Gastric Carcinogenesis
Mostrando 1-12 de 49 artigos, teses e dissertações.
-
1. MicroRNA-383-5p inhibits the progression of gastric carcinoma via targeting HDAC9 expression
MicroRNAs (miRNAs), as post-transcriptional regulators, have been reported to be involved in the initiation and progression of various types of cancer, including gastric cancer (GC). The present study aimed to investigate the role of miR-383-5p in gastric carcinogenesis. Cell viability was analyzed using CCK-8 kit. Annexin V-fluorescein isothiocyanate/propid
Braz J Med Biol Res. Publicado em: 29/07/2019
-
2. The ERBB2 gene polymorphisms rs2643194, rs2934971, and rs1058808 are associated with increased risk of gastric cancer
Gastric cancer (GC) is the third most lethal type of cancer worldwide. Single nucleotide polymorphisms (SNPs) in regulatory sites or coding regions can modify the expression of genes involved in gastric carcinogenesis, as ERBB2, which encodes for the tyrosine-kinase receptor HER-2. The aim of this work was to analyze the association of the polymorphisms: rs2
Braz J Med Biol Res. Publicado em: 16/05/2019
-
3. THE CANONICAL WNT PATHWAY IN GASTRIC CARCINOMA
RESUMO Racional : Acredita-se que a via Wnt é uma das mais importantes da sinalização envolvidas na carcinogênese gástrica. Objetivos : Analisar a expressão das proteínas das vias Wnt canônicas e não-canônicas no carcinoma gástrico e relacionar sua expressão com as variáveisclinicopatológicas. Método : Foram coletadas 72 amostras de c
ABCD, arq. bras. cir. dig.. Publicado em: 07/01/2019
-
4. FGFR1 is an independent prognostic factor and can be regulated by miR-497 in gastric cancer progression
Fibroblast growth factor receptor 1 (FGFR1) has been reported in gastric cancer to be a prognostic factor. However, miR-497-targeted FGFR1 has not been explored in the carcinogenesis of gastric cancer. The present study intended to revalidate the prognostic significance of FGFR1 in patients with gastric cancer, and the mechanism of miR-497-regulated FGFR1 wa
Braz J Med Biol Res. Publicado em: 23/11/2018
-
5. PPARγ induces growth inhibition and apoptosis through upregulation of insulin-like growth factor-binding protein-3 in gastric cancer cells
Peroxisome proliferator activator receptor-gamma (PPARγ) is a ligand-activated transcriptional factor involved in the carcinogenesis of various cancers. Insulin-like growth factor-binding protein-3 (IGFBP-3) is a tumor suppressor gene that has anti-apoptotic activity. The purpose of this study was to investigate the anticancer mechanism of PPARγ with respe
Braz J Med Biol Res. Publicado em: 13/01/2015
-
6. CagA phosphorylation EPIYA-C motifs and the vacA i genotype in Helicobacter pylori strains of asymptomatic children from a high-risk gastric cancer area in northeastern Brazil
Helicobacter pylori infection is one of the most common infections worldwide and is associated with gastric diseases. Virulence factors such as VacA and CagA have been shown to increase the risk of these diseases. Studies have suggested a causal role of CagA EPIYA-C in gastric carcinogenesis and this factor has been shown to be geographically diverse. We in
Mem. Inst. Oswaldo Cruz. Publicado em: 09/12/2014
-
7. DNA methylation regulates expression of VEGF-C, and S-adenosylmethionine is effective for VEGF-C methylation and for inhibiting cancer growth
DNA hypomethylation may activate oncogene transcription, thus promoting carcinogenesis and tumor development. S-adenosylmethionine (SAM) is a methyl donor in numerous methylation reactions and acts as an inhibitor of intracellular demethylase activity, which results in hypermethylation of DNA. The main objectives of this study were to determine whether DNA h
Braz J Med Biol Res. Publicado em: 30/09/2014
-
8. Serum metabolic profiling of human gastric cancer based on gas chromatography/mass spectrometry
Research on molecular mechanisms of carcinogenesis plays an important role in diagnosing and treating gastric cancer. Metabolic profiling may offer the opportunity to understand the molecular mechanism of carcinogenesis and help to non-invasively identify the potential biomarkers for the early diagnosis of human gastric cancer. The aims of this study were to
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-01
-
9. Análise proteômica diferencial na carcinogênese gástrica. / Differential proteomic analysis in gastric carcinogenesis
O câncer gástrico é o quarto tipo de tumor mais comum e a segunda maior causa de morte por câncer no mundo. No Estado do Pará, essa neoplasia é um grave problema de saúde pública, pois é diagnosticada em estágios avançados, com taxas de sobrevida extremamente baixas. Esses fatos reforçam a gravidade dessa patologia e a necessidade de novos estudo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/04/2011
-
10. Expression of TERT in precancerous gastric lesions compared to gastric cancer
The objective of this study was to determine the levels of TERT mRNA and TERT protein expression in stomach precancerous lesions such as intestinal metaplasia (IM) and gastric ulcer (GU) and compare them to gastric cancer (GC). Real-time PCR was performed to detect TERT mRNA expression levels in 35 biopsies of IM, 30 of GU, and 22 of GC and their respective
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-02
-
11. The polymorphism -251 A/T in the promoter region of the interleukin 8 gene and the risk of gastric cancer: case-control study. / O polimorfismo 251 A/T na região promotora do gene da interleucina 8 e o risco de câncer gástrico: estudo caso-controle.
Background: Helicobacter pylori infection is associated with gastric cancer (GC) non-cardia, however, only a small proportion of infected people develop this cancer. Studies on specific strains of bacteria showed that the genetic and environmental factors are associated with this carcinogenesis. Interleukin-8 (IL-8) plays an important role in inflammation of
Publicado em: 2010
-
12. Hibridação genômica comparativa (CGH) em neoplasias gástricas de indivíduos do estado do Pará. / Comparative Genomic hybridization (CGH) in individuals from Northern Brazil with gastric adenocarcinoma.
Gastric adenocarcinoma is a serious public health concern, especially in the Northern Brazil. Gastric cancer can be subdivided into diffuse-type and intestinal-type. Genetic imbalances in diffuse-type gastric cancer remain largely unknown. In the present study, we analyzed 24 advanced diffuse-type gastric cancer samples from Northern Brazil subjects using hi
Publicado em: 2009