نتایج جستجو برای: activation map alffand methods
تعداد نتایج: 2414008 فیلتر نتایج به سال:
Previous studies have shown that the activation of p44 and p42 mitogen-activated protein (MAP) kinases (ERK1 and ERK2) by growth hormone (GH) and phorbol esters, but not by epidermal growth factor, in 3T3-F442A preadipocytes is dependent on protein kinase C (PKC). In the present study two approaches have been taken to determine the PKC isoform dependence of MAP kinase activation in these cells....
Air pollutants including diesel exhaust particles (DEPs) have been shown to enhance allergic responses. DEPs stimulate airway epithelial cells to produce various cytokines; however, the intracellular signal transduction pathway and the involvement of reduction and oxidation (redox) control in DEP-activated signaling have not been determined. In the present study, we therefore examined the role ...
We have identified human ArhGAP9 as a novel MAP kinase docking protein that interacts with Erk2 and p38alpha through complementarily charged residues in the WW domain of ArhGAP9 and the CD domains of Erk2 and p38alpha. This interaction sequesters the MAP kinases in their inactive states through displacement of MAP kinase kinases targeting the same sites. While over-expression of wild type ArhGA...
The mammalian mitogen-activated protein (MAP) kinase homologue p38 has been shown to be activated by pro-inflammatory cytokines as well as physical and chemical stresses. We now show that a variety of hemopoietic growth factors, including Steel locus factor, colony stimulating factor-1, granulocyte/macrophage-colony stimulating factor, and interleukin-3, activate p38 MAP kinase and the downstre...
Oocyte meiotic maturation is triggered by different stimuli (hormones, unknown signals through cell interactions) in different species. These stimuli indirectly lead to the activation of a major cell cycle regulating activity, the maturation promoting factor (MPF). Other factors, such as the product of the proto-oncogene c-mos or enzymes of the MAP kinase family, are also involved in the proces...
Mos is normally expressed during oocyte meiotic maturation in vertebrates. However, apart from its cytostatic factor (CSF) activity, its precise role during mouse meiosis is still unknown. First, we analyzed its role as a MAP kinase kinase kinase. Mos is synthesized concomitantly with the activation of MAP kinase in mouse oocytes. Moreover, MAP kinase is not activated during meiosis in oocytes ...
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