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Ying Y, Liu D, Zhao Y, Zhong Y, Xu X, Luo J, Zhang Z. LINC01116 Promotes Migration and Invasion of Oral Squamous Cell Carcinoma by Acting as a Competed Endogenous RNA in Regulation of MMP1 Expression. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:2857022. [PMID: 35756415 PMCID: PMC9232319 DOI: 10.1155/2022/2857022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/28/2022] [Indexed: 02/06/2023]
Abstract
Oral squamous cell carcinoma (OSCC) has increasingly become a worldwide health concern, and its survival rate has not been much improved partially due to a deficiency of precise molecular markers. Dysregulation of LINC01116, a long noncoding RNA sequence, has been observed in several types of cancer. However, the role played by LINC01116 in OSCC has not yet been fully elaborated. This study explored how LINC01116 was involved in the regulation of OSCC progression by analyzing expressions of LINC01116 in OSCC patients. The findings demonstrated upregulation of LINC01116 in OSCC tissues as opposed to regular oral mucosa, and overexpression of LINC01116 was correlated with advanced tumor status. LINC01116 knockdown using shRNA markedly reduced the OSCC cell invasion and migration in vitro. Moreover, the expression of LINC01116 was negatively correlated with that of microRNA-9-5p (miR-9). Luciferase reporter and loss-of-function assays demonstrated that LINC01116 functioned as a competing endogenous RNA (ceRNA) that could effectively sponge miR-9, thus regulating the derepression of matrix metalloproteinase 1 (MMP1). Furthermore, we confirmed that LINC01116 knockdown did not affect the expression of MMP1 messenger RNA (mRNA). Collectively, it is demonstrated in this study that overexpression of LINC01116 can promote the OSCC progression. The LINC01116-miR-9-MMP1 axis provides a novel insight into the OSCC pathogenesis and offers potential therapeutic targets against OSCC.
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Affiliation(s)
- Yukang Ying
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000 Zhejiang Province, China
| | - Dong Liu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230000 Anhui Province, China
| | - Yue Zhao
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000 Zhejiang Province, China
| | - Yuan Zhong
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000 Zhejiang Province, China
| | - Xuhui Xu
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000 Zhejiang Province, China
| | - Jun Luo
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000 Zhejiang Province, China
| | - Zhenxing Zhang
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000 Zhejiang Province, China
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LncRNA LINC01116 Regulates the Proliferation, Migration, and Invasion of Cervical Cancer Cells by Targeting miR-744-5p. Cell Microbiol 2022. [DOI: 10.1155/2022/2615523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Objective. To investigate the effects and potential molecular mechanisms of LncRNA LINC01116 on proliferation, migration, and invasion of cervical cancer cells. Method(s). The content of miR-744-5p and LINC01116 in cervical cancer cells HeLa, SiHa, and C33a was detected by RT-PCR, the proliferative activity and clone number of SiHa cells were determined by MTT and clone formation assay, the number of invaded and migrated cells was determined by Transwell assay, the expressions of Cyclin D1 and MMP-2 in cells were detected by Western blot, and the activity of luciferase detected by dual-luciferase reporting system verified the regulatory relationship between LINC01116 and miR-744-5p. Result(s). Compared with human normal cervical epithelial cells Ect1/E6E7, the content of LINC01116 in cervical cancer cells HeLa, SiHa, and C33a was increased significantly [(
) vs. (
)/(
)/(
)] (
), the content of miR-744-5p was decreased significantly [(
) vs. (
)/(
)/(
)] (
). Silencing LINC01116 could inhibit the protein expression of Cyclin D1 [(
) vs. (
)] and MMP-2 [(
) vs. (
)] in SiHa cells, and inhibition of cell proliferation [(
)% vs. (
)%], clone formation ability [(
) vs. (
)], migration [(
) vs. (
)], and invasion [(
) vs. (
)]. LINC01116 targeted and negatively regulates the expression of miR-744-5p. Overexpression of miR-744-5p could inhibit the proliferation of cervical cancer SiHa cells [(
)% vs. (
)%], clone formation ability [(
) vs. (
)], migration [(
) vs. (
)], and invasion [(
) vs. (
)]. Inhibition of miR-744-5p reversed the effects of silencing LINC01116 on SiHa cell proliferation [(
)% vs. (
)%], clone formation ability [(
) vs. (
)], migration [(
) vs. (
)], and invasion [(69.12 ± 5.56) vs (94.31 ± 7.44)]. Conclusion(s). LncRNA LINC01116 inhibits proliferation, migration, and invasion of SiHa cells by targeting miR-744-5p, and LINC01116 is a potential molecular target for cervical cancer.
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Peng T, Chen DL, Chen SL. LINC01088 promotes the growth and invasion of glioma cells through regulating small nuclear ribonucleoprotein polypeptide A transcription. Bioengineered 2022; 13:9172-9183. [PMID: 35392763 PMCID: PMC9162022 DOI: 10.1080/21655979.2022.2051786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Altered long non-coding RNAs (LncRNAs) exert pivotal parts in pathogenic processes in glioma. Here, we uncovered a differentially expressed long intergenic non-coding RNA 1088 (LINC01088) in glioma and elucidated the molecular mechanism by which LINC01088 affected the malignant phenotypes of glioma cells. Functionally, LINC01088 silencing degraded cell proliferation, invasion in glioma, while LINC01088 overexpression elicited opposite results. Mechanistically, we verified LINC01088 physically interacted with small nuclear ribonucleoprotein polypeptide A (SNRPA) and regulated the expression of SNRPA at the transcription level. Phenotypic analysis ascertained that LINC01088 substantively aggravated glioma cell progression in an SNRPA-dependent manner, and SNRPA played a pivotal part in the tumor-promoting properties of LINC01088. Our findings revealed a novel mechanism by which LINC01088 exerted pro-oncogenic functions through binding with SNRPA and transcriptionally regulating SNRPA mRNA in glioma.
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Affiliation(s)
- Tao Peng
- Department of Neurosurgery, The First People's Hospital of Qinzhou/The Tenth Affiliated Hospital of Guangxi Medical University, Qinzhou, Guangxi, China
| | - Dong-Liang Chen
- Department of Neurosurgery, The First People's Hospital of Qinzhou/The Tenth Affiliated Hospital of Guangxi Medical University, Qinzhou, Guangxi, China
| | - Shi-Lan Chen
- Department of Neurosurgery, The First People's Hospital of Qinzhou/The Tenth Affiliated Hospital of Guangxi Medical University, Qinzhou, Guangxi, China
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Wang Y, Yan Q, Mo Y, Liu Y, Wang Y, Zhang S, Guo C, Wang F, Li G, Zeng Z, Xiong W. Splicing factor derived circular RNA circCAMSAP1 accelerates nasopharyngeal carcinoma tumorigenesis via a SERPINH1/c-Myc positive feedback loop. Mol Cancer 2022; 21:62. [PMID: 35227262 PMCID: PMC8883650 DOI: 10.1186/s12943-022-01502-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/06/2022] [Indexed: 01/04/2023] Open
Abstract
Background Circular RNAs play an important role in tumor genesis and progression, but they have not been sufficiently studied in patients with nasopharyngeal carcinoma (NPC). Methods The circular RNA, circCAMSAP1, was screened in NPC cells by RNA sequencing analysis. The expression of circCAMSAP1 in NPC tissues was examined by real-time quantitative polymerase chain reaction (RT-qPCR) and in situ hybridization. Wound-healing, transwell, MTT and flow cytometry assays, and nude mouse tumor models were used to explore the effect of circCAMSAP1 on proliferation and metastasis of NPC in vitro or in vivo. The downstream proteins regulated by circCAMSAP1 were screened using mass spectrometry. The interaction between circCAMSAP1 and the SERPINH1 mRNA was identified using the circular RNA immunoprecipitation method and the luciferase reporter assay. The interaction between SERPINH1 and transcription factor c-Myc was verified through Co-immunoprecipitation (Co-IP) and immunofluorescence. The effect of c-Myc on the generation of circCAMSAP1 was examined through RT-qPCR and chromatin immunoprecipitation. Finally, the splicing factors that promote the production of circCAMSAP1 were explored by RT-qPCR and RNA immunoprecipitation (RIP). Results We found that circCAMSAP1 was highly expressed in NPC tissues and promoted NPC proliferation and metastasis. Additionally, circCAMSAP1 promoted SERPINH1 expression through improved SERPINH1 mRNA stability by binding to the 3′-untranslated region (3’UTR) of SERPINH1. Highly expressed SERPINH1 reduced the ubiquitination-degradation rate of c-Myc, causing increased tumorigenesis. Meanwhile, c-Myc, cooperating with splicing factor 10 (SRSF10), could also promote CAMSAP1 pre-mRNA transcription and back-splicing, forming a positive feedback of circCAMSAP1 production, resulting in the proliferation and metastasis of NPC. Conclusions Our findings revealed that circCAMSAP1 promotes NPC proliferation and metastasis by binding to the 3’UTR of SERPINH1, suggesting that the positive feedback of circCAMSAP1-SERPINH1-c-Myc may serve as a prognostic biomarker or therapeutic target in patients with NPC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01502-2.
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Yin Z, Zhou M, Liao T, Xu J, Fan J, Deng J, Jin Y. Immune-Related lncRNA Pairs as Prognostic Signature and Immune-Landscape Predictor in Lung Adenocarcinoma. Front Oncol 2022; 11:673567. [PMID: 35083132 PMCID: PMC8784752 DOI: 10.3389/fonc.2021.673567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 12/14/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Suppressive tumor microenvironment is closely related to the progression and poor prognosis of lung adenocarcinoma (LUAD). Novel individual and universal immune-related biomarkers to predict the prognosis and immune landscape of LUAD patients are urgently needed. Two-gene pairing patterns could integrate and utilize various gene expression data. METHODS The RNA-seq and relevant clinicopathological data of the LUAD project from the TCGA and well-known immune-related genes list from the ImmPort database were obtained. Co-expression analysis followed by an analysis of variance was performed to identify differentially expressed immune-related lncRNA (irlncRNA) (DEirlncRNA) between tumor and normal tissues. Two arbitrary DEirlncRNAs (DEirlncRNAs pair) in a tumor sample underwent pairwise comparison to generate a score (0 or 1). Next, Univariate analysis, Lasso regression and Multivariate analysis were used to screen survival-related DEirlncRNAs pairs and construct a prognostic model. The Acak information standard (AIC) values of the receiver operating characteristic (ROC) curve for 3 years are calculated to determine the cut-off point for high- or low-risk score. Finally, we evaluated the relationship between the risk score and overall survival, clinicopathological features, immune landscape, and chemotherapy efficacy. RESULTS Data of 54 normal and 497 tumor samples of LUAD were enrolled. After a strict screening process, 15 survival-independent-related DEirlncRNA pairs were integrated to construct a prognostic model. The AUC value of the 3-year ROC curve was 0.828. Kaplan-Meier analysis showed that patients with low risk lived longer than patients with high risk (p <0.001). Univariate and Multivariate Cox analysis suggested that the risk score was an independent factor of survival. The risk score was negatively associated with most tumor-infiltrating immune cells, immune score, and microenvironment scores. The low-risk group was correlated with increased expression of ICOS. The high-risk group had a connection with lower half inhibitory centration (IC50) of most chemotherapy drugs (e.g., etoposide, paclitaxel, vinorelbine, gemcitabine, and docetaxel) and targeted medicine-erlotinib, but with higher IC50 of methotrexate. CONCLUSION The established irlncRNA pairs-based model is a promising prognostic signature for LUAD patients. Furthermore, the prognostic signature has great potential in the evaluation of tumor immune landscape and guiding individualized treatment regimens.
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Affiliation(s)
| | | | | | | | | | | | - Yang Jin
- 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, China
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Li Q, Yao L, Lin Z, Li F, Xie D, Li C, Zhan W, Lin W, Huang L, Wu S, Zhou H. Identification of Prognostic Model Based on Immune-Related LncRNAs in Stage I-III Non-Small Cell Lung Cancer. Front Oncol 2021; 11:706616. [PMID: 34745939 PMCID: PMC8564147 DOI: 10.3389/fonc.2021.706616] [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: 05/07/2021] [Accepted: 09/24/2021] [Indexed: 12/13/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) participate in the regulation of immune response and carcinogenesis, shaping tumor immune microenvironment, which could be utilized in the construction of prognostic signatures for non-small cell lung cancer (NSCLC) as supplements. Methods Data of patients with stage I-III NSCLC was downloaded from online databases. The least absolute shrinkage and selection operator was used to construct a lncRNA-based prognostic model. Differences in tumor immune microenvironments and pathways were explored for high-risk and low-risk groups, stratified by the model. We explored the potential association between the model and immunotherapy by the tumor immune dysfunction and exclusion algorithm. Results Our study extracted 15 immune-related lncRNAs to construct a prognostic model. Survival analysis suggested better survival probability in low-risk group in training and validation cohorts. The combination of tumor, node, and metastasis staging systems with immune-related lncRNA signatures presented higher prognostic efficacy than tumor, node, and metastasis staging systems. Single sample gene set enrichment analysis showed higher infiltration abundance in the low-risk group, including B cells (p<0.001), activated CD8+ T cells (p<0.01), CD4+ T cells (p<0.001), activated dendritic cells (p<0.01), and CD56+ Natural killer cells (p<0.01). Low-risk patients had significantly higher immune scores and estimated scores from the ESTIMATE algorithm. The predicted proportion of responders to immunotherapy was higher in the low-risk group. Critical pathways in the model were enriched in immune response and cytoskeleton. Conclusions Our immune-related lncRNA model could describe the immune contexture of tumor microenvironments and facilitate clinical therapeutic strategies by improving the prognostic efficacy of traditional tumor staging systems.
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Affiliation(s)
- Qiaxuan Li
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,College of Medicine, Shantou University, Shantou, China
| | - Lintong Yao
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,College of Medicine, Shantou University, Shantou, China
| | - Zenan Lin
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fasheng Li
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Daipeng Xie
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China
| | - Congsen Li
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,College of Medicine, Shantou University, Shantou, China
| | - Weijie Zhan
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Weihuan Lin
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Luyu Huang
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,College of Medicine, Shantou University, Shantou, China
| | - Shaowei Wu
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,College of Medicine, Shantou University, Shantou, China
| | - Haiyu Zhou
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital & Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Southern Medical University, Guangzhou, China.,College of Medicine, Shantou University, Shantou, China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Thoracic Surgery, Jiangxi Cancer Hospital, Nanchang, China
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Xu Y, Yu X, Zhang M, Zheng Q, Sun Z, He Y, Guo W. Promising Advances in LINC01116 Related to Cancer. Front Cell Dev Biol 2021; 9:736927. [PMID: 34722518 PMCID: PMC8553226 DOI: 10.3389/fcell.2021.736927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/24/2021] [Indexed: 01/11/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are RNAs with a length of no less than 200 nucleotides that are not translated into proteins. Accumulating evidence indicates that lncRNAs are pivotal regulators of biological processes in several diseases, particularly in several malignant tumors. Long intergenic non-protein coding RNA 1116 (LINC01116) is a lncRNA, whose aberrant expression is correlated with a variety of cancers, including lung cancer, gastric cancer, colorectal cancer, glioma, and osteosarcoma. LINC01116 plays a crucial role in facilitating cell proliferation, invasion, migration, and apoptosis. In addition, numerous studies have recently suggested that LINC01116 has emerged as a novel biomarker for prognosis and therapy in malignant tumors. Consequently, we summarize the clinical significance of LINC01116 associated with biological processes in various tumors and provide a hopeful orientation to guide clinical treatment of various cancers in future studies.
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Affiliation(s)
- Yating Xu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Open and Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China.,Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Xiao Yu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Open and Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China.,Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Menggang Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Open and Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China.,Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Qingyuan Zheng
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Open and Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China.,Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Zongzong Sun
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuting He
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Open and Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China.,Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
| | - Wenzhi Guo
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Open and Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation at Henan Universities, Zhengzhou, China.,Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, China
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Chatterjee A, Khadirnaikar S, Shukla S. Development and validation of stemness associated LncRNA based prognostic model for lung adenocarcinoma patients. Cancer Biomark 2021; 33:131-142. [PMID: 34487018 DOI: 10.3233/cbm-200687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND An increasing number of studies are indicating that the stemness phenotype is a critical determinant of the Lung adenocarcinoma (LUAD) patient's response. Thus, it is crucial to identify novel biomarkers for stemness determination. OBJECTIVE Here, we aim to develop a robust LncRNAs based prognostic signature with a stemness association for the LUAD patients. METHODS RNA-seq and clinical data were downloaded from the existing database. The data were analysed using Cox regression, KM-plot, GSEA, and T-test. RESULTS Initially, we used the TCGA dataset to characterize the stemness phenotype in LUAD. The commonly expressed LncRNAs in TCGA and MCTP cohort were then used as input for the Cox-regression analysis. The top three LncRNAs were selected to build a prognostic model, which was the best prognosticator in multivariate analysis with stage and previously published prognosticators. The characterization of poor surviving patients using various analysis showed high stemness properties and low expression of differentiation markers. Furthermore, we validated the prognostic score in an independent MCTP cohort of patients. In the MCTP cohort, prognostic score significantly predicted survival independent of stage and previous prognosticators. CONCLUSION Taken together, in this study, we have developed and validated a new prognostic score associated with the stemness phenotype.
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Shang B, Li Z, Li M, Jiang S, Feng Z, Cao Z, Wang H. Silencing LINC01116 suppresses the development of lung adenocarcinoma via the AKT signaling pathway. Thorac Cancer 2021; 12:2093-2103. [PMID: 34061456 PMCID: PMC8287011 DOI: 10.1111/1759-7714.14042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 12/14/2022] Open
Abstract
Background A growing body of evidence has proven that long noncoding ribonucleic acids (lncRNAs) are important epigenetic regulators that play crucial parts in the pathogenesis of human cancers. Previous studies have shown that long intergenic nonprotein coding RNA 01116 (LINC01116) is a carcinogen in several carcinomas; however, its function in lung adenocarcinoma (LUAD) has not been clarified. Here, we aimed to investigate the role of LINC01116 in LUAD. Methods The relative expression levels of LINC01116 in LUAD cell lines and tissues were detected by quantitative reverse transcription polymerase chain reaction. A Kaplan–Meier survival analysis was performed using patient information from the Gene Expression Profiling Interactive Analysis (GEPIA) database. LUAD proliferation, invasion, migration, and apoptosis were measured by performing cell counting kit‐8, colony formation, transwell, wound healing, and flow cytometric assays. A xenograft animal experiment was performed to investigate the effect of LINC01116 in vivo. Protein kinase B (AKT) signaling pathway‐related protein expressions were tested by Western blot assay. Results LINC01116 expression was upregulated in LUAD cells and tissues. The loss‐of‐function experiments on LUAD cells revealed that silencing LINC01116 expression could decrease cell viability both in vitro and in vivo. Furthermore, silencing LINC01116 inhibited LUAD cell invasion and migration and induced cell apoptosis. Mechanically, silencing LINC01116 significantly decreased p‐AKT protein levels, and an AKT pathway stimulator could rescue the suppressive effects of small interfering LINC011116‐specific RNAs on LUAD development. Conclusions Our study demonstrated that silencing LINC01116 suppresses the development of LUAD via the AKT signaling pathway.
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Affiliation(s)
- Bin Shang
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhenxiang Li
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Meng Li
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Shujuan Jiang
- Department of Respiratory and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhen Feng
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhixin Cao
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Hui Wang
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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10
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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.
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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
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11
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Huang W, Song W, Jiang Y, Chen L, Lu H. c-Myc-induced circ-NOTCH1 promotes aggressive phenotypes of nasopharyngeal carcinoma cells by regulating the miR-34c-5p/c-Myc axis. Cell Biol Int 2021; 45:1436-1447. [PMID: 33675278 DOI: 10.1002/cbin.11582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 02/06/2021] [Accepted: 02/27/2021] [Indexed: 01/17/2023]
Abstract
Nasopharyngeal carcinoma (NPC) is the subclass of head and neck cancer with the highest incidence among otolaryngology malignancies. A growing amount of evidence has proven that circular RNAs (circRNAs) play key roles in the progression of multiple cancers. It has been reported that circ-NOTCH1 is a novel circRNA and functions as an oncogene in gastric cancer, while the regulatory mechanism of circ-NOTCH1 in NPC remains unknown. In the present research, our findings revealed that circ-NOTCH1 was overexpressed in NPC tissues and cells. Circ-NOTCH1 knockdown suppressed NPC cell proliferation, invasion, and migration. Subsequently, we discovered that c-Myc can activate circ-NOTCH1 by binding to the NOTCH1 promoter. c-Myc functioned as a tumor promoter in NPC cells. Mechanistically, circ-NOTCH1 served as a competitive endogenous RNA to modulate c-Myc expression by sponging miR-34c-5p. Additionally, overexpression of c-Myc reversed the circ-NOTCH1 knockdown-mediated inhibition of NPC cellular progression. Overall, this study suggested that c-Myc-induced circ-NOTCH1 promoted malignant phenotypes of NPC cells by regulating the miR-34c-5p/c-Myc axis.
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Affiliation(s)
- Wei Huang
- Department of Radiation Oncology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.,School of Clinical, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Wei Song
- Department of Radiation Oncology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yunfei Jiang
- Department of Emergency, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Lejun Chen
- School of Clinical, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Hong Lu
- Department of Radiation Oncology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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12
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Mu L, Ding K, Tu R, Yang W. Identification of 4 immune cells and a 5-lncRNA risk signature with prognosis for early-stage lung adenocarcinoma. J Transl Med 2021; 19:127. [PMID: 33771173 PMCID: PMC8004399 DOI: 10.1186/s12967-021-02800-x] [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: 01/10/2021] [Accepted: 03/19/2021] [Indexed: 12/27/2022] Open
Abstract
Background Lung cancer is the most common cancer and cause of cancer‐related mortality worldwide, increasing evidence indicated that there was a significant correlation between tumors and the long non‐coding RNAs (lncRNAs), as well as tumor immune infiltration, but their role in early lung adenocarcinoma (LUAD) are still unclear. Methods Gene expression data and corresponding clinical data of early-stage LUAD patients were downloaded from GEO and TCGA databases. 24 kinds of tumor-infiltrating immune cells were analyzed by quantity analysis and univariate cox regression analysis, we divided patients into two subgroups using consensus clustering, recognized the differentially expressed genes (DEGs) in the subgroups, then, established lncRNA risk signature by least absolute shrinkage and selection operator (LASSO) regression. Results A total of 718 patients were enrolled in this study, including 246 from GSE31210 dataset, 127 from GSE50081 dataset and 345 from TCGA-LUAD. We identified that Th2 cells, TFH, NK CD56dim cells and Mast cells were prognosis-related(p < 0.05), then established a 5-lncRNA risk signature (risk score = 0.374600616* LINC00857 + 0.173825706* LINC01116 + (− 0.021398903)* DRAIC + (− 0.113658256)* LINC01140 + (− 0.008403702)* XIST), and draw a nomogram showed that the signature had a well prediction accuracy and discrimination. Conclusions We identified 4 immune infiltrating cells related to the prognosis of early-stage LUAD, and established a novel 5 immune-related lncRNA signature for predicting patients’ prognosis.
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Affiliation(s)
- Lan Mu
- Department of Thyroid Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China
| | - Ke Ding
- Department of Urology, Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China
| | - Ranran Tu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China
| | - Wei Yang
- Department of Respiratory Medicine, National Key Clinical Specialty, Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China.
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13
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Jiang L, Cheng C, Ji W, Wang H, Du Q, Dong X, Shao J, Yu W. LINC01116 promotes the proliferation and invasion of glioma by regulating the microRNA‑744‑5p‑MDM2‑p53 axis. Mol Med Rep 2021; 23:366. [PMID: 33760190 PMCID: PMC7986001 DOI: 10.3892/mmr.2021.12005] [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: 01/12/2020] [Accepted: 01/15/2021] [Indexed: 12/13/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been implicated in the development and progression of tumors. However, the roles and underlying mechanisms of long intergenic non-protein coding RNA 1116 (LINC01116), a member of the lncRNA family, in glioma progression are largely unclear. The expression of LINC01116 and microRNA (miR)-744-5p in glioma tissues and cells was detected by reverse transcription-quantitative PCR. The influences of LINC01116 or miR-744-5p on cell proliferation and invasion were evaluated by Cell Counting Kit-8, colony formation and Transwell assays, and western blotting was used to detect the expression of p53 pathway proteins. A dual-luciferase reporter system was used to locate common binding sites between miR-744-5p and LINC01116 or the 3′ untranslated region of E3 ubiquitin-protein ligase Mdm2 (MDM2). RNA immunoprecipitation was used to determine the interactions between RNAs and proteins. Moreover, a xenograft mouse model was constructed to investigate the effects of LINC01116 in vivo, followed by a TdT-mediated dUTP nick end labeling assay to determine the degree of apoptosis in nude mouse tumors. LINC01116 was found to be highly expressed in glioma tissues, which was associated with a malignant phenotype. LINC01116 promoted the proliferation and invasiveness of glioma cells, and inhibited the p53 pathway by preserving the expression of MDM2 mRNA via miR-744-5p sponging. Furthermore, a low degree of miR-744-5p expression was observed in glioma tissues, which was negatively associated with the expression of LINC01116. Overexpression of miR-744-5p inhibited the proliferation and invasiveness of glioma cells, which was rescued by LINC01116. Finally, LINC01116 knockdown inhibited tumor growth in nude mice. In conclusion, LINC01116 is aberrantly expressed and promotes the progression of glioma by regulating the miR-744-5p-MDM2-p53 pathway. In future, targeting LINC01116 may therefore be a potential therapeutic approach for patients with glioma.
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Affiliation(s)
- Li Jiang
- Department of Neurosurgery, Hangzhou First People's Hospital of Nanjing Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Chao Cheng
- Department of Neurosurgery, Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Wei Ji
- Department of Neurosurgery, Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Hao Wang
- Department of Neurosurgery, Hangzhou First People's Hospital of Nanjing Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Quan Du
- Department of Neurosurgery, Hangzhou First People's Hospital of Nanjing Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Xiaoqiao Dong
- Department of Neurosurgery, Hangzhou First People's Hospital of Nanjing Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Junfei Shao
- Department of Neurosurgery, Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Wenhua Yu
- Department of Neurosurgery, Hangzhou First People's Hospital of Nanjing Medical University, Hangzhou, Zhejiang 310006, P.R. China
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14
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Meng L, Xing Z, Guo Z, Liu Z. LINC01106 post-transcriptionally regulates ELK3 and HOXD8 to promote bladder cancer progression. Cell Death Dis 2020; 11:1063. [PMID: 33311496 PMCID: PMC7733594 DOI: 10.1038/s41419-020-03236-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022]
Abstract
Bladder cancer (BCa) is a kind of common urogenital malignancy worldwide. Emerging evidence indicated that long noncoding RNAs (lncRNAs) play critical roles in the progression of BCa. In this study, we discovered a novel lncRNA LINC01116 whose expression increased with stages in BCa patients and closely related to the survival rate of BCa patients. However, the molecular mechanism dictating the role of LINC01116 in BCa has not been well elucidated so far. In our study, we detected that the expression of LINC01116 was boosted in BCa cells. Moreover, the results of a series of functional assays showed that LINC01116 knockdown suppressed the proliferation, migration, and invasion of BCa cells. Thereafter, GEPIA indicated the closest correlation of LINC01116 with two protein-coding genes, ELK3 and HOXD8. Interestingly, LINC01116 was mainly a cytoplasmic lncRNA in BCa cells, and it could modulate ELK3 and HOXD8 at post-transcriptional level. Mechanically, LINC01116 increased the expression of ELK3 by adsorbing miR-3612, and also stabilized HOXD8 mRNA by binding with DKC1. Rescue experiments further demonstrated that the restraining influence of LINC01116 knockdown on the progression of BCa, was partly rescued by ELK3 promotion, but absolutely reversed by the co-enhancement of ELK3 and HOXD8. More intriguingly, HOXD8 acted as a transcription factor to activate LINC01116 in BCa. In conclusion, HOXD8-enhanced LINC01116 contributes to the progression of BCa via targeting ELK3 and HOXD8, which might provide new targets for treating patients with BCa.
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Affiliation(s)
- Liwei Meng
- Qilu Hospital of Shandong University, Jinan, 250000, Shandong Province, China
| | - Zhaoquan Xing
- Qilu Hospital of Shandong University, Jinan, 250000, Shandong Province, China
| | - Zhaoxin Guo
- Qilu Hospital of Shandong University, Jinan, 250000, Shandong Province, China
| | - Zhaoxu Liu
- Qilu Hospital of Shandong University, Jinan, 250000, Shandong Province, China.
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15
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Wang J, Gao J, Chen Q, Zou W, Yang F, Wei C, Wang Z. LncRNA LINC01116 Contributes to Cisplatin Resistance in Lung Adenocarcinoma. Onco Targets Ther 2020; 13:9333-9348. [PMID: 33061421 PMCID: PMC7519870 DOI: 10.2147/ott.s244879] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022] Open
Abstract
Background Long non-coding RNAs (lncRNAs) have been found to contribute to cisplatin resistance in several cancers; however, the role of lncRNA LINC01116 in cisplatin resistance remains unknown in non-small-cell lung cancer. This study aimed to examine the contribution of LINC01116 to cisplatin resistance in lung adenocarcinoma (LAD). Materials and Methods Cisplatin-resistant A549/DDP cells were generated by treatment with cisplatin by dose escalation. LINC01116 expression was compared between A549 and A549/DDP cells, and between cisplatin-resistant and non-resistant LAD specimens. The cell viability, colony formation, proliferation, migration and invasion were measured using MTT and Transwell assays, and cell apoptosis and cell cycle were detected using flow cytometry. The expression of E-cadherin and Vimentin was quantified. LAD xenografts were modeled in nude mice to investigate the role of LINC01116 on the resistance of LAD to cisplatin. Results MTT assay measured the IC50 values of 13.49 ± 1.62 and 3.52 ± 1.33 μg/mL for A549/DDP and A549 cells, respectively. LINC01116 was overexpressed in cisplatin-resistant LAD specimens and A549/DDP cells (P < 0.05). Knockdown of LINC01116 inhibited cell viability, proliferation, migration and invasion, promoted apoptosis and enhanced the sensitivity to cisplatin in A549/DDP cells, while LINC01116 overexpression promoted cell viability, proliferation, migration and invasion, inhibited apoptosis and reduced the sensitivity to cisplatin in A549 cells. LINC01116 knockdown resulted in a 2.1-fold increase in E-cadherin expression and a 56% reduction in Vimentin expression in A549/DDP cells, and LINC01116 overexpression resulted in a 45% reduction in E-cadherin expression and a 1.82-fold increase in Vimentin expression in A549 cells. Conclusion Dysregulation of lncRNA LINC01116 expression results in resistance of LAD to cisplatin via the EMT process. Our findings support the oncogenic role of LINC01116 to promote the development of cisplatin resistance in LAD, and LINC01116 may be a novel predictor of poor response to cisplatin.
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Affiliation(s)
- Junbin Wang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China.,Department of Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, People's Republic of China
| | - Jin Gao
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
| | - Qinnan Chen
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
| | - Weiyan Zou
- Department of Histology and Embryology, Bengbu Medical College, Bengbu 233030, People's Republic of China
| | - Fen Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, People's Republic of China
| | - Chenchen Wei
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
| | - Zhaoxia Wang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People's Republic of China
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16
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Zeng L, Lyu X, Yuan J, Wang W, Zhao N, Liu B, Sun R, Meng X, Yang S. Long non-coding RNA LINC01116 is overexpressed in lung adenocarcinoma and promotes tumor proliferation and metastasis. Am J Transl Res 2020; 12:4302-4313. [PMID: 32913506 PMCID: PMC7476163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
Long non-coding RNA LINC01116 is involved in the occurrence and progression of a variety of cancers. However, the specific role of LINC01116 in lung adenocarcinoma (LUAD) remains unclear. In this work, we found that LINC01116 was overexpressed in LUAD tissues and cell lines and that increased expression was significantly associated with worse prognoses in patients with LUAD. Univariate and multivariate Cox regression analyses indicated that LINC01116 was an independent risk factor for the prognosis of patients with LUAD. Downregulation of LINC01116 significantly inhibited cell proliferation and migration, promoted cell apoptosis, and prevented cell progression from G1 to S phase. In addition, downregulation of LINC01116 significantly inhibited the epithelial-mesenchymal transition, leading to an increased expression of the epithelial marker E-cadherin and decreased expression of the mesenchymal markers N-cadherin and vimentin. In summary, our results suggest that LINC01116 may act as an oncogene in LUAD and may be a valuable prognostic biomarker for patients with LUAD.
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Affiliation(s)
- Lizhong Zeng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Xin Lyu
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Jingyan Yuan
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Wei Wang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Nannan Zhao
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Boxuan Liu
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Ruiying Sun
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Xia Meng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
| | - Shuanying Yang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, Shaanxi, China
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Xing H, Sun H, Du W. LINC01116 accelerates nasopharyngeal carcinoma progression based on its enhancement on MYC transcription activity. Cancer Med 2019; 9:269-277. [PMID: 31703161 PMCID: PMC6943083 DOI: 10.1002/cam4.2624] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/24/2019] [Accepted: 10/08/2019] [Indexed: 12/15/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) have been demonstrated to be frequently involved in the development of cancers, whereas only a few of them was investigated in nasopharyngeal carcinoma (NPC). Here, we found that LINC01116 was highly expressed in NPC cell lines, and inhibition of LINC01116 notably restrained cell viability, proliferation, and migration in NPC cells. Besides, we unveiled that LINC01116 was mainly distributed in the cytoplasm of NPC cells. Surprisingly, the cytoplasmic LINC01116 could directly interact with the 5'UTR of MYC mRNA, whereas such interaction had no influence on MYC mRNA expression, but facilitated MYC mRNA translation so as to enhance MYC protein level in NPC cells. Moreover, LINC01116 per se had no impact on the transcription of MYC targets but affected their expression through MYC-dependent manner. Furthermore, MYC overexpression offset the suppression of LINC01116 silence on NPC development. In turn, we discovered that MYC could also serve as the transcriptional activator of LINC01116 in NPC cells. By and large, our findings elucidated a LINC01116/MYC feedback loop in accelerating the tumorigenesis of NPC, revealing a promising target to establish novel biomarkers for NPC patients.
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Affiliation(s)
- Haijie Xing
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Chinese Academy of Sciences, Shenzhen Hospital, Shenzhen, China.,Department of Otorhinolaryngology, Head and Neck Surgery, Affiliated Xinhua Hospital, Hainan Medical College, Haikou, China
| | - Hongxia Sun
- Wuhan Medical Science Research Institute, Wuhan, China
| | - Weiluo Du
- Affiliated Xinhua Hospital, Hainan Medical College, Haikou, China
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