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Tcherniakovsky M, de Oliveira E, Martinelli Sonnenfeld M, Arcoverde Cavalcanti Meniconi MM, Franco de Oliveira M, Tcherniakovsky I, Moscovitz T, Wajman M, Camargo Mariano da Silva R, Fernandes CE. Evaluation of Comt2, Comt3, Cyp1b1, and Esr1 gene polymorphisms as risk factor for endometrial polyp. Women Health 2023; 63:818-827. [PMID: 37908103 DOI: 10.1080/03630242.2023.2272206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/12/2023] [Indexed: 11/02/2023]
Abstract
The aim of this study is to evaluate COMT2, COMT3, CYP1B1, and ESR1 gene polymorphisms and occurrence of endometrial polyps. In addition, we intended to evaluate the clinical and epidemiological features of patients with and without the presence of the disease, characterizing the possible risk factors. A cross-sectional study was performed, with a total of 309 women, including 236 in the group of women with endometrial polyp confirmed by hysteroscopy and anatomical pathological examination and 73 in the group of people with diagnostic hysteroscopy without abnormal findings from the macroscopic point of view. Polymorphisms of four genes were studied: COMT2 (rs4680), COMT3 (rs5031015), CYP1B1 (rs1056836), and ESR1 (rs2234693). Polymorphism genotyping was determined using real-time polymerase chain reaction. Considering the results, no differences were identified between the two groups with respect to age, body mass index, diabetes, dyslipidemia, or smoking. The group of women without endometrial polyps showed higher use of hormone therapy than the other group (16.4 percent versus 3.8 percent, p < .001). The COMT2, COMT3, CYP1B1, and ESR1 genes exhibited no significant difference for the occurrence of endometrial polyp between the two groups. The research concluded that no correlation was identified between the genetic polymorphisms evaluated and the presence of endometrial polyps.
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Affiliation(s)
- Marcos Tcherniakovsky
- Head of the Video Endoscopy and Endometriosis Section of The Gynecology Department, Faculdade de Medicina do ABC, Santo André, Brazil
| | - Emerson de Oliveira
- Head of the Urogynecology Section of The Gynecology Department, Faculdade de Medicina do ABC, Santo André, Brazil
| | - Marina Martinelli Sonnenfeld
- Fellow of the Video Endoscopy and Endometriosis Section of The Gynecology Department, Faculdade de Medicina do ABC, Santo André, Brazil
| | | | | | | | - Thomas Moscovitz
- Member of the Video Endoscopy and Endometriosis Section of The Gynecology Department, Faculdade de Medicina do ABC, Santo André, Brazil
| | - Milton Wajman
- Member of the Video Endoscopy and Endometriosis Section of The Gynecology Department, Faculdade de Medicina do ABC, Santo André, Brazil
| | - Rogers Camargo Mariano da Silva
- Member of the Video Endoscopy and Endometriosis Section of The Gynecology Department, Faculdade de Medicina do ABC, Santo André, Brazil
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Nagy D, Ellinger J, Ritter M, Pelusi N, Kristiansen G. Inflammatory fibroid polyp of the renal pelvis: first report at an extra-gastrointestinal site with molecular confirmation. Virchows Arch 2023; 483:535-539. [PMID: 37184764 PMCID: PMC10611610 DOI: 10.1007/s00428-023-03557-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 05/16/2023]
Abstract
Inflammatory fibroid polyps (IFP) are rare and benign mesenchymal tumours of the gastrointestinal tract. They are submucosal spindle cell lesions with an eosinophilic-rich inflammatory infiltrate and mutations in the platelet-derived growth factor receptor alpha (PDGFRA) gene. In this report, we present the case of a 74-year-old female with a solid tumour of the kidney, which presented as a bland proliferation of spindle cells with thin-walled blood vessels and an inflammatory infiltrate with eosinophilic granulocytes. Immunohistochemistry revealed a positivity for vimentin and a weak staining for CD99 and CD34 in the spindle cells. Because of the morphological similarity to IFPs of the gastrointestinal tract, a molecular pathology analysis was performed. This identified an oncogenic mutation in exon 18 of the PDGFRA gene, which is characteristic for inflammatory fibroid polyps of the gastrointestinal tract. To the best of our knowledge, this is the first case of an IFP in the urogenital tract.
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Affiliation(s)
- Dora Nagy
- Institute of Pathology, University Hospital Bonn (UKB), Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Jörg Ellinger
- Clinic for Urology, University Hospital Bonn (UKB), Bonn, Germany
| | - Manuel Ritter
- Clinic for Urology, University Hospital Bonn (UKB), Bonn, Germany
| | - Natalie Pelusi
- Institute of Pathology, University Hospital Bonn (UKB), Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Glen Kristiansen
- Institute of Pathology, University Hospital Bonn (UKB), Sigmund-Freud-Str. 25, 53127, Bonn, Germany.
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Li XH, Lu MY, Niu JL, Zhu DY, Liu B. cfDNA Methylation Profiles and T-Cell Differentiation in Women with Endometrial Polyps. Cells 2022; 11:cells11243989. [PMID: 36552753 PMCID: PMC9777338 DOI: 10.3390/cells11243989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/30/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
DNA methylation is a part of the regulatory mechanisms of gene expression, including chromatin remodeling and the activity of microRNAs, which are involved in the regulation of T-cell differentiation and function. However, the role of cfDNA methylation in T-cell differentiation is entirely unknown. In patients with endometrial polyps (EPs), we have found an imbalance of T-cell differentiation and an aberrant cfDNA methylation profile, respectively. In this study, we investigated the relationship between cfDNA methylation profiles and T-cell differentiation in 14 people with EPs and 27 healthy controls. We found that several differentially methylated genes (DMGs) were associated with T-cell differentiation in people with EPs (ITGA2-Naïve CD4, r = -0.560, p = 0.037; CST9-EMRA CD4, r = -0.626, p = 0.017; and ZIM2-CM CD8, r = 0.576, p = 0.031), but not in healthy controls (all p > 0.05). When we combined the patients' characteristics, we found a significant association between ITGA2 methylation and polyp diameter (r = 0.562, p = 0.036), but this effect was lost when adjusting the level of Naïve CD4 T-cells (r = 0.038, p = 0.903). Moreover, the circulating sex hormone levels were associated with T-cell differentiation (estradiol-Naïve CD4, r = -0.589, p = 0.027), and the cfDNA methylation profile (testosterone-ZIM2, r = -0.656, p = 0.011). In conclusion, this study has established a link between cfDNA methylation profiles and T-cell differentiation among people with EPs, which may contribute to the etiology of EPs. Further functional studies are warranted.
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Affiliation(s)
- Xiao-Hong Li
- Department of Reproductive Health, Shenzhen Baoan Women’s and Children’s Hospital, Jinan University, Shenzhen 518102, China
| | - Mei-Yin Lu
- Department of Biobank, Shenzhen Baoan Women’s and Children’s Hospital, Jinan University, Shenzhen 518102, China
| | - Jia-Li Niu
- Department of Biobank, Shenzhen Baoan Women’s and Children’s Hospital, Jinan University, Shenzhen 518102, China
| | - Dong-Yan Zhu
- Department of Biobank, Shenzhen Baoan Women’s and Children’s Hospital, Jinan University, Shenzhen 518102, China
| | - Bin Liu
- Department of Biobank, Shenzhen Baoan Women’s and Children’s Hospital, Jinan University, Shenzhen 518102, China
- Correspondence: ; Tel.: +86-158-1732-7996
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Luo M, Zhao X, Yang J, Chen Y. The association of polypoidal choroidal vasculopathy clinical phenotypes with previously reported genetic markers. Graefes Arch Clin Exp Ophthalmol 2020; 258:1199-1203. [PMID: 32328755 PMCID: PMC7237508 DOI: 10.1007/s00417-020-04702-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 12/03/2022] Open
Abstract
PURPOSE Genetic studies have identified the association of some single-nucleotide polymorphisms (SNPs) with polypoidal choroidal vasculopathy (PCV), but little is known about whether these SNPs are related to PCV clinical features as well. We performed this study to examine the association of 12 SNPs with PCV clinical phenotypes. METHODS Sixty-nine PCV eyes of 69 patients were included. Genomic DNA was extracted from peripheral blood. Agilent SureSelect Human ALL Exon V6 was used to sequence the 12 SNPs previously reported to associate with PCV. Baseline best-corrected visual acuity (BCVA), sub-foveal choroidal thickness (SFCT), choroid maximum vascular diameter (MVD), choroidal vascular hyperpermeability (CVH), and greatest linear dimension (GLD) of entire lesion were measured and compared between patients of different genotypes. Fisher's exact test and Mann-Whitney U test were mainly used to compare categorical variables and continuous variables respectively. RESULTS HTRA1 rs2293870 was a protective factor of PCV or AMD in the fellow eye (P = 0.040) and was related with greater SFCT in PCV eye after multiple linear regression (P = 0.043). C3 rs17030 was associated with smaller GLD (P = 0.033). CFH rs2274700 was related to lower MVD (P = 0.043) and was a protective factor for CVH (P = 0.034). CONCLUSION Multiple PCV-associated SNPs are associated with PCV clinical phenotypes. The involvement of several synonymous SNPs calls for further research on the role of transcriptional alterations and trans-regulation of distant signaling pathways in PCV pathogenesis.
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Affiliation(s)
- Mingyue Luo
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xinyu Zhao
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Jingyuan Yang
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Youxin Chen
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.
- Key Laboratory of Ocular Fundus Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.
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Abstract
Age-related macular degeneration (AMD) and polypoidal choroidal vasculopathy (PCV) are leading causes of irreversible blindness among the elderly population in developed countries. Although being considered as different subtypes of a same disease, neovascular AMD and PCV have differences in clinical, epidemiological, therapeutic, and genetic profiles. Both AMD and PCV are complex diseases involving multiple genetic and environmental risk factors. Different genetic strategies have been adopted to discover associated genes and variants for neovascular AMD and PCV, including genome-wide association study (GWAS), next-generation sequencing (NGS) based sequence analysis, and candidate gene analyses. So far, a number of susceptible genes have been identified for AMD and/or PCV, such as CFH, ARMS2-HTRA1, C2-CFB-SKIV2L, C3, CETP, and FGD6. Although many of these genes are shared by AMD and PCV, some showed difference between them, such as ARMS2-HTRA1 and FGD6. Also, some of the genes showed ethnic diversities, such as the CFH p.Tyr402His variant. Further larger-scale genomic studies should be warranted to identify more susceptibility genes for AMD and, in particular, PCV among different populations, and differentiate the genetic architectures between neovascular AMD and PCV.
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Affiliation(s)
- Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital Eye Center, Hong Kong, China
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Hang D, Joshi AD, He X, Chan AT, Jovani M, Gala MK, Ogino S, Kraft P, Turman C, Peters U, Bien SA, Lin Y, Hu Z, Shen H, Wu K, Giovannucci EL, Song M. Colorectal cancer susceptibility variants and risk of conventional adenomas and serrated polyps: results from three cohort studies. Int J Epidemiol 2020; 49:259-269. [PMID: 31038671 PMCID: PMC7426026 DOI: 10.1093/ije/dyz096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2019] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Increasing evidence suggests that conventional adenomas (CAs) and serrated polyps (SPs) represent two distinct groups of precursor lesions for colorectal cancer (CRC). The influence of common genetic variants on risk of CAs and SPs remain largely unknown. METHODS Among 27 426 participants within three prospective cohort studies, we created a weighted genetic risk score (GRS) based on 40 CRC-related single nucleotide polymorphisms (SNPs) identified in previous genome-wide association studies; and we examined the association of GRS (per one standard deviation increment) with risk of CAs, SPs and synchronous CAs and SPs, by multivariable logistic regression. We also analysed individual variants in the secondary analysis. RESULTS During 18-20 years of follow-up, we documented 2952 CAs, 1585 SPs and 794 synchronous CAs and SPs. Higher GRS was associated with increased risk of CAs [odds ratio (OR) = 1.17, 95% confidence interval (CI): 1.12-1.21] and SPs (OR = 1.09, 95% CI: 1.03-1.14), with a stronger association for CAs than SPs (Pheterogeneity=0.01). An even stronger association was found for patients with synchronous CAs and SPs (OR = 1.32), advanced CAs (OR = 1.22) and multiple CAs (OR = 1.25). Different sets of variants were associated with CAs and SPs, with a Spearman correlation coefficient of 0.02 between the ORs associating the 40 SNPs with the two lesions. After correcting for multiple testing, three variants were associated with CAs (rs3802842, rs6983267 and rs7136702) and two with SPs (rs16892766 and rs4779584). CONCLUSIONS Common genetic variants play a potential role in the conventional and serrated pathways of CRC. Different sets of variants are identified for the two pathways, further supporting the aetiological heterogeneity of CRC.
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Affiliation(s)
- Dong Hang
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, China
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Amit D Joshi
- Clinical and Translational Epidemiology Unit and Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Xiaosheng He
- Clinical and Translational Epidemiology Unit and Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Colorectal Surgery, Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Andrew T Chan
- Clinical and Translational Epidemiology Unit and Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Manol Jovani
- Clinical and Translational Epidemiology Unit and Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Manish K Gala
- Clinical and Translational Epidemiology Unit and Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shuji Ogino
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
- Program in MPE Molecular Pathological Epidemiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Peter Kraft
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Constance Turman
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Program in Genetic Epidemiology and Statistical Genetics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Ulrike Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA
| | - Stephanie A Bien
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Yi Lin
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, China
| | - Kana Wu
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Edward L Giovannucci
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Mingyang Song
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Clinical and Translational Epidemiology Unit and Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Doria PLS, Moscovitz T, Tcherniakovsky M, Fernandes CE, Pompei LM, Wajman M, Nimwegen AV, Haimovich S. Association of IGF-1 CA(n) and IGFBP3 rs2854746 Polymorphisms with Endometrial Polyp Risk. Biomed Res Int 2018; 2018:8704346. [PMID: 30643822 PMCID: PMC6311315 DOI: 10.1155/2018/8704346] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 10/15/2018] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Insulin-like growth factor 1 (IGF-1) is a peptide growth factor that promotes cell proliferation and inhibits apoptosis. The bioavailability of IGF-1 is regulated by the insulin-like growth factor binding protein 3 (IGFBP3). Genetic variations influence the levels of IGF-1 and IGFBP3. The purpose of this study was to examine the association of polymorphisms IGF-1 CA(n) and IGFBP3 rs2854746 with risk of endometrial polyps. MATERIALS AND METHODS Case control observational study, composed of 104 women with antecedent of endometrial polyp (case group) and 81 postmenopausal women without antecedent of endometrial diseases (control group). Genotyping of IGF-1 CA(n) was performed by PCR and fragment analysis by capillary electrophoresis, and genotyping of IGFBP3 rs2854746 was performed by PCR-HRM. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated by logistic regression. RESULTS The genotype IGF-1 CA(19)/CA(19) was associated with an increased endometrial polyp risk (OR=2,57; IC 95%= 1,09 - 6,01); this was also found when combining it with CA(>19)/CA(n) genotypes (OR=2,18; IC 95%= 1,06-4,47). The IGFBP3 rs2854746 analyses showed the CG genotype having a protective effect for endometrial polyp (OR=0,37; IC 95%= 0,19-0,73), fact also observed when grouping CG and GG carriers (OR=0,51; IC 95%= 0,28-0,93). CONCLUSION The genotypes CA(19)/CA(19) and CA(19)/CA(19) + CA(>19)/CA(n) of the IGF-1 CA(n) may be considered a risk for endometrial polyp, whereas the genotypes CG and CG + GG of IGFBP3 rs2854746 polymorphism have an inverse effect of endometrial polyp risk.
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Affiliation(s)
| | - Thomas Moscovitz
- Department of Obstetrics and Gynecology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
| | - Marcos Tcherniakovsky
- Department of Obstetrics and Gynecology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
| | - Cesar Eduardo Fernandes
- Department of Obstetrics and Gynecology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
| | - Luciano Melo Pompei
- Department of Obstetrics and Gynecology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
| | - Milton Wajman
- Department of Obstetrics and Gynecology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
| | - Angela Van Nimwegen
- Department of Obstetrics and Gynecology, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
| | - Sergio Haimovich
- Head of the Hysteroscopy Unit, Del Mar University Hospital, Barcelona, Spain
- Head of Gynecology Ambulatory Surgery, Hillel Yaffe Medical Center/Technion-Israel Technology Institute, Hadera, Israel
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Kullo IJ, Olson J, Fan X, Jose M, Safarova M, Radecki Breitkopf C, Winkler E, Kochan DC, Snipes S, Pacyna JE, Carney M, Chute CG, Gupta J, Jose S, Venner E, Murugan M, Jiang Y, Zordok M, Farwati M, Philogene M, Smith E, Shaibi GQ, Caraballo P, Freimuth R, Lindor NM, Sharp R, Thibodeau SN. The Return of Actionable Variants Empirical (RAVE) Study, a Mayo Clinic Genomic Medicine Implementation Study: Design and Initial Results. Mayo Clin Proc 2018; 93:1600-1610. [PMID: 30392543 PMCID: PMC6652203 DOI: 10.1016/j.mayocp.2018.06.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/04/2018] [Accepted: 06/08/2018] [Indexed: 12/02/2022]
Abstract
OBJECTIVES To identify clinically actionable genetic variants from targeted sequencing of 68 disease-related genes, estimate their penetrance, and assess the impact of disclosing results to participants and providers. PATIENTS AND METHODS The Return of Actionable Variants Empirical (RAVE) Study investigates outcomes following the return of pathogenic/likely pathogenic (P/LP) variants in 68 disease-related genes. The study was initiated in December 2016 and is ongoing. Targeted sequencing was performed in 2533 individuals with hyperlipidemia or colon polyps. The electronic health records (EHRs) of participants carrying P/LP variants in 36 cardiovascular disease (CVD) genes were manually reviewed to ascertain the presence of relevant traits. Clinical outcomes, health care utilization, family communication, and ethical and psychosocial implications of disclosure of genomic results are being assessed by surveys, telephone interviews, and EHR review. RESULTS Of 29,208 variants in the 68 genes, 1915 were rare (frequency <1%) and putatively functional, and 102 of these (60 in 36 CVD genes) were labeled P/LP based on the American College of Medical Genetics and Genomics framework. Manual review of the EHRs of participants (n=73 with P/LP variants in CVD genes) revealed that 33 had the expected trait(s); however, only 6 of 45 participants with non-familial hypercholesterolemia (FH) P/LP variants had the expected traits. CONCLUSION Expected traits were present in 13% of participants with P/LP variants in non-FH CVD genes, suggesting low penetrance; this estimate may change with additional testing performed as part of the clinical evaluation. Ongoing analyses of the RAVE Study will inform best practices for genomic medicine.
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Affiliation(s)
- Iftikhar J Kullo
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
| | - Janet Olson
- Department of Health Sciences Research, Biomedical Ethics Program, Mayo Clinic, Rochester, MN
| | - Xiao Fan
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Merin Jose
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Maya Safarova
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | | | - Erin Winkler
- Center for Individualized Medicine-Genomics, Mayo Clinic, Rochester, MN
| | - David C Kochan
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Sara Snipes
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Joel E Pacyna
- Department of Health Sciences Research, Biomedical Ethics Program, Mayo Clinic, Rochester, MN
| | - Meaghan Carney
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Christopher G Chute
- Johns Hopkins University, Schools of Medicine, Public Health and Nursing, Baltimore, MD
| | - Jyoti Gupta
- National Human Genome Research Institute, Bethesda, MD
| | - Sheethal Jose
- National Human Genome Research Institute, Bethesda, MD
| | - Eric Venner
- Baylor College of Medicine Human Genome Sequencing Center, Houston, TX
| | - Mullai Murugan
- Baylor College of Medicine Human Genome Sequencing Center, Houston, TX
| | - Yunyun Jiang
- Baylor College of Medicine Human Genome Sequencing Center, Houston, TX
| | - Magdi Zordok
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Medhat Farwati
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | | | - Erica Smith
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Gabriel Q Shaibi
- Center for Health Promotion and Disease Prevention, Arizona State University, Phoenix, AZ
| | | | - Robert Freimuth
- Department of Health Sciences Research, Biomedical Ethics Program, Mayo Clinic, Rochester, MN
| | | | - Richard Sharp
- Department of Health Sciences Research, Biomedical Ethics Program, Mayo Clinic, Rochester, MN
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Tantilipikorn P, Sookrung N, Muangsomboon S, Lumyongsatien J, Bedavanija A, Suwanwech T. Endotyping of Chronic Rhinosinusitis With and Without Polyp Using Transcription Factor Analysis. Front Cell Infect Microbiol 2018; 8:82. [PMID: 29637046 PMCID: PMC5880998 DOI: 10.3389/fcimb.2018.00082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 02/28/2018] [Indexed: 12/02/2022] Open
Abstract
Inflammation of the nose and paranasal sinus or rhinosinusitis (RS) is a significant global health problem that is both very common and very costly to treat. Previous reports reveal variability in histology and mechanism of inflammation in patients with chronic rhinosinusitis with and without polyp (CRScNP and CRSsNP, respectively). There are various methods and hypothesis that try to explain this variability. Accordingly, the aim of this study was to investigate the incidence of each type of sinonasal inflammation among patients diagnosed with CRScNP or CRSsNP using transcription factor analysis (TFA). This study included mucosa specimens from nose/paranasal sinuses from patients with chronic rhinitis (CR), CRSsNP, or CRScNP that were obtained at the Department of Otorhinolaryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand during the June 2009 to May 2012 study period. TFA was employed to measure the following transcription factors: T-box transcription factor (T-bet) for Th1, GATA binding protein 3 (GATA-3) for Th2, retinoic acid-related orphan receptor C (RORC) for Th17, and forkhead box P3 (FOXP3) for Treg. Forty-one subjects (22 males, 19 females) were enrolled, with a mean age of 45.93 ± 13 years. Twenty-six patients were diagnosed with CRScNP, 7 with CRSsNP, and 8 with CR (controls). The majority of CRScNP specimens (76.9%) had eosinophil count greater than 100 cells/high-power field (HPF). Mean eosinophil count was 930.08 ± 1,399 cells/HPF (range: 17-5,570). Th2 transcription factor (GATA-3) was statistically significantly higher in the CRScNP group than in the CRS and control groups (p < 0.001); whereas, Treg transcription factor (FOXP3) was statistically significantly lower in the CRScNP group than in the CRSsNP and control groups (p < 0.001). The transcription factors for Th1 and Th17 (T-bet and RORC, respectively) were not significantly different among the three groups. The result of transcription factor analysis revealed hyperfunction of Th2 in patients with CRScNP, which might result in hypereosinophilic infliltration in the polyps. One explanation for this finding is the decreased activity of Treg. Although environment-host interaction is the most probable hypothesis, the etiology of aberrant adaptive immunity needs to be elucidated.
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Affiliation(s)
- Pongsakorn Tantilipikorn
- Division of Rhinology and Allergy, Department of Otorhinolaryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Nitat Sookrung
- Office of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Soranart Muangsomboon
- Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jate Lumyongsatien
- Division of Rhinology and Allergy, Department of Otorhinolaryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Anan Bedavanija
- Division of Rhinology and Allergy, Department of Otorhinolaryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Triphoom Suwanwech
- Division of Rhinology and Allergy, Department of Otorhinolaryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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East JE, Atkin WS, Bateman AC, Clark SK, Dolwani S, Ket SN, Leedham SJ, Phull PS, Rutter MD, Shepherd NA, Tomlinson I, Rees CJ. British Society of Gastroenterology position statement on serrated polyps in the colon and rectum. Gut 2017; 66:1181-1196. [PMID: 28450390 PMCID: PMC5530473 DOI: 10.1136/gutjnl-2017-314005] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 03/31/2017] [Accepted: 04/03/2017] [Indexed: 02/07/2023]
Abstract
Serrated polyps have been recognised in the last decade as important premalignant lesions accounting for between 15% and 30% of colorectal cancers. There is therefore a clinical need for guidance on how to manage these lesions; however, the evidence base is limited. A working group was commission by the British Society of Gastroenterology (BSG) Endoscopy section to review the available evidence and develop a position statement to provide clinical guidance until the evidence becomes available to support a formal guideline. The scope of the position statement was wide-ranging and included: evidence that serrated lesions have premalignant potential; detection and resection of serrated lesions; surveillance strategies after detection of serrated lesions; special situations-serrated polyposis syndrome (including surgery) and serrated lesions in colitis; education, audit and benchmarks and research questions. Statements on these issues were proposed where the evidence was deemed sufficient, and re-evaluated modified via a Delphi process until >80% agreement was reached. The Grading of Recommendations, Assessment, Development and Evaluations (GRADE) tool was used to assess the strength of evidence and strength of recommendation for finalised statements. Key recommendation: we suggest that until further evidence on the efficacy or otherwise of surveillance are published, patients with sessile serrated lesions (SSLs) that appear associated with a higher risk of future neoplasia or colorectal cancer (SSLs ≥10 mm or serrated lesions harbouring dysplasia including traditional serrated adenomas) should be offered a one-off colonoscopic surveillance examination at 3 years (weak recommendation, low quality evidence, 90% agreement).
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Affiliation(s)
- James E East
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Wendy S Atkin
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Adrian C Bateman
- Department of Cellular Pathology, Southampton General Hospital, Southampton, UK
| | - Susan K Clark
- The Polyposis Registry, St. Mark's Hospital, London, UK
| | - Sunil Dolwani
- Cancer Screening, Prevention and Early Diagnosis Group, Division of Population Medicine, Cardiff University, Cardiff, UK
| | - Shara N Ket
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Simon J Leedham
- Gastrointestinal Stem-cell Biology Laboratory, Oxford Centre for Cancer Gene Research, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Perminder S Phull
- Department of Digestive Disorders, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Matt D Rutter
- Department of Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, Cleveland, UK
- School of Medicine, Durham University, Durham, UK
| | - Neil A Shepherd
- Gloucestershire Cellular Pathology Laboratory, Cheltenham General Hospital, Cheltenham, UK
| | - Ian Tomlinson
- Oxford Centre for Cancer Gene Research, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Colin J Rees
- School of Medicine, Durham University, Durham, UK
- Department of Gastroenterology, South Tyneside NHS Foundation Trust, South Shields, UK
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Mikhaleva LM, Komleva RA, Biryukov AE, Shakhpazyan NK. [Serrated adenomas of the colon: Clinical, morphological, and molecular genetic characteristics]. Arkh Patol 2017; 79:19-27. [PMID: 28295004 DOI: 10.17116/patol201779119-27] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
AIM to investigate the clinical, morphological, and molecular genetic characteristics of serrated adenomas of the colon. MATERIAL AND METHODS The study included 82 colon adenomas from 63 patients aged 29 to 81 years, who underwent colonoscopy with biopsy or polypectomy. The mean age of men was 63.3 years; that of women was 56.8 years. Comprehensive clinical, morphological, immunohistochemical, and molecular genetic examinations were made. RESULTS The histological examination showed that sessile serrated adenomas (SSA) of the colon were most common (46.4%), while hyperplastic polyp (HP) and traditional serrated adenoma (TSA) were found less often and with the same frequency (26.8%). The most typical location of SSA was the right colon; that of TSA was the left one. HP was detected equally on both sides of the colon. The immunohistochemical examination of the subtypes revealed no significant differences in the expression of markers. An analytical panel of antibodies against Desmin, Podoplanin (D2-40), CK20, CD34, Ki-67, Muc2, CEA, and CDX2 was used when identifying dysplasia areas, suspecting malignancy with invasion into the muscular layer of the mucous membrane and when determining the possible presence of emboli in blood and lymph vessels. BRAF gene mutation was identified in half of SSA cases; genetic BRAF mutation was observed in 41.7% of HP cases; genetic KRAS mutation was seen in 16.6%. The patients with TSA showed KRAS and BRAF mutations in 58.4 and 8.3% of cases, respectively. Mutations of these genes were absent. CONCLUSION The study revealed that the subtypes of serrated adenomas substantially differ by sex, age, localization, and molecular genetic characteristics.
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Affiliation(s)
- L M Mikhaleva
- Research Institute of Human Morphology, Moscow, Russia; City Clinical Hospital Thirty-One, Moscow Healthcare Department, Moscow, Russia
| | - R A Komleva
- Research Institute of Human Morphology, Moscow, Russia
| | - A E Biryukov
- Research Institute of Human Morphology, Moscow, Russia; City Clinical Hospital Thirty-One, Moscow Healthcare Department, Moscow, Russia
| | - N K Shakhpazyan
- City Clinical Hospital Thirty-One, Moscow Healthcare Department, Moscow, Russia
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Bolger WE, Joshi AS, Spear S, Nelson M, Govindaraj K. Gene Expression Analysis in Sinonasal Polyposis before and after Oral Corticosteroids: A Preliminary Investigation. Otolaryngol Head Neck Surg 2016; 137:27-33. [PMID: 17599560 DOI: 10.1016/j.otohns.2007.01.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Accepted: 01/18/2007] [Indexed: 11/22/2022]
Abstract
OBJECTIVE: To characterize gene expression in sinonasal polyps and to gain insight into change in expression after oral corticosteroid treatment. STUDY DESIGN AND METHODS: Nasal polyps were obtained before and after oral corticosteroid treatment and gene expression was analyzed with a focused gene array technique. RESULTS: Pretreated sinonasal polyps demonstrated high gene expression for chemokine and leukotriene receptor genes (CCR2, CCR5, CX3CL1, and LTB4R) in all patients. After treatment, the global effects of corticosteroids were evident on gene expression. CONCLUSIONS: Gene array techniques hold promise as a research method in sinonasal polyposis. The potential benefits, as well as the potential challenges, in using these research methods will be discussed.
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Affiliation(s)
- William E Bolger
- Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD 20817, USA.
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Abstract
Although the majority of gastric carcinomas are sporadic, approximately 10% show familial aggregation, and a hereditary cause is determined in 1%-3% cases. Of these, hereditary diffuse gastric cancer is the most recognized predisposition syndrome. Although rare, the less commonly known syndromes also confer a markedly increased risk for development of gastric cancer. Identification and characterization of these syndromes require a multidisciplinary effort involving oncologists, surgeons, genetic counselors, biologists, and pathologists. This article reviews the molecular genetics, clinical and pathologic features, surveillance guidelines, and preventive measures of common and less common hereditary gastric cancer predisposition syndromes.
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Affiliation(s)
- Namrata Setia
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jeffrey W Clark
- Department of Hematology/Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Dan G Duda
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Theodore S Hong
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Eunice L Kwak
- Department of Hematology/Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - John T Mullen
- Department of Surgical Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Gregory Y Lauwers
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA
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Huang L, Meng Q, Zhang C, Sun Y, Bai Y, Li S, Deng X, Wang B, Yu W, Zhao M, Li X. Gene-gene interaction of CFH, ARMS2, and ARMS2/HTRA1 on the risk of neovascular age-related macular degeneration and polypoidal choroidal vasculopathy in Chinese population. Eye (Lond) 2015; 29:691-8. [PMID: 25771815 PMCID: PMC4429281 DOI: 10.1038/eye.2015.32] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 02/03/2015] [Indexed: 11/08/2022] Open
Abstract
PURPOSE To evaluate the association and interaction of five single-nucleotide polymorphisms (SNPs) in three genes (CFH, ARMS2, and ARMS2/HTRA1) with neovascular age-related macular degeneration (nAMD) and polypoidal choroidal vasculopathy (PCV) in Chinese population. METHODS A total of 300 nAMD and 300 PCV patients and 301 normal subjects participated in the present study. The allelic variants of rs800292, rs2274700, rs3750847, rs3793917, and rs1065489 were determined by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Gene-gene interactions were evaluated by the data mining approach multifactor-dimensionality reduction (MDR) method. RESULTS The risk alleles of CFH rs800292, rs2274700, ARMS2 rs3057847, and ARMS2/HTRA1 rs3793917 showed significant difference between nAMD or PCV patients and controls (all P<0.01). The homozygosity of risk alleles for rs800292, rs2274700, rs3750847, and rs3793917 were significantly different between nAMD patients and controls (all P<0.01), and predisposed to PCV patients (all P<0.01). After cross-validation consistency (CVC) and permutation tests, the two-locus model rs2274700_rs3750847 has a balanced accuracy of 64.37% in predicting nAMD disease risk. The one-marker model, rs3750847, and two-locus model rs2274700_rs3750847 has a balanced accuracy of 66.07% and 65.89% in predicting PCV disease risk, respectively. Furthermore, CFH rs1065489 did not show significant association with nAMD (P>0.01), but was strongly associated with PCV in Chinese patients (P<0.001). CONCLUSIONS In this study, we found that the interaction of ARMS2 and ARMS2/HTRA1 is significantly associated with nAMD, and the interaction of CFH and ARMS2 is pronounced in PCV development in Chinese population.
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Affiliation(s)
- L Huang
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Q Meng
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - C Zhang
- Department of Clinical Epidemiology, Peking University People's Hospital, Beijing, China
| | - Y Sun
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Y Bai
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - S Li
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - X Deng
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - B Wang
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - W Yu
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - M Zhao
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - X Li
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Abdominal Surgical Oncology, Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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Kycler W, Korski K, Loziński C, Teresiak-Mańczak A, Przybyła A, Mackiewicz A, Cybulski Z, Lamperska K. The anti-cancer actions of O6-methylguanine-DNA-methyltransferase in relation to colon polyps. Pharmacol Rep 2014; 66:1060-4. [PMID: 25443735 DOI: 10.1016/j.pharep.2014.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 05/05/2014] [Accepted: 06/25/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND Genetic variability in DNA repair genes may contribute to differences in DNA repair capacity and susceptibility to colon polyps and cancer. In this study, we examined the role of MGMT polymorphisms in colon polyps formation. METHODS PCR-SSCP analysis was performed included 254 patients with colon polyps and 330 controls. RESULTS The homozygous F84F genotype was significantly more prevalent in study group than in controls. The polymorphic allele 84F was more frequent appeared in group of older patients and in group of smoking patients. On the other hand, there were no association between 84F and gender, size of polyps, cancer family history. CONCLUSIONS We concluded that high frequency of 84F allele in the group of patients may suggest the role of the MGMT variant in colon polyps etiology.
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Affiliation(s)
- Witold Kycler
- Department of Oncological Surgery II, Greater Poland Cancer Centre, Poznań, Poland.
| | - Konstanty Korski
- Department of Pathology, Greater Poland Cancer Centre, Poznań, Poland
| | - Cezary Loziński
- Department of Oncological Surgery II, Greater Poland Cancer Centre, Poznań, Poland
| | | | | | - Andrzej Mackiewicz
- University of Medical Sciences, Poznań, Poland; Department of Cancer Diagnostics and Immunology, Greater Poland Cancer Centre, Poznań, Poland
| | - Zefiryn Cybulski
- Microbiology Laboratory, Greater Poland Cancer Centre, Poznań, Poland
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Liang XY, Chen LJ, Ng TK, Tuo J, Gao JL, Tam POS, Lai TYY, Chan CC, Pang CP. FPR1 interacts with CFH, HTRA1 and smoking in exudative age-related macular degeneration and polypoidal choroidal vasculopathy. Eye (Lond) 2014; 28:1502-10. [PMID: 25277308 PMCID: PMC4268466 DOI: 10.1038/eye.2014.226] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 08/12/2014] [Indexed: 12/31/2022] Open
Abstract
PURPOSE To determine the genetic association of an inflammation-related gene, formyl peptide receptor 1 (FPR1), in exudative age-related macular degeneration (AMD) and polypoidal choroidal vasculopathy (PCV). METHODS The coding region of FPR1 gene was sequenced in 554 unrelated Chinese individuals: 155 exudative AMD patients, 179 PCV patients, and 220 controls. Interactions and combined effects of FPR1 with complement factor H (CFH), high temperature requirement factor A1 (HTRA1), and smoking were also investigated. RESULTS A total of 28 polymorphisms in FPR1 were identified. Single nucleotide polymorphisms (SNP) rs78488639 increased the risk to exudative AMD (P=0.043) and PCV (P=0.016), whereas SNP rs867229 decreased the risk to exudative AMD (P=0.0026), but not PCV. Homozygous G allele of rs1042229 was associated with exudative AMD (P=0.0394, odds ratio (OR)=2.27, 95% confident interval: 1.08-4.74), but not with PCV. Exudative AMD, but not PCV, was associated with the heterozygous genotypes of rs2070746 (P=0.019, OR=0.57) and rs867229 (P=0.0082, OR=0.54). Significantly, interactions were identified among FPR1 rs78488639, CFH rs800292, and HTRA1 rs11200638 in both exudative AMD and PCV. Combined heterozygous risk alleles of CFH rs800292 GA and FPR1 rs78488639 CA were posed to PCV (P=2.22 × 10(-4), OR=10.47), but not exudative AMD. Furthermore, FPR1 rs78488639 CA combining with HTRA1 rs11200638 and smoking was also predisposed risks to exudative AMD and PCV. CONCLUSION FPR1 is associated with exudative AMD and PCV in a Hong Kong Chinese cohort. FPR1 rs78488639 interacted with CFH rs800292, HTRA1 rs11200638, and smoking, enhancing risk to exudative AMD and PCV.
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Affiliation(s)
- X Y Liang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Kowloon, Hong Kong
| | - L J Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Kowloon, Hong Kong
| | - T K Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Kowloon, Hong Kong
| | - J Tuo
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - J-L Gao
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - P O S Tam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Kowloon, Hong Kong
| | - T Y Y Lai
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Kowloon, Hong Kong
| | - C-C Chan
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - C P Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Kowloon, Hong Kong
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Li Q, Ge X, Xu X, Zhong Y, Qie Z. Comparison of the gene expression profiles between gallstones and gallbladder polyps. Int J Clin Exp Pathol 2014; 7:8016-8023. [PMID: 25550845 PMCID: PMC4270579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 11/01/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND Gallstones and gallbladder polyps (GPs) are two major types of gallbladder diseases that share multiple common symptoms. However, their pathological mechanism remains largely unknown. The aim of our study is to identify gallstones and GPs related-genes and gain an insight into the underlying genetic basis of these diseases. METHODS We enrolled 7 patients with gallstones and 2 patients with GP for RNA-Seq and we conducted functional enrichment analysis and protein-protein interaction (PPI) networks analysis for identified differentially expressed genes (DEGs). RESULTS RNA-Seq produced 41.7 million in gallstones and 32.1 million pairs in GPs. A total of 147 DEGs was identified between gallstones and GPs. We found GO terms for molecular functions significantly enriched in antigen binding (GO:0003823, P=5.9E-11), while for biological processes, the enriched GO terms were immune response (GO:0006955, P=2.6E-15), and for cellular component, the enriched GO terms were extracellular region (GO:0005576, P=2.7E-15). To further evaluate the biological significance for the DEGs, we also performed the KEGG pathway enrichment analysis. The most significant pathway in our KEGG analysis was Cytokine-cytokine receptor interaction (P=7.5E-06). PPI network analysis indicated that the significant hub proteins containing S100A9 (S100 calcium binding protein A9, Degree=94) and CR2 (complement component receptor 2, Degree=8). CONCLUSION This present study suggests some promising genes and may provide a clue to the role of these genes playing in the development of gallstones and GPs.
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Affiliation(s)
- Quanfu Li
- Department of Hepatobiliary Surgery, The Second Hospital of BaodingBaoding 071051, China
| | - Xin Ge
- National Hepatobiliary and Enteric Surgery, Central South UniversityChangsha 410008, China
| | - Xu Xu
- Department of Hepatobiliary Surgery, The Second Hospital of BaodingBaoding 071051, China
| | - Yonggang Zhong
- Department of Hepatobiliary Surgery, The Second Hospital of BaodingBaoding 071051, China
| | - Zengwang Qie
- Department of Hepatobiliary Surgery, The Second Hospital of BaodingBaoding 071051, China
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Kumar S, Berriochoa Z, Ambati BK, Fu Y. Angiographic features of transgenic mice with increased expression of human serine protease HTRA1 in retinal pigment epithelium. Invest Ophthalmol Vis Sci 2014; 55:3842-50. [PMID: 24854852 PMCID: PMC4581615 DOI: 10.1167/iovs.13-13111] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 05/09/2014] [Indexed: 01/27/2023] Open
Abstract
PURPOSE Polypoidal choroidal vasculopathy (PCV) is characterized by a branching vascular network (BVN) of choroid that terminates in polypoidal dilations. We have previously reported the generation of the first PCV model by transgenically expressing human HTRA1 (hHTRA1(+)), a multifunctional serine protease, in mouse RPE. The purpose of this study was to perform a comprehensive examination of the PCV phenotypes (e.g., lesion type and distribution) of hHTRA1(+) mice by a variety of in vivo imaging techniques. METHODS We generated improved hHTRA1(+) mice with a more consistent phenotype. Transgenic mice were examined by indocyanine green angiography (ICGA), fluorescein angiography, funduscopy, and spectral-domain optical coherence tomography. In particular, we performed ICGA by tail vein injection of ICG to obtain high-quality ICGA comparable to human studies in terms of the three phases (early, middle, and late) of angiography. RESULTS The polyps can be detected in the early "fill-in" phase of ICGA, and most lesions become visible in the middle phase and are more distinct in the late phase with the fading of surrounding vessels. In addition to the two key features of PCV (polypoidal dilations and BVNs), hHTRA1(+) mice exhibit other features of PCV (i.e., late geographic hyperfluorescence, pigment epithelial detachment, and hyperfluorescent plaque). Polypoidal lesions appear as reddish orange nodules on funduscopy. CONCLUSIONS Transgenic hHTRA1(+) mice exhibit a rich spectrum of "clinical" features that closely mimic human PCV. This animal model will serve as an invaluable tool for future mechanistic and translational studies of PCV and other forms of choroidal vasculopathies.
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Affiliation(s)
- Sandeep Kumar
- Department of Ophthalmology and Visual Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah, United States
| | - Zachary Berriochoa
- Department of Ophthalmology and Visual Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah, United States
| | - Balamurali K Ambati
- Department of Ophthalmology and Visual Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah, United States
- Department of Neurobiology and Anatomy, University of Utah Health Sciences Center, Salt Lake City, Utah, United States
| | - Yingbin Fu
- Department of Ophthalmology and Visual Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah, United States
- Department of Neurobiology and Anatomy, University of Utah Health Sciences Center, Salt Lake City, Utah, United States
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Liu K, Chen LJ, Lai TYY, Tam POS, Ho M, Chiang SWY, Liu DTL, Young AL, Yang Z, Pang CP. Genes in the high-density lipoprotein metabolic pathway in age-related macular degeneration and polypoidal choroidal vasculopathy. Ophthalmology 2014; 121:911-6. [PMID: 24393350 DOI: 10.1016/j.ophtha.2013.10.042] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 10/28/2013] [Accepted: 10/28/2013] [Indexed: 11/18/2022] Open
Abstract
PURPOSE To investigate the associations of genetic variants in the high-density lipoprotein (HDL) metabolism pathway with neovascular age-related macular degeneration (AMD) and polypoidal choroidal vasculopathy (PCV). DESIGN Cross-sectional, case-control association study. PARTICIPANTS A Chinese case-control group of 200 neovascular AMD patients, 233 PCV patients, and 275 control subjects. METHODS Eight single nucleotide polymorphisms (SNPs) from 6 genes of the HDL metabolism pathway and 2 known AMD-associated SNPs, rs800292 (from complement factor H [CFH]) and rs11200638 (from HtrA serine peptidase 1 [HTRA1]), were genotyped in all study subjects using the TaqMan genotyping technology (Applied Biosystems, Foster City, CA). MAIN OUTCOME MEASURES Allele and genotypic frequencies of selected SNPs. RESULTS The SNP rs3764261 in the cholesteryl ester transfer protein (CETP) gene was associated significantly with neovascular AMD (P = 1.82×10(-4); odds ratio [OR], 1.89) and PCV (P = 4.04×10(-4); OR, 1.80). The associations remained significant after adjusting for the CFH SNP rs800292 and the HTRA1 SNP rs11200638. A significant interaction between the CETP SNP rs3764261 and the CFH SNP rs800292 existed in both neovascular AMD and PCV, the rs800292 G allele conferring a significantly increased risk of the diseases only in individuals carrying the risk allele T of rs3764261. A borderline association was detected between the ATP-binding cassette, subfamily G, member 1 (ABCG1) gene SNP rs57137919 and PCV (P = 0.03). CONCLUSIONS Our results showed that CETP is a susceptibility gene for neovascular AMD and PCV and that ABCG1 a putative gene for PCV. CETP exerts a modifying effect on CFH in the genetic risk. Our data suggest a link of the HDL metabolism pathway with neovascular AMD and PCV.
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Affiliation(s)
- Ke Liu
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Timothy Y Y Lai
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China
| | - Pancy O S Tam
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Sylvia W Y Chiang
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China
| | - David T L Liu
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Zhenglin Yang
- The Sichuan Provincial Key Laboratory for Human Disease Gene Study, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong, China.
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Kalin A, Merideth MA, Regier DS, Blumenthal GM, Dennis PA, Stratton P. Management of reproductive health in Cowden syndrome complicated by endometrial polyps and breast cancer. Obstet Gynecol 2013; 121:461-464. [PMID: 23344409 DOI: http:/10 1097/aog.0b013e318270444f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
BACKGROUND Cowden syndrome is an autosomal-dominant condition associated with mutations in the tumor suppressor gene PTEN. Gynecologic malignancies are common with a 5-10% risk of endometrial cancer and 25-50% risk of breast cancer. CASE A 37-year-old woman with a history of breast cancer, other neoplasms, and multiple skin lesions was diagnosed with Cowden syndrome after a germline PTEN mutation was identified. The endometrium had high glucose uptake on positron emission tomography scan and was irregularly thickened on ultrasonography; biopsy revealed endometrial polyps and simple hyperplasia. Fifteen months later, hysteroscopy again confirmed numerous benign endometrial polyps. CONCLUSION Recurrent, multiple endometrial polyps portend a high risk of endometrial cancer in women with Cowden syndrome. Monitoring for malignancy and consideration of hysterectomy after childbearing is completed is warranted.
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Affiliation(s)
- Asli Kalin
- University College London Hospitals, London, United Kingdom; the Medical Genetics Branch, National Human Genome Research Institute, the Intramural Office of Rare Diseases, Office of the Director, the Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, and the Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland; and Children's National Medical Center, Department of Pediatrics, Washington, DC
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Jiang J, Huang L, Yu W, Wu X, Zhou P, Li X. Overexpression of HTRA1 leads to down-regulation of fibronectin and functional changes in RF/6A cells and HUVECs. PLoS One 2012; 7:e46115. [PMID: 23056244 PMCID: PMC3466263 DOI: 10.1371/journal.pone.0046115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 08/28/2012] [Indexed: 11/18/2022] Open
Abstract
Multiple genetic studies have suggested that high-temperature requirement serine protease (HTRA1) is associated with polypoidal choroidal vasculopathy (PCV). To date, no functional studies have investigated the biological effect of HTRA1 on vascular endothelial cells, essential vascular components involved in polypoidal vascular abnormalities and arteriosclerosis-like changes. In vitro studies were performed to investigate the effect of HTRA1 on the regulation of fibronectin, laminin, vascular endothelial growth factor (VEGF), platelet derived growth factor receptor (PDGFR) and matrix metalloparoteinases 2 (MMP-2) and the role of HTRA1 in choroid-retina endothelial (RF/6A) and human umbilical vein endothelial (HUVEC) cells. Lentivirus-mediated overexpression of HTRA1 was used to explore effects of the protease on RF/6A and HUVEC cells in vitro. HTRA1 overexpression inhibited the proliferation, cell cycle, migration and tube formation of RF/6A and HUVEC cells, effects that might contribute to the early stage of PCV pathological lesions. Fibronectin mRNA and protein levels were significantly down-regulated following the upregulation of HTRA1, whereas the expressions of laminin, VEGF and MMP-2 were unaffected by alterations in HTRA1 expression. The decreased biological function of vascular endothelial cells and the degradation of extracellular matrix proteins, such as fibronectin, may be involved in a contributory role for HTRA1 in PCV pathogenesis.
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Affiliation(s)
- Jingjing Jiang
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Ophthalmology, China-Japan Friendship Hospital, Beijing, China
| | - Lvzhen Huang
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - Wenzhen Yu
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - Xi Wu
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - Peng Zhou
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China
| | - Xiaoxin Li
- Department of Ophthalmology, Peking University People's Hospital, Beijing, China
- Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
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Park DH, Kim IT. LOC387715/HTRA1 variants and the response to combined photodynamic therapy with intravitreal bevacizumab for polypoidal choroidal vasculopathy. Retina 2012; 32:299-307. [PMID: 21817962 DOI: 10.1097/iae.0b013e318225290f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
PURPOSE To investigate whether there was an association with the LOC387715/HTRA1 variants and a response to combined photodynamic therapy with intravitreal bevacizumab for polypoidal choroidal vasculopathy. METHODS Combined photodynamic therapy with intravitreal bevacizumab was repeated every 3 months until the disappearance of angiographic signs in the active lesions of 51 eyes with polypoidal choroidal vasculopathy who were followed-up for at least 12 months. Patients were genotyped for LOC387715 and HTRA1 polymorphisms. RESULTS Although there was no significant difference in the baseline best-corrected visual acuity and fluorescein angiography-guided greatest linear dimension among the 3 genotypes in both genes, there was a significant difference at 12 months (P < 0.05, respectively). For LOC387715, the TT genotype showed greater fluorescein angiography-guided greatest linear dimension than the TG and GG genotypes (P = 0.035 and 0.006, respectively). The best-corrected visual acuity of the GG genotype was better than the TT and TG (P = 0.029 and 0.045, respectively). For HTRA1, the AA genotype showed greater fluorescein angiography-guided greatest linear dimension than AG and GG (P = 0.042 and 0.017, respectively). The best-corrected visual acuity of GG genotype was better than AA and AG (P = 0.018 and 0.040, respectively). CONCLUSION After combined photodynamic therapy with intravitreal bevacizumab treatment, LOC387715 TT and HTRA1 AA genotype had poorer outcomes at 12 months, suggesting a pharmacogenetic relationship.
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Affiliation(s)
- Dong Ho Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, Jung-gu, Daegu, Korea
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Park DH, Kim IT. Association of ARMS2/HTRA1 variants with polypoidal choroidal vasculopathy phenotype in a Korean population. Jpn J Ophthalmol 2012; 56:60-7. [PMID: 21959923 DOI: 10.1007/s10384-011-0089-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2011] [Accepted: 08/01/2011] [Indexed: 10/17/2022]
Abstract
PURPOSE To investigate whether ARMS2 (rs10490924)/HTRA1 (rs11200638) variants are associated with polypoidal choroidal vasculopathy (PCV) in a Korean population and with various PCV phenotypes. METHODS A case-control study comprised of 103 patients with PCV and 112 control subjects. The PCV and control groups were genotyped for ARMS2 (rs10490924) and HTRA1 (rs11200638) polymorphisms. Clinical characteristics were evaluated, including best-corrected visual acuity (BCVA), fundus findings, and angiographic findings, at first visit. RESULTS Two single nucleotide polymorphisms generated highly significant allelic associations with PCV. The frequency of vitreous hemorrhage (VH) was different among the genotypes with respect to both rs10490924 and rs11200638. The frequency of the T allele of rs10490924 was higher in PCV patients with VH than in PCV patients without VH. The frequency of the A allele of rs11200638 was higher in PCV patients with VH than in PCV patients without VH. In rs10490924, the mean BCVA of the GG genotype group was better than that of the TT and TG genotype groups. In rs11200638, the mean BCVA of the GG genotype group was better than that of the AA and AG genotype groups. CONCLUSIONS The ARMS2 (rs10490924)/HTRA1 (rs11200638) variants are significantly associated with the risk of PCV in a Korean population. ARMS2/HTRA1 variants contribute significantly to the PCV phenotypes, including frequency of VH and mean BCVA at baseline.
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Affiliation(s)
- Dong Ho Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, #50 Samduk-dong-2-ga, Jung-gu, Daegu 700-721, South Korea
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Lynch HT, Snyder C, Davies JM, Lanspa S, Lynch J, Gatalica Z, Graeve V, Foster J. FAP, gastric cancer, and genetic counseling featuring children and young adults: a family study and review. Fam Cancer 2011; 9:581-8. [PMID: 20532639 DOI: 10.1007/s10689-010-9352-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Familial adenomatous polyposis is a highly complex and multifaceted colorectal cancer prone disorder which is often significantly confounded by extracolonic cancers inclusive of gastric cancer, a significant problem in the Orient. Gastric cancer in familial adenomatous polyposis is heavily influenced by fundic gland polyps which are often so voluminous as to defy effective endoscopic surveillance. This study involves more than two decades of investigation of an attenuated familial adenomatous polyposis family where gastric cancer posed an early diagnostic problem because it was obscured by multiple fundic gland polyps. Fundic gland polyps are common in familial adenomatous polyposis and attenuated familial adenomatous polyposis and, if voluminous, may interfere with effective endoscopic gastric cancer surveillance. This family is believed to be the first of its type reported with focus upon education and genetic counseling in the setting of a family information service. Cancer control in familial adenomatous polyposis may be partially resolved through use of familial colorectal cancer registries, with greater attention to family history and its interpretation, genetic counseling, and clinical translation for diagnosis and management.
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Affiliation(s)
- Henry T Lynch
- Department of Preventive Medicine and Public Health, Creighton University School of Medicine, 2500 California Plaza, Omaha, NE 68178, USA.
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Ameri P, Bovio M, Mareni C, Murialdo G. Severe bone disease with bilateral femur fracture in a young woman after gastrectomy for gastric polyposis with SMAD4 mutation. J Endocrinol Invest 2010; 33:130-1. [PMID: 19564721 DOI: 10.1007/bf03346568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rubio CA. Plugs clog the glandular outlets in fundic gland polyps. Int J Clin Exp Pathol 2009; 3:69-74. [PMID: 19918330 PMCID: PMC2776267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/22/2009] [Accepted: 07/22/2009] [Indexed: 05/28/2023]
Abstract
A systematic histologic analysis of 62 gastric fundic gland polyps (FGP) was carried out. All FGP (100%) showed foveolar cells with hypertrophic cytoplasm. In 95% of the FGP, parietal cells ballooned into the lumen and in 93%, exfoliated anucleated structures with eosinophilic granules were found. Plugs of anucleated structures with eosinophilic granules, most likely derived from exfoliated parietal cells, were found to clog the outlets of the glands in 86% of the FGP. None of the 30 control gastric biopsies without FGP had similar cellular aberrations. FGP seems to evolve by cellular aberrations affecting parietal cells. This is not surprising considering that genetic mutations are recorded in FGP with a common APC/b-catenin pathway in both FAP and sporadic cases. The genetic mutations in FGP might alter the biological behavior of the parietal cells, leading to increased exfoliation with clogging of the outlets of the glands. Thus, the blocking of the glandular outflow by plugs of anucleated structures with eosinophilic granules is the most likely cause for the cystic accumulation of "normal" glandular secretions.
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Affiliation(s)
- Carlos A Rubio
- Gastrointestinal and Liver Pathology Research Laboratory, Department of Pathology, Karolinska Institute and University Hospital, Stockholm, Sweden.
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Guida M, Sanguedolce F, Bufo P, Di Spiezio Sardo A, Bifulco G, Nappi C, Pannone G. Aberrant DNA hypermethylation of hMLH-1 and CDKN2A/p16 genes in benign, premalignant and malignant endometrial lesions. EUR J GYNAECOL ONCOL 2009; 30:267-270. [PMID: 19697618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
PURPOSE OF INVESTIGATION aberrant gene function and transcriptional silencing by CpG island hypermethylation have become a critical component in the initiation and progression of endometrial cancer. The aim of this study was to investigate the methylation status of genes associated with aberrant DNA hypermethylation in benign, premalignant and malignant endometrial lesions. METHODS using nested methylation-specific PCR, we assessed the methylation of the promoter regions of two genes, hMLH1 and CDKN2A/p16, in tissue samples from endometrial polyps (EP), atypical hyperplasia (AH) and endometrial cancer (EC). RESULTS the promoter region of at least one of the two genes was aberrantly methylated in EP (hMLH1 42%, CDKN2A/p16 16%), AH (hMLH1 16%, CDKN2A/p16 50%), EC (hMLH1 50%, CDKN2A/p16 75%). Interestingly, hypermethylation of both genes was found with significant increased frequence in AH and EC, but not in benign lesions. CONCLUSIONS our preliminary findings seem to suggest that the association of the two genes hMLH1 and CDKN2A/p16 may allow a differential diagnosis between benign and premalignant/malignant endometrial lesions; this further supports the hypothesis that methylation of such DNA mismatch repair and tumour-suppressor genes may be associated with endometrial carcinogenesis thus representing a valuable target for selective pharmacologic therapy.
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Affiliation(s)
- M Guida
- Department of Gynaecology and Obstetrics, University of Naples "Federico II", Italy
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Wang J, Han DM, Kang HW, Ma LJ, Ye JY, Xiao Y. [Primary study on glycan structure in pathopoiesis mechanism of recurrent respiratory papillomatosis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2008; 43:355-359. [PMID: 18717311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To compare the molecular basis difference between recurrent respiratory papillomatosis (RRP) and vocal cord polyp, to analyze the expression of glycan structural genes, and to discuss the pathopoiesis mechanism of RRP. METHODS The gene expressing profile between the 3 groups papilloma and the vocal cord polyp regarded as normal larynx epithelium were compared using mRNA parallel amplify and the human genome gene expressing microarray. Through cluster analysis, Gene Ontology function gene annotation and path way analysis, the relative gene of RRP and HPV infection were acquired. RESULTS According to three microarrays results, total 567 expression changed genes related to HPV induce RRP were acquired. A serial change of glycan structure biosynthesis and degradation pathways was significant. The expression of dolichyl-phosphate mannosyltransferase polypeptide 1 (DPM1), asparagine-linked glycosylation 1 homolog (ALG1), fucosyltransferase 8 (FUT8) and alpha-mannosidase 1A (MAN1A) were regulated and beta-hexosaminidase (HEXB), beta1-galactosidase (GLB1), exostoses 1 (EXT1), fucosyltransferase (FUT) reduced expression and heparan sulfate 3-O-sulfotransferase 1 (HS3ST3A1) increased expression. The two related enzymes of the glycosphingolipids which is the main composed of the cell membrane, beta-3-N-acetylglucosaminyltransferase 4 (B3GNT4) and UDP-glucose ceramide glucosyltransferase (UGCG) increase expression, HEXB and GLB1 reduced expression. CONCLUSIONS The alteration of the coding genes of glycan structure biosynthesis and degradation pathways were significantly and characteristically in pathopoiesis mechanism of RRP. This abnormality may be the beginning of tumor form HPV infection.
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Affiliation(s)
- Jun Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Beijing 100730, China
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Huang DY, Yang WY, Guo WW, Han DY. [mRNA expression of extracellular matrix proteins of vocal fold polyps and Reinke edema]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2007; 42:843-848. [PMID: 18300448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To investigate the pathogenic mechanism of vocal fold polyps and Reinke's edema. METHODS A reverse-transcriptase polymerase chain reaction (RT-PCR) technique was adopted, mRNA levels of 9 proteins were measured in 12 vocal fold polyps, 2 Reinke's edema and 5 normal vocal folds (from total laryngectomy). RESULTS The results showed that in the vocal fold polyps, mRNA levels of collagenase and fibromodulin descended and levels of fibronectin increased (P < 0.05). mRNA levels of lysyl oxidase and hyaluronic acid synthase 2 had no statistic difference between lesions and normal vocal folds (P > 0.05). mRNA express of tropoelastin exon, elastase and hyaluronidase was positive in part of lesion tissue and positive in all normal vocal folds. mRNA of procollagen I was negative in both groups. In the Reinke's edema, mRNA express of fibronectin was close to vocal fold polyps and mRNA express of fibromodulin was close to normal vocal folds. CONCLUSIONS It was speculated phonation trauma and vocal fold restoring to trauma played an important role in pathogenic mechanism. Fibromodulin and fibronectin were two components involved in the disorders.
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Affiliation(s)
- Dong-Yan Huang
- Department of Otorhinolaryngology Head and Neck Surgery, General Hospital of Chinese People's Liberation Army, Beijing 100853, China
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Abstract
OBJECTIVE Screening colonoscopy has been shown to reduce mortality and cancer stage in hereditary nonpolyposis colorectal cancer (HNPCC) individuals. However, the benefit of screening in intermediate risk groups is unknown. The most recent national guidelines have recommended a reduction of screening frequency for the intermediate risk group. Therefore, this study aims to compare the results of colonoscopic screening in HNPCC and intermediate risk groups and assess the effect of the most recent screening protocol recommendations. METHOD A total of 244 individuals; 108 from HNPCC families (28 mismatch repair gene carriers) and 136 from intermediate risk families were referred for regular colonoscopic screening by the Regional Genetics Service. Findings from 417 colonoscopies performed between 1992 and 2003 were evaluated. RESULTS A total of three cancers, 39 adenomas and 41 hyperplastic polyps were found in the HNPCC group compared with one cancer, 22 adenomas and 19 hyperplasic polyps in the intermediate risk group. If the recent screening guidelines for the intermediate group were applied, then 89 (44%) fewer colonoscopies would have been performed. Although no cancers would have been missed, six adenomas (mean size = 5.7 mm, range 2-10 mm) with two graded as severely dysplasic and six hyperplastic polyps would not have been detected. CONCLUSION The detection rate and distribution of adenomas were similar in both groups. If the new colonoscopic screening recommendations for the intermediate risk group had been applied, a small number of significant lesions would have been missed.
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Affiliation(s)
- T Mak
- Department of General Surgery, Manchester Royal Infirmary, and Academic Unit of Medical Genetics and Regional Genetics Service, St. Mary's Hospital, Manchester, UK.
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Lu JB, Li XQ, Zhu XZ. [Distinction between lymphoma-like lesions and lymphoma of uterine cervix: a clinicopathologic study of 26 cases]. Zhonghua Bing Li Xue Za Zhi 2007; 36:297-301. [PMID: 17706135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
OBJECTIVE To study the clinicopathologic features and differential diagnosis of lymphoma-like lesions and lymphoma of uterine cervix. METHODS Clinical data and hematoxylin and eosin-stained slides of 10 cases of lymphoma-like lesion and 16 cases of lymphoma of uterine cervix were reviewed. Immunohistochemical study for B- and T-cell markers and light chains (kappa, lambda) were performed on paraffin sections. The rearrangement status of immunoglobulin heavy chain (IgH) gene was analyzed with semi-nested polymerase chain reaction in 4 cases lymphoma-like lesion and 4 cases of lymphoma of uterine cervix. RESULTS The age of patients with lymphoma-like lesion ranged from 24 to 54 years (medium = 43 years). The lesion generally presented with cervical erosion or polyp. Microscopically, it is characterized by focal or diffuse superficial infiltration of immunoblast-like large B cells intermingled with a polymorphic population of inflammatory cells, including plasma cells, eosinophils and neutrophils. Maturation of the transformed large B cells was also noticed. On the other hand, the age of the patients with lymphoma of uterine cervix varied from 28 to 78 years (medium = 58 years). Cervical mass or diffuse enlargement of cervix were the commonest clinical findings. The cases included 12 examples of diffuse large B-cell lymphoma and 4 examples of follicular lymphoma. The former was characterized by a diffuse monomorphic population of large atypical lymphoid cells, while neoplastic follicles were identified in the latter. Neither polymorphic inflammatory infiltrates nor maturation phenomenon was found. The immunostaining for kappa and lambda light chains was inconclusive. Molecular study showed clonal rearrangement of IgH gene in all cases of cervical lymphoma, as well as 2 cases of lymphoma-like lesion. CONCLUSIONS The distinction between lymphoma-like lesion and lymphoma of uterine cervix depends primarily on the clinical and histopathologic features. Assay for rearrangement of IgH gene may be helpful in differential diagnosis, though monoclonality can be detected in some benign lesions as well.
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MESH Headings
- Adult
- Aged
- Antigens, CD20/metabolism
- CD79 Antigens/metabolism
- Diagnosis, Differential
- Female
- Gene Rearrangement, B-Lymphocyte, Light Chain
- Humans
- Immunoglobulin G/genetics
- Lymphoma, Follicular/genetics
- Lymphoma, Follicular/metabolism
- Lymphoma, Follicular/pathology
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/metabolism
- Lymphoma, Large B-Cell, Diffuse/pathology
- Middle Aged
- Polyps/genetics
- Polyps/metabolism
- Polyps/pathology
- Uterine Cervical Erosion/genetics
- Uterine Cervical Erosion/metabolism
- Uterine Cervical Erosion/pathology
- Uterine Cervical Neoplasms/genetics
- Uterine Cervical Neoplasms/metabolism
- Uterine Cervical Neoplasms/pathology
- Young Adult
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Affiliation(s)
- Jin-biao Lu
- Department of Pathology, Cancer Hospital, Fudan University, Shanghai 200032, China
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Lécuru F, Metzger U, Scarabin C, Le Frère Belda MA, Olschwang S, Laurent Puig P. Hysteroscopic findings in women at risk of HNPCC. Results of a prospective observational study. Fam Cancer 2007; 6:295-9. [PMID: 17415684 DOI: 10.1007/s10689-007-9123-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2006] [Accepted: 02/25/2007] [Indexed: 10/23/2022]
Abstract
OBJECTIVES To report the feasibility and results of diagnostic hysteroscopy in women at risk of HNPCC. METHODS Fifty-seven women with mismatch repair gene mutations (n = 11) or Amsterdam II criteria (n = 46) were followed-up prospectively from January 1999 to March 2005. Flexible hysteroscopy was performed once a year. The endometrium was sampled routinely. RESULTS Of 91 attempted hysteroscopies, 10 failed. The endometrial mucosa appeared normal in 34 cases. Polyps were seen in 12 cases, atrophy in 11, hypertrophy in 10, and fibroids in 7; two hysteroscopies suspected malignancy. A micropolypoid appearance was visualized during five hysteroscopies (5/81, 6%). Of the 86 endometrial biopsy attempts, 64 were successful and showed atrophy (n = 14), proliferation (n = 12), secretion (n = 27), polyps (n = 6), simple hyperplasia without atypia (n = 3), or cancer (n = 2). Micropolypoid appearance was not associated with a specific histological pattern. Operative hysteroscopy was done in 24 cases; in two patients with apparently benign focal lesions the results showed simple hyperplasia without atypias. Five patients underwent hysterectomy (simple hyperplasia without atypias, n = 2; endometrioid adenocarcinoma, n = 2; or secretory mucosa, n = 1). This study led to diagnosis of endometrial simple hyperplasia in 6% of cases and of cancer in 3%. CONCLUSIONS In patients at risk of HNPCC, hysteroscopy appears feasible to screen endometrial pathology. Two cancers have been diagnosed over 91 patient-years at risk. Hysteroscopy should be compared to sonography as a screening tool in women at risk of HNPCC.
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Affiliation(s)
- Fabrice Lécuru
- Gynecologic and Oncologic Surgery Department, European Georges Pompidou Hospital, AP-HP, Paris, France.
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Abstract
INTRODUCTION Attenuated adenomatous polyposis coli (AAPC) is a variant of the familial adenomatous polyposis (FAP) characterized by the occurrence of sparse polyps in the colon, stomach, and duodenum with a late onset of colorectal cancer. The AAPC syndrome is associated with mutations at the 5' region of the APC gene. Until recently, the fragment encompassing codons 157 and 170 was considered as boundary for the described cases of AAPC and FAP syndromes. MATERIALS AND METHODS This study describes a case of the AAPC syndrome caused by a CCTT deletion at codon 173, with polyps diagnosed at the age of 17. The father and grandfather of the proband died of colorectal cancer (CRC), which developed from untreated polyps, at the age 35 and 40, respectively. RESULTS AND DISCUSSIONS In the case of the proband's father, the untreated polyps led to death after 12 years. The proband revealed a low number of polyps and an extra colon feature characteristic of AAPC, but the polyps onset and the death of CRC of two family members, who refused colectomy, was very early and characteristic for FAP. An atypical course of AAPC must be taken into consideration both in genetic counseling and in qualifying the patients with AAPC for the surgical treatment.
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Affiliation(s)
- A Plawski
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska, 32, 60-479 Poznan, Poland.
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Baran AA, Silverman KA, Zeskand J, Koratkar R, Palmer A, McCullen K, Curran WJ, Edmonston TB, Siracusa LD, Buchberg AM. The modifier of Min 2 (Mom2) locus: embryonic lethality of a mutation in the Atp5a1 gene suggests a novel mechanism of polyp suppression. Genome Res 2007; 17:566-76. [PMID: 17387143 PMCID: PMC1855180 DOI: 10.1101/gr.6089707] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Inactivation of the APC gene is considered the initiating event in human colorectal cancer. Modifier genes that influence the penetrance of mutations in tumor-suppressor genes hold great potential for preventing the development of cancer. The mechanism by which modifier genes alter adenoma incidence can be readily studied in mice that inherit mutations in the Apc gene. We identified a new modifier locus of ApcMin-induced intestinal tumorigenesis called Modifier of Min 2 (Mom2). The polyp-resistant Mom2R phenotype resulted from a spontaneous mutation and linkage analysis localized Mom2 to distal chromosome 18. To obtain recombinant chromosomes for use in refining the Mom2 interval, we generated congenic DBA.B6 ApcMin/+, Mom2R/+ mice. An intercross revealed that Mom2R encodes a recessive embryonic lethal mutation. We devised an exclusion strategy for mapping the Mom2 locus using embryonic lethality as a method of selection. Expression and sequence analyses of candidate genes identified a duplication of four nucleotides within exon 3 of the alpha subunit of the ATP synthase (Atp5a1) gene. Tumor analyses revealed a novel mechanism of polyp suppression by Mom2R in Min mice. Furthermore, we show that more adenomas progress to carcinomas in Min mice that carry the Mom2R mutation. The absence of loss of heterozygosity (LOH) at the Apc locus, combined with the tendency of adenomas to progress to carcinomas, indicates that the sequence of events leading to tumors in ApcMin/+ Mom2R/+ mice is consistent with the features of human tumor initiation and progression.
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Affiliation(s)
- Amy A. Baran
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Karen A. Silverman
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Joseph Zeskand
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Revati Koratkar
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Ashley Palmer
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Kristen McCullen
- Department of Obstetrics and Gynecology, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Walter J. Curran
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Tina Bocker Edmonston
- Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Linda D. Siracusa
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
| | - Arthur M. Buchberg
- Kimmel Cancer Center, Thomas Jefferson University, Jefferson Medical College, Philadelphia, Pennsylvania 19107, USA
- Corresponding author.E-mail ; fax (215) 923-4153
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Mahfouz ME, Elsheikh MN, Ghoname NF. Molecular profile of the antrochoanal polyp: up-regulation of basic fibroblast growth factor and transforming growth factor beta in maxillary sinus mucosa. ACTA ACUST UNITED AC 2006; 20:466-70. [PMID: 16955781 DOI: 10.2500/ajr.2006.20.2894] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Various pathogenetic mechanisms have been proposed to explain the development of antrochoanal polyps (ACPs); however, the cause is still largely unknown. The aim of this study was to characterize the expression and the potential role of a battery of molecular markers in the development of ACPs. A prospective controlled study of a case series was performed. METHODS Tissue samples of maxillary sinus mucosa were obtained from 14 patients with ACPs, 17 patients with chronic nonpolypoid maxillary sinusitis, and 4 patients with normal maxillary sinus mucosa; RNAs were extracted from the sinus mucosa, and semiquantitative reverse transcription-polymerase chain reaction was performed for basic fibroblast growth factor, transforming growth factor P, and mucin genes (MUC), MUC5AC, MUC5B, and MUC8, to investigate their expression. RESULTS The expression of basic fibroblast growth factor and transforming growth factor beta was significantly higher in ACPs than in chronic rhinosinusitis and healthy mucosa. Meanwhile, the levels of expression of MUC genes were higher in ACPs and chronic rhinosinusitis compared with healthy mucosa. CONCLUSION These findings suggest that ACPs may represent an inflammatory reaction caused by overproduction of tissue-derived growth factors in an inductive environment.
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Duflo SM, Thibeault SL, Li W, Smith ME, Schade G, Hess MM. Differential gene expression profiling of vocal fold polyps and Reinke's edema by complementary DNA microarray. Ann Otol Rhinol Laryngol 2006; 115:703-14. [PMID: 17044544 DOI: 10.1177/000348940611500910] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Our purpose was to determine whether complementary DNA (cDNA) microarray analysis (MA) can establish distinct gene expression profiles for 2 phenotypically similar vocal fold lesions: Reinke's edema (RE) and polyps. Established transcript profiles can provide insight into the molecular and cellular processes involved in these diseases. METHODS Eleven RE specimens and 17 polyps were analyzed with MA for 8,745 genes. Further MA profiling was attempted within each lesion group to identify molecular markers for reflux exposure and smoking. Prediction analysis was used to predict lesion classification for 2 unclassified samples. A real-time polymerase chain reaction was performed to corroborate MA transcript levels for selected significant genes. RESULTS Sixty-five genes were found to differentiate RE and polyps (p = .0088). For RE, 19 genes were differentiated for reflux exposure (p = .016). No genes were found to differentiate smokers from nonsmokers. For polyps, no genes were found to differentiate for reflux (p = .16) and smoking (p = .565). Categorization of unclassified lesions was possible with a minimum of 13 genes. CONCLUSIONS We demonstrate the feasibility of benign lesion classification based on MA. Microarray analysis is useful not only for improving diagnosis and classification of such lesions, but also for potentially generating prognostic indicators and targets for therapy.
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Affiliation(s)
- Suzy M Duflo
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, School of Medicine, The University of Utah, Salt Lake City, Utah, USA
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Thakur N, Reddy DN, Rao GV, Mohankrishna P, Singh L, Chandak GR. A novel mutation in STK11 gene is associated with Peutz-Jeghers Syndrome in Indian patients. BMC Med Genet 2006; 7:73. [PMID: 17010210 PMCID: PMC1609100 DOI: 10.1186/1471-2350-7-73] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Accepted: 09/30/2006] [Indexed: 02/07/2023]
Abstract
BACKGROUND Peutz-Jeghers syndrome (PJS) is a rare multi-organ cancer syndrome and understanding its genetic basis may help comprehend the molecular mechanism of familial cancer. A number of germ line mutations in the STK11 gene, encoding a serine threonine kinase have been reported in these patients. However, STK11 mutations do not explain all PJS cases. An earlier study reported absence of STK11 mutations in two Indian families and suggested another potential locus on 19q13.4 in one of them. METHODS We sequenced the promoter and the coding region including the splice-site junctions of the STK11 gene in 16 affected members from ten well-characterized Indian PJS families with a positive family history. RESULTS We did not observe any of the reported mutations in the STK11 gene in the index patients from these families. We identified a novel pathogenic mutation (c.790_793 delTTTG) in the STK11 gene in one index patient (10%) and three members of his family. The mutation resulted in a frame-shift leading to premature termination of the STK11 protein at 286th codon, disruption of kinase domain and complete loss of C-terminal regulatory domain. Based on these results, we could offer predictive genetic testing, prenatal diagnosis and genetic counselling to other members of the family. CONCLUSION Ours is the first study reporting the presence of STK11 mutation in Indian PJS patients. It also suggests that reported mutations in the STK11 gene are not responsible for the disease and novel mutations also do not account for many Indian PJS patients. Large-scale genomic deletions in the STK11 gene or another locus may be associated with the PJS phenotype in India and are worth future investigation.
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Affiliation(s)
- Nikita Thakur
- Genome Research Group, Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500 007. India
| | - D Nageshwar Reddy
- Asian Institute of Gastroenterology, Punjagutta, Hyderabad 500 082. India
| | - G Venkat Rao
- Asian Institute of Gastroenterology, Punjagutta, Hyderabad 500 082. India
| | - P Mohankrishna
- Genome Research Group, Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500 007. India
| | - Lalji Singh
- Genome Research Group, Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500 007. India
| | - Giriraj R Chandak
- Genome Research Group, Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500 007. India
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Abstract
Gastrointestinal malignancies account for about 20% of all cancers worldwide. It is widely accepted that cancer evolves through several stepwise morphological stages such as the adenoma-carcinoma and hyperplastic polyp-serrated adenoma-carcinoma sequences in colorectal cancers, and the metaplasia-dysplasia-carcinoma sequences in esophageal and gastric cancers. The morphological progression is associated with the accumulation of multiple genetic and epigenetic events. It is now recognized that epigenetic silencing of gene expression by CpG island methylation is an important alternative mechanism of inactivating tumor suppressor genes. Inflammatory conditions of the gastrointestinal and pancreaticobiliary tracts and liver such as Barrett esophagus, Helicobacter pylori gastritis, inflammatory bowel disease and viral hepatitis, are associated with increased frequency of malignancies and CpG methylation. In addition, CpG methylation is present in aberrant crypt foci and pancreatic intraepithelial neoplasia that are considered putative precursors of colon and pancreatic carcinomas, respectively. Understanding of these early genetic and epigenetic changes allows for the discoveries of potential screening, monitoring and therapeutic strategies. Targeting of the epigenetic changes that occur before the development of frank malignancy offers a potential chemopreventive strategy.
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Cohen NA, Widelitz JS, Chiu AG, Palmer JN, Kennedy DW. Familial aggregation of sinonasal polyps correlates with severity of disease. Otolaryngol Head Neck Surg 2006; 134:601-4. [PMID: 16564380 DOI: 10.1016/j.otohns.2005.11.042] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2005] [Accepted: 11/30/2005] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Investigate familial aggregation of sinonasal polyps (NP) and correlate the severity of chronic rhinosinusitis (CRS) with a family history of NP. STUDY DESIGN AND SETTING A questionnaire documenting NP, asthma, or aspirin intolerance was completed by 174 CRS patients. Severity of sinus disease was stratified as isolated NP, NP with concomitant asthma, and Samter's triad (polyps, asthma, and aspirin intolerance). RESULTS Compared to controls, CRS patients had a higher incidence of a family history of NP. Additionally, patients stratified with severe CRS had a higher incidence of relatives with NPs. CONCLUSIONS Familial aggregation of NP is demonstrated in CRS patients and correlates with disease severity. EBM RATING B-2b.
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Affiliation(s)
- Noam A Cohen
- Department of Otorhinolaryngology, Head and Neck Surgery, Division of Rhinology, University of Pennsylvania, Philadelphia, PA, USA.
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Gallione CJ, Richards JA, Letteboer TGW, Rushlow D, Prigoda NL, Leedom TP, Ganguly A, Castells A, Ploos van Amstel JK, Westermann CJJ, Pyeritz RE, Marchuk DA. SMAD4 mutations found in unselected HHT patients. J Med Genet 2006; 43:793-7. [PMID: 16613914 PMCID: PMC2563178 DOI: 10.1136/jmg.2006.041517] [Citation(s) in RCA: 161] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Hereditary haemorrhagic telangiectasia (HHT) is an autosomal dominant disease exhibiting multifocal vascular telangiectases and arteriovenous malformations. The majority of cases are caused by mutations in either the endoglin (ENG) or activin receptor-like kinase 1 (ALK1, ACVRL1) genes; both members of the transforming growth factor (TGF)-beta pathway. Mutations in SMAD4, another TGF-beta pathway member, are seen in patients with the combined syndrome of juvenile polyposis (JP) and HHT (JP-HHT). METHODS We sought to determine if HHT patients without any apparent history of JP, who were undergoing routine diagnostic testing, would have mutations in SMAD4. We tested 30 unrelated HHT patients, all of whom had been referred for DNA based testing for HHT and were found to be negative for mutations in ENG and ALK1. RESULTS Three of these people harboured mutations in SMAD4, a rate of 10% (3/30). The SMAD4 mutations were similar to those found in other patients with the JP-HHT syndrome. CONCLUSIONS The identification of SMAD4 mutations in HHT patients without prior diagnosis of JP has significant and immediate clinical implications, as these people are likely to be at risk of having JP-HHT with the associated increased risk of gastrointestinal cancer. We propose that routine DNA based testing for HHT should include SMAD4 for samples in which mutations in neither ENG nor ALK1 are identified. HHT patients with SMAD4 mutations should be screened for colonic and gastric polyps associated with JP.
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Affiliation(s)
- C J Gallione
- Duke University Medical Center, Durham, NC 27710, USA
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42
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Zhang ZH, Wu SD, Gao H, Shi G, Jin JZ, Kong J, Tian Z, Su Y. Expression of pituitary adenylate cyclase-activating polypeptide 1 and 2 receptor mRNA in gallbladder tissue of patients with gallstone or gallbladder polyps. World J Gastroenterol 2006; 12:1468-71. [PMID: 16552823 PMCID: PMC4124332 DOI: 10.3748/wjg.v12.i9.1468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To detect the expression of pituitary adenylate cyclase-activating polypeptide receptor 1 (VPCAP1-R) and VPCAP2-R mRNA in gallbladder tissues of patients with gallstone or gallbladder polyps.
METHODS: The expression of VPCAP1-R and VPCAP2-R mRNA in gallbladder tissues was detected in 25 patients with gallstone, 8 patients with gallbladder polyps and 7 donors of liver transplantation by reverse transcription polymerase chain reaction (RT-PCR).
RESULTS: The VPCAP2-R mRNA expression level in the control group (1.09±0.58) was lower than that in the gallbladder polyp group (1.64 ± 0.56) and the gallstone group (1.55±0.45) (P < 0.05) while the VPCAP1-R mRNA expression level in the control group (1.15 ± 0.23) was not apparently different from that in the gallbladder polyp group (1.28±0.56) and the gallstone group (1.27 ± 0.38).
CONCLUSION: The abnormal expression of VPCAP2-R mRNA in gallbladder tissue may play a role in the formation of gallbladder stone and gallbladder polyps.
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Affiliation(s)
- Zhen-Hai Zhang
- No.2 Department of General Surgery, Second Affiliated Hospital, China Medical University, Shenyang, 110004, Liaoning Province, China
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Alameda F, Bellosillo B, Baró T, Pijuan L, Baldrich C, Losa Dominguez F, Munne A, Lloreta J, Serrano S. Large cell lymphoma-like reaction in a cervical polyp. Gynecol Oncol 2005; 99:481-5. [PMID: 16054203 DOI: 10.1016/j.ygyno.2005.06.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2005] [Revised: 05/24/2005] [Accepted: 06/03/2005] [Indexed: 12/01/2022]
Abstract
BACKGROUND Inflammatory lesions of the uterine cervix are very common, and although lymphomas in this location are rare, the differential diagnosis between both diseases must be considered in some cases and may be difficult to achieve. CASE A 37-year-old woman in good health with a cervical polyp, showing a lymphoma-like reaction with blastic appearance, which was initially interpreted as a diffuse large-cell lymphoma. The immunohistochemical and molecular studies showed the reactive origin of the lesion. CONCLUSIONS Immunohistochemical and molecular biology studies may be useful to dilucidate the reactive or neoplastic origin of these lesions.
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Affiliation(s)
- Francesc Alameda
- Department of Pathology, Hospital Universitari del Mar, Passeig Maritim 25-29, 08003 Barcelona, Catalunya, Spain.
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Handra-Luca A, Condroyer C, de Moncuit C, Tepper M, Fléjou JF, Thomas G, Olschwang S. Vessels' morphology in SMAD4 and BMPR1A-related juvenile polyposis. Am J Med Genet A 2005; 138A:113-7. [PMID: 16152648 DOI: 10.1002/ajmg.a.30897] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Juvenile polyposis syndrome is a hamartomatous intestinal polyposis associated with malignant changes in 20% of patients at an early age. Germline mutations mostly involve two genes, SMAD4 and BMPR1, with no strong evidence of phenotype-genotype correlation, which could be predictive of the specific long-term evolution. In contrast, PTEN mutations are more commonly associated with Cowden and related diseases. Forty-two unrelated patients affected by juvenile polyposis syndrome were analyzed for germline alterations in the BMPR1A and SMAD4 genes, and for clinical and histological features. Deleterious mutations were found in 14/42 (33%) patients: 5 in BMPR1A and 9 in SMAD4. Low-grade adenomas were present in both SMAD4 and BMPR1A mutation carriers; only patients with SMAD4 mutations harbored carcinoma lesions (5/9). Malformative vessels were present in all SMAD4 related polyps when the mutation involved codons prior to position 423. No gastric polyps were observed in BMPR1A mutation carriers. SMAD4 germline mutations are responsible for a more aggressive digestive phenotype in patients with juvenile polyposis. The presence of malformative vessels within the stromal component might be a useful tool to drive the subsequent genetic and clinical management.
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Hayashi M, Imamura T, Miyazono K. [BMP receptors and signal transduction]. Nihon Rinsho 2005; 63 Suppl 10:399-403. [PMID: 16279670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Affiliation(s)
- Makoto Hayashi
- Department of Biochemistry, The Cancer Institute of the Japanese Foundation for Cancer Research
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Yamada Y, Jackson-Grusby L, Linhart H, Meissner A, Eden A, Lin H, Jaenisch R. Opposing effects of DNA hypomethylation on intestinal and liver carcinogenesis. Proc Natl Acad Sci U S A 2005; 102:13580-5. [PMID: 16174748 PMCID: PMC1224663 DOI: 10.1073/pnas.0506612102] [Citation(s) in RCA: 210] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Genome-wide DNA hypomethylation and concomitant promoter-specific tumor suppressor gene hypermethylation are among the most common molecular alterations in human neoplasia. Consistent with the notion that both promoter hypermethylation and genome-wide hypomethylation are functionally important in tumorigenesis, genetic and/or pharmacologic reduction of DNA methylation levels results in suppression or promotion of tumor incidence, respectively, depending on the tumor cell type. For instance, DNA hypomethylation promotes tumors that rely predominantly on loss of heterozygosity (LOH) or chromosomal instability mechanisms, whereas loss of DNA methylation suppresses tumors that rely on epigenetic silencing. Mutational and epigenetic silencing events in Wnt pathway genes have been identified in human colon tumors. We used Apc(Min/+) mice to investigate the effect of hypomethylation on intestinal and liver tumor formation. Intestinal carcinogenesis in Apc(Min/+) mice occurs in two stages, with the formation of microadenomas leading to the development of macroscopic polyps. Using Dnmt1 hypomorphic alleles to reduce genomic methylation, we observed elevated incidence of microadenomas that were associated with LOH at Apc. In contrast, the incidence and growth of macroscopic intestinal tumors in the same animals was strongly suppressed. In contrast to the overall inhibition of intestinal tumorigenesis in hypomethylated Apc(Min/+) mice, hypomethylation caused development of multifocal liver tumors accompanied by Apc LOH. These findings support the notion of a dual role for DNA hypomethylation in suppressing later stages of intestinal tumorigenesis, but promoting early lesions in the colon and liver through an LOH mechanism.
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Affiliation(s)
- Yasuhiro Yamada
- Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Nine Cambridge Center, Cambridge, MA 02142, USA
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Mann EA, Steinbrecher KA, Stroup C, Witte DP, Cohen MB, Giannella RA. Lack of guanylyl cyclase C, the receptor for Escherichia coli heat-stable enterotoxin, results in reduced polyp formation and increased apoptosis in the multiple intestinal neoplasia (Min) mouse model. Int J Cancer 2005; 116:500-5. [PMID: 15825168 DOI: 10.1002/ijc.21119] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Guanylyl cyclase C (GC-C), a transmembrane receptor for bacterial heat-stable enterotoxin and the mammalian peptides guanylin and uroguanylin, mediates intestinal ion secretion and affects intestinal cell growth via cyclic GMP signaling. In intestinal tumors, GC-C expression is maintained while guanylin and uroguanylin expression is lost, suggesting a role for GC-C activation in tumor formation or growth. We show by in situ hybridization that GC-C expression is retained in adenomas from multiple intestinal neoplasia (Apc(Min/+)) mice. In order to determine the in vivo role of GC-C in intestinal tumorigenesis, we generated Apc(Min/+) mice homozygous for a targeted deletion of the gene encoding GC-C and hypothesized that these mice would have increased tumor multiplicity and size compared to wild-type Apc(Min/+) mice on the same genetic background. In contrast, the absence of GC-C resulted in a reduction of median polyp number by 55%. There was no change in the median diameter of polyps, suggesting no effect on tumor growth. Somatic loss of the wild-type Apc allele, an initiating event in intestinal tumorigenesis, also occurred in polyps from GC-C-deficient Apc(Min/+) mice. We have found increased levels of apoptosis as well as increased caspase-3 and caspase-7 gene expression in the intestines of GC-C-deficient Apc(Min/+) mice compared with Apc(Min/+) mice. We propose that these alterations are a possible compensatory mechanism by which loss of GC-C signaling also affects tumorigenesis.
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MESH Headings
- Animals
- Apoptosis
- Caspase 3
- Caspase 7
- Caspases/biosynthesis
- Cell Transformation, Neoplastic
- Disease Models, Animal
- Gene Expression Regulation
- Guanylate Cyclase/genetics
- Guanylate Cyclase/physiology
- Intestinal Neoplasms/genetics
- Intestinal Neoplasms/physiopathology
- Intestinal Neoplasms/veterinary
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Neoplasms, Second Primary/genetics
- Neoplasms, Second Primary/physiopathology
- Neoplasms, Second Primary/veterinary
- Polyps/genetics
- Polyps/physiopathology
- Polyps/veterinary
- Receptors, Enterotoxin
- Receptors, Guanylate Cyclase-Coupled
- Receptors, Peptide/genetics
- Receptors, Peptide/physiology
- Signal Transduction
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Affiliation(s)
- Elizabeth A Mann
- Division of Digestive Diseases, VA Medical Center and University of Cincinnati, Cincinnati, OH 45267, USA.
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Shikata K, Kukita Y, Matsumoto T, Esaki M, Yao T, Mochizuki Y, Hayashi K, Iida M. Gastric juvenile polyposis associated with germline SMAD4 mutation. Am J Med Genet A 2005; 134:326-9. [PMID: 15754356 DOI: 10.1002/ajmg.a.30482] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We treated a 39-year-old woman with hypoproteinemia and anemia who had profuse gastric polyposis. Radiographic and endoscopic examination showed numerous polyps restricted to the stomach. The patient had pulmonary arteriovenous malformations in the left lung. Histological examination of the resected stomach revealed the gastric polyposis to be composed of cystic dilatation of the glands with small areas of adenocarcinoma. These findings were compatible with gastric juvenile polyposis (GJP) accompanied by gastric cancer. Analysis of genomic DNA revealed that the patient had truncating mutation of SMAD4, a responsible gene for juvenile polyposis (JP). Our case suggests that SMAD4 is possibly a responsible gene for GJP.
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Affiliation(s)
- Kentaro Shikata
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Abraham SC, Park SJ, Cruz-Correa M, Houlihan PS, Half EE, Lynch PM, Wu TT. Frequent CpG island methylation in sporadic and syndromic gastric fundic gland polyps. Am J Clin Pathol 2004; 122:740-6. [PMID: 15491970 DOI: 10.1309/4qun-j4f2-7qk7-rr0g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023] Open
Abstract
We studied methylation of 2 tumor suppressor genes (p14, p16) and 4 MINT (methylated in tumor) clones (MINT1, MINT2, MINT25, MINT31) among 51 fundic gland polyps (FGPs) and 27 normal gastric body biopsy samples using bisulfite treatment of genomic DNA followed by methylation-specific polymerase chain reaction. Thirty-two FGPs were syndromic polyps from 14 patients with familial adenomatous polyposis (FAP); 19 were sporadic FGPs from 15 patients without FAP. Significantly higher mean methylation indices were found between FGPs and normal gastric mucosa (P = .012). FGPs arising in a background of proton pump inhibitor (PPI) effect had significantly higher mean methylation indices than those that did not (P = .023). Perhaps because sporadic FGPs were more likely to be associated with PPI effect than were FAP-associated FGPs, they also demonstrated higher mean methylation indices than syndromic polyps (P = .024). Among FAP-associated FGPs, there was no statistical difference in methylation indices between polyps that were dysplastic, indefinite for dysplasia, or nondysplastic (P = .87). Epigenetic alterations involving methylation of CpG islands might have a role in the development of some FGPs, particularly those with a PPI effect. They do not account for the presence or absence of a dysplastic phenotype in FGPs.
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Affiliation(s)
- Susan C Abraham
- Department of Pathology, Mayo Clinic, Rochester, MN 55905, USA
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Sekine S, Shimoda T, Nimura S, Nakanishi Y, Akasu T, Katai H, Gotoda T, Shibata T, Sakamoto M, Hirohashi S. High-grade dysplasia associated with fundic gland polyposis in a familial adenomatous polyposis patient, with special reference to APC mutation profiles. Mod Pathol 2004; 17:1421-6. [PMID: 15494708 DOI: 10.1038/modpathol.3800178] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report a patient with familial adenomatous polyposis who developed high-grade dysplasia against a background of fundic gland polyposis. Two large high-grade dysplasia lesions were found in the gastric body, where numerous fundic gland polyps were present. In both lesions, the dysplastic epithelium covered non-neoplastic oxyntic glands that occasionally exhibit cystic changes. A genetic analysis for APC (adenomatous polyposis coli) revealed a somatic 50-bp deletion involving codons 1502-1517 and 2-bp deletion at codon 1465 in each lesion of high-grade dysplasia. In contrast, six of the 18 fundic gland polyps were found to harbor an identical mutation: 1-bp insertion at codon 1556. Both lesions of high-grade dysplasia and the fundic gland polyps were similarly located in the fundic gland area and were caused by the inactivation of APC; however, their mutation profiles of APC were different. These results imply that fundic gland polyps and high-grade dysplasia of the stomach have distinct preferences for APC genotypes in their development.
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Affiliation(s)
- Shigeki Sekine
- Pathology Division, National Cancer Center Research Institute, Tokyo 104-0045, Japan
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