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Fastner S, Rahman H, Gutierrez J, Shen N, Florell SR, Florell A, Stubben CJ, Boucher KM, Deacon DC, Judson-Torres RL, Grossman D. MicroRNA Signatures Associated with Basal Cell Carcinoma Subtypes. JID INNOVATIONS 2024; 4:100286. [PMID: 38994234 PMCID: PMC11238194 DOI: 10.1016/j.xjidi.2024.100286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 03/20/2024] [Accepted: 03/31/2024] [Indexed: 07/13/2024] Open
Abstract
Basal cell carcinoma (BCC) is classified histologically into subtypes that determine treatment decisions. MicroRNAs (miRs) are short noncoding RNAs that may serve as diagnostic biomarkers. We investigated if particular miRs could distinguish BCC subtypes. We sequenced miRs from 55 archival BCC and 9 control skin specimens and then validated these miRs by qRT-PCR assay on a second BCC cohort (18 superficial, 16 nodular, 15 infiltrative) and control skin (n = 12). Expression values for individual miRs were normalized to miR-16-5p, which was the least variant among the control skin and BCC samples. We found that (i) miR-383-5p and miR-145-5p are downregulated in all BCC subtypes compared with control skin, (ii) miR-181c-5p is downregulated in superficial compared with invasive (nodular/infiltrative) BCC, and (iii) miR-22-5p and miR-708-5p are upregulated in infiltrative compared with superficial/nodular BCC and miR-30c-5p is downregulated in infiltrative compared with nodular BCC. Receiver operating characteristic analysis demonstrated excellent capacity of these miRs to discriminate between BCC and control skin (area under the curve, 0.94-0.98), whereas the capacity to discriminate between superficial and invasive subtypes was less robust (area under the curve, 0.7-0.8). Future prospective studies may determine the utility of these miRs as diagnostic biomarkers to guide biopsy and treatment of BCC.
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Affiliation(s)
- Suzanne Fastner
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Hafeez Rahman
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Jose Gutierrez
- University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Nathan Shen
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Scott R Florell
- Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Abigail Florell
- Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Chris J Stubben
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Kenneth M Boucher
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
- Department of Medicine, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Dekker C Deacon
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
- Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Robert L Judson-Torres
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
- Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Douglas Grossman
- Huntsman Cancer Institute, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
- Department of Dermatology, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
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Nguyen LT, Pollock CA, Saad S. Extraction of high quality and high yield RNA from frozen EDTA blood. Sci Rep 2024; 14:8628. [PMID: 38622175 PMCID: PMC11018810 DOI: 10.1038/s41598-024-58576-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 04/01/2024] [Indexed: 04/17/2024] Open
Abstract
Peripheral blood RNA profiling, which can reveal systemic changes in gene expression and immune responses to disease onset and progression, is a powerful tool for diagnosis and biomarker discovery. This technique usually requires high quality RNA, which is only obtainable from fresh blood, or frozen blood that has been collected in special RNA-stabilisation systems. The current study aimed to develop a novel protocol to extract high quality RNA from frozen blood that had been collected in the conventional EDTA tubes. We determined that thawing EDTA blood in the presence of cell lysis/RNA stabilisation buffers (Paxgene or Nucleospin) significantly improved RNA quality (RIN) from below 5 to above 7, which to date has not been shown possible. The EDTA-Nucleospin protocol resulted in 5 times higher yield than the EDTA-Paxgene-PreAnalytix method. The average RIN and mRNA expression levels of five different genes including 18 s, ACTB, MCP1, TNFa and TXNIP using this protocol were also indifferent to those from Paxgene blood, suggesting similar RNA quality and blood transcriptome. Moreover, the protocol allows DNA to be extracted simultaneously. In conclusion, we have developed a practical and efficient protocol to extract high quality, high yield RNA from frozen EDTA blood.
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Affiliation(s)
- Long T Nguyen
- Renal Medicine, Kolling Institute, University of Sydney, Camperdown, Australia.
| | - Carol A Pollock
- Renal Medicine, Kolling Institute, University of Sydney, Camperdown, Australia
| | - Sonia Saad
- Renal Medicine, Kolling Institute, University of Sydney, Camperdown, Australia
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Development of a Novel KCNN4-Related ceRNA Network and Prognostic Model for Renal Clear Cell Carcinoma. Anal Cell Pathol 2023. [DOI: 10.1155/2023/2533992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background. Clear cell renal cell carcinoma (ccRCC) accounts for more than 80% of renal cell carcinomas. Yet, it has not been fully understood about the derivation and progression of the tumor, as well as the long-term benefits from multimodality therapy. Therefore, reliable and applicable molecular markers are urgently needed for the prediction of diagnosis and prognosis of ccRCC patients. Methods. Genetic and clinical information of 533 ccRCC patients from The Cancer Genome Atlas database was collected for comprehensive bioinformatic analyses. UALCAN was used to detect gene expression in paired tumor samples. Two data sets from Gene Expression Omnibus database were analyzed to identify differentially expressed genes (DEGs), and Gene Set Enrichment Analysis was applied for the functional enrichment of DEGs. Tumor Immune Single Cell Hub and Tumor IMmune Estimation Resource databases were separately used for analyses of single-immune cell and immune cell infiltration. Encyclopedia of RNA Interactomes database was explored to predict targeted microRNAs (miRNAs) and corresponding long non-coding RNAs (lncRNAs). Cox regression analysis was performed for the construction of risk signature and prognosis model. Finally, quantitative real-time polymerase chain reaction and western blot were conducted for KCNN4 expression detection in cell lines and clinical samples. Small interfering RNA was employed to knock down KCNN4, and corresponding functional experiments were conducted on ccRCC cells as well. Results. KCNN4 showed elevated expression in tumors and prominent clinical correlation in ccRCC. In total, 41 KCNN4-related genes were enriched, and Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses showed they were intimately related to immune-related signaling pathways. Spearman’s analysis revealed the significantly positive correlation of KCNN4 with immune cell infiltration. By integrating hub miRNA-let-7e-5p and four critical lncRNA, a competitive endogenous RNA network-based risk signature was constructed. The prognosis model derived from it showed considerable predictive value for survival of ccRCC patients. Finally, in vitro experiments confirmed the remarkable tumor-promoting role of KCNN4 in ccRCC cells. Conclusion. KCNN4 significantly affected the immune status of tumor microenvironment and immunotherapy elements, through which it promoted tumor progression in ccRCC, and it could be a potential biomarker for prognosis and immunotherapy effects of ccRCC patients.
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Al-Awsi GRL, Jasim SA, Fakri Mustafa Y, Alhachami FR, Ziyadullaev S, Kandeel M, Abulkassim R, Sivaraman R, M Hameed N, Mireya Romero Parra R, Karampoor S, Mirzaei R. The role of miRNA-128 in the development and progression of gastrointestinal and urogenital cancer. Future Oncol 2022; 18:4209-4231. [PMID: 36519554 DOI: 10.2217/fon-2022-0574] [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: 12/23/2022] Open
Abstract
Increasing data have shown the significance of various miRNAs in malignancy. In this regard, parallel to its biological role in normal tissues, miRNA-128 (miR-128) has been found to play an essential immunomodulatory function in the process of cancer initiation and development. The occurrence of the aberrant expression of miR-128 in tumors and the unique properties of miRNAs raise the prospect of their use as biomarkers and the next generation of molecular anticancer therapies. The function of miR-128 in malignancies such as breast, prostate, colorectal, gastric, pancreatic, esophageal, cervical, ovarian and bladder cancers and hepatocellular carcinoma is discussed in this review. Finally, the effect of exosomal miR-128 on cancer resistance to therapeutics and cancer immunotherapy in certain malignancies is highlighted.
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Affiliation(s)
| | - Saade Abdalkareem Jasim
- Department of Medical Laboratory Techniques, Al-maarif University College, Al-Anbar-Ramadi, Iraq
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
| | - Firas Rahi Alhachami
- Department of Radiology, College of Health & Medical Technololgy, Al-Ayen University, Thi-Qar, Iraq
| | - Shukhrat Ziyadullaev
- No. 1 Department of Internal Diseases, Vice-rector for Scientific Affairs & Innovations, Samarkand State Medical University, Amir Temur Street 18, Samarkand, Uzbekistan
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Hofuf, Al-Ahsa, 31982, Saudi Arabia.,Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelshikh University, Kafrelshikh, 33516, Egypt
| | | | - R Sivaraman
- Department of Mathematics, Dwaraka Doss Goverdhan Doss Vaishnav College, Arumbakkam, University of Madras, Chennai, India
| | - Noora M Hameed
- Anesthesia Techniques, Al-Nisour University College, Iraq
| | | | - Sajad Karampoor
- Gastrointestinal & Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Rasoul Mirzaei
- Department of Medical Biotechnology, Venom & Biotherapeutics Molecules Lab, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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Wong KY, Cheung AH, Chen B, Chan WN, Yu J, Lo KW, Kang W, To KF. Cancer-associated fibroblasts in nonsmall cell lung cancer: From molecular mechanisms to clinical implications. Int J Cancer 2022; 151:1195-1215. [PMID: 35603909 PMCID: PMC9545594 DOI: 10.1002/ijc.34127] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/08/2022] [Accepted: 05/12/2022] [Indexed: 11/14/2022]
Abstract
Lung cancer is the common and leading cause of cancer death worldwide. The tumor microenvironment has been recognized to be instrumental in tumorigenesis. To have a deep understanding of the molecular mechanism of nonsmall cell lung carcinoma (NSCLC), cancer-associated fibroblasts (CAFs) have gained increasing research interests. CAFs belong to the crucial and dominant cell population in the tumor microenvironment to support the cancer cells. The interplay and partnership between cancer cells and CAFs contribute to each stage of tumorigenesis. CAFs exhibit prominent heterogeneity and secrete different kinds of cytokines and chemokines, growth factors and extracellular matrix proteins involved in cancer cell proliferation, invasion, metastasis and chemoresistance. Many studies focused on the protumorigenic functions of CAFs, yet many challenges about the heterogeneity of CAFS remain unresolved. This review comprehensively summarized the tumor-promoting role and molecular mechanisms of CAFs in NSCLC, including their origin, phenotypic changes and heterogeneity and their functional roles in carcinogenesis. Meanwhile, we also highlighted the updated molecular classifications based on the molecular features and functional roles of CAFs. With the development of cutting-edge platforms and further investigations of CAFs, novel therapeutic strategies for accurately targeting CAFs in NSCLC may be developed based on the increased understanding of the relevant molecular mechanisms.
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Affiliation(s)
- Kit Yee Wong
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Alvin Ho‐Kwan Cheung
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Bonan Chen
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Wai Nok Chan
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Jun Yu
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Department of Medicine and TherapeuticsThe Chinese University of Hong KongHong KongSARChina
| | - Kwok Wai Lo
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Wei Kang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Ka Fai To
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
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Role of miRNAs in the regulation of cancer-associated signaling pathways. Noncoding RNA Res 2022. [DOI: 10.1016/j.ncrna.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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7
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Bao F, Liu J, Chen H, Miao L, Xu Z, Zhang G. Diagnosis Biomarkers of Cholangiocarcinoma in Human Bile: An Evidence-Based Study. Cancers (Basel) 2022; 14:cancers14163921. [PMID: 36010914 PMCID: PMC9406189 DOI: 10.3390/cancers14163921] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 11/23/2022] Open
Abstract
Simple Summary A liquid biopsy has the characteristics of low trauma and easy acquisition in the diagnosis of cholangiocarcinoma. Many researchers try to find diagnostic or prognostic biomarkers of CCA through blood, urine, bile and other body fluids. Due to the close proximity of bile to the lesion and the stable nature, bile gradually comes into people’s view. The evaluation of human bile diagnostic biomarkers is not only to the benefit of screening more suitable clinical markers but also of exploring the pathological changes of the disease. Abstract Cholangiocarcinoma (CCA) is a multifactorial malignant tumor of the biliary tract, and the incidence of CCA is increasing in recent years. At present, the diagnosis of CCA mainly depends on imaging and invasive examination, with limited specificity and sensitivity and late detection. The early diagnosis of CCA always faces the dilemma of lacking specific diagnostic biomarkers. Non-invasive methods to assess the degree of CAA have been developed throughout the last decades. Among the many specimens looking for CCA biomarkers, bile has gotten a lot of attention lately. This paper mainly summarizes the recent developments in the current research on the diagnostic biomarkers for CCA in human bile at the levels of the gene, protein, metabolite, extracellular vesicles and volatile organic compounds.
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Affiliation(s)
- Fang Bao
- Institute of Integrative Medicine, Dalian Medical University, No. 9, South Road of Lvshun, Dalian 116044, China
- Department of General Surgery, Pancreatic-Biliary Center, The First Affiliated Hospital of Dalian Medical University, No. 222, Zhongshan Road, Dalian 116011, China
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Jiayue Liu
- Institute of Integrative Medicine, Dalian Medical University, No. 9, South Road of Lvshun, Dalian 116044, China
- Department of General Surgery, Pancreatic-Biliary Center, The First Affiliated Hospital of Dalian Medical University, No. 222, Zhongshan Road, Dalian 116011, China
| | - Haiyang Chen
- Institute of Integrative Medicine, Dalian Medical University, No. 9, South Road of Lvshun, Dalian 116044, China
- Department of General Surgery, Pancreatic-Biliary Center, The First Affiliated Hospital of Dalian Medical University, No. 222, Zhongshan Road, Dalian 116011, China
| | - Lu Miao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhaochao Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- Correspondence: (Z.X.); (G.Z.)
| | - Guixin Zhang
- Institute of Integrative Medicine, Dalian Medical University, No. 9, South Road of Lvshun, Dalian 116044, China
- Department of General Surgery, Pancreatic-Biliary Center, The First Affiliated Hospital of Dalian Medical University, No. 222, Zhongshan Road, Dalian 116011, China
- Correspondence: (Z.X.); (G.Z.)
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The Application of Molecular Techniques for Assessment of SOX2 and miR126 Expression as Prognostic Markers in Esophageal Carcinoma. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022. [DOI: 10.1155/2022/1514412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective. To study the problem in esophageal cancer, the function of SOX2 and miR-126 has not been completely explored. The objective of this study was to find out how SOX2 and miR-126 act in esophageal cancer and their relation to the clinical and prognostic features. Methods. The expression of SOX2 and miR-126 was properly assessed in the carcinoma of the esophagus, and the nearby healthy tissues surgically excised from 35 included patients. Results. SOX2 was elevated in esophageal cancer relative to normal tissues contrary to the miR-126 levels. This inverse relationship was linked to adverse clinical features. Background. SOX2 has been involved as an oncogene in various types of malignant tumors; microRNA-126 (miR-126) is extensively expressed in vascular endothelial cells, which control angiogenesis. Furthermore, many published reports reasonably concluded that based on the prime characteristic of malignant cells, miR-126 may act appropriately as a promotor or a suppressor for the malignant growth. Conclusion. In esophageal cancer, SOX2 works as an oncogene, whereas miR-126 acts as a tumor suppressor gene. SOX2 overexpression and miR-126 downregulation were shown to be linked to a poor prognosis.
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Hu X, Xu Y, Zhang H, Li Y, Wang X, Xu C, Ni W, Zhou K. Role of necroptosis in traumatic brain and spinal cord injuries. J Adv Res 2021; 40:125-134. [PMID: 36100321 PMCID: PMC9481937 DOI: 10.1016/j.jare.2021.12.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 09/04/2021] [Accepted: 12/08/2021] [Indexed: 11/30/2022] Open
Affiliation(s)
- Xinli Hu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Yu Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Haojie Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Yao Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China.
| | - Cong Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China.
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China.
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China; Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China.
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Lal M, Ansari AH, Agrawal A, Mukhopadhyay A. Diagnostic and Prognostic Potential of MiR-379/656 MicroRNA Cluster in Molecular Subtypes of Breast Cancer. J Clin Med 2021; 10:jcm10184071. [PMID: 34575183 PMCID: PMC8467195 DOI: 10.3390/jcm10184071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 08/24/2021] [Accepted: 08/27/2021] [Indexed: 02/07/2023] Open
Abstract
Introduction: Breast cancer is the most frequently diagnosed cancer globally and is one of the most important contributors to cancer-related deaths. Earlier diagnosis is known to reduce mortality, and better biomarkers are needed. MiRNA clusters often co-express and target mRNAs in a coordinated fashion, perturbing entire pathways; they thus merit further exploration for diagnostic or prognostic use. MiR-379/656, at chromosome 14q32, is the second largest miRNA cluster in the human genome and implicated in various malignancies including glioblastoma, melanoma, gastrointestinal tumors and ovarian cancer highlighting its potential importance. In this study, we focus on the diagnostic and prognostic potentials of MiR-379/656 in breast cancer and its molecular subtypes. Materials and Methods: We analyzed miRNA and mRNA next generation sequencing data from 903 primary tumors and 90 normal controls (source: The Cancer Genome Atlas). The differential expression profile between tumor and normal was analyzed using DeSEQ2. Penalized logistic regression modelling (lasso regression) was used to assess the predictive potential of MiR-379/656 expression for tumor and normal samples. The association between MiR-379/656 expression and overall patient survival was studied using Cox Proportional-Hazard Model. The target mRNAs (validated) of MiR-379/656 were annotated via pathway enrichment analysis to understand the biological significance of the cluster in breast cancer. Results: The differential expression analysis for 1390 miRNAs (miRnome) revealed 310 upregulated (22.3%) and 176 downregulated (12.66%) miRNAs in breast cancer patients compared with controls. For MiR-379/656, 32 miRNAs (32/42; 76%) were downregulated. The MiR-379/656 cluster was found to be the most differentially expressed cluster in the human genome (p < 10−30). The Basal and Luminal B subtypes showed at least 83% (35/42) of the miRNAs to be downregulated. The binomial model prioritized 15 miRNAs, which distinguished breast cancer patients from controls with 99.15 ± 0.58% sensitivity and 77.78 ± 5.24% specificity. Overall, the Basal and Luminal B showed the most effective predictive power with respect to the 15 prioritized miRNAs at MiR-379/656 cluster. The decreased expression of MiR-379/656 was found to be associated with poorer clinical outcome in Basal and Luminal B subtypes, increasing tumor stage and tumor size/extent, and overall patient survival. Pathway enrichment for the validated targets of MiR-379/656 was significant for cancer-related pathways, especially DNA repair, transcriptional regulation by p53 and cell cycle checkpoints (adjusted p-value < 0.05). Conclusions: Genome informatics analysis of high throughput data for MiR-379/656 cluster has shown that a subset of 15 miRNAs from MiR-379/656 cluster can be used for the diagnostic and prognostic purpose of breast cancer and its subtypes—especially in Basal and Luminal B.
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Affiliation(s)
- Megha Lal
- Genomics & Molecular Medicine Unit, CSIR-Institute of Genomics & Integrative Biology, Delhi 110025, India; (M.L.); (A.H.A.); (A.A.)
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Asgar Hussain Ansari
- Genomics & Molecular Medicine Unit, CSIR-Institute of Genomics & Integrative Biology, Delhi 110025, India; (M.L.); (A.H.A.); (A.A.)
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Anurag Agrawal
- Genomics & Molecular Medicine Unit, CSIR-Institute of Genomics & Integrative Biology, Delhi 110025, India; (M.L.); (A.H.A.); (A.A.)
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Arijit Mukhopadhyay
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
- Biomedical Research Centre, Translational Medicine Unit, University of Salford, Manchester M5 4WT, UK
- Correspondence: ; Tel.: +44-0161-295-8129
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Ramos A, Sadeghi S, Tabatabaeian H. Battling Chemoresistance in Cancer: Root Causes and Strategies to Uproot Them. Int J Mol Sci 2021; 22:9451. [PMID: 34502361 PMCID: PMC8430957 DOI: 10.3390/ijms22179451] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/28/2021] [Accepted: 08/30/2021] [Indexed: 02/07/2023] Open
Abstract
With nearly 10 million deaths, cancer is the leading cause of mortality worldwide. Along with major key parameters that control cancer treatment management, such as diagnosis, resistance to the classical and new chemotherapeutic reagents continues to be a significant problem. Intrinsic or acquired chemoresistance leads to cancer recurrence in many cases that eventually causes failure in the successful treatment and death of cancer patients. Various determinants, including tumor heterogeneity and tumor microenvironment, could cause chemoresistance through a diverse range of mechanisms. In this review, we summarize the key determinants and the underlying mechanisms by which chemoresistance appears. We then describe which strategies have been implemented and studied to combat such a lethal phenomenon in the management of cancer treatment, with emphasis on the need to improve the early diagnosis of cancer complemented by combination therapy.
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Affiliation(s)
- Alisha Ramos
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore;
| | - Samira Sadeghi
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore 138672, Singapore
| | - Hossein Tabatabaeian
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
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12
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Olthof EP, van der Aa MA, Adam JA, Stalpers LJA, Wenzel HHB, van der Velden J, Mom CH. The role of lymph nodes in cervical cancer: incidence and identification of lymph node metastases-a literature review. Int J Clin Oncol 2021; 26:1600-1610. [PMID: 34241726 DOI: 10.1007/s10147-021-01980-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/24/2021] [Indexed: 01/15/2023]
Abstract
Correct identification of patients with lymph node metastasis from cervical cancer prior to treatment is of great importance, because it allows more tailored therapy. Patients may be spared unnecessary surgery or extended field radiotherapy if the nodal status can be predicted correctly. This review captures the existing knowledge on the identification of lymph node metastases in cervical cancer. The risk of nodal metastases increases per 2009 FIGO stage, with incidences in the pelvic region ranging from 2% (stage IA2) to 14-36% (IB), 38-51% (IIA) and 47% (IIB); and in the para-aortic region ranging from 2 to 5% (stage IB), 10-20% (IIA), 9% (IIB), 13-30% (III) and 50% (IV). In addition, age, tumor size, lymph vascular space invasion, parametrial invasion, depth of stromal invasion, histological type, and histological grade are reported to be independent prognostic factors for the risk of nodal metastases. Furthermore, biomarkers can contribute to predict a patient's nodal status, of which the squamous cell carcinoma antigen (SCC-Ag) is currently the most widely used in squamous cell cervical cancer. Still, pre-treatment lymph node assessment is primarily performed by imaging, of which diffusion-weighted magnetic resonance imaging has the highest sensitivity and 2-deoxy-2-[18F]fluoro-D-glucose positron emission computed tomography the highest specificity. Imaging results can be combined with clinical parameters in nomograms to increase the accuracy of predicting positives nodes. Despite all the progress regarding pre-treatment prediction of lymph node metastases in cervical cancer in recent years, prediction rates are not robust enough to safely abandon surgical staging of the pelvic or para-aortic region yet.
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Affiliation(s)
- Ester P Olthof
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Godebaldkwartier 419, 3511 DT, Utrecht, The Netherlands.
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Postbus 19079, 3501 DB, Utrecht, The Netherlands.
| | - Maaike A van der Aa
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Godebaldkwartier 419, 3511 DT, Utrecht, The Netherlands
| | - Judit A Adam
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Lukas J A Stalpers
- Department of Radiation Oncology, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Hans H B Wenzel
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Godebaldkwartier 419, 3511 DT, Utrecht, The Netherlands
| | - Jacobus van der Velden
- Department of Gynaecological Oncology, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Constantijne H Mom
- Department of Gynaecological Oncology, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
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13
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Ahmed Z, Mal C. Functional role of hub molecules in miRNA and transcription factor mediated gene regulatory network of colorectal and lung cancer. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Pan J, Liu Z, Yang Z, Liang E, Fang C, Zhang D, Zhou X, Niu Y, Xin Z, Chen Y, Cai Q. Circ_0001686 Promotes Prostate Cancer Progression by Up-Regulating SMAD3/TGFBR2 via miR-411-5p. World J Mens Health 2021; 40:149-161. [PMID: 34169675 PMCID: PMC8761241 DOI: 10.5534/wjmh.200204] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 11/15/2022] Open
Abstract
Purpose As the mechanism of interaction between circular RNAs (circRNAs) and microRNAs (miRNAs) in regulating the development of prostate cancer (PCa) is not clear, this study focuses on investigating these effects. Materials and Methods Sample tissues were collected from the PCa of patients, and microarray analysis of human circRNAs was conducted. The expression of circ_0001686, hsa_miR-411-5p (miR-411-5p) were also detected by qRT-PCR. Circ_0001686 and miR-411-5p mimics were transfected into the PCa cell lines (CWR22RV1and LNCaP) and MTT, colony formation, Transwell, and scratch wound assays were used to analyze the biological behaviors of PCa cells. Si-circ_0001686 and ASO-miR-411-5p were used as negative controls, and dual-luciferase reporter assays were performed to verify the interactions among circ_0001686, miR-411-5p, and SMAD3/TGFBR2. The levels of SMAD3 and TGFBR2 in different treated PCa cells were measured by western blot, and in vivo experiments in a nude mouse model were carried out to strengthen the in vitro findings of miR-411-5p. Results The expression of circ_0001686 was up-regulated, while the expression of miR-411-5p was down-regulated in PCa cells. Moreover, circ_0001686 promoted cell proliferation, migration, and invasion. Molecular mechanism exploration revealed that circ_0001686 could reduce miR-411-5p, affecting the downstream target genes of SMAD3 and TGFBR2. In vitro and in vivo studies verified that miR-411-5p inhibits PCa progression. Conclusions Circ_0001686 can reduce miR-411-5p to increase the expression of SMAD3/TGFBR2, which consequently promotes the proliferation, invasion, and migration of PCa cells.
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Affiliation(s)
- Jiancheng Pan
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Zihao Liu
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Zhizhao Yang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Enli Liang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Cheng Fang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Dingrong Zhang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Xiaodong Zhou
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Yuanjie Niu
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Zhongcheng Xin
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Yegang Chen
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China.
| | - Qiliang Cai
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China.
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15
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Wu Y, Yang Z, Jin Y, Yin K, Xiang J, Liu A, Liu C, Dai Z. MicroRNA-125-5p targets Kruppel-like factor 13 (KLF13) to regulate the proliferation, migration, and invasion of human osteosarcoma cells*. ALL LIFE 2021. [DOI: 10.1080/26895293.2021.1905078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Yue Wu
- Department of Orthopaedics, BeiJing United Family Healthcare, Beijing, People’s Republic of China
| | - Zhijun Yang
- Department of Trauma Orthopaedics, The first Affiliated Hospital of South China University, Hengyang, People’s Republic of China
| | - Yi Jin
- Department of Joint Surgery Orthopaedics, ChangSha Central Hospital Affiliated to South China University, ChangSha, People’s Republic of China
| | - Ke Yin
- Department of Trauma Orthopaedics, The first Affiliated Hospital of South China University, Hengyang, People’s Republic of China
| | - Jie Xiang
- Department of Trauma Orthopaedics, The first Affiliated Hospital of South China University, Hengyang, People’s Republic of China
| | - Ansong Liu
- Department of Trauma Orthopaedics, The first Affiliated Hospital of South China University, Hengyang, People’s Republic of China
| | - Chao Liu
- Department of Trauma Orthopaedics, The first Affiliated Hospital of South China University, Hengyang, People’s Republic of China
| | - Zhu Dai
- Department of Trauma Orthopaedics, The first Affiliated Hospital of South China University, Hengyang, People’s Republic of China
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16
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Zhang L, Yu L, Liu Y, Wang S, Hou Z, Zhou J. miR-21-5p promotes cell proliferation by targeting BCL11B in Thp-1 cells. Oncol Lett 2020; 21:119. [PMID: 33376550 DOI: 10.3892/ol.2020.12380] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 11/03/2020] [Indexed: 11/06/2022] Open
Abstract
Acute myeloid leukemia (AML) is a highly heterogeneous disease that remains untreatable. MicroRNAs (miRNAs or miRs) play important roles in the pathogenesis of leukemia. miR-21 is highly expressed in multiple types of human cancer and displays oncogenic activities; however, the clinical significance of miR-21 in AML remains unclear. In the present study, it was demonstrated that miR-21 levels were high in patients with AML and in AML cell lines. Further experiments demonstrated that overexpression of miR-21 in Thp-1 human monocytes derived from acute mononuclear leukemia peripheral blood promoted cell proliferation, while downregulation of miR-21-5p, a mature sequence derived from the 5' end of the miR-21 stem-loop precursor (another mature sequence, miR-21-3p, is derived form 3' end of miR-21), inhibited cell proliferation. Specifically, it was observed that overexpression of miR-21 could promote the transition of Thp-1 cells into the S and G2/M phases of the cell cycle, as shown by flow cytometry. Furthermore, inhibition of miR-21-5p arrested cells in the S and G2/M phases. Finally, BCL11B was determined to be a functional target of miR-21-5p by luciferase assays. Our study revealed functional and mechanistic associations between miR-21 and BCL11B in Thp-1 cells, which could serve to guide clinical treatment of AML.
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Affiliation(s)
- Liang Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, Shandong 250014, P.R. China
| | - Li Yu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, Shandong 250014, P.R. China
| | - Yiran Liu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, Shandong 250014, P.R. China
| | - Shasha Wang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, Shandong 250014, P.R. China
| | - Zhenfeng Hou
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, Shandong 250014, P.R. China
| | - Jun Zhou
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, College of Life Sciences, Shandong Normal University, Jinan, Shandong 250014, P.R. China
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17
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Improving Model Performance on the Stratification of Breast Cancer Patients by Integrating Multiscale Genomic Features. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1475368. [PMID: 32908867 PMCID: PMC7471833 DOI: 10.1155/2020/1475368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/26/2020] [Accepted: 07/18/2020] [Indexed: 11/17/2022]
Abstract
In clinical cancer research, it is a hot topic on how to accurately stratify patients based on genomic data. With the development of next-generation sequencing technology, more and more types of genomic features, such as mRNA expression level, can be used to distinguish cancer patients. Previous studies commonly stratified patients by using a single type of genomic features, which can only reflect one aspect of the cancer. In fact, multiscale genomic features will provide more information and may be helpful for clinical prediction. In addition, most of the conventional machine learning algorithms use a handcrafted gene set as features to construct models, which is generally selected by a statistical method with an arbitrary cut-off, e.g., p value < 0.05. The genes in the gene set are not necessarily related to the cancer and will make the model unreliable. Therefore, in our study, we thoroughly investigated the performance of different machine learning methods on stratifying breast cancer patients with a single type of genomic features. Then, we proposed a strategy, which can take into account the degree of correlation between genes and cancer patients, to identify the features from mRNAs and microRNAs, and evaluated the performance of the models with the new combined features of the multiscale genomic features. The results showed that, compared with the models constructed with a single type of features, the models with the multiscale genomic features generated by our proposed method achieved better performance on stratifying the ER status of breast cancer patients. Moreover, we found that the identified multiscale genomic features were closely related to the cancer by gene set enrichment analysis, indicating that our proposed strategy can well reflect the biological relevance of the genes to breast cancer. In conclusion, modelling with multiscale genomic features closely related to the cancer not only can guarantee the prediction performance of the models but also can effectively provide candidate genes for interpreting the mechanisms of cancer.
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18
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Rzeszutek I, Singh A. Small RNAs, Big Diseases. Int J Mol Sci 2020; 21:E5699. [PMID: 32784829 PMCID: PMC7460979 DOI: 10.3390/ijms21165699] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/06/2020] [Accepted: 08/08/2020] [Indexed: 02/06/2023] Open
Abstract
The past two decades have seen extensive research done to pinpoint the role of microRNAs (miRNAs) that have led to discovering thousands of miRNAs in humans. It is not, therefore, surprising to see many of them implicated in a number of common as well as rare human diseases. In this review article, we summarize the progress in our understanding of miRNA-related research in conjunction with different types of cancers and neurodegenerative diseases, as well as their potential in generating more reliable diagnostic and therapeutic approaches.
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Affiliation(s)
- Iwona Rzeszutek
- Institute of Biology and Biotechnology, Department of Biotechnology, University of Rzeszow, Pigonia 1, 35-310 Rzeszow, Poland
| | - Aditi Singh
- Max Planck Institute for Developmental Biology, Max-Planck-Ring 5, 72076 Tübingen, Germany
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19
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Wang T, Wang J, Ren W, Chen S, Cheng YF, Zhang XM. CircRNA-0008717 promotes cell proliferation, migration, and invasion by regulating miR-203/Slug in esophageal cancer cells. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:999. [PMID: 32953799 PMCID: PMC7475474 DOI: 10.21037/atm-20-5205] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Esophageal cancer (EC) is one of the deadliest cancers worldwide. Circular RNAs (circRNAs) have been implicated in the regulation of multiple human diseases, including cancer. In particular, the dysregulation of circRNA-0008717 has been linked to multiple types of cancer. However, the clinical significance and the molecular mechanisms of circRNA-0008717 in EC need to be further investigated. Therefore, this study aimed to prove the role of circRNA-0008717 in EC and its underlying molecular mechanism of action. Methods The expression of circRNA-0008717, miR-203, and the Slug was measured in two EC cell lines (EC109 and KYSE-150) by qRT-RCR. EC109 and KYSE-150 cells were first transfected with circRNA-0008717 siRNA (si-circRNA). After that, the proliferation, apoptosis, migration, and invasion of EC109 and KYSE-150 cells were measured. The western blot detected Slug, Vimentin, and E-cadherin protein levels. A dual-luciferase reporter gene assay was used to set up the interactions among circRNA-0008717, miR-203, and Slug. Results circRNA-0008717 expression was significantly upregulated in EC cells, and miR-2031 expression was decreased. Moreover, si-circRNA-0008717 or si-Slug inhibited the proliferation, migration, and invasion of EC cells. We found that circRNA-0008717 functioned as a sponge of miR-203, resulting in increased expression of Slug. We also reversed the effect of circRNA-0008717 knockdown on the EC progression by co-transfecting EC cells with a miR-203 inhibitor or Slug. Conclusions The proliferation, invasion, and migration of EC cells were enhanced by circRNA-0008717 sponging the miR-203 to increase Slug expression.
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Affiliation(s)
- Tao Wang
- Department of Radiotherapy, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jian Wang
- Department of Ultrasound, Shandong Province Coal Taishan Sanatorium, Taian, China
| | - Wei Ren
- Department of Radiotherapy, the People's Hospital of Lanling County, Linyi, China
| | - Shuai Chen
- Institute of Immunology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yu-Feng Cheng
- Department of Radiotherapy, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiao-Mei Zhang
- Department of Radiotherapy, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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20
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Zhang Y, Mou C, Shang M, Jiang M, Xu C. Long noncoding RNA RP11-626G11.3 promotes the progression of glioma through miR-375-SP1 axis. Mol Carcinog 2020; 59:492-502. [PMID: 32128886 DOI: 10.1002/mc.23173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 02/10/2020] [Accepted: 02/21/2020] [Indexed: 12/16/2022]
Abstract
Gliomas are the most common malignant tumor in the central nervous system and are also one of the leading causes of death in cancer patients. Recently, mounting evidence suggested that both long noncoding RNAs (lncRNAs) and microRNAs play important roles in the proliferation and invasion of cancers, including gliomas. However, the role of lncRNA RP11-626G11.3 in glioma-genesis is still uncovered. Results indicated that lncRNA RP11-626G11.3 was up-regulated in glioma tissues and cell lines, moreover, its overexpression positively correlated with the poor prognosis and advanced pathological stages. Gain and loss of functional experiments demonstrated that lncRNA RP11-626G11.3 promoted the proliferation and invasion of glioma cells in vitro. The knockdown of lncRNA RP11-626G11.3 repressed the tumor growth in vivo. Mechanistically, lncRNA RP11-626G11.3 positively regulated the SP1 expression via competitively sponging with miR-375. Overall, our study shows that lncRNA RP11-626G11.3 promotes glioma progression by sponging miR-375 to regulate SP1 expression, which may provide a novel therapeutic strategy for glioma.
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Affiliation(s)
- Yahui Zhang
- Department of Pharmacy, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Chengzhi Mou
- Department of Neurosurgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Miaomiao Shang
- Department of Neurosurgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Meng Jiang
- Department of Neurosurgery, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Chunyang Xu
- Department of Surgical Intensive Care Unit, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
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21
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Zaheer U, Faheem M, Qadri I, Begum N, Yassine HM, Al Thani AA, Mathew S. Expression profile of MicroRNA: An Emerging Hallmark of Cancer. Curr Pharm Des 2020; 25:642-653. [PMID: 30914015 DOI: 10.2174/1386207322666190325122821] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/22/2019] [Indexed: 12/28/2022]
Abstract
MicroRNA (miRNAs), a class of small, endogenous non-coding RNA molecules of about 21-24 nucleotides in length, have unraveled a new modulatory network of RNAs that form an additional level of posttranscriptional gene regulation by targeting messenger RNAs (mRNAs). These miRNAs possess the ability to regulate gene expression by modulating the stability of mRNAs, controlling their translation rates, and consequently regulating protein synthesis. Substantial experimental evidence established the involvement of miRNAs in most biological processes like growth, differentiation, development, and metabolism in mammals including humans. An aberrant expression of miRNAs has been implicated in several pathologies, including cancer. The association of miRNAs with tumor growth, development, and metastasis depicts their potential as effective diagnostic and prognostic biomarkers. Furthermore, exploitation of the role of different miRNAs as oncogenes or tumor suppressors has aided in designing several miRNA-based therapeutic approaches for treating cancer patients whose clinical trials are underway. In this review, we aim to summarize the biogenesis of miRNAs and the dysregulations in these pathways that result in various pathologies and in some cases, resistance to drug treatment. We provide a detailed review of the miRNA expression signatures in different cancers along with their diagnostic and prognostic utility. Furthermore, we elaborate on the potential employment of miRNAs to enhance cancer cell apoptosis, regress tumor progression and even overcome miRNA-induced drug resistance.
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Affiliation(s)
- Uzma Zaheer
- Postgraduate Department of Biotechnology, St. Xavier's College, Kolkata, India
| | - Muhammed Faheem
- Department of Biology, King Abdul Aziz University, 80216 Jeddah, Saudi Arabia
| | - Ishtiaq Qadri
- Department of Biology, King Abdul Aziz University, 80216 Jeddah, Saudi Arabia
| | - Nargis Begum
- Postgraduate Department of Biotechnology, Jamal Mohamed College, Trichy, India
| | - Hadi M Yassine
- Biomedical Research Center, Qatar University, Doha, Qatar
| | - Asmaa A Al Thani
- Biomedical Research Center, Qatar University, Doha, Qatar.,Department of Biomedical Science, College of Health Science, Qatar University, Doha, Qatar
| | - Shilu Mathew
- Biomedical Research Center, Qatar University, Doha, Qatar
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22
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Abstract
Chronic heart failure, diabetes, depression, and other chronic diseases are associated with high mortality rate and low cure rate. Exercise induces muscle contraction and secretes multiple myokines, which affects the signaling pathways in skeletal muscle tissues and regulate remote organ functions. Exercise is known to be effective in treating a variety of chronic diseases. Here we summarize how exercise influences skeletal muscle, heart, brain, gut, and liver, and prevents heart failure, cognitive dysfunction, obesity, fatty liver, and other diseases. Exercise training may achieve additional benefits as compared to the present medication for these chronic diseases through cross talk among skeletal muscle and other organs.
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Affiliation(s)
- Zhiqing Fan
- Department of Cardiology, Daqing Qilfield General Hospital, Daqing, China
| | - Minjun Xu
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, China
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Yamamoto M, Sawada K, Kimura T. Therapeutic potential of microRNAs in the regulation of cancer energy metabolism. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:S292. [PMID: 32016011 DOI: 10.21037/atm.2019.11.56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Misa Yamamoto
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kenjiro Sawada
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Osaka, Japan
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Regulation of MicroRNA-155 and Its Related Genes Expression by Inositol Hexaphosphate in Colon Cancer Cells. Molecules 2019; 24:molecules24224153. [PMID: 31744065 PMCID: PMC6891702 DOI: 10.3390/molecules24224153] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/06/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022] Open
Abstract
Inositol hexaphosphate (IP6), a natural dietary component, has been found as an antitumor agent by stimulating apoptosis and inhibiting cancer cell proliferation, their migration, and metastasis in diverse cancers including colon cancer. However, molecular mechanisms of its action have not been well understood. In recent years, microRNAs (miRNAs) have been reported to play important roles in a broad range of biologic processes, such as cell growth, proliferation, apoptosis, or autophagy. These small noncoding molecules regulate post-transcriptional expression of targets genes via degradation of transcript or inhibition of protein synthesis. Aberrant expression and/or dysregulation of miRNAs have been characterized during tumor development and progression, thus, they are potential molecular targets for cancer prevention. The aim of this study was to investigate the effect of IP6 on the miRNAs expression profile in Caco-2 colon cancer cells. 84 miRNAs were analyzed in Caco-2 cells treated with 2.5 mM and 5 mM IP6 by the use of PCR (Polymerase Chain Reaction) array. The effect of 5 mM IP6 on selected potential miR-155 targets was determined by real-time (RT)-qPCR and ELISA (quantitative Polymerase Chain Reaction and Enzyme-Linked Immunosorbent Assay )method. The results indicated alteration in the specific 10 miRNA expression in human colon cancer cells following their treatment with 5 mM IP6. It down-regulated 8 miRNAs (miR-155, miR-210, miR-144, miR-194, miR-26b, miR-126, miR-302c, and miR-29a) and up-regulated 2 miRNAs (miR-223 and miR-196b). In silico analysis revealed that FOXO3a, HIF-1α, and ELK3 mRNAs are those of predicted targets of miR-155. IP6 at the concentration of 5 mM markedly induced FOXO3a and HIF-1a genes’ expression at both mRNA and protein level and decreased the amount of ELK3 mRNA as well as protein concentration in comparison to the control. In conclusion, the present study indicates that one of the mechanisms of antitumor potential of IP6 is down-regulation of the miR-155 expression in human colon cancer cells. Moreover, the expression of genes that are targeted by miRNA are also modulated by IP6.
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Nasr MA, Salah RA, Abd Elkodous M, Elshenawy SE, El-Badri N. Dysregulated MicroRNA Fingerprints and Methylation Patterns in Hepatocellular Carcinoma, Cancer Stem Cells, and Mesenchymal Stem Cells. Front Cell Dev Biol 2019; 7:229. [PMID: 31681762 PMCID: PMC6811506 DOI: 10.3389/fcell.2019.00229] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/26/2019] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the top causes of cancer mortality worldwide. Although HCC has been researched extensively, there is still a need for novel and effective therapeutic interventions. There is substantial evidence that initiation of carcinogenesis in liver cirrhosis, a leading cause of HCC, is mediated by cancer stem cells (CSCs). CSCs were also shown to be responsible for relapse and chemoresistance in several cancers, including HCC. MicroRNAs (miRNAs) constitute important epigenetic markers that regulate carcinogenesis by acting post-transcriptionally on mRNAs, contributing to the progression of HCC. We have previously shown that co-culture of cancer cells with mesenchymal stem cells (MSCs) could induce the reprogramming of MSCs into CSC-like cells. In this review, we evaluate the available data concerning the epigenetic regulation of miRNAs through methylation and the possible role of this regulation in stem cell and somatic reprogramming in HCC.
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Affiliation(s)
- Mohamed A Nasr
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 6th of October City, Egypt
| | - Radwa Ayman Salah
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 6th of October City, Egypt
| | - M Abd Elkodous
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 6th of October City, Egypt
| | - Shimaa E Elshenawy
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 6th of October City, Egypt
| | - Nagwa El-Badri
- Center of Excellence for Stem Cells and Regenerative Medicine (CESC), Zewail City of Science and Technology, 6th of October City, Egypt
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Akazawa Y, Mizuno S, Fujinami N, Suzuki T, Yoshioka Y, Ochiya T, Nakamoto Y, Nakatsura T. Usefulness of serum microRNA as a predictive marker of recurrence and prognosis in biliary tract cancer after radical surgery. Sci Rep 2019; 9:5925. [PMID: 30976046 PMCID: PMC6459925 DOI: 10.1038/s41598-019-42392-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/20/2019] [Indexed: 02/06/2023] Open
Abstract
Biliary tract cancer (BTC) is an aggressive type of malignant tumour. Even after radical resection, the risk of recurrence is still high, resulting in a poor prognosis. Here, we investigated the usefulness of serum miRNAs as predictive markers of recurrence and prognosis for patients with BTC after radical surgery using 66 serum samples that were collected at three time points from 22 patients with BTC who underwent radical surgery. Using microarray analysis, we successfully identified six specific miRNAs (miR-1225-3p, miR-1234-3p, miR1260b, miR-1470, miR-6834-3p, and miR-6875-5p) associated with recurrence and prognosis of BTC after radical surgery. In addition, using a combination of these miRNAs, we developed a recurrence predictive index to predict recurrence in patients with BTC after operation with high accuracy. Patients having higher index scores (≥ cut-off) had significantly worse recurrence-free survival (RFS) and overall survival (OS) than those with lower index scores (<cut-off). Furthermore, the index was an independent factor related to RFS and OS by univariate and multivariate analyses using a Cox hazard proportional model. Overall, our results provided compelling evidence for the potential usefulness of specific serum miRNAs as effective predictive tools for recurrence and prognosis in patients with BTC who underwent radical surgery.
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Affiliation(s)
- Yu Akazawa
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan.,Second Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Shoichi Mizuno
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Norihiro Fujinami
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Toshihiro Suzuki
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Yusuke Yoshioka
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Yasunari Nakamoto
- Second Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Tetsuya Nakatsura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan.
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Meng F, Zhang L. miR-183-5p functions as a tumor suppressor in lung cancer through PIK3CA inhibition. Exp Cell Res 2019; 374:315-322. [DOI: 10.1016/j.yexcr.2018.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/05/2018] [Accepted: 12/03/2018] [Indexed: 01/10/2023]
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Caprettini V, Huang J, Moia F, Jacassi A, Gonano CA, Maccaferri N, Capozza R, Dipalo M, De Angelis F. Enhanced Raman Investigation of Cell Membrane and Intracellular Compounds by 3D Plasmonic Nanoelectrode Arrays. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800560. [PMID: 30581692 PMCID: PMC6299714 DOI: 10.1002/advs.201800560] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 07/31/2018] [Indexed: 05/14/2023]
Abstract
3D nanostructures are widely exploited in cell cultures for many purposes such as controlled drug delivery, transfection, intracellular sampling, and electrical recording. However, little is known about the interaction of the cells with these substrates, and even less about the effects of electroporation on the cellular membrane and the nuclear envelope. This work exploits 3D plasmonic nanoelectrodes to study, by surface-enhanced Raman scattering (SERS), the cell membrane dynamics on the nanostructured substrate before, during, and after electroporation. In vitro cultured cells tightly adhere on 3D plasmonic nanoelectrodes precisely in the plasmonic hot spots, making this kind of investigation possible. After electroporation, the cell membrane dynamics are studied by recording the Raman time traces of biomolecules in contact or next to the 3D plasmonic nanoelectrode. During this process, the 3D plasmonic nanoelectrodes are intracellularly coupled, thus enabling the monitoring of different molecular species, including lipids, proteins, and nucleic acids. Scanning electron microscopy cross-section analysis evidences the possibility of nuclear membrane poration compatible with the reported Raman spectra. These findings may open a new route toward controlled intracellular sampling and intranuclear delivery of genic materials. They also show the possibility of nuclear envelope disruption which may lead to negative side effects.
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Affiliation(s)
| | - Jian‐An Huang
- Istituto Italiano di TecnologiaVia Morego 3016163GenoaItaly
| | - Fabio Moia
- Istituto Italiano di TecnologiaVia Morego 3016163GenoaItaly
| | - Andrea Jacassi
- Istituto Italiano di TecnologiaVia Morego 3016163GenoaItaly
| | | | | | | | - Michele Dipalo
- Istituto Italiano di TecnologiaVia Morego 3016163GenoaItaly
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29
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Zang C, Zhao F, Hua L, Pu Y. The miR-199a-3p regulates the radioresistance of esophageal cancer cells via targeting the AK4 gene. Cancer Cell Int 2018; 18:186. [PMID: 30479565 PMCID: PMC6240238 DOI: 10.1186/s12935-018-0689-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 11/14/2018] [Indexed: 02/08/2023] Open
Abstract
Background MiRNAs was recognized as vital regulators involved in cancer development. Radioresistance remains a major obstacle for effective treatment of cancers. The mechanisms on the miRNA-mediated radioresistance of cancers are still poorly understood. The main subject of this study is to find new miRNA biomarker that regulates the radioresistance of esophageal cancer (EC). Methods The cumulative dose of radiation assays were used to screen the EC radioresistant cell lines. Wound-healing and invasion assays were used to characterize the properties of these cell lines. The following survival fraction experiments were performed to test the effects of miR-199a-3p and AK4 in the radioresistance of EC. In addition, we used the luciferase reporter assays to identify the putative underlying mechanism that relates to the miR-199a-3p regulated radio-resistance. Results We found that the AK4 gene is one of the targets of miR-199a-3p, which promotes the radioresistance of EC cells. The following experiments by force reversal of the miR-199a-3p or AK4 levels confirmed the relationship of miR-199a-3p and AK4 with the radioresistance of EC cells. In addition, the activities of several signaling pathway were drastically altered by the forced changes of the miR-199a-3p level in EC cells. Conclusion Taken together, we found that miR-199a-3p can be potentially used as a biomarker for the EC radioresistance. Moreover, these results provides new insights into the mechanism on the radioresistance of EC cells, and also might guide the clinical therapy of EC.
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Affiliation(s)
- Chunbao Zang
- 1Department of Radiation Oncology, Anhui Provincial Cancer Hospital, West Branch of the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001 Anhui People's Republic of China
| | - Fangfang Zhao
- 2Department of Cancer Epigenetics Program, Anhui Provincial Cancer Hospital, West Branch of the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001 Anhui People's Republic of China
| | - Lei Hua
- 3Department of Provincial Clinical College, Anhui Provincial Hospital of Anhui Medical University, Hefei, 230031 Anhui China
| | - Youguang Pu
- 2Department of Cancer Epigenetics Program, Anhui Provincial Cancer Hospital, West Branch of the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001 Anhui People's Republic of China
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30
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Port M, Hérodin F, Valente M, Drouet M, Ostheim P, Majewski M, Abend M. Persistent mRNA and miRNA expression changes in irradiated baboons. Sci Rep 2018; 8:15353. [PMID: 30337559 PMCID: PMC6194144 DOI: 10.1038/s41598-018-33544-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 10/01/2018] [Indexed: 11/09/2022] Open
Abstract
We examined the transcriptome/post-transcriptome for persistent gene expression changes after radiation exposure in a baboon model. Eighteen baboons were irradiated with a whole body equivalent dose of 2.5 or 5 Gy. Blood samples were taken before, 7, 28 and 75–106 days after radiation exposure. Stage I was a whole genome screening for mRNA combined with a qRT-PCR platform for detection of 667 miRNAs. Candidate mRNAs and miRNAs differentially up- or down-regulated in stage I were chosen for validation in stage II using the remaining samples. Only 12 of 32 candidate genes provided analyzable results with two mRNAs showing significant 3–5-fold differences in gene expression over the reference (p < 0.0001). From 667 candidate miRNAs, 290 miRNA were eligible for analysis with 21 miRNAs independently validated using qRT-PCR. These miRNAs showed persistent expression changes on each day and over days 7–106 days after exposure (n = 7). In particular miR-212 involved in radiosensitivity and immune modulation appeared persistently and 48–77-fold up-regulated over the entire time period. We are finally trying to put our results into a context of clinical implications and provide possible hints on underlying molecular mechanisms to be examined in future studies.
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Affiliation(s)
- Matthias Port
- Bundeswehr Institute of Radiobiology, Neuherbergstr. 11, Munich, 80937, Germany
| | - Francis Hérodin
- Institut de Recherche Biomedicale des Armees, Bretigny-sur-Orge, 91220, France
| | - Marco Valente
- Institut de Recherche Biomedicale des Armees, Bretigny-sur-Orge, 91220, France
| | - Michel Drouet
- Institut de Recherche Biomedicale des Armees, Bretigny-sur-Orge, 91220, France
| | - Patrick Ostheim
- Bundeswehr Institute of Radiobiology, Neuherbergstr. 11, Munich, 80937, Germany
| | - Matthäus Majewski
- Bundeswehr Institute of Radiobiology, Neuherbergstr. 11, Munich, 80937, Germany
| | - Michael Abend
- Bundeswehr Institute of Radiobiology, Neuherbergstr. 11, Munich, 80937, Germany.
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31
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Zhang L, Wang Q, Wang F, Zhang X, Zhang L, Tang Y, Wang S. LncRNA LINC01446 promotes glioblastoma progression by modulating miR-489-3p/TPT1 axis. Biochem Biophys Res Commun 2018; 503:1484-1490. [PMID: 30029885 DOI: 10.1016/j.bbrc.2018.07.067] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 07/12/2018] [Indexed: 12/21/2022]
Abstract
Accumulating evidence indicates that long noncoding RNA (lncRNA) is implicated in human diseases, including cancers. However, how lncRNA regulates glioblastoma (GBM) progression is poorly understood. Our study revealed a novel lncRNA LINC01446 whose expression was elevated in GBM tissues. Besides, high expression of LINC01446 indicated a poor prognosis in GBM patients. Functionally, LINC01446 knockdown dramatically inhibited GBM cell proliferation, arrested cell-cycle progression and attenuated invasion in vitro. Furthermore, the xenograft mouse model showed that LINC01446 silence led to impaired tumor growth in vivo. Mechanistically, bioinformatics analysis showed that LINC01446 acted as a sponge for miR-489-3p which targeted TPT1. Though inhibiting miR-489-3p availability, LINC01446 promoted TPT1 expression in GBM cells. Rescue experiments demonstrated that restoration of TPT1 could significantly rescued the effects of LINC01446 silence or miR-489-3p overexpression. Taken together, this study demonstrates a novel singling pathway of LINC01446/miR-489-3p/TPT1 cascade that regulates GBM progression.
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MESH Headings
- Animals
- Biomarkers, Tumor/metabolism
- Disease Progression
- Female
- Glioblastoma/metabolism
- Glioblastoma/pathology
- Humans
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/metabolism
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- RNA, Long Noncoding/biosynthesis
- RNA, Long Noncoding/metabolism
- RNA, Long Noncoding/pharmacology
- Tumor Cells, Cultured
- Tumor Protein, Translationally-Controlled 1
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Affiliation(s)
- Li Zhang
- Experiment Center of Basic Medical Sciences of Kunming Medical University, Kunming, 650500, China
| | - Qin Wang
- Geriatrics Hospital of Yunnan, Kunming, 650033, China
| | - Fei Wang
- Department of Neurosurgery, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - Xiang Zhang
- Experiment Center of Basic Medical Sciences of Kunming Medical University, Kunming, 650500, China
| | - Li Zhang
- Editorial Department of Journal of Kunming Medical University, Kunming, 650500, China
| | - Ying Tang
- The Electron Microscopy Laboratory, Experiment Center for Medical Science Research of Kunming Medical University, Kunming, 650500, China
| | - Shaoyun Wang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, 650106, China.
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32
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Xu J, Shao T, Ding N, Li Y, Li X. miRNA-miRNA crosstalk: from genomics to phenomics. Brief Bioinform 2018; 18:1002-1011. [PMID: 27551063 DOI: 10.1093/bib/bbw073] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Indexed: 12/11/2022] Open
Abstract
The discovery of microRNA (miRNA)-miRNA crosstalk has greatly improved our understanding of complex gene regulatory networks in normal and disease-specific physiological conditions. Numerous approaches have been proposed for modeling miRNA-miRNA networks based on genomic sequences, miRNA-mRNA regulation, functional information and phenomics alone, or by integrating heterogeneous data. In addition, it is expected that miRNA-miRNA crosstalk can be reprogrammed in different tissues or specific diseases. Thus, transcriptome data have also been integrated to construct context-specific miRNA-miRNA networks. In this review, we summarize the state-of-the-art miRNA-miRNA network modeling methods, which range from genomics to phenomics, where we focus on the need to integrate heterogeneous types of omics data. Finally, we suggest future directions for studies of crosstalk of noncoding RNAs. This comprehensive summarization and discussion elucidated in this work provide constructive insights into miRNA-miRNA crosstalk.
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33
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Zhang X, Li F, Zhu L. Clinical significance and functions of microRNA-93/CDKN1A axis in human cervical cancer. Life Sci 2018; 209:242-248. [PMID: 30098344 DOI: 10.1016/j.lfs.2018.08.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 07/29/2018] [Accepted: 08/07/2018] [Indexed: 12/21/2022]
Abstract
AIM Accumulating studies have revealed that microRNA (miR)-93 may exert an oncogenic role in various cancers via inhibiting CDKN1A. However, the involvement of miR-93/CDKN1A axis in cervical cancer remains unclear. We aimed to investigate expression pattern, clinical significance and potential functions of miR-93/CDKN1A axis in cervical cancer. METHODS Expression levels of miR-93 and CDKN1A mRNA in 100 pairs of cervical cancer and matched non-cancerous tissue samples were detected by quantitative-PCR. Statistical analyses were performed to evaluate associations of miR-93 and/or CDKN1A expression with various clinicopathologic features and patients' prognosis. The functions of miR-93/CDKN1A axis on cell proliferation and invasion were also examined. RESULTS Compared to non-cancerous tissues, the expression levels of miR-93 and CDKN1A were dramatically increased and decreased in cervical cancer tissues, respectively (both P < 0.01). High miR-93 and/or low CDKN1A expression were significantly associated with advanced International Federation of Gynecology and Obstetrics stage, the presence of lymph node metastasis and recurrence (all P < 0.05). Importantly, patients with high miR-93 and/or low CDKN1A expression had shorter overall survival than those with low miR-93 and/or high CDKN1A expression. The multivariate analysis identified miR-93 and/or CDKN1A expression as independent prognostic factors of cervical cancer. Functionally, miR-93 promoted cell proliferation and invasion of cervical cancer cells via inhibiting CDKN1A. CONCLUSION miR-93 upregulation and CDKN1A downregulation may be both associated with the development, progression and patients' prognosis of cervical cancer. miR-93/CDKN1A axis may also play an important role in the malignancy of cervical cancer cells, suggesting its potential as a therapeutic target for this cancer.
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Affiliation(s)
- Xiaofeng Zhang
- Department of Radiology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Fengshuang Li
- Department of Gynecology & Tumor, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - Linzhong Zhu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Interventional Therapy, Peking University Cancer Hospital & Institute, China.
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Abstract
Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with pronounced morbidity and mortality. Its prevalence, expected to further increase for the forthcoming years, and associated frequent hospitalizations turn AF into a major health problem. Structural and electrical atrial remodelling underlie the substrate for AF, but the exact mechanisms driving this remodelling remain incompletely understood. Recent studies have shown that microRNAs (miRNA), short non-coding RNAs that regulate gene expression, may be involved in the pathophysiology of AF. MiRNAs have been implicated in AF-induced ion channel remodelling and fibrosis. MiRNAs could therefore provide insight into AF pathophysiology or become novel targets for therapy with miRNA mimics or anti-miRNAs. Moreover, circulating miRNAs have been suggested as a new class of diagnostic and prognostic biomarkers of AF. However, the origin and function of miRNAs in tissue and plasma frequently remain unknown and studies investigating the role of miRNAs in AF vary in design and focus and even present contradicting results. Here, we provide a systematic review of the available clinical and functional studies investigating the tissue and plasma miRNAs in AF and will thereafter discuss the potential of miRNAs as biomarkers or novel therapeutic targets in AF.
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35
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Ahmed FE, Gouda MM, Hussein LA, Ahmed NC, Vos PW, Mohammad MA. Role of Melt Curve Analysis in Interpretation of Nutrigenomics' MicroRNA Expression Data. Cancer Genomics Proteomics 2018; 14:469-481. [PMID: 29109097 DOI: 10.21873/cgp.20057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 10/05/2017] [Accepted: 10/26/2017] [Indexed: 12/23/2022] Open
Abstract
This article illustrates the importance of melt curve analysis (MCA) in interpretation of mild nutrogenomic micro(mi)RNA expression data, by measuring the magnitude of the expression of key miRNA molecules in stool of healthy human adults as molecular markers, following the intake of Pomegranate juice (PGJ), functional fermented sobya (FS), rich in potential probiotic lactobacilli, or their combination. Total small RNA was isolated from stool of 25 volunteers before and following a three-week dietary intervention trial. Expression of 88 miRNA genes was evaluated using Qiagen's 96 well plate RT2 miRNA qPCR arrays. Employing parallel coordinates plots, there was no observed significant separation for the gene expression (Cq) values, using Roche 480® PCR LightCycler instrument used in this study, and none of the miRNAs showed significant statistical expression after controlling for the false discovery rate. On the other hand, melting temperature profiles produced during PCR amplification run, found seven significant genes (miR-184, miR-203, miR-373, miR-124, miR-96, miR-373 and miR-301a), which separated candidate miRNAs that could function as novel molecular markers of relevance to oxidative stress and immunoglobulin function, for the intake of polyphenol (PP)-rich, functional fermented foods rich in lactobacilli (FS), or their combination. We elaborate on these data, and present a detailed review on use of melt curves for analyzing nutigenomic miRNA expression data, which initially appear to show no significant expressions, but are actually more subtle than this simplistic view, necessitating the understanding of the role of MCA for a comprehensive understanding of what the collective expression and MCA data collectively imply.
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Affiliation(s)
- Farid E Ahmed
- GEM Tox Labs, Institute for Research in Biotechnology, Greenville, NC, U.S.A.
| | - Mostafa M Gouda
- Department of Nutrition & Food Science, National Research Centre, Dokki, Cairo, Egypt
| | - Laila A Hussein
- Department of Nutrition & Food Science, National Research Centre, Dokki, Cairo, Egypt
| | - Nancy C Ahmed
- GEM Tox Labs, Institute for Research in Biotechnology, Greenville, NC, U.S.A
| | - Paul W Vos
- Department of Biostatistics, College of Allied Health Sciences, East Carolina University, Greenville, NC, U.S.A
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Lei W, Yan C, Ya J, Yong D, Yujun B, Kai L. MiR-199a-3p affects the multi-chemoresistance of osteosarcoma through targeting AK4. BMC Cancer 2018; 18:631. [PMID: 29866054 PMCID: PMC5987492 DOI: 10.1186/s12885-018-4460-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 04/30/2018] [Indexed: 12/12/2022] Open
Abstract
Background MicroRNAs (miRNAs) play vital roles in regulating various biological processes. The dysregulations of miRNAs may result in severe human diseases, including cancer. Methods We performed the qRT-PCR, western blot and the luciferase reporter assays to test whether Adenylate Kinase 4 (AK4) is the target of miR-199a-3p. Up- or down-regulation of miR-199a-3p and/or the AK4 gene was done to detect their roles in OS multi-drug resistance using drug resistance profiling assays. We further predicted the putative signal pathway involved in the miR-199a-3p-mediated OS drug-resistance. Results The AK4 gene is one of the targets of miR-199a-3p and negatively correlates with the effect of miR-199a-3p on OS drug-resistance. In addition, the activity of the NF-кB signaling pathway was drastically altered by the forced changes of the miR-199a-3p level in OS cells. Conclusions Our data revealed that both miR-199a-3p and its target gene AK4 are reversely correlated with the OS drug resistance. Electronic supplementary material The online version of this article (10.1186/s12885-018-4460-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wang Lei
- Department of orthopaedic surgery, the third people's hospital of Hefei, Hefei, 230031, Anhui, China
| | - Chen Yan
- Department of orthopaedic surgery, the third people's hospital of Hefei, Hefei, 230031, Anhui, China
| | - Jiang Ya
- Department of orthopaedic surgery, the third people's hospital of Hefei, Hefei, 230031, Anhui, China
| | - Dai Yong
- Department of orthopaedic surgery, the third people's hospital of Hefei, Hefei, 230031, Anhui, China
| | - Bian Yujun
- Department of orthopaedic surgery, the third people's hospital of Hefei, Hefei, 230031, Anhui, China
| | - Liu Kai
- Department of orthopaedic surgery, the third people's hospital of Hefei, Hefei, 230031, Anhui, China.
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Chaudhary V, Jangra S, Yadav NR. Nanotechnology based approaches for detection and delivery of microRNA in healthcare and crop protection. J Nanobiotechnology 2018; 16:40. [PMID: 29653577 PMCID: PMC5897953 DOI: 10.1186/s12951-018-0368-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 04/07/2018] [Indexed: 12/31/2022] Open
Abstract
Nanobiotechnology has the potential to revolutionize diverse sectors including medicine, agriculture, food, textile and pharmaceuticals. Disease diagnostics, therapeutics and crop protection strategies are fast emerging using nanomaterials preferably nanobiomaterials. It has potential for development of novel nanobiomolecules which offer several advantages over conventional treatment methods. RNA nanoparticles with many unique features are promising candidates in disease treatment. The miRNAs are involved in many biochemical and developmental pathways and their regulation in plants and animals. These appear to be a powerful tool for controlling various pathological diseases in human, plants and animals, however there are challenges associated with miRNA based nanotechnology. Several advancements made in the field of miRNA therapeutics make it an attractive approach, but a lot more has to be explored in nanotechnology assisted miRNA therapy. The miRNA based technologies can be employed for detection and combating crop diseases as well. Despite these potential advantages, nanobiotechnology applications in the agricultural sector are still in its infancy and have not yet made its mark in comparison with healthcare sector. The review provides a platform to discuss nature, role and use of miRNAs in nanobiotechnology applications.
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Affiliation(s)
- Vrantika Chaudhary
- Department of Molecular Biology, Biotechnology and Bioinformatics, CCS Haryana Agricultural University, Hisar, 125004 India
| | - Sumit Jangra
- Department of Molecular Biology, Biotechnology and Bioinformatics, CCS Haryana Agricultural University, Hisar, 125004 India
| | - Neelam R. Yadav
- Department of Molecular Biology, Biotechnology and Bioinformatics, CCS Haryana Agricultural University, Hisar, 125004 India
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38
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Tshering G, Dorji PW, Chaijaroenkul W, Na-Bangchang K. Biomarkers for the Diagnosis of Cholangiocarcinoma: A Systematic Review. Am J Trop Med Hyg 2018; 98:1788-1797. [PMID: 29637880 DOI: 10.4269/ajtmh.17-0879] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cholangiocarcinoma (CCA), a malignant tumor of the bile duct, is a major public health problem in many Southeast Asian countries, particularly Thailand. The slow progression makes it difficult for early diagnosis and most patients are detected in advanced stages. This study aimed to review all relevant articles related to the biomarkers for the diagnosis of CCA and point out potential biomarkers. A thorough search was performed in PubMed and ScienceDirect for CCA biomarker articles. Required data were extracted. A total of 46 articles that fulfilled the inclusion and had none of the exclusion criteria were included in the analysis (17, 22, 3, 4, and 1 articles on blood, tissue, bile, both blood and tissue, and urine biomarkers, respectively). Carbohydrate antigen 19-9 (CA19-9) and carcinoembryonic antigen (CEA), either alone or in combination with other biomarkers, are the most commonly studied biomarkers in the serum. Their sensitivity and specificity ranged from 47.2% to 98.2% and 89.7% to 100%, respectively. However, in the tissue, gene methylations and DNA-related markers were the most studied CCA biomarkers. Their sensitivity and specificity ranged from 58% to 87% and 98% to 100%, respectively. Some articles investigated biomarkers both in blood and tissues, particularly CA19-9 and CEA, with sensitivity and specificity ranging from 33% to 100% and 50% to 97.7%, respectively. Although quite a number of biomarkers with a potential role in the early detection of CCA have been established, it is difficult to single out any particular marker that could be used in the routine clinical settings.
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Affiliation(s)
- Gyem Tshering
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Palden Wangyel Dorji
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Wanna Chaijaroenkul
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Kesara Na-Bangchang
- Center of Excellence in Pharmacology and Molecular Biology of Malaria and Cholangiocarcinoma, Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand.,Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
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39
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miR-501 is upregulated in cervical cancer and promotes cell proliferation, migration and invasion by targeting CYLD. Chem Biol Interact 2018; 285:85-95. [DOI: 10.1016/j.cbi.2018.02.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 01/24/2018] [Accepted: 02/19/2018] [Indexed: 12/29/2022]
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Zu C, Liu S, Cao W, Liu Z, Qiang H, Li Y, Cheng C, Ji L, Li J, Li J. MiR-590-3p suppresses epithelial-mesenchymal transition in intrahepatic cholangiocarcinoma by inhibiting SIP1 expression. Oncotarget 2018; 8:34698-34708. [PMID: 28423728 PMCID: PMC5471004 DOI: 10.18632/oncotarget.16150] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/08/2017] [Indexed: 12/29/2022] Open
Abstract
The functional roles and clinical significances of miR-590-3p in ICC remain unclear. In the current study, we investigated the expression of miR-590-3p in tissues and sera of ICC by real-time quantitative polymerase chain reaction. We found miR-590-3p was significantly down-regulated in the sera and tissues of ICC patients, especially in those patients with lymph node metastasis or distant metastasis. AUC curves and Cox proportional hazards mode revealed serum miR-590-3p could be novel diagnostic and prognostic biomarker for ICC patients. MiR-590-3p dramatically suppressed epithelial-mesenchymal transition, cell migration, and invasion of ICC cells. SIP1 was identified as direct and functional target of miR-590-3p in ICC cells by luciferase assays. Finally, we found SIP1 expression was inversely correlated with miR-590-3p and closely related to diminished survival in ICC patients. These findings reveal functional and mechanistic roles of miR-590-3p and EMT activator SIP1 in the pathogenesis of ICC.
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Affiliation(s)
- Chao Zu
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Shizhang Liu
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Wei Cao
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Zongzhi Liu
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Hui Qiang
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Yong Li
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Chong Cheng
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Le Ji
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Jianhui Li
- Department of Surgical Oncology, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
| | - Jingyuan Li
- Department of Orthopaedics, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710068, Shaanxi Province, P.R. China
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Ankasha SJ, Shafiee MN, Wahab NA, Ali RAR, Mokhtar NM. Post-transcriptional regulation of microRNAs in cancer: From prediction to validation. Oncol Rev 2018; 12:344. [PMID: 29989022 PMCID: PMC6037043 DOI: 10.4081/oncol.2018.344] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/01/2018] [Indexed: 12/11/2022] Open
Abstract
MicroRNA (miRNA) is a small non-coding RNA with an established function to regulate genes at the post-transcriptional level leading to suppression or degradation of its messenger RNA expression (mRNA). Its dysregulation plays a vital role in a variety of biological and pathological processes including cancer. A lot of algorithms have been established to predict the target sites of miRNA, but experimentally identifying and validating its target region is still lacking. Guidance in experimental procedures is really needed to find genuine miRNA targets. Therefore, in this review, we provide an outline on the workflow in predicting and validating the targeted sites of miRNA using several methods as a guideline for the scientists. The final outcome of this type of experiment is essential to explore the major impact of miRNAmRNA interaction involved in the biological processes and to assist miRNA-based drug development in the future.
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Affiliation(s)
| | - Mohamad Nasir Shafiee
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University Kebangsaan
| | | | - Raja Affendi Raja Ali
- Gastroenterology Unit, Department of Medicine, Faculty of Medicine, University Kebangsaan, Malaysia
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Wang Y, Shi J, Wu Y, Xu W, Wang Q, Zhang J, Jiang M, Gu G. Use of Luminex xMAP bead-based suspension array for detecting microRNA in NSCLC tissues and its clinical application. TUMORI JOURNAL 2018; 98:792-9. [DOI: 10.1177/030089161209800618] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background We measured the expression of microRNA (miRNA) in non-small cell lung cancer (NSCLC) tissues using the Luminex xMAP bead-based suspension array. We discuss the feasibility of employing this method to detect miRNA in NSCLC and explore its value as a high-throughput miRNA array. Methods We performed the methodological analysis of xMAP with oligoribonucleic acid references. We detected the expression of miR-21, miR, miR-31, miR-222, miR-145 and miR 40 NSCLC cancer tissues and adjacent normal tissues by xMAP bead-based suspension array. We selected miR-191 and miR-103 as the house-keeping genes (internal control). We also analyzed the relationship between xMAP and RT-PCR. Results The methodological analysis parameters of xMAP are quite good. The expression of miR-21, miR, miR-31 and miR-222 was higher in NSCLC tissues than in adjacent tissues, while the expression of miR-145 and miR-126 was lower in NSCLC tissues than in adjacent tissues. The expression of miR-145 and miR-126 decreased with disease progression. The intraassay and interassay coefficients of variation were lower in xMAP than in RT-PCR. xMAP proved cheaper and more flexible in detecting multiple miRNAs of one sample. Conclusions The Luminex xMAP bead-based suspension array for detecting miRNA has many advantages, such as allowing a smaller sample size (only 2 μL), no sample amplification, fast detection, high throughput, and flexible combination of multiple detection targets. The high throughput testing technology shows a great advantage in saving time and labor. We found that the Luminex xMAP bead-based suspension array is a good and feasible method for detecting miRNA expression with high-throughput technology.
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Affiliation(s)
- Yanan Wang
- Department of Clinical Laboratory, the First Affiliated Hospital of Suzhou University, the Laboratory of Clinical Immunology in Jiangsu Province, Suzhou
- Department of Clinical Laboratory, Suzhou Municipal Hospital, The Affiliated Hospital of Nanjing Medical University, Suzhou
| | - Jinfang Shi
- Department of Clinical Laboratory, the First Affiliated Hospital of Suzhou University, the Laboratory of Clinical Immunology in Jiangsu Province, Suzhou
| | - Yuanjian Wu
- Department of Clinical Laboratory, Suzhou Municipal Hospital, The Affiliated Hospital of Nanjing Medical University, Suzhou
| | - Weidong Xu
- Department of Clinical Laboratory, Suzhou Municipal Hospital, The Affiliated Hospital of Nanjing Medical University, Suzhou
| | - Qinxi Wang
- Shanghai Tellgen Life Science Co. Ltd, Shanghai, China
| | - Jing Zhang
- Department of Clinical Laboratory, the First Affiliated Hospital of Suzhou University, the Laboratory of Clinical Immunology in Jiangsu Province, Suzhou
| | - Min Jiang
- Department of Clinical Laboratory, the First Affiliated Hospital of Suzhou University, the Laboratory of Clinical Immunology in Jiangsu Province, Suzhou
| | - Guohao Gu
- Department of Clinical Laboratory, the First Affiliated Hospital of Suzhou University, the Laboratory of Clinical Immunology in Jiangsu Province, Suzhou
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Ma Y, Xu P, Mi Y, Wang W, Pan X, Wu X, He Q, Liu H, Tang W, An H. Plasma MiRNA alterations between NSCLC patients harboring Del19 and L858R EGFR mutations. Oncotarget 2018; 7:54965-54972. [PMID: 27463019 PMCID: PMC5342394 DOI: 10.18632/oncotarget.10829] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 07/10/2016] [Indexed: 01/06/2023] Open
Abstract
Based on recognition of driver mutations, treatment paradigm for non-small-cell lung cancer (NSCLC) patients has been shifted. However, recently exon 19 deletion mutation (del19) of epidermal growth factor receptor (EGFR) clearly shows better clinical benefit over single-point substitution mutation L858R in exon 21 (L858R). The aim of this study was to investigate the difference by analyzing the expression of plasma microRNAs (miRNAs) of NSCLC patients with EGFR mutation del19 or L858R. MiRNA microarray of plasma from patients' blood identified 79 mapped, network-eligible miRNAs (fold > 5), of which 76 were up regulated and 3 were down regulated. Genetic network was performed with Ingenuity Pathway Analysis (IPA). Among analysis, MYC, Argonaute2 (AGO2), Y-box binding protein 1 (YBX1), cyclin E1 (CCNE1) were involved in organismal abnormalities and cancer. Our findings provide information on the epigenetic signature of the two major sensitive mutations among NSCLC and add to the understanding of mechanisms underlying the different outcomes.
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Affiliation(s)
- Yihan Ma
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Peiqi Xu
- Reproduction Center, The Second Affiliated Hospital of Kunming Medical University 650101, Yunnan, China
| | - Yanjun Mi
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Wenyi Wang
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Xiaoyan Pan
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Xiaoting Wu
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Qi He
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Hongming Liu
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Weiwei Tang
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
| | - Hanxiang An
- Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, 361003, Fujian, China
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Yuan H, Chen Z, Bai S, Wei H, Wang Y, Ji R, Guo Q, Li Q, Ye Y, Wu J, Zhou Y, Qiao L. Molecular mechanisms of lncRNA SMARCC2/miR-551b-3p/TMPRSS4 axis in gastric cancer. Cancer Lett 2018; 418:84-96. [PMID: 29337109 DOI: 10.1016/j.canlet.2018.01.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 12/12/2022]
Abstract
Decreased expression of miR-551b-3p has been identified in gastric cancer tissues but its biological role and underlying mechanism in this malignancy is poorly understood. In this study, we show that the expression of miR-551b-3p negatively correlates with the depth of tumour invasion and lymphatic metastasis, but it positively correlates with tumour differentiation and the patient survival. MiR-551b-3p negatively affects the proliferation, mobility and invasiveness of gastric cancer cells. LncRNA SMARCC2 inhibits the expression of miR-551b-3p through binding to its mRNA response elements in gastric cancer cells. Overexpression of LncRNA SMARCC2 enhances the proliferation and migration of gastric cancer cells, while inhibition of LncRNA SMARCC2 does the opposite. TMPRSS4 is a direct target gene of miR-551b-3p. We conclude that miR-551b-3p functions as a tumour suppressor gene in gastric cancer, and its function is regulated by LncRNA SMARCC2/miR-551b-3p/TMPRSS4 axis.
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Affiliation(s)
- Hao Yuan
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Zhaofeng Chen
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Suyang Bai
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Hui Wei
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Yuping Wang
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Rui Ji
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Qinghong Guo
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Qiang Li
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Yuwei Ye
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Jing Wu
- Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
| | - Yongning Zhou
- Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory for Gastrointestinal Diseases of Gansu Province, Lanzhou University, Lanzhou, China.
| | - Liang Qiao
- Storr Liver Centre, Westmead Institute for Medical Research, University of Sydney and Westmead Hospital, Westmead, NSW 2145, Australia.
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Rane JK, Erb HHH, Nappo G, Mann VM, Simms MS, Collins AT, Visakorpi T, Maitland NJ. Inhibition of the glucocorticoid receptor results in an enhanced miR-99a/100-mediated radiation response in stem-like cells from human prostate cancers. Oncotarget 2018; 7:51965-51980. [PMID: 27340920 PMCID: PMC5239528 DOI: 10.18632/oncotarget.10207] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 06/09/2016] [Indexed: 12/21/2022] Open
Abstract
Radiation therapy is a major primary treatment option for both localized early stage prostate cancer, and for advanced, regionally un-resectable, cancer. However, around 30% of patients still experience biochemical recurrence after radiation therapy within 10 years. Thus, identification of better biomarkers and new targets are urgently required to improve current therapeutic strategies. The miR-99 family has been shown to play an important role in the regulation of the DNA damage response, via targeting of the SWI/SNF chromatin remodeling factors, SMARCA5 and SMARCD1 in cell line models. In the present study, we have demonstrated that low expression of miR-99a and miR-100 is present in cell populations which are relatively radiation insensitive, for example in prostate cancer stem cells and in castration-resistant prostate cancer. Additionally, treatment of cells with the synthetic glucocorticoid, Dexamethasone resulted in decreased miR-99a and 100 expression, suggesting a new mechanism of miR-99a and 100 regulation in androgen-independent prostate cells. Strikingly, treatment of prostate cells with the glucocorticoid receptor inhibitor, Mifepristone was found to sensitize prostate cells to radiation by increasing the levels of miR-99a and miR-100. These results qualify the miR99 family as markers of radiation sensitivity and as potential therapeutic targets to improve efficiency of radiotherapy.
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Affiliation(s)
- Jayant K Rane
- The Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire, YO10 5DD, UK.,Leukaemia and Stem Cell Biology Group, Department of Haematological Medicine, King's College London, Rayne Institute, London, SE5 9NU, UK
| | - Holger H H Erb
- The Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire, YO10 5DD, UK
| | - Giovanna Nappo
- The Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire, YO10 5DD, UK.,Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, Magna Græcia University, 88100, Catanzaro, Italy
| | - Vincent M Mann
- Hull York Medical School, University of Hull, Hull, East Yorkshire, HU6 7RX, UK.,Department of Urology, Castle Hill Hospital, Cottingham, East Yorkshire, HU16 5JQ, UK
| | - Matthew S Simms
- Hull York Medical School, University of Hull, Hull, East Yorkshire, HU6 7RX, UK.,Department of Urology, Castle Hill Hospital, Cottingham, East Yorkshire, HU16 5JQ, UK
| | - Anne T Collins
- The Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire, YO10 5DD, UK
| | - Tapio Visakorpi
- Prostate Cancer Research Center, Institute of Biosciences and Medical Technology - BioMediTech, University of Tampere and Tampere University Hospital, Tampere, 33520 Finland
| | - Norman J Maitland
- The Cancer Research Unit, Department of Biology, University of York, York, North Yorkshire, YO10 5DD, UK.,Hull York Medical School, University of Hull, Hull, East Yorkshire, HU6 7RX, UK
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Infantile hemangioma: factors causing recurrence after propranolol treatment. Pediatr Res 2018; 83:175-182. [PMID: 29019471 DOI: 10.1038/pr.2017.220] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 08/31/2017] [Indexed: 12/21/2022]
Abstract
BackgroundPropranolol is the first-choice treatment for severe infantile hemangioma (IH). However, 10- 30% of lesions relapse after propranolol treatment. The mechanisms underlying IH recurrence after propranolol treatment have not been completely elucidated.MethodsThis study combined an examination of hemodynamic changes with research regarding hemangioma stem cells (hscs) with differentially expressed microRNAs (miRNAs) to identify the factors affecting IH recurrence after propranolol treatment. Hemodynamic changes were monitored in 21 recurrent cases using high-frequency color Doppler ultrasound, and hscs were treated with different concentrations of propranolol. The levels of differentially expressed miRNAs and the activity of related pathways were then compared between 18 recurrent and 20 non-recurrent IH cases.ResultsDuring treatment, lesion depth and vessel density decreased, and the lesion resistance index increased. Obvious lesions and vessel signals were observed in recurrent cases compared with non-recurrent cases. Propranolol effectively inhibited hscs proliferation. Twenty-two differentially expressed miRNAs were found in the recurrent group compared with the non-recurrent group.ConclusionRecurrence may be attributed to a combination of events. Serum biomarkers and drug treatments for IH recurrence must be studied further.
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Ahmed FE, Ahmed NC, Gouda MM, Vos PW, Bonnerup C. RT-qPCR for Fecal Mature MicroRNA Quantification and Validation. Methods Mol Biol 2018; 1765:203-215. [PMID: 29589310 DOI: 10.1007/978-1-4939-7765-9_13] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
By routinely and systematically being able to perform quantitative stem-loop reverse transcriptase (RT) followed by TaqMan® minor-groove binding (MGB) probe, real-time quantitative PCR analysis on exfoliated enriched colonocytes in stool, using human (Homo sapiens, hsa) micro(mi)RNAs to monitor changes of their expression at various stages of colorectal (CRC) progression, this method allows for the reliable and quantitative diagnostic screening of colon cancer (CC). Although the expression of some miRNA genes tested in tissue shows less variability in normal or cancerous patients than in stool, the noninvasive stool by itself is well suited for CC screening. An miRNA approach using stool promises to offer more sensitivity and specificity than currently used genomic, methylomic, or proteomic methods for CC screening.To present an application of employing miRNAs as diagnostic markers for CC screening, we carried out global microarray expression studies on stool colonocytes isolated by paramagnetic beads, using Affymetrix GeneChip miRNA 3.0 Array, to select a panel of miRNAs for subsequent focused semiquantitative PCR analysis studies. We then conducted a stem-loop RT-TaqMan® MGB probes, followed by a modified real-time qPCR expression study on 20 selected miRNAs for subsequent validation of the extracted immunocaptured total small RNA isolated from stool colonocytes. Results showed 12 miRNAs (miR-7, miR-17, miR-20a, miR-21, miR-92a, miR-96, miR-106a, miR-134, miR-183, miR-196a, miR-199a-3p, and miR214) to have an increased expression in stool of CC patients, and that later TNM stages exhibited more increased expressions than adenomas, while 8 miRNAs (miR-9, miR-29b, miR-127-5p, miR-138, miR-143, miR-146a, miR-222, and miR-938) showed decreased expressions in stool of CC patients, which becomes more pronounced as the cancer progresses from early to late TNM stages (0-IV).
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Affiliation(s)
- Farid E Ahmed
- GEM Tox Labs, Institute for Research in Biotechnology, Greenville, NC, USA.
| | - Nancy C Ahmed
- GEM Tox Labs, Institute for Research in Biotechnology, Greenville, NC, USA
| | - Mostafa M Gouda
- Department of Nutrition & Food Science, National Research Center, Cairo, Egypt
| | - Paul W Vos
- Department of Biostatistics, East Carolina University, Greenville, NC, USA
| | - Chris Bonnerup
- Department of Physics, East Carolina University, Greenville, NC, USA
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Circulating MicroRNA-21 Is Involved in Lymph Node Metastasis in Cervical Cancer by Targeting RASA1. Int J Gynecol Cancer 2017; 26:810-6. [PMID: 27101583 DOI: 10.1097/igc.0000000000000694] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE The aims of this study were to discover if increased circulating microRNA-21 (miR-21) expression in serum is associated with lymph node metastasis in patients with cervical cancer and look further into the molecular mechanism of these. Whole-blood samples from 89 patients who have been histopathologically confirmed as having cervical cancer and 20 control subjects were collected, and then the association between lymph node metastasis and the level of circulating miR-21 was compared. Then cervical cancer cell lines HeLa (HPV-18 DNA, E6/E7RNA) and HT-3 (HPV DNA, E6/E7RNA) were used to confirm the interaction between miR-21 and RASA1. The role of RASA1 in cervical cancer cell migration was also studied in HeLa. Increased circulating miR-21 expression in serum is associated with lymph node metastasis in patients with cervical cancer. MicroRNA-21 reduces RASA1 expression in cervical cancer cell lines and promotes cervical cancer cell migration via RASA1. Furthermore, Ras-induced epithelial-mesenchymal transition contributes to miR-21/RASA1 axis promoting cervical cancer cell migration. Circulating miR-21 in serum could be a promising biomarker in auxiliary diagnosis of lymph node metastasis in cervical cancer, and inhibition of miR-21/RASA1 axis could be a possible strategy to restrain migration of cervical cancer.
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49
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Adhami M, Haghdoost AA, Sadeghi B, Malekpour Afshar R. Candidate miRNAs in human breast cancer biomarkers: a systematic review. Breast Cancer 2017; 25:198-205. [PMID: 29101635 DOI: 10.1007/s12282-017-0814-8] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 10/31/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Breast cancer (BC) is the most prevalent cancer and the main cause of cancer deaths among females around the world. For early diagnosis of BC, there would be an immediate and essential requirement to search for sensitive biomarkers. METHODS To identify candidate miRNA biomarkers for BC, we performed a general systematic review regarding the published miRNA profiling researches comparing miRNA expression level between BC and normal tissues. A miRNA ranking system was selected, which considered frequency of comparisons in direction and agreement of differential expression. RESULTS We determined that two miRNAs (mir-21 and miR-210) were upregulated consistently and six miRNAs (miR-145, miR-139-5p, miR-195, miR-99a, miR-497 and miR-205) were downregulated consistently in at least three studies. MiR-21 as the most consistently reported miRNA was upregulated in six profiling studies. CONCLUSIONS Although these miRNAs require being validated and further investigated, they could be potential candidates for BC miRNA biomarkers and used for early prognosis or diagnosis.
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Affiliation(s)
- Masoumeh Adhami
- Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Akbar Haghdoost
- Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Balal Sadeghi
- Food Hygiene and Public Health Department, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Reza Malekpour Afshar
- Pathology and Stem Cell Research Center, Kerman University of Medical Sciences, Kerman, Iran
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50
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Wang K, Jin W, Song Y, Fei X. LncRNA RP11-436H11.5, functioning as a competitive endogenous RNA, upregulates BCL-W expression by sponging miR-335-5p and promotes proliferation and invasion in renal cell carcinoma. Mol Cancer 2017; 16:166. [PMID: 29070041 PMCID: PMC5657097 DOI: 10.1186/s12943-017-0735-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 10/20/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Accumulating evidence indicates that long non-coding RNAs (lncRNAs) play a crucial role in tumorigenesis. Here, we report a novel lncRNA, RP11-436H11.5, that regulates renal cell carcinoma (RCC) cell proliferation and invasion by sponging miR-335-5p. METHODS Expression of lncRNA RP11-436H11.5 was determined by a qRT-PCR assay in RCC tissues. RCC cell proliferation and invasion were measured by a cell proliferation assay and a transwell invasion assay. Expression of BCL-W was detected by a western blot assay. Interactions between lncRNA RP11-436H11.5 and miR-335-5p were measured by a luciferase reporter assay and a RNA-pull down assay. In vivo experiments were used to detect tumor formation. RESULTS In this study, the qRT-PCR results illustrated that lncRNA RP11-436H11.5 was more highly expressed in RCC tissues than in adjacent normal renal tissues. The results of survival analysis indicated that patients in the high lncRNA RP11-436H11.5 group presented significantly worse outcomes compared with those in the low lncRNA RP11-436H11.5 group. Downregulation of lncRNA RP11-436H11.5 suppressed RCC cell proliferation and invasion in vitro and in vivo. Luciferase reporter assay results demonstrated that lncRNA RP11-436H11.5 enhanced BCL-W expression by regulating miR-335-5p expression. LncRNA RP11-436H11.5 could function as a miR-335-5p decoy to derepress expression of BCL-W. CONCLUSIONS LncRNA RP11-436H11.5 could function as a competing endogenous RNA to promote RCC cell proliferation and invasion, which might serve as a therapeutic application to suppress RCC progression.
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Affiliation(s)
- Kefeng Wang
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Wei Jin
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Yan Song
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Xiang Fei
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, 110004, China.
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