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Huang L, Chen X, Yang X, Zhang Y, Liang Y, Qiu X. Elucidating epigenetic mechanisms governing odontogenic differentiation in dental pulp stem cells: an in-depth exploration. Front Cell Dev Biol 2024; 12:1394582. [PMID: 38863943 PMCID: PMC11165363 DOI: 10.3389/fcell.2024.1394582] [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: 03/01/2024] [Accepted: 05/13/2024] [Indexed: 06/13/2024] Open
Abstract
Epigenetics refers to the mechanisms such as DNA methylation and histone modification that influence gene expression without altering the DNA sequence. These epigenetic modifications can regulate gene transcription, splicing, and stability, thereby impacting cell differentiation, development, and disease occurrence. The formation of dentin is intrinsically linked to the odontogenic differentiation of dental pulp stem cells (DPSCs), which are recognized as the optimal cell source for dentin-pulp regeneration due to their varied odontogenic potential, strong proliferative and angiogenic characteristics, and ready accessibility Numerous studies have demonstrated the critical role of epigenetic regulation in DPSCs differentiation into specific cell types. This review thus provides a comprehensive review of the mechanisms by which epigenetic regulation controls the odontogenesis fate of DPSCs.
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Affiliation(s)
| | | | | | | | | | - Xiaoling Qiu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
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Liu XS, Zhang Y, Liu ZY, Gao Y, Yuan LL, Zeng DB, Tan F, Wan HB, Pei ZJ. METTL3 as a novel diagnosis and treatment biomarker and its association with glycolysis, cuproptosis and ceRNA in oesophageal carcinoma. J Cell Mol Med 2024; 28:e18195. [PMID: 38429907 PMCID: PMC10907846 DOI: 10.1111/jcmm.18195] [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: 09/06/2023] [Revised: 11/22/2023] [Accepted: 02/09/2024] [Indexed: 03/03/2024] Open
Abstract
METTL3 has been shown to be involved in regulating a variety of biological processes. However, the relationship between METTL3 expression and glycolysis, cuproptosis-related genes and the ceRNA network in oesophageal carcinoma (ESCA) remains unclear. ESCA expression profiles from databases were obtained, and target genes were identified using differential analysis and visualization. Immunohistochemistry (IHC) staining assessed METTL3 expression differences. Functional enrichment analysis using GO, KEGG and GSEA was conducted on the co-expression profile of METTL3. Cell experiments were performed to assess the effect of METTL3 interference on tumour cells. Correlation and differential analyses were carried out to assess the relationship between METTL3 with glycolysis and cuproptosis. qRT-PCR was used to validate the effects of METTL3 interference on glycolysis-related genes. Online tools were utilized to screen and construct ceRNA networks based on the ceRNA theory. METTL3 expression was significantly higher in ESCA compared to the controls. The IHC results were consistent with the above results. Enrichment analysis revealed that METTL3 is involved in multiple pathways associated with tumour development. Significant correlations were observed between METTL3 and glycolysis-related genes and cuproptosis-related gene. Experiments confirmed that interfered with METTL3 significantly inhibited glucose uptake and lactate production in tumour cells, and affected the expression of glycolytic-related genes. Finally, two potential ceRNA networks were successfully predicted and constructed. Our study establishes the association between METTL3 overexpression and ESCA progression. Additionally, we propose potential links between METTL3 and glycolysis, cuproptosis and ceRNA, presenting a novel targeted therapy strategy for ESCA.
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Affiliation(s)
- Xu-Sheng Liu
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
- Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yu Zhang
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Zi-Yue Liu
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yan Gao
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Ling-Ling Yuan
- Department of Pathology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Dao-Bing Zeng
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Fan Tan
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Hua-Bing Wan
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Zhi-Jun Pei
- Department of Nuclear Medicine, Hubei Provincial Clinical Research Center for precision Diagnosis and Treatment of liver cancer, Taihe Hospital, Hubei University of Medicine, Shiyan, China
- Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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3
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Wan N, Liu Q, Shi J, Wang S. LncRNA SNHG25 Predicts Poor Prognosis and Promotes Progression in Osteosarcoma via the miR-497-5p/SOX4 Axis. Comb Chem High Throughput Screen 2024; 27:725-744. [PMID: 37278038 PMCID: PMC11092561 DOI: 10.2174/1386207326666230602122618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 03/20/2023] [Accepted: 03/27/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND Osteosarcoma is a disease that primarily affects adolescents with skeletal immaturity. LncRNAs are abnormally expressed and correlated with osteosarcoma patients' prognosis. We identified aberrant expression of LncRNA SNHG25 (small nucleolar RNA host gene 25) in osteosarcoma and analyzed the molecular mechanisms by which it regulates osteosarcoma progression. METHODS The expression levels of SNHG25 in tumour specimens and cells were measured by RTqPCR. Loss-of-function assays were conducted to investigate the functional role of SNHG25 in vitro and in vivo. Bioinformatic predictions, dual-luciferase reporter assays, and western blotting were performed to explore the possible underlying mechanisms. RESULTS SNHG25 was highly expressed in osteosarcoma cells and tissues. The Kaplan-Meier curve showed that the survival rate of patients with high SNHG25 expression was significantly lower than those with low SNHG25 expression. Functional studies have indicated that inhibition of SNHG25 suppresses cell proliferation, migration, and invasion, while promoting apoptosis. SNHG25 knockdown suppresses osteosarcoma tumour growth in vivo. SNHG25 functions as a sponge for miR-497-5p in osteosarcoma cells. The level of SNHG25 was negatively correlated with that of miR-497-5p. The proliferation, invasion, and migration of osteosarcoma cells were restored by transfection of the miR-497-5p inhibitor in the SNHG25 knockdown group. CONCLUSION SNHG25 was determined to function as an oncogene by promoting osteosarcoma cell proliferation, invasion, and migration through the miR-497-5p/SOX4 axis. Upregulation of SNHG25 expression indicated poor prognosis in patients with osteosarcoma, which showed that SNHG25 may serve as a potential therapeutic target and prognostic biomarker in osteosarcoma.
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Affiliation(s)
- Ningjun Wan
- Ningxia Medical University, Yinchuan, Ningxia, China
- Department of Orthopedics, People’s Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia, China
| | - Qiang Liu
- Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jiandang Shi
- Department of Orthopedics, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Siliang Wang
- Ningxia Medical University, Yinchuan, Ningxia, China
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Zeng H, Zhou S, Cai W, Kang M, Zhang P. LncRNA SNHG1: role in tumorigenesis of multiple human cancers. Cancer Cell Int 2023; 23:198. [PMID: 37684619 PMCID: PMC10492323 DOI: 10.1186/s12935-023-03018-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/06/2023] [Indexed: 09/10/2023] Open
Abstract
Small nucleolar RNA host gene 1 (SNHG1) is an important member of the SNHG family. This family is composed of a group of host genes that can be processed into small nucleolar RNAs and play important biological functions. In an oncogenic role, the SNHG1 expression is increased in various cancers, which has immense application prospects in the diagnosis, treatment, and prognosis of malignant tumors. In this review, we have summarized the role and molecular mechanism of SNHG1 in the development of various cancers. In addition, we have emphasized the clinical significance of SNHG1 in cancers in our article. This molecule is expected to be a new marker for potential usage in the diagnosis, prognosis, and treatment of cancer.
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Affiliation(s)
- Huang Zeng
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Shouang Zhou
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Weiqiang Cai
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Mingqiang Kang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, 29 Xinquan Road, Gulou, Fuzhou, 350001, China.
| | - Peipei Zhang
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, 29 Xinquan Road, Gulou, Fuzhou, 350001, China.
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Xiaotong S, Xiao L, Shiyu L, Zhiguo B, Chunyang F, Jianguo L. LncRNAs could play a vital role in osteosarcoma treatment: Inhibiting osteosarcoma progression and improving chemotherapy resistance. Front Genet 2023; 13:1022155. [PMID: 36726721 PMCID: PMC9885180 DOI: 10.3389/fgene.2022.1022155] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023] Open
Abstract
Osteosarcoma (OS) is one of the most common primary solid malignant tumors in orthopedics, and its main clinical treatments are surgery and chemotherapy. However, a wide surgical resection range, functional reconstruction of postoperative limbs, and chemotherapy resistance remain as challenges for patients and orthopedists. To address these problems, the discovery of new effective conservative treatments is important. Long non-coding RNAs (lncRNAs) are RNAs longer than 200 nucleotides in length that do not encode proteins. Researchers have recently found that long non-coding RNAs are closely associated with the development of OS, indicating their potentially vital role in new treatment methods for OS. This review presents new findings regarding the association of lncRNAs with OS and summarizes potential clinical applications of OS with lncRNAs, including the downregulation of oncogenic lncRNAs, upregulation of tumor suppressive lncRNAs, and lncRNAs-based treatment to improve chemotherapy resistance. We hope these potential methods will be translated into clinical applications and greatly reduce patient suffering.
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Affiliation(s)
- Shi Xiaotong
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Li Xiao
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Liao Shiyu
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Bi Zhiguo
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Feng Chunyang
- Department of Obstetrics and Gynecology, Renji Hospital of Shanghai Jiao Tong University, Shanghai, China,*Correspondence: Feng Chunyang, ; Liu Jianguo,
| | - Liu Jianguo
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China,*Correspondence: Feng Chunyang, ; Liu Jianguo,
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The imminent role of microRNAs in salivary adenoid cystic carcinoma. Transl Oncol 2022; 27:101573. [PMID: 36335706 PMCID: PMC9646983 DOI: 10.1016/j.tranon.2022.101573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/01/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Unfortunately, despite the severe problem associated with salivary adenoid cystic carcinoma (SACC), it has not been studied in detail yet. Therefore, the time has come to understand the oncogenic cause of SACC and find the correct molecular markers for diagnosis, prognosis, and therapeutic target to tame this disease. Recently, we and others have suggested that non-coding RNAs, specifically microRNAs and long non-coding RNAs, can be ideal biomarkers for cancer(s) diagnosis and progression. Herein, we have shown that various miRNAs, like miR-155, miR‑103a‑3p, miR-21, and miR-130a increase the oncogenesis process, whereas some miRNAs such as miR-140-5p, miR-150, miR-375, miR-181a, miR-98, miR-125a-5p, miR-582-5p, miR-144-3p, miR-320a, miR-187 and miR-101-3p, miR-143-3p inhibit the salivary adenoid cystic carcinoma progression. Furthermore, we have found that miRNAs also target many vital genes and pathways like mitogen-activated protein kinases-snail family transcriptional repressor 2 (MAPK-Snai2), p38/JNK/ERK, forkhead box C1 protein (FOXC1), mammalian target of rapamycin (mTOR), integrin subunit beta 3 (ITGB3), epidermal growth factor receptor (EGFR)/NF-κB, programmed cell death protein 4 (PDCD4), signal transducer and activator of transcription 3 (STAT3), neuroblastoma RAS (N-RAS), phosphatidylinositol-3-kinase (PI3K)/Akt, MEK/ERK, ubiquitin-like modifier activating enzyme 2 (UBA2), tumor protein D52 (TPD52) which play a crucial role in the regulation of salivary adenoid cystic carcinoma. Therefore, we believe that knowledge from this manuscript will help us find the pathogenesis process in salivary adenoid cystic carcinoma and could also give us better biomarkers of diagnosis and prognosis of the disease.
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Zhou Q, Li T, Qin Q, Huang X, Wang Y. Ferroptosis in lymphoma: Emerging mechanisms and a novel therapeutic approach. Front Genet 2022; 13:1039951. [PMID: 36406116 PMCID: PMC9669386 DOI: 10.3389/fgene.2022.1039951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/24/2022] [Indexed: 11/16/2023] Open
Abstract
Unlike apoptosis, necroptosis, autophagy, and pyroptosis, ferroptosis represents a new type of cell death, which is characterized by iron-dependent lipid peroxidation. This process relies largely on the metabolite reactive oxygen species (ROS), phospholipids containing polyunsaturated fatty acids (PUFA-PL), transition metal iron, intra-, and intercellular signaling events, and environmental stress that regulate cellular metabolism and ROS levels. Recent studies show that ferroptosis plays an important role in tumorigenesis, tumor development, and the treatment of hematological malignancies, including lymphoma. Despite the constant emergence of new drugs, the differences in morphological features, immunophenotypes, biological patterns, rates of onset, and response to treatment in lymphoma pose major therapeutic challenges. Since lymphoma is associated with ferroptosis and shows sensitivity towards it, targeting the potential regulatory factors may regulate lymphoma progression. This has emerged as a research hotspot. This review summarizes the current knowledge on ferroptosis induction and resistance mechanisms, their roles and mechanistic details of ferroptosis in lymphoma suppression and immunity, and finally the treatment strategies for lymphoma by targeting ferroptosis.
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Affiliation(s)
- Qiao Zhou
- Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Ting Li
- Department of Rheumatology, Wenjiang District People’s Hospital, Chengdu, China
| | - Qin Qin
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaobo Huang
- Department of Critical Care Medicine, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yi Wang
- Department of Critical Care Medicine, Sichuan Academy of Medical Science and Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
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Fu T, Liu Y, Huang X, Guo Y, Shen J, Shen H. lncRNA SNHG1 regulates odontogenic differentiation of human dental pulp stem cells via miR-328-3p/Wnt/β-catenin pathway. Stem Cell Res Ther 2022; 13:311. [PMID: 35841022 PMCID: PMC9284872 DOI: 10.1186/s13287-022-02979-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 04/17/2022] [Indexed: 12/03/2022] Open
Abstract
Background Elucidating the mechanism of odontogenic differentiation of human dental pulp stem cells (hDPSCs) is the key to in-depth mastery and development of regenerative endodontic procedures (REPs). In odontogenic differentiation, lncRNAs have a regulatory role. The goal of this research is to determine the involvement of short nucleolar RNA host gene 1 (SNHG1) in hDPSCs’ odontogenic differentiation and the mechanism that underpins it. Methods hDPSCs were isolated from the dental pulp tissue of healthy immature permanent teeth. Follow-up experiments were performed when the third generation of primary cells were transfected. The proliferation ability was measured by CCK-8. The biological effects of SNHG1 and miR-328-3p were determined by real-time quantitative polymerase chain reaction (qRT-PCR), western blot (WB), alkaline phosphatase (ALP) staining and activity, alizarin red S staining (ARS) and quantification, and immunofluorescence staining. The binding of SNHG1 and miR-328-3p was confirmed using a dual-luciferase reporter assay. qRT-PCR and WB were used to determine whether the canonical Wnt/β-catenin pathway was activated. Results On the 0th, 3rd, and 7th days of odontogenic differentiation of hDPSCs, SNHG1 showed a gradual up-regulation trend. SNHG1 overexpression enhanced the mRNA and protein expression of dentin sialophosphoprotein (DSPP), dentine matrix protein 1 (DMP-1) and ALP. We found that SNHG1 could bind to miR-328-3p. miR-328-3p inhibited the odontogenic differentiation of hDPSCs. Therefore, miR-328-3p mimics rescued the effect of SNHG1 overexpression on promoting odontogenic differentiation. In addition, SNHG1 inhibited Wnt/β-catenin pathway via miR-328-3p in odontogenic differentiation of hDPSCs. Conclusion lncRNA SNHG1 inhibits Wnt/β-catenin pathway through miR-328-3p and then promotes the odontogenic differentiation of hDPSCs. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-02979-w.
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Affiliation(s)
- Tingting Fu
- Department of Pediatric and Preventive Dentistry, Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, China
| | - Yiran Liu
- Department of Pediatric and Preventive Dentistry, Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, China
| | - Xin Huang
- Department of Pediatric and Preventive Dentistry, Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, China
| | - Yan Guo
- Department of Pediatric and Preventive Dentistry, Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, China
| | - Jiaping Shen
- Department of Pediatric and Preventive Dentistry, Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, China.
| | - Hong Shen
- Department of Pediatric and Preventive Dentistry, Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, 210029, China.
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Oncogenic role and potential regulatory mechanism of topoisomerase IIα in a pan-cancer analysis. Sci Rep 2022; 12:11161. [PMID: 35778520 PMCID: PMC9249858 DOI: 10.1038/s41598-022-15205-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/20/2022] [Indexed: 11/08/2022] Open
Abstract
Topoisomerase IIα (TOP2A) plays an oncogenic role in multiple tumor types. However, no pan-cancer analysis about the function and the upstream molecular mechanism of TOP2A is available. For the first time, we analyzed potential oncogenic roles of TOP2A in 33 cancer types via The Cancer Genome Atlas (TCGA) database. Overexpression of TOP2A was existed in almost all cancer types, and related to poor prognosis and advanced pathological stages in most cases. Besides, the high frequency of TOP2A genetic alterations was observed in several cancer types, and related to prognosis in some cases. Moreover, we conduct upstream miRNAs and lncRNAs of TOP2A to establish ceRNA networks in kidney renal clear cell carcinoma (SNHG3-miR-139-5p), kidney renal papillary cell carcinoma (TMEM147-AS1/N4BP2L2-IT2/THUMPD3-AS1/ERICD/TTN-AS1/SH3BP5-AS1/THRB-IT1/SNHG3/NEAT1-miR-139-5p), liver hepatocellular carcinoma (SNHG3/THUMPD3-AS1/NUTM2B-AS1/NUTM2A-AS1-miR-139-5p and SNHG6/GSEC/SNHG1/SNHG14/LINC00265/MIR3142HG-miR-101-3p) and lung adenocarcinoma (TYMSOS/HELLPAR/SNHG1/GSEC/SNHG6-miR-101-3p). TOP2A expression was generally positively correlated with cancer associated fibroblasts, M0 and M1 macrophages in most cancer types. Furthermore, TOP2A was positively associated with expression of immune checkpoints (CD274, CTLA4, HAVCR2, LAG3, PDCD1 and TIGIT) in most cancer types. Our first TOP2A pan-cancer study contributes to understanding the prognostic roles, immunological roles and potential upstream molecular mechanism of TOP2A in different cancers.
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Cai J, Li C, Li S, Yi J, Wang J, Yao K, Gan X, Shen Y, Yang P, Jing D, Zhao Z. A Quartet Network Analysis Identifying Mechanically Responsive Long Noncoding RNAs in Bone Remodeling. Front Bioeng Biotechnol 2022; 10:780211. [PMID: 35356768 PMCID: PMC8959777 DOI: 10.3389/fbioe.2022.780211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/20/2022] [Indexed: 12/13/2022] Open
Abstract
Mechanical force, being so ubiquitous that it is often taken for granted and overlooked, is now gaining the spotlight for reams of evidence corroborating their crucial roles in the living body. The bone, particularly, experiences manifold extraneous force like strain and compression, as well as intrinsic cues like fluid shear stress and physical properties of the microenvironment. Though sparkled in diversified background, long noncoding RNAs (lncRNAs) concerning the mechanotransduction process that bone undergoes are not yet detailed in a systematic way. Our principal goal in this research is to highlight the potential lncRNA-focused mechanical signaling systems which may be adapted by bone-related cells for biophysical environment response. Based on credible lists of force-sensitive mRNAs and miRNAs, we constructed a force-responsive competing endogenous RNA network for lncRNA identification. To elucidate the underlying mechanism, we then illustrated the possible crosstalk between lncRNAs and mRNAs as well as transcriptional factors and mapped lncRNAs to known signaling pathways involved in bone remodeling and mechanotransduction. Last, we developed combinative analysis between predicted and established lncRNAs, constructing a pathway–lncRNA network which suggests interactive relationships and new roles of known factors such as H19. In conclusion, our work provided a systematic quartet network analysis, uncovered candidate force-related lncRNAs, and highlighted both the upstream and downstream processes that are possibly involved. A new mode of bioinformatic analysis integrating sequencing data, literature retrieval, and computational algorithm was also introduced. Hopefully, our work would provide a moment of clarity against the multiplicity and complexity of the lncRNA world confronting mechanical input.
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Affiliation(s)
- Jingyi Cai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chaoyuan Li
- Department of Oral Implantology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Shun Li
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
| | - Jianru Yi
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jun Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ke Yao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinyan Gan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Shen
- School of Basic Medical Sciences, Chengdu University, Chengdu, China
| | - Pu Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dian Jing
- Department of Orthodontics, China Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Dian Jing, ; Zhihe Zhao,
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Dian Jing, ; Zhihe Zhao,
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Yang K, Wang F, Li K, Peng G, Yang H, Xu H, Xiang Y, Sun H. N6-methyladenosine Modification-Related Long Non-Coding RNAs are Potential Biomarkers for Predicting the Prognosis of Patients With Osteosarcoma. Technol Cancer Res Treat 2022; 21:15330338221085354. [PMID: 35422168 PMCID: PMC9019337 DOI: 10.1177/15330338221085354] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: The role of N6-methyladenosine (m6A)-related long non-coding RNAs (lncRNAs) in osteosarcoma (OS) has not been fully studied yet. We aimed to identify m6A-related lncRNAs that could act as prognostic biomarkers for OS. Methods: Pearson correlation was performed to identify m6A-related lncRNAs. Univariate and multivariate Cox regression analyses were performed to construct the risk model and assess whether the risk score was an independent prognostic factor for patients with OS. Gene Set Enrichment Analysis (GSEA) was performed to analyze the functions of genes in high-risk and low-risk groups. StarBase and Cytoscape were used to construct a competing endogenous RNA (ceRNA) network based on m6A-related prognostic lncRNA signature. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed to analyze the function of genes involved in the ceRNA network. Results: We extracted 122 common lncRNAs from TCGA and Gene Expression Omnibus (GEO) databases. Pearson correlation results revealed 59 significant m6A-related lncRNAs in The Cancer Genome Atlas (TCGA) database, from which 2 were screened to construct a risk signature in TCGA dataset, which was then validated in the GEO dataset. A corresponding risk score was calculated and shown to be an independent prognostic factor for patients with OS. Enrichment analysis indicated that cell proliferation-related biological processes were more common in the high-risk group, while immune-related biological processes were more common in the low-risk group. Moreover, we established a nomogram that had a good ability to predict the overall survival of patients with OS. Additionally, a ceRNA network based on small nucleolar RNA host gene 7 (SNHG7) and small nucleolar RNA host gene 12 (SNHG12) was constructed, with genes that were enriched in hepatocellular carcinoma, gastric cancer, and non-small-cell lung cancer pathways. Conclusion: Our study revealed the prognostic role of m6A-related lncRNAs in OS and identified SNHG7 and SNHG12 as potential biomarkers for predicting the prognosis of patients with OS. These findings have enriched our understanding of the role of m6A modification in the dysregulation of lncRNAs in OS.
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Affiliation(s)
- Kun Yang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Fengyan Wang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China.,School of Medicine, Soochow University, Suzhou, China
| | - Ke Li
- 56663Department of Respiratory and Critical Care Medicine, Guizhou Provincial People's Hospital, Guiyang, China
| | - Guoxuan Peng
- School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China
| | - Hua Yang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hong Xu
- School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China
| | - Yang Xiang
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hong Sun
- 74720Department of Orthopaedics, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.,School of Clinical Medicine, 74628Guizhou Medical University, Guiyang, China
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12
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Abstract
Osteosarcoma is the most common primary bone malignancy in adolescents. Its high propensity to metastasize is the leading cause for treatment failure and poor prognosis. Although the research of osteosarcoma has greatly expanded in the past decades, the knowledge and new therapy strategies targeting metastatic progression remain sparse. The prognosis of patients with metastasis is still unsatisfactory. There is resonating urgency for a thorough and deeper understanding of molecular mechanisms underlying osteosarcoma to develop innovative therapies targeting metastasis. Toward the goal of elaborating the characteristics and biological behavior of metastatic osteosarcoma, it is essential to combine the diverse investigations that are performed at molecular, cellular, and animal levels from basic research to clinical translation spanning chemical, physical sciences, and biology. This review focuses on the metastatic process, regulatory networks involving key molecules and signaling pathways, the role of microenvironment, osteoclast, angiogenesis, metabolism, immunity, and noncoding RNAs in osteosarcoma metastasis. The aim of this review is to provide an overview of current research advances, with the hope to discovery druggable targets and promising therapy strategies for osteosarcoma metastasis and thus to overcome this clinical impasse.
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Affiliation(s)
- Gaohong Sheng
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Gao
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong Yang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Wu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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13
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Zhang L, Tang X, Wan J, Zhang X, Zheng T, Lin Z, Liu T. Construction of a Novel Signature and Prediction of the Immune Landscape in Soft Tissue Sarcomas Based on N6-Methylandenosine-Related LncRNAs. Front Mol Biosci 2021; 8:715764. [PMID: 34733885 PMCID: PMC8559337 DOI: 10.3389/fmolb.2021.715764] [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: 05/27/2021] [Accepted: 09/28/2021] [Indexed: 12/21/2022] Open
Abstract
Background: N6-methylandenosine-related long non-coding RNAs (m6A-related lncRNAs) are critically involved in cancer development. However, the roles and clinical significance of m6A-related lncRNAs in soft tissue sarcomas (STS) are inconclusive, thereby warranting further investigations. Methods: Transcriptome profiling data were extracted from The Cancer Genome Atlas (TCGA) database and Genotype-Tissue Expression (GTEx). Consensus clustering was employed to divide patients into clusters and Kaplan–Meier analysis was used to explore the prognostic differences between the subgroups. Gene set enrichment analysis (GSEA) was conducted to identify the biological processes and signaling pathways associated with m6A-Related lncRNAs. Finally, patients were randomly divided into training and validation cohorts, and least absolute shrinkage and selection operator (LASSO) Cox regression was conducted to establish the m6A-related lncRNA-based risk signature. Results: A total of 259 STS patients from TCGA-SARC dataset were enrolled in our study. Thirteen m6A-Related lncRNAs were identified to be closely related to the prognosis of STS patients. Patients were divided into two clusters, and patients in cluster 2 had a better overall survival (OS) than those in cluster 1. Patients in different clusters also showed differences in immune scores, infiltrating immune cells, and immune checkpoint expression. Patients were further classified into high-risk and low-risk subgroups according to risk scores, and high-risk patients were found to have a worse prognosis. The receiver operating characteristic (ROC) curve indicated that the risk signature displayed excellent performance at predicting the prognosis of patients with STS. Further, the risk signature was remarkably connected with the immune microenvironment and chemosensitivity in STS. Conclusion: Our study demonstrated that m6A-related lncRNAs were significantly associated with prognosis and tumor immune microenvironment and could function as independent prognosis-specific predictors in STS, thereby providing novel insights into the roles of m6A-related lncRNAs in STS.
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Affiliation(s)
- Li Zhang
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China.,Department of Endocrinology, The Fifth Central Hospital of Tianjin, Tianjin, China
| | - Xianzhe Tang
- Department of Orthopedics, Chenzhou No. 1 People's Hospital, Chenzhou, China
| | - Jia Wan
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xianghong Zhang
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Tao Zheng
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhengjun Lin
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China.,Xiangya School of Medicine, Central South University, Changsha, China
| | - Tang Liu
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
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14
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He J, Xuan X, Jiang M, Li J, Li N, Nie T. Long non-coding RNA SNHG1 relieves microglia activation by downregulating miR-329-3p expression in an in vitro model of cerebral infarction. Exp Ther Med 2021; 22:1148. [PMID: 34504593 PMCID: PMC8393422 DOI: 10.3892/etm.2021.10581] [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: 02/04/2021] [Accepted: 07/07/2021] [Indexed: 12/13/2022] Open
Abstract
Following cerebral infarction, activated microglia cells can release a large amount of inflammatory cytokines, thereby exacerbating neuronal damage. It has been demonstrated that the long non-coding RNA small nucleolar RNA host gene 1 (SNHG1) exerts a protective effect against cerebral infarction. However, its specific role in cerebral infarction and underlying mechanism have yet to be fully elucidated. The present study aimed to investigate the effects of the SNHG1 and microRNA (miR)-329-3p in cerebral infarction and to determine the underlying molecular mechanisms. An in vitro oxygen-glucose deprivation (OGD) model was established using the BV-2 microglial cell line. The mRNA expression levels of SNHG1 and miR-329-3p were analyzed using reverse transcription-quantitative PCR and the protein expression levels of cleaved caspase-3 and caspase-3 were detected using western blotting. The binding relationship between SNHG1 and miR-329-3p was predicted using starBase and verified using a dual luciferase reporter assay. The release of TNF-α and nitric oxide, as well as caspase-3 activity, were detected using appropriate commercial kits. Flow cytometry analysis was performed to measure cell apoptosis. The results of the present study revealed that the expression levels of SNHG1 were upregulated in the OGD-induced BV-2 cell model. miR-329-3p was discovered to directly target SNHG1, and its mRNA expression levels were downregulated in the OGD-induced BV-2 cell model. The SNHG1-plasmid downregulated miR-329-3p expression levels, while this effect was reversed by transfection with the miR-329-3p mimic. The overexpression of SNHG1 or knockdown of miR-329-3p inhibited OGD-induced BV-2 cell activation. In conclusion, the results of the present study suggested that SNHG1 may reduce microglial cell activity by regulating the expression of miR-329-3p, indicating its potential protective role in cerebral infarction.
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Affiliation(s)
- Jianli He
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Xianjun Xuan
- The Fourth Clinical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310000, P.R. China
| | - Minhai Jiang
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Jiangtao Li
- Department of General Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Ning Li
- Department of Urology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Tian Nie
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
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15
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Luo H, Zhang Y, Qin G, Jiang B, Miao L. LncRNA MCM3AP-AS1 sponges miR-148a to enhance cell invasion and migration in small cell lung cancer. BMC Cancer 2021; 21:820. [PMID: 34271873 PMCID: PMC8283830 DOI: 10.1186/s12885-021-08365-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 05/17/2021] [Indexed: 01/14/2023] Open
Abstract
Background MCM3AP-AS1 is a recently characterized lncRNA playing an oncogenic role in several cancers. However, its role in lung cancer remains unknown. Here, we aimed to explore the functions of MCM3AP-AS1 in small cell lung cancer (SCLC) and the possible underlying mechanisms. Methods MCM3AP-AS1 and ROCK1 levels in SCLC patients were analyzed by qPCR. RNA pull-down and luciferase assays were performed to analyze the interaction between MCM3AP-AS1 and miR-148a. ROCK1 mRNA and protein levels were detected by qPCR and Western blot, respectively. Cell invasion and migration were analyzed by Transwell assays. Results MCM3AP-AS1 was upregulated in patients with SCLC, and a high MCM3AP-AS1 level was accompanied by a low survival rate. The binding of MCM3AP-AS1 to miR-148a predicted by bioinformatics analysis was verified by RNA pull-down and luciferase assays. However, MCM3AP-AS1 and miR-148a did not affect each other’s expression. ROCK1 was upregulated in SCLC tissues and positively correlated with MCM3AP-AS1. In SCLC cells, MCM3AP-AS1 overexpression increased ROCK1 and promoted cancer cell invasion and migration, while miR-148a overexpression showed the opposite effects and attenuated the effects of MCM3AP-AS1 overexpression on ROCK1 expression and cell behaviors. Conclusions MCM3AP-AS1 sponges miR-148a, thereby increasing SCLC cell invasion and migration via upregulating ROCK1 expression. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08365-8.
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Affiliation(s)
- Hua Luo
- Department of Respiratory and Critical Care Medicine, Yongchuan Hospital of Chongqing Medical University, No.439 Xuanhua Road, Yongchuan District, Chongqing, 402160, P. R. China
| | - Yukun Zhang
- Department of Respiratory and Critical Care Medicine, Yongchuan Hospital of Chongqing Medical University, No.439 Xuanhua Road, Yongchuan District, Chongqing, 402160, P. R. China.
| | - Guangmei Qin
- Department of Respiratory and Critical Care Medicine, Yongchuan Hospital of Chongqing Medical University, No.439 Xuanhua Road, Yongchuan District, Chongqing, 402160, P. R. China
| | - Bing Jiang
- Department of Respiratory and Critical Care Medicine, Yongchuan Hospital of Chongqing Medical University, No.439 Xuanhua Road, Yongchuan District, Chongqing, 402160, P. R. China
| | - Lili Miao
- Department of Respiratory and Critical Care Medicine, Yongchuan Hospital of Chongqing Medical University, No.439 Xuanhua Road, Yongchuan District, Chongqing, 402160, P. R. China
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16
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Abstract
Osteoporosis is a common bone disease characterized by low bone mass and deterioration of bone microstructure, which predisposes to higher risks of bone fragility and bone fracture. Long non-coding RNAs (lncRNAs) are a class of RNAs with a length of > 200 nucleotides without protein-coding function, which control the expression of genes and affect multiple biological processes. Accumulating evidence suggests that lncRNAs are widely involved in the molecular mechanisms of osteoporosis. This review aims to summarize the function and underlying mechanism of lncRNAs involved in the development of osteoporosis, and how it contributes to osteoblast and osteoclast function. This knowledge will shed new light on the modulation and potential treatment of osteoporosis.
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Affiliation(s)
- Yinxi He
- Department of Orthopaedic Trauma, The Third Hospital of Shijiazhuang, Shijiazhuang, 050000, Hebei, People's Republic of China
| | - Yanxia Chen
- Department of Endocrinology, The Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, Hebei, People's Republic of China.
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17
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Li Z, Wang X, Liang S. Long non-coding RNA small nucleolar RNA host gene 1 knockdown suppresses the proliferation, migration and invasion of osteosarcoma cells by regulating microRNA-424-5p/FGF2 in vitro. Exp Ther Med 2021; 21:325. [PMID: 33732298 DOI: 10.3892/etm.2021.9756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 01/08/2021] [Indexed: 12/27/2022] Open
Abstract
The aim of the present study was to clarify the effect of long non-coding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) on the proliferation, migration and invasion of osteosarcoma (OS) cells and to explore the potential underlying mechanisms. The expression levels of SNHG1, microRNA (miR)-424-5p and fibroblast growth factor 2 (FGF2) in OS tissues and cells were detected using reverse transcription-quantitative polymerase chain reaction. OS cell proliferation, migration and invasion were analysed by MTT, wound healing and Transwell invasion assays, respectively. The targeting relationships between SNHG1 and miR-424-5p, as well as between miR-424-5p and FGF2, were confirmed using RNA-binding protein immunoprecipitation and/or dual-luciferase reporter gene assays. The results demonstrated that the expression levels of SNHG1 and FGF2 were upregulated, whereas the expression of miR-424-5p was downregulated in OS tissues and cells. The silencing of SNHG1 significantly inhibited the proliferation, migration and invasion of OS cells. Additionally, FGF2 was shown to be a target of miR-424-5p, which in turn, was a target of SNHG1. miR-424-5p silencing and FGF2 overexpression both reversed the suppressive effects of SNHG1 knockdown on the proliferation, migration and invasion of OS cells. Thus, the silencing of SNHG1 may inhibit the proliferation, migration and invasion of OS cells by regulating the miR-424-5p/FGF2 axis.
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Affiliation(s)
- Zhuokai Li
- Department of Orthopaedics, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, P.R. China
| | - Xiaohe Wang
- Department of Orthopaedics, Jinan Zhangqiu District Hospital of TCM, Jinan, Shandong 250200, P.R. China
| | - Shuofu Liang
- Department of Orthopaedics, Zibo Zhoucun People's Hospital, Zibo, Shandong 255300, P.R. China
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18
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Wang L, Zhou J, Zhang Y, Hu T, Sun Y. Long Non-Coding RNA HCG11 Aggravates Osteosarcoma Carcinogenesis via Regulating the microRNA-579/MMP13 Axis. Int J Gen Med 2020; 13:1685-1695. [PMID: 33408506 PMCID: PMC7781107 DOI: 10.2147/ijgm.s274641] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/25/2020] [Indexed: 12/21/2022] Open
Abstract
Background Previous studies have suggested that long non-coding RNAs (lncRNAs) were involved in tumorigenesis of various human carcinomas, including osteosarcoma (OS). However, the expression and specific role of lncRNA HLA complex group 11 (HCG11) in OS remain unknown. The current study aimed at revealing the role of lncRNA HCG11 and its related mechanism in OS. Methods lncRNA HCG11 expression was verified with RT-qPCR followed by sub-localization determination. LncRNA-microRNA (miRNA) and miRNA–mRNA interactions were predicted by online bioinformatics websites. Validation was performed using dual-luciferase reporter gene assays, and gain- and loss-of-function experiments. The effects of lncRNA HCG11, miR-579 and matrix metalloproteinase 13 (MMP13) on the proliferation, migration and invasion, epithelial-mesenchymal transition (EMT) of OS cells were detected using cell counting kit-8 (CCK-8), Transwell assays and Western blot analysis. Results LncRNA HCG11 overexpression was observed in OS tissues and cell lines. Downregulation of lncRNA HCG11/MMP13 or overexpression of miR-579 blocked the progression of OS cells. LncRNA HCG11, which is located in the cytoplasm, promoted MMP13 expression through sponging miR-579. Conclusion LncRNA HCG11 might be beneficial for OS aggravation via sponging miR-579 and facilitating MMP13 expression, which represents a candidate biomarker and target for OS therapy.
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Affiliation(s)
- Lili Wang
- Clinical Laboratory Department, Ningbo Sixth Hospital, Ningbo 315000, Zhejiang, People's Republic of China
| | - Jingzhen Zhou
- Clinical Laboratory Department, Ningbo Second Hospital, Ningbo 315000, Zhejiang, People's Republic of China
| | - Yong Zhang
- Department of Bone Oncology, Ningbo Sixth Hospital, Ningbo 315000, Zhejiang, People's Republic of China
| | - Tao Hu
- Department of Orthopaedics, The First People's Hospital of Yongkang, Yongkang 321300, Zhejiang, People's Republic of China
| | - Yongning Sun
- Clinical Laboratory Department, Ningbo Sixth Hospital, Ningbo 315000, Zhejiang, People's Republic of China
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19
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Wang L. ELF1-activated FOXD3-AS1 promotes the migration, invasion and EMT of osteosarcoma cells via sponging miR-296-5p to upregulate ZCCHC3. J Bone Oncol 2020; 26:100335. [PMID: 33204608 PMCID: PMC7653078 DOI: 10.1016/j.jbo.2020.100335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 12/14/2022] Open
Abstract
Osteosarcoma (OS) is a malignant carcinoma often occurring in adolescents. The critical function of long non-coding RNAs (lncRNAs) in cancer arouses increasing attention. Nevertheless, the specific function of FOXD3 Antisense RNA 1 (FOXD3-AS1) in OS has not been understood yet. In this research, FOXD3-AS1 showed strengthened level in OS specimens and cell lines, and its deficiency restrained cell migration, invasion and epithelial-to-mesenchymal transition (EMT) in OS. Then, we confirmed the interaction of FOXD3-AS1 with microRNA-296-5p (miR-296-5p) and that miR-296-5p overexpression blocked OS cell migration, invasion and EMT. Besides, miR-296-5p targeted zinc finger CCHC-type containing 3 (ZCCHC3), and FOXD3-AS1 released ZCCHC3 via sequestering miR-296-5p. Moreover, rescue assays delineated that ZCCHC3 upregulation neutralized the inhibitory effect of FOXD3-AS1 depletion on in vitro behaviors and in vivo tumorigenesis in OS. In addition, E74 like ETS transcription factor 1 (ELF1) stimulated FOXD3-AS1 transcription, and ELF1 silence-suppressed malignant phenotypes of OS cells were offset by FOXD3-AS1 upregulation. Overall, present work elucidated that ELF1-activated FOXD3-AS1 aggravated cell migration, invasion and EMT in OS via absorbing miR-296-5p to augment ZCCHC3 expression, which might provide potential guidance for researchers to find effective targets for OS treatment.
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Affiliation(s)
- Lei Wang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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20
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Kushlinskii NE, Fridman MV, Braga EA. Long Non-Coding RNAs as Competitive Endogenous RNAs in Osteosarcoma. Mol Biol 2020. [DOI: 10.1134/s0026893320050052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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21
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Du Q, Chen J. SNHG1 promotes proliferation, migration and invasion of bladder cancer cells via the PI3K/AKT signaling pathway. Exp Ther Med 2020; 20:110. [PMID: 32989389 PMCID: PMC7517367 DOI: 10.3892/etm.2020.9238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 05/15/2020] [Indexed: 12/25/2022] Open
Abstract
Long non-coding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) has been previously reported to mediate a number of functions during the progression of cancer. However, its involvement in bladder cancer remain unclear. The aim of the present study was to investigate the expression of SNHG1 in bladder cancer and to identify its potential mechanisms. SNHG1 expression was firstly detected in cancer tissues and cells. The effects of SNHG1 on the malignant phenotypes were then investigated. Furthermore, the influence of SNHG1 on the PI3K/AKT signaling pathway was examined. It was demonstrated that SNHG1 expression was significantly upregulated in bladder cancer tissues and cells. Moreover, the loss-of-function experimental results suggested that knockdown of SNHG1 inhibited bladder cancer cell proliferation, migration and invasion, but increased apoptosis; however, SNHG1 overexpression promoted these processes. Mechanistically, rescue assays identified that SNHG1 activated the PI3K/AKT signaling pathway. Therefore, it was speculated that SNHG1 functioned as a carcinogenic lncRNA in bladder cancer via activation of PI3K/AKT.
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Affiliation(s)
- Quan Du
- Department of Urology, Xianyang Central Hospital, Xianyang, Shaanxi 712000, P.R. China
| | - Juan Chen
- Department of Urology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, P.R. China
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22
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Zhang Y, Guo H, Ma L, Chen X, Chen G. Long Noncoding RNA LINC00839 Promotes the Malignant Progression of Osteosarcoma by Competitively Binding to MicroRNA-454-3p and Consequently Increasing c-Met Expression. Cancer Manag Res 2020; 12:8975-8987. [PMID: 33061593 PMCID: PMC7522415 DOI: 10.2147/cmar.s269774] [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: 06/28/2020] [Accepted: 08/15/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose This study was conducted to determine the expression and prognostic relevance of long intergenic non-protein coding RNA 839 (LINC00839) in osteosarcoma (OS) and to explore the detailed roles of LINC00839 in regulating OS cell activities and the mechanisms responsible for its cancer-promoting activity in OS. Methods The expression of LINC00839 in OS tissues and cell lines was determined by quantitative reverse transcription–polymerase chain reaction. After LINC00839 knockdown, cell counting kit-8 assay, flow cytometric analysis, transwell migration and invasion assay, and in vivo tumor xenograft assay were used to detect its effects on cellular processes in OS. Bioinformatics analyses were conducted to predict the putative miRNAs that target LINC00839. RNA immunoprecipitation assay, luciferase reporter assay, Western blotting analysis, and rescue assays were conducted to establish a relationship among LINC00839, microRNA-454-3p (miR-454-3p), and cellular mesenchymal to epithelial transition factor (c-Met) in OS. Results LINC00839 was upregulated in OS tissues and cell lines. OS patients characterized with high LINC00839 expression exhibited shorter overall survival than patients with low LINC00839 expression. LINC00839 knockdown caused a significant reduction in OS cell proliferation, migration, and invasion in vitro. Furthermore, LINC00839 depletion inhibited OS tumor growth in vivo and induced apoptosis. Mechanistically, LINC00839 functions as a competitive endogenous RNA in OS by sponging miR-454-3p. c-Met was confirmed as a direct target gene for miR-454-3p in OS cells and was positively regulated by LINC00839 by competitively binding to miR-454-3p. Conclusion LINC00839 promoted the oncogenicity of OS by targeting the miR-454-3p/c-Met axis. The LINC00839/miR-454-3p/c-Met network may represent a potential target for OS therapy.
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Affiliation(s)
- Yang Zhang
- Department of Orthopedics, Shenzhen University General Hospital, Shenzhen 518055, People's Republic of China
| | - Hai Guo
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, 830000, People's Republic of China
| | - Li Ma
- Department of Emergency, General Hospital of Xinjiang Military Command of Chinese People's Liberation Army, Urumqi, Xinjiang, 830000, People's Republic of China
| | - Xiaoyong Chen
- Department of Orthopedics, Shenzhen University General Hospital, Shenzhen 518055, People's Republic of China
| | - Guangdong Chen
- Department of Orthopedics, Cangzhou Center Hospital, Cangzhou, Hebei 061014, People's Republic of China
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Xiang J, Fu HQ, Xu Z, Fan WJ, Liu F, Chen B. lncRNA SNHG1 attenuates osteogenic differentiation via the miR‑101/DKK1 axis in bone marrow mesenchymal stem cells. Mol Med Rep 2020; 22:3715-3722. [PMID: 32901867 PMCID: PMC7533455 DOI: 10.3892/mmr.2020.11489] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 07/13/2020] [Indexed: 12/17/2022] Open
Abstract
The imbalance induced by inhibition of bone mesenchymal stem cell (BMSC) osteogenic differentiation results in osteoporosis (OP); however, the underlying regulatory mechanism is not completely understood. Long non-coding RNAs (lncRNAs) serve crucial roles in osteogenic differentiation; therefore, investigating their regulatory role in the process of osteogenic differentiation may identify a promising therapeutic target for OP. The expression of small nucleolar RNA host gene 1 (SNHG1), Dickkopf 1 (DKK1), microRNA (miR)-101, RUNX family transcription factor 2 (RUNX2), osteopontin (OPN) and osteocalin (OCN) were detected via reverse transcription-quantitative PCR. The protein expression levels of DKK1, β-catenin, RUNX2, OPN, OCN, osterix and collagen type I α1 chain were analyzed by performing western blotting. The osteoblastic phenotype was assessed by conducting alkaline phosphatase activity detection and Alizarin Red staining. The interaction between SNHG1 and miR-101 was validated by bioinformatics and luciferase assays. The regulatory role of SNHG1 in BMSC osteogenic differentiation was assessed. SNHG1 expression was downregulated in a time-dependent manner during the process of osteogenic differentiation. SNHG1 overexpression inhibited osteogenic differentiation compared with the pcDNA group. The results indicated that SNHG1 and DKK1 directly interacted with miR-101. Moreover, SNHG1 regulated the Wnt/β-catenin signaling pathway to inhibit osteogenic differentiation via the miR-101/DKK1 axis. The present study indicated that lncRNA SNHG1 could attenuate BMSC osteogenic differentiation via the miR-101/DKK1 axis as a competitive endogenous RNA. Therefore, the present study furthered the current understanding of the potential mechanism underlying lncRNAs in in osteogenic differentiation.
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Affiliation(s)
- Jie Xiang
- Department of Orthopedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Hai-Qing Fu
- Department of Orthopedics and Traumatology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zhun Xu
- Department of Orthopedics and Traumatology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Wei-Jie Fan
- Department of Orthopedics and Traumatology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Fei Liu
- Department of Orthopedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Bin Chen
- Department of Orthopedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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24
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Hao H, Wang L, Liu Q, Wu D, Xing H. LncRNA small nucleolar RNA host gene 8 promotes cell growth and migration of osteosarcoma in vitro and in vivo by functioning as a ceRNA of microRNA-876-5p. Am J Transl Res 2020; 12:3476-3488. [PMID: 32774713 PMCID: PMC7407679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
Osteosarcoma (OS) is the most leading primary malignant tumor of the bone in adolescents and young adults worldwide. Increasing data have suggested that long non-coding RNA (lncRNA) small nucleolar RNA host gene 8 (SNHG8) plays a key role in the progression of various types of human malignancy. However, the roles and potential mechanisms of SNHG8 in OS remain unclear. In this study, we found that SNHG8 levels were obviously upregulated in OS tissues and cell lines. High expression of SNHG8 was significantly correlated with increased tumor size and advanced Enneking stage, and predicted a poor prognosis of OS patients. Functional assays revealed that SNHG8 knockdown inhibited OS cell growth and migration in vitro, and restrained tumor growth of OS in nude mice in vivo. Mechanistically, SNHG8 functioned as a competing endogenous RNA (ceRNA) of miR-876-5p in OS cells. Notably, knockdown of miR-876-5p reversed the inhibitory effects of SNHG8 inhibition on OS cell proliferation and migration. In conclusion, our study suggested that SNHG8 stimulates cell growth and migration of OS cells by functioning as a ceRNA of miR-876-5p, indicating SNHG8 may be served as a novel prognostic biomarker and therapeutic target for the treatment of OS.
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Affiliation(s)
- Haihu Hao
- Department of Orthopedics, Shanxi Academy of Medical Sciences & Shanxi Bethune HospitalTaiyuan 030032, China
| | - Li Wang
- Department of Pathology, Shanxi Medical UniversityTaiyuan 030001, China
| | - Qiang Liu
- Department of Orthopedics, Shanxi Academy of Medical Sciences & Shanxi Bethune HospitalTaiyuan 030032, China
| | - Dou Wu
- Department of Orthopedics, Shanxi Academy of Medical Sciences & Shanxi Bethune HospitalTaiyuan 030032, China
| | - Hao Xing
- Department of Orthopedics, Shanxi Academy of Medical Sciences & Shanxi Bethune HospitalTaiyuan 030032, China
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25
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Zhang Y, Pu Y, Wang J, Li Z, Wang H. Research progress regarding the role of long non-coding RNAs in osteosarcoma. Oncol Lett 2020; 20:2606-2612. [PMID: 32782578 PMCID: PMC7400499 DOI: 10.3892/ol.2020.11807] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/29/2020] [Indexed: 12/16/2022] Open
Abstract
Osteosarcoma is a malignant tumor that occurs in children and adolescents. Although treatments for osteosarcoma have improved, the likelihood of survival remains low for most patients with metastasis and recurrence. Elucidating the mechanism underlying the development of osteosarcoma and chemotherapy resistance will be important to improve diagnosis and treatment. Long non-coding RNAs (lncRNAs), which are longer than 200 nucleotides in length and do not encode for proteins, have been shown to play a regulatory role in the occurrence and development of osteosarcoma, and are expected to serve as biomarkers and molecular targets. This review discusses the progress in the study of the role of lncRNAs in osteosarcoma, and highlights the recent developments in this field.
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Affiliation(s)
- Yanli Zhang
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Yanchuan Pu
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Jin Wang
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Zicai Li
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
| | - Hulin Wang
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, Gansu 733000, P.R. China
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26
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Zhou FC, Zhang YH, Liu HT, Song J, Shao J. LncRNA LINC00588 Suppresses the Progression of Osteosarcoma by Acting as a ceRNA for miRNA-1972. Front Pharmacol 2020; 11:255. [PMID: 32265694 PMCID: PMC7107012 DOI: 10.3389/fphar.2020.00255] [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: 10/01/2019] [Accepted: 02/24/2020] [Indexed: 12/11/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are being found to play an increasingly important role in the development of tumors. However, their biological functions and the underlying mechanisms remain unclear. Using information from GEO Datasets, we found that the lncRNA LINC00588 was downregulated in osteosarcoma (OS) in bone but was upregulated in the metastatic tumor present in the lung. We assessed the function of LINC00588 using both overexpression and knock-out studies. We performed colony formation assay, CCK-8 assay, flow cytometry, wound healing assay, transwell assay, and RT-qPCR assay and used a xenograft model to investigate the influence of LINC00588 on cell proliferation, viability, cell apoptosis and cycle, migration, invasion, endothelial cell function, EMT (epithelial to mesenchymal transition), and tumor growth, respectively. Overexpression of LINC00588 appeared to inhibit cell proliferation, viability, migration, invasion, endothelial cell function, EMT, and tumor growth but not apoptosis, while we got the opposite result when we knocked down LINC00588. Next, we predicted that LINC00588 bound to miRNA-1972 and significantly downregulated its expression, which we then verified through a luciferase reporter assay. Subsequently, we knocked down miR1972 and performed CCK-8 and transwell assays to demonstrate that downregulation of miRNA-1972 could substantially inhibit the viability and invasion of osteosarcoma cells. The expression of TP53 was downregulated at the protein level but not at the mRNA level after the overexpression of miRNA-1972. Taken together, our findings indicate that LINC00588 plays a role in OS development by downregulating the expression of miRNA-1972, which can, in turn, inhibit the expression of TP53. Hence, we believe that the LINC00588/miRNA-1072/TP53 axis could potentially serve as a therapeutic target or diagnostic biomarker for osteosarcoma.
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Affiliation(s)
- Fu-Chao Zhou
- Spine Center, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yue-Hui Zhang
- Spine Center, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hai-Tao Liu
- Spine Center, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jia Song
- Spine Center, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiang Shao
- Spine Center, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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27
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Bao J, Song Z, Song C, Wang Y, Li W, Mai W, Shi Q, Yu H, Ni L, Liu Y, Lu X, He C, Chen L, Qu G. Identification of Biomarkers for Osteosarcoma Based on Integration Strategy. Med Sci Monit 2020; 26:e920803. [PMID: 32173717 PMCID: PMC7101204 DOI: 10.12659/msm.920803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background Osteosarcoma (OS) is the most common primary malignant tumor of bone. The identification of novel biomarkers is necessary for the diagnosis and treatment of osteosarcoma. Material/Methods We obtained 11 paired fresh-frozen OS samples and normal controls from patients between September 2015 and February 2017. We used an integration strategy that analyzes next-generation sequencing data by bioinformatics methods based on the pathogenesis of osteosarcoma. Results One susceptibility lncRNA and 7 susceptibility genes regulated by the lncRNA for osteosarcoma were effectively identified, and real-time PCR and clinical index ALP data were used to test their effectiveness. Conclusions The results showed that the expression levels of the 7 genes were highly consistent in the training and test sample sets, especially between the expression value of the gene ALPL and the plasma detection value of its encoded protein ALP. In particular, both the expression of gene ALPL and the plasma detection values of protein ALP encoded by gene ALPL showed a high degree of consistency among different data types. The identified lncRNA and genes effectively classified the samples proved so that they could be used as potential biomarkers of osteosarcoma. Our strategy may also be helpful for the identification of biomarkers for other diseases.
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Affiliation(s)
- Junjie Bao
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Zhaona Song
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Chunyu Song
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Yahui Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Wan Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Wei Mai
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Qingyu Shi
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Hongwei Yu
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Linying Ni
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Yishu Liu
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Xiaolin Lu
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Chuan He
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
| | - Lina Chen
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, China (mainland)
| | - Guofan Qu
- Department of Orthopedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China (mainland)
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28
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Li HM, Yu YK, Liu Q, Wei XF, Zhang J, Zhang RX, Sun HB, Wang ZF, Xing WQ, Li Y. LncRNA SNHG1 Regulates the Progression of Esophageal Squamous Cell Cancer by the miR-204/HOXC8 Axis. Onco Targets Ther 2020; 13:757-767. [PMID: 32158227 PMCID: PMC6986417 DOI: 10.2147/ott.s224550] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 12/24/2019] [Indexed: 12/14/2022] Open
Abstract
Objective Long noncoding RNA small nucleolar RNA host gene 1 (SNHG1) has been reported to be aberrantly expressed and plays an important role in human cancers, including esophageal squamous cell cancer. However, the regulatory mechanism underlying SNHG1 in the progression of esophageal squamous cell cancer is poorly defined. Materials and Methods Fifty-three esophageal squamous cell cancer patients were recruited and overall survival was analyzed. EC9706 and KYSE150 cells were cultured for study in vitro. The expression levels of SNHG1, microRNA (miR)-204 and homeobox c8 (HOXC8) were detected by quantitative real-time polymerase chain reaction and Western blot. Cell cycle distribution, apoptosis, migration and invasion were determined by flow cytometry and transwell assays, respectively. The target interaction among SNHG1, miR-204 and HOXC8 was validated by luciferase reporter assay and RNA immunoprecipitation. Xenograft model was established to investigate the role of SNHG1 in vivo. Results High expression of SNHG1 was exhibited in esophageal squamous cell cancer and indicated poor outcomes of patients. SNHG1 silence led to cell cycle arrest at G0-G1 phase, inhibition of migration and invasion and increase of apoptosis. miR-204 was validated to sponge by SNHG1 and target HOXC8 in esophageal squamous cell cancer cells. miR-204 knockdown or HOXC8 restoration reversed the inhibitive role of SNHG1 silence in the progression of esophageal squamous cell cancer cells. Furthermore, inhibiting SNHG1 decreased xenograft tumor growth by regulating miR-204 and HOXC8. Conclusion SNHG1 knockdown suppresses migration and invasion but induces apoptosis of esophageal squamous cell cancer cells by increasing miR-204 and decreasing HOXC8.
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Affiliation(s)
- Hao Miao Li
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yong Kui Yu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Qi Liu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Xiu Feng Wei
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Jun Zhang
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Rui Xiang Zhang
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Hai Bo Sun
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Zong Fei Wang
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Wen Qun Xing
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yin Li
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.,Department of Thoracic Surgery, The Cancer Hospital Chinese Academy of Medical Sciences, Beijing, People's Republic of China
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29
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de Azevedo JWV, de Medeiros Fernandes TAA, Fernandes JV, de Azevedo JCV, Lanza DCF, Bezerra CM, Andrade VS, de Araújo JMG, Fernandes JV. Biology and pathogenesis of human osteosarcoma. Oncol Lett 2019; 19:1099-1116. [PMID: 31966039 PMCID: PMC6955653 DOI: 10.3892/ol.2019.11229] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 09/10/2019] [Indexed: 12/26/2022] Open
Abstract
Osteosarcoma (OS) is a bone tumor of mesenchymal origin, most frequently occurring during the rapid growth phase of long bones, and usually located in the epiphyseal growth plates of the femur or the tibia. Its most common feature is genome disorganization, aneuploidy with chromosomal alterations, deregulation of tumor suppressor genes and of the cell cycle, and an absence of DNA repair. This suggests the involvement of surveillance failures, DNA repair or apoptosis control during osteogenesis, allowing the survival of cells which have undergone alterations during differentiation. Epigenetic events, including DNA methylation, histone modifications, nucleosome remodeling and expression of non-coding RNAs have been identified as possible risk factors for the tumor. It has been reported that p53 target genes or those genes that have their activity modulated by p53, in addition to other tumor suppressor genes, are silenced in OS-derived cell lines by hypermethylation of their promoters. In osteogenesis, osteoblasts are formed from pluripotent mesenchymal cells, with potential for self-renewal, proliferation and differentiation into various cell types. This involves complex signaling pathways and multiple factors. Any disturbance in this process can cause deregulation of the differentiation and proliferation of these cells, leading to the malignant phenotype. Therefore, the origin of OS seems to be multifactorial, involving the deregulation of differentiation of mesenchymal cells and tumor suppressor genes, activation of oncogenes, epigenetic events and the production of cytokines.
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Affiliation(s)
| | | | | | | | | | - Christiane Medeiros Bezerra
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, 59072-970 Natal, RN, Brazil
| | - Vânia Sousa Andrade
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, 59072-970 Natal, RN, Brazil
| | | | - José Veríssimo Fernandes
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, 59072-970 Natal, RN, Brazil
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Tian M, Gong W, Guo J. Long non-coding RNA SNHG1 indicates poor prognosis and facilitates disease progression in acute myeloid leukemia. Biol Open 2019; 8:bio046417. [PMID: 31615767 PMCID: PMC6826290 DOI: 10.1242/bio.046417] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/26/2019] [Indexed: 01/11/2023] Open
Abstract
The role of long non-coding RNAs (lncRNAs) in acute myeloid leukemia (AML) is becoming increasingly questioned. Previous studies have reported that the lncRNA small nucleolar RNA host gene 1 (SNHG1) is involved in multiple human malignant tumors, while its expression and role in AML is still unexplored. Here, we show that SNHG1 is highly expressed in AML specimens from non-M3 patients, as well as AML cell lines. Meanwhile, upregulation of SNHG1 is correlated with poor prognosis. Notably, SNHG1 facilitates the proliferation and inhibits the apoptosis of AML cells in vitro Consistent with these findings, knockdown of SNHG1 significantly inhibits AML progression in an immunodeficient mouse model. Mechanistically, we found that an anti-tumor microRNA-101 (miR-101) is upregulated and its target genes are downregulated in AML cells after SNHG1 knockdown. Further investigations display that SNHG1 can serve as a competing endogenous RNA to inhibit miR-101. In conclusion, our data indicate that SNHG1 plays an important role in facilitating AML progression at least in part by negatively regulating miR-101, and provides a new target for treating AML.
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Affiliation(s)
- Ming Tian
- Department of Hematology, The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang, Hubei 443000, China
| | - Wanjun Gong
- Department of Gastrointestinal Surgery, The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang, Hubei 443000, China
| | - Jingming Guo
- Department of Hematology, The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang, Hubei 443000, China
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31
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The long non-coding RNA SNHG1 promotes glioma progression by competitively binding to miR-194 to regulate PHLDA1 expression. Cell Death Dis 2019; 10:463. [PMID: 31189920 PMCID: PMC6561933 DOI: 10.1038/s41419-019-1698-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/10/2019] [Accepted: 05/28/2019] [Indexed: 12/28/2022]
Abstract
Long non-coding RNAs (lncRNAs) play a vital role in tumourigenesis, including that of glioma. Small nucleolar RNA host gene 1 (SNHG1) is a relatively novel lncRNA that is involved in the development of multiple human tumours. However, its underlying molecular mechanism in glioma has not been completely clarified. In this study, we show that SNHG1 is overexpressed in glioma tissues and cell lines. A series of functional assays suggested that SNHG1 promotes glioma progression in vitro and in vivo. Next, through online databases, a luciferase reporter assay and an RNA pull-down assay, we confirmed that SNHG1 functions as a sponge for miR-194, which acts as a suppressor in glioma. We also verified that pleckstrin homology like domain family A, member 1 (PHLDA1) is the functional target of miR-194. Moreover, rescue experiments demonstrated that SNHG1 regulates PHLDA1 expression in a miR-194-dependent manner. Taken together, our study shows that SNHG1 promotes glioma progression by competitively binding to miR-194 to regulate PHLDA1 expression, which may provide a novel therapeutic strategy for glioma.
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32
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Ma L, Zhang L, Guo A, Liu LC, Yu F, Diao N, Xu C, Wang D. Overexpression of FER1L4 promotes the apoptosis and suppresses epithelial-mesenchymal transition and stemness markers via activating PI3K/AKT signaling pathway in osteosarcoma cells. Pathol Res Pract 2019; 215:152412. [PMID: 31000382 DOI: 10.1016/j.prp.2019.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/18/2019] [Accepted: 04/05/2019] [Indexed: 12/15/2022]
Abstract
Novel long non-coding RNA Fer-1-like protein 4 (FER1L4) has been identified as a tumor suppressor in endometrial carcinoma, ovarian cancer, hepatocellular carcinoma, esophageal squamous cell carcinoma. However, the function of FER1L4 in osteosarcoma has not been clear. The aim of the research was to explore the effects of FER1L4 in osteosarcoma. Results showed that FER1L4 was observed to be lowly expressed in osteosarcoma cell lines (US-O2, MG-63 and SaOS-2 cells), especially MG63 cells. Besides, overexpression of FER1L4 remarkably repressed the proliferation, migration and invasion of MG63 cells. FER1L4-induced apoptotic cell death leaded to the activation of caspase-3 and Bax/Bcl2. Moreover, epithelial-mesenchymal transition (EMT) was tremendously suppressed by increased FER1L4, evidences were the increased E-cadherin and reduced vimentin and fibronectin. Blocking FER1L4 expression by sh-FER1L4 treatment increased the expression of SOX9, CD44, ALDH1, Nanog and Oct4, indicating that FER1L4 could effectively decrease cell stemness in osteosarcoma. Furthermore, the protein levels of p-AKT and p-PI3K were remarkably suppressed when FER1L4 was knocked down. In conclusion, the study indicated that FER1L4 acted as a tumor suppressor in osteosarcoma via activating PI3K/AKT pathway may be a new prognostic biomarker and potential therapeutic target for osteosarcoma intervention.
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Affiliation(s)
- Lifeng Ma
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, 100050, PR China
| | - Liang Zhang
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, 100050, PR China
| | - Ai Guo
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, 100050, PR China.
| | - Lijun C Liu
- Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Ohio, 43614, USA
| | - Fei Yu
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, 100050, PR China
| | - Naicheng Diao
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, 100050, PR China
| | - Chongyang Xu
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, 100050, PR China
| | - Difan Wang
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, 100050, PR China
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