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  • Title: Functions of MAP kinases: insights from gene-targeting studies.
    Author: Kuida K, Boucher DM.
    Journal: J Biochem; 2004 Jun; 135(6):653-6. PubMed ID: 15213239.
    Abstract:
    Mitogen-activated protein kinases (MAPKs) comprise a family of well-conserved serine/threonine kinases that control a vast array of physiological functions in a number of organisms ranging from yeast to mammals. Recently gene-targeting experiments have shed light on in vivo functions of MAPKs. In particular, embryos deficient in extracellular signal-regulated kinase (ERK) 2 lack mesoderm differentiation and placental angiogenesis. Knockout mice for c-Jun amino-terminal kinases have revealed roles for these kinases in neural apoptosis and activation/differentiation of T cells. Deletion of p38alpha MAPK results in angiogenic defects in the placenta and peripheral vessels. ERK5-deficient embryos are embryonic lethal due to defects in angiogenesis and cardiovascular development. Although these results have provided new insights for MAPK research, development and analysis of conditional knockout mice are required in order to investigate roles of MAPKs, especially, in other biological processes such as disease pathogenesis.
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