1
|
Zhao XY, Liu YY, Li LP, Liu JW. [Circ_0026134 regulates the miR-1270/GRB2 pathway to affect the radiosensitivity of hepatoma cells]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:40-48. [PMID: 38320790 DOI: 10.3760/cma.j.cn501113-20231129-00250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Objective: To investigate whether circular RNA 0026134 (circ_0026134) affects the radiosensitivity of hepatoma cells by regulating the miR-1270/growth factor receptor-bound protein 2 (GRB2) pathway. Methods: Real-time quantitative PCR (RT-qPCR) was used to detect the expression levels of circ_0026134, miR-1270, and GRB2 in liver cancer tissues and cells. Bioinformatics analysis, a dual-luciferase gene reporter assay, RT-qPCR, and western blot were used to analyze the targeting relationships between circ_0026134 and miR-1270 and miR-1270 and GRB2. The effects of circ_0026134, miR-1270, and GRB2 expression combined with 6 Gy on the proliferation, invasion, migration, and apoptosis of Huh7 and SK-HEP-1 cells were detected by a cell counting kit, a transwell assay, a scratch assay, and flow cytometry. The tumorigenesis experiment was used to detect the effect of silencing circ_0026134 in nude mice. Measurement data are expressed as the mean ± standard deviation. The independent sample t-test was used for comparison between two groups, and the one-way analysis of variance and SNK-q test were used for comparison between multiple groups. P < 0.05 was considered statistically significant. Results: The expression levels of circ_0026134 and GRB2, Huh7, and SK-HEP-1 cells in liver cancer tissues were significantly increased, while the expression levels of miR-1270 were significantly decreased (P < 0.05). The expression of circ_0026134 in Huh7 and SK-HEP-1 decreased significantly after radiotherapy (P < 0.05). circ_0026134 binds directly to miR-1270 and negatively regulates miR-1270 expression (P < 0.05). miR-1270 binds directly to GRB2 and negatively regulates GRB2 expression (P < 0.05). 6 Gy radiation significantly inhibited the proliferation, migration, and invasion of Huh7 and SK-HEP-1 cells and induced apoptosis (P < 0.05). Silencing circ_0026134 or overexpression of miR-1270 significantly enhanced the anti-proliferation, anti-migration, invasion, and pro-apoptosis effects of 6 Gy treatment on hepatoma cells (P < 0.05). Inhibition of miR-1270 significantly weakened the effects of silencing circ_0026134 combined with 6 Gy radiation on proliferation, migration, invasion, and apoptosis of hepatoma cells (P < 0.05). Overexpression of GRB2 significantly weakened the effects of miR-1270 overexpression combined with 6 Gy radiation on proliferation, migration, invasion, and apoptosis of hepatoma cells (P < 0.05). circ_0026134 knockdown significantly delayed tumor growth in vivo (P < 0.05). Conclusion: Silencing circ_0026134 strengthens radiation treatment's anti-proliferation, anti-migration, invasion, and pro-apoptotic effects in hepatoma cells by negatively regulating the miR-1270/GRB2 pathway, thereby enhancing radiosensitivity.
Collapse
Affiliation(s)
- X Y Zhao
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
| | - Y Y Liu
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
| | - L P Li
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
| | - J W Liu
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
| |
Collapse
|
2
|
Thathamangalam Ananthanarayanan A, Raavi V, Srinivas Kondaveeti S, Ramachandran I, Perumal V. Insights on the Radiation-Induced Adaptive Response at the Cellular Level and Its Implications in Cancer Therapy. Cytogenet Genome Res 2023; 163:257-273. [PMID: 37906989 DOI: 10.1159/000534500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 10/05/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Development of resistance upon exposure to small doses of ionizing radiation followed by higher doses is known as radiation-induced adaptive response (RIAR). Traditionally, the induction of the RIAR phenomenon at the cellular level has been examined in cell lines, animal models, and epidemiological studies where people live in high natural background radiation. SUMMARY The primary intention of the earlier studies was to corroborate the existence of RIAR and the mechanism involved in mediating the response surveyed by exposure to a low dose of radiation (<500 mGy) as priming dose toward the radiation protection point of view. However, the investigation has shifted the focus to understand the relevance of this phenomenon at clinically relevant set-ups (high doses in the order of Gy) and can be exploited during radiotherapy as RIAR is considered a mechanism for the development of radioresistance. Although the knowledge of molecular mechanisms at the cellular level has evolved significantly in multi-fractionated radiotherapy regimes, its relevance in developing radioresistance at low doses remains elusive. The authors recapitulate the existing knowledge on RIAR at cellular levels, specifically after low-dose exposure as an adaptive dose, and discussed its potential implications in clinical radiotherapy outcomes. KEY MESSAGES Recent studies have contributed to understand the signaling molecules, pathways, and inhibitors to mitigate RIAR-mediated radiation resistance and persistent radio-tolerance at the cellular level. Monitoring the disease progression in tumor samples or liquid biopsies before, during, and after therapy with suitable biomarkers has been proposed as a strategy to translate the phenomena into clinical scenario.
Collapse
Affiliation(s)
| | - Venkateswarlu Raavi
- Department of Cell Biology and Molecular Genetics, Sri Devaraj Urs Academy of Higher Education and Research (Deemed to be University), Tamaka, Kolar, India
| | - Satish Srinivas Kondaveeti
- Department of Radiation Oncology, SRMC and RI, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Porur, Chennai, India
| | - Ilangovan Ramachandran
- Department of Endocrinology, Dr. ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, India
| | - Venkatachalam Perumal
- Department of Human Genetics, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Porur, Chennai, India
| |
Collapse
|
3
|
Sun M, Moquet J, Ellender M, Bouffler S, Badie C, Baldwin-Cleland R, Monahan K, Latchford A, Lloyd D, Clark S, Anyamene NA, Ainsbury E, Burling D. Potential risks associated with the use of ionizing radiation for imaging and treatment of colorectal cancer in Lynch syndrome patients. Fam Cancer 2023; 22:61-70. [PMID: 35718836 PMCID: PMC9829596 DOI: 10.1007/s10689-022-00299-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/29/2022] [Indexed: 01/13/2023]
Abstract
The aim of this review is to investigate the literature pertaining to the potential risks of low-dose ionizing radiation to Lynch syndrome patients by use of computed tomography (CT), either diagnostic CT colonography (CTC), standard staging CT or CT surveillance. Furthermore, this review explores the potential risks of using radiotherapy for treatment of rectal cancer in these patients. No data or longitudinal observational studies of the impact of radiation exposure on humans with Lynch syndrome were identified. Limited experimental studies utilizing cell lines and primary cells exposed to both low and high radiation doses have been carried out to help determine radio-sensitivity associated with DNA mismatch repair gene deficiency, the defining feature of Lynch syndrome. On balance, these studies suggest that mismatch repair deficient cells may be relatively radio-resistant (particularly for low dose rate exposures) with higher mutation rates, albeit no firm conclusions can be drawn. Mouse model studies, though, showed an increased risk of developing colorectal tumors in mismatch repair deficient mice exposed to radiation doses around 2 Gy. With appropriate ethical approval, further studies investigating radiation risks associated with CT imaging and radiotherapy relevant doses using cells/tissues derived from confirmed Lynch patients or genetically modified animal models are urgently required for future clinical guidance.
Collapse
Affiliation(s)
- Mingzhu Sun
- UK Health Security Agency, Department of Radiation Effects, RCEHD, Chilton, Didcot, OX11 0RQ, UK.
| | - Jayne Moquet
- UK Health Security Agency, Department of Radiation Effects, RCEHD, Chilton, Didcot, OX11 0RQ UK
| | - Michele Ellender
- UK Health Security Agency, Department of Radiation Effects, RCEHD, Chilton, Didcot, OX11 0RQ UK
| | - Simon Bouffler
- UK Health Security Agency, Department of Radiation Effects, RCEHD, Chilton, Didcot, OX11 0RQ UK
| | - Christophe Badie
- UK Health Security Agency, Department of Radiation Effects, RCEHD, Chilton, Didcot, OX11 0RQ UK ,Environmental Research Group Within the School of Public Health, Faculty of Medicine at Imperial College of Science, Technology and Medicine, London, W12 0BZ UK
| | - Rachel Baldwin-Cleland
- Intestinal Imaging Centre, St Mark’s Hospital, London North West University Healthcare NHS Trust, Watford Road, Harrow, HA1 3UJ UK
| | - Kevin Monahan
- Lynch Syndrome Clinic, Centre for Familial Intestinal Cancer, St Mark’s Hospital, London North West University Healthcare NHS Trust, Watford Road, Harrow, HA1 3UJ UK
| | - Andrew Latchford
- Lynch Syndrome Clinic, Centre for Familial Intestinal Cancer, St Mark’s Hospital, London North West University Healthcare NHS Trust, Watford Road, Harrow, HA1 3UJ UK
| | - David Lloyd
- UK Health Security Agency, Department of Radiation Effects, RCEHD, Chilton, Didcot, OX11 0RQ UK
| | - Susan Clark
- Lynch Syndrome Clinic, Centre for Familial Intestinal Cancer, St Mark’s Hospital, London North West University Healthcare NHS Trust, Watford Road, Harrow, HA1 3UJ UK
| | - Nicola A. Anyamene
- East and North Hertfordshire NHS Trust, Mount Vernon Cancer Centre, Rickmansworth Road, Northwood, HA6 2RN Middlesex UK
| | - Elizabeth Ainsbury
- UK Health Security Agency, Department of Radiation Effects, RCEHD, Chilton, Didcot, OX11 0RQ UK ,Environmental Research Group Within the School of Public Health, Faculty of Medicine at Imperial College of Science, Technology and Medicine, London, W12 0BZ UK
| | - David Burling
- Intestinal Imaging Centre, St Mark’s Hospital, London North West University Healthcare NHS Trust, Watford Road, Harrow, HA1 3UJ UK
| |
Collapse
|
4
|
Luo H, Wang X, Wang Y, Dan Q, Ge H. Mannose enhances the radio-sensitivity of esophageal squamous cell carcinoma with low MPI expression by suppressing glycolysis. Discov Oncol 2022; 13:1. [PMID: 35201482 PMCID: PMC8777573 DOI: 10.1007/s12672-021-00447-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/08/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND To investigate the effect of mannose on radio-sensitivity of human esophageal squamous cell carcinoma (ESCC) cell line and its possible mechanism. METHODS The expression of mannose phosphate isomerase (MPI) in human esophageal cancer cell lines were detected by Western blot. The inhibitory effect of mannose on human esophageal cancer cell lines were observed by MTT assay. Plate clone formation assay was performed to investigate the efficacy of mannose on radio-sensitivity of human esophageal cancer cells. The apoptosis rates of tumor cells treated with mannose and/or radiation therapy was calculated by flow cytometry. Furthermore, we analyzed intracellular metabolites using liquid chromatography mass spectrometry to identify selective sugar metabolites. RESULTS MPI expression was various in human esophageal cancer cells. KYSE70 cells was associated with the highest MPI expression whereas KYSE450 cells had the lowest MPI expression level. When administrated with 11.1 mM/L mannose, the same inhibitory effect was observed in both KYSE70 and KYSE450 cell lines. Moreover, the inhibitory effect was significant on KYSE450 cell lines with an increased mannose concentration. The application of 11.1 mM/L mannose could significantly enhance the radio-sensitivity of KYSE450 cell line; and tumor cell apoptosis rate was also increased. However, there was limited efficacy of mannose on the radio-sensitivity and apoptosis rate of KYSE70 cell line. Additionally, intracellular metabolites analyzation revealed that glycolysis could be disturbed by mannose when combined with radiation therapy in esophageal cancer cells. CONCLUSION In esophageal cancer cell lines with low MPI expression, the administration of mannose was associated with enhanced radio-sensitivity.
Collapse
Affiliation(s)
- Hui Luo
- Department of Radiation Oncology, The Affiliated Cancer Hospital of Zhengzhou University, No. 127 Dongming Road, Zhengzhou, 450008, Henan, China
| | - Xiaohui Wang
- Department of Radiation Oncology, The Affiliated Cancer Hospital of Zhengzhou University, No. 127 Dongming Road, Zhengzhou, 450008, Henan, China
| | - Yunhan Wang
- Department of Radiation Oncology, The Affiliated Cancer Hospital of Zhengzhou University, No. 127 Dongming Road, Zhengzhou, 450008, Henan, China
| | - Qinfu Dan
- Department of Radiation Oncology, The Affiliated Cancer Hospital of Zhengzhou University, No. 127 Dongming Road, Zhengzhou, 450008, Henan, China
| | - Hong Ge
- Department of Radiation Oncology, The Affiliated Cancer Hospital of Zhengzhou University, No. 127 Dongming Road, Zhengzhou, 450008, Henan, China.
| |
Collapse
|
5
|
Shen J, Liu J, Li H, Bai L, Du Z, Geng R, Cao J, Sun P, Tang Z. Explore association of genes in PDL1/PD1 pathway to radiotherapy survival benefit based on interaction model strategy. Radiat Oncol 2021; 16:223. [PMID: 34794456 PMCID: PMC8600865 DOI: 10.1186/s13014-021-01951-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 11/08/2021] [Indexed: 02/25/2023] Open
Abstract
Purpose To explore the association of genes in “PD-L1 expression and PD-1 check point pathway in cancer” to radiotherapy survival benefit. Methods and materials Gene expression data and clinical information of cancers were downloaded from TCGA. Radiotherapy survival benefit was defined based on interaction model. Fast backward multivariate Cox regression was performed using stacking multiple interpolation data to identify radio-sensitive (RS) genes. Results Among the 73 genes in PD-L1/PD-1 pathway, we identified 24 RS genes in BRCA data set, 25 RS genes in STAD data set and 20 RS genes in HNSC data set, with some crossover genes. Theoretically, there are two types of RS genes. The expression level of Type I RS genes did not affect patients' overall survival (OS), but when receiving radiotherapy, patients with different expression level of Type I RS genes had varied survival benefit. Oppositely, Type II RS genes affected patients' OS. And when receiving radiotherapy, those with lower OS could benefit a lot. Type II RS genes in BRCA had strong positive correlation and closely biological interactions. When performing cluster analysis using these related Type II RS genes, patients could be divided into RS group and non-RS group in BRCA and METABRIC data sets. Conclusions Our study explored potential radio-sensitive biomarkers of several main cancer types in an important tumor immune checkpoint pathway and revealed a strong association between this pathway and radiotherapy survival benefit. New types of RS genes could be identified based on expanded definition to RS genes. Supplementary Information The online version contains supplementary material available at 10.1186/s13014-021-01951-x.
Collapse
Affiliation(s)
- Junjie Shen
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Jingfang Liu
- Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, 215123, China
| | - Huijun Li
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Lu Bai
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Zixuan Du
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Ruirui Geng
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Jianping Cao
- School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215006, China
| | - Peng Sun
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, 215123, China.
| | - Zaixiang Tang
- Department of Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215123, China. .,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China.
| |
Collapse
|
6
|
Liu B, Li H, Liu X, Li F, Chen W, Kuang Y, Zhao X, Li L, Yu B, Jin X, Li Q. CircZNF208 enhances the sensitivity to X-rays instead of carbon-ions through the miR-7-5p /SNCA signal axis in non-small-cell lung cancer cells. Cell Signal 2021; 84:110012. [PMID: 33892093 DOI: 10.1016/j.cellsig.2021.110012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/14/2021] [Accepted: 04/17/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Mounting evidence suggests that circular RNAs (circRNAs) are closely related to the regulation of gene expression during tumour development. However, the role of circRNAs in modulating the radiosensitivity of non-small cell lung cancer (NSCLC) cells has not been explored. METHODS Transcriptome sequencing was used to explore the expression profiles of circRNAs in NSCLC. The expression level of circRNAs was changed by inducing instantaneous knockdown or overexpression. Changes in proliferation and radiosensitivity of NSCLC cells were investigated using CCK-8, EDU, and clonal survivals. RESULTS By analysing the circRNA expression profile of NSCLC cells, we found that circRNA ZNF208 (circZNF208) was significantly upregulated in a radioresistant NSCLC cell line (A549-R11), which was acquired from the parental NSCLC cell line A549. Knockout experiments indicated that circZNF208 enhanced the radiosensitivity of A549 and A549-R11 cells to X-rays. Mechanistically, circZNF208 upregulated SNCA expression by acting as a sponge of miR-7-5p and subsequently promoted the resistance of NSCLC cells to low linear energy transfer (LET) X-rays. However, this effect was not observed in NSCLC cells exposed to high-LET carbon ions. CONCLUSIONS Knockdown of circZNF208 altered the radiosensitivity of patients with NSCLC to X-rays but did not significantly change the sensitivity to carbon ions. Therefore, circZNF208 might serve as a potential biomarker and therapeutic target for NSCLC treatment with radiotherapy of different modalities.
Collapse
Affiliation(s)
- Bingtao Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongbin Li
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Xiongxiong Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Feifei Li
- Northwest Normal University, Lanzhou, Gansu, China
| | - Weiqiang Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanbei Kuang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Linying Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Boyi Yu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaodong Jin
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Qiang Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China; Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
7
|
Jiang Y, Jin S, Tan S, Xue Y, Cao X. Long noncoding RNA NEAT1 regulates radio-sensitivity via microRNA-27b-3p in gastric cancer. Cancer Cell Int 2020; 20:581. [PMID: 33292252 PMCID: PMC7716475 DOI: 10.1186/s12935-020-01655-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 11/16/2020] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Long noncoding RNA nuclear-enriched abundant transcript 1 (NEAT1) exhibits an oncogenic role in multiple cancers, including gastric cancer (GC). But, the functions of NEAT1 in modulating radio-sensitivity of GC and its potential molecular mechanisms have not been totally elucidated. METHODS qRT-PCR was performed to detect the expressions of NEAT1 and microRNA-27b-3p (miR-27b-3p). Kaplan-Meier survival curves for NEAT1 expression in GC created using KM Plotter. Colony formation assay was used to determine the survival fraction. Cell apoptosis was evaluated by flow cytometry. Luciferase reporter assay was used to verify the relationship between miR-27b-3p and NEAT1. RESULTS NEAT1 was highly expressed while miR-27b-3p was downregulated in GC tissues and cells. NEAT1 was negatively correlated with that of miR-27b-3p and associated with poor overall survival. Moreover, NEAT1 and miR-27b-3p varied inversely after radiation in GC tissues and cells. Loss of NEAT1 or upregulation of miR-27b-3p increased the effect of radiation on cell survival fraction inhibition and apoptosis promotion. In addition, NEAT1 negatively regulated the expression of miR-27b-3p in GC cells. Interestingly, the depletion of miR-27b-3p dramatically attenuated the NEAT1 knockdown-mediated function in AGS and MKN-45 cells treated with radiation in vitro. Similarly, downregulation of NEAT1 enhanced the radiation-mediated inhibition of tumor growth, which was mitigated by decrease of miR-27b-3p. CONCLUSION NEAT1 depletion enhanced radio-sensitivity of GC by negatively regulating miR-27b-3p in vitro and in vivo.
Collapse
Affiliation(s)
- Ying Jiang
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Shan Jin
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Shisheng Tan
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Yingbo Xue
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Xue Cao
- Department of Oncology, The People's Hospital of Guizhou, No. 83, Zhongshan East Road, Guiyang, 550002, Guizhou, China.
| |
Collapse
|
8
|
Lin J, Liu Z, Liao S, Li E, Wu X, Zeng W. Elevation of long non-coding RNA GAS5 and knockdown of microRNA-21 up-regulate RECK expression to enhance esophageal squamous cell carcinoma cell radio-sensitivity after radiotherapy. Genomics 2019; 112:2173-2185. [PMID: 31866421 DOI: 10.1016/j.ygeno.2019.12.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 12/04/2019] [Accepted: 12/18/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Lately, lncRNAs have been proposed to function in the radio-sensitivity of tumor cells, yet the role of lncRNA GAS5 in that of esophageal squamous cell carcinoma (ESCC) has scarcely been studied. This study aims to examine GAS5's effects on ESCC cell radio-sensitivity. METHODS GAS5, miR-21 and RECK expression in radiation-sensitive and radiation-resistant ESCC tissues, and TE-1 and TE-1-R cells was determined. TE-1 and TE-1-R cells were treated with pcDNA-GAS5 or miR-21 inhibitors to figure out their roles in ESCC cell proliferation, radio-sensitivity, and apoptosis via gain- and loss-of-function experiments. RESULTS We found underexpressed GAS5 and RECK, and overexpressed miR-21 in ESCC. GAS5 elevation and miR-21 inhibition reduced viability and the colony formation ability, and enhanced the apoptosis of ESCC cells under radiation. CONCLUSION Our study reveals that GAS5 elevation up-regulates RECK expression by down-regulating miR-21 to increase ESCC cell apoptosis after radiation therapy, thus enhancing cell radio-sensitivity.
Collapse
Affiliation(s)
- Jing Lin
- Department of Oncology, The First Affiliated Hospital of Shantou Univresity Medical College, Shantou 515041, China.
| | - Zewa Liu
- Department of Oncology, The First Affiliated Hospital of Shantou Univresity Medical College, Shantou 515041, China
| | - Shasha Liao
- Department of Oncology, Shantou Longhu people's Hospital, Shantou 515041, Guangdong, China
| | - E Li
- Department of Oncology, Shantou Longhu people's Hospital, Shantou 515041, Guangdong, China
| | - Xiaohua Wu
- Department of Oncology, Shantou Longhu people's Hospital, Shantou 515041, Guangdong, China
| | - Wanting Zeng
- Division of Medical University College, London WCIE 6BT, United Kingdom
| |
Collapse
|
9
|
Momeny M, Esmaeili F, Hamzehlou S, Yousefi H, Javadikooshesh S, Vahdatirad V, Alishahi Z, Mousavipak SH, Bashash D, Dehpour AR, Tavangar SM, Tavakkoly-Bazzaz J, Haddad P, Kordbacheh F, Alimoghaddam K, Ghavamzadeh A, Ghaffari SH. The ERBB receptor inhibitor dacomitinib suppresses proliferation and invasion of pancreatic ductal adenocarcinoma cells. Cell Oncol (Dordr) 2019; 42:491-504. [PMID: 31025257 DOI: 10.1007/s13402-019-00448-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/16/2019] [Indexed: 12/23/2022] Open
Abstract
PURPOSE Pancreatic ductal adenocarcinoma (PDAC), the most common malignancy of the pancreas, is the fourth most common cause of cancer-related death in the USA. Local progression, early tumor dissemination and low efficacy of current treatments are the major reasons for its high mortality rate. The ERBB family is over-expressed in PDAC and plays essential roles in its tumorigenesis; however, single-targeted ERBB inhibitors have shown limited activity in this disease. Here, we examined the anti-tumor activity of dacomitinib, a pan-ERBB receptor inhibitor, on PDAC cells. METHODS Anti-proliferative effects of dacomitinib were determined using a cell proliferation assay and crystal violet staining. Annexin V/PI staining, radiation therapy and cell migration and invasion assays were carried out to examine the effects of dacomitinib on apoptosis, radio-sensitivity and cell motility, respectively. Quantitative reverse transcription-PCR (qRT-PCR) and Western blot analyses were applied to elucidate the molecular mechanisms underlying the anti-tumor activity of dacomitinib. RESULTS We found that dacomitinib diminished PDAC cell proliferation via inhibition of FOXM1 and its targets Aurora kinase B and cyclin B1. Moreover, we found that dacomitinib induced apoptosis and potentiated radio-sensitivity via inhibition of the anti-apoptotic proteins survivin and MCL1. Treatment with dacomitinib attenuated cell migration and invasion through inhibition of the epithelial-to-mesenchymal transition (EMT) markers ZEB1, Snail and N-cadherin. In contrast, we found that the anti-tumor activity of single-targeted ERBB agents including cetuximab (anti-EGFR mAb), trastuzumab (anti-HER2 mAb), H3.105.5 (anti-HER3 mAb) and erlotinib (EGFR small molecule inhibitor) were marginal. CONCLUSIONS Our findings indicate that dacomitinib-mediated blockade of the ERBB receptors yields advantages over single-targeted ERBB inhibition and provide a rationale for further investigation of the therapeutic potential of dacomitinib in the treatment of ERBB-driven PDAC.
Collapse
Affiliation(s)
- Majid Momeny
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland.
| | - Fatemeh Esmaeili
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sepideh Hamzehlou
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Yousefi
- Department of Biochemistry and Molecular Biology, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Sepehr Javadikooshesh
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vasimeh Vahdatirad
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zivar Alishahi
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh H Mousavipak
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, Faculty of Allied Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad R Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyyed M Tavangar
- Department of Pathology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Javad Tavakkoly-Bazzaz
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Peiman Haddad
- Radiation Oncology Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farzaneh Kordbacheh
- Cancer and Vascular Biology Group, ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Kamran Alimoghaddam
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ardeshir Ghavamzadeh
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed H Ghaffari
- Hematology/Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
10
|
Wu PK, Wang JY, Chen CF, Chao KY, Chang MC, Chen WM, Hung SC. Early Passage Mesenchymal Stem Cells Display Decreased Radiosensitivity and Increased DNA Repair Activity. Stem Cells Transl Med 2019; 6:1504-1514. [PMID: 28544661 PMCID: PMC5689774 DOI: 10.1002/sctm.15-0394] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 12/21/2016] [Indexed: 12/24/2022] Open
Abstract
Cell therapies using human mesenchymal stem cells (MSCs) have received much attention in the past decade. In pursuit of the therapeutic potential of MSCs, cell expansion is required to generate a great number of cells with desired phenotype and functionality. Long‐term expansion in vitro, however, can lead to altered functions. To explore the changes in DNA damage responses (DDR) in MSCs expanded, DDR pathways following irradiation were characterized in early‐ and late‐passage bone marrow MSCs. Seventy‐two hours after irradiation, the percentage of sub‐G1 cells in early‐passage MSCs did not change significantly. Reduced TUNEL staining was observed in early‐passage MSCs compared to late‐passage MSCs 4 h after irradiation. Comet assay also revealed that early‐passage MSCs were more resistant to irradiation or DNA damages induced by genotoxic agents than late‐passage MSCs. ATM phosphorylation and γ‐H2AX and phospho‐p53 increased in early‐passage MSCs while decreased in late‐passage MSCs. Through inhibition by KU55933, DDR pathway in early‐passage MSCs was shown to be ATM‐dependent. Higher levels of poly (ADP‐ribose) polymerase‐1 (PARP‐1) and PAR synthesis were observed in early‐passage MSCs than in late‐passage MSCs. Knockdown of PARP‐1 in early‐passage MSCs resulted in sensitization to irradiation‐induced apoptosis. Overexpression of PARP‐1 in late passage MSCs could render irradiation resistance. Lower activity of DDR in late‐passage MSCs was associated with rapid proteasomal degradation of PARP‐1. In conclusion, early‐passage MSCs are more irradiation‐resistant and have increased DDR activity involving PARP‐1, ATM and their downstream signals. Stem Cells Translational Medicine2017;6:1504–1514
Collapse
Affiliation(s)
- Po-Kuei Wu
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taiwan.,Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taiwan
| | - Jir-You Wang
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taiwan.,Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taiwan.,Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Cheng-Fong Chen
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taiwan.,Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taiwan
| | - Kuang-Yu Chao
- Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taiwan
| | - Ming-Chau Chang
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taiwan
| | - Wei-Ming Chen
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taiwan.,Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taiwan
| | - Shih-Chieh Hung
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taiwan.,Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.,Integrative Stem Cell Center, Chinese Medical University Hospital, Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| |
Collapse
|
11
|
Wang L, Peng X, Lu X, Wei Q, Chen M, Liu L. Inhibition of hsa_circ_0001313 (circCCDC66) induction enhances the radio-sensitivity of colon cancer cells via tumor suppressor miR-338-3p: Effects of cicr_0001313 on colon cancer radio-sensitivity. Pathol Res Pract 2018; 215:689-696. [PMID: 30630646 DOI: 10.1016/j.prp.2018.12.032] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/04/2018] [Accepted: 12/25/2018] [Indexed: 11/28/2022]
Abstract
Circular RNA_0001313 (circ_0001313), also known as circCCDC66, is a novel circRNA that recently found to be upregulated in colon cancer tissues and promote colon cancer progression. However, the role of circ_0001313 in regulating radio-sensitivity of colon cancer and its molecular mechanism remain undetermined. Here we found circ_0001313 was significantly upregulated and miR-338-3p was downregulated in radio-resistant colon cancer tissues compared to radio-sensitive tissues. Radiation treatment in colon cells triggered a remarkable upregulation of circ_0001313 and a downregulation of miR-338-3p. Knockdown of circ_0001313 reduced cell viability, colony formation rate and increased caspase-3 activity in colon cancer cells under irradiation. Moreover, circ_0001313 act as a sponge for miR-338-3p in colon cancer cells. Furthermore, miR-338-3p could reverse the effects of circ_0001313 knockdown on cell viability, colony formation, and caspase-3 activity. These findings revealed that knockdown of circ_0001313 could induce radio-sensitivity of colon cancer cells by negatively regulating miR-338-3p.
Collapse
Affiliation(s)
- Li Wang
- Department of General Surgery, Nanhua Hospital Affiliated to Nanhua University, Hengyang, Hunan Province, 421002, China; Department of Cancer Molecular Biology, School of Pharmacy, Soochow University, Suzhou, Jiangsu Province, 215006, China
| | - Xiuda Peng
- Department of General Surgery, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, 421001, China
| | - Xianzhou Lu
- Department of General Surgery, Nanhua Hospital Affiliated to Nanhua University, Hengyang, Hunan Province, 421002, China
| | - Qinglan Wei
- Department of Hand Surgery, Nanhua Hospital Affiliated to Nanhua University, Hengyang, Hunan Province, 421002, China
| | - Mingdao Chen
- Department of General Surgery, Nanhua Hospital Affiliated to Nanhua University, Hengyang, Hunan Province, 421002, China
| | - Longfei Liu
- Department of General Surgery, Nanhua Hospital Affiliated to Nanhua University, Hengyang, Hunan Province, 421002, China.
| |
Collapse
|
12
|
Gu MM, Li M, Gao D, Liu LH, Lang Y, Yang SM, Ou H, Huang B, Zhou PK, Shang ZF. The vanillin derivative 6-bromine-5-hydroxy-4-methoxybenzaldehyde induces aberrant mitotic progression and enhances radio-sensitivity accompanying suppression the expression of PLK1 in esophageal squamous cell carcinoma. Toxicol Appl Pharmacol 2018; 348:76-84. [PMID: 29679654 DOI: 10.1016/j.taap.2018.04.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 12/12/2022]
Abstract
Esophageal squamous cell carcinoma (ESCC) is the most common form of esophageal cancer in China. Since chemotherapy is the standard clinical intervention for advanced ESCC, the development of highly effective and minimal/non-toxic drugs is essential to improve the clinical outcome and prognosis of the patients. A novel derivative of vanillin, 6-bromine-5-hydroxy-4-methoxybenzaldehyde (BVAN08), has been recently reported to activate different cell death pathways in cancer cells. In this study, we demonstrate that BVAN08 exhibits a potent anti-proliferation effect on ESCC cells (TE-1 and ECA-109) by inhibiting the expression of PLK1, an important mitotic kinase. Consistent with this, BVAN08 induces mitotic arrest and chromosomal misalignment in ESCC cells. The disruption of microtubule nucleation around centrosomes is also observed in BVAN08 treated ESCC cells. Furthermore, BVAN08 enhances radio-sensitivity of ESCC cells by prolonging DNA damage repair. These findings underscore the potential value of BVAN08 in cancer therapeutics and demonstrate the underlying mechanism by which BVAN08 induces mitotic catastrophe and enhances radio-sensitivity in ESCC cells.
Collapse
Affiliation(s)
- Meng-Meng Gu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Ming Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Dexuan Gao
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, PR China
| | - Lang-Huan Liu
- School of Public Heath, Central South University, Changsha 410078, PR China
| | - Yue Lang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Si-Ming Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China
| | - Hongling Ou
- Department of Clinical Laboratory, The General Hospital of the PLA Rocket Force, Beijing 100088, PR China
| | - Bo Huang
- School of Public Heath, Central South University, Changsha 410078, PR China
| | - Ping-Kun Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China; Department of Radiation Toxicology and Oncology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, PR China.
| | - Zeng-Fu Shang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, PR China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, PR China.
| |
Collapse
|
13
|
Jeffree RA, Johansen MP. Experimental comparison of the bioaccumulation of anthropogenic radionuclides by egg and juvenile life stages of a small shark. J Environ Radioact 2017; 178-179:430-438. [PMID: 28336181 DOI: 10.1016/j.jenvrad.2017.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 02/01/2017] [Accepted: 02/06/2017] [Indexed: 06/06/2023]
Abstract
This study compared the bioaccumulation of anthropogenic nuclides (65Zn, 134Cs, 60Co and 241Am) between the egg and juvenile life stages of a small shark (Scyliorhinus canicula), based on previously published experimental data. Rates of accumulation over 15 days were derived and summed for the transfer pathways which were specific to these two life stages. Radionuclide transfers to the egg and its embryo & yolk were quantified for i) the maternal pathway following her uptake of radionuclides via food and seawater and ii) from seawater following its oviposition. For the juvenile, the transfer of radionuclides were measured for aqueous & dietary pathways. The results show that, compared to juveniles, eggs have equivalent rates of accumulation of 65Zn and 134Cs but enhanced accumulation of 241Am by a factor of five and of 60Co by two orders of magnitude. The radiological exposure of the embryo due to radionuclides maternally transferred to the embryo & yolk is also enhanced for the alpha-emitting 241Am. This enhanced accumulation of 241Am and 60Co, as well as the equivalent accumulation of 65Zn and 134Cs, suggest greater likely vulnerability to radiation damage in eggs as compared to juveniles. Radiological dose assessment confirmed highest doses to the egg which is predominantly due to accumulated 241Am.
Collapse
Affiliation(s)
- Ross A Jeffree
- Faculty of Science, C3, University of Technology, Sydney, P.O. Box 123, Broadway, NSW, 2007, Australia.
| | - Mathew P Johansen
- Australian Nuclear Science & Technology Organisation, Lucas Heights, NSW, Australia
| |
Collapse
|
14
|
Yu L, Sun Y, Li J, Wang Y, Zhu Y, Shi Y, Fan X, Zhou J, Bao Y, Xiao J. Silencing the Girdin gene enhances radio-sensitivity of hepatocellular carcinoma via suppression of glycolytic metabolism. J Exp Clin Cancer Res. 2017;36:110. [PMID: 28810896 PMCID: PMC5558715 DOI: 10.1186/s13046-017-0580-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 08/09/2017] [Indexed: 12/20/2022]
Abstract
Background Radiotherapy has been used increasingly to treat primary hepatocellular carcinoma. Clinically, the main cause of radiotherapy failure is cellular radioresistance, conferred via glycolytic metabolism. Our previous study demonstrated that Girdin is upregulated in primary hepatocellular carcinoma and promotes the invasion and metastasis of tumor cells. However, whether Girdin underlies the radio-sensitivity of hepatocellular carcinoma remains unclear. Methods A short hairpin RNA (shRNA) was used to silence CCDC88A (encoding Girdin), and real-time PCR was performed to determine CCDC88A mRNA expression. Then, cell proliferation, colony formation, flow cytometric, scratch, and transwell assays were to examine the influence of Girdin silencing on cellular radiosensitivity. Glycolysis assays were conducted to exam cell glycolysis process. Western blotting was performed to explore the signaling pathway downstream of Girdin. Finally, animal experiments were performed to demonstrate the effect of CCDC88A silencing on the radiosensitivity of hepatoma in vivo. Results shRNA-induced Girdin silencing suppressed glycolysis and enhanced the radio-sensitivity of hepatic cell lines, HepG2 and Huh-7. Furthermore, silencing of Girdin inhibited the PI3K/AKT/HIF-1α signaling pathway, which is a central regulator of glycolysis. Conclusion Girdin can regulate glycolysis in hepatocellular carcinoma cells through the PI3K/AKT/HIF-1α signaling pathway, which decreases the sensitivity of tumor cells to radiotherapy. Electronic supplementary material The online version of this article (doi:10.1186/s13046-017-0580-7) contains supplementary material, which is available to authorized users.
Collapse
|
15
|
Zhu CG, Zhang LS. [Effect of platycodin D on radiosensitivity of human hepatoma cell line and related mechanisms of action]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:458-462. [PMID: 28763865 DOI: 10.3760/cma.j.issn.1007-3418.2017.06.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of platycodin D on the radiosensitivity of human hepatoma cell lines HepG2 and SMMC-7721 and related mechanisms of action. Methods: MTT assay was used to analyze the effect of different concentrations of platycodin D with different treatment times on cell viability. The cells were pretreated with 5 μg/ml platycodin D for 24 hours followed by X-ray irradiation at different radiation doses. Colony-forming assay was used to measure the radiosensitizing effect of platycodin D on cells. The quasi-threshold dose (Dq), mean lethal dose (Do), extrapolation number (N), sensitizer enhancement ratio (SER), and survival fraction (SF) at different radiation doses were calculated, and the multi-target single-hit model was used to fit the cell survival curve according to the formula SF = l-(l-e(-D/D0))N. Flow cytometry was used to investigate the distribution of cell cycle, and Western blotting was used to measure the changes in the protein expression of phosphorylated phosphatidylinositol 3'-kinase (pPI3K), phosphorylated protein kinase (pAkt), nuclear factor-κB (NF-κB), and phosphorylated nuclear factor inhibiting protein (pIκBα). A one-way analysis of variance, the t-test, or the least significant difference test was used for statistical analysis based on the type of data. Results: Platycodin D reduced the viability of HepG2 and SMMC-7721 cells in a dose-dependent manner; the IC50 value for HepG2 cells was 24.2 ± 0.61 μg/ml at 24 hours and 7.68 ± 0.46 μg/ml at 48 hours, and that for SMMC-7721 cells was 23.8 ± 0.57 μg/ml at 24 hours and 8.63 ± 0.86 μg/mL at 48 hours. After the combined treatment with platycodin D and irradiation, there were significant reductions in Dq (P = 0.002), Do (P = 0.002), and N value (P = 0.003), the survival curve markedly shifted to the left, and SER was 1.347 ± 0.04 in HepG2 cells and 1.418 ± 0.05 in SMMC-7721 cells. In addition, platycodin D significantly inhibited the increase in the proportion of cells in G2/M phase, the increases in the protein expression of pPI3k (P = 0.002), pAkt (P = 0.003), and NF-κB (P = 0.002), and the reduction in the protein expression of pIκBα (P = 0.003). Conclusion: Platycodin D can increase the radiosensitivity of HepG2 or SMMC-7721 cells, possibly by enhancing the growth inhibition effect of irradiation and inhibiting the activation of the PI3k/Akt and NF-κB pathways.
Collapse
Affiliation(s)
- C G Zhu
- Department of Hematology and Oncology, Shimen County People's Hospital, Shimen Hunan 415300, China
| | - L S Zhang
- Department of Clinical Pharmacy, Shimen County People's Hospital, Shimen Hunan 415300, China
| |
Collapse
|
16
|
Zhu Y, Shi LY, Lei YM, Bao YH, Li ZY, Ding F, Zhu GT, Wang QQ, Huang CX. Radiosensitization effect of hsa-miR-138-2-3p on human laryngeal cancer stem cells. PeerJ 2017; 5:e3233. [PMID: 28533948 PMCID: PMC5436573 DOI: 10.7717/peerj.3233] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/27/2017] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Treatments that target cancer stem cells play an important role in the controlling and eliminating of tumor initiation as well as in development, progression, and chemotherapy/radiotherapy resistance. In our previous study, we cultured and harvested human laryngeal cancer stem cells (CSCs) and applied microRNA biochips to screen differentially expressed miRNAs that were related to radiation tolerance in irradiated human laryngeal CSCs. According to the predicted genes and pathways of differential miRNAs target, down-regulated expression of hsa-miR-138-2-3p under radiation was thought to play a key role in enhancing the radio-sensitivity in human laryngeal squamous cancer stem cells. METHOD To investigate the radiational enhancement of hsa-miR-138-2-3p, we transfected hsa-miR-138-2-3p mimics that were synthesized based on the sequences of hsa-miR-138-2-3p in vitrointo human laryngeal CSCs (Hep-2, M2e, and TU212 cell lines) to make hsa-miR-138-2-3p overexpressed, and the tumorous specialities of CSCs, like cell proliferation, invasion, apoptosis, cell cycle arrest, and DNA damage were evaluated by CCK-8 assay, clone formation assay, invasion assay, flow cytometry, and comet assay. Furthermore, we explored the signal transduction pathways that regulated the cancer stem cell initiation, development, invasion, apoptosis and cell cycle arrest, which were controlled by hsa-miR-138-2-3p. RESULT Overexpressed hsa-miR-138-2-3p played a key role in many anti-cancer biological processes in human laryngeal CSCs: (1) it decreased laryngeal CSCs proliferation and invasion in response to radiotherapy; (2) it increased the proportion of early and late apoptosis in laryngeal CSCs after radiation, raised G1 phase arrest in laryngeal CSCs after radiation, and decreased the proportion of S stage cells of cell cycle that were related to radio-resistance in laryngeal CSCs; (3) it down-regulated the expression of β-catenin in Wnt signal pathway that was related to the tolerance of laryngeal CSCs to radiotherapy; (4) it down-regulated the expression of YAP1 in Hippo signal pathway that regulated cell proliferation, invasion and apoptosis; (5) it up-regulated the expression of p38 and JNK1 in MAPK signal pathway that was concerned to radio-sensitivity. CONCLUSION In the present study, it was found that hsa-miR-138-2-3p regulated the Wnt/β-catenin pathways, the Hippo/YAP1 pathways, and the MAPK/p38/JNK1 pathways that were involved in cell proliferation, invasion, apoptosis, cell cycle arrest, radio-resistance and radio-sensitivity in laryngeal CSCs. These results will be useful for a better understanding of the cell biology of hsa-miR-138-2-3p in laryngeal CSCs, and for serving hsa-miR-138-2-3p as a promising biomarker and as a target for diagnosis and for novel anti-cancer therapies for laryngeal cancers.
Collapse
Affiliation(s)
- Ying Zhu
- First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Li-Yun Shi
- Department of Immunology, School of Medical and Life Science, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yan-Min Lei
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yan-Hong Bao
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhao-Yang Li
- Department of Oncology, Affiliated Hospital with Hangzhou Normal University School of Medicine, Hangzhou, China
| | - Fei Ding
- Department of Oncology, Affiliated Hospital with Hangzhou Normal University School of Medicine, Hangzhou, China
| | - Gui-Ting Zhu
- Department of Oncology, Affiliated Hospital with Hangzhou Normal University School of Medicine, Hangzhou, China
| | - Qing-Qing Wang
- Institute of Immunology, Zhejiang University, Hangzhou, China
| | - Chang-Xin Huang
- Department of Oncology, Affiliated Hospital with Hangzhou Normal University School of Medicine, Hangzhou, China
| |
Collapse
|
17
|
Chang VHS, Tsai YC, Tsai YL, Peng SL, Chen SL, Chang TM, Yu WCY, Ch'ang HJ. Krüpple-like factor 10 regulates radio-sensitivity of pancreatic cancer via UV radiation resistance-associated gene. Radiother Oncol 2017; 122:476-484. [PMID: 28104298 DOI: 10.1016/j.radonc.2017.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 12/29/2016] [Accepted: 01/01/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND PURPOSE Krüpple-like factor 10 (Klf10), an early response gene of TGFβ, was reported to be a prognostic biomarker for pancreatic cancer survival. The role of Klf10 in predicting tumor response to cancer treatment is unknown. MATERIALS AND METHODS Genetically manipulated MiaPaCa and Panc-1 cells were established to evaluate clonogenic survival, autophagy, apoptosis and DNA repair after radiation. The interaction between Klf10 and UV radiation resistance-associated gene (UVRAG) was demonstrated by ChiP-PCR and luciferase reporter assay. Orthotopic murine tumor model and clinical specimens were used to evaluate radio-sensitivity of pancreatic cancer. RESULTS We found Klf10 silencing correlates with enhanced pancreatic cancer clonogenic survival and murine tumor growth after radiation. UVRAG was an essential down-stream mediator transcriptionally suppressed by Klf10. Silencing UVRAG mRNA in Klf10 depleted Panc-1 cells reversed the radio-resistant phenotypes including decreased apoptosis and enhanced DNA repair as well as autophagy. Metformin, an anti-diabetic agent, was found to increase Klf10 and suppress UVRAG expression to improve radiation cytotoxicity in pancreatic cancer. The predictive value of Klf10 in radiation response and the inverse correlation with UVRAG were confirmed in cohorts of pancreatic cancer patients. CONCLUSIONS Klf10 is a potential biomarker in predicting and sensitizing radiation effect in pancreatic cancer.
Collapse
Affiliation(s)
- Vincent Hung-Shu Chang
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chih Tsai
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County , Taiwan
| | - Ya-Li Tsai
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County , Taiwan
| | - Shu-Ling Peng
- Department of Pathology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Su-Liang Chen
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County , Taiwan
| | - Tsung Ming Chang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli County , Taiwan
| | - Winston Chun-Yuan Yu
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Hui-Ju Ch'ang
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Miaoli County , Taiwan; Department of Radiation Oncology, Taipei Municipal Wanfang Hospital, Taiwan.
| |
Collapse
|
18
|
Wang C, Qiao C. MicroRNA-190b confers radio-sensitivity through negative regulation of Bcl-2 in gastric cancer cells. Biotechnol Lett 2017; 39:485-490. [PMID: 28044223 DOI: 10.1007/s10529-016-2273-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 12/21/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To determine the role of miR-190b in radio-sensitivity of gastric cancer (GC). RESULTS In radio-resistant GC cells, down-regulation of miR-190b and up-regulation of Bcl-2 were observed. The protein expression of Bcl-2 was negatively regulated by miR-190b. Overexpression of miR-190b significantly decreased cell viability and enhanced radio-sensitivity of GC cells. Of note, these effects of miR-190b on GC cells radio-sensitivity were abolished by Bcl-2. CONCLUSION miR-190b confers radio-sensitivity of GC cells, possibly via negative regulation of Bcl-2.
Collapse
Affiliation(s)
- Changzheng Wang
- Department of Gastroenterology, The First People's Hospital of XiangYang, Hubei University of Medicine, No. 15, Jiefang Road, Fancheng District, Xiangyang, 441000, Hubei, People's Republic of China
| | - Chuanhu Qiao
- Department of Gastroenterology, The First People's Hospital of XiangYang, Hubei University of Medicine, No. 15, Jiefang Road, Fancheng District, Xiangyang, 441000, Hubei, People's Republic of China.
| |
Collapse
|
19
|
He Z, Liu Y, Xiao B, Qian X. miR-25 modulates NSCLC cell radio-sensitivity through directly inhibiting BTG2 expression. Biochem Biophys Res Commun 2015; 457:235-41. [PMID: 25576360 DOI: 10.1016/j.bbrc.2014.12.094] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 12/20/2014] [Indexed: 12/25/2022]
Abstract
A large proportion of the NSCLC patients were insensitive to radiotherapy, but the exact mechanism is still unclear. This study explored the role of miR-25 in regulating sensitivity of NSCLC cells to ionizing radiation (IR) and its downstream targets. Based on measurement in tumor samples from NSCLC patients, this study found that miR-25 expression is upregulated in both NSCLC and radio-resistant NSCLC patients compared the healthy and radio-sensitive controls. In addition, BTG expression was found negatively correlated with miR-25a expression in the both tissues and cells. By applying luciferase reporter assay, we verified two putative binding sites between miR-25 and BTG2. Therefore, BTG2 is a directly target of miR-25 in NSCLC cancer. By applying loss-and-gain function analysis in NSCLC cell lines, we demonstrated that miR-25-BTG2 axis could directly regulated BTG2 expression and affect radiotherapy sensitivity of NSCLC cells.
Collapse
Affiliation(s)
- Zhiwei He
- Pneumology Department, Civil Aviation General Hospital, Beijing 100123, China.
| | - Yi Liu
- Pneumology Department, Civil Aviation General Hospital, Beijing 100123, China.
| | - Bing Xiao
- Pneumology Department, Civil Aviation General Hospital, Beijing 100123, China.
| | - Xiaosen Qian
- Pneumology Department, Civil Aviation General Hospital, Beijing 100123, China.
| |
Collapse
|
20
|
Liu C, Zhou C, Gao F, Cai S, Zhang C, Zhao L, Zhao F, Cao F, Lin J, Yang Y, Ni J, Jia J, Wu W, Zhou L, Cui J, Zhang W, Li B, Cai J. MiR-34a in age and tissue related radio-sensitivity and serum miR-34a as a novel indicator of radiation injury. Int J Biol Sci 2011; 7:221-33. [PMID: 21448283 PMCID: PMC3053534 DOI: 10.7150/ijbs.7.221] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 03/01/2011] [Indexed: 11/16/2022] Open
Abstract
MiR-34a, a direct target of p53, has shown to exert potent anti-proliferative effects. It has also been found that miR-34a can be induced by irradiation in vitro and in vivo. However, the relationship between miR-34a and radio-sensitivity, and its potential diagnostic significance in radiation biology, remain unclear. This study found that differing responses to ionizing radiation (IR) of young and adult mice were related to miR-34a. First, we found that miR-34a could be induced in many organs by radiation of both young and adult mice. However, the level of miR-34a induced by young mice was much higher when compared to adult mice. Next, we found that miR-34a played a critical role in radio-sensitivity variations of different tissues by enhancing cell apoptosis and decreasing cell viability. We also found that the induction of miR-34a by radiation was in a p53 dependent manner and that one possible downstream target of miR-34a that lead to different radio-sensitivity was the anti-apoptosis molecular Bcl-2. However, over-expression of miR-34a and knockdown of Bcl-2 could significantly enhance the radio-sensitivity of different cells while inhibition of miR-34a could protect cells from radiation injury. Finally, we concluded that miR-34a could be stable in serum after IR and serve as a novel indicator of radiation injury. Taken together, this data strongly suggests that miR-34a may be a novel indicator, mediator and target of radiation injury, radio-sensitivity and radioprotection.
Collapse
Affiliation(s)
- Cong Liu
- Department of Radiation Medicine, Faculty of Naval Medicine, Second Military Medical University, Shanghai, PR China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Yi JY, Jung YJ, Choi SS, Chung E. TNF-alpha downregulates E-cadherin and sensitizes response to γ-irradiation in Caco-2 cells. Cancer Res Treat 2009; 41:164-70. [PMID: 19809566 DOI: 10.4143/crt.2009.41.3.164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Accepted: 06/01/2009] [Indexed: 12/17/2022] Open
Abstract
PURPOSE The purpose of the present study was to assess the biological effects of TNF-alpha in Caco-2 well-differentiated colon adenocarcinoma cells and to determine radiation sensitivity in order to develop TNF-alpha into a cancer therapeutic agent. MATERIALS AND METHODS A cell viability test was conducted via a colorimetric and colony forming assay after 1 day and 3 days of incubation with TNF-alpha. Western blotting analysis and immunofluorescence staining were conducted to explore TNF-alpha-induced morphological and molecular changes in the adhesion molecules, E-cadherin and claudin-4. The effects of γ-irradiation at a dose of 2 Gy on cell survival were evaluated by a clonogenic assay. The molecular changes in apoptosis-regulatory proteins were assessed by Western blotting. RESULTS Caco-2 cells were highly resistant to TNF alpha-induced cell death and 2 Gy of γ-irradiation. However, we observed the downregulation of the adherens junctional protein, E-cadherin and translocation of tight junctional protein, claudin-4 from the membrane to the cytosol induced by TNF-alpha treatment which would indicate cell-cell junction disruptions. These alterations of junctional proteins influenced the regulation of cell death in response to 2 Gy of γ-irradiation. The combined treatment of TNF-alpha with 2 Gy of γ-irradiation reduced the survival of Caco-2 cells by down-regulating bcl-xl and activating JNK pathways. CONCLUSION These results suggest that TNF-alpha might be potentially applied as a therapeutic agent in order to enhance sensitivity to 2 Gy of γ-irradiation administered in radiotherapy for the treatment of human colon cancer.
Collapse
Affiliation(s)
- Jae Youn Yi
- Lab of Modulation of Radiobiological Response, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | | | | | | |
Collapse
|