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Hu G, Che P, Deng L, Liu L, Liao J, Liu Q. MiR-378a-5p exerts a radiosensitizing effect on CRC through LRP8/β-catenin axis. Cancer Biol Ther 2024; 25:2308165. [PMID: 38389136 PMCID: PMC10896128 DOI: 10.1080/15384047.2024.2308165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND MiRNAs are closely related to tumor radiosensitivity. MiR-378a-5p level is down-regulated in colorectal cancer (CRC). Therefore, this study intends to explore the role of miR-378a-5p in CRC, especially radiosensitivity. METHODS The expression of miR-378a-5p was analyzed in CRC samples. CRC cell lines were treated with different doses of X-rays. Bioinformatics analysis, dual-luciferase reporter assay and RT-qPCR were used to detect the expressions and binding relationship of miR-378a-5p and low-density lipoprotein receptor-related protein 8 (LRP8). MiR-378a-5p inhibitor or/and siLRP8 were transfected into CRC cells with or without irradiation. Subsequently, clonogenic assay, flow cytometry and in vivo experiments including tumorigenesis assay, immunohistochemistry, RT-qPCR and Western blot were performed to clarify the role of miR-378a-5p/LRP8 axis in the radiosensitivity of CRC. RESULTS The down-regulated expression of miR-378a-5p in CRC is related to histological differentiation and tumor-node-metastasis (TNM) stage. After irradiation, the survival fraction of CRC cells was decreased, while the apoptotic rate and the level of miR-378a-5p were increased. Restrained miR-378a-5p repressed apoptosis and apoptosis-related protein expressions, yet promoted the proliferation and the radioresistance of cells by regulating β-catenin in CRC cells. LRP8 was highly expressed in CRC, and targeted by miR-378a-5p. SiLRP8 improved radiosensitivity and reversed the effect of miR-378a-5p down-regulation on CRC cells. Overexpressed miR-378a-5p and irradiation enhanced the level of miR-378a-5p, yet suppressed the expressions of Ki67 and LRP8 as well as tumorigenesis. CONCLUSION MiR-378a-5p may exert a radiosensitizing effect on CRC through the LRP8/β-catenin axis, which may be a new therapeutic target for CRC radioresistance.
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Affiliation(s)
- Guolin Hu
- Department of Oncology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
| | - Pengbiao Che
- Department of Ultrasound, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
| | - Ling Deng
- Department of Oncology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
| | - Lei Liu
- Department of Oncology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
| | - Jia Liao
- Department of Oncology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
| | - Qi Liu
- Department of Oncology, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, China
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2
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Mok ETY, Chitty JL, Cox TR. miRNAs in pancreatic cancer progression and metastasis. Clin Exp Metastasis 2024; 41:163-186. [PMID: 38240887 PMCID: PMC11213741 DOI: 10.1007/s10585-023-10256-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/06/2023] [Indexed: 06/30/2024]
Abstract
Small non-coding RNA or microRNA (miRNA) are critical regulators of eukaryotic cells. Dysregulation of miRNA expression and function has been linked to a variety of diseases including cancer. They play a complex role in cancers, having both tumour suppressor and promoter properties. In addition, a single miRNA can be involved in regulating several mRNAs or many miRNAs can regulate a single mRNA, therefore assessing these roles is essential to a better understanding in cancer initiation and development. Pancreatic cancer is a leading cause of cancer death worldwide, in part due to the lack of diagnostic tools and limited treatment options. The most common form of pancreatic cancer, pancreatic ductal adenocarcinoma (PDAC), is characterised by major genetic mutations that drive cancer initiation and progression. The regulation or interaction of miRNAs with these cancer driving mutations suggests a strong link between the two. Understanding this link between miRNA and PDAC progression may give rise to novel treatments or diagnostic tools. This review summarises the role of miRNAs in PDAC, the downstream signalling pathways that they play a role in, how these are being used and studied as therapeutic targets as well as prognostic/diagnostic tools to improve the clinical outcome of PDAC.
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Affiliation(s)
- Ellie T Y Mok
- Matrix & Metastasis Lab, Cancer Ecosystems Program, The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Darlinghurst, NSW, Australia
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, UNSW Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Jessica L Chitty
- Matrix & Metastasis Lab, Cancer Ecosystems Program, The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Darlinghurst, NSW, Australia.
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, UNSW Medicine and Health, UNSW Sydney, Sydney, NSW, Australia.
| | - Thomas R Cox
- Matrix & Metastasis Lab, Cancer Ecosystems Program, The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Darlinghurst, NSW, Australia.
- School of Clinical Medicine, St Vincent's Healthcare Clinical Campus, UNSW Medicine and Health, UNSW Sydney, Sydney, NSW, Australia.
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3
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Ding Y, Zhou G, Hu W. Epigenetic regulation of TGF-β pathway and its role in radiation response. Int J Radiat Biol 2024; 100:834-848. [PMID: 38506660 DOI: 10.1080/09553002.2024.2327395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 02/27/2024] [Indexed: 03/21/2024]
Abstract
PURPOSE Transforming growth factor (TGF-β) plays a dual role in tumor progression as well as a pivotal role in radiation response. TGF-β-related epigenetic regulations, including DNA methylation, histone modifications (including methylation, acetylation, phosphorylation, ubiquitination), chromatin remodeling and non-coding RNA regulation, have been found to affect the occurrence and development of tumors as well as their radiation response in multiple dimensions. Due to the significance of radiotherapy in tumor treatment and the essential roles of TGF-β signaling in radiation response, it is important to better understand the role of epigenetic regulation mechanisms mediated by TGF-β signaling pathways in radiation-induced targeted and non-targeted effects. CONCLUSIONS By revealing the epigenetic mechanism related to TGF-β-mediated radiation response, summarizing the existing relevant adjuvant strategies for radiotherapy based on TGF-β signaling, and discovering potential therapeutic targets, we hope to provide a new perspective for improving clinical treatment.
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Affiliation(s)
- Yunan Ding
- 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, 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, 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, China
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4
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Li G, Zhao D, Peng X, Zhao Y. Expression of miR-22 profiling in colorectal normal-adenoma-carcinoma sequence. Gene 2024; 894:147955. [PMID: 37925119 DOI: 10.1016/j.gene.2023.147955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/14/2023] [Accepted: 10/31/2023] [Indexed: 11/06/2023]
Abstract
Colorectal cancer (CRC) is the third most common cancer in the world. MiRNA-22 has emerged as a potential candidate with diagnostic significance; however, its expression profile across the normal-adenoma-carcinoma transition in colorectal remains unexplored. In this study, we evaluated serum miRNA-22 levels in patients with varying stages of CRC. The study cohort comprised 49 healthy controls, 50 patients with polyps, 51 individuals with colorectal adenoma (CRA), and 50 cases of CRC, confirmed through proctocolonoscopy and pathological biopsy. Real-time quantitative polymerase chain reaction was employed to validate the significantly differential expression of serum miRNA-22 among different stages of CRC progression. The 2-ΔΔCT method was utilized to assess the relative changes in serum miRNA-22 expression levels. Our results revealed no significant differences in gender, adenoma grade, location, or TNM classification stage in terms of serum miR-22 expression across the four groups. Notably, both the CRC and CRA groups exhibited higher miR-22 expression levels compared to the control group (p = 0.0001, p = 0.0004), with the CRA and CRC groups displaying higher expression levels than the polyp group (p = 0.02, p = 0.043). Ordered multicategorical logistic regression analysis model revealed the utilization of age, gender, smoking status, and miR-22 expression collectively exhibited the highest value for the area under the curve (AUC = 0.748) in the discrimination between individuals CRC and healthy. The independent factor of expression of miR-22 demonstrated the most notable predictive capacity (AUC = 0.753) when distinguishing between CRA and healthy individuals. Furthermore, the independent expression of miR-22 exhibited discernible potential (AUC = 0.654, 0.636) differentiation between polyps and CRA/ CRC. Notably, the factor of age displayed the most substantial discriminatory power (AUC = 0.741) when distinguishing between polyps and healthy individuals. Our findings provide supportive evidence for considering miR-22 as a potential biomarker for CRC early screening. Nonetheless, the molecular mechanisms of miR-22 regulation in colorectal lesions still need to be investigated.
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Affiliation(s)
- Gairui Li
- Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, Guangdong Province, China; Department of Epidemiology, School of Public Health, Harbin Medical University, Harbin, China
| | - Dan Zhao
- Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, Guangdong Province, China.
| | - Xiaolin Peng
- Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, Guangdong Province, China
| | - Yashuang Zhao
- Department of Epidemiology, School of Public Health, Harbin Medical University, Harbin, China.
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Kookli K, Soleimani KT, Amr EF, Ehymayed HM, Zabibah RS, Daminova SB, Saadh MJ, Alsaikhan F, Adil M, Ali MS, Mohtashami S, Akhavan-Sigari R. Role of microRNA-146a in cancer development by regulating apoptosis. Pathol Res Pract 2024; 254:155050. [PMID: 38199132 DOI: 10.1016/j.prp.2023.155050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 01/12/2024]
Abstract
Despite great advances in diagnostic and treatment options for cancer, like chemotherapy surgery, and radiation therapy it continues to remain a major global health concern. Further research is necessary to find new biomarkers and possible treatment methods for cancer. MicroRNAs (miRNAs), tiny non-coding RNAs found naturally in the body, can influence the activity of several target genes. These genes are often disturbed in diseases like cancer, which perturbs functions like differentiation, cell division, cell cycle, apoptosis and proliferation. MiR-146a is a commonly and widely used miRNA that is often overexpressed in malignant tumors. The expression of miR-146a has been correlated with many pathological and physiological changes in cancer cells, such as the regulation of various cell death paths. It's been established that the control of cell death pathways has a huge influence on cancer progression. To improve our understanding of the interrelationship between miRNAs and cancer cell apoptosis, it's necessary to explore the impact of miRNAs through the alteration in their expression levels. Research has demonstrated that the appearance and spread of cancer can be mitigated by moderating the expression of certain miRNA - a commencement of treatment that presents a hopeful approach in managing cancer. Consequently, it is essential to explore the implications of miR-146a with respect to inducing different forms of tumor cell death, and evaluate its potential to serve as a target for improved chemotherapy outcomes. Through this review, we provide an outline of miR-146a's biogenesis and function, as well as its significant involvement in apoptosis. As well, we investigate the effects of exosomal miR-146a on the promotion of apoptosis in cancer cells and look into how it could possibly help combat chemotherapeutic resistance.
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Affiliation(s)
- Keihan Kookli
- International Campus, Iran University of Medical Sciences, Tehran, Iran
| | | | - Eman Fathy Amr
- College of Nursing, National University of Science and Technology, Dhi Qar, Iraq
| | | | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Shakhnoza B Daminova
- Department of Prevention of Dental Diseases, Tashkent State Dental Institute, Tashkent, Uzbekistan; Department of Scientific affairs, Tashkent Medical Pediatric Institute, Bogishamol Street 223, Tashkent, Uzbekistan
| | - Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman 11831, Jordan
| | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia; School of Pharmacy, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia.
| | | | | | - Saghar Mohtashami
- University of California Los Angeles, School of Dentistry, Los Angeles, CA, USA.
| | - Reza Akhavan-Sigari
- Department of Neurosurgery, University Medical Center Tuebingen, Germany; Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw Management University Warsaw, Poland
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6
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Jiang T, Chen J, Wang Z, Wang X, Ma J, Zhao F, Huang C, Chen Y. miR-4796 enhances the sensitivity of breast cancer cells to ionising radiation by impairing the DNA repair pathway. Breast Cancer 2023; 30:691-702. [PMID: 37460775 DOI: 10.1007/s12282-023-01482-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 07/03/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND MicroRNAs (miRNAs) are important regulators of DNA damage response (DDR) through post-transcriptional regulation on their target genes, which are implicated in DDR and DNA repair (DR). In this study, we investigated the functional roles and target genes of miR-4796 and miR-1287 in breast cancer cells in response to radiation. The molecular mechanism of miR-4796 in regulating the radiosensitivity of breast cancer cells was also elucidated. METHODS Real-time polymerase chain reaction detected miR-4796 and miR-1287 expression; colony formation assay and irradiation therapy tumour xenograft in vivo examined radiosensitising effect; comet assay assessed DNA damage; immunofluorescence imaging determined the formation of γ-H2AX foci; targetscan and RegRNA predicted target mRNAs; luciferase reporter and mutation assays validated target genes; western blotting detected the expression of genes at the protein level; and flow cytometry quantified the activities of nonhomologous end-joining (NHEJ) and homologous recombination (HR). RESULTS The expressions of miR-4796 and miR-1287 were acutely fluctuated in response to ionising radiation. In the absence of radiation, overexpression of miR-1287 dramatically promoted growth of breast cancer cells in vitro and in vivo, whereas overexpression of miR-4796 did not affect cell growth. When under the treatment with radiation, overexpression of miR-4796 suppressed DR and sensitised cancer cells to radiation both in vitro and in vivo. However, such effect was only observed in cell assays in the overexpressed miR-1287 group, and not confirmed in vivo. We therefore further explored the molecular mechanism of action of miR-4796, and found that miR-4796 targeted multiple components of DDR and DR, including ATM, BRCA1, PARP and RAD51. Moreover, overexpression of miR-4796 inhibited the expression of these DDR components at the protein level. In addition, miR-4796 inhibited HR and NHEJ repair pathways and aggravated radiation-induced DNA damage. CONCLUSIONS The findings here suggest that miR-4796 can enhance radiation-induced cell death by directly targeting multiple DDR components, and repress NHEJ and HR DNA repair pathways. miR-4796 can act as an effective radiation sensitising agent.
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Affiliation(s)
- Ting Jiang
- Department of Cell Biology and Genetics, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Jinfeng Chen
- Target Discovery Institute, NDM Research Building, Oxford Ludwig Institute of Cancer Research, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - Zhenzhen Wang
- Department of Cell Biology and Genetics, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xiaofei Wang
- Biomedical Experimental Centre, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Jun Ma
- Department of Radiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Fei Zhao
- Department of Cell Biology and Genetics, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
- Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Chen Huang
- Department of Cell Biology and Genetics, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
- Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
| | - Yanke Chen
- Department of Cell Biology and Genetics, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
- Institute of Genetics and Developmental Biology, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
- Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.
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7
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Darvish L, Bahreyni-Toossi MT, Aghaee-Bakhtiari SH, Firouzjaei AA, Amraee A, Tarighatnia A, Azimian H. Inducing apoptosis by using microRNA in radio-resistant prostate cancer: an in-silico study with an in-vitro validation. Mol Biol Rep 2023:10.1007/s11033-023-08545-8. [PMID: 37294470 DOI: 10.1007/s11033-023-08545-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/22/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND One of the problems with radiation therapy (RT) is that prostate tumor cells are often radio-resistant, which results in treatment failure. This study aimed to determine the procedure involved in radio-resistant prostate cancer apoptosis. For a deeper insight, we devoted a novel bioinformatics approach to analyze the targeting between microRNAs and radio-resistant prostate cancer genes. METHOD This study uses the Tarbase, and the Mirtarbase databases as validated experimental databases and mirDIP as a predicted database to identify microRNAs that target radio-resistant anti-apoptotic genes. These genes are used to construct the radio-resistant prostate cancer genes network using the online tool STRING. The validation of causing apoptosis by using microRNA was confirmed with flow cytometry of Annexin V. RESULTS The anti-apoptotic gene of radio-resistant prostate cancer included BCL-2, MCL1, XIAP, STAT3, NOTCH1, REL, REL B, BIRC3, and AKT1 genes. These genes were identified as anti-apoptotic genes for radio-resistant prostate cancer. The crucial microRNA that knockdown all of these genes was hsa-miR-7-5p. The highest rate of apoptotic cells in a cell transfected with hsa-miR-7-5p was (32.90 ± 1.49), plenti III (21.99 ± 3.72), and the control group (5.08 ± 0.88) in 0 Gy (P < 0.001); also, this rate was in miR-7-5p (47.01 ± 2.48), plenti III (33.79 ± 3.40), and the control group (16.98 ± 3.11) (P < 0.001) for 4 Gy. CONCLUSION The use of this new treatment such as gene therapy to suppress genes involved in apoptosis can help to improve the treatment results and increase the quality of life of patients with prostate cancer.
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Affiliation(s)
- Leili Darvish
- Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Seyed Hamid Aghaee-Bakhtiari
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Bioinformatics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Ahmadizad Firouzjaei
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azadeh Amraee
- Department of Medical Physics, Faculty of Medicine, School of Medicine, Lorestan University of Medical Sciences, khorramabad, Iran
| | - Ali Tarighatnia
- Department of Medical Physics, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Hosein Azimian
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Tajik F, Alian F, Yousefi M, Azadfallah A, Hoseini A, Mohammadi F, Karimi-Dehkordi M, Alizadeh-Fanalou S. MicroRNA-372 acts as a double-edged sword in human cancers. Heliyon 2023; 9:e15991. [PMID: 37251909 PMCID: PMC10208947 DOI: 10.1016/j.heliyon.2023.e15991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023] Open
Abstract
MicroRNAs (miRNAs or miRs) are non-coding, single-stranded, endogenous RNAs that regulate various biological processes, most notably the pathophysiology of many human malignancies. It process is accomplished by binding to 3'-UTR mRNAs and controlling gene expression at the post-transcriptional level. As an oncogene, miRNAs can either accelerate cancer progression or slow it down as a tumor suppressor. MicroRNA-372 (miR-372) has been found to have an abnormal expression in numerous human malignancies, implying that the miRNA plays a role in carcinogenesis. It is both increased and downregulated in various cancers, and it serves as both a tumor suppressor and an oncogene. This study examines the functions of miR-372 as well as the LncRNA/CircRNA-miRNA-mRNA signaling pathways in various malignancies and analyses its potential prognostic, diagnostic, and therapeutic implications.
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Affiliation(s)
- Fatemeh Tajik
- Oncopathology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Alian
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Mohammad Yousefi
- Department of Medicine, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Azadfallah
- Department of Medicine, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Aref Hoseini
- Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Forogh Mohammadi
- Department of Veterinary, Agriculture Faculty, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Maryam Karimi-Dehkordi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Shahin Alizadeh-Fanalou
- Department of Clinical Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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9
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Chen X, Li C, Zeng R, Qiu L, Huang J, Wang N, Ren X, Lin X. Inhibition of miR-495-3p ameliorated sevoflurane induced damage through BDNF/ERK/CREB signaling pathways in HT22 cells. Transpl Immunol 2022; 75:101708. [PMID: 36103909 DOI: 10.1016/j.trim.2022.101708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/05/2022] [Accepted: 09/05/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Sevoflurane is used in anesthesia for surgery including in organ transplantation. We investigated the role of a non-coding single-stranded microRNA, miR-495-3p, in the sevoflurane-induced neurotoxicity using a mouse hippocampal neuronal cell line (HT22). METHODS The levels of miR-495-3p in sevoflurane-exposed mice and HT22 cells were determined via RT-qPCR. The role of miR-495-3p on cell viability and apoptosis were determined by CCK-8 and flow cytometric assay, respectively. Western blotting was explored to measure levels of Bax, Bcl-2, active caspase 3, BDNF, p-ERK/ERK and p-CREB/CREB in HT22 cells. ELISA assay was used to examine the levels of reactive oxygen species (ROS), superoxide dismutase (SOD) and glutathione peroxidase (GPX) in cells. Dual luciferase reporter assay was used to explore the interaction of miR-495-3p and BDNF. RESULTS The level of miR-495-3p was increased sevoflurane-exposed mice and in sevoflurane-treated HT22 cells. Downregulation of miR-495-3p inhibited sevoflurane-induced apoptosis and promoted cell proliferation by upregulating the proteins of Bcl-2 and downregulating the expressions of Bax and active caspase-3 in HT22 cells. In addition, inhibition of miR-495-3p alleviated sevoflurane-induced oxidative injuries in HT22 cells via decline of ROS and upregulation of SOD and GPX. MiR-495-3p can inhibit the ERK/CREB pathway by targeting BDNF. CONCLUSION Downregulation of miR-495-3p can decrease oxidative status in HT22 cells and alleviate sevoflurane-induced cytotoxicity through stimulating the BDNF/ERK/CREB pathway.
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Affiliation(s)
- Xiaomei Chen
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China.
| | - Chongyi Li
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China
| | - Rui Zeng
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China
| | - Ling Qiu
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China
| | - Jianhang Huang
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China
| | - Ning Wang
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China
| | - Xia Ren
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China
| | - Xingwu Lin
- Department of Anesthesiology, Affiliated Second Hospital of Xiamen University, 47 Shangteng Road, Fuzhou 350007, Fujian, China
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10
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The Expression Profile of miRNA in Glioma and the Role of miR-339-5p in Glioma. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4085039. [PMID: 35782062 PMCID: PMC9242769 DOI: 10.1155/2022/4085039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/22/2022] [Accepted: 05/31/2022] [Indexed: 12/26/2022]
Abstract
Objective To reveal the expression profile of miRNA in glioma and the effects of microRNA-339-5p (miR-339-5p) on glioma. Methods The glioma and normal tissues were randomly selected for miRNA gene chip detection and qRT-PCR verification. The U87 cells were separated into miR-NC, miR-339-5p mimic, and miR-339-5p suppressor group. Clonogenesis test, flow cell technique, Transwell, and cell scratch assay were utilized to verify the roles of miR-339-5p in cell proliferation, cell apoptosis, cell invasion, and cell migration. The epithelial-meso-transformation-associated proteins was verified by Western blot. Results A total of 49 miRNAs (16 upregulated and 33 downregulated) were differentially expressed in glioma tissues, and miR-339-5p was the most downregulated. The clone number, invasion number, and healing rate of cells in miR-339-5p mimic group were decreased compared with miR-NC group (P < 0.05); the clone quantity, invasion number, and healing rate of cells in miR-339-5p inhibitor group were increased compared with miR-NC group (P < 0.05). The apoptosis rate of human glioma U87 cells in miR-339-5P mimic group was compared with miR-NC group (P < 0.05); the apoptosis rate of human glioma U87 cells in miR-339-5p suppressor group decreased compared with miR-NC group (P < 0.05). Compared with miR-NC group, the protein expression of Twist, Snsnail, N-cadherin, and Vimentin in miR-339-5p mimic group was considerably decreased, whereas E-cadherin was elevated (P < 0.05). Compared with miR-NC group, the protein expression of Twist, Snsnail, N-cadherin, and Vimentin in miR-339-5p suppressor group was considerably increased, whereas E-cadherin was considerably decreased (P < 0.05). Conclusion Forty-nine glioma-related miRNAs were screened out, and miRNA expression was significantly different between glioma and normal tissues. The downregulated miR-339-5p in glioma can regulate the proliferative, apoptotic, invasive, and migratory abilities of glioma U87 cells and might suppress the occurrence and development of glioma.
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Liu J, Zhou R, Deng M, Xue N, Li T, Guo Y, Gao L, Fan R, Zhao D. RETRACTED ARTICLE: Long non-coding RNA DIO3OS binds to microRNA-130b to restore radiosensitivity in esophageal squamous cell carcinoma by upregulating PAX9. Cancer Gene Ther 2022; 29:870. [PMID: 34183777 DOI: 10.1038/s41417-021-00344-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 02/06/2023]
Affiliation(s)
- Junqi Liu
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Runze Zhou
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Ming Deng
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, P.R. China
| | - Nannan Xue
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Tingxuan Li
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Yuexin Guo
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Liang Gao
- Center of Experimental Orthopaedics, Saarland University, Homburg, Germany
| | - Ruitai Fan
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China.
| | - Di Zhao
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China.
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Yu YM, Xu L, Li HR, Zhang TQ, Qian G, Li LF, Wang MH. IARS2 regulates proliferation, migration, and angiogenesis of human umbilical vein endothelial cells. ACTA ACUST UNITED AC 2021; 67:555-560. [PMID: 34495060 DOI: 10.1590/1806-9282.20201024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 12/13/2020] [Indexed: 11/21/2022]
Abstract
OBJECTIVE In this study, we aimed at investigating the role of isoleucyl-tRNA synthetase in the growth, migration, and angiogenesis of human umbilical vein endothelial cells and the underlying molecular mechanism. METHODS To assess the role of isoleucyl-tRNA synthetase, we silenced isoleucyl-tRNA synthetase in human umbilical vein endothelial cells using lentiviral 2 specific short hairpin RNAs (short hairpin RNAs 1 and 2) and examined silencing efficiency using real time quantitative polymerase chain reaction and western blot analyses. Short hairpin RNAs 1-isoleucyl-tRNA synthetase had greater knockdown efficiency, it was used in the entire downstream analysis. Short hairpin RNAs 1- isoleucyl-tRNA synthetase silencing effects on cell proliferation, cell colony generation, cell migration, as well as angiogenesis were assessed using cell counting kit-8, colony development, cell migration, and angiogenesis tube formation assays, respectively. RESULTS Compared to the control group, anti-isoleucyl-tRNA synthetase short hairpin RNAs significantly silenced isoleucyl-tRNA synthetase expression in human umbilical vein endothelial cells, and suppressed their proliferation, migration, and angiogenic capacity. To characterize the underlying mechanism, western blot analyses showed that isoleucyl-tRNA synthetase knockdown suppressed phosphorylation of extracellular-regulated kinase ½ and protein-serine- threonine kinase, as well as expression of vascular endothelial growth factor, GSK-3β, and β-catenin. CONCLUSIONS We have shown, for the first time, the critical role of isoleucyl-tRNA synthetase in human umbilical vein endothelial cells. Our data show that isoleucyl-tRNA synthetase knockdown suppresses human umbilical vein endothelial cell proliferation, migration, and angiogenesis. We have also shown that isoleucyl-tRNA synthetase knockdown suppresses phosphorylation of extracellular-regulated kinase ½ and protein-serine- threonine kinase, as well as expression of vascular endothelial growth factor, GSK-3β, and β-catenin. Together, these data highlight isoleucyl-tRNA synthetase as a potential antitumor anti-angiogenic target.
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Affiliation(s)
- Yue-Ming Yu
- Fudan University, The Fifth People's Hospital of Shanghai, Department of Orthopedics - Shanghai, China
| | - Liang Xu
- Fudan University, The Fifth People's Hospital of Shanghai, Department of Orthopedics - Shanghai, China
| | - Hao-Ran Li
- Fudan University, The Fifth People's Hospital of Shanghai, Department of Orthopedics - Shanghai, China
| | - Tie-Qi Zhang
- Fudan University, The Fifth People's Hospital of Shanghai, Department of Orthopedics - Shanghai, China
| | - Guang Qian
- Fudan University, The Fifth People's Hospital of Shanghai, Department of Orthopedics - Shanghai, China
| | - Ling-Feng Li
- Fudan University, The Fifth People's Hospital of Shanghai, Department of Orthopedics - Shanghai, China
| | - Ming-Hai Wang
- Fudan University, The Fifth People's Hospital of Shanghai, Department of Orthopedics - Shanghai, China
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Chen T, Tian L, Chen J, Zhao X, Zhou J, Guo T, Sheng Q, Zhu L, Liu J, Lv Z. A Comprehensive Genomic Analysis Constructs miRNA-mRNA Interaction Network in Hepatoblastoma. Front Cell Dev Biol 2021; 9:655703. [PMID: 34422793 PMCID: PMC8377242 DOI: 10.3389/fcell.2021.655703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 07/13/2021] [Indexed: 12/04/2022] Open
Abstract
Hepatoblastoma (HB) is a rare disease but nevertheless the most common hepatic tumor in the pediatric population. For patients with advanced HB, the prognosis is dismal and there are limited therapeutic options. Multiple microRNAs (miRNAs) were reported to be involved in HB development, but the miRNA–mRNA interaction network in HB remains elusive. Through a comparison between HB and normal liver samples in the GSE131329 dataset, we detected 580 upregulated differentially expressed mRNAs (DE-mRNAs) and 790 downregulated DE-mRNAs. As for the GSE153089 dataset, the first cluster of differentially expressed miRNAs (DE-miRNAs) were detected between fetal-type tumor and normal liver groups, while the second cluster of DE-miRNAs were detected between embryonal-type tumor and normal liver groups. Through the intersection of these two clusters of DE-miRNAs, 33 upregulated hub miRNAs, and 12 downregulated hub miRNAs were obtained. Based on the respective hub miRNAs, the upstream transcription factors (TFs) were detected via TransmiR v2.0, while the downstream target genes were predicted via miRNet database. The intersection of target genes of respective hub miRNAs and corresponding DE-mRNAs contributed to 250 downregulated candidate genes and 202 upregulated candidate genes. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses demonstrated the upregulated candidate genes mainly enriched in the terms and pathways relating to the cell cycle. We constructed protein–protein interaction (PPI) network, and obtained 211 node pairs for the downregulated candidate genes and 157 node pairs for the upregulated candidate genes. Cytoscape software was applied for visualizing the PPI network and respective top 10 hub genes were identified using CytoHubba. The expression values of hub genes in the PPI network were subsequently validated through Oncopression database followed by quantitative real-time polymerase chain reaction (qRT-PCR) in HB and matched normal liver tissues, resulting in six significant downregulated genes and seven significant upregulated genes. The miRNA–mRNA interaction network was finally constructed. In conclusion, we uncover various miRNAs, TFs, and hub genes as potential regulators in HB pathogenesis. Additionally, the miRNA–mRNA interaction network, PPI modules, and pathways may provide potential biomarkers for future HB theranostics.
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Affiliation(s)
- Tong Chen
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Linlin Tian
- Department of Microbiology, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin, China
| | - Jianglong Chen
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiuhao Zhao
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Zhou
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ting Guo
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qingfeng Sheng
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Linlin Zhu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jiangbin Liu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhibao Lv
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Liu HM, Tan HY, Lin Y, Xu BN, Zhao WH, Xie YA. MicroRNA-1271-5p inhibits cell proliferation and enhances radiosensitivity by targeting CDK1 in hepatocellular carcinoma. J Biochem 2021; 167:513-524. [PMID: 32275316 DOI: 10.1093/jb/mvz114] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 12/24/2019] [Indexed: 12/13/2022] Open
Abstract
This study aims to determine whether miR-1271-5p inhibits cell proliferation and enhances the radiosensitivity by targeting cyclin-dependent kinase 1 (CDK1) in hepatocellular carcinoma (HCC). Its expression levels in the HCC cell lines were significantly lower than those in normal human liver cell line. Bioinformatics analysis indicated CDK1 was a potential target of miR-1271-5p. Dual-Luciferase Reporter Assay confirmed that CDK1 is a direct target gene of miR-1271-5p. With overexpression of miR-1271-5p in SMMC-7721 and HuH-7 cells, cell proliferation was decreased, radiosensitivity was enhanced, cell cycle distribution was altered and the growth of transplanted tumours in nude mice was significantly reduced. miR-1271-5p overexpression enhanced radiosensitivity, which could be reduced by CDK1 overexpression. Overall, our findings suggested that miR-1271-5p inhibits cell proliferation and enhances the radiosensitivity of HCC cell lines by targeting CDK1.
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Affiliation(s)
- Hong-Mei Liu
- Research Department, Affiliated Cancer Hospital of Guangxi Medical University and Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China.,Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University and Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Hua-Yan Tan
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University and Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Yue Lin
- Research Department, Affiliated Cancer Hospital of Guangxi Medical University and Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Bei-Ning Xu
- Research Department, Affiliated Cancer Hospital of Guangxi Medical University and Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Wen-Hua Zhao
- Research Department, Affiliated Cancer Hospital of Guangxi Medical University and Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Yu-An Xie
- Research Department, Affiliated Cancer Hospital of Guangxi Medical University and Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China.,The Maternal & Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
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Nguyen L, Schilling D, Dobiasch S, Raulefs S, Santiago Franco M, Buschmann D, Pfaffl MW, Schmid TE, Combs SE. The Emerging Role of miRNAs for the Radiation Treatment of Pancreatic Cancer. Cancers (Basel) 2020; 12:cancers12123703. [PMID: 33317198 PMCID: PMC7763922 DOI: 10.3390/cancers12123703] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/17/2020] [Accepted: 12/04/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary Pancreatic cancer is an aggressive disease with a high mortality rate. Radiotherapy is one treatment option within a multimodal therapy approach for patients with locally advanced, non-resectable pancreatic tumors. However, radiotherapy is only effective in about one-third of the patients. Therefore, biomarkers that can predict the response to radiotherapy are of utmost importance. Recently, microRNAs, small non-coding RNAs regulating gene expression, have come into focus as there is growing evidence that microRNAs could serve as diagnostic, predictive and prognostic biomarkers in various cancer entities, including pancreatic cancer. Moreover, their high stability in body fluids such as serum and plasma render them attractive candidates for non-invasive biomarkers. This article describes the role of microRNAs as suitable blood biomarkers and outlines an overview of radiation-induced microRNAs changes and the association with radioresistance in pancreatic cancer. Abstract Today, pancreatic cancer is the seventh leading cause of cancer-related deaths worldwide with a five-year overall survival rate of less than 7%. Only 15–20% of patients are eligible for curative intent surgery at the time of diagnosis. Therefore, neoadjuvant treatment regimens have been introduced in order to downsize the tumor by chemotherapy and radiotherapy. To further increase the efficacy of radiotherapy, novel molecular biomarkers are urgently needed to define the subgroup of pancreatic cancer patients who would benefit most from radiotherapy. MicroRNAs (miRNAs) could have the potential to serve as novel predictive and prognostic biomarkers in patients with pancreatic cancer. In the present article, the role of miRNAs as blood biomarkers, which are associated with either radioresistance or radiation-induced changes of miRNAs in pancreatic cancer, is discussed. Furthermore, the manuscript provides own data of miRNAs identified in a pancreatic cancer mouse model as well as radiation-induced miRNA changes in the plasma of tumor-bearing mice.
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Affiliation(s)
- Lily Nguyen
- Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, 85764 Neuherberg, Germany; (L.N.); (D.S.); (S.D.); (S.R.); (M.S.F.); (T.E.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), Klinikum rechts der Isar, 81675 Munich, Germany
| | - Daniela Schilling
- Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, 85764 Neuherberg, Germany; (L.N.); (D.S.); (S.D.); (S.R.); (M.S.F.); (T.E.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), Klinikum rechts der Isar, 81675 Munich, Germany
| | - Sophie Dobiasch
- Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, 85764 Neuherberg, Germany; (L.N.); (D.S.); (S.D.); (S.R.); (M.S.F.); (T.E.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), Klinikum rechts der Isar, 81675 Munich, Germany
- Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, 81675 Munich, Germany
| | - Susanne Raulefs
- Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, 85764 Neuherberg, Germany; (L.N.); (D.S.); (S.D.); (S.R.); (M.S.F.); (T.E.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), Klinikum rechts der Isar, 81675 Munich, Germany
| | - Marina Santiago Franco
- Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, 85764 Neuherberg, Germany; (L.N.); (D.S.); (S.D.); (S.R.); (M.S.F.); (T.E.S.)
| | - Dominik Buschmann
- Division of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich (TUM), 85354 Freising, Germany; (D.B.); (M.W.P.)
| | - Michael W. Pfaffl
- Division of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich (TUM), 85354 Freising, Germany; (D.B.); (M.W.P.)
| | - Thomas E. Schmid
- Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, 85764 Neuherberg, Germany; (L.N.); (D.S.); (S.D.); (S.R.); (M.S.F.); (T.E.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), Klinikum rechts der Isar, 81675 Munich, Germany
| | - Stephanie E. Combs
- Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, 85764 Neuherberg, Germany; (L.N.); (D.S.); (S.D.); (S.R.); (M.S.F.); (T.E.S.)
- Department of Radiation Oncology, School of Medicine, Technical University of Munich (TUM), Klinikum rechts der Isar, 81675 Munich, Germany
- Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, 81675 Munich, Germany
- Correspondence: ; Tel.: +49-89-4140-4501
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Qin P, Li Y, Liu J, Wang N. Knockdown of LINC00473 promotes radiosensitivity of non-small cell lung cancer cells via sponging miR-513a-3p. Free Radic Res 2020; 54:756-764. [PMID: 33103510 DOI: 10.1080/10715762.2020.1841900] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Non-small cell lung cancer (NSCLC) is the most common form of lung cancer. Radioresistance is a significant obstacle in NSCLC radiotherapy. Long non-coding RNA LINC00473 has been found to impact the radiotherapy in several malignant tumours. This study aimed to investigate the underlying role and mechanism of LINC00473 in regulating radiosensitivity of NSCLC cells. The levels of LINC00473 and miR-513a-3p were measured by quantitative Real-Time PCR. The relationship of LINC00473 with overall survival was tested by the Kaplan-Meier method. The effects of LINC00473 on cell viability and cell survival were assessed by cell counting kit-8 (CCK-8) and colony survival assay in NSCLC cells exposed to different doses of radiation. A luciferase reporter assay was used to investigate the correlation between LINC00473 and miR-513a-3p. The present study showed that the relative LINC00473 expression was upregulated and miR-513a-3p expression was downregulated in radioresistant NSCLC patients compared with radiosensitive patients. And upregulated LINC00473 expression was associated with poor prognosis of NSCLC patients after radiotherapy. Radiation led to an increase in LINC00473 expression in a dose- and time-dependent manner. The knockdown of LINC00473 markedly promoted radiosensitivity in NSCLC cells under different doses of radiation. LINC00473 was a sponge of miR-513a-3p and negatively regulated the miR-513a-3p expression. In conclusion, the inhibition of miR-513a-3p markedly reversed the promoted effect of LINC00473 knockdown on cell radiosensitivity. LINC00473 inhibition enhances radiosensitivity of NSCLC by sponging miR-513a-3p, providing a promising therapeutic target to increase the sensitivity of radiotherapy in NSCLC patients.
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Affiliation(s)
- Peiyan Qin
- Department of Radiotherapy, Weifang People's Hospital, Shandong, China
| | - Yang Li
- Department of Radiotherapy, Weifang People's Hospital, Shandong, China
| | - Jinfeng Liu
- Endoscopy Center, Weifang People's Hospital, Shandong, China
| | - Nan Wang
- Department of Radiotherapy, Weifang People's Hospital, Shandong, China
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Ge C, Su F, Fu H, Wang Y, Tian B, Liu B, Zhu J, Ding Y, Zheng X. RNA Profiling Reveals a Common Mechanism of Histone Gene Downregulation and Complementary Effects for Radioprotectants in Response to Ionizing Radiation. Dose Response 2020; 18:1559325820968433. [PMID: 33117095 PMCID: PMC7573744 DOI: 10.1177/1559325820968433] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/14/2020] [Accepted: 05/27/2020] [Indexed: 12/11/2022] Open
Abstract
High-dose ionizing radiation (IR) alters the expression levels of non-coding RNAs (ncRNAs). However, the roles of ncRNAs and mRNAs in mediating radiation protection by radioprotectants remain unknown. Microarrays were used to determine microRNA (miRNA), long ncRNA (lncRNA), and mRNA expression profiles in the bone marrow of irradiated mice pretreated with amifostine, CBLB502, and nilestriol. Differentially expressed mRNAs were functionally annotated by Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses. Some histone cluster genes were validated by real-time PCR, and the effects of radioprotectant combinations were monitored by survival analysis. We found that these radioprotectants increased the induction of lncRNAs and mRNAs. miRNA, lncRNA, and mRNA expression patterns were similar with amifostine and CBLB502, but not nilestriol. The radioprotectants exhibited mostly opposite effects against IR-induced miRNAs, lncRNAs, and mRNAs while inducing a common histone gene downregulation following IR, mainly via nucleosome assembly and related signaling pathways. Notably, the effects of nilestriol significantly complemented those of amisfostine or CBLB502; low-dose drug combinations resulted in better radioprotective effects in pretreated mice. Thus, we present histone gene downregulation by radioprotectants, together with the biological functions of miRNA, lncRNA, and mRNA, to explain the mechanism underlying radioprotection.
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Affiliation(s)
- Changhui Ge
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Fei Su
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Hanjiang Fu
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yuan Wang
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Baolei Tian
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Bin Liu
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Jie Zhu
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yong Ding
- 5th Medical Center, The General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Xiaofei Zheng
- Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
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MicroRNA-107 enhances radiosensitivity by suppressing granulin in PC-3 prostate cancer cells. Sci Rep 2020; 10:14584. [PMID: 32883962 PMCID: PMC7471693 DOI: 10.1038/s41598-020-71128-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/30/2020] [Indexed: 11/20/2022] Open
Abstract
Prostate cancer is the second leading cause of cancer-related death worldwide. Radiotherapy is often applied for the treatment, but radioresistance is a challenge in some patients. MicroRNAs have been reported to be involved in the DNA damage response induced by ionizing radiation and recent studies have reported microRNA-mediated radiosensitivity. In the present study, we found microRNA-107 (miR-107) enhanced radiosensitivity by regulating granulin (GRN) in prostate cancer (PC-3) cells. MiR-107 was downregulated and GRN was upregulated in response to ionizing radiation in PC-3 cells. Overexpression of miR-107 and knockdown of GRN promoted the sensitivity of PC3 cells to ionizing radiation. By rescue experiments of GRN, we revealed that radiosensitivity enhanced by miR-107 can be attenuated by GRN overexpression in PC-3 cells. Furthermore, we showed miR-107 enhanced radiation-induced G1/S phase arrest and G2/M phase transit, and identify delayed apoptosis by suppressing p21 and phosphorylation of CHK2. Collectively, these results highlight an unrecognized mechanism of miR-107-mediated GRN regulation in response to ionizing radiation and may advance therapeutic strategies for the treatment of prostate cancer.
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Zhang N, Song Y, Xu Y, Liu J, Shen Y, Zhou L, Yu J, Yang M. MED13L integrates Mediator-regulated epigenetic control into lung cancer radiosensitivity. Am J Cancer Res 2020; 10:9378-9394. [PMID: 32802198 PMCID: PMC7415817 DOI: 10.7150/thno.48247] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022] Open
Abstract
To date, efforts to improve non-small-cell lung cancer (NSCLC) outcomes with increased radiation dose have not been successful. Identification of novel druggable targets that are capable to modulate NSCLC radiosensitivity may provide a way forward. Mediator complex is implicated in gene expression control, but it remains unclear how Mediator dysfunction is involved in cancer radiotherapy. Methods: The biologic functions of miR-4497, MED13L and PRKCA in NSCLC radiosensitivity were examined through biochemical assays including gene expression profilling, cell proliferation assay, colony formation assay, wound healing assay, transwell assay, dual luciferase reporter assay, xenograft models, immunoprecipitation, and chromatin immunoprecipitation sequencing. Clinical implications of miR-4497, MED13L and PRKCA in radiosensitivity were evaluated in NSCLC patients treated with concurrent chemoradiotherapy or radiotherapy alone. Results: We found that radiation can trigger disassemble of Mediator complex via silencing of MED13L by miR-4497 in NSCLC. Although not interrupting structure integrity of the core Mediator or the CDK8 kinase module, suppression of MED13L attenuated their physical interactions and reduced recruitment of acetyltransferase P300 to chromatin via Mediator. Silencing of MED13L therefore diminishes global H3K27ac signals written by P300, activities of enhancer and/or promoters and expression of multiple oncogenes, especially PRKCA. Inhibition of PRKCA expression potentiates the killing effect of radiotherapy in vitro and in vivo. Remarkably, high PRKCA expression in NSCLC tissues is correlated with poor prognosis of patients received radiotherapy. Conclusions: Our study linking PRKCA to radiosensitivity through a novel mechanism may enable the rational targeting of PRKCA to unlock therapeutic potentials of NSCLC.
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He X, Shu Y. miR-452 promotes the development of gastric cancer via targeting EPB41L3. Pathol Res Pract 2020; 216:152725. [DOI: 10.1016/j.prp.2019.152725] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 10/13/2019] [Accepted: 10/26/2019] [Indexed: 01/07/2023]
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Toraih EA, El-Wazir A, Abdallah HY, Tantawy MA, Fawzy MS. Deregulated MicroRNA Signature Following Glioblastoma Irradiation. Cancer Control 2019; 26:1073274819847226. [PMID: 31046428 PMCID: PMC6501491 DOI: 10.1177/1073274819847226] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Glioblastoma (GBM), the most common and aggressive brain tumor in adults, shows resistance to treatment, particularly radiotherapy. One method for effective treatment is using a group of radiosensitizers that make tumor cells responsive to radiotherapy. A class of molecules whose expression is affected by radiotherapy is the microRNAs (miRNAs) that present promising regulators of the radioresponse. Eighteen miRNAs (miR-26a, -124, -128, -135b, -145, -153, -181a/b, -203, -21, -210, -212, -221/222, -223, -224, -320, and -590), involved in the pathogenesis of GBM and its radioresponsive state, were reviewed to identify their role in GBM and their potential as radiosensitizing agents. MicroRNAs-26a, -124, -128, -145, -153, -181a/b, -203, -221/222, -223, -224, -320, and -590 promoted GBM radiosensitivity, while microRNAs-135b, -21, -210, and -212 encouraged radioresistance. Ectopic overexpression of the radiosensitivity promoting miRNAs and knockdown of the radioresistant miRNAs represent a prospective radiotherapy enhancement opportunity. This offers a glimmer of hope for a group of the most unfortunate patients known to medicine.
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Affiliation(s)
- Eman A Toraih
- 1 Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,2 Center of Excellence of Molecular and Cellular Medicine, Suez Canal University, Ismailia, Egypt
| | - Aya El-Wazir
- 1 Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,2 Center of Excellence of Molecular and Cellular Medicine, Suez Canal University, Ismailia, Egypt
| | - Hoda Y Abdallah
- 1 Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,2 Center of Excellence of Molecular and Cellular Medicine, Suez Canal University, Ismailia, Egypt
| | - Mohamed A Tantawy
- 3 Department of Hormones, Medical Research Division, National Research Centre, Cairo, Egypt
| | - Manal S Fawzy
- 4 Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,5 Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
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22
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Peng Y, Liu Y, Gao Y, Yuan B, Qi X, Fu Y, Zhu Q, Cao T, Zhang S, Yin L, Li X. USP7 is a novel Deubiquitinase sustaining PLK1 protein stability and regulating chromosome alignment in mitosis. J Exp Clin Cancer Res 2019; 38:468. [PMID: 31730000 PMCID: PMC6858727 DOI: 10.1186/s13046-019-1457-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 10/17/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The deubiquitinase USP7 has been identified as an oncogene with key roles in tumorigenesis and therapeutic resistance for a series of cancer types. Recently small molecular inhibitors have been developed to target USP7. However, the anticancer mechanism of USP7 inhibitors is still elusive. METHODS Cell viability or clonogenicity was tested by violet crystal assay. Cell apoptosis or cell cycle was analyzed by flow cytometry, and chromosome misalignment was observed by a fluorescent microscopy. The protein interaction of PLK1 and USP7 was detected by tandem affinity purification and high throughput proteomics, and further confirmed by co-immunoprecipitation, GST pull-down and protein co-localization. The correlation between USP7 level of tumor tissues and taxane-resistance was evaluated. RESULTS Pharmacological USP7 inhibition by P5091 retarded cell proliferation and induced cell apoptosis. Further studies showed that P5091 induced cell cycle arrest at G2/M phase, and particularly induced chromosome misalignment, indicating the key roles of USP7 in mitosis. USP7 protein was detected in the PLK1-interacted protein complex. USP7 interacts with PLK1 protein through its PBD domain by catalytic activity. USP7 as a deubiquitinase sustained PLK1 protein stability via the C223 site, and inversely, USP7 inhibition by P5091 promoted the protein degradation of PLK1 through the ubiquitination-proteasome pathway. By overexpressing PLK1, USP7 that had been depleted by RNAi ceased to induce chromosome misalignment in mitosis and again supported cell proliferation and cell survival. Both USP7 and PLK1 were overexpressed in taxane-resistant cancer cells, and negatively correlated with the MP scores in tumor tissues. Either USP7 or PLK1 knockdown by RNAi significantly sensitized taxane-resistant cells to taxane cell killing. CONCLUSION This is the first report that PLK1 is a novel substrate of USP7 deubiquitinase, and that USP7 sustained the protein stability of PLK1. USP7 inhibition induces cell apoptosis and cell cycle G2/M arrest, and overcomes taxane resistance by inducing the protein degradation of PLK1, resulting in chromosome misalignment in mitosis.
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Affiliation(s)
- Yuchong Peng
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Youhong Liu
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Yingxue Gao
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Bowen Yuan
- Department of Pathology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xuli Qi
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Yuxin Fu
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Qianling Zhu
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Tuoyu Cao
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Songwei Zhang
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Linglong Yin
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiong Li
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Molecular Radiation Oncology, Xiangya Hospital, Central South University, Changsha, China
- School of Clinical Pharmacy, Guangdong Pharmacology University, Guangzhou, China
- The First Affiliated Hospital, Guangdong Pharmacology University, 19 Nonglinxia Road, Yuexiu District, Guangzhou, Guangdong China
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23
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Noguchi S, Ogusu R, Wada Y, Matsuyama S, Mori T. PTEN, A Target of Microrna-374b, Contributes to the Radiosensitivity of Canine Oral Melanoma Cells. Int J Mol Sci 2019; 20:E4631. [PMID: 31540513 PMCID: PMC6770036 DOI: 10.3390/ijms20184631] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 09/15/2019] [Accepted: 09/16/2019] [Indexed: 01/11/2023] Open
Abstract
Canine oral malignant melanoma (CoMM) is often treated by radiation therapy in veterinary medicine. However, not all cases are successfully managed by this treatment. For improved efficacy of radiation therapy, biomarkers predicting the radiosensitivity of melanoma cells need to be explored. Here, we, first, developed the radioresistant CoMM cell line, KMeC/R. We found that the expression level of phosphatase and tensin homolog (PTEN) of KMeC/R cells was significantly downregulated compared with KMeC cells. Overexpression of PTEN successfully restored the radiosensitivity of KMeC/R cells, and silencing of PTEN significantly increased the radioresistance of the CoMM cells tested. Next, we focused on microRNAs (miRNAs) to explore the mechanisms of downregulation of PTEN in KMeC/R cells. miR-374b was upregulated in KMeC/R cells compared with that in KMeC cells and in the irradiated CoMM cells tested. Furthermore, miR-374b directly targeted PTEN based on the luciferase activity assay. Moreover, the extrinsic miR-374b significantly increased the radioresistance of KMeC cells. In addition, the expression level of PTEN was significantly downregulated and that of miR-374b tended to be upregulated in recurrent CoMM tissues after radiation therapy compared with the pre-treatment tissues. Thus, the current study suggested that the miR-374b/PTEN signaling pathway possibly plays an important role in CoMM radiosensitivity.
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Affiliation(s)
- Shunsuke Noguchi
- Laboratory of Veterinary Radiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano-shi, Osaka 598-8531, Japan.
| | - Ryo Ogusu
- Laboratory of Veterinary Radiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano-shi, Osaka 598-8531, Japan.
| | - Yusuke Wada
- Veterinary Medical Center, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano-shi, Osaka 598-8531, Japan.
| | - Satoshi Matsuyama
- Laboratory of Veterinary Radiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano-shi, Osaka 598-8531, Japan.
| | - Takashi Mori
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1112, Japan.
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24
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Khan S, Ayub H, Khan T, Wahid F. MicroRNA biogenesis, gene silencing mechanisms and role in breast, ovarian and prostate cancer. Biochimie 2019; 167:12-24. [PMID: 31493469 DOI: 10.1016/j.biochi.2019.09.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/01/2019] [Indexed: 12/21/2022]
Abstract
Micro-ribonucleic acids (miRNAs) are important class of short regulatory RNA molecules involved in regulation of several essential biological processes. In addition to Dicer and Drosha, over the past few years several other gene products are discovered that regulates miRNA biogenesis pathways. Similarly, various models of molecular mechanisms underlying miRNA mediated gene silencing have been uncovered through which miRNA contribute in diverse physiological and pathological processes. Dysregulated miRNA expression has been reported in many cancers manifesting tumor suppressive or oncogenic role. In this review, critical overview of recent findings in miRNA biogenesis, silencing mechanisms and specifically the role of miRNA in breast, ovarian and prostate cancer will be described. Recent advancements in miRNA research summarized in this review will enhance the molecular understanding of miRNA biogenesis and mechanism of action. Also, role of miRNAs in pathogenesis of breast, ovarian and prostate cancer will provide the insights for the use of miRNAs as biomarker or therapeutic agents for the cancers.
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Affiliation(s)
- Sanna Khan
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Humaira Ayub
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Taous Khan
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan
| | - Fazli Wahid
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, 22060, Pakistan.
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25
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Long L, Zhang X, Bai J, Li Y, Wang X, Zhou Y. Tissue-specific and exosomal miRNAs in lung cancer radiotherapy: from regulatory mechanisms to clinical implications. Cancer Manag Res 2019; 11:4413-4424. [PMID: 31191004 PMCID: PMC6525830 DOI: 10.2147/cmar.s198966] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/15/2019] [Indexed: 12/16/2022] Open
Abstract
Lung cancer is the most prevalent and deadly malignancy. Radiotherapy is a major treatment modality for lung cancer. Nevertheless, radioresistance poses a daunting challenge that largely limits the efficacy of radiotherapy. There is a pressing need for deciphering molecular mechanisms underlying radioresistance and elucidating novel therapeutic targets for individualized radiotherapy. MicroRNAs are categorized as small noncoding RNAs that modulate target-gene expression posttranscriptionally and are implicated in carcinogenesis and cancer resistance to treatment. Overwhelming evidence has unraveled that tissue-specific miRNAs are essential for regulation of the radiosensitivity in lung cancer cells through a complex interaction with multiple biological processes and radiation-induced pathways. Moreover, exosome-derived miRNAs are a novel horizon in lung cancer treatment in which exosomal miRNAs act as potential diagnostic and therapeutic biomarkers of radiotherapy. In the present review, we discuss the mediation of key biological processes and signaling pathways by tissue-specific miRNAs in lung cancer radiotherapy. Additionally, we provide new insight into the potential significance of exosomal miRNAs in radiation response. Lastly, we highlight miRNAs as promising predictors and therapeutic targets to tailor personalized lung cancer radiotherapy.
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Affiliation(s)
- Long Long
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, People's Republic of China
| | - Xue Zhang
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, People's Republic of China
| | - Jian Bai
- Department of Oncology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.,Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study Center, Wuhan, 430071, People's Republic of China
| | - Yizhou Li
- Department of Orthopaedics, Zhongnan Hospital of Wuhan University, Wuhan 430071, People's Republic of China
| | - Xiaolong Wang
- Department of Urology, Research Lab/LIFE-Zentrum, University of Munich (LMU), München, Germany
| | - Yunfeng Zhou
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, People's Republic of China
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26
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Guo Y, Zhai J, Zhang J, Ni C, Zhou H. Improved Radiotherapy Sensitivity of Nasopharyngeal Carcinoma Cells by miR-29-3p Targeting COL1A1 3'-UTR. Med Sci Monit 2019; 25:3161-3169. [PMID: 31034464 PMCID: PMC6503752 DOI: 10.12659/msm.915624] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background Radio-resistance is an obstacle to the treatment of human nasopharyngeal carcinoma (NPC). However, how microRNAs (miRNA) are involved in this process remains unclear. In the present study we explored the role and possible molecular mechanism of miR-29a-3p, formerly known as tumor suppressors, in radio-sensitivity of NPC cells. Material/Methods A radio-resistant sub-cell line, CNE-2R, was established to detect the expression of miR-29a/b/c-3p using qRT-PCR. CCK-8 assay, colony formation assay, and single-cell gel electrophoresis (SCGE) assay were carried out to analyze the radio-sensitivity of NPC cells. qRT-PCR, luciferase reporter, and Western blot experiments were performed to validate the targeting of COL1A1 by miR-29a. Short interference RNAs (siRNAs) were used to investigate whether COL1A1 mediates the radio-sensitizer role of miR-29a. Expression of miR-29a and COL1A1 in radio-resistant NPC tissues was finally determined. Results miR-29a was decreased in the radio-resistant CNE-2R cells. Following a time-course irradiation (IR) exposure, miR-29a exhibited a time-dependent decrease. Cellular experiments confirmed that miR-29a induced radio-sensitivity of CNE-2R cells via suppressing cell viability and enhancing cell apoptosis after IR. We confirmed that COL1A1 is a direct target of miR-29a and can exert radio-resistance effects in NPC cells. We also found that knockdown of COL1A1 inhibits NPC cell viability and sensitivity to IR. Finally, we observed a downregulation of miR-29a in radio-resistant NPC tissues and its decrease was associated with upregulation of COL1A1. Conclusions miR-29a is a critical determinant of NPC radio-response for NPC patients, and its induction provides a promising therapeutic choice to elevate NPC radio-sensitivity.
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Affiliation(s)
- Ying Guo
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Jianhua Zhai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Jing Zhang
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Changbao Ni
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
| | - Huifang Zhou
- Department of Otorhinolaryngology, Tianjin Medical University General Hospital, Tianjin, China (mainland)
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27
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Association between miR-21/146a/155 level changes and acute genitourinary radiotoxicity in prostate cancer patients: A pilot study. Pathol Res Pract 2019; 215:626-631. [DOI: 10.1016/j.prp.2018.12.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/19/2018] [Accepted: 12/09/2018] [Indexed: 12/15/2022]
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28
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Luo J, Si ZZ, Li T, Li JQ, Zhang ZQ, Chen GS, Qi HZ, Yao HL. MicroRNA-146a-5p enhances radiosensitivity in hepatocellular carcinoma through replication protein A3-induced activation of the DNA repair pathway. Am J Physiol Cell Physiol 2019; 316:C299-C311. [PMID: 30462539 DOI: 10.1152/ajpcell.00189.2018] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hepatocellular carcinoma (HCC) is known for its high mortality rate worldwide. Based on intensive studies, microRNA (miRNA) expression functions in tumor suppression. Therefore, we aimed to evaluate the contribution of miR-146a-5p to radiosensitivity in HCC through the activation of the DNA damage repair pathway by binding to replication protein A3 (RPA3). First, the limma package of R was performed to differentially analyze HCC expression chip, and regulative miRNA of RPA3 was predicted. Expression of miR-146a-5p, RPA3, and DNA damage repair pathway-related factors in tissues and cells was determined. The effects of radiotherapy on the expression of miR-146a-5p and RPA3 as well as on cell radiosensitivity, proliferation, cell cycle, and apoptosis were also assessed. The results showed that there exists a close correlation between miR-146a and the radiotherapy effect on HCC progression through regulation of RPA3 and the DNA repair pathway. The positive rate of ATM, pCHK2, and Rad51 in HCC tissues was higher when compared with that of the paracancerous tissues. SMMC-7721 and HepG2 cell proliferation were significantly inhibited following 8 Gy 6Mv dose. MiR-146a-5p restrained the expression of RPA3 and promoted the expression of relative genes associated with the DNA repair pathway. In addition, miR-146a-5p overexpression suppresses cell proliferation and enhances radiosensitivity and cell apoptosis in HCC cells. In conclusion, the present study revealed that miR-146a-5p could lead to the restriction of proliferation and the promotion of radiosensitivity and apoptosis in HCC cells through activation of DNA repair pathway and inhibition of RPA3.
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Affiliation(s)
- Jing Luo
- Department of Organ Transplantation and General Surgery, Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhong-Zhou Si
- Department of Organ Transplantation and General Surgery, Second Xiangya Hospital of Central South University, Changsha, China
| | - Ting Li
- Department of Organ Transplantation and General Surgery, Second Xiangya Hospital of Central South University, Changsha, China
| | - Jie-Qun Li
- Department of Organ Transplantation and General Surgery, Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhong-Qiang Zhang
- Department of Organ Transplantation and General Surgery, Second Xiangya Hospital of Central South University, Changsha, China
| | - Guang-Shun Chen
- Department of Organ Transplantation and General Surgery, Second Xiangya Hospital of Central South University, Changsha, China
| | - Hai-Zhi Qi
- Department of Organ Transplantation and General Surgery, Second Xiangya Hospital of Central South University, Changsha, China
| | - Hong-Liang Yao
- Department of Gastrointestinal Surgery, Second Xiangya Hospital of Central South University, Changsha, China
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29
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Wang Z, Mao JW, Liu GY, Wang FG, Ju ZS, Zhou D, Wang RY. MicroRNA-372 enhances radiosensitivity while inhibiting cell invasion and metastasis in nasopharyngeal carcinoma through activating the PBK-dependent p53 signaling pathway. Cancer Med 2019; 8:712-728. [PMID: 30656832 PMCID: PMC6382924 DOI: 10.1002/cam4.1924] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 11/23/2018] [Accepted: 11/23/2018] [Indexed: 01/05/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a common cancer found in the nasopharynx, which plagues countless NPC patients. MicroRNA‐372 (miR‐372) has been reported to be involved in various tumors. Here, we explored the important role of miR‐372 in radiosensitivity, invasion, and metastasis of NPC. Microarray analysis was conducted to search the NPC‐related differentially expressed genes (DEGs) and predict the miRs regulating PBK, which suggested that miR‐372 could influence the development of NPC via PBK and the p53 signaling pathway. Importantly, miR‐372 was observed to target PBK, thus down‐regulating its expression. Then, NPC 5‐8F and C666‐1 cells were selected, and treated with ionization radiation and alteration of miR‐372 and PBK expression to explore the functional role of miR‐372 in NPC. The expression of miR‐372, PBK, Bcl‐2, p53, and Bax as well as the extent of Akt phosphorylation were measured. In addition, cell colony formation, cell cycle, proliferation, apoptosis, migration, and invasion were detected. At last, tumor growth and the effect of miR‐372 on radiosensitivity of NPC were evaluated. Besides, over‐expressed miR‐372 down‐regulated Bcl‐2 and PBK expression and the extent of Akt phosphorylation while up‐regulated the expression of p53 and Bax. Additionally, miR‐372 over‐expression and radiotherapy inhibited cell clone formation, proliferation, tumor growth, migration, invasion, and cell cycle entry, but promoted cell apoptosis. However, the restoration of PBK in NPC cells expressing miR‐372 reversed the anti‐tumor effect of miR‐372 and activation of the p53 signaling pathway. In conclusion, the study shows that up‐regulated miR‐372 promotes radiosensitivity by activating the p53 signaling pathway via inhibition of PBK.
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Affiliation(s)
- Zhe Wang
- Department of Medical Oncology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.,The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China
| | - Ji-Wei Mao
- Department of Medical Oncology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.,The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China
| | - Guang-Yan Liu
- College of Basic Medical Sciences, Shenyang Medical College, Shenyang, China
| | - Fu-Guang Wang
- Department of Medical Oncology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Zai-Shuang Ju
- Department of Medical Oncology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Dong Zhou
- Department of Medical Oncology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Ruo-Yu Wang
- Department of Medical Oncology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.,The Key Laboratory of Biomarker High Throughput Screening and Target Translation of Breast and Gastrointestinal Tumor, Dalian University, Dalian, China
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30
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Story MD, Durante M. Radiogenomics. Med Phys 2018; 45:e1111-e1122. [DOI: 10.1002/mp.13064] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/23/2018] [Accepted: 04/27/2018] [Indexed: 12/24/2022] Open
Affiliation(s)
- Michael D. Story
- Department of Radiation Oncology University of Texas, Southwestern Medical Center Dallas TX USA
- Simmons Comprehensive Cancer Center University of Texas, Southwestern Medical Center Dallas TX USA
| | - Marco Durante
- Trento Institute for Fundamental Physics Applications National Institute for Nuclear Physics Trento Italy
- Department of Physics University of Trento Trento Italy
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31
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Wu Y, Huang J, Xu H, Gong Z. Over-expression of miR-15a-3p enhances the radiosensitivity of cervical cancer by targeting tumor protein D52. Biomed Pharmacother 2018; 105:1325-1334. [DOI: 10.1016/j.biopha.2018.06.033] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/07/2018] [Accepted: 06/07/2018] [Indexed: 11/16/2022] Open
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MicroRNA-219-5p Promotes Tumor Growth and Metastasis of Hepatocellular Carcinoma by Regulating Cadherin 1. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4793971. [PMID: 29862272 PMCID: PMC5976989 DOI: 10.1155/2018/4793971] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 03/19/2018] [Indexed: 12/13/2022]
Abstract
MicroRNAs play significant roles in the development of cancer and may serve as promising therapeutic targets. In our previous work, miR-219-5p was identified as one of the important metastasis-related microRNAs in HCC. Here we demonstrated that miR-219-5p expression was elevated in HCC tissues and was associated with vascular invasion and dismal prognosis. In multivariate analysis, miR-219-5p was identified as an independent prognostic indicator for HCC patients. Functional mechanism analyses showed that miR-219-5p promoted HCC cell proliferation and invasion in in vitro, as well as in vivo, tumor growth and metastasis in nude mice models bearing human HCC tumors. In addition, cadherin 1 (CDH1) was revealed to be a downstream target of miR-219-5p in HCC cells. In conclusion, miR-219-5p promotes tumor growth and metastasis of HCC by regulating CDH1 and can serve as a prognostic marker for HCC patients.
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33
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Wang XY, Chen XY, Li J, Zhang HY, Liu J, Sun LD. MiR-200a expression in CD4+ T cells correlates with the expression of Th17/Treg cells and relevant cytokines in psoriasis vulgaris: A case control study. Biomed Pharmacother 2018; 93:1158-1164. [PMID: 28738533 DOI: 10.1016/j.biopha.2017.06.055] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 06/12/2017] [Accepted: 06/19/2017] [Indexed: 01/21/2023] Open
Abstract
The main aim of this study is to investigate the underlying relationship shared between microRNA-200a (miR-200a) and its link to concentrations of Th17 and Treg cells, mRNA expressions of their specific transcription factors retinoic acid-related orphan receptor γt (RORγt) and head box protein 3 (FOXP3) and relevant cytokines in patients with psoriasis vulgaris (PV). A total of 189 patients previously diagnosed with PV were selected as the experimental group, whilst 109 healthy individuals as the control group. According to the psoriasis area and severity index (PASI), subjects in the experimental group were assigned into the severe group (95 cases) and the moderate group (94 cases). CD4+ T and Th17/Treg cells were extracted. MiR-200a expression and RORγt and FoxP3 mRNA expressions were detected by qRT-PCR. Concentrations of Th17 and Treg cells were measured via flow cytometry. ELISA was conducted for serum IL-17, IL-23 and TGF-β levels. Correlation analysis was completed in accordance with the Pearson method. Compared with the moderate group, higher miR-200a expression, RORγt mRNA expression, percentage of Th17, Th17/Treg ratio and levels of IL-17 and IL-23 exhibited in the severe group, whilst FoxP3 mRNA expression and, percentage of Treg as well as TGF-β were lower. A same trend displayed when comparing the moderate group to the control group. We found that miR-200a expression, percentage of Th17, Th17/Treg ratio, IL-17 and IL-23 levels and RORγt mRNA expression are positively correlated with PASI grade, while the percentage of Treg, TGF-β level and FoxP3 mRNA expression are negatively correlated with PASI grade. The results also displayed that the percentage of Th17, Th17/Treg ratio, IL-17 and IL-23 levels and RORγt mRNA expression are positively correlated with miR-200a expression, while the percentage seen in Treg and TGF-βand FoxP3 mRNA expression are negatively correlated with miR-200a expression. Our results provided a strong evidence that up-regulation of microRNA-200a in CD4+ T cells may induce immune dysfunction through Th17/Treg cells and relevant cytokines in PV patients.
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Affiliation(s)
- Xiao-Yan Wang
- Department of Dermatology, Qingdao Municipal Hospital, Qingdao 266011, PR China
| | - Xing-Yu Chen
- Department of Dermatology, Qingdao Municipal Hospital, Qingdao 266011, PR China
| | - Jun Li
- Department of Dermatology, Qingdao Municipal Hospital, Qingdao University, Qingdao 266011, PR China
| | - Hong-Ying Zhang
- Department of Dermatology, Qingdao Municipal Hospital, Qingdao 266011, PR China.
| | - Juan Liu
- Department of Dermatology, Zhujiang Hospital of Southern Medical University, Guangzhou 510280, PR China
| | - Le-Dong Sun
- Department of Dermatology, Zhujiang Hospital of Southern Medical University, Guangzhou 510280, PR China
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Fang C, Dai CY, Mei Z, Jiang MJ, Gu DN, Huang Q, Tian L. microRNA-193a stimulates pancreatic cancer cell repopulation and metastasis through modulating TGF-β2/TGF-βRIII signalings. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:25. [PMID: 29433538 PMCID: PMC5809917 DOI: 10.1186/s13046-018-0697-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 02/02/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND Pancreatic cancer characterizes high recurrence and poor prognosis. In clinical practice, radiotherapy is widely used for pancreatic cancer treatment. However, the outcome remains undesirable due to tumor repopulation and following recurrence and metastasis after radiation. So, it is highly needed to explore the underlying molecular mechanisms and accordingly develop therapeutic strategies. Our previous studies revealed that dying cells from chemoradiation could stimulate repopulation of surviving pancreatic cancer cells. However, we still knew little how dying cells provoke pancreatic cancer cell repopulation. We herein would explore the significance of TGF-β2 changes and investigate the modulation of microRNA-193a (miR-193a), and identify their contributions to pancreatic cancer repopulation and metastasis. METHODS In vitro and in vivo repopulation models were established to mimic the biological processes of pancreatic cancer after radiation. Western blot, real-time PCR and dual-luciferase reporter assays were accordingly used to detect miR-193a and TGF-β2/TGF-βRIII signalings at the level of molecular, cellular and experimental animal model, respectively. Flow cytometry analysis, wound healing and transwell assay, vascular endothelial cell penetration experiment, and bioluminescence imaging were employed to assessthe biological behaviors of pancreatic cancer after different treatments. Patient-derived tumor xenograft (PDX) mice models were established to evaluate the therapeutic potential of miR-193a antagonist on pancreatic cancer repopulation and metastasis after radiation. RESULTS miR-193a was highly expressed in the irradiated pancreatic cancer dying cells, accordingly elevated the level of miR-193a in surviving cells, and further promoted pancreatic cancer repopulation and metastasis in vitro and in vivo. miR-193a accelerated pancreatic cancer cell cycle and stimulated cell proliferation and repopulation through inhibiting TGF-β2/TGF-βRIII/SMADs/E2F6/c-Myc signaling, and even destroyed normal intercellular junctions and promoted metastasis via repressing TGF-β2/TGF-βRIII/ARHGEF15/ABL2 pathway. Knockdown of miR-193a or restoration of TGF-β2/TGF-βRIII signaling in pancreatic cancer cells was found to block pancreatic cancer repopulation and metastasis after radiation. In PDX models, the treatment in combination with miR-193a antagonist and radiation was found to dramatically inhibit pancreatic cancer cell repopulation and metastasis, and further improved the survival after radiation. CONCLUSIONS Our findings demonstrated that miR-193a stimulated pancreatic cancer cell repopulation and metastasis through modulating TGF-β2/TGF-βRIII signalings, and miR-193a might be a potential therapeutic target for pancreatic cancer repopulation and metastasis.
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Affiliation(s)
- Chi Fang
- Institute of Translational Medicine, Science bldg. Rm 205, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, New Songjiang Rd No.650, Songjiang District, Shanghai, 201620, China.,Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen-Yun Dai
- Institute of Translational Medicine, Science bldg. Rm 205, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, New Songjiang Rd No.650, Songjiang District, Shanghai, 201620, China
| | - Zhu Mei
- Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ming-Jie Jiang
- Institute of Translational Medicine, Science bldg. Rm 205, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, New Songjiang Rd No.650, Songjiang District, Shanghai, 201620, China.,Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dian-Na Gu
- Institute of Translational Medicine, Science bldg. Rm 205, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, New Songjiang Rd No.650, Songjiang District, Shanghai, 201620, China.,Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian Huang
- Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The Comprehensive Cancer Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ling Tian
- Institute of Translational Medicine, Science bldg. Rm 205, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, New Songjiang Rd No.650, Songjiang District, Shanghai, 201620, China. .,Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Pan D, Du Y, Ren Z, Chen Y, Li X, Wang J, Hu B. Radiation induces premature chromatid separation via the miR-142-3p/Bod1 pathway in carcinoma cells. Oncotarget 2018; 7:60432-60445. [PMID: 27527863 PMCID: PMC5312394 DOI: 10.18632/oncotarget.11080] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 07/26/2016] [Indexed: 12/24/2022] Open
Abstract
Radiation-induced genomic instability plays a vital role in carcinogenesis. Bod1 is required for proper chromosome biorientation, and Bod1 depletion increases premature chromatid separation. MiR-142-3p influences cell cycle progression and inhibits proliferation and invasion in cervical carcinoma cells. We found that radiation induced premature chromatid separation and altered miR-142-3p and Bod1 expression in 786-O and A549 cells. Overexpression of miR-142-3p increased premature chromatid separation and G2/M cell cycle arrest in 786-O cells by suppressing Bod1 expression. We also found that either overexpression of miR-142-3p or knockdown of Bod1 sensitized 786-O and A549 cells to X-ray radiation. Overexpression of Bod1 inhibited radiation- and miR-142-3p-induced premature chromatid separation and increased resistance to radiation in 786-O and A549 cells. Taken together, these results suggest that radiation alters miR-142-3p and Bod1 expression in carcinoma cells, and thus contributes to early stages of radiation-induced genomic instability. Combining ionizing radiation with epigenetic regulation may help improve cancer therapies.
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Affiliation(s)
- Dong Pan
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences & Key Laboratory of Space Radiobiology of Gansu Province, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yarong Du
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences & Key Laboratory of Space Radiobiology of Gansu Province, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Zhenxin Ren
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences & Key Laboratory of Space Radiobiology of Gansu Province, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Yaxiong Chen
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences & Key Laboratory of Space Radiobiology of Gansu Province, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Xiaoman Li
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences & Key Laboratory of Space Radiobiology of Gansu Province, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jufang Wang
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences & Key Laboratory of Space Radiobiology of Gansu Province, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Burong Hu
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences & Key Laboratory of Space Radiobiology of Gansu Province, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, Jiangsu, China
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Arjumand W, Asiaf A, Ahmad ST. Noncoding RNAs in DNA Damage Response: Opportunities for Cancer Therapeutics. Methods Mol Biol 2018; 1699:3-21. [PMID: 29086365 DOI: 10.1007/978-1-4939-7435-1_1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
DNA repair machinery preserves genomic integrity, which is frequently challenged through endogenous and exogenous toxic insults, and any sort of repair machinery malfunctioning ultimately manifests in the form of several types of terrible human diseases such as cancers (Hoeijmakers, Nature 411(6835): 366-374, 2001). Noncoding RNAs (ncRNAs) are crucial players of DNA repair machinery in a cell and play a vital role in maintaining genomic stability, which is essential for its survival and normal functioning thus preventing tumorigenesis. To preserve the integrity of the genome, cells initiate a specific cellular response, recognized as DNA damage response (DDR), which includes several distinct DNA repair pathways. These repair pathways permit normal cells to repair DNA damage or induce apoptosis and cell cycle arrest in case the damage is irreparable. Disruption of these pathways in cancer leads to an increase in genomic instability and mutagenesis. Recently, emerging evidence suggests that ncRNAs play a critical role in the regulation of DDR. There is an extensive crosstalk between ncRNAs and the canonical DDR signaling pathway. DDR-induced expression of ncRNAs can provide a regulatory mechanism to accurately control the expression of DNA damage responsive genes in a spatio-temporal manner. DNA damage alters expression of a variety of ncRNAs at multiple levels including transcriptional regulation, post-transcriptional regulation, and RNA degradation and vice versa, wherein ncRNAs can directly regulate cellular processes involved in DDR by altering expression of their targeting genes, with a particular emphasis on microRNAs (miRNAs) and long noncoding RNAs (lncRNAs). Relationship between the defects in the DDR and deregulation of related ncRNAs in human cancers is one of the established, which is growing stronger with the advent of high-throughput sequencing techniques such as next-generation sequencing. Understanding of the mechanisms that explain the association between ncRNAs and DDR/DNA repair pathways will definitely increase our understanding on human tumor biology and on different responses to diverse drugs. Different ncRNAs interact with distinct DDR components and are promising targets for improving the effects to overcome the resistance to conventional chemotherapeutic agents. In this chapter, we will focus the role of ncRNAs in the DNA damage, repair, and cancer.
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Affiliation(s)
- Wani Arjumand
- Robson DNA Science Centre, Arnie Charbonneau Cancer Institute, Cumming School of Medicine, 2A32 HRIC, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N4N1, Canada
| | - Asia Asiaf
- Department of Biochemistry, Faculty of Science, University of Kashmir, Hazratbal Srinagar, J&K, 190006, India
| | - Shiekh Tanveer Ahmad
- Clarke H. Smith Brain Tumour Centre, Arnie Charbonneau Cancer Institute, Cumming School of Medicine, 2A25 HRIC, University of Calgary, 3330 Hospital Drive, NW, Calgary, AB, T2N4N1, Canada.
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Yuan D, Xu J, Wang J, Pan Y, Fu J, Bai Y, Zhang J, Shao C. Extracellular miR-1246 promotes lung cancer cell proliferation and enhances radioresistance by directly targeting DR5. Oncotarget 2017; 7:32707-22. [PMID: 27129166 PMCID: PMC5078045 DOI: 10.18632/oncotarget.9017] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 04/09/2016] [Indexed: 12/21/2022] Open
Abstract
MiRNAs in the circulation have been demonstrated to be a type of signaling molecule involved in intercellular communication but little is known about their role in regulating radiosensitivity. This study aims to investigate the effects of extracellular miRNAs induced by ionizing radiation (IR) on cell proliferation and radiosensitivity. The miRNAs in the conditioned medium (CM) from irradiated and non-irradiated A549 lung cancer cells were compared using a microarray assay and the profiles of 21 miRNAs up and down-regulated by radiation were confirmed by qRT-PCR. One of these miRNAs, miR-1246, was especially abundant outside the cells and had a much higher level compared with that inside of cells. The expressions of miR-1246 in both A549 and H446 cells increased along with irradiation dose and the time post-irradiation. By labeling exosomes and miR-1246 with different fluorescence dyes, it was found that the extracellular miR-1246 could shuttle from its donor cells to other recipient cells by a non-exosome associated pathway. Moreover, the treatments of cells with miR-1246 mimic or its antisense inhibitor showed that the extracellular miR-1246 could enhance the proliferation and radioresistance of lung cancer cells. A luciferase reporter-gene transfer experiment demonstrated that the death receptor 5 (DR5) was the direct target of miR-1246, and the kinetics of DR5 expression was opposite to that of miR-1246 in the irradiated cells. Our results show that the oncogene-like extracellular miR-1246 could act as a signaling messenger between irradiated and non-irradiated cells, more importantly, it contributes to cell radioresistance by directly suppressing the DR5 gene.
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Affiliation(s)
- Dexiao Yuan
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Jinping Xu
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Juan Wang
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Yan Pan
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Jiamei Fu
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Yang Bai
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Jianghong Zhang
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Chunlin Shao
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
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He X, Fan S. hsa-miR-212 modulates the radiosensitivity of glioma cells by targeting BRCA1. Oncol Rep 2017; 39:977-984. [PMID: 29286157 PMCID: PMC5802039 DOI: 10.3892/or.2017.6156] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 12/12/2017] [Indexed: 01/06/2023] Open
Abstract
Radioresistance remains a major challenge in the treatment of glioma, and the response of patients to radiotherapy varies considerably. MicroRNAs (miRNAs) are involved in various biological processes. The purpose of the present study was to investigate miRNAs involved in the response to radiation in glioma cell lines. Total RNA was isolated from human glioma U251 cells 30 min after γ-ray exposure and hybridized to an miRNA chip array. miRNA expression profiles were analyzed by quantitative real-time PCR. pcDNA3/EGFP-miR-212 mimic transfection was used to verify the function of miR-212 in colony formation tests, and the effect of miR-212 overexpression on U251 cells was examined by western blot analysis of apoptosis-related proteins (Bcl-2, Bax, caspase-3 and cytochrome c). The target genes of miR-212 were predicted using bioinformatic tools including miRNA databases, and breast cancer susceptibility gene 1 (BRCA1) was selected for further confirmation by EGFP fluorescence reporter and loss- and gain-of-function assays. Of the 16 candidate miRNAs showing altered expression, five were assessed by real-time PCR; miR-212 was identified as contributing to the radioresistance of glioma cells and was shown to attenuate radiation-induced apoptosis. miR-212 negatively regulated BRCA1 expression by interacting with its 3′-untranslated region, suggesting a correlation between BRCA1 expression and radiosensitivity in glioma cells. U-118MG and SHG-44 cell lines were used to confirm these observations. The response of glioma cells to radiation involves the miR-212-mediated modulation of BRCA1 gene expression, suggesting that the miR-212/BRCA1 axis may play a potential role in the radiotherapy of gliomas.
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Affiliation(s)
- Xin He
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College and Chinese Academy of Medical Sciences, Tianjin 300192, P.R. China
| | - Saijun Fan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College and Chinese Academy of Medical Sciences, Tianjin 300192, P.R. China
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Zhang Y, Zheng L, Lin S, Liu Y, Wang Y, Gao F. MiR-124 enhances cell radiosensitivity by targeting PDCD6 in nasopharyngeal carcinoma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:11461-11470. [PMID: 31966501 PMCID: PMC6966029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/10/2017] [Indexed: 06/10/2023]
Abstract
BACKGROUND Radiation resistance poses a major clinical challenge in treatment of nasopharyngeal carcinoma (NPC). Studies have shown that the abnormal expression of microRNAs (miRNAs) is associated with radiosensitivity, however, the mechanisms have not been fully elucidated. The aim of this study, therefore, was to investigate whether ectopic expression of miR-124 is correlated with radiosensitivity in NPC. METHODS In this study, the expression level of miR-124 was evaluated in NPC cell lines and patient specimens using quantitative reverse transcription-PCR (Real-time qPCR). Cell radiosensitivity was determined by colony formation assay. Target prediction algorithms and luciferase assay were used to confirm the target of miR-124. Tumor xenograft model was performed to understand the functions of miR-124 in vivo. RESULTS We found that miR-124 was down-regulated in both NPC specimens and NPC cell lines. Ectopic expression of miR-124 increased radiosensitivity of NPC cells. In vivo assays extended the significance of these results, showing that miR-124 overexpression decreased cell resistance to radiation treatment in tumor xenografts. Furthermore, we identified PDCD6 as a novel direct target of miR-124. Functional studies showed that knockdown PDCD6 enhanced cell radosensitivity to irradiation, and PDCD6 could rescue the effect caused by overexpression of miR-124, indicating that PDCD6 is a functional target of miR-124. CONCLUSIONS MiR-124 enhances cell radiosensitivity by targeting PDCD6, miR-124/PDCD6 axis may facilitate the development of novel targeted therapies for NPC.
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Affiliation(s)
- Yuqin Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Jinan UniversityGuangzhou, Guangdong Province, China
| | - Lin Zheng
- Department of Pathology, School of Basic Medical Sciences, Southern Medical UniversityGuangzhou, Guangdong Province, China
| | - Shuimiao Lin
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical UniversityGuangzhou, Guangdong Province, China
| | - Ying Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Jinan UniversityGuangzhou, Guangdong Province, China
| | - Yiming Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Jinan UniversityGuangzhou, Guangdong Province, China
| | - Fei Gao
- Department of Gastroenterology, The First Affiliated Hospital of Jinan UniversityGuangzhou, Guangdong Province, China
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Han Q, Li L, Liang H, Li Y, Xie J, Wang Z. Downregulation of lncRNA X Inactive Specific Transcript (XIST) Suppresses Cell Proliferation and Enhances Radiosensitivity by Upregulating mir-29c in Nasopharyngeal Carcinoma Cells. Med Sci Monit 2017; 23:4798-4807. [PMID: 28985197 PMCID: PMC5642646 DOI: 10.12659/msm.905370] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background LncRNA X inactive specific transcript (XIST) was reported to function as an oncogene in nasopharyngeal carcinoma cells (NPC) by sponging miR-34a-5p. However, the role of XIST in modulating the radiosensitivity of NPC cells and its mechanism still remain undefined. Material/Methods The expressions of XIST and miR-29c in NPC cells were evaluated by qRT-PCR. CNE1 and CNE2 cells were transfected with si-XIST, pcDNA-XIST, miR-29c mimics, anti-miR-29c, or respective controls by Lipofectamine 2000. The effects of XIST knockdown and miR-29c overexpression on cell proliferation, survival fraction, and γ-H2AX expression were investigated by CCK-8 assay, colony formation assay, immunofluorescence, and Western blot, respectively. Luciferase reporter assay and qRT-PCR analysis were performed to confirm whether XIST interacts with miR-29c and regulates its expression. Results XIST was upregulated and miR-29c was downregulated in NPC cells. The expressions of XIST and miR-29c changed reversely in response to irradiation. Knockdown of XIST and miR-29c overexpression both resulted in a dramatic suppression of cell proliferation, a marked enhancement of radiosensitivity, and an obvious increase of γ-H2AX foci formation in NPC cells. Luciferase reporter assay and qRT-PCR analysis demonstrated that XIST interacts with miR-29c and negatively regulates its expression. Moreover, miR-29c inhibition abrogated XIST knockdown-induced cell proliferation inhibition and radiosensitivity increase in NPC cells. Conclusions XIST knockdown suppressed cell proliferation and enhanced radiosensitivity of NPC cells by upregulating miR-29c, providing a novel therapeutic target to improve radiotherapy efficiency for patients with NPC.
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Affiliation(s)
- Qian Han
- Department of Radiotherapy, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan, China (mainland)
| | - Liang Li
- Department of Radiotherapy, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan, China (mainland)
| | - Hengpo Liang
- Department of Radiotherapy, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan, China (mainland)
| | - Yaqiong Li
- Department of Radiotherapy, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan, China (mainland)
| | - Jiacun Xie
- Department of Radiotherapy, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan, China (mainland)
| | - Zhibin Wang
- Department of Radiotherapy, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan, China (mainland)
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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] [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.
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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
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Hess AK, Müer A, Mairinger FD, Weichert W, Stenzinger A, Hummel M, Budach V, Tinhofer I. MiR-200b and miR-155 as predictive biomarkers for the efficacy of chemoradiation in locally advanced head and neck squamous cell carcinoma. Eur J Cancer 2017; 77:3-12. [DOI: 10.1016/j.ejca.2017.02.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/26/2017] [Accepted: 02/15/2017] [Indexed: 01/10/2023]
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43
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Mikhailov VF, Shulenina LV, Vasilyeva IM, Startsev MI, Zasukhina GD. The miRNA as human cell gene activity regulator after ionizing radiation. RUSS J GENET+ 2017. [DOI: 10.1134/s1022795417020077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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44
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MicroRNAs Involvement in Radioresistance of Head and Neck Cancer. DISEASE MARKERS 2017; 2017:8245345. [PMID: 28325958 PMCID: PMC5343268 DOI: 10.1155/2017/8245345] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/12/2017] [Indexed: 12/23/2022]
Abstract
Resistance to the ionizing radiation is a current problem in the treatment and clinical management of various cancers including head and neck cancer. There are several biological and molecular mechanisms described to be responsible for resistance of the tumors to radiotherapy. Among them, the main mechanisms include alterations in intracellular pathways involved in DNA damage and repair, apoptosis, proliferation, and angiogenesis. It has been found that regulation of these complex processes is often controlled by microRNAs. MicroRNAs are short endogenous RNA molecules that posttranscriptionally modulate gene expression and their deregulated expression has been observed in many tumors including head and neck cancer. Specific expression patterns of microRNAs have also been shown to predict prognosis and therapeutic response in head and neck cancer. Therefore, microRNAs present promising biomarkers and therapeutic targets that might overcome resistance to radiation and improve prognosis of head and neck cancer patients. In this review, we summarize the current knowledge of the functional role of microRNAs in radioresistance of cancer with special focus on head and neck cancer.
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45
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Guo Y, Sun W, Gong T, Chai Y, Wang J, Hui B, Li Y, Song L, Gao Y. miR-30a radiosensitizes non-small cell lung cancer by targeting ATF1 that is involved in the phosphorylation of ATM. Oncol Rep 2017; 37:1980-1988. [PMID: 28259977 PMCID: PMC5367375 DOI: 10.3892/or.2017.5448] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/24/2017] [Indexed: 02/07/2023] Open
Abstract
Increasing number of studies report that microRNAs play important roles in radiosensitization. miR-30a has been proved to perform many functions in the development and treatment of cancer, and it is downregulated in non-small cell lung cancer (NSCLC) tissues and cells. This study was conducted to understand if miR-30a plays a role in the radiosensitivity of NSCLC cells. Radiosensitivity was examed by colony survival assay and tumor volume changing in vitro and in vivo, respectively. Bioinformatic analysis and luciferase reporter assays were used to distinguish the candidate target of miR-30a. qRT-PCR and western blotting were carried out to detect the relative expression of mRNAs and proteins. Cell cycle and cell apoptosis were determined by flow cytometry. Our results illustrated miR-30a could increase the radiosensitivity of NSCLC, especially in A549 cell line. In vivo experiment also showed the potential radiosensitizing possibility of miR-30a. Further exploration validated that miR-30a was directly targeting activating transcription factor 1 (ATF1). In studying the ataxia-telangiectasia mutated (ATM) associated effects on cell radiosensitivity, we found that miR-30a could reduce radiation induced G2/M cell cycle arrest and may also affect radiation induced apoptosis. Together, our results demonstrated that miR-30a may modulate the radiosensitivity of NSCLC through reducing the function of ATF1 in phosphorylation of ATM and have potential therapeutic value.
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Affiliation(s)
- Yuyan Guo
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wenze Sun
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Tuotuo Gong
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yanlan Chai
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Juan Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Beina Hui
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yi Li
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Liping Song
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Ying Gao
- Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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46
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He J, Tian N, Yang Y, Jin L, Feng X, Hua J, Lin S, Wang B, Li H, Wang J. miR-185 enhances the inhibition of proliferation and migration induced by ionizing radiation in melanoma. Oncol Lett 2017; 13:2442-2448. [PMID: 28454417 DOI: 10.3892/ol.2017.5699] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 12/02/2016] [Indexed: 12/14/2022] Open
Abstract
Melanoma is an aggressive malignancy that is increasingly common and exhibits a poor patient survival rate. Radiotherapy is the primary option for patients with melanoma, particularly those who are not candidates for surgery; however, the therapeutic effect is limited due to the relative radioresistance of melanoma to ionizing radiation (IR). It has been reported that microRNAs (miRNAs) serve a vital role in determining the radiosensitivity of tumors; however, little is known concerning the radiosensitization of melanoma using miRNA. In the present study, the radiosensitization effect of miRNA 185 (miR-185), which has been demonstrated to reduce renal cancer radioresistance, was investigated in B16 cells, a skin melanoma cell line derived from C57/BL mice, was investigated. Cell proliferation and scratch wound healing assays were used to determine the proliferative and migratory abilities of B16 cells. Annexin V/propidium iodide double staining was used to determine the apoptosis induced by IR. A tumor formation assay was performed to determine the radiosensitization effect of miR-185 on melanoma cells in vivo. Proliferation marker protein Ki-67, and hematoxylin and eosin staining were used to assess the proliferative activity and histological changes, respectively. The results of the present study demonstrated that miR-185 suppresses cellular proliferation and migration, and enhances IR-induced apoptosis, and the inhibition of proliferation and migration, in vitro and in vivo, which provides an insight into understanding the radiosensitization of melanoma using miRNA.
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Affiliation(s)
- Jinpeng He
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China
| | - Ning Tian
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yanli Yang
- Department of Pathology, Lanzhou General Hospital, Lanzhou Command of the Chinese People's Liberation Army, Lanzhou, Gansu 730050, P.R. China
| | - Liangliang Jin
- Department of Pathology, Lanzhou General Hospital, Lanzhou Command of the Chinese People's Liberation Army, Lanzhou, Gansu 730050, P.R. China
| | - Xiu Feng
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Junrui Hua
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China
| | - Sulan Lin
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Bing Wang
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - He Li
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Jufang Wang
- Gansu Key Laboratory of Space Radiobiology, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China
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47
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Pan F, Mao H, Bu F, Tong X, Li J, Zhang S, Liu X, Wang L, Wu L, Chen R, Wei H, Li B, Li C, Yang Y, Steer CJ, Zhao J, Guo Y. Sp1-mediated transcriptional activation of miR-205 promotes radioresistance in esophageal squamous cell carcinoma. Oncotarget 2017; 8:5735-5752. [PMID: 27974696 PMCID: PMC5351585 DOI: 10.18632/oncotarget.13902] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/24/2016] [Indexed: 12/14/2022] Open
Abstract
Radiotherapy for esophageal squamous cell carcinoma (ESCC) patients is limited by resistance to ionizing radiation (IR). However, the roles and mechanisms of microRNAs in radioresistance are obscure. Here, we investigated that microRNA-205 (miR-205) was upregulated in radioresistant (RR) ESCC cells compared with the parental cells. Overexpression of miR-205 promoted colony survival post-IR, whereas depletion of miR-205 sensitized ESCC cells to IR in vitro and in vivo. Further, we demonstrated that miR-205 promoted radioresistance by enhancing DNA repair, inhibiting apoptosis and activating epithelial-mesenchymal transition (EMT). Mechanistically, miR-205, upregulated post-IR, was demonstrated to be activated by Sp1 in parallel with its host gene, miR-205HG, both of which showed a perfect correlation. We also identified and validated phosphatase and tensin homolog (PTEN), as a target of miR-205 that promoted radioresistance via PI3K/AKT pathway. Lastly, increased miR-205 expression was closely associated with decreased PTEN expression in ESCC tissues and miR-205 expression predicted poor prognosis in patients with ESCC. Taken together, these findings identify miR-205 as a critical determinant of radioresistance and a biomarker of prognosis. The Sp1-mediated transcriptional activation of miR-205 promotes radioresistance through PTEN via PI3K/AKT pathway in ESCC. Inhibition of miR-205 expression may be a new strategy for radiotherapy in ESCC.
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Affiliation(s)
- Fei Pan
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
- Department of Gastroenterology and Hepatology, Chinese PLA General Hospital, Beijing, P.R. China
| | - Hui Mao
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
| | - Fangfang Bu
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
- International Joint Cancer Institute, the Second Military Medical University, Shanghai, P.R. China
- Beijing Key Laboratory of Cell Engineering & Antibody, Beijing, P.R. China
| | - Xin Tong
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
- International Joint Cancer Institute, the Second Military Medical University, Shanghai, P.R. China
- Beijing Key Laboratory of Cell Engineering & Antibody, Beijing, P.R. China
| | - Jingjing Li
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
| | - Sujie Zhang
- The 150th Hospital of Chinese PLA, Luoyang, P.R. China
| | - Xing Liu
- The 150th Hospital of Chinese PLA, Luoyang, P.R. China
| | - Lingxiong Wang
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
| | - Liangliang Wu
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
| | - Rui Chen
- International Joint Cancer Institute, the Second Military Medical University, Shanghai, P.R. China
| | - Huafeng Wei
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
- Beijing Key Laboratory of Cell Engineering & Antibody, Beijing, P.R. China
| | - Bohua Li
- International Joint Cancer Institute, the Second Military Medical University, Shanghai, P.R. China
| | - Cheng Li
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
| | - Yunsheng Yang
- Department of Gastroenterology and Hepatology, Chinese PLA General Hospital, Beijing, P.R. China
| | - Clifford J. Steer
- Departments of Medicine and Genetics, Cell Biology and Development, University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | - Jian Zhao
- Key Laboratory of Cancer Center, Chinese PLA General Hospital & Chinese PLA Medical School, Beijing, P.R. China
- International Joint Cancer Institute, the Second Military Medical University, Shanghai, P.R. China
- Beijing Key Laboratory of Cell Engineering & Antibody, Beijing, P.R. China
| | - Yajun Guo
- State Key Laboratory of Antibody Medicine and Targeting Therapy, Shanghai, P.R. China
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48
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Lacombe J, Zenhausern F. Emergence of miR-34a in radiation therapy. Crit Rev Oncol Hematol 2017; 109:69-78. [PMID: 28010900 PMCID: PMC5199215 DOI: 10.1016/j.critrevonc.2016.11.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/14/2016] [Accepted: 11/29/2016] [Indexed: 12/20/2022] Open
Abstract
Expressions of many microRNAs (miRNAs) in response to ionizing radiation (IR) have already been investigated and some of them seem to play an important role in the tumor radioresistance, normal tissue radiotoxicity or as predictive biomarkers to radiation. miR-34a is an emerging miRNA in recent radiobiology studies. Here, we review this miR-34 family member by detailing its different roles in radiation response and we will discuss about the role that it can play in radiation treatment. Thus, we will show that IR regulates miR-34a by increasing its expression. We will also highlight different biological processes involved in cellular response to IR and regulated by miR-34a in order to demonstrate the role it can play in tumor radio-response or normal tissue radiotoxicity as a radiosensitizer or radioprotector. miR-34a is poised to assert itself as an important player in radiobiology and should become more and more important in radiation therapy management.
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Affiliation(s)
- Jerome Lacombe
- Center for Applied NanoBioscience and Medicine, University of Arizona, 145 S. 79th Street, Chandler, AZ 85226, USA.
| | - Frederic Zenhausern
- Center for Applied NanoBioscience and Medicine, University of Arizona, 145 S. 79th Street, Chandler, AZ 85226, USA; Translational Genomics Research Institute, 445 N. Fifth Street, Phoenix, AZ 85004, USA; Department of Basic Medical Sciences, College of Medicine Phoenix, 425 N. 5th Street, Phoenix, AZ 85004, USA.
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49
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He M, Zhou W, Li C, Guo M. MicroRNAs, DNA Damage Response, and Cancer Treatment. Int J Mol Sci 2016; 17:ijms17122087. [PMID: 27973455 PMCID: PMC5187887 DOI: 10.3390/ijms17122087] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/23/2016] [Accepted: 12/07/2016] [Indexed: 02/07/2023] Open
Abstract
As a result of various stresses, lesions caused by DNA-damaging agents occur constantly in each cell of the human body. Generally, DNA damage is recognized and repaired by the DNA damage response (DDR) machinery, and the cells survive. When repair fails, the genomic integrity of the cell is disrupted—a hallmark of cancer. In addition, the DDR plays a dual role in cancer development and therapy. Cancer radiotherapy and chemotherapy are designed to eliminate cancer cells by inducing DNA damage, which in turn can promote tumorigenesis. Over the past two decades, an increasing number of microRNAs (miRNAs), small noncoding RNAs, have been identified as participating in the processes regulating tumorigenesis and responses to cancer treatment with radiation therapy or genotoxic chemotherapies, by modulating the DDR. The purpose of this review is to summarize the recent findings on how miRNAs regulate the DDR and discuss the therapeutic functions of miRNAs in cancer in the context of DDR regulation.
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Affiliation(s)
- Mingyang He
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan 430072, China.
| | - Weiwei Zhou
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan 430072, China.
| | - Chuang Li
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan 430072, China.
| | - Mingxiong Guo
- Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, Wuhan 430072, China.
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50
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Jia L, Zhang S, Huang Y, Zheng Y, Gan Y. Trichostatin A increases radiosensitization of tongue squamous cell carcinoma via miR-375. Oncol Rep 2016; 37:305-312. [DOI: 10.3892/or.2016.5261] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 11/11/2016] [Indexed: 11/06/2022] Open
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