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Wang T, Huang J, Chen G, Fu J, Li T, Zou X, Yi H. miR-1293 suppresses osteosarcoma progression by modulating drug sensitivity in response to cisplatin treatment. Int Immunopharmacol 2024; 130:111702. [PMID: 38367464 DOI: 10.1016/j.intimp.2024.111702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/13/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
Chemotherapy is considered the primary treatment for osteosarcoma. however, its effectiveness is limited due to drug resistance and toxicity. Thus, identifying novel therapeutic targets to enhance the efficacy of chemotherapy is urgently needed. Here, we identified a novel cisplatin-sensitivity enhancing mechanism via up-regulation of the tumour suppressor gene, miR-1293. Meanwhile, higher levels of miR-1293 observed in prechemotherapy patients were associated with a more favorable prognosis. The mechanism underlying cisplatin upregulated miR-1293 expression involves hypomethylation of the miR-1293 promoter, which blocks the binding of the transcription repressor TFAP2A to the promoter. Furthermore, miR-1293 inhibits osteosarcoma progression by targeting TIMP1 to inactivate the Notch1/Hes1 and TGFBR1/Smad2/3 pathways, thereby promoting tumour cell death. The findings presented herein unveil a novel mechanism for enhancing cisplatin sensitivity and proposed a potential therapeutic strategy for osteosarcoma through pre-chemotherapy supplementation of miR-1293.
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Affiliation(s)
- Tingxuan Wang
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510005, China
| | - Jincheng Huang
- Department of Orthopedics, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450000, China.
| | - Gang Chen
- Department of Orthopedics, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang 441000, China
| | - Jiahui Fu
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou 510005, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an 10032, China.
| | - Xuenong Zou
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510005, China.
| | - Hualin Yi
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510005, China; Guangzhou National Laboratory, Guangzhou 510005, China.
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2
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Smits JPH, Qu J, Pardow F, van den Brink NJM, Rodijk-Olthuis D, van Vlijmen-Willems IMJJ, van Heeringen SJ, Zeeuwen PLJM, Schalkwijk J, Zhou H, van den Bogaard EH. The aryl hydrocarbon receptor regulates epidermal differentiation through transient activation of TFAP2A. J Invest Dermatol 2024:S0022-202X(24)00114-3. [PMID: 38401701 DOI: 10.1016/j.jid.2024.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/26/2024]
Abstract
The aryl hydrocarbon receptor (AHR) is an evolutionary conserved environmental sensor identified as indispensable regulator of epithelial homeostasis and barrier organ function. Molecular signaling cascade and target genes upon AHR activation and their contribution to cell and tissue function are however not fully understood. Multi-omics analyses using human skin keratinocytes revealed that, upon ligand activation, AHR binds open chromatin to induce expression of transcription factors (TFs), e.g., Transcription Factor AP-2α (TFAP2A), as a swift response to environmental stimuli. The terminal differentiation program including upregulation of barrier genes, filaggrin and keratins, was mediated by TFAP2A as a secondary response to AHR activation. The role of AHR-TFAP2A axis in controlling keratinocyte terminal differentiation for proper barrier formation was further confirmed using CRISPR/Cas9 in human epidermal equivalents. Overall, the study provides additional insights into the molecular mechanism behind AHR-mediated barrier function and identifies potential targets for the treatment of skin barrier diseases.
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Affiliation(s)
- Jos P H Smits
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands; Department of Dermatology, University Hospital Düsseldorf, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Jieqiong Qu
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Felicitas Pardow
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands; Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Noa J M van den Brink
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | | | - Simon J van Heeringen
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | - Huiqing Zhou
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands; Department of Human Genetics, Radboudumc.
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands.
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Niu C, Wen H, Wang S, Shu G, Wang M, Yi H, Guo K, Pan Q, Yin G. Potential prognosis and immunotherapy predictor TFAP2A in pan-cancer. Aging (Albany NY) 2024; 16:1021-1048. [PMID: 38265973 PMCID: PMC10866441 DOI: 10.18632/aging.205225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/12/2023] [Indexed: 01/26/2024]
Abstract
BACKGROUND TFAP2A is critical in regulating the expression of various genes, affecting various biological processes and driving tumorigenesis and tumor development. However, the significance of TFAP2A in carcinogenesis processes remains obscure. METHODS In our study, we explored multiple databases including TCGA, GTEx, HPA, cBioPortal, TCIA, and other well-established databases for further analysis to expound TFAP2A expression, genetic alternations, and their relationship with the prognosis and cellular signaling network alternations. GO term and KEGG pathway enrichment analysis as well as GSEA were conducted to examine the common functions of TFAP2A. RT-qPCR, Western Blot and Dual Luciferase Reporter assay were employed to perform experimental validation. RESULTS TFAP2A mRNA expression level was upregulated and its genetic alternations were frequently present in most cancer types. The enrichment analysis results prompted us to investigate the changes in the tumor immune microenvironment further. We discovered that the expression of TFAP2A was significantly associated with the expression of immune checkpoint genes, immune subtypes, ESTIMATE scores, tumor-infiltrating immune cells, and the possible role of TFAP2A in predicting immunotherapy efficacy. In addition, high TFAP2A expression significantly correlated with several ICP genes, and promoted the expression of PD-L1 on mRNA and protein levels through regulating its expression at the transcriptional level. TFAP2A protein level was upregulated in fresh colon tumor tissue samples compared to that in the adjacent normal tissues, which essentially positively correlated with the expression of PD-L1. CONCLUSIONS Our study suggests that targeting TFAP2A may provide a novel and effective strategy for cancer treatment.
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Affiliation(s)
- Chenxi Niu
- Department of Pathology, Xiangya Hospital, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Haixuan Wen
- Department of Pathology, Xiangya Hospital, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Shutong Wang
- Xiangya Medical School, Central South University, Changsha, China
| | - Guang Shu
- Department of Pathology, Xiangya Hospital, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Maonan Wang
- Department of Pathology, Xiangya Hospital, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Hanxi Yi
- Department of Pathology, Xiangya Hospital, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Ke Guo
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Qiong Pan
- Department of Obstetrics and Gynecology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Gang Yin
- Department of Pathology, Xiangya Hospital, School of Basic Medical Sciences, Central South University, Changsha, China
- China-Africa Research Center of Infectious Diseases, School of Basic Medical Sciences, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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Abstract
BACKGROUND Lung cancer is the most common cancer in the world. High Mobility Group AT-Hook 1 (HMGA1) is found to be associated with the glycolytic pathway in a variety of cancers, and abnormal glycolysis function is one of the important characteristics of cancer cells. Therefore, this paper discusses the effect of HMGA1 on glycolysis of lung adenocarcinoma (LUAD) cells METHODS: The mRNA expression data were downloaded from TCGA-LUAD database. Groups were set according to the median expression of HMGA1, followed by GSEA enrichment analysis. The upstream transcriptional regulators of HMGA1 were predicted by bioinformatics. The correlation between HMGA1 and Transcription Factor AP-2 Alpha (TFAP2A) and their expression in LUAD tissues were analyzed as well. mRNA expression levels of HMGA1 and TFAP2A were detected by qRT-PCR. The binding of HMGA1 and TFAP2A was demonstrated by ChIP and dual luciferase reporter assays. Cell function experiments were utilized to assay proliferation, apoptosis, glycolysis ability of LUAD cells, and glycolysis-related protein expression in each treatment group. RESULTS HMGA1 was highly expressed in LUAD patients' tissues and enriched in the glycolytic pathway. Additionally, silencing HMGA1 markedly hampered cell proliferation and glycolysis, and promoted cell apoptosis. The upstream transcriptional regulator TFAP2A was predicted to be highly expressed in LUAD. ChIP and dual luciferase reporter assays confirmed the targeted relationship between HMGA1 and TFAP2A. Cell rescue assay confirmed that TFAP2A promoted glycolysis and LUAD progression by activating HMGA1. CONCLUSION TFAP2A promotes glycolysis, proliferation and hampers apoptosis of LUAD cells by stimulating HMGA1. Hence, TFAP2A/HMGA1 may be a feasible therapeutic target for LUAD. AVAILABILITY OF DATA AND MATERIALS All the data within this manuscript could be gotten from corresponding author at reasonable request.
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Affiliation(s)
- Junjie Zhao
- Department of Thoracic Surgery, The First Hospital of Jiaxing, Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang Province 314000, China
| | - Gang Lan
- Department of Thoracic Surgery, Zhejiang Rongjun Hospital, Jiaxing, Zhejiang Province 314000, China.
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Lian B, Yan S, Li J, Bai Z, Li J. HNRNPC promotes collagen fiber alignment and immune evasion in breast cancer via activation of the VIRMA-mediated TFAP2A/DDR1 axis. Mol Med 2023; 29:103. [PMID: 37528369 PMCID: PMC10394847 DOI: 10.1186/s10020-023-00696-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/07/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Cancers aggressively reorganize collagen in their microenvironment, leading to the evasion of tumor cells from immune surveillance. However, the biological significance and molecular mechanism of collagen alignment in breast cancer (BC) have not been well established. METHODS In this study, BC-related RNA-Seq data were obtained from the TCGA database to analyze the correlation between DDR1 and immune cells. Mouse BC cells EO771 were selected for in vitro validation, and dual-luciferase experiments were conducted to examine the effect of TFAP2A on DDR1 promoter transcription activity. ChIP experiments were performed to assess TFAP2A enrichment on the DDR1 promoter, while Me-RIP experiments were conducted to detect TFAP2A mRNA m6A modification levels, and PAR-CLIP experiments were conducted to determine VIRMA's binding to TFAP2A mRNA and RIP experiments to investigate HNRNPC's recognition of m6A modification on TFAP2A mRNA. Additionally, an in vivo mouse BC transplant model and the micro-physiological system was constructed for validation, and Masson staining was used to assess collagen fiber arrangement. Immunohistochemistry was conducted to identify the number of CD8-positive cells in mouse BC tumors and Collagen IV content in ECM, while CD8 + T cell migration experiments were performed to measure CD8 + T cell migration. RESULTS Bioinformatics analysis showed that DDR1 was highly expressed in BC and negatively correlated with the proportion of anti-tumor immune cell infiltration. In vitro cell experiments indicated that VIRMA, HNRNPC, TFAP2A, and DDR1 were highly expressed in BC cells. In addition, HNRNPC promoted TFAP2A expression and, therefore, DDR1 transcription by recognizing the m6A modification of TFAP2A mRNA by VIRMA. In vivo animal experiments further confirmed that VIRMA and HNRNPC enhanced the TFAP2A/DDR1 axis, promoting collagen fiber alignment, reducing anti-tumor immune cell infiltration, and promoting immune escape in BC. CONCLUSION This study demonstrated that HNRNPC promoted DDR1 transcription by recognizing VIRMA-unveiled m6A modification of TFAP2A mRNA, which enhanced collagen fiber alignment and ultimately resulted in the reduction of anti-tumor immune cell infiltration and promotion of immune escape in BC.
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Affiliation(s)
- Bin Lian
- Department of Surgical Oncology, General Hospital of Ningxia Medical University, No. 804, Shengli Street, Xingqing District, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Shuxun Yan
- Ningxia Medical University, Yinchuan, 750004, China
| | - Jiayi Li
- Northwest University for Nationalities, Lanzhou, 730030, China
| | | | - Jinping Li
- Department of Surgical Oncology, General Hospital of Ningxia Medical University, No. 804, Shengli Street, Xingqing District, Yinchuan, 750004, Ningxia Hui Autonomous Region, China.
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Smits JP, Qu J, Pardow F, van den Brink NJ, Rodijk-Olthuis D, van Vlijmen-Willems IM, van Heeringen SJ, Zeeuwen PL, Schalkwijk J, Zhou H, van den Bogaard EH. The aryl hydrocarbon receptor regulates epidermal differentiation through transient activation of TFAP2A. bioRxiv 2023:2023.06.07.544032. [PMID: 37333234 PMCID: PMC10274772 DOI: 10.1101/2023.06.07.544032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
The aryl hydrocarbon receptor (AHR) is an evolutionary conserved environmental sensor identified as indispensable regulator of epithelial homeostasis and barrier organ function. Molecular signaling cascade and target genes upon AHR activation and their contribution to cell and tissue function are however not fully understood. Multi-omics analyses using human skin keratinocytes revealed that, upon ligand activation, AHR binds open chromatin to induce expression of transcription factors (TFs), e.g., Transcription Factor AP-2α (TFAP2A), as a swift response to environmental stimuli. The terminal differentiation program including upregulation of barrier genes, filaggrin and keratins, was mediated by TFAP2A as a secondary response to AHR activation. The role of AHR-TFAP2A axis in controlling keratinocyte terminal differentiation for proper barrier formation was further confirmed using CRISPR/Cas9 in human epidermal equivalents. Overall, the study provides novel insights into the molecular mechanism behind AHR-mediated barrier function and potential novel targets for the treatment of skin barrier diseases.
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Affiliation(s)
- Jos P.H. Smits
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
- Department of Dermatology, University Hospital Düsseldorf, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Jieqiong Qu
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Felicitas Pardow
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Noa J.M. van den Brink
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | | | - Simon J. van Heeringen
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Patrick L.J.M. Zeeuwen
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
| | - Huiqing Zhou
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
- Department of Human Genetics, Radboudumc
| | - Ellen H. van den Bogaard
- Department of Dermatology, Radboud Research Institute for Medical Innovation, Radboudumc, Nijmegen, The Netherlands
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Yang K, Zhao J, Liu S, Man S. RELA promotes the progression of oral squamous cell carcinoma via TFAP2A-Wnt/β-catenin signaling. Mol Carcinog 2023; 62:641-651. [PMID: 36789977 DOI: 10.1002/mc.23512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 01/26/2023] [Indexed: 02/16/2023]
Abstract
Oral squamous cell carcinoma (OSCC) has emerged as the most prevailing oral malignancy worldwide, characterized by cervical solid lymph node metastasis and strong local invasiveness. Overexpression of Transcription Factor AP-2 alpha (TFAP2A) is observed in a significant proportion of OSCC cases. In this study, we aimed to elucidate the function of TFAP2A in the progression of OSCC and the related molecular signaling pathways. The role of RELA was predicted using bioinformatics analysis. The mRNA abundances of RELA, TFAP2A, and β-catenin were assessed by Western blot and quantitative real-timePCR. The relationship between RELA, TFAP2A, and β-catenin and their correlation with clinicopathological characteristics of OSCC was evaluated. The target of RELA and TFAP2A was identified by the chromatin immunoprecipitation as well as luciferase reporter assay. The colony formation assay and MTS assay were performed to determine the proliferative level of OSCC cells. OSCC cell motility was determined by Transwell assay and wound-healing assay. The protein expressions of epithelial-mesenchymal transition-associated factors were evaluated by Western blot. The expressions of RELA and TFAP2A were elevated in OSCC, and their expressions displayed a positive correlation. The expression levels of RELA and TFAP2A were found to be associated with TNM staging and lymphatic metastasis of OSCC patients. RELA upregulation promoted OSCC progression, as manifested by increased levels of proliferation, invasion, and migration of OSCC cells. We also demonstrated that RELA was directly bound to the promoter of TFAP2A transcription, which activated multiple malignant and metastatic phenotypes. Furthermore, TFAP2A activated the Wnt/β-catenin signaling by targeting the promoter regions of β-catenin. The study found that RELA is critical for promoting the progression of OSCC via the RELA-TFAP2A-Wnt/β-catenin signaling pathway. The RELA-TFAP2A-Wnt/β-catenin signaling pathway is a potential target for reducing the aggressiveness of OSCC.
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Affiliation(s)
- Kaicheng Yang
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Jianguang Zhao
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Shenghui Liu
- Department of Otolaryngology Head and Neck, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Shasha Man
- Department of Stomatology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
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8
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He J, Dong C, Zhang H, Jiang Y, Liu T, Man X. The oncogenic role of TFAP2A in bladder urothelial carcinoma via a novel long noncoding RNA TPRG1-AS1/DNMT3A/CRTAC1 axis. Cell Signal 2023; 102:110527. [PMID: 36410635 DOI: 10.1016/j.cellsig.2022.110527] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Overexpression of TFAP2A has been linked to increased lymph node metastasis in basal-squamous bladder cancer. However, its downstream targets in bladder urothelial carcinoma (BLCA), the most malignant cancer of the urinary tract, remain unclear. In the current study, we aim to explore the function and mechanism of TFAP2A in BLCA. METHODS TFAP2A expression and the prognostic significance in BLCA was analyzed using TCGA and GTEX projects. TFAP2A was knocked-down in BLCA cells to study its impact on glucose uptake, lactate and ATP production, expression of HK2, and the number of vascular meshes formed by HUVEC. The target long noncoding RNAs (lncRNAs) of TFAP2A were predicted by bioinformatics tools, followed by ChIP-qPCR and luciferase assays. The downstream targets of TPRG1-AS1 were analyzed by microarray analysis. Rescue experiments were conducted for validation. RESULTS TFAP2A upregulation in BLCA predicted dismal survival of patients. Loss of TFAP2A inhibited glycolysis (as evidenced by reduced glucose uptake, lactate, ATP production, and the expression of HK2) and angiogenesis (decreased number of vascular meshes formed by HUVEC). TFAP2A promoted the transcription of TPRG1-AS1. TPRG1-AS1 reversed the inhibitory effect of TFAP2A knockdown on glycolysis and angiogenesis in BLCA cells. TPRG1-AS1 inhibited the transcription of CRTAC1 by recruiting a DNA methyltransferase to the promoter of CRTAC1 and increasing the DNA methylation of its promoter. CRTAC1 inhibited glycolysis and angiogenesis in BLCA cells. TFAP2A silencing curbed tumor growth in vivo via the TPRG1-AS1/CRTAC1 axis. CONCLUSION TFAP2A reduces CRTAC1 expression by promoting TPRG1-AS1 transcription, thereby expediting BLCA glycolysis and angiogenesis.
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Affiliation(s)
- Jiani He
- Department of Surgical Oncology and Breast Surgery, The First Hospital of China Medical University, Shenyang 110001, Liaoning, PR China
| | - Changming Dong
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, Liaoning, PR China; Institute of Urology, China Medical University, Shenyang 110001, Liaoning, PR China
| | - Hao Zhang
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, Liaoning, PR China; Institute of Urology, China Medical University, Shenyang 110001, Liaoning, PR China
| | - Yuanjun Jiang
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, Liaoning, PR China; Institute of Urology, China Medical University, Shenyang 110001, Liaoning, PR China
| | - Tao Liu
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, Liaoning, PR China; Institute of Urology, China Medical University, Shenyang 110001, Liaoning, PR China
| | - Xiaojun Man
- Department of Urology, The First Hospital of China Medical University, Shenyang 110001, Liaoning, PR China; Institute of Urology, China Medical University, Shenyang 110001, Liaoning, PR China.
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Wang J, Chen Q, Peng F, Zhao S, Zhang C, Song X, Yu D, Wu Z, Du J, Ni H, Deng H, Deng W. Transcription factor AP-2α activates RNA polymerase III-directed transcription and tumor cell proliferation by controlling expression of c-MYC and p53. J Biol Chem 2023; 299:102945. [PMID: 36707053 PMCID: PMC9999235 DOI: 10.1016/j.jbc.2023.102945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/26/2023] Open
Abstract
Deregulation of transcription factor AP2 alpha (TFAP2A) and RNA polymerase III (Pol III) products is associated with tumorigenesis. However, the mechanism underlying this event is not fully understood and the connection between TFAP2A and Pol III-directed transcription has not been investigated. Here, we report that TFAP2A functions as a positive factor in the regulation of Pol III-directed transcription and cell proliferation. We found TFAP2A is also required for the activation of Pol III transcription induced by the silencing of filamin A, a well-known cytoskeletal protein and an inhibitor in Pol III-dependent transcription identified previously. Using a chromatin immunoprecipitation technique, we showed TFAP2A positively modulates the assembly of Pol III transcription machinery factors at Pol III-transcribed gene loci. We found TFAP2A can activate the expression of Pol III transcription-related factors, including BRF1, GTF3C2, and c-MYC. Furthermore, we demonstrate TFAP2A enhances expression of MDM2, a negative regulator of tumor suppressor p53, and also inhibits p53 expression. Finally, we found MDM2 overexpression can rescue the inhibition of Pol III-directed transcription and cell proliferation caused by TFAP2A silencing. In summary, we identified that TFAP2A can activate Pol III-directed transcription by controlling multiple pathways, including general transcription factors, c-MYC and MDM2/p53. The findings from this study provide novel insights into the regulatory mechanisms of Pol III-dependent transcription and cancer cell proliferation.
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Affiliation(s)
- Juan Wang
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China; School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, China
| | - Qiyue Chen
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Feixia Peng
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Shasha Zhao
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Cheng Zhang
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Xiaoye Song
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Deen Yu
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Zhongyu Wu
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Jiannan Du
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China
| | - Hongwei Ni
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, China.
| | - Huan Deng
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China.
| | - Wensheng Deng
- School of Life Science and Health, Wuhan University of Science and Technology, Wuhan, China.
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Hovland AS, Bhattacharya D, Azambuja AP, Pramio D, Copeland J, Rothstein M, Simoes-Costa M. Pluripotency factors are repurposed to shape the epigenomic landscape of neural crest cells. Dev Cell 2022; 57:2257-2272.e5. [PMID: 36182685 PMCID: PMC9743141 DOI: 10.1016/j.devcel.2022.09.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/28/2022] [Accepted: 09/09/2022] [Indexed: 12/14/2022]
Abstract
Yamanaka factors are essential for establishing pluripotency in embryonic stem cells, but their function in multipotent stem cell populations is poorly understood. Here, we show that OCT4 and SOX2 cooperate with tissue-specific transcription factors to promote neural crest formation. By assessing avian and human neural crest cells at distinct developmental stages, we characterized the epigenomic changes that occur during their specification, migration, and early differentiation. This analysis determined that the OCT4-SOX2 dimer is required to establish a neural crest epigenomic signature that is lost upon cell fate commitment. The OCT4-SOX2 genomic targets in the neural crest differ from those of embryonic stem cells, indicating the dimer displays context-specific functions. Binding of OCT4-SOX2 to neural crest enhancers requires pioneer factor TFAP2A, which physically interacts with the dimer to modify its genomic targets. Our results demonstrate how Yamanaka factors are repurposed in multipotent cells to control chromatin organization and define their developmental potential.
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Affiliation(s)
- Austin S Hovland
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA
| | | | - Ana Paula Azambuja
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Dimitrius Pramio
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Jacqueline Copeland
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Megan Rothstein
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Marcos Simoes-Costa
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Boston Children's Hospital, Boston, MA 02115, USA.
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11
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Yang K, Niu Y, Cui Z, Jin L, Peng S, Dong Z. Long noncoding RNA TFAP2A-AS1 promotes oral squamous cell carcinoma cell growth and movement via competitively binding miR-1297 and regulating TFAP2A expression. Mol Carcinog 2022; 61:865-875. [PMID: 35730908 DOI: 10.1002/mc.23438] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/23/2022] [Accepted: 06/02/2022] [Indexed: 01/17/2023]
Abstract
Oral squamous cell carcinoma (OSCC) is an aggressive and common malignancy in the head and neck, characterized by poor prognosis and high incidence. This study aimed to investigate the role of long noncoding RNA TFAP2A-AS1 in OSCC. The competing endogenous RNA network of TFAP2A-AS1 was constructed by bioinformatics analysis. The expressions of miR-1297, TFAP2A-AS1, and TFAP2A were measured by quantitative reverse transcription-polymerase chain reaction. The correlations of TFAP2A-AS1, miR-1297, and TFAP2A with clinicopathological characteristics of OSCC were assessed. RNA immunoprecipitation and dual-luciferase reporter assay were used to identify the target of miR-1297. Cell proliferation was measured by colony formation assay and [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium] assay. Transwell assay and wound healing assay were performed to assess cell movement. TFAP2A-AS1 and TFAP2A were upregulated in OSCC and their expression levels were positively correlated. The levels of TFAP2A-AS1, miR-1297, and TFAP2A were also associated with lymphatic metastasis and the tumor-node-metastasis (TNM) stage of OSCC patients. TFAP2A-AS1 acted as a miR-1297 sponge. OSCC cell growth and movement were inhibited by miR-1297. Changes in the miR-1297 expression abolished the effects of TFAP2A-AS1 on OSCC cells. Additionally, TFAP2A was a target of miR-1297. TFAP2A promoted OSCC cell growth and migration/invasion, indicating that TFAP2A mediated the effects of TFAP2A-AS1 and miR-1297. TFAP2A-AS1 exerts an oncogenic effect in OSCC via the TFAP2A-AS1/miR-1297/TFAP2A axis, which may provide new targets and strategies for OSCC treatments.
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Affiliation(s)
- Kaicheng Yang
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Yunfeng Niu
- Department of Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Zifeng Cui
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Linyu Jin
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Shixiong Peng
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Zhiming Dong
- Department of Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
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12
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Zhang S, Guo G. Circ_FURIN promotes trophoblast cell proliferation, migration and invasion in preeclampsia by regulating miR-34a-5p and TFAP2A. Hypertens Res 2022; 45:1334-1344. [PMID: 35697768 DOI: 10.1038/s41440-022-00934-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/11/2022] [Accepted: 04/11/2022] [Indexed: 11/09/2022]
Abstract
Emerging evidence has shown that circular RNAs (circRNAs) play vital roles in the progression of diverse human diseases. However, the functions of circRNAs in preeclampsia (PE) are largely unknown. In this study, we aimed to explore the functions of the circRNA furin, paired basic amino acid cleaving enzyme (circ_FURIN) in PE development. qRT-PCR and western blot analyses were conducted to determine the levels of circ_FURIN, miR-34a-5p and transcription factor AP-2 alpha (TFAP2A). A Cell Counting Kit-8 (CCK-8) assay and a 5'-ethynyl-2'-deoxyuridine (EdU) incorporation assay were utilized to evaluate the cell proliferation ability. Transwell assays were adopted to estimate cell migration and invasion. A dual-luciferase reporter assay and an RNA pulldown assay were utilized to analyze the relationships among circ_FURIN, miR-34a-5p and TFAP2A. It was found that circ_FURIN was downregulated in PE placental tissues and hypoxia-treated placental trophoblast cells. Overexpression of circ_FURIN promoted trophoblast cell proliferation, migration and invasion under hypoxic conditions. Circ_FURIN functioned as the sponge for miR-34a-5p. MiR-34a-5p overexpression abrogated the effects of circ_FURIN on the proliferation, migration and invasion of trophoblast cells under hypoxic conditions. In addition, TFAP2A was demonstrated to be the target gene of miR-34a-5p. TFAP2A silencing ameliorated the promotive effects of miR-34a-5p inhibition on trophoblast cell proliferation, migration and invasion under hypoxic conditions. In conclusion, circ_FURIN enhanced trophoblast cell proliferation, migration and invasion under hypoxic conditions by elevating TFAP2A expression through sponging miR-34a-5p.
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Affiliation(s)
- Shuqing Zhang
- Department of Obstetrics, Shanxi Provincial People's Hospital, Taiyuan City, Shanxi Province, China.
| | - Guoxia Guo
- Department of Obstetrics, Shanxi Provincial People's Hospital, Taiyuan City, Shanxi Province, China
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13
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Liang X, Hu C, Han M, Liu C, Sun X, Yu K, Gu H, Zhang J. Solasonine Inhibits Pancreatic Cancer Progression With Involvement of Ferroptosis Induction. Front Oncol 2022; 12:834729. [PMID: 35494004 PMCID: PMC9039314 DOI: 10.3389/fonc.2022.834729] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/04/2022] [Indexed: 12/20/2022] Open
Abstract
Pancreatic cancer is a highly fatal malignant tumor of the digestive system. It is characterized by early metastasis and high mortality rates. Solasonine, a steroidal alkaloid, is derived from Solanum nigrum L., a natural herb. Solasonine is associated with excellent anti-tumor effects, however, its effects on pancreatic cancer have not been fully established. Pancreatic cancer cells (PANC-1 and CFPAC-1) were used to verify the in vitro and in vivo effects of solasonine. Metabolomics were used to evaluate its underlying mechanisms. Solasonine promoted PANC-1 and CFPAC-1 cell apoptosis while inhibiting their proliferation, migration and invasion. Mouse xenograft models and metastasis models of ANC-1 and CFPAC-1 confirmed that solasonine blocked tumor formation and metastasis. Metabolomics confirmed the effects of solasonine on glutathione metabolism and SLC7A11-mediated ferroptosis. Furthermore, Co-Immunoprecipitation and Duolink®in situ PLA confirmed that OTUB1, a deubiquitylating enzyme, interacted with SLC7A11 and solasonine to enhance ubiquitinated degradation of SLC7A11 in PANC-1 and CFPAC-1 cells. Besides, molecular docking confirmed that solasonine directly bound TFAP2A and suppressed its protein levels. Bioinformatics and luciferase assays revealed that TFAP2A binds the OTUB1 promoter region, thereby promoting its transcription. In summary, solasonine inhibits the TFAP2A/OTUB1 SLC7A11 axis to activate ferroptosis and suppress pancreatic cancer cell progression.
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Affiliation(s)
- Xiaoqiang Liang
- Institute of Chinese Traditional Surgery, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Cheng Hu
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mian Han
- Institute of Chinese Traditional Surgery, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Congying Liu
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xun Sun
- Gastrointestinal surgery, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Kui Yu
- General surgery, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Honggang Gu
- Hepatobiliary surgery, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jingzhe Zhang
- Hepatobiliary surgery, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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14
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Kołat D, Kałuzińska Ż, Bednarek AK, Płuciennik E. Determination of WWOX Function in Modulating Cellular Pathways Activated by AP-2α and AP-2γ Transcription Factors in Bladder Cancer. Cells 2022; 11:cells11091382. [PMID: 35563688 PMCID: PMC9106060 DOI: 10.3390/cells11091382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/16/2022] [Accepted: 04/18/2022] [Indexed: 02/07/2023] Open
Abstract
Following the invention of high-throughput sequencing, cancer research focused on investigating disease-related alterations, often inadvertently omitting tumor heterogeneity. This research was intended to limit the impact of heterogeneity on conclusions related to WWOX/AP-2α/AP-2γ in bladder cancer which differently influenced carcinogenesis. The study examined the signaling pathways regulated by WWOX-dependent AP-2 targets in cell lines as biological replicates using high-throughput sequencing. RT-112, HT-1376 and CAL-29 cell lines were subjected to two stable lentiviral transductions. Following CAGE-seq and differential expression analysis, the most important genes were identified and functionally annotated. Western blot was performed to validate the selected observations. The role of genes in biological processes was assessed and networks were visualized. Ultimately, principal component analysis was performed. The studied genes were found to be implicated in MAPK, Wnt, Ras, PI3K-Akt or Rap1 signaling. Data from pathways were collected, explaining the differences/similarities between phenotypes. FGFR3, STAT6, EFNA1, GSK3B, PIK3CB and SOS1 were successfully validated at the protein level. Afterwards, a definitive network was built using 173 genes. Principal component analysis revealed that the various expression of these genes explains the phenotypes. In conclusion, the current study certified that the signaling pathways regulated by WWOX and AP-2α have more in common than that regulated by AP-2γ. This is because WWOX acts as an EMT inhibitor, AP-2γ as an EMT enhancer while AP-2α as a MET inducer. Therefore, the relevance of AP-2γ in targeted therapy is now more evident. Some of the differently regulated genes can find application in bladder cancer treatment.
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15
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Bakovic A, Bhalla N, Alem F, Campbell C, Zhou W, Narayanan A. Inhibitors of Venezuelan Equine Encephalitis Virus Identified Based on Host Interaction Partners of Viral Non-Structural Protein 3. Viruses 2021; 13:1533. [PMID: 34452398 DOI: 10.3390/v13081533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/20/2021] [Accepted: 07/29/2021] [Indexed: 12/11/2022] Open
Abstract
Venezuelan equine encephalitis virus (VEEV) is a new world alphavirus and a category B select agent. Currently, no FDA-approved vaccines or therapeutics are available to treat VEEV exposure and resultant disease manifestations. The C-terminus of the VEEV non-structural protein 3 (nsP3) facilitates cell-specific and virus-specific host factor binding preferences among alphaviruses, thereby providing targets of interest when designing novel antiviral therapeutics. In this study, we utilized an overexpression construct encoding HA-tagged nsP3 to identify host proteins that interact with VEEV nsP3 by mass spectrometry. Bioinformatic analyses of the putative interactors identified 42 small molecules with the potential to inhibit the host interaction targets, and thus potentially inhibit VEEV. Three inhibitors, tomatidine, citalopram HBr, and Z-VEID-FMK, reduced replication of both the TC-83 strain and the Trinidad donkey (TrD) strain of VEEV by at least 10-fold in astrocytoma, astroglial, and microglial cells. Further, these inhibitors reduced replication of the related New World (NW) alphavirus Eastern equine encephalitis virus (EEEV) in multiple cell types, thus demonstrating broad-spectrum antiviral activity. Time-course assays revealed all three inhibitors reduced both infectious particle production and positive-sense RNA levels post-infection. Further evaluation of the putative host targets for the three inhibitors revealed an interaction of VEEV nsP3 with TFAP2A, but not eIF2S2. Mechanistic studies utilizing siRNA knockdowns demonstrated that eIF2S2, but not TFAP2A, supports both efficient TC-83 replication and genomic RNA synthesis, but not subgenomic RNA translation. Overall, this work reveals the composition of the VEEV nsP3 proteome and the potential to identify host-based, broad spectrum therapeutic approaches to treat new world alphavirus infections.
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16
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Nguyen DM, Suzuki S, Imura H, Niimi T, Furukawa H, Ta TV, Tong SM, Nguyen TT, Pham LNG, Tran DL, Natsume N. Family based and case-control designs reveal an association of TFAP2A in nonsyndromic cleft lip only among Vietnamese population. Mol Genet Genomic Med 2021; 9:e1754. [PMID: 34310873 PMCID: PMC8457689 DOI: 10.1002/mgg3.1754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 07/08/2021] [Indexed: 12/19/2022] Open
Abstract
Aims Dozens of causative genes and their mechanisms of nonsyndromic cleft lip with or without cleft palate (NSCL/P) were revealed through genome‐wide association and linkage studies. Results were, however, not always replicated in different populations or methodologies. This study used case–control and family based approaches to investigate the etiology of NSCL/P and its two subtypes: nonsyndromic cleft lip only (NSCLO) and nonsyndromic cleft lip and palate (NSCLP) among the Vietnamese population. Methods Two hundred and seventeen NSCL/P case‐parent trios (one affected child and two parents), including 105 NSCLO and 112 NSCLP were involved for a family based design; and 273 ethnic and region‐matched healthy controls with no cleft history in their families were recruited for a case–control design. Three SNPs consisting of TFAP2A (rs1675414 and rs303048) and 8q24 (rs987525) were genotyped using the TaqMan SNP genotyping assay. Results TFAP2A rs1675414 was associated with NSCLO, replicated by both case‐control and family based tests. Other SNPs yielded no evidence of susceptibility to NSCL/P or two subtypes. Conclusion The current investigation suggests an intriguing role of TFAP2A in the etiology of NSCLO among the Vietnamese population. This study used case‐control and family‐based approaches to investigate the etiology of NSCL/P and its two subtypes: nonsyndromic cleft lip only (NSCLO), nonsyndromic cleft lip and palate (NSCLP) among Vietnamese population. TFAP2A rs1675414 was associated with NSCLO, replicated by both case‐control and family‐based tests.
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Affiliation(s)
- Duc Minh Nguyen
- Division of Research and Treatment for Oral Maxillofacial Congenital Anomalies, Aichi Gakuin University, Nagoya, Japan.,School of Odonto-stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Satoshi Suzuki
- Division of Research and Treatment for Oral Maxillofacial Congenital Anomalies, Aichi Gakuin University, Nagoya, Japan
| | - Hideto Imura
- Division of Research and Treatment for Oral Maxillofacial Congenital Anomalies, Aichi Gakuin University, Nagoya, Japan.,Cleft Lip and Palate Center, Aichi Gakuin Dental Hospital, Nagoya, Japan.,Division of Speech, Hearing, and Language, Aichi Gakuin Dental Hospital, Nagoya, Japan
| | - Teruyuki Niimi
- Division of Research and Treatment for Oral Maxillofacial Congenital Anomalies, Aichi Gakuin University, Nagoya, Japan.,Cleft Lip and Palate Center, Aichi Gakuin Dental Hospital, Nagoya, Japan.,Division of Speech, Hearing, and Language, Aichi Gakuin Dental Hospital, Nagoya, Japan
| | - Hiroo Furukawa
- Division of Research and Treatment for Oral Maxillofacial Congenital Anomalies, Aichi Gakuin University, Nagoya, Japan.,Cleft Lip and Palate Center, Aichi Gakuin Dental Hospital, Nagoya, Japan.,Division of Speech, Hearing, and Language, Aichi Gakuin Dental Hospital, Nagoya, Japan
| | - Thanh-Van Ta
- Center for Gene and Protein Research, Hanoi Medical University, Hanoi, Vietnam
| | - Son Minh Tong
- School of Odonto-stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Tra Thu Nguyen
- School of Odonto-stomatology, Hanoi Medical University, Hanoi, Vietnam.,Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Loc Nguyen Gia Pham
- Division of Research and Treatment for Oral Maxillofacial Congenital Anomalies, Aichi Gakuin University, Nagoya, Japan.,Odonto - Maxillo Facial Hospital of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Duy Le Tran
- Nguyen Dinh Chieu General Hopsital, Ben Tre, Vietnam
| | - Nagato Natsume
- Division of Research and Treatment for Oral Maxillofacial Congenital Anomalies, Aichi Gakuin University, Nagoya, Japan.,Cleft Lip and Palate Center, Aichi Gakuin Dental Hospital, Nagoya, Japan.,Division of Speech, Hearing, and Language, Aichi Gakuin Dental Hospital, Nagoya, Japan
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17
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Kołat D, Kałuzińska Ż, Bednarek AK, Płuciennik E. WWOX Loses the Ability to Regulate Oncogenic AP-2γ and Synergizes with Tumor Suppressor AP-2α in High-Grade Bladder Cancer. Cancers (Basel) 2021; 13:cancers13122957. [PMID: 34204827 PMCID: PMC8231628 DOI: 10.3390/cancers13122957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/03/2021] [Accepted: 06/10/2021] [Indexed: 02/07/2023] Open
Abstract
The cytogenic locus of the WWOX gene overlaps with the second most active fragile site, FRA16D, which is present at a higher frequency in bladder cancer (BLCA) patients with smoking habit, a known risk factor of this tumor. Recently, we demonstrated the relevance of the role of WWOX in grade 2 BLCA in collaboration with two AP-2 transcription factors whose molecular actions supported or opposed pro-cancerous events, suggesting a distinct character. As further research is needed on higher grades, the aim of the present study was to examine WWOX-AP-2 functionality in grade 3 and 4 BLCA using equivalent in vitro methodology with additional transcriptome profiling of cellular variants. WWOX and AP-2α demonstrated similar anti-cancer functionality in most biological processes with subtle differences in MMP-2/9 regulation; this contradicted that of AP-2γ, whose actions potentiated cancer progression. Simultaneous overexpression of WWOX and AP-2α/AP-2γ revealed that single discrepancies appear in WWOX-AP-2α collaboration but only at the highest BLCA grade; WWOX-AP-2α collaboration was considered anti-cancer. However, WWOX only appeared to have residual activity against oncogenic AP-2γ in grade 3 and 4: variants with either AP-2γ overexpression alone or combined WWOX and AP-2γ overexpression demonstrated similar pro-tumoral behavior. Transcriptome profiling with further gene ontology certified biological processes investigated in vitro and indicated groups of genes consisting of AP-2 targets and molecules worth investigation as biomarkers. In conclusion, tumor suppressor synergism between WWOX and AP-2α is unimpaired in high-grade BLCA compared to intermediate grade, yet the ability of WWOX to guide oncogenic AP-2γ is almost completely lost.
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Abstract
Long non-coding RNAs (lncRNAs) are involved in the occurrence and development of human cancers including lung adenocarcinoma (LUAD). SLC2A1-AS1 is a novel lncRNA that has been reported to be exceptionally expressed in several cancer types. However, the expression and role of SLC2A1-AS1 in cancer remains largely unclear. In this study, it was revealed that lncRNA SLC2A1-AS1 was notably over-expressed in LUAD and was closely correlated with patients' overall survival (OS). Knockdown of SLC2A1-AS1 could significantly restrain cell proliferation of LUAD in vitro, while over-expression of SLC2A1-AS1 had the accelerative effect. SLC2A1-AS1 enriched in the cytoplasm of LUAD cells could directly bind to miR-508-5p and negatively regulate its level. The inhibitory effect of miR-508-5p on LUAD cell proliferation was in part abrogated by SLC2A1-AS1 manipulation. Moreover, the transcription factor activating enhancer binding protein 2 α (TFAP2A) was highly expressed in LUAD and predicted worse patients' OS. TFAP2A could directly bind to the promoter region of SLC2A1-AS1 encoding gene and positively regulate the transcription of SLC2A1-AS1 in LUAD cells. Furthermore, TFAP2A-induced SLC2A1-AS1 promoted cell proliferation of lung squamous cell carcinoma (LUSC) and pancreatic adenocarcinoma (PAAD). Collectively, these findings suggest that TFAP2A-mediated lncRNA SLC2A1-AS1 works as an oncogene to drive cancer cell proliferation.
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Affiliation(s)
- Yuanbo Cui
- School of Life Sciences, Zhengzhou University, Zhengzhou450001, China
| | - Chunyan Zhang
- Department of Clinical Laboratory, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou450007, China
| | - Shanshan Ma
- School of Life Sciences, Zhengzhou University, Zhengzhou450001, China
| | - Fangxia Guan
- School of Life Sciences, Zhengzhou University, Zhengzhou450001, China
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19
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Mao X, Zhang X, Zheng X, Chen Y, Xuan Z, Huang P. Curcumin suppresses LGR5(+) colorectal cancer stem cells by inducing autophagy and via repressing TFAP2A-mediated ECM pathway. J Nat Med 2021; 75:590-601. [PMID: 33713277 PMCID: PMC8159825 DOI: 10.1007/s11418-021-01505-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/03/2021] [Indexed: 01/24/2023]
Abstract
Abstract Colorectal cancer stem cells (CSCs) have the potential for self-renewal, proliferation, and differentiation. And LGR5 is a stem cell marker gene of colorectal cancer. Curcumin can suppress oncogenicity of many cancer cells, yet the effect and mechanism of curcumin in LGR5(+) colorectal cancer stem cells (CSCs) have not been studied. In this study, we studied the effect of curcumin on LGR5(+) colorectal CSCs using the experiments of tumorsphere formation, cell viability and cell apoptosis. Then autophagy analysis, RNA-Seq, and real-time PCR were used to identify the mechanism responsible for the inhibition of LGR5(+) colorectal CSCs. Our results showed that curcumin inhibited tumorsphere formation, decreased cell viability in a dose-dependent manner, and also promoted apoptosis of LGR5(+) colorectal CSCs. Next, we found curcumin induced autophagy of LGR5(+) colorectal CSCs. When LGR5(+) colorectal CSCs were co-treated with curcumin and the autophagy inhibitor (hydroxychloroquine), curcumin-induced cell proliferation inhibition decreased. In addition, we also found that curcumin inhibited the extracellular matrix (ECM)-receptor interaction pathway via the downregulation of the following genes: GP1BB, COL9A3, COMP, AGRN, ITGB4, LAMA5, COL2A1, ITGB6, ITGA1, and TNC. Further, these genes were transcriptionally regulated by TFAP2A, and the high expression of TFAP2A was associated with poor prognosis in colorectal cancer. In conclusion, curcumin suppressed LGR5(+) colorectal CSCs, potentially by inducing autophagy and repressing the oncogenic TFAP2A-mediated ECM pathway. Graphic abstract ![]()
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Affiliation(s)
- Xiaohong Mao
- Department of Pharmacy, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Xin Zhang
- Department of Pathology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Xiaowei Zheng
- Department of Pharmacy, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Yongwu Chen
- Department of Pharmacy, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230036, China
| | - Zixue Xuan
- Department of Pharmacy, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China.
| | - Ping Huang
- Department of Pharmacy, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, China.
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20
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Kałuzińska Ż, Kołat D, Kośla K, Orzechowska M, Bednarek AK, Płuciennik E. In vitro and in silico assessment of the effect of WWOX expression on invasiveness pathways associated with AP-2 transcription factors in bladder cancer. BMC Urol 2021; 21:36. [PMID: 33691672 PMCID: PMC7944886 DOI: 10.1186/s12894-021-00806-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/02/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND WW Domain Containing Oxidoreductase (WWOX) belongs to the unusual tumor suppressors, whose molecular function is not fully understood in bladder cancer, especially regarding interaction with Activator Protein 2 (AP-2) α/γ transcription factors. Thus, using lentiviral systems we created an in vitro model overexpressing or downregulating WWOX in CAL-29 cell line to assess invasiveness pathways. Surprisingly, while WWOX overexpression was accompanied with increased expression of both AP-2 factors, its downregulation only affected AP-2α level but not AP-2γ which remained high. METHODS Using cellular models and unpaired t-test or Wilcoxon test, we investigated significant changes in biological processes: clonogenicity, extracellular matrix adhesion, metalloproteinases activity, 3D culture growth, proliferation, mitochondrial redox potential and invasiveness. Relative gene expression acquired through Real-Time qPCR has been analyzed by Welch's t-test. Additionally, using oncoprint analysis we distinguished groups for bioinformatics analyzes in order to perform a follow-up of in vitro experiments. RESULTS Downregulation of WWOX in bladder cancer cell line intensified ability of single cell to grow into colony, mitochondrial redox potential and proliferation rate. Moreover, these cells shown elevated pro-MMP-2/9 activity but reduced adhesion to collagen I or laminin I, as well as distinct 3D culture growth. Through global in silico profiling we determined that WWOX alters disease-free survival of bladder cancer patients and modulates vital processes through AP-2 downstream effectors. CONCLUSIONS Our research indicates that WWOX possesses tumor suppressor properties in bladder cancer but consecutive examination is required to entirely understand the contribution of AP-2γ or AP-2α.
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Affiliation(s)
- Żaneta Kałuzińska
- Department of Molecular Carcinogenesis, Medical University of Lodz, 90-752, Lodz, Poland.
| | - Damian Kołat
- Department of Molecular Carcinogenesis, Medical University of Lodz, 90-752, Lodz, Poland
| | - Katarzyna Kośla
- Department of Molecular Carcinogenesis, Medical University of Lodz, 90-752, Lodz, Poland
| | - Magdalena Orzechowska
- Department of Molecular Carcinogenesis, Medical University of Lodz, 90-752, Lodz, Poland
| | - Andrzej K Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, 90-752, Lodz, Poland
| | - Elżbieta Płuciennik
- Department of Molecular Carcinogenesis, Medical University of Lodz, 90-752, Lodz, Poland
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Cao Q, Feng D, He J, Zhou L, Fan Z, Chen Y, Chen X, Jin R, Zhou G. Involvement of TFAP2A in the activation of GSDMD gene promoter in hyperoxia-induced ALI. Exp Cell Res 2021; 401:112521. [PMID: 33609534 DOI: 10.1016/j.yexcr.2021.112521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 12/28/2022]
Abstract
Oxygen therapy is a common treatment in neonatal intensive care units, but long-term continuous hyperoxia ventilation may induce acute lung injury (ALI). Gasdermin D (GSDMD)-mediated pyroptosis participates in various diseases including ALI, but the role of GSDMD in hyperoxia-induced ALI is yet understood. Here, we showed a significant increase in GSDMD after exposure to high oxygen. To elucidate the molecular mechanisms involved in GSDMD regulation, we identified the core promoter of GSDMD, -98 ~ -12 bp relative to the transcriptional start site (TSS). The results of mutational analysis, overexpression or siRNA interference, EMSA and ChIP demonstrated that E2F4 and TFAP2A positively regulate the transcriptional activity of the GSDMD by binding to its promoter. However, only TFAP2A showed a regulatory effect on the expression of GSDMD. Moreover, TFAP2A was increased in the lung tissues of rats exposed to hyperoxia and showed a strong linear correlation with GSDMD. Our results indicated that TFAP2A positively regulates the GSDMD expression via binding to the promoter region of GSDMD.
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Zhang P, Hou Q, Yue Q. MiR-204-5p/ TFAP2A feedback loop positively regulates the proliferation, migration, invasion and EMT process in cervical cancer. Cancer Biomark 2021; 28:381-390. [PMID: 32474464 DOI: 10.3233/cbm-191064] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
MicroRNAs (MiRNAs) have been clarified as crucial regulators of the pathological processes in various carcinomas in the past years. Interestingly, existing evidence has manifested that microRNA-204-5p (miR-204-5p) is engaged in the initiation and progression of multiple carcinomas. However, the potential of miR-204-5p in cervical cancer remains to be disentombed. This study focused on unraveling the detailed role of miR-204-5p in cervical cancer. MiR-204-5p exhibited a low level in cervical cancer cells. The functional assays demonstrated that miR-204-5p upregulation exerted suppressive impact on the functions of cervical cancer cells, including proliferation, invasion, migration and epithelial-mesenchymal transition (EMT) process. Moreover, transcription factor AP-2 alpha (TFAP2A) was screened to be the most affected target gene by miR-204-5p, and TFAP2A was discovered to transcriptionally repress miR-204-5p in cervical cancer. The mutual regulation between TFAP2A and miR-204-5p was testified through molecular mechanism assays. Final rescued-function assays demonstrated that overexpression of TFAP2A could recover the suppressed cellular process caused by miR-204-5p upregulation. In conclusion, miR-204-5p/TFAP2A feedback loop promoted the proliferative and motorial capacities of cervical cancer cells. This finding suggested a novel modulatory loop of miR-204-5p/TFAP2A in cervical cancer, offering promising biomarkers for cervical cancer therapy.
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Kołat D, Kałuzińska Ż, Bednarek AK, Płuciennik E. Corrigendum: Fragile Gene WWOX Guides TFAP2A/ TFAP2C-Dependent Actions Against Tumor Progression in Grade II Bladder Cancer. Front Oncol 2021; 11:735435. [PMID: 34513711 PMCID: PMC8428171 DOI: 10.3389/fonc.2021.735435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 02/05/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fonc.2021.621060.].
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Kołat D, Kałuzińska Ż, Bednarek AK, Płuciennik E. Fragile Gene WWOX Guides TFAP2A/ TFAP2C-Dependent Actions Against Tumor Progression in Grade II Bladder Cancer. Front Oncol 2021; 11:621060. [PMID: 33718178 PMCID: PMC7947623 DOI: 10.3389/fonc.2021.621060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 01/18/2021] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION The presence of common fragile sites is associated with no-accidental chromosomal instability which occurs prior to carcinogenesis. The WWOX gene spans the second most active fragile site: FRA16D. Chromosomal breakage at this site is more common in bladder cancer patients who are tobacco smokers which suggests the importance of WWOX gene loss regarding bladder carcinogenesis. Tryptophan domains of WWOX are known to recognize motifs of other proteins such as AP-2α and AP-2γ allowing protein-protein interactions. While the roles of both AP-2 transcription factors are important for bladder carcinogenesis, their nature is different. Based on the literature, AP-2γ appears to be oncogenic, whereas AP-2α mainly exhibits tumor suppressor character. Presumably, the interaction between WWOX and both transcription factors regulates thousands of genes, hence the aim of the present study was to determine WWOX, AP-2α, and AP-2γ function in modulating biological processes of bladder cancer. METHODS RT-112 cell line (grade II bladder cancer) was subjected to two stable lentiviral transductions. Overall, this resulted in six variants to investigate distinct WWOX, AP-2α, or AP-2γ function as well as WWOX in collaboration with a particular transcription factor. Cellular models were examined with immunocytochemical staining and in terms of differences in biological processes using assays investigating cell viability, proliferation, apoptosis, adhesion, clonogenicity, migration, activity of metalloproteinases and 3D culture growth. RESULTS WWOX overexpression increased apoptosis but decreased cell viability, migration and large spatial colonies. AP-2α overexpression decreased tumor cell viability, migratory potential, matrix metalloproteinase-2 activity and clonogenicity. AP-2γ overexpression decreased matrix metalloproteinase-2 activity but increased wound healing, adhesion, clonogenicity and spatial colony formation. WWOX and AP-2α overexpression induced apoptosis but decreased cell viability, adhesion, matrix metalloproteinase-2 activity, overall number of cultured colonies and migration rate. WWOX and AP-2γ overexpression decreased tumor cell viability, proliferation potential, adhesion, clonogenicity and the ability to create spatial structures, but also increased apoptosis or migration rate. CONCLUSION Co-overexpression of WWOX with AP-2α or WWOX with AP-2γ resulted in a net anti-tumor effect. However, considering this research findings and the difference between AP-2α and AP-2γ, we suggest that this similarity is due to a divergent behavior of WWOX.
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Xu H, Wang L, Jiang X. Silencing of lncRNA DLEU1 inhibits tumorigenesis of ovarian cancer via regulating miR-429/ TFAP2A axis. Mol Cell Biochem 2020; 476:1051-1061. [PMID: 33170430 DOI: 10.1007/s11010-020-03971-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/31/2020] [Indexed: 01/09/2023]
Abstract
Long non-coding RNAs (lncRNAs) are known as crucial regulators in the development of OC. In the current study, we aim to explore the function and molecular mechanism of lncRNA DLEU1 in OC. Quantitative real-time polymerase chain reaction (qRT-PCR) was applied to determine the expression of DLEU1, miR-429, and TFAP2A in OC cells and tissues. The relationship among DLEU1, miR-429, and TFAP2A was tested by dual-luciferase reporter (DLR) assay. Besides, the proliferative, migratory and invasive abilities of OC cells were analyzed by MTT, wound healing, and transwell assays, respectively. Western blot was performed to determine the protein expression of TFAP2A. The expression of lncRNA DLEU1 and TFAP2A were upregulated, and miR-429 was downregulated in OC tissues. Silencing of DLEU1 inhibited the proliferation, migration, and invasion of OC cells. Bioinformation and DLR assay showed that DLEU1 acted as the sponge for miR-429. Moreover, miR-429 could directly target TFAP2A and inhibit the proliferation, migration, and invasion of OC cells. Moreover, we observed a negative correlation between miR-429 and DLEU1, and between miR-429 and TFAP2A in OC tissues. The transfection of miR-429 inhibitor or pcDNA-TFAP2A reversed the inhibitory effects of si-DLEU1 on the proliferation, migration, and invasion of OC cells. Silencing of DLEU1 inhibited the proliferation, migration, and invasion of OC cells by regulating miR-429/TFAP2A axis, indicating a potential therapeutic target for OC.
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Affiliation(s)
- Huiying Xu
- Department of Gynaecology and Obstetrics, The First People's Hospital of Lanzhou City, No. 1, Wujiayuan West Street. Qilihe District, Lanzhou, Gansu, 730050, China
| | - Lingyan Wang
- Department of Gynecology, Binzhou Chinese Medicine Hospital, Bincheng District, No. 539, Bohai 8th Road, Binzhou, Shandong, 256600, China
| | - Xiuli Jiang
- Department of Gynecology, People's Hospital of Yucheng City, No. 753, Kaituo Road, Yucheng City, Shandong, 251200, China.
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Ding M, Fu Y, Guo F, Chen H, Fu X, Tan W, Zhang H. Long non-coding RNA MAFG-AS1 knockdown blocks malignant progression in breast cancer cells by inactivating JAK2/STAT3 signaling pathway via MAFG-AS1/miR-3196/ TFAP2A axis. Int J Clin Exp Pathol 2020; 13:2455-2473. [PMID: 33165437 PMCID: PMC7642707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 01/19/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Breast cancer is still a leading threat to women's lives. Long non-coding RNAs (lncRNA) associated with cancer progression are getting attention. The objective of this study was to investigate the role of lncRNA MAFG-antisense 1 (MAFG-AS1) and mechanisms of action in breast cancer. METHODS The expression of MAFG-AS1, microRNA-3196 (miR-3196) and transcription factor AP-2 alpha (TFAP2A) was detected by quantitative real-time polymerase chain reaction (qRT-PCR). The cell proliferation was assessed by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT) assay. The number of colonies was observed through colony formation assay. The protein levels of Cyclin D1, Ki67, Bcl-2 associated X protein (Bax), B-cell lymphoma2 (Bcl-2), Hexokinase II (HK2), lactate dehydrogenase A (LDHA), TFAP2A, Janus kinase 2 (JAK2), phosphorylated-JAK2 (p-JAK2), signal transducer and activator of transcription 3 (STAT3), and phosphorylated-STAT3 were quantified by western blot. The cell apoptosis was monitored using flow cytometry. The glycolysis progression was evaluated according to glucose consumption and lactate production. The relationship between miR-3196 and MAFG-AS1 or TFAP2A was predicted by the online tool starBase and verified by the dual-luciferase reporter assay. The role of MAFG-AS1 in vivo was determined by the tumor formation assay in nude mice. RESULTS MAFG-AS1 was highly expressed in tumor tissues and cells. MAFG-AS1 knockdown restrained proliferation, colony formation, and glycolysis but promoted apoptosis of breast cancer cells. MiR-3196 was a target of MAFG-AS1, and its inhibition reversed the role of MAFG-AS1 knockdown. TFAP2A was a target of miR-3196, and its overexpression abolished the effects of miR-3196 reintroduction. MAFG-AS1 knockdown suppressed the activity of the JAK2/STAT3 signaling pathway. Moreover, MAFG-AS1 knockdown reduced tumor growth in vivo. CONCLUSION MAFG-AS1 knockdown attenuated breast cancer progression in vitro and in vivo through activation of the JAK2/STAT3 signaling pathway by the MAFG-AS1/miR-3196/TFAP2A regulatory axis.
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Affiliation(s)
- Mingxing Ding
- Medical Molecular Biology Laboratory, Medical College, Jinhua PolytechnicJinhua, Zhejiang, China
| | - Yongqiang Fu
- Medical Molecular Biology Laboratory, Medical College, Jinhua PolytechnicJinhua, Zhejiang, China
| | - Fangming Guo
- Medical Molecular Biology Laboratory, Medical College, Jinhua PolytechnicJinhua, Zhejiang, China
| | - Haohao Chen
- Medical Molecular Biology Laboratory, Medical College, Jinhua PolytechnicJinhua, Zhejiang, China
| | - Xiaoyan Fu
- Medical Molecular Biology Laboratory, Medical College, Jinhua PolytechnicJinhua, Zhejiang, China
| | - Wenzhuang Tan
- Medical Molecular Biology Laboratory, Medical College, Jinhua PolytechnicJinhua, Zhejiang, China
| | - Hui Zhang
- Department of Laboratory Animals Center, Jinhua Institute for Food and Drug ControlJinhua, Zhejiang, China
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Zhang LL, Lu J, Liu RQ, Hu MJ, Zhao YM, Tan S, Wang SY, Zhang B, Nie W, Dong Y, Zhong H, Zhang W, Zhao XD, Han BH. Chromatin accessibility analysis reveals that TFAP2A promotes angiogenesis in acquired resistance to anlotinib in lung cancer cells. Acta Pharmacol Sin 2020; 41:1357-1365. [PMID: 32415222 PMCID: PMC7608858 DOI: 10.1038/s41401-020-0421-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/15/2020] [Indexed: 12/24/2022] Open
Abstract
Anlotinib, a multitarget tyrosine kinase inhibitor, is effective as a third-line treatment against non-small cell lung cancer (NSCLC). However, acquired resistance occurs during its administration. To understand the molecular mechanisms of anlotinib resistance, we characterized chromatin accessibility in both the parental and anlotinib-resistant lung cancer cell line NCI-H1975 through ATAC-seq. Compared with the parental cells, we identified 2666 genomic regions with greater accessibility in anlotinib-resistant cells, in which angiogenesis-related processes and the motifs of 21 transcription factors were enriched. Among these transcription factors, TFAP2A was upregulated. TFAP2A knockdown robustly diminished tumor-induced angiogenesis and partially rescued the anti-angiogenic activity of anlotinib. Furthermore, transcriptome analysis indicated that 2280 genes were downregulated in anlotinib-resistant cells with TFAP2A knocked down, among which the PDGFR, TGF-β, and VEGFR signaling pathways were enriched. Meanwhile, we demonstrated that TFAP2A binds to accessible sites within BMP4 and HSPG2. Collectively, this study suggests that TFAP2A accelerates anlotinib resistance by promoting tumor-induced angiogenesis.
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Chen D, Sun N, Hou L, Kim R, Faith J, Aslanyan M, Tao Y, Zheng Y, Fu J, Liu W, Kellis M, Clark A. Human Primordial Germ Cells Are Specified from Lineage-Primed Progenitors. Cell Rep 2020; 29:4568-4582.e5. [PMID: 31875561 PMCID: PMC6939677 DOI: 10.1016/j.celrep.2019.11.083] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/20/2019] [Accepted: 11/20/2019] [Indexed: 12/03/2022] Open
Abstract
In vitro gametogenesis is the process of making germline cells from human pluripotent stem cells. The foundation of this model is the quality of the first progenitors called primordial germ cells (PGCs), which in vivo are specified during the peri-implantation window of human development. Here, we show that human PGC (hPGC) specification begins at day 12 post-fertilization. Using single-cell RNA sequencing of hPGC-like cells (hPGCLCs) differentiated from pluripotent stem cells, we discovered that hPGCLC specification involves resetting pluripotency toward a transitional state with shared characteristics between naive and primed pluripotency, followed by differentiation into lineage-primed TFAP2A+ progenitors. Applying the germline trajectory to TFAP2C mutants reveals that TFAP2C functions in the TFAP2A+ progenitors upstream of PRDM1 to regulate the expression of SOX17. This serves to protect hPGCLCs from crossing the Weismann’s barrier to adopt somatic cell fates and, therefore, is an essential mechanism for successfully initiating in vitro gametogenesis. Using genetics, genomics, and single-cell RNA-seq, Chen et al. characterize the human germline trajectory, revealing two pluripotent cell transitions during primordial germ cell specification. They reveal the identity of primordial germ cell progenitors and show that TFAP2C prevents gastrulation and amnion-like fate at the point of primordial germ cell specification.
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Affiliation(s)
- Di Chen
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Na Sun
- MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Lei Hou
- MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Rachel Kim
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jared Faith
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Marianna Aslanyan
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yu Tao
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yi Zheng
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jianping Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Wanlu Liu
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, 310058 Hangzhou, PR China
| | - Manolis Kellis
- MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
| | - Amander Clark
- Department of Molecular Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Manley CN, Deepak V, Ravikumar N, Smith AK, Knight AK, Badell ML, Sidell N, Rajakumar A. Transcription factor AP2A affects sFLT1 expression and decidualization in decidual stromal cells: Implications to preeclampsia pathology. Pregnancy Hypertens 2020; 21:152-158. [PMID: 32535226 DOI: 10.1016/j.preghy.2020.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 12/21/2022]
Abstract
Preeclampsia (PE) yields a spectrum of phenotypic expression, leading to varying degrees of hypertension, maternal renal dysfunction and placental insufficiency with resultant maternal and neonatal morbidity. Increased sFLT1 expression contributing to angiogenic factor imbalance, placental hypoxia, failed immune adaptation to the fetus and defective decidualization are among the commonly proposed theories of PE pathogenesis. Recently researchers have focused their attention on the events that occur at the maternal fetal interface as potential contributors to PE pathogenesis. Decidual stromal cells (DSC) isolated from preeclamptic women show diminished ability to decidualize upon stimulation and reduced capacity to downregulate sFlt-1 levels. In this study, we sought to gain insight into the molecular mechanism(s) involved in the aberrant decidualization capacity of PE DSC. Our findings using qRT-PCR show that PE DSCs have 6-fold higher basal levels of transcription factor AP2A (TFAP2A) RNA compared to women without PE and that expression of TFAP2A increases during decidualization but only in DSCs of normotensive (NT) women. Silencing of TFAP2A using Trilencer siRNA upregulated sFLT1 expression only in NT-DSCs but suppressed the expression of decidualization markers PRL, IGFBP1 and their regulator FOXO1 in cells from both groups. Collectively, our observations suggest that TFAP2A acts as a repressor of sFLT1 and plays a necessary role in decidualization possibly through interacting with another factor that is aberrantly expressed in PE DSCs.
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Affiliation(s)
- Charisma N Manley
- Division of Maternal Fetal Medicine, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Venkataraman Deepak
- Division of Research, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Nithin Ravikumar
- Division of Research, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Alicia K Smith
- Division of Research, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Anna K Knight
- Division of Research, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Martina L Badell
- Division of Maternal Fetal Medicine, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Neil Sidell
- Division of Research, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Augustine Rajakumar
- Division of Research, Emory University School of Medicine, Atlanta, GA, United States; Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA, United States.
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Gong B, Wang X, Li B, Li Y, Lu R, Zhang K, Li B, Ma Y, Li Y. miR-205-5p inhibits thymic epithelial cell proliferation via FA2H- TFAP2A feedback regulation in age-associated thymus involution. Mol Immunol 2020; 122:173-185. [PMID: 32371259 DOI: 10.1016/j.molimm.2020.04.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 03/02/2020] [Accepted: 04/13/2020] [Indexed: 12/28/2022]
Abstract
Thymic epithelial cells (TECs) are essential regulators of T cell development and selection. microRNAs (miRNAs) play critical roles in regulating TECs proliferation during thymus involution. miR-205-5p is highly expressed in TECs and increases with age. However, the function and potential mechanism of miR-205-5p in TECs are not clear. miRNA expression was profiled using TECs from male and female mice at 1 and 3 months old. A total of 325 differentially expressed miRNAs (DEMs) were detected at different ages in two sexes. 24 of the DEMs had the same trend between males and females. Among them, miR-205-5p had the highest fold change. Our results showed that the expression of miR-205-5p was dramatically increased in TECs from 1 to 9 months old mice. miR-205-5p mimic inhibited TECs proliferation. Moreover, we confirmed that Fa2h was the direct target gene of miR-205-5p and FA2H was significantly decreased in TECs with increased expression of miR-205-5p. Silencing of Fa2h inhibited TECs proliferation. Furthermore, we found that the expression of Tfap2a could be promoted by FA2H and that TFAP2A could interact with miR-205-5p in TECs. Overall, miR-205-5p is an important regulator of TECs proliferation and regulates age-associated thymus involution via the miR-205-5p-FA2H-TFAP2A feedback regulatory circuit. miR-205-5p might act as a potential biomarker in TECs for age-related thymus involution.
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Affiliation(s)
- Bishuang Gong
- College of Veterinary Medicine, South China Agricultural University, China
| | - Xintong Wang
- College of Veterinary Medicine, South China Agricultural University, China
| | - Boning Li
- the Department of Cardiology, Shenzhen Children's Hospital, Shenzhen, China
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, China
| | - Rui Lu
- College of Veterinary Medicine, South China Agricultural University, China
| | - Kaizhao Zhang
- College of Veterinary Medicine, South China Agricultural University, China
| | - Bingxin Li
- College of Veterinary Medicine, South China Agricultural University, China
| | - Yongjiang Ma
- College of Veterinary Medicine, South China Agricultural University, China.
| | - Yugu Li
- College of Veterinary Medicine, South China Agricultural University, China.
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Guoren Z, Zhaohui F, Wei Z, Mei W, Yuan W, Lin S, Xiaoyue X, Xiaomei Z, Bo S. TFAP2A Induced ITPKA Serves as an Oncogene and Interacts with DBN1 in Lung Adenocarcinoma. Int J Biol Sci 2020; 16:504-514. [PMID: 32015686 PMCID: PMC6990902 DOI: 10.7150/ijbs.40435] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 11/12/2019] [Indexed: 12/22/2022] Open
Abstract
The inositol polyphosphate kinase (IPK) family member ITPKA (inositol 1,4,5-trisphosphate 3-kinase) regulates the levels of many inositol polyphosphates which are important in cellular signaling. Several recent studies reported the aberrant expression of ITPKA in malignancy disease and usually made cancer more aggressive. However, the contribution of the inositol polyphosphate kinase ITPKA to lung cancer development remains unclear. Here we report that ITPKA is overexpressed in lung adenocarcinoma (LUAD) and positively correlated with advanced clinical parameters. ITPKA contributes to the malignant phenotypes in-vitro. Mechanistically, ITPKA executed its action through the inducting of epithelial-mesenchymal transition (EMT) and interacting with Drebrin 1 (which is related to cancer metastasis). Moreover, the hyper-expression of ITPKA in LUAD is transcriptionally activated by the transcription factor TFAP2A. In survival analysis by using tissue microarray (TMA), we indicate that ITPKA is hyper-expressed in LUAD tissues compared to adjacent normal tissues, and increased expression of ITPKA is associated with poor prognosis. Collectively, this study indicates that TFAP2A induced ITPKA hyperexpression promotes LUAD via interacting with Drebrin 1 and activating epithelial-mesenchymal transition (EMT). ITPKA might represent a potent candidate for the treatment and prognostic prediction of LUAD.
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Affiliation(s)
- Zhou Guoren
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Fan Zhaohui
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Zhu Wei
- School Of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wang Mei
- School Of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wu Yuan
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Shi Lin
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Xu Xiaoyue
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Zhang Xiaomei
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Shen Bo
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
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Zhang N, Li Y, Xie M, Song Y, Liu J, Lei T, Shen Y, Yu J, Yang M. DACT2 modulated by TFAP2A-mediated allelic transcription promotes EGFR-TKIs efficiency in advanced lung adenocarcinoma. Biochem Pharmacol 2020; 172:113772. [PMID: 31866302 DOI: 10.1016/j.bcp.2019.113772] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/17/2019] [Indexed: 01/30/2023]
Abstract
Patients with epidermal growth factor receptor (EGFR)-mutant advanced non-small-cell lung cancer (NSCLC) benefits from EGFR-tyrosine kinase inhibitor (TKI) treatment. However, drug resistance to EGFR-TKIs remains a great challenge. Single nucleotide polymorphisms (SNPs) may significantly influence prognosis of EGFR-TKI therapy. Herein, we hypothesized that the functional SNP in DACT2, coding a pivotal inhibitor of the Wnt/β-catenin signaling, may affect gene expression, which in turn, impact prognosis of NSCLC treated with EGFR-TKIs. Genotypes of the DACT2 promoter rs9364433 SNP were determined in two independent cohorts consisted of 319 EGFR-TKI treated stage IIIB/IV NSCLC patients. The allele-specific regulation on DACT2 expression by rs9364433 and impacts of DACT2 on gefitinib sensitivity was evaluated in vitro and in vivo. Cox regression analyses demonstrated that rs9364433 was significantly associated with patient survival in both cohorts (all P < 0.05). Reporter gene assays and Electrophoretic Mobility Shift Assays demonstrated that rs9364433 has an allele-specific effect on gene expression modulated by transcription factor TFAP2A. The G allele associated with diminished TFAP2A binding leads to significantly decreased DACT2 expression in NSCLC cell lines and tissues. Consistently, DACT2 could evidently increase the anti-proliferation effect of gefitinib on NSCLC cells. Our findings elucidated potential clinical implications of DACT2, which may result in better understanding and outcome assessment of EGFR-TKI treatments.
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Wang X, Peng S, Cui K, Hou F, Ding J, Li A, Wang M, Geng L. MicroRNA-576-5p enhances the invasion ability of trophoblast cells in preeclampsia by targeting TFAP2A. Mol Genet Genomic Med 2019; 8:e1025. [PMID: 31701656 PMCID: PMC6978227 DOI: 10.1002/mgg3.1025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/18/2019] [Accepted: 10/11/2019] [Indexed: 12/22/2022] Open
Abstract
Background Preeclampsia (PE) is a common pregnancy‐related syndrome characterized by hypertension and proteinuria, and a major cause of maternal mortality. Therefore, there is an urgent need to identify early biomarkers of PE. The aim of the present study was to identify the functions of miR‐576‐5p in PE. Methods Effects of miR‐576‐5p and transcription factor AP‐2α (TFAP2A) on invasion of human trophoblast HTR8/SVneo cells were investigated. Real‐time quantitative polymerase chain reaction (RT‐qPCR) and western blotting were used to assess the expression of miR‐576‐5p, TFAP2A, E‐cad, and Vimentin in PE tissues and cells. Additionally, immunofluorescence was used to detect the expression of TFAP2A in PE trophoblastic tissue. Subsequently, constructed miR‐576‐5p mimics, miR‐576‐5p inhibitor, and siRNA‐TFAP2A plasmids were transfected into HTR8/SVneo cells for further experiments, including a CCK‐8 assay for cell proliferation, Transwell assay for cell invasion and the luciferase reporter gene system was employed for target verification. Results A lower expression of miR‐576‐5p and a higher expression of TFAP2A were identified in PE rats. E‐cadherin was highly expressed while Vimentin was downregulated. Further statistical analysis indicated that cell proliferation of HTR8/SVneo cells decreased in the miR‐576‐5p inhibitor group and increased in the miR‐576‐5p mimics and siRNA‐TFAP2A groups. miR‐576‐5p inhibitor suppressed cell invasion, and miR‐576‐5p mimics and siRNA‐TFAP2A improved cell invasion. The analysis of luciferase reporter demonstrated a decreased luciferase activity in miR‐576‐5p mimics group compared with control group, which indicates that TFAP2A may be a target of miR‐576‐5p. Interference of TFAP2A could downregulate E‐cadherin and upregulate Vimentin expression. Conclusion Overexpression of miR‐576‐5p and knockdown of TFAP2A may elevate cell proliferation and invasion of human trophoblast cells in vitro. Therefore, miR‐576‐5p may be used as a notable biomarker for the diagnosis, prevention, and treatment of PE. miR‐576‐5p targeting TFAP2A deserve further investigation in order to explore their potential role in PE.
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Affiliation(s)
- Xiaoning Wang
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
| | - Shiyuan Peng
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
| | - Kun Cui
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
| | - Fangjuan Hou
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
| | - Jie Ding
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
| | - Ali Li
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
| | - Mingxia Wang
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
| | - Li Geng
- Department of Medical, The 987 Hospital of the PLA Joint Logistics Support Force, Baoji, Shannxi, China
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Zhang F, Gu X, Yi S, Xu H. Dysregulated Transcription Factor TFAP2A After Peripheral Nerve Injury Modulated Schwann Cell Phenotype. Neurochem Res 2019; 44:2776-85. [PMID: 31650361 DOI: 10.1007/s11064-019-02898-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/08/2019] [Accepted: 10/20/2019] [Indexed: 01/16/2023]
Abstract
Transcription factors regulate the transcriptions and expressions of numerous target genes and direct a variety of physiological and pathological activities. To obtain a better understanding of the involvement of transcription factors during peripheral nerve repair and regeneration, significantly differentially expressed genes coding for transcription factors in rat sciatic nerves after sciatic nerve crush injury were identified. A total of 9 transcription factor genes, including GBX2, HIF3A, IRF8, LRRC63, SNAI3, SPIB, TBX21, TFAP2A, and ZBTB16 were identified to be commonly differentially expressed at 1, 4, 7, and 14 days after nerve injury. TFAP2A, a gene encoding transcription factor activating enhancer binding protein 2 alpha, was found to be critical in the regulatory network. PCR validation and immunohistochemistry staining of injured rat sciatic nerves showed that TFAP2A expression was significantly up-regulated in the Schwann cells after nerve injury for at least 2 weeks. Schwann cells transfected with TFAP2A-siRNA exhibited elevated proliferation rate and migration ability, suggesting that TFAP2A suppressed Schwann cell proliferation and migration. Collectively, our study provided a global overview of the dynamic changes of transcription factors after sciatic nerve injury, discovered key transcription factors for the regeneration process, and deepened the understanding of the molecular mechanisms underlying peripheral nerve repair and regeneration.
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Fernandez Garcia M, Moore CD, Schulz KN, Alberto O, Donague G, Harrison MM, Zhu H, Zaret KS. Structural Features of Transcription Factors Associating with Nucleosome Binding. Mol Cell 2019; 75:921-932.e6. [PMID: 31303471 DOI: 10.1016/j.molcel.2019.06.009] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/01/2019] [Accepted: 06/07/2019] [Indexed: 10/26/2022]
Abstract
Fate-changing transcription factors (TFs) scan chromatin to initiate new genetic programs during cell differentiation and reprogramming. Yet the protein structure domains that allow TFs to target nucleosomal DNA remain unexplored. We screened diverse TFs for binding to nucleosomes containing motif-enriched sequences targeted by pioneer factors in vivo. FOXA1, OCT4, ASCL1/E12α, PU1, CEBPα, and ZELDA display a range of nucleosome binding affinities that correlate with their cell reprogramming potential. We further screened 593 full-length human TFs on protein microarrays against different nucleosome sequences, followed by confirmation in solution, to distinguish among factors that bound nucleosomes, such as the neuronal AP-2α/β/γ, versus factors that only bound free DNA. Structural comparisons of DNA binding domains revealed that efficient nucleosome binders use short anchoring α helices to bind DNA, whereas weak nucleosome binders use unstructured regions and/or β sheets. Thus, specific modes of DNA interaction allow nucleosome scanning that confers pioneer activity to transcription factors.
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Affiliation(s)
- Meilin Fernandez Garcia
- Biochemistry and Molecular Biophysics Graduate Group, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104-5157, USA
| | - Cedric D Moore
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Katharine N Schulz
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI 53706, USA
| | - Oscar Alberto
- Institute for Regenerative Medicine, Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104-5157, USA
| | - Greg Donague
- Institute for Regenerative Medicine, Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104-5157, USA
| | - Melissa M Harrison
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI 53706, USA
| | - Heng Zhu
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Kenneth S Zaret
- Institute for Regenerative Medicine, Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104-5157, USA.
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Yuanhua L, Pudong Q, Wei Z, Yuan W, Delin L, Yan Z, Geyu L, Bo S. TFAP2A Induced KRT16 as an Oncogene in Lung Adenocarcinoma via EMT. Int J Biol Sci 2019; 15:1419-1428. [PMID: 31337972 PMCID: PMC6643144 DOI: 10.7150/ijbs.34076] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 04/05/2019] [Indexed: 12/25/2022] Open
Abstract
Objectives: keratin 16 (KRT16) is a type I cytokeratin that overexpressed in many kinds of cancers, but unlike other keratins, KRT16 was poorly studied, so the aim of current study was to determine the biological role of KRT16 in lung adenocarcinoma (LUAD). Materials and Methods: by utilizing open access data, we determined KRT16 expression in LUAD. After that we evaluated the biological role of KRT16 in-vitro and in-vivo. We also explored the reason for KRT16 overexpression. Last, we explored the clinical significance of KRT16 in LUAD. Results: we found KRT16 is overexpressed in LUAD and positively correlated with lymph node metastasis. Knockdown of KRT16 significantly influenced the LUAD cells' migration, invasion, proliferation and epithelial-mesenchymal transition (EMT). Moreover, TFAP2A could transcriptionally overexpress KRT16, which contributed to the TFAP2A tumorigenicity. Last, we determined that high level of KRT16 predicts poor prognosis of LUAD patients. Conclusions: our data indicate that, TFAP2A induced KRT16 overexpression promotes tumorigenicity in LUAD via EMT, and KRT16 expression could serve as an independent prognosis marker.
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Affiliation(s)
- Liu Yuanhua
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Qian Pudong
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Zhu Wei
- School Of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wu Yuan
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Liu Delin
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Zhang Yan
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
| | - Liang Geyu
- Key Laboratory Of Environmental Medicine Engineering, Ministry Of Education And School Of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Shen Bo
- Jiangsu Cancer Hospital, Jiangsu Institute Of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital; 42 Baiziting, Nanjing, Jiangsu, 210009, China (Corresponding Address)
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Chachami G, Stankovic-Valentin N, Karagiota A, Basagianni A, Plessmann U, Urlaub H, Melchior F, Simos G. Hypoxia-induced Changes in SUMO Conjugation Affect Transcriptional Regulation Under Low Oxygen. Mol Cell Proteomics 2019; 18:1197-1209. [PMID: 30926672 PMCID: PMC6553927 DOI: 10.1074/mcp.ra119.001401] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/14/2019] [Indexed: 12/20/2022] Open
Abstract
Hypoxia occurs in pathological conditions, such as cancer, as a result of the imbalance between oxygen supply and consumption by proliferating cells. HIFs are critical molecular mediators of the physiological response to hypoxia but also regulate multiple steps of carcinogenesis including tumor progression and metastasis. Recent data support that sumoylation, the covalent attachment of the Small Ubiquitin-related MOdifier (SUMO) to proteins, is involved in the activation of the hypoxic response and the ensuing signaling cascade. To gain insights into differences of the SUMO1 and SUMO2/3 proteome of HeLa cells under normoxia and cells grown for 48 h under hypoxic conditions, we employed endogenous SUMO-immunoprecipitation in combination with quantitative mass spectrometry (SILAC). The group of proteins whose abundance was increased both in the total proteome and in the SUMO IPs from hypoxic conditions was enriched in enzymes linked to the hypoxic response. In contrast, proteins whose SUMOylation status changed without concomitant change in abundance were predominantly transcriptions factors or transcription regulators. Particularly interesting was transcription factor TFAP2A (Activating enhancer binding Protein 2 alpha), whose sumoylation decreased on hypoxia. TFAP2A is known to interact with HIF-1 and we provide evidence that deSUMOylation of TFAP2A enhances the transcriptional activity of HIF-1 under hypoxic conditions. Overall, these results support the notion that SUMO-regulated signaling pathways contribute at many distinct levels to the cellular response to low oxygen.
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Affiliation(s)
- Georgia Chachami
- From the ‡Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece;
- ‡‡Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg University, 69120 Heidelberg, Germany
| | - Nicolas Stankovic-Valentin
- §Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg University, 69120 Heidelberg, Germany
| | - Angeliki Karagiota
- From the ‡Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece
| | - Angeliki Basagianni
- From the ‡Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece
| | - Uwe Plessmann
- ¶Bioanalytical Mass Spectrometry Group Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany
| | - Henning Urlaub
- ¶Bioanalytical Mass Spectrometry Group Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany
- ‖Bioanalytics, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Frauke Melchior
- §Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), DKFZ-ZMBH Alliance, Heidelberg University, 69120 Heidelberg, Germany
| | - George Simos
- From the ‡Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece
- **Gerald Bronfman Department of Oncology, Faculty of Medicine, McGill University, Montreal, Canada
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Su K, Chen S, Ye J, Kuang L, Zhang T, Wang H, Yang X. A functional indel polymorphism rs34396413 in TFAP2A intron-5 significantly increases female encephalocele risk in Han Chinese population. Childs Nerv Syst 2019; 35:965-72. [PMID: 31020390 DOI: 10.1007/s00381-019-04131-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/18/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE Transcription factor AP-2 alpha (TFAP2A) is an important transcriptional factor involved in various aspects of embryo development including neural tube closure. Tfap2a deficiency led to the failure of cranial neural-tube closure in mice and other model organisms. However, it remains largely unknown about the relationship between TFAP2A variants and human cranial neural tube defects (NTDs). The aim of this study was to find the association between TFAP2A intronic SNP rs3439413 and NTDs and to explore its function. METHODS We found an indel polymorphism rs3439413 in TFAP2A intron-5 from our previous target sequencing project. In this study, we validate its association with human NTDs in Shanxi group containing 266 NTD cases and 295 matched controls. Then, we investigated its function on transcriptional activity by dual-luciferase assays and EMSA. RESULTS The minor allele of rs34396413 significantly increased the risk of NTD in a Han Chinese population of Shanxi Province (P = 0.0082, OR = 1.45, 95%CI = 1.10-1.90), especially the risk of encephalocele for female (P = 0.0064, OR = 2.46, 95%CI = 1.22-4.94). Functional analysis revealed the minor allele of rs34396413 decreases transcriptional activity and attenuates transcription factor binding affinity. CONCLUSION We have demonstrated that the minor allele of rs34396413 was a risk factor of NTD in the Shanxi group, providing new insight into the study of NTD etiology.
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Song J, Diao F, Ma X, Xu S, Cui Y, Jiang S, Liu J. Androgen upregulates NR4A1 via the TFAP2A and ETS signaling networks. Int J Biochem Cell Biol 2019; 113:1-7. [PMID: 31146003 DOI: 10.1016/j.biocel.2019.05.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/20/2019] [Accepted: 05/25/2019] [Indexed: 01/28/2023]
Abstract
Hyperandrogenism is one of the clinical and biochemical characteristics of polycystic ovary syndrome (PCOS). Our previous studies confirmed that nuclear receptor subfamily 4 group A member 1 (NR4A1), as a differentially expressed gene in the ovaries of PCOS patients, was upregulated by increased androgen. However, the potential mechanism of NR4A1 upregulation remains unknown. To elucidate the molecular mechanisms involved in NR4A1 regulation, we cloned and characterized the promoter regions of the NR4A1 gene using a series of truncated promoter plasmids in luciferase reporter assays. We identified two unique core promoters of NR4A1 located within the +1055/+1251 and +3183/+3233 regions relative to the transcription start site. TFAP2A downregulated NR4A1 expression, while five ETS transcription factors, ETS1, ELK1, ERG, FLI1 and SPI1, could upregulate NR4A1 promoter activity in HeLa cells. Of these transcription factors, ETS1 and ELK1 were the most effective ones. Moreover, all six transcription factors were confirmed to interact directly with the NR4A1 promoter. In conclusion, this study presents the first description that TFAP2A and ETS family signaling networks are involved in the androgen-mediated transcriptional regulation of NR4A1, which contributes to the understanding of the molecular mechanisms involved in the TFAP2A-NR4A1 and ETS-NR4A1 signaling networks in PCOS.
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Affiliation(s)
- Jie Song
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Feiyang Diao
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
| | - Xiang Ma
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Siliang Xu
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Yugui Cui
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Shiwen Jiang
- Department of Biomedical Science, Mercer University School of Medicine, Savannah, GA 31404, USA
| | - Jiayin Liu
- The State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
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Laugsch M, Bartusel M, Rehimi R, Alirzayeva H, Karaolidou A, Crispatzu G, Zentis P, Nikolic M, Bleckwehl T, Kolovos P, van Ijcken WFJ, Šarić T, Koehler K, Frommolt P, Lachlan K, Baptista J, Rada-Iglesias A. Modeling the Pathological Long-Range Regulatory Effects of Human Structural Variation with Patient-Specific hiPSCs. Cell Stem Cell 2019; 24:736-752.e12. [PMID: 30982769 DOI: 10.1016/j.stem.2019.03.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 01/03/2019] [Accepted: 03/06/2019] [Indexed: 11/18/2022]
Abstract
The pathological consequences of structural variants disrupting 3D genome organization can be difficult to elucidate in vivo due to differences in gene dosage sensitivity between mice and humans. This is illustrated by branchiooculofacial syndrome (BOFS), a rare congenital disorder caused by heterozygous mutations within TFAP2A, a neural crest regulator for which humans, but not mice, are haploinsufficient. Here, we present a BOFS patient carrying a heterozygous inversion with one breakpoint located within a topologically associating domain (TAD) containing enhancers essential for TFAP2A expression in human neural crest cells (hNCCs). Using patient-specific hiPSCs, we show that, although the inversion shuffles the TFAP2A hNCC enhancers with novel genes within the same TAD, this does not result in enhancer adoption. Instead, the inversion disconnects one TFAP2A allele from its cognate enhancers, leading to monoallelic and haploinsufficient TFAP2A expression in patient hNCCs. Our work illustrates the power of hiPSC differentiation to unveil long-range pathomechanisms.
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Affiliation(s)
- Magdalena Laugsch
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany; Institute of Human Genetics, CMMC, University Hospital Cologne, Cologne, Germany
| | - Michaela Bartusel
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Rizwan Rehimi
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Hafiza Alirzayeva
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Agathi Karaolidou
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Giuliano Crispatzu
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Peter Zentis
- Cluster of Excellence Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Milos Nikolic
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Tore Bleckwehl
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Petros Kolovos
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | | | - Tomo Šarić
- Center for Physiology and Pathophysiology, Institute for Neurophysiology, Medical Faculty, University of Cologne, Cologne, Germany
| | - Katrin Koehler
- Department of Pediatrics, University Clinic Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - Peter Frommolt
- Cluster of Excellence Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Katherine Lachlan
- Human Genetics & Genomic Medicine, University of Southampton, Southampton General Hospital, Southampton, UK; Clinical Genetics Service, University Hospital Southampton NHS Foundation Trust, Princess Anne Hospital, Southampton, UK
| | - Julia Baptista
- Molecular Genetics Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK; Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK.
| | - Alvaro Rada-Iglesias
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany; Cluster of Excellence Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany; Institute of Biomedicine and Biotechnology of Cantabria (IBBTEC), University of Cantabria, Cantabria, Spain.
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Kołat D, Kałuzińska Ż, Bednarek AK, Płuciennik E. The biological characteristics of transcription factors AP-2α and AP-2γ and their importance in various types of cancers. Biosci Rep 2019; 39:BSR20181928. [PMID: 30824562 PMCID: PMC6418405 DOI: 10.1042/bsr20181928] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 02/11/2019] [Accepted: 02/27/2019] [Indexed: 02/07/2023] Open
Abstract
The Activator Protein 2 (AP-2) transcription factor (TF) family is vital for the regulation of gene expression during early development as well as carcinogenesis process. The review focusses on the AP-2α and AP-2γ proteins and their dualistic regulation of gene expression in the process of carcinogenesis. Both AP-2α and AP-2γ influence a wide range of physiological or pathological processes by regulating different pathways and interacting with diverse molecules, i.e. other proteins, long non-coding RNAs (lncRNA) or miRNAs. This review summarizes the newest information about the biology of two, AP-2α and AP-2γ, TFs in the carcinogenesis process. We emphasize that these two proteins could have either oncogenic or suppressive characteristics depending on the type of cancer tissue or their interaction with specific molecules. They have also been found to contribute to resistance and sensitivity to chemotherapy in oncological patients. A better understanding of molecular network of AP-2 factors and other molecules may clarify the atypical molecular mechanisms occurring during carcinogenesis, and may assist in the recognition of new diagnostic biomarkers.
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Affiliation(s)
- Damian Kołat
- Faculty of Biomedical Sciences and Postgraduate Education, Medical University of Lodz, Lodz, Poland
| | - Żaneta Kałuzińska
- Faculty of Biomedical Sciences and Postgraduate Education, Medical University of Lodz, Lodz, Poland
| | - Andrzej K Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz, Poland
| | - Elżbieta Płuciennik
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz, Poland
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Yuan J, Zhang N, Zheng Y, Chen YD, Liu J, Yang M. LncRNA GAS5 Indel Genetic Polymorphism Contributes to Glioma Risk Through Interfering Binding of Transcriptional Factor TFAP2A. DNA Cell Biol 2018; 37:750-757. [PMID: 30074406 DOI: 10.1089/dna.2018.4215] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Long noncoding RNA (lncRNA) growth arrest-specific 5 (GAS5) accumulates in growth-arrested cells and plays a crucial role in progression of multiple cancers, including glioma. There is a functional GAS5 rs145204276 indel genetic polymorphism in the promoter region. However, it is still largely unknown how the GAS5 indel genetic polymorphism is involved in etiology of glioma. We evaluated the association between the GAS5 indel genetic polymorphism and glioma development in a Chinese population. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated by logistic regression adjusted by age and sex. We found that carriers of the GAS5 del allele was significantly associated with elevated risk of glioma (OR = 1.71, 95% CI = 1.34-2.18, p = 1.7 × 10-5). Compared with the GAS5 ins/ins genotype, the ins/del genotype or the del/del genotype was significantly associated with 1.57-fold or 2.61-fold increased glioma susceptibility (p = 0.001 or p = 9.0 × 10-6). When patients were stratified by disease subtypes, The GAS5 indel polymorphism was not significantly associated with risk of oligodendroglial tumor (p = 0.353). Integrated analyses indicated that the GAS5 indel polymorphism might alert the binding of transcriptional factor TFAP2A and activation of its expression based on ENCODE and REMBRANDT databases. Our results highlight the importance and potential of the biological relevance of the GAS5 indel genetic variant in glioma predisposition.
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Affiliation(s)
- Jupeng Yuan
- 1 Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital Affiliated to Shandong University , Shandong Academy of Medical Sciences, Jinan, China
| | - Nasha Zhang
- 1 Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital Affiliated to Shandong University , Shandong Academy of Medical Sciences, Jinan, China .,2 Cheeloo College of Medicine, Shandong University , Jinan, China
| | - Yan Zheng
- 1 Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital Affiliated to Shandong University , Shandong Academy of Medical Sciences, Jinan, China .,2 Cheeloo College of Medicine, Shandong University , Jinan, China .,3 Central Laboratory, Jinan Central Hospital Affiliated to Shandong University , Jinan, China
| | - Yi-Dong Chen
- 4 Department of Radiation Oncology, Beijing Shijitan Hospital, Capital Medical University , Beijing, China
| | - Jie Liu
- 1 Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital Affiliated to Shandong University , Shandong Academy of Medical Sciences, Jinan, China
| | - Ming Yang
- 1 Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital Affiliated to Shandong University , Shandong Academy of Medical Sciences, Jinan, China
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43
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Tchieu J, Zimmer B, Fattahi F, Amin S, Zeltner N, Chen S, Studer L. A Modular Platform for Differentiation of Human PSCs into All Major Ectodermal Lineages. Cell Stem Cell 2018; 21:399-410.e7. [PMID: 28886367 DOI: 10.1016/j.stem.2017.08.015] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/02/2017] [Accepted: 08/21/2017] [Indexed: 12/22/2022]
Abstract
Directing the fate of human pluripotent stem cells (hPSCs) into different lineages requires variable starting conditions and components with undefined activities, introducing inconsistencies that confound reproducibility and assessment of specific perturbations. Here we introduce a simple, modular protocol for deriving the four main ectodermal lineages from hPSCs. By precisely varying FGF, BMP, WNT, and TGFβ pathway activity in a minimal, chemically defined medium, we show parallel, robust, and reproducible derivation of neuroectoderm, neural crest (NC), cranial placode (CP), and non-neural ectoderm in multiple hPSC lines, on different substrates independently of cell density. We highlight the utility of this system by interrogating the role of TFAP2 transcription factors in ectodermal differentiation, revealing the importance of TFAP2A in NC and CP specification, and performing a small-molecule screen that identified compounds that further enhance CP differentiation. This platform provides a simple stage for systematic derivation of the entire range of ectodermal cell types.
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Affiliation(s)
- Jason Tchieu
- The Center for Stem Cell Biology, Sloan Kettering Institute, New York, NY 10065, USA; Developmental Biology Program, Sloan Kettering Institute, New York, NY 10065, USA
| | - Bastian Zimmer
- The Center for Stem Cell Biology, Sloan Kettering Institute, New York, NY 10065, USA; Developmental Biology Program, Sloan Kettering Institute, New York, NY 10065, USA
| | - Faranak Fattahi
- The Center for Stem Cell Biology, Sloan Kettering Institute, New York, NY 10065, USA; Developmental Biology Program, Sloan Kettering Institute, New York, NY 10065, USA; Weill Graduate School of Medical Sciences of Cornell University, New York, NY 10065, USA
| | - Sadaf Amin
- Weill Graduate School of Medical Sciences of Cornell University, New York, NY 10065, USA; Department of Surgery, Weill Medical College of Cornell University, New York, NY 10065, USA
| | - Nadja Zeltner
- The Center for Stem Cell Biology, Sloan Kettering Institute, New York, NY 10065, USA; Developmental Biology Program, Sloan Kettering Institute, New York, NY 10065, USA
| | - Shuibing Chen
- Department of Surgery, Weill Medical College of Cornell University, New York, NY 10065, USA
| | - Lorenz Studer
- The Center for Stem Cell Biology, Sloan Kettering Institute, New York, NY 10065, USA; Developmental Biology Program, Sloan Kettering Institute, New York, NY 10065, USA.
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Chen XF, Zhu DL, Yang M, Hu WX, Duan YY, Lu BJ, Rong Y, Dong SS, Hao RH, Chen JB, Chen YX, Yao S, Thynn HN, Guo Y, Yang TL. An Osteoporosis Risk SNP at 1p36.12 Acts as an Allele-Specific Enhancer to Modulate LINC00339 Expression via Long-Range Loop Formation. Am J Hum Genet 2018; 102:776-793. [PMID: 29706346 PMCID: PMC5986728 DOI: 10.1016/j.ajhg.2018.03.001] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 02/28/2018] [Indexed: 01/10/2023] Open
Abstract
Genome-wide association studies (GWASs) have reproducibly associated variants within intergenic regions of 1p36.12 locus with osteoporosis, but the functional roles underlying these noncoding variants are unknown. Through an integrative functional genomic and epigenomic analyses, we prioritized rs6426749 as a potential causal SNP for osteoporosis at 1p36.12. Dual-luciferase assay and CRISPR/Cas9 experiments demonstrate that rs6426749 acts as a distal allele-specific enhancer regulating expression of a lncRNA (LINC00339) (∼360 kb) via long-range chromatin loop formation and that this loop is mediated by CTCF occupied near rs6426749 and LINC00339 promoter region. Specifically, rs6426749-G allele can bind transcription factor TFAP2A, which efficiently elevates the enhancer activity and increases LINC00339 expression. Downregulation of LINC00339 significantly increases the expression of CDC42 in osteoblast cells, which is a pivotal regulator involved in bone metabolism. Our study provides mechanistic insight into how a noncoding SNP affects osteoporosis by long-range interaction, a finding that could indicate promising therapeutic targets for osteoporosis.
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Affiliation(s)
- Xiao-Feng Chen
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Dong-Li Zhu
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Man Yang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Wei-Xin Hu
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yuan-Yuan Duan
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Bing-Jie Lu
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yu Rong
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Shan-Shan Dong
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Ruo-Han Hao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jia-Bin Chen
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yi-Xiao Chen
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Shi Yao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Hlaing Nwe Thynn
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yan Guo
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Tie-Lin Yang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, and Institute of Molecular Genetics, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
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45
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Seberg HE, Van Otterloo E, Cornell RA. Beyond MITF: Multiple transcription factors directly regulate the cellular phenotype in melanocytes and melanoma. Pigment Cell Melanoma Res 2018. [PMID: 28649789 DOI: 10.1111/pcmr.12611] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
MITF governs multiple steps in the development of melanocytes, including specification from neural crest, growth, survival, and terminal differentiation. In addition, the level of MITF activity determines the phenotype adopted by melanoma cells, whether invasive, proliferative, or differentiated. However, MITF does not act alone. Here, we review literature on the transcription factors that co-regulate MITF-dependent genes. ChIP-seq studies have indicated that the transcription factors SOX10, YY1, and TFAP2A co-occupy subsets of regulatory elements bound by MITF in melanocytes. Analyses at single loci also support roles for LEF1, RB1, IRF4, and PAX3 acting in combination with MITF, while sequence motif analyses suggest that additional transcription factors colocalize with MITF at many melanocyte-specific regulatory elements. However, the precise biochemical functions of each of these MITF collaborators and their contributions to gene expression remain to be elucidated. Analogous to the transcriptional networks in morphogen-patterned tissues during embryogenesis, we anticipate that the level of MITF activity is controlled not only by the concentration of activated MITF, but also by additional transcription factors that either quantitatively or qualitatively influence the expression of MITF-target genes.
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Affiliation(s)
- Hannah E Seberg
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA, USA
| | - Eric Van Otterloo
- SDM-Craniofacial Biology, University of Colorado - Anschutz Medical Campus, Aurora, CO, USA
| | - Robert A Cornell
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA, USA.,Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
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46
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Miranda P, Enkhmandakh B, Bayarsaihan D. TFII-I and AP2α Co-Occupy the Promoters of Key Regulatory Genes Associated with Craniofacial Development. Cleft Palate Craniofac J 2018; 55:865-870. [PMID: 28085512 DOI: 10.1597/15-214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES The aim of this study is to define the candidate target genes for TFII-I and AP2α regulation in neural crest progenitor cells. DESIGN The GTF2I and GTF2IRD1 genes encoding the TFII-I family of transcription factors are prime candidates for the Williams-Beuren syndrome, a complex multisystem disorder characterized by craniofacial, skeletal, and neurocognitive deficiencies. AP2α, a product of the TFAP2A gene, is a master regulator of neural crest cell lineage. Mutations in TFAP2A cause branchio-oculo-facial syndrome characterized by dysmorphic facial features and orofacial clefts. In this study, we examined the genome-wide promoter occupancy of TFII-I and AP2α in neural crest progenitor cells derived from in vitro-differentiated human embryonic stem cells. RESULTS Our study revealed that TFII-I and AP2α co-occupy a selective set of genes that control the specification of neural crest cells. CONCLUSIONS The data suggest that TFII-I and AP2α may coordinately control the expression of genes encoding chromatin-modifying proteins, epigenetic enzymes, transcription factors, and signaling proteins.
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47
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De Andrade JP, Lorenzen AW, Wu VT, Bogachek MV, Park JM, Gu VW, Sevenich CM, Cassady VC, Beck AC, Kulak MV, Robinson RA, Lal G, Weigel RJ. Targeting the SUMO pathway as a novel treatment for anaplastic thyroid cancer. Oncotarget 2017; 8:114801-114815. [PMID: 29383121 PMCID: PMC5777733 DOI: 10.18632/oncotarget.21954] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 09/15/2017] [Indexed: 12/20/2022] Open
Abstract
Cancer stem cells (CSCs) are expanded in anaplastic thyroid cancer (ATC) and standard treatment approaches have failed to improve survival, suggesting a need to specifically target the CSC population. Recent studies in breast and colorectal cancer demonstrated that inhibition of the SUMO pathway repressed CD44 and cleared the CSC population, mediated through SUMO-unconjugated TFAP2A. We sought to evaluate effects of inhibiting the SUMO pathway in ATC. ATC cell lines and primary ATC tumor samples were evaluated. The SUMO pathway was inhibited by knockdown of PIAS1 and use of SUMO inhibitors anacardic acid and PYR-41. The expression of TFAP2A in primary ATC was examined by immunohistochemistry. All ATC cell lines expressed TFAP2A but only 8505C expressed SUMO-conjugated TFAP2A. In 8505C only, inhibition of the SUMO pathway by knockdown of PIAS1 or treatment with SUMO inhibitors repressed expression of CD44 with a concomitant loss of SUMO-conjugated TFAP2A. The effect of SUMO inhibition on CD44 expression was dependent upon TFAP2A. Treatment with SUMO inhibitors resulted in a statistically improved tumor-free survival in mice harboring 8505C xenografts. An examination of primary ATC tissue determined that TFAP2A was expressed in 4 of 11 tumors surveyed. We conclude that inhibition of the SUMO pathway repressed the CSC population, delaying the outgrowth of tumor xenografts in ATC. The effect of SUMO inhibition was dependent upon expression of SUMO-conjugated TFAP2A, which may serve as a molecular marker for therapeutic effects of SUMO inhibitors. The findings provide pre-clinical evidence for development of SUMO inhibitors for the treatment of ATC.
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Affiliation(s)
| | | | - Vincent T Wu
- Department of Surgery, University of Iowa, Iowa City, IA, USA
| | | | - Jung M Park
- Department of Surgery, University of Iowa, Iowa City, IA, USA.,Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
| | - Vivian W Gu
- Department of Surgery, University of Iowa, Iowa City, IA, USA.,Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, USA
| | | | | | - Anna C Beck
- Department of Surgery, University of Iowa, Iowa City, IA, USA
| | - Mikhail V Kulak
- Department of Surgery, University of Iowa, Iowa City, IA, USA
| | | | - Geeta Lal
- Department of Surgery, University of Iowa, Iowa City, IA, USA
| | - Ronald J Weigel
- Department of Surgery, University of Iowa, Iowa City, IA, USA.,Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA.,Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, USA
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48
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Zhu Z, Meng W, Liu P, Zhu X, Liu Y, Zou H. DNA hypomethylation of a transcription factor binding site within the promoter of a gout risk gene NRBP1 upregulates its expression by inhibition of TFAP2A binding. Clin Epigenetics 2017; 9:99. [PMID: 28932319 PMCID: PMC5603049 DOI: 10.1186/s13148-017-0401-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 09/05/2017] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Genome-wide association studies (GWASs) have identified dozens of loci associated with gout, but for most cases, the risk genes and the underlying molecular mechanisms contributing to these associations are unknown. This study sought to understand the molecular mechanism of a common genetic variant, rs780093, in the development of gout, both in vitro and in vivo. RESULTS Nuclear receptor binding protein 1 (NRBP1), as a gout risk gene, and its regulatory region, 72 bp upstream of the transcription start site, designated as B1, were identified through integrative analyses of genome-wide genotype and DNA methylation data. We observed elevated NRBP1 expression in human peripheral blood mononuclear cells (PBMCs) from gout patients. In vitro luciferase reporter and protein pulldown assay results showed that DNA methylation could increase the binding of the transcription factor TFAP2A to B1, leading to suppressed gene expression. There results were further confirmed by in vivo bisulfite pyrosequencing showing that hypomethylation on B1 is associated with increased NRBP1 expression in gout patients. CONCLUSIONS Hypomethylation at the promoter region of NRBP1 reduces the binding of TFAP2A and thus leads to elevated NRBP1 expression, which might contribute to the development of gout.
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Affiliation(s)
- Zaihua Zhu
- Division of Rheumatology and Immunology, Huashan Hospital, Fudan University, Shanghai, China
- Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Weida Meng
- The Ministry of Education Key Laboratory of Metabolism and Molecular Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Peiru Liu
- The Ministry of Education Key Laboratory of Metabolism and Molecular Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xiaoxia Zhu
- Division of Rheumatology and Immunology, Huashan Hospital, Fudan University, Shanghai, China
- Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Yun Liu
- The Ministry of Education Key Laboratory of Metabolism and Molecular Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Hejian Zou
- Division of Rheumatology and Immunology, Huashan Hospital, Fudan University, Shanghai, China
- Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
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49
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Dimitrova Y, Gruber AJ, Mittal N, Ghosh S, Dimitriades B, Mathow D, Grandy WA, Christofori G, Zavolan M. TFAP2A is a component of the ZEB1/2 network that regulates TGFB1-induced epithelial to mesenchymal transition. Biol Direct 2017; 12:8. [PMID: 28412966 PMCID: PMC5392957 DOI: 10.1186/s13062-017-0180-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 03/22/2017] [Indexed: 01/28/2023] Open
Abstract
Background The transition between epithelial and mesenchymal phenotypes (EMT) occurs in a variety of contexts. It is critical for mammalian development and it is also involved in tumor initiation and progression. Master transcription factor (TF) regulators of this process are conserved between mouse and human. Methods From a computational analysis of a variety of high-throughput sequencing data sets we initially inferred that TFAP2A is connected to the core EMT network in both species. We then analysed publicly available human breast cancer data for TFAP2A expression and also studied the expression (by mRNA sequencing), activity (by monitoring the expression of its predicted targets), and binding (by electrophoretic mobility shift assay and chromatin immunoprecipitation) of this factor in a mouse mammary gland EMT model system (NMuMG) cell line. Results We found that upon induction of EMT, the activity of TFAP2A, reflected in the expression level of its predicted targets, is up-regulated in a variety of systems, both murine and human, while TFAP2A’s expression is increased in more “stem-like” cancers. We provide strong evidence for the direct interaction between the TFAP2A TF and the ZEB2 promoter and we demonstrate that this interaction affects ZEB2 expression. Overexpression of TFAP2A from an exogenous construct perturbs EMT, however, in a manner similar to the downregulation of endogenous TFAP2A that takes place during EMT. Conclusions Our study reveals that TFAP2A is a conserved component of the core network that regulates EMT, acting as a repressor of many genes, including ZEB2. Reviewers This article has been reviewed by Dr. Martijn Huynen and Dr. Nicola Aceto. Electronic supplementary material The online version of this article (doi:10.1186/s13062-017-0180-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yoana Dimitrova
- Biozentrum, University of Basel, Klingelbergstrasse 50-70, CH-4056, Basel, Switzerland
| | - Andreas J Gruber
- Biozentrum, University of Basel, Klingelbergstrasse 50-70, CH-4056, Basel, Switzerland
| | - Nitish Mittal
- Biozentrum, University of Basel, Klingelbergstrasse 50-70, CH-4056, Basel, Switzerland
| | - Souvik Ghosh
- Biozentrum, University of Basel, Klingelbergstrasse 50-70, CH-4056, Basel, Switzerland
| | - Beatrice Dimitriades
- Biozentrum, University of Basel, Klingelbergstrasse 50-70, CH-4056, Basel, Switzerland
| | - Daniel Mathow
- Department of Cellular and Molecular Pathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - William Aaron Grandy
- Biozentrum, University of Basel, Klingelbergstrasse 50-70, CH-4056, Basel, Switzerland
| | - Gerhard Christofori
- Department of Biomedicine, University of Basel, Mattenstrasse 28, CH-4058, Basel, Switzerland
| | - Mihaela Zavolan
- Biozentrum, University of Basel, Klingelbergstrasse 50-70, CH-4056, Basel, Switzerland.
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50
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Bogachek MV, Park JM, De Andrade JP, Lorenzen AW, Kulak MV, White JR, Gu VW, Wu VT, Weigel RJ. Inhibiting the SUMO Pathway Represses the Cancer Stem Cell Population in Breast and Colorectal Carcinomas. Stem Cell Reports 2016; 7:1140-1151. [PMID: 27916539 PMCID: PMC5161532 DOI: 10.1016/j.stemcr.2016.11.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 11/01/2016] [Accepted: 11/02/2016] [Indexed: 11/29/2022] Open
Abstract
Many solid cancers have an expanded CD44+/hi/CD24−/low cancer stem cell (CSC) population, which are relatively chemoresistant and drive recurrence and metastasis. Achieving a more durable response requires the development of therapies that specifically target CSCs. Recent evidence indicated that inhibiting the SUMO pathway repressed tumor growth and invasiveness, although the mechanism has yet to be clarified. Here, we demonstrate that inhibition of the SUMO pathway repressed MMP14 and CD44 with a concomitant reduction in cell invasiveness and functional loss of CSCs in basal breast cancer. Similar effects were demonstrated with a panel of E1 and E3 SUMO inhibitors. Identical results were obtained in a colorectal cancer cell line and primary colon cancer cells. In both breast and colon cancer, SUMO-unconjugated TFAP2A mediated the effects of SUMO inhibition. These data support the development of SUMO inhibitors as an approach to specifically target the CSC population in breast and colorectal cancer. Sumoylation regulates CD44 and MMP14 expression in basal breast and colon cancer SUMO inhibition clears cancer stem cells, repressing invasiveness and tumor growth Anacardic acid functions as a SUMO inhibitor to repress cancer stem cells TFAP2A mediates anti-tumor effects of SUMO inhibition in breast and colon cancers
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Affiliation(s)
- Maria V Bogachek
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - Jung M Park
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - James P De Andrade
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - Allison W Lorenzen
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - Mikhail V Kulak
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - Jeffrey R White
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - Vivian W Gu
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - Vincent T Wu
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA
| | - Ronald J Weigel
- Department of Surgery, University of Iowa, 200 Hawkins Drive, 1516 JCP, Iowa City, IA 52242, USA.
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