105 research outputs found
Morfologia, características da carcaça e componentes do peso vivo em borregos Corriedale e Ideal
Características de carcaça de cordeiros Ideal e cruzas Border Leicester X Ideal submetidos a três sistemas alimentares
Expression of E-cadherin, Snail and Hakai in epithelial cells isolated from the primary tumor and from peritumoral tissue of invasive ductal breast carcinomas
Epithelial intercellular cohesion, mainly mediated by E-cadherin (CDH1) expression and function, may be deregulated during cancer cell invasion of adjacent tissues and lymphatic and vascular channels. CDH1 expression is down-modulated in invasive lobular breast carcinomas but its regulation in invasive ductal carcinomas (IDC) is less clear. CDH1 expression is repressed by transcription factors such as Snail (SNAI1) and its product is degraded after Hakai ubiquitination. We compared CDH1, SNAI1 and HAKAI mRNA expression in IDC and paired adjacent normal breast tissue and evaluated its relation with node metastasis and circulating tumor cells. Matched tumor/peritumoral and blood samples were collected from 30 patients with early IDC. Epithelial cells from each compartment (tumor/peritumoral) were recovered by an immunomagnetic method and gene expression was determined by real time RT-PCR. There were no differences in CDH1, SNAI1 and HAKAI mRNA expression between tumor and corresponding peritumoral samples and no differential tumoral gene expression according to nodal involvement. Another 30 patients with a long-term follow-up (at least 5 years) and a differential prognosis (good or poor, as defined by breast cancer death) had E-cadherin and Snail protein detected by immunohistochemistry in tumor samples. In this group, E-cadherin-positive expression, but not Snail, may be associated with a better prognosis. This is the first report simultaneously analyzing CDH1, SNAI1 and HAKAI mRNA expression in matched tumor and peritumoral samples from patients with IDC. However, no clear pattern of their expression could distinguish the invasive tumor compartment from its adjacent normal tissue.FAPESPCoordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES
Rendimentos dos cortes e não-componentes das carcaças de cordeiros terminados com dietas contendo diferentes fontes de óleo vegetal
Níveis de energia na alimentação de cordeiros em confinamento e composição regional e tecidual das carcaças
Efeito do sexo e do peso ao abate sobre a produção de carne de cordeiro. Morfometria da carcaça, pesos dos cortes, composição tecidual e componentes não constituintes da carcaça
Características quantitativas da carcaça de cordeiros terminados em confinamento e abatidos em diferentes condições corporais
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