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Joo S, Fang S. Bile Acids and Gastric Intestinal Metaplasia: Exploring a New Feedback Loop. Gut Liver 2024; 18:365-367. [PMID: 38742404 PMCID: PMC11096909 DOI: 10.5009/gnl240187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/16/2024] Open
Affiliation(s)
- Seyeon Joo
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
| | - Sungsoon Fang
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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2
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Kumar AA, T P, Ragunathan P, Ponnuraj K. Analyzing the interaction of Helicobacter pylori GAPDH with host molecules and hemin: Inhibition of hemin binding. Biophys Chem 2024; 307:107193. [PMID: 38320409 DOI: 10.1016/j.bpc.2024.107193] [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: 10/23/2023] [Revised: 01/02/2024] [Accepted: 01/25/2024] [Indexed: 02/08/2024]
Abstract
Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) is a moonlighting enzyme. Apart from its primary role in the glycolytic pathway, in many bacterial species it is found in the extracellular milieu and also on the bacterial surface. Positioning on the bacterial surface allows the GAPDH molecule to interact with many host molecules such as plasminogen, fibrinogen, fibronectin, laminin and mucin etc. This facilitates the bacterial colonization of the host. Helicobacter pylori is a major human pathogen that causes a number of gastrointestinal infections and is the main cause of gastric cancer. The binding analysis of H. pylori GAPDH (HpGAPDH) with host molecules has not been carried out. Hence, we studied the interaction of HpGAPDH with holo-transferrin, lactoferrin, haemoglobin, fibrinogen, fibronectin, catalase, plasminogen and mucin using biolayer interferometry. Highest and lowest binding affinity was observed with lactoferrin (4.83 ± 0.70 × 10-9 M) and holo-transferrin (4.27 ± 2.39 × 10-5 M). Previous studies established GAPDH as a heme chaperone involved in intracellular heme trafficking and delivery to downstream target proteins. Therefore, to get insights into heme binding, the interaction between HpGAPDH and hemin was analyzed. Hemin binds to HpGAPDH with an affinity of 2.10 μM while the hemin bound HpGAPDH does not exhibit activity. This suggests that hemin most likely binds at the active site of HpGAPDH, prohibiting substrate binding. Blind docking of hemin with HpGAPDH also supports positioning of hemin at the active site. Metal ions were found to inhibit the activity of HpGAPDH, suggesting that it also possibly occupies the substrate binding site. Furthermore, with metal-bound HpGAPDH, hemin binding was not observed, suggesting metal ions act as an inhibitor of hemin binding. Since GAPDH has been identified as a heme chaperone, it will be interesting to analyse the biological consequences of inhibition of heme binding to GAPDH by metal ions.
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Affiliation(s)
- Ane Anil Kumar
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
| | - Priyadharshini T
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
| | - Preethi Ragunathan
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
| | - Karthe Ponnuraj
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
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3
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Mostaghimi T, Bahadoran E, Bakht M, Taheri S, Sadeghi H, Babaei A. Role of lncRNAs in Helicobacter pylori and Epstein-Barr virus associated gastric cancers. Life Sci 2024; 336:122316. [PMID: 38035995 DOI: 10.1016/j.lfs.2023.122316] [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: 09/30/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023]
Abstract
Helicobacter pylori infection is a risk factor for the development of gastric cancer (GC), and the role of co-infection with viruses, such as Epstein-Barr virus, in carcinogenesis cannot be ignored. Furthermore, it is now known that genetic factors such as long non-coding RNAs (lncRNAs) are involved in many diseases, including GC. On the other side, they can also be used as therapeutic goals. Modified lncRNAs can cause aberrant expression of genes encoding proximal proteins, which are essential for the development of carcinoma. In this review, we present the most recent studies on lncRNAs in GC, concentrating on their roles in H. pylori and EBV infections, and discuss some of the molecular mechanisms of these GC-related pathogens. There was also a discussion of the research gaps and future perspectives.
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Affiliation(s)
- Talieh Mostaghimi
- Department of Medical Microbiology and Biotechnology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Ensiyeh Bahadoran
- School of Medicine, Qazvin University of Medical Science, Qazvin, Iran
| | - Mehdi Bakht
- Medical Microbiology Research Center, Qazvin University of Medical Science, Qazvin, Iran
| | - Shiva Taheri
- Medical Microbiology Research Center, Qazvin University of Medical Science, Qazvin, Iran
| | - Hamid Sadeghi
- Medical Microbiology Research Center, Qazvin University of Medical Science, Qazvin, Iran
| | - Abouzar Babaei
- Medical Microbiology Research Center, Qazvin University of Medical Science, Qazvin, Iran.
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4
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Roshani M, Rezaian-Isfahni A, Lotfalizadeh MH, Khassafi N, Abadi MHJN, Nejati M. Metal nanoparticles as a potential technique for the diagnosis and treatment of gastrointestinal cancer: a comprehensive review. Cancer Cell Int 2023; 23:280. [PMID: 37981671 PMCID: PMC10657605 DOI: 10.1186/s12935-023-03115-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 10/27/2023] [Indexed: 11/21/2023] Open
Abstract
Gastrointestinal (GI) cancer is a major health problem worldwide, and current diagnostic and therapeutic approaches are often inadequate. Various metallic nanoparticles (MNPs) have been widely studied for several biomedical applications, including cancer. They may potentially overcome the challenges associated with conventional chemotherapy and significantly impact the overall survival of GI cancer patients. Functionalized MNPs with targeted ligands provide more efficient localization of tumor energy deposition, better solubility and stability, and specific targeting properties. In addition to enhanced therapeutic efficacy, MNPs are also a diagnostic tool for molecular imaging of malignant lesions, enabling non-invasive imaging or detection of tumor-specific or tumor-associated antigens. MNP-based therapeutic systems enable simultaneous stability and solubility of encapsulated drugs and regulate the delivery of therapeutic agents directly to tumor cells, which improves therapeutic efficacy and minimizes drug toxicity and leakage into normal cells. However, metal nanoparticles have been shown to have a cytotoxic effect on cells in vitro. This can be a concern when using metal nanoparticles for cancer treatment, as they may also kill healthy cells in addition to cancer cells. In this review, we provide an overview of the current state of the field, including preparation methods of MNPs, clinical applications, and advances in their use in targeted GI cancer therapy, as well as the advantages and limitations of using metal nanoparticles for the diagnosis and treatment of gastrointestinal cancer such as potential toxicity. We also discuss potential future directions and areas for further research, including the development of novel MNP-based approaches and the optimization of existing approaches.
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Affiliation(s)
- Mohammad Roshani
- Internal Medicine and Gastroenterology, Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Arya Rezaian-Isfahni
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Negar Khassafi
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Hassan Jafari Najaf Abadi
- Research Center for Health Technology Assessment and Medical Informatics, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Majid Nejati
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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5
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Nguyen NLT, Dang NDT, Vu QVAN, Dang AK, Ta TVAN. A Model for Gastric Cancer Risk Prediction Based on MUC1 Polymorphisms and Health-risk Behaviors in a Vietnamese Population. In Vivo 2023; 37:2347-2356. [PMID: 37652501 PMCID: PMC10500499 DOI: 10.21873/invivo.13339] [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: 06/03/2023] [Revised: 07/02/2023] [Accepted: 07/05/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND/AIM Although the expression of mucin 1(MUC1) and prostate stem cell antigen (PSCA) genes is correlated with gastric cancer development and progression, the utility of these two genes as biomarkers of gastric cancer prognosis still needs to be confirmed in clinical practice. This study aimed to develop a model predictive of gastric cancer that integrates several significant single nucleotide polymorphisms (SNPs) of MUC1 and PSCA genes, and some health-risk behavior factors in a Vietnamese population. PATIENTS AND METHODS A total of 302 patients with primary gastric carcinoma and 304 healthy persons were included in a case-control study. The generalized linear model was used with the profile of age, sex, history of smoking and using alcohol, personal and family medical history of stomach diseases, and the SNPs of MUC1 and PSCA. The prognostic value of the model was assessed by the area under a receiver operating characteristic curve (AUC) and Akaike Information Criterion (AIC) values. RESULTS In male participants, the final model, consisting of age, sex, history of smoking and using alcohol, personal and family medical history of stomach diseases and SNP MUC1 rs4072037, provided acceptable discrimination, with an AUC of 0.6374 and the lowest AIC value (539.53). In female participants, the predictive model including age, sex, history of smoking and using alcohol, personal and family medical history of stomach diseases, SNPs MUC1 rs4072037 and rs2070803 had an AUC of 0.6937 and AIC of 266.80. The calibration plots of the male model approximately fitted the ideal calibration line. CONCLUSION The predictive model based on age, sex, medical history, and genetic and health-risk behavior factors has a high potential in determining gastric cancer. Further studies that elucidate other genetic variants should be carried out to define high-risk gastric cancer groups and propose appropriate personalized prevention.
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Affiliation(s)
| | - Ngoc Dung Thi Dang
- Hanoi Medical University Hospital, Hanoi Medical University, Hanoi, Vietnam;
| | - Quy VAN Vu
- Hanoi Medical University Hospital, Hanoi Medical University, Hanoi, Vietnam
| | - Anh Kim Dang
- School of Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam
| | - Thanh-VAN Ta
- Hanoi Medical University Hospital, Hanoi Medical University, Hanoi, Vietnam;
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6
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Sun A, Tian X, Chen Y, Yang W, Lin Q. Emerging roles of the HECT E3 ubiquitin ligases in gastric cancer. Pathol Oncol Res 2023; 29:1610931. [PMID: 36825281 PMCID: PMC9941164 DOI: 10.3389/pore.2023.1610931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/16/2023] [Indexed: 02/09/2023]
Abstract
Gastric cancer (GC) is one of the most pernicious gastrointestinal tumors with extraordinarily high incidence and mortality. Ubiquitination modification of cellular signaling proteins has been shown to play important roles in GC tumorigenesis, progression, and prognosis. The E3 ubiquitin ligase is the crucial enzyme in the ubiquitination reaction and determines the specificity of ubiquitination substrates, and thus, the cellular effects. The HECT E3 ligases are the second largest E3 ubiquitin ligase family characterized by containing a HECT domain that has E3 ubiquitin ligase activity. The HECT E3 ubiquitin ligases have been found to engage in GC progression. However, whether HECT E3 ligases function as tumor promoters or tumor suppressors in GC remains controversial. In this review, we will focus on recent discoveries about the role of the HECT E3 ubiquitin ligases, especially members of the NEDD4 and other HECT E3 ligase subfamilies, in GC.
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Affiliation(s)
- Aiqin Sun
- School of Medicine, Jiangsu University, Zhenjiang, China,Department of laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China,*Correspondence: Aiqin Sun, ; Qiong Lin,
| | - Xianyan Tian
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Yifei Chen
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Wannian Yang
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Qiong Lin
- School of Medicine, Jiangsu University, Zhenjiang, China,*Correspondence: Aiqin Sun, ; Qiong Lin,
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7
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Lu Y, Meng Q, Bai L, Wang R, Sun Y, Li J, Fan J, Tian T. LINC00858 stabilizes RAN expression and promotes metastasis of gastric cancer. Biol Direct 2022; 17:41. [PMID: 36528654 PMCID: PMC9759904 DOI: 10.1186/s13062-022-00355-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Metastasis constitutes one of the major causes of tumor-related death in gastric cancer (GC), and understanding key events in the initiation of this phenotypic switch may provide therapeutic opportunities. Long noncoding RNAs (lncRNAs) are emerging as molecules that play vital roles in tumorigenesis and metastasis. In this study, we aimed to identify metastasis-related lncRNAs in the context of GC. The lncRNAs overexpressed in tumor tissues and positively associated with overall survival were screened out using the TCGA database. qPCR assays in clinical samples showed that LINC00858 was significantly upregulated in GC tissues compared with normal counterparts. Functional analysis suggested that LINC00858 depletion attenuated the migration, and invasion of cancer cells in vitro and suppressed the metastasis of xenografted tumors in vivo. Mechanistically, LINC00858 could interact with the metastasis-associated RAN and stabilize its protein expression by decreasing posttranslational ubiquitination. The transcription factor YY1 could bind to the promoter of LINC00858 to upregulate its expression in GC cells. Moreover, overexpression of YY1 and RAN was positively associated with upregulation of LINC00858 in GC tissues. Our results suggest that LINC00858 might play a role in GC metastasis, and be a diagnostic biomarker and potential therapeutic target.
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Affiliation(s)
- Yunxin Lu
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Qi Meng
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Long Bai
- grid.488530.20000 0004 1803 6191State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060 China
| | - Ruobing Wang
- grid.258164.c0000 0004 1790 3548Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, 510632 China
| | - Yong Sun
- grid.258164.c0000 0004 1790 3548Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, 510632 China
| | - Jiaqi Li
- grid.258164.c0000 0004 1790 3548Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, 510632 China
| | - Jun Fan
- grid.258164.c0000 0004 1790 3548Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, 510632 China
| | - Tian Tian
- grid.258164.c0000 0004 1790 3548Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, 510632 China
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8
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Spagnol LW, Polettini J, Silveira DA, Wegner GRM, Paiva DFF. P16 gene promoter methylation is associated with oncogenesis and progression of gastric carcinomas: A systematic review and meta-analysis. Crit Rev Oncol Hematol 2022; 180:103843. [DOI: 10.1016/j.critrevonc.2022.103843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/02/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
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9
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Wang Y, Cao Y, Lebwohl B, Song M, Sun Q, Green PHR, Giovannucci EL, Willett WC, Chan AT. Gluten Intake and Risk of Digestive System Cancers in 3 Large Prospective Cohort Studies. Clin Gastroenterol Hepatol 2022; 20:1986-1996.e11. [PMID: 34800737 PMCID: PMC9110553 DOI: 10.1016/j.cgh.2021.11.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/02/2021] [Accepted: 11/10/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS In patients with celiac disease, gluten triggers an immune reaction that damages small intestinal villi and may increase long-term risk of gastrointestinal cancer. However, the health impacts of gluten in the general population are understudied. We aimed to examine the association between gluten intake and risk of digestive system cancers among individuals without celiac disease. METHODS We leveraged longitudinal data from 3 prospective cohorts, the Nurses' Health Study (1984-2018, 73,166 women aged 65.1 ± 10.8 years), Nurses' Health Study II (1991-2017, 90,423 women aged 49.1 ± 8.2 years), and Health Professionals Follow-Up Study (1986-2016, 42,617 men aged 64.8 ± 10.8 years). Using Cox proportional hazards regression, we estimated hazard ratios and 95% confidence intervals of digestive system cancers according to quintiles of gluten intake assessed from food frequency questionnaires. RESULTS During 4,801,513 person-years of follow-up, we documented 6231 incident digestive system cancer cases among 3 cohorts. After adjusting for a wide-range of risk factors, including body mass index, physical activity, diet quality, gluten intake was not associated with an increased risk of digestive system cancer, with a hazard ratio of 0.94 (95% confidence interval, 0.87-1.02) comparing the highest with the lowest quintile of gluten intake (P trend = .05). Similar null associations were found for individual digestive system cancers: oral cavity and oropharyngeal cancer, esophageal cancer, stomach cancer, small intestine cancer, colorectal cancer, pancreatic cancer, gallbladder cancer, and liver cancer. CONCLUSIONS Gluten intake was not associated with risk of digestive system cancers in adults without celiac disease. Restricting dietary gluten is unlikely to be beneficial to the prevention of digestive system cancers in the general population.
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Affiliation(s)
- Yiqing Wang
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Yin Cao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Division of Gastroenterology, Department of Medicine, Washington University School of Medicine in St Louis, St Louis, Missouri; Alvin J. Siteman Cancer Center, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Benjamin Lebwohl
- Celiac Disease Center, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
| | - Mingyang Song
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Qi Sun
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Peter H R Green
- Celiac Disease Center, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Edward L Giovannucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Walter C Willett
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Andrew T Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
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10
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Zhou H, Li F, Li Y. Anti-Cancer Activity of Gedunin by Induction of Apoptosis in Human Gastric Cancer AGS Cells. Appl Biochem Biotechnol 2022; 194:5322-5332. [PMID: 35759172 DOI: 10.1007/s12010-022-04001-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2022] [Indexed: 11/02/2022]
Abstract
Currently, gastric cancer is considered one of the major causes of high mortality and morbidity worldwide. Recent advances in therapeutics, clinical treatment, staging procedures, and imaging techniques are high, yet the prevalence of gastric cancer has not been reduced. Usage of the synthetic drug has many side effects that can lead to other ailments. Gedunin, a phytochemical derived from Azadirachta indica (neem tree), exhibits several pharmacological activities including antitumor, anti-inflammatory, antiulcer, antipyretics, antibacterial, antifungal, anti-diabetic, and antimalarial properties. In the current investigation, the effect of gedunin on the cell viability; reactive oxygen species (ROS) generation by DCFH-DA staining; mitochondrial membrane potential (MMP) by Rh-123 staining; apoptosis by AO/EtBr staining; cell migration and wound healing ability by wound scratch assay; and Bcl-2, Bax, caspase-3, and caspase-9 by ELISA techniques were analyzed in the AGS cells. The treatment with gedunin effectively inhibited the cell viability with IC50 = 20µM, increased the ROS generation, and triggered the apoptosis in AGS cells. The gedunin-treated AGS cells also demonstrated a decreased MMP status. The increment in the ROS generation leads to oxidative stress which in turn induce the apoptosis. The activity of Bax gene was upregulated and the activity of Bcl-2 gene was down-regulated in the AGS cells after the treatment with gedunin. In the AGS cells treated with gedunin, the caspase-3 and caspase-9 activities were increased. In overall, these findings suggested that gedunin can be used as a potent chemotherapeutic agent in the future to treat gastric cancer.
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Affiliation(s)
- Heying Zhou
- Department of General Surgery, Jiyang District People's Hospital, No. 17, Xinyuan Road, Jiyang District, 251400, Ji Nan City, China
| | - Fengxia Li
- College of Health, Binzhou Polytechnic, No. 919, Huanghe 12th Road, 256603, Binzhou City, China
| | - Yanli Li
- College of Health, Binzhou Polytechnic, No. 919, Huanghe 12th Road, 256603, Binzhou City, China.
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11
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Pliakou E, Lampropoulou D, Nasi D, Aravantinos G. Skin metastases from gastric cancer, a rare entity masquerading as erysipelas: A case report. Mol Clin Oncol 2022; 16:110. [DOI: 10.3892/mco.2022.2543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/06/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Evangelia Pliakou
- Second Department of Medical Oncology, General Oncology Hospital of Kifissia ‘Agioi Anargiroi’, Athens 14564, Greece
| | - Dimitra Lampropoulou
- Second Department of Medical Oncology, General Oncology Hospital of Kifissia ‘Agioi Anargiroi’, Athens 14564, Greece
| | - Despoina Nasi
- Second Department of Medical Oncology, General Oncology Hospital of Kifissia ‘Agioi Anargiroi’, Athens 14564, Greece
| | - Gerasimos Aravantinos
- Second Department of Medical Oncology, General Oncology Hospital of Kifissia ‘Agioi Anargiroi’, Athens 14564, Greece
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12
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Zhang Y, Tao G, Liu P, Lu K, Han Z, Liu H, Du M, Wang M, Chu H, Zhang Z. Evaluation of genetic variants in nucleosome remodeling and deacetylase (NuRD) complex subunits encoding genes and gastric cancer susceptibility. Arch Toxicol 2022; 96:1739-1749. [PMID: 35362730 DOI: 10.1007/s00204-022-03275-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/14/2022] [Indexed: 12/24/2022]
Abstract
Epigenetic complex NuRD (nucleosome remodeling and deacetylase) engages in a range of basic cellular processes, including chromatin modification. Changes in the activity of NuRD complex can influence gastric cancer progression. Multivariate logistic regression analyses were used to estimate the association between single-nucleotide polymorphisms (SNPs) and gastric cancer risk. Expression quantitative trait loci (eQTL) analysis was used to analyze the relationship between the genotypes and gene expression levels using data from the genotype tissue expression project (GTEx). Gene expression was calculated using databases from The Cancer Genome Atlas (TCGA) and The Gene Expression Omnibus (GEO). Kaplan-Meier plotter was used to evaluate the association between gene expression and survival. SNP rs11064275 T allele in CHD4, rs892022 A allele and rs2033481 A allele in GATAD2A were found to contribute to the decreased risk of gastric cancer. The increase in the number of favorable alleles of these three SNPs was associated with a lower risk of gastric cancer. rs2033481 and rs892022 were substantially correlated with GATAD2A mRNA expression levels. Meanwhile, we detected that the CHD4 and GATAD2A mRNA expression was increased in gastric cancer tissues compared with the adjacent normal tissues. Furthermore, we found that patients with higher CHD4 or GATAD2A mRNA expression level had more advantageous overall survival. Our findings indicated that genetic variants in NuRD complex subunits encoding genes may be promising predictors of gastric cancer risk.
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Affiliation(s)
- Yujuan Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Guoquan Tao
- Department of General Surgery, The Affiliated Huai'an No.1 People's Hospital, Nanjing Medical University, Huai'an, 223300, China
| | - Ping Liu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Kai Lu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhichao Han
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hanting Liu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Mulong Du
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Haiyan Chu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China. .,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China. .,Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
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13
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Han L, Shu X, Wang J. Helicobacter pylori-Mediated Oxidative Stress and Gastric Diseases: A Review. Front Microbiol 2022; 13:811258. [PMID: 35211104 PMCID: PMC8860906 DOI: 10.3389/fmicb.2022.811258] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/10/2022] [Indexed: 12/12/2022] Open
Abstract
Gastric cancer is considered to be a type of gastrointestinal tumor and is mostly accompanied by Helicobacter pylori (HP) infection at the early stage. Hence, the long-term colonization of the gastric mucosa by HP as a causative factor for gastrointestinal diseases cannot be ignored. The virulence factors secreted by the bacterium activate the signaling pathway of oxidative stress and mediate chronic inflammatory response in the host cells. The virulence factors also thwart the antibacterial effect of neutrophils. Subsequently, DNA methylation is induced, which causes continuous cell proliferation and evolution toward low-grade-differentiated gastric cells. This process provides the pathological basis for the occurrence of progressive gastric cancer. Therefore, this review aims to summarize the oxidative stress response triggered by HP in the gastric mucosa and the subsequent signaling pathways. The findings are expected to help in the formulation of new targeted drugs for preventing the occurrence of early gastric cancer and its progression to middle and advanced cancer.
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Affiliation(s)
- Lu Han
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xu Shu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jian Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Clinical Research Center for Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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14
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Perrot-Applanat M, Pimpie C, Vacher S, Bieche I, Pocard M, Baud V. Differential Expression of Genes Involved in Metabolism and Immune Response in Diffuse and Intestinal Gastric Cancers, a Pilot Ptudy. Biomedicines 2022; 10:biomedicines10020240. [PMID: 35203450 PMCID: PMC8869420 DOI: 10.3390/biomedicines10020240] [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: 12/14/2021] [Revised: 01/13/2022] [Accepted: 01/16/2022] [Indexed: 02/01/2023] Open
Abstract
Gastric cancer (GC) is one of the major causes of cancer-related mortality worldwide. The vast majority of GC cases are adenocarcinomas including intestinal and diffuse GC. The incidence of diffuse GCs, often associated with poor overall survival, has constantly increased in USA and Europe The molecular basis of diffuse GC aggressivity remains unclear. Using mRNA from diffuse and intestinal GC tumor samples of a Western cohort, this study reports the expression level of the immunomodulatory aryl-hydrocarbon receptor (AhR), and genes involved in immune suppression (PD1, PD-L1, PD-L2) and the early steps of tryptophan metabolism (IDO1, IDO2, TDO2). Strongly increased expression of IDO1 (p < 0.001) and PD1 (p < 0.003) was observed in the intestinal sub-type. The highest expression of IDO1 and PDL1 correlated with early clinical stage and absence of lymphatic invasion (×25 p = 0.004, ×3 p = 0.04, respectively). Our results suggest that kynurenine, produced by tryptophan catabolism, and AhR activation play a central role in creating an immunosuppressive environment. Correspondingly, as compared to intestinal GCs, expression levels of IDO1-TDO2 and PD-L1 were less prominent in diffuse GCs which also had less infiltration of immune cells, suggesting an inactive immune response in the advanced diffuse GC. Confirmation of these patterns of gene expression will require a larger cohort of early and advanced stages of diffuse GC samples.
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Affiliation(s)
- Martine Perrot-Applanat
- INSERM U1275, CAP Paris-Tech, Université de Paris, Lariboisiere Hospital, F-75010 Paris, France; (C.P.); (M.P.)
- Correspondence: (M.P.-A.); (V.B.)
| | - Cynthia Pimpie
- INSERM U1275, CAP Paris-Tech, Université de Paris, Lariboisiere Hospital, F-75010 Paris, France; (C.P.); (M.P.)
| | - Sophie Vacher
- Pharmacogenomics Unit-Institut Curie, Department of Genetics, Université de Paris, F-75005 Paris, France; (S.V.); (I.B.)
| | - Ivan Bieche
- Pharmacogenomics Unit-Institut Curie, Department of Genetics, Université de Paris, F-75005 Paris, France; (S.V.); (I.B.)
| | - Marc Pocard
- INSERM U1275, CAP Paris-Tech, Université de Paris, Lariboisiere Hospital, F-75010 Paris, France; (C.P.); (M.P.)
- Hepato-Biliary-Pancreatic Gastrointestinal Surgery and Liver Transplantation, AP-HP, Pitié Salpêtrière Hospital, F-75013 Paris, France
| | - Véronique Baud
- NF-kappaB, Différenciation et Cancer, Université de Paris, F-75006 Paris, France
- Correspondence: (M.P.-A.); (V.B.)
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15
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Demirtas TY, Rahman MR, Yurtsever MC, Gov E. Forecasting Gastric Cancer Diagnosis, Prognosis, and Drug Repurposing with Novel Gene Expression Signatures. OMICS : A JOURNAL OF INTEGRATIVE BIOLOGY 2022; 26:64-74. [PMID: 34910889 DOI: 10.1089/omi.2021.0195] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Gastric cancer (GC) is a prevalent disease worldwide with high mortality and poor treatment success. Early diagnosis of GC and forecasting of its prognosis with the use of biomarkers are directly relevant to achieve both personalized/precision medicine and innovation in cancer therapeutics. Gene expression signatures offer one of the promising avenues of research in this regard, as well as guiding drug repurposing analyses in cancers. Using publicly accessible gene expression datasets from the Gene Expression Omnibus and The Cancer Genome Atlas (TCGA), we report here original findings on co-expressed gene modules that are differentially expressed between 133 GC samples and 46 normal tissues, and thus hold potential for novel diagnostic candidates for GC. Furthermore, we found two co-expressed gene modules were significantly associated with poor survival outcomes revealed by survival analysis of the RNA-Seq TCGA datasets. We identified STAT6 (signal transducer and activator of transcription 6) as a key regulator of the identified gene modules. Finally, potential therapeutic drugs that may target and reverse the expression of the identified altered gene modules examined for drug repurposing analyses and the unraveled compounds were further investigated in the literature by the text mining method. Accordingly, we found several repurposed drug candidates, including Trichostatin A, Vorinostat, Parthenolide, Panobinostat, Brefeldin A, Belinostat, and Danusertib. Through text mining analysis and literature search validation, Belinostat and Danusertib were suggested as possible novel drug candidates for GC treatment. These findings collectively inform multiple aspects of GC medical management, including its precision diagnosis, forecasting of possible outcomes, and drug repurposing for innovation in GC medicines in the future.
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Affiliation(s)
- Talip Yasir Demirtas
- Department of Bioengineering, Faculty of Engineering, Adana Alparslan Turkes Science and Technology University, Adana, Turkey
| | - Md Rezanur Rahman
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia
| | - Merve Capkin Yurtsever
- Department of Bioengineering, Faculty of Engineering, Adana Alparslan Turkes Science and Technology University, Adana, Turkey
| | - Esra Gov
- Department of Bioengineering, Faculty of Engineering, Adana Alparslan Turkes Science and Technology University, Adana, Turkey
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16
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Chen Q, Lin L, Xiong B, Yang W, Huang J, Shi H, Wang Z. MiR-873-5p targets THUMPD1 to inhibit gastric cancer cell behavior and chemoresistance. J Gastrointest Oncol 2021; 12:2061-2072. [PMID: 34790374 DOI: 10.21037/jgo-21-641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/22/2021] [Indexed: 12/12/2022] Open
Abstract
Background Gastric cancer is one of the most common gastrointestinal tumors. Evidence has pointed to the fact that miRNAs play critical roles in the occurrence, development, and metastasis of gastric cancer by regulating cell proliferation, differentiation, apoptosis, and invasion. Methods In this study, first the relationship of miR-873-5p level and tissues types/LN(+/-)/metastasis(+/-)/tumor size was analysis, respectively. Second, the CCK8 and Transwell assay was used to determine the proliferation, invasion and migration of GC cells transfected with overexpression-/low expression-miR-873-5p. Third, the cell viability were analysis in the GC cells transfected with overexpression-/low expression-miR-873-5p treatment with different chemotherapy drugs. Fourth, the target gene of miR-873-5p was predicted using bioinformation methods. Fifth, the relationship of miR-873-5p with target gene-THUMPD1 were explored by using Wb and luciferase activity assay, et al. Results We confirmed that miR-873-5p was negatively correlated with GC including tumor size, LN metastasis, distant metastasis. The miR-873-5p enhanced the sensitivity of Doxorubicin/Fluorouracil and cisplatin. The THUMPD1 was the target gene of miR-873-5p. Moreover, miR-873-5p could target the THUMPD1 axis so as to inhibit gastric cancer cell behavior as well as chemoresistance. Conclusions MiR-873-5p plays a role in regulating cell behavior as well as regulating chemoresistance in gastric cancer. In addition, THUMPD1, as a downstream molecule of miR-873-5p, plays an important role in the cell behavior and chemoresistance of gastric cancer. The research first confirmed that miR-873-5p could inhibit gastric cancer cell behavior and chemoresistance by targeting the THUMPD1.
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Affiliation(s)
- Qinggui Chen
- Department of General Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Li Lin
- Department of Gastrointestinal Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Boliang Xiong
- Department of Radiotherapy, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Wensheng Yang
- Department of Pathology, Chenggong Hospital, Xiamen University, Xiamen, China
| | - Junli Huang
- Department of General Surgery, Chenggong Hospital, Xiamen University, Xiamen, China
| | - Huibo Shi
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education NHC Key Laboratory of Organ Transplantation, Wuhan, China
| | - Zhenfa Wang
- Department of Gastrointestinal Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
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17
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Wang T, Ji R, Liu G, Ma B, Wang Z, Wang Q. Lactate induces aberration in the miR-30a-DBF4 axis to promote the development of gastric cancer and weakens the sensitivity to 5-Fu. Cancer Cell Int 2021; 21:602. [PMID: 34758839 PMCID: PMC8582204 DOI: 10.1186/s12935-021-02291-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 10/21/2021] [Indexed: 12/15/2022] Open
Abstract
Background Gastric cancer (GC) is one of the most common malignancies, molecular mechanism of which is still not clear. Aberrant expression of tumor-associated genes is the major cause of tumorigenesis. DBF4 is an important factor in cancers, although there is yet no report on its function and molecular mechanism in GC. Methods The expression of DBF4 in tumor tissues or cells of GC was detected by qRT-PCR and western blotting. Gastric cancer cell line MGC-803 and AGS were transfected with DBF4 siRNA or overexpression vector to detect the function of DBF4 in proliferation, migration and the sensitivity to 5-Fu with CCK-8 assay, colony formation assay, transwell assay, and wound healing assay. miR-30a was found to be the regulator of DBF4 by online bioinformatics software and confirmed with qRT-PCR, western blot and dual-luciferase reporter assays. Results In our study, increased expression of DBF4 in GC tissues was first identified through The Cancer Genome Atlas (TCGA) and later confirmed using specimens from GC patients. Furthermore, functional experiments were applied to demonstrate that DBF4 promotes cell proliferation and migration in GC cell lines, moreover weakens the sensitivity of MGC803 and AGS cells to 5-Fu. We further demonstrated that miR-30a showed significantly lower expression in GC cells and inhibited the expression of DBF4 through 3ʹ-UTR suppression. Furthermore, rescue experiments revealed that the miR-30a-DBF4 axis regulated the GC cell proliferation, migration and the sensitivity to 5-Fu. The important composition in tumor microenvironment, lactate, may be the primary factor that suppressed miR-30a to strengthen the expression of DBF4. Conclusions Taken together, our study was the first to identify DBF4 as a regulator of cell proliferation and migration in GC. Furthermore, our study identified the lactate-miR-30a-DBF4 axis as a crucial regulator of tumor progression and the tumor sensitivity to 5-Fu, which maybe serve useful for the development of novel therapeutic targets.
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Affiliation(s)
- Tengkai Wang
- Department of Internal Medicine, Qilu Hospital, Shandong University, 107 West Wenhua Road, Jinan, 250012, Shandong, P.R. China
| | - Rui Ji
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, Shandong, P.R. China
| | - Guanqun Liu
- Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, Shandong, P.R. China
| | - Beilei Ma
- Department of Clinical Laboratory, Qilu Hospital, Shandong University (Qingdao), 758 Hefei Road, Qingdao, Shandong, P. R. China
| | - Zehua Wang
- Department of Clinical Laboratory, Qilu Hospital, Shandong University (Qingdao), 758 Hefei Road, Qingdao, Shandong, P. R. China.
| | - Qian Wang
- Department of Clinical Laboratory, Qilu Hospital, Shandong University, 107 Wenhuaxi Road, Jinan, 250012, Shandong, P.R. China.
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18
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Huang Y, Yang Z, Huang C, Jiang X, Yan Y, Zhuang K, Wen Y, Liu F, Li P. Identification of N6-Methylandenosine-Related lncRNAs for Subtype Identification and Risk Stratification in Gastric Adenocarcinoma. Front Oncol 2021; 11:725181. [PMID: 34646770 PMCID: PMC8504261 DOI: 10.3389/fonc.2021.725181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/02/2021] [Indexed: 01/11/2023] Open
Abstract
Objectives The purpose of this study was to investigate the role of m6A-related lncRNAs in gastric adenocarcinoma (STAD) and to determine their prognostic value. Methods Gene expression and clinicopathological data were obtained from The Cancer Genome Atlas (TCGA) database. Correlation analysis and univariate Cox regression analysis were conducted to identify m6A-related prognostic lncRNAs. Subsequently, different clusters of patients with STAD were identified via consensus clustering analysis, and a prognostic signature was established by least absolute shrinkage and selection operator (LASSO) Cox regression analyses. The clinicopathological characteristics, tumor microenvironment (TME), immune checkpoint genes (ICGs) expression, and the response to immune checkpoint inhibitors (ICIs) in different clusters and subgroups were explored. The prognostic value of the prognostic signature was evaluated using the Kaplan-Meier method, receiver operating characteristic curves, and univariate and multivariate regression analyses. Additionally, Gene Set Enrichment Analysis (GSEA), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, and Gene Ontology (GO) analysis were performed for biological functional analysis. Results Two clusters based on 19 m6A-related lncRNAs were identified, and a prognostic signature comprising 14 m6A-related lncRNAs was constructed, which had significant value in predicting the OS of patients with STAD, clinicopathological characteristics, TME, ICGs expression, and the response to ICIs. Biological processes and pathways associated with cancer and immune response were identified. Conclusions We revealed the role and prognostic value of m6A-related lncRNAs in STAD. Together, our finding refreshed the understanding of m6A-related lncRNAs and provided novel insights to identify predictive biomarkers and immunotherapy targets for STAD.
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Affiliation(s)
- Yuancheng Huang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zehong Yang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chaoyuan Huang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaotao Jiang
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanhua Yan
- First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kunhai Zhuang
- Department of Gastroenterology, Baiyun Branch of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yi Wen
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fengbin Liu
- Department of Gastroenterology, Baiyun Branch of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peiwu Li
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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19
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Detection of Persistent Organic Pollutants in Omental Adipose Tissue from Patients with Diffuse-Gastric Cancer: A Pilot Study. Cancers (Basel) 2021; 13:cancers13194874. [PMID: 34638358 PMCID: PMC8508119 DOI: 10.3390/cancers13194874] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 12/02/2022] Open
Abstract
Simple Summary This pilot study reported the observation that great omentum could be analyzed to detect persistent organic pollutants (POPs). Diffuse gastric cancer is an increasing disease that could be associated with pollutants’ exposition. Here, we report a specific POP profile regarding a patient not affected by cancer, nor by diffuse gastric cancer or other abdominal cancers. The widespread presence of a substantial list of POPs (PCDDs/Fs, PCBs, and brominated flame retardants) was found in the omentum from patients with diffuse gastric cancer with minor presence of some organochlorine pesticides. Abstract The greater omentum represents a specific adipose tissue resected with gastric surgery for cancer. Diffuse gastric adenocarcinoma (diffuse-GC) is of major relevance among gastric cancers due to its unknown origin, aggressiveness, and metastasis in the peritoneal cavity. We postulated that persistent organic pollutants (POPs) could be detected in the greater omentum. Great omentum from patients with (i) diffuse-GC, or (ii) with other peritoneal metastatic cancer, and (iii) control group without cancer disease were analyzed for the distribution of a large panel of 96 POPs. POPs include polychlorinated dioxins/furans (PCDD/Fs), polychlorobiphenyls (PCBs), polybrominated diphenyl ethers (PBDE), polybrominated biphenyls (PBB), hexabromocyclododecanes, organochlorine pesticides, and polycyclic aromatic hydrocarbons (PAHs). The widespread presence of a substantial list of POPs (PCDDs/Fs, PCBs, and brominated flame retardants) was found in the omentum from patients with aggressive diffuse-GC, with minor presence of some organochlorine pesticides and PAHs at the low analyzed levels. Some chemicals appeared in larger concentrations in diffuse-GC or other cancer groups, including some PCDDs, PCB105, 123, 138, PBDE209, and PBB153. Overall, the present pilot study provides novel information regarding POPs levels in the omental fat, which is an understudied fat depot in terms of POPs load, and diffuse-GC association.
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20
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Sugimoto R, Endo M, Osakabe M, Toya Y, Yanagawa N, Matsumoto T, Sugai T. Immunohistochemical Analysis of Mismatch Repair Gene Proteins in Early Gastric Cancer Based on Microsatellite Status. Digestion 2021; 102:691-700. [PMID: 33053554 DOI: 10.1159/000510679] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 08/05/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Microsatellite instability (MSI) is a major pathway involved in gastric carcinogenesis and is observed in 10-20% of early gastric cancers (EGCs). Early detection of EGCs with an MSI-high phenotype would be useful for elucidating the mechanisms of gastric carcinogenesis and improving outcomes in patients with GC. OBJECTIVE We explored the usefulness of immunohistochemical expression of mismatch repair (MMR) proteins, including MLH1, PMS2, MSH2, and MSH6 in EGC. METHODS We examined the expression of 4 MMR proteins using immunohistochemistry in 119 patients with EGC based on MS status, as determined by polymerase chain reaction-microsatellite analysis. In addition, methylation of the MLH1 gene was quantified by pyrosequencing. RESULTS EGCs were classified into 46 MSI-high phenotypes and 73 microsatellite stable (MSS) phenotypes. Although loss of MLH1 expression was associated with loss of PMS2 expression in the MSI-high phenotype, discordant cases of loss of expression between MLH1 and PMS2 were found (MLH1 [-]/PMS2 [+], 3 cases). Loss of MLH1/PMS2 expression was observed in 2 of 73 MSS phenotypes. Loss of MSH2/MSH6 expression was found in 4 of 46 MSI-high phenotypes, whereas loss of MSH2/MSH6 expression was not detected in the MSS phenotype. In addition, loss of MLH1 expression was correlated with methylation of MLH1. However, there were discordant cases in which loss of MLH1 expression was not accompanied by methylation of MLH1. CONCLUSION Although immunostaining of MMR proteins could help predict MSI in EGCs, immunostaining did not have the same value as genetic testing for determination of MSI.
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Affiliation(s)
- Ryo Sugimoto
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Shiwa, Japan
| | - Masaki Endo
- Department of Internal Medicine, Division of Gastroenterology, School of Medicine, Iwate Medical University, Shiwa, Japan
| | - Mitsumasa Osakabe
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Shiwa, Japan
| | - Yosuke Toya
- Department of Internal Medicine, Division of Gastroenterology, School of Medicine, Iwate Medical University, Shiwa, Japan
| | - Naoki Yanagawa
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Shiwa, Japan
| | - Takayuki Matsumoto
- Department of Internal Medicine, Division of Gastroenterology, School of Medicine, Iwate Medical University, Shiwa, Japan
| | - Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, Shiwa, Japan,
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21
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Mashukov A, Shapochka D, Seleznov O, Kobyliak N, Falalyeyeva T, Kirkilevsky S, Yarema R, Sulaieva O. Histological differentiation impacts the tumor immune microenvironment in gastric carcinoma: Relation to the immune cycle. World J Gastroenterol 2021; 27:5259-5271. [PMID: 34497449 PMCID: PMC8384749 DOI: 10.3748/wjg.v27.i31.5259] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/01/2021] [Accepted: 08/09/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Various histological types of gastric carcinomas (GCs) differ in terms of their pathogenesis and their preexisting background, both of which could impact the tumor immune microenvironment (TIME). However, the current understanding of the immune contexture of GC is far from complete. AIM To clarify the tumor-host immune interplay through histopathological features and the tumor immune cycle concept. METHODS In total, 50 GC cases were examined (15 cases of diffuse GC, 31 patients with intestinal-type GC and 4 cases of mucinous GC). The immunophenotype of GC was assessed and classified as immune desert (ID), immune excluded (IE) or inflamed (Inf) according to CD8+ cell count and spatial pattern. In addition, CD68+ and CD163+ macrophages and programmed death-ligand 1 (PD-L1) expression were estimated. RESULTS We found that GCs with different histological differentiation demonstrated distinct immune contexture. Most intestinal-type GCs had inflamed TIMEs rich in both CD8+ cells and macrophages. In contrast, more aggressive diffuse-type GC more often possessed ID characteristics with few CD8+ lymphocytes but abundant CD68+ macrophages, while mucinous GC had an IE-TIME with a prevalence of CD68+ macrophages and CD8+ lymphocytes in the peritumor stroma. PD-L1 expression prevailed mostly in intestinal-type Inf-GC, with numerous CD163+ cells observed. Therefore, GCs of different histological patterns have specific mechanisms of immune escape. While intestinal-type GC was more often related to PD-L1 expression, diffuse and mucinous GCs possessing more aggressive behavior demonstrated low immunogenicity and a lack of tumor antigen recognition or immune cell recruitment into the tumor clusters. CONCLUSION These data help to clarify the links between tumor histogenesis and immunogenicity for a better understanding of GC biology and more tailored patient management.
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Affiliation(s)
- Artem Mashukov
- Department of Oncology, Odessa National Medical University, Odessa 65082, Ukraine
| | - Dmytro Shapochka
- Department of Molecular Pathology and Genetics, Medical Laboratory CSD, Kyiv 03022, Ukraine
| | - Oleksii Seleznov
- Department of Pathology, Medical Laboratory CSD, Kyiv 03022, Ukraine
| | - Nazarii Kobyliak
- Department of Pathology, Medical Laboratory CSD, Kyiv 03022, Ukraine
- Department of Endocrinology, Bogomolets National Medical University, Kyiv 01601, Ukraine
| | - Tetyana Falalyeyeva
- Biomedicine, Educational-Scientific Center, "Institute of Biology and Medicine" Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine
| | | | - Roman Yarema
- Department of Oncology and Medical Radiology, Danylo Halytsky Lviv National Medical University, Lviv 79010, Ukraine
| | - Oksana Sulaieva
- Department of Pathology, Medical Laboratory CSD, Kyiv 03022, Ukraine
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22
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Rahardja F, Prasetyo D, Shahib MN, Tjahjani S. The Influence of Lactobacillus Acidophilus on MUC1, GAL-3, IL-1β and IL-17 Gene Expression in BALB/c Mice Stomach. Open Microbiol J 2021. [DOI: 10.2174/1874285802115010067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background and Objective:
Lactobacillus acidophilus has been widely used for the management of gastrointestinal carcinoma owing to its immunomodulation effect; however, the role of L. acidophilus and its specific mechanism of action in the stomach is not fully comprehended. The present study evaluated the expression profile of MUC-1, GAL-3, IL -1β, and IL-17 in the L. acidophilus treated mice stomach.
Methods:
The study was conducted utilizing three groups of mice, 6 mice for each group, administered with different doses of L. acidophilus and a control group treated with normal saline. The results were analyzed with the Mann-Whitney Test.
Results:
The results demonstrated that L. acidophilus elevated IL-1β insignificantly and inhibited the expression of IL-17. The MUC-1 expression is influenced by L. acidophilus and inversely proportional to GAL-3 expression.
Conclusion:
Lactobacillus acidophilus plays a prominent role against inflammatory responses and has a potential in the treatment of gastrointestinal cancer.
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Dysregulation of lncRNA in Helicobacter pylori-Infected Gastric Cancer Cells. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6911734. [PMID: 34337048 PMCID: PMC8286195 DOI: 10.1155/2021/6911734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/25/2021] [Accepted: 06/30/2021] [Indexed: 12/31/2022]
Abstract
Helicobacter pylori (H. pylori) infection is the most common cause of gastric cancer (GC). This microorganism is genetically diverse; GC is caused by several genetic deregulations in addition to environmental factors and bacterial virulence factors. lncRNAs (long noncoding RNAs) are significant biological macromolecules in GC, have specific functions in diseases, and could be therapeutic targets. Altered lncRNAs can lead to the abnormal expression of adjacent protein-coding genes, which may be important in cancer development. Their mechanisms have not been well understood, so we are going to investigate the risk of GC in a population with both high lncRNA and H. pylori infection.
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Ghrelin Regulates Cyclooxygenase-2 Expression and Promotes Gastric Cancer Cell Progression. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:5576808. [PMID: 34122616 PMCID: PMC8166482 DOI: 10.1155/2021/5576808] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/01/2021] [Accepted: 04/16/2021] [Indexed: 12/30/2022]
Abstract
Aim To research the molecular mechanism of ghrelin in apoptosis, migratory, and invasion of gastric cancer (GC) cells. Methods After GC AGS cells were handled with ghrelin (10–8 M), cyclooxygenase-2 inhibitor NS398 (100 μM), and Akt inhibitor perifosine (10uM), the rates of apoptosis were detected by TUNEL assay and flow cytometry assay. We assessed the expressions of PI3K, p-Akt, and COX-2 proteins by making use of Western blot analysis. The cell migratory and invasion were detected by using wound-healing and transwell analysis. Results The migratory and invasion were increased in ghrelin-treated cells, while the rates of apoptosis were decreased. GC AGS cells treated with ghrelin showed an increase in protein expression of p-Akt, PI3K, and COX-2. After cells were treated with Akt inhibitor perifosine, the protein expression of p-Akt, PI3K, and COX-2 and the cell migratory, invasion, and apoptosis were partly recovered. After cells were treated with cyclooxygenase-2 inhibitor NS398, the protein expression of COX-2 and the cell migratory and invasion were decreased, while the rates of apoptosis were increased. Conclusion Ghrelin regulates cell migration, invasion, and apoptosis in GC cells through targeting PI3K/Akt/COX-2. Ghrelin increases the expression of COX-2 in GC cells by targeting PI3K/Akt. Ghrelin is suggested to be one of the molecular targets in GC.
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Astudillo P. A Non-canonical Wnt Signature Correlates With Lower Survival in Gastric Cancer. Front Cell Dev Biol 2021; 9:633675. [PMID: 33869179 PMCID: PMC8047116 DOI: 10.3389/fcell.2021.633675] [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] [Received: 11/26/2020] [Accepted: 02/24/2021] [Indexed: 01/02/2023] Open
Abstract
Genetic evidence suggests a role for the Wnt/β-catenin pathway in gastric cancer. However, Wnt5a, regarded as a prototypical non-canonical Wnt ligand, has also been extensively associated with this disease. Therefore, the roles of the Wnt signaling pathway in gastric cancer initiation and progression, and particularly the precise mechanisms by which the non-canonical Wnt pathway might promote the development and progression of gastric cancer, are not entirely well understood. This article analyzes publicly available gene and protein expression data and reveals the existence of a WNT5A/FZD2/FZD7/ROR2 signature, which correlates with tumor-infiltrating and mesenchymal cell marker expression. High expression of FZD7 and ROR2 correlates with a shared gene and protein expression profile, which in turn correlates with poor prognosis. In summary, the findings presented in this article provide an updated view of the relative contributions of the Wnt/β-catenin and non-canonical Wnt pathways in gastric cancer.
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Affiliation(s)
- Pablo Astudillo
- Facultad de Ciencias de la Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
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26
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Wan H, Xu L, Zhang H, Wu F, Zeng W, Li T. High expression of NEK2 promotes gastric cancer progression via activating AKT signaling. J Physiol Biochem 2020; 77:25-34. [PMID: 33201407 DOI: 10.1007/s13105-020-00776-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 11/10/2020] [Indexed: 12/24/2022]
Abstract
Never in mitosis gene A-related kinase 2 (NEK2) has been recognized as an oncogene involved in the initiation and progression of various human cancers. However, our knowledge is still lacking in regard to the function of NEK2 in gastric cancer, the most common cancer in Eastern Asia associated with poor prognosis. Therefore, in the present study, we investigated the association of NEK2 with gastric cancer. We found that the development of gastric cancer is associated with NEK2 overexpression, particularly in patients with large tumor size and lymph node metastasis. We also provided evidence that NEK2 overexpression binds to and inhibits protein phosphatase 1 (PP1), which subsequently activates AKT and the downstream oncogenic pathways. As a result, via AKT/HIF1α axis, the glucose metabolism is reprogrammed towards aerobic glycolysis to provide rapid energy for the growth of gastric cancer cells. Moreover, the autophagic activity is suppressed via AKT/mTOR axis, leading to impaired response to cancer treatment and enhanced cell survival. In contrast, inactivating AKT by NEK2 silencing decreases aerobic glycolysis and promotes autophagic cell death, which eventually inhibits the growth of gastric cancer cell. All these results revealed that NEK2 promotes gastric cancer progression via activating AKT-mediated signaling pathways, which expanded our knowledge on gastric cancer pathogenesis and also provided novel target for clinical treatment.
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Affiliation(s)
- Hao Wan
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Lin Xu
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Huangbin Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Feixiang Wu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Weiqiang Zeng
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi, China
| | - Taiyuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi, China.
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Pathways of Gastric Carcinogenesis, Helicobacter pylori Virulence and Interactions with Antioxidant Systems, Vitamin C and Phytochemicals. Int J Mol Sci 2020; 21:ijms21176451. [PMID: 32899442 PMCID: PMC7503565 DOI: 10.3390/ijms21176451] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/21/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori is a class one carcinogen which causes chronic atrophic gastritis, gastric intestinal metaplasia, dysplasia and adenocarcinoma. The mechanisms by which H. pylori interacts with other risk and protective factors, particularly vitamin C in gastric carcinogenesis are complex. Gastric carcinogenesis includes metabolic, environmental, epigenetic, genomic, infective, inflammatory and oncogenic pathways. The molecular classification of gastric cancer subtypes has revolutionized the understanding of gastric carcinogenesis. This includes the tumour microenvironment, germline mutations, and the role of Helicobacter pylori bacteria, Epstein Barr virus and epigenetics in somatic mutations. There is evidence that ascorbic acid, phytochemicals and endogenous antioxidant systems can modify the risk of gastric cancer. Gastric juice ascorbate levels depend on dietary intake of ascorbic acid but can also be decreased by H. pylori infection, H. pylori CagA secretion, tobacco smoking, achlorhydria and chronic atrophic gastritis. Ascorbic acid may be protective against gastric cancer by its antioxidant effect in gastric cytoprotection, regenerating active vitamin E and glutathione, inhibiting endogenous N-nitrosation, reducing toxic effects of ingested nitrosodimethylamines and heterocyclic amines, and preventing H. pylori infection. The effectiveness of such cytoprotection is related to H. pylori strain virulence, particularly CagA expression. The role of vitamin C in epigenetic reprogramming in gastric cancer is still evolving. Other factors in conjunction with vitamin C also play a role in gastric carcinogenesis. Eradication of H. pylori may lead to recovery of vitamin C secretion by gastric epithelium and enable regression of premalignant gastric lesions, thereby interrupting the Correa cascade of gastric carcinogenesis.
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MAC30 Knockdown Inhibits Proliferation and Enhance Apoptosis of Gastric Cancer by Suppressing Wnt/ β-Cateninsignaling Pathway. Gastroenterol Res Pract 2020; 2020:6358685. [PMID: 32904598 PMCID: PMC7456481 DOI: 10.1155/2020/6358685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 07/15/2020] [Indexed: 01/17/2023] Open
Abstract
Gastric cancer is one of the most frequently diagnosed cancer and poses a serious threat to health system in the world. Upregulation of meningioma-associated protein (MAC30) has been found in many solid tumors and can regulate the proliferation, differentiation, and apoptosis of different tumor cells. Quantitative polymerase chain reaction (qPCR) was used to detect the expression of MAC30 in 68 patients with gastric cancer and their adjacent tissues. Lentiviral vector pGCSIL-shMAC30-GFP of the RNA interference (RNAi) of the MAC30 gene was transfected into gastric cancer BGC-823 cell line and the expression of lentivirus label protein GFP was observed via fluorescence microscope, while cell proliferation and apoptosis were determined with flow cytometry and MTT assay, respectively. Also, related protein expressions on Wnt/β-catenin signaling pathway were analyzed by Western blot method. The expression of MAC30 was abnormally elevated in gastric cancer tissues, while interfering of its expression could significantly inhibit the proliferation of gastric cancer BGC-823 cell line. However, the promotion of apoptosis by mitochondrial pathway was mediated by Bax/Bcl-2 upregulation. Present work showed the effect of downregulated MAC30 expression on proliferation and apoptosis of gastric cancer cell through Wnt/β-catenin signaling pathway. Thus, this investigation provides an experimental basis for future development of chemotherapeutic agent on gastric cancer.
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Tran THT, Melamed J, Deng FM. Gastric Adenocarcinoma Arising in Gastrocystoplasty. Urology 2020; 148:270-273. [PMID: 32683064 DOI: 10.1016/j.urology.2020.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/28/2020] [Accepted: 07/05/2020] [Indexed: 11/18/2022]
Abstract
Gastric cancer is a rare long-term complication in gastrocystoplasty. We report 2 cases of gastric adenocarcinoma and review the literature for similar cases. A total of 14 cases are identified. The majority of patients are males, presented with hematuria, and developed cancer at a younger age, more than 10 years after gastrocystoplasty. Long-term follow up information was limited, but 5 patients (36%) died within 5 years of diagnosis. Annual surveillance for malignancy may not be effective due to its rarity. However, symptomatic patients, particularly those 10 years after the surgery, warrant detailed evaluation to rule out neoplastic transformation.
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Affiliation(s)
- Tuyet Hong T Tran
- Department of Pathology, New York University Langone Health, New York, NY
| | - Jonathan Melamed
- Department of Pathology, New York University Langone Health, New York, NY
| | - Fang-Ming Deng
- Department of Pathology, New York University Langone Health, New York, NY.
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30
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Wang B, Jiang H, Wan X, Wang Y, Zheng X, Li P, Guo J, Ding X, Song H. Carbonic anhydrase IV inhibits cell proliferation in gastric cancer by regulating the cell cycle. Oncol Lett 2020; 20:4. [PMID: 32774478 PMCID: PMC7405342 DOI: 10.3892/ol.2020.11865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 04/15/2020] [Indexed: 12/12/2022] Open
Abstract
Carbonic anhydrase IV (CA4) is silenced in colorectal cancer. However, the effect of CA4 on the development of gastric cancer (GC) is poorly understood. The present study aimed to determine the role of CA4 in GC tumorigenesis and its underlying molecular mechanism. The levels of CA4 in GC cells and tissues were evaluated by reverse transcription-quantitative PCR and immunohistochemistry. CA4 expression was suppressed in GC cells and tissues compared with adjacent healthy tissues and normal human gastric epithelial cells, respectively. This reduced expression was significantly associated with tumor size, invasion and differentiation. Analyses with a real-time cell analyzer and clonogenic assays were conducted to validate the impact of CA4 on GC cell lines (AGS and HGC-27) and normal human gastric epithelial cell line (GES-1) proliferation. The effects of CA4 on the cell cycle in GC cells were determined by flow cytometry. The levels of CA4 and cell cycle-associated proteins were confirmed by western blotting. CA4 overexpression inhibited GC cell proliferation and reduced colony-forming ability, arrested the cell cycle in the G2/M phase, inhibited cyclin B1 and cyclin-dependent kinase 2 expression and induced p21 expression. These results indicate that CA4 may serve an important role in GC tumorigenesis by inhibiting cellular proliferation via regulating the expression of cell cycle-associated proteins. CA4 may serve as a diagnostic biomarker and a potential therapeutic target in GC.
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Affiliation(s)
- Bujiang Wang
- Department of Gastroenterology, Laboratory of Digestive Diseases, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Haizhong Jiang
- Department of Gastroenterology, Laboratory of Digestive Diseases, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Xiangxiang Wan
- Department of Gastroenterology, The Third Hospital of Nanchang, Nanchang, Jiangxi 330002, P.R. China
| | - Yaqing Wang
- Laboratory of Molecular Medicine, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Xiaocao Zheng
- Department of Histopathology, Ningbo Diagnostic Pathology Center, Ningbo, Zhejiang 315010, P.R. China
| | - Peifei Li
- Department of Gastroenterology, Laboratory of Digestive Diseases, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Junming Guo
- Department of Biochemistry and Molecular Biology, Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo, Zhejiang 315211, P.R. China
| | - Xiaoyun Ding
- Department of Gastroenterology, Laboratory of Digestive Diseases, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
| | - Haojun Song
- Department of Gastroenterology, Laboratory of Digestive Diseases, Ningbo First Hospital, Ningbo, Zhejiang 315010, P.R. China
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Tao J, Sun G, Li Q, Zhi X, Li Z, He Z, Chen H, Zhou A, Ye J, Xu G, Guan W, Zhang W. KIF15 promotes the evolution of gastric cancer cells through inhibition of reactive oxygen species-mediated apoptosis. J Cell Physiol 2020; 235:9388-9398. [PMID: 32342525 DOI: 10.1002/jcp.29743] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 04/15/2020] [Accepted: 04/17/2020] [Indexed: 12/24/2022]
Abstract
Kinesin family member 15 (KIF15) is a member of the kinesin superfamily of proteins, which promotes cell mitosis, participates in the transport of intracellular materials, and helps structural assembly and cell signaling pathways transduction. However, its biological role and molecular mechanisms of action in the development of gastric cancer (GC) remain unclear. In the present study, an integrated analysis of The Cancer Genome Atlas (TCGA), Gene Expression Omnibus database, and Kaplan-Meier plotter database was performed to predict the expression and prognostic value of KIF15 in GC patients. Detection of KIF15 expression in GC cells and tissues was performed by a quantitative polymerase chain reaction. In vitro cell proliferation, viability, colony formation ability and flow cytometry assays, and in vivo tumorigenicity assay, were performed to evaluate the effects of KIF15 knockdown on GC cell phenotype. It was demonstrated that the expression of KIF15 messenger RNA in GC tissues was significantly higher compared with that in adjacent tissues, and was closely associated with larger tumor size and poor patient prognosis. In addition, functional studies demonstrated that, due to the increase in reactive oxygen species (ROS) generation, the interference with the expression of KIF15 not only decreased cell proliferation but also increased cell apoptosis and induced cell cycle arrest. ROS-mediated activation of c-Jun N-terminal kinase/c-Jun signaling reduced cell proliferation by regulating the GC cell cycle and increasing apoptosis. Taken together, the results of the present study indicate that KIF15 is an oncoprotein contributing to GC progression, and is expected to help identify novel biomarkers and treatment targets in GC.
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Affiliation(s)
- Jinqiu Tao
- Department of General Surgery, The Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, China
| | - Guangli Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qing Li
- School of Medicine, Southeast University, Nanjing, China
| | - Xiaofei Zhi
- Department of General Surgery, The Affiliated Hospital of Nantong University, China
| | - Zheng Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhongyuan He
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Huihui Chen
- Department of General Surgery, The Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, China
| | - Aiping Zhou
- Department of General Surgery, The Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, China
| | - Jiahui Ye
- Department of General Surgery, The Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, China
| | - Guifang Xu
- Department of Gastroenterology, The Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, China
| | - Wenxian Guan
- Department of General Surgery, The Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, China
| | - Weijie Zhang
- Department of General Surgery, The Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, China
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Assumpção P, Araújo T, Khayat A, Ishak G, Santos S, Barra W, Acioli JF, Rossi B, Assumpção P. Hereditary gastric cancer: Three rules to reduce missed diagnoses. World J Gastroenterol 2020; 26:1382-1393. [PMID: 32308342 PMCID: PMC7152522 DOI: 10.3748/wjg.v26.i13.1382] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/17/2020] [Accepted: 03/09/2020] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer remains one of the most lethal cancers. The incidence and mortality rates are quite similar. The main reason for the high mortality is diagnosis at advanced stages of disease, when treatment options are poor. One of the supposed strategies to overcome late-stage diagnosis is identifying people at high risk with the aim of establishing rigorous clinical control, including routine endoscopy and biopsies. Hereditary gastric cancer (HGC) syndromes, though representing a sizeable group to monitor for prevention or, at least, for early diagnosis, are apparently extremely rare. The low rate of HGC diagnosis might be related to the low rates of suspicion, insufficient familiarity about clinical diagnosis criteria, and the supposed conditional necessity of a molecular diagnosis. In this review, we will discuss simple measures to increase HGC diagnosis by applying three rules that might provide an opportunity for precision care to benefit the families affected by this disease.
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Affiliation(s)
- Paula Assumpção
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Pará, Belém 66075-110, Brazil
| | - Taíssa Araújo
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-000, Brazil
| | - André Khayat
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-000, Brazil
| | - Geraldo Ishak
- Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-000, Brazil
| | - Sidney Santos
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-000, Brazil
| | - Williams Barra
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-000, Brazil
| | - João Felipe Acioli
- Hospital Universitário João de Barros Barreto, Universidade Federal do Pará, Belém 66073-000, Brazil
| | - Benedito Rossi
- Centro de Oncologia e Aconselhamento Genético, Hospital Sírio Libanês, São Paulo 01308-050, Brazil
| | - Paulo Assumpção
- Núcleo de Pesquisas em Oncologia, Universidade Federal do Pará, Belém 66073-000, Brazil
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Wang W, He Y, Zhao Q, Zhao X, Li Z. Identification of potential key genes in gastric cancer using bioinformatics analysis. Biomed Rep 2020; 12:178-192. [PMID: 32190306 PMCID: PMC7054703 DOI: 10.3892/br.2020.1281] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 01/27/2020] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the most common types of cancer worldwide. Patients must be identified at an early stage of tumor progression for treatment to be effective. The aim of the present study was to identify potential biomarkers with diagnostic value in patients with GC. To examine potential therapeutic targets for GC, four Gene Expression Omnibus (GEO) datasets were downloaded and screened for differentially expressed genes (DEGs). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were subsequently performed to study the function and pathway enrichment of the identified DEGs. A protein-protein interaction (PPI) network was constructed. The CytoHubba plugin of Cytoscape was used to calculate the degree of connectivity of proteins in the PPI network, and the two genes with the highest degree of connectivity were selected for further analysis. Additionally, the two DEGs with the largest and smallest log Fold Change values were selected. These six key genes were further examined using Oncomine and the Kaplan-Meier plotter platform. A total of 99 upregulated and 172 downregulated genes common to all four GEO datasets were screened. The DEGs were primarily enriched in the Biological Process terms: ‘extracellular matrix organization’, ‘collagen catabolic process’ and ‘cell adhesion’. These three KEGG pathways were significantly enriched in the categories: ‘ECM-receptor interaction’, ‘protein digestion and absorption’, and ‘focal adhesion’. Based on Oncomine, expression of ATP4A and ATP4B were downregulated in GC, whereas expression of the other genes were all upregulated. The Kaplan-Meier plotter platform confirmed that upregulated expression of the identified key genes was significantly associated with worse overall survival of patients with GC. The results of the present study suggest that FN1, COL1A1, INHBA and CST1 may be potential biomarkers and therapeutic targets for GC. Additional studies are required to explore the potential value of ATP4A and ATP4B in the treatment of GC.
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Affiliation(s)
- Wei Wang
- Department of Gastroenterology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Ying He
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610075, P.R. China
| | - Qi Zhao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Xiaodong Zhao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
| | - Zhihong Li
- Department of Gastroenterology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R. China
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Jung JO, Nienhüser H, Schleussner N, Schmidt T. Oligometastatic Gastroesophageal Adenocarcinoma: Molecular Pathophysiology and Current Therapeutic Approach. Int J Mol Sci 2020; 21:E951. [PMID: 32023907 PMCID: PMC7038165 DOI: 10.3390/ijms21030951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/20/2020] [Accepted: 01/29/2020] [Indexed: 12/15/2022] Open
Abstract
Gastric and esophageal cancers are dreaded malignancies, with a majority of patients presenting in either a locally advanced or metastatic state. Global incidences are rising and the overall prognosis remains poor. The concept of oligometastasis has been established for other tumor entities and is also proposed for upper gastrointestinal tract cancers. This review article explores metastasis mechanisms on the molecular level, specific to esophageal and gastric adenocarcinoma. Existing data and recent studies that deal with upper gastrointestinal tumors in the oligometastatic state are reviewed. Furthermore, current therapeutic targets in gastroesophageal cancers are presented and discussed. Finally, a perspective about future diagnostic and therapeutic strategies is given.
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Affiliation(s)
| | | | | | - Thomas Schmidt
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Im Neuenheimer Feld 110, 69120 Heidelberg, Germany; (J.-O.J.); (H.N.); (N.S.)
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Curcumin Ameliorates Benzo[a]pyrene-Induced DNA Damages in Stomach Tissues of Sprague-Dawley Rats. Int J Mol Sci 2019; 20:ijms20225533. [PMID: 31698770 PMCID: PMC6888507 DOI: 10.3390/ijms20225533] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 11/17/2022] Open
Abstract
Benzo[a]pyrene (BaP) is a well-known carcinogen formed during the cooking process. Although BaP exposure has been implicated as one of the risk factors for lung cancer in animals and humans, there are only limited data on BaP-induced gastrointestinal cancer. Therefore, this study investigated the protective effects of curcumin on BaP-induced DNA damage in rat stomach tissues. BaP (20 mg/kg/day) and curcumin (50, 100, or 200 mg/kg) were administered daily to Sprague-Dawley rats by oral gavage over 30 days. Curcumin was pre-administered before BaP exposure. All rats were euthanized, and liver, kidney, and stomach tissues were removed at 24 h after the last treatment. We observed that aspartate aminotransferase (AST), alanine aminotransferase (ALT), and glucose levels were significantly reduced in rats treated with high dose co-administration of curcumin (200 mg/kg) compared to BaP alone. The expression levels of cytochrome P450 (CYP) 1A1 and CYP1B1 were significantly increased in the liver of rats treated with BaP. However, co-administration of curcumin (200 mg/kg) with BaP markedly reduced CYP1A1 expression in a dose-dependent manner. Furthermore, plasma levels of BaP-diolepoxide (BPDE) and BaP metabolites were significantly reduced by co-administration of curcumin (200 mg/kg). Additionally, co-administration of curcumin (200 mg/kg) with BaP significantly reduced the formation of BPDE-I-DNA and 8-hydroxydeoxy guanosine (8-OHdG) adducts in the liver, kidney, and stomach tissues. The inhibition of these adduct formations were more prominent in the stomach tissues than in the liver. Overall, our observations suggest that curcumin might inhibit BaP-induced gastrointestinal tumorigenesis and shows promise as a chemopreventive agent.
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36
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Perrot-Applanat M, Vacher S, Pimpie C, Chemlali W, Derieux S, Pocard M, Bieche I. Differential gene expression in growth factors, epithelial mesenchymal transition and chemotaxis in the diffuse type compared with the intestinal type of gastric cancer. Oncol Lett 2019; 18:674-686. [PMID: 31289541 PMCID: PMC6546989 DOI: 10.3892/ol.2019.10392] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/21/2019] [Indexed: 12/17/2022] Open
Abstract
Gastric cancer (GC) is a highly heterogeneous disease and one of the major causes of cancer-related mortality worldwide. Diffuse-type gastric adenocarcinoma (or poorly cohesive- with independent cells) is characterized by aggressive behavior (rapid invasion, chemoresistance and peritoneal metastasis), as compared with intestinal-subtype adenocarcinoma. Diffuse subtype GC additionally has a substantially increasing incidence rate in Europe and the USA, and was often associated with younger age. Our objective was to analyze the expression and clinical significance of genes involved in several signaling pathways in diffuse-type GC. Tumors samples and non-malignant gastric tissues were obtained from patients with GC (diffuse-type and intestinal-subtype adenocarcinoma). The expression of 33 genes coding for proteins involved in four categories, growth factors and receptors, epithelial-mesenchymal transition, cell proliferation and migration, and angiogenesis was determined by reverse transcription-quantitative polymerase chain reaction. The expression of 22 genes was significantly upregulated in diffuse-type GC and two were downregulated (including CDH1) compared with normal tissues. Among these genes, acompared with intestinal-subtype adenocarcinoma, diffuse-type GC revealed elevated levels of IGF1 and IGF1R, FGF7 and FGFR1, ZEB2, CXCR4, CXCL12 and RHOA, and decreased levels of CDH1, MMP9 and MKI67. The expression of selected genes was compared with other genes and according to clinical parameters. Furthermore, TGF-β expression was significantly increased in linitis, a sub-population of diffusely infiltrating type associated with extensive fibrosis and tumor invasion. Our study identified new target genes (IGF1, FGF7, CXCR4, TG-β and ZEB2) whose expression is associated with aggressive phenotype of diffuse-type GC.
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Affiliation(s)
- Martine Perrot-Applanat
- INSERM U965, Lariboisiere Hospital, University of Paris-Diderot-Paris 7, 75010 Paris, France
| | - Sophie Vacher
- Department of Genetics, Pharmacogenomics Unit-Institut Curie, University of Paris-Descartes-Paris 5, 75005 Paris, France
| | - Cynthia Pimpie
- INSERM U965, Lariboisiere Hospital, University of Paris-Diderot-Paris 7, 75010 Paris, France
| | - Walid Chemlali
- Department of Genetics, Pharmacogenomics Unit-Institut Curie, University of Paris-Descartes-Paris 5, 75005 Paris, France
| | - Simon Derieux
- Department of Digestive and Oncology Surgery-Lariboisiere Hospital, University of Paris-Diderot-Paris 7, 75010 Paris, France
| | - Marc Pocard
- INSERM U965, Lariboisiere Hospital, University of Paris-Diderot-Paris 7, 75010 Paris, France
- Department of Digestive and Oncology Surgery-Lariboisiere Hospital, University of Paris-Diderot-Paris 7, 75010 Paris, France
| | - Ivan Bieche
- Department of Genetics, Pharmacogenomics Unit-Institut Curie, University of Paris-Descartes-Paris 5, 75005 Paris, France
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Korga A, Ostrowska M, Iwan M, Skierucha M, Józefczyk A, Pawłowski P, Dudka J, Maciejewski R, Sitarz R. Ethanol extracts of Allium sp. regulate cyclooxygenase-2 and E-cadherin expression in gastric cancer MKN74 cell line and enhance doxorubicin toxicity. Food Nutr Res 2019; 63:3449. [PMID: 31297043 PMCID: PMC6604903 DOI: 10.29219/fnr.v63.3449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/30/2019] [Accepted: 05/08/2019] [Indexed: 02/05/2023] Open
Abstract
Background Gastric cancer (GC) remains one of the leading causes of cancer-related death. Its aetiology is multifactorial, but the major risk factor is a high in salt diet. During gastric carcinogenesis, cadherin-1 (CDH1) down-expression and cyclooxygenase 2 (COX2) overexpression may be observed. The intensity of these alterations contributes to the GC invasion, its metastases and poor prognosis. As the diet plays a significant role in the aetiology of GC, it is reasonable to include the nutritional chemoprevention agents. One of the plant genus demonstrating chemoprotective properties is Allium genus, which includes garlic. The relationship between CDH1 and COX2 in GC cells treated with Allium species extract has never been evaluated. Methods In this study, the MKN28 and MKN74 GC cell lines were treated with ethanol extracts of Allium angulosum L., Allium lusitanicum Lam., Allium sativum L. (from Malaysia and Poland), Allium tibeticum Rendle and Allium ursinum L. The cytotoxicity of the extracts and their influence on COX2 and CDH1 mRNA and protein expression were evaluated as well as their influence on doxorubicin's (DOX) efficacy - a drug that has been used in GC treatment. Results Among the tested species, ethanol extracts of A. sativum L. (Poland and Malaysia), A. tibeticum Rendle and A. ursinum L. influenced the levels of CDH1 and COX2, but only in the MKN74 cell line. Thus, it is possible that tumours with increased COX2 expression will be more susceptible to garlic treatment. Observed phenomenon was independent of Allium extract's toxicity. In comparison to DOX, tested extracts were more toxic. Moreover, A. sativum revealed synergistic effect with the drug. Conclusion In conclusion, the results indicate the potential application of Allium genus to GC chemoprevention and treatment support through CDH restoration and COX2 downregulation. This issue needs further investigations as it might be used in clinics.
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Affiliation(s)
- Agnieszka Korga
- Department of Medical Biology, Medical University of Lublin, Lublin, Poland
| | - Marta Ostrowska
- Department of Toxicology, Medical University of Lublin, Lublin, Poland
| | - Magdalena Iwan
- Department of Medical Biology, Medical University of Lublin, Lublin, Poland
| | - Małgorzata Skierucha
- Department of Anatomy, Medical University of Lublin, Lublin, Poland.,Surgical Oncology Department, Medical University of Lublin, Lublin, Poland
| | - Aleksandra Józefczyk
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, Lublin, Poland
| | - Piotr Pawłowski
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, Lublin, Poland
| | - Jarosław Dudka
- Department of Toxicology, Medical University of Lublin, Lublin, Poland
| | | | - Robert Sitarz
- Department of Anatomy, Medical University of Lublin, Lublin, Poland
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Mohamed WA, Schaalan MF, Ramadan B. The expression profiling of circulating miR-204, miR-182, and lncRNA H19 as novel potential biomarkers for the progression of peptic ulcer to gastric cancer. J Cell Biochem 2019; 120:13464-13477. [PMID: 30945348 DOI: 10.1002/jcb.28620] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/17/2019] [Accepted: 02/28/2019] [Indexed: 12/17/2022]
Abstract
Deregulation of noncoding RNAs, microRNAs (miRNAs) and long noncoding RNA (lncRNA), are implicated in the initiation and progression of gastric cancer (GC). This study is a pilot case-control study carried out on 75 subjects, 40 of them were Helicobacter pylori-gastric ulcer patients and 35 were GC patients recruited from the Gastrointestinal Endoscopy Unit in Al-Kasr Al-Aini Hospital, Cairo University in Egypt. Real-time PCR was performed to evaluate the expression level of serum miR-204, miR-182, and lncRNA H19 in patients with peptic ulcer-progressed GC vs nonprogressed peptic ulcer patients. Fibroblast growth factor 18 (FGF-18)/FGF receptor 2 (FGFR2) expression and their downstream immunological and inflammatory signaling markers were assessed and their association with the addressed noncoding RNAs investigated. As regards miR-204 and miR-182, they were significantly increased (12.5 and 2.6 folds, respectively) in GU samples, compared with those of healthy control levels. The elevated levels of these miRNAs were significantly de-escalated in GC samples compared with GU and the fold decrease valued 2.2 fold for miR-204 and 1.8 folds for miR-182. On the other hand, the significant escalation in the level of lnRNA H19 in GU recorded a 16.6 fold increase and further elevation in its levels was evident in GC samples. The herein assessed miRNAs are correlated with disease duration and FGFR2 with miR-182 being significantly correlated with all inflammatory markers, TAC, INF-γ, matrix metallopeptidase 9, and FGF-18. In terms of diagnostic accuracy of assessed miRNAs (stages III to IV), the receiver operating characteristic analysis indicated that serum lncRNA H19 showed the highest diagnostic accuracy (95.5%), specificity (100%), and sensitivity (90.9%), compared with miR-204 and miR-182, which showed the same specificity (60%), sensitivity (72.7%), and diagnostic accuracy (68.8%). Our findings conclude that lnRNA H19, miR-204, and miR-182 may function as novel prospective plasma biomarkers to detect GC and its progression from H. pylori-peptic ulcer, which would be helpful to improve the theranostics of GC.
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Affiliation(s)
- Waleed A Mohamed
- Department of Chemistry, Kasr El Aini Teaching Hospital, Cairo University, Cairo, Egypt
| | - Mona F Schaalan
- Department of Clinical Pharmacy and Pharmacy Practice, Clinical and Translational Research Unit, Faculty of Pharmacy, Misr International University, Cairo, Egypt
| | - Basma Ramadan
- Department of Physiology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
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A Systems Pharmacology Approach for Identifying the Multiple Mechanisms of Action of the Wei Pi Xiao Decoction for the Treatment of Gastric Precancerous Lesions. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:1562707. [PMID: 30854000 PMCID: PMC6378068 DOI: 10.1155/2019/1562707] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 01/08/2019] [Indexed: 02/07/2023]
Abstract
The Wei Pi Xiao (WPX) decoction, based on the theory of traditional Chinese medicine, has been widely used for the treatment of gastric precancerous lesions (GPL). Although WPX is known to be effective for the treatment of GPL, its active ingredients, cellular targets, and the precise molecular mechanism of action are not known. This study aimed to identify the multiple mechanisms of action of the WPX decoction in the treatment of GPL. The active compounds, drug targets, and the key pathways involved in the therapeutic effect of WPX in the treatment of GPL were analyzed by an integrative analysis pipeline. The information pertaining to the compounds present in WPX and their disease targets was obtained from TCMSP and GeneCards, respectively. The mechanisms underlying the therapeutic effect of WPX were investigated with gene ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. A total of 82 bioactive compounds and 146 related targets were identified in this study. Following target analyses, the targets were further mapped to 26 key biological processes and 21 related pathways to construct a target-pathway network and an integrated GPL pathway. The study demonstrated that the WPX formula primarily treats the dysfunctions of GPL arising from cell proliferation, apoptosis, and mucosal inflammation, which offered a novel insight into the pathogenesis of GPL and revealed the molecular mechanism underlying the therapeutic effects of the WPX formula in GPL. This study offers a novel approach for the systematic investigation of the mechanisms of action of herbal medicines, which will provide an impetus to the GPL drug development pipeline.
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Moghmi M, Arjmandi A, Aghili K, Jafari M, Zare-Shehneh M, Rastegar S, Abolbaghaei SM, Neamatzadeh H. ASSOCIATION OF INTERLEUKIN-10 -592A>C AND -819T>C POLYMORPHISMS WITH GASTRIC CANCER RISK: A SYSTEMATIC REVIEW AND META-ANALYSIS OF 44 CASE-CONTROL STUDIES. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2019; 32:e1415. [PMID: 30624524 PMCID: PMC6323628 DOI: 10.1590/0102-672020180001e1415] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 10/11/2018] [Indexed: 12/14/2022]
Abstract
INTRODUCTION A series of studies have evaluated the association between -592A>C and -819T>C polymorphisms in the promoter regions of Interleukin-10 (IL-10) and gastric cancer (GC) risk. However, the results remain inconclusive. OBJECTIVE To better understand the association of the polymorphisms with GC risk, we performed a comprehensive meta-analysis. METHOD An electronic search was performed of several databases to identify relevant studies up to April 2018. RESULTS A total of 44 case-control studies, including 26 studies on IL-10 -592A>C (5,332 cases and 8,272 controls) and 18 studies on IL-10 -819T>C (3,431 cases and 6,109 controls) were selected. Overall, -592A>C polymorphism was associated with the risk of GC under the heterozygote model (OR=1.153, 95% CI=1.020-1.305, p=0.023), but not -819T>C polymorphism. When stratified by ethnicity, significant association was only observed in the Asians under the allele model (OR=1.153, 95% CI=1.007-1.320, p=0.040) and the heterozygote model (OR=1.218, 95% CI=1.076-1.379, p=0.002) for -592A>C. CONCLUSION The current meta-analysis results inconsistent with previous meta-analyses; showed that the IL-10 -592A>C polymorphism, but not -819T>C polymorphism, may be contributed to the susceptibility of GC in overall and Asian populations.
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Affiliation(s)
- Mansour Moghmi
- Shahid Sadoughi University of Medical Sciences, Pathology, Yazd, Yazd
| | - Amir Arjmandi
- Shahid Sadoughi University of Medical Sciences, Medical Genetics, Yazd, Yazd
| | - Kazem Aghili
- Shahid Sadoughi University of Medical Sciences, Radiology, Yazd, Yazd
| | - Mohammadali Jafari
- Shahid Sadoughi University of Medical Sciences, Emergency Medicine, Yazd, Yazd
| | - Masoud Zare-Shehneh
- Shahid Sadoughi University of Medical Sciences, Medical Genetics, Yazd, Yazd
| | - Shohreh Rastegar
- Shahid Sadoughi University of Medical Sciences, Anesthesiology, Yazd, Yazd
| | | | - Hossein Neamatzadeh
- Shahid Sadoughi University of Medical Sciences, Medical Genetics, Yazd, Yazd
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Lu Q, Ma X, Li Y, Song W, Zhang L, Shu Y, Wan B. Overexpression of FOXS1 in gastric cancer cell lines inhibits proliferation, metastasis, and epithelial-mesenchymal transition of tumor through downregulating wnt/β-catenin pathway. J Cell Biochem 2018; 120:2897-2907. [PMID: 30500980 DOI: 10.1002/jcb.26821] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 02/28/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND Expression of forkhead box (FOX) superfamily members has been shown to be decreased in cancer, which was linked to poor prognosis of patients. The aim of this study was to investigate the expression of a new FOX superfamily member, FOXS1, in gastric cancer, and the influence of FOXS1 overexpression on the tumorigenesis of gastric cancer cells. The underlying molecular mechanism was also investigated. MATERIALS AND METHODS FOXS1 expression levels were firstly measured in 15 paired gastric cancer and peritumor tissue using quantitative polymerase chain reaction or immunohistochemistry. Secondly, FOXS1 overexpression models were established in two gastric cancer cell lines (SNU-216 and AGS) and FOXS1 knockdown model was established in SNU-638 gastric cancer cell line. Markers for cell proliferation, metastasis, cell cycle status, and wnt/β-catenin pathway were evaluated. Influence of FOXS1 overexpression on tumorigenesis was further evaluated in xenograft model. RESULTS Expression of FOXS1 was significantly decreased in gastric cancer tissue in both messenger RNA and protein levels, compared with peritumor tissue. Our results showed that compared to cell lines transfected with negative control, gastric cancer cell lines with FOXS1 overexpression showed suppressed cell proliferation, metastasis, and increased ratio of G0/G1 phase. Xenograft model also showed suppressed tumor growth in FOXS1 overexpression group. Epithelial-mesenchymal transition was also inhibited when FOXS1 was overexpressed, which was indicated by an increase of E-cadherin expression and decrease in vimentin expression. Further investigation showed that expression of β-catenin was decreased, together with decreased expression in downstream signaling factors, c-Myc and cyclin-D1 in FOXS1 overexpression cell lines. On the other hand, knockdown of FOXS1 showed opposite trends in the changes of those markers for cell proliferation, metastasis, cell cycle status, and wnt/β-catenin pathway, compared with FOXS1 overexpression. CONCLUSION In conclusion, the present study showed that FOXS1 expression is downregulated in most GC cases in our cohort, and this loss of expression may promote cell proliferation and metastasis through upregulation of wnt/β-catenin pathway.
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Affiliation(s)
- Qiyu Lu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Xudong Ma
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Yijun Li
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Wanhong Song
- Infection Management Office, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Lingshu Zhang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Yixiong Shu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Baosheng Wan
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
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Wu Y, Tian S, Chen Y, Ji M, Qu Y, Hou P. miR-218 inhibits gastric tumorigenesis through regulating Bmi-1/Akt signaling pathway. Pathol Res Pract 2018; 215:243-250. [PMID: 30420101 DOI: 10.1016/j.prp.2018.10.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/14/2018] [Accepted: 10/26/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Previous studies indicated that miR-218 was deregulated in gastric cancer patients and correlated with tumor invasion and prognosis. The aim of this study was to clarify the effect of miR-218 on the malignant behavior of gastric cancer and its role in regulating Bmi-1/Akt signaling pathway. MATERIALS AND METHODS We used miR-218 mimic to transfect gastric cancer cell lines AGS and SGC-7901, and the overexpression efficiency was validated using qRT-PCR assay. MTT assay and Transwell chamber system were performed to detect the effect of miR-218 on cell proliferation, invasion and migration on gastric cancer. Western blot and qRT-PCR assay was used to test the role of miR-218 in regulating Bmi-1/Akt signaling pathway. RESULTS As shown in our research, ectopic expression of miR-218 in gastric cancer cells inhibits the proliferation, invasion and migration of gastric cancer cells. In addition, miR-218 re-expression inhibits the expression of Bmi-1 and its downstream target p-Akt473, as well as MMPs and EMT process. CONCLUSIONS miR-218 inhibits the proliferation, invasion and migration of gastric cancer cells through modulating EMT process and the expression of MMPs via Bmi-1/Akt signaling pathway.
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Affiliation(s)
- Yongxing Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Sijia Tian
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Yijun Chen
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Meiju Ji
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China
| | - Yiping Qu
- Department of Radio-Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China.
| | - Peng Hou
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, PR China.
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Diverse Expression of IL-32 in Diffuse and Intestinal Types of Gastric Cancer. Gastroenterol Res Pract 2018; 2018:6578273. [PMID: 30402092 PMCID: PMC6193340 DOI: 10.1155/2018/6578273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/12/2018] [Indexed: 01/11/2023] Open
Abstract
Introduction Gastric cancer (GC) represents one of the most common cancers worldwide, frequently diagnosed at advanced stages with poor prognosis, indicating on need for new diagnostic and prognostic markers. The aim of the study was to determine the expression of IL-32, proinflammatory and angiogenic mediators, in patients with diffuse and intestinal gastric cancer and the relationship with clinicopathological aspects. Material and Methods The tissue samples of diffuse and intestinal types of tumor of 70 patients with gastric cancer were analyzed. Expression of IL-32, VEGF, IL-17, and CD31 was measured by immunohistochemistry. Results IL-32 expression was significantly lower in tissue samples from patients with diffuse type of gastric cancer that is also a severe and more progressive form (TNM stages III and IV, poor histological differentiation, and higher nuclear grade III). Expression of IL-17 was also decreased in patients with diffuse type of gastric cancer. Microvascular density was diminished in diffuse type of gastric cancer. Conclusions Downregulated expression of IL-32 in tumor tissue of patients with diffuse type of gastric cancer may implicate on its role in limiting ongoing proinflammatory and proangiogenic processes. This emphasizes on unrecognized role of IL-32 in biology of diffuse type of gastric cancer.
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44
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Expression profiles of histone modification genes in gastric cancer progression. Mol Biol Rep 2018; 45:2275-2282. [PMID: 30250993 DOI: 10.1007/s11033-018-4389-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/14/2018] [Indexed: 12/24/2022]
Abstract
Gastric cancer (GC) development can be attributed to several risk factors including atrophic gastritis (AG), intestinal metaplasia (IM), and the presence of Helicobacter pylori (HP). Also, histone modification is an epigenetic mechanism that plays a pivotal role in GC carcinogenesis. In this preliminary study, we aimed to describe the expression profiles of histone modification in the AG, IM, and GC patient groups. A total of 80 patients with AG (n = 27), IM (n = 25), and GC (n = 28) with an additional 20 control subjects were included in the study. Expression profiles of three histone phosphorylation genes (PAK1, NEK6, and AURKA) and five histone deacetylation genes (HDACs 1, 2, 3, 5, and 7) were examined based on the results of Real Time qPCR method. It was observed that AURKA and HDAC2 genes were significantly overexpressed in all groups compared to the control (P < 0.05). In GC patients, overexpression of HDAC2 gene was detected in the absence of metastasis, and overexpression of AURKA, HDAC2, and NEK6 genes was detected in the presence of metastasis. When cancer involvements were compared, significant overexpression of the HDAC2 gene was noted in overall and corpus involvements (P < 0.05). In addition, overexpression of AURKA, NEK6, HDAC1, and HDAC2 genes and underexpression of HDAC5 gene were detected in the antrum involvement (P < 0.05). In conclusion, decreased expression of HDAC5 in GC is reported for the first time in this study, while supporting the existing literature in AURKA, NEK6, HDAC1, and HDAC2 up regulations during GC development.
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Ghadami E, Nikbakhsh N, Fattahi S, Kosari‐Monfared M, Ranaee M, Taheri H, Amjadi‐Moheb F, Godazandeh G, Shafaei S, Nosrati A, Pilehchian Langroudi M, Samadani AA, Amirbozorgi G, Mirnia V, Akhavan‐Niaki H. Epigenetic alterations of
CYLD
promoter modulate its expression in gastric adenocarcinoma: A footprint of infections. J Cell Physiol 2018; 234:4115-4124. [DOI: 10.1002/jcp.27220] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 07/16/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Elham Ghadami
- Department of Genetics, Faculty of Medicine Babol University of Medical Sciences Babol Iran
- Department of Genetics Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences Babol Iran
| | - Novin Nikbakhsh
- Department of Surgery Rouhani Hospital, Babol University of Medical Sciences Babol Iran
| | - Sadegh Fattahi
- Department of Genetics Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences Babol Iran
- Department of Molecular Biology North Research Center of Pasteur Institute Amol Iran
| | | | - Mohammad Ranaee
- Department of Pathology Rouhani Hospital, Babol University of Medical Sciences Babol Iran
| | - Hassan Taheri
- Department of Internal Medicine Rouhani Hospital, Babol University of Medical Sciences Babol Iran
| | - Fatemeh Amjadi‐Moheb
- Department of Genetics, Faculty of Medicine Babol University of Medical Sciences Babol Iran
| | - Gholamali Godazandeh
- Department of Thoracic Surgery Imam Khomeini Hospital, Mazandaran University of Medical Sciences Sari Iran
| | - Shahryar Shafaei
- Department of Pathology Rouhani Hospital, Babol University of Medical Sciences Babol Iran
| | - Anahita Nosrati
- Department of Pathology Imam Khomeini Hospital, Mazandaran University of Medical Sciences Sari Iran
| | | | - Ali Akbar Samadani
- Department of Genetics Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences Babol Iran
- Department of Genetics Gastrointestinal and Liver Diseases Research Center (GLDRC), Guilan University of Medical Sciences Rasht Iran
| | - Galia Amirbozorgi
- Department of Molecular Biology North Research Center of Pasteur Institute Amol Iran
| | - Vahideh Mirnia
- Faculty of Paramedicine Babol University of Medical Sciences Babol Iran
| | - Haleh Akhavan‐Niaki
- Department of Genetics, Faculty of Medicine Babol University of Medical Sciences Babol Iran
- Department of Genetics Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences Babol Iran
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Kosari‐Monfared M, Nikbakhsh N, Fattahi S, Ghadami E, Ranaei M, Taheri H, Amjadi‐Moheb F, Godazandeh GA, Shafaei S, Pilehchian‐Langroudi M, Samadani AA, Akhavan‐Niaki H. CTNNBIP1
downregulation is associated with tumor grade and viral infections in gastric adenocarcinoma. J Cell Physiol 2018; 234:2895-2904. [DOI: 10.1002/jcp.27106] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/29/2018] [Indexed: 01/06/2023]
Affiliation(s)
- Mohadeseh Kosari‐Monfared
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
- Department of GeneticsFaculty of Medicine, Babol University of Medical SciencesBabol Iran
| | - Novin Nikbakhsh
- Cancer Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
| | - Sadegh Fattahi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
- Molecular Biology Laboratory, North Research Center of Pasteur InstituteAmol Iran
| | - Elham Ghadami
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
- Department of GeneticsFaculty of Medicine, Babol University of Medical SciencesBabol Iran
| | - Mohammad Ranaei
- Department of PathologyRouhani Hospital, Babol University of Medical SciencesBabol Iran
| | - Hassan Taheri
- Department of Internal MedicineRouhani Hospital, Babol University of Medical SciencesBabol Iran
| | - Fatemeh Amjadi‐Moheb
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
- Department of GeneticsFaculty of Medicine, Babol University of Medical SciencesBabol Iran
| | - Gholam A. Godazandeh
- Department of SurgeryImam Hospital, Mazandaran University of Medical SciencesSari Iran
| | - Shahryar Shafaei
- Department of PathologyRouhani Hospital, Babol University of Medical SciencesBabol Iran
| | - Maryam Pilehchian‐Langroudi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
- Department of GeneticsFaculty of Medicine, Babol University of Medical SciencesBabol Iran
| | - Ali Akbar Samadani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
- Gastrointestinal and Liver Diseases Research Center (GLDRC)Guilan University of Medical SciencesRasht Iran
| | - Haleh Akhavan‐Niaki
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
- Department of GeneticsFaculty of Medicine, Babol University of Medical SciencesBabol Iran
- Cancer Research Center, Health Research Institute, Babol University of Medical SciencesBabol Iran
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47
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Xia Y, Yan Z, Wan Y, Wei S, Bi Y, Zhao J, Liu J, Liao DJ, Huang H. Knockdown of long noncoding RNA GHET1 inhibits cell‑cycle progression and invasion of gastric cancer cells. Mol Med Rep 2018; 18:3375-3381. [PMID: 30066922 PMCID: PMC6102745 DOI: 10.3892/mmr.2018.9332] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 07/19/2018] [Indexed: 12/17/2022] Open
Abstract
GHET1 is an oncogenic long noncoding RNA (lncRNA) that promotes the proliferation and invasion of many malignant cell types. However, the function and underlying mechanisms of lncRNA GHET1 in gastric cancer are not fully understood. In this study, the expression of GHET1 was investigated in gastric cancer and it was determined whether GHET1 may potentially be used as a biomarker for the disease. The gastric cancer cell lines MGC‑803 and AGS were transfected with GHET1‑directed small interfering RNA (siRNA) and the changes in phenotype and cell‑cycle‑related molecules were assessed. The downregulation of GHET1 induced G0/G1‑phase arrest in gastric cancer cells and inhibited their proliferation, migration, and invasion. DNA synthesis and the expression of proliferating cell nuclear antigen (PCNA) decreased, which was consistent with the results of the CCK‑8 assay. The levels of specific cell‑cycle regulators were determined and the expression and activities of positive cell‑cycle regulators (cyclin D, CDK4, CDK6, cyclin E, CDK2) were reduced, whereas those of a negative regulator (P21) were increased in GHET1‑knockdown cells. Taken together, the present findings show that the downregulation of GHET1 not only inhibits the migration and invasion of gastric cancer cells, but also inhibits their proliferation, at least in part by upregulating P21 expression and downregulating cyclin and CDK expression to inhibit the G0/G1 to S phase transition. The present findings may provide a potential therapeutic target for gastric cancer.
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Affiliation(s)
- Ying Xia
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Zhiqiang Yan
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Ying Wan
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Sixi Wei
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Ying Bi
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Juanjuan Zhao
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Juanjuan Liu
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Dezhong Joshua Liao
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Hai Huang
- Department of Clinical Biochemistry, School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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48
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Vainer N, Dehlendorff C, Johansen JS. Systematic literature review of IL-6 as a biomarker or treatment target in patients with gastric, bile duct, pancreatic and colorectal cancer. Oncotarget 2018; 9:29820-29841. [PMID: 30038723 PMCID: PMC6049875 DOI: 10.18632/oncotarget.25661] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 06/04/2018] [Indexed: 12/21/2022] Open
Abstract
Gastrointestinal cancer (GI) is a major health problem. Patients with gastric, pancreatic, colorectal, bile duct and gall bladder cancer often have advanced disease at the time of diagnosis and are generally difficult to cure, resulting in a dismal prognosis for most patients. Inflammation plays an important role in the development and growth of cancer, which has led to a growing interest in the pro-inflammatory cytokine interleukin 6 (IL-6). The aim of the present review was to evaluate the clinical use of IL-6 as a biomarker or therapeutic target in patients with GI cancer. We did a systematic review of studies (1993-2018), to assess the clinical use of IL-6 as a diagnostic, prognostic or predictive tumor biomarker or as a potential therapeutic target. This review includes 48 studies and 5316 patients. Circulating IL-6 levels appear to be an independent prognostic biomarker in patients with GI cancer, with high IL-6 levels associated with short overall survival (OS). The results for colorectal cancer were too ambiguous to give conclusive results. IL-6 seemed to be a marker for some of the clinical characteristics of GI cancer, and may have a role in the diagnostic workup in general practice. No published studies have examined the use of IL-6 as a therapeutic target in pancreatic, gastric, bile duct or colorectal cancer. In conclusion, high circulating IL-6 was associated with short OS in most studies in GI cancer patients. Whether inhibition of IL-6 would decrease GI cancer symptoms and increase quality of life is unknown.
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Affiliation(s)
- Noomi Vainer
- Department of Oncology, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Christian Dehlendorff
- Statistics and Pharmacoepidemiology, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Julia S Johansen
- Department of Oncology, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark.,Institute of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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49
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Inhibition of CREPT restrains gastric cancer growth by regulation of cycle arrest, migration and apoptosis via ROS-regulated p53 pathway. Biochem Biophys Res Commun 2018; 496:1183-1190. [PMID: 29402413 DOI: 10.1016/j.bbrc.2018.01.167] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 01/27/2018] [Indexed: 01/07/2023]
Abstract
CREPT (cell-cycle related and expression-elevated protein in tumor) was reported to be associated with growth of several human cancers; however, its clinical significance and regulatory mechanism still remain unclear in human gastric cancer. In the present study, we found CREPT was significantly increased in gastric cancer tissues compared to the matched adjacent normal tissues. CREPT silence inhibited the proliferation of gastric cancer cells through inducing G0/G1 phase cell cycle arrest, which was linked to the reduction of Cyclin D1 and Cyclin D-dependent kinase 4 (CDK4), and the elevation of p53 and p21. In addition, CREPT knockdown (KD) decreased migration of gastric cancer cells through up-regulating E-cadherin and down-regulating vimentin, N-cadherin and matrix metalloproteinase 1 (MMP-1) expressions. Further, CREPT KD induced apoptosis in gastric cancer cells, as evidenced by the increase of cleaved Caspase-3 and poly (ADP-ribose) polymerase (PARP). Intriguingly, suppressing p53 expressions significantly abolished CREPT silence-induced apoptosis, and reduction of cell viability. Moreover, CREPT KD caused reactive oxygen species (ROS) generation using discounted cash flow (DCF) analysis, which was reversed by ROS scavenger, N-acetyl-l-cysteine (NAC), pretreatment. Of note, NAC pretreatment abrogated apoptotic cell death in CREPT KD gastric cancer cells. In vivo, suppressing CREPT reduced the gastric tumor growth in gastric cancer xenograft models. Altogether, our results provided a novel insight into CREPT in regulating gastric cancer progression through apoptosis regulated by ROS/p53 pathways.
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50
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Sugai T, Eizuka M, Arakawa N, Osakabe M, Habano W, Fujita Y, Yamamoto E, Yamano H, Endoh M, Matsumoto T, Suzuki H. Molecular profiling and comprehensive genome-wide analysis of somatic copy number alterations in gastric intramucosal neoplasias based on microsatellite status. Gastric Cancer 2018; 21:765-775. [PMID: 29468422 PMCID: PMC6097076 DOI: 10.1007/s10120-018-0810-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 02/09/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND We attempted to identify the molecular profiles of gastric intramucosal neoplasia (IMN; low-grade dysplasia, LGD; high-grade dysplasia, HGD; intramucosal cancer, IMC) by assessing somatic copy number alterations (SCNAs) stratified by microsatellite status (microsatellite stable, MSS; microsatellite instable, MSI). Thus, microsatellite status was determined in 84 tumors with MSS status and 16 tumors with MSI status. METHODS One hundred differentiated type IMNs were examined using SCNAs. In addition, genetic mutations (KRAS, BRAF, PIK3CA, and TP53) and DNA methylation status (low, intermediate and high) were also analyzed. Finally, we attempted to identify molecular profiles using a hierarchical clustering analysis. RESULTS Three patterns could be categorized according to SCNAs in IMNs with the MSS phenotype: subgroups 1 and 2 showing a high frequency of SCNAs, and subgroup 3 displaying a low frequency of SCNAs (subgroup 1 > 2 > 3 for SCNA). Subgroup 1 could be distinguished from subgroup 2 by the numbers of total SCNAs (gains and losses) and SCN gains (subgroup 1 > 2). The SCNA pattern of LGD was different from that of HGD and IMC. Moreover, IMNs with the MSI phenotype could be categorized into two subtypes: high frequency of SCNAs and low frequency of SCNAs. Genetic mutations and DNA methylation status did not differ among subgroups in IMNs. CONCLUSION Molecular profiles stratified by SCNAs based on microsatellite status may be useful for elucidation of the mechanisms of early gastric carcinogenesis.
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Affiliation(s)
- Tamotsu Sugai
- 0000 0000 9613 6383grid.411790.aDepartment of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Makoto Eizuka
- 0000 0000 9613 6383grid.411790.aDepartment of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Noriyuki Arakawa
- 0000 0000 9613 6383grid.411790.aDepartment of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Mitsumasa Osakabe
- 0000 0000 9613 6383grid.411790.aDepartment of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Wataru Habano
- 0000 0000 9613 6383grid.411790.aDepartment of Pharmacodynamics and Molecular Genetics, School of Pharmacy, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Yasuko Fujita
- 0000 0000 9613 6383grid.411790.aDepartment of Molecular Diagnostic Pathology, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Eiichiro Yamamoto
- 0000 0001 0691 0855grid.263171.0Department of Molecular Biology, Sapporo Medical University, School of Medicine, Cyuuouku, Sapporo, 060-0061 Japan
| | - Hiroo Yamano
- 0000 0001 0691 0855grid.263171.0Department of Gastroenterology, Sapporo Medical University, School of Medicine, Cyuuouku, Sapporo, 060-0061 Japan
| | - Masaki Endoh
- 0000 0000 9613 6383grid.411790.aDivision of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Takayuki Matsumoto
- 0000 0000 9613 6383grid.411790.aDivision of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka, 020-8505 Japan
| | - Hiromu Suzuki
- 0000 0001 0691 0855grid.263171.0Department of Molecular Biology, Sapporo Medical University, School of Medicine, Cyuuouku, Sapporo, 060-0061 Japan
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