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Steinbach A, Kun J, Urbán P, Palkovics T, Polgár B, Schneider G. Molecular Responses of the Eukaryotic Cell Line INT407 on the Internalized Campylobacter jejuni-The Other Side of the Coin. Pathogens 2024; 13:386. [PMID: 38787238 PMCID: PMC11124400 DOI: 10.3390/pathogens13050386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 04/21/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
Campylobacter jejuni is a zoonotic bacterium with the capacity to invade the epithelial cells during the pathogenic process. Several bacterial factors have been identified to contribute to this process, but our knowledge is still very limited about the response of the host. To reveal the major routes of this response, a whole-transcriptome analysis (WTA) was performed where gene expressions were compared between the 1st and the 3rd hours of internalization in INT407 epithelial cells. From the 41,769 human genes tested, altogether, 19,060 genes were shown through WTA to be influenced to different extents. The genes and regulation factors of transcription (296/1052; 28%), signal transduction (215/1052; 21%), apoptosis (153/1052; 15%), immune responses (97/1052; 9%), transmembrane transport (64/1052; 6%), cell-cell signaling (32/1052; 3%), cell-cell adhesions (29/1052; 3%), and carbohydrate metabolism (28/1052; 3%) were the most affected biological functions. A striking feature of the gene expression of this stage of the internalization process is the activation of both immune functions and apoptosis, which convincingly outlines that the invaded cell faces a choice between death and survival. The seemingly balanced status quo between the invader and the host is the result of a complex process that also affects genes known to be associated with postinfectious pathological conditions. The upregulation of TLR3 (3.79×) and CD36 (2.73×), two general tumor markers, and SERPINEB9 (11.37×), FNDC1 (7.58×), and TACR2 (8.84×), three factors of tumorigenesis, confirms the wider pathological significance of this bacterium.
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Affiliation(s)
- Anita Steinbach
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, 7624 Pécs, Hungary; (A.S.); (T.P.); (B.P.)
| | - József Kun
- Hungarian Centre for Genomics and Bioinformatics, Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (J.K.); (P.U.)
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Péter Urbán
- Hungarian Centre for Genomics and Bioinformatics, Szentágothai Research Centre, University of Pécs, 7624 Pécs, Hungary; (J.K.); (P.U.)
| | - Tamás Palkovics
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, 7624 Pécs, Hungary; (A.S.); (T.P.); (B.P.)
| | - Beáta Polgár
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, 7624 Pécs, Hungary; (A.S.); (T.P.); (B.P.)
| | - György Schneider
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, 7624 Pécs, Hungary; (A.S.); (T.P.); (B.P.)
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Kumar Murmu A, Pal A, Debnath M, Chakraborty A, Pal S, Banerjee S, Pal A, Ghosh N, Karmakar U, Samanta R. Role of mucin 2 gene for growth in Anas platyrhynchos: a novel report. Front Vet Sci 2023; 10:1089451. [PMID: 38026626 PMCID: PMC10666069 DOI: 10.3389/fvets.2023.1089451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 07/17/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The mucin gene is expressed in the mucous membrane of the inner layer of the internal organs. Intestinalmucin 2 (MUC2), amajor gel-formingmucin, represents a primary barrier component of mucus layers. Materials and methods This is the first report on the role of mucin genes in growth traits in animals. In this study, we randomly studied Bengal ducks (Anas platyrhynchos) reared from day old to 10 weeks of age under an organized farm and studied the growth parameters as well as body weight and average daily body weight gain. Result and discussion We characterized the mucin gene for Bengal ducks and observed glycosylation and EGF1 (EGF-like domain signature) as important domains for growth traits in ducks. We observed a better expression profile for the mucin gene in high-growing ducks in comparison to that of low-growing ducks with real-time PCR. Hence, the mucin gene may be employed as a marker for growth traits.
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Affiliation(s)
- Anuj Kumar Murmu
- Department of Livestock Production and Management, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
| | - Aruna Pal
- Department of Livestock Farm Complex, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
| | - Manti Debnath
- Department of Livestock Farm Complex, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
| | - Argha Chakraborty
- Department of Livestock Farm Complex, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
| | - Subhamoy Pal
- Department of Animal Science, Visva-Bharati University, Santiniketan, West Bengal, India
| | - Samiddha Banerjee
- Department of Livestock Farm Complex, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
| | - Abantika Pal
- Department of Computer Science, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
- University of California, San Francisco, San Francisco, CA, United States
| | - Nilotpal Ghosh
- Department of Livestock Production and Management, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
| | - Utpal Karmakar
- Department of Animal Resource Development, Government of West Bengal, Kolkata, India
| | - Rajarshi Samanta
- Department of Livestock Production and Management, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
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Ramos Meyers G, Samouda H, Bohn T. Short Chain Fatty Acid Metabolism in Relation to Gut Microbiota and Genetic Variability. Nutrients 2022; 14:5361. [PMID: 36558520 PMCID: PMC9788597 DOI: 10.3390/nu14245361] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
It is widely accepted that the gut microbiota plays a significant role in modulating inflammatory and immune responses of their host. In recent years, the host-microbiota interface has gained relevance in understanding the development of many non-communicable chronic conditions, including cardiovascular disease, cancer, autoimmunity and neurodegeneration. Importantly, dietary fibre (DF) and associated compounds digested by the microbiota and their resulting metabolites, especially short-chain fatty acids (SCFA), were significantly associated with health beneficial effects, such as via proposed anti-inflammatory mechanisms. However, SCFA metabolic pathways are not fully understood. Major steps include production of SCFA by microbiota, uptake in the colonic epithelium, first-pass effects at the liver, followed by biodistribution and metabolism at the host's cellular level. As dietary patterns do not affect all individuals equally, the host genetic makeup may play a role in the metabolic fate of these metabolites, in addition to other factors that might influence the microbiota, such as age, birth through caesarean, medication intake, alcohol and tobacco consumption, pathogen exposure and physical activity. In this article, we review the metabolic pathways of DF, from intake to the intracellular metabolism of fibre-derived products, and identify possible sources of inter-individual variability related to genetic variation. Such variability may be indicative of the phenotypic flexibility in response to diet, and may be predictive of long-term adaptations to dietary factors, including maladaptation and tissue damage, which may develop into disease in individuals with specific predispositions, thus allowing for a better prediction of potential health effects following personalized intervention with DF.
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Affiliation(s)
- Guilherme Ramos Meyers
- Nutrition and Health Research Group, Department of Precision Health, Luxembourg Institute of Health, 1 A-B, Rue Thomas Edison, 1445 Strassen, Luxembourg
- Doctoral School in Science and Engineering, University of Luxembourg, 2, Avenue de l'Université, 4365 Esch-sur-Alzette, Luxembourg
| | - Hanen Samouda
- Nutrition and Health Research Group, Department of Precision Health, Luxembourg Institute of Health, 1 A-B, Rue Thomas Edison, 1445 Strassen, Luxembourg
| | - Torsten Bohn
- Nutrition and Health Research Group, Department of Precision Health, Luxembourg Institute of Health, 1 A-B, Rue Thomas Edison, 1445 Strassen, Luxembourg
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Karpinets TV, Mitani Y, Liu B, Zhang J, Pytynia KB, Sellen LD, Karagiannis DT, Ferrarotto R, Futreal AP, El-Naggar AK. Whole-Genome Sequencing of Common Salivary Gland Carcinomas: Subtype-Restricted and Shared Genetic Alterations. Clin Cancer Res 2021; 27:3960-3969. [PMID: 34011559 DOI: 10.1158/1078-0432.ccr-20-4071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/27/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE Salivary gland carcinomas (SGCs) are pathologically classified into several widely diverse subtypes, of which adenoid cystic carcinoma (ACC), mucoepidermoid carcinoma (MEC), and salivary duct carcinoma (SDC) are the most commonly encountered. A comparative genetic analysis of these subtypes provides detailed information on the genetic alterations that are associated with their tumorigenesis and may lead to the identification of biomarkers to guide tumor-specific clinical trials. EXPERIMENTAL DESIGN Whole-genome sequencing of 58 common SGCs (20 ACCs, 20 SDCs, and 18 MECs) was performed to catalog structural variations, copy number, rearrangements, and driver mutations. Data were bioinformatically analyzed and correlated with clinicopathologic parameters, and selected targets were validated. RESULTS Novel and recurrent type-specific and shared genetic alterations were identified within and among 3 subtypes. Mutually exclusive canonical fusion and nonfusion genomic alterations were identified in both ACC and MEC. In ACCs, loss of chromosome 12q was dominant in MYB or MYBL1 fusion-positive tumors and mutations of NOTCH pathway were more common in these fusion negatives. In MECs, CRTC1-MAML2 fusion-positive tumors showed frequent BAP1 mutation, and tumors lacking this fusion were enriched with LRFN1 mutation. SDCs displayed considerable genetic instability, lacked recurrent chromosomal rearrangements, and demonstrated nonoverlapping TP53 mutation and ERBB2 amplification in a subset of tumors. Limited genetic alterations, including focal amplifications of 8q21-q23, were shared by all subtypes and were associated with poor survival. CONCLUSIONS This study delineates type-specific and shared genetic alterations that are associated with early phenotypic commitment and the biologic progression of common SGCs. These alterations, upon validation, could serve as biomarkers in tumor-specific clinical trials.
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Affiliation(s)
- Tatiana V Karpinets
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yoshitsugu Mitani
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Bin Liu
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jianhua Zhang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kristen B Pytynia
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Linton D Sellen
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Danice T Karagiannis
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Renata Ferrarotto
- Department of Thoracic/Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Andrew P Futreal
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Adel K El-Naggar
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Domșa AMT, Lupușoru R, Gheban D, Buruiană-Simic A, Gheban BA, Lazăr C, Borzan CM. Helicobacter pylori Infection and the Patterns of Gastric Mucin Expression in Children. J Clin Med 2020; 9:jcm9124030. [PMID: 33322136 PMCID: PMC7764750 DOI: 10.3390/jcm9124030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 01/10/2023] Open
Abstract
Background: The updated model for the mechanism of gastric carcinogenesis demonstrates that Helicobacter pylori (H. pylori) is a risk factor in every step of the process. The expression of certain gastric mucins is altered by H. pylori infection in adult patients. The aim of our research was to assess the impact of H. pylori infection on the expression of secretory mucins in the pediatric antral mucosa. Methods: Slides were stained with monoclonal antibodies for MUC5AC, MUC6 and MUC2, digitalized and scored using both a semiquantitative and a quantitative approach. Results: The expression of MUC5AC was significantly lower in infected children. Also, MUC2 expression was more pronounced in infected children. MUC6 expression did not differentiate between infected and noninfected children. Additionally, the presence of chronic inflammation significantly altered the expression of MUC6 and MUC2. The expression of MUC6 was significantly higher in patients with gastric atrophy. Conclusion: The minor differences in mucin expression at distinct ages might stem from different H. pylori exposure periods. Further research is needed to determine the particular patterns of expression according to age and to evaluate the effects of the interaction between H. pylori and mucins in the progression of the gastric carcinogenesis cascade.
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Affiliation(s)
- Ana-Maria Teodora Domșa
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Raluca Lupușoru
- Department of Gastroenterology and Hepatology, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Department of Functional Sciences, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Correspondence:
| | - Dan Gheban
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
- Department of Pathology, Emergency Clinical Hospital for Children, 400370 Cluj-Napoca, Romania
| | - Alexandra Buruiană-Simic
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Bogdan Alexandru Gheban
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Camelia Lazăr
- Department of Pathology, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (A.-M.T.D.); (D.G.); (A.B.-S.); (B.A.G.); (C.L.)
| | - Cristina Maria Borzan
- Department of Public Health and Management, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
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Companioni O, Bonet C, García N, Ramírez-Lázaro MJ, Lario S, Mendoza J, Adrados MM, Poves E, Espinosa L, Pozo-Kreilinger JJ, Ortega L, Bujanda L, Cosme A, Ferrández A, Muñoz G, Cuatrecasas M, Elizalde I, Andreu V, Paules MJ, Madrigal B, Barrio J, Berdasco M, Calvet X, Sanz-Anquela JM, Gisbert JP, González CA, Sala N. Genetic variation analysis in a follow-up study of gastric cancer precursor lesions confirms the association of MUC2
variants with the evolution of the lesions and identifies a significant association with NFKB1
and CD14. Int J Cancer 2018; 143:2777-2786. [PMID: 30171605 DOI: 10.1002/ijc.31839] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/03/2018] [Accepted: 07/11/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Osmel Companioni
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program; Catalan Institute of Oncology (ICO)-IDIBELL; Barcelona Spain
| | - Catalina Bonet
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program; Catalan Institute of Oncology (ICO)-IDIBELL; Barcelona Spain
| | - Nadia García
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program; Catalan Institute of Oncology (ICO)-IDIBELL; Barcelona Spain
- Translational Research Laboratory; Catalan Institute of Oncology (ICO)-IDIBELL; Barcelona Spain
| | - María José Ramírez-Lázaro
- Departament of Medicine, Digestive Diseases Service; Institut Universitari Parc Taulí, Sabadell, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD); Spain
| | - Sergio Lario
- Departament of Medicine, Digestive Diseases Service; Institut Universitari Parc Taulí, Sabadell, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD); Spain
| | - Jorge Mendoza
- Department of Gastroenterology; Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP) and CIBEREHD; Madrid Spain
| | - Mª Magdalena Adrados
- Department of Pathology; Hospital Universitario de la Princesa, IIS-IP; Madrid, Spain
| | - Elvira Poves
- Department of Gastroenterology; Hospital Universitario Príncipe de Asturias; Alcalá de Henares Spain
| | - Laura Espinosa
- Department of Gastroenterology; Hospital Universitario Príncipe de Asturias; Alcalá de Henares Spain
| | | | - Luís Ortega
- Department of Pathology; Hospital Clínico San Carlos; Madrid Spain
| | - Luis Bujanda
- Department of Pathology and Hospital Donostia/Instituto Biodonostia; Universidad del País Vasco (UPV/EHU), and CIBEREHD; San Sebastián Spain
| | - Angel Cosme
- Department of Gastroenterology; Hospital Donostia/Instituto Biodonostia, Universidad del País Vasco (UPV/EHU), and CIBEREHD; San Sebastián Spain
| | - Angel Ferrández
- Department of Gastroenterology and Hospital Clínico Universitario Lozano Blesa Zaragoza, and CIBEREHD; Spain
| | - Guillermo Muñoz
- Department of Pathology; Hospital Clínico Universitario Lozano Blesa, Zaragoza, and CIBEREHD; Spain
| | - Miriam Cuatrecasas
- Department of Pathology; Hospital Clínic de Barcelona, IDIBAPS and CIBEREHD, and Universitat de Barcelona; Spain
| | - Ignasi Elizalde
- Department of Gastroenterology; Hospital Clínic de Barcelona, IDIBAPS and CIBEREHD; Spain
| | - Victoria Andreu
- Department of Gastroenterology; Hospital de Viladecans; Spain
| | - Mª José Paules
- Department of Pathology; Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat; Spain
| | - Beatriz Madrigal
- Department of Pathology; Hospital Universitario Río Hortega; Valladolid Spain
| | - Jesús Barrio
- Department of Gastroenterology; Hospital Universitario Río Hortega; Valladolid Spain
| | - María Berdasco
- Cancer Epigenetics and Biology Program, IDIBELL; Barcelona Spain
| | - Xavier Calvet
- Departament of Medicine, Digestive Diseases Service; Institut Universitari Parc Taulí, Sabadell, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD); Spain
| | - José Miguel Sanz-Anquela
- Department of Pathology; Hospital “Principe de Asturias” and University of Alcalá; Alcalá de Henares Spain
| | - Javier P. Gisbert
- Department of Gastroenterology; Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP) and CIBEREHD; Madrid Spain
| | - Carlos A. González
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program; Catalan Institute of Oncology (ICO)-IDIBELL; Barcelona Spain
| | - Núria Sala
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program; Catalan Institute of Oncology (ICO)-IDIBELL; Barcelona Spain
- Translational Research Laboratory; Catalan Institute of Oncology (ICO)-IDIBELL; Barcelona Spain
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Zou L, Li W, Han J, Yang Y, Jin J, Xiao F, Xu X, Zhai Z. Identification of a low frequency missense mutation in MUC6 contributing to pulmonary artery hypertension by whole-exome sequencing. Pulm Circ 2018; 8:2045894018794374. [PMID: 30047301 PMCID: PMC6104216 DOI: 10.1177/2045894018794374] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) represents a progressive disease characterized by abnormally high blood pressure in the pulmonary artery. Although mutations in the bone morphogenetic receptor 2 (BMPR2) are found in 80% of heritable, their low penetrance suggests that other unidentified genetic modifiers are required for this disease. In this report, whole-exome sequencing (WES) and a linkage analysis were performed on genomic DNA isolated from four affected relatives and one non-affected relative in two PAH families. By focusing on meaningful variants which were presented in the four affected family members, but not presented in the non-affected individual, 49 SNP and eight indel variants in 39 genes were identified as candidates. Further high-throughput multiplex genotyping and Sanger sequencing were carried out to confirm the putative causal mutations in 150 individuals (30 idiopathic PAH [IPAH] patients, 30 chronic thromboembolic pulmonary hypertension [CTEPH] patients, and 90 normal controls). A heterozygous and deleterious mutation in the gene MUC6 (p.Pro1716Ser) was confirmed in the IPAH group (20/30, 67%) and CTEPH group (1/30, 3.33%); no variant was detected in the 90 normal controls. MUC6, which is short for mucin 6, encodes high molecular weight glycoprotein produced by many epithelial tissues and forms an insoluble mucous barrier that protects the lumens. We re-confirmed this low frequency mutation with the 1000 Genomes database across all species; no population or frequency data of this allele were acquired. We also found that this mutation site was highly conserved in different species and predicted MUC6 has the protection function of the airway and pneumoangiogram based on genomic sequence data. The compound heterozygous MUC6 gene mutation (p.Pro1716Ser) suggests a novel disease mechanism leading to PAH.
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Affiliation(s)
- Lihui Zou
- 1 The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, PR China
| | - Wenqing Li
- 1 The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, PR China
| | - Jingli Han
- 1 The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, PR China
| | - Yuanhua Yang
- 2 Beijing Institute of Respiratory Medicine, Beijing Chao-yang Hospital, Capital Medical University, Beijing, PR China
| | - Junhua Jin
- 1 The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, PR China
| | - Fei Xiao
- 1 The MOH Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, PR China
| | - Xiaomao Xu
- 3 Department of Respiratory and Critical Care Medicine, Beijing Hospital, National Center of Gerontology, Beijing, PR China
| | - Zhenguo Zhai
- 4 Department of Respiratory and Critical Care Medicine, The China-Japan Friendship Hospital, Beijing, PR China
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MUC1 and MUC5AC Acting on Helicobacter pylori-Related Deficiency and Solid Syndrome of Spleen and Stomach. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:9761919. [PMID: 29849739 PMCID: PMC5937449 DOI: 10.1155/2018/9761919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 03/14/2018] [Indexed: 12/14/2022]
Abstract
To investigate the relationship of MUC1, MUC5AC, and the syndrome of spleen and stomach, 109 subjects (34 peptic ulcer (PU), 62 chronic gastritis (CG), and 13 healthy volunteers (CON)) were included. All the subjects included were surveyed with questionnaire to classify them into damp-heat syndrome of spleen and stomach (DHSS), spleen-qi deficiency syndrome (SQD), and CON, examined by gastric endoscope, and biopsied. Rapid urease and methylene blue staining (MBS) were performed on every subject to diagnose for Helicobacter pylori (Hp) infection, and both were defined as Hp-positive. Hematoxylin and eosin (HE) staining was performed on every specimen to explore the histomorphology, inflammatory degree, and inflammatory activity of different groups; then Elivision™ plus kit was used to test the expression of MUC1 and MUC5AC. All the results of digital images were reviewed by two experts blindly. The inflammatory degree with Hp infection was higher than those uninfected or CON, but no significant difference was found between DHSS and SQD. And the expressions of MUC5AC with positive Hp was higher than those with negative Hp or CON regardless of the deficiency and solid syndrome of spleen-stomach but not for MUC1. We speculate that the deficiency and solid syndrome of spleen-stomach is a condition like Tai Ji symbol of dynamic equilibrium, showing the higher expression of MUC5AC but no change of MUC1 in the circumstance of Hp infection.
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Cai M, Dai S, Chen W, Xia C, Lu L, Dai S, Qi J, Wang M, Wang M, Zhou L, Lei F, Zuo T, Zeng H, Zhao X. Environmental factors, seven GWAS-identified susceptibility loci, and risk of gastric cancer and its precursors in a Chinese population. Cancer Med 2017; 6:708-720. [PMID: 28220687 PMCID: PMC5345626 DOI: 10.1002/cam4.1038] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/16/2017] [Accepted: 01/18/2017] [Indexed: 12/15/2022] Open
Abstract
Gene–environment interactions may increase gastric cancer (GC) risk. Seven susceptibility loci identified by genome‐wide association studies (GWASs) suggest that genetic factors play a role in gastric carcinogenesis. Meanwhile, Helicobacter pylori (H. pylori) infection, smoking, and alcohol drinking are also important environmental factors for gastric cancer. However, studies to explore the role of gene–environment interactions in gastric carcinogenesis, and particularly the relationship between the seven susceptibility loci and their potential interactions with H. pylori infection, smoking, and alcohol drinking in risk of GC, and severe intestinal metaplasia (IM)/dysplasia, have been inconclusive. A total of 1273 subjects in a Chinese population were recruited, and genotyping was carried out using the competitive allele‐specific PCR (KASP) method. Unconditional logistic regression was applied to model the associations between genetic polymorphisms and the disease risk. Effect modifications by H. pylori infection, smoking and alcohol drinking were evaluated. PSCA rs2294008/rs2976392 showed a significant, multiplicative interaction with H. pylori infection in risk of GC. Meanwhile, PRKAA1 rs13361707 had an additive interaction with H. pylori infection. SLC52A3 rs13042395 showed an interaction with alcohol drinking in risk of GC. Moreover, three SNPs, MUC1 rs4072037, ZBTB20 rs9841504 and PRKAA1 rs13361707, were associated with precancerous gastric lesions (severe IM/dysplasia). Our data suggest that genetic predisposition factors identified by GWAS may interact with environmental risk factors, Particularly for H. pylori infection and alcohol consumption, to increase the risk of GC.
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Affiliation(s)
- Meng Cai
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuyang Dai
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wanqing Chen
- National Office for Cancer Prevention and Control, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Changfa Xia
- National Office for Cancer Prevention and Control, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lingeng Lu
- Department of Chronic Disease Epidemiology, Yale School of Public Health, School of Medicine, Yale Cancer Center, Yale University, New Haven, Connecticut, USA
| | - Shuguang Dai
- Center for Disease Control and Prevention of Sheyang County, Sheyang, Jiangsu, China
| | - Jun Qi
- Department of Clinical Laboratory, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Minjie Wang
- Department of Clinical Laboratory, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Genetic Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lanping Zhou
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fuhua Lei
- Department of Pathology, Feicheng People Hospital, Feicheng, Shandong, China
| | - Tingting Zuo
- National Office for Cancer Prevention and Control, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongmei Zeng
- National Office for Cancer Prevention and Control, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaohang Zhao
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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10
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Vymetalkova V, Pardini B, Rosa F, Jiraskova K, Di Gaetano C, Bendova P, Levy M, Veskrnova V, Buchler T, Vodickova L, Naccarati A, Vodicka P. Polymorphisms in microRNA binding sites of mucin genes as predictors of clinical outcome in colorectal cancer patients. Carcinogenesis 2016; 38:28-39. [PMID: 27803053 DOI: 10.1093/carcin/bgw114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 09/20/2016] [Accepted: 10/31/2016] [Indexed: 12/13/2022] Open
Abstract
Polymorphisms in microRNA (miRNA) binding sites may affect miRNA/target gene interaction, resulting in differential mRNA/protein expression and susceptibility to common diseases. Mucins have been identified as markers of adverse prognosis. We hypothesized that genetic variations in miRNA binding sites located in mucin genes may modulate signaling response and the maintenance of genomic stability ultimately affecting cancer susceptibility, efficacy of chemotherapy and survival. In this study, we analyzed the association of single nucleotide polymorphisms in predicted miRNA target sites (miRSNPs) of mucin genes with colorectal cancer (CRC) risk and clinical outcome. Thirteen miRSNPs in 9 genes were assessed in 1111 cases and 1469 controls. No strongly significant associations were observed in the case-control study. Patients carrying the CC genotype of rs886403 in MUC21 displayed a shorter survival and higher recurrence risk when compared with TT carriers [overall survival (OS): hazard ratios (HR) 1.69; 95% confidence intervals (CI) 1.13-2.46; P = 0.01 and event-free survival (EFS): HR 1.99; 95% CI 1.38-2.84; P = 0.0002, respectively]. The observed associations were more striking after stratification for tumor site (in patients with colon cancer, OS: HR 2.63; 95% CI 1.69-4.10; P < 0.0001 and EFS: HR 2.65; 95% CI 1.72-4.07; P < 0.0001). In contrast, rectal cancer cases carrying the CC genotype of rs4729655 in MUC17 displayed a longer survival (OS: HR 0.27; 95% CI 0.14-0.54; P = 0.0002) than those with the most common genotype. To our knowledge, this is the first study investigating miRSNPs potentially affecting miRNA binding to mucin genes and revealing their impact on CRC susceptibility or patient's survival.
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Affiliation(s)
- Veronika Vymetalkova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, 14200 Prague, Czech Republic, .,Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 11000 Prague, Czech Republic
| | | | - Fabio Rosa
- Human Genetics Foundation, 10126 Turin, Italy
| | - Katerina Jiraskova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, 14200 Prague, Czech Republic.,Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 11000 Prague, Czech Republic
| | - Cornelia Di Gaetano
- Human Genetics Foundation, 10126 Turin, Italy.,Department of Medical Sciences, University of Turin, 10126 Turin, Italy
| | - Petra Bendova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, 14200 Prague, Czech Republic.,Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 11000 Prague, Czech Republic.,Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, 30605 Pilsen, Czech Republic
| | - Miloslav Levy
- Department of Surgery, First Faculty of Medicine, Charles University and Thomayer University Hospital, 14200 Prague, Czech Republic and
| | - Veronika Veskrnova
- Department of Oncology, Thomayer Hospital and First Faculty of Medicine, Charles University, 11000 Prague, Czech Republic
| | - Tomas Buchler
- Department of Oncology, Thomayer Hospital and First Faculty of Medicine, Charles University, 11000 Prague, Czech Republic
| | - Ludmila Vodickova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, 14200 Prague, Czech Republic.,Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 11000 Prague, Czech Republic.,Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, 30605 Pilsen, Czech Republic
| | - Alessio Naccarati
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, 14200 Prague, Czech Republic.,Human Genetics Foundation, 10126 Turin, Italy
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, 14200 Prague, Czech Republic.,Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, 11000 Prague, Czech Republic.,Biomedical Centre, Faculty of Medicine in Pilsen, Charles University in Prague, 30605 Pilsen, Czech Republic
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11
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Skierucha M, Milne ANA, Offerhaus GJA, Polkowski WP, Maciejewski R, Sitarz R. Molecular alterations in gastric cancer with special reference to the early-onset subtype. World J Gastroenterol 2016; 22:2460-74. [PMID: 26937134 PMCID: PMC4768192 DOI: 10.3748/wjg.v22.i8.2460] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/06/2015] [Accepted: 12/30/2015] [Indexed: 02/06/2023] Open
Abstract
Currently, gastric cancer (GC) is one of the most frequently diagnosed neoplasms, with a global burden of 723000 deaths in 2012. It is the third leading cause of cancer-related death worldwide. There are numerous possible factors that stimulate the pro-carcinogenic activity of important genes. These factors include genetic susceptibility expressed in a single-nucleotide polymorphism, various acquired mutations (chromosomal instability, microsatellite instability, somatic gene mutations, epigenetic alterations) and environmental circumstances (e.g., Helicobcter pylori infection, EBV infection, diet, and smoking). Most of the aforementioned pathways overlap, and authors agree that a clear-cut pathway for GC may not exist. Thus, the categorization of carcinogenic events is complicated. Lately, it has been claimed that research on early-onset gastric carcinoma (EOGC) and hereditary GC may contribute towards unravelling some part of the mystery of the GC molecular pattern because young patients are less exposed to environmental carcinogens and because carcinogenesis in this setting may be more dependent on genetic factors. The comparison of various aspects that differ and coexist in EOGCs and conventional GCs might enable scientists to: distinguish which features in the pathway of gastric carcinogenesis are modifiable, discover specific GC markers and identify a specific target. This review provides a summary of the data published thus far concerning the molecular characteristics of GC and highlights the outstanding features of EOGC.
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12
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Wen R, Gao F, Zhou CJ, Jia YB. Polymorphisms in mucin genes in the development of gastric cancer. World J Gastrointest Oncol 2015; 7:328-337. [PMID: 26600932 PMCID: PMC4644855 DOI: 10.4251/wjgo.v7.i11.328] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 07/01/2015] [Accepted: 09/07/2015] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer (GC) is the third leading cause of cancer-related death worldwide. In areas of high prevalence, such as Japan, South Korea and China, most cases of GC are related to Helicobacter pylori (H. pylori), which involves well-characterized sequential stages, including infection, atrophic gastritis, intestinal metaplasia, dysplasia, and GC. Mucins are the most abundant high-molecular-weight glycoproteins in mucus, which is the first line of defense and plays a major role in blocking pathogenic factors. Normal gastric mucosa shows expression of MUC1, MUC5AC and MUC6 that is specific to cell type. However, the specific pattern of MUC1, MUC5AC and MUC6 expression is changed in gastric carcinogenesis, accompanied by de novo expression of secreted MUC2. Recent studies have provided evidence that variations in these mucin genes affect many steps of GC development, such as H. pylori infection, and gastric precancerous lesions. In this review, we focus on studies of the association between polymorphisms in mucin genes and development of GC. This information should be helpful for the early detection, surveillance, and treatment of GC.
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13
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Abstract
Gastric cancer remains highly prevalent and accounts for a notable proportion of global cancer mortality. This cancer is also associated with poor survival rates. Understanding the genetic basis of gastric cancer will offer insights into its pathogenesis, help identify new biomarkers and novel treatment targets, aid prognostication and could be central to developing individualized treatment strategies in the future. An inherited component contributes to <3% of gastric cancers; the majority of genetic changes associated with gastric cancer are acquired. Over the past few decades, advances in technology and high-throughput analysis have improved understanding of the molecular aspects of the pathogenesis of gastric cancer. These aspects are multifaceted and heterogeneous and represent a wide spectrum of several key genetic influences, such as chromosomal instability, microsatellite instability, changes in microRNA profile, somatic gene mutations or functional single nucleotide polymorphisms. These genetic aspects of the pathogenesis of gastric cancer will be addressed in this Review.
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Affiliation(s)
- Mairi H McLean
- National Cancer Institute, Laboratory of Molecular Immunoregulation, Cancer &Inflammation Program, 1050 Boyles Street, Frederick, MD 21702-1201, USA
| | - Emad M El-Omar
- Division of Applied Medicine, Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB51 5ER, UK
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14
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Williams KA, Terry KL, Tworoger SS, Vitonis AF, Titus LJ, Cramer DW. Polymorphisms of MUC16 (CA125) and MUC1 (CA15.3) in relation to ovarian cancer risk and survival. PLoS One 2014; 9:e88334. [PMID: 24551091 PMCID: PMC3923771 DOI: 10.1371/journal.pone.0088334] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 01/06/2014] [Indexed: 01/09/2023] Open
Abstract
Objective To examine single nucleotide polymorphism (SNPs) in MUC16 (CA125) and MUC1 (CA15.3) in relation to ovarian cancer risk and survival. Methods We genotyped germline variants of MUC16 (rs2547065, rs1559168, rs12984471, rs2121133) and MUC1 (rs2070803, rs4072037, rs1045253) using samples collected from 758 ovarian cancer cases and 788 controls enrolled in the New England Case-Control Study between 2003 and 2008. We calculated age-adjusted odds ratios (OR) and 95% confidence intervals (CIs) for disease risk using unconditional and polytomous logistic regression and hazard ratios (HR) for survival using Cox proportional hazard ratios. In a subset of cases, we compared log-normalized CA125 values by genotype using generalized linear models. Results Cases homozygous for the variant allele of MUC16 SNP, rs12984471, had poorer overall survival (log-rank p = 0.03) and higher CA125 levels, especially cases over age 65 (p = 0.01). For MUC1 SNP, rs4072037, women homozygous for the G variant had a non-significantly decreased risk for serous invasive types but elevated risk for serous borderline tumors, mucinous borderline and invasive tumors, and endometrioid tumors. Women with the variant allele of MUC16 SNP, rs2547065, especially those who were homozygous had an elevated risk for ovarian cancer; but this association was not confirmed in an independent dataset. Conclusion This targeted screen of seven polymorphisms of MUC16 and MUC1 genes failed to identify and confirm effects on ovarian cancer risk overall. However, there may be effects of MUC16 rs12984471 on survival and MUC1 rs4072037 on risk for histologic types of ovarian cancer other than invasive serous. Further study is warranted.
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MESH Headings
- Adenocarcinoma, Mucinous/genetics
- Adenocarcinoma, Mucinous/mortality
- Adenocarcinoma, Mucinous/pathology
- Age Factors
- Aged
- CA-125 Antigen/genetics
- Carcinoma, Endometrioid/genetics
- Carcinoma, Endometrioid/mortality
- Carcinoma, Endometrioid/pathology
- Case-Control Studies
- Cystadenoma, Serous/genetics
- Cystadenoma, Serous/mortality
- Cystadenoma, Serous/pathology
- Female
- Homozygote
- Humans
- Membrane Proteins/genetics
- Middle Aged
- Mucin-1/genetics
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/mortality
- Ovarian Neoplasms/pathology
- Polymorphism, Single Nucleotide
- Proportional Hazards Models
- Risk Factors
- Survival Analysis
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Affiliation(s)
- Kristina A. Williams
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Kathryn L. Terry
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Shelley S. Tworoger
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Allison F. Vitonis
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
| | - Linda J. Titus
- Department of Community & Family Medicine, Department of Pediatrics, Dartmouth-Hitchcock Medical Center Lebanon, New Hampshire, United States of America
| | - Daniel W. Cramer
- Obstetrics and Gynecology Epidemiology Center, Department of Obstetrics and Gynecology, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
- * E-mail:
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15
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Boltin D, Niv Y. Mucins in Gastric Cancer - An Update. JOURNAL OF GASTROINTESTINAL & DIGESTIVE SYSTEM 2013; 3:15519. [PMID: 24077811 PMCID: PMC3784667 DOI: 10.4172/2161-069x.1000123] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mucins are high-molecular-weight glycoproteins expressed throughout the gastrointestinal tract, with a key role in mucosal protection and function. In gastric cancer expression of MUC5AC and MUC1 is reduced and denovo expression of MUC2 occurs. With progressive loss of tumor differentiation and increased tumor stage, expression of MUC5AC and MUC1 is further reduced, and MUC2 decreases. Isolated MUC2 expression (the intestinal phenotype) correlates with metastatic spread and poor survival. There is emerging evidence that MUC1 acts as an oncoprotein when overexpressed. The cytoplasmic tail of MUC1 interacts with the H. pylori virulence factor cagA and is a major effector of the wnt-β catenin intracellular signalling cascade. Polymorphism in the MUC1 gene has been identified in gastric cancer patients and may have a prospective role in the stratification of high-risk subjects. The MUC1 gene also mediates resistance to the recombinant HER2/neu antibody trastuzumab. Future research efforts will examine targeting MUC1 for therapeutic purposes.
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Affiliation(s)
- Doron Boltin
- Department of Gastroenterology, Rabin Medical Center, Sackler School of Medicine, Tel Aviv University, Israel
| | - Yaron Niv
- Department of Gastroenterology, Rabin Medical Center, Sackler School of Medicine, Tel Aviv University, Israel
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16
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Xiao X, Wang L, Wei P, Chi Y, Li D, Wang Q, Ni S, Tan C, Sheng W, Sun M, Zhou X, Du X. Role of MUC20 overexpression as a predictor of recurrence and poor outcome in colorectal cancer. J Transl Med 2013; 11:151. [PMID: 23787019 PMCID: PMC3702436 DOI: 10.1186/1479-5876-11-151] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 06/13/2013] [Indexed: 01/17/2023] Open
Abstract
Background Colorectal cancer (CRC) remains one of the most common cancers worldwide. We observed that MUC20 was significantly up-regulated in CRC patients with poor prognosis based on the microarray analysis. However, little is known about the role of MUC20 in CRC. Methods Microarray experiments were performed on the Affymetrix U133 plus 2.0 GeneChip Array. The protein and mRNA levels of MUC20 were examined by immunohistochemistry (IHC) and Real-Time quantitative PCR (RT-qPCR) in CRC tissues and adjacent noncancerous tissues (ANCT). ShRNA and overexpression plasmids were used to regulate MUC20 expression in CRC cell lines in vitro; wound healing, Transwell migration assays, and Western blotting were used to detect migration and invasion changes. Results MUC20 was one of the up-regulated genes in CRC patients with poor prognosis by microarray. Using IHC and RT-qPCR, we showed that MUC20 expression was significantly higher in CRC tissues than in ANCT (P < 0.05). We further showed that MUC20 overexpression was correlated with recurrence and poor outcome (P < 0.05). The Kaplan-Meier survival curves indicated that disease-free survival (DFS) and overall survival (OS) were significantly worse in CRC patients with MUC20 overexpression. The Cox multivariate analysis revealed that MUC20 overexpression and TNM stage were independent prognostic factors. Elevated expression of MUC20 in cells promoted migration and invasion, whereas ShRNA-mediated knockdown inhibited these processes. In addition, Western blotting demonstrated that MUC20-induced invasion was associated with MMP-2, MMP-3, and E-cadherin. Conclusions Cumulatively, MUC20 may serve as an important predictor of recurrence and poor outcome for CRC patients. MUC20 overexpression could enhance migration and invasion abilities of CRC cells. Translation of its roles into clinical practice will need further investigation and additional test validation.
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Affiliation(s)
- Xiuying Xiao
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
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