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Jian G, Xie D, Kuang X, Zheng P, Liu H, Dong X. Identification and validation of miR-29b-3p and LIN7A as important diagnostic markers for bone non-union by WGCNA. J Cell Mol Med 2024; 28:e18522. [PMID: 38957040 PMCID: PMC11220363 DOI: 10.1111/jcmm.18522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 05/27/2024] [Accepted: 06/04/2024] [Indexed: 07/04/2024] Open
Abstract
Bone non-union is a common fracture complication that can severely impact patient outcomes, yet its mechanism is not fully understood. This study used differential analysis and weighted co-expression network analysis (WGCNA) to identify susceptibility modules and hub genes associated with fracture healing. Two datasets, GSE125289 and GSE213891, were downloaded from the GEO website, and differentially expressed miRNAs and genes were analysed and used to construct the WGCNA network. Gene ontology (GO) analysis of the differentially expressed genes showed enrichment in cytokine and inflammatory factor secretion, phagocytosis, and trans-Golgi network regulation pathways. Using bioinformatic site prediction and crossover gene search, miR-29b-3p was identified as a regulator of LIN7A expression that may negatively affect fracture healing. Potential miRNA-mRNA interactions in the bone non-union mechanism were explored, and miRNA-29-3p and LIN7A were identified as biomarkers of skeletal non-union. The expression of miRNA-29b-3p and LIN7A was verified in blood samples from patients with fracture non-union using qRT-PCR and ELISA. Overall, this study identified characteristic modules and key genes associated with fracture non-union and provided insight into its molecular mechanisms. Downregulated miRNA-29b-3p was found to downregulate LIN7A protein expression, which may affect the healing process after fracture in patients with bone non-union. These findings may serve as a prognostic biomarker and potential therapeutic target for bone non-union.
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Affiliation(s)
- Guojian Jian
- Department of OrthopedicsChenggong Hospital of Xiamen University (the 73th Group Military Hospital of People's Liberation Army)XiamenFujianChina
| | - Desheng Xie
- Department of OrthopedicsChenggong Hospital of Xiamen University (the 73th Group Military Hospital of People's Liberation Army)XiamenFujianChina
| | - Ximu Kuang
- Department of OrthopedicsChenggong Hospital of Xiamen University (the 73th Group Military Hospital of People's Liberation Army)XiamenFujianChina
| | - Peihuang Zheng
- Department of OrthopedicsChenggong Hospital of Xiamen University (the 73th Group Military Hospital of People's Liberation Army)XiamenFujianChina
| | - Haoyuan Liu
- Department of OrthopedicsChenggong Hospital of Xiamen University (the 73th Group Military Hospital of People's Liberation Army)XiamenFujianChina
| | - Xuehong Dong
- Department of OrthopedicsChenggong Hospital of Xiamen University (the 73th Group Military Hospital of People's Liberation Army)XiamenFujianChina
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2
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Rezaee A, Ahmadpour S, Jafari A, Aghili S, Zadeh SST, Rajabi A, Raisi A, Hamblin MR, Mahjoubin-Tehran M, Derakhshan M. MicroRNAs, long non-coding RNAs, and circular RNAs and gynecological cancers: focus on metastasis. Front Oncol 2023; 13:1215194. [PMID: 37854681 PMCID: PMC10580988 DOI: 10.3389/fonc.2023.1215194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/28/2023] [Indexed: 10/20/2023] Open
Abstract
Gynecologic cancer is a significant cause of death in women worldwide, with cervical cancer, ovarian cancer, and endometrial cancer being among the most well-known types. The initiation and progression of gynecologic cancers involve a variety of biological functions, including angiogenesis and metastasis-given that death mostly occurs from metastatic tumors that have invaded the surrounding tissues. Therefore, understanding the molecular pathways underlying gynecologic cancer metastasis is critical for enhancing patient survival and outcomes. Recent research has revealed the contribution of numerous non-coding RNAs (ncRNAs) to metastasis and invasion of gynecologic cancer by affecting specific cellular pathways. This review focuses on three types of gynecologic cancer (ovarian, endometrial, and cervical) and three kinds of ncRNAs (long non-coding RNAs, microRNAs, and circular RNAs). We summarize the detailed role of non-coding RNAs in the different pathways and molecular interactions involved in the invasion and metastasis of these cancers.
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Affiliation(s)
- Aryan Rezaee
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sara Ahmadpour
- Biotechnology Department, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Ameneh Jafari
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sarehnaz Aghili
- Department of Gynecology and Obstetrics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Ali Rajabi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Arash Raisi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Maryam Mahjoubin-Tehran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Marzieh Derakhshan
- Shahid Beheshti Fertility Clinic, Department of Gynecology and Obsteterics, Isfahan University of Medical Sciences, Isfahan, Iran
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Salamini-Montemurri M, Lamas-Maceiras M, Lorenzo-Catoira L, Vizoso-Vázquez Á, Barreiro-Alonso A, Rodríguez-Belmonte E, Quindós-Varela M, Cerdán ME. Identification of lncRNAs Deregulated in Epithelial Ovarian Cancer Based on a Gene Expression Profiling Meta-Analysis. Int J Mol Sci 2023; 24:10798. [PMID: 37445988 PMCID: PMC10341812 DOI: 10.3390/ijms241310798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/19/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
Epithelial ovarian cancer (EOC) is one of the deadliest gynecological cancers worldwide, mainly because of its initially asymptomatic nature and consequently late diagnosis. Long non-coding RNAs (lncRNA) are non-coding transcripts of more than 200 nucleotides, whose deregulation is involved in pathologies such as EOC, and are therefore envisaged as future biomarkers. We present a meta-analysis of available gene expression profiling (microarray and RNA sequencing) studies from EOC patients to identify lncRNA genes with diagnostic and prognostic value. In this meta-analysis, we include 46 independent cohorts, along with available expression profiling data from EOC cell lines. Differential expression analyses were conducted to identify those lncRNAs that are deregulated in (i) EOC versus healthy ovary tissue, (ii) unfavorable versus more favorable prognosis, (iii) metastatic versus primary tumors, (iv) chemoresistant versus chemosensitive EOC, and (v) correlation to specific histological subtypes of EOC. From the results of this meta-analysis, we established a panel of lncRNAs that are highly correlated with EOC. The panel includes several lncRNAs that are already known and even functionally characterized in EOC, but also lncRNAs that have not been previously correlated with this cancer, and which are discussed in relation to their putative role in EOC and their potential use as clinically relevant tools.
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Affiliation(s)
- Martín Salamini-Montemurri
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Mónica Lamas-Maceiras
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Lidia Lorenzo-Catoira
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Ángel Vizoso-Vázquez
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Aida Barreiro-Alonso
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Esther Rodríguez-Belmonte
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - María Quindós-Varela
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
- Complexo Hospitalario Universitario de A Coruña (CHUAC), Servizo Galego de Saúde (SERGAS), 15006 A Coruña, Spain
| | - M Esperanza Cerdán
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
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Zhang P, Zhang J, Kou W, Gu G, Zhang Y, Shi W, Chu P, Liang D, Sun G, Shang J. Comprehensive analysis of a pyroptosis-related gene signature of clinical and biological values in spinal cord injury. Front Neurol 2023; 14:1141939. [PMID: 37273699 PMCID: PMC10237016 DOI: 10.3389/fneur.2023.1141939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/27/2023] [Indexed: 06/06/2023] Open
Abstract
Background Since some of the clinical examinations are not suitable for patients with severe spinal cord injury (SCI), blood biomarkers have been reported to reflect the severity of SCI. The objective of this study was to screen out the potential biomarkers associated with the diagnosis of SCI by bioinformatics analysis. Methods The microarray expression profiles of SCI were obtained from the Gene Expression Omnibus (GEO) database. Core genes correlated to pyroptosis were obtained by crossing the differential genes, and module genes were obtained by WGCNA analysis and lasso regression. The immune infiltration analysis and GSEA analysis revealed the essential effect of immune cells in the progression of SCI. In addition, the accuracy of the biomarkers in diagnosing SCI was subsequently evaluated and verified using the receiver operating characteristic curve (ROC) and qRT-PCR. Results A total of 423 DEGs were identified, among which 319 genes were upregulated and 104 genes were downregulated. Based on the WGCNA analysis, six potential biomarkers were screened out, including LIN7A, FCGR1A, FGD4, GPR27, BLOC1S1, and GALNT4. The results of ROC curves demonstrated the accurate value of biomarkers related to SCI. The immune infiltration analysis and GSEA analysis revealed the essential effect of immune cells in the progression of SCI, including macrophages, natural killer cells, and neutrophils. The qRT-PCR results verified that FGD4, FCAR1A, LIN7A, BLOC1S1, and GPR27 were significantly upregulated in SCI patients. Conclusion In this study, we identified and verified five immune pyroptosis-related hub genes by WGCNA and biological experiments. It is expected that the five identified potential biomarkers in peripheral white blood cells may provide a novel strategy for early diagnosis.
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Affiliation(s)
- Pingping Zhang
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Jianping Zhang
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Wenjuan Kou
- School of Pharmaceutical Sciences and Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
- Department of Disinfection Monitoring, Yongji Disease Control and Prevention Center, Yongji, Shanxi, China
| | - Guangjin Gu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Yaning Zhang
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Weihan Shi
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Pengcheng Chu
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Dachuan Liang
- Department of Scientific Research Management, Shanxi Medical College Seventh Affiliated Hospital, Linfen People's Hospital, Linfen, Shanxi, China
| | - Guangwei Sun
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
| | - Jun Shang
- Department of Orthopedics, Seventh Affiliated Hospital of Shanxi Medical University, Linfen People's Hospital, Linfen, Shanxi, China
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
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Guan H, Lv P, Han P, Zhou L, Liu J, Wu W, Yan M, Xing Q, Cao W. Long non-coding RNA ESCCAL-1/miR-590/LRP6 signaling pathway participates in the progression of esophageal squamous cell carcinoma. Cancer Med 2023; 12:445-458. [PMID: 35655441 PMCID: PMC9844631 DOI: 10.1002/cam4.4915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/12/2022] [Accepted: 05/24/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) have critical functions within esophageal squamous cell carcinoma (ESCC). However, the function and mechanism underlying ESCC-associated lncRNA-1 (ESCCAL-1) in ESCC tumorigenesis have not been well clarified. METHODS ESCCAL-1, miR-590 and LRP6 were quantified using qRT-PCR. Cell viability, migration and invasion abilities were measured using CCK-8 assay and transwell assays. The protein pression was determined with western blot assay. The xenograft model assays were used to examine the impact of ESCCAL-1 on tumorigenic effect in vivo. Direct relationships among ESCCAL-1, miR-590 and LRP6 were confirmed using dual-luciferase reporter assays. RESULTS The present work discovered the ESCCAL-1 up-regulation within ESCC. Furthermore, ESCCAL-1 was found to interact with miR-590 and consequently restrict its expression. Functionally, knocking down ESCCAL-1 or over-expressing miR-590 hindered ESCC cell growth, invasion, and migration in vitro. Moreover, inhibition of miR-590 could reverse the effect of knockdown of ESCCAL-1 on cells. Importantly, it was confirmed that LRP6 was miR-590's downstream target and LRP6 over-expression also partly abolished the role of miR-590 overexpression in ESCC cells. CONCLUSION We have uncovered a novel regulatory network comprising aberrant interaction of ESCCAL-1/miR-590/LRP6 participated in ESCC progression.
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Affiliation(s)
- Hongya Guan
- Department of translational Medical CenterZhengzhou Central Hospital Affiliated to Zhengzhou UniversityZhengzhouChina
| | - Pengju Lv
- Department of translational Medical CenterZhengzhou Central Hospital Affiliated to Zhengzhou UniversityZhengzhouChina
| | - Pengli Han
- Department of translational Medical CenterZhengzhou Central Hospital Affiliated to Zhengzhou UniversityZhengzhouChina
| | - Lijuan Zhou
- Department of translational Medical CenterZhengzhou Central Hospital Affiliated to Zhengzhou UniversityZhengzhouChina
| | - Jia Liu
- Department of translational Medical CenterZhengzhou Central Hospital Affiliated to Zhengzhou UniversityZhengzhouChina
| | - Wei Wu
- Department of MedicineUniversity of California, San FranciscoSan FranciscoCAUSA
| | - Ming Yan
- Basic Medical CollegeZhengzhou UniversityZhengzhouChina
| | - Qinghe Xing
- Institutes of Biomedical Sciences and Children's HospitalFudan UniversityShanghaiChina
| | - Wei Cao
- Department of translational Medical CenterZhengzhou Central Hospital Affiliated to Zhengzhou UniversityZhengzhouChina
- Henan Diagnosis of Tumor Pathology Postdoctoral WorkstationZhengzhouChina
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Chen H, Wei L, Luo M, Wang X, Zhu C, Huang H, Liu X, Lu H, Zhong Y. LINC00324 suppresses apoptosis and autophagy in nasopharyngeal carcinoma through upregulation of PAD4 and activation of the PI3K/AKT signaling pathway. Cell Biol Toxicol 2022; 38:995-1011. [PMID: 34322788 DOI: 10.1007/s10565-021-09632-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/13/2021] [Indexed: 01/25/2023]
Abstract
BACKGROUND Nasopharyngeal carcinoma (NPC) has high incidence in Southern China and is derived from the mucosal epithelium of the nasopharynx. Accumulating evidence has revealed that peptidyl arginine deiminase 4 (PAD4) exerts carcinogenic effect on certain cancers. We designed this study to probe the specific role that PAD4 plays in NPC and its molecular mechanism. METHODS PAD4 expression in NPC cells was detected by RT-qPCR analysis. MTT, colony formation, flow cytometry, TUNEL staining, and LC3-II punctuation experiments were done to probe into the biological functions of PAD4 on NPC cellular behaviors in vitro. Subsequently, the upstream regulatory mechanism of PAD4 was investigated by luciferase reporter, RNA pull-down, and RIP assays. The impact of PAD4 on NPC tumor growth in mice was assessed by in vivo xenograft tumor assay. RESULTS PAD4 was upregulated in NPC cells. PAD4 knockdown suppressed proliferative ability and promoted apoptosis and autophagy in NPC cells. Additionally, PAD4 expression was negatively regulated by microRNA 3164 (miR-3164). LINC00324 positively upregulated PAD4 expression by interacting with miR-3164 and recruiting HuR protein. The LINC00324/miR-3164/PAD4 axis modulated the PI3K/AKT pathway in NPC cells. Moreover, PAD4 upregulation countervailed the influences of LINC00324 deficiency on NPC cell proliferation, apoptosis, and autophagy and on NPC tumor growth in mice. CONCLUSION LINC00324 promoted NPC malignancy by upregulation of PAD4 to activate the PI3K/AKT pathway.
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Affiliation(s)
- Hao Chen
- Department of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 Taoyuan Road, Nanning, 530021, Guangxi, China
| | - Lining Wei
- Department of Endoscopy, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Min Luo
- Department of Oncology, The Third Affiliated Hospital of Guangxi Medical University, Nanning, 530031, Guangxi, China
| | - Xiaochen Wang
- Department of Oncology, The Third Affiliated Hospital of Guangxi Medical University, Nanning, 530031, Guangxi, China
| | - Chaohua Zhu
- Department of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 Taoyuan Road, Nanning, 530021, Guangxi, China
| | - Huixian Huang
- Department of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 Taoyuan Road, Nanning, 530021, Guangxi, China
| | - Xu Liu
- Department of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 Taoyuan Road, Nanning, 530021, Guangxi, China
| | - Heming Lu
- Department of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region, No. 6 Taoyuan Road, Nanning, 530021, Guangxi, China.
| | - Yahua Zhong
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuchang District, Wuhan, 430000, Hubei, China.
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Ou H, Li J, Lv Q, Feng D. Hsa_circ_0069094 positively regulates the expression of oncogenic ZNF217 by competitively targeting miR-758–3p to promote the development of breast cancer. Reprod Biol 2022; 22:100708. [DOI: 10.1016/j.repbio.2022.100708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 10/08/2022] [Accepted: 10/26/2022] [Indexed: 11/09/2022]
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Liao Y, Liu Q, Xiao C, Zhou J. Machine learning and experimental validation to construct a metastasis-related gene signature and ceRNA network for predicting osteosarcoma prognosis. J Orthop Surg Res 2022; 17:516. [PMID: 36457129 PMCID: PMC9713963 DOI: 10.1186/s13018-022-03386-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/05/2022] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE Osteosarcoma (OS) is more common in adolescents and significantly harmful, and the survival rate is considerably low, especially in patients with metastatic OS. The identification of effective biomarkers and associated regulatory mechanisms, which predict OS occurrence and development as well as improve prognostic accuracy, will help develop more refined protocols for OS treatment. METHODS In this study, genes showing differential expression in metastatic and non-metastatic types of OS were identified, and the ones affecting OS prognosis were screened from among these. Following this, the functions and pathways associated with the genes were explored via enrichment analysis, and an effective predictive signature was constructed using Cox regression based on the machine learning algorithm, least absolute shrinkage and selection operator (LASSO). Next, a correlative competing endogenous RNA (ceRNA) regulatory axis was constructed after verification by bioinformatics analysis and luciferase reporter gene experiments conducted based on the prognostic signature. RESULTS Overall, 251 differentially expressed genes were identified and screened using bioinformatics and double luciferase reporter gene experiments. An effective prognostic signature was constructed based on 15 genes associated with OS metastasis, and upstream non-coding RNAs were identified to construct the "NBR2/miR-129-5p/FKBP11" regulatory axis based on the ceRNA networks, which helped identify candidate biomarkers for the OS clinical diagnosis and treatment, drug research, and prognostic prediction, among other applications. The findings of this study provide a novel strategy for determining the mechanism underlying OS occurrence and development and the appropriate treatment.
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Affiliation(s)
- Yong Liao
- grid.513391.c0000 0004 8339 0314Department of Pharmacy, Maoming People’s Hospital, Maoming, 525000 China
| | - Qingsong Liu
- grid.411304.30000 0001 0376 205XChengdu University of Traditional Chinese Medicine Affiliated Hospital, Chengdu, 610000 Sichuan China
| | - Chunxia Xiao
- grid.263785.d0000 0004 0368 7397The Affiliated Dianbai School of South China Normal University, Maoming, 525000 China
| | - Jihui Zhou
- grid.513391.c0000 0004 8339 0314Department of Traumatic Orthopedics, Maoming People’s Hospital, No. 101 Weimin Road, Maoming, 525000 Guangdong Province China
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Wu Q, Jiang J. LncRNA MAFG-AS1 Promotes Lung Adenocarcinoma Cell Migration and Invasion by Targeting miR-3196 and Regulating SOX12 Expression. Mol Biotechnol 2022; 64:970-983. [PMID: 35275356 DOI: 10.1007/s12033-022-00455-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 01/14/2022] [Indexed: 11/28/2022]
Abstract
Lung adenocarcinoma (LUAD) patients exhibit poor prognosis, primarily due to metastasis. Emerging studies have demonstrated that long noncoding RNAs (lncRNAs) play critical roles in cancer progression and metastasis besides their physiological function. Here, we investigated the potential role of lncRNA MAF BZIP Transcription Factor G Antisense RNA 1 (MAFG-AS1) in LUAD metastasis by analyzing its expression in The Cancer Genome Atlas (TCGA) LUAD database, and its function in LUAD using in vitro and in vivo experiments. We performed bioinformatics analysis, western blotting, dual-luciferase reporter gene assay, RNA immunoprecipitation (RIP), and rescue assays to reveal the molecular mechanisms underlying MAFG-AS1 function. We observed augmented expression of MAFG-AS1 in LUAD tissues compared with normal adjacent tissues, and its association with poor prognosis. Furthermore, MAFG-AS1 overexpression promoted LUAD cell migration, proliferation, invasion, and epithelial mesenchymal transition (EMT). Besides, MAFG-AS1 also targeted miR-3196 directly by acting as an endogenous sponge, thereby rescuing the inhibition of SOX12, a target of miR-3196. Thus, the rescue assays demonstrated that MAFG-AS1 promotes cell migration, invasion, and EMT by modulating the miR-3196/SOX12 pathway. In conclusion, our findings suggest that MAFG-AS1/miR-3196/SOX12 axis regulates LUAD progression and is a potential therapeutic target for LUAD.
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Affiliation(s)
- Qian Wu
- Department of Respiratory, Quzhou People's Hospital Affiliated to Wenzhou Medical University, No.2, zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China
| | - Jianyang Jiang
- Department of Respiratory, Quzhou People's Hospital Affiliated to Wenzhou Medical University, No.2, zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China.
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Kong D, Shen D, Liu Z, Zhang J, Zhang J, Geng C. Circ_0008500 Knockdown Improves Radiosensitivity and Inhibits Tumorigenesis in Breast Cancer Through the miR-758-3p/PFN2 Axis. J Mammary Gland Biol Neoplasia 2022; 27:37-52. [PMID: 35239064 DOI: 10.1007/s10911-022-09514-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 02/07/2022] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is one of the most common malignancies worldwide. Circular RNAs (CircRNAs) were revealed to be implicated in the development of breast cancer. In this research, we aimed to investigate the role and underlying mechanism of circ_0008500 in the development and radiosensitivity of breast cancer. Using real-time quantitative PCR (RT-qPCR) and western blot, we found that hsa_circ_0008500 (circ_0008500) and profilin 2 (PFN2) were increased, while microRNA-758-3p (miR-758-3p) was decreased in breast cancer tissues and cells. Cell viability, the number of colonies, proliferation and apoptosis were detected using CCK-8, colony formation, EdU assays and flow cytometry, respectively. Dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were devoted to test the interaction between miR-758-3p and circ_0008500 or PFN2. The results showed that circ_0008500 knockdown inhibited cell growth, and facilitated cell apoptosis and radiosensitivity in breast cancer cells in vitro. Moreover, circ_0008500 regulated PFN2 expression by sponging miR-758-3p. Functionally, circ_0008500 knockdown regulated cell behaviors and radiosensitivity by targeting miR-758-3p to downregulate PFN2 expression in vitro. Additionally, in vivo tumor formation assay and immunohistochemistry (IHC) assay demonstrated that circ_0008500 knockdown enhanced the radiosensitivity and repressed tumor growth in vivo. In conclusion, circ_0008500 inhibition promoted the radiosensitivity and restrained the development of breast cancer by downregulating PFN2 expression via targeting miR-758-3p.
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Affiliation(s)
- Deyou Kong
- Department of Radiotherapy, the Fourth Hospital of Hebei Medical University, Shijiazhuang, 050035, China
| | - Dongxing Shen
- Department of Radiotherapy, the Fourth Hospital of Hebei Medical University, Shijiazhuang, 050035, China
| | - Zhikun Liu
- Department of Radiotherapy, the Fourth Hospital of Hebei Medical University, Shijiazhuang, 050035, China
| | - Jun Zhang
- Department of Radiotherapy, the Fourth Hospital of Hebei Medical University, Shijiazhuang, 050035, China
| | - Jian Zhang
- Department of Radiotherapy, the Fourth Hospital of Hebei Medical University, Shijiazhuang, 050035, China
| | - Cuizhi Geng
- Breast Center, the Fourth Hospital of Hebei Medical University, Yuhua District, No. 169 Tianshan Street, Shijiazhuang, 050035, China.
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11
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Han X, Mo J, Yang Y, Wang Y, Lu H. Crucial Roles of LncRNAs-Mediated Autophagy in Breast Cancer. Int J Med Sci 2022; 19:1082-1092. [PMID: 35813295 PMCID: PMC9254371 DOI: 10.7150/ijms.72621] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/09/2022] [Indexed: 11/05/2022] Open
Abstract
Breast cancer remains a worldwide public health issue. LncRNA and autophagy respectively or simultaneously, get involved in cellular and molecular processes of many different cancers, including genesis, metastasis, and deterioration of breast cancer and other malignant tumors. In this review, relevant studies have been summarized, and we have found that lncRNA-mediated autophagy in luminal A breast cancer, luminal B breast cancer, HER-2 positive breast cancer, and basal-like breast cancer may play an important role in mediating drug resistance sensitivity. LncRNAs target genes and affect different signaling pathways to a complex network, which attenuates the occurrence and development of primary breast cancer by coordinating autophagy. Abnormal expression of LncRNA may lead to dysregulation of autophagy, resulting in tumor genesis, expansion, and resistance to anti-tumor therapy. Targeting specific lncRNAs for autophagy regulation may conduct as a bio-marker for reliable diagnosis and prognosis treatment of breast cancer or provide a promising therapeutic strategy.
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Affiliation(s)
- Xinwei Han
- Tai Zhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Jiaojiang District, Taizhou, Zhejiang, 318000, China.,Cytotherapy Laboratory, Shenzhen People's Hospital, 1017, Dongmen North Road, Luohu, Shenzhen, 518020, China
| | - Jinggang Mo
- Tai Zhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Jiaojiang District, Taizhou, Zhejiang, 318000, China
| | - Yingmei Yang
- Tai Zhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Jiaojiang District, Taizhou, Zhejiang, 318000, China
| | - Yichao Wang
- Tai Zhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Jiaojiang District, Taizhou, Zhejiang, 318000, China
| | - Hongsheng Lu
- Tai Zhou Central Hospital (Taizhou University Hospital), No.999 Donghai Road, Jiaojiang District, Taizhou, Zhejiang, 318000, China
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12
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Chang J, Zhang Y, Ye X, Guo H, Lu K, Liu Q, Guo Y. Long non-coding RNA (LncRNA) CASC9/microRNA(miR)-590-3p/sine oculis homeobox 1 (SIX1)/NF-κB axis promotes proliferation and migration in breast cancer. Bioengineered 2021; 12:8709-8723. [PMID: 34711117 PMCID: PMC8806761 DOI: 10.1080/21655979.2021.1977555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Long non-coding RNA (lncRNA)–microRNA–mRNA signaling axes have recently been shown to have a key role in the development of breast cancer (BC). In this study, we investigated how the cancer susceptibility candidate 9 (CASC9) gene affects the cell growth, invasion, migration, and apoptosis of BC cells. The levels of microRNA-590-3p (miR-590-3p), CASC9, and the sine oculis homeobox 1 (SIX1) gene were determined through qRT-PCR. We conducted cell counting kit-8 (CCK-8) assays to assess cell proliferation, transwell assays to detect cell migration/invasion, and flow cytometry to evaluate cell apoptosis. StarBase v2.0 was used to predict interactions between miR-590-3p and SIX1 or CASC9, and dual-luciferase reporter assays were used to verify these predictions. CASC9 protein was overexpressed in BC cells and tissues, while CASC9 knockdown inhibited BC cell growth, invasion, and migration and promoted apoptosis. Additionally, we verified that CASC9 competes for binding with miR-590-3p. Moreover, SIX1 was determined to be a target of miR-590–3p, and SIX1 expression was inhibited by miR-590-3p overexpression. CASC9 enhanced BC development by downregulating miR-590-3p and upregulating SIX1 during the activation of the NF-κB pathway. These data suggest that the CASC9/miR-590-3p/SIX1/NF-κB axis is involved in breast cancer progression, providing insight into the function of CASC9 in breast cancer development.
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Affiliation(s)
- Jingzhi Chang
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Yuxia Zhang
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Xin Ye
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Hui Guo
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Kun Lu
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Qing Liu
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Yli Guo
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
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13
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Sun M, Chen Y, Liu X, Cui Y. LncRNACASC9 promotes proliferation, metastasis, and cell cycle inovarian carcinoma cells through cyclinG1/TP53/MMP7 signaling. Bioengineered 2021; 12:8006-8019. [PMID: 34595994 PMCID: PMC8806755 DOI: 10.1080/21655979.2021.1981795] [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] [Indexed: 01/10/2023] Open
Abstract
Ovarian cancer (OC) brings about serious physical and psychological burden for female patients. LncRNA CASC9 has been reported to be intimately linked with the occurrence and development of several tumors. However, the biological role of lncRNA CASC9 in OC still lacks sufficient evidence. The expressions of CASC9 and miR-488-3p in OC cell lines and xenograft mice were detected by qRT-PCR assay. Cell Counting Kit-8 (CCK-8) assay was used to assess cell inhibition rate and cell proliferation in OVCAR-3 and OVCAR-3/DDP cells. Wound healing assay and transwell assay were performed to evaluate the capacity of migration and invasion, respectively. In addition, cell apoptosis was measured by TUNEL assay and cell cycle was assessed by flow cytometric analysis. Moreover, western blotting was carried out to detect the cyclinG1 (CCNG1)/TP53/MMP7 signaling and apoptosis-related proteins. Furthermore, luciferase reporter assay was performed to verify the combination of CASC9 with CCNG1 and miR-488-3p. The results of our study revealed that CASC9 expression was upregulated while miR-488-3p and CCNG1 expression was downregulated in OC cells with significant higher TP53 and MMP7 protein levels compared with normal ovarian surface epithelial cells. Additionally, luciferase reporter assay confirmed CASC9 bond to miR-488-3p/CCNG1. CASC9 silencing inhibited cell proliferation, migration, and invasion whereas promoted cell inhibition rate and apoptosis in vitro and in vivo. However, CASC9 overexpression showed the opposite effects. In summary, LncRNA CASC9 played a regulative role in ovarian carcinoma by cyclinG1/TP53/MMP7 signaling via binding to miR-488-3p in vivo and in vitro.
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Affiliation(s)
- Min Sun
- Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, Xi'an P.R.China
| | - Yanan Chen
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing P.R.China
| | - Xiaobei Liu
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing P.R.China
| | - Yajie Cui
- Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, Xi'an P.R.China
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Qiang F, Li J. CircCSNK1G1 Contributes to the Tumorigenesis of Gastric Cancer by Sponging miR-758 and Regulating ZNF217 Expression. Cancer Manag Res 2021; 13:5027-5038. [PMID: 34234548 PMCID: PMC8253995 DOI: 10.2147/cmar.s305767] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 05/07/2021] [Indexed: 12/29/2022] Open
Abstract
Background Increasing evidence indicates that circular RNAs (circRNAs) act as vital regulators in various cancers. Nevertheless, the effect of circCSNK1G1 on gastric cancer (GC) is still unknown. Methods The mRNA levels of circCSNK1G1, miR-758, and ZNF217 were measured by RT-qPCR. The protein levels of ZNF217 were evaluated by Western blotting. Cell migration, invasion, proliferation, and apoptosis were detected by Transwell, CCK-8, and flow cytometry assays. The association between miR-758 and circCSNK1G1/ZNF217 was confirmed by RIP and luciferase reporter assays. Xenograft assay was employed for in vivo experiment. Results In the current study, it was demonstrated that the expression levels of circCSNK1G1 and ZNF217 were upregulated in GC tissues and cells, while the level of miR-758 was declined. Furthermore, functional assays indicated that circCSNK1G1 depletion suppressed GC progression in vitro and in vivo. In addition, circCSNK1G1 directly interacted with miR-758, and the supplementation of miR-758 suppressed the development of GC, which was abolished following pcDNA3.1-circCSNK1G1 transfection. Then, we explored the downstream mechanism of miR-758 and found that miR-758 could target the 3'UTR of ZNF217 mRNA. The overexpression of miR-758 neutralized the ZNF217-mediated effects on facilitating the progression of GC. Finally, we revealed that circCSNK1G1 could upregulate ZNF217 expression by sponging miR-758 in GC cells. Conclusion Our study revealed that circCSNK1G1 accelerated GC progression via the miR-758/ZNF217 axis, suggesting that circCSNK1G1 might be a potential biomarker for GC diagnosis and treatment.
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Affiliation(s)
- Feng Qiang
- Department of Gastroenterology, the First People's Hospital of Huzhou, Huzhou, 313000, People's Republic of China
| | - Jingjing Li
- Department of Gastroenterology, the First People's Hospital of Huzhou, Huzhou, 313000, People's Republic of China
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15
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Zhu ZJ, Pang Y, Jin G, Zhang HY, Wang WH, Liu JW, Tuo GX, Wu P, Yang Y, Wang ZQ, Wang K. Hypoxia induces chemoresistance of esophageal cancer cells to cisplatin through regulating the lncRNA-EMS/miR-758-3p/WTAP axis. Aging (Albany NY) 2021; 13:17155-17176. [PMID: 34081626 PMCID: PMC8312407 DOI: 10.18632/aging.203062] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 03/14/2021] [Indexed: 04/10/2023]
Abstract
Hypoxia contributes significantly to the development of chemoresistance of many malignancies including esophageal cancer (EC). Accumulating studies have indicated that long non-coding RNAs play important roles in chemotherapy resistance. Here, we identified a novel lncRNA-EMS/miR-758-3p/WTAP axis that was involved in hypoxia-mediated chemoresistance to cisplatin in human EC. Hypoxia induced the expressions of lncRNA EMS and WTAP, and reduced the expression of miR-758-3p in EC cell line ECA-109. In addition, the expressions of EMS and WTAP were required for the hypoxia-induced drug resistance to cisplatin in EC cells, while overexpression of miR-758-3p reversed such chemoresistance. The targeting relationships between EMS and miR-758-3p, as well as miR-758-3p and WTAP, were verified by luciferase-based reporter assays and multiple quantitative assays after gene overexpression/knockdown. Moreover, we found significant correlations between tumor expressions of these molecules. Notably, higher levels of EMS/WTAP, or lower levels of miR-758-3p in tumors predicted worse survivals of EC patients. Furthermore, in a xenograft mouse model, targeted knockdown of EMS and WTAP in ECA-109 cells markedly attenuated the resistance of tumors to cisplatin treatments. Our study uncovers a critical lncRNA-EMS/miR-758-3p/WTAP axis in regulating hypoxia-mediated drug resistance to cisplatin in EC.
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Affiliation(s)
- Zi-Jiang Zhu
- Department of Thoracic Surgery 2, Gansu Provincial People's Hospital, Lanzhou 730000, China
| | - Yao Pang
- Department of Thoracic Surgery 2, Gansu Provincial People's Hospital, Lanzhou 730000, China
| | - Gang Jin
- Department of Thoracic Surgery 2, Gansu Provincial People's Hospital, Lanzhou 730000, China
| | - Hong-Yi Zhang
- Department of Thoracic Surgery 2, Gansu Provincial People's Hospital, Lanzhou 730000, China
| | - Wen-Hao Wang
- Department of Thoracic Surgery 2, Gansu Provincial People's Hospital, Lanzhou 730000, China
| | - Jia-Wei Liu
- Department of Thoracic Surgery 2, Gansu Provincial People's Hospital, Lanzhou 730000, China
| | - Guang-Xin Tuo
- School of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
| | - Peng Wu
- School of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
| | - Yi Yang
- School of Clinical Medicine, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
| | - Ze-Quan Wang
- School of Clinical Medicine, Ningxia Medical University, Ningxia 750004, China
| | - Kui Wang
- School of Clinical Medicine, Ningxia Medical University, Ningxia 750004, China
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16
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Qi Y, Song C, Zhang J, Guo C, Yuan C. Oncogenic LncRNA CASC9 in Cancer Progression. Curr Pharm Des 2021; 27:575-582. [PMID: 32940174 DOI: 10.2174/1381612826666200917150130] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/07/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Long non-coding RNAs (LncRNAs), with the length of over 200 nucleotides, that originate from intergenic, antisense, or promoter-proximal regions, are a large family of RNAs that lack coding capacity. Emerging evidences illustrated that LncRNAs played significant roles in a variety of cellular functions and biological processes in profuse human diseases, especially in cancers. Cancer susceptibility candidate 9 (CASC9), as a member of the LncRNAs group, firstly found its oncogenic function in esophageal cancer. In the following recent studies, a growing amount of human malignancies are verified to be correlated with CASC9, most of which are derived from the squamous epithelium tissue. This present review attempts to highlight the latest insights into the expression, functional roles, and molecular mechanisms of CASC9 in different human malignancies. METHODS In this review, the latest findings related to the pathophysiological processes of CASC9 in human cancers were summarized and analyzed, and the associated studies collected in systematic retrieval of PubMed used lncRNA and CASA9 as keywords. RESULTS CASC9 expression is identified to be aberrantly elevated in a variety of malignancies. The over-expression of CASC9 has been suggested to accelerate cell proliferation, migration, cell growth and drug resistance of cancer cells, while depressing cell apoptosis, revealing its role as an oncogene. Moreover, the current review demonstrated CASC9 as closely related to the neoplastic transformation of squamous epithelial cells and squamous metaplasia in non-squamous epithelial tissues. Finally, we discuss the limitations and tremendous diagnostic/ therapeutic potential of CASC9 in various human cancers. CONCLUSION Long non-coding RNA CASC9 likely serve as useful disease biomarkers or therapeutic targets which be effectively applied in the treatment of different kinds of cancers.
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Affiliation(s)
- Yuying Qi
- China Three Gorges University, School of Medicine, Yichang, 443002, China
| | - Chaoying Song
- China Three Gorges University, School of Medicine, Yichang, 443002, China
| | - Jiali Zhang
- China Three Gorges University, School of Medicine, Yichang, 443002, China
| | - Chong Guo
- China Three Gorges University, School of Medicine, Yichang, 443002, China
| | - Chengfu Yuan
- China Three Gorges University, School of Medicine, Yichang, 443002, China
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17
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Non-Coding RNAs as Biomarkers of Tumor Progression and Metastatic Spread in Epithelial Ovarian Cancer. Cancers (Basel) 2021; 13:cancers13081839. [PMID: 33921525 PMCID: PMC8069230 DOI: 10.3390/cancers13081839] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/08/2021] [Accepted: 04/08/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Despite advances in cancer research in recent years, efficient predictive biomarkers of tumor progression and metastatic spread for ovarian cancer are still missing. Therefore, we critically address recent findings in the field of non-coding RNAs (microRNAs and long non-coding RNAs) and DNA methylation in ovarian cancer patients as promising novel biomarkers of ovarian cancer progression. Abstract Ovarian cancer is one of the most common causes of death among gynecological malignancies. Molecular changes occurring in the primary tumor lead to metastatic spread into the peritoneum and the formation of distant metastases. Identification of these changes helps to reveal the nature of metastases development and decipher early biomarkers of prognosis and disease progression. Comparing differences in gene expression profiles between primary tumors and metastases, together with disclosing their epigenetic regulation, provides interesting associations with progression and metastasizing. Regulatory elements from the non-coding RNA families such as microRNAs and long non-coding RNAs seem to participate in these processes and represent potential molecular biomarkers of patient prognosis. Progress in therapy individualization and its proper targeting also rely upon a better understanding of interactions among the above-listed factors. This review aims to summarize currently available findings of microRNAs and long non-coding RNAs linked with tumor progression and metastatic process in ovarian cancer. These biomolecules provide promising tools for monitoring the patient’s response to treatment, and further they serve as potential therapeutic targets of this deadly disease.
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Tan H, Wu C, Huang B, Jin L, Jiang X. MiR-3666 serves as a tumor suppressor in ovarian carcinoma by down-regulating AK4 via targeting STAT3. Cancer Biomark 2021; 30:355-363. [PMID: 33361582 DOI: 10.3233/cbm-190538] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
As a result of metastasis and high recurrence, ovarian carcinoma (OC) is one of the most frequent gynecological carcinomas affecting women up to now. In spite of advances in OC treatments, the molecular mechanisms underlying OC progression are still needed to be deeply understood. MicroRNAs (miRNAs) with aberrant expressions are widely known to regulate target genes so as to mediate diverse biological activities of tumor cells. In the present study, we inspected the expression profile and latent mechanism of miR-3666 in OC. First of all, our research revealed the down-regulated miR-3666 in OC cells. Furthermore, miR-3666 up-regulation could repress cell proliferation and migration as well as induce cell apoptosis in OC. In addition, we unmasked that miR-3666 targeted STAT3 (signal transducer and activator of transcription 3) and further down-regulated STAT3 expression. Moreover, adenylate kinase 4 (AK4) was transcriptionally enhanced by STAT3, and then miR-3666 restrained AK4 expression by mediating STAT3. In the end, rescue experiments depicted that miR-3666 suppressed the development of OC via STAT3-mediated AK4. We uncovered that miR-3666 inhibited the tumorigenesis and even development of OC via suppressing STAT3/AK4 axis, offering a novel biomarker and therapeutic target for OC.
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Affiliation(s)
- Huiping Tan
- Reproductive Medicine Center, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chunlin Wu
- Center of Reproductive Medicine, The No. 1 Hospital of Wuhan, Wuhan, Hubei, China
| | - Bo Huang
- Reproductive Medicine Center, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiangbing Jiang
- Department of Obstetrics and Gynecology, The No. 1 Hospital of Wuhan, Wuhan, Hubei, China
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Keane S, Martinsson T, Kogner P, Ejeskär K. The loss of DLG2 isoform 7/8, but not isoform 2, is critical in advanced staged neuroblastoma. Cancer Cell Int 2021; 21:170. [PMID: 33726762 PMCID: PMC7962242 DOI: 10.1186/s12935-021-01851-w] [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: 10/13/2020] [Accepted: 02/22/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Neuroblastoma is a childhood neural crest tumor showing large clinical and genetic heterogeneity, one form displaying 11q-deletion is very aggressive. It has been shown that 11q-deletion results in decreased expression of DLG2, a gene residing in the deleted region. DLG2 has a number of different isoforms with the main difference is the presence or absence of a L27 domain. The L27 domain containing DLG proteins can form complexes with CASK/MPP and LIN7 protein family members, which will control cell polarity and signaling. METHODS We evaluated the DLG gene family and the LIN7 gene family for their expression in differently INSS staged neuroblastoma from publically available data and primary tumors, we included two distinct DLG1 and DLG2 N-terminal transcript isoforms encoding L27 domains for their expression. Functionality of DLG2 isoforms and of LIN7A were evaluated in the 11q-deleted neuroblastoma cell line SKNAS. RESULTS In neuroblastoma only two DLG2 isoforms were expressed: isoform 2 and isoform 7/8. Using the array data we could determine that higher expression of DLG members that contain L27 domains correlated to better survival and prognosis. Whilst DLG1 showed a decrease in both isoforms with increased INSS stage, only the full length L27 containing DLG2 transcripts DLG2-isoform 7/8 showed a decrease in expression in high stage neuroblastoma. We could show that the protein encoded by DLG2-isoform 7 could bind to LIN7A, and increased DLG2-isoform 7 gene expression increased the expression of LIN7A, this reduced neuroblastoma cell proliferation and viability, with increased BAX/BCL2 ratio indicating increased apoptosis. CONCLUSION We have provided evidence that gene expression of the L27 domain containing DLG2-isoform 7/8 but not L27 domain lacking DLG2-isoform 2 is disrupted in neuroblastoma, in particular in the aggressive subsets of tumors. The presence of the complete L27 domain allows for the binding to LIN7A, which will control cell polarity and signaling, thus affecting cancer cell viability.
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Affiliation(s)
- Simon Keane
- Translational Medicine, School of Health Sciences, University of Skövde, Skövde, Sweden
| | - Tommy Martinsson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Per Kogner
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Katarina Ejeskär
- Translational Medicine, School of Health Sciences, University of Skövde, Skövde, Sweden.
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20
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Ding Y, Yuan X, Gu W. Circular RNA RBM33 contributes to cervical cancer progression via modulation of the miR-758-3p/PUM2 axis. J Mol Histol 2021; 52:173-185. [PMID: 33398465 DOI: 10.1007/s10735-020-09933-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 11/24/2020] [Indexed: 02/01/2023]
Abstract
Cervical cancer (CC) is a gynecological malignant tumor. Circular RNA (hsa_circ_0001772) (circRBM33) is implicated in the tumorigenesis of cancers. Nevertheless, the role of circRBM33 in CC is indistinct. Quantitative real-time polymerase chain reaction (qRT-PCR) was employed to evaluate the levels of circRBM33, miR-758-3p, and pumilio RNA binding family member 2 (PUM2) mRNA in tissue samples and cells. Cell proliferation, apoptosis, migration, invasion, and glycolysis were assessed using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay, flow cytometry assay, transwell assay, or special commercial kits. Relative protein levels were examined via western blotting. The targeting relationship between circRBM33 or PUM2 and miR-758-3p was verified via dual-luciferase reporter or RNA pull-down assays. The role of circRBM33 was confirmed via tumor formation experiments. CircRPPH1 and PUM2 were upregulated while miR-758-3p was downregulated in CC tissues and cells. Functionally, circRBM33 knockdown constrained tumor growth in vivo and cured CC cell proliferation, migration, invasion, glycolysis, and fostered CC cell apoptosis in in vitro. Mechanistically, circRBM33 sponged miR-758-3p to modulate PUM2 expression. MiR-758-3p inhibitor neutralized circRBM33 silencing-mediated effects on the malignant behaviors of CC cells. PUM2 elevation overturned the suppressive influence of miR-758-3p upregulation on the malignant behaviors of CC cells. CircRBM33 fostered CC advancement via absorbing miR-758-3p and upregulating PUM2, indicating that circRBM33 was a possible target for CC treatment.
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Affiliation(s)
- Yi Ding
- Department of Obstetrics & Gynaecology, the Affiliated Jintan Hospital of Jiangsu University, Changzhou, 213200, People's Republic of China.
- Department of Obstetrics & Gynaecology, The Affiliated Jintan Hospital of Jiangsu University, No. 16, Nanmen Street, Jintan District, Changzhou City, Jiangsu Province, People's Republic of China.
| | - Xia Yuan
- Department of Obstetrics & Gynaecology, the Affiliated Jintan Hospital of Jiangsu University, Changzhou, 213200, People's Republic of China
| | - Wenwen Gu
- Department of Obstetrics & Gynaecology, the Affiliated Jintan Hospital of Jiangsu University, Changzhou, 213200, People's Republic of China
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Yang Z, Hui Y, Peng H, Zhang H, Li M, Song L, Li F, Cui X. Identification of a PLCE1‑regulated competing endogenous RNA regulatory network for esophageal squamous cell carcinoma. Oncol Rep 2021; 45:857-868. [PMID: 33650665 PMCID: PMC7859920 DOI: 10.3892/or.2021.7921] [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: 03/10/2020] [Accepted: 08/26/2020] [Indexed: 02/07/2023] Open
Abstract
Phospholipase C epsilon 1 (PLCE1) and the competing endogenous RNA (ceRNA) network are crucial for tumorigenesis and the progression of esophageal squamous cell carcinoma (ESCC). However, whether PLCE1 can regulate the ceRNA network in ESCC has not been clarified. In the present study, we aimed to identify the PLCE1-regulated ceRNA network and further elucidate the regulatory mechanisms by which ESCC is promoted. Microarray analysis was used to identify differentially expressed lncRNAs (DELs) and differentially expressed genes (DEGs) from three pairs of samples of PLCE-silenced Eca109 and control Eca109 cells. Next, the ceRNA regulatory network was established and visualized in Cytoscape, and functional enrichment analysis was performed to analyze DEGs from ceRNAs. Protein-protein interaction (PPI) networks among the DEGs were established by the STRING database to screen hub genes. Kaplan-Meier survival analysis was used to validate hub genes. Finally, PLCE1-related hub gene/lncRNA/miRNA axes were also constructed based on the ceRNA network. A total of 105 DELs and 346 DEGs were found to be dysregulated in the microarray data (|log2FC| >1.5, adjusted P<0.05). We constructed a PLCE1-regulated ceRNA network that incorporated 12 lncRNAs, 43 miRNAs, and 169 mRNAs. Functional enrichment analysis indicated that the DEGs might be associated with ESCC onset and development. A PPI network was established, and 9 hub genes [WD and tetratricopeptide repeats 1 (WDTC1), heat shock protein family A (Hsp70) member 5 (HSPA5), N-ethylmaleimide sensitive factor, vesicle fusing ATPase (NSF), fibroblast growth factor 2 (FGF2), cyclin dependent kinase inhibitor 1A (CDKN1A or P21), bone morphogenetic protein 2 (BMP2), complement C3 (C3), GM2 ganglioside activator (GM2A) and discs large MAGUK scaffold protein 4 (DLG4)] were determined from the network. Kaplan-Meier survival analysis validated four hub genes (BMP2, CDKN1A, GM2A, and DLG4) that were treated as prognostic factors. Ultimately, hub gene/lncRNA/miRNA subnetworks were obtained based on the 4 hub genes, 13 DEmiRNAs, and 10 DELs. In conclusion, the PLCE1-regulated ceRNA contributes to the onset and progression of ESCC and the underlying molecular mechanisms may provide insights into personalized prognosis and new therapies for ESCC patients.
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Affiliation(s)
- Zhihao Yang
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Yi Hui
- The People's Hospital of Suzhou National Hi‑Tech District, Suzhou, Jiangsu 215010, P.R. China
| | - Hao Peng
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Hongpan Zhang
- Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Menglu Li
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Lingxie Song
- Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Feng Li
- Department of Pathology and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Xiaobin Cui
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
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Razavi ZS, Tajiknia V, Majidi S, Ghandali M, Mirzaei HR, Rahimian N, Hamblin MR, Mirzaei H. Gynecologic cancers and non-coding RNAs: Epigenetic regulators with emerging roles. Crit Rev Oncol Hematol 2020; 157:103192. [PMID: 33290823 DOI: 10.1016/j.critrevonc.2020.103192] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 12/24/2022] Open
Abstract
Gynecologic cancers involve the female genital organs, such as the vulva, vagina, cervix, endometrium, ovaries, and fallopian tubes. The occurrence and frequency of gynecologic cancer depends on personal lifestyle, history of exposure to viruses or carcinogens, genetics, body shape, and geographical habitat. For a long time, research into the molecular biology of cancer was broadly restricted to protein-coding genes. Recently it has been realized that non-coding RNAs (ncRNA), including long noncoding RNAs (LncRNAs), microRNAs, circular RNAs and piRNAs (PIWI-interacting RNAs), can all play a role in the regulation of cellular function within gynecological cancer. It is now known that ncRNAs are able to play dual roles, i.e. can exert both oncogenic or tumor suppressive functions in gynecological cancer. Moreover, several clinical trials are underway looking at the biomarker and therapeutic roles of ncRNAs. These efforts may provide a new horizon for the diagnosis and treatment of gynecological cancer. Herein, we summarize some of the ncRNAs that have been shown to be important in gynecological cancers.
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Affiliation(s)
| | - Vida Tajiknia
- Department of Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shahab Majidi
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran
| | - Maryam Ghandali
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Rahimian
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences (IUMS), Tehran, Iran.
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA, 02115, USA; 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.
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Lei R, Feng L, Hong D. ELFN1-AS1 accelerates the proliferation and migration of colorectal cancer via regulation of miR-4644/TRIM44 axis. Cancer Biomark 2020; 27:433-443. [PMID: 31929141 DOI: 10.3233/cbm-190559] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Faced with the increasing colorectal cancer (CRC) cases, the interrogation of pivotal molecules in CRC appears to be vitally important. Long non-coding RNAs (lncRNAs) are well-known regulators of gene expression at transcriptional, post-transcriptional or epigenetic level, among which the competing endogenous RNA (ceRNA) network is a common way that lncRNAs exert their properties. The current study aimed to provide a new insight into improving the outcomes of CRC patients. Our study detected that ELFN1-AS1 expression was elevated in CRC tissues and cells, and ELFN1-AS1 upregulation was correlated with poor prognosis of CRC sufferers. Besides, it was viewed that ELFN1-AS1 knockdown impeded the proliferation and migration abilities as well as activated the apoptosis ability of CRC cells. In subsequence, mechanism assays also displayed that ELFN1-AS1 targeted miR-4644 to augment TRIM44 level. Finally, rescue experiments confirmed that TRIM44 took part in the ELFN1-AS1-medatied promotional influences on CRC cells proliferation and migration. In conclusion, ELFN1-AS1 exerted pro-proliferation, anti-apoptosis and pro-migration functions on CRC cells by acting as a sponge of miR-4644 to increase TRIM44 expression at mRNA and protein level, providing an additional molecule responsible for the carcinogenesis and progression for CRC.
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Affiliation(s)
- Ren Lei
- Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Liuchun Feng
- Respiratory Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Deng Hong
- Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
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LncRNAs in Ovarian Cancer Progression, Metastasis, and Main Pathways: ceRNA and Alternative Mechanisms. Int J Mol Sci 2020; 21:ijms21228855. [PMID: 33238475 PMCID: PMC7700431 DOI: 10.3390/ijms21228855] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022] Open
Abstract
Ovarian cancer (OvCa) develops asymptomatically until it reaches the advanced stages with metastasis, chemoresistance, and poor prognosis. Our review focuses on the analysis of regulatory long non-coding RNAs (lncRNAs) competing with protein-coding mRNAs for binding to miRNAs according to the model of competitive endogenous RNA (ceRNA) in OvCa. Analysis of publications showed that most lncRNAs acting as ceRNAs participate in OvCa progression: migration, invasion, epithelial-mesenchymal transition (EMT), and metastasis. More than 30 lncRNAs turned out to be predictors of survival and/or response to therapy in patients with OvCa. For a number of oncogenic (CCAT1, HOTAIR, NEAT1, and TUG1 among others) and some suppressive lncRNAs, several lncRNA/miRNA/mRNA axes were identified, which revealed various functions for each of them. Our review also considers examples of alternative mechanisms of actions for lncRNAs besides being ceRNAs, including binding directly to mRNA or protein, and some of them (DANCR, GAS5, MALAT1, and UCA1 among others) act by both mechanisms depending on the target protein. A systematic analysis based on the data from literature and Panther or KEGG (Kyoto Encyclopedia of Genes and Genomes) databases showed that a significant part of lncRNAs affects the key pathways involved in OvCa metastasis, EMT, and chemoresistance.
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25
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Zhang Y, Zhou H, Zhang M, Xing L, Yang C, Xia B, Lou G. Integrated analysis of a competing endogenous RNA network reveals an 11-lncRNA prognostic signature in ovarian cancer. Aging (Albany NY) 2020; 12:25153-25171. [PMID: 33223503 PMCID: PMC7803494 DOI: 10.18632/aging.104116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/09/2020] [Indexed: 01/22/2023]
Abstract
Long noncoding RNA (lncRNA) can function as a competing endogenous RNA (ceRNA) involved in tumor initiation and progression. However, the prognostic roles of lncRNAs in the integrated analysis of the ceRNA network in ovarian cancer (OVC) are still lacking. This study aimed to identify lncRNAs associated with the prognosis of OVC. Differential expression analysis and WGCNA were used to screen OVC-specific RNAs. A lncRNA-miRNA-mRNA regulatory network consisting of 201 lncRNAs, 85 miRNA and 146 mRNAs was constructed, and functional enrichment and protein-protein network analyses were performed. Then, the OVC-specific RNAs were submitted to Cox regression analysis. Twelve differentially expressed lncRNAs and mRNAs were identified as significantly associated with OS of OVC patients. Meanwhile, 11 lncRNAs (including C4A-AS1, LINC02408, LINC00488) were established as prognostic risk formulas. The low-risk group had better OS and DFS than the high-risk group (P <0.01). Univariate and multivariate Cox regression analyses revealed the 11-lncRNA risk score as an independent prognostic factor. A prognostic nomogram was developed based on independent prognostic factors. Our data provide evidence that the 11-lncRNA signature could serve as an independent prognostic indicator. This study also suggests that these 11 lncRNAs potentially participate in the progression of OVC.
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Affiliation(s)
- Yongjian Zhang
- Department of Gynecology Oncology, Harbin Medical University Cancer Hospital, Harbin 150081, Heilongjiang Province, China
| | - Hu Zhou
- Department of Gynecology Oncology, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Meiyin Zhang
- Department of Gynecology Oncology, Harbin Medical University Cancer Hospital, Harbin 150081, Heilongjiang Province, China
| | - Linan Xing
- Department of Gynecology Oncology, Harbin Medical University Cancer Hospital, Harbin 150081, Heilongjiang Province, China
| | - Chang Yang
- Department of Gynecology Oncology, Harbin Medical University Cancer Hospital, Harbin 150081, Heilongjiang Province, China
| | - Bairong Xia
- Department of Gynecology Oncology, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Ge Lou
- Department of Gynecology Oncology, Harbin Medical University Cancer Hospital, Harbin 150081, Heilongjiang Province, China
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Silencing long non-coding RNA CASC9 inhibits colorectal cancer cell proliferation by acting as a competing endogenous RNA of miR-576-5p to regulate AKT3. Cell Death Discov 2020; 6:115. [PMID: 33298846 PMCID: PMC7603495 DOI: 10.1038/s41420-020-00352-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/29/2020] [Accepted: 10/13/2020] [Indexed: 12/20/2022] Open
Abstract
Increasing studies have shown that long non-coding RNAs (lncRNAs) are regarded as important regulators in the occurrence and development of colorectal cancer (CRC). Although lncRNA CASC9 has been studied in CRC, the detailed regulatory mechanism of CASC9 in CRC is still unclear. In this study, we found that CASC9 was significantly upregulated in CRC tissues and cell lines compared to normal controls and that aberrant expression was associated with the tumor-node-metastasis (TNM) stage of CRC. Functionally, CASC9 depletion efficiently inhibited the proliferation of CRC cells and induced cell apoptosis in vitro. Mechanistically, CASC9 was mainly enriched in the cytoplasm of CRC cells and interacted directly with miR-576-5p. Downregulation of miR-576-5p reversed the inhibitory effect of CASC9 siRNA on CRC cell progression. Furthermore, AKT3 has been identified as a downstream target of miR-576-5p. Spearman’s correlation analysis revealed that AKT3 was negatively correlated with miR-576-5p but positively correlated with CASC9. Downregulation of miR-576-5p restored the effect of CASC9 silencing on AKT3 expression. Therefore, silencing CASC9 could downregulate the expression of AKT3 by reducing the competitive binding of CASC9 to miR-576-5p, thus suppressing CRC cell proliferation and promoting cell apoptosis. In summary, we identified CASC9 as an oncogenic lncRNA in CRC and defined the CASC9/miR-576-5p/AKT3 axis, which might be considered a potential therapeutic target for CRC patients, as a novel molecular mechanism implicated in the proliferation and apoptosis of CRC.
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Gao L, Li X, Nie X, Guo Q, Liu Q, Qi Y, Liu J, Lin B. Construction of novel mRNA-miRNA-lncRNA regulatory networks associated with prognosis of ovarian cancer. J Cancer 2020; 11:7057-7072. [PMID: 33123295 PMCID: PMC7592000 DOI: 10.7150/jca.49557] [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: 06/16/2020] [Accepted: 10/02/2020] [Indexed: 12/11/2022] Open
Abstract
Background: Ovarian cancer (OC) is the most lethal malignancy in the female reproductive system. Growing evidences demonstrates that competing endogenous RNA (ceRNA) network play crucial roles in the occurrence and progression of tumors. Therefore, we aimed to explore and identify novel mRNA-miRNA-lncRNA ceRNA networks associated with prognosis of OC. Methods: The differentially expressed gene (DEGs) of four expression profiles datasets (GSE5438, GSE40595, GSE38666 and GSE26712) were collected from Gene Expression Omnibus (GEO) database and analyzed with NetworkAnalyst. Intersection of DEGs were further employed for Gene Ontology (GO) and Kyoto Encyclopedia of Gene and Genome (KEGG) pathway analysis. Protein-protein interaction (PPI) network and hub genes of DEGs were also identified. The expression levels and survival analysis of the hub genes in OC and their upstream miRNAs and lncRNAs were performed by various bioinformatics databases. More importantly, ceRNA networks were constructed based on mRNA-miRNA-lncRNA in OC. Results: A total of 178 DEGs including 38 upregulated and 140 downregulated genes from intersected DEGs of four expression profiles were identified in OC. Functional enrichment analysis suggested that the commonly DEGs were enriched in regulating enzyme inhibitor activity, glycosaminoglycan and G protein-coupled receptor binding, cell morphogenesis, and involved in pathways including metabolic process, proteoglycans in cancer. Top 10 hub genes with higher connectivity degree were selected for subsequent expression and prognosis analysis. After take expression levels and prognostic roles of hub genes and their upstream miRNAs and lncRNAs in OC into consideration, 2 mRNAs (TACC3 and CXCR4), 2 miRNAs (hsa-miR-425-5p and hsa-miR-146a-5p) and 3 lncRNAs (FUT8-AS1, LINC00665 and LINC01535) were significantly associated with the poor prognosis of OC. The mRNA-miRNA-lncRNA networks (TACC3-hsa-miR-425-5p-FUT8-AS1 and CXCR4-hsa-miR-146a-5p-LINC00665/LINC01535) were eventually constructed in OC based on ceRNA mechanism. Conclusion: We successfully constructed novel ceRNA network associated with the prognosis of ovarian cancer, which may provide a new strategy for early diagnosis and therapeutic intervention of OC.
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Affiliation(s)
- Lingling Gao
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Xiao Li
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Xin Nie
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Qian Guo
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Qing Liu
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Yue Qi
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Juanjuan Liu
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Bei Lin
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
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Duan HY, Ding X, Luo HS. Clinicopathological association and prognostic value of long non-coding RNA CASC9 in patients with cancer: A meta-analysis. Exp Ther Med 2020; 20:3823-3831. [PMID: 32855732 PMCID: PMC7444322 DOI: 10.3892/etm.2020.9096] [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: 04/11/2020] [Accepted: 07/01/2020] [Indexed: 01/10/2023] Open
Abstract
Several studies have reported a prognostic role of the long non-coding RNA (lncRNA) cancer susceptibility candidate 9 (CASC9) in various cancer types, but its clinical significance has remained inconclusive. The aim of the present meta-analysis was to evaluate the impact of CASC9 expression on the prognosis and clinicopathological features of patients with cancer patients. The PubMed, Embase, Cochrane Library and Web of Science databases were searched for relevant literature and eight studies, including 565 patients with cancer, were selected. The quality of these studies was appraised with the Newcastle-Ottawa Scale (NOS) and the association between CASC9 expression and prognosis or clinicopathological features was analyzed. Patients with high expression levels of CASC9 in their tumor tissues had a lower overall survival rate compared with those in the low CASC9 expression group (hazard ratio=2.25, 95% CI: 1.60-3.17, P<0.001). Furthermore, elevated CASC9 expression was significantly associated with deeper tumor invasion [odds ratio (OR)=2.66, 95% CI: 1.72-4.14, P<0.001], poor tumor differentiation (OR=2.44, 95% CI: 1.24-4.78, P=0.009), lymph node metastasis (OR=3.42, 95% CI: 1.98-5.92, P<0.001) and advanced clinical stage (OR=3.21, 95% CI: 2.21-4.66, P<0.001). In conclusion, CASC9 is a promising biomarker for predicting the prognosis of cancer patients and should be validated in the clinic.
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Affiliation(s)
- Hou-Yu Duan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiang Ding
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - He-Sheng Luo
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Yuan B, Sun R, Du Y, Jia Z, Yao W, Yang J. STAT3-Induced Upregulation of lncRNA CASC9 Promotes the Progression of Bladder Cancer by Interacting with EZH2 and Affecting the Expression of PTEN. Onco Targets Ther 2020; 13:9147-9157. [PMID: 32982303 PMCID: PMC7502394 DOI: 10.2147/ott.s248006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 07/29/2020] [Indexed: 12/12/2022] Open
Abstract
Objective Long non-coding RNA (lncRNA) cancer susceptibility candidate 9 (CASC9) has been reported to play a vital role in tumorigenesis. This study explored the biological role of CASC9 and its regulation mechanism in bladder cancer (BC). Methods Gene expression was evaluated using quantitative reverse transcription polymerase chain reaction and Western blot. The functional role of CASC9 in BC was studied using Cell Counting Kit-8, colony formation assay, scratch wound healing assay, transwell invasion assay, and xenograft tumor assay. In addition, the mechanism of CASC9 function in BC was determined using RNA immunoprecipitation assay and chromatin immunoprecipitation assay. Results CASC9 was upregulated in BC tissues and cell lines, and correlated with the staging and metastasis in BC. Knockdown of CASC9 inhibited the proliferation, migration, and invasion of BC cells. Similarly, silencing of CASC9 inhibited tumor growth in vivo. Signal transducer and activator of transcription 3 (STAT3) was upregulated in BC tissues and cell lines, and positively correlated with CASC9 in BC tissues. Moreover, CASC9 was shown to be regulated by STAT3 in BC cells. Furthermore, CASC9 regulated phosphatase and tensin homolog (PTEN) expression by interacting with enhancer of zeste homolog 2 (EZH2). More significantly, CASC9 silencing-mediated inhibition of BC progression was partly reversed by EZH2 overexpression or PTEN inhibition. Conclusion Upregulation of CASC9 induced by STAT3 promoted the progression of BC by interacting with EZH2 and affecting the expression of PTEN, representing a novel regulatory mechanism for BC progression.
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Affiliation(s)
- Bo Yuan
- Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province 450052, People's Republic of China
| | - Rongqing Sun
- Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province 450052, People's Republic of China
| | - Yuming Du
- Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province 450052, People's Republic of China
| | - Zhankui Jia
- Urinary Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province 450052, People's Republic of China
| | - Wencheng Yao
- Urinary Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province 450052, People's Republic of China
| | - Jinjian Yang
- Urinary Surgery Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province 450052, People's Republic of China
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Zhang T, Yang J, Gong F, Li L, Li A. Long non-coding RNA CASC9 promotes the progression of retinoblastoma via interacting with miR-145-5p. Cell Cycle 2020; 19:2270-2280. [PMID: 32772636 DOI: 10.1080/15384101.2020.1802813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Abnormal expression of long non-coding RNA cancer susceptibility candidate 9 (CASC9) has been found to play vital roles in many human tumors. However, the role and the regulatory mechanism of CASC9 have not yet been demonstrated in retinoblastoma (RB). Hence, we performed this study to explore the function and mechanism of CASC9 in RB. CASC9 expression was firstly detected in human RB tissues and cells. The influence of CASC9 on the malignant phenotypes of RB cells, including cell proliferation, invasion, epithelial-mesenchymal transition (EMT) and apoptosis, was analyzed by overexpressing or silencing CASC9. The association between CASC9, miR-145-5p and E2F transcription factor 3 (E2F3) was determined by dual-luciferase reporter assay and RNA immunoprecipitation. We found that CASC9 expression was elevated in RB tissues and cells. Overexpression of CASC9 significantly facilitated the proliferation, invasion and EMT of RB cells. On the contrary, knockdown of CASC9 inhibited the proliferation, invasion and EMT, while enhanced the apoptosis of RB cells. CASC9 acted as a competing endogenous RNA (ceRNA) for miR-145-5p to regulate E2F3. Additionally, miR-145-5p inhibitor and E2F3 overexpression both partly reversed the malignant phenotypes of RB cells affected by CASC9 knockdown. However, miR-145-5p overexpression further strengthened these features induced by CASC9 downregulation. These findings suggested that CASC9 contributed to RB development by regulating E2F3 via sponging miR-145-5p. CASC9 might be a possible therapeutic target for RB.
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Affiliation(s)
- Ting Zhang
- Department of Abdomen Ultrasound, The First Hospital of Jilin University , Changchun, China
| | - Jingpu Yang
- Department of Otolaryngology-Head and Neck Surgery, The Second Hospital of Jilin University , Changchun, China
| | - Fangchao Gong
- Department of Thoracic Surgery, The First Hospital of Jilin University , Changchun, China
| | - Lin Li
- Department of Ophthalmology, China-Japan Union Hospital of Jilin University , Changchun, China
| | - Aipeng Li
- Department of Ophthalmology, The First Hospital of Jilin University , Changchun, Jilin, China
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Sharma U, Barwal TS, Acharya V, Tamang S, Vasquez KM, Jain A. Cancer Susceptibility Candidate 9 (CASC9): A Novel Targetable Long Noncoding RNA in Cancer Treatment. Transl Oncol 2020; 13:100774. [PMID: 32450549 PMCID: PMC7256364 DOI: 10.1016/j.tranon.2020.100774] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/26/2020] [Accepted: 04/01/2020] [Indexed: 12/19/2022] Open
Abstract
Based on epidemiological data provided by the World Health Organization (2018), cancer is the second most prevalent cause of death worldwide. Several factors are thought to contribute to the high mortality rate in cancer patients, including less-than-optimal diagnostic and therapeutic strategies. Thus, there is an urgent need to identify accurate biomarkers with diagnostic, prognostic, and potential therapeutic applications. In this regard, long noncoding RNAs (lncRNAs) hold immense potential due to their regulatory roles in cancer development and associated cancer hallmarks. Recently, CASC9 transcripts have attracted significant attention due to their altered expression during the pathogenesis of cancer and their apparent contributions to various cancer-associated phenotypes involving a broad spectrum of molecular mechanisms. Here, we have provided an in-depth review describing the known functions of the lncRNA CASC9 in cancer development and progression.
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Affiliation(s)
- Uttam Sharma
- Department of Zoology, Central University of Punjab, Bathinda, Punjab, India
| | - Tushar Singh Barwal
- Department of Zoology, Central University of Punjab, Bathinda, Punjab, India
| | - Varnali Acharya
- Department of Zoology, Central University of Punjab, Bathinda, Punjab, India
| | - Suraksha Tamang
- Department of Zoology, Central University of Punjab, Bathinda, Punjab, India
| | - Karen M Vasquez
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Dell Pediatric Research Institute, 1400 Barbara Jordan Blvd, Austin, TX, 78723, USA
| | - Aklank Jain
- Department of Zoology, Central University of Punjab, Bathinda, Punjab, India.
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Cao W, Lee H, Wu W, Zaman A, McCorkle S, Yan M, Chen J, Xing Q, Sinnott-Armstrong N, Xu H, Sailani MR, Tang W, Cui Y, Liu J, Guan H, Lv P, Sun X, Sun L, Han P, Lou Y, Chang J, Wang J, Gao Y, Guo J, Schenk G, Shain AH, Biddle FG, Collisson E, Snyder M, Bivona TG. Multi-faceted epigenetic dysregulation of gene expression promotes esophageal squamous cell carcinoma. Nat Commun 2020; 11:3675. [PMID: 32699215 PMCID: PMC7376194 DOI: 10.1038/s41467-020-17227-z] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 06/17/2020] [Indexed: 12/20/2022] Open
Abstract
Epigenetic landscapes can shape physiologic and disease phenotypes. We used integrative, high resolution multi-omics methods to delineate the methylome landscape and characterize the oncogenic drivers of esophageal squamous cell carcinoma (ESCC). We found 98% of CpGs are hypomethylated across the ESCC genome. Hypo-methylated regions are enriched in areas with heterochromatin binding markers (H3K9me3, H3K27me3), while hyper-methylated regions are enriched in polycomb repressive complex (EZH2/SUZ12) recognizing regions. Altered methylation in promoters, enhancers, and gene bodies, as well as in polycomb repressive complex occupancy and CTCF binding sites are associated with cancer-specific gene dysregulation. Epigenetic-mediated activation of non-canonical WNT/β-catenin/MMP signaling and a YY1/lncRNA ESCCAL-1/ribosomal protein network are uncovered and validated as potential novel ESCC driver alterations. This study advances our understanding of how epigenetic landscapes shape cancer pathogenesis and provides a resource for biomarker and target discovery.
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Grants
- U01 CA217882 NCI NIH HHS
- R01 CA239604 NCI NIH HHS
- K22 CA217997 NCI NIH HHS
- R01 CA227807 NCI NIH HHS
- U54 CA224081 NCI NIH HHS
- R01 CA211052 NCI NIH HHS
- S10 OD020141 NIH HHS
- U24 CA210974 NCI NIH HHS
- R01 CA222862 NCI NIH HHS
- R01 CA230263 NCI NIH HHS
- R01 CA169338 NCI NIH HHS
- R01 CA204302 NCI NIH HHS
- R01 CA178015 NCI NIH HHS
- the National Natural Science Foundation of China (Grants 81171992, 31570899), the Natural Science Foundation of Henan (Grants 182102310328, 162300410279, 182300410374, 192102310096); the Education Department of Henan Province(18B310022,19A320037).
- National Natural Science Foundation of China (National Science Foundation of China)
- the Natural Science Foundation of Henan (Grants 182102310328, 162300410279, 182300410374, 192102310096); the Education Department of Henan Province(18B310022,19A320037). This work used the Genome Sequencing Service Center by Stanford Center for Genomics and Personalized Medicine Sequencing Center, supported by the grant award NIH S10OD020141. E.A.C acknowledge funding support from NCI Grants R01 [CA178015, CA222862, CA227807, CA239604, CA230263] and U24 [CA210974]. T.G.B acknowledges funding support from NIH / NCI U01CA217882, NIH / NCI U54CA224081, NIH / NCI R01CA204302, NIH / NCI R01CA211052, NIH / NCI R01CA169338, and the Pew-Stewart Foundations.
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Affiliation(s)
- Wei Cao
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China.
| | - Hayan Lee
- Department of Genetics, School of Medicine, Stanford University, CA, USA
| | - Wei Wu
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA.
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA.
| | - Aubhishek Zaman
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Sean McCorkle
- Computational Science Initiative, Brookhaven National Laboratory, Upton, NY, USA
| | - Ming Yan
- Basic Medical College, Zhengzhou University, Zhengzhou, China
| | - Justin Chen
- Department of Genetics, School of Medicine, Stanford University, CA, USA
| | - Qinghe Xing
- Institutes of Biomedical Sciences and Children's Hospital, Fudan University, Shanghai, China
| | | | - Hongen Xu
- Precision Medicine Center, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - M Reza Sailani
- Department of Genetics, School of Medicine, Stanford University, CA, USA
| | - Wenxue Tang
- Precision Medicine Center, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Yuanbo Cui
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Jia Liu
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Hongyan Guan
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Pengju Lv
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Xiaoyan Sun
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Lei Sun
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Pengli Han
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Yanan Lou
- Translational Medical Center, Zhengzhou Central Hospital Affiliated Zhengzhou University, Zhengzhou, China
| | - Jing Chang
- Jiangsu Mai Jian Biotechnology Development Company, Wuxi, China
| | - Jinwu Wang
- Department of Pathology, Linzhou Cancer Hospital, Linzhou, China
| | - Yuchi Gao
- Annoroad Gene Company, Beijing, China
| | - Jiancheng Guo
- Precision Medicine Center, The Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Gundolf Schenk
- Bakar Computational Health Sciences Institute, University of California San Francisco, San Francisco, CA, USA
| | - Alan Hunter Shain
- Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
| | - Fred G Biddle
- Department of Biological Sciences, University of Calgary, Calgary, Canada
| | - Eric Collisson
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Michael Snyder
- Department of Genetics, School of Medicine, Stanford University, CA, USA.
| | - Trever G Bivona
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA.
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA.
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Zhao W, Chen T, Zhao Y. Upregulated lncRNA CASC9 Contributes to Progression of Non-Small Cell Lung Cancer Through Inhibition of miR-335-3p and Activation S100A14 Expression. Onco Targets Ther 2020; 13:6027-6036. [PMID: 32606808 PMCID: PMC7321690 DOI: 10.2147/ott.s249973] [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: 02/15/2020] [Accepted: 05/14/2020] [Indexed: 12/24/2022] Open
Abstract
Introduction Non-small cell lung cancer (NSCLC) is a deadly cancer type worldwide and the main sub-type of lung cancer. Cancer susceptibility candidate-9 (CASC9) was reported to be a key player in cancer progression. However, its function and underlying mechanism in NSCLC remain unclear. Materials and Methods Expression level of CASC9 in NSCLC tissues and cells was measured with RT-qPCR. Biological roles of CASC9 in NSCLC were analyzed with a series of in vitro experiments. Potential mechanisms of CASC9 in NSCLC were analyzed by predicting and validating the possible targets of CASC9 in NSCLC. Results In this study, we found CASC9 expression was upregulated in NSCLC tissues and cell lines. High CASC9 expression was identified as a predictor for poorer overall survival of NSCLC patients. Furthermore, functional assays showed CASC9 knockdown suppressed NSCLC cell proliferation, migration, and invasion, while CASC9 overexpression caused opposite effects. We also found microRNA-335-3p (miR-335-3p) could act as a target of CASC9 in NSCLC and the inhibition effect of CASC9 knockdown on NSCLC progression required the activity of miR-335-3p. In addition, we identified S100 calcium-binding protein A14 (S100A14) acts as a target of miR-335-3p. Discussion Taken together, our study suggested CASC9 could promote NSCLC progression via miR-335-3p/S100A14 axis. The CASC9/miR-335-3p/S100A14 regulatory triplets identified in this work might provide new therapeutic strategies for NSCLC treatment.
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Affiliation(s)
- Weigang Zhao
- Department of Thoracic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200030, People's Republic of China
| | - Tangbing Chen
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, People's Republic of China
| | - Yonghong Zhao
- Department of Thoracic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200030, People's Republic of China
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Huo W, Tan D, Chen Q. CASC9 Facilitates Cell Proliferation in Bladder Cancer by Regulating CBX2 Expression. Nephron Clin Pract 2020; 144:388-399. [PMID: 32570259 DOI: 10.1159/000507828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 04/09/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND As the seventh most common urologic carcinoma worldwide, approximately 430,000 patients are diagnosed with bladder cancer (BC) every year. Increasing evidence indicates that long noncoding RNAs (lncRNAs) play crucial roles in the progression of BC. OBJECTIVES This study is aimed to explore the function and mechanism of CASC9 in BC. METHODS Bioinformatics analysis and experiments including RT-qPCR, luciferase reporter, Cell Counting Kit-8 assay, Western blot, RNA immunoprecipitation assay, and TUNEL staining were applied to explore the function and mechanism of CASC9 in BC tissues and cell lines. RESULTS Our study demonstrated that CASC9 was upregulated in BC tissues and cell lines. Moreover, we found that CASC9 knockdown notably decreased proliferation while increased apoptotic rate in BC cells. Mechanistically, bioinformatics prediction and following experiments indicated that CASC9 worked as a competing endogenous RNA (ceRNA) of CBX2 through sponging miR-497-5p. Meanwhile, we recognized that CASC9 and miR-497-5p negatively regulated each other in a mutual way. Furthermore, we found that miR-497-5p shared binding site with CBX2. In addition, miR-497-5p could negatively regulated CBX2, while CASC9 could positively regulated CBX2. Rescue assays reveled that CBX2 overexpression could reversed the reduction of cell proliferation or the enhancement of cell apoptosis induced by CASC9 suppression. CONCLUSIONS Our study manifests the first evidence that CASC9 serves as an oncogene in BC and accelerates cell proliferation by modulating miR-497-5p/CBX2 axis. The present study may provide a cogitable target for BC therapy.
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Affiliation(s)
- Wenqian Huo
- Department of Urology, The General Hospital of Chongqing Steel Company, Chongqing, China
| | - Dan Tan
- Department of Urology, The General Hospital of Chongqing Steel Company, Chongqing, China
| | - Qingbiao Chen
- Department of Urology Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan, China,
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Chen Y, Bao C, Zhang X, Lin X, Fu Y. Knockdown of LINC00662 represses AK4 and attenuates radioresistance of oral squamous cell carcinoma. Cancer Cell Int 2020; 20:244. [PMID: 32549791 PMCID: PMC7296632 DOI: 10.1186/s12935-020-01286-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022] Open
Abstract
Background LncRNAs play crucial roles in the development of carcinomas. However, the investigation of LINC00662 in Oral squamous cell carcinoma (OSCC) is still elusive. Methods qRT-PCR assay tested the expression levels of LINC00662, hnRNPC and AK4. With exposure to irradiation, CCK-8, colony formation, flow cytometry and western blot experiments, respectively determined the function of LINC00662 in the radiosensitivity of OSCC cells. Then RIP and western blot assays affirmed the interaction between hnRNPC protein and LINC00662 or AK4. Finally, rescue assays validated the regulation mechanism of LINC00662 in the radioresistance of OSCC. Results In the present report, LINC00662 was overexpressed in OSCC and its silencing could alleviate radioresistance of OSCC. Furthermore, the interaction between hnRNPC protein and LINC00662 or AK4 was uncovered. Besides, LINC00662 regulated AK4 mRNA stability through binding to hnRNPC protein. To sum up, LINC00662 modulated the radiosensitivity of OSCC cells via hnRNPC-modulated AK4. Conclusion The molecular mechanism of the LINC00662/hnRNPC/AK4 axis was elucidated in OSCC, which exhibited a promising therapeutic direction for patients with OSCC.
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Affiliation(s)
- Yangzong Chen
- Department of Chemotherapy and Radiotherapy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang China
| | - Chunchun Bao
- Department of Chemotherapy and Radiotherapy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang China
| | - Xiuxing Zhang
- Department of Chemotherapy and Radiotherapy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang China
| | - Xinshi Lin
- Department of Chemotherapy and Radiotherapy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang China
| | - Yimou Fu
- Department of Chemotherapy and Radiotherapy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang China
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Li L, Zhang F. Novel long noncoding RNA LINC01385 promotes nasopharyngeal carcinoma proliferation via the miR-140-3p/Twist1 signaling pathway. Cell Cycle 2020; 19:1352-1362. [PMID: 32264733 PMCID: PMC7469515 DOI: 10.1080/15384101.2020.1750133] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 12/19/2019] [Accepted: 03/11/2020] [Indexed: 10/24/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been verified as a key modulator in tumor progression. However, the functions of lncRNAs in nasopharyngeal carcinoma (NPC) remain unclear. In the present study, we explored lncRNAs expression patterns in NPC tissues by GEO dataset and selected the high expression lncRNA (LINC01385) to further study. Our data showed that LINC01385 expression was significantly increased NPC and correlated with advanced clinical features and poor prognosis. Function assays showed that knockdown of LINC01385 expression reduced the proliferation and invasion abilities of NPC cells in vitro. In mechanism, LINC01385 acted as a molecular sponge of miR-140-3p in NPC cells, Twist1 mRNA was validated as a direct target of miR-140-3p in NPC cells. The effects of the LINC01385 knockdown on malignant characteristics of NPC cells were greatly attenuated by miR-140-3p inhibition or Twist1 overexpression. Thus, we illustrated that LINC01385 aggravated the progression of NPC by sponging miR-140-3p and upregulating Twist1 expression, which implied LINC01385 might serve as a new potential therapeutic target for NPC treatment.
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Affiliation(s)
- Lu Li
- Department of Otology, The First Affiliated Hospital of Zhengzhou University , Zhengzhou, Henan, China
| | - Feng Zhang
- Department of Otology, The First Affiliated Hospital of Zhengzhou University , Zhengzhou, Henan, China
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Zhang XH, Li BF, Ding J, Shi L, Ren HM, Liu K, Huang CC, Ma FX, Wu XY. LncRNA DANCR-miR-758-3p-PAX6 Molecular Network Regulates Apoptosis and Autophagy of Breast Cancer Cells. Cancer Manag Res 2020; 12:4073-4084. [PMID: 32581581 PMCID: PMC7269637 DOI: 10.2147/cmar.s254069] [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] [Indexed: 12/22/2022] Open
Abstract
Objective This study set out to probe into the effects of long non-coding RNA (LncRNA) differentiation antagonizing non-protein coding RNA (DANCR) on apoptosis and autophagy of breast cancer (BC) cells. Methods The expression levels of DANCR, miR-758-3p and paired box 6 (PAX6) in BC tissues and cell lines were detected. The transcription and protein levels of PAX6, apoptosis-related factors (caspase-3, caspase-9, Bax/Bcl-2), and autophagy-related factors (LC3B, Atg5, Beclin-1) in BC cells were detected. The cell proliferation, apoptosis, autophagy and the regulatory relationship between genes and target genes were analyzed. Results DANCR and PAX6 were up-regulated in BC tissues and cell lines, while miR-758-3p was opposite. Down-regulating DANCR inhibited the malignant proliferation of BC cells and also promoted apoptosis and autophagy, which showed that caspase-3, caspase-9, Bax/Bcl-2, LC3B, Atg5 transcription and protein levels increased, while Beclin-1 transcription and protein levels decreased. DANCR regulated miR-758-3p in a targeted manner, and its over-expression could weaken the anti-cancer effect of miR-758-3p on BC cells. In addition, miR-758-3p also directly targeted PAX6, and knocking down its expression could weaken the inhibitory effect of down-regulating PAK6 on BC cell apoptosis and autophagy. We also found that DANCR acted as a competitive endogenous RNA sponge miR-758-3p, thus regulating the PAX6 expression. Conclusion DANCR-miR-758-3p-PAX6 molecular network plays a key regulatory role in BC cell apoptosis and autophagy, which may provide reference for treating patients.
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Affiliation(s)
- Xian Hu Zhang
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
| | - Bing Feng Li
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
| | - Jie Ding
- Physical Examination Department, Suzhou Central Blood Station, Suzhou, Anhui 234000, People's Republic of China
| | - Lei Shi
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
| | - Huo Ming Ren
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
| | - Kui Liu
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
| | - Chuan Cai Huang
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
| | - Fu Xiao Ma
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
| | - Xin Yao Wu
- Department of General Surgery, Suzhou First People's Hospital, Suzhou, Anhui 234000, People's Republic of China
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Cao C, Zhou S, Hu J. Long noncoding RNA MAGI2‐AS3/miR‐218‐5p/GDPD5/SEC61A1 axis drives cellular proliferation and migration and confers cisplatin resistance in nasopharyngeal carcinoma. Int Forum Allergy Rhinol 2020; 10:1012-1023. [PMID: 32450008 DOI: 10.1002/alr.22562] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 02/06/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Cheng Cao
- Department of Otorhinolaryngology Yinzhou Hospital, affiliated with the Medical School of Ningbo University Ningbo Zhejiang China
| | - Shao Zhou
- Department of Otorhinolaryngology Yinzhou Hospital, affiliated with the Medical School of Ningbo University Ningbo Zhejiang China
| | - Jiandao Hu
- Department of Otorhinolaryngology Yinzhou Hospital, affiliated with the Medical School of Ningbo University Ningbo Zhejiang China
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Zhang X, Xu J, Zhang H, Sun J, Li N, Huang X. MicroRNA-758 acts as a tumor inhibitor in colorectal cancer through targeting PAX6 and regulating PI3K/AKT pathway. Oncol Lett 2020; 19:3923-3930. [PMID: 32391100 PMCID: PMC7204622 DOI: 10.3892/ol.2020.11516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 02/06/2020] [Indexed: 12/24/2022] Open
Abstract
Recently, a number of microRNAs (miRNAs) have been reported to play different roles in human cancers, including colorectal cancer (CRC). However, the specific role of miR-758 has not been clarified in CRC. Therefore, the aim of the present study was to explore the role of miR-758 in CRC. RT-qPCR and western blot analysis were used to quantify the expression of miR-758 and genes. The function of miR-758 in CRC was investigated using Transwell, CCK-8 and luciferase reporter assays. According to the results, the downregulation of miR-758 expression was associated with aggressive behavior and poor prognosis in CRC patients. miR-758 was shown to restrain the cell viability and metastasis in CRC. In addition, it was confirmed that miR-758 directly targets PAX6 and inhibits CRC progression through targeting PAX6. The results also revealed that miR-758 blocked EMT and PI3K/AKT pathway in CRC. In conclusion, miR-758 acts as a tumor suppressor in CRC by downregulating PAX6.
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Affiliation(s)
- Xinli Zhang
- Medical Records Management Office, Qingdao West Coast New Area Central Hospital, Qingdao, Shandong 266555, P.R. China
| | - Jumei Xu
- Department of Hepatobiliary Gastrointestinal Surgery, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Hongchang Zhang
- Department of Infectious Diseases, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Jilan Sun
- Sterilization Supply Room, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Na Li
- Department of Radiology, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
| | - Xianyu Huang
- Radiotherapy Center, Qingdao Central Hospital, Qingdao University, Qingdao, Shandong 266042, P.R. China
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Lan X, Wu N, Wu L, Qu K, Osoro EK, Guan D, Du X, Wang B, Chen S, Miao J, Ren J, Liu L, Li H, Ning Q, Li D, Lu S. The Human Novel Gene LNC-HC Inhibits Hepatocellular Carcinoma Cell Proliferation by Sequestering hsa-miR-183-5p. MOLECULAR THERAPY-NUCLEIC ACIDS 2020; 20:468-479. [PMID: 32278306 PMCID: PMC7150434 DOI: 10.1016/j.omtn.2020.03.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 12/17/2022]
Abstract
Hepatocellular carcinoma (HCC) is the most commonly diagnosed cancer and the leading cause of cancer mortality. Several lines of evidence have demonstrated the aberrant expression of long noncoding RNAs (lncRNAs) in carcinogenesis and their universal regulatory properties. A thorough understanding of lncRNA regulatory roles in HCC pathology would contribute to HCC prevention and treatment. In this study, we identified a novel human lncRNA, LNC-HC, with significantly reduced levels in hepatic tumors from patients with HCC. MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-dimethyltetrazolium bromide) assays as well as colony formation and wound healing experiments showed that LNC-HC significantly inhibited the proliferation of the HCC cell line Huh7. Xenograft transplantation of LNC-HC-overexpressing Huh7 cells in nude mice resulted in the production of smaller tumors. Mechanistically, LNC-HC inhibited the proliferation of HCC cells by directly interacting with hsa-miR-183-5p. LNC-HC rescued the expression of five tumor suppressors, including AKAP12, DYRK2, FOXN3, FOXO1, and LATS2, that were verified as target genes of hsa-miR-183-5p. Overall, human LNC-HC was identified as a novel tumor suppressor that could inhibit HCC cell proliferation in vitro and suppress tumor growth in vivo by competitively binding hsa-miR-183-5p as a competing endogenous RNA (ceRNA). These findings suggest that LNC-HC could be a biomarker of HCC and provide a novel therapeutic target for HCC treatment.
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Affiliation(s)
- Xi Lan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China.
| | - Nan Wu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China
| | - Litao Wu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China
| | - Kai Qu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Ezra Kombo Osoro
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China
| | - Dongxian Guan
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xiaojuan Du
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China
| | - Bo Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi 710061, China
| | - Sifan Chen
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ji Miao
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Juan Ren
- Department of Reproductive Medicine, The Fourth Hospital of Xi'an, Xi'an, Shaanxi 710004, China
| | - Li Liu
- Department of Basic Medical Science, Xi'an Medical College, Xi'an, Shaanxi, China
| | - Haiyun Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China
| | - Qilan Ning
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China
| | - Dongmin Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China
| | - Shemin Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; Key Laboratory of the Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China, Beijing, China.
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Ding Y, Li X, Zhang Y, Zhang J. Long Non-Coding RNA Cancer Susceptibility 9 (CASC9) Up-Regulates the Expression of ERBB2 by Inhibiting miR-193a-5p in Colorectal Cancer. Cancer Manag Res 2020; 12:1281-1292. [PMID: 32110102 PMCID: PMC7039100 DOI: 10.2147/cmar.s234620] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/18/2019] [Indexed: 12/21/2022] Open
Abstract
Background Emerging studies have reported that long non-coding RNAs (lncRNAs) were crucial regulators in the progression of colorectal cancer (CRC). LncRNA susceptibility 9 (CASC9) was involved in several cancers; however, its role in CRC remains unknown. Methods RT-PCR was done to probe the expression of CASC9 and miR-193a-5p in CRC samples. CRC cell lines (HCT116 and SW480) were used as cell models. The biological influence of CASC9 on cancer cells was studied using CCK-8 assay, Transwell assay and TUNEL assay in vitro, and subcutaneous xenotransplanted tumor model in vivo. Interaction between CASC9 and miR-193a-5p was investigated by bioinformatics analysis, RT-PCR, and luciferase reporter assay. The expression level of the downstream gene of miR-193a-5p, erb-b2 receptor tyrosine kinase 2 (ERBB2), was tested by Western blot. Results CASC9 was significantly up-regulated in CRC samples, while miR-193a-5p was markedly down-regulated. Overexpression of CASC9 promoted viability, migration and invasion of CRC cells, while overexpression of miR-193a-5p had the opposite effect. CASC9 could down-regulate miR-193a-5p via sponging it, and there was a negative relevancy between CASC9 and miR-193a-5p in CRC samples. CASC9 also enhanced the expression levels of ERBB2, while this effect could be reversed by co-transfection with miR-193a-5p. Conclusion CASC9, an oncogenic lncRNA, was abnormally up-regulated in CRC tissues, and it could indirectly modulate the expression of ERBB2 via reducing the expression level of miR-193a-5p.
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Affiliation(s)
- Yuansheng Ding
- The First Department of General Surgery, Linyi Central Hospital, Linyi 276400, Shandong Province, People's Republic of China
| | - Xiaoyan Li
- The First Department of General Surgery, Linyi Central Hospital, Linyi 276400, Shandong Province, People's Republic of China
| | - Yucui Zhang
- The First Department of General Surgery, Linyi Central Hospital, Linyi 276400, Shandong Province, People's Republic of China
| | - Jie Zhang
- The First Department of General Surgery, Linyi Central Hospital, Linyi 276400, Shandong Province, People's Republic of China
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Chen Y, Li Y, Gao H. Long noncoding RNA CASC9 promotes the proliferation and metastasis of papillary thyroid cancer via sponging miR-488-3p. Cancer Med 2020; 9:1830-1841. [PMID: 31943867 PMCID: PMC7050070 DOI: 10.1002/cam4.2839] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/15/2019] [Accepted: 12/24/2019] [Indexed: 12/24/2022] Open
Abstract
Cancer susceptibility candidate 9 (CASC9) is a recently identified lncRNA that acted as a tumor promotor in diversified cancer types. However, its role in papillary thyroid cancer (PTC) remains unknown. The expression of CASC9 was measured in 52 human PTC tissues and PTC cell lines as well as their controls. The proliferation, migration, and invasion of PTC cells were determined after knockdown or overexpression of CASC9 to evaluate the effect of CASC9 on PTC cells. Also, the role of PTC tumorigenesis was confirmed in mice xenograft models. Additionally, the underlying mechanisms of CASC9 were further researched. We found that CASC9 expression was augmented in human PTC tissues and cells. Higher CASC9 expression was associated with large tumor size, advanced stage, or lymph node metastasis. Downregulation of CASC9 significantly attenuated the proliferative, migrative, and invasive abilities of PTC cells, and suppressed tumorigenesis in vivo. While overexpression of CASC9 elevated the proliferation, migration, and invasion of PTC cells. miR‐488‐3p expression was decreased, and ADAM9 level was increased in PTC tissues and cells. CASC9 expression was negatively related to miR‐488‐3p, but positively associated with ADAM9 expression in PTC tissues. Molecular mechanism analysis revealed that CASC9 functioned via sponging miR‐488‐3p to regulate ADAM9 expression, followed by activation of EGFR‐Akt signaling. In conclusion, lncRNA CASC9 promoted the malignant phenotypes of PTC via modulating miR‐488‐3p/ADAM9 pathway. This study may provide a novel therapeutic target for the treatment of PTC.
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Affiliation(s)
- Yonghui Chen
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China
| | - Yaomei Li
- Department of Nuclear Medicine, The Mine Hospital of Xuzhou, Xuzhou, China
| | - Hongbo Gao
- Department of Radionuclide Treatment Center, Beijing Nuclear Industry Hospital, Beijing, China
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Jin Y, Xie H, Duan L, Zhao D, Ding J, Jiang G. Long Non-Coding RNA CASC9 And HIF-1α Form A Positive Feedback Loop To Facilitate Cell Proliferation And Metastasis In Lung Cancer. Onco Targets Ther 2019; 12:9017-9027. [PMID: 31802910 PMCID: PMC6827505 DOI: 10.2147/ott.s226078] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/21/2019] [Indexed: 11/23/2022] Open
Abstract
Background The long noncoding RNA cancer susceptibility 9 (CASC9) has been recognized as an important modulator of cell growth and metastasis in many cancers. However, its detailed roles in lung cancer remain unclear. In this study, we aimed to investigate its functions and molecular mechanism in lung cancer progression. Methods Expression of CASC9 was determined in lung cancer tissues and cell lines by real-time PCR. CCK-8, colony formation, wound healing and transwell assays were done to evaluate the cell proliferation, migration and invasion capacities in vitro. Real-time PCR, Western blot and RNA immunoprecipitation (RIP) assays were performed to dissect the mechanisms. Results CASC9 was overexpressed in lung cancer specimens and cell lines. Knockdown of CASC9 inhibited cell proliferation, migration, invasion and EMT in lung cancer cells. While overexpression of CASC9 in normal lung epithelial cells did the opposite. CASC9 interacted with HIF-1α and enhanced its protein stability. They formed a positive feedback loop by reciprocally inducing each other expression and regulated cell proliferation and metastasis. Conclusion Our findings demonstrated a novel regulatory signaling pathway, namely the CASC9/HIF-1α axis, which was involved in lung cancer progression. These findings can provide valuable insights on the potential therapy application for lung cancer.
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Affiliation(s)
- Yuxing Jin
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Huikang Xie
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Liang Duan
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Deping Zhao
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Jiaan Ding
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Gening Jiang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
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LncRNA TRG-AS1 promotes glioblastoma cell proliferation by competitively binding with miR-877-5p to regulate SUZ12 expression. Pathol Res Pract 2019; 215:152476. [DOI: 10.1016/j.prp.2019.152476] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/13/2019] [Accepted: 05/25/2019] [Indexed: 01/10/2023]
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Xu J, Zhang J. LncRNA TP73-AS1 is a novel regulator in cervical cancer via miR-329-3p/ARF1 axis. J Cell Biochem 2019; 121:344-352. [PMID: 31232491 DOI: 10.1002/jcb.29181] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/29/2019] [Indexed: 12/29/2022]
Abstract
Cervical cancer holds one of the highest morbidity and mortality in various types of cancers. It even leads to the most number of cancer-related deaths of women. A lot of research has indicated that the anomalous expression of long noncoding RNAs (lncRNAs) would induce carcinogenesis and is associated with poor prognosis of patients with cancer. However, the function and mechanism of many lncRNAs still call for further research. Tumor Protein P73 Antisense RNA 1 (TP73-AS1) is no exception. LncRNA TP73-AS1 has been found to promote cancer progressions in various cancers. It is upregulated in cervical cancer cells. The proliferation and migration ability of cervical cancer cells can also be boosted by TP73-AS1 in return. Meanwhile, miRNA-329-3p is downregulated in cervical cancer cells and could bind with both TP73-AS1 and ADP Ribosylation Factor 1 (ARF1). TP73-AS1 inhibited miR-329-3p expression while miR-329-3p inhibited ARF1 expression. More importantly, TP73-AS1 can positively regulate ARF1 expression. Based on all these experiments, TP73-AS1 regulates ARF1 expression by competitively binding with miR-329-3p, thus regulating cervical cancer progression. Further rescue assays confirmed TP73-AS1 regulates cervical cell proliferation and migration via miR-329-3p/ARF1. TP73-AS1 might serve as a novel regulator in cervical cancer.
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Affiliation(s)
- Jingning Xu
- Department of Obstetrics and Gynecology, Northwest Women and Children's Hospital, Xi'an, Shaanxi, China
| | - Jinmei Zhang
- Department of Obstetrics and Gynecology, Chang'an District Hospital, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Luo K, Geng J, Zhang Q, Xu Y, Zhou X, Huang Z, Shi KQ, Pan C, Wu J. LncRNA CASC9 interacts with CPSF3 to regulate TGF-β signaling in colorectal cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:249. [PMID: 31186036 PMCID: PMC6560732 DOI: 10.1186/s13046-019-1263-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 06/03/2019] [Indexed: 12/19/2022]
Abstract
Background Colorectal cancer (CRC) is the third most frequent cancer and the second leading cause of cancer-related death worldwide. Increasing evidence indicates that the deregulation of long noncoding RNAs (lncRNAs) contributes to tumor initiation and progression; however, little is known about the biological role of cancer susceptibility candidate 9 (CASC9) in CRC. Methods Novel lncRNAs potentially involved in CRC tumorigenesis were identified from datasets downloaded from The Cancer LncRNome Atlas and The Atlas of Noncoding RNAs in Cancer. The CRC cell lines HCT-116, HCT-116 p53−/−, SW620, SW480, HT-29, LoVo, LS-174T, and RKO were used. Colony-formation, MTS, cell-cycle, apoptosis, and in-vivo tumorigenesis assays were used to determine the role of CASC9 in CRC cell growth in vitro and in vivo. Potential interaction between CASC9 and cleavage and polyadenylation specificity factor subunit 3 (CPSF3) was evaluated using RNA immunoprecipitation and RNA-protein pull-down assays. RNA-sequencing was performed to analyze gene expression following CASC9 knockdown. RT-qPCR, western blotting, and mRNA decay assays were performed to study the mechanisms involved. Results CASC9 was frequently upregulated in CRC, which was correlated with advanced TNM stage, and higher CASC9 levels were associated with poor patient outcomes. Knockdown of CASC9 inhibited growth and promoted apoptosis in CRC cells, whereas ectopic CASC9 expression promoted cell growth in vitro and in vivo. We demonstrated that CPSF3 is a CASC9-interacting protein, and knockdown of CPSF3 mimicked the effects of CASC9 knockdown in CRC cells. Furthermore, we found that CASC9 exerts its oncogenic activity by modulating TGFβ2 mRNA stability and upregulating the levels of TGFβ2 and TERT, resulting in an increase in phosphorylated SMAD3 and activation of TGF-β signaling, and enhanced TERT complex function in CRC cells. Finally, CPSF3 was significantly upregulated in CRC tissues as compared with adjacent or non-adjacent normal colon tissues, and CASC9, CPSF3, and TGFβ2 levels in human CRC tissues were positively correlated. Conclusions CASC9 is a promising prognostic predictor for patients with CRC and the CASC9-CPSF3-TGFβ2 axis is a potential therapeutic target for CRC treatment. Electronic supplementary material The online version of this article (10.1186/s13046-019-1263-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kaili Luo
- Institute of Genomic Medicine, Wenzhou Medical University, 268 Xueyuan Road, Wenzhou, 325000, Zhejiang, People's Republic of China
| | - Jingwen Geng
- Institute of Genomic Medicine, Wenzhou Medical University, 268 Xueyuan Road, Wenzhou, 325000, Zhejiang, People's Republic of China
| | - Qinkai Zhang
- Institute of Genomic Medicine, Wenzhou Medical University, 268 Xueyuan Road, Wenzhou, 325000, Zhejiang, People's Republic of China
| | - Yesha Xu
- Institute of Genomic Medicine, Wenzhou Medical University, 268 Xueyuan Road, Wenzhou, 325000, Zhejiang, People's Republic of China
| | - Xunzhu Zhou
- Institute of Genomic Medicine, Wenzhou Medical University, 268 Xueyuan Road, Wenzhou, 325000, Zhejiang, People's Republic of China
| | - Zheng Huang
- Institute of Genomic Medicine, Wenzhou Medical University, 268 Xueyuan Road, Wenzhou, 325000, Zhejiang, People's Republic of China
| | - Ke-Qing Shi
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of ZheJiang Province, Wenzhou, 325000, Zhejiang, People's Republic of China.,Center of Precision medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, People's Republic of China
| | - Chenwei Pan
- Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China.,Pediatric Hepatitis & Liver disease Clinical Center, The Second Affiliated Hospital and Yuying Children of Wenzhou Medical University, Wenzhou, 325027, Zhejiang, People's Republic of China
| | - Jianmin Wu
- Institute of Genomic Medicine, Wenzhou Medical University, 268 Xueyuan Road, Wenzhou, 325000, Zhejiang, People's Republic of China.
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Gao H, Li X, Zhan G, Zhu Y, Yu J, Wang J, Li L, Wu W, Liu N, Guo X. Long noncoding RNA MAGI1-IT1 promoted invasion and metastasis of epithelial ovarian cancer via the miR-200a/ZEB axis. Cell Cycle 2019; 18:1393-1406. [PMID: 31122127 PMCID: PMC6592227 DOI: 10.1080/15384101.2019.1618121] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is the most lethal gynecologic malignancy, and its vulnerability to metastasis contributes to the poor outcomes of EOC patients. Long noncoding RNAs (lncRNAs) were verified to play a pivotal role in EOC metastasis. However, the potential role of lncRNA membrane-associated guanylate kinase inverted 1 (MAGI1) intronic transcript (MAGI1-IT1) in EOC is largely unknown. In this study, the function and mechanisms of MAGI1-IT1 in EOC metastasis were explored profoundly. First, MAGI1-IT1 expression was found to be significantly decreased in overexpressing miR-200a EOC cells. Second, MAGI1-IT1 expression was remarkably increased in metastatic EOC tissues, and high MAGI1-IT1 was dramatically associated with EOC FIGO III-IV stage; in addition, MAGI1-IT1 might be related to EOC dissemination via epithelial-mesenchymal transition (EMT). Next, a series of gain- and loss-of-function assays verified that, although MAGI1-IT1 has no significant role in EOC proliferation and subcutaneous xenograft growth, the upregulation of MAGI1-IT1 can remarkably facilitate EOC EMT phenotype, cells migration and invasion ability and intraperitoneal metastasis in nude mice, while downregulation of MAGI1-IT1 led to the opposite effect in vitro. Moreover, MAGI1-IT1 was validated to promote EOC metastasis through upregulation of ZEB1 and ZEB2 by competitively binding miR-200a, and the restrictive effects of MAGI1-IT1 depletion on EOC metastasis could be reversed by inhibition of miR-200a and upregulation of ZEB1 and ZEB2. Collectively, these results suggest that MAGI1-IT1 may work as a ceRNA in promoting EOC metastasis through miR-200a and ZEB1/2 and may be a potential therapeutic target for EOC.
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Affiliation(s)
- Hao Gao
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Xiaofeng Li
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Guangxi Zhan
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Yong Zhu
- b Department of Obstetrics and Gynecology , Central Theater of the Chinese PLA , Wuhan , China
| | - Jing Yu
- c Department of Pathology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Jiapo Wang
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Li Li
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Weimin Wu
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Na Liu
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
| | - Xiaoqing Guo
- a Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital , Tongji University School of Medicine , Shanghai , China
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LncRNA LINC01061 sponges miR-612 to regulate the oncogenic role of SEMA4D in cholangiocarcinoma. Biochem Biophys Res Commun 2019; 513:465-471. [PMID: 30967271 DOI: 10.1016/j.bbrc.2019.03.125] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 03/19/2019] [Indexed: 12/21/2022]
Abstract
Cholangiocarcinoma (CCA) is the most usual malignancy of biliary tract, possessing a relatively low overall survival rate due to limited treatment options. Recently, long non-coding RNAs (lncRNAs) have been testified to have marked regulatory impacts on human cancers. The purpose of this paper is to explore the potent regulation mechanism of LINC01061 involved in CCA. Firstly, it was observed that LINC01061 expression was heightened in CCA cell lines, whose knockdown suppressed cell proliferation, induced cell apoptosis and restrained cell migration. Besides, LINC01061 existing in the cytoplasm of CCA cells interacted with miR-612. Moreover, subsequent experiments affirmed that LINC01061 regulated SEMA4D expression by acting as a competing endogenous RNA (ceRNA) of miR-612. At last, rescue assays validated that SEMA4D overexpression restored the repression caused by LINC01061 silence on the biological activities of CCA containing cell proliferation, apoptosis and migration. To sum up, our present exploration demonstrated that LINC01061 sponges miR-612 so as to upregulate SEMA4D expression for the progression of CCA, suggesting an optional promising and effective target for the therapy of patients with CCA.
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