{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"bioRxiv"}],"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T17:26:55Z","timestamp":1785432415286,"version":"3.56.0"},"posted":{"date-parts":[[2026,7,7]]},"group-title":"Cell Biology","reference-count":67,"publisher":"openRxiv","license":[{"start":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T00:00:00Z","timestamp":1783382400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000062","name":"The National Institute of Diabetes and Digestive and Kidney Diseases","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100000062","id-type":"DOI","asserted-by":"crossref"}]},{"award":["25TPA1480256"],"award-info":[{"award-number":["25TPA1480256"]}],"id":[{"id":"https:\/\/ror.org\/013kjyp64","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000062","name":"The National Institute of Diabetes and Digestive and Kidney Diseases","doi-asserted-by":"crossref","award":["F32DK141191"],"award-info":[{"award-number":["F32DK141191"]}],"id":[{"id":"10.13039\/100000062","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/100000050","name":"The National Heart, Lung, and Blood Institute","doi-asserted-by":"crossref","award":["T32HL176457"],"award-info":[{"award-number":["T32HL176457"]}],"id":[{"id":"10.13039\/100000050","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2026,7,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                <jats:p>Coordination between innate immune signaling and glucose metabolism is fundamental to organismal homeostasis, yet despite decades of study linking immunity and metabolism, the mechanisms by which metabolic cells restrain antiviral innate signaling while preserving glycolytic competence during overnutrition remain poorly defined. Here we identify Tetherin (BST2) as a unique cell-intrinsic immunometabolic checkpoint that couples restraint of type I interferon (IFN-I) signaling to preservation of glycolytic capacity in adipocytes. Tetherin localizes to endoplasmic reticulum and organizes an interactome enriched for antiviral sensing regulators and glycolytic control nodes in adipocytes. Mechanistically, Tetherin directly engages the ubiquitin-dependent degradation machinery NDFIP1 and RNF128 to terminate IRF3 activation, thereby limiting pro-inflammatory, anti-glycolytic signaling and protecting adipocytes from metabolic dysfunction. In parallel, multiomics integration reveals that Tetherin also acts as a scaffold that binds and spatially organizes and activates PFKFB3 to increase glycolytic capacity and restrain MAVS\u2013IRF3 innate immune signalling. In vivo, adipocyte-specific loss of Tetherin amplifies high sucrose diet and high-fat-diet\u2013induced glucose intolerance and liver steatosis, whereas overexpression of human Tetherin in adipocyte suppresses obesity-driven interferon signaling, restores glycolytic pathway, and improves metabolic homeostasis. Orthogonal perturbations in cancer and insulinoma cells further confirm an immunometabolic role for Tetherin. Together, these findings define Tetherin as a dual node immunometabolic checkpoint that couples restraint of antiviral innate inflammatory signaling to maintenance of glycolytic competence, thereby safeguarding adipocyte metabolic homeostasis.<\/jats:p>","DOI":"10.64898\/2026.07.06.735062","type":"posted-content","created":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T13:28:55Z","timestamp":1783430935000},"source":"Crossref","is-referenced-by-count":0,"title":["Tetherin enforces an immunometabolic checkpoint that coordinates glycolytic and interferon signaling in adipocytes"],"prefix":"10.64898","author":[{"given":"Chung Hwan","family":"Cho","sequence":"first","affiliation":[{"name":"Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, New York 10029"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"YoungUk","family":"Jang","sequence":"additional","affiliation":[{"name":"Diabetes, Obesity, and Metabolism Institute, Icahn 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