301
|
Wu K, Hu L, Lv X, Chen J, Yan Z, Jiang J, Cheng Y, Hou J. Long non-coding RNA MIR4435-1HG promotes cancer growth in clear cell renal cell carcinoma. Cancer Biomark 2021; 29:39-50. [PMID: 32538823 DOI: 10.3233/cbm-201451] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) play important roles in cancer development, yet their roles in renal carcinoma remain unclear. OBJECTIVE We performed this study in order to investigate the expression and roles of lncRNAs in renal cell carcinoma. METHODS In this study, we investigated the expression of lncRNAs in renal cell carcinoma through microarray analysis. Quantitative real-time PCR was performed to measure the expression of lncRNAs. Gain- or loss-of-function experiments were performed to investigate the roles of lncRNAs in cell proliferation and apoptosis. RNA pull-down and western blotting were performed to explore the underlying mechanism. RESULTS The microarray analysis identified an upregulated lncRNA MIR4435-1HG in renal carcinoma. The expression level of MIR4435-1HG was correlated with TNM stage, tumor size, and Fuhrman grade. High expression of MIR4435-1HG indicated poor prognosis. MIR4435-1HG knockdown inhibited cell proliferation, and suppressed the migrating and invasive capacity of renal carcinoma cells. RNA pull-down followed by mass spectrometry revealed an interaction between MIR4435-1HG and pyruvate carboxylase, which was later corroborated by western blotting. CONCLUSIONS MIR4435-1HG plays a critical role in the oncogenesis of renal cell carcinoma and may serve as a potential biomarker for renal cell carcinoma.
Collapse
Affiliation(s)
- Kerong Wu
- Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China.,Department of Urology, First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China.,Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Linkun Hu
- Department of Urology, First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China.,Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Xiuyi Lv
- Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Junfeng Chen
- Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Zejun Yan
- Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Junhui Jiang
- Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Yue Cheng
- Translational Research Laboratory for Urology, Department of Urology, Ningbo Clinical Research Center for Urological Disease, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Jianquan Hou
- Department of Urology, First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China
| |
Collapse
|
302
|
Feng ZY, Gao HY, Feng TD. Immune Infiltrates of m 6A RNA Methylation-Related lncRNAs and Identification of PD-L1 in Patients With Primary Head and Neck Squamous Cell Carcinoma. Front Cell Dev Biol 2021; 9:672248. [PMID: 34178999 PMCID: PMC8220827 DOI: 10.3389/fcell.2021.672248] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/12/2021] [Indexed: 12/18/2022] Open
Abstract
Background: The purpose of this study was to determine the association between m6A-modified lncRNAs, immune infiltration, and PD-L1 expression in patients with primary head and neck squamous cell carcinoma (HNSCC) and the prognostic value of m6A RNA methylation-related lncRNAs in HNSCC. Methods: We downloaded the RNA-seq transcriptome data and the clinical information for HNSCC from the TCGA databases and used consensus clustering analysis to divide the samples into two groups. To identify a risk signature, least absolute shrinkage and selection operator (LASSO) analyses were conducted. the association between m6A-modified lncRNAs, immune infiltration, and PD-L1 expression were detected by using the R packages. What is more, we used cBioPortal tools to identify genomic alterations and PD-L1 mutations and Gene set enrichment analysis (GSEA) was utilized to predict downstream access of two clusters. Results: Notably, lncRNAs play significant roles in tumorigenesis and development. In total, we identified two subtypes of HNSCC according to consensus clustering of the m6A RNA methylation-related lncRNAs, and the T, grade and age were proven to be related to the subtypes. The Cox regression and LASSO analyses identified a risk signature including GRHL3-AS1, AL121845.4, AC116914.2, AL513190.1. The prognostic value of the risk signature was then proven. The selected gene PD-L1 mutations and the immune infiltration in both groups were further explored. Conclusion: Collectively, our study elucidated the important role of m6A RNA methylation- related lncRNAs in tumor microenvironment of HNSCC. The proposed m6A RNA methylation- related lncRNAs might serve as crucial mediators of tumor microenvironment of HNSCC, representing promising therapeutic targets in improving immunotherapeutic efficacy.
Collapse
Affiliation(s)
- Zi-Yi Feng
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Hao-Yu Gao
- Department of Students, The First Hospital of China Medical University, Shenyang, China
| | - Tian-Da Feng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
303
|
Wen W, Wang H, Xie S, Wu Z, Zhang C. BVES-AS1 inhibits the malignant behaviors of colon adenocarcinoma cells via regulating BVES. Cell Biol Int 2021; 45:1945-1956. [PMID: 34003551 DOI: 10.1002/cbin.11634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 04/29/2021] [Accepted: 05/16/2021] [Indexed: 11/10/2022]
Abstract
The underexpression of the long noncoding RNA blood vessel epicardial substance antisense RNA 1 (BVES-AS1) has been shown in colon adenocarcinoma (COAD) patients. However, its role in COAD remains to be explored. This study aimed to investigate the function and potential mechanism of BVES-AS1 in COAD. Colony formation, Cell Counting Kit-8, JC-1 mitochondrial membrane potential assay, wound healing, transwell, and western blot analyses were used to measure cell proliferation, apoptosis, migration, invasion, and epithelial-mesenchymal transition (EMT) in COAD cells. RNA pull-down, luciferase reporter, and RNA binding protein immunoprecipitation assays were used to detect the interaction of BVES-AS1 and downstream genes. BVES-AS1 was expressed at low levels in COAD cells. Overexpressed BVES-AS1 inhibited COAD cell proliferation, migration, invasion, and EMT while elevating cell apoptosis. Mechanistically, BVES-AS1 functioned as a competing endogenous RNA sponging miR-522-3p to regulate the expression of nearby gene blood vessel epicardial substance (BVES). Besides this, BVES-AS1 recruited TATA-box binding protein associated factor 15 (TAF15) to promote BVES messenger RNA stability. Taken together, our study confirmed that BVES-AS1 inhibited COAD progression via interacting with miR-522-3p and TAF15 to regulate BVES expression, which might offer a perspective for COAD treatment.
Collapse
Affiliation(s)
- Wu Wen
- Department of Gastroenterology, The Second People's Hospital of Chengdu, Chengdu, Sichuan, China
| | - Haiyan Wang
- Department of Gastroenterology, Binzhou People's Hospital, Binzhou, Shandong, China
| | - Shuang Xie
- Department of General Surgery, The 988th Hospital of PLA Joint Logistics Support Force, Zhengzhou, Henan, China
| | - Zuyin Wu
- Department of General Surgery, The 988th Hospital of PLA Joint Logistics Support Force, Zhengzhou, Henan, China
| | - Chunxu Zhang
- Department of General Surgery, The 988th Hospital of PLA Joint Logistics Support Force, Zhengzhou, Henan, China
| |
Collapse
|
304
|
Tang S, Liu Q, Xu M. LINC00857 promotes cell proliferation and migration in colorectal cancer by interacting with YTHDC1 and stabilizing SLC7A5. Oncol Lett 2021; 22:578. [PMID: 34122629 PMCID: PMC8190780 DOI: 10.3892/ol.2021.12839] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 03/12/2021] [Indexed: 12/15/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most lethal malignances in humans. Hence, it is of great significance to identify regulatory molecules in CRC progression. Accumulating evidence has demonstrated that long non-coding RNAs (lncRNAs) are involved in cancer malignancy. It has been reported that long intergenic non-protein coding RNA 857 (LINC00857) acts as a vital oncogene in many types of cancer by promoting cell proliferation and migration. However, the role of LINC00857 in CRC remains unclear. In the present study, LINC00857 was upregulated in CRC tissue samples and cells. Next, in vitro loss-of-function experiments demonstrated that LINC00857 knockdown suppressed CRC cell viability, proliferation and migration, as well as epithelial-mesenchymal transition and increased cell apoptosis. Mechanistically, LINC00857 abundantly interacted with the RNA-binding protein YTH domain containing 1 (YTHDC1). YTHDC1 ultimately combined with solute carrier family 7 member 5 (SLC7A5) and increased SLC7A5 mRNA stability. Finally, a series of rescue experiments indicated that LINC00857 promoted the proliferation and migration of CRC cells by regulating mRNA stability. Thus, the present findings illustrated that LINC00857 functions as an oncogene in CRC cells via the YTHDC1/SLC7A5 axis.
Collapse
Affiliation(s)
- Shu Tang
- Department of Internal Medicine-Oncology, Chenzhou No. 1 People's Hospital, Chenzhou, Hunan 423000, P.R. China
| | - Qi Liu
- Hospital Medical Department, Chenzhou No. 1 People's Hospital, Chenzhou, Hunan 423000, P.R. China
| | - Ming Xu
- Department of Gastrointestinal Surgery, Chenzhou No. 1 People's Hospital, Chenzhou, Hunan 423000, P.R. China
| |
Collapse
|
305
|
Li S, Yang Q, Zhou Z, Fu M, Yang X, Hao K, Liu Y. SNHG3 cooperates with ELAVL2 to modulate cell apoptosis and extracellular matrix accumulation by stabilizing SNAI2 in human trabecular meshwork cells under oxidative stress. ENVIRONMENTAL TOXICOLOGY 2021; 36:1070-1079. [PMID: 33522089 DOI: 10.1002/tox.23106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/05/2021] [Accepted: 01/16/2021] [Indexed: 06/12/2023]
Abstract
Glaucoma is the main reason for irreversible blindness, and pathological increased intraocular pressure is the leading risk factor for glaucoma. It is reported that trabecular meshwork cell injury is closely associated with the elevated intraocular pressure. The current study aimed to investigate the role of small nucleolar RNA host gene 3 (SNHG3) in human trabecular meshwork (HTM) cells under oxidative stress. A series of experiments including real-time quantitative polymerase chain reaction, subcellular fractionation assay, western blot analysis, cell counting kit-8 assay, RNA pull down, flow cytometry analysis, and RNA immunoprecipitation assay were used to explore the biological function and regulatory mechanism of SNHG3 in HTM cells under oxidative stress. First, we observed that H2 O2 induced SNHG3 upregulation in HTM cells. Then, we found that SNHG3 silencing alleviated H2 O2 -induced oxidative damage in HTM cells. Moreover, snail family transcriptional repressor 2 (SNAI2) knockdown alleviated the oxidative damage induced by H2 O2 in HTM cells. Mechanistically, SNHG3 bound with ELAV like RNA binding protein 2 (ELAVL2) to stabilize SNAI2. Finally, SNAI2 overexpression counteracted the effect of SNHG3 silencing on H2 O2 -treated HTM cells. In conclusion, our results demonstrated that SNHG3 cooperated with ELAVL2 to modulate cell apoptosis and extracellular matrix accumulation by stabilizing SNAI2 in HTM cells under oxidative stress.
Collapse
Affiliation(s)
- Sizhen Li
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Qingsong Yang
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Zixiu Zhou
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Min Fu
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Xiaodong Yang
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Kuanxiao Hao
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| | - Yating Liu
- Department of Nanjing Tongren Eye Center, Nanjing Tongren Hospital, Nanjing, Jiangsu, China
| |
Collapse
|
306
|
Long non-coding RNA H19: Physiological functions and involvements in central nervous system disorders. Neurochem Int 2021; 148:105072. [PMID: 34058282 DOI: 10.1016/j.neuint.2021.105072] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/08/2021] [Accepted: 05/16/2021] [Indexed: 12/26/2022]
Abstract
Central nervous system (CNS) disorders are some of the most complex and challenging diseases because of the intricate structure and functions of the CNS. Long non-coding RNA (LncRNA) H19, which had been mistaken for "transcription noise" previously, has now been found to be closely related to the development and homeostasis of the CNS. Several recent studies indicate that it plays an important role in the pathogenesis, treatment, and even prognosis of CNS disorders. LncRNA H19 is correlated with susceptibility to various CNS disorders such as intracranial aneurysms, ischemic stroke, glioma, and neuroblastoma. Moreover, it participates in the pathogenesis of CNS disorders by regulating transcription, translation, and signaling pathways, suggesting that it is a promising biomarker and therapeutic target for these disorders. This article reviews the functions and mechanisms of lncRNA H19 in various CNS disorders, including cerebral ischemia, cerebral hemorrhage, glioma, pituitary adenoma, neuroblastoma, Parkinson's disease, Alzheimer's disease, traumatic spinal cord injury, neuropathic pain, and temporal lobe epilepsy, to provide a theoretical basis for further research on the role of lncRNA H19 in CNS disorders.
Collapse
|
307
|
Wang Q, Zhuo Z, Yu H, Wang C, Gao L. Circ_0019435 Exerts Its Functions in the Cellular Process of Cervical Cancer via Epigenetically Silencing DKK1 and PTEN. Reprod Sci 2021; 28:2989-2999. [PMID: 34037956 DOI: 10.1007/s43032-021-00625-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 05/16/2021] [Indexed: 01/22/2023]
Abstract
Cervical cancer (CC) is the most serious gynecological malignancy among women worldwide. As a subtype of noncoding RNAs (ncRNAs), circular RNAs (circRNAs) play important roles in the regulation of gene expression and cancer progression. It was discovered from the cancer-specific circRNA database (CSCD) that circ_0019435 was mainly distributed in the nucleus of HeLa-S3 cells. However, few researches have mentioned circ_0019435 with its function in cancers. The present study uncovered that circ_0019435 was upregulated in CC cells by qRT-PCR. Moreover, circ_0019435 was more stable than its linear isoform-ABCC2. Besides, no regulation of circ_0019435 on ABCC2 and the chemoresistance of CC cells were found. Then, it was unveiled by a series of functional assays including colony formation, trypan blue staining, and transwell invasion assays in that circ_0019435 ablation induced the suppression of proliferation, invasion, and EMT of HeLa and SiHa cells. The subcellular distribution of circ_0019435 was assessed by subcellular fractionation and FISH assay. Furthermore, it was disclosed that circ_0019435 binds to EZH2 to silence DKK1 and PTEN. Finally, rescue assays corroborated that DKK1 and PTEN were involved in circ_0019435-mediated CC cell progression. In conclusion, circ_0019435 regulates DKK1 and PTEN expression at the epigenetic level, thereby influencing the progression of CC cells.
Collapse
Affiliation(s)
- Qiming Wang
- Department of Gynecology, Ningbo Women & Children's Hospital, Ningbo, 315012, Zhejiang, China
| | - Zhihong Zhuo
- Department of Gynecology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, 315010, Zhejiang, China.
| | - Huimin Yu
- Department of Gynecology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, 315010, Zhejiang, China
| | - Chuhan Wang
- Department of Gynecology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, 315010, Zhejiang, China
| | - Li Gao
- Department of Gynecology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, 315010, Zhejiang, China
| |
Collapse
|
308
|
Gene Instability-Related lncRNA Prognostic Model of Melanoma Patients via Machine Learning Strategy. JOURNAL OF ONCOLOGY 2021; 2021:5582920. [PMID: 34122546 PMCID: PMC8169244 DOI: 10.1155/2021/5582920] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/30/2021] [Accepted: 05/08/2021] [Indexed: 12/03/2022]
Abstract
Background Melanoma is a common tumor characterized by a high mortality rate in its late stage. After metastasis, current treatment methods are relatively ineffective. Many studies have shown that long noncoding RNA (lncRNA) may participate in gene mutation and genomic instability in cancer. Methods We downloaded transcriptome data, mutation data, and clinical follow-up data of melanoma patients from The Cancer Genome Atlas. We divided samples into groups according to the number of somatic cell mutations and then performed a differential analysis to screen out the differentially expressed genes. We then divided samples into genomic unstable and genomic stable groups. We compared lncRNA expression profiles in these groups and constructed a protein-coding genes network coexpressed with selected lncRNA to analyze the pathways enriched by these genes. Two machine learning methods, least absolute shrinkage and selector operation (LASSO) and support vector machine-recursive feature elimination (SVM-RFE), were applied to conduct the lncRNA-related prognostic model. Afterward, we performed survival analysis, risk correlation analysis, independent prognostic analysis, and clinical subgroup model validation. Finally, through wound healing assay and transwell assay, the function of AATBC was verified by A375 cell lines. Results We screened 61 prognostic-related lncRNAs and constructed an lncRNA-mRNA coexpression network based on these lncRNAs. Seven lncRNAs were selected as common characteristic factors based on the two machine learning methods. The model formula was as follows: risk score = 0.085∗AATBC + 0.190∗ AC026689.1−0.117∗AC083799.1 + 0.036∗ AC091544.6−0.039∗ LINC01287−0.291∗ SPRY4.AS1 + 0.056∗ ZNF667.AS1. The seven lncRNAs in this formula are key candidates. Cell experiments have verified that knocking down AATBC in A375 cell lines can reduce the proliferation and invasion ability of melanoma cells. Conclusion The lncRNA we identified provides a new way to study lncRNA's role in the genomic instability of melanoma. Our findings may provide essential candidate biomarkers for the diagnosis and treatment of melanoma.
Collapse
|
309
|
Guo R, Zhang Y, Yu Y, Su S, Zhao Q, Chu X, Li S, Lu H, Sun C. TCONS_00230836 silencing restores stearic acid-induced β cell dysfunction through alleviating endoplasmic reticulum stress rather than apoptosis. GENES AND NUTRITION 2021; 16:8. [PMID: 34022799 PMCID: PMC8140511 DOI: 10.1186/s12263-021-00685-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 03/19/2021] [Indexed: 08/07/2023]
Abstract
BACKGROUND Chronic exposure of pancreatic β cells to high levels of stearic acid (C18:0) leads to impaired insulin secretion, which accelerates the progression of type 2 diabetes mellitus (T2DM). Recently, long noncoding RNAs (lncRNAs) were found to participate in saturated fatty acid-induced metabolism dysfunction. However, their contribution to stearic acid-induced β-cell dysfunction remains largely unknown. This study evaluated the possible role of the lncRNA TCONS_00230836 in stearic acid-stimulated lipotoxicity to β cells. METHOD Using high-throughput RNA-sequencing, TCONS_00230836 was screened out as being exclusively differentially expressed in stearic acid-treated mouse β-TC6 cells. Co-expression network was constructed to reveal the potential mRNAs targeted for lncRNA TCONS_00230836. Changes in this lncRNA's and candidate mRNAs' levels were further assessed by real-time PCR in stearic acid-treated β-TC6 cells and islets of mice fed a high-stearic-acid diet (HSD). The localization of TCONS_00230836 was detected by fluorescent in situ hybridization. The endogenous lncRNA TCONS_00230836 in β-TC6 cells was abrogated by its Smart Silencer. RESULTS TCONS_00230836 was enriched in mouse islets and mainly localized in the cytoplasm. Its expression was significantly increased in stearic acid-treated β-TC6 cells and HSD-fed mouse islets. Knockdown of TCONS_00230836 significantly restored stearic acid-impaired glucose-stimulated insulin secretion through alleviating endoplasmic reticulum stress. However, stearic acid-induced β cell apoptosis was not obviously recovered. CONCLUSION Our findings suggest the involvement of TCONS_00230836 in stearic acid-induced β-cell dysfunction, which provides novel insight into stearic acid-induced lipotoxicity to β cells. Anti-lncRNA TCONS_00230836 might be a new therapeutic strategy for alleviating stearic acid-induced β-cell dysfunction in the progression of T2DM.
Collapse
Affiliation(s)
- Rui Guo
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China
| | - Yunjin Zhang
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China
| | - Yue Yu
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China
| | - Shenghan Su
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China
| | - Qingrui Zhao
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China
| | - Xia Chu
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China
| | - Shenglong Li
- General Surgery Department, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Huimin Lu
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China.
| | - Changhao Sun
- Department of Nutrition and Food Hygiene (National Key Discipline), Public Health College, Harbin Medical University, Harbin, Hei Longjiang province, 150081, People's Republic of China.
| |
Collapse
|
310
|
Role of Regulatory Non-Coding RNAs in Aggressive Thyroid Cancer: Prospective Applications of Neural Network Analysis. Molecules 2021; 26:molecules26103022. [PMID: 34069428 PMCID: PMC8159115 DOI: 10.3390/molecules26103022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 11/17/2022] Open
Abstract
Thyroid cancer (TC) is the most common endocrine malignancy. Most TCs have a favorable prognosis, whereas anaplastic thyroid carcinoma (ATC) is a lethal form of cancer. Different genetic and epigenetic alterations have been identified in aggressive forms of TC such as ATC. Non-coding RNAs (ncRNAs) represent functional regulatory molecules that control chromatin reprogramming, including transcriptional and post-transcriptional mechanisms. Intriguingly, they also play an important role as coordinators of complex gene regulatory networks (GRNs) in cancer. GRN analysis can model molecular regulation in different species. Neural networks are robust computing systems for learning and modeling the dynamics or dependencies between genes, and are used for the reconstruction of large data sets. Canonical network motifs are coordinated by ncRNAs through gene production from each transcript as well as through the generation of a single transcript that gives rise to multiple functional products by post-transcriptional modifications. In non-canonical network motifs, ncRNAs interact through binding to proteins and/or protein complexes and regulate their functions. This article overviews the potential role of ncRNAs GRNs in TC. It also suggests prospective applications of deep neural network analysis to predict ncRNA molecular language for early detection and to determine the prognosis of TC. Validation of these analyses may help in the design of more effective and precise targeted therapies against aggressive TC.
Collapse
|
311
|
Lou J, Wang P, Chang K, Wang G, Geng X, Wu Y, Zhang W, Niu G. Knocking down LINC01116 can inhibit the regulation of TGF-β through miR-774-5p axis and inhibit the occurrence and development of glioma. Am J Transl Res 2021; 13:5702-5719. [PMID: 34150180 PMCID: PMC8205728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/21/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Many studies have shown that non-coding RNAs (ncRNAs), including long non-coding RNA (LncRNA) and micro RNA (miRNA), play a crucial regulatory role in glioma. LINC01116 is a newly discovered LncRNA, and the relationship between LncRNA and glioma is still under exploration. METHOD LncRNAs with potential differences were screened through GEO database, and the expressions of LINC01116 and miR-744-5p/TGF-β1 in glioma tissues were tested using qRT-PCR. Changes in proliferation and migration/invasion of glioma were tested using CCK-8 and transwell assay. The expression changes of TGF-β1 were tested using qRT-PCR and Western blot. Targeted binding among LINC01116, miR-744-5p and TGF-β1 was verified using double luciferase reporter, RNA Immunoprecipitation (PIR) and RNA pull-down experiments. The effect of LINC01116 on tumor growth was determined by tumor allografting test. RESULTS GEO database and clinical research revealed that the expression level of LINC01116 in glioma increased, and the elevation of LINC01116 was closely related to the adverse prognosis of clinical patients. Functional experiments showed that the inhibition of LINC01116 could up-regulate miR-744-5p-mediated proliferation and metastasis of glioma cells. Western blot analysis and qRT-PCR analysis showed that LINC01116 regulated TGF-β1 by mediating miR-744-5p. Further cell behavior experiments showed that LINC01116 acted as miR-744-5p sponge to inhibit proliferation and metastasis caused by TGF-β1. Finally, the analysis of animal models in vivo showed that LINC01116 could regulate the tumor growth of glioma. CONCLUSION LncRNA LINC01116 acts as an oncogene and promotes TGF-β1 mediated proliferation and metastasis by acting as competitive endogenous RNA (ceRNA) in glioma.
Collapse
Affiliation(s)
- Jinfeng Lou
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
- Henan Provincial Engineering Research Center of Natural Drug Extraction and Medical Technology Application, Zhengzhou Railway Vocational & Technical CollegeZhengzhou 451460, Henan Province, China
| | - Pengfei Wang
- Microsurgery, The First Affiliated Hospital of Xinxiang Medical CollegeWeihui 453100, Xinxiang, Henan Province, China
| | - Keliang Chang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
| | - Genwei Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
| | - Xiaoteng Geng
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
| | - Yang Wu
- Henan Provincial Engineering Research Center of Natural Drug Extraction and Medical Technology Application, Zhengzhou Railway Vocational & Technical CollegeZhengzhou 451460, Henan Province, China
- Department of Neurosurgery, The People’s Hospital of Minquan CountyMinquan 476800, Henan Province, China
| | - Wanhong Zhang
- Department of Neurosurgery, Kaifeng Central HospitalKaifeng 475000, Henan Province, China
| | - Guangming Niu
- Department of Neurosurgery, The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450014, Henan Province, China
| |
Collapse
|
312
|
Razavi ZS, Asgarpour K, Mahjoubin-Tehran M, Rasouli S, Khan H, Shahrzad MK, Hamblin MR, Mirzaei H. Angiogenesis-related non-coding RNAs and gastrointestinal cancer. MOLECULAR THERAPY-ONCOLYTICS 2021; 21:220-241. [PMID: 34095461 PMCID: PMC8141508 DOI: 10.1016/j.omto.2021.04.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gastrointestinal (GI) cancers are among the main reasons for cancer death globally. The deadliest types of GI cancer include colon, stomach, and liver cancers. Multiple lines of evidence have shown that angiogenesis has a key role in the growth and metastasis of all GI tumors. Abnormal angiogenesis also has a critical role in many non-malignant diseases. Therefore, angiogenesis is considered to be an important target for improved cancer treatment. Despite much research, the mechanisms governing angiogenesis are not completely understood. Recently, it has been shown that angiogenesis-related non-coding RNAs (ncRNAs) could affect the development of angiogenesis in cancer cells and tumors. The broad family of ncRNAs, which include long non-coding RNAs, microRNAs, and circular RNAs, are related to the development, promotion, and metastasis of GI cancers, especially in angiogenesis. This review discusses the role of ncRNAs in mediating angiogenesis in various types of GI cancers and looks forward to the introduction of mimetics and antagonists as possible therapeutic agents.
Collapse
Affiliation(s)
| | - Kasra Asgarpour
- Department of Medicine, University of Western Ontario, London, ON, Canada
| | - Maryam Mahjoubin-Tehran
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Susan Rasouli
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Mohammad Karim Shahrzad
- Department of Internal Medicine and Endocrinology, Shohadae Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| |
Collapse
|
313
|
Li J, Li H, Ye X, Zhang L, Xu Q, Ping Y, Jing X, Jiang W, Liao Q, Liu B, Wang Y. IIMLP: integrated information-entropy-based method for LncRNA prediction. BMC Bioinformatics 2021; 22:243. [PMID: 33980144 PMCID: PMC8117603 DOI: 10.1186/s12859-020-03884-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The prediction of long non-coding RNA (lncRNA) has attracted great attention from researchers, as more and more evidence indicate that various complex human diseases are closely related to lncRNAs. In the era of bio-med big data, in addition to the prediction of lncRNAs by biological experimental methods, many computational methods based on machine learning have been proposed to make better use of the sequence resources of lncRNAs. RESULTS We developed the lncRNA prediction method by integrating information-entropy-based features and machine learning algorithms. We calculate generalized topological entropy and generate 6 novel features for lncRNA sequences. By employing these 6 features and other features such as open reading frame, we apply supporting vector machine, XGBoost and random forest algorithms to distinguish human lncRNAs. We compare our method with the one which has more K-mer features and results show that our method has higher area under the curve up to 99.7905%. CONCLUSIONS We develop an accurate and efficient method which has novel information entropy features to analyze and classify lncRNAs. Our method is also extendable for research on the other functional elements in DNA sequences.
Collapse
Affiliation(s)
- Junyi Li
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China.
| | - Huinian Li
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Xiao Ye
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Li Zhang
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Qingzhe Xu
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Yuan Ping
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Xiaozhu Jing
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Wei Jiang
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Qing Liao
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China
| | - Bo Liu
- Center for Bioinformatics, School of Computer Science and Technology, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China
| | - Yadong Wang
- School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, Guangdong, China.
- Center for Bioinformatics, School of Computer Science and Technology, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China.
| |
Collapse
|
314
|
LncRNA NEAT1 Regulates Infantile Pneumonia by Sponging miR-146b. Mol Biotechnol 2021; 63:694-701. [PMID: 33978942 DOI: 10.1007/s12033-021-00331-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 04/23/2021] [Indexed: 01/06/2023]
Abstract
This study designed to investigate the potential role of lncRNA NEAT1/miR-146b in infantile pneumonia. In this study, 58 children with pneumonia and 58 healthy children collected for routine examination from December 2016 to January 2019. The lncRNA NEAT1 and miR-146b expression levels were detected by qPCR in both groups. The pneumonia model was established by inducing human embryonic lung fibroblasts HFL1 with LPS, and then transfected with lncRNA NEAT1 inhibition and miR-146b over-expression vector to observe the effect on cell viability and apoptosis after induction. Starbase predicted the binding site between lncRNA NEAT1 and miR-146b, and the targeted relationship between them was detected by dual luciferase reporter gene. The relative expression of lncRNA NEAT1 in serum of infantile pneumonia was up-regulated. Knocking down lncRNA NEAT1 promotes cell growth and reduces apoptosis in LPS-induced HFL1 cells. Results showed that the fluorescence activity of lncRNA NEAT1 obviously reduced when combined with miR-146b. In conclusion, the relative expression of miR-146b in serum of infantile pneumonia decreased, and over-expressing it could promote LPS-induced cell viability and reduce apoptosis. Taken together, this study demonstrated that the lncRNA NEAT1 regulates infantile pneumonia by sponging miR-146b.
Collapse
|
315
|
Jing R, Ma B, Qi T, Hu C, Liao C, Wen C, Shao Y, Pei C. Long Noncoding RNA OIP5-AS1 Promotes Cell Apoptosis and Cataract Formation by Blocking POLG Expression Under Oxidative Stress. Invest Ophthalmol Vis Sci 2021; 61:3. [PMID: 33006594 PMCID: PMC7545078 DOI: 10.1167/iovs.61.12.3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Purpose Cataract, a clouding of the intraocular lens, is the leading cause of blindness. The lens-expressed long noncoding RNA OIP5-AS1 was upregulated in lens epithelial cells from patients with cataracts, suggesting its pathogenic role in cataracts. We investigated the regulatory role of OIP5-AS1 in the development of cataracts as well as potential RNA binding proteins, downstream target genes, and upstream transcription factors. Methods Clinical capsules and ex vivo and in vitro cataract models were used to test OIP5-AS1 expression. Cell apoptosis was detected using Western blots, JC-1 staining, and flow cytometry. Ribonucleoprotein immunoprecipitation-qPCR was performed to confirm the interaction of OIP5-AS1 and POLG. Chromatin immunoprecipitation-qPCR was used to determine the binding of TFAP2A and the OIP5-AS1 promoter region. Results OIP5-AS1 was upregulated in cataract lenses and B3 cells under oxidative stress. OIP5-AS1 knockdown protected B3 cells from H2O2-induced apoptosis and alleviated lens opacity in the ex vivo cataract model. HuR functioned as a scaffold carrying OIP5-AS1 and POLG mRNA and mediated the decay of POLG mRNA. POLG was downregulated in the cataract lens and oxidative-stressed B3 cells, and POLG depletion decreased the mtDNA copy number and MMP, increased reactive oxygen species production, and sensitized B3 cells to oxidative stress-induced apoptosis. POLG overexpression reversed these effects. TFAP2A bound the OIP5-AS1 promoter and contributed to OIP5-AS1 expression. Conclusions We demonstrated that OIP5-AS1, activated by TFAP2A, contributed to cataract formation by inhibiting POLG expression mediated by HuR, thus leading to increased apoptosis of lens epithelial cells and aggravated lens opacity, suggesting that OIP5-AS1 is a potential target for cataract treatment.
Collapse
Affiliation(s)
- Ruihua Jing
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Bo Ma
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Tiantian Qi
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Conghui Hu
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chongbing Liao
- Center for Translational Medicine, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chan Wen
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yongping Shao
- Center for Translational Medicine, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Cheng Pei
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| |
Collapse
|
316
|
Dong K, Bai L, Tong D, Shi X, Wei S, Cai Y. Long non-coding RNA HIT000218960 is associated with poor prognosis in patients with gastric cancer. Exp Ther Med 2021; 22:694. [PMID: 34055048 PMCID: PMC8145346 DOI: 10.3892/etm.2021.10126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 02/15/2021] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been indicated to have important roles in the development of malignant tumors. In the present study, the expression of HIT000218960 in gastric cancer (GC) tissues was assessed and its clinical significance was analyzed. It was revealed that HIT000218960 was highly expressed in GC tissues and HIT000218960 levels in GC tissues from 103 cases were positively correlated with high mobility group AT-hook 2 (HMGA2) mRNA expression. Furthermore, HIT000218960 was significantly associated with tumor diameter, TNM stage, histological grade, the number of lymph nodes with metastasis and HMGA2 expression in tumor tissues of patients with GC. The results of the univariate and multivariate Cox regression analysis indicated that HIT000218960 expression was a factor affecting the prognosis of patients with GC. In addition, patients with GC with lower HIT000218960 or HMGA2 expression had more favorable 3-year survival, while HIT000218960 expression did not affect the 3-year overall survival of patients with GC with different levels of HMGA2 expression. In conclusion, HIT000218960 was highly expressed in patients with GC and was related to poor prognosis.
Collapse
Affiliation(s)
- Kunbo Dong
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Li Bai
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Deyong Tong
- Department of Oncology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Xiuna Shi
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Sirong Wei
- Department of Intervention, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| | - Yongguo Cai
- Department of Gastroenterology, The 970th Hospital of the PLA joint Logistics Support Force, Yantai, Shandong 264001, P.R. China
| |
Collapse
|
317
|
Non-coding RNA: insights into the mechanism of methamphetamine neurotoxicity. Mol Cell Biochem 2021; 476:3319-3328. [PMID: 33895910 DOI: 10.1007/s11010-021-04160-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 04/15/2021] [Indexed: 10/21/2022]
Abstract
Chronic exposure of the methamphetamine has been shown to lead to neurotoxicity in rodents and humans. The manifestations of methamphetamine neurotoxicity include methamphetamine use disorder, methamphetamine abuse, methamphetamine addiction and methamphetamine behavioral sensitization. Repeated use of methamphetamine can cause methamphetamine use disorder. The abuse and addiction of methamphetamine are growing epidemic worldwide. Repeated intermittent exposure to methamphetamine can cause behavioral sensitization. In addition, many studies have shown that changes in the expression of non-coding RNA in the ventral tegmental area and nucleus accumbens will affect the behavioral effects of methamphetamine. Non-coding RNA plays an important role in the behavioral effects of methamphetamine. Therefore, it is important to study the relationship between methamphetamine and non-coding RNA. The purpose of this review is to study the non-coding RNA associated with methamphetamine neurotoxicity to search for the possible therapeutic target of the methamphetamine neurotoxicity.
Collapse
|
318
|
Li H, Chen YK, Wan Q, Shi AQ, Wang M, He P, Tang LX. Long Non-coding RNA LINC00847 Induced by E2F1 Accelerates Non-small Cell Lung Cancer Progression Through Targeting miR-147a/IFITM1 Axis. Front Med (Lausanne) 2021; 8:663558. [PMID: 33968966 PMCID: PMC8100058 DOI: 10.3389/fmed.2021.663558] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/29/2021] [Indexed: 12/18/2022] Open
Abstract
Background: Long non-coding RNAs (lncRNAs) can remarkably regulate human malignancies in terms of the development and the progression. Previously, lncRNA LINC00847 (LINC00847) has been reported to present dysregulation in several tumors. However, the expression and function of LINC00847 in non-small cell lung cancer (NSCLC) have not been investigated. Methods: RT-qPCR was performed to determine the expressions of LINC00847 in collected tissue samples and cell lines. The clinical significance of LINC00847 was statistically analyzed. CCK-8 test, cell scratch test and trans-well test were used to evaluate the proliferation, invasion and migration abilities of NSCLC cells, respectively. The xenograft tumor model was constructed to confirm the effects of LINC00847 knockdown on NSCLC in vivo. Further, luciferase reporter assays and Western blot were performed to explore molecular mechanisms underlying the functions of LINC00847. Results: Increased expressions of LINC00847 were observed in NSCLC samples as well as cell lines. Additionally, E2F1 could be capable of directly binding to the LINC00847 promoter region, followed by promoting its expression. Clinically, LINC00847 high-expression could lead to poor prognosis of NSCLC patients. Functionally, LINC00847 knockdown noticeably repressed NSCLC cell growth and metastasis. Mechanically, miR-147a/IFITM1 axis was a downstream target of LINC00847, and silencing of miR-147a could rescue the anti-cancer effects of LINC00847 knockdown on NSCLC cell behaviors. Conclusion: Overall, up regulation of LINC00847 induced by E2F1 promoted the progression of NSCLC by modulating miR-147a/IFITM1 axis, representing a novel regulatory mechanism for NSCLC progression.
Collapse
Affiliation(s)
- Huan Li
- Department of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing, China
| | - Yao-Kai Chen
- Department of Infectious Diseases, Chongqing Public Health Medical Center, Chongqing, China
| | - Qiu Wan
- Department of Respiratory Geriatrics and Otolaryngology, Chongqing Public Health Medical Center, Chongqing, China
| | - An-Qi Shi
- Department of Respiratory Geriatrics and Otolaryngology, Chongqing Public Health Medical Center, Chongqing, China
| | - Min Wang
- Department of Respiratory Geriatrics and Otolaryngology, Chongqing Public Health Medical Center, Chongqing, China
| | - Ping He
- Department of Thoracic Surgery, Chongqing Southwest Hospital, Chongqing, China
| | - Li-Xin Tang
- Department of Respiratory Geriatrics and Otolaryngology, Chongqing Public Health Medical Center, Chongqing, China
| |
Collapse
|
319
|
Che H, Che Y, Zhang Z, Lu Q. Long Non-Coding RNA LINC01929 Accelerates Progression of Oral Squamous Cell Carcinoma by Targeting the miR-137-3p/FOXC1 Axis. Front Oncol 2021; 11:657876. [PMID: 33968763 PMCID: PMC8097103 DOI: 10.3389/fonc.2021.657876] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/22/2021] [Indexed: 12/18/2022] Open
Abstract
Recently, additional long noncoding RNAs (lncRNAs) have been identified and their possible roles were investigated in a variety of human tumors. One of these lncRNAs, LINC01929, promoted the progression of some cancers, whereas its expression and biological function in human oral squamous cell carcinoma (OSCC) remains still mostly uncertain. The LINC01929 expression in OSCC tissues or cell lines was identified via quantitative real-time polymerase chain reaction. The cell counting kit-8, transwell migration, wound-healing, and flow cytometry assays were utilized to characterize the functions of LINC01929 in OSCC cells. The interactive relationships between LINC01929 and miR-137-3p, miR-137-3p and Forkhead box C1 (FOXC1) were investigated by the dual-luciferase activity assay. Our findings demonstrated that LINC01929 was highly expressed in OSCC tissue samples and cell lines, whereas miR-137-3p expression was downregulated. LINC01929 acted as a carcinogenic lncRNA with accelerated OSCC cell proliferation, migration and invasion, and suppression of apoptosis. We further indicated that LINC01929 facilitated tumor growth in xenograft mouse models. Mechanistically, LINC01929 acted as a sponge for miR-137-3p to elevate FOXC1 expression, which is the target of miR-137-3p. In addition, downregulated miR-137-3p expression rescued the suppressive behaviors of LINC01929 knockdown on the biological behaviors of OSCC cells. Taken together, LINC01929 functioned as a tumor-promoting lncRNA via the miR-137-3p/FOXC1 axis in OSCC, suggesting novel targets for OSCC therapy.
Collapse
Affiliation(s)
- Hongze Che
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yanhai Che
- Department of Science and Education, Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhimin Zhang
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun, China
| | - Qing Lu
- Department of General Dentistry, Hospital of Stomatology, Jilin University, Changchun, China
| |
Collapse
|
320
|
Li J, Dong W, Jiang Q, Zhang F, Dong H. LINC00668 cooperated with HuR dependent upregulation of PKN2 to facilitate gastric cancer metastasis. Cancer Biol Ther 2021; 22:311-323. [PMID: 33879018 DOI: 10.1080/15384047.2021.1905138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
In China, gastric cancer (GC) ranks first in the incidence of all malignant tumors. With high recurrence and distant metastasis, GC has caused considerable mortalities. LncRNA long intergenic non-protein-coding RNA 668 (LINC00668) has been reported to be upregulated in GC cells and predict poor prognosis of GC patients. However, the mechanism of LINC00668 has not been fully investigated in GC. This study aimed to investigate the role of LINC00668 in GC. We found that LINC00668 level was upregulated in GC tissue and cells and predicted poor prognosis. Functionally, LINC00668 knockdown suppressed GC cell migration and invasion. Additionally, LINC00668 knockdown inhibited epithelial to mesenchymal transition (EMT) process. PKN2 exerts similar effects with LINC00668 in GC cells. LINC00668 knockdown suppressed tumor growth and metastasis in vivo. Mechanistically, HuR was predicted to bind with LINC00668 and protein kinase N2 (PKN2). RNA pull-down assays validated the binding between HuR and LINC00668 (or PKN2). Moreover, either silencing of LINC00668 or HuR could decrease PKN2 mRNA stability or reduce PKN2 mRNA and protein levels. Furthermore, PKN2 expression was positively correlated with LINC00668 expression and HuR expression in GC tissues, and HuR expression was positively associated with LINC00668 expression in GC tissues. Finally, rescue assays confirmed that the suppressive effect of LINC00668 silencing on cell migration, invasion, and EMT process was reversed by PKN2 overexpression or HuR upregulation. In conclusion, LINC00668 cooperated with HuR-dependent upregulation of PKN2 to facilitate gastric cancer metastasis, which may provide a potential novel insight for GC treatment.
Collapse
Affiliation(s)
- Jutang Li
- Hongqiao International Research Institution, Tong Ren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, the Second Military Medical University, Shanghai, China
| | - Wei Dong
- Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, the Second Military Medical University, Shanghai, China.,Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
| | - Qixia Jiang
- Department of Cardiology, Tong Ren Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, China
| | - Fenglian Zhang
- Department of Hematology, Tong Ren Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, China
| | - Hui Dong
- Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, the Second Military Medical University, Shanghai, China.,Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Shanghai, China
| |
Collapse
|
321
|
Wu D, Yin Z, Ji Y, Li L, Li Y, Meng F, Ren X, Xu M. Identification of novel autophagy-related lncRNAs associated with a poor prognosis of colon adenocarcinoma through bioinformatics analysis. Sci Rep 2021; 11:8069. [PMID: 33850225 PMCID: PMC8044244 DOI: 10.1038/s41598-021-87540-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 03/22/2021] [Indexed: 12/11/2022] Open
Abstract
LncRNAs play a pivotal role in tumorigenesis and development. However, the potential involvement of lncRNAs in colon adenocarcinoma (COAD) needs to be further explored. All the data used in this study were obtained from The Cancer Genome Atlas database, and all analyses were conducted using R software. Basing on the seven prognosis-related lncRNAs finally selected, we developed a prognosis-predicting model with powerful effectiveness (training cohort, 1 year: AUC = 0.70, 95% Cl = 0.57-0.78; 3 years: AUC = 0.71, 95% Cl = 0.6-0.8; 5 years: AUC = 0.76, 95% Cl = 0.66-0.87; validation cohort, 1 year: AUC = 0.70, 95% Cl = 0.58-0.8; 3 years: AUC = 0.73, 95% Cl = 0.63-0.82; 5 years: AUC = 0.68, 95% Cl = 0.5-0.85). The VEGF and Notch pathway were analyzed through GSEA analysis, and low immune and stromal scores were found in high-risk patients (immune score, cor = - 0.15, P < 0.001; stromal score, cor = - 0.18, P < 0.001) , which may partially explain the poor prognosis of patients in the high-risk group. We screened lncRNAs that are significantly associated with the survival of patients with COAD and possibly participate in autophagy regulation. This study may provide direction for future research.
Collapse
Affiliation(s)
- Dejun Wu
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Shanghai, 201399, China
| | - Zhenhua Yin
- Department of Digestive, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Shanghai, 201399, China
| | - Yisheng Ji
- First Clinical Medical College, Nanjing Medical University, Nanjing, 210029, China
| | - Lin Li
- First Clinical Medical College, Nanjing Medical University, Nanjing, 210029, China
| | - Yunxin Li
- First Clinical Medical College, Nanjing Medical University, Nanjing, 210029, China
| | - Fanqiang Meng
- Xiangya Medical College of Central South University, Changsha, 410000, Hunan, China
| | - Xiaohan Ren
- The State Key Lab of Reproductive, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Ming Xu
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Shanghai, 201399, China.
| |
Collapse
|
322
|
Wang H, Li J, Wang S, Lu X, Zhang G, Zhuang Y, Li L, Wang W, Lin P, Chen C, Wang H, Chen Q, Jiang Y, Qu J, Xu L. Contribution of structural accessibility to the cooperative relationship of TF-lncRNA in myopia. Brief Bioinform 2021; 22:6217725. [PMID: 33834194 DOI: 10.1093/bib/bbab082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 11/12/2022] Open
Abstract
Transcriptional regulation is associated with complicated mechanisms including multiple molecular interactions and collaborative drive. Long noncoding RNAs (lncRNAs) have highly structured characteristics and play vital roles in the regulation of transcription in organisms. However, the specific contributions of conformation feature and underlying molecular mechanisms are still unclear. In the present paper, a hypothesis regarding molecular structure effect is presented, which proposes that lncRNAs fold into a complex spatial architecture and act as a skeleton to recruit transcription factors (TF) targeted binding, and which is involved in cooperative regulation. A candidate set of TF-lncRNA coregulation was constructed, and it was found that structural accessibility affected molecular binding force. In addition, transcription factor binding site (TFBS) regions of myopia-related lncRNA transcripts were disturbed, and it was discovered that base mutations affected the occurrence of significant molecular allosteric changes in important elements and variable splicing regions, mediating the onset and development of myopia. The results originated from structureomics and interactionomics and created conditions for systematic research on the mechanisms of structure-mediated TF-lncRNA coregulation in transcriptional regulation. Finally, these findings will help further the understanding of key regulatory roles of molecular allostery in cell physiological and pathological processes.
Collapse
Affiliation(s)
- Hong Wang
- School of Ophthalmology & Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University and cooperates with College of Bioinformatics Science and Technology at Harbin Medical University, Wenzhou 325027, P. R. China
| | - Jing Li
- College of Bioinformatics Science and Technology at Harbin Medical University, Wenzhou 325027, P. R. China
| | - Siyu Wang
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Xiaoyan Lu
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Guosi Zhang
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Youyuan Zhuang
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Liansheng Li
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Wencan Wang
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Peng Lin
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Chong Chen
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Hao Wang
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Qi Chen
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Yongshuai Jiang
- College of Bioinformatics Science and Technology at Harbin Medical University, Wenzhou 325027, P. R. China
| | - Jia Qu
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| | - Liangde Xu
- School of Ophthalmology and Optometry and Eye Hospital, School of Biomedical Engineering at Wenzhou Medical University, Wenzhou 325027, P. R. China
| |
Collapse
|
323
|
Xu X, Xie Q, Xie M, Zeng Y, Liu Q. LncRNA SNHG8 Serves as an Oncogene in Breast Cancer Through miR-634/ZBTB20 Axis. Cancer Manag Res 2021; 13:3017-3028. [PMID: 33854372 PMCID: PMC8039051 DOI: 10.2147/cmar.s270128] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/16/2020] [Indexed: 12/14/2022] Open
Abstract
Background Small nucleolus RNA Host Gene 8 (SNHG8) belongs to a subgroup with long non-coding RNAs. LncRNA SNHG8 presents up-regulated in miscellaneous cancers, like gastric cancer, liver cancer, and esophageal squamous cell cancer. Nevertheless, the expression pattern and the pathological function of lncRNA SNHG8 in breast cancer remain obscure. Methods We examined the expression levels of lncRNA SNHG8 in the tissue samples and cell lines from breast cancer via RT-qPCR in the present study. The functions of lncRNA SNHG8 on the progression of breast cancer cell were examined by CCK-8, EdU, Transwell chamber assays, and flow cytometry analyses. The expression of proteins was assessed using Western blot assay. Results We found that proliferation, migration, and invasion of breast cancer cells were significantly inhibited due to knockdown of lncRNA SNHG8, while inducing apoptosis of these cells. Mechanistically, SNHG8 functioned as an inhibitor of miR-634 in tumor tissues. Conclusion LncRNA SNHG8 sponged the miR-634 to increase the expression level of ZBTB20, thus further aggravating the malignancy of breast cancer. Hence, the lncRNA SNHG8-miR-634-ZBTB20 axis may be a promising therapeutic target to treat breast cancers.
Collapse
Affiliation(s)
- Xianyun Xu
- Key Laboratory of Prevention and treatment of cardiovascular and cerebrovascular diseases of Ministry of Education, Jiangxi Provincial Clinical Research Center for Vascular Anomalies, Basic Medical School, Gannan Medical University, Ganzhou, Jiangxi, 341000, People's Republic of China
| | - Qiongjun Xie
- Basic Medical School, Gannan Medical University, Ganzhou, Jiangxi, 341000, People's Republic of China
| | - Mingfeng Xie
- Department of Pediatric Surgery, Jiangxi Provincial Clinical Research Center for Vascular Anomalies, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, The First Affiliate Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, People's Republic of China
| | - Yong Zeng
- Department of Pediatric Surgery, Jiangxi Provincial Clinical Research Center for Vascular Anomalies, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, The First Affiliate Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, People's Republic of China
| | - Qian Liu
- Key Laboratory of Prevention and treatment of cardiovascular and cerebrovascular diseases of Ministry of Education, Jiangxi Provincial Clinical Research Center for Vascular Anomalies, Basic Medical School, Gannan Medical University, Ganzhou, Jiangxi, 341000, People's Republic of China
| |
Collapse
|
324
|
Song S, He X, Wang J, Song H, Wang Y, Liu Y, Zhou Z, Yu Z, Miao D, Xue Y. A novel long noncoding RNA, TMEM92-AS1, promotes gastric cancer progression by binding to YBX1 to mediate CCL5. Mol Oncol 2021; 15:1256-1273. [PMID: 33247987 PMCID: PMC8024739 DOI: 10.1002/1878-0261.12863] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 10/04/2020] [Accepted: 11/24/2020] [Indexed: 12/15/2022] Open
Abstract
Numerous studies have revealed that long noncoding RNAs (lncRNAs) with oncogene properties play vital roles in gastric cancer (GC). In this study, we aimed to elucidate the function of TMEM92-AS1 in GC progression and to investigate its underlying mechanisms. TMEM92-AS1 was filtered from the Gene Expression Omnibus database. GC tissues and adjacent normal tissues were used to detect the expression level of TMEM92-AS1. MTT, colony-formation assays, Edu, cell cycle, apoptosis and subcutaneous tumour formation assays were used to detect the role of TMEM92-AS1 in cell function. RNA transcriptome sequencing was used to seek downstream target genes. Reverse transcription (RT)-qPCR, western blot, RNA and chromatin immunoprecipitation assays were used to investigate the mechanisms involved. TMEM92-AS1 was significantly overexpressed in GC tissues and correlated with poor overall survival and disease-free survival. Furthermore, TMEM92-AS1 promoted GC cell proliferation and migration in vitro and tumorigenic ability in vivo. RNA transcriptome sequence analysis revealed a potential downstream target gene, C-C motif chemokine ligand 5 (CCL5), and a mechanistic study found that TMEM92-AS1 regulated CCL5 by binding to the transcription factor Y-box binding protein 1(YBX1), which has oncogene properties. In addition, TMEM92-AS1 was found to be associated with peripheral blood leukocyte counts, especially neutrophils. Further investigation found that TMEM92-AS1 may affect leukocytes via regulation of the expression of granulocyte colony-stimulating factor in GC tissues. Our data provide an in-depth insight into the mechanism behind the lncRNA TMEM92-AS1, how it promotes GC progression and the possible mechanism in affecting peripheral leukocyte counts. Therefore, TMEM92-AS1 is a potential target for GC individualized therapy and prognostic assessment.
Collapse
Affiliation(s)
- Shubin Song
- Department of Gastrointestinal SurgeryHarbin Medical University Cancer HospitalChina
- Department of Breast SurgeryShandong Cancer Hospital and InstituteShandong First Medical University and Shandong Academy of Medical SciencesJinanChina
| | - Xuezhi He
- Department of Anatomy, Histology and EmbryologyThe Research Centre for Bone and Stem CellsNanjing Medical UniversityChina
| | - Jing Wang
- Department of Anatomy, Histology and EmbryologyState Key Laboratory of Reproductive MedicineThe Research Centre for Bone and Stem CellsNanjing Medical UniversityChina
| | - Hongtao Song
- Department of PathologyHarbin Medical University Cancer HospitalChina
| | - Yimin Wang
- Department of Gastrointestinal SurgeryHarbin Medical University Cancer HospitalChina
| | - Yansong Liu
- Department of Breast SurgeryShandong Cancer Hospital and InstituteShandong First Medical University and Shandong Academy of Medical SciencesJinanChina
| | - Zhengbo Zhou
- Department of Breast SurgeryShandong Cancer Hospital and InstituteShandong First Medical University and Shandong Academy of Medical SciencesJinanChina
| | - Zhiyong Yu
- Department of Breast SurgeryShandong Cancer Hospital and InstituteShandong First Medical University and Shandong Academy of Medical SciencesJinanChina
| | - Dengshun Miao
- The Research Centre for AgeingFriendship Affiliated Plastic Surgery Hospital of Nanjing Medical UniversityChina
| | - Yingwei Xue
- Department of Gastrointestinal SurgeryHarbin Medical University Cancer HospitalChina
| |
Collapse
|
325
|
Zhang H, Zhang N, Jiang W, Lun X. Clinical significance of the long non-coding RNA NEAT1/miR-129-5p axis in the diagnosis and prognosis for patients with chronic heart failure. Exp Ther Med 2021; 21:512. [PMID: 33791021 PMCID: PMC8005689 DOI: 10.3892/etm.2021.9943] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 02/24/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic heart failure (CHF) is the leading cause of death worldwide. The regulatory interactions of long non-coding RNA (lncRNAs) and microRNAs (miRs) have important roles in multiple diseases. However, the clinical significance of the nuclear-enriched abundant transcript 1 (NEAT1)/miR-129-5p axis in CHF has remained elusive. The present study explored whether the NEAT1/miR-129-5p axis may be a suitable diagnostic and prognostic marker for CHF. The expression of lncRNA NEAT1 and miR-129-5p in the serum of patients with CHF was analyzed by reverse transcription-quantitative PCR. Furthermore, inter-indicator correlations were assessed by Pearson correlation coefficient analysis. Receiver operating characteristic (ROC) curves were generated to evaluate the ability of NEAT1, miR-129-5p and brain natriuretic peptide (BNP) to identify patients with CHF. The prognostic value of the NEAT1/miR-129-5p axis was analyzed by drawing Kaplan-Meier survival curves and by Cox logistic regression analysis. Baseline data were not significantly different between CHF (n=70) and control subjects (n=62). The serum level of NEAT1 was increased and the expression level of miR-129-5p was decreased in patients with CHF (all P<0.001). The ROC curves suggested that serum NEAT1 and miR-129-5p were of diagnostic value in patients with CHF and the combined diagnostic accuracy of NEAT1, miR-129-5p and BNP was significantly improved. Kaplan-Meier and multivariate Cox regression analysis suggested that low NEAT1 and high miR-129-5p were able to predict overall survival of patients with CHF (all P<0.01). In conclusion, the present study indicated that patients with CHF had increased NEAT1 and decreased miR-129-5p expression. The deregulated NEAT1/miR-129-5p axis may provide novel non-invasive biomarkers for the diagnosis and prognosis of CHF.
Collapse
Affiliation(s)
- Haohua Zhang
- Department of Anesthesiology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Nianli Zhang
- Department of Anesthesiology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Wenbin Jiang
- Department of Cardiovascular Surgery, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Xiaoqin Lun
- Department of Anesthesiology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| |
Collapse
|
326
|
Yu Q, Du Y, Wang S, Zheng X. LncRNA PART1 promotes cell proliferation and inhibits apoptosis of oral squamous cell carcinoma by blocking EZH2 degradation. J Biochem 2021; 169:721-730. [PMID: 33725092 DOI: 10.1093/jb/mvab026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 01/28/2021] [Indexed: 01/06/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) have been considered as novel regulators in oral squamous cell carcinoma (OSCC). Enhancer of zeste homolog 2 (EZH2) can act as an oncogene in OSCC. This study intended to investigate whether lncRNA PART1 can exert its role in OSCC by regulating EZH2. The expression of PART1 in OSCC samples, tumors tissues, or OSCC cell lines was detected by qRT-PCR. The proliferation and apoptosis of OSCC cells were detected by CCK-8 and flow cytometry assays, respectively. The expression of PART1 and EZH2 were highly expressed in clinical OSCC tumors and cell lines. The expression level of PART1 was positively correlated to the size, clinical stage, and node metastasis of OSCC patients. Functionally, PART1 knockdown inhibited proliferation and facilitated apoptosis of OSCC cells. Mechanically, FUS interacted with PART1 and EZH2. Additionally, PART1 knockdown reduced the mRNA expression of EZH2, which was offset by FUS overexpression. The overexpression of FUS abrogated the effects of PART1 silence on proliferation and apoptosis of OSCC cells. The in vivo experiment revealed that PART1 knockdown inhibited tumor growth of OSCC cells in nude mice. This study indicated that PART1 exerts a carcinogenic role in OSCC by enhancing the stability of EZH2 protein.
Collapse
Affiliation(s)
- Qiongqiong Yu
- Department of Oral Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yajing Du
- Department of Oral Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Suping Wang
- Department of Oral Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaofei Zheng
- Department of Oral Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| |
Collapse
|
327
|
Integrated analysis of RNA-binding proteins in thyroid cancer. PLoS One 2021; 16:e0247836. [PMID: 33711033 PMCID: PMC7954316 DOI: 10.1371/journal.pone.0247836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 02/14/2021] [Indexed: 12/23/2022] Open
Abstract
Recently, the incidence of thyroid cancer (THCA) has been on the rise. RNA binding proteins (RBPs) and their abnormal expression are closely related to the emergence and pathogenesis of tumor diseases. In this study, we obtained gene expression data and corresponding clinical information from the TCGA database. A total of 162 aberrantly expressed RBPs were obtained, comprising 92 up-regulated and 70 down-regulated RBPs. Then, we performed a functional enrichment analysis and constructed a PPI network. Through univariate Cox regression analysis of key genes and found that NOLC1 (p = 0.036), RPS27L (p = 0.011), TDRD9 (p = 0.016), TDRD6 (p = 0.002), IFIT2 (p = 0.037), and IFIT3 (p = 0.02) were significantly related to the prognosis. Through the online website Kaplan-Meier plotter and multivariate Cox analysis, we identified 2 RBP-coding genes (RPS27L and IFIT3) to construct a predictive model in the entire TCGA dataset and then validate in two subsets. In-depth analysis revealed that the data gave by this model, the patient's high-risk score is very closely related to the overall survival rate difference (p = 0.038). Further, we investigated the correlation between the model and the clinic, and the results indicated that the high-risk was in the male group (p = 0.011) and the T3-4 group (p = 0.046) was associated with a poor prognosis. On the whole, the conclusions of our research this time can make it possible to find more insights into the research on the pathogenesis of THCA, this could be beneficial for individualized treatment and medical decision making.
Collapse
|
328
|
Gao YJ, Zhang RJ, Liu Q, Sun SG, Qi MY, Wang Y, Geng DD, Wang L. Functional predication of differentially expressed circRNAs/lncRNAs in the prefrontal cortex of Nrf2-knockout mice. Aging (Albany NY) 2021; 13:8797-8816. [PMID: 33714958 PMCID: PMC8034947 DOI: 10.18632/aging.202688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/01/2021] [Indexed: 12/25/2022]
Abstract
In the central nervous system, nuclear factor erythroid-2-related factor 2 (Nrf2) protects neurons from oxidant injury, thereby ameliorating neurodegeneration. We explored the key circular RNAs (circRNAs) and long non-coding RNAs (lncRNAs) involved in Nrf2-induced neuroprotection. We used microarrays to examine the circRNAs (DEcircRNAs), lncRNAs (DElncRNAs) and mRNAs (DEmRNAs) differentially expressed between Nrf2 (+/+) and Nrf2 (-/-) mice and identified DEcircRNA/DElncRNA-miRNA-DEmRNA interaction networks. In total, 197 DEcircRNAs, 685 DElncRNAs and 356 DEmRNAs were identified in prefrontal cortical tissues from Nrf2 (-/-) mice. The expression patterns of selected DEcircRNAs (except for mmu_circ_0003404) and DElncRNAs in qRT-PCR analyses were generally consistent with the microarray analysis results. Functional annotation of the DEmRNAs in the DEcircRNA/DElncRNA-miRNA-DEmRNA networks indicated that five non-coding RNAs (mmu_circ_0000233, ENSMUST00000204847, NONMMUT024778, NONMMUT132160 and NONMMUT132168) may contribute to Nrf2 activity, with the help of mmu_circ_0015035 and NONMMUT127961. The results also revealed that four non-coding RNAs (cicRNA.20127, mmu_circ_0012936, ENSMUST00000194077 and NONMMUT109267) may influence glutathione metabolism. Additionally, 44 DEcircRNAs and 7 DElncRNAs were found to possess coding potential. These findings provide clues to the molecular pathways through which Nrf2 protects neurons.
Collapse
Affiliation(s)
- Yan-Jing Gao
- Department of Human Anatomy, Institute of Medicine and Health, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Run-Jiao Zhang
- Department of Human Anatomy, Institute of Medicine and Health, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Qing Liu
- Department of Human Anatomy, Institute of Medicine and Health, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Shao-Guang Sun
- Department of Biochemistry and Molecular Biology, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Mao-Yang Qi
- School of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Yue Wang
- School of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Dan-Dan Geng
- Department of Human Anatomy, Institute of Medicine and Health, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Lei Wang
- Department of Human Anatomy, Institute of Medicine and Health, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| |
Collapse
|
329
|
Li Y, Liu X, Cui X, Tan Y, Wang Q, Wang Y, Xu C, Fang C, Kang C. LncRNA PRADX-mediated recruitment of PRC2/DDX5 complex suppresses UBXN1 expression and activates NF-κB activity, promoting tumorigenesis. Am J Cancer Res 2021; 11:4516-4530. [PMID: 33754075 PMCID: PMC7977445 DOI: 10.7150/thno.54549] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/19/2021] [Indexed: 12/18/2022] Open
Abstract
Rationale: Accumulating evidence indicates that long noncoding RNAs (lncRNAs) play crucial roles in cancer progression; however, only few have been characterized in detail. The current study aimed to identify a novel cancer driver lncRNA in glioblastoma and colon adenocarcinoma. Methods: We performed whole transcriptome analysis of TCGA pan-cancer datasets to compare the lncRNA expression profiles of tumor and paired normal tissues. In situ hybridization of tissue sections was performed to validate the expression data and determine the localization of lncRNAs that may be linked to glioblastoma and colon adenocarcinoma. Chromatin isolation by RNA purification (ChIRP), chromatin immunoprecipitation (ChIP), and Co-immunoprecipitation (Co-IP) assays were performed to assess the interaction between lncRNA, proteins, and chromatin. The functional significance of the identified lncRNAs was verified in vitro and in vivo by knockdown or exogenous expression experiments. Results: We found a lncRNA ENST00000449248.1 termed PRC2 and DDX5 associated lncRNA (PRADX) that is highly expressed in glioblastoma and colon adenocarcinoma cells and tissues. PRADX, mainly located in the nucleus of tumor cells, could bind to EZH2 protein via the 5' terminal sequence. Moreover, PRADX increased the trimethylation of H3K27 in the UBXN1 gene promoter via PRC2/DDX5 complex recruitment and promoted NF-κB activity through UBXN1 suppression. Knockdown of PRADX significantly inhibited tumor cell viability and clonogenic growth in vitro. In xenograft models, PRADX knockdown suppressed tumor growth and tumorigenesis and prolonged the survival of tumor-bearing mice. Conclusions: PRADX acts as a cancer driver and may serve as a potential therapeutic target for glioblastoma and colon adenocarcinoma.
Collapse
|
330
|
Hao H, Chen H, Xie L, Liu H, Wang D. LncRNA KCNQ1OT1 Promotes Proliferation, Invasion and Metastasis of Prostate Cancer by Regulating miR-211-5p/CHI3L1 Pathway. Onco Targets Ther 2021; 14:1659-1671. [PMID: 33688211 PMCID: PMC7937373 DOI: 10.2147/ott.s288785] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/28/2021] [Indexed: 12/18/2022] Open
Abstract
Background Bone metastasis after failure of castration therapy is the main reason of death in patients with prostate cancer (PCa). Therefore, full awareness of the metastasis mechanism of PCa and discovery of new therapeutic targets are necessary. Studies showed that lncRNA was involved in the development of cancer. However, its potential role and molecular mechanism in PCa metastasis are still unclear. YKL-40 is an 18 glycosyl hydrolase family protein encoded by CHI3L1, which is involved in the invasion and metastasis of various tumors. A previous study of the authors found that YKL-40 was related to the invasion and metastasis of PCa cells. However, the cause of its abnormal expression in PCa remains unclear. The present study explored the role of lncRNA KCNQ1OT1/miR-211-5p/CHI3L1 regulatory axis in the proliferation, invasion, and metastasis of PCa. Methods RT-PCR and Western blot were used to measure the expression profiles of KCNQ1OT1 and YKL. CCK-8 and Transwell assays were used to examine their effects on cell proliferation and migration. Double luciferase reporter assay was used to verify the interactions between miR-211-5p and CHI3L1 3′-UTR. Results KCNQ1OT1 expression was upregulated in PCa tissues and cells. Downregulating this expression inhibited PCa cell invasion, proliferation, and metastasis. KCNQ1OT1 bound miR-211-5p competitively, and miR-211-5p targeted CHI3L1 3′-UTR. miR-211-5p expression was downregulated, whereas CHI3L1 (YKL-40) expression was upregulated. miR-211-5p levels were negatively correlated with KCNQ1OT1 expression and CHI3L1 mRNA. The decrease in YKL-40 expression in PCa cells induced by the downregulation of KCNQ1OT1 expression could be offset by miR-211-5p inhibitor transfection. Conclusion This study showed that lncRNA KCNQ1OT1, as a ceRNA, upregulated CHI3L1 and promoted PCa progression through competitive binding to miR-211-5p.
Collapse
Affiliation(s)
- Hailong Hao
- Department of Urology, Shanxi Cancer Hospital, Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Huiqing Chen
- Department of Urology, Shanxi Cancer Hospital, Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Liwu Xie
- Department of Pathology, Shanxi Cancer Hospital, Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Hongyu Liu
- Department of Urology, Shanxi Cancer Hospital, Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Dongwen Wang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, People's Republic of China
| |
Collapse
|
331
|
|
332
|
Yan D, Wu F, Peng C, Wang M. Silencing of LINC00284 inhibits cell proliferation and migration in oral squamous cell carcinoma by the miR-211-3p/MAFG axis and FUS/KAZN axis. Cancer Biol Ther 2021; 22:149-163. [PMID: 33618612 DOI: 10.1080/15384047.2021.1877864] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is one of the most common malignancies worldwide. Emerging evidence has suggested that long noncoding RNAs (lncRNAs) play vital roles in various biological processes of cancers, such as cell proliferation, migration, invasion, and apoptosis. As reported previously, long intergenic non-protein coding RNA 284 (LINC00284) is an important regulator in multiple cancers. However, the biological role, as well as regulatory mechanism of LINC00284 in OSCC, has not been investigated. In our study, RT-qPCR results indicated that LINC00284 was significantly upregulated in OSCC tissues and cells. Moreover, loss-of-function experiments demonstrated that LINC00284 downregulation suppressed cell proliferation and migration and facilitated cell apoptosis. Mechanistically, we found that LINC00284 sponged microRNA 211-3p (miR-211-3p) to upregulate MAF bZIP transcription factor G (MAFG) expression in OSCC cells. Additionally, LINC00284 interacted with FUS protein to increase KAZN mRNA stability. Functional assays showed that either MAFG or KAZN overexpression promoted the malignant behaviors of OSCC cells. Through a series of rescue assays, we found that the inhibitory effect of silencing LINC00284 on OSCC cells can be reversed by upregulated MAFG and KAZN. Overall, silencing LINC00284 inhibits the malignant characteristics of OSCC cells by downregulating MAFG and inhibiting the binding of FUS to KAZN mRNA.
Collapse
Affiliation(s)
- Dayong Yan
- Department of Oral and Maxillofacial Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Fuhua Wu
- Department of Stomatology, Dezhou People's Hospital, Dezhou, Shandong, China
| | - Caixia Peng
- Department of Oral and Maxillofacial Surgery, Dezhou People's Hospital, Dezhou, Shandong, China
| | - Mei Wang
- Department of Stomatology, Dezhou People's Hospital, Dezhou, Shandong, China
| |
Collapse
|
333
|
Long non-coding RNA LINC02446 suppresses the proliferation and metastasis of bladder cancer cells by binding with EIF3G and regulating the mTOR signalling pathway. Cancer Gene Ther 2021; 28:1376-1389. [PMID: 33526846 DOI: 10.1038/s41417-020-00285-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 11/22/2020] [Accepted: 12/07/2020] [Indexed: 12/24/2022]
Abstract
Accumulating evidence has been obtained to understand the mechanisms of long non-coding RNAs (lncRNAs) in bladder cancer (BC). However, due to the recurrence and metastasis of BC, searching for lncRNAs that are related to prognosis and metastasis and exploring the pathogenesis of BC might provide new insights for the treatment of BC. In the present study, we used the TCGA and GEO databases and identified LINC02446 as associated with prognosis and differentially expressed in bladder cancer tissues and para-cancer tissues. Then, we found that LINC02446 could affect the proliferation, migration and invasion of BC cells. Additionally, we found that LINC02446 could bind to the EIF3G protein and regulate the protein stability of EIF3G and then inhibit the mTOR signalling pathway. In summary, all these findings show that LINC02446 might serve as a promising therapeutic target for BC intervention.
Collapse
|
334
|
Yuan S, Si W, Zhuang K, Li Y, Zhang Y, Liu J, Yang L, Zhang X. LncRNA UCID Promotes Hepatocellular Carcinoma Metastasis via Stabilization of Snail. Onco Targets Ther 2021; 14:725-736. [PMID: 33536764 PMCID: PMC7850577 DOI: 10.2147/ott.s277951] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 11/27/2020] [Indexed: 01/05/2023] Open
Abstract
Background LncRNAs are functional regulators in tumor progression which act by regulating mRNAs in multiple types of cancer. However, the effect of lnc-UCID on hepatocellular carcinoma (HCC) metastasisremains unclear. Methods Lnc-UCID expression was quantified in HCC tissues and HCC cell lines by qRT-PCR. HCC cell lines with lnc-UCID knockdown were established by lentivirus transduction. The migration and invasion abilities of HCC cells were analyzed by Transwell and wound-healing assays. Protein expression of epithelial–mesenchymal transition (EMT)-related factors was examined by Western blot assay. Dual-luciferase assays and actinomycin D treatment were conducted to explore the relationship between lnc-UCID and Snail mRNA. The direct interaction between lnc-UCID and Snail mRNA was subjected to quantification analysis by biotinylated lnc-UCID pulldown assays. Pearson’s correlation coefficient was used to analyze correlations between lnc-UCID and Snail expression level in clinical samples. Rescue experiments were performed to uncover the role of Snail in the HCC metastasis process. Results Lnc-UCID was upregulated in human HCC tissues and HCC cell lines. Lnc-UCID promoted the cells’ mobility and invasiveness by enhancing the EMT process of HCC cells. The expression of Snail positively correlated with lnc-UCID abundance, and the interaction between lnc-UCID and Snail mRNA prevented miR-122, miR-203, miR-30b, miR-34a or miR-153 binding to the 3ʹ-UTR of Snail. Transfection of Snail greatly rescued the migration and invasion of HCC cells. Conclusion Lnc-UCID was upregulated in clinical HCC samples and directly interacted with Snail mRNA to enhance the stability of Snail mRNA, thus promoting the EMT process to accelerate HCC metastasis.
Collapse
Affiliation(s)
- Shanshan Yuan
- Department of Gastroenterology, The Affiliated Xi'an Central Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.,Department of Gastroenterology, Xi'an Central Hospital, Xi'an, Shaanxi, People's Republic of China
| | - Wangli Si
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, Shaanxi, People's Republic of China
| | - Kun Zhuang
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, Shaanxi, People's Republic of China
| | - Yijun Li
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, Shaanxi, People's Republic of China
| | - Yanting Zhang
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, Shaanxi, People's Republic of China
| | - Jiaming Liu
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, Shaanxi, People's Republic of China
| | - Li Yang
- Department of Ultrasonography, The Affiliated Children's Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China
| | - Xin Zhang
- Department of Gastroenterology, Xi'an Central Hospital, Xi'an, Shaanxi, People's Republic of China
| |
Collapse
|
335
|
Zhang GF, Zhou BS, An XC, An FM, Li SH. LINC01278 is Highly Expressed in Osteosarcoma and Participates in the Development of Tumors by Mediating the miR-134-5p/KRAS Axis. Onco Targets Ther 2021; 14:683-695. [PMID: 33531816 PMCID: PMC7847385 DOI: 10.2147/ott.s265591] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 12/08/2020] [Indexed: 12/18/2022] Open
Abstract
Purpose There is increasing evidence that non-coding RNAs (ncRNAs), including long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), produce a critical regulatory effect on osteosarcoma (OS). LINC01278, as a newly discovered lncRNA, is found to be highly expressed in OS, but its related mechanism remains unclear. This research, therefore, is designed to study the mechanism of LINC01278 in OS and to find potential targets for clinical use. Methods qRT-PCR was applied to determine the relative expression of LINC01278 and analyze its diagnostic value in OS. CCK-8, Transwell and flow cytometry were utilized for the determination of cell proliferation, migration/invasion, and apoptosis. RIP and RNA pull-down experiments were used to verify the targeted binding effect of miR-134-5p and LINC01278. The relationship between miR-134-5p and LINC01278 or KRAS was analyzed using dual luciferase reporter gene. The effects of LINC01278 on tumor growth in nude mice was analyzed by in vivo experiment. Results qRT-PCR showed that LINC01278 increased in OS tissues and serum, indicating poor prognosis. In addition, LINC01278 was also of high value for OS diagnosis. Functional experiments showed that LINC01278 inhibited KRAS-mediated OS cell proliferation and metastasis through miR-134-5p. Finally, the results of an in vivo animal model indicated that LINC01278 promoted OS growth. Conclusion LINC01278 is expressed highly in OS, and patients with high LINC01278 expression have poor prognosis. Moreover, LINC01278 can suppress the proliferation and apoptosis of OS cells through mediating miR-134-5p/KRAS axis, which is expected to become a potential therapeutic target for OS.
Collapse
Affiliation(s)
- Guo-Feng Zhang
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Bai-Sui Zhou
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Xiao-Chun An
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Feng-Min An
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Shan-Hui Li
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| |
Collapse
|
336
|
Lin QY, Qi QL, Hou S, Chen Z, Zhang L, Zhao HG, Lin CH. LncRNA PVT1 Acts as a Tumor Promoter in Thyroid Cancer and Promotes Tumor Progression by Mediating miR-423-5p-PAK3. Cancer Manag Res 2021; 12:13403-13413. [PMID: 33408513 PMCID: PMC7779291 DOI: 10.2147/cmar.s283443] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/05/2020] [Indexed: 01/05/2023] Open
Abstract
Introduction Thyroid cancer (TC) is an endocrine tumor whose risk of onset has been rising, so the deep understanding of its molecular mechanism helps formulate new treatment strategies. Methods This paper was aimed at exploring the regulatory mechanism of long non-coding RNA (LncRNA) plasmacytoma variant translocation 1 (PVT1) in TC. The expression of PVT1, miR-423-5p and p21-activated kinase 3 (PAK3) in TC tissues and cell lines was detected by real-time PCR. PAK3 levels were detected by Western blot. Regulatory relationships between target genes and the proliferation, invasion and apoptosis of cells and genes were analyzed. Results PVT1 and PAK3 upregulated while miR-423-5p downregulated in the tissues and cell lines. PVT1 downregulation inhibited TC cells from malignantly proliferating and invading, and promoted their apoptosis. PVT1 specifically regulated miR-423-5p, and its overexpression could weaken the anti-tumor effect of this miR on TC cells. In addition, miR-423-5p directly targeted PAK3, and knocking down its expression could weaken the inhibitory effect of PAK3 downregulation on TC progression. Besides, PVT1 acted as a competitive endogenous RNA to sponge this miR and thus regulate PAK3 expression. Discussion In conclusion, PVT1 can mediate the molecular mechanism of the miR-423-5p-PAK3 axis regulatory network on regulating TC, so it is a new direction of treating the disease.
Collapse
Affiliation(s)
- Qiu-Yu Lin
- Nuclear Medicine Department, The First Hospital of Jilin University, Changchun City 130000, Jilin Province, People's Republic of China
| | - Qian-Le Qi
- Nuclear Medicine Department, The First Hospital of Jilin University, Changchun City 130000, Jilin Province, People's Republic of China
| | - Sen Hou
- Nuclear Medicine Department, The First Hospital of Jilin University, Changchun City 130000, Jilin Province, People's Republic of China
| | - Zhen Chen
- Chengdu Xinke Pharmaceutical Co., LTD, Chengdu City 610000, Sichuan Province, People's Republic of China
| | - Laney Zhang
- Biological Sciences at Cornell University (2022), Ithaca, NY, USA
| | - Hong-Guang Zhao
- Nuclear Medicine Department, The First Hospital of Jilin University, Changchun City 130000, Jilin Province, People's Republic of China
| | - Cheng-He Lin
- Nuclear Medicine Department, The First Hospital of Jilin University, Changchun City 130000, Jilin Province, People's Republic of China
| |
Collapse
|
337
|
Wang C, Zou H, Chen A, Yang H, Yu X, Yu X, Wang Y. C-Myc-activated long non-coding RNA PVT1 enhances the proliferation of cervical cancer cells by sponging miR-486-3p. J Biochem 2021; 167:565-575. [PMID: 31943014 DOI: 10.1093/jb/mvaa005] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/06/2020] [Indexed: 12/18/2022] Open
Abstract
Cervical cancer is one of the most prevalent gynecological malignancies. Although the functions of long non-coding RNA (lncRNA) plasmacytoma variant translocation 1 (PVT1) and c-Myc in tumorigenesis have been acknowledged, the roles of c-Myc and lncRNA-PVT1 in the proliferation of cervical cancer are still unclear. Our study is designed to demonstrate the regulatory network involving c-Myc and lncRNA-PVT1 in cervical cancer. Quantitative real-time PCR and western blot assays were performed in our research to estimate the expression levels of RNA and proteins. CCK8 assays were applied to demonstrate the viability of HeLa and SiHa cells. Immunofluorescence assay was then used to investigate the co-localization of lncRNA-PVT1 and miR-486-3p. Binding of c-Myc to the promoter region of PVT1 was identified by ChIP-assay. Functionally, upregulation of lncRNA-PVT1 enhanced the proliferation and viability of cervical cancer cells. Mechanistically, lncRNA-PVT1 sponged miR-486-3p and released its repression of extracellular matrix protein 1. Besides, c-Myc functioned as an activator of lncRNA-PVT1 and upregulated its expression by binding to the promoter of PVT1 in cervical cancer cells. lncRNA-PVT1 was upregulated by c-Myc and thus enhanced the proliferation of cervical cancer cells by sponging miR-486-3p.
Collapse
Affiliation(s)
- Chang Wang
- Department of Gynecology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Shinan District, Qingdao 266000, Shandong, China
| | - Hao Zou
- Department of Hepatopancreatobiliary Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Shinan District, Qingdao 266000, Shandong, China
| | - Aiping Chen
- Department of Gynecology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Shinan District, Qingdao 266000, Shandong, China
| | - Hongjuan Yang
- Department of Gynecology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Shinan District, Qingdao 266000, Shandong, China
| | - Xinping Yu
- Department of Gynecology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Shinan District, Qingdao 266000, Shandong, China
| | - Xiao Yu
- Department of Gynecology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Shinan District, Qingdao 266000, Shandong, China
| | - Yankui Wang
- Department of Gynecology, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Shinan District, Qingdao 266000, Shandong, China
| |
Collapse
|
338
|
Sebastian-delaCruz M, Gonzalez-Moro I, Olazagoitia-Garmendia A, Castellanos-Rubio A, Santin I. The Role of lncRNAs in Gene Expression Regulation through mRNA Stabilization. Noncoding RNA 2021; 7:ncrna7010003. [PMID: 33466464 PMCID: PMC7839045 DOI: 10.3390/ncrna7010003] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 12/12/2022] Open
Abstract
mRNA stability influences gene expression and translation in almost all living organisms, and the levels of mRNA molecules in the cell are determined by a balance between production and decay. Maintaining an accurate balance is crucial for the correct function of a wide variety of biological processes and to maintain an appropriate cellular homeostasis. Long non-coding RNAs (lncRNAs) have been shown to participate in the regulation of gene expression through different molecular mechanisms, including mRNA stabilization. In this review we provide an overview on the molecular mechanisms by which lncRNAs modulate mRNA stability and decay. We focus on how lncRNAs interact with RNA binding proteins and microRNAs to avoid mRNA degradation, and also on how lncRNAs modulate epitranscriptomic marks that directly impact on mRNA stability.
Collapse
Affiliation(s)
- Maialen Sebastian-delaCruz
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, 48940 Leioa, Spain; (M.S.-d.); (A.O.-G.); (A.C.-R.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
| | - Itziar Gonzalez-Moro
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
- Department of Biochemistry and Molecular Biology, University of the Basque Country, 48940 Leioa, Spain
| | - Ane Olazagoitia-Garmendia
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, 48940 Leioa, Spain; (M.S.-d.); (A.O.-G.); (A.C.-R.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
| | - Ainara Castellanos-Rubio
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, 48940 Leioa, Spain; (M.S.-d.); (A.O.-G.); (A.C.-R.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Izortze Santin
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
- Department of Biochemistry and Molecular Biology, University of the Basque Country, 48940 Leioa, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-94-601-32-09
| |
Collapse
|
339
|
Hao YQ, Liu KW, Zhang X, Kang SX, Zhang K, Han W, Li L, Li ZH. GINS2 was regulated by lncRNA XIST/miR-23a-3p to mediate proliferation and apoptosis in A375 cells. Mol Cell Biochem 2021; 476:1455-1465. [PMID: 33389496 DOI: 10.1007/s11010-020-04007-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/26/2020] [Indexed: 10/22/2022]
Abstract
Melanoma ranks second in aggressive tumors, and the occurrence of metastasis in melanoma results in a persistent drop in the survival rate of patients. Therefore, it is very necessary to find a novel therapeutic method for treating melanoma. It has been reported that lncRNA XIST could promote the tumorigenesis of melanoma. However, the mechanism by which lncRNA XIST regulates the progression of melanoma remains unclear. The proliferation of A375 cells was measured by clonal formation. Cell viability was detected by MTT assay. Flow cytometry was performed to detect cell apoptosis and cycle. The level of GINS2, miR-23a-3p, and lncRNA XIST was investigated by qRT-PCR. Protein level was detected by Western blot, and the correctness of prediction results was confirmed by Dual luciferase. In present study, GINS2 and lncRNA XIST were overexpressed in melanoma, while miR-23a-3p was downregulated. Silencing of GINS2 or overexpression of miR-23a-3p reversed cell growth and promoted apoptosis in A375 cells. Mechanically, miR-23a-3p directly targeted GINS2, and XIST regulated GINS2 level though mediated miR-23a-3p. Moreover, XIST exerted its function on cell proliferation, cell viability, and promoted the cell apoptosis of A375 cells though miR-23a-3p/GINS2 axis. LncRNA XIST significantly promoted the tumorigenesis of melanoma via sponging miR-23a-3p and indirectly targeting GINS2, which can be a potential new target for treating melanoma.
Collapse
Affiliation(s)
- Yu-Qin Hao
- Department of Dermatology, Peking University Third Hospital, Beijing, 100191, People's Republic of China.,Department of Dermatology, Third Affiliated Hospital of Inner Mongolia Medical University, Baotou, 014010, People's Republic of China
| | - Ke-Wei Liu
- Department of Dermatology, Mental Health Center of Inner Mongolia Autonomous Region, Hohhot, 010000, People's Republic of China
| | - Xin Zhang
- Department of Dermatology, Halison International Peace Hospital, Hengshui, 053000, People's Republic of China
| | - Shu-Xia Kang
- Department of Dermatology, People's Hospital Affiliated to Inner Mongolia Medical University, Hohhot, 010000, People's Republic of China
| | - Kun Zhang
- Department of Hematology, The Second Affiliated Hospital of Baotou Medical College, Baotou, 014010, People's Republic of China
| | - Wurihan Han
- Inner Mongolia Medical University, Hohhot, 010000, People's Republic of China
| | - Li Li
- Inner Mongolia Medical University, Hohhot, 010000, People's Republic of China
| | - Zhe-Hai Li
- Department of Orthopedics, Peking University Third Hospital, Beijing, 100191, People's Republic of China.
| |
Collapse
|
340
|
Xu J, Liu L, Gan L, Hu Y, Xiang P, Xing Y, Zhu J, Ye S. Berberine Acts on C/EBPβ/lncRNA Gas5/miR-18a-5p Loop to Decrease the Mitochondrial ROS Generation in HK-2 Cells. Front Endocrinol (Lausanne) 2021; 12:675834. [PMID: 34526965 PMCID: PMC8435884 DOI: 10.3389/fendo.2021.675834] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/02/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Berberine (BBR) has therapeutic effect on diabetic nephropathy (DN), but its molecular mechanism is not completely clear. METHODS The DN model was established to observe the therapeutic effect of BBR. The expression levels of lncRNA Gas5 were detected by PCR. The transcriptional regulation of CCAAT enhancer binding protein beta (C/EBPβ) on Gas5 was analyzed by chromatin immunoprecipitation quantitative PCR (ChIP-qPCR) and luciferase reporter gene assay. The targeted regulation between Gas5 and miR-18a-5p and between miR-18a-5p and C/EBPβ 3'-untranslated region (3'-UTR) was also analyzed. RESULTS In HG environment, BBR decreased the mitochondrial reactive oxygen species (ROS) generation and activated the C/EBPβ expression in HK-2 cells; C/EBPβ could combine with the reaction element on the promoter of Gas5 to promote its expression. Gas5 also inhibited the miR-18a-5p expression as competing endogenous RNA (ceRNA) and reduce the negative regulatory effect of miR-18a-5p on C/EBPβ. BBR could activate C/EBPβ/peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) signal pathway, regulate mitochondrial energy metabolism, and inhibit ROS production and apoptosis by activating C/EBPβ/Gas5/miR-18a-5p positive feedback loop in HG environment. It also showed that BBR alleviated streptozotocin (STZ) induced renal injury in DN rats in vivo. CONCLUSIONS This study suggested that BBR could regulate the mitochondrial ROS generation by activating the positive feedback loop of C/EBPβ/Gas5/miR-18a-5p.
Collapse
Affiliation(s)
- Jiang Xu
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Linqing Liu
- Department of Geriatrics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Lin Gan
- Department of Microbiology, Anhui Medical University, Hefei, China
| | - Yuanyuan Hu
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ping Xiang
- Department of Urology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yan Xing
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jie Zhu
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shandong Ye
- Department of Endocrinology, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Shandong Ye,
| |
Collapse
|
341
|
Wang G, Yang Y, Ma H, Shi L, Jia W, Hao X, Liu W. LncRNA FENDRR Inhibits ox-LDL Induced Mitochondrial Energy Metabolism Disorder in Aortic Endothelial Cells via miR-18a-5p/PGC-1 α Signaling Pathway. Front Endocrinol (Lausanne) 2021; 12:622665. [PMID: 33912133 PMCID: PMC8072360 DOI: 10.3389/fendo.2021.622665] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/12/2021] [Indexed: 12/15/2022] Open
Abstract
Atherosclerosis (AS) is the main cause of morbidity and mortality in the world. Mitochondrial dysfunction is closely related to AS. At present, several signaling pathways related to mitochondrial dysfunction have been found, one of which is around PGC-1α. PGC-1α is a transcription activator, which is related to mitochondrial biogenesis and antioxidant defense. In this study, we explored the effect of miR-18a-5p/PGC-1α signaling pathway on mitochondrial energy metabolism in HAECs with ox-LDL treatment. The results showed that the mitochondrial energy metabolism disorder in HAECs treated by ox-LDL was related to the downregulation of LncRNA FENDRR and PGC-1α. FENDRR could reverse ox-LDL induced mitochondrial energy metabolism disorder and upregulate the PGC-1α expression. FENDRR could be used as ceRNA to inhibit the miR-18a-5p expression and reduce the negative regulation of miR-18a-5p on PGC-1α. Downregulation of miR-18a-5p expression or upregulation of PGC-1α in ox-LDL treated HAECs could reverse mitochondrial energy metabolism disorder. In conclusion, these findings suggested that FENDRR/miR-18a-5p/PGC-1α signaling pathway regulated mitochondrial energy metabolism in HAECs; ox-LDL downregulated the expression of PGC-1α and cause mitochondrial energy metabolism disorder by inhibiting this signal pathway.
Collapse
|
342
|
Liu Y, Zhang B, Cao WB, Wang HY, Niu L, Zhang GZ. Study on Clinical Significance of LncRNA EGOT Expression in Colon Cancer and Its Effect on Autophagy of Colon Cancer Cells. Cancer Manag Res 2020; 12:13501-13512. [PMID: 33408522 PMCID: PMC7781029 DOI: 10.2147/cmar.s285254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 11/16/2020] [Indexed: 12/16/2022] Open
Abstract
Background Colon cancer (CC) is a common digestive tract tumor, and the increase of new and dead patients every year still puzzles clinical workers. LncRNA eosinophil granule ontogeny transcript (EGOT), as a newly discovered long-chain noncoding RNA (lncRNA), is differentially expressed in other tumors, but there are fewer studies of it in colon cancer. Methods The relative expression and diagnostic value of EGOT in CC were detected and analyzed by starBase online website and qRT-PCR. The patients were followed-up for five years, and Cox regression was used to analyze the independent prognostic factors of CC. The effects of EGOT overexpression (pcDNA-RGOT) on CC cell function were detected by CCK-8, transwell and flow cytometry. WB was applied to detect autophagy. The influence of knocking out EGOT (sh-EGOT) on tumor growth was observed by tumor allogeneic inhibition. The microRNA (miR) and mRNA in the downstream of EGOT were predicted and the ceRNA network map was drawn. Results The online database and qRT-PCR detection showed that EGOT was highly expression in patients with CC and had good diagnostic value. The five-year survival rate of patients with high expression of EGOT decreased. EGOT and TNM staging were independent prognostic factors of patients with CC. Functional analysis revealed that the growth and invasion abilities of cells increased, and the apoptosis rate decreased after overexpression. Upregulation of EGOT inhibited autophagy of CC cells and promoted cell growth. However, the tumor in nude mice was significantly lessened after knockout of EGOT. Bioinformatic analysis showed that microRNA-33a-5p and microRNA-33b-5p had targeted binding sites with EGOT. Conclusion EGOT is highly expressed in CC and has high diagnostic value. In addition, inhibition of EGOT can promote autophagy of CC cells and inhibit cell growth and metastasis, which is expected to be a potential therapeutic index.
Collapse
Affiliation(s)
- Yang Liu
- Department of General Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan City, Hebei Province 063000, People's Republic of China
| | - Bo Zhang
- Department of General Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan City, Hebei Province 063000, People's Republic of China
| | - Wen-Bin Cao
- Department of General Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan City, Hebei Province 063000, People's Republic of China
| | - Hai-Yan Wang
- Department of Oncology, The 982 Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Tangshan City, Hebei Province 063000, People's Republic of China
| | - Lei Niu
- Department of Respiratory Medicine, Tangshan Hong Ci Hospital Co. Ltd, Tangshan City, Hebei Province 063000, People's Republic of China
| | - Guo-Zhi Zhang
- Department of General Surgery, North China University of Science and Technology Affiliated Hospital, Tangshan City, Hebei Province 063000, People's Republic of China
| |
Collapse
|
343
|
Hu DJ, Li ZY, Zhu YT, Li CC. Overexpression of long noncoding RNA ANRIL inhibits phenotypic switching of vascular smooth muscle cells to prevent atherosclerotic plaque development in vivo. Aging (Albany NY) 2020; 13:4299-4316. [PMID: 33411680 PMCID: PMC7906209 DOI: 10.18632/aging.202392] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 11/05/2020] [Indexed: 01/30/2023]
Abstract
Background: Phenotypic switching of vascular smooth muscle cells (VSMCs) plays a key role in atherosclerosis. Long noncoding RNA ANRIL (lncRNA-ANRIL) is critical in vascular homeostasis. Metformin produces multiple beneficial effects in atherosclerosis. However, the underlying mechanisms need to be elucidated. Methods and Results: Metformin increased lncRNA-ANRIL expression and AMPK activity in cultured VSMCs, and inhibited the phenotypic switching of VSMCs to the synthetic phenotype induced by platelet-derived growth factor (PDGF). Overexpression of lncRNA-ANRIL inhibited phenotypic switching and reversed the reduction of AMPK activity in PDGF-treated VSMCs. While, gene knockdown of lncRNA-ANRIL by adenovirus or silence of AMPKγ through siRNA abolished AMPK activation induced by metformin in VSMCs. RNA-immunoprecipitation analysis indicated that the affinity of lncRNA-ANRIL to AMPKγ subunit was increased by metformin. In vivo, administration of metformin increased the levels of lncRNA-ANRIL, suppressed VSMC phenotypic switching, and prevented the development of atherosclerotic plaque in Apoe-/- mice fed with western diet. These protective effects of metformin were abolished by infecting Apoe-/- mice with adenovirus expressing lncRNA-ANRIL shRNA. The levels of AMPK phosphorylation, AMPK activity, and lncRNA-ANRIL expression were decreased in human atherosclerotic lesions. Conclusion: Metformin activates AMPK to suppress the formation of atherosclerotic plaque through upregulation of lncRNA-ANRIL.
Collapse
Affiliation(s)
- Da-Jun Hu
- Department of Cardiology, The First People's Hospital of Chenzhou, Chenzhou 423000, China
| | - Zhen-Yu Li
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yuan-Ting Zhu
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chuan-Chang Li
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| |
Collapse
|
344
|
Wang Y, Zhang B, Gao G, Zhang Y, Xia Q. Long Non-Coding RNA LINC00355 Promotes the Development and Progression of Colorectal Cancer by Elevating Guanine Nucleotide Exchange Factor T Expression via RNA Binding Protein lin-28 Homolog A. Front Oncol 2020; 10:582669. [PMID: 33381451 PMCID: PMC7769380 DOI: 10.3389/fonc.2020.582669] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 11/09/2020] [Indexed: 12/23/2022] Open
Abstract
Background Our previous study showed that guanine nucleotide exchange factor T (GEFT) was highly expressed in colorectal cancer (CRC) tissues and CRC patients with high GEFT expression had a poor prognosis, and suggested the close link of GEFT expression and CRC tumorigenesis/metastasis. In this text, the roles and upstream regulatory mechanisms of GEFT in the development and progression of CRC were further investigated. Methods Expression levels of GEFT mRNA and LINC00355 was measured by RT-qPCR assay. Protein levels of lin-28 homologue A (LIN28A) and GEFT were determined by western blot assay. Cell proliferative, migratory, and invasive capacities were assessed by CCK-8, Transwell migration and invasion assays, respectively. The effect of GEFT knockdown on CRC tumorigenesis was examined by mouse xenograft experiments in vivo. GEFT mRNA stability was examined by actinomycin D assay. The relationships of LINC000355, LIN28A, and GEFT were explored by RNA pull down and RIP assays. Results GEFT was highly expressed in CRC tissues and cell lines. GEFT knockdown inhibited CRC cell proliferation, migration, and invasion, and hindered CRC xenograft tumor growth. GEFT overexpression alleviated the detrimental effects of LINC00355 loss on CRC cell proliferation, migration, and invasion. LINC00355 promoted GEFT expression and enhanced GEFT mRNA stability via LIN28A. LIN28A knockdown weakened the promotive effect of LINC00355 on CRC cell proliferation, migration, and invasion. Conclusion LINC00355 facilitated CRC tumorigenesis and progression by increasing GEFT expression via LIN28A, deepening our understanding on roles and upstream regulatory mechanisms of GEFT in CRC development and progression.
Collapse
Affiliation(s)
- Yuanyuan Wang
- Department of Pathology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Bing Zhang
- Department of Pathology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Ge Gao
- Department of Pathology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Yinping Zhang
- Department of Pathology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Qingxin Xia
- Department of Pathology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| |
Collapse
|
345
|
Du Z, Xiao X, Uversky VN. DeepA-RBPBS: A hybrid convolution and recurrent neural network combined with attention mechanism for predicting RBP binding site. J Biomol Struct Dyn 2020; 40:4250-4258. [PMID: 33272122 DOI: 10.1080/07391102.2020.1854861] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
It's important to infer the binding site of RNA-binding proteins (RBP) for understanding the interaction between RBP and its RNA targets and decipher the mechanisms of transcriptional regulation. However, experimental detection of RBP binding sites is still time-intensive and expensive. Algorithms based on machine learning can speed up detection of RBP binding sites. In this article, we propose a new deep learning method, DeepA-RBPBS, which can use RNA sequences and structural features to predict RBP binding site. DeepA-RBPBS uses CNN and BiGRU to extract sequences and structural features without long-term dependence issues. It also utilizes an attention mechanism to enhance the contribution of key features. The comparison shows that the performance of DeepA-RBPBS is better than that of the state-of-the-art predictors. In the testing on 31 datasets of CLIP-seq experiments over 19 proteins, MCC (AUC) is 8% (5%) higher than those of the latest method based on deep learning, iDeepS. We also apply DeepA-RBPBS to the target RNA data of RBPs related to diabetes (LIN28, RBFOX2, FTO, IGF2BP2, CELF1 and HuR). The results show that DeepA-RBPBS correctly predicted 41,693 samples, where iDeepS predicted 31,381 samples.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Zhihua Du
- Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, P.R. China
| | - Xiangdong Xiao
- Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, P.R. China
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.,USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.,Laboratory of New Methods in Biology, Institute for Biological Instrumentation, Russian Academy of Sciences, Moscow, Russia
| |
Collapse
|
346
|
Critical roles of the lncRNA CASC11 in tumor progression and cancer metastasis: The biomarker and therapeutic target potential. Genes Dis 2020; 9:325-333. [PMID: 35224149 PMCID: PMC8843879 DOI: 10.1016/j.gendis.2020.11.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/05/2020] [Accepted: 11/24/2020] [Indexed: 12/11/2022] Open
Abstract
The frequency of human suffering from cancer is increasing annually across the globe. This has fueled numerous investigations aimed at the prevention and cure of various cancers. Long non-coding RNA (lncRNA) are known to play a crucial role in cancer. For instance, cancer susceptibility candidate 11 (CASC11), as one of the long non-coding RNAs, has been reported to be overexpressed in various tumors. This review elucidates the mechanism by which lncRNA CASC11 regulates tumors' biological processes and affirms its value as a therapeutic target for tumors. Through systematic analysis and review of relevant articles in PubMed, we revealed the pathophysiological mechanism of CASC11 on the tumor by regulating the biological processes of tumor such as proliferation, autophagy, apoptosis, thereby promoting tumor metastasis. We also revealed the regulatory pathways of CASC11 in different tumors, for instance by acting on a variety of microRNAs, oncogenic proteins, carcinogens, and transcription factors. Consequently, CASC11 regulates cancer proliferation, apoptosis, and invasion by altering the WNT/β-catenin signaling pathway and epithelial–mesenchymal transition (EMT). Furthermore, CASC11 expression has a high pertinence with clinical prognosis, suggesting that it is a potential marker for malignant tumors or a clinical adjuvant therapy in the future.
Collapse
|
347
|
Li L, Zhang X, Liu N, Chen X, Peng C. LINC00473: A novel oncogenic long noncoding RNA in human cancers. J Cell Physiol 2020; 236:4174-4183. [PMID: 33222224 DOI: 10.1002/jcp.30176] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 12/15/2022]
Abstract
Long noncoding RNAs (lncRNAs) have been found to play essential roles in the occurrence and development of multiple human cancers. Accumulating evidence has shown that LINC00473, an oncogenic lncRNA, is upregulated in various human malignancies and related to poor clinical outcomes. Besides, LINC00473 overexpression can promote cell proliferation, migration, and invasion through multiple potential mechanisms, indicating that it may serve as a novel prognostic biomarker and therapeutic target for human cancers. Here, we reviewed the biological functions, molecular mechanisms, and clinical implications of LINC00473 in human cancers.
Collapse
Affiliation(s)
- Lingfeng Li
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Xiangya Clinical Research Center for Cancer ImmunoTherapy, Central South University, Changsha, Hunan, China
| | - Xu Zhang
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Xiangya Clinical Research Center for Cancer ImmunoTherapy, Central South University, Changsha, Hunan, China
| | - Nian Liu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Xiangya Clinical Research Center for Cancer ImmunoTherapy, Central South University, Changsha, Hunan, China
| | - Xiang Chen
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Xiangya Clinical Research Center for Cancer ImmunoTherapy, Central South University, Changsha, Hunan, China
| | - Cong Peng
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Xiangya Clinical Research Center for Cancer ImmunoTherapy, Central South University, Changsha, Hunan, China
| |
Collapse
|
348
|
Analysis of Long Noncoding RNA ZNF667-AS1 as a Potential Biomarker for Diagnosis and Prognosis of Glioma Patients. DISEASE MARKERS 2020; 2020:8895968. [PMID: 33282010 PMCID: PMC7685845 DOI: 10.1155/2020/8895968] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/15/2020] [Accepted: 10/19/2020] [Indexed: 12/12/2022]
Abstract
Objective Long noncoding RNAs (lncRNAs) have been strongly associated with various types of cancer. The present study aimed at exploring the diagnostic and prognostic value of lncRNA Zinc finger protein 667-antisense RNA 1 (ZNF667-AS1) in glioma patients. Patients and Methods. The expressions of ZNF667-AS1 were detected in 155 glioma tissues and matched normal brain tissue samples by qRT-PCR. The receiver operating characteristic (ROC) curve was performed to estimate the diagnostic value of ZNF667-AS1. The association between the ZNF667-AS1 expression and clinicopathological characteristics was analyzed by the chi-square test. The Kaplan-Meier method was performed to determine the influence of the ZNF667-AS1 expression on the overall survival and disease-free survival of glioma patients. The Cox regression analysis was used to evaluate the effect of independent prognostic factors on survival outcome. Cell proliferation was measured by the respective cell counting Kit-8 (CCK-8) assays. Results We observed that ZNF667-AS1 was significantly upregulated in glioma tissues compared to normal tissue samples (p < 0.01). Higher levels of ZNF667-AS1 were positively associated with the WHO grade (p = 0.018) and KPS score (p = 0.008). ROC assays revealed that the high ZNF667-AS1 expression had an AUC value of 0.8541 (95% CI: 0.8148 to 0.8934) for glioma. Survival data revealed that glioma patients in the high ZNF667-AS1 expression group had significantly shorter 5-year overall survival (p = 0.0026) and disease-free survival (p = 0.0005) time than those in the low ZNF667-AS1 expression group. Moreover, multivariate analyses confirmed that the ZNF667-AS1 expression was an independent predictor of the overall survival and disease-free survival for glioma patients. Functionally, we found that knockdown of ZNF667-AS1 suppressed the proliferation of glioma cells. Conclusions Our results suggest that ZNF667-AS1 could be used as a potential diagnostic and prognostic biomarker in glioma.
Collapse
|
349
|
Wang X, Wu Z, Qin W, Sun T, Lu S, Li Y, Wang Y, Hu X, Xu D, Wu Y, Chen Q, Yao W, Liu M, Wei M, Wu H. Long non-coding RNA ZFAS1 promotes colorectal cancer tumorigenesis and development through DDX21-POLR1B regulatory axis. Aging (Albany NY) 2020; 12:22656-22687. [PMID: 33202381 PMCID: PMC7746388 DOI: 10.18632/aging.103875] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/25/2020] [Indexed: 12/19/2022]
Abstract
Increasing evidence supports long non-coding RNA-ZFAS1 as master protein regulators involved in a variety of human cancers. However, the molecular mechanism is not fully understood in colorectal cancer (CRC) and remains to be elucidated. Here, we uncovered a previously unreported mechanism linking RNA helicase DDX21 regulated by lncRNA ZFAS1 in control of POLR1B expression in CRC initiation and progression. Specifically, ZFAS1 exerted its oncogenic functions and was significantly up-regulated accompanied by elevated DDX21, POLR1B expression in CRC cells and tissues, which further closely associated with poor clinical outcomes. Notably, ZFAS1 knockdown dramatically suppressed CRC cell proliferation, invasion, migration, and increased cell apoptosis, which were contrary to the effect caused by ZFAS1 up-regulation. We further revealed that the inhibitory effect caused by ZFAS1 knockdown could be reversed by DDX21 overexpression in vitro and in vivo. Mechanistically, our research found that ZFAS1 could directly recruit DDX21 protein by harboring the specific motif (AAGA or CAGA). Finally, POLR1B was identified as the downstream target of DDX21 regulated by ZFAS1, which was also up-regulated in CRC cells and tissues and closely related to poor prognosis. The unrecognized ZFAS1/DDX21/POLR1B signaling regulation axis may provide new biomarkers and targets for CRC treatment and prognostic evaluation.
Collapse
Affiliation(s)
- Xiufang Wang
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Zhikun Wu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Wenyan Qin
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Tong Sun
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Senxu Lu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Yalun Li
- Department of Anorectal Surgery, First Hospital of China Medical University, Shenyang 110001, P. R. China
| | - Yuanhe Wang
- Department of Medical Oncology, Cancer Hospital of China Medical University, Department of Medical Oncology, Liaoning Cancer Hospital and Institute, Shenyang 110042, P. R. China
| | - Xiaoyun Hu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Dongping Xu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Yutong Wu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Qiuchen Chen
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Weifan Yao
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Mingyan Liu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Minjie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| | - Huizhe Wu
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, P. R. China.,Liaoning Key Laboratory of Molecular Targeted Anti-Tumor Drug Development and Evaluation, Liaoning Cancer Immune Peptide Drug Engineering Technology Research Center, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang 110122, P. R. China
| |
Collapse
|
350
|
Li J, Liao T, Liu H, Yuan H, Ouyang T, Wang J, Chai S, Li J, Chen J, Li X, Zhao H, Xiong N. Hypoxic Glioma Stem Cell-Derived Exosomes Containing Linc01060 Promote Progression of Glioma by Regulating the MZF1/c-Myc/HIF1α Axis. Cancer Res 2020; 81:114-128. [PMID: 33158815 DOI: 10.1158/0008-5472.can-20-2270] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/02/2020] [Accepted: 10/28/2020] [Indexed: 11/16/2022]
Abstract
Glioma stem cells (GSC) are a subpopulation of tumor cells with special abilities to proliferate and differentiate in gliomas. They are one of the main causes of tumor recurrence, especially under hypoxic conditions. Although long noncoding RNAs (lncRNA) are known to be involved in numerous biological processes and are implied in the occurrence of certain diseases, their role in tumor development and progression remains poorly understood. Here we explored the mechanisms by which lncRNA derived from hypoxic GSCs (H-GSC) cause glioma progression. Isolation and identification of the Linc01060 gene, the exosomes containing them, and the proteins from tumor cells regulating the gene allowed for studying the effects of Linc01060 on proliferation and glycometabolism. H-GSC exerted their effects by transferring exosomes to glioma cells, resulting in a significant increase in Linc01060 levels. Mechanistically, Linc01060 directly interacted with the transcription factor myeloid zinc finger 1 (MZF1) and enhanced its stability. Linc01060 facilitated nuclear translocation of MZF1 and promoted MZF1-mediated c-Myc transcriptional activities. In addition, c-Myc enhanced the accumulation of the hypoxia-inducible factor-1 alpha (HIF1α) at the posttranscriptional level. HIF1α bound the hormone response elements of the Linc01060 promoter, upregulating the transcription of Linc01060 gene. Clinically, Linc01060 was upregulated in glioma and was significantly correlated with tumor grade and poor clinical prognosis. Overall, these data show that secretion of Linc01060-containing exosomes from H-GSCs activates prooncogenic signaling pathways in glioma cells to promote disease progression. SIGNIFICANCE: These findings suggest that inhibition of Linc01060-containing exosomes or targeting the Linc01060/MZF1/c-Myc/HIF1α axis may be an effective therapeutic strategy in glioma.
Collapse
Affiliation(s)
- Junjun Li
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Tingting Liao
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Hongya Liu
- Wuhan Cell Learning Technology Co. Ltd., Wuhan, Hubei, P.R. China
| | - Hongliang Yuan
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Taohui Ouyang
- Department of Neurosurgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China
| | - Jiajing Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Songshan Chai
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Jinsong Li
- Department of Thoracic surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jingchao Chen
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Xiang Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Hongyang Zhao
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China
| | - Nanxiang Xiong
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China.
| |
Collapse
|