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Liu XG, Xu H, Chen M, Tan XY, Chen XF, Yang YG, Lin MZ, Liu GH, Liang XL, Qian YB, Yuan GJ, Chen MQ, Li WT, Miao HL, Li MY, Liao XW, Dai W, Chen NP. Identify potential clinical significance of long noncoding RNA forkhead box P4 antisense RNA 1 in patients with early stage pancreatic ductal adenocarcinoma. Cancer Med 2020; 9:2062-2076. [PMID: 31991068 PMCID: PMC7064149 DOI: 10.1002/cam4.2818] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/04/2019] [Accepted: 12/17/2019] [Indexed: 12/21/2022] Open
Abstract
Previous studies have shown that forkhead box P4 antisense RNA 1 (FOXP4‐AS1) is dysregulated in tumor tissues and can serve as a prognostic indicator for multiple cancers. However, the clinical significance of FOXP4‐AS1 in pancreatic ductal adenocarcinoma (PDAC) remains unclear. The goal of this study is to recognize the possible clinical significance of long noncoding RNA FOXP4‐AS1 in patients with early stage PDAC. A total of 112 patients from The Cancer Genome Atlas (TCGA) PDAC cohort, receiving RNA sequencing, were involved in the study. Survival analysis, functional mechanism, and potential small molecule drugs of target therapy of FOXP4‐AS1 were performed in this study. Survival analysis in TCGA PDAC cohort suggested that patients with high FOXP4‐AS1 expression had significantly augmented possibility of death than in PDAC patients with lower FOXP4‐AS1 expression (adjusted P = .008; adjusted HR = 2.143, 95% CI = 1.221‐3.760). In this study, a genome‐wide RNA sequencing dataset was used to identify 927 genes co‐expressing with FOXP4‐AS1 in PDAC tumor tissues. A total of 676 differentially expressed genes were identified between different FOXP4‐AS1 expression groups. Functional enrichment analysis of these genes and gene set enrichment analysis for PDAC genome‐wide RNA sequencing dataset was done. We have found that FOXP4‐AS1 may function in PDAC by participating in biological processes and pathways including oxidative phosphorylation, tricarboxylic acid cycle, classical tumor‐related pathways such as NF‐kappaB as well as Janus kinase/signal transducers in addition to activators of transcription, cell proliferation, and adhesion. In addition, we also screened two potential targeted therapeutic small molecule drugs (dimenhydrinate and metanephrine) for FOXP4‐AS1 in PDAC. In conclusion, our present study demonstrated that higher expression of FOXP4‐AS1 in PDAC tumor tissues were related with an inferior medical outcome. Through multiple genome‐wide approaches, we identified the potential molecular mechanisms of FOXP4‐AS1 in PDAC and two targeted therapeutic drugs for it.
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Affiliation(s)
- Xiao-Guang Liu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Hao Xu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Ming Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Xiao-Yu Tan
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Xiao-Feng Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Yong-Guang Yang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Man-Zhou Lin
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Guo-Hua Liu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Xiao-Lu Liang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Yi-Bin Qian
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Guo-Jia Yuan
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Min-Qiang Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Wen-Tao Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Hui-Lai Miao
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Ming-Yi Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Xi-Wen Liao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Wei Dai
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
| | - Nian-Ping Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People's Republic of China
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Lei S, He Z, Chen T, Guo X, Zeng Z, Shen Y, Jiang J. Long noncoding RNA 00976 promotes pancreatic cancer progression through OTUD7B by sponging miR-137 involving EGFR/MAPK pathway. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:470. [PMID: 31747939 PMCID: PMC6868788 DOI: 10.1186/s13046-019-1388-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 08/19/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Accumulation evidence indicates the vital role of long non-coding RNAs (lncRNAs) in tumorigenesis and the progression of malignant tumors, including pancreatic cancer (PC). However, the role and the molecular mechanism of long non-coding RNA 00976 is unclear in pancreatic cancer. METHODS In situ hybridization (ISH) and qRT-PCR was performed to investigate the association between linc00976 expression and the clinicopathological characteristics and prognosis of patients with PC. Subsequently, linc00976 over-expression vector and shRNAs were transfected into PC cells to up-regulate or down-regulate linc00976 expression. Loss- and gain-of function assays were performed to investigate the role of linc00976 in proliferation and metastasis in vitro and vivo. ITRAQ, bioinformatic analysis and rescue assay were used to illustrate the ceRNA mechanism network of linc00976/miR-137/OTUD7B and its downstream EGFR/MAPK signaling pathway. RESULTS linc00976 expression was overexpressed in PC tissues and cell lines and was positively associated with poorer survival in patients with PC. Function studies revealed that linc00976 knockdown significantly suppressed cell proliferation, migration and invasion in vivo and in vitro, whereas its overexpression reversed these effects. Based on Itraq results and online database prediction, Ovarian tumor proteases OTUD7B was found as a downstream gene of linc00976, which deubiquitinated EGFR mediates MAPK signaling activation. Furthermore, Bioinformatics analysis and luciferase assays and rescue experiments revealed that linc00976/miR137/OTUD7B established the ceRNA network modulating PC cell proliferation and tumor growth. CONCLUSION The present study demonstrates that linc00976 enhances the proliferation and invasion ability of PC cells by upregulating OTUD7B expression, which was a target of miR-137. Ultimately, OTUD7B mediates EGFR and MAPK signaling pathway, suggesting that linc00976/miR-137/OTUD7B/EGFR axis may act as a potential biomarker and therapeutic target for PC.
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Affiliation(s)
- Shan Lei
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, 99 Ziyang Road, Wuhan City, Hubei Province, 430060, People's Republic of China.,Key Laboratory of Tissue Engineering and Stem Cell of Guizhou Province, Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, 550009, Guizhou, China
| | - Zhiwei He
- Department of Hepatic-Biliary-Pancreatic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Tengxiang Chen
- Key Laboratory of Tissue Engineering and Stem Cell of Guizhou Province, Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, 550009, Guizhou, China
| | - Xingjun Guo
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430060, China
| | - Zhirui Zeng
- Key Laboratory of Tissue Engineering and Stem Cell of Guizhou Province, Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, 550009, Guizhou, China
| | - Yiyi Shen
- Department of Hepatic-Biliary-Pancreatic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jianxin Jiang
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, 99 Ziyang Road, Wuhan City, Hubei Province, 430060, People's Republic of China. .,Hubei Key Laboratory of Digestive System Disease of Wuhan University, Wuhan, 430060, China.
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Hua YQ, Zhu YD, Xie GQ, Zhang K, Sheng J, Zhu ZF, Ning ZY, Chen H, Chen Z, Meng ZQ, Liu LM. Long non-coding SBF2-AS1 acting as a competing endogenous RNA to sponge microRNA-142-3p to participate in gemcitabine resistance in pancreatic cancer via upregulating TWF1. Aging (Albany NY) 2019; 11:8860-8878. [PMID: 31619579 PMCID: PMC6834408 DOI: 10.18632/aging.102307] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/17/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE This study is implemented to probe into the function of lncRNA SBF2-AS1 as a competing endogenous RNA (ceRNA) to sponge microRNA-142-3p (miR-142-3p) in modulating TWF1 expression in the gemcitabine resistance of pancreatic cancer. RESULTS LncRNA SBF2-AS1 was highly expressed in pancreatic cancer tissues and cells. SBF2-AS1 was found to be associated with gemcitabine resistance in pancreatic cancer. Knock-down of SBF2-AS1 inhibited proliferation, epithelial-mesenchymal transition, while promoting apoptosis of gemcitabine resistant pancreatic cancer cells. SBF2-AS1 inhibited the expression of TWF1 by competitively binding with miR-142-3p in pancreatic cancer. CONCLUSION Our study demonstrates that knock-down of SBF2-AS1 inhibits the expression of TWF1 by competitively binding with miR-142-3p to induce gemcitabine resistance in pancreatic cancer. METHODS Expression of SBF2-AS1 was tested in pancreatic cancer tissues and cells. Construction of AsPC-1/GEM and PANC-1/GEM cells with low expression of SBF2-AS1 was performed to determine the biological behaviors of drug-resistant cells. AsPC-1 and PANC-1 cells expressing SBF2-AS1 and/or miR-142-3p were constructed and treated with different concentrations of gemcitabine to detect the sensitivity of the cells to gemcitabine. The binding relationship between SBF2-AS1 and miR-142-3p and between miR-142-3p and TWF1 were determined.
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Affiliation(s)
- Yong-Qiang Hua
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Yao-Dong Zhu
- Chinese Integrative Medicine Oncology Department, First Affiliated Hospital of Medical University of Anhui, Hefei 230000, Anhui Province, PR China
| | - Guo-Qun Xie
- Oncology Department, Yueyang Hospital of Integrative Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200437, PR China
| | - Ke Zhang
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Jie Sheng
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Zhen-Feng Zhu
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Zhou-Yu Ning
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Hao Chen
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Zhen Chen
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Zhi-Qiang Meng
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
| | - Lu-Ming Liu
- Minimally Invasive Treatment Center, Fudan University Shanghai Cancer Center, Shanghai 200032, PR China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, PR China
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Jiang Y, Chen J, Chen G. Long noncoding RNA IRAIN acts as tumor suppressor via miR-125b in multiple myeloma. Oncol Lett 2019; 18:6787-6794. [PMID: 31788123 DOI: 10.3892/ol.2019.11012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 09/07/2019] [Indexed: 01/15/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) are aberrantly expressed in a variety of cancer types. The lncRNA IGF1R antisense imprinted non-protein coding RNA (IRAIN) is associated with various cancer types, yet the role of IRAIN in multiple myeloma (MM) progression remains unclear. In the present study it was identified that IRAIN may act as a tumor suppressor in MM, whilst microRNA (miR)-125b may promote tumorigenesis. Downregulation of IRAIN significantly increased the expression of miR-125b. Furthermore, by using dual-luciferase reporter assays, IRAIN was identified as a target of miR-125b. Knockdown of IRAIN promoted MM cell proliferation in vitro. Thus, expression levels of IRAIN may be used to predict the clinical prognosis of patients with MM and may be a novel therapeutic target for treating MM.
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Affiliation(s)
- Yanxia Jiang
- Hematology Department, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Jian Chen
- Hematology Department, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
| | - Guoan Chen
- Hematology Department, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, P.R. China
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Yan J, Jia Y, Chen H, Chen W, Zhou X. Long non-coding RNA PXN-AS1 suppresses pancreatic cancer progression by acting as a competing endogenous RNA of miR-3064 to upregulate PIP4K2B expression. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:390. [PMID: 31488171 PMCID: PMC6727519 DOI: 10.1186/s13046-019-1379-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 08/12/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Dysregulation of microRNAs (miRNAs) play critical roles in cancerous processes. Although miR-3064 was reported to be an important tumor suppressor in ovarian cancer, the cellular impact of miR-3064 on pancreatic cancer (PC) progression, its downstream target genes and upstream mechanisms that control the expression of miR-3064 remain to be fully clarified. METHODS We compared miRNA expression profiles between PC tissues compared with normal tissues using a miRNA microarray analysis of clinical samples, and screened the identified miRNAs for their influence on cell proliferation. We measured the expression of miR-3064 in PC tissues and PC cell lines using quantitative real-time PCR assays. Gain- and loss-of-function experiments were conducted to explore the biologic significance of miR-3064 in PC progression both in vitro and in vivo. The interactions between miR-3064 and long noncoding RNA (lncRNA) PXN-AS1 was verified using the luciferase reporter assay and RNA immunoprecipitation assay. RESULTS We showed that miR-3064 was significantly overexpressed in PC tissues compared to normal tissues. High miR-3064 was associated with worse prognosis in patients with PC. Functionally, ectopic expression of miR-3064 promoted the proliferation, invasion, clone formation and sphere formation of PC cells in vitro and stimulated PC growth in vivo, while specific knockdown of miR-3064 or CRISPR/Cas9-mediated knockout of miR-3064 resulted in opposite phenotypes. Further investigation revealed that miR-3064 directly targeted PIP4K2B, which was reduced in PC tissues and attenuated PC cell proliferation, invasion and sphere formation induced by miR-3064. Importantly, lncRNA PXN-AS1 expression was downregulated in PC samples, and it directly interacted with miR-3064 and suppressed its levels in PC cells. Enforced expression of PXN-AS1 remarkably decreased cell proliferation, invasion and sphere formation, while re-expression of miR-3064 abrogated these effects of PXN-AS1. CONCLUSIONS MiR-3064, a key oncogenic miRNA, could promote PC cell growth, invasion and sphere formation via downregulating the levels of tumor suppressor PIP4K2B. PXN-AS1 functioned as a sponge to suppress the expression of miR-3064. These observations offer fresh insight into the mechanisms through which miR-3064 modulates the development of PC.
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Affiliation(s)
- Jiayan Yan
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Yunxi Jia
- Department of endoscopy of geriatric gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Han Chen
- Department of gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Wei Chen
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Xiaoying Zhou
- Department of gastroenterology, First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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Lv Y, Huang S. Role of non-coding RNA in pancreatic cancer. Oncol Lett 2019; 18:3963-3973. [PMID: 31579086 PMCID: PMC6757267 DOI: 10.3892/ol.2019.10758] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 06/05/2019] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is a malignant disease that develops rapidly and carries a poor prognosis. Currently, surgery is the only radical treatment. Non-coding RNAs (ncRNAs) are protein-free RNAs produced by genome transcription; they play important roles in regulating gene expression, participating in epigenetic modification, cell proliferation, differentiation and reproduction. ncRNAs also play key roles in the development of cancer; microRNA (miRNA) and long non-coding RNA (lncRNA) may lead the way to new treatments for pancreatic cancer. miRNAs are short-chain ncRNAs (19–24 nt) that inhibit the degradation of protein translation or their target gene mRNAs to regulate gene expression. lncRNAs contain >200 nt of ncRNA and play important regulatory roles in a number of malignant tumors, in terms of tumor cell proliferation, apoptosis, invasion and distant metastasis. lncRNAs can be exploited for the diagnosis and treatment of pancreatic cancer and have substantial prospects for clinical application. Nevertheless, the molecular mechanism of their regulation and function, as well as the significance of other ncRNAs, such as piwi-interacting RNA, in the pathogenesis of pancreatic cancer, are largely unknown. In this review, the structures of ncRNAs with various classifications, as well as the functions and important roles of ncRNAs in the diagnosis and treatment of pancreatic cancer are reviewed.
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Affiliation(s)
- Yinghao Lv
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Shuai Huang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Yang Y, Fei M, Zhou X, Li Y, Jin D. The potential value of lncRNA-BC050642 in osteosarcoma origination and outcomes. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:1859-1866. [PMID: 31397185 DOI: 10.1080/21691401.2019.1611593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yang Yang
- Department of Orthopedics, Academy of Orthopedics of Guangdong Province, the Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Mengxue Fei
- Department of Environmental Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Xinying Zhou
- Department of Orthopedics, Academy of Orthopedics of Guangdong Province, the Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Yuejun Li
- Department of Orthopedics, Academy of Orthopedics of Guangdong Province, the Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Dadi Jin
- Department of Orthopedics, Academy of Orthopedics of Guangdong Province, the Third Affiliated Hospital, Southern Medical University, Guangzhou, China
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Zhao Y, Ai Y. Overexpression of lncRNA Gm15621 alleviates apoptosis and inflammation response resulting from sevoflurane treatment through inhibiting miR-133a/Sox4. J Cell Physiol 2019; 235:957-965. [PMID: 31264218 DOI: 10.1002/jcp.29011] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 05/28/2019] [Indexed: 12/20/2022]
Abstract
Sevoflurane is the most widely used anesthetic administered by inhalation. Exposure to sevoflurane can elicit learning deficits and abnormal cognitive disorder. In this study, we investigated the function of long noncoding RNA (lncRNA) Gm15621. Primary hippocampal neuron cells were used to analyze the function of lncRNA Gm15621 in vitro. The tunel, inflammation markers, and cell survival rates were detected to evaluate the function of lncRNA Gm15621. Dual-luciferase reporter assay was used to identify the interaction between microRNA 133a and Gm15621. We found that lncRNA Gm15621 located in the cytoplasm. The expression of lncRNA Gm15621 was decreased with the development of sevoflurane exposure. Overexpression of lncRNA Gm15621 significantly reduced the apoptosis and cell survival rates. The inflammation response was also attenuated in lncRNA Gm15621 overexpressed group. The dual-luciferase assay revealed that miR-133a was the direct target of lncRNA Gm15621. In addition, we also found that Sox4 was a downstream target of miR-133a and lncRNA Gm15621 exerted its biological functions by regulating the expression of Sox4. In summary, our findings revealed that lncRNA Gm15621 ameliorated the sevoflurane-induced neurotoxicity and the important role of Gm15621/miR-133a/Sox4 axis in cognitive disorder.
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Affiliation(s)
- Yanling Zhao
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanqiu Ai
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Qin Y, Liu X, Pan L, Zhou R, Zhang X. Long noncoding RNA MIR155HG facilitates pancreatic cancer progression through negative regulation of miR-802. J Cell Biochem 2019; 120:17926-17934. [PMID: 31161625 DOI: 10.1002/jcb.29060] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 04/12/2019] [Accepted: 04/18/2019] [Indexed: 12/19/2022]
Abstract
Long noncoding RNAs (lncRNAs) present the key regulatory functions in tumorigenesis. More and more studies have suggested that lncRNA MIR155HG is involved in different human cancers. However, the underlying regulatory role of lncRNA MIR155HG and potential mechanisms in pancreatic cancer (PC) remain illusive. In this research, our group found that lncRNA MIR155HG expression was remarkably increased in PC tumor tissue and cells compared to that in the adjacent normal tissue and cells. In addition, higher MIR155HG expression was positively associated with the poor prognosis of patients. In addition, we exhibited that silence of MIR155HG by short hairpin RNA knockdown significantly inhibited cell growth and promoted cell apoptosis in PC cells. We performed bioinformatics analysis to search for the target of MIR155HG. As demonstrated by Luciferase reporter assay, we found that miR-802, a tumor suppressor in various cancer, is a direct target of MIR155HG. We demonstrated that the tumor-promoting effects of MIR155HG were contributed by negative regulation of miR-802 in PC cells. In summary, our results suggest that lncRNA MIR155HG might be applied as a novel diagnostic and therapeutic target for PC.
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Affiliation(s)
- Yan Qin
- Department of Gastroenterology, People's Hospital of Jintan District of Changzhou, Changzhou, Jiangsu, P.R. China
| | - Xin Liu
- Department of Internal Medicine, Hospital of Nanjing University of Science and Technology, Nanjing, Jiangsu, P.R. China
| | - Liang Pan
- Department of Gastroenterology, People's Hospital of Jintan District of Changzhou, Changzhou, Jiangsu, P.R. China
| | - Rong Zhou
- Department of Respiratory Medicine, First People's Hospital of Changzhou, Changzhou, Jiangsu, P.R. China
| | - Xiaoping Zhang
- Department of Gastroenterology, People's Hospital of Jintan District of Changzhou, Changzhou, Jiangsu, P.R. China
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Liu S, Zhang W, Liu K, Liu Y. LncRNA SNHG16 promotes tumor growth of pancreatic cancer by targeting miR-218-5p. Biomed Pharmacother 2019; 114:108862. [PMID: 30981105 DOI: 10.1016/j.biopha.2019.108862] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/31/2019] [Accepted: 04/04/2019] [Indexed: 12/12/2022] Open
Abstract
Small Nucleolar RNA Host Gene (SNHG16) is a novel cancer-related long noncoding RNA (lncRNA) and functions as an oncogene in a variety of cancers. Nonetheless, the expression patterns, biological function, and potential mechanisms in SNHG16 in pancreatic cancer (PC) remain rarely known. An increase in expression of SNHG16 in PC samples against adjacent normal tissues was shown here. Increased SNHG16 was linked intimately to the tumor-node-metastasis (TNM) stage, distant metastasis, tumor differentiation, and poor overall survival. Loss-of-function experiments revealed that SNHG16 knockdown suppressed the proliferation, formation of colonies, ability to migrate and invade in vitro, along with a lowered growth of the tumor in a mouse model. Mechanistically, SNHG16 might serve as a sponge competitive endogenous RNA (ceRNA) for miR-218-5p, thereby playing a role in regulating the expression of high mobility group box 1 (HMGB1) expression, a known direct miR-218-5p target in PC cells. These results provide novel insight into PC tumorigenesis and suggest that SNHG16 could serve as a likely therapeutic intervention in PC.
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Affiliation(s)
- Songyang Liu
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Wei Zhang
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Kai Liu
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China
| | - Yahui Liu
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, PR China.
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Abstract
Cancer-initiating cells (CIC) are the driving force in tumor progression. There is strong evidence that CIC fulfill this task via exosomes (TEX), which modulate and reprogram stroma, nontransformed cells, and non-CIC. Characterization of CIC, besides others, builds on expression of CIC markers, many of which are known as metastasis-associated molecules. We here discuss that the linkage between CIC/CIC-TEX and metastasis-associated molecules is not fortuitously, but relies on the contribution of these markers to TEX biogenesis including loading and TEX target interactions. In addition, CIC markers contribute to TEX binding- and uptake-promoted activation of signaling cascades, transcription initiation, and translational control. Our point of view will be outlined for pancreas and colon CIC highly expressing CD44v6, Tspan8, EPCAM, claudin7, and LGR5, which distinctly but coordinately contribute to tumor progression. Despite overwhelming progress in unraveling the metastatic cascade and the multiple tasks taken over by CIC-TEX, there remains a considerable gap in linking CIC biomarkers, TEX, and TEX-initiated target modulation with metastasis. We will try to outline possible bridges, which could allow depicting pathways for new and expectedly powerful therapeutic interference with tumor progression.
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Affiliation(s)
- Zhe Wang
- Department of Oncology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
| | - Margot Zöller
- Department of Oncology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
- Pancreas Section, University Hospital of Surgery, Heidelberg, Germany.
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Liu Y, Sun H, Makabel B, Cui Q, Li J, Su C, Ashby CR, Chen Z, Zhang J. The targeting of non‑coding RNAs by curcumin: Facts and hopes for cancer therapy (Review). Oncol Rep 2019; 42:20-34. [PMID: 31059075 PMCID: PMC6549103 DOI: 10.3892/or.2019.7148] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 04/24/2019] [Indexed: 02/07/2023] Open
Abstract
Curcumin [(1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl) hepta-1,6-diene-3,5-dione] is a natural polyphenol that is derived from the turmeric plant (curcuma longa L.). Curcumin is widely used in food coloring, preservatives, and condiments. Curcumin possesses anti-tumor, anti-oxidative and anti-inflammatory efficacy, as well as other pharmacological effects. Emerging evidence indicates that curcumin alters microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in various types of cancers. Both miRNAs and lncRNAs are non-coding RNAs that can epigenetically modulate the expression of multiple genes via post-transcriptional regulation. In the present review, the interactions between curcumin and non-coding RNAs are summarized in numerous types of cancers, including lung, colorectal, prostate, breast, nasopharyngeal, pancreatic, blood, and ovarian cancer, and the vital non-coding RNAs and their downstream targets are described.
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Affiliation(s)
- Yun Liu
- Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Hongmei Sun
- Infinitus (China) Company Ltd., Jiangmen, Guangdong 529156, P.R. China
| | - Bolat Makabel
- Xinjiang Institute of Materia Medica, Urumqi, Xinjiang 830004, P.R. China
| | - Qingbin Cui
- College of Pharmacy and Health Sciences, St. John's University, Queens, New York, NY 11439, USA
| | - Jiajun Li
- Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Chaoyue Su
- Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Charles R Ashby
- College of Pharmacy and Health Sciences, St. John's University, Queens, New York, NY 11439, USA
| | - Zhesheng Chen
- College of Pharmacy and Health Sciences, St. John's University, Queens, New York, NY 11439, USA
| | - Jianye Zhang
- Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
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Huang F, Zhang Q, Chen W, Zhang H, Lu G, Chen J, Qiu C. Long noncoding RNA cancer susceptibility candidate 2 suppresses papillary thyroid carcinoma growth by inactivating the AKT/ERK1/2 signaling pathway. J Cell Biochem 2019; 120:10380-10390. [PMID: 30609134 DOI: 10.1002/jcb.28322] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/28/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Cancer susceptibility candidate 2 (CASC2) and long noncoding RNA (lncRNA) have been identified as a tumor suppressor in colorectal, lung, renal, and stomach cancer as well as in patient gliomas, but the function of CASC2 in papillary thyroid carcinoma (PTC) is not yet clear. The present study aimed to explore the effects of CASC2 in PTC. METHODS The CASC2 expression was measured in PTC samples and normal tissues by using quantitative real-time polymerase chain reaction. The lentiviral vectors were used to establish CASC2 overexpression models in PTC cell lines to determine the effects of CASC2 on cell proliferation, apoptosis, migration, and invasion. A tumor xenograft animal model was used to examine the functions of overexpression CASC2. RESULTS CASC2 expression was significantly decreased in PTC tumor tissues than adjacent normal tissues. CASC2 downregulation in PTC tissues significantly correlated with the tumor size, the presence of multifocal lesions, and the advanced pathological stage. CASC2 overexpression suppressed the cell proliferation and promoted apoptosis in PTC cell lines and CASC2 overexpression resulted in the inactivation of protein kinase B (PKB/AKT) and extracellular signal-regulated kinases (ERK1/2). The regulatory effects of CASC2 on PTC cell biological behavior were further enhanced by mitogen-activated protein kinase kinase (MEK) inhibitor U0126 or AKT1/2/3 inhibitor MK-2206 2HCl. CASC2 overexpression suppressed tumor growth in PTC cells in xenograft mouse models. CONCLUSION Our results indicated that CASC2 significantly suppressed tumorigenesis in PTC and CASC2 may serve as a novel prognostic marker or therapeutic target.
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Affiliation(s)
- Fei Huang
- Department of General Surgery, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Qing Zhang
- Department of General Surgery, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, China
| | - Wei Chen
- Department of Pathology, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, China
| | - Huiting Zhang
- Department of General Surgery, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, China
| | - Guofen Lu
- Department of General Surgery, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, China
| | - Jingyu Chen
- Department of General Surgery, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, China
| | - Changhong Qiu
- Department of General Surgery, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, China
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Dong J, Zheng S, Yang X, Song X. Cell proliferation in kidney carcinoma is inhibited by lncRNA GASL1. EUR J INFLAMM 2019. [DOI: 10.1177/2058739219854598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Long noncoding RNA (lncRNA) GASL1 was identified as a novel lncRNA, which plays an important role in the proliferation and apoptosis of cells. This study aimed to compare the expression of GASL1 mRNA in kidney cancer cells and normal cells and detect the biological role of GASL1 in kidney cancer cell line A498. Polymerase chain reaction (PCR) was performed to examine the expression of GASL1 mRNA in kidney cancer tissues, normal tissues, and the cell lines. GASL1 overexpression was achieved in kidney cancer cell lines A498 through transfection. MTT was used to detect the effects of GASL1 overexpression in A498 cells. GASL1 mRNA was significantly overexpressed in adjacent normal tissues compared with renal cell carcinoma. The expression of GASL1 is lower in kidney cancer cell lines than in normal kidney epithelium cell line HREpiC. Overexpression of GASL1 inhibits the proliferation of renal carcinoma cell lines. GASL1 mRNA was down-regulated in kidney cancer tissues and may play a role in kidney cancer cell proliferation.
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Affiliation(s)
- Jianping Dong
- Department of Uropoiesis Surgical, Shouguang People’s Hospital, Shouguang, China
| | - Shiping Zheng
- Department of Uropoiesis Surgical, Shouguang People’s Hospital, Shouguang, China
| | - Xiaoyan Yang
- Department of Uropoiesis Surgical, Shouguang People’s Hospital, Shouguang, China
| | - Xiuyan Song
- Department of Uropoiesis Surgical, Shouguang People’s Hospital, Shouguang, China
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Mungamuri SK. Targeting the epigenome as a therapeutic strategy for pancreatic tumors. THERANOSTIC APPROACH FOR PANCREATIC CANCER 2019:211-244. [DOI: 10.1016/b978-0-12-819457-7.00011-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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Weng YC, Ma J, Zhang J, Wang JC. Long non-coding RNA LINC01133 silencing exerts antioncogenic effect in pancreatic cancer through the methylation of DKK1 promoter and the activation of Wnt signaling pathway. Cancer Biol Ther 2018; 20:368-380. [PMID: 30580676 DOI: 10.1080/15384047.2018.1529110] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Recent studies have acknowledged the critical roles played by long non-coding RNAs (lncRNAs) in the development and progression of pancreatic cancer. Therefore, the present study aimed to elucidate the mechanism underlying on how LINC01133 regulates the Wnt signaling pathway in pancreatic cancer. A microarray-based gene expression analysis was performed to identify the differentially expressed lncRNAs in pancreatic cancer. In addition, ectopic expression assays, knockdown experiments and gene reporter assays were conducted to clarify the role of LINC01133 in pancreatic cancer and to understand the interaction between LINC01133 and the methylation of DKK1 promoter. The expression of LINC01133, DKK1, and other genes related to the Wnt signaling pathway was also measured. EDU staining, scratch test and Transwell assay were employed to measure the proliferation, migration and invasion of pancreatic cancer cells, respectively. GSE32676 and GSE16515 revealed that LINC01133 was upregulated in pancreatic cancer, which was also associated with increased DKK1 methylation and higher expression of genes related to the Wnt signaling pathway, although the expression of DKK1 decreased in pancreatic cancer. In addition, LINC01133 bound to the promoter region of DKK1, resulting in the trimethylation of H3K27 and decreased DKK1 expression, while the expression of Wnt-5a, MMP-7, and β-catenin increased upon LINC01133 binding. Finally, over-expressed LINC01133 enhanced the growth, proliferation, migration, metastasis, and invasion of pancreatic cancer cells. The present study clarified the distinct effect of LINC01133 on pancreatic cancer. In summary, by inducing the methylation of DKK1 promoter, LINC01133 silencing suppresses the development of pancreatic cancer cells through the Wnt signaling pathway.
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Affiliation(s)
- Yuan-Chi Weng
- a Department of General Surgery , Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine , Shanghai , P.R. China
| | - Jin Ma
- b Department of Gastroenterology , Luwan Branch of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine , Shanghai , P.R. China
| | - Jun Zhang
- a Department of General Surgery , Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine , Shanghai , P.R. China
| | - Jian-Cheng Wang
- a Department of General Surgery , Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine , Shanghai , P.R. China
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Chen L, Liu J, Tang T, Zhang YC, Liu MZ, Xu LY, Zhang J. lncRNA differentiation antagonizing nonprotein coding RNA overexpression accelerates progression and indicates poor prognosis in pancreatic ductal adenocarcinoma. Onco Targets Ther 2018; 11:7955-7965. [PMID: 30519037 PMCID: PMC6235324 DOI: 10.2147/ott.s167065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background lncRNA differentiation antagonizing nonprotein coding RNA (lncRNA DANCR) has been suggested to play an oncogenic role in multiple cancers. However, to the best of our knowledge, the clinical significance and role of DANCR in pancreatic ductal adenocarcinoma (PDAC) has not been illuminated till now. The present study aims to identify the functional role of DANCR in PDAC. Methods The expression of DANCR was detected in PDAC cells and tissues. The correlation of DANCR expression and PDAC clinicopahological features was analysed. Kaplan-Meier method was used to depict the overall survival (OS) rate and shorter progression-free survival (PFS) of PDAC patients, and Log-rank test was performed to analyse the difference. Univariate and multivariate COX regression model were utilized to analyse the risk factors for prognosis. Transwell assay and Matrigel assay were conducted to detect the effect of DANCR on the migration and invasion of PDAC cells, respectively. Colony formation assay and Cell Counting Kit-8 (CCK-8) assay were performed to evaluate the function of DANCR on proliferation. The mechanisms of DANCR exerting its function were also explored. Results DANCR was revealed to promote PDAC progression, with relatively higher expression levels in PDAC cell lines and tissues. Correlation analysis of the clinicopathological features and DANCR expression found that high DANCR expression was statistically correlated with vascular invasion (P=0.013), advanced T stage (P=0.005), lymph node metastasis (P<0.001) and advanced TNM stage (P<0.001). Notably, survival analysis discovered that high DANCR expression predicted lower OS rate and shorter PFS period. In addition, high DANCR expression was identified as an independent risk factor for poor OS (HR=1.199, 95% CI=1.113–1.290, P<0.001) and PFS (HR=1.199, 95% CI=1.114–1.290, P<0.001) of PDAC. Moreover, in vitro assays detected that the migration and invasion of Panc1 cells with DANCR deficiency were significantly suppressed in the Transwell assay and the Matrigel assay. However, the motility of BxPC3 cells with DANCR overexpression was obviously increased. In addition, the loss of DANCR suppressed the proliferation of Panc1 cells in the CCK-8 assay and the colony formation assay, while ectopic expression of DANCR in BxPC3 cells promoted the proliferation. Besides, microRNA-33a-5p/AXL signaling pathway may be involved in mediating the function of DANCR. Conclusion Overexpression of lncRNA DANCR in PDAC is associated with cancer progression and predicts poor OS and PFS. DANCR could promote the proliferation and metastasis of PDAC cells. DANCR may serve as a potential prognostic marker and therapeutic target in PDAC.
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Affiliation(s)
- Lei Chen
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Jie Liu
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Tong Tang
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Yong-Chuan Zhang
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Ming-Zhong Liu
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Li-Ya Xu
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Jun Zhang
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
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Yang L, Sun K, Chu J, Qu Y, Zhao X, Yin H, Ming L, Wan J, He F. Long non-coding RNA FTH1P3 regulated metastasis and invasion of esophageal squamous cell carcinoma through SP1/NF-kB pathway. Biomed Pharmacother 2018; 106:1570-1577. [PMID: 30119232 DOI: 10.1016/j.biopha.2018.07.129] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 07/18/2018] [Accepted: 07/24/2018] [Indexed: 01/28/2023] Open
Abstract
AIMS:: Recent research showed that Long non-protein coding RNA ferritin heavy chain 1 pseudogene 3 (FTH1P3) plays a crucial role in the course of tumor formation. The present study was aimed to explore its role in esophageal squamous cell carcinoma (ESCC). MAIN METHODS Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) was used to examine the expression levels of FTH1P3, mRNA SP1 and NF-kB in ESCC samples and cell lines. The impact of FTH1P3 knockdown was evaluated by WST-1 assays, colony formation assays, scratch wound assays, migration and invasion assays. KEY FINDINGS FTH1P3 was significantly upregulated in ESCC tissues and cells (P < 0.001). Knockdown of FTH1P3 notably decreased the proliferation, migration, and invasion capacity of ESCC cells. Silencing of FTH1P3 decreased the expression of specificity protein 1 (Sp1) and NF-kB (p65) in EC9706 and EC1. SIGNIFICANCE FTH1P3 plays a crucial role in ESCC tumorigenesis, and can be used as a potential therapeutic target for ESCC.
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Affiliation(s)
- Lijun Yang
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Kaiyan Sun
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Jie Chu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Yunhui Qu
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Xue Zhao
- Institute of Medical and Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Huiqing Yin
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Liang Ming
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Junhu Wan
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
| | - Fucheng He
- Department of Medical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan Province, China.
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Gao H, Gong N, Ma Z, Miao X, Chen J, Cao Y, Zhang G. LncRNA ZEB2-AS1 promotes pancreatic cancer cell growth and invasion through regulating the miR-204/HMGB1 axis. Int J Biol Macromol 2018; 116:545-551. [PMID: 29753015 DOI: 10.1016/j.ijbiomac.2018.05.044] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 05/01/2018] [Accepted: 05/08/2018] [Indexed: 01/07/2023]
Abstract
Recently, lncRNA ZEB2-AS1 was identified as a lncRNA that promoted cancer progression. However, the biological function and the underlying mechanism of ZEB2-AS1 in pancreatic cancer had not been reported. In the current study, we revealed that the expression level of ZEB2-AS1 was elevated in pancreatic cancer cell lines and tissues. ZEB2-AS1 inhibition decreased cell growth and invasion in pancreatic cancer. Mechanismly, ZEB2-AS1 exerted as a ceRNA and negatively regulated miR-204 expression. In addition, HMGB1 was identified as a down-stream target of miR-204. The miR-204/HMGB1 axis mediated ZEB2-AS1's effect on pancreatic cancer. Our findings revealed that lncRNA ZEB2-AS1 may be a candidate prognostic biomarker and a target for new therapies in pancreatic cancer patients.
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Affiliation(s)
- Hai Gao
- Health and Human Service Department, Xiamen Xianyue Hospital, Xiamen, China; Affiliated Xianyue Hospital of Xiamen Medical College, Xiamen Medical College, Xiamen, China
| | - Nana Gong
- Department of Laboratory, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Zebin Ma
- Second of Clinic Medicine, Guangzhou University of ChineseMedicine, Guangzhou, China
| | - Xiaobo Miao
- Department of Chemo- and Radiation Oncology, NO.2 Hospital of Ningbo, Zhejiang, China
| | - Jinchun Chen
- Department of Rheumatism and Immunology, Affiliated Xiamen Hospital of Traditional Chinese Medicine, Fujian University of Traditional Chinese Medicine, Fujian, China.
| | - Yan Cao
- Department of Emergency Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Hunan, China.
| | - Gong Zhang
- Department of Radiotherapy, People's Hospital of Shanxi Province, Taiyuan, China.
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Xiang S, Zou P, Tang Q, Zheng F, Wu J, Chen Z, Hann SS. HOTAIR-mediated reciprocal regulation of EZH2 and DNMT1 contribute to polyphyllin I-inhibited growth of castration-resistant prostate cancer cells in vitro and in vivo. Biochim Biophys Acta Gen Subj 2017; 1862:589-599. [PMID: 29221985 DOI: 10.1016/j.bbagen.2017.12.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/27/2017] [Accepted: 12/04/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND Polyphyllin I (PPI), one of the steroidal saponins in paris polyphylla, has been reported to exhibit antitumor effects. However, the detailed molecular mechanism underlying this has not been elucidated. METHODS Cell viability and cell cycle distribution were measured using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and Flow cytometry assays, respectively. Cell invasion and migration were examined by Transwell invasion and wound healing assays. Western blot analysis was performed to examine the protein expressions of zeste homolog 2 (EZH2), DNA methyltransferase 1 (DNMT1). QRT-PCR was used to examine the levels of long non-coding RNA (lncRNA) HOX transcript antisense RNA (HOTAIR). Small interfering RNAs (siRNAs) method was used to knockdown HOTAIR. Exogenously expressions of HOTAIR, DNMT1 and EZH2 were carried out by Transient transfection assays. EZH2 promoter activity was measured by Secrete-Pair Dual Luminescence Assay Kit. A nude mice xenograft model was used to confirm the findings in vitro. RESULTS We showed that PPI significantly inhibited growth, induced cell cycle arrest of castration-resistant prostate cancer (CRPC) cells. In addition, PPI also reduced the migration and invasion in CRPC cells. In mechanism, we found that PPI decreased the protein expressions of EZH2, DNMT1 and levels of HOTAIR. Interestingly, silenced HOTAIR reduced EZH2 and DNMT1 protein expressions. On the contrary, exogenously expressed HOTAIR resisted PPI-inhibited EZH2 and DNMT1 protein expressions, EZH2 promoter activity and cell growth. Moreover, excessive EZH2 antagonized PPI-suppressed DNMT1 protein expression or vice versa. Consistent with this, PPI inhibited tumor growth, HOTAIR, the protein expressions of DNMT1 and EZH2 in vivo. CONCLUSION Our results show that PPI inhibits growth of CRPC cells through inhibition of HOTAIR expression, subsequently; this results in the repression of DNMT1 and EZH2 expressions. The interactions among HOTAIR, DNMT1 and EZH2, and reciprocal regulation of DNMT1 and EZH2 contribute to the overall responses of PPI. This study reveals a novel mechanism for HOTAIR-mediated regulating DNMT1 and EZH2 in response to PPI in inhibition of the growth of CRPC cells.
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Affiliation(s)
- SongTao Xiang
- Department of Urology Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - PeiLiang Zou
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China; Department of Urology Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Qing Tang
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Fang Zheng
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - JingJing Wu
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - ZhiQiang Chen
- Department of Urology Surgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China
| | - Swei Sunny Hann
- Laboratory of Tumor Biology, Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical Medical Collage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province 510120, China.
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