Results: 10

PREX2 gene's expression in gastric antral epithelial cells of patients with H. pylori infection

Arq. gastroenterol; 58 (3), 2021
ABSTRACT BACKGROUND: The Prex2 protein is a member of the Rac family proteins that belongs to small G proteins with a critical role in cell migration, cell proliferation, and apoptosis through its effects on PI3K cell signaling pathway and phosphatase activity of PTEN protein. The effect of PREX2 gene ...

miR-378a-5p and miR-630 induce lens epithelial cell apoptosis in cataract via suppression of E2F3

Braz. j. med. biol. res; 53 (5), 2020
Cataract, an eye disease that threatens the health of millions of people, brings about severe economic burden for patients and society. MicroRNA (miR)-378a-5p and miR-630 were recognized as essential regulators in multiple cancers. However, the exact functions of miR-378a-5p and miR-630 in cataract are s...

Mast cells-derived MiR-223 destroys intestinal barrier function by inhibition of CLDN8 expression in intestinal epithelial cells

Biol. Res; 53 (), 2020
BACKGROUND: Mast cells (MCs) have been found to play a critical role during development of inflammatory bowel disease (IBD) that characterized by dysregulation of inflammation and impaired intestinal barrier function. However, the function of MCs in IBD remains to be fully elucidated. RESULTS: In our stu...

Functional and genomic characterization of three novel cell lines derived from a metastatic gallbladder cancer tumor

Biol. Res; 53 (), 2020
BACKGROUND: Gallbladder cancer (GBC) is the most common tumor of the biliary tract. The incidence of GBC shows a large geographic variability, being particularly frequent in Native American populations. In Chile, GBC represents the second cause of cancer-related death among women. We describe here the es...

LncRNA LINC00483 promotes gastric cancer development through regulating MAPK1 expression by sponging miR-490-3p

Biol. Res; 53 (), 2020
BACKGROUND: Previous studies have shown that long noncoding RNA (IncRNA) LINC00483 was aberrantly expressed in human cancers, including gastric cancer. However, the regulatory mechanism of this IncRNA in gastric cancer remains largely unknown. The present study aimed to investigate the effect of LINC0048...

La leptina promueve la expresión de Hic-5 y la formación de puntos de actina por la vía dependiente de FAK-Src en células epiteliales mamarias MCF10A

Biomédica (Bogotá); 39 (3), 2019
Resumen Introducción. La leptina es una hormona secretada por los adipocitos que se ha relacionado con el proceso de la transición de epitelio a mesénquima (Epithelial- Mesenchymal Transition, EMT). Promueve la migración e invasión de las células del epitelio mamario mediante la activación de las...

Primary cultures of mouse small intestinal epithelial cells using the dissociating enzyme type I collagenase and hyaluronidase

Braz. j. med. biol. res; 50 (5), 2017
The epithelium is a highly dynamic system, which plays a crucial role in the homeostasis of the intestinal tract. However, studies on the physiological and pathophysiological functions of intestinal epithelial cells (IECs) have been hampered due to lack of normal epithelial cell models. In the present st...

Processo autofágico no reconhecimento de Escherichia coli enteroinvasora: um possível mecanismo da degradação bacteriana por células epiteliais

O reconhecimento de bactérias invasoras pelas células hospedeiras através do processo autofágico é um fator chave na determinação da infecção bacteriana. Escherichia coli enteroinvasora (EIEC) possui uma proteína, denominada IcsB, que em estudos em Shigella, é responsável pela inativação de...

Differential expression of upstream stimulatory factor (USF) 2 variants in eutopic endometria from women with endometriosis: estradiol regulation

Biol. Res; 48 (), 2015
BACKGROUND: Endometriosis, pro-inflammatory and invasive benign disease estrogen dependent, abnormally express in endometria the enzyme P450Arom, positively regulated by steroid factor-1 (SF-1). Our objective was to study the nuclear protein contents of upstream stimulating factor 2 (USF2a and USF2b), a ...

Estudio del sistema purinérgico a través de la caracterización de la enzima E-NPP3 y de la secreción de ATP en células uroepiteliales de la vejiga urinaria del ratón

El presente trabajo involucra el estudio del sistema purinérgico mediante la purinérgico mediante la purificación y la caracterización bioquimica de la ecto-enzima E-NPP3 soluble, la cual modula la activación de los receptores purinérgicos mediante la hidrólisis de los nucleótidos extracelulares....