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Gu Y, Sun M, Fang H, Shao F, Lin C, Liu H, Li H, He H, Li R, Wang J, Zhang H, Xu J. Impact of clonal TP53 mutations with loss of heterozygosity on adjuvant chemotherapy and immunotherapy in gastric cancer. Br J Cancer 2024:10.1038/s41416-024-02825-1. [PMID: 39217196 DOI: 10.1038/s41416-024-02825-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 08/08/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND This study aimed to reveal the effect of TP53 status on clinical outcomes and underlying mechanism in gastric cancer (GC) patients. METHODS TP53 status was divided into three groups according to genome sequencing, namely clonal mutations with LOH (C-LOH), clonal diploid or subclonal mutations (CD-SC), and wild type (WT). The p53 protein activity was divided into over-expression (OE), Null and WT according to immunohistochemical staining. Four cohorts, including the TCGA, SMC, ZSHS and FUSCC cohort, were analyzed for association between TP53 mutation status and clinical outcomes and the underlying mechanism. RESULTS In TCGA cohort, TP53 CD-SC were associated with superior overall survival compared to TP53 C-LOH cases. GC patients could benefit from ACT only in TP53 CD-SC/ p53 OE and TP53/ p53 WT subgroups, and TP53 C-LOH subgroup demonstrated the worst response to pembrolizumab among three subgroups. Genomic and immunophenotypic deconvolution revealed that TP53 C-LOH, CD-SC and WT differed for genomic and immune-related features. CONCLUSIONS TP53 C-LOH GCs with genomic instability and immune evasion phenotype have poor clinical outcomes in patients treated with ACT or immunotherapy.
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Affiliation(s)
- Yun Gu
- Department of General Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Mengyao Sun
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Hanji Fang
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
- Department of Gastrointestinal Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fei Shao
- Department of Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Lin
- Department of Emergency Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hao Liu
- Department of Gastrointestinal Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - He Li
- Department of Gastrointestinal Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hongyong He
- Department of Emergency Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ruochen Li
- Department of Emergency Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jieti Wang
- Department of Endoscopy, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Heng Zhang
- Department of Gastrointestinal Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jiejie Xu
- NHC Key Laboratory of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China.
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Chen H, Xiao L, Xie G, Zhang P, Dong P, Bian B, Wang J, Zhou Y, Ma Y, Liu Y, Shen L. LINC00355 promotes gastric carcinogenesis by scaffolding p300 to activate CDC42 transcription and enhancing HNRNPA2B1 to stabilize CDC42 mRNA dependent on m6A. Mol Carcinog 2024; 63:430-447. [PMID: 37983727 DOI: 10.1002/mc.23662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/26/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
LINC00355 is involved in the tumorigenesis of several types of cancer. We verified that LINC00355 is upregulated in gastric cancer (GC) and contributes to GC cells' proliferation and metastasis. RNA sequencing (RNA-seq) and rescue assays suggested that LINC00355 controls gastric carcinogenesis by regulating the expression of cell division cycle 42 (CDC42) guanosine triphosphatase (GTPases), thereby activating their downstream pathways. Most previous studies have shown that LINC00355 acts as a ceRNA by sponging miRNAs to modulate downstream gene expression. Our group focus on epigenetic regulatory potential of LINC00355 in gene expression. Mechanistically, LINC00355 binds to p300 histone acetyltransferase, specifying the histone modification pattern on the CDC42 promoter to activate CDC42 transcription, thereby altering GC cell biology. In addition, HNRNPA2B1, which is upregulated by LINC00355, recognizes the N6-methyladenosine (m6A) sites of CDC42 and enhances the stability of CDC42 mRNA transcripts. Therefore, LINC00355 is mechanistically, functionally, and clinically oncogenic in GC cells.
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Affiliation(s)
- Hui Chen
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lanshu Xiao
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing, China
| | - Guohua Xie
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peng Zhang
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ping Dong
- Department of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bingxian Bian
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Wang
- Department of Clinical Laboratory, Shanghai Ruijin Rehabilitation Hospital, Shanghai, China
| | - Yunlan Zhou
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanhui Ma
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Liu
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lisong Shen
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Faculty of Medical Laboratory Science, College of Health Science and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Artificial Intelligence Medicine, Shanghai Academy of Experimental Medicine, Shanghai, China
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Awadh M, Darwish A, Alqatari H, Buzaid FM, Darwish A. A descriptive analysis of gastric cancer with an immunohistochemical Study of Ki67 and p53 as prognostic factors.: Bahrain experience. Saudi Med J 2023; 44:1300-1309. [PMID: 38016751 PMCID: PMC10712787 DOI: 10.15537/smj.2023.44.12.20230246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 11/05/2023] [Indexed: 11/30/2023] Open
Abstract
OBJECTIVES To describe the increasing number of gastric cancer cases at Bahrain Defense Force Hospital with implementation of immunohistochemistry markers as prognostic factors. METHODS This study included histologically confirmed malignant gastric tumors diagnosed at Bahrain Defense Force Hospital from January 2009 to June 2019. Various epidemiological and pathological data were abstracted and recorded with immunohistochemical analysis of the proliferation marker Ki67 and cell-cycle regulator p53 as prognostic factors. RESULTS A total of 53 patients with gastric cancer were included in the study, with mean age of 59.75 ± 12.9 years. The typical histological types were signet ring cell adenocarcinoma (68%) and intestinal type adenocarcinoma (17%). Helicobacter pylori and intestinal metaplasia were significantly associated with gastric cancer (p<0.01). The studied population's mortality was 39 (74%). The Ki67 proliferation index showed a mean and standard deviation of 67.09 ± 16.338, with a higher mortality rate in patients with low Ki67 but no difference in survival time. No statistically significant association was found between clinicopathological findings with p53 immunostaining positivity. CONCLUSION The common gastric cancers are signet ring cell adenocarcinoma and intestinal type adenocarcinoma, affecting a wide range of age groups (33-91 years), with those over 60 years at greater risk. Interestingly, low Ki67 is associated with a higher mortality rate, whereas p53 has no prognostic significance. Expression of both Ki67 and p53 showed no association with survival time.
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Affiliation(s)
- Mohmmed Awadh
- From the Department of Pathology (Awadh), from the Department of Pathology (Darwish), and from the Department of Training (Buzaid), Crown Prince Centre for Training and Medical Research, Bahrain Defense Force Royal Medical Services; from the Department of Surgery (Darwish, Alqatari), Royal College of Surgeons in Ireland - Medical University of Bahrain, Albussatun, Bahrain.
| | - Aysha Darwish
- From the Department of Pathology (Awadh), from the Department of Pathology (Darwish), and from the Department of Training (Buzaid), Crown Prince Centre for Training and Medical Research, Bahrain Defense Force Royal Medical Services; from the Department of Surgery (Darwish, Alqatari), Royal College of Surgeons in Ireland - Medical University of Bahrain, Albussatun, Bahrain.
| | - Huda Alqatari
- From the Department of Pathology (Awadh), from the Department of Pathology (Darwish), and from the Department of Training (Buzaid), Crown Prince Centre for Training and Medical Research, Bahrain Defense Force Royal Medical Services; from the Department of Surgery (Darwish, Alqatari), Royal College of Surgeons in Ireland - Medical University of Bahrain, Albussatun, Bahrain.
| | - Fatema M. Buzaid
- From the Department of Pathology (Awadh), from the Department of Pathology (Darwish), and from the Department of Training (Buzaid), Crown Prince Centre for Training and Medical Research, Bahrain Defense Force Royal Medical Services; from the Department of Surgery (Darwish, Alqatari), Royal College of Surgeons in Ireland - Medical University of Bahrain, Albussatun, Bahrain.
| | - Abdulla Darwish
- From the Department of Pathology (Awadh), from the Department of Pathology (Darwish), and from the Department of Training (Buzaid), Crown Prince Centre for Training and Medical Research, Bahrain Defense Force Royal Medical Services; from the Department of Surgery (Darwish, Alqatari), Royal College of Surgeons in Ireland - Medical University of Bahrain, Albussatun, Bahrain.
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De Marco K, Sanese P, Simone C, Grossi V. Histone and DNA Methylation as Epigenetic Regulators of DNA Damage Repair in Gastric Cancer and Emerging Therapeutic Opportunities. Cancers (Basel) 2023; 15:4976. [PMID: 37894343 PMCID: PMC10605360 DOI: 10.3390/cancers15204976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/25/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Gastric cancer (GC), one of the most common malignancies worldwide, is a heterogeneous disease developing from the accumulation of genetic and epigenetic changes. One of the most critical epigenetic alterations in GC is DNA and histone methylation, which affects multiple processes in the cell nucleus, including gene expression and DNA damage repair (DDR). Indeed, the aberrant expression of histone methyltransferases and demethylases influences chromatin accessibility to the DNA repair machinery; moreover, overexpression of DNA methyltransferases results in promoter hypermethylation, which can suppress the transcription of genes involved in DNA repair. Several DDR mechanisms have been recognized so far, with homologous recombination (HR) being the main pathway involved in the repair of double-strand breaks. An increasing number of defective HR genes are emerging in GC, resulting in the identification of important determinants of therapeutic response to DDR inhibitors. This review describes how both histone and DNA methylation affect DDR in the context of GC and discusses how alterations in DDR can help identify new molecular targets to devise more effective therapeutic strategies for GC, with a particular focus on HR-deficient tumors.
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Affiliation(s)
- Katia De Marco
- Medical Genetics, National Institute of Gastroenterology—IRCCS “Saverio de Bellis” Research Hospital, Castellana Grotte, 70013 Bari, Italy; (K.D.M.); (P.S.)
| | - Paola Sanese
- Medical Genetics, National Institute of Gastroenterology—IRCCS “Saverio de Bellis” Research Hospital, Castellana Grotte, 70013 Bari, Italy; (K.D.M.); (P.S.)
| | - Cristiano Simone
- Medical Genetics, National Institute of Gastroenterology—IRCCS “Saverio de Bellis” Research Hospital, Castellana Grotte, 70013 Bari, Italy; (K.D.M.); (P.S.)
- Medical Genetics, Department of Precision and Regenerative Medicine and Jonic Area (DiMePRe-J), University of Bari Aldo Moro, 70124 Bari, Italy
| | - Valentina Grossi
- Medical Genetics, National Institute of Gastroenterology—IRCCS “Saverio de Bellis” Research Hospital, Castellana Grotte, 70013 Bari, Italy; (K.D.M.); (P.S.)
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Magyar CTJ, Vashist YK, Stroka D, Kim-Fuchs C, Berger MD, Banz VM. Heat shock protein 90 (HSP90) inhibitors in gastrointestinal cancer: where do we currently stand?-A systematic review. J Cancer Res Clin Oncol 2023; 149:8039-8050. [PMID: 36966394 PMCID: PMC10374781 DOI: 10.1007/s00432-023-04689-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 03/09/2023] [Indexed: 03/27/2023]
Abstract
PURPOSE Dysregulated expression of heat shock proteins (HSP) plays a fundamental role in tumor development and progression. Consequently, HSP90 may be an effective tumor target in oncology, including the treatment of gastrointestinal cancers. METHODS We carried out a systematic review of data extracted from clinicaltrials.gov and pubmed.gov, which included all studies available until January 1st, 2022. The published data was evaluated using primary and secondary endpoints, particularly with focus on overall survival, progression-free survival, and rate of stable disease. RESULTS Twenty trials used HSP90 inhibitors in GI cancers, ranging from phase I to III clinical trials. Most studies assessed HSP90 inhibitors as a second line treatment. Seventeen of the 20 studies were performed prior to 2015 and only few studies have results pending. Several studies were terminated prematurely, due to insufficient efficacy or toxicity. Thus far, the data suggests that HSP90 inhibitor NVP-AUY922 might improve outcome for colorectal cancer and gastrointestinal stromal tumors. CONCLUSION It currently remains unclear which subgroup of patients might benefit from HSP90 inhibitors and at what time point these inhibitors may be beneficial. There are only few new or ongoing studies initiated during the last decade.
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Affiliation(s)
- Christian Tibor Josef Magyar
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | | | - Deborah Stroka
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Corina Kim-Fuchs
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Martin D. Berger
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Vanessa M. Banz
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
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Yang J, Jin F, Li H, Shen Y, Shi W, Wang L, Zhong L, Wu G, Wu Q, Li Y. Identification of mitochondrial respiratory chain signature for predicting prognosis and immunotherapy response in stomach adenocarcinoma. Cancer Cell Int 2023; 23:69. [PMID: 37062830 PMCID: PMC10105960 DOI: 10.1186/s12935-023-02913-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/29/2023] [Indexed: 04/18/2023] Open
Abstract
Stomach adenocarcinoma (STAD) is the third leading cause of cancer-related deaths and the fifth most prevalent malignancy worldwide. Mitochondrial respiratory chain complexes play a crucial role in STAD pathogenesis. However, how mitochondrial respiratory chain complex genes (MRCCGs) affect the prognosis and tumor microenvironment in STAD remains unclear. In this study, we systematically analyzed genetic alterations and copy number variations of different expression densities of MRCCGs, based on 806 samples from two independent STAD cohorts. Then we employed the unsupervised clustering method to classify the samples into three expression patterns based on the prognostic MRCCG expressions, and found that they were involved in different biological pathways and correlated with the clinicopathological characteristics, immune cell infiltration, and prognosis of STAD. Subsequently, we conducted a univariate Cox regression analysis to identify the prognostic value of 1175 subtype-related differentially expressed genes (DEGs) and screened out 555 prognostic-related genes. Principal component analysis was performed and developed the MG score system to quantify MRCCG patterns of STAD. The prognostic significance of MG Score was validated in three cohorts. The low MG score group, characterized by increased microsatellite instability-high (MSI-H), tumor mutation burden (TMB), PD-L1 expression, had a better prognosis. Interestingly, we demonstrated MRCCG patterns score could predict the sensitivity to ferroptosis inducing therapy. Our comprehensive analysis of MRCCGs in STAD demonstrated their potential roles in the tumor-immune-stromal microenvironment, clinicopathological features, and prognosis. Our findings highlight that MRCCGs may provide a new understanding of immunotherapy strategies for gastric cancer and provide a new perspective on the development of personalized immune therapeutic strategies for patients with STAD.
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Affiliation(s)
- Jing Yang
- Laboratory Medicine Center, Department of Laboratory Medicine, Affiliated People's Hospital, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
- Department of Central Laboratory, Affiliated Hangzhou first people's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310006, China
| | - Feifan Jin
- Center for Plastic & Reconstructive Surgery, Department of Stomatology, Affiliated People's Hospital, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Huanjuan Li
- Laboratory Medicine Center, Department of Laboratory Medicine, Affiliated People's Hospital, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Yuhuan Shen
- Laboratory Medicine Center, Department of Laboratory Medicine, Affiliated People's Hospital, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Weilin Shi
- Department of Medicine, Taizhou Luqiao District Second People's Hospital, Taizhou, Zhejiang, 318058, China
| | - Lina Wang
- Department of Medicine, Taizhou Luqiao District Second People's Hospital, Taizhou, Zhejiang, 318058, China
| | - Lei Zhong
- Department of Clinical Laboratory, Tongxiang Hospital of Traditional Chinese Medicine, Jiaxing, Zhejiang, 314599, China
| | - Gongqiang Wu
- Department of Hematology, Dongyang People's Hospital, Dongyang Hospital Affiliated to Wenzhou Medical University, Dongyang, Zhejiang, 322100, China.
| | - Qiaoliang Wu
- Department of Hematology, Jiashan first people's Hospital, Jiaxing, Zhejiang, 314199, China.
| | - Yanchun Li
- Department of Central Laboratory, Affiliated Hangzhou first people's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310006, China.
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Jing Q, Yao H, Li H, Yuan C, Hu J, Zhang P, Wu Y, Zhou Y, Ren X, Yang C, Lei G, Du J, Ke X, Xia J, Tong X. A novel RNA modification prognostic signature for predicting the characteristics of the tumor microenvironment in gastric cancer. Front Oncol 2023; 13:905139. [PMID: 36874129 PMCID: PMC9978099 DOI: 10.3389/fonc.2023.905139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 01/06/2023] [Indexed: 02/18/2023] Open
Abstract
Gastric cancer (GC) is one of the most common neoplastic malignancies, which permutes a fourth of cancer-related mortality globally. RNA modification plays a significant role in tumorigenesis, the underlying molecular mechanism of how different RNA modifications directly affect the tumor microenvironment (TME) in GC is unclear. Here, we profiled the genetic and transcriptional alterations of RNA modification genes (RMGs) in GC samples from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) cohorts. Through the unsupervised clustering algorithm, we identified three distinct RNA modification clusters and found that they participate in different biological pathways and starkly correlate with the clinicopathological characteristics, immune cell infiltration, and prognosis of GC patients. Subsequently, univariate Cox regression analysis unveiled 298 of 684 subtype-related differentially expressed genes (DEGs) are tightly interwoven to prognosis. In addition, we conducted the principal component analysis to develop the RM_Score system, which was used to quantify and predict the prognostic value of RNA modification in GC. Our analysis indicated that patients with high RM_Score were characterized by higher tumor mutational burden, mutation frequency, and microsatellite instability which were more susceptible to immunotherapy and had a favorable prognosis. Altogether, our study uncovered RNA modification signatures that may have a potential role in the TME and prediction of clinicopathological characteristics. Identification of these RNA modifications may provide a new understanding of immunotherapy strategies for gastric cancer.
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Affiliation(s)
- Qiangan Jing
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China.,Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Hongfeng Yao
- Department of Clinical Laboratory, Zhuji People's Hospital of Zhejiang Province, Zhuji, Zhejiang, China
| | - Huanjuan Li
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Chen Yuan
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jiayu Hu
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Ping Zhang
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yunyi Wu
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yi Zhou
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xueying Ren
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Chen Yang
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Guojie Lei
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jing Du
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xia Ke
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Jun Xia
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xiangmin Tong
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China.,Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
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Siri G, Yazdani O, Esbati R, Akhavanfar R, Asadi F, Adili A, Ebrahimzadeh F, Hosseini SME. A comprehensive review of the role of lncRNAs in gastric cancer (GC) pathogenesis, immune regulation, and their clinical applications. Pathol Res Pract 2023; 241:154221. [PMID: 36563559 DOI: 10.1016/j.prp.2022.154221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/09/2022] [Accepted: 11/12/2022] [Indexed: 11/16/2022]
Abstract
Gastric cancer (GC) is the fifth most common malignant tumor and the third leading cause of cancer-related deaths worldwide. Although numerous studies have been conducted on advanced GC, the molecular mechanisms behind it remain obscure. Long non-coding RNAs (lncRNAs) are a family of RNA transcripts capable of regulating target genes at transcriptional, post-transcriptional, and translational stages. They do this by modifying mRNAs, miRNAs, and proteins. These RNAs are critical regulators of many biological processes, including gene epigenetics, transcription, and post-transcriptional levels. This article highlights recent results on lncRNAs involved in drug resistance, proliferation, migration, angiogenesis, apoptosis, autophagy, and immune response in GC. The potential clinical implications of lncRNAs as biomarkers and therapeutic targets in GC are also discussed.
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Affiliation(s)
- Goli Siri
- Department of Internal Medicine, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Omid Yazdani
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Romina Esbati
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Roozbeh Akhavanfar
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Asadi
- Department of Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Ali Adili
- Senior Adult Oncology Department, Moffitt Cancer Center, University of South Florida, Tampa, FL, USA; Department of Oncology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farnoosh Ebrahimzadeh
- Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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HOTAIR Induces the Downregulation of miR-200 Family Members in Gastric Cancer Cell Lines. IRANIAN BIOMEDICAL JOURNAL 2022; 26:77-84. [PMID: 34923813 PMCID: PMC8784900 DOI: 10.52547/ibj.26.1.77] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Background Gastric cancer (GC) is the fourth most common human malignancy and the second reason for cancer morbidity worldwide. Long noncoding RNA (LncRNA) HOX transcript antisense RNA (HOTAIR) has recently emerged as a promoter of metastasis in various cancer types, including GC, through the epithelial‑mesenchymal transition (EMT) process. However, the exact mechanism of HOTAIR in promoting EMT is unknown. Aberrant expression of the miR-200 family has been linked to the occurrence and development of various types of malignant tumors. This study investigates the correlation between the HOTAIR and miR-200 family gene expression patterns in GC cell lines. We investigated the miR-200 and HOTAIR due to their common molecular features in the EMT process. Methods AGS and MKN45 cell lines were transfected with si-HOTAIR, along with a negative control. The effect of HOTAIR knockdown was also analyzed on cell viability and also on the expression of miR-200 family members, including miR-200a, -200b, and -200c, in cell lines using qRT-PCR. Statistical analysis was performed to find the potential correlation between the expression level of HOTAIR and miRs. Results Our results showed significant increased miR-200 family expression level in transfected AGS and MKN45 GC cells (fold changes > 2; p < 0.001). Moreover, a negative correlation was observed between HOTAIR and miR-200 expression levels in GC cell lines (p < 0.05). Conclusion Our findings showed a significant association between miR-200 family and HOTAIR expression levels in GC cell lines. Taken together, the HOTAIR-miR-200 axis seems to play a vital role in human GC, suggesting a potential therapeutic target in future GC treatment.
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Kheirollahi M, Seyed Tabaei S, Vishteh M, Zeinalian M, Mamaghani A, Zolfaghari M, Mirzapour A, Barati M. Methylation and polymorphism in CDH1 gene promoter among patients with diffuse gastric cancer. Int J Prev Med 2022; 13:44. [PMID: 35529508 PMCID: PMC9069152 DOI: 10.4103/ijpvm.ijpvm_288_20] [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: 05/23/2020] [Accepted: 08/07/2020] [Indexed: 12/24/2022] Open
Abstract
Background: The promoter methylation and single nucleotide polymorphisms (SNPs) affect the transcription activity of cancer-related genes in several cancers including diffuse gastric cancer (DGC). Here we aimed to evaluate the promoter methylation status and the rs16260 at the promoter region of the CDH1 gene in DGC. Methods: This case-control study was performed of 48 formalin-fixed paraffin-embedded (FFPE) blocks of DGC patients and 41 fresh frozen tissue samples of healthy individuals. Methylation status was evaluated using methylation-specific polymerase chain reaction (PCR) and the rs16260 at the promoter region of the CDH1 gene was assessed using PCR and sequencing method. Results: The occurrence of methylation at the promoter region of the CDH1 gene in DGC patients was significantly higher than control samples (P < 0.0001). The methylated status was significantly associated with the poor differentiated histological type of DGC (P = 0.0428). The frequency of AC genotype and the A allele in DGC patients was significantly higher than the control subjects (P = 0.006 and 0.003, respectively). Conclusions: Here we showed that methylation at the CDH1 promoter may contribute to the DGC development, and also the AC genotype was associated with the risk of DGC.
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11
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Qadir J, Majid S, Khan MS, Rashid F, Wani MD, Bhat SA. Implication of ARID1A Undercurrents and PDL1, TP53 Overexpression in Advanced Gastric Cancer. Pathol Oncol Res 2021; 27:1609826. [PMID: 34924820 PMCID: PMC8677663 DOI: 10.3389/pore.2021.1609826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 11/17/2021] [Indexed: 11/13/2022]
Abstract
AT-rich interactive domain-containing protein 1A (ARID1A), TP53 and programmed cell death-ligand 1 (PDL1) are involved in several protein interactions that regulate the expression of various cancer-related genes involved in the progression of the cell cycle, cell proliferation, DNA repair, and apoptosis. In addition, gene expression analysis identified some common downstream targets of ARID1A and TP53. It has been established that tumors formed by ARID1A-deficient cancer cells exhibited elevated PDL1 expression. However, the aberrations in these molecules have not been studied in this population especially in Gastric Cancer (GC). In this backdrop we aimed to investigate the role of the ARID1A mutation and expression of ARID1A, TP53 and PDL1 genes in the etiopathogenesis of Gastric Cancer (GC) in the ethnic Kashmiri population (North India). The study included 103 histologically confirmed GC cases. The mutations, if any, in exon-9 of ARID1A gene was analysed by Polymerase Chain Reaction (PCR) followed by Sanger sequencing. The mRNA expression of the ARID1A, TP53 and PDL1 genes was analysed by Quantitative real time-PCR (qRT-PCR). We identified a nonsense mutation (c.3219; C > T) in exon-9 among two GC patients (∼2.0%), which introduces a premature stop codon at protein position 1073. The mRNA expression of the ARID1A, TP53 and PDL1 gene was significantly reduced in 25.3% and elevated in 47.6 and 39.8% of GC cases respectively with a mean fold change of 0.63, 2.93 and 2.43. The data revealed that reduced mRNA expression of ARID1A and elevated mRNA expression of TP53 and PDL1 was significantly associated with the high-grade and advanced stage of cancer. Our study proposes that ARAD1A under-expression and overexpression of TP53 and PDL1 might be crucial for tumor progression with TP53 and PDL1 acting synergistically.
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Affiliation(s)
- Jasiya Qadir
- Department of Biochemistry, Government Medical College Srinagar and Associated Hospitals, Srinagar, India
| | - Sabhiya Majid
- Department of Biochemistry, Government Medical College Srinagar and Associated Hospitals, Srinagar, India
| | - Mosin Saleem Khan
- Department of Biochemistry, Government Medical College Srinagar and Associated Hospitals, Srinagar, India
| | - Fouzia Rashid
- Department of Clinical Biochemistry, University of Kashmir, Srinagar, India
| | - Mumtaz Din Wani
- Department of Surgery, Government Medical College Srinagar and Associated Hospitals, Srinagar, India
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12
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Song X, Wang D, Ben B, Xiao C, Bai L, Xiao H, Zhang W, Li W, Jia J, Qi Y. Association between interleukin gene polymorphisms and susceptibility to gastric cancer in the Qinghai population. J Int Med Res 2021; 49:3000605211004755. [PMID: 33942631 PMCID: PMC8113958 DOI: 10.1177/03000605211004755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To investigate the associations between interleukin (IL) gene polymorphisms and susceptibility to gastric cancer in the Qinghai population, China. METHODS Patients with gastric cancer and cancer-free controls were enrolled into the study from Qinghai Provincial People's Hospital between September 2016 and September 2018. Single nucleotide polymorphisms (SNPs) were genotyped with the Sequenom MassARRAY® SNP genotype system. The Hardy-Weinberg equilibrium in allele and genotype frequencies, and general characteristics between patients with gastric cancer and cancer-free controls, were evaluated using χ2-test. Potential associations between interleukin gene variants and the risk of gastric cancer were analysed by logistic regression. RESULTS Among eight candidate SNPs, the allele and genotype frequency distribution of IL-1B rs1143634 polymorphism was significantly different between patients with gastric cancer (n = 190) and cancer-free controls (n = 186). The IL-1B rs1143634 GA genotype and IL-1B rs1143634 GA + AA genotype were associated with a reduced risk of gastric cancer, however, the remaining SNPs were not statistically associated with gastric cancer risk in the Qinghai population. CONCLUSION The IL-1B rs1143634 polymorphism might be associated with a decreased risk of gastric cancer, and may be a protective factor against gastric cancer.
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Affiliation(s)
- Xiaoyan Song
- Department of Medical Oncology, Qinghai Provincial People's Hospital, Xining, China
| | - Dongmei Wang
- Department of Oncology, Affiliated Hospital of Heze Medical College, Heze, China
| | - Baji Ben
- Department of Medical Oncology, Qinghai Provincial People's Hospital, Xining, China
| | - Chenghua Xiao
- Department of Medical Oncology, Qinghai Provincial People's Hospital, Xining, China
| | - Liyan Bai
- Department of Medical Oncology, Qinghai Provincial People's Hospital, Xining, China
| | - Han Xiao
- Department of Medical Oncology, Qinghai University Affiliated Hospital, Xining, China
| | - Wenyan Zhang
- Department of Medical Oncology, Qinghai Provincial People's Hospital, Xining, China
| | - Wanchao Li
- Department of Oncology, Affiliated Hospital of Heze Medical College, Heze, China
| | - Jingying Jia
- Department of Oncology, Affiliated Hospital of Heze Medical College, Heze, China
| | - Yujuan Qi
- Department of Medical Oncology, Qinghai Provincial People's Hospital, Xining, China
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13
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Zhou L, Li SH, Wu Y, Xin L. Establishment of a prognostic model of four genes in gastric cancer based on multiple data sets. Cancer Med 2021; 10:3309-3322. [PMID: 33934516 PMCID: PMC8124107 DOI: 10.1002/cam4.3654] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 01/22/2023] Open
Abstract
Gastric cancer (GC) is a kind of malignancy with a high mortality and recurrence. An effective prediction model based on ideal biomarkers to assess prognosis could benefit patients for optimization of treatment. Bioinformatics has played an increasingly important role in the study of cancer diseases. Therefore, this study started with bioinformatics to establish a reliable prognostic model of gastric cancer. The gene expression data and clinical data of GC tissues and normal tissues were obtained from the Gene Expression Omnibus (GEO), Genotype‐Tissue Expression (GTEx), and The Cancer Genome Atlas (TCGA) profile database. We finally identified a four gene signature and constructed a prognostic model. The results of internal and external validation showed that the model is highly reliable. In addition, we also constructed a nomogram based on the model, which was verified by a calibration curve to show its predicted accuracy. Comprehensive analysis indicated that the four genes in the model are related to the occurrence and development of tumors, perhaps they are potential targets for tumor treatment. Generally, this prognostic model can bring potential benefits to patients with gastric cancer.
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Affiliation(s)
- Liqiang Zhou
- Department of General Surgery, Nanchang University, The Second Affiliated Hospital of Nanchang University, NanChang, JiangXi, 330006, China
| | - Shi H Li
- Department of General Surgery, Nanchang University, The Second Affiliated Hospital of Nanchang University, NanChang, JiangXi, 330006, China
| | - You Wu
- Department of General Surgery, Nanchang University, The Second Affiliated Hospital of Nanchang University, NanChang, JiangXi, 330006, China
| | - Lin Xin
- Department of General Surgery, Nanchang University, The Second Affiliated Hospital of Nanchang University, NanChang, JiangXi, 330006, China
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14
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A decade in unravelling the etiology of gastric carcinogenesis in Kashmir, India – A high risk region. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Sánchez Y, Vaca-Paniagua F, Herrera L, Oñate L, Herrera-Goepfert R, Navarro-Martínez G, Cerrato D, Díaz-Velázquez C, Quezada EM, García-Cuellar C, Prada D. Nutritional Indexes as Predictors of Survival and Their Genomic Implications in Gastric Cancer Patients. Nutr Cancer 2020; 73:1429-1439. [PMID: 32715775 DOI: 10.1080/01635581.2020.1797833] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gastric cancer is an aggressive malignancy with poor prognosis. Although obesity is a risk factor, an association between overweight and better survival has been reported. We explored the genomic implications of such association. Data from 940 patients were analyzed using Cox regression models and ROC curves to assess body mass index (BMI) and prognostic nutritional index (PNI) as predictors of survival. The exome sequencing of a random subset was analyzed to determine copy number variation (CNV) and single nucleotide variation (SNV), using Kruskal-Wallis and chi-square tests to evaluate their clinical implications. Overall survival was lower in patients with BMI ≤ 24.9 and PNI ≤ 29 (p < 0.001). BMI and survival were directly correlated (HR: 0.972, 95% CI: 0.953, 0.992; p-value < 0.007). A higher PNI correlated with improved survival (HR: 0.586, 95% CI: 0.429, 0.801; p-value <0.001). We found a PNI cutoff point of 41.00 for overall survival. Genomic analysis showed an association between lower BMI, less CNV events (p-value = 0.040) and loss of tumor suppressor genes (p-value = 0.021). BMI and PNI are independent factors for overall survival in gastric cancer, probably linked to variations in genomic intratumoral alterations.
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Affiliation(s)
- Yesennia Sánchez
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Felipe Vaca-Paniagua
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, Mexico
| | - Luis Herrera
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Instituto Nacional de Medicina Genómica, Mexico City, Mexico
| | - Luis Oñate
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Guiselle Navarro-Martínez
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Dennis Cerrato
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Clara Díaz-Velázquez
- Unidad de Biomedicina, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, Mexico
| | - Ericka Marel Quezada
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Claudia García-Cuellar
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Diddier Prada
- Unit of Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Department of Biomedical Informatics, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Department of Environmental Health Science, Mailman School of Public Health, Columbia University, New York City, USA
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16
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Ren ZH, Shang GP, Wu K, Hu CY, Ji T. WGCNA Co-Expression Network Analysis Reveals ILF3-AS1 Functions as a CeRNA to Regulate PTBP1 Expression by Sponging miR-29a in Gastric Cancer. Front Genet 2020; 11:39. [PMID: 32117452 PMCID: PMC7033569 DOI: 10.3389/fgene.2020.00039] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 01/13/2020] [Indexed: 12/12/2022] Open
Abstract
Gastric cancer (GC) is one of the most common types of human cancers worldwide. However, the detail mechanisms underlying GC progression remained to be investigated. The present study identified 2823 differently expressed mRNAs and 441 differently expressed lncRNAs in GC. WGCNA was conducted to identify highly correlated lncRNAs and mRNAs. Bioinformatics analysis observed that these dysregulated lncRNAs were significantly associated with the regulation of angiogenesis, cell division, cell-cell adhesion, blood vessel development, adaptive immune response, gastric acid secretion, immune response. Co-expression analysis identified ILF3-AS1 was a key lncRNA involved in regulating GC progression. Loss of function assays showed that knockdown of ILF3-AS1 significantly suppressed GC cell proliferation and metastasis. Mechanically, the results indicate that ILF3-AS1 could enhance PTBP3 expression as an miR-29a sponge, thereby promoting the proliferation and metastasis of GC cells. Our work suggests that the ILF3-AS1/miR-29a/PTBP3 axis may be a potential target for the clinical diagnosis and treatment of GC.
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Affiliation(s)
- Zhen-Hu Ren
- Department of Oral and Maxillofacial & Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Gao-Pan Shang
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Kun Wu
- Department of Oral and Maxillofacial & Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuan-Yu Hu
- Stomatology Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tong Ji
- Department of Oral and Maxillofacial & Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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17
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Youn YH, Byun HJ, Yoon JH, Park CH, Lee SK. Long Noncoding RNA N-BLR Upregulates the Migration and Invasion of Gastric Adenocarcinoma. Gut Liver 2020; 13:421-429. [PMID: 30970439 PMCID: PMC6622564 DOI: 10.5009/gnl18408] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/29/2018] [Accepted: 11/08/2018] [Indexed: 12/25/2022] Open
Abstract
Background/Aims Gastric cancer is one of the most common malignant tumors worldwide with poor prognosis due to a lack of effective treatment modalities. Recent research showed that a long noncoding RNA named N-BLR modulates the epithelial-to-mesenchymal transition (EMT) process in colorectal cancer. However, the biological role of N-BLR in gastric cancer still remains to be explored. The aim of this study was to investigate the possibility of N-BLR as an EMT modulator in gastric cancer. Methods The expression of N-BLR was measured by quantitative polymerase chain reaction in fresh gastric cancer tissue, paired adjacent normal tissues and cell lines. Fresh gastric tissues, paired samples obtained by surgery and clinical data were collected prospectively. Knockdown of N-BLR was induced by small interfering RNA (siRNAs). Cell number and viability were assessed after treatment with siRNAs. The ability of N-BLR to promote metastasis was measured using migration and invasion assays. Additionally, an inverse correlation between N-BLR and miR-200c was measured by TaqMan microRNA assays. Western blotting was performed to detect EMT and apoptosis markers upon knockdown of N-BLR. Results N-BLR expression was significantly elevated in gastric cancer cell lines and tissues compared to that in a normal gastric cell line and adjacent normal tissues (p<0.01). Two different siRNAs significantly reduced cell proliferation of gastric cancer cells compared to the siCT. siRNAs for N-BLR significantly suppressed migration and invasion in AGS and MKN28 cells. N-BLR expression was inversely correlated with miR-200c, which is known to regulate EMT. Conclusions In this study, we confirmed N-BLR as a regulator of the EMT process in gastric cance
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Affiliation(s)
- Young Hoon Youn
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hyo Joo Byun
- Division of Gastroenterology, Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, Korea
| | - Jung-Ho Yoon
- Division of Gastroenterology, Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Chan Hyuk Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Kil Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, Korea
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18
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Ohyama H, Yoshimura D, Hirotsu Y, Amemiya K, Amano H, Miura Y, Ashizawa H, Nakagomi K, Takaoka S, Hosoda K, Suzuki Y, Oyama T, Hada M, Kojima Y, Mochizuki H, Omata M. Rapidly declining trend of signet ring cell cancer of the stomach may parallel the infection rate of Helicobacter pylori. BMC Gastroenterol 2019; 19:178. [PMID: 31703565 PMCID: PMC6842265 DOI: 10.1186/s12876-019-1094-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 10/16/2019] [Indexed: 12/14/2022] Open
Abstract
Background Studies indicate that gastric cancer (GC) incidence has decreased, whereas signet ring cell carcinoma (SRC) incidence has increased. However, recent trends in GC incidence are unclear. We used our hospital cancer registry to evaluate the changes in the incidence of GC, SRC, and non-SRC (NSRC) over time in comparison to changes in the H. pylori infection rates over time. Methods We identified 2532 patients with GC enrolled in our registry between January 2007 and December 2018 and statistically analyzed SRC and NSRC incidence. The H. pylori infection rate in patients with SRC was determined by serum anti-H. pylori antibody testing, urea breath test, biopsy specimen culture, and immunohistochemical analysis (IHC) of gastric tissue. Additionally, genomic detection of H. pylori was performed in SRCs by extracting DNA from formalin-fixed paraffin-embedded gastric tissue and targeting 16S ribosomal RNA of H. pylori. Results Overall, 211 patients had SRC (8.3%). Compared with patients with NSRC, those with SRC were younger (P < 0.001) and more likely to be female (P < 0.001). Time series analysis using an autoregressive integrated moving average model revealed a significant decrease in SRC (P < 0.001) incidence; NSRC incidence showed no decline. There was no difference in H. pylori infection prevalence between the SRC and NSRC groups. IHC and genomic methods detected H. pylori in 30 of 37 (81.1%) SRCs. Conclusions Reduction in H. pylori infection prevalence may be associated with the decrease in the incidence of SRC, which was higher than that of NSRC.
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Affiliation(s)
- Hiroshi Ohyama
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan.,Genome Analysis Center, Yamanashi Central Hospital, Yamanashi, Japan.,Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Dai Yoshimura
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Yosuke Hirotsu
- Genome Analysis Center, Yamanashi Central Hospital, Yamanashi, Japan
| | - Kenji Amemiya
- Genome Analysis Center, Yamanashi Central Hospital, Yamanashi, Japan
| | - Hiroyuki Amano
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Yuko Miura
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Hiroshi Ashizawa
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Keiko Nakagomi
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Shinya Takaoka
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Kenji Hosoda
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Yoji Suzuki
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Toshio Oyama
- Department of Pathology, Yamanashi Central Hospital, Yamanashi, Japan
| | - Masao Hada
- Department of Surgery, Yamanashi Central Hospital, Yamanashi, Japan
| | - Yuichiro Kojima
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan.
| | - Hitoshi Mochizuki
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan.,Genome Analysis Center, Yamanashi Central Hospital, Yamanashi, Japan
| | - Masao Omata
- Department of Gastroenterology, Yamanashi Central Hospital, Yamanashi, Japan.,Genome Analysis Center, Yamanashi Central Hospital, Yamanashi, Japan.,University of Tokyo, Tokyo, Japan
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19
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Liu Y, Wang W, Li Y, Liu F, Zhang L, Tang T, Zang M, Zhang Y, Ding X. Risk assessment models of integrative medicine indicators for malignant transformation of chronic atrophic gastritis: A registry study protocol. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2019. [DOI: 10.1016/j.jtcms.2019.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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20
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Lu X, Chen F, Liu X, Yuan D, Zi Y, He X, Zhu D. Detection and clinical significance of DNA repair gene ERCC8 tag SNPs in gastric cancer. TURKISH JOURNAL OF GASTROENTEROLOGY 2019; 29:392-396. [PMID: 30249552 DOI: 10.5152/tjg.2018.17662] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND/AIMS Excision repair cross-complementing group 8 (ERCC8) is one of the members of the nucleotide excision repair pathway. This study aimed to explore the association between ERCC8 tag single nucleotide polymorphisms (SNPs) and gastric cancer. MATERIALS AND METHODS Totally, 120 patients with gastric cancer treated from March 2010 to March 2011 were selected as the observation group and 120 healthy individuals were selected as the control group during the same period. The Sequenom MassARRAY system was used to identify genotypes in these samples. The genetic locus of ERCC8 tag SNPs and the relevance of gastric cancer risk to the different ERCC8 genotypes alone or in combination with Helicobacter pylori infection were observed and analyzed. The AA, GA, and GG genotypes on rs158572 and rs158916 in the observation and control groups were compared. RESULTS The results showed that the odds ratio of the different ERCC8 rs158572 and rs158916 genotypes was not significantly increased in the observation group compared with that in the control group. By contrast, in patients with H. pylori infection, the ERCC8 rs158572 GA/GG and rs158916 TT genotypes showed a 7.921-fold and 8.021-fold [95% confidence interval (CI)=4.022-15.921, p=0.029 and 95% CI=3.021-15.092, p=0.021, respectively] increased risk of gastric cancer than the AA and CT/CC genotypes, respectively. CONCLUSION Helicobacter pylori infection combined with ERCC8 rs158572 and rs158916 can be used as a predictive index of gastric cancer occurrence.
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Affiliation(s)
- Xingre Lu
- Department of Clinical Laboratory, The People's Hospital of Wenshan Prefecture, Yunnan, China
| | - Fengyu Chen
- Department of Clinical Laboratory, The People's Hospital of Wenshan Prefecture, Yunnan, China
| | - Xiaowen Liu
- Department of Clinical Laboratory, The People's Hospital of Wenshan Prefecture, Yunnan, China
| | - Diao Yuan
- Department of Clinical Laboratory, The People's Hospital of Wenshan Prefecture, Yunnan, China
| | - Yunju Zi
- Department of Clinical Laboratory, The People's Hospital of Wenshan Prefecture, Yunnan, China
| | - Xiang He
- Department of Clinical Laboratory, The People's Hospital of Wenshan Prefecture, Yunnan, China
| | - Deyong Zhu
- Department of Clinical Laboratory, The People's Hospital of Wenshan Prefecture, Yunnan, China
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21
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Raj N, Verma D, Kumar A, Rai P, Rao RN. HER2 Oncogene Amplification and Immunohistochemical Profiling in Gastric Adenocarcinoma. Discoveries (Craiova) 2018; 6:e83. [PMID: 32309603 PMCID: PMC7086066 DOI: 10.15190/d.2018.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background and Objectives: Gastric adenocarcinoma is one of the most common malignant tumors and a major cause of cancer death worldwide, especially in developing countries. Her2/neu gene amplification and protein overexpression in breast cancer is a golden criterion for the targeted therapy with trastuzumab. However, the role of Her2 as a prognostic factor in gastric cancer is still controversial. The purpose of this study was to evaluate the frequency of Her2 oncogene overexpression and concordance between the results for Her2 protein expression and gene amplification. Materials and Methods: A total of 65 retroprospective cases with gastric adenocarcinoma, including biopsy and resected specimens obtained between July 2015 to December 2017, were analyzed. Her2/neu expression was determined by Immuno-histochemistry (IHC). Equivocal and some selected cases were submitted for FISH to detect Her2/neu gene amplification. Results: In the present study, out of 65 patients of gastric adenocarcinoma, there were 50 males and 15 females, with mean age of 54.52 years. The majority of tumors were located within the antropyloric region. We found 27 (41.4%) positivity, scored as IHC 3+ and IHC 2+, and 38 (58.3%) negativity, scored as IHC 1+ and IHC 0. We also evidentiated a significant difference between Her2/neu expression with age (p=0.010) and depth of invasion (p=0.020).Her2/neu gene was amplified only in 13 cases, 4 cases were of Her2/neu (3+) positive, 11 cases (39.3%) Her2/neu (2+) with IHC staining. The concordance rate between the results of IHC and FISH in all 18 cases was 83.3%. Conclusion: IHC detection can be carried out to guide the treatment when FISH detection cannot be performed. Overexpression of Her 2/neu in gastric adenocarcinoma could potentially be used in selecting the patients who can get benefit from the anti-Her2/neu targeted therapy.
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Affiliation(s)
- Nisha Raj
- Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Divya Verma
- Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Ashok Kumar
- Department of Surgical Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Praveer Rai
- Department of Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Ram Nawal Rao
- Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
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Azimzadeh-Isfanjani A, Safaralizadeh R, Hosseinpour-Feizi M, Shokouhi B, Nemati M, Moaddab SY. Expression of miR-520c in intestinal type gastric adenocarcinoma. J Gastrointest Oncol 2018; 9:1184-1189. [PMID: 30603140 DOI: 10.21037/jgo.2018.08.09] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background MicroRNAs are small non-coding RNAs that participate in post-transcriptional gene regulation in cells thereby playing active role in pathological conditions and have been nominated as new class of biomarkers in disease including cancer. miR-520c has been reported as potential oncogenic micro-RNA in several previous studies. Gastric cancer is the most common cancer of digestive tract and the fourth prevalent cancer worldwide with the intestinal-type gastric adenocarcinoma (IGA) the dominant type of gastric malignancies. This study aimed to explore miR-520c putative role, in IGA and patient's clinicopathological features. Methods Total RNA was first extracted from 42 pairs of IGA tissues and relevant non-tumorous adjacent tissues. cDNA was synthesized from extracted RNAs using specific primers for miR-520c. The level of miR-520c was quantified using SYBER Green Real-Time PCR master mix. The relationship between miR-520c expression and clinicopathological features were examined. Results Our study resulted in no differential expression of miR-520c in IGA. There was no significant correlation between miR-520c expression and clinicopathological features including tumor grade, genus and age groups. Conclusions To our knowledge, this is the first report about exploring miR-520c expression in IGA tissue samples. Our results do not verify miR-520c previously established oncogenic role in IGA.
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Affiliation(s)
| | - Reza Safaralizadeh
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Behrouz Shokouhi
- Pathology Department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masuomeh Nemati
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Seyyed-Yaghoub Moaddab
- Liver and Gastroenterology Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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23
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Bibi F, Ali I, Naseer MI, Ali Mohamoud HS, Yasir M, Alvi SA, Jiman-Fatani AA, Sawan A, Azhar EI. Detection of genetic alterations in gastric cancer patients from Saudi Arabia using comparative genomic hybridization (CGH). PLoS One 2018; 13:e0202576. [PMID: 30212456 PMCID: PMC6136709 DOI: 10.1371/journal.pone.0202576] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 08/06/2018] [Indexed: 02/08/2023] Open
Abstract
Background The present study was conducted to discover genetic imbalances such as DNA copy number variations (CNVs) associated with gastric cancer (GC) and to examine their association with different genes involved in the process of gastric carcinogenesis in Saudi population. Methods Formalin-fixed paraffin-embedded (FFPE) tissues samples from 33 gastric cancer patients and 15 normal gastric samples were collected. Early and late stages GC samples were genotyped and CNVs were assessed by using Illumina HumanOmni1-Quad v.1.0 BeadChip. Results Copy number gains were more frequent than losses throughout all GC samples compared to normal tissue samples. The mean number of the altered chromosome per case was 64 for gains and 40 for losses, and the median aberration length was 679115bp for gains and 375889bp for losses. We identified 7 high copy gain, 52 gains, 14 losses, 32 homozygous losses, and 10 copy neutral LOHs (loss of heterozygosities). Copy number gains were frequently detected at 1p36.32, 1q12, 1q22, 2p11.1, 4q23-q25, 5p12-p11, 6p21.33, 9q12-q21.11, 12q11-q12, 14q32.33, 16p13.3, 17p13.1, 17q25.3, 19q13.32, and losses at 1p36.23, 1p36.32, 1p32.1, 1q44, 3q25.2, 6p22.1, 6p21.33, 8p11.22, 10q22.1, 12p11.22, 14q32.12 and 16q24.2. We also identified 2 monosomy at chromosome 14 and 22, 52 partially trisomy and 22 whole chromosome 4 neutral loss of heterozygosities at 13q14.2-q21.33, 5p15.2-p15.1, 5q11.2-q13.2, 5q33.1-q34 and 3p14.2-q13.12. Furthermore, 11 gains and 2 losses at 1p36.32 were detected for 11 different GC samples and this region has not been reported before in other populations. Statistical analysis confirms significant association of H. pylori infection with T4 stage of GC as compare to control and other stages. Conclusions We found that high frequency of copy number gains and losses at 1p36.23, 1p32.1, 1p36.32, 3q25.2, 6p21.33 and 16q24.2 may be common events in gastric cancer. While novel CNVs at 1p36.32 harbouring PRDM16, TP73 and TP73-AS1 genes showed 11 gains and 2 losses for 11 different GC cases and this region is not reported yet in Database of Genomic Variants may be specific to Saudi population.
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Affiliation(s)
- Fehmida Bibi
- Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
- * E-mail:
| | - Isse Ali
- Centre for Computational Intelligence (CCI), Faculty of Technology, De Montfort University, United Kingdom
| | - Muhammad Imran Naseer
- Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hussein Sheikh Ali Mohamoud
- Department of Clinical Genetics, St George’s University Hospitals NHS Foundation Trust, Cranmer Terrace London, United Kingdom
| | - Muhammad Yasir
- Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Sana Akhtar Alvi
- Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Asif Ahmed Jiman-Fatani
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ali Sawan
- Department of Anatomical Pathology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Esam Ibraheem Azhar
- Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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24
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Patel TN, Chakraborty M, Bhattacharya P. Microsatellite Instability in Chronic Myeloid Leukemia using D17S261 and D3S643 markers: A Pilot Study in Gujarat Population. Indian J Cancer 2018; 54:426-429. [PMID: 29469071 DOI: 10.4103/ijc.ijc_275_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
CONTEXT Tumor progresses through a series of genetic alterations that involve proto-oncogenes and tumor suppressor genes - the gatekeeper, caretakers, and landscaper genes. Microsatellites are short tandem repeat sequences, present over the span of human genome and are known to be variable at multiple loci due to errors in DNA Mismatch Repair machinery. AIM The present study was aimed to evaluate the association between Microsatellite Instability (MSI) and evolution of Chronic Myeloid Leukemia (CML) - genetically a rare event but profound in this pilot study. SETTINGS AND DESIGNS We explore the possibility of MSI in primary CML patients confirmed by t(9;22) using capillary electrophoresis. Fifteen CML patients and healthy individual samples, respectively, were used to study the markers D17S261 and D3S643. MATERIALS AND METHODS The DNA was amplified using tagged and nontagged primers and further subjected to bioanalysis and fragment analysis. RESULTS While the results from bioanalyzer fluctuated, fragment analysis indicated the presence of microsatellite variability in 80% of the patients' samples as compared to no MSI in normal individuals for both the markers. CONCLUSION These findings suggest that MSI is a genetic event that may have a role in CML progression or evolution. Further studies are warranted to understand the plausible underlying causes.
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Affiliation(s)
- T N Patel
- Departments of Integrative Biology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - M Chakraborty
- Departments of Biomedical Genetics, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - P Bhattacharya
- Departments of Integrative Biology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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25
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Matsuoka T, Yashiro M. Biomarkers of gastric cancer: Current topics and future perspective. World J Gastroenterol 2018; 24:2818-2832. [PMID: 30018477 PMCID: PMC6048430 DOI: 10.3748/wjg.v24.i26.2818] [Citation(s) in RCA: 273] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/19/2018] [Accepted: 06/01/2018] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the most prevalent malignant types in the world and an aggressive disease with a poor 5-year survival. This cancer is biologically and genetically heterogeneous with a poorly understood carcinogenesis at the molecular level. Although the incidence is declining, the outcome of patients with GC remains dismal. Thus, the detection at an early stage utilizing useful screening approaches, selection of an appropriate treatment plan, and effective monitoring is pivotal to reduce GC mortalities. Identification of biomarkers in a basis of clinical information and comprehensive genome analysis could improve diagnosis, prognosis, prediction of recurrence and treatment response. This review summarized the current status and approaches in GC biomarker, which could be potentially used for early diagnosis, accurate prediction of therapeutic approaches and discussed the future perspective based on the molecular classification and profiling.
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Affiliation(s)
- Tasuku Matsuoka
- Department of Surgical Oncology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Masakazu Yashiro
- Oncology Institute of Geriatrics and Medical Science, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
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26
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Anderson BW, Suh YS, Choi B, Lee HJ, Yab TC, Taylor WR, Dukek BA, Berger CK, Cao X, Foote PH, Devens ME, Boardman LA, Kisiel JB, Mahoney DW, Slettedahl SW, Allawi HT, Lidgard GP, Smyrk TC, Yang HK, Ahlquist DA. Detection of Gastric Cancer with Novel Methylated DNA Markers: Discovery, Tissue Validation, and Pilot Testing in Plasma. Clin Cancer Res 2018; 24:5724-5734. [PMID: 29844130 DOI: 10.1158/1078-0432.ccr-17-3364] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 03/09/2018] [Accepted: 05/23/2018] [Indexed: 12/16/2022]
Abstract
Purpose: Gastric adenocarcinoma is the third most common cause of cancer mortality worldwide. Accurate and affordable noninvasive detection methods have potential value for screening and surveillance. Herein, we identify novel methylated DNA markers (MDM) for gastric adenocarcinoma, validate their discrimination for gastric adenocarcinoma in tissues from geographically separate cohorts, explore marker acquisition through the oncogenic cascade, and describe distributions of candidate MDMs in plasma from gastric adenocarcinoma cases and normal controls.Experimental Design: Following discovery by unbiased whole-methylome sequencing, candidate MDMs were validated by blinded methylation-specific PCR in archival case-control tissues from U.S. and South Korean patients. Top MDMs were then assayed by an analytically sensitive method (quantitative real-time allele-specific target and signal amplification) in a blinded pilot study on archival plasma from gastric adenocarcinoma cases and normal controls.Results: Whole-methylome discovery yielded novel and highly discriminant candidate MDMs. In tissue, a panel of candidate MDMs detected gastric adenocarcinoma in 92% to 100% of U.S. and South Korean cohorts at 100% specificity. Levels of most MDMs increased progressively from normal mucosa through metaplasia, adenoma, and gastric adenocarcinoma with variation in points of greatest marker acquisition. In plasma, a 3-marker panel (ELMO1, ZNF569, C13orf18) detected 86% (95% CI, 71-95) of gastric adenocarcinomas at 95% specificity.Conclusions: Novel MDMs appear to accurately discriminate gastric adenocarcinoma from normal controls in both tissue and plasma. The point of aberrant methylation during oncogenesis varies by MDM, which may have relevance to marker selection in clinical applications. Further exploration of these MDMs for gastric adenocarcinoma screening and surveillance is warranted. Clin Cancer Res; 24(22); 5724-34. ©2018 AACR.
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Affiliation(s)
- Bradley W Anderson
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Yun-Suhk Suh
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Boram Choi
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Hyuk-Joon Lee
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Tracy C Yab
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - William R Taylor
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Brian A Dukek
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Calise K Berger
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Xiaoming Cao
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Patrick H Foote
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Mary E Devens
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Lisa A Boardman
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - John B Kisiel
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Douglas W Mahoney
- Department of Biomedical Statistics and Information, Mayo Clinic, Rochester, Minnesota
| | - Seth W Slettedahl
- Department of Biomedical Statistics and Information, Mayo Clinic, Rochester, Minnesota
| | | | | | - Thomas C Smyrk
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Han-Kwang Yang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - David A Ahlquist
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.
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Liu X, Li Z, Song Y, Wang R, Han L, Wang Q, Jiang K, Kang C, Zhang Q. AURKA induces EMT by regulating histone modification through Wnt/β-catenin and PI3K/Akt signaling pathway in gastric cancer. Oncotarget 2018; 7:33152-64. [PMID: 27121204 PMCID: PMC5078082 DOI: 10.18632/oncotarget.8888] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 03/28/2016] [Indexed: 12/31/2022] Open
Abstract
Gastric cancer, a highly invasive and aggressive malignancy, is the third leading cause of death from cancer worldwide. Genetic association studies have successfully revealed several important genes consistently associated with gastric cancer to date. However, these robust gastric cancer-associated genes do not fully elucidate the mechanisms underlying the development and progression of the disease. In the present study, we performed an alternative approach, a gene expression-based genome-wide association study (eGWAS) across 13 independent microarray experiments (including 251 gastric cancer cases and 428 controls), to identify top candidates (p<0.00001). Additionally, we conducted gene ontology analysis, pathway analysis and network analysis and identified aurora kinase A (AURKA) as our candidate. We observed that MLN8237, which is a specific inhibitor of AURKA, decreased the β-catenin and the phosphorylation of Akt1 and GSK-3β, as well as blocked the Akt and Wnt signaling pathways. Furthermore, MLN8237 arrested the cells in the G2/M phase. The activity of Wnt and Akt signaling pathways affected the level of histone methylation significantly, and we supposed that MLN8237 affected the level of histone methylation through these two signaling pathways. Additionally, the treatment of MLN8237 influenced the level of H3K4 me1/2/3 and H3K27 me1/2/3. Chip data on cell lines suggested that MLN8237 increases the level of H3K27 me3 on the promoter of Twist and inhibits EMT (epithelial-mesenchymal transition). In summary, AURKA is a potential therapeutic target in gastric cancer and induces EMT through histone methylation.
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Affiliation(s)
- Xi Liu
- Department of Gastroenterology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Zhaoxia Li
- Department of Gastroenterology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yue Song
- Department of Gastroenterology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Rui Wang
- Department of Gastroenterology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Lei Han
- Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin 300052, China
| | - Qixue Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Heping District, Tianjin 300052, China.,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin 300052, China
| | - Kui Jiang
- Department of Gastroenterology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Heping District, Tianjin 300052, China.,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin 300052, China
| | - Qingyu Zhang
- Department of Gastroenterology, Tianjin Medical University General Hospital, Tianjin 300052, China
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28
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Nemtsova MV, Strelnikov VV, Tanas AS, Bykov II, Zaletaev DV, Rudenko VV, Glukhov AI, Kchorobrich TV, Li Y, Tarasov VV, Barreto GE, Aliev G. Implication of Gastric Cancer Molecular Genetic Markers in Surgical Practice. Curr Genomics 2017; 18:408-415. [PMID: 29081696 PMCID: PMC5635646 DOI: 10.2174/1389202918666170329110021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 01/17/2016] [Accepted: 03/20/2016] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION We have investigated aberrant methylation of genes CDH1, RASSF1A, MLH1, N33, DAPK, expression of genes hTERT, MMP7, MMP9, BIRC5 (survivin), PTGS2, and activity of telomerase of 106 gastric tumor samples obtained intra-operatively and 53 gastric tumor samples from the same group of patients obtained endoscopically before surgery. Biopsy specimens obtained from 50 patients with chronic calculous cholecystitis were used as a control group. Together with tissue samples obtained from different sites remote to tumors, a total of 727 samples have been studied. The selected parameters comprise a system of molecular markers that can be used in both diagnostics of gastric cancer and in dynamic monitoring of patients after surgery. Special attention was paid to the use of molecular markers for the diagnostics of malignant process in the material obtained endoscopically since the efficacy of morphological diagnostics in biopsies is compromised by intratumoral heterogeneity, which may prevent reliable identification of tumor cells in the sampling. Our data indicated that certain molecular genetic events provided more sensitive yet specific markers of the tumor. CONCLUSION We demonstrated that molecular profiles detected in preoperative biopsies were confirmed by the material obtained intra-operatively. The use of endoscopic material facilitates gastric tumors pre-operative diagnostics, improving early detection of gastric cancer and potential effective treatment strategies.
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Affiliation(s)
- Marina V Nemtsova
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Russian Ministry of Health, Trubetskaya St. 8/2, Moscow, 119991, Russian Federation.,Department of Medical Genetics, Russian Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation, Moscow, 119991, Russian Federation
| | | | - Alexander S Tanas
- Research Centre for Medical Genetics, Moskvorechie St. 1, 115472, Moscow, Russia
| | - Igor I Bykov
- Department No 1, Medical Faculty, Faculty Surgery, Sechenov First Moscow State Medical University, Russian Ministry of Health, Trubetskaya St. 8/2, Moscow, 119991, Russian Federation
| | - Dmitry V Zaletaev
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Russian Ministry of Health, Trubetskaya St. 8/2, Moscow, 119991, Russian Federation.,Research Centre for Medical Genetics, Moskvorechie St. 1, 115472, Moscow, Russia
| | - Viktoria V Rudenko
- Research Centre for Medical Genetics, Moskvorechie St. 1, 115472, Moscow, Russia
| | - Alexander I Glukhov
- Department of Biochemistry, Sechenov First Moscow State Medical University, Russian Ministry of Health, Trubetskaya, 8/2, Moscow, 119991, Russian Federation.,National Research Centre "Kurchatov Institute", Moscow, 123182, Russia
| | - Tatiana V Kchorobrich
- Department No 1, Medical Faculty, Faculty Surgery, Sechenov First Moscow State Medical University, Russian Ministry of Health, Trubetskaya St. 8/2, Moscow, 119991, Russian Federation
| | - Yi Li
- Department of Human Sciences, Texas A&M University-Kingsville, TX 78363, USA
| | - Vadim V Tarasov
- Institute of Pharmacy and Translational Medicine, Sechenov First Moscow State Medical University, 119991Moscow, Russia
| | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, BogotáD.C., Colombia
| | - Gjumrakch Aliev
- "GALLY" International Biomedical Research Consulting LLC, San Antonio, TX78229, USA.,School of Health Sciences, University of Atlanta, Johns Creek, GA 30097, USA.,Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, 142432, Russia
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Wang DD, Jin Q, Wang LL, Han SF, Chen YB, Sun GD, Sun SF, Sun SW, Wang T, Liu FJ, Wang P, Shi B. The significance of ENAH in carcinogenesis and prognosis in gastric cancer. Oncotarget 2017; 8:72466-72479. [PMID: 29069803 PMCID: PMC5641146 DOI: 10.18632/oncotarget.19801] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 07/12/2017] [Indexed: 11/25/2022] Open
Abstract
The ENAH gene, which encodes a member of the enabled/vasodilator-stimulated phosphoprotein (Ena/VASP) family of proteins, is involved in the assembly of actin filaments required for cell adhesion and motility. Recent studies show overexpressed ENAH in several cancer types, and ENAH correlates with tumor invasiveness. This study aimed to investigate the expression and function of ENAH in primary gastric adenocarcinoma, and its prognostic significance. We found significantly increased mRNA (P = 0.0283) and protein (P = 0.0301) expression of ENAH in gastric cancer tissues. ENAH expression markedly associated with tumor size (P < 0.001), T stage (P < 0.001), N stage (P = 0.001), TNM stage (P < 0.001) and prognosis (P < 0.001). Cox regression analyses revealed ENAH expression as an independent predictor of overall survival (P = 0.019). We also analyzed data of 155 gastric cancer cases from The Cancer Genome Atlas (TCGA) and found that ENAH expression significantly correlated with age (P = 0.003), T stage (P = 0.023) and prognosis (P = 0.05). Furthermore, the function of ENAH in cell proliferation, colony formation, cell migration and invasion of gastric cancer cells was analyzed in vitro. Knockdown of ENAH expression suppressed cell proliferation, colony formation, cell migration and invasion in MKN45 cells. Conversely, overexpression of ENAH promoted cell proliferation, cell migration and invasion in MGC803 cells. Our research suggests that ENAH might play promoting functions in carcinogenesis and progression of gastric cancer, and may serve as a valuable prognostic marker for primary gastric adenocarcinoma patients.
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Affiliation(s)
- Dan-Dan Wang
- Shandong Medicinal Biotechnology Centre, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Back and Neck Pain Hospital of Shandong Academy of Medical Sciences, Jinan 250062, People's Republic of China
| | - Qun Jin
- The General Hospital of Jinan Military Command, Jinan 250012, People's Republic of China
| | - Lei-Lei Wang
- Key Laboratory for Applied Microbiology of Shandong Province, Ecology Institute of Shandong Academy of Sciences, Jinan 250014, People's Republic of China
| | - Shu-Fang Han
- The General Hospital of Jinan Military Command, Jinan 250012, People's Republic of China
| | - Yi-Bing Chen
- Center of Genetic & Prenatal Diagnosis, First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Guo-Dong Sun
- Affiliated Hospital of Shandong Academy of Medical Sciences, Shandong Academy of Medical Sciences, Jinan 250031, People's Republic of China
| | - Shi-Fei Sun
- Shandong Medicinal Biotechnology Centre, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Back and Neck Pain Hospital of Shandong Academy of Medical Sciences, Jinan 250062, People's Republic of China
| | - Shu-Wang Sun
- Shandong Medicinal Biotechnology Centre, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Back and Neck Pain Hospital of Shandong Academy of Medical Sciences, Jinan 250062, People's Republic of China
| | - Tao Wang
- Shandong Medicinal Biotechnology Centre, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Back and Neck Pain Hospital of Shandong Academy of Medical Sciences, Jinan 250062, People's Republic of China
| | - Fan-Jie Liu
- Shandong Medicinal Biotechnology Centre, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Back and Neck Pain Hospital of Shandong Academy of Medical Sciences, Jinan 250062, People's Republic of China
| | - Ping Wang
- School of Precision Instrument and Opto Electronics Engineering, Tianjin University, Tianjin 300072, People's Republic of China.,Shandong Academy of Chinese Medicine, Jinan 250014, People's Republic of China
| | - Bin Shi
- Shandong Medicinal Biotechnology Centre, Key Laboratory for Rare & Uncommon Diseases of Shandong Province, Back and Neck Pain Hospital of Shandong Academy of Medical Sciences, Jinan 250062, People's Republic of China
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30
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Zhang Y, Xu X, Chen Z, Zhao Z. Association of FHIT expression and FHIT gene hypermethylation with liver cancer risk: a PRISMA-compliant meta-analysis. Onco Targets Ther 2017; 10:3083-3093. [PMID: 28790842 PMCID: PMC5488786 DOI: 10.2147/ott.s138036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background There have been suggestions that fragile histidine triad protein (FHIT) expression and FHIT gene hypermethylation were crucial to the pathogenesis of liver cancer. However, the conclusions remained unclear because of small sample size, disease subtype, and different detection techniques. Therefore, we performed a meta-analysis to estimate the associations of FHIT expression and FHIT gene hypermethylation with liver cancer pathogenesis. Methods Studies that were published in electronic databases, such as PubMed, Web of Knowledge, China National Knowledge Infrastructure (CNKI), VIP, and WanFang, were retrieved and selected for the meta-analysis. Relative risk (RR) and 95% confidence interval (CI) were calculated to determine the correlations of FHIT expression and FHIT gene hyper-methylation with liver cancer pathogenesis with Stata 12.0 software. Results A total of 17 papers that evaluated the associations of FHIT expression (14 articles) and FHIT gene methylation (3 articles) with liver cancer pathogenesis were included in this meta-analysis. In the overall analysis, the pooled relative risk was 1.93 (95% CI =1.72–2.17), which indicated a significant association between FHIT low expression and liver cancer risk. According to the results of clinical information, there were significant associations of FHIT expression with TNM-stage (RR =2.13, 95% CI =1.72–2.64), tumor size (RR =1.67, 95% CI =1.36–2.05), and merger of cirrhosis (RR =1.34, 95% CI =1.06–1.69) of liver cancer in the Chinese population. In addition, the FHIT gene hypermethylation was significantly associated with the risk of liver cancer (RR =1.45, 95% CI =1.08–1.93). Conclusion The FHIT expression and hypermethylation of FHIT gene were significantly associated with the risk of liver cancer, especially in the Chinese population. Furthermore, the results indicated significant associations between FHIT low expression and TNM-stage, tumor size, and merging of cirrhosis of liver cancer in the Chinese population.
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Affiliation(s)
| | | | - Zhiliang Chen
- Department of Hepatobiliary Surgery, Shaoxing City People's Hospital, Shaoxing, Zhejiang Province, People's Republic of China
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Kobayashi T, Ishida J, Shimizu Y, Kawakami H, Suda G, Muranaka T, Komatsu Y, Asaka M, Sakamoto N. Decreased RNA-binding motif 5 expression is associated with tumor progression in gastric cancer. Tumour Biol 2017; 39:1010428317694547. [PMID: 28347247 DOI: 10.1177/1010428317694547] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
RNA-binding motif 5 is a putative tumor suppressor gene that modulates cell cycle arrest and apoptosis. We recently demonstrated that RNA-binding motif 5 inhibits cell growth through the p53 pathway. This study evaluated the clinical significance of RNA-binding motif 5 expression in gastric cancer and the effects of altered RNA-binding motif 5 expression on cancer biology in gastric cancer cells. RNA-binding motif 5 protein expression was evaluated by immunohistochemistry using the surgical specimens of 106 patients with gastric cancer. We analyzed the relationships of RNA-binding motif 5 expression with clinicopathological parameters and patient prognosis. We further explored the effects of RNA-binding motif 5 downregulation with short hairpin RNA on cell growth and p53 signaling in MKN45 gastric cancer cells. Immunohistochemistry revealed that RNA-binding motif 5 expression was decreased in 29 of 106 (27.4%) gastric cancer specimens. Decreased RNA-binding motif 5 expression was correlated with histological differentiation, depth of tumor infiltration, nodal metastasis, tumor-node-metastasis stage, and prognosis. RNA-binding motif 5 silencing enhanced gastric cancer cell proliferation and decreased p53 transcriptional activity in reporter gene assays. Conversely, restoration of RNA-binding motif 5 expression suppressed cell growth and recovered p53 transactivation in RNA-binding motif 5-silenced cells. Furthermore, RNA-binding motif 5 silencing reduced the messenger RNA and protein expression of the p53 target gene p21. Our results suggest that RNA-binding motif 5 downregulation is involved in gastric cancer progression and that RNA-binding motif 5 behaves as a tumor suppressor gene in gastric cancer.
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Affiliation(s)
- Takahiko Kobayashi
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Junich Ishida
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuichi Shimizu
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroshi Kawakami
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Goki Suda
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tetsuhito Muranaka
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshito Komatsu
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masahiro Asaka
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naoya Sakamoto
- Department of Gastroenterology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Zeng C, Feng X, Wang W, Lv L, Fang C, Chi L, Huang L, Zhou Z. Decreased expression of insulin-like growth factor binding protein 6 is associated with gastric adenocarcinoma prognosis. Oncol Lett 2017; 13:4161-4168. [PMID: 28588703 PMCID: PMC5452904 DOI: 10.3892/ol.2017.5993] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 03/09/2017] [Indexed: 01/28/2023] Open
Abstract
The present study aimed to investigate the expression and prognostic significance of insulin-like growth factor binding protein 6 (IGFBP-6) in gastric adenocarcinoma. The expression of IGFBP-6 was examined in 263 specimens from gastric adenocarcinoma patients using reverse transcription-quantitative polymerase chain reaction (RT-qPCR), western blotting and immunohistochemical (IHC) staining. The association between IGFBP-6 expression, clinicopathological factors and clinical outcomes was investigated. Akaike information criterion (AIC) and Harrell's concordance index (c-index) were used to evaluate the accuracy of the predictive prognosis. RT-qPCR and western blotting results showed that IGFBP-6 mRNA expression was lower in the tumors compared with that in adjacent non-tumor tissues. IGFBP-6 showed significantly decreased expression in 170 out of 263 patients based on IHC data and this was associated with a larger tumor size (P<0.001) and poorly-differentiated adenocarcinoma (P=0.001), as well as with palliative gastrectomy (P=0.015). Additionally, decreased expression of IGFBP-6 was associated with stage T3/4a/4b disease and lymph node-positive metastasis (P<0.001). The association between decreased expression and a poor prognosis was revealed by Kaplan-Meier curves. Cox regression model identified IGFBP-6 as an independent prognostic factor. The prognostic value of the model with IGFBP-6 expression (AIC, 924.881; c-index, 0.878) was superior to that without IGFBP-6 expression (AIC, 947.164; c-index, 0.825). In conclusion, IGFBP-6 involves the development and progression of gastric adenocarcinoma, and its decreased expression predicts poor clinical outcomes.
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Affiliation(s)
- Changqing Zeng
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China.,Department of Gastrointestinal Surgery, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Xingyu Feng
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Science, Guangzhou, Guangdong 510060, P.R. China
| | - Wei Wang
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Lin Lv
- Department of Oncology, Guangzhou First People's Hospital, Guangzhou, Guangdong 510180, P.R. China
| | - Cheng Fang
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Liangjie Chi
- Department of Gastrointestinal Surgery, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Liangxiang Huang
- Department of Gastrointestinal Surgery, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China
| | - Zhiwei Zhou
- Department of Gastric Surgery, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
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Lee NK, Lee JH, Ivan C, Ling H, Zhang X, Park CH, Calin GA, Lee SK. MALAT1 promoted invasiveness of gastric adenocarcinoma. BMC Cancer 2017; 17:46. [PMID: 28077118 PMCID: PMC5225525 DOI: 10.1186/s12885-016-2988-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 12/09/2016] [Indexed: 12/22/2022] Open
Abstract
Background Gastric cancer is the second leading cause of cancer globally, and the mechanism of its pathogenesis is still largely unknown. Recently, non-coding RNAs have been recognized to promote metastasis in various cancers, including gastric cancer. Methods We found that metastasis associated lung adenocarcinoma transcript-1 (MALAT1) is upregulated in gastric cancer tissue compared to adjacent normal tissue, as determined by microarray and subsequent qRT-PCR, then investigated the impact of MALAT1 on apoptosis, cell proliferation, and the cell cycle to dissect the carcinogenesis of gastric cancer, and examined mechanisms of invasion and metastasis. Expression of MALAT1 and U6 was determined by SYBR qRT-PCR in nine-teen gastric cancer cell lines and fifty fresh samples of cancer tissue and adjacent tissues. Downregulation of MALAT1 was accomplished with two different siRNAs. Cell proliferation was determined after treatment with these siRNAs. FACS using PI/Annexin-V staining was carried out. To analyze the invasiveness, a scratch wound-healing assay and a Matrigel invasion assay were performed. Cancer related gene expression assay was done after transfection of siR- MALAT1. Results The expression of MALAT1 was significantly elevated in various gastric cancer cell lines and gastric cancer tissues compared to normal cell lines and tissues (p < 0.01). siR-MALAT1 significantly reduced viable AGS cell numbers and induced apoptosis (p < 0.05). Deep invasion of tumor (advanced T stages) was more common in the high MALAT1-level group (p = 0.039). siR-MALAT1 significantly decreased AGS cell invasiveness and migration. siR-MALAT1 reduced expression of snail and N-cadherin, and elevated E-cadherin. The Wnt/β-catenin related genes were significantly decreased by transfection of siRNA MALAT1. MALAT1 is involved in gastric carcinogenesis via inhibition of apoptosis and promotes invasiveness via the epithelial-to-mesenchymal transition. Conclusions In our study, we found that deregulation of MALAT1 could be involved in both tumorigenesis and invasiveness in gastric cancer cells. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2988-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Na Keum Lee
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Jung Hwa Lee
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Cristina Ivan
- Department of Experimental Therapeutics and Center for RNA Interference and Non-Coding RNAs, University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Hui Ling
- Department of Experimental Therapeutics and Center for RNA Interference and Non-Coding RNAs, University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Xinna Zhang
- Department of Experimental Therapeutics and Center for RNA Interference and Non-Coding RNAs, University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Chan Hyuk Park
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - George A Calin
- Department of Experimental Therapeutics and Center for RNA Interference and Non-Coding RNAs, University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Sang Kil Lee
- Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
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Exploratory Factor Analysis for Validating Traditional Chinese Syndrome Patterns of Chronic Atrophic Gastritis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:6872890. [PMID: 28077948 PMCID: PMC5204105 DOI: 10.1155/2016/6872890] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 10/31/2016] [Indexed: 01/30/2023]
Abstract
Background. Traditional Chinese medicine (TCM) has long been used to treat chronic atrophic gastritis (CAG). The aim of the present study was to evaluate the TCM syndrome characteristics of CAG and its core pathogenesis so as to promote optimization of treatment strategies. Methods. This study was based on a participant survey conducted in 4 hospitals in China. Patients diagnosed with CAG were recruited by simple random sampling. Exploratory factor analysis (EFA) was conducted on syndrome extraction. Results. Common factors extracted were assigned to six syndrome patterns: qi deficiency, qi stagnation, blood stasis, phlegm turbidity, heat, and yang deficiency. Distribution frequency of all syndrome patterns showed that qi deficiency, qi stagnation, blood stasis, phlegm turbidity, and heat excess were higher (76.7%-84.2%) compared with yang deficiency (42.5%). Distribution of main syndrome patterns showed that frequencies of qi deficiency, qi stagnation, phlegm turbidity, heat, and yang deficiency were higher (15.8%-20.8%) compared with blood stasis (8.3%). Conclusions. The core pathogenesis of CAG is combination of qi deficiency, qi stagnation, blood stasis, phlegm turbidity, heat, and yang deficiency. Therefore, treatment strategy of herbal prescriptions for CAG should include herbs that regulate qi, activate blood, resolve turbidity, clear heat, remove toxin, and warm yang.
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Karpińska-Kaczmarczyk K, Lewandowska M, Ławniczak M, Białek A, Urasińska E. Expression of Mismatch Repair Proteins in Early and Advanced Gastric Cancer in Poland. Med Sci Monit 2016; 22:2886-92. [PMID: 27527654 PMCID: PMC4996049 DOI: 10.12659/msm.897150] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 01/05/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Mutations in DNA of mismatch repair (MMR) genes result in failure to repair errors that occur during DNA replication in microsatellites, resulting in accumulation of frameshift mutations in these genes and leading to DNA mismatch replication errors and microsatellite instability. Gastric cancers (GCs) with high MSI (MSI-H) are a well-defined subset of carcinomas showing distinctive clinicopathological features. In this study we investigated the rate of MSI and the correlation between MSI status and clinicopathological features of GC. MATERIAL AND METHODS The study included 107 patients with GCs: 61 with advanced gastric cancers (AGC) and 46 with early gastric cancer (EGC). MSI deficiency in GCs was assessed by the immunohistochemical analysis of expression of MMR proteins - MLH1, MSH2, MSH6, and PMS2 - using formalin-fixed and paraffin-embedded tissue. RESULTS A total of 6 (5.6%) MSI-H were observed. The loss of MMR proteins expression was associated with the intestinal type of GC in Lauren classification, and tubular and papillary architecture in WHO classification. There was no statistically significant association between negative MMR expression and other selected clinical parameters: age, sex, tumor location, depth of invasion (EGC and AGC), lymph nodes status, presence of the ulceration, and lymphocytic infiltrate. CONCLUSIONS In the present era of personalized medicine, the histological type of GC and MMR proteins status in cancer cells are very important for the proper surveillance of patients with familial GC and sporadic GCs, as well as for selecting the proper follow-up and treatment. Larger collaborative studies are needed to verify the features of MSI-H GCs in Poland.
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Affiliation(s)
| | | | | | - Andrzej Białek
- Department of Gastroenterology, Pomeranian Medical University, Szczecin, Poland
| | - Elżbieta Urasińska
- Department of Pathology, Pomeranian Medical University, Szczecin, Poland
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Baniak N, Senger JL, Ahmed S, Kanthan SC, Kanthan R. Gastric biomarkers: a global review. World J Surg Oncol 2016; 14:212. [PMID: 27514667 PMCID: PMC4982433 DOI: 10.1186/s12957-016-0969-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 08/02/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Gastric cancer is an aggressive disease with a poor 5-year survival and large global burden of disease. The disease is biologically and genetically heterogeneous with a poorly understood carcinogenesis at the molecular level. Despite the many prognostic, predictive, and therapeutic biomarkers investigated to date, gastric cancer continues to be detected at an advanced stage with resultant poor clinical outcomes. MAIN BODY This is a global review of gastric biomarkers with an emphasis on HER2, E-cadherin, fibroblast growth factor receptor, mammalian target of rapamycin, and hepatocyte growth factor receptor as well as sections on microRNAs, long noncoding RNAs, matrix metalloproteinases, PD-L1, TP53, and microsatellite instability. CONCLUSION A deeper understanding of the pathogenesis and biological features of gastric cancer, including the identification and characterization of diagnostic, prognostic, predictive, and therapeutic biomarkers, hopefully will provide improved clinical outcomes.
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Affiliation(s)
- Nick Baniak
- Department of Pathology and Laboratory Medicine, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
| | - Jenna-Lynn Senger
- Department of Surgery, University of Alberta, 116 St & 85 Ave, Edmonton, T6G 2R3, T6G 2B7 AB Canada
| | - Shahid Ahmed
- Division of Medical Oncology, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
| | - S. C. Kanthan
- Department of General Surgery, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
| | - Rani Kanthan
- Department of General Surgery, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
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38
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Park SK, Park YS, Ahn JY, Do EJ, Kim D, Kim JE, Jung K, Byeon JS, Ye BD, Yang DH, Park SH, Hwang SW, Jung HY, Myung SJ. MiR 21-5p as a predictor of recurrence in young gastric cancer patients. J Gastroenterol Hepatol 2016; 31:1429-35. [PMID: 26824898 DOI: 10.1111/jgh.13300] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM It is generally assumed that gastric cancer (GC) in young patients has different clinicopathologic characteristics than that of elderly patients. Although recurrence is an important factor in determining prognosis, traditional clinicopathological factors are sometimes inadequate for predicting recurrence in individuals. Therefore, we aimed to identify miRNAs with the potential to predict recurrence in young patients. METHODS Young patients (age <40 years) undergoing gastrectomy for potentially curable GC (stage III) at Asan Medical Center participated in this study. A total of 50 GC patients with (n = 28) and without (n = 22) GC recurrence were selected for analysis. miRNA microarrays were analyzed to screen tissue samples (n = 7), and we validated the selected miRNAs by quantitative PCR in validation samples (n = 43). RESULTS Two miRNAs (hsa-miR-21-5p and hsa-miR-451a) identified in the microarray analysis were evaluated in the validation samples. Among the validation samples containing intratumoral stroma ≥ 70 (n = 35), hsa-miR-21-5p was more highly expressed in the recurrence group than in the nonrecurrence group (fold change 1.82, P = 0.03). In the validation samples with intratumoral stroma ≥ 70, the ΔCt of hsa-miR-21-5p, which was >3.35, had a sensitivity and specificity of 86.7% and 65.5%, respectively, for predicting recurrence, with an area under the ROC curve of 0.723. CONCLUSIONS miR-21-5p may be useful as a predictor of recurrence in young GC patients whose tumors contain a high proportion of intratumoral stroma. The combination of this miRNA with conventional clinicopathological factors should allow patient prognoses to be more accurately predicted.
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Affiliation(s)
- Soo-Kyung Park
- Division of Gastroenterology, Department of Internal medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young Soo Park
- Department of Pathology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Yong Ahn
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun-Ju Do
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | | | | | - Kyoungwon Jung
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong-Sik Byeon
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byong Duk Ye
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dong Hoon Yang
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Hyoung Park
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung Wook Hwang
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hwoon-Yong Jung
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung-Jae Myung
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea.,Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Alpízar-Alpízar W, Laerum OD, Christensen IJ, Ovrebo K, Skarstein A, Høyer-Hansen G, Ploug M, Illemann M. Tissue Inhibitor of Metalloproteinase-1 Is Confined to Tumor-Associated Myofibroblasts and Is Increased With Progression in Gastric Adenocarcinoma. J Histochem Cytochem 2016; 64:483-94. [PMID: 27370797 DOI: 10.1369/0022155416656173] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/31/2016] [Indexed: 12/20/2022] Open
Abstract
The tissue inhibitor of metalloproteinase-1 (TIMP-1) inhibits the extracellular matrix-degrading activity of several matrix metalloproteinases, thereby regulating cancer cell invasion and metastasis. Studies describing the expression pattern and cellular localization of TIMP-1 in gastric cancer are, however, highly discordant. We addressed these inconsistencies by performing immunohistochemistry and in situ hybridization analyses in a set of 49 gastric cancer lesions to reexamine the TIMP-1 localization. In addition, we correlated these findings to clinicopathological parameters. We show that strong expression of TIMP-1 protein and mRNA was observed in a subpopulation of stromal fibroblast-like cells at the periphery of the cancer lesions. In a few cases, a small fraction of cancer cells showed weak expression of TIMP-1 protein and mRNA. The stromal TIMP-1-expressing cells were mainly tumor-associated myofibroblasts. In the normal-appearing mucosa, scattered TIMP-1 protein was only found in chromogranin A positive cells. TIMP-1-positive myofibroblasts at the invasive front of the tumors were more frequently seen in intestinal than in diffuse histological subtype cases (p=0.009). A significant trend to a higher number of cases showing TIMP-1 staining in myofibroblasts with increasing tumor, node, metastasis (TNM) stage was also revealed (p=0.041). In conclusion, tumor-associated myofibroblasts are the main source of increased TIMP-1 expression in gastric cancer.
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Affiliation(s)
- Warner Alpízar-Alpízar
- The Finsen Laboratory, Rigshospitalet, Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Biotech Research and Innovation Center (BRIC), University of Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Center for Research in Microscopic Structures (CIEMIC) and Cancer Research Program, Health Research Institute (INISA), University of Costa Rica, San José, Costa Rica (WA-A)
| | - Ole Didrik Laerum
- The Finsen Laboratory, Rigshospitalet, Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Biotech Research and Innovation Center (BRIC), University of Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Department of Clinical Medicine, The Gade Laboratory for Pathology, University of Bergen, Bergen, Norway (ODL),Departments of Pathology, Haukeland University Hospital, Bergen, Norway (ODL)
| | - Ib J Christensen
- The Finsen Laboratory, Rigshospitalet, Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Biotech Research and Innovation Center (BRIC), University of Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI)
| | - Kjell Ovrebo
- Department of Surgical Sciences, University of Bergen, Bergen, Norway (KO),Surgery, Haukeland University Hospital, Bergen, Norway (KO, AS)
| | - Arne Skarstein
- Department of Clinical Medicine, University of Bergen, Bergen, Norway (AS),Surgery, Haukeland University Hospital, Bergen, Norway (KO, AS)
| | - Gunilla Høyer-Hansen
- The Finsen Laboratory, Rigshospitalet, Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Biotech Research and Innovation Center (BRIC), University of Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI)
| | - Michael Ploug
- The Finsen Laboratory, Rigshospitalet, Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Biotech Research and Innovation Center (BRIC), University of Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI)
| | - Martin Illemann
- The Finsen Laboratory, Rigshospitalet, Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI),Biotech Research and Innovation Center (BRIC), University of Copenhagen, Denmark (WA-A, ODL, IJC, GH-H, MP, MI)
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40
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Yang M, Qu Y, Shi R, Wu X, Su C, Hu Z, Chang Q, Liu S, Pan G, Lei M, Xie F, Tu S, Tao W, Zhou H, Hu G, Zhang Z. Ubiquitin-conjugating enzyme UbcH10 promotes gastric cancer growth and is a potential biomarker for gastric cancer. Oncol Rep 2016; 36:779-86. [PMID: 27349176 DOI: 10.3892/or.2016.4906] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 03/09/2016] [Indexed: 11/05/2022] Open
Abstract
Gastric cancer is a fatal disease and the availability of early diagnostic methods is limited. There is an urgent need to identify effective targets for early diagnosis and therapeutics. UbcH10 is a ubiquitin-conjugating enzyme with high expression in various types of cancers. In the present study, several gastric tumor cell lines with high or low expression of UbcH10 were exploited to study the role of UbcH10 in gastric cancer. Knockdown of UbcH10 expression using siRNA in gastric cancer cell lines with high expression of UbcH10 resulted in reduced proliferation, increased cisplatin-induced apoptosis and reduced serum-induced ERK, Akt and p38 phosphorylation signaling. In agreement, overexpression of UbcH10 in gastric cancer cell lines with low expression of UbcH10 led to enhanced cell proliferation and resistance to cisplatin-induced apoptosis. Most importantly, IHC analyses showed that the UbcH10 protein was expressed at a high level in most patient gastric cancer tissues, but was absent in adjacent mesenchyme tissues. These data suggest that UbcH10 may promote gastric cancer growth and can serve as a biomarker for diagnosis or as a target for novel therapeutics in gastric cancer.
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Affiliation(s)
- Mengxuan Yang
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Yingying Qu
- Shanghai ChemPartner Co., Ltd., Shanghai 201203, P.R. China
| | - Rongliang Shi
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Xubo Wu
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Chang Su
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Zhiqiu Hu
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Qimeng Chang
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Shaoqun Liu
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Gaofeng Pan
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Ming Lei
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
| | - Fubo Xie
- Shanghai ChemPartner Co., Ltd., Shanghai 201203, P.R. China
| | - Shiwei Tu
- Shanghai ChemPartner Co., Ltd., Shanghai 201203, P.R. China
| | - Weikang Tao
- Shanghai ChemPartner Co., Ltd., Shanghai 201203, P.R. China
| | - He Zhou
- Shanghai ChemPartner Co., Ltd., Shanghai 201203, P.R. China
| | - Gang Hu
- Shanghai ChemPartner Co., Ltd., Shanghai 201203, P.R. China
| | - Ziping Zhang
- Minhang Hospital, Fudan University, Shanghai 201199, P.R. China
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41
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Li B, Liu HY, Guo SH, Sun P, Gong FM, Jia BQ. Microsatellite instability of gastric cancer and precancerous lesions. Int J Clin Exp Med 2015; 8:21138-21144. [PMID: 26885046 PMCID: PMC4723891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 07/01/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate whether microsatellite instability (MSI) of gastric cancer and precancerous lesions were existed and its effect. METHODS Laser microdissection was used. Gastric, intestinal metaplasia, dysplasia and normal mucosa were collected respectively. Five microsatellite loci were selected and MSI was detected by denaturing high-performance liquid chromatography. RESULTS In the five microsatellite loci REF-positive phenotype, intestinal metaplasia MSI was 20.7%. Dysplasia MSI was 22.4%. Gastric MSI was 47.9%, and there was no MSI in normal gastric mucosa. CONCLUSION MSI gradually increased from precancerous lesions to gastric cancer. The early detection of MSI may be a potential early warning indicator for early diagnosis of gastric cancer.
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Affiliation(s)
- Bing Li
- Department of Surgical Oncology, General Hospital of The People's Liberation Army No. 28, Fuxing Road, Beijing 100853, P.R. China
| | - Hong-Yi Liu
- Department of Surgical Oncology, General Hospital of The People's Liberation Army No. 28, Fuxing Road, Beijing 100853, P.R. China
| | - Shao-Hua Guo
- Department of Surgical Oncology, General Hospital of The People's Liberation Army No. 28, Fuxing Road, Beijing 100853, P.R. China
| | - Peng Sun
- Department of Surgical Oncology, General Hospital of The People's Liberation Army No. 28, Fuxing Road, Beijing 100853, P.R. China
| | - Fang-Ming Gong
- Department of Surgical Oncology, General Hospital of The People's Liberation Army No. 28, Fuxing Road, Beijing 100853, P.R. China
| | - Bao-Qing Jia
- Department of Surgical Oncology, General Hospital of The People's Liberation Army No. 28, Fuxing Road, Beijing 100853, P.R. China
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Meng W, Gu T, Gao LM, Zong ZG, Meng L, Fu ZZ, Guo L. Correlation of cadherin-17 protein expression with clinicopathological features and prognosis of patients with sporadic gastric cancer. ACTA ACUST UNITED AC 2015; 48:1077-86. [PMID: 26421870 PMCID: PMC4661023 DOI: 10.1590/1414-431x20154645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 04/28/2015] [Indexed: 12/15/2022]
Abstract
This study aimed to explore the correlations between cadherin-17 (CDH17) protein expression and the clinicopathological features and prognosis of patients with sporadic gastric cancer (GC). Nine relevant studies of 1,960 patients were identified using electronic database searches supplemented with a manual search in strict accordance with inclusion and exclusion criteria. Statistical analyses were conducted using STATA 12.0 statistical software. Relative risks and 95% confidence intervals were determined, and Z test was used to measure the significance of the overall effect size. A total of nine eligible cohort studies were included in this meta-analysis. The expression of CDH17 in patients with diffuse GC was significantly higher than in those with intestinal-type GC. Moreover, the tumor depth of invasion differed significantly between patients with positive CDH17 (CDH17+) and negative CDH17 (CDH17-) GC. However, there were no significant differences between CDH17+ and CDH17- GC patients with respect to tumor node metastasis clinical stages, histological grades, or lymph node metastasis. Despite the differences in invasive depth, there was no significant difference in 5-year survival rates between CDH17+ and CDH17- GC patients. Our meta-analysis provides evidence that CDH17 protein expression may be associated with the development of GC, suggesting that CDH17 is an important biomarker that could be useful for the early diagnosis of GC. However, CDH17 levels do not appear to impact overall survival.
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Affiliation(s)
- W Meng
- First Affiliated Hospital, Hebei North University, Zhangjiakou, Hebei Province, China
| | - T Gu
- Department of Medical Oncology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei Province, China
| | - L M Gao
- Department of Medical Oncology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei Province, China
| | - Z G Zong
- First Affiliated Hospital, Hebei North University, Zhangjiakou, Hebei Province, China
| | - L Meng
- Department of Anesthesiology, Guilin Medical University, Guilin, Guangxi Province, China
| | - Z Z Fu
- Department of Medical Oncology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei Province, China
| | - L Guo
- School of Medicine, Nanjing University, Nanjing, Jiangsu Province, China
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Yan Y, Shen Z, Gao Z, Cao J, Yang Y, Wang B, Shen C, Mao S, Jiang K, Ye Y, Wang S. Long noncoding ribonucleic acid specific for distant metastasis of gastric cancer is associated with TRIM16 expression and facilitates tumor cell invasion in vitro. J Gastroenterol Hepatol 2015; 30:1367-75. [PMID: 25866896 DOI: 10.1111/jgh.12976] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/25/2015] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIM Increasing evidence has indicated that long noncoding ribonucleic acids (lncRNAs) play a major role in cancers. Although certain lncRNAs has been reported to play a role in gastric cancer (GC), specific lncRNAs involved in distant metastasis of GC remain unknown. METHODS Differentially expressed mRNAs and lncRNAs between stage IV and non-stage IV GC were obtained by microarray. Gene ontology and pathway analysis were used to study functions of differential mRNAs. Algorithms were used to predict potential gene targets of cis or trans-acting lncRNAs. Network analysis was performed to analyze each pair of gene-lncRNA, gene-gene, or lncRNA-lncRNA interactions. Expression of lncRNA special for distant metastasis of GC (SDMGC) and target gene TRIM16 were tested in GC tissues and cell lines. RNAi and overexpression were used to observe the biological functions of SDMGC and TRIM16 on GC cells. RESULTS 502 mRNAs and 440 lncRNAs were found to be differentially expressed. 74 gene ontology terms and 38 pathways were associated with the dysregulated transcripts. Fourteen core factors were determined by network analysis. Expression of SDMGC and TRIM16 was upregulated in the distant metastasis tissues, compared with primary GC tissues, which were positive correlation. Silencing of SDMGC or TRIM16 was demonstrated to decrease cell invasion and migration, while upregulated of SDMGC or TRIM16 could promote cell invasion and migration. However, little effect on proliferation, cell cycle, colony formation, and apoptosis was found. CONCLUSIONS SDMGC is obviously upregulated in stage IV GC and may represent a new marker and therapeutic target for GC treatment.
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Affiliation(s)
- Yichao Yan
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Zhanlong Shen
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Zhidong Gao
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Jian Cao
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Yang Yang
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Bo Wang
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Chao Shen
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Shuqiang Mao
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Kewei Jiang
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Yingjiang Ye
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
| | - Shan Wang
- Departments of Gastroenterological Surgery and Surgical Oncology, Peking University People's Hospital, Beijing, China
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44
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Farid SG, Morris-Stiff G. "OMICS" technologies and their role in foregut primary malignancies. Curr Probl Surg 2015; 52:409-41. [PMID: 26527526 DOI: 10.1067/j.cpsurg.2015.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 08/03/2015] [Indexed: 12/18/2022]
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45
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Xiao K, Yu Z, Shi DT, Lei Z, Chen H, Cao J, Tian W, Chen W, Zhang HT. Inactivation of BLU is associated with methylation of Sp1-binding site of BLU promoter in gastric cancer. Int J Oncol 2015; 47:621-31. [PMID: 26043875 DOI: 10.3892/ijo.2015.3032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 04/23/2015] [Indexed: 11/06/2022] Open
Abstract
BLU is a candidate tumor suppressor gene, which is epigenetically inactivated in many human malignancies. However, the expression and biological functions of BLU in gastric cancer has not yet been reported. In the present study, we identified a functional BLU promoter which was regulated by the transcription activator Sp1. Bisulfite sequencing and qRT-PCR assays indicated that the silence of BLU expression in gastric cancer was significantly associated with DNA hypermethylation of BLU promoter including -39 CpG site located in the Sp1 transcription element. The expression of BLU was notably restored in AGS and SGC7901 cells following the demethylation-treatment with 5'-Aza-2'-deoxycytidine. Moreover, the results from ChIP, EMSA and luciferase reporter gene showed that -39 CpG methylation could prevent Sp1 from binding to the promoter of BLU and decreased transcription activity of the BLU gene by ~70%. In addition, knockdown of BLU significantly promoted cellular proliferation and colony formation in gastric cancer cells. In conclusion, we identified a novel functional BLU promoter and proved that BLU promoter activity was regulated by Sp1. Furthermore, we found that hypermethylated -39 CpG in BLU proximal promoter directly reduced its binding with Sp1, which may be one of the mechanisms accounting for the inactivation of BLU in gastric cancer.
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Affiliation(s)
- Kunting Xiao
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou 215006, P.R. China
| | - Zhuwen Yu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou 215006, P.R. China
| | - Dong-Tao Shi
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou 215006, P.R. China
| | - Zhe Lei
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou 215123, P.R. China
| | - Hongbing Chen
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou 215123, P.R. China
| | - Jian Cao
- Department of Gastroenterology, The Affiliated Suzhou Municipal Hospital (Main Campus), Suzhou 215004, P.R. China
| | - Wenyan Tian
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou 215006, P.R. China
| | - Weichang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou 215006, P.R. China
| | - Hong-Tao Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou 215123, P.R. China
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46
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Cheng X, Zheng Z, Bu Z, Wu X, Zhang L, Xing X, Wang X, Hu Y, Du H, Li L, Li S, Zhou R, Wen XZ, Ji JF. LAPTM4B-35, a cancer-related gene, is associated with poor prognosis in TNM stages I-III gastric cancer patients. PLoS One 2015; 10:e0121559. [PMID: 25849595 PMCID: PMC4388692 DOI: 10.1371/journal.pone.0121559] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 02/12/2015] [Indexed: 12/26/2022] Open
Abstract
Background Lysosome-associated transmembrane protein 4β-35 (LAPTM4B-35), a member of the mammalian 4-tetratransmembrane spanning protein superfamily, has been reported to be overexpressed in several cancers. However the expression of LAPTM4B-35 and its role in the progression of gastric cancer (GC) remains unknown. The aim of this study was to investigate LAPTM4B-35 expression in GC, its potential relevance to clinicopathologic parameters and role of LAPTM4B-35 during gastric carcinogenesis. Methods In the present study, paraffin-embedded specimens with GC (n = 240, including 180 paired specimens) and 24 paired fresh frozen tissues were analyzed. qRT-PCR and immunohistochemistry (IHC) were used to analyze the expression of LAPTM4B-35 in GC. The effects of LAPTM4B-35 on GC cell proliferation, migration and invasion were determined by overexpression and knockdown assays. Results IHC showed that LAPTM4B-35 was expressed in 68.3% (123/180) of GC tissues, while in 16.1% (29/180) of their paired adjacent noncancerous gastric tissues (P = 0.000). LAPTM4B-35 mRNA levels in GC tissues were also significantly elevated when compared with their paired adjacent noncancerous tissues (P = 0.017). Overexpression of LAPTM4B-35 was significantly associated with degree of differentiation, depth of invasion, lymphovascular invasion and lymph node metastasis (P<0.05). Kaplan-Meier survival curves revealed that patients with LAPTM4B-35 expression had a significant decrease in overall survival (OS) in stages I-III GC patients (P = 0.006). Multivariate analysis showed high expression of LAPTM4B-35 was an independent prognostic factor for OS in stage I-III GC patients (P = 0.025). Conclusion These findings indicate that LAPTM4B-35 overexpression may be related to GC progression and poor prognosis, and thus may serve as a new prediction marker of prognosis in GC patients.
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Affiliation(s)
- Xiaojing Cheng
- Gastrointestinal Carcinoma Translational Research Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Zhixue Zheng
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Zhaode Bu
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiaojiang Wu
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Lianhai Zhang
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiaofang Xing
- Gastrointestinal Carcinoma Translational Research Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiaohong Wang
- Biological Tissue Bank, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Ying Hu
- Biological Tissue Bank, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Hong Du
- Gastrointestinal Carcinoma Translational Research Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Lin Li
- Gastrointestinal Carcinoma Translational Research Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Shen Li
- Gastrointestinal Carcinoma Translational Research Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Rouli Zhou
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Xian-Zi Wen
- Gastrointestinal Carcinoma Translational Research Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
- * E-mail: (XZW); (JFJ)
| | - Jia-Fu Ji
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
- * E-mail: (XZW); (JFJ)
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Qi P, Xu MD, Shen XH, Ni SJ, Huang D, Tan C, Weng WW, Sheng WQ, Zhou XY, Du X. Reciprocal repression between TUSC7 and miR-23b in gastric cancer. Int J Cancer 2015; 137:1269-78. [PMID: 25765901 DOI: 10.1002/ijc.29516] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 02/16/2015] [Accepted: 03/04/2015] [Indexed: 12/14/2022]
Abstract
Recently, long noncoding RNAs (lncRNAs) were demonstrated to play important regulatory roles in biological processes and cancer biology. However, the overall pathophysiological contribution of lncRNAs to gastric cancer (GC) remains largely unknown. In this study, differentially expressed lncRNAs in GC and paired adjacent normal tissue samples were identified by microarray and were validated using quantitative real-time polymerase chain reaction (qRT-PCR). One particular lncRNA, tumour suppressor candidate 7 (TUSC7), was analyzed in sequential large cohorts, and the Kaplan-Meier method with the log-rank test for comparisons was used to analyse the survival data. The results indicated that TUSC7 was downregulated in GC samples and was an independent prognostic indicator of disease-free survival (DFS) and disease-specific survival (DSS) in GC patients. Applying loss-of-function and gain-of-function approaches, we determined that TUSC7 suppressed tumour cell growth in vitro and in vivo. Furthermore, we showed that TUSC7 was a direct transcriptional target of p53 via interaction of p53 with the putative p53-response element in the upstream region of TUSC7. Finally, we demonstrated reciprocal repression between TUSC7 and miR-23b; in contrast to TUSC7, miR-23b promoted cell growth. The results indicated that TUSC7 is a p53-regulated tumour suppressor that acts in part by repressing miR-23b and that TUSC7 may be a key regulatory hub in GC.
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Affiliation(s)
- Peng Qi
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Mi-die Xu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Xiao-Han Shen
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Shu-Juan Ni
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Dan Huang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Cong Tan
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Wei-Wei Weng
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Wei-Qi Sheng
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Xiao-Yan Zhou
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Xiang Du
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
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48
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Chang L, Guo F, Huo B, Lv Y, Wang Y, Liu W. Expression and clinical significance of the microRNA-200 family in gastric cancer. Oncol Lett 2015; 9:2317-2324. [PMID: 26137064 DOI: 10.3892/ol.2015.3028] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Accepted: 02/10/2015] [Indexed: 01/07/2023] Open
Abstract
Gastric cancer is one of the most common malignant tumors and one of the leading causes of cancer-related mortality. Recent studies have revealed that there is a difference in microRNA (miR/miRNA) profiles between cancerous and normal tissues. To find a potentially useful prognostic predictor and a promising therapeutic tool for gastric cancer, the present study investigated the expression and clinical significance of the miR-200 family in gastric cancer. The miR-200 family has five members: hsa-miR-200a, hsa-miR-200b, hsa-miR-200c, hsa-miR-141 and hsa-miR-429. In 46 clinical samples of gastric cancer and paired non-cancerous tissues, the present study observed that the expression levels of the miR-200 family in the cancer tissues were significantly lower than those in the non-cancerous tissues (P<0.001). Lower levels of the five family members were associated with histological grade and the presence of an intravascular cancer embolus (P<0.05). The results revealed that the miR-200 family is downregulated in gastric cancer, and that there are significant differences in the expression of the miR-200 family between normal and cancer tissues. The miR-200 family may therefore become a potentially useful prognostic predictor of the aggressiveness of gastric cancer and a possible therapeutic tool in affected patients.
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Affiliation(s)
- Liang Chang
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Fengjie Guo
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300000, P.R. China
| | - Bingjie Huo
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Yalei Lv
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Yudong Wang
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Wei Liu
- Department of Medical Oncology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
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Mizrahi I, Mazeh H, Grinbaum R, Beglaibter N, Wilschanski M, Pavlov V, Adileh M, Stojadinovic A, Avital I, Gure AO, Halle D, Nissan A. Colon Cancer Associated Transcript-1 (CCAT1) Expression in Adenocarcinoma of the Stomach. J Cancer 2015; 6:105-10. [PMID: 25561974 PMCID: PMC4280392 DOI: 10.7150/jca.10568] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 10/15/2014] [Indexed: 12/17/2022] Open
Abstract
Background: Long non-coding RNAs (lncRNAs) have been shown to have functional roles in cancer biology and are dys-regulated in many tumors. Colon Cancer Associated Transcript -1 (CCAT1) is a lncRNA, previously shown to be significantly up-regulated in colon cancer. The aim of this study is to determine expression levels of CCAT1 in gastric carcinoma (GC). Methods: Tissue samples were obtained from patients undergoing resection for gastric carcinoma (n=19). For each patient, tumor tissue and normal appearing gastric mucosa were taken. Normal gastric tissues obtained from morbidly obese patients, undergoing laparoscopic sleeve gastrectomy served as normal controls (n=19). A human gastric carcinoma cell line (AGS) served as positive control. RNA was extracted from all tissue samples and CCAT1 expression was analyzed using quantitative real time-PCR (qRT-PCR). Results: Low expression of CCAT1 was identified in normal gastric mucosa samples obtained from morbidly obese patients [mean Relative Quantity (RQ) = 1.95±0.4]. AGS human gastric carcinoma cell line showed an elevated level of CCAT1 expression (RQ=8.02). Expression levels of CCAT1 were approximately 10.8 fold higher in GC samples than in samples taken from the negative control group (RQ=21.1±5 vs. RQ=1.95±0.4, respectively, p<0.001). Interestingly, CCAT1 expression was significantly overexpressed in adjacent normal tissues when compared to the negative control group (RQ = 15.25±2 vs. RQ=1.95±0.4, respectively, p<0.001). Tissues obtained from recurrent GC cases showed the highest expression levels (RQ = 88.8±31; p<0.001). Expression levels increased with tumor stage (T4- 36.4±15, T3- 16.1±6, T2- 4.7±1), however this did not reach statistical significance (p=0.2). There was no difference in CCAT1 expression between intestinal and diffuse type GC (RQ=22.4±7 vs. 22.4±16, respectively, p=0.9). Within the normal gastric tissue samples, no significant difference in CCAT1 expression was observed in helicobacter pylori negative and positive patients (RQ= 2.4±0.9 vs. 0.93±0.2, respectively, p=0.13). Conclusion: CCAT1 is up-regulated in gastric cancer, and may serve as a potential bio-marker for early detection and surveillance.
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Affiliation(s)
- Ido Mizrahi
- 1. Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
| | - Haggi Mazeh
- 1. Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
| | - Ronit Grinbaum
- 1. Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
| | - Nahum Beglaibter
- 1. Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
| | - Michael Wilschanski
- 2. The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
| | - Vera Pavlov
- 2. The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
| | - Muchamad Adileh
- 3. Department of Surgery, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem, Israel
| | | | | | - Ali Osmay Gure
- 5. Department of Molecular Biology and Genetics, Bilkent University, Ankara, Turkey
| | - David Halle
- 2. The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel
| | - Aviram Nissan
- 2. The Surgical Oncology Laboratory, Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem, Israel; ; 3. Department of Surgery, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem, Israel
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50
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Shigeyasu K, Nagasaka T, Mori Y, Yokomichi N, Kawai T, Fuji T, Kimura K, Umeda Y, Kagawa S, Goel A, Fujiwara T. Clinical Significance of MLH1 Methylation and CpG Island Methylator Phenotype as Prognostic Markers in Patients with Gastric Cancer. PLoS One 2015; 10:e0130409. [PMID: 26121593 PMCID: PMC4488282 DOI: 10.1371/journal.pone.0130409] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 05/20/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND To improve the outcome of patients suffering from gastric cancer, a better understanding of underlying genetic and epigenetic events in this malignancy is required. Although CpG island methylator phenotype (CIMP) and microsatellite instability (MSI) have been shown to play pivotal roles in gastric cancer pathogenesis, the clinical significance of these events on survival outcomes in patients with gastric cancer remains unknown. METHODS This study included a patient cohort with pathologically confirmed gastric cancer who had surgical resections. A cohort of 68 gastric cancers was analyzed. CIMP and MSI statuses were determined by analyzing promoter CpG island methylation status of 28 genes/loci, and genomic instability at 10 microsatellite markers, respectively. A Cox's proportional hazards model was performed for multivariate analysis including age, stage, tumor differentiation, KRAS mutation status, and combined CIMP/MLH1 methylation status in relation to overall survival (OS). RESULTS By multivariate analysis, longer OS was significantly correlated with lower pathologic stage (P = 0.0088), better tumor differentiation (P = 0.0267) and CIMP-high and MLH1 3' methylated status (P = 0.0312). Stratification of CIMP status with regards to MLH1 methylation status further enabled prediction of gastric cancer prognosis. CONCLUSIONS CIMP and/or MLH1 methylation status may have a potential to be prognostic biomarkers for patients with gastric cancer.
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Affiliation(s)
- Kunitoshi Shigeyasu
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
- Center for Epigenetics, Cancer Prevention and Cancer Genomics, Baylor Research Institute and Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, Texas, United States of America
| | - Takeshi Nagasaka
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
- * E-mail: (TN); (AG)
| | - Yoshiko Mori
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Naosuke Yokomichi
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Takashi Kawai
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Tomokazu Fuji
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Keisuke Kimura
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Yuzo Umeda
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Shunsuke Kagawa
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
| | - Ajay Goel
- Center for Epigenetics, Cancer Prevention and Cancer Genomics, Baylor Research Institute and Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, Texas, United States of America
- * E-mail: (TN); (AG)
| | - Toshiyoshi Fujiwara
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
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