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This study aimed to identify key candidate genes associated with the risk of IS in younger individuals. In this study, we sourced IS datasets from GEO, conducted functional enrichment analysis, and used WGCNA to identify core gene modules, intersecting them with differentially expressed genes (DEGs) for candidate biomarkers. A logistic regression model evaluated these genes' diagnostic performance, validated through transient middle cerebral artery occlusion (tMCAO) murine models. Immune infiltration analyses characterized the immune profile of IS, while molecular docking assessed drug\u2013target interactions with \u0394G \u2264\u2009\u22127\u2009kcal\/mol. TREM1 and KLF4 are identified as key biomarkers for IS in younger and middle\u2010aged individuals, confirmed by a tMCAO mouse model showing elevated expression linked to neurobehavioral outcomes. Molecular docking revealed curcumin's Vina score of \u22127.0\u2009kcal\/mol with TREM1, while calcitriol, nimesulide, and triptonide showed strong interactions with KLF4, scoring \u22128.2, \u22127.0, and \u22127.2\u2009kcal\/mol, respectively. This study highlights the importance of age\u2010specific strategies for IS and identifies TREM1 and KLF4 as promising dual\u2010purpose biomarkers for diagnosis and therapy, enhancing prognostic assessments and outcomes for younger patients.<\/jats:p>","DOI":"10.1096\/fj.202501934rr","type":"journal-article","created":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T09:58:50Z","timestamp":1758880730000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Age\u2010Specific Biomarkers\n                    <scp>TREM1<\/scp>\n                    and\n                    <scp>KLF4<\/scp>\n                    in Ischemic Stroke: From Transcriptomic Discovery to Therapeutic Drug Screening"],"prefix":"10.1096","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-2709-5626","authenticated-orcid":false,"given":"Xin","family":"Zhou","sequence":"first","affiliation":[{"name":"School of Chemistry and Environmental 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