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Zhang T, Hu Y, Yang N, Yu S, Pu X. The microRNA-34 Family and Its Functional Role in Lung Cancer. Am J Clin Oncol 2024:00000421-990000000-00190. [PMID: 38700126 DOI: 10.1097/coc.0000000000001106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Lung cancer is one of the most common malignant tumors in humans and the leading cause of cancer-related deaths worldwide. The microRNA-34 (miR-34) family is dysregulated in various human cancers and is an important family of tumor suppressor genes among microRNAs. The miR-34 family is downregulated in lung cancer. It inhibits cell proliferation, metastasis, and invasion, arrests the cell cycle, and induces apoptosis or senescence by negatively regulating many oncogenes. It is commonly used to detect and treat lung cancer. This study describes the regulatory role of the miR-34 family in lung cancer and the associated research advances in treatment.
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Affiliation(s)
| | | | - Na Yang
- Department of Clinical Pharmacy, The Second People's Hospital of Huaihua, Huaihua
| | - Shaofu Yu
- Department of Clinical Pharmacy, The Second People's Hospital of Huaihua, Huaihua
| | - Xingxiang Pu
- The Second Department of Thoracic Medical Oncology, Hunan Cancer Hospital, Changsha, Hunan, China
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2
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Tang C, Qi J, Wu Y, Luo L, Wang Y, Wu Y, Shi X. Improving the prediction for the response to radiotherapy of clinical tumor samples by using combinatorial model of MicroRNA expression. Front Genet 2022; 13:1069112. [DOI: 10.3389/fgene.2022.1069112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/11/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose: Radiation therapy (RT) is one of the main treatments for cancer. The response to radiotherapy varies widely between individuals and some patients have poor response to RT treatment due to tumor radioresistance. Stratifying patients according to molecular signatures of individual tumor characteristics can improve clinical treatment. In here, we aimed to use clinical and genomic databases to develop miRNA signatures that can predict response to radiotherapy in various cancer types.Methods: We analyzed the miRNAs profiles using tumor samples treated with RT across eight types of human cancers from TCGA database. These samples were divided into response group (S, n = 224) and progressive disease group (R, n = 134) based on RT response of tumors. To enhance the discrimination for S and R samples, the predictive models based on binary logistic regression were developed to identify the best combinations of multiple miRNAs.Results: The miRNAs differentially expressed between the groups S and R in each caner type were identified. Total 47 miRNAs were identified in eight cancer types (p values <0.05, t-test), including several miRNAs previously reported to be associated with radiotherapy sensitivity. Functional enrichment analysis revealed that epithelial-to-mesenchymal transition (EMT), stem cell, NF-κB signal, immune response, cell death, cell cycle, and DNA damage response and DNA damage repair processes were significantly enriched. The cancer-type-specific miRNA signatures were identified, which consist of 2-13 of miRNAs in each caner type. Receiver operating characteristic (ROC) analyses showed that the most of individual miRNAs were effective in distinguishing responsive and non-responsive patients (the area under the curve (AUC) ranging from 0.606 to 0.889). The patient stratification was further improved by applying the combinatorial model of miRNA expression (AUC ranging from 0.711 to 0.992). Also, five miRNAs that were significantly associated with overall survival were identified as prognostic miRNAs.Conclusion: These mRNA signatures could be used as potential biomarkers selecting patients who will benefit from radiotherapy. Our study identified a series of miRNA that were differentially expressed between RT good responders and poor responders, providing useful clues for further functional assays to demonstrate a possible regulatory role in radioresistance.
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Fariha A, Hami I, Tonmoy MIQ, Akter S, Al Reza H, Bahadur NM, Rahaman MM, Hossain MS. Cell cycle associated miRNAs as target and therapeutics in lung cancer treatment. Heliyon 2022; 8:e11081. [PMID: 36303933 PMCID: PMC9593298 DOI: 10.1016/j.heliyon.2022.e11081] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/17/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022] Open
Abstract
Lung cancer is the primary cause of cancer related deaths worldwide. Limited therapeutic options and resistance to existing drugs are the major hindrances to the clinical success of this cancer. In the past decade, several studies showed the role of microRNA (miRNA) driven cell cycle regulation in lung cancer progression. Therefore, these small nucleotide molecules could be utilized as promising tools in lung cancer therapy. In this review, we highlighted the recent advancements in lung cancer therapy using cell cycle linked miRNAs. By highlighting the roles of the specific cell cycle core regulators affiliated miRNAs in lung cancer, we further outlined how these miRNAs can be explored in early diagnosis and treatment strategies to prevent lung cancer. With the provided information from our review, more medical efforts can ensure a potential breakthrough in miRNA-based lung cancer therapy.
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Affiliation(s)
- Atqiya Fariha
- Department of Biotechnology & Genetic Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Ithmam Hami
- Department of Biotechnology & Genetic Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | | | - Shahana Akter
- Department of Biotechnology & Genetic Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Hasan Al Reza
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka, Bangladesh
| | - Newaz Mohammed Bahadur
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Md. Mizanur Rahaman
- Department of Microbiology, University of Dhaka, Dhaka, Bangladesh,Corresponding author.
| | - Md Shahadat Hossain
- Department of Biotechnology & Genetic Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh,Corresponding author.
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Guo J, Jin K, Tang T, Liu HM, Xie YA. A new biomarker to enhance the radiosensitivity of hepatocellular cancer: miRNAs. Future Oncol 2022; 18:3217-3228. [PMID: 35968820 DOI: 10.2217/fon-2022-0136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aims: This review summarizes findings regarding miRNAs that modulate radiation in hepatocellular carcinoma (HCC) and evaluates their potential clinical therapeutic uses. Materials & methods: We searched the relevant English-language medical databases for papers on miRNAs and radiation therapy for tumors to identify miRNAs that are linked with radiosensitivity and radioresistance, focusing on those associated with HCC radiation. Results: There were 88 papers assessed for miRNAs associated with tumor radiation, 56 of which dealt with radiosensitization, 21 with radioresistance and 11 with radiosensitization for HCC. Conclusion: Further work in this area would enable future evaluation of radiation responses and the potential use of miRNAs as therapeutic agents in HCC patients.
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Affiliation(s)
- Ju Guo
- Graduate School of Guangxi Traditional Chinese Medical University, Nanning, Guangxi, 530299, PR China.,Guangxi Key Laboratory of Reproductive Health & Birth Defects Prevention, Nanning, Guangxi, 530002, PR China
| | - Kai Jin
- Graduate School of Guangxi Traditional Chinese Medical University, Nanning, Guangxi, 530299, PR China
| | - Ting Tang
- Graduate School of Guangxi Traditional Chinese Medical University, Nanning, Guangxi, 530299, PR China
| | - Hong-Mei Liu
- Department of Radiation Oncology, Affiliated Cancer Hospital of Guangxi Medical University & Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, PR China
| | - Yu-An Xie
- Graduate School of Guangxi Traditional Chinese Medical University, Nanning, Guangxi, 530299, PR China.,Guangxi Key Laboratory of Reproductive Health & Birth Defects Prevention, Nanning, Guangxi, 530002, PR China.,Experimental Research Department, Affiliated Cancer Hospital of Guangxi Medical University & Cancer Institute of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530021, PR China.,Guangxi Zhuang Autonomous Region Women & Children Care Hospital, Nanning, Guangxi, 530002, PR China
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5
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Gamage S, Hali M, Chen F, Kowluru A. CARD9 Mediates Pancreatic Islet Beta-Cell Dysfunction Under the Duress of Hyperglycemic Stress. Cell Physiol Biochem 2022; 56:120-137. [PMID: 35362297 PMCID: PMC9150799 DOI: 10.33594/000000508] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS Published evidence implicates Caspase recruitment domain containing protein 9 (CARD9) in innate immunity. Given its recently suggested roles in obesity and insulin resistance, we investigated its regulatory role(s) in the onset of islet beta cell dysfunction under chronic hyperglycemic (metabolic stress) conditions. METHODS Islets from mouse pancreas were isolated by the collagenase digestion method. Expression of CARD9 was suppressed in INS-1 832/13 cells by siRNA transfection using the DharmaFect1 reagent. The degree of activation of Rac1 was assessed by a pull-down assay kit. Interactions between CARD9, RhoGDIβ and Rac1 under metabolic stress conditions were determined by co-immunoprecipitation assay. The degree of phosphorylation of stress kinases was assessed using antibodies directed against phosphorylated forms of the respective kinases. RESULTS CARD9 expression is significantly increased following exposure to high glucose, not to mannitol (both at 20 mM; 24 hrs.) in INS-1 832/13 cells. siRNA-mediated knockdown of CARD9 significantly attenuated high glucose-induced activation of Rac1 and phosphorylation of p38MAPK and p65 subunit of NF-κB (RelA), without significantly impacting high glucose-induced effects on JNK1/2 and ERK1/2 activities. CARD9 depletion also suppressed high glucose-induced CHOP expression (a marker for endoplasmic reticulum stress) in these cells. Co-immunoprecipitation studies revealed increased association between CARD9-RhoGDIβ and decreased association between RhoGDIβ-Rac1 in cells cultured under high glucose conditions. CONCLUSION Based on these data, we conclude that CARD9 regulates activation of Rac1-p38MAPK-NFκB signaling pathway leading to functional abnormalities in beta cells under metabolic stress conditions.
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Affiliation(s)
- Suhadinie Gamage
- Biomedical Research Service, John D. Dingell VA Medical Center, Detroit, MI, USA
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA
| | - Mirabela Hali
- Biomedical Research Service, John D. Dingell VA Medical Center, Detroit, MI, USA
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA
| | - Fei Chen
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA
- Stony Brook Cancer Center, and Department of Pathology, Stony Brook University, Stony Brook, NY, USA
| | - Anjaneyulu Kowluru
- Biomedical Research Service, John D. Dingell VA Medical Center, Detroit, MI, USA,
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA
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6
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Wang C, Jia Q, Guo X, Li K, Chen W, Shen Q, Xu C, Fu Y. microRNA-34 Family: From Mechanism to Potential Applications. Int J Biochem Cell Biol 2022; 144:106168. [DOI: 10.1016/j.biocel.2022.106168] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/04/2022] [Accepted: 01/21/2022] [Indexed: 02/06/2023]
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Swati, Chadha VD. Role of epigenetic mechanisms in propagating off-targeted effects following radiation based therapies - A review. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2021; 787:108370. [PMID: 34083045 DOI: 10.1016/j.mrrev.2021.108370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/17/2022]
Abstract
Despite being an important diagnostic and treatment modality, ionizing radiation (IR) is also known to cause genotoxicity and multiple side effects leading to secondary carcinogenesis. While modern cancer radiation therapy has improved patient recovery and enhanced survival rates, the risk of radiation-related adverse effects has become a growing challenge. It is now well-accepted that IR-induced side effects are not exclusively restricted to exposed cells but also spread to distant 'bystander' cells and even to the unexposed progeny of the irradiated cells. These 'off-targeted' effects involve a plethora of molecular events depending on the type of radiation and tumor tissue background. While the mechanisms by which off-targeted effects arise remain obscure, emerging evidence based on the non-mendelian inheritance of various manifestations of them as well as their persistence for longer periods supports a contribution of epigenetic factors. This review focuses on the major epigenetic phenomena including DNA methylation, histone modifications, and small RNA mediated silencing and their versatile role in the manifestation of IR induced off-targeted effects. As short- and long-range communication vehicles respectively, the role of gap junctions and exosomes in spreading these epigenetic-alteration driven off-targeted effects is also discussed. Furthermore, this review emphasizes the possible therapeutic potentials of these epigenetic mechanisms and how beneficial outcomes could potentially be achieved by targeting various signaling molecules involved in these mechanisms.
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Affiliation(s)
- Swati
- Centre for Nuclear Medicine (U.I.E.A.S.T), South Campus, Panjab University, Sector 25, Chandigarh, 160014, India.
| | - Vijayta D Chadha
- Centre for Nuclear Medicine (U.I.E.A.S.T), South Campus, Panjab University, Sector 25, Chandigarh, 160014, India.
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Zeng RJ, Zheng CW, Chen WX, Xu LY, Li EM. Rho GTPases in cancer radiotherapy and metastasis. Cancer Metastasis Rev 2020; 39:1245-1262. [PMID: 32772212 DOI: 10.1007/s10555-020-09923-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/28/2020] [Indexed: 02/05/2023]
Abstract
Despite treatment advances, radioresistance and metastasis markedly impair the benefits of radiotherapy to patients with malignancies. Functioning as molecular switches, Rho guanosine triphosphatases (GTPases) have well-recognized roles in regulating various downstream signaling pathways in a wide range of cancers. In recent years, accumulating evidence indicates the involvement of Rho GTPases in cancer radiotherapeutic efficacy and metastasis, as well as radiation-induced metastasis. The functions of Rho GTPases in radiotherapeutic efficacy are divergent and context-dependent; thereby, a comprehensive integration of their roles and correlated mechanisms is urgently needed. This review integrates current evidence supporting the roles of Rho GTPases in mediating radiotherapeutic efficacy and the underlying mechanisms. In addition, their correlations with metastasis and radiation-induced metastasis are discussed. Under the prudent application of Rho GTPase inhibitors based on critical evaluations of biological contexts, targeting Rho GTPases can be a promising strategy in overcoming radioresistance and simultaneously reducing the metastatic potential of tumor cells.
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Affiliation(s)
- Rui-Jie Zeng
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
| | - Chun-Wen Zheng
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
| | - Wan-Xian Chen
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
| | - Li-Yan Xu
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China.
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, China.
| | - En-Min Li
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China.
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China.
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Multifunctional Roles of miR-34a in Cancer: A Review with the Emphasis on Head and Neck Squamous Cell Carcinoma and Thyroid Cancer with Clinical Implications. Diagnostics (Basel) 2020; 10:diagnostics10080563. [PMID: 32764498 PMCID: PMC7459507 DOI: 10.3390/diagnostics10080563] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 12/18/2022] Open
Abstract
MiR-34a belongs to the class of small non-coding regulatory RNAs and functions as a tumor suppressor. Under physiological conditions, miR-34a has an inhibitory effect on all processes related to cell proliferation by targeting many proto-oncogenes and silencing them on the post-transcriptional level. However, deregulation of miR-34a was shown to play important roles in tumorigenesis and processes associated with cancer progression, such as tumor-associated epithelial-mesenchymal transition, invasion, and metastasis. Moreover, further understanding of miR-34a molecular mechanisms in cancer are indispensable for the development of effective diagnosis and treatments. In this review, we summarized the current knowledge on miR-34a functions in human disease with an emphasis on its regulation and dysregulation, its role in human cancer, specifically head and neck squamous carcinoma and thyroid cancer, and emerging role as a disease diagnostic and prognostic biomarker and the novel therapeutic target in oncology.
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10
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Podralska M, Ciesielska S, Kluiver J, van den Berg A, Dzikiewicz-Krawczyk A, Slezak-Prochazka I. Non-Coding RNAs in Cancer Radiosensitivity: MicroRNAs and lncRNAs as Regulators of Radiation-Induced Signaling Pathways. Cancers (Basel) 2020; 12:E1662. [PMID: 32585857 PMCID: PMC7352793 DOI: 10.3390/cancers12061662] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/19/2020] [Accepted: 06/21/2020] [Indexed: 02/07/2023] Open
Abstract
Radiotherapy is a cancer treatment that applies high doses of ionizing radiation to induce cell death, mainly by triggering DNA double-strand breaks. The outcome of radiotherapy greatly depends on radiosensitivity of cancer cells, which is determined by multiple proteins and cellular processes. In this review, we summarize current knowledge on the role of microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), in determining the response to radiation. Non-coding RNAs modulate ionizing radiation response by targeting key signaling pathways, including DNA damage repair, apoptosis, glycolysis, cell cycle arrest, and autophagy. Additionally, we indicate miRNAs and lncRNAs that upon overexpression or inhibition alter cellular radiosensitivity. Current data indicate the potential of using specific non-coding RNAs as modulators of cellular radiosensitivity to improve outcome of radiotherapy.
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Affiliation(s)
- Marta Podralska
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznań, Poland;
| | - Sylwia Ciesielska
- Department of Systems Biology and Engineering, Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, 44-100 Gliwice, Poland;
| | - Joost Kluiver
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, 9700RB Groningen, The Netherlands; (J.K.); (A.v.d.B.)
| | - Anke van den Berg
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, 9700RB Groningen, The Netherlands; (J.K.); (A.v.d.B.)
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Wu Y, Pu N, Su W, Yang X, Xing C. Downregulation of miR-1 in colorectal cancer promotes radioresistance and aggressive phenotypes. J Cancer 2020; 11:4832-4840. [PMID: 32626530 PMCID: PMC7330696 DOI: 10.7150/jca.44753] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/27/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Colorectal cancer (CRC) remains to be one of the most common malignancies worldwide. Various studies have demonstrated that microRNAs (miRs) play a critical role in regulating cancer progression and sensitivity to chemoradiotherapy. miR-1 was found to be aberrantly expressed in CRC. However, it has not been fully elucidated whether miR-1 regulated CRC cell radioresistance. Methods: The expression of miR-1 was detected using quantitative real-time polymerase chain reaction in CRC tissues and cell lines. Colony survival and proliferation were determined using colony formation assay and MTT assay, respectively. Apoptosis and levels of related proteins, Bax and Bcl-2, were detected using flow cytometer assay and western blotting analysis. Migration and invasion were measured using wound healing assay and transwell invasion assay. The levels of invasion-associated proteins, E-cadherin, MMP2 and MMP9, were detected using western blotting analysis. Results: miR-1 was found to be downregulated in CRC tissues and cell lines compared with adjacent normal tissues. In vitro, miR-1 overexpression significantly suppressed colony survival and proliferation, and induced cell apoptosis under irradiation, but no apoptosis was detected without irradiation. Furthermore, miR-1 mimics promoted the expression of Bax and E-cadherin and decreased the expression of Bcl-2, MMP2 and MMP9, and apparently impaired the invasion and migration of CRC cells in synergy with radiotherapy. Conclusion: miR-1 enhanced the radiosensitivity of CRC cells by inducing cell apoptosis and the synergic inhibition of aggressive phenotypes, which may serve as a promising therapeutic target for CRC patients.
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Affiliation(s)
- Yong Wu
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu, 215004, China
| | - Ning Pu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Wenzhao Su
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu, 215004, China
| | - Xiaodong Yang
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu, 215004, China
| | - Chungen Xing
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Jiangsu, 215004, China
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Humphries BA, Wang Z, Yang C. MicroRNA Regulation of the Small Rho GTPase Regulators-Complexities and Opportunities in Targeting Cancer Metastasis. Cancers (Basel) 2020; 12:E1092. [PMID: 32353968 PMCID: PMC7281527 DOI: 10.3390/cancers12051092] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/24/2020] [Accepted: 04/25/2020] [Indexed: 02/07/2023] Open
Abstract
The small Rho GTPases regulate important cellular processes that affect cancer metastasis, such as cell survival and proliferation, actin dynamics, adhesion, migration, invasion and transcriptional activation. The Rho GTPases function as molecular switches cycling between an active GTP-bound and inactive guanosine diphosphate (GDP)-bound conformation. It is known that Rho GTPase activities are mainly regulated by guanine nucleotide exchange factors (RhoGEFs), GTPase-activating proteins (RhoGAPs), GDP dissociation inhibitors (RhoGDIs) and guanine nucleotide exchange modifiers (GEMs). These Rho GTPase regulators are often dysregulated in cancer; however, the underlying mechanisms are not well understood. MicroRNAs (miRNAs), a large family of small non-coding RNAs that negatively regulate protein-coding gene expression, have been shown to play important roles in cancer metastasis. Recent studies showed that miRNAs are capable of directly targeting RhoGAPs, RhoGEFs, and RhoGDIs, and regulate the activities of Rho GTPases. This not only provides new evidence for the critical role of miRNA dysregulation in cancer metastasis, it also reveals novel mechanisms for Rho GTPase regulation. This review summarizes recent exciting findings showing that miRNAs play important roles in regulating Rho GTPase regulators (RhoGEFs, RhoGAPs, RhoGDIs), thus affecting Rho GTPase activities and cancer metastasis. The potential opportunities and challenges for targeting miRNAs and Rho GTPase regulators in treating cancer metastasis are also discussed. A comprehensive list of the currently validated miRNA-targeting of small Rho GTPase regulators is presented as a reference resource.
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Affiliation(s)
- Brock A. Humphries
- Center for Molecular Imaging, Department of Radiology, University of Michigan, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
| | - Zhishan Wang
- Department of Toxicology and Cancer Biology, College of Medicine, University of Kentucky, 1095 V A Drive, Lexington, KY 40536, USA;
| | - Chengfeng Yang
- Department of Toxicology and Cancer Biology, College of Medicine, University of Kentucky, 1095 V A Drive, Lexington, KY 40536, USA;
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Yang QS, Li B, Xu G, Yang SQ, Wang P, Tang HH, Liu YY. Long noncoding RNA LINC00483/microRNA-144 regulates radiosensitivity and epithelial-mesenchymal transition in lung adenocarcinoma by interacting with HOXA10. J Cell Physiol 2019; 234:11805-11821. [PMID: 30714135 DOI: 10.1002/jcp.27886] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 11/08/2018] [Indexed: 01/03/2023]
Abstract
Lung adenocarcinoma (LAD) is the leading cause of cancer death worldwide. Long noncoding RNAs (lncRNAs) have been shown to play an important regulatory role in cancer biology, including that of LAD. The aim of this experiment was to explore the interaction of LINC00483, microRNA-144 (miR-144), and homeobox A10 (HOXA10), and their effects on radio sensitivity and epithelial-mesenchymal transition (EMT) of LAD. Initially, microarray analysis was used to screen out miRNAs and lncRNAs, as well as the differentially expressed genes related to LAD. Following the screening process, the targeting relationship of LINC00483, miR-144, and that of miR-144 and HOXA10 was determined. Following that, the expression of LINC00483, miR-144, messenger RNA (mRNA), as well as protein expression of HOXA10, MMP-2, MMP-9, E-cadherin, vimentin, and N-cadherin that followed in cells was determined. Also, the effect of LINC00483 on cell migration and invasion ability, and cell tumorigenic ability was detected. LINC00483 and HOXA10 were found to be upregulated whereas miR-144 was downregulated in LAD. Silencing of LINC00483 could competitively bind to miR-144, thereby upregulating HOXA10. LINC00483 or HOXA10 silencing led to decreased HOXA10, MMP-2, MMP-9, vimentin, and N-cadherin but elevated miR-144 and E-cadherin. Moreover, after being transfected with silenced LINC00483, the cell proliferation, migration, and invasion were inhibited with enhanced radiosensitivity. Consequently, the data of the study indicates that interference of LINC00483 weakens its competitive binding ability to miR-144, thus reducing HOXA10 expression, and enhancing radiosensitivity in LAD.
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Affiliation(s)
- Qing-Shan Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China
| | - Bin Li
- Department of Radiation Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China
| | - Ge Xu
- Department of Radiation Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China
| | - Si-Qi Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China
| | - Peng Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China
| | - Huai-Hui Tang
- Department of Radiation Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China
| | - Yuan-Yuan Liu
- Department of Internal Neurology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China
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14
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Chua CEL, Tang BL. miR-34a in Neurophysiology and Neuropathology. J Mol Neurosci 2018; 67:235-246. [DOI: 10.1007/s12031-018-1231-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 11/22/2018] [Indexed: 12/28/2022]
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15
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Liu M, Wang Z, Liu Q, Zhu H, Xu N. Expression of Micro-RNA-492 (MiR-492) in Human Cervical Cancer Cell Lines is Upregulated by Transfection with Wild-Type P53, Irradiation, and 5-Fluorouracil Treatment In Vitro. Med Sci Monit 2018; 24:7750-7758. [PMID: 30374014 PMCID: PMC6354641 DOI: 10.12659/msm.911585] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background The status of p53 is critical to the chemoradiosensitivity of cervical cancer cells. Wild-type p53 is essential to orchestrate the cellular response to cytotoxic stimuli. Our previous data illustrated that cervical cancer patients whose specimens overexpressed microR-492 (miR-492) were highly sensitive to concurrent chemoradiation. Although p53 activation has been reported to upregulate miR-492 by a miRNA profiling assay in lung cancer cells, the transcriptional regulation of miR-492 in cervical cancer cells remains poorly understood. Therefore, we aimed to decipher the relationship between p53 and miR-492 in cervical cancer cells. Material/Methods The expression of p53 and miR-492 in cervical cancer cell lines was measured by western blot and real-time PCR. After cells were transfected with wild-type p53 plasmid or were treated by irradiation and 5-fluorouracil (5-FU), the expression changes of p53 as well as miR-492 were examined by western blot and real-time PCR. The putative p53 binding site of miR-492 was first analyzed by bioinformatics tools, then validated by chromatin immunoprecipitation and dual-luciferase reporter assays. Results We found that miR-492 was upregulated in cells with wild-type p53 compared to cells with mutant p53. Transfection of wild-type p53 plasmid or treatments with cytotoxic reagents including irradiation and 5-FU all induced miR-492 overexpression. Bioinformatics analysis and experimental validations further proved p53 interacted with miR-492 promoter directly. Conclusions In cervical cancer cells, p53 activated miR-492 expression transcriptionally.
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Affiliation(s)
- Mei Liu
- Laboratory of Cell and Molecular Biology and State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (mainland)
| | - Zaozao Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital and Institute, Beijing, China (mainland)
| | - Qiao Liu
- Key Laboratory of Experimental Teratology (Ministry of Education), Department of Molecular Medicine and Genetics, School of Basic Medicine Sciences, Shandong University, Jinan, Shandong, China (mainland)
| | - Hongxia Zhu
- Laboratory of Cell and Molecular Biology & State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China (mainland)
| | - Ningzhi Xu
- Laboratory of Cell and Molecular Biology and State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (mainland)
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16
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Li J, Liu K, Zhang T, Yang Z, Wang R, Chen G, Kang M. A comprehensive investigation using meta-analysis and bioinformatics on miR-34a-5p expression and its potential role in head and neck squamous cell carcinoma. Am J Transl Res 2018; 10:2246-2263. [PMID: 30210668 PMCID: PMC6129509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 07/14/2018] [Indexed: 06/08/2023]
Abstract
HNSCC is the sixth most common cancer worldwide and is characterized as an aggressive, malignant tumor. MiR-34a-5p (miR-34a) expression has been strongly linked to HNSCC development. However, the exact target gene of miRNA-34a-as well as its biological and mechanistic pathways-are unclear. It is critical that the clinical value of HNSCC receive further study. We conducted a continuous variable, meta-analysis from data found in the cancer literature as well as that provided by the Cancer Genome Atlas (TCGA) to estimate miR-34a expression in HNSCC. Next, TCGA database, microarray, and MiRWalk were all used to predict the target gene of miR-34a in HNSCC. Then, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were used to explore the underlying molecular mechanism of miR-34a in HNSCC. Finally, we used Spearman's analysis and survival curves to identify the roles of related target genes involved in significant pathways during the development of HNSCC. Expression levels of miR-34a in HNSCC were significant lower than those in normal tissues (P<0.05) and summary receiver operating characteristic (sROC) was 0.72. The collective results obtained from KEGG and GO indicated that miR-34a may be involved in the development of HNSCC via known cancer pathways, including the p53 and/or PI3K-Akt signalling pathways. Our results suggested miR-34a has potential use as a novel, non-invasive and highly sensitive biomarker for diagnostic in HNSCC. Finally, it likely plays an essential role in the deterioration and ultimate tumorigenesis of HNSCC through determined cancer pathways.
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Affiliation(s)
- Jixi Li
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021, Guangxi, P. R. China
- Guangxi Tumor Radiation Therapy Clinical Medical Research CenterNanning 530021, Guangxi, P. R. China
| | - Kang Liu
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021, Guangxi, P. R. China
- Guangxi Tumor Radiation Therapy Clinical Medical Research CenterNanning 530021, Guangxi, P. R. China
| | - Tingting Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021, Guangxi, P. R. China
- Guangxi Tumor Radiation Therapy Clinical Medical Research CenterNanning 530021, Guangxi, P. R. China
| | - Zhendong Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021, Guangxi, P. R. China
- Guangxi Tumor Radiation Therapy Clinical Medical Research CenterNanning 530021, Guangxi, P. R. China
| | - Rensheng Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021, Guangxi, P. R. China
- Guangxi Tumor Radiation Therapy Clinical Medical Research CenterNanning 530021, Guangxi, P. R. China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021, P. R. China
| | - Min Kang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021, Guangxi, P. R. China
- Guangxi Tumor Radiation Therapy Clinical Medical Research CenterNanning 530021, Guangxi, P. R. China
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17
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He X, Yang A, McDonald DG, Riemer EC, Vanek KN, Schulte BA, Wang GY. MiR-34a modulates ionizing radiation-induced senescence in lung cancer cells. Oncotarget 2017; 8:69797-69807. [PMID: 29050242 PMCID: PMC5642517 DOI: 10.18632/oncotarget.19267] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/09/2017] [Indexed: 12/30/2022] Open
Abstract
MicroRNAs (miRNAs) are a new class of gene expression regulators that have been implicated in tumorigenesis and modulation of the responses to cancer treatment including that of human non-small cell lung cancer (NSCLC). However, the role of miR-34a in ionizing radiation (IR)-induced senescence in NSCLC cells remains poorly understood. Here we report that IR-induced premature senescence correlates with upregulation of miR-34a expression in NSCLC cells. Ectopic overexpression of miR-34a by transfection with synthetic miR-34a mimics markedly enhances IR-induced senescence, whereas inhibition of miR-34a by transfection with a synthetic miR-34a inhibitor attenuates IR-induced senescence. Clonogenic assays reveal that treatment with miR-34a mimics augments IR-induced cell killing in human NSCLC cells. Mechanistically, we found that the senescence-promoting effect of miR-34a is associated with a dramatic down-regulation of c-Myc (Myc) expression, suggesting that miR-34a may promote IR-induced senescence via targeting Myc. In agreement with this suggestion, knockdown of Myc expression by RNAi recapitulates the senescence-promoting effect of miR-34a and enhances IR-induced cell killing in NSCLC cells. Collectively, these results demonstrate a previously unrecognized role for miR-34a in modulating IR-induced senescence in human NSCLC cells and suggest that pharmacological intervention of miR-34a expression may represent a new therapeutic strategy for improving the efficacy of lung cancer radiotherapy.
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Affiliation(s)
- Xiaoyuan He
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Aimin Yang
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Daniel G McDonald
- Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Ellen C Riemer
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Kenneth N Vanek
- Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Bradley A Schulte
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Gavin Y Wang
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA.,Cancer Genes and Molecular Regulation Program of Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA
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18
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Role of HDM2 Gene in Radio-Sensitivity of Esophageal Cancer Cell Lines to Irradiation. INTERNATIONAL JOURNAL OF CANCER MANAGEMENT 2017. [DOI: 10.5812/ijcm.8950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Jafari N, Abediankenari S. MicroRNA-34 dysregulation in gastric cancer and gastric cancer stem cell. Tumour Biol 2017; 39:1010428317701652. [PMID: 28468587 DOI: 10.1177/1010428317701652] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Gastric cancer is a major cause of cancer mortality worldwide, with a low survival rate for patients with advanced forms of the disease. Over the recent decades, the investigation of the pathophysiological mechanisms of tumourigenesis has opened promising avenues to understand some of the complexities of cancer treatment. However, tumour regeneration and metastasis impose great difficulty for gastric cancer cure. In recent years, cancer stem cells - a small subset of tumour cells in many cancers - have become a major focus of cancer research. Cancer stem cells are capable of self-renewal and are known to be responsible for tumour initiation, metastasis, therapy resistance and cancer recurrence. Recent studies have revealed the key role of microRNAs - small noncoding RNAs regulating gene expression - in these processes. MicroRNAs play crucial roles in the regulation of a wide range of biological processes in a post-transcriptional manner, though their expression is dysregulated in most malignancies, including gastric cancer. In this article, we review the consequences of aberrant expression of microRNA-34 in cancer and cancer stem cells, with a specific focus on the miR-34 dysregulation in gastric cancer and gastric cancer stem cells. We address the critical effects of the aberrant expression of miR-34 and its target genes in maintaining cancer stem cell properties. Information collection and discussion about the advancements in gastric cancer stem cells and microRNAs can be useful for providing novel insights into patient treatment.
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Affiliation(s)
- Narjes Jafari
- Immunogenetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeid Abediankenari
- Immunogenetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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20
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miRNAs as Biomarkers and Therapeutic Targets in Non-Small Cell Lung Cancer: Current Perspectives. Target Oncol 2017; 12:179-200. [DOI: 10.1007/s11523-017-0478-5] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Zheng L, Chen J, Zhou Z, He Z. miR-195 enhances the radiosensitivity of colorectal cancer cells by suppressing CARM1. Onco Targets Ther 2017; 10:1027-1038. [PMID: 28255246 PMCID: PMC5325097 DOI: 10.2147/ott.s125067] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND microRNAs (miRNAs) can regulate the sensitivity of cancer cells to chemotherapy and radiotherapy. Aberrant expression of miR-195 has been found to be involved in colorectal cancer (CRC); however, its function and underlying mechanism in the radioresistance of CRC remains unclear. METHODS The levels of miR-195 and CARM1 were detected by quantitative reverse transcription-polymerase chain reaction and Western blot analysis in HCT-116 and HT-29 cells, respectively. Colony survival and apoptosis were determined by clonogenic assay and flow cytometry analysis, respectively. The apoptosis-related proteins Bax, Bcl-2, and γ-H2AX were detected using Western blot. The targets of miR-195 were identified by bioinformatic prediction and luciferase reporter assays. CRC cells in vitro and in vivo were exposed to different doses of X-ray radiations. RESULTS miR-195 was downregulated, and CARM1 was upregulated in HCT-116 and HT-29 cells. miR-195 overexpression or CARM1 knockdown suppressed colony survival, induced apoptosis, promoted expression of Bax and γ-H2AX, and inhibited Bcl-2 expression in CRC cells. CARM1 was identified and validated to be a functional target of miR-195. Moreover, restored expression of CARM1 reversed the enhanced radiosensitivity of CRC cells induced by miR-195. Furthermore, miR-195 increased the sensitivity of CRC cells to radiation in vivo. CONCLUSION miR-195 enhances radiosensitivity of CRC cells through suppressing CARM1. Therefore, miR-195 acts as a potential regulator of radioresistance for CRC cells and as a promising therapeutic target for CRC patients.
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Affiliation(s)
- Li Zheng
- Department of General Surgery, Huaihe Hospital of Henan University, Kaifeng, People's Republic of China
| | - Jiangtao Chen
- Department of General Surgery, Huaihe Hospital of Henan University, Kaifeng, People's Republic of China
| | - Zhongyong Zhou
- Department of General Surgery, Huaihe Hospital of Henan University, Kaifeng, People's Republic of China
| | - Zhikuan He
- Department of General Surgery, Huaihe Hospital of Henan University, Kaifeng, People's Republic of China
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22
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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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23
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Tutar Y, Özgür A, Tutar E, Tutar L, Pulliero A, Izzotti A. Regulation of oncogenic genes by MicroRNAs and pseudogenes in human lung cancer. Biomed Pharmacother 2016; 83:1182-1190. [PMID: 27551766 DOI: 10.1016/j.biopha.2016.08.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/04/2016] [Accepted: 08/16/2016] [Indexed: 01/15/2023] Open
Abstract
Lung cancer is one of the most common mortal cancer types both for men and women. Several different biomarkers have been analyzed to reveal lung cancer prognosis pathways for developing efficient therapeutics and diagnostic agents. microRNAs (miRNAs) and pseudogenes are critical biomarkers in lung cancer and alteration of their expression levels has been identified in each step of lung cancer tumorigenesis. miRNAs and pseudogenes are crucial gene regulators in normal cells as well as in lung cancer cells, and they have both oncogenic and tumor-suppressive roles in lung cancer tumorigenesis. In this study, we have determined the relationship between lung cancer related oncogenes and miRNAs along with pseudogenes in lung cancer, and the results indicate their potential as biological markers for diagnostic and therapeutic purposes.
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Affiliation(s)
- Yusuf Tutar
- Cumhuriyet University, Faculty of Pharmacy, Department of Basic Sciences, Division of Biochemistry, Sivas, Turkey.
| | - Aykut Özgür
- Gaziosmanpaşa University, Faculty of Natural Sciences and Engineering, Department of Bioengineering, Tokat, Turkey
| | - Esen Tutar
- Kahramanmaraş Sütçü İmam University, Graduate School of Natural and Applied Sciences, Department of Bioengineering and Sciences, Kahramanmaraş, Turkey
| | - Lütfi Tutar
- Kahramanmaraş Sütçü İmam University, Faculty of Science and Letters, Department of Biology, Kahramanmaraş, Turkey
| | | | - Alberto Izzotti
- Department of Health Sciences, University of Genoa, Italy; Mutagenesis Unit, IRCCS University Hospital San Martino-IST, National Institute for Cancer Research, Genoa, Italy
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24
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Ohno SI, Itano K, Harada Y, Asada K, Oikawa K, Kashiwazako M, Okuyama H, Kumagai K, Takanashi M, Sudo K, Ikeda N, Kuroda M. Development of Novel Small Hairpin RNAs That do not Require Processing by Dicer or AGO2. Mol Ther 2016; 24:1278-89. [PMID: 27109632 PMCID: PMC5088761 DOI: 10.1038/mt.2016.81] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 04/04/2016] [Indexed: 01/08/2023] Open
Abstract
The innate cytokine response to nucleic acid is the most challenging problem confronting the practical use of nucleic acid medicine. The degree of stimulation of the innate cytokine response strongly depends on the length of the nucleic acid. In this study, we developed a 30-nucleotide single-strand RNA, termed "guide hairpin RNA (ghRNA, ghR)", that has a physiological function similar to that of miRNA and siRNA. The ghR caused no innate cytokine response either in vitro or in vivo. In addition, its structure does not contain a passenger strand seed sequence, reducing the unwanted gene repression relative to existing short RNA reagents. Systemic and local injection of ghR-form miR-34a (ghR-34a) suppressed tumor growth in a mouse model of RAS-induced lung cancer. Furthermore, Dicer and AGO2 are not required for ghR-34a function. This novel RNA interference (RNAi) technology may provide a novel, safe, and effective nucleic acid drug platform that will increase the clinical usefulness of nucleic acid therapy.
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Affiliation(s)
- Shin-ichiro Ohno
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
| | - Karen Itano
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
| | - Yuichirou Harada
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
| | - Koutaro Asada
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
| | - Keiki Oikawa
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
| | - Mikie Kashiwazako
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
| | - Hikaru Okuyama
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
| | - Katsuyoshi Kumagai
- Department of Animal Research Center,
Tokyo Medical University, Tokyo, Japan
| | | | - Katsuko Sudo
- Department of Animal Research Center,
Tokyo Medical University, Tokyo, Japan
| | - Norihiko Ikeda
- Department of Respiratory Surgery,
Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology,
Tokyo Medical University, Tokyo, Japan
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25
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Leukemia Stem Cell-Released Microvesicles Promote the Survival and Migration of Myeloid Leukemia Cells and These Effects Can Be Inhibited by MicroRNA34a Overexpression. Stem Cells Int 2016; 2016:9313425. [PMID: 27127521 PMCID: PMC4835649 DOI: 10.1155/2016/9313425] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/07/2016] [Indexed: 11/18/2022] Open
Abstract
Leukemia stem cells (LSCs) play the major role in relapse of acute myeloid leukemia (AML). Recent evidence indicates that microvesicles (MVs) released from cancer stem cells can promote tumor growth and invasion. In this study, we investigated whether LSCs-released MVs (LMVs) can regulate the malignance of AML cells and whether overexpression of tumor suppressive microRNA (miR), miR34a, is able to interrupt this process. LSCs were transfected with miRNA control (miRCtrl) or miR34a mimic for producing LMVs, respectively, defined as LMVsmiRCtrl and LMVsmiR34a. The effect of miR34a transfection on LSC proliferation and the effects of LMVsmiRCtrl or LMVsmiR34a on the proliferation, migration, and apoptosis of AML cells (after LSC depletion) were determined. The levels of miR34a targets, caspase-3 and T cell immunoglobulin mucin-3 (Tim-3), were analyzed. Results showed that (1) LMVsmiRCtrl promoted proliferation and migration and inhibited apoptosis of AML cells, which were associated with miR34a deficit; (2) transfection of miR34a mimic inhibited LSC proliferation and increased miR34a level in LMVsmiR34a; (3) LMVsmiR34a produced opposite effects as compared with LMVsmiRCtrl, which were associated with the changes of caspase-3 and Tim-3 levels. In summary, LMVs support AML cell malignance and modulating miR34a could offer a new approach for the management of AML.
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Yahyanejad S, Theys J, Vooijs M. Targeting Notch to overcome radiation resistance. Oncotarget 2016; 7:7610-28. [PMID: 26713603 PMCID: PMC4884942 DOI: 10.18632/oncotarget.6714] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 12/07/2015] [Indexed: 12/25/2022] Open
Abstract
Radiotherapy represents an important therapeutic strategy in the treatment of cancer cells. However, it often fails to eliminate all tumor cells because of the intrinsic or acquired treatment resistance, which is the most common cause of tumor recurrence. Emerging evidences suggest that the Notch signaling pathway is an important pathway mediating radiation resistance in tumor cells. Successful targeting of Notch signaling requires a thorough understanding of Notch regulation and the context-dependent interactions between Notch and other therapeutically relevant pathways. Understanding these interactions will increase our ability to design rational combination regimens that are more likely to be safe and effective. Here we summarize the role of Notch in mediating resistance to radiotherapy, the different strategies to block Notch in cancer cells and how treatment scheduling can improve tumor response. Finally, we discuss a need for reliable Notch related biomarkers in specific tumors to measure pathway activity and to allow identification of a subset of patients who are likely to benefit from Notch targeted therapies.
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Affiliation(s)
- Sanaz Yahyanejad
- Department of Radiotherapy (MAASTRO)/GROW, School for Developmental Biology and Oncology, Maastricht University, Maastricht, The Netherlands
| | - Jan Theys
- Department of Radiotherapy (MAASTRO)/GROW, School for Developmental Biology and Oncology, Maastricht University, Maastricht, The Netherlands
| | - Marc Vooijs
- Department of Radiotherapy (MAASTRO)/GROW, School for Developmental Biology and Oncology, Maastricht University, Maastricht, The Netherlands
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27
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Roth SA, Knutsen E, Fiskaa T, Utnes P, Bhavsar S, Hald ØH, Løkke C, Mestdagh P, Johansen SD, Flægstad T, Einvik C. Next generation sequencing of microRNAs from isogenic neuroblastoma cell lines isolated before and after treatment. Cancer Lett 2015; 372:128-36. [PMID: 26708804 DOI: 10.1016/j.canlet.2015.11.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 11/16/2015] [Accepted: 11/17/2015] [Indexed: 10/22/2022]
Abstract
Neuroblastoma is a pediatric cancer of the developing sympathetic nervous system. High risk neuroblastoma patients typically undergo an initial remission in response to treatment, followed by recurrence of aggressive tumors that have become refractory to further treatment. Recent works have underlined the involvement of microRNAs (miRNAs) in neuroblastoma development and evolution of drug resistance. In this study we have used deep sequencing technology to identify miRNAs differentially expressed in neuroblastoma cell lines isolated from 6 patients at diagnosis and at relapse after intensive treatments. This approach revealed a panel of 42 differentially expressed miRNAs, 8 of which were upregulated and 34 were downregulated. Most strikingly, the 14q32 miRNA clusters encode 22 of the downregulated miRNAs. Reduced expression of 14q32 miRNAs in tumors associated with poor prognosis factors was confirmed in a cohort consisting of 226 primary neuroblastomas. In order to gain insight into the nature of the genes that may be affected by the differentially expressed miRNAs we utilized Ingenuity Pathway Analysis (IPA). This analysis revealed several biological functions and canonical pathways associated with cancer progression and drug resistance. The results of this study contribute to the identification of miRNAs involved in the complex processes of surviving therapeutic treatment and developing drug resistance in neuroblastoma.
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Affiliation(s)
- Sarah Andrea Roth
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway
| | - Erik Knutsen
- RNA and Molecular Pathology (RAMP), Department of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway
| | - Tonje Fiskaa
- RNA and Molecular Pathology (RAMP), Department of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway
| | - Peter Utnes
- Department of Pediatrics, Division of Child and Adolescent Health, UNN - University Hospital of North-Norway, NO-9038 Tromsø, Norway
| | - Swapnil Bhavsar
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway
| | - Øyvind H Hald
- Department of Pediatrics, Division of Child and Adolescent Health, UNN - University Hospital of North-Norway, NO-9038 Tromsø, Norway
| | - Cecilie Løkke
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway
| | - Pieter Mestdagh
- Center for Medical Genetics Ghent, Ghent University, Ghent, Belgium
| | - Steinar D Johansen
- RNA and Molecular Pathology (RAMP), Department of Medical Biology, Faculty of Health Sciences, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway; Marine Genomics Group, Faculty of Biosciences and Aquaculture, University of Nordland, Bodø, Norway
| | - Trond Flægstad
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway; Department of Pediatrics, Division of Child and Adolescent Health, UNN - University Hospital of North-Norway, NO-9038 Tromsø, Norway
| | - Christer Einvik
- Pediatric Research Group, Department of Clinical Medicine, Faculty of Health Science, The Arctic University of Norway - UiT, NO-9037 Tromsø, Norway; Department of Pediatrics, Division of Child and Adolescent Health, UNN - University Hospital of North-Norway, NO-9038 Tromsø, Norway.
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28
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Cortez MA, Valdecanas D, Niknam S, Peltier HJ, Diao L, Giri U, Komaki R, Calin GA, Gomez DR, Chang JY, Heymach JV, Bader AG, Welsh JW. In Vivo Delivery of miR-34a Sensitizes Lung Tumors to Radiation Through RAD51 Regulation. MOLECULAR THERAPY. NUCLEIC ACIDS 2015; 4:e270. [PMID: 26670277 PMCID: PMC5014539 DOI: 10.1038/mtna.2015.47] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 10/11/2015] [Indexed: 01/20/2023]
Abstract
MiR-34a, an important tumor-suppressing microRNA, is downregulated in several types of cancer; loss of its expression has been linked with unfavorable clinical outcomes in non-small-cell lung cancer (NSCLC), among others. MiR-34a represses several key oncogenic proteins, and a synthetic mimic of miR-34a is currently being tested in a cancer trial. However, little is known about the potential role of miR-34a in regulating DNA damage response and repair. Here, we demonstrate that miR-34a directly binds to the 3' untranslated region of RAD51 and regulates homologous recombination, inhibiting double-strand-break repair in NSCLC cells. We further demonstrate the therapeutic potential of miR-34a delivery in combination with radiotherapy in mouse models of lung cancer. Collectively, our results suggest that administration of miR-34a in combination with radiotherapy may represent a novel strategy for treating NSCLC.
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Affiliation(s)
- Maria Angelica Cortez
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - David Valdecanas
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sharareh Niknam
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Lixia Diao
- Department of Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Uma Giri
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ritsuko Komaki
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Daniel R Gomez
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Joe Y Chang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - John Victor Heymach
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - James William Welsh
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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29
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ZHANG TIAN, YUAN YAWEI, REN CHEN, DU SHASHA, CHEN JIARONG, SUN QUANQUAN, LIU ZHENGJUN. Recurrent inflammatory myofibroblastic tumor of the inguinal region: A case report and review of the literature. Oncol Lett 2015; 10:675-680. [PMID: 26622552 PMCID: PMC4509014 DOI: 10.3892/ol.2015.3297] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 04/24/2015] [Indexed: 12/17/2022] Open
Abstract
Inflammatory myofibroblastic tumors (IMTs) of the inguinal region are exceptionally rare. The current study reported the case of a 49 year-old male patient with IMT, who presented with a fever, night sweats, anorexia, loss of weight and frequent urination. Computed tomography (CT) revealed a lesion occupying the soft tissue of the right inguinal region and surgery was performed to resect the lesion. Histopathological analysis of the lesion revealed a composition of spindle and inflammatory cells, including plasma cells and lymphocytes. In addition, immunohistochemical analysis demonstrated that the tumor cells were positive for CD34, vimentin, actin, Ki-67, B cell lymphoma-2, CD99, epithelial membrane antigen and CD38; however, tumor cells were negative for CD117, desmin, anaplastic lymphoma kinase and creatine kinase. Thus, the patient was diagnosed with IMT and was advised to return for regular follow-up appointments. Subsequently, the patient developed a local recurrence 12 months following the initial surgery. Of note, the histopathological characteristics of the recurrent lesions were consistent with those of the initial specimen. Thus, a second surgery was performed, followed by fractionated radiotherapy (FRT). At 3 and 6 months following the FRT, magnetic resonance imaging scans did not indicate tumor recurrence or metastasis. In conclusion, surgical excision is the current recommended treatment for IMT; however, for cases similar to that of the current study, which are not successfully controlled by surgical excision, radiotherapy should be considered and long-term follow-up is essential.
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Affiliation(s)
- TIAN ZHANG
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
- Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, P.R. China
| | - YAWEI YUAN
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - CHEN REN
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - SHASHA DU
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - JIARONG CHEN
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - QUANQUAN SUN
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - ZHENGJUN LIU
- Department of Vascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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30
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Effects of sorafenib on lung metastasis in rats with hepatocellular carcinoma: the role of microRNAs. Tumour Biol 2015; 36:8455-63. [DOI: 10.1007/s13277-015-3565-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 05/13/2015] [Indexed: 01/08/2023] Open
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31
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Non-small-cell lung cancer and miRNAs: novel biomarkers and promising tools for treatment. Clin Sci (Lond) 2015; 128:619-34. [PMID: 25760961 DOI: 10.1042/cs20140530] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Lung cancer is the leading cause of cancer-related death worldwide, with approximately 80–85% of cases being non-small-cell lung cancer (NSCLC). The miRNAs are small non-coding RNAs that regulate gene expression at a post-transcriptional level by either degradation or inhibition of the translation of target genes. Evidence is mounting that miRNAs exert pivotal effects in the development and progression of human malignancies, including NSCLC. A better understanding of the role that miRNAs play in the disease will contribute to the development of new diagnostic biomarkers and individualized therapeutic tools. In the present review, we briefly describe the role of miRNAs in NSCLC as well as the possible future of these discoveries in clinical applications.
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32
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Wang S, Cao M, Deng X, Xiao X, Yin Z, Hu Q, Zhou Z, Zhang F, Zhang R, Wu Y, Sheng W, Zeng Y. Degradable hyaluronic acid/protamine sulfate interpolyelectrolyte complexes as miRNA-delivery nanocapsules for triple-negative breast cancer therapy. Adv Healthc Mater 2015; 4:281-90. [PMID: 25044638 DOI: 10.1002/adhm.201400222] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 05/29/2014] [Indexed: 01/07/2023]
Abstract
Metastatic relapse is a leading cause of cancer-associated death and one of the major obstacles for effective therapy against triple-negative breast cancer. To address this problem, a miRNA-delivering nanocapsule technology based on hyaluronic acid (HA)/protamine sulfate (PS) interpolyelectrolyte complexes (HP-IPECs) is developed for efficient encapsulation and intracellular delivery microRNA-34a (miR-34a), which is a potent endogenous tumor suppressor of breast cancer. The nanocapsules are successfully generated through a self-assembly approach mediated by an electrostatic interaction. In vitro and in vivo experiments illustrate that miR-34a can be efficiently encapsulated into HP-IPECs and delivered into breast cancer cells or breast cancer tissues. Nanocomplex-assisted delivery of miR-34a induces cell apoptosis and suppresses migration, proliferation, and tumor growth of breast cancer cells via targeting CD44 and a Notch-1-signaling pathway. The obtained results suggest that HP-IPECs have a great potential as a biodegradable vector for microRNA-based therapy against triple-negative breast cancer.
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Affiliation(s)
- Shihua Wang
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Minjun Cao
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Xiongwei Deng
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
- National Center for Nanoscience and Technology; No.11 Beiyitiao Zhongguancun Beijing 100190 P. R. China
| | - Xiangqian Xiao
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Zhaoxia Yin
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Qin Hu
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Zhixiang Zhou
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Fang Zhang
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Ruirui Zhang
- National Center for Nanoscience and Technology; No.11 Beiyitiao Zhongguancun Beijing 100190 P. R. China
| | - Yan Wu
- National Center for Nanoscience and Technology; No.11 Beiyitiao Zhongguancun Beijing 100190 P. R. China
| | - Wang Sheng
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
| | - Yi Zeng
- College of Life Science and Bioengineering; Beijing University of Technology; No. 100 Pingleyuan Beijing 100124 P. R. China
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33
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Liang J, Li Y, Daniels G, Sfanos K, De Marzo A, Wei J, Li X, Chen W, Wang J, Zhong X, Melamed J, Zhao J, Lee P. LEF1 Targeting EMT in Prostate Cancer Invasion Is Regulated by miR-34a. Mol Cancer Res 2015; 13:681-8. [PMID: 25587085 DOI: 10.1158/1541-7786.mcr-14-0503] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 12/30/2014] [Indexed: 12/16/2022]
Abstract
UNLABELLED The microRNA-34a (miR-34a), a tumor-suppressive microRNA (miRNA), is implicated in epithelial-mesenchymal transition (EMT) and cancer stem cells. Lymphoid enhancer-binding factor-1 (LEF1) is a key transcription factor in the Wnt signaling pathway, and has been suggested to be involved in regulation of cell proliferation and invasion. Here, the molecular mechanism of miR-34a and LEF1 in cooperatively regulating prostate cancer cell invasion is described. Molecular profiling analysis of miRNA levels in prostate cancer cells revealed a negative correlation between miR-34a and LEF1 expression, and the downregulation of LEF1 by miR-34a was confirmed by luciferase assays. Furthermore, miR-34a specifically repressed LEF1 expression through direct binding to its 3'-untranslated regions (3'-UTR). miR-34a modulated the levels of LEF1 to regulate EMT in prostate cancer cells. Functionally, miR-34a negatively correlated with the migration and invasion of prostate cancer cells through LEF1. An analysis of miR-34a expression levels in matched human tumor and benign tissues demonstrated consistent and statistically significant downregulation of miR-34a in primary prostate cancer specimens. These data strongly suggest that miR-34a/LEF1 regulation of EMT plays an important role in prostate cancer migration and invasion. IMPLICATIONS The miR-34a-LEF1 axis represents a potential molecular target for novel therapeutic strategies in prostate cancer.
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Affiliation(s)
- Jiaqian Liang
- Department of Pathology, New York University School of Medicine, New York, New York. Department of Urology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yirong Li
- Department of Pathology, New York University School of Medicine, New York, New York
| | - Garrett Daniels
- Department of Pathology, New York University School of Medicine, New York, New York
| | - Karen Sfanos
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Angelo De Marzo
- Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Jianjun Wei
- Department of Pathology, Northwestern University, Chicago, Illinois
| | - Xin Li
- NYU Cancer Institute, New York University School of Medicine, New York, New York. Department of Urology, New York University School of Medicine, New York, New York. Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Wenqiang Chen
- Pediatric Lab of Medical Science Experiment Center, Guangxi Medical University, Nanning, Guangxi, China
| | - Jinhua Wang
- NYU Cancer Institute, New York University School of Medicine, New York, New York
| | - Xuelin Zhong
- Department of Pathology, New York University School of Medicine, New York, New York
| | - Jonathan Melamed
- Department of Pathology, New York University School of Medicine, New York, New York
| | - Jun Zhao
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Peng Lee
- Department of Pathology, New York University School of Medicine, New York, New York. NYU Cancer Institute, New York University School of Medicine, New York, New York. Department of Urology, New York University School of Medicine, New York, New York. New York Harbor Healthcare System, New York University School of Medicine, New York, New York.
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34
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Lai M, Du G, Shi R, Yao J, Yang G, Wei Y, Zhang D, Xu Z, Zhang R, Li Y, Li Z, Wang L. MiR-34a inhibits migration and invasion by regulating the SIRT1/p53 pathway in human SW480 cells. Mol Med Rep 2015; 11:3301-7. [PMID: 25585539 PMCID: PMC4368136 DOI: 10.3892/mmr.2015.3182] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 05/21/2014] [Indexed: 12/11/2022] Open
Abstract
MicroRNA-34a (miR-34a) is a direct transcriptional target of p53, and is downregulated in several different types of cancer. However, the underlying mechanism of the miR-34a effects in colorectal cancer is not well understood. In this study, we explored the role of miR-34a in cell invasion, migration, and apoptosis. Transient overexpression of miR-34a in SW480 cells caused a severe decrease in cell migration and invasion (both, p<0.05) compared to the control groups. Combining miR-34a transfection with 5-fluorouracil (5-FU) treatment further enhanced the inhibition in SW480 cell migration and invasion (both, p<0.05) compared to 5-FU treatment alone. These cellular changes were associated with upregulation of acetylated‑p53 (ac-p53) and p21 and downregulation of sirtuin 1 (SIRT1). These data demonstrate that miR-34a regulates the expression of a number of critical proteins involved in apoptosis, proliferation and the response to chemotherapy. In summary, miR-34a increases the sensitivity of colon cancer cells to 5-FU treatment through specific regulation of the SIRT1/p53 pathway.
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Affiliation(s)
- Mingguang Lai
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Gang Du
- Department of Internal Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China
| | - Ruiyue Shi
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Jun Yao
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Genhua Yang
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Yue Wei
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Dingguo Zhang
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Zhenglei Xu
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Ru Zhang
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Yingxue Li
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
| | - Zicheng Li
- Department of Internal Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China
| | - Lisheng Wang
- Department of Gastroenterology, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
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35
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Misso G, Di Martino MT, De Rosa G, Farooqi AA, Lombardi A, Campani V, Zarone MR, Gullà A, Tagliaferri P, Tassone P, Caraglia M. Mir-34: a new weapon against cancer? MOLECULAR THERAPY-NUCLEIC ACIDS 2014; 3:e194. [PMID: 25247240 PMCID: PMC4222652 DOI: 10.1038/mtna.2014.47] [Citation(s) in RCA: 381] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Accepted: 08/11/2014] [Indexed: 02/07/2023]
Abstract
The microRNA(miRNA)-34a is a key regulator of tumor suppression. It controls the
expression of a plethora of target proteins involved in cell cycle, differentiation
and apoptosis, and antagonizes processes that are necessary for basic cancer cell
viability as well as cancer stemness, metastasis, and chemoresistance. In this
review, we focus on the molecular mechanisms of miR-34a-mediated tumor suppression,
giving emphasis on the main miR-34a targets, as well as on the principal regulators
involved in the modulation of this miRNA. Moreover, we shed light on the miR-34a role
in modulating responsiveness to chemotherapy and on the phytonutrients-mediated
regulation of miR-34a expression and activity in cancer cells. Given the broad
anti-oncogenic activity of miR-34a, we also discuss the substantial benefits of a new
therapeutic concept based on nanotechnology delivery of miRNA mimics. In fact, the
replacement of oncosuppressor miRNAs provides an effective strategy against tumor
heterogeneity and the selective RNA-based delivery systems seems to be an excellent
platform for a safe and effective targeting of the tumor.
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Affiliation(s)
- Gabriella Misso
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Maria Teresa Di Martino
- Department of Experimental and Clinical Medicine, Magna Graecia University and Medical OncologyUnit, T. Campanella Cancer Center, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Giuseppe De Rosa
- Department of Pharmacy, University "Federico II" of Naples, Naples, Italy
| | - Ammad Ahmad Farooqi
- Laboratory for Translational Oncology and Personalized Medicine, Rashid Latif Medical College, Lahore, Pakistan
| | - Angela Lombardi
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Virginia Campani
- Department of Pharmacy, University "Federico II" of Naples, Naples, Italy
| | - Mayra Rachele Zarone
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Annamaria Gullà
- Department of Experimental and Clinical Medicine, Magna Graecia University and Medical OncologyUnit, T. Campanella Cancer Center, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Pierosandro Tagliaferri
- Department of Experimental and Clinical Medicine, Magna Graecia University and Medical OncologyUnit, T. Campanella Cancer Center, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Pierfrancesco Tassone
- 1] Department of Experimental and Clinical Medicine, Magna Graecia University and Medical OncologyUnit, T. Campanella Cancer Center, Salvatore Venuta University Campus, Catanzaro, Italy [2] Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA
| | - Michele Caraglia
- 1] Department of Experimental and Clinical Medicine, Magna Graecia University and Medical OncologyUnit, T. Campanella Cancer Center, Salvatore Venuta University Campus, Catanzaro, Italy [2] Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, USA
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36
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Zhang T, Sun Q, Liu T, Chen J, Du S, Ren C, Liao G, Yuan Y. MiR-451 increases radiosensitivity of nasopharyngeal carcinoma cells by targeting ras-related protein 14 (RAB14). Tumour Biol 2014; 35:12593-9. [PMID: 25201065 DOI: 10.1007/s13277-014-2581-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 08/29/2014] [Indexed: 01/10/2023] Open
Abstract
Radioresistance severely impedes the treatment of nasopharyngeal carcinoma (NPC). Recent evidence has shown that the abnormal expression of microRNAs (miRNAs) contributes to radiosensitivity. The aim of this study, therefore, was to investigate whether expression of the miRNAs correlated with radiosensitivity in the context of NPC. Quantitative reverse transcription polymerase chain reaction (RT-PCR) was used to quantify miR-451 expression in two representative NPC cell lines. The role of miR-451 in NPC radiosensitivity was analyzed using a colony formation assay and an immunofluorescence assay with overexpression of miR-451 in NPC cells. Luciferase reporter assays, RT-PCR, and Western blot were performed to confirm the target of miR-451. High levels of miR-451 expression enhanced radiosensitivity in NPC cells by inhibiting the repair of irradiation-induced double-strand breaks (DSBs) and increasing apoptosis. The results also demonstrated that miR-451 directly targeted ras-related protein 14 (RAB14). Downregulation of RAB14 partially replicated the miR-451-mediated DSBs induced by ionizing radiation (IR). MiR-451 could be a potential target for enhancing radiosensitivity of NPC cells by targeting RAB14.
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Affiliation(s)
- Tian Zhang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou Da Dao Bei, Guangzhou, Guangdong, 510515, People's Republic of China,
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37
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Jiang ZC, Tang XM, Zhao YR, Zheng L. A functional variant at miR-34a binding site in toll-like receptor 4 gene alters susceptibility to hepatocellular carcinoma in a Chinese Han population. Tumour Biol 2014; 35:12345-52. [PMID: 25179842 DOI: 10.1007/s13277-014-2547-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 08/25/2014] [Indexed: 01/22/2023] Open
Abstract
Toll-like receptor 4 (TLR4) plays a key role in prompting the innate or immediate response. A growing body of evidence suggests that genetic variants of TLR4 gene were associated with the development of cancers. This study aimed to investigate the relationship of a functional variant (rs1057317) at microRNA-34a (miR-34a) binding site in toll-like receptor 4 gene and the risk of hepatocellular carcinoma. A single center-based case-control study was conducted. In this study, the polymerase chain reaction (PCR) and direct sequencing were used to genotype sequence variants of TLR4 in 426 hepatocellular carcinoma cases and 438 controls. The modification of rs1057317 on the binding of hsa-miR-34a to TLR4 messenger RNA (mRNA) was measured by luciferase activity assay. Individuals carrying the AA genotypes for the rs1057317 were associated significantly with increased risk of hepatocellular carcinoma comparing with those carrying wild-type homozygous CC genotypes (adjusted odds ratio [OR] by sex and age, from 1.116 to 2.452, P = 0.013). The activity of the reporter vector was lower in the reporter vector carrying C allele than the reporter vector carrying A allele. Furthermore, the expression of TLR4 was detected in the peripheral blood mononucleated cell of hepatocellular carcinoma (HCC) patients, suggesting that mRNA and protein levels of TLR4 might be associated with SNP rs1057317. Collectively, these results suggested that the risk of hepatocellular carcinoma was associated with a functional variant at miR-34a binding site in toll-like receptor 4 gene. miR-34a/TLR4 axis may play an important role in the development of hepatocellular carcinoma.
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Affiliation(s)
- Zi-Cheng Jiang
- Department of Infectious Diseases, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, China
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38
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Mao A, Liu Y, Zhang H, Di C, Sun C. microRNA expression and biogenesis in cellular response to ionizing radiation. DNA Cell Biol 2014; 33:667-79. [PMID: 24905898 DOI: 10.1089/dna.2014.2401] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Increasing evidence demonstrates that the expression levels of microRNAs (miRNAs) significantly change upon ionizing radiation (IR) and play a critical role in cellular response to IR. Although several radiation responsive miRNAs and their targets have been identified, little is known about how miRNAs expression and biogenesis is regulated by IR-caused DNA damage response (DDR). Hence, in this review, we summarize miRNA expression and biogenesis in cellular response to IR and mainly elucidate the regulatory mechanisms of miRNA expression and biogenesis from different aspects including ataxia-telangiectasia mutated (ATM) kinase, p53/p63/p73 family and other potential factors. Furthermore, we focus on ΔNp73, which might be a potential regulator of miRNA expression and biogenesis in cellular response to IR. miRNAs could effectively activate the IR-induced DDR and modulate the radiation response and cellular radiosensitivity, which have an important potential clinical application. Therefore, thoroughly understanding the regulatory mechanisms of miRNAs expression and biogenesis in radiation response will provide new insights for clinical cancer radiotherapy.
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Affiliation(s)
- Aihong Mao
- 1 Department of Heavy Ion Radiation Medicine, Institute of Modern Physics , Chinese Academy of Sciences, Lanzhou, China
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39
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Gao Y, Gao F, Ma JL, Sun WZ, Song LP. The potential clinical applications and prospects of microRNAs in lung cancer. Onco Targets Ther 2014; 7:901-6. [PMID: 24940074 PMCID: PMC4051813 DOI: 10.2147/ott.s62227] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Lung cancer is the major cause of cancer deaths worldwide due to its late diagnosis and poor outcome. Understanding genomic medicine may widen our vision into the oncogenesis of lung cancer and may open the door to improvements in the clinical management of lung cancer. It is well known that almost half of all genes are regulated by microRNAs (miRNAs). This review focuses on the role of miRNAs in lung cancer and also touches on the value of miRNA-based novel therapies for lung cancers.
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Affiliation(s)
- Ying Gao
- Department of Radiotherapy Oncology, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, China
| | - Fei Gao
- Department of Neurology, First Affiliated Hospital of Xi’an Medical University, Xi’an, People’s Republic of China
| | - Jin-lu Ma
- Department of Radiotherapy Oncology, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, China
| | - Wen-ze Sun
- Department of Radiotherapy Oncology, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, China
| | - Li-ping Song
- Department of Radiotherapy Oncology, First Affiliated Hospital of Medical College of Xi’an Jiaotong University, China
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40
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Rokavec M, Li H, Jiang L, Hermeking H. The p53/miR-34 axis in development and disease. J Mol Cell Biol 2014; 6:214-30. [DOI: 10.1093/jmcb/mju003] [Citation(s) in RCA: 239] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Zhang D, Zhou J, Dong M. Dysregulation of microRNA-34a expression in colorectal cancer inhibits the phosphorylation of FAK via VEGF. Dig Dis Sci 2014; 59:958-67. [PMID: 24370784 DOI: 10.1007/s10620-013-2983-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Accepted: 12/04/2013] [Indexed: 01/07/2023]
Abstract
BACKGROUND MicroRNAs (miRs) are small non-coding RNAs that play important roles in cancer development where they can act as oncogenes or as tumor-suppressors. MiR-34a is a tumor suppressor that is frequently downregulated in a number of tumor types. However, little is known about the role of miR-34a in colorectal cancer (CRC). AIM This study aims to show the dysregulation of miR-34a in CRC and to characterize the function and mechanism of miR-34a in CRC cell lines. METHODS The expression of miR-34a was detected using real-time PCR on CRC tissues and adjacent non-tumorous tissues. The ELISA was used to assess vascular endothelial growth factor (VEGF). The focal adhesion kinase (FAK) and phosphorylated FAK Y397 (pY397FAK) were measured by Western blot. The functions of miR-34a in vivo were measured by migration, invasion, CCK-8 assay and flow cytometry. RESULTS MiR-34a was significantly downregulated and pY397FAK was upregulated in CRC cancer tissues. It plays an important role in inhibiting migration and invasion and in increasing apoptosis of CRC cells. Bioinformatic analysis suggested that VEGF may be a target of miR-34a, and this hypothesis was proved by ELISA and RT-PCR. The level of pY397FAK that could be activated by VEGF was downregulated in miR-34a overexpression CRC cell lines. The phosphorylation of FAK at 397 sites in miR-34a-stable cell lines was completely rescued by extra VEGF treatment. CONCLUSION MiR-34a is frequently downregulated in CRC and modulates the phosphorylation of FAK by negatively regulating VEGF.
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Affiliation(s)
- Danhua Zhang
- Department of General Surgery, Gastrointestinal Surgery, The First Hospital, China Medical University, Shenyang, 110001, China,
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Cellini F, Morganti AG, Genovesi D, Silvestris N, Valentini V. Role of microRNA in response to ionizing radiations: evidences and potential impact on clinical practice for radiotherapy. Molecules 2014; 19:5379-401. [PMID: 24879584 PMCID: PMC6271831 DOI: 10.3390/molecules19045379] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/17/2014] [Accepted: 04/23/2014] [Indexed: 01/06/2023] Open
Abstract
MicroRNAs (miRNA) are small, non-coding, RNAs with gene expression regulator roles. As an important class of regulators of many cellular pathways, miRNAs are involved in many signaling pathways and DNA damage repair processes, affecting cellular radiosensitivity. Their role has led to interest in oncological implications to improve treatment results. MiRNAs represent a great opportunity to enhance the efficacy of radiotherapy treatments-they can be used to profile the radioresistance of tumors before radiotherapy, monitor their response throughout the treatment, thus helping to select intensification strategies, and also to define the final response to therapy along with risks of recurrence or metastatization. Even though many interesting studies support such potential, nowadays most studies on patient data are limited to experiments profiling tumor aggressiveness and response to radiotherapy. Moreover many studies report different although not conflicting results on the miRNAs evaluated for each tumor type. Without doubt, the clinical potential of such molecules for radiotherapy is striking and of high interest.
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Affiliation(s)
- Francesco Cellini
- Radiation Oncology Department, Policlinico Universitario Campus Bio-Medico; Via Álvaro del Portillo 200, 00144 Rome, Italy.
| | - Alessio G Morganti
- Radiotherapy Department, Università Cattolica del Sacro Cuore; Fondazione di Ricerca e Cura "Giovanni Paolo II", Largo Agostino Gemelli 1, 86100 Campobasso, Italy.
| | - Domenico Genovesi
- Radiation Oncology Department, Università "G. D'Annunzio"; Via dei Vestini 31, 66100 Chieti, Italy.
| | - Nicola Silvestris
- Medical Oncology Unit - Cancer Institute "Giovanni Paolo II"; Viale Orazio Flacco, 65, 70124 Bari, Italy.
| | - Vincenzo Valentini
- Radiation Oncology Department, Università Cattolica del Sacro Cuore; L.go Francesco Vito 1, 00168 Roma, Italy.
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Shi Y, Liu C, Liu X, Tang DG, Wang J. The microRNA miR-34a inhibits non-small cell lung cancer (NSCLC) growth and the CD44hi stem-like NSCLC cells. PLoS One 2014; 9:e90022. [PMID: 24595209 PMCID: PMC3942411 DOI: 10.1371/journal.pone.0090022] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 01/24/2014] [Indexed: 12/20/2022] Open
Abstract
Lung cancer is among the most lethal malignancies with a high metastasis and recurrence rate, which is probably due to the existence of lung cancer stem cells (CSCs). CSCs in many tumors including non-small cell lung cancer (NSCLC) have been identified using adhesion molecular CD44, either individually or in combination with other marker(s). MicroRNAs (miRNAs) regulate both normal stem cells and CSCs and dysregulation of miRNAs has been implicated in tumorigenesis. Recently, miR-34a was found to be downregulated in NSCLC cells but the biological functions of miR-34a in regulating NSCLC cell behavior have not been extensively studied. Here we show that transfection of synthetic miR-34a, but not the negative control (NC) miRNA oligonucleotides (oligos) in three NSCLC cell lines, i.e., A549, H460, and H1299, inhibited their holoclone formation, clonogenic expansion, and tumor regeneration in vivo. Furthermore, the lentiviral vector-mediated overexpression of miR-34a in purified CD44hi H460 cells also inhibited tumor outgrowth. In contrast, expression of miR-34a antagomirs (i.e., antisense oligos) in the CD44lo H460 cells promoted tumor development. Our study shows that miR-34a is a negative regulator of the tumorigenic properties of NSCLC cells and CD44hi lung CSCs, and establishes a strong rationale for developing miR-34a as a novel therapeutic agent against NSCLC.
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Affiliation(s)
- Yang Shi
- Department of Pathology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Molecular Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Science Park, Smithville, Texas, United States of America
- Cancer Stem Cell Institute, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Can Liu
- Department of Molecular Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Science Park, Smithville, Texas, United States of America
| | - Xin Liu
- Department of Molecular Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Science Park, Smithville, Texas, United States of America
| | - Dean G. Tang
- Department of Molecular Carcinogenesis, The University of Texas M.D. Anderson Cancer Center, Science Park, Smithville, Texas, United States of America
- Cancer Stem Cell Institute, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Junchen Wang
- Department of Pathology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Cancer Stem Cell Institute, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- * E-mail:
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Chakraborty S, Mazumdar M, Mukherjee S, Bhattacharjee P, Adhikary A, Manna A, Chakraborty S, Khan P, Sen A, Das T. Restoration of p53/miR-34a regulatory axis decreases survival advantage and ensures Bax-dependent apoptosis of non-small cell lung carcinoma cells. FEBS Lett 2014; 588:549-59. [PMID: 24444609 DOI: 10.1016/j.febslet.2013.11.040] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 11/12/2013] [Accepted: 11/24/2013] [Indexed: 12/29/2022]
Abstract
Tumor-suppressive miR-34a, a direct target of p53, has been shown to target several molecules of cell survival pathways. Here, we show that capsaicin-induced oxidative DNA damage culminates in p53 activation to up-regulate expression of miR-34a in non-small cell lung carcinoma (NSCLC) cells. Functional analyses further indicate that restoration of miR-34a inhibits B cell lymphoma-2 (Bcl-2) protein expression to withdraw the survival advantage of these resistant NSCLC cells. In such a proapoptotic cellular milieu, where drug resistance proteins are also down-regulated, p53-transactivated Bcl-2 associated X protein (Bax) induces apoptosis via the mitochondrial death cascade. Our results suggest that p53/miR-34a regulatory axis might be critical in sensitizing drug-resistant NSCLC cells.
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Affiliation(s)
- Samik Chakraborty
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Minakshi Mazumdar
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Shravanti Mukherjee
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Pushpak Bhattacharjee
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Arghya Adhikary
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Argha Manna
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Sreeparna Chakraborty
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Poulami Khan
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Aparna Sen
- Lady Brabourne College, P-1/2, Suhrawardy Ave, Kolkata, India
| | - Tanya Das
- Division of Molecular Medicine, Bose Institute, P1/12, CIT Scheme VIIM, Kolkata 700054, West Bengal, India.
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Kofman AV, Kim J, Park SY, Dupart E, Letson C, Bao Y, Ding K, Chen Q, Schiff D, Larner J, Abounader R. microRNA-34a promotes DNA damage and mitotic catastrophe. Cell Cycle 2013; 12:3500-11. [PMID: 24091633 DOI: 10.4161/cc.26459] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Efficient and error-free DNA repair is critical for safeguarding genome integrity, yet it is also linked to radio- and chemoresistance of malignant tumors. miR-34a, a potent tumor suppressor, influences a large set of p53-regulated genes and contributes to p53-mediated apoptosis. However, the effects of miR-34a on the processes of DNA damage and repair are not entirely understood. We explored tet-inducible miR-34a-expressing human p53 wild-type and R273H p53 mutant GBM cell lines, and found that miR-34a influences the broad spectrum of 53BP1-mediated DNA damage response. It escalates both post-irradiation and endogenous DNA damage, abrogates radiation-induced G 2/M arrest and drastically increases the number of irradiated cells undergoing mitotic catastrophe. Furthermore, miR-34a downregulates 53BP1 and inhibits its recruitment to the sites of DNA double-strand breaks. We conclude that whereas miR-34a counteracts DNA repair, it also contributes to the p53-independent elimination of distressed cells, thus preventing the rise of genomic instability in tumor cell populations. These properties of miR-34a can potentially be exploited for DNA damage-effecting therapies of malignancies.
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Affiliation(s)
- Alexander V Kofman
- Department of Microbiology, Immunology and Cancer Biology; University of Virginia; Charlottesville, VA USA; Aging-Cancer Interface Group; LDS Medical Center; St. Petersburg, Russia
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