scholarly journals A clinical model to predict distant metastasis in patients with superficial gastric cancer with negative lymph node metastasis and a survival analysis for patients with metastasis

2020 ◽  
Author(s):  
Jingyu Chen ◽  
Lunpo Wu ◽  
Zizhen Zhang ◽  
Sheng Zheng ◽  
Yifeng Lin ◽  
...  

2020 ◽  
Author(s):  
Peng Jin ◽  
Yang Li ◽  
Shuai Ma ◽  
Wenzhe Kang ◽  
Hao Liu ◽  
...  

Abstract Background Since the definition of early gastric cancer (EGC) was first proposed in 1971, the treatment of gastric cancer with or without lymph node metastasis (LNM) has changed a lot. The present study aims to identify risk factors for LNM and prognosis, and to further evaluate the indications for adjuvant chemotherapy (AC) in T1N + M0 gastric cancer. Methods A total of 1291 patients with T1N + M0 gastric cancer were retrieved from the Surveillance, Epidemiology, and End Results (SEER) database. Univariate and multivariate analyses were performed to identify risk factors for LNM. The effect of LNM on overall survival (OS) and cancer-specific survival (CSS) was compared with patients grouped into T1N0-1 and T1N2-3, as the indications for AC. Results The rate of LNM was 19.52%. Multivariate analyses showed age, tumor size, invasion depth, and type of differentiation and retrieved LNs were associated with LNM (p < 0.05). Cox multivariate analyses indicated age, sex, tumor size, N stage were independent predictors of OS and CSS (p < 0.05), while race was indicator for OS (HR 0.866; 95%CI 0.750–0.999, p = 0.049), but not for CSS (HR 0.878; 95% CI 0.723–1.065, p = 0.187). In addition, survival analysis showed the proportion of patients in N+/N0 was better distributed than N0-1/N2-3b. There were statistically significant differences in OS and CSS between patients with and without chemotherapy in pT1N1M0 patients (p༜0.05). Conclusions Both tumor size and invasion depth are associated with LNM and prognosis. LNM is an important predictor of prognosis. pT1N + M0 may be appropriate candidates for AC. Currently, the treatment and prognosis of T1N0M0/T1N + M0 are completely different. An updated definition of EGC, taking into tumor size, invasion depth and LNM, may be more appropriate in an era of precision medicine.



2015 ◽  
Vol 68 (10) ◽  
pp. 795-801 ◽  
Author(s):  
Yuya Sato ◽  
Mikito Inokuchi ◽  
Yoko Takagi ◽  
Sho Otsuki ◽  
Yoshitaka Fujimori ◽  
...  

AimsInsulin-like growth factor binding protein 7 (IGFBP7) is reported to have tumour suppressor function through an IGF-dependent pathway in various malignant tumours. However, the expression of IGFBP7 in adenocarcinoma and its relationship with tumour progression and survival differs among studies. Our aims were to investigate the relationship between the expression of IGFBP7 and clinicopathological variables and outcomes of patients with gastric cancer.MethodsTumour samples were obtained from 219 patients with gastric cancer who underwent gastrectomy. The expression of IGFBP7 protein was examined by immunohistochemical staining. IGFBP7 mRNA levels were analysed using real-time quantitative reverse-transcriptase PCR in 24 of the gastric cancer tumours and in adjacent non-tumour tissues. Correlation of IGFBP7 expression with clinicopathological features was analysed.ResultsThe protein expression of IGFBP7 was positively correlated with depth of invasion, lymph node metastasis, distant metastasis or recurrence and pathological stage. High expression of IGFBP7 protein was associated with a significantly worse disease-specific survival (p<0.001) and was an independent prognostic factor in multivariable analysis (HR, 4.8; 95% CI 2.1 to 10.6; p<0.001). The IGFBP7 mRNA level was significantly higher in advanced gastric cancer than in early gastric cancer, in tumours with lymph node metastasis than in tumours without lymph node metastasis, and in tumours with distant metastasis or recurrence than in tumours without distant metastasis or recurrence.ConclusionsOverexpression of IGFBP7 was associated with tumour progression and poor survival in gastric cancer. IGFBP7 may play a role in tumour progression in gastric cancer.



2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e15512-e15512
Author(s):  
Shuixiu Yu ◽  
Jing Ning ◽  
Wei Ouyang ◽  
Lingzhi Ding ◽  
Kaisu Lin ◽  
...  

e15512 Background: Programmed death ligand 1 (PD-L1) expression has become a promising biomarker in predicting the efficacy of immune checkpoint inhibitors in various advanced cancers, including gastric cancer (GC). However, the prognostic value and clinicopathological significance of PD-L1 in GC is still not clearly identified. Hence, we carried out a meta-analysis to investigate the potential role of PD-L1 in GC, expecting to provide new clues for the judgement of prognosis in resected gastric cancer. Methods: A literature search strategy was performed from the PubMed, Web of Science, EMBASE, and the Cochrane Library database as of December 1, 2018. Relevant data was rigorously extracted from the included literatures. Hazard ratios (HRs) and Odds ratios (ORs) along with 95% confidence intervals (95% CIs) were used to evaluate the prognostic value or clinicopathological significance of PD-L1 expression in GC. Results: A total of 21 studies containing 6021 patients fitted into our meta-analysis. The pooled HRs indicated that PD-L1 high-expression accompanied with a worse overall survival (OS) (HR=1.28, 95% CI: 1.01-1.62, P=0.04) in GC, while no correlation with disease-free survival (DFS) (HR=0.88, 95%CI: 0.53-1.45, P=0.61). Subgroup analysis showed that PD-L1 high-expression was negatively associated with distant metastasis groups (OR=0.66, 95%CI:0.48-0.89, P=0.01), but was positively related to elderly(OR=1.19, 95%CI: 1.01-1.40, P=0.04), lymph-node metastasis(OR=1.63, 95%CI: 1.08-2.46, P=0.02), deeper tumor infiltration(OR=1.73, 95%CI: 1.08-2.79, P=0.02), Epstein-Barr virus infection positive (EBV+) (OR=8.01, 95%CI: 3.10-20.72, P<0.0001), and MET positive (MET+) groups (OR=1.78, 95%CI: 1.05-3.00, P=0.03). Conclusions: Our meta-analysis found that the high-expression of PD-L1 accompanied with a poor OS. Moreover, PD-L1 high-expression was related to age, lymph-node metastasis, depth of infiltration, distant metastasis, EBV infection, and MET status.



2019 ◽  
Vol 15 (31) ◽  
pp. 3609-3617 ◽  
Author(s):  
Jianfeng Mu ◽  
Zhifang Jia ◽  
Weikai Yao ◽  
Jiaxing Song ◽  
Xueyuan Cao ◽  
...  

Aim: To develop and validate a model to predict possibility of lymph node metastasis (LNM) in early gastric cancer. Materials & methods: An LNM prediction model was developed by logistic regression based on the demographics or characteristics of the tumor (N = 746) and then internally and externally validated (N = 126). Results: Four variables, lymphovascular invasion, differentiated types, diameter of tumor and T stage were screened into the model. The area under the receiver-operating characteristic curve of the model was 0.861 (95% CI: 0.851–0.864) in internal validation and 0.911 (95% CI: 0.848–0.974) in the validation set. Conclusion: The model shows excellent discrimination and calibration performance, and is potential to be a useful clinical model to predict the risk of LNM in early gastric cancer.



2021 ◽  
Author(s):  
Jian Luo ◽  
Yuanzhi Zhu ◽  
Ying Long ◽  
Fei Huang ◽  
Xiaozou Luo ◽  
...  

Abstract Background Many cancer researchers have investigated the prognostic significance of LASP1 for survival of patients with various types of cancer. Nevertheless, the role LASP1 palyed in cancer prognosis remains unknown. In consequence, we carried out this study in order to comprehensively analyze the prognostic value of LASP1 in cancer patients. Methods A systematical research was conducted in electronic databases, such as PubMed, Embase and Web of Science. Eighteen studies meeting the inclusion criteria were enrolled. Overall survival (OS), recurrence-free survival (RFS) and various clinicopathological parameters were used as the endpoints in this study. Results A total of 2023 cancer patients from eighteen studies were finally enrolled into our meta-analysis. The results revealed that the cancer patients with high expression of LASP1 exhibited shorter OS (HR = 2.04, 95%CI = 1.77–2.34, P < 0.01) and RFS (HR = 2.11, 95%CI = 1.51–2.95, P < 0.01) than those with low expression of LASP1, and patients whose tumors expressed high LASP1 had shorter OS in lung cancer (HR = 2.20, 95%CI = 1.45–3.36, P < 0.01) and gastric cancer (HR = 1.64, 95%CI = 1.14–2.36, P < 0.01) respectively. Furthermore, the cancer patients whose tumors expressed high LASP1 were apparently associated with advanced TNM stage (OR = 2.92, 2.27–3.76, P < 0.01), earlier lymph node metastasis (OR = 2.69, 1.62–4.45, P < 0.01), advanced T classification (OR = 2.17, 1.48–3.18, P < 0.01) and earlier distant metastasis (OR = 2.56, 1.03–6.35, P = 0.04) when compared to those whose tumors expressed low LASP1. Conclusions Our study showed that the high LASP1 expression might be an undesirable predictor for patients with various types of cancers in the aspect of OS, RFS, TNM stage, lymph node metastasis, T classification and distant metastasis, and the high LASP1 expression might be an undesirable predictor for lung cancer patients and gastric cancer patients. Therefore, the expression of LASP1 might be utilized as a novel indicator in judging the prognosis of cancer patients, especially in lung cancer and gastric cancer.



Oncogene ◽  
2021 ◽  
Vol 40 (12) ◽  
pp. 2296-2308
Author(s):  
Mei Wang ◽  
Xinxin Zhao ◽  
Rong Qiu ◽  
Zheng Gong ◽  
Feng Huang ◽  
...  

AbstractLymph node metastasis (LNM), a common metastatic gastric-cancer (GC) route, is closely related to poor prognosis in GC patients. Bone marrow-derived mesenchymal stem cells (BM-MSCs) preferentially engraft at metastatic lesions. Whether BM-MSCs are specifically reprogrammed by LNM-derived GC cells (LNM-GCs) and incorporated into metastatic LN microenvironment to prompt GC malignant progression remains unknown. Herein, we found that LNM-GCs specifically educated BM-MSCs via secretory exosomes. Exosomal Wnt5a was identified as key protein mediating LNM-GCs education of BM-MSCs, which was verified by analysis of serum exosomes collected from GC patients with LNM. Wnt5a-enriched exosomes induced YAP dephosphorylation in BM-MSCs, whereas Wnt5a-deficient exosomes exerted the opposite effect. Inhibition of YAP signaling by verteporfin blocked LNM-GC exosome- and serum exosome-mediated reprogramming in BM-MSCs. Analysis of MSC-like cells obtained from metastatic LN tissues of GC patients (GLN-MSCs) confirmed that BM-MSCs incorporated into metastatic LN microenvironment, and that YAP activation participated in maintaining their tumor-promoting phenotype and function. Collectively, our results show that LNM-GCs specifically educated BM-MSCs via exosomal Wnt5a-elicited activation of YAP signaling. This study provides new insights into the mechanisms of LNM in GC and BM-MSC reprogramming, and will provide potential therapeutic targets and detection indicators for GC patients with LNM.



Surgery Today ◽  
2012 ◽  
Vol 43 (2) ◽  
pp. 130-135 ◽  
Author(s):  
Maki Kitagawa ◽  
Daisuke Ichikawa ◽  
Shuhei Komatsu ◽  
Kazuma Okamoto ◽  
Atsushi Shiozaki ◽  
...  


Surgery Today ◽  
2015 ◽  
Vol 46 (9) ◽  
pp. 1031-1038 ◽  
Author(s):  
Satoru Ishii ◽  
Keishi Yamashita ◽  
Hiroshi Kato ◽  
Nobuyuki Nishizawa ◽  
Hideki Ushiku ◽  
...  


2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Yuejuan Xu ◽  
Jue Sun ◽  
Jianhua Xu ◽  
Qi Li ◽  
Yuewu Guo ◽  
...  

Background. Gastric cancer (GC) is an important malignant disease around the world. Abnormalities of microRNAs (miRNAs) have been implicated in carcinogenesis of various cancers. In the present study, we examined miR-21 expression in human gastric cancer with lymph node metastasis and attempted to uncover its relationship with clinicopathologic data, especially with lymph node metastasis.Materials and Methods. The expression levels of miR-21 in the tumor specimens of GC patients were quantified by RT-PCR. The correlation between miR-21 level and multiple clinicopathological factors was then examined by Mann-Whitney test, Kaplan-Meier survival analysis, and operating characteristic (ROC) analysis.Results. The expression level of miR-21 was higher in GC patients with lymph node metastasis than in those without lymph node metastasis (P<0.05). Expression level of miR-21 was significantly correlated with histologic type, T stage, lymph node metastasis and pTNM stage. The overall survival rates in GC patients with low upregulated miR-21 expression were significantly higher than those with high upregulated miR-21 (P<0.05).Conclusion. A close association is implicated between the elevated miR-21and lymph node metastasis, which could potentially be exploited as a practical biomarker for lymph node metastasis in patients with GC.



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