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Liao X, Wei R, Zhou J, Wu K, Li J. Emerging roles of long non-coding RNAs in osteosarcoma. Front Mol Biosci 2024; 11:1327459. [PMID: 38516191 PMCID: PMC10955361 DOI: 10.3389/fmolb.2024.1327459] [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: 10/25/2023] [Accepted: 02/12/2024] [Indexed: 03/23/2024] Open
Abstract
Osteosarcoma (OS) is a highly aggressive and lethal malignant bone tumor that primarily afflicts children, adolescents, and young adults. However, the molecular mechanisms underlying OS pathogenesis remain obscure. Mounting evidence implicates dysregulated long non-coding RNAs (lncRNAs) in tumorigenesis and progression. These lncRNAs play a pivotal role in modulating gene expression at diverse epigenetic, transcriptional, and post-transcriptional levels. Uncovering the roles of aberrant lncRNAs would provide new insights into OS pathogenesis and novel tools for its early diagnosis and treatment. In this review, we summarize the significance of lncRNAs in controlling signaling pathways implicated in OS development, including the Wnt/β-catenin, PI3K/AKT/mTOR, NF-κB, Notch, Hippo, and HIF-1α. Moreover, we discuss the multifaceted contributions of lncRNAs to drug resistance in OS, as well as their potential to serve as biomarkers and therapeutic targets. This review aims to encourage further research into lncRNA field and the development of more effective therapeutic strategies for patients with OS.
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Affiliation(s)
- Xun Liao
- Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu, Sichuan, China
| | - Rong Wei
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Junxiu Zhou
- Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu, Sichuan, China
| | - Ke Wu
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jiao Li
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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Uttam V, Rana MK, Sharma U, Singh K, Jain A. Circulating long non-coding RNA EWSAT1 acts as a liquid biopsy marker for esophageal squamous cell carcinoma: A pilot study. Noncoding RNA Res 2024; 9:1-11. [PMID: 38028735 PMCID: PMC10679462 DOI: 10.1016/j.ncrna.2023.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/19/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
The widespread public health problem of esophageal squamous cell carcinoma (ESCC) is the cause of an increasing number of deaths each year due to delayed diagnosis. Therefore, we require specific and sensitive new biomarkers to manage ESCC better. The detection of diseases, such as cancer, can now be achieved through non-invasive circulating blood-based methods. Blood-based circulating non-coding RNAs, such as miRNA and lncRNA, have been extensively used as valuable markers for lung, esophageal, and breast cancer diagnostic purposes, as quoted in our previous research. Herein, we investigated the role of novel long non-coding RNA EWSAT1 as a blood-based liquid biopsy biomarker for the ESCC. Our findings indicate that EWSAT1 lncRNA has an increased tumor suppressive activity in ESCC, as it reduces by ∼2.59-fold relative to healthy controls. Moreover, we established that EWSAT1 expression can significantly distinguish between clinicopathological characteristics, including age, gender, and lifestyle choices such as smoking, alcohol consumption, and drinking hot beverages among patients with ESCC and healthy individuals. In addition, the expression levels of lncRNA EWSAT1 could distinguish between individuals with more advanced ESCC cancer and those without it, as illustrated by the ROC curve (AUC = 0.7174, 95 % confidence intervals = 0.5901 to 0.8448, p-value = 0.001). Our in-silico prediction methods demonstrated that miR-873-5p is the direct target of EWSAT1, which competes with the tumor suppressor candidate 3 (TUSC3) and EGL-9 family hypoxia-inducible factor 3 (EGLN3) mRNAs through a sponging mechanism, creating the EWSAT1/miR-873-5p/mRNA axis. We have analyzed the role of EWSAT1 in various cellular processes and signaling pathways, including mTOR, Wnt, and MAPK signaling pathways. Circulating EWSAT1 can be used as a liquid biopsy marker for diagnosis of ESCC and has the potential to serve as an effective therapeutic biomarker, according to this pilot study.
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Affiliation(s)
- Vivek Uttam
- Department of Zoology, Central University of Punjab, Ghudda, 151401, Bathinda, Punjab, India
| | - Manjit Kaur Rana
- Department of Pathology/Laboratory Medicine, All India Institute of Medical Sciences, 151001, Bathinda, Punjab, India
| | - Uttam Sharma
- Department of Zoology, Central University of Punjab, Ghudda, 151401, Bathinda, Punjab, India
| | - Karuna Singh
- Department of Radiotherapy, Advanced Cancer Institute, 151001, Bathinda, Affiliated with Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Aklank Jain
- Department of Zoology, Central University of Punjab, Ghudda, 151401, Bathinda, Punjab, India
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Cui S, Yang CL, Chen DY. LncRNA EWSAT1 Regulates the Tumorigenesis of NSCLC as a ceRNA by Modulating miR-330-5p/ITGA5 Axis. Biochem Genet 2021; 59:1441-1456. [PMID: 33928467 DOI: 10.1007/s10528-021-10069-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
The aim of the study is to investigate how lncRNA EWSAT1 regulates the tumorigenesis of non-small cell lung cancer (NSCLC) as a ceRNA by modulating miR-330-5p/ITGA5 axis. qRT-PCR was conducted to evaluate the expression of EWSAT1 in NSCLC tissue. Then, A549 cells were selected and divided into Blank shScramble, shEWSAT1, miR-330-5p inhibitor, shEWSAT1 + miR-330-5p inhibitor, and siITGA5 and miR-330-5p inhibitor + siITGA5 groups. Besides, a series of in-vitro experiments were carried out to determine the changes in cell proliferation, apoptosis, invasion, and migration in each group. In addition, xenograft models were also constructed on nude mice to detect the tumor volume and weight, and the expression of Ki67 and apoptosis in xenograft tumor were evaluated. In NSCLC tissue and cell, EWSAT1 was upregulated significantly, demonstrating a correlation with tumor diameter, differentiation, lymph node metastasis, and TNM stage. Dual luciferase reporter gene assay confirmed targeting relationships among miR-330-5p, EWSAT1, and ITGA5. In comparison with the Blank group, the number of cell clones in the shEWSAT1 group and siITGA5 decreased, with declined invasion and migration but increased apoptotic rate. Meanwhile, ITGA5, MMP-2, and MMP-9 were downregulated with upregulated cleaved caspase-3. However, the changes above were totally reversed in the miR-330-5p inhibitor group, and miR-330-5p inhibitor transfection abolished the effect of shEWSAT1. In addition, subcutaneous xenotransplantation showed that the tumor growth in shEWSAT1 group retarded significantly, with downregulation of Ki67 and increase apoptotic rate. Silencing EWSAT1 could inhibit the expression of ITGA5 via upregulating miR-330-5p, thus, resulting in the inhibition of NSCLC cell growth.
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Affiliation(s)
- Su Cui
- Department of Thorax, The First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, Liaoning, 110001, People's Republic of China.
| | - Chun-Lu Yang
- Department of Thorax, The First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, Liaoning, 110001, People's Republic of China
| | - Dong-Yi Chen
- Department of Thorax, The First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, Liaoning, 110001, People's Republic of China
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Liu J, Huang S, Liao X, Chen Z, Li L, Yu L, Zhan W, Li R. LncRNA EWSAT1 Promotes Colorectal Cancer Progression Through Sponging miR-326 to Modulate FBXL20 Expression. Onco Targets Ther 2021; 14:367-378. [PMID: 33469313 PMCID: PMC7812937 DOI: 10.2147/ott.s272895] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Ewing sarcoma-associated transcript 1 (EWSAT1) has been reported to be a pivotal modulator in a series of cancers. However, the function of EWSAT1 in colorectal cancer (CRC) has not been elaborated. This study aimed to explore the role of EWSAT1 in CRC progression and the underlying mechanisms. METHODS The expression patterns of EWSAT1, miR-326 and FBXL20 were examined by qCRCR. Si-EWSAT1 was transfected to study the effects of EWSAT1 on cell proliferation and metastasis. Rescue experiments were performed to investigate the underlying mechanisms in vitro. Xenograft models were used to evaluate the role of EWSAT1 in vivo. RESULTS We found that EWSAT1 was highly expressed in CRC tissues and cell lines and associated with poor overall survival. In vitro, knockdown of EWSAT1 suppressed the cell proliferation, migration and invasion. Moreover, miR-326 was found to be a target of EWSAT1, and miR-326 inhibitor could partially reverse the effects on CRC cell progression induced by si-EWSAT1. Subsequently, we validated FBXL20 as a vital downstream target for miR-326, and EWSAT1 positively regulated FBXL20 via miR-326 in vitro. In addition, these findings were confirmed by in vivo experiments. CONCLUSION Taken together, the data showed that EWSAT1 promoted CRC progression via targeting miR-326/FBXL20 pathway, which might provide a novel therapeutic target for CRC treatment.
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Affiliation(s)
- Jing Liu
- Imaging Department, Affiliated Hospital of Guizhou Medical University, Guiyang, People’s Republic of China
| | - Shimei Huang
- Forensic Clinical Teaching and Research Office, Guizhou Medical University, Guiyang, People’s Republic of China
| | - Xin Liao
- Imaging Department, Affiliated Hospital of Guizhou Medical University, Guiyang, People’s Republic of China
| | - Zhongsheng Chen
- Surgery, Guizhou Medical University, Guiyang, People’s Republic of China
| | - Lianghe Li
- Surgery, Guizhou Medical University, Guiyang, People’s Republic of China
| | - Lei Yu
- Department of Pathology, Guiyang Maternal and Child Health Hospital, Guiyang, People’s Republic of China
| | - Wei Zhan
- General Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, People’s Republic of China
| | - Rui Li
- Department of Traditional Chinese Medicine, Guizhou Provincial People’s Hospital, Guiyang, People’s Republic of China
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Jiang Y, Sun-Waterhouse D, Chen Y, Li F, Li D. Epigenetic mechanisms underlying the benefits of flavonoids in cardiovascular health and diseases: are long non-coding RNAs rising stars? Crit Rev Food Sci Nutr 2021; 62:3855-3872. [PMID: 33427492 DOI: 10.1080/10408398.2020.1870926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cardiovascular diseases (CVDs) rank as the first leading cause of death globally. High dietary polyphenol (especially flavonoids) intake has strongly been associated with low incidence of the primary outcome, overall mortality, blood pressure, inflammatory biomarkers, onset of new-onset type 2 diabetes mellitus (T2DM), and obesity. Phytogenic flavonoids affect the physiological and pathological processes of CVDs by modulating various biochemical signaling pathways. Non-coding RNAs (ncRNAs) have attracted increasing attention as fundamental regulator of gene expression involved in CVDs. Among the different ncRNA subgroups, long ncRNAs (lncRNAs) have recently emerged as regulatory eukaryotic transcripts and therapeutic targets with important and diverse functions in health and diseases. lncRNAs may be associated with the initiation, development and progression of CVDs by modulating acute and chronic inflammation, adipogenesis and lipid metabolism, and cellular physiology. This review summarizes this research on the modulatory effects of lncRNAs and their roles in mediating cellular processes. The mechanisms of action of flavonoids underlying their therapeutic effects on CVDs are also discussed. Based on our review, flavonoids might facilitate a significant epigenetic modification as part (if not full) of their tissue-/cell-related biological effects. This finding may be attributed to their interaction with cellular signaling pathways involved in chronic diseases. Certain lncRNAs might be the target of specific flavonoids, and some critical signaling processes involved in the intervention of CVDs might mediate the therapeutic roles of flavonoids.
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Affiliation(s)
- Yang Jiang
- College of Food Science and Engineering, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Shandong Agricultural University, Taian, PR China
| | | | - Yilun Chen
- College of Food Science and Engineering, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Shandong Agricultural University, Taian, PR China
| | - Feng Li
- College of Food Science and Engineering, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Shandong Agricultural University, Taian, PR China
| | - Dapeng Li
- College of Food Science and Engineering, Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes, Shandong Agricultural University, Taian, PR China
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Zhou Q, Xie Y, Wang L, Xu T, Gao Y. LncRNA EWSAT1 upregulates CPEB4 via miR-330-5p to promote cervical cancer development. Mol Cell Biochem 2020; 471:177-188. [PMID: 32556917 DOI: 10.1007/s11010-020-03778-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 06/02/2020] [Indexed: 12/19/2022]
Abstract
Long non-coding RNA (lncRNA) Ewing sarcoma associated transcript 1 (EWSAT1) is an oncogene in a variety of tumors. Here, we planned to demonstrate EWSAT1 function in cervical cancer and further illustrate its underlying mechanism. EWSAT1 expression in cervical cancer was evaluated through qRT-PCR. Colony forming capacity was measured by colony formation assay and cell proliferation ability was measured by CCK-8 kit. Wound healing experiment was applied to test the cell migration and transwell assay was applied to test the invasion ability. Luciferase assay was employed to demonstrate EWSAT1 and miR-330-5p interaction. In cervical cancer, the expression of EWSAT1 was enhanced and contributed to the poor prognosis. Downregulated EWSAT1 expression inhibited Hela cell migration, proliferation, and invasion. EWSAT1 targeted to miR-330-5p and upregulated cytoplasmic polyadenylation element-binding protein 4 (CPEB4) expression by sponging miR-330-5p. Our study revealed that EWSAT1 enhances CPEB4 expression through sponging miR-330-5p, thereby promoting cervical cancer development, which might provide potential therapeutic targets for clinically cervical cancer patients.
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Affiliation(s)
- Qingyan Zhou
- Department of Gynecology, Dongchangfu District, Liaocheng Dongchangfu People's Hospital, No. 128 Songgui Road, Liaocheng, 252000, Shandong, China.
| | - Yuan Xie
- Department of Gynecology, Dongchangfu District, Liaocheng Dongchangfu People's Hospital, No. 128 Songgui Road, Liaocheng, 252000, Shandong, China
| | - Li Wang
- Department of Gynecology, Dongchangfu District, Liaocheng Dongchangfu People's Hospital, No. 128 Songgui Road, Liaocheng, 252000, Shandong, China
| | - Tao Xu
- Delivery Room, Dongchangfu District, Liaocheng Dongchangfu People's Hospital, No. 128 Songgui Road, Liaocheng, 252000, Shandong, China
| | - Yongbin Gao
- Department of Gynecology, Dongchangfu District, Liaocheng Dongchangfu People's Hospital, No. 128 Songgui Road, Liaocheng, 252000, Shandong, China
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Yang H, Chen W, Jiang G, Yang J, Wang W, Li H. Long non-coding RNA EWSAT1 contributes to the proliferation and invasion of glioma by sponging miR-152-3p. Oncol Lett 2020; 20:1846-1854. [PMID: 32724428 PMCID: PMC7377177 DOI: 10.3892/ol.2020.11716] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/17/2020] [Indexed: 12/28/2022] Open
Abstract
Long non-coding RNAs (lncRNA) are a type of ncRNA with a length ranging from 200-1,000 nucleotides. Previous studies have confirmed that the lncRNA Ewing sarcoma associated transcript 1 (EWSAT1) exerts regulatory roles in cancer development and progression. However, its clinical significance in glioma remains unknown. In the present study, RNA-sequencing data from the Gene Expression Omnibus database and The Cancer Genome Atlas was explored to investigate the association between EWSAT1 expression and prognosis in patients with glioma. Increased EWSAT1 was associated with the presence of necrosis on magnetic resonance imaging scans in patients with glioma. Furthermore, knockdown of EWSAT1 was indicated to suppress the proliferative and invasive abilities of glioblastoma cell lines using Cell Counting Kit-8 and Transwell assays. Additionally, microRNA (miR)-152-3p was identified as a potential target of EWSAT1. The present study demonstrated that EWSAT1 interacted directly with miR-152-3p, and rescue experiments confirmed that EWSAT1 participated in glioma development by suppressing miR-152-3p. These results indicated that EWSAT1 is involved in the occurrence and progression of glioma, and may serve as a novel target and potential prognostic biomarker of glioma treatment.
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Affiliation(s)
- Hui Yang
- Department of Neurology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154001, P.R. China
| | - Weida Chen
- Department of Cardiology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154001, P.R. China
| | - Guangyu Jiang
- Department of Neurosurgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154001, P.R. China
| | - Jun Yang
- Department of Neurosurgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154001, P.R. China
| | - Weifeng Wang
- Department of Neurosurgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154001, P.R. China
| | - Hongbin Li
- Department of Neurosurgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154001, P.R. China
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Zhang L, Zhao G, Ji S, Yuan Q, Zhou H. Downregulated Long Non-Coding RNA MSC-AS1 Inhibits Osteosarcoma Progression and Increases Sensitivity to Cisplatin by Binding to MicroRNA-142. Med Sci Monit 2020; 26:e921594. [PMID: 32155139 PMCID: PMC7081928 DOI: 10.12659/msm.921594] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Osteosarcoma (OS) is the most prevalent malignant primary bone tumor, resulting from severe transformation of primitive mesenchymal cells, which induces osteogenesis. Long non-coding RNA (lncRNA) MSC-AS1 triggers osteogenic differentiation by sponging microRNA (miR)-140-5p. The present study assessed the mechanism of lncRNA MSC-AS1 in OS biological features and sensitivity to cisplatin (DDP) by binding to miR-142. Material/Methods Firstly, lncRNA MSC-AS1 expression in OS tissues and cells was analyzed. OS cells were transfected with silenced MSC-AS1 to determine its role in OS biological behaviors, and we also assessed the effect of MSC-AS1 on OS sensitivity to DDP. Then, website prediction and dual-luciferase reporter gene assay were utilized for verification of the binding site between MSC-AS1 and miR-142. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and Western blot analysis were performed to determine the effect of MSC-AS1 on expression of miR-142, cyclin-dependent kinase 6 (CDK6), and the PI3K/AKT signaling pathway. Xenograft transplantation was also applied to confirm the in vitro experiments. Results Overexpressed MSC-AS1 was associated with poor prognosis of OS patients. OS cell proliferation, invasion, and migration were reduced after silencing MSC-AS1, while cell apoptosis was enhanced. Moreover, silencing MSC-AS1 made OS cells more sensitive to DDP. Interestingly, MSC-AS1 knockdown induced miR-142 expression and reduced CDK6 levels, thereby decreasing the protein expression of p-PI3K/t-PI3K and p-AKT/t-AKT. Silencing MSC-AS1 repressed OS progression in vivo. Conclusions Our study demonstrated that silencing MSC-AS1 inhibited OS biological behaviors by enhancing miR-142 to decrease CDK6 and inactivating the PI3K/AKT axis. Our results may provide new insights for OS treatment.
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Affiliation(s)
- Longqiang Zhang
- Department of Orthopedics, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Guangzong Zhao
- Department of Orthopedics, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Shaolin Ji
- Department of Orthopedics, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Qihua Yuan
- Department of Orthopedics, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Haiyan Zhou
- Health Management Center, Weifang People's Hospital, Weifang, Shandong, China (mainland)
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Ma C, Nie XG, Wang YL, Liu XH, Liang X, Zhou QL, Wu DP. CBX3 predicts an unfavorable prognosis and promotes tumorigenesis in osteosarcoma. Mol Med Rep 2019; 19:4205-4212. [PMID: 30942427 PMCID: PMC6470990 DOI: 10.3892/mmr.2019.10104] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 03/07/2019] [Indexed: 12/24/2022] Open
Abstract
CBX3, namely chromobox protein homolog 3, a member of the heterochomatin protein 1 (HP1) family, has been shown to be associated with the tumorigenesis of various types of cancer. The aim of the present study was to assess the biological role and the clinicopathological importance of CBX3 in osteosarcoma. The Oncomine database was utilized to determine the CBX3 expression in sarcoma patients. A retrospective cohort study was conducted to evaluate the prognostic value of CBX3 expression. In addition, correlations between the clinicopathological features of the osteosarcoma patients and CBX3 expression were assessed and involved recurrence, distant metastasis, lymph node metastasis, response to chemotherapy, pathological differentiation, clinical stage, anatomic location, tumor size and age. To investigate the function of CBX3 in osteosarcoma, a small interfering RNA for CBX3 was designed and this was used for the transfection of osteosarcoma MG63 cells. Then, the effects of CBX3 on proliferation, cell cycle distribution and apoptosis of osteosarcoma cells were investigated via CCK-8 assay and cell cycle assay and cell apoptosis analysis, respectively. Based on our findings, upregulation of CBX3 expression was noted both in osteosarcoma and also other sarcoma types, which included pleomorphic liposarcoma, myxofibrosarcoma, myxoid/round cell liposarcoma and dedifferentiated liposarcoma. In addition, based on the retrospective cohort study, CBX3 expression was associated with the disease-free survival (DFS) and overall survival (OS) of the osteosarcoma patients and a large tumor size, high distant metastasis rate and high clinical stage rate. In addition, the proliferation ability was blocked by the knockdown of CBX3 through the application of CBX3 siRNA, and CBX3 knockdown also led to increased apoptosis and cell cycle arrest at G0 and G1 phases in osteosarcoma cells. CBX3 is highly expressed in human osteosarcoma tissues. Meanwhile, high CBX3 is a predictor of the poor prognosis of osteosarcoma patients. To conclude, the growth of osteosarcoma can be promoted by CBX3, which may be used as an independent potential prognostic biomarker for patients suffering from osteosarcoma.
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Affiliation(s)
- Chao Ma
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
| | - Xing-Guo Nie
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
| | - Yan-Li Wang
- Department of Operating Theatre, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
| | - Xiang-Hua Liu
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
| | - Xue Liang
- Department of Central Sterile Supply, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
| | - Qing-Lan Zhou
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
| | - Da-Peng Wu
- Department of Orthopedics, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453000, P.R. China
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