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Xie Z, Zhou G, Zhang M, Han J, Wang Y, Li X, Wu Q, Li M, Zhang S. Recent developments on BMPs and their antagonists in inflammatory bowel diseases. Cell Death Discov 2023; 9:210. [PMID: 37391444 DOI: 10.1038/s41420-023-01520-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/15/2023] [Accepted: 06/22/2023] [Indexed: 07/02/2023] Open
Abstract
Inflammatory bowel diseases (IBDs), including ulcerative colitis, and Crohn's disease, are intestinal disorders characterized by chronic relapsing inflammation. A large proportion of patients with IBD will progress to develop colitis-associated colorectal cancer due to the chronic intestinal inflammation. Biologic agents that target tumour necrosis factor-α, integrin α4β7, and interleukin (IL)12/23p40 have been more successful than conventional therapies in treating IBD. However, drug intolerance and loss of response are serious drawbacks of current biologics, necessitating the development of novel drugs that target specific pathways in IBD pathogenesis. One promising group of candidate molecules are bone morphogenetic proteins (BMPs), members of the TGF-β family involved in regulating morphogenesis, homeostasis, stemness, and inflammatory responses in the gastrointestinal tract. Also worth examining are BMP antagonists, major regulators of these proteins. Evidence has shown that BMPs (especially BMP4/6/7) and BMP antagonists (especially Gremlin1 and follistatin-like protein 1) play essential roles in IBD pathogenesis. In this review, we provide an updated overview on the involvement of BMPs and BMP antagonists in IBD pathogenesis and in regulating the fate of intestinal stem cells. We also described the expression patterns of BMPs and BMP antagonists along the intestinal crypt-villus axis. Lastly, we synthesized available research on negative regulators of BMP signalling. This review summarizes recent developments on BMPs and BMP antagonists in IBD pathogenesis, which provides novel insights into future therapeutic strategies.
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Affiliation(s)
- Zhuo Xie
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Gaoshi Zhou
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Mudan Zhang
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Jing Han
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Ying Wang
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Xiaoling Li
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Qirui Wu
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Manying Li
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China
| | - Shenghong Zhang
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P. R. China.
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Chen Z, Yuan L, Li X, Yu J, Xu Z. BMP2 inhibits cell proliferation by downregulating EZH2 in gastric cancer. Cell Cycle 2022; 21:2298-2308. [PMID: 35856444 DOI: 10.1080/15384101.2022.2092819] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Gastric cancer is among the most common gastrointestinal malignancies. Recent studies have suggested that bone morphogenetic protein-2 (BMP2) is related to the development and progression of various cancers. Meanwhile, evidence suggests that BMP2 might lead to epigenetic changes in gastric cancer. Thus, we investigated whether BMP2 plays a role in the development of gastric cancer via epigenetic regulation. Cell viability, colony formation, and cell cycle assays were performed to assess the effect of recombinant human BMP2 (rhBMP2) in gastric cancer cells. LDN-193189 and Noggins were used as antagonists of the canonical BMP-SMAD signaling pathway. The protein levels were determined using a western blot analysis. Lentiviral vectors with EZH2 shRNA or EZH2 overexpression were used to mediate the role of EZH2 and the relationship between BMP2 and EZH2 in gastric cancer. We found that rhBMP2 inhibits cell proliferation by arresting the cell cycle in HGC-27 and SNU-216 gastric cancer cells. Neither LDN-193189 nor Noggins, antagonists of the canonical BMP-SMAD signaling pathway, can reverse the effect of rhBMP2 on gastric cancer. Molecularly, rhBMP2 downregulates the expression of EZH2 and H3K27me3, leading to increases in P16 and P21 and decreases in CDK2, CDK4, and CDK6. Altogether, in this study, we demonstrate that BMP2 serves as a tumor suppressor in gastric cancer cells by downregulating EZH2 and H3K27me3 through the non-SMAD BMP pathway, suggesting that BMP2 might be a new therapeutic target for gastric cancer treatment. Abbreviations: BMP: bone morphogenetic protein; TGF-β: transforming growth factor-beta; EZH2: enhancer of zeste homolog 2; H3K27me3: trimethylation histone H3 lysine 27; HRECs: human retinal endothelial cells; PcG: polycomb group; PRC: polycomb repressive complexes.
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Affiliation(s)
- Zilu Chen
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Liyue Yuan
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaopeng Li
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Junhui Yu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhengshui Xu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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3
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Sun Z, Cai S, Liu C, Cui Y, Ji J, Jiang WG, Ye L. Increased Expression of Gremlin1 Promotes Proliferation and Epithelial Mesenchymal Transition in Gastric Cancer Cells and Correlates With Poor Prognosis of Patients With Gastric Cancer. Cancer Genomics Proteomics 2020; 17:49-60. [PMID: 31882551 DOI: 10.21873/cgp.20167] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/25/2019] [Accepted: 09/27/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND/AIM Gremlin1 (GREM1) plays an important role in certain malignancies by antagonising bone morphogenetic proteins and regulating angiogenesis directly/indirectly. The present study aimed to investigate the role of Gremlin1 in the development and progression of gastric cancer (GC). MATERIALS AND METHODS Expression of GREM1 in GCs was examined using quantitative real time PCR and The Cancer Genomic Atlas (TCGA) data. Influence on cellular functions was determined in both Gremlin1 knockdown and overexpression cell line models. RESULTS GREM1 expression was up-regulated in GCs, which was correlated with poorer survival. Increased GREM1 expression was significantly correlated with tumour growth/invasion and lymphatic metastasis. Gremlin1 promoted proliferation and tumourigenic capacity of GC cells in vitro. GREM1 expression was associated with epithelial mesenchymal transition (EMT), angiogenesis and lymphangiogenesis in GC. CONCLUSION Increased GREM1 expression in GCs is associated with disease progression and poor prognosis in which EMT, angiogenesis and lymphangiogenesis are likely involved.
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Affiliation(s)
- Zhiwei Sun
- Cardiff China Medical Research Collaborative, Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff, U.K.,Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), The VIP-II Gastrointestinal Cancer Division of Medical Department, Peking University Cancer Hospital & Institute, Beijing, P.R. China
| | - Shuo Cai
- Cardiff China Medical Research Collaborative, Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff, U.K
| | - Chang Liu
- Cardiff China Medical Research Collaborative, Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff, U.K
| | - Yuxin Cui
- Cardiff China Medical Research Collaborative, Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff, U.K
| | - Jiafu Ji
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), The VIP-II Gastrointestinal Cancer Division of Medical Department, Peking University Cancer Hospital & Institute, Beijing, P.R. China
| | - Wen G Jiang
- Cardiff China Medical Research Collaborative, Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff, U.K
| | - Lin Ye
- Cardiff China Medical Research Collaborative, Division of Cancer and Genetics, Cardiff University School of Medicine, Cardiff, U.K.
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4
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Zhang Y, Que J. BMP Signaling in Development, Stem Cells, and Diseases of the Gastrointestinal Tract. Annu Rev Physiol 2020; 82:251-273. [PMID: 31618602 DOI: 10.1146/annurev-physiol-021119-034500] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The bone morphogenetic protein (BMP) pathway is essential for the morphogenesis of multiple organs in the digestive system. Abnormal BMP signaling has also been associated with disease initiation and progression in the gastrointestinal (GI) tract and associated organs. Recent studies using animal models, tissue organoids, and human pluripotent stem cells have significantly expanded our understanding of the roles played by BMPs in the development and homeostasis of GI organs. It is clear that BMP signaling regulates GI function and disease progression that involve stem/progenitor cells and inflammation in a tissue-specific manner. In this review we discuss these new findings with a focus on the esophagus, stomach, and intestine.
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Affiliation(s)
- Yongchun Zhang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY 10032, USA; .,Columbia Center for Human Development, Columbia University Medical Center, New York, NY 10032, USA
| | - Jianwen Que
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, New York, NY 10032, USA; .,Columbia Center for Human Development, Columbia University Medical Center, New York, NY 10032, USA
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Miura T, Ishiguro M, Ishikawa T, Okazaki S, Baba H, Kikuchi A, Yamauchi S, Matsuyama T, Uetake H, Kinugasa Y. Methylation of bone morphogenetic protein 2 is associated with poor prognosis in colorectal cancer. Oncol Lett 2019; 19:229-238. [PMID: 31897134 PMCID: PMC6924114 DOI: 10.3892/ol.2019.11091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 10/07/2019] [Indexed: 12/29/2022] Open
Abstract
The present study investigated aberrant methylation in colorectal cancer (CRC) and its impact on characteristics and prognosis of patients with CRC. Bone morphogenetic protein 2 (BMP2) was identified as a target gene in oligonucleotide microarray expression profiling in a previous study. Subsequently, the BMP2 methylation status was assessed in 498 patients with stage I–III CRC using methylation-specific polymerase chain reaction, and the association between BMP2 methylation status, patient characteristics and prognosis was assessed. BMP2 methylation was observed in 302/498 (60.6%) patients and was associated with positive lymph nodes and venous invasion (P<0.05). In the stage III subgroup, overall survival (OS) was significantly worse in the methylated BMP2 group compared with in the unmethylated BMP2 group (P=0.012). BMP2 methylation was identified as an independent factor for poor OS in stage III patients (P=0.041). Notably, in the left-sided stage III CRC subgroup, relapse-free survival and OS were significantly worse in the methylated BMP2 group than in the unmethylated group (P=0.048 and P=0.031, respectively). In conclusion, DNA hypermethylation of BMP2 was a poor prognostic factor in patients with stage III disease, particularly in those with left-sided stage III CRC. BMP2 methylation may be a biomarker for prognosis prediction and treatment decision-making.
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Affiliation(s)
- Tomiyuki Miura
- Department of Gastrointestinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Megumi Ishiguro
- Department of Translational Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Toshiaki Ishikawa
- Department of Specialized Surgeries, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Satoshi Okazaki
- Department of Specialized Surgeries, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Hironobu Baba
- Department of Gastrointestinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Akifumi Kikuchi
- Department of Gastrointestinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Shinichi Yamauchi
- Department of Gastrointestinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Takatoshi Matsuyama
- Department of Gastrointestinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Hiroyuki Uetake
- Department of Specialized Surgeries, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Yusuke Kinugasa
- Department of Gastrointestinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan
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Norollahi SE, Mansour-Ghanaei F, Joukar F, Ghadarjani S, Mojtahedi K, Gharaei Nejad K, Hemmati H, Gharibpoor F, Khaksar R, Samadani AA. Therapeutic approach of Cancer stem cells (CSCs) in gastric adenocarcinoma; DNA methyltransferases enzymes in cancer targeted therapy. Biomed Pharmacother 2019; 115:108958. [PMID: 31075731 DOI: 10.1016/j.biopha.2019.108958] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/03/2019] [Accepted: 05/03/2019] [Indexed: 02/08/2023] Open
Abstract
Cancer stem cells (CSCs) show a remarkable sub class of cancer cells population which have a potential to organize and regulate stemness properties which possess a main particular responsibility for uncontrolled growth in carcinogenesis, production of different cancers in differentiated situation and also resistancy to radiotherapy and chemotherapy. Correspondingly, gastric cancer (GC) as a very serious type in cancer mortality in the world, has received a deep attention in molecular therapy recently. Besides the main characteristics of CSCs like differentiation, epithelial mesenchymal transition, self-renewal and metastasis, they are so effective in expression of stemness genes resistancy in radiotherapy and chemotherapy. In this way, the regulation of epigenetic elements including DNA methylation and the performance of DNA methyltransferase (DNMT) which is a notable epigenetic trait in GC, is of great importance. Inhibitors of DNA methylation are the first epigenetic drugs in cancer therapy. Considerably, recent studies indicate that low doses of DNMT inhibitors have a high potential in sustaining reduced DNA methylation and related with re-expression of silenced genes in tumorigenesis. Importantly, these certain doses have the ability to decrease the carcinogenesis and tumorigenesis in CSC populations within GC. Meaningly, the inhibition of DNMTs are able to reduce the accumulation of tumorigenic ability of GC CSCs. Furthermore, many epigenetic drugs have a great potential in cancer therapy, including histone methyltransferases, lysine demethylases, histone deacetylasesand, bromodomain and extra-terminal domain proteins and DNA methyltransferases inhibitors. In this review article, we try to focus on the therapeutic mechanism of DNMTs alongside with their impact on CSCs in GC.
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Affiliation(s)
- Syedeh Elham Norollahi
- Gastrointestinal and liver diseases research center, Guilan University of Medical Sciences, Rasht, Iran
| | - Fariborz Mansour-Ghanaei
- Gastrointestinal and liver diseases research center, Guilan University of Medical Sciences, Rasht, Iran
| | - Farahnaz Joukar
- Gastrointestinal and liver diseases research center, Guilan University of Medical Sciences, Rasht, Iran
| | - Shervin Ghadarjani
- Department of Neurosurgery, Guilan University of Medical Sciences, Rasht, Iran
| | - Kourosh Mojtahedi
- Gastrointestinal and liver diseases research center, Guilan University of Medical Sciences, Rasht, Iran
| | - Kaveh Gharaei Nejad
- Skin Research Center, Dermatology Department, Guilan University of Medical Sciences, Razi Hospital, Sardare Jangal Street, Rasht, Iran
| | - Hossein Hemmati
- Razi Clinical Research Development Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Faeze Gharibpoor
- Gastrointestinal and liver diseases research center, Guilan University of Medical Sciences, Rasht, Iran
| | - Roya Khaksar
- Gastrointestinal and liver diseases research center, Guilan University of Medical Sciences, Rasht, Iran.
| | - Ali Akbar Samadani
- Gastrointestinal and liver diseases research center, Guilan University of Medical Sciences, Rasht, Iran.
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7
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Fattahi S, Golpour M, Amjadi-Moheb F, Sharifi-Pasandi M, Khodadadi P, Pilehchian-Langroudi M, Ashrafi GH, Akhavan-Niaki H. DNA methyltransferases and gastric cancer: insight into targeted therapy. Epigenomics 2018; 10:1477-1497. [PMID: 30325215 DOI: 10.2217/epi-2018-0096] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Gastric cancer is a major health problem worldwide occupying most frequent causes of cancer-related mortality. In addition to genetic modifications, epigenetic alterations catalyzed by DNA methyltransferases (DNMTs) are a well-characterized epigenetic hallmark in gastric cancer. The reversible nature of epigenetic alterations and central role of DNA methylation in diverse biological processes provides an opportunity for using DNMT inhibitors to enhance the efficacy of chemotherapeutics. In this review, we discussed key factors or mechanisms such as SNPs, infections and genetic modifications that trigger DNMTs level modification in gastric cancer, and their potential roles in cancer progression. Finally, we focused on how inhibitors of the DNMTs can most effectively be used for the treatment of gastric cancer with multidrug resistance.
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Affiliation(s)
- Sadegh Fattahi
- Cellular & Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, 4717647745, Babol, Iran.,North Research Center, Pasteur Institute, Amol, 4615885399, Iran
| | - Monireh Golpour
- Molecular & Cell Biology Research Center, Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Science, Sari, 4817844718, Iran
| | - Fatemeh Amjadi-Moheb
- Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, 4717647745, Babol, Iran
| | - Marzieh Sharifi-Pasandi
- Molecular & Cell Biology Research Center, Student Research Committee, Faculty of Medicine, Mazandaran University of Medical Science, Sari, 4817844718, Iran
| | - Parastesh Khodadadi
- Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, 4717647745, Babol, Iran
| | | | - Gholam Hossein Ashrafi
- School of Life Science, Pharmacy & Chemistry, SEC Faculty, Cancer Theme, Kingston University London, Kingston upon Thames, London KT1 2EE, UK
| | - Haleh Akhavan-Niaki
- Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, 4717647745, Babol, Iran
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8
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Aslani S, Sobhani S, Gharibdoost F, Jamshidi A, Mahmoudi M. Epigenetics and pathogenesis of systemic sclerosis; the ins and outs. Hum Immunol 2018; 79:178-187. [PMID: 29330110 DOI: 10.1016/j.humimm.2018.01.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 12/25/2017] [Accepted: 01/08/2018] [Indexed: 12/22/2022]
Abstract
The pathogenesis of many diseases is influenced by environmental factors which can affect human genome and be inherited from generation to generation. Adverse environmental stimuli are recognized through the epigenetic regulatory complex, leading to gene expression alteration, which in turn culminates in disease outcomes. Three epigenetic regulatory mechanisms modulate the manifestation of a gene, namely DNA methylation, histone changes, and microRNAs. Both epigenetics and genetics have been implicated in the pathogenesis of systemic sclerosis (SSc) disease. Genetic inheritance rate of SSc is low and the concordance rate in both monozygotic (MZ) and dizygotic (DZ) twins is little, implying other possible pathways in SSc pathogenesis scenario. Here, we provide an extensive overview of the studies regarding different epigenetic events which may offer insights into the pathology of SSc. Furthermore, epigenetic-based interventions to treat SSc patients were discussed.
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Affiliation(s)
- Saeed Aslani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Soheila Sobhani
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhad Gharibdoost
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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9
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Fish TJ, Benninghoff AD. DNA methylation in lung tissues of mouse offspring exposed in utero to polycyclic aromatic hydrocarbons. Food Chem Toxicol 2017; 109:703-713. [PMID: 28476633 DOI: 10.1016/j.fct.2017.04.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/29/2017] [Accepted: 04/29/2017] [Indexed: 12/19/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) comprise an important class of environmental pollutants that are known to cause lung cancer in animals and are suspected lung carcinogens in humans. Moreover, evidence from cell-based studies points to PAHs as modulators of the epigenome. The objective of this work was to assess patterns of genome-wide DNA methylation in lung tissues of adult offspring initiated in utero with the transplacental PAH carcinogens dibenzo [def,p]chrysene (DBC) or benzo [a]pyrene (BaP). Genome-wide methylation patterns for normal (not exposed), normal adjacent and lung tumor tissues obtained from adult offspring were determined using methylated DNA immunoprecipitation (MeDIP) with the NimbleGen mouse DNA methylation CpG island array. Lung tumor incidence in 45-week old mice initiated with BaP was 32%, much lower than that of the DBC-exposed offspring at 96%. Also, male offspring appeared more susceptible to BaP as compared to females. Distinct patterns of DNA methylation were associated with non-exposed, normal adjacent and adenocarcinoma lung tissues, as determined by principal components, hierarchical clustering and gene ontology analyses. From these methylation profiles, a set of genes of interest was identified that includes potential important targets for epigenetic modification during the process of lung tumorigenesis in animals exposed to environmental PAHs.
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Affiliation(s)
- Trevor J Fish
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Abby D Benninghoff
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA; School of Veterinary Medicine, Utah State University, Logan, UT 84322, USA.
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Abstract
The bone morphogenetic proteins, (BMP)s are regulatory peptides that have significant effects on the growth and differentiation of gastrointestinal tissues. In addition, the BMPs have been shown to exert anti-inflammatory actions in the gut and to negatively regulate the growth of gastric neoplasms. The role of BMP signaling in the regulation of gastric metaplasia, dysplasia and neoplasia has been poorly characterized. Transgenic expression in the mouse stomach of the BMP inhibitor noggin leads to decreased parietal cell number, increased epithelial cell proliferation, and to the emergence of SPEM. Moreover, expression of noggin increases Helicobacter-induced inflammation and epithelial cell proliferation, accelerates the development of dysplasia, and it increases the expression of signal transducer and activator of transcription 3 (STAT3) and of activation-induced cytidine deaminase (AID). These findings provide new clues for a better understanding of the pathophysiological mechanisms that regulate gastric inflammation and the development of both dysplastic and neoplastic lesions of the stomach.
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11
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Tian H, Zhao J, Brochmann EJ, Wang JC, Murray SS. Bone morphogenetic protein-2 and tumor growth: Diverse effects and possibilities for therapy. Cytokine Growth Factor Rev 2017; 34:73-91. [PMID: 28109670 DOI: 10.1016/j.cytogfr.2017.01.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/14/2016] [Accepted: 01/09/2017] [Indexed: 11/19/2022]
Abstract
Concern regarding safety with respect to the clinical use of human bone morphogenetic protein-2 (BMP-2) has become an increasingly controversial topic. The role of BMP-2 in carcinogenesis is of particular concern. Although there have been many studies of this topic, the results have been contradictory and confusing. We conducted a systematic review of articles that are relevant to the relationship or effect of BMP-2 on all types of tumors and a total of 97 articles were included. Studies reported in these articles were classified into three major types: "expression studies", "in vitro studies", and "in vivo studies". An obvious pattern was that those works that hypothesize an inhibitory effect for BMP-2 most often examined only the proliferative properties of the tumor cells. This subset of studies also contained an extraordinary number of contradictory findings which made drawing a reliable general conclusion impossible. In general, we support a pro-tumorigenesis role for BMP-2 based on the data from these in vitro cell studies and in vivo animal studies, however, more clinical studies should be carried out to help make a firm conclusion.
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Affiliation(s)
- Haijun Tian
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Elsa J Brochmann
- Research Service, VA Greater Los Angeles Healthcare System, North Hills, CA, United States; Geriatric Research, Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA, United States; Department of Medicine, University of California, Los Angeles, CA, United States
| | - Jeffrey C Wang
- Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA, United States
| | - Samuel S Murray
- Research Service, VA Greater Los Angeles Healthcare System, North Hills, CA, United States; Geriatric Research, Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA, United States; Department of Medicine, University of California, Los Angeles, CA, United States
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12
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Taghizadeh M, Noruzinia M. Lovastatin Reduces Stemness via Epigenetic Reprograming of BMP2 and GATA2 in Human Endometrium and Endometriosis. CELL JOURNAL 2017; 19:50-64. [PMID: 28367417 PMCID: PMC5241518 DOI: 10.22074/cellj.2016.3894] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 06/22/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The stem cell theory in the endometriosis provides an advanced avenue of targeting these cells as a novel therapy to eliminate endometriosis. In this regard, studies showed that lovastatin alters the cells from a stem-like state to more differentiated condition and reduces stemness. The aim of this study was to investigate whether lovastatin treatment could influence expression and methylation patterns of genes regulating differentiation of endometrial mesenchymal stem cells (eMSCs) such as BMP2, GATA2 and RUNX2 as well as eMSCs markers. MATERIALS AND METHODS In this experimental investigation, MSCs were isolated from endometrial and endometriotic tissues and treated with lovastatin and decitabin. To investigate the osteogenic and adipogenic differentiation of eMSCs treated with the different concentration of lovastatin and decitabin, BMP2, RUNX2 and GATA2 expressions were measured by real-time polymerase chain reaction (PCR). To determine involvement of DNA methylation in BMP2 and GATA2 gene regulations of eMSCs, we used quantitative Methylation Specific PCR (qMSP) for evaluation of the BMP2 promoter status and differentially methylated region of GATA2 exon 4. RESULTS In the present study, treatment with lovastatin increased expression of BMP2 and RUNX2 and induced BMP2 promoter demethylation. We also demonstrated that lovastatin treatment down-regulated GATA2 expression via inducing methylation. In addition, the results indicated that CD146 cell marker was decreased to 53% in response to lovastatin treatment compared to untreated group. CONCLUSION These findings indicated that lovastatin treatment could increase the differentiation of eMSCs toward osteogenic and adiogenic lineages, while it decreased expression of eMSCs markers and subsequently reduced the stemness.
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Affiliation(s)
| | - Mehrdad Noruzinia
- P.O.Box: 11115-331Department of Medical GeneticsFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
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Abstract
STUDY DESIGN Literature review. OBJECTIVE To evaluate the association between recombinant human bone morphogenetic protein-2 (rhBMP-2) and malignancy. SUMMARY OF BACKGROUND DATA The use of rhBMP-2 in spine surgery has been the topic of much debate as studies assessing the association between rhBMP-2 and malignancy have come to conflicting conclusions. METHODS A systematic review of the literature was performed using the PubMed-National Library of Medicine/National Institute of Health databases. Only non-clinical studies directly addressing BMP-2 and cancer were included. Articles were categorized by study type (animal, in vitro cell line/human/animal), primary malignancy, cancer attributes, and whether BMP-2 was pro-malignancy or not. RESULTS A total of 4,131 articles were reviewed. Of those, 515 articles made reference to both BMP-2 and cancer, 99 of which were found to directly examine the role of BMP-2 in cancer. Seventy-five studies were in vitro and 24 were animal studies. Forty-three studies concluded that BMP-2 enhanced cancer function, whereas 18 studies found that BMP-2 suppressed malignancy. Thirty-six studies did not examine whether BMP-2 enhanced or suppressed cancer function. Fifteen studies demonstrated BMP-2 dose dependence (9 enhancement, 6 suppression) and one study demonstrated no dose dependence. Nine studies demonstrated BMP-2 time dependence (6 enhancement, 3 suppression). However, no study demonstrated that BMP-2 caused cancer de novo. CONCLUSION Currently, conflicting data exist with regard to the effect of exogenous BMP-2 on cancer. The majority of studies addressed the role of BMP-2 in prostate (17%), breast (17%), and lung (15%) cancers. Most were in vitro studies (75%) and examined cancer invasiveness and metastatic potential (37%). Of 99 studies, there was no demonstration of BMP-2 causing cancer de novo. However, 43% of studies suggested that BMP-2 enhances tumor function, motivating more definitive research on the topic that also includes clinically meaningful dose- and time-dependence. LEVEL OF EVIDENCE 2.
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14
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Mechanisms of action of bone morphogenetic proteins in cancer. Cytokine Growth Factor Rev 2015; 27:81-92. [PMID: 26678814 DOI: 10.1016/j.cytogfr.2015.11.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 11/13/2015] [Indexed: 01/28/2023]
Abstract
The bone morphogenetic proteins (BMPs) play fundamental roles in embryonic development and control differentiation of a diverse set of cell types. It is therefore of no surprise that the BMPs also contribute to the process of tumourigenesis and regulate cancer progression through various stages. We summarise here key roles of BMP ligands, receptors, their signalling mediators, mainly focusing on proteins of the Smad family, and extracellular antagonists, that contribute to the onset of tumourigenesis and to cancer progression in diverse tissues. Overall, the BMP pathways seem to act as tumour suppressors that maintain physiological tissue homeostasis and which are perturbed in cancer either via genetic mutation or via epigenetic misregulation of key gene components. BMPs also control the self-renewal and fate choices made by stem cells in several tissues. By promoting cell differentiation, including inhibition of the process of epithelial-mesenchymal transition, BMPs contribute to the malignant progression of cancer at advanced stages. It is therefore reasonable that pharmaceutical industries continuously develop biological agents and chemical modulators of BMP signalling with the aim to improve therapeutic regimes against several types of cancer.
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15
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Todisco A, Mao M, Keeley TM, Ye W, Samuelson LC, Eaton KA. Regulation of gastric epithelial cell homeostasis by gastrin and bone morphogenetic protein signaling. Physiol Rep 2015; 3:3/8/e12501. [PMID: 26290525 PMCID: PMC4562585 DOI: 10.14814/phy2.12501] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We reported that transgenic expression of the bone morphogenetic protein (BMP) signaling inhibitor noggin in the mouse stomach, leads to parietal-cell (PC) loss, expansion of transitional cells expressing markers of both mucus neck and zymogenic lineages, and to activation of proliferative mechanisms. Because these cellular changes were associated with increased levels of the hormone gastrin, we investigated if gastrin mediates the expression of the phenotypic changes of the noggin transgenic mice (NogTG mice). Three-month-old NogTG mice were crossed to gastrin-deficient (GasKO mice) to generate NogTG;GasKO mice. Morphology of the corpus of wild type, NogTG, GasKO, and NogTG;GasKO mice was analyzed by H&E staining. Distribution of PCs and zymogenic cells (ZCs) was analyzed by immunostaining for the H+/K+-ATPase and intrinsic factor (IF). Expression of the H+/K+-ATPase and IF genes and proteins were measured by QRT-PCR and western blots. Cell proliferation was assessed by immunostaining for proliferating cell nuclear antigen. The corpus of the NogTG;GasKO mice displayed a marked reduction in the number of PCs and ZCs in comparison to NogTG mice. Further, cellular proliferation was significantly lower in NogTG;GasKO mice, than in the NogTG mice. Thus, gastrin mediates the increase in gastric epithelial cell proliferation induced by inhibition of BMP signaling in vivo. Moreover, gastrin and BMP signaling exert cooperative effects on the maturation and differentiation of both the zymogenic and PC lineages. These findings contribute to a better understanding of the factors involved in the control of gastric epithelial cell homeostasis.
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Affiliation(s)
- Andrea Todisco
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Maria Mao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Theresa M Keeley
- Department of Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Wei Ye
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Linda C Samuelson
- Department of Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Kathryn A Eaton
- Laboratory Animal Medicine Unit, University of Michigan Medical Center, Ann Arbor, Michigan
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16
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Li Y, Melnikov AA, Levenson V, Guerra E, Simeone P, Alberti S, Deng Y. A seven-gene CpG-island methylation panel predicts breast cancer progression. BMC Cancer 2015; 15:417. [PMID: 25986046 PMCID: PMC4438505 DOI: 10.1186/s12885-015-1412-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 05/01/2015] [Indexed: 12/31/2022] Open
Abstract
Background DNA methylation regulates gene expression, through the inhibition/activation of gene transcription of methylated/unmethylated genes. Hence, DNA methylation profiling can capture pivotal features of gene expression in cancer tissues from patients at the time of diagnosis. In this work, we analyzed a breast cancer case series, to identify DNA methylation determinants of metastatic versus non-metastatic tumors. Methods CpG-island methylation was evaluated on a 56-gene cancer-specific biomarker microarray in metastatic versus non-metastatic breast cancers in a multi-institutional case series of 123 breast cancer patients. Global statistical modeling and unsupervised hierarchical clustering were applied to identify a multi-gene binary classifier with high sensitivity and specificity. Network analysis was utilized to quantify the connectivity of the identified genes. Results Seven genes (BRCA1, DAPK1, MSH2, CDKN2A, PGR, PRKCDBP, RANKL) were found informative for prognosis of metastatic diffusion and were used to calculate classifier accuracy versus the entire data-set. Individual-gene performances showed sensitivities of 63–79 %, 53–84 % specificities, positive predictive values of 59–83 % and negative predictive values of 63–80 %. When modelled together, these seven genes reached a sensitivity of 93 %, 100 % specificity, a positive predictive value of 100 % and a negative predictive value of 93 %, with high statistical power. Unsupervised hierarchical clustering independently confirmed these findings, in close agreement with the accuracy measurements. Network analyses indicated tight interrelationship between the identified genes, suggesting this to be a functionally-coordinated module, linked to breast cancer progression. Conclusions Our findings identify CpG-island methylation profiles with deep impact on clinical outcome, paving the way for use as novel prognostic assays in clinical settings. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1412-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yan Li
- Rush University Medical Center, 653 W Congress Pkwy, Chicago, IL, 60612, USA.
| | | | - Victor Levenson
- US Biomarkers, Inc, 29 Buckingham Ln., Buffalo Grove, IL, 60089, USA. .,Currently at Center for Translational Research, Catholic Health Initiatives, Englewood, USA.
| | - Emanuela Guerra
- Unit of Cancer Pathology, CeSI, 'G. d'Annunzio' University Foundation, Via L. Polacchi 11, 66100, Chieti, Italy.
| | - Pasquale Simeone
- Unit of Cancer Pathology, CeSI, 'G. d'Annunzio' University Foundation, Via L. Polacchi 11, 66100, Chieti, Italy.
| | - Saverio Alberti
- Unit of Cancer Pathology, CeSI, 'G. d'Annunzio' University Foundation, Via L. Polacchi 11, 66100, Chieti, Italy. .,Department of Neuroscience, Imaging and Clinical Sciences, Unit of Physiology and Physiopathology, 'G. d'Annunzio' University, Via dei Vestini, 66100, Chieti, Italy.
| | - Youping Deng
- Rush University Medical Center, 653 W Congress Pkwy, Chicago, IL, 60612, USA.
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17
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Videla Richardson GA, Garcia CP, Roisman A, Slavutsky I, Fernandez Espinosa DD, Romorini L, Miriuka SG, Arakaki N, Martinetto H, Scassa ME, Sevlever GE. Specific Preferences in Lineage Choice and Phenotypic Plasticity of Glioma Stem Cells Under BMP4 and Noggin Influence. Brain Pathol 2015; 26:43-61. [PMID: 25808628 DOI: 10.1111/bpa.12263] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 03/12/2015] [Indexed: 12/23/2022] Open
Abstract
Although BMP4-induced differentiation of glioma stem cells (GSCs) is well recognized, details of the cellular responses triggered by this morphogen are still poorly defined. In this study, we established several GSC-enriched cell lines (GSC-ECLs) from high-grade gliomas. The expansion of these cells as adherent monolayers, and not as floating neurospheres, enabled a thorough study of the phenotypic changes that occurred during their differentiation. Herein, we evaluated GSC-ECLs' behavior toward differentiating conditions by depriving them of growth factors and/or by adding BMP4 at different concentrations. After analyzing cellular morphology, proliferation and lineage marker expression, we determined that GSC-ECLs have distinct preferences in lineage choice, where some of them showed an astrocyte fate commitment and others a neuronal one. We found that this election seems to be dictated by the expression pattern of BMP signaling components present in each GSC-ECL. Additionally, treatment of GSC-ECLs with the BMP antagonist, Noggin, also led to evident phenotypic changes. Interestingly, under certain conditions, some GSC-ECLs adopted an unexpected smooth muscle-like phenotype. As a whole, our findings illustrate the wide differentiation potential of GSCs, highlighting their molecular complexity and paving a way to facilitate personalized differentiating therapies.
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Affiliation(s)
- Guillermo Agustín Videla Richardson
- Laboratorio de Investigación aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Escobar, Provincia de Buenos Aires, Argentina
| | - Carolina Paola Garcia
- Laboratorio de Investigación aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Escobar, Provincia de Buenos Aires, Argentina
| | - Alejandro Roisman
- Laboratorio de Neuropatología, Departamento de Neuropatología y Biología Molecular, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Irma Slavutsky
- Laboratorio de Neuropatología, Departamento de Neuropatología y Biología Molecular, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Damián Darío Fernandez Espinosa
- Laboratorio de Investigación aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Escobar, Provincia de Buenos Aires, Argentina
| | - Leonardo Romorini
- Laboratorio de Investigación aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Escobar, Provincia de Buenos Aires, Argentina
| | - Santiago Gabriel Miriuka
- Laboratorio de Investigación aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Escobar, Provincia de Buenos Aires, Argentina
| | - Naomi Arakaki
- Laboratorio de Biología Molecular, Departamento de Neuropatología y Biología Molecular, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Horacio Martinetto
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - María Elida Scassa
- Laboratorio de Investigación aplicada a Neurociencias (LIAN), Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Escobar, Provincia de Buenos Aires, Argentina
| | - Gustavo Emilio Sevlever
- Laboratorio de Biología Molecular, Departamento de Neuropatología y Biología Molecular, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
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18
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Mitsui Y, Hirata H, Arichi N, Hiraki M, Yasumoto H, Chang I, Fukuhara S, Yamamura S, Shahryari V, Deng G, Saini S, Majid S, Dahiya R, Tanaka Y, Shiina H. Inactivation of bone morphogenetic protein 2 may predict clinical outcome and poor overall survival for renal cell carcinoma through epigenetic pathways. Oncotarget 2015; 6:9577-91. [PMID: 25797254 PMCID: PMC4496240 DOI: 10.18632/oncotarget.3445] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 02/10/2015] [Indexed: 02/05/2023] Open
Abstract
We investigated whether impaired regulation of bone morphogenetic protein-2 (BMP-2) via epigenetic pathways is associated with renal cell carcinoma (RCC) pathogenesis. Expression and CpG methylation of the BMP-2 gene were analyzed using RCC cell lines, and 96 matched RCC and normal renal tissues. We also performed functional analysis using BMP-2 restored RCC cells. A significant association of BMP-2 mRNA expression was also found with advanced tumor stage and lymph node involvement, while lower BMP-2 mRNA expression was significantly associated with poor overall survival after radical nephrectomy. In RCC cells, BMP-2 restoration significantly inhibited cell proliferation, migration, invasion, and colony formation. In addition, BMP-2 overexpression induced p21(WAF1/CIP1) and p27(KIP1) expression, and cellular apoptosis in RCC cells. BMP-2 mRNA expression was significantly enhanced in RCC cells by 5-aza-2'-deoxycitidine treatment. The prevalence of BMP-2 promoter methylation was significantly greater and BMP-2 mRNA expression was significantly lower in RCC samples as compared to normal kidney samples. Furthermore, a significant correlation was found between BMP-2 promoter methylation and mRNA transcription in tumors. Aberrant BMP-2 methylation and the resultant loss of BMP-2 expression may be a useful molecular marker for designing improved diagnostic and therapeutic strategies for RCC.
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MESH Headings
- Aged
- Antimetabolites, Antineoplastic/pharmacology
- Apoptosis
- Azacitidine/analogs & derivatives
- Azacitidine/pharmacology
- Bone Morphogenetic Protein 2/biosynthesis
- Bone Morphogenetic Protein 2/genetics
- Carcinoma, Renal Cell/genetics
- Carcinoma, Renal Cell/metabolism
- Carcinoma, Renal Cell/mortality
- Carcinoma, Renal Cell/surgery
- Cell Line, Tumor
- DNA Methylation/drug effects
- Decitabine
- Down-Regulation
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Genes, cdc
- Humans
- Kidney Neoplasms/genetics
- Kidney Neoplasms/metabolism
- Kidney Neoplasms/mortality
- Kidney Neoplasms/surgery
- Kidney Tubules/metabolism
- Male
- Middle Aged
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Nephrectomy
- Promoter Regions, Genetic/drug effects
- Promoter Regions, Genetic/genetics
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- RNA, Neoplasm/biosynthesis
- RNA, Neoplasm/genetics
- Recombinant Fusion Proteins/biosynthesis
- Recombinant Fusion Proteins/genetics
- Transfection
- Treatment Outcome
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Affiliation(s)
- Yozo Mitsui
- Department of Urology, Shimane University Faculty of Medicine, Enya-cho, Izumo, Japan
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Hiroshi Hirata
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Naoko Arichi
- Department of Urology, Shimane University Faculty of Medicine, Enya-cho, Izumo, Japan
| | - Miho Hiraki
- Department of Urology, Shimane University Faculty of Medicine, Enya-cho, Izumo, Japan
| | - Hiroaki Yasumoto
- Department of Urology, Shimane University Faculty of Medicine, Enya-cho, Izumo, Japan
| | - Inik Chang
- Department of Oral Biology, Yonsei University College of Densitry, Seoul, South Korea
| | - Shinichiro Fukuhara
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Soichiro Yamamura
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Varahram Shahryari
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Guoren Deng
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Sharanjot Saini
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Shahana Majid
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Rajvir Dahiya
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Yuichiro Tanaka
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California San Francisco, San Francisco, California, USA
| | - Hiroaki Shiina
- Department of Urology, Shimane University Faculty of Medicine, Enya-cho, Izumo, Japan
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19
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Takabayashi H, Shinohara M, Mao M, Phaosawasdi P, El-Zaatari M, Zhang M, Ji T, Eaton KA, Dang D, Kao J, Todisco A. Anti-inflammatory activity of bone morphogenetic protein signaling pathways in stomachs of mice. Gastroenterology 2014; 147:396-406.e7. [PMID: 24751878 PMCID: PMC4197994 DOI: 10.1053/j.gastro.2014.04.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 04/03/2014] [Accepted: 04/11/2014] [Indexed: 01/14/2023]
Abstract
BACKGROUND & AIMS Bone morphogenetic protein (BMP)4 is a mesenchymal peptide that regulates cells of the gastric epithelium. We investigated whether BMP signaling pathways affect gastric inflammation after bacterial infection of mice. METHODS We studied transgenic mice that express either the BMP inhibitor noggin or the β- galactosidase gene under the control of a BMP-responsive element and BMP4(βgal/+) mice. Gastric inflammation was induced by infection of mice with either Helicobacter pylori or Helicobacter felis. Eight to 12 weeks after inoculation, gastric tissue samples were collected and immunohistochemical, quantitative, reverse-transcription polymerase chain reaction and immunoblot analyses were performed. We used enzyme-linked immunosorbent assays to measure cytokine levels in supernatants from cultures of mouse splenocytes and dendritic cells, as well as from human gastric epithelial cells (AGS cell line). We also measured the effects of BMP-2, BMP-4, BMP-7, and the BMP inhibitor LDN-193189 on the expression of interleukin (IL)8 messenger RNA by AGS cells and primary cultures of canine parietal and mucus cells. The effect of BMP-4 on NFkB activation in parietal and AGS cells was examined by immunoblot and luciferase assays. RESULTS Transgenic expression of noggin in mice increased H pylori- or H felis-induced inflammation and epithelial cell proliferation, accelerated the development of dysplasia, and increased expression of the signal transducer and activator of transcription 3 and activation-induced cytidine deaminase. BMP-4 was expressed in mesenchymal cells that expressed α-smooth muscle actin and activated BMP signaling pathways in the gastric epithelium. Neither BMP-4 expression nor BMP signaling were detected in immune cells of C57BL/6, BRE-β-galactosidase, or BMP-4(βgal/+) mice. Incubation of dendritic cells or splenocytes with BMP-4 did not affect lipopolysaccharide-stimulated production of cytokines. BMP-4, BMP-2, and BMP-7 inhibited basal and tumor necrosis factor α-stimulated expression of IL8 in canine gastric epithelial cells. LDN-193189 prevented BMP4-mediated inhibition of basal and tumor necrosis factor α-stimulated expression of IL8 in AGS cells. BMP-4 had no effect on TNFα-stimulated phosphorylation and degradation of IκBα, or on TNFα induction of a NFκβ reporter gene. CONCLUSIONS BMP signaling reduces inflammation and inhibits dysplastic changes in the gastric mucosa after infection of mice with H pylori or H felis.
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Affiliation(s)
- Hidehiko Takabayashi
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Masahiko Shinohara
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Maria Mao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Piangwarin Phaosawasdi
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Mohamad El-Zaatari
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Min Zhang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Tuo Ji
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Kathryn A Eaton
- Laboratory Animal Medicine Unit, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Duyen Dang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - John Kao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Andrea Todisco
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan.
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20
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Abstract
Genome‐wide SNP analyses have identified genomic variants associated with adult human height. However, these only explain a fraction of human height variation, suggesting that significant information might have been systematically missed by SNP sequencing analysis. A candidate for such non‐SNP‐linked information is DNA methylation. Regulation by DNA methylation requires the presence of CpG islands in the promoter region of candidate genes. Seventy two of 87 (82.8%), height‐associated genes were indeed found to contain CpG islands upstream of the transcription start site (USC CpG island searcher; validation: UCSC Genome Browser), which were shown to correlate with gene regulation. Consistent with this, DNA hypermethylation modules were detected in 42 height‐associated genes, versus 1.5% of control genes (P = 8.0199e−17), as were dynamic methylation changes and gene imprinting. Epigenetic heredity thus appears to be a determinant of adult human height. Major findings in mouse models and in human genetic diseases support this model. Modulation of DNA methylation are candidate to mediate environmental influence on epigenetic traits. This may help to explain progressive height changes over multiple generations, through trans‐generational heredity of progressive DNA methylation patterns. Epigenetic heredity appears to be a determinant of adult human height. Major findings in mouse models and in human genetic diseases support this model. Modulation of DNA methylation is candidate to mediate environmental influence on epigenetic traits.
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Affiliation(s)
- Pasquale Simeone
- Unit of Cancer Pathology, Department of Neuroscience and Imaging and CeSI, University "G. d'Annunzio" Foundation, Chieti Scalo, Italy
| | - Saverio Alberti
- Unit of Cancer Pathology, Department of Neuroscience and Imaging and CeSI, University "G. d'Annunzio" Foundation, Chieti Scalo, Italy
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21
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Zhang YW, Zheng Y, Wang JZ, LU XX, Wang Z, Chen LB, Guan XX, Tong JD. Integrated analysis of DNA methylation and mRNA expression profiling reveals candidate genes associated with cisplatin resistance in non-small cell lung cancer. Epigenetics 2014; 9:896-909. [PMID: 24699858 PMCID: PMC4065187 DOI: 10.4161/epi.28601] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 03/15/2014] [Accepted: 03/19/2014] [Indexed: 01/07/2023] Open
Abstract
DNA methylation plays a critical role during the development of acquired chemoresistance. The aim of this study was to identify candidate DNA methylation drivers of cisplatin (DDP) resistance in non-small cell lung cancer (NSCLC). The A549/DDP cell line was established by continuous exposure of A549 cells to increasing concentrations of DDP. Gene expression and methylation profiling were determined by high-throughput microarrays. Relationship of methylation status and DDP response was validated in primary tumor cell culture and the Cancer Genome Atlas (TCGA) samples. Cell proliferation, apoptosis, cell cycle, and response to DDP were determined in vitro and in vivo. A total of 372 genes showed hypermethylation and downregulation in A549/DDP cells, and these genes were involved in most fundamental biological processes. Ten candidate genes (S100P, GDA, WISP2, LOXL1, TIMP4, ICAM1, CLMP, HSP8, GAS1, BMP2) were selected, and exhibited varying degrees of association with DDP resistance. Low dose combination of 5-aza-2'-deoxycytidine (5-Aza-dC) and trichostatin A (TSA) reversed drug resistance of A549/DDP cells in vitro and in vivo, along with demethylation and restoration of expression of candidate genes (GAS1, TIMP4, ICAM1 and WISP2). Forced expression of GAS1 in A549/DDP cells by gene transfection contributed to increased sensitivity to DDP, proliferation inhibition, cell cycle arrest, apoptosis enhancement, and in vivo growth retardation. Together, our study demonstrated that a panel of candidate genes downregulated by DNA methylation induced DDP resistance in NSCLC, and showed that epigenetic therapy resensitized cells to DDP.
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Affiliation(s)
- You-Wei Zhang
- Department of Oncology; Jinling Hospital; Medical School of Nanjing University; Nanjing, PR China
- Department of Oncology; Yangzhou No. 1 Hospital; The Second Clinical School of Yangzhou University; Yangzhou, PR China
- Department of Oncology; Affiliated Xuzhou Central Hospital; Xuzhou Medical College; Xuzhou, PR China
| | - Yun Zheng
- Department of Oncology; Jinling Hospital; Medical School of Nanjing University; Nanjing, PR China
| | - Jing-Zi Wang
- Department of Oncology; Jinling Hospital; Medical School of Nanjing University; Nanjing, PR China
| | - Xiao-Xia LU
- Department of Oncology; Yangzhou No. 1 Hospital; The Second Clinical School of Yangzhou University; Yangzhou, PR China
| | - Zhu Wang
- Department of Oncology; Yangzhou No. 1 Hospital; The Second Clinical School of Yangzhou University; Yangzhou, PR China
| | - Long-Bang Chen
- Department of Oncology; Jinling Hospital; Medical School of Nanjing University; Nanjing, PR China
| | - Xiao-Xiang Guan
- Department of Oncology; Jinling Hospital; Medical School of Nanjing University; Nanjing, PR China
| | - Jian-Dong Tong
- Department of Oncology; Yangzhou No. 1 Hospital; The Second Clinical School of Yangzhou University; Yangzhou, PR China
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22
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Du M, Su XM, Zhang T, Xing YJ. Aberrant promoter DNA methylation inhibits bone morphogenetic protein 2 expression and contributes to drug resistance in breast cancer. Mol Med Rep 2014; 10:1051-5. [PMID: 24866720 DOI: 10.3892/mmr.2014.2276] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 03/17/2014] [Indexed: 11/06/2022] Open
Abstract
Bone morphogenetic protein 2 (BMP2) is a growth factor that is involved in the development and progression of various types of cancer. However, the epigenetic regulation of the expression of BMP2 and the association between BMP2 expression and drug resistance in breast cancer remains to be elucidated. The present study reported that the expression of BMP2 was significantly decreased in primary breast cancer samples and the MCF‑7/ADR breast cancer mulitdrug resistance cell line, which was closely associated with its promoter DNA methylation status. The expression of BMP2 in MCF‑7/ADR cells markedly increased when treated with 5‑Aza‑2'‑deoxycytidine. Knockdown of BMP2 by specific small interfering RNA enhanced the chemoresistance of the MCF‑7 breast cancer cell line. These findings indicated that epigenetic silencing of BMP2 in breast cancer may be involved in breast cancer progression and drug resistance, and provided a novel prognostic marker and therapeutic strategy for breast cancer.
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Affiliation(s)
- Min Du
- Department of Oncology, PLA General Hospital of Chengdu Military Region, Chengdu, Sichuan 610083, P.R. China
| | - Xiao-Mei Su
- Department of Oncology, PLA General Hospital of Chengdu Military Region, Chengdu, Sichuan 610083, P.R. China
| | - Tao Zhang
- Department of Oncology, PLA General Hospital of Chengdu Military Region, Chengdu, Sichuan 610083, P.R. China
| | - Yong-Jun Xing
- Affiliated Stomatological Hospital, PLA General Hospital of Chengdu Military Region, Chengdu, Sichuan 610083, P.R. China
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Karagiannis GS, Treacy A, Messenger D, Grin A, Kirsch R, Riddell RH, Diamandis EP. Expression patterns of bone morphogenetic protein antagonists in colorectal cancer desmoplastic invasion fronts. Mol Oncol 2014; 8:1240-52. [PMID: 24812030 DOI: 10.1016/j.molonc.2014.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 02/24/2014] [Accepted: 04/09/2014] [Indexed: 01/31/2023] Open
Abstract
Bone morphogenetic proteins (BMPs) are a group of growth factors with dual functions in cancer development and progression. Recently, certain tumor-promoting roles have been identified for selected antagonists/inhibitors (BMPIs) of this developmental pathway. A recent focus on the implication of BMP in colorectal cancer progression has emerged, mainly due to the presence of inactivating mutations in several members of the canonical signaling cascade. However, the detailed expression profiles of BMPIs remain largely unknown. Based on our previous work, whereby three specific BMPIs, gremlin-1 (GREM1), high-temperature requirement A3 (HTRA3) and follistatin (FST) were collectively overexpressed in desmoplastic cocultures of colorectal cancer (CRC), here, we undertook an immunohistochemical approach to describe the patterns of their expression in CRC patients. Two major characteristics described the BMPI expression signature: First, the synchronous and coordinated stromal and epithelial overexpression of individual BMPIs in desmoplastic lesions, which demonstrated that all three of them contribute to increasing levels of BMP antagonism in such areas. Second, the presence of microenvironmental polarity in the BMPI pattern of expression, which was indicated through the preferential expression of HTRA3 in the stromal, and the parallel FST/GREM1 expression in the epithelial component of the investigated sections. In addition, expression of HTRA3 in the epithelial compartment of the tumors demonstrated a significant predictive power to discriminate between tumor-budding-bearing and tumor-budding-free desmoplastic microenvironments. Together, these findings contribute to the understanding of signaling dynamics of BMP antagonism in the colorectal cancer desmoplastic invasion front.
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Affiliation(s)
- George S Karagiannis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Ann Treacy
- MC Pathology, The Laboratory, Charlemont Clinic, Charlemont Mall, Dublin, Ireland
| | - David Messenger
- Zane Cohen Clinical Research Centre, Mount Sinai Hospital, Toronto, Canada; Division of General Surgery, Mount Sinai Hospital, Toronto, Canada
| | - Andrea Grin
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Laboratory Medicine, St Michael's Hospital, Toronto, Canada
| | - Richard Kirsch
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Robert H Riddell
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Eleftherios P Diamandis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Clinical Biochemistry, University Health Network, Toronto, Ontario, Canada.
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Wolf S, Hagl B, Kappler R. Identification of BMP2 as an epigenetically silenced growth inhibitor in rhabdomyosarcoma. Int J Oncol 2014; 44:1727-35. [PMID: 24585058 DOI: 10.3892/ijo.2014.2312] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 02/06/2014] [Indexed: 11/06/2022] Open
Abstract
Rhabdomyosarcoma (RMS) is the most common soft-tissue sarcoma of infancy and although therapy has improved over the years, mortality is still fairly high. The establishment of new treatments has been hampered by the limited knowledge of the molecular mechanisms driving development of RMS. One characteristic of cancer cells is aberrant DNA methylation, which could lead to silencing of tumor suppressor genes. However, only a few epigenetically silenced genes have been described in RMS so far. We performed an expression profiling analysis of three RMS cell lines that were treated with the demethylating agent 5'-aza-2'-deoxycytidine (5-Aza‑dC) facilitating re-expression of epigenetically silenced genes. This treatment induced the gene BMP2 (bone morphogenetic protein 2) throughout all cell lines. Detailed methylation analysis of CpG sites in the BMP2 promoter region by bisulfite sequencing and methylation-specific PCR revealed that a high degree of DNA methylation is causatively associated with the suppression of BMP2 in RMS cells. Consequently, treatment of the RMS cell lines with 5-Aza-dC resulted in DNA demethylation of the BMP2 promoter, most prominently in alveolar RMS. Supplementation of recombinant human BMP2 (rhBMP2) led to a reduced viability of RMS cells. Altogether, these findings suggest that suppression of BMP2 by epigenetic silencing may play a critical role in the genesis of RMS, thereby providing a rationale for the development of a new treatment strategy for RMS.
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Affiliation(s)
- Sebastian Wolf
- Department of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, D-80337 Munich, Germany
| | - Beate Hagl
- Department of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, D-80337 Munich, Germany
| | - Roland Kappler
- Department of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, D-80337 Munich, Germany
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Hsu YT, Gu F, Huang YW, Liu J, Ruan J, Huang RL, Wang CM, Chen CL, Jadhav RR, Lai HC, Mutch DG, Goodfellow PJ, Thompson IM, Kirma NB, Huang THM. Promoter hypomethylation of EpCAM-regulated bone morphogenetic protein gene family in recurrent endometrial cancer. Clin Cancer Res 2013; 19:6272-85. [PMID: 24077349 DOI: 10.1158/1078-0432.ccr-13-1734] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE Epigenetic regulation by promoter methylation plays a key role in tumorigenesis. Our goal was to investigate whether altered DNA methylation signatures associated with oncogenic signaling delineate biomarkers predictive of endometrial cancer recurrence. EXPERIMENTAL DESIGN Methyl-CpG-capture sequencing was used for global screening of aberrant DNA methylation in our endometrial cancer cohort, followed by validation in an independent The Cancer Genome Atlas (TCGA) cohort. Bioinformatics as well as functional analyses in vitro, using RNA interference (RNAi) knockdown, were performed to examine regulatory mechanisms of candidate gene expression and contribution to aggressive phenotype, such as epithelial-mesenchymal transition (EMT). RESULTS We identified 2,302 hypermethylated loci in endometrial tumors compared with control samples. Bone morphogenetic protein (BMP) family genes, including BMP1, 2, 3, 4, and 7, were among the frequently hypermethylated loci. Interestingly, BMP2, 3, 4, and 7 were less methylated in primary tumors with subsequent recurrence and in patients with shorter disease-free interval compared with nonrecurrent tumors, which was validated and associated with poor survival in the TCGA cohort (BMP4, P = 0.009; BMP7, P = 0.007). Stimulation of endometrial cancer cells with epidermal growth factor (EGF) induced EMT and transcriptional activation of these genes, which was mediated by the epithelial cell adhesion molecule (EpCAM). EGF signaling was implicated in maintaining the promoters of candidate BMP genes in an active chromatin configuration and thus subject to transcriptional activation. CONCLUSIONS Hypomethylation signatures of candidate BMP genes associated with EpCAM-mediated expression present putative biomarkers predictive of poor survival in endometrial cancer.
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Affiliation(s)
- Ya-Ting Hsu
- Authors' Affiliations: Department of Molecular Medicine, Institute of Biotechnology; Department of Urology; Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio; Department of Computer Science, University of Texas at San Antonio, San Antonio, Texas; Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, Wisconsin; Department of Obstetrics and Gynecology, Tri-Service General Hospital; Laboratory of Epigenetics, Cancer Stem Cells; Department and Graduate Institute of Biochemistry, National Defense Medical Center, Taiwan, Republic of China; Department of Obstetrics and Gynecology, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri; Department of Obstetrics and Gynecology, Ohio State University, Columbus, Ohio
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Abstract
Gastric cancer (GC) remains one of the most common cancers worldwide. Its prevalence is still on the rise in the developing countries due to the ageing population. The cancer stem cell (CSC) theory provides a new insight into the interpretation of tumor initiation, aggressive growth, recurrence, and metastasis of cancer, as well as the development of new strategies for cancer treatment. This review will focus on the progress of biomarkers and signaling pathways of CSCs, the complex crosstalk networks between the microenvironment and CSCs, and the development of therapeutic approaches against CSCs, predominantly focusing on GC.
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27
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Lad SP, Bagley JH, Karikari IO, Babu R, Ugiliweneza B, Kong M, Isaacs RE, Bagley CA, Gottfried ON, Patil CG, Boakye M. Cancer After Spinal Fusion. Neurosurgery 2013; 73:440-9. [DOI: 10.1227/neu.0000000000000018] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Abstract
BACKGROUND:
Bone morphogenetic protein (BMP) is used in tens of thousands of spinal fusions each year. A trial evaluating a high-dose BMP formulation demonstrated that its use may be associated with an increased risk of cancer.
OBJECTIVE:
To evaluate whether BMP, as commonly used today, is associated with an increased risk of cancer or benign tumors.
METHODS:
We performed a retrospective study using the Thomson Reuter MarketScan database. We retained all patients who had no previous diagnosis of cancer or benign tumor and had at least 2 years of uninterrupted enrollment in the database before and after their operations. A propensity score--matched cohort was created to ensure greater covariate balance between treatment groups.
RESULTS:
Within the propensity score--matched cohort (n = 4698), BMP-exposed patients had a nonsignificant increase in the rate of cancer diagnosis (9.37% vs 7.92%; P = .08). After adjustment for covariates, BMP exposure was associated with a 31% increased risk of benign tumor diagnosis (odds ratio, 1.31; 95% confidence interval, 1.02-1.68; P < .05). When the benign tumor diagnoses were stratified by organ type, BMP patients had significantly more diagnoses of benign nervous system tumors (0.81% vs 0.34%; P = .03), and within this group, benign tumors of the spinal meninges were much more common in the BMP-treated group (0.13% vs 0.02%; P = .002).
CONCLUSION:
The results of this large, independent, propensity-matched study suggest that the use of BMP in lumbar fusions is associated with a significantly higher rate of benign neoplasms but not malignancies.
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Affiliation(s)
- Shivanand P. Lad
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Jacob H. Bagley
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Isaac O. Karikari
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Ranjith Babu
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | | | | | - Robert E. Isaacs
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Carlos A. Bagley
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Oren N. Gottfried
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Chirag G. Patil
- Center for Neurosurgical Outcomes Research, Maxine Dunitz Neurosurgical Institute, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Maxwell Boakye
- Department of Neurosurgery, University of Louisville, Louisville, Kentucky
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Karagiannis GS, Berk A, Dimitromanolakis A, Diamandis EP. Enrichment map profiling of the cancer invasion front suggests regulation of colorectal cancer progression by the bone morphogenetic protein antagonist, gremlin-1. Mol Oncol 2013; 7:826-39. [PMID: 23659962 DOI: 10.1016/j.molonc.2013.04.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 03/20/2013] [Accepted: 04/05/2013] [Indexed: 12/21/2022] Open
Abstract
The cancer invasion front (CIF), a spatially-recognized area due to the frequent presence of peritumoral desmoplastic reaction, represents a cancer site where many hallmarks of cancer metastasis occur. It is now strongly suggested that the desmoplastic microenvironment holds crucial information for determining tumor development and progression. Despite extensive research on tumor-host cell interactions at CIFs, the exact paracrine molecular network that is hardwired into the proteome of the stromal and cancer subpopulations remains partially understood. Here, we interrogated the signaling pathways and the molecular functional signatures across the proteome of a desmoplastic coculture model system of colorectal cancer progression. We discovered a group of bone morphogenetic protein (BMP) antagonists that coordinates major biological programs in CIFs, including cell proliferation, invasion, migration and differentiation processes. Using a mathematical model of cancer cell progression, coupled to in vitro cell migration assays, we demonstrated that the prominent BMP antagonist gremlin-1 (GREM1) may trigger motility of cancer cell cohorts. Our data collectively demonstrate that the desmoplastic CIFs deploy a microenvironmental signature, based on BMP antagonism, in order to regulate the motogenic fates of cancer cell cohorts invading the adjacent stroma.
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Affiliation(s)
- George S Karagiannis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
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29
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Mitchell CM, Sykes SD, Pan X, Pringle KG, Lumbers ER, Hirst JJ, Zakar T. Inflammatory and steroid receptor gene methylation in the human amnion and decidua. J Mol Endocrinol 2013; 50:267-77. [PMID: 23393306 DOI: 10.1530/jme-12-0211] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Correct timing of parturition requires inflammatory gene activation in the gestational tissues at term and repression during pregnancy. Promoter methylation at CpG dinucleotides represses gene activity; therefore, we examined the possibility that DNA methylation is involved in the regulation of labour-associated genes in human pregnancy. Amnion and decidua were collected at 11-17 weeks of gestation and at term following elective Caesarean delivery or spontaneous labour. Methylation of the inflammatory genes PTGS2, BMP2, NAMPT and CXCL2 was analysed using the Methyl-Profiler PCR System and bisulphite sequencing. Methylation of the glucocorticoid, progesterone and oestrogen receptor genes, involved in the hormonal regulation of gestational tissue function, and the expression of the DNA methyltransferases DNMT1, -3A and -3B were also determined. Variable proportions of inflammatory and steroid receptor gene copies, to a maximum of 50.9%, were densely methylated in both tissues consistent with repression. Densely methylated copy proportions were significantly different between genes showing no relationship with varying expression during pregnancy, between tissues and in individuals. Methylated copy proportions of all genes in amnion and most genes in decidua were highly correlated in individuals. DNMT1 and -3A were expressed in both tissues with significantly higher levels in the amnion at 11-17 weeks than at term. We conclude that the unmethylated portion of gene copies is responsible for the full range of regulated expression in the amnion and decidua during normal pregnancy. Dense methylation of individually variable gene copy proportions happens in the first trimester amnion influenced by sequence context and affected strongly by individual circumstances.
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Affiliation(s)
- Carolyn M Mitchell
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
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30
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Han ME, Oh SO. Gastric stem cells and gastric cancer stem cells. Anat Cell Biol 2013; 46:8-18. [PMID: 23560232 PMCID: PMC3615616 DOI: 10.5115/acb.2013.46.1.8] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 01/14/2013] [Accepted: 01/23/2013] [Indexed: 12/16/2022] Open
Abstract
The gastric epithelium is continuously regenerated by gastric stem cells, which give rise to various kinds of daughter cells, including parietal cells, chief cells, surface mucous cells, mucous neck cells, and enteroendocrine cells. The self-renewal and differentiation of gastric stem cells need delicate regulation to maintain the normal physiology of the stomach. Recently, it was hypothesized that cancer stem cells drive the cancer growth and metastasis. In contrast to conventional clonal evolution hypothesis, only cancer stem cells can initiate tumor formation, self-renew, and differentiate into various kinds of daughter cells. Because gastric cancer can originate from gastric stem cells and their self-renewal mechanism can be used by gastric cancer stem cells, we review here how critical signaling pathways, including hedgehog, Wnt, Notch, epidermal growth factor, and bone morphogenetic protein signaling, may regulate the self-renewal and differentiation of gastric stem cells and gastric cancer stem cells. In addition, the precancerous change of the gastric epithelium and the status of isolating gastric cancer stem cells from patients are reviewed.
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Affiliation(s)
- Myoung-Eun Han
- Department of Anatomy, Pusan National University School of Medicine, Yangsan, Korea. ; Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Yangsan, Korea
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31
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Hu XT, He C. Recent progress in the study of methylated tumor suppressor genes in gastric cancer. CHINESE JOURNAL OF CANCER 2013; 32:31-41. [PMID: 22059906 PMCID: PMC3845584 DOI: 10.5732/cjc.011.10175] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Revised: 07/27/2011] [Accepted: 08/17/2011] [Indexed: 12/14/2022]
Abstract
Gastric cancer is one of the most common malignancies and a leading cause of cancer mortality worldwide. The pathogenesis mechanisms of gastric cancer are still not fully clear. Inactivation of tumor suppressor genes and activation of oncogenes caused by genetic and epigenetic alterations are known to play significant roles in carcinogenesis. Accumulating evidence has shown that epigenetic silencing of the tumor suppressor genes, particularly caused by hypermethylation of CpG islands in promoters, is critical to carcinogenesis and metastasis. Here, we review the recent progress in the study of methylations of tumor suppressor genes involved in the pathogenesis of gastric cancer. We also briefly describe the mechanisms that induce tumor suppressor gene methylation and the status of translating these molecular mechanisms into clinical applications.
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Affiliation(s)
- Xiao-Tong Hu
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province,
| | - Chao He
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province,
- Department of Colorectal Surgery, Sir Run Run Shaw Hospital, Hangzhou, Zhejiang 310016, P. R. China.
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E. coli-produced BMP-2 as a chemopreventive strategy for colon cancer: a proof-of-concept study. Gastroenterol Res Pract 2012; 2012:895462. [PMID: 22315590 PMCID: PMC3270523 DOI: 10.1155/2012/895462] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 10/20/2011] [Indexed: 12/20/2022] Open
Abstract
Colon cancer is a serious health problem, and novel preventive and therapeutical avenues are urgently called for. Delivery of proteins with anticancer activity through genetically modified bacteria provides an interesting, potentially specific, economic and effective approach here. Interestingly, bone morphogenetic protein 2 (BMP-2) is an important and powerful tumour suppressor in the colon and is thus an attractive candidate protein for delivery through genetically modified bacteria. It has not been shown, however, that BMP production in the bacterial context is effective on colon cancer cells. Here we demonstrate that transforming E. coli with a cDNA encoding an ileal-derived mature human BMP-2 induces effective apoptosis in an in vitro model system for colorectal cancer, whereas the maternal organism was not effective in this respect. Furthermore, these effects were sensitive to cotreatment with the BMP inhibitor Noggin. We propose that prevention and treatment of colorectal cancer using transgenic bacteria is feasible.
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Bone morphogenetic protein-2 and -4 play tumor suppressive roles in human diffuse-type gastric carcinoma. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:2920-30. [PMID: 21996676 DOI: 10.1016/j.ajpath.2011.08.022] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 07/21/2011] [Accepted: 08/29/2011] [Indexed: 11/21/2022]
Abstract
A relationship exists between defects in bone morphogenetic protein (BMP) signaling and formation of hamartoma and adenoma in the gastric epithelium; however, the role of BMP signaling in the progression of diffuse-type gastric carcinoma remains unknown. We investigated whether BMP functions as a tumor suppressor in human diffuse-type gastric carcinoma using three different human diffuse-type gastric carcinoma cell lines (OCUM-12, HSC-39, and OCUM-2MLN). Overexpression of the dominant-negative form of BMP-2/4-specific type I receptor (ALK-3) in OCUM-12 and HSC-39 cells accelerated their growth in vivo. BMP-4 induced cell cycle arrest in these cells via p21 induction through the SMAD pathway. Moreover, overexpression of the constitutively active form of ALK-3 in HSC-39 and OCUM-2MLN cells suppressed the proliferation of these cells in vitro and in vivo. Our findings suggest that BMP-2 and BMP-4 function as potent tumor suppressors in diffuse-type gastric carcinoma.
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Epigenetic Alteration by DNA Promoter Hypermethylation of Genes Related to Transforming Growth Factor-β (TGF-β) Signaling in Cancer. Cancers (Basel) 2011; 3:982-93. [PMID: 24212650 PMCID: PMC3756400 DOI: 10.3390/cancers3010982] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 02/22/2011] [Accepted: 02/24/2011] [Indexed: 12/18/2022] Open
Abstract
Epigenetic alterations in cancer, especially DNA methylation and histone modification, exert a significant effect on the deregulated expression of cancer-related genes and lay an epigenetic pathway to carcinogenesis and tumor progression. Global hypomethylation and local hypermethylation of CpG islands in the promoter region, which result in silencing tumor suppressor genes, constitute general and major epigenetic modification, the hallmark of the neoplastic epigenome. Additionally, methylation-induced gene silencing commonly affects a number of genes and increases with cancer progression. Indeed, cancers with a high degree of methylation (CpG island methylator phenotype/CIMP) do exist and represent a distinct subset of certain cancers including colorectal, bladder and kidney. On the other hand, signals from the microenvironment, especially those from transforming growth factor-β (TGF-β), induce targeted de novo epigenetic alterations of cancer-related genes. While TGF-β signaling has been implicated in two opposite roles in cancer, namely tumor suppression and tumor promotion, its deregulation is also partly induced by epigenetic alteration itself. Although the epigenetic pathway to carcinogenesis and cancer progression has such reciprocal complexity, the important issue is to identify genes or signaling pathways that are commonly silenced in various cancers in order to find early diagnostic and therapeutic targets. In this review, we focus on the epigenetic alteration by DNA methylation and its role in molecular modulations of the TGF-β signaling pathway that cause or underlie altered cancer-related gene expression in both phases of early carcinogenesis and late cancer progression.
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35
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Matsumura N, Huang Z, Mori S, Baba T, Fujii S, Konishi I, Iversen ES, Berchuck A, Murphy SK. Epigenetic suppression of the TGF-beta pathway revealed by transcriptome profiling in ovarian cancer. Genome Res 2010; 21:74-82. [PMID: 21156726 DOI: 10.1101/gr.108803.110] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Epithelial ovarian cancer is the leading cause of death among gynecologic malignancies. Diagnosis usually occurs after metastatic spread, largely reflecting vague symptoms of early disease combined with lack of an effective screening strategy. Epigenetic mechanisms of gene regulation, including DNA methylation, are fundamental to normal cellular function and also play a major role in carcinogenesis. To elucidate the biological and clinical relevance of DNA methylation in ovarian cancer, we conducted expression microarray analysis of 39 cell lines and 17 primary culture specimens grown in the presence or absence of DNA methyltransferase (DNMT) inhibitors. Two parameters, induction of expression and standard deviation among untreated samples, identified 378 candidate methylated genes, many relevant to TGF-beta signaling. We analyzed 43 of these genes and they all exhibited methylation. Treatment with DNMT inhibitors increased TGF-beta pathway activity. Hierarchical clustering of ovarian cancers using the 378 genes reproducibly generated a distinct gene cluster strongly correlated with TGF-beta pathway activity that discriminates patients based on age. These data suggest that accumulation of age-related epigenetic modifications leads to suppression of TGF-beta signaling and contributes to ovarian carcinogenesis.
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Affiliation(s)
- Noriomi Matsumura
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Duke University Medical Center, Durham, North Carolina 27710, USA
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36
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Shinohara M, Mao M, Keeley TM, El–Zaatari M, Lee H, Eaton KA, Samuelson LC, Merchant JL, Goldenring JR, Todisco A. Bone morphogenetic protein signaling regulates gastric epithelial cell development and proliferation in mice. Gastroenterology 2010; 139:2050-2060.e2. [PMID: 20826155 PMCID: PMC3039550 DOI: 10.1053/j.gastro.2010.08.052] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 08/10/2010] [Accepted: 08/26/2010] [Indexed: 12/16/2022]
Abstract
BACKGROUND & AIMS We investigated the role of bone morphogenetic protein (BMP) signaling in the regulation of gastric epithelial cell growth and differentiation by generating transgenic mice that express the BMP inhibitor noggin in the stomach. METHODS The promoter of the mouse H+/K+-ATPase β-subunit gene, which is specifically expressed in parietal cells, was used to regulate expression of noggin in the gastric epithelium of mice. The transgenic mice were analyzed for noggin expression, tissue morphology, cellular composition of the gastric mucosa, gastric acid content, and plasma levels of gastrin. Tissues were analyzed by immunohistochemical, quantitative real-time polymerase chain reaction, immunoblot, microtitration, and radioimmunoassay analyses. RESULTS In the stomachs of the transgenic mice, phosphorylation of Smad 1, 5, and 8 decreased, indicating inhibition of BMP signaling. Mucosa were of increased height, with dilated glands, cystic structures, reduced numbers of parietal cells, and increased numbers of cells that coexpressed intrinsic factor, trefoil factor 2, and Griffonia (Bandeiraea) simplicifolia lectin II, compared with wild-type mice. In the transgenic mice, levels of the H+/K+-ATPase α-subunit protein and messenger RNA were reduced, whereas those of intrinsic factor increased. The transgenic mice were hypochloridric and had an increased number of Ki67- and proliferating cell nuclear antigen-positive cells; increased levels of plasma gastrin; increased expression of transforming growth factor-α, amphiregulin, and gastrin; and activation of extracellular signal-regulated kinase 2. CONCLUSIONS Inhibiting BMP signaling in the stomachs of mice by expression of noggin causes loss of parietal cells, development of transitional cells that express markers of mucus neck and zymogenic lineages, and activation of proliferation. BMPs are therefore important regulators of gastric epithelial cell homeostasis.
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Affiliation(s)
- Masahiko Shinohara
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Maria Mao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Theresa M. Keeley
- Department of Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Mohamad El–Zaatari
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Hyuk–Joon Lee
- Nashville Veterans Affairs Medical Center, Nashville,Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee,Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Kathryn A. Eaton
- Laboratory Animal Medicine Unit, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Linda C. Samuelson
- Department of Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Juanita L. Merchant
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan,Department of Molecular and Integrative Physiology, University of Michigan Medical Center, Ann Arbor, Michigan
| | - James R. Goldenring
- Nashville Veterans Affairs Medical Center, Nashville,Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee,Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Andrea Todisco
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan
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Wu WKK, Wang G, Coffelt SB, Betancourt AM, Lee CW, Fan D, Wu K, Yu J, Sung JJY, Cho CH. Emerging roles of the host defense peptide LL-37 in human cancer and its potential therapeutic applications. Int J Cancer 2010; 127:1741-7. [PMID: 20521250 DOI: 10.1002/ijc.25489] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Human cathelicidin LL-37, a host defense peptide derived from leukocytes and epithelial cells, plays a crucial role in innate and adaptive immunity. Not only does LL-37 eliminate pathogenic microbes directly but also modulates host immune responses. Emerging evidence from tumor biology studies indicates that LL-37 plays a prominent and complex role in carcinogenesis. Although overexpression of LL-37 has been implicated in the development or progression of many human malignancies, including breast, ovarian and lung cancers, LL-37 suppresses tumorigenesis in gastric cancer. These data are beginning to unveil the intricate and contradictory functions of LL-37. The reasons for the tissue-specific function of LL-37 in carcinogenesis remain to be elucidated. Here, we review the relationship between LL-37, its fragments and cancer progression as well as discuss the potential therapeutic implications of targeting this peptide.
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Affiliation(s)
- William K K Wu
- Institute of Digestive Diseases, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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Singh A, Morris RJ. The Yin and Yang of bone morphogenetic proteins in cancer. Cytokine Growth Factor Rev 2010; 21:299-313. [PMID: 20688557 DOI: 10.1016/j.cytogfr.2010.06.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Revised: 06/21/2010] [Accepted: 06/28/2010] [Indexed: 01/22/2023]
Abstract
Bone morphogenetic proteins (BMPs) were first studied as growth factors or morphogens of the transforming growth factor-beta superfamily. These growth molecules, originally associated with bone and cartilage development, are now known to play an important role in morphogenesis and homeostasis in many other tissues. More recently, significant contributions from BMPs, their receptors, and interacting molecules have been linked to carcinogenesis and tumor progression. On the other hand, BMPs can sometimes function as a tumor suppressor. Our report highlights these new roles in the pathogenesis of cancer that may suggest novel targets for therapeutic intervention.
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Affiliation(s)
- Ashok Singh
- Laboratory of Stem Cells and Cancer, The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
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Jae Huh W, Mysorekar IU, Mills JC. Inducible activation of Cre recombinase in adult mice causes gastric epithelial atrophy, metaplasia, and regenerative changes in the absence of "floxed" alleles. Am J Physiol Gastrointest Liver Physiol 2010; 299:G368-80. [PMID: 20413717 PMCID: PMC3774481 DOI: 10.1152/ajpgi.00021.2010] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The epithelium of the mammalian gastric body comprises multiple cell types replenished by a single stem cell. The adult conformation of cell lineages occurs well after birth; hence, study of genes regulating stem cell activity is facilitated by inducible systems for gene deletion. However, there is a potential pitfall involving the commonly used inducible Cre recombinase system to delete genes: we report here that induction of Cre using standard doses of tamoxifen led to marked spasmolytic polypeptide-expressing metaplasia of the stomach within days and profound atrophy of the entire epithelium with foci of hyperplasia by 2 wk even in the absence of loxP-flanked alleles. Cre induction caused genotoxicity with TdT-mediated dUTP nick-end labeling (TUNEL)-positive apoptosis (TUNEL-positive cells) and increased levels of DNA damage markers (gammaH2AX, p53, DDIT3, GADD45A). Although Cre was expressed globally by use of a chicken actin promoter, the effects were almost entirely stomach specific. Despite severe injury, a subset of mice showed near complete healing of the gastric mucosa 11-12 wk after Cre induction, suggesting substantial gastric regenerative capacity. Finally, we show that nongenotoxic doses of tamoxifen could be used to specifically delete loxP-flanked Bmpr1a, the receptor for bone morphogenetic protein 2, 4, and 7, causing antral polyps and marked antral-pyloric hyperplasia, consistent with previous reports on Bmpr1a. Together, the results show dose-dependent, potentially reversible sensitivity of the gastric mucosa to Cre genotoxicity. Thus we propose that tamoxifen induction of Cre could be used to induce genotoxic injury to study the regenerative capacity of the gastric epithelial stem cell.
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Affiliation(s)
- Won Jae Huh
- Departments of 1Pathology and Immunology, ,4Graduate Program in Developmental Biology, Washington University School of Medicine, St. Louis, Missouri
| | | | - Jason C. Mills
- Departments of 1Pathology and Immunology, ,2Developmental Biology,
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Wu WKK, Cho CH, Lee CW, Fan D, Wu K, Yu J, Sung JJY. Dysregulation of cellular signaling in gastric cancer. Cancer Lett 2010; 295:144-53. [PMID: 20488613 DOI: 10.1016/j.canlet.2010.04.025] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 04/26/2010] [Accepted: 04/27/2010] [Indexed: 02/07/2023]
Abstract
The pathogenesis of gastric cancer is complex and related to multiple factors. Dysregulation of intracellular signaling pathways represents a common pathogenic mechanism and may be amenable to drug targeting. Multiple well-established oncogenic pathways, such as those mediated by cell cycle regulators, nuclear factor-kappaB, cyclooxygenase-2 and epidermal growth factor receptor are implicated in gastric carcinogenesis. Emerging evidence also underscores the importance of signaling pathways involved in the developmental process, including transforming growth factor-beta/bone morphogenetic protein signaling, Wnt/beta-catenin signaling, Hedgehog signaling and Notch signaling. Understanding their biological significance will provide a rational basis for drug development. Their relative importance and cross-talk in gastric carcinogenesis, however, are still not completely understood and warrant further investigation.
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Affiliation(s)
- William K K Wu
- LKS Institute of Health, Department of Medicine and Therapeutics, The Chinese University of Hong Kong, China.
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Lee CWL, Ito K, Ito Y. Role of RUNX3 in bone morphogenetic protein signaling in colorectal cancer. Cancer Res 2010; 70:4243-52. [PMID: 20442291 DOI: 10.1158/0008-5472.can-09-3805] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bone morphogenetic proteins (BMPs), members of the transforming growth factor-beta (TGF-beta) superfamily, are multifunctional cytokines regulating a broad spectrum of biological functions. Recent studies show the presence of BMP receptor 1a mutations in juvenile polyposis and frequent Smad4 mutations in colon cancer, suggesting that aberrations in BMP signaling play an important role in intestinal cancer pathogenesis. However, the exact molecular mechanisms remain poorly understood. The Runt domain transcription factor RUNX3 is an integral component of signaling pathways mediated by TGF-beta and BMPs. RUNX3 is a gastric and colon tumor suppressor, functioning downstream of TGF-beta. Recently, we showed the tumor-suppressive effects of RUNX3 by its ability to attenuate beta-catenin/T-cell factors (TCFs) transactivation in intestinal tumorigenesis. Here, we explore the molecular basis of the tumor-suppressive function of the BMP pathway through RUNX3 in colorectal carcinogenesis. BMP exerted a growth-suppressive effect in HT-29, a human colorectal cancer cell line. c-Myc oncogene was found to be downregulated by BMP and/or RUNX3. We show that upregulation of RUNX3 by BMP reduces c-Myc expression. Evidence is presented suggesting that RUNX3 downregulates c-Myc expression by two parallel pathways-directly at the transcriptional level and through attenuation of beta-catenin/TCFs, downstream of BMPs in colorectal cancer cells.
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Affiliation(s)
- Cecilia Wei Lin Lee
- Cancer Science Institute of Singapore and NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore
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Wen XZ, Akiyama Y, Pan KF, Liu ZJ, Lu ZM, Zhou J, Gu LK, Dong CX, Zhu BD, Ji JF, You WC, Deng DJ. Methylation of GATA-4 and GATA-5 and development of sporadic gastric carcinomas. World J Gastroenterol 2010; 16:1201-8. [PMID: 20222162 PMCID: PMC2839171 DOI: 10.3748/wjg.v16.i10.1201] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To understand the implication of GATA-4 and GATA-5 methylation in gastric carcinogenesis.
METHODS: Methylation status of GATA-4 and GATA-5 CpG islands in human gastric mucosa samples, including normal gastric biopsies from 45 outpatients, gastric dysplasia [low-grade gastric intraepithelial neoplasia (GIN), n = 30; indefinite, n = 77], and 80 paired sporadic gastric carcinomas (SGC) as well as the adjacent non-neoplastic gastric tissues was analyzed by methylation specific polymerase chain reaction (MSP) and confirmed by denatured high performance liquid chromatography (DHPLC). Immunohistochemical staining was used to detect protein expression. The correlation between GATA-4 and GATA-5 methylation and clinicopathological characteristics of patients including Helicobacter pylori (H. pylori) infection was analyzed.
RESULTS: GATA-4 and GATA-5 methylation was frequently observed in SGCs (53.8% and 61.3%, respectively) and their corresponding normal tissues (41.3% and 46.3%) by MSP. The result of MSP was consistent with that of DHPLC. Loss of both GATA-4 and GATA-5 proteins was associated with their methylation in SGCs (P = 0.01). Moreover, a high frequency of GATA-4 and GATA-5 methylation was found in both gastric low-grade GIN (57.1% and 69.0%) and indefinite for dysplasia (42.9% and 46.7%), respectively. However, GATA-4 and GATA-5 methylation was detected only in 4/32 (12.5%) and 3/39 (7.7%) of normal gastric biopsies. GATA-4 methylation in both normal gastric mucosa and low-grade GIN was also significantly associated with H. pylori infection (P = 0.023 and 0.027, two-sides).
CONCLUSION: Epigenetic inactivation of GATA-4 (and GATA-5) by methylation of CpG islands is an early frequent event during gastric carcinogenesis and is significantly correlated with H. pylori infection.
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Wu WKK, Sung JJY, To KF, Yu L, Li HT, Li ZJ, Chu KM, Yu J, Cho CH. The host defense peptide LL-37 activates the tumor-suppressing bone morphogenetic protein signaling via inhibition of proteasome in gastric cancer cells. J Cell Physiol 2010; 223:178-86. [PMID: 20054823 DOI: 10.1002/jcp.22026] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The human cathelicidin LL-37, a pleiotropic host defense peptide, is down-regulated in gastric adenocarcinomas. We therefore investigated whether this peptide suppresses gastric cancer growth. LL-37 lowered gastric cancer cell proliferation and delayed G(1)-S transition in vitro and inhibits the growth of gastric cancer xenograft in vivo. In this connection, LL-37 increased the tumor-suppressing bone morphogenetic protein (BMP) signaling, manifested as an increase in BMP4 expression and the subsequent Smad1/5 phosphorylation and the induction of p21(Waf1/Cip1). The anti-mitogenic effect, Smad1/5 phosphorylation, and p21(Waf1/Cip1) up-regulation induced by LL-37 were reversed by the knockdown of BMP receptor II. The activation of BMP signaling was paralleled by the inhibition of chymotrypsin-like and caspase-like activity of proteasome. In this regard, proteasome inhibitor MG-132 mimicked the effect of LL-37 by up-regulating BMP4 expression and Smad1/5 phosphorylation. Further analysis of clinical samples revealed that LL-37 and p21(Waf1/Cip1) mRNA expressions were both down-regulated in gastric cancer tissues and their expressions were positively correlated. Collectively, we describe for the first time that LL-37 inhibits gastric cancer cell proliferation through activation of BMP signaling via a proteasome-dependent mechanism. This unique biological activity may open up novel therapeutic avenue for the treatment of gastric cancer.
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Affiliation(s)
- William Ka Kei Wu
- Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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Extracellular BMP-antagonist regulation in development and disease: tied up in knots. Trends Cell Biol 2010; 20:244-56. [PMID: 20188563 DOI: 10.1016/j.tcb.2010.01.008] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Revised: 01/20/2010] [Accepted: 01/20/2010] [Indexed: 01/11/2023]
Abstract
Developmental processes are regulated by the bone morphogenetic protein (BMP) family of secreted molecules. BMPs bind to serine/threonine kinase receptors and signal through the canonical Smad pathway and other intracellular effectors. Integral to the control of BMPs is a diverse group of secreted BMP antagonists that bind to BMPs and prevent engagement with their cognate receptors. Tight temporospatial regulation of both BMP and BMP-antagonist expression provides an exquisite control system for developing tissues. Additional facets of BMP-antagonist biology, such as crosstalk with Wnt and Sonic hedgehog signaling during development, have been revealed in recent years. In addition, previously unappreciated roles for the BMP antagonists in kidney fibrosis and cancer have been elucidated. This review provides a description of BMP-antagonist biology, together with highlights of recent novel insights into the role of these antagonists in development, signal transduction and human disease.
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Hiraki M, Kitajima Y, Sato S, Nakamura J, Hashiguchi K, Noshiro H, Miyazaki K. Aberrant gene methylation in the peritoneal fluid is a risk factor predicting peritoneal recurrence in gastric cancer. World J Gastroenterol 2010; 16:330-8. [PMID: 20082478 PMCID: PMC2807953 DOI: 10.3748/wjg.v16.i3.330] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate whether gene methylation in the peritoneal fluid (PF) predicts peritoneal recurrence in gastric cancer patients.
METHODS: The gene methylation of CHFR (checkpoint with forkhead and ring finger domains), p16, RUNX3 (runt-related transcription factor 3), E-cadherin, hMLH1 (mutL homolog 1), ABCG2 (ATP-binding cassette, sub-family G, member 2) and BNIP3 (BCL2/adenovirus E1B 19 kDa interacting protein 3) were analyzed in 80 specimens of PF by quantitative methylation-specific polymerase chain reaction (PCR). Eighty patients were divided into 3 groups; Group A (n = 35): the depth of cancer invasion was less than the muscularis propria; Group B (n = 31): the depth of cancer invasion was beyond the muscularis propria. Both group A and B were diagnosed as no cancer cells in peritoneal cytology and histology; Group C (n = 14): disseminated nodule was histologically diagnosed or cancer cells were cytologically defined in the peritoneal cavity.
RESULTS: The positive rates of methylation in CHFR, E-cadherin and BNIP3 were significantly different among the 3 groups and increased in order of group A, B and C (0%, 0% and 21% in CHFR, P < 0.05; 20%, 45% and 50% in E-cadherin, P < 0.05; 26%, 35% and 71% in BNIP3, P < 0.05). In addition, the multigene methylation rate among CHFR, E-cadherin and BNIP3 was correlated with group A, B and C (9%, 19% and 57%, P < 0.001). Moreover, the prognosis was analyzed in group B, excluding 3 patients who underwent a non-curative resection. Two of the 5 patients with multigene methylation showed peritoneal recurrence after surgery, while those without or with a single gene methylation did not experience recurrence (P < 0.05).
CONCLUSION: This study suggested that gene methylation in the PF could detect occult neoplastic cells in the peritoneum and might be a risk factor for peritoneal metastasis.
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Hashimoto Y, Akiyama Y, Otsubo T, Shimada S, Yuasa Y. Involvement of epigenetically silenced microRNA-181c in gastric carcinogenesis. Carcinogenesis 2010; 31:777-84. [PMID: 20080834 DOI: 10.1093/carcin/bgq013] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aberrant expression of microRNA (miRNA) has been reported in various cancers. To clarify the role of miRNA in gastric carcinogenesis, we performed miRNA microarray analysis and investigated expression changes of miRNAs in a 5-aza-2'-deoxycytidine (5-aza-CdR)-treated gastric cancer cell line, KATO-III. On microarray analysis, five miRNAs were found to be upregulated (>3-fold) after 5-aza-CdR treatment compared with untreated cells. Among them, miR-181c and miR-432AS exhibited CpG islands in their upstream sequences on computational analysis, and their upregulation was verified by reverse transcription-polymerase chain reaction analyses. In particular, miR-181c upregulation was found not only in KATO-III but also in two other gastric and one colorectal cancer cell line with 5-aza-CdR treatment. Decreased expression of miR-181c was observed in 9 of 16 primary gastric carcinoma (GC) cases compared with the corresponding non-cancerous stomach tissues. Hypermethylation signals in the upstream region of miR-181c were observed in some cultured and primary GC cells with negative or low miR-181c expression. Transfection of the precursor miR-181c molecule induced decreased growth of two gastric cancer cell lines, KATO-III and MKN45. As for targets of miR-181c, oncogenic NOTCH4 and KRAS were identified by complementary DNA microarray analysis after precursor miR-181c molecule transfection, computational searches of miRNA target databases and reporter assaying using the 3'-untranslated regions of the two genes. These results indicate that miR-181c may be silenced through methylation and play important roles in gastric carcinogenesis through its target genes, such as NOTCH4 and KRAS.
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Affiliation(s)
- Yutaka Hashimoto
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
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Sun S, Yan PS, Huang THM, Lin S. Identifying differentially methylated genes using mixed effect and generalized least square models. BMC Bioinformatics 2009; 10:404. [PMID: 20003206 PMCID: PMC2800121 DOI: 10.1186/1471-2105-10-404] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Accepted: 12/09/2009] [Indexed: 11/10/2022] Open
Abstract
Background DNA methylation plays an important role in the process of tumorigenesis. Identifying differentially methylated genes or CpG islands (CGIs) associated with genes between two tumor subtypes is thus an important biological question. The methylation status of all CGIs in the whole genome can be assayed with differential methylation hybridization (DMH) microarrays. However, patient samples or cell lines are heterogeneous, so their methylation pattern may be very different. In addition, neighboring probes at each CGI are correlated. How these factors affect the analysis of DMH data is unknown. Results We propose a new method for identifying differentially methylated (DM) genes by identifying the associated DM CGI(s). At each CGI, we implement four different mixed effect and generalized least square models to identify DM genes between two groups. We compare four models with a simple least square regression model to study the impact of incorporating random effects and correlations. Conclusions We demonstrate that the inclusion (or exclusion) of random effects and the choice of correlation structures can significantly affect the results of the data analysis. We also assess the false discovery rate of different models using CGIs associated with housekeeping genes.
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Affiliation(s)
- Shuying Sun
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio 44106, USA.
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Hiraki M, Kitajima Y, Sato S, Mitsuno M, Koga Y, Nakamura J, Hashiguchi K, Noshiro H, Miyazaki K. Aberrant gene methylation in the lymph nodes provides a possible marker for diagnosing micrometastasis in gastric cancer. Ann Surg Oncol 2009; 17:1177-86. [PMID: 19957042 DOI: 10.1245/s10434-009-0815-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Indexed: 01/03/2023]
Abstract
BACKGROUND This study was designed to determine whether gene methylation is a novel diagnostic marker for micrometastasis to the lymph nodes (LNs) in gastric cancer. METHODS The gene methylation of CHFR, p16, RUNX3, E-cadherin, MGMT, hMLH1, and ABCG2 genes were analyzed in 49 primary gastric cancer tissues, corresponding to noncancerous tissues and matched LNs by quantitative methylation-specific PCR (q-MSP). RESULTS CHFR, RUNX3, MGMT, and hMLH1 were more frequently methylated in primary cancer compared with the noncancerous mucosa. Further analyses investigated whether the methylation of the four cancer-specific genes was preserved in LN tissues using the 29 control cases, in which LN metastasis had been histologically confirmed. The methylation of both lesions (M/M pattern) in at least one gene, which was judged to be positive for cancer cells in LNs, was observed in 25 of 29 cases (86%). Quantitative RT-PCR (qRT-PCR) of CEA, CK19, and CK20 mRNA was conducted using the same samples. The mRNA expression of at least one of the three genes was observed in 100% of the specimens. The results of the control analysis were used to attempt to predict micrometastasis by q-MSP and qRT-PCR in the 20 test cases without histological LN metastasis. Six cases (30%) showed the M/M pattern in at least one of the four genes. Three of 20 cases (15%) exhibited both the M/M pattern and positive mRNA. CONCLUSIONS The methylation analysis revealed the clinical feasibility of detecting occult neoplastic cells in the regional LNs.
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Affiliation(s)
- Masatsugu Hiraki
- Department of Surgery, Saga University Faculty of Medicine, 5-1-1 Nabeshima, Saga, 849-8501, Japan
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Abstract
The development of gastric cancer is closely associated with Helicobacter pylori (H. pylori) infection. The expression of cylooxigenase-2 (COX-2), a rate-limiting enzyme for prostaglandin biosynthesis, is induced in H. pylori-associated chronic gastritis, which thus results in the induction of proinflammatory prostaglandin, PGE(2). The COX-2/PGE(2) pathway plays a key role in gastric tumorigenesis. On the other hand, several oncogenic pathways have been shown to trigger gastric tumorigenesis. The activation of Wnt/beta-catenin signaling is found in 30-50% of gastric cancers, thus suggesting that Wnt signaling plays a causal role in gastric cancer development. Mutations in the bone morphogenetic protein (BMP) signaling pathway are responsible for the subset of juvenile polyposis syndrome (JPS) that develops hamartomas in the gastrointestinal tract. BMP suppression appears to contribute to gastric cancer development because gastric cancer risk is increased in JPS. Wnt signaling is important for the maintenance of gastrointestinal stem cells, while BMP promotes epithelial cell differentiation. Accordingly, it is possible that both Wnt activation and BMP suppression can cause gastric tumorigenesis through enhancement of the undifferentiated status of epithelial cells. Recent mouse model studies have indicated that induction of the PGE(2) pathway is required for the development of both gastric adenocarcinoma and hamartoma in the Wnt-activated and BMP-suppressed gastric mucosa, respectively. This article reviews the involvement of the PGE(2), Wnt, and BMP pathways in the development of gastric cancer, and gastric phenotypes that are found in transgenic mouse models of PGE(2) induction, Wnt activation, BMP suppression, or a combination of these pathways.
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Affiliation(s)
- Hiroko Oshima
- Division of Genetics, Cancer Research Institute, Kanazawa University, Takara-machi, Kanazawa, Japan
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Johnsen IK, Kappler R, Auernhammer CJ, Beuschlein F. Bone morphogenetic proteins 2 and 5 are down-regulated in adrenocortical carcinoma and modulate adrenal cell proliferation and steroidogenesis. Cancer Res 2009; 69:5784-92. [PMID: 19584291 DOI: 10.1158/0008-5472.can-08-4428] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Bone morphogenetic proteins (BMP) have been shown to affect tumorigenesis in a variety of tumors. Quantitative PCR analysis revealed down-regulation of BMP2 and BMP5 in tissue samples from adrenocortical carcinoma and adrenocortical tumor cell lines compared with normal adrenal glands. Integrity of BMP-dependent pathways in these cell lines could be shown by activation of the Smad1/5/8 pathway with subsequent increase of ID protein expression upon incubation with BMP2 or BMP5. On a functional level, BMP treatment resulted in inhibition of cell proliferation and viability in a dose- and time-dependent manner. This growth inhibitory effect was associated with BMP-dependent reduction of AKT phosphorylation under baseline conditions and under insulin-like growth factor costimulation. Furthermore, steroidogenic function, including melanocortin-2 receptor and steroidogenic enzyme expressions, was profoundly reduced. In vitro demethylation treatment and overexpression of GATA6 resulted in reactivation of BMP-dependent pathways with concomitant modulation of steroidogenesis. Taken together, we show that loss of expression of members of the BMP family of ligands is a common finding in adrenocortical tumors and we provide evidence that BMP-dependent pathways are likely to be involved in the modulation of the malignant and functional phenotype of adrenocortical cancer cells.
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Affiliation(s)
- Inga K Johnsen
- Departments of Medicine, University Hospital Innenstadt, Ludwig Maximilians University, Munich, Germany
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