146 PMCID: PMC8961013 DOI: 10.3348/kjr.2021.0683] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/22/2021] [Accepted: 10/31/2021] [Indexed: 11/15/2022] Open
Affiliation(s)
- June Park
- Department of Radiology, Seoul Medical Center, Seoul, Korea
| | - Jaeseung Shin
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - In Kyung Min
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Korea
| | - Heejin Bae
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Yeo-Eun Kim
- Department of Radiology, Seoul Medical Center, Seoul, Korea
| | - Yong Eun Chung
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
23
|
Malviya R, Verma S, Sundram S. Advancement and Strategies for the Development of Peptide-Drug Conjugates: Pharmacokinetic Modulation, Role and Clinical Evidence Against Cancer Management. Curr Cancer Drug Targets 2021; 22:286-311. [PMID: 34792003 DOI: 10.2174/1568009621666211118111506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/29/2021] [Accepted: 09/09/2021] [Indexed: 12/24/2022]
Abstract
Currently, many new treatment strategies are being used for the management of cancer. Among them, chemotherapy based on peptides has been of great interest due to the unique features of peptides. This review discusses the role of peptide and peptides analogues in the treatment of cancer, with special emphasis on their pharmacokinetic modulation and research progress. Low molecular weight, targeted drug delivery, enhanced permeability, etc., of the peptide-linked drug conjugates, lead to an increase in the effectiveness of cancer therapy. Various peptides have recently been developed as drugs and vaccines with an altered pharmacokinetic parameter which has subsequently been assessed in different phases of the clinical study. Peptides have made a great impact in the area of cancer therapy and diagnosis. Targeted chemotherapy and drug delivery techniques using peptides are emerging as excellent tools in minimizing problems with conventional chemotherapy. It can be concluded that new advances in using peptides to treat different types of cancer have been shown by different clinical studies indicating that peptides could be used as an ideal therapeutic method in treating cancer due to the novel advantages of peptides. The development of identifying and synthesizing novel peptides could provide a promising choice to patients with cancer.
Collapse
Affiliation(s)
- Rishabha Malviya
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida. India
| | - Swati Verma
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida. India
| | - Sonali Sundram
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida. India
| |
Collapse
|
24
|
Montgomery L, Lund CM, Landry A, Kildea J. Towards the characterization of neutron carcinogenesis through direct action simulations of clustered DNA damage. Phys Med Biol 2021; 66. [PMID: 34555818 DOI: 10.1088/1361-6560/ac2998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/23/2021] [Indexed: 11/11/2022]
Abstract
Neutron exposure poses a unique radiation protection concern because neutrons have a large, energy-dependent relative biological effectiveness (RBE) for stochastic effects. Recent computational studies on the microdosimetric properties of neutron dose deposition have implicated clustered DNA damage as a likely contributor to this marked energy dependence. So far, publications have focused solely on neutron RBE for inducing clusters of DNA damage containing two or more DNA double strand breaks (DSBs). In this study, we have conducted a novel assessment of neutron RBE for inducing all types of clustered DNA damage that contain two or more lesions, stratified by whether the clusters contain DSBs (complex DSB clusters) or not (non-DSB clusters). This assessment was conducted for eighteen initial neutron energies between 1 eV and 10 MeV as well as a reference radiation of 250 keV x-rays. We also examined the energy dependence of cluster length and cluster complexity because these factors are believed to impact the DNA repair process. To carry out our investigation, we developed a user-friendly TOPAS-nBio application that includes a custom nuclear DNA model and a novel algorithm for recording clustered DNA damage. We found that neutron RBE for inducing complex DSB clusters exhibited similar energy dependence to the canonical neutron RBE for stochastic radiobiological effects, at multiple depths in human tissue. Qualitatively similar results were obtained for non-DSB clusters, although the quantitative agreement was lower. Additionally we identified a significant neutron energy dependence in the average length and complexity of clustered lesions. These results support the idea that many types of clustered DNA damage contribute to the energy dependence of neutron RBE for stochastic radiobiological effects and imply that the size and constituent lesions of individual clusters should be taken into account when modeling DNA repair. Our results were qualitatively consistent for (i) multiple radiation doses (including a low-dose 0.1 Gy irradiation), (ii) variations in the maximal lesion separation distance used to define a cluster, and (iii) two distinct collections of physics models used to govern particle transport. Our complete TOPAS-nBio application has been released under an open-source license to enable others to independently validate our work and to expand upon it.
Collapse
Affiliation(s)
- Logan Montgomery
- Medical Physics Unit, McGill University, Montreal, QC, H4A3J1, Canada
| | | | - Anthony Landry
- Prince Edward Island Cancer Treatment Centre, Charlottetown, PE, C1A8T5, Canada.,Department of Radiation Oncology, Dalhousie University, Halifax, NS, B3H4RZ, Canada
| | - John Kildea
- Medical Physics Unit, McGill University, Montreal, QC, H4A3J1, Canada
| |
Collapse
|
25
|
Leu JD, Wang CY, Lo CC, Lin MY, Chang CY, Hung WC, Lin ST, Wang BS, Lee YJ. Involvement of c-Myc in low dose radiation-induced senescence enhanced migration and invasion of unirradiated cancer cells. Aging (Albany NY) 2021; 13:22208-22231. [PMID: 34552037 PMCID: PMC8507273 DOI: 10.18632/aging.203527] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 08/11/2021] [Indexed: 12/27/2022]
Abstract
Ionizing radiation is known to cause cell apoptosis at high dose range, but little is known about the cellular response to low dose radiation. In this study, we found that conditioned medium harvested from WI-38 lung fibroblasts and H1299 lung adenocarcinoma cells exposed to 0.1Gy to 1Gy could enhance the migration and invasion of unirradiated H1299 cells in both 2D and 3D culturing circumstances. Low dose radiation did not induce apoptosis, but induced senescence in irradiated cells. We next examined the expression of immediately early genes including c-Myc and K-Ras. Although both genes could be up-regulated by low dose radiation, induction of c-Myc was more specific to low dose range (0.5Gy) at transcriptional and translational levels. Knockdown of c-Myc by shRNA could repress the senescence induced by low dose radiation. The conditioned medium of irradiated cells induced migration of unirradiated cells was also repressed by knockdown of c-Myc. The c-Myc inhibitor 10058-F4 could suppress low dose radiation induced cell senescence, and the conditioned medium harvested from irradiated cells pretreated with 10058-F4 also lost the ability to enhance the migration of unirradiated cells. The cytokine array analysis revealed that immunosuppressive monocyte chemoattractant protein-1 increased by low dose radiation could be repressed by 10058-F4. We also showed that 10058-F4 could suppress low dose radiation induced tumor progression in a xenograft tumor model. Taken together, current data suggest that -Myc is involved in low dose radiation induced cell senescence and potent bystander effect to increase the motility of unirradiated cells.
Collapse
Affiliation(s)
- Jyh-Der Leu
- Department of Radiation Oncology, Taipei City Hospital, Taipei 110, Taiwan.,Institute of Neuroscience, National Cheng Chi University, Taipei 116, Taiwan
| | - Chung-Yih Wang
- Radiotherapy, Department of Medical Imaging, Cheng Hsin General Hospital, Taipei 112, Taiwan
| | - Chia-Chien Lo
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Min-Ying Lin
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Chun-Yuan Chang
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan.,Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ 08903-2681, USA
| | - Wen-Chin Hung
- Department of Radiation Oncology, Taipei City Hospital, Taipei 110, Taiwan
| | - Shi-Ting Lin
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Bo-Shen Wang
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Yi-Jang Lee
- Department of Radiation Oncology, Taipei City Hospital, Taipei 110, Taiwan.,Cancer Progression Research Center, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| |
Collapse
|
26
|
Glycyrrhizin ameliorating sterile inflammation induced by low-dose radiation exposure. Sci Rep 2021; 11:18356. [PMID: 34526618 PMCID: PMC8443578 DOI: 10.1038/s41598-021-97800-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 08/31/2021] [Indexed: 01/01/2023] Open
Abstract
Glycyrrhizin (GL) is a direct inhibitor of HMGB1 which acts as an alarmin when excreted into the extracellular space. High-dose radiation in radiotherapy induces collateral damage to the normal tissue, which can be mitigated by GL inhibiting HMGB1. The purpose of this study was to assess changes in HMGB1 and pro-inflammatory cytokines and to evaluate the protective effect of GL after low-dose radiation exposure. BALB/c mice were irradiated with 0.1 Gy (n = 10) and 1 Gy (n = 10) with GL being administered to half of the mice (n = 5, respectively) before irradiation. Blood and spleen samples were harvested and assessed for oxidative stress, HMGB1, pro-inflammatory cytokines, and cell viability. HMGB1 and pro-inflammatory cytokines increased and cell viability decreased after irradiation in a dose-dependent manner. Oxidative stress also increased after irradiation, but did not differ between 0.1 Gy and 1 Gy. With the pretreatment of GL, oxidative stress, HMGB1, and all of the pro-inflammatory cytokines decreased while cell viability was preserved. Our findings indicate that even low-dose radiation can induce sterile inflammation by increasing serum HMGB1 and pro-inflammatory cytokines and that GL can ameliorate the sterile inflammatory process by inhibiting HMGB1 to preserve cell viability.
Collapse
|
27
|
Dahl H, Eide DM, Tengs T, Duale N, Kamstra JH, Oughton DH, Olsen AK. Perturbed transcriptional profiles after chronic low dose rate radiation in mice. PLoS One 2021; 16:e0256667. [PMID: 34428250 PMCID: PMC8384182 DOI: 10.1371/journal.pone.0256667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/11/2021] [Indexed: 12/13/2022] Open
Abstract
Adverse health outcomes of ionizing radiation given chronically at low dose rates are highly debated, a controversy also relevant for other stressors. Increased knowledge is needed for a more comprehensive understanding of the damaging potential of ionizing radiation from all dose rates and doses. There is a lack of relevant low dose rate data that is partly ascribed to the rarity of exposure facilities allowing chronic low dose rate exposures. Using the FIGARO facility, we assessed early (one day post-radiation) and late (recovery time of 100-200 days) hepatic genome-wide transcriptional profiles in male mice of two strains (CBA/CaOlaHsd and C57BL/6NHsd) exposed chronically to a low dose rate (2.5 mGy/h; 1200h, LDR), a mid-dose rate (10 mGy/h; 300h, MDR) and acutely to a high dose rate (100 mGy/h; 30h, HDR) of gamma irradiation, given to an equivalent total dose of 3 Gy. Dose-rate and strain-specific transcriptional responses were identified. Differently modulated transcriptional responses across all dose rate exposure groups were evident by the representation of functional biological pathways. Evidence of changed epigenetic regulation (global DNA methylation) was not detected. A period of recovery markedly reduced the number of differentially expressed genes. Using enrichment analysis to identify the functional significance of the modulated genes, perturbed signaling pathways associated with both cancer and non-cancer effects were observed, such as lipid metabolism and inflammation. These pathways were seen after chronic low dose rate and were not restricted to the acute high dose rate exposure. The transcriptional response induced by chronic low dose rate ionizing radiation suggests contribution to conditions such as cardiovascular diseases. We contribute with novel genome wide transcriptional data highlighting dose-rate-specific radiation responses and emphasize the importance of considering both dose rate, duration of exposure, and variability in susceptibility when assessing risks from ionizing radiation.
Collapse
Affiliation(s)
- Hildegunn Dahl
- Department of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- Centre for Environmental Radiation (CERAD), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Dag M. Eide
- Department of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- Centre for Environmental Radiation (CERAD), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Torstein Tengs
- Department of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- Centre for Environmental Radiation (CERAD), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Nur Duale
- Department of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- Centre for Environmental Radiation (CERAD), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Jorke H. Kamstra
- Centre for Environmental Radiation (CERAD), Norwegian University of Life Sciences (NMBU), Ås, Norway
- Faculty of Veterinary Medicine, Department of Population Health Sciences, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Deborah H. Oughton
- Centre for Environmental Radiation (CERAD), Norwegian University of Life Sciences (NMBU), Ås, Norway
| | - Ann-Karin Olsen
- Department of Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- Centre for Environmental Radiation (CERAD), Norwegian University of Life Sciences (NMBU), Ås, Norway
| |
Collapse
|
28
|
Shin WG, Ramos-Mendez J, Tran NH, Okada S, Perrot Y, Villagrasa C, Incerti S. Geant4-DNA simulation of the pre-chemical stage of water radiolysis and its impact on initial radiochemical yields. Phys Med 2021; 88:86-90. [PMID: 34198026 PMCID: PMC11152247 DOI: 10.1016/j.ejmp.2021.05.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/12/2021] [Accepted: 05/21/2021] [Indexed: 12/31/2022] Open
Abstract
This paper demonstrates the impact of the pre-chemical stage, especially the dissociation scheme and the associated probabilities, on water radiolysis simulation using the Geant4-DNA Monte Carlo track structure simulation toolkit. The models and parameters provided by TRACs have been collected and implemented into Geant4-DNA. In order to evaluate their influence on water radiolysis simulation, the radiochemical yields (G-values) are evaluated as a function of time and LET using the "chem6" Geant4-DNA example, and they are compared with published experimental and calculated data. The new pre-chemical models lead to a better agreement with literature data than the default pre-chemical models of Geant4-DNA, especially for OH radicals and H2O2. The revised chemistry constructor "G4EmDNAChemistry_option3" is available in Geant4-DNA version 10.7.
Collapse
Affiliation(s)
- Wook-Geun Shin
- UMR 5797, Bordeaux University, CNRS, CENBG, 33170 Gradignan, France; Department of Radiation Oncology, Seoul National University Hospital, 03080 Seoul, Republic of Korea; Biomedical Research Institute, Seoul National University Hospital, 03080 Seoul, Republic of Korea.
| | - Jose Ramos-Mendez
- Department of Radiation Oncology, University of California San Francisco, San Francisco 94143, CA, United States
| | - Ngoc Hoang Tran
- UMR 5797, Bordeaux University, CNRS, CENBG, 33170 Gradignan, France
| | - Shogo Okada
- KEK, 1-1, Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Yann Perrot
- IRSN, Institut de Radioprotection et de Sûreté Nucléaire, BP17, 92262 Fontenay-aux-Roses, France
| | - Carmen Villagrasa
- IRSN, Institut de Radioprotection et de Sûreté Nucléaire, BP17, 92262 Fontenay-aux-Roses, France
| | | |
Collapse
|
29
|
Ilyas AM, Alam MK, Musah JD, Yang M, Roy VAL, Lam YW, Lau C. CHO cell dysfunction due to radiation-induced bystander signals observed by real-time electrical impedance measurement. Biosens Bioelectron 2021; 181:113142. [PMID: 33752028 DOI: 10.1016/j.bios.2021.113142] [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: 11/12/2020] [Revised: 02/22/2021] [Accepted: 03/01/2021] [Indexed: 11/30/2022]
Abstract
Radiation-induced bystander effects (RIBE) have raised many concerns about radiation safety and protection. In RIBE, unirradiated cells receive signals from irradiated cells and exhibit irradiation effects. Until now, most RIBE studies have been based on morphological and biochemical characterization. However, research on the impact of RIBE on biophysical properties of cells has been lagging. Non-invasive indium tin oxide (ITO)-based impedance systems have been used as bioimpedance sensors for monitoring cell behaviors. This powerful technique has not been applied to RIBE research. In this work, we employed an electrical cell-ITO substrate impedance system (ECIIS) to study the RIBE on Chinese hamster ovary (CHO) cells. The bioimpedance of bystander CHO cells (BCHO), alpha(α)-particle (Am-241) irradiated CHO (ICHO), and untreated/unirradiated CHO (UCHO) cells were monitored with a sampling interval of 8 s over a period of 24 h. Media from ICHO cells exposed to different radiation doses (0.3 nGy, 0.5 nGy, and 0.7 nGy) were used to investigate the radiation dose dependence of BCHO cells' impedance. In parallel, we imaged the cells at times where impedance changes were observed. By analyzing the changes in absolute impedance and cell size/cell number with time, we observed that BCHO cells mimicked ICHO cells in terms of modification in cell morphology and proliferation rate. Furthermore, these effects appeared to be time-dependent and inversely proportional to the radiation dose. Hence, this approach allows a label-free study of cellular responses to RIBE with high sensitivity and temporal resolution and can provide crucial insights into the RIBE mechanism.
Collapse
Affiliation(s)
- A M Ilyas
- Department of Physics, City University of Hong Kong, Kowloon 999077, Hong Kong, China; Department of Physics, Federal University Oye-Ekiti, Ekiti State 3600001, Nigeria.
| | - Md Kowsar Alam
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon 999077, Hong Kong, China; Department of Physics, University of Chittagong, Chittagong 4331, Bangladesh
| | - Jamal-Deen Musah
- Department of Material Science and Engineering, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Kowloon 999077, Hong Kong, China
| | - Mengsu Yang
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon 999077, Hong Kong, China
| | - Vellaisamy A L Roy
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Yun Wah Lam
- Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong, China
| | - Condon Lau
- Department of Physics, City University of Hong Kong, Kowloon 999077, Hong Kong, China
| |
Collapse
|
30
|
Nakamura Y, Soma T, Izumi K, Sakai Y, Ushijima H, Kudo S, Saito Y, Kageyama Y. Screening of chronic radiation proctitis and colorectal cancer using periodic total colonoscopy after external beam radiation therapy for prostate cancer. Jpn J Clin Oncol 2021; 51:1298-1302. [PMID: 33889961 DOI: 10.1093/jjco/hyab056] [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: 11/18/2020] [Accepted: 04/04/2021] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE To investigate the incidence of colorectal cancer and chronic radiation proctitis after prostate radiotherapy using periodic total colonoscopy screening. METHODS From February 2013 to January 2018, 270 patients who underwent external beam radiation therapy for prostate cancer were advised to receive periodic total colonoscopy screening annually. We evaluated the incidence and characteristics of colorectal cancer and chronic radiation proctitis. RESULTS First, second, third, fourth and fifth total colonoscopy were performed in 256 (95%), 151 (56%), 60 (22%), 23 (8.5%) and 7 (2.6%) patients at a median of 14, 31, 42, 54 and 72 months after radiotherapy, respectively. The prevalence proportion of colorectal cancer in the first colonoscopy since radiotherapy was 3.9%. Twelve (4.4%) patients were diagnosed with colorectal cancer, including four invasive cancers, during a follow-up period. Eight of these 12 patients had not experienced rectal bleeding. The median time to diagnosis of colorectal cancer was 21 months. Chronic radiation proctitis was observed in 136 (50%) patients, including 67 (25%) patients with symptomatic bleeding. CONCLUSIONS The high detection rate of asymptomatic radiation proctitis suggests the utility of total colonoscopy to screen for early-stage colorectal cancer prior to or following radiotherapy for prostate cancer. Considering the longevity after localized prostate cancer treatment, the awareness of chronic radiation-induced proctitis and the risk of colorectal cancer masked by bleeding is needed in treatment decision -making.
Collapse
Affiliation(s)
- Yuki Nakamura
- Department of Urology, Saitama Cancer Center, Saitama, Japan
| | - Takahiko Soma
- Department of Urology, Saitama Cancer Center, Saitama, Japan
| | - Keita Izumi
- Department of Urology, Saitama Cancer Center, Saitama, Japan
| | - Yasuyuki Sakai
- Department of Urology, Saitama Cancer Center, Saitama, Japan
| | - Hiroki Ushijima
- Department of Radiation Oncology, Saitama Cancer Center, Saitama, Japan
| | - Shigehiro Kudo
- Department of Radiation Oncology, Saitama Cancer Center, Saitama, Japan
| | - Yoshihiro Saito
- Department of Radiation Oncology, Saitama Cancer Center, Saitama, Japan
| | - Yukio Kageyama
- Department of Urology, Saitama Cancer Center, Saitama, Japan
| |
Collapse
|
31
|
Nantavithya C, Paulino AC, Liao K, Woodhouse KD, McGovern SL, Grosshans DR, McAleer MF, Khatua S, Chintagumpala MM, Majd N, Zaky W, Yeboa DN. Observed-to-expected incidence ratios of second malignant neoplasms after radiation therapy for medulloblastoma: A Surveillance, Epidemiology, and End Results analysis. Cancer 2021; 127:2368-2375. [PMID: 33721338 DOI: 10.1002/cncr.33507] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/03/2021] [Accepted: 02/08/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND The authors analyzed the incidence and types of second malignant neoplasms (SMNs) in patients treated for medulloblastoma. METHODS The authors compared the incidence of SMNs after radiotherapy (RT) for medulloblastoma in patients treated in 1973-2014 with the incidence in the general population with the multiple primary-standardized incidence ratio function of Surveillance, Epidemiology, and End Results 9. Observed-to-expected incidence (O/E) ratios and 95% confidence intervals (CIs) were reported for the entire cohort and by disease site according to age at diagnosis, treatment era, and receipt of chemotherapy. P values < .05 were considered statistically significant. RESULTS Of the 1294 patients with medulloblastoma who received RT, 68 developed 75 SMNs. The O/E ratio for SMNs among all patients was 4.49 (95% CI, 3.53-5.62; P < .05). The site at highest risk was the central nervous system (CNS; O/E, 40.62; 95% CI, 25.46-61.51), which was followed by the endocrine system (O/E, 15.95; 95% CI, 9.12-25.91), bone (O/E, 14.45; 95% CI, 1.75-52.21), soft tissues (O/E, 9.01; 95% CI, 1.09-32.56), the digestive system (O/E, 5.03; 95% CI, 2.51-9.00), and the lymphatic/hematopoietic system (O/E, 3.37; 95% CI, 1.35-6.94). The O/E ratio was higher for patients given chemotherapy and RT (O/E, 5.52; 95% CI, 3.75-7.83) than for those given RT only (O/E, 3.96; 95% CI, 2.88-5.32). CONCLUSIONS Patients with medulloblastoma are at elevated risk for SMNs in comparison with the general population. Variations in O/E for SMNs by organ systems were found for treatment modality, age at diagnosis, and time of diagnosis. The most common site, the CNS, was involved more often in younger patients and those given chemotherapy with RT.
Collapse
Affiliation(s)
- Chonnipa Nantavithya
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Division of Radiation and Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Arnold C Paulino
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kaiping Liao
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kristina D Woodhouse
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Susan L McGovern
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - David R Grosshans
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mary F McAleer
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Soumen Khatua
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Murali M Chintagumpala
- Department of Pediatrics, Texas Children's Hospital, Houston, Texas.,Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Nazanin Majd
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Wafik Zaky
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Debra N Yeboa
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, Texas
| |
Collapse
|
32
|
Kumari N, Raghavan SC. G-quadruplex DNA structures and their relevance in radioprotection. Biochim Biophys Acta Gen Subj 2021; 1865:129857. [PMID: 33508382 DOI: 10.1016/j.bbagen.2021.129857] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND DNA, the genetic material of most of the organisms, is the crucial element of life. Integrity of DNA needs to be maintained for transmission of genetic material from one generation to another. All organisms are constantly challenged by the environmental conditions which can lead to the induction of DNA damage. Ionizing radiation (IR) has been known to induce DNA damage and IR sensitivity varies among different organisms. The causes for differential radiosensitivity among various organisms have not been studied in great detail. SCOPE OF REVIEW We discuss DNA secondary structure formation, GC content of the genome, role of G-quadruplex formation, and its relationship with radiosensitivity of the genome. MAJOR CONCLUSION In Deinococcus radiodurans, the bacterium that exhibits maximum radio resistance, multiple G-quadruplex forming motifs are reported. In human cells, G-quadruplex formation led to differential radiosensitivity. In this article, we have discussed, the role of secondary DNA structure formation like G-quadruplex in shielding the genome from radiation and its implications in understanding evolution of radio protective effect of an organism. We also discuss role of GC content and its correlation with radio resistance. GENERAL SIGNIFICANCE This review provides an insight into the role of G-quadruplexes in providing differential radiosensitivity at different site of the genome and in different organisms. It further discusses the possibility of higher GC content contributing towards reduced radiosensitivity in different organisms, evolution of radiosensitivity, and regulation of multiple cellular processes.
Collapse
Affiliation(s)
- Nitu Kumari
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - Sathees C Raghavan
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India.
| |
Collapse
|
33
|
Fischietti M, Fratini E, Verzella D, Vecchiotti D, Capece D, Di Francesco B, Esposito G, Balata M, Ioannuci L, Sykes P, Satta L, Zazzeroni F, Tessitore A, Tabocchini MA, Alesse E. Low Radiation Environment Switches the Overgrowth-Induced Cell Apoptosis Toward Autophagy. Front Public Health 2021; 8:594789. [PMID: 33520915 PMCID: PMC7841963 DOI: 10.3389/fpubh.2020.594789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/26/2020] [Indexed: 12/26/2022] Open
Abstract
Low radiation doses can affect and modulate cell responses to various stress stimuli, resulting in perturbations leading to resistance or sensitivity to damage. To explore possible mechanisms taking place at an environmental radiation exposure, we set-up twin biological models, one growing in a low radiation environment (LRE) laboratory at the Gran Sasso National Laboratory, and one growing in a reference radiation environment (RRE) laboratory at the Italian National Health Institute (Istituto Superiore di Sanità, ISS). Studies were performed on pKZ1 A11 mouse hybridoma cells, which are derived from the pKZ1 transgenic mouse model used to study the effects of low dose radiation, and focused on the analysis of cellular/molecular end-points, such as proliferation and expression of key proteins involved in stress response, apoptosis, and autophagy. Cells cultured up to 4 weeks in LRE showed no significant differences in proliferation rate compared to cells cultured in RRE. However, caspase-3 activation and PARP1 cleavage were observed in cells entering to an overgrowth state in RRE, indicating a triggering of apoptosis due to growth-stress conditions. Notably, in LRE conditions, cells responded to growth stress by switching toward autophagy. Interestingly, autophagic signaling induced by overgrowth in LRE correlated with activation of p53. Finally, the gamma component of environmental radiation did not significantly influence these biological responses since cells grown in LRE either in incubators with or without an iron shield did not modify their responses. Overall, in vitro data presented here suggest the hypothesis that environmental radiation contributes to the development and maintenance of balance and defense response in organisms.
Collapse
Affiliation(s)
- Mariafausta Fischietti
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome, Italy.,Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| | - Emiliano Fratini
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome, Italy.,Istituto Superiore di Sanità, National Center for Innovative Technologies in Public Health, Rome, Italy
| | - Daniela Verzella
- Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| | - Davide Vecchiotti
- Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| | - Daria Capece
- Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| | - Barbara Di Francesco
- Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| | - Giuseppe Esposito
- Istituto Superiore di Sanità, National Center for Innovative Technologies in Public Health, Rome, Italy.,Istituto Nazionale di Fisica Nucleare (INFN) Sezione Roma, Rome, Italy
| | - Marco Balata
- INFN-Gran Sasso National Laboratory, Assergi L'Aquila, Italy
| | - Luca Ioannuci
- INFN-Gran Sasso National Laboratory, Assergi L'Aquila, Italy
| | - Pamela Sykes
- Flinders Center for Innovation in Cancer, Flinders University, Adelaide, SA, Australia
| | - Luigi Satta
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome, Italy
| | - Francesca Zazzeroni
- Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| | - Alessandra Tessitore
- Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| | - Maria Antonella Tabocchini
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome, Italy.,Istituto Superiore di Sanità, National Center for Innovative Technologies in Public Health, Rome, Italy.,Istituto Nazionale di Fisica Nucleare (INFN) Sezione Roma, Rome, Italy
| | - Edoardo Alesse
- Department of Biotechnological and Applied Clinical Sciences, L'Aquila University, L'Aquila, Italy
| |
Collapse
|
34
|
Azadbakht J, Khoramian D, Lajevardi ZS, Elikaii F, Aflatoonian AH, Farhood B, Najafi M, Bagheri H. A review on chest CT scanning parameters implemented in COVID-19 patients: bringing low-dose CT protocols into play. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2021. [PMCID: PMC7784224 DOI: 10.1186/s43055-020-00400-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Abstract
Background
This study aims to review chest computed tomography (CT) scanning parameters which are utilized to evaluate patients for COVID-19-induced pneumonia. Also, some of radiation dose reduction techniques in CT would be mentioned, because using these techniques or low-dose protocol can decrease the radiation burden on the population.
Main body
Chest CT scan can play a key diagnostic role in COVID-19 patients. Additionally, it can be useful to monitor imaging changes during treatment. However, CT scan overuse during the COVID-19 pandemic raises concerns about radiation-induced adverse effects, both in patients and healthcare workers.
Conclusion
By evaluating the CT scanning parameters used in several studies, one can find the necessity for optimizing these parameters. It has been found that chest CT scan taken using low-dose CT protocol is a reliable diagnostic tool to detect COVID-19 pneumonia in daily practice. Moreover, the low-dose chest CT protocol results in a remarkable reduction (up to 89%) in the radiation dose compared to the standard-dose protocol, not lowering diagnostic accuracy of COVID-19-induced pneumonia in CT images. Therefore, its employment in the era of the COVID-19 pandemic is highly recommended.
Collapse
|
35
|
Ung MC, Garrett L, Dalke C, Leitner V, Dragosa D, Hladik D, Neff F, Wagner F, Zitzelsberger H, Miller G, de Angelis MH, Rößler U, Vogt Weisenhorn D, Wurst W, Graw J, Hölter SM. Dose-dependent long-term effects of a single radiation event on behaviour and glial cells. Int J Radiat Biol 2020; 97:156-169. [PMID: 33264576 DOI: 10.1080/09553002.2021.1857455] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE The increasing use of low-dose ionizing radiation in medicine requires a systematic study of its long-term effects on the brain, behaviour and its possible association with neurodegenerative disease vulnerability. Therefore, we analysed the long-term effects of a single low-dose irradiation exposure at 10 weeks of age compared to medium and higher doses on locomotor, emotion-related and sensorimotor behaviour in mice as well as on hippocampal glial cell populations. MATERIALS AND METHODS We determined the influence of radiation dose (0, 0.063, 0.125 or 0.5 Gy), time post-irradiation (4, 12 and 18 months p.i.), sex and genotype (wild type versus mice with Ercc2 DNA repair gene point mutation) on behaviour. RESULTS The high dose (0.5 Gy) had early-onset adverse effects at 4 months p.i. on sensorimotor recruitment and late-onset negative locomotor effects at 12 and 18 months p.i. Notably, the low dose (0.063 Gy) produced no early effects but subtle late-onset (18 months) protective effects on sensorimotor recruitment and exploratory behaviour. Quantification and morphological characterization of the microglial and the astrocytic cells of the dentate gyrus 24 months p.i. indicated heightened immune activity after high dose irradiation (0.125 and 0.5 Gy) while conversely, low dose (0.063 Gy) induced more neuroprotective features. CONCLUSION This is one of the first studies demonstrating such long-term and late-onset effects on brain and behaviour after a single radiation event in adulthood.
Collapse
Affiliation(s)
- Marie-Claire Ung
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Institute of Pathology, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Institute of Radiation Medicine, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Research Unit of Radiation Cytogenetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Lillian Garrett
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Claudia Dalke
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | | | - Daniel Dragosa
- Technische Universität München, Freising-Weihenstephan, Germany
| | - Daniela Hladik
- Technische Universität München, Freising-Weihenstephan, Germany
| | - Frauke Neff
- Institute of Pathology, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Florian Wagner
- Institute of Radiation Medicine, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Horst Zitzelsberger
- Research Unit of Radiation Cytogenetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Gregor Miller
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Martin Hrabĕ de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Department of Experimental Genetics, School of Life Science Weihenstephan, Technische Universität München, Freising, Germany.,German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Ute Rößler
- Federal Office for Radiation Protection, Department of Radiation Protection and Health, Neuherberg, Germany
| | - Daniela Vogt Weisenhorn
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Chair of Developmental Genetics, Faculty of Life and Food Sciences Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany.,German Center for Neurodegenerative Diseases (DZNE), Site Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Jochen Graw
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Sabine M Hölter
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.,Technische Universität München, Freising-Weihenstephan, Germany
| |
Collapse
|
36
|
Seppälä LK, Vettenranta K, Leinonen MK, Tommiska V, Madanat-Harjuoja LM. Preterm birth, neonatal therapies and the risk of childhood cancer. Int J Cancer 2020; 148:2139-2147. [PMID: 33128776 DOI: 10.1002/ijc.33376] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 11/09/2022]
Abstract
Our aim was to study the impact of preterm birth and neonatal therapies on the risk of childhood cancer using a nationwide, registry-based, case-control design. Combining population-based data from Finnish Medical Birth Registry (MBR) and Finnish Cancer Registry, we identified a total of 2029 patients diagnosed with cancer under the age of 20 years and 10 103 age- and sex-matched controls over the years 1996 to 2014. Information on the prenatal and perinatal conditions was obtained from the MBR. Gestational age was categorized into early (<32) and late preterm (32-36) and term (≥37 weeks). Cancer risk among the preterm compared to term neonates was evaluated using conditional logistic regression. We identified 141 cancers among the preterm (20.8% of 678) vs 1888 cancers in the term children (16.5% of 11 454). The risk of any cancer was increased for the preterm (odds ratio [OR] 1.28, 95% confidence interval [CI] 1.06-1.57), especially for the early preterm (OR 1.84, 95% CI 1.16-2.92). The risk of acute myeloid leukemia (AML; OR 2.33, 95% CI 1.25-4.37), retinoblastoma (OR 3.21, 95% CI 1.22-8.41) and germ cell tumors (OR 5.89, 95% CI 2.29-15.18) was increased among the preterm compared to term. Germ cell tumors were diagnosed at a significantly younger age among the preterm. Neonatal therapies, for example, mechanical ventilation, were associated with an increased risk of childhood cancer independent of gestational age. Preterm, especially early preterm birth, is associated with an increased risk of childhood cancer, especially germ cell tumors and AML. Respiratory distress requiring neonatal intervention also appears to be associated with an increased risk.
Collapse
Affiliation(s)
- Laura K Seppälä
- University of Helsinki, Children's Hospital, Pediatric Research Center, Helsinki, Finland
| | - Kim Vettenranta
- University of Helsinki, Children's Hospital, University of Helsinki and the Finnish Red Cross Blood Service, Helsinki, Finland
| | - Maarit K Leinonen
- Finnish Institute for Health and Welfare, Information Services Department, Unit of Statistics and Registers, Helsinki, Finland
| | - Viena Tommiska
- Helsinki Children's Hospital, Division of Neonatology, Helsinki, Finland
| | | |
Collapse
|
37
|
Zeidell AM, Ren T, Filston DS, Iqbal HF, Holland E, Bourland JD, Anthony JE, Jurchescu OD. Organic Field-Effect Transistors as Flexible, Tissue-Equivalent Radiation Dosimeters in Medical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001522. [PMID: 32999849 PMCID: PMC7509662 DOI: 10.1002/advs.202001522] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/04/2020] [Indexed: 05/07/2023]
Abstract
Radiation therapy is one of the most prevalent procedures for cancer treatment, but the risks of malignancies induced by peripheral beam in healthy tissues surrounding the target is high. Therefore, being able to accurately measure the exposure dose is a critical aspect of patient care. Here a radiation detector based on an organic field-effect transistor (RAD-OFET) is introduced, an in vivo dosimeter that can be placed directly on a patient's skin to validate in real time the dose being delivered and ensure that for nearby regions an acceptable level of low dose is being received. This device reduces the errors faced by current technologies in approximating the dose profile in a patient's body, is sensitive for doses relevant to radiation treatment procedures, and robust when incorporated into conformal large-area electronics. A model is proposed to describe the operation of RAD-OFETs, based on the interplay between charge photogeneration and trapping.
Collapse
Affiliation(s)
- Andrew M. Zeidell
- Department of Physics and Center for Functional MaterialsWake Forest UniversityWinston‐SalemNC27109USA
| | - Tong Ren
- Department of Radiation OncologyWake Forest School of MedicineWake Forest UniversityWinston SalemNC27157USA
| | - David S. Filston
- Department of Physics and Center for Functional MaterialsWake Forest UniversityWinston‐SalemNC27109USA
| | - Hamna F. Iqbal
- Department of Physics and Center for Functional MaterialsWake Forest UniversityWinston‐SalemNC27109USA
| | - Emma Holland
- University of Kentucky Center for Applied Energy ResearchLexingtonKY40511USA
| | - J. Daniel Bourland
- Department of Radiation OncologyWake Forest School of MedicineWake Forest UniversityWinston SalemNC27157USA
| | - John E. Anthony
- University of Kentucky Center for Applied Energy ResearchLexingtonKY40511USA
| | - Oana D. Jurchescu
- Department of Physics and Center for Functional MaterialsWake Forest UniversityWinston‐SalemNC27109USA
| |
Collapse
|
38
|
Osman Hamid H. Evaluation of patient radiation dose in routine radiographic examinations in Saudi Arabia. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.108883] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
39
|
Lin X, Wang X, Tian H. Oral delivery of WR-1065 by ROS-responsive PEG-PCL nanoparticles for radioprotection. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
40
|
Margin-Free Fractionated Stereotactic Radiation Therapy for Pediatric Brain Tumors. Pract Radiat Oncol 2020; 10:e485-e494. [PMID: 32428764 DOI: 10.1016/j.prro.2020.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 02/14/2020] [Accepted: 03/09/2020] [Indexed: 01/05/2023]
Abstract
PURPOSE Conventional radiation therapy (RT) to pediatric brain tumors exposes a large volume of normal brain to unwarranted radiation causing late toxicity. We hypothesized that in well demarcated pediatric tumors lacking microscopic extensions, fractionated stereotactic RT (SRT), without target volume expansions, can reduce high dose normal tissue irradiation without affecting local control. METHODS AND MATERIALS Between 2008 and 2017, 52 pediatric patients with brain tumors were treated using the CyberKnife (CK) with SRT in 180 to 200 cGy per fraction. Thirty representative cases were retrospectively planned for intensity modulated RT (IMRT) with 4-mm PTV expansion. We calculated the volume of normal tissue within the high or intermediate dose region adjacent to the target. Plan quality and radiation dose-volume dosimetry parameters were compared between CK and IMRT plans. We also reported overall survival, progression-free survival (PFS), and local control. RESULTS Tumors included low-grade gliomas (n = 28), craniopharyngiomas (n = 16), and ependymomas (n = 8). The volumes of normal tissue receiving high (≥80% of prescription dose or ≥40 Gy) or intermediate (80% > dose ≥50% of the prescription dose or 40 Gy > dose ≥25 Gy) dose were significantly smaller with CK versus IMRT plans (P < .0001 for all comparisons). With a median follow-up of 3.7 years (range, 0.1-9.0), 3-year local control was 92% for all patients. Eight failures occurred: 1 craniopharyngioma (marginal), 2 ependymomas (both in-field), and 5 low-grade gliomas (2 in-field, 1 marginal, and 2 distant). CONCLUSIONS Fractionated SRT using CK without target volume expansion appears to reduce the volume of irradiated tissue without majorly compromising local control in pediatric demarcated brain tumors. These results are hypothesis generating and should be tested and validated in prospective studies.
Collapse
|
41
|
Radiation Therapy for Pediatric Brain Tumors using Robotic Radiation Delivery System and Intensity Modulated Proton Therapy. Pract Radiat Oncol 2020; 10:e173-e182. [DOI: 10.1016/j.prro.2019.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 08/09/2019] [Accepted: 09/11/2019] [Indexed: 12/25/2022]
|
42
|
Ulibarri N, Tracy CL, McCarty RJ. Cleanup and Complexity: Nuclear and Industrial Contamination at The Santa Susana Field Laboratory, California. ENVIRONMENTAL MANAGEMENT 2020; 65:257-271. [PMID: 31828410 DOI: 10.1007/s00267-019-01239-7] [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: 06/18/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
Environmental contamination, a legacy of industrial activity borne by numerous sites around the world, poses health risks for surrounding communities and presents serious cleanup challenges. One such site, the Santa Susana Field Laboratory (SSFL), served as an aerospace and nuclear energy research facility for over 50 years, during which time radioactive and other hazardous materials were unintentionally and intentionally released into the surrounding environment. These releases, including the partial meltdown of a sodium reactor, were hidden from the public for three decades. The site is now located in suburban Los Angeles, with 730,000 people living within a 10-mile radius. This paper evaluates the technical and social challenges underlying site cleanup at SSFL, including a complex geological setting, uncertain contaminant information, and a convoluted, evolving regulatory framework. These challenges, paired with historical secrecy on the part of responsible organizations and unclear layers of responsibility, have led to uncertainty and distrust within the surrounding community. Lessons learned from other remediated sites are assessed and recommendations for the SSFL cleanup are provided.
Collapse
Affiliation(s)
- Nicola Ulibarri
- Department of Urban Planning and Public Policy, University of California, Irvine, 300 Social Ecology I, Irvine, CA, 92697, USA.
| | - Cameron L Tracy
- Belfer Center for Science and International Affairs, Kennedy School of Government, Harvard University, 79 John F. Kennedy St, Cambridge, MA, 02138, USA
| | - Ryan J McCarty
- Department of Chemistry, University of California, Irvine, Natural Sciences II, Irvine, CA, 92697, USA
| |
Collapse
|
43
|
Differential Repair Protein Recruitment at Sites of Clustered and Isolated DNA Double-Strand Breaks Produced by High-Energy Heavy Ions. Sci Rep 2020; 10:1443. [PMID: 31996740 PMCID: PMC6989695 DOI: 10.1038/s41598-020-58084-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/06/2020] [Indexed: 01/17/2023] Open
Abstract
DNA double-strand break (DSB) repair is crucial to maintain genomic stability. The fidelity of the repair depends on the complexity of the lesion, with clustered DSBs being more difficult to repair than isolated breaks. Using live cell imaging of heavy ion tracks produced at a high-energy particle accelerator we visualised simultaneously the recruitment of different proteins at individual sites of complex and simple DSBs in human cells. NBS1 and 53BP1 were recruited in a few seconds to complex DSBs, but in 40% of the isolated DSBs the recruitment was delayed approximately 5 min. Using base excision repair (BER) inhibitors we demonstrate that some simple DSBs are generated by enzymatic processing of base damage, while BER did not affect the complex DSBs. The results show that DSB processing and repair kinetics are dependent on the complexity of the breaks and can be different even for the same clastogenic agent.
Collapse
|
44
|
Angiosarcomaafteradjuvantradiotherapy in high-risksquamouscell carcinoma of the vulva: a case report. MENOPAUSE REVIEW 2020; 18:230-232. [PMID: 32132888 PMCID: PMC7045357 DOI: 10.5114/pm.2019.93114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/16/2019] [Indexed: 12/22/2022]
Abstract
Squamous cell carcinoma of the vulva represents 3-5% of gynecological cancers. The incidence is higher in postmenopausal patients; the mean age of women with vulvar cancer is between 64 and 70 years. Radiotherapy plays an increasing role in the treatment of high-risk squamous cell carcinoma of the vulva; associated with surgery it significantly improves prognosis but is also associated with serious late side-effects, such as secondary malignancies. We describe a case of a 75-year-old woman who underwent deep total vulvectomy with inguinal-femoral lymphadenectomy for high-risk, keratinizing variant HPV-negative, squamous cell carcinoma of the vulva, followed by adjuvant concomitant chemo-radiotherapy, at the University Hospital of Pisa in February 2013. Five years later she developed a very large angiosarcoma in the right abdominal wall, at the edge of the previous radiotherapy field, and underwent radical surgery. After four months, she developed bone metastasis of angiosarcoma, also treated with surgery. This experience shows that the use of new technologies allows the delivery of high doses of radiotherapy, significantly correlated with a better prognosis, but also associated with fortunately rare morbidity, such as radiation-induced angiosarcoma. Due to the presence of long, mostly post-menopausal survivors among irradiated patients, screening for second malignancies must be developed for selected high-risk survivor groups.
Collapse
|
45
|
G-quadruplex Structures Contribute to Differential Radiosensitivity of the Human Genome. iScience 2019; 21:288-307. [PMID: 31678912 PMCID: PMC6838516 DOI: 10.1016/j.isci.2019.10.033] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 06/12/2019] [Accepted: 10/16/2019] [Indexed: 02/04/2023] Open
Abstract
DNA, the fundamental unit of human cell, generally exists in Watson-Crick base-paired B-DNA form. Often, DNA folds into non-B forms, such as four-stranded G-quadruplexes. It is generally believed that ionizing radiation (IR) induces DNA strand-breaks in a random manner. Here, we show that regions of DNA enriched in G-quadruplex structures are less sensitive to IR compared with B-DNA in vitro and inside cells. Planar G-quartet of G4-DNA is shielded from IR-induced free radicals, unlike single- and double-stranded DNA. Whole-genome sequence analysis and real-time PCR reveal that genomic regions abundant in G4-DNA are protected from radiation-induced breaks and can be modulated by G4 stabilizers. Thus, our results reveal that formation of G4 structures contribute toward differential radiosensitivity of the human genome. G4 DNA contributes to genome-wide radioprotection and is modulated by G4 resolvases Radiation causes minimal damage at the G4 structures at telomeres Formation of G4 DNA contributes toward differential radiosensitivity of human genome Planar quartet of G4 DNA is shielded from IR-induced free radicals and thus DNA breaks
Collapse
|
46
|
Mondal T, Nautiyal A, Agrawal M, Mitra D, Goel A, Kumar Dey S. 18F-FDG-induced DNA damage, chromosomal aberrations, and toxicity in V79 lung fibroblast cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2019; 847:503105. [PMID: 31699341 DOI: 10.1016/j.mrgentox.2019.503105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 10/04/2019] [Accepted: 10/05/2019] [Indexed: 12/20/2022]
Abstract
18F-FDG PET/CT imaging is used in the diagnosis of diseases, including cancers. The principal photons used for imaging are 511 ke V gamma photons resulting from positron annihilation. The absorbed dose varies among body organs, depending on administered radioactivity and biological clearance. We have attempted to evaluate DNA double-strand breaks (DSB) and toxicity induced in V79 lung fibroblast cells in vitro by 18F-FDG, at doses which might result from PET procedures. Cells were irradiated by 18F-FDG at doses (14.51 and 26.86 mGy), comparable to absorbed doses received by critical organs during PET procedures. The biological endpoints measured were formation of γ-H2AX foci, mitochondrial stress, chromosomal aberrations, and cell cycle perturbation. Irradiation induced DSB (γH2AX assay), mitochondrial depolarization, and both chromosome and chromatid types of aberrations. At higher radiation doses, increased aneuploidy and reduced mitotic activity were also seen. Thus, significant biological effects were observed at the doses delivered by the 18F-FDG exposure and the effects increased with dose.
Collapse
Affiliation(s)
- Tanmoy Mondal
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Sector-I, Salt Lake, Kolkata, 700 064, West Bengal, India
| | - Amit Nautiyal
- Institute of Nuclear Medicine & Molecular Imaging, Advance Medicare & Research Institute, P-4&5, Gariahat Road Block-A, Scheme-L11, Dhakuria, Kolkata, 700029, West Bengal, India
| | - Milee Agrawal
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Sector-I, Salt Lake, Kolkata, 700 064, West Bengal, India
| | - Deepanjan Mitra
- Institute of Nuclear Medicine & Molecular Imaging, Advance Medicare & Research Institute, P-4&5, Gariahat Road Block-A, Scheme-L11, Dhakuria, Kolkata, 700029, West Bengal, India
| | - Alpana Goel
- Amity Institute of Nuclear Science & Technology, Amity University, Noida, Delhi, India
| | - Subrata Kumar Dey
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, BF-142, Sector-I, Salt Lake, Kolkata, 700 064, West Bengal, India.
| |
Collapse
|
47
|
A Case of Histiocytic Sarcoma Arising from Mycosis Fungoides. Case Rep Hematol 2019; 2019:7834728. [PMID: 31687231 PMCID: PMC6794960 DOI: 10.1155/2019/7834728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 08/15/2019] [Accepted: 09/11/2019] [Indexed: 11/25/2022] Open
Abstract
Histiocytic sarcoma (HS) is an uncommon malignant neoplasm arising from mature histiocytes and most commonly characterized by the immunophenotypic expression of CD68, CD163, or lysozyme. Although rare, HS arising as a second primary malignancy following hematolymphoid neoplasms has been reported. To our knowledge, this is the first reported case of HS occurring as a second primary malignancy in a patient with mycosis fungoides (MF), with the retained immunophenotype markers CD30 and CD4.
Collapse
|
48
|
Hatano Y, Konaka Y, Shimoyachi H, Kenmotsu T, Oya Y, Nakamura H. Kinetics of double strand breaks of DNA in tritiated water evaluated using single molecule observation method. FUSION ENGINEERING AND DESIGN 2019. [DOI: 10.1016/j.fusengdes.2018.11.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
49
|
Ren X, Huo M, Wang M, Lin H, Zhang X, Yin J, Chen Y, Chen H. Highly Catalytic Niobium Carbide (MXene) Promotes Hematopoietic Recovery after Radiation by Free Radical Scavenging. ACS NANO 2019; 13:6438-6454. [PMID: 31180624 DOI: 10.1021/acsnano.8b09327] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Ionizing radiation (IR) has been extensively used in industry and radiotherapy, but IR exposure from nuclear or radiological accidents often causes serious health effects in an exposed individual, and its application in radiotherapy inevitably brings undesirable damage to normal tissues. In this work, we have developed ultrathin two-dimensional (2D) niobium carbide (Nb2C) MXene as a radioprotectant and explored its application in scavenging free radicals against IR. The 2D Nb2C MXene features intriguing antioxidant properties in effectively eliminating hydrogen peroxide (H2O2), hydroxyl radicals (•OH), and superoxide radicals (O2•-). Pretreatment with biocompatible polyvinylpyrrolidone (PVP)-functionalized Nb2C nanosheets (Nb2C-PVP NSs) significantly reduces IR-induced production of reactive oxygen species (ROS), resulting in enhanced cell viability in vitro. A single intravenous injection of Nb2C-PVP significantly enhances the survival rate of 5 and 6.5 Gy irradiated mice to 100% and 81.25%, respectively, and significantly increases bone marrow mononuclear cells after IR. Critically, Nb2C-PVP reverses the damage of the hematopoietic system in irradiated mice. Single administration of Nb2C-PVP significantly increases superoxide dismutase (SOD) activities, decreases malondialdehyde levels, and thereby reduces IR-induced pathological damage in the testis, small intestine, lung, and liver of 5 Gy irradiated mice. Importantly, Nb2C-PVP is almost completely eliminated from the mouse body on day 14 post treatment, and no obvious toxicities are observed during the 30-day post treatment period. Our study pioneers the application of 2D MXenes with intrinsic radioprotective nature in vivo.
Collapse
Affiliation(s)
- Xiangyi Ren
- Department of Radiation Biology, Institute of Radiation Medicine , Fudan University , Shanghai , 200032 , People's Republic of China
| | - Minfeng Huo
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai , 200050 , People's Republic of China
- University of Chinese Academy of Science , Beijing , 100049 , People's Republic of China
| | - Mengmeng Wang
- Department of Radiation Biology, Institute of Radiation Medicine , Fudan University , Shanghai , 200032 , People's Republic of China
| | - Han Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai , 200050 , People's Republic of China
- University of Chinese Academy of Science , Beijing , 100049 , People's Republic of China
| | - Xuxia Zhang
- Department of Radiation Biology, Institute of Radiation Medicine , Fudan University , Shanghai , 200032 , People's Republic of China
| | - Jun Yin
- Department of Radiation Biology, Institute of Radiation Medicine , Fudan University , Shanghai , 200032 , People's Republic of China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure , Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai , 200050 , People's Republic of China
| | - Honghong Chen
- Department of Radiation Biology, Institute of Radiation Medicine , Fudan University , Shanghai , 200032 , People's Republic of China
| |
Collapse
|
50
|
O'Leary VB, Ovsepian SV, Smida J, Atkinson MJ. PARTICLE - The RNA podium for genomic silencers. J Cell Physiol 2019; 234:19464-19470. [PMID: 31058319 DOI: 10.1002/jcp.28739] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 03/25/2019] [Accepted: 04/10/2019] [Indexed: 12/31/2022]
Abstract
Radiation exposure can evoke cellular stress responses. Emerging recognition that long non-coding RNAs (lncRNAs) act as regulators of gene expression has broadened the spectra of molecules controlling the genomic landscape upon alterations in environmental conditions. Knowledge of the mechanisms responding to low dose irradiation (LDR) exposure is very limited yet most likely involve subtle ancillary molecular pathways other than those protecting the cell from direct cellular damage. The discovery that transcription of the lncRNA PARTICLE (promoter of MAT2A- antisense radiation-induced circulating lncRNA; PARTICL) becomes dramatically instigated within a day after LDR exposure introduced a new gene regulator onto the biological landscape. PARTICLE affords an RNA binding platform for genomic silencers such as DNA methyltransferase 1 and histone tri-methyltransferases to reign in the expression of tumor suppressors such as its neighboring MAT2A in cis as well as WWOX in trans. In silico evidence offers scope to speculate that PARTICLE exploits the abundance of Hoogsten bonds that exist throughout mammalian genomes for triplex formation, presumably a vital feature within this RNA silencer. PARTICLE may provide a buffering riboswitch platform for S-adenosylmethionine. The correlation of PARTICLE triplex formation sites within tumor suppressor genes and their abundance throughout the genome at cancer-related hotspots offers an insight into potential avenues worth exploring in future therapeutic endeavors.
Collapse
Affiliation(s)
- Valerie B O'Leary
- Department of Medical Genetics, Third Faculty of Medicine, Charles University, Ruská, Prague, Czech Republic.,Institute of Radiation Biology, Helmholtz Zentrum Munich - German Research Center for Environmental Health, Neuherberg, Bavaria, Germany
| | - Saak V Ovsepian
- RP1 Experimental Neurobiology, National Institute of Mental Health, Klecany, Czech Republic
| | - Jan Smida
- Institute of Radiation Biology, Helmholtz Zentrum Munich - German Research Center for Environmental Health, Neuherberg, Bavaria, Germany
| | - Michael J Atkinson
- Institute of Radiation Biology, Helmholtz Zentrum Munich - German Research Center for Environmental Health, Neuherberg, Bavaria, Germany.,Chair of Radiation Biology, Technical University Munich, Munich, Germany
| |
Collapse
|