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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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52
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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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53
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Yu Z, Zeng J, Liu H, Wang T, Yu Z, Chen J. Role of HDAC1 in the progression of gastric cancer and the correlation with lncRNAs. Oncol Lett 2019; 17:3296-3304. [PMID: 30867763 PMCID: PMC6396103 DOI: 10.3892/ol.2019.9962] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 09/03/2018] [Indexed: 01/04/2023] Open
Abstract
Gastric cancer (GC) is a common life-threatening cancer type worldwide, with an increasing prevalence and a high rate of mortality. Due to limitations in clinical treatment, surgery has become the most efficient strategy for the treatment of GC. It is urgent to identify novel biomarkers, which are useful for the diagnosis of GC and for improving the survival rate of patients with GC. HDACs are multi-functional proteins and are involved in regulating gene expression, cell proliferation and the epigenetic regulation. However, the precise role of HDACs in the progression of GC remains unknown. The present study demonstrated that HDAC1 is involved in the promotion of GC cell proliferation, possibly by upregulating the expression of the lncRNAs, BC01600 and AF116637, in the tissues of patients with GC. Abnormal expression profiles of lncRNAs were observed in the tissues of patients with GC. lncRNAs were analyzed in the GSE64951 and GSE19826 databases, and it was revealed that BC01600 and AF116637 were two typically upregulated lncRNAs. Furthermore, it was revealed that BC01600 and AF116637 are regulated by HDAC1, as evidenced by decreased expression of these two lncRNAs in HDAC1-knockout SC-M1 cell lines, and by reduced expression of HDAC1 in these two lncRNA-knockout SC-M1 cell lines. Silencing of HDAC1 decreased the proliferation and increased the apoptosis of SC-M1 cell lines, but had no effect on the migration of the SC-M1 cell lines. The present study provided evidence of the importance of HDAC1 in the progression of SC-M1, and the association between HDAC1 and the expression of lncRNAs. The results of the present study indicated that HDAC1 may be a promising target for the clinical treatment of GC.
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Affiliation(s)
- Zhiqiang Yu
- Department of Gastroenterology, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Jun Zeng
- Department of Gastroenterology, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Hui Liu
- Department of Gastroenterology, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Tian Wang
- Department of Gastroenterology, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Ziqi Yu
- Department of Gastroenterology, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Jianyong Chen
- Department of Gastroenterology, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
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54
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Hui B, Xu Y, Zhao B, Ji H, Ma Z, Xu S, He Z, Wang K, Lu J. Overexpressed long noncoding RNA TUG1 affects the cell cycle, proliferation, and apoptosis of pancreatic cancer partly through suppressing RND3 and MT2A. Onco Targets Ther 2019; 12:1043-1057. [PMID: 30787623 PMCID: PMC6368419 DOI: 10.2147/ott.s188396] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) are involved in various human diseases, including cancers. However, their mechanisms remain undocumented. We investigated alterations in lncRNA that may be related to pancreatic cancer (PC) through analysis of microarray data. Methods In the present study, quantitative real-time PCR analysis was used to examine the expression of taurine upregulated 1 (TUG1) in PC tissue samples and PC cell lines. In PC cell lines, MTT assays, colony formation assays, and flow cytometry were used to investigate the effects of TUG1 on proliferation, cell cycle regulation, and apoptosis. Moreover, we established a xenograft model to assess the effect of TUG1 on tumor growth in vivo. The molecular mechanism of potential target genes was detected through nuclear separation experiments, RNA immunoprecipitation (RIP), chromatin immunoprecipitation assays (ChIP), and other experimental methods. Results The findings suggest that the abnormally high expression of TUG1 in PC tissues was associated with tumor size and pathological stage. Knockdown of TUG1 blocked the cell cycle and accelerated apoptosis, thereby inhibiting the proliferation of PC cells. In addition, RIP experiments showed that TUG1 can recruit enhancer of zeste homolog 2 (EZH2) to the promoter regions of Rho family GTPase 3 (RND3) and metallothionein 2A (MT2A) and inhibit their expression at the transcriptional level. Furthermore, ChIP experiments demonstrated that EZH2 could bind to the promoter regions of RND3 and MT2A. The knockdown of TUG1 reduced this binding capacity. Conclusion In conclusion, our data suggest that TUG1 may regulate the expression of PC-associated tumor suppressor genes at the transcriptional level and these may become potential targets for the diagnosis and treatment of PC.
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Affiliation(s)
- Bingqing Hui
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, China, .,Department of Oncology, Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, China,
| | - Yetao Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu, China
| | - Benpeng Zhao
- Basic Medicine Faculty of Shanghai Jiaotong University, Core Facility of Basic Medical Sciences, Shanghai 200000, China
| | - Hao Ji
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, China, .,Department of Oncology, Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, China,
| | - Zhonghua Ma
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, China, .,Department of Oncology, Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, China,
| | - Shufen Xu
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, China, .,Department of Oncology, Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, China,
| | - ZhenYu He
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, China, .,Department of General Surgery, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, China
| | - Keming Wang
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing 210000, Jiangsu, China, .,Department of Oncology, Second Clinical Medical College of Nanjing Medical University, Nanjing 210000, Jiangsu, China,
| | - Jianwei Lu
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing 210000, Jiangsu, China,
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Xiong X, Shi Q, Yang X, Wang W, Tao J. LINC00052 functions as a tumor suppressor through negatively modulating miR‐330‐3p in pancreatic cancer. J Cell Physiol 2019; 234:15619-15626. [PMID: 30712321 DOI: 10.1002/jcp.28209] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 12/29/2018] [Accepted: 01/10/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Xingcheng Xiong
- Department of Pancreatic Surgery Renmin Hospital of Wuhan University Wuhan Hubei China
| | - Qiao Shi
- Department of Pancreatic Surgery Renmin Hospital of Wuhan University Wuhan Hubei China
| | - Xiaojia Yang
- Department of General Surgery Renmin Hospital of Wuhan University Wuhan Hubei China
| | - Weixing Wang
- Department of General Surgery Renmin Hospital of Wuhan University Wuhan Hubei China
| | - Jing Tao
- Department of Pancreatic Surgery Renmin Hospital of Wuhan University Wuhan Hubei China
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56
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Chen S, Chen JZ, Zhang JQ, Chen HX, Qiu FN, Yan ML, Tian YF, Peng CH, Shen BY, Chen YL, Wang YD. Silencing of long noncoding RNA LINC00958 prevents tumor initiation of pancreatic cancer by acting as a sponge of microRNA-330-5p to down-regulate PAX8. Cancer Lett 2019; 446:49-61. [PMID: 30639194 DOI: 10.1016/j.canlet.2018.12.017] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/13/2018] [Accepted: 12/16/2018] [Indexed: 12/20/2022]
Abstract
Pancreatic cancer (PC) represents a relatively rare but severe malignancy worldwide. Accumulated studies have emphasized the potential of long noncoding RNA (lncRNA) as therapeutic strategies for several human cancers. Thus, we aimed to investigate whether a novel non-coding RNA regulatory circuitry involved in PC. Aberrantly expressed lncRNAs and mRNAs were screened out of microarray database. Following the determination of RNA expression, PANC-1 and BxPC-3 PC cells were adopted, after which the expression of miR-330-5p, PAX8 and LINC00958 were subsequently altered. RNA crosstalk was validated by dual-luciferase reporter gene assay. In order to detect whether LINC00958 could act as ceRNA to competitively sponge miR-330-5p and regulate PAX8, subcellular location of LINC00958 and interaction between LINC00958 and miR-330-5p were measured by FISH and RNA pull down respectively. The epithelial mesenchymal transition (EMT) process, cell invasion, and tumor growth were determined in vitro and in vivo. LINC00958 and PAX8 were up-regulated, while miR-330-5p was down-regulated during PC. LINC00958 mainly expressed in the cytoplasm and LINC00958 competitively sponged miR-330-5p. Upregulated miR-330-5p or downregulated PAX8 inhibited the EMT process as well as the invasion and metastasis ability of the PC cells. Moreover, the results indicated that miR-330-5p negatively targeted PAX8, and LINC00958 ultimately showcasing its ability to bind to miR-330-5p through its interaction with AGO2. Therefore, silencing of LINC00958 may bind to miR-330-5p to inhibit PAX8 in a competitive fashion, thereby preventing the progression of PC.
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Affiliation(s)
- Shi Chen
- Department of Hepatobiliary Surgery, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, 350001, PR China; Pancreatic Disease Center, Department of General Surgery, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, PR China
| | - Jiang-Zhi Chen
- Department of Hepatobiliary Surgery, Union Hospital, Fujian Medical University, Fuzhou, 350001, PR China
| | - Jia-Qiang Zhang
- Pancreatic Disease Center, Department of General Surgery, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, PR China
| | - Hui-Xing Chen
- Department of Hepatobiliary Surgery, Union Hospital, Fujian Medical University, Fuzhou, 350001, PR China
| | - Fu-Nan Qiu
- Department of Hepatobiliary Surgery, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, 350001, PR China
| | - Mao-Lin Yan
- Department of Hepatobiliary Surgery, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, 350001, PR China
| | - Yi-Feng Tian
- Department of Hepatobiliary Surgery, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, 350001, PR China
| | - Cheng-Hong Peng
- Pancreatic Disease Center, Department of General Surgery, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, PR China
| | - Bai-Yong Shen
- Pancreatic Disease Center, Department of General Surgery, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, PR China.
| | - Yan-Ling Chen
- Department of Hepatobiliary Surgery, Union Hospital, Fujian Medical University, Fuzhou, 350001, PR China.
| | - Yao-Dong Wang
- Department of Hepatobiliary Surgery, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, 350001, PR China.
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57
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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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Deng SJ, Chen HY, Zeng Z, Deng S, Zhu S, Ye Z, He C, Liu ML, Huang K, Zhong JX, Xu FY, Li Q, Liu Y, Wang C, Zhao G. Nutrient Stress-Dysregulated Antisense lncRNA GLS-AS Impairs GLS-Mediated Metabolism and Represses Pancreatic Cancer Progression. Cancer Res 2018; 79:1398-1412. [PMID: 30563888 DOI: 10.1158/0008-5472.can-18-0419] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 09/25/2018] [Accepted: 12/14/2018] [Indexed: 02/05/2023]
Abstract
Cancer cells are known to undergo metabolic reprogramming, such as glycolysis and glutamine addiction, to sustain rapid proliferation and metastasis. It remains undefined whether long noncoding RNAs (lncRNA) coordinate the metabolic switch in pancreatic cancer. Here we identify a nuclear-enriched antisense lncRNA of glutaminase (GLS-AS) as a critical regulator involved in pancreatic cancer metabolism. GLS-AS was downregulated in pancreatic cancer tissues compared with noncancerous peritumor tissues. Depletion of GLS-AS promoted proliferation and invasion of pancreatic cancer cells both in vitro and in xenograft tumors of nude mice. GLS-AS inhibited GLS expression at the posttranscriptional level via formation of double stranded RNA with GLS pre-mRNA through ADAR/Dicer-dependent RNA interference. GLS-AS expression was transcriptionally downregulated by nutrient stress-induced Myc. Conversely, GLS-AS decreased Myc expression by impairing the GLS-mediated stability of Myc protein. These results imply a reciprocal feedback loop wherein Myc and GLS-AS regulate GLS overexpression during nutrient stress. Ectopic overexpression of GLS-AS inhibited proliferation and invasion of pancreatic cancer cells by repressing the Myc/GLS pathway. Moreover, expression of GLS-AS and GLS was inversely correlated in clinical samples of pancreatic cancer, while low expression of GLS-AS was associated with poor clinical outcomes. Collectively, our study implicates a novel lncRNA-mediated Myc/GLS pathway, which may serve as a metabolic target for pancreatic cancer therapy, and advances our understanding of the coupling role of lncRNA in nutrition stress and tumorigenesis.Significance: These findings show that lncRNA GLS-AS mediates a feedback loop of Myc and GLS, providing a potential therapeutic target for metabolic reprogramming in pancreatic cancer.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/7/1398/F1.large.jpg.See related commentary by Mafra and Dias, p. 1302.
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Affiliation(s)
- Shi-Jiang Deng
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng-Yu Chen
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhu Zeng
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shichang Deng
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuai Zhu
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zeng Ye
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chi He
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming-Liang Liu
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kang Huang
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian-Xin Zhong
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng-Yu Xu
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiang Li
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Liu
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chunyou Wang
- Deparment of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gang Zhao
- Department of Emergency Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Wang W, Zhan L, Guo D, Xiang Y, Zhang Y, Tian M, Han Z. Transcriptome analysis of pancreatic cancer cell response to treatment with grape seed proanthocyanidins. Oncol Lett 2018; 17:1741-1749. [PMID: 30675233 PMCID: PMC6341838 DOI: 10.3892/ol.2018.9807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 10/25/2018] [Indexed: 01/09/2023] Open
Abstract
Grape seed proanthocyanidins (GSPs) have been demonstrated to exhibit potential chemotherapeutic efficacy against various cancer types. To determine the underlying molecular mechanisms involved in GSP-induced apoptosis, the present study prepared pancreatic cancer (PC) cells samples, S3, S12 and S24, which were treated with 20 µg/ml GSPs for 3, 12 and 24 h, respectively. Control cell samples, C3, C12 and C24, were also prepared. Using RNA-sequencing, transcriptome comparisons were performed, which identified 966, 3,543 and 4,944 differentially-expressed genes (DEGs) in S3 vs. C3, S12 vs. C12 and S24 vs. C24, respectively. Gene Ontology analysis of the DEGs, revealed that treatment with GSPs is associated with disruption of the cell cycle (CC) in PC cells. Additionally, disruption of transcription, DNA replication and DNA repair were associated with GSP-treatment in PC cells. Network analysis demonstrated that the common DEGs involved in the CC, transcription, DNA replication and DNA repair were integrated, and served essential roles in the control of CC progression in cancer cells. In summary, GSPs may exhibit a potential chemotherapeutic effect on PC cell proliferation.
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Affiliation(s)
- Weihua Wang
- Department of Food Science, College of Life Sciences, Tarim University, Alar, Xinjiang 843300, P.R. China.,Xinjiang Production and Construction Corps Key Laboratory of Deep Processing of Agricultural Products in South Xinjiang, Alar, Xinjiang 843300, P.R. China
| | - Leilei Zhan
- Center for Genome Analysis, ABLife Inc., Wuhan, Hubei 430075, P.R. China
| | - Dongqi Guo
- Department of Food Science, College of Life Sciences, Tarim University, Alar, Xinjiang 843300, P.R. China.,Xinjiang Production and Construction Corps Key Laboratory of Deep Processing of Agricultural Products in South Xinjiang, Alar, Xinjiang 843300, P.R. China
| | - Yanju Xiang
- Department of Food Science, College of Life Sciences, Tarim University, Alar, Xinjiang 843300, P.R. China.,Xinjiang Production and Construction Corps Key Laboratory of Deep Processing of Agricultural Products in South Xinjiang, Alar, Xinjiang 843300, P.R. China
| | - Yu Zhang
- Center for Genome Analysis, ABLife Inc., Wuhan, Hubei 430075, P.R. China
| | - Muxing Tian
- Department of Food Science, College of Life Sciences, Tarim University, Alar, Xinjiang 843300, P.R. China.,Xinjiang Production and Construction Corps Key Laboratory of Deep Processing of Agricultural Products in South Xinjiang, Alar, Xinjiang 843300, P.R. China
| | - Zhanjiang Han
- Department of Food Science, College of Life Sciences, Tarim University, Alar, Xinjiang 843300, P.R. China.,Xinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alar, Xinjiang 843300, P.R. China
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An N, Cheng D. The Long Noncoding RNA HOST2 Promotes Gemcitabine Resistance in Human Pancreatic Cancer Cells. Pathol Oncol Res 2018; 26:425-431. [PMID: 30406400 DOI: 10.1007/s12253-018-0486-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 10/09/2018] [Indexed: 12/31/2022]
Abstract
Our study was aimed to identify the fundamental role of lncRNA HOST2 in gemcitabine resistance regulation in human pancreatic cancer cells. The levels of HOST2 in pancreatic cancer cell lines were measured by quantitative real-time PCR (qRT-PCR). Due to high expression and strong gemcitabine resistance, Hs766T and AsPC-1 cell lines were selected to be knockdown the expression of HOST2 by transfection sh-HOST2. After manipulation of HOST2, the cell proliferation induced by gemcitabine was examined by CCK-8 assay. Next, colony formation ability of Hs766T and AsPC-1 cell lines was determined by clone-forming assay. At last, the relationship between HOST2 and cell apoptosis in Hs766T and AsPC-1 cell lines was evaluated by flow cytometry. QRT-PCR revealed that HOST2 was overexpressed in six pancreas neoplasm cell lines compared with normal cell lines HPDE6-C7. HOST2 expression levels in group resistant to gemcitabine were higher than the group sensitive to gemcitabine. Additionally, CCK-8 assay verified that cell proliferation was inhibited by sh-HOST2 with or without gemcitabine treatment. Furthermore, clone-forming assay revealed that colony formation ability was weakened by down-regulated HOST2 with or without gemcitabine treatment. Flow cytometry revealed that cell apoptosis induced by gemcitabine was promoted by sh-HOST2. In conclusion, down-regulated HOST2 inhibited proliferation and promoted apoptosis of pancreas cancer cells with or without gemcitabine treatment. Thus, HOST2 is a potential therapeutic target for gemcitabine chemoresistance in pancreatic neoplasms.
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Affiliation(s)
- Ning An
- Department of Hepatobiliary Surgery, Sichuan Medical Academy &Sichuan People's Hospital, No 32 Western Third Section of First Ring Road, Chengdu, 610072, Sichuan, China
| | - Donghui Cheng
- Department of Hepatobiliary Surgery, Sichuan Medical Academy &Sichuan People's Hospital, No 32 Western Third Section of First Ring Road, Chengdu, 610072, Sichuan, China.
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61
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Li ZY, Sun XY. Molecular targets regulating invasion and metastasis of pancreatic cancer. Shijie Huaren Xiaohua Zazhi 2018; 26:1651-1659. [DOI: 10.11569/wcjd.v26.i28.1651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is one of the most malignant tumors of the digestive system. Invasion and metastasis are important biological characteristics of pancreatic cancer and contribute greatly to the poor prognosis of the patients. Many lines of evidence have recently revealed that many molecules, genes and proteins regulate the invasion and metastasis of pancreatic cancer cells. Therefore, exploration and a deep understanding of the molecular mechanism accounting for the invasion and metastasis of pancreatic cancer can help find novel pancreatic cancer biomarkers, improve early diagnosis, develop novel and effective treatment strategies, and predict the prognosis. This review summarizes the latest progress in the research of molecular targets for pancreatic cancer and the mechanisms by which they participate in the invasion and metastasis of this aggressive malignancy.
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Affiliation(s)
- Zi-Yi Li
- The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
| | - Xue-Ying Sun
- The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
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62
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Zhou J, Liu M, Chen Y, Xu S, Guo Y, Zhao L. Cucurbitacin B suppresses proliferation of pancreatic cancer cells by ceRNA: Effect of miR-146b-5p and lncRNA-AFAP1-AS1. J Cell Physiol 2018; 234:4655-4667. [PMID: 30206930 DOI: 10.1002/jcp.27264] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 07/24/2018] [Indexed: 12/22/2022]
Abstract
Cucurbitacin B (CuB) is a natural tetracyclic triterpene product that displays antitumor activity against a wide variety of cancers. In this study, we explored the antipancreatic cancer activity of CuB via the inhibition of expression of the cancer-related long noncoding RNA, actin filament-associated protein 1-antisense RNA 1 (AFAP1-AS1). CuB arrested pancreatic cancer (PC) cells in the G2/M cell cycle phase by suppressing the expression of AFAP1-AS1. Insights into the mechanisms of competing endogenous RNAs (ceRNAs) gained from bioinformatics analysis and luciferase activity assays showed that the epidermal growth factor receptor (EGFR) and AFAP1-AS1 directly compete for miR-146b-5p binding. CuB-induced high miR-146b-5p expression and inhibited the expression of AFAP1-AS1. In summary, reducing the expression of endogenous AFAP1-AS1 effectively increased the available concentration of miR-146b-5p in PC, whereas miR-146b-5p overexpression prevented the expression of endogenous AFAP1-AS1. In particular, we hypothesized that AFAP1-AS1 might act as a ceRNA, effectively becoming a sponge for miR-146b-5p, thereby activating the expression of the EGFR. Thus, CuB suppresses the proliferation, in vitro and in vivo, of PC cells through the ceRNA effect of AFAP1-AS1 on miR-146b-5p.
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Affiliation(s)
- Jingkai Zhou
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, China
| | - Mei Liu
- Department of Ion Channel Pharmacology, School of Pharmacy, China Medical University, Shenyang, China
| | - Yanan Chen
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, China
| | - Shansen Xu
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yingjie Guo
- National Engineering Laboratory for AIDS Vaccine, Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, School of Life Sciences, Jilin University, Changchun, Jilin
| | - Limei Zhao
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, China
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63
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Zhou B, Guo W, Sun C, Zhang B, Zheng F. Linc00462 promotes pancreatic cancer invasiveness through the miR-665/TGFBR1-TGFBR2/SMAD2/3 pathway. Cell Death Dis 2018; 9:706. [PMID: 29899418 PMCID: PMC5999603 DOI: 10.1038/s41419-018-0724-5] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 05/16/2018] [Accepted: 05/21/2018] [Indexed: 12/31/2022]
Abstract
Emerging evidence has identified that long non-coding RNAs (lncRNAs) may play an important role in the pathogenesis of many cancers, pancreatic cancer (PC) included. However, the role of linc00462 in PC remains unclear. The aim of our present study was to investigate the potential functions of linc00462 in PC and to identify the underlying mechanisms of action. CCK8 assay, transwell assay, cell cycle assay, cell apoptosis assay, EdU assay, western blot assay, cell adhesion assay, HE staining, IF staining, ELISA assay, vivo growth and metastasis assay, and colony formation assay were performed. We demonstrated that OSM mediated up-regulation of linc00462 promoted cell proliferation by accelerating cell cycle process and inhibiting cell apoptosis and adhesion in vitro, enhanced cell migration and invasion by accelerating EMT process, promoted tumor growth and matastasis in vivo and was associated with large tumor size, poor tumor differentiation, TNM stage and distant metastasis in patients of PC. In addition, we demonstrated that linc00462 was a target of miR-665. Linc00462 overexpression enhanced the expression levels of TGFBR1 and TGFBR2, and thus activated the SMAD2/3 pathway in PC cells. In conclusion, linc00462/miR-665/TGFBR1/2 regulatory network may shed light on tumorigenesis in PC.
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Affiliation(s)
- Bin Zhou
- Department of Hepatopacreatobiliary, Affiliated Hospital of Qingdao University, 266003, Qingdao, China
| | - Weidong Guo
- Department of Hepatopacreatobiliary, Affiliated Hospital of Qingdao University, 266003, Qingdao, China
| | - Chuandong Sun
- Department of Hepatopacreatobiliary, Affiliated Hospital of Qingdao University, 266003, Qingdao, China
| | - Bingyuan Zhang
- Department of Hepatopacreatobiliary, Affiliated Hospital of Qingdao University, 266003, Qingdao, China
| | - Fang Zheng
- School of Integrative Medicine, Tianjin Traditional Medical University, 300193, Tianjin, 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: 54] [Impact Index Per Article: 9.0] [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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65
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Sun Z, Zhang B, Cui T. Long non-coding RNA XIST exerts oncogenic functions in pancreatic cancer via miR-34a-5p. Oncol Rep 2018; 39:1591-1600. [PMID: 29393501 PMCID: PMC5868395 DOI: 10.3892/or.2018.6245] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 12/29/2017] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been implicated in the occurrence and progression of multiple cancers. In the present study, we investigated the role of lncRNA X inactive-specific transcript (XIST) in the development and progression of pancreatic cancer (PC). Firstly, we found that lncRNA XIST was markedly upregulated in PC tissues and PC cell lines, respectively. Overexpression of XIST significantly promoted the proliferation, migration and invasion, and suppressed cell apoptosis of BxPC-3 cells; knockdown of XIST significantly inhibited the proliferation, migration and invasion, and accelerated cell apoptosis of PANC-1 cells. Furthermore, BxPC-3 and PANC-1 cells transfected with different vectors were injected subcutaneously into nude mice to explore tumor formation. We found that XIST promoted tumor formation in vivo. Subsequently, we found that microRNA-34a-5p (miR‑34a-5p) was downregulated in PC tissues, and predicted a poor prognosis in PC patients. In addition, the results indicated that miR-34a-5p is a target gene of XIST and was significantly negatively correlated with XIST. More importantly, we found that miR-34a-5p rescued the facilitation of malignant behavior mediated by XIST. These results indicated that XIST and miR-34a-5p may be potential effective therapeutic targets for PC.
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Affiliation(s)
- Zhixia Sun
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130031, P.R. China
| | - Baogang Zhang
- Department of Endoscopy, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130031, P.R. China
| | - Tingting Cui
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130031, P.R. China
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66
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Chen L, Wang Y, He J, Zhang C, Chen J, Shi D. Long Noncoding RNA H19 Promotes Proliferation and Invasion in Human Glioma Cells by Downregulating miR-152. Oncol Res 2018; 26:1419-1428. [PMID: 29422115 PMCID: PMC7844716 DOI: 10.3727/096504018x15178768577951] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
miR-152 and lncRNA H19 have been frequently implicated in various cellular processes including cell proliferation, invasion, angiogenesis, and apoptosis. However, the interaction between miR-152 and H19 in glioma has never been reported. RT-qPCR was used to examine the expression of miR-152 and H19 in human glioma cell lines and normal human astrocytes (NHAs). The interaction between miR-152 and lncRNA H19 was assessed by dual-luciferase reporter assay. MTT assay and Transwell invasion assay were used to determine the proliferation and invasion of U251 and U87 cells. A xenograft tumor experiment was performed to confirm the role of H19 in vivo. The results showed that H19 expression was upregulated and miR-152 expression was downregulated in human glioma cell lines. H19 downregulation or miR-152 upregulation suppressed glioma cell proliferation and invasion in vitro. Moreover, H19 and miR-152 directly regulated each other. Furthermore, decreased miR-152 expression alleviated si-H19-induced inhibitory effects on proliferation and invasion in glioma cells. As expected, H19 silencing hindered glioma growth in vivo. Taken together, H19 promoted glioma cell proliferation and invasion by negatively regulating miR-152 expression, providing evidence for the potential application of H19 as a biomarker and therapy target for glioma.
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Affiliation(s)
- Lei Chen
- Department of Neurosurgery, 101st Hospital of PLA (Wuxi Taihu Hospital), Clinical Medical School of Anhui Medical University, Wuxi, P.R. China
| | - Yuhai Wang
- Department of Neurosurgery, 101st Hospital of PLA (Wuxi Taihu Hospital), Clinical Medical School of Anhui Medical University, Wuxi, P.R. China
| | - Jianqing He
- Department of Neurosurgery, 101st Hospital of PLA (Wuxi Taihu Hospital), Clinical Medical School of Anhui Medical University, Wuxi, P.R. China
| | - Chunlei Zhang
- Department of Neurosurgery, 101st Hospital of PLA (Wuxi Taihu Hospital), Clinical Medical School of Anhui Medical University, Wuxi, P.R. China
| | - Junhui Chen
- Department of Neurosurgery, 101st Hospital of PLA (Wuxi Taihu Hospital), Clinical Medical School of Anhui Medical University, Wuxi, P.R. China
| | - Dongliang Shi
- Department of Neurosurgery, 101st Hospital of PLA (Wuxi Taihu Hospital), Clinical Medical School of Anhui Medical University, Wuxi, P.R. China
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67
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Lian Y, Li Z, Fan Y, Huang Q, Chen J, Liu W, Xiao C, Xu H. The lncRNA-HOXA-AS2/EZH2/LSD1 oncogene complex promotes cell proliferation in pancreatic cancer. Am J Transl Res 2017; 9:5496-5506. [PMID: 29312501 PMCID: PMC5752899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/08/2017] [Indexed: 06/07/2023]
Abstract
Emerging evidence have indicated that long non-coding RNAs (lncRNAs) play crucial roles in cancer development and progression. Previous studies have suggested that lncRNA-HOXA cluster antisense RNA 2 (HOXA-AS2) is involved in tumorigenesis of several cancers. However, little is known about the alteration and biological functions of HOXA-AS2 in pancreatic cancer (PC). The purpose of this study is to identify the role of HOXA-AS2 in PC. Here, we provided evidence that lncRNA HOXA-AS2 was up-regulated in PC tissues. In addition, Loss-of-function experiments revealed that HOXA-AS2 knockdown effectively suppressed proliferation by blocking the cell cycle transition and caused apoptosis of PC cells in vitro and in vivo. Mechanistically, we found that HOXA-AS2 directly interacted with enhancer of zeste homolog 2 (EZH2) and lysine specific demethylase 1 (LSD1), which promoted PC cell growth ability. Collectively, our findings demonstrated that lncRNA-HOXA-AS2/EZH2/LSD1 complex may function as an oncogene in PC cell proliferation, and also provides a potential therapy target for PC.
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Affiliation(s)
- Yifan Lian
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
| | - Zhaohua Li
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
| | - Yanyun Fan
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
| | - Qingwen Huang
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
| | - Jianmin Chen
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
| | - Wenming Liu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
| | - Chuanxing Xiao
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
- Institute for Microbial Ecology, Xiamen UniversityXiamen, People’s Republic of China
| | - Hongzhi Xu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen UniversityXiamen, People’s Republic of China
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68
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Meta-analysis of the clinical value of abnormally expressed long non-coding RNAs for pancreatic cancer. Oncotarget 2017; 8:89149-89159. [PMID: 29179507 PMCID: PMC5687677 DOI: 10.18632/oncotarget.20803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 08/17/2017] [Indexed: 01/11/2023] Open
Abstract
Pancreatic cancer (PC) is one of the most lethal malignant neoplasms of the digestive system. Long non-coding RNAs (lncRNAs) are a novel type of non-protein coding transcripts that play an important role in pancreatic carcinogenesis. We herein aimed to meta-analyze the diagnostic and prognostic significance of lncRNA expression profiles in PC. A comprehensive retrieval of eligible studies was performed based on the online databases. Quantitative meta-analyses of the pooled diagnostic parameters and hazard ratios (HRs) were enabled by using standard statistical methods. A total of 16 studies comprising 1386 PC patients were included. The pooled effect sizes exhibited that lncRNA expression profile achieved a combined sensitivity of 0.82 (95% CI: 0.72-0.89), specificity of 0.77 (95% CI: 0.65-0.86) and AUC (area under curve) of 0.87 (95% CI: 0.83-0.89) in distinguishing patients with PC from noncancerous controls. Notably, abnormally expressed lncRNAs were markedly associated with unfavorable overall survival (OS) in PC (univariate analysis: HR = 1.52, 95% CI: 1.04-2.22, P = 0.031; multivariate analysis: HR = 1.55, 95% CI: 1.19-2.02, P = 0.001). Statistical significance was also observed in our stratified analyses grouped by clinicopathologic features. In conclusion, abnormal lncRNA expression profiles could be rated as promising biomarker(s) to enable diagnosis and predict the prognosis of PC.
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69
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Huang X, Ta N, Zhang Y, Gao Y, Hu R, Deng L, Zhang B, Jiang H, Zheng J. Microarray Analysis of the Expression Profile of Long Non-Coding RNAs Indicates lncRNA RP11-263F15.1 as a Biomarker for Diagnosis and Prognostic Prediction of Pancreatic Ductal Adenocarcinoma. J Cancer 2017; 8:2740-2755. [PMID: 28928863 PMCID: PMC5604206 DOI: 10.7150/jca.18073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/16/2017] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a devastating malignancy with poor prognostic outcomes. Accumulating evidence has demonstrated that long non-coding RNAs (lncRNAs) play an important role in the development and progression of carcinogenesis. Nevertheless, little is known about the role of lncRNAs in PDAC. The aim of the current study was to find differentially expressed lncRNAs and related mRNAs in human PDAC tissues and adjacent normal tissues by microarray analysis, and investigate the relationship between lncRNA RP11-263F15.1 levels and the clinicaopathological features of PDAC patients. It was found that 4364 lncRNAs and 4862 related mRNAs were significantly dysregulated in PDAC tissues as compared with adjacent normal tissues with a fold change ≥2.0 (P<0.05). GO and pathway analyses showed that the up-regulated gene profiles were related to several pathways associated with carcinogenesis, while the down-regulated gene profiles were closely correlated with nutrient metabolism. RP11-263F15.1 levels were associated with histologic differentiation (P=0.001). Besides, Kaplan-Meier analysis showed that high expression of RP11-263F15.1 was associated with poor outcomes, but multivariate analysis suggested that RP11-263F15.1 was not an independent factor for predicting prognosis of PDAC. In conclusion, these data indicate that differentially expressed lncRNAs and mRNAs were involved in the carcinogenesis of PDAC, and RP11-263F15.1 may prove to be a potential biomarker for the diagnosis and prognostic prediction of PDAC.
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Affiliation(s)
- Xiaoyi Huang
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Na Ta
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Yunshuo Zhang
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Yisha Gao
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Ronglei Hu
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Lulu Deng
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Bingbing Zhang
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Hui Jiang
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Jianming Zheng
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
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70
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Wang CJ, Shi SB, Tian J, Xu J, Niu ZX. lncRNA MALAT1, HOTTIP and PVT1 as predictors for predicting the efficacy of GEM based chemotherapy in first-line treatment of pancreatic cancer patients. Oncotarget 2017; 8:95108-95115. [PMID: 29221115 PMCID: PMC5707009 DOI: 10.18632/oncotarget.19345] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 06/20/2017] [Indexed: 01/06/2023] Open
Abstract
This study evaluated the lnc-RNAs as biomarker to predict efficacy of gemcitabine (GEM) based chemotherapy as the first-line treatment for locally advanced or advanced pancreatic cancer patients. We selected 62 patients with GEM based chemotherapy and divided two groups according to the PFS. We found that the expression of MALAT1, HOTTIP, and PVT1 in serum had a significant difference among the two groups. Furthermore, we estimated the PFS and response rate based on the expression levels of MALAT1, HOTTIP and PVT1. The response rate of two groups showed a significant difference according to the expression levels of MALAT1, HOTTIP and PVT1. Based on the expression levels of MALAT1, HOTTIP and PVT1, the response rate of high expression of PVT1 and low expression of PVT1 was respectively 14.8% and 37.1% and 18.2% (high HOTTIP group) and 37.9% (low HOTTIP group), 10.7%(high MALAT1 group) and 41.1% (low MALAT1 group). The PFS of patients with high and low expression levels PVT1 was 2.6 months and 4.0 months (p<0.001), respectively. The PFS of patients with high and low expression levels of HOTTIP was 2.7 months and 4.1 months (p<0.001), respectively, and the PFS of patients with high and low expression levels of MALAT1 was 3.0 months and 3.7 months (P=0.026), respectively. The results suggest that MALAT1, HOTTIP and PVT1 as predictors to predict the efficacy of GEM based chemotherapy in first-line treatment of pancreatic cancer patients.
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Affiliation(s)
- Cui-Juan Wang
- Shandong University of Traditional Chinese Medicine, Jinan, P.R. China.,Central Laboratory, Shandong Academy of Occupational Health Medicine, Jinan, P.R. China
| | - Sheng-Bin Shi
- Department of Medical Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, P.R. China
| | - Jing Tian
- Department of Medical Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, P.R. China
| | - Jun Xu
- Department of Medical Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, P.R. China
| | - Zuo-Xing Niu
- Department of Medical Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, P.R. China
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Bhan A, Soleimani M, Mandal SS. Long Noncoding RNA and Cancer: A New Paradigm. Cancer Res 2017; 77:3965-3981. [PMID: 28701486 DOI: 10.1158/0008-5472.can-16-2634] [Citation(s) in RCA: 1926] [Impact Index Per Article: 275.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 04/05/2017] [Accepted: 05/04/2017] [Indexed: 12/11/2022]
Abstract
In addition to mutations or aberrant expression in the protein-coding genes, mutations and misregulation of noncoding RNAs, in particular long noncoding RNAs (lncRNA), appear to play major roles in cancer. Genome-wide association studies of tumor samples have identified a large number of lncRNAs associated with various types of cancer. Alterations in lncRNA expression and their mutations promote tumorigenesis and metastasis. LncRNAs may exhibit tumor-suppressive and -promoting (oncogenic) functions. Because of their genome-wide expression patterns in a variety of tissues and their tissue-specific expression characteristics, lncRNAs hold strong promise as novel biomarkers and therapeutic targets for cancer. In this article, we have reviewed the emerging functions and association of lncRNAs in different types of cancer and discussed their potential implications in cancer diagnosis and therapy. Cancer Res; 77(15); 3965-81. ©2017 AACR.
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Affiliation(s)
- Arunoday Bhan
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas
| | - Milad Soleimani
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas
| | - Subhrangsu S Mandal
- Gene Regulation and Epigenetics Research Lab, Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas.
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Xiao J, Yu H. Gemcitabine Conjugated Chitosan and Double Antibodies (Abc-GC-Gemcitabine Nanoparticles) Enhanced Cytoplasmic Uptake of Gemcitabine and Inhibit Proliferation and Metastasis In Human SW1990 Pancreatic Cancer Cells. Med Sci Monit 2017; 23:1613-1620. [PMID: 28366930 PMCID: PMC5388304 DOI: 10.12659/msm.901292] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Pancreatic cancer is considered a chemoresistant neoplasm with extremely dismal prognosis and gemcitabine treatment is associated with many side effects and poor overall survival. The study aimed at developing a new nanobioconjugate, which specifically delivered gemcitabine and anti-EGFR antibody into pancreatic cancer cells. MATERIAL AND METHODS The novel nanodrug is based on chitosan platform, which is non-toxic, biocompatibility and biodegradable. We measured the effects of proliferation and metastasis on SW1990 by CCK-8 assay, colony formation assay, wound healing assay and Transwell assay. The expression of related proteins were evaluated by Western blot. RESULTS We synthesized Abc-GC-gemcitabine nanoparticles successfully with the encapsulation rate of nanobioconjugates was 91.63% and the drug loadings was 9.97%. Both GC-gemcitabine microspheres solution (GC group) and Abc-GC-gemcitabine microspheres solution (Abc group) inhibited cells proliferation, colony formation, migration and invasion in SW1990 cells dramatically. Moreover, Abc-GC-gemcitabine microspheres expressed more significant inhibited action than GC-gemcitabine microspheres efficiently CONCLUSIONS Our data suggested that Abc-GC-gemcitabine nanoparticles could have promising potential in treating metastasized and chemoresistant pancreatic cancer by enhancing the drug efficacy and minimizing off target effects.
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Affiliation(s)
- Jun Xiao
- Department of Surgery, Wenzhou Central Hospital, Wenzhou, Zhejiang, China (mainland)
| | - Haibo Yu
- Department of Surgery, Wenzhou Central Hospital, Wenzhou, Zhejiang, China (mainland)
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73
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Zhou B, Xu JW, Cheng YG, Gao JY, Hu SY, Wang L, Zhan HX. Early detection of pancreatic cancer: Where are we now and where are we going? Int J Cancer 2017; 141:231-241. [PMID: 28240774 DOI: 10.1002/ijc.30670] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/25/2017] [Accepted: 02/20/2017] [Indexed: 12/11/2022]
Abstract
Pancreatic cancer (PC) is one of the most lethal malignancies. Recent studies indicate that patients with incidentally diagnosed PC have better prognosis than those with symptoms and that there is a sufficient window for early detection. However, effective early diagnosis remains difficult and depends mainly on imaging modalities and the development of screening methodologies with highly sensitive and specific biomarkers. This review summarizes recent advances in effective screening for early diagnosis of PC using imaging modalities and novel molecular biomarkers discovered from various "omics" studies including genomics, epigenomics, non-coding RNA, metabonomics, liquid biopsy (CTC, ctDNA and exosomes) and microbiomes, and their use in body fluids (feces, urine and saliva). Although many biomarkers for early detection of PC have been discovered through various methods, larger scale and rigorous validation is required before their application in the clinic. In addition, more effective and specific biomarkers of PC are urgently needed.
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Affiliation(s)
- Bin Zhou
- Department of Hepatopancreatobiliary Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China
| | - Jian-Wei Xu
- Department of General Surgery, Qilu hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Yu-Gang Cheng
- Department of General Surgery, Qilu hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Jing-Yue Gao
- Department of Basic Medicine, Medical College of Shandong University, Jinan, 250012, China
| | - San-Yuan Hu
- Department of General Surgery, Qilu hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Lei Wang
- Department of General Surgery, Qilu hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Han-Xiang Zhan
- Department of General Surgery, Qilu hospital, Shandong University, Jinan, Shandong Province, 250012, China
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74
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The underlying mechanisms of non-coding RNAs in the chemoresistance of pancreatic cancer. Cancer Lett 2017; 397:94-102. [PMID: 28254409 DOI: 10.1016/j.canlet.2017.02.020] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/08/2017] [Accepted: 02/21/2017] [Indexed: 12/21/2022]
Abstract
Pancreatic cancer, which is often asymptomatic, is currently one of the most common causes of cancer-related death. This phenomenon is most likely due to a lack of early diagnosis, a high metastasis rate and a disappointing chemotherapy outcome. Thus, improving treatment outcomes by overcoming chemotherapy resistance may be a useful strategy in pancreatic cancer. Various underlying mechanisms involved in the chemoresistance of pancreatic cancer have been investigated. Notably, non-coding RNAs (ncRNAs), especially microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), play a pivotal role in regulating sensitivity to chemotherapy in pancreatic cancer. In this review, we highlight recent evidence regarding the role of miRNAs and lncRNAs in the chemoresistance of pancreatic cancer, including their expression levels, targets, biological functions and the regulation of chemoresistance, and discuss the potential clinical application of miRNAs and lncRNAs in the treatment of pancreatic cancer.
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75
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Johnson GS, Li J, Beaver LM, Dashwood WM, Sun D, Rajendran P, Williams DE, Ho E, Dashwood RH. A functional pseudogene, NMRAL2P, is regulated by Nrf2 and serves as a coactivator of NQO1 in sulforaphane-treated colon cancer cells. Mol Nutr Food Res 2017; 61. [PMID: 27860235 DOI: 10.1002/mnfr.201600769] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/11/2016] [Accepted: 11/11/2016] [Indexed: 12/13/2022]
Abstract
SCOPE The anticancer agent sulforaphane (SFN) acts via multiple mechanisms to modulate gene expression, including the induction of nuclear factor (erythroid-derived 2)-like 2 (Nrf2)-dependent signaling and the inhibition of histone deacetylase activity. Transcriptomics studies were performed in SFN-treated human colon cancer cells and in nontransformed colonic epithelial cells in order to pursue new mechanistic leads. METHODS AND RESULTS RNA-sequencing corroborated the expected changes in cancer-related pathways after SFN treatment. In addition to NAD(P)H quinone dehydrogenase 1 (NQO1) and other well-known Nrf2-dependent targets, SFN strongly induced the expression of Loc344887. This noncoding RNA was confirmed as a novel functional pseudogene for NmrA-like redox sensor 1, and was given the name NmrA-like redox sensor 2 pseudogene (NMRAL2P). Chromatin immunoprecipitation experiments corroborated the presence of Nrf2 interactions on the NMRAL2P genomic region, and interestingly, NMRAL2P also served as a coregulator of NQO1 in human colon cancer cells. Silencing of NMRAL2P via CRISPR/Cas9 genome-editing protected against SFN-mediated inhibition of cancer cell growth, colony formation, and migration. CONCLUSION NMRAL2P is the first functional pseudogene to be identified both as a direct transcriptional target of Nrf2, and as a downstream regulator of Nrf2-dependent NQO1 induction. Further studies are warranted on NMRAL2P-Nrf2 crosstalk and the associated mechanisms of gene regulation.
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Affiliation(s)
- Gavin S Johnson
- Center for Epigenetics & Disease Prevention, Institute of Biosciences & Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Jia Li
- Center for Epigenetics & Disease Prevention, Institute of Biosciences & Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Laura M Beaver
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA.,School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - W Mohaiza Dashwood
- Center for Epigenetics & Disease Prevention, Institute of Biosciences & Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Deqiang Sun
- Center for Epigenetics & Disease Prevention, Institute of Biosciences & Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Praveen Rajendran
- Center for Epigenetics & Disease Prevention, Institute of Biosciences & Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - David E Williams
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA.,Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Emily Ho
- Linus Pauling Institute, Oregon State University, Corvallis, OR, USA.,School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, USA
| | - Roderick H Dashwood
- Center for Epigenetics & Disease Prevention, Institute of Biosciences & Technology, Texas A&M Health Science Center, Houston, TX, USA.,Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Nutrition and Food Science, Texas A&M University, College Station, TX, USA.,Department of Molecular and Cellular Medicine, Texas A&M College of Medicine, College Station, TX, USA
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