{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T19:43:40Z","timestamp":1782935020109,"version":"3.54.5"},"reference-count":230,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T00:00:00Z","timestamp":1782172800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biology"],"abstract":"<jats:p>Adipose tissue remodeling is a dynamic process essential for metabolic homeostasis, enabling tissue expansion, extracellular matrix (ECM) turnover, angiogenesis, and coordinated immune adaptation. In obesity, however, maladaptive remodeling characterized by fibrosis, chronic low-grade inflammation, and hypoxia disrupts adipose plasticity and promotes systemic insulin resistance. Central to these processes is the tightly regulated homeostasis between proteases and their inhibitors, in which the serine protease inhibitor (serpin) superfamily represents an important yet underappreciated regulatory axis. Beyond their classical roles in coagulation and fibrinolysis, serpins regulate ECM remodeling, macrophage recruitment and polarization, cytokine signaling, angiogenic responses, adipokine activity, and insulin sensitivity, thereby orchestrating immune\u2013metabolic crosstalk within adipose depots. Emerging evidence indicates that individual serpins exert distinct and context-dependent effects, with some promoting fibrosis, inflammation, and metabolic dysfunction, whereas others preserve adipose tissue homeostasis and metabolic function. This review synthesizes current knowledge on the structural and functional diversity of the serpin superfamily and examines their mechanistic roles in adipose tissue remodeling during obesity, with particular emphasis on how adipose-associated serpins regulate adipose tissue homeostasis, depot-specific remodeling, and immune\u2013metabolic crosstalk. The review further discusses the experimental and translational applications of emerging single-cell and spatial transcriptomics, multi-omics, and computational approaches that may advance the understanding of serpin biology, improve the investigation of human adipose tissue, and accelerate the identification of clinically relevant serpin-related biomarkers and therapeutic targets for obesity and related metabolic disorders. By positioning serpins as key regulators of adipose tissue remodeling and immune\u2013metabolic integration, this review highlights protease\u2013antiprotease balance as a central determinant of metabolic health and identifies serpins as promising biomarkers and therapeutic targets for obesity and related metabolic disorders.<\/jats:p>","DOI":"10.3390\/biology15130989","type":"journal-article","created":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T16:50:33Z","timestamp":1782924633000},"page":"989","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The Serpin Superfamily in Adipose Tissue Remodeling: Molecular Drivers of Immune\u2013Metabolic Crosstalk and Insulin Sensitivity"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-2785-9914","authenticated-orcid":false,"given":"Nouran","family":"Alwisi","sequence":"first","affiliation":[{"name":"College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0163-7228","authenticated-orcid":false,"given":"Alaa","family":"Abdelhamid","sequence":"additional","affiliation":[{"name":"College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amna","family":"Al-Quradaghi","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maha","family":"Talhami","sequence":"additional","affiliation":[{"name":"College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-0616-0085","authenticated-orcid":false,"given":"Aldana M.","family":"Alkuwari","sequence":"additional","affiliation":[{"name":"College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nadia","family":"Alsharif","sequence":"additional","affiliation":[{"name":"College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9117-8773","authenticated-orcid":false,"given":"Jessica","family":"Saliba","sequence":"additional","affiliation":[{"name":"Department of Public Health, Faculty of Health Sciences, University of Balamand, Sin El Fil P.O. Box 55251, Lebanon"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3524-7962","authenticated-orcid":false,"given":"Abdullah A.","family":"Shaito","sequence":"additional","affiliation":[{"name":"College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"},{"name":"Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha P.O. Box 2713, Qatar"},{"name":"Biomedical Research Center (BRC), QU Health, Qatar University, Doha P.O. Box 2713, Qatar"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"240","DOI":"10.1097\/MOL.0b013e32814e6d29","article-title":"Plasminogen activator inhibitor-1, adipose tissue and insulin resistance","volume":"18","author":"Alessi","year":"2007","journal-title":"Curr. Opin. 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