scholarly journals EZH2-mediated epigenetic suppression of lncRNA PCAT18 predicts a poor prognosis and regulates the expression of p16 by interacting with miR-570a-3p in gastric cancer

2021 ◽  
Vol 12 (23) ◽  
pp. 7069-7078
Author(s):  
Liangjun Zhu ◽  
Chongguo Zhang ◽  
Jiao Xue ◽  
Xuezhi He ◽  
Dandan Yin ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Poor Prognosis ◽  
Epigenetic Suppression

Identification of novel autoantibodies in ascites of relapsed paclitaxel-resistant gastric cancer with peritoneal metastasis using immunome protein microarrays and proteomics

2021 ◽  
pp. 1-10
Author(s):  
Zhongyin Yang ◽  
Chao Yan ◽  
Wentao Liu ◽  
Wei Xu ◽  
Chen Li ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Effective Treatment ◽  
Peritoneal Metastasis ◽  
Quantitative Proteomics ◽  
Poor Prognosis ◽  
Protein Microarrays ◽  
Tandem Mass ◽  
Tandem Mass Tag ◽  
Resistant Group ◽  
Potential Biomarkers

BACKGROUND: Gastric cancer (GC) patients with peritoneal metastasis usually have extremely poor prognosis. Intraperitoneal infusion of paclitaxel (PTX) provides an effective treatment, but relapse and PTX-resistance are unavoidable disadvantages, and it is difficult to monitor the occurrence of PTX-resistance. OBJECTIVE: The aim of this study was to explore novel autoantibodies in the ascites of individuals with relapsed PTX-resistant GC with peritoneal metastasis. METHODS: Ascites samples were collected before PTX infusion and after the relapse in 3 GC patients. To determine the expression of significantly changed proteins, we performed autoantibody profiling with immunome protein microarrays and tandem mass tag (TMT) quantitative proteomics, and then, the overlapping proteins were selected. RESULTS: Thirty-eight autoantibodies that were differentially expressed between the ascites in the untreated group and relapsed PTX-resistant group were identified. For confirmation of the results, TMT quantitative proteomics was performed, and 842 dysregulated proteins were identified. Four proteins, TPM3, EFHD2, KRT19 and vimentin, overlapped between these two assays. CONCLUSIONS: Our results first revealed that TPM3, EFHD2, KRT19 and vimentin were novel autoantibodies in the ascites of relapsed PTX-resistant GC patients. These autoantibodies may be used as potential biomarkers to monitor the occurrence of PTX-resistance.

scholarly journals LAMB1 Is Related to the T Stage and Indicates Poor Prognosis in Gastric Cancer

2021 ◽  
Vol 20 ◽  
pp. 153303382110049
Author(s):  
Tao Ran ◽  
ZhiJi Chen ◽  
LiWen Zhao ◽  
Wei Ran ◽  
JinYu Fan ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Poor Prognosis ◽  
Hazard Models ◽  
Proportional Hazard ◽  
Kegg Analysis ◽  
Proportional Hazard Models ◽  
Cox Proportional Hazard ◽  
Kaplan Meier ◽  
Cox Proportional Hazard Models ◽  
Gastric Cancer Patients

Background and Objective: Gastric cancer (GC) is a common tumor malignancy with high incidence and poor prognosis. Laminin is an indispensable component of basement membrane and extracellular matrix, which is responsible for bridging the internal and external environment of cells and transmitting signals. This study mainly explored the association of the LAMB1 expression with clinicopathological characteristics and prognosis in gastric cancer. Methods: The expression data and clinical information of gastric cancer patients were downloaded from The Cancer Genome Atlas (TCGA) and Asian Cancer Research Group (ACRG). And we analyzed the relationship between LAMB1 expression and clinical characteristics through R. CIBERSORTx was used to calculate the absolute score of immune cells in gastric tumor tissues. Then COX proportional hazard models and Kaplan-Meier curves were performed to evaluate the role of LAMB1 and its influence on prognosis in gastric cancer patients. Finally, GO and KEGG analysis were applied for LAMB1-related genes in gastric cancer, and PPI network was constructed in Cytoscape software. Results: In the TCGA cohort, patients with gastric cancer frequently generated LAMB1 gene copy number variation, but had little effect on mRNA expression. Both in the TCGA and ACRG cohorts, the mRNA expression of LAMB1 in gastric cancer tissues was higher than it in normal tissues. All patients were divided into high expression group and low expression group according to the median expression level of LAMB1. The elevated expression group obviously had more advanced cases and higher infiltration levels of M2 macrophages. COX proportional hazard models and Kaplan-Meier curves revealed that patients with enhanced expression of LAMB1 have a worse prognosis. GO/KEGG analysis showed that LAMB1-related genes were enriched in PI3K-Akt signaling pathway, focal adhesion, ECM-receptor interaction, etc. Conclusions: The high expression of LAMB1 in gastric cancer is related to the poor prognosis of patients, and it may be related to microenvironmental changes in tumors.

scholarly journals Gastric cancer with repeated metastasis in the colonic lumen: a case report and multi-surgical experience

2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110184
Author(s):  
Yi Wang ◽  
Peiqing Ma ◽  
Kan Liu ◽  
Dongkui Xu ◽  
Qian Liu
Keyword(s):  
Gastric Cancer ◽  
Gastric Carcinoma ◽  
Poor Prognosis ◽  
Partial Gastrectomy ◽  
Radical Resection ◽  
Surgical Experience ◽  
Colonic Lumen ◽  
Poorly Differentiated ◽  
Gastric Stump Carcinoma ◽  
Peritoneal Spread

Poorly differentiated gastric adenocarcinoma is commonly associated with lymph node metastasis, peritoneal spread, and liver metastasis but rarely with intraintestinal metastasis. Most patients with metastatic gastric carcinoma are unable to undergo surgical treatment and have a poor prognosis. A 42-year-old man with hunger-related abdominal pain was diagnosed as having gastric cancer. After the first surgery (distal partial gastrectomy) and the second surgery (gastric stump carcinoma (GSC) resection), the patient suffered repeated multiple intracolonic metastases and underwent three additional resection operations. The patient survived for 154 months after the first operation. In patients with gastric carcinoma that metastasizes to the colonic lumen, radical resection, if possible, can extend survival. Once patients develop extensive extraintestinal metastasis, radical resection cannot be performed, and patients often exhibit a poor prognosis.

Decreased expression of TRIM3 gene predicts a poor prognosis in gastric cancer

2021 ◽  
Author(s):  
Javad Farhadi ◽  
Ladan Goshayeshi ◽  
Alireza Motavalizadehkakhky ◽  
Jamshid Mehrzad ◽  
Hassan Mehrad-Majd
Keyword(s):  
Gastric Cancer ◽  
Poor Prognosis

scholarly journals Clinical and prognostic significances of cancer stem cell markers in gastric cancer patients: a systematic review and meta-analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mahdieh Razmi ◽  
Roya Ghods ◽  
Somayeh Vafaei ◽  
Maryam Sahlolbei ◽  
Leili Saeednejad Zanjani ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Stem Cell ◽  
Cancer Stem Cell ◽  
Clinical Outcomes ◽  
Cancer Progression ◽  
Poor Prognosis ◽  
Meta Analysis ◽  
Disease Free Survival ◽  
Stem Cell Markers ◽  
Free Survival

Abstract Background Gastric cancer (GC) is considered one of the most lethal malignancies worldwide, which is accompanied by a poor prognosis. Although reports regarding the importance of cancer stem cell (CSC) markers in gastric cancer progression have rapidly developed over the last few decades, their clinicopathological and prognostic values in gastric cancer still remain inconclusive. Therefore, the current meta-analysis aimed to quantitatively re-evaluate the association of CSC markers expression, overall and individually, with GC patients’ clinical and survival outcomes. Methods Literature databases including PubMed, Scopus, ISI Web of Science, and Embase were searched to identify the eligible articles. Hazard ratios (HRs) or odds ratios (ORs) with 95% confidence intervals (CIs) were recorded or calculated to determine the relationships between CSC markers expression positivity and overall survival (OS), disease-free survival (DFS)/relapse-free survival (RFS), disease-specific survival (DSS)/ cancer-specific survival (CSS), and clinicopathological features. Results We initially retrieved 4,425 articles, of which a total of 66 articles with 89 studies were considered as eligible for this meta-analysis, comprising of 11,274 GC patients. Overall data analyses indicated that the overexpression of CSC markers is associated with TNM stage (OR = 2.19, 95% CI 1.84–2.61, P = 0.013), lymph node metastasis (OR = 1.76, 95% CI 1.54–2.02, P < 0.001), worse OS (HR = 1.65, 95% CI 1.54–1.77, P < 0.001), poor CSS/DSS (HR = 1.69, 95% CI 1.33–2.15, P < 0.001), and unfavorable DFS/RFS (HR = 2.35, 95% CI 1.90–2.89, P < 0.001) in GC patients. However, CSC markers expression was found to be slightly linked to tumor differentiation (OR = 1.25, 95% CI 1.01–1.55, P = 0.035). Sub-analysis demonstrated a significant positive relationship between most of the individual markers, specially Gli-1, Oct-4, CD44, CD44V6, and CD133, and clinical outcomes as well as the reduced survival, whereas overexpression of Lgr-5, Nanog, and sonic hedgehog (Shh) was not found to be related to the majority of clinical outcomes in GC patients. Conclusion The expression of CSC markers is mostly associated with worse outcomes in patients with GC, both overall and individual. The detection of a combined panel of CSC markers might be appropriate as a prognostic stratification marker to predict tumor aggressiveness and poor prognosis in patients with GC, which probably results in identifying novel potential targets for therapeutic approaches.

scholarly journals Expression of GOLPH2 is associated with the progression of and poor prognosis in gastric cancer

2014 ◽  
Vol 32 (5) ◽  
pp. 2077-2085 ◽  
Author(s):  
GUANGLIN LIU ◽  
YAN ZHANG ◽  
FEN HE ◽  
JIANFENG LI ◽  
XUAN WEI ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Poor Prognosis

The Effect of the Change in Lymph Flow Following Gastrectomy for Initial Disease on the Prognosis of Remnant Gastric Cancer

2021 ◽  
Author(s):  
Yoshihiko Kakiuchi ◽  
Satoru Kikuchi ◽  
Shinji Kuroda ◽  
Masahiko Nishizaki ◽  
Shunsuke Kagawa ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Lymph Node ◽  
Poor Prognosis ◽  
Malignant Disease ◽  
Univariate Analysis ◽  
Lymph Flow ◽  
University Hospital ◽  
Gastric Disease ◽  
Remnant Gastric Cancer ◽  
Initial Surgery

Abstract Background: Remnant gastric cancer (RGC) has been increasing for various reasons such as longer life span, medical progress, and others. It generally has a poor prognosis, and its mechanism of occurrence is unknown. The purpose of this study was to evaluate the clinicopathological features of and clarify the prognostic factors of RGC.Methods: Between January 2002 and January 2017, 39 patients with RGC following distal gastrectomy underwent curative surgical resection at the Okayama University Hospital; their medical records and immunohistochemically stained extracted specimens were used for retrospective analysis. Results: On univariate analysis, initial gastric disease, pathological lymph node metastasis, and pathological stage were the significant factors associated with a poor overall survival (OS) (p=0.0139, 0.0061, and 0.0158, respectively). Multivariate analysis of these 3 factors showed that only initial gastric disease caused by malignant disease was an independent factor associated with a poor prognosis (p=0.0141, odds ratio [OR]:4.151, 95% confidence interval [CI]:1.333-12.93). In addition, the presence of a left gastric artery (LGA), and tumor-infiltrating CD8+ T cell expression were higher in the benign disease group than in the malignant group (p<0.0001 and p=0.0485, respectively).Conclusion: The lymph flow change caused by lymph node dissection for malignant disease in initial surgery might have an effect on the suppression of tumor immunity and the poor prognosis of RGC.

Co-expression of VEGF-B and FLT-1 correlates with malignancy and prognosis of gastric cancer

2021 ◽  
Author(s):  
Yanpeng Ma ◽  
Wenyao Wang ◽  
Longlong Liu ◽  
Yang liu ◽  
Wei Bi
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Targeted Therapy ◽  
Correlation Analysis ◽  
Detailed Analysis ◽  
Poor Prognosis ◽  
Rank Correlation ◽  
Spearman’S Rank Correlation

Background: This study aims to investigate the correlation of VEGF-B and FLT-1 co-expression with the prognosis of gastric cancer (GC). Materials & methods: Primary GC samples and adjacent tissues were obtained from 96 patients. Results: Both VEGF-B and FLT-1 were testified to be upregulated in the human GC compared with adjacent tissues. Spearman’s rank correlation analysis indicated that VEGF-B and FLT-1 expression were correlated (r = 0.321, p = 0.0015). High VEGF-B and FLT-1 co-expression patients showed poor prognosis when compared with low VEGF-B and FLT-1 co-expression patients (p = 0.0169). Conclusion: The high co-expression of VEGF-B and FLT-1 in GC shows a poor prognosis of overall survival, and targeted therapy against the interaction between VEGF-B and FLT-1 is worth further detailed analysis.

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