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Oral Submucous Fibrosis: Etiological Mechanism, Malignant Transformation, Therapeutic Approaches and Targets. Int J Mol Sci 2023; 24:ijms24054992. [PMID: 36902423 PMCID: PMC10003551 DOI: 10.3390/ijms24054992] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/28/2022] [Accepted: 02/23/2023] [Indexed: 03/08/2023] Open
Abstract
Oral submucosal fibrosis (OSF) is a chronic, progressive and potentially malignant oral disorder with a high regional incidence and malignant rate. With the development of the disease, the normal oral function and social life of patients are seriously affected. This review mainly introduces the various pathogenic factors and mechanisms of OSF, the mechanism of malignant transformation into oral squamous cell carcinoma (OSCC), and the existing treatment methods and new therapeutic targets and drugs. This paper summarizes the key molecules in the pathogenic and malignant mechanism of OSF, the miRNAs and lncRNAs with abnormal changes, and the natural compounds with therapeutic effects, which provides new molecular targets and further research directions for the prevention and treatment of OSF.
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Qi D, Geng Y, Cardenas J, Gu J, Yi SS, Huang JH, Fonkem E, Wu E. Transcriptomic analyses of patient peripheral blood with hemoglobin depletion reveal glioblastoma biomarkers. NPJ Genom Med 2023; 8:2. [PMID: 36697401 PMCID: PMC9877004 DOI: 10.1038/s41525-022-00348-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 12/21/2022] [Indexed: 01/26/2023] Open
Abstract
Peripheral blood is gaining prominence as a noninvasive alternative to tissue biopsy to develop biomarkers for glioblastoma (GBM); however, widely utilized blood-based biomarkers in clinical settings have not yet been identified due to the lack of a robust detection approach. Here, we describe the application of globin reduction in RNA sequencing of whole blood (i.e., WBGR) and perform transcriptomic analysis to identify GBM-associated transcriptomic changes. By using WBGR, we improved the detection sensitivity of informatic reads and identified differential gene expression in GBM blood. By analyzing tumor tissues, we identified transcriptomic traits of GBM blood. Further functional enrichment analyses retained the most changed genes in GBM. Subsequent validation elicited a 10-gene panel covering mRNA, long noncoding RNA, and microRNA (i.e., GBM-Dx panel) that has translational potential to aid in the early detection or clinical management of GBM. Here, we report an integrated approach, WBGR, with comprehensive analytic capacity for blood-based marker identification.
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Affiliation(s)
- Dan Qi
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA
| | - Yiqun Geng
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA
- Laboratory of Molecular Pathology, Shantou University Medical College, 515041, Shantou, China
| | - Jacob Cardenas
- Baylor Scott & White Research Institute, Dallas, TX, 75204, USA
| | - Jinghua Gu
- Baylor Scott & White Research Institute, Dallas, TX, 75204, USA
| | - S Stephen Yi
- Institute for Cellular and Molecular Biology (ICMB), College of Natural Sciences, The University of Texas at Austin, Austin, TX, 78712, USA
- Oden Institute for Computational Engineering and Sciences (ICES), The University of Texas at Austin, Austin, TX, 78712, USA
- Department of Biomedical Engineering, Cockrell School of Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
- Department of Oncology, LIVESTRONG Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Jason H Huang
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA.
- Texas A & M University School of Medicine, Temple, TX, 76508, USA.
| | - Ekokobe Fonkem
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA.
- Texas A & M University School of Medicine, Temple, TX, 76508, USA.
| | - Erxi Wu
- Department of Neurosurgery and Neuroscience Institute, Baylor Scott & White Health, Temple, TX, 76508, USA.
- Department of Oncology, LIVESTRONG Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX, 78712, USA.
- Texas A & M University School of Medicine, Temple, TX, 76508, USA.
- Texas A & M University School of Pharmacy, College Station, TX, 77843, USA.
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Tang M, Bai L, Wan Z, Wan S, Xiang Y, Qian Y, Cui L, You J, Hu X, Qu F, Zhu Y. circRNA-DURSA regulates trophoblast apoptosis via miR-760-HIST1H2BE axis in unexplained recurrent spontaneous abortion. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 26:1433-1445. [PMID: 34938599 PMCID: PMC8655312 DOI: 10.1016/j.omtn.2021.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 06/09/2021] [Indexed: 12/27/2022]
Abstract
Unexplained recurrent spontaneous abortion (URSA) is one of the most intractable clinical challenges in reproduction. As a specific type of endogenous non-coding RNA, circular RNAs (circRNAs) have great pre-clinical diagnostic and therapeutic values in diseases. Recently, thousands of circRNAs were detected in human pre-implantation embryos, indicating that circRNAs potentially have important regulatory functions. However, the roles of circRNAs in URSA remain largely unknown. In this study, we elucidated deregulated circRNA expression and distinct competing endogenous RNA (ceRNA) networks by comparing URSA placental villus with that of patients with normal pregnancy using microarrays. We characterized a distinct circRNA, circRNA-0050703, which is downregulated in URSA placental villus (thus we named it circRNA-DURSA). Silencing of circRNA-DURSA results in trophoblast cell apoptosis in vitro. Furthermore, mechanistic dissection revealed that circRNA-DURSA exerts its effects by competitively binding to miR-760, which post-transcriptionally targets HIST1H2BE. Additionally, after circRNA-DURSA silencing in vivo, the numbers of implanted embryos decreased significantly. These results reveal the regulatory roles of circRNA-DURSA in trophoblasts and identified a distinct circRNA-DURSA/miR-760/HIST1H2BE axis as potentially important diagnostic and therapeutic targets for URSA treatment.
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Affiliation(s)
- Minyue Tang
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Long Bai
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.,Key Laboratory of Reproductive Genetics (Ministry of Education) and Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Zhe Wan
- Key Laboratory of Laparoscopic Technology of Zhejiang Province, Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Shan Wan
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Yu Xiang
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Yeqing Qian
- Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Long Cui
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Jiali You
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Xiaoling Hu
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Fan Qu
- Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Yimin Zhu
- Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
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Ahn S, Grimes T, Datta S. The Analysis of Gene Expression Data Incorporating Tumor Purity Information. Front Genet 2021; 12:642759. [PMID: 34497631 PMCID: PMC8419469 DOI: 10.3389/fgene.2021.642759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 07/30/2021] [Indexed: 12/03/2022] Open
Abstract
The tumor microenvironment is composed of tumor cells, stroma cells, immune cells, blood vessels, and other associated non-cancerous cells. Gene expression measurements on tumor samples are an average over cells in the microenvironment. However, research questions often seek answers about tumor cells rather than the surrounding non-tumor tissue. Previous studies have suggested that the tumor purity (TP)-the proportion of tumor cells in a solid tumor sample-has a confounding effect on differential expression (DE) analysis of high vs. low survival groups. We investigate three ways incorporating the TP information in the two statistical methods used for analyzing gene expression data, namely, differential network (DN) analysis and DE analysis. Analysis 1 ignores the TP information completely, Analysis 2 uses a truncated sample by removing the low TP samples, and Analysis 3 uses TP as a covariate in the underlying statistical models. We use three gene expression data sets related to three different cancers from the Cancer Genome Atlas (TCGA) for our investigation. The networks from Analysis 2 have greater amount of differential connectivity in the two networks than that from Analysis 1 in all three cancer datasets. Similarly, Analysis 1 identified more differentially expressed genes than Analysis 2. Results of DN and DE analyses using Analysis 3 were mostly consistent with those of Analysis 1 across three cancers. However, Analysis 3 identified additional cancer-related genes in both DN and DE analyses. Our findings suggest that using TP as a covariate in a linear model is appropriate for DE analysis, but a more robust model is needed for DN analysis. However, because true DN or DE patterns are not known for the empirical datasets, simulated datasets can be used to study the statistical properties of these methods in future studies.
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Affiliation(s)
| | | | - Somnath Datta
- Department of Biostatistics, University of Florida, Gainesville, FL, United States
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5
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Ye G, Wang L, Yang K, Wang C. Fucoxanthin may inhibit cervical cancer cell proliferation via downregulation of HIST1H3D. J Int Med Res 2021; 48:300060520964011. [PMID: 33086884 PMCID: PMC7585902 DOI: 10.1177/0300060520964011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objective To investigate the role of fucoxanthin, reported to have significant anticancer effects, and histone Cluster 1 H3 Family Member D (HIST1H3D; implicated in tumorigenesis) in cervical cancer. Methods The half maximal inhibitory concentration (IC50) of fucoxanthin against HeLa and SiHa cervical cancer cells was determined. Differentially expressed genes (DEGs) in SiHa cells treated with IC50 fucoxanthin were screened by high-throughput techniques and subjected to signal enrichment. Following identification of HIST1H3D as a candidate gene, HIST1H3D-knockdown models were created via transfection with a short hairpin HIST1H3D payload. Impacts on cell proliferation, cell-cycle distribution, colony formation, and apoptosis were studied. Results The fucoxanthin IC50 was 1 445 and 1 641 µM (Hela and SiHa cells, respectively). Chip results revealed 2 255 DEGs, including 943 upregulated and 1 312 downregulated genes, in fucoxanthin-treated versus untreated SiHa cells. Disease and function analysis indicated that these DEGs are primarily associated with cancer and organismal injuries and abnormalities, and online integrated pathway analysis showed that the DEGs were mainly enriched in p53 signalling. HIST1H3D was significantly downregulated in response to fucoxanthin. Inhibition of HIST1H3D mRNA significantly reduced cell proliferation and colony formation, significantly augmented the percentage of apoptotic HeLa and SiHa cells, and cells were arrested in G0/G1 cell cycle phase. Conclusion The results suggest that HIST1H3D may be an oncogene in cervical carcinogenesis and a potential fucoxanthin target in treating cervical cancer.
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Affiliation(s)
- Guoliu Ye
- Department of Obstetrics and Gynaecology, the First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Lingling Wang
- Department of Obstetrics and Gynaecology, the First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Kang Yang
- Department of Obstetrics and Gynaecology, the First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Caizhi Wang
- Department of Obstetrics and Gynaecology, the First Affiliated Hospital of Bengbu Medical College, Bengbu, China
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Liu W, Li Y, Feng S, Guan Y, Cao Y. MicroRNA-760 inhibits cell viability and migration through down-regulating BST2 in gastric cancer. J Biochem 2021; 168:159-170. [PMID: 32167539 DOI: 10.1093/jb/mvaa031] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 03/05/2020] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer is one of the most common types of carcinoma with a threat to global health. MicroRNA-760 (miR-760) was significantly down-regulated in the primary tumour of patients with advanced gastric cancer. However, the role of miR-760 in gastric cancer is still unclear. Herein, miR-760 was down-regulated in gastric cancer tissues. Moreover, miR-760 overexpression and knockdown were conducted in gastric cancer cells (MGC-803 and SGC-7901) in vitro. The in vitro functional assays proved that miR-760 overexpression reduced cell viability, cell cycle, migration and invasion, promoted apoptosis and suppressed MMP activity in MGC-803 cells. Conversely, miR-760 knockdown led to the opposite in SGC-7901 cells. Notably, bone marrow stromal antigen 2 (BST2) was verified as a target gene of miR-760. MiR-760 mimics down-regulated BST2 level in gastric cancer tissues and in MGC-803 cells, whereas miR-760 inhibitor up-regulated its level in SGC-7901 cells. MiR-760-regulated cell properties through reduction of BST2. In addition, miR-760 inhibited tumourigenesis in a nude mouse xenograft model in vivo. In conclusion, our results demonstrated that miR-760 exhibited a suppressive role in gastric cancer via inhibiting BST2, indicating that miR-760/BST2 axis may provide promising therapeutic target for gastric cancer.
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Affiliation(s)
- Weiyu Liu
- Department of Gastroenterology, The People's Hospital of Liaoning Province, Shenyang 110016, People's Republic of China
| | - Yan Li
- Department of Gastroenterology, The People's Hospital of Liaoning Province, Shenyang 110016, People's Republic of China
| | - Shuting Feng
- Department of Gastroenterology, The People's Hospital of Liaoning Province, Shenyang 110016, People's Republic of China
| | - Yadi Guan
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Yong Cao
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
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circPUM1 promotes polycystic ovary syndrome progression by sponging to miR-760. Gene 2020; 754:144903. [PMID: 32540374 DOI: 10.1016/j.gene.2020.144903] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/25/2020] [Accepted: 06/10/2020] [Indexed: 12/17/2022]
Abstract
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders among reproductive-age women. The circRNA-miRNA axis functions in various diseases progression have been partially revealed in the past two decades. However, little is known about the role of the circRNA-miRNA axis in PCOS progression. MicroRNA miR-760, which is characterized by tissue-specific, has been studied in several cancers. Firstly, we found that miR-760 expression was decreased in PCOS tissues insulin treated GCs, KGN and SVOG cells. Secondly, The CCK-8 and apoptosis experiment results suggested that downregulated miR-760 promoted cell proliferation ability and suppressed apoptosis activity in KGN and SVOG cells. Then, the bioinformatic analysis result indicated that circPUM1 was a potential sponge to miR-760. By performing AGO2-RIP, RNA pull-down, Luciferase reporter, and qRT-PCR experiments, we demonstrated that circPUM1 acted as a molecular sponge to miR-760, and decreased miR-760 expression. Moreover, it was found that the promotive effect of circPUM1 was mediated by regulating miR-760. Collectively, our findings suggest that circPUM1 promotes PCOS progression through sponging to miR-760. We may provide a promising therapeutic target for PCOS.
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Manvati MKS, Khan J, Verma N, Dhar PK. Association of miR-760 with cancer: An overview. Gene 2020; 747:144648. [PMID: 32251703 DOI: 10.1016/j.gene.2020.144648] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 02/08/2023]
Abstract
MicroRNAs (miRNAs) are small non-coding RNA molecules of around 22 nucleotides in length. They are crucially involved in the post transcriptional regulation and thus play a significant role in the modulation of different diseases. Several studies have suggested that miRNA expression is dysregulated in various cancers through different mechanisms and the dysregulated miRNA in return affects different cancer hallmarks including cell proliferation, cell death suppression, metastasis and angiogenesis. Compilation of the available miRNA data can be a stimulator for proper understanding of the correlation between the miRNA expression and cancer progression. In this review, we have focussed on the role of miR-760 in the progression of different cancer. MicroRNA-760 (miR-760) has been found to be down regulated in various cancers, thus it can be utilized as a possible prognostic marker for cancer detection. Here, we have tried to fill a gap regarding the role of miR-760 in relation to cervical cancer also. Moreover, unravelling the role of miR-760 in different cancers will enlighten the researchers with proper understanding of biology of miR-760 in regulation of different cancers.
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Affiliation(s)
| | - Juveria Khan
- School of Biotechnology, Jawaharlal Nehru University, New Mehrauli Road, New Delhi 110067, India
| | - Neeraj Verma
- School of Biotechnology, Jawaharlal Nehru University, New Mehrauli Road, New Delhi 110067, India
| | - Pawan K Dhar
- School of Biotechnology, Jawaharlal Nehru University, New Mehrauli Road, New Delhi 110067, India.
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9
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Histone H2A isoforms: Potential implications in epigenome plasticity and diseases in eukaryotes. J Biosci 2020. [DOI: 10.1007/s12038-019-9985-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Ge L, Wang Y, Duan QH, Liu SS, Liu GJ. MicroRNA-760 acts as a tumor suppressor in gastric cancer development via inhibiting G-protein-coupled receptor kinase interacting protein-1 transcription. World J Gastroenterol 2019; 25:6619-6633. [PMID: 31832002 PMCID: PMC6906209 DOI: 10.3748/wjg.v25.i45.6619] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/29/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) has become a serious threat to people's health. Accumulative evidence reveals that dysregulation of numerous microRNAs (miRNAs) has been found during malignant formation. So far, the role of microRNA-760 (miR-760) in the development of GC is largely unknown.
AIM To measure the expression level of miR-760 in GC and investigate its role in gastric tumorigenesis.
METHODS Real-time quantitative polymerase chain reaction and Western blot analysis were used to measure the expression of miR-760 and G-protein-coupled receptor kinase interacting protein-1 (GIT1). Cell growth was detected by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and cell colony formation assays. Apoptosis was assessed by flow cytometric analysis. The relationship between miR-760 and GIT1 was verified by luciferase reporter assay.
RESULTS The results showed that the expression of miR-760 was decreased in GC and associated with poor clinical outcomes in GC patients. Furthermore, miR-760 restrained cell proliferation and cell colony formation and induced apoptosis in GC cells. In addition, miR-760 directly targeted GIT1 and negatively regulated its expression in GC. GIT1 was upregulated in GC and predicted a worse prognosis in GC patients. We also found that upregulation of GIT1 weakened the inhibitory effect of miR-760 in GC.
CONCLUSION In conclusion, miR-760 targets GIT1 to inhibit cell growth and promote apoptosis in GC cells. Our data demonstrate that miR-760 may be a potential target for the treatment of GC.
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Affiliation(s)
- Liang Ge
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
| | - Yu Wang
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
| | - Quan-Hong Duan
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
| | - Song-Shan Liu
- Department of Surgery, Weifang Medical College, Weifang 261031, Shandong Province, China
| | - Guo-Jing Liu
- Department of Anal and Intestinal Surgery, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
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Yang X, Zhang C, Tie H, Luo J, Wang Y, Wu Q. miR-760 exerts an antioncogenic effect in esophageal squamous cell carcinoma by negatively driving fat metabolism via targeting c-Myc. J Cell Biochem 2019; 121:2950-2961. [PMID: 31709636 DOI: 10.1002/jcb.29540] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 10/10/2019] [Indexed: 12/24/2022]
Abstract
miR-760 is downregulated in various human tumors, and fat metabolism disorder correlates with tumor progression, especially anomalism of key fat metabolic enzymes that are positively modulated by c-Myc. The aim of our study is to elucidate the presumptive molecular mechanisms of miR-760-mediated esophageal squamous cell carcinoma (ESCC) cell function and to assess the therapeutic significance of miR-760 in ESCC patients. Quantitative real-time PCR (RT-qPCR) analysis indicated that miR-760 was significantly downexpressed in ESCC tissues and cell lines. Cell counting kit-8 (CCK-8) assay, colony formation assay, transwell assay, and flow cytometry denoted that induced ectopic overexpression of miR-760 dramatically inhibited ESCC cells proliferation, attenuated migration, and invasion facilitated apoptosis in vitro. Mechanistically, c-Myc predicted using bioinformatics was identified as a potential target gene of miR-760 by luciferase reporter assay. Furthermore, mRNA and protein expression levels of c-Myc and key fat metabolic enzymes were downregulated with miR-760 mimics. The above investigation results, responsible for the antineoplastic properties of miR-760 in ESCC, preliminarily highlighted that the hypothetical signal amongst miR-760, c-Myc, and key fat metabolic enzymes may develop a novel diagnostic marker, therapeutic target, and independent prognostic indicator.
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Affiliation(s)
- Xuetao Yang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Cheng Zhang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongtao Tie
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Luo
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yiyang Wang
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qingchen Wu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Singh R, Bassett E, Chakravarti A, Parthun MR. Replication-dependent histone isoforms: a new source of complexity in chromatin structure and function. Nucleic Acids Res 2019; 46:8665-8678. [PMID: 30165676 PMCID: PMC6158624 DOI: 10.1093/nar/gky768] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/24/2018] [Indexed: 12/11/2022] Open
Abstract
Replication-dependent histones are expressed in a cell cycle regulated manner and supply the histones necessary to support DNA replication. In mammals, the replication-dependent histones are encoded by a family of genes that are located in several clusters. In humans, these include 16 genes for histone H2A, 22 genes for histone H2B, 14 genes for histone H3, 14 genes for histone H4 and 6 genes for histone H1. While the proteins encoded by these genes are highly similar, they are not identical. For many years, these genes were thought to encode functionally equivalent histone proteins. However, several lines of evidence have emerged that suggest that the replication-dependent histone genes can have specific functions and may constitute a novel layer of chromatin regulation. This Survey and Summary reviews the literature on replication-dependent histone isoforms and discusses potential mechanisms by which the small variations in primary sequence between the isoforms can alter chromatin function. In addition, we summarize the wealth of data implicating altered regulation of histone isoform expression in cancer.
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Affiliation(s)
- Rajbir Singh
- Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, USA
| | - Emily Bassett
- Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, USA
| | - Arnab Chakravarti
- Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, USA
| | - Mark R Parthun
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH 43210, USA
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13
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Xian D, Zhao Y. LncRNA KCNQ1OT1 enhanced the methotrexate resistance of colorectal cancer cells by regulating miR-760/PPP1R1B via the cAMP signalling pathway. J Cell Mol Med 2019; 23:3808-3823. [PMID: 30997746 PMCID: PMC6533496 DOI: 10.1111/jcmm.14071] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 11/08/2018] [Accepted: 11/11/2018] [Indexed: 12/18/2022] Open
Abstract
We aimed to explore the mechanism of the KCNQ1OT1/miR‐760/PPP1R1B axis acting to regulate methotrexate (MTX) resistance of colorectal cancer (CRC). Differentially expressed mRNAs and lncRNAs in MTX‐sensitive CRC cell lines and MTX‐resistant cell lines were determined through microarray analysis. Application of bioinformatics analysis was aimed to uncover the relationships among the lncRNAs/miRNAs/mRNAs, and to demonstrate the effects of cAMP signalling pathway in MTX‐resistant CRC. The expression level of RNA and proteins was, respectively, detected using qRT‐PCR and Western blot assays, whereas the dual‐luciferase reporter gene assay was implemented to verify the targeted relationship. The influence of the lncRNA/miRNA/mRNA axis on biological functions of MTX‐resistant cells and on the growth of tumours determined through both vitro and vivo experiments. LncRNA KCNQ1OT1 and PPP1R1B mRNA were overexpressed in MTX‐resistant CRC tumour cells. KCNQ1OT1 functioned as a sponge of miR‐760, which targeted PPP1R1B. Knockdown of KCNQ1OT1 enhanced chemosensitivity towards MTX through the sponging of miR‐760. MiR‐760 expressed at low levels targeted PPP1R1B in the activated cAMP signalling pathway under MTX treatment. Knockdown of KCNQ1OT1 dampened the proliferation of MTX‐resistant (HT29/MTX) cells by regulating the miR‐760/PPP1R1B axis, which also induced cell cycle arrest together with apoptosis. KCNQ1OT1 regulated the expression of PPP1R1B and the downstream genes CREB and CBP in the cAMP signalling pathway. MTX showed a suppressive function on CRC progression. KCNQ1OT1 enhanced the MTX resistance of CRC cells by regulating miR‐760‐mediated PPP1R1B expression via the cAMP signalling pathway.
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Affiliation(s)
- Di Xian
- Department of Emergency Surgery, Sichuan Academy of Medical Sciences & Sichaun Provincial People's Hospital, Chengdu, Sichuan, China
| | - Yu Zhao
- Department of Emergency Surgery, Sichuan Academy of Medical Sciences & Sichaun Provincial People's Hospital, Chengdu, Sichuan, China
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14
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Sun D, Lu J, Hu C, Zhang Q, Wang X, Zhang Z, Hu S. Prognostic role of miR-760 in hepatocellular carcinoma. Oncol Lett 2018; 16:7239-7244. [PMID: 30546462 PMCID: PMC6256363 DOI: 10.3892/ol.2018.9546] [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: 03/07/2018] [Accepted: 09/26/2018] [Indexed: 02/07/2023] Open
Abstract
Previous studies have demonstrated that microRNA (miR)-760 serves an important role in various cancer types. However, to the best of our knowledge, its role in hepatocellular carcinoma (HCC) has not been fully elucidated. The current study investigated the prognostic role of miR-760 in HCC by using the Kaplan-Meier plotter database. The current data indicated that low expression of miR-760 was associated with higher overall survival (OS) for all patients with HCC from both the RNA-seq [hazard ratio (HR)=2.04; 95% confidence interval (CI)=1.44–2.89; P=4.9×10−5] and the non-commercial spotted microarray (HR=1.71; CI=1.05–2.76; P=0.028). In the RNA-seq platform, a lower expression of miR-760 was strongly associated with improved OS in male patients with HCC, but not in female patients with HCC. Additionally, low expression of miR-760 was associated with improved OS in patients with stage I, II and III HCC, and was associated with improved OS in Asian and Caucasian patients. The current results indicated that miR-760 serves as an oncogene for HCC and high expression of miR-760 is significantly associated with tumor progression and poor prognosis in patients with HCC.
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Affiliation(s)
- Dong Sun
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China.,School of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jinghui Lu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Chunxiao Hu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Qiangbo Zhang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xiangdong Wang
- School of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Zongli Zhang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Sanyuan Hu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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15
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Ito S, Fukagawa T, Noda M, Hu Q, Nambara S, Shimizu D, Kuroda Y, Eguchi H, Masuda T, Sato T, Katai H, Sasako M, Mimori K. Prognostic Impact of Immune-Related Gene Expression in Preoperative Peripheral Blood from Gastric Cancer Patients. Ann Surg Oncol 2018; 25:3755-3763. [PMID: 30203407 DOI: 10.1245/s10434-018-6739-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Anti-PD-1 therapy has shown a promising clinical outcome in gastric cancer (GC). We evaluated the clinical significance of systemic immune-related gene expression in GC patients who underwent surgery. METHODS The correlation between the preoperative PD-1, PD-L1, and CD8 mRNA levels in peripheral blood (PB) and clinicopathological factors, including survival, in 372 GC patients was evaluated using quantitative RT-PCR. PD-1- and PD-L1-expressing cells were identified by flow cytometric analysis. RESULTS The PD-1, PD-L1, and CD8 mRNA levels in GC patients were significantly higher than those in normal controls, respectively (all P < 0.0001). The levels of each gene were positively correlated with those of the other two genes (all P < 0.0001). GC patients with low PD-1, high PD-L1, and low CD8 mRNA levels had significantly poorer overall survival (OS) than those with high PD-1, low PD-L1, and high CD8 mRNA levels, respectively (P < 0.01, P < 0.05, and P < 0.05, respectively). Multivariate analysis showed that low PD-1 and high PD-L1 mRNA levels were independent poor prognostic factors for OS (PD-1: HR 2.38, 95% CI 1.27-4.78, P < 0.01; PD-L1: HR 1.81, 95% CI 1.15-2.78, P < 0.05). PD-1 and PD-L1 expression occurred on T cells (> 90%) and T cells or monocytes (> 70%), respectively. CONCLUSIONS The PD-1, PD-L1, and CD8 mRNA levels in preoperative PB reflected the anti-tumour immune response, and the low PD-1 and high PD-L1 mRNA levels in PB were independent poor prognostic markers in GC patients who underwent surgery.
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Affiliation(s)
- Shuhei Ito
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan.,Department of Surgery, National Fukuoka-Higashi Medical Center, Koga, Fukuoka, Japan
| | - Takeo Fukagawa
- Department of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan.,Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan
| | - Miwa Noda
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Qingjiang Hu
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Sho Nambara
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Dai Shimizu
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Yosuke Kuroda
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Hidetoshi Eguchi
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Takaaki Masuda
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan
| | - Tetsuya Sato
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Hitoshi Katai
- Department of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Mitsuru Sasako
- Department of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan.,Department of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Koshi Mimori
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Japan.
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16
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Tian T, Fu X, Lu J, Ruan Z, Nan K, Yao Y, Yang Y. MicroRNA-760 Inhibits Doxorubicin Resistance in Hepatocellular Carcinoma through Regulating Notch1/Hes1-PTEN/Akt Signaling Pathway. J Biochem Mol Toxicol 2018; 32:e22167. [PMID: 29968951 DOI: 10.1002/jbt.22167] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 06/13/2018] [Accepted: 06/15/2018] [Indexed: 12/11/2022]
Abstract
Accumulating studies have suggested that microRNA-760 (miR-760) plays an important role in chemoresistance of various cancer cells. However, whether miR-760 regulates the chemoresistance of hepatocellular carcinoma (HCC) remains unclear. In this study, we found that miR-760 was decreased in HCC cell lines, and doxorubicin (Dox) treatment significantly decreased miR-760 expression in HCC cells. Overexpression of miR-760 sensitized HCC cells to Dox-induced cytotoxicity and apoptosis, whereas miR-760 inhibition showed the opposite effects. Notch1 was predicted as a target gene of miR-760. miR-760 negatively regulated Notch1 expression and Notch1/Hes1 signaling. Overexpression of miR-760 increased PTEN expression and decreased the phosphorylation of Akt. Activation of Notch signaling significantly reversed the inhibitory effect of miR-760 on Dox-resistance and abrogated the effect of miR-760 on the PTEN/Akt signaling pathway in HCC cells. Overall, our results demonstrate that miR-760 inhibits Dox-resistance in HCC cells through inhibiting Notch1 and promoting PTEN expression.
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Affiliation(s)
- Tao Tian
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, P.R. China
| | - Xiao Fu
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, P.R. China
| | - Jun Lu
- Clinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, P.R. China
| | - Zhiping Ruan
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, P.R. China
| | - Kejun Nan
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, P.R. China
| | - Yu Yao
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, P.R. China
| | - Yujuan Yang
- The Third Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi Province, P.R. China
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17
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Yan C, Zhang W, Shi X, Zheng J, Jin X, Huo J. MiR-760 suppresses non-small cell lung cancer proliferation and metastasis by targeting ROS1. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:18385-18391. [PMID: 29372517 DOI: 10.1007/s11356-017-1138-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
MicroRNAs (miRNAs) have been shown to be critical regulators in many types of tumors. The aim of our study was to investigate the role of miR-760 in non-small cell lung cancer (NSCLC). We demonstrated that the expression of miR-760 was downregulated in NSCLC tissues compared with the adjacent normal tissues. We also demonstrated that the expression of miR-760 was downregulated in the NSCLC cell lines. Overexpression of miR-760 suppressed the NSCLC cell proliferation, cell cycle, and migration. Moreover, we identified that ROS1 was a direct target of miR-760 in the NSCLC cell. Elevated expression of miR-760 suppressed ROS1 expression in the NSCLC cell. We also demonstrated that the expression of ROS1 was higher in the NSCLC tissues than in the adjacent lung tissues. MiR-760 expression level was reversely associated with the expression level of ROS1 in the NSCLC tissues. In summary, we showed that miR-760 suppressed the NSCLC cell proliferation, cell cycle, and migration through regulating the ROS1 expression. These data suggested that miR-760 may act as a tumor suppressor gene in the NSCLC partly through regulating ROS1 expression.
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Affiliation(s)
- Chunhua Yan
- Department of Respiratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China
| | - Wei Zhang
- Department of Respiratory, The first Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China
| | - Xiaodong Shi
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China
| | - Jiaolin Zheng
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China
| | - Xiaoming Jin
- Department of Pathology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China.
| | - Jianmin Huo
- Department of Respiratory, The first Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.
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18
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Zhang X, Wang L, Liu Y, Huang W, Cheng D. MiR-760 enhances TRAIL sensitivity in non-small cell lung cancer via targeting the protein FOXA1. Biomed Pharmacother 2018; 99:523-529. [PMID: 29665655 DOI: 10.1016/j.biopha.2018.01.076] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/29/2017] [Accepted: 01/12/2018] [Indexed: 02/07/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is one of the leading cause of death worldwide. TNF-related apoptosis-inducing ligand (TRAIL) is a promising anti-tumor agent with the ability to kill tumor cells while spare normal ones. MicroRNAs (miRNAs) are small, non-coding RNAs that play vital roles in carcinogenesis. Although miR-760 has been reported to be dysregulated in a variety of cancers, the role of miR-760 in NSCLC is not fully understood, and the relationship between miR-760 dysregulation and TRAIL sensitivity is still elusive. In the current study, we found that miR-760 is significantly downregulated in NSCLC tissues and cell lines. We also found that ectopic expression of miR-760, by targeting the FOXA1, enhanced TRAIL sensitivity in NSCLC cells. Correspondingly, silencing of FOXA1 also sensitized NSCLC cell to TRAIL-induced apoptosis and proliferation inhibition. In summary, these findings suggest that miR-760 should be considered as a tumor suppressor since it negatively regulates the oncogene protein FOXA1 and regulated TRAIL sensitivity in NSCLC cells.
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Affiliation(s)
- Xiang Zhang
- Department of Thoracic, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Lei Wang
- Department of Thoracic, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Yu Liu
- Department of Thoracic, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Weicong Huang
- Department of Thoracic, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Dezhi Cheng
- Department of Thoracic, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China.
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19
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Common Expression Quantitative Trait Loci Shared by Histone Genes. Int J Genomics 2017; 2017:6202567. [PMID: 28929106 PMCID: PMC5591967 DOI: 10.1155/2017/6202567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/26/2017] [Accepted: 08/02/2017] [Indexed: 11/17/2022] Open
Abstract
A genome-wide association study (GWAS) was conducted to examine expression quantitative trait loci (eQTLs) for histone genes. We examined common eQTLs for multiple histone genes in 373 European lymphoblastoid cell lines (LCLs). A linear regression model was employed to identify single-nucleotide polymorphisms (SNPs) associated with expression of the histone genes, and the number of eQTLs was determined by linkage disequilibrium analysis. Additional associations of the identified eQTLs with other genes were also examined. We identified 31 eQTLs for 29 histone genes through genome-wide analysis using 29 histone genes (P < 2.97 × 10−10). Among them, 12 eQTLs were associated with the expression of multiple histone genes. Transcriptome-wide association analysis using the identified eQTLs showed their associations with additional 80 genes (P < 4.75 × 10−6). In particular, expression of RPPH1, SCARNA2, and SCARNA7 genes was associated with 26, 25, and 23 eQTLs, respectively. This study suggests that histone genes shared 12 common eQTLs that might regulate cell cycle-dependent transcription of histone and other genes. Further investigations are needed to elucidate the transcriptional mechanisms of these genes.
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20
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Zheng Q, Chen C, Guan H, Kang W, Yu C. Prognostic role of microRNAs in human gastrointestinal cancer: A systematic review and meta-analysis. Oncotarget 2017; 8:46611-46623. [PMID: 28402940 PMCID: PMC5542297 DOI: 10.18632/oncotarget.16679] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 03/09/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Gastrointestinal cancers (GICs) mainly including esophageal, gastric and colorectal cancer, are the most common cause of cancer-related death and lead into high mortality worldwide. We performed this systematic review and meta-analysis to elucidate relationship between multiple microRNAs (miRs) expression and survival of GIC patients. METHODS We searched a wide range of database. Fixed-effects and random-effects models were used to calculate the pooled hazard ratio values of overall survival and disease free survival. In addition, funnel plots were used to qualitatively analyze the publication bias and verified by Begg's test while it seems asymmetry. RESULTS 60 studies involving a total of 6225 patients (1271 with esophageal cancer, 3467 with gastric cancer and 1517 with colorectal cancer) were included in our meta-analysis. The pooled hazard ratio values of overall survival related to different miRs expression in esophageal, gastric, colorectal and gastrointestinal cancer were 2.10 (1.78-2.49), 2.02 (1.83-2.23), 2.54 (2.14-3.02) and 2.15 (1.99-2.31), respectively. We have identified a total of 59 miRs including 23 significantly up-regulated expression miRs (miR-214, miR-17, miR-20a, miR-200c, miR-107, miR-27a, etc.) and 36 significantly down-regulated expression miRs (miR-433, let-7g, miR-125a-5p, miR-760, miR-206, miR-26a, miR-200b, miR-185, etc.) correlated with poor prognosis in GIC patients. Moreover, 35 of them revealed mechanisms. CONCLUSION Overall, specific miRs are significantly associated with the prognosis of GIC patients and potentially eligible for the prediction of patients survival. It also provides a potential value for clinical decision-making development and may serve as a promising miR-based target therapy waiting for further elucidation.
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Affiliation(s)
- Qiang Zheng
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Changyu Chen
- Department of General Surgery, First Affiliated Hospital of Anhui Traditional Medical University, Hefei, China
| | - Haiyang Guan
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Weibiao Kang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Changjun Yu
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
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21
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Sonohara F, Inokawa Y, Hayashi M, Kodera Y, Nomoto S. Epigenetic modulation associated with carcinogenesis and prognosis of human gastric cancer. Oncol Lett 2017; 13:3363-3368. [PMID: 28529571 DOI: 10.3892/ol.2017.5912] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 02/14/2017] [Indexed: 12/17/2022] Open
Abstract
Gastric cancer (GC) is a leading cause of cancer-related death, particularly in Asia. Epidemiological and other clinical studies have identified an association between a number of risk factors, including Helicobacter pylori, and GC. A number of studies have also examined genetic changes associated with the development and progression of GC. When considering the clinical significance of the expression of a specific gene, its epigenetic modulation should be considered. Epigenetic modulation appears to be a primary driver of changes in gastric tissue that promotes carcinogenesis and progression of GC and other neoplasms. The role of epigenetic modulation in GC carcinogenesis and progression has been widely studied in recent years. In the present review, recent results of epigenetic modulation associated with GC and their effects on clinical outcome are examined, with particular respect to DNA methylation, histone modulation and non-coding RNA. A number of studies indicate that epigenetic changes in the expression of specific genes critically affect their clinical significance and further study may reveal epigenetic changes as the basis for targeted molecular therapy or novel biomarkers that predict GC prognosis or extension of this often fatal disease.
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Affiliation(s)
- Fuminori Sonohara
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan.,Department of Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Aichi 464-8651, Japan
| | - Yoshikuni Inokawa
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan.,Department of Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Aichi 464-8651, Japan
| | - Masamichi Hayashi
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Shuji Nomoto
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan.,Department of Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Aichi 464-8651, Japan
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22
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Identification of Significant Pathways Induced by PAX5 Haploinsufficiency Based on Protein-Protein Interaction Networks and Cluster Analysis in Raji Cell Line. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5326370. [PMID: 28316978 PMCID: PMC5339483 DOI: 10.1155/2017/5326370] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 01/23/2017] [Accepted: 01/30/2017] [Indexed: 12/02/2022]
Abstract
PAX5 encodes a transcription factor essential for B-cell differentiation, and PAX5 haploinsufficiency is involved in tumorigenesis. There were few studies on how PAX5 haploinsufficiency regulated genes expression to promote tumorigenesis. In this study, we constructed the cell model of PAX5 haploinsufficiency using gene editing technology in Raji cells, detected differentially expressed genes in PAX5 haploinsufficiency Raji cells, and used protein-protein interaction networks and cluster analysis to comprehensively investigate the cellular pathways involved in PAX5 haploinsufficiency. The clusters of gene transcription, inflammatory and immune response, and cancer pathways were identified as three important pathways associated with PAX5 haploinsufficiency in Raji cells. These changes hinted that the mechanism of PAX5 haploinsufficiency promoting tumorigenesis may be related to genomic instability, immune tolerance, and tumor pathways.
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23
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Rui Y, Peng WJ, Wang M, Wang Q, Liu ZL, Chen YQ, Huang LN. HIST1H3D: A promising therapeutic target for lung cancer. Int J Oncol 2017; 50:815-822. [PMID: 28112369 DOI: 10.3892/ijo.2017.3856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 12/01/2016] [Indexed: 11/05/2022] Open
Abstract
HIST1H3D gene encodes histone H3.1 and is involved in gene-silencing and heterochromatin formation. HIST1H3D expression is upregulated in primary gastric cancer tissue. In this study, we explored the effects of HIST1H3D expression on lung cancer, and its mechanisms. HIST1H3D expression was measured by immunohistochemistry and RT-PCR in lung cancer tissues and human lung cancer cell lines. Cell proliferation was assessed by MTT assay. Flow cytometric analysis was used to determine cell cycle distribution and apoptosis. Levels of related proteins were detected by western blotting. Bioinformatics analysis was performed to investigate related signaling pathways. cDNA microarray analysis was performed to identify differentially expressed genes following HIST1H3D knockdown. HIST1H3D expression was upregulated in lung cancer tissue samples and the H1299 human lung cancer cell line (P<0.01). Regulation of HIST1H3D expression in nucleus of cells in lung cancer tissues was significant associated with tumor stage (P=0.02) and lymph node metastases (P=0.04). Downregulation of HIST1H3D expression led to suppression of proliferation and colony forming ability, cell cycle arrest at the G0/G1 phase, and promotion of cell apoptosis. The microarray data revealed 522 genes that were differentially expressed after HIST1H3D knockdown in H1299 cells. These genes were shown to be linked to numerous pathways, including the cell cycle, p53 signaling, and MCM. Western blot analysis confirmed upregulated expression of the THBS1 and TP53I3 genes, and downregulated expression of the CDK6, CDKN1 and CCNE2 genes. In conclusion, our results suggest that HIST1H3D is highly expressed in lung cancer cell lines and tissues. Furthermore, HIST1H3D may be important in cell proliferation, apoptosis and cell cycle progression, and is implicated as a potential therapeutic target for lung cancer.
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Affiliation(s)
- Yan Rui
- Department of Respiration and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Lung Cancer Diagnosis and Treatment Center of Anhui Province, Anhui Provincial Key Laboratory of Clinical Basic Research on Respiratory Disease, Bengbu, Anhui 233004, P.R. China
| | - Wen-Jia Peng
- Department of Epidemiology and Health Statistics, Bengbu Medical College, Bengbu, Anhui 233000, P.R. China
| | - Ming Wang
- Department of Respiration and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Lung Cancer Diagnosis and Treatment Center of Anhui Province, Anhui Provincial Key Laboratory of Clinical Basic Research on Respiratory Disease, Bengbu, Anhui 233004, P.R. China
| | - Qian Wang
- Department of Respiration and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Lung Cancer Diagnosis and Treatment Center of Anhui Province, Anhui Provincial Key Laboratory of Clinical Basic Research on Respiratory Disease, Bengbu, Anhui 233004, P.R. China
| | - Zi-Li Liu
- Department of Respiration and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Lung Cancer Diagnosis and Treatment Center of Anhui Province, Anhui Provincial Key Laboratory of Clinical Basic Research on Respiratory Disease, Bengbu, Anhui 233004, P.R. China
| | - Yu-Qing Chen
- Department of Respiration and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Lung Cancer Diagnosis and Treatment Center of Anhui Province, Anhui Provincial Key Laboratory of Clinical Basic Research on Respiratory Disease, Bengbu, Anhui 233004, P.R. China
| | - Li-Nian Huang
- Department of Respiration and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Lung Cancer Diagnosis and Treatment Center of Anhui Province, Anhui Provincial Key Laboratory of Clinical Basic Research on Respiratory Disease, Bengbu, Anhui 233004, P.R. China
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24
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Iwaya T, Sawada G, Amano S, Kume K, Ito C, Endo F, Konosu M, Shioi Y, Akiyama Y, Takahara T, Otsuka K, Nitta H, Koeda K, Mizuno M, Nishizuka S, Sasaki A, Mimori K. Downregulation of ST6GALNAC1 is associated with esophageal squamous cell carcinoma development. Int J Oncol 2016; 50:441-447. [PMID: 28035351 DOI: 10.3892/ijo.2016.3817] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/16/2016] [Indexed: 11/06/2022] Open
Abstract
Tylosis is an inherited disorder characterized by abnormal palmoplantar skin thickening and a highly elevated risk of esophageal squamous cell carcinoma (ESCC). Analyses of tylosis in families have localized the responsible gene locus to a region of chromosome 17q25.1. Frequent loss of heterozygosity (LOH) in 17q25.1 was also observed in the sporadic form of ESCC. A putative tumor suppressor gene for ESCC may exist at this locus. We investigated the expression patterns of genes on 17q25.1 in tumor and corresponding normal tissues from patients with sporadic ESCC using RNA sequence analysis. For candidate genes, quantitative real-time reverse transcription-PCR (qRT-PCR), direct sequence, LOH and methylation analyses were performed using 93 clinical ESCC samples and 10 cell lines. A significant downregulation of ST6GALNAC1 was demonstrated in ESCC tissues compared to its expression in normal tissues by qRT-PCR (n=93, p<0.0001). Frequent LOH (17/27, 62.9%) and hyper‑methylation in ST6GALNAC1 were also observed in all cell lines. Our results indicated that ST6GALNAC1 was downregulated in sporadic ESCC via hyper-methylation and LOH, and it may be a candidate responsible gene for ESCC. Furthermore, recent studies suggest that multiple genes on chromosome 17q25 are involved in ESCC development.
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Affiliation(s)
- Takeshi Iwaya
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Genta Sawada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka, University, Suita 565-0871, Japan
| | - Suburu Amano
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Kohei Kume
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Chie Ito
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Fumitaka Endo
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Masafumi Konosu
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Yoshihiro Shioi
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Yuji Akiyama
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Takeshi Takahara
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Koki Otsuka
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Hiroyuki Nitta
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Keisuke Koeda
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Masaru Mizuno
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Satoshi Nishizuka
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Akira Sasaki
- Department of Surgery, Iwate Medical University, Morioka, Iwate 020-8505, Japan
| | - Koshi Mimori
- Department of Surgery, Kyushu University Beppu Hospital, Beppu 874-0838, Japan
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MiR-760 overexpression promotes proliferation in ovarian cancer by downregulation of PHLPP2 expression. Gynecol Oncol 2016; 143:655-663. [PMID: 27726922 DOI: 10.1016/j.ygyno.2016.09.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 08/30/2016] [Accepted: 09/06/2016] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Ovarian cancer is one of the most lethal gynecologic malignancies worldwide and with poor prognosis and survival rate in women. Identifying sensitive and specific molecular in carcinogenesis may improve diagnostic and therapeutic strategies for this malignancy and achieve a better clinical outcome. METHODS miR-760 expression in ovarian cancer cell lines and patient tissues were determined using Real-time PCR. 145 human ovarian cancer tissue samples were analyzed by RT-PCR to investigate the association between miR-760expression and the clinicopathological characteristics of ovarian cancer patients. Functional assays, such as MTT, anchorage-independent growth, colony formation and BRDU assay were used to determine the oncogenic role of miR-760 in human ovarian cancer progression. Furthermore, western blotting and luciferase assay were used to determine the mechanism of miR-760 promotes proliferation in ovarian cancer cells. RESULT The expression of miR-760 was markedly upregulated in ovarian cancer cell lines and tissues, and high miR-760 expression was associated with an aggressive phenotype and poor prognosis with ovarian cancer patients. Upregulation of miR-760 promoted, whereas downregulation of miR-760 inhibited the proliferation of ovarian cancer cells in vitro. Additionally, we identified PHLPP2 as a direct target of miR-760, and silencing the expression of PHLPP2 is the essential biological function of miR-760 during ovarian cancer cell proliferation. Finally, we showed a significant correlation between miR-760 and PHLPP2 expression in ovarian cancer tissues. CONCLUSION Our findings suggest that miR-760 represents a potential onco-miR and participates in ovarian cancer carcinogenesis, which highlight its potential as a target for ovarian cancer therapy.
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Chickooree D, Zhu K, Ram V, Wu HJ, He ZJ, Zhang S. A preliminary microarray assay of the miRNA expression signatures in buccal mucosa of oral submucous fibrosis patients. J Oral Pathol Med 2016; 45:691-697. [PMID: 26991343 DOI: 10.1111/jop.12431] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2016] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The objectives of this study are threefold: First is to perform a preliminary microarray analysis of miRNA expression profile to filter out differentially expressed miRNA in oral submucous fibrosis, second is to perform a bioinformatics analysis to identify miRNA-specific predicted genes, and third to retrieve those miRNAs from literature and account for the findings of our investigations. METHODS Buccal mucosa samples from three clinically evident OSF patients and three normal volunteers were collected. Agilent Human miRNA microarray experiments were carried out to analyze the miRNA expression profile in both OSF and normal tissues. To identify molecular pathways potentially altered by expression of miRNAs, DAVID software was used. This application performs an enrichment analysis of multiple miRNA target genes comparing each set of miRNA targets to known KEGG pathway. RESULTS A total of 11 unique miRNAs were differentially expressed. The overexpressed miRNAs were hsa-miR-455-3p, hsa-miR-455-5p, and hsa-miR-623, and underexpressed miRNAs were hsa-miR-1290, hsa-miR-3180-3p, hsa-miR-4792, hsa-miR-509-3-5p, hsa-miR-5189, hsa-miR-610, hsa-miR-760, and hsa-miR-921. Six miRNAs namely miR-455, miR-760, miR-623, miR-610 and miR-509-3-5p were selected. CONCLUSION This study shows that miRNA chip can be used for high-throughput screening of miRNA. Target prediction and annotation of the miRNAs demonstrated that the binding, metabolic process, molecular, and cellular process are the most common functions of the predicted targets of these newly identified miRNAs.
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Affiliation(s)
- Daminee Chickooree
- Department of Oral and Maxillofacial surgery, The second Xiangya hospital of Central South University, Changsha, Hunan, China
| | - Keke Zhu
- Department of Oral and Maxillofacial surgery, The second Xiangya hospital of Central South University, Changsha, Hunan, China
| | - Vahsish Ram
- Department of Conservative and Endodontics, The first Xiangya hospital of Central South University, Changsha, Hunan, China
| | - Han Jiang Wu
- Department of Oral and Maxillofacial surgery, The second Xiangya hospital of Central South University, Changsha, Hunan, China
| | - Zhi Jing He
- Department of Oral and Maxillofacial surgery, The second Xiangya hospital of Central South University, Changsha, Hunan, China
| | - Sheng Zhang
- Department of Oral and Maxillofacial surgery, The second Xiangya hospital of Central South University, Changsha, Hunan, China.
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Yang Q, Zhang RW, Sui PC, He HT, Ding L. Dysregulation of non-coding RNAs in gastric cancer. World J Gastroenterol 2015; 21:10956-10981. [PMID: 26494954 PMCID: PMC4607897 DOI: 10.3748/wjg.v21.i39.10956] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 08/28/2015] [Accepted: 09/15/2015] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) is one of the most common cancers in the world and a significant threat to the health of patients, especially those from China and Japan. The prognosis for patients with late stage GC receiving the standard of care treatment, including surgery, chemotherapy and radiotherapy, remains poor. Developing novel treatment strategies, identifying new molecules for targeted therapy, and devising screening techniques to detect this cancer in its early stages are needed for GC patients. The discovery of non-coding RNAs (ncRNAs), primarily microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), helped to elucidate the mechanisms of tumorigenesis, diagnosis and treatment of GC. Recently, significant research has been conducted on non-coding RNAs and how the regulatory dysfunction of these RNAs impacts the tumorigenesis of GC. In this study, we review papers published in the last five years concerning the dysregulation of non-coding RNAs, especially miRNAs and lncRNAs, in GC. We summarize instances of aberrant expression of the ncRNAs in GC and their effect on survival-related events, including cell cycle regulation, AKT signaling, apoptosis and drug resistance. Additionally, we evaluate how ncRNA dysregulation affects the metastatic process, including the epithelial-mesenchymal transition, stem cells, transcription factor activity, and oncogene and tumor suppressor expression. Lastly, we determine how ncRNAs affect angiogenesis in the microenvironment of GC. We further discuss the use of ncRNAs as potential biomarkers for use in clinical screening, early diagnosis and prognosis of GC. At present, no ideal ncRNAs have been identified as targets for the treatment of GC.
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Wei S, Wang Y, Xu H, Kuang Y. Screening of potential biomarkers for chemoresistant ovarian carcinoma with miRNA expression profiling data by bioinformatics approach. Oncol Lett 2015; 10:2427-2431. [PMID: 26622864 DOI: 10.3892/ol.2015.3610] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 06/22/2015] [Indexed: 12/27/2022] Open
Abstract
The aim of the present study was to screen out the biomarkers associated with chemoresistance in ovarian carcinomas and to investigate the molecular mechanisms. microRNA (miRNA) expression data was obtained from published microarray data of the GSE43867 dataset from Gene Expression Omnibus (GEO), including the data of 86 chemotherapy-treated patients with serous epithelial ovarian carcinomas (response group, 36 complete response cases and 12 partial response cases; non-response group, 10 stable cases and 28 progressive disease cases), and identification of differentially-expressed miRNAs were conducted with a GEO2R online tool based on R language. TargetScan 6.2 was used to predict the targets of differentially-expressed miRNAs. Protein-protein interaction network analysis was conducted by STRING 9.1, while functional enrichment [Gene Ontology (GO) biological process terms] and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted by GeneCodis3 for the target genes. A total of 6 differentially-expressed miRNAs were screened out, with 317 target genes obtained. It was found that 67 interactions existed among 76 genes/proteins through the PPI network analysis, and that 6 of these were potential key genes (PIK3R5, MAPK3, PTEN, S1PR3, BDKRB2 and NCBP2). The main biological processes involved in chemoresistant ovarian carcinoma were apoptosis, programmed cell death, cell migration, cell death and cell motility. The miRNA target genes were found to be associated with the ErbB signaling pathway, the gonadotropin-releasing hormone signaling pathway and other pathways in cancer. IK3R5, MAPK3 and PIK3R5 are involved in the majority of GO terms and KEGG pathways associated with chemoresistance in ovarian carcinoma.
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Affiliation(s)
- Shiyang Wei
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yafeng Wang
- Department of Anesthesiology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, P.R. China
| | - Hong Xu
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Yan Kuang
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
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Fan H, Guo Z, Wang C. Combinations of gene ontology and pathway characterize and predict prognosis genes for recurrence of gastric cancer after surgery. DNA Cell Biol 2015; 34:579-87. [PMID: 26154702 DOI: 10.1089/dna.2015.2923] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Gastric cancer (GC) is the second leading cause of death from cancer globally. The most common cause of GC is the infection of Helicobacter pylori, but ∼11% of cases are caused by genetic factors. However, recurrences occur in approximately one-third of stage II GC patients, even if they are treated with adjuvant chemotherapy or chemoradiotherapy. This is potentially due to expression variation of genes; some candidate prognostic genes were identified in patients with high-risk recurrences. The objective of this study was to develop an effective computational method for meaningfully interpreting these GC-related genes and accurately predicting novel prognostic genes for high-risk recurrence patients. We employed properties of genes (gene ontology [GO] and KEGG pathway information) as features to characterize GC-related genes. We obtained an optimal set of features for interpreting these genes. By applying the minimum redundancy maximum relevance algorithm, we predicted the GC-related genes. With the same approach, we further predicted the genes for the prognostic of high-risk recurrence. We obtained 1104 GO terms and KEGG pathways and 530 GO terms and KEGG pathways, respectively, that characterized GC-related genes and recurrence-related genes well. Finally, three novel prognostic genes were predicted to help supplement genetic markers of high-risk GC patients for recurrence after surgery. An in-depth text mining indicated that the results are quite consistent with previous knowledge. Survival analysis of patients confirmed the novel prognostic genes as markers. By analyzing the related genes, we developed a systematic method to interpret the possible underlying mechanism of GC. The novel prognostic genes facilitate the understanding and therapy of GC recurrences after surgery.
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Affiliation(s)
- Haiyan Fan
- 1 Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University , Shijiazhuang, People's Republic of China
| | - Zhanjun Guo
- 1 Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University , Shijiazhuang, People's Republic of China
| | - Cuijv Wang
- 2 Department of Gynecology Ultrasound, The Fourth Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
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Ishimoto T, Baba H, Izumi D, Sugihara H, Kurashige J, Iwatsuki M, Tan P. Current perspectives toward the identification of key players in gastric cancer microRNA dysregulation. Int J Cancer 2015; 138:1337-49. [DOI: 10.1002/ijc.29627] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/27/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Takatsugu Ishimoto
- Cancer and Stem Cell Biology; Duke-NUS Graduate Medical School Singapore; Singapore Singapore
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Daisuke Izumi
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Hidetaka Sugihara
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Junji Kurashige
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Masaaki Iwatsuki
- Department of Gastroenterological Surgery, Graduate School of Medical Science; Kumamoto University; Kumamoto Japan
| | - Patrick Tan
- Cancer and Stem Cell Biology; Duke-NUS Graduate Medical School Singapore; Singapore Singapore
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Ueo H, Sugimachi K, Gorges TM, Bartkowiak K, Yokobori T, Müller V, Shinden Y, Ueda M, Ueo H, Mori M, Kuwano H, Maehara Y, Ohno S, Pantel K, Mimori K. Circulating tumour cell-derived plastin3 is a novel marker for predicting long-term prognosis in patients with breast cancer. Br J Cancer 2015; 112:1519-26. [PMID: 25880010 PMCID: PMC4453677 DOI: 10.1038/bjc.2015.132] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 03/08/2015] [Accepted: 03/16/2015] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Identification of promising biomarkers that predict the prognosis of patients with breast cancer is needed. In this study, we hypothesised that the expression of the epithelial-mesenchymal transition-related biomarker plastin3 (PLS3) in peripheral blood could be a prognostic factor in breast cancer. METHODS We examined PLS3 expression in breast cancer cell lines with epithelial and mesenchymal traits and in circulating tumour cells (CTCs) obtained from the peripheral blood of breast cancer patients. We investigated PLS3 expression in the peripheral blood of 594 patients with breast cancer to evaluate the clinical significance of PLS3 expression. RESULTS Robust PLS3 expression was observed in different breast cancer cell lines (Hs578t, MCF-7, MDA-MB-468, and MDA-MB-231) as well as in a bone marrow derived cancer cell line (BC-M1). In both the training (n=298) and validation (n=296) sets, PLS3 expression was observed in CTCs of patients with breast cancer. PLS3-positive patients showed significantly poorer overall and disease-free survival than PLS3-negative patients (P=0.0001 and 0.003, respectively). Subset analysis revealed that this prognostic biomarker was relevant in patients with stage I-III cancer, particularly in patients with luminal-type and triple-negative-type tumours. CONCLUSIONS These data demonstrated that PLS3 was expressed in CTCs undergoing the epithelial-mesenchymal transition in patients with breast cancer. Furthermore, PLS3 may be an excellent biomarker for identifying groups at risk of recurrence or with a poor prognosis.
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Affiliation(s)
- H Ueo
- 1] Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874-0838, Japan [2] Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - K Sugimachi
- 1] Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874-0838, Japan [2] Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - T M Gorges
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany
| | - K Bartkowiak
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany
| | - T Yokobori
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22 Showamachi, Maebashi 371-0034, Japan
| | - V Müller
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany
| | - Y Shinden
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874-0838, Japan
| | - M Ueda
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874-0838, Japan
| | - H Ueo
- Department of Surgery, Ueo Breast Surgical Hospital, 188-2 Haya, Oita 870-0854, Japan
| | - M Mori
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan
| | - H Kuwano
- Department of General Surgical Science, Graduate School of Medicine, Gunma University, 3-39-22 Showamachi, Maebashi 371-0034, Japan
| | - Y Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - S Ohno
- Department of Breast Oncology, Kyushu Cancer Center, 3-1-1 Notame, Minami-ku, Fukuoka 811-1347, Japan
| | - K Pantel
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany
| | - K Mimori
- Department of Surgery, Kyushu University Beppu Hospital, 4546 Tsurumihara, Beppu 874-0838, Japan
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MicroRNA let-7b suppresses human gastric cancer malignancy by targeting ING1. Cancer Gene Ther 2015; 22:122-9. [PMID: 25613480 DOI: 10.1038/cgt.2014.75] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 11/23/2014] [Accepted: 11/24/2014] [Indexed: 12/21/2022]
Abstract
MicroRNAs (miRNAs) are important regulators that play key roles in tumorigenesis and tumor progression. In this study, we investigate whether let-7b acts as a tumor suppressor to inhibit invasion and metastasis in gastric cancers. We analyzed the expression of let-7b in 60 pair-matched gastric neoplastic and adjacent non-neoplastic tissues by quantitative real-time polymerase chain reaction. Functional analysis of let-7b expression was assessed in vitro in gastric cancer cell lines with let-7b precursor and inhibitor. The roles of let-7b in tumorigenesis and tumor metastasis were analyzed using a stable let-7b expression plasmid in nude mice. A luciferase reporter assay was used to assess the effect of let-7b on inhibitor of growth family, member 1 (ING1) expression. Real-time PCR showed decreased levels of let-7b expression in metastatic gastric cancer tissues and cell lines that are potentially highly metastatic. Cell invasion and migration were significantly impaired in GC9811-P and SGC7901-M cell lines after transfection with let-7b mimics. Nude mice with xenograft models of gastric cancer confirmed that let-7b could inhibit gastric cancer metastasis in vivo after transfection by the lentivirus pGCsil-GFP- let-7b. Luciferase reporter assays demonstrated that let-7b directly binds to the 3'-UTR of ING1, and real-time PCR and western blotting further indicated that let-7b downregulated the expression of ING1 at the mRNA and protein levels. Our study demonstrates that overexpression of let-7b in gastric cancer can inhibit invasion and migration of gastric cancer cells through directly targeting the tumor metastasis-associated gene ING1. These findings help clarify the molecular mechanisms involved in gastric cancer metastasis and indicate that let-7b modulation may be a bona fide treatment of gastric cancer.
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Lv J, Fu Z, Shi M, Xia K, Ji C, Xu P, Lv M, Pan B, Dai L, Xie H. Systematic analysis of gene expression pattern in has-miR-760 overexpressed resistance of the MCF-7 human breast cancer cell to doxorubicin. Biomed Pharmacother 2014; 69:162-9. [PMID: 25661353 DOI: 10.1016/j.biopha.2014.11.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 11/12/2014] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND/AIMS Chemoresistance of breast cancer is a growing problem and still a major clinical obstacle to successful treatment in clinical patients. miR-760 was significantly downregulated in chemoresistance breast cancer tissues compared to chemo-sensitive tissues in our previous study. However, the role of miR-760 in modulating drug resistance remains largely unexplored. In this study, we sought to determine the expression pattern of miR-760 targeted mRNAs, and explore their potential functions and participated-pathways in breast cancer drug resistance cells. RESULTS Compared to parental cell line MCF-7, miR-760 was downregulated by 6.15 folds in MCF-7/Adr cells. The qRT-PCR result showed that compared to miR-760 negative control cells group, miR-760 was up-regulated 15.817 folds after miR-760 lentiviral transfection in miR-760 mimics group. The microarray data showed that 270 genes were dysregulated over 2-fold change in MCF-7/Adr cells after miR-760 overexpressed, including 241 up-regulated and 29 downregulated genes. GO analysis result appeared that the predicted target genes of miR-760 mainly regulated DNA binding, protein binding, molecular function, nucleic acid binding, and so on; the pathway analysis data demonstrated that these target genes mainly involved in cell cycle, TGF-beta signaling pathway, mRNA processing reactome, G protein signaling, apoptosis, Wnt signaling pathway, and other signaling pathways. There were 3 predicted target genes (RHOB, ANGOTL4, ABCA1) of miR-760 were selected at a P value<0.05 and the fold enrichment was>40. CONCLUSION Our study explored the genes expression pattern after miR-760 overexpresssed, and confirmed 3 dominantly dysregulated genes, which could expand the insights into the miR-760 function and molecular mechanisms in drug resistance of breast cancer. This study might afford a comprehensive understanding of miR-760 as prognostic biomarkers during clinical treatment, and we supposed that the miR-760 expression levels in drug resistance carcinoma tissues could be pursued to develop new strategies for targeted therapies in chemoresistant breast cancer patients.
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Affiliation(s)
- Jianxin Lv
- Yangzhou Maternal and Child Health Hospital, Affiliated with Yangzhou Medical University, Yangzhou 225002, China
| | - Ziyi Fu
- Nanjing Maternal and Child Health Medical Institute, Affiliated Nanjing Maternal and Child Health Hospital, Nanjing Medical University, Nanjing 210004, China
| | - Min Shi
- Yangzhou Maternal and Child Health Hospital, Affiliated with Yangzhou Medical University, Yangzhou 225002, China
| | - Kai Xia
- The Affiliated Jiangyin Hospital of Southeast University Medical College, Jiangyin 214400, China
| | - Chenbo Ji
- Nanjing Maternal and Child Health Medical Institute, Affiliated Nanjing Maternal and Child Health Hospital, Nanjing Medical University, Nanjing 210004, China
| | - Pengfei Xu
- Nanjing Maternal and Child Health Medical Institute, Affiliated Nanjing Maternal and Child Health Hospital, Nanjing Medical University, Nanjing 210004, China
| | - Mingming Lv
- Nanjing Maternal and Child Health Medical Institute, Affiliated Nanjing Maternal and Child Health Hospital, Nanjing Medical University, Nanjing 210004, China
| | - Bo Pan
- Yangzhou Maternal and Child Health Hospital, Affiliated with Yangzhou Medical University, Yangzhou 225002, China
| | - Luxian Dai
- Yangzhou Maternal and Child Health Hospital, Affiliated with Yangzhou Medical University, Yangzhou 225002, China
| | - Hui Xie
- Nanjing Maternal and Child Health Medical Institute, Affiliated Nanjing Maternal and Child Health Hospital, Nanjing Medical University, Nanjing 210004, China; The People's Hospital of Jiangsu Province/The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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