Topical Steroid Withdrawal Is a Targetable Excess of Mitochondrial NAD
- PMID: 40088241
- PMCID: PMC12286752
- DOI: 10.1016/j.jid.2024.11.026
Topical Steroid Withdrawal Is a Targetable Excess of Mitochondrial NAD
Abstract
Topical steroid withdrawal (TSW) is a controversial diagnosis advocated by patients but often confused for atopic dermatitis. We conducted a multimodal pilot study of 16 patients fitting the TSW diagnostic profile, contrasting them against patients with atopic dermatitis (n = 10) and healthy controls (n = 11). Our clinical evaluations established objective diagnostic criteria that distinguish TSW from atopic dermatitis, metabolomics and transcriptomics of skin biopsies suggested that neuroinflammatory pathways are associated with complex I-mediated oxidation of NAD+, cellular and mouse models demonstrated that NAD+ metabolism was proinflammatory and glucocorticoid responsive, whereas functional assays demonstrated that the metabolic effects of glucocorticoids on the only cell type that aligns with the distribution and duration of TSW pathology could be mitigated by complex I blockade. These results informed a successful open-label trial using complex I-inhibiting interventions: metformin and berberine. Although this work represents a pilot study, to our knowledge, this work offers previously unreported mechanistic insights into TSW.
Keywords: Atopic dermatitis; Eczema; Glucocorticoids; Topical steroid withdrawal; Topical steroids.
Copyright © 2025 The Authors. Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Conflict of Interest
Allergy & Asthma Network has received funding from Sanofi, Regeneron, Genentech, Pfizer, and Novartis for unbranded disease awareness and education; such funding was not relevant to the presented research. Other authors have no conflicts of interest to report.
Update of
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Topical Steroid Withdrawal is a Targetable Excess of Mitochondrial NAD.medRxiv [Preprint]. 2024 Apr 19:2024.04.17.24305846. doi: 10.1101/2024.04.17.24305846. medRxiv. 2024. Update in: J Invest Dermatol. 2025 Aug;145(8):1953-1968.e14. doi: 10.1016/j.jid.2024.11.026. PMID: 38712043 Free PMC article. Updated. Preprint.
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