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Yang W, Zhang K, Li L, Ma K, Hong B, Gong Y, Gong K. Discovery and validation of the prognostic value of the lncRNAs encoding snoRNAs in patients with clear cell renal cell carcinoma. Aging (Albany NY) 2020; 12:4424-4444. [PMID: 32126023 PMCID: PMC7093172 DOI: 10.18632/aging.102894] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/25/2020] [Indexed: 12/11/2022]
Abstract
Some lncRNAs can encode small nucleolar RNAs (snoRNAs), called small nucleolar RNA host genes (SNHGs), which have exerted certain predictive values for the prognosis of some cancer patients. In this study, using RNA-seq and survival data in TCGA-KIRC, we examined the expression profile of 20 SNHGs and explored their prognostic values in ccRCC. Results showed that SNHG1, GAS5, SNHG3-8, SNHG11, SNHG12, SNHG15-17, SNHG20, SNHG22 and SNHG25 were significantly upregulated in ccRCC tissues compared with adjacent normal tissues. After adjustment for confounding factors, the multivariate analysis confirmed that increased SNHG3 expression was independently associated with shorter OS, while increased SNHG15 expression was an independent predictor of shorter RFS. Using the methylation data, the methylation status of 2 CpG sites (cg07807470 and cg15161854) and 2 CpG sites (cg00953154 and cg16459265) were negatively correlated with SNHG3 and SNHG15 expression, respectively. Moreover, low methylation levels of the 4 CpG sites were significantly associated with shorter OS. Furthermore, we validated the expression patterns, methylation status and prognostic value of SNHG3 and SNHG15 using clinical ccRCC samples. Taken together, SNHG3 and SNHG15 might be valuable prognostic markers in ccRCC, and DNA hypomethylation might play an important role in elevated SNHG3 and SNHG15 transcription in ccRCC.
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Affiliation(s)
- Wuping Yang
- Department of Urology, Peking University First Hospital, Beijing 100034, P.R. China.,Hereditary Kidney Cancer Research Center, Peking University First Hospital, Beijing 100034, P.R. China.,Institute of Urology, Peking University, Beijing 100034, P.R. China.,National Urological Cancer Center, Beijing 100034, P.R. China
| | - Kenan Zhang
- Department of Urology, Peking University First Hospital, Beijing 100034, P.R. China.,Hereditary Kidney Cancer Research Center, Peking University First Hospital, Beijing 100034, P.R. China.,Institute of Urology, Peking University, Beijing 100034, P.R. China.,National Urological Cancer Center, Beijing 100034, P.R. China
| | - Lei Li
- Department of Urology, Peking University First Hospital, Beijing 100034, P.R. China.,Hereditary Kidney Cancer Research Center, Peking University First Hospital, Beijing 100034, P.R. China.,Institute of Urology, Peking University, Beijing 100034, P.R. China.,National Urological Cancer Center, Beijing 100034, P.R. China
| | - Kaifang Ma
- Department of Urology, Peking University First Hospital, Beijing 100034, P.R. China.,Hereditary Kidney Cancer Research Center, Peking University First Hospital, Beijing 100034, P.R. China.,Institute of Urology, Peking University, Beijing 100034, P.R. China.,National Urological Cancer Center, Beijing 100034, P.R. China
| | - Baoan Hong
- Department of Urology, Peking University First Hospital, Beijing 100034, P.R. China.,Hereditary Kidney Cancer Research Center, Peking University First Hospital, Beijing 100034, P.R. China.,Institute of Urology, Peking University, Beijing 100034, P.R. China.,National Urological Cancer Center, Beijing 100034, P.R. China
| | - Yanqing Gong
- Department of Urology, Peking University First Hospital, Beijing 100034, P.R. China.,Hereditary Kidney Cancer Research Center, Peking University First Hospital, Beijing 100034, P.R. China.,Institute of Urology, Peking University, Beijing 100034, P.R. China.,National Urological Cancer Center, Beijing 100034, P.R. China
| | - Kan Gong
- Department of Urology, Peking University First Hospital, Beijing 100034, P.R. China.,Hereditary Kidney Cancer Research Center, Peking University First Hospital, Beijing 100034, P.R. China.,Institute of Urology, Peking University, Beijing 100034, P.R. China.,National Urological Cancer Center, Beijing 100034, P.R. China
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Sun Y, Niu X, Wang G, Qiao X, Chen L, Zhong M. A Novel lncRNA ENST00000512916 Facilitates Cell Proliferation, Migration and Cell Cycle Progression in Ameloblastoma. Onco Targets Ther 2020; 13:1519-1531. [PMID: 32110049 PMCID: PMC7037065 DOI: 10.2147/ott.s236158] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 02/04/2020] [Indexed: 12/12/2022] Open
Abstract
Objective Our purpose was to identify up-regulated long noncoding RNA ENST00000512916 in ameloblastoma (AB) and explore its role in the progression of AB. Methods We analyzed lncRNA microarray expression profile between six paired AB and normal oral mucosa (NOM) tissues. An up-regulated lncRNA, ENST00000512916 was identified and validated by real-time qPCR. Cell proliferation, migration and cell cycle were detected by CCK-8 assay, transwell chamber and flow cytometry, respectively. Western blotting analysis was used to measure the expression of cell-cycle-related proteins including CyclinD1 and Cyclin-dependent kinase (CDK) 2/4/6. In addition, Xenograft tumor model was constructed to investigate tumor growth. Results Real-time qPCR confirmed that lncRNA ENST00000512916 was up-regulated in AB tissues. ENST00000512916 knockdown significantly inhibited cell proliferation, migration and the expression of CDK2/4/6 in AM-1 cells. Moreover, ENST00000512916 knockdown suppressed tumor growth in vivo. We also found that ENST00000512916 overexpression significantly promoted the expression of HOXC13 in AM-1 cells. Overexpression of ENST00000512916 promoted cell cycle progression in AM-1 cells, which was reversed by HOXC13 knockdown. Conclusion Our findings reveal that lncRNA ENST00000512916 promotes cell proliferation, migration and cell cycle progression of AB.
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Affiliation(s)
- Yan Sun
- Department of Oral Histopathology, School of Stomatology, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Xing Niu
- Department of Oral Histopathology, School of Stomatology, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Guannan Wang
- Department of Oral Histopathology, School of Stomatology, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Xue Qiao
- Department of Central Laboratory, School of Stomatology, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Lijie Chen
- Department of Oral Histopathology, School of Stomatology, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Ming Zhong
- Department of Oral Histopathology, School of Stomatology, China Medical University, Shenyang, Liaoning, People's Republic of China
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Mi H, Wang X, Wang F, Li L, Zhu M, Wang N, Xiong Y, Gu Y. SNHG15 Contributes To Cisplatin Resistance In Breast Cancer Through Sponging miR-381. Onco Targets Ther 2020; 13:657-666. [PMID: 32021307 PMCID: PMC6983676 DOI: 10.2147/ott.s223321] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/22/2019] [Indexed: 12/21/2022] Open
Abstract
Background Increasing evidence implies the participation of long non-coding RNAs (lncRNAs) in chemoresistance to cancer treatment. Their role and molecular mechanisms in breast cancer chemoresistance, nevertheless, are yet not considerably elucidated. In this work, we research the function of small nucleolar RNA host gene 15 (SNHG15) in cisplatin (DDP) resistance of breast cancer and uncover the underlying molecular mechanism. Methods SNHG15 and miR-381 expression levels were detected using Quantitative real-time PCR (qRT-PCR) analysis. The functional roles of SNHG15 and miR-381 in breast cancer were determined using MTT assay and flow cytometry analysis. The effect of SNHG15 on miR-381 expression was determined using Luciferase reporter assay, RNA immunoprecipitation (RIP) assay and qRT-PCR analysis. Results SNHG15 was found to be up-regulated in cisplatin resistant breast cancer tissues and cell lines. Breast cancer patients with high SNHG15 expression had a poor prognosis. SNHG15 silencing enhanced cisplatin sensitivity of MCF-7/DDP and MDA-MB-231/DDP cells. Additionally, SNHG15 could function as a miR-381 sponge. miR-381 overexpression could overcome cisplatin resistance. miR-381 knockdown countered SNHG15 knockdown-mediated enhancement of cisplatin sensitivity in MCF-7/DDP and MDA-MB-231/DDP cells. Besides, SNHG15 knockdown facilitated cisplatin sensitivity of cisplatin resistant breast cancer cells in vivo. Conclusion In summary, SNHG15 knockdown overcame cisplatin resistance of breast cancer by sponging miR-381, providing a novel therapeutic target for breast cancer.
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Affiliation(s)
- Hailong Mi
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
| | - Xiaochun Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
| | - Fang Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
| | - Lin Li
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
| | - Mingzhi Zhu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
| | - Nan Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
| | - Youyi Xiong
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
| | - Yuanting Gu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 475000, People's Republic of China
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Andrei L, Kasas S, Ochoa Garrido I, Stanković T, Suárez Korsnes M, Vaclavikova R, Assaraf YG, Pešić M. Advanced technological tools to study multidrug resistance in cancer. Drug Resist Updat 2020; 48:100658. [DOI: 10.1016/j.drup.2019.100658] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 02/06/2023]
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Abstract
Despite advanced clinical treatments, mortality in patients with metastatic colorectal cancer (CRC) remains high. Three critical determinants in CRC progression include the epithelial proliferation checkpoints, epithelial-to-mesenchymal transition (EMT) and inflammatory cytokines in the tumour microenvironment. Genes involved in these three processes are regulated at the transcriptional and post-transcriptional level. Recent studies revealed previously unappreciated roles of non-coding ribonucleic acids (ncRNAs) in modulating the proliferation checkpoints, EMT, and inflammatory gene expression in CRC. In this review, we will discuss the mechanisms underlying the roles of ncRNAs in CRC as well as examine future perspectives in this field. Better understanding of ncRNA biology will provide novel targets for future therapeutic development.
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Affiliation(s)
- Shengyun Ma
- Cellular and Molecular Medicine, University of California , San Diego, USA
| | - Tianyun Long
- Cellular and Molecular Medicine, University of California , San Diego, USA
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Shuai Y, Ma Z, Lu J, Feng J. LncRNA SNHG15: A new budding star in human cancers. Cell Prolif 2019; 53:e12716. [PMID: 31774607 PMCID: PMC6985667 DOI: 10.1111/cpr.12716] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 09/16/2019] [Accepted: 10/07/2019] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Long non-coding RNAs (lncRNAs) represent an important group of non-coding RNAs (ncRNAs) with more than 200 nucleotides in length that are transcribed from the so-called genomic "dark matter." Mounting evidence has shown that lncRNAs have manifested a paramount function in the pathophysiology of human diseases, especially in the pathogenesis and progression of cancers. Despite the exponential growth in lncRNA publications, our understanding of regulatory mechanism of lncRNAs is still limited, and a lot of controversies remain in the current lncRNA knowledge.The purpose of this article is to explore the clinical significance and molecular mechanism of SNHG15 in tumors. MATERIALS & METHODS We have systematically searched the Pubmed, Web of Science, Embase and Cochrane databases. We provide an overview of current evidence concerning the functional role, mechanistic models and clinical utilities of SNHG15 in human cancers in this review. RESULTS Small nucleolar RNA host gene 15 (SNHG15), a novel lncRNA, is identified as a key regulator in tumorigenesis and progression of various human cancers, including colorectal cancer (CRC), gastric cancer (GC), pancreatic cancer (PC) and hepatocellular carcinoma (HCC). Dysregulation of SNHG15 has been revealed to be dramatically correlated with advanced clinicopathological factors and predicts poor prognosis, suggesting its potential clinical value as a promising biomarker and therapeutic target for cancer patients. CONCLUSIONS LncRNA SNHG15 may serve as a prospective and novel biomarker for molecular diagnosis and therapeutics in patients with cancer.
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Affiliation(s)
- You Shuai
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Zhonghua Ma
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital and Institute, Beijing, China.,Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing, China
| | - Jianwei Lu
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Jifeng Feng
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
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Tang R, Chen J, Tang M, Liao Z, Zhou L, Jiang J, Hu Y, Liao Q, Xiong W, Tang Y, Nie S. LncRNA SLCO4A1-AS1 predicts poor prognosis and promotes proliferation and metastasis via the EGFR/MAPK pathway in colorectal cancer. Int J Biol Sci 2019; 15:2885-2896. [PMID: 31853225 PMCID: PMC6909968 DOI: 10.7150/ijbs.38041] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/26/2019] [Indexed: 12/24/2022] Open
Abstract
It is universally acknowledged that long non-coding RNAs (lncRNAs) involved in tumorigenesis in human cancers. However, the function and mechanism of many lncRNAs in colorectal cancer (CRC) remain unclear. By analyzing the two sets of CRC-related gene microarrays data, downloaded from the Gene Expression Omnibus (GEO) database and the lncRNA expression in a set of RNA sequencing data, we found that lncRNA SLCO4A1-AS1 was significantly upregulated in CRC tissues. We then collected CRC tissue samples and verified that SLCO4A1-AS1 is highly expressed in CRC tissues. Furthermore, SLCO4A1-AS1 was also upregulated in the CRC cell line. In situ hybridization results showed that high expression of SLCO4A1-AS1 was associated with poor prognosis in patients with CRC. Next, we found that SLCO4A1-AS1 promoted CRC cell proliferation, migration, and invasion. Results of western blotting assays show that its mechanism may relate to the epidermal growth factor receptor (EGFR)/mitogen-activated protein kinase (MAPK) pathway. Therefore, SLCO4A1-AS1 may be a potential biomarker for CRC prognosis and a new target for colorectal cancer therapy.
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Affiliation(s)
- Rui Tang
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,The University of South China, Hengyang, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Junhong Chen
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,The University of South China, Hengyang, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Mengtian Tang
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,The University of South China, Hengyang, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhiqiang Liao
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,The University of South China, Hengyang, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Lianqing Zhou
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Jiarui Jiang
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Yingbin Hu
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - QianJin Liao
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Central Laboratory, The Affiliated Cancer Hospital of Xiangya Medical School, Central South University, Changsha, China
| | - Wei Xiong
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Yanyan Tang
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Central Laboratory, The Affiliated Cancer Hospital of Xiangya Medical School, Central South University, Changsha, China
| | - Shaolin Nie
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Department of Colorectal Surgery, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
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Cui H, Zhao J. LncRNA TMPO‐AS1 serves as a ceRNA to promote osteosarcoma tumorigenesis by regulating miR‐199a‐5p/WNT7B axis. J Cell Biochem 2019; 121:2284-2293. [PMID: 31680323 DOI: 10.1002/jcb.29451] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 10/10/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Huaan Cui
- Department of Orthopedics Shengli Oil field Central Hospital Dongying City Shandong Province China
| | - Jiang Zhao
- Department of Orthopedics Ninth Hospital of Xi'an Xi'an City Shaanxi Province China
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Saeinasab M, Bahrami AR, González J, Marchese FP, Martinez D, Mowla SJ, Matin MM, Huarte M. Correction to: SNHG15 is a bifunctional MYC-regulated noncoding locus encoding a lncRNA that promotes cell proliferation, invasion and drug resistance in colorectal cancer by interacting with AIF. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:441. [PMID: 31666117 PMCID: PMC6822354 DOI: 10.1186/s13046-019-1432-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In the original publication of this article,[1] the Funding section needs to be revised, and the corrected Funding section appears below.
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Affiliation(s)
- Morvarid Saeinasab
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.,Industrial Biotechnology Reasearch Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad Reza Bahrami
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.,Industrial Biotechnology Reasearch Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Jovanna González
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research, University of Navarra, Pamplona, Spain.,Institute of Health Research of Navarra (IdiSNA), Pamplona, Spain
| | - Francesco P Marchese
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research, University of Navarra, Pamplona, Spain.,Institute of Health Research of Navarra (IdiSNA), Pamplona, Spain
| | - Dannys Martinez
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research, University of Navarra, Pamplona, Spain.,Institute of Health Research of Navarra (IdiSNA), Pamplona, Spain
| | - Seyed Javad Mowla
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran. .,Industrial Biotechnology Reasearch Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Maite Huarte
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research, University of Navarra, Pamplona, Spain. .,Institute of Health Research of Navarra (IdiSNA), Pamplona, Spain.
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Dai W, Dai JL, Tang MH, Ye MS, Fang S. lncRNA-SNHG15 accelerates the development of hepatocellular carcinoma by targeting miR-490-3p/ histone deacetylase 2 axis. World J Gastroenterol 2019; 25:5789-5799. [PMID: 31636472 PMCID: PMC6801192 DOI: 10.3748/wjg.v25.i38.5789] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/30/2019] [Accepted: 09/13/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) has become a great threat for people’s health. Many long noncoding RNAs are involved in the pathogenesis of HCC. SNHG15, as a tissue specific long noncoding RNAs, has been studied in many human cancers, except HCC.
AIM To explore the regulatory mechanism of SNHG15 in HCC.
METHODS In the present research, 101 HCC patient samples, two HCC cell lines and one normal liver cell line were used. RT-qPCR and Western blot analysis were applied to detect SNHG15, miR-490-3p and histone deacetylase 2 (HDAC2) expression. The regulatory mechanism of SNHG15 was investigated using CCK-8, Transwell and luciferase reporter assays.
RESULTS Our research showed that up-regulation of SNHG15 was found in HCC and was related to aggressive behaviors in HCC patients. Moreover, knockdown of SNHG15 restrained HCC cell proliferation, migration and invasion. In addition, SNHG15 served as a molecular sponge for miR-490-3p. Further, miR-490-3p directly targets HDAC2. HDAC2 was involved in HCC progression by interacting with the SNHG15/miR-490-3p axis.
CONCLUSION In conclusion, long noncoding RNA SNHG15 promotes HCC progression by mediating the miR-490-3p/HDAC2 axis in HCC.
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Affiliation(s)
- Wei Dai
- Department of Hepatobiliary Surgery, the Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
| | - Jia-Liang Dai
- Department of Hepatobiliary Surgery, the Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
| | - Mao-Hua Tang
- Department of Infectious Disease, the Second Affiliated Hospital of Guangdong Medical University, Zhanjiang 524003, Guangdong Province, China
| | - Mu-Shi Ye
- Department of Surgery, the Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
| | - Shuo Fang
- The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, China
- Li KaShing Faculty of Medicine, the University of Hong Kong, Hong Kong, China
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Zhang PF, Wu J, Luo JH, Li KS, Wang F, Huang W, Wu Y, Gao SP, Zhang XM, Zhang PN. SNHG22 overexpression indicates poor prognosis and induces chemotherapy resistance via the miR-2467/Gal-1 signaling pathway in epithelial ovarian carcinoma. Aging (Albany NY) 2019; 11:8204-8216. [PMID: 31581131 PMCID: PMC6814594 DOI: 10.18632/aging.102313] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 09/21/2019] [Indexed: 12/13/2022]
Abstract
Recently, an increasing number of studies have reported that dysregulation of long noncoding RNAs (lncRNAs) plays an important role in cancer initiation and progression, including in epithelial ovarian carcinoma (EOC). However, little is known about the detailed biological functions of the lncRNA small nucleolar RNA host gene 22 (SNHG22) during the progression of EOC. Here, we found that SNHG22 was significantly increased in EOC tissues and was significantly associated with a low level of differentiation. Forced SNHG22 expression promoted chemotherapy resistance in EOC cells. Knockdown of SNHG22 expression increased the sensitivity of EOC cells to cisplatin and paclitaxel. Importantly, we found that SNHG22 could directly interact with miR-2467 and lead to the release of miR-2467-targeted Gal-1 mRNA. Moreover, SNHG22 overexpression induced EOC cell resistance to chemotherapy agents via PI3K/AKT and ERK cascade activation. In summary, our findings demonstrate that SNHG22 plays a critical role in the chemotherapy resistance of EOC by mediating the miR-2467/Gal-1 regulatory axis.
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Affiliation(s)
- Peng-Fei Zhang
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jing Wu
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jin-Hong Luo
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ke-Sang Li
- Department of Hematology and Oncology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Fei Wang
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wei Huang
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yin Wu
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shui-Ping Gao
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xue-Mei Zhang
- Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Peng-Nan Zhang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
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Li B, Xie D, Zhang H. Long non-coding RNA GHET1 contributes to chemotherapeutic resistance to Gemcitabine in bladder cancer. Cancer Chemother Pharmacol 2019; 84:187-194. [PMID: 31115606 DOI: 10.1007/s00280-019-03873-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/14/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE Bladder cancer (BC) ranks first in the incidence of urogenital tumors in China and second only to prostate cancer in the West. This study will clarify the roles and mechanism of lncRNA GHET1 in chemotherapeutic resistance of BC to Gemcitabine. METHODS The expression of GHET1 was examined using real-time quantitative PCR. Cell Counting Kit-8 assay was applied to analyze cell proliferation and Gemcitabine sensitivity. Cell apoptosis was detected using Annexin V-FITC/PI double-stained flow cytometry. The expression of ABCC1 protein was examined using Western blotting. RESULTS Firstly, the expression of GHET1 was up-regulated in BC, its high expression was relevant to high grade and muscle invasion of BC patients. Secondly, high expression of GHET1 was related to low Gemcitabine sensitivity of BC patients, and GHET1 was highly expressed in Gemcitabine-resistant BC cell lines. Thirdly, knockdown of GHET1 decreased the IC50 of Gemcitabine in Gemcitabine-resistant BC cell lines and advanced the Gemcitabine-induced cytotoxicity; GHET1 promoted Gemcitabine resistance in BC. Finally, knockdown of GHET1 also inhibited the expression of ABCC1 protein in Gemcitabine-resistant BC cells. CONCLUSIONS High expression of GHET1 was related with the low sensitivity to Gemcitabine of BC; GHET1 contributed to chemotherapeutic resistance to Gemcitabine in BC through up-regulating ABCC1 expression. Our findings are helpful to expound the molecular mechanism of chemotherapeutic resistance in BC.
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Affiliation(s)
- Bo Li
- Department of Urinary Surgery, Shengjing Hospital, China Medical University, No. 36 Sanhao Street, Heping Area, Shenyang, 100004, China
| | - Dalon Xie
- Department of Anatomy, College of Basic Medical Science, China Medical University, Shenyang, 110001, China
| | - Hui Zhang
- Department of Urinary Surgery, Shengjing Hospital, China Medical University, No. 36 Sanhao Street, Heping Area, Shenyang, 100004, China.
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