Subcutaneous adipose tissue (SAT) (A) and visceral adipose tissue (VAT) (B) stromal vascular fraction (SVF) cells produced more IL-15 RNA than did adipocytes (p = 0.012 and p = 0.043, respectively, by Wilcoxon Signed Rank Test) in cohort B. IL-15Rα RNA levels did not significantly differ between SVF and adipocytes. Adipocyte (A Adipo) and non-adipocyte (SVF Non-adipo) were calculated to exclude contaminating cells as described in Section “Materials and Methods.” All but one SAT samples were from female patients. SAT samples were from breast reductions (5), panniculectomy (4), and ventral hernia repair (1). None of the SAT cases involved cancer or other inflammatory diseases. VAT samples were from colectomies (5), exploratory laparotomy (1), and gastrectomy (1). Two VAT cases did not involve cancer. Cohort B is described in Table S1 in Supplementary Material.