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Cheng L, Chang Y, Xia Z, Liu Y, Liu X, Xiong L, Liu C, Zhu X, Wang M, Qiu L. Remote modulation of WWOX by an intronic variant associated with survival of Chinese gastric cancer patients. Int J Cancer 2024; 154:307-319. [PMID: 37615513 DOI: 10.1002/ijc.34703] [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: 01/26/2023] [Revised: 07/16/2023] [Accepted: 07/31/2023] [Indexed: 08/25/2023]
Abstract
The protein WWOX was reported to be involved in cancer progression via interaction with mTOR and DNA repair pathway. We previously reported noteworthy association of some single nucleotide polymorphisms (SNPs) in mTOR and DNA repair pathways with gastric cancer (GCa) patients' survival. We hypothesized that genetic variants in WWOX gene could predict the survival of GCa patients. By extracting WWOX genetic variants from our ongoing genome-wide association study including 796 GCa patients from an Eastern Chinese population, we identified 51 out of 1913 SNPs to be significantly associated with survival of GCa patients, which passed the false positive probability tests. In particular, the intronic variant rs9922483, a G>T change, was associated with 21% increased death risk for GCa patients (HR = 1.21, 95% CI = 1.04-1.42, P = .015). This locus was predicted to be involved in potential enhancer by bioinformatics analysis. Genotype-phenotype correlation analysis revealed decreased expression of WWOX by rs9922483 G>T change. Mechanistically, rs9922483 locus may exhibits long-range interaction with WWOX promoter, and the G>T change inhibited the transcriptional activity driven by WWOX promoter in luciferase reporter system. Especially, the G>T change had an allele-specific negative effect on NR3C1 binding, and NR3C1 promoted the expression of WWOX in GCa cells. Further functional analysis indicated an increase in proliferation, migration and invasion of GCa cells by knockdown of WWOX. In conclusion, WWOX genetic variants may modulate survival of Chinese GCa patients by exerting remote regulatory effect on WWOX expression. Our results highlight the cis-regulatory effect of genetic variants on genes and survival modulation for GCa patients.
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Affiliation(s)
- Lei Cheng
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yuanyuan Chang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Zuguang Xia
- Department of Lymphoma, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yizhen Liu
- Department of Nursing, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Xiao Liu
- Department of Nursing, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Liwen Xiong
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Chenchen Liu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Gastric Surgery, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiaodong Zhu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Gastrointestinal Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Mengyun Wang
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Lixin Qiu
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Gastrointestinal Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
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The WWOX/HIF1A Axis Downregulation Alters Glucose Metabolism and Predispose to Metabolic Disorders. Int J Mol Sci 2022; 23:ijms23063326. [PMID: 35328751 PMCID: PMC8955937 DOI: 10.3390/ijms23063326] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 02/01/2023] Open
Abstract
Recent reports indicate that the hypoxia-induced factor (HIF1α) and the Warburg effect play an initiating role in glucotoxicity, which underlies disorders in metabolic diseases. WWOX has been identified as a HIF1α regulator. WWOX downregulation leads to an increased expression of HIF1α target genes encoding glucose transporters and glycolysis’ enzymes. It has been proven in the normoglycemic mice cells and in gestational diabetes patients. The aim of the study was to determine WWOX’s role in glucose metabolism regulation in hyperglycemia and hypoxia to confirm its importance in the development of metabolic disorders. For this purpose, the WWOX gene was silenced in human normal fibroblasts, and then cells were cultured under different sugar and oxygen levels. Thereafter, it was investigated how WWOX silencing alters the genes and proteins expression profile of glucose transporters and glycolysis pathway enzymes, and their activity. In normoxia normoglycemia, higher glycolysis genes expression, their activity, and the lactate concentration were observed in WWOX KO fibroblasts in comparison to control cells. In normoxia hyperglycemia, it was observed a decrease of insulin-dependent glucose uptake and a further increase of lactate. It likely intensifies hyperglycemia condition, which deepen the glucose toxic effect. Then, in hypoxia hyperglycemia, WWOX KO caused weaker glucose uptake and elevated lactate production. In conclusion, the WWOX/HIF1A axis downregulation alters glucose metabolism and probably predispose to metabolic disorders.
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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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Guo Q, Ma J, Wu J. MiRNA-218 inhibits cell proliferation, migration and invasion by targeting Runt-related transcription factor 2 (Runx2) in human osteosarcoma cells. Regen Ther 2021; 18:508-515. [PMID: 34977284 PMCID: PMC8668442 DOI: 10.1016/j.reth.2021.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 02/03/2023] Open
Abstract
PURPOSE The deregulation of miRNA-218 has been found in a number of cancers. Using miRNA-218 as a target for Runt-related transcription factor 2 (Runx2), we sought to understand the role of miRNA-218 in osteosarcoma (OS). METHODS The expression of miRNA-218 was detected in the OS tumor tissues and OS cells. The Runx2 expression level was evaluated in Saos-2, 143B, U2OS, and MG-63. miRNA-218 overexpressed U2OS cells were achieved by transfection with miRNA-218 mimics. The role of miRNA-218 in inhibiting OS tumorigenesis was explored by CCK8, colony formation, cell wound scratch and Transwell assay. TargetScan and dual-luciferase reporter assay identified the interaction between miRNA-218 and Runx2. The inhibitive effect of miRNA-218 on OS through targeting Runx2 was also evaluated. RESULTS MiRNA-218 levels were remarkably down-regulated in OS tumor tissues and cell lines. The overexpression of miRNA-218 suppressed U2OS cell development and metastasis. The target interaction between miRNA-218 and Runx2 was validated, and their expression showed a negative correlation in U2OS cells. The suppressed U2OS cell development and metastasis were remarkably reversed by Runx2 overexpression. CONCLUSION MiRNA-218 showed an inhibitive effect on the development and metastasis of osteosarcoma cell proliferation by targeting Runx2. Our findings may provide novel clues for OS treatment.
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Affiliation(s)
- Qiang Guo
- Department of Thoracic Surgery, Jinan Fifth People's Hospital, No. 24297, Jingshi Road, Huaiyin District, Jinan City, Shandong, 250022, China
| | - Junan Ma
- Department of Orthopedics, Chengwu County People's Hospital Affiliated to First Medical University of Shandong, No. 66, Bole Street, Chengwu County, Heze City, Shndong, 274200, China
| | - Jing Wu
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, The Second People's Hospital of Huai'an, Huai'an, Jiangsu Province, 223001, China
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Steinberg DJ, Aqeilan RI. WWOX-Related Neurodevelopmental Disorders: Models and Future Perspectives. Cells 2021; 10:cells10113082. [PMID: 34831305 PMCID: PMC8623516 DOI: 10.3390/cells10113082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/28/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022] Open
Abstract
The WW domain-containing oxidoreductase (WWOX) gene was originally discovered as a putative tumor suppressor spanning the common fragile site FRA16D, but as time has progressed the extent of its pleiotropic function has become apparent. At present, WWOX is a major source of interest in the context of neurological disorders, and more specifically developmental and epileptic encephalopathies (DEEs). This review article aims to introduce the many model systems used through the years to study its function and roles in neuropathies. Similarities and fundamental differences between rodent and human models are discussed. Finally, future perspectives and promising research avenues are suggested.
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Taouis K, Driouch K, Lidereau R, Lallemand F. Molecular Functions of WWOX Potentially Involved in Cancer Development. Cells 2021; 10:cells10051051. [PMID: 33946771 PMCID: PMC8145924 DOI: 10.3390/cells10051051] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 12/16/2022] Open
Abstract
The WW domain-containing oxidoreductase gene (WWOX) was cloned 21 years ago as a putative tumor suppressor gene mapping to chromosomal fragile site FRA16D. The localization of WWOX in a chromosomal region frequently altered in human cancers has initiated multiple current studies to establish its role in this disease. All of this work suggests that WWOX, due to its ability to interact with a large number of partners, exerts its tumor suppressive activity through a wide variety of molecular actions that are mostly cell specific.
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Otoukesh B, Abbasi M, Gorgani HOL, Farahini H, Moghtadaei M, Boddouhi B, Kaghazian P, Hosseinzadeh S, Alaee A. MicroRNAs signatures, bioinformatics analysis of miRNAs, miRNA mimics and antagonists, and miRNA therapeutics in osteosarcoma. Cancer Cell Int 2020; 20:254. [PMID: 32565738 PMCID: PMC7302353 DOI: 10.1186/s12935-020-01342-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/12/2020] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) involved in key signaling pathways and aggressive phenotypes of osteosarcoma (OS) was discussed, including PI3K/AKT/MTOR, MTOR AND RAF-1 signaling, tumor suppressor P53- linked miRNAs, NOTCH- related miRNAs, miRNA -15/16 cluster, apoptosis related miRNAs, invasion-metastasis-related miRNAs, and 14Q32-associated miRNAs cluster. Herrin, we discussed insights into the targeted therapies including miRNAs (i.e., tumor-suppressive miRNAs and oncomiRNAs). Using bioinformatics tools, the interaction network of all OS-associated miRNAs and their targets was also depicted.
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Affiliation(s)
- Babak Otoukesh
- Orthopedic Surgery Fellowship in Département Hospitalo-Universitaire MAMUTH « Maladies musculo-squelettiques et innovations thérapeutiques » , Université Pierre et Marie-Curie, Sorbonne Université, Paris, France.,Department of Orthopedic Surgery, Bone and Joint Reconstruction Research Center, Iran University of Medical Science, Postal code : 1445613131 Tehran, Iran
| | - Mehdi Abbasi
- Brain Mapping Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Habib-O-Lah Gorgani
- Department of Orthopedic Surgery, Bone and Joint Reconstruction Research Center, Iran University of Medical Science, Postal code : 1445613131 Tehran, Iran
| | - Hossein Farahini
- Department of Orthopedic Surgery, Bone and Joint Reconstruction Research Center, Iran University of Medical Science, Postal code : 1445613131 Tehran, Iran
| | - Mehdi Moghtadaei
- Department of Orthopedic Surgery, Bone and Joint Reconstruction Research Center, Iran University of Medical Science, Postal code : 1445613131 Tehran, Iran
| | - Bahram Boddouhi
- Department of Orthopedic Surgery, Bone and Joint Reconstruction Research Center, Iran University of Medical Science, Postal code : 1445613131 Tehran, Iran
| | - Peyman Kaghazian
- Department of Orthopedic and Traumatology, Universitätsklinikum Bonn, Bonn, Germany
| | - Shayan Hosseinzadeh
- Department of Orthopedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA USA
| | - Atefe Alaee
- Department of Information Sciences, Tehran University of Medical Sciences, Tehran, Iran
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Zhai Y, Han Y, Han Z. Aberrant expression of WWOX and its association with cancer stem cell biomarker expression. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2020; 13:1176-1184. [PMID: 32509092 PMCID: PMC7270669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Nanog and CD133 are biomarkers of cancer stem cells (CSCs) that regulate cancer progression. The WW domain-containing oxidoreductase (WWOX) is a tumor suppressor protein that can inhibit tumor cell proliferation. The purpose of this study was to investigate the expression and clinical significance of Nanog, CD133, and WWOX in infiltrating breast cancer (IBC). METHODS Expressions of Nanog, CD133, and WWOX in 204 IBC specimens and their corresponding control specimens were detected by immunohistochemistry. Patients' clinicopathologic and follow-up data were also collected. RESULTS The rates of positive expression of Nanog and CD133 were significantly higher in IBC specimens than in control specimens, and their expression was positively associated with tumor size, grade, and tumor stages, lymph node metastasis (LNM), and tumor-node-metastasis (TNM) stage. The rate of positive expression of WWOX was significantly lower in IBC specimens than in control specimens, and its expression was inversely associated with tumor size, grade, and tumor stages, LNM, and TNM stage. Patients whose specimens expressed Nanog, CD133, or HER2 had a reduced overall survival (OS) when compared with patients not expressing these proteins. However, patients whose specimens expressed WWOX, ER, or PR had an increased OS when compared with patients who did not show expression. Multivariate analysis demonstrated that expression of Nanog, CD133, WWOX, ER, and HER2, and the TNM stage were independent prognostic factors for IBC patients. CONCLUSIONS Therefore, Nanog, CD133, and WWOX should be considered as promising prognostic factors and therapeutic targets in IBC.
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Affiliation(s)
- Yunzhi Zhai
- Department of Medical Oncology, Pathology, The First Affiliated Hospital of Bengbu Medical College Anhui, China
| | - Yajuan Han
- Department of Medical Oncology, Pathology, The First Affiliated Hospital of Bengbu Medical College Anhui, China
| | - Zhengquan Han
- Department of Medical Oncology, Pathology, The First Affiliated Hospital of Bengbu Medical College Anhui, China
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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: 49] [Impact Index Per Article: 9.8] [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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Wu Z, Sun Z, Huang R, Zang D, Wang C, Yan X, Yan W. Silencing of synaptotagmin 7 regulates osteosarcoma cell proliferation, apoptosis, and migration. Histol Histopathol 2019; 35:303-312. [PMID: 31631310 DOI: 10.14670/hh-18-174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Synaptotagmin 7 (SYT7) is a component of the synaptotagmin family, which is essential in many physiological and pathological processes. In this study, we aimed to investigate the role of SYT7 in osteosarcoma. METHODS We defined the expression levels of SYT7 in osteosarcoma tissues and para-sarcoma tissues by immunohistochemistry and analyzed the possible correlation between SYT7 expression and pathological characteristics via Mann-Whitney U analysis and Spearman correlation analysis. The effects of SYT7 silencing in vitro cell growth were assessed by MTT assay. Cell cycle and cell apoptosis were assessed by flow cytometry analysis. Wound healing assay and transwell assay were applied to assess the migration and invasion capacity. RESULTS The results showed that the expression levels of SYT7 were upregulated in osteosarcoma tissues compared with para-sarcoma tissues and positively correlated with the pathological characteristics of osteosarcoma. Functional experiments demonstrated that SYT7 silencing significantly inhibited cell proliferation and colony formation capacity (P<0.001), induced cell cycle arrest which increased the proportion of G2 phase and decreased the proportion of S phase, enhanced cell apoptosis (P<0.01), and limited the capacity of migration and invasion (P<0.01), compared with shCtrl group. CONCLUSION The results indicated that SYT7 plays a crucial role in the development of osteosarcoma. SYT7 can be applied as a new diagnostic and therapeutic target in osteosarcoma.
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Affiliation(s)
- Zhiqiang Wu
- Department of Oncology, Shanghai Medical College, Fudan University, Xuhui District, Shanghai, China.,Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Xuhui District, Shanghai, China
| | - Zhengwang Sun
- Department of Oncology, Shanghai Medical College, Fudan University, Xuhui District, Shanghai, China.,Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Xuhui District, Shanghai, China
| | - Rui Huang
- Department of General Surgery, PLA 455 hospital, Changning District, Shanghai, China
| | - Ding Zang
- Department of Clinical Laboratory, PLA 455 hospital, Changning District, Shanghai, China
| | - Chunmeng Wang
- Department of Oncology, Shanghai Medical College, Fudan University, Xuhui District, Shanghai, China.,Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Xuhui District, Shanghai, China
| | - Xu Yan
- Department of Orthopedics, PLA 455 hospital, Changning District, Shanghai, China.
| | - Wangjun Yan
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Xuhui District, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Xuhui District, Shanghai, China.
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Chou PY, Lin SR, Lee MH, Schultz L, Sze CI, Chang NS. A p53/TIAF1/WWOX triad exerts cancer suppression but may cause brain protein aggregation due to p53/WWOX functional antagonism. Cell Commun Signal 2019; 17:76. [PMID: 31315632 PMCID: PMC6637503 DOI: 10.1186/s12964-019-0382-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 06/04/2019] [Indexed: 12/15/2022] Open
Abstract
Background Tumor suppressor WWOX physically binds p53 and TIAF1 and together induces apoptosis and tumor suppression. To understand the molecular action, here we investigated the formation of WWOX/TIAF1/p53 triad and its regulation of cancer cell migration, anchorage-independent growth, SMAD promoter activation, apoptosis, and potential role in neurodegeneration. Methods Time-lapse microscopy was used to measure the extent of cell migration. Protein/protein interactions were determined by co-immunoprecipitation, FRET microscopy, and yeast two-hybrid analysis. The WWOX/TIAF1/p53 triad-mediated cancer suppression was determined by measuring the extent of cell migration, anchorage-independent growth, SMAD promoter activation, and apoptosis. p53-deficient lung cancer cell growth in nude mice was carried out to assess the tumor suppressor function of ectopic p53 and/or WWOX. Results Wwox-deficient MEF cells exhibited constitutive Smad3 and p38 activation and migrated individually and much faster than wild type cells. TGF-β increased the migration of wild type MEF cells, but significantly suppressed Wwox knockout cell migration. While each of the triad proteins is responsive to TGF-β stimulation, ectopically expressed triad proteins suppressed cancer cell migration, anchorage-independent growth, and SMAD promoter activation, as well as caused apoptosis. The effects are due in part to TIAF1 polymerization and its retention of p53 and WWOX in the cytoplasm. p53 and TIAF1 were effective in suppressing anchorage-independent growth, and WWOX ineffective. p53 and TIAF1 blocked WWOX or Smad4-regulated SMAD promoter activation. WWOX suppressed lung cancer NCI-H1299 growth and inhibited splenomegaly by inflammatory immune response, and p53 blocked the event in nude mice. The p53/WWOX-cancer mice exhibited BACE upregulation, APP degradation, tau tangle formation, and amyloid β generation in the brain and lung. Conclusion The WWOX/TIAF1/p53 triad is potent in cancer suppression by blocking cancer cell migration, anchorage-independent growth and SMAD promoter activation, and causing apoptosis. Yet, p53 may functionally antagonize with WWOX. p53 blocks WWOX inhibition of inflammatory immune response induced by cancer, and this leads to protein aggregation in the brain as seen in the Alzheimer’s disease and other neurodegeneration. Electronic supplementary material The online version of this article (10.1186/s12964-019-0382-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pei-Yi Chou
- Institute of Molecular Medicine, National Cheng Kung University, College of Medicine, Tainan, Taiwan, 70101, Republic of China
| | - Sing-Ru Lin
- Institute of Molecular Medicine, National Cheng Kung University, College of Medicine, Tainan, Taiwan, 70101, Republic of China
| | - Ming-Hui Lee
- Institute of Molecular Medicine, National Cheng Kung University, College of Medicine, Tainan, Taiwan, 70101, Republic of China
| | - Lori Schultz
- Laboratory of Molecular Immunology, Guthrie Research Institute, Sayre, PA, 18840, USA
| | - Chun-I Sze
- Department of Cell Biology and Anatomy, National Cheng Kung University, College of Medicine, Tainan, Taiwan, 70101, Republic of China
| | - Nan-Shan Chang
- Institute of Molecular Medicine, National Cheng Kung University, College of Medicine, Tainan, Taiwan, 70101, Republic of China. .,Laboratory of Molecular Immunology, Guthrie Research Institute, Sayre, PA, 18840, USA. .,Department of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, 10314, USA. .,Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung, 40402, Taiwan, Republic of China.
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12
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Strategies by which WWOX-deficient metastatic cancer cells utilize to survive via dodging, compromising, and causing damage to WWOX-positive normal microenvironment. Cell Death Discov 2019; 5:97. [PMID: 31123603 PMCID: PMC6529460 DOI: 10.1038/s41420-019-0176-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 04/12/2019] [Indexed: 12/21/2022] Open
Abstract
Proapoptotic tumor suppressor WWOX is upregulated in the early stage of cancer initiation, which probably provides limitation to cancer growth and progression. Later, WWOX protein is reduced to enhance cancer cell growth, migration, invasiveness and metastasis. To understand how WWOX works in controlling cancer progression, here we demonstrate that apoptotic stress mediated by ectopic WWOX stimulated cancer cells to secrete basic fibroblast growth factor (bFGF) in order to support capillary microtubule formation. This event may occur in the cancer initiation stage. Later, when WWOX loss occurs in cancer cells, hyaluronidase production is then increased in the cancer cells to facilitate metastasis. We determined that inhibition of membrane hyaluronidase Tyr216-phosphorylated Hyal-2 by antibody suppresses cancer growth in vivo. WWOX-negative (WWOX-) cells dodged WWOX+cells in the microenvironment by migrating individually backward to avoid physical contacts and yet significantly upregulating the redox activity of WWOX+parental cells or other WWOX+cell types for causing apoptosis. Upon detecting the presence of WWOX+cells from a distance, WWOX- cells exhibit activation of MIF, Hyal-2, Eph, and Wnt pathways, which converges to MEK/ERK signaling and enables WWOX- cells to evade WWOX+cells. Inhibition of each pathway by antibody or specific chemicals enables WWOX- cells to merge with WWOX+cells. In addition, exogenous TGF-β assists WWOX- cells to migrate collectively forward and merge with WWOX+cells. Metastatic WWOX- cancer cells frequently secrete high levels of TGF-β, which conceivably assists them to merge with WWOX+cells in target organs and secure a new home base in the WWOX+microenvironment. Together, loss of WWOX allows cancer cells to develop strategies to dodge, compromise and even kill WWOX-positive cells in microenvironment.
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Maximov VV, Akkawi R, Khawaled S, Salah Z, Jaber L, Barhoum A, Or O, Galasso M, Kurek KC, Yavin E, Aqeilan RI. MiR-16-1-3p and miR-16-2-3p possess strong tumor suppressive and antimetastatic properties in osteosarcoma. Int J Cancer 2019; 145:3052-3063. [PMID: 31018244 DOI: 10.1002/ijc.32368] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 03/18/2019] [Accepted: 04/10/2019] [Indexed: 01/07/2023]
Abstract
Osteosarcoma (OS) is an aggressive malignancy affecting mostly children and adolescents. MicroRNAs (miRNAs) play important roles in OS development and progression. Here we found that miR-16-1-3p and miR-16-2-3p "passenger" strands, as well as the "lead" miR-16-5p strand, are frequently downregulated and possess strong tumor suppressive functions in human OS. Furthermore, we report different although strongly overlapping functions for miR-16-1-3p and miR-16-2-3p in OS cells. Ectopic expression of these miRNAs affected primary tumor growth, metastasis seeding and chemoresistance and invasiveness of human OS cells. Loss-of-function experiments verified tumor suppressive functions of these miRNAs at endogenous levels of expression. Using RNA immunoprecipitation (RIP) assays, we identify direct targets of miR-16-1-3p and miR-16-2-3p in OS cells. Moreover, validation experiments identified FGFR2 as a direct target for miR-16-1-3p and miR-16-2-3p. Overall, our findings underscore the importance of passenger strand miRNAs, at least some, in osteosarcomagenesis.
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Affiliation(s)
- Vadim V Maximov
- The Lautenberg Center for General and Tumor Immunology, Department of Immunology and Cancer Research-IMRIC, The Hebrew University-Hadassah Medical School at Ein-Kerem, Jerusalem, Israel
| | - Rania Akkawi
- The Lautenberg Center for General and Tumor Immunology, Department of Immunology and Cancer Research-IMRIC, The Hebrew University-Hadassah Medical School at Ein-Kerem, Jerusalem, Israel
| | - Saleh Khawaled
- The Lautenberg Center for General and Tumor Immunology, Department of Immunology and Cancer Research-IMRIC, The Hebrew University-Hadassah Medical School at Ein-Kerem, Jerusalem, Israel
| | - Zaidoun Salah
- Al Quds-Bard College, Al-Quds University, Al-Bireh, East Jerusalem, Palestine
| | - Lina Jaber
- The Lautenberg Center for General and Tumor Immunology, Department of Immunology and Cancer Research-IMRIC, The Hebrew University-Hadassah Medical School at Ein-Kerem, Jerusalem, Israel
| | - Ahlam Barhoum
- The Lautenberg Center for General and Tumor Immunology, Department of Immunology and Cancer Research-IMRIC, The Hebrew University-Hadassah Medical School at Ein-Kerem, Jerusalem, Israel
| | - Omer Or
- Department of Orthopedics Surgery, Hebrew University Hadassah Medical Center, Jerusalem, Israel
| | - Marco Galasso
- Biosystems Analysis, LTTA, Department of Morphology, Surgery and Experimental Medicine, Università degli Studi, Ferrara, Italy
| | - Kyle C Kurek
- Department of Pathology and Medical Genetics Cumming School of Medicine, University of Calgary, Alberta Children's Hospital & Research Institute, Calgary, AB, Canada
| | - Eylon Yavin
- The Institute for Drug Research, The School of Pharmacy, The Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Rami I Aqeilan
- The Lautenberg Center for General and Tumor Immunology, Department of Immunology and Cancer Research-IMRIC, The Hebrew University-Hadassah Medical School at Ein-Kerem, Jerusalem, Israel.,Department of Cancer Biology & Genetics, The Ohio State University Wexner Medical Center, Columbus, OH
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14
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Villanueva F, Araya H, Briceño P, Varela N, Stevenson A, Jerez S, Tempio F, Chnaiderman J, Perez C, Villarroel M, Concha E, Khani F, Thaler R, Salazar-Onfray F, Stein GS, van Wijnen AJ, Galindo M. The cancer-related transcription factor RUNX2 modulates expression and secretion of the matricellular protein osteopontin in osteosarcoma cells to promote adhesion to endothelial pulmonary cells and lung metastasis. J Cell Physiol 2019; 234:13659-13679. [PMID: 30637720 DOI: 10.1002/jcp.28046] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 12/06/2018] [Indexed: 12/19/2022]
Abstract
Osteosarcomas are bone tumors that frequently metastasize to the lung. Aberrant expression of the transcription factor, runt-related transcription factor 2 (RUNX2), is a key pathological feature in osteosarcoma and associated with loss of p53 and miR-34 expression. Elevated RUNX2 may transcriptionally activate genes mediating tumor progression and metastasis, including the RUNX2 target gene osteopontin (OPN/SPP1). This gene encodes a secreted matricellular protein produced by osteoblasts to regulate bone matrix remodeling and tissue calcification. Here we investigated whether and how the RUNX2/OPN axis regulates lung metastasis of osteosarcoma. Importantly, RUNX2 depletion attenuates lung metastasis of osteosarcoma cells in vivo. Using next-generation RNA-sequencing, protein-based assays, as well as the loss- and gain-of-function approaches in selected osteosarcoma cell lines, we show that osteopontin messenger RNA levels closely correlate with RUNX2 expression and that RUNX2 controls the levels of secreted osteopontin. Elevated osteopontin levels promote heterotypic cell-cell adhesion of osteosarcoma cells to human pulmonary microvascular endothelial cells, but not in the presence of neutralizing antibodies. Collectively, these findings indicate that the RUNX2/OPN axis regulates the ability of osteosarcoma cells to attach to pulmonary endothelial cells as a key step in metastasis of osteosarcoma cells to the lung.
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Affiliation(s)
- Francisco Villanueva
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Hector Araya
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Pedro Briceño
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Nelson Varela
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Department of Medical Technology, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Andres Stevenson
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Sofia Jerez
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Fabian Tempio
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Immunology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Jonas Chnaiderman
- Program of Virology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Carola Perez
- Laboratory Animal Facility, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Milena Villarroel
- Department of Oncology, Hospital Dr. Luis Calvo Mackenna, Santiago, Chile.,National Child Programme of Antineoplastic Drugs (PINDA), Santiago, Chile
| | - Emma Concha
- Department of Oncology, Hospital Dr. Luis Calvo Mackenna, Santiago, Chile
| | - Farzaneh Khani
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.,Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Roman Thaler
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.,Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Flavio Salazar-Onfray
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Immunology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Gary S Stein
- Department of Biochemistry, University of Vermont Cancer Center, The Robert Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Andre J van Wijnen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota.,Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Mario Galindo
- Millennium Institute on Immunology and Immunotherapy, University of Chile, Santiago, Chile.,Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
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15
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Khawaled S, Suh SS, Abdeen SK, Monin J, Distefano R, Nigita G, Croce CM, Aqeilan RI. WWOX Inhibits Metastasis of Triple-Negative Breast Cancer Cells via Modulation of miRNAs. Cancer Res 2019; 79:1784-1798. [PMID: 30622118 DOI: 10.1158/0008-5472.can-18-0614] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 04/30/2018] [Accepted: 01/03/2019] [Indexed: 11/16/2022]
Abstract
Triple-negative breast cancer (TNBC) is a heterogeneous, highly aggressive, and difficult to treat tumor type. The tumor suppressor WWOX spans FRA16D, a common fragile site that is commonly altered in breast cancer. Despite recent progress, the role of WWOX in TNBC metastasis is unknown. Here we report that WWOX inactivation correlates with advanced stages of TNBC and that its levels are frequently altered in TNBC cells. Ectopic restoration of WWOX in WWOX-negative TNBC cells inhibited metastasis while its depletion in WWOX-positive TNBC cells promoted metastasis. WWOX was a negative regulator of c-MYC, which regulated miR-146a expression and consequently fibronectin levels, contributing to an epithelial status of the cell. Treatment of TNBC cells with anti-miR-146a rescued the WWOX antimetastatic phenotype. Moreover, overexpression of MYC in WWOX-expressing TNBC cells overrode WWOX effects on miR-146a and fibronectin levels. Altogether, our data uncover an essential role for WWOX in antagonizing TNBC progression and highlight its potential use as a biomarker for metastasis. SIGNIFICANCE: These findings highlight the mechanism by which the tumor suppressor WWOX regulates metastasis of triple-negative breast cancer.See related commentary by Sharma, p. 1746.
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Affiliation(s)
- Saleh Khawaled
- Lautenberg Center for Immunology and Cancer Research, Hebrew University-Hadassah Medical School, IMRIC, Jerusalem, Israel
| | - Sung Suk Suh
- Department of Bioscience, Mokpo National University, Muan, Republic of Korea
| | - Suhaib K Abdeen
- Lautenberg Center for Immunology and Cancer Research, Hebrew University-Hadassah Medical School, IMRIC, Jerusalem, Israel
| | - Jonathan Monin
- Lautenberg Center for Immunology and Cancer Research, Hebrew University-Hadassah Medical School, IMRIC, Jerusalem, Israel
| | - Rosario Distefano
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, Ohio
| | - Giovanni Nigita
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, Ohio
| | - Carlo M Croce
- Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, Ohio
| | - Rami I Aqeilan
- Lautenberg Center for Immunology and Cancer Research, Hebrew University-Hadassah Medical School, IMRIC, Jerusalem, Israel. .,Department of Cancer Biology and Genetics, Wexner Medical Center, The Ohio State University, Columbus, Ohio
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16
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Tanna M, Aqeilan RI. Modeling WWOX Loss of Function in vivo: What Have We Learned? Front Oncol 2018; 8:420. [PMID: 30370248 PMCID: PMC6194312 DOI: 10.3389/fonc.2018.00420] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 09/10/2018] [Indexed: 12/21/2022] Open
Abstract
The WW domain–containing oxidoreductase (WWOX) gene encompasses a common fragile sites (CFS) known as FRA16D, and is implicated in cancer. WWOX encodes a 46kDa adaptor protein, which contains two N-terminal WW–domains and a catalytic domain at its C–terminus homologous to short–chain dehydrogenase/reductase (SDR) family proteins. A high sequence conservation of WWOX orthologues from insects to rodents and ultimately humans suggest its significant role in physiology and homeostasis. Indeed, data obtained from several animal models including flies, fish, and rodents demonstrate WWOX in vivo requirement and that its deregulation results in severe pathological consequences including growth retardation, post–natal lethality, neuropathy, metabolic disorders, and tumorigenesis. Altogether, these findings set WWOX as an essential protein that is necessary to maintain normal cellular/physiological homeostasis. Here, we review and discuss lessons and outcomes learned from modeling loss of WWOX expression in vivo.
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Affiliation(s)
- Mayur Tanna
- Faculty of Medicine, The Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research, Israel-Canada (IMRIC), Hebrew University of Jerusalem, Jerusalem, Israel
| | - Rami I Aqeilan
- Faculty of Medicine, The Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research, Israel-Canada (IMRIC), Hebrew University of Jerusalem, Jerusalem, Israel.,Department of Cancer Biology & Genetics, Ohio State University Wexner Medical Center, Columbus, OH, United States
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17
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Abstract
Hippo signaling plays critical roles in regulation of tissue homeostasis, organ size, and tumorigenesis by inhibiting YES-associated protein (YAP) and PDZ-binding protein TAZ through MST1/2 and LATS1/2 pathway. It is also engaged in cross-talk with various other signaling pathways, including WNT, BMPs, Notch, GPCRs, and Hedgehog to further modulate activities of YAP/TAZ. Because YAP and TAZ are transcriptional coactivators that lack DNA-binding activity, both proteins must interact with DNA-binding transcription factors to regulate target gene’s expression. To activate target genes involved in cell proliferation, TEAD family members are major DNA-binding partners of YAP/TAZ. Accordingly, YAP/TAZ were originally classified as oncogenes. However, YAP might also play tumor-suppressing role. For example, YAP can bind to DNA-binding tumor suppressors including RUNXs and p73. Thus, YAP might act either as an oncogene or tumor suppressor depending on its binding partners. Here, we summarize roles of YAP depending on its DNA-binding partners and discuss context-dependent functions of YAP/TAZ.
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Affiliation(s)
- Min-Kyu Kim
- Department of Biochemistry, College of Medicine, and Institute for Tumor Research, Chungbuk National University, Cheongju 28644, Korea
| | - Ju-Won Jang
- Department of Biochemistry, College of Medicine, and Institute for Tumor Research, Chungbuk National University, Cheongju 28644, Korea
| | - Suk-Chul Bae
- Department of Biochemistry, College of Medicine, and Institute for Tumor Research, Chungbuk National University, Cheongju 28644, Korea
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18
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Chien MH, Lee WJ, Yang YC, Tan P, Pan KF, Liu YC, Tsai HC, Hsu CH, Wen YC, Hsiao M, Hua KT. N-α-acetyltransferase 10 protein promotes metastasis by stabilizing matrix metalloproteinase-2 protein in human osteosarcomas. Cancer Lett 2018; 433:86-98. [PMID: 29960050 DOI: 10.1016/j.canlet.2018.06.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/21/2018] [Accepted: 06/23/2018] [Indexed: 01/10/2023]
Abstract
N-α-Acetyltransferase 10 protein (Naa10p) mediates N-terminal acetylation of nascent proteins. Oncogenic or tumor suppressive roles of Naa10p were reported in cancers. Here, we report an oncogenic role of Naa10p in promoting metastasis of osteosarcomas. Higher NAA10 transcripts were observed in metastatic osteosarcoma tissues compared to non-metastatic tissues and were also correlated with a worse prognosis of patients. Knockdown and overexpression of Naa10p in osteosarcoma cells respectively led to decreased and increased cell migratory/invasive abilities. Re-expression of Naa10p, but not an enzymatically inactive mutant, relieved suppression of the invasive ability in vitro and metastasis in vivo imposed by Naa10p-knockdown. According to protease array screening, we identified that matrix metalloproteinase (MMP)-2 was responsible for the Naa10p-induced invasive phenotype. Naa10p was directly associated with MMP-2 protein through its acetyltransferase domain and maintained MMP-2 protein stability via NatA complex activity. MMP-2 expression levels were also significantly correlated with Naa10p levels in osteosarcoma tissues. These results reveal a novel function of Naa10p in the regulation of cell invasiveness by preventing MMP-2 protein degradation that is crucial during osteosarcoma metastasis.
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Affiliation(s)
- Ming-Hsien Chien
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Jiunn Lee
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Urology, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chieh Yang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; The Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Peng Tan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ke-Fan Pan
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Cheng Liu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hsiao-Chi Tsai
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chun-Hua Hsu
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan
| | - Yu-Ching Wen
- Department of Urology, School of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Urology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Michael Hsiao
- The Genomics Research Center, Academia Sinica, Taipei, Taiwan; Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuo-Tai Hua
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan.
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19
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Qu G, Ma Z, Tong W, Yang J. LncRNA WWOX‑AS1 inhibits the proliferation, migration and invasion of osteosarcoma cells. Mol Med Rep 2018; 18:779-788. [PMID: 29845204 PMCID: PMC6059707 DOI: 10.3892/mmr.2018.9058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 04/16/2018] [Indexed: 02/06/2023] Open
Abstract
Recently, numerous long non-coding (lnc)RNAs have been revealed as serving important roles in human gene regulation. Previous studies have suggested that aberrant expression of lncRNAs is associated with cancer progression and metastasis. Previous studies have also demonstrated that decreased expression of WW domain-containing oxidoreductase (WWOX) is associated with poor prognosis in numerous cancer types. However, the effect of WWOX antisense RNA 1 (WWOX-AS1) in the development of cancer remains unknown. The aim of the present study was to investigate the role of WWOX-AS1 in osteosarcoma. The expression levels of WWOX-AS1 in human osteosarcoma cell lines and a normal osteoblastic cell line were investigated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The results revealed that WWOX-AS1 expression was downregulated in osteosarcoma tissues. Furthermore, the association between WWOX-AS1 and the prognosis of patients with osteosarcoma was investigated using Kaplan-Meier and log-rank tests. The results suggested that patients exhibiting high WWOX-AS1 expression demonstrated a greater overall survival compared with patients exhibiting low WWOX-AS1 expression. In addition, overexpression and knockdown of WWOX-AS1 was performed using transfection experiments and confirmed by RT-qPCR in MG63 and SAOS2 cells, respectively. The results demonstrated that WWOX-AS1 and WWOX expression were positively correlated. Furthermore, the results of the knockdown and overexpression functional experiments suggested that WWOX-AS1 overexpression inhibited the proliferation, migration and invasion of MG63 cells, and knockdown of WWOX-AS1 enhanced the proliferation, migration and invasion of MG63 cells in SAOS2 cells. In conclusion, the results of the present study suggested that WWOX-AS1 may represent a potential biomarker and therapeutic target for the treatment of osteosarcoma.
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Affiliation(s)
- Gang Qu
- Department of Osteology, The 161th Hospital of People's Liberation Army, Wuhan, Hubei 430010, P.R. China
| | - Zhiqiang Ma
- Department of Osteology, The 161th Hospital of People's Liberation Army, Wuhan, Hubei 430010, P.R. China
| | - Wenxian Tong
- Department of Oncology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430050, P.R. China
| | - Jiahui Yang
- Department of Osteology, The 161th Hospital of People's Liberation Army, Wuhan, Hubei 430010, P.R. China
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20
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Lin YH, Hsiao YH, Wu WJ, Yang SF, Hsu CF, Kang YT, Wang PH. Relationship of genetic variant distributions of WW domain-containing oxidoreductase gene with uterine cervical cancer. Int J Med Sci 2018; 15:1005-1013. [PMID: 30013442 PMCID: PMC6036151 DOI: 10.7150/ijms.25553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/31/2018] [Indexed: 12/11/2022] Open
Abstract
To our knowledge, no study investigates the association of genetic variant distributions of WW domain-containing oxidoreductase (WWOX) gene with development of invasive cancer, clinicopathologic variables and patient survival in uterine cervical cancer for Taiwanese women. We therefore conducted this study to explore the clinical involvements of WWOX single nucleotide polymorphisms (SNPs) in cervical cancer. One hundred and thirty-one patients with cervical invasive cancer and 93 patients with precancerous lesions as well as 316 control women were consecutively enrolled. The genotypic frequencies of WWOX genetic variants rs73569323, rs383362, rs11545028, rs3764340 and rs12918952 were determined by real-time polymerase chain reaction. The results revealed that only WWOX SNP rs3764340 was associated between patients with cervical invasive cancer and normal controls among 5 WWOX genetic variants. Cervical cancer patients with genotypes GA/AA in WWOX SNP rs12918952 were associated with parametrium invasion and pelvic lymph node metastasis. Univariate analysis found that WWOX SNPs rs73569323 and rs11545028 were associated with patient survival, whereas multivariate analysis revealed CT/TT in rs11545028 was the only genetic variant, which could predict better overall survival, among 5 WWOX SNPs in Taiwan. In conclusion, Taiwanese women with CG/GG in WWOX SNP rs3764340 are susceptible to cervical invasive cancer. Cervical cancer patients with GA/AA in rs12918952 tend to have more risk to develop parametrium invasion and pelvic lymph node metastasis. Among 5 WWOX SNPs, rs11545028 is the only genetic variant associated with patient survival, in which CT/TT could predict better overall survival in Taiwanese women.
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Affiliation(s)
- Yu-Hsiang Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yi-Hsuan Hsiao
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Obstetrics and Gynecology, Changhua Christian Hospital, Changhua, Taiwan
| | - Wen-Jun Wu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chun-Fang Hsu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yu-Ting Kang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Po-Hui Wang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Obstetrics and Gynecology, Chung Shan Medical University Hospital, Taichung, Taiwan
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21
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Mo L, Li W, Shi X, Yang Z, Li X, Qin L, Luo Y, Mo W. WWOX suppresses proliferation and induces apoptosis via G2 arrest and caspase 3 pathway in nasopharyngeal carcinoma cells. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:11526-11535. [PMID: 31966508 PMCID: PMC6966073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 10/24/2017] [Indexed: 06/10/2023]
Abstract
BACKGROUND WWOX plays crucial roles in various tumors. However, so far, minimal research into the role of WWOX in the development of nasopharyngeal carcinoma (NPC) has been reported. The present study investigates the effects of WWOX overexpression on cell proliferation, migration, and invasion in human NPC cell line CNE1. MATERIALS AND METHODS A lentiviral vector carrying WWOX was transfected into CNE1 cells. The mRNA abundances of WWOX, MMP9, E-cadherin and WWOX protein were detected using quantitative RT-PCR and Western blotting in the transfected cells compared with the control cells (cells transfected using the empty vector and untransfected cells), respectively. Cell proliferation rates were assessed by plate colony formation assays and methyl thiazolyl tetrazolium (MTT). Cell migration and invasion were tested through wound healing assays and/or transwell migration and invasion assays. Cell cycle progression and apoptosis assays were performed by flow cytometry. The protein abundances of activated fragments of caspase-3, cleaved caspase-3 and AKT, phosphorylated p-AKT (Ser473) were measured using Western blotting. RESULTS Overexpression of WWOX significantly inhibited cell proliferation, migration and invasion and induced apoptosis. Moreover, WWOX overexpression led to cell proliferation inhibition via induction of cell cycle arrest in G2/M phase. WWOX suppressed migration and invasion via downregulation of MMP9 and upregulation of E-cadherin. Meanwhile, WWOX could downregulate the phosphorylation of Akt protein kinase and upregulate cleavage of Caspase-3, contributing to inhibition of proliferation and promotion of apoptosis. CONCLUSION WWOX gene may be a novel target for gene therapy in NPC.
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Affiliation(s)
- Lijun Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Wenchao Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Xiang Shi
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Zheng Yang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Xiaohong Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Liuqun Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Yuzhen Luo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
| | - Wuning Mo
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University Nanning, Guangxi, P. R. China
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22
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Chen Y, Luo X, Xiao Z, Guo J, Cui Z. Exogenous WWOX enhances apoptosis and weakens metastasis in CNE2 nasopharyngeal carcinoma cells through the intrinsic apoptotic pathway. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:10343-10351. [PMID: 31966369 PMCID: PMC6965803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 06/26/2017] [Indexed: 06/10/2023]
Abstract
The WW domain containing oxidoreductase (WWOX) has been postulated to behave as a putative tumor suppressor and that silencing of WWOX expression is linked to the carcinogenesis and progression of various carcinomas. The role of WWOX in nasopharyngeal carcinoma (NPC) remains unclear. Herein, we sought to evaluate the biological feature of WWOX restoration in human CNE2 NPC cells. In vitro experiments manifested that transiently overexpressed WWOX significantly suppressed proliferation as well as invasion and migration of the CNE2 cells. Of note, WWOX-induced apoptosis could be partly reversed by the selective caspase inhibitor, Z-VAD-FMK. Furthermore, immunoblotting analysis indicated that ectopic expression of WWOX could trigger the intrinsic apoptotic signaling pathway characterized by a down-regulation of Bcl-2 and Bcl-xL, and up-regulation of Bax and Cytochrome c along with a remarkable activation of the caspase cascades. Taken together, our data reveal that WWOX behaves as a potent tumor suppressor in CNE2 cells, possibly by enhancing apoptosis and weakening metastasis via the intrinsic apoptotic pathway.
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Affiliation(s)
- Yan Chen
- Laboratory of Biochemistry and Molecular Biology Research, Fujian Provincial Key Laboratory of Tumor Biotherapy, Department of Clinical Laboratory, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital Fuzhou, P. R. China
| | - Xiaoli Luo
- Laboratory of Biochemistry and Molecular Biology Research, Fujian Provincial Key Laboratory of Tumor Biotherapy, Department of Clinical Laboratory, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital Fuzhou, P. R. China
| | - Zhenzhou Xiao
- Laboratory of Biochemistry and Molecular Biology Research, Fujian Provincial Key Laboratory of Tumor Biotherapy, Department of Clinical Laboratory, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital Fuzhou, P. R. China
| | - Junying Guo
- Laboratory of Biochemistry and Molecular Biology Research, Fujian Provincial Key Laboratory of Tumor Biotherapy, Department of Clinical Laboratory, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital Fuzhou, P. R. China
| | - Zhaolei Cui
- Laboratory of Biochemistry and Molecular Biology Research, Fujian Provincial Key Laboratory of Tumor Biotherapy, Department of Clinical Laboratory, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital Fuzhou, P. R. China
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Liu P, Wang M, Li L, Jin T. Correlation between osteosarcoma and the expression of WWOX and p53. Oncol Lett 2017; 14:4779-4783. [PMID: 29085479 PMCID: PMC5649648 DOI: 10.3892/ol.2017.6747] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 08/02/2017] [Indexed: 12/20/2022] Open
Abstract
The objective of this study was to analyze the effect of the expression of WWOX and p53 on the growth of MG-63 osteosarcoma cells and to explore the correlation between osteosarcoma and the expression of WWOX and p53. WWOX and p53-overexpressing MG-63 osteosarcoma cell lines were established by transfection and named the MW and MP cell lines, respectively. Untransfected MG-63 cells (blank control) were used as control. Quantitative polymerase chain reaction (qPCR) and western blot analysis were used to detect the expression of WWOX and wild-type p53 mRNA and protein, respectively. The effects of WWOX and p53 (wild-type) on the activity of MG-63 cells were determined by MTT assay and flow cytometry. The expression of mutant p53 protein in 65 cases of osteosarcoma was detected by immunohistochemistry to analyze the correlation between p53 and the development of osteosarcoma. qPCR showed that WWOX and p53 mRNA was overexpressed in MW and MP cells, respectively. Western blot analysis showed that the levels of WWOX and p53 protein in MW and MP cells were higher than in the blank control group. MTT assay showed that the cell proliferation ability of MW and MP cells was significantly lower than in the blank control group. Flow cytometry showed that 78.49% of MW and 66.76% of MP cells were arrested in the G0/G1 phase. Immunohistochemistry showed that mutant p53 was highly expressed in osteosarcoma, with a positive expression rate of 47.7%. The expression rate was positively correlated with the pathological grade of cancer. In conclusion, WWOX can affect the cell cycle of MG-63 osteosarcoma cells to inhibit cell proliferation, which provides new insights into gene therapy for osteosarcoma. The two types of the p53 gene have different functions in the development of osteosarcoma. Wild-type p53 acts as a tumor suppressor, while mutant p53, which is overexpressed in malignant osteosarcoma, has a carcinogenic effect associated with the degree of osteosarcoma.
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Affiliation(s)
- Pingtao Liu
- Department I of Orthopedics, Jingmen No. 2 People's Hospital, Jingmen, Hubei 448000, P.R. China
| | - Mingyue Wang
- Jingmen Red Cross Blood Center, Jingmen, Hubei 448000, P.R. China
| | - Li Li
- Department I of Orthopedics, Jingmen No. 2 People's Hospital, Jingmen, Hubei 448000, P.R. China
| | - Tao Jin
- Department III of Orthopedics, Jingmen No. 2 People's Hospital, Jingmen, Hubei 448000, P.R. China
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Smida J, Xu H, Zhang Y, Baumhoer D, Ribi S, Kovac M, von Luettichau I, Bielack S, O'Leary VB, Leib-Mösch C, Frishman D, Nathrath M. Genome-wide analysis of somatic copy number alterations and chromosomal breakages in osteosarcoma. Int J Cancer 2017; 141:816-828. [DOI: 10.1002/ijc.30778] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 04/19/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Jan Smida
- Institute of Radiation Biology, Helmholtz Zentrum Munich - German Research Center for Environmental Health; Neuherberg Germany
- Clinical Cooperation Group Osteosarcoma, Helmholtz Zentrum Munich - German Research Center for Environmental Health; Neuherberg Germany
- Pediatric Oncology Center; Department of Pediatrics, Technical University of Munich and Comprehensive Cancer Center; Munich Germany
| | - Hongen Xu
- Department of Bioinformatics; Wissenschaftszentrum Weihenstephan, Technical University of Munich; Freising Germany
| | - Yanping Zhang
- Department of Bioinformatics; Wissenschaftszentrum Weihenstephan, Technical University of Munich; Freising Germany
| | - Daniel Baumhoer
- Bone Tumour Reference Center; Institute of Pathology, University Hospital Basel; Switzerland
| | - Sebastian Ribi
- Bone Tumour Reference Center; Institute of Pathology, University Hospital Basel; Switzerland
| | - Michal Kovac
- Bone Tumour Reference Center; Institute of Pathology, University Hospital Basel; Switzerland
| | - Irene von Luettichau
- Pediatric Oncology Center; Department of Pediatrics, Technical University of Munich and Comprehensive Cancer Center; Munich Germany
| | - Stefan Bielack
- Pediatrics 5 (Oncology, Hematology, Immunology), Klinikum Stuttgart Olgahospital; Stuttgart Germany
| | - Valerie B. O'Leary
- Institute of Radiation Biology, Helmholtz Zentrum Munich - German Research Center for Environmental Health; Neuherberg Germany
| | - Christine Leib-Mösch
- Institute of Virology, Helmholtz Zentrum Munich - German Research Center for Environmental Health; Neuherberg Germany
| | - Dmitrij Frishman
- Department of Bioinformatics; Wissenschaftszentrum Weihenstephan, Technical University of Munich; Freising Germany
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum Munich - German Research Center for Environmental Health; Neuherberg Germany
- St Petersburg State Polytechnic University; St Petersburg Russia
| | - Michaela Nathrath
- Clinical Cooperation Group Osteosarcoma, Helmholtz Zentrum Munich - German Research Center for Environmental Health; Neuherberg Germany
- Pediatric Oncology Center; Department of Pediatrics, Technical University of Munich and Comprehensive Cancer Center; Munich Germany
- Department of Pediatric Hematology and Oncology; Klinikum Kassel; Germany
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25
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Lin W, Zhu X, Yang S, Chen X, Wang L, Huang Z, Ding Y, Huang L, Lv C. MicroRNA-203 inhibits proliferation and invasion, and promotes apoptosis of osteosarcoma cells by targeting Runt-related transcription factor 2. Biomed Pharmacother 2017; 91:1075-1084. [PMID: 28525948 DOI: 10.1016/j.biopha.2017.05.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 04/29/2017] [Accepted: 05/06/2017] [Indexed: 12/12/2022] Open
Abstract
Accumulating evidence indicates that microRNA-203 (miR-203) is abnormally expressed in many human tumor tissues and significantly associated with the occurrence, development and clinical outcomes of human tumors. The aim of this study was to determine the target genes and functional significance of miR-203 in osteosarcoma cells. We found reduced expression of miR-203 in osteosarcoma tissues and cells (MG63 and U2-OS) compared with the adjacent normal tissues and normal osteoblastic cells (hFOB1.19), respectively. In vitro studies further demonstrated that exogenous miR-203 overexpression inhibited osteosarcoma cell proliferation and invasion, and promoted apoptosis. At the molecular level, our results confirmed that apoptosis, cell cycle and invasion-related proteins were regulated by miR-203. Our findings also revealed that Runt-related transcription factor 2 (RUNX2) was directly negatively regulated by miR-203. These results suggested that miR-203 may function as a tumor suppressor and may therefore have therapeutic potential in the treatment of human osteosarcoma.
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Affiliation(s)
- Wenjun Lin
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Xiongbai Zhu
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Shengwu Yang
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Xin Chen
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Lu Wang
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Zhengxiang Huang
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Yewei Ding
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Lintuo Huang
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Chen Lv
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
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26
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Long non-coding RNA PARTICLE bridges histone and DNA methylation. Sci Rep 2017; 7:1790. [PMID: 28496150 PMCID: PMC5431818 DOI: 10.1038/s41598-017-01875-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/11/2017] [Indexed: 01/09/2023] Open
Abstract
PARTICLE (Gene PARTICL- ‘Promoter of MAT2A-Antisense RadiaTion Induced Circulating LncRNA) expression is transiently elevated following low dose irradiation typically encountered in the workplace and from natural sources. This long non-coding RNA recruits epigenetic silencers for cis-acting repression of its neighbouring Methionine adenosyltransferase 2A gene. It now emerges that PARTICLE operates as a trans-acting mediator of DNA and histone lysine methylation. Chromatin immunoprecipitation sequencing (ChIP-seq) and immunological evidence established elevated PARTICLE expression linked to increased histone 3 lysine 27 trimethylation. Live-imaging of dbroccoli-PARTICLE revealing its dynamic association with DNA methyltransferase 1 was confirmed by flow cytometry, immunoprecipitation and direct competitive binding interaction through electrophoretic mobility shift assay. Acting as a regulatory docking platform, the long non-coding RNA PARTICLE serves to interlink epigenetic modification machineries and represents a compelling innovative component necessary for gene silencing on a global scale.
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Decreased WWOX expression promotes angiogenesis in osteosarcoma. Oncotarget 2017; 8:60917-60932. [PMID: 28977834 PMCID: PMC5617394 DOI: 10.18632/oncotarget.17126] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 03/30/2017] [Indexed: 11/25/2022] Open
Abstract
WWOX (WW domain-containing oxidoreductase) is known to be an important tumor suppressor in cancer. In this study, we used samples from 201 osteosarcoma patients to investigate the effects of WWOX on angiogenesis and invasion. WWOX levels were negatively correlated with RUNX2 and VEGF levels, but were not correlated with OPN levels. Among the clinicopathological characteristics examined, WWOX was associated only with response to neoadjuvant chemotherapy, and its expression in osteosarcoma tissues was a predictor of disease-free survival. WWOX promoted apoptosis and inhibited invasion and expression of bcl-2, OPN, RUNX2, and VEGF in osteosarcoma cells in vitro. In MG-63 cells, bcl-2 increased VEGF expression, while RUNX2 increased VEGF and OPN expression. Administration of DNA methylation inhibitors increased WWOX expression in MG-63 cells and methylation of WWOX gene promoter CpG island in the osteosarcoma of patients was associated with suppression of WWOX expression. Overexpression of WWOX in osteosarcoma cells inhibited tube formation in co-cultured HUVEC cells, and high WWOX expression was associated with decreased microvessel density (MVD). These results suggest that reduced WWOX expression in osteosarcoma inhibits apoptosis, promotes invasion and increases MVD.
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28
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Singla S, Chen J, Sethuraman S, Sysol JR, Gampa A, Zhao S, Machado RF. Loss of lung WWOX expression causes neutrophilic inflammation. Am J Physiol Lung Cell Mol Physiol 2017; 312:L903-L911. [PMID: 28283473 DOI: 10.1152/ajplung.00034.2017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/01/2017] [Accepted: 03/02/2017] [Indexed: 12/18/2022] Open
Abstract
The tumor suppressor WW domain-containing oxidoreductase (WWOX) exhibits regulatory interactions with an array of transcription factors and signaling molecules that are positioned at the well-known crossroads between inflammation and cancer. WWOX is also subject to downregulation by genotoxic environmental exposures, making it of potential interest to the study of lung pathobiology. Knockdown of lung WWOX expression in mice was observed to cause neutrophil influx and was accompanied by a corresponding vascular leak and inflammatory cytokine production. In cultured human alveolar epithelial cells, loss of WWOX expression resulted in increased c-Jun- and IL-8-dependent neutrophil chemotaxis toward cell monolayers. WWOX was observed to directly interact with c-Jun in these cells, and its absence resulted in increased nuclear translocation of c-Jun. Finally, inhibition of the c-Jun-activating kinase JNK abrogated the lung neutrophil influx observed during WWOX knockdown in mice. Altogether, these observations represent a novel mechanism of pulmonary neutrophil influx that is highly relevant to the pathobiology and potential treatment of a number of different lung inflammatory conditions.
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Affiliation(s)
- Sunit Singla
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois, Chicago, Illinois
| | - Jiwang Chen
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois, Chicago, Illinois
| | - Shruthi Sethuraman
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois, Chicago, Illinois
| | - Justin R Sysol
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois, Chicago, Illinois
| | - Amulya Gampa
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois, Chicago, Illinois
| | - Shuangping Zhao
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois, Chicago, Illinois
| | - Roberto F Machado
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, Department of Medicine, University of Illinois, Chicago, Illinois
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Tong W, Yang L, Yu Q, Yao J, He A. A new tumor suppressor lncRNA RP11-190D6.2 inhibits the proliferation, migration, and invasion of epithelial ovarian cancer cells. Onco Targets Ther 2017; 10:1227-1235. [PMID: 28280357 PMCID: PMC5338983 DOI: 10.2147/ott.s125185] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
At present, a large number of long noncoding RNAs (lncRNAs) from the human genome have been discovered. Meanwhile, emerging evidence has indicated that lncRNAs could play a critical role in the regulation of cellular processes such as cancer progression and metastasis. However, the functions of some new lncRNAs in the complex transcriptional process are mostly unknown at present. Existing studies suggest that loss of WW domain-containing oxidoreductase (WWOX) expression is linked with poor prognosis in numerous cancers, including epithelial ovarian cancer (EOC). However, the functional role of its antisense transcript RP11-190D6.2 is not clear to date. In this study, WWOX antisense transcript RP11-190D6.2 was analyzed specifically in EOC cells using real-time polymerase chain reaction and gain-/loss-of-function studies. We found that RP11-190D6.2 expression was positively correlated with WWOX expression. The RP11-190D6.2 expression was markedly downregulated in tumor tissues compared with normal tissues, but the RP11-190D6.2 expression was significantly downregu-lated in four EOC cell lines compared with human ovarian surface epithelial cell line. RP11-190D6.2 overexpression resulted in the increase of WWOX expression, whereas its knockdown led to the decrease of WWOX expression. We also found that RP11-190D6.2 was restored by 5-aza-2′-deoxycytidine treatment in EOC. In addition, the RP11-190D6.2 overexpression and knockdown experiments revealed that RP11-190D6.2 overexpression inhibited proliferation, migration, and invasion abilities in HO8910-PM cells, whereas RP11-190D6.2 knockdown in HEY-A8 cells had the opposite effect. The analyses in EOC implicate that RP11-190D6.2 may play a pivotal role in the regulation of tumor metastasis, suggesting that RP11-190D6.2 may serve as a potential biomarker and therapeutic target for EOC.
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Affiliation(s)
- Wenxian Tong
- Department of Oncology, The Fifth Hospital of Wuhan
| | - Liu Yang
- Department of Cancer Biotherapy Center, Hubei Cancer Hospital, Wuhan
| | - Qiang Yu
- Department of Hepatobiliary Surgery
| | - Jie Yao
- Laboratory for Cancer Research, Cancer Center, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Anbing He
- Department of Oncology, The Fifth Hospital of Wuhan
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30
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WWOX inhibits the invasion of lung cancer cells by downregulating RUNX2. Cancer Gene Ther 2016; 23:433-438. [PMID: 27834355 DOI: 10.1038/cgt.2016.59] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 10/05/2016] [Accepted: 10/07/2016] [Indexed: 02/06/2023]
Abstract
The WW domain-containing oxidoreductase (WWOX) is a tumor suppressor that is lost or decreased in most human tumors. The role of WWOX in human lung carcinoma invasion is still not clear. This study aimed to elucidate the potential role of WWOX in lung cancer cell invasion. WWOX mRNA levels in human lung cancers and lung cancer cell lines were assayed by quantitative real-time PCR. WWOX in lung cancer cell lines was manipulated by transfection of expression vector or small interfering RNA. Cell migration and invasion were assessed by wound healing and/or transwell migration and invasion assays. The protein levels of WWOX, E-cadherin and RUNX2 were analyzed by western blot or immunofluorescence. WWOX expression is inversely correlated to invasiveness of lung cancer. WWOX overexpression in highly invasive H1299 cells reduced cell motility and invasiveness, and inhibited the expression of RUNX2 and its target gene matrix metalloproteinase-9 (MMP-9). Silencing WWOX in less invasive NL9980 cells resulted in opposite effects. Overexpressing RUNX2 in H1299 or silencing RUNX2 in NL9980 cells reversed the effects of WWOX. These results suggested that WWOX inhibited the invasive phenotype of lung cancer through downregulating the expression of RUNX2.
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31
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Gao K, Yin J, Dong J. Deregulated WWOX is involved in a negative feedback loop with microRNA-214-3p in osteosarcoma. Int J Mol Med 2016; 38:1850-1856. [PMID: 27840941 DOI: 10.3892/ijmm.2016.2800] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 10/31/2016] [Indexed: 11/05/2022] Open
Abstract
WW domain-containing oxidoreductase (WWOX) is frequently inactivated in human osteosarcoma, and the restoration of its expression can suppress tumorigenicity in WWOX-negative OS cells. However, its regulatory mechanisms remain to be fully elucidated. In the present study, we demonstrate that WWOX is downregulated and that it regulates proliferation and epithelial-to-mesenchymal transition (EMT)-associated protein expression in osteosarcoma. As shown by our results, WWOX overexpression by transfection with WWOX overexpression plasmids suppressed the proliferation, migration and invasion of osteosarcoma MG63 cells (as shown by MTT and migration and invasion assays). The silencing of microRNA (miR)‑214‑3p by transfection with anti-miR‑14‑3p upregulated WWOX protein expression and also inhibited the proliferation, migration and invasion of osteosarcoma cells. Additionally, we found that WWOX negatively regulated miR‑214‑3p and miR‑10b expression. Our findings define a negative feedback pathway in control of WWOX and miR‑214‑3p expression, thus providing novel molecular targets for the treatment of osteosarcoma.
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Affiliation(s)
- Kaituo Gao
- Department of Orthopedics, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
| | - Jijuan Yin
- Department of Orthopedics, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
| | - Jian Dong
- Department of Orthopedics, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
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32
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Abstract
Osteosarcoma (OS) is a deadly bone malignancy affecting mostly children and adolescents. OS has outstandingly complex genetic alterations likely due to p53-independent genomic instability. Based on analysis of recent published research we claim existence of various genetic mechanisms of osteosarcomagenesis conferring great variability to different OS properties including metastatic potential. We also propose a model explaining how diverse genetic mechanisms occur and providing a framework for future research. P53-independent preexisting genomic instability, which precedes and frequently causes TP53 genetic alterations, is central in our model. In addition, our analyses reveal a possible cooperation between aberrantly activated HIF-1α and AP-1 genetic pathways in OS metastasis. We also review the involvement of noncoding RNA genes in OS metastasis.
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Affiliation(s)
- Vadim V Maximov
- Lautenberg Center for Immunology & Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel
| | - Rami I Aqeilan
- Lautenberg Center for Immunology & Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel.,Department of Molecular Virology, Immunology & Medical Genetics, Wexner Medical Center, Ohio State University, Columbus, OH 43210, USA
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33
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Zhang C, Long F, Wan J, Hu Y, He H. MicroRNA-205 acts as a tumor suppressor in osteosarcoma via targeting RUNX2. Oncol Rep 2016; 35:3275-84. [PMID: 27035764 DOI: 10.3892/or.2016.4700] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/12/2015] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRs) are a class of small non-coding RNAs, and negatively regulate gene expression through directly binding to the 3'-untranslational region (UTR) of their target mRNA, which further leads to translational repression or mRNA degradation. Recently, various miRs have been implicated in the development and progression of osteosarcoma (OS). However, the underlying mechanism has not been fully uncovered. Our study aimed to reveal the exact role of miR-205 in OS, as well as the regulatory mechanism. In this study, we found that the expression of miR-205 was significantly reduced in a total of 34 OS tissue specimens compared to their matched adjacent normal tissues. Besides, it was also remarkably downregulated in OS cell lines (Saos-2, U2OS, SW1353, and MG63) compared to human osteoblast hFOB1.19 cells. Overexpression of miR-205 caused a significant decrease in the proliferation, migration and invasion of MG63 and U2OS cells. Runt-related transcription factor 2 (RUNX2) was further identified as a target gene of miR-205. Moreover, the mRNA and protein expression of RUNX2 was reduced after miR-205 overexpression, but increased after knockdown of miR-205 in MG63 and U2OS cells. Furthermore, overexpression of RUNX2 effectively reversed the suppressive effect of miR-205 on the proliferation, migration, and invasion of MG63 and U2OS cells. The RUNX2 level was significantly increased in OS tissues compared to their matched adjacent normal tissues, as well as in OS cell lines compared to hFOB1.19 cells. In addition, the RUNX2 level was reversely correlated with the miR-205 level in OS tissues. Taken together, our data demonstrate that miR-205 acts as a tumor suppressor in OS via directly targeting RUNX2. Therefore, we suggest that the miR-205/RUNX2 axis may serve as a potential target for the treatment of OS.
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Affiliation(s)
- Can Zhang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Feng Long
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jun Wan
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Yihe Hu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Hongbo He
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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Zhang N, Jiang Z, Ren W, Yuan L, Zhu Y. Association of polymorphisms in WWOX gene with risk and outcome of osteosarcoma in a sample of the young Chinese population. Onco Targets Ther 2016; 9:807-13. [PMID: 26929649 PMCID: PMC4767064 DOI: 10.2147/ott.s99106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The WW domain-containing oxidoreductase (WWOX) gene is a tumor suppressor gene, the abnormal expression of which will lead to osteosarcoma tumorigenesis. Polymorphisms of the WWOX gene are associated with the risk of several malignancies. We hypothesized that genetic variations in the WWOX gene were related to osteosarcoma risk and outcome. In this case-control study, we recruited 276 young osteosarcoma patients and 286 controls from the East Chinese population and genotyped seven tag single-nucleotide polymorphisms (SNPs) of the WWOX gene (rs10220974C>T, rs12918952G>A, rs3764340C>G, rs1074963C>G, rs383362G>T, rs1424110A>G, and rs12828A>G). We discovered that two SNPs (rs3764340C>G and rs383362G>T) were associated with osteosarcoma risk. The CG genotype and dominant model of rs3764340 indicated elevated risk of osteosarcoma, and similar results were found for rs383362. Furthermore, rs3754340C>G was also related to grade and metastasis risk of osteosarcoma. Taken together, our results provide the first evidence that WWOX gene polymorphisms have the potential to be predictive factors for assessing risk and outcome of osteosarcoma.
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Affiliation(s)
- Niannian Zhang
- Department of Orthopedics, Shaoxing Shangyu People's Hospital, Shaoxing, People's Republic of China
| | - Zhenghui Jiang
- Division of Musculoskeletal Oncology, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China; Department of Orthopedics, The First People's Hospital of Wenling, Wenling, People's Republic of China
| | - Weifeng Ren
- Department of Orthopedics, Shaoxing Shangyu People's Hospital, Shaoxing, People's Republic of China
| | - Li Yuan
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, People's Republic of China
| | - Yangyi Zhu
- Department of Orthopedics, Shaoxing Shangyu People's Hospital, Shaoxing, People's Republic of China
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