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Cancer: Gastric (Stomach) Cancer

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Woman diagnoses her own ovarian cancer with Google search
Sadie Rance turns to internet search engine for answers after being told stomach pains and constipation were due to Irritable Bowel Syndrome
Source: Telegraph Health - February 6, 2015 Category: Consumer Health News Tags: search ovarian Irritable Bowel Syndrome Sadie Rance diagnosed Cancer Google Source Type: news

Auranofin, an Anti-rheumatic Gold Drug, Aggravates the Radiation-Induced Acute Intestinal Injury in Mice
Conclusion In this study, we found that a non-toxic dose of auranofin significantly aggravated the severity of the radiation-induced intestinal injury. This suggests that auranofin treatment can be an independent factor that influences the risk of intestinal complications after pelvic or abdominal radiotherapy. Ethics Statement All the protocols used in this study were approved by the Institutional Animal Care and Use Committee of the Korean Institute of Radiological and Medical Sciences (IACUC permit number: KIRAMS217-0007). Author Contributions H-JL, JS, and Y-BL designed the experiments. EL and JK conducted the exp...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

Inhibitory effect of siRNA-Annexin A7 on growth, migration, and invasion in BGC823 cells and gastric cancer xenograftsin nude mice.
CONCLUSION: Gastric cancer xenografts were established in nude mice with human gastric cancer BGC823 cells. The volume and weight of tumor were decreased after inhibition of Annexin A7 expression in BGC823 cells. Tumor cells were arranged sparsely after inhibition of Annexin A7 expression in BGC823 cells. The siRNA-Annexin A7 inhibits Annexin A7 expression in transplanted gastric cancer of nude mice, and influences the growth, migration, and invasion of tumors by down-regulating the expression of PCNA and MMP-2, as well as up-regulating the expression of p27. PMID: 32211092 [PubMed]
Source: International Journal of Clinical and Experimental Pathology - March 28, 2020 Category: Pathology Authors: Yuan HF, Li Y, Tan BB, Zhao Q, Fan LQ, An ZJ Tags: Int J Clin Exp Pathol Source Type: research

Co ‐delivery of HIF‐1α siRNA and 5‐fluorouracil to overcome drug resistance in gastric cancer SGC‐7901 cells
ConclusionsCo‐delivery of siRNA and 5‐fluorouracil chitosan nanoparticles is an attractive strategy to overcome multidrug resistance.
Source: The Journal of Gene Medicine - September 1, 2017 Category: Genetics & Stem Cells Authors: Yunna Chen, Li Sun, Dongdong Guo, Ziteng Wu, Weidong Chen Tags: RESEARCH ARTICLE Source Type: research

Development and characterization of a novel cationic PEGylated niosome-encapsulated forms of doxorubicin, quercetin and siRNA for the treatment of cancer by using combination therapy.
Authors: Hemati M, Haghiralsadat F, Yazdian F, Jafari F, Moradi A, Malekpour-Dehkordi Z Abstract The aim of this study was to optimize the cationic PEGylated niosome-containing anti-cancer drugs and siRNA to enhance the therapeutic response. Therefore, various surfactant-based (tween-60) vesicles of doxorubicin (DOX; a chemotherapeutic drug) and quercetin (QC; a chemosensitizer) were prepared. To load siRNA on niosomes, 1, 2-dioleoyl-3-trimethylammonium-propane (DOTAP) was used as a cationic lipid. The optimum formulation containing tween-60:cholesterol:DPPC:DOTAP:DSPE-PEG2000 at 49.5:5.5:15:25:5 demonstrated that ...
Source: Artificial Cells, Nanomedicine and Biotechnology - July 24, 2018 Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research

Maspin suppresses cell invasion and migration in gastric cancer through inhibiting EMT and angiogenesis via ITGB1/FAK pathway
This study aims to investigate how Maspin affects the EMT and angiogenesis of gastric cancer (GC) cells via ITGB1/FAK pathway. Immunohistochemistry was used to evaluate the expressions of Maspin, ITGB1, FAK, E-cadherin, Vimentin, D2-40, and CD34 in GC and adjacent normal tissues from 160 patients. Then, the human GC cells with different degree of differentiation were transfected with Maspin CRISPR activation plasmid, ITGB1 siRNA and/or Maspin siRNA, followed by the following experiments, including qRT-PCR, western blotting, tube formation assay, Transwell assay and wound healing. GC tumor tissues manifested decreased Maspi...
Source: Human Cell - May 13, 2020 Category: Cytology Source Type: research

The siRNA cocktail targeting VEGF and HER2 inhibition on the proliferation and induced apoptosis of gastric cancer cell.
Abstract The aim of this study was to investigate the inhibitory effect of a siRNA cocktail targeting Vascular endothelial growth factor (VEGF) and Human epidermal growth factor receptor 2 (HER2) on cell proliferation, induced apoptosis and the expression of VEGF and HER2 in human gastric carcinoma cell. The silencing rate of pre-designed siRNAs that targeted VEGF and HER2 was detected by Real-time Quantitative PCR (RT-QPCR) analysis. Furthermore, the best silencing siRNA that targeted VEGF and HER2 was prepared as a cocktail to co-knockdown VEGF and HER2 expression at both mRNA and protein levels which were detec...
Source: Molecular and Cellular Biochemistry - October 26, 2013 Category: Biochemistry Authors: Liu K, Chen H, You Q, Shi H, Wang Z Tags: Mol Cell Biochem Source Type: research

Chitosan/PIK3CA siRNA nanoparticle-mediated PIK3CA gene interference decreases the invasive capacity of gastric cancer cells in vitro.
CONCLUSION: PIK3CA gene interference mediated by PIK3CA/siRNA chitosan nanoparticle can decrease the invasive capacity of gastric cancer cells in vitro. PMID: 25345950 [PubMed - in process]
Source: Journal of Southern Medical University - October 1, 2014 Category: Universities & Medical Training Authors: Zhou XK, He L, Liang M, Liu JF Tags: Nan Fang Yi Ke Da Xue Xue Bao Source Type: research

Effects of siRNA-mediated silencing of myeloid cell leukelia-1 on the biological behaviors and drug resistance of gastric cancer cells.
CONCLUSION: Mcl-1 is implicated in the proliferation, invasion, apoptosis and drug resistance of GC cells, and may be a promising target for the therapy of GC. PMID: 26807186 [PubMed]
Source: American Journal of Translational Research - January 27, 2016 Category: Research Tags: Am J Transl Res Source Type: research

Exosomes serve as nanoparticles to suppress tumor growth and angiogenesis in gastric cancer by delivering hepatocyte growth factor siRNA
Exosomes derived from cells have been found to mediate signal transduction between cells and to act as efficient carriers to deliver drugs and small RNA. Hepatocyte growth factor (HGF) is known to promote the growth of both cancer cells and vascular cells, and the HGF‐cMET pathway is a potential clinical target. Here, we characterized the inhibitory effect of HGF siRNA on tumor growth and angiogenesis in gastric cancer. In addition, we showed that HGF siRNA packed in exosomes can be transported into cancer cells, where it dramatically downregulates HGF expression. A cell co‐culture model was used to show that exosomes ...
Source: Cancer Science - February 11, 2018 Category: Cancer & Oncology Authors: Haiyang Zhang, Yi Wang, Ming Bai, Junyi Wang, Kegan Zhu, Rui Liu, Shaohua Ge, JiaLu Li, Tao Ning, Ting Deng, Qian Fan, Hongli Li, Wu Sun, Guoguang Ying, Yi Ba Tags: ORIGINAL ARTICLE Source Type: research

Acid-degradable Dextran as an Image Guided siRNA Carrier for COX-2 Downregulation
Conclusions: We successfully developed an efficient method to produce an acid-degradable dextran nanopolymer containing cleavable amine groups as the siRNA carrier. Because of its biocompatibility, this degradable dextran delivered COX-2 siRNA within tumors and efficiently downregulated COX-2 expression.
Source: Theranostics - June 20, 2018 Category: Molecular Biology Authors: Zhihang Chen, Balaji Krishnamachary, Marie-France Penet, Zaver M. Bhujwalla Tags: Research Paper Source Type: research

Fluorescent carbon dots as an efficient siRNA nanocarrier for its interference therapy in gastric cancer cells
Conclusion: The Cdots-based and PEI-adsorbed complexes both as imaging agents and siRNA nanocarriers have been developed for Survivin siRNA delivery. And the results indicate that Cdots-based nanocarriers could be utilized in a broad range of siRNA delivery systems for cancer therapy.
Source: Journal of Nanobiotechnology - December 30, 2014 Category: Nanotechnology Authors: Qing WangChunlei ZhangGuangxia ShenHuiyang LiuHualin FuDaxiang Cui Source Type: research

Circular RNA circNF1 siRNA Silencing Inhibits Glioblastoma Cell Proliferation by Promoting the Maturation of miR-340
This study aimed to analyze the role of circNF1 in glioblastoma (GBM). The expression of circNF1, mature miR-340, and miR-340 precursor in paired GBM and non-cancer tissues from GBM patients (n = 50) was analyzed by RT-qPCR. GBM cells were transfected with circNF1 siRNA, followed by the analysis of the expression of mature miR-340 and miR-340 precursor, to study the effects of circNF1 knockdown on the maturation of miR-340. The CCK-8 assay was carried out to explore the role of circNF1 and miR-340 in the proliferation of GBM cells. circNF1 expression was found to be upregulated in GBM and was correlated with patient surviv...
Source: Frontiers in Neurology - September 13, 2021 Category: Neurology Source Type: research

Effect of siRNA targeting HDAC1 gene on proliferation, apoptosis, histone acetylation, and histone metylation in gastric cancer cells in vitro.
CONCLUSION: Silencing HDAC1 gene expression with HDAC1 siRNA can promote histone H3 and H4 acetylation and inhibit histone methylation of H3K9 to suppress the proliferation and induce apoptosis of gastric cancer MGC-803 cells. PMID: 24589606 [PubMed - in process]
Source: Journal of Southern Medical University - February 20, 2014 Category: Universities & Medical Training Authors: Zhuang HX, Ma XD, Lai YD, Xu XN, Wang XZ Tags: Nan Fang Yi Ke Da Xue Xue Bao Source Type: research