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Zhang Y, Liu Y, Wu L, Chen T, Jiao H, Ruan Y, Zhou P, Zhang Y. Expression of SOX4 Significantly Predicts the Risk of Lymph Node Metastasis for Patients With Early-Stage Esophageal Squamous Cell Carcinoma. J Transl Med 2024; 104:102042. [PMID: 38431117 DOI: 10.1016/j.labinv.2024.102042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/12/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024] Open
Abstract
Esophageal squamous cell carcinoma stands as a notably aggressive malignancy within the digestive system. In cases of early esophageal cancer without lymph node metastasis, endoscopic surgical resection offers a viable alternative, often resulting in improved patient quality of life. However, the paucity of methods to preoperatively ascertain lymph node involvement complicates surgical planning. SOX4 gene was previously found to be highly associated with invasive metastasis in our work through single-cell RNA sequencing on 5 paired tumor/peritumor tissues. This research included the collection of 124 tissue samples from 106 patients (106 tumor and 18 lymph node specimens). Samples were methodically arranged into a tissue microarray and treated with immunohistochemical staining. Statistical analysis was conducted to assess the relationship between them. In the univariate analysis, 3 factors were identified as statistically significant in relation to lymph node metastasis: T category (P = .014), vascular invasion (P < .001), and SOX4 intensity (P = .001). Additionally, when evaluating SOX4 intensity alongside other clinical indicators, SOX4 was shown to independently influence lymph node metastasis. Further, the multivariate analysis revealed that vascular invasion (P < .001) and SOX4 intensity (P = .003) were significantly associated with lymph node metastasis, exhibiting hazard ratios of 10.174 and 7.142, respectively. The results of our study indicate that both SOX4 expression and vascular invasion serve as predictors of lymph node metastasis in patients diagnosed with category T1 esophageal squamous cell carcinoma, underscoring the potential utility of SOX4 in prognostic evaluations.
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Affiliation(s)
- Yifei Zhang
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
| | - Yanbo Liu
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
| | - Linfeng Wu
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
| | - Tianyin Chen
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China
| | - Heng Jiao
- Department of Thoracic Surgery, Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yuanyuan Ruan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China; Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Pinghong Zhou
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China.
| | - Yiqun Zhang
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China; Shanghai Collaborative Innovation Center of Endoscopy, Shanghai, China.
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2
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Bahmad HF, Thiravialingam A, Sriganeshan K, Gonzalez J, Alvarez V, Ocejo S, Abreu AR, Avellan R, Arzola AH, Hachem S, Poppiti R. Clinical Significance of SOX10 Expression in Human Pathology. Curr Issues Mol Biol 2023; 45:10131-10158. [PMID: 38132479 PMCID: PMC10742133 DOI: 10.3390/cimb45120633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/10/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
The embryonic development of neural crest cells and subsequent tissue differentiation are intricately regulated by specific transcription factors. Among these, SOX10, a member of the SOX gene family, stands out. Located on chromosome 22q13, the SOX10 gene encodes a transcription factor crucial for the differentiation, migration, and maintenance of tissues derived from neural crest cells. It plays a pivotal role in developing various tissues, including the central and peripheral nervous systems, melanocytes, chondrocytes, and odontoblasts. Mutations in SOX10 have been associated with congenital disorders such as Waardenburg-Shah Syndrome, PCWH syndrome, and Kallman syndrome, underscoring its clinical significance. Furthermore, SOX10 is implicated in neural and neuroectodermal tumors, such as melanoma, malignant peripheral nerve sheath tumors (MPNSTs), and schwannomas, influencing processes like proliferation, migration, and differentiation. In mesenchymal tumors, SOX10 expression serves as a valuable marker for distinguishing between different tumor types. Additionally, SOX10 has been identified in various epithelial neoplasms, including breast, ovarian, salivary gland, nasopharyngeal, and bladder cancers, presenting itself as a potential diagnostic and prognostic marker. However, despite these associations, further research is imperative to elucidate its precise role in these malignancies.
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Affiliation(s)
- Hisham F. Bahmad
- The Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA;
| | - Aran Thiravialingam
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Karthik Sriganeshan
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Jeffrey Gonzalez
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Veronica Alvarez
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Stephanie Ocejo
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Alvaro R. Abreu
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Rima Avellan
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Alejandro H. Arzola
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA; (A.T.); (K.S.); (J.G.); (S.O.); (A.R.A.); (R.A.); (A.H.A.)
| | - Sana Hachem
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon;
| | - Robert Poppiti
- The Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA;
- Department of Pathology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
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3
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Arenas AM, Ruiz-Jiménez JM, López-Hidalgo JL, Sanjuán-Hidalgo J, Medina PP. Defining the first bona fide cell model for SMARCA4-deficient, undifferentiated tumor. J Pathol 2023; 261:5-10. [PMID: 37352131 DOI: 10.1002/path.6141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/23/2023] [Accepted: 05/11/2023] [Indexed: 06/25/2023]
Abstract
The World Health Organization's tumor classification guidelines are frequently updated and renewed as knowledge of cancer biology advances. For instance, in 2021, a novel lung tumor subtype named SMARCA4-deficient, undifferentiated tumor (SMARCA4-dUT, code 8044/3) was included. To date, there is no defined cell model for SMARCA4-dUT that could be used to help thoracic clinicians and researchers in the study of this newly defined tumor type. As this tumor type was recently described, it is feasible that some cell models formerly classified as lung adenocarcinoma (LUAD) could now be better classified as SMARCA4-dUT. Thus, in this work, we aimed to identify a bona fide cell model for the experimental study of SMARCA4-dUT. We compared the differential expression profiles of 36 LUAD-annotated cell lines and 38 cell lines defined as rhabdoid in repositories. These comparative results were integrated with the mutation and expression profiles of the SWI/SNF complex members, and they were surveyed for the presence of the SMARCA4-dUT markers SOX2, SALL4, and CD34, measured by RT-qPCR and western blotting. Finally, the cell line with the paradigmatic SMARCA4-dUT markers was engrafted into immunocompromised mice to assess the histological morphology of the formed tumors and compare them with those formed by a bona fide LUAD cancer cell line. NCI-H522, formerly classified as LUAD, displayed expression profiles nearer to rhabdoid tumors than LUAD tumors. Furthermore, NCI-H522 has most of the paradigmatic features of SMARCA4-dUT: hemizygous inactivating mutation of SMARCA4, severe SMARCA2 downregulation, and high-level expression of stem cell markers SOX2 and SALL4. In addition, the engrafted tumors of NCI-H522 did not display a typical differentiated glandular structure as other bona fide LUAD cell lines (A549) do but had rather a largely undifferentiated morphology, characteristic of SMARCA4-dUT. Thus, we propose the NCI-H522 as the first bona fide cell line model of SMARCA4-dUT. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Alberto M Arenas
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada, Spain
- GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, Granada, Spain
- Health Research Institute of Granada (ibs.Granada), Granada, Spain
| | - José Manuel Ruiz-Jiménez
- GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, Granada, Spain
- FIBAO, Fundación Pública para la Investigación Biosanitaria de Andalucía Oriental Alejandro Otero, Granada, Spain
| | - Javier L López-Hidalgo
- Health Research Institute of Granada (ibs.Granada), Granada, Spain
- Hospital Universitario Clínico San Cecilio (HUCSC), Granada, Spain
| | - Juan Sanjuán-Hidalgo
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada, Spain
- GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, Granada, Spain
| | - Pedro P Medina
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada, Spain
- GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, Granada, Spain
- Health Research Institute of Granada (ibs.Granada), Granada, Spain
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4
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Otálora-Otálora BA, López-Kleine L, Rojas A. Lung Cancer Gene Regulatory Network of Transcription Factors Related to the Hallmarks of Cancer. Curr Issues Mol Biol 2023; 45:434-464. [PMID: 36661515 PMCID: PMC9857713 DOI: 10.3390/cimb45010029] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 01/06/2023] Open
Abstract
The transcriptomic analysis of microarray and RNA-Seq datasets followed our own bioinformatic pipeline to identify a transcriptional regulatory network of lung cancer. Twenty-six transcription factors are dysregulated and co-expressed in most of the lung cancer and pulmonary arterial hypertension datasets, which makes them the most frequently dysregulated transcription factors. Co-expression, gene regulatory, coregulatory, and transcriptional regulatory networks, along with fibration symmetries, were constructed to identify common connection patterns, alignments, main regulators, and target genes in order to analyze transcription factor complex formation, as well as its synchronized co-expression patterns in every type of lung cancer. The regulatory function of the most frequently dysregulated transcription factors over lung cancer deregulated genes was validated with ChEA3 enrichment analysis. A Kaplan-Meier plotter analysis linked the dysregulation of the top transcription factors with lung cancer patients' survival. Our results indicate that lung cancer has unique and common deregulated genes and transcription factors with pulmonary arterial hypertension, co-expressed and regulated in a coordinated and cooperative manner by the transcriptional regulatory network that might be associated with critical biological processes and signaling pathways related to the acquisition of the hallmarks of cancer, making them potentially relevant tumor biomarkers for lung cancer early diagnosis and targets for the development of personalized therapies against lung cancer.
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Affiliation(s)
- Beatriz Andrea Otálora-Otálora
- Grupo de Investigación INPAC, Unidad de Investigación, Fundación Universitaria Sanitas, Bogotá 110131, Colombia
- Facultad de Medicina, Universidad Nacional de Colombia, Bogotá 11001, Colombia
| | - Liliana López-Kleine
- Departamento de Estadística, Universidad Nacional de Colombia, Bogotá 11001, Colombia
- Correspondence: (L.L.-K.); (A.R.)
| | - Adriana Rojas
- Facultad de Medicina, Instituto de Genética Humana, Pontificia Universidad Javeriana, Bogotá 110211, Colombia
- Correspondence: (L.L.-K.); (A.R.)
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Chang F, Li J, Sun Q, Wei S, Song Y. Hsa_circ_0017639 regulates cisplatin resistance and tumor growth via acting as a miR-1296-5p molecular sponge and modulating sine oculis homeobox 1 expression in non-small cell lung cancer. Bioengineered 2022; 13:8806-8822. [PMID: 35287543 PMCID: PMC9161884 DOI: 10.1080/21655979.2022.2053810] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cisplatin (DDP)-induced chemoresistance is an important reason for the failure of non-small cell lung cancer (NSCLC) treatment. Circular RNAs (circRNAs) participate in the chemoresistance of diverse cancers. However, the function of hsa_circ_0017639 (circ_0017639) in the DDP resistance of NSCLC is unclear. Forty-one NSCLC samples (21 DDP-resistant samples and 20 DDP-sensitive samples) were utilized in the research. The relative expression levels of some genes were determined by real-time quantitative polymerase chain reaction (RT-qPCR). 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay for half-maximal inhibitory concentration (IC50) value of DDP and cell viability, colony formation and 5-ethynyl-2’-deoxyuridine (EDU) assays for cell proliferation, flow cytometry assay for cell apoptosis, transwell assay for cell invasion and wound-healing assay for cell migration were performed. The regulation mechanism of circ_0017639 was demonstrated by a dual-luciferase reporter assay. We observed higher levels of circ_0017639 in DDP-resistant NSCLC samples and cells. Functionally, circ_0017639 silencing decreased tumor growth and elevated DDP sensitivity in vivo and induced apoptosis, repressed proliferation, invasion, and migration of DDP-resistant NSCLC cells in vitro. Mechanically, circ_0017639 modulated sine oculis homeobox 1 (SIX1) expression via sponging microRNA (miR)-1296-5p. Also, miR-1296-5p inhibitor restored circ_0017639 knockdown-mediated impacts on cell DDP resistance in DDP-resistant NSCLCs. Furthermore, SIX1 overexpression counteracted the inhibiting impact of miR-1296-5p upregulation on DDP resistance and malignant phenotypes of DDP-resistant NSCLC cells. In conclusion, circ_0017639 conferred DDP resistance and promoted tumor growth via elevating SIX1 expression through sequestering miR-1296-5p in NSCLC, providing a new mechanism for understanding the chemoresistance and progression of NSCLC.
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Affiliation(s)
- Feiyun Chang
- Department of Thoracic Surgery, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, 030013, Shanxi, China
| | - Jiali Li
- Department of Thoracic Surgery, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, 030013, Shanxi, China
| | - Quan Sun
- Department of Thoracic Surgery, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, 030013, Shanxi, China
| | - Shuqing Wei
- Department of Thoracic Surgery, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, 030013, Shanxi, China
| | - Yongming Song
- Department of Thoracic Surgery, Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, 030013, Shanxi, China
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6
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miR-335-laden B Cell-Derived Extracellular Vesicles Promote SOX4-Dependent Apoptosis in Human Multiple Myeloma Cells. J Pers Med 2021; 11:jpm11121240. [PMID: 34945712 PMCID: PMC8707697 DOI: 10.3390/jpm11121240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/12/2021] [Accepted: 11/18/2021] [Indexed: 12/03/2022] Open
Abstract
Multiple myeloma (MM) is characterized by the accumulation of malignant plasma cells in the bone marrow. Despite novel therapies, MM still remains an incurable cancer and new strategies are needed. Increased expression of the transcription factor Sex-determining region Y-related high-mobility-group box transcription factor 4 (SOX4) has been correlated with tumor development and progression through a variety of distinct processes, including inhibition of apoptosis, increased cell invasion and metastasis, and induction and maintenance of cancer-initiating cells. The role of SOX4 in MM is largely unknown. Since SOX4 is a known target of miR-335, we used miR-335 to assess whether SOX4 modulation could promote apoptosis in MM cells. Using an MM cell model we show that miR-335 acts both on SOX4-related genes (AKT, PI3K) and hypoxia-inducible factor 1-alpha (Hif1-α). In addition, we show miR-335-laden extracellular vesicles induced in B cells (iEVs) are also effective in targeting SOX4, causing apoptosis. Collectively, we propose that miR-335-laden iEVs could be developed as a novel form of gene therapy in MM.
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Seok J, Gil M, Dayem AA, Saha SK, Cho SG. Multi-Omics Analysis of SOX4, SOX11, and SOX12 Expression and the Associated Pathways in Human Cancers. J Pers Med 2021; 11:jpm11080823. [PMID: 34442467 PMCID: PMC8400412 DOI: 10.3390/jpm11080823] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/06/2021] [Accepted: 08/20/2021] [Indexed: 01/08/2023] Open
Abstract
The Sry-related HMG BOX (SOX) gene family encodes transcription factors containing highly conserved high-mobility group domains that bind to the minor groove in DNA. Although some SOX genes are known to be associated with tumorigenesis and cancer progression, their expression and prognostic value have not been systematically studied. We performed multi-omic analysis to investigate the expression of SOX genes in human cancers. Expression and phylogenetic tree analyses of the SOX gene family revealed that the expression of three closely related SOX members, SOX4, SOX11, and SOX12, was increased in multiple cancers. Expression, mutation, and alteration of the three SOX members were evaluated using the Oncomine and cBioPortal databases, and the correlation between these genes and clinical outcomes in various cancers was examined using the Kaplan–Meier, PrognoScan, and R2 database analyses. The genes commonly correlated with the three SOX members were categorized in key pathways related to the cell cycle, mitosis, immune system, and cancer progression in liver cancer and sarcoma. Additionally, functional protein partners with three SOX proteins and their probable signaling pathways were explored using the STRING database. This study suggests the prognostic value of the expression of three SOX genes and their associated pathways in various human cancers.
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Affiliation(s)
| | | | | | | | - Ssang-Goo Cho
- Correspondence: ; Tel.: +82-2-450-4207 or +82-2-444-4207
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8
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Xu X, Zong K, Wang X, Dou D, Lv P, Zhang Z, Li H. miR-30d suppresses proliferation and invasiveness of pancreatic cancer by targeting the SOX4/PI3K-AKT axis and predicts poor outcome. Cell Death Dis 2021; 12:350. [PMID: 33824274 PMCID: PMC8024348 DOI: 10.1038/s41419-021-03576-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 02/27/2021] [Accepted: 03/02/2021] [Indexed: 12/28/2022]
Abstract
Aberrant expression of miR-30d is associated with the development and progression of several human cancers. However, its biological roles and underlying mechanisms in pancreatic cancer are largely unknown. The expression of miR-30d in pancreatic cancer was evaluated in public databases and further valuated by real-time quantitative PCR, western blot, and immunohistochemistry in a cohort of pancreatic cancer patients. The role of miR-30d in the proliferation and metastasis of pancreatic cancer cells was determined using in vitro and in vivo assays. Bioinformatics analyses were performed to examine potential target genes of miR-30d. Luciferase reporter assay and functional rescue experiments were used to elucidate the mechanisms of miR-30d. miR-30d was found frequently decreased in pancreatic cancer compared with nontumor tissues, and downregulation of miR-30d predicted poor prognosis and early relapse of pancreatic cancer patients. Overexpression of miR-30d significantly repressed the growth and metastasis of pancreatic cancer cells both in vitro and in vivo. Bioinformatics analyses identified sex-determining region Y-box 4 (SOX4) as a target gene of miR-30d. Mechanically, miR-30d exerted its tumor suppressive effect by directly targeting SOX4, which caused inhibition of the PI3K-AKT signaling pathway. Overexpression of SOX4 partially antagonized the inhibitory effects of miR-30d. Our study demonstrated that dysregulation of the miR-30d/SOX4/PI3K-AKT axis promotes the development and progression of pancreatic cancer. These findings suggest miR-30d as a promising and reliable therapeutic target for pancreatic cancer.
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Affiliation(s)
- Xiaodong Xu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe east Road, 450000, Zhengzhou, China
| | - Ke Zong
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe east Road, 450000, Zhengzhou, China
| | - Xinxing Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe east Road, 450000, Zhengzhou, China
| | - Dongwei Dou
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe east Road, 450000, Zhengzhou, China
| | - Pengwei Lv
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe east Road, 450000, Zhengzhou, China.
| | - Zhe Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe east Road, 450000, Zhengzhou, China.
| | - Hongwen Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe east Road, 450000, Zhengzhou, China.
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Shang J, Zheng Y, Mo J, Wang W, Luo Z, Li Y, Chen X, Zhang Q, Wu K, Liu W, Wu J. Sox4 represses host innate immunity to facilitate pathogen infection by hijacking the TLR signaling networks. Virulence 2021; 12:704-722. [PMID: 33517839 PMCID: PMC7894441 DOI: 10.1080/21505594.2021.1882775] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Toll-like receptors (TLRs) are essential for the protection of the host from pathogen infections by initiating the integration of contextual cues to regulate inflammation and immunity. However, without tightly controlled immune responses, the host will be subjected to detrimental outcomes. Therefore, it is important to balance the positive and negative regulations of TLRs to eliminate pathogen infection, yet avert harmful immunological consequences. This study revealed a distinct mechanism underlying the regulation of the TLR network. The expression of sex-determining region Y-box 4 (Sox4) is induced by virus infection in viral infected patients and cultured cells, which subsequently represses the TLR signaling network to facilitate viral replication at multiple levels by a distinct mechanism. Briefly, Sox4 inhibits the production of myeloid differentiation primary response gene 88 (MyD88) and most of the TLRs by binding to their promoters to attenuate gene transcription. In addition, Sox4 blocks the activities of the TLR/MyD88/IRAK4/TAK1 and TLR/TRIF/TRAF3/TBK1 pathways by repressing their key components. Moreover, Sox4 represses the activation of the nuclear factor kappa-B (NF-κB) through interacting with IKKα/α, and attenuates NF-kB and IFN regulatory factors 3/7 (IRF3/7) abundances by promoting protein degradation. All these contributed to the down-regulation of interferons (IFNs) and IFN-stimulated gene (ISG) expression, leading to facilitate the viral replications. Therefore, we reveal a distinct mechanism by which viral pathogens evade host innate immunity and discover a key regulator in host defense.
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Affiliation(s)
- Jian Shang
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China
| | - Yuan Zheng
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University , Wuhan, China
| | - Jiayin Mo
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University , Wuhan, China
| | - Wenbiao Wang
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China
| | - Zhen Luo
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China
| | - Yongkui Li
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China
| | - Xulin Chen
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China
| | - Qiwei Zhang
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China
| | - Kailang Wu
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University , Wuhan, China
| | - Weiyong Liu
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China
| | - Jianguo Wu
- Guangdong Provincial Key Laboratory of Virology, Institute of Medical Microbiology, Jinan University , Guangzhou, China.,State Key Laboratory of Virology, College of Life Sciences, Wuhan University , Wuhan, China
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10
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Zhou J, Lin Y, Kang X, Liu Z, Zhang W, Xu F. microRNA-186 in extracellular vesicles from bone marrow mesenchymal stem cells alleviates idiopathic pulmonary fibrosis via interaction with SOX4 and DKK1. Stem Cell Res Ther 2021; 12:96. [PMID: 33536061 PMCID: PMC7860043 DOI: 10.1186/s13287-020-02083-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 12/07/2020] [Indexed: 02/08/2023] Open
Abstract
Background Previous reports have identified that human bone marrow mesenchymal stem cell-derived extracellular vesicles (BMSC-EVs) with their cargo microRNAs (miRNAs) are a promising therapeutic approach for the treatment of idiopathic pulmonary fibrosis (IPF). Therefore, we explored whether delivery of microRNA-186 (miR-186), a downregulated miRNA in IPF, by BMSC EVs could interfere with the progression of IPF in a murine model. Methods In a co-culture system, we assessed whether BMSC-EVs modulated the activation of fibroblasts. We established a mouse model of PF to evaluate the in vivo therapeutic effects of BMSC-EVs and determined miR-186 expression in BMSC-EVs by polymerase chain reaction. Using a loss-of-function approach, we examined how miR-186 delivered by BMSC-EVs affected fibroblasts. The putative relationship between miR-186 and SRY-related HMG box transcription factor 4 (SOX4) was tested using luciferase assay. Next, we investigated whether EV-miR-186 affected fibroblast activation and PF by targeting SOX4 and its downstream gene, Dickkopf-1 (DKK1). Results BMSC-EVs suppressed lung fibroblast activation and delayed IPF progression in mice. miR-186 was downregulated in IPF but enriched in the BMSC-EVs. miR-186 delivered by BMSC-EVs could suppress fibroblast activation. Furthermore, miR-186 reduced the expression of SOX4, a target gene of miR-186, and hence suppressed the expression of DKK1. Finally, EV-delivered miR-186 impaired fibroblast activation and alleviated PF via downregulation of SOX4 and DKK1. Conclusion In conclusion, miR-186 delivered by BMSC-EVs suppressed SOX4 and DKK1 expression, thereby blocking fibroblast activation and ameliorating IPF, thus presenting a novel therapeutic target for IPF.
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Affiliation(s)
- Jing Zhou
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Yang Lin
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Xiuhua Kang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Zhicheng Liu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China
| | - Wei Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China.
| | - Fei Xu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi Province, China.
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11
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Liu J, Qiu J, Zhang Z, Zhou L, Li Y, Ding D, Zhang Y, Zou D, Wang D, Zhou Q, Lang T. SOX4 maintains the stemness of cancer cells via transcriptionally enhancing HDAC1 revealed by comparative proteomics study. Cell Biosci 2021; 11:23. [PMID: 33482915 PMCID: PMC7821488 DOI: 10.1186/s13578-021-00539-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/11/2021] [Indexed: 12/20/2022] Open
Abstract
Background Cancer stem cells (CSCs) are the root of human cancer development and the major cause of treatment failure. Aberrant elevation of SOX4, a member of SOX (SRY-related HMG-box) family transcription factors, has been identified in many types of human cancer and promotes cancer development. However, the role of SOX4 in CSCs, especially at a proteome-wide level, has remained elusive. The aim of this study is to investigate the effect of SOX4 on the stemness of CSCs and reveal the underlying mechanisms by identification of SOX4-induced proteome changes through proteomics study. Results Overexpression of SOX4 promotes sphere formation and self-renewal of colorectal cancer cells in vitro and in vivo and elevates the expression levels of CSCs markers. Through iTRAQ-based quantitative proteomics analysis, 215 differentially expressed proteins (128 upregulated, 87 downregulated) in SOX4-overexpressing HCT-116 spheres were identified. The bioinformatic analysis highlighted the importance of HDAC1 as the fundamental roles of its impacted pathways in stem cell maintenance, including Wnt, Notch, cell cycle, and transcriptional misregulation in cancer. The mechanistic study showed that SOX4 directly binds to the promoter of HDAC1, promotes HDAC1 transcription, thereby supporting the stemness of colorectal cancer cells. HDAC1 hallmarks colorectal cancer stem cells and depletion of HDAC1 abolished the stimulatory effect of SOX4. Furthermore, SOX4-HDAC1 axis is conserved in multiple types of cancer. Conclusions The results of this study reveal SOX4-induced proteome changes in HCT-116 spheres and demonstrates that transcriptional activation of HDAC1 is the primary mechanism underlying SOX4 maintaining CSCs. This finding suggests that HDAC1 is a potential drug target for eradicating SOX4-driven human CSCs.
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Affiliation(s)
- Jingshu Liu
- College of Bioengineering, Chongqing University, 400044, Chongqing, People's Republic of China.,Department of Gynecologic Oncology, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China.,Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China.,Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), Chongqing University Cancer Hospital, 400044, Chongqing, People's Republic of China
| | - Jiangfeng Qiu
- Department of Gastrointestinal Surgery, Renji Hospital Shanghai Jiao Tong University School of Medicine, 200127, Shanghai, People's Republic of China
| | - Zhiqi Zhang
- Department of General Surgery, School of Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, 200081, Shanghai, People's Republic of China
| | - Lei Zhou
- Singapore Eye Research Institute, The academia, 20 College Road, Discovery Tower Level 6, 169856, Singapore, Singapore.,Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Ophthalmology and Visual Sciences Academic Clinical Research Program, Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Yunzhe Li
- College of Bioengineering, Chongqing University, 400044, Chongqing, People's Republic of China.,Department of Gynecologic Oncology, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China
| | - Dongyan Ding
- College of Bioengineering, Chongqing University, 400044, Chongqing, People's Republic of China.,Department of Gynecologic Oncology, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China
| | - Yang Zhang
- Laboratory Department, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China
| | - Dongling Zou
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China
| | - Dong Wang
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China
| | - Qi Zhou
- College of Bioengineering, Chongqing University, 400044, Chongqing, People's Republic of China. .,Department of Gynecologic Oncology, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China. .,Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China. .,Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), Chongqing University Cancer Hospital, 400044, Chongqing, People's Republic of China.
| | - Tingyuan Lang
- College of Bioengineering, Chongqing University, 400044, Chongqing, People's Republic of China. .,Department of Gynecologic Oncology, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China. .,Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, 400030, Chongqing, People's Republic of China. .,Key Laboratory for Biorheological Science and Technology of Ministry of Education (Chongqing University), Chongqing University Cancer Hospital, 400044, Chongqing, People's Republic of China.
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12
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Sun J, Xiong Y, Jiang K, Xin B, Jiang T, Wei R, Zou Y, Tan H, Jiang T, Yang A, Jia L, Wang L. Hypoxia-sensitive long noncoding RNA CASC15 promotes lung tumorigenesis by regulating the SOX4/β-catenin axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:12. [PMID: 33407675 PMCID: PMC7789733 DOI: 10.1186/s13046-020-01806-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023]
Abstract
Background Accumulating evidence has demonstrated that long non-coding RNAs (lncRNAs) are involved in the hypoxia-related cancer process and play pivotal roles in enabling malignant cells to survive under hypoxic stress. However, the molecular crosstalk between lncRNAs and hypoxia signaling cascades in non-small cell lung cancer (NSCLC) remains largely elusive. Methods Firstly, we identified differentially expressed lncRNA cancer susceptibility candidate 15 (CASC15) as associated with NSCLC based on bioinformatic data. The clinical significance of CASC15 in lung cancer was investigated by Kaplan-Meier survival analysis. Then, we modulated CASC15 expression in NSCLC cell lines by RNAi. CCK-8 and transwell assays were carried out to examine the effects of CASC15 on proliferation and migration of NSCLC cells. Upstream activator and downstream targets of CASC15 were validated by luciferase reporter assay, qRT-PCR, Western blotting, and chromatin immunoprecipitation (ChIP). Lastly, RNA in situ hybridization (RNA-ISH) and immunohistochemistry (IHC) were performed to confirm the genetic relationships between CASC15 and related genes in clinical samples. Results CASC15 was highly expressed in NSCLC tissues and closely associated with poor prognosis. Loss-of-function analysis demonstrated that CASC15 was essential for NSCLC cell migration and growth. Mechanistic study revealed that CASC15 was transcriptionally activated by hypoxia signaling in NSCLC cells. Further analysis showed that hypoxia-induced CASC15 transactivation was mainly dependent on hypoxia-inducible factor 1α (HIF-1α) and hypoxia response elements (HREs) located in CASC15 promoter. CASC15 promotes the expression of its chromosomally nearby gene, SOX4. Then SOX4 functions to stabilize β-catenin protein, thereby enhancing the proliferation and migration of NSCLC cells. HIF-1α/CASC15/SOX4/β-catenin pathway was activated in a substantial subset of NSCLC patients. Conclusions HIF-1α/CASC15/SOX4/β-catenin axis plays an essential role in the development and progression of NSCLC. The present work provides new evidence that lncRNA CASC15 holds great promise to be used as novel biomarkers for NSCLC. Blocking the HIF-1α/CASC15/SOX4/β-catenin axis can serve as a potential therapeutic strategy for treating NSCLC.
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Affiliation(s)
- Jianyong Sun
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.,Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Yanlu Xiong
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Kuo Jiang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China
| | - Bo Xin
- Department of Oncology, The 960th Hospital of PLA, Tai'an, 271000, Shandong, China
| | - Tongtong Jiang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Renji Wei
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Yuankang Zou
- The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Department of Occupational and Environmental Health, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Hong Tan
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, Shaanxi, China
| | - Angang Yang
- Department of Immunology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
| | - Lei Wang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
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13
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Wang B, Jin WX, Zhang YL, Huang L, Ni HB, Fang D. Effects of miR-489 targeting on SOX4 gene on proliferation and apoptosis of human hepatocellular carcinoma cells. Afr Health Sci 2020; 20:1292-1298. [PMID: 33402977 PMCID: PMC7751537 DOI: 10.4314/ahs.v20i3.34] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Background Hepatocellular carcinoma is one of the most common malignant tumors found all over the globe. Despite advances in surgery and chemotherapy, the five-year survival rate of patients with hepatocellular carcinoma is still low. It is known that the proliferation of hepatocellular carcinoma cells is closely related to the occurrence, development and prognosis of hepatocellular carcinoma. The present work investigates the expression of microRNA-489 (miR-489) in human hepatocellular carcinoma cells and its effect on the biological behavior of human hepatocellular carcinoma cells. Methods The expression of miR-489 by fluorescence quantitative PCR detection in 30 patients with hepatoblastoma of liver cancer tissues and adjacent tissues was studied. Also, the determination of hepatoblastoma in four cell lines with different metastatic potential (HR8348, HCT116, HT29 and HEPG2) and the expression of miR-489 during miR-489 simulation process was studied. MTT assay, flow cytometry and Western blot analysis were performed to know the cell proliferation to detect the changes in cell cycle, apoptosis of cells, and SOX4 gene expression respectively. Results RT-PCR results showed that the cells compared with pre-cancerous tissue, the expression level of miR-489 in hepatocellular carcinoma tissues than in adjacent tissue significantly decreased (P<0.05), and with liver cancer cell metastasis increased (P<0.05); analogue transfection constructed miR-489 overexpressing HEPG2 cell line by microRNA. MTT results showed that miR-489 can inhibit the proliferation of HEPG2 cells, the differences were statistically significant (P<0.05); flow cytometry results showed that miR-489 mimics was transfected into HEPG2 cells at 48 hours had no significant effect on cell cycle distribution (P > 0.05); but miR-489 expression could induce apoptosis, compared with the control group, the apoptosis of miR-489 mimics was significantly increased and the difference was statistically significant (P < 0.05). Conclusion In conclusion, miR-489 can significantly inhibit the occurrence and development of hepatocellular carcinoma cells. The mechanism may be down regulated by the expression of SOX4 and inhibit cell proliferation. Further this study showed that the tumor cells SOX4 gene as a regulatory factor target the genes of miR-489 in hepatocellular carcinoma.
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Affiliation(s)
- Bing Wang
- Department of Abdominal Surgical Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Wang-Xun Jin
- Department of Abdominal Surgical Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Yun-Li Zhang
- Department of Abdominal Surgical Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Ling Huang
- Department of Abdominal Surgical Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Hai-Bin Ni
- Department of Abdominal Surgical Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Dilong Fang
- Department of General Surgery, Zhejiang Provincial Integrated Chinese and Western medicine Hospital, China
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14
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SOX4 activates CXCL12 in hepatocellular carcinoma cells to modulate endothelial cell migration and angiogenesis in vivo. Oncogene 2020; 39:4695-4710. [PMID: 32404985 DOI: 10.1038/s41388-020-1319-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023]
Abstract
The overexpression of SOX4 in various kinds of cancer cells was associated with poor prognosis for patients. The role of SOX4 in angiogenesis and tumor microenvironment modulation was recently documented in breast cancer but remains unclear in hepatocellular carcinoma (HCC). In our study, the clinical relevance of SOX4 overexpression in HCC and its role in the tumor microenvironment were investigated. The overexpression of SOX4 (SOX4high) in tumor lesions was associated with higher microvessel density (P = 0.012), tumor thrombosis formation (P = 0.012), distant metastasis (P < 0.001), and an independent prognostic factor for disease-free survival in HCC patients (P = 0.048). Endogenous SOX4 knockout in Hep3B cells by the CRISPR/cas9 system reduced the expression of CXCL12, which, in turn, attenuated chemotaxis in human umbilical vein endothelial cells, tube formation in vitro, reduced tumor growth, reticular fiber production, and angiogenesis in vivo in a xenograft mouse model. Treatment with an antagonist targeting CXCR4 (AMD3100), a receptor of CXCL12, inhibited chemotaxis and tube formation in endothelial cells in vitro. The CXCL12 promoter was activated by ectopic expression of a Flag-tagged SOX4 plasmid, endogenous SOX4 knockdown abolished promoter activity of CXCL12 as shown by luciferase assays, and an association with the CXCL12 promoter was identified via chromatin immunoprecipitation in HCC cells. In conclusion, SOX4 modulates the CXCL12 promoter in HCC cells. The secretory CXCL12, in turn, modulates CXCR4 in endothelial cells, reticular fibers to regulate the tumor microenvironment and modulate neovascularization, which might contribute to the distant metastasis of tumors.
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15
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Dong H, Hu J, Wang L, Qi M, Lu N, Tan X, Yang M, Bai X, Zhan X, Han B. SOX4 is activated by C-MYC in prostate cancer. Med Oncol 2019; 36:92. [PMID: 31560094 DOI: 10.1007/s12032-019-1317-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 09/12/2019] [Indexed: 11/30/2022]
Abstract
Although MYC proto-oncogene (C-MYC) amplification has been consistently reported to be a potential marker for prostate cancer (PCa) progression and prognosis, the clinicopathological and prognostic significance of C-MYC protein expression remains controversial. Overexpression of SOX4 has been shown to play important roles in multiple cancers including PCa. However, the link between these two critical genetic aberrations is unclear. In the current study, we showed that C-MYC was overexpressed in 16.2% (17/105) of Chinese patients with localized PCa. Overexpression of C-MYC was significantly associated with high Gleason scores (P = 0.012) and high Ki67 labeling index (P = 0.005). C-MYC overexpression was correlated with cancer-related mortality and suggested to be an unfavorable prognostic factor in Chinese PCa patients (P = 0.018). Overexpression of C-MYC is associated with SOX4 overexpression in PCa tissues. Notably, SOX4 is a direct target gene of C-MYC; C-MYC activates SOX4 expression via binding to its promoter. In addition, Co-IP analysis demonstrated a physical interaction between C-MYC and SOX4 protein in PCa cells. Clinically, C-MYC+/SOX4+ characterized poor prognosis in a subset of PCa patients. In total, C-MYC overexpression may contribute to PCa progression by activating SOX4. Our findings highlight an important role of C-MYC/SOX4 in PCa progression in a subset of PCa patients.
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Affiliation(s)
- Hongyan Dong
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China
- Department of Pathology, Linyi People's Hospital, Linyi, China
| | - Jing Hu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China
| | - Lin Wang
- Research Center for Medical Biotechnology, Shandong Academy of Medical Sciences, Jinan, China
| | - Mei Qi
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China
| | - Ning Lu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China
| | - Xiao Tan
- Department of Pathology, Linyi People's Hospital, Linyi, China
| | - Muyi Yang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China
| | - Xinnuo Bai
- Department of Human Biology, University of Toronto, Toronto, M5S3J6, Canada
| | - Xuemei Zhan
- Department of Pathology, Linyi People's Hospital, Linyi, China
| | - Bo Han
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Shandong University, Jinan, 250012, China.
- Department of Pathology, Shandong University Qilu Hospital, Jinan, China.
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16
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Chen Y, Huang F, Deng L, Tang Y, Li D, Wang T, Fan Y, Tao Q, Tang D. Long non-coding RNA TGLC15 advances hepatocellular carcinoma by stabilizing Sox4. J Clin Lab Anal 2019; 34:e23009. [PMID: 31495979 PMCID: PMC6977111 DOI: 10.1002/jcla.23009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/22/2019] [Accepted: 07/29/2019] [Indexed: 12/25/2022] Open
Abstract
Background The hepatocellular carcinoma (HCC) belongs to a common malignancy especially in China. Recent data have clarified important roles of long non‐coding RNAs (lncRNAs) in HCC. However, the role of a novel intergenic lncRNA termed TGLC15 is still elusive. Methods We screened for novel lncRNAs using lncRNA profiling. TGLC15 expression was quantified by qRT‐PCR. In vitro experiments such as migration and viability assays were performed. In vivo implantation experiments were conducted to investigate tumorigenic functions of TGLC15. Combined RNA immunoprecipitation (RIP) and mass spectrometry (MS) were utilized to uncover Sox4 as TGLC15 binding protein. Results TGLC15 is significantly overexpressed in tumor tissues and HCC cell lines. Higher TGLC15 levels correlated with advanced malignant characteristics such as TNM stages, tumor size, and metastasis. TGLC15 advanced HCC migration and viability. The in vivo experiments supported that xenograft tumor growth and proliferation were facilitated by TGLC15 overexpression. Mechanistic studies showed that TGLC15 interacted with Sox4 and interaction between TGLC15 and Sox4 could stabilize Sox4 via reduction in proteasome‐mediated degradation. Conclusions Collectively, our data have identified a novel lncRNA TGLC15 during HCC development. The TGLC15‐Sox4 signaling might be a potential target for pharmaceutical intervention.
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Affiliation(s)
- Yang Chen
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Fei Huang
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Liang Deng
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Yajun Tang
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Dong Li
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Tielong Wang
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Youwen Fan
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Qiang Tao
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Di Tang
- Department of General Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
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17
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Moreno CS. SOX4: The unappreciated oncogene. Semin Cancer Biol 2019; 67:57-64. [PMID: 31445218 DOI: 10.1016/j.semcancer.2019.08.027] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 07/31/2019] [Accepted: 08/20/2019] [Indexed: 01/10/2023]
Abstract
SOX4 is an essential developmental transcription factor that regulates stemness, differentiation, progenitor development, and multiple developmental pathways including PI3K, Wnt, and TGFβ signaling. The SOX4 gene is frequently amplified and overexpressed in over 20 types of malignancies, and multiple lines of evidence support that notion that SOX4 is an oncogene. Its overexpression is due to both gene amplification and to activation of PI3K, Wnt, and TGFβ pathways that SOX4 regulates. SOX4 interacts with multiple other transcription factors, rendering many of its impacts on gene expression context and tissue-specific. Nevertheless, there are common themes that run through many of the effects of SOX4 hyperactivity, such as the promotion of cell survival, stemness, the epithelial to mesenchymal transition, migration, and metastasis. Specific targeting of SOX4 remains a challenge for future cancer research and drug development.
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Affiliation(s)
- Carlos S Moreno
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Whitehead Bldg, Rm 105J, 615 Michael St. Atlanta, GA, USA.
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18
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Newton R, Wernisch L. A meta-analysis of multiple matched aCGH/expression cancer datasets reveals regulatory relationships and pathway enrichment of potential oncogenes. PLoS One 2019; 14:e0213221. [PMID: 31335867 PMCID: PMC6650054 DOI: 10.1371/journal.pone.0213221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 07/05/2019] [Indexed: 12/12/2022] Open
Abstract
The copy numbers of genes in cancer samples are often highly disrupted and form a natural amplification/deletion experiment encompassing multiple genes. Matched array comparative genomics and transcriptomics datasets from such samples can be used to predict inter-chromosomal gene regulatory relationships. Previously we published the database METAMATCHED, comprising the results from such an analysis of a large number of publically available cancer datasets. Here we investigate genes in the database which are unusual in that their copy number exhibits consistent heterogeneous disruption in a high proportion of the cancer datasets. We assess the potential relevance of these genes to the pathology of the cancer samples, in light of their predicted regulatory relationships and enriched biological pathways. A network-based method was used to identify enriched pathways from the genes’ inferred targets. The analysis predicts both known and new regulator-target interactions and pathway memberships. We examine examples in detail, in particular the gene POGZ, which is disrupted in many of the cancer datasets and has an unusually large number of predicted targets, from which the network analysis predicts membership of cancer related pathways. The results suggest close involvement in known cancer pathways of genes exhibiting consistent heterogeneous copy number disruption. Further experimental work would clarify their relevance to tumor biology. The results of the analysis presented in the database METAMATCHED, and included here as an R archive file, constitute a large number of predicted regulatory relationships and pathway memberships which we anticipate will be useful in informing such experiments.
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Affiliation(s)
- Richard Newton
- MRC Biostatistics Unit, Cambridge University, Cambridge, United Kingdom
- * E-mail:
| | - Lorenz Wernisch
- MRC Biostatistics Unit, Cambridge University, Cambridge, United Kingdom
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SOX4: Epigenetic regulation and role in tumorigenesis. Semin Cancer Biol 2019; 67:91-104. [PMID: 31271889 DOI: 10.1016/j.semcancer.2019.06.022] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 06/21/2019] [Accepted: 06/28/2019] [Indexed: 02/06/2023]
Abstract
Sex-determining region Y-related (SRY) high-mobility group box 4 (SOX4) is a member of the group C subfamily of SOX transcription factors and promotes tumorigenesis by endowing cancer cells with survival, migratory, and invasive capacities. Emerging evidence has highlighted an unequivocal role for this transcription factor in mediating various signaling pathways involved in tumorigenesis, epithelial-to-mesenchymal transition (EMT), and tumor progression. During the last decade, numerous studies have highlighted the epigenetic interplay between SOX4-targeting microRNAs (miRNAs), long noncoding RNAs (lncRNAs) and SOX4 and the subsequent modulation of tumorigenesis, invasion and metastasis. In this review, we summarize the current state of knowledge about the role of SOX4 in cancer development and progression, the epigenetic regulation of SOX4, and the potential utilization of SOX4 as a diagnostic and prognostic biomarker and its depletion as a therapeutic target.
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Wei D, Wang W, Shen B, Zhou Y, Yang X, Lu G, Yang J, Shao Y. MicroRNA‑199a‑5p suppresses migration and invasion in oral squamous cell carcinoma through inhibiting the EMT‑related transcription factor SOX4. Int J Mol Med 2019; 44:185-195. [PMID: 31059001 PMCID: PMC6559314 DOI: 10.3892/ijmm.2019.4174] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 04/19/2019] [Indexed: 01/26/2023] Open
Abstract
MicroRNAs (miRs) are small, non-coding RNAs that can act as oncogenes or tumor suppressor genes in human cancer. Recent studies have revealed that miR-199a-5p is abnormally expressed in various types of human cancer; however, the potential role of miR-199a-5p in oral squamous cell carcinoma (OSCC) remains elusive. The present study investigated the role of miR-199a-5p in OSCC cells and explored the potential molecular mechanism. Reverse transcription-quantitative polymerase chain reaction was used to measure miR-199a-5p expression in OSCC tissues and adjacent normal oral epithelial tissues. Cell invasion and migration were evaluated using Transwell invasion and wound-healing assays in OSCC cells post-transfection with miR-199a-5p mimics or negative control mimics. In addition, a luciferase reporter assay was conducted to identify the target gene of miR-199a-5p in OSCC cells. The results demonstrated that miR-199a-5p expression was significantly downregulated in OSCC tissues and cell lines, and was associated with tumor progression in OSCC. Furthermore, overexpression of miR-199a-5p inhibited cell invasion and migration, and blocked the epithelial-mesenchymal transition (EMT) cascade. Notably, the results revealed that the EMT-related transcription factor SRY-box 4 (SOX4) was a direct target gene of miR-199a-5p, as determined by the direct binding of miR-199a-5p with the 3′-untranslated region of SOX4. In addition, knockdown of SOX4 by small interfering RNA-SOX4 suppressed proliferation, migration and invasion of OSCC cells. Conversely, overexpression of SOX4 rescued the suppressive effects of miR-199a-5p on cell migration and invasion. Collectively, these data indicated that miR-199a-5p may inhibit the migration and invasion of OSCC cells via targeting the EMT-related transcription factor SOX4, thus suggesting that miR-199a-5p may serve as a prognostic biomarker and therapeutic target in the treatment of OSCC.
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Affiliation(s)
- Dongyi Wei
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Weixin Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Baohong Shen
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Yanjun Zhou
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Xiaodong Yang
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Guangjian Lu
- Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Jianbin Yang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Yuebao Shao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
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21
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The role of SOX family members in solid tumours and metastasis. Semin Cancer Biol 2019; 67:122-153. [PMID: 30914279 DOI: 10.1016/j.semcancer.2019.03.004] [Citation(s) in RCA: 212] [Impact Index Per Article: 42.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/07/2019] [Accepted: 03/21/2019] [Indexed: 02/07/2023]
Abstract
Cancer is a heavy burden for humans across the world with high morbidity and mortality. Transcription factors including sex determining region Y (SRY)-related high-mobility group (HMG) box (SOX) proteins are thought to be involved in the regulation of specific biological processes. The deregulation of gene expression programs can lead to cancer development. Here, we review the role of the SOX family in breast cancer, prostate cancer, renal cell carcinoma, thyroid cancer, brain tumours, gastrointestinal and lung tumours as well as the entailing therapeutic implications. The SOX family consists of more than 20 members that mediate DNA binding by the HMG domain and have regulatory functions in development, cell-fate decision, and differentiation. SOX2, SOX4, SOX5, SOX8, SOX9, and SOX18 are up-regulated in different cancer types and have been found to be associated with poor prognosis, while the up-regulation of SOX11 and SOX30 appears to be favourable for the outcome in other cancer types. SOX2, SOX4, SOX5 and other SOX members are involved in tumorigenesis, e.g. SOX2 is markedly up-regulated in chemotherapy resistant cells. The SoxF family (SOX7, SOX17, SOX18) plays an important role in angio- and lymphangiogenesis, with SOX18 seemingly being an attractive target for anti-angiogenic therapy and the treatment of metastatic disease in cancer. In summary, SOX transcription factors play an important role in cancer progression, including tumorigenesis, changes in the tumour microenvironment, and metastasis. Certain SOX proteins are potential molecular markers for cancer prognosis and putative potential therapeutic targets, but further investigations are required to understand their physiological functions.
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22
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Olbromski M, Podhorska-Okołów M, Dzięgiel P. Role of the SOX18 protein in neoplastic processes. Oncol Lett 2018; 16:1383-1389. [PMID: 30008814 DOI: 10.3892/ol.2018.8819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 05/02/2018] [Indexed: 12/13/2022] Open
Abstract
There is a high demand for anticancer drugs due to the fact that the chemotherapeutics currently used have numerous side effects, which lowers the patient's quality of life. However, the latest antibody therapies are extremely expensive, hence the requirement to identify novel, equally effective but low-toxic treatments that have limited side effects. As a result of this, a number of research centres around the world are attempting to identify novel molecular markers that could be effective targets for anticancer therapy in the future. The SOX18 protein has been suggested to be a significant diagnostic and prognostic marker in various types of cancer. SRY-related HMG-box 18 (SOX18) is an important transcription factor involved in the development of cardiovascular and lymphatic vessels during embryonic development. In addition, it is involved in the progression of atherosclerosis and wound-healing processes. It has been observed that its level is higher in a number of cancer types, including melanoma, pancreas, stomach, liver, breast, lung, ovarian and cervical cancer. Furthermore, an association between a high expression of SOX18 in gastric cancer stromal cells and a poor prognosis has been demonstrated. The literature indicates how complex the pathogenesis of cancer is. Knowing the molecular basis of the pathogenesis of the tumor will allow for the effective use of targeted therapy, which may result in a higher success in treating patients. It is therefore important to identify novel and effective therapies as well as new proteins that could be potential markers. The SOX18 family, represented by the SOX18 protein, seems to be in this respect a promising element in modern anticancer therapy.
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Affiliation(s)
- Mateusz Olbromski
- Department of Histology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland
| | | | - Piotr Dzięgiel
- Department of Histology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland.,Department of Physiotherapy, University School of Physical Education, 51-617 Wroclaw, Poland
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23
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Sakre N, Wildey G, Behtaj M, Kresak A, Yang M, Fu P, Dowlati A. RICTOR amplification identifies a subgroup in small cell lung cancer and predicts response to drugs targeting mTOR. Oncotarget 2018; 8:5992-6002. [PMID: 27863413 PMCID: PMC5351607 DOI: 10.18632/oncotarget.13362] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 10/26/2016] [Indexed: 12/30/2022] Open
Abstract
Small cell lung cancer (SCLC) is an aggressive cancer that represents ~15% of all lung cancers. Currently there are no targeted therapies to treat SCLC. Our genomic analysis of a metastatic SCLC cohort identified recurrent RICTOR amplification. Here, we examine the translational potential of this observation. RICTOR was the most frequently amplified gene observed (~14% patients), and co-amplified with FGF10 and IL7R on chromosome 5p13. RICTOR copy number variation correlated with RICTOR protein expression in SCLC cells. In parallel, cells with RICTOR copy number (CN) gain showed increased sensitivity to three mTOR inhibitors, AZD8055, AZD2014 and INK128 in cell growth assays, with AZD2014 demonstrating the best inhibition of downstream signaling. SCLC cells with RICTOR CN gain also migrated more rapidly in chemotaxis and scratch wound assays and were again more sensitive to mTOR inhibitors. The overall survival in SCLC patients with RICTOR amplification was significantly decreased (p = 0.021). Taken together, our results suggest that SCLC patients with RICTOR amplification may constitute a clinically important subgroup because of their potential response to mTORC1/2 inhibitors.
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Affiliation(s)
- Nneha Sakre
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, 44106 USA.,Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, 44106 USA
| | - Gary Wildey
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, 44106 USA.,Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, 44106 USA
| | - Mohadese Behtaj
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, 44106 USA
| | - Adam Kresak
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, 44106 USA.,Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, 44106 USA
| | - Michael Yang
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, 44106 USA
| | - Pingfu Fu
- Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, 44106 USA
| | - Afshin Dowlati
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, 44106 USA.,Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, 44106 USA
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24
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Pan B, Xue X, Zhang D, Li M, Fu J. SOX4 arrests lung development in rats with hyperoxia‑induced bronchopulmonary dysplasia by controlling EZH2 expression. Int J Mol Med 2017; 40:1691-1698. [PMID: 29039454 PMCID: PMC5716405 DOI: 10.3892/ijmm.2017.3171] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 09/21/2017] [Indexed: 12/12/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is currently the most common severe complication in premature infants and is characterized by the arrest of alveolar and vascular growth. Alveolar type II cells play an important role in the pathological foundation of BPD. An association of BPD with epithelial‑to‑mesenchymal transition (EMT) in type II cells exposed to hyperoxia was previously identified. SOX4, a transcription factor that is indispensable to embryogenesis, including lung development, participates in regulating EMT and cell survival, affecting tumorigenesis. The aim of the present study was to investigate the involvement of SOX4 in the occurrence of BPD, which, to the best of our knowledge, has not been previously determined. For this purpose, newborn rats were randomly divided into two treatment groups: The model group was exposed to hyperoxia (80-85% O2), while the control group was kept under normoxic conditions (21% O2). Lung tissues were collected on postnatal days 1, 3, 7, 14 and 21 and morphological changes in the lungs were examined by hematoxylin and eosin staining. The location of SOX4 in type II cells was detected by double immunofluorescence. The expression of SOX4 and enhancer of zeste homolog 2 (EZH2) in type II cells and lung tissues were detected by immunochemistry, western blotting and quantitative polymerase chain reaction analysis. The results demonstrated that, compared with the control group, the radial alveolar count decreased rapidly in the model group, accompanied by increased mean alveolar diameter and alveolar septal thickness. SOX4 and EZH2 were highly expressed in type II cells exposed to hyperoxia. However, in total lung tissues, SOX4 and EZH2 expression was profoundly decreased in the early stages and increased in the late stages following exposure to hyperoxia. The expression of the EZH2 protein was positively correlated with that of the SOX4 protein. In conclusion, at the alveolar stage, which is a critical period after birth for lung development, hyperoxia induced dysregulation of SOX4 and EZH2 in rat lungs, indicating that SOX4 may contribute to the disruption of lung development in BPD by regulating EZH2 expression.
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Affiliation(s)
- Bingting Pan
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xindong Xue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Dan Zhang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Mengyun Li
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Jianhua Fu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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25
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Overexpression of SOX4 correlates with poor prognosis of acute myeloid leukemia and is leukemogenic in zebrafish. Blood Cancer J 2017; 7:e593. [PMID: 28841206 PMCID: PMC5596385 DOI: 10.1038/bcj.2017.74] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 07/10/2017] [Indexed: 12/19/2022] Open
Abstract
The SOX4 transcription factor is a key regulator of embryonic development, cell-fate decision, cellular differentiation and oncogenesis. Abnormal expression of SOX4 is related to malignant tumor transformation and cancer metastasis. However, no reports are available regarding the clinical significance of SOX4 in acute myeloid leukemia (AML) and the role of SOX4 in leukemogenesis. In the current study, we found that AML patients with low bone marrow (BM) SOX4 expression had higher remission rates and longer overall survival than those with high SOX4 expression, regardless of age, white blood cell count at diagnosis, karyotype profile and NPM1/FLT3-ITD status. To elucidate the role of SOX4 in leukemogenesis, we generated a transgenic zebrafish model that overexpressed human SOX4 in the myeloid lineage Tg(spi1-SOX4-EGFP). These transgenic zebrafish showed, at 5 months of age, increased myelopoiesis with dedifferentiation in kidney marrow. At 9 months of age, their kidney structure was significantly effaced and distorted by increased infiltration of myeloid progenitor cells. These results suggest that SOX4 is not only an independent prognostic factor of AML, but also an important molecular factor in leukemogenesis.
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26
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Ruan H, Yang H, Wei H, Xiao W, Lou N, Qiu B, Xu G, Song Z, Xiao H, Liu L, Zhou Y, Hu W, Chen K, Chen X, Zhang X. Overexpression of SOX4 promotes cell migration and invasion of renal cell carcinoma by inducing epithelial-mesenchymal transition. Int J Oncol 2017; 51:336-346. [PMID: 28534986 DOI: 10.3892/ijo.2017.4010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/08/2017] [Indexed: 11/05/2022] Open
Abstract
Incomplete understanding remains in the molecular mechanisms underlying progression and metastasis of renal cancer. The transcription factor SOX4 is upregulated in various human malignancies, including renal cancer, indicating it may be involved in renal tumorigenesis. In this study, we explored this hypothesis by loss-of-function and gain-of-function assays of SOX4 in renal cancer cell lines and renal epithelial cell line. We found that specific knockdown of SOX4 in renal cancer cell lines significantly suppressed the migration and invasion of cancer cells; specific overexpression of SOX4 in renal epithelial cell line markedly promoted the migration and invasion of the cell line. Epithelial-mesenchymal transition (EMT), a fundamental morphogenesis process, is implicated in renal cancer progression and metastasis. Our results demonstrated that SOX4 positively regulated the expression of mesenchymal cell markers and negatively regulated the expression of epithelial cell marker, and was involved in signal transduction pathway of TGFβ-induced EMT. In addition, SOX4 induced EMT probably through modulating the AKT/p-AKT signaling cascade. Finally, we found that SOX4 was significantly upregulated in clinical renal cancer samples compared with corresponding normal tissues and associated with EMT process in clinical samples. Taken together, our findings confirm a crucial function of SOX4 in the metastasis of renal cancer through orchestrating EMT and establish that the function suppression of SOX4-AKT-EMT axis might be an attractive therapeutic intervention during renal cancer metastasis.
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Affiliation(s)
- Hailong Ruan
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Hongmei Yang
- Department of Pathogenic Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Haibin Wei
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Wen Xiao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Ning Lou
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Bin Qiu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Guanghua Xu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Zhengshuai Song
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Haibin Xiao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Lei Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yali Zhou
- Department of Pathogenic Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Wenjun Hu
- Department of Pathogenic Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Ke Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Xuanyu Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Xiaoping Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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27
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WANG CHAO, SU HAI, YANG LIN, HUANG KUN. INTEGRATIVE ANALYSIS FOR LUNG ADENOCARCINOMA PREDICTS MORPHOLOGICAL FEATURES ASSOCIATED WITH GENETIC VARIATIONS. PACIFIC SYMPOSIUM ON BIOCOMPUTING. PACIFIC SYMPOSIUM ON BIOCOMPUTING 2017; 22:82-93. [PMID: 27896964 PMCID: PMC5360185 DOI: 10.1142/9789813207813_0009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Lung cancer is one of the most deadly cancers and lung adenocarcinoma (LUAD) is the most common histological type of lung cancer. However, LUAD is highly heterogeneous due to genetic difference as well as phenotypic differences such as cellular and tissue morphology. In this paper, we systematically examine the relationships between histological features and gene transcription. Specifically, we calculated 283 morphological features from histology images for 201 LUAD patients from TCGA project and identified the morphological feature with strong correlation with patient outcome. We then modeled the morphology feature using multiple co-expressed gene clusters using Lasso-regression. Many of the gene clusters are highly associated with genetic variations, specifically DNA copy number variations, implying that genetic variations play important roles in the development cancer morphology. As far as we know, our finding is the first to directly link the genetic variations and functional genomics to LUAD histology. These observations will lead to new insight on lung cancer development and potential new integrative biomarkers for prediction patient prognosis and response to treatments.
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Affiliation(s)
- CHAO WANG
- Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio, 43210, USA,
| | - HAI SU
- Biomedical Engineering, University of Florida, Gainsville, Florida, 32611, USA,
| | - LIN YANG
- Biomedical Engineering, University of Florida, Gainsville, Florida, 32611, USA,
| | - KUN HUANG
- Biomedical Informatics, The Ohio State University, Columbus, Ohio, 43210, US,
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28
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Oncogenic Sox2 regulates and cooperates with VRK1 in cell cycle progression and differentiation. Sci Rep 2016; 6:28532. [PMID: 27334688 PMCID: PMC4917848 DOI: 10.1038/srep28532] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 06/06/2016] [Indexed: 12/31/2022] Open
Abstract
Sox2 is a pluripotency transcription factor that as an oncogene can also regulate cell proliferation. Therefore, genes implicated in several different aspects of cell proliferation, such as the VRK1 chromatin-kinase, are candidates to be targets of Sox2. Sox 2 and VRK1 colocalize in nuclei of proliferating cells forming a stable complex. Sox2 knockdown abrogates VRK1 gene expression. Depletion of either Sox2 or VRK1 caused a reduction of cell proliferation. Sox2 up-regulates VRK1 expression and both proteins cooperate in the activation of CCND1. The accumulation of VRK1 protein downregulates SOX2 expression and both proteins are lost in terminally differentiated cells. Induction of neural differentiation with retinoic acid resulted in downregulation of Sox2 and VRK1 that inversely correlated with the expression of differentiation markers such as N-cadherin, Pax6, mH2A1.2 and mH2A2. Differentiation-associated macro histones mH2A1.2and mH2A2 inhibit CCND1 and VRK1 expression and also block the activation of the VRK1 promoter by Sox2. VRK1 is a downstream target of Sox2 and both form an autoregulatory loop in epithelial cell differentiation.
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29
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Lee H, Goodarzi H, Tavazoie SF, Alarcón CR. TMEM2 Is a SOX4-Regulated Gene That Mediates Metastatic Migration and Invasion in Breast Cancer. Cancer Res 2016; 76:4994-5005. [PMID: 27328729 DOI: 10.1158/0008-5472.can-15-2322] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 06/14/2016] [Indexed: 12/20/2022]
Abstract
The developmental transcription factor SOX4 contributes to the metastatic spread of multiple solid cancer types, but its direct target genes that mediate cancer progression are not well defined. Using a systematic molecular and genomic approach, we identified the TMEM2 transmembrane protein gene as a direct transcriptional target of SOX4. TMEM2 was transcriptionally activated by SOX4 in breast cancer cells where, like SOX4, TMEM2 was found to mediate proinvasive and promigratory effects. Similarly, TMEM2 was sufficient to promote metastatic colonization of breast cancer cells and its expression in primary breast tumors associated with a higher likelihood of metastatic relapse. Given earlier evidence that genetic inactivation of SOX4 or TMEM2 yield similar defects in cardiac development, our findings lead us to propose that TMEM2 may not only mediate the pathologic effects of SOX4 on cancer progression but also potentially its contributions to embryonic development. Cancer Res; 76(17); 4994-5005. ©2016 AACR.
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Affiliation(s)
- Hyeseung Lee
- Laboratory of Systems Cancer Biology, Rockefeller University, New York, New York
| | - Hani Goodarzi
- Laboratory of Systems Cancer Biology, Rockefeller University, New York, New York
| | - Sohail F Tavazoie
- Laboratory of Systems Cancer Biology, Rockefeller University, New York, New York.
| | - Claudio R Alarcón
- Laboratory of Systems Cancer Biology, Rockefeller University, New York, New York.
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30
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Jiang L, Huang J, Higgs BW, Hu Z, Xiao Z, Yao X, Conley S, Zhong H, Liu Z, Brohawn P, Shen D, Wu S, Ge X, Jiang Y, Zhao Y, Lou Y, Morehouse C, Zhu W, Sebastian Y, Czapiga M, Oganesyan V, Fu H, Niu Y, Zhang W, Streicher K, Tice D, Zhao H, Zhu M, Xu L, Herbst R, Su X, Gu Y, Li S, Huang L, Gu J, Han B, Jallal B, Shen H, Yao Y. Genomic Landscape Survey Identifies SRSF1 as a Key Oncodriver in Small Cell Lung Cancer. PLoS Genet 2016; 12:e1005895. [PMID: 27093186 PMCID: PMC4836692 DOI: 10.1371/journal.pgen.1005895] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/03/2016] [Indexed: 11/19/2022] Open
Abstract
Small cell lung cancer (SCLC) is an aggressive disease with poor survival. A few sequencing studies performed on limited number of samples have revealed potential disease-driving genes in SCLC, however, much still remains unknown, particularly in the Asian patient population. Here we conducted whole exome sequencing (WES) and transcriptomic sequencing of primary tumors from 99 Chinese SCLC patients. Dysregulation of tumor suppressor genes TP53 and RB1 was observed in 82% and 62% of SCLC patients, respectively, and more than half of the SCLC patients (62%) harbored TP53 and RB1 mutation and/or copy number loss. Additionally, Serine/Arginine Splicing Factor 1 (SRSF1) DNA copy number gain and mRNA over-expression was strongly associated with poor survival using both discovery and validation patient cohorts. Functional studies in vitro and in vivo demonstrate that SRSF1 is important for tumorigenicity of SCLC and may play a key role in DNA repair and chemo-sensitivity. These results strongly support SRSF1 as a prognostic biomarker in SCLC and provide a rationale for personalized therapy in SCLC. SCLC patients are initially highly chemo-sensitive with response rates of greater than 80% in both limited and extensive diseases, but suffer uniform disease recurrence or progression in a very short period of time. In the absence of well-defined genomic biomarkers and insights into the resistance mechanism, many targeted treatments have yielded negative results in the last decade Using integrated next generation sequencing (NGS) technology in combination with a high quality surgical sample set with comprehensive clinical annotation, our study not only identified novel recurrent genetic alterations in genes such as CDH10 and DNA repair pathways which may influence outcomes in SCLC patients, but also discovered the expression of SRSF1, an RNA-splicing factor which can both regulate key oncogenic and survival pathways such as BCL2, and play a critical role in patient survival.
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Affiliation(s)
- Liyan Jiang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jiaqi Huang
- Medimmune, Gaithersburg, Maryland, United States of America
| | | | - Zhibin Hu
- Department of Epidemiology and Biostatistics, Collaborative Innovation Center of Cancer Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhan Xiao
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Xin Yao
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Sarah Conley
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Haihong Zhong
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Zheng Liu
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Philip Brohawn
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Dong Shen
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Song Wu
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Xiaoxiao Ge
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yue Jiang
- Department of Epidemiology and Biostatistics, Collaborative Innovation Center of Cancer Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yizhuo Zhao
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yuqing Lou
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | | | - Wei Zhu
- Medimmune, Gaithersburg, Maryland, United States of America
| | | | - Meggan Czapiga
- Medimmune, Gaithersburg, Maryland, United States of America
| | | | - Haihua Fu
- Asia & Emerging Markets iMed, AstraZeneca R&D, Shanghai, China
| | - Yanjie Niu
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Zhang
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | | | - David Tice
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Heng Zhao
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Meng Zhu
- Department of Epidemiology and Biostatistics, Collaborative Innovation Center of Cancer Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Lin Xu
- Department of Epidemiology and Biostatistics, Collaborative Innovation Center of Cancer Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Ronald Herbst
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Xinying Su
- Asia & Emerging Markets iMed, AstraZeneca R&D, Shanghai, China
| | - Yi Gu
- Asia & Emerging Markets iMed, AstraZeneca R&D, Shanghai, China
| | - Shyoung Li
- Beijing Genomics Institute, Shenzhen GuangDong, China
| | - Lihua Huang
- Beijing Genomics Institute, Shenzhen GuangDong, China
| | - Jianren Gu
- Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Baohui Han
- Department of Pulmonary, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Bahija Jallal
- Medimmune, Gaithersburg, Maryland, United States of America
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, Collaborative Innovation Center of Cancer Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, School of Public Health, Nanjing Medical University, Nanjing, China
- * E-mail: (HS); (YY)
| | - Yihong Yao
- Medimmune, Gaithersburg, Maryland, United States of America
- * E-mail: (HS); (YY)
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Roisman A, Huamán Garaicoa F, Metrebian F, Narbaitz M, Kohan D, García Rivello H, Fernandez I, Pavlovsky A, Pavlovsky M, Hernández L, Slavutsky I. SOXC and MiR17-92 gene expression profiling defines two subgroups with different clinical outcome in mantle cell lymphoma. Genes Chromosomes Cancer 2016; 55:531-40. [PMID: 26998831 DOI: 10.1002/gcc.22355] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 03/03/2016] [Accepted: 03/14/2016] [Indexed: 12/12/2022] Open
Abstract
Mantle cell lymphoma (MCL) is a heterogeneous B-cell lymphoid malignancy where most patients follow an aggressive clinical course whereas others are associated with an indolent performance. SOX4, SOX11, and SOX12 belong to SOXC family of transcription factors involved in embryonic neurogenesis and tissue remodeling. Among them, SOX11 has been found aberrantly expressed in most aggressive MCL patients, being considered a reliable biomarker in the pathology. Several studies have revealed that microRNAs (miRs) from the miR-17-92 cluster are among the most deregulated miRNAs in human cancers, still little is known about this cluster in MCL. In this study we screened the transcriptional profiles of 70 MCL patients for SOXC cluster and miR17, miR18a, miR19b and miR92a, from the miR-17-92 cluster. Gene expression analysis showed higher SOX11 and SOX12 levels compared to SOX4 (P ≤ 0.0026). Moreover we found a negative correlation between the expression of SOX11 and SOX4 (P < 0.0001). miR17-92 cluster analysis showed that miR19b and miR92a exhibited higher levels than miR17 and miR18a (P < 0.0001). Unsupervised hierarchical clustering revealed two subgroups with significant differences in relation to aggressive MCL features, such as blastoid morphological variant (P = 0.0412), nodal presentation (P = 0.0492), CD5(+) (P = 0.0004) and shorter overall survival (P < 0.0001). Together, our findings show for the first time an association between the differential expression profiles of SOXC and miR17-92 clusters in MCL and also relate them to different clinical subtypes of the disease adding new biological information that may contribute to a better understanding of this pathology. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Alejandro Roisman
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina (ANM), Buenos Aires, Argentina
| | - Fuad Huamán Garaicoa
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina (ANM), Buenos Aires, Argentina.,FUNDALEU, Buenos Aires, Argentina
| | - Fernanda Metrebian
- División Patología, Instituto de Investigaciones Hematológicas, ANM, Buenos Aires, Argentina
| | - Marina Narbaitz
- FUNDALEU, Buenos Aires, Argentina.,División Patología, Instituto de Investigaciones Hematológicas, ANM, Buenos Aires, Argentina
| | - Dana Kohan
- Servicio de Patología, Hospital Italiano, Buenos Aires, Argentina
| | | | | | | | | | - Luis Hernández
- Patología Molecular, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, España
| | - Irma Slavutsky
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina (ANM), Buenos Aires, Argentina
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32
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Bilir B, Osunkoya AO, Wiles WG, Sannigrahi S, Lefebvre V, Metzger D, Spyropoulos DD, Martin WD, Moreno CS. SOX4 Is Essential for Prostate Tumorigenesis Initiated by PTEN Ablation. Cancer Res 2015; 76:1112-21. [PMID: 26701805 DOI: 10.1158/0008-5472.can-15-1868] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 12/08/2015] [Indexed: 01/15/2023]
Abstract
Understanding remains incomplete of the mechanisms underlying initiation and progression of prostate cancer, the most commonly diagnosed cancer in American men. The transcription factor SOX4 is overexpressed in many human cancers, including prostate cancer, suggesting it may participate in prostate tumorigenesis. In this study, we investigated this possibility by genetically deleting Sox4 in a mouse model of prostate cancer initiated by loss of the tumor suppressor Pten. We found that specific homozygous deletion of Sox4 in the adult prostate epithelium strongly inhibited tumor progression initiated by homozygous loss of Pten. Mechanistically, Sox4 ablation reduced activation of AKT and β-catenin, leading to an attenuated invasive phenotype. Furthermore, SOX4 expression was induced by Pten loss as a result of the activation of PI3K-AKT-mTOR signaling, suggesting a positive feedback loop between SOX4 and PI3K-AKT-mTOR activity. Collectively, our findings establish that SOX4 is a critical component of the PTEN/PI3K/AKT pathway in prostate cancer, with potential implications for combination-targeted therapies against both primary and advanced prostate cancers.
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Affiliation(s)
- Birdal Bilir
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia
| | - Adeboye O Osunkoya
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia. Department of Urology, Emory University, Atlanta, Georgia. Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - W Guy Wiles
- Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - Soma Sannigrahi
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia. Hubert Department of Global Health Infectious Diseases, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Veronique Lefebvre
- Department of Cellular and Molecular Medicine, Cleveland Clinic, Cleveland, Ohio
| | - Daniel Metzger
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de Santé et de Recherche Médicale (INSERM) U964/Centre National de Recherche Scientifique (CNRS) UMR 7104/Université de Strasbourg, Illkirch, France
| | - Demetri D Spyropoulos
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - W David Martin
- Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - Carlos S Moreno
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia. Winship Cancer Institute, Emory University, Atlanta, Georgia.
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Investigating inter-chromosomal regulatory relationships through a comprehensive meta-analysis of matched copy number and transcriptomics data sets. BMC Genomics 2015; 16:967. [PMID: 26581858 PMCID: PMC4650296 DOI: 10.1186/s12864-015-2100-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 10/15/2015] [Indexed: 12/16/2022] Open
Abstract
Background Gene regulatory relationships can be inferred using matched array comparative genomics and transcriptomics data sets from cancer samples. The way in which copy numbers of genes in cancer samples are often greatly disrupted works like a natural gene amplification/deletion experiment. There are now a large number of such data sets publicly available making a meta-analysis of the data possible. Results We infer inter-chromosomal acting gene regulatory relationships from a meta-analysis of 31 publicly available matched array comparative genomics and transcriptomics data sets in humans. We obtained statistically significant predictions of target genes for 1430 potential regulatory genes. The regulatory relationships being inferred are either direct relationships, of a transcription factor on its target, or indirect ones, through pathways containing intermediate steps. We analyse the predictions in terms of cocitations, both publications which cite a regulator with any of its inferred targets and cocitations of any genes in a target list. Conclusions The most striking observation from the results is the greater number of inter-chromosomal regulatory relationships involving repression compared to those involving activation. The complete results of the meta-analysis are presented in the database METAMATCHED. We anticipate that the predictions contained in the database will be useful in informing experiments and in helping to construct networks of regulatory relationships. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2100-5) contains supplementary material, which is available to authorized users.
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34
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Yoon TM, Kim SA, Cho WS, Lee DH, Lee JK, Park YL, Lee KH, Lee JH, Kweon SS, Chung IJ, Lim SC, Joo YE. SOX4 expression is associated with treatment failure and chemoradioresistance in oral squamous cell carcinoma. BMC Cancer 2015; 15:888. [PMID: 26555193 PMCID: PMC4641419 DOI: 10.1186/s12885-015-1875-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 10/30/2015] [Indexed: 01/01/2023] Open
Abstract
Background In humans, sex-determining region-Y (SRY) related high-mobility-group box 4 (SOX4) is linked to development and tumorigenesis. SOX4 is over-expressed in several cancers and has prognostic significance. This study evaluated whether SOX4 affects oncogenic behavior and chemoradiotherapy response in head and neck squamous cell carcinoma (HNSCC) cells, and documented the relationship between its expression and prognosis in oral squamous cell carcinoma (OSCC). Methods We used small interfering RNA in HNSCC cells to evaluate the effect of SOX4 on cell proliferation, apoptosis, chemoradiation-induced apoptosis, invasion, and migration. SOX4 expression in OSCC tissues was investigated by immunohistochemistry. Results SOX4 knockdown (KO) decreased cell proliferation and induced apoptosis by activating caspases-3 and −7, and poly-ADP ribose polymerase and suppressing X-linked inhibitor of apoptosis protein in HNSCC cells; it also enhanced radiation/cisplatin-induced apoptosis; and suppressed tumor cell invasion and migration. Immunostaining showed SOX4 protein was significantly increased in OSCC tissues compared with adjacent normal mucosa. SOX4 expression was observed in 51.8 % of 85 OSCC tissues, and was significantly correlated with treatment failure (P = 0.032) and shorter overall survival (P = 0.036) in patients with OSCC. Conclusions SOX4 may contribute to oncogenic phenotypes of HNSCC cells by promoting cell survival and causing chemoradioresistance. It could be a potential prognostic marker for OSCC. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1875-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tae Mi Yoon
- Departments of Otorhinolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Sun-Ae Kim
- Departments of Otorhinolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Wan Seok Cho
- Departments of Otorhinolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Dong Hoon Lee
- Departments of Otorhinolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Joon Kyoo Lee
- Departments of Otorhinolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Young-Lan Park
- Departments of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Kyung-Hwa Lee
- Departments of Pathology, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Jae Hyuk Lee
- Departments of Pathology, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Sun-Seog Kweon
- Departments of Preventive Medicine, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Ik-Joo Chung
- Departments of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Sang Chul Lim
- Departments of Otorhinolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
| | - Young-Eun Joo
- Departments of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, 8 Hak-Dong, Dong-Ku, Gwangju, 501-757, South Korea.
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Shen H, Blijlevens M, Yang N, Frangou C, Wilson KE, Xu B, Zhang Y, Zhang L, Morrison CD, Shepherd L, Hu Q, Zhu Q, Wang J, Liu S, Zhang J. Sox4 Expression Confers Bladder Cancer Stem Cell Properties and Predicts for Poor Patient Outcome. Int J Biol Sci 2015; 11:1363-75. [PMID: 26681916 PMCID: PMC4671994 DOI: 10.7150/ijbs.13240] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/28/2015] [Indexed: 12/26/2022] Open
Abstract
Genetic and epigenetic alterations have been identified as to contribute directly or indirectly to the generation of transitional cell carcinoma of the urinary bladder (TCC-UB). We have previously found that amplification of chromosome 6p22 is significantly associated with the muscle-invasive rather than superficial TCC-UB. Here, we demonstrated that Sox4, one of the candidate oncogenes located within the chromosome 6p22 amplicon, confers bladder cancer stem cell (CSC) properties. Down-regulation of Sox4 led to the inhibition of cell migration, colony formation as well as mesenchymal-to-epithelial transition (MET). Interestingly, knockdown of Sox4 also reduced the sphere formation, enriched cell population with high levels of aldehyde dehydrogenase (ALDH high) and tumor formation potential. Using gene expression profiling, we further identified novel Sox4 target genes. Last, immunohistochemistry analysis of human bladder tumor tissue microarrays (TMAs) indicated that high Sox4 expression was correlated with advanced cancer stages and poor survival rate. In summary, our data show that Sox4 is an important regulator of the bladder CSC properties and it may serve as a biomarker of the aggressive phenotype in bladder cancer.
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Affiliation(s)
- He Shen
- 1. Department of Cancer Genetics
| | - Maxime Blijlevens
- 1. Department of Cancer Genetics; ; 4. VU medical center, Cancer Center Amsterdam, Laboratory Medical Oncology, De Boelelaan 1118, 1081 HV Amsterdam, The Netherlands
| | - Nuo Yang
- 1. Department of Cancer Genetics
| | | | | | - Bo Xu
- 2. Department of Pathology
| | - Yinglong Zhang
- 1. Department of Cancer Genetics; ; 5. Orthopaedic Oncology Institute, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Lirui Zhang
- 1. Department of Cancer Genetics; ; 6. Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi 710061, P.R. China
| | | | - Lori Shepherd
- 3. Center for Biostatistics & Bioinformatics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo NY 14263
| | - Qiang Hu
- 3. Center for Biostatistics & Bioinformatics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo NY 14263
| | - Qianqian Zhu
- 3. Center for Biostatistics & Bioinformatics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo NY 14263
| | - Jianmin Wang
- 3. Center for Biostatistics & Bioinformatics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo NY 14263
| | - Song Liu
- 3. Center for Biostatistics & Bioinformatics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo NY 14263
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Liu Y, Li Y, Liu J, Wu Y, Zhu Q. MicroRNA-132 inhibits cell growth and metastasis in osteosarcoma cell lines possibly by targeting Sox4. Int J Oncol 2015; 47:1672-84. [PMID: 26352673 PMCID: PMC4599193 DOI: 10.3892/ijo.2015.3147] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 08/07/2015] [Indexed: 01/26/2023] Open
Abstract
Increasing evidence has confirmed that dysregulation of microRNAs (miRNAs) can contribute to the progression and metastasis of human tumors. Previous studies have shown that dysregulation of microRNAs (miRNAs) can contribute to the progression and metastasis of human tumors. However, the precise mechanisms of miR-132 in osteosarcoma have not been well clarified. Real-time PCR was performed to detect the expression of miR-132 in osteosarcoma cell lines. miR-132 mimic, miR-132 inhibitor and negative control were transfected into osteosarcoma cells and the effects of miR-132 on the cell growth and metastasis were investigated. Furthermore, protein level of Sox4 was measured by western blotting. Luciferase assays were performed to validate Sox4 as miR-132 target in osteosarcoma cells. We found that miR-132 was downregulated in osteosarcoma cell lines. Introduction of miR-132 significantly inhibited proliferation, arrested cell cycle and induced apoptosis in osteosarcoma cells. Besides, invasion and epithelial-mesenchymal transition (EMT) of osteosarcoma cells was suppressed by overexpressing miR-132. However, downregulation of miR-132 promoted cell growth and metastasis in osteosarcoma cells. Bioinformatics analysis predicted that Sox4 was a potential target gene of miR-132. Luciferase reporter assay demonstrated that miR-132 could directly target Sox4. Moreover, the low level of miR-132 was associated with increased expression of Sox4 in osteosarcoma cells. Sox4 inhibition suppressed cell malignant behaviors. Overexpression of Sox4 in osteosarcoma cells transfected with miR-132 mimic partially reversed the inhibitory effect of miR-132. In conclusion, miR-132 inhibited cell growth and metastasis in osteosarcoma cells by downregulation of Sox4, and knockdown of Sox4 was essential for the miR-132-inhibited cell growth and metastasis in osteosarcoma cells.
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Affiliation(s)
- Yulong Liu
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130031, P.R. China
| | - Ye Li
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130031, P.R. China
| | - Jingchen Liu
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130031, P.R. China
| | - Yuntao Wu
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130031, P.R. China
| | - Qingsan Zhu
- Department of Orthopaedic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130031, P.R. China
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Yang M, Wang J, Wang L, Shen C, Su B, Qi M, Hu J, Gao W, Tan W, Han B. Estrogen induces androgen-repressed SOX4 expression to promote progression of prostate cancer cells. Prostate 2015; 75:1363-75. [PMID: 26015225 DOI: 10.1002/pros.23017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 04/22/2015] [Indexed: 11/08/2022]
Abstract
BACKGROUND The sex determing region Y-box 4 (SOX4) gene is a critical developmental transcriptional factor that is overexpressed in prostate cancer (PCa). While we and others have investigated the role of SOX4 overexpression in PCa, the molecular mechanism underlying its aberrant expression remains unclear. METHODS Immunohistochemistry were utilized to detect SOX4 expression and the correlation between estrogen receptor β (ERβ), androgen receptor (AR) and SOX4 in a cohort of 94 clinical specimens. Real-time quantitative PCR and Western blotting were used to study the transcript and protein expression levels. Immunofluorescence staining and co-immunoprecipitation were performed to assess the interaction and subcellular location of ERβ and AR. Chromatin immunoprecipitation (ChIP) assays and Luciferase reporter assays were performed to explore the binding and transcriptional activities of ERβ and AR to the SOX4 promoter. Cellular function was evaluated by MTS, invasion and wound healing assays. RESULTS SOX4 expression is up-regulated in Castration-Resistant Prostate Cancer (CRPC) tumors compared to hormone-dependent PCa (HDPC) cases. Increased expression was also observed in PCa cells after long-term androgen-deprivation treatment (ADT). In vitro data indicated that SOX4 is an AR transcriptional target and down-regulated by dihydrotestosterone (DHT) via AR. 17β-estradiol (E2) up-regulates SOX4 expression in the absence of androgen through the formation of a protein complex between ERβ and AR. Knockdown of AR or ERβ blocks the E2-induced SOX4 expression. ChIP assays confirmed that both ERβ and AR bind to the SOX4 promoter in response to E2. Functionally, silencing SOX4 significantly attenuates the proliferative effect, as well as the capacity of migration and invasion of E2 on PCa cells. Clinically, overexpression of SOX4 is significantly associated with ERβ expression in PCa. In addition, this association is still retained in CRPC patients with poor prognosis. CONCLUSION These findings suggest that SOX4 is a novel DHT-repressed AR-target gene. E2 could promote proliferation of PCa cells through the up-regulation of SOX4 under androgen-depleted environment. Our data provides a possible molecular basis for the overexpression of SOX4 in CRPC and may facilitate the detection and prevention of the emergence of CRPC.
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Affiliation(s)
- Muyi Yang
- Department of Pathology, Shandong University Medical School, Jinan, China
| | - Jing Wang
- Department of Pathology, The Fourth People's Hospital of Jinan, Jinan, China
| | - Lin Wang
- Department of Pathology, Shandong University Medical School, Jinan, China
- Research Center for Medicinal Biotechnology, Shandong Academy of Medicinal Sciences, Jinan, China
| | - Chengwu Shen
- Department of Pharmacy, Shandong Provincial Hospital, Jinan, China
| | - Bo Su
- Department of Neurobiology, Shandong University Medical School, Jinan, China
| | - Mei Qi
- Department of Pathology, Shandong University Medical School, Jinan, China
| | - Jing Hu
- Department of Pathology, Shandong University Medical School, Jinan, China
| | - Wei Gao
- Department of Pathology, Jinan Central Hospital, Jinan, China
| | - Weiwei Tan
- Department of Pathology, Shandong University Medical School, Jinan, China
| | - Bo Han
- Department of Pathology, Shandong University Medical School, Jinan, China
- Department of Pathology, Shandong University Qilu Hospital, Jinan, China
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38
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Xiao L, Zhou X, Liu F, Hu C, Zhu X, Luo Y, Wang M, Xu X, Yang S, Kanwar YS, Sun L. MicroRNA-129-5p modulates epithelial-to-mesenchymal transition by targeting SIP1 and SOX4 during peritoneal dialysis. J Transl Med 2015; 95:817-832. [PMID: 25961171 PMCID: PMC4863710 DOI: 10.1038/labinvest.2015.57] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 02/09/2015] [Accepted: 03/18/2015] [Indexed: 12/16/2022] Open
Abstract
Peritoneal dialysis (PD) is the most readily feasible home-dialysis method for renal replacement therapy. However, repeated use of PD can lead to induction of mesothelial/epithelial-mesenchymal transition (MMT/EMT) and fibrosis, eventually leading to ultrafiltration failure and discontinuation of PD. MicroRNA-129-5p (miR-129-5p) is believed to be a potent downstream inhibitor of TGF-β1 in renal fibrosis, but the effect of miR-129-5p on MMT/EMT relevant to PD is unknown. In this study, as determined by microRNA array analysis and confirmed by northern blot analysis and real-time PCR, we demonstrate that miRNA-129-5p is decreased in mesothelial cells isolated from effluent of patients having PD for more than 6 months extending to several years compared with those who have undergone PD for less than 6 months. The decreased expression of miR-129-5p was accompanied with alterations in EMT-related genes and the expression of respective proteins in vivo. In addition, in in vitro studies we noted that the expression of E-cadherin and claudin-1 were significantly reduced with increased cell migration in HMrSV5, a human peritoneal mesothelial cell line (HPMC), treated with TGF-β1, whereas expression of vimentin, fibronectin and transcription factors SIP1 and SOX4 increased significantly, as assessed by real-time PCR, western blot analysis and immunofluorescence microscopy. Furthermore, alteration in EMT-related genes and proteins were reversed by overexpression of miR-129-5p. No effect was observed in cells treated with miR-negative control. Meanwhile, inhibition of SIP1 and SOX4 with their respective siRNA also could decrease the expression of EMT-related genes and protein levels in HPMCs induced with TGF-β1. Finally, we demonstrate that SIP1 can inhibit the promoter activity of E-cadherin while enhancing the promoter activity of vimentin. We also observed that miR-129-5p could directly target the 3'UTR of SIP1 and SOX4 genes, and repressed their post-transcriptional activities. These data suggest that there is a novel TGF-β1/miR-129-5p/SIP-1 or SOX4 pathway that has a significant role in MMT and fibrosis in the setting of PD.
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Affiliation(s)
- Li Xiao
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xun Zhou
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fuyou Liu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chun Hu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xuejing Zhu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ying Luo
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ming Wang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoxuan Xu
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shikun Yang
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yashpal S Kanwar
- Departments of Pathology and Medicine, Northwestern University, Chicago, IL, USA
| | - Lin Sun
- Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Hepatitis B virus replication and sex-determining region Y box 4 production are tightly controlled by a novel positive feedback mechanism. Sci Rep 2015; 5:10066. [PMID: 25970172 PMCID: PMC4429541 DOI: 10.1038/srep10066] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 03/27/2015] [Indexed: 12/15/2022] Open
Abstract
Hepatitis B virus (HBV) infection is a major cause of liver diseases. However, the mechanisms underlying HBV infection and pathogenesis remain largely unknown. The sex-determining region Y box 4 (Sox4) is a transcriptional factor, which preferentially regulates the development of various organs, tissues, and cancers. But, the role of Sox4 in viral infection and pathogenesis has not been elucidated. Here, we demonstrated that Sox4 is up-regulated by HBV, and revealed the mechanism by which HBV regulates Sox4 expression. First, HBV stimulates Sox4 expression through transcriptional factor Yin Yang 1 (YY1), which binds to Sox4 promoter to activate Sox4 transcriptional activity. Second, miR-335, miR-129-2 and miR-203 inhibit Sox4 expression by targeting its mRNA 3’UTR, while HBV suppresses the microRNAs expression, resulting in up-regulating Sox4 post-transcriptionally. Third, Sox4 protein is degraded by proteasome, while HBV surface protein (HBsAg) prevents Sox4 from degradation by directly interacting with the protein, thereby enhancing Sox4 production post-translationlly. More interestingly, HBV-activated Sox4 in turn facilitates HBV replication by direct binding to the viral genome via its HMG box. Thus, this study revealed a novel positive feedback mechanism by which Sox4 production and HBV replication are tightly correlated.
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Min XS, Huang P, Liu X, Dong C, Jiang XL, Yuan ZT, Mao LF, Chang S. Bioinformatics analyses of significant prognostic risk markers for thyroid papillary carcinoma. Tumour Biol 2015; 36:7457-63. [PMID: 25908172 DOI: 10.1007/s13277-015-3410-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 03/30/2015] [Indexed: 11/28/2022] Open
Abstract
This study was aimed to identify the prognostic risk markers for thyroid papillary carcinoma (TPC) by bioinformatics. The clinical data of TPC and their microRNAs (miRNAs) and genes expression profile data were downloaded from The Cancer Genome Atlas. Elastic net-Cox's proportional regression hazards model (EN-COX) was used to identify the prognostic associated factors. The receiver operating characteristic (ROC) curve and Kaplan-Meier (KM) curve were used to screen the significant prognostic risk miRNA and genes. Then, the target genes of the obtained miRNAs were predicted followed by function prediction. Finally, the significant risk genes were performed literature mining and function analysis. Total 1046 miRNAs and 20531 genes in 484 cases samples were identified after data preprocessing. From the EN-COX model, 30 prognostic risk factors were obtained. Based on the 30 risk factors, 3 miRNAs and 11 genes were identified from the ROC and KM curves. The target genes of miRNA-342 such as B-cell CLL/lymphoma 2 (BCL2) were mainly enriched in the biological process related to cellular metabolic process and Disease Ontology terms of lymphoma. The target genes of miRNA-93 were mainly enriched in the pathway of G1 phase. Among the 11 prognostic risk genes, v-maf avian musculoaponeurotic fibrosarcoma oncogene homologue F (MAFF), SRY (sex-determining region Y)-box 4 (SOX4), and retinoic acid receptor, alpha (RARA) encoded transcription factors. Besides, RARA was enriched in four pathways. These prognostic markers such as miRNA-93, miRNA-342, RARA, MAFF, SOX4, and BCL2 may be used as targets for TPC chemoprevention.
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Affiliation(s)
- Xiao-Shan Min
- Department of Ophthalmology, Xiangya Hospital of Central South University, Changsha, Hunan, 410008, Peoples Republic of China
| | - Peng Huang
- Department of General Surgery, Xiangya Hospital of Central South University, #87 Xiangya Road, Changsha, Hunan, 410008, Peoples Republic of China
| | - Xu Liu
- Department of General Surgery, Xiangya Hospital of Central South University, #87 Xiangya Road, Changsha, Hunan, 410008, Peoples Republic of China
| | - Chao Dong
- Department of General Surgery, Xiangya Hospital of Central South University, #87 Xiangya Road, Changsha, Hunan, 410008, Peoples Republic of China
| | - Xiao-Lin Jiang
- Department of General Surgery, Xiangya Hospital of Central South University, #87 Xiangya Road, Changsha, Hunan, 410008, Peoples Republic of China
| | - Zheng-Tai Yuan
- Department of General Surgery, Xiangya Hospital of Central South University, #87 Xiangya Road, Changsha, Hunan, 410008, Peoples Republic of China
| | - Lin-Feng Mao
- Department of General Surgery, Xiangya Hospital of Central South University, #87 Xiangya Road, Changsha, Hunan, 410008, Peoples Republic of China
| | - Shi Chang
- Department of General Surgery, Xiangya Hospital of Central South University, #87 Xiangya Road, Changsha, Hunan, 410008, Peoples Republic of China.
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Xue TC, Zhang L, Ren ZG, Chen RX, Cui JF, Ge NL, Ye SL. Sex-determination gene SRY potentially associates with poor prognosis but not sex bias in hepatocellular carcinoma. Dig Dis Sci 2015; 60:427-35. [PMID: 25274159 DOI: 10.1007/s10620-014-3377-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 09/24/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Gender disparity is well known in hepatocellular carcinoma (HCC). SRY is a critical sex-determination gene involved in embryonic development. AIM The potential relevance of SRY to HCC progression was evaluated. METHODS SRY expression in HCC cell lines and tissues was evaluated. Invasion and wound healing assays were used to evaluate the role of SRY in HCC cell migration. The prognostic value of SRY for HCC patient survival was evaluated. RESULTS SRY was highly expressed in HCC cell lines and tumor tissues. Downregulation of SRY expression decreased migration and invasion potential of HCC cells. High SRY levels correlated with poor HCC patient survival. Additionally, neither spatial position nor expression intensity of SRY was correlated with HCC gender disparity. CONCLUSIONS High levels of SRY expression correlated with cancer progression and poor HCC patient survival. However, high SRY levels are not significantly correlated with HCC sex bias.
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Affiliation(s)
- Tong-Chun Xue
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China,
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Increased expression of SOX4 is a biomarker for malignant status and poor prognosis in patients with non-small cell lung cancer. Mol Cell Biochem 2015; 402:75-82. [PMID: 25567207 DOI: 10.1007/s11010-014-2315-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 12/20/2014] [Indexed: 12/22/2022]
Abstract
The aim of the present study was to analyze the expression of sex-determining region Y-related high mobility group box 4 (SOX4) in non-small cell lung cancer (NSCLC) and its correlation with clinicopathologic characteristics, including the survival of NSCLC patients. To observe initially the expression status of SOX4 in lung squamous cell carcinoma and adenocarcinoma at gene expression omnibus. The expression of SOX4 mRNA and protein was examined in NSCLC tissues and normal lung tissues through real-time PCR and immunohistochemistry. Meanwhile, the relationship of SOX4 expression levels with clinical characteristics of 168 NSCLC patients was analyzed by immunohistochemistry. Univariate and multivariate analyses were performed to determine the association between SOX4 expression and prognosis of NSCLC patients. In our results, SOX4 expression was increased in NSCLC tissues compared with paired normal lung tissues in microarray data (GSE3268). SOX4 mRNA and protein expression were markedly higher in NSCLC tissues than in normal lung tissues (P = 0.001 and P = 0.001, respectively). Using immunohistochemistry, high levels of SOX4 protein were positively correlated with status of differentiated degree (high vs. middle, P = 0.004; high vs. low, P < 0.001), clinical stage (I-II vs. III-IV, P < 0.001), T classification (T1-T2 vs. T3-T4, P = 0.004), N classification (N0-N1 vs. N2-N3, P = 0.002), and M classification (M0 vs. M1, P = 0.011) in NSCLC. Moreover, the higher level of SOX4 expression was markedly correlated with poor overall survival in NSCLC patients (P < 0.001). Multivariate analysis suggested that increased SOX4 expression was a poor independent prognostic predictor for NSCLC patients (P = 0.002). In conclusion, SOX4 plays an important role on NSCLC progression and prognosis and may serve as a convictive prognostic biomarker for NSCLC patients.
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Liu Y, Kaneda R, Leja TW, Subkhankulova T, Tolmachov O, Minchiotti G, Schwartz RJ, Barahona M, Schneider MD. Hhex and Cer1 mediate the Sox17 pathway for cardiac mesoderm formation in embryonic stem cells. Stem Cells 2015; 32:1515-26. [PMID: 24585688 PMCID: PMC4260090 DOI: 10.1002/stem.1695] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 01/28/2014] [Accepted: 02/11/2014] [Indexed: 12/11/2022]
Abstract
Cardiac muscle differentiation in vivo is guided by sequential growth factor signals, including endoderm-derived diffusible factors, impinging on cardiogenic genes in the developing mesoderm. Previously, by RNA interference in AB2.2 mouse embryonic stem cells (mESCs), we identified the endodermal transcription factor Sox17 as essential for Mesp1 induction in primitive mesoderm and subsequent cardiac muscle differentiation. However, downstream effectors of Sox17 remained to be proven functionally. In this study, we used genome-wide profiling of Sox17-dependent genes in AB2.2 cells, RNA interference, chromatin immunoprecipitation, and luciferase reporter genes to dissect this pathway. Sox17 was required not only for Hhex (a second endodermal transcription factor) but also for Cer1, a growth factor inhibitor from endoderm that, like Hhex, controls mesoderm patterning in Xenopus toward a cardiac fate. Suppressing Hhex or Cer1 blocked cardiac myogenesis, although at a later stage than induction of Mesp1/2. Hhex was required but not sufficient for Cer1 expression. Over-expression of Sox17 induced endogenous Cer1 and sequence-specific transcription of a Cer1 reporter gene. Forced expression of Cer1 was sufficient to rescue cardiac differentiation in Hhex-deficient cells. Thus, Hhex and Cer1 are indispensable components of the Sox17 pathway for cardiopoiesis in mESCs, acting at a stage downstream from Mesp1/2.
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Affiliation(s)
- Yu Liu
- Center for Cardiovascular Development, Baylor College of Medicine, Houston, Texas, USA; Institute for Biosciences and Technology, Texas A&M University Health Science Center, Houston, Texas, USA
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Rajurkar M, Huang H, Cotton JL, Brooks JK, Sicklick J, McMahon AP, Mao J. Distinct cellular origin and genetic requirement of Hedgehog-Gli in postnatal rhabdomyosarcoma genesis. Oncogene 2014; 33:5370-8. [PMID: 24276242 PMCID: PMC4309268 DOI: 10.1038/onc.2013.480] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 09/09/2013] [Accepted: 09/24/2013] [Indexed: 12/20/2022]
Abstract
Dysregulation of the Hedgehog (Hh)-Gli signaling pathway is implicated in a variety of human cancers, including basal cell carcinoma (BCC), medulloblastoma (MB) and embryonal rhabdhomyosarcoma (eRMS), three principle tumors associated with human Gorlin syndrome. However, the cells of origin of these tumors, including eRMS, remain poorly understood. In this study, we explore the cell populations that give rise to Hh-related tumors by specifically activating Smoothened (Smo) in both Hh-producing and -responsive cell lineages in postnatal mice. Interestingly, we find that unlike BCC and MB, eRMS originates from the stem/progenitor populations that do not normally receive active Hh signaling. Furthermore, we find that the myogenic lineage in postnatal mice is largely Hh quiescent and that Pax7-expressing muscle satellite cells are not able to give rise to eRMS upon Smo or Gli1/2 overactivation in vivo, suggesting that Hh-induced skeletal muscle eRMS arises from Hh/Gli quiescent non-myogenic cells. In addition, using the Gli1 null allele and a Gli3 repressor allele, we reveal a specific genetic requirement for Gli proteins in Hh-induced eRMS formation and provide molecular evidence for the involvement of Sox4/11 in eRMS cell survival and differentiation.
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Affiliation(s)
- Mihir Rajurkar
- Department of Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605
| | - He Huang
- Department of Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605
- Department of Histology & Embryology, Xiangya School of Medicine, Central South University, Changsha, P.R. China
| | - Jennifer L. Cotton
- Department of Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605
| | - Julie K. Brooks
- Department of Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605
| | - Jason Sicklick
- Division of Surgical Oncology, Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093
| | - Andrew P. McMahon
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center for Regenerative Medicine and Stem Cell Research, WM Keck School of Medicine of the University of Southern California, Los Angeles, CA 90015
| | - Junhao Mao
- Department of Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605
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Wang W, Zhang J, Zhan X, Lin T, Yang M, Hu J, Han B, Hu S. SOX4 is associated with poor prognosis in cholangiocarcinoma. Biochem Biophys Res Commun 2014; 452:614-21. [PMID: 25181339 DOI: 10.1016/j.bbrc.2014.08.124] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 08/23/2014] [Indexed: 02/08/2023]
Abstract
Overexpressions of EGFR and HER2 are thought to be prognostic factors of cholangiocarcinoma (CCA). The SOX4 transcription factor is involved in the development and cell fate decision. Although up-regulation of SOX4 has been described in multiple human malignancies, the prognostic value of SOX4 and its relationship to EGFR/HER2 in CCA remain unclear. In the current study, we showed that SOX4 and EGFR were overexpressed in 17 (29.3%), and 13 (22.4%) of the 58 intrahepatic cholangiocarcinomas (IHCCs), as well as 28 (29.8%), and 33 (35.1%) of the 94 extrahepatic cholangiocarcinomas (EHCCs), respectively. Overexpression of HER2 was exclusively identified in EHCCs, with the rate being 4.4% (4/90). In all, amplification of EGFR was identified in 1.8% (1/52) of IHCC cases, and in 2% (3/82) of EHCC cases. By contrast, HER2 amplification was present only in 3.5% (3/94) of the EHCC cases. Notably, Kaplan-Meier survival analysis suggested that SOX4 expression is a significant prognostic factor for poor prognosis in IHCC patients. Importantly, our findings suggested significant association of SOX4 and EGFR expression both in IHCC (P<0.001) and EHCC (P=0.014). SOX4 may modulate expression of EGFR, and SOX4+/EGFR+ defines a subset of CCA patients with poor prognosis. Finally, in vitro data indicated that SOX4 inhibits cellular migratory capacity and promotes epithelial-mesenchymal transition (EMT) process of CCA cells. Collectively, our results define an important role for SOX4 in CCA by orchestrating EMT and modulation on EGFR expression. SOX4 expression may serve as a prognostic marker for patients with IHCC.
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Affiliation(s)
- Weishan Wang
- Department of General Surgery, Shandong University Qilu Hospital, Jinan, China; Department of General Surgery, Yishui Central Hospital, Linyi, China
| | - Jing Zhang
- Department of Pharmacy, Shandong Provincial Hospital, Jinan, China
| | - Xuemei Zhan
- Department of Pathology, Linyi People's Hospital, Linyi, China
| | - Tao Lin
- Department of Surgery, Jinan Central Hospital, Jinan, China
| | - Muyi Yang
- Department of Pathology, Shandong University Medical School, Jinan, China
| | - Jing Hu
- Department of Pathology, Shandong University Medical School, Jinan, China
| | - Bo Han
- Department of Pathology, Shandong University Medical School, Jinan, China; Department of Pathology, Shandong University Qilu Hospital, Jinan, China.
| | - Sanyuan Hu
- Department of General Surgery, Shandong University Qilu Hospital, Jinan, China.
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Newton R, Wernisch L. A meta-analysis of multiple matched copy number and transcriptomics data sets for inferring gene regulatory relationships. PLoS One 2014; 9:e105522. [PMID: 25148247 PMCID: PMC4141782 DOI: 10.1371/journal.pone.0105522] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 07/21/2014] [Indexed: 12/25/2022] Open
Abstract
Inferring gene regulatory relationships from observational data is challenging. Manipulation and intervention is often required to unravel causal relationships unambiguously. However, gene copy number changes, as they frequently occur in cancer cells, might be considered natural manipulation experiments on gene expression. An increasing number of data sets on matched array comparative genomic hybridisation and transcriptomics experiments from a variety of cancer pathologies are becoming publicly available. Here we explore the potential of a meta-analysis of thirty such data sets. The aim of our analysis was to assess the potential of in silico inference of trans-acting gene regulatory relationships from this type of data. We found sufficient correlation signal in the data to infer gene regulatory relationships, with interesting similarities between data sets. A number of genes had highly correlated copy number and expression changes in many of the data sets and we present predicted potential trans-acted regulatory relationships for each of these genes. The study also investigates to what extent heterogeneity between cell types and between pathologies determines the number of statistically significant predictions available from a meta-analysis of experiments.
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Affiliation(s)
- Richard Newton
- Biostatistics Unit, Medical Research Council, Cambridge, United Kingdom
- * E-mail:
| | - Lorenz Wernisch
- Biostatistics Unit, Medical Research Council, Cambridge, United Kingdom
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Thu KL, Becker-Santos DD, Radulovich N, Pikor LA, Lam WL, Tsao MS. SOX15 and other SOX family members are important mediators of tumorigenesis in multiple cancer types. Oncoscience 2014; 1:326-35. [PMID: 25594027 PMCID: PMC4278306 DOI: 10.18632/oncoscience.46] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 05/31/2014] [Indexed: 12/12/2022] Open
Abstract
SOX genes are transcription factors with important roles in embryonic development and carcinogenesis. The SOX family of 20 genes is responsible for regulating lineage and tissue specific gene expression patterns, controlling numerous developmental processes including cell differentiation, sex determination, and organogenesis. As is the case with many genes involved in regulating development, SOX genes are frequently deregulated in cancer. In this perspective we provide a brief overview of how SOX proteins can promote or suppress cancer growth. We also present a pan-cancer analysis of aberrant SOX gene expression and highlight potential molecular mechanisms responsible for their disruption in cancer. Our analyses indicate the prominence of SOX deregulation in different cancer types and reveal potential roles for SOX genes not previously described in cancer. Finally, we summarize our recent identification of SOX15 as a candidate tumor suppressor in pancreatic cancer and propose several research avenues to pursue to further delineate the emerging role of SOX15 in development and carcinogenesis.
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Affiliation(s)
- Kelsie L Thu
- BC Cancer Research Centre, Vancouver, B.C., Canada
| | | | | | | | - Wan L Lam
- BC Cancer Research Centre, Vancouver, B.C., Canada
| | - Ming-Sound Tsao
- Ontario Cancer Institute, Princess Margaret Hospital, University Health Network at the University of Toronto
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Wang L, Li Y, Yang X, Yuan H, Li X, Qi M, Chang YWY, Wang C, Fu W, Yang M, Zhang J, Han B. ERG-SOX4 interaction promotes epithelial-mesenchymal transition in prostate cancer cells. Prostate 2014; 74:647-58. [PMID: 24435928 DOI: 10.1002/pros.22783] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 12/31/2013] [Indexed: 12/27/2022]
Abstract
BACKGROUND Approximately 50% of prostate cancer (PCa) patients in Western countries harbor ERG rearrangement with concurrent ERG overexpression. Overexpression of SOX4 has been shown to play important roles in multiple cancers including PCa. However, the link between these two critical genetic aberrations was unclear. METHODS Fluorescence in situ hybridization and immunohistochemistry were utilized to detect ERG rearrangement and SOX4 expression. Cellular function was evaluated by transwell, wound healing assays, and cell adhesion assay, respectively. Interaction between ERG and SOX4 was arrayed by co-immunoprecipitation, Real-time PCR, Western blot, and siRNA. Direct binding of ERG to the promoter of SOX4, as well as epigenetic modifications of their promoters after TGF-β1 treatment was monitored by chromatin immunoprecipitation. RESULTS ERG regulated SOX4 expression via binding to its promoter. Silencing both of them showed duplicate effects on restoring the epithelial characteristics, increasing cellular adhesion and decreasing capacity of cellular migration and invasion. ERG and SOX4 have cooperative roles in TGF-β1-induced epithelial to mesenchymal transition (EMT) process. In addition, TGF-β1 stimulation increased levels of chromatin marks associated with active genes (H3K4me3, H416ac), and decreased levels of repressive marks (H3K27me3) at their promoters. 5-aza and TSA treatment changed expressions of ERG and SOX4. Clinically, overexpression of SOX4 is associated with ERG rearrangement status in PCa and ERG+/SOX4+ defined a subset of PCa patients with poor prognosis. CONCLUSION Our findings define a key role for ERG/SOX4 in the development of a subset of PCa and highlight the clinical importance of identifying molecularly defined tumor subgroups.
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Affiliation(s)
- Lin Wang
- Department of Pathology, Shandong University Medical School, Jinan, China; Research Center for Medicinal Biotechnology, Shandong Academy of Medicinal Sciences, Jinan, China
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Su Y, Pan L. Identification of logic relationships between genes and subtypes of non-small cell lung cancer. PLoS One 2014; 9:e94644. [PMID: 24743794 PMCID: PMC3990524 DOI: 10.1371/journal.pone.0094644] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 03/18/2014] [Indexed: 11/23/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) has two major subtypes: adenocarcinoma (AC) and squamous cell carcinoma (SCC). The diagnosis and treatment of NSCLC are hindered by the limited knowledge about the pathogenesis mechanisms of subtypes of NSCLC. It is necessary to research the molecular mechanisms related with AC and SCC. In this work, we improved the logic analysis algorithm to mine the sufficient and necessary conditions for the presence states (presence or absence) of phenotypes. We applied our method to AC and SCC specimens, and identified lower and higher logic relationships between genes and two subtypes of NSCLC. The discovered relationships were independent of specimens selected, and their significance was validated by statistic test. Compared with the two earlier methods (the non-negative matrix factorization method and the relevance analysis method), the current method outperformed these methods in the recall rate and classification accuracy on NSCLC and normal specimens. We obtained biomarkers. Among biomarkers, genes have been used to distinguish AC from SCC in practice, and other six genes were newly discovered biomarkers for distinguishing subtypes. Furthermore, NKX2-1 has been considered as a molecular target for the targeted therapy of AC, and other genes may be novel molecular targets. By gene ontology analysis, we found that two biological processes (‘epidermis development’ and ‘cell adhesion’) were closely related with the tumorigenesis of subtypes of NSCLC. More generally, the current method could be extended to other complex diseases for distinguishing subtypes and detecting the molecular targets for targeted therapy.
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Affiliation(s)
- Yansen Su
- Key Laboratory of Image Information Processing and Intelligent Control, School of Automation, Huazhong University of Science and Technology, Wuhan, Hubei, China
- * E-mail: (YS); (LP)
| | - Linqiang Pan
- Key Laboratory of Image Information Processing and Intelligent Control, School of Automation, Huazhong University of Science and Technology, Wuhan, Hubei, China
- * E-mail: (YS); (LP)
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Huang YW, Kuo CT, Chen JH, Goodfellow PJ, Huang THM, Rader JS, Uyar DS. Hypermethylation of miR-203 in endometrial carcinomas. Gynecol Oncol 2014; 133:340-5. [PMID: 24530564 DOI: 10.1016/j.ygyno.2014.02.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/29/2014] [Accepted: 02/06/2014] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Aberrant expression of SOX4 in endometrial cancer has been identified and partially was contributed to hypermethylation of miR-129-2. Other miRNAs are suspected to influence SOX 4 as well. The current study seeks to identify other hypermethylated miRNAs that regulate SOX4 in endometrial carcinomas. METHODS Methylation levels of miRNA promoter regions were measured by combined bisulfite restriction analysis (COBRA) and pyrosequencing assays. Gene expression was determined by RT-qPCR. Methylation level of a miRNA locus was corrected with clinicopathologic factors for 252 gynecological specimens. RESULTS In silico analysis identified 13 miRNA loci bound on the 3'-UTR of SOX4. Using COBRA assays, increased methylation of miR-203, miR-219-2, miR-596, and miR-618 was detected in endometrial cancer cells relative to those seen in a normal cell line and in normal endometrium. Transfection of a miR-203 mimic decreased SOX4 gene expression. Hypermethylation of miR-203 was detected in 52% of type I endometrioid endometrial carcinomas (n=131) but was not seen in any of 10 uninvolved normal endometria (P<0.001). Methylation status of miR-203 was significantly associated with microsatellite instability and MLH1 methylation in endometrial tumors (P<0.001). Furthermore, hypermethylation of miR-203 was found in endometrioid and clear endometrial subtype tumors, but not in cervical squamous cell and ovarian carcinomas. CONCLUSIONS Hypermethylation of miR-203 is a frequent event in endometrial carcinomas and is strongly associated with microsatellite instability and MLH1 methylation status. Thus, miR-203 methylation level might represent a marker for patients with endometrioid and clear endometrial sub-cancers.
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Affiliation(s)
- Yi-Wen Huang
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| | - Chieh-Ti Kuo
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Jo-Hsin Chen
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Paul J Goodfellow
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, OH 43210, USA
| | - Tim H-M Huang
- Department of Molecular Medicine and Cancer Therapy & Research Center, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Janet S Rader
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Denise S Uyar
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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