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Title: Immunoexpression of DIABLO, AIF and Cytochrome c in Gastric Adenocarcinoma Assessed by Tissue Microarray
Authors: Silva, Larissa Comparini da [UNIFESP]
Forones, Nora Manoukian [UNIFESP]
Ribeiro, Daniel Araki [UNIFESP]
Ihara, Silvia Sauli Miki [UNIFESP]
Gomes, Thiago Simao [UNIFESP]
Artigiani Neto, Ricardo [UNIFESP]
Oshima, Celina Tizuko Fujiyama [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Keywords: Gastric adenocarcinoma
cytochrome c
Issue Date: 1-Feb-2013
Publisher: Int Inst Anticancer Research
Citation: Anticancer Research. Athens: Int Inst Anticancer Research, v. 33, n. 2, p. 647-653, 2013.
Abstract: The aim of this study was to analyze the immunoexpressioh of (Smac) DIABLO, AIF, cytochrome c, Ki-67 and cleaved caspase-3 in gastric cancer. A tissue microarray (TMA) paraffin block was constructed using gastric adenocarcinoma tissue and adjacent normal adjacent mucosa from 87 patients who had not previously undergone radiotherapy or chemotherapy. Immunohistochemistry was used to evaluate the protein levels. Samples were positive for (Smac) DIABLO in 37 (45.6%) and 37 (46.8%), for AIF in 31 (36.9%) and 36 (45.6%), for cytochrome c in 60 (68.9%) and 44 (54.4%), for Ki-67 in 63 (72.4%) and 52 (61.9%) and for cleaved caspase-3 in 21 (24.1%) and 3 (3.4%) cases of tumor and adjacent normal tissues, respectively. Our results suggest that increased expression of Ki-67 and cleaved caspase-3 could contribute to carcinogenesis. The expression of these proteins indicates an attempt of cells to maintain tissue homeostasis.
ISSN: 0250-7005
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Appears in Collections:Artigo

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