Does the MK2-dependent production of TNFα regulate mGluR-dependent synaptic plasticity?
EL Hogg, J Müller, S AL Corrêa - Current neuropharmacology, 2016 - ingentaconnect.com
EL Hogg, J Müller, S AL Corrêa
Current neuropharmacology, 2016•ingentaconnect.comThe molecular mechanisms and signalling cascades that trigger the induction of group I
metabotropic glutamate receptor (GI-mGluR)-dependent long-term depression (LTD) have
been the subject of intensive investigation for nearly two decades. The generation of
genetically modified animals has played a crucial role in elucidating the involvement of key
molecules regulating the induction and maintenance of mGluR-LTD. In this review we will
discuss the requirement of the newly discovered MAPKAPK-2 (MK2) and MAPKAPK-3 …
metabotropic glutamate receptor (GI-mGluR)-dependent long-term depression (LTD) have
been the subject of intensive investigation for nearly two decades. The generation of
genetically modified animals has played a crucial role in elucidating the involvement of key
molecules regulating the induction and maintenance of mGluR-LTD. In this review we will
discuss the requirement of the newly discovered MAPKAPK-2 (MK2) and MAPKAPK-3 …
The molecular mechanisms and signalling cascades that trigger the induction of group I metabotropic glutamate receptor (GI-mGluR)-dependent long-term depression (LTD) have been the subject of intensive investigation for nearly two decades. The generation of genetically modified animals has played a crucial role in elucidating the involvement of key molecules regulating the induction and maintenance of mGluR-LTD. In this review we will discuss the requirement of the newly discovered MAPKAPK-2 (MK2) and MAPKAPK-3 (MK3) signalling cascade in regulating GI-mGluR-LTD. Recently, it has been shown that the absence of MK2 impaired the induction of GI-mGluR-dependent LTD, an effect that is caused by reduced internalization of AMPA receptors (AMPAR). As the MK2 cascade directly regulates tumour necrosis factor alpha (TNFα) production, this review will examine the evidence that the release of TNFα acts to regulate glutamate receptor expression and therefore may play a functional role in the impairment of GI-mGluRdependent LTD and the cognitive deficits observed in MK2/3 double knockout animals. The strong links of increased TNFα production in both aging and neurodegenerative disease could implicate the action of MK2 in these processes.
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