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Further, we and others have demonstrated that early life thymectomy results in a T cell phenotype that shares many features of classical T cell aging in an otherwise young healthy mouse. In this investigation, we sought to test the hypothesis that inducing premature T cell aging via early life thymectomy results in T cell mediated inflammation of the liver and visceral adipose tissue, as well as glucose intolerance in otherwise young mice. Mice were thymectomized at three weeks of age. At 9\u00a0months of age, thymectomized mice exhibited glucose intolerance that was independent of body mass along with greater frailty. Thymectomized mice exhibited blunted proportions of na\u00efve and greater proportions of memory cells in the spleen, liver and perigonadal adipose tissue (pgWAT). Bulk RNAseq of the pgWAT revealed that thymectomized mice exhibited an upregulation of genes responsible for immune activation, chemokine signaling, and inflammation along with a downregulation of genes responsible for metabolic function. We also found that T cells in the pgWAT of thymectomized mice exhibited greater chemokine receptor expression as well as increased markers of histopathological inflammation that were independent of greater adipose tissue expansion. These results suggest that early life thymectomy results in T cell mediated pgWAT inflammation, systemic glucose intolerance and frailty in adult mice.<\/jats:p>","DOI":"10.1186\/s12979-025-00531-x","type":"journal-article","created":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T10:51:33Z","timestamp":1759315893000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Early-life thymectomy results in visceral adipose tissue inflammation and glucose intolerance"],"prefix":"10.1186","volume":"22","author":[{"given":"David J.","family":"Buckley","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sogol","family":"Zahedi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Prema","family":"Velusamy","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sunita","family":"Sharma","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manoj","family":"Sabnani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lisa C.","family":"Flores","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ganga","family":"Tandukar","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuji","family":"Ikeno","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul J.","family":"Fadel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lisa A.","family":"Lesniewski","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel W.","family":"Trott","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,10,1]]},"reference":[{"key":"531_CR1","doi-asserted-by":"crossref","unstructured":"Brewer RA, Gibbs VK, Smith DL. 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