ArticleScientific reports2025
Mitochondrial glutathione transporter SLC25A40 regulates macrophage cytokine production.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Novel duck reovirus σC hijacks the mitochondrial COQ6-CoQ10 axis to drive NLRP3-dependent pyroptosis.PLoS pathogens · 2026Article
- Targeting Cuproptosis and Ferroptosis via a ROS-Responsive Nanoplatform for Enhanced Synergistic Therapy Against Hepatocellular Carcinoma.Antioxidants (Basel, Switzerland) · 2026Article
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Authors and funding
16 authors.
Funding
Abstract
Mitochondrial glutathione (mtGSH) supports iron-sulfur cluster (ISC) stability in the electron transport chain (ETC). Here we have investigated the role of the mtGSH transporter SLC25A40 in macrophage activation. SLC25A40 is present in both murine and human macrophages and its expression was increased by LPS treatment. Reducing SLC25A40 expression using siRNA destabilized ISC-rich ETC proteins and elevated mitochondrial and cellular reactive oxygen species (ROS). It also induced expression of the genes Gclc and Gclm, which are involved in GSH biosynthesis. SLC25A40 deficiency also diminished IL-1β and IL-10 production at the transcriptional level in response to LPS. As a result, the production of mature IL-1β was decreased following activation of NLRP3 by nigericin or ATP, with no effect on pyroptosis. Depleting mtGSH with mitochondrially-targeted CDNB phenocopied these defects, whereas supplementation with a cell-permeable GSH ester partially restored pro-IL-1β production. Together, these data identify SLC25A40 as a key regulator that sustains ETC integrity to promote cytokine production, revealing a previously unrecognized role for the SLC25A40-mtGSH axis in coupling mitochondrial redox control to macrophage activation.
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