{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T00:58:03Z","timestamp":1790643483319,"version":"4.1.0"},"reference-count":45,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T00:00:00Z","timestamp":1790294400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"vor","delay-in-days":3,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["J Transl Med"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Despite improved control of inflammatory disease activity in systemic lupus erythematosus (SLE), many patients experience persistent fatigue, impaired physical function, cognitive symptoms, sleep disturbance, and reduced exercise tolerance, including during remission. These symptoms are multifactorial and may not be adequately explained by conventional measures of inflammatory activity. Clinical and biological parallels with myalgic encephalomyelitis\/chronic fatigue syndrome (ME\/CFS) suggest that interacting immune, metabolic, vascular, and autonomic mechanisms may contribute to persistent symptom burden in a subgroup of patients with long-standing SLE.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To develop a subgroup-focused, non-linear, and testable framework for persistent symptoms in SLE by integrating established SLE evidence with carefully distinguished mechanistic insights from ME\/CFS research.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This Commentary is based on a targeted, non-systematic literature synthesis of publications identified in PubMed and Web of Science. Evidence was categorized as direct SLE evidence, evidence from ME\/CFS, or cross-condition mechanistic inference. Priority was given to human studies, systematic reviews, meta-analyses, and translational research addressing persistent symptoms, autonomic and endothelial dysfunction, mitochondrial and redox alterations, and neurocognitive manifestations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We propose a hypothesized SLE\u2013ME\/CFS research phenotype characterized by persistent, functionally limiting symptoms despite low inflammatory disease activity or remission. The phenotype includes fatigue lasting at least six months together with post-exertional symptom exacerbation, unrefreshing sleep, cognitive symptoms, and\/or orthostatic intolerance, following structured exclusion or assessment of alternative explanations and comorbidities. Direct SLE evidence supports the relevance of residual immune activation, oxidative stress, mitochondrial alterations, endothelial dysfunction, and dysautonomia. Findings from ME\/CFS further suggest potentially convergent mechanisms involving impaired cellular energetics, autonomic dysfunction, altered cerebral perfusion, and neuroimmune dysregulation. However, these cross-condition inferences require direct validation in SLE.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Persistent symptom burden in long-standing SLE may reflect a biologically distinct subgroup in which immune, autonomic, vascular, metabolic, and neurocognitive mechanisms interact dynamically. The proposed framework does not define a new diagnostic entity or fixed disease trajectory but provides a hypothesis-generating basis for prospective longitudinal studies. Multidimensional phenotyping may improve patient stratification, biomarker discovery, and supportive care for patients whose symptoms remain disproportionate to conventional measures of disease activity.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12967-026-08867-8","type":"journal-article","created":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T13:23:17Z","timestamp":1790342597000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Persistent symptom burden in long-standing systemic lupus erythematosus: a subgroup-focused hypothesis for an SLE\u2013ME\/CFS research phenotype"],"prefix":"10.1186","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6912-7999","authenticated-orcid":false,"given":"Lotte","family":"Habermann-Horstmeier","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,9,25]]},"reference":[{"key":"8867_CR1","doi-asserted-by":"publisher","first-page":"102356","DOI":"10.1016\/j.jaut.2019.102356","volume":"110","author":"DS Pisetsky","year":"2020","unstructured":"Pisetsky DS. 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No experiments were conducted on or with humans or animals for this study.","order":1,"name":"Ethics","label":"Ethical approval","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"Consent to participate & written consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":3,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The author declares that there is no conflict of interest.","order":4,"name":"Ethics","label":"Competing interest","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"1215"}}