Mammalian mitogen-activated protein kinase kinase kinase (MEKK) can function in a yeast mitogen-activated protein kinase pathway downstream of protein kinase C.
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Inactivation of mitogen-activated protein kinase signaling pathway reduces caspase-14 expression in impaired keratinocytes
Objective(s):Several investigations have revealed that caspase-14 is responsible for the epidermal differentiation and cornification, as well as the regulation of moisturizing effect. However, the precise regulation mechanism is still not clear. This study was aimed to investigate the expression of caspase-14 in filaggrin-deficient normal human epidermal keratinocytes (NHEKs) and to explore the...
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The kinase p38α MAPK (p38α) plays a pivotal role in many biological processes. p38α is activated by canonical upstream kinases that phosphorylate the activation region. The purpose of our study was to determine whether such activation may depend on redox-sensing cysteines within p38α. p38α was activated and formed a disulfide-bound heterodimer with MAP2K3 (MKK3) in rat cardiomyocytes and isolat...
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متن کاملThe mammalian mitogen activated protein kinase network.
The families ofMAP kinases cascades (mitogen activated protein kinases) form major signalling systems by which cells transduce extracellular signals into cellular responses. Studying the regulation of these MAP kinase signalling pathways is of utmost importance in the understanding of the triggering of cell proliferation versus cell differentiation and the responses of the cell to stress or osm...
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We have previously reported that lead acetate activates protein kinase Calpha (PKCalpha) and induces DNA synthesis in human 1321N1 astrocytoma cells. In this study, we investigated the ability of lead to activate the mitogen-activated protein kinase (MAPK) cascade. We found that exposure to lead acetate (1-50 microM) resulted in concentration- and time-dependent activation of MAPK (extracellula...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1994
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.91.11.4925