PMID: 29755644May 15, 2018Paper

Potential implication of SGK1-dependent activity change in BV-2 microglial cells

International Journal of Physiology, Pathophysiology and Pharmacology
Hayato AsaiTakatoshi Ueki

Abstract

It has recently been established that microglial activation is involved in the pathophysiology of various neurological and psychiatric disorders such as amyotrophic lateral sclerosis and schizophrenia. The pathological molecular machineries underlying microglial activation and its accelerating molecules have been precisely described in the diseased central nervous system (CNS). However, to date, the details of physiological mechanism, which represses microglial activation, are still to be elucidated. Our latest report demonstrated that serum- and glucocorticoid-inducible kinases (SGK1 and SGK3) were expressed in multiple microglial cell lines, and their inhibitor enhanced the toxic effect of lipopolysaccharide on microglial production of inflammatory substances such as TNFα and iNOS. In the present report, we prepared SGK1-lacked microglial cell line (BV-2) and demonstrated that deficiency of SGK1 in microglia induced its toxic conversion, in which it took amoeboid morphology characteristic of reactive microglia, increased CD68 expression, quickened its proliferation, and showed higher susceptibility to ATP and subsequent cell death. Our data indicate that SGK1 plays pivotal roles in inhibiting its pathological activation, and ...Continue Reading

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