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J Neuroimmunol. 2019 Sep 15;334:576972. doi: 10.1016/j.jneuroim.2019.576972. Epub 2019 May 27.

Effects of lipoic acid on primary murine microglial cells.

Author information

1
Department of Neurology, L226, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, United States of America. Electronic address: chaudhar@ohsu.edu.
2
Department of Neurology, L226, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, United States of America; Research, VA Portland Health Care System, 3710 SW U.S. Veterans Hospital Road, Portland, OR 97239, United States of America.
3
Department of Neurology, L226, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, United States of America.

Abstract

The anti-oxidant lipoic acid (LA) is beneficial in murine models of multiple sclerosis (MS) and has recently been shown to slow brain atrophy in secondary progressive MS. The mechanism of these effects by LA is incompletely understood but may involve effects on microglia. The objective of this study is to understand how LA affects microglial cells. We cultured primary microglial cells from C57BL/6 adult mice brains and stimulated the cells with lipopolysaccharide (LPS) and interferon gamma (IFN-γ) in the presence or absence of LA. We demonstrate the inhibition of phagocytosis, rearrangement of actin, and formation of membrane blebs in stimulated microglia in the presence of LA. These experiments suggest that LA causes changes in microglial actin, which may lead to alterations in phagocytosis, mobility, and migration.

KEYWORDS:

Actin; Blebs; Cytoskeleton; Microglia; Phagocytosis

PMID:
31176014
PMCID:
PMC6660368
[Available on 2020-09-15]
DOI:
10.1016/j.jneuroim.2019.576972

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