Teratogen-induced eye defects mediated by p53-dependent apoptosis
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چکیده
منابع مشابه
Teratogen-induced eye defects mediated by p53-dependent apoptosis
BACKGROUND Many birth defects are believed to involve gene-environment interactions, although the mechanisms involved are poorly understood. Apoptosis is a common effect of many kinds of environmental stresses on the developing embryo; therefore, mechanisms of teratogenesis may be approached within the context of the cell death program. The p53 tumor suppressor gene encodes a transcription fact...
متن کاملTeratogen-induced activation of p53 in early postimplantation mouse embryos.
Hyperthermia (HS) and 4-hydroperoxycyclophosphamide (4CP) activate the mitochondrial apoptotic pathway in day 9 mouse embryos. Previous microarray analyses Microarray analyses revealed that several p53 target genes are upregulated after exposure to HS or 4CP, suggesting a role for p53 in teratogen-induced apoptosis. To explore the role of p53, we assessed the activation of p53 in day 9 mouse em...
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BRCA1 plays a key role in the regulation of p53-dependent target gene transcription activation. Meanwhile, the p53 inducible gene 3 (PIG3) is a downstream target of p53 and is involved in p53-initiated apoptosis. However, little is known about whether BRCA1 can regulate PIG3-mediated apoptosis. Using a tissue microarray containing 149 breast cancer patient samples, we found that BRCA1 and PIG3 ...
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Mouse embryo fibroblasts (MEFs) expressing the adenovirus E1A protein undergo apoptosis upon exposure to ionizing radiation. We show here that immediately following gamma-irradiation, latent p53 formed a complex with the catalytic subunit of the DNA-dependent protein kinase (DNA-PK(CS)). The complex formation was DNase sensitive, suggesting that the proteins came together on the DNA, conceivabl...
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ژورنال
عنوان ژورنال: Current Biology
سال: 1996
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(02)00422-0