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Salehi M, Kamali MJ, Arab D, Safaeian N, Ashuori Z, Maddahi M, Latifi N, Jahromi AM. Exosomal microRNAs in regulation of tumor cells resistance to apoptosis. Biochem Biophys Rep 2024; 37:101644. [PMID: 38298209 PMCID: PMC10827597 DOI: 10.1016/j.bbrep.2024.101644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/06/2024] [Accepted: 01/09/2024] [Indexed: 02/02/2024] Open
Abstract
Exosomes are a type of extracellular vesicle that contains bioactive molecules that can be secreted by most cells. Nevertheless, the content of these cells differs depending on the cell from which they originate. The exosome plays a crucial role in modulating intercellular communication by conveying molecular messages to neighboring or distant cells. Cancer-derived exosomes can transfer several types of molecules into the tumor microenvironment, including high levels of microRNA (miRNA). These miRNAs significantly affect cell proliferation, angiogenesis, apoptosis resistance, metastasis, and immune evasion. Increasing evidence indicates that exosomal miRNAs (exomiRs) are crucial to regulating cancer resistance to apoptosis. In cancer cells, exomiRs orchestrate communication channels between them and their surrounding microenvironment, modulating gene expression and controlling apoptosis signaling pathways. This review presents an outline of present-day knowledge of the mechanisms that affect target cells and drive cancer resistance to apoptosis. Also, our study looks at the regulatory role of exomiRs in mediating intercellular communication between tumor cells and surrounding microenvironmental cells, specifically stromal and immune cells, to evade therapy-induced apoptosis.
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Affiliation(s)
- Mohammad Salehi
- Department of Medical Genetics, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
- Student Research Committee, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mohammad Javad Kamali
- Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Daniyal Arab
- Department of Human Genetics, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Naghme Safaeian
- Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Zahra Ashuori
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Moein Maddahi
- Faculty of Dentistry, Yeditepe University, Istanbul, Turkey
| | - Narges Latifi
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Iran
| | - Amir Moein Jahromi
- School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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Li X, Jing Z, Li X, Liu L, Xiao X, Zhong Y, Ren Z. The role of exosomes in cancer-related programmed cell death. Immunol Rev 2024; 321:169-180. [PMID: 37950410 DOI: 10.1111/imr.13286] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Cancer arises from the growth and division of uncontrolled erroneous cells. Programmed cell death (PCD), or regulated cell death (RCD), includes natural processes that eliminate damaged or abnormal cells. Dysregulation of PCD is a hallmark of cancer, as cancer cells often evade cell death and continue to proliferate. Exosomes nanoscale extracellular vesicles secreted by different types of cells carrying a variety of molecules, including nucleic acids, proteins, and lipids, to have indispensable role in the communication between cells, and can influence various cellular processes, including PCD. Exosomes have been shown to modulate PCD in cancer cells by transferring pro- or antideath molecules to neighboring cells. Additionally, exosomes can facilitate the spread of PCD to surrounding cancer cells, making them promising in the treatment of various cancers. The exosomes' diagnostic potential in cancer is also an active area of research. Exosomes can be isolated from a wide range of bodily fluids and tissues, such as blood and urine, and can provide a noninvasive way to monitor cancer progression and treatment response. Furthermore, exosomes have also been employed as a delivery system for therapeutic agents. By engineering exosomes to carry drugs or other therapeutic molecules, they can be targeted specifically to cancer cells, reducing toxicity to healthy tissues. Here, we discussed exosomes in the diagnosis and prevention of cancers, tumor immunotherapy, and drug delivery, as well as in different types of PCD.
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Affiliation(s)
- Xin Li
- Department of Gastrointestinal Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Zuoqian Jing
- Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, China
| | - Xuejie Li
- Department of Urology, The First Hospital of China Medical University, Shenyang, China
| | - Lei Liu
- Department of Ophthalmology, Guangdong provincial People's hospital, Guangzhou, China
| | - Xiang Xiao
- Boonshoft School of Medicine, Wright State University, Dayton, Ohio, USA
| | - Yifan Zhong
- Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, China
| | - Zihan Ren
- Department of Otorhinolaryngology, The First Hospital of China Medical University, Shenyang, China
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3
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D'Agostino E, Muro A, Sgueglia G, Massaro C, Dell'Aversana C, Altucci L. Exosomal MicroRNAs: Comprehensive Methods from Exosome Isolation to miRNA Extraction and Purity Analysis. Methods Mol Biol 2023; 2595:75-92. [PMID: 36441455 DOI: 10.1007/978-1-0716-2823-2_5] [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: 11/29/2022]
Abstract
Exosomes are extracellular vesicles secreted by cells with a key role in a wide range of biological processes including cancer. These vesicles are involved in intercellular communication and deliver diverse cargo molecules, including miRNAs (exo-miRNAs), to recipient cells affecting their physiology. Exo-miRNAs have a role in promoting tumor, progression, metastatization, and remodeling of tumor microenvironment, therefore making them interesting biomarkers to study.Here we provide a detailed technical protocol for exosome isolation (which can be applied to cell culture as well as physiological fluids), validation of their vesicular identity, miRNA extraction, and quantitative and qualitative analysis to evaluate the sample purity and concentration.
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Affiliation(s)
- Erika D'Agostino
- Department of Precision Medicine, Università degli studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Annamaria Muro
- Department of Precision Medicine, Università degli studi della Campania "Luigi Vanvitelli", Naples, Italy.,Università degli studi di Napoli "Federico II", Naples, Italy
| | - Giulia Sgueglia
- Department of Precision Medicine, Università degli studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Crescenzo Massaro
- Department of Precision Medicine, Università degli studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Carmela Dell'Aversana
- Department of Precision Medicine, Università degli studi della Campania "Luigi Vanvitelli", Naples, Italy. .,Institute Experimental Endocrinology and Oncology 'Gaetano Salvatore' (IEOS)-National Research Council (CNR), Naples, Italy.
| | - Lucia Altucci
- Department of Precision Medicine, Università degli studi della Campania "Luigi Vanvitelli", Naples, Italy. .,BIOGEM, Ariano Irpino, Italy.
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Nguyen TTP, Suman KH, Nguyen TB, Nguyen HT, Do DN. The Role of miR-29s in Human Cancers—An Update. Biomedicines 2022; 10:biomedicines10092121. [PMID: 36140219 PMCID: PMC9495592 DOI: 10.3390/biomedicines10092121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/25/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that directly bind to the 3’ untranslated region (3’-UTR) of the target mRNAs to inhibit their expression. The miRNA-29s (miR-29s) are suggested to be either tumor suppressors or oncogenic miRNAs that are strongly dysregulated in various types of cancer. Their dysregulation alters the expression of their target genes, thereby exerting influence on different cellular pathways including cell proliferation, apoptosis, migration, and invasion, thereby contributing to carcinogenesis. In the present review, we aimed to provide an overview of the current knowledge on the miR-29s biological network and its functions in cancer, as well as its current and potential applications as a diagnostic and prognostic biomarker and/or a therapeutic target in major types of human cancer.
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Affiliation(s)
- Thuy T. P. Nguyen
- Division of Radiation and Genome Stability, Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Kamrul Hassan Suman
- Department of Fisheries, Ministry of Fisheries and Livestock, Dhaka 1205, Bangladesh
| | - Thong Ba Nguyen
- Department of Anatomy, Biochemistry, and Physiology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA
| | - Ha Thi Nguyen
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam
- Center for Molecular Biology, College of Medicine and Pharmacy, Duy Tan University, Danang 550000, Vietnam
- Correspondence: (H.T.N.); (D.N.D.)
| | - Duy Ngoc Do
- Department of Animal Science and Aquaculture, Dalhousie University, Truro, NS B2N 5E3, Canada
- Correspondence: (H.T.N.); (D.N.D.)
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Gurudas Shivji G, Dhar R, Devi A. Role of Exosomes and its emerging therapeutic applications in the pathophysiology of Non-Infectious disease. Biomarkers 2022; 27:534-548. [PMID: 35451890 DOI: 10.1080/1354750x.2022.2067233] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Exosomes are a type of small Extracellular Vesicles (EVs) and play crucial roles in cancer and other diseases. Exosomes role in various diseases has been studied as they regulate intercellular communication and are obtained from almost any part of the body. Exosomes use is complicated in diseases as they promote pathogenesis but also act as a very good therapeutic agent in most diseases. The presence of a complex molecular cargo consisting of nucleic acids (DNA, RNA, miRNA, siRNA, etc.,) makes it a very good delivery agent and acts as a biomarker for many cancers, cardiovascular and neurodegenerative diseases. They can be used to selectively target cells and activate immune cell responses depending on the source obtained. Exosomes based immunotherapy is an area of gaining importance due to the proteins present in them and their specificity to the targeted cells. The role of exosomes in the diagnosis and treatment of non-infectious diseases is discussed in detail in this article.
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Affiliation(s)
- Gauresh Gurudas Shivji
- Cancer Biology and Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, Chengalpattu District, Tamilnadu 603203, India
| | - Rajib Dhar
- Cancer Biology and Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, Chengalpattu District, Tamilnadu 603203, India
| | - Arikketh Devi
- Cancer Biology and Stem Cell Biology Laboratory, Department of Genetic Engineering, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Potheri, Kattankulathur, Chengalpattu District, Tamilnadu 603203, India
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Extracellular Vesicle-Mediated Mitochondrial Reprogramming in Cancer. Cancers (Basel) 2022; 14:cancers14081865. [PMID: 35454774 PMCID: PMC9032679 DOI: 10.3390/cancers14081865] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/01/2022] [Accepted: 04/02/2022] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Mitochondria are important organelles involved in several key cellular processes including energy production and cell death regulation. For this reason, it is unsurprising that mitochondrial function and structure are altered in several pathological states including cancer. Cancer cells present variate strategies to generate sufficient energy to sustain their high proliferation rates. These adaptative strategies can be mediated by extracellular signals such as extracellular vesicles. These vesicles can alter recipient cellular behavior by delivering their molecular cargo. This review explores the different EV-mediated mitochondrial reprogramming mechanisms supporting cancer survival and progression. Abstract Altered metabolism is a defining hallmark of cancer. Metabolic adaptations are often linked to a reprogramming of the mitochondria due to the importance of these organelles in energy production and biosynthesis. Cancer cells present heterogeneous metabolic phenotypes that can be modulated by signals originating from the tumor microenvironment. Extracellular vesicles (EVs) are recognized as key players in intercellular communications and mediate many of the hallmarks of cancer via the delivery of their diverse biological cargo molecules. Firstly, this review introduces the most characteristic changes that the EV-biogenesis machinery and mitochondria undergo in the context of cancer. Then, it focuses on the EV-driven processes which alter mitochondrial structure, composition, and function to provide a survival advantage to cancer cells in the context of the hallmarks of cancers, such as altered metabolic strategies, migration and invasiveness, immune surveillance escape, and evasion of apoptosis. Finally, it explores the as yet untapped potential of targeting mitochondria using EVs as delivery vectors as a promising cancer therapeutic strategy.
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Georgantzoglou N, Pergaris A, Masaoutis C, Theocharis S. Extracellular Vesicles as Biomarkers Carriers in Bladder Cancer: Diagnosis, Surveillance, and Treatment. Int J Mol Sci 2021; 22:ijms22052744. [PMID: 33803085 PMCID: PMC7963171 DOI: 10.3390/ijms22052744] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/24/2022] Open
Abstract
Exosomes are extracellular vesicles, enriched in biomolecular cargo consisting of nucleic acids, proteins, and lipids, which take part in intercellular communication and play a crucial role in both physiologic functions and oncogenesis. Bladder cancer is the most common urinary malignancy and its incidence is steadily rising in developed countries. Despite the high five-year survival in patients diagnosed at early disease stage, survival substantially drops in patients with muscle-invasive or metastatic disease. Therefore, early detection of primary disease as well as recurrence is of paramount importance. The role that exosomal biomarkers could play in bladder cancer patient diagnosis and surveillance, as well as their potential therapeutic applications, has not been extensively studied in this malignancy. In the present review, we summarize all relevant data obtained so far from cell lines, animal models, and patient biofluids and tissues. Current literature suggests that urine is a rich source of extracellular vesicle-derived biomarkers, compared with blood and bladder tissue samples, with potential applications in bladder cancer management. Further studies improving sample collection procedures and optimizing purification and analytical methods should augment bladder cancer diagnostic, prognostic, and therapeutic input of extracellular vesicles biomarkers in the future.
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Jia Y, Ding X, Zhou L, Zhang L, Yang X. Mesenchymal stem cells-derived exosomal microRNA-139-5p restrains tumorigenesis in bladder cancer by targeting PRC1. Oncogene 2020; 40:246-261. [PMID: 33122828 DOI: 10.1038/s41388-020-01486-7] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 09/10/2020] [Accepted: 09/21/2020] [Indexed: 11/09/2022]
Abstract
microRNAs (miRNAs) can be delivered to tumor cells where they exert their function via mesenchymal stem cells (MSCs)-derived exosomes. This study investigated exosomal transfer of miR-139-5p to bladder cancer cells and their role in the regulation of tumorigenesis. The dysregulation of polycomb repressor complex 1 (PRC1) in bladder cancer was characterized by RNA quantification, and its functional significance in bladder cancer cells was identified by loss-of-function experiments. We predicted the miR-139-5p that could play a role in regulating PRC1, which was further verified using dual-luciferase reporter gene assay. Next, we altered the expression of miR-139-5p and PRC1 in bladder cancer cells to identify their functions in cancer progression. Bladder cancer cells were co-cultured with exosomes isolated from human umbilical cord mesenchymal stem cells (hUCMSCs) over-expressing miR-139-5p. The intercellular transfer of miR-139-5p along with in vitro and in vivo functions was determined using gain- and loss-of-function approaches. Our results revealed that PRC1 levels were increased in bladder cancer tissues and cells, and silencing PRC1 appeared to impede the cell proliferation, migration, and invasion potentials. In addition, miR-139-5p was observed to be down-regulated in bladder cancer, which targeted PRC1 and reduced its expression, hereby resulting in ameliorated tumorigenic characteristics of bladder cancer cells in vitro. Furthermore, we noted that miR-139-5p from hUCMSCs-derived exosomes could be transferred into bladder cancer cells to down-regulate the PRC1 expression. Moreover, hUCMSCs-derived exosomal miR-139-5p conferred a suppressive role on bladder cancer development in vitro and in vivo. These data together supported the tumor-inhibiting role of MSCs-derived exosomal miR-139-5p in bladder cancer, highlighting a promising therapeutic strategy.
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Affiliation(s)
- Yuefeng Jia
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, PR China
| | - Xuemei Ding
- Department of Surgery, The Affiliated Hospital of Qingdao University, Qingdao, 266003, PR China
| | - Lihua Zhou
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, 266003, PR China
| | - Li Zhang
- Department of Surgery, The Affiliated Hospital of Qingdao University, Qingdao, 266003, PR China
| | - Xuecheng Yang
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, PR China.
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Wang Y, Zhang Y, Cai G, Li Q. Exosomes as Actively Targeted Nanocarriers for Cancer Therapy. Int J Nanomedicine 2020; 15:4257-4273. [PMID: 32606676 PMCID: PMC7306454 DOI: 10.2147/ijn.s239548] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 05/25/2020] [Indexed: 12/11/2022] Open
Abstract
In recent years, it has been found that exosomes can be used as nanocarriers, which can be used in the treatment of tumors by carrying contents. The exosomes are derived from the secretion of the organism's own cells and are characterized by a phospholipid bilayer structure and a small particle size. These characteristics guarantee that the exosomes can carry a wide range of tumor drugs, deliver the drug to the cancer, and reduce or eliminate the tumor drug band. The toxic side effects were significantly eliminated; meanwhile, the therapeutic effects of the drug on the tumor were remarkably improved. This paper reviewed the strategies and drugs presented by different scholars for the treatment of tumors based on the drugs carried by exosomes.
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Affiliation(s)
- Yan Wang
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
| | - Yingru Zhang
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
| | - Gang Cai
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
| | - Qi Li
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
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Hao D, Deng F, Shi H, Wang H, Xiao F, Sun C, Xu Y, Li P. In vivo inhibitory effect of suberoylanilide hydroxamic acid combined with sorafenib on human hepatocellular carcinoma cells. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902019000318254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Cai Z, Zhang F, Chen W, Zhang J, Li H. miRNAs: A Promising Target in the Chemoresistance of Bladder Cancer. Onco Targets Ther 2019; 12:11805-11816. [PMID: 32099386 PMCID: PMC6997227 DOI: 10.2147/ott.s231489] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/17/2019] [Indexed: 12/25/2022] Open
Abstract
Chemotherapy is an important cancer treatment method. Tumor chemotherapy resistance is one of the main factors leading to tumor progression. Like other malignancies, bladder cancer, especially muscle-invasive bladder cancer, is prone to chemotherapy resistance. Additionally, only approximately 50% of muscle-invasive bladder cancer responds to cisplatin-based chemotherapy. miRNAs are a class of small, endogenous, noncoding RNAs that regulate gene expression at the posttranscriptional level, which results in the inhibition of translation or the degradation of mRNA. In the study of miRNAs and cancer, including gastric cancer, prostate cancer, liver cancer, and colorectal cancer, it has been found that miRNAs can regulate the expression of genes related to tumor resistance, thereby promoting the progression of tumors. In bladder cancer, miRNAs are also closely related to chemotherapy resistance, suggesting that miRNAs can be a new therapeutic target for the chemotherapy resistance of bladder cancer. Therefore, understanding the mechanisms of miRNAs in the chemotherapy resistance of bladder cancer is an important foundation for restoring the chemotherapy sensitivity of bladder cancer and improving the efficacy of chemotherapy and patient survival. In this article, we review the role of miRNAs in the development of chemotherapy-resistant bladder cancer and the various resistance mechanisms that involve apoptosis, the cell cycle, epithelial-mesenchymal transition (EMT), and cancer stem cells (CSCs).
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Affiliation(s)
- Zhonglin Cai
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Fa Zhang
- Department of Urology, First Hospital of Lanzhou University, Lanzhou, Gansu, People's Republic of China
| | - Weijie Chen
- Department of Urology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai Traditional Chinese Medicine University, Shanghai, People's Republic of China
| | - Jianzhong Zhang
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Hongjun Li
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
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Jiang Y, Liu J, Chen L, Jin Y, Zhang G, Lin Z, Du S, Fu Z, Chen T, Qin Y, Sun X. Serum secreted miR-137-containing exosomes affects oxidative stress of neurons by regulating OXR1 in Parkinson’s disease. Brain Res 2019; 1722:146331. [DOI: 10.1016/j.brainres.2019.146331] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/13/2019] [Accepted: 07/09/2019] [Indexed: 12/28/2022]
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Cai H, Yang X, Gao Y, Xu Z, Yu B, Xu T, Li X, Xu W, Wang X, Hua L. Exosomal MicroRNA-9-3p Secreted from BMSCs Downregulates ESM1 to Suppress the Development of Bladder Cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:787-800. [PMID: 31734559 PMCID: PMC6861677 DOI: 10.1016/j.omtn.2019.09.023] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/25/2022]
Abstract
Exosomes, carriers to transfer endogenous molecules, derived from bone marrow-derived mesenchymal stem cells (BMSCs) have been reported to play a role in the progression of bladder cancer. Here we aimed to test the functional mechanism of microRNA-9-3p (miR-9-3p)-containing exosomes derived from BMSCs in bladder cancer. BMSCs were cocultured with bladder cancer cells, and exosomes secreted from BMSCs were identified. Next, the expression of miR-9-3p and endothelial cell-specific molecule 1 (ESM1) in bladder cancer tissues and cells was determined. Then effects of miR-9-3p and ESM1 via BMSC-derived exosomes on bladder cancer cell viability, migration, invasion, and apoptosis were determined by loss- and gain-of-function experiments and on in vivo tumor growth, and metastasis was assessed in nude mice. miR-9-3p expression was decreased and ESM1 was increased in bladder cancer. BMSCs inhibited bladder cancer cell viability, migration, and invasion, and induced apoptosis, whereas the addition of exosome secretion inhibitor GW4869 achieved the opposite effects. Moreover, exosomal miR-9-3p upregulation or ESM1 silencing suppressed bladder cancer cell viability, migration, and invasion; induced cell apoptosis; and inhibited in vivo tumor growth and metastasis. Taken together, BMSC-derived exosomal miR-9-3p suppressed the progression of bladder cancer through ESM1 downregulation, offering a potential novel therapeutic target for bladder cancer therapy.
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Affiliation(s)
- Hongzhou Cai
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Xuejian Yang
- Department of Urology, Suqian First Hospital, Suqian 223800, P.R. China
| | - Yang Gao
- Department of Radiology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Zicheng Xu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Bin Yu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Ting Xu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Xiao Li
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Weizhang Xu
- Department of Urology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China
| | - Xinwei Wang
- Department of Oncology, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, P.R. China.
| | - Lixin Hua
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, P.R. China.
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Zhao S, Li J, Feng J, Li Z, Liu Q, Lv P, Wang F, Gao H, Zhang Y. Identification of Serum miRNA-423-5p Expression Signature in Somatotroph Adenomas. Int J Endocrinol 2019; 2019:8516858. [PMID: 31391849 PMCID: PMC6662485 DOI: 10.1155/2019/8516858] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 04/02/2019] [Accepted: 05/13/2019] [Indexed: 12/23/2022] Open
Abstract
Circulating miRNAs are novel disease biomarkers that are valuable for diagnosis and prognosis. But the circulating miRNAs profile in somatotroph adenomas is still unknown. Therefore, serum exosomal miRNAs expression profiling in somatotroph adenomas was performed on 6 somatotroph adenomas and 6 normal controls. From the exosomal miRNAs expression profiling, we found 169 miRNAs differently expressed between somatotroph adenomas and healthy pituitary samples (p< 0.05, FC > 2). Among the 169 miRNAs, miR-423-5p was expressed lower in somatotroph adenomas than in healthy pituitary samples, which was proved by miRSCan Panel Chip™ qPCR. PTTG1 and SYT1 were the target mRNAs of miR-423-5p, and transcriptomics and proteomics profile both indicated the high expression of PTTG1 and SYT1 in somatotroph adenomas. H-scores were 223.1 ± 34.7 for PTTG1 and 163.4 ± 42.3 for SYT1 in 62 somatotroph adenomas specimens and 84.2 ± 21.3 for PTTG1 and 47.4 ± 17.2 for SYT1 in 6 healthy pituitary specimens by IHC. miR-423-5p inhibited the expression of SYT1 and PTTG1 at the mRNA and protein levels. Dual luciferase reporter gene assay shown was significantly reduced in the presence of miR-423-5p in GH3 cells transfected with wild-type PTTG1 3'UTR luciferase reporter plasmid but not reduced when transfected with the mutation PTTG1 3'UTR luciferase reporter plasmid (p<0.01). In vitro experiments showed that miR-423-5p induced cell apoptosis, inhibited cell proliferation, and reduced growth hormone release and migration of GH3 cells. The activity of miR-423-5p in GH3 cell was nearly blocked by its inhibitor. These results verified the central role of low miR-423-5p in promoting tumorigenesis in somatotroph adenomas. PTTG1 may act as biomarkers for clinical treatment of somatotroph adenomas.
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Affiliation(s)
- Sida Zhao
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Jianhua Li
- Department of Neurosurgery, Binzhou People's Hospital, Binzhou, Shandong, China
| | - Jie Feng
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Zhenye Li
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Qian Liu
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Peng Lv
- Chinese Medical Association, Beijing 100710, China
| | - Fei Wang
- Department of Neurosurgery, Provincial Hospital Affiliated to Anhui Medical University, China
| | - Hua Gao
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Yazhuo Zhang
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders Brain Tumor Center, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Key Laboratory of Central Nervous System Injury Research, Beijing, China
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15
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Sun Z, Shi K, Yang S, Liu J, Zhou Q, Wang G, Song J, Li Z, Zhang Z, Yuan W. Effect of exosomal miRNA on cancer biology and clinical applications. Mol Cancer 2018; 17:147. [PMID: 30309355 PMCID: PMC6182840 DOI: 10.1186/s12943-018-0897-7] [Citation(s) in RCA: 486] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 09/25/2018] [Indexed: 02/07/2023] Open
Abstract
Exosomes, extracellular vesicles with diameters ranging from 30 to 150 nm, are widely present in various body fluids. Recently, microRNAs (miRNAs) have been identified in exosomes, the biogenesis, release, and uptake of which may involve the endosomal sorting complex required for transport (ESCRT complex) and relevant proteins. After release, exosomes are taken up by neighboring or distant cells, and the miRNAs contained within modulate such processes as interfering with tumor immunity and the microenvironment, possibly facilitating tumor growth, invasion, metastasis, angiogenesis and drug resistance. Therefore, exosomal miRNAs have a significant function in regulating cancer progression. Here, we briefly review recent findings regarding tumor-derived exosomes, including RNA sorting and delivering mechanism. We then describe the intercommunication occurring between different cells via exosomal miRNAs in tumor microenvironmnt, with impacts on tumor proliferation, vascularization, metastasis and other biological characteristics. Finally, we highlight the potential role of these molecules as biomarkers in cancer diagnosis and prognosis and tumor resistance to therapeutics.
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Affiliation(s)
- Zhenqiang Sun
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
| | - Ke Shi
- Department of Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Shuaixi Yang
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Jinbo Liu
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Quanbo Zhou
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Guixian Wang
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Junmin Song
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Zhen Li
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Zhiyong Zhang
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Weitang Yuan
- Department of Anorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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16
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MicroRNAs in Smoking-Related Carcinogenesis: Biomarkers, Functions, and Therapy. J Clin Med 2018; 7:jcm7050098. [PMID: 29723992 PMCID: PMC5977137 DOI: 10.3390/jcm7050098] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 04/21/2018] [Accepted: 04/25/2018] [Indexed: 12/11/2022] Open
Abstract
Long-term heavy cigarette smoking is a well-known high-risk factor for carcinogenesis in various organs such as the head and neck, lungs, and urinary bladder. Furthermore, cigarette smoking can systemically accelerate aging, and as the result, promoting carcinogenesis via changing the host microenvironment. Various inflammatory factors, hormones, and chemical mediators induced by smoking mediate carcinoma-related molecules and induce carcinogenesis. MicroRNAs (miRNAs) are a family of short noncoding RNA molecules that bind to mRNAs and inhibit their expression. Cigarette smoke induces the expression of various miRNAs, many of which are known to function in the post-transcriptional silencing of anticancer molecules, thereby leading to smoking-induced carcinogenesis. Analysis of expression profiles of smoking-induced miRNAs can help identify biomarkers for the diagnosis and prognosis of smoking-related cancers and prediction of therapeutic responses, as well as revealing promising therapeutic targets. Here, we introduce the most recent and useful findings of miRNA analyses focused on lung cancer and urinary bladder cancer, which are strongly associated with cigarette smoking, and discuss the utility of miRNAs as clinical biomarkers.
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17
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Bai F, Jiu M, You Y, Feng Y, Xin R, Liu X, Mo L, Nie Y. miR‑29a‑3p represses proliferation and metastasis of gastric cancer cells via attenuating HAS3 levels. Mol Med Rep 2018; 17:8145-8152. [PMID: 29693123 PMCID: PMC5983988 DOI: 10.3892/mmr.2018.8896] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 04/03/2018] [Indexed: 12/30/2022] Open
Abstract
MicroRNA-29a (miR-29a) has recently been in the spotlight as a tumor suppressor whose encoding gene is frequently suppressed in cancers. The aim of the present study was to investigate the biological functions and underlying molecular mechanism by which miR-29a-3p suppresses gastric cancer peritoneum metastasis. Cell proliferation, colony-forming, wound healing and Transwell migration assays were performed in the present study. MiR-29a-3p expression was markedly decreased in gastric cancer cell lines with stronger metastatic potential. Silencing miR-29a-3p expression promoted gastric cancer cell proliferation, colony-forming, migration and invasion. By contrast, overexpression of miR-29a-3p inhibited these biological phenotypes. In addition, it was revealed that miR-29a-3p functioned through downregulating hyaluronan synthase 3 expression. Collectively, dysregulated miR-29a-3p expression in gastric cancer cells was associated with malignant properties primarily relevant to migration and metastasis. The results suggest that miR-29a-3p may be a potential therapeutic target for gastric cancer.
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Affiliation(s)
- Feihu Bai
- Department of Gastroenterology, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Mengna Jiu
- Department of Gastroenterology, Ankang Central Hospital, Ankang, Shanxi 725000, P.R. China
| | - Yanjie You
- Department of Gastroenterology, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Yaning Feng
- Department of Gastroenterology, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Ruijuan Xin
- Department of Gastroenterology, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Xiaogang Liu
- Department of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Lirong Mo
- Department of Basic Medicine, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Yongzhan Nie
- Department of Gasteroenterology, Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology and Institute of Digestive Diseases, Xi'an, Shanxi 710000, P.R. China
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18
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Shao Y, Shen Y, Chen T, Xu F, Chen X, Zheng S. The functions and clinical applications of tumor-derived exosomes. Oncotarget 2018; 7:60736-60751. [PMID: 27517627 PMCID: PMC5312416 DOI: 10.18632/oncotarget.11177] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/1969] [Accepted: 07/13/2016] [Indexed: 02/06/2023] Open
Abstract
Exosomes are extracellular vesicles with diameters ranging from 30 to 150 nm. They can be secreted by all cell types and transfer information in the form of their contents, which include proteins, lipids and nucleic acids, to other cells throughout the body. They have roles in normal physiological processes as well as in disease development. Here, we review recent findings regarding tumor-derived exosomes, including methods for their extraction and preservation. We also describe the actions of exosomes in tumorigenesis. The exosomal antigen-presenting effect during antitumor immune responses and its suppressive function in immune tolerance are discussed. Finally, we describe the potential application of exosomes to cancer therapy and liquid biopsy.
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Affiliation(s)
- Yingkuan Shao
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province, China), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yanwei Shen
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province, China), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ting Chen
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province, China), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Fei Xu
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province, China), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xuewen Chen
- Department of Biology, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Shu Zheng
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province, China), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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19
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Bortezomib-induced miRNAs direct epigenetic silencing of locus genes and trigger apoptosis in leukemia. Cell Death Dis 2017; 8:e3167. [PMID: 29120412 PMCID: PMC5775404 DOI: 10.1038/cddis.2017.520] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 09/02/2017] [Accepted: 09/04/2017] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) have been suggested to repress transcription via binding the 3′-untranslated regions of mRNAs. However, the involvement and details of miRNA-mediated epigenetic regulation, particularly in targeting genomic DNA and mediating epigenetic regulation, remain largely uninvestigated. In the present study, transcription factor CCAAT/enhancer binding protein delta (CEBPD) was responsive to the anticancer drug bortezomib, a clinical and highly selective drug for leukemia treatment, and contributed to bortezomib-induced cell death. Interestingly, following the identification of CEBPD-induced miRNAs, we found that miR-744, miR-3154 and miR-3162 could target CpG islands in the 5′-flanking region of the CEBPD gene. We previously demonstrated that the Yin Yang 1 (YY1)/polycomb group (PcG) protein/DNA methyltransferase (DNMT) complex is important for CCAAT/enhancer binding protein delta (CEBPD) gene inactivation; we further found that Argonaute 2 (Ago2) interacts with YY1 and binds to the CEBPD promoter. The miRNA/Ago2/YY1/PcG group protein/DNMT complex linked the inactivation of CEBPD and genes adjacent to its 5′-flanking region, including protein kinase DNA-activated catalytic polypeptide (PRKDC), minichromosome maintenance-deficient 4 (MCM4) and ubiquitin-conjugating enzyme E2 variant 2 (UBE2V2), upon bortezomib treatment. Moreover, we revealed that miRNA binding is necessary for YY1/PcG group protein/DNMT complex-mediated epigenetic gene silencing and is associated with bortezomib-induced methylation on genomic DNA. The present study successfully characterized the interactions of the miRNA/Ago2/YY1/PcG group protein/DNMT complex and provided new insights for miRNA-mediated epigenetic regulation in bortezomib-induced leukemic cell arrest and cell death.
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20
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Affiliation(s)
- Xiaoyun He
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chunlin Ou
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha 410078, China
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21
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Understanding the Role of Non-Coding RNAs in Bladder Cancer: From Dark Matter to Valuable Therapeutic Targets. Int J Mol Sci 2017; 18:ijms18071514. [PMID: 28703782 PMCID: PMC5536004 DOI: 10.3390/ijms18071514] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 06/22/2017] [Accepted: 07/07/2017] [Indexed: 02/07/2023] Open
Abstract
The mortality and morbidity that characterize bladder cancer compel this malignancy into the category of hot topics in terms of biomolecular research. Therefore, a better knowledge of the specific molecular mechanisms that underlie the development and progression of bladder cancer is demanded. Tumor heterogeneity among patients with similar diagnosis, as well as intratumor heterogeneity, generates difficulties in terms of targeted therapy. Furthermore, late diagnosis represents an ongoing issue, significantly reducing the response to therapy and, inevitably, the overall survival. The role of non-coding RNAs in bladder cancer emerged in the last decade, revealing that microRNAs (miRNAs) may act as tumor suppressor genes, respectively oncogenes, but also as biomarkers for early diagnosis. Regarding other types of non-coding RNAs, especially long non-coding RNAs (lncRNAs) which are extensively reviewed in this article, their exact roles in tumorigenesis are—for the time being—not as evident as in the case of miRNAs, but, still, clearly suggested. Therefore, this review covers the non-coding RNA expression profile of bladder cancer patients and their validated target genes in bladder cancer cell lines, with repercussions on processes such as proliferation, invasiveness, apoptosis, cell cycle arrest, and other molecular pathways which are specific for the malignant transformation of cells.
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22
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Fatima F, Nawaz M. Vesiculated Long Non-Coding RNAs: Offshore Packages Deciphering Trans-Regulation between Cells, Cancer Progression and Resistance to Therapies. Noncoding RNA 2017; 3:ncrna3010010. [PMID: 29657282 PMCID: PMC5831998 DOI: 10.3390/ncrna3010010] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/10/2017] [Accepted: 02/16/2017] [Indexed: 12/11/2022] Open
Abstract
Extracellular vesicles (EVs) are nanosized vesicles secreted from virtually all cell types and are thought to transport proteins, lipids and nucleic acids including non-coding RNAs (ncRNAs) between cells. Since, ncRNAs are central to transcriptional regulation during developmental processes; eukaryotes might have evolved novel means of post-transcriptional regulation by trans-locating ncRNAs between cells. EV-mediated transportation of regulatory elements provides a novel source of trans-regulation between cells. In the last decade, studies were mainly focused on microRNAs; however, functions of long ncRNA (lncRNA) have been much less studied. Here, we review the regulatory roles of EV-linked ncRNAs, placing a particular focus on lncRNAs, how they can foster dictated patterns of trans-regulation in recipient cells. This refers to envisaging novel mechanisms of epigenetic regulation, cellular reprogramming and genomic instability elicited in recipient cells, ultimately permitting the generation of cancer initiating cell phenotypes, senescence and resistance to chemotherapies. Conversely, such trans-regulation may introduce RNA interference in recipient cancer cells causing the suppression of oncogenes and anti-apoptotic proteins; thus favoring tumor inhibition. Collectively, understanding these mechanisms could be of great value to EV-based RNA therapeutics achieved through gene manipulation within cancer cells, whereas the ncRNA content of EVs from cancer patients could serve as non-invasive source of diagnostic biomarkers and prognostic indicators in response to therapies.
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Affiliation(s)
- Farah Fatima
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto 14049-900, Brazil.
| | - Muhammad Nawaz
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto 14049-900, Brazil.
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23
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Bucur O. microRNA regulators of apoptosis in cancer. Discoveries (Craiova) 2016; 4:e57. [PMID: 32309578 PMCID: PMC7159826 DOI: 10.15190/d.2016.4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 03/31/2016] [Accepted: 03/31/2016] [Indexed: 12/12/2022] Open
Abstract
This brief review summarizes our current knowledge on the microRNAs that regulate apoptosis machinery and are potentially involved in the dysregulation or deregulation of apoptosis, a well known hallmark of cancer. microRNAs are critical regulators of the most important cellular processes, including apoptosis. Expression of microRNAs is found to be dysregulated in many malignancies, leading to apoptosis inhibition in cancer, or resistance to current therapies. To date, there are over 80 microRNAs directly involved in apoptosis regulation or dysregulation that can impact cancer detection, initiation, progression, invasion, metastasis or resistance to anti-cancer therapy. Development of microRNA-based therapeutic strategies is now taking shape in the clinic. Thus, these microRNAs represent potential targets or tools for cancer therapy in the future.
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Affiliation(s)
- Octavian Bucur
- Department of Pathology, Harvard Medical School and Beth Israel Deaconess Medical Center, Boston, MA, USA
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24
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Urinary Exosomes: The Potential for Biomarker Utility, Intercellular Signaling and Therapeutics in Urological Malignancy. J Urol 2015; 195:1331-1339. [PMID: 26714199 DOI: 10.1016/j.juro.2015.08.115] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2015] [Indexed: 01/22/2023]
Abstract
PURPOSE Exosomes are small secreted vesicles that contain proteins, mRNA and miRNA with the potential to alter signaling pathways in recipient cells. While exosome research has flourished, few publications have specifically considered the role of genitourinary cancer shed exosomes in urine, their implication in disease progression and their usefulness as noninvasive biomarkers. In this review we examined the current literature on the role of exosomes in intercellular communication and as biomarkers, and their potential as delivery vehicles for therapeutic applications in bladder, prostate and renal cancer. MATERIALS AND METHODS We searched PubMed® and Google® with the key words prostate cancer, bladder cancer, kidney cancer, exosomes, microvesicles and urine. Relevant articles, including original research studies and reviews, were selected based on contents. A review of this literature was generated. RESULTS Cancer exosomes can be isolated from urine using various techniques. Cancer cells have been found to secrete more exosomes than normal cells. These exosomes have a role in cellular communication by interacting with and depositing their cargo in target cells. Bladder, prostate and renal cancer exosomes have been shown to enhance migration, invasion and angiogenesis. These exosomes have also been shown to increase proliferation, confer drug resistance and promote immune evasion. CONCLUSIONS Urinary exosomes can be isolated from bladder, kidney and prostate cancer. They serve as a potential reservoir for biomarker identification. Exosomes also have potential for therapeutics as siRNA or pharmacological agents can be loaded into exosomes.
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25
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Eissa S, Matboli M, Hegazy MGA, Kotb YM, Essawy NOE. Evaluation of urinary microRNA panel in bladder cancer diagnosis: relation to bilharziasis. Transl Res 2015; 165:731-9. [PMID: 25620614 DOI: 10.1016/j.trsl.2014.12.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 12/23/2014] [Accepted: 12/31/2014] [Indexed: 01/10/2023]
Abstract
We assessed the differential expression of a urinary panel of microRNAs (miRs) in terms of potential application as diagnostic markers of bladder cancer (BC) and relationship to bilharziasis. We investigated voided urine samples and blood from patients with BC (n = 188), benign bladder lesions (n = 88), and age-matched controls (n = 92). Five miRs (miR-210, miR-10b, miR-29c, miR-221, and miR-23a) were selected from previous microarray signature profiling (released by miR2Disease). Afterward, they were validated using polymerase chain reaction array. The expression levels of miR-210, miR-10b, and miR-29c in the urine samples were significantly higher in BC (P < 0.001). The receiver-operating characteristic curve analyses demonstrated that each miR had good sensitivity and specificity for distinguishing patients with BC from patients without BC (miR-210, 71.3% and 91.1%; miR-10b, 80.9% and 91.1%; and miR-183, 71.3% and 88.9%). On combining the 3 miR detection data with the urinary cytology, the results sensitivity increased to 95.2%. Relative quantity mean rank of the miR-29c was significantly higher in the bilharzial-positive patients compared with bilharzial-negative patients. To conclude, urine miR-210, miR-10b, and miR-29c are promising tumor markers for BC: bilharzial and nonbilharzial.
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Affiliation(s)
- Sanaa Eissa
- Oncology Diagnostic Unit, Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
| | - Marwa Matboli
- Oncology Diagnostic Unit, Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Marwa G A Hegazy
- Biochemistry and Molecular Biology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Youssef M Kotb
- Urology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Nada O E Essawy
- Pharmacogenetics and Stratified Medicine, University College London, London, UK
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26
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Li JR, Wang JQ, Gong Q, Fang RH, Guo YL. MicroRNA-328 Inhibits Proliferation of Human Melanoma Cells by Targeting TGFB2. Asian Pac J Cancer Prev 2015; 16:1575-9. [DOI: 10.7314/apjcp.2015.16.4.1575] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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27
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Zhang H, Cheng Y, Jia C, Yu S, Xiao Y, Chen J. MicroRNA-29s could target AKT2 to inhibit gastric cancer cells invasion ability. Med Oncol 2014; 32:342. [PMID: 25428377 DOI: 10.1007/s12032-014-0342-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 11/09/2014] [Indexed: 12/28/2022]
Abstract
AKT2 is a crucial mediator in the tumorigenesis and thought to be an ideal target for the treatment of malignancies. Increasing evidence has also shown that microRNAs (miRNAs) could regulate or be regulated by mRNAs and they also might serve as therapeutic agencies or targets. MiR-29s (miR-29a, miR-29b and miR-29c) had been approved that they decreased in gastric cancers (GC) by targeting CCND2, MMP2 and p42.3. However, whether miR-29s would target AKT2 have not been investigated in GC. Here, we explored the relationship between miR-29s and AKT2 and found that in GC cell lines (HGC-27 and MGC-803) and GC clinical samples the decreased levels of miR-29s accompanied by increased AKT2 expression. Introduction of miR-29s into GC cells resulted in decreased AKT2 expression and decreased the ability of cancer cells invasion, so did the siRNA-AKT2. Our studies revealed that miR-29s expression is downregulated in GC and they could repress the AKT2 expression and the inactivation of AKT and GSK3beta leading to inhibit the GC cells invasion. Taken together, our findings suggested that AKT2 may be one of the targets of miR29s in gastric cancer. By increasing the expression of miR-29s or decreasing AKT2 expression may be promising in combating with GC.
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Affiliation(s)
- Hongkai Zhang
- Department of Pathology, Peking Union Medical College Hospital, CAMS & PUMC, Beijing, 100730, People's Republic of China
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