1
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Zhang L, Zhang Y, Yu F, Li X, Gao H, Li P. The circRNA-miRNA/RBP regulatory network in myocardial infarction. Front Pharmacol 2022; 13:941123. [PMID: 35924059 PMCID: PMC9340152 DOI: 10.3389/fphar.2022.941123] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
Myocardial infarction (MI) is a serious heart disease that causes high mortality rate worldwide. Noncoding RNAs are widely involved in the pathogenesis of MI. Circular RNAs (circRNAs) are recently validated to be crucial modulators of MI. CircRNAs are circularized RNAs with covalently closed loops, which make them stable under various conditions. CircRNAs can function by different mechanisms, such as serving as sponges of microRNAs (miRNAs) and RNA-binding proteins (RBPs), regulating mRNA transcription, and encoding peptides. Among these mechanisms, sponging miRNAs/RBPs is the main pathway. In this paper, we systematically review the current knowledge on the properties and action modes of circRNAs, elaborate on the roles of the circRNA-miRNA/RBP network in MI, and explore the value of circRNAs in MI diagnosis and clinical therapies. CircRNAs are widely involved in MI. CircRNAs have many advantages, such as stability, specificity, and wide distribution, which imply that circRNAs have a great potential to act as biomarkers for MI diagnosis and prognosis.
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Affiliation(s)
- Lei Zhang
- *Correspondence: Lei Zhang, ; Peifeng Li,
| | | | | | | | | | - Peifeng Li
- *Correspondence: Lei Zhang, ; Peifeng Li,
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2
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Chen L, Liu Q, Liu Z, Li H, Liu X, Yu H. EGF Protects Epithelial Cells from Barrier Damage in Chronic Rhinosinusitis with Nasal Polyps. J Inflamm Res 2022; 15:439-450. [PMID: 35082512 PMCID: PMC8784255 DOI: 10.2147/jir.s345664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022] Open
Affiliation(s)
- Le Chen
- Department of Otolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, People’s Republic of China
- Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumour, Chinese Academy of Medical Sciences, 2018RU003, Shanghai, People's Republlc of China
| | - Quan Liu
- Department of Otolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, People’s Republic of China
- Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumour, Chinese Academy of Medical Sciences, 2018RU003, Shanghai, People's Republlc of China
| | - Zhuofu Liu
- Department of Otolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, People’s Republic of China
- Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumour, Chinese Academy of Medical Sciences, 2018RU003, Shanghai, People's Republlc of China
| | - Han Li
- Department of Otolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, People’s Republic of China
- Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumour, Chinese Academy of Medical Sciences, 2018RU003, Shanghai, People's Republlc of China
| | - Xiang Liu
- Department of Otolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, People’s Republic of China
- Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumour, Chinese Academy of Medical Sciences, 2018RU003, Shanghai, People's Republlc of China
| | - Hongmeng Yu
- Department of Otolaryngology, Eye & ENT Hospital, Fudan University, Shanghai, 200031, People’s Republic of China
- Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumour, Chinese Academy of Medical Sciences, 2018RU003, Shanghai, People's Republlc of China
- Correspondence: Hongmeng Yu; Xiang Liu Email ;
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3
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Ma Y, Schröder DC, Nenkov M, Rizwan MN, Abubrig M, Sonnemann J, Murrieta-Coxca JM, Morales-Prieto DM, Westermann M, Gaßler N, Chen Y. Epithelial Membrane Protein 2 Suppresses Non-Small Cell Lung Cancer Cell Growth by Inhibition of MAPK Pathway. Int J Mol Sci 2021; 22:2944. [PMID: 33799364 PMCID: PMC7999101 DOI: 10.3390/ijms22062944] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 02/07/2023] Open
Abstract
Epithelial membrane proteins (EMP1-3) are involved in epithelial differentiation and carcinogenesis. Dysregulated expression of EMP2 was observed in various cancers, but its role in human lung cancer is not yet clarified. In this study, we analyzed the expression of EMP1-3 and investigated the biological function of EMP2 in non-small cell lung cancer (NSCLC). The results showed that lower expression of EMP1 was significantly correlated with tumor size in primary lung tumors (p = 0.004). Overexpression of EMP2 suppressed tumor cell growth, migration, and invasion, resulting in a G1 cell cycle arrest, with knockdown of EMP2 leading to enhanced cell migration, related to MAPK pathway alterations and disruption of cell cycle regulatory genes. Exosomes isolated from transfected cells were taken up by tumor cells, carrying EMP2-downregulated microRNAs (miRNAs) which participated in regulation of the tumor microenvironment. Our data suggest that decreased EMP1 expression is significantly related to increased tumor size in NSCLC. EMP2 suppresses NSCLC cell growth mainly by inhibiting the MAPK pathway. EMP2 might further affect the tumor microenvironment by regulating tumor microenvironment-associated miRNAs.
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Affiliation(s)
- Yunxia Ma
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (Y.M.); (D.C.S.); (M.N.); (M.N.R.); (M.A.); (N.G.)
| | - Desiree Charlotte Schröder
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (Y.M.); (D.C.S.); (M.N.); (M.N.R.); (M.A.); (N.G.)
| | - Miljana Nenkov
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (Y.M.); (D.C.S.); (M.N.); (M.N.R.); (M.A.); (N.G.)
| | - Maryam Noor Rizwan
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (Y.M.); (D.C.S.); (M.N.); (M.N.R.); (M.A.); (N.G.)
| | - Mohamed Abubrig
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (Y.M.); (D.C.S.); (M.N.); (M.N.R.); (M.A.); (N.G.)
| | - Jürgen Sonnemann
- Department of Pediatric Hematology and Oncology, Children’s Clinic, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany;
| | - José M. Murrieta-Coxca
- Placenta-Labor, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany; (J.M.M.-C.); (D.M.M.-P.)
| | - Diana M. Morales-Prieto
- Placenta-Labor, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany; (J.M.M.-C.); (D.M.M.-P.)
| | - Martin Westermann
- Electron Microscopy Center, Jena University Hospital, Ziegelmühlenweg 1, 07743 Jena, Germany;
| | - Nikolaus Gaßler
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (Y.M.); (D.C.S.); (M.N.); (M.N.R.); (M.A.); (N.G.)
| | - Yuan Chen
- Section Pathology of the Institute of Forensic Medicine, Jena University Hospital, Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (Y.M.); (D.C.S.); (M.N.); (M.N.R.); (M.A.); (N.G.)
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4
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Xu X, Ong YK, Wang DY. Novel findings in immunopathophysiology of chronic rhinosinusitis and their role in a model of precision medicine. Allergy 2020; 75:769-780. [PMID: 31512248 DOI: 10.1111/all.14044] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/26/2019] [Accepted: 09/01/2019] [Indexed: 02/06/2023]
Abstract
Our understanding of the pathophysiology of chronic rhinosinusitis (CRS) is continuously evolving. The traditional description of CRS in terms of two phenotypes based on the presence or absence of nasal polyps belies the underlying intricate immunopathophysiological processes responsible for this condition. CRS is being increasingly recognized as a disease spectrum encompassing a range of inflammatory states in the sinonasal cavity, with non-type 2 inflammatory disease on one end, type 2 inflammatory, eosinophil-heavy disease on the other and an overlap of both in different proportions in between. Abundance in research on the immune mechanisms of CRS has revealed various new endotypes that hold promise as biomarkers for the development of targeted therapies in severe, uncontrolled CRS. The introduction of precision medicine to manage this chronic, complex condition is a step forward in providing individualized care for all patients with CRS. In this review, the latest research on the pathophysiology of CRS with a focus on potential novel biomarkers and treatment options over the last 2 years are summarized and integrated into a suggested model of precision medicine in CRS.
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Affiliation(s)
- Xinni Xu
- Department of Otolaryngology‐Head and Neck Surgery National University Hospital System (NUHS) Singapore Singapore
| | - Yew Kwang Ong
- Department of Otolaryngology‐Head and Neck Surgery National University Hospital System (NUHS) Singapore Singapore
| | - De Yun Wang
- Department of Otolaryngology Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
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5
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Laulajainen-Hongisto A, Toppila-Salmi SK, Luukkainen A, Kern R. Airway Epithelial Dynamics in Allergy and Related Chronic Inflammatory Airway Diseases. Front Cell Dev Biol 2020; 8:204. [PMID: 32292784 PMCID: PMC7118214 DOI: 10.3389/fcell.2020.00204] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Allergic rhinitis, chronic rhinosinusitis, and asthma are highly prevalent, multifactorial chronic airway diseases. Several environmental and genetic factors affect airway epithelial dynamics leading to activation of inflammatory mechanisms in the airways. This review links environmental factors to host epithelial immunity in airway diseases. Understanding altered homeostasis of the airway epithelium might provide important targets for diagnostics and therapy of chronic airway diseases.
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Affiliation(s)
- Anu Laulajainen-Hongisto
- Department of Otorhinolaryngology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Laboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Sanna Katriina Toppila-Salmi
- Haartman Institute, Medicum, University of Helsinki, Helsinki, Finland.,Skin and Allergy Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Annika Luukkainen
- Haartman Institute, Medicum, University of Helsinki, Helsinki, Finland
| | - Robert Kern
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
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6
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Zhao B, Li G, Peng J, Ren L, Lei L, Ye H, Wang Z, Zhao S. CircMACF1 Attenuates Acute Myocardial Infarction Through miR-500b-5p-EMP1 Axis. J Cardiovasc Transl Res 2020; 14:161-172. [PMID: 32162171 DOI: 10.1007/s12265-020-09976-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 02/21/2020] [Indexed: 12/30/2022]
Abstract
It is widely accepted that circular RNA (circRNA) plays an important role in cardiovascular diseases. Therefore, this experiment aimed to investigate the pathogenesis of circMACF1 in acute myocardial infarction (AMI). qRT-PCR and immunoblotting were used to detect the expression levels of circMACF1, miR-500b-5p, and epithelial membrane protein 1 (EMP1). The role of circMACF1, miR-500b-5p, and EMP1 in cardiomyocyte apoptosis was assessed using annexin V-FITC/PI. Echocardiographic assessment, serum creatine kinase MB (CK-MB) and lactate dehydrogenase (LDH), myocardial infarct size, and TUNEL staining were applied in our research. In the MI group, the expression levels of circMACF1 and EMP1 were decreased with the increasing expression level of miR-500b-5p. CircMACF1 upregulated the expression of EMP1 as a sponge of miR-500b-5p, and circMACF1 was a direct target of miR-500b-5p. CircMACF1 impaired the progression of AMI by modulating the miR-500b-5p/EMP1 axis. CircMACF1 may be a potential therapeutic target for treating AMI. Graphical Abstract CircMACF1 upregulated EMP1 expression by sponge miR-500b-5p.
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Affiliation(s)
- Bo Zhao
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China
| | - Guangping Li
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China.
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, People's Republic of China.
| | - Jianjun Peng
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China
| | - Lihui Ren
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China
| | - Licheng Lei
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China
| | - Huiming Ye
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China
| | - Zuoyan Wang
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China
| | - Sheng Zhao
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Haidian District, Beijing, 100038, People's Republic of China
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7
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Busch M, Klein S, Große-Kreul J, Scheiner O, Metz K, Stephan H, Dünker N. p53, miR-34a and EMP1-Newly Identified Targets of TFF3 Signaling in Y79 Retinoblastoma Cells. Int J Mol Sci 2019; 20:ijms20174129. [PMID: 31450568 PMCID: PMC6747266 DOI: 10.3390/ijms20174129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 12/22/2022] Open
Abstract
Trefoil factor family peptide 3 (TFF3) is supposed to have tumor suppressive functions in retinoblastoma (RB), but the functional pathway is not completely understood. In the study presented, we investigated the downstream pathway of TFF3 signaling in Y79 RB cells. Results from pG13-luciferase reporter assays and western blot analyses indicate induced p53 activity with an upregulation of miR-34a after TFF3 overexpression. Expression levels of the predicted miR-34a target epithelial membrane protein 1 (EMP1) are reduced after TFF3 overexpression. As revealed by WST-1 assay, BrdU, and DAPI cell counts viability and proliferation of Y79 cells significantly decrease following EMP1 knockdown, while apoptosis levels significantly increase. Opposite effects on Y79 cells’ growth could be shown after EMP1 overexpression. Caspase assays showed that EMP1 induced apoptosis after overexpression is at least partially caspase-3/7 dependent. Colony formation and soft agarose assays, testing for anchorage independent growth, revealed that EMP1 overexpressing Y79 cells have a significantly higher ability to form colonies. In in ovo chicken chorioallantoic membrane (CAM) assays inoculated EMP1 overexpressing Y79 cells form significantly larger CAM tumors. Moreover, miR-34a overexpression increases sensitivity of Y79 cells towards RB chemotherapeutics, however, without involvement of EMP1. In summary, the TFF3 signaling pathway in Y79 RB cells involves the activation of p53 with downstream induction of miR-34a and subsequent inhibition of EMP1.
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Affiliation(s)
- Maike Busch
- Institute of Anatomy II, Department of Neuroanatomy, Medical Faculty, University of Duisburg-Essen, 45122 Essen, Germany.
| | - Stefan Klein
- Institute of Anatomy II, Department of Neuroanatomy, Medical Faculty, University of Duisburg-Essen, 45122 Essen, Germany
| | - Jan Große-Kreul
- Institute of Anatomy II, Department of Neuroanatomy, Medical Faculty, University of Duisburg-Essen, 45122 Essen, Germany
| | - Oliver Scheiner
- Institute of Anatomy II, Department of Neuroanatomy, Medical Faculty, University of Duisburg-Essen, 45122 Essen, Germany
| | - Klaus Metz
- Institute of Pathology, Medical Faculty, University of Duisburg-Essen, 45122 Essen, Germany
| | - Harald Stephan
- Division of Haematology and Oncology, Children's Hospital, University of Duisburg-Essen, 45122 Essen, Germany
| | - Nicole Dünker
- Institute of Anatomy II, Department of Neuroanatomy, Medical Faculty, University of Duisburg-Essen, 45122 Essen, Germany
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8
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Larson ED, Magno JPM, Steritz MJ, Llanes EGDV, Cardwell J, Pedro M, Roberts TB, Einarsdottir E, Rosanes RAQ, Greenlee C, Santos RAP, Yousaf A, Streubel SO, Santos ATR, Ruiz AG, Lagrana-Villagracia SM, Ray D, Yarza TKL, Scholes MA, Anderson CB, Acharya A, Gubbels SP, Bamshad MJ, Cass SP, Lee NR, Shaikh RS, Nickerson DA, Mohlke KL, Prager JD, Cruz TLG, Yoon PJ, Abes GT, Schwartz DA, Chan AL, Wine TM, Cutiongco-de la Paz EM, Friedman N, Kechris K, Kere J, Leal SM, Yang IV, Patel JA, Tantoco MLC, Riazuddin S, Chan KH, Mattila PS, Reyes-Quintos MRT, Ahmed ZM, Jenkins HA, Chonmaitree T, Hafrén L, Chiong CM, Santos-Cortez RLP. A2ML1 and otitis media: novel variants, differential expression, and relevant pathways. Hum Mutat 2019; 40:1156-1171. [PMID: 31009165 DOI: 10.1002/humu.23769] [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: 10/30/2018] [Revised: 02/26/2019] [Accepted: 04/18/2019] [Indexed: 12/16/2022]
Abstract
A genetic basis for otitis media is established, however, the role of rare variants in disease etiology is largely unknown. Previously a duplication variant within A2ML1 was identified as a significant risk factor for otitis media in an indigenous Filipino population and in US children. In this report exome and Sanger sequencing was performed using DNA samples from the indigenous Filipino population, Filipino cochlear implantees, US probands, Finnish, and Pakistani families with otitis media. Sixteen novel, damaging A2ML1 variants identified in otitis media patients were rare or low-frequency in population-matched controls. In the indigenous population, both gingivitis and A2ML1 variants including the known duplication variant and the novel splice variant c.4061 + 1 G>C were independently associated with otitis media. Sequencing of salivary RNA samples from indigenous Filipinos demonstrated lower A2ML1 expression according to the carriage of A2ML1 variants. Sequencing of additional salivary RNA samples from US patients with otitis media revealed differentially expressed genes that are highly correlated with A2ML1 expression levels. In particular, RND3 is upregulated in both A2ML1 variant carriers and high-A2ML1 expressors. These findings support a role for A2ML1 in keratinocyte differentiation within the middle ear as part of otitis media pathology and the potential application of ROCK inhibition in otitis media.
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Affiliation(s)
- Eric D Larson
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Jose Pedrito M Magno
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines
| | - Matthew J Steritz
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Erasmo Gonzalo D V Llanes
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Jonathan Cardwell
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Melquiadesa Pedro
- Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Tori Bootpetch Roberts
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Elisabet Einarsdottir
- Folkhälsan Institute of Genetics and Molecular Neurology Research Program, University of Helsinki, Helsinki, Finland.,Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Rose Anne Q Rosanes
- Department of Community Dentistry, College of Dentistry, University of the Philippines Manila, Manila, Philippines
| | - Christopher Greenlee
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | | | - Ayesha Yousaf
- Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Sven-Olrik Streubel
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | | | - Amanda G Ruiz
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | - Sheryl Mae Lagrana-Villagracia
- Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Dylan Ray
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Talitha Karisse L Yarza
- Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines.,Newborn Hearing Screening Reference Center, University of the Philippines Manila - National Institutes of Health (NIH), Manila, Philippines
| | - Melissa A Scholes
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | - Catherine B Anderson
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Anushree Acharya
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | | | - Samuel P Gubbels
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Michael J Bamshad
- Department of Genome Sciences, University of Washington, Seattle, Washington
| | - Stephen P Cass
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Nanette R Lee
- USC-Office of Population Studies Foundation, Inc. and Department of Anthropology, Sociology and History, University of San Carlos, Cebu, Philippines
| | - Rehan S Shaikh
- Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Deborah A Nickerson
- Department of Genome Sciences, University of Washington, Seattle, Washington
| | - Karen L Mohlke
- Department of Genetics, University of North Carolina, Chapel Hill, North Carolina
| | - Jeremy D Prager
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | - Teresa Luisa G Cruz
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Patricia J Yoon
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | - Generoso T Abes
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - David A Schwartz
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Abner L Chan
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Todd M Wine
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | - Eva Maria Cutiongco-de la Paz
- Philippine Genome Center, University of the Philippines, Quezon City, Philippines.,University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Norman Friedman
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | - Katerina Kechris
- Department of Biostatistics and Bioinformatics, Colorado School of Public Health, Aurora, Colorado
| | - Juha Kere
- Folkhälsan Institute of Genetics and Molecular Neurology Research Program, University of Helsinki, Helsinki, Finland.,Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Suzanne M Leal
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Ivana V Yang
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Janak A Patel
- Division of Infectious Diseases, Department of Pediatrics, University of Texas Medical Branch, Galveston, Texas
| | - Ma Leah C Tantoco
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Saima Riazuddin
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Kenny H Chan
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Department of Pediatric Otolaryngology, Children's Hospital Colorado, Aurora, Colorado
| | - Petri S Mattila
- Department of Otorhinolaryngology, Head & Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Maria Rina T Reyes-Quintos
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines.,Newborn Hearing Screening Reference Center, University of the Philippines Manila - National Institutes of Health (NIH), Manila, Philippines.,University of the Philippines Manila - National Institutes of Health, Manila, Philippines
| | - Zubair M Ahmed
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Herman A Jenkins
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado
| | - Tasnee Chonmaitree
- Division of Infectious Diseases, Department of Pediatrics, University of Texas Medical Branch, Galveston, Texas
| | - Lena Hafrén
- Department of Otorhinolaryngology, Head & Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Charlotte M Chiong
- Department of Otorhinolaryngology, University of the Philippines Manila College of Medicine - Philippine General Hospital, Manila, Philippines.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines.,Newborn Hearing Screening Reference Center, University of the Philippines Manila - National Institutes of Health (NIH), Manila, Philippines
| | - Regie Lyn P Santos-Cortez
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.,Philippine National Ear Institute, University of the Philippines Manila - National Institutes of Health, Manila, Philippines.,Center for Children's Surgery, Children's Hospital Colorado, Aurora, Colorado
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Xiaohua D, Jun Z, Huiru Z, Xiaoli L, Yanni L, Guanhua W, Yan Y. [Construction of epithelial membrane protein 1 eukaryotic expression vector and its influence on migration and invasion of human oral tongue squamous carcinoma cells]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2016; 34:398-403. [PMID: 28317360 DOI: 10.7518/hxkq.2016.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE This study aimed to construct a eukaryotic expression vector pEGFP-N1-EMP1 of epithelial mem-brane protein 1 (EMP1) and investigate its influence on migration and invasion of human oral tongue squamous carcinoma cells. METHODS The human EMP1 gene was amplified by reverse transcription polymerase chain reaction and then ligated into the pEGFP-N1 vector by double restriction endonuclease digestion to construct pEGFP-N1-EMP1 recombinant plasmid. After sequencing identification, pEGFP-N1-EMP1 recombinant plasmid and pEGFP-N1 plasmid were transfected into human oral tongue squamous carcinoma Tb3.1 cell line. The expression of green fluorescent protein in cells was observed after transfection using an inverted fluorescence microscope. The overexpression of EMP1 mRNA was identified at 24, 48, and 72 h after transfection by real-time fluorescence quantitative polymerase chain reaction. The effect of EMP1 overexpression on migration and invasion of Tb3.1 cells was detected by Transwell assay. RESULTS The full-length EMP1 gene sequence was successfully obtained. Sequence analysis showed that the EMP1 gene was inserted into the pEGFP-N1 vector correctly. Green fluorescence was observed in the transfected cells under fluorescence microscopy. The results of real-time fluorescence quantitative polymerase chain reaction indicated that the expression of EMP1 at 24 h after pEGFP-N1-EMP1 transfection was significantly higher than the other groups. Transwell assays indicated that overexpression of the EMP1 gene could significantly inhibit the migration and invasion ability of Tb3.1 cells. CONCLUSIONS The eukaryotic expression vector of EMP1 was successfully constructed, and EMP1 overexpression was confirmed to inhibit the migration and inva-sion of oral tongue squamous carcinoma cells in vitro. This study laid a foundation for further investigation on the influence of the EMP1 gene on the metastasis of oral tongue squamous carcinoma and its molecular mechanism.
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Affiliation(s)
- Dai Xiaohua
- Research Center, Tianjin Stomatological Hospital, Stomatological Hospital of Nankai University, Tianjin 300041, China
| | - Zhang Jun
- Dept. of Oral and Maxillofacial Surgery, Tianjin Stomatological Hospital, Stomatological Hospital of Nankai University, Tianjin 300041, China
| | - Zou Huiru
- Research Center, Tianjin Stomatological Hospital, Stomatological Hospital of Nankai University, Tianjin 300041, China
| | - Lian Xiaoli
- Research Center, Tianjin Stomatological Hospital, Stomatological Hospital of Nankai University, Tianjin 300041, China
| | - Li Yanni
- Research Center, Tianjin Stomatological Hospital, Stomatological Hospital of Nankai University, Tianjin 300041, China
| | - Wang Guanhua
- Research Center, Tianjin Stomatological Hospital, Stomatological Hospital of Nankai University, Tianjin 300041, China
| | - Yan Yan
- Research Center, Tianjin Stomatological Hospital, Stomatological Hospital of Nankai University, Tianjin 300041, China
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Toppila-Salmi S, van Drunen CM, Fokkens WJ, Golebski K, Mattila P, Joenvaara S, Renkonen J, Renkonen R. Molecular mechanisms of nasal epithelium in rhinitis and rhinosinusitis. Curr Allergy Asthma Rep 2015; 15:495. [PMID: 25504259 PMCID: PMC4262789 DOI: 10.1007/s11882-014-0495-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Allergic rhinitis, nonallergic rhinitis, and chronic rhinosinusitis are multifactorial upper airway diseases with high prevalence. Several genetic and environmental factors are proposed to predispose to the pathogenesis of the inflammatory upper airway diseases. Still, the molecular mechanisms leading toward the onset and progression of upper airway diseases are largely unknown. The upper airway epithelium has an important role in sensing the environment and regulating the inhaled air. As such, it links environmental insults to the host immunity. Human sinonasal epithelium serves as an excellent target for observing induced early-phase events, in vivo, and with a systems biological perspective. Actually, increasing number of investigations have provided evidence that altered homeostasis in the sinonasal epithelium might be important in the chronic upper airway inflammation.
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Affiliation(s)
- Sanna Toppila-Salmi
- Haartman Institute, University of Helsinki, Haartmaninkatu 3, P.O. Box 21, 00014, Helsinki, Finland,
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Wang DY, Li Y, Yan Y, Li C, Shi L. Upper airway stem cells: understanding the nose and role for future cell therapy. Curr Allergy Asthma Rep 2015; 15:490. [PMID: 25430951 PMCID: PMC7088825 DOI: 10.1007/s11882-014-0490-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The nose together with the paranasal sinuses has an approximate surface area of 100 to 200 cm(2) in adults, which is lined with pseudostratified columnar ciliated epithelium. It serves several important physiological functions such as conditioning and filtration of the inspired air and the provision of end organ for the sense of smell. It is also a physical and immunological barrier as it is the first site of interaction between the host tissue and foreign invaders (viruses, bacteria, and allergens). Our understanding of the complex cellular events occurring in response to inhaled agents during the development of common airway diseases has been significantly enhanced by the current status of in vivo and in vitro nasal experimental models. This will allow the development of novel therapeutic strategies designed to improve the physiological and immune defense functions of the nasal epithelium, as well as novel therapies for other common nasal diseases.
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Affiliation(s)
- De-Yun Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 1E Kent Ridge Road, Singapore, 119228 Singapore
| | - Yingying Li
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 1E Kent Ridge Road, Singapore, 119228 Singapore
| | - Yan Yan
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 1E Kent Ridge Road, Singapore, 119228 Singapore
| | - Chunwei Li
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 1E Kent Ridge Road, Singapore, 119228 Singapore
| | - Li Shi
- Department of Otolaryngology, Qilu Hospital, Shandong University, 107 Wenhua West Road, Jinan, Shandong 250012 People’s Republic of China
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The role of entrapped cilia on the formation of lacrimal ductular cysts. Jpn J Ophthalmol 2014; 59:81-5. [PMID: 25429982 DOI: 10.1007/s10384-014-0360-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 10/14/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE We sought to describe the histopathologic features of lacrimal ductular cysts with or without inflammation and speculate on the role of cilia in their pathogenesis. MATERIALS AND METHODS A retrospective study of 15 patients referred for lateral canthal subconjunctival cysts from 2001 to 2012 was conducted. All patients underwent cyst removal and a total histopathological examination was done. Patients were classified into 2 groups and analyzed according to their clinical and histopathologic characteristics. RESULTS Fourteen showed unilateral disease and one had bilateral disease, with a mean age of 42.8 years. Six patients had mild discomfort or no symptoms, and the remaining 9 of 15 patients presented with a symptomatic mass with conjunctival discharge and injection. Two layers of ductal epithelium constituted the whole wall of the cyst in the seven non-inflammatory cysts, three of which showed cilia in the lumen. The presence of stratified columnar epithelium with goblet cells was a peculiar feature in the lining of the nine inflammatory cases, seven of which showed cilia shafts with inflammatory cells and concrete material in the lumen. Pilosebaceous units were not evident in any of the specimens on pathologic examination. CONCLUSION Cilia entrapped in the lacrimal ductule may play a role in the formation of lacrimal ductular cysts with or without inflammation. Cilia falling from the eyelid may be caught in the conjunctival fornix then shift toward the horizontal lacrimal ductule in the lateral canthus. It may then serve as a nidus to provoke lacrimal ductular inflammation or cyst formation.
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Sun GG, Wang YD, Cui DW, Cheng YJ, Hu WN. Epithelial membrane protein 1 negatively regulates cell growth and metastasis in colorectal carcinoma. World J Gastroenterol 2014; 20:4001-4010. [PMID: 24744589 PMCID: PMC3983455 DOI: 10.3748/wjg.v20.i14.4001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 11/08/2013] [Accepted: 02/20/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the expression and function of epithelial membrane protein 1 (EMP1) in colorectal carcinoma.
METHODS: Colorectal samples were taken from cancer lesions and adjacent normal tissue in colorectal cancer patients immediately after endoscopic biopsy. A portion of the sample was either fixed in 4% paraformaldehyde and embedded in paraffin for immunohistochemistry or stored in liquid nitrogen for Western blot. In order to determine protein expression of EMP1 in colorectal cancer (n = 63) and normal tissue (n = 31), semi-quantitative immunohistochemistry and Western blot were utilized. For in vitro studies, the human colorectal cancer cell line SW-480 was maintained in RPMI-1640 medium supplemented with 10% fetal bovine serum. Recombinant lentivirus mediated overexpression of EMP1 in SW-480 cells was quantified by real-time reverse transcription-polymerase chain reaction and Western blot. Control SW-480 cells were transfected with an empty vector. To further study the effect of EMP1 overexpression in SW-480 cells, cell proliferation, apoptosis, migration and invasion assays were conducted.
RESULTS: Expression of EMP1 was significantly lower in colorectal cancer tissue than in normal tissue using both immunohistochemistry (39.7% vs 90.3% of tissues, P < 0.05) and Western blot (0.126 ± 0.022 vs 0.632 ± 0.053, P < 0.05). The level of EMP1 protein expression was not correlated with gender, age, or tumor location. Decreased expression of EMP1 was significantly correlated with T stage, lymph node metastasis, clinic stage, and histological grade in patients with colorectal cancer (P < 0.05). According to Kaplan-Meier analysis, low EMP1 expression correlated significantly with poor overall five-year survival (34.2% vs 64.0% survival, P < 0.05). SW-480 cells transfected with EMP1 had a lower survival fraction, higher cell apoptosis (12.1% ± 1.3% vs 3.1% ± 0.6%, P < 0.05), a significant decrease in migration and invasion (124.0 ± 17.0 and 87.0 ± 12.0, respectively vs 213.0 ± 29.0 and 178.0 ± 21.0, respectively, P < 0.05), higher caspase-9 (0.635 ± 0.063 vs 0.315 ± 0.032, P < 0.05), and lower VEGFC protein expression (0.229 ± 0.021 vs 0.519 ± 0.055, P < 0.05) relative to cells not transfected with EMP1.
CONCLUSION: Low EMP1 expression in colorectal cancer is associated with increased disease severity, suggesting that EMP1 may be a negative regulator of colorectal cancer.
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