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Yu X, Yao X, Song F, Zhu X. T-Box Transcription Factor 2 Mediates Chemoresistance of Endometrial Cancer via Regulating FSP1-involved Ferroptosis. Cell Biochem Biophys 2024:10.1007/s12013-024-01518-z. [PMID: 39325362 DOI: 10.1007/s12013-024-01518-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2024] [Indexed: 09/27/2024]
Abstract
Chemotherapy is increasingly being used in the first-line treatment of endometrial cancer (EC) patients. However, chemoresistance seriously affects its efficacy. Understanding the underlying molecular mechanisms is critical for EC treatment. We explored the regulatory role of T-Box transcription factor 2 (TBX2)-ferroptosis suppressor protein 1 (FSP1) axis in ferroptosis and chemoresistance of EC. Cisplatin-resistant cell line Ishikawa/DDP cells were utilized to generate TBX2 and FSP1 overexpression and knockdown stable cell lines by using lentivirus infection and puromycin selection. Cell viability and ferroptosis status were evaluated in EC cells with or without Cisplatin and/or FSP1 inhibitor (iFSP1) using CKK-8, lipid peroxidation, malondialdehyde, and lactate dehydrogenase release assays. Endometrial carcinoma xenograft mouse model was established to further explore the function of TBX2-FSP1 axis on ferroptosis and tumor progression in EC. TBX2 suppressed Cisplatin-induced ferroptosis through up-regulating FSP1 expression level in EC cells. On the contrary, knockdown of TBX2 reduced FSP1 expression and significantly promoted Cisplatin-induced ferroptosis. TBX2 or FSP1 overexpression and knockdown promote and inhibit EC tumor growth under Cisplatin treatment, respectively. Interestingly, silence FSP1 could reverse TBX2-mediated ferroptosis inhibition and tumor-promoting effect. TBX2-FSP1 axis inhibits ferroptosis and enhances the Cisplatin resistance, which will provide an important theoretical basis and potential solution for the clinical treatment of EC.
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Affiliation(s)
- Xiaohui Yu
- Department of Gynecology, Zibo Central Hospital, Gongqingtuan Road, Zhangdian District, Zibo, 255000, Shandong, China
| | - Xuemei Yao
- Department of Gastroenterology, Zibo Central Hospital, Gongqingtuan Road, Zhangdian District, Zibo, 255000, Shandong, China
| | - Fangfang Song
- Department of Cardiovascular Medicine, Zibo Central Hospital, Gongqingtuan Road, Zhangdian District, Zibo, 255000, Shandong, China
| | - Xiaolin Zhu
- Center for Reproductive Medicine, Zibo Central Hospital, Gongqingtuan Road, Zhangdian District, Zibo, 255000, Shandong, China.
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Li S, Luo X, Sun M, Wang Y, Zhang Z, Jiang J, Hu D, Zhang J, Wu Z, Wang Y, Huang W, Xia L. Context-dependent T-BOX transcription factor family: from biology to targeted therapy. Cell Commun Signal 2024; 22:350. [PMID: 38965548 PMCID: PMC11225425 DOI: 10.1186/s12964-024-01719-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 06/17/2024] [Indexed: 07/06/2024] Open
Abstract
T-BOX factors belong to an evolutionarily conserved family of transcription factors. T-BOX factors not only play key roles in growth and development but are also involved in immunity, cancer initiation, and progression. Moreover, the same T-BOX molecule exhibits different or even opposite effects in various developmental processes and tumor microenvironments. Understanding the multiple roles of context-dependent T-BOX factors in malignancies is vital for uncovering the potential of T-BOX-targeted cancer therapy. We summarize the physiological roles of T-BOX factors in different developmental processes and their pathological roles observed when their expression is dysregulated. We also discuss their regulatory roles in tumor immune microenvironment (TIME) and the newly arising questions that remain unresolved. This review will help in systematically and comprehensively understanding the vital role of the T-BOX transcription factor family in tumor physiology, pathology, and immunity. The intention is to provide valuable information to support the development of T-BOX-targeted therapy.
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Affiliation(s)
- Siwen Li
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Xiangyuan Luo
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Mengyu Sun
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Yijun Wang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Zerui Zhang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Junqing Jiang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Dian Hu
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Jiaqian Zhang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Zhangfan Wu
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Yufei Wang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China
| | - Wenjie Huang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China.
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Huazhong University of Science and Technology, Ministry of Education and Ministry of Public Health, Wuhan, Hubei, 430030, China.
| | - Limin Xia
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, 430030, China.
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China.
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Min Y, Yu H, Li Q. Transcriptional and post-translational regulation of MITF mediated by bHLH domain during the melanogenesis and melanocyte proliferation in Crassostrea gigas. Int J Biol Macromol 2024; 266:131138. [PMID: 38547943 DOI: 10.1016/j.ijbiomac.2024.131138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/07/2024] [Accepted: 03/23/2024] [Indexed: 04/06/2024]
Abstract
Melanocyte differentiation is orchestrated by the master regulator transcription factor MITF. However, its ability to discern distinct binding sites linked to effective gene regulation remains poorly understood. This study aims to assess how co-activator acetyltransferase interacts with MITF to modulate their related lysine action, thereby mediating downstream gene regulation, including DNA affinity, stability, transcriptional activity, particularly in the process of shell pigmentation. Here, we have demonstrated that the CgMITF protein can be acetylated, further enabling selective amplification of the melanocyte maturation program. Collaboration with transcriptional co-regulator p300 advances MITF dynamically interplay with downstream targeted gene promoters. We have established that MITF activation was partially dependent on the bHLH domain, which was well conserved across species. The bHLH domain contained conserved lysine residues, including K6 and K43, which interacted with the E-box motif of downstream targeted-genes. Mutations at K6 and K43 lead to a decrease in the binding affinity of the E-box motif. CgMITF protein bound to the E-box motif within the promoter regions of the tyrosinase-related genes, contributing to melanogenesis, and also interacted with the E-box motif within the TBX2 promoter regions, associated with melanocyte proliferation. We elucidated how the bHLH domain links the transcriptional regulation and acetylation modifications in the melanocyte development in C. gigas.
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Affiliation(s)
- Yue Min
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao 266003, China
| | - Hong Yu
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao 266003, China
| | - Qi Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, and College of Fisheries, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Wan M, Liu J, Yang D, Xiao Z, Li X, Liu J, Huang L, Liu F, Zhang S, Tao Q, Xiao J, Cao Z. Dimethyl fumarate induces cardiac developmental toxicity in zebrafish via down-regulation of oxidative stress. Toxicology 2024; 503:153735. [PMID: 38272385 DOI: 10.1016/j.tox.2024.153735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/12/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
Dimethyl fumarate (DMF) is an immunosuppressant commonly used to treat multiple sclerosis and other autoimmune diseases. Despite known side effects such as lymphopenia, the effect of DMF on cardiac development remains unclear. To assess this, we used zebrafish to evaluate the cardiac developmental toxicity of DMF. Our study showed that DMF reduced the survival rate of zebrafish embryos, with those exposed to 1, 1.3, and 1.6 mg/L exhibiting heart rate reduction, shortened body length, delayed yolk sac absorption, pericardial edema, increased distance from sinus venous to bulbus arteriosus, and separation of cardiomyocytes and endocardial cells at 72 hpf. Heart development-related genes showed disorder, apoptosis-related genes were up-regulated, and the oxidative stress response was down-regulated. Treatment with cysteamine ameliorated the heart development defects. Our study demonstrates that DMF induces cardiac developmental toxicity in zebrafish, possibly by down-regulating oxidative stress responses. This study provides a certain research basis for further study of DMF-induced cardiac developmental toxicity, and provides some experimental evidence for future clinical application and study of DMF.
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Affiliation(s)
- Mengqi Wan
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Department of General Surgery,The Affiliated Children's Hospital of Nanchang University, Nanchang, Jiangxi 330006,China
| | - Jiejun Liu
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China
| | - Dou Yang
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China
| | - Zhonghao Xiao
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China
| | - Xue Li
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China
| | - Jieping Liu
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China
| | - Ling Huang
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China
| | - Fasheng Liu
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China
| | - Shouhua Zhang
- Department of General Surgery,The Affiliated Children's Hospital of Nanchang University, Nanchang, Jiangxi 330006,China
| | - Qiang Tao
- Department of General Surgery,The Affiliated Children's Hospital of Nanchang University, Nanchang, Jiangxi 330006,China
| | - Juhua Xiao
- Department of Ultrasound, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang 330006, Jiangxi, China.
| | - Zigang Cao
- Jiangxi Key Laboratory of Developmental Biology of Organs, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Ji'an, Jiangxi, China, College of Life Sciences, Clinical Research Center of Affiliated Hospital of Jinggangshan University, Jinggangshan University, Ji'an, 343009 Jiangxi, China.
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Miller GM, Brant TS, Goodrich JA, Kugel JF. Short-term exposure to ethanol induces transcriptional changes in nontumorigenic breast cells. FEBS Open Bio 2023; 13:1941-1952. [PMID: 37572351 PMCID: PMC10549231 DOI: 10.1002/2211-5463.13693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/15/2023] [Accepted: 08/11/2023] [Indexed: 08/14/2023] Open
Abstract
Breast cancer is a leading cause of cancer-related deaths in women. Many genetic and behavioral risk factors can contribute to the initiation and progression of breast cancer, one being alcohol consumption. Numerous epidemiological studies have established a positive correlation between alcohol consumption and breast cancer; however, the molecular basis for this link remains ill defined. Elucidating ethanol-induced changes to global transcriptional programming in breast cells is important to ultimately understand how alcohol and breast cancer are connected mechanistically. We investigated induced transcriptional changes in response to a short cellular exposure to moderate levels of alcohol. We treated the nontumorigenic breast cell line MCF10A and the tumorigenic breast cell lines MDA-MB-231 and MCF7, with ethanol for 6 h, and then captured the changes to ongoing transcription using 4-thiouridine metabolic labeling followed by deep sequencing. Only the MCF10A cell line exhibited statistically significant changes in newly transcribed RNA in response to ethanol treatment. Further experiments revealed that some ethanol-upregulated genes are sensitive to the dose of alcohol treatment, while others are not. Gene Ontology and biochemical pathway analyses revealed that ethanol-upregulated genes in MCF10A cells are enriched in biological functions that could contribute to cancer development.
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Affiliation(s)
| | - Tyler S. Brant
- Department of BiochemistryUniversity of Colorado BoulderCOUSA
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Huber LT, Kraus JM, Ezić J, Wanli A, Groth M, Laban S, Hoffmann TK, Wollenberg B, Kestler HA, Brunner C. Liquid biopsy: an examination of platelet RNA obtained from head and neck squamous cell carcinoma patients for predictive molecular tumor markers. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2023; 4:422-446. [PMID: 37455825 PMCID: PMC10344902 DOI: 10.37349/etat.2023.00143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/01/2023] [Indexed: 07/18/2023] Open
Abstract
Aim Recently, a tumor cell-platelet interaction was identified in different tumor entities, resulting in a transfer of tumor-derived RNA into platelets, named further "tumor-educated platelets (TEP)". The present pilot study aims to investigate whether such a tumor-platelet transfer of RNA occurs also in patients suffering from head and neck squamous cell carcinoma (HNSCC). Methods Sequencing analysis of RNA derived from platelets of tumor patients (TPs) and healthy donors (HDs) were performed. Subsequently, quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used for verification of differentially expressed genes in platelets from TPs and HDs in a second cohort of patients and HDs. Data were analyzed by applying bioinformatic tools. Results Sequencing of RNA derived from the tumor as well as from platelets of TPs and HDs revealed 426 significantly differentially existing RNA, at which 406 RNA were more and 20 RNA less abundant in platelets from TPs in comparison to that of HDs. In TPs' platelets, abundantly existing RNA coding for 49 genes were detected, characteristically expressed in epithelial cells and RNA, the products of which are involved in tumor progression. Applying bioinformatic tools and verification on a second TP/HD cohort, collagen type I alpha 1 chain (COL1A1) and zinc finger protein 750 (ZNF750) were identified as the strongest potentially platelet-RNA-sequencing (RNA-seq)-based biomarkers for HNSCC. Conclusions These results indicate a transfer of tumor-derived messenger RNA (mRNA) into platelets of HNSCC patients. Therefore, analyses of a patient's platelet RNA could be an efficient option for liquid biopsy in order to diagnose HNSCC or to monitor tumorigenesis as well as therapeutic responses at any time and in real time.
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Affiliation(s)
- Lisa T. Huber
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Johann M. Kraus
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Jasmin Ezić
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Amin Wanli
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Marco Groth
- Leibniz Institute of Aging – Fritz Lipmann Institute, CF DNA sequencing, 07745 Jena, Germany
| | - Simon Laban
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Thomas K. Hoffmann
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Barbara Wollenberg
- Clinic for Otorhinolaryngology, Head and Neck Surgery, Technical University of Munich, 80333 Munich, Germany
| | - Hans A. Kestler
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Cornelia Brunner
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
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Huang YY, Bao TY, Huang XQ, Lan QW, Huang ZM, Chen YH, Hu ZD, Guo XG. Machine learning algorithm to construct cuproptosis- and immune-related prognosis prediction model for colon cancer. World J Gastrointest Oncol 2023; 15:372-388. [PMID: 37009317 PMCID: PMC10052662 DOI: 10.4251/wjgo.v15.i3.372] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/22/2022] [Accepted: 02/15/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Over the past few years, research into the pathogenesis of colon cancer has progressed rapidly, and cuproptosis is an emerging mode of cellular apoptosis. Exploring the relationship between colon cancer and cuproptosis benefits in identifying novel biomarkers and even improving the outcome of the disease.
AIM To look at the prognostic relationship between colon cancer and the genes associated with cuproptosis and the immune system in patients. The main purpose was to assess whether reasonable induction of these biomarkers reduces mortality among patients with colon cancers.
METHOD Data obtained from The Cancer Genome Atlas and Gene Expression Omnibus and the Genotype-Tissue Expression were used in differential analysis to explore differential expression genes associated with cuproptosis and immune activation. The least absolute shrinkage and selection operator and Cox regression algorithm was applied to build a cuproptosis- and immune-related combination model, and the model was utilized for principal component analysis and survival analysis to observe the survival and prognosis of the patients. A series of statistically meaningful transcriptional analysis results demonstrated an intrinsic relationship between cuproptosis and the micro-environment of colon cancer.
RESULTS Once prognostic characteristics were obtained, the CDKN2A and DLAT genes related to cuproptosis were strongly linked to colon cancer: The first was a risk factor, whereas the second was a protective factor. The finding of the validation analysis showed that the comprehensive model associated with cuproptosis and immunity was statistically significant. Within the component expressions, the expressions of HSPA1A, CDKN2A, and UCN3 differed markedly. Transcription analysis primarily reflects the differential activation of related immune cells and pathways. Furthermore, genes linked to immune checkpoint inhibitors were expressed differently between the subgroups, which may reveal the mechanism of worse prognosis and the different sensitivities of chemotherapy.
CONCLUSION The prognosis of the high-risk group evaluated in the combined model was poorer, and cuproptosis was highly correlated with the prognosis of colon cancer. It is possible that we may be able to improve patients’ prognosis by regulating the gene expression to intervene the risk score.
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Affiliation(s)
- Yuan-Yi Huang
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Clinical Medicine, The First Clinical School of Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
| | - Ting-Yu Bao
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
| | - Xu-Qi Huang
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Clinical Medicine, The Sixth Clinical School of Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
| | - Qi-Wen Lan
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Medical Imageology, The Second Clinical School of Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
| | - Ze-Min Huang
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
| | - Yu-Han Chen
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
| | - Zhi-De Hu
- Department of Laboratory Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010010, Inner Mongolia Autonomous Region, China
| | - Xu-Guang Guo
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, King Med School of Laboratory Medicine, Guangzhou Medical University, Guangzhou 511436, Guangdong Province, China
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Rafeeq MM, Murad HAS, Najumuddin, Ullah S, Ahmed Z, Alam Q, Bilal M, Habib AH, Sain ZM, Khan MJ, Umair M. Case report: A novel de novo loss of function variant in the DNA-binding domain of TBX2 causes severe osteochondrodysplasia. Front Genet 2023; 13:1117500. [PMID: 36733940 PMCID: PMC9888409 DOI: 10.3389/fgene.2022.1117500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023] Open
Abstract
Background: T-box family members are transcription factors characterized by highly conserved residues corresponding to the DNA-binding domain known as the T-box. TBX2 has been implicated in several developmental processes, such as coordinating cell fate, patterning, and morphogenesis of a wide range of tissues and organs, including lungs, limbs, heart, kidneys, craniofacial structures, and mammary glands. Methods: In the present study, we have clinically and genetically characterized a proband showing a severe form of chondrodysplasia with developmental delay. Whole-exome sequencing (WES), Sanger sequencing, and 3D protein modeling were performed in the present investigation. Results: Whole-exome sequencing revealed a novel nonsense variant (c.529A>T; p.Lys177*; NM_005994.4) in TBX2. 3D-TBX2 protein modeling revealed a substantial reduction of the mutated protein, which might lead to a loss of function (LOF) or nonsense-mediated decay (NMD). Conclusion: This study has not only expanded the mutation spectrum in the gene TBX2 but also facilitated the diagnosis and genetic counseling of related features in affected families.
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Affiliation(s)
- Misbahuddin M. Rafeeq
- Department of Pharmacology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hussam Aly Sayed Murad
- Department of Pharmacology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Najumuddin
- National Center for Bioinformatics (NCB), Quaid-i-Azam University, Islamabad, Pakistan
| | - Samee Ullah
- National Center for Bioinformatics (NCB), Islamabad, Pakistan
| | - Zaheer Ahmed
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
| | - Qamre Alam
- Molecular Genomics and Precision Medicine, ExpressMed Laboratories, Zinj, Bahrain
| | - Muhammad Bilal
- Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Alaa Hamed Habib
- Department of Physiology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ziaullah M. Sain
- Department of Microbiology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Muhammad Umair
- Department of Life Sciences, School of Science, University of Management and Technology (UMT), Lahore, Pakistan,Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs (MNGH), Riyadh, Saudi Arabia,*Correspondence: Muhammad Umair, ,
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9
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Wang X, Li Z, Sun Y. T-box transcription factor 2 mediates antitumor immune response in cutaneous squamous cell carcinoma by regulating the expression of programmed death ligand 1. Skin Res Technol 2023; 29:e13254. [PMID: 36478592 PMCID: PMC9838745 DOI: 10.1111/srt.13254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/27/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Cutaneous squamous cell carcinoma (CSCC) is the second largest nonmelanoma skin cancer in humans; effective treatment options for metastatic CSCC are still in short. In this study, we aimed to explore the function of T-box transcription factor 2 (TBX2) in CSCC. METHODS The expression level of TBX2 was determined in CSCC samples and cell lines. Programmed death ligand 1 (PD-L1) expression was also analyzed in human CSCC samples. Furthermore, SCC13 cells were transfected with TBX2-DN (loss of function) or normal TBX2 to check its role in regulating PD-L1. RESULTS The expression level of TBX2 was positively correlated with the stage of CSCC. CSCC tumor cell lines have significantly higher expression levels of TBX2 than normal skin cell lines, and SCC13 cells showed the highest expression. PD-L1 expressions were upregulated during the progression of CSCC, and positively correlated with TBX2. Furthermore, PD-L1 expression increased in SCC13 cells overexpressing TBX2. However, TBX2 did not regulate the activation of IFNγ signal, but mediated the expression of interferon regulatory factor 1 (IRF1) and PD-L1 in both SCC13 and PDV cells. CONCLUSION TBX2 could mediate antitumor immune response in CSCC by regulating the expression of PD-L1 through IRF1. It might be a prognostic marker in CSCC and synergistic target for PD-1 immunotherapy.
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Affiliation(s)
- Xu Wang
- Department of Dermatology, the Affiliated Qingdao Municipal Hospital of Qingdao University, Qingdao, China
| | - Zhi Li
- Department of Dermatology, the Affiliated Qingdao Municipal Hospital of Qingdao University, Qingdao, China
| | - Yadi Sun
- Department of Rheumatology and Immunology, the Affiliated Qingdao Municipal Hospital of Qingdao University, Qingdao, China
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10
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Li S, Jiang H, Liu Z, Yu W, Cai X, Liu C, Xie W, Quan F, Gao W, Kim N, Yuan B, Chen C, Zhang J. TBX2 affects proliferation, apoptosis and cholesterol generation by regulating mitochondrial function and autophagy in bovine cumulus cell. Vet Med Sci 2022; 9:326-335. [PMID: 36446749 PMCID: PMC9857127 DOI: 10.1002/vms3.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND T-box transcription factor 2 (TBX2) is a member of T-box gene family whose members are highly conserved in evolution and encoding genes and are involved in the regulation of developmental processes. The encoding genes play an important role in growth and development. Although TBX2 has been widely studied in cancer cell growth and development, its biological functions in bovine cumulus cells remain unclear. OBJECTIVES This study aimed to investigate the regulatory effects of TBX2 in bovine cumulus cells. METHODS TBX2 gene was knockdown with siRNA to clarify the function in cellular physiological processes. Cell proliferation and cycle changes were determined by xCELLigence cell function analyzer and flow cytometry. Mitochondrial membrane potential and autophagy were detected by fluorescent dye staining and immunofluorescence techniques. Western blot and quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR) were used to detect the expression changes of proliferation and autophagy-related proteins. Aadenosine triphosphate (ATP) production, glucose metabolism, and cholesterol synthesis of cumulus cells were measured by optical density and chemiluminescence analysis. RESULTS After inhibition of TBX2, the cell cycle was disrupted. The levels of apoptosis, ratio of light chain 3 beta II/I, and reactive oxygen species were increased. The proliferation, expansion ability, ATP production, and the amount of cholesterol secreted by cumulus cells were significantly decreased. CONCLUSIONS TBX2 plays important roles in regulating the cells' proliferation, expansion, apoptosis, and autophagy; maintaining the mitochondrial function and cholesterol generation of bovine cumulus cells.
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Affiliation(s)
- Sheng‐Peng Li
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Hao Jiang
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Zi‐Bin Liu
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Wen‐Jie Yu
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Xiao‐Shi Cai
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Chang Liu
- School of GrainsJilin Business and Technology CollegeChangchunJilinChina
| | - Wen‐Yin Xie
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Fu‐shi Quan
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Wei Gao
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Nam‐Hyung Kim
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina,School of Biotechnology and HealthcareWuyi UniversityJiangmenGuangdongChina
| | - Bao Yuan
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Cheng‐Zhen Chen
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
| | - Jia‐Bao Zhang
- Department of Laboratory AnimalsJilin Provincial Key Laboratory of Animal ModelJilin UniversityChangchunJilinChina
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11
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Razghonova Y, Zymovets V, Wadelius P, Rakhimova O, Manoharan L, Brundin M, Kelk P, Romani Vestman N. Transcriptome Analysis Reveals Modulation of Human Stem Cells from the Apical Papilla by Species Associated with Dental Root Canal Infection. Int J Mol Sci 2022; 23:ijms232214420. [PMID: 36430898 PMCID: PMC9695896 DOI: 10.3390/ijms232214420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/12/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Interaction of oral bacteria with stem cells from the apical papilla (SCAP) can negatively affect the success of regenerative endodontic treatment (RET). Through RNA-seq transcriptomic analysis, we studied the effect of the oral bacteria Fusobacterium nucleatum and Enterococcus faecalis, as well as their supernatants enriched by bacterial metabolites, on the osteo- and dentinogenic potential of SCAPs in vitro. We performed bulk RNA-seq, on the basis of which differential expression analysis (DEG) and gene ontology enrichment analysis (GO) were performed. DEG analysis showed that E. faecalis supernatant had the greatest effect on SCAPs, whereas F. nucleatum supernatant had the least effect (Tanimoto coefficient = 0.05). GO term enrichment analysis indicated that F. nucleatum upregulates the immune and inflammatory response of SCAPs, and E. faecalis suppresses cell proliferation and cell division processes. SCAP transcriptome profiles showed that under the influence of E. faecalis the upregulation of VEGFA, Runx2, and TBX3 genes occurred, which may negatively affect the SCAP's osteo- and odontogenic differentiation. F. nucleatum downregulates the expression of WDR5 and TBX2 and upregulates the expression of TBX3 and NFIL3 in SCAPs, the upregulation of which may be detrimental for SCAPs' differentiation potential. In conclusion, the present study shows that in vitro, F. nucleatum, E. faecalis, and their metabolites are capable of up- or downregulating the expression of genes that are necessary for dentinogenic and osteogenic processes to varying degrees, which eventually may result in unsuccessful RET outcomes. Transposition to the clinical context merits some reservations, which should be approached with caution.
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Affiliation(s)
- Yelyzaveta Razghonova
- Department of Microbiology, Virology and Biotechnology, Mechnikov National University, 65000 Odesa, Ukraine
| | - Valeriia Zymovets
- Department of Odontology, Umeå University, 90187 Umeå, Sweden
- Correspondence:
| | - Philip Wadelius
- Department of Endodontics, Region of Västerbotten, 90189 Umeå, Sweden
| | - Olena Rakhimova
- Department of Odontology, Umeå University, 90187 Umeå, Sweden
| | - Lokeshwaran Manoharan
- National Bioinformatics Infrastructure Sweden (NBIS), Lund University, 22362 Lund, Sweden
| | - Malin Brundin
- Department of Odontology, Umeå University, 90187 Umeå, Sweden
| | - Peyman Kelk
- Section for Anatomy, Department of Integrative Medical Biology (IMB), Umeå University, 90187 Umeå, Sweden
| | - Nelly Romani Vestman
- Department of Odontology, Umeå University, 90187 Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, 90187 Umeå, Sweden
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12
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T-box transcription factor 19 promotes hepatocellular carcinoma metastasis through upregulating EGFR and RAC1. Oncogene 2022; 41:2225-2238. [PMID: 35217793 DOI: 10.1038/s41388-022-02249-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/29/2022] [Accepted: 02/14/2022] [Indexed: 12/21/2022]
Abstract
The effect of targeted therapy for metastatic hepatocellular carcinoma (HCC) is still unsatisfactory. Exploring the underlying mechanism of HCC metastasis is favorable to provide new therapeutic strategies. T-box (TBX) transcription factor family genes, which are crucial regulators in embryo and organ development, are vital for regulating tumor initiation, growth and metastasis. Here we explored the role of TBX19 in HCC metastasis, which is one of the most upregulated TBX family genes in human HCC tissues. TBX19 expression was markedly upregulated in HCC tissues and elevated TBX19 expression predicted poor prognosis. Overexpression of TBX19 enhanced HCC metastasis through upregulating epidermal growth factor receptor (EGFR) and Rac family small GTPase 1 (RAC1) expression. Downregulation of EGFR and RAC1 inhibited TBX19-mediated HCC metastasis, while upregulation of EGFR and RAC1 restored inhibition of HCC metastasis mediated by TBX19 knockdown. Furthermore, epidermal growth factor (EGF)/EGFR signaling upregulated TBX19 expression via the extracellular signal-regulated kinase (ERK)/nuclear factor (NF)-kB axis. Besides, the combined application of EGFR inhibitor Erlotinib and RAC1 inhibitor NSC23766 markedly inhibited TBX19-mediated HCC metastasis. In HCC cohorts, TBX19 expression was positively associated with EGFR and RAC1 expression. Patients with positive coexpression of TBX19/EGFR or TBX19/RAC1 displayed the poorest prognosis. In conclusion, EGF/EGFR signaling upregulated TBX19 expression via ERK/NF-kB pathway and TBX19 fostered HCC metastasis by enhancing EGFR and RAC1 expression, which formed an EGF-TBX19-EGFR positive feedback loop. Targeting this signaling pathway may offer a potential therapeutic strategy to efficiently restrain TBX19-mediated HCC metastasis.
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13
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Shokati Eshkiki Z, Khayer N, Talebi A, Karbalaei R, Akbari A. Novel insight into pancreatic adenocarcinoma pathogenesis using liquid association analysis. BMC Med Genomics 2022; 15:30. [PMID: 35180880 PMCID: PMC8855560 DOI: 10.1186/s12920-022-01174-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 02/01/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is a lethal malignancy associated with a poor prognosis. High-throughput disease-related-gene expression data provide valuable information on gene interaction, which consequently lead to deeper insight about pathogenesis. The co-expression analysis is a common approach that is used to investigate gene interaction. However, such an approach solely is inadequate to reveal the complexity of the gene interaction. The three-way interaction model is known as a novel approach applied to decode the complex relationship between genes. METHODS In the current study, the liquid association method was used to capture the statistically significant triplets involved in the PDAC pathogenesis. Subsequently, gene set enrichment and gene regulatory network analyses were performed to trace the biological relevance of the statistically significant triplets. RESULTS The results of the current study suggest that "response to estradiol" and "Regulation of T-cell proliferation" are two critical biological processes that may be associated with the PDAC pathogenesis. Additionally, we introduced six switch genes, namely Lamc2, Klk1, Nqo1, Aox1, Tspan1, and Cxcl12, which might be involved in PDAC triggering. CONCLUSION In the current study, for the first time, the critical genes and pathways involved in the PDAC pathogenesis were investigated using the three-way interaction approach. As a result, two critical biological processes, as well as six potential biomarkers, were suggested that might be involved in the PDAC triggering. Surprisingly, strong evidence for the biological relevance of our results can be found in the literature.
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Affiliation(s)
- Zahra Shokati Eshkiki
- Alimentary Tract Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nasibeh Khayer
- Skull Base Research Center, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran.
| | - Atefeh Talebi
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Karbalaei
- Department of Psychology and Neuroscience Program, Temple University, Philadelphia, PA, USA
| | - Abolfazl Akbari
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
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14
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Mäkitie RE, Toiviainen-Salo S, Kaitila I, Mäkitie O. A Novel Osteochondrodysplasia With Empty Sella Associates With a TBX2 Variant. Front Endocrinol (Lausanne) 2022; 13:845889. [PMID: 35311234 PMCID: PMC8927981 DOI: 10.3389/fendo.2022.845889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Skeletal dysplasias comprise a heterogenous group of developmental disorders of skeletal and cartilaginous tissues. Several different forms have been described and the full spectrum of their clinical manifestations and underlying genetic causes are still incompletely understood. We report a three-generation Finnish family with an unusual, autosomal dominant form of osteochondrodysplasia and an empty sella. Affected individuals (age range 24-44 years) exhibit unusual codfish-shaped vertebrae, severe early-onset and debilitating osteoarthritis and an empty sella without endocrine abnormalities. Clinical characteristics also include mild dysmorphic features, reduced sitting height ratio, and obesity. Whole-exome sequencing excluded known skeletal dysplasias and identified a novel heterozygous missense mutation c.899C>T (p.Thr300Met) in TBX2, confirmed by Sanger sequencing. TBX2 is important for development of the skeleton and the brain and three prior reports have described variations in TBX2 in patients portraying a complex phenotype with vertebral anomalies, craniofacial dysmorphism and endocrine dysfunctions. Our mutation lies near a previously reported disease-causing variant and is predicted pathogenic with deleterious effects on protein function. Our findings expand the current spectrum of skeletal dysplasias, support the association of TBX2 mutations with skeletal dysplasia and suggest a role for TBX2 in development of the spinal and craniofacial structures and the pituitary gland.
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Affiliation(s)
- Riikka E. Mäkitie
- Folkhälsan Institute of Genetics, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Otorhinolaryngology–Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- *Correspondence: Riikka E. Mäkitie,
| | - Sanna Toiviainen-Salo
- Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Medical Imaging Center, Pediatric Radiology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ilkka Kaitila
- Department of Medical Genetics, University of Helsinki, Helsinki, Finland
- Department of Clinical Genetics, Helsinki University Hospital, Helsinki, Finland
| | - Outi Mäkitie
- Folkhälsan Institute of Genetics, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Children’s Hospital, Pediatric Research Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
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15
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Lu S, Louphrasitthiphol P, Goradia N, Lambert JP, Schmidt J, Chauhan J, Rughani MG, Larue L, Wilmanns M, Goding CR. TBX2 controls a proproliferative gene expression program in melanoma. Genes Dev 2021; 35:1657-1677. [PMID: 34819350 PMCID: PMC8653791 DOI: 10.1101/gad.348746.121] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 10/22/2021] [Indexed: 12/20/2022]
Abstract
Senescence shapes embryonic development, plays a key role in aging, and is a critical barrier to cancer initiation, yet how senescence is regulated remains incompletely understood. TBX2 is an antisenescence T-box family transcription repressor implicated in embryonic development and cancer. However, the repertoire of TBX2 target genes, its cooperating partners, and how TBX2 promotes proliferation and senescence bypass are poorly understood. Here, using melanoma as a model, we show that TBX2 lies downstream from PI3K signaling and that TBX2 binds and is required for expression of E2F1, a key antisenescence cell cycle regulator. Remarkably, TBX2 binding in vivo is associated with CACGTG E-boxes, present in genes down-regulated by TBX2 depletion, more frequently than the consensus T-element DNA binding motif that is restricted to Tbx2 repressed genes. TBX2 is revealed to interact with a wide range of transcription factors and cofactors, including key components of the BCOR/PRC1.1 complex that are recruited by TBX2 to the E2F1 locus. Our results provide key insights into how PI3K signaling modulates TBX2 function in cancer to drive proliferation.
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Affiliation(s)
- Sizhu Lu
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX3 7DQ, United Kingdom
| | - Pakavarin Louphrasitthiphol
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX3 7DQ, United Kingdom.,Department of Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Nishit Goradia
- European Molecular Biology Laboratory, Hamburg Unit, 22607 Hamburg, Germany
| | - Jean-Philippe Lambert
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5G 1X5, Canada.,Department of Molecular Medicine and Cancer Research Centre, Université Laval, Québec City, Québec G1R 3S3, Canada; CHU de Québec Research Center, Centre Hospitalier de l'Université Laval, Québec City, Québec G1V 4G2, Canada
| | - Johannes Schmidt
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX3 7DQ, United Kingdom
| | - Jagat Chauhan
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX3 7DQ, United Kingdom
| | - Milap G Rughani
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX3 7DQ, United Kingdom
| | - Lionel Larue
- Institut Curie, PSL Research University, U1021, Institut National de la Santé et de la Recherche Médicale, Normal and Pathological Development of Melanocytes, 91405 Orsay Cedex, France.,Université Paris-Sud, Université Paris-Saclay, UMR 3347 Centre National de la Recherche Scientifique, 91405 Orsay Cedex, France.,Equipe Labellisée Ligue Contre le Cancer, 91405 Orsay Cedex, France
| | - Matthias Wilmanns
- European Molecular Biology Laboratory, Hamburg Unit, 22607 Hamburg, Germany.,University Hamburg Clinical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Colin R Goding
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford OX3 7DQ, United Kingdom
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16
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TBX2 Drives Neuroendocrine Prostate Cancer through Exosome-Mediated Repression of miR-200c-3p. Cancers (Basel) 2021; 13:cancers13195020. [PMID: 34638504 PMCID: PMC8507954 DOI: 10.3390/cancers13195020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/20/2021] [Accepted: 09/29/2021] [Indexed: 01/12/2023] Open
Abstract
Simple Summary An estimated ~25–30% of patients with advanced prostate cancer (PCa) develop the aggressive and lethal form of the disease known as treatment-induced neuroendocrine prostate cancer (t-NEPC). Owing to lack of treatment options, the identification of the underlying molecular mechanisms that propagate the t-NEPC phenotype is critical towards developing novel therapeutic strategies against advanced PCa. Further, the roles of extracellular vesicles (exosomes) and microRNAs—an increasingly recognized and key mode of propagation of the NEPC phenotype—remain elusive. Our studies reveal that TBX2 promotes SOX2- and N-MYC- driven t-NEPC through regulation of the intermediary factor—miR-200c-3p; and that TBX2/miR-200c-3p/SOX2/MYCN signaling can promote t-NEPC via both intracellular and exosome-mediated intercellular mechanisms. Abstract Deciphering the mechanisms that drive transdifferentiation to neuroendocrine prostate cancer (NEPC) is crucial to identifying novel therapeutic strategies against this lethal and aggressive subtype of advanced prostate cancer (PCa). Further, the role played by exosomal microRNAs (miRs) in mediating signaling mechanisms that propagate the NEPC phenotype remains largely elusive. The unbiased differential miR expression profiling of human PCa cells genetically modulated for TBX2 expression led to the identification of miR-200c-3p. Our findings have unraveled the TBX2/miR-200c-3p/SOX2/N-MYC signaling axis in NEPC transdifferentiation. Mechanistically, we found that: (1) TBX2 binds to the promoter and represses the expression of miR-200c-3p, a miR reported to be lost in castrate resistant prostate cancer (CRPC), and (2) the repression of miR-200c-3p results in the increased expression of its targets SOX2 and N-MYC. In addition, the rescue of mir-200c-3p in the context of TBX2 blockade revealed that miR-200c-3p is the critical intermediary effector in TBX2 regulation of SOX2 and N-MYC. Further, our studies show that in addition to the intracellular mode, TBX2/miR-200c-3p/SOX2/N-MYC signaling can promote NEPC transdifferentiation via exosome-mediated intercellular mechanism, an increasingly recognized and key mode of propagation of the NEPC phenotype.
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17
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Inoue Y, Fukuda T, Nanno S, Awazu Y, Shimomura M, Matsubara H, Yamauchi M, Yasui T, Sumi T. T-box 2 expression is a useful indicator of the response to neoadjuvant chemotherapy for patients with locally advanced uterine cervical squamous cell carcinoma. Oncol Lett 2021; 22:755. [PMID: 34539859 PMCID: PMC8436333 DOI: 10.3892/ol.2021.13016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 08/06/2021] [Indexed: 11/21/2022] Open
Abstract
Platinum-based concurrent chemoradiotherapy is the standard treatment for patients with locally advanced uterine cervical squamous cell carcinoma. Reducing the tumor size by administering neoadjuvant chemotherapy (NAC) is beneficial for successful hysterectomy, resulting in a more favorable prognosis. Therefore, identifying biomarkers that predict the effectiveness of NAC in patients with cervical squamous cell carcinoma remains a priority. Cancer cells widely express T-box 2 (TBX2), which contributes to the resistance to DNA-damaging chemotherapeutic agents. The present study aimed to determine the association between TBX2 protein expression in tumor tissues and the efficacy of NAC in locally advanced uterine cervical squamous cell carcinoma using immunohistochemistry. Data from 46 patients with locally advanced uterine cervical squamous cell carcinoma were classified into two groups based on their effective or ineffective response to NAC treatment. In addition, the effect of small interfering RNA-mediated knockdown of TBX2 on the sensitivity of cervical cancer cells to cisplatin was investigated in vitro. The results revealed that there were no significant differences in patient clinicopathological features between the NAC effective and NAC ineffective groups. The overall survival of the NAC effective group was significantly improved compared with the NAC ineffective group (P=0.007). Tumors from the NAC effective group also had significantly downregulated TBX2 expression levels compared with those from the NAC ineffective group (P=0.0138). Of note, decreased TBX2 expression was indicated to be significantly associated with higher sensitivity to NAC (P=0.009). The low TBX2 expression group had a more favorable overall survival compared with the high TBX2 expression group (P=0.049). Furthermore, knockdown of TBX2 expression significantly increased cancer cell sensitivity to cisplatin in vitro. In conclusion, the results of the present study suggested that TBX2 expression may be a useful predictor of the response to NAC in patients with locally advanced uterine cervical squamous cell carcinoma.
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Affiliation(s)
- Yuta Inoue
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Takeshi Fukuda
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Shigenori Nanno
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Yuichiro Awazu
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Masahiro Shimomura
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Hiroaki Matsubara
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Makoto Yamauchi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Tomoyo Yasui
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Toshiyuki Sumi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
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18
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Al Kafri N, Hafizi S. Identification of signalling pathways activated by Tyro3 that promote cell survival, proliferation and invasiveness in human cancer cells. Biochem Biophys Rep 2021; 28:101111. [PMID: 34471705 PMCID: PMC8387907 DOI: 10.1016/j.bbrep.2021.101111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 11/29/2022] Open
Abstract
Tyro3 is a member of the TAM subfamily of receptor tyrosine kinases alongside Axl and MerTK, which are activated by homologous ligands Gas6 and protein S. The TAMs activate signalling pathways that mediate diverse functions including cell survival, proliferation, phagocytosis and immune regulation, and defects in TAM-dependent processes are associated with the development of human autoimmune diseases and numerous cancers. In this study, we have focused on the signalling and functional roles of Tyro3, about which much remains unknown. For this purpose, we used cultured human cancer cell lines with different levels of TAM expression to reveal the relative significance of Tyro3 amongst the TAMs. Knockdown of Tyro3 expression by siRNA in MGH-U3 cells, which express Tyro3 as sole TAM, caused a reduction in cell viability, which could not be rescued by TAM ligand, demonstrating the dependence of these cells solely on Tyro3. In contrast, the reduced viability of SCC-25 cells upon Tyro3 knockdown could be rescued by Gas6 as these cells express both Tyro3 and Axl and hence Axl expression was preserved. An increase in the fraction of Tyro3 knockdown cells in the early apoptotic phase was observed in four different cell lines each with a different TAM expression profile, revealing a broad anti-apoptotic function of Tyro3. Furthermore, in the Tyro3-dependent cells, Tyro3 depletion caused a significant increase in cells in the G0/G1 phase of the cell cycle concomitant with decreases in the G2/M and S phases. In addition, a cancer pathway gene discovery array revealed distinct sets of genes that were altered in expression in cancer cells upon Tyro3 knockdown. Together, these results have elucidated further a role of Tyro3 in promoting multiple tumour-supporting pathways in human cancer cells, which differs in extent depending on the presence of other TAMs in the same cells. Knockdown of Tyro3 expression in human cancer cells reduced cell viability. Reduced viability by Tyro3 knockdown can be rescued by Gas6 in cells also expressing Axl. Tyro3 knockdown increased the fraction of cancer cells undergoing early apoptosis. Tyro3 depletion shifted cells from G2/M and S phases of the cell cycle to G0/G1 phase. Ligand-independent Tyro3 regulates cancer-related gene sets to promote tumorigenesis.
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Affiliation(s)
- Nour Al Kafri
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
| | - Sassan Hafizi
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
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Yu X, Xu J. A 'Goldmine' for digging cancer-specific targets: the genes essential for embryo development but non-essential for adult life. J Mol Cell Biol 2021; 12:669-673. [PMID: 32470104 PMCID: PMC7749735 DOI: 10.1093/jmcb/mjaa024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 05/12/2020] [Accepted: 05/25/2020] [Indexed: 12/12/2022] Open
Affiliation(s)
- Xiaobin Yu
- Department of Molecular and Cellular Biology, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jianming Xu
- Department of Molecular and Cellular Biology, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
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20
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Fernando F, Veenboer GJ, Oudijk MA, Kampman MA, Heida KY, Lagendijk LJ, van der Post JA, Jongejan A, Afink GB, Ris-Stalpers C. TBX2, a Novel Regulator of Labour. ACTA ACUST UNITED AC 2021; 57:medicina57060515. [PMID: 34064060 PMCID: PMC8224059 DOI: 10.3390/medicina57060515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022]
Abstract
Background and Objectives: Therapeutic interventions targeting molecular factors involved in the transition from uterine quiescence to overt labour are not substantially reducing the rate of spontaneous preterm labour. The identification of novel rational therapeutic targets are essential to prevent the most common cause of neonatal mortality. Based on our previous work showing that Tbx2 (T-Box transcription factor 2) is a putative upstream regulator preceding progesterone withdrawal in mouse myometrium, we now investigate the role of TBX2 in human myometrium. Materials and Methods: RNA microarray analysis of (A) preterm human myometrium samples and (B) myometrial cells overexpressing TBX2 in vitro, combined with subsequent analysis of the two publicly available datasets of (C) Chan et al. and (D) Sharp et al. The effect of TBX2 overexpression on cytokines/chemokines secreted to the myometrium cell culture medium were determined by Luminex assay. Results: Analysis shows that overexpression of TBX2 in myometrial cells results in downregulation of TNFα- and interferon signalling. This downregulation is consistent with the decreased expression of cytokines and chemokines of which a subset has been previously associated with the inflammatory pathways relevant for human labour. In contrast, CXCL5 (C-X-C motif chemokine ligand 5), CCL21 and IL-6 (Interleukin 6), previously reported in relation to parturition, do not seem to be under TBX2 control. The combined bioinformatical analysis of the four mRNA datasets identifies a subset of upstream regulators common to both preterm and term labour under control of TBX2. Surprisingly, TBX2 mRNA levels are increased in preterm contractile myometrium. Conclusions: We identified a subset of upstream regulators common to both preterm and term labour that are activated in labour and repressed by TBX2. The increased TBX2 mRNA expression in myometrium collected during a preterm caesarean section while in spontaneous preterm labour compared to tissue harvested during iatrogenic preterm delivery does not fit the bioinformatical model. We can only explain this by speculating that the in vivo activity of TBX2 in human myometrium depends not only on the TBX2 expression levels but also on levels of the accessory proteins necessary for TBX2 activity.
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Affiliation(s)
- Febilla Fernando
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Geertruda J.M. Veenboer
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Martijn A. Oudijk
- Department of Obstetrics and Gynaecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.A.O.); (J.A.M.v.d.P.)
| | - Marlies A.M. Kampman
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands;
| | - Karst Y. Heida
- Department of Obstetrics, Division of Woman and Baby, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;
| | - Louise J.M. Lagendijk
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Joris A.M. van der Post
- Department of Obstetrics and Gynaecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.A.O.); (J.A.M.v.d.P.)
| | - Aldo Jongejan
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
| | - Gijs B. Afink
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
| | - Carrie Ris-Stalpers
- Reproductive Biology Laboratory, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (F.F.); (G.J.M.V.); (L.J.M.L.); (G.B.A.)
- Department of Obstetrics and Gynaecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (M.A.O.); (J.A.M.v.d.P.)
- Correspondence: ; Tel.: +312-0566-5625
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21
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Lüdtke TH, Wojahn I, Kleppa MJ, Schierstaedt J, Christoffels VM, Künzler P, Kispert A. Combined genomic and proteomic approaches reveal DNA binding sites and interaction partners of TBX2 in the developing lung. Respir Res 2021; 22:85. [PMID: 33731112 PMCID: PMC7968368 DOI: 10.1186/s12931-021-01679-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/07/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Tbx2 encodes a transcriptional repressor implicated in the development of numerous organs in mouse. During lung development TBX2 maintains the proliferation of mesenchymal progenitors, and hence, epithelial proliferation and branching morphogenesis. The pro-proliferative function was traced to direct repression of the cell-cycle inhibitor genes Cdkn1a and Cdkn1b, as well as of genes encoding WNT antagonists, Frzb and Shisa3, to increase pro-proliferative WNT signaling. Despite these important molecular insights, we still lack knowledge of the DNA occupancy of TBX2 in the genome, and of the protein interaction partners involved in transcriptional repression of target genes. METHODS We used chromatin immunoprecipitation (ChIP)-sequencing and expression analyses to identify genomic DNA-binding sites and transcription units directly regulated by TBX2 in the developing lung. Moreover, we purified TBX2 containing protein complexes from embryonic lung tissue and identified potential interaction partners by subsequent liquid chromatography/mass spectrometry. The interaction with candidate proteins was validated by immunofluorescence, proximity ligation and individual co-immunoprecipitation analyses. RESULTS We identified Il33 and Ccn4 as additional direct target genes of TBX2 in the pulmonary mesenchyme. Analyzing TBX2 occupancy data unveiled the enrichment of five consensus sequences, three of which match T-box binding elements. The remaining two correspond to a high mobility group (HMG)-box and a homeobox consensus sequence motif. We found and validated binding of TBX2 to the HMG-box transcription factor HMGB2 and the homeobox transcription factor PBX1, to the heterochromatin protein CBX3, and to various members of the nucleosome remodeling and deacetylase (NuRD) chromatin remodeling complex including HDAC1, HDAC2 and CHD4. CONCLUSION Our data suggest that TBX2 interacts with homeobox and HMG-box transcription factors as well as with the NuRD chromatin remodeling complex to repress transcription of anti-proliferative genes in the pulmonary mesenchyme.
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Affiliation(s)
- Timo H Lüdtke
- Institut Für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Irina Wojahn
- Institut Für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Marc-Jens Kleppa
- Institut Für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Jasper Schierstaedt
- Institut Für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany
- Plant-Microbe Systems, Leibniz Institute of Vegetable and Ornamental Crops, Großbeeren, Germany
| | - Vincent M Christoffels
- Department of Anatomy, Embryology and Physiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Patrick Künzler
- Institut Für Pflanzengenetik, Leibniz Universität Hannover, Hannover, Germany
| | - Andreas Kispert
- Institut Für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany.
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22
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Fan WM, Luo D, Zhang JZ, Wang D, Shen J. Vestigial suppresses apoptosis and cell migration in a manner dependent on the level of JNK-Caspase signaling in the Drosophila wing disc. INSECT SCIENCE 2021; 28:63-76. [PMID: 32037698 DOI: 10.1111/1744-7917.12762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/02/2020] [Accepted: 01/24/2020] [Indexed: 06/10/2023]
Abstract
The Decapentaplegic (Dpp) and Wingless (Wg) signal pathways play important roles in numerous biological processes in Drosophila. The Drosophila vestigial (vg) gene is selectively required for wing imaginal disc cell proliferation, which is essential for the formation of the adult wing and halter structures, and is regulated by Dpp and Wg signaling. Using a Drosophila invasion model of wing epithelium, we showed herein that inhibition of Dpp or Wg signaling promoted cells to migrate across the cell lineage restrictive anterior/posterior (A/P) compartment boundary. Being downstream of both Dpp and Wg signaling, vg can block cell migration induced by loss of either pathway. In addition, suppression of vg is sufficient to induce cell migration across the A/P boundary. Transcriptomic analysis revealed potential downstream genes involved in the cell migration after suppressing vg in the wing disc. We further demonstrated that the c-Jun N-terminal kinase (JNK) signaling promoted cell migration induced by vg suppression by upregulating Caspase activity. Taken together, our results revealed the requirement of Vg for suppressing cell migration and clarified how developmental signals collaborate to stabilize cells along the compartment boundary.
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Affiliation(s)
- Wen-Min Fan
- Department of Entomology and MOA Lab for Pest Monitoring and Green Control, China Agricultural University, Beijing, China
| | - Dan Luo
- Department of Entomology and MOA Lab for Pest Monitoring and Green Control, China Agricultural University, Beijing, China
| | - Jun-Zheng Zhang
- Department of Entomology and MOA Lab for Pest Monitoring and Green Control, China Agricultural University, Beijing, China
| | - Dan Wang
- Department of Entomology and MOA Lab for Pest Monitoring and Green Control, China Agricultural University, Beijing, China
| | - Jie Shen
- Department of Entomology and MOA Lab for Pest Monitoring and Green Control, China Agricultural University, Beijing, China
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23
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Seya D, Ihara D, Shirai M, Kawamura T, Watanabe Y, Nakagawa O. A role of Hey2 transcription factor for right ventricle development through regulation of Tbx2-Mycn pathway during cardiac morphogenesis. Dev Growth Differ 2021; 63:82-92. [PMID: 33410138 DOI: 10.1111/dgd.12707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/29/2020] [Accepted: 12/19/2020] [Indexed: 01/01/2023]
Abstract
A basic helix-loop-helix transcription factor Hey2 is expressed in the ventricular myocardium and endocardium of mouse embryos, and Hey2 null mice die perinatally showing ventricular septal defect, dysplastic tricuspid valve and hypoplastic right ventricle. In order to understand region-specific roles of Hey2 during cardiac morphogenesis, we generated Hey2 conditional knockout (cKO) mice using Mef2c-AHF-Cre, which was active in the anterior part of the second heart field and the right ventricle and outflow tract of the heart. Hey2 cKO neonates reproduced three anomalies commonly observed in Hey2 null mice. An earliest morphological defect was the lack of right ventricular extension along the apico-basal axis at midgestational stages. Underdevelopment of the right ventricle was present in all cKO neonates including those without apparent atresia of right-sided atrioventricular connection. RNA sequencing analysis of cKO embryos identified that the gene expression of a non-chamber T-box factor Tbx2 was ectopically induced in the chamber myocardium of the right ventricle. Consistently, mRNA expression of the Mycn transcription factor, which was a cell cycle regulator transcriptionally repressed by Tbx2, was down regulated, and the number of S-phase cells was significantly decreased in the right ventricle of cKO heart. These results suggest that Hey2 plays an important role in right ventricle development during cardiac morphogenesis, at least in part, through mitigating Tbx2-dependent inhibition of Mycn expression.
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Affiliation(s)
- Daiki Seya
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan.,Department of Cell Physiology, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Dai Ihara
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan.,Laboratory of Stem Cell & Regenerative Medicine, Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Manabu Shirai
- Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Teruhisa Kawamura
- Laboratory of Stem Cell & Regenerative Medicine, Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Yusuke Watanabe
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Osamu Nakagawa
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
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24
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Sandkam BA, Campello L, O’Brien C, Nandamuri SP, Gammerdinger WJ, Conte MA, Swaroop A, Carleton KL. Tbx2a Modulates Switching of RH2 and LWS Opsin Gene Expression. Mol Biol Evol 2020; 37:2002-2014. [PMID: 32191319 PMCID: PMC7849988 DOI: 10.1093/molbev/msaa062] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Sensory systems are tuned by selection to maximize organismal fitness in particular environments. This tuning has implications for intraspecies communication, the maintenance of species boundaries, and speciation. Tuning of color vision largely depends on the sequence of the expressed opsin proteins. To improve tuning of visual sensitivities to shifts in habitat or foraging ecology over the course of development, many organisms change which opsins are expressed. Changes in this developmental sequence (heterochronic shifts) can create differences in visual sensitivity among closely related species. The genetic mechanisms by which these developmental shifts occur are poorly understood. Here, we use quantitative trait locus analyses, genome sequencing, and gene expression studies in African cichlid fishes to identify a role for the transcription factor Tbx2a in driving a switch between long wavelength sensitive (LWS) and Rhodopsin-like (RH2) opsin expression. We identify binding sites for Tbx2a in the LWS promoter and the highly conserved locus control region of RH2 which concurrently promote LWS expression while repressing RH2 expression. We also present evidence that a single change in Tbx2a regulatory sequence has led to a species difference in visual tuning, providing the first mechanistic model for the evolution of rapid switches in sensory tuning. This difference in visual tuning likely has important roles in evolution as it corresponds to differences in diet, microhabitat choice, and male nuptial coloration.
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Affiliation(s)
| | - Laura Campello
- Neurobiology, Neurodegeneration & Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Conor O’Brien
- Department of Biology, University of Maryland, College Park, MD
| | | | | | - Matthew A Conte
- Department of Biology, University of Maryland, College Park, MD
| | - Anand Swaroop
- Neurobiology, Neurodegeneration & Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD
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25
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Tawfik D, Zaccagnino A, Bernt A, Szczepanowski M, Klapper W, Schwab A, Kalthoff H, Trauzold A. The A818-6 system as an in-vitro model for studying the role of the transportome in pancreatic cancer. BMC Cancer 2020; 20:264. [PMID: 32228510 PMCID: PMC7106758 DOI: 10.1186/s12885-020-06773-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 03/23/2020] [Indexed: 02/08/2023] Open
Abstract
Background The human pancreatic cancer cell line A818–6 can be grown in vitro either as a highly malignant, undifferentiated monolayer (ML) or as three-dimensional (3D) single layer hollow spheres (HS) simulating a benign, highly differentiated, duct-like pancreatic epithelial structure. This characteristic allowing A818–6 cells to switch from one phenotype to another makes these cells a unique system to characterize the cellular and molecular modifications during differentiation on one hand and malignant transformation on the other hand. Ion channels and transport proteins (transportome) have been implicated in malignant transformation. Therefore, the current study aimed to analyse the transportome gene expression profile in the A818–6 cells growing as a monolayer or as hollow spheres. Methods & Results The study identified the differentially expressed transportome genes in both cellular states of A818–6 using Agilent and Nanostring arrays and some targets were validated via immunoblotting. Additionally, these results were compared to a tissue Affymetrix microarray analysis of pancreatic adenocarcinoma patients’ tissues. The overall transcriptional profile of the ML and HS cells confirmed the formerly described mesenchymal features of ML and epithelial nature of HS which was further verified via high expression of E-cadherin and low expression of vimentin found in HS in comparison to ML. Among the predicted features between HS and ML was the involvement of miRNA-9 in this switch. Importantly, the bioinformatics analysis also revealed substantial number (n = 126) of altered transportome genes. Interestingly, three genes upregulated in PDAC tissue samples (GJB2, GJB5 and SLC38A6) were found to be also upregulated in ML and 3 down-regulated transportome genes (KCNQ1, TRPV6 and SLC4A) were also reduced in ML. Conclusion This reversible HS/ML in vitro system might help in understanding the pathophysiological impact of the transportome in the dedifferentiation process in pancreatic carcinogenesis. Furthermore, the HS/ML model represents a novel system for studying the role of the transportome during the switch from a more benign, differentiated (HS) to a highly malignant, undifferentiated (ML) phenotype.
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Affiliation(s)
- Doaa Tawfik
- Institute for Experimental Cancer Research, Christian-Albrechts-University of Kiel, Arnold-Heller Str. 3, 24105, Kiel, Germany
| | - Angela Zaccagnino
- Institute for Experimental Cancer Research, Christian-Albrechts-University of Kiel, Arnold-Heller Str. 3, 24105, Kiel, Germany
| | - Alexander Bernt
- Institute for Experimental Cancer Research, Christian-Albrechts-University of Kiel, Arnold-Heller Str. 3, 24105, Kiel, Germany
| | - Monika Szczepanowski
- Clinic for Internal Medicine II, Christian-Albrechts-University of Kiel, UKSH, Kiel, Germany
| | - Wolfram Klapper
- Institute of Pathology, Hematopathology Section and Lymph Node Registry, Christian-Albrechts-University of Kiel, UKSH, Kiel, Germany
| | - Albrecht Schwab
- Institute of Physiology II, Westfälische Wilhelms-Universität, Münster, Germany
| | - Holger Kalthoff
- Institute for Experimental Cancer Research, Christian-Albrechts-University of Kiel, Arnold-Heller Str. 3, 24105, Kiel, Germany
| | - Anna Trauzold
- Institute for Experimental Cancer Research, Christian-Albrechts-University of Kiel, Arnold-Heller Str. 3, 24105, Kiel, Germany.
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26
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Perrard J, Morel A, Meznad K, Paget-Bailly P, Dalstein V, Guenat D, Mourareau C, Clavel C, Fauconnet S, Baguet A, Mougin C, Pretet JL. DNA demethylation agent 5azadC downregulates HPV16 E6 expression in cervical cancer cell lines independently of TBX2 expression. Oncol Lett 2019; 19:1074-1081. [PMID: 31897221 DOI: 10.3892/ol.2019.11158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/09/2019] [Indexed: 12/18/2022] Open
Abstract
HPV16 is the most carcinogenic human papillomavirus and causes >50% of cervical cancers, the majority of anal cancers and 30% of oropharyngeal squamous cell carcinomas. HPV carcinogenesis relies on the continuous expression of the two main viral oncoproteins E6 and E7 that target >150 cellular proteins. Among them, epigenetic modifiers, including DNA Methyl Transferases (DNMT), are dysregulated, promoting an aberrant methylation pattern in HPV-positive cancer cells. It has been previously reported that the treatment of HPV-positive cervical cancer cells with DNMT inhibitor 5-aza-2'-deoxycytidine (5azadC) caused the downregulation of E6 expression due to mRNA destabilization that was mediated by miR-375. Recently, the T-box transcription factor 2 (TBX2) has been demonstrated to repress HPV LCR activity. In the current study, the role of TBX2 in E6 repression was investigated in HPV16 cervical cancer cell lines following 5azadC treatment. A decrease of E6 expression was accompanied by p53 and p21 restoration. While TBX2 mRNA was upregulated in 5azadC-treated SiHa and Ca Ski cells, TBX2 protein was not detectable. Furthermore, the overexpression of TBX2 protein in cervical cancer cells did not allow the repression of E6 expression. The TBX2 transcription factor is therefore unlikely to be associated with the repression of E6 following 5azadC treatment of SiHa and Ca Ski cells.
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Affiliation(s)
- Jerome Perrard
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France
| | - Adrien Morel
- Center For Research in Genetics and Genomics-CIGGUR, GENIUROS Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá 112041, Colombia
| | - Koceila Meznad
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France
| | - Philippe Paget-Bailly
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France
| | - Veronique Dalstein
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche-S 1250 Pathologies Pulmonaires et Plasticité Cellulaire, Université de Reims Champagne-Ardenne, Faculté de Médecine, 51000 Reims, France.,Centre Hospitalier Universitaire Reims, Laboratoire Biopathologie, 51000 Reims, France
| | - David Guenat
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France.,Centre National de Référence Papillomavirus, CHU Besançon, Boulevard Alexandre Fleming, 25000 Besançon, France
| | - Celine Mourareau
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche-S 1250 Pathologies Pulmonaires et Plasticité Cellulaire, Université de Reims Champagne-Ardenne, Faculté de Médecine, 51000 Reims, France.,Centre Hospitalier Universitaire Reims, Laboratoire Biopathologie, 51000 Reims, France
| | - Christine Clavel
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche-S 1250 Pathologies Pulmonaires et Plasticité Cellulaire, Université de Reims Champagne-Ardenne, Faculté de Médecine, 51000 Reims, France.,Centre Hospitalier Universitaire Reims, Laboratoire Biopathologie, 51000 Reims, France
| | - Sylvie Fauconnet
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France
| | - Aurelie Baguet
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France
| | - Christiane Mougin
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France.,Centre National de Référence Papillomavirus, CHU Besançon, Boulevard Alexandre Fleming, 25000 Besançon, France
| | - Jean-Luc Pretet
- Équipe d'Accueil 3181, University of Bourgogne Franche-Comté, Laboratoire d'Excellence Lipoprotéines et Santé, Prévention et Traitement des Maladies Inflammatoires et du Cancer, 25000 Besançon, France.,Centre National de Référence Papillomavirus, CHU Besançon, Boulevard Alexandre Fleming, 25000 Besançon, France
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Mollazadeh S, Fazly Bazzaz BS, Neshati V, de Vries AAF, Naderi-Meshkin H, Mojarad M, Neshati Z, Kerachian MA. T- Box20 inhibits osteogenic differentiation in adipose-derived human mesenchymal stem cells: the role of T- Box20 on osteogenesis. ACTA ACUST UNITED AC 2019; 26:8. [PMID: 31548928 PMCID: PMC6751895 DOI: 10.1186/s40709-019-0099-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 08/29/2019] [Indexed: 12/12/2022]
Abstract
Background Skeletal development and its cellular function are regulated by various transcription factors. The T-box (Tbx) family of transcription factors have critical roles in cellular differentiation as well as heart and limbs organogenesis. These factors possess activator and/or repressor domains to modify the expression of target genes. Despite the obvious effects of Tbx20 on heart development, its impact on bone development is still unknown. Methods To investigate the consequence by forced Tbx20 expression in the osteogenic differentiation of human mesenchymal stem cells derived from adipose tissue (Ad-MSCs), these cells were transduced with a bicistronic lentiviral vector encoding Tbx20 and an enhanced green fluorescent protein. Results Tbx20 gene delivery system suppressed the osteogenic differentiation of Ad-MSCs, as indicated by reduction in alkaline phosphatase activity and Alizarin Red S staining. Consistently, reverse transcription-polymerase chain reaction analyses showed that Tbx20 gain-of-function reduced the expression levels of osteoblast marker genes in osteo-inductive Ad-MSCs cultures. Accordingly, Tbx20 negatively affected osteogenesis through modulating expression of key factors involved in this process. Conclusion The present study suggests that Tbx20 could inhibit osteogenic differentiation in adipose-derived human mesenchymal stem cells.
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Affiliation(s)
- Samaneh Mollazadeh
- 1Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran.,2Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Sedigheh Fazly Bazzaz
- 2Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,3Department of Food and Drug Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,4School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vajiheh Neshati
- 2Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Antoine A F de Vries
- 5Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Hojjat Naderi-Meshkin
- 6Stem Cell and Regenerative Medicine Research Group, Academic Center for Education, Culture Research (ACECR), Khorasan Razavi Branch, Mashhad, Iran
| | - Majid Mojarad
- 7Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,8Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zeinab Neshati
- 9Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Amin Kerachian
- 7Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,8Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Crawford NT, McIntyre AJ, McCormick A, D'Costa ZC, Buckley NE, Mullan PB. TBX2 interacts with heterochromatin protein 1 to recruit a novel repression complex to EGR1-targeted promoters to drive the proliferation of breast cancer cells. Oncogene 2019; 38:5971-5986. [PMID: 31253870 DOI: 10.1038/s41388-019-0853-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 04/12/2019] [Accepted: 04/14/2019] [Indexed: 11/09/2022]
Abstract
Early Growth Response 1 (EGR1) is a stress response transcription factor with multiple tumour suppressor roles in breast tissue, whose expression is often lost in breast cancers. We have previously shown that the breast cancer oncogene TBX2 (T-BOX2) interacts with EGR1 to co-repress EGR1-target genes including the breast tumour suppressor NDRG1. Here, we show the mechanistic basis of this TBX2 repression complex. We show that siRNA knockdown of TBX2, EGR1, Heterochromatin Protein 1 (HP1) isoforms and the generic HP1-associated corepressor protein KAP1 all resulted in growth inhibition of TBX2-expressing breast cancer cells. We show that TBX2 interacts with HP1 through a conserved HP1-binding motif in its N-terminus, which in turn leads to the recruitment of KAP1 and other associated proteins. Mutation of the TBX2 HP1 binding domain abrogates the TBX2-HP1 interaction and loss of repression of target genes such as NDRG1. Chromatin-immunoprecipitation (ChIP) assays showed that TBX2 establishes a repressive chromatin mark, specifically H3K9me3, around the NDRG1 proximal promoter coincident with the recruitment of the DNA methyltransferase DNMT3B and histone methyltransferase (HMT) complex components (G9A, Enhancer of Zeste 2 (EZH2) and Suppressor of Zeste 12 (SUZ12)). Knockdown of G9A, EZH2 or SUZ12 resulted in upregulation of TBX2/EGR1 co-regulated targets accompanied by a dramatic inhibition of cell proliferation. We show that a generic inhibitor of HMT activity, DzNep, phenocopies expression of an inducible dominant negative TBX2. Knockdown of TBX2, KAP1 or HP1 inhibited NDRG1 promoter decoration specifically with the H3K9me3 repression mark. Correspondingly, treatment with a G9A inhibitor effectively reversed TBX2 repression of NDRG1 and synergistically downregulated cell proliferation following TBX2 functional inhibition. These data demonstrate that TBX2 promotes suppression of normal growth control mechanisms through recruitment of a large repression complex to EGR1-responsive promoters leading to the uncontrolled proliferation of breast cancer cells.
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Affiliation(s)
- N T Crawford
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - A J McIntyre
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - A McCormick
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - Z C D'Costa
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - N E Buckley
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - P B Mullan
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7BL, UK.
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29
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Cox B, Tsamou M, Vrijens K, Neven KY, Winckelmans E, de Kok TM, Plusquin M, Nawrot TS. A Co-expression Analysis of the Placental Transcriptome in Association With Maternal Pre-pregnancy BMI and Newborn Birth Weight. Front Genet 2019; 10:354. [PMID: 31110514 PMCID: PMC6501552 DOI: 10.3389/fgene.2019.00354] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 04/02/2019] [Indexed: 12/15/2022] Open
Abstract
Maternal body mass index (BMI) before pregnancy is known to affect both fetal growth and later-life health of the newborn, yet the implicated molecular mechanisms remain largely unknown. As the master regulator of the fetal environment, the placenta is a valuable resource for the investigation of processes involved in the developmental programming of metabolic health. We conducted a genome-wide placental transcriptome study aiming at the identification of functional pathways representing the molecular link between maternal BMI and fetal growth. We used RNA microarray (Agilent 8 × 60 K), medical records, and questionnaire data from 183 mother-newborn pairs from the ENVIRONAGE birth cohort study (Flanders, Belgium). Using a weighted gene co-expression network analysis, we identified 17 correlated gene modules. Three of these modules were associated with both maternal pre-pregnancy BMI and newborn birth weight. A gene cluster enriched for genes involved in immune response and myeloid cell differentiation was positively associated with maternal BMI and negatively with low birth weight. Two other gene modules, upregulated in association with maternal BMI as well as birth weight, were involved in processes related to organ and tissue development, with blood vessel morphogenesis and extracellular matrix structure as top Gene Ontology terms. In line with this, erythrocyte-, angiogenesis-, and extracellular matrix-related genes were among the identified hub genes. The association between maternal BMI and newborn weight was significantly mediated by gene expression for 5 of the hub genes (FZD4, COL15A1, GPR124, COL6A1, and COL1A1). As some of the identified hub genes have been linked to obesity in adults, our observation in placental tissue suggests that biological processes may be affected from prenatal life onwards, thereby identifying new molecular processes linking maternal BMI and fetal metabolic programming.
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Affiliation(s)
- Bianca Cox
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Maria Tsamou
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Karen Vrijens
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Kristof Y Neven
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Ellen Winckelmans
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Theo M de Kok
- Department of Toxicogenomics, Maastricht University, Maastricht, Netherlands
| | - Michelle Plusquin
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium
| | - Tim S Nawrot
- Center for Environmental Sciences, Hasselt University, Hasselt, Belgium.,Department of Public Health, Environment and Health Unit, Leuven University (KU Leuven), Leuven, Belgium
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30
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Reinhardt S, Schuck F, Stoye N, Hartmann T, Grimm MOW, Pflugfelder G, Endres K. Transcriptional repression of the ectodomain sheddase ADAM10 by TBX2 and potential implication for Alzheimer's disease. Cell Mol Life Sci 2019; 76:1005-1025. [PMID: 30599067 PMCID: PMC11105458 DOI: 10.1007/s00018-018-2998-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND The ADAM10-mediated cleavage of transmembrane proteins regulates cellular processes such as proliferation or migration. Substrate cleavage by ADAM10 has also been implicated in pathological situations such as cancer or Morbus Alzheimer. Therefore, identifying endogenous molecules, which modulate the amount and consequently the activity of ADAM10, might contribute to a deeper understanding of the enzyme's role in both, physiology and pathology. METHOD To elucidate the underlying cellular mechanism of the TBX2-mediated repression of ADAM10 gene expression, we performed overexpression, RNAi-mediated knockdown and pharmacological inhibition studies in the human neuroblastoma cell line SH-SY5Y. Expression analysis was conducted by e.g. real-time RT-PCR or western blot techniques. To identify the binding region of TBX2 within the ADAM10 promoter, we used luciferase reporter assay on deletion constructs and EMSA/WEMSA experiments. In addition, we analyzed a TBX2 loss-of-function Drosophila model regarding the expression of ADAM10 orthologs by qPCR. Furthermore, we quantified the mRNA level of TBX2 in post-mortem brain tissue of AD patients. RESULTS Here, we report TBX2 as a transcriptional repressor of ADAM10 gene expression: both, the DNA-binding domain and the repression domain of TBX2 were necessary to effect transcriptional repression of ADAM10 in neuronal SH-SY5Y cells. This regulatory mechanism required HDAC1 as a co-factor of TBX2. Transcriptional repression was mediated by two functional TBX2 binding sites within the core promoter sequence (- 315 to - 286 bp). Analysis of a TBX2 loss-of-function Drosophila model revealed that kuzbanian and kuzbanian-like, orthologs of ADAM10, were derepressed compared to wild type. Vice versa, analysis of cortical brain samples of AD-patients, which showed reduced ADAM10 mRNA levels, revealed a 2.5-fold elevation of TBX2, while TBX3 and TBX21 levels were not affected. CONCLUSION Our results characterize TBX2 as a repressor of ADAM10 gene expression and suggest that this regulatory interaction is conserved across tissues and species.
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Affiliation(s)
- Sven Reinhardt
- Department of Psychiatry and Psychotherapy, University Medical Center of the Johannes Gutenberg University Mainz, Untere Zahlbacher Strasse 8, 55131, Mainz, Germany
| | - Florian Schuck
- Department of Psychiatry and Psychotherapy, University Medical Center of the Johannes Gutenberg University Mainz, Untere Zahlbacher Strasse 8, 55131, Mainz, Germany
| | - Nicolai Stoye
- Department of Psychiatry and Psychotherapy, University Medical Center of the Johannes Gutenberg University Mainz, Untere Zahlbacher Strasse 8, 55131, Mainz, Germany
| | - Tobias Hartmann
- Deutsches Institut für Demenz Prävention (DIDP), Neurodegeneration and Neurobiology, Saarland University, Kirrbergerstrasse 1, 66421, Homburg, Saar, Germany
- Experimental Neurology, Saarland University, Kirrbergerstrasse 1, 66421, Homburg, Saar, Germany
| | - Marcus O W Grimm
- Deutsches Institut für Demenz Prävention (DIDP), Neurodegeneration and Neurobiology, Saarland University, Kirrbergerstrasse 1, 66421, Homburg, Saar, Germany
- Experimental Neurology, Saarland University, Kirrbergerstrasse 1, 66421, Homburg, Saar, Germany
| | - Gert Pflugfelder
- Institute of Developmental Biology and Neurobiology, Johannes Gutenberg University, Becherweg 32, 55128, Mainz, Germany
| | - Kristina Endres
- Department of Psychiatry and Psychotherapy, University Medical Center of the Johannes Gutenberg University Mainz, Untere Zahlbacher Strasse 8, 55131, Mainz, Germany.
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31
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Aydemir E, Kaşikci E, Coşkunçelebi B, Bayrak ÖF, Şahin F. The effect of TWIST silencing in metastatic chordoma cells. Turk J Biol 2019; 42:279-285. [PMID: 30814891 DOI: 10.3906/biy-1801-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Chordoma is a slowly growing and invasive bone tumor with a tendency to metastasize locally in advanced stages. It is essential to discover new therapeutics that target genes involved in the metastasis of chordoma. Epithelial-mesenchymal transition (EMT) might robustly influence the metastasis of a tumor bulk. To our knowledge, this is the first time to show that EMT might have a role in chordoma metastasis. In this study, we aim to investigate the possible role of Twist, a key player transcription factor of EMT, in chordoma metastasis. The TWIST gene was silenced by short hairpins in chordoma cell line MUG-Chor1 and effects on metastasis were investigated by wound healing/gap closure and invasion assays. Twist-silenced MUG-Chor1 cells were found to be less migratory and less invasive when compared to the negative control. This study indicates that Twist might have a role in metastatic chordoma cells.
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Affiliation(s)
- Esra Aydemir
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University , İstanbul , Turkey
| | - Ezgi Kaşikci
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University , İstanbul , Turkey
| | - Burcu Coşkunçelebi
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University , İstanbul , Turkey
| | - Ömer Faruk Bayrak
- Department of Medical Genetics, Yeditepe University Medical School and Yeditepe University Hospital , İstanbul , Turkey
| | - Fikrettin Şahin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University , İstanbul , Turkey
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32
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Kang S, Kim EH, Hwang JE, Shin JH, Jeong YS, Yim SY, Joo EW, Eun YG, Lee DJ, Sohn BH, Lee SH, Lim B, Lee JS. Prognostic significance of high metabolic activity in breast cancer: PET signature in breast cancer. Biochem Biophys Res Commun 2019; 511:185-191. [PMID: 30777332 DOI: 10.1016/j.bbrc.2019.02.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 02/07/2019] [Indexed: 02/06/2023]
Abstract
High metabolic activity, reflected in increased glucose uptake, is one of the hallmarks of many cancers including breast cancer. However, not all cancers avidly take up glucose, suggesting heterogeneity in their metabolic demand. Thus, we aim to generate a genomic signature of glucose hypermetabolism in breast cancer and examine its clinical relevance. To identify genes significantly associated with glucose uptake, gene expression data were analyzed together with the standardized uptake values (SUVmax) of 18F-fluorodeoxy-glucose on positron emission tomography (PET) for 11 breast cancers. The resulting PET signature was evaluated for prognostic significance in four large independent patient cohorts (n = 5417). Potential upstream regulators accountable for the high glucose uptake were identified by gene network analysis. A PET signature of 242 genes was significantly correlated with SUVmax in breast cancer. In all four cohorts, high PET signature was significantly associated with poorer prognosis. The prognostic value of this PET signature was further supported by Cox regression analyses (hazard ratio 1.7, confidential interval 1.48-2.02; P < 0.001). The PET signature was also strongly correlated with previously established prognostic genomic signatures such as PAM50, Oncotype DX, and NKI. Gene network analyses suggested that MYC and TBX2 were the most significant upstream transcription factors in the breast cancers with high glucose uptake. A PET signature reflecting high glucose uptake is a novel independent prognostic factor in breast cancer. MYC and TBX2 are potential regulators of glucose uptake.
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Affiliation(s)
- Sanghee Kang
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Surgery, Korea University College of Medicine, Seoul, Republic of Korea
| | - Eui Hyun Kim
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Neurosurgery, Severance Hospital, Brain Tumor Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jun-Eul Hwang
- Department of Hematology-Oncolgy, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Ji-Hyun Shin
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yun Seong Jeong
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sun Young Yim
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Eun Wook Joo
- Department of Gynecology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Young Gyu Eun
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Dong Jin Lee
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Hallym University, Seoul, Republic of Korea
| | - Bo Hwa Sohn
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sung Hwan Lee
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bora Lim
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ju-Seog Lee
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Liu X, Miao Z, Wang Z, Zhao T, Xu Y, Song Y, Huang J, Zhang J, Xu H, Wu J, Xu H. TBX2 overexpression promotes proliferation and invasion through epithelial-mesenchymal transition and ERK signaling pathway. Exp Ther Med 2018; 17:723-729. [PMID: 30651856 PMCID: PMC6307397 DOI: 10.3892/etm.2018.7028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 06/13/2018] [Indexed: 12/16/2022] Open
Abstract
The present study aimed to clarify the clinical significance and biological effects of T-box (TBX)2 and its potential mechanism in gastric cancer (GC). TBX2 protein expression levels in human GC tissues were investigated using immunohistochemistry, and it was demonstrated that TBX2 was overexpressed in 55.9% (90/161) GC samples. TBX2 overexpression correlated with tumor invasion, advanced tumor node metastasis stage and presence of lymph node metastasis. In addition, TBX2 correlated with poor patient survival. To investigate the effect of TBX2 on biological behaviors, TBX2 plasmid transfection was performed in SGC-7901 cells and TBX2 small interfering RNA knockdown was carried out in BGC-823 cells. MTT and matrigel invasion assays demonstrated that TBX2 overexpression promoted proliferation and invasion, whereas TBX2 depletion inhibited proliferation and invasion. TBX2 overexpression also promoted epithelial-mesenchymal transition by downregulating E-cadherin and upregulating N-cadherin. TBX2 overexpression also upregulated matrix metalloproteinase (MMP)2, MMP9, cyclin E and phosphorylated-extracellular signal regulated kinase levels, however downregulated p21. In conclusion, TBX2 may serve as an effective predictor and therapeutic target in human GC.
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Affiliation(s)
- Xingyu Liu
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Zhifeng Miao
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Zhenning Wang
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Tingting Zhao
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yingying Xu
- Department of Breast Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yongxi Song
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jinyu Huang
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Junyan Zhang
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Hao Xu
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jianhua Wu
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Huimian Xu
- Department of Surgical Oncology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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Hughes AEO, Myers CA, Corbo JC. A massively parallel reporter assay reveals context-dependent activity of homeodomain binding sites in vivo. Genome Res 2018; 28:1520-1531. [PMID: 30158147 PMCID: PMC6169884 DOI: 10.1101/gr.231886.117] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 08/27/2018] [Indexed: 12/20/2022]
Abstract
Cone-rod homeobox (CRX) is a paired-like homeodomain transcription factor (TF) and a master regulator of photoreceptor development in vertebrates. The in vitro DNA binding preferences of CRX have been described in detail, but the degree to which in vitro binding affinity is correlated with in vivo enhancer activity is not known. In addition, paired-class homeodomain TFs can bind DNA cooperatively as both homodimers and heterodimers at inverted TAAT half-sites separated by 2 or 3 nucleotides. This dimeric configuration is thought to mediate target specificity, but whether monomeric and dimeric sites encode distinct levels of activity is not known. Here, we used a massively parallel reporter assay to determine how local sequence context shapes the regulatory activity of CRX binding sites in mouse photoreceptors. We assayed inactivating mutations in more than 1700 TF binding sites and found that dimeric CRX binding sites act as stronger enhancers than monomeric CRX binding sites. Furthermore, the activity of dimeric half-sites is cooperative, dependent on a strict 3-bp spacing, and tuned by the identity of the spacer nucleotides. Saturating single-nucleotide mutagenesis of 195 CRX binding sites showed that, on average, changes in TF binding site affinity are correlated with changes in regulatory activity, but this relationship is obscured when considering mutations across multiple cis-regulatory elements (CREs). Taken together, these results demonstrate that the activity of CRX binding sites is highly dependent on sequence context, providing insight into photoreceptor gene regulation and illustrating functional principles of homeodomain binding sites that may be conserved in other cell types.
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Affiliation(s)
- Andrew E O Hughes
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
| | - Connie A Myers
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
| | - Joseph C Corbo
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
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35
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Xia X, Wang P, Wan R, Huo W, Chang Z. Toxic effects of cyhalofop-butyl on embryos of the Yellow River carp (Cyprinus carpio var.): alters embryos hatching, development failure, mortality of embryos, and apoptosis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:24305-24315. [PMID: 29948714 DOI: 10.1007/s11356-018-2489-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
As a universal environmental contaminant, the herbicide cyhalofop-butyl is considered to have infested effects on the embryonic development of aquatic species. The present study focused on an assessment of the impacts of cyhalofop-butyl on Yellow River carp embryos. It was found that cyhalofop-butyl inhibited the hatching of the embryos, and the hatching rate decreased with higher concentrations of the herbicide. The mortality rate was increased on exposure to cyhalofop-butyl and was significantly higher in the 1.6 and 2 mg/L treatment groups over 48 h. All of the embryos of the 2 mg/L treatment group died within the 48 h post-hatching stage. And the transcription of several embryos related to apoptosis was also influenced by cyhalofop-butyl exposure. Further, cyhalofop-butyl exposure leads to a series of morphological changes (pericardial edema, tail deformation, and spine deformation) in embryos, which were consistent with significant modifications in the associated genes. These results provided a scientific basis for further studies into the effects of cyhalofop-butyl on aquatic organisms.
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Affiliation(s)
- Xiaohua Xia
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, 46# East of Construction Road, Xinxiang, 453007, Henan, People's Republic of China.
| | - Peijin Wang
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, 46# East of Construction Road, Xinxiang, 453007, Henan, People's Republic of China
| | - Ruyan Wan
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, 46# East of Construction Road, Xinxiang, 453007, Henan, People's Republic of China
| | - Weiran Huo
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, 46# East of Construction Road, Xinxiang, 453007, Henan, People's Republic of China
| | - Zhongjie Chang
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, 46# East of Construction Road, Xinxiang, 453007, Henan, People's Republic of China
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36
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Teegala S, Chauhan R, Lei E, Weinstein DC. Tbx2 is required for the suppression of mesendoderm during early Xenopus development. Dev Dyn 2018; 247:903-913. [PMID: 29633424 DOI: 10.1002/dvdy.24633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 03/14/2018] [Accepted: 03/31/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND T-box family proteins are DNA-binding transcriptional regulators that play crucial roles during germ layer formation in the early vertebrate embryo. Well-characterized members of this family, including the transcriptional activators Brachyury and VegT, are essential for the proper formation of mesoderm and endoderm, respectively. To date, T-box proteins have not been shown to play a role in the promotion of the third primary germ layer, ectoderm. RESULTS Here, we report that the T-box factor Tbx2 is both sufficient and necessary for ectodermal differentiation in the frog Xenopus laevis. Tbx2 is expressed zygotically in the presumptive ectoderm, during blastula and gastrula stages. Ectopic expression of Tbx2 represses mesoderm and endoderm, while loss of Tbx2 leads to inappropriate expression of mesoderm- and endoderm-specific genes in the region fated to give rise to ectoderm. Misexpression of Tbx2 also promotes neural tissue in animal cap explants, suggesting that Tbx2 plays a role in both the establishment of ectodermal fate and its dorsoventral patterning. CONCLUSIONS Our studies demonstrate that Tbx2 functions as a transcriptional repressor during germ layer formation, and suggest that this activity is mediated in part through repression of target genes that are stimulated, in the mesendoderm, by transactivating T-box proteins. Taken together, our results point to a critical role for Tbx2 in limiting the potency of blastula-stage progenitor cells during vertebrate germ layer differentiation. Developmental Dynamics 247:903-913, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Sushma Teegala
- Department of Biology, The Graduate Center, City University of New York, New York.,Department of Biology, Queens College, City University of New York, Flushing, New York
| | - Riddhi Chauhan
- Department of Biology, Queens College, City University of New York, Flushing, New York
| | - Emily Lei
- Department of Biology, Queens College, City University of New York, Flushing, New York
| | - Daniel C Weinstein
- Department of Biology, Queens College, City University of New York, Flushing, New York
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37
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Tasaka R, Fukuda T, Shimomura M, Inoue Y, Wada T, Kawanishi M, Yasui T, Sumi T. TBX2 expression is associated with platinum-sensitivity of ovarian serous carcinoma. Oncol Lett 2017; 15:3085-3090. [PMID: 29435041 DOI: 10.3892/ol.2017.7719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 12/11/2017] [Indexed: 01/04/2023] Open
Abstract
The standard treatment for ovarian serous carcinoma comprises maximum debulking surgery and platinum-based chemotherapy. Despite the high response rate to chemotherapy, the majority of patients will be resistant to first-line agents and the prognosis for these patients is particularly poor. At present there are no reliable methods to determine or predict platinum resistance. T-box 2 (TBX2) is widely expressed in cancer cells and is involved in embryonic development and cell cycle regulation. TBX2 enables cells to bypass senescence through its ability to repress the cell cycle regulators p21 and p14ARF; silencing TBX2 induces senescence. Ectopic expression of TBX2 is associated with conferred resistance to the DNA-damaging chemotherapeutic drugs cisplatin and doxorubicin. In the present study the association between TBX2 expression and platinum sensitivity was investigated. A total of 54 patients with ovarian serous carcinoma (FIGO stages III and IV) were treated at Osaka City University Hospital (Osaka, Japan) from January 2005 to December 2012. Patients were divided into platinum-sensitive (n=27) and resistant (n=27) groups, according to the platinum-free interval calculated from the last platinum administration to the time of recurrence. TBX2 expression in human ovarian serous carcinoma cells was inhibited by a TBX2-specific siRNA and changes in cisplatin and carboplatin sensitivity were determined. The TBX2-weighted score was significantly lower in the platinum-sensitive group than the platinum-resistant group (P=0.005) and the low TBX2 expression group was significantly more sensitive to platinum-based chemotherapy (P=0.004). Sensitivity to cisplatin and carboplatin significantly increased when TBX2 expression was inhibited in human ovarian serous carcinoma cells in vitro (P<0.05). TBX2 expression may serve as a predictive marker of the efficacy of platinum-based chemotherapy for patients with ovarian serous carcinoma.
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Affiliation(s)
- Reiko Tasaka
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Takeshi Fukuda
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Masahiro Shimomura
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Yuta Inoue
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Takuma Wada
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Masaru Kawanishi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Tomoyo Yasui
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Toshiyuki Sumi
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
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38
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Ando J, Saito M, Imai JI, Ito E, Yanagisawa Y, Honma R, Saito K, Tachibana K, Momma T, Ohki S, Ohtake T, Watanabe S, Waguri S, Kono K, Takenoshita S. TBX19 is overexpressed in colorectal cancer and associated with lymph node metastasis. Fukushima J Med Sci 2017; 63:141-151. [PMID: 29199261 DOI: 10.5387/fms.2017-08] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The T-box 19 (TBX19) gene encodes a transcription factor characterized by a highly conserved DNA-binding motif (T-box). Recent studies have revealed that TBX19 has been identified as one of the genes activated by KRAS mutations, and is upregulated in colon adenoma. These results indicate that TBX19 may work as an oncogene in colorectal cancer (CRC). However, the expression and role of TBX19 have yet to be investigated. Here, we investigated TBX19 mRNA and protein expressions in colon cancer cells or surgically resected CRC. We found that TBX19 mRNA expression was significantly increased in tumorous tissues compared to that in non-tumorous tissues, and increased TBX19 mRNA expression was associated with positive lymph node metastasis in our cohort. The expression of TBX19 mRNA was not correlated with that of TBX19 protein in tissue sample taken from the CRC patients. Moreover, TBX19 showed positive staining even in the normal colonic tissues and the adjacent non-tumorous tissues. These results suggest that the expression of TBX19 protein is not correlated with the expression of TBX19 mRNA. In addition, our results promote further investigations into the impact of TBX19 upregulation on colorectal carcinogenesis, as well as the underlying mechanisms.
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Affiliation(s)
- Jin Ando
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine
| | - Motonobu Saito
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine
| | - Jun-Ichi Imai
- Medical-Industrial Translational Research Center, Fukushima Medical University
| | - Emi Ito
- Medical-Industrial Translational Research Center, Fukushima Medical University
| | | | | | - Katsuharu Saito
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine
| | | | - Tomoyuki Momma
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine
| | - Shinji Ohki
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine
| | - Tohru Ohtake
- Department of Breast Surgery, Fukushima Medical University School of Medicine
| | - Shinya Watanabe
- Medical-Industrial Translational Research Center, Fukushima Medical University
| | - Satoshi Waguri
- Department of Anatomy and Histology, Fukushima Medical University School of Medicine
| | - Koji Kono
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine
| | - Seiichi Takenoshita
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University School of Medicine
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39
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Lv Y, Si M, Chen N, Li Y, Ma X, Yang H, Zhang L, Zhu H, Xu GY, Wu GP, Cao C. TBX2 over-expression promotes nasopharyngeal cancer cell proliferation and invasion. Oncotarget 2017; 8:52699-52707. [PMID: 28881763 PMCID: PMC5581062 DOI: 10.18632/oncotarget.17084] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 03/12/2017] [Indexed: 12/31/2022] Open
Abstract
TBX2 is a member of the T box transcription factor family. Its expression and potential biological functions in nasopharyngeal cancer (NPC) cells are studied here. We showed that TBX2 mRNA and protein expression was significantly elevated in multiple human NPC tissues, as compared with that in adjacent normal tissues. Knockdown of TBX2 by targeted-siRNA significantly inhibited proliferation and invasion of NPC cells (CNE-1 and HONE-1 lines). Meanwhile, TBX2 knockdown also induced G1-phase cell cycle arrest. At the molecular level, we discovered that expressions of several tumor suppressor genes, including p21, p27, phosphatase with tensin homology (PTEN) and E-Cadherin, were increased dramatically after TBX2 knockdown in above NPC cells. Collectively, our results imply that TBX2 over-expression promotes NPC cell proliferation and invasion, possibly via silencing several key tumor suppressor genes.
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Affiliation(s)
- Yan Lv
- Center of Translational Medicine, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China
| | - Meng Si
- Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Nannan Chen
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Ya Li
- Institute of Neuroscience, Soochow University, Suzhou, China
| | - Xingkai Ma
- Department of Otolaryngology, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China
| | - Huijun Yang
- Department of Otolaryngology, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China
| | - Ling Zhang
- Center of Translational Medicine, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China
| | - Hongyan Zhu
- Center of Translational Medicine, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China
| | - Guang-Yin Xu
- Center of Translational Medicine, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China.,Institute of Neuroscience, Soochow University, Suzhou, China
| | - Ge-Ping Wu
- Center of Translational Medicine, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China.,Department of Otolaryngology, The First People Hospital of Zhangjiagang City, Soochow University, Suzhou, China
| | - C Cao
- Institute of Neuroscience, Soochow University, Suzhou, China
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40
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Nandana S, Tripathi M, Duan P, Chu CY, Mishra R, Liu C, Jin R, Yamashita H, Zayzafoon M, Bhowmick NA, Zhau HE, Matusik RJ, Chung LWK. Bone Metastasis of Prostate Cancer Can Be Therapeutically Targeted at the TBX2-WNT Signaling Axis. Cancer Res 2017; 77:1331-1344. [PMID: 28108510 PMCID: PMC5783646 DOI: 10.1158/0008-5472.can-16-0497] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 11/21/2016] [Accepted: 11/26/2016] [Indexed: 11/16/2022]
Abstract
Identification of factors that mediate visceral and bone metastatic spread and subsequent bone remodeling events is highly relevant to successful therapeutic intervention in advanced human prostate cancer. TBX2, a T-box family transcription factor that negatively regulates cell-cycle inhibitor p21, plays critical roles during embryonic development, and recent studies have highlighted its role in cancer. Here, we report that TBX2 is overexpressed in human prostate cancer specimens and bone metastases from xenograft mouse models of human prostate cancer. Blocking endogenous TBX2 expression in PC3 and ARCaPM prostate cancer cell models using a dominant-negative construct resulted in decreased tumor cell proliferation, colony formation, and invasion in vitro Blocking endogenous TBX2 in human prostate cancer mouse xenografts decreased invasion and abrogation of bone and soft tissue metastasis. Furthermore, blocking endogenous TBX2 in prostate cancer cells dramatically reduced bone-colonizing capability through reduced tumor cell growth and bone remodeling in an intratibial mouse model. TBX2 acted in trans by promoting transcription of the canonical WNT (WNT3A) promoter. Genetically rescuing WNT3A levels in prostate cancer cells with endogenously blocked TBX2 partially restored the TBX2-induced prostate cancer metastatic capability in mice. Conversely, WNT3A-neutralizing antibodies or WNT antagonist SFRP-2 blocked TBX2-induced invasion. Our findings highlight TBX2 as a novel therapeutic target upstream of WNT3A, where WNT3A antagonists could be novel agents for the treatment of metastasis and for skeletal complications in prostate cancer patients. Cancer Res; 77(6); 1331-44. ©2017 AACR.
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Affiliation(s)
- Srinivas Nandana
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
| | - Manisha Tripathi
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Peng Duan
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Chia-Yi Chu
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Rajeev Mishra
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Chunyan Liu
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Renjie Jin
- Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Hironobu Yamashita
- Department of Pathology, Penn State College of Medicine, Hershey, Pennsylvania
| | - Majd Zayzafoon
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Neil A Bhowmick
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Haiyen E Zhau
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Robert J Matusik
- Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Leland W K Chung
- Uro-Oncology Research Program, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
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41
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Yi F, Du J, Ni W, Liu W. Tbx2 confers poor prognosis in glioblastoma and promotes temozolomide resistance with change of mitochondrial dynamics. Onco Targets Ther 2017; 10:1059-1069. [PMID: 28260920 PMCID: PMC5325101 DOI: 10.2147/ott.s124012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Tbx2 is a cancer-related protein that was found to be overexpressed in several human malignancies. The present study aims to investigate the clinical significance and biological role of Tbx2 in human astrocytoma. We examined its protein expression in 102 cases of astrocytoma tissues using immunohistochemical staining. Negative Tbx2 staining was observed in normal astrocytes, and positive nuclear staining was found in 41 out of 102 astrocytoma specimens. The rate of Tbx2 overexpression in pylocytic astrocytoma, diffuse astrocytoma, anaplastic astrocytoma, and glioblastoma multiform (GBM) were 0%, 26.1%, 40%, and 52%, respectively. Tbx2 overexpression correlated with poor prognosis in patients with astrocytoma or GBM. Tbx2 plasmid transfection was performed in A172 cells, and Tbx2 siRNA knockdown was carried out in U251 cells. Cell Counting Kit-8, cell cycle analysis, and matrigel invasion assay showed that Tbx2 overexpression upregulated cell proliferation, G1-S transition, and invasion, with corresponding change of cyclin D1, p21, and MMP 2 and 9. Importantly, we demonstrated that Tbx2 reduced apoptosis and conferred resistance to temozolomide in GBM cell lines. Further experiments showed that Tbx2 could regulate mitochondrial fission/fusion balance. Western blot showed that Tbx2 overexpression reduced caspase 3 cleavage, while it induced Bcl-2 and p-Drp1 upregulation. In conclusion, our results indicated that Tbx2 might serve as an indicator for poor prognosis and also be useful as an important therapeutic in human GBM, which inhibits apoptosis through regulation of mitochondrial function.
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Affiliation(s)
- Fuxin Yi
- Department of Neurosurgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Jianzhou Du
- Department of Neurosurgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Weimin Ni
- Department of Neurosurgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
| | - Weixian Liu
- Department of Neurosurgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China
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42
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Drummond BE, Li Y, Marra AN, Cheng CN, Wingert RA. The tbx2a/b transcription factors direct pronephros segmentation and corpuscle of Stannius formation in zebrafish. Dev Biol 2017; 421:52-66. [PMID: 27840199 PMCID: PMC5955707 DOI: 10.1016/j.ydbio.2016.10.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 10/21/2016] [Accepted: 10/27/2016] [Indexed: 12/25/2022]
Abstract
The simplified and genetically conserved zebrafish pronephros is an excellent model to examine the cryptic processes of cell fate decisions during the development of nephron segments as well as the origins of associated endocrine cells that comprise the corpuscles of Stannius (CS). Using whole mount in situ hybridization, we found that transcripts of the zebrafish genes t-box 2a (tbx2a) and t-box 2b (tbx2b), which belong to the T-box family of transcription factors, were expressed in the caudal intermediate mesoderm progenitors that give rise to the distal pronephros and CS. Deficiency of tbx2a, tbx2b or both tbx2a/b reduced the size of the distal late (DL) segment, which was accompanied by a proximal convoluted segment (PCT) expansion. Further, tbx2a/b deficiency led to significantly larger CS clusters. These phenotypes were also observed in embryos with the from beyond (fby)c144 mutation, which encodes a premature stop codon in the tbx2b T-box sequence. Conversely, overexpression of tbx2a and tbx2b in wild-type embryos expanded the DL segment where cells were comingled with the adjacent DE, and also decreased CS cell number, but notably did not alter PCT development-providing independent evidence that tbx2a and tbx2b are each necessary and sufficient to promote DL fate and suppress CS genesis. Epistasis studies indicated that tbx2a acts upstream of tbx2b to regulate the DL and CS fates, and likely has other targets as well. Retinoic acid (RA) addition and inhibition studies revealed that tbx2a and tbx2b are negatively regulated by RA signaling. Interestingly, the CS cell expansion that typifies tbx2a/b deficiency also occurred when blocking Notch signaling with the chemical DAPT (N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester). Ectopic activation of Notch in Tg(hsp70::Gal4; UAS::NICD)(NICD) embryos led to a reduced CS post heat-shock induction. To further examine the link between the tbx2a/b genes and Notch during CS formation, DAPT treatment was used to block Notch activity in tbx2a/b deficient embryos, and tbx2a/b knockdown was performed in NICD transgenic embryos. Both manipulations caused similar CS expansions, indicating that Notch functions upstream of the tbx2a/b genes to suppress CS ontogeny. Taken together, these data reveal for the first time that tbx2a/b mitigate pronephros segmentation downstream of RA, and that interplay between Notch signaling and tbx2a/b regulate CS formation, thus providing several novel insights into the genetic regulatory networks that influence these lineages.
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Affiliation(s)
- Bridgette E Drummond
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Yue Li
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Amanda N Marra
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Christina N Cheng
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Rebecca A Wingert
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, University of Notre Dame, Notre Dame, IN 46556, USA.
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43
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Wang X, Lee RS, Alver BH, Haswell JR, Wang S, Mieczkowski J, Drier Y, Gillespie SM, Archer TC, Wu JN, Tzvetkov EP, Troisi EC, Pomeroy SL, Biegel JA, Tolstorukov MY, Bernstein BE, Park PJ, Roberts CWM. SMARCB1-mediated SWI/SNF complex function is essential for enhancer regulation. Nat Genet 2016; 49:289-295. [PMID: 27941797 PMCID: PMC5285474 DOI: 10.1038/ng.3746] [Citation(s) in RCA: 227] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 11/18/2016] [Indexed: 02/07/2023]
Abstract
SMARCB1 (also known as SNF5, INI1, and BAF47), a core subunit of the SWI/SNF (BAF) chromatin-remodeling complex, is inactivated in nearly all pediatric rhabdoid tumors. These aggressive cancers are among the most genomically stable, suggesting an epigenetic mechanism by which SMARCB1 loss drives transformation. Here we show that, despite having indistinguishable mutational landscapes, human rhabdoid tumors exhibit distinct enhancer H3K27ac signatures, which identify remnants of differentiation programs. We show that SMARCB1 is required for the integrity of SWI/SNF complexes and that its loss alters enhancer targeting-markedly impairing SWI/SNF binding to typical enhancers, particularly those required for differentiation, while maintaining SWI/SNF binding at super-enhancers. We show that these retained super-enhancers are essential for rhabdoid tumor survival, including some that are shared by all subtypes, such as SPRY1, and other lineage-specific super-enhancers, such as SOX2 in brain-derived rhabdoid tumors. Taken together, our findings identify a new chromatin-based epigenetic mechanism underlying the tumor-suppressive activity of SMARCB1.
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Affiliation(s)
- Xiaofeng Wang
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Ryan S Lee
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Burak H Alver
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts, USA
| | - Jeffrey R Haswell
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Su Wang
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts, USA
| | - Jakub Mieczkowski
- Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Yotam Drier
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Shawn M Gillespie
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Tenley C Archer
- Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jennifer N Wu
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Evgeni P Tzvetkov
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Emma C Troisi
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Scott L Pomeroy
- Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jaclyn A Biegel
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles and Keck School of Medicine at the University of Southern California, Los Angeles, California, USA
| | - Michael Y Tolstorukov
- Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Bradley E Bernstein
- Department of Pathology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.,Howard Hughes Medical Institute, Chevy Chase, Maryland, USA
| | - Peter J Park
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts, USA.,Division of Genetics, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Charles W M Roberts
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.,Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA.,Comprehensive Cancer Center and Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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44
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Chang F, Xing P, Song F, Du X, Wang G, Chen K, Yang J. The role of T-box genes in the tumorigenesis and progression of cancer. Oncol Lett 2016; 12:4305-4311. [PMID: 28105146 PMCID: PMC5228544 DOI: 10.3892/ol.2016.5296] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 09/09/2016] [Indexed: 01/06/2023] Open
Abstract
The T-box (TBX) genes are part of an evolutionarily conserved family of transcription factors involved in organ development. They serve key roles in a number of molecular mechanisms, including proliferation, cell fate and organ identity. In addition, previous studies suggest that TBX genes have essential functions in the tumorigenesis and progression of various types of cancer. For example, TBX proteins served significant roles in carcinogenesis, proliferation and differentiation, senescence and apoptosis, invasion and migration, mesenchymal-epithelial and epithelial-mesenchymal transition, oncogenic signaling pathways and drug sensitivity. However, the exact mechanisms by which TBX genes carry out these functions have not yet been fully elucidated. The present review focuses on the role of TBX genes in cancer, with the aim of further clarifying their function. As altered levels of TBX proteins have detrimental consequences in numerous types of cancer, there is a need for further research into TBX genes, which this review may aid through providing a comprehensive insight into the topic.
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Affiliation(s)
- Fangyuan Chang
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Peipei Xing
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Fengju Song
- National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; Epidemiology and Biostatistics Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Xiaoling Du
- Department of Diagnostics, Tianjin Medical University, Tianjin 300061, P.R. China
| | - Guowen Wang
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Kexin Chen
- National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; Epidemiology and Biostatistics Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
| | - Jilong Yang
- Bone and Soft Tissue Tumor Department, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China; National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, P.R. China
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Fischer K, Pflugfelder GO. Putative Breast Cancer Driver Mutations in TBX3 Cause Impaired Transcriptional Repression. Front Oncol 2015; 5:244. [PMID: 26579496 PMCID: PMC4625211 DOI: 10.3389/fonc.2015.00244] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 10/14/2015] [Indexed: 12/17/2022] Open
Abstract
The closely related T-box transcription factors TBX2 and TBX3 are frequently overexpressed in melanoma and various types of human cancers, in particular, breast cancer. The overexpression of TBX2 and TBX3 can have several cellular effects, among them suppression of senescence, promotion of epithelial-mesenchymal transition, and invasive cell motility. In contrast, loss of function of TBX3 and most other human T-box genes causes developmental haploinsufficiency syndromes. Stephens and colleagues (1), by exome sequencing of breast tumor samples, identified five different mutations in TBX3, all affecting the DNA-binding T-domain. One in-frame deletion of a single amino acid, p.N212delN, was observed twice. Due to the clustering of these mutations to the T-domain and for statistical reasons, TBX3 was inferred to be a driver gene in breast cancer. Since mutations in the T-domain generally cause loss of function and because the tumorigenic action of TBX3 has generally been attributed to overexpression, we determined whether the putative driver mutations had loss- or gain-of-function properties. We tested two in-frame deletions, one missense, and one frameshift mutant protein for DNA-binding in vitro, and for target gene repression in cell culture. In addition, we performed an in silico analysis of somatic TBX mutations in breast cancer, collected in The Cancer Genome Atlas (TCGA). Both the experimental and the in silico analysis indicate that the observed mutations predominantly cause loss of TBX3 function.
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Pan L, Ma X, Wen B, Su Z, Zheng X, Liu Y, Li H, Chen Y, Wang J, Lu F, Qu J, Hou L. Microphthalmia-associated transcription factor/T-box factor-2 axis acts through Cyclin D1 to regulate melanocyte proliferation. Cell Prolif 2015; 48:631-42. [PMID: 26486273 DOI: 10.1111/cpr.12227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 08/07/2015] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES Control of cell proliferation is critical for accurate cell differentiation and tissue formation, during development and regeneration. Here, we have analysed the role of microphthalmia-associated transcription factor MITF and its direct target, T-box factor TBX2, in regulating proliferation of mammalian neural crest-derived melanocytes. MATERIALS AND METHODS Immunohistochemistry was used to examine spatial and temporal expression of TBX2 in melanocytes in vivo. RNAi and cell proliferation analysis were used to investigate functional roles of TBX2. Furthermore, quantitative RT-PCR, western blot analysis and flow cytometry were used to further scrutinize molecular mechanisms underlying TBX2-dependent cell proliferation. RESULTS TBX2 was found to be co-expressed with MITF in melanocytes of mouse hair follicles. Specific Tbx2 knockdown in primary neural crest cells led to inhibition MITF-positive melanoblast proliferation. Tbx2 knockdown in melan-a cells led to reduction in Cyclin D1 expression and G1-phase cell cycle arrest. TBX2 directly activated Ccnd1 transcription by binding to a specific sequence in the Ccnd1 promoter, and the defect in cell proliferation could be rescued partially by overexpression of Cyclin D1 in Tbx2 knockdown melanocytes. CONCLUSIONS Results suggest that the Mitf-Tbx2-Cyclin D1 pathway played an important role in regulation of melanocyte proliferation, and provided novel insights into the complex physiology of melanocytes.
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Affiliation(s)
- L Pan
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China.,State Key Laboratory Cultivation Base and Key Laboratory of Vision Science of Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology, Wenzhou Medical University, Wenzhou, 325003, China
| | - X Ma
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China.,State Key Laboratory Cultivation Base and Key Laboratory of Vision Science of Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology, Wenzhou Medical University, Wenzhou, 325003, China
| | - B Wen
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China
| | - Z Su
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China
| | - X Zheng
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China
| | - Y Liu
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China
| | - H Li
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China
| | - Y Chen
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China
| | - J Wang
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China
| | - F Lu
- State Key Laboratory Cultivation Base and Key Laboratory of Vision Science of Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology, Wenzhou Medical University, Wenzhou, 325003, China
| | - J Qu
- State Key Laboratory Cultivation Base and Key Laboratory of Vision Science of Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology, Wenzhou Medical University, Wenzhou, 325003, China
| | - L Hou
- Laboratory of Developmental Cell Biology and Disease, School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325003, China.,State Key Laboratory Cultivation Base and Key Laboratory of Vision Science of Ministry of Health and Zhejiang Provincial Key Laboratory of Ophthalmology, Wenzhou Medical University, Wenzhou, 325003, China
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Shen J, Lu J, Sui L, Wang D, Yin M, Hoffmann I, Legler A, Pflugfelder GO. The orthologous Tbx transcription factors Omb and TBX2 induce epithelial cell migration and extrusion in vivo without involvement of matrix metalloproteinases. Oncotarget 2015; 5:11998-2015. [PMID: 25344916 PMCID: PMC4322970 DOI: 10.18632/oncotarget.2426] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 09/02/2014] [Indexed: 01/06/2023] Open
Abstract
The transcription factors TBX2 and TBX3 are overexpressed in various human cancers. Here, we investigated the effect of overexpressing the orthologous Tbx genes Drosophila optomotor-blind (omb) and human TBX2 in the epithelium of the Drosophila wing imaginal disc and observed two types of cell motility. Omb/TBX2 overexpressing cells could move within the plane of the epithelium. Invasive cells migrated long-distance as single cells retaining or regaining normal cell shape and apico-basal polarity in spite of attenuated apical DE-cadherin concentration. Inappropriate levels of DE-cadherin were sufficient to drive cell migration in the wing disc epithelium. Omb/TBX2 overexpression and reduced DE-cadherin-dependent adhesion caused the formation of actin-rich lateral cell protrusions. Omb/TBX2 overexpressing cells could also delaminate basally, penetratingthe basal lamina, however, without degradation of extracellular matrix. Expression of Timp, an inhibitor of matrix metalloproteases, blocked neither intraepithelial motility nor basal extrusion. Our results reveal an MMP-independent mechanism of cell invasion and suggest a conserved role of Tbx2-related proteins in cell invasion and metastasis-related processes.
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Affiliation(s)
- Jie Shen
- Department of Entomology, China Agricultural University, Beijing, China
| | - Juan Lu
- Department of Entomology, China Agricultural University, Beijing, China
| | - Liyuan Sui
- Department of Entomology, China Agricultural University, Beijing, China
| | - Dan Wang
- Department of Entomology, China Agricultural University, Beijing, China
| | - Meizhen Yin
- Key Laboratory of Carbon Fiber and Functional Polymers, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Inka Hoffmann
- Institute of Genetics, Johannes Gutenberg-University, Mainz, Germany
| | - Anne Legler
- Institute of Genetics, Johannes Gutenberg-University, Mainz, Germany
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Yu H, Liu BO, Liu A, Li K, Zhao H. T-box 2 expression predicts poor prognosis in gastric cancer. Oncol Lett 2015; 10:1689-1693. [PMID: 26622733 DOI: 10.3892/ol.2015.3428] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 06/03/2015] [Indexed: 11/06/2022] Open
Abstract
T-Box 2 (TBX2) plays a critical role in embryonic development. Previously, TBX2 has been suggested to be involved in malignancies. However, the role of TBX2 in gastric cancer (GC) remains unclear. In the present study, TBX2 expression was found to be evidently upregulated in GC compared with the expression in the corresponding adjacent non-cancerous tissues at the mRNA and protein levels. Using immunohistochemical analysis on the tissue samples obtained from 266 patients with GC, TBX2 expression was found to be significantly associated with the clinical stage and incidence of vascular invasion and metastasis. Patients with GC that expressed TBX2 demonstrated a shorter overall survival time compared with the patients without TBX2 expression. Multivariate analysis revealed that TBX2 expression was an independent prognostic factor for overall survival (hazard ratio, 3.930; 95% confidence interval, 2.041-7.917; P=0.009). These results indicated that TBX2 is a prognostic marker for patients with GC.
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Affiliation(s)
- Haihua Yu
- Department of Gastrointestinal Surgery, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - B O Liu
- Department of Gastrointestinal Surgery, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - Aiwu Liu
- Department of Gastrointestinal Surgery, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - Kai Li
- Department of Gastrointestinal Surgery, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - Hongpeng Zhao
- Department of Gastrointestinal Surgery, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
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Milton AC, Okkema PG. Caenorhabditis elegans TBX-2 Directly Regulates Its Own Expression in a Negative Autoregulatory Loop. G3 (BETHESDA, MD.) 2015; 5:1177-86. [PMID: 25873636 PMCID: PMC4478547 DOI: 10.1534/g3.115.018101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 04/10/2015] [Indexed: 11/18/2022]
Abstract
T-box genes often exhibit dynamic expression patterns, and their expression levels can be crucial for normal function. Despite the importance of these genes, there is little known about T-box gene regulation. We have focused on the Caenorhabditis elegans gene tbx-2 to understand how T-box gene expression is regulated, and here we demonstrate TBX-2 itself directly represses its own expression in a negative autoregulatory loop. tbx-2 is essential for normal pharyngeal muscle development, and a tbx-2 promoter gfp fusion (Ptbx-2::gfp) is transiently expressed in the pharynx during embryogenesis and in a small number of head neurons in larvae and adults. Reduced tbx-2 function resulted in ectopic Ptbx-2::gfp expression in the seam cells and gut in larvae and adults. Mutation of potential T-box binding sites within the tbx-2 promoter resulted in a similar pattern of ectopic Ptbx-2::gfp expression, and chromatin immunoprecipitation analyses show TBX-2 binds these sites in vivo. This pattern of ectopic Ptbx-2::gfp expression in tbx-2 mutants was very similar to that observed in mutants affecting the NF-Y complex, and our results comparing tbx-2 and nfyb-1 single- and double mutants suggest TBX-2 and NF-Y function in a single pathway to repress the tbx-2 promoter. The tbx-2 promoter is the first direct target identified for TBX-2, and we used it to ask whether SUMOylation is essential for TBX-2 repression. RNAi knockdown of SUMOylation pathway components led to ectopic Ptbx-2::gfp expression in the seam cells and gut. Ectopic Ptbx-2::gfp also was observed in the syncytial hypodermis, suggesting either the tbx-2 promoter is repressed by other SUMOylation dependent mechanisms, or that decreased SUMOylation leads to stable changes in seam cell nuclei as they fuse with the syncytial hypodermis. We suggest negative autoregulation is an important mechanism that allows precise control of tbx-2 expression levels and may allow rapid changes in gene expression during development.
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Affiliation(s)
- Angenee C Milton
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Peter G Okkema
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois 60607
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Papaioannou VE. The T-box gene family: emerging roles in development, stem cells and cancer. Development 2014; 141:3819-33. [PMID: 25294936 DOI: 10.1242/dev.104471] [Citation(s) in RCA: 205] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The T-box family of transcription factors exhibits widespread involvement throughout development in all metazoans. T-box proteins are characterized by a DNA-binding motif known as the T-domain that binds DNA in a sequence-specific manner. In humans, mutations in many of the genes within the T-box family result in developmental syndromes, and there is increasing evidence to support a role for these factors in certain cancers. In addition, although early studies focused on the role of T-box factors in early embryogenesis, recent studies in mice have uncovered additional roles in unsuspected places, for example in adult stem cell populations. Here, I provide an overview of the key features of T-box transcription factors and highlight their roles and mechanisms of action during various stages of development and in stem/progenitor cell populations.
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Affiliation(s)
- Virginia E Papaioannou
- Department of Genetics and Development, Columbia University Medical Center, New York, NY 10032, USA
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