RRR-α-Tocopherol succinate down-regulates oncogenic Ras signaling
نویسندگان
چکیده
منابع مشابه
RRR-alpha-tocopherol succinate down-regulates oncogenic Ras signaling.
alpha-Tocopherol succinate (TS), an analogue of vitamin E, has growth-inhibitory activity in a wide spectrum of in vitro and in vivo cancer models. Here, we report that modulation of oncogenic Ras is associated with TS activity. TS inhibits the proliferation and induces apoptosis of NIH3T3 cells stably transfected with oncogenic K-Ras and H-Ras, but not NIH3T3 cells expressing empty vector. TS ...
متن کاملRRR-A-Tocopherol succinate down-regulates oncogenic Ras signaling
A-Tocopherol succinate (TS), an analogue of vitamin E, has growth-inhibitory activity in a wide spectrum of in vitro and in vivo cancer models. Here, we report that modulation of oncogenic Ras is associated with TS activity. TS inhibits the proliferation and induces apoptosis of NIH3T3 cells stably transfected with oncogenic K-Ras and H-Ras, but not NIH3T3 cells expressing empty vector. TS trea...
متن کاملThe naturally occurring α-tocopherol stereoisomer RRR-α-tocopherol is predominant in the human infant brain.
α-Tocopherol is the principal source of vitamin E, an essential nutrient that plays a crucial role in maintaining healthy brain function. Infant formula is routinely supplemented with synthetic α-tocopherol, a racaemic mixture of eight stereoisomers with less bioactivity than the natural stereoisomer RRR-α-tocopherol. α-Tocopherol stereoisomer profiles have not been previously reported in the h...
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The Ras gene product is a monomeric membrane-localized G protein of 21 kd that functions as a molecular switch linking receptor and nonreceptor tyrosine kinase activation to downstream cytoplasmic or nuclear events. Each mammalian cell contains at least three distinct ras proto-oncogenes encoding closely related, but distinct proteins. Activating mutations in these Ras proteins result in consti...
متن کاملTargeting oncogenic Ras signaling in hematologic malignancies.
Ras proteins are critical nodes in cellular signaling that integrate inputs from activated cell surface receptors and other stimuli to modulate cell fate through a complex network of effector pathways. Oncogenic RAS mutations are found in ∼25% of human cancers and are highly prevalent in hematopoietic malignancies. Because of their structural and biochemical properties, oncogenic Ras proteins a...
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ژورنال
عنوان ژورنال: Molecular Cancer Therapeutics
سال: 2006
ISSN: 1535-7163,1538-8514
DOI: 10.1158/1535-7163.mct-05-0330