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Year : 2018  |  Volume : 13  |  Issue : 7  |  Page : 1290-1293

Modulation of microglial functions by methyl jasmonate

Biology Department, University of British Columbia Okanagan Campus, Kelowna, BC, Canada

Correspondence Address:
Andis Klegeris
Biology Department, University of British Columbia Okanagan Campus, Kelowna, BC
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Source of Support: This study was supported by grants from the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Jack Brown and Family Alzheimer’s Disease Research Foundation, Conflict of Interest: None

DOI: 10.4103/1673-5374.235078

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Neuroinflammation contributes to the neurodegenerative processes in Alzheimer’s disease (AD); therefore, characterization of novel drug candidates aimed at combatting inflammation in the central nervous system is one of the potential avenues for the development of effective AD treatment and prevention strategies. Non-neuronal microglial cells orchestrate neuroinflammatory reactions, and their adverse activation has been linked to AD pathogenesis. Methyl jasmonate (MJ) has anti-cancer properties and has also been shown to reduce peripheral inflammation in pre-clinical models. Recently, anti-neuroinflammatory activity of MJ was demonstrated in mice, but the exact cellular and molecular mechanisms responsible for this beneficial effect are unknown. We hypothesized that MJ can regulate select microglial functions, and used two different in vitro models of microglia to test this hypothesis. MJ inhibited the production of damaging reactive oxygen species by differentiated human HL-60 promyelocytic leukemia cells without reducing their viability. MJ also selectively upregulated phagocytic activity of murine BV-2 microglia, but had no effect on nitric oxide secretion by these cells. Since microglial phagocytosis can be beneficial for clearance of amyloid β aggregates in AD, the observed upregulation of phagocytic activity by MJ, combined with its inhibitory effect on reactive oxygen species production, supports continued studies of MJ as a candidate drug for managing adverse neuroinflammation in AD.

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