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자료유형
학술저널
저자정보
Amirijavid, Shaghayegh (Department of Genetics, Tehran Medical Sciences Branch, Islamic Azad University) Entezari, Maliheh (Department of Genetics, Tehran Medical Sciences Branch, Islamic Azad University) Movafagh, Abolfazl (Department of Medical genetics, School of Medicine, Shahid Beheshti University of Medical Sciences) Hashemi, Mehrdad (Department of Genetics, Tehran Medical Sciences Branch, Islamic Azad University) Mosavi-Jarahi, Alireza (Department of Medical Laboratory Sciences, Tehran Medical Sciences Branch, Islamic Azad University) Dehghani, Hossein (Department of Epidemiology, Shahid Beheshti University of Medical Sciences)
저널정보
아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제17권 제3호
발행연도
2016.1
수록면
293 - 297 (5page)

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TRAIL, tumor necrosis factor (TNF)-related apoptosis-inducing ligand belongs to one of important cytokine superfamilIES, tumor necrosis factor ($TNF{\alpha}$). TRAIL-2 receptor agonists activate several cell signaling pathways in cells in different manners and could lead to apoptosis or necrosis. Agonistic egg yolk antibodies like IgY which have been developed in a selective manner could activate TRAIL death receptors such as TRAIL-2 (DR5) and thus apoptosis signaling. We here investigated induction of apoptosis in human breast cancer cells (MCF7 cell line) by an IgY produced against an 21 aminoacid epitope of the human TRAIL-2 receptor. As the first step a small peptide of 21 aminoacids choosen from the extracellular domain of DR5 protein was produced with a peptide synthesizer. After control assays and confirmation of the correct amino acid sequence, it was injected to hens immunized to achieve high affinity IgYs. At the next step, the produced IgYs were extracted and examined for specificity against DR5 protein by ELISA assay. Subsequently, the anticancer effect of such IgYs was determined by MTT assay in the MCF7 human breast cancer cell line. The produced peptides successfully immunized hens and the produced antibodies which accumulated in egg yolk specifically recognized the DR5 protein. IgYs exerted significant toxicity and killed MCF7 cells as shown by MTT assay.

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