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Data/hora: 09/06/2024 18:28:53

Expression of E-cadherin, Snail and Hakai in epithelial cells isolated from the primary tumor and from peritumoral tissue of invasive ductal breast carcinomas
Provedor de dados: 56
Autores: Makdissi,F.B.A.; Machado,L.V.S.T.; Oliveira,A.G.C.; Benvenuti,T.T.; Katayama,M.L.H.; Brentani,M.M.; Osório,C.A.B.T.; Mourão Netto,M.; Lyra,E.C.; Carvalho,F.; Góes,J.C.S.; Folgueira,M.A.A.K.
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...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breast cancer; E-cadherin; Snail; Hakai.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001200002

Gene expression profiling of clinical stages II and III breast cancer
Provedor de dados: 56
Autores: Folgueira,M.A.A.K.; Brentani,H.; Katayama,M.L.H.; Patrão,D.F.C.; Carraro,D.M.; Mourão Netto,M.; Barbosa,E.M.; Caldeira,J.R.F.; Abreu,A.P.S.; Lyra,E.C.; Kaiano,J.H.L.; Mota,L.D.; Campos,A.H.J.F.M.; Maciel,M.S.; Dellamano,M.; Caballero,O.L.S.D.; Brentani,M.M.
Clinical stage (CS) is an established indicator of breast cancer outcome. In the present study, a cDNA microarray platform containing 692 genes was used to identify molecular differences between CSII and CSIII disease. Tumor samples were collected from patients with CSII or CSIII breast cancer, and normal breast tissue was collected from women without invasive cancer. Seventy-eight genes were deregulated in CSIII tumors and 22 in CSII tumors when compared to normal tissue, and 20 of them were differentially expressed in both CSII and CSIII tumors. In addition, 58 genes were specifically altered in CSIII and expression of 6 of them was tested by real time RT-PCR in another cohort of patients with CSII or CSIII breast cancer and in women without cancer....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breast cancer; CDNA microarray; Clinical stage; Gene expression.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000800013