scholarly journals OCT1 is a determinant of synbindin-related ERK signalling with independent prognostic significance in gastric cancer

Gut ◽  
2014 ◽  
Vol 64 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Jin Qian ◽  
Xuan Kong ◽  
Niantao Deng ◽  
Patrick Tan ◽  
Haoyan Chen ◽  
...  
2021 ◽  
Author(s):  
Tianshang Bao ◽  
Zeyu Wang ◽  
Jia Xu

Abstract Background: Long non coding RNAs (lncRNAs) have many functions, including immune response. The signal irlncRNAs with no requirement of specific expression level seems to be valuable in predicting the prognosis of patients with gastric cancer (GC). Results: Our results suggested that immune related lncRNA signaling is of great value in predicting prognosis, and it may be possible to measure the response to immunotherapy. This feature may guide the choice of immunotherapy for GC. Conclusion: Immune-related lncRNA signals show independent prognostic significance in GC. These results of this research could predict the prognosis of GC patients without detecting specific expression level of lncRNA, providing a possible method for predicting the survival of GC patients, and providing a potential lncRNA target for immunotherapy.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 69-69
Author(s):  
Ti Wen ◽  
Xiujuan Qu ◽  
Yi Li ◽  
Zhi Li ◽  
Xiaofang Che ◽  
...  

69 Background: PD-L1/PD-1 pathway has become an important target in tumor immunotherapy. However, the prognostic value of PD-L1/PD-1 for gastric cancer (GC) remains controversial due to the complexity of immune response. Therefore, comprehensive evaluation of PD-L1/PD-1 expression and CD8+T cells is necessary and superior to one factor in predicting survival. Methods: 166 patients with stage II-III GC were enrolled. Expression of PD-L1, PD-1, and CD8 protein in tumor tissues was examined by IHC staining, and their association with patient’s survival was analyzed by Kaplan-Meier method. Immunoscore classification was constructed using a scoring system, which was based on hazard ratios in a Cox proportional hazard analysis. Results: Expression of PD-L1 was found in 22.29% of immune cells (IC) and 38.55% of tumor cells (TC), while expression of PD-1 was found in 31.33% of IC. CD8High was detected in 41.57% patients. PD-L1+ and PD-1+ IC were both correlated with worse overall survival (OS) ( P=0.0009 and P=0.0004, respectively). In contrast, TC PD-L1+ was associated with better clinical outcomes, including Borrmann classification 0-1, lower AJCC stage, CD8High infiltration and better OS ( P<0.05). Furthermore, IC PD-L1, IC PD-1, CD8, and TC PD-L1 had independent prognostic significance after TNM stage adjustment, and we built an immunoscore system based on these immune factors. Patients with same stage could be further categorized into low-/median-/high-risk subgroups according to their immunoscores. Conclusions: Immunoscore based on comprehensive evaluation of PD-L1/PD-1 and CD8+ T cells can separate GC patients with same stage into different risk subgroups, and might provide suggestion for immunotherapy options in GC.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mengya He ◽  
Limin Yue ◽  
Haiyan Wang ◽  
Feiyan Yu ◽  
Mingyang Yu ◽  
...  

AbstractChromobox (CBX) proteins were suggested to exert epigenetic regulatory and transcriptionally repressing effects on target genes and might play key roles in the carcinogenesis of a variety of carcinomas. Nevertheless, the functions and prognostic significance of CBXs in gastric cancer (GC) remain unclear. The current study investigated the roles of CBXs in the prognosis of GC using the Oncomine, The Gene Expression Profiling Interactive Analysis (GEPIA), UALCAN, The Cancer Genome Atlas (TCGA), and cBioPortal databases. CBX1/2/3/4/5 were significantly upregulated in GC tissues compared with normal tissues, and CBX7 was downregulated. Multivariate analysis showed that high mRNA expression levels of CBX3/8 were independent prognostic factors for prolonged OS in GC patients. In addition, the genetic mutation rate of CBXs was 37% in GC patients, and genetic alterations in CBXs showed no association with OS or disease-free survival (DFS) in GC patients. These results indicated that CBX3/8 can be prognostic biomarkers for the survival of GC patients.


2021 ◽  
Vol 53 (5) ◽  
pp. 547-557
Author(s):  
Ya’nan Yang ◽  
Chenchen Wang ◽  
Congqi Dai ◽  
Xinyang Liu ◽  
Wenhua Li ◽  
...  

Abstract The prognostic significance of c-MET in gastric cancer (GC) remains uncertain. In the present study, we examined the amplification, expression, and the prognostic value of c-MET, human epidermal growth factor receptor 2 (HER2), and programmed cell death 1 ligand 1 (PDL1), together with the correlations among them in a large cohort of Chinese samples. A total of 444 patients were included. The immunohistochemistry (IHC) and the dual-color silver in situ hybridization (SISH) were performed to examine their expression and amplification. Univariate and multivariate analyses were performed by the Cox proportional hazard regression model, and survival curves were estimated by the Kaplan–Meier method. The positivity determined by IHC of c-MET was 24.8%, and the MET amplification rate was 2.3%. The positivity rates of HER2 and PDL1 were 8% and 34.7%, respectively. PDL1 expression had a significantly positive association with c-MET expression. c-MET positivity played a significant prognostic role in disease-free survival (DFS) (P = 0.032). Patients with mesenchymal-epithelial transition (MET) amplification had significantly poorer prognosis on both DFS and overall survival (OS). Subgroup analysis showed that in HER2-negative patients, but not in HER2-positive patients, MET-positive patients had significantly worse DFS (P = 0.000) and OS (P = 0.006). c-MET regulated the expression of PDL1 through an AKT-dependent pathway. c-MET inhibitor enhanced the T-cell killing ability and increased the efficacy of PD1 antibody. c-MET was found to be an independent prognostic factor for DFS of GC patients. A combination of c-MET inhibitors and PD1 antibodies could enhance the killing capacity of T cells, providing a preliminary basis for the clinical research on the same combination in GC treatment.


2014 ◽  
Vol 50 ◽  
pp. e49
Author(s):  
R. Eghdam Zamiri ◽  
M. Moghimi ◽  
A. Yaghoobi Gooybari ◽  
S. Keyhanian ◽  
S. Mazloomzadeh ◽  
...  

2013 ◽  
Vol 31 (2) ◽  
pp. 605-612 ◽  
Author(s):  
TAKESHI IIDA ◽  
MAKOTO IWAHASHI ◽  
MASAHIRO KATSUDA ◽  
KOICHIRO ISHIDA ◽  
MIKIHITO NAKAMORI ◽  
...  

2010 ◽  
Vol 13 (3) ◽  
pp. 191-196 ◽  
Author(s):  
Takeo Fukagawa ◽  
Mitsuru Sasako ◽  
Seiji Ito ◽  
Hayao Nakanishi ◽  
Hisae Iinuma ◽  
...  

2021 ◽  
pp. 1-12
Author(s):  
Yanjie You ◽  
Shengjuan Hu

BACKGROUND: We have previously characterized esophageal carcinoma-related gene 4 (ECRG4) as a novel tumor suppressor gene, which is frequently inactivated in nasopharyngeal carcinoma and breast cancer. Nevertheless, the expression status and prognostic significance of ECRG4 maintain elusive in human gastric cancer. Herein, we examined ECRG4 expression profile in gastric cancer and assessed its association with clinicopathological characteristics and patient survival. METHODS: Online data mining, real-time RT-PCR and immunohistochemistry were employed to determined ECRG4 expression at transcriptional and protein levels in tumors vs. noncancerous tissues. Statistical analyses including the Kaplan-Meier survival analysis and the Cox hazard model were utilized to detect the impact on clinical outcome. Moreover, ECRG4 expression was silenced in gastric cancer SGC7901 cells, and cell proliferation, colony formation and invasion assays were carried out. RESULTS: ECRG4 mRNA and protein levels were obviously downregulated in cancer tissues than noncancerous tissues. Statistical analyses demonstrated that low ECRG4 expression was found in 34.5% (58/168) of primary gastric cancer tissues, which was associated with higher histological grade (P= 0.018), lymph node metastasis (P= 0.011), invasive depth (P= 0.020), advanced tumor stage (P= 0.002) and poor overall survival (P< 0.001). Multivariate analysis showed ECRG4 expression is an independent prognostic predictor (P< 0.001). Silencing ECRG4 expression promoted gastric cancer cell growth and invasion. Western blot analysis revealed the anti-metastatic functions of ECRG4 by downregulating of E-cadherin and α-Catenin, as well as upregulating N-cadherin and Vimentin. CONCLUSIONS: Our observations reveal that ECRG4 expression is involved in gastric cancer pathogenesis and progression, and may serve as a candidate prognostic biomarker for this disease.


2021 ◽  
Vol 7 (5) ◽  
pp. 3896-3904
Author(s):  
Daoting Deng ◽  
Hong Zhang ◽  
Junxi Liu ◽  
Lina Ma ◽  
Xinrui Lei ◽  
...  

To explore exosomal miR-375 expression in gastric cancer patients and its relationship with patient prognosis. A total of 53 patients diagnosed with gastric cancer in our hospital from May 2014 to May 2016 were included as the gastric cancer group, and 46 healthy women who came to our hospital for physical examination during the same period were enrolled as the healthy group. Exosomal miR-375 expression level was detected using qRT-PCR, and the diagnostic performance and prognostic significance of exosomal miR-375 in gastric cancer were explored. The gastric cancer group showed increased exosomal miR-375 expression than the healthy group (P< 0.05); Kaplan-Meier survival analysis exhibited that serum exosomal miR-375 has an AUC of 0.778, sensitivity of 69.57%, and specificity of 75.47%, whereas Cox regression analysis showed that the miR-375 expression in exosomes was an independent risk factor affecting the prognosis of gastric cancer patients (P< 0.05). Patient with gastric cancer showed upregulated miR-375 expression in serum exosomes. Serum exosomal miR-375 was found to has positive sensitivity and specificity in the diagnosis of gastric cancer, which may be associated with poor prognosis of gastric cancer patients.


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