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Kwon HJ, Park Y, Nam SK, Kang E, Kim KK, Jeong I, Kwak Y, Yoon J, Kim TY, Lee KW, Oh DY, Im SA, Kong SH, Park DJ, Lee HJ, Kim HH, Yang HK, Lee HS. Genetic and immune microenvironment characterization of HER2-positive gastric cancer: Their association with response to trastuzumab-based treatment. Cancer Med 2023; 12:10371-10384. [PMID: 36916290 DOI: 10.1002/cam4.5769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/07/2023] [Accepted: 02/22/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND We aimed to determine the molecular and immune microenvironment characteristics of HER2-positive gastric cancer (GC) related to the patient's response to first-line trastuzumab-based treatment. METHODS Eighty-three cases of HER2-positive advanced gastric adenocarcinoma patients treated with trastuzumab were enrolled. Targeted deep sequencing and transcriptome analysis were performed on selected 21 cases (exploration cohort) along with two post-treatment samples. The results were compared between patients progressed before 6 months (Group 2) and others (Group 1), and were validated by FISH and immunohistochemistry in total cohort. Tumor-infiltrating immune cells were evaluated using RNA sequencing data and multiplex immunohistochemistry. Progression-free survival (PFS) analysis was performed. RESULTS Group 1 showed frequent amplification of G1/S cell cycle checkpoint-related genes and upregulated KEGG pathways related to cell proliferation. In contrast, Group 2 had more frequent EGFR, HER3, and MET amplification and higher RNA expression in immune-related KEGG pathways than Group 1. In total cohort, significant predictors of better PFS were cell cycle-related including CCNE1 amplification, Cyclin A and PLK1 overexpression, and decreased Cyclin D3 and HER3 expression (p < 0.05), or immune-related including high density of CD3- CD57+ NK cells and PD-L1 combined positive score ≥5 (p < 0.05). The best prognostic predictors were a combination of Cyclin A, Cyclin E, p21, and HER3 (p < 0.001). CONCLUSION HER2-positive GC with favorable response to trastuzumab were characterized by cell cycle-related gene alterations and increased CD3- CD57+ NK cell infiltration. These findings would be helpful to the fine modulation of therapeutic strategies for patients with HER2-positive GC.
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Affiliation(s)
- Hyun Jung Kwon
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Yujun Park
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Soo Kyung Nam
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Integrated Major in Innovative Medical Science, Seoul National University Graduate School, Seoul, Republic of Korea
| | - Enoch Kang
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | | | | | - Yoonjin Kwak
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeesun Yoon
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Tae-Yong Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Keun-Wook Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Do-Youn Oh
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Integrated Major in Innovative Medical Science, Seoul National University Graduate School, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seock-Ah Im
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Integrated Major in Innovative Medical Science, Seoul National University Graduate School, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Do Joong Park
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyuk-Joon Lee
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyung-Ho Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Han-Kwang Yang
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
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2
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Javed A, Yarmohammadi M, Korkmaz KS, Rubio-Tomás T. The Regulation of Cyclins and Cyclin-Dependent Kinases in the Development of Gastric Cancer. Int J Mol Sci 2023; 24:ijms24032848. [PMID: 36769170 PMCID: PMC9917736 DOI: 10.3390/ijms24032848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/23/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023] Open
Abstract
Gastric cancer predominantly occurs in adenocarcinoma form and is characterized by uncontrolled growth and metastases of gastric epithelial cells. The growth of gastric cells is regulated by the action of several major cell cycle regulators including Cyclins and Cyclin-dependent kinases (CDKs), which act sequentially to modulate the life cycle of a living cell. It has been reported that inadequate or over-activity of these molecules leads to disturbances in cell cycle dynamics, which consequently results in gastric cancer development. Manny studies have reported the key roles of Cyclins and CDKs in the development and progression of the disease in either in vitro cell culture studies or in vivo models. We aimed to compile the evidence of molecules acting as regulators of both Cyclins and CDKs, i.e., upstream regulators either activating or inhibiting Cyclins and CDKs. The review entails an introduction to gastric cancer, along with an overview of the involvement of cell cycle regulation and focused on the regulation of various Cyclins and CDKs in gastric cancer. It can act as an extensive resource for developing new hypotheses for future studies.
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Affiliation(s)
- Aadil Javed
- Department of Bioengineering, Faculty of Engineering, Cancer Biology Laboratory, Ege University, Izmir 35040, Turkey
- Correspondence: (A.J.); (T.R.-T.)
| | - Mahdieh Yarmohammadi
- Department of Biology, Faculty of Sciences, Central Tehran Branch, Islamic Azad University, Tehran 33817-74895, Iran
| | - Kemal Sami Korkmaz
- Department of Bioengineering, Faculty of Engineering, Cancer Biology Laboratory, Ege University, Izmir 35040, Turkey
| | - Teresa Rubio-Tomás
- School of Medicine, University of Crete, 70013 Herakleion, Crete, Greece
- Correspondence: (A.J.); (T.R.-T.)
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3
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Safeguarding DNA Replication: A Golden Touch of MiDAS and Other Mechanisms. Int J Mol Sci 2022; 23:ijms231911331. [PMID: 36232633 PMCID: PMC9570362 DOI: 10.3390/ijms231911331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022] Open
Abstract
DNA replication is a tightly regulated fundamental process allowing the correct duplication and transfer of the genetic information from the parental cell to the progeny. It involves the coordinated assembly of several proteins and protein complexes resulting in replication fork licensing, firing and progression. However, the DNA replication pathway is strewn with hurdles that affect replication fork progression during S phase. As a result, cells have adapted several mechanisms ensuring replication completion before entry into mitosis and segregating chromosomes with minimal, if any, abnormalities. In this review, we describe the possible obstacles that a replication fork might encounter and how the cell manages to protect DNA replication from S to the next G1.
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4
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Saddozai UAK, Wang F, Khattak S, Akbar MU, Badar M, Khan NH, Zhang L, Zhu W, Xie L, Li Y, Ji X, Guo X. Define the Two Molecular Subtypes of Epithelioid Malignant Pleural Mesothelioma. Cells 2022; 11:cells11182924. [PMID: 36139498 PMCID: PMC9497219 DOI: 10.3390/cells11182924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/25/2022] [Accepted: 09/08/2022] [Indexed: 11/20/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is a fatal disease of respiratory system. Despite the availability of invasive biomarkers with promising results, there are still significant diagnostic and therapeutic challenges in the treatment of MPM. One of three main mesothelioma cell types, epithelioid mesothelioma makes up approximately 70% of all mesothelioma cases. Different observational findings are under process, but the molecular heterogeneity and pathogenesis of epithelioid malignant pleural mesothelioma (eMPM) are still not well understood. Through molecular analysis, expression profiling data were used to determine the possibility and optimal number of eMPM molecular subtypes. Next, clinicopathological characteristics and different molecular pathways of each subtype were analyzed to prospect the clinical applications and advanced mechanisms of eMPM. In this study, we identified two distinct epithelioid malignant pleural mesothelioma subtypes with distinct gene expression patterns. Subtype I eMPMs were involved in steroid hormone biosynthesis, porphyrin and chlorophyll metabolism, and drug metabolism, while subtype II eMPMs were involved in rational metabolism, tyrosine metabolism, and chemical carcinogenesis pathways. Additionally, we identified potential subtype-specific therapeutic targets, including CCNE1, EPHA3, RNF43, ROS1, and RSPO2 for subtype I and CDKN2A and RET for subtype II. Considering the need for potent diagnostic and therapeutic biomarkers for eMPM, we are anticipating that our findings will help both in exploring underlying mechanisms in the development of eMPM and in designing targeted therapy for eMPM.
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Affiliation(s)
- Umair Ali Khan Saddozai
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Fengling Wang
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Saadullah Khattak
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Muhammad Usman Akbar
- Gomal Center of Biochemistry and Biotechnology, Gomal University, Dera Ismail Khan 29050, Pakistan
| | - Muhammad Badar
- Gomal Center of Biochemistry and Biotechnology, Gomal University, Dera Ismail Khan 29050, Pakistan
| | - Nazeer Hussain Khan
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Lu Zhang
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Wan Zhu
- Department of Anesthesia, Stanford University, 300 Pasteur Drive, Stanford, CA 94305, USA
| | - Longxiang Xie
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Yongqiang Li
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
| | - Xinying Ji
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
- Correspondence: (X.J.); (X.G.)
| | - Xiangqian Guo
- Department of Preventive Medicine, Institute of Bioinformatics Center, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng 475004, China
- Correspondence: (X.J.); (X.G.)
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5
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Zhang LQ, Zhou SL, Li JK, Chen PN, Zhao XK, Wang LD, Li XL, Zhou FY. Identification of a seven-cell cycle signature predicting overall survival for gastric cancer. Aging (Albany NY) 2022; 14:3989-3999. [PMID: 35537781 PMCID: PMC9134949 DOI: 10.18632/aging.204060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 04/25/2022] [Indexed: 11/25/2022]
Abstract
While genetic alterations in several regulators of the cell cycle have a significant impact on the gastric carcinogenesis process, the prognostic role of them remains to be further elucidated. The TCGA-STAD training set were downloaded and the mRNA expression matrix of cell cycle genes was extracted and corrected for further analysis after taking the intersection with GSE84437 dataset. Differentially expressed mRNAs were identified between tumor and normal tissue samples in TCGA-STAD. Univariate Cox regression analysis and lasso Cox regression model established a novel seven-gene cell cycle signature (including GADD45B, TFDP1, CDC6, CDC25A, CDC7, SMC1A and MCM3) for GC prognosis prediction. Patients in the high-risk group shown significantly poorer survival than patients in the low-risk group. The signature was found to be an independent prognostic factor for GC survival. Nomogram including the signature shown some clinical net benefit for overall survival prediction. The signature was further validated in the GSE84437 dataset. In tissue microarray, CDC6 and MCM3 protein expression were significant differences by the immunohistochemistry-based H-score between tumor tissues and adjacent tissues, and CDC6 is an independent prognostic factor for GC. Interestingly, our GSEA revealed that low-risk patients were more related to cell cycle pathways and might benefit more from therapies targeting cell cycle. Our study identified a novel robust seven-gene cell cycle signature for GC prognosis prediction that may serve as a beneficial complement to clinicopathological staging. The signature might provide potential biomarkers for the application of cell cycle regulators to therapies and treatment response prediction.
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Affiliation(s)
- Lian-Qun Zhang
- Department of Gastroenterology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou 450003, Henan, China
| | - Sheng-Li Zhou
- Department of Pathology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou 450003, Henan, China
| | - Jun-Kuo Li
- Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang 455000, Henan, China
| | - Pei-Nan Chen
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450008, Henan, China
| | - Xue-Ke Zhao
- State Key Laboratory of Esophageal Cancer Prevention and Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, Henan, China
| | - Li-Dong Wang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, Henan, China
| | - Xiu-Ling Li
- Department of Gastroenterology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou 450003, Henan, China
| | - Fu-You Zhou
- Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang 455000, Henan, China
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6
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Isoforms of the p53 Family and Gastric Cancer: A Ménage à Trois for an Unfinished Affair. Cancers (Basel) 2021; 13:cancers13040916. [PMID: 33671606 PMCID: PMC7926742 DOI: 10.3390/cancers13040916] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/06/2021] [Accepted: 02/17/2021] [Indexed: 12/17/2022] Open
Abstract
Simple Summary The p53 family is a complex family of transcription factors with different cellular functions that are involved in several physiological processes. A massive amount of data has been accumulated on their critical role in the tumorigenesis and the aggressiveness of cancers of different origins. If common features are observed, there are numerous specificities that may reflect particularities of the tissues from which the cancers originated. In this regard, gastric cancer tumorigenesis is rather remarkable, as it is induced by bacterial and viral infections, various chemical carcinogens, and familial genetic alterations, which provide an example of the variety of molecular mechanisms responsible for cell transformation and how they impact the p53 family. This review summarizes the knowledge gathered from over 40 years of research on the role of the p53 family in gastric cancer, which still displays one of the most elevated mortality rates amongst all types of cancers. Abstract Gastric cancer is one of the most aggressive cancers, with a median survival of 12 months. This illustrates its complexity and the lack of therapeutic options, such as personalized therapy, because predictive markers do not exist. Thus, gastric cancer remains mostly treated with cytotoxic chemotherapies. In addition, less than 20% of patients respond to immunotherapy. TP53 mutations are particularly frequent in gastric cancer (±50% and up to 70% in metastatic) and are considered an early event in the tumorigenic process. Alterations in the expression of other members of the p53 family, i.e., p63 and p73, have also been described. In this context, the role of the members of the p53 family and their isoforms have been investigated over the years, resulting in conflicting data. For instance, whether mutations of TP53 or the dysregulation of its homologs may represent biomarkers for aggressivity or response to therapy still remains a matter of debate. This uncertainty illustrates the lack of information on the molecular pathways involving the p53 family in gastric cancer. In this review, we summarize and discuss the most relevant molecular and clinical data on the role of the p53 family in gastric cancer and enumerate potential therapeutic innovative strategies.
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7
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Ooi WF, Nargund AM, Lim KJ, Zhang S, Xing M, Mandoli A, Lim JQ, Ho SWT, Guo Y, Yao X, Lin SJ, Nandi T, Xu C, Ong X, Lee M, Tan ALK, Lam YN, Teo JX, Kaneda A, White KP, Lim WK, Rozen SG, Teh BT, Li S, Skanderup AJ, Tan P. Integrated paired-end enhancer profiling and whole-genome sequencing reveals recurrent CCNE1 and IGF2 enhancer hijacking in primary gastric adenocarcinoma. Gut 2020; 69:1039-1052. [PMID: 31542774 DOI: 10.1136/gutjnl-2018-317612] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 08/22/2019] [Accepted: 09/01/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Genomic structural variations (SVs) causing rewiring of cis-regulatory elements remain largely unexplored in gastric cancer (GC). To identify SVs affecting enhancer elements in GC (enhancer-based SVs), we integrated epigenomic enhancer profiles revealed by paired-end H3K27ac ChIP-sequencing from primary GCs with tumour whole-genome sequencing (WGS) data (PeNChIP-seq/WGS). DESIGN We applied PeNChIP-seq to 11 primary GCs and matched normal tissues combined with WGS profiles of >200 GCs. Epigenome profiles were analysed alongside matched RNA-seq data to identify tumour-associated enhancer-based SVs with altered cancer transcription. Functional validation of candidate enhancer-based SVs was performed using CRISPR/Cas9 genome editing, chromosome conformation capture assays (4C-seq, Capture-C) and Hi-C analysis of primary GCs. RESULTS PeNChIP-seq/WGS revealed ~150 enhancer-based SVs in GC. The majority (63%) of SVs linked to target gene deregulation were associated with increased tumour expression. Enhancer-based SVs targeting CCNE1, a key driver of therapy resistance, occurred in 8% of patients frequently juxtaposing diverse distal enhancers to CCNE1 proximal regions. CCNE1-rearranged GCs were associated with high CCNE1 expression, disrupted CCNE1 topologically associating domain (TAD) boundaries, and novel TAD interactions in CCNE1-rearranged primary tumours. We also observed IGF2 enhancer-based SVs, previously noted in colorectal cancer, highlighting a common non-coding genetic driver alteration in gastric and colorectal malignancies. CONCLUSION Integrated paired-end NanoChIP-seq and WGS of gastric tumours reveals tumour-associated regulatory SV in regions associated with both simple and complex genomic rearrangements. Genomic rearrangements may thus exploit enhancer-hijacking as a common mechanism to drive oncogene expression in GC.
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Affiliation(s)
- Wen Fong Ooi
- Cancer Therapeutics and Stratified Oncology, Genome Institute of Singapore, Singapore
| | - Amrita M Nargund
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Kevin Junliang Lim
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore.,Centre for Computational Biology, Duke-NUS Medical School, Singapore
| | - Shenli Zhang
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Manjie Xing
- Cancer Therapeutics and Stratified Oncology, Genome Institute of Singapore, Singapore
| | - Amit Mandoli
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Jing Quan Lim
- Lymphoma Genomic Translational Laboratory, National Cancer Centre Singapore, Singapore
| | - Shamaine Wei Ting Ho
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Yu Guo
- Computational and Systems Biology, Genome Institute of Singapore, Singapore
| | - Xiaosai Yao
- Cancer Therapeutics and Stratified Oncology, Genome Institute of Singapore, Singapore
| | - Suling Joyce Lin
- Cancer Therapeutics and Stratified Oncology, Genome Institute of Singapore, Singapore
| | - Tannistha Nandi
- Cancer Therapeutics and Stratified Oncology, Genome Institute of Singapore, Singapore
| | - Chang Xu
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Xuewen Ong
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Minghui Lee
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Angie Lay-Keng Tan
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Yue Ning Lam
- Cancer Therapeutics and Stratified Oncology, Genome Institute of Singapore, Singapore
| | - Jing Xian Teo
- SingHealth/Duke-NUS Institute of Precision Medicine, National Heart Centre, Singapore
| | - Atsushi Kaneda
- Department of Molecular Oncology, Chiba University, Chiba, Japan
| | - Kevin P White
- Institute for Genomics and Systems Biology, University of Chicago and Argonne National Laboratory, Chicago, Illinois, USA.,Tempus Labs, Chicago, Illinois, USA
| | - Weng Khong Lim
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore.,SingHealth/Duke-NUS Institute of Precision Medicine, National Heart Centre, Singapore
| | - Steven G Rozen
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore.,Centre for Computational Biology, Duke-NUS Medical School, Singapore.,SingHealth/Duke-NUS Institute of Precision Medicine, National Heart Centre, Singapore
| | - Bin Tean Teh
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore.,SingHealth/Duke-NUS Institute of Precision Medicine, National Heart Centre, Singapore.,Laboratory of Cancer Epigenome, National Cancer Centre Singapore, Singapore
| | - Shang Li
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore
| | - Anders J Skanderup
- Computational and Systems Biology, Genome Institute of Singapore, Singapore
| | - Patrick Tan
- Cancer Therapeutics and Stratified Oncology, Genome Institute of Singapore, Singapore .,Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore.,Cancer Science Institute of Singapore, National University of Singapore, Singapore.,SingHealth/Duke-NUS Institute of Precision Medicine, National Heart Centre, Singapore
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8
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Guo SS, Wang Y, Fan QX. Raddeanin A promotes apoptosis and ameliorates 5-fluorouracil resistance in cholangiocarcinoma cells. World J Gastroenterol 2019; 25:3380-3391. [PMID: 31341363 PMCID: PMC6639556 DOI: 10.3748/wjg.v25.i26.3380] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/18/2019] [Accepted: 06/01/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Bile duct cancer is characterized by fast metastasis and invasion and has been regarded as one of the most aggressive tumors due to the absence of effective diagnosis at an early stage. Therefore, it is in the urgent demand to explore novel diagnostic approaches and therapeutic strategies for bile duct cancer to improve patient survival. Raddeanin A (RA) is extracted from the anemone raddeana regel and has been demonstrated to play antitumor roles in various cancers.
AIM To investigate the effects of RA treatment on bile duct cancer cells.
METHODS In this study, four cholangiocarcinoma cell lines (RBE, LIPF155C, LIPF178C, and LICCF) treated with RA were used to test the cell viability. The RA-associated cell functional analysis, 5-fluorouracil (5-Fu) effectiveness as well as cell cycle- and apoptosis-related protein expression were investigated.
RESULTS RA reduced cell viability in a dose-dependent pattern in four cell lines, and the migration and colony formation abilities were also impaired by RA in RBE and LIPF155C cell lines. RA sensitized cell lines to 5-Fu treatment and enhanced the effects of 5-Fu in cholangiocarcinoma. Also, RA decreased protein expression of Wee1, while the combinational effect of RA and 5-Fu decreased protein expressions of cyclooxygenase-2, B cell lymphoma 2, and Wee1 but increased protein levels of Bax, cyclin D1, and cyclin E.
CONCLUSION Taken together, the results suggest that RA acts as an anti-cancer agent and enhancer of 5-Fu in bile duct cancer cells via regulating multiple cell cycle and apoptosis-related proteins. This finding provides novel clues to exploring a novel antitumor drug for bile duct cancer.
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Affiliation(s)
- Shuang-Shuang Guo
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
- Department of Oncology, First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang 471000, Henan Province, China
| | - Ying Wang
- Department of Oncology, First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang 471000, Henan Province, China
| | - Qing-Xia Fan
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
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9
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Down-regulation of CCNE1 expression suppresses cell proliferation and sensitizes gastric carcinoma cells to Cisplatin. Biosci Rep 2019; 39:BSR20190381. [PMID: 31072916 PMCID: PMC6549211 DOI: 10.1042/bsr20190381] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/22/2019] [Accepted: 04/29/2019] [Indexed: 12/31/2022] Open
Abstract
A novel oncogene CCNE1 (cyclin E) is considered to be associated with the development of various tumor types, its role in gastric carcinoma (GC) is little studied and the effect of CCNE1 on chemotherapy also remains unclear. We recruited 55 cases of GC tissues and corresponding normal tissues. Immunohistochemistry (IHC), quantitative real-time PCR (qRT-PCR) and Western blot analysis were performed to detect the expression of CCNE1. We also examined the expression of CCNE1 in gastric mucosal GES-1 cells and five GC cell lines. Silencing CCNE1 was used to assess its effect on proliferation and cell cycle in MGC-803 and NCI-N87 cells, as performed by Cell counting kit-8 (CCK-8) and flow cytometry assay. Meanwhile, cell cycle related genes were also detected through qRT-PCR and Western blot. The results showed CCNE1 up-regulation mainly expressed in GC tissues and GC cell lines, also was associated with tumor node metastasis (TNM) stage and lymphatic invasion. Three-year survival curve analysis showed CCNE1 with high expression had a poor prognosis. Silencing CCNE1 significantly reduced cell viability in 48 h, cultured and arrested cell cycle in G1 phase, moreover, Cyclin A, D1 and C-myc all revealed down-regulation in both MGC-803 and NCI-N87 cells. CCNE1 expression was significantly increased at low and moderate concentrations of Cisplatin. Down-regulation of CCNE1 expression would remarkably promote cell apoptosis induced by Cisplatin, and regulate the rate of Bax/Bcl-2. Down-regulation of CCNE1 expression could inhibit cell proliferation and enhance GC cells sensibility to Cisplatin, possibly involving the regulation of Bcl-2 family.
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10
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Weipixiao ameliorates gastric precancerous lesions in a rat's model by regulating GSK3β and C-myc. J TRADIT CHIN MED 2018. [DOI: 10.1016/s0254-6272(18)30909-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Fang D, Huang S, Su SB. Cyclin E1-CDK 2, a potential anticancer target. Aging (Albany NY) 2018; 8:571-2. [PMID: 27085092 PMCID: PMC4925813 DOI: 10.18632/aging.100946] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 04/14/2016] [Indexed: 11/25/2022]
Affiliation(s)
- Dongdong Fang
- Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shuang Huang
- Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shi-Bing Su
- Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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12
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Zhang Z, Shen M, Zhou G. Upregulation of CDCA5 promotes gastric cancer malignant progression via influencing cyclin E1. Biochem Biophys Res Commun 2018; 496:482-489. [PMID: 29326043 DOI: 10.1016/j.bbrc.2018.01.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 01/07/2018] [Indexed: 12/11/2022]
Abstract
The cell division cycle associated 5(CDCA5) was reported to be associated with progression of several human cancers, however, its clinical significance and biological role still remain unknown in gastric cancer(GC). By analyzing The Cancer Genome Atlas(TCGA), we found CDCA5 was significantly upregulated in GC tissues compared to adjacent normal tissues. Tissue microarray(TMA) indicated upregulation of CDCA5 was significantly correlated with more advanced clinicopathological features, and acts as an independent risk factor for worse overall survival(OS) in GC patients. Moreover, silence of CDCA5 suppresses proliferation of GC cells by inducing G1-phase arrest via downregulating Cyclin E1(CCNE1). Our results demonstrate upregulation of CDCA5 promotes GC malignant progression, which may offer a potential prognostic and therapeutic strategy.
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Affiliation(s)
- Zhengyuan Zhang
- Department of Gastrointestinal Surgery, Huai'an First People's Hospital, Affiliated to Nanjing Medical University, Huai'an City, Jiangsu Province, PR China
| | - Mingyang Shen
- Department of Vascular Surgery, Huai'an First People's Hospital, Affiliated to Nanjing Medical University, Huai'an City, Jiangsu Province, PR China
| | - Guangrong Zhou
- Department of Gastrointestinal Surgery, Huai'an First People's Hospital, Affiliated to Nanjing Medical University, Huai'an City, Jiangsu Province, PR China.
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13
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Petrelli F, Ghidini M, Barni S, Steccanella F, Sgroi G, Passalacqua R, Tomasello G. Prognostic Role of Primary Tumor Location in Non-Metastatic Gastric Cancer: A Systematic Review and Meta-Analysis of 50 Studies. Ann Surg Oncol 2017; 24:2655-2668. [DOI: 10.1245/s10434-017-5832-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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14
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Petrelli F, Berenato R, Turati L, Mennitto A, Steccanella F, Caporale M, Dallera P, de Braud F, Pezzica E, Di Bartolomeo M, Sgroi G, Mazzaferro V, Pietrantonio F, Barni S. Prognostic value of diffuse versus intestinal histotype in patients with gastric cancer: a systematic review and meta-analysis. J Gastrointest Oncol 2017; 8:148-163. [PMID: 28280619 DOI: 10.21037/jgo.2017.01.10] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There are two distinct types of gastric carcinoma (GC), intestinal, more frequently sporadic and linked to environmental factors, and diffuse (undifferentiated) that is highly metastatic and characterized by rapid disease progression and a poor prognosis. However, there are many conflicting data in the literature concerning the association between histology and prognosis in GC. This meta-analysis was performed to provide demonstration if histology according to Lauren classification is associated with different prognosis in patients with GC. METHODS We searched PubMed, the Cochrane Library, SCOPUS, Web of Science, CINAHL, and EMBASE for all eligible studies. The combined hazard ratios (HRs) and their corresponding 95% confidence intervals (CIs) in terms of overall survival (OS) were evaluated. RESULTS A total of 73 published studies including 61,468 patients with GC were included in this meta-analysis. Our analysis indicates that GC patients with diffuse-type histology have a worst prognosis than those with intestinal subgroup in all studies (HR 1.23; 95% CI, 1.17-1.29; P<0.0001), in both loco-regional confined (HR 1.21; 95% CI, 1.12-1.30; P<0.0001) and advanced disease (HR 1.25; 95% CI, 1.046-1.50; P=0.014), in Asiatic (HR 1.2; 95% CI, 1.14-1.27; P<0.0001) and Western patients (HR 1.3; 95% CI, 1.19-1.41; P<0.0001), and in those not exposed (HR 1.15; 95% CI, 1.07-1.24; P<0.0001) or exposed (HR 1.27; 95% CI, 1.17-1.37; P<0.0001) to (neo)adjuvant therapy. CONCLUSIONS Our results indicated that histology might be a useful prognostic marker for both early and advanced GC patients, with intestinal-type associated with a better outcome. This information could be used for stratification purpose in future clinical trials.
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Affiliation(s)
- Fausto Petrelli
- Medical Oncology Unit, Oncology Department, ASST Bergamo Ovest, Treviglio (BG), Italy
| | - Rosa Berenato
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Luca Turati
- Surgical Oncology Unit, Surgery Department, ASST Bergamo Ovest, Treviglio (BG), Italy
| | - Alessia Mennitto
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Francesca Steccanella
- Surgical Oncology Unit, Surgery Department, ASST Bergamo Ovest, Treviglio (BG), Italy
| | - Marta Caporale
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Pierpaolo Dallera
- Surgical Oncology Unit, Surgery Department, ASST Bergamo Ovest, Treviglio (BG), Italy
| | - Filippo de Braud
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Ezio Pezzica
- Pathology Unit, Oncology Department, ASST Bergamo Ovest, Treviglio (BG), Italy
| | - Maria Di Bartolomeo
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giovanni Sgroi
- Surgical Oncology Unit, Surgery Department, ASST Bergamo Ovest, Treviglio (BG), Italy
| | - Vincenzo Mazzaferro
- Hepatobiliopancreatic Surgery Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Filippo Pietrantonio
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Sandro Barni
- Medical Oncology Unit, Oncology Department, ASST Bergamo Ovest, Treviglio (BG), Italy
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15
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Yang L, Zhu J, Huang H, Yang Q, Cai J, Wang Q, Zhu J, Shao M, Xiao J, Cao J, Gu X, Zhang S, Wang Y. PFTK1 Promotes Gastric Cancer Progression by Regulating Proliferation, Migration and Invasion. PLoS One 2015; 10:e0140451. [PMID: 26488471 PMCID: PMC4619205 DOI: 10.1371/journal.pone.0140451] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 09/25/2015] [Indexed: 11/18/2022] Open
Abstract
PFTK1, also known as PFTAIRE1, CDK14, is a novel member of Cdc2-related serine/threonine protein kinases. Recent studies show that PFTK1 is highly expressed in several malignant tumors such as hepatocellular carcinoma, esophageal cancer, breast cancer, and involved in regulation of cell cycle, tumors proliferation, migration, and invasion that further influence the prognosis of tumors. However, the expression and physiological significance of PFTK1 in gastric cancer remain unclear. In this study, we analyzed the expression and clinical significance of PFTK1 by Western blot in 8 paired fresh gastric cancer tissues, nontumorous gastric mucosal tissues and immunohistochemistry on 161 paraffinembedded slices. High PFTK1 expression was correlated with the tumor grade, lymph node invasion as well as Ki-67. Through Cell Counting Kit (CCK)-8 assay, flow cytometry, colony formation, wound healing and transwell assays, the vitro studies demonstrated that PFTK1 overexpression promoted proliferation, migration and invasion of gastric cancer cells, while PFTK1 knockdown led to the opposite results. Our findings for the first time supported that PFTK1 might play an important role in the regulation of gastric cancer proliferation, migration and would provide a novel promising therapeutic strategy against human gastric cancer.
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Affiliation(s)
- Lei Yang
- Department of Oncology, Nantong Tumor Hospital, Nantong, Jiangsu, China
| | - Jia Zhu
- Department of Oncology, Nantong Tumor Hospital, Nantong, Jiangsu, China
| | - Hua Huang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Qichang Yang
- Department of Pathology, Nantong first people's hospital, Nantong, Jiangsu, China
| | - Jing Cai
- Department of Oncology, Nantong Tumor Hospital, Nantong, Jiangsu, China
| | - Qiuhong Wang
- Department of Oncology, Nantong Tumor Hospital, Nantong, Jiangsu, China
| | - Junya Zhu
- Department of Pathogen Biology, Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong 226001, Jiangsu, China
| | - Mengting Shao
- Department of Pathogen Biology, Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong 226001, Jiangsu, China
| | - Jinzhang Xiao
- Department of Oncology, Nantong Tumor Hospital, Nantong, Jiangsu, China
| | - Jie Cao
- Department of Pathology, Nantong first people's hospital, Nantong, Jiangsu, China
| | - Xiaodan Gu
- Department of Pathogen Biology, Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong 226001, Jiangsu, China
| | - Shusen Zhang
- Department of Pathogen Biology, Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong 226001, Jiangsu, China
| | - Yingying Wang
- Department of Pathogen Biology, Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong 226001, Jiangsu, China
- * E-mail:
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16
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Yildirim M, Kaya V, Demirpence O, Gunduz S, Bozcuk H. Prognostic significance of p53 in gastric cancer: a meta- analysis. Asian Pac J Cancer Prev 2015; 16:327-32. [PMID: 25640374 DOI: 10.7314/apjcp.2015.16.1.327] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Gastric cancer is one of the frequently seen cancers in the world and it is the second most common reason for death due to cancer. The prognostic role of expression of p53 detected by immunohistochemistry in gastric cancer remains controversial. This meta-analysis aimed to explore any association between overexpression and survival outcomes. MATERIALS AND METHODS We systematically searched for studies investigating the relationships between expression of p53 detected by immunohistochemistry and prognosis of gastric cancer patients. Study quality was assessed using the Newcastle-Ottawa Scale. After careful review, survival data were extracted from eligible studies. A meta-analysis was performed to generate combined hazard ratios for overall survival and disease-free survival. RESULTS A total of 4.330 patients from 21 studies were included in the analysis. Our results showed tissue p53 overexpression in patients with gastric cancer to be associated with poor prognosis in terms of overall survival (HR, 1.610; 95% CI, 1.394 -5.235; p: <0.001). Pooled hazard ratio for disease free survival showed that p53 positivity or negativity were not statitistically significant (HR, 1.219; 95%CI, 0.782-1.899; p:0.382). CONCLUSIONS The present meta-analysis indicated overexpression of p53 detected by immunohistochemistry to be associated with a poor prognosis in patients with gastric cancer.
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Affiliation(s)
- Mustafa Yildirim
- Department of Medical Oncology, Ministry of Health Batman Regional Government Hospital, Batman, Turkey E-mail :
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17
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Alsina M, Landolfi S, Aura C, Caci K, Jimenez J, Prudkin L, Castro S, Moreno D, Navalpotro B, Tabernero J, Scaltriti M. Cyclin E amplification/overexpression is associated with poor prognosis in gastric cancer. Ann Oncol 2015; 26:438-9. [DOI: 10.1093/annonc/mdu535] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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18
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Huang L, Ren F, Tang R, Feng Z, Chen G. Prognostic Value of Expression of Cyclin E in Gastrointestinal Cancer: A Systematic Review and Meta-Analysis. Technol Cancer Res Treat 2015; 15:12-9. [PMID: 25627202 DOI: 10.1177/1533034614568098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 12/21/2014] [Indexed: 01/08/2023] Open
Abstract
Cyclin E is a critical regulator in cell cycle and promotes the initiation of DNA replication and centrosome duplication in late G1. The overexpression of cyclin E is common in cancers of the digestive system. However, whether cyclin E represents a prognostic biomarker in gastrointestinal cancer remains controversial. We reviewed the published literatures to clarify the association between cyclin E determined by immunohistochemistry (IHC) and survival in gastrointestinal cancer. Literatures were searched in PubMed and Cochrane Library published up to December 1, 2014. A total of 282 articles were initially identified, and 14 articles were included in this study. Meta-analysis was performed for 10 studies with a total of 1300 patients. Combined hazard risk (HR) and corresponding 95% confidence interval (CI) were calculated by random-effect model due to the heterogeneity. The quality of included studies was assessed by the Newcastle-Ottawa Scale and the Methodological Index for Non-Randomized Studies (MINORS). We found that high level of cyclin E was a predicator of poor prognosis among patients with gastrointestinal cancer (HR = 1.67, 95% CI = 1.06-2.63, P = .028). In summary, overexpression of cyclin E is associated with poor prognosis in gastrointestinal cancer and expression of cyclin E determined by IHC might be a prognostic marker for gastrointestinal cancer in clinical practice.
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Affiliation(s)
- Lanshan Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Fanghui Ren
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ruixue Tang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhenbo Feng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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19
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The prognostic significance of p53 expression in gastric cancer: a meta-analysis. J Cancer Res Clin Oncol 2014; 141:735-48. [DOI: 10.1007/s00432-014-1844-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 09/26/2014] [Indexed: 12/15/2022]
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20
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Cho M, Eze O, Xu R. Molecular genetics of gastric adenocarcinoma in clinical practice. World J Med Genet 2014; 4:58-68. [DOI: 10.5496/wjmg.v4.i3.58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 05/16/2014] [Indexed: 02/06/2023] Open
Abstract
The molecular genetics of gastric carcinoma (GC) dictates their biology and clinical behavior. The two morphologically distinct types of gastric carcinoma by Lauren classification, i.e., intestinal and diffuse cell types, have a significant difference in clinical outcome. These two types of GC have different molecular pathogenetic pathways with unique genetic alterations. In addition to environmental and other etiologies, intestinal type GC is associated with Helicobacter pylori (H. pylori) infection and involves a multistep molecular pathway driving the normal epithelium to intestinal metaplasia, dysplasia, and malignant transformation by chromosomal and/or microsatellite instability (MSI), mutation of tumor suppressor genes, and loss of heterozygosity among others. Diffuse type shows no clear causal relationship with H. pylori infection, but is commonly associated with deficiency of cell-cell adhesion due to mutation of the E-cadherin gene (CDH1), and a manifestation of the hereditary gastric cancer syndrome. Thus, detection of CDH1 mutation or loss of expression of E-cadherin may aid in early diagnosis or screening of diffuse type GC. Detection of certain genetic markers, for example, MSI and matrix metalloproteinases, may provide prognostic information, particularly for intestinal type. The common genetic alterations may offer therapeutic targets for treatment of GC. Polymorphisms in Thymidylate synthase to metabolize 5-fluorouracil, glutathione S-transferase for degradation of Cisplatin, and amplification/overexpression of human epidermal growth factor receptor 2 targeted by monoclonal antibody Trastuzumab, are a few examples. P13K/Akt/mTOR pathway, c-Met pathways, epidermal growth factor receptor, insulin-like growth factor receptor, vascular endothelial growth factor receptor fibroblast growth factor receptor, and micro RNAs are several potential therapeutic biomarkers for GC under investigation.
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21
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Yang M, Wang X, Zhao Q, Liu T, Yao G, Chen W, Li Z, Huang X, Zhang Y. Combined evaluation of the expression of NUCKS and Ki-67 proteins as independent prognostic factors for patients with gastric adenocarcinoma. Tumour Biol 2014; 35:7505-12. [DOI: 10.1007/s13277-014-1880-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 03/21/2014] [Indexed: 10/25/2022] Open
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22
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He WL, Li YH, Yang DJ, Song W, Chen XL, Liu FK, Wang Z, Li W, Chen W, Chen CY, He YL, Zhan WH. Combined evaluation of centromere protein H and Ki-67 as prognostic biomarker for patients with gastric carcinoma. Eur J Surg Oncol 2012; 39:141-9. [PMID: 22999412 DOI: 10.1016/j.ejso.2012.08.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/16/2012] [Accepted: 08/23/2012] [Indexed: 12/19/2022] Open
Abstract
AIM Centromere protein H (CENP-H) is one of the essential components of the human active kinetochore which close links with carcinogenesis. Its expression and clinical value of prognostic prediction for gastric cancer (GC) is unclear. METHODS CENP-H and Ki-67 expressions in specimens from 166 patients with GC were determined by tissue microarrays and immunostaining. Their correlations between patients' clinicopathologic features and prognosis were explored. For mechanisms, quantitative CENP-H examination on gastric cancer tissue and cell lines was performed via real-time quantitative PCR and Western Blot. Its effect on Survivin expression and cell function was evaluated via CENP-H knocking down (SiRNA) or overexpression. RESULTS Highly expression of CENP-H was found in 85 of 166 GC, showing a significant correlation with tumour size, depth of infiltration, lymph node metastasis, distant metastasis and UICC staging of gastric carcinoma (P < 0.05), as well as clinical prognosis (coefficient = 0.550, P < 0.001). Multivariate analysis revealed that combined CENP-H and Ki67 expression was a more valuable independent prognostic predictor for patients' survival (hazard ratio, 2.18; P = 0.0109). Furthermore, total mRNA and protein expression of CENP-H in GC tissue and cell lines were noticeably increased. Survivin expression and cell function including growth, proliferation and clonogenic ability could be inhibited by CENP-H siRNA or enhanced by overexpressing CENP-H. CONCLUSION High expression of CENP-H in GC indicates poor prognosis and Survivin may mediate its procancer role. Combined evaluation of CENP-H and Ki-67 aids in predicting the clinical prognosis.
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Affiliation(s)
- W L He
- Department of Gastrointestinal and Pancreatic Surgery and Centre of Gastric Cancer, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
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23
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Nagini S. Carcinoma of the stomach: A review of epidemiology, pathogenesis, molecular genetics and chemoprevention. World J Gastrointest Oncol 2012; 4:156-69. [PMID: 22844547 PMCID: PMC3406280 DOI: 10.4251/wjgo.v4.i7.156] [Citation(s) in RCA: 311] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 06/04/2012] [Accepted: 06/12/2012] [Indexed: 02/05/2023] Open
Abstract
Carcinoma of the stomach is still the second most common cause of cancer death worldwide, although the incidence and mortality have fallen dramatically over the last 50 years in many regions. The incidence of gastric cancer varies in different parts of the world and among various ethnic groups. Despite advances in diagnosis and treatment, the 5-year survival rate of stomach cancer is only 20 per cent. Stomach cancer can be classified into intestinal and diffuse types based on epidemiological and clinicopathological features. The etiology of gastric cancer is multifactorial and includes both dietary and nondietary factors. The major diet-related risk factors implicated in stomach cancer development include high content of nitrates and high salt intake. Accumulating evidence has implicated the role of Helicobacter pylori (H. pylori) infection in the pathogenesis of gastric cancer. The development of gastric cancer is a complex, multistep process involving multiple genetic and epigenetic alterations of oncogenes, tumor suppressor genes, DNA repair genes, cell cycle regulators, and signaling molecules. A plausible program for gastric cancer prevention involves intake of a balanced diet containing fruits and vegetables, improved sanitation and hygiene, screening and treatment of H. pylori infection, and follow-up of precancerous lesions. The fact that diet plays an important role in the etiology of gastric cancer offers scope for nutritional chemoprevention. Animal models have been extensively used to analyze the stepwise evolution of gastric carcinogenesis and to test dietary chemopreventive agents. Development of multitargeted preventive and therapeutic strategies for gastric cancer is a major challenge for the future.
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Affiliation(s)
- Siddavaram Nagini
- Siddavaram Nagini, Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
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Abstract
Epithelial ovarian cancer (EOC) remains the most lethal gynecological malignancy despite several decades of progress in diagnosis and treatment. Taking advantage of the robust development of discovery and utility of prognostic biomarkers, clinicians and researchers are developing personalized and targeted treatment strategies. This review encompasses recently discovered biomarkers of ovarian cancer, the utility of published prognostic biomarkers for EOC (especially biomarkers related to angiogenesis and key signaling pathways), and their integration into clinical practice.
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Affiliation(s)
- Jie Huang
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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25
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Heeran MC, Høgdall CK, Kjaer SK, Christensen L, Blaakaer J, Christensen IJ, Hogdall EVS. Limited prognostic value of tissue protein expression levels of cyclin E in Danish ovarian cancer patients: from the Danish 'MALOVA' ovarian cancer study. APMIS 2012; 120:846-54. [PMID: 22958293 DOI: 10.1111/j.1600-0463.2012.02913.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 04/02/2012] [Indexed: 11/29/2022]
Abstract
The primary objective of this study was to assess the expression of cyclin E in tumour tissues from 661 patients with epithelial ovarian tumours. The second was to evaluate whether cyclin E tissue expression levels correlate with clinico-pathological parameters and prognosis of the disease. Using tissue arrays (TA), we analysed the cyclin E expression levels in tissues from 168 women with borderline ovarian tumours (BOT) (147 stage I, 4 stage II, 17 stage III) and 493 Ovarian cancer (OC) patients (127 stage I, 45 stage II, 276 stage III, 45 stage IV). Using a 10% cut-off level for cyclin E overexpression, 20% of the BOTs were positive with a higher proportion of serous than mucinous tumours. Sixty-two per cent of the OCs were positive for cyclin E expression with the highest percentage found in clear cell carcinomas. Results based on univariate and multivariate survival analyses with a 10% cut-off value showed that cyclin E had no independent prognostic value. In conclusion, we found cyclin E expression in tumour tissue to be of limited prognostic value to Danish OC patients.
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Affiliation(s)
- Mel C Heeran
- Department of Pathology, Herlev Hospital, University of Copenhagen, Denmark
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26
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Antiproliferative and Proapoptotic Effects of Labisia pumila Ethanol Extract and Its Active Fraction in Human Melanoma HM3KO Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:123470. [PMID: 22474490 PMCID: PMC3310196 DOI: 10.1155/2012/123470] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2011] [Revised: 12/20/2011] [Accepted: 12/21/2011] [Indexed: 01/11/2023]
Abstract
The present study was to determine the anticancer potential of Labisia pumila in in vitro models. Results from the study revealed that ethanol extract of L. pumila was more cytotoxic against HM3KO cells while having reduced effects on nonmalignant cells as compared to aqueous and hexane extracts. Thus, ethanol extract was selected to be further separated by using the bioassay-guided fractionation method to give an active fraction, SF2Lp. Results obtained from the flow cytometry analysis showed that SF2Lp was able to arrest the HM3KO cell cycle at the G1 phase, while morphological findings from AO-EB nuclear staining assays along with the Apoptotic Index confirmed the induction of apoptosis by SF2Lp in HM3KO cells. Results from the mechanistic study further revealed that SF2Lp treatment was able to concurrently increase the expression level of p53 and pro-apoptotic protein Bax and also reduce the expression level of anti-apoptotic protein BCl-2 in HM3KO cells, directly contributing to the increase in Bax/Bcl-2 ratio. These findings, therefore, suggested that L. pumila was able to inhibit HM3KO cell growth possibly by arresting the cell cycle at G1 phase and inducing apoptosis in HM3KO cells via the up- and down-regulation of Bax/Bcl-2 protein, mediated through a p53-dependent pathway.
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27
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Nagy TA, Wroblewski LE, Wang D, Piazuelo MB, Delgado A, Romero-Gallo J, Noto J, Israel DA, Ogden SR, Correa P, Cover TL, Peek RM. β-Catenin and p120 mediate PPARδ-dependent proliferation induced by Helicobacter pylori in human and rodent epithelia. Gastroenterology 2011; 141:553-64. [PMID: 21704622 PMCID: PMC3152603 DOI: 10.1053/j.gastro.2011.05.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 04/28/2011] [Accepted: 05/05/2011] [Indexed: 01/28/2023]
Abstract
BACKGROUND & AIMS Colonization of gastric mucosa by Helicobacter pylori leads to epithelial hyperproliferation, which increases the risk for gastric adenocarcinoma. One H pylori virulence locus associated with cancer risk, cag, encodes a secretion system that transports effectors into host cells and leads to aberrant activation of β-catenin and p120-catenin (p120). Peroxisome proliferator-activated receptor (PPAR)δ is a ligand-activated transcription factor that affects oncogenesis in conjunction with β-catenin. We used a carcinogenic H pylori strain to define the role of microbial virulence constituents and PPARδ in regulating epithelial responses that mediate development of adenocarcinoma. METHODS Gastric epithelial cells or colonies were co-cultured with the H pylori cag(+) strain 7.13 or cagE(-), cagA(-), soluble lytic transglycosylase(-), or cagA(-)/soluble lytic transglycosylase(-) mutants. Levels of PPARδ and cyclin E1 were determined by real-time, reverse-transcription polymerase chain reaction, immunoblot analysis, or immunofluorescence microscopy; proliferation was measured in 3-dimensional culture. PPARδ and Ki67 expression were determined by immunohistochemical analysis of human biopsies and rodent gastric mucosa. RESULTS H pylori induced β-catenin- and p120-dependent expression and activation of PPARδ in gastric epithelial cells, which were mediated by the cag secretion system substrates CagA and peptidoglycan. H pylori stimulated proliferation in vitro, which required PPARδ-mediated activation of cyclin E1; H pylori did not induce expression of cyclin E1 in a genetic model of PPARδ deficiency. PPARδ expression and proliferation in rodent and human gastric tissue was selectively induced by cag(+) strains and PPARδ levels normalized after eradication of H pylori. CONCLUSIONS The H pylori cag secretion system activates β-catenin, p120, and PPARδ, which promote gastric epithelial cell proliferation via activation of cyclin E1. PPARδ might contribute to gastric adenocarcinoma development in humans.
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Affiliation(s)
- Toni A. Nagy
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Lydia E. Wroblewski
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Dingzhi Wang
- Department of Cancer Biology, MD Anderson Cancer Center, University of Texas, Houston, TX, USA 77030
| | - M. Blanca Piazuelo
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Alberto Delgado
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Judith Romero-Gallo
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Jennifer Noto
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Dawn A. Israel
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Seth R. Ogden
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Pelayo Correa
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232
| | - Timothy L. Cover
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University, Nashville, TN 37232, Department of Veterans Affairs Medical Center, Nashville, Tennessee, USA 37212
| | - Richard M. Peek
- Division of Gastroenterology, Departments of Medicine and Cancer Biology, Vanderbilt University, Nashville, TN, USA 37232, Department of Veterans Affairs Medical Center, Nashville, Tennessee, USA 37212
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DDX3 regulates cell growth through translational control of cyclin E1. Mol Cell Biol 2010; 30:5444-53. [PMID: 20837705 DOI: 10.1128/mcb.00560-10] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
DDX3 belongs to the DEAD box family of RNA helicases, but the details of its biological function remain largely unclear. Here we show that knockdown of DDX3 expression impedes G(1)/S-phase transition of the cell cycle. To know how DDX3 may act in cell cycle control, we screened for cellular mRNA targets of DDX3. Many of the identified DDX3 targets encoded cell cycle regulators, including G(1)/S-specific cyclin E1. DDX3 depletion specifically downregulates translation of cyclin E1 mRNA. Moreover, our data suggest that DDX3 participates in translation initiation of targeted mRNAs as well as in cell growth control via its RNA helicase activity. Consistent with these findings, we show that in the temperature-sensitive DDX3 mutant hamster cell line tsET24, cyclin E1 expression is downregulated at a nonpermissive temperature that inactivates mutant DDX3. Taken together, our results indicate that DDX3 is critical for translation of cyclin E1 mRNA, which provides an alternative mechanism for regulating cyclin E1 expression during the cell cycle.
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Sugai T, Tsukahara M, Endoh M, Shioi Y, Takebe N, Mue Y, Matsushita H, Toyota M, Suzuki K. Analysis of cell cycle-related proteins in gastric intramucosal differentiated-type cancers based on mucin phenotypes: a novel hypothesis of early gastric carcinogenesis based on mucin phenotype. BMC Gastroenterol 2010; 10:55. [PMID: 20525401 PMCID: PMC2903504 DOI: 10.1186/1471-230x-10-55] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 06/07/2010] [Indexed: 12/15/2022] Open
Abstract
Background Abnormalities of cell cycle regulators are common features in human cancers, and several of these factors are associated with the early development of gastric cancers. However, recent studies have shown that gastric cancer tumorigenesis was characterized by mucin expression. Thus, expression patterns of cell cycle-related proteins were investigated in the early phase of differentiated-type gastric cancers to ascertain any mechanistic relationships with mucin phenotypes. Methods Immunostaining for Cyclins D1, A, E, and p21, p27, p53 and β-catenin was used to examine impairments of the cell cycle in 190 gastric intramucosal differentiated-type cancers. Mucin phenotypes were determined by the expressions of MUC5AC, MUC6, MUC2 and CD10. A Ki-67 positive rate (PR) was also examined. Results Overexpressions of p53, cyclin D1 and cyclin A were significantly more frequent in a gastric phenotype than an intestinal phenotype. Cyclin A was overexpressed in a mixed phenotype compared with an intestinal phenotype, while p27 overexpression was more frequent in an intestinal phenotype than in a mixed phenotype. Reduction of p21 was a common feature of the gastric intramucosal differentiated-type cancers examined. Conclusions Our results suggest that the levels of some cell cycle regulators appear to be associated with mucin phenotypes of early gastric differentiated-type cancers.
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Affiliation(s)
- Tamotsu Sugai
- Division of Diagnostic Molecular Pathology, Department of Pathology, School of Medicine, Iwate Medical University, 19-1 Morioka City 020-8505, Japan.
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Expression Levels of Cyclin G2, But Not Cyclin E, Correlate With Gastric Cancer Progression. J Surg Res 2009; 157:168-74. [DOI: 10.1016/j.jss.2008.06.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Revised: 06/06/2008] [Accepted: 06/13/2008] [Indexed: 11/18/2022]
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Kouraklis G, Katsoulis IE, Theocharis S, Tsourouflis G, Xipolitas N, Glinavou A, Sioka C, Kostakis A. Does the expression of cyclin E, pRb, and p21 correlate with prognosis in gastric adenocarcinoma? Dig Dis Sci 2009; 54:1015-20. [PMID: 19058005 DOI: 10.1007/s10620-008-0464-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Accepted: 07/16/2008] [Indexed: 12/16/2022]
Abstract
BACKGROUND Cyclin E is a protein that plays a key role in the G1 --> S transition of the normal cell cycle. The product of retinoblastoma gene (pRb) is the master regulator of entry into the cell cycle and p21 protein is a cyclin-dependent kinase inhibitor that disturbs the progression through the cell cycle. The expression of these proteins, among many others, is being deregulated in tumorogenesis. The aim of this study was to investigate whether cyclin E, pRb, and p21 can be used as prognostic indicators in gastric cancer. MATERIAL AND METHODS Fifty-six patients with gastric adenocarcinoma, who underwent curative resection, constituted the group of our study. The immunohistochemical expression of cyclin E, pRb, and p21 proteins was examined and correlated with clinical-pathological parameters and survival. RESULTS Positive cyclin E immunostaining was observed in 23 tumors (41.1%). It was associated with intestinal Lauren classification (P=0.003), nodal infiltration (P=0.0025), size of the tumor >5 cm (P=0.032), and lymphatic (P=0.042) and vascular invasion (P= 0.0029). Nevertheless, the survival of patients with positive cyclin E tumors was not significantly shorter than that of negative patients. Positive pRb immunostaining was found in 24 (42.9%) cases and it was associated with the absence of Helicobacter pylori (P=0.044), whereas positive p21 immunostaining was found in 21 tumors (37.5%) and it was associated with less depth of gastric wall infiltration (P=0.001), the absence of lymphatic (P=0.019) and vascular infiltration (P=0.024), and the absence of liver metastasis (P=0.044). Cyclin E expression was associated with pRb expression (P=0.023), but was correlated inversely with p21 expression (P=0.009). The survival of patients with pRb-positive tumors and the survival of patients with p21-positive tumors were significantly longer than that of negative patients (P= 0.0044 and P<0.001, respectively). CONCLUSION The expression of cyclin E could not predict the survival in this series of patients with gastric cancer, whereas the expression of pRb and p21 was associated with a favorable prognosis.
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Affiliation(s)
- Gregory Kouraklis
- 2nd Department of Propedeutic Surgery, Medical School University of Athens, Athens, Greece.
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Overexpression of cyclin E messenger ribonucleic acid in nasopharyngeal carcinoma correlates with poor prognosis. The Journal of Laryngology & Otology 2009; 123:1021-6. [PMID: 19275777 DOI: 10.1017/s0022215109004848] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractAims:S-phase kinase-associated protein 2 is required for the degradation of p27 protein, which is a negative regulator of cyclin E/cyclin-dependent kinase 2 complex. The present study examined the expression of cyclin E, S-phase kinase-associated protein 2 and p27 protein in nasopharyngeal carcinoma.Methods:Tissue from 35 cases of nasopharyngeal carcinoma and 10 normal nasopharyngeal tissue samples underwent reverse polymerase chain reaction to detect messenger ribonucleic acid. Immunohistochemical analysis was performed on 29 nasopharyngeal tissue samples in order to detect protein expression.Results:Messenger ribonucleic acid expression in the nasopharyngeal carcinoma tissue samples analysed indicated a 1.75-fold change in the amount of S-phase kinase-associated protein 2, a 0.34-fold change in the amount of cyclin E and a 0.31-fold change in the amount of p27 protein, compared with positive controls. High levels of cyclin E significantly correlated with late-stage nasopharyngeal carcinoma (p = 0.009) and a poor overall survival (p = 0.010). Immunohistochemical analysis indicated positive expression of S-phase kinase-associated protein 2 in 16/29 nasopharyngeal tissue samples (55 per cent), of cyclin E in 13/29 samples (45 per cent) and of p27 protein in 17/29 (59 per cent) samples.Conclusions:Overexpression of cyclin E messenger ribonucleic acid showed an adverse prognostic significance, correlating with an advanced stage of nasopharyngeal carcinoma and a low overall survival rate.
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33
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Cyclin E deregulation is an early event in the development of breast cancer. Breast Cancer Res Treat 2008; 115:651-9. [PMID: 19107593 DOI: 10.1007/s10549-008-0266-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Accepted: 12/04/2008] [Indexed: 12/21/2022]
Abstract
Cyclin E has been shown to be overexpressed in some human breast cancers, however, data to support deregulation of cyclin E as an early event in human mammary tumor development is lacking. We analyzed surgical specimens from 183 patients with breast carcinomas and evaluated cyclin E expression in areas of invasive carcinoma, adjacent carcinoma in situ (CIS), and non-neoplastic breast parenchyma. Overexpression of cyclin E was seen in one-third of invasive carcinoma samples, one-third of the CIS component and nearly half of the non-neoplastic breast epithelial cells adjacent to carcinoma (44% vs. 33%, P < or = 0.05). Nuclear labeling for cyclin E was highly concordant between areas of in invasive carcinoma, CIS and non-neoplastic breast epithelial cells from the same patient (P < 0.0001). Localization of cyclin E to the cytoplasm was seen in a small proportion of tumor samples. Our findings suggest that cyclin E deregulation is an early event in the progression from histologically benign mammary epithelial cells to invasive carcinoma and occurs through both overexpression and altered cellular localization.
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Cinti C, Vindigni C, Zamparelli A, La Sala D, Epistolato MC, Marrelli D, Cevenini G, Tosi P. Activated Akt as an indicator of prognosis in gastric cancer. Virchows Arch 2008; 453:449-55. [PMID: 18841391 DOI: 10.1007/s00428-008-0676-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2008] [Revised: 09/10/2008] [Accepted: 09/11/2008] [Indexed: 12/17/2022]
Abstract
The immunohistochemical expression of phosphorylated (activated) Akt (pAkt) in 50 advanced gastric carcinomas has been analyzed and the results correlated with age, sex, location in the stomach, histotype, stage, survival, mitotic and apoptotic index, some cell cycle regulators (cyclin D1, cyclin E, p34/cdc2, p27/kip1), and cell proliferation. There was a statistically significant direct correlation between pAkt expression (both cytoplasmatic and nuclear) and depth of infiltration of the tumor, number of infiltrated lymph nodes and p34/cdc2 expression, and between prevalently nuclear pAkt and cyclin D1 and cyclin E. Conversely, there was a significant inverse correlation between nuclear pAkt and apoptotic index and between cytoplasmatic and nuclear pAkt and patient survival. No correlation was found between pAkt and sex, age, tumor location, histotype, mitotic index, and cell proliferation. These findings suggest that pAkt may be considered an indicator of tumor progression and patient survival in gastric cancer.
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Affiliation(s)
- Caterina Cinti
- Institute of Clinical Physiology, Consiglio Nazionale delle Ricerche, Siena Unit, Siena, Italy
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35
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Recent advances in conventional and molecular prognostic factors for gastric carcinoma. Surg Oncol Clin N Am 2008; 17:467-83, vii. [PMID: 18486878 DOI: 10.1016/j.soc.2008.02.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite radical surgery, the prognosis of patients who have gastric carcinoma remains unsatisfactory because of the intrinsic but unpredictable aggressiveness of this malignancy. During the past decade an ever-growing list of molecular prognostic factors has been proposed based on the discovery of the mechanisms underlying gastric cancer aggressiveness. Studies performed in larger and more homogeneous series of patients and adequate statistical analysis are warranted before any of the candidate biomarkers can be implemented in the routine clinical setting for the identification of patients at higher risk and thus for the selection of candidates for adjuvant or more aggressive therapies.
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36
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Bedrosian I, Lee C, Tucker SL, Palla SL, Lu K, Keyomarsi K. Cyclin E-associated kinase activity predicts response to platinum-based chemotherapy. Clin Cancer Res 2007; 13:4800-6. [PMID: 17699858 DOI: 10.1158/1078-0432.ccr-07-0142] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE The role of cyclin E as a predictive marker of response to chemotherapy remains unknown. We have previously shown that deregulation of cyclin E in an ovarian tumor cell line model enhances cyclin E-associated kinase activity and sensitizes tumor cells to cisplatinum. We hypothesized that cyclin E deregulation would predict for responsiveness to platinum-based regimens in ovarian cancer patients. EXPERIMENTAL DESIGN Patients who met the following criteria were retrospectively identified from the institutional tumor bank records: (a) high-grade ovarian epithelial malignancy, (b) stage III/stage IV disease, (c) optimally debulked, (d) completed platinum-based therapy. Tumor samples were analyzed for cyclin E, p21, and p27 by Western blot analysis and assessed for cyclin E-associated kinase activity. RESULTS Seventy-five patients, who met the study criteria, were identified. Cyclin E protein levels did not correlate with cyclin E-cdk2 kinase activity (Spearman's rho, 0.07; P = 0.58). Cyclin E-associated kinase activity was the only significant predictive marker for response to platinum-based therapy, with higher response rates seen in patients with higher levels of activity (P = 0.045). Cyclin E protein levels did not predict for platinum sensitivity (P = 0.20). In contrast, cyclin E protein levels, but not cyclin E-associated kinase activity, was a significant predictor for freedom from recurrence (P = 0.01 and P = 0.25, respectively). CONCLUSIONS Cyclin E overexpression and cyclin E-associated kinase activity have distinct roles in predicting for response to chemotherapy and outcome in ovarian cancer patients. These results suggest a compartmentalization of cyclin E functions in the oncogenic process.
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Affiliation(s)
- Isabelle Bedrosian
- Department of Surgical Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030, USA
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37
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Vogiatzi P, Vindigni C, Roviello F, Renieri A, Giordano A. Deciphering the underlying genetic and epigenetic events leading to gastric carcinogenesis. J Cell Physiol 2007; 211:287-95. [PMID: 17238139 DOI: 10.1002/jcp.20982] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Gastric cancer is a common aggressive malignancy. Although its incidence shows considerable variation among different countries, gastric cancer is still a major health problem worldwide. The causes of stomach cancer are not completely understood. What is clear is that gastric cancer is a multi-stage process involving genetic and epigenetic factors. This review is an in-depth study of the known genetic and epigenetic processes in the development of this tumor, and delineates possible approaches in gene and epigenetic therapy.
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Affiliation(s)
- Paraskevi Vogiatzi
- Department of Molecular Biology, Medical Genetics, University of Siena, Siena, Italy
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38
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Mrena J, Wiksten JP, Kokkola A, Nordling S, Haglund C, Ristimäki A. Prognostic significance of cyclin A in gastric cancer. Int J Cancer 2006; 119:1897-901. [PMID: 16708383 DOI: 10.1002/ijc.21944] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
High level of cyclin A promotes carcinogenesis, and overexpression of cyclin A has been associated with poor prognosis of cancer patients. We validated the prognostic role of cyclin A in gastric cancer and evaluated its correlation with expression of an mRNA stability factor HuR. From 342 consecutive histologically confirmed gastric cancer patients were obtained 325 representative tissue specimens for cyclin A and 316 for HuR immunohistochemistry. Specimens were stained by cyclin A and HuR specific monoclonal antibodies. Nuclear immunostaining detected in > or =5% of the tumor cells was considered the cut-off for cyclin A positivity. Positive HuR immunoreactivity was scored as nuclear or cytoplasmic. Associations between scores, clinicopathological factors and survival were calculated by the chi2-test, Fisher's exact test, Kaplan-Meier test and Cox model. Cyclin A detected in the nuclei of cancer cells was positive in 55% (179 of 325) of the specimens; 40% (127 of 316) of the specimens had cytoplasmic and 88% (279 of 316) nuclear immunoreactivity of HuR. Cyclin A expression was an independent prognostic factor for poor survival. Cyclin A immunoreactivity was associated with old age, high stage, proximal location of the tumor, intestinal type, noncurative resection, advanced penetration depth and with nodal metastases but not distant metastases. Furthermore, cyclin A expression was associated with cytoplasmic HuR expression, whereas no association with nuclear HuR was evident. Cyclin A is an independent prognostic factor in gastric cancer, and one mechanism for its overexpression may depend on cytoplasmic localization of HuR.
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Affiliation(s)
- Johanna Mrena
- Department of Surgery, Helsinki University Central Hospital, Helsinki, Finland
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Lee JW, Soung YH, Kim HJ, Park WS, Nam SW, Kim SH, Lee JY, Yoo NJ, Lee SH. Mutational analysis of the hCDC4 gene in gastric carcinomas. Eur J Cancer 2006; 42:2369-73. [PMID: 16824748 DOI: 10.1016/j.ejca.2005.10.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2005] [Revised: 10/14/2005] [Accepted: 10/24/2005] [Indexed: 11/26/2022]
Abstract
hCDC4, a ubiquitin ligase, plays a role in the control of cell cycle and chromosome stability. The hCDC4 gene is considered a tumour suppressor gene and is mutated in several human neoplasias, including colorectal and endometrial tumours. Data on the hCDC4 mutation in gastric cancer is, however, lacking. This study explored the possibility that hCDC4 mutation is involved in the development of gastric cancer. The hCDC4 gene in 162 gastric adenocarcinoma tissues was analysed for somatic mutations using a polymerase chain reaction-single strand conformation polymorphism assay. Overall, six hCDC4 mutations were found (3.7%), comprising four missense, one frameshift deletion and one nonsense mutation(s). It is notable that the hCDC4 mutations were found in early as well as in advanced gastric carcinomas. These data indicate that hCDC4 mutation occasionally occurs in gastric carcinomas and suggest that it might play a role in the development of some gastric carcinomas.
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Affiliation(s)
- J W Lee
- Department of Pathology, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Socho-gu, Seoul 137-701, Republic of Korea
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