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Lysine lactylation is a metabolism-linked post-translational modification implicated in vascular and inflammatory biology, but its relationship to AD has not been well characterized. Public AD transcriptomic datasets were integrated for differential expression analysis and WGCNA. Lactylation-related DEGs were defined by intersecting DEGs with a curated lactylation-related gene set. Candidate genes were prioritized using complementary machine-learning models (LASSO, Random Forest, and XGBoost) as a feature-screening strategy with internal resampling and hold-out validation (cross-validation and a hold-out set). GFM1 expression was assessed by qRT-PCR and western blotting in human aortic tissues. Functional relevance was examined in primary mouse aortic vascular smooth muscle cells (VSMCs) using siRNA knockdown under angiotensin II stimulation (1.0 \u00b5mol\/L, 24\u00a0h), with proliferation and migration assessed by CCK-8, EdU, Transwell, and scratch-wound assays. We identified 217 DEGs and an AD-associated co-expression module. Intersection analysis yielded 11 lactylation-related DEGs, among which GFM1 received consistent support across models. GFM1 showed higher expression in AD tissues, and GFM1 knockdown attenuated angiotensin II\u2013induced VSMCs proliferation and migration. Integrated transcriptomics and machine-learning\u2013based prioritization nominate GFM1 as a lactylation-related candidate associated with AD, warranting further investigation. These findings are hypothesis-generating: model performance reflects internal evaluation only, and independent external validation and direct lactylation profiling are required to establish generalizability and clarify mechanistic links.<\/jats:p>","DOI":"10.1038\/s41598-026-40139-9","type":"journal-article","created":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T05:53:56Z","timestamp":1771048436000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Machine-learning\u2013guided transcriptomic integration identifies GFM1 as a lactylation-related candidate biomarker in aortic dissection"],"prefix":"10.1038","volume":"16","author":[{"given":"Junquan","family":"Chen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nan","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhigang","family":"Guo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunpeng","family":"Bai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,14]]},"reference":[{"key":"40139_CR1","doi-asserted-by":"publisher","first-page":"331","DOI":"10.1038\/s41569-020-00472-6","volume":"18","author":"E Bossone","year":"2021","unstructured":"Bossone, E. & Eagle, K. 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The studies involving human participants were reviewed and approved by the Ethics Committee of Tianjin Chest Hospital (approval No. 2023LW-001). The patients\/participants provided their written informed consent to participate in this study. All methods were performed in accordance with the relevant guidelines and regulations and with the Declaration of Helsinki. Written informed consent was obtained from the individual(s) for the publication of any potentially identifiable images or data included in this article. No live animals were used in this study. Primary mouse aortic VSMCs were commercially obtained. According to the vendor\u2019s documentation, these primary cells were procured under protocols approved by the vendor\u2019s Institutional Animal Care and Use Committee (IACUC) and in accordance with relevant guidelines. Because the study involved only commercially sourced primary cells and no procedures on live animals at our institution, institutional animal ethics approval was not required.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics statement"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"9033"}}