PMID- 35203379 OWN - NLM STAT- MEDLINE DCOM- 20220408 LR - 20220408 IS - 2073-4409 (Electronic) IS - 2073-4409 (Linking) VI - 11 IP - 4 DP - 2022 Feb 18 TI - The Modulatory Effects of DMF on Microglia in Aged Mice Are Sex-Specific. LID - 10.3390/cells11040729 [doi] LID - 729 AB - There is a striking sex-related difference in the prevalence of many neurodegenerative diseases, highlighting the need to consider whether treatments may exert sex-specific effects. A change in microglial activation state is a common feature of several neurodegenerative diseases and is considered to be a key factor in driving the inflammation that characterizes these conditions. Among the changes that have been described is a switch in microglial metabolism towards glycolysis which is associated with production of inflammatory mediators and reduced function. Marked sex-related differences in microglial number, phenotype and function have been described in late embryonic and early postnatal life in rodents and some reports suggest that sexual dimorphism extends into adulthood and age and, in models of Alzheimer's disease, the changes are more profound in microglia from female, compared with male, mice. Dimethyl fumarate (DMF) is a fumaric acid ester used in the treatment of psoriasis and relapsing remitting multiple sclerosis and, while its mechanism of action is unclear, it possesses anti-inflammatory and anti-oxidant properties and also impacts on cell metabolism. Here we treated 16-18-month-old female and male mice with DMF for 1 month and assessed its effect on microglia. The evidence indicates that it exerted sex-specific effects on microglial morphology and metabolism, reducing glycolysis only in microglia from female mice. The data suggest that this may result from its ability to inactivate glyceraldehyde-3-phosphate dehydrogenase (GAPDH). FAU - Mela, Virginia AU - Mela V AUID- ORCID: 0000-0001-7702-0972 AD - Department of Medicine and Dermatology, Faculty of Medicine, University of Malaga, 29010 Malaga, Spain. FAU - Sayd Gaban, Aline AU - Sayd Gaban A AD - Trinity College Institute of Neuroscience, Trinity College Dublin, D02 DK07 Dublin, Ireland. FAU - O'Neill, Eoin AU - O'Neill E AUID- ORCID: 0000-0002-2472-7795 AD - Trinity College Institute of Neuroscience, Trinity College Dublin, D02 DK07 Dublin, Ireland. FAU - Bechet, Sibylle AU - Bechet S AD - Trinity College Institute of Neuroscience, Trinity College Dublin, D02 DK07 Dublin, Ireland. FAU - Walsh, Aife AU - Walsh A AD - Trinity College Institute of Neuroscience, Trinity College Dublin, D02 DK07 Dublin, Ireland. FAU - Lynch, Marina A AU - Lynch MA AUID- ORCID: 0000-0002-4631-0499 AD - Trinity College Institute of Neuroscience, Trinity College Dublin, D02 DK07 Dublin, Ireland. LA - eng GR - 15/iA/3052/SFI_/Science Foundation Ireland/Ireland PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220218 PL - Switzerland TA - Cells JT - Cells JID - 101600052 RN - 0 (Inflammation Mediators) RN - FO2303MNI2 (Dimethyl Fumarate) SB - IM MH - Animals MH - *Dimethyl Fumarate/metabolism MH - Female MH - Inflammation/metabolism MH - Inflammation Mediators/metabolism MH - Male MH - Mice MH - Microglia/metabolism MH - *Multiple Sclerosis, Relapsing-Remitting/metabolism PMC - PMC8870377 OTO - NOTNLM OT - age OT - dimethyl fumarate OT - inflammation OT - metabolism OT - microglia OT - sexual dimorphism COIS- The authors declare no conflict of interest. EDAT- 2022/02/26 06:00 MHDA- 2022/04/09 06:00 PMCR- 2022/02/18 CRDT- 2022/02/25 01:01 PHST- 2022/01/12 00:00 [received] PHST- 2022/02/08 00:00 [revised] PHST- 2022/02/16 00:00 [accepted] PHST- 2022/02/25 01:01 [entrez] PHST- 2022/02/26 06:00 [pubmed] PHST- 2022/04/09 06:00 [medline] PHST- 2022/02/18 00:00 [pmc-release] AID - cells11040729 [pii] AID - cells-11-00729 [pii] AID - 10.3390/cells11040729 [doi] PST - epublish SO - Cells. 2022 Feb 18;11(4):729. doi: 10.3390/cells11040729.