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Divvela SSK, Offei EB, Suerland F, Revuelta García D, Kwiatkowski J, Balakrishnan-Renuka A, Bohne P, Böing M, Morosan-Puopolo G, Mark MD, Brand-Saberi B. Atonal homolog 8/Math6 regulates differentiation and maintenance of skeletal muscle. Front Cell Dev Biol 2022; 10:950414. [PMID: 36060799 PMCID: PMC9438786 DOI: 10.3389/fcell.2022.950414] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 07/06/2022] [Indexed: 12/16/2022] Open
Abstract
Atonal Homolog 8 (Atoh8) belongs to a large superfamily of transcriptional regulators called basic helix-loop-helix (bHLH) transcription factors. Atoh8 (murine homolog “Math6”) has been shown to be involved in organogenesis during murine embryonic development. We have previously identified the expression of Atoh8 during skeletal myogenesis in chicken where we described its involvement in hypaxial myotome formation suggesting a regulatory role of Atoh8 in skeletal muscle development. Within the current study, we analyzed the effect of the loss of function of Atoh8 in murine primary myoblasts and during differentiation of pluripotent stem cells into myotubes, and the effect of its gain of function in C2C12 cells. Based on the observed results, we conclude that Atoh8 regulates myoblast proliferation via modulating myostatin signaling. Further, our data revealed a reduced muscle mass, strength and fiber size with significant changes to the muscle fiber type suggesting atrophy in skeletal muscle of Atoh8 mutants. We further report that Atoh8 knockout mice suffer from a condition similar to ambient hypoxia which may be the primary cause of the phenotype. Altogether, this study shows the significance of Atoh8 not only in myogenesis but also in the maintenance of skeletal muscle.
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Affiliation(s)
| | - Eric Bekoe Offei
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
- University of Ghana, School of Veterinary Medicine, Legon, Ghana
| | - Florian Suerland
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - David Revuelta García
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Julia Kwiatkowski
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Ajeesh Balakrishnan-Renuka
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Pauline Bohne
- Department of Behavioral Neuroscience, Faculty of Biology and Biotechnology, Ruhr-University Bochum, Bochum, Germany
| | - Marion Böing
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Gabriela Morosan-Puopolo
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Melanie D. Mark
- Department of Behavioral Neuroscience, Faculty of Biology and Biotechnology, Ruhr-University Bochum, Bochum, Germany
| | - Beate Brand-Saberi
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
- *Correspondence: Beate Brand-Saberi,
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2
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Agnoletto C, Volinia S. Mitochondria dysfunction in circulating tumor cells. Front Oncol 2022; 12:947479. [PMID: 35992829 PMCID: PMC9386562 DOI: 10.3389/fonc.2022.947479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/11/2022] [Indexed: 12/16/2022] Open
Abstract
Circulating tumor cells (CTCs) represent a subset of heterogeneous cells, which, once released from a tumor site, have the potential to give rise to metastasis in secondary sites. Recent research focused on the attempt to detect and characterize these rare cells in the circulation, and advancements in defining their molecular profile have been reported in diverse tumor species, with potential implications for clinical applications. Of note, metabolic alterations, involving mitochondria, have been implicated in the metastatic process, as key determinants in the transition of tumor cells to a mesenchymal or stemness-like phenotype, in drug resistance, and in induction of apoptosis. This review aimed to briefly analyse the most recent knowledge relative to mitochondria dysfunction in CTCs, and to envision implications of altered mitochondria in CTCs for a potential utility in clinics.
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Affiliation(s)
- Chiara Agnoletto
- Rete Oncologica Veneta (ROV), Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Stefano Volinia
- Laboratorio per le Tecnologie delle Terapie Avanzate (LTTA), Department of Translational Medicine, University of Ferrara, Ferrara, Italy
- Biological and Chemical Research Centre (CNBCh UW), University of Warsaw, Warsaw, Poland
- Center of New Technologies, University of Warsaw, Warsaw, Poland
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3
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Divvela SSK, Saberi D, Brand-Saberi B. Atoh8 in Development and Disease. BIOLOGY 2022; 11:biology11010136. [PMID: 35053134 PMCID: PMC8773363 DOI: 10.3390/biology11010136] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 01/07/2023]
Abstract
Atoh8 belongs to a large superfamily of transcriptional regulators called basic helix-loop-helix (bHLH) proteins. bHLH proteins have been identified in a wide range of organisms from yeast to humans. The members of this special group of transcription factors were found to be involved not only in embryonic development but also in disease initiation and its progression. Given their importance in several fundamental processes, the translation, subcellular location and turnover of bHLH proteins is tightly regulated. Alterations in the expression of bHLH proteins have been associated with multiple diseases also in context with Atoh8 which seems to unfold its functions as both transcriptional activator and repressor. Like many other bHLH transcription factors, so far, Atoh8 has also been observed to be involved in both embryonic development and carcinogenesis where it mainly acts as tumor suppressor. This review summarizes our current understanding of Atoh8 structure, function and regulation and its complex and partially controversial involvement in development and disease.
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Affiliation(s)
| | - Darius Saberi
- Department of Neurology, University Medical Center, 37099 Göttingen, Germany;
| | - Beate Brand-Saberi
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr University Bochum, 44801 Bochum, Germany;
- Correspondence:
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4
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Tang Q, Xie MY, Zhang YL, Xue RY, Zhu XH, Yang H. Targeted deletion of Atoh8 results in severe hearing loss in mice. Genesis 2021; 59:e23442. [PMID: 34402594 PMCID: PMC9286369 DOI: 10.1002/dvg.23442] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 08/01/2021] [Accepted: 08/02/2021] [Indexed: 11/29/2022]
Abstract
Atoh8, also named Math6, is a bHLH gene reported to have important functions in the developing nervous system, pancreas and kidney. However, the expression pattern and function of Atoh8 in the inner ear are still unclear. To study the function of Atoh8 in the developing mouse inner ear, we performed targeted deletion of Atoh8 by intercrossing Atoh8lacZ/+ mice. We studied the expression pattern of Atoh8 in the inner ear and found interesting results that Atoh8‐null (Atoh8lacZ/lacZ) mice were viable but smaller than their littermates and they were severely hearing impaired, which was confirmed by hearing tests (ABR, DPOAE). We collected 129 viable newborns from 18 litters by crossing Atoh8lacZ/+ mice and found that the distributions of Atoh8lacZ/+, Atoh8lacZ/lacZ and wild type were very close to their expected Mendelian ratio by χ2 testing. However, no remarkable morphological changes in cochleae in mutant mice were detected under plastic sectioning and electron microscopy. No remarkable differences in the expression of Myosin6, Prestin, TrkC, GAD65, Tuj1, or Calretinin were detected between the mutant mice and the control mice. These findings indicate that Atoh8 plays an important role in the development of normal hearing, while further studies are required to elucidate its exact function in hearing.
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Affiliation(s)
- Qi Tang
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Meng-Yao Xie
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yong-Li Zhang
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruo-Yan Xue
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiao-Hui Zhu
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hua Yang
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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5
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Xu M, Huang S, Dong X, Chen Y, Li M, Shi W, Wang G, Huang C, Wang Q, Liu Y, Sun P, Yang S, Xiang R, Chang A. A novel isoform of ATOH8 promotes the metastasis of breast cancer by regulating RhoC. J Mol Cell Biol 2020; 13:59-71. [PMID: 33049034 PMCID: PMC8035989 DOI: 10.1093/jmcb/mjaa050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 07/20/2020] [Accepted: 08/02/2020] [Indexed: 12/24/2022] Open
Abstract
Metastases are the main cause of cancer-related mortality in breast cancer. Although significant progress has been made in the field of tumor metastasis, the exact molecular mechanisms involved in tumor metastasis are still unclear. Here, we report that ATOH8-V1, a novel isoform of ATOH8, is highly expressed in breast cancer and is a negative prognostic indicator of survival for patients. Forced expression of ATOH8-V1 dramatically enhances, while silencing of ATOH8-V1 decreases the metastasis of breast cancer cell lines. Moreover, ATOH8-V1 directly binds to the RhoC promoter and stimulates the expression of RhoC, which in turn enhances the metastasis of breast cancer. Altogether, our data demonstrate that ATOH8-V1 is a novel pro-metastatic factor that enhances cancer metastasis, suggesting that ATOH8-V1 is a potential therapeutic target for treatment of metastatic cancers.
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Affiliation(s)
- Mengyao Xu
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Shan Huang
- School of Medicine, Nankai University, Tianjin 300071, China.,Department of Cancer Biology and Comprehensive Cancer Center, Wake Forest University Medical Center, Winston-Salem, NC 27157, USA
| | - Xiaoli Dong
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Yanan Chen
- School of Medicine, Nankai University, Tianjin 300071, China.,International Collaborative Innovation Center of Medicine, Nankai University, Tianjin 300071, China
| | - Miao Li
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Wen Shi
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Guanwen Wang
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Chongbiao Huang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Qiong Wang
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Yanhua Liu
- School of Medicine, Nankai University, Tianjin 300071, China.,International Collaborative Innovation Center of Medicine, Nankai University, Tianjin 300071, China
| | - Peiqing Sun
- Department of Cancer Biology and Comprehensive Cancer Center, Wake Forest University Medical Center, Winston-Salem, NC 27157, USA
| | - Shuang Yang
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Rong Xiang
- School of Medicine, Nankai University, Tianjin 300071, China.,International Collaborative Innovation Center of Medicine, Nankai University, Tianjin 300071, China
| | - Antao Chang
- School of Medicine, Nankai University, Tianjin 300071, China.,Department of Cancer Biology and Comprehensive Cancer Center, Wake Forest University Medical Center, Winston-Salem, NC 27157, USA.,International Collaborative Innovation Center of Medicine, Nankai University, Tianjin 300071, China
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6
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Mao Q, Wang L, Liang Y, Dong G, Xia W, Hu J, Xu L, Jiang F. CYP3A5 suppresses metastasis of lung adenocarcinoma through ATOH8/Smad1 axis. Am J Cancer Res 2020; 10:3194-3211. [PMID: 33163265 PMCID: PMC7642649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023] Open
Abstract
Cytochrome P450 3A5 (CYP3A5) maintains primary roles in toxic metabolism, catalyzes redox reaction, and contributes to chemotherapeutic resistance. However, the mechanism of CYP3A5 in carcinogenesis remains largely undefined. Here, we investigated a novel role of CYP3A5 inhibiting the metastasis in lung adenocarcinoma (LUAD) via ATOH8/Smad1 axis. We found that CYP3A5 was generally down-regulated in LUAD by RT-PCR, western blot and immunohistochmeistry (IHC) in tissues and cell lines. Low expression of CYP3A5 was significantly associated with poor prognosis of LUAD patients. Functionally, ectopic expression of CYP3A5 could substantially inhibit the migration and invasion in vitro. Consistently, up-regulation of CYP3A5 dramatically suppressed metastatic ability in vivo. Mechanistically, high-throughput phosphorylation chip indicated that CYP3A5 significantly decreased the phosphorylation of Smad1, resulting in suppression of metastasis. Furthermore, bioinformatics analysis and co-immunoprecipitation (Co-IP) experiments uncovered that CYP3A5 interacted with ATOH8, and the interaction, in turn, mediated in-activation in the Smad1 pathway. The combined IHC panel, including CYP3A5 and phosphorylation of Smad1, exhibited a better prognostic value for LUAD patients than any of these components individually. Taken together, CYP3A5 repressed activation of Smad1 to inhibit LUAD metastasis via interacting with ATOH8, indicating a novel potential mechanism of CYP3A5 in LUAD progression.
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Affiliation(s)
- Qixing Mao
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
| | - Lin Wang
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
- Department of Oncology, Department of Geriatric Lung Cancer Laboratory, The Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing 210009, P. R. China
| | - Yingkuan Liang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
| | - Gaochao Dong
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
| | - Wenjie Xia
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
| | - Jianzhong Hu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount SinaiNew York, New York, USA
| | - Lin Xu
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
| | - Feng Jiang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing Medical University Affiliated Cancer HospitalNanjing 210009, P. R. China
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7
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Chen L, Yang J, Wang Y, Wu N, Li X, Li J, Huang Y, Cheng J. ATOH8 overexpression inhibits the tumor progression and monocyte chemotaxis in hepatocellular carcinoma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2020; 13:2534-2543. [PMID: 33165366 PMCID: PMC7642694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE ATOH8 is reported to be associated with the progression of many tumors; however, there are remaining controversies. The aim of this study is to explore the role of ATOH8 in hepatocellular carcinoma (HCC) and its effect on monocyte chemotaxis. METHODS Bioinformatics analysis was performed based on the LIHC data in GEPIA and LinkedOmic. Fresh human liver cancer and adjacent nontumor tissue specimens were collected at the Shanghai Public Health Clinical Center. qRT-PCR was performed to determine the transcript level, and western blot analysis and ELISA were used to detect protein expression. CCK8, colony formation, wound-healing, Transwell migration and invasion assays were performed to examine cell proliferation, migration and invasion. An HCC xenograft mouse model was used to determine oncogenicity in vivo. Cell apoptosis and related markers were detected by flow cytometry. Additionally, chemotaxis was assessed by the Transwell migration assay. RESULTS ATOH8 expression is downregulated in HCC tissue and hepatoma cell lines. High expression of ATOH8 predicts a favorable prognosis. Overexpression of ATOH8 in liver cancer cells inhibits proliferation, migration and invasion in vitro, and tumor progression in nude mice. Knockdown of ATOH8 promotes proliferation of Huh7 and EMT-related proteins. Overexpression of ATOH8 increases chemosensitivity to 5-FU, which is probably caused by inhibiting the phosphorylation of AKT (Ser473). Furthermore, overexpression of ATOH8 in Huh7 reduced MCP1 to inhibit chemotactic THP-1, and promoted antitumor inflammatory cytokine (TNF-α and IFN-γ) secretion in monocytes. CONCLUSION In addition to the intrinsic oncosuppressive function of ATOH8 in the liver, ATOH8 may modulate the microenvironment to create an immune activation state. This may partly be attributed to ATOH8 inhibition of the monocyte recruitment via suppressing MCP1 expression so as to promote antitumor inflammatory cytokine secretion in monocytes.
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Affiliation(s)
- Liping Chen
- Department of Gastroenterology, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
| | - Jingmao Yang
- Department of Gastroenterology, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
| | - Yajie Wang
- Department of Gastroenterology, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
| | - Nana Wu
- Department of Gastroenterology, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
| | - Xian Li
- Department of Gastroenterology, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
| | - Jun Li
- Department of Gastroenterology, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
| | - Yangqing Huang
- Department of Liver Surgery, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
| | - Jilin Cheng
- Department of Gastroenterology, Shanghai Public Health Clinical Center, Fudan UniversityShanghai, China
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8
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Bose M, Mukherjee P. Microbe-MUC1 Crosstalk in Cancer-Associated Infections. Trends Mol Med 2020; 26:324-336. [PMID: 31753595 DOI: 10.1016/j.molmed.2019.10.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/03/2019] [Accepted: 10/08/2019] [Indexed: 02/07/2023]
Abstract
Infection-associated cancers account for ∼20% of all malignancies. Understanding the molecular mechanisms underlying infection-associated malignancies may help in developing diagnostic biomarkers and preventative vaccines against malignancy. During infection, invading microbes interact with host mucins lining the glandular epithelial cells and trigger inflammation. MUC1 is a transmembrane mucin glycoprotein that is present on the surface of almost all epithelial cells, and is known to interact with invading microbes. This interaction can trigger pro- or anti-inflammatory responses depending on the microbe and the cell type. In this review we summarize the mechanisms of microbe and MUC1 interactions, and highlight how MUC1 plays contrasting roles in different cells. We also share perspectives on future research that may support clinical advances in infection-associated cancers.
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Affiliation(s)
- Mukulika Bose
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223, USA.
| | - Pinku Mukherjee
- Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
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9
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Shear stress activates ATOH8 via autocrine VEGF promoting glycolysis dependent-survival of colorectal cancer cells in the circulation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:25. [PMID: 32000836 PMCID: PMC6993408 DOI: 10.1186/s13046-020-1533-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 01/23/2020] [Indexed: 02/07/2023]
Abstract
Background Metastasis and recurrence, wherein circulating tumour cells (CTCs) play an important role, are the leading causes of death in colorectal cancer (CRC). Metastasis-initiating CTCs manage to maintain intravascular survival under anoikis, immune attack, and importantly shear stress; however, the underlying mechanisms remain poorly understood. Methods In view of the scarcity of CTCs in the bloodstream, suspended colorectal cancer cells were flowed into the cyclic laminar shear stress (LSS) according to previous studies. Then, we detected these suspended cells with a CK8+/CD45−/DAPI+ phenotype and named them mimic circulating tumour cells (m-CTCs) for subsequent CTCs related researches. Quantitative polymerase chain reaction, western blotting, and immunofluorescence were utilised to analyse gene expression change of m-CTCs sensitive to LSS stimulation. Additionally, we examined atonal bHLH transcription factor 8 (ATOH8) expressions in CTCs among 156 CRC patients and mice by fluorescence in situ hybridisation and flow cytometry. The pro-metabolic and pro-survival functions of ATOH8 were determined by glycolysis assay, live/dead cell vitality assay, anoikis assay, and immunohistochemistry. Further, the concrete up-and-down mechanisms of m-CTC survival promotion by ATOH8 were explored. Results The m-CTCs actively responded to LSS by triggering the expression of ATOH8, a fluid mechanosensor, with executive roles in intravascular survival and metabolism plasticity. Specifically, ATOH8 was upregulated via activation of VEGFR2/AKT signalling pathway mediated by LSS induced VEGF release. ATOH8 then transcriptionally activated HK2-mediated glycolysis, thus promoting the intravascular survival of colorectal cancer cells in the circulation. Conclusions This study elucidates a novel mechanism that an LSS triggered VEGF-VEGFR2-AKT-ATOH8 signal axis mediates m-CTCs survival, thus providing a potential target for the prevention and treatment of hematogenous metastasis in CRC.
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10
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Wang J, Asante I, Baron JA, Figueiredo JC, Haile R, Joan Levine A, Newcomb PA, Templeton AS, Schumacher FR, Louie SG, Casey G, Conti DV. Genome-wide association study of circulating folate one-carbon metabolites. Genet Epidemiol 2019; 43:1030-1045. [PMID: 31502714 DOI: 10.1002/gepi.22249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 05/16/2019] [Accepted: 07/11/2019] [Indexed: 12/31/2022]
Abstract
Experimental, observational, and clinical trials support a critical role of folate one-carbon metabolism (FOCM) in colorectal cancer (CRC) development. In this report, we focus on understanding the relationship between common genetic variants and metabolites of FOCM. We conducted a genome-wide association study of FOCM biomarkers among 1,788 unaffected (without CRC) individuals of European ancestry from the Colon Cancer Family Registry. Twelve metabolites, including 5-methyltetrahydrofolate, vitamin B2 (flavin mononucleotide and riboflavin), vitamin B6 (4-pyridoxic acid, pyridoxal, and pyridoxamine), total homocysteine, methionine, S-adenosylmethionine, S-adenosylhomocysteine, cystathionine, and creatinine were measured from plasma using liquid chromatography-mass spectrometry (LC-MS) or LC-MS/MS. For each individual biomarker, we estimated genotype array-specific associations followed by a fixed-effect meta-analysis. We identified the variant rs35976024 (at 2p11.2 and intronic of ATOH8) associated with total homocysteine (p = 4.9 × 10-8 ). We found a group of six highly correlated variants on chromosome 15q14 associated with cystathionine (all p < 5 × 10-8 ), with the most significant variant rs28391580 (p = 2.8 × 10-8 ). Two variants (rs139435405 and rs149119426) on chromosome 14q13 showed significant (p < 5 × 10-8 ) associations with S-adenosylhomocysteine. These three biomarkers with significant associations are closely involved in homocysteine metabolism. Furthermore, when assessing the principal components (PCs) derived from seven individual biomarkers, we identified the variant rs12665366 (at 6p25.3 and intronic of EXOC2) associated with the first PC (p = 2.3 × 10-8 ). Our data suggest that common genetic variants may play an important role in FOCM, particularly in homocysteine metabolism.
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Affiliation(s)
- Jun Wang
- Department of Preventive Medicine, USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Isaac Asante
- Department of Clinical Pharmacy and Pharmaceutical Economics and Policy, School of Pharmacy, University of Southern California, Los Angeles, California
| | - John A Baron
- Department of Medicine, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Jane C Figueiredo
- Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
| | - Robert Haile
- Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - A Joan Levine
- Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
| | - Polly A Newcomb
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Allyson S Templeton
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Fredrick R Schumacher
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio
| | - Stan G Louie
- Department of Clinical Pharmacy and Pharmaceutical Economics and Policy, School of Pharmacy, University of Southern California, Los Angeles, California
| | - Graham Casey
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia
| | - David V Conti
- Department of Preventive Medicine, USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California
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11
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De Bastiani MA, Klamt F. Integrated transcriptomics reveals master regulators of lung adenocarcinoma and novel repositioning of drug candidates. Cancer Med 2019; 8:6717-6729. [PMID: 31503425 PMCID: PMC6825976 DOI: 10.1002/cam4.2493] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 07/18/2019] [Accepted: 07/31/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Lung adenocarcinoma is the major cause of cancer-related deaths in the world. Given this, the importance of research on its pathophysiology and therapy remains a key health issue. To assist in this endeavor, recent oncology studies are adopting Systems Biology approaches and bioinformatics to analyze and understand omics data, bringing new insights about this disease and its treatment. METHODS We used reverse engineering of transcriptomic data to reconstruct nontumorous lung reference networks, focusing on transcription factors (TFs) and their inferred target genes, referred as regulatory units or regulons. Afterwards, we used 13 case-control studies to identify TFs acting as master regulators of the disease and their regulatory units. Furthermore, the inferred activation patterns of regulons were used to evaluate patient survival and search drug candidates for repositioning. RESULTS The regulatory units under the influence of ATOH8, DACH1, EPAS1, ETV5, FOXA2, FOXM1, HOXA4, SMAD6, and UHRF1 transcription factors were consistently associated with the pathological phenotype, suggesting that they may be master regulators of lung adenocarcinoma. We also observed that the inferred activity of FOXA2, FOXM1, and UHRF1 was significantly associated with risk of death in patients. Finally, we obtained deptropine, promazine, valproic acid, azacyclonol, methotrexate, and ChemBridge ID compound 5109870 as potential candidates to revert the molecular profile leading to decreased survival. CONCLUSION Using an integrated transcriptomics approach, we identified master regulator candidates involved with the development and prognostic of lung adenocarcinoma, as well as potential drugs for repurposing.
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Affiliation(s)
- Marco Antônio De Bastiani
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.,National Institute of Science and Technology for Translational Medicine (INCT-TM), Porto Alegre, RS, Brazil
| | - Fábio Klamt
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.,National Institute of Science and Technology for Translational Medicine (INCT-TM), Porto Alegre, RS, Brazil
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12
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Divvela SSK, Nell P, Napirei M, Zaehres H, Chen J, Gerding WM, Nguyen HP, Gao S, Brand-Saberi B. bHLH Transcription Factor Math6 Antagonizes TGF-β Signalling in Reprogramming, Pluripotency and Early Cell Fate Decisions. Cells 2019; 8:cells8060529. [PMID: 31159500 PMCID: PMC6627693 DOI: 10.3390/cells8060529] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/30/2019] [Accepted: 06/01/2019] [Indexed: 12/14/2022] Open
Abstract
The basic helix-loop-helix (bHLH) transcription factor Math6 (Atonal homolog 8; Atoh8) plays a crucial role in a number of cellular processes during embryonic development, iron metabolism and tumorigenesis. We report here on its involvement in cellular reprogramming from fibroblasts to induced pluripotent stem cells, in the maintenance of pluripotency and in early fate decisions during murine development. Loss of Math6 disrupts mesenchymal-to-epithelial transition during reprogramming and primes pluripotent stem cells towards the mesendodermal fate. Math6 can thus be considered a regulator of reprogramming and pluripotent stem cell fate. Additionally, our results demonstrate the involvement of Math6 in SMAD-dependent TGF beta signalling. We furthermore monitor the presence of the Math6 protein during these developmental processes using a newly generated Math6Flag-tag mouse. Taken together, our results suggest that Math6 counteracts TGF beta signalling and, by this, affects the initiating step of cellular reprogramming, as well as the maintenance of pluripotency and early differentiation.
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Affiliation(s)
| | - Patrick Nell
- Ruhr University Bochum, Medical Faculty, Department of Anatomy and Molecular Embryology, 44801 Bochum, Germany.
- School of Life Science and Technology, Tongji University, 200092 Shanghai, China.
- Leibniz Institut für Arbeitsforschung, Technische Universität Dortmund, 44139, Dortmund, Germany.
| | - Markus Napirei
- Ruhr University Bochum, Medical Faculty, Department of Anatomy and Molecular Embryology, 44801 Bochum, Germany.
| | - Holm Zaehres
- Ruhr University Bochum, Medical Faculty, Department of Anatomy and Molecular Embryology, 44801 Bochum, Germany.
| | - Jiayu Chen
- School of Life Science and Technology, Tongji University, 200092 Shanghai, China.
| | - Wanda Maria Gerding
- Ruhr University Bochum, Medical Faculty, Department of Human Genetics, 44801 Bochum, Germany.
| | - Huu Phuc Nguyen
- Ruhr University Bochum, Medical Faculty, Department of Human Genetics, 44801 Bochum, Germany.
| | - Shaorong Gao
- School of Life Science and Technology, Tongji University, 200092 Shanghai, China.
| | - Beate Brand-Saberi
- Ruhr University Bochum, Medical Faculty, Department of Anatomy and Molecular Embryology, 44801 Bochum, Germany.
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13
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In vivo and in vitro study of co-expression of LMP1 and Cripto-1 in nasopharyngeal carcinoma. Braz J Otorhinolaryngol 2019; 86:617-625. [PMID: 31375471 PMCID: PMC9422379 DOI: 10.1016/j.bjorl.2019.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 04/07/2019] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Nasopharyngeal carcinoma, an epithelial-derived malignant tumor which because of its anatomical location and atypical early symptoms, when diagnosed invasion and metastasis often have occurred. This requires a better understanding of the development mechanism, identifying diagnostic markers, and developing new treatment strategies. OBJECTIVE To study the relationship of LMP1 and Cripto-1 in nasopharyngeal carcinoma. METHODS The expression of LMP1 and Cripto-1 in specimens obtained from nasopharyngeal carcinoma patients (n=42) and nasopharyngitis patients (n=22) were examined. The expression of LMP1 and Cripto-1 in LMP1-negative and LMP1-positive (CNE1-LMP1) cells were also examined. RESULTS The expression of LMP1 and Cripto-1 was significantly higher in nasopharyngeal carcinoma than in nasopharyngitis (p<0.05). Their expression in nasopharyngeal carcinoma with metastasis were significantly higher than that without metastasis (p<0.05), which was correlated with TNM staging (p<0.05). High Cripto-1 expression and high proliferation rate were seen in CNE1-LMP1 cells. CONCLUSIONS The expression of LMP1 and Cripto-1 in nasopharyngeal carcinoma is positively related. Their co-expression might contribute to the proliferation and metastasis of nasopharyngeal carcinoma.
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14
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Li WX, He K, Tang L, Dai SX, Li GH, Lv WW, Guo YC, An SQ, Wu GY, Liu D, Huang JF. Comprehensive tissue-specific gene set enrichment analysis and transcription factor analysis of breast cancer by integrating 14 gene expression datasets. Oncotarget 2018; 8:6775-6786. [PMID: 28036274 PMCID: PMC5351668 DOI: 10.18632/oncotarget.14286] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 12/07/2016] [Indexed: 01/04/2023] Open
Abstract
Breast cancer is the most commonly diagnosed malignancy in women. Several key genes and pathways have been proven to correlate with breast cancer pathology. This study sought to explore the differences in key transcription factors (TFs), transcriptional regulation networks and dysregulated pathways in different tissues in breast cancer. We employed 14 breast cancer datasets from NCBI-GEO and performed an integrated analysis in three different tissues including breast, blood and saliva. The results showed that there were eight genes (CEBPD, EGR1, EGR2, EGR3, FOS, FOSB, ID1 and NFIL3) down-regulated in breast tissue but up-regulated in blood tissue. Furthermore, we identified several unreported tissue-specific TFs that may contribute to breast cancer, including ATOH8, DMRT2, TBX15 and ZNF367. The dysregulation of these TFs damaged lipid metabolism, development, cell adhesion, proliferation, differentiation and metastasis processes. Among these pathways, the breast tissue showed the most serious impairment and the blood tissue showed a relatively moderate damage, whereas the saliva tissue was almost unaffected. This study could be helpful for future biomarker discovery, drug design, and therapeutic and predictive applications in breast cancers.
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Affiliation(s)
- Wen-Xing Li
- Institute of Health Sciences, Anhui University, Hefei 230601, Anhui, China.,State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China
| | - Kan He
- Center for Stem Cell and Translational Medicine, School of Life Sciences, Anhui University, Hefei 230601, Anhui, China.,Department of Biostatistics, School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
| | - Ling Tang
- Center for Stem Cell and Translational Medicine, School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
| | - Shao-Xing Dai
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, Yunnan, China
| | - Gong-Hua Li
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, Yunnan, China
| | - Wen-Wen Lv
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi-Cheng Guo
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China
| | - San-Qi An
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, Yunnan, China
| | - Guo-Ying Wu
- Center for Stem Cell and Translational Medicine, School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
| | - Dahai Liu
- Center for Stem Cell and Translational Medicine, School of Life Sciences, Anhui University, Hefei 230601, Anhui, China
| | - Jing-Fei Huang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, Yunnan, China.,KIZ-SU Joint Laboratory of Animal Models and Drug Development, College of Pharmaceutical Sciences, Soochow University, Kunming 650223, Yunnan, China.,Collaborative Innovation Center for Natural Products and Biological Drugs of Yunnan, Kunming 650223, Yunnan, China.,Chinese University of Hong Kong Joint Research Center for Bio-resources and Human Disease Mechanisms, Kunming 650223, Yunnan, China
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15
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Zhao W, Mo Y, Wang S, Midorikawa K, Ma N, Hiraku Y, Oikawa S, Huang G, Zhang Z, Murata M, Takeuchi K. Quantitation of DNA methylation in Epstein-Barr virus-associated nasopharyngeal carcinoma by bisulfite amplicon sequencing. BMC Cancer 2017; 17:489. [PMID: 28716111 PMCID: PMC5514474 DOI: 10.1186/s12885-017-3482-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 07/12/2017] [Indexed: 12/31/2022] Open
Abstract
Background Epigenetic changes, including DNA methylation, disrupt normal cell function, thus contributing to multiple steps of carcinogenesis. Nasopharyngeal carcinoma (NPC) is endemic in southern China and is highly associated with Epstein-Barr virus (EBV) infection. Significant changes of the host cell methylome are observed in EBV-associated NPC with cancer development. Epigenetic marks for NPC diagnosis are urgently needed. In order to explore DNA methylation marks, we investigated DNA methylation of candidate genes in EBV-associated nasopharyngeal carcinoma. Methods We first employed methyl-capture sequencing and cDNA microarrays to compare the genome-wide methylation profiles of seven NPC tissues and five non-cancer nasopharyngeal epithelium (NNE) tissues. We found 150 hypermethylated CpG islands spanning promoter regions and down-regulated genes. Furthermore, we quantified the methylation rates of seven candidate genes using bisulfite amplicon sequencing for nine NPC and nine NNE tissues. Results All seven candidate genes showed significantly higher methylation rates in NPC than in NNE tissues, and the ratios (NPC/NNE) were in descending order as follows: ITGA4 > RERG > ZNF671 > SHISA3 > ZNF549 > CR2 > RRAD. In particular, methylation levels of ITGA4, RERG, and ZNF671 could distinguish NPC patients from NNE subjects. Conclusions We identified the DNA methylation rates of previously unidentified NPC candidate genes. The combination of genome-wide and targeted methylation profiling by next-generation sequencers should provide useful information regarding cancer-specific aberrant methylation. Electronic supplementary material The online version of this article (doi:10.1186/s12885-017-3482-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Weilin Zhao
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan.,Department of Otorhinolaryngology, Head and Neck Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.,Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yingxi Mo
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan.,Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Present address: Department of Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Shumin Wang
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan.,Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China.,Present address: Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
| | - Kaoru Midorikawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Ning Ma
- Graduate School of Health Science, Suzuka University of Medical Science, Suzuka, Mie, Japan
| | - Yusuke Hiraku
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Shinji Oikawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Guangwu Huang
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhe Zhang
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Mariko Murata
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan.
| | - Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head and Neck Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.
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16
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Zhang H, Wang J, Yu D, Liu Y, Xue K, Zhao X. Role of Epstein-Barr Virus in the Development of Nasopharyngeal Carcinoma. Open Med (Wars) 2017; 12:171-176. [PMID: 28730175 PMCID: PMC5471915 DOI: 10.1515/med-2017-0025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 03/14/2017] [Indexed: 12/12/2022] Open
Abstract
Southern China experiences larger extent of total cancer pathologies, of which nasopharyngeal carcinoma has the highest incidence under otorhinolaryngeal malignant carcinomas. Risk factor of nasopharyngeal carcinoma varies from hereditary causes to virus infection, among which Epstein-Barr virus (EBV) infection is the mostly investigated. The study into mechanism of EBV in occurrence, development and prognosis of nasopharyngeal carcinoma has been studied for several decades. The pathophysiology in making of EBV into a cancerogen includes proteins as latent membrane protein 1 (LMPs) and nucleic acids as micro-RNAs. In this paper, we reviewed till date studies focusing on relationship between EBV and nasopharyngeal carcinoma.
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Affiliation(s)
- Hui Zhang
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, Changchun130041, China
| | - Jing Wang
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, Changchun130041, China
| | - Dan Yu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, Changchun130041, China
| | - Yan Liu
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, Changchun130041, China
| | - Kai Xue
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, Changchun130041, China
| | - Xue Zhao
- Department of Otolaryngology Head and Neck Surgery, The Second Hospital of Jilin University, Changchun130041, China
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17
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Ye M, He Y, Lin H, Yang S, Zhou Y, Zhou L, Zhong J, Lu G, Zheng J, Xue ZX, Cai ZZ. High expression of atonal homolog 8 predicts a poor clinical outcome in patients with colorectal cancer and contributes to tumor progression. Oncol Rep 2017; 37:2955-2963. [PMID: 28393252 DOI: 10.3892/or.2017.5554] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/02/2016] [Indexed: 12/16/2022] Open
Abstract
Hitherto, it has been identified that numerous basic-helix-loop-helix (bHLH) transcription factors play vital roles in tumor initiation and progression. Atonal homolog 8 (ATOH8) is a member of the bHLH family of transcription factors, which participates in embryogenesis and the development of various tissues. Several studies have demonstrated that ATOH8 is involved in the progression of malignancies; however, the effects of ATOH8 in colorectal cancer (CRC) remain unknown. The aim of the present study was to explore the expression and function of ATOH8 in CRC. The present study included 106 paired CRCs and peritumoral samples. The expression of ATOH8 was evaluated by immunohistochemistry, and the results were compared with the clinical outcomes of the patients. Furthermore, cell proliferation, cell cycle distribution, wound healing and cytotoxicity assays were performed in colon cancer cell line SW620. Immunohistochemical analyses revealed that the expression of ATOH8 in CRC tissues was significantly increased compared with the peritumoral tissues, and that the high expression of ATOH8 was associated with a high serum carcinoembryonic antigen (CEA) level and a worse overall survival. In vitro assays revealed that ATOH8 knockdown in colon cancer cells inhibited cell proliferation, induced cell cycle arrest at the S phase, and increased the percentage of apoptotic cells and sensitivity to 5-fluorouracil (5-FU). The present study suggests that ATOH8 promotes the progression of CRC and may potentially serve as a novel prognostic predictor and potential therapeutic target in CRC.
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Affiliation(s)
- Mengsi Ye
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Yun He
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Hao Lin
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Shouxing Yang
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Yuhui Zhou
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Lingling Zhou
- Department of Pathology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Jinwei Zhong
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Guangrong Lu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Jihang Zheng
- Department of General Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhan-Xiong Xue
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhen-Zhai Cai
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Lucheng, Wenzhou, Zhejiang 325000, P.R. China
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