3 Rnai
Mostrando 1-12 de 180 artigos, teses e dissertações.
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1. A germline-targeted genetic screen for xrn-2 suppressors identifies a novel gene C34C12.2 in Caenorhabditis elegans
Abstract XRN2 is an evolutionarily conserved 5’-to-3’ exoribonuclease, which degrades or trims various types of RNA in the nucleus. Although XRN-2 is essential for embryogenesis, larval development and reproduction in Caenorhabditis elegans, relevant molecular pathways remain unidentified. Here we create a germline-specific xrn-2 conditional mutant and p
Genetics and Molecular Biology. Publicado em: 2023
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2. Mechanism of hif-1α mediated hypoxia-induced permeability changes in bladder endothelial cells
This study aimed to investigate the mechanism of hypoxia-inducible factor-1 alpha (HIF-1α) mediated hypoxia-induced permeability changes in bladder endothelial cells. Models of in vitro hypoxic cell culture of bladder cancer, bladder cancer cells with low HIF-1α expression and HIF-1α RNA interference (RNAi) expression vector were established. Western blot
Braz J Med Biol Res. Publicado em: 18/12/2017
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3. Short interfering RNAs targeting a vampire-bat related rabies virus phosphoprotein mRNA
Abstract The aim of this study was to assess the in vitro and in vivo effects of short-interfering RNAs (siRNAs) against rabies virus phosphoprotein (P) mRNA in a post-infection treatment for rabies as an extension of a previous report (Braz J Microbiol. 2013 Nov 15;44(3):879-82). To this end, rabies virus strain RABV-4005 (related to the Desmodus rotundus v
Braz. J. Microbiol.. Publicado em: 2017-07
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4. The PIN1 family gene PvPIN1 is involved in auxin-dependent root emergence and tillering in switchgrass
Abstract Switchgrass (Panicum virgatum L.; family Poaceae) is a warm-season C4 perennial grass. Tillering plays an important role in determining the morphology of aboveground parts and the final biomass yield of switchgrass. Auxin distribution in plants can affect a variety of important growth and developmental processes, including the regulation of shoot an
Genet. Mol. Biol.. Publicado em: 2016-03
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5. Lentiviral-mediated RNAi targeting caspase-3 inhibits apoptosis induced by serum deprivation in rat endplate chondrocytes in vitro
Current studies find that degenerated cartilage endplates (CEP) of vertebrae, with fewer diffusion areas, decrease nutrient supply and accelerate intervertebral disc degeneration. Many more apoptotic cells have been identified in degenerated than in normal endplates, and may be responsible for the degenerated grade. Previous findings suggest that inhibition
Braz J Med Biol Res. Publicado em: 2014-06
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6. Bivalent RNA interference to increase isoflavone biosynthesis in soybean (Glycine max)
In this work, a bivalent RNA interference (RNAi) plant-transformation vector was constructed to silence both the flavanone 3-hydroxylase (F3H) gene and the flavone synthase II (GmFNSII) gene in soybean (Glycine max). Two further unit RNAi vectors were constructed for each of these two genes. RNAi-mediated suppression of these genes effectively regulated flav
Braz. arch. biol. technol.. Publicado em: 26/11/2013
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7. Downregulation of caffeoyl-CoA O-methyltransferase (CCoAOMT) by RNA interference leads to reduced lignin production in maize straw
Lignin is a major cell wall component of vascular plants that provides mechanical strength and hydrophobicity to vascular vessels. However, the presence of lignin limits the effective use of crop straw in many agroindustrial processes. Here, we generated transgenic maize plants in which the expression of a lignin biosynthetic gene encoding CCoAOMT , a key en
Genet. Mol. Biol.. Publicado em: 25/10/2013
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8. Hemograma e sobrevivência de camarões marinhos após silenciamento do WSSV por RNA de interferência
O objetivo deste trabalho foi avaliar a proteção antiviral específica via RNA de interferência (RNAi) contra o vírus da síndrome da mancha-branca (WSSV), em camarões marinhos (Litopenaeus vannamei). Os camarões foram injetados com uma sequência dsRNA específica (vp28 do envelope viral), seguida por desafio com WSSV após 48 horas. Avaliaram-se o he
Pesq. agropec. bras.. Publicado em: 2013-08
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9. Identificação da subtilase responsável pelo processamento do prepopeptídeo AtRALF1 em Arabidopsis thaliana / Identification of the subtilase responsible for the prepropeptide AtRALF1 processing in Arabidopsis thaliana
Desde a década de 90, uma nova família de moléculas de origem protéica e com características hormonais vem sendo estudada em plantas. Esse grupo de novas moléculas, coletivamente chamado de peptídeos hormonais, está envolvido com defesa, reprodução, crescimento e desenvolvimento. RALF, que é um desses novos peptídeos, é ubíquo em plantas e est�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/01/2012
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10. RNAi-mediated knockdown of pituitary tumor- transforming gene-1 (PTTG1) suppresses the proliferation and invasive potential of PC3 human prostate cancer cells
Pituitary tumor-transforming gene-1 (PTTG1) is a proto-oncogene that promotes tumorigenesis and metastasis in numerous cell types and is overexpressed in a variety of human tumors. We have demonstrated that PTTG1 expression was up-regulated in both human prostate cancer specimens and prostate cancer cell lines. For a more direct assessment of the function of
Braz J Med Biol Res. Publicado em: 2012-11
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11. Análise funcional das isoformas citosólicas e peroxissomais de ascorbato peroxidade em arroz (Oryza sativa L)
As espécies reativas de oxigênio (ERO) são produzidas constantemente pelo metabolismo aeróbico. Em situações de estresse biótico ou abiótico, a produção é aumentada e a toxicidade das ERO pode conduzir a diversos danos celulares. As ERO atuam também como moléculas sinalizadoras regulando a expressão de genes de defesa a estresses, senescência,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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12. Os Genes Codificadores de Glutationa S-transferases na Abelha Apis mellifera: Expressão, Regulação e Função Durante e Após a Metamorfose. / The genes Encoding Glutathione S-transferases in the Honeybee (Apis mellifera): expression, regulation and function during and After Metamorphosis.
Em insetos, as enzimas glutationa S-transferases (GSTs) são conhecidas pela capacidade de degradar inseticidas, pesticidas e outros compostos químicos, naturais ou não naturais, estranhos ao organismo, podendo também promover o transporte intracelular de hormônios, metabólitos, e atuar na proteção celular contra o estresse oxidativo. Além disto, a f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/10/2011