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Ataseven D, Taştemur Ş, Yulak F, Karabulut S, Ergul M. GSK461364A suppresses proliferation of gastric cancer cells and induces apoptosis. Toxicol In Vitro 2023; 90:105610. [PMID: 37150268 DOI: 10.1016/j.tiv.2023.105610] [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: 01/26/2023] [Revised: 04/11/2023] [Accepted: 05/03/2023] [Indexed: 05/09/2023]
Abstract
Polo-like kinase-1 (PLK1) is crucial in regulating cell division and has been shown to have an oncogenic function in several cancers. Since PLK1 overexpression is closely related to tumorigenesis and has been correlated with poor clinical outcomes, specific inhibition of PLK1 in cancer cells is a promising approach for developing new anticancer drugs. In this context, the aim of the present study was to evaluated the potential cytotoxic effects of GSK461364A, a competitive inhibitor for PLK1, in gastric cancer cell line SNU-1 cells and explored its cytotoxic mechanism. The cells were exposed to GSK461364A at different concentrations ranging from 1 to 40 μM for 24 h, and it showed considerable cytotoxicity with an IC50 value of 4.34 μM. The treatment of SNU-1 cells with GSK461364A results in cell cycle arrest at the G2/M phase, decreased mitochondrial membrane potential, and increased apoptosis as indicated by Annexin V binding assay. In addition, GSK461364A treatment significantly increased the total oxidant (TOS) level, a signal of oxidative stress, and increased cleaved PARP and 8-oxo-dG levels as an indicator of DNA damage. ELISA experiments evaluating Bax, BCL-2, and cleaved caspase-3 also confirmed the apoptotic effect of GSK461364A. Current findings suggest that GSK461364A may be a chemotherapeutic agent in patients with gastric cancer. Nevertheless, more research is needed to evaluate GSK461364A as a cancer treatment drug.
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Affiliation(s)
- Dilara Ataseven
- Department of Pharmacology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Şeyma Taştemur
- Department of Internal Medicine, Sivas Numune Hospital, Sivas, Turkey
| | - Fatih Yulak
- Departments of Physiology, School of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Sebahattin Karabulut
- Department of Medical Services and Techniques, Vocational School of Health Services, Sivas Cumhuriyet University, Sivas, Turkey
| | - Mustafa Ergul
- Department of Biochemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas, Turkey.
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2
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HDAC4 promotes the growth and metastasis of gastric cancer via autophagic degradation of MEKK3. Br J Cancer 2022; 127:237-248. [PMID: 35637410 PMCID: PMC9296555 DOI: 10.1038/s41416-022-01805-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 03/12/2022] [Accepted: 03/24/2022] [Indexed: 11/09/2022] Open
Abstract
Background Histone deacetylases (HDACs) have been shown to be involved in tumorigenesis, but their precise role and molecular mechanisms in gastric cancer (GC) have not yet been fully elucidated. Methods Bioinformatics screening analysis, qRT-PCR, and immunohistochemistry (IHC) were used to identify the expression of HDAC4 in GC. In vitro and in vivo functional assays illustrated the biological function of HDAC4. RNA-seq, GSEA pathway analysis, and western blot revealed that HDAC4 activated p38 MAPK signalling. Immunofluorescence, western blot, and IHC verified the effect of HDAC4 on autophagy. ChIP and dual-luciferase reporter assays demonstrated that the transcriptional regulation mechanism of HDAC4 and ATG4B. Results HDAC4 is upregulated in GC and correlates with poor prognosis. In vitro and in vivo assays showed that HDAC4 contributes to the malignant phenotype of GC cells. HDAC4 inhibited the MEF2A-driven transcription of ATG4B and prevented MEKK3 from p62-dependent autophagic degradation, thus activating p38 MAPK signalling. Reciprocally, the downstream transcription factor USF1 enhanced HDAC4 expression by regulating HDAC4 promoter activity, forming a positive feedback loop and continuously stimulating HDAC4 expression and p38 MAPK signalling activation. Conclusion HDAC4 plays an oncogenic role in GC, and HDAC4-based targeted therapy would represent a novel strategy for GC treatment.
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Li Y, Li XY, Li LX, Zhou RC, Sikong Y, Gu X, Jin BY, Li B, Li YQ, Zuo XL. S100A10 Accelerates Aerobic Glycolysis and Malignant Growth by Activating mTOR-Signaling Pathway in Gastric Cancer. Front Cell Dev Biol 2020; 8:559486. [PMID: 33324631 PMCID: PMC7726224 DOI: 10.3389/fcell.2020.559486] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/05/2020] [Indexed: 12/17/2022] Open
Abstract
S100 calcium-binding protein A10 (S100A10) is crucially involved in the tumorigenesis of multiple malignant tumors. Reprogrammed glucose metabolism is emerging as a hallmark of various human cancers. However, the function of S100A10 in aerobic glycolysis is unclear. The expression of S100A10 was analyzed using the Oncomine database, Gene Expression Profiling Interactive Analysis (GEPIA), The Cancer Genome Atlas (TCGA), and the UALCAN cancer database. Prognostic analysis was performed using the Kaplan-Meier Plotter. The correlation between S100A10 and key glycolytic factors was assessed by GEPIA. The glycolysis level was examined by determining glucose consumption, lactate production, adenosine triphosphate production, cellular oxygen consumption rate, and extracellular acidification rate. Cell apoptosis was investigated by flow cytometry. Colony formation and BrdU assays were performed to detect cell proliferation. A subcutaneous xenograft mouse model was established to evaluate the effects of S100A10 in vivo. Gene Set Enrichment Analysis and western blotting were performed to explore the downstream signaling pathway. S100A10 was significantly upregulated in gastric cancer. Its expression was associated with poor survival. S100A10 increased glucose consumption, lactate production, and the switch from oxidative phosphorylation to aerobic glycolysis. S100A10 promoted malignant proliferation and suppressed cell apoptosis in gastric cancer. S100A10 activated the mTOR pathway by interacting with annexin A2 (ANXA2) to accelerate tumor glycolysis, resulting in tumor malignant progression. S100A10 contributed to aerobic glycolysis and accelerated malignant growth by modulating the Src/ANXA2/AKT/mTOR signaling pathway. Thus, S100A10 may have pivotal roles in gastric cancer.
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Affiliation(s)
- Yan Li
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Xiao-Yu Li
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Li-Xiang Li
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Ru-Chen Zhou
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Yinhe Sikong
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Xiang Gu
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Bi-Ying Jin
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Bing Li
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Yan-Qing Li
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
| | - Xiu-Li Zuo
- Department of Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Laboratory of Translational Gastroenterology, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China.,Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital, Cheloo College of Medicine, Shandong University, Jinan, China
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4
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Gong Z, Zhang J, Guo W. Tumor purity as a prognosis and immunotherapy relevant feature in gastric cancer. Cancer Med 2020; 9:9052-9063. [PMID: 33030278 PMCID: PMC7724479 DOI: 10.1002/cam4.3505] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 07/27/2020] [Accepted: 09/16/2020] [Indexed: 01/03/2023] Open
Abstract
Tumor microenvironment (TME) has been illustrated their clinic pathological significance in predicting outcomes and therapeutic efficacy by more and more studies. Tumor purity, which reflects the features of TME, is defined as the proportion of cancer cell in the tumor tissue. However, the current staging and prognostic prediction system in gastric cancer (GC) paid little attention to TME. Therefore, we carried out the study to explore the role of tumor purity in GC. We retrospectively collected the clinical and transcriptomic data from four public data sets (n = 1340), GSE15459, GSE26253, GSE62254, and The Cancer Genome Atlas (TCGA). About 34 GC patients from Fudan University Shanghai Cancer Center (FUSCC) were assigned as an independent validation group. Tumor purity was measured by a computational method. Low tumor purity was associated with unfavorable prognosis, upregulated EMT and stemness pathways, more infiltrating of Tregs, M1 and M2 macrophages and a higher expression level of various immune checkpoints and chemokines recruiting immune suppressive cells. Our study indicates low tumor purity in GC was associated with unfavorable prognosis and immune‐evasion phenotype. Further investigations toward tumor purity in GC may contribute to prognosis prediction and the decision of therapy strategies.
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Affiliation(s)
- Zhe Gong
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, P.R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, P.R. China
| | - Jieyun Zhang
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, P.R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, P.R. China
| | - Weijian Guo
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, P.R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, P.R. China
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Is it worthy of adding dissection of the superior mesenteric vein lymph node (14v) to standard D2 gastrectomy for distal gastric cancers with No. 6 lymph node metastasis? Clin Transl Oncol 2019; 21:1699-1706. [PMID: 30977046 DOI: 10.1007/s12094-019-02103-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/22/2019] [Indexed: 12/13/2022]
Abstract
PURPOSE Radical gastrectomy with D2 lymphadenectomy has been widely recognized as standard surgical procedure for advanced gastric cancer, while the role of No. 14v lymphadenectomy in distal gastric cancer remains controversial. METHODS Clinicopathological data of 793 distal gastric cancer patients who underwent at least a radical D2 lymphadenectomy with No. 6 nodes metastasis were retrospectively reviewed. RESULTS Fifty patients received No. 14v lymphadenectomy. Patients with No. 14v nodes metastasis (21/50, 42.0%) had poor prognosis. The No. 14v nodes metastasis was not an independent prognostic factor (P = 0.075). In distal gastric cancer patients with No. 6 nodes metastasis, No. 14v lymphadenectomy deteriorated overall survival, what's more, No. 14v lymphadenectomy was an independent risk prognostic factor (hazard ratio: 1.404; 95% confidence interval 1.043-1.889; P = 0.025). There was no significant difference in overall or locoregional and other types of recurrence rate between the 14vD+ and the 14vD- groups. The proportion of complication rate was greater in 14vD+ group (P = 0.001). CONCLUSION Extended D2 gastrectomy including No. 14v lymphadenectomy seems to be associated with poor overall survival and increased complication rate of distal gastric cancer patients with No. 6 nodes metastasis.
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6
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Zhao J, Mai C, Weng D, Chen C, Zhou Z, Liu Y, Zhou Z, Wang P. Reduced expression of Rap1GAP as a prognostic biomarker for primary gastric cancer patients. Cancer Biomark 2018; 22:375-384. [PMID: 29758923 DOI: 10.3233/cbm-170832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Rap1GAP, a member of the family of GTPase-activating proteins, is reported to be involved in cancer development and progression. OBJECTIVE The study aimed to investigate the expression and prognostic value of Rap1GAP in gastric cancer patients. METHODS Real-time quantitative polymerase chain reaction and western blotting were performed to examine Rap1GAP expression in tumorous and matched adjacent non-tumorous gastric tissues. Immunohistochemical staining was used to analyze Rap1GAP expression in 456 gastric cancer tissues. The correlation between Rap1GAP expression level and clinicopathological features as well as gastric cancer prognosis was analyzed. RESULTS Rap1GAP expression was remarkably decreased in tumor tissues at mRNA (p= 0.012) and protein (p= 0.034) level. Clinicopathological analysis revealed that low Rap1GAP expression was significantly correlated with tumor size (p= 0.033), histological grade (p= 0.034), T classification (p= 0.012), N classification (p= 0.006) and clinical stage (p= 0.005). Kaplan-Meier survival analysis revealed the association between low Rap1GAP expression and poor survival in gastric cancer patients. Furthermore, multivariate Cox regression analysis showed that Rap1GAP expression was an independent prognostic factor (p= 0.02). CONCLUSION Rap1GAP may play a significant role in gastric cancer progression and act as a valuable prognostic marker for gastric cancer.
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Affiliation(s)
- Jingjing Zhao
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Cong Mai
- Department of Abdominal Oncosurgery, The Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.,Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Desheng Weng
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Changlong Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Ziqi Zhou
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yuan Liu
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Biotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Zhiwei Zhou
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.,Department of Gastric and Pancreatic Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Peng Wang
- Department of Emergency Medicine, Sun Yat-Sen Memorial Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
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7
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Oh SJ, Suh BJ, Park JK, Oh SD, Yu HJ. Prognostic Discrepancy of the 6th and 7th UICC N Classification for Lymph Node Staging in Gastric Cancer Patients after Curative Resection. Case Rep Oncol 2017; 10:57-65. [PMID: 28203165 PMCID: PMC5301159 DOI: 10.1159/000455189] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 12/19/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The validity of N classification of the 7th edition of the American Joint Committee on Cancer/Union Internationale contre le Cancer (AJCC/UICC) tumor-node-metastasis (TNM) staging system is still under debate. The purpose of this study was to evaluate the prognostic efficacy of the 7th edition of the AJCC/UICC TNM staging system (focusing on N stage), in comparison with the 6th edition, at a single Eastern institution. METHODS We analyzed 1,435 patients with gastric cancer who underwent curative resection performed from September 1998 to August 2003 at the Memorial Jin-Pok Kim Korea Gastric Cancer Center. We analyzed the survival rate of the patients according to the AJCC/UICC 6th and 7th editions, and compared each stage, focusing on N stage. RESULTS Significant differences in the 5-year survival rates were observed between the 6th and the 7th AJCC/UICC staging system. In the 6th edition staging system, the Kaplan-Meier curves discriminated each N stage significantly. In contrast, there was no difference in terms of survival curves for N stage according to the 7th edition, especially between N1 and N2: the Kaplan-Meier plots of survival curves between N1 (77.0%) and N2 (78.1%) stages overlapped significantly (p < 0.05). CONCLUSION Although the 7th UICC staging system is a more detailed and sophisticated system in the T category, there was no prognostic significance between the pN1 and pN2 stages according to our data. Therefore, we suggest establishing a new UICC staging system taking into consideration the application of the N stage.
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Affiliation(s)
- Sung Jin Oh
- Department of Surgery, Haeundae Paik Hospital, Busan, Republic of Korea; Memorial Jin-Pok Kim Korea Gastric Cancer Center, Inje University College of Medicine, Busan, Republic of Korea
| | - Byoung Jo Suh
- Department of Surgery, Haeundae Paik Hospital, Busan, Republic of Korea; Memorial Jin-Pok Kim Korea Gastric Cancer Center, Inje University College of Medicine, Busan, Republic of Korea
| | - Jong Kwon Park
- Department of Surgery, Haeundae Paik Hospital, Busan, Republic of Korea
| | - Sung Don Oh
- Department of Surgery, Haeundae Paik Hospital, Busan, Republic of Korea
| | - Hang Jong Yu
- Department of Surgery, Korea Cancer Center Hospital, Seoul, Republic of Korea
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Baniak N, Senger JL, Ahmed S, Kanthan SC, Kanthan R. Gastric biomarkers: a global review. World J Surg Oncol 2016; 14:212. [PMID: 27514667 PMCID: PMC4982433 DOI: 10.1186/s12957-016-0969-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 08/02/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Gastric cancer is an aggressive disease with a poor 5-year survival and large global burden of disease. The disease is biologically and genetically heterogeneous with a poorly understood carcinogenesis at the molecular level. Despite the many prognostic, predictive, and therapeutic biomarkers investigated to date, gastric cancer continues to be detected at an advanced stage with resultant poor clinical outcomes. MAIN BODY This is a global review of gastric biomarkers with an emphasis on HER2, E-cadherin, fibroblast growth factor receptor, mammalian target of rapamycin, and hepatocyte growth factor receptor as well as sections on microRNAs, long noncoding RNAs, matrix metalloproteinases, PD-L1, TP53, and microsatellite instability. CONCLUSION A deeper understanding of the pathogenesis and biological features of gastric cancer, including the identification and characterization of diagnostic, prognostic, predictive, and therapeutic biomarkers, hopefully will provide improved clinical outcomes.
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Affiliation(s)
- Nick Baniak
- Department of Pathology and Laboratory Medicine, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
| | - Jenna-Lynn Senger
- Department of Surgery, University of Alberta, 116 St & 85 Ave, Edmonton, T6G 2R3, T6G 2B7 AB Canada
| | - Shahid Ahmed
- Division of Medical Oncology, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
| | - S. C. Kanthan
- Department of General Surgery, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
| | - Rani Kanthan
- Department of General Surgery, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK S7N 0W8 Canada
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9
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Park SK, Park YS, Ahn JY, Do EJ, Kim D, Kim JE, Jung K, Byeon JS, Ye BD, Yang DH, Park SH, Hwang SW, Jung HY, Myung SJ. MiR 21-5p as a predictor of recurrence in young gastric cancer patients. J Gastroenterol Hepatol 2016; 31:1429-35. [PMID: 26824898 DOI: 10.1111/jgh.13300] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM It is generally assumed that gastric cancer (GC) in young patients has different clinicopathologic characteristics than that of elderly patients. Although recurrence is an important factor in determining prognosis, traditional clinicopathological factors are sometimes inadequate for predicting recurrence in individuals. Therefore, we aimed to identify miRNAs with the potential to predict recurrence in young patients. METHODS Young patients (age <40 years) undergoing gastrectomy for potentially curable GC (stage III) at Asan Medical Center participated in this study. A total of 50 GC patients with (n = 28) and without (n = 22) GC recurrence were selected for analysis. miRNA microarrays were analyzed to screen tissue samples (n = 7), and we validated the selected miRNAs by quantitative PCR in validation samples (n = 43). RESULTS Two miRNAs (hsa-miR-21-5p and hsa-miR-451a) identified in the microarray analysis were evaluated in the validation samples. Among the validation samples containing intratumoral stroma ≥ 70 (n = 35), hsa-miR-21-5p was more highly expressed in the recurrence group than in the nonrecurrence group (fold change 1.82, P = 0.03). In the validation samples with intratumoral stroma ≥ 70, the ΔCt of hsa-miR-21-5p, which was >3.35, had a sensitivity and specificity of 86.7% and 65.5%, respectively, for predicting recurrence, with an area under the ROC curve of 0.723. CONCLUSIONS miR-21-5p may be useful as a predictor of recurrence in young GC patients whose tumors contain a high proportion of intratumoral stroma. The combination of this miRNA with conventional clinicopathological factors should allow patient prognoses to be more accurately predicted.
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Affiliation(s)
- Soo-Kyung Park
- Division of Gastroenterology, Department of Internal medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Young Soo Park
- Department of Pathology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Yong Ahn
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun-Ju Do
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | | | | | - Kyoungwon Jung
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong-Sik Byeon
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byong Duk Ye
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dong Hoon Yang
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Hyoung Park
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung Wook Hwang
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hwoon-Yong Jung
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung-Jae Myung
- Department of Gastroenterolgy, Sungkyunkwan University School of Medicine, Seoul, Korea.,Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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10
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Gu D, Du M, Tang C, Chu H, Xu Z, Huo X, Gong W, Tang Y, Zhou J, Tong N, Xu Y, Zhang Z, Wang M, Chen J. Functional polymorphisms in apoptosis pathway genes and survival in patients with gastric cancer. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2014; 55:421-427. [PMID: 24535941 DOI: 10.1002/em.21856] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 01/26/2014] [Accepted: 01/26/2014] [Indexed: 06/03/2023]
Abstract
The FAS, FAS ligand (FASL), and CASP8 are key regulators for apoptosis and their deregulations play an important role in carcinogenesis. However, the effects of promoter polymorphisms of the FAS, and FASL, and CASP8 genes on the survival of gastric cancer are unknown. In this study, we investigated the association of four polymorphisms (FAS -1377G>A, -670A>G, FASL -844C>T, and CASP8 -652 6N ins>del) with the clinical outcome of 940 gastric cancer patients in a Chinese population. The correlation between genotype and survival outcomes was assessed by the Kaplan-Meier method, Cox proportional hazards models and the log-rank test. Our results revealed that individuals with CASP8 -652 6N ins/del+del/del genotypes had a decreased risk of death compared with those with ins/ins genotype (log-rank P=0.005; hazard ratio=0.75, 95% confidence interval=0.62-0.92). The protective effect of the del allele was further confirmed in subgroups of patients with tumor size ≤ 5 cm (0.66, 0.50-0.86) and T2 depth invasion (0.59, 0.37-0.94), but no significant association was observed in the subgroups of lymph node metastasis (0.67, 0.47-0.97), and distance metastasis (0.73, 0.60-0.90). Our findings suggest that, if validated in different independent populations, the CASP8 -652 6N ins>del polymorphism may serve as a promising genetic marker for gastric cancer prognosis.
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Affiliation(s)
- Dongying Gu
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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11
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Li FX, Zhang RP, Liang H, Quan JC, Liu H, Zhang H. Validity and necessity of sub-classification of N3 in the 7th UICC TNM stage of gastric cancer. Asian Pac J Cancer Prev 2014; 14:2091-5. [PMID: 23679324 DOI: 10.7314/apjcp.2013.14.3.2091] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The 7th TNM staging is the first authoritative standard for evaluation of effectiveness of treatment of gastric cancer worldwide. However, revision of pN classification within TNM needs to be discussed. In particular, the N3 sub-stage is becoming more conspicuous. METHODS Clinical data of 302 pN3M0 stage gastric cancer patients who received radical gastrectomy in Tianjin Medical University Cancer Institute and Hospital from January 2001 to May 2006 were retrospectively analyzed. RESULTS Location of tumor, depth of invasion, extranodal metastasis, gastric resection, combined organs resection, lymph node metastasis, rate of lymph node metastasis, negative lymph nodes count were important prognostic factors of pN3M0 stage gastric cancers. TNM stage was also associated with prognosis. Patients at T2N3M0 stage had a better prognosis than other sub-classification. T3N3M0 and T4aN3aM0 patients had equal prognosis which followed the T2N3M0. T4aN3bM0 and T4bN3aM0 had lower survival rate than the formers. T4bN3bM0 had worst prognosis. In multivariate analysis, TNM stage group and rate of lymph node metastasis were independent prognostic factors. CONCLUSIONS The sub-stage of N3 may be useful for more accurate prediction of prognosis; it should therefore be applied in the TNM stage system.
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Affiliation(s)
- Fang-Xuan Li
- Cancer Prevention Center, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
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Improved survival after adding dissection of the superior mesenteric vein lymph node (14v) to standard D2 gastrectomy for advanced distal gastric cancer. Surgery 2013; 155:408-16. [PMID: 24287148 DOI: 10.1016/j.surg.2013.08.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 08/27/2013] [Indexed: 12/19/2022]
Abstract
BACKGROUND Extended lymph node dissection in gastric cancer (D3) was proven to have no survival benefit compared with a D2 dissection, but whether adding the superior mesenteric nodes (No. 14v) to the dissection provides survival benefit for gastric cancer patients remains controversial. METHODS From April 2001 to June 2007, 1,661 patients underwent curative resection for middle or lower third gastric cancer. Patients were grouped according to No. 14v lymphadenectomy (14vD+/14vD-). Clinicopathologic characteristics and treatment-related factors were compared between the groups. Overall survival according to the clinical stage (Union for International Cancer Control tumor-node-metastasis staging 6th edition) was analyzed using the Cox proportional hazard model. RESULTS The incidence of No. 14v lymph node metastasis was 5.0%. There was no difference in morbidity or mortality between the 14vD+ and the 14vD- groups. The proportion of locoregional recurrence was greater in 14vD- group (P = .018). In clinical stages I and II, 14v lymph node dissection did not affect overall survival; in contrast, 14v lymph node dissection was an independent prognostic factor in patients with clinical stage III/IV gastric cancer (hazard ratio, 0.58; 95% confidence interval, 0.38-0.88; P = .01). CONCLUSION Extended D2 gastrectomy including No. 14v lymph node dissection seems to be associated with improved overall survival of patients with clinical stage III/IV gastric cancer in the middle or lower third of the stomach.
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Wu Y, Grabsch H, Ivanova T, Tan IB, Murray J, Ooi CH, Wright AI, West NP, Hutchins GGA, Wu J, Lee M, Lee J, Koo JH, Yeoh KG, van Grieken N, Ylstra B, Rha SY, Ajani JA, Cheong JH, Noh SH, Lim KH, Boussioutas A, Lee JS, Tan P. Comprehensive genomic meta-analysis identifies intra-tumoural stroma as a predictor of survival in patients with gastric cancer. Gut 2013; 62:1100-11. [PMID: 22735568 DOI: 10.1136/gutjnl-2011-301373] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Gastric adenocarcinoma (gastric cancer, GC) is a major cause of global cancer mortality. Identifying molecular programmes contributing to GC patient survival may improve our understanding of GC pathogenesis, highlight new prognostic factors and reveal novel therapeutic targets. The authors aimed to produce a comprehensive inventory of gene expression programmes expressed in primary GCs, and to identify those expression programmes significantly associated with patient survival. DESIGN Using a network-modelling approach, the authors performed a large-scale meta-analysis of GC transcriptome data integrating 940 gastric transcriptomes from multiple independent patient cohorts. The authors analysed a training set of 428 GCs and 163 non-malignant gastric samples, and a validation set of 288 GCs and 61 non-malignant gastric samples. RESULTS The authors identified 178 gene expression programmes ('modules') expressed in primary GCs, which were associated with distinct biological processes, chromosomal location patterns, cis-regulatory motifs and clinicopathological parameters. Expression of a transforming growth factor β (TGF-β) signalling associated 'super-module' of stroma-related genes consistently predicted patient survival in multiple GC validation cohorts. The proportion of intra-tumoural stroma, quantified by morphometry in tissue sections from gastrectomy specimens, was also significantly associated with stromal super-module expression and GC patient survival. CONCLUSION Stromal gene expression predicts GC patient survival in multiple independent cohorts, and may be closely related to the intra-tumoural stroma proportion, a specific morphological GC phenotype. These findings suggest that therapeutic approaches targeting the GC stroma may merit evaluation.
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Affiliation(s)
- Yonghui Wu
- Cellular and Molecular Research, National Cancer Centre, Singapore
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Yoon HM, Ryu KW, Nam BH, Cho SJ, Park SR, Lee JY, Lee JH, Kook MC, Choi IJ, Kim YW. Is the new seventh AJCC/UICC staging system appropriate for patients with gastric cancer? J Am Coll Surg 2011; 214:88-96. [PMID: 22036661 DOI: 10.1016/j.jamcollsurg.2011.09.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 09/21/2011] [Accepted: 09/21/2011] [Indexed: 12/16/2022]
Abstract
BACKGROUND The purpose of this study was to compare the clinical usefulness of the seventh Union Internationale Contre le Cancer/American Joint Committee on Cancer (AJCC/UICC) staging system vs the sixth AJCC/UICC staging system in patients with gastric cancer. STUDY DESIGN Included were 1,799 patients who underwent surgery for gastric cancer between January 2001 and June 2005 at the National Cancer Center (South Korea). For the sixth and seventh AJCC/UICC staging systems, survival outcomes stratified by stage, by T classification, and by N classification were summarized using Kaplan-Meier curves and compared statistically using a log rank test; survival differences were quantified using hazard ratios estimated from a Cox regression model. The 2 systems were compared in terms of prognostic performances using the linear trend chi-square test, likelihood ratio chi-square test, and Akaike information criterion (AIC) in the Cox regression analysis. RESULTS Significant survival differences between each stage were not found using the seventh staging system, especially for stages IB, IIA, and IIB (p = 0.14 and p = 0.11). The sixth staging system had higher linear trend chi-square score and likelihood ratio chi-square score, which means better discriminatory ability, monotonicity, and homogeneity, and had smaller AIC, which indicates better optimistic prognostic stratification, especially in the N classification. The modified staging system combining the T classification of the seventh AJCC/UICC system and the N classification of the sixth system showed better prognostic performance compared with each separate version (sixth or seventh) of the staging system. CONCLUSIONS The seventh AJCC/UICC staging system is not more clinically useful than the sixth system in surgically treated patients with gastric cancer because of an inappropriate N classification. A new TNM system is required with a different N classification.
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Affiliation(s)
- Hong Man Yoon
- Gastric Cancer Branch, Research Institute and Hospital, Gyeonggi-do, Korea
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Ahmed A, Ukwenya AY, Makama JG, Mohammad I. Management and outcome of gastric carcinoma in Zaria, Nigeria. Afr Health Sci 2011; 11:353-361. [PMID: 22275924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
INTRODUCTION Gastric cancer is the second leading cause of cancer death in the world. The objective of this study was to present the clinical evaluation, treatment and outcome of 179 patients with gastric carcinoma in Zaria, Nigeria. METHODS Patients managed for histologically diagnosed gastric carcinoma were reviewed. The extent of surgical intervention was based on pre-operative and intra-operative staging balanced against the age and overall fitness of the patient. Mortality, morbidity and patient's survival were monitored. RESULTS There were 179 patients, with a male to female ratio of 1.4:1. Their mean age was 51 ± 6.3. Ten (5.6%) patients presented with early gastric cancer. Overall, 155(86.6%) patients had surgical intervention including gastric resection in 87 (56.1%). Of the gastrectomies , 28.7% were curative (R0). Postoperative complications were seen in 43(27.7%) patients. Postoperative mortality in 25(16.1%) patients was significantly associated with peritoneal metastasis (p<0.001), preoperative comorbidity (p<0.01) and age more than 60 years (p<0.03). The overall median survival was 13.6 months while 70.1% and 21.8% of patients that underwent gastrectomy survived for 1 and 5 years respectively. CONCLUSION Treatment of gastric cancer should be based on a reasonable choice of operation that must consider not only the survival benefits but also the surgical risks and postoperative quality of life.
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Affiliation(s)
- A Ahmed
- Division of General Surgery, Department of Surgery, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria.
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Wang W, Sun XW, Li CF, Lv L, Li YF, Chen YB, Xu DZ, Kesari R, Huang CY, Li W, Zhan YQ, Zhou ZW. Comparison of the 6th and 7th editions of the UICC TNM staging system for gastric cancer: results of a Chinese single-institution study of 1,503 patients. Ann Surg Oncol 2010; 18:1060-7. [PMID: 21107742 PMCID: PMC3052465 DOI: 10.1245/s10434-010-1424-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Indexed: 12/12/2022]
Abstract
AIM To evaluate the prognostic efficacy of the 7th edition tumor-node-metastasis (TNM) classification compared with the 6th edition in gastric cancer patients. METHODS A total of 1,503 gastric cancer patients undergoing surgical resection were staged using the 6th and 7th edition staging systems. Homogeneity, discriminatory ability, and monotonicity of gradients of the two systems were compared using linear trend χ(2), likelihood ratio χ(2) statistics, and Akaike information criterion (AIC) calculations. RESULTS Significant differences in 5-year survival rates were observed for the T, N, and M subgroups using the 7th edition system, except for stage N2 and N3 patients in the 6th edition system. There were no significant differences in survival between IB and IIA in the 7th edition system. Patients with stage IV disease due to T4/N3 in the 6th edition system who were downstaged to stage III in the 7th edition system had significantly better survival than those who remained at stage IV. The 7th edition system had higher linear trend and likelihood ratio χ(2) scores, and smaller AIC values compared with those for the 6th edition, which represented the optimum prognostic stratification. CONCLUSIONS Our study suggests that the 7th edition system performs better than the 6th edition in several aspects.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Oncology in South China, Guangzhou, China
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