Results: 12

Intervenciones genéticas de Aedes aegypti para el control de arbovirosis

La ineficacia de las estrategias actuales para el control químico de los mosquitos vectores plantea la necesidad de desarrollar enfoques novedosos, entre estos están las estrategias genéticas para reducir las poblaciones de mosquitos vectores o sustituirlos por aquellos que no son capaces de transmiti...

Lentivirus vectors fail to deliver transgenes into bovine zygotes after co-incubation with sperm during in vitro fertilization

As vantagens dos animais transgênicos têm sido demonstradas em diferentes aplicações, entretanto muitas metodologias usadas para gerar animais geneticamente modificados (GM) apresentam baixas taxas de eficiência. O objetivo deste estudo foi avaliar a entrega dos vetores lentivirais (VLs) em zigotos ...

Learning from transgenics: advanced gene editing technologies should also bridge the gap with traditional genetic selection

We highlight the importance of the mixed genetic approaches (classical and currents) to improve the social perception related to the GMOs acceptance. We pointed out that CRISPR/Cas9 events could carry DNA variability/rearrangements related to somaclonal variations or epigenetic changes that are independe...

An update on the tools for creating transgenic animal models of human diseases - focus on atherosclerosis

Braz. j. med. biol. res; 52 (5), 2019
Animal models of diseases are invaluable tools of modern medicine. More than forty years have passed since the first successful experiments and the spectrum of available models, as well as the list of methods for creating them, have expanded dramatically. The major step forward in creating specific disea...

Perspectives for cancer immunotherapy mediated by p19Arf plus interferon-beta gene transfer

Clinics; 73 (supl.1), 2018
While cancer immunotherapy has gained much deserved attention in recent years, many areas regarding the optimization of such modalities remain unexplored, including the development of novel approaches and the strategic combination of therapies that target multiple aspects of the cancer-immunity cycle. Ou...

Introduction of a synthetic Thermococcus-derived α-amlyase gene into barley genome for increased enzyme thermostability in grains

Background: The enzymes utilized in the process of beer production are generally sensitive to higher temperatures. About 60% of them are deactivated in drying the malt that limits the utilization of starting material in the fermentation process. Gene transfer from thermophilic bacteria is a promising too...

Lentivirus mediated silencing of Ubiquitin Specific Peptidase 39 inhibits cell proliferation of human hepatocellular carcinoma cells in vitro

Biol. Res; 48 (), 2015
BACKGROUND: Ubiquitin Specific Peptidase 39 (USP39) is a 65 kDa SR-related protein involved in RNA splicing. Previous studies showed that USP39 is related with tumorigenesis of human breast cancer cells. RESULTS: In the present study, we investigated the functions of USP39 in human hepatocellular carcino...

Optimization of transgenesis conditions for the generation of CXCL2-luciferase reporter mice line

Electron. j. biotechnol; 16 (6), 2013
Background: Transgenesis by microinjection has been widely used for the generation of different mouse models. Different variables of the procedure may critically affect the efficiency of the process. A DNA construction that carries the CXCL2 promoter gene and firefly luciferase has been used to optimize ...